1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 2003 Hidetoshi Shimokawa
5 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the acknowledgement as bellow:
18 *
19 * This product includes software developed by K. Kobayashi and H. Shimokawa
20 *
21 * 4. The name of the author may not be used to endorse or promote products
22 * derived from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
32 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
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 #include <sys/lock.h>
47 #include <sys/mutex.h>
48
49 #include <cam/cam.h>
50 #include <cam/cam_ccb.h>
51 #include <cam/cam_sim.h>
52 #include <cam/cam_xpt_sim.h>
53 #include <cam/cam_debug.h>
54 #include <cam/cam_periph.h>
55 #include <cam/scsi/scsi_all.h>
56
57 #include <dev/firewire/firewire.h>
58 #include <dev/firewire/firewirereg.h>
59 #include <dev/firewire/fwdma.h>
60 #include <dev/firewire/iec13213.h>
61 #include <dev/firewire/sbp.h>
62
63 #define ccb_sdev_ptr spriv_ptr0
64 #define ccb_sbp_ptr spriv_ptr1
65
66 #define SBP_NUM_TARGETS 8 /* MAX 64 */
67 /*
68 * Scan_bus doesn't work for more than 8 LUNs
69 * because of CAM_SCSI2_MAXLUN in cam_xpt.c
70 */
71 #define SBP_NUM_LUNS 64
72 #define SBP_MAXPHYS (128 * 1024)
73 #define SBP_DMA_SIZE PAGE_SIZE
74 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
75 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
76 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
77 #define SBP_MAX_XFER 5 /* max concurrent xfers per target */
78
79 /*
80 * STATUS FIFO addressing
81 * bit
82 *-----------------------
83 * 0- 1( 2): 0 (alignment)
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 static int sbp_cold = 1;
107 static int ex_login = 1;
108 static int login_delay = 1000; /* msec */
109 static int scan_delay = 500; /* msec */
110 static int use_doorbell = 0;
111 static int sbp_tags = 0;
112
113 SYSCTL_DECL(_hw_firewire);
114 static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
115 "SBP-II Subsystem");
116 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RWTUN, &debug, 0,
117 "SBP debug flag");
118 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RWTUN, &auto_login, 0,
119 "SBP perform login automatically");
120 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RWTUN, &max_speed, 0,
121 "SBP transfer max speed");
122 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RWTUN,
123 &ex_login, 0, "SBP enable exclusive login");
124 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RWTUN,
125 &login_delay, 0, "SBP login delay in msec");
126 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RWTUN,
127 &scan_delay, 0, "SBP scan delay in msec");
128 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RWTUN,
129 &use_doorbell, 0, "SBP use doorbell request");
130 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RWTUN, &sbp_tags, 0,
131 "SBP tagged queuing support");
132
133 #define NEED_RESPONSE 0
134
135 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
136 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
137 struct sbp_ocb {
138 STAILQ_ENTRY(sbp_ocb) ocb;
139 union ccb *ccb;
140 bus_addr_t bus_addr;
141 uint32_t orb[8];
142 #define IND_PTR_OFFSET (8*sizeof(uint32_t))
143 struct ind_ptr ind_ptr[SBP_IND_MAX];
144 struct sbp_dev *sdev;
145 int flags; /* XXX should be removed */
146 bus_dmamap_t dmamap;
147 struct callout timer;
148 };
149
150 #define OCB_ACT_MGM 0
151 #define OCB_ACT_CMD 1
152 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
153
154 struct sbp_dev {
155 #define SBP_DEV_RESET 0 /* accept login */
156 #define SBP_DEV_LOGIN 1 /* to login */
157 #define SBP_DEV_TOATTACH 3 /* to attach */
158 #define SBP_DEV_PROBE 4 /* scan lun */
159 #define SBP_DEV_ATTACHED 5 /* in operation */
160 #define SBP_DEV_DEAD 6 /* unavailable unit */
161 #define SBP_DEV_RETRY 7 /* unavailable unit */
162 uint8_t status:4,
163 timeout:4;
164 uint8_t type;
165 uint16_t lun_id;
166 uint16_t freeze;
167 #define ORB_LINK_DEAD (1 << 0)
168 #define VALID_LUN (1 << 1)
169 #define ORB_POINTER_ACTIVE (1 << 2)
170 #define ORB_POINTER_NEED (1 << 3)
171 #define ORB_DOORBELL_ACTIVE (1 << 4)
172 #define ORB_DOORBELL_NEED (1 << 5)
173 #define ORB_SHORTAGE (1 << 6)
174 uint16_t flags;
175 struct cam_path *path;
176 struct sbp_target *target;
177 struct fwdma_alloc dma;
178 struct sbp_login_res *login;
179 struct callout login_callout;
180 struct sbp_ocb *ocb;
181 STAILQ_HEAD(, sbp_ocb) ocbs;
182 STAILQ_HEAD(, sbp_ocb) free_ocbs;
183 struct sbp_ocb *last_ocb;
184 char vendor[32];
185 char product[32];
186 char revision[10];
187 char bustgtlun[32];
188 };
189
190 struct sbp_target {
191 int target_id;
192 int num_lun;
193 struct sbp_dev **luns;
194 struct sbp_softc *sbp;
195 struct fw_device *fwdev;
196 uint32_t mgm_hi, mgm_lo;
197 struct sbp_ocb *mgm_ocb_cur;
198 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
199 struct callout mgm_ocb_timeout;
200 struct callout scan_callout;
201 STAILQ_HEAD(, fw_xfer) xferlist;
202 int n_xfer;
203 };
204
205 struct sbp_softc {
206 struct firewire_dev_comm fd;
207 struct cam_sim *sim;
208 struct cam_path *path;
209 struct sbp_target targets[SBP_NUM_TARGETS];
210 struct fw_bind fwb;
211 bus_dma_tag_t dmat;
212 struct timeval last_busreset;
213 #define SIMQ_FREEZED 1
214 int flags;
215 struct mtx mtx;
216 };
217 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx)
218 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx)
219 #define SBP_LOCK_ASSERT(sbp) mtx_assert(&(sbp)->mtx, MA_OWNED)
220
221 static void sbp_post_explore (void *);
222 static void sbp_recv (struct fw_xfer *);
223 static void sbp_mgm_callback (struct fw_xfer *);
224 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
225 static void sbp_doorbell(struct sbp_dev *);
226 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
227 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
228 static void sbp_abort_ocb (struct sbp_ocb *, int);
229 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
230 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
231 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
232 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
233 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
234 static void sbp_cam_detach_sdev(struct sbp_dev *);
235 static void sbp_free_sdev(struct sbp_dev *);
236 static void sbp_cam_detach_target (struct sbp_target *);
237 static void sbp_free_target (struct sbp_target *);
238 static void sbp_mgm_timeout (void *arg);
239 static void sbp_timeout (void *arg);
240 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
241
242 static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
243
244 /* cam related functions */
245 static void sbp_action(struct cam_sim *sim, union ccb *ccb);
246 static void sbp_poll(struct cam_sim *sim);
247 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
248 static void sbp_cam_scan_target(void *arg);
249
250 static char *orb_status0[] = {
251 /* 0 */ "No additional information to report",
252 /* 1 */ "Request type not supported",
253 /* 2 */ "Speed not supported",
254 /* 3 */ "Page size not supported",
255 /* 4 */ "Access denied",
256 /* 5 */ "Logical unit not supported",
257 /* 6 */ "Maximum payload too small",
258 /* 7 */ "Reserved for future standardization",
259 /* 8 */ "Resources unavailable",
260 /* 9 */ "Function rejected",
261 /* A */ "Login ID not recognized",
262 /* B */ "Dummy ORB completed",
263 /* C */ "Request aborted",
264 /* FF */ "Unspecified error"
265 #define MAX_ORB_STATUS0 0xd
266 };
267
268 static char *orb_status1_object[] = {
269 /* 0 */ "Operation request block (ORB)",
270 /* 1 */ "Data buffer",
271 /* 2 */ "Page table",
272 /* 3 */ "Unable to specify"
273 };
274
275 static char *orb_status1_serial_bus_error[] = {
276 /* 0 */ "Missing acknowledge",
277 /* 1 */ "Reserved; not to be used",
278 /* 2 */ "Time-out error",
279 /* 3 */ "Reserved; not to be used",
280 /* 4 */ "Busy retry limit exceeded(X)",
281 /* 5 */ "Busy retry limit exceeded(A)",
282 /* 6 */ "Busy retry limit exceeded(B)",
283 /* 7 */ "Reserved for future standardization",
284 /* 8 */ "Reserved for future standardization",
285 /* 9 */ "Reserved for future standardization",
286 /* A */ "Reserved for future standardization",
287 /* B */ "Tardy retry limit exceeded",
288 /* C */ "Conflict error",
289 /* D */ "Data error",
290 /* E */ "Type error",
291 /* F */ "Address error"
292 };
293
294 static void
sbp_identify(driver_t * driver,device_t parent)295 sbp_identify(driver_t *driver, device_t parent)
296 {
297 SBP_DEBUG(0)
298 printf("sbp_identify\n");
299 END_DEBUG
300
301 if (device_find_child(parent, "sbp", DEVICE_UNIT_ANY) == NULL)
302 BUS_ADD_CHILD(parent, 0, "sbp", DEVICE_UNIT_ANY);
303 }
304
305 /*
306 * sbp_probe()
307 */
308 static int
sbp_probe(device_t dev)309 sbp_probe(device_t dev)
310 {
311
312 SBP_DEBUG(0)
313 printf("sbp_probe\n");
314 END_DEBUG
315
316 if (fw_get_unit(dev) != NULL)
317 return (ENXIO);
318
319 device_set_desc(dev, "SBP-2/SCSI over FireWire");
320
321 return (0);
322 }
323
324 /*
325 * Display device characteristics on the console
326 */
327 static void
sbp_show_sdev_info(struct sbp_dev * sdev)328 sbp_show_sdev_info(struct sbp_dev *sdev)
329 {
330 struct fw_device *fwdev;
331
332 fwdev = sdev->target->fwdev;
333 device_printf(sdev->target->sbp->fd.dev,
334 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d "
335 "speed:%d maxrec:%d\n",
336 __func__,
337 sdev->bustgtlun,
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 device_printf(sdev->target->sbp->fd.dev,
347 "%s: %s '%s' '%s' '%s'\n",
348 __func__,
349 sdev->bustgtlun,
350 sdev->vendor,
351 sdev->product,
352 sdev->revision);
353 }
354
355 static struct {
356 int bus;
357 int target;
358 struct fw_eui64 eui;
359 } wired[] = {
360 /* Bus Target EUI64 */
361 {-1, -1, {0,0}}
362 };
363
364 static int
sbp_new_target(struct sbp_softc * sbp,struct fw_device * fwdev)365 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
366 {
367 int bus, i, target=-1;
368 char w[SBP_NUM_TARGETS];
369
370 bzero(w, sizeof(w));
371 bus = device_get_unit(sbp->fd.dev);
372
373 /* XXX wired-down configuration should be gotten from
374 tunable or device hint */
375 for (i = 0; wired[i].bus >= 0; i++) {
376 if (wired[i].bus == bus) {
377 w[wired[i].target] = 1;
378 if (wired[i].eui.hi == fwdev->eui.hi &&
379 wired[i].eui.lo == fwdev->eui.lo)
380 target = wired[i].target;
381 }
382 }
383 if (target >= 0) {
384 if (target < SBP_NUM_TARGETS &&
385 sbp->targets[target].fwdev == NULL)
386 return (target);
387 device_printf(sbp->fd.dev,
388 "target %d is not free for %08x:%08x\n",
389 target, fwdev->eui.hi, fwdev->eui.lo);
390 target = -1;
391 }
392 /* non-wired target */
393 for (i = 0; i < SBP_NUM_TARGETS; i++)
394 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
395 target = i;
396 break;
397 }
398
399 return target;
400 }
401
402 static void
sbp_alloc_lun(struct sbp_target * target)403 sbp_alloc_lun(struct sbp_target *target)
404 {
405 struct crom_context cc;
406 struct csrreg *reg;
407 struct sbp_dev *sdev, **newluns;
408 struct sbp_softc *sbp;
409 int maxlun, lun, i;
410
411 sbp = target->sbp;
412 crom_init_context(&cc, target->fwdev->csrrom);
413 /* XXX shoud parse appropriate unit directories only */
414 maxlun = -1;
415 while (cc.depth >= 0) {
416 reg = crom_search_key(&cc, CROM_LUN);
417 if (reg == NULL)
418 break;
419 lun = reg->val & 0xffff;
420 SBP_DEBUG(0)
421 printf("target %d lun %d found\n", target->target_id, lun);
422 END_DEBUG
423 if (maxlun < lun)
424 maxlun = lun;
425 crom_next(&cc);
426 }
427 if (maxlun < 0)
428 device_printf(target->sbp->fd.dev, "%d no LUN found\n",
429 target->target_id);
430
431 maxlun++;
432 if (maxlun >= SBP_NUM_LUNS)
433 maxlun = SBP_NUM_LUNS;
434
435 /* Invalidiate stale devices */
436 for (lun = 0; lun < target->num_lun; lun++) {
437 sdev = target->luns[lun];
438 if (sdev == NULL)
439 continue;
440 sdev->flags &= ~VALID_LUN;
441 if (lun >= maxlun) {
442 /* lost device */
443 sbp_cam_detach_sdev(sdev);
444 sbp_free_sdev(sdev);
445 target->luns[lun] = NULL;
446 }
447 }
448
449 /* Reallocate */
450 if (maxlun != target->num_lun) {
451 newluns = (struct sbp_dev **) realloc(target->luns,
452 sizeof(struct sbp_dev *) * maxlun,
453 M_SBP, M_NOWAIT | M_ZERO);
454
455 if (newluns == NULL) {
456 printf("%s: realloc failed\n", __func__);
457 newluns = target->luns;
458 maxlun = target->num_lun;
459 }
460
461 /*
462 * We must zero the extended region for the case
463 * realloc() doesn't allocate new buffer.
