1 /*
2 * Copyright (c) 2003 Hidetoshi Shimokawa
3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the acknowledgement as bellow:
16 *
17 * This product includes software developed by K. Kobayashi and H. Shimokawa
18 *
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 *
34 * $FreeBSD: src/sys/dev/firewire/sbp.c,v 1.86 2007/03/16 01:23:36 simokawa Exp $
35 *
36 */
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/conf.h>
41 #include <sys/module.h>
42 #include <sys/bus.h>
43 #include <sys/kernel.h>
44 #include <sys/sysctl.h>
45 #include <sys/malloc.h>
46 #include <sys/thread2.h>
47
48 #include <bus/cam/cam.h>
49 #include <bus/cam/cam_ccb.h>
50 #include <bus/cam/cam_sim.h>
51 #include <bus/cam/cam_xpt_sim.h>
52 #include <bus/cam/cam_debug.h>
53 #include <bus/cam/cam_periph.h>
54 #include <bus/cam/scsi/scsi_all.h>
55 #include <bus/cam/cam_xpt_periph.h>
56
57 #include <bus/firewire/firewire.h>
58 #include <bus/firewire/firewirereg.h>
59 #include <bus/firewire/fwdma.h>
60 #include <bus/firewire/iec13213.h>
61 #include "sbp.h"
62
63 #define ccb_sdev_ptr spriv_ptr0
64 #define ccb_sbp_ptr spriv_ptr1
65
66 #define SBP_NUM_TARGETS 8 /* MAX 64 */
67 /*
68 * Scan_bus doesn't work for more than 8 LUNs
69 * because of CAM_SCSI2_MAXLUN in cam_xpt.c
70 */
71 #define SBP_NUM_LUNS 64
72 #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */)
73 #define SBP_DMA_SIZE PAGE_SIZE
74 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
75 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
76 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
77
78 /*
79 * STATUS FIFO addressing
80 * bit
81 * -----------------------
82 * 0- 1( 2): 0 (alingment)
83 * 2- 7( 6): target
84 * 8-15( 8): lun
85 * 16-31( 8): reserved
86 * 32-47(16): SBP_BIND_HI
87 * 48-64(16): bus_id, node_id
88 */
89 #define SBP_BIND_HI 0x1
90 #define SBP_DEV2ADDR(t, l) \
91 (((u_int64_t)SBP_BIND_HI << 32) \
92 | (((l) & 0xff) << 8) \
93 | (((t) & 0x3f) << 2))
94 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
95 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
96 #define SBP_INITIATOR 7
97
98 static char *orb_fun_name[] = {
99 ORB_FUN_NAMES
100 };
101
102 static int debug = 0;
103 static int auto_login = 1;
104 static int max_speed = -1;
105 #if 0
106 static int sbp_cold = 1;
107 #endif
108 static int ex_login = 1;
109 static int login_delay = 1000; /* msec */
110 static int scan_delay = 500; /* msec */
111 static int sbp_tags = 0;
112
113 SYSCTL_DECL(_hw_firewire);
114 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
115 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
116 "SBP debug flag");
117 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
118 "SBP perform login automatically");
119 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
120 "SBP transfer max speed");
121 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
122 &ex_login, 0, "SBP transfer max speed");
123 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
124 &login_delay, 0, "SBP login delay in msec");
125 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
126 &scan_delay, 0, "SBP scan delay in msec");
127 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
128 "SBP tagged queuing support");
129
130 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
131 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
132 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
133 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
134 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
135 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
136
137 #define NEED_RESPONSE 0
138
139 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
140 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
141
142 struct sbp_ocb {
143 STAILQ_ENTRY(sbp_ocb) ocb;
144 union ccb *ccb;
145 bus_addr_t bus_addr;
146 u_int32_t orb[8];
147 #define IND_PTR_OFFSET (8*sizeof(u_int32_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 };
153
154 #define OCB_ACT_MGM 0
155 #define OCB_ACT_CMD 1
156 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
157
158 struct sbp_dev{
159 #define SBP_DEV_RESET 0 /* accept login */
160 #define SBP_DEV_LOGIN 1 /* to login */
161 #if 0
162 #define SBP_DEV_RECONN 2 /* to reconnect */
163 #endif
164 #define SBP_DEV_TOATTACH 3 /* to attach */
165 #define SBP_DEV_PROBE 4 /* scan lun */
166 #define SBP_DEV_ATTACHED 5 /* in operation */
167 #define SBP_DEV_DEAD 6 /* unavailable unit */
168 #define SBP_DEV_RETRY 7 /* unavailable unit */
169 u_int8_t status:4,
170 timeout:4;
171 u_int8_t type;
172 u_int16_t lun_id;
173 u_int16_t freeze;
174 #define ORB_LINK_DEAD (1 << 0)
175 #define VALID_LUN (1 << 1)
176 #define ORB_POINTER_ACTIVE (1 << 2)
177 #define ORB_POINTER_NEED (1 << 3)
178 u_int16_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 char vendor[32];
188 char product[32];
189 char revision[10];
190 };
191
192 struct sbp_target {
193 int target_id;
194 int num_lun;
195 struct sbp_dev **luns;
196 struct sbp_softc *sbp;
197 struct fw_device *fwdev;
198 u_int32_t mgm_hi, mgm_lo;
199 struct sbp_ocb *mgm_ocb_cur;
200 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
201 struct callout mgm_ocb_timeout;
202 struct callout scan_callout;
203 STAILQ_HEAD(, fw_xfer) xferlist;
204 int n_xfer;
205 };
206
207 struct sbp_softc {
208 struct firewire_dev_comm fd;
209 struct cam_sim *sim;
210 struct cam_path *path;
211 struct sbp_target targets[SBP_NUM_TARGETS];
212 struct fw_bind fwb;
213 bus_dma_tag_t dmat;
214 struct timeval last_busreset;
215 #define SIMQ_FREEZED 1
216 int flags;
217 };
218
219 static void sbp_post_explore (void *);
220 static void sbp_recv (struct fw_xfer *);
221 static void sbp_mgm_callback (struct fw_xfer *);
222 #if 0
223 static void sbp_cmd_callback (struct fw_xfer *);
224 #endif
225 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
226 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
227 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
228 static void sbp_abort_ocb (struct sbp_ocb *, int);
229 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
230 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
231 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
232 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
233 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
234 static void sbp_cam_detach_sdev(struct sbp_dev *);
235 static void sbp_free_sdev(struct sbp_dev *);
236 static void sbp_cam_detach_target (struct sbp_target *);
237 static void sbp_free_target (struct sbp_target *);
238 static void sbp_mgm_timeout (void *arg);
239 static void sbp_timeout (void *arg);
240 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
241
242 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
243
244 /* cam related functions */
245 static void sbp_action(struct cam_sim *sim, union ccb *ccb);
246 static void sbp_poll(struct cam_sim *sim);
247 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
248 static void sbp_cam_scan_target(void *arg);
249
250 static char *orb_status0[] = {
251 /* 0 */ "No additional information to report",
252 /* 1 */ "Request type not supported",
253 /* 2 */ "Speed not supported",
254 /* 3 */ "Page size not supported",
255 /* 4 */ "Access denied",
256 /* 5 */ "Logical unit not supported",
257 /* 6 */ "Maximum payload too small",
258 /* 7 */ "Reserved for future standardization",
259 /* 8 */ "Resources unavailable",
260 /* 9 */ "Function rejected",
261 /* A */ "Login ID not recognized",
262 /* B */ "Dummy ORB completed",
263 /* C */ "Request aborted",
264 /* FF */ "Unspecified error"
265 #define MAX_ORB_STATUS0 0xd
266 };
267
268 static char *orb_status1_object[] = {
269 /* 0 */ "Operation request block (ORB)",
270 /* 1 */ "Data buffer",
271 /* 2 */ "Page table",
272 /* 3 */ "Unable to specify"
273 };
274
275 static char *orb_status1_serial_bus_error[] = {
276 /* 0 */ "Missing acknowledge",
277 /* 1 */ "Reserved; not to be used",
278 /* 2 */ "Time-out error",
279 /* 3 */ "Reserved; not to be used",
280 /* 4 */ "Busy retry limit exceeded(X)",
281 /* 5 */ "Busy retry limit exceeded(A)",
282 /* 6 */ "Busy retry limit exceeded(B)",
283 /* 7 */ "Reserved for future standardization",
284 /* 8 */ "Reserved for future standardization",
285 /* 9 */ "Reserved for future standardization",
286 /* A */ "Reserved for future standardization",
287 /* B */ "Tardy retry limit exceeded",
288 /* C */ "Conflict error",
289 /* D */ "Data error",
290 /* E */ "Type error",
291 /* F */ "Address error"
292 };
293
294 /*
295 * sbp_probe()
296 */
297 static int
sbp_probe(device_t dev)298 sbp_probe(device_t dev)
299 {
300 device_t pa;
301
302 SBP_DEBUG(0)
303 kprintf("sbp_probe\n");
304 END_DEBUG
305
306 pa = device_get_parent(dev);
307 if(device_get_unit(dev) != device_get_unit(pa)){
308 return(ENXIO);
309 }
310
311 device_set_desc(dev, "SBP-2/SCSI over FireWire");
312
313 if (bootverbose)
314 debug = bootverbose;
315 return (0);
316 }
317
318 static void
sbp_show_sdev_info(struct sbp_dev * sdev,int new)319 sbp_show_sdev_info(struct sbp_dev *sdev, int new)
320 {
321 struct fw_device *fwdev;
322
323 kprintf("%s:%d:%d ",
324 device_get_nameunit(sdev->target->sbp->fd.dev),
325 sdev->target->target_id,
326 sdev->lun_id
327 );
328 if (new == 2) {
329 return;
330 }
331 fwdev = sdev->target->fwdev;
332 kprintf("ordered:%d type:%d EUI:%08x%08x node:%d "
333 "speed:%d maxrec:%d",
334 (sdev->type & 0x40) >> 6,
335 (sdev->type & 0x1f),
336 fwdev->eui.hi,
337 fwdev->eui.lo,
338 fwdev->dst,
339 fwdev->speed,
340 fwdev->maxrec
341 );
342 if (new)
343 kprintf(" new!\n");
344 else
345 kprintf("\n");
346 sbp_show_sdev_info(sdev, 2);
347 kprintf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
348 }
349
350 static struct {
351 int bus;
352 int target;
353 struct fw_eui64 eui;
354 } wired[] = {
355 /* Bus Target EUI64 */
356 #if 0
357 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
358 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
359 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
360 #endif
361 {-1, -1, {0,0}}
362 };
363
364 static int
sbp_new_target(struct sbp_softc * sbp,struct fw_device * fwdev)365 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
366 {
367 int bus, i, target=-1;
368 char w[SBP_NUM_TARGETS];
369
370 bzero(w, sizeof(w));
371 bus = device_get_unit(sbp->fd.dev);
372
373 /* XXX wired-down configuration should be gotten from
374 tunable or device hint */
375 for (i = 0; wired[i].bus >= 0; i ++) {
376 if (wired[i].bus == bus) {
377 w[wired[i].target] = 1;
378 if (wired[i].eui.hi == fwdev->eui.hi &&
379 wired[i].eui.lo == fwdev->eui.lo)
380 target = wired[i].target;
381 }
382 }
383 if (target >= 0) {
384 if(target < SBP_NUM_TARGETS &&
385 sbp->targets[target].fwdev == NULL)
386 return(target);
387 device_printf(sbp->fd.dev,
388 "target %d is not free for %08x:%08x\n",
389 target, fwdev->eui.hi, fwdev->eui.lo);
390 target = -1;
391 }
392 /* non-wired target */
393 for (i = 0; i < SBP_NUM_TARGETS; i ++)
394 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
395 target = i;
396 break;
397 }
398
399 return target;
400 }
401
402 static void
sbp_alloc_lun(struct sbp_target * target)403 sbp_alloc_lun(struct sbp_target *target)
404 {
405 struct crom_context cc;
406 struct csrreg *reg;
407 struct sbp_dev *sdev, **newluns;
408 struct sbp_softc *sbp;
409 int maxlun, lun, i;
410
411 sbp = target->sbp;
412 crom_init_context(&cc, target->fwdev->csrrom);
413 /* XXX shoud parse appropriate unit directories only */
414 maxlun = -1;
415 while (cc.depth >= 0) {
416 reg = crom_search_key(&cc, CROM_LUN);
417 if (reg == NULL)
418 break;
419 lun = reg->val & 0xffff;
420 SBP_DEBUG(0)
421 kprintf("target %d lun %d found\n", target->target_id, lun);
422 END_DEBUG
423 if (maxlun < lun)
424 maxlun = lun;
425 crom_next(&cc);
426 }
427 if (maxlun < 0)
428 kprintf("%s:%d no LUN found\n",
429 device_get_nameunit(target->sbp->fd.dev),
430 target->target_id);
431
432 maxlun ++;
433 if (maxlun >= SBP_NUM_LUNS)
434 maxlun = SBP_NUM_LUNS;
435
436 /* Invalidiate stale devices */
437 for (lun = 0; lun < target->num_lun; lun ++) {
438 sdev = target->luns[lun];
439 if (sdev == NULL)
440 continue;
441 sdev->flags &= ~VALID_LUN;
442 if (lun >= maxlun) {
443 /* lost device */
444 sbp_cam_detach_sdev(sdev);
445 sbp_free_sdev(sdev);
446 }
447 }
448
449 /* Reallocate */
450 if (maxlun != target->num_lun) {
451 /*
452 * note: krealloc() does not support M_ZERO. We must zero
453 * the extended region manually.
