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 *
| 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: head/sys/dev/firewire/sbp.c 255871 2013-09-25 17:16:21Z scottl $
| 34 * $FreeBSD: head/sys/dev/firewire/sbp.c 257381 2013-10-30 14:04:47Z nwhitehorn $
|
35 *
36 */
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/module.h>
41#include <sys/bus.h>
42#include <sys/kernel.h>
43#include <sys/sysctl.h>
44#include <machine/bus.h>
45#include <sys/malloc.h>
46#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
47#include <sys/lock.h>
48#include <sys/mutex.h>
49#endif
50
51#if defined(__DragonFly__) || __FreeBSD_version < 500106
52#include <sys/devicestat.h> /* for struct devstat */
53#endif
54
55#ifdef __DragonFly__
56#include <bus/cam/cam.h>
57#include <bus/cam/cam_ccb.h>
58#include <bus/cam/cam_sim.h>
59#include <bus/cam/cam_xpt_sim.h>
60#include <bus/cam/cam_debug.h>
61#include <bus/cam/cam_periph.h>
62#include <bus/cam/scsi/scsi_all.h>
63
64#include <bus/firewire/firewire.h>
65#include <bus/firewire/firewirereg.h>
66#include <bus/firewire/fwdma.h>
67#include <bus/firewire/iec13213.h>
68#include "sbp.h"
69#else
70#include <cam/cam.h>
71#include <cam/cam_ccb.h>
72#include <cam/cam_sim.h>
73#include <cam/cam_xpt_sim.h>
74#include <cam/cam_debug.h>
75#include <cam/cam_periph.h>
76#include <cam/scsi/scsi_all.h>
77
78#include <dev/firewire/firewire.h>
79#include <dev/firewire/firewirereg.h>
80#include <dev/firewire/fwdma.h>
81#include <dev/firewire/iec13213.h>
82#include <dev/firewire/sbp.h>
83#endif
84
85#define ccb_sdev_ptr spriv_ptr0
86#define ccb_sbp_ptr spriv_ptr1
87
88#define SBP_NUM_TARGETS 8 /* MAX 64 */
89/*
90 * Scan_bus doesn't work for more than 8 LUNs
91 * because of CAM_SCSI2_MAXLUN in cam_xpt.c
92 */
93#define SBP_NUM_LUNS 64
94#define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */)
95#define SBP_DMA_SIZE PAGE_SIZE
96#define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
97#define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
98#define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
99
100/*
101 * STATUS FIFO addressing
102 * bit
103 * -----------------------
104 * 0- 1( 2): 0 (alignment)
105 * 2- 7( 6): target
106 * 8-15( 8): lun
107 * 16-31( 8): reserved
108 * 32-47(16): SBP_BIND_HI
109 * 48-64(16): bus_id, node_id
110 */
111#define SBP_BIND_HI 0x1
112#define SBP_DEV2ADDR(t, l) \
113 (((u_int64_t)SBP_BIND_HI << 32) \
114 | (((l) & 0xff) << 8) \
115 | (((t) & 0x3f) << 2))
116#define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
117#define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
118#define SBP_INITIATOR 7
119
120static char *orb_fun_name[] = {
121 ORB_FUN_NAMES
122};
123
124static int debug = 0;
125static int auto_login = 1;
126static int max_speed = -1;
127static int sbp_cold = 1;
128static int ex_login = 1;
129static int login_delay = 1000; /* msec */
130static int scan_delay = 500; /* msec */
131static int use_doorbell = 0;
132static int sbp_tags = 0;
133
134SYSCTL_DECL(_hw_firewire);
135static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0,
136 "SBP-II Subsystem");
137SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
138 "SBP debug flag");
139SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
140 "SBP perform login automatically");
141SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
142 "SBP transfer max speed");
143SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
144 &ex_login, 0, "SBP enable exclusive login");
145SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
146 &login_delay, 0, "SBP login delay in msec");
147SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
148 &scan_delay, 0, "SBP scan delay in msec");
149SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW,
150 &use_doorbell, 0, "SBP use doorbell request");
151SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
152 "SBP tagged queuing support");
153
154TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
155TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
156TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
157TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
158TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
159TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell);
160TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
161
162#define NEED_RESPONSE 0
163
164#define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
165#ifdef __sparc64__ /* iommu */
166#define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX)
167#else
168#define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
169#endif
170struct sbp_ocb {
171 STAILQ_ENTRY(sbp_ocb) ocb;
172 union ccb *ccb;
173 bus_addr_t bus_addr;
174 uint32_t orb[8];
175#define IND_PTR_OFFSET (8*sizeof(uint32_t))
176 struct ind_ptr ind_ptr[SBP_IND_MAX];
177 struct sbp_dev *sdev;
178 int flags; /* XXX should be removed */
179 bus_dmamap_t dmamap;
180 struct callout_handle timeout_ch;
181};
182
183#define OCB_ACT_MGM 0
184#define OCB_ACT_CMD 1
185#define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
186
187struct sbp_dev{
188#define SBP_DEV_RESET 0 /* accept login */
189#define SBP_DEV_LOGIN 1 /* to login */
190#if 0
191#define SBP_DEV_RECONN 2 /* to reconnect */
192#endif
193#define SBP_DEV_TOATTACH 3 /* to attach */
194#define SBP_DEV_PROBE 4 /* scan lun */
195#define SBP_DEV_ATTACHED 5 /* in operation */
196#define SBP_DEV_DEAD 6 /* unavailable unit */
197#define SBP_DEV_RETRY 7 /* unavailable unit */
198 uint8_t status:4,
199 timeout:4;
200 uint8_t type;
201 uint16_t lun_id;
202 uint16_t freeze;
203#define ORB_LINK_DEAD (1 << 0)
204#define VALID_LUN (1 << 1)
205#define ORB_POINTER_ACTIVE (1 << 2)
206#define ORB_POINTER_NEED (1 << 3)
207#define ORB_DOORBELL_ACTIVE (1 << 4)
208#define ORB_DOORBELL_NEED (1 << 5)
209#define ORB_SHORTAGE (1 << 6)
210 uint16_t flags;
211 struct cam_path *path;
212 struct sbp_target *target;
213 struct fwdma_alloc dma;
214 struct sbp_login_res *login;
215 struct callout login_callout;
216 struct sbp_ocb *ocb;
217 STAILQ_HEAD(, sbp_ocb) ocbs;
218 STAILQ_HEAD(, sbp_ocb) free_ocbs;
219 struct sbp_ocb *last_ocb;
220 char vendor[32];
221 char product[32];
222 char revision[10];
223 char bustgtlun[32];
224};
225
226struct sbp_target {
227 int target_id;
228 int num_lun;
229 struct sbp_dev **luns;
230 struct sbp_softc *sbp;
231 struct fw_device *fwdev;
232 uint32_t mgm_hi, mgm_lo;
233 struct sbp_ocb *mgm_ocb_cur;
234 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
235 struct callout mgm_ocb_timeout;
236 struct callout scan_callout;
237 STAILQ_HEAD(, fw_xfer) xferlist;
238 int n_xfer;
239};
240
241struct sbp_softc {
242 struct firewire_dev_comm fd;
243 struct cam_sim *sim;
244 struct cam_path *path;
245 struct sbp_target targets[SBP_NUM_TARGETS];
246 struct fw_bind fwb;
247 bus_dma_tag_t dmat;
248 struct timeval last_busreset;
249#define SIMQ_FREEZED 1
250 int flags;
251 struct mtx mtx;
252};
253#define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx)
254#define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx)
255
256static void sbp_post_explore (void *);
257static void sbp_recv (struct fw_xfer *);
258static void sbp_mgm_callback (struct fw_xfer *);
259#if 0
260static void sbp_cmd_callback (struct fw_xfer *);
261#endif
262static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
263static void sbp_doorbell(struct sbp_dev *);
264static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
265static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
266static void sbp_abort_ocb (struct sbp_ocb *, int);
267static void sbp_abort_all_ocbs (struct sbp_dev *, int);
268static struct fw_xfer * sbp_write_cmd_locked (struct sbp_dev *, int, int);
269static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
270static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
271static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
272static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
273static void sbp_cam_detach_sdev(struct sbp_dev *);
274static void sbp_free_sdev(struct sbp_dev *);
275static void sbp_cam_detach_target (struct sbp_target *);
276static void sbp_free_target (struct sbp_target *);
277static void sbp_mgm_timeout (void *arg);
278static void sbp_timeout (void *arg);
279static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
280
281static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
282
283/* cam related functions */
284static void sbp_action(struct cam_sim *sim, union ccb *ccb);
285static void sbp_poll(struct cam_sim *sim);
286static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
287static void sbp_cam_scan_target(void *arg);
288
289static char *orb_status0[] = {
290 /* 0 */ "No additional information to report",
291 /* 1 */ "Request type not supported",
292 /* 2 */ "Speed not supported",
293 /* 3 */ "Page size not supported",
294 /* 4 */ "Access denied",
295 /* 5 */ "Logical unit not supported",
296 /* 6 */ "Maximum payload too small",
297 /* 7 */ "Reserved for future standardization",
298 /* 8 */ "Resources unavailable",
299 /* 9 */ "Function rejected",
300 /* A */ "Login ID not recognized",
301 /* B */ "Dummy ORB completed",
302 /* C */ "Request aborted",
303 /* FF */ "Unspecified error"
304#define MAX_ORB_STATUS0 0xd
305};
306
307static char *orb_status1_object[] = {
308 /* 0 */ "Operation request block (ORB)",
309 /* 1 */ "Data buffer",
310 /* 2 */ "Page table",
311 /* 3 */ "Unable to specify"
312};
313
314static char *orb_status1_serial_bus_error[] = {
315 /* 0 */ "Missing acknowledge",
316 /* 1 */ "Reserved; not to be used",
317 /* 2 */ "Time-out error",
318 /* 3 */ "Reserved; not to be used",
319 /* 4 */ "Busy retry limit exceeded(X)",
320 /* 5 */ "Busy retry limit exceeded(A)",
321 /* 6 */ "Busy retry limit exceeded(B)",
322 /* 7 */ "Reserved for future standardization",
323 /* 8 */ "Reserved for future standardization",
324 /* 9 */ "Reserved for future standardization",
325 /* A */ "Reserved for future standardization",
326 /* B */ "Tardy retry limit exceeded",
327 /* C */ "Conflict error",
328 /* D */ "Data error",
329 /* E */ "Type error",
330 /* F */ "Address error"
331};
332
333static void
334sbp_identify(driver_t *driver, device_t parent)
335{
336SBP_DEBUG(0)
337 printf("sbp_identify\n");
338END_DEBUG
339
340 BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent));
341}
342
343/*
344 * sbp_probe()
345 */
346static int
347sbp_probe(device_t dev)
348{
349 device_t pa;
350
351SBP_DEBUG(0)
352 printf("sbp_probe\n");
353END_DEBUG
354
355 pa = device_get_parent(dev);
356 if(device_get_unit(dev) != device_get_unit(pa)){
357 return(ENXIO);
358 }
359
360 device_set_desc(dev, "SBP-2/SCSI over FireWire");
361
362#if 0
363 if (bootverbose)
364 debug = bootverbose;
365#endif
366
367 return (0);
368}
369
370/*
371 * Display device characteristics on the console
372 */
373static void
374sbp_show_sdev_info(struct sbp_dev *sdev)
375{
376 struct fw_device *fwdev;
377
378 fwdev = sdev->target->fwdev;
379 device_printf(sdev->target->sbp->fd.dev,
380 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d "
381 "speed:%d maxrec:%d\n",
382 __func__,
383 sdev->bustgtlun,
384 (sdev->type & 0x40) >> 6,
385 (sdev->type & 0x1f),
386 fwdev->eui.hi,
387 fwdev->eui.lo,
388 fwdev->dst,
389 fwdev->speed,
390 fwdev->maxrec);
391
392 device_printf(sdev->target->sbp->fd.dev,
393 "%s: %s '%s' '%s' '%s'\n",
394 __func__,
395 sdev->bustgtlun,
396 sdev->vendor,
397 sdev->product,
398 sdev->revision);
399}
400
401static struct {
402 int bus;
403 int target;
404 struct fw_eui64 eui;
405} wired[] = {
406 /* Bus Target EUI64 */
407#if 0
408 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
409 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
410 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
411#endif
412 {-1, -1, {0,0}}
413};
414
415static int
416sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
417{
418 int bus, i, target=-1;
419 char w[SBP_NUM_TARGETS];
420
421 bzero(w, sizeof(w));
422 bus = device_get_unit(sbp->fd.dev);
423
424 /* XXX wired-down configuration should be gotten from
425 tunable or device hint */
426 for (i = 0; wired[i].bus >= 0; i ++) {
427 if (wired[i].bus == bus) {
428 w[wired[i].target] = 1;
429 if (wired[i].eui.hi == fwdev->eui.hi &&
430 wired[i].eui.lo == fwdev->eui.lo)
431 target = wired[i].target;
432 }
433 }
434 if (target >= 0) {
435 if(target < SBP_NUM_TARGETS &&
436 sbp->targets[target].fwdev == NULL)
437 return(target);
438 device_printf(sbp->fd.dev,
439 "target %d is not free for %08x:%08x\n",
440 target, fwdev->eui.hi, fwdev->eui.lo);
441 target = -1;
442 }
443 /* non-wired target */
444 for (i = 0; i < SBP_NUM_TARGETS; i ++)
445 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
446 target = i;
447 break;
448 }
449
450 return target;
451}
452
453static void
454sbp_alloc_lun(struct sbp_target *target)
455{
456 struct crom_context cc;
457 struct csrreg *reg;
458 struct sbp_dev *sdev, **newluns;
459 struct sbp_softc *sbp;
460 int maxlun, lun, i;
461
462 sbp = target->sbp;
463 crom_init_context(&cc, target->fwdev->csrrom);
464 /* XXX shoud parse appropriate unit directories only */
465 maxlun = -1;
466 while (cc.depth >= 0) {
467 reg = crom_search_key(&cc, CROM_LUN);
468 if (reg == NULL)
469 break;
470 lun = reg->val & 0xffff;
471SBP_DEBUG(0)
472 printf("target %d lun %d found\n", target->target_id, lun);
473END_DEBUG
474 if (maxlun < lun)
475 maxlun = lun;
476 crom_next(&cc);
477 }
478 if (maxlun < 0)
479 printf("%s:%d no LUN found\n",
480 device_get_nameunit(target->sbp->fd.dev),
481 target->target_id);
482
483 maxlun ++;
484 if (maxlun >= SBP_NUM_LUNS)
485 maxlun = SBP_NUM_LUNS;
486
487 /* Invalidiate stale devices */
488 for (lun = 0; lun < target->num_lun; lun ++) {
489 sdev = target->luns[lun];
490 if (sdev == NULL)
491 continue;
492 sdev->flags &= ~VALID_LUN;
493 if (lun >= maxlun) {
494 /* lost device */
495 sbp_cam_detach_sdev(sdev);
496 sbp_free_sdev(sdev);
497 target->luns[lun] = NULL;
498 }
499 }
500
501 /* Reallocate */
502 if (maxlun != target->num_lun) {
503 newluns = (struct sbp_dev **) realloc(target->luns,
504 sizeof(struct sbp_dev *) * maxlun,
505 M_SBP, M_NOWAIT | M_ZERO);
506
507 if (newluns == NULL) {
508 printf("%s: realloc failed\n", __func__);
509 newluns = target->luns;
510 maxlun = target->num_lun;
511 }
512
513 /*
514 * We must zero the extended region for the case
515 * realloc() doesn't allocate new buffer.
516 */
517 if (maxlun > target->num_lun)
518 bzero(&newluns[target->num_lun],
519 sizeof(struct sbp_dev *) *
520 (maxlun - target->num_lun));
521
522 target->luns = newluns;
523 target->num_lun = maxlun;
524 }
525
526 crom_init_context(&cc, target->fwdev->csrrom);
527 while (cc.depth >= 0) {
528 int new = 0;
529
530 reg = crom_search_key(&cc, CROM_LUN);
531 if (reg == NULL)
532 break;
533 lun = reg->val & 0xffff;
534 if (lun >= SBP_NUM_LUNS) {
535 printf("too large lun %d\n", lun);
536 goto next;
537 }
538
539 sdev = target->luns[lun];
540 if (sdev == NULL) {
541 sdev = malloc(sizeof(struct sbp_dev),
542 M_SBP, M_NOWAIT | M_ZERO);
543 if (sdev == NULL) {
544 printf("%s: malloc failed\n", __func__);
545 goto next;
546 }
547 target->luns[lun] = sdev;
548 sdev->lun_id = lun;
549 sdev->target = target;
550 STAILQ_INIT(&sdev->ocbs);
551 CALLOUT_INIT(&sdev->login_callout);
552 sdev->status = SBP_DEV_RESET;
553 new = 1;
554 snprintf(sdev->bustgtlun, 32, "%s:%d:%d",
555 device_get_nameunit(sdev->target->sbp->fd.dev),
556 sdev->target->target_id,
557 sdev->lun_id);
558 }
559 sdev->flags |= VALID_LUN;
560 sdev->type = (reg->val & 0xff0000) >> 16;
561
562 if (new == 0)
563 goto next;
564
565 fwdma_malloc(sbp->fd.fc,
566 /* alignment */ sizeof(uint32_t),
567 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT |
568 BUS_DMA_COHERENT);
569 if (sdev->dma.v_addr == NULL) {
570 printf("%s: dma space allocation failed\n",
571 __func__);
572 free(sdev, M_SBP);
573 target->luns[lun] = NULL;
574 goto next;
575 }
576 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
577 sdev->ocb = (struct sbp_ocb *)
578 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
579 bzero((char *)sdev->ocb,
580 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
581
582 STAILQ_INIT(&sdev->free_ocbs);
583 for (i = 0; i < SBP_QUEUE_LEN; i++) {
584 struct sbp_ocb *ocb;
585 ocb = &sdev->ocb[i];
586 ocb->bus_addr = sdev->dma.bus_addr
587 + SBP_LOGIN_SIZE
588 + sizeof(struct sbp_ocb) * i
589 + offsetof(struct sbp_ocb, orb[0]);
590 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
591 printf("sbp_attach: cannot create dmamap\n");
592 /* XXX */
593 goto next;
594 }
595 callout_handle_init(&ocb->timeout_ch);
596 sbp_free_ocb(sdev, ocb);
597 }
598next:
599 crom_next(&cc);
600 }
601
602 for (lun = 0; lun < target->num_lun; lun ++) {
603 sdev = target->luns[lun];
604 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
605 sbp_cam_detach_sdev(sdev);
606 sbp_free_sdev(sdev);
607 target->luns[lun] = NULL;
608 }
609 }
610}
611
612static struct sbp_target *
613sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
614{
615 int i;
616 struct sbp_target *target;
617 struct crom_context cc;
618 struct csrreg *reg;
619
620SBP_DEBUG(1)
621 printf("sbp_alloc_target\n");
622END_DEBUG
623 i = sbp_new_target(sbp, fwdev);
624 if (i < 0) {
625 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
626 return NULL;
627 }
628 /* new target */
629 target = &sbp->targets[i];
630 target->sbp = sbp;
631 target->fwdev = fwdev;
632 target->target_id = i;
633 /* XXX we may want to reload mgm port after each bus reset */
634 /* XXX there might be multiple management agents */
635 crom_init_context(&cc, target->fwdev->csrrom);
636 reg = crom_search_key(&cc, CROM_MGM);
637 if (reg == NULL || reg->val == 0) {
638 printf("NULL management address\n");
639 target->fwdev = NULL;
640 return NULL;
641 }
642 target->mgm_hi = 0xffff;
643 target->mgm_lo = 0xf0000000 | (reg->val << 2);
644 target->mgm_ocb_cur = NULL;
645SBP_DEBUG(1)
646 printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
647END_DEBUG
648 STAILQ_INIT(&target->xferlist);
649 target->n_xfer = 0;
650 STAILQ_INIT(&target->mgm_ocb_queue);
651 CALLOUT_INIT(&target->mgm_ocb_timeout);
652 CALLOUT_INIT(&target->scan_callout);
653
654 target->luns = NULL;
655 target->num_lun = 0;
656 return target;
657}
658
659static void
660sbp_probe_lun(struct sbp_dev *sdev)
661{
662 struct fw_device *fwdev;
663 struct crom_context c, *cc = &c;
664 struct csrreg *reg;
665
666 bzero(sdev->vendor, sizeof(sdev->vendor));
667 bzero(sdev->product, sizeof(sdev->product));
668
669 fwdev = sdev->target->fwdev;
670 crom_init_context(cc, fwdev->csrrom);
671 /* get vendor string */
672 crom_search_key(cc, CSRKEY_VENDOR);
673 crom_next(cc);
674 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
675 /* skip to the unit directory for SBP-2 */
676 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
677 if (reg->val == CSRVAL_T10SBP2)
678 break;
679 crom_next(cc);
680 }
681 /* get firmware revision */
682 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
683 if (reg != NULL)
684 snprintf(sdev->revision, sizeof(sdev->revision),
685 "%06x", reg->val);
686 /* get product string */
687 crom_search_key(cc, CSRKEY_MODEL);
688 crom_next(cc);
689 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
690}
691
692static void
693sbp_login_callout(void *arg)
694{
695 struct sbp_dev *sdev = (struct sbp_dev *)arg;
696 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
697}
698
699static void
700sbp_login(struct sbp_dev *sdev)
701{
702 struct timeval delta;
703 struct timeval t;
704 int ticks = 0;
705
706 microtime(&delta);
707 timevalsub(&delta, &sdev->target->sbp->last_busreset);
708 t.tv_sec = login_delay / 1000;
709 t.tv_usec = (login_delay % 1000) * 1000;
710 timevalsub(&t, &delta);
711 if (t.tv_sec >= 0 && t.tv_usec > 0)
712 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
713SBP_DEBUG(0)
714 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__,
715 (intmax_t)t.tv_sec, t.tv_usec, ticks);
716END_DEBUG
717 callout_reset(&sdev->login_callout, ticks,
718 sbp_login_callout, (void *)(sdev));
719}
720
721#define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
722 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
723
724static void
725sbp_probe_target(void *arg)
726{
727 struct sbp_target *target = (struct sbp_target *)arg;
728 struct sbp_softc *sbp = target->sbp;
729 struct sbp_dev *sdev;
730 int i, alive;
731
732 alive = SBP_FWDEV_ALIVE(target->fwdev);
733SBP_DEBUG(1)
734 device_printf(sbp->fd.dev, "%s %d%salive\n",
735 __func__, target->target_id,
736 (!alive) ? " not " : "");
737END_DEBUG
738
739 sbp = target->sbp;
740 sbp_alloc_lun(target);
741
742 /* XXX untimeout mgm_ocb and dequeue */
743 for (i=0; i < target->num_lun; i++) {
744 sdev = target->luns[i];
745 if (sdev == NULL)
746 continue;
747 if (alive && (sdev->status != SBP_DEV_DEAD)) {
748 if (sdev->path != NULL) {
749 SBP_LOCK(sbp);
750 xpt_freeze_devq(sdev->path, 1);
751 sdev->freeze ++;
752 SBP_UNLOCK(sbp);
753 }
754 sbp_probe_lun(sdev);
755 sbp_show_sdev_info(sdev);
756
757 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
758 switch (sdev->status) {
759 case SBP_DEV_RESET:
760 /* new or revived target */
761 if (auto_login)
762 sbp_login(sdev);
763 break;
764 case SBP_DEV_TOATTACH:
765 case SBP_DEV_PROBE:
766 case SBP_DEV_ATTACHED:
767 case SBP_DEV_RETRY:
768 default:
769 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
770 break;
771 }
772 } else {
773 switch (sdev->status) {
774 case SBP_DEV_ATTACHED:
775SBP_DEBUG(0)
776 /* the device has gone */
777 device_printf(sbp->fd.dev, "%s: lost target\n",
778 __func__);
779END_DEBUG
780 if (sdev->path) {
781 SBP_LOCK(sbp);
782 xpt_freeze_devq(sdev->path, 1);
783 sdev->freeze ++;
784 SBP_UNLOCK(sbp);
785 }
786 sdev->status = SBP_DEV_RETRY;
787 sbp_cam_detach_sdev(sdev);
788 sbp_free_sdev(sdev);
789 target->luns[i] = NULL;
790 break;
791 case SBP_DEV_PROBE:
792 case SBP_DEV_TOATTACH:
793 sdev->status = SBP_DEV_RESET;
794 break;
795 case SBP_DEV_RETRY:
796 case SBP_DEV_RESET:
797 case SBP_DEV_DEAD:
798 break;
799 }
800 }
801 }
802}
803
804static void
805sbp_post_busreset(void *arg)
806{
807 struct sbp_softc *sbp;
808
809 sbp = (struct sbp_softc *)arg;
810SBP_DEBUG(0)
811 printf("sbp_post_busreset\n");
812END_DEBUG
813 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
814 SBP_LOCK(sbp);
815 xpt_freeze_simq(sbp->sim, /*count*/1);
816 sbp->sim->flags |= SIMQ_FREEZED;
817 SBP_UNLOCK(sbp);
818 }
819 microtime(&sbp->last_busreset);
820}
821
822static void
823sbp_post_explore(void *arg)
824{
825 struct sbp_softc *sbp = (struct sbp_softc *)arg;
826 struct sbp_target *target;
827 struct fw_device *fwdev;
828 int i, alive;
829
830SBP_DEBUG(0)
831 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
832END_DEBUG
833 /* We need physical access */
834 if (!firewire_phydma_enable)
835 return;
836
837 if (sbp_cold > 0)
838 sbp_cold --;
839
840#if 0
841 /*
842 * XXX don't let CAM the bus rest.
