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 219543 2011-03-11 22:19:49Z marius $
| 34 * $FreeBSD: head/sys/dev/firewire/sbp.c 225950 2011-10-03 20:32:55Z ken $
|
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);
135SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
136SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
137 "SBP debug flag");
138SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
139 "SBP perform login automatically");
140SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
141 "SBP transfer max speed");
142SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
143 &ex_login, 0, "SBP enable exclusive login");
144SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
145 &login_delay, 0, "SBP login delay in msec");
146SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
147 &scan_delay, 0, "SBP scan delay in msec");
148SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW,
149 &use_doorbell, 0, "SBP use doorbell request");
150SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
151 "SBP tagged queuing support");
152
153TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
154TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
155TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
156TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
157TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
158TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell);
159TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
160
161#define NEED_RESPONSE 0
162
163#define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
164#ifdef __sparc64__ /* iommu */
165#define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX)
166#else
167#define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
168#endif
169struct sbp_ocb {
170 STAILQ_ENTRY(sbp_ocb) ocb;
171 union ccb *ccb;
172 bus_addr_t bus_addr;
173 uint32_t orb[8];
174#define IND_PTR_OFFSET (8*sizeof(uint32_t))
175 struct ind_ptr ind_ptr[SBP_IND_MAX];
176 struct sbp_dev *sdev;
177 int flags; /* XXX should be removed */
178 bus_dmamap_t dmamap;
179};
180
181#define OCB_ACT_MGM 0
182#define OCB_ACT_CMD 1
183#define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
184
185struct sbp_dev{
186#define SBP_DEV_RESET 0 /* accept login */
187#define SBP_DEV_LOGIN 1 /* to login */
188#if 0
189#define SBP_DEV_RECONN 2 /* to reconnect */
190#endif
191#define SBP_DEV_TOATTACH 3 /* to attach */
192#define SBP_DEV_PROBE 4 /* scan lun */
193#define SBP_DEV_ATTACHED 5 /* in operation */
194#define SBP_DEV_DEAD 6 /* unavailable unit */
195#define SBP_DEV_RETRY 7 /* unavailable unit */
196 uint8_t status:4,
197 timeout:4;
198 uint8_t type;
199 uint16_t lun_id;
200 uint16_t freeze;
201#define ORB_LINK_DEAD (1 << 0)
202#define VALID_LUN (1 << 1)
203#define ORB_POINTER_ACTIVE (1 << 2)
204#define ORB_POINTER_NEED (1 << 3)
205#define ORB_DOORBELL_ACTIVE (1 << 4)
206#define ORB_DOORBELL_NEED (1 << 5)
207#define ORB_SHORTAGE (1 << 6)
208 uint16_t flags;
209 struct cam_path *path;
210 struct sbp_target *target;
211 struct fwdma_alloc dma;
212 struct sbp_login_res *login;
213 struct callout login_callout;
214 struct sbp_ocb *ocb;
215 STAILQ_HEAD(, sbp_ocb) ocbs;
216 STAILQ_HEAD(, sbp_ocb) free_ocbs;
217 struct sbp_ocb *last_ocb;
218 char vendor[32];
219 char product[32];
220 char revision[10];
221 char bustgtlun[32];
222};
223
224struct sbp_target {
225 int target_id;
226 int num_lun;
227 struct sbp_dev **luns;
228 struct sbp_softc *sbp;
229 struct fw_device *fwdev;
230 uint32_t mgm_hi, mgm_lo;
231 struct sbp_ocb *mgm_ocb_cur;
232 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
233 struct callout mgm_ocb_timeout;
234 struct callout scan_callout;
235 STAILQ_HEAD(, fw_xfer) xferlist;
236 int n_xfer;
237};
238
239struct sbp_softc {
240 struct firewire_dev_comm fd;
241 struct cam_sim *sim;
242 struct cam_path *path;
243 struct sbp_target targets[SBP_NUM_TARGETS];
244 struct fw_bind fwb;
245 bus_dma_tag_t dmat;
246 struct timeval last_busreset;
247#define SIMQ_FREEZED 1
248 int flags;
249 struct mtx mtx;
250};
251#define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx)
252#define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx)
253
254static void sbp_post_explore (void *);
255static void sbp_recv (struct fw_xfer *);
256static void sbp_mgm_callback (struct fw_xfer *);
257#if 0
258static void sbp_cmd_callback (struct fw_xfer *);
259#endif
260static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
261static void sbp_doorbell(struct sbp_dev *);
262static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
263static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
264static void sbp_abort_ocb (struct sbp_ocb *, int);
265static void sbp_abort_all_ocbs (struct sbp_dev *, int);
266static struct fw_xfer * sbp_write_cmd_locked (struct sbp_dev *, int, int);
267static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
268static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
269static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
270static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
271static void sbp_cam_detach_sdev(struct sbp_dev *);
272static void sbp_free_sdev(struct sbp_dev *);
273static void sbp_cam_detach_target (struct sbp_target *);
274static void sbp_free_target (struct sbp_target *);
275static void sbp_mgm_timeout (void *arg);
276static void sbp_timeout (void *arg);
277static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
278
279MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
280
281/* cam related functions */
282static void sbp_action(struct cam_sim *sim, union ccb *ccb);
283static void sbp_poll(struct cam_sim *sim);
284static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
285static void sbp_cam_scan_target(void *arg);
