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if_iwm - Use chan list from ieee80211_scan_state for scan, not ic_channels.
[dragonfly.git] / sys / dev / disk / sbp / sbp.c
blob9220f39b10490409f758db0d36dce07eeb06cd25
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
56 #include <bus/firewire/firewire.h>
57 #include <bus/firewire/firewirereg.h>
58 #include <bus/firewire/fwdma.h>
59 #include <bus/firewire/iec13213.h>
60 #include "sbp.h"
61
62 #define ccb_sdev_ptr spriv_ptr0
63 #define ccb_sbp_ptr spriv_ptr1
64
65 #define SBP_NUM_TARGETS 8 /* MAX 64 */
66 /*
67 * Scan_bus doesn't work for more than 8 LUNs
68 * because of CAM_SCSI2_MAXLUN in cam_xpt.c
69 */
70 #define SBP_NUM_LUNS 64
71 #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */)
72 #define SBP_DMA_SIZE PAGE_SIZE
73 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
74 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
75 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
76
77 /*
78 * STATUS FIFO addressing
79 * bit
80 * -----------------------
81 * 0- 1( 2): 0 (alingment)
82 * 2- 7( 6): target
83 * 8-15( 8): lun
84 * 16-31( 8): reserved
85 * 32-47(16): SBP_BIND_HI
86 * 48-64(16): bus_id, node_id
87 */
88 #define SBP_BIND_HI 0x1
89 #define SBP_DEV2ADDR(t, l) \
90 (((u_int64_t)SBP_BIND_HI << 32) \
91 | (((l) & 0xff) << 8) \
92 | (((t) & 0x3f) << 2))
93 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
94 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
95 #define SBP_INITIATOR 7
96
97 static char *orb_fun_name[] = {
98 ORB_FUN_NAMES
99 };
100
101 static int debug = 0;
102 static int auto_login = 1;
103 static int max_speed = -1;
104 #if 0
105 static int sbp_cold = 1;
106 #endif
107 static int ex_login = 1;
108 static int login_delay = 1000; /* msec */
109 static int scan_delay = 500; /* msec */
110 static int sbp_tags = 0;
111
112 SYSCTL_DECL(_hw_firewire);
113 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
114 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
115 "SBP debug flag");
116 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
117 "SBP perform login automatically");
118 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
119 "SBP transfer max speed");
120 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
121 &ex_login, 0, "SBP transfer max speed");
122 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
123 &login_delay, 0, "SBP login delay in msec");
124 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
125 &scan_delay, 0, "SBP scan delay in msec");
126 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
127 "SBP tagged queuing support");
128
129 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
130 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
131 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
132 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
133 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
134 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
135
136 #define NEED_RESPONSE 0
137
138 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
139 #ifdef __sparc64__ /* iommu */
140 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX)
141 #else
142 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
143 #endif
144 struct sbp_ocb {
145 STAILQ_ENTRY(sbp_ocb) ocb;
146 union ccb *ccb;
147 bus_addr_t bus_addr;
148 u_int32_t orb[8];
149 #define IND_PTR_OFFSET (8*sizeof(u_int32_t))
150 struct ind_ptr ind_ptr[SBP_IND_MAX];
151 struct sbp_dev *sdev;
152 int flags; /* XXX should be removed */
153 bus_dmamap_t dmamap;
154 };
155
156 #define OCB_ACT_MGM 0
157 #define OCB_ACT_CMD 1
158 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
159
160 struct sbp_dev{
161 #define SBP_DEV_RESET 0 /* accept login */
162 #define SBP_DEV_LOGIN 1 /* to login */
163 #if 0
164 #define SBP_DEV_RECONN 2 /* to reconnect */
165 #endif
166 #define SBP_DEV_TOATTACH 3 /* to attach */
167 #define SBP_DEV_PROBE 4 /* scan lun */
168 #define SBP_DEV_ATTACHED 5 /* in operation */
169 #define SBP_DEV_DEAD 6 /* unavailable unit */
170 #define SBP_DEV_RETRY 7 /* unavailable unit */
171 u_int8_t status:4,
172 timeout:4;
173 u_int8_t type;
174 u_int16_t lun_id;
175 u_int16_t freeze;
176 #define ORB_LINK_DEAD (1 << 0)
177 #define VALID_LUN (1 << 1)
178 #define ORB_POINTER_ACTIVE (1 << 2)
179 #define ORB_POINTER_NEED (1 << 3)
180 u_int16_t flags;
181 struct cam_path *path;
182 struct sbp_target *target;
183 struct fwdma_alloc dma;
184 struct sbp_login_res *login;
185 struct callout login_callout;
186 struct sbp_ocb *ocb;
187 STAILQ_HEAD(, sbp_ocb) ocbs;
188 STAILQ_HEAD(, sbp_ocb) free_ocbs;
189 char vendor[32];
190 char product[32];
191 char revision[10];
192 };
193
194 struct sbp_target {
195 int target_id;
196 int num_lun;
197 struct sbp_dev **luns;
198 struct sbp_softc *sbp;
199 struct fw_device *fwdev;
200 u_int32_t mgm_hi, mgm_lo;
201 struct sbp_ocb *mgm_ocb_cur;
202 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
203 struct callout mgm_ocb_timeout;
204 struct callout scan_callout;
205 STAILQ_HEAD(, fw_xfer) xferlist;
206 int n_xfer;
207 };
208
209 struct sbp_softc {
210 struct firewire_dev_comm fd;
211 struct cam_sim *sim;
212 struct cam_path *path;
213 struct sbp_target targets[SBP_NUM_TARGETS];
214 struct fw_bind fwb;
215 bus_dma_tag_t dmat;
216 struct timeval last_busreset;
217 #define SIMQ_FREEZED 1
218 int flags;
219 };
220
221 static void sbp_post_explore (void *);
222 static void sbp_recv (struct fw_xfer *);
223 static void sbp_mgm_callback (struct fw_xfer *);
224 #if 0
225 static void sbp_cmd_callback (struct fw_xfer *);
226 #endif
227 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
228 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
229 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
230 static void sbp_abort_ocb (struct sbp_ocb *, int);
231 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
232 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
233 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
234 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