454 */
455 newluns = krealloc(target->luns,
456 sizeof(struct sbp_dev *) * maxlun,
457 M_SBP, M_WAITOK);
458
459 if (maxlun > target->num_lun) {
460 bzero(&newluns[target->num_lun],
461 sizeof(struct sbp_dev *) *
462 (maxlun - target->num_lun));
463 }
464 target->luns = newluns;
465 target->num_lun = maxlun;
466 }
467
468 crom_init_context(&cc, target->fwdev->csrrom);
469 while (cc.depth >= 0) {
470 int new = 0;
471
472 reg = crom_search_key(&cc, CROM_LUN);
473 if (reg == NULL)
474 break;
475 lun = reg->val & 0xffff;
476 if (lun >= SBP_NUM_LUNS) {
477 kprintf("too large lun %d\n", lun);
478 goto next;
479 }
480
481 sdev = target->luns[lun];
482 if (sdev == NULL) {
483 sdev = kmalloc(sizeof(struct sbp_dev),
484 M_SBP, M_WAITOK | M_ZERO);
485 target->luns[lun] = sdev;
486 sdev->lun_id = lun;
487 sdev->target = target;
488 STAILQ_INIT(&sdev->ocbs);
489 CALLOUT_INIT(&sdev->login_callout);
490 sdev->status = SBP_DEV_RESET;
491 new = 1;
492 }
493 sdev->flags |= VALID_LUN;
494 sdev->type = (reg->val & 0xff0000) >> 16;
495
496 if (new == 0)
497 goto next;
498
499 fwdma_malloc(sbp->fd.fc,
500 /* alignment */ sizeof(u_int32_t),
501 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
502 if (sdev->dma.v_addr == NULL) {
503 kprintf("%s: dma space allocation failed\n",
504 __func__);
505 kfree(sdev, M_SBP);
506 target->luns[lun] = NULL;
507 goto next;
508 }
509 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
510 sdev->ocb = (struct sbp_ocb *)
511 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
512 bzero((char *)sdev->ocb,
513 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
514
515 STAILQ_INIT(&sdev->free_ocbs);
516 for (i = 0; i < SBP_QUEUE_LEN; i++) {
517 struct sbp_ocb *ocb;
518 ocb = &sdev->ocb[i];
519 ocb->bus_addr = sdev->dma.bus_addr
520 + SBP_LOGIN_SIZE
521 + sizeof(struct sbp_ocb) * i
522 + offsetof(struct sbp_ocb, orb[0]);
523 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
524 kprintf("sbp_attach: cannot create dmamap\n");
525 /* XXX */
526 goto next;
527 }
528 sbp_free_ocb(sdev, ocb);
529 }
530 next:
531 crom_next(&cc);
532 }
533
534 for (lun = 0; lun < target->num_lun; lun ++) {
535 sdev = target->luns[lun];
536 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
537 sbp_cam_detach_sdev(sdev);
538 sbp_free_sdev(sdev);
539 target->luns[lun] = NULL;
540 }
541 }
542 }
543
544 static struct sbp_target *
sbp_alloc_target(struct sbp_softc * sbp,struct fw_device * fwdev)545 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
546 {
547 int i;
548 struct sbp_target *target;
549 struct crom_context cc;
550 struct csrreg *reg;
551
552 SBP_DEBUG(1)
553 kprintf("sbp_alloc_target\n");
554 END_DEBUG
555 i = sbp_new_target(sbp, fwdev);
556 if (i < 0) {
557 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
558 return NULL;
559 }
560 /* new target */
561 target = &sbp->targets[i];
562 target->sbp = sbp;
563 target->fwdev = fwdev;
564 target->target_id = i;
565 /* XXX we may want to reload mgm port after each bus reset */
566 /* XXX there might be multiple management agents */
567 crom_init_context(&cc, target->fwdev->csrrom);
568 reg = crom_search_key(&cc, CROM_MGM);
569 if (reg == NULL || reg->val == 0) {
570 kprintf("NULL management address\n");
571 target->fwdev = NULL;
572 return NULL;
573 }
574 target->mgm_hi = 0xffff;
575 target->mgm_lo = 0xf0000000 | (reg->val << 2);
576 target->mgm_ocb_cur = NULL;
577 SBP_DEBUG(1)
578 kprintf("target:%d mgm_port: %x\n", i, target->mgm_lo);
579 END_DEBUG
580 STAILQ_INIT(&target->xferlist);
581 target->n_xfer = 0;
582 STAILQ_INIT(&target->mgm_ocb_queue);
583 CALLOUT_INIT(&target->mgm_ocb_timeout);
584 CALLOUT_INIT(&target->scan_callout);
585
586 target->luns = NULL;
587 target->num_lun = 0;
588 return target;
589 }
590
591 static void
sbp_probe_lun(struct sbp_dev * sdev)592 sbp_probe_lun(struct sbp_dev *sdev)
593 {
594 struct fw_device *fwdev;
595 struct crom_context c, *cc = &c;
596 struct csrreg *reg;
597
598 bzero(sdev->vendor, sizeof(sdev->vendor));
599 bzero(sdev->product, sizeof(sdev->product));
600
601 fwdev = sdev->target->fwdev;
602 crom_init_context(cc, fwdev->csrrom);
603 /* get vendor string */
604 crom_search_key(cc, CSRKEY_VENDOR);
605 crom_next(cc);
606 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
607 /* skip to the unit directory for SBP-2 */
608 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
609 if (reg->val == CSRVAL_T10SBP2)
610 break;
611 crom_next(cc);
612 }
613 /* get firmware revision */
614 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
615 if (reg != NULL)
616 ksnprintf(sdev->revision, sizeof(sdev->revision),
617 "%06x", reg->val);
618 /* get product string */
619 crom_search_key(cc, CSRKEY_MODEL);
620 crom_next(cc);
621 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
622 }
623
624 static void
sbp_login_callout(void * arg)625 sbp_login_callout(void *arg)
626 {
627 struct sbp_dev *sdev = (struct sbp_dev *)arg;
628 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
629 }
630
631 static void
sbp_login(struct sbp_dev * sdev)632 sbp_login(struct sbp_dev *sdev)
633 {
634 struct timeval delta;
635 struct timeval t;
636 int ticks = 0;
637
638 microtime(&delta);
639 timevalsub(&delta, &sdev->target->sbp->last_busreset);
640 t.tv_sec = login_delay / 1000;
641 t.tv_usec = (login_delay % 1000) * 1000;
642 timevalsub(&t, &delta);
643 if (t.tv_sec >= 0 && t.tv_usec > 0)
644 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
645 SBP_DEBUG(0)
646 kprintf("%s: sec = %ld usec = %ld ticks = %d\n", __func__,
647 t.tv_sec, t.tv_usec, ticks);
648 END_DEBUG
649 callout_reset(&sdev->login_callout, ticks,
650 sbp_login_callout, (void *)(sdev));
651 }
652
653 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
654 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
655
656 static void
sbp_probe_target(void * arg)657 sbp_probe_target(void *arg)
658 {
659 struct sbp_target *target = (struct sbp_target *)arg;
660 struct sbp_dev *sdev;
661 int i, alive;
662
663 alive = SBP_FWDEV_ALIVE(target->fwdev);
664 SBP_DEBUG(1)
665 kprintf("sbp_probe_target %d\n", target->target_id);
666 if (!alive)
667 kprintf("not alive\n");
668 END_DEBUG
669
670 sbp_alloc_lun(target);
671
672 /* XXX callout_stop mgm_ocb and dequeue */
673 for (i=0; i < target->num_lun; i++) {
674 sdev = target->luns[i];
675 if (sdev == NULL)
676 continue;
677 if (alive && (sdev->status != SBP_DEV_DEAD)) {
678 if (sdev->path != NULL) {
679 xpt_freeze_devq(sdev->path, 1);
680 sdev->freeze ++;
681 }
682 sbp_probe_lun(sdev);
683 SBP_DEBUG(0)
684 sbp_show_sdev_info(sdev,
685 (sdev->status == SBP_DEV_RESET));
686 END_DEBUG
687
688 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
689 switch (sdev->status) {
690 case SBP_DEV_RESET:
691 /* new or revived target */
692 if (auto_login)
693 sbp_login(sdev);
694 break;
695 case SBP_DEV_TOATTACH:
696 case SBP_DEV_PROBE:
697 case SBP_DEV_ATTACHED:
698 case SBP_DEV_RETRY:
699 default:
700 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
701 break;
702 }
703 } else {
704 switch (sdev->status) {
705 case SBP_DEV_ATTACHED:
706 SBP_DEBUG(0)
707 /* the device has gone */
708 sbp_show_sdev_info(sdev, 2);
709 kprintf("lost target\n");
710 END_DEBUG
711 #if 0
712 if (sdev->path) {
713 xpt_freeze_devq(sdev->path, 1);
714 sdev->freeze ++;
715 }
716 sdev->status = SBP_DEV_RETRY;
717 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
718 #endif
719 sbp_cam_detach_target(sdev->target);
720 sdev->status = SBP_DEV_RESET;
721 break;
722 case SBP_DEV_PROBE:
723 case SBP_DEV_TOATTACH:
724 sdev->status = SBP_DEV_RESET;
725 break;
726 case SBP_DEV_RETRY:
727 case SBP_DEV_RESET:
728 case SBP_DEV_DEAD:
729 break;
730 }
731 }
732 }
733 }
734
735 static void
sbp_post_busreset(void * arg)736 sbp_post_busreset(void *arg)
737 {
738 struct sbp_softc *sbp;
739
740 sbp = (struct sbp_softc *)arg;
741 SBP_DEBUG(0)
742 kprintf("sbp_post_busreset\n");
743 END_DEBUG
744 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
745 xpt_freeze_simq(sbp->sim, /*count*/1);
746 sbp->sim->flags |= SIMQ_FREEZED;
747 }
748 microtime(&sbp->last_busreset);
749 }
750
751 static void
sbp_post_explore(void * arg)752 sbp_post_explore(void *arg)
753 {
754 struct sbp_softc *sbp = (struct sbp_softc *)arg;
755 struct sbp_target *target;
756 struct fw_device *fwdev;
757 int i, alive;
758
759 SBP_DEBUG(0)
760 kprintf("sbp_post_explore\n");
761 END_DEBUG
762 #if 0
763 if (sbp_cold > 0)
764 sbp_cold --;
765 #endif
766
767 #if 0
768 /*
769 * XXX don't let CAM the bus rest.