843 * CAM tries to do something with freezed (DEV_RETRY) devices.
844 */
845 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
846#endif
847
848 /* Garbage Collection */
849 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
850 target = &sbp->targets[i];
851 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
852 if (target->fwdev == NULL || target->fwdev == fwdev)
853 break;
854 if (fwdev == NULL) {
855 /* device has removed in lower driver */
856 sbp_cam_detach_target(target);
857 sbp_free_target(target);
858 }
859 }
860 /* traverse device list */
861 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
862SBP_DEBUG(0)
863 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n",
864 __func__, fwdev->eui.hi, fwdev->eui.lo,
865 (fwdev->status != FWDEVATTACHED) ? "not" : "",
866 fwdev->status);
867END_DEBUG
868 alive = SBP_FWDEV_ALIVE(fwdev);
869 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
870 target = &sbp->targets[i];
871 if(target->fwdev == fwdev ) {
872 /* known target */
873 break;
874 }
875 }
876 if(i == SBP_NUM_TARGETS){
877 if (alive) {
878 /* new target */
879 target = sbp_alloc_target(sbp, fwdev);
880 if (target == NULL)
881 continue;
882 } else {
883 continue;
884 }
885 }
886 sbp_probe_target((void *)target);
887 if (target->num_lun == 0)
888 sbp_free_target(target);
889 }
890 SBP_LOCK(sbp);
891 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
892 sbp->sim->flags &= ~SIMQ_FREEZED;
893 SBP_UNLOCK(sbp);
894}
895
896#if NEED_RESPONSE
897static void
898sbp_loginres_callback(struct fw_xfer *xfer){
899 int s;
900 struct sbp_dev *sdev;
901 sdev = (struct sbp_dev *)xfer->sc;
902SBP_DEBUG(1)
903 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__);
904END_DEBUG
905 /* recycle */
906 s = splfw();
907 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
908 splx(s);
909 return;
910}
911#endif
912
913static __inline void
914sbp_xfer_free(struct fw_xfer *xfer)
915{
916 struct sbp_dev *sdev;
917 int s;
918
919 sdev = (struct sbp_dev *)xfer->sc;
920 fw_xfer_unload(xfer);
921 s = splfw();
922 SBP_LOCK(sdev->target->sbp);
923 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
924 SBP_UNLOCK(sdev->target->sbp);
925 splx(s);
926}
927
928static void
929sbp_reset_start_callback(struct fw_xfer *xfer)
930{
931 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
932 struct sbp_target *target = sdev->target;
933 int i;
934
935 if (xfer->resp != 0) {
936 device_printf(sdev->target->sbp->fd.dev,
937 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
938 }
939
940 for (i = 0; i < target->num_lun; i++) {
941 tsdev = target->luns[i];
942 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
943 sbp_login(tsdev);
944 }
945}
946
947static void
948sbp_reset_start(struct sbp_dev *sdev)
949{
950 struct fw_xfer *xfer;
951 struct fw_pkt *fp;
952
953SBP_DEBUG(0)
954 device_printf(sdev->target->sbp->fd.dev,
955 "%s:%s\n", __func__,sdev->bustgtlun);
956END_DEBUG
957
958 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
959 xfer->hand = sbp_reset_start_callback;
960 fp = &xfer->send.hdr;
961 fp->mode.wreqq.dest_hi = 0xffff;
962 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
963 fp->mode.wreqq.data = htonl(0xf);
964 fw_asyreq(xfer->fc, -1, xfer);
965}
966
967static void
968sbp_mgm_callback(struct fw_xfer *xfer)
969{
970 struct sbp_dev *sdev;
971 int resp;
972
973 sdev = (struct sbp_dev *)xfer->sc;
974
975SBP_DEBUG(1)
976 device_printf(sdev->target->sbp->fd.dev,
977 "%s:%s\n", __func__, sdev->bustgtlun);
978END_DEBUG
979 resp = xfer->resp;
980 sbp_xfer_free(xfer);
981 return;
982}
983
984static struct sbp_dev *
985sbp_next_dev(struct sbp_target *target, int lun)
986{
987 struct sbp_dev **sdevp;
988 int i;
989
990 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
991 i++, sdevp++)
992 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
993 return(*sdevp);
994 return(NULL);
995}
996
997#define SCAN_PRI 1
998static void
999sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
1000{
1001 struct sbp_target *target;
1002 struct sbp_dev *sdev;
1003
1004 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
1005 target = sdev->target;
1006SBP_DEBUG(0)
1007 device_printf(sdev->target->sbp->fd.dev,
1008 "%s:%s\n", __func__, sdev->bustgtlun);
1009END_DEBUG
1010 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1011 sdev->status = SBP_DEV_ATTACHED;
1012 } else {
1013 device_printf(sdev->target->sbp->fd.dev,
1014 "%s:%s failed\n", __func__, sdev->bustgtlun);
1015 }
1016 sdev = sbp_next_dev(target, sdev->lun_id + 1);
1017 if (sdev == NULL) {
1018 free(ccb, M_SBP);
1019 return;
1020 }
1021 /* reuse ccb */
1022 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1023 ccb->ccb_h.ccb_sdev_ptr = sdev;
1024 xpt_action(ccb);
1025 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1026 sdev->freeze = 1;
1027}
1028
1029static void
1030sbp_cam_scan_target(void *arg)
1031{
1032 struct sbp_target *target = (struct sbp_target *)arg;
1033 struct sbp_dev *sdev;
1034 union ccb *ccb;
1035
1036 sdev = sbp_next_dev(target, 0);
1037 if (sdev == NULL) {
1038 printf("sbp_cam_scan_target: nothing to do for target%d\n",
1039 target->target_id);
1040 return;
1041 }
1042SBP_DEBUG(0)
1043 device_printf(sdev->target->sbp->fd.dev,
1044 "%s:%s\n", __func__, sdev->bustgtlun);
1045END_DEBUG
1046 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
1047 if (ccb == NULL) {
1048 printf("sbp_cam_scan_target: malloc failed\n");
1049 return;
1050 }
1051 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1052 ccb->ccb_h.func_code = XPT_SCAN_LUN;
1053 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1054 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1055 ccb->crcn.flags = CAM_FLAG_NONE;
1056 ccb->ccb_h.ccb_sdev_ptr = sdev;
1057
1058 /* The scan is in progress now. */
1059 SBP_LOCK(target->sbp);
1060 xpt_action(ccb);
1061 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1062 sdev->freeze = 1;
1063 SBP_UNLOCK(target->sbp);
1064}
1065
1066static __inline void
1067sbp_scan_dev(struct sbp_dev *sdev)
1068{
1069 sdev->status = SBP_DEV_PROBE;
1070 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1071 sbp_cam_scan_target, (void *)sdev->target);
1072}
1073
1074static void
1075sbp_do_attach(struct fw_xfer *xfer)
1076{
1077 struct sbp_dev *sdev;
1078 struct sbp_target *target;
1079 struct sbp_softc *sbp;
1080
1081 sdev = (struct sbp_dev *)xfer->sc;
1082 target = sdev->target;
1083 sbp = target->sbp;
1084SBP_DEBUG(0)
1085 device_printf(sdev->target->sbp->fd.dev,
1086 "%s:%s\n", __func__, sdev->bustgtlun);
1087END_DEBUG
1088 sbp_xfer_free(xfer);
1089
1090 if (sdev->path == NULL)
1091 xpt_create_path(&sdev->path, NULL,
1092 cam_sim_path(target->sbp->sim),
1093 target->target_id, sdev->lun_id);
1094
1095 /*
1096 * Let CAM scan the bus if we are in the boot process.
1097 * XXX xpt_scan_bus cannot detect LUN larger than 0
1098 * if LUN 0 doesn't exists.
1099 */
1100 if (sbp_cold > 0) {
1101 sdev->status = SBP_DEV_ATTACHED;
1102 return;
1103 }
1104
1105 sbp_scan_dev(sdev);
1106 return;
1107}
1108
1109static void
1110sbp_agent_reset_callback(struct fw_xfer *xfer)
1111{
1112 struct sbp_dev *sdev;
1113
1114 sdev = (struct sbp_dev *)xfer->sc;
1115SBP_DEBUG(1)
1116 device_printf(sdev->target->sbp->fd.dev,
1117 "%s:%s\n", __func__, sdev->bustgtlun);
1118END_DEBUG
1119 if (xfer->resp != 0) {
1120 device_printf(sdev->target->sbp->fd.dev,
1121 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
1122 }
1123
1124 sbp_xfer_free(xfer);
1125 if (sdev->path) {
1126 SBP_LOCK(sdev->target->sbp);
1127 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1128 sdev->freeze = 0;
1129 SBP_UNLOCK(sdev->target->sbp);
1130 }
1131}
1132
1133static void
1134sbp_agent_reset(struct sbp_dev *sdev)
1135{
1136 struct fw_xfer *xfer;
1137 struct fw_pkt *fp;
1138
1139SBP_DEBUG(0)
1140 device_printf(sdev->target->sbp->fd.dev,
1141 "%s:%s\n", __func__, sdev->bustgtlun);
1142END_DEBUG
1143 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1144 if (xfer == NULL)
1145 return;
1146 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1147 xfer->hand = sbp_agent_reset_callback;
1148 else
1149 xfer->hand = sbp_do_attach;
1150 fp = &xfer->send.hdr;
1151 fp->mode.wreqq.data = htonl(0xf);
1152 fw_asyreq(xfer->fc, -1, xfer);
1153 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1154}
1155
1156static void
1157sbp_busy_timeout_callback(struct fw_xfer *xfer)
1158{
1159 struct sbp_dev *sdev;
1160
1161 sdev = (struct sbp_dev *)xfer->sc;
1162SBP_DEBUG(1)
1163 device_printf(sdev->target->sbp->fd.dev,
1164 "%s:%s\n", __func__, sdev->bustgtlun);
1165END_DEBUG
1166 sbp_xfer_free(xfer);
1167 sbp_agent_reset(sdev);
1168}
1169
1170static void
1171sbp_busy_timeout(struct sbp_dev *sdev)
1172{
1173 struct fw_pkt *fp;
1174 struct fw_xfer *xfer;
1175SBP_DEBUG(0)
1176 device_printf(sdev->target->sbp->fd.dev,
1177 "%s:%s\n", __func__, sdev->bustgtlun);
1178END_DEBUG
1179 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1180
1181 xfer->hand = sbp_busy_timeout_callback;
1182 fp = &xfer->send.hdr;
1183 fp->mode.wreqq.dest_hi = 0xffff;
1184 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1185 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1186 fw_asyreq(xfer->fc, -1, xfer);
1187}
1188
1189static void
1190sbp_orb_pointer_callback(struct fw_xfer *xfer)
1191{
1192 struct sbp_dev *sdev;
1193 sdev = (struct sbp_dev *)xfer->sc;
1194
1195SBP_DEBUG(2)
1196 device_printf(sdev->target->sbp->fd.dev,
1197 "%s:%s\n", __func__, sdev->bustgtlun);
1198END_DEBUG
1199 if (xfer->resp != 0) {
1200 /* XXX */
1201 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1202 }
1203 sbp_xfer_free(xfer);
1204
1205 SBP_LOCK(sdev->target->sbp);
1206 sdev->flags &= ~ORB_POINTER_ACTIVE;
1207
1208 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1209 struct sbp_ocb *ocb;
1210
1211 sdev->flags &= ~ORB_POINTER_NEED;
1212 ocb = STAILQ_FIRST(&sdev->ocbs);
1213 if (ocb != NULL)
1214 sbp_orb_pointer(sdev, ocb);
1215 }
1216 SBP_UNLOCK(sdev->target->sbp);
1217 return;
1218}
1219
1220static void
1221sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1222{
1223 struct fw_xfer *xfer;
1224 struct fw_pkt *fp;
1225SBP_DEBUG(1)
1226 device_printf(sdev->target->sbp->fd.dev,
1227 "%s:%s 0x%08x\n",
1228 __func__, sdev->bustgtlun,
1229 (uint32_t)ocb->bus_addr);
1230END_DEBUG
1231
1232 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1233
1234 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1235SBP_DEBUG(0)
1236 printf("%s: orb pointer active\n", __func__);
1237END_DEBUG
1238 sdev->flags |= ORB_POINTER_NEED;
1239 return;
1240 }
1241
1242 sdev->flags |= ORB_POINTER_ACTIVE;
1243 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQB, 0x08);
1244 if (xfer == NULL)
1245 return;
1246 xfer->hand = sbp_orb_pointer_callback;
1247
1248 fp = &xfer->send.hdr;
1249 fp->mode.wreqb.len = 8;
1250 fp->mode.wreqb.extcode = 0;
1251 xfer->send.payload[0] =
1252 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1253 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
1254
1255 /*
1256 * sbp_xfer_free() will attempt to acquire
1257 * the SBP lock on entrance. Also, this removes
1258 * a LOR between the firewire layer and sbp
1259 */
1260 SBP_UNLOCK(sdev->target->sbp);
1261 if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1262 sbp_xfer_free(xfer);
1263 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1264 xpt_done(ocb->ccb);
1265 }
1266 SBP_LOCK(sdev->target->sbp);
1267}
1268
1269static void
1270sbp_doorbell_callback(struct fw_xfer *xfer)
1271{
1272 struct sbp_dev *sdev;
1273 sdev = (struct sbp_dev *)xfer->sc;
1274
1275SBP_DEBUG(1)
1276 device_printf(sdev->target->sbp->fd.dev,
1277 "%s:%s\n", __func__, sdev->bustgtlun);
1278END_DEBUG
1279 if (xfer->resp != 0) {
1280 /* XXX */
1281 device_printf(sdev->target->sbp->fd.dev,
1282 "%s: xfer->resp = %d\n", __func__, xfer->resp);
1283 }
1284 sbp_xfer_free(xfer);
1285 sdev->flags &= ~ORB_DOORBELL_ACTIVE;
1286 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
1287 sdev->flags &= ~ORB_DOORBELL_NEED;
1288 SBP_LOCK(sdev->target->sbp);
1289 sbp_doorbell(sdev);
1290 SBP_UNLOCK(sdev->target->sbp);
1291 }
1292 return;
1293}
1294
1295static void
1296sbp_doorbell(struct sbp_dev *sdev)
1297{
1298 struct fw_xfer *xfer;
1299 struct fw_pkt *fp;
1300SBP_DEBUG(1)
1301 device_printf(sdev->target->sbp->fd.dev,
1302 "%s:%s\n", __func__, sdev->bustgtlun);
1303END_DEBUG
1304
1305 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
1306 sdev->flags |= ORB_DOORBELL_NEED;
1307 return;
1308 }
1309 sdev->flags |= ORB_DOORBELL_ACTIVE;
1310 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQQ, 0x10);
1311 if (xfer == NULL)
1312 return;
1313 xfer->hand = sbp_doorbell_callback;
1314 fp = &xfer->send.hdr;
1315 fp->mode.wreqq.data = htonl(0xf);
1316 fw_asyreq(xfer->fc, -1, xfer);
1317}
1318
1319static struct fw_xfer *
1320sbp_write_cmd_locked(struct sbp_dev *sdev, int tcode, int offset)
1321{
1322 struct fw_xfer *xfer;
1323 struct fw_pkt *fp;
1324 struct sbp_target *target;
1325 int s, new = 0;
1326
1327 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1328
1329 target = sdev->target;
1330 s = splfw();
1331 xfer = STAILQ_FIRST(&target->xferlist);
1332 if (xfer == NULL) {
1333 if (target->n_xfer > 5 /* XXX */) {
1334 printf("sbp: no more xfer for this target\n");
1335 splx(s);
1336 return(NULL);
1337 }
1338 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1339 if(xfer == NULL){
1340 printf("sbp: fw_xfer_alloc_buf failed\n");
1341 splx(s);
1342 return NULL;
1343 }
1344 target->n_xfer ++;
1345 if (debug)
1346 printf("sbp: alloc %d xfer\n", target->n_xfer);
1347 new = 1;
1348 } else {
1349 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1350 }
1351 splx(s);
1352
1353 if (new) {
1354 xfer->recv.pay_len = 0;
1355 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1356 xfer->fc = sdev->target->sbp->fd.fc;
1357 }
1358
1359 if (tcode == FWTCODE_WREQB)
1360 xfer->send.pay_len = 8;
1361 else
1362 xfer->send.pay_len = 0;
1363
1364 xfer->sc = (caddr_t)sdev;
1365 fp = &xfer->send.hdr;
1366 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1367 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1368 fp->mode.wreqq.tlrt = 0;
1369 fp->mode.wreqq.tcode = tcode;
1370 fp->mode.wreqq.pri = 0;
1371 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1372
1373 return xfer;
1374
1375}
1376
1377static struct fw_xfer *
1378sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1379{
1380 struct sbp_softc *sbp = sdev->target->sbp;
1381 struct fw_xfer *xfer;
1382
1383 SBP_LOCK(sbp);
1384 xfer = sbp_write_cmd_locked(sdev, tcode, offset);
1385 SBP_UNLOCK(sbp);
1386
1387 return (xfer);
1388}
1389
1390static void
1391sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1392{
1393 struct fw_xfer *xfer;
1394 struct fw_pkt *fp;
1395 struct sbp_ocb *ocb;
1396 struct sbp_target *target;
1397 int s, nid;
1398
1399 target = sdev->target;
1400 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1401
1402 s = splfw();
1403 SBP_LOCK(target->sbp);
1404 if (func == ORB_FUN_RUNQUEUE) {
1405 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1406 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1407 SBP_UNLOCK(target->sbp);
1408 splx(s);
1409 return;
1410 }
1411 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1412 SBP_UNLOCK(target->sbp);
1413 goto start;
1414 }
1415 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1416 SBP_UNLOCK(target->sbp);
1417 splx(s);
1418 /* XXX */
1419 return;
1420 }
1421 SBP_UNLOCK(target->sbp);
1422 ocb->flags = OCB_ACT_MGM;
1423 ocb->sdev = sdev;
1424
1425 bzero((void *)ocb->orb, sizeof(ocb->orb));
1426 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1427 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1428
1429SBP_DEBUG(0)
1430 device_printf(sdev->target->sbp->fd.dev,
1431 "%s:%s %s\n",
1432 __func__,sdev->bustgtlun,
1433 orb_fun_name[(func>>16)&0xf]);
1434END_DEBUG
1435 switch (func) {
1436 case ORB_FUN_LGI:
1437 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1438 ocb->orb[2] = htonl(nid << 16);
1439 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1440 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1441 if (ex_login)
1442 ocb->orb[4] |= htonl(ORB_EXV);
1443 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1444 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1445 break;
1446 case ORB_FUN_ATA:
1447 ocb->orb[0] = htonl((0 << 16) | 0);
1448 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1449 /* fall through */
1450 case ORB_FUN_RCN:
1451 case ORB_FUN_LGO:
1452 case ORB_FUN_LUR:
1453 case ORB_FUN_RST:
1454 case ORB_FUN_ATS:
1455 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1456 break;
1457 }
1458
1459 if (target->mgm_ocb_cur != NULL) {
1460 /* there is a standing ORB */
1461 SBP_LOCK(target->sbp);
1462 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1463 SBP_UNLOCK(target->sbp);
1464 splx(s);
1465 return;
1466 }
1467start:
1468 target->mgm_ocb_cur = ocb;
1469 splx(s);
1470
1471 callout_reset(&target->mgm_ocb_timeout, 5*hz,
1472 sbp_mgm_timeout, (caddr_t)ocb);
1473 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1474 if(xfer == NULL){
1475 return;
1476 }
1477 xfer->hand = sbp_mgm_callback;
1478
1479 fp = &xfer->send.hdr;
1480 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1481 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1482 fp->mode.wreqb.len = 8;
1483 fp->mode.wreqb.extcode = 0;
1484 xfer->send.payload[0] = htonl(nid << 16);
1485 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1486
1487 fw_asyreq(xfer->fc, -1, xfer);
1488}
1489
1490static void
1491sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1492{
1493 struct ccb_scsiio *csio;
1494
1495 csio = &ocb->ccb->csio;
| 35 *
36 */
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/module.h>
41#include <sys/bus.h>
42#include <sys/kernel.h>
43#include <sys/sysctl.h>
44#include <machine/bus.h>
45#include <sys/malloc.h>
46#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
47#include <sys/lock.h>
48#include <sys/mutex.h>
49#endif
50
51#if defined(__DragonFly__) || __FreeBSD_version < 500106
52#include <sys/devicestat.h> /* for struct devstat */
53#endif
54
55#ifdef __DragonFly__
56#include <bus/cam/cam.h>
57#include <bus/cam/cam_ccb.h>
58#include <bus/cam/cam_sim.h>
59#include <bus/cam/cam_xpt_sim.h>
60#include <bus/cam/cam_debug.h>
61#include <bus/cam/cam_periph.h>
62#include <bus/cam/scsi/scsi_all.h>
63
64#include <bus/firewire/firewire.h>
65#include <bus/firewire/firewirereg.h>
66#include <bus/firewire/fwdma.h>
67#include <bus/firewire/iec13213.h>
68#include "sbp.h"
69#else
70#include <cam/cam.h>
71#include <cam/cam_ccb.h>
72#include <cam/cam_sim.h>
73#include <cam/cam_xpt_sim.h>
74#include <cam/cam_debug.h>
75#include <cam/cam_periph.h>
76#include <cam/scsi/scsi_all.h>
77
78#include <dev/firewire/firewire.h>
79#include <dev/firewire/firewirereg.h>
80#include <dev/firewire/fwdma.h>
81#include <dev/firewire/iec13213.h>
82#include <dev/firewire/sbp.h>
83#endif
84
85#define ccb_sdev_ptr spriv_ptr0
86#define ccb_sbp_ptr spriv_ptr1
87
88#define SBP_NUM_TARGETS 8 /* MAX 64 */
89/*
90 * Scan_bus doesn't work for more than 8 LUNs
91 * because of CAM_SCSI2_MAXLUN in cam_xpt.c
92 */
93#define SBP_NUM_LUNS 64
94#define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */)
95#define SBP_DMA_SIZE PAGE_SIZE
96#define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
97#define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
98#define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
99
100/*
101 * STATUS FIFO addressing
102 * bit
103 * -----------------------
104 * 0- 1( 2): 0 (alignment)
105 * 2- 7( 6): target
106 * 8-15( 8): lun
107 * 16-31( 8): reserved
108 * 32-47(16): SBP_BIND_HI
109 * 48-64(16): bus_id, node_id
110 */
111#define SBP_BIND_HI 0x1
112#define SBP_DEV2ADDR(t, l) \
113 (((u_int64_t)SBP_BIND_HI << 32) \
114 | (((l) & 0xff) << 8) \
115 | (((t) & 0x3f) << 2))
116#define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
117#define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
118#define SBP_INITIATOR 7
119
120static char *orb_fun_name[] = {
121 ORB_FUN_NAMES
122};
123
124static int debug = 0;
125static int auto_login = 1;
126static int max_speed = -1;