235 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
236 static void sbp_cam_detach_sdev(struct sbp_dev *);
237 static void sbp_free_sdev(struct sbp_dev *);
238 static void sbp_cam_detach_target (struct sbp_target *);
239 static void sbp_free_target (struct sbp_target *);
240 static void sbp_mgm_timeout (void *arg);
241 static void sbp_timeout (void *arg);
242 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
243
244 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
245
246 /* cam related functions */
247 static void sbp_action(struct cam_sim *sim, union ccb *ccb);
248 static void sbp_poll(struct cam_sim *sim);
249 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
250 static void sbp_cam_scan_target(void *arg);
251
252 static char *orb_status0[] = {
253 /* 0 */ "No additional information to report",
254 /* 1 */ "Request type not supported",
255 /* 2 */ "Speed not supported",
256 /* 3 */ "Page size not supported",
257 /* 4 */ "Access denied",
258 /* 5 */ "Logical unit not supported",
259 /* 6 */ "Maximum payload too small",
260 /* 7 */ "Reserved for future standardization",
261 /* 8 */ "Resources unavailable",
262 /* 9 */ "Function rejected",
263 /* A */ "Login ID not recognized",
264 /* B */ "Dummy ORB completed",
265 /* C */ "Request aborted",
266 /* FF */ "Unspecified error"
267 #define MAX_ORB_STATUS0 0xd
268 };
269
270 static char *orb_status1_object[] = {
271 /* 0 */ "Operation request block (ORB)",
272 /* 1 */ "Data buffer",
273 /* 2 */ "Page table",
274 /* 3 */ "Unable to specify"
275 };
276
277 static char *orb_status1_serial_bus_error[] = {
278 /* 0 */ "Missing acknowledge",
279 /* 1 */ "Reserved; not to be used",
280 /* 2 */ "Time-out error",
281 /* 3 */ "Reserved; not to be used",
282 /* 4 */ "Busy retry limit exceeded(X)",
283 /* 5 */ "Busy retry limit exceeded(A)",
284 /* 6 */ "Busy retry limit exceeded(B)",
285 /* 7 */ "Reserved for future standardization",
286 /* 8 */ "Reserved for future standardization",
287 /* 9 */ "Reserved for future standardization",
288 /* A */ "Reserved for future standardization",
289 /* B */ "Tardy retry limit exceeded",
290 /* C */ "Conflict error",
291 /* D */ "Data error",
292 /* E */ "Type error",
293 /* F */ "Address error"
294 };
295
296 /*
297 * sbp_probe()
298 */
299 static int
300 sbp_probe(device_t dev)
301 {
302 device_t pa;
303
304 SBP_DEBUG(0)
305 kprintf("sbp_probe\n");
306 END_DEBUG
307
308 pa = device_get_parent(dev);
309 if(device_get_unit(dev) != device_get_unit(pa)){
310 return(ENXIO);
311 }
312
313 device_set_desc(dev, "SBP-2/SCSI over FireWire");
314
315 if (bootverbose)
316 debug = bootverbose;
317 return (0);
318 }
319
320 static void
321 sbp_show_sdev_info(struct sbp_dev *sdev, int new)
322 {
323 struct fw_device *fwdev;
324
325 kprintf("%s:%d:%d ",
326 device_get_nameunit(sdev->target->sbp->fd.dev),
327 sdev->target->target_id,
328 sdev->lun_id
329 );
330 if (new == 2) {
331 return;
332 }
333 fwdev = sdev->target->fwdev;
334 kprintf("ordered:%d type:%d EUI:%08x%08x node:%d "
335 "speed:%d maxrec:%d",
336 (sdev->type & 0x40) >> 6,
337 (sdev->type & 0x1f),
338 fwdev->eui.hi,
339 fwdev->eui.lo,
340 fwdev->dst,
341 fwdev->speed,
342 fwdev->maxrec
343 );
344 if (new)
345 kprintf(" new!\n");
346 else
347 kprintf("\n");
348 sbp_show_sdev_info(sdev, 2);
349 kprintf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
350 }
351
352 static struct {
353 int bus;
354 int target;
355 struct fw_eui64 eui;
356 } wired[] = {
357 /* Bus Target EUI64 */
358 #if 0
359 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
360 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
361 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
362 #endif
363 {-1, -1, {0,0}}
364 };
365
366 static int
367 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
368 {
369 int bus, i, target=-1;
370 char w[SBP_NUM_TARGETS];
371
372 bzero(w, sizeof(w));
373 bus = device_get_unit(sbp->fd.dev);
374
375 /* XXX wired-down configuration should be gotten from
376 tunable or device hint */
377 for (i = 0; wired[i].bus >= 0; i ++) {
378 if (wired[i].bus == bus) {
379 w[wired[i].target] = 1;
380 if (wired[i].eui.hi == fwdev->eui.hi &&
381 wired[i].eui.lo == fwdev->eui.lo)
382 target = wired[i].target;
383 }
384 }
385 if (target >= 0) {
386 if(target < SBP_NUM_TARGETS &&
387 sbp->targets[target].fwdev == NULL)
388 return(target);
389 device_printf(sbp->fd.dev,
390 "target %d is not free for %08x:%08x\n",
391 target, fwdev->eui.hi, fwdev->eui.lo);
392 target = -1;
393 }
394 /* non-wired target */
395 for (i = 0; i < SBP_NUM_TARGETS; i ++)
396 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
397 target = i;
398 break;
399 }
400
401 return target;
402 }
403
404 static void
405 sbp_alloc_lun(struct sbp_target *target)
406 {
407 struct crom_context cc;
408 struct csrreg *reg;
409 struct sbp_dev *sdev, **newluns;
410 struct sbp_softc *sbp;
411 int maxlun, lun, i;
412
413 sbp = target->sbp;
414 crom_init_context(&cc, target->fwdev->csrrom);
415 /* XXX shoud parse appropriate unit directories only */
416 maxlun = -1;
417 while (cc.depth >= 0) {
418 reg = crom_search_key(&cc, CROM_LUN);
419 if (reg == NULL)
420 break;
421 lun = reg->val & 0xffff;
422 SBP_DEBUG(0)
423 kprintf("target %d lun %d found\n", target->target_id, lun);
424 END_DEBUG
425 if (maxlun < lun)
426 maxlun = lun;
427 crom_next(&cc);
428 }
429 if (maxlun < 0)
430 kprintf("%s:%d no LUN found\n",
431 device_get_nameunit(target->sbp->fd.dev),
432 target->target_id);
433
434 maxlun ++;
435 if (maxlun >= SBP_NUM_LUNS)
436 maxlun = SBP_NUM_LUNS;
437
438 /* Invalidiate stale devices */
439 for (lun = 0; lun < target->num_lun; lun ++) {
440 sdev = target->luns[lun];
441 if (sdev == NULL)
442 continue;
443 sdev->flags &= ~VALID_LUN;
444 if (lun >= maxlun) {
445 /* lost device */
446 sbp_cam_detach_sdev(sdev);
447 sbp_free_sdev(sdev);
448 }
449 }
450
451 /* Reallocate */
452 if (maxlun != target->num_lun) {
453 /*
454 * note: krealloc() does not support M_ZERO. We must zero
455 * the extended region manually.