770 * CAM tries to do something with freezed (DEV_RETRY) devices.
771 */
772 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
773 #endif
774
775 /* Gabage Collection */
776 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
777 target = &sbp->targets[i];
778 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
779 if (target->fwdev == NULL || target->fwdev == fwdev)
780 break;
781 if (fwdev == NULL) {
782 /* device has removed in lower driver */
783 sbp_cam_detach_target(target);
784 sbp_free_target(target);
785 }
786 }
787 /* traverse device list */
788 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
789 SBP_DEBUG(0)
790 kprintf("sbp_post_explore: EUI:%08x%08x ",
791 fwdev->eui.hi, fwdev->eui.lo);
792 if (fwdev->status != FWDEVATTACHED)
793 kprintf("not attached, state=%d.\n", fwdev->status);
794 else
795 kprintf("attached\n");
796 END_DEBUG
797 alive = SBP_FWDEV_ALIVE(fwdev);
798 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
799 target = &sbp->targets[i];
800 if(target->fwdev == fwdev ) {
801 /* known target */
802 break;
803 }
804 }
805 if(i == SBP_NUM_TARGETS){
806 if (alive) {
807 /* new target */
808 target = sbp_alloc_target(sbp, fwdev);
809 if (target == NULL)
810 continue;
811 } else {
812 continue;
813 }
814 }
815 sbp_probe_target((void *)target);
816 if (target->num_lun == 0)
817 sbp_free_target(target);
818 }
819 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
820 sbp->sim->flags &= ~SIMQ_FREEZED;
821 }
822
823 #if NEED_RESPONSE
824 static void
sbp_loginres_callback(struct fw_xfer * xfer)825 sbp_loginres_callback(struct fw_xfer *xfer){
826 struct sbp_dev *sdev;
827 sdev = (struct sbp_dev *)xfer->sc;
828 SBP_DEBUG(1)
829 sbp_show_sdev_info(sdev, 2);
830 kprintf("sbp_loginres_callback\n");
831 END_DEBUG
832 /* recycle */
833 crit_enter();
834 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
835 crit_exit();
836 return;
837 }
838 #endif
839
840 static __inline void
sbp_xfer_free(struct fw_xfer * xfer)841 sbp_xfer_free(struct fw_xfer *xfer)
842 {
843 struct sbp_dev *sdev;
844
845 sdev = (struct sbp_dev *)xfer->sc;
846 fw_xfer_unload(xfer);
847 crit_enter();
848 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
849 crit_exit();
850 }
851
852 static void
sbp_reset_start_callback(struct fw_xfer * xfer)853 sbp_reset_start_callback(struct fw_xfer *xfer)
854 {
855 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
856 struct sbp_target *target = sdev->target;
857 int i;
858
859 if (xfer->resp != 0) {
860 sbp_show_sdev_info(sdev, 2);
861 kprintf("sbp_reset_start failed: resp=%d\n", xfer->resp);
862 }
863
864 for (i = 0; i < target->num_lun; i++) {
865 tsdev = target->luns[i];
866 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
867 sbp_login(tsdev);
868 }
869 }
870
871 static void
sbp_reset_start(struct sbp_dev * sdev)872 sbp_reset_start(struct sbp_dev *sdev)
873 {
874 struct fw_xfer *xfer;
875 struct fw_pkt *fp;
876
877 SBP_DEBUG(0)
878 sbp_show_sdev_info(sdev, 2);
879 kprintf("sbp_reset_start\n");
880 END_DEBUG
881
882 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
883 xfer->act.hand = sbp_reset_start_callback;
884 fp = &xfer->send.hdr;
885 fp->mode.wreqq.dest_hi = 0xffff;
886 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
887 fp->mode.wreqq.data = htonl(0xf);
888 fw_asyreq(xfer->fc, -1, xfer);
889 }
890
891 static void
sbp_mgm_callback(struct fw_xfer * xfer)892 sbp_mgm_callback(struct fw_xfer *xfer)
893 {
894 struct sbp_dev *sdev;
895 #if 0
896 int resp;
897 #endif
898
899 sdev = (struct sbp_dev *)xfer->sc;
900
901 SBP_DEBUG(1)
902 sbp_show_sdev_info(sdev, 2);
903 kprintf("sbp_mgm_callback\n");
904 END_DEBUG
905 #if 0
906 resp = xfer->resp;
907 #endif
908 sbp_xfer_free(xfer);
909 #if 0
910 if (resp != 0) {
911 sbp_show_sdev_info(sdev, 2);
912 kprintf("management ORB failed(%d) ... RESET_START\n", resp);
913 sbp_reset_start(sdev);
914 }
915 #endif
916 return;
917 }
918
919 static struct sbp_dev *
sbp_next_dev(struct sbp_target * target,int lun)920 sbp_next_dev(struct sbp_target *target, int lun)
921 {
922 struct sbp_dev **sdevp;
923 int i;
924
925 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
926 i++, sdevp++)
927 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
928 return(*sdevp);
929 return(NULL);
930 }
931
932 #define SCAN_PRI 1
933 static void
sbp_cam_scan_lun(struct cam_periph * periph,union ccb * ccb)934 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
935 {
936 struct sbp_target *target;
937 struct sbp_dev *sdev;
938
939 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
940 target = sdev->target;
941 SBP_DEBUG(0)
942 sbp_show_sdev_info(sdev, 2);
943 kprintf("sbp_cam_scan_lun\n");
944 END_DEBUG
945 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
946 sdev->status = SBP_DEV_ATTACHED;
947 } else {
948 sbp_show_sdev_info(sdev, 2);
949 kprintf("scan failed\n");
950 }
951 sdev = sbp_next_dev(target, sdev->lun_id + 1);
952 if (sdev == NULL) {
953 xpt_free_ccb(&ccb->ccb_h);
954 return;
955 }
956 /* reuse ccb */
957 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
958 ccb->ccb_h.ccb_sdev_ptr = sdev;
959 xpt_action(ccb);
960 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
961 sdev->freeze = 1;
962 }
963
964 static void
sbp_cam_scan_target(void * arg)965 sbp_cam_scan_target(void *arg)
966 {
967 struct sbp_target *target = (struct sbp_target *)arg;
968 struct sbp_dev *sdev;
969 union ccb *ccb;
970
971 sdev = sbp_next_dev(target, 0);
972 if (sdev == NULL) {
973 kprintf("sbp_cam_scan_target: nothing to do for target%d\n",
974 target->target_id);
975 return;
976 }
977 SBP_DEBUG(0)
978 sbp_show_sdev_info(sdev, 2);
979 kprintf("sbp_cam_scan_target\n");
980 END_DEBUG
981 ccb = xpt_alloc_ccb();
982 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
983 ccb->ccb_h.func_code = XPT_SCAN_LUN;
984 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
985 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
986 ccb->crcn.flags = CAM_FLAG_NONE;
987 ccb->ccb_h.ccb_sdev_ptr = sdev;
988
989 /* The scan is in progress now. */
990 xpt_action(ccb);
991 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
992 sdev->freeze = 1;
993 }
994
995 static __inline void
sbp_scan_dev(struct sbp_dev * sdev)996 sbp_scan_dev(struct sbp_dev *sdev)
997 {
998 sdev->status = SBP_DEV_PROBE;
999 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1000 sbp_cam_scan_target, (void *)sdev->target);
1001 }
1002
1003 static void
sbp_do_attach(struct fw_xfer * xfer)1004 sbp_do_attach(struct fw_xfer *xfer)
1005 {
1006 struct sbp_dev *sdev;
1007 struct sbp_target *target;
1008
1009 sdev = (struct sbp_dev *)xfer->sc;
1010 target = sdev->target;
1011 SBP_DEBUG(0)
1012 sbp_show_sdev_info(sdev, 2);
1013 kprintf("sbp_do_attach\n");
1014 END_DEBUG
1015 sbp_xfer_free(xfer);
1016
1017 if (sdev->path == NULL)
1018 xpt_create_path(&sdev->path, xpt_periph,
1019 cam_sim_path(target->sbp->sim),
1020 target->target_id, sdev->lun_id);
1021
1022 #if 0
1023 /*
1024 * Let CAM scan the bus if we are in the boot process.
1025 * XXX xpt_scan_bus cannot detect LUN larger than 0
1026 * if LUN 0 doesn't exists.