127static int sbp_cold = 1;
128static int ex_login = 1;
129static int login_delay = 1000; /* msec */
130static int scan_delay = 500; /* msec */
131static int use_doorbell = 0;
132static int sbp_tags = 0;
133
134SYSCTL_DECL(_hw_firewire);
135static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0,
136 "SBP-II Subsystem");
137SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
138 "SBP debug flag");
139SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
140 "SBP perform login automatically");
141SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
142 "SBP transfer max speed");
143SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
144 &ex_login, 0, "SBP enable exclusive login");
145SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
146 &login_delay, 0, "SBP login delay in msec");
147SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
148 &scan_delay, 0, "SBP scan delay in msec");
149SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW,
150 &use_doorbell, 0, "SBP use doorbell request");
151SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
152 "SBP tagged queuing support");
153
154TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
155TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
156TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
157TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
158TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
159TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell);
160TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
161
162#define NEED_RESPONSE 0
163
164#define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
165#ifdef __sparc64__ /* iommu */
166#define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX)
167#else
168#define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
169#endif
170struct sbp_ocb {
171 STAILQ_ENTRY(sbp_ocb) ocb;
172 union ccb *ccb;
173 bus_addr_t bus_addr;
174 uint32_t orb[8];
175#define IND_PTR_OFFSET (8*sizeof(uint32_t))
176 struct ind_ptr ind_ptr[SBP_IND_MAX];
177 struct sbp_dev *sdev;
178 int flags; /* XXX should be removed */
179 bus_dmamap_t dmamap;
180 struct callout_handle timeout_ch;
181};
182
183#define OCB_ACT_MGM 0
184#define OCB_ACT_CMD 1
185#define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
186
187struct sbp_dev{
188#define SBP_DEV_RESET 0 /* accept login */
189#define SBP_DEV_LOGIN 1 /* to login */
190#if 0
191#define SBP_DEV_RECONN 2 /* to reconnect */
192#endif
193#define SBP_DEV_TOATTACH 3 /* to attach */
194#define SBP_DEV_PROBE 4 /* scan lun */
195#define SBP_DEV_ATTACHED 5 /* in operation */
196#define SBP_DEV_DEAD 6 /* unavailable unit */
197#define SBP_DEV_RETRY 7 /* unavailable unit */
198 uint8_t status:4,
199 timeout:4;
200 uint8_t type;
201 uint16_t lun_id;
202 uint16_t freeze;
203#define ORB_LINK_DEAD (1 << 0)
204#define VALID_LUN (1 << 1)
205#define ORB_POINTER_ACTIVE (1 << 2)
206#define ORB_POINTER_NEED (1 << 3)
207#define ORB_DOORBELL_ACTIVE (1 << 4)
208#define ORB_DOORBELL_NEED (1 << 5)
209#define ORB_SHORTAGE (1 << 6)
210 uint16_t flags;
211 struct cam_path *path;
212 struct sbp_target *target;
213 struct fwdma_alloc dma;
214 struct sbp_login_res *login;
215 struct callout login_callout;
216 struct sbp_ocb *ocb;
217 STAILQ_HEAD(, sbp_ocb) ocbs;
218 STAILQ_HEAD(, sbp_ocb) free_ocbs;
219 struct sbp_ocb *last_ocb;
220 char vendor[32];
221 char product[32];
222 char revision[10];
223 char bustgtlun[32];
224};
225
226struct sbp_target {
227 int target_id;
228 int num_lun;
229 struct sbp_dev **luns;
230 struct sbp_softc *sbp;
231 struct fw_device *fwdev;
232 uint32_t mgm_hi, mgm_lo;
233 struct sbp_ocb *mgm_ocb_cur;
234 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
235 struct callout mgm_ocb_timeout;
236 struct callout scan_callout;
237 STAILQ_HEAD(, fw_xfer) xferlist;
238 int n_xfer;
239};
240
241struct sbp_softc {
242 struct firewire_dev_comm fd;
243 struct cam_sim *sim;
244 struct cam_path *path;
245 struct sbp_target targets[SBP_NUM_TARGETS];
246 struct fw_bind fwb;
247 bus_dma_tag_t dmat;
248 struct timeval last_busreset;
249#define SIMQ_FREEZED 1
250 int flags;
251 struct mtx mtx;
252};
253#define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx)
254#define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx)
255
256static void sbp_post_explore (void *);
257static void sbp_recv (struct fw_xfer *);
258static void sbp_mgm_callback (struct fw_xfer *);
259#if 0
260static void sbp_cmd_callback (struct fw_xfer *);
261#endif
262static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
263static void sbp_doorbell(struct sbp_dev *);
264static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
265static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
266static void sbp_abort_ocb (struct sbp_ocb *, int);
267static void sbp_abort_all_ocbs (struct sbp_dev *, int);
268static struct fw_xfer * sbp_write_cmd_locked (struct sbp_dev *, int, int);
269static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
270static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
271static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
272static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
273static void sbp_cam_detach_sdev(struct sbp_dev *);
274static void sbp_free_sdev(struct sbp_dev *);
275static void sbp_cam_detach_target (struct sbp_target *);
276static void sbp_free_target (struct sbp_target *);
277static void sbp_mgm_timeout (void *arg);
278static void sbp_timeout (void *arg);
279static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
280
281static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
282
283/* cam related functions */
284static void sbp_action(struct cam_sim *sim, union ccb *ccb);
285static void sbp_poll(struct cam_sim *sim);
286static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
287static void sbp_cam_scan_target(void *arg);
288
289static char *orb_status0[] = {
290 /* 0 */ "No additional information to report",
291 /* 1 */ "Request type not supported",
292 /* 2 */ "Speed not supported",
293 /* 3 */ "Page size not supported",
294 /* 4 */ "Access denied",
295 /* 5 */ "Logical unit not supported",
296 /* 6 */ "Maximum payload too small",
297 /* 7 */ "Reserved for future standardization",
298 /* 8 */ "Resources unavailable",
299 /* 9 */ "Function rejected",
300 /* A */ "Login ID not recognized",
301 /* B */ "Dummy ORB completed",
302 /* C */ "Request aborted",
303 /* FF */ "Unspecified error"
304#define MAX_ORB_STATUS0 0xd
305};
306
307static char *orb_status1_object[] = {
308 /* 0 */ "Operation request block (ORB)",
309 /* 1 */ "Data buffer",
310 /* 2 */ "Page table",
311 /* 3 */ "Unable to specify"
312};
313
314static char *orb_status1_serial_bus_error[] = {
315 /* 0 */ "Missing acknowledge",
316 /* 1 */ "Reserved; not to be used",
317 /* 2 */ "Time-out error",
318 /* 3 */ "Reserved; not to be used",
319 /* 4 */ "Busy retry limit exceeded(X)",
320 /* 5 */ "Busy retry limit exceeded(A)",
321 /* 6 */ "Busy retry limit exceeded(B)",
322 /* 7 */ "Reserved for future standardization",
323 /* 8 */ "Reserved for future standardization",
324 /* 9 */ "Reserved for future standardization",
325 /* A */ "Reserved for future standardization",
326 /* B */ "Tardy retry limit exceeded",
327 /* C */ "Conflict error",
328 /* D */ "Data error",
329 /* E */ "Type error",
330 /* F */ "Address error"
331};
332
333static void
334sbp_identify(driver_t *driver, device_t parent)
335{
336SBP_DEBUG(0)
337 printf("sbp_identify\n");
338END_DEBUG
339
340 BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent));
341}
342
343/*
344 * sbp_probe()
345 */
346static int
347sbp_probe(device_t dev)
348{
349 device_t pa;
350
351SBP_DEBUG(0)
352 printf("sbp_probe\n");
353END_DEBUG
354
355 pa = device_get_parent(dev);
356 if(device_get_unit(dev) != device_get_unit(pa)){
357 return(ENXIO);
358 }
359
360 device_set_desc(dev, "SBP-2/SCSI over FireWire");
361
362#if 0
363 if (bootverbose)
364 debug = bootverbose;
365#endif
366
367 return (0);
368}
369
370/*
371 * Display device characteristics on the console
372 */
373static void
374sbp_show_sdev_info(struct sbp_dev *sdev)
375{
376 struct fw_device *fwdev;
377
378 fwdev = sdev->target->fwdev;
379 device_printf(sdev->target->sbp->fd.dev,
380 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d "
381 "speed:%d maxrec:%d\n",
382 __func__,
383 sdev->bustgtlun,
384 (sdev->type & 0x40) >> 6,
385 (sdev->type & 0x1f),
386 fwdev->eui.hi,
387 fwdev->eui.lo,
388 fwdev->dst,
389 fwdev->speed,
390 fwdev->maxrec);
391
392 device_printf(sdev->target->sbp->fd.dev,
393 "%s: %s '%s' '%s' '%s'\n",
394 __func__,
395 sdev->bustgtlun,
396 sdev->vendor,
397 sdev->product,
398 sdev->revision);
399}
400
401static struct {
402 int bus;
403 int target;
404 struct fw_eui64 eui;
405} wired[] = {
406 /* Bus Target EUI64 */
407#if 0
408 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
409 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
410 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
411#endif
412 {-1, -1, {0,0}}
413};
414
415static int
416sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
417{
418 int bus, i, target=-1;
419 char w[SBP_NUM_TARGETS];
420
421 bzero(w, sizeof(w));
422 bus = device_get_unit(sbp->fd.dev);
423
424 /* XXX wired-down configuration should be gotten from
425 tunable or device hint */
426 for (i = 0; wired[i].bus >= 0; i ++) {
427 if (wired[i].bus == bus) {
428 w[wired[i].target] = 1;
429 if (wired[i].eui.hi == fwdev->eui.hi &&
430 wired[i].eui.lo == fwdev->eui.lo)
431 target = wired[i].target;
432 }
433 }
434 if (target >= 0) {
435 if(target < SBP_NUM_TARGETS &&
436 sbp->targets[target].fwdev == NULL)
437 return(target);
438 device_printf(sbp->fd.dev,
439 "target %d is not free for %08x:%08x\n",
440 target, fwdev->eui.hi, fwdev->eui.lo);
441 target = -1;
442 }
443 /* non-wired target */
444 for (i = 0; i < SBP_NUM_TARGETS; i ++)
445 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
446 target = i;
447 break;
448 }
449
450 return target;
451}
452
453static void
454sbp_alloc_lun(struct sbp_target *target)
455{
456 struct crom_context cc;
457 struct csrreg *reg;
458 struct sbp_dev *sdev, **newluns;
459 struct sbp_softc *sbp;
460 int maxlun, lun, i;
461
462 sbp = target->sbp;
463 crom_init_context(&cc, target->fwdev->csrrom);
464 /* XXX shoud parse appropriate unit directories only */
465 maxlun = -1;
466 while (cc.depth >= 0) {
467 reg = crom_search_key(&cc, CROM_LUN);
468 if (reg == NULL)
469 break;
470 lun = reg->val & 0xffff;
471SBP_DEBUG(0)
472 printf("target %d lun %d found\n", target->target_id, lun);
473END_DEBUG
474 if (maxlun < lun)
475 maxlun = lun;
476 crom_next(&cc);
477 }
478 if (maxlun < 0)
479 printf("%s:%d no LUN found\n",
480 device_get_nameunit(target->sbp->fd.dev),
481 target->target_id);
482
483 maxlun ++;
484 if (maxlun >= SBP_NUM_LUNS)
485 maxlun = SBP_NUM_LUNS;
486
487 /* Invalidiate stale devices */
488 for (lun = 0; lun < target->num_lun; lun ++) {
489 sdev = target->luns[lun];
490 if (sdev == NULL)
491 continue;
492 sdev->flags &= ~VALID_LUN;
493 if (lun >= maxlun) {
494 /* lost device */
495 sbp_cam_detach_sdev(sdev);
496 sbp_free_sdev(sdev);
497 target->luns[lun] = NULL;
498 }
499 }
500
501 /* Reallocate */
502 if (maxlun != target->num_lun) {
503 newluns = (struct sbp_dev **) realloc(target->luns,
504 sizeof(struct sbp_dev *) * maxlun,
505 M_SBP, M_NOWAIT | M_ZERO);
506
507 if (newluns == NULL) {
508 printf("%s: realloc failed\n", __func__);
509 newluns = target->luns;
510 maxlun = target->num_lun;
511 }
512
513 /*
514 * We must zero the extended region for the case
515 * realloc() doesn't allocate new buffer.
516 */
517 if (maxlun > target->num_lun)
518 bzero(&newluns[target->num_lun],
519 sizeof(struct sbp_dev *) *
520 (maxlun - target->num_lun));
521
522 target->luns = newluns;
523 target->num_lun = maxlun;
524 }
525
526 crom_init_context(&cc, target->fwdev->csrrom);
527 while (cc.depth >= 0) {
528 int new = 0;
529
530 reg = crom_search_key(&cc, CROM_LUN);
531 if (reg == NULL)
532 break;
533 lun = reg->val & 0xffff;
534 if (lun >= SBP_NUM_LUNS) {
535 printf("too large lun %d\n", lun);
536 goto next;
537 }
538
539 sdev = target->luns[lun];
540 if (sdev == NULL) {
541 sdev = malloc(sizeof(struct sbp_dev),
542 M_SBP, M_NOWAIT | M_ZERO);
543 if (sdev == NULL) {
544 printf("%s: malloc failed\n", __func__);
545 goto next;
546 }
547 target->luns[lun] = sdev;
548 sdev->lun_id = lun;
549 sdev->target = target;
550 STAILQ_INIT(&sdev->ocbs);
551 CALLOUT_INIT(&sdev->login_callout);
552 sdev->status = SBP_DEV_RESET;
553 new = 1;
554 snprintf(sdev->bustgtlun, 32, "%s:%d:%d",
555 device_get_nameunit(sdev->target->sbp->fd.dev),
556 sdev->target->target_id,
557 sdev->lun_id);
558 }
559 sdev->flags |= VALID_LUN;
560 sdev->type = (reg->val & 0xff0000) >> 16;
561
562 if (new == 0)
563 goto next;
564
565 fwdma_malloc(sbp->fd.fc,
566 /* alignment */ sizeof(uint32_t),
567 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT |
568 BUS_DMA_COHERENT);
569 if (sdev->dma.v_addr == NULL) {
570 printf("%s: dma space allocation failed\n",
571 __func__);
572 free(sdev, M_SBP);
573 target->luns[lun] = NULL;
574 goto next;
575 }
576 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
577 sdev->ocb = (struct sbp_ocb *)
578 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
579 bzero((char *)sdev->ocb,
580 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
581
582 STAILQ_INIT(&sdev->free_ocbs);
583 for (i = 0; i < SBP_QUEUE_LEN; i++) {
584 struct sbp_ocb *ocb;
585 ocb = &sdev->ocb[i];
586 ocb->bus_addr = sdev->dma.bus_addr
587 + SBP_LOGIN_SIZE
588 + sizeof(struct sbp_ocb) * i
589 + offsetof(struct sbp_ocb, orb[0]);
590 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
591 printf("sbp_attach: cannot create dmamap\n");
592 /* XXX */
593 goto next;
594 }
595 callout_handle_init(&ocb->timeout_ch);
596 sbp_free_ocb(sdev, ocb);
597 }
598next:
599 crom_next(&cc);
600 }
601
602 for (lun = 0; lun < target->num_lun; lun ++) {
603 sdev = target->luns[lun];
604 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
605 sbp_cam_detach_sdev(sdev);
606 sbp_free_sdev(sdev);
607 target->luns[lun] = NULL;
608 }
609 }
610}
611
612static struct sbp_target *
613sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
614{
615 int i;
616 struct sbp_target *target;
617 struct crom_context cc;
618 struct csrreg *reg;
619
620SBP_DEBUG(1)
621 printf("sbp_alloc_target\n");
622END_DEBUG
623 i = sbp_new_target(sbp, fwdev);
624 if (i < 0) {
625 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
626 return NULL;
627 }
628 /* new target */
629 target = &sbp->targets[i];
630 target->sbp = sbp;
631 target->fwdev = fwdev;
632 target->target_id = i;
633 /* XXX we may want to reload mgm port after each bus reset */
634 /* XXX there might be multiple management agents */
635 crom_init_context(&cc, target->fwdev->csrrom);
636 reg = crom_search_key(&cc, CROM_MGM);
637 if (reg == NULL || reg->val == 0) {
638 printf("NULL management address\n");
639 target->fwdev = NULL;
640 return NULL;
641 }
642 target->mgm_hi = 0xffff;
643 target->mgm_lo = 0xf0000000 | (reg->val << 2);
644 target->mgm_ocb_cur = NULL;
645SBP_DEBUG(1)
646 printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
647END_DEBUG
648 STAILQ_INIT(&target->xferlist);
649 target->n_xfer = 0;
650 STAILQ_INIT(&target->mgm_ocb_queue);
651 CALLOUT_INIT(&target->mgm_ocb_timeout);
652 CALLOUT_INIT(&target->scan_callout);
653
654 target->luns = NULL;
655 target->num_lun = 0;
656 return target;
657}
658
659static void
660sbp_probe_lun(struct sbp_dev *sdev)
661{
662 struct fw_device *fwdev;
663 struct crom_context c, *cc = &c;
664 struct csrreg *reg;
665
666 bzero(sdev->vendor, sizeof(sdev->vendor));
667 bzero(sdev->product, sizeof(sdev->product));
668
669 fwdev = sdev->target->fwdev;
670 crom_init_context(cc, fwdev->csrrom);
671 /* get vendor string */
672 crom_search_key(cc, CSRKEY_VENDOR);
673 crom_next(cc);
674 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
675 /* skip to the unit directory for SBP-2 */
676 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
677 if (reg->val == CSRVAL_T10SBP2)
678 break;
679 crom_next(cc);
680 }
681 /* get firmware revision */
682 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
683 if (reg != NULL)
684 snprintf(sdev->revision, sizeof(sdev->revision),
685 "%06x", reg->val);
686 /* get product string */
687 crom_search_key(cc, CSRKEY_MODEL);
688 crom_next(cc);
689 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
690}
691
692static void
693sbp_login_callout(void *arg)
694{
695 struct sbp_dev *sdev = (struct sbp_dev *)arg;
696 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
697}
698
699static void
700sbp_login(struct sbp_dev *sdev)
701{
702 struct timeval delta;
703 struct timeval t;
704 int ticks = 0;
705
706 microtime(&delta);
707 timevalsub(&delta, &sdev->target->sbp->last_busreset);
708 t.tv_sec = login_delay / 1000;
709 t.tv_usec = (login_delay % 1000) * 1000;
710 timevalsub(&t, &delta);
711 if (t.tv_sec >= 0 && t.tv_usec > 0)
712 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
713SBP_DEBUG(0)
714 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__,
715 (intmax_t)t.tv_sec, t.tv_usec, ticks);
716END_DEBUG
717 callout_reset(&sdev->login_callout, ticks,
718 sbp_login_callout, (void *)(sdev));
719}
720
721#define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
722 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
723
724static void
725sbp_probe_target(void *arg)
726{
727 struct sbp_target *target = (struct sbp_target *)arg;
728 struct sbp_softc *sbp = target->sbp;
729 struct sbp_dev *sdev;
730 int i, alive;
731
732 alive = SBP_FWDEV_ALIVE(target->fwdev);
733SBP_DEBUG(1)
734 device_printf(sbp->fd.dev, "%s %d%salive\n",
735 __func__, target->target_id,
736 (!alive) ? " not " : "");
737END_DEBUG
738
739 sbp = target->sbp;
740 sbp_alloc_lun(target);
741
742 /* XXX untimeout mgm_ocb and dequeue */
743 for (i=0; i < target->num_lun; i++) {
744 sdev = target->luns[i];
745 if (sdev == NULL)
746 continue;
747 if (alive && (sdev->status != SBP_DEV_DEAD)) {
748 if (sdev->path != NULL) {
749 SBP_LOCK(sbp);
750 xpt_freeze_devq(sdev->path, 1);
751 sdev->freeze ++;
752 SBP_UNLOCK(sbp);
753 }
754 sbp_probe_lun(sdev);
755 sbp_show_sdev_info(sdev);
756
757 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
758 switch (sdev->status) {
759 case SBP_DEV_RESET:
760 /* new or revived target */
761 if (auto_login)
762 sbp_login(sdev);
763 break;
764 case SBP_DEV_TOATTACH:
765 case SBP_DEV_PROBE:
766 case SBP_DEV_ATTACHED:
767 case SBP_DEV_RETRY:
768 default:
769 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
770 break;
771 }
772 } else {
773 switch (sdev->status) {
774 case SBP_DEV_ATTACHED:
775SBP_DEBUG(0)
776 /* the device has gone */
777 device_printf(sbp->fd.dev, "%s: lost target\n",
778 __func__);
779END_DEBUG
780 if (sdev->path) {
781 SBP_LOCK(sbp);
782 xpt_freeze_devq(sdev->path, 1);
783 sdev->freeze ++;
784 SBP_UNLOCK(sbp);
785 }
786 sdev->status = SBP_DEV_RETRY;
787 sbp_cam_detach_sdev(sdev);
788 sbp_free_sdev(sdev);
789 target->luns[i] = NULL;
790 break;
791 case SBP_DEV_PROBE:
792 case SBP_DEV_TOATTACH:
793 sdev->status = SBP_DEV_RESET;
794 break;
795 case SBP_DEV_RETRY:
796 case SBP_DEV_RESET:
797 case SBP_DEV_DEAD:
798 break;
799 }
800 }
801 }
802}
803
804static void
805sbp_post_busreset(void *arg)
806{
807 struct sbp_softc *sbp;
808
809 sbp = (struct sbp_softc *)arg;
810SBP_DEBUG(0)
811 printf("sbp_post_busreset\n");
812END_DEBUG
813 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
814 SBP_LOCK(sbp);
815 xpt_freeze_simq(sbp->sim, /*count*/1);
816 sbp->sim->flags |= SIMQ_FREEZED;
817 SBP_UNLOCK(sbp);
818 }
819 microtime(&sbp->last_busreset);
820}
821
822static void
823sbp_post_explore(void *arg)
824{
825 struct sbp_softc *sbp = (struct sbp_softc *)arg;
826 struct sbp_target *target;
827 struct fw_device *fwdev;
828 int i, alive;
829
830SBP_DEBUG(0)
831 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
832END_DEBUG
833 /* We need physical access */
834 if (!firewire_phydma_enable)
835 return;
836
837 if (sbp_cold > 0)
838 sbp_cold --;
839
840#if 0
841 /*
842 * XXX don't let CAM the bus rest.