286
287static char *orb_status0[] = {
288 /* 0 */ "No additional information to report",
289 /* 1 */ "Request type not supported",
290 /* 2 */ "Speed not supported",
291 /* 3 */ "Page size not supported",
292 /* 4 */ "Access denied",
293 /* 5 */ "Logical unit not supported",
294 /* 6 */ "Maximum payload too small",
295 /* 7 */ "Reserved for future standardization",
296 /* 8 */ "Resources unavailable",
297 /* 9 */ "Function rejected",
298 /* A */ "Login ID not recognized",
299 /* B */ "Dummy ORB completed",
300 /* C */ "Request aborted",
301 /* FF */ "Unspecified error"
302#define MAX_ORB_STATUS0 0xd
303};
304
305static char *orb_status1_object[] = {
306 /* 0 */ "Operation request block (ORB)",
307 /* 1 */ "Data buffer",
308 /* 2 */ "Page table",
309 /* 3 */ "Unable to specify"
310};
311
312static char *orb_status1_serial_bus_error[] = {
313 /* 0 */ "Missing acknowledge",
314 /* 1 */ "Reserved; not to be used",
315 /* 2 */ "Time-out error",
316 /* 3 */ "Reserved; not to be used",
317 /* 4 */ "Busy retry limit exceeded(X)",
318 /* 5 */ "Busy retry limit exceeded(A)",
319 /* 6 */ "Busy retry limit exceeded(B)",
320 /* 7 */ "Reserved for future standardization",
321 /* 8 */ "Reserved for future standardization",
322 /* 9 */ "Reserved for future standardization",
323 /* A */ "Reserved for future standardization",
324 /* B */ "Tardy retry limit exceeded",
325 /* C */ "Conflict error",
326 /* D */ "Data error",
327 /* E */ "Type error",
328 /* F */ "Address error"
329};
330
331static void
332sbp_identify(driver_t *driver, device_t parent)
333{
334SBP_DEBUG(0)
335 printf("sbp_identify\n");
336END_DEBUG
337
338 BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent));
339}
340
341/*
342 * sbp_probe()
343 */
344static int
345sbp_probe(device_t dev)
346{
347 device_t pa;
348
349SBP_DEBUG(0)
350 printf("sbp_probe\n");
351END_DEBUG
352
353 pa = device_get_parent(dev);
354 if(device_get_unit(dev) != device_get_unit(pa)){
355 return(ENXIO);
356 }
357
358 device_set_desc(dev, "SBP-2/SCSI over FireWire");
359
360#if 0
361 if (bootverbose)
362 debug = bootverbose;
363#endif
364
365 return (0);
366}
367
368/*
369 * Display device characteristics on the console
370 */
371static void
372sbp_show_sdev_info(struct sbp_dev *sdev)
373{
374 struct fw_device *fwdev;
375
376 fwdev = sdev->target->fwdev;
377 device_printf(sdev->target->sbp->fd.dev,
378 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d "
379 "speed:%d maxrec:%d\n",
380 __func__,
381 sdev->bustgtlun,
382 (sdev->type & 0x40) >> 6,
383 (sdev->type & 0x1f),
384 fwdev->eui.hi,
385 fwdev->eui.lo,
386 fwdev->dst,
387 fwdev->speed,
388 fwdev->maxrec);
389
390 device_printf(sdev->target->sbp->fd.dev,
391 "%s: %s '%s' '%s' '%s'\n",
392 __func__,
393 sdev->bustgtlun,
394 sdev->vendor,
395 sdev->product,
396 sdev->revision);
397}
398
399static struct {
400 int bus;
401 int target;
402 struct fw_eui64 eui;
403} wired[] = {
404 /* Bus Target EUI64 */
405#if 0
406 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
407 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
408 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
409#endif
410 {-1, -1, {0,0}}
411};
412
413static int
414sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
415{
416 int bus, i, target=-1;
417 char w[SBP_NUM_TARGETS];
418
419 bzero(w, sizeof(w));
420 bus = device_get_unit(sbp->fd.dev);
421
422 /* XXX wired-down configuration should be gotten from
423 tunable or device hint */
424 for (i = 0; wired[i].bus >= 0; i ++) {
425 if (wired[i].bus == bus) {
426 w[wired[i].target] = 1;
427 if (wired[i].eui.hi == fwdev->eui.hi &&
428 wired[i].eui.lo == fwdev->eui.lo)
429 target = wired[i].target;
430 }
431 }
432 if (target >= 0) {
433 if(target < SBP_NUM_TARGETS &&
434 sbp->targets[target].fwdev == NULL)
435 return(target);
436 device_printf(sbp->fd.dev,
437 "target %d is not free for %08x:%08x\n",
438 target, fwdev->eui.hi, fwdev->eui.lo);
439 target = -1;
440 }
441 /* non-wired target */
442 for (i = 0; i < SBP_NUM_TARGETS; i ++)
443 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
444 target = i;
445 break;
446 }
447
448 return target;
449}
450
451static void
452sbp_alloc_lun(struct sbp_target *target)
453{
454 struct crom_context cc;
455 struct csrreg *reg;
456 struct sbp_dev *sdev, **newluns;
457 struct sbp_softc *sbp;
458 int maxlun, lun, i;
459
460 sbp = target->sbp;
461 crom_init_context(&cc, target->fwdev->csrrom);
462 /* XXX shoud parse appropriate unit directories only */
463 maxlun = -1;
464 while (cc.depth >= 0) {
465 reg = crom_search_key(&cc, CROM_LUN);
466 if (reg == NULL)
467 break;
468 lun = reg->val & 0xffff;
469SBP_DEBUG(0)
470 printf("target %d lun %d found\n", target->target_id, lun);
471END_DEBUG
472 if (maxlun < lun)
473 maxlun = lun;
474 crom_next(&cc);
475 }
476 if (maxlun < 0)
477 printf("%s:%d no LUN found\n",
478 device_get_nameunit(target->sbp->fd.dev),
479 target->target_id);
480
481 maxlun ++;
482 if (maxlun >= SBP_NUM_LUNS)
483 maxlun = SBP_NUM_LUNS;
484
485 /* Invalidiate stale devices */
486 for (lun = 0; lun < target->num_lun; lun ++) {
487 sdev = target->luns[lun];
488 if (sdev == NULL)
489 continue;
490 sdev->flags &= ~VALID_LUN;
491 if (lun >= maxlun) {
492 /* lost device */
493 sbp_cam_detach_sdev(sdev);
494 sbp_free_sdev(sdev);
495 target->luns[lun] = NULL;
496 }
497 }
498
499 /* Reallocate */
500 if (maxlun != target->num_lun) {
501 newluns = (struct sbp_dev **) realloc(target->luns,
502 sizeof(struct sbp_dev *) * maxlun,
503 M_SBP, M_NOWAIT | M_ZERO);
504
505 if (newluns == NULL) {
506 printf("%s: realloc failed\n", __func__);
507 newluns = target->luns;
508 maxlun = target->num_lun;
509 }
510
511 /*
512 * We must zero the extended region for the case
513 * realloc() doesn't allocate new buffer.