1027 */
1028 if (sbp_cold > 0) {
1029 sdev->status = SBP_DEV_ATTACHED;
1030 return;
1031 }
1032 #endif
1033
1034 sbp_scan_dev(sdev);
1035 return;
1036 }
1037
1038 static void
sbp_agent_reset_callback(struct fw_xfer * xfer)1039 sbp_agent_reset_callback(struct fw_xfer *xfer)
1040 {
1041 struct sbp_dev *sdev;
1042
1043 sdev = (struct sbp_dev *)xfer->sc;
1044 SBP_DEBUG(1)
1045 sbp_show_sdev_info(sdev, 2);
1046 kprintf("%s\n", __func__);
1047 END_DEBUG
1048 if (xfer->resp != 0) {
1049 sbp_show_sdev_info(sdev, 2);
1050 kprintf("%s: resp=%d\n", __func__, xfer->resp);
1051 }
1052
1053 sbp_xfer_free(xfer);
1054 if (sdev->path) {
1055 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1056 sdev->freeze = 0;
1057 }
1058 }
1059
1060 static void
sbp_agent_reset(struct sbp_dev * sdev)1061 sbp_agent_reset(struct sbp_dev *sdev)
1062 {
1063 struct fw_xfer *xfer;
1064 struct fw_pkt *fp;
1065
1066 SBP_DEBUG(0)
1067 sbp_show_sdev_info(sdev, 2);
1068 kprintf("sbp_agent_reset\n");
1069 END_DEBUG
1070 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1071 if (xfer == NULL)
1072 return;
1073 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1074 xfer->act.hand = sbp_agent_reset_callback;
1075 else
1076 xfer->act.hand = sbp_do_attach;
1077 fp = &xfer->send.hdr;
1078 fp->mode.wreqq.data = htonl(0xf);
1079 fw_asyreq(xfer->fc, -1, xfer);
1080 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1081 }
1082
1083 static void
sbp_busy_timeout_callback(struct fw_xfer * xfer)1084 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1085 {
1086 struct sbp_dev *sdev;
1087
1088 sdev = (struct sbp_dev *)xfer->sc;
1089 SBP_DEBUG(1)
1090 sbp_show_sdev_info(sdev, 2);
1091 kprintf("sbp_busy_timeout_callback\n");
1092 END_DEBUG
1093 sbp_xfer_free(xfer);
1094 sbp_agent_reset(sdev);
1095 }
1096
1097 static void
sbp_busy_timeout(struct sbp_dev * sdev)1098 sbp_busy_timeout(struct sbp_dev *sdev)
1099 {
1100 struct fw_pkt *fp;
1101 struct fw_xfer *xfer;
1102 SBP_DEBUG(0)
1103 sbp_show_sdev_info(sdev, 2);
1104 kprintf("sbp_busy_timeout\n");
1105 END_DEBUG
1106 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1107
1108 xfer->act.hand = sbp_busy_timeout_callback;
1109 fp = &xfer->send.hdr;
1110 fp->mode.wreqq.dest_hi = 0xffff;
1111 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1112 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1113 fw_asyreq(xfer->fc, -1, xfer);
1114 }
1115
1116 static void
sbp_orb_pointer_callback(struct fw_xfer * xfer)1117 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1118 {
1119 struct sbp_dev *sdev;
1120 sdev = (struct sbp_dev *)xfer->sc;
1121
1122 SBP_DEBUG(1)
1123 sbp_show_sdev_info(sdev, 2);
1124 kprintf("%s\n", __func__);
1125 END_DEBUG
1126 if (xfer->resp != 0) {
1127 /* XXX */
1128 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1129 }
1130 sbp_xfer_free(xfer);
1131 sdev->flags &= ~ORB_POINTER_ACTIVE;
1132
1133 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1134 struct sbp_ocb *ocb;
1135
1136 sdev->flags &= ~ORB_POINTER_NEED;
1137 ocb = STAILQ_FIRST(&sdev->ocbs);
1138 if (ocb != NULL)
1139 sbp_orb_pointer(sdev, ocb);
1140 }
1141 return;
1142 }
1143
1144 static void
sbp_orb_pointer(struct sbp_dev * sdev,struct sbp_ocb * ocb)1145 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1146 {
1147 struct fw_xfer *xfer;
1148 struct fw_pkt *fp;
1149 SBP_DEBUG(1)
1150 sbp_show_sdev_info(sdev, 2);
1151 kprintf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr);
1152 END_DEBUG
1153
1154 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1155 SBP_DEBUG(0)
1156 kprintf("%s: orb pointer active\n", __func__);
1157 END_DEBUG
1158 sdev->flags |= ORB_POINTER_NEED;
1159 return;
1160 }
1161
1162 sdev->flags |= ORB_POINTER_ACTIVE;
1163 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1164 if (xfer == NULL)
1165 return;
1166 xfer->act.hand = sbp_orb_pointer_callback;
1167
1168 fp = &xfer->send.hdr;
1169 fp->mode.wreqb.len = 8;
1170 fp->mode.wreqb.extcode = 0;
1171 xfer->send.payload[0] =
1172 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1173 xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr);
1174
1175 if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1176 sbp_xfer_free(xfer);
1177 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1178 xpt_done(ocb->ccb);
1179 }
1180 }
1181
1182 #if 0
1183 static void
1184 sbp_cmd_callback(struct fw_xfer *xfer)
1185 {
1186 SBP_DEBUG(1)
1187 struct sbp_dev *sdev;
1188 sdev = (struct sbp_dev *)xfer->sc;
1189 sbp_show_sdev_info(sdev, 2);
1190 kprintf("sbp_cmd_callback\n");
1191 END_DEBUG
1192 if (xfer->resp != 0) {
1193 /* XXX */
1194 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1195 }
1196 sbp_xfer_free(xfer);
1197 return;
1198 }
1199
1200 static void
1201 sbp_doorbell(struct sbp_dev *sdev)
1202 {
1203 struct fw_xfer *xfer;
1204 struct fw_pkt *fp;
1205 SBP_DEBUG(1)
1206 sbp_show_sdev_info(sdev, 2);
1207 kprintf("sbp_doorbell\n");
1208 END_DEBUG
1209
1210 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1211 if (xfer == NULL)
1212 return;
1213 xfer->act.hand = sbp_cmd_callback;
1214 fp = (struct fw_pkt *)xfer->send.buf;
1215 fp->mode.wreqq.data = htonl(0xf);
1216 fw_asyreq(xfer->fc, -1, xfer);
1217 }
1218 #endif
1219
1220 static struct fw_xfer *
sbp_write_cmd(struct sbp_dev * sdev,int tcode,int offset)1221 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1222 {
1223 struct fw_xfer *xfer;
1224 struct fw_pkt *fp;
1225 struct sbp_target *target;
1226 int new = 0;
1227
1228 target = sdev->target;
1229 crit_enter();
1230 xfer = STAILQ_FIRST(&target->xferlist);
1231 if (xfer == NULL) {
1232 if (target->n_xfer > 5 /* XXX */) {
1233 kprintf("sbp: no more xfer for this target\n");
1234 crit_exit();
1235 return(NULL);
1236 }
1237 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1238 if(xfer == NULL){
1239 kprintf("sbp: fw_xfer_alloc_buf failed\n");
1240 crit_exit();
1241 return NULL;
1242 }
1243 target->n_xfer ++;
1244 if (debug)
1245 kprintf("sbp: alloc %d xfer\n", target->n_xfer);
1246 new = 1;
1247 } else {
1248 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1249 }
1250 crit_exit();
1251
1252 microtime(&xfer->tv);
1253
1254 if (new) {
1255 xfer->recv.pay_len = 0;
1256 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1257 xfer->fc = sdev->target->sbp->fd.fc;
1258 xfer->retry_req = fw_asybusy;
1259 }
1260
1261 if (tcode == FWTCODE_WREQB)
1262 xfer->send.pay_len = 8;
1263 else
1264 xfer->send.pay_len = 0;
1265
1266 xfer->sc = (caddr_t)sdev;
1267 fp = &xfer->send.hdr;
1268 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1269 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1270 fp->mode.wreqq.tlrt = 0;
1271 fp->mode.wreqq.tcode = tcode;
1272 fp->mode.wreqq.pri = 0;
1273 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1274
1275 return xfer;
1276
1277 }
1278
1279 static void
sbp_mgm_orb(struct sbp_dev * sdev,int func,struct sbp_ocb * aocb)1280 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1281 {
1282 struct fw_xfer *xfer;
1283 struct fw_pkt *fp;
1284 struct sbp_ocb *ocb;
1285 struct sbp_target *target;
1286 int nid;
1287
1288 target = sdev->target;
1289 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1290
1291 crit_enter();
1292 if (func == ORB_FUN_RUNQUEUE) {
1293 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1294 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1295 crit_exit();
1296 return;
1297 }
1298 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1299 goto start;
1300 }
1301 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1302 crit_exit();
1303 /* XXX */
1304 return;
1305 }
1306 ocb->flags = OCB_ACT_MGM;
1307 ocb->sdev = sdev;
1308
1309 bzero((void *)ocb->orb, sizeof(ocb->orb));
1310 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1311 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1312
1313 SBP_DEBUG(0)
1314 sbp_show_sdev_info(sdev, 2);
1315 kprintf("%s\n", orb_fun_name[(func>>16)&0xf]);
1316 END_DEBUG
1317 switch (func) {
1318 case ORB_FUN_LGI:
1319 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1320 ocb->orb[2] = htonl(nid << 16);
1321 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1322 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1323 if (ex_login)
1324 ocb->orb[4] |= htonl(ORB_EXV);
1325 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1326 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1327 break;
1328 case ORB_FUN_ATA:
1329 ocb->orb[0] = htonl((0 << 16) | 0);
1330 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1331 /* fall through */
1332 case ORB_FUN_RCN:
1333 case ORB_FUN_LGO:
1334 case ORB_FUN_LUR:
1335 case ORB_FUN_RST:
1336 case ORB_FUN_ATS:
1337 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1338 break;
1339 }
1340
1341 if (target->mgm_ocb_cur != NULL) {
1342 /* there is a standing ORB */
1343 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1344 crit_exit();
1345 return;
1346 }
1347 start:
1348 target->mgm_ocb_cur = ocb;
1349 crit_exit();
1350
1351 callout_reset(&target->mgm_ocb_timeout, 5*hz,
1352 sbp_mgm_timeout, (caddr_t)ocb);
1353 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1354 if(xfer == NULL){
1355 return;
1356 }
1357 xfer->act.hand = sbp_mgm_callback;
1358
1359 fp = &xfer->send.hdr;
1360 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1361 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1362 fp->mode.wreqb.len = 8;
1363 fp->mode.wreqb.extcode = 0;
1364 xfer->send.payload[0] = htonl(nid << 16);
1365 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1366 SBP_DEBUG(0)
1367 sbp_show_sdev_info(sdev, 2);
1368 kprintf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr);
1369 END_DEBUG
1370
1371 fw_asyreq(xfer->fc, -1, xfer);
1372 }
1373
1374 static void
sbp_print_scsi_cmd(struct sbp_ocb * ocb)1375 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1376 {
1377 struct ccb_scsiio *csio;
1378
1379 csio = &ocb->ccb->csio;
1380 kprintf("%s:%d:%d XPT_SCSI_IO: "
1381 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1382 ", flags: 0x%02x, "
1383 "%db cmd/%db data/%db sense\n",
1384 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1385 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1386 csio->cdb_io.cdb_bytes[0],
1387 csio->cdb_io.cdb_bytes[1],
1388 csio->cdb_io.cdb_bytes[2],
1389 csio->cdb_io.cdb_bytes[3],
1390 csio->cdb_io.cdb_bytes[4],
1391 csio->cdb_io.cdb_bytes[5],
1392 csio->cdb_io.cdb_bytes[6],
1393 csio->cdb_io.cdb_bytes[7],
1394 csio->cdb_io.cdb_bytes[8],
1395 csio->cdb_io.cdb_bytes[9],
1396 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1397 csio->cdb_len, csio->dxfer_len,
1398 csio->sense_len);
1399 }
1400
1401 static void
sbp_scsi_status(struct sbp_status * sbp_status,struct sbp_ocb * ocb)1402 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1403 {
1404 struct sbp_cmd_status *sbp_cmd_status;
1405 struct scsi_sense_data *sense;
1406
1407 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1408 sense = &ocb->ccb->csio.sense_data;
1409
1410 SBP_DEBUG(0)
1411 sbp_print_scsi_cmd(ocb);
1412 /* XXX need decode status */
1413 sbp_show_sdev_info(ocb->sdev, 2);
1414 kprintf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1415 sbp_cmd_status->status,
1416 sbp_cmd_status->sfmt,
1417 sbp_cmd_status->valid,
1418 sbp_cmd_status->s_key,
1419 sbp_cmd_status->s_code,
1420 sbp_cmd_status->s_qlfr,
1421 sbp_status->len
1422 );
1423 END_DEBUG
1424
1425 switch (sbp_cmd_status->status) {
1426 case SCSI_STATUS_CHECK_COND:
1427 case SCSI_STATUS_BUSY:
1428 case SCSI_STATUS_CMD_TERMINATED:
1429 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1430 sense->error_code = SSD_CURRENT_ERROR;
1431 }else{
1432 sense->error_code = SSD_DEFERRED_ERROR;
1433 }
1434 if(sbp_cmd_status->valid)
1435 sense->error_code |= SSD_ERRCODE_VALID;
1436 sense->flags = sbp_cmd_status->s_key;
1437 if(sbp_cmd_status->mark)
1438 sense->flags |= SSD_FILEMARK;
1439 if(sbp_cmd_status->eom)
1440 sense->flags |= SSD_EOM;
1441 if(sbp_cmd_status->ill_len)
1442 sense->flags |= SSD_ILI;
1443
1444 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1445
1446 if (sbp_status->len <= 1)
1447 /* XXX not scsi status. shouldn't be happened */
1448 sense->extra_len = 0;
1449 else if (sbp_status->len <= 4)
1450 /* add_sense_code(_qual), info, cmd_spec_info */
1451 sense->extra_len = 6;
1452 else
1453 /* fru, sense_key_spec */
1454 sense->extra_len = 10;
1455
1456 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1457
1458 sense->add_sense_code = sbp_cmd_status->s_code;
1459 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1460 sense->fru = sbp_cmd_status->fru;
1461
1462 bcopy(&sbp_cmd_status->s_keydep[0],
1463 &sense->sense_key_spec[0], 3);
1464
1465 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1466 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1467 | CAM_AUTOSNS_VALID;
1468 /*
1469 {
1470 u_int8_t j, *tmp;
1471 tmp = sense;
1472 for( j = 0 ; j < 32 ; j+=8){
1473 kprintf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1474 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1475 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1476 }
1477
1478 }
1479 */
1480 break;
1481 default:
1482 sbp_show_sdev_info(ocb->sdev, 2);
1483 kprintf("sbp_scsi_status: unknown scsi status 0x%x\n",
1484 sbp_cmd_status->status);
1485 }
1486 }
1487
1488 static void
sbp_fix_inq_data(struct sbp_ocb * ocb)1489 sbp_fix_inq_data(struct sbp_ocb *ocb)
1490 {
1491 union ccb *ccb;
1492 struct sbp_dev *sdev;
1493 struct scsi_inquiry_data *inq;
1494
1495 ccb = ocb->ccb;
1496 sdev = ocb->sdev;
1497
1498 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1499 return;
1500 SBP_DEBUG(1)
1501 sbp_show_sdev_info(sdev, 2);
1502 kprintf("sbp_fix_inq_data\n");
1503 END_DEBUG
1504 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1505 switch (SID_TYPE(inq)) {
1506 case T_DIRECT:
1507 #if 0
1508 /*
1509 * XXX Convert Direct Access device to RBC.