464 */
465 if (maxlun > target->num_lun)
466 bzero(&newluns[target->num_lun],
467 sizeof(struct sbp_dev *) *
468 (maxlun - target->num_lun));
469
470 target->luns = newluns;
471 target->num_lun = maxlun;
472 }
473
474 crom_init_context(&cc, target->fwdev->csrrom);
475 while (cc.depth >= 0) {
476 int new = 0;
477
478 reg = crom_search_key(&cc, CROM_LUN);
479 if (reg == NULL)
480 break;
481 lun = reg->val & 0xffff;
482 if (lun >= SBP_NUM_LUNS) {
483 printf("too large lun %d\n", lun);
484 goto next;
485 }
486
487 sdev = target->luns[lun];
488 if (sdev == NULL) {
489 sdev = malloc(sizeof(struct sbp_dev),
490 M_SBP, M_NOWAIT | M_ZERO);
491 if (sdev == NULL) {
492 printf("%s: malloc failed\n", __func__);
493 goto next;
494 }
495 target->luns[lun] = sdev;
496 sdev->lun_id = lun;
497 sdev->target = target;
498 STAILQ_INIT(&sdev->ocbs);
499 callout_init_mtx(&sdev->login_callout, &sbp->mtx, 0);
500 sdev->status = SBP_DEV_RESET;
501 new = 1;
502 snprintf(sdev->bustgtlun, 32, "%s:%d:%d",
503 device_get_nameunit(sdev->target->sbp->fd.dev),
504 sdev->target->target_id,
505 sdev->lun_id);
506 }
507 sdev->flags |= VALID_LUN;
508 sdev->type = (reg->val & 0xff0000) >> 16;
509
510 if (new == 0)
511 goto next;
512
513 fwdma_malloc(sbp->fd.fc,
514 /* alignment */ sizeof(uint32_t),
515 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT |
516 BUS_DMA_COHERENT);
517 if (sdev->dma.v_addr == NULL) {
518 printf("%s: dma space allocation failed\n",
519 __func__);
520 free(sdev, M_SBP);
521 target->luns[lun] = NULL;
522 goto next;
523 }
524 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
525 sdev->ocb = (struct sbp_ocb *)
526 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
527 bzero((char *)sdev->ocb,
528 sizeof(struct sbp_ocb) * SBP_QUEUE_LEN);
529
530 STAILQ_INIT(&sdev->free_ocbs);
531 for (i = 0; i < SBP_QUEUE_LEN; i++) {
532 struct sbp_ocb *ocb;
533 ocb = &sdev->ocb[i];
534 ocb->bus_addr = sdev->dma.bus_addr
535 + SBP_LOGIN_SIZE
536 + sizeof(struct sbp_ocb) * i
537 + offsetof(struct sbp_ocb, orb[0]);
538 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
539 printf("sbp_attach: cannot create dmamap\n");
540 /* XXX */
541 goto next;
542 }
543 callout_init_mtx(&ocb->timer, &sbp->mtx, 0);
544 SBP_LOCK(sbp);
545 sbp_free_ocb(sdev, ocb);
546 SBP_UNLOCK(sbp);
547 }
548 next:
549 crom_next(&cc);
550 }
551
552 for (lun = 0; lun < target->num_lun; lun++) {
553 sdev = target->luns[lun];
554 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
555 sbp_cam_detach_sdev(sdev);
556 sbp_free_sdev(sdev);
557 target->luns[lun] = NULL;
558 }
559 }
560 }
561
562 static struct sbp_target *
sbp_alloc_target(struct sbp_softc * sbp,struct fw_device * fwdev)563 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
564 {
565 int i;
566 struct sbp_target *target;
567 struct crom_context cc;
568 struct csrreg *reg;
569
570 SBP_DEBUG(1)
571 printf("sbp_alloc_target\n");
572 END_DEBUG
573 i = sbp_new_target(sbp, fwdev);
574 if (i < 0) {
575 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
576 return NULL;
577 }
578 /* new target */
579 target = &sbp->targets[i];
580 target->fwdev = fwdev;
581 target->target_id = i;
582 /* XXX we may want to reload mgm port after each bus reset */
583 /* XXX there might be multiple management agents */
584 crom_init_context(&cc, target->fwdev->csrrom);
585 reg = crom_search_key(&cc, CROM_MGM);
586 if (reg == NULL || reg->val == 0) {
587 printf("NULL management address\n");
588 target->fwdev = NULL;
589 return NULL;
590 }
591 target->mgm_hi = 0xffff;
592 target->mgm_lo = 0xf0000000 | (reg->val << 2);
593 target->mgm_ocb_cur = NULL;
594 SBP_DEBUG(1)
595 printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
596 END_DEBUG
597 STAILQ_INIT(&target->xferlist);
598 target->n_xfer = 0;
599 STAILQ_INIT(&target->mgm_ocb_queue);
600 callout_init_mtx(&target->mgm_ocb_timeout, &sbp->mtx, 0);
601 callout_init_mtx(&target->scan_callout, &sbp->mtx, 0);
602
603 target->luns = NULL;
604 target->num_lun = 0;
605 return target;
606 }
607
608 static void
sbp_probe_lun(struct sbp_dev * sdev)609 sbp_probe_lun(struct sbp_dev *sdev)
610 {
611 struct fw_device *fwdev;
612 struct crom_context c, *cc = &c;
613 struct csrreg *reg;
614
615 bzero(sdev->vendor, sizeof(sdev->vendor));
616 bzero(sdev->product, sizeof(sdev->product));
617
618 fwdev = sdev->target->fwdev;
619 crom_init_context(cc, fwdev->csrrom);
620 /* get vendor string */
621 crom_search_key(cc, CSRKEY_VENDOR);
622 crom_next(cc);
623 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
624 /* skip to the unit directory for SBP-2 */
625 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
626 if (reg->val == CSRVAL_T10SBP2)
627 break;
628 crom_next(cc);
629 }
630 /* get firmware revision */
631 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
632 if (reg != NULL)
633 snprintf(sdev->revision, sizeof(sdev->revision),
634 "%06x", reg->val);
635 /* get product string */
636 crom_search_key(cc, CSRKEY_MODEL);
637 crom_next(cc);
638 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
639 }
640
641 static void
sbp_login_callout(void * arg)642 sbp_login_callout(void *arg)
643 {
644 struct sbp_dev *sdev = (struct sbp_dev *)arg;
645 SBP_LOCK_ASSERT(sdev->target->sbp);
646 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
647 }
648
649 static void
sbp_login(struct sbp_dev * sdev)650 sbp_login(struct sbp_dev *sdev)
651 {
652 struct timeval delta;
653 struct timeval t;
654 int ticks = 0;
655
656 microtime(&delta);
657 timevalsub(&delta, &sdev->target->sbp->last_busreset);
658 t.tv_sec = login_delay / 1000;
659 t.tv_usec = (login_delay % 1000) * 1000;
660 timevalsub(&t, &delta);
661 if (t.tv_sec >= 0 && t.tv_usec > 0)
662 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
663 SBP_DEBUG(0)
664 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__,
665 (intmax_t)t.tv_sec, t.tv_usec, ticks);
666 END_DEBUG
667 callout_reset(&sdev->login_callout, ticks,
668 sbp_login_callout, (void *)(sdev));
669 }
670
671 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
672 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
673
674 static void
sbp_probe_target(struct sbp_target * target)675 sbp_probe_target(struct sbp_target *target)
676 {
677 struct sbp_softc *sbp = target->sbp;
678 struct sbp_dev *sdev;
679 int i, alive;
680
681 alive = SBP_FWDEV_ALIVE(target->fwdev);
682 SBP_DEBUG(1)
683 device_printf(sbp->fd.dev, "%s %d%salive\n",
684 __func__, target->target_id,
685 (!alive) ? " not " : "");
686 END_DEBUG
687
688 sbp_alloc_lun(target);
689
690 /* XXX untimeout mgm_ocb and dequeue */
691 for (i=0; i < target->num_lun; i++) {
692 sdev = target->luns[i];
693 if (sdev == NULL)
694 continue;
695 if (alive && (sdev->status != SBP_DEV_DEAD)) {
696 if (sdev->path != NULL) {
697 xpt_freeze_devq(sdev->path, 1);
698 sdev->freeze++;
699 }
700 sbp_probe_lun(sdev);
701 sbp_show_sdev_info(sdev);
702
703 SBP_LOCK(sbp);
704 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
705 SBP_UNLOCK(sbp);
706 switch (sdev->status) {
707 case SBP_DEV_RESET:
708 /* new or revived target */
709 if (auto_login)
710 sbp_login(sdev);
711 break;
712 case SBP_DEV_TOATTACH:
713 case SBP_DEV_PROBE:
714 case SBP_DEV_ATTACHED:
715 case SBP_DEV_RETRY:
716 default:
717 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
718 break;
719 }
720 } else {
721 switch (sdev->status) {
722 case SBP_DEV_ATTACHED:
723 SBP_DEBUG(0)
724 /* the device has gone */
725 device_printf(sbp->fd.dev, "%s: lost target\n",
726 __func__);
727 END_DEBUG
728 if (sdev->path) {
729 xpt_freeze_devq(sdev->path, 1);
730 sdev->freeze++;
731 }
732 sdev->status = SBP_DEV_RETRY;
733 sbp_cam_detach_sdev(sdev);
734 sbp_free_sdev(sdev);
735 target->luns[i] = NULL;
736 break;
737 case SBP_DEV_PROBE:
738 case SBP_DEV_TOATTACH:
739 sdev->status = SBP_DEV_RESET;
740 break;
741 case SBP_DEV_RETRY:
742 case SBP_DEV_RESET:
743 case SBP_DEV_DEAD:
744 break;
745 }
746 }
747 }
748 }
749
750 static void
sbp_post_busreset(void * arg)751 sbp_post_busreset(void *arg)
752 {
753 struct sbp_softc *sbp;
754
755 sbp = (struct sbp_softc *)arg;
756 SBP_DEBUG(0)
757 printf("sbp_post_busreset\n");
758 END_DEBUG
759 SBP_LOCK(sbp);
760 if ((sbp->flags & SIMQ_FREEZED) == 0) {
761 xpt_freeze_simq(sbp->sim, /*count*/1);
762 sbp->flags |= SIMQ_FREEZED;
763 }
764 microtime(&sbp->last_busreset);
765 SBP_UNLOCK(sbp);
766 }
767
768 static void
sbp_post_explore(void * arg)769 sbp_post_explore(void *arg)
770 {
771 struct sbp_softc *sbp = (struct sbp_softc *)arg;
772 struct sbp_target *target;
773 struct fw_device *fwdev;
774 int i, alive;
775
776 SBP_DEBUG(0)
777 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
778 END_DEBUG
779 /* We need physical access */
780 if (!firewire_phydma_enable)
781 return;
782
783 if (sbp_cold > 0)
784 sbp_cold--;
785
786 SBP_LOCK(sbp);
787
788 /* Garbage Collection */
789 for (i = 0; i < SBP_NUM_TARGETS; i++) {
790 target = &sbp->targets[i];
791 if (target->fwdev == NULL)
792 continue;
793
794 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
795 if (target->fwdev == fwdev)
796 break;
797 if (fwdev == NULL) {
798 /* device has removed in lower driver */
799 sbp_cam_detach_target(target);
800 sbp_free_target(target);
801 }
802 }
803
804 /* traverse device list */
805 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
806 SBP_DEBUG(0)
807 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n",
808 __func__, fwdev->eui.hi, fwdev->eui.lo,
809 (fwdev->status != FWDEVATTACHED) ? "not" : "",
810 fwdev->status);
811 END_DEBUG
812 alive = SBP_FWDEV_ALIVE(fwdev);
813 for (i = 0; i < SBP_NUM_TARGETS; i++) {
814 target = &sbp->targets[i];
815 if (target->fwdev == fwdev) {
816 /* known target */
817 break;
818 }
819 }
820 if (i == SBP_NUM_TARGETS) {
821 if (alive) {
822 /* new target */
823 target = sbp_alloc_target(sbp, fwdev);
824 if (target == NULL)
825 continue;
826 } else {
827 continue;
828 }
829 }
830
831 /*
832 * It is safe to drop the lock here as the target is already
833 * reserved, so there should be no contenders for it.