514 */
515 if (maxlun > target->num_lun)
516 bzero(&newluns[target->num_lun],
517 sizeof(struct sbp_dev *) *
518 (maxlun - target->num_lun));
519
520 target->luns = newluns;
521 target->num_lun = maxlun;
522 }
523
524 crom_init_context(&cc, target->fwdev->csrrom);
525 while (cc.depth >= 0) {
526 int new = 0;
527
528 reg = crom_search_key(&cc, CROM_LUN);
529 if (reg == NULL)
530 break;
531 lun = reg->val & 0xffff;
532 if (lun >= SBP_NUM_LUNS) {
533 printf("too large lun %d\n", lun);
534 goto next;
535 }
536
537 sdev = target->luns[lun];
538 if (sdev == NULL) {
539 sdev = malloc(sizeof(struct sbp_dev),
540 M_SBP, M_NOWAIT | M_ZERO);
541 if (sdev == NULL) {
542 printf("%s: malloc failed\n", __func__);
543 goto next;
544 }
545 target->luns[lun] = sdev;
546 sdev->lun_id = lun;
547 sdev->target = target;
548 STAILQ_INIT(&sdev->ocbs);
549 CALLOUT_INIT(&sdev->login_callout);
550 sdev->status = SBP_DEV_RESET;
551 new = 1;
552 snprintf(sdev->bustgtlun, 32, "%s:%d:%d",
553 device_get_nameunit(sdev->target->sbp->fd.dev),
554 sdev->target->target_id,
555 sdev->lun_id);
556 }
557 sdev->flags |= VALID_LUN;
558 sdev->type = (reg->val & 0xff0000) >> 16;
559
560 if (new == 0)
561 goto next;
562
563 fwdma_malloc(sbp->fd.fc,
564 /* alignment */ sizeof(uint32_t),
565 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT |
566 BUS_DMA_COHERENT);
567 if (sdev->dma.v_addr == NULL) {
568 printf("%s: dma space allocation failed\n",
569 __func__);
570 free(sdev, M_SBP);
571 target->luns[lun] = NULL;
572 goto next;
573 }
574 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
575 sdev->ocb = (struct sbp_ocb *)
576 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
577 bzero((char *)sdev->ocb,
578 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
579
580 STAILQ_INIT(&sdev->free_ocbs);
581 for (i = 0; i < SBP_QUEUE_LEN; i++) {
582 struct sbp_ocb *ocb;
583 ocb = &sdev->ocb[i];
584 ocb->bus_addr = sdev->dma.bus_addr
585 + SBP_LOGIN_SIZE
586 + sizeof(struct sbp_ocb) * i
587 + offsetof(struct sbp_ocb, orb[0]);
588 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
589 printf("sbp_attach: cannot create dmamap\n");
590 /* XXX */
591 goto next;
592 }
593 sbp_free_ocb(sdev, ocb);
594 }
595next:
596 crom_next(&cc);
597 }
598
599 for (lun = 0; lun < target->num_lun; lun ++) {
600 sdev = target->luns[lun];
601 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
602 sbp_cam_detach_sdev(sdev);
603 sbp_free_sdev(sdev);
604 target->luns[lun] = NULL;
605 }
606 }
607}
608
609static struct sbp_target *
610sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
611{
612 int i;
613 struct sbp_target *target;
614 struct crom_context cc;
615 struct csrreg *reg;
616
617SBP_DEBUG(1)
618 printf("sbp_alloc_target\n");
619END_DEBUG
620 i = sbp_new_target(sbp, fwdev);
621 if (i < 0) {
622 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
623 return NULL;
624 }
625 /* new target */
626 target = &sbp->targets[i];
627 target->sbp = sbp;
628 target->fwdev = fwdev;
629 target->target_id = i;
630 /* XXX we may want to reload mgm port after each bus reset */
631 /* XXX there might be multiple management agents */
632 crom_init_context(&cc, target->fwdev->csrrom);
633 reg = crom_search_key(&cc, CROM_MGM);
634 if (reg == NULL || reg->val == 0) {
635 printf("NULL management address\n");
636 target->fwdev = NULL;
637 return NULL;
638 }
639 target->mgm_hi = 0xffff;
640 target->mgm_lo = 0xf0000000 | (reg->val << 2);
641 target->mgm_ocb_cur = NULL;
642SBP_DEBUG(1)
643 printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
644END_DEBUG
645 STAILQ_INIT(&target->xferlist);
646 target->n_xfer = 0;
647 STAILQ_INIT(&target->mgm_ocb_queue);
648 CALLOUT_INIT(&target->mgm_ocb_timeout);
649 CALLOUT_INIT(&target->scan_callout);
650
651 target->luns = NULL;
652 target->num_lun = 0;
653 return target;
654}
655
656static void
657sbp_probe_lun(struct sbp_dev *sdev)
658{
659 struct fw_device *fwdev;
660 struct crom_context c, *cc = &c;
661 struct csrreg *reg;
662
663 bzero(sdev->vendor, sizeof(sdev->vendor));
664 bzero(sdev->product, sizeof(sdev->product));
665
666 fwdev = sdev->target->fwdev;
667 crom_init_context(cc, fwdev->csrrom);
668 /* get vendor string */
669 crom_search_key(cc, CSRKEY_VENDOR);
670 crom_next(cc);
671 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
672 /* skip to the unit directory for SBP-2 */
673 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
674 if (reg->val == CSRVAL_T10SBP2)
675 break;
676 crom_next(cc);
677 }
678 /* get firmware revision */
679 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
680 if (reg != NULL)
681 snprintf(sdev->revision, sizeof(sdev->revision),
682 "%06x", reg->val);
683 /* get product string */
684 crom_search_key(cc, CSRKEY_MODEL);
685 crom_next(cc);
686 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
687}
688
689static void
690sbp_login_callout(void *arg)
691{
692 struct sbp_dev *sdev = (struct sbp_dev *)arg;
693 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
694}
695
696static void
697sbp_login(struct sbp_dev *sdev)
698{
699 struct timeval delta;
700 struct timeval t;
701 int ticks = 0;
702
703 microtime(&delta);
704 timevalsub(&delta, &sdev->target->sbp->last_busreset);
705 t.tv_sec = login_delay / 1000;
706 t.tv_usec = (login_delay % 1000) * 1000;
707 timevalsub(&t, &delta);
708 if (t.tv_sec >= 0 && t.tv_usec > 0)
709 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
710SBP_DEBUG(0)
711 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__,
712 (intmax_t)t.tv_sec, t.tv_usec, ticks);
713END_DEBUG
714 callout_reset(&sdev->login_callout, ticks,
715 sbp_login_callout, (void *)(sdev));
716}
717
718#define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
719 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
720
721static void
722sbp_probe_target(void *arg)
723{
724 struct sbp_target *target = (struct sbp_target *)arg;
725 struct sbp_softc *sbp = target->sbp;
726 struct sbp_dev *sdev;
727 int i, alive;
728
729 alive = SBP_FWDEV_ALIVE(target->fwdev);
730SBP_DEBUG(1)
731 device_printf(sbp->fd.dev, "%s %d%salive\n",
732 __func__, target->target_id,
733 (!alive) ? " not " : "");
734END_DEBUG
735
