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