1510 * I've never seen FireWire DA devices which support READ_6.
1511 */
1512 if (SID_TYPE(inq) == T_DIRECT)
1513 inq->device |= T_RBC; /* T_DIRECT == 0 */
1514 #endif
1515 /* fall through */
1516 case T_RBC:
1517 /* enable tagged queuing */
1518 if (sbp_tags)
1519 inq->flags |= SID_CmdQue;
1520 else
1521 inq->flags &= ~SID_CmdQue;
1522 /*
1523 * Override vendor/product/revision information.
1524 * Some devices sometimes return strange strings.
1525 */
1526 #if 1
1527 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1528 bcopy(sdev->product, inq->product, sizeof(inq->product));
1529 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1530 #endif
1531 break;
1532 }
1533 }
1534
1535 static void
sbp_recv1(struct fw_xfer * xfer)1536 sbp_recv1(struct fw_xfer *xfer)
1537 {
1538 struct fw_pkt *rfp;
1539 #if NEED_RESPONSE
1540 struct fw_pkt *sfp;
1541 #endif
1542 struct sbp_softc *sbp;
1543 struct sbp_dev *sdev;
1544 struct sbp_ocb *ocb;
1545 struct sbp_login_res *login_res = NULL;
1546 struct sbp_status *sbp_status;
1547 struct sbp_target *target;
1548 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1549 u_int32_t addr;
1550 /*
1551 u_int32_t *ld;
1552 ld = xfer->recv.buf;
1553 kprintf("sbp %x %d %d %08x %08x %08x %08x\n",
1554 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1555 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1556 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1557 */
1558 sbp = (struct sbp_softc *)xfer->sc;
1559 if (xfer->resp != 0){
1560 kprintf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1561 goto done0;
1562 }
1563 if (xfer->recv.payload == NULL){
1564 kprintf("sbp_recv: xfer->recv.payload == NULL\n");
1565 goto done0;
1566 }
1567 rfp = &xfer->recv.hdr;
1568 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1569 kprintf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1570 goto done0;
1571 }
1572 sbp_status = (struct sbp_status *)xfer->recv.payload;
1573 addr = rfp->mode.wreqb.dest_lo;
1574 SBP_DEBUG(2)
1575 kprintf("received address 0x%x\n", addr);
1576 END_DEBUG
1577 t = SBP_ADDR2TRG(addr);
1578 if (t >= SBP_NUM_TARGETS) {
1579 device_printf(sbp->fd.dev,
1580 "sbp_recv1: invalid target %d\n", t);
1581 goto done0;
1582 }
1583 target = &sbp->targets[t];
1584 l = SBP_ADDR2LUN(addr);
1585 if (l >= target->num_lun || target->luns[l] == NULL) {
1586 device_printf(sbp->fd.dev,
1587 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1588 goto done0;
1589 }
1590 sdev = target->luns[l];
1591
1592 ocb = NULL;
1593 switch (sbp_status->src) {
1594 case 0:
1595 case 1:
1596 /* check mgm_ocb_cur first */
1597 ocb = target->mgm_ocb_cur;
1598 if (ocb != NULL) {
1599 if (OCB_MATCH(ocb, sbp_status)) {
1600 callout_stop(&target->mgm_ocb_timeout);
1601 target->mgm_ocb_cur = NULL;
1602 break;
1603 }
1604 }
1605 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1606 if (ocb == NULL) {
1607 sbp_show_sdev_info(sdev, 2);
1608 kprintf("No ocb(%x) on the queue\n",
1609 ntohl(sbp_status->orb_lo));
1610 }
1611 break;
1612 case 2:
1613 /* unsolicit */
1614 sbp_show_sdev_info(sdev, 2);
1615 kprintf("unsolicit status received\n");
1616 break;
1617 default:
1618 sbp_show_sdev_info(sdev, 2);
1619 kprintf("unknown sbp_status->src\n");
1620 }
1621
1622 status_valid0 = (sbp_status->src < 2
1623 && sbp_status->resp == ORB_RES_CMPL
1624 && sbp_status->dead == 0);
1625 status_valid = (status_valid0 && sbp_status->status == 0);
1626
1627 if (!status_valid0 || debug > 2){
1628 int status;
1629 SBP_DEBUG(0)
1630 sbp_show_sdev_info(sdev, 2);
1631 kprintf("ORB status src:%x resp:%x dead:%x"
1632 " len:%x stat:%x orb:%x%08x\n",
1633 sbp_status->src, sbp_status->resp, sbp_status->dead,
1634 sbp_status->len, sbp_status->status,
1635 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1636 END_DEBUG
1637 sbp_show_sdev_info(sdev, 2);
1638 status = sbp_status->status;
1639 switch(sbp_status->resp) {
1640 case 0:
1641 if (status > MAX_ORB_STATUS0)
1642 kprintf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1643 else
1644 kprintf("%s\n", orb_status0[status]);
1645 break;
1646 case 1:
1647 kprintf("Obj: %s, Error: %s\n",
1648 orb_status1_object[(status>>6) & 3],
1649 orb_status1_serial_bus_error[status & 0xf]);
1650 break;
1651 case 2:
1652 kprintf("Illegal request\n");
1653 break;
1654 case 3:
1655 kprintf("Vendor dependent\n");
1656 break;
1657 default:
1658 kprintf("unknown respose code %d\n", sbp_status->resp);
1659 }
1660 }
1661
1662 /* we have to reset the fetch agent if it's dead */
1663 if (sbp_status->dead) {
1664 if (sdev->path) {
1665 xpt_freeze_devq(sdev->path, 1);
1666 sdev->freeze ++;
1667 }
1668 reset_agent = 1;
1669 }
1670
1671 if (ocb == NULL)
1672 goto done;
1673
1674 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1675 case ORB_FMT_NOP:
1676 break;
1677 case ORB_FMT_VED:
1678 break;
1679 case ORB_FMT_STD:
1680 switch(ocb->flags) {
1681 case OCB_ACT_MGM:
1682 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1683 reset_agent = 0;
1684 switch(orb_fun) {
1685 case ORB_FUN_LGI:
1686 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1687 login_res = sdev->login;
1688 login_res->len = ntohs(login_res->len);
1689 login_res->id = ntohs(login_res->id);
1690 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1691 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1692 if (status_valid) {
1693 SBP_DEBUG(0)
1694 sbp_show_sdev_info(sdev, 2);
1695 kprintf("login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo, ntohs(login_res->recon_hold));
1696 END_DEBUG
1697 sbp_busy_timeout(sdev);
1698 } else {
1699 /* forgot logout? */
1700 sbp_show_sdev_info(sdev, 2);
1701 kprintf("login failed\n");
1702 sdev->status = SBP_DEV_RESET;
1703 }
1704 break;
1705 case ORB_FUN_RCN:
1706 login_res = sdev->login;
1707 if (status_valid) {
1708 SBP_DEBUG(0)
1709 sbp_show_sdev_info(sdev, 2);
1710 kprintf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
1711 END_DEBUG
1712 #if 1
1713 if (sdev->status == SBP_DEV_ATTACHED)
1714 sbp_scan_dev(sdev);
1715 else
1716 sbp_agent_reset(sdev);
1717 #else
1718 sdev->status = SBP_DEV_ATTACHED;
1719 sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
1720 #endif
1721 } else {
1722 /* reconnection hold time exceed? */
1723 SBP_DEBUG(0)
1724 sbp_show_sdev_info(sdev, 2);
1725 kprintf("reconnect failed\n");
1726 END_DEBUG
1727 sbp_login(sdev);
1728 }
1729 break;
1730 case ORB_FUN_LGO:
1731 sdev->status = SBP_DEV_RESET;
1732 break;
1733 case ORB_FUN_RST:
1734 sbp_busy_timeout(sdev);
1735 break;
1736 case ORB_FUN_LUR:
1737 case ORB_FUN_ATA:
1738 case ORB_FUN_ATS:
1739 sbp_agent_reset(sdev);
1740 break;
1741 default:
1742 sbp_show_sdev_info(sdev, 2);
1743 kprintf("unknown function %d\n", orb_fun);
1744 break;
1745 }
1746 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1747 break;
1748 case OCB_ACT_CMD:
1749 sdev->timeout = 0;
1750 if(ocb->ccb != NULL){
1751 union ccb *ccb;
1752 /*
1753 u_int32_t *ld;
1754 ld = ocb->ccb->csio.data_ptr;
1755 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
1756 kprintf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
1757 else
1758 kprintf("ptr NULL\n");
1759 kprintf("len %d\n", sbp_status->len);
1760 */
1761 ccb = ocb->ccb;
1762 if(sbp_status->len > 1){
1763 sbp_scsi_status(sbp_status, ocb);
1764 }else{
1765 if(sbp_status->resp != ORB_RES_CMPL){
1766 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1767 }else{
1768 ccb->ccb_h.status = CAM_REQ_CMP;
1769 }
1770 }
1771 /* fix up inq data */
1772 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1773 sbp_fix_inq_data(ocb);
1774 xpt_done(ccb);
1775 }
1776 break;
1777 default:
1778 break;
1779 }
1780 }
1781
1782 sbp_free_ocb(sdev, ocb);
1783 done:
1784 if (reset_agent)
1785 sbp_agent_reset(sdev);
1786
1787 done0:
1788 xfer->recv.pay_len = SBP_RECV_LEN;
1789 /* The received packet is usually small enough to be stored within
1790 * the buffer. In that case, the controller return ack_complete and
1791 * no respose is necessary.