736 sbp = target->sbp;
737 sbp_alloc_lun(target);
738
739 /* XXX untimeout mgm_ocb and dequeue */
740 for (i=0; i < target->num_lun; i++) {
741 sdev = target->luns[i];
742 if (sdev == NULL)
743 continue;
744 if (alive && (sdev->status != SBP_DEV_DEAD)) {
745 if (sdev->path != NULL) {
746 SBP_LOCK(sbp);
747 xpt_freeze_devq(sdev->path, 1);
748 sdev->freeze ++;
749 SBP_UNLOCK(sbp);
750 }
751 sbp_probe_lun(sdev);
752 sbp_show_sdev_info(sdev);
753
754 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
755 switch (sdev->status) {
756 case SBP_DEV_RESET:
757 /* new or revived target */
758 if (auto_login)
759 sbp_login(sdev);
760 break;
761 case SBP_DEV_TOATTACH:
762 case SBP_DEV_PROBE:
763 case SBP_DEV_ATTACHED:
764 case SBP_DEV_RETRY:
765 default:
766 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
767 break;
768 }
769 } else {
770 switch (sdev->status) {
771 case SBP_DEV_ATTACHED:
772SBP_DEBUG(0)
773 /* the device has gone */
774 device_printf(sbp->fd.dev, "%s: lost target\n",
775 __func__);
776END_DEBUG
777 if (sdev->path) {
778 SBP_LOCK(sbp);
779 xpt_freeze_devq(sdev->path, 1);
780 sdev->freeze ++;
781 SBP_UNLOCK(sbp);
782 }
783 sdev->status = SBP_DEV_RETRY;
784 sbp_cam_detach_sdev(sdev);
785 sbp_free_sdev(sdev);
786 target->luns[i] = NULL;
787 break;
788 case SBP_DEV_PROBE:
789 case SBP_DEV_TOATTACH:
790 sdev->status = SBP_DEV_RESET;
791 break;
792 case SBP_DEV_RETRY:
793 case SBP_DEV_RESET:
794 case SBP_DEV_DEAD:
795 break;
796 }
797 }
798 }
799}
800
801static void
802sbp_post_busreset(void *arg)
803{
804 struct sbp_softc *sbp;
805
806 sbp = (struct sbp_softc *)arg;
807SBP_DEBUG(0)
808 printf("sbp_post_busreset\n");
809END_DEBUG
810 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
811 SBP_LOCK(sbp);
812 xpt_freeze_simq(sbp->sim, /*count*/1);
813 sbp->sim->flags |= SIMQ_FREEZED;
814 SBP_UNLOCK(sbp);
815 }
816 microtime(&sbp->last_busreset);
817}
818
819static void
820sbp_post_explore(void *arg)
821{
822 struct sbp_softc *sbp = (struct sbp_softc *)arg;
823 struct sbp_target *target;
824 struct fw_device *fwdev;
825 int i, alive;
826
827SBP_DEBUG(0)
828 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
829END_DEBUG
830 /* We need physical access */
831 if (!firewire_phydma_enable)
832 return;
833
834 if (sbp_cold > 0)
835 sbp_cold --;
836
837#if 0
838 /*
839 * XXX don't let CAM the bus rest.
840 * CAM tries to do something with freezed (DEV_RETRY) devices.
841 */
842 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
843#endif
844
845 /* Garbage Collection */
846 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
847 target = &sbp->targets[i];
848 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
849 if (target->fwdev == NULL || target->fwdev == fwdev)
850 break;
851 if (fwdev == NULL) {
852 /* device has removed in lower driver */
853 sbp_cam_detach_target(target);
854 sbp_free_target(target);
855 }
856 }
857 /* traverse device list */
858 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
859SBP_DEBUG(0)
860 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n",
861 __func__, fwdev->eui.hi, fwdev->eui.lo,
862 (fwdev->status != FWDEVATTACHED) ? "not" : "",
863 fwdev->status);
864END_DEBUG
865 alive = SBP_FWDEV_ALIVE(fwdev);
866 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
867 target = &sbp->targets[i];
868 if(target->fwdev == fwdev ) {
869 /* known target */
870 break;
871 }
872 }
873 if(i == SBP_NUM_TARGETS){
874 if (alive) {
875 /* new target */
876 target = sbp_alloc_target(sbp, fwdev);
877 if (target == NULL)
878 continue;
879 } else {
880 continue;
881 }
882 }
883 sbp_probe_target((void *)target);
884 if (target->num_lun == 0)
885 sbp_free_target(target);
886 }
887 SBP_LOCK(sbp);
888 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
889 sbp->sim->flags &= ~SIMQ_FREEZED;
890 SBP_UNLOCK(sbp);
891}
892
893#if NEED_RESPONSE
894static void
895sbp_loginres_callback(struct fw_xfer *xfer){
896 int s;
897 struct sbp_dev *sdev;
898 sdev = (struct sbp_dev *)xfer->sc;
899SBP_DEBUG(1)
900 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__);
901END_DEBUG
902 /* recycle */
903 s = splfw();
904 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
905 splx(s);
906 return;
907}
908#endif
909
910static __inline void
911sbp_xfer_free(struct fw_xfer *xfer)
912{
913 struct sbp_dev *sdev;
914 int s;
915
916 sdev = (struct sbp_dev *)xfer->sc;
917 fw_xfer_unload(xfer);
918 s = splfw();
919 SBP_LOCK(sdev->target->sbp);
920 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
921 SBP_UNLOCK(sdev->target->sbp);
922 splx(s);
923}
924
925static void
926sbp_reset_start_callback(struct fw_xfer *xfer)
927{
928 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
929 struct sbp_target *target = sdev->target;
930 int i;
931
932 if (xfer->resp != 0) {
933 device_printf(sdev->target->sbp->fd.dev,
934 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
935 }
936
937 for (i = 0; i < target->num_lun; i++) {
938 tsdev = target->luns[i];
939 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
940 sbp_login(tsdev);
941 }
942}
943
944static void
945sbp_reset_start(struct sbp_dev *sdev)
946{
947 struct fw_xfer *xfer;
948 struct fw_pkt *fp;
949
950SBP_DEBUG(0)
951 device_printf(sdev->target->sbp->fd.dev,
952 "%s:%s\n", __func__,sdev->bustgtlun);
953END_DEBUG
954
955 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
956 xfer->hand = sbp_reset_start_callback;
957 fp = &xfer->send.hdr;
958 fp->mode.wreqq.dest_hi = 0xffff;
959 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
960 fp->mode.wreqq.data = htonl(0xf);
961 fw_asyreq(xfer->fc, -1, xfer);
962}
963
964static void
965sbp_mgm_callback(struct fw_xfer *xfer)
966{
967 struct sbp_dev *sdev;
968 int resp;
969
970 sdev = (struct sbp_dev *)xfer->sc;
971
972SBP_DEBUG(1)
973 device_printf(sdev->target->sbp->fd.dev,
974 "%s:%s\n", __func__, sdev->bustgtlun);
975END_DEBUG
976 resp = xfer->resp;
977 sbp_xfer_free(xfer);
978 return;
979}
980
981static struct sbp_dev *
982sbp_next_dev(struct sbp_target *target, int lun)
983{
984 struct sbp_dev **sdevp;
985 int i;
986
987 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
988 i++, sdevp++)