843 * CAM tries to do something with freezed (DEV_RETRY) devices.
844 */
845 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
846#endif
847
848 /* Garbage Collection */
849 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
850 target = &sbp->targets[i];
851 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
852 if (target->fwdev == NULL || target->fwdev == fwdev)
853 break;
854 if (fwdev == NULL) {
855 /* device has removed in lower driver */
856 sbp_cam_detach_target(target);
857 sbp_free_target(target);
858 }
859 }
860 /* traverse device list */
861 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
862SBP_DEBUG(0)
863 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n",
864 __func__, fwdev->eui.hi, fwdev->eui.lo,
865 (fwdev->status != FWDEVATTACHED) ? "not" : "",
866 fwdev->status);
867END_DEBUG
868 alive = SBP_FWDEV_ALIVE(fwdev);
869 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
870 target = &sbp->targets[i];
871 if(target->fwdev == fwdev ) {
872 /* known target */
873 break;
874 }
875 }
876 if(i == SBP_NUM_TARGETS){
877 if (alive) {
878 /* new target */
879 target = sbp_alloc_target(sbp, fwdev);
880 if (target == NULL)
881 continue;
882 } else {
883 continue;
884 }
885 }
886 sbp_probe_target((void *)target);
887 if (target->num_lun == 0)
888 sbp_free_target(target);
889 }
890 SBP_LOCK(sbp);
891 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
892 sbp->sim->flags &= ~SIMQ_FREEZED;
893 SBP_UNLOCK(sbp);
894}
895
896#if NEED_RESPONSE
897static void
898sbp_loginres_callback(struct fw_xfer *xfer){
899 int s;
900 struct sbp_dev *sdev;
901 sdev = (struct sbp_dev *)xfer->sc;
902SBP_DEBUG(1)
903 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__);
904END_DEBUG
905 /* recycle */
906 s = splfw();
907 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
908 splx(s);
909 return;
910}
911#endif
912
913static __inline void
914sbp_xfer_free(struct fw_xfer *xfer)
915{
916 struct sbp_dev *sdev;
917 int s;
918
919 sdev = (struct sbp_dev *)xfer->sc;
920 fw_xfer_unload(xfer);
921 s = splfw();
922 SBP_LOCK(sdev->target->sbp);
923 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
924 SBP_UNLOCK(sdev->target->sbp);
925 splx(s);
926}
927
928static void
929sbp_reset_start_callback(struct fw_xfer *xfer)
930{
931 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
932 struct sbp_target *target = sdev->target;
933 int i;
934
935 if (xfer->resp != 0) {
936 device_printf(sdev->target->sbp->fd.dev,
937 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
938 }
939
940 for (i = 0; i < target->num_lun; i++) {
941 tsdev = target->luns[i];
942 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
943 sbp_login(tsdev);
944 }
945}
946
947static void
948sbp_reset_start(struct sbp_dev *sdev)
949{
950 struct fw_xfer *xfer;
951 struct fw_pkt *fp;
952
953SBP_DEBUG(0)
954 device_printf(sdev->target->sbp->fd.dev,
955 "%s:%s\n", __func__,sdev->bustgtlun);
956END_DEBUG
957
958 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
959 xfer->hand = sbp_reset_start_callback;
960 fp = &xfer->send.hdr;
961 fp->mode.wreqq.dest_hi = 0xffff;
962 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
963 fp->mode.wreqq.data = htonl(0xf);
964 fw_asyreq(xfer->fc, -1, xfer);
965}
966
967static void
968sbp_mgm_callback(struct fw_xfer *xfer)
969{
970 struct sbp_dev *sdev;
971 int resp;
972
973 sdev = (struct sbp_dev *)xfer->sc;
974
975SBP_DEBUG(1)
976 device_printf(sdev->target->sbp->fd.dev,
977 "%s:%s\n", __func__, sdev->bustgtlun);
978END_DEBUG
979 resp = xfer->resp;
980 sbp_xfer_free(xfer);
981 return;
982}
983
984static struct sbp_dev *
985sbp_next_dev(struct sbp_target *target, int lun)
986{
987 struct sbp_dev **sdevp;
988 int i;
989
990 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
991 i++, sdevp++)
992 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
993 return(*sdevp);
994 return(NULL);
995}
996
997#define SCAN_PRI 1
998static void
999sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
1000{
1001 struct sbp_target *target;
1002 struct sbp_dev *sdev;
1003
1004 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
1005 target = sdev->target;
1006SBP_DEBUG(0)
1007 device_printf(sdev->target->sbp->fd.dev,
1008 "%s:%s\n", __func__, sdev->bustgtlun);
1009END_DEBUG
1010 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1011 sdev->status = SBP_DEV_ATTACHED;
1012 } else {
1013 device_printf(sdev->target->sbp->fd.dev,
1014 "%s:%s failed\n", __func__, sdev->bustgtlun);
1015 }
1016 sdev = sbp_next_dev(target, sdev->lun_id + 1);
1017 if (sdev == NULL) {
1018 free(ccb, M_SBP);
1019 return;
1020 }
1021 /* reuse ccb */
1022 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1023 ccb->ccb_h.ccb_sdev_ptr = sdev;
1024 xpt_action(ccb);
1025 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1026 sdev->freeze = 1;
1027}
1028
1029static void
1030sbp_cam_scan_target(void *arg)
1031{
1032 struct sbp_target *target = (struct sbp_target *)arg;
1033 struct sbp_dev *sdev;
1034 union ccb *ccb;
1035
1036 sdev = sbp_next_dev(target, 0);
1037 if (sdev == NULL) {
1038 printf("sbp_cam_scan_target: nothing to do for target%d\n",
1039 target->target_id);
1040 return;
1041 }
1042SBP_DEBUG(0)
1043 device_printf(sdev->target->sbp->fd.dev,
1044 "%s:%s\n", __func__, sdev->bustgtlun);
1045END_DEBUG
1046 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
1047 if (ccb == NULL) {
1048 printf("sbp_cam_scan_target: malloc failed\n");
1049 return;
1050 }
1051 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1052 ccb->ccb_h.func_code = XPT_SCAN_LUN;
1053 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1054 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1055 ccb->crcn.flags = CAM_FLAG_NONE;
1056 ccb->ccb_h.ccb_sdev_ptr = sdev;
1057
1058 /* The scan is in progress now. */
1059 SBP_LOCK(target->sbp);
1060 xpt_action(ccb);
1061 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1062 sdev->freeze = 1;
1063 SBP_UNLOCK(target->sbp);
1064}
1065
1066static __inline void
1067sbp_scan_dev(struct sbp_dev *sdev)
1068{
1069 sdev->status = SBP_DEV_PROBE;
1070 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1071 sbp_cam_scan_target, (void *)sdev->target);
1072}
1073
1074static void
1075sbp_do_attach(struct fw_xfer *xfer)
1076{
1077 struct sbp_dev *sdev;
1078 struct sbp_target *target;
1079 struct sbp_softc *sbp;
1080
1081 sdev = (struct sbp_dev *)xfer->sc;
1082 target = sdev->target;
1083 sbp = target->sbp;
1084SBP_DEBUG(0)
1085 device_printf(sdev->target->sbp->fd.dev,
1086 "%s:%s\n", __func__, sdev->bustgtlun);
1087END_DEBUG
1088 sbp_xfer_free(xfer);
1089
1090 if (sdev->path == NULL)
1091 xpt_create_path(&sdev->path, NULL,
1092 cam_sim_path(target->sbp->sim),
1093 target->target_id, sdev->lun_id);
1094
1095 /*
1096 * Let CAM scan the bus if we are in the boot process.
1097 * XXX xpt_scan_bus cannot detect LUN larger than 0
1098 * if LUN 0 doesn't exists.
1099 */
1100 if (sbp_cold > 0) {
1101 sdev->status = SBP_DEV_ATTACHED;
1102 return;
1103 }
1104
1105 sbp_scan_dev(sdev);
1106 return;
1107}
1108
1109static void
1110sbp_agent_reset_callback(struct fw_xfer *xfer)
1111{
1112 struct sbp_dev *sdev;
1113
1114 sdev = (struct sbp_dev *)xfer->sc;
1115SBP_DEBUG(1)
1116 device_printf(sdev->target->sbp->fd.dev,
1117 "%s:%s\n", __func__, sdev->bustgtlun);
1118END_DEBUG
1119 if (xfer->resp != 0) {
1120 device_printf(sdev->target->sbp->fd.dev,
1121 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
1122 }
1123
1124 sbp_xfer_free(xfer);
1125 if (sdev->path) {
1126 SBP_LOCK(sdev->target->sbp);
1127 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1128 sdev->freeze = 0;
1129 SBP_UNLOCK(sdev->target->sbp);
1130 }
1131}
1132
1133static void
1134sbp_agent_reset(struct sbp_dev *sdev)
1135{
1136 struct fw_xfer *xfer;
1137 struct fw_pkt *fp;
1138
1139SBP_DEBUG(0)
1140 device_printf(sdev->target->sbp->fd.dev,
1141 "%s:%s\n", __func__, sdev->bustgtlun);
1142END_DEBUG
1143 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1144 if (xfer == NULL)
1145 return;
1146 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1147 xfer->hand = sbp_agent_reset_callback;
1148 else
1149 xfer->hand = sbp_do_attach;
1150 fp = &xfer->send.hdr;
1151 fp->mode.wreqq.data = htonl(0xf);
1152 fw_asyreq(xfer->fc, -1, xfer);
1153 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1154}
1155
1156static void
1157sbp_busy_timeout_callback(struct fw_xfer *xfer)
1158{
1159 struct sbp_dev *sdev;
1160
1161 sdev = (struct sbp_dev *)xfer->sc;
1162SBP_DEBUG(1)
1163 device_printf(sdev->target->sbp->fd.dev,
1164 "%s:%s\n", __func__, sdev->bustgtlun);
1165END_DEBUG
1166 sbp_xfer_free(xfer);
1167 sbp_agent_reset(sdev);
1168}
1169
1170static void
1171sbp_busy_timeout(struct sbp_dev *sdev)
1172{
1173 struct fw_pkt *fp;
1174 struct fw_xfer *xfer;
1175SBP_DEBUG(0)
1176 device_printf(sdev->target->sbp->fd.dev,
1177 "%s:%s\n", __func__, sdev->bustgtlun);
1178END_DEBUG
1179 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1180
1181 xfer->hand = sbp_busy_timeout_callback;
1182 fp = &xfer->send.hdr;
1183 fp->mode.wreqq.dest_hi = 0xffff;
1184 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1185 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1186 fw_asyreq(xfer->fc, -1, xfer);
1187}
1188
1189static void
1190sbp_orb_pointer_callback(struct fw_xfer *xfer)
1191{
1192 struct sbp_dev *sdev;
1193 sdev = (struct sbp_dev *)xfer->sc;
1194
1195SBP_DEBUG(2)
1196 device_printf(sdev->target->sbp->fd.dev,
1197 "%s:%s\n", __func__, sdev->bustgtlun);
1198END_DEBUG
1199 if (xfer->resp != 0) {
1200 /* XXX */
1201 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1202 }
1203 sbp_xfer_free(xfer);
1204
1205 SBP_LOCK(sdev->target->sbp);
1206 sdev->flags &= ~ORB_POINTER_ACTIVE;
1207
1208 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1209 struct sbp_ocb *ocb;
1210
1211 sdev->flags &= ~ORB_POINTER_NEED;
1212 ocb = STAILQ_FIRST(&sdev->ocbs);
1213 if (ocb != NULL)
1214 sbp_orb_pointer(sdev, ocb);
1215 }
1216 SBP_UNLOCK(sdev->target->sbp);
1217 return;
1218}
1219
1220static void
1221sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1222{
1223 struct fw_xfer *xfer;
1224 struct fw_pkt *fp;
1225SBP_DEBUG(1)
1226 device_printf(sdev->target->sbp->fd.dev,
1227 "%s:%s 0x%08x\n",
1228 __func__, sdev->bustgtlun,
1229 (uint32_t)ocb->bus_addr);
1230END_DEBUG
1231
1232 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1233
1234 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1235SBP_DEBUG(0)
1236 printf("%s: orb pointer active\n", __func__);
1237END_DEBUG
1238 sdev->flags |= ORB_POINTER_NEED;
1239 return;
1240 }
1241
1242 sdev->flags |= ORB_POINTER_ACTIVE;
1243 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQB, 0x08);
1244 if (xfer == NULL)
1245 return;
1246 xfer->hand = sbp_orb_pointer_callback;
1247
1248 fp = &xfer->send.hdr;
1249 fp->mode.wreqb.len = 8;
1250 fp->mode.wreqb.extcode = 0;
1251 xfer->send.payload[0] =
1252 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1253 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
1254
1255 /*
1256 * sbp_xfer_free() will attempt to acquire
1257 * the SBP lock on entrance. Also, this removes
1258 * a LOR between the firewire layer and sbp
1259 */
1260 SBP_UNLOCK(sdev->target->sbp);
1261 if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1262 sbp_xfer_free(xfer);
1263 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1264 xpt_done(ocb->ccb);
1265 }
1266 SBP_LOCK(sdev->target->sbp);
1267}
1268
1269static void
1270sbp_doorbell_callback(struct fw_xfer *xfer)
1271{
1272 struct sbp_dev *sdev;
1273 sdev = (struct sbp_dev *)xfer->sc;
1274
1275SBP_DEBUG(1)
1276 device_printf(sdev->target->sbp->fd.dev,
1277 "%s:%s\n", __func__, sdev->bustgtlun);
1278END_DEBUG
1279 if (xfer->resp != 0) {
1280 /* XXX */
1281 device_printf(sdev->target->sbp->fd.dev,
1282 "%s: xfer->resp = %d\n", __func__, xfer->resp);
1283 }
1284 sbp_xfer_free(xfer);
1285 sdev->flags &= ~ORB_DOORBELL_ACTIVE;
1286 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
1287 sdev->flags &= ~ORB_DOORBELL_NEED;
1288 SBP_LOCK(sdev->target->sbp);
1289 sbp_doorbell(sdev);
1290 SBP_UNLOCK(sdev->target->sbp);
1291 }
1292 return;
1293}
1294
1295static void
1296sbp_doorbell(struct sbp_dev *sdev)
1297{
1298 struct fw_xfer *xfer;
1299 struct fw_pkt *fp;
1300SBP_DEBUG(1)
1301 device_printf(sdev->target->sbp->fd.dev,
1302 "%s:%s\n", __func__, sdev->bustgtlun);
1303END_DEBUG
1304
1305 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
1306 sdev->flags |= ORB_DOORBELL_NEED;
1307 return;
1308 }
1309 sdev->flags |= ORB_DOORBELL_ACTIVE;
1310 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQQ, 0x10);
1311 if (xfer == NULL)
1312 return;
1313 xfer->hand = sbp_doorbell_callback;
1314 fp = &xfer->send.hdr;
1315 fp->mode.wreqq.data = htonl(0xf);
1316 fw_asyreq(xfer->fc, -1, xfer);
1317}
1318
1319static struct fw_xfer *
1320sbp_write_cmd_locked(struct sbp_dev *sdev, int tcode, int offset)
1321{
1322 struct fw_xfer *xfer;
1323 struct fw_pkt *fp;
1324 struct sbp_target *target;
1325 int s, new = 0;
1326
1327 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1328
1329 target = sdev->target;
1330 s = splfw();
1331 xfer = STAILQ_FIRST(&target->xferlist);
1332 if (xfer == NULL) {
1333 if (target->n_xfer > 5 /* XXX */) {
1334 printf("sbp: no more xfer for this target\n");
1335 splx(s);
1336 return(NULL);
1337 }
1338 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1339 if(xfer == NULL){
1340 printf("sbp: fw_xfer_alloc_buf failed\n");
1341 splx(s);
1342 return NULL;
1343 }
1344 target->n_xfer ++;
1345 if (debug)
1346 printf("sbp: alloc %d xfer\n", target->n_xfer);
1347 new = 1;
1348 } else {
1349 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1350 }
1351 splx(s);
1352
1353 if (new) {
1354 xfer->recv.pay_len = 0;
1355 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1356 xfer->fc = sdev->target->sbp->fd.fc;
1357 }
1358
1359 if (tcode == FWTCODE_WREQB)
1360 xfer->send.pay_len = 8;
1361 else
1362 xfer->send.pay_len = 0;
1363
1364 xfer->sc = (caddr_t)sdev;
1365 fp = &xfer->send.hdr;
1366 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1367 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1368 fp->mode.wreqq.tlrt = 0;
1369 fp->mode.wreqq.tcode = tcode;
1370 fp->mode.wreqq.pri = 0;
1371 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1372
1373 return xfer;
1374
1375}
1376
1377static struct fw_xfer *
1378sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1379{
1380 struct sbp_softc *sbp = sdev->target->sbp;
1381 struct fw_xfer *xfer;
1382
1383 SBP_LOCK(sbp);
1384 xfer = sbp_write_cmd_locked(sdev, tcode, offset);
1385 SBP_UNLOCK(sbp);
1386
1387 return (xfer);
1388}
1389
1390static void
1391sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1392{
1393 struct fw_xfer *xfer;
1394 struct fw_pkt *fp;
1395 struct sbp_ocb *ocb;
1396 struct sbp_target *target;
1397 int s, nid;
1398
1399 target = sdev->target;
1400 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1401
1402 s = splfw();
1403 SBP_LOCK(target->sbp);
1404 if (func == ORB_FUN_RUNQUEUE) {
1405 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1406 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1407 SBP_UNLOCK(target->sbp);
1408 splx(s);
1409 return;
1410 }
1411 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1412 SBP_UNLOCK(target->sbp);
1413 goto start;
1414 }
1415 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1416 SBP_UNLOCK(target->sbp);
1417 splx(s);
1418 /* XXX */
1419 return;
1420 }
1421 SBP_UNLOCK(target->sbp);
1422 ocb->flags = OCB_ACT_MGM;
1423 ocb->sdev = sdev;
1424
1425 bzero((void *)ocb->orb, sizeof(ocb->orb));
1426 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1427 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1428
1429SBP_DEBUG(0)
1430 device_printf(sdev->target->sbp->fd.dev,
1431 "%s:%s %s\n",
1432 __func__,sdev->bustgtlun,
1433 orb_fun_name[(func>>16)&0xf]);
1434END_DEBUG
1435 switch (func) {
1436 case ORB_FUN_LGI:
1437 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1438 ocb->orb[2] = htonl(nid << 16);
1439 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1440 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1441 if (ex_login)
1442 ocb->orb[4] |= htonl(ORB_EXV);
1443 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1444 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1445 break;
1446 case ORB_FUN_ATA:
1447 ocb->orb[0] = htonl((0 << 16) | 0);
1448 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1449 /* fall through */
1450 case ORB_FUN_RCN:
1451 case ORB_FUN_LGO:
1452 case ORB_FUN_LUR:
1453 case ORB_FUN_RST:
1454 case ORB_FUN_ATS:
1455 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1456 break;
1457 }
1458
1459 if (target->mgm_ocb_cur != NULL) {
1460 /* there is a standing ORB */
1461 SBP_LOCK(target->sbp);
1462 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1463 SBP_UNLOCK(target->sbp);
1464 splx(s);
1465 return;
1466 }
1467start:
1468 target->mgm_ocb_cur = ocb;
1469 splx(s);
1470
1471 callout_reset(&target->mgm_ocb_timeout, 5*hz,
1472 sbp_mgm_timeout, (caddr_t)ocb);
1473 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1474 if(xfer == NULL){
1475 return;
1476 }
1477 xfer->hand = sbp_mgm_callback;
1478
1479 fp = &xfer->send.hdr;
1480 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1481 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1482 fp->mode.wreqb.len = 8;
1483 fp->mode.wreqb.extcode = 0;
1484 xfer->send.payload[0] = htonl(nid << 16);
1485 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1486
1487 fw_asyreq(xfer->fc, -1, xfer);
1488}
1489
1490static void
1491sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1492{
1493 struct ccb_scsiio *csio;
1494
1495 csio = &ocb->ccb->csio;
|
1496 printf("%s:%d:%d XPT_SCSI_IO: "
| 1496 printf("%s:%d:%jx XPT_SCSI_IO: "
|
1497 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1498 ", flags: 0x%02x, "
1499 "%db cmd/%db data/%db sense\n",
1500 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
| 1497 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1498 ", flags: 0x%02x, "
1499 "%db cmd/%db data/%db sense\n",
1500 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
|
1501 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
| 1501 ocb->ccb->ccb_h.target_id,
1502 (uintmax_t)ocb->ccb->ccb_h.target_lun,
|
1502 csio->cdb_io.cdb_bytes[0],
1503 csio->cdb_io.cdb_bytes[1],
1504 csio->cdb_io.cdb_bytes[2],
1505 csio->cdb_io.cdb_bytes[3],
1506 csio->cdb_io.cdb_bytes[4],
1507 csio->cdb_io.cdb_bytes[5],
1508 csio->cdb_io.cdb_bytes[6],
1509 csio->cdb_io.cdb_bytes[7],
1510 csio->cdb_io.cdb_bytes[8],
1511 csio->cdb_io.cdb_bytes[9],
1512 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1513 csio->cdb_len, csio->dxfer_len,
1514 csio->sense_len);
1515}
1516
1517static void
1518sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1519{
1520 struct sbp_cmd_status *sbp_cmd_status;
1521 struct scsi_sense_data_fixed *sense;
1522
1523 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1524 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data;
1525
1526SBP_DEBUG(0)
1527 sbp_print_scsi_cmd(ocb);
1528 /* XXX need decode status */
1529 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1530 ocb->sdev->bustgtlun,
1531 sbp_cmd_status->status,
1532 sbp_cmd_status->sfmt,
1533 sbp_cmd_status->valid,
1534 sbp_cmd_status->s_key,
1535 sbp_cmd_status->s_code,
1536 sbp_cmd_status->s_qlfr,
1537 sbp_status->len);
1538END_DEBUG
1539
1540 switch (sbp_cmd_status->status) {
1541 case SCSI_STATUS_CHECK_COND:
1542 case SCSI_STATUS_BUSY:
1543 case SCSI_STATUS_CMD_TERMINATED:
1544 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1545 sense->error_code = SSD_CURRENT_ERROR;
1546 }else{
1547 sense->error_code = SSD_DEFERRED_ERROR;
1548 }
1549 if(sbp_cmd_status->valid)
1550 sense->error_code |= SSD_ERRCODE_VALID;
1551 sense->flags = sbp_cmd_status->s_key;
1552 if(sbp_cmd_status->mark)
1553 sense->flags |= SSD_FILEMARK;
1554 if(sbp_cmd_status->eom)
1555 sense->flags |= SSD_EOM;
1556 if(sbp_cmd_status->ill_len)
1557 sense->flags |= SSD_ILI;
1558
1559 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1560
1561 if (sbp_status->len <= 1)
1562 /* XXX not scsi status. shouldn't be happened */
1563 sense->extra_len = 0;
1564 else if (sbp_status->len <= 4)
1565 /* add_sense_code(_qual), info, cmd_spec_info */
1566 sense->extra_len = 6;
1567 else
1568 /* fru, sense_key_spec */
1569 sense->extra_len = 10;
1570
1571 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1572
1573 sense->add_sense_code = sbp_cmd_status->s_code;
1574 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1575 sense->fru = sbp_cmd_status->fru;
1576
1577 bcopy(&sbp_cmd_status->s_keydep[0],
1578 &sense->sense_key_spec[0], 3);
1579
1580 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1581 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1582 | CAM_AUTOSNS_VALID;
1583/*
1584{
1585 uint8_t j, *tmp;
1586 tmp = sense;
1587 for( j = 0 ; j < 32 ; j+=8){
1588 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1589 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1590 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1591 }
1592
1593}
1594*/
1595 break;
1596 default:
1597 device_printf(ocb->sdev->target->sbp->fd.dev,
1598 "%s:%s unknown scsi status 0x%x\n",
1599 __func__, ocb->sdev->bustgtlun,
1600 sbp_cmd_status->status);
1601 }
1602}
1603
1604static void
1605sbp_fix_inq_data(struct sbp_ocb *ocb)
1606{
1607 union ccb *ccb;
1608 struct sbp_dev *sdev;
1609 struct scsi_inquiry_data *inq;
1610
1611 ccb = ocb->ccb;
1612 sdev = ocb->sdev;
1613
1614 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1615 return;
1616SBP_DEBUG(1)
1617 device_printf(sdev->target->sbp->fd.dev,
1618 "%s:%s\n", __func__, sdev->bustgtlun);
1619END_DEBUG
1620 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1621 switch (SID_TYPE(inq)) {
1622 case T_DIRECT:
1623#if 0
1624 /*
1625 * XXX Convert Direct Access device to RBC.