1792 *
1793 * XXX fwohci.c and firewire.c should inform event_code such as
1794 * ack_complete or ack_pending to upper driver.
1795 */
1796 #if NEED_RESPONSE
1797 xfer->send.off = 0;
1798 sfp = (struct fw_pkt *)xfer->send.buf;
1799 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1800 xfer->dst = sfp->mode.wres.dst;
1801 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1802 xfer->act.hand = sbp_loginres_callback;
1803 xfer->retry_req = fw_asybusy;
1804
1805 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1806 sfp->mode.wres.tcode = FWTCODE_WRES;
1807 sfp->mode.wres.rtcode = 0;
1808 sfp->mode.wres.pri = 0;
1809
1810 fw_asyreq(xfer->fc, -1, xfer);
1811 #else
1812 /* recycle */
1813 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1814 #endif
1815
1816 return;
1817
1818 }
1819
1820 static void
sbp_recv(struct fw_xfer * xfer)1821 sbp_recv(struct fw_xfer *xfer)
1822 {
1823 crit_enter();
1824 sbp_recv1(xfer);
1825 crit_exit();
1826 }
1827 /*
1828 * sbp_attach()
1829 */
1830 static int
sbp_attach(device_t dev)1831 sbp_attach(device_t dev)
1832 {
1833 struct sbp_softc *sbp;
1834 struct cam_devq *devq;
1835 struct fw_xfer *xfer;
1836 int i, error;
1837
1838 SBP_DEBUG(0)
1839 kprintf("sbp_attach (cold=%d)\n", cold);
1840 END_DEBUG
1841
1842 #if 0
1843 if (cold)
1844 sbp_cold ++;
1845 #endif
1846 sbp = ((struct sbp_softc *)device_get_softc(dev));
1847 bzero(sbp, sizeof(struct sbp_softc));
1848 sbp->fd.dev = dev;
1849 sbp->fd.fc = device_get_ivars(dev);
1850
1851 if (max_speed < 0)
1852 max_speed = sbp->fd.fc->speed;
1853
1854 error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat,
1855 /* XXX shoud be 4 for sane backend? */
1856 /*alignment*/1,
1857 /*boundary*/0,
1858 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1859 /*highaddr*/BUS_SPACE_MAXADDR,
1860 #if defined(__FreeBSD__)
1861 /*filter*/NULL, /*filterarg*/NULL,
1862 #endif
1863 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1864 /*maxsegsz*/SBP_SEG_MAX,
1865 /*flags*/BUS_DMA_ALLOCNOW,
1866 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1867 /*lockfunc*/busdma_lock_mutex,
1868 /*lockarg*/&Giant,
1869 #endif
1870 &sbp->dmat);
1871 if (error != 0) {
1872 kprintf("sbp_attach: Could not allocate DMA tag "
1873 "- error %d\n", error);
1874 return (ENOMEM);
1875 }
1876
1877 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1878 if (devq == NULL)
1879 return (ENXIO);
1880
1881 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
1882 sbp->targets[i].fwdev = NULL;
1883 sbp->targets[i].luns = NULL;
1884 }
1885
1886 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
1887 device_get_unit(dev),
1888 &sim_mplock,
1889 /*untagged*/ 1,
1890 /*tagged*/ SBP_QUEUE_LEN - 1,
1891 devq);
1892 cam_simq_release(devq);
1893 if (sbp->sim == NULL)
1894 return (ENXIO);
1895
1896 if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS)
1897 goto fail;
1898
1899 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
1900 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1901 xpt_bus_deregister(cam_sim_path(sbp->sim));
1902 goto fail;
1903 }
1904
1905 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
1906 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
1907 sbp->fwb.end = sbp->fwb.start + 0xffff;
1908 sbp->fwb.act_type = FWACT_XFER;
1909 /* pre-allocate xfer */
1910 STAILQ_INIT(&sbp->fwb.xferlist);
1911 for (i = 0; i < SBP_NUM_OCB/2; i ++) {
1912 xfer = fw_xfer_alloc_buf(M_SBP,
1913 /* send */0,
1914 /* recv */SBP_RECV_LEN);
1915 xfer->act.hand = sbp_recv;
1916 #if NEED_RESPONSE
1917 xfer->fc = sbp->fd.fc;
1918 #endif
1919 xfer->sc = (caddr_t)sbp;
1920 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1921 }
1922 fw_bindadd(sbp->fd.fc, &sbp->fwb);
1923
1924 sbp->fd.post_busreset = sbp_post_busreset;
1925 sbp->fd.post_explore = sbp_post_explore;
1926
1927 if (sbp->fd.fc->status != -1) {
1928 crit_enter();
1929 sbp_post_busreset((void *)sbp);
1930 sbp_post_explore((void *)sbp);
1931 crit_exit();
1932 }
1933 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
1934
1935 return (0);
1936 fail:
1937 cam_sim_free(sbp->sim);
1938 return (ENXIO);
1939 }
1940
1941 static int
sbp_logout_all(struct sbp_softc * sbp)1942 sbp_logout_all(struct sbp_softc *sbp)
1943 {
1944 struct sbp_target *target;
1945 struct sbp_dev *sdev;
1946 int i, j;
1947
1948 SBP_DEBUG(0)
1949 kprintf("sbp_logout_all\n");
1950 END_DEBUG
1951 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
1952 target = &sbp->targets[i];
1953 if (target->luns == NULL)
1954 continue;
1955 for (j = 0; j < target->num_lun; j++) {
1956 sdev = target->luns[j];
1957 if (sdev == NULL)
1958 continue;
1959 callout_stop(&sdev->login_callout);
1960 if (sdev->status >= SBP_DEV_TOATTACH &&
1961 sdev->status <= SBP_DEV_ATTACHED)
1962 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
1963 }
1964 }
1965
1966 return 0;
1967 }
1968
1969 static int
sbp_shutdown(device_t dev)1970 sbp_shutdown(device_t dev)
1971 {
1972 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
1973
1974 sbp_logout_all(sbp);
1975 return (0);
1976 }
1977
1978 static void
sbp_free_sdev(struct sbp_dev * sdev)1979 sbp_free_sdev(struct sbp_dev *sdev)
1980 {
1981 int i;
1982
1983 if (sdev == NULL)
1984 return;
1985 for (i = 0; i < SBP_QUEUE_LEN; i++)
1986 bus_dmamap_destroy(sdev->target->sbp->dmat,
1987 sdev->ocb[i].dmamap);
1988 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
1989 kfree(sdev, M_SBP);
1990 }
1991
1992 static void
sbp_free_target(struct sbp_target * target)1993 sbp_free_target(struct sbp_target *target)
1994 {
1995 struct fw_xfer *xfer, *next;
1996 int i;
1997
1998 if (target->luns == NULL)
1999 return;
2000 callout_stop(&target->mgm_ocb_timeout);
2001 for (i = 0; i < target->num_lun; i++)
2002 sbp_free_sdev(target->luns[i]);
2003
2004 for (xfer = STAILQ_FIRST(&target->xferlist);
2005 xfer != NULL; xfer = next) {
2006 next = STAILQ_NEXT(xfer, link);
2007 fw_xfer_free_buf(xfer);
2008 }
2009 STAILQ_INIT(&target->xferlist);
2010 kfree(target->luns, M_SBP);
2011 target->num_lun = 0;
2012 target->luns = NULL;
2013 target->fwdev = NULL;
2014 }
2015
2016 static int
sbp_detach(device_t dev)2017 sbp_detach(device_t dev)
2018 {
2019 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2020 struct firewire_comm *fc = sbp->fd.fc;
2021 struct fw_xfer *xfer, *next;
2022 int i;
2023
2024 SBP_DEBUG(0)
2025 kprintf("sbp_detach\n");
2026 END_DEBUG
2027
2028 for (i = 0; i < SBP_NUM_TARGETS; i ++)
2029 sbp_cam_detach_target(&sbp->targets[i]);
2030 xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2031 xpt_free_path(sbp->path);
2032 xpt_bus_deregister(cam_sim_path(sbp->sim));
2033 cam_sim_free(sbp->sim);
2034
2035 sbp_logout_all(sbp);
2036
2037 /* XXX wait for logout completion */
2038 tsleep(&i, FWPRI, "sbpdtc", hz/2);
2039
2040 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2041 sbp_free_target(&sbp->targets[i]);
2042
2043 for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
2044 xfer != NULL; xfer = next) {
2045 next = STAILQ_NEXT(xfer, link);
2046 fw_xfer_free_buf(xfer);
2047 }
2048 STAILQ_INIT(&sbp->fwb.xferlist);
2049 fw_bindremove(fc, &sbp->fwb);
2050
2051 bus_dma_tag_destroy(sbp->dmat);
2052
2053 return (0);
2054 }
2055
2056 static void
sbp_cam_detach_sdev(struct sbp_dev * sdev)2057 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2058 {
2059 if (sdev == NULL)
2060 return;
2061 if (sdev->status == SBP_DEV_DEAD)
2062 return;
2063 if (sdev->status == SBP_DEV_RESET)
2064 return;
2065 if (sdev->path) {
2066 xpt_release_devq(sdev->path,
2067 sdev->freeze, TRUE);
2068 sdev->freeze = 0;
2069 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2070 xpt_free_path(sdev->path);
2071 sdev->path = NULL;
2072 }
2073 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2074 }
2075
2076 static void
sbp_cam_detach_target(struct sbp_target * target)2077 sbp_cam_detach_target(struct sbp_target *target)
2078 {
2079 int i;
2080
2081 if (target->luns != NULL) {
2082 SBP_DEBUG(0)
2083 kprintf("sbp_detach_target %d\n", target->target_id);
2084 END_DEBUG
2085 callout_stop(&target->scan_callout);
2086 for (i = 0; i < target->num_lun; i++)
2087 sbp_cam_detach_sdev(target->luns[i]);
2088 }
2089 }
2090
2091 static void
sbp_target_reset(struct sbp_dev * sdev,int method)2092 sbp_target_reset(struct sbp_dev *sdev, int method)
2093 {
2094 int i;
2095 struct sbp_target *target = sdev->target;
2096 struct sbp_dev *tsdev;
2097
2098 for (i = 0; i < target->num_lun; i++) {
2099 tsdev = target->luns[i];
2100 if (tsdev == NULL)
2101 continue;
2102 if (tsdev->status == SBP_DEV_DEAD)
2103 continue;
2104 if (tsdev->status == SBP_DEV_RESET)
2105 continue;
2106 xpt_freeze_devq(tsdev->path, 1);
2107 tsdev->freeze ++;
2108 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2109 if (method == 2)
2110 tsdev->status = SBP_DEV_LOGIN;
2111 }
2112 switch(method) {
2113 case 1:
2114 kprintf("target reset\n");
2115 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2116 break;
2117 case 2:
2118 kprintf("reset start\n");
2119 sbp_reset_start(sdev);
2120 break;
2121 }
2122
2123 }
2124
2125 static void
sbp_mgm_timeout(void * arg)2126 sbp_mgm_timeout(void *arg)
2127 {
2128 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2129 struct sbp_dev *sdev = ocb->sdev;
2130 struct sbp_target *target = sdev->target;
2131