989 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
990 return(*sdevp);
991 return(NULL);
992}
993
994#define SCAN_PRI 1
995static void
996sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
997{
998 struct sbp_target *target;
999 struct sbp_dev *sdev;
1000
1001 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
1002 target = sdev->target;
1003SBP_DEBUG(0)
1004 device_printf(sdev->target->sbp->fd.dev,
1005 "%s:%s\n", __func__, sdev->bustgtlun);
1006END_DEBUG
1007 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1008 sdev->status = SBP_DEV_ATTACHED;
1009 } else {
1010 device_printf(sdev->target->sbp->fd.dev,
1011 "%s:%s failed\n", __func__, sdev->bustgtlun);
1012 }
1013 sdev = sbp_next_dev(target, sdev->lun_id + 1);
1014 if (sdev == NULL) {
1015 free(ccb, M_SBP);
1016 return;
1017 }
1018 /* reuse ccb */
1019 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1020 ccb->ccb_h.ccb_sdev_ptr = sdev;
1021 xpt_action(ccb);
1022 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1023 sdev->freeze = 1;
1024}
1025
1026static void
1027sbp_cam_scan_target(void *arg)
1028{
1029 struct sbp_target *target = (struct sbp_target *)arg;
1030 struct sbp_dev *sdev;
1031 union ccb *ccb;
1032
1033 sdev = sbp_next_dev(target, 0);
1034 if (sdev == NULL) {
1035 printf("sbp_cam_scan_target: nothing to do for target%d\n",
1036 target->target_id);
1037 return;
1038 }
1039SBP_DEBUG(0)
1040 device_printf(sdev->target->sbp->fd.dev,
1041 "%s:%s\n", __func__, sdev->bustgtlun);
1042END_DEBUG
1043 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
1044 if (ccb == NULL) {
1045 printf("sbp_cam_scan_target: malloc failed\n");
1046 return;
1047 }
1048 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1049 ccb->ccb_h.func_code = XPT_SCAN_LUN;
1050 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1051 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1052 ccb->crcn.flags = CAM_FLAG_NONE;
1053 ccb->ccb_h.ccb_sdev_ptr = sdev;
1054
1055 /* The scan is in progress now. */
1056 SBP_LOCK(target->sbp);
1057 xpt_action(ccb);
1058 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1059 sdev->freeze = 1;
1060 SBP_UNLOCK(target->sbp);
1061}
1062
1063static __inline void
1064sbp_scan_dev(struct sbp_dev *sdev)
1065{
1066 sdev->status = SBP_DEV_PROBE;
1067 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1068 sbp_cam_scan_target, (void *)sdev->target);
1069}
1070
1071static void
1072sbp_do_attach(struct fw_xfer *xfer)
1073{
1074 struct sbp_dev *sdev;
1075 struct sbp_target *target;
1076 struct sbp_softc *sbp;
1077
1078 sdev = (struct sbp_dev *)xfer->sc;
1079 target = sdev->target;
1080 sbp = target->sbp;
1081SBP_DEBUG(0)
1082 device_printf(sdev->target->sbp->fd.dev,
1083 "%s:%s\n", __func__, sdev->bustgtlun);
1084END_DEBUG
1085 sbp_xfer_free(xfer);
1086
1087 if (sdev->path == NULL)
1088 xpt_create_path(&sdev->path, xpt_periph,
1089 cam_sim_path(target->sbp->sim),
1090 target->target_id, sdev->lun_id);
1091
1092 /*
1093 * Let CAM scan the bus if we are in the boot process.
1094 * XXX xpt_scan_bus cannot detect LUN larger than 0
1095 * if LUN 0 doesn't exists.
1096 */
1097 if (sbp_cold > 0) {
1098 sdev->status = SBP_DEV_ATTACHED;
1099 return;
1100 }
1101
1102 sbp_scan_dev(sdev);
1103 return;
1104}
1105
1106static void
1107sbp_agent_reset_callback(struct fw_xfer *xfer)
1108{
1109 struct sbp_dev *sdev;
1110
1111 sdev = (struct sbp_dev *)xfer->sc;
1112SBP_DEBUG(1)
1113 device_printf(sdev->target->sbp->fd.dev,
1114 "%s:%s\n", __func__, sdev->bustgtlun);
1115END_DEBUG
1116 if (xfer->resp != 0) {
1117 device_printf(sdev->target->sbp->fd.dev,
1118 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
1119 }
1120
1121 sbp_xfer_free(xfer);
1122 if (sdev->path) {
1123 SBP_LOCK(sdev->target->sbp);
1124 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1125 sdev->freeze = 0;
1126 SBP_UNLOCK(sdev->target->sbp);
1127 }
1128}
1129
1130static void
1131sbp_agent_reset(struct sbp_dev *sdev)
1132{
1133 struct fw_xfer *xfer;
1134 struct fw_pkt *fp;
1135
1136SBP_DEBUG(0)
1137 device_printf(sdev->target->sbp->fd.dev,
1138 "%s:%s\n", __func__, sdev->bustgtlun);
1139END_DEBUG
1140 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1141 if (xfer == NULL)
1142 return;
1143 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1144 xfer->hand = sbp_agent_reset_callback;
1145 else
1146 xfer->hand = sbp_do_attach;
1147 fp = &xfer->send.hdr;
1148 fp->mode.wreqq.data = htonl(0xf);
1149 fw_asyreq(xfer->fc, -1, xfer);
1150 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1151}
1152
1153static void
1154sbp_busy_timeout_callback(struct fw_xfer *xfer)
1155{
1156 struct sbp_dev *sdev;
1157
1158 sdev = (struct sbp_dev *)xfer->sc;
1159SBP_DEBUG(1)
1160 device_printf(sdev->target->sbp->fd.dev,
1161 "%s:%s\n", __func__, sdev->bustgtlun);
1162END_DEBUG
1163 sbp_xfer_free(xfer);
1164 sbp_agent_reset(sdev);
1165}
1166
1167static void
1168sbp_busy_timeout(struct sbp_dev *sdev)
1169{
1170 struct fw_pkt *fp;
1171 struct fw_xfer *xfer;
1172SBP_DEBUG(0)
1173 device_printf(sdev->target->sbp->fd.dev,
1174 "%s:%s\n", __func__, sdev->bustgtlun);
1175END_DEBUG
1176 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1177
1178 xfer->hand = sbp_busy_timeout_callback;
1179 fp = &xfer->send.hdr;
1180 fp->mode.wreqq.dest_hi = 0xffff;
1181 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1182 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1183 fw_asyreq(xfer->fc, -1, xfer);
1184}
1185
1186static void
1187sbp_orb_pointer_callback(struct fw_xfer *xfer)
1188{
1189 struct sbp_dev *sdev;
1190 sdev = (struct sbp_dev *)xfer->sc;
1191
1192SBP_DEBUG(2)
1193 device_printf(sdev->target->sbp->fd.dev,
1194 "%s:%s\n", __func__, sdev->bustgtlun);
1195END_DEBUG
1196 if (xfer->resp != 0) {
1197 /* XXX */
1198 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1199 }
1200 sbp_xfer_free(xfer);
1201
1202 SBP_LOCK(sdev->target->sbp);
1203 sdev->flags &= ~ORB_POINTER_ACTIVE;
1204
1205 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1206 struct sbp_ocb *ocb;
1207
1208 sdev->flags &= ~ORB_POINTER_NEED;
1209 ocb = STAILQ_FIRST(&sdev->ocbs);
1210 if (ocb != NULL)
1211 sbp_orb_pointer(sdev, ocb);
1212 }
1213 SBP_UNLOCK(sdev->target->sbp);