834 * And the target is not yet exposed, so there should not be
835 * any other accesses to it.
836 * Finally, the list being iterated is protected somewhere else.
837 */
838 SBP_UNLOCK(sbp);
839 sbp_probe_target(target);
840 SBP_LOCK(sbp);
841 if (target->num_lun == 0)
842 sbp_free_target(target);
843 }
844 if ((sbp->flags & SIMQ_FREEZED) != 0) {
845 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
846 sbp->flags &= ~SIMQ_FREEZED;
847 }
848 SBP_UNLOCK(sbp);
849 }
850
851 #if NEED_RESPONSE
852 static void
sbp_loginres_callback(struct fw_xfer * xfer)853 sbp_loginres_callback(struct fw_xfer *xfer)
854 {
855 struct sbp_dev *sdev;
856 sdev = (struct sbp_dev *)xfer->sc;
857 SBP_DEBUG(1)
858 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__);
859 END_DEBUG
860 /* recycle */
861 SBP_LOCK(sdev->target->sbp);
862 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
863 SBP_UNLOCK(sdev->target->sbp);
864 return;
865 }
866 #endif
867
868 static __inline void
sbp_xfer_free(struct fw_xfer * xfer)869 sbp_xfer_free(struct fw_xfer *xfer)
870 {
871 struct sbp_dev *sdev;
872
873 sdev = (struct sbp_dev *)xfer->sc;
874 fw_xfer_unload(xfer);
875 SBP_LOCK_ASSERT(sdev->target->sbp);
876 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
877 }
878
879 static void
sbp_reset_start_callback(struct fw_xfer * xfer)880 sbp_reset_start_callback(struct fw_xfer *xfer)
881 {
882 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
883 struct sbp_target *target = sdev->target;
884 int i;
885
886 if (xfer->resp != 0) {
887 device_printf(sdev->target->sbp->fd.dev,
888 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
889 }
890
891 SBP_LOCK(target->sbp);
892 for (i = 0; i < target->num_lun; i++) {
893 tsdev = target->luns[i];
894 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
895 sbp_login(tsdev);
896 }
897 SBP_UNLOCK(target->sbp);
898 }
899
900 static void
sbp_reset_start(struct sbp_dev * sdev)901 sbp_reset_start(struct sbp_dev *sdev)
902 {
903 struct fw_xfer *xfer;
904 struct fw_pkt *fp;
905
906 SBP_DEBUG(0)
907 device_printf(sdev->target->sbp->fd.dev,
908 "%s:%s\n", __func__,sdev->bustgtlun);
909 END_DEBUG
910
911 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
912 xfer->hand = sbp_reset_start_callback;
913 fp = &xfer->send.hdr;
914 fp->mode.wreqq.dest_hi = 0xffff;
915 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
916 fp->mode.wreqq.data = htonl(0xf);
917 fw_asyreq(xfer->fc, -1, xfer);
918 }
919
920 static void
sbp_mgm_callback(struct fw_xfer * xfer)921 sbp_mgm_callback(struct fw_xfer *xfer)
922 {
923 struct sbp_dev *sdev;
924
925 sdev = (struct sbp_dev *)xfer->sc;
926
927 SBP_DEBUG(1)
928 device_printf(sdev->target->sbp->fd.dev,
929 "%s:%s\n", __func__, sdev->bustgtlun);
930 END_DEBUG
931 SBP_LOCK(sdev->target->sbp);
932 sbp_xfer_free(xfer);
933 SBP_UNLOCK(sdev->target->sbp);
934 }
935
936 static struct sbp_dev *
sbp_next_dev(struct sbp_target * target,int lun)937 sbp_next_dev(struct sbp_target *target, int lun)
938 {
939 struct sbp_dev **sdevp;
940 int i;
941
942 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
943 i++, sdevp++)
944 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
945 return (*sdevp);
946 return (NULL);
947 }
948
949 #define SCAN_PRI 1
950 static void
sbp_cam_scan_lun(struct cam_periph * periph,union ccb * ccb)951 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
952 {
953 struct sbp_softc *sbp;
954 struct sbp_target *target;
955 struct sbp_dev *sdev;
956
957 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
958 target = sdev->target;
959 sbp = target->sbp;
960 SBP_LOCK(sbp);
961 SBP_DEBUG(0)
962 device_printf(sbp->fd.dev,
963 "%s:%s\n", __func__, sdev->bustgtlun);
964 END_DEBUG
965 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
966 sdev->status = SBP_DEV_ATTACHED;
967 } else {
968 device_printf(sbp->fd.dev,
969 "%s:%s failed\n", __func__, sdev->bustgtlun);
970 }
971 sdev = sbp_next_dev(target, sdev->lun_id + 1);
972 if (sdev == NULL) {
973 SBP_UNLOCK(sbp);
974 xpt_free_ccb(ccb);
975 return;
976 }
977 /* reuse ccb */
978 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
979 ccb->ccb_h.ccb_sdev_ptr = sdev;
980 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
981 SBP_UNLOCK(sbp);
982
983 xpt_action(ccb);
984 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
985 sdev->freeze = 1;
986 }
987
988 static void
sbp_cam_scan_target(void * arg)989 sbp_cam_scan_target(void *arg)
990 {
991 struct sbp_target *target = (struct sbp_target *)arg;
992 struct sbp_dev *sdev;
993 union ccb *ccb;
994
995 SBP_LOCK_ASSERT(target->sbp);
996 sdev = sbp_next_dev(target, 0);
997 if (sdev == NULL) {
998 printf("sbp_cam_scan_target: nothing to do for target%d\n",
999 target->target_id);
1000 return;
1001 }
1002 SBP_DEBUG(0)
1003 device_printf(sdev->target->sbp->fd.dev,
1004 "%s:%s\n", __func__, sdev->bustgtlun);
1005 END_DEBUG
1006 ccb = xpt_alloc_ccb_nowait();
1007 if (ccb == NULL) {
1008 printf("sbp_cam_scan_target: xpt_alloc_ccb_nowait() failed\n");
1009 return;
1010 }
1011 SBP_UNLOCK(target->sbp);
1012
1013 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1014 ccb->ccb_h.func_code = XPT_SCAN_LUN;
1015 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1016 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1017 ccb->crcn.flags = CAM_FLAG_NONE;
1018 ccb->ccb_h.ccb_sdev_ptr = sdev;
1019
1020 /* The scan is in progress now. */
1021 xpt_action(ccb);
1022
1023 SBP_LOCK(target->sbp);
1024 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1025 sdev->freeze = 1;
1026 }
1027
1028 static __inline void
sbp_scan_dev(struct sbp_dev * sdev)1029 sbp_scan_dev(struct sbp_dev *sdev)
1030 {
1031 sdev->status = SBP_DEV_PROBE;
1032 callout_reset_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0,
1033 sbp_cam_scan_target, (void *)sdev->target, 0);
1034 }
1035
1036 static void
sbp_do_attach(struct fw_xfer * xfer)1037 sbp_do_attach(struct fw_xfer *xfer)
1038 {
1039 struct sbp_dev *sdev;
1040 struct sbp_target *target;
1041 struct sbp_softc *sbp;
1042
1043 sdev = (struct sbp_dev *)xfer->sc;
1044 target = sdev->target;
1045 sbp = target->sbp;
1046 SBP_LOCK(sbp);
1047 SBP_DEBUG(0)
1048 device_printf(sdev->target->sbp->fd.dev,
1049 "%s:%s\n", __func__, sdev->bustgtlun);
1050 END_DEBUG
1051 sbp_xfer_free(xfer);
1052
1053 if (sdev->path == NULL)
1054 xpt_create_path(&sdev->path, NULL,
1055 cam_sim_path(target->sbp->sim),
1056 target->target_id, sdev->lun_id);
1057
1058 /*
1059 * Let CAM scan the bus if we are in the boot process.
1060 * XXX xpt_scan_bus cannot detect LUN larger than 0
1061 * if LUN 0 doesn't exist.
1062 */
1063 if (sbp_cold > 0) {
1064 sdev->status = SBP_DEV_ATTACHED;
1065 SBP_UNLOCK(sbp);
1066 return;
1067 }
1068
1069 sbp_scan_dev(sdev);
1070 SBP_UNLOCK(sbp);
1071 }
1072
1073 static void
sbp_agent_reset_callback(struct fw_xfer * xfer)1074 sbp_agent_reset_callback(struct fw_xfer *xfer)
1075 {
1076 struct sbp_dev *sdev;
1077
1078 sdev = (struct sbp_dev *)xfer->sc;
1079 SBP_DEBUG(1)
1080 device_printf(sdev->target->sbp->fd.dev,
1081 "%s:%s\n", __func__, sdev->bustgtlun);
1082 END_DEBUG
1083 if (xfer->resp != 0) {
1084 device_printf(sdev->target->sbp->fd.dev,
1085 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
1086 }
1087
1088 SBP_LOCK(sdev->target->sbp);
1089 sbp_xfer_free(xfer);
1090 if (sdev->path) {
1091 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1092 sdev->freeze = 0;
1093 }
1094 SBP_UNLOCK(sdev->target->sbp);
1095 }
1096
1097 static void
sbp_agent_reset(struct sbp_dev * sdev)1098 sbp_agent_reset(struct sbp_dev *sdev)
1099 {
1100 struct fw_xfer *xfer;
1101 struct fw_pkt *fp;
1102
1103 SBP_LOCK_ASSERT(sdev->target->sbp);
1104 SBP_DEBUG(0)
1105 device_printf(sdev->target->sbp->fd.dev,
1106 "%s:%s\n", __func__, sdev->bustgtlun);
1107 END_DEBUG
1108 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1109 if (xfer == NULL)
1110 return;
1111 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1112 xfer->hand = sbp_agent_reset_callback;
1113 else
1114 xfer->hand = sbp_do_attach;
1115 fp = &xfer->send.hdr;
1116 fp->mode.wreqq.data = htonl(0xf);
1117 fw_asyreq(xfer->fc, -1, xfer);
1118 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1119 }
1120
1121 static void
sbp_busy_timeout_callback(struct fw_xfer * xfer)1122 sbp_busy_timeout_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 SBP_LOCK(sdev->target->sbp);
1132 sbp_xfer_free(xfer);
1133 sbp_agent_reset(sdev);
1134 SBP_UNLOCK(sdev->target->sbp);
1135 }
1136
1137 static void
sbp_busy_timeout(struct sbp_dev * sdev)1138 sbp_busy_timeout(struct sbp_dev *sdev)
1139 {
1140 struct fw_pkt *fp;
1141 struct fw_xfer *xfer;
1142 SBP_DEBUG(0)
1143 device_printf(sdev->target->sbp->fd.dev,
1144 "%s:%s\n", __func__, sdev->bustgtlun);
1145 END_DEBUG
1146 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1147
1148 xfer->hand = sbp_busy_timeout_callback;
1149 fp = &xfer->send.hdr;
1150 fp->mode.wreqq.dest_hi = 0xffff;
1151 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1152 fp->mode.wreqq.data = htonl((1 << (13 + 12)) | 0xf);
1153 fw_asyreq(xfer->fc, -1, xfer);
1154 }
1155
1156 static void
sbp_orb_pointer_callback(struct fw_xfer * xfer)1157 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1158 {
1159 struct sbp_dev *sdev;
1160 sdev = (struct sbp_dev *)xfer->sc;
1161
1162 SBP_DEBUG(2)
1163 device_printf(sdev->target->sbp->fd.dev,
1164 "%s:%s\n", __func__, sdev->bustgtlun);
1165 END_DEBUG
1166 if (xfer->resp != 0) {
1167 /* XXX */
1168 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1169 }
1170 SBP_LOCK(sdev->target->sbp);
1171 sbp_xfer_free(xfer);
1172
1173 sdev->flags &= ~ORB_POINTER_ACTIVE;
1174
1175 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1176 struct sbp_ocb *ocb;
1177
1178 sdev->flags &= ~ORB_POINTER_NEED;
1179 ocb = STAILQ_FIRST(&sdev->ocbs);
1180 if (ocb != NULL)
1181 sbp_orb_pointer(sdev, ocb);
1182 }
1183 SBP_UNLOCK(sdev->target->sbp);
1184 return;
1185 }
1186
1187 static void
sbp_orb_pointer(struct sbp_dev * sdev,struct sbp_ocb * ocb)1188 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1189 {
1190 struct fw_xfer *xfer;
1191 struct fw_pkt *fp;
1192 SBP_DEBUG(1)
1193 device_printf(sdev->target->sbp->fd.dev,
1194 "%s:%s 0x%08x\n",
1195 __func__, sdev->bustgtlun,
1196 (uint32_t)ocb->bus_addr);
1197 END_DEBUG
1198
1199 SBP_LOCK_ASSERT(sdev->target->sbp);
1200
1201 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1202 SBP_DEBUG(0)
1203 printf("%s: orb pointer active\n", __func__);
1204 END_DEBUG
1205 sdev->flags |= ORB_POINTER_NEED;
1206 return;
1207 }
1208
1209 sdev->flags |= ORB_POINTER_ACTIVE;
1210 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1211 if (xfer == NULL)
1212 return;
1213 xfer->hand = sbp_orb_pointer_callback;
1214
1215 fp = &xfer->send.hdr;
1216 fp->mode.wreqb.len = 8;
1217 fp->mode.wreqb.extcode = 0;
1218 xfer->send.payload[0] =
1219 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS) << 16));
1220 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
1221
1222 if (fw_asyreq(xfer->fc, -1, xfer) != 0) {
1223 sbp_xfer_free(xfer);
1224 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1225 xpt_done(ocb->ccb);
1226 }
1227 }
1228
1229 static void
sbp_doorbell_callback(struct fw_xfer * xfer)1230 sbp_doorbell_callback(struct fw_xfer *xfer)
1231 {
1232 struct sbp_dev *sdev;
1233 sdev = (struct sbp_dev *)xfer->sc;
1234
1235 SBP_DEBUG(1)
1236 device_printf(sdev->target->sbp->fd.dev,
1237 "%s:%s\n", __func__, sdev->bustgtlun);
1238 END_DEBUG
1239 if (xfer->resp != 0) {
1240 /* XXX */
1241 device_printf(sdev->target->sbp->fd.dev,
1242 "%s: xfer->resp = %d\n", __func__, xfer->resp);
1243 }
1244 SBP_LOCK(sdev->target->sbp);
1245 sbp_xfer_free(xfer);
1246 sdev->flags &= ~ORB_DOORBELL_ACTIVE;
1247 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
1248 sdev->flags &= ~ORB_DOORBELL_NEED;
1249 sbp_doorbell(sdev);
1250 }
1251 SBP_UNLOCK(sdev->target->sbp);
1252 }
1253
1254 static void
sbp_doorbell(struct sbp_dev * sdev)1255 sbp_doorbell(struct sbp_dev *sdev)
1256 {
1257 struct fw_xfer *xfer;
1258 struct fw_pkt *fp;
1259 SBP_DEBUG(1)
1260 device_printf(sdev->target->sbp->fd.dev,
1261 "%s:%s\n", __func__, sdev->bustgtlun);
1262 END_DEBUG
1263
1264 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
1265 sdev->flags |= ORB_DOORBELL_NEED;
1266 return;
1267 }
1268 sdev->flags |= ORB_DOORBELL_ACTIVE;
1269 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1270 if (xfer == NULL)
1271 return;
1272 xfer->hand = sbp_doorbell_callback;
1273 fp = &xfer->send.hdr;
1274 fp->mode.wreqq.data = htonl(0xf);
1275 fw_asyreq(xfer->fc, -1, xfer);
1276 }
1277
1278 static struct fw_xfer *
sbp_write_cmd(struct sbp_dev * sdev,int tcode,int offset)1279 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1280 {
1281 struct fw_xfer *xfer;
1282 struct fw_pkt *fp;
1283 struct sbp_target *target;
1284 int new = 0;
1285
1286 SBP_LOCK_ASSERT(sdev->target->sbp);
1287
1288 target = sdev->target;
1289 xfer = STAILQ_FIRST(&target->xferlist);
1290 if (xfer == NULL) {
1291 if (target->n_xfer > SBP_MAX_XFER) {
1292 printf("sbp: no more xfer for this target\n");
1293 return (NULL);
1294 }
1295 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1296 if (xfer == NULL) {
1297 printf("sbp: fw_xfer_alloc_buf failed\n");
1298 return NULL;
1299 }
1300 target->n_xfer++;
1301 if (debug)
1302 printf("sbp: alloc %d xfer\n", target->n_xfer);
1303 new = 1;
1304 } else {
1305 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1306 }
1307
1308 if (new) {
1309 xfer->recv.pay_len = 0;
1310 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1311 xfer->fc = sdev->target->sbp->fd.fc;
1312 }
1313
1314 if (tcode == FWTCODE_WREQB)
1315 xfer->send.pay_len = 8;
1316 else
1317 xfer->send.pay_len = 0;
1318
1319 xfer->sc = (caddr_t)sdev;
1320 fp = &xfer->send.hdr;
1321 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1322 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1323 fp->mode.wreqq.tlrt = 0;
1324 fp->mode.wreqq.tcode = tcode;
1325 fp->mode.wreqq.pri = 0;
1326 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1327
1328 return xfer;
1329 }
1330
1331 static void
sbp_mgm_orb(struct sbp_dev * sdev,int func,struct sbp_ocb * aocb)1332 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1333 {
1334 struct fw_xfer *xfer;
1335 struct fw_pkt *fp;
1336 struct sbp_ocb *ocb;
1337 struct sbp_target *target;
1338 int nid;
1339
1340 target = sdev->target;
1341 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1342
1343 SBP_LOCK_ASSERT(target->sbp);
1344 if (func == ORB_FUN_RUNQUEUE) {
1345 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1346 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1347 return;
1348 }
1349 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1350 goto start;
1351 }
1352 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1353 /* XXX */
1354 return;
1355 }
1356 ocb->flags = OCB_ACT_MGM;
1357 ocb->sdev = sdev;
1358
1359 bzero((void *)ocb->orb, sizeof(ocb->orb));
1360 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1361 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1362
1363 SBP_DEBUG(0)
1364 device_printf(sdev->target->sbp->fd.dev,
1365 "%s:%s %s\n",
1366 __func__,sdev->bustgtlun,
1367 orb_fun_name[(func >> 16) & 0xf]);
1368 END_DEBUG
1369 switch (func) {
1370 case ORB_FUN_LGI:
1371 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1372 ocb->orb[2] = htonl(nid << 16);
1373 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1374 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1375 if (ex_login)
1376 ocb->orb[4] |= htonl(ORB_EXV);
1377 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1378 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1379 break;
1380 case ORB_FUN_ATA:
1381 ocb->orb[0] = htonl((0 << 16) | 0);
1382 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1383 /* fall through */
1384 case ORB_FUN_RCN:
1385 case ORB_FUN_LGO:
1386 case ORB_FUN_LUR:
1387 case ORB_FUN_RST:
1388 case ORB_FUN_ATS:
1389 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1390 break;
1391 }
1392
1393 if (target->mgm_ocb_cur != NULL) {
1394 /* there is a standing ORB */
1395 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1396 return;
1397 }
1398 start:
1399 target->mgm_ocb_cur = ocb;
1400
1401 callout_reset(&target->mgm_ocb_timeout, 5 * hz,
1402 sbp_mgm_timeout, (caddr_t)ocb);
1403 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1404 if (xfer == NULL) {
1405 return;
1406 }
1407 xfer->hand = sbp_mgm_callback;
1408
1409 fp = &xfer->send.hdr;
1410 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1411 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1412 fp->mode.wreqb.len = 8;
1413 fp->mode.wreqb.extcode = 0;
1414 xfer->send.payload[0] = htonl(nid << 16);
1415 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1416
1417 fw_asyreq(xfer->fc, -1, xfer);
1418 }
1419
1420 static void
sbp_print_scsi_cmd(struct sbp_ocb * ocb)1421 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1422 {
1423 struct ccb_scsiio *csio;
1424
1425 csio = &ocb->ccb->csio;
1426 printf("%s:%d:%jx XPT_SCSI_IO: "
1427 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1428 ", flags: 0x%02x, "
1429 "%db cmd/%db data/%db sense\n",
1430 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1431 ocb->ccb->ccb_h.target_id,
1432 (uintmax_t)ocb->ccb->ccb_h.target_lun,
1433 csio->cdb_io.cdb_bytes[0],
1434 csio->cdb_io.cdb_bytes[1],
1435 csio->cdb_io.cdb_bytes[2],
1436 csio->cdb_io.cdb_bytes[3],
1437 csio->cdb_io.cdb_bytes[4],
1438 csio->cdb_io.cdb_bytes[5],
1439 csio->cdb_io.cdb_bytes[6],
1440 csio->cdb_io.cdb_bytes[7],
1441 csio->cdb_io.cdb_bytes[8],
1442 csio->cdb_io.cdb_bytes[9],
1443 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1444 csio->cdb_len, csio->dxfer_len,
1445 csio->sense_len);
1446 }
1447
1448 static void
sbp_scsi_status(struct sbp_status * sbp_status,struct sbp_ocb * ocb)1449 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1450 {
1451 struct sbp_cmd_status *sbp_cmd_status;
1452 struct scsi_sense_data_fixed *sense;
1453
1454 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1455 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data;
1456
1457 SBP_DEBUG(0)
1458 sbp_print_scsi_cmd(ocb);
1459 /* XXX need decode status */
1460 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1461 ocb->sdev->bustgtlun,
1462 sbp_cmd_status->status,
1463 sbp_cmd_status->sfmt,
1464 sbp_cmd_status->valid,
1465 sbp_cmd_status->s_key,
1466 sbp_cmd_status->s_code,
1467 sbp_cmd_status->s_qlfr,
1468 sbp_status->len);
1469 END_DEBUG
1470
1471 switch (sbp_cmd_status->status) {
1472 case SCSI_STATUS_CHECK_COND:
1473 case SCSI_STATUS_BUSY:
1474 case SCSI_STATUS_CMD_TERMINATED:
1475 if (sbp_cmd_status->sfmt == SBP_SFMT_CURR) {
1476 sense->error_code = SSD_CURRENT_ERROR;
1477 } else {
1478 sense->error_code = SSD_DEFERRED_ERROR;
1479 }
1480 if (sbp_cmd_status->valid)
1481 sense->error_code |= SSD_ERRCODE_VALID;
1482 sense->flags = sbp_cmd_status->s_key;
1483 if (sbp_cmd_status->mark)
1484 sense->flags |= SSD_FILEMARK;
1485 if (sbp_cmd_status->eom)
1486 sense->flags |= SSD_EOM;
1487 if (sbp_cmd_status->ill_len)
1488 sense->flags |= SSD_ILI;
1489
1490 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1491
1492 if (sbp_status->len <= 1)
1493 /* XXX not scsi status. shouldn't be happened */
1494 sense->extra_len = 0;
1495 else if (sbp_status->len <= 4)
1496 /* add_sense_code(_qual), info, cmd_spec_info */
1497 sense->extra_len = 6;
1498 else
1499 /* fru, sense_key_spec */
1500 sense->extra_len = 10;
1501
1502 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1503
1504 sense->add_sense_code = sbp_cmd_status->s_code;
1505 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1506 sense->fru = sbp_cmd_status->fru;
1507
1508 bcopy(&sbp_cmd_status->s_keydep[0],
1509 &sense->sense_key_spec[0], 3);
1510
1511 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1512 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1513 | CAM_AUTOSNS_VALID;
1514 /*
1515 {
1516 uint8_t j, *tmp;
1517 tmp = sense;
1518 for (j = 0; j < 32; j += 8) {
1519 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1520 tmp[j], tmp[j + 1], tmp[j + 2], tmp[j + 3],
1521 tmp[j + 4], tmp[j + 5], tmp[j + 6], tmp[j + 7]);
1522 }
1523
1524 }
1525 */
1526 break;
1527 default:
1528 device_printf(ocb->sdev->target->sbp->fd.dev,
1529 "%s:%s unknown scsi status 0x%x\n",
1530 __func__, ocb->sdev->bustgtlun,
1531 sbp_cmd_status->status);
1532 }
1533 }
1534
1535 static void
sbp_fix_inq_data(struct sbp_ocb * ocb)1536 sbp_fix_inq_data(struct sbp_ocb *ocb)
1537 {
1538 union ccb *ccb;
1539 struct sbp_dev *sdev;
1540 struct scsi_inquiry_data *inq;
1541
1542 ccb = ocb->ccb;
1543 sdev = ocb->sdev;
1544
1545 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1546 return;
1547 SBP_DEBUG(1)
1548 device_printf(sdev->target->sbp->fd.dev,
1549 "%s:%s\n", __func__, sdev->bustgtlun);
1550 END_DEBUG
1551 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1552 switch (SID_TYPE(inq)) {
1553 case T_DIRECT:
1554 /* fall through */
1555 case T_RBC:
1556 /*
1557 * Override vendor/product/revision information.
1558 * Some devices sometimes return strange strings.
1559 */
1560 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1561 bcopy(sdev->product, inq->product, sizeof(inq->product));
1562 bcopy(sdev->revision + 2, inq->revision, sizeof(inq->revision));
1563 break;
1564 }
1565 /*
1566 * Force to enable/disable tagged queuing.
1567 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
1568 */
1569 if (sbp_tags > 0)
1570 inq->flags |= SID_CmdQue;
1571 else if (sbp_tags < 0)
1572 inq->flags &= ~SID_CmdQue;
1573
1574 }
1575
1576 static void
sbp_recv1(struct fw_xfer * xfer)1577 sbp_recv1(struct fw_xfer *xfer)
1578 {
1579 struct fw_pkt *rfp;
1580 #if NEED_RESPONSE
1581 struct fw_pkt *sfp;
1582 #endif
1583 struct sbp_softc *sbp;
1584 struct sbp_dev *sdev;
1585 struct sbp_ocb *ocb;
1586 struct sbp_login_res *login_res = NULL;
1587 struct sbp_status *sbp_status;
1588 struct sbp_target *target;
1589 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1590 uint32_t addr;
1591 /*
1592 uint32_t *ld;
1593 ld = xfer->recv.buf;
1594 printf("sbp %x %d %d %08x %08x %08x %08x\n",
1595 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1596 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1597 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1598 */
1599 sbp = (struct sbp_softc *)xfer->sc;
1600 SBP_LOCK_ASSERT(sbp);
1601 if (xfer->resp != 0) {
1602 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1603 goto done0;
1604 }
1605 if (xfer->recv.payload == NULL) {
1606 printf("sbp_recv: xfer->recv.payload == NULL\n");
1607 goto done0;
1608 }
1609 rfp = &xfer->recv.hdr;
1610 if (rfp->mode.wreqb.tcode != FWTCODE_WREQB) {
1611 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1612 goto done0;
1613 }
1614 sbp_status = (struct sbp_status *)xfer->recv.payload;
1615 addr = rfp->mode.wreqb.dest_lo;
1616 SBP_DEBUG(2)
1617 printf("received address 0x%x\n", addr);
1618 END_DEBUG
1619 t = SBP_ADDR2TRG(addr);
1620 if (t >= SBP_NUM_TARGETS) {
1621 device_printf(sbp->fd.dev,
1622 "sbp_recv1: invalid target %d\n", t);
1623 goto done0;
1624 }
1625 target = &sbp->targets[t];
1626 l = SBP_ADDR2LUN(addr);
1627 if (l >= target->num_lun || target->luns[l] == NULL) {
1628 device_printf(sbp->fd.dev,
1629 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1630 goto done0;
1631 }
1632 sdev = target->luns[l];
1633
1634 ocb = NULL;
1635 switch (sbp_status->src) {
1636 case 0:
1637 case 1:
1638 /* check mgm_ocb_cur first */
1639 ocb = target->mgm_ocb_cur;
1640 if (ocb != NULL) {
1641 if (OCB_MATCH(ocb, sbp_status)) {
1642 callout_stop(&target->mgm_ocb_timeout);
1643 target->mgm_ocb_cur = NULL;
1644 break;
1645 }
1646 }
1647 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1648 if (ocb == NULL) {
1649 device_printf(sdev->target->sbp->fd.dev,
1650 "%s:%s No ocb(%x) on the queue\n",
1651 __func__,sdev->bustgtlun,
1652 ntohl(sbp_status->orb_lo));
1653 }
1654 break;
1655 case 2:
1656 /* unsolicit */
1657 device_printf(sdev->target->sbp->fd.dev,
1658 "%s:%s unsolicit status received\n",
1659 __func__, sdev->bustgtlun);
1660 break;
1661 default:
1662 device_printf(sdev->target->sbp->fd.dev,
1663 "%s:%s unknown sbp_status->src\n",
1664 __func__, sdev->bustgtlun);
1665 }
1666
1667 status_valid0 = (sbp_status->src < 2
1668 && sbp_status->resp == ORB_RES_CMPL
1669 && sbp_status->dead == 0);
1670 status_valid = (status_valid0 && sbp_status->status == 0);
1671
1672 if (!status_valid0 || debug > 2) {
1673 int status;
1674 SBP_DEBUG(0)
1675 device_printf(sdev->target->sbp->fd.dev,
1676 "%s:%s ORB status src:%x resp:%x dead:%x"
1677 " len:%x stat:%x orb:%x%08x\n",
1678 __func__, sdev->bustgtlun,
1679 sbp_status->src, sbp_status->resp, sbp_status->dead,
1680 sbp_status->len, sbp_status->status,
1681 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1682 END_DEBUG
1683 device_printf(sdev->target->sbp->fd.dev,
1684 "%s\n", sdev->bustgtlun);
1685 status = sbp_status->status;
1686 switch (sbp_status->resp) {
1687 case 0:
1688 if (status > MAX_ORB_STATUS0)
1689 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1690 else
1691 printf("%s\n", orb_status0[status]);
1692 break;
1693 case 1:
1694 printf("Obj: %s, Error: %s\n",
1695 orb_status1_object[(status >> 6) & 3],
1696 orb_status1_serial_bus_error[status & 0xf]);
1697 break;
1698 case 2:
1699 printf("Illegal request\n");
1700 break;
1701 case 3:
1702 printf("Vendor dependent\n");
1703 break;
1704 default:
1705 printf("unknown respose code %d\n", sbp_status->resp);
1706 }
1707 }
1708
1709 /* we have to reset the fetch agent if it's dead */
1710 if (sbp_status->dead) {
1711 if (sdev->path) {
1712 xpt_freeze_devq(sdev->path, 1);
1713 sdev->freeze++;
1714 }
1715 reset_agent = 1;
1716 }
1717
1718 if (ocb == NULL)
1719 goto done;
1720
1721 switch (ntohl(ocb->orb[4]) & ORB_FMT_MSK) {
1722 case ORB_FMT_NOP:
1723 break;
1724 case ORB_FMT_VED:
1725 break;
1726 case ORB_FMT_STD:
1727 switch (ocb->flags) {
1728 case OCB_ACT_MGM:
1729 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1730 reset_agent = 0;
1731 switch (orb_fun) {
1732 case ORB_FUN_LGI:
1733 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1734 login_res = sdev->login;
1735 login_res->len = ntohs(login_res->len);
1736 login_res->id = ntohs(login_res->id);
1737 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1738 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1739 if (status_valid) {
1740 SBP_DEBUG(0)
1741 device_printf(sdev->target->sbp->fd.dev,
1742 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n",
1743 __func__, sdev->bustgtlun,
1744 login_res->len, login_res->id,
1745 login_res->cmd_hi, login_res->cmd_lo,
1746 ntohs(login_res->recon_hold));
1747 END_DEBUG
1748 sbp_busy_timeout(sdev);
1749 } else {
1750 /* forgot logout? */
1751 device_printf(sdev->target->sbp->fd.dev,
1752 "%s:%s login failed\n",
1753 __func__, sdev->bustgtlun);
1754 sdev->status = SBP_DEV_RESET;
1755 }
1756 break;
1757 case ORB_FUN_RCN:
1758 login_res = sdev->login;
1759 if (status_valid) {
1760 SBP_DEBUG(0)
1761 device_printf(sdev->target->sbp->fd.dev,
1762 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n",
1763 __func__, sdev->bustgtlun,
1764 login_res->len, login_res->id,
1765 login_res->cmd_hi, login_res->cmd_lo);
1766 END_DEBUG
1767 if (sdev->status == SBP_DEV_ATTACHED)
1768 sbp_scan_dev(sdev);
1769 else
1770 sbp_agent_reset(sdev);
1771 } else {
1772 /* reconnection hold time exceed? */
1773 SBP_DEBUG(0)
1774 device_printf(sdev->target->sbp->fd.dev,
1775 "%s:%s reconnect failed\n",
1776 __func__, sdev->bustgtlun);
1777 END_DEBUG
1778 sbp_login(sdev);
1779 }
1780 break;
1781 case ORB_FUN_LGO:
1782 sdev->status = SBP_DEV_RESET;
1783 break;
1784 case ORB_FUN_RST:
1785 sbp_busy_timeout(sdev);
1786 break;
1787 case ORB_FUN_LUR:
1788 case ORB_FUN_ATA:
1789 case ORB_FUN_ATS:
1790 sbp_agent_reset(sdev);
1791 break;
1792 default:
1793 device_printf(sdev->target->sbp->fd.dev,
1794 "%s:%s unknown function %d\n",
1795 __func__, sdev->bustgtlun, orb_fun);
1796 break;
1797 }
1798 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1799 break;
1800 case OCB_ACT_CMD:
1801 sdev->timeout = 0;
1802 if (ocb->ccb != NULL) {
1803 union ccb *ccb;
1804
1805 ccb = ocb->ccb;
1806 if (sbp_status->len > 1) {
1807 sbp_scsi_status(sbp_status, ocb);
1808 } else {
1809 if (sbp_status->resp != ORB_RES_CMPL) {
1810 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1811 } else {
1812 ccb->ccb_h.status = CAM_REQ_CMP;
1813 }
1814 }
1815 /* fix up inq data */
1816 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1817 sbp_fix_inq_data(ocb);
1818 xpt_done(ccb);
1819 }
1820 break;
1821 default:
1822 break;
1823 }
1824 }
1825
1826 if (!use_doorbell)
1827 sbp_free_ocb(sdev, ocb);
1828 done:
1829 if (reset_agent)
1830 sbp_agent_reset(sdev);
1831
1832 done0:
1833 xfer->recv.pay_len = SBP_RECV_LEN;
1834 /* The received packet is usually small enough to be stored within
1835 * the buffer. In that case, the controller return ack_complete and
1836 * no respose is necessary.
1837 *
1838 * XXX fwohci.c and firewire.c should inform event_code such as
1839 * ack_complete or ack_pending to upper driver.
1840 */
1841 #if NEED_RESPONSE
1842 xfer->send.off = 0;
1843 sfp = (struct fw_pkt *)xfer->send.buf;
1844 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1845 xfer->dst = sfp->mode.wres.dst;
1846 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1847 xfer->hand = sbp_loginres_callback;
1848
1849 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1850 sfp->mode.wres.tcode = FWTCODE_WRES;
1851 sfp->mode.wres.rtcode = 0;
1852 sfp->mode.wres.pri = 0;
1853
1854 fw_asyreq(xfer->fc, -1, xfer);
1855 #else
1856 /* recycle */
1857 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1858 #endif
1859 }
1860
1861 static void
sbp_recv(struct fw_xfer * xfer)1862 sbp_recv(struct fw_xfer *xfer)
1863 {
1864 struct sbp_softc *sbp;
1865
1866 sbp = (struct sbp_softc *)xfer->sc;
1867 SBP_LOCK(sbp);
1868 sbp_recv1(xfer);
1869 SBP_UNLOCK(sbp);
1870 }
1871 /*
1872 * sbp_attach()
1873 */
1874 static int
sbp_attach(device_t dev)1875 sbp_attach(device_t dev)
1876 {
1877 struct sbp_softc *sbp;
1878 struct cam_devq *devq;
1879 struct firewire_comm *fc;
1880 int i, error;
1881
1882 if (DFLTPHYS > SBP_MAXPHYS)
1883 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than "
1884 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024,
1885 SBP_MAXPHYS / 1024);
1886
1887 if (!firewire_phydma_enable)
1888 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 "
1889 "for SBP over FireWire.\n");
1890 SBP_DEBUG(0)
1891 printf("sbp_attach (cold=%d)\n", cold);
1892 END_DEBUG
1893
1894 if (cold)
1895 sbp_cold++;
1896 sbp = device_get_softc(dev);
1897 sbp->fd.dev = dev;
1898 sbp->fd.fc = fc = fw_get_comm(dev);
1899 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF);
1900
1901 if (max_speed < 0)
1902 max_speed = fc->speed;
1903
1904 error = bus_dma_tag_create(/*parent*/fc->dmat,
1905 /* XXX shoud be 4 for sane backend? */
1906 /*alignment*/1,
1907 /*boundary*/0,
1908 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1909 /*highaddr*/BUS_SPACE_MAXADDR,
1910 /*filter*/NULL, /*filterarg*/NULL,
1911 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1912 /*maxsegsz*/SBP_SEG_MAX,
1913 /*flags*/BUS_DMA_ALLOCNOW,
1914 /*lockfunc*/busdma_lock_mutex,
1915 /*lockarg*/&sbp->mtx,
1916 &sbp->dmat);
1917 if (error != 0) {
1918 printf("sbp_attach: Could not allocate DMA tag "
1919 "- error %d\n", error);
1920 return (ENOMEM);
1921 }
1922
1923 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1924 if (devq == NULL)
1925 return (ENXIO);
1926
1927 for (i = 0; i < SBP_NUM_TARGETS; i++) {
1928 sbp->targets[i].fwdev = NULL;
1929 sbp->targets[i].luns = NULL;
1930 sbp->targets[i].sbp = sbp;
1931 }
1932
1933 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
1934 device_get_unit(dev),
1935 &sbp->mtx,
1936 /*untagged*/ 1,
1937 /*tagged*/ SBP_QUEUE_LEN - 1,
1938 devq);
1939
1940 if (sbp->sim == NULL) {
1941 cam_simq_free(devq);
1942 return (ENXIO);
1943 }
1944
1945 SBP_LOCK(sbp);
1946 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS)
1947 goto fail;
1948
1949 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim),
1950 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1951 xpt_bus_deregister(cam_sim_path(sbp->sim));
1952 goto fail;
1953 }
1954 SBP_UNLOCK(sbp);
1955
1956 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
1957 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
1958 sbp->fwb.end = sbp->fwb.start + 0xffff;
1959 /* pre-allocate xfer */
1960 STAILQ_INIT(&sbp->fwb.xferlist);
1961 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP,
1962 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2,
1963 fc, (void *)sbp, sbp_recv);
1964
1965 fw_bindadd(fc, &sbp->fwb);
1966
1967 sbp->fd.post_busreset = sbp_post_busreset;
1968 sbp->fd.post_explore = sbp_post_explore;
1969
1970 if (fc->status != -1) {
1971 sbp_post_busreset(sbp);
1972 sbp_post_explore(sbp);
1973 }
1974 SBP_LOCK(sbp);
1975 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
1976 SBP_UNLOCK(sbp);
1977
1978 return (0);
1979 fail:
1980 SBP_UNLOCK(sbp);
1981 cam_sim_free(sbp->sim, /*free_devq*/TRUE);
1982 return (ENXIO);
1983 }
1984
1985 static int
sbp_logout_all(struct sbp_softc * sbp)1986 sbp_logout_all(struct sbp_softc *sbp)
1987 {
1988 struct sbp_target *target;
1989 struct sbp_dev *sdev;
1990 int i, j;
1991
1992 SBP_DEBUG(0)
1993 printf("sbp_logout_all\n");
1994 END_DEBUG
1995 SBP_LOCK_ASSERT(sbp);
1996 for (i = 0; i < SBP_NUM_TARGETS; i++) {
1997 target = &sbp->targets[i];
1998 if (target->luns == NULL)
1999 continue;
2000 for (j = 0; j < target->num_lun; j++) {
2001 sdev = target->luns[j];
2002 if (sdev == NULL)
2003 continue;
2004 callout_stop(&sdev->login_callout);
2005 if (sdev->status >= SBP_DEV_TOATTACH &&
2006 sdev->status <= SBP_DEV_ATTACHED)
2007 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
2008 }
2009 }
2010
2011 return 0;
2012 }
2013
2014 static int
sbp_shutdown(device_t dev)2015 sbp_shutdown(device_t dev)
2016 {
2017 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2018
2019 SBP_LOCK(sbp);
2020 sbp_logout_all(sbp);
2021 SBP_UNLOCK(sbp);
2022 return (0);
2023 }
2024
2025 static void
sbp_free_sdev(struct sbp_dev * sdev)2026 sbp_free_sdev(struct sbp_dev *sdev)
2027 {
2028 struct sbp_softc *sbp;
2029 int i;
2030
2031 if (sdev == NULL)
2032 return;
2033 sbp = sdev->target->sbp;
2034 SBP_UNLOCK(sbp);
2035 callout_drain(&sdev->login_callout);
2036 for (i = 0; i < SBP_QUEUE_LEN; i++) {
2037 callout_drain(&sdev->ocb[i].timer);
2038 bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap);
2039 }
2040 fwdma_free(sbp->fd.fc, &sdev->dma);
2041 free(sdev, M_SBP);
2042 SBP_LOCK(sbp);
2043 }
2044
2045 static void
sbp_free_target(struct sbp_target * target)2046 sbp_free_target(struct sbp_target *target)
2047 {
2048 struct sbp_softc *sbp;
2049 struct fw_xfer *xfer, *next;
2050 int i;
2051
2052 if (target->luns == NULL)
2053 return;
2054 sbp = target->sbp;
2055 SBP_LOCK_ASSERT(sbp);
2056 SBP_UNLOCK(sbp);
2057 callout_drain(&target->mgm_ocb_timeout);
2058 callout_drain(&target->scan_callout);
2059 SBP_LOCK(sbp);
2060 for (i = 0; i < target->num_lun; i++)
2061 sbp_free_sdev(target->luns[i]);
2062
2063 STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) {
2064 fw_xfer_free_buf(xfer);
2065 }
2066 STAILQ_INIT(&target->xferlist);
2067 free(target->luns, M_SBP);
2068 target->num_lun = 0;
2069 target->luns = NULL;
2070 target->fwdev = NULL;
2071 }
2072
2073 static int
sbp_detach(device_t dev)2074 sbp_detach(device_t dev)
2075 {
2076 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2077 struct firewire_comm *fc = sbp->fd.fc;
2078 int i;
2079
2080 SBP_DEBUG(0)
2081 printf("sbp_detach\n");
2082 END_DEBUG
2083
2084 SBP_LOCK(sbp);
2085 for (i = 0; i < SBP_NUM_TARGETS; i++)
2086 sbp_cam_detach_target(&sbp->targets[i]);
2087
2088 xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2089 xpt_free_path(sbp->path);
2090 xpt_bus_deregister(cam_sim_path(sbp->sim));
2091 cam_sim_free(sbp->sim, /*free_devq*/ TRUE);
2092
2093 sbp_logout_all(sbp);
2094 SBP_UNLOCK(sbp);
2095
2096 /* XXX wait for logout completion */
2097 pause("sbpdtc", hz/2);
2098
2099 SBP_LOCK(sbp);
2100 for (i = 0; i < SBP_NUM_TARGETS; i++)
2101 sbp_free_target(&sbp->targets[i]);
2102 SBP_UNLOCK(sbp);
2103
2104 fw_bindremove(fc, &sbp->fwb);
2105 fw_xferlist_remove(&sbp->fwb.xferlist);
2106
2107 bus_dma_tag_destroy(sbp->dmat);
2108 mtx_destroy(&sbp->mtx);
2109
2110 return (0);
2111 }
2112
2113 static void
sbp_cam_detach_sdev(struct sbp_dev * sdev)2114 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2115 {
2116 if (sdev == NULL)
2117 return;
2118 if (sdev->status == SBP_DEV_DEAD)
2119 return;
2120 if (sdev->status == SBP_DEV_RESET)
2121 return;
2122 SBP_LOCK_ASSERT(sdev->target->sbp);
2123 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2124 if (sdev->path) {
2125 xpt_release_devq(sdev->path,
2126 sdev->freeze, TRUE);
2127 sdev->freeze = 0;
2128 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2129 xpt_free_path(sdev->path);
2130 sdev->path = NULL;
2131 }
2132 }
2133
2134 static void
sbp_cam_detach_target(struct sbp_target * target)2135 sbp_cam_detach_target(struct sbp_target *target)
2136 {
2137 int i;
2138
2139 SBP_LOCK_ASSERT(target->sbp);
2140 if (target->luns != NULL) {
2141 SBP_DEBUG(0)
2142 printf("sbp_detach_target %d\n", target->target_id);
2143 END_DEBUG
2144 callout_stop(&target->scan_callout);
2145 for (i = 0; i < target->num_lun; i++)
2146 sbp_cam_detach_sdev(target->luns[i]);
2147 }
2148 }
2149
2150 static void
sbp_target_reset(struct sbp_dev * sdev,int method)2151 sbp_target_reset(struct sbp_dev *sdev, int method)
2152 {
2153 int i;
2154 struct sbp_target *target = sdev->target;
2155 struct sbp_dev *tsdev;
2156
2157 SBP_LOCK_ASSERT(target->sbp);
2158 for (i = 0; i < target->num_lun; i++) {
2159 tsdev = target->luns[i];
2160 if (tsdev == NULL)
2161 continue;
2162 if (tsdev->status == SBP_DEV_DEAD)
2163 continue;
2164 if (tsdev->status == SBP_DEV_RESET)
2165 continue;
2166 xpt_freeze_devq(tsdev->path, 1);
2167 tsdev->freeze++;
2168 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2169 if (method == 2)
2170 tsdev->status = SBP_DEV_LOGIN;
2171 }
2172 switch (method) {
2173 case 1:
2174 printf("target reset\n");
2175 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2176 break;
2177 case 2:
2178 printf("reset start\n");
2179 sbp_reset_start(sdev);
2180 break;
2181 }
2182
2183 }
2184
2185 static void
sbp_mgm_timeout(void * arg)2186 sbp_mgm_timeout(void *arg)
2187 {
2188 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2189 struct sbp_dev *sdev = ocb->sdev;
2190 struct sbp_target *target = sdev->target;
2191
2192 SBP_LOCK_ASSERT(target->sbp);
2193 device_printf(sdev->target->sbp->fd.dev,
2194 "%s:%s request timeout(mgm orb:0x%08x)\n",
2195 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2196 target->mgm_ocb_cur = NULL;
2197 sbp_free_ocb(sdev, ocb);
2198 device_printf(sdev->target->sbp->fd.dev,
2199 "%s:%s reset start\n",
2200 __func__, sdev->bustgtlun);
2201 sbp_reset_start(sdev);
2202 }
2203
2204 static void
sbp_timeout(void * arg)2205 sbp_timeout(void *arg)
2206 {
2207 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2208 struct sbp_dev *sdev = ocb->sdev;
2209
2210 device_printf(sdev->target->sbp->fd.dev,
2211 "%s:%s request timeout(cmd orb:0x%08x) ... ",
2212 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2213
2214 SBP_LOCK_ASSERT(sdev->target->sbp);
2215 sdev->timeout++;
2216 switch (sdev->timeout) {
2217 case 1:
2218 printf("agent reset\n");
2219 xpt_freeze_devq(sdev->path, 1);
2220 sdev->freeze++;
2221 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2222 sbp_agent_reset(sdev);
2223 break;
2224 case 2:
2225 case 3:
2226 sbp_target_reset(sdev, sdev->timeout - 1);
2227 break;
2228 }
2229 }
2230
2231 static void
sbp_action(struct cam_sim * sim,union ccb * ccb)2232 sbp_action(struct cam_sim *sim, union ccb *ccb)
2233 {
2234
2235 struct sbp_softc *sbp = cam_sim_softc(sim);
2236 struct sbp_target *target = NULL;
2237 struct sbp_dev *sdev = NULL;
2238
2239 if (sbp != NULL)
2240 SBP_LOCK_ASSERT(sbp);
2241 /* target:lun -> sdev mapping */
2242 if (sbp != NULL
2243 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2244 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2245 target = &sbp->targets[ccb->ccb_h.target_id];
2246 if (target->fwdev != NULL
2247 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2248 && ccb->ccb_h.target_lun < target->num_lun) {
2249 sdev = target->luns[ccb->ccb_h.target_lun];
2250 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2251 sdev->status != SBP_DEV_PROBE)
2252 sdev = NULL;
2253 }
2254 }
2255
2256 SBP_DEBUG(1)
2257 if (sdev == NULL)
2258 printf("invalid target %d lun %jx\n",
2259 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun);
2260 END_DEBUG
2261
2262 switch (ccb->ccb_h.func_code) {
2263 case XPT_SCSI_IO:
2264 case XPT_RESET_DEV:
2265 case XPT_GET_TRAN_SETTINGS:
2266 case XPT_SET_TRAN_SETTINGS:
2267 case XPT_CALC_GEOMETRY:
2268 if (sdev == NULL) {
2269 SBP_DEBUG(1)
2270 printf("%s:%d:%jx:func_code 0x%04x: "
2271 "Invalid target (target needed)\n",
2272 device_get_nameunit(sbp->fd.dev),
2273 ccb->ccb_h.target_id,
2274 (uintmax_t)ccb->ccb_h.target_lun,
2275 ccb->ccb_h.func_code);
2276 END_DEBUG
2277
2278 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2279 xpt_done(ccb);
2280 return;
2281 }
2282 break;
2283 case XPT_PATH_INQ:
2284 case XPT_NOOP:
2285 /* The opcodes sometimes aimed at a target (sc is valid),
2286 * sometimes aimed at the SIM (sc is invalid and target is
2287 * CAM_TARGET_WILDCARD)
2288 */
2289 if (sbp == NULL &&
2290 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2291 SBP_DEBUG(0)
2292 printf("%s:%d:%jx func_code 0x%04x: "
2293 "Invalid target (no wildcard)\n",
2294 device_get_nameunit(sbp->fd.dev),
2295 ccb->ccb_h.target_id,
2296 (uintmax_t)ccb->ccb_h.target_lun,
2297 ccb->ccb_h.func_code);
2298 END_DEBUG
2299 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2300 xpt_done(ccb);
2301 return;
2302 }
2303 break;
2304 default:
2305 /* XXX Hm, we should check the input parameters */
2306 break;
2307 }
2308
2309 switch (ccb->ccb_h.func_code) {
2310 case XPT_SCSI_IO:
2311 {
2312 struct ccb_scsiio *csio;
2313 struct sbp_ocb *ocb;
2314 int speed;
2315 void *cdb;
2316
2317 csio = &ccb->csio;
2318 mtx_assert(sim->mtx, MA_OWNED);
2319
2320 SBP_DEBUG(2)
2321 printf("%s:%d:%jx XPT_SCSI_IO: "
2322 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2323 ", flags: 0x%02x, "
2324 "%db cmd/%db data/%db sense\n",
2325 device_get_nameunit(sbp->fd.dev),
2326 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun,
2327 csio->cdb_io.cdb_bytes[0],
2328 csio->cdb_io.cdb_bytes[1],
2329 csio->cdb_io.cdb_bytes[2],
2330 csio->cdb_io.cdb_bytes[3],
2331 csio->cdb_io.cdb_bytes[4],
2332 csio->cdb_io.cdb_bytes[5],
2333 csio->cdb_io.cdb_bytes[6],
2334 csio->cdb_io.cdb_bytes[7],
2335 csio->cdb_io.cdb_bytes[8],
2336 csio->cdb_io.cdb_bytes[9],
2337 ccb->ccb_h.flags & CAM_DIR_MASK,
2338 csio->cdb_len, csio->dxfer_len,
2339 csio->sense_len);
2340 END_DEBUG
2341 if (sdev == NULL) {
2342 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2343 xpt_done(ccb);
2344 return;
2345 }
2346 if (csio->cdb_len > sizeof(ocb->orb) - 5 * sizeof(uint32_t)) {
2347 ccb->ccb_h.status = CAM_REQ_INVALID;
2348 xpt_done(ccb);
2349 return;
2350 }
2351 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2352 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2353 if (sdev->freeze == 0) {
2354 xpt_freeze_devq(sdev->path, 1);
2355 sdev->freeze++;
2356 }
2357 xpt_done(ccb);
2358 return;
2359 }
2360
2361 ocb->flags = OCB_ACT_CMD;
2362 ocb->sdev = sdev;
2363 ocb->ccb = ccb;
2364 ccb->ccb_h.ccb_sdev_ptr = sdev;
2365 ocb->orb[0] = htonl(1U << 31);
2366 ocb->orb[1] = 0;
2367 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS) << 16));
2368 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2369 speed = min(target->fwdev->speed, max_speed);
2370 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2371 | ORB_CMD_MAXP(speed + 7));
2372 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2373 ocb->orb[4] |= htonl(ORB_CMD_IN);
2374 }
2375
2376 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2377 cdb = (void *)csio->cdb_io.cdb_ptr;
2378 else
2379 cdb = (void *)&csio->cdb_io.cdb_bytes;
2380 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2381 /*
2382 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2383 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2384 */
2385 if (ccb->csio.dxfer_len > 0) {
2386 int error;
2387
2388 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat,
2389 /*dma map*/ocb->dmamap,
2390 ccb,
2391 sbp_execute_ocb,
2392 ocb,
2393 /*flags*/0);
2394 if (error)
2395 printf("sbp: bus_dmamap_load error %d\n", error);
2396 } else
2397 sbp_execute_ocb(ocb, NULL, 0, 0);
2398 break;
2399 }
2400 case XPT_CALC_GEOMETRY:
2401 {
2402 struct ccb_calc_geometry *ccg;
2403
2404 ccg = &ccb->ccg;
2405 if (ccg->block_size == 0) {
2406 printf("sbp_action: block_size is 0.\n");
2407 ccb->ccb_h.status = CAM_REQ_INVALID;
2408 xpt_done(ccb);
2409 break;
2410 }
2411 SBP_DEBUG(1)
2412 printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: "
2413 "Volume size = %jd\n",
2414 device_get_nameunit(sbp->fd.dev),
2415 cam_sim_path(sbp->sim),
2416 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun,
2417 (uintmax_t)ccg->volume_size);
2418 END_DEBUG
2419
2420 cam_calc_geometry(ccg, /*extended*/1);
2421 xpt_done(ccb);
2422 break;
2423 }
2424 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
2425 {
2426
2427 SBP_DEBUG(1)
2428 printf("%s:%d:XPT_RESET_BUS: \n",
2429 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2430 END_DEBUG
2431
2432 ccb->ccb_h.status = CAM_REQ_INVALID;
2433 xpt_done(ccb);
2434 break;
2435 }
2436 case XPT_PATH_INQ: /* Path routing inquiry */
2437 {
2438 struct ccb_pathinq *cpi = &ccb->cpi;
2439
2440 SBP_DEBUG(1)
2441 printf("%s:%d:%jx XPT_PATH_INQ:.\n",
2442 device_get_nameunit(sbp->fd.dev),
2443 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun);
2444 END_DEBUG
2445 cpi->version_num = 1; /* XXX??? */
2446 cpi->hba_inquiry = PI_TAG_ABLE;
2447 cpi->target_sprt = 0;
2448 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2449 cpi->hba_eng_cnt = 0;
2450 cpi->max_target = SBP_NUM_TARGETS - 1;
2451 cpi->max_lun = SBP_NUM_LUNS - 1;
2452 cpi->initiator_id = SBP_INITIATOR;
2453 cpi->bus_id = sim->bus_id;
2454 cpi->base_transfer_speed = 400 * 1000 / 8;
2455 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2456 strlcpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2457 strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2458 cpi->unit_number = sim->unit_number;
2459 cpi->transport = XPORT_SPI; /* XX should have a FireWire */
2460 cpi->transport_version = 2;
2461 cpi->protocol = PROTO_SCSI;
2462 cpi->protocol_version = SCSI_REV_2;
2463
2464 cpi->ccb_h.status = CAM_REQ_CMP;
2465 xpt_done(ccb);
2466 break;
2467 }
2468 case XPT_GET_TRAN_SETTINGS:
2469 {
2470 struct ccb_trans_settings *cts = &ccb->cts;
2471 struct ccb_trans_settings_scsi *scsi =
2472 &cts->proto_specific.scsi;
2473 struct ccb_trans_settings_spi *spi =
2474 &cts->xport_specific.spi;
2475
2476 cts->protocol = PROTO_SCSI;
2477 cts->protocol_version = SCSI_REV_2;
2478 cts->transport = XPORT_SPI; /* should have a FireWire */
2479 cts->transport_version = 2;
2480 spi->valid = CTS_SPI_VALID_DISC;
2481 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2482 scsi->valid = CTS_SCSI_VALID_TQ;
2483 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2484 SBP_DEBUG(1)
2485 printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n",
2486 device_get_nameunit(sbp->fd.dev),
2487 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun);
2488 END_DEBUG
2489 cts->ccb_h.status = CAM_REQ_CMP;
2490 xpt_done(ccb);
2491 break;
2492 }
2493 case XPT_ABORT:
2494 ccb->ccb_h.status = CAM_UA_ABORT;
2495 xpt_done(ccb);
2496 break;
2497 case XPT_SET_TRAN_SETTINGS:
2498 /* XXX */
2499 default:
2500 ccb->ccb_h.status = CAM_REQ_INVALID;
2501 xpt_done(ccb);
2502 break;
2503 }
2504 return;
2505 }
2506
2507 static void
sbp_execute_ocb(void * arg,bus_dma_segment_t * segments,int seg,int error)2508 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
2509 {
2510 int i;
2511 struct sbp_ocb *ocb;
2512 struct sbp_ocb *prev;
2513 bus_dma_segment_t *s;
2514
2515 if (error)
2516 printf("sbp_execute_ocb: error=%d\n", error);
2517
2518 ocb = (struct sbp_ocb *)arg;
2519
2520 SBP_DEBUG(2)
2521 printf("sbp_execute_ocb: seg %d", seg);
2522 for (i = 0; i < seg; i++)
2523 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2524 (uintmax_t)segments[i].ds_len);
2525 printf("\n");
2526 END_DEBUG
2527
2528 if (seg == 1) {
2529 /* direct pointer */
2530 s = &segments[0];
2531 if (s->ds_len > SBP_SEG_MAX)
2532 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2533 ocb->orb[3] = htonl(s->ds_addr);
2534 ocb->orb[4] |= htonl(s->ds_len);
2535 } else if (seg > 1) {
2536 /* page table */
2537 for (i = 0; i < seg; i++) {
2538 s = &segments[i];
2539 SBP_DEBUG(0)
2540 /* XXX LSI Logic "< 16 byte" bug might be hit */
2541 if (s->ds_len < 16)
2542 printf("sbp_execute_ocb: warning, "
2543 "segment length(%zd) is less than 16."
2544 "(seg=%d/%d)\n", (size_t)s->ds_len, i + 1, seg);
2545 END_DEBUG
2546 if (s->ds_len > SBP_SEG_MAX)
2547 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2548 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2549 ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2550 }
2551 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2552 }
2553
2554 if (seg > 0)
2555 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2556 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2557 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2558 prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2559 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2560 if (use_doorbell) {
2561 if (prev == NULL) {
2562 if (ocb->sdev->last_ocb != NULL)
2563 sbp_doorbell(ocb->sdev);
2564 else
2565 sbp_orb_pointer(ocb->sdev, ocb);
2566 }
2567 } else {
2568 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2569 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2570 sbp_orb_pointer(ocb->sdev, ocb);
2571 }
2572 }
2573 }
2574
2575 static void
sbp_poll(struct cam_sim * sim)2576 sbp_poll(struct cam_sim *sim)
2577 {
2578 struct sbp_softc *sbp;
2579 struct firewire_comm *fc;
2580
2581 sbp = cam_sim_softc(sim);
2582 fc = sbp->fd.fc;
2583
2584 fc->poll(fc, 0, -1);
2585
2586 return;
2587 }
2588
2589 static struct sbp_ocb *
sbp_dequeue_ocb(struct sbp_dev * sdev,struct sbp_status * sbp_status)2590 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2591 {
2592 struct sbp_ocb *ocb;
2593 struct sbp_ocb *next;
2594 int order = 0;
2595
2596 SBP_DEBUG(1)
2597 device_printf(sdev->target->sbp->fd.dev,
2598 "%s:%s 0x%08x src %d\n",
2599 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src);
2600 END_DEBUG
2601 SBP_LOCK_ASSERT(sdev->target->sbp);
2602 STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) {
2603 if (OCB_MATCH(ocb, sbp_status)) {
2604 /* found */
2605 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2606 if (ocb->ccb != NULL)
2607 callout_stop(&ocb->timer);
2608 if (ntohl(ocb->orb[4]) & 0xffff) {
2609 bus_dmamap_sync(sdev->target->sbp->dmat,
2610 ocb->dmamap,
2611 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2612 BUS_DMASYNC_POSTREAD :
2613 BUS_DMASYNC_POSTWRITE);
2614 bus_dmamap_unload(sdev->target->sbp->dmat,
2615 ocb->dmamap);
2616 }
2617 if (!use_doorbell) {
2618 if (sbp_status->src == SRC_NO_NEXT) {
2619 if (next != NULL)
2620 sbp_orb_pointer(sdev, next);
2621 else if (order > 0) {
2622 /*
2623 * Unordered execution
2624 * We need to send pointer for
2625 * next ORB
2626 */
2627 sdev->flags |= ORB_LINK_DEAD;
2628 }
2629 }
2630 } else {
2631 /*
2632 * XXX this is not correct for unordered
2633 * execution.
2634 */
2635 if (sdev->last_ocb != NULL) {
2636 sbp_free_ocb(sdev, sdev->last_ocb);
2637 }
2638 sdev->last_ocb = ocb;
2639 if (next != NULL &&
2640 sbp_status->src == SRC_NO_NEXT)
2641 sbp_doorbell(sdev);
2642 }
2643 break;
2644 } else
2645 order++;
2646 }
2647 SBP_DEBUG(0)
2648 if (ocb && order > 0) {
2649 device_printf(sdev->target->sbp->fd.dev,
2650 "%s:%s unordered execution order:%d\n",
2651 __func__, sdev->bustgtlun, order);
2652 }
2653 END_DEBUG
2654 return (ocb);
2655 }
2656
2657 static struct sbp_ocb *
sbp_enqueue_ocb(struct sbp_dev * sdev,struct sbp_ocb * ocb)2658 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2659 {
2660 struct sbp_ocb *prev, *prev2;
2661
2662 SBP_LOCK_ASSERT(sdev->target->sbp);
2663 SBP_DEBUG(1)
2664 device_printf(sdev->target->sbp->fd.dev,
2665 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2666 END_DEBUG
2667 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2668 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2669
2670 if (ocb->ccb != NULL) {
2671 callout_reset_sbt(&ocb->timer,
2672 SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout,
2673 ocb, 0);
2674 }
2675
2676 if (use_doorbell && prev == NULL)
2677 prev2 = sdev->last_ocb;
2678
2679 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) {
2680 SBP_DEBUG(1)
2681 printf("linking chain 0x%jx -> 0x%jx\n",
2682 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
2683 END_DEBUG
2684 /*
2685 * Suppress compiler optimization so that orb[1] must be written first.
2686 * XXX We may need an explicit memory barrier for other architectures
2687 * other than i386/amd64.
2688 */
2689 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr);
2690 *(volatile uint32_t *)&prev2->orb[0] = 0;
2691 }
2692
2693 return prev;
2694 }
2695
2696 static struct sbp_ocb *
sbp_get_ocb(struct sbp_dev * sdev)2697 sbp_get_ocb(struct sbp_dev *sdev)
2698 {
2699 struct sbp_ocb *ocb;
2700
2701 SBP_LOCK_ASSERT(sdev->target->sbp);
2702 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2703 if (ocb == NULL) {
2704 sdev->flags |= ORB_SHORTAGE;
2705 printf("ocb shortage!!!\n");
2706 return NULL;
2707 }
2708 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2709 ocb->ccb = NULL;
2710 return (ocb);
2711 }
2712
2713 static void
sbp_free_ocb(struct sbp_dev * sdev,struct sbp_ocb * ocb)2714 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2715 {
2716 ocb->flags = 0;
2717 ocb->ccb = NULL;
2718
2719 SBP_LOCK_ASSERT(sdev->target->sbp);
2720 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2721 if ((sdev->flags & ORB_SHORTAGE) != 0) {
2722 int count;
2723
2724 sdev->flags &= ~ORB_SHORTAGE;
2725 count = sdev->freeze;
2726 sdev->freeze = 0;
2727 xpt_release_devq(sdev->path, count, TRUE);
2728 }
2729 }
2730
2731 static void
sbp_abort_ocb(struct sbp_ocb * ocb,int status)2732 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2733 {
2734 struct sbp_dev *sdev;
2735
2736 sdev = ocb->sdev;
2737 SBP_LOCK_ASSERT(sdev->target->sbp);
2738 SBP_DEBUG(0)
2739 device_printf(sdev->target->sbp->fd.dev,
2740 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2741 END_DEBUG
2742 SBP_DEBUG(1)
2743 if (ocb->ccb != NULL)
2744 sbp_print_scsi_cmd(ocb);
2745 END_DEBUG
2746 if (ntohl(ocb->orb[4]) & 0xffff) {
2747 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2748 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2749 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2750 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2751 }
2752 if (ocb->ccb != NULL) {
2753 callout_stop(&ocb->timer);
2754 ocb->ccb->ccb_h.status = status;
2755 xpt_done(ocb->ccb);
2756 }
2757 sbp_free_ocb(sdev, ocb);
2758 }
2759
2760 static void
sbp_abort_all_ocbs(struct sbp_dev * sdev,int status)2761 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2762 {
2763 struct sbp_ocb *ocb, *next;
2764 STAILQ_HEAD(, sbp_ocb) temp;
2765
2766 STAILQ_INIT(&temp);
2767 SBP_LOCK_ASSERT(sdev->target->sbp);
2768 STAILQ_CONCAT(&temp, &sdev->ocbs);
2769 STAILQ_INIT(&sdev->ocbs);
2770
2771 STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) {
2772 sbp_abort_ocb(ocb, status);
2773 }
2774 if (sdev->last_ocb != NULL) {
2775 sbp_free_ocb(sdev, sdev->last_ocb);
2776 sdev->last_ocb = NULL;
2777 }
2778 }
2779
2780 static device_method_t sbp_methods[] = {
2781 /* device interface */
2782 DEVMETHOD(device_identify, sbp_identify),
2783 DEVMETHOD(device_probe, sbp_probe),
2784 DEVMETHOD(device_attach, sbp_attach),
2785 DEVMETHOD(device_detach, sbp_detach),
2786 DEVMETHOD(device_shutdown, sbp_shutdown),
2787
2788 DEVMETHOD_END
2789 };
2790
2791 static driver_t sbp_driver = {
2792 "sbp",
2793 sbp_methods,
2794 sizeof(struct sbp_softc),
2795 };
2796 DRIVER_MODULE(sbp, firewire, sbp_driver, 0, 0);
2797 MODULE_VERSION(sbp, 1);
2798 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2799 MODULE_DEPEND(sbp, cam, 1, 1, 1);
2800