2132 sbp_show_sdev_info(sdev, 2);
2133 kprintf("request timeout(mgm orb:0x%08x) ... ",
2134 (u_int32_t)ocb->bus_addr);
2135 target->mgm_ocb_cur = NULL;
2136 sbp_free_ocb(sdev, ocb);
2137 #if 0
2138 /* XXX */
2139 kprintf("run next request\n");
2140 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2141 #endif
2142 #if 1
2143 kprintf("reset start\n");
2144 sbp_reset_start(sdev);
2145 #endif
2146 }
2147
2148 static void
sbp_timeout(void * arg)2149 sbp_timeout(void *arg)
2150 {
2151 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2152 struct sbp_dev *sdev = ocb->sdev;
2153
2154 sbp_show_sdev_info(sdev, 2);
2155 kprintf("request timeout(cmd orb:0x%08x) ... ",
2156 (u_int32_t)ocb->bus_addr);
2157
2158 sdev->timeout ++;
2159 switch(sdev->timeout) {
2160 case 1:
2161 kprintf("agent reset\n");
2162 xpt_freeze_devq(sdev->path, 1);
2163 sdev->freeze ++;
2164 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2165 sbp_agent_reset(sdev);
2166 break;
2167 case 2:
2168 case 3:
2169 sbp_target_reset(sdev, sdev->timeout - 1);
2170 break;
2171 #if 0
2172 default:
2173 /* XXX give up */
2174 sbp_cam_detach_target(target);
2175 if (target->luns != NULL)
2176 kfree(target->luns, M_SBP);
2177 target->num_lun = 0;
2178 target->luns = NULL;
2179 target->fwdev = NULL;
2180 #endif
2181 }
2182 }
2183
2184 static void
sbp_action1(struct cam_sim * sim,union ccb * ccb)2185 sbp_action1(struct cam_sim *sim, union ccb *ccb)
2186 {
2187
2188 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2189 struct sbp_target *target = NULL;
2190 struct sbp_dev *sdev = NULL;
2191
2192 /* target:lun -> sdev mapping */
2193 if (sbp != NULL
2194 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2195 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2196 target = &sbp->targets[ccb->ccb_h.target_id];
2197 if (target->fwdev != NULL
2198 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2199 && ccb->ccb_h.target_lun < target->num_lun) {
2200 sdev = target->luns[ccb->ccb_h.target_lun];
2201 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2202 sdev->status != SBP_DEV_PROBE)
2203 sdev = NULL;
2204 }
2205 }
2206
2207 SBP_DEBUG(1)
2208 if (sdev == NULL)
2209 kprintf("invalid target %d lun %d\n",
2210 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2211 END_DEBUG
2212
2213 switch (ccb->ccb_h.func_code) {
2214 case XPT_SCSI_IO:
2215 case XPT_RESET_DEV:
2216 case XPT_GET_TRAN_SETTINGS:
2217 case XPT_SET_TRAN_SETTINGS:
2218 case XPT_CALC_GEOMETRY:
2219 if (sdev == NULL) {
2220 SBP_DEBUG(1)
2221 kprintf("%s:%d:%d:func_code 0x%04x: "
2222 "Invalid target (target needed)\n",
2223 device_get_nameunit(sbp->fd.dev),
2224 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2225 ccb->ccb_h.func_code);
2226 END_DEBUG
2227
2228 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2229 xpt_done(ccb);
2230 return;
2231 }
2232 break;
2233 case XPT_PATH_INQ:
2234 case XPT_NOOP:
2235 /* The opcodes sometimes aimed at a target (sc is valid),
2236 * sometimes aimed at the SIM (sc is invalid and target is
2237 * CAM_TARGET_WILDCARD)
2238 */
2239 if (sbp == NULL &&
2240 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2241 SBP_DEBUG(0)
2242 kprintf("%s:%d:%d func_code 0x%04x: "
2243 "Invalid target (no wildcard)\n",
2244 device_get_nameunit(sbp->fd.dev),
2245 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2246 ccb->ccb_h.func_code);
2247 END_DEBUG
2248 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2249 xpt_done(ccb);
2250 return;
2251 }
2252 break;
2253 default:
2254 /* XXX Hm, we should check the input parameters */
2255 break;
2256 }
2257
2258 switch (ccb->ccb_h.func_code) {
2259 case XPT_SCSI_IO:
2260 {
2261 struct ccb_scsiio *csio;
2262 struct sbp_ocb *ocb;
2263 int speed;
2264 void *cdb;
2265
2266 csio = &ccb->csio;
2267
2268 SBP_DEBUG(2)
2269 kprintf("%s:%d:%d XPT_SCSI_IO: "
2270 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2271 ", flags: 0x%02x, "
2272 "%db cmd/%db data/%db sense\n",
2273 device_get_nameunit(sbp->fd.dev),
2274 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2275 csio->cdb_io.cdb_bytes[0],
2276 csio->cdb_io.cdb_bytes[1],
2277 csio->cdb_io.cdb_bytes[2],
2278 csio->cdb_io.cdb_bytes[3],
2279 csio->cdb_io.cdb_bytes[4],
2280 csio->cdb_io.cdb_bytes[5],
2281 csio->cdb_io.cdb_bytes[6],
2282 csio->cdb_io.cdb_bytes[7],
2283 csio->cdb_io.cdb_bytes[8],
2284 csio->cdb_io.cdb_bytes[9],
2285 ccb->ccb_h.flags & CAM_DIR_MASK,
2286 csio->cdb_len, csio->dxfer_len,
2287 csio->sense_len);
2288 END_DEBUG
2289 if(sdev == NULL){
2290 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2291 xpt_done(ccb);
2292 return;
2293 }
2294 #if 0
2295 /* if we are in probe stage, pass only probe commands */
2296 if (sdev->status == SBP_DEV_PROBE) {
2297 char *name;
2298 name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2299 kprintf("probe stage, periph name: %s\n", name);
2300 if (strcmp(name, "probe") != 0) {
2301 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2302 xpt_done(ccb);
2303 return;
2304 }
2305 }
2306 #endif
2307 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2308 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2309 xpt_done(ccb);
2310 return;
2311 }
2312
2313 ocb->flags = OCB_ACT_CMD;
2314 ocb->sdev = sdev;
2315 ocb->ccb = ccb;
2316 ccb->ccb_h.ccb_sdev_ptr = sdev;
2317 ocb->orb[0] = htonl(1 << 31);
2318 ocb->orb[1] = 0;
2319 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2320 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2321 speed = min(target->fwdev->speed, max_speed);
2322 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2323 | ORB_CMD_MAXP(speed + 7));
2324 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2325 ocb->orb[4] |= htonl(ORB_CMD_IN);
2326 }
2327
2328 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2329 kprintf("sbp: CAM_SCATTER_VALID\n");
2330 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2331 kprintf("sbp: CAM_DATA_PHYS\n");
2332
2333 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2334 cdb = (void *)csio->cdb_io.cdb_ptr;
2335 else
2336 cdb = (void *)&csio->cdb_io.cdb_bytes;
2337 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2338 /*
2339 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2340 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2341 */
2342 if (ccb->csio.dxfer_len > 0) {
2343 int error;
2344
2345 crit_enter();
2346 error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2347 /*dma map*/ocb->dmamap,
2348 ccb->csio.data_ptr,
2349 ccb->csio.dxfer_len,
2350 sbp_execute_ocb,
2351 ocb,
2352 /*flags*/0);
2353 crit_exit();
2354 if (error)
2355 kprintf("sbp: bus_dmamap_load error %d\n", error);
2356 } else
2357 sbp_execute_ocb(ocb, NULL, 0, 0);
2358 break;
2359 }
2360 case XPT_CALC_GEOMETRY:
2361 {
2362 struct ccb_calc_geometry *ccg;
2363 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2364 u_int32_t size_mb;
2365 u_int32_t secs_per_cylinder;
2366 int extended = 1;
2367 #endif
2368
2369 ccg = &ccb->ccg;
2370 if (ccg->block_size == 0) {
2371 kprintf("sbp_action1: block_size is 0.\n");
2372 ccb->ccb_h.status = CAM_REQ_INVALID;
2373 xpt_done(ccb);
2374 break;
2375 }
2376 SBP_DEBUG(1)
2377 kprintf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: Volume size = %ju\n",
2378 device_get_nameunit(sbp->fd.dev),
2379 cam_sim_path(sbp->sim),
2380 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2381 (uintmax_t)ccg->volume_size);
2382 END_DEBUG
2383
2384 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2385 size_mb = ccg->volume_size
2386 / ((1024L * 1024L) / ccg->block_size);
2387
2388 if (size_mb > 1024 && extended) {
2389 ccg->heads = 255;
2390 ccg->secs_per_track = 63;
2391 } else {
2392 ccg->heads = 64;
2393 ccg->secs_per_track = 32;
2394 }
2395 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2396 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2397 ccb->ccb_h.status = CAM_REQ_CMP;
2398 #else
2399 cam_calc_geometry(ccg, /*extended*/1);
2400 #endif
2401 xpt_done(ccb);
2402 break;
2403 }
2404 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
2405 {
2406
2407 SBP_DEBUG(1)
2408 kprintf("%s:%d:XPT_RESET_BUS: \n",
2409 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2410 END_DEBUG
2411
2412 ccb->ccb_h.status = CAM_REQ_INVALID;
2413 xpt_done(ccb);
2414 break;
2415 }
2416 case XPT_PATH_INQ: /* Path routing inquiry */
2417 {
2418 struct ccb_pathinq *cpi = &ccb->cpi;
2419
2420 SBP_DEBUG(1)
2421 kprintf("%s:%d:%d XPT_PATH_INQ:.\n",
2422 device_get_nameunit(sbp->fd.dev),
2423 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2424 END_DEBUG
2425 cpi->version_num = 1; /* XXX??? */
2426 cpi->hba_inquiry = PI_TAG_ABLE;
2427 cpi->target_sprt = 0;
2428 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2429 cpi->hba_eng_cnt = 0;
2430 cpi->max_target = SBP_NUM_TARGETS - 1;
2431 cpi->max_lun = SBP_NUM_LUNS - 1;
2432 cpi->initiator_id = SBP_INITIATOR;
2433 cpi->bus_id = sim->bus_id;
2434 cpi->base_transfer_speed = 400 * 1000 / 8;
2435 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2436 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2437 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2438 cpi->unit_number = sim->unit_number;
2439 cpi->transport = XPORT_SPI; /* XX should have a FireWire */
2440 cpi->transport_version = 2;
2441 cpi->protocol = PROTO_SCSI;