1214 return;
1215}
1216
1217static void
1218sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1219{
1220 struct fw_xfer *xfer;
1221 struct fw_pkt *fp;
1222SBP_DEBUG(1)
1223 device_printf(sdev->target->sbp->fd.dev,
1224 "%s:%s 0x%08x\n",
1225 __func__, sdev->bustgtlun,
1226 (uint32_t)ocb->bus_addr);
1227END_DEBUG
1228
1229 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1230
1231 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1232SBP_DEBUG(0)
1233 printf("%s: orb pointer active\n", __func__);
1234END_DEBUG
1235 sdev->flags |= ORB_POINTER_NEED;
1236 return;
1237 }
1238
1239 sdev->flags |= ORB_POINTER_ACTIVE;
1240 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQB, 0x08);
1241 if (xfer == NULL)
1242 return;
1243 xfer->hand = sbp_orb_pointer_callback;
1244
1245 fp = &xfer->send.hdr;
1246 fp->mode.wreqb.len = 8;
1247 fp->mode.wreqb.extcode = 0;
1248 xfer->send.payload[0] =
1249 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1250 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
1251
1252 /*
1253 * sbp_xfer_free() will attempt to acquire
1254 * the SBP lock on entrance. Also, this removes
1255 * a LOR between the firewire layer and sbp
1256 */
1257 SBP_UNLOCK(sdev->target->sbp);
1258 if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1259 sbp_xfer_free(xfer);
1260 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1261 xpt_done(ocb->ccb);
1262 }
1263 SBP_LOCK(sdev->target->sbp);
1264}
1265
1266static void
1267sbp_doorbell_callback(struct fw_xfer *xfer)
1268{
1269 struct sbp_dev *sdev;
1270 sdev = (struct sbp_dev *)xfer->sc;
1271
1272SBP_DEBUG(1)
1273 device_printf(sdev->target->sbp->fd.dev,
1274 "%s:%s\n", __func__, sdev->bustgtlun);
1275END_DEBUG
1276 if (xfer->resp != 0) {
1277 /* XXX */
1278 device_printf(sdev->target->sbp->fd.dev,
1279 "%s: xfer->resp = %d\n", __func__, xfer->resp);
1280 }
1281 sbp_xfer_free(xfer);
1282 sdev->flags &= ~ORB_DOORBELL_ACTIVE;
1283 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
1284 sdev->flags &= ~ORB_DOORBELL_NEED;
1285 SBP_LOCK(sdev->target->sbp);
1286 sbp_doorbell(sdev);
1287 SBP_UNLOCK(sdev->target->sbp);
1288 }
1289 return;
1290}
1291
1292static void
1293sbp_doorbell(struct sbp_dev *sdev)
1294{
1295 struct fw_xfer *xfer;
1296 struct fw_pkt *fp;
1297SBP_DEBUG(1)
1298 device_printf(sdev->target->sbp->fd.dev,
1299 "%s:%s\n", __func__, sdev->bustgtlun);
1300END_DEBUG
1301
1302 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
1303 sdev->flags |= ORB_DOORBELL_NEED;
1304 return;
1305 }
1306 sdev->flags |= ORB_DOORBELL_ACTIVE;
1307 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQQ, 0x10);
1308 if (xfer == NULL)
1309 return;
1310 xfer->hand = sbp_doorbell_callback;
1311 fp = &xfer->send.hdr;
1312 fp->mode.wreqq.data = htonl(0xf);
1313 fw_asyreq(xfer->fc, -1, xfer);
1314}
1315
1316static struct fw_xfer *
1317sbp_write_cmd_locked(struct sbp_dev *sdev, int tcode, int offset)
1318{
1319 struct fw_xfer *xfer;
1320 struct fw_pkt *fp;
1321 struct sbp_target *target;
1322 int s, new = 0;
1323
1324 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1325
1326 target = sdev->target;
1327 s = splfw();
1328 xfer = STAILQ_FIRST(&target->xferlist);
1329 if (xfer == NULL) {
1330 if (target->n_xfer > 5 /* XXX */) {
1331 printf("sbp: no more xfer for this target\n");
1332 splx(s);
1333 return(NULL);
1334 }
1335 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1336 if(xfer == NULL){
1337 printf("sbp: fw_xfer_alloc_buf failed\n");
1338 splx(s);
1339 return NULL;
1340 }
1341 target->n_xfer ++;
1342 if (debug)
1343 printf("sbp: alloc %d xfer\n", target->n_xfer);
1344 new = 1;
1345 } else {
1346 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1347 }
1348 splx(s);
1349
1350 if (new) {
1351 xfer->recv.pay_len = 0;
1352 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1353 xfer->fc = sdev->target->sbp->fd.fc;
1354 }
1355
1356 if (tcode == FWTCODE_WREQB)
1357 xfer->send.pay_len = 8;
1358 else
1359 xfer->send.pay_len = 0;
1360
1361 xfer->sc = (caddr_t)sdev;
1362 fp = &xfer->send.hdr;
1363 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1364 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1365 fp->mode.wreqq.tlrt = 0;
1366 fp->mode.wreqq.tcode = tcode;
1367 fp->mode.wreqq.pri = 0;
1368 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1369
1370 return xfer;
1371
1372}
1373
1374static struct fw_xfer *
1375sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1376{
1377 struct sbp_softc *sbp = sdev->target->sbp;
1378 struct fw_xfer *xfer;
1379
1380 SBP_LOCK(sbp);
1381 xfer = sbp_write_cmd_locked(sdev, tcode, offset);
1382 SBP_UNLOCK(sbp);
1383
1384 return (xfer);
1385}
1386
1387static void
1388sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1389{
1390 struct fw_xfer *xfer;
1391 struct fw_pkt *fp;
1392 struct sbp_ocb *ocb;
1393 struct sbp_target *target;
1394 int s, nid;
1395
1396 target = sdev->target;
1397 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1398
1399 s = splfw();
1400 SBP_LOCK(target->sbp);
1401 if (func == ORB_FUN_RUNQUEUE) {
1402 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1403 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1404 SBP_UNLOCK(target->sbp);
1405 splx(s);
1406 return;
1407 }
1408 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1409 SBP_UNLOCK(target->sbp);
1410 goto start;
1411 }
1412 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1413 SBP_UNLOCK(target->sbp);
1414 splx(s);
1415 /* XXX */
1416 return;
1417 }
1418 SBP_UNLOCK(target->sbp);
1419 ocb->flags = OCB_ACT_MGM;
1420 ocb->sdev = sdev;
1421
1422 bzero((void *)ocb->orb, sizeof(ocb->orb));
1423 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1424 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1425
1426SBP_DEBUG(0)
1427 device_printf(sdev->target->sbp->fd.dev,
1428 "%s:%s %s\n",
1429 __func__,sdev->bustgtlun,
1430 orb_fun_name[(func>>16)&0xf]);
1431END_DEBUG
1432 switch (func) {
1433 case ORB_FUN_LGI:
1434 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1435 ocb->orb[2] = htonl(nid << 16);
1436 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1437 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1438 if (ex_login)