456 */
457 newluns = krealloc(target->luns,
458 sizeof(struct sbp_dev *) * maxlun,
459 M_SBP, M_WAITOK);
460
461 if (maxlun > target->num_lun) {
462 bzero(&newluns[target->num_lun],
463 sizeof(struct sbp_dev *) *
464 (maxlun - target->num_lun));
465 }
466 target->luns = newluns;
467 target->num_lun = maxlun;
468 }
469
470 crom_init_context(&cc, target->fwdev->csrrom);
471 while (cc.depth >= 0) {
472 int new = 0;
473
474 reg = crom_search_key(&cc, CROM_LUN);
475 if (reg == NULL)
476 break;
477 lun = reg->val & 0xffff;
478 if (lun >= SBP_NUM_LUNS) {
479 kprintf("too large lun %d\n", lun);
480 goto next;
481 }
482
483 sdev = target->luns[lun];
484 if (sdev == NULL) {
485 sdev = kmalloc(sizeof(struct sbp_dev),
486 M_SBP, M_WAITOK | M_ZERO);
487 target->luns[lun] = sdev;
488 sdev->lun_id = lun;
489 sdev->target = target;
490 STAILQ_INIT(&sdev->ocbs);
491 CALLOUT_INIT(&sdev->login_callout);
492 sdev->status = SBP_DEV_RESET;
493 new = 1;
494 }
495 sdev->flags |= VALID_LUN;
496 sdev->type = (reg->val & 0xff0000) >> 16;
497
498 if (new == 0)
499 goto next;
500
501 fwdma_malloc(sbp->fd.fc,
502 /* alignment */ sizeof(u_int32_t),
503 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
504 if (sdev->dma.v_addr == NULL) {
505 kprintf("%s: dma space allocation failed\n",
506 __func__);
507 kfree(sdev, M_SBP);
508 target->luns[lun] = NULL;
509 goto next;
510 }
511 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
512 sdev->ocb = (struct sbp_ocb *)
513 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
514 bzero((char *)sdev->ocb,
515 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
516
517 STAILQ_INIT(&sdev->free_ocbs);
518 for (i = 0; i < SBP_QUEUE_LEN; i++) {
519 struct sbp_ocb *ocb;
520 ocb = &sdev->ocb[i];
521 ocb->bus_addr = sdev->dma.bus_addr
522 + SBP_LOGIN_SIZE
523 + sizeof(struct sbp_ocb) * i
524 + offsetof(struct sbp_ocb, orb[0]);
525 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
526 kprintf("sbp_attach: cannot create dmamap\n");
527 /* XXX */
528 goto next;
529 }
530 sbp_free_ocb(sdev, ocb);
531 }
532 next:
533 crom_next(&cc);
534 }
535
536 for (lun = 0; lun < target->num_lun; lun ++) {
537 sdev = target->luns[lun];
538 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
539 sbp_cam_detach_sdev(sdev);
540 sbp_free_sdev(sdev);
541 target->luns[lun] = NULL;
542 }
543 }
544 }
545
546 static struct sbp_target *
547 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
548 {
549 int i;
550 struct sbp_target *target;
551 struct crom_context cc;
552 struct csrreg *reg;
553
554 SBP_DEBUG(1)
555 kprintf("sbp_alloc_target\n");
556 END_DEBUG
557 i = sbp_new_target(sbp, fwdev);
558 if (i < 0) {
559 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
560 return NULL;
561 }
562 /* new target */
563 target = &sbp->targets[i];
564 target->sbp = sbp;
565 target->fwdev = fwdev;
566 target->target_id = i;
567 /* XXX we may want to reload mgm port after each bus reset */
568 /* XXX there might be multiple management agents */
569 crom_init_context(&cc, target->fwdev->csrrom);
570 reg = crom_search_key(&cc, CROM_MGM);
571 if (reg == NULL || reg->val == 0) {
572 kprintf("NULL management address\n");
573 target->fwdev = NULL;
574 return NULL;
575 }
576 target->mgm_hi = 0xffff;
577 target->mgm_lo = 0xf0000000 | (reg->val << 2);
578 target->mgm_ocb_cur = NULL;
579 SBP_DEBUG(1)
580 kprintf("target:%d mgm_port: %x\n", i, target->mgm_lo);
581 END_DEBUG
582 STAILQ_INIT(&target->xferlist);
583 target->n_xfer = 0;
584 STAILQ_INIT(&target->mgm_ocb_queue);
585 CALLOUT_INIT(&target->mgm_ocb_timeout);
586 CALLOUT_INIT(&target->scan_callout);
587
588 target->luns = NULL;
589 target->num_lun = 0;
590 return target;
591 }
592
593 static void
594 sbp_probe_lun(struct sbp_dev *sdev)
595 {
596 struct fw_device *fwdev;
597 struct crom_context c, *cc = &c;
598 struct csrreg *reg;
599
600 bzero(sdev->vendor, sizeof(sdev->vendor));
601 bzero(sdev->product, sizeof(sdev->product));
602
603 fwdev = sdev->target->fwdev;
604 crom_init_context(cc, fwdev->csrrom);
605 /* get vendor string */
606 crom_search_key(cc, CSRKEY_VENDOR);
607 crom_next(cc);
608 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
609 /* skip to the unit directory for SBP-2 */
610 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
611 if (reg->val == CSRVAL_T10SBP2)
612 break;
613 crom_next(cc);
614 }
615 /* get firmware revision */
616 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
617 if (reg != NULL)
618 ksnprintf(sdev->revision, sizeof(sdev->revision),
619 "%06x", reg->val);
620 /* get product string */
621 crom_search_key(cc, CSRKEY_MODEL);
622 crom_next(cc);
623 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
624 }
625
626 static void
627 sbp_login_callout(void *arg)
628 {
629 struct sbp_dev *sdev = (struct sbp_dev *)arg;
630 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
631 }
632
633 static void
634 sbp_login(struct sbp_dev *sdev)
635 {
636 struct timeval delta;
637 struct timeval t;
638 int ticks = 0;
639
640 microtime(&delta);
641 timevalsub(&delta, &sdev->target->sbp->last_busreset);
642 t.tv_sec = login_delay / 1000;
643 t.tv_usec = (login_delay % 1000) * 1000;
644 timevalsub(&t, &delta);
645 if (t.tv_sec >= 0 && t.tv_usec > 0)
646 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
647 SBP_DEBUG(0)
648 kprintf("%s: sec = %ld usec = %ld ticks = %d\n", __func__,
649 t.tv_sec, t.tv_usec, ticks);
650 END_DEBUG
651 callout_reset(&sdev->login_callout, ticks,
652 sbp_login_callout, (void *)(sdev));
653 }
654
655 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
656 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
657
658 static void
659 sbp_probe_target(void *arg)
660 {
661 struct sbp_target *target = (struct sbp_target *)arg;
662 struct sbp_dev *sdev;
663 int i, alive;
664
665 alive = SBP_FWDEV_ALIVE(target->fwdev);
666 SBP_DEBUG(1)
667 kprintf("sbp_probe_target %d\n", target->target_id);
668 if (!alive)
669 kprintf("not alive\n");
670 END_DEBUG
671
672 sbp_alloc_lun(target);
673
674 /* XXX callout_stop mgm_ocb and dequeue */
675 for (i=0; i < target->num_lun; i++) {
676 sdev = target->luns[i];
677 if (sdev == NULL)
678 continue;
679 if (alive && (sdev->status != SBP_DEV_DEAD)) {
680 if (sdev->path != NULL) {
681 xpt_freeze_devq(sdev->path, 1);
682 sdev->freeze ++;
683 }
684 sbp_probe_lun(sdev);
685 SBP_DEBUG(0)
686 sbp_show_sdev_info(sdev,
687 (sdev->status == SBP_DEV_RESET));
688 END_DEBUG
689
690 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
691 switch (sdev->status) {
692 case SBP_DEV_RESET:
693 /* new or revived target */
694 if (auto_login)
695 sbp_login(sdev);
696 break;
697 case SBP_DEV_TOATTACH:
698 case SBP_DEV_PROBE:
699 case SBP_DEV_ATTACHED:
700 case SBP_DEV_RETRY:
701 default:
702 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
703 break;
704 }
705 } else {
706 switch (sdev->status) {
707 case SBP_DEV_ATTACHED:
708 SBP_DEBUG(0)
709 /* the device has gone */
710 sbp_show_sdev_info(sdev, 2);
711 kprintf("lost target\n");
712 END_DEBUG
713 #if 0
714 if (sdev->path) {
715 xpt_freeze_devq(sdev->path, 1);
716 sdev->freeze ++;
717 }
718 sdev->status = SBP_DEV_RETRY;
719 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
720 #endif
721 sbp_cam_detach_target(sdev->target);
722 sdev->status = SBP_DEV_RESET;
723 break;
724 case SBP_DEV_PROBE:
725 case SBP_DEV_TOATTACH:
726 sdev->status = SBP_DEV_RESET;
727 break;
728 case SBP_DEV_RETRY:
729 case SBP_DEV_RESET:
730 case SBP_DEV_DEAD:
731 break;
732 }
733 }
734 }
735 }
736
737 static void
738 sbp_post_busreset(void *arg)
739 {
740 struct sbp_softc *sbp;
741
742 sbp = (struct sbp_softc *)arg;
743 SBP_DEBUG(0)
744 kprintf("sbp_post_busreset\n");
745 END_DEBUG
746 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
747 xpt_freeze_simq(sbp->sim, /*count*/1);
748 sbp->sim->flags |= SIMQ_FREEZED;
749 }
750 microtime(&sbp->last_busreset);
751 }
752
753 static void
754 sbp_post_explore(void *arg)
755 {
756 struct sbp_softc *sbp = (struct sbp_softc *)arg;
757 struct sbp_target *target;
758 struct fw_device *fwdev;
759 int i, alive;
760
761 SBP_DEBUG(0)
762 kprintf("sbp_post_explore\n");
763 END_DEBUG
764 #if 0
765 if (sbp_cold > 0)
766 sbp_cold --;
767 #endif
768
769 #if 0
770 /*
771 * XXX don't let CAM the bus rest.