1626 * I've never seen FireWire DA devices which support READ_6.
1627 */
1628 if (SID_TYPE(inq) == T_DIRECT)
1629 inq->device |= T_RBC; /* T_DIRECT == 0 */
1630#endif
1631 /* fall through */
1632 case T_RBC:
1633 /*
1634 * Override vendor/product/revision information.
1635 * Some devices sometimes return strange strings.
1636 */
1637#if 1
1638 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1639 bcopy(sdev->product, inq->product, sizeof(inq->product));
1640 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1641#endif
1642 break;
1643 }
1644 /*
1645 * Force to enable/disable tagged queuing.
1646 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
1647 */
1648 if (sbp_tags > 0)
1649 inq->flags |= SID_CmdQue;
1650 else if (sbp_tags < 0)
1651 inq->flags &= ~SID_CmdQue;
1652
1653}
1654
1655static void
1656sbp_recv1(struct fw_xfer *xfer)
1657{
1658 struct fw_pkt *rfp;
1659#if NEED_RESPONSE
1660 struct fw_pkt *sfp;
1661#endif
1662 struct sbp_softc *sbp;
1663 struct sbp_dev *sdev;
1664 struct sbp_ocb *ocb;
1665 struct sbp_login_res *login_res = NULL;
1666 struct sbp_status *sbp_status;
1667 struct sbp_target *target;
1668 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1669 uint32_t addr;
1670/*
1671 uint32_t *ld;
1672 ld = xfer->recv.buf;
1673printf("sbp %x %d %d %08x %08x %08x %08x\n",
1674 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1675printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1676printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1677*/
1678 sbp = (struct sbp_softc *)xfer->sc;
1679 if (xfer->resp != 0){
1680 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1681 goto done0;
1682 }
1683 if (xfer->recv.payload == NULL){
1684 printf("sbp_recv: xfer->recv.payload == NULL\n");
1685 goto done0;
1686 }
1687 rfp = &xfer->recv.hdr;
1688 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1689 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1690 goto done0;
1691 }
1692 sbp_status = (struct sbp_status *)xfer->recv.payload;
1693 addr = rfp->mode.wreqb.dest_lo;
1694SBP_DEBUG(2)
1695 printf("received address 0x%x\n", addr);
1696END_DEBUG
1697 t = SBP_ADDR2TRG(addr);
1698 if (t >= SBP_NUM_TARGETS) {
1699 device_printf(sbp->fd.dev,
1700 "sbp_recv1: invalid target %d\n", t);
1701 goto done0;
1702 }
1703 target = &sbp->targets[t];
1704 l = SBP_ADDR2LUN(addr);
1705 if (l >= target->num_lun || target->luns[l] == NULL) {
1706 device_printf(sbp->fd.dev,
1707 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1708 goto done0;
1709 }
1710 sdev = target->luns[l];
1711
1712 ocb = NULL;
1713 switch (sbp_status->src) {
1714 case 0:
1715 case 1:
1716 /* check mgm_ocb_cur first */
1717 ocb = target->mgm_ocb_cur;
1718 if (ocb != NULL) {
1719 if (OCB_MATCH(ocb, sbp_status)) {
1720 callout_stop(&target->mgm_ocb_timeout);
1721 target->mgm_ocb_cur = NULL;
1722 break;
1723 }
1724 }
1725 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1726 if (ocb == NULL) {
1727 device_printf(sdev->target->sbp->fd.dev,
1728#if defined(__DragonFly__) || __FreeBSD_version < 500000
1729 "%s:%s No ocb(%lx) on the queue\n",
1730#else
1731 "%s:%s No ocb(%x) on the queue\n",
1732#endif
1733 __func__,sdev->bustgtlun,
1734 ntohl(sbp_status->orb_lo));
1735 }
1736 break;
1737 case 2:
1738 /* unsolicit */
1739 device_printf(sdev->target->sbp->fd.dev,
1740 "%s:%s unsolicit status received\n",
1741 __func__, sdev->bustgtlun);
1742 break;
1743 default:
1744 device_printf(sdev->target->sbp->fd.dev,
1745 "%s:%s unknown sbp_status->src\n",
1746 __func__, sdev->bustgtlun);
1747 }
1748
1749 status_valid0 = (sbp_status->src < 2
1750 && sbp_status->resp == ORB_RES_CMPL
1751 && sbp_status->dead == 0);
1752 status_valid = (status_valid0 && sbp_status->status == 0);
1753
1754 if (!status_valid0 || debug > 2){
1755 int status;
1756SBP_DEBUG(0)
1757 device_printf(sdev->target->sbp->fd.dev,
1758 "%s:%s ORB status src:%x resp:%x dead:%x"
1759#if defined(__DragonFly__) || __FreeBSD_version < 500000
1760 " len:%x stat:%x orb:%x%08lx\n",
1761#else
1762 " len:%x stat:%x orb:%x%08x\n",
1763#endif
1764 __func__, sdev->bustgtlun,
1765 sbp_status->src, sbp_status->resp, sbp_status->dead,
1766 sbp_status->len, sbp_status->status,
1767 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1768END_DEBUG
1769 device_printf(sdev->target->sbp->fd.dev,
1770 "%s\n", sdev->bustgtlun);
1771 status = sbp_status->status;
1772 switch(sbp_status->resp) {
1773 case 0:
1774 if (status > MAX_ORB_STATUS0)
1775 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1776 else
1777 printf("%s\n", orb_status0[status]);
1778 break;
1779 case 1:
1780 printf("Obj: %s, Error: %s\n",
1781 orb_status1_object[(status>>6) & 3],
1782 orb_status1_serial_bus_error[status & 0xf]);
1783 break;
1784 case 2:
1785 printf("Illegal request\n");
1786 break;
1787 case 3:
1788 printf("Vendor dependent\n");
1789 break;
1790 default:
1791 printf("unknown respose code %d\n", sbp_status->resp);
1792 }
1793 }
1794
1795 /* we have to reset the fetch agent if it's dead */
1796 if (sbp_status->dead) {
1797 if (sdev->path) {
1798 SBP_LOCK(sbp);
1799 xpt_freeze_devq(sdev->path, 1);
1800 sdev->freeze ++;
1801 SBP_UNLOCK(sbp);
1802 }
1803 reset_agent = 1;
1804 }
1805
1806 if (ocb == NULL)
1807 goto done;
1808
1809 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1810 case ORB_FMT_NOP:
1811 break;
1812 case ORB_FMT_VED:
1813 break;
1814 case ORB_FMT_STD:
1815 switch(ocb->flags) {
1816 case OCB_ACT_MGM:
1817 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1818 reset_agent = 0;
1819 switch(orb_fun) {
1820 case ORB_FUN_LGI:
1821 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1822 login_res = sdev->login;
1823 login_res->len = ntohs(login_res->len);
1824 login_res->id = ntohs(login_res->id);
1825 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1826 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1827 if (status_valid) {
1828SBP_DEBUG(0)
1829 device_printf(sdev->target->sbp->fd.dev,
1830 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n",
1831 __func__, sdev->bustgtlun,
1832 login_res->len, login_res->id,
1833 login_res->cmd_hi, login_res->cmd_lo,
1834 ntohs(login_res->recon_hold));
1835END_DEBUG
1836 sbp_busy_timeout(sdev);
1837 } else {
1838 /* forgot logout? */
1839 device_printf(sdev->target->sbp->fd.dev,
1840 "%s:%s login failed\n",
1841 __func__, sdev->bustgtlun);
1842 sdev->status = SBP_DEV_RESET;
1843 }
1844 break;
1845 case ORB_FUN_RCN:
1846 login_res = sdev->login;
1847 if (status_valid) {
1848SBP_DEBUG(0)
1849 device_printf(sdev->target->sbp->fd.dev,
1850 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n",
1851 __func__, sdev->bustgtlun,
1852 login_res->len, login_res->id,
1853 login_res->cmd_hi, login_res->cmd_lo);
1854END_DEBUG
1855 if (sdev->status == SBP_DEV_ATTACHED)
1856 sbp_scan_dev(sdev);
1857 else
1858 sbp_agent_reset(sdev);
1859 } else {
1860 /* reconnection hold time exceed? */
1861SBP_DEBUG(0)
1862 device_printf(sdev->target->sbp->fd.dev,
1863 "%s:%s reconnect failed\n",
1864 __func__, sdev->bustgtlun);
1865END_DEBUG
1866 sbp_login(sdev);
1867 }
1868 break;
1869 case ORB_FUN_LGO:
1870 sdev->status = SBP_DEV_RESET;
1871 break;
1872 case ORB_FUN_RST:
1873 sbp_busy_timeout(sdev);
1874 break;
1875 case ORB_FUN_LUR:
1876 case ORB_FUN_ATA:
1877 case ORB_FUN_ATS:
1878 sbp_agent_reset(sdev);
1879 break;
1880 default:
1881 device_printf(sdev->target->sbp->fd.dev,
1882 "%s:%s unknown function %d\n",
1883 __func__, sdev->bustgtlun, orb_fun);
1884 break;
1885 }
1886 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1887 break;
1888 case OCB_ACT_CMD:
1889 sdev->timeout = 0;
1890 if(ocb->ccb != NULL){
1891 union ccb *ccb;
1892
1893 ccb = ocb->ccb;
1894 if(sbp_status->len > 1){
1895 sbp_scsi_status(sbp_status, ocb);
1896 }else{
1897 if(sbp_status->resp != ORB_RES_CMPL){
1898 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1899 }else{
1900 ccb->ccb_h.status = CAM_REQ_CMP;
1901 }
1902 }
1903 /* fix up inq data */
1904 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1905 sbp_fix_inq_data(ocb);
1906 SBP_LOCK(sbp);
1907 xpt_done(ccb);
1908 SBP_UNLOCK(sbp);
1909 }
1910 break;
1911 default:
1912 break;
1913 }
1914 }
1915
1916 if (!use_doorbell)
1917 sbp_free_ocb(sdev, ocb);
1918done:
1919 if (reset_agent)
1920 sbp_agent_reset(sdev);
1921
1922done0:
1923 xfer->recv.pay_len = SBP_RECV_LEN;
1924/* The received packet is usually small enough to be stored within
1925 * the buffer. In that case, the controller return ack_complete and
1926 * no respose is necessary.
1927 *
1928 * XXX fwohci.c and firewire.c should inform event_code such as
1929 * ack_complete or ack_pending to upper driver.
1930 */
1931#if NEED_RESPONSE
1932 xfer->send.off = 0;
1933 sfp = (struct fw_pkt *)xfer->send.buf;
1934 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1935 xfer->dst = sfp->mode.wres.dst;
1936 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1937 xfer->hand = sbp_loginres_callback;
1938
1939 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1940 sfp->mode.wres.tcode = FWTCODE_WRES;
1941 sfp->mode.wres.rtcode = 0;
1942 sfp->mode.wres.pri = 0;
1943
1944 fw_asyreq(xfer->fc, -1, xfer);
1945#else
1946 /* recycle */
1947 /* we don't need a lock here because bottom half is serialized */
1948 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1949#endif
1950
1951 return;
1952
1953}
1954
1955static void
1956sbp_recv(struct fw_xfer *xfer)
1957{
1958 int s;
1959
1960 s = splcam();
1961 sbp_recv1(xfer);
1962 splx(s);
1963}
1964/*
1965 * sbp_attach()
1966 */
1967static int
1968sbp_attach(device_t dev)
1969{
1970 struct sbp_softc *sbp;
1971 struct cam_devq *devq;
1972 struct firewire_comm *fc;
1973 int i, s, error;
1974
1975 if (DFLTPHYS > SBP_MAXPHYS)
1976 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than "
1977 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024,
1978 SBP_MAXPHYS / 1024);
1979
1980 if (!firewire_phydma_enable)
1981 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 "
1982 "for SBP over FireWire.\n");
1983SBP_DEBUG(0)
1984 printf("sbp_attach (cold=%d)\n", cold);
1985END_DEBUG
1986
1987 if (cold)
1988 sbp_cold ++;
1989 sbp = ((struct sbp_softc *)device_get_softc(dev));
1990 bzero(sbp, sizeof(struct sbp_softc));
1991 sbp->fd.dev = dev;
1992 sbp->fd.fc = fc = device_get_ivars(dev);
1993 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF);
1994
1995 if (max_speed < 0)
1996 max_speed = fc->speed;
1997
1998 error = bus_dma_tag_create(/*parent*/fc->dmat,
1999 /* XXX shoud be 4 for sane backend? */
2000 /*alignment*/1,
2001 /*boundary*/0,
2002 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
2003 /*highaddr*/BUS_SPACE_MAXADDR,
2004 /*filter*/NULL, /*filterarg*/NULL,
2005 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
2006 /*maxsegsz*/SBP_SEG_MAX,
2007 /*flags*/BUS_DMA_ALLOCNOW,
2008#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
2009 /*lockfunc*/busdma_lock_mutex,
2010 /*lockarg*/&sbp->mtx,
2011#endif
2012 &sbp->dmat);
2013 if (error != 0) {
2014 printf("sbp_attach: Could not allocate DMA tag "
2015 "- error %d\n", error);
2016 return (ENOMEM);
2017 }
2018
2019 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
2020 if (devq == NULL)
2021 return (ENXIO);
2022
2023 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
2024 sbp->targets[i].fwdev = NULL;
2025 sbp->targets[i].luns = NULL;
2026 }
2027
2028 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
2029 device_get_unit(dev),
2030 &sbp->mtx,
2031 /*untagged*/ 1,
2032 /*tagged*/ SBP_QUEUE_LEN - 1,
2033 devq);
2034
2035 if (sbp->sim == NULL) {
2036 cam_simq_free(devq);
2037 return (ENXIO);
2038 }
2039
2040 SBP_LOCK(sbp);
2041 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS)
2042 goto fail;
2043
2044 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim),
2045 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2046 xpt_bus_deregister(cam_sim_path(sbp->sim));
2047 goto fail;
2048 }
2049 SBP_UNLOCK(sbp);
2050
2051 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
2052 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
2053 sbp->fwb.end = sbp->fwb.start + 0xffff;
2054 /* pre-allocate xfer */
2055 STAILQ_INIT(&sbp->fwb.xferlist);
2056 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP,
2057 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2,
2058 fc, (void *)sbp, sbp_recv);
2059
2060 fw_bindadd(fc, &sbp->fwb);
2061
2062 sbp->fd.post_busreset = sbp_post_busreset;
2063 sbp->fd.post_explore = sbp_post_explore;
2064
2065 if (fc->status != -1) {
2066 s = splfw();
2067 sbp_post_busreset((void *)sbp);
2068 sbp_post_explore((void *)sbp);
2069 splx(s);
2070 }
2071 SBP_LOCK(sbp);
2072 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
2073 SBP_UNLOCK(sbp);
2074
2075 return (0);
2076fail:
2077 SBP_UNLOCK(sbp);
2078 cam_sim_free(sbp->sim, /*free_devq*/TRUE);
2079 return (ENXIO);
2080}
2081
2082static int
2083sbp_logout_all(struct sbp_softc *sbp)
2084{
2085 struct sbp_target *target;
2086 struct sbp_dev *sdev;
2087 int i, j;
2088
2089SBP_DEBUG(0)
2090 printf("sbp_logout_all\n");
2091END_DEBUG
2092 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
2093 target = &sbp->targets[i];
2094 if (target->luns == NULL)
2095 continue;
2096 for (j = 0; j < target->num_lun; j++) {
2097 sdev = target->luns[j];
2098 if (sdev == NULL)
2099 continue;
2100 callout_stop(&sdev->login_callout);
2101 if (sdev->status >= SBP_DEV_TOATTACH &&
2102 sdev->status <= SBP_DEV_ATTACHED)
2103 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
2104 }
2105 }
2106
2107 return 0;
2108}
2109
2110static int
2111sbp_shutdown(device_t dev)
2112{
2113 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2114
2115 sbp_logout_all(sbp);
2116 return (0);
2117}
2118
2119static void
2120sbp_free_sdev(struct sbp_dev *sdev)
2121{
2122 int i;
2123
2124 if (sdev == NULL)
2125 return;
2126 for (i = 0; i < SBP_QUEUE_LEN; i++)
2127 bus_dmamap_destroy(sdev->target->sbp->dmat,
2128 sdev->ocb[i].dmamap);
2129 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
2130 free(sdev, M_SBP);
2131 sdev = NULL;
2132}
2133
2134static void
2135sbp_free_target(struct sbp_target *target)
2136{
2137 struct sbp_softc *sbp;
2138 struct fw_xfer *xfer, *next;
2139 int i;
2140
2141 if (target->luns == NULL)
2142 return;
2143 callout_stop(&target->mgm_ocb_timeout);
2144 sbp = target->sbp;
2145 for (i = 0; i < target->num_lun; i++)
2146 sbp_free_sdev(target->luns[i]);
2147
2148 for (xfer = STAILQ_FIRST(&target->xferlist);
2149 xfer != NULL; xfer = next) {
2150 next = STAILQ_NEXT(xfer, link);
2151 fw_xfer_free_buf(xfer);
2152 }
2153 STAILQ_INIT(&target->xferlist);
2154 free(target->luns, M_SBP);
2155 target->num_lun = 0;
2156 target->luns = NULL;
2157 target->fwdev = NULL;
2158}
2159
2160static int
2161sbp_detach(device_t dev)
2162{
2163 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2164 struct firewire_comm *fc = sbp->fd.fc;
2165 int i;
2166
2167SBP_DEBUG(0)
2168 printf("sbp_detach\n");
2169END_DEBUG
2170
2171 for (i = 0; i < SBP_NUM_TARGETS; i ++)
2172 sbp_cam_detach_target(&sbp->targets[i]);
2173
2174 SBP_LOCK(sbp);
2175 xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2176 xpt_free_path(sbp->path);
2177 xpt_bus_deregister(cam_sim_path(sbp->sim));
2178 cam_sim_free(sbp->sim, /*free_devq*/ TRUE);
2179 SBP_UNLOCK(sbp);
2180
2181 sbp_logout_all(sbp);
2182
2183 /* XXX wait for logout completion */
2184 pause("sbpdtc", hz/2);
2185
2186 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2187 sbp_free_target(&sbp->targets[i]);
2188
2189 fw_bindremove(fc, &sbp->fwb);
2190 fw_xferlist_remove(&sbp->fwb.xferlist);
2191
2192 bus_dma_tag_destroy(sbp->dmat);
2193 mtx_destroy(&sbp->mtx);
2194
2195 return (0);
2196}
2197
2198static void
2199sbp_cam_detach_sdev(struct sbp_dev *sdev)
2200{
2201 if (sdev == NULL)
2202 return;
2203 if (sdev->status == SBP_DEV_DEAD)
2204 return;
2205 if (sdev->status == SBP_DEV_RESET)
2206 return;
2207 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2208 if (sdev->path) {
2209 SBP_LOCK(sdev->target->sbp);
2210 xpt_release_devq(sdev->path,
2211 sdev->freeze, TRUE);
2212 sdev->freeze = 0;
2213 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2214 xpt_free_path(sdev->path);
2215 sdev->path = NULL;
2216 SBP_UNLOCK(sdev->target->sbp);
2217 }
2218}
2219
2220static void
2221sbp_cam_detach_target(struct sbp_target *target)
2222{
2223 int i;
2224
2225 if (target->luns != NULL) {
2226SBP_DEBUG(0)
2227 printf("sbp_detach_target %d\n", target->target_id);
2228END_DEBUG
2229 callout_stop(&target->scan_callout);
2230 for (i = 0; i < target->num_lun; i++)
2231 sbp_cam_detach_sdev(target->luns[i]);
2232 }
2233}
2234
2235static void
2236sbp_target_reset(struct sbp_dev *sdev, int method)
2237{
2238 int i;
2239 struct sbp_target *target = sdev->target;
2240 struct sbp_dev *tsdev;
2241
2242 for (i = 0; i < target->num_lun; i++) {
2243 tsdev = target->luns[i];
2244 if (tsdev == NULL)
2245 continue;
2246 if (tsdev->status == SBP_DEV_DEAD)
2247 continue;
2248 if (tsdev->status == SBP_DEV_RESET)
2249 continue;
2250 SBP_LOCK(target->sbp);
2251 xpt_freeze_devq(tsdev->path, 1);
2252 tsdev->freeze ++;
2253 SBP_UNLOCK(target->sbp);
2254 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2255 if (method == 2)
2256 tsdev->status = SBP_DEV_LOGIN;
2257 }
2258 switch(method) {
2259 case 1:
2260 printf("target reset\n");
2261 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2262 break;
2263 case 2:
2264 printf("reset start\n");
2265 sbp_reset_start(sdev);
2266 break;
2267 }
2268
2269}
2270
2271static void
2272sbp_mgm_timeout(void *arg)
2273{
2274 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2275 struct sbp_dev *sdev = ocb->sdev;
2276 struct sbp_target *target = sdev->target;
2277
2278 device_printf(sdev->target->sbp->fd.dev,
2279 "%s:%s request timeout(mgm orb:0x%08x)\n",
2280 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2281 target->mgm_ocb_cur = NULL;
2282 sbp_free_ocb(sdev, ocb);
2283#if 0
2284 /* XXX */
2285 printf("run next request\n");
2286 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2287#endif
2288 device_printf(sdev->target->sbp->fd.dev,
2289 "%s:%s reset start\n",
2290 __func__, sdev->bustgtlun);
2291 sbp_reset_start(sdev);
2292}
2293
2294static void
2295sbp_timeout(void *arg)
2296{
2297 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2298 struct sbp_dev *sdev = ocb->sdev;
2299
2300 device_printf(sdev->target->sbp->fd.dev,
2301 "%s:%s request timeout(cmd orb:0x%08x) ... ",
2302 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2303
2304 sdev->timeout ++;
2305 switch(sdev->timeout) {
2306 case 1:
2307 printf("agent reset\n");
2308 SBP_LOCK(sdev->target->sbp);
2309 xpt_freeze_devq(sdev->path, 1);
2310 sdev->freeze ++;
2311 SBP_UNLOCK(sdev->target->sbp);
2312 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2313 sbp_agent_reset(sdev);
2314 break;
2315 case 2:
2316 case 3:
2317 sbp_target_reset(sdev, sdev->timeout - 1);
2318 break;
2319#if 0
2320 default:
2321 /* XXX give up */
2322 sbp_cam_detach_target(target);
2323 if (target->luns != NULL)
2324 free(target->luns, M_SBP);
2325 target->num_lun = 0;
2326 target->luns = NULL;
2327 target->fwdev = NULL;
2328#endif
2329 }
2330}
2331
2332static void
2333sbp_action1(struct cam_sim *sim, union ccb *ccb)
2334{
2335
2336 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2337 struct sbp_target *target = NULL;
2338 struct sbp_dev *sdev = NULL;
2339
2340 /* target:lun -> sdev mapping */
2341 if (sbp != NULL
2342 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2343 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2344 target = &sbp->targets[ccb->ccb_h.target_id];
2345 if (target->fwdev != NULL
2346 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2347 && ccb->ccb_h.target_lun < target->num_lun) {
2348 sdev = target->luns[ccb->ccb_h.target_lun];
2349 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2350 sdev->status != SBP_DEV_PROBE)
2351 sdev = NULL;
2352 }
2353 }
2354
2355SBP_DEBUG(1)
2356 if (sdev == NULL)
| 1503 csio->cdb_io.cdb_bytes[0],
1504 csio->cdb_io.cdb_bytes[1],
1505 csio->cdb_io.cdb_bytes[2],
1506 csio->cdb_io.cdb_bytes[3],
1507 csio->cdb_io.cdb_bytes[4],
1508 csio->cdb_io.cdb_bytes[5],
1509 csio->cdb_io.cdb_bytes[6],
1510 csio->cdb_io.cdb_bytes[7],
1511 csio->cdb_io.cdb_bytes[8],
1512 csio->cdb_io.cdb_bytes[9],
1513 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1514 csio->cdb_len, csio->dxfer_len,
1515 csio->sense_len);
1516}
1517
1518static void
1519sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1520{
1521 struct sbp_cmd_status *sbp_cmd_status;
1522 struct scsi_sense_data_fixed *sense;
1523
1524 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1525 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data;
1526
1527SBP_DEBUG(0)
1528 sbp_print_scsi_cmd(ocb);
1529 /* XXX need decode status */
1530 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1531 ocb->sdev->bustgtlun,
1532 sbp_cmd_status->status,
1533 sbp_cmd_status->sfmt,
1534 sbp_cmd_status->valid,
1535 sbp_cmd_status->s_key,
1536 sbp_cmd_status->s_code,
1537 sbp_cmd_status->s_qlfr,
1538 sbp_status->len);
1539END_DEBUG
1540
1541 switch (sbp_cmd_status->status) {
1542 case SCSI_STATUS_CHECK_COND:
1543 case SCSI_STATUS_BUSY:
1544 case SCSI_STATUS_CMD_TERMINATED:
1545 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1546 sense->error_code = SSD_CURRENT_ERROR;
1547 }else{
1548 sense->error_code = SSD_DEFERRED_ERROR;
1549 }
1550 if(sbp_cmd_status->valid)
1551 sense->error_code |= SSD_ERRCODE_VALID;
1552 sense->flags = sbp_cmd_status->s_key;
1553 if(sbp_cmd_status->mark)
1554 sense->flags |= SSD_FILEMARK;
1555 if(sbp_cmd_status->eom)
1556 sense->flags |= SSD_EOM;
1557 if(sbp_cmd_status->ill_len)
1558 sense->flags |= SSD_ILI;
1559
1560 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1561
1562 if (sbp_status->len <= 1)
1563 /* XXX not scsi status. shouldn't be happened */
1564 sense->extra_len = 0;
1565 else if (sbp_status->len <= 4)
1566 /* add_sense_code(_qual), info, cmd_spec_info */
1567 sense->extra_len = 6;
1568 else
1569 /* fru, sense_key_spec */
1570 sense->extra_len = 10;
1571
1572 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1573
1574 sense->add_sense_code = sbp_cmd_status->s_code;
1575 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1576 sense->fru = sbp_cmd_status->fru;
1577
1578 bcopy(&sbp_cmd_status->s_keydep[0],
1579 &sense->sense_key_spec[0], 3);
1580
1581 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1582 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1583 | CAM_AUTOSNS_VALID;
1584/*
1585{
1586 uint8_t j, *tmp;
1587 tmp = sense;
1588 for( j = 0 ; j < 32 ; j+=8){
1589 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1590 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1591 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1592 }
1593
1594}
1595*/
1596 break;
1597 default:
1598 device_printf(ocb->sdev->target->sbp->fd.dev,
1599 "%s:%s unknown scsi status 0x%x\n",
1600 __func__, ocb->sdev->bustgtlun,
1601 sbp_cmd_status->status);
1602 }
1603}
1604
1605static void
1606sbp_fix_inq_data(struct sbp_ocb *ocb)
1607{
1608 union ccb *ccb;
1609 struct sbp_dev *sdev;
1610 struct scsi_inquiry_data *inq;
1611
1612 ccb = ocb->ccb;
1613 sdev = ocb->sdev;
1614
1615 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1616 return;
1617SBP_DEBUG(1)
1618 device_printf(sdev->target->sbp->fd.dev,
1619 "%s:%s\n", __func__, sdev->bustgtlun);
1620END_DEBUG
1621 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1622 switch (SID_TYPE(inq)) {
1623 case T_DIRECT:
1624#if 0
1625 /*
1626 * XXX Convert Direct Access device to RBC.