1439 ocb->orb[4] |= htonl(ORB_EXV);
1440 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1441 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1442 break;
1443 case ORB_FUN_ATA:
1444 ocb->orb[0] = htonl((0 << 16) | 0);
1445 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1446 /* fall through */
1447 case ORB_FUN_RCN:
1448 case ORB_FUN_LGO:
1449 case ORB_FUN_LUR:
1450 case ORB_FUN_RST:
1451 case ORB_FUN_ATS:
1452 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1453 break;
1454 }
1455
1456 if (target->mgm_ocb_cur != NULL) {
1457 /* there is a standing ORB */
1458 SBP_LOCK(target->sbp);
1459 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1460 SBP_UNLOCK(target->sbp);
1461 splx(s);
1462 return;
1463 }
1464start:
1465 target->mgm_ocb_cur = ocb;
1466 splx(s);
1467
1468 callout_reset(&target->mgm_ocb_timeout, 5*hz,
1469 sbp_mgm_timeout, (caddr_t)ocb);
1470 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1471 if(xfer == NULL){
1472 return;
1473 }
1474 xfer->hand = sbp_mgm_callback;
1475
1476 fp = &xfer->send.hdr;
1477 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1478 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1479 fp->mode.wreqb.len = 8;
1480 fp->mode.wreqb.extcode = 0;
1481 xfer->send.payload[0] = htonl(nid << 16);
1482 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1483
1484 fw_asyreq(xfer->fc, -1, xfer);
1485}
1486
1487static void
1488sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1489{
1490 struct ccb_scsiio *csio;
1491
1492 csio = &ocb->ccb->csio;
1493 printf("%s:%d:%d XPT_SCSI_IO: "
1494 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1495 ", flags: 0x%02x, "
1496 "%db cmd/%db data/%db sense\n",
1497 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1498 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1499 csio->cdb_io.cdb_bytes[0],
1500 csio->cdb_io.cdb_bytes[1],
1501 csio->cdb_io.cdb_bytes[2],
1502 csio->cdb_io.cdb_bytes[3],
1503 csio->cdb_io.cdb_bytes[4],
1504 csio->cdb_io.cdb_bytes[5],
1505 csio->cdb_io.cdb_bytes[6],
1506 csio->cdb_io.cdb_bytes[7],
1507 csio->cdb_io.cdb_bytes[8],
1508 csio->cdb_io.cdb_bytes[9],
1509 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1510 csio->cdb_len, csio->dxfer_len,
1511 csio->sense_len);
1512}
1513
1514static void
1515sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1516{
1517 struct sbp_cmd_status *sbp_cmd_status;
| 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);
135SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
136SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
137 "SBP debug flag");
138SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
139 "SBP perform login automatically");
140SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
141 "SBP transfer max speed");
142SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
143 &ex_login, 0, "SBP enable exclusive login");
144SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
145 &login_delay, 0, "SBP login delay in msec");
146SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
147 &scan_delay, 0, "SBP scan delay in msec");
148SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW,
149 &use_doorbell, 0, "SBP use doorbell request");
150SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
151 "SBP tagged queuing support");
152
153TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
154TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
155TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
156TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
157TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
158TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell);
159TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
160
161#define NEED_RESPONSE 0
162
163#define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
164#ifdef __sparc64__ /* iommu */
165#define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX)
166#else
167#define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
168#endif
169struct sbp_ocb {
170 STAILQ_ENTRY(sbp_ocb) ocb;
171 union ccb *ccb;
172 bus_addr_t bus_addr;
173 uint32_t orb[8];
174#define IND_PTR_OFFSET (8*sizeof(uint32_t))
175 struct ind_ptr ind_ptr[SBP_IND_MAX];
176 struct sbp_dev *sdev;
177 int flags; /* XXX should be removed */
178 bus_dmamap_t dmamap;
179};
180
181#define OCB_ACT_MGM 0
182#define OCB_ACT_CMD 1
183#define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
184
185struct sbp_dev{
186#define SBP_DEV_RESET 0 /* accept login */
187#define SBP_DEV_LOGIN 1 /* to login */
188#if 0
189#define SBP_DEV_RECONN 2 /* to reconnect */
190#endif
191#define SBP_DEV_TOATTACH 3 /* to attach */
192#define SBP_DEV_PROBE 4 /* scan lun */
193#define SBP_DEV_ATTACHED 5 /* in operation */
194#define SBP_DEV_DEAD 6 /* unavailable unit */
195#define SBP_DEV_RETRY 7 /* unavailable unit */
196 uint8_t status:4,
197 timeout:4;
198 uint8_t type;
199 uint16_t lun_id;
200 uint16_t freeze;
201#define ORB_LINK_DEAD (1 << 0)
202#define VALID_LUN (1 << 1)
203#define ORB_POINTER_ACTIVE (1 << 2)
204#define ORB_POINTER_NEED (1 << 3)
205#define ORB_DOORBELL_ACTIVE (1 << 4)
206#define ORB_DOORBELL_NEED (1 << 5)
207#define ORB_SHORTAGE (1 << 6)
208 uint16_t flags;
209 struct cam_path *path;
210 struct sbp_target *target;
211 struct fwdma_alloc dma;
212 struct sbp_login_res *login;
213 struct callout login_callout;
214 struct sbp_ocb *ocb;
215 STAILQ_HEAD(, sbp_ocb) ocbs;
216 STAILQ_HEAD(, sbp_ocb) free_ocbs;
217 struct sbp_ocb *last_ocb;
218 char vendor[32];
219 char product[32];
220 char revision[10];
221 char bustgtlun[32];
222};
223
224struct sbp_target {
225 int target_id;
226 int num_lun;
227 struct sbp_dev **luns;
228 struct sbp_softc *sbp;
229 struct fw_device *fwdev;
230 uint32_t mgm_hi, mgm_lo;
231 struct sbp_ocb *mgm_ocb_cur;
232 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
233 struct callout mgm_ocb_timeout;
234 struct callout scan_callout;
235 STAILQ_HEAD(, fw_xfer) xferlist;
236 int n_xfer;
237};
238
239struct sbp_softc {
240 struct firewire_dev_comm fd;
241 struct cam_sim *sim;
242 struct cam_path *path;
243 struct sbp_target targets[SBP_NUM_TARGETS];