772 * CAM tries to do something with freezed (DEV_RETRY) devices.
773 */
774 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
775 #endif
776
777 /* Gabage Collection */
778 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
779 target = &sbp->targets[i];
780 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
781 if (target->fwdev == NULL || target->fwdev == fwdev)
782 break;
783 if (fwdev == NULL) {
784 /* device has removed in lower driver */
785 sbp_cam_detach_target(target);
786 sbp_free_target(target);
787 }
788 }
789 /* traverse device list */
790 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
791 SBP_DEBUG(0)
792 kprintf("sbp_post_explore: EUI:%08x%08x ",
793 fwdev->eui.hi, fwdev->eui.lo);
794 if (fwdev->status != FWDEVATTACHED)
795 kprintf("not attached, state=%d.\n", fwdev->status);
796 else
797 kprintf("attached\n");
798 END_DEBUG
799 alive = SBP_FWDEV_ALIVE(fwdev);
800 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
801 target = &sbp->targets[i];
802 if(target->fwdev == fwdev ) {
803 /* known target */
804 break;
805 }
806 }
807 if(i == SBP_NUM_TARGETS){
808 if (alive) {
809 /* new target */
810 target = sbp_alloc_target(sbp, fwdev);
811 if (target == NULL)
812 continue;
813 } else {
814 continue;
815 }
816 }
817 sbp_probe_target((void *)target);
818 if (target->num_lun == 0)
819 sbp_free_target(target);
820 }
821 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
822 sbp->sim->flags &= ~SIMQ_FREEZED;
823 }
824
825 #if NEED_RESPONSE
826 static void
827 sbp_loginres_callback(struct fw_xfer *xfer){
828 struct sbp_dev *sdev;
829 sdev = (struct sbp_dev *)xfer->sc;
830 SBP_DEBUG(1)
831 sbp_show_sdev_info(sdev, 2);
832 kprintf("sbp_loginres_callback\n");
833 END_DEBUG
834 /* recycle */
835 crit_enter();
836 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
837 crit_exit();
838 return;
839 }
840 #endif
841
842 static __inline void
843 sbp_xfer_free(struct fw_xfer *xfer)
844 {
845 struct sbp_dev *sdev;
846
847 sdev = (struct sbp_dev *)xfer->sc;
848 fw_xfer_unload(xfer);
849 crit_enter();
850 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
851 crit_exit();
852 }
853
854 static void
855 sbp_reset_start_callback(struct fw_xfer *xfer)
856 {
857 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
858 struct sbp_target *target = sdev->target;
859 int i;
860
861 if (xfer->resp != 0) {
862 sbp_show_sdev_info(sdev, 2);
863 kprintf("sbp_reset_start failed: resp=%d\n", xfer->resp);
864 }
865
866 for (i = 0; i < target->num_lun; i++) {
867 tsdev = target->luns[i];
868 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
869 sbp_login(tsdev);
870 }
871 }
872
873 static void
874 sbp_reset_start(struct sbp_dev *sdev)
875 {
876 struct fw_xfer *xfer;
877 struct fw_pkt *fp;
878
879 SBP_DEBUG(0)
880 sbp_show_sdev_info(sdev, 2);
881 kprintf("sbp_reset_start\n");
882 END_DEBUG
883
884 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
885 xfer->act.hand = sbp_reset_start_callback;
886 fp = &xfer->send.hdr;
887 fp->mode.wreqq.dest_hi = 0xffff;
888 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
889 fp->mode.wreqq.data = htonl(0xf);
890 fw_asyreq(xfer->fc, -1, xfer);
891 }
892
893 static void
894 sbp_mgm_callback(struct fw_xfer *xfer)
895 {
896 struct sbp_dev *sdev;
897 #if 0
898 int resp;
899 #endif
900
901 sdev = (struct sbp_dev *)xfer->sc;
902
903 SBP_DEBUG(1)
904 sbp_show_sdev_info(sdev, 2);
905 kprintf("sbp_mgm_callback\n");
906 END_DEBUG
907 #if 0
908 resp = xfer->resp;
909 #endif
910 sbp_xfer_free(xfer);
911 #if 0
912 if (resp != 0) {
913 sbp_show_sdev_info(sdev, 2);
914 kprintf("management ORB failed(%d) ... RESET_START\n", resp);
915 sbp_reset_start(sdev);
916 }
917 #endif
918 return;
919 }
920
921 static struct sbp_dev *
922 sbp_next_dev(struct sbp_target *target, int lun)
923 {
924 struct sbp_dev **sdevp;
925 int i;
926
927 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
928 i++, sdevp++)
929 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
930 return(*sdevp);
931 return(NULL);
932 }
933
934 #define SCAN_PRI 1
935 static void
936 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
937 {
938 struct sbp_target *target;
939 struct sbp_dev *sdev;
940
941 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
942 target = sdev->target;
943 SBP_DEBUG(0)
944 sbp_show_sdev_info(sdev, 2);
945 kprintf("sbp_cam_scan_lun\n");
946 END_DEBUG
947 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
948 sdev->status = SBP_DEV_ATTACHED;
949 } else {
950 sbp_show_sdev_info(sdev, 2);
951 kprintf("scan failed\n");
952 }
953 sdev = sbp_next_dev(target, sdev->lun_id + 1);
954 if (sdev == NULL) {
955 kfree(ccb, M_SBP);
956 return;
957 }
958 /* reuse ccb */
959 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
960 ccb->ccb_h.ccb_sdev_ptr = sdev;
961 xpt_action(ccb);
962 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
963 sdev->freeze = 1;
964 }
965
966 static void
967 sbp_cam_scan_target(void *arg)
968 {
969 struct sbp_target *target = (struct sbp_target *)arg;
970 struct sbp_dev *sdev;
971 union ccb *ccb;
972
973 sdev = sbp_next_dev(target, 0);
974 if (sdev == NULL) {
975 kprintf("sbp_cam_scan_target: nothing to do for target%d\n",
976 target->target_id);
977 return;
978 }
979 SBP_DEBUG(0)
980 sbp_show_sdev_info(sdev, 2);
981 kprintf("sbp_cam_scan_target\n");
982 END_DEBUG
983 ccb = kmalloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO);
984 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
985 ccb->ccb_h.func_code = XPT_SCAN_LUN;
986 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
987 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
988 ccb->crcn.flags = CAM_FLAG_NONE;
989 ccb->ccb_h.ccb_sdev_ptr = sdev;
990
991 /* The scan is in progress now. */
992 xpt_action(ccb);
993 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
994 sdev->freeze = 1;
995 }
996
997 static __inline void
998 sbp_scan_dev(struct sbp_dev *sdev)
999 {
1000 sdev->status = SBP_DEV_PROBE;
1001 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1002 sbp_cam_scan_target, (void *)sdev->target);
1003 }
1004
1005 static void
1006 sbp_do_attach(struct fw_xfer *xfer)
1007 {
1008 struct sbp_dev *sdev;
1009 struct sbp_target *target;
1010
1011 sdev = (struct sbp_dev *)xfer->sc;
1012 target = sdev->target;
1013 SBP_DEBUG(0)
1014 sbp_show_sdev_info(sdev, 2);
1015 kprintf("sbp_do_attach\n");
1016 END_DEBUG
1017 sbp_xfer_free(xfer);
1018
1019 if (sdev->path == NULL)
1020 xpt_create_path(&sdev->path, xpt_periph,
1021 cam_sim_path(target->sbp->sim),
1022 target->target_id, sdev->lun_id);
1023
1024 #if 0
1025 /*
1026 * Let CAM scan the bus if we are in the boot process.
1027 * XXX xpt_scan_bus cannot detect LUN larger than 0
1028 * if LUN 0 doesn't exists.
1029 */
1030 if (sbp_cold > 0) {
1031 sdev->status = SBP_DEV_ATTACHED;
1032 return;
1033 }
1034 #endif
1035
1036 sbp_scan_dev(sdev);
1037 return;
1038 }
1039
1040 static void
1041 sbp_agent_reset_callback(struct fw_xfer *xfer)
1042 {
1043 struct sbp_dev *sdev;
1044
1045 sdev = (struct sbp_dev *)xfer->sc;
1046 SBP_DEBUG(1)
1047 sbp_show_sdev_info(sdev, 2);
1048 kprintf("%s\n", __func__);
1049 END_DEBUG
1050 if (xfer->resp != 0) {
1051 sbp_show_sdev_info(sdev, 2);
1052 kprintf("%s: resp=%d\n", __func__, xfer->resp);
1053 }
1054
1055 sbp_xfer_free(xfer);
1056 if (sdev->path) {
1057 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1058 sdev->freeze = 0;
1059 }
1060 }
1061
1062 static void
1063 sbp_agent_reset(struct sbp_dev *sdev)
1064 {
1065 struct fw_xfer *xfer;
1066 struct fw_pkt *fp;
1067
1068 SBP_DEBUG(0)
1069 sbp_show_sdev_info(sdev, 2);
1070 kprintf("sbp_agent_reset\n");
1071 END_DEBUG
1072 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1073 if (xfer == NULL)
1074 return;
1075 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1076 xfer->act.hand = sbp_agent_reset_callback;
1077 else
1078 xfer->act.hand = sbp_do_attach;
1079 fp = &xfer->send.hdr;
1080 fp->mode.wreqq.data = htonl(0xf);
1081 fw_asyreq(xfer->fc, -1, xfer);
1082 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1083 }
1084
1085 static void
1086 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1087 {
1088 struct sbp_dev *sdev;
1089
1090 sdev = (struct sbp_dev *)xfer->sc;
1091 SBP_DEBUG(1)
1092 sbp_show_sdev_info(sdev, 2);
1093 kprintf("sbp_busy_timeout_callback\n");
1094 END_DEBUG
1095 sbp_xfer_free(xfer);
1096 sbp_agent_reset(sdev);
1097 }
1098
1099 static void
1100 sbp_busy_timeout(struct sbp_dev *sdev)
1101 {
1102 struct fw_pkt *fp;
1103 struct fw_xfer *xfer;
1104 SBP_DEBUG(0)
1105 sbp_show_sdev_info(sdev, 2);
1106 kprintf("sbp_busy_timeout\n");
1107 END_DEBUG
1108 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1109
1110 xfer->act.hand = sbp_busy_timeout_callback;
1111 fp = &xfer->send.hdr;
1112 fp->mode.wreqq.dest_hi = 0xffff;
1113 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1114 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1115 fw_asyreq(xfer->fc, -1, xfer);
1116 }
1117
1118 static void
1119 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1120 {
1121 struct sbp_dev *sdev;
1122 sdev = (struct sbp_dev *)xfer->sc;
1123
1124 SBP_DEBUG(1)
1125 sbp_show_sdev_info(sdev, 2);
1126 kprintf("%s\n", __func__);
1127 END_DEBUG
1128 if (xfer->resp != 0) {
1129 /* XXX */
1130 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1131 }
1132 sbp_xfer_free(xfer);
1133 sdev->flags &= ~ORB_POINTER_ACTIVE;
1134
1135 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1136 struct sbp_ocb *ocb;
1137
1138 sdev->flags &= ~ORB_POINTER_NEED;
1139 ocb = STAILQ_FIRST(&sdev->ocbs);
1140 if (ocb != NULL)
1141 sbp_orb_pointer(sdev, ocb);
1142 }
1143 return;
1144 }
1145
1146 static void
1147 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1148 {
1149 struct fw_xfer *xfer;
1150 struct fw_pkt *fp;
1151 SBP_DEBUG(1)
1152 sbp_show_sdev_info(sdev, 2);
1153 kprintf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr);
1154 END_DEBUG
1155
1156 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1157 SBP_DEBUG(0)
1158 kprintf("%s: orb pointer active\n", __func__);
1159 END_DEBUG
1160 sdev->flags |= ORB_POINTER_NEED;
1161 return;
1162 }
1163
1164 sdev->flags |= ORB_POINTER_ACTIVE;
1165 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1166 if (xfer == NULL)
1167 return;
1168 xfer->act.hand = sbp_orb_pointer_callback;
1169
1170 fp = &xfer->send.hdr;
1171 fp->mode.wreqb.len = 8;
1172 fp->mode.wreqb.extcode = 0;
1173 xfer->send.payload[0] =
1174 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1175 xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr);
1176
1177 if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1178 sbp_xfer_free(xfer);
1179 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1180 xpt_done(ocb->ccb);
1181 }
1182 }
1183
1184 #if 0
1185 static void
1186 sbp_cmd_callback(struct fw_xfer *xfer)
1187 {
1188 SBP_DEBUG(1)
1189 struct sbp_dev *sdev;
1190 sdev = (struct sbp_dev *)xfer->sc;
1191 sbp_show_sdev_info(sdev, 2);
1192 kprintf("sbp_cmd_callback\n");
1193 END_DEBUG
1194 if (xfer->resp != 0) {
1195 /* XXX */
1196 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1197 }
1198 sbp_xfer_free(xfer);
1199 return;
1200 }
1201
1202 static void
1203 sbp_doorbell(struct sbp_dev *sdev)
1204 {
1205 struct fw_xfer *xfer;
1206 struct fw_pkt *fp;
1207 SBP_DEBUG(1)
1208 sbp_show_sdev_info(sdev, 2);
1209 kprintf("sbp_doorbell\n");
1210 END_DEBUG
1211
1212 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1213 if (xfer == NULL)
1214 return;
1215 xfer->act.hand = sbp_cmd_callback;
1216 fp = (struct fw_pkt *)xfer->send.buf;
1217 fp->mode.wreqq.data = htonl(0xf);
1218 fw_asyreq(xfer->fc, -1, xfer);
1219 }
1220 #endif
1221
1222 static struct fw_xfer *
1223 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1224 {
1225 struct fw_xfer *xfer;
1226 struct fw_pkt *fp;
1227 struct sbp_target *target;
1228 int new = 0;
1229
1230 target = sdev->target;
1231 crit_enter();
1232 xfer = STAILQ_FIRST(&target->xferlist);
1233 if (xfer == NULL) {
1234 if (target->n_xfer > 5 /* XXX */) {
1235 kprintf("sbp: no more xfer for this target\n");
1236 crit_exit();
1237 return(NULL);
1238 }
1239 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1240 if(xfer == NULL){
1241 kprintf("sbp: fw_xfer_alloc_buf failed\n");
1242 crit_exit();
1243 return NULL;
1244 }
1245 target->n_xfer ++;
1246 if (debug)
1247 kprintf("sbp: alloc %d xfer\n", target->n_xfer);
1248 new = 1;
1249 } else {
1250 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1251 }
1252 crit_exit();
1253
1254 microtime(&xfer->tv);
1255
1256 if (new) {
1257 xfer->recv.pay_len = 0;
1258 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1259 xfer->fc = sdev->target->sbp->fd.fc;
1260 xfer->retry_req = fw_asybusy;
1261 }
1262
1263 if (tcode == FWTCODE_WREQB)
1264 xfer->send.pay_len = 8;
1265 else
1266 xfer->send.pay_len = 0;
1267
1268 xfer->sc = (caddr_t)sdev;
1269 fp = &xfer->send.hdr;
1270 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1271 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1272 fp->mode.wreqq.tlrt = 0;
1273 fp->mode.wreqq.tcode = tcode;
1274 fp->mode.wreqq.pri = 0;
1275 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1276
1277 return xfer;
1278
1279 }
1280
1281 static void
1282 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1283 {
1284 struct fw_xfer *xfer;
1285 struct fw_pkt *fp;
1286 struct sbp_ocb *ocb;
1287 struct sbp_target *target;
1288 int nid;
1289
1290 target = sdev->target;
1291 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1292
1293 crit_enter();
1294 if (func == ORB_FUN_RUNQUEUE) {
1295 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1296 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1297 crit_exit();
1298 return;
1299 }
1300 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1301 goto start;
1302 }
1303 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1304 crit_exit();
1305 /* XXX */
1306 return;
1307 }
1308 ocb->flags = OCB_ACT_MGM;
1309 ocb->sdev = sdev;
1310
1311 bzero((void *)ocb->orb, sizeof(ocb->orb));
1312 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1313 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1314
1315 SBP_DEBUG(0)
1316 sbp_show_sdev_info(sdev, 2);
1317 kprintf("%s\n", orb_fun_name[(func>>16)&0xf]);
1318 END_DEBUG
1319 switch (func) {
1320 case ORB_FUN_LGI:
1321 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1322 ocb->orb[2] = htonl(nid << 16);
1323 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1324 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1325 if (ex_login)
1326 ocb->orb[4] |= htonl(ORB_EXV);
1327 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1328 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1329 break;
1330 case ORB_FUN_ATA:
1331 ocb->orb[0] = htonl((0 << 16) | 0);
1332 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1333 /* fall through */
1334 case ORB_FUN_RCN:
1335 case ORB_FUN_LGO:
1336 case ORB_FUN_LUR:
1337 case ORB_FUN_RST:
1338 case ORB_FUN_ATS:
1339 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1340 break;
1341 }
1342
1343 if (target->mgm_ocb_cur != NULL) {
1344 /* there is a standing ORB */
1345 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1346 crit_exit();
1347 return;
1348 }
1349 start:
1350 target->mgm_ocb_cur = ocb;
1351 crit_exit();
1352
1353 callout_reset(&target->mgm_ocb_timeout, 5*hz,
1354 sbp_mgm_timeout, (caddr_t)ocb);
1355 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1356 if(xfer == NULL){
1357 return;
1358 }
1359 xfer->act.hand = sbp_mgm_callback;
1360
1361 fp = &xfer->send.hdr;
1362 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1363 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1364 fp->mode.wreqb.len = 8;
1365 fp->mode.wreqb.extcode = 0;
1366 xfer->send.payload[0] = htonl(nid << 16);
1367 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1368 SBP_DEBUG(0)
1369 sbp_show_sdev_info(sdev, 2);
1370 kprintf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr);
1371 END_DEBUG
1372
1373 fw_asyreq(xfer->fc, -1, xfer);
1374 }
1375
1376 static void
1377 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1378 {
1379 struct ccb_scsiio *csio;
1380
1381 csio = &ocb->ccb->csio;
1382 kprintf("%s:%d:%d XPT_SCSI_IO: "
1383 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1384 ", flags: 0x%02x, "
1385 "%db cmd/%db data/%db sense\n",
1386 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1387 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1388 csio->cdb_io.cdb_bytes[0],
1389 csio->cdb_io.cdb_bytes[1],
1390 csio->cdb_io.cdb_bytes[2],
1391 csio->cdb_io.cdb_bytes[3],
1392 csio->cdb_io.cdb_bytes[4],
1393 csio->cdb_io.cdb_bytes[5],
1394 csio->cdb_io.cdb_bytes[6],
1395 csio->cdb_io.cdb_bytes[7],
1396 csio->cdb_io.cdb_bytes[8],
1397 csio->cdb_io.cdb_bytes[9],
1398 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1399 csio->cdb_len, csio->dxfer_len,
1400 csio->sense_len);
1401 }
1402
1403 static void
1404 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1405 {
1406 struct sbp_cmd_status *sbp_cmd_status;
1407 struct scsi_sense_data *sense;
1408
1409 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1410 sense = &ocb->ccb->csio.sense_data;
1411
1412 SBP_DEBUG(0)
1413 sbp_print_scsi_cmd(ocb);
1414 /* XXX need decode status */
1415 sbp_show_sdev_info(ocb->sdev, 2);
1416 kprintf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1417 sbp_cmd_status->status,
1418 sbp_cmd_status->sfmt,
1419 sbp_cmd_status->valid,
1420 sbp_cmd_status->s_key,
1421 sbp_cmd_status->s_code,
1422 sbp_cmd_status->s_qlfr,
1423 sbp_status->len
1424 );
1425 END_DEBUG
1426
1427 switch (sbp_cmd_status->status) {
1428 case SCSI_STATUS_CHECK_COND:
1429 case SCSI_STATUS_BUSY:
1430 case SCSI_STATUS_CMD_TERMINATED:
1431 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1432 sense->error_code = SSD_CURRENT_ERROR;
1433 }else{
1434 sense->error_code = SSD_DEFERRED_ERROR;
1435 }
1436 if(sbp_cmd_status->valid)
1437 sense->error_code |= SSD_ERRCODE_VALID;
1438 sense->flags = sbp_cmd_status->s_key;
1439 if(sbp_cmd_status->mark)
1440 sense->flags |= SSD_FILEMARK;
1441 if(sbp_cmd_status->eom)
1442 sense->flags |= SSD_EOM;
1443 if(sbp_cmd_status->ill_len)
1444 sense->flags |= SSD_ILI;
1445
1446 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1447
1448 if (sbp_status->len <= 1)
1449 /* XXX not scsi status. shouldn't be happened */
1450 sense->extra_len = 0;
1451 else if (sbp_status->len <= 4)
1452 /* add_sense_code(_qual), info, cmd_spec_info */
1453 sense->extra_len = 6;
1454 else
1455 /* fru, sense_key_spec */
1456 sense->extra_len = 10;
1457
1458 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1459
1460 sense->add_sense_code = sbp_cmd_status->s_code;
1461 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1462 sense->fru = sbp_cmd_status->fru;
1463
1464 bcopy(&sbp_cmd_status->s_keydep[0],
1465 &sense->sense_key_spec[0], 3);
1466
1467 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1468 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1469 | CAM_AUTOSNS_VALID;
1470 /*
1471 {
1472 u_int8_t j, *tmp;
1473 tmp = sense;
1474 for( j = 0 ; j < 32 ; j+=8){
1475 kprintf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1476 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1477 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1478 }
1479
1480 }
1481 */
1482 break;
1483 default:
1484 sbp_show_sdev_info(ocb->sdev, 2);
1485 kprintf("sbp_scsi_status: unknown scsi status 0x%x\n",
1486 sbp_cmd_status->status);
1487 }
1488 }
1489
1490 static void
1491 sbp_fix_inq_data(struct sbp_ocb *ocb)
1492 {
1493 union ccb *ccb;
1494 struct sbp_dev *sdev;
1495 struct scsi_inquiry_data *inq;
1496
1497 ccb = ocb->ccb;
1498 sdev = ocb->sdev;
1499
1500 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1501 return;
1502 SBP_DEBUG(1)
1503 sbp_show_sdev_info(sdev, 2);
1504 kprintf("sbp_fix_inq_data\n");
1505 END_DEBUG
1506 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1507 switch (SID_TYPE(inq)) {
1508 case T_DIRECT:
1509 #if 0
1510 /*
1511 * XXX Convert Direct Access device to RBC.
1512 * I've never seen FireWire DA devices which support READ_6.
1513 */
1514 if (SID_TYPE(inq) == T_DIRECT)
1515 inq->device |= T_RBC; /* T_DIRECT == 0 */
1516 #endif
1517 /* fall through */
1518 case T_RBC:
1519 /* enable tagged queuing */
1520 if (sbp_tags)
1521 inq->flags |= SID_CmdQue;
1522 else
1523 inq->flags &= ~SID_CmdQue;
1524 /*
1525 * Override vendor/product/revision information.
1526 * Some devices sometimes return strange strings.
1527 */
1528 #if 1
1529 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1530 bcopy(sdev->product, inq->product, sizeof(inq->product));
1531 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1532 #endif
1533 break;
1534 }
1535 }
1536
1537 static void
1538 sbp_recv1(struct fw_xfer *xfer)
1539 {
1540 struct fw_pkt *rfp;
1541 #if NEED_RESPONSE
1542 struct fw_pkt *sfp;
1543 #endif
1544 struct sbp_softc *sbp;
1545 struct sbp_dev *sdev;
1546 struct sbp_ocb *ocb;
1547 struct sbp_login_res *login_res = NULL;
1548 struct sbp_status *sbp_status;
1549 struct sbp_target *target;
1550 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1551 u_int32_t addr;
1552 /*
1553 u_int32_t *ld;
1554 ld = xfer->recv.buf;
1555 kprintf("sbp %x %d %d %08x %08x %08x %08x\n",
1556 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1557 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1558 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1559 */
1560 sbp = (struct sbp_softc *)xfer->sc;
1561 if (xfer->resp != 0){
1562 kprintf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1563 goto done0;
1564 }
1565 if (xfer->recv.payload == NULL){
1566 kprintf("sbp_recv: xfer->recv.payload == NULL\n");
1567 goto done0;
1568 }
1569 rfp = &xfer->recv.hdr;
1570 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1571 kprintf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1572 goto done0;
1573 }
1574 sbp_status = (struct sbp_status *)xfer->recv.payload;
1575 addr = rfp->mode.wreqb.dest_lo;
1576 SBP_DEBUG(2)
1577 kprintf("received address 0x%x\n", addr);
1578 END_DEBUG
1579 t = SBP_ADDR2TRG(addr);
1580 if (t >= SBP_NUM_TARGETS) {
1581 device_printf(sbp->fd.dev,
1582 "sbp_recv1: invalid target %d\n", t);
1583 goto done0;
1584 }
1585 target = &sbp->targets[t];
1586 l = SBP_ADDR2LUN(addr);
1587 if (l >= target->num_lun || target->luns[l] == NULL) {
1588 device_printf(sbp->fd.dev,
1589 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1590 goto done0;
1591 }
1592 sdev = target->luns[l];
1593
1594 ocb = NULL;
1595 switch (sbp_status->src) {
1596 case 0:
1597 case 1:
1598 /* check mgm_ocb_cur first */
1599 ocb = target->mgm_ocb_cur;
1600 if (ocb != NULL) {
1601 if (OCB_MATCH(ocb, sbp_status)) {
1602 callout_stop(&target->mgm_ocb_timeout);
1603 target->mgm_ocb_cur = NULL;
1604 break;
1605 }
1606 }
1607 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1608 if (ocb == NULL) {
1609 sbp_show_sdev_info(sdev, 2);
1610 kprintf("No ocb(%x) on the queue\n",
1611 ntohl(sbp_status->orb_lo));
1612 }
1613 break;
1614 case 2:
1615 /* unsolicit */
1616 sbp_show_sdev_info(sdev, 2);
1617 kprintf("unsolicit status received\n");
1618 break;
1619 default:
1620 sbp_show_sdev_info(sdev, 2);
1621 kprintf("unknown sbp_status->src\n");
1622 }
1623
1624 status_valid0 = (sbp_status->src < 2
1625 && sbp_status->resp == ORB_RES_CMPL
1626 && sbp_status->dead == 0);
1627 status_valid = (status_valid0 && sbp_status->status == 0);
1628
1629 if (!status_valid0 || debug > 2){
1630 int status;
1631 SBP_DEBUG(0)
1632 sbp_show_sdev_info(sdev, 2);
1633 kprintf("ORB status src:%x resp:%x dead:%x"
1634 " len:%x stat:%x orb:%x%08x\n",
1635 sbp_status->src, sbp_status->resp, sbp_status->dead,
1636 sbp_status->len, sbp_status->status,
1637 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1638 END_DEBUG
1639 sbp_show_sdev_info(sdev, 2);
1640 status = sbp_status->status;
1641 switch(sbp_status->resp) {
1642 case 0:
1643 if (status > MAX_ORB_STATUS0)
1644 kprintf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1645 else
1646 kprintf("%s\n", orb_status0[status]);
1647 break;
1648 case 1:
1649 kprintf("Obj: %s, Error: %s\n",
1650 orb_status1_object[(status>>6) & 3],
1651 orb_status1_serial_bus_error[status & 0xf]);
1652 break;
1653 case 2:
1654 kprintf("Illegal request\n");
1655 break;
1656 case 3:
1657 kprintf("Vendor dependent\n");
1658 break;
1659 default:
1660 kprintf("unknown respose code %d\n", sbp_status->resp);
1661 }
1662 }
1663
1664 /* we have to reset the fetch agent if it's dead */
1665 if (sbp_status->dead) {
1666 if (sdev->path) {
1667 xpt_freeze_devq(sdev->path, 1);
1668 sdev->freeze ++;
1669 }
1670 reset_agent = 1;
1671 }
1672
1673 if (ocb == NULL)
1674 goto done;
1675
1676 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1677 case ORB_FMT_NOP:
1678 break;
1679 case ORB_FMT_VED:
1680 break;
1681 case ORB_FMT_STD:
1682 switch(ocb->flags) {
1683 case OCB_ACT_MGM:
1684 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1685 reset_agent = 0;
1686 switch(orb_fun) {
1687 case ORB_FUN_LGI:
1688 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1689 login_res = sdev->login;
1690 login_res->len = ntohs(login_res->len);
1691 login_res->id = ntohs(login_res->id);
1692 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1693 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1694 if (status_valid) {
1695 SBP_DEBUG(0)
1696 sbp_show_sdev_info(sdev, 2);
1697 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));
1698 END_DEBUG
1699 sbp_busy_timeout(sdev);
1700 } else {
1701 /* forgot logout? */
1702 sbp_show_sdev_info(sdev, 2);
1703 kprintf("login failed\n");
1704 sdev->status = SBP_DEV_RESET;
1705 }
1706 break;
1707 case ORB_FUN_RCN:
1708 login_res = sdev->login;
1709 if (status_valid) {
1710 SBP_DEBUG(0)
1711 sbp_show_sdev_info(sdev, 2);
1712 kprintf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
1713 END_DEBUG
1714 #if 1
1715 if (sdev->status == SBP_DEV_ATTACHED)
1716 sbp_scan_dev(sdev);
1717 else
1718 sbp_agent_reset(sdev);
1719 #else
1720 sdev->status = SBP_DEV_ATTACHED;
1721 sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
1722 #endif
1723 } else {
1724 /* reconnection hold time exceed? */
1725 SBP_DEBUG(0)
1726 sbp_show_sdev_info(sdev, 2);
1727 kprintf("reconnect failed\n");
1728 END_DEBUG
1729 sbp_login(sdev);
1730 }
1731 break;
1732 case ORB_FUN_LGO:
1733 sdev->status = SBP_DEV_RESET;
1734 break;
1735 case ORB_FUN_RST:
1736 sbp_busy_timeout(sdev);
1737 break;
1738 case ORB_FUN_LUR:
1739 case ORB_FUN_ATA:
1740 case ORB_FUN_ATS:
1741 sbp_agent_reset(sdev);
1742 break;
1743 default:
1744 sbp_show_sdev_info(sdev, 2);
1745 kprintf("unknown function %d\n", orb_fun);
1746 break;
1747 }
1748 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1749 break;
1750 case OCB_ACT_CMD:
1751 sdev->timeout = 0;
1752 if(ocb->ccb != NULL){
1753 union ccb *ccb;
1754 /*
1755 u_int32_t *ld;
1756 ld = ocb->ccb->csio.data_ptr;
1757 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
1758 kprintf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
1759 else
1760 kprintf("ptr NULL\n");
1761 kprintf("len %d\n", sbp_status->len);
1762 */
1763 ccb = ocb->ccb;
1764 if(sbp_status->len > 1){
1765 sbp_scsi_status(sbp_status, ocb);
1766 }else{
1767 if(sbp_status->resp != ORB_RES_CMPL){
1768 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1769 }else{
1770 ccb->ccb_h.status = CAM_REQ_CMP;
1771 }
1772 }
1773 /* fix up inq data */
1774 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1775 sbp_fix_inq_data(ocb);
1776 xpt_done(ccb);
1777 }
1778 break;
1779 default:
1780 break;
1781 }
1782 }
1783
1784 sbp_free_ocb(sdev, ocb);
1785 done:
1786 if (reset_agent)
1787 sbp_agent_reset(sdev);
1788
1789 done0:
1790 xfer->recv.pay_len = SBP_RECV_LEN;
1791 /* The received packet is usually small enough to be stored within
1792 * the buffer. In that case, the controller return ack_complete and
1793 * no respose is necessary.
1794 *
1795 * XXX fwohci.c and firewire.c should inform event_code such as
1796 * ack_complete or ack_pending to upper driver.
1797 */
1798 #if NEED_RESPONSE
1799 xfer->send.off = 0;
1800 sfp = (struct fw_pkt *)xfer->send.buf;
1801 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1802 xfer->dst = sfp->mode.wres.dst;
1803 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1804 xfer->act.hand = sbp_loginres_callback;
1805 xfer->retry_req = fw_asybusy;
1806
1807 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1808 sfp->mode.wres.tcode = FWTCODE_WRES;
1809 sfp->mode.wres.rtcode = 0;
1810 sfp->mode.wres.pri = 0;
1811
1812 fw_asyreq(xfer->fc, -1, xfer);
1813 #else
1814 /* recycle */
1815 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1816 #endif
1817
1818 return;
1819
1820 }
1821
1822 static void
1823 sbp_recv(struct fw_xfer *xfer)
1824 {
1825 crit_enter();
1826 sbp_recv1(xfer);
1827 crit_exit();
1828 }
1829 /*
1830 * sbp_attach()
1831 */
1832 static int
1833 sbp_attach(device_t dev)
1834 {
1835 struct sbp_softc *sbp;
1836 struct cam_devq *devq;
1837 struct fw_xfer *xfer;
1838 int i, error;
1839
1840 SBP_DEBUG(0)
1841 kprintf("sbp_attach (cold=%d)\n", cold);
1842 END_DEBUG
1843
1844 #if 0
1845 if (cold)
1846 sbp_cold ++;
1847 #endif
1848 sbp = ((struct sbp_softc *)device_get_softc(dev));
1849 bzero(sbp, sizeof(struct sbp_softc));
1850 sbp->fd.dev = dev;
1851 sbp->fd.fc = device_get_ivars(dev);
1852
1853 if (max_speed < 0)
1854 max_speed = sbp->fd.fc->speed;
1855
1856 error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat,
1857 /* XXX shoud be 4 for sane backend? */
1858 /*alignment*/1,
1859 /*boundary*/0,
1860 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1861 /*highaddr*/BUS_SPACE_MAXADDR,
1862 /*filter*/NULL, /*filterarg*/NULL,
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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 *
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 *
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, sbp_timeout, ocb);
2643
2644 if (prev != NULL) {
2645 SBP_DEBUG(2)
2646 kprintf("linking chain 0x%jx -> 0x%jx\n",
2647 (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
2648 END_DEBUG
2649 prev->orb[1] = htonl(ocb->bus_addr);
2650 prev->orb[0] = 0;
2651 }
2652 crit_exit();
2653
2654 return prev;
2655 }
2656
2657 static struct sbp_ocb *
2658 sbp_get_ocb(struct sbp_dev *sdev)
2659 {
2660 struct sbp_ocb *ocb;
2661
2662 crit_enter();
2663 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2664 if (ocb == NULL) {
2665 kprintf("ocb shortage!!!\n");
2666 crit_exit();
2667 return NULL;
2668 }
2669 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2670 crit_exit();
2671 ocb->ccb = NULL;
2672 return (ocb);
2673 }
2674
2675 static void
2676 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2677 {
2678 ocb->flags = 0;
2679 ocb->ccb = NULL;
2680 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2681 }
2682
2683 static void
2684 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2685 {
2686 struct sbp_dev *sdev;
2687
2688 sdev = ocb->sdev;
2689 SBP_DEBUG(0)
2690 sbp_show_sdev_info(sdev, 2);
2691 kprintf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
2692 END_DEBUG
2693 SBP_DEBUG(1)
2694 if (ocb->ccb != NULL)
2695 sbp_print_scsi_cmd(ocb);
2696 END_DEBUG
2697 if (ntohl(ocb->orb[4]) & 0xffff) {
2698 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2699 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2700 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2701 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2702 }
2703 if (ocb->ccb != NULL) {
2704 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2705 ocb->ccb->ccb_h.status = status;
2706 xpt_done(ocb->ccb);
2707 }
2708 sbp_free_ocb(sdev, ocb);
2709 }
2710
2711 static void
2712 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2713 {
2714 struct sbp_ocb *ocb, *next;
2715 STAILQ_HEAD(, sbp_ocb) temp;
2716
2717 crit_enter();
2718 STAILQ_INIT(&temp);
2719 STAILQ_CONCAT(&temp, &sdev->ocbs);
2720 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2721 next = STAILQ_NEXT(ocb, ocb);
2722 sbp_abort_ocb(ocb, status);
2723 }
2724 crit_exit();
2725 }
2726
2727 static devclass_t sbp_devclass;
2728
2729 /*
2730 * Because sbp is a static device that always exists under any attached
2731 * firewire device, and not scanned by the firewire device, we need an
2732 * identify function to install the device. For our sanity we want
2733 * the sbp device to have the same unit number as the fireweire device.
2734 */
2735
2736 static device_method_t sbp_methods[] = {
2737 /* device interface */
2738 DEVMETHOD(device_identify, bus_generic_identify_sameunit),
2739 DEVMETHOD(device_probe, sbp_probe),
2740 DEVMETHOD(device_attach, sbp_attach),
2741 DEVMETHOD(device_detach, sbp_detach),
2742 DEVMETHOD(device_shutdown, sbp_shutdown),
2743
2744 DEVMETHOD_END
2745 };
2746
2747 static driver_t sbp_driver = {
2748 "sbp",
2749 sbp_methods,
2750 sizeof(struct sbp_softc),
2751 };
2752
2753 DECLARE_DUMMY_MODULE(sbp);
2754 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, NULL, NULL);
2755 MODULE_VERSION(sbp, 1);
2756 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2757 MODULE_DEPEND(sbp, cam, 1, 1, 1);
DragonFly BSD