1627 * I've never seen FireWire DA devices which support READ_6.
1628 */
1629 if (SID_TYPE(inq) == T_DIRECT)
1630 inq->device |= T_RBC; /* T_DIRECT == 0 */
1631#endif
1632 /* fall through */
1633 case T_RBC:
1634 /*
1635 * Override vendor/product/revision information.
1636 * Some devices sometimes return strange strings.
1637 */
1638#if 1
1639 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1640 bcopy(sdev->product, inq->product, sizeof(inq->product));
1641 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1642#endif
1643 break;
1644 }
1645 /*
1646 * Force to enable/disable tagged queuing.
1647 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
1648 */
1649 if (sbp_tags > 0)
1650 inq->flags |= SID_CmdQue;
1651 else if (sbp_tags < 0)
1652 inq->flags &= ~SID_CmdQue;
1653
1654}
1655
1656static void
1657sbp_recv1(struct fw_xfer *xfer)
1658{
1659 struct fw_pkt *rfp;
1660#if NEED_RESPONSE
1661 struct fw_pkt *sfp;
1662#endif
1663 struct sbp_softc *sbp;
1664 struct sbp_dev *sdev;
1665 struct sbp_ocb *ocb;
1666 struct sbp_login_res *login_res = NULL;
1667 struct sbp_status *sbp_status;
1668 struct sbp_target *target;
1669 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1670 uint32_t addr;
1671/*
1672 uint32_t *ld;
1673 ld = xfer->recv.buf;
1674printf("sbp %x %d %d %08x %08x %08x %08x\n",
1675 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1676printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1677printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1678*/
1679 sbp = (struct sbp_softc *)xfer->sc;
1680 if (xfer->resp != 0){
1681 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1682 goto done0;
1683 }
1684 if (xfer->recv.payload == NULL){
1685 printf("sbp_recv: xfer->recv.payload == NULL\n");
1686 goto done0;
1687 }
1688 rfp = &xfer->recv.hdr;
1689 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1690 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1691 goto done0;
1692 }
1693 sbp_status = (struct sbp_status *)xfer->recv.payload;
1694 addr = rfp->mode.wreqb.dest_lo;
1695SBP_DEBUG(2)
1696 printf("received address 0x%x\n", addr);
1697END_DEBUG
1698 t = SBP_ADDR2TRG(addr);
1699 if (t >= SBP_NUM_TARGETS) {
1700 device_printf(sbp->fd.dev,
1701 "sbp_recv1: invalid target %d\n", t);
1702 goto done0;
1703 }
1704 target = &sbp->targets[t];
1705 l = SBP_ADDR2LUN(addr);
1706 if (l >= target->num_lun || target->luns[l] == NULL) {
1707 device_printf(sbp->fd.dev,
1708 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1709 goto done0;
1710 }
1711 sdev = target->luns[l];
1712
1713 ocb = NULL;
1714 switch (sbp_status->src) {
1715 case 0:
1716 case 1:
1717 /* check mgm_ocb_cur first */
1718 ocb = target->mgm_ocb_cur;
1719 if (ocb != NULL) {
1720 if (OCB_MATCH(ocb, sbp_status)) {
1721 callout_stop(&target->mgm_ocb_timeout);
1722 target->mgm_ocb_cur = NULL;
1723 break;
1724 }
1725 }
1726 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1727 if (ocb == NULL) {
1728 device_printf(sdev->target->sbp->fd.dev,
1729#if defined(__DragonFly__) || __FreeBSD_version < 500000
1730 "%s:%s No ocb(%lx) on the queue\n",
1731#else
1732 "%s:%s No ocb(%x) on the queue\n",
1733#endif
1734 __func__,sdev->bustgtlun,
1735 ntohl(sbp_status->orb_lo));
1736 }
1737 break;
1738 case 2:
1739 /* unsolicit */
1740 device_printf(sdev->target->sbp->fd.dev,
1741 "%s:%s unsolicit status received\n",
1742 __func__, sdev->bustgtlun);
1743 break;
1744 default:
1745 device_printf(sdev->target->sbp->fd.dev,
1746 "%s:%s unknown sbp_status->src\n",
1747 __func__, sdev->bustgtlun);
1748 }
1749
1750 status_valid0 = (sbp_status->src < 2
1751 && sbp_status->resp == ORB_RES_CMPL
1752 && sbp_status->dead == 0);
1753 status_valid = (status_valid0 && sbp_status->status == 0);
1754
1755 if (!status_valid0 || debug > 2){
1756 int status;
1757SBP_DEBUG(0)
1758 device_printf(sdev->target->sbp->fd.dev,
1759 "%s:%s ORB status src:%x resp:%x dead:%x"
1760#if defined(__DragonFly__) || __FreeBSD_version < 500000
1761 " len:%x stat:%x orb:%x%08lx\n",
1762#else
1763 " len:%x stat:%x orb:%x%08x\n",
1764#endif
1765 __func__, sdev->bustgtlun,
1766 sbp_status->src, sbp_status->resp, sbp_status->dead,
1767 sbp_status->len, sbp_status->status,
1768 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1769END_DEBUG
1770 device_printf(sdev->target->sbp->fd.dev,
1771 "%s\n", sdev->bustgtlun);
1772 status = sbp_status->status;
1773 switch(sbp_status->resp) {
1774 case 0:
1775 if (status > MAX_ORB_STATUS0)
1776 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1777 else
1778 printf("%s\n", orb_status0[status]);
1779 break;
1780 case 1:
1781 printf("Obj: %s, Error: %s\n",
1782 orb_status1_object[(status>>6) & 3],
1783 orb_status1_serial_bus_error[status & 0xf]);
1784 break;
1785 case 2:
1786 printf("Illegal request\n");
1787 break;
1788 case 3:
1789 printf("Vendor dependent\n");
1790 break;
1791 default:
1792 printf("unknown respose code %d\n", sbp_status->resp);
1793 }
1794 }
1795
1796 /* we have to reset the fetch agent if it's dead */
1797 if (sbp_status->dead) {
1798 if (sdev->path) {
1799 SBP_LOCK(sbp);
1800 xpt_freeze_devq(sdev->path, 1);
1801 sdev->freeze ++;
1802 SBP_UNLOCK(sbp);
1803 }
1804 reset_agent = 1;
1805 }
1806
1807 if (ocb == NULL)
1808 goto done;
1809
1810 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1811 case ORB_FMT_NOP:
1812 break;
1813 case ORB_FMT_VED:
1814 break;
1815 case ORB_FMT_STD:
1816 switch(ocb->flags) {
1817 case OCB_ACT_MGM:
1818 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1819 reset_agent = 0;
1820 switch(orb_fun) {
1821 case ORB_FUN_LGI:
1822 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1823 login_res = sdev->login;
1824 login_res->len = ntohs(login_res->len);
1825 login_res->id = ntohs(login_res->id);
1826 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1827 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1828 if (status_valid) {
1829SBP_DEBUG(0)
1830 device_printf(sdev->target->sbp->fd.dev,
1831 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n",
1832 __func__, sdev->bustgtlun,
1833 login_res->len, login_res->id,
1834 login_res->cmd_hi, login_res->cmd_lo,
1835 ntohs(login_res->recon_hold));
1836END_DEBUG
1837 sbp_busy_timeout(sdev);
1838 } else {
1839 /* forgot logout? */
1840 device_printf(sdev->target->sbp->fd.dev,
1841 "%s:%s login failed\n",
1842 __func__, sdev->bustgtlun);
1843 sdev->status = SBP_DEV_RESET;
1844 }
1845 break;
1846 case ORB_FUN_RCN:
1847 login_res = sdev->login;
1848 if (status_valid) {
1849SBP_DEBUG(0)
1850 device_printf(sdev->target->sbp->fd.dev,
1851 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n",
1852 __func__, sdev->bustgtlun,
1853 login_res->len, login_res->id,
1854 login_res->cmd_hi, login_res->cmd_lo);
1855END_DEBUG
1856 if (sdev->status == SBP_DEV_ATTACHED)
1857 sbp_scan_dev(sdev);
1858 else
1859 sbp_agent_reset(sdev);
1860 } else {
1861 /* reconnection hold time exceed? */
1862SBP_DEBUG(0)
1863 device_printf(sdev->target->sbp->fd.dev,
1864 "%s:%s reconnect failed\n",
1865 __func__, sdev->bustgtlun);
1866END_DEBUG
1867 sbp_login(sdev);
1868 }
1869 break;
1870 case ORB_FUN_LGO:
1871 sdev->status = SBP_DEV_RESET;
1872 break;
1873 case ORB_FUN_RST:
1874 sbp_busy_timeout(sdev);
1875 break;
1876 case ORB_FUN_LUR:
1877 case ORB_FUN_ATA:
1878 case ORB_FUN_ATS:
1879 sbp_agent_reset(sdev);
1880 break;
1881 default:
1882 device_printf(sdev->target->sbp->fd.dev,
1883 "%s:%s unknown function %d\n",
1884 __func__, sdev->bustgtlun, orb_fun);
1885 break;
1886 }
1887 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1888 break;
1889 case OCB_ACT_CMD:
1890 sdev->timeout = 0;
1891 if(ocb->ccb != NULL){
1892 union ccb *ccb;
1893
1894 ccb = ocb->ccb;
1895 if(sbp_status->len > 1){
1896 sbp_scsi_status(sbp_status, ocb);
1897 }else{
1898 if(sbp_status->resp != ORB_RES_CMPL){
1899 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1900 }else{
1901 ccb->ccb_h.status = CAM_REQ_CMP;
1902 }
1903 }
1904 /* fix up inq data */
1905 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1906 sbp_fix_inq_data(ocb);
1907 SBP_LOCK(sbp);
1908 xpt_done(ccb);
1909 SBP_UNLOCK(sbp);
1910 }
1911 break;
1912 default:
1913 break;
1914 }
1915 }
1916
1917 if (!use_doorbell)
1918 sbp_free_ocb(sdev, ocb);
1919done:
1920 if (reset_agent)
1921 sbp_agent_reset(sdev);
1922
1923done0:
1924 xfer->recv.pay_len = SBP_RECV_LEN;
1925/* The received packet is usually small enough to be stored within
1926 * the buffer. In that case, the controller return ack_complete and
1927 * no respose is necessary.
1928 *
1929 * XXX fwohci.c and firewire.c should inform event_code such as
1930 * ack_complete or ack_pending to upper driver.
1931 */
1932#if NEED_RESPONSE
1933 xfer->send.off = 0;
1934 sfp = (struct fw_pkt *)xfer->send.buf;
1935 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1936 xfer->dst = sfp->mode.wres.dst;
1937 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1938 xfer->hand = sbp_loginres_callback;
1939
1940 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1941 sfp->mode.wres.tcode = FWTCODE_WRES;
1942 sfp->mode.wres.rtcode = 0;
1943 sfp->mode.wres.pri = 0;
1944
1945 fw_asyreq(xfer->fc, -1, xfer);
1946#else
1947 /* recycle */
1948 /* we don't need a lock here because bottom half is serialized */
1949 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1950#endif
1951
1952 return;
1953
1954}
1955
1956static void
1957sbp_recv(struct fw_xfer *xfer)
1958{
1959 int s;
1960
1961 s = splcam();
1962 sbp_recv1(xfer);
1963 splx(s);
1964}
1965/*
1966 * sbp_attach()
1967 */
1968static int
1969sbp_attach(device_t dev)
1970{
1971 struct sbp_softc *sbp;
1972 struct cam_devq *devq;
1973 struct firewire_comm *fc;
1974 int i, s, error;
1975
1976 if (DFLTPHYS > SBP_MAXPHYS)
1977 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than "
1978 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024,
1979 SBP_MAXPHYS / 1024);
1980
1981 if (!firewire_phydma_enable)
1982 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 "
1983 "for SBP over FireWire.\n");
1984SBP_DEBUG(0)
1985 printf("sbp_attach (cold=%d)\n", cold);
1986END_DEBUG
1987
1988 if (cold)
1989 sbp_cold ++;
1990 sbp = ((struct sbp_softc *)device_get_softc(dev));
1991 bzero(sbp, sizeof(struct sbp_softc));
1992 sbp->fd.dev = dev;
1993 sbp->fd.fc = fc = device_get_ivars(dev);
1994 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF);
1995
1996 if (max_speed < 0)
1997 max_speed = fc->speed;
1998
1999 error = bus_dma_tag_create(/*parent*/fc->dmat,
2000 /* XXX shoud be 4 for sane backend? */
2001 /*alignment*/1,
2002 /*boundary*/0,
2003 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
2004 /*highaddr*/BUS_SPACE_MAXADDR,
2005 /*filter*/NULL, /*filterarg*/NULL,
2006 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
2007 /*maxsegsz*/SBP_SEG_MAX,
2008 /*flags*/BUS_DMA_ALLOCNOW,
2009#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
2010 /*lockfunc*/busdma_lock_mutex,
2011 /*lockarg*/&sbp->mtx,
2012#endif
2013 &sbp->dmat);
2014 if (error != 0) {
2015 printf("sbp_attach: Could not allocate DMA tag "
2016 "- error %d\n", error);
2017 return (ENOMEM);
2018 }
2019
2020 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
2021 if (devq == NULL)
2022 return (ENXIO);
2023
2024 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
2025 sbp->targets[i].fwdev = NULL;
2026 sbp->targets[i].luns = NULL;
2027 }
2028
2029 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
2030 device_get_unit(dev),
2031 &sbp->mtx,
2032 /*untagged*/ 1,
2033 /*tagged*/ SBP_QUEUE_LEN - 1,
2034 devq);
2035
2036 if (sbp->sim == NULL) {
2037 cam_simq_free(devq);
2038 return (ENXIO);
2039 }
2040
2041 SBP_LOCK(sbp);
2042 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS)
2043 goto fail;
2044
2045 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim),
2046 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2047 xpt_bus_deregister(cam_sim_path(sbp->sim));
2048 goto fail;
2049 }
2050 SBP_UNLOCK(sbp);
2051
2052 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
2053 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
2054 sbp->fwb.end = sbp->fwb.start + 0xffff;
2055 /* pre-allocate xfer */
2056 STAILQ_INIT(&sbp->fwb.xferlist);
2057 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP,
2058 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2,
2059 fc, (void *)sbp, sbp_recv);
2060
2061 fw_bindadd(fc, &sbp->fwb);
2062
2063 sbp->fd.post_busreset = sbp_post_busreset;
2064 sbp->fd.post_explore = sbp_post_explore;
2065
2066 if (fc->status != -1) {
2067 s = splfw();
2068 sbp_post_busreset((void *)sbp);
2069 sbp_post_explore((void *)sbp);
2070 splx(s);
2071 }
2072 SBP_LOCK(sbp);
2073 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
2074 SBP_UNLOCK(sbp);
2075
2076 return (0);
2077fail:
2078 SBP_UNLOCK(sbp);
2079 cam_sim_free(sbp->sim, /*free_devq*/TRUE);
2080 return (ENXIO);
2081}
2082
2083static int
2084sbp_logout_all(struct sbp_softc *sbp)
2085{
2086 struct sbp_target *target;
2087 struct sbp_dev *sdev;
2088 int i, j;
2089
2090SBP_DEBUG(0)
2091 printf("sbp_logout_all\n");
2092END_DEBUG
2093 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
2094 target = &sbp->targets[i];
2095 if (target->luns == NULL)
2096 continue;
2097 for (j = 0; j < target->num_lun; j++) {
2098 sdev = target->luns[j];
2099 if (sdev == NULL)
2100 continue;
2101 callout_stop(&sdev->login_callout);
2102 if (sdev->status >= SBP_DEV_TOATTACH &&
2103 sdev->status <= SBP_DEV_ATTACHED)
2104 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
2105 }
2106 }
2107
2108 return 0;
2109}
2110
2111static int
2112sbp_shutdown(device_t dev)
2113{
2114 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2115
2116 sbp_logout_all(sbp);
2117 return (0);
2118}
2119
2120static void
2121sbp_free_sdev(struct sbp_dev *sdev)
2122{
2123 int i;
2124
2125 if (sdev == NULL)
2126 return;
2127 for (i = 0; i < SBP_QUEUE_LEN; i++)
2128 bus_dmamap_destroy(sdev->target->sbp->dmat,
2129 sdev->ocb[i].dmamap);
2130 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
2131 free(sdev, M_SBP);
2132 sdev = NULL;
2133}
2134
2135static void
2136sbp_free_target(struct sbp_target *target)
2137{
2138 struct sbp_softc *sbp;
2139 struct fw_xfer *xfer, *next;
2140 int i;
2141
2142 if (target->luns == NULL)
2143 return;
2144 callout_stop(&target->mgm_ocb_timeout);
2145 sbp = target->sbp;
2146 for (i = 0; i < target->num_lun; i++)
2147 sbp_free_sdev(target->luns[i]);
2148
2149 for (xfer = STAILQ_FIRST(&target->xferlist);
2150 xfer != NULL; xfer = next) {
2151 next = STAILQ_NEXT(xfer, link);
2152 fw_xfer_free_buf(xfer);
2153 }
2154 STAILQ_INIT(&target->xferlist);
2155 free(target->luns, M_SBP);
2156 target->num_lun = 0;
2157 target->luns = NULL;
2158 target->fwdev = NULL;
2159}
2160
2161static int
2162sbp_detach(device_t dev)
2163{
2164 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2165 struct firewire_comm *fc = sbp->fd.fc;
2166 int i;
2167
2168SBP_DEBUG(0)
2169 printf("sbp_detach\n");
2170END_DEBUG
2171
2172 for (i = 0; i < SBP_NUM_TARGETS; i ++)
2173 sbp_cam_detach_target(&sbp->targets[i]);
2174
2175 SBP_LOCK(sbp);
2176 xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2177 xpt_free_path(sbp->path);
2178 xpt_bus_deregister(cam_sim_path(sbp->sim));
2179 cam_sim_free(sbp->sim, /*free_devq*/ TRUE);
2180 SBP_UNLOCK(sbp);
2181
2182 sbp_logout_all(sbp);
2183
2184 /* XXX wait for logout completion */
2185 pause("sbpdtc", hz/2);
2186
2187 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2188 sbp_free_target(&sbp->targets[i]);
2189
2190 fw_bindremove(fc, &sbp->fwb);
2191 fw_xferlist_remove(&sbp->fwb.xferlist);
2192
2193 bus_dma_tag_destroy(sbp->dmat);
2194 mtx_destroy(&sbp->mtx);
2195
2196 return (0);
2197}
2198
2199static void
2200sbp_cam_detach_sdev(struct sbp_dev *sdev)
2201{
2202 if (sdev == NULL)
2203 return;
2204 if (sdev->status == SBP_DEV_DEAD)
2205 return;
2206 if (sdev->status == SBP_DEV_RESET)
2207 return;
2208 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2209 if (sdev->path) {
2210 SBP_LOCK(sdev->target->sbp);
2211 xpt_release_devq(sdev->path,
2212 sdev->freeze, TRUE);
2213 sdev->freeze = 0;
2214 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2215 xpt_free_path(sdev->path);
2216 sdev->path = NULL;
2217 SBP_UNLOCK(sdev->target->sbp);
2218 }
2219}
2220
2221static void
2222sbp_cam_detach_target(struct sbp_target *target)
2223{
2224 int i;
2225
2226 if (target->luns != NULL) {
2227SBP_DEBUG(0)
2228 printf("sbp_detach_target %d\n", target->target_id);
2229END_DEBUG
2230 callout_stop(&target->scan_callout);
2231 for (i = 0; i < target->num_lun; i++)
2232 sbp_cam_detach_sdev(target->luns[i]);
2233 }
2234}
2235
2236static void
2237sbp_target_reset(struct sbp_dev *sdev, int method)
2238{
2239 int i;
2240 struct sbp_target *target = sdev->target;
2241 struct sbp_dev *tsdev;
2242
2243 for (i = 0; i < target->num_lun; i++) {
2244 tsdev = target->luns[i];
2245 if (tsdev == NULL)
2246 continue;
2247 if (tsdev->status == SBP_DEV_DEAD)
2248 continue;
2249 if (tsdev->status == SBP_DEV_RESET)
2250 continue;
2251 SBP_LOCK(target->sbp);
2252 xpt_freeze_devq(tsdev->path, 1);
2253 tsdev->freeze ++;
2254 SBP_UNLOCK(target->sbp);
2255 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2256 if (method == 2)
2257 tsdev->status = SBP_DEV_LOGIN;
2258 }
2259 switch(method) {
2260 case 1:
2261 printf("target reset\n");
2262 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2263 break;
2264 case 2:
2265 printf("reset start\n");
2266 sbp_reset_start(sdev);
2267 break;
2268 }
2269
2270}
2271
2272static void
2273sbp_mgm_timeout(void *arg)
2274{
2275 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2276 struct sbp_dev *sdev = ocb->sdev;
2277 struct sbp_target *target = sdev->target;
2278
2279 device_printf(sdev->target->sbp->fd.dev,
2280 "%s:%s request timeout(mgm orb:0x%08x)\n",
2281 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2282 target->mgm_ocb_cur = NULL;
2283 sbp_free_ocb(sdev, ocb);
2284#if 0
2285 /* XXX */
2286 printf("run next request\n");
2287 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2288#endif
2289 device_printf(sdev->target->sbp->fd.dev,
2290 "%s:%s reset start\n",
2291 __func__, sdev->bustgtlun);
2292 sbp_reset_start(sdev);
2293}
2294
2295static void
2296sbp_timeout(void *arg)
2297{
2298 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2299 struct sbp_dev *sdev = ocb->sdev;
2300
2301 device_printf(sdev->target->sbp->fd.dev,
2302 "%s:%s request timeout(cmd orb:0x%08x) ... ",
2303 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2304
2305 sdev->timeout ++;
2306 switch(sdev->timeout) {
2307 case 1:
2308 printf("agent reset\n");
2309 SBP_LOCK(sdev->target->sbp);
2310 xpt_freeze_devq(sdev->path, 1);
2311 sdev->freeze ++;
2312 SBP_UNLOCK(sdev->target->sbp);
2313 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2314 sbp_agent_reset(sdev);
2315 break;
2316 case 2:
2317 case 3:
2318 sbp_target_reset(sdev, sdev->timeout - 1);
2319 break;
2320#if 0
2321 default:
2322 /* XXX give up */
2323 sbp_cam_detach_target(target);
2324 if (target->luns != NULL)
2325 free(target->luns, M_SBP);
2326 target->num_lun = 0;
2327 target->luns = NULL;
2328 target->fwdev = NULL;
2329#endif
2330 }
2331}
2332
2333static void
2334sbp_action1(struct cam_sim *sim, union ccb *ccb)
2335{
2336
2337 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2338 struct sbp_target *target = NULL;
2339 struct sbp_dev *sdev = NULL;
2340
2341 /* target:lun -> sdev mapping */
2342 if (sbp != NULL
2343 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2344 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2345 target = &sbp->targets[ccb->ccb_h.target_id];
2346 if (target->fwdev != NULL
2347 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2348 && ccb->ccb_h.target_lun < target->num_lun) {
2349 sdev = target->luns[ccb->ccb_h.target_lun];
2350 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2351 sdev->status != SBP_DEV_PROBE)
2352 sdev = NULL;
2353 }
2354 }
2355
2356SBP_DEBUG(1)
2357 if (sdev == NULL)
|
2357 printf("invalid target %d lun %d\n",
2358 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
| 2358 printf("invalid target %d lun %jx\n",
2359 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun);
|
2359END_DEBUG
2360
2361 switch (ccb->ccb_h.func_code) {
2362 case XPT_SCSI_IO:
2363 case XPT_RESET_DEV:
2364 case XPT_GET_TRAN_SETTINGS:
2365 case XPT_SET_TRAN_SETTINGS:
2366 case XPT_CALC_GEOMETRY:
2367 if (sdev == NULL) {
2368SBP_DEBUG(1)
| 2360END_DEBUG
2361
2362 switch (ccb->ccb_h.func_code) {
2363 case XPT_SCSI_IO:
2364 case XPT_RESET_DEV:
2365 case XPT_GET_TRAN_SETTINGS:
2366 case XPT_SET_TRAN_SETTINGS:
2367 case XPT_CALC_GEOMETRY:
2368 if (sdev == NULL) {
2369SBP_DEBUG(1)
|
2369 printf("%s:%d:%d:func_code 0x%04x: "
| 2370 printf("%s:%d:%jx:func_code 0x%04x: "
|
2370 "Invalid target (target needed)\n",
2371 device_get_nameunit(sbp->fd.dev),
| 2371 "Invalid target (target needed)\n",
2372 device_get_nameunit(sbp->fd.dev),
|
2372 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
| 2373 ccb->ccb_h.target_id,
2374 (uintmax_t)ccb->ccb_h.target_lun,
|
2373 ccb->ccb_h.func_code);
2374END_DEBUG
2375
2376 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2377 xpt_done(ccb);
2378 return;
2379 }
2380 break;
2381 case XPT_PATH_INQ:
2382 case XPT_NOOP:
2383 /* The opcodes sometimes aimed at a target (sc is valid),
2384 * sometimes aimed at the SIM (sc is invalid and target is
2385 * CAM_TARGET_WILDCARD)
2386 */
2387 if (sbp == NULL &&
2388 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2389SBP_DEBUG(0)
| 2375 ccb->ccb_h.func_code);
2376END_DEBUG
2377
2378 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2379 xpt_done(ccb);
2380 return;
2381 }
2382 break;
2383 case XPT_PATH_INQ:
2384 case XPT_NOOP:
2385 /* The opcodes sometimes aimed at a target (sc is valid),
2386 * sometimes aimed at the SIM (sc is invalid and target is
2387 * CAM_TARGET_WILDCARD)
2388 */
2389 if (sbp == NULL &&
2390 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2391SBP_DEBUG(0)
|
2390 printf("%s:%d:%d func_code 0x%04x: "
| 2392 printf("%s:%d:%jx func_code 0x%04x: "
|
2391 "Invalid target (no wildcard)\n",
2392 device_get_nameunit(sbp->fd.dev),
| 2393 "Invalid target (no wildcard)\n",
2394 device_get_nameunit(sbp->fd.dev),
|
2393 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
| 2395 ccb->ccb_h.target_id,
2396 (uintmax_t)ccb->ccb_h.target_lun,
|
2394 ccb->ccb_h.func_code);
2395END_DEBUG
2396 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2397 xpt_done(ccb);
2398 return;
2399 }
2400 break;
2401 default:
2402 /* XXX Hm, we should check the input parameters */
2403 break;
2404 }
2405
2406 switch (ccb->ccb_h.func_code) {
2407 case XPT_SCSI_IO:
2408 {
2409 struct ccb_scsiio *csio;
2410 struct sbp_ocb *ocb;
2411 int speed;
2412 void *cdb;
2413
2414 csio = &ccb->csio;
2415 mtx_assert(sim->mtx, MA_OWNED);
2416
2417SBP_DEBUG(2)
| 2397 ccb->ccb_h.func_code);
2398END_DEBUG
2399 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2400 xpt_done(ccb);
2401 return;
2402 }
2403 break;
2404 default:
2405 /* XXX Hm, we should check the input parameters */
2406 break;
2407 }
2408
2409 switch (ccb->ccb_h.func_code) {
2410 case XPT_SCSI_IO:
2411 {
2412 struct ccb_scsiio *csio;
2413 struct sbp_ocb *ocb;
2414 int speed;
2415 void *cdb;
2416
2417 csio = &ccb->csio;
2418 mtx_assert(sim->mtx, MA_OWNED);
2419
2420SBP_DEBUG(2)
|
2418 printf("%s:%d:%d XPT_SCSI_IO: "
| 2421 printf("%s:%d:%jx XPT_SCSI_IO: "
|
2419 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2420 ", flags: 0x%02x, "
2421 "%db cmd/%db data/%db sense\n",
2422 device_get_nameunit(sbp->fd.dev),
| 2422 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2423 ", flags: 0x%02x, "
2424 "%db cmd/%db data/%db sense\n",
2425 device_get_nameunit(sbp->fd.dev),
|
2423 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
| 2426 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun,
|
2424 csio->cdb_io.cdb_bytes[0],
2425 csio->cdb_io.cdb_bytes[1],
2426 csio->cdb_io.cdb_bytes[2],
2427 csio->cdb_io.cdb_bytes[3],
2428 csio->cdb_io.cdb_bytes[4],
2429 csio->cdb_io.cdb_bytes[5],
2430 csio->cdb_io.cdb_bytes[6],
2431 csio->cdb_io.cdb_bytes[7],
2432 csio->cdb_io.cdb_bytes[8],
2433 csio->cdb_io.cdb_bytes[9],
2434 ccb->ccb_h.flags & CAM_DIR_MASK,
2435 csio->cdb_len, csio->dxfer_len,
2436 csio->sense_len);
2437END_DEBUG
2438 if(sdev == NULL){
2439 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2440 xpt_done(ccb);
2441 return;
2442 }
2443#if 0
2444 /* if we are in probe stage, pass only probe commands */
2445 if (sdev->status == SBP_DEV_PROBE) {
2446 char *name;
2447 name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2448 printf("probe stage, periph name: %s\n", name);
2449 if (strcmp(name, "probe") != 0) {
2450 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2451 xpt_done(ccb);
2452 return;
2453 }
2454 }
2455#endif
2456 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2457 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2458 if (sdev->freeze == 0) {
2459 SBP_LOCK(sdev->target->sbp);
2460 xpt_freeze_devq(sdev->path, 1);
2461 sdev->freeze ++;
2462 SBP_UNLOCK(sdev->target->sbp);
2463 }
2464 xpt_done(ccb);
2465 return;
2466 }
2467
2468 ocb->flags = OCB_ACT_CMD;
2469 ocb->sdev = sdev;
2470 ocb->ccb = ccb;
2471 ccb->ccb_h.ccb_sdev_ptr = sdev;
2472 ocb->orb[0] = htonl(1 << 31);
2473 ocb->orb[1] = 0;
2474 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2475 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2476 speed = min(target->fwdev->speed, max_speed);
2477 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2478 | ORB_CMD_MAXP(speed + 7));
2479 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2480 ocb->orb[4] |= htonl(ORB_CMD_IN);
2481 }
2482
2483 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2484 cdb = (void *)csio->cdb_io.cdb_ptr;
2485 else
2486 cdb = (void *)&csio->cdb_io.cdb_bytes;
2487 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2488/*
2489printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2490printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2491*/
2492 if (ccb->csio.dxfer_len > 0) {
2493 int error;
2494
2495 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat,
2496 /*dma map*/ocb->dmamap,
2497 ccb,
2498 sbp_execute_ocb,
2499 ocb,
2500 /*flags*/0);
2501 if (error)
2502 printf("sbp: bus_dmamap_load error %d\n", error);
2503 } else
2504 sbp_execute_ocb(ocb, NULL, 0, 0);
2505 break;
2506 }
2507 case XPT_CALC_GEOMETRY:
2508 {
2509 struct ccb_calc_geometry *ccg;
2510#if defined(__DragonFly__) || __FreeBSD_version < 501100
2511 uint32_t size_mb;
2512 uint32_t secs_per_cylinder;
2513 int extended = 1;
2514#endif
2515
2516 ccg = &ccb->ccg;
2517 if (ccg->block_size == 0) {
2518 printf("sbp_action1: block_size is 0.\n");
2519 ccb->ccb_h.status = CAM_REQ_INVALID;
2520 xpt_done(ccb);
2521 break;
2522 }
2523SBP_DEBUG(1)
| 2427 csio->cdb_io.cdb_bytes[0],
2428 csio->cdb_io.cdb_bytes[1],
2429 csio->cdb_io.cdb_bytes[2],
2430 csio->cdb_io.cdb_bytes[3],
2431 csio->cdb_io.cdb_bytes[4],
2432 csio->cdb_io.cdb_bytes[5],
2433 csio->cdb_io.cdb_bytes[6],
2434 csio->cdb_io.cdb_bytes[7],
2435 csio->cdb_io.cdb_bytes[8],
2436 csio->cdb_io.cdb_bytes[9],
2437 ccb->ccb_h.flags & CAM_DIR_MASK,
2438 csio->cdb_len, csio->dxfer_len,
2439 csio->sense_len);
2440END_DEBUG
2441 if(sdev == NULL){
2442 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2443 xpt_done(ccb);
2444 return;
2445 }
2446#if 0
2447 /* if we are in probe stage, pass only probe commands */
2448 if (sdev->status == SBP_DEV_PROBE) {
2449 char *name;
2450 name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2451 printf("probe stage, periph name: %s\n", name);
2452 if (strcmp(name, "probe") != 0) {
2453 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2454 xpt_done(ccb);
2455 return;
2456 }
2457 }
2458#endif
2459 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2460 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2461 if (sdev->freeze == 0) {
2462 SBP_LOCK(sdev->target->sbp);
2463 xpt_freeze_devq(sdev->path, 1);
2464 sdev->freeze ++;
2465 SBP_UNLOCK(sdev->target->sbp);
2466 }
2467 xpt_done(ccb);
2468 return;
2469 }
2470
2471 ocb->flags = OCB_ACT_CMD;
2472 ocb->sdev = sdev;
2473 ocb->ccb = ccb;
2474 ccb->ccb_h.ccb_sdev_ptr = sdev;
2475 ocb->orb[0] = htonl(1 << 31);
2476 ocb->orb[1] = 0;
2477 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2478 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2479 speed = min(target->fwdev->speed, max_speed);
2480 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2481 | ORB_CMD_MAXP(speed + 7));
2482 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2483 ocb->orb[4] |= htonl(ORB_CMD_IN);
2484 }
2485
2486 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2487 cdb = (void *)csio->cdb_io.cdb_ptr;
2488 else
2489 cdb = (void *)&csio->cdb_io.cdb_bytes;
2490 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2491/*
2492printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2493printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2494*/
2495 if (ccb->csio.dxfer_len > 0) {
2496 int error;
2497
2498 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat,
2499 /*dma map*/ocb->dmamap,
2500 ccb,
2501 sbp_execute_ocb,
2502 ocb,
2503 /*flags*/0);
2504 if (error)
2505 printf("sbp: bus_dmamap_load error %d\n", error);
2506 } else
2507 sbp_execute_ocb(ocb, NULL, 0, 0);
2508 break;
2509 }
2510 case XPT_CALC_GEOMETRY:
2511 {
2512 struct ccb_calc_geometry *ccg;
2513#if defined(__DragonFly__) || __FreeBSD_version < 501100
2514 uint32_t size_mb;
2515 uint32_t secs_per_cylinder;
2516 int extended = 1;
2517#endif
2518
2519 ccg = &ccb->ccg;
2520 if (ccg->block_size == 0) {
2521 printf("sbp_action1: block_size is 0.\n");
2522 ccb->ccb_h.status = CAM_REQ_INVALID;
2523 xpt_done(ccb);
2524 break;
2525 }
2526SBP_DEBUG(1)
|
2524 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
| 2527 printf("%s:%d:%d:%jx:XPT_CALC_GEOMETRY: "
|
2525#if defined(__DragonFly__) || __FreeBSD_version < 500000
2526 "Volume size = %d\n",
2527#else
2528 "Volume size = %jd\n",
2529#endif
2530 device_get_nameunit(sbp->fd.dev),
2531 cam_sim_path(sbp->sim),
| 2528#if defined(__DragonFly__) || __FreeBSD_version < 500000
2529 "Volume size = %d\n",
2530#else
2531 "Volume size = %jd\n",
2532#endif
2533 device_get_nameunit(sbp->fd.dev),
2534 cam_sim_path(sbp->sim),
|
2532 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
| 2535 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun,
|
2533#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2534 (uintmax_t)
2535#endif
2536 ccg->volume_size);
2537END_DEBUG
2538
2539#if defined(__DragonFly__) || __FreeBSD_version < 501100
2540 size_mb = ccg->volume_size
2541 / ((1024L * 1024L) / ccg->block_size);
2542
2543 if (size_mb > 1024 && extended) {
2544 ccg->heads = 255;
2545 ccg->secs_per_track = 63;
2546 } else {
2547 ccg->heads = 64;
2548 ccg->secs_per_track = 32;
2549 }
2550 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2551 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2552 ccb->ccb_h.status = CAM_REQ_CMP;
2553#else
2554 cam_calc_geometry(ccg, /*extended*/1);
2555#endif
2556 xpt_done(ccb);
2557 break;
2558 }
2559 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
2560 {
2561
2562SBP_DEBUG(1)
2563 printf("%s:%d:XPT_RESET_BUS: \n",
2564 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2565END_DEBUG
2566
2567 ccb->ccb_h.status = CAM_REQ_INVALID;
2568 xpt_done(ccb);
2569 break;
2570 }
2571 case XPT_PATH_INQ: /* Path routing inquiry */
2572 {
2573 struct ccb_pathinq *cpi = &ccb->cpi;
2574
2575SBP_DEBUG(1)
| 2536#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2537 (uintmax_t)
2538#endif
2539 ccg->volume_size);
2540END_DEBUG
2541
2542#if defined(__DragonFly__) || __FreeBSD_version < 501100
2543 size_mb = ccg->volume_size
2544 / ((1024L * 1024L) / ccg->block_size);
2545
2546 if (size_mb > 1024 && extended) {
2547 ccg->heads = 255;
2548 ccg->secs_per_track = 63;
2549 } else {
2550 ccg->heads = 64;
2551 ccg->secs_per_track = 32;
2552 }
2553 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2554 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2555 ccb->ccb_h.status = CAM_REQ_CMP;
2556#else
2557 cam_calc_geometry(ccg, /*extended*/1);
2558#endif
2559 xpt_done(ccb);
2560 break;
2561 }
2562 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
2563 {
2564
2565SBP_DEBUG(1)
2566 printf("%s:%d:XPT_RESET_BUS: \n",
2567 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2568END_DEBUG
2569
2570 ccb->ccb_h.status = CAM_REQ_INVALID;
2571 xpt_done(ccb);
2572 break;
2573 }
2574 case XPT_PATH_INQ: /* Path routing inquiry */
2575 {
2576 struct ccb_pathinq *cpi = &ccb->cpi;
2577
2578SBP_DEBUG(1)
|
2576 printf("%s:%d:%d XPT_PATH_INQ:.\n",
| 2579 printf("%s:%d:%jx XPT_PATH_INQ:.\n",
|
2577 device_get_nameunit(sbp->fd.dev),
| 2580 device_get_nameunit(sbp->fd.dev),
|
2578 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
| 2581 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun);
|
2579END_DEBUG
2580 cpi->version_num = 1; /* XXX??? */
2581 cpi->hba_inquiry = PI_TAG_ABLE;
2582 cpi->target_sprt = 0;
2583 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2584 cpi->hba_eng_cnt = 0;
2585 cpi->max_target = SBP_NUM_TARGETS - 1;
2586 cpi->max_lun = SBP_NUM_LUNS - 1;
2587 cpi->initiator_id = SBP_INITIATOR;
2588 cpi->bus_id = sim->bus_id;
2589 cpi->base_transfer_speed = 400 * 1000 / 8;
2590 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2591 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2592 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2593 cpi->unit_number = sim->unit_number;
2594 cpi->transport = XPORT_SPI; /* XX should have a FireWire */
2595 cpi->transport_version = 2;
2596 cpi->protocol = PROTO_SCSI;
2597 cpi->protocol_version = SCSI_REV_2;
2598
2599 cpi->ccb_h.status = CAM_REQ_CMP;
2600 xpt_done(ccb);
2601 break;
2602 }
2603 case XPT_GET_TRAN_SETTINGS:
2604 {
2605 struct ccb_trans_settings *cts = &ccb->cts;
2606 struct ccb_trans_settings_scsi *scsi =
2607 &cts->proto_specific.scsi;
2608 struct ccb_trans_settings_spi *spi =
2609 &cts->xport_specific.spi;
2610
2611 cts->protocol = PROTO_SCSI;
2612 cts->protocol_version = SCSI_REV_2;
2613 cts->transport = XPORT_SPI; /* should have a FireWire */
2614 cts->transport_version = 2;
2615 spi->valid = CTS_SPI_VALID_DISC;
2616 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2617 scsi->valid = CTS_SCSI_VALID_TQ;
2618 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2619SBP_DEBUG(1)
| 2582END_DEBUG
2583 cpi->version_num = 1; /* XXX??? */
2584 cpi->hba_inquiry = PI_TAG_ABLE;
2585 cpi->target_sprt = 0;
2586 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2587 cpi->hba_eng_cnt = 0;
2588 cpi->max_target = SBP_NUM_TARGETS - 1;
2589 cpi->max_lun = SBP_NUM_LUNS - 1;
2590 cpi->initiator_id = SBP_INITIATOR;
2591 cpi->bus_id = sim->bus_id;
2592 cpi->base_transfer_speed = 400 * 1000 / 8;
2593 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2594 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2595 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2596 cpi->unit_number = sim->unit_number;
2597 cpi->transport = XPORT_SPI; /* XX should have a FireWire */
2598 cpi->transport_version = 2;
2599 cpi->protocol = PROTO_SCSI;
2600 cpi->protocol_version = SCSI_REV_2;
2601
2602 cpi->ccb_h.status = CAM_REQ_CMP;
2603 xpt_done(ccb);
2604 break;
2605 }
2606 case XPT_GET_TRAN_SETTINGS:
2607 {
2608 struct ccb_trans_settings *cts = &ccb->cts;
2609 struct ccb_trans_settings_scsi *scsi =
2610 &cts->proto_specific.scsi;
2611 struct ccb_trans_settings_spi *spi =
2612 &cts->xport_specific.spi;
2613
2614 cts->protocol = PROTO_SCSI;
2615 cts->protocol_version = SCSI_REV_2;
2616 cts->transport = XPORT_SPI; /* should have a FireWire */
2617 cts->transport_version = 2;
2618 spi->valid = CTS_SPI_VALID_DISC;
2619 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2620 scsi->valid = CTS_SCSI_VALID_TQ;
2621 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2622SBP_DEBUG(1)
|
2620 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
| 2623 printf("%s:%d:%jx XPT_GET_TRAN_SETTINGS:.\n",
|
2621 device_get_nameunit(sbp->fd.dev),
| 2624 device_get_nameunit(sbp->fd.dev),
|
2622 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
| 2625 ccb->ccb_h.target_id, (uintmax_t)ccb->ccb_h.target_lun);
|
2623END_DEBUG
2624 cts->ccb_h.status = CAM_REQ_CMP;
2625 xpt_done(ccb);
2626 break;
2627 }
2628 case XPT_ABORT:
2629 ccb->ccb_h.status = CAM_UA_ABORT;
2630 xpt_done(ccb);
2631 break;
2632 case XPT_SET_TRAN_SETTINGS:
2633 /* XXX */
2634 default:
2635 ccb->ccb_h.status = CAM_REQ_INVALID;
2636 xpt_done(ccb);
2637 break;
2638 }
2639 return;
2640}
2641
2642static void
2643sbp_action(struct cam_sim *sim, union ccb *ccb)
2644{
2645 int s;
2646
2647 s = splfw();
2648 sbp_action1(sim, ccb);
2649 splx(s);
2650}
2651
2652static void
2653sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
2654{
2655 int i;
2656 struct sbp_ocb *ocb;
2657 struct sbp_ocb *prev;
2658 bus_dma_segment_t *s;
2659
2660 if (error)
2661 printf("sbp_execute_ocb: error=%d\n", error);
2662
2663 ocb = (struct sbp_ocb *)arg;
2664
2665SBP_DEBUG(2)
2666 printf("sbp_execute_ocb: seg %d", seg);
2667 for (i = 0; i < seg; i++)
2668#if defined(__DragonFly__) || __FreeBSD_version < 500000
2669 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2670#else
2671 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2672 (uintmax_t)segments[i].ds_len);
2673#endif
2674 printf("\n");
2675END_DEBUG
2676
2677 if (seg == 1) {
2678 /* direct pointer */
2679 s = &segments[0];
2680 if (s->ds_len > SBP_SEG_MAX)
2681 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2682 ocb->orb[3] = htonl(s->ds_addr);
2683 ocb->orb[4] |= htonl(s->ds_len);
2684 } else if(seg > 1) {
2685 /* page table */
2686 for (i = 0; i < seg; i++) {
2687 s = &segments[i];
2688SBP_DEBUG(0)
2689 /* XXX LSI Logic "< 16 byte" bug might be hit */
2690 if (s->ds_len < 16)
2691 printf("sbp_execute_ocb: warning, "
2692#if defined(__DragonFly__) || __FreeBSD_version < 500000
2693 "segment length(%d) is less than 16."
2694#else
2695 "segment length(%zd) is less than 16."
2696#endif
2697 "(seg=%d/%d)\n", (size_t)s->ds_len, i+1, seg);
2698END_DEBUG
2699 if (s->ds_len > SBP_SEG_MAX)
2700 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2701 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2702 ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2703 }
2704 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2705 }
2706
2707 if (seg > 0)
2708 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2709 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2710 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2711 prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2712 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2713 if (use_doorbell) {
2714 if (prev == NULL) {
2715 if (ocb->sdev->last_ocb != NULL)
2716 sbp_doorbell(ocb->sdev);
2717 else
2718 sbp_orb_pointer(ocb->sdev, ocb);
2719 }
2720 } else {
2721 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2722 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2723 sbp_orb_pointer(ocb->sdev, ocb);
2724 }
2725 }
2726}
2727
2728static void
2729sbp_poll(struct cam_sim *sim)
2730{
2731 struct sbp_softc *sbp;
2732 struct firewire_comm *fc;
2733
2734 sbp = (struct sbp_softc *)sim->softc;
2735 fc = sbp->fd.fc;
2736
2737 fc->poll(fc, 0, -1);
2738
2739 return;
2740}
2741
2742static struct sbp_ocb *
2743sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2744{
2745 struct sbp_ocb *ocb;
2746 struct sbp_ocb *next;
2747 int s = splfw(), order = 0;
2748 int flags;
2749
2750SBP_DEBUG(1)
2751 device_printf(sdev->target->sbp->fd.dev,
2752#if defined(__DragonFly__) || __FreeBSD_version < 500000
2753 "%s:%s 0x%08lx src %d\n",
2754#else
2755 "%s:%s 0x%08x src %d\n",
2756#endif
2757 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src);
2758END_DEBUG
2759 SBP_LOCK(sdev->target->sbp);
2760 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2761 next = STAILQ_NEXT(ocb, ocb);
2762 flags = ocb->flags;
2763 if (OCB_MATCH(ocb, sbp_status)) {
2764 /* found */
2765 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2766 if (ocb->ccb != NULL)
2767 untimeout(sbp_timeout, (caddr_t)ocb,
2768 ocb->timeout_ch);
2769 if (ntohl(ocb->orb[4]) & 0xffff) {
2770 bus_dmamap_sync(sdev->target->sbp->dmat,
2771 ocb->dmamap,
2772 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2773 BUS_DMASYNC_POSTREAD :
2774 BUS_DMASYNC_POSTWRITE);
2775 bus_dmamap_unload(sdev->target->sbp->dmat,
2776 ocb->dmamap);
2777 }
2778 if (!use_doorbell) {
2779 if (sbp_status->src == SRC_NO_NEXT) {
2780 if (next != NULL)
2781 sbp_orb_pointer(sdev, next);
2782 else if (order > 0) {
2783 /*
2784 * Unordered execution
2785 * We need to send pointer for
2786 * next ORB
2787 */
2788 sdev->flags |= ORB_LINK_DEAD;
2789 }
2790 }
2791 } else {
2792 /*
2793 * XXX this is not correct for unordered
2794 * execution.
2795 */
2796 if (sdev->last_ocb != NULL) {
2797 SBP_UNLOCK(sdev->target->sbp);
2798 sbp_free_ocb(sdev, sdev->last_ocb);
2799 SBP_LOCK(sdev->target->sbp);
2800 }
2801 sdev->last_ocb = ocb;
2802 if (next != NULL &&
2803 sbp_status->src == SRC_NO_NEXT)
2804 sbp_doorbell(sdev);
2805 }
2806 break;
2807 } else
2808 order ++;
2809 }
2810 SBP_UNLOCK(sdev->target->sbp);
2811 splx(s);
2812SBP_DEBUG(0)
2813 if (ocb && order > 0) {
2814 device_printf(sdev->target->sbp->fd.dev,
2815 "%s:%s unordered execution order:%d\n",
2816 __func__, sdev->bustgtlun, order);
2817 }
2818END_DEBUG
2819 return (ocb);
2820}
2821
2822static struct sbp_ocb *
2823sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2824{
2825 int s = splfw();
2826 struct sbp_ocb *prev, *prev2;
2827
2828 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2829SBP_DEBUG(1)
2830 device_printf(sdev->target->sbp->fd.dev,
2831#if defined(__DragonFly__) || __FreeBSD_version < 500000
2832 "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2833#else
2834 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2835#endif
2836END_DEBUG
2837 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2838 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2839
2840 if (ocb->ccb != NULL)
2841 ocb->timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
2842 (ocb->ccb->ccb_h.timeout * hz) / 1000);
2843
2844 if (use_doorbell && prev == NULL)
2845 prev2 = sdev->last_ocb;
2846
2847 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) {
2848SBP_DEBUG(1)
2849#if defined(__DragonFly__) || __FreeBSD_version < 500000
2850 printf("linking chain 0x%x -> 0x%x\n",
2851 prev2->bus_addr, ocb->bus_addr);
2852#else
2853 printf("linking chain 0x%jx -> 0x%jx\n",
2854 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
2855#endif
2856END_DEBUG
2857 /*
2858 * Suppress compiler optimization so that orb[1] must be written first.
2859 * XXX We may need an explicit memory barrier for other architectures
2860 * other than i386/amd64.
2861 */
2862 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr);
2863 *(volatile uint32_t *)&prev2->orb[0] = 0;
2864 }
2865 splx(s);
2866
2867 return prev;
2868}
2869
2870static struct sbp_ocb *
2871sbp_get_ocb(struct sbp_dev *sdev)
2872{
2873 struct sbp_ocb *ocb;
2874 int s = splfw();
2875
2876 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2877 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2878 if (ocb == NULL) {
2879 sdev->flags |= ORB_SHORTAGE;
2880 printf("ocb shortage!!!\n");
2881 splx(s);
2882 return NULL;
2883 }
2884 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2885 splx(s);
2886 ocb->ccb = NULL;
2887 return (ocb);
2888}
2889
2890static void
2891sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2892{
2893 ocb->flags = 0;
2894 ocb->ccb = NULL;
2895
2896 SBP_LOCK(sdev->target->sbp);
2897 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2898 if ((sdev->flags & ORB_SHORTAGE) != 0) {
2899 int count;
2900
2901 sdev->flags &= ~ORB_SHORTAGE;
2902 count = sdev->freeze;
2903 sdev->freeze = 0;
2904 xpt_release_devq(sdev->path, count, TRUE);
2905 }
2906 SBP_UNLOCK(sdev->target->sbp);
2907}
2908
2909static void
2910sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2911{
2912 struct sbp_dev *sdev;
2913
2914 sdev = ocb->sdev;
2915SBP_DEBUG(0)
2916 device_printf(sdev->target->sbp->fd.dev,
2917#if defined(__DragonFly__) || __FreeBSD_version < 500000
2918 "%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2919#else
2920 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2921#endif
2922END_DEBUG
2923SBP_DEBUG(1)
2924 if (ocb->ccb != NULL)
2925 sbp_print_scsi_cmd(ocb);
2926END_DEBUG
2927 if (ntohl(ocb->orb[4]) & 0xffff) {
2928 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2929 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2930 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2931 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2932 }
2933 if (ocb->ccb != NULL) {
2934 untimeout(sbp_timeout, (caddr_t)ocb,
2935 ocb->timeout_ch);
2936 ocb->ccb->ccb_h.status = status;
2937 SBP_LOCK(sdev->target->sbp);
2938 xpt_done(ocb->ccb);
2939 SBP_UNLOCK(sdev->target->sbp);
2940 }
2941 sbp_free_ocb(sdev, ocb);
2942}
2943
2944static void
2945sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2946{
2947 int s;
2948 struct sbp_ocb *ocb, *next;
2949 STAILQ_HEAD(, sbp_ocb) temp;
2950
2951 s = splfw();
2952
2953 STAILQ_INIT(&temp);
2954 SBP_LOCK(sdev->target->sbp);
2955 STAILQ_CONCAT(&temp, &sdev->ocbs);
2956 STAILQ_INIT(&sdev->ocbs);
2957 SBP_UNLOCK(sdev->target->sbp);
2958
2959 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2960 next = STAILQ_NEXT(ocb, ocb);
2961 sbp_abort_ocb(ocb, status);
2962 }
2963 if (sdev->last_ocb != NULL) {
2964 sbp_free_ocb(sdev, sdev->last_ocb);
2965 sdev->last_ocb = NULL;
2966 }
2967
2968 splx(s);
2969}
2970
2971static devclass_t sbp_devclass;
2972
2973static device_method_t sbp_methods[] = {
2974 /* device interface */
2975 DEVMETHOD(device_identify, sbp_identify),
2976 DEVMETHOD(device_probe, sbp_probe),
2977 DEVMETHOD(device_attach, sbp_attach),
2978 DEVMETHOD(device_detach, sbp_detach),
2979 DEVMETHOD(device_shutdown, sbp_shutdown),
2980
2981 { 0, 0 }
2982};
2983
2984static driver_t sbp_driver = {
2985 "sbp",
2986 sbp_methods,
2987 sizeof(struct sbp_softc),
2988};
2989#ifdef __DragonFly__
2990DECLARE_DUMMY_MODULE(sbp);
2991#endif
2992DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2993MODULE_VERSION(sbp, 1);
2994MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2995MODULE_DEPEND(sbp, cam, 1, 1, 1);
| 2626END_DEBUG
2627 cts->ccb_h.status = CAM_REQ_CMP;
2628 xpt_done(ccb);
2629 break;
2630 }
2631 case XPT_ABORT:
2632 ccb->ccb_h.status = CAM_UA_ABORT;
2633 xpt_done(ccb);
2634 break;
2635 case XPT_SET_TRAN_SETTINGS:
2636 /* XXX */
2637 default:
2638 ccb->ccb_h.status = CAM_REQ_INVALID;
2639 xpt_done(ccb);
2640 break;
2641 }
2642 return;
2643}
2644
2645static void
2646sbp_action(struct cam_sim *sim, union ccb *ccb)
2647{
2648 int s;
2649
2650 s = splfw();
2651 sbp_action1(sim, ccb);
2652 splx(s);
2653}
2654
2655static void
2656sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
2657{
2658 int i;
2659 struct sbp_ocb *ocb;
2660 struct sbp_ocb *prev;
2661 bus_dma_segment_t *s;
2662
2663 if (error)
2664 printf("sbp_execute_ocb: error=%d\n", error);
2665
2666 ocb = (struct sbp_ocb *)arg;
2667
2668SBP_DEBUG(2)
2669 printf("sbp_execute_ocb: seg %d", seg);
2670 for (i = 0; i < seg; i++)
2671#if defined(__DragonFly__) || __FreeBSD_version < 500000
2672 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2673#else
2674 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2675 (uintmax_t)segments[i].ds_len);
2676#endif
2677 printf("\n");
2678END_DEBUG
2679
2680 if (seg == 1) {
2681 /* direct pointer */
2682 s = &segments[0];
2683 if (s->ds_len > SBP_SEG_MAX)
2684 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2685 ocb->orb[3] = htonl(s->ds_addr);
2686 ocb->orb[4] |= htonl(s->ds_len);
2687 } else if(seg > 1) {
2688 /* page table */
2689 for (i = 0; i < seg; i++) {
2690 s = &segments[i];
2691SBP_DEBUG(0)
2692 /* XXX LSI Logic "< 16 byte" bug might be hit */
2693 if (s->ds_len < 16)
2694 printf("sbp_execute_ocb: warning, "
2695#if defined(__DragonFly__) || __FreeBSD_version < 500000
2696 "segment length(%d) is less than 16."
2697#else
2698 "segment length(%zd) is less than 16."
2699#endif
2700 "(seg=%d/%d)\n", (size_t)s->ds_len, i+1, seg);
2701END_DEBUG
2702 if (s->ds_len > SBP_SEG_MAX)
2703 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2704 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2705 ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2706 }
2707 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2708 }
2709
2710 if (seg > 0)
2711 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2712 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2713 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2714 prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2715 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2716 if (use_doorbell) {
2717 if (prev == NULL) {
2718 if (ocb->sdev->last_ocb != NULL)
2719 sbp_doorbell(ocb->sdev);
2720 else
2721 sbp_orb_pointer(ocb->sdev, ocb);
2722 }
2723 } else {
2724 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2725 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2726 sbp_orb_pointer(ocb->sdev, ocb);
2727 }
2728 }
2729}
2730
2731static void
2732sbp_poll(struct cam_sim *sim)
2733{
2734 struct sbp_softc *sbp;
2735 struct firewire_comm *fc;
2736
2737 sbp = (struct sbp_softc *)sim->softc;
2738 fc = sbp->fd.fc;
2739
2740 fc->poll(fc, 0, -1);
2741
2742 return;
2743}
2744
2745static struct sbp_ocb *
2746sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2747{
2748 struct sbp_ocb *ocb;
2749 struct sbp_ocb *next;
2750 int s = splfw(), order = 0;
2751 int flags;
2752
2753SBP_DEBUG(1)
2754 device_printf(sdev->target->sbp->fd.dev,
2755#if defined(__DragonFly__) || __FreeBSD_version < 500000
2756 "%s:%s 0x%08lx src %d\n",
2757#else
2758 "%s:%s 0x%08x src %d\n",
2759#endif
2760 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src);
2761END_DEBUG
2762 SBP_LOCK(sdev->target->sbp);
2763 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2764 next = STAILQ_NEXT(ocb, ocb);
2765 flags = ocb->flags;
2766 if (OCB_MATCH(ocb, sbp_status)) {
2767 /* found */
2768 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2769 if (ocb->ccb != NULL)
2770 untimeout(sbp_timeout, (caddr_t)ocb,
2771 ocb->timeout_ch);
2772 if (ntohl(ocb->orb[4]) & 0xffff) {
2773 bus_dmamap_sync(sdev->target->sbp->dmat,
2774 ocb->dmamap,
2775 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2776 BUS_DMASYNC_POSTREAD :
2777 BUS_DMASYNC_POSTWRITE);
2778 bus_dmamap_unload(sdev->target->sbp->dmat,
2779 ocb->dmamap);
2780 }
2781 if (!use_doorbell) {
2782 if (sbp_status->src == SRC_NO_NEXT) {
2783 if (next != NULL)
2784 sbp_orb_pointer(sdev, next);
2785 else if (order > 0) {
2786 /*
2787 * Unordered execution
2788 * We need to send pointer for
2789 * next ORB
2790 */
2791 sdev->flags |= ORB_LINK_DEAD;
2792 }
2793 }
2794 } else {
2795 /*
2796 * XXX this is not correct for unordered
2797 * execution.
2798 */
2799 if (sdev->last_ocb != NULL) {
2800 SBP_UNLOCK(sdev->target->sbp);
2801 sbp_free_ocb(sdev, sdev->last_ocb);
2802 SBP_LOCK(sdev->target->sbp);
2803 }
2804 sdev->last_ocb = ocb;
2805 if (next != NULL &&
2806 sbp_status->src == SRC_NO_NEXT)
2807 sbp_doorbell(sdev);
2808 }
2809 break;
2810 } else
2811 order ++;
2812 }
2813 SBP_UNLOCK(sdev->target->sbp);
2814 splx(s);
2815SBP_DEBUG(0)
2816 if (ocb && order > 0) {
2817 device_printf(sdev->target->sbp->fd.dev,
2818 "%s:%s unordered execution order:%d\n",
2819 __func__, sdev->bustgtlun, order);
2820 }
2821END_DEBUG
2822 return (ocb);
2823}
2824
2825static struct sbp_ocb *
2826sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2827{
2828 int s = splfw();
2829 struct sbp_ocb *prev, *prev2;
2830
2831 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2832SBP_DEBUG(1)
2833 device_printf(sdev->target->sbp->fd.dev,
2834#if defined(__DragonFly__) || __FreeBSD_version < 500000
2835 "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2836#else
2837 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2838#endif
2839END_DEBUG
2840 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2841 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2842
2843 if (ocb->ccb != NULL)
2844 ocb->timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
2845 (ocb->ccb->ccb_h.timeout * hz) / 1000);
2846
2847 if (use_doorbell && prev == NULL)
2848 prev2 = sdev->last_ocb;
2849
2850 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) {
2851SBP_DEBUG(1)
2852#if defined(__DragonFly__) || __FreeBSD_version < 500000
2853 printf("linking chain 0x%x -> 0x%x\n",
2854 prev2->bus_addr, ocb->bus_addr);
2855#else
2856 printf("linking chain 0x%jx -> 0x%jx\n",
2857 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
2858#endif
2859END_DEBUG
2860 /*
2861 * Suppress compiler optimization so that orb[1] must be written first.
2862 * XXX We may need an explicit memory barrier for other architectures
2863 * other than i386/amd64.
2864 */
2865 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr);
2866 *(volatile uint32_t *)&prev2->orb[0] = 0;
2867 }
2868 splx(s);
2869
2870 return prev;
2871}
2872
2873static struct sbp_ocb *
2874sbp_get_ocb(struct sbp_dev *sdev)
2875{
2876 struct sbp_ocb *ocb;
2877 int s = splfw();
2878
2879 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2880 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2881 if (ocb == NULL) {
2882 sdev->flags |= ORB_SHORTAGE;
2883 printf("ocb shortage!!!\n");
2884 splx(s);
2885 return NULL;
2886 }
2887 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2888 splx(s);
2889 ocb->ccb = NULL;
2890 return (ocb);
2891}
2892
2893static void
2894sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2895{
2896 ocb->flags = 0;
2897 ocb->ccb = NULL;
2898
2899 SBP_LOCK(sdev->target->sbp);
2900 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2901 if ((sdev->flags & ORB_SHORTAGE) != 0) {
2902 int count;
2903
2904 sdev->flags &= ~ORB_SHORTAGE;
2905 count = sdev->freeze;
2906 sdev->freeze = 0;
2907 xpt_release_devq(sdev->path, count, TRUE);
2908 }
2909 SBP_UNLOCK(sdev->target->sbp);
2910}
2911
2912static void
2913sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2914{
2915 struct sbp_dev *sdev;
2916
2917 sdev = ocb->sdev;
2918SBP_DEBUG(0)
2919 device_printf(sdev->target->sbp->fd.dev,
2920#if defined(__DragonFly__) || __FreeBSD_version < 500000
2921 "%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2922#else
2923 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2924#endif
2925END_DEBUG
2926SBP_DEBUG(1)
2927 if (ocb->ccb != NULL)
2928 sbp_print_scsi_cmd(ocb);
2929END_DEBUG
2930 if (ntohl(ocb->orb[4]) & 0xffff) {
2931 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2932 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2933 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2934 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2935 }
2936 if (ocb->ccb != NULL) {
2937 untimeout(sbp_timeout, (caddr_t)ocb,
2938 ocb->timeout_ch);
2939 ocb->ccb->ccb_h.status = status;
2940 SBP_LOCK(sdev->target->sbp);
2941 xpt_done(ocb->ccb);
2942 SBP_UNLOCK(sdev->target->sbp);
2943 }
2944 sbp_free_ocb(sdev, ocb);
2945}
2946
2947static void
2948sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2949{
2950 int s;
2951 struct sbp_ocb *ocb, *next;
2952 STAILQ_HEAD(, sbp_ocb) temp;
2953
2954 s = splfw();
2955
2956 STAILQ_INIT(&temp);
2957 SBP_LOCK(sdev->target->sbp);
2958 STAILQ_CONCAT(&temp, &sdev->ocbs);
2959 STAILQ_INIT(&sdev->ocbs);
2960 SBP_UNLOCK(sdev->target->sbp);
2961
2962 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2963 next = STAILQ_NEXT(ocb, ocb);
2964 sbp_abort_ocb(ocb, status);
2965 }
2966 if (sdev->last_ocb != NULL) {
2967 sbp_free_ocb(sdev, sdev->last_ocb);
2968 sdev->last_ocb = NULL;
2969 }
2970
2971 splx(s);
2972}
2973
2974static devclass_t sbp_devclass;
2975
2976static device_method_t sbp_methods[] = {
2977 /* device interface */
2978 DEVMETHOD(device_identify, sbp_identify),
2979 DEVMETHOD(device_probe, sbp_probe),
2980 DEVMETHOD(device_attach, sbp_attach),
2981 DEVMETHOD(device_detach, sbp_detach),
2982 DEVMETHOD(device_shutdown, sbp_shutdown),
2983
2984 { 0, 0 }
2985};
2986
2987static driver_t sbp_driver = {
2988 "sbp",
2989 sbp_methods,
2990 sizeof(struct sbp_softc),
2991};
2992#ifdef __DragonFly__
2993DECLARE_DUMMY_MODULE(sbp);
2994#endif
2995DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2996MODULE_VERSION(sbp, 1);
2997MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2998MODULE_DEPEND(sbp, cam, 1, 1, 1);
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