244 struct fw_bind fwb;
245 bus_dma_tag_t dmat;
246 struct timeval last_busreset;
247#define SIMQ_FREEZED 1
248 int flags;
249 struct mtx mtx;
250};
251#define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx)
252#define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx)
253
254static void sbp_post_explore (void *);
255static void sbp_recv (struct fw_xfer *);
256static void sbp_mgm_callback (struct fw_xfer *);
257#if 0
258static void sbp_cmd_callback (struct fw_xfer *);
259#endif
260static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
261static void sbp_doorbell(struct sbp_dev *);
262static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
263static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
264static void sbp_abort_ocb (struct sbp_ocb *, int);
265static void sbp_abort_all_ocbs (struct sbp_dev *, int);
266static struct fw_xfer * sbp_write_cmd_locked (struct sbp_dev *, int, int);
267static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
268static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
269static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
270static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
271static void sbp_cam_detach_sdev(struct sbp_dev *);
272static void sbp_free_sdev(struct sbp_dev *);
273static void sbp_cam_detach_target (struct sbp_target *);
274static void sbp_free_target (struct sbp_target *);
275static void sbp_mgm_timeout (void *arg);
276static void sbp_timeout (void *arg);
277static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
278
279MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
280
281/* cam related functions */
282static void sbp_action(struct cam_sim *sim, union ccb *ccb);
283static void sbp_poll(struct cam_sim *sim);
284static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
285static void sbp_cam_scan_target(void *arg);
286
287static char *orb_status0[] = {
288 /* 0 */ "No additional information to report",
289 /* 1 */ "Request type not supported",
290 /* 2 */ "Speed not supported",
291 /* 3 */ "Page size not supported",
292 /* 4 */ "Access denied",
293 /* 5 */ "Logical unit not supported",
294 /* 6 */ "Maximum payload too small",
295 /* 7 */ "Reserved for future standardization",
296 /* 8 */ "Resources unavailable",
297 /* 9 */ "Function rejected",
298 /* A */ "Login ID not recognized",
299 /* B */ "Dummy ORB completed",
300 /* C */ "Request aborted",
301 /* FF */ "Unspecified error"
302#define MAX_ORB_STATUS0 0xd
303};
304
305static char *orb_status1_object[] = {
306 /* 0 */ "Operation request block (ORB)",
307 /* 1 */ "Data buffer",
308 /* 2 */ "Page table",
309 /* 3 */ "Unable to specify"
310};
311
312static char *orb_status1_serial_bus_error[] = {
313 /* 0 */ "Missing acknowledge",
314 /* 1 */ "Reserved; not to be used",
315 /* 2 */ "Time-out error",
316 /* 3 */ "Reserved; not to be used",
317 /* 4 */ "Busy retry limit exceeded(X)",
318 /* 5 */ "Busy retry limit exceeded(A)",
319 /* 6 */ "Busy retry limit exceeded(B)",
320 /* 7 */ "Reserved for future standardization",
321 /* 8 */ "Reserved for future standardization",
322 /* 9 */ "Reserved for future standardization",
323 /* A */ "Reserved for future standardization",
324 /* B */ "Tardy retry limit exceeded",
325 /* C */ "Conflict error",
326 /* D */ "Data error",
327 /* E */ "Type error",
328 /* F */ "Address error"
329};
330
331static void
332sbp_identify(driver_t *driver, device_t parent)
333{
334SBP_DEBUG(0)
335 printf("sbp_identify\n");
336END_DEBUG
337
338 BUS_ADD_CHILD(parent, 0, "sbp", device_get_unit(parent));
339}
340
341/*
342 * sbp_probe()
343 */
344static int
345sbp_probe(device_t dev)
346{
347 device_t pa;
348
349SBP_DEBUG(0)
350 printf("sbp_probe\n");
351END_DEBUG
352
353 pa = device_get_parent(dev);
354 if(device_get_unit(dev) != device_get_unit(pa)){
355 return(ENXIO);
356 }
357
358 device_set_desc(dev, "SBP-2/SCSI over FireWire");
359
360#if 0
361 if (bootverbose)
362 debug = bootverbose;
363#endif
364
365 return (0);
366}
367
368/*
369 * Display device characteristics on the console
370 */
371static void
372sbp_show_sdev_info(struct sbp_dev *sdev)
373{
374 struct fw_device *fwdev;
375
376 fwdev = sdev->target->fwdev;
377 device_printf(sdev->target->sbp->fd.dev,
378 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d "
379 "speed:%d maxrec:%d\n",
380 __func__,
381 sdev->bustgtlun,
382 (sdev->type & 0x40) >> 6,
383 (sdev->type & 0x1f),
384 fwdev->eui.hi,
385 fwdev->eui.lo,
386 fwdev->dst,
387 fwdev->speed,
388 fwdev->maxrec);
389
390 device_printf(sdev->target->sbp->fd.dev,
391 "%s: %s '%s' '%s' '%s'\n",
392 __func__,
393 sdev->bustgtlun,
394 sdev->vendor,
395 sdev->product,
396 sdev->revision);
397}
398
399static struct {
400 int bus;
401 int target;
402 struct fw_eui64 eui;
403} wired[] = {
404 /* Bus Target EUI64 */
405#if 0
406 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
407 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
408 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
409#endif
410 {-1, -1, {0,0}}
411};
412
413static int
414sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
415{
416 int bus, i, target=-1;
417 char w[SBP_NUM_TARGETS];
418
419 bzero(w, sizeof(w));
420 bus = device_get_unit(sbp->fd.dev);
421
422 /* XXX wired-down configuration should be gotten from
423 tunable or device hint */
424 for (i = 0; wired[i].bus >= 0; i ++) {
425 if (wired[i].bus == bus) {
426 w[wired[i].target] = 1;
427 if (wired[i].eui.hi == fwdev->eui.hi &&
428 wired[i].eui.lo == fwdev->eui.lo)
429 target = wired[i].target;
430 }
431 }
432 if (target >= 0) {
433 if(target < SBP_NUM_TARGETS &&
434 sbp->targets[target].fwdev == NULL)
435 return(target);
436 device_printf(sbp->fd.dev,
437 "target %d is not free for %08x:%08x\n",
438 target, fwdev->eui.hi, fwdev->eui.lo);
439 target = -1;
440 }
441 /* non-wired target */
442 for (i = 0; i < SBP_NUM_TARGETS; i ++)
443 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
444 target = i;
445 break;
446 }
447
448 return target;
449}
450
451static void
452sbp_alloc_lun(struct sbp_target *target)
453{
454 struct crom_context cc;
455 struct csrreg *reg;
456 struct sbp_dev *sdev, **newluns;
457 struