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