2442 cpi->protocol_version = SCSI_REV_2;
2443 cpi->maxio = SBP_MAXPHYS;
2444
2445 cpi->ccb_h.status = CAM_REQ_CMP;
2446 xpt_done(ccb);
2447 break;
2448 }
2449 case XPT_GET_TRAN_SETTINGS:
2450 {
2451 struct ccb_trans_settings *cts = &ccb->cts;
2452 struct ccb_trans_settings_scsi *scsi =
2453 &cts->proto_specific.scsi;
2454 struct ccb_trans_settings_spi *spi =
2455 &cts->xport_specific.spi;
2456
2457 cts->protocol = PROTO_SCSI;
2458 cts->protocol_version = SCSI_REV_2;
2459 cts->transport = XPORT_SPI; /* should have a FireWire */
2460 cts->transport_version = 2;
2461 spi->valid = CTS_SPI_VALID_DISC;
2462 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2463 scsi->valid = CTS_SCSI_VALID_TQ;
2464 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2465 SBP_DEBUG(1)
2466 kprintf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2467 device_get_nameunit(sbp->fd.dev),
2468 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2469 END_DEBUG
2470 cts->ccb_h.status = CAM_REQ_CMP;
2471 xpt_done(ccb);
2472 break;
2473 }
2474 case XPT_ABORT:
2475 ccb->ccb_h.status = CAM_UA_ABORT;
2476 xpt_done(ccb);
2477 break;
2478 case XPT_SET_TRAN_SETTINGS:
2479 /* XXX */
2480 default:
2481 ccb->ccb_h.status = CAM_REQ_INVALID;
2482 xpt_done(ccb);
2483 break;
2484 }
2485 return;
2486 }
2487
2488 static void
sbp_action(struct cam_sim * sim,union ccb * ccb)2489 sbp_action(struct cam_sim *sim, union ccb *ccb)
2490 {
2491 crit_enter();
2492 sbp_action1(sim, ccb);
2493 crit_exit();
2494 }
2495
2496 static void
sbp_execute_ocb(void * arg,bus_dma_segment_t * segments,int seg,int error)2497 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
2498 {
2499 int i;
2500 struct sbp_ocb *ocb;
2501 struct sbp_ocb *prev;
2502 bus_dma_segment_t *s;
2503
2504 if (error)
2505 kprintf("sbp_execute_ocb: error=%d\n", error);
2506
2507 ocb = (struct sbp_ocb *)arg;
2508
2509 SBP_DEBUG(2)
2510 kprintf("sbp_execute_ocb: seg %d", seg);
2511 for (i = 0; i < seg; i++)
2512 kprintf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2513 (uintmax_t)segments[i].ds_len);
2514 kprintf("\n");
2515 END_DEBUG
2516
2517 if (seg == 1) {
2518 /* direct pointer */
2519 s = &segments[0];
2520 if (s->ds_len > SBP_SEG_MAX)
2521 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2522 ocb->orb[3] = htonl(s->ds_addr);
2523 ocb->orb[4] |= htonl(s->ds_len);
2524 } else if(seg > 1) {
2525 /* page table */
2526 for (i = 0; i < seg; i++) {
2527 s = &segments[i];
2528 SBP_DEBUG(0)
2529 /* XXX LSI Logic "< 16 byte" bug might be hit */
2530 if (s->ds_len < 16)
2531 kprintf("sbp_execute_ocb: warning, "
2532 "segment length(%zd) is less than 16."
2533 "(seg=%d/%jd)\n",
2534 (size_t)s->ds_len, i+1, (intmax_t)seg);
2535 END_DEBUG
2536 if (s->ds_len > SBP_SEG_MAX)
2537 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2538 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2539 ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2540 }
2541 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2542 }
2543
2544 if (seg > 0)
2545 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2546 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2547 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2548 prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2549 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2550 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2551 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2552 sbp_orb_pointer(ocb->sdev, ocb);
2553 }
2554 }
2555
2556 static void
sbp_poll(struct cam_sim * sim)2557 sbp_poll(struct cam_sim *sim)
2558 {
2559 struct sbp_softc *sbp;
2560 struct firewire_comm *fc;
2561
2562 sbp = (struct sbp_softc *)sim->softc;
2563 fc = sbp->fd.fc;
2564
2565 fc->poll(fc, 0, -1);
2566
2567 return;
2568 }
2569
2570 static struct sbp_ocb *
sbp_dequeue_ocb(struct sbp_dev * sdev,struct sbp_status * sbp_status)2571 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2572 {
2573 struct sbp_ocb *ocb;
2574 struct sbp_ocb *next;
2575 int order = 0;
2576
2577 crit_enter();
2578
2579 SBP_DEBUG(1)
2580 sbp_show_sdev_info(sdev, 2);
2581 kprintf("%s: 0x%08x src %d\n",
2582 __func__, ntohl(sbp_status->orb_lo), sbp_status->src);
2583 END_DEBUG
2584 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2585 next = STAILQ_NEXT(ocb, ocb);
2586 if (OCB_MATCH(ocb, sbp_status)) {
2587 /* found */
2588 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2589 if (ocb->ccb != NULL)
2590 callout_stop(ocb->ccb->ccb_h.timeout_ch);
2591 if (ntohl(ocb->orb[4]) & 0xffff) {
2592 bus_dmamap_sync(sdev->target->sbp->dmat,
2593 ocb->dmamap,
2594 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2595 BUS_DMASYNC_POSTREAD :
2596 BUS_DMASYNC_POSTWRITE);
2597 bus_dmamap_unload(sdev->target->sbp->dmat,
2598 ocb->dmamap);
2599 }
2600 if (sbp_status->src == SRC_NO_NEXT) {
2601 if (next != NULL)
2602 sbp_orb_pointer(sdev, next);
2603 else if (order > 0) {
2604 /*
2605 * Unordered execution
2606 * We need to send pointer for
2607 * next ORB
2608 */
2609 sdev->flags |= ORB_LINK_DEAD;
2610 }
2611 }
2612 break;
2613 } else
2614 order ++;
2615 }
2616 crit_exit();
2617 SBP_DEBUG(0)
2618 if (ocb && order > 0) {
2619 sbp_show_sdev_info(sdev, 2);
2620 kprintf("unordered execution order:%d\n", order);
2621 }
2622 END_DEBUG
2623 return (ocb);
2624 }
2625
2626 static struct sbp_ocb *
sbp_enqueue_ocb(struct sbp_dev * sdev,struct sbp_ocb * ocb)2627 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2628 {
2629 struct sbp_ocb *prev;
2630
2631 crit_enter();
2632
2633 SBP_DEBUG(1)
2634 sbp_show_sdev_info(sdev, 2);
2635 kprintf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr);
2636 END_DEBUG
2637 prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2638 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2639
2640 if (ocb->ccb != NULL)
2641 callout_reset(ocb->ccb->ccb_h.timeout_ch,
2642 (ocb->ccb->ccb_h.timeout * hz) / 1000,
2643 sbp_timeout, ocb);
2644
2645 if (prev != NULL) {
2646 SBP_DEBUG(2)
2647 kprintf("linking chain 0x%jx -> 0x%jx\n",
2648 (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
2649 END_DEBUG
2650 prev->orb[1] = htonl(ocb->bus_addr);
2651 prev->orb[0] = 0;
2652 }
2653 crit_exit();
2654
2655 return prev;
2656 }
2657
2658 static struct sbp_ocb *
sbp_get_ocb(struct sbp_dev * sdev)2659 sbp_get_ocb(struct sbp_dev *sdev)
2660 {
2661 struct sbp_ocb *ocb;
2662
2663 crit_enter();
2664 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2665 if (ocb == NULL) {
2666 kprintf("ocb shortage!!!\n");
2667 crit_exit();
2668 return NULL;
2669 }
2670 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2671 crit_exit();
2672 ocb->ccb = NULL;
2673 return (ocb);
2674 }
2675
2676 static void
sbp_free_ocb(struct sbp_dev * sdev,struct sbp_ocb * ocb)2677 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2678 {
2679 ocb->flags = 0;
2680 ocb->ccb = NULL;
2681 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2682 }
2683
2684 static void
sbp_abort_ocb(struct sbp_ocb * ocb,int status)2685 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2686 {
2687 struct sbp_dev *sdev;
2688
2689 sdev = ocb->sdev;
2690 SBP_DEBUG(0)
2691 sbp_show_sdev_info(sdev, 2);
2692 kprintf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
2693 END_DEBUG
2694 SBP_DEBUG(1)
2695 if (ocb->ccb != NULL)
2696 sbp_print_scsi_cmd(ocb);
2697 END_DEBUG
2698 if (ntohl(ocb->orb[4]) & 0xffff) {
2699 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2700 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2701 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2702 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2703 }
2704 if (ocb->ccb != NULL) {
2705 callout_stop(ocb->ccb->ccb_h.timeout_ch);
2706 ocb->ccb->ccb_h.status = status;
2707 xpt_done(ocb->ccb);
2708 }
2709 sbp_free_ocb(sdev, ocb);
2710 }
2711
2712 static void
sbp_abort_all_ocbs(struct sbp_dev * sdev,int status)2713 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2714 {
2715 struct sbp_ocb *ocb, *next;
2716 STAILQ_HEAD(, sbp_ocb) temp;
2717
2718 crit_enter();
2719 STAILQ_INIT(&temp);
2720 STAILQ_CONCAT(&temp, &sdev->ocbs);
2721 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2722 next = STAILQ_NEXT(ocb, ocb);
2723 sbp_abort_ocb(ocb, status);
2724 }
2725 crit_exit();
2726 }
2727
2728 static devclass_t sbp_devclass;
2729
2730 /*
2731 * Because sbp is a static device that always exists under any attached
2732 * firewire device, and not scanned by the firewire device, we need an
2733 * identify function to install the device. For our sanity we want
2734 * the sbp device to have the same unit number as the fireweire device.
2735 */
2736
2737 static device_method_t sbp_methods[] = {
2738 /* device interface */
2739 DEVMETHOD(device_identify, bus_generic_identify_sameunit),
2740 DEVMETHOD(device_probe, sbp_probe),
2741 DEVMETHOD(device_attach, sbp_attach),
2742 DEVMETHOD(device_detach, sbp_detach),
2743 DEVMETHOD(device_shutdown, sbp_shutdown),
2744
2745 DEVMETHOD_END
2746 };
2747
2748 static driver_t sbp_driver = {
2749 "sbp",
2750 sbp_methods,
2751 sizeof(struct sbp_softc),
2752 };
2753
2754 DECLARE_DUMMY_MODULE(sbp);
2755 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, NULL, NULL);
2756 MODULE_VERSION(sbp, 1);
2757 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2758 MODULE_DEPEND(sbp, cam, 1, 1, 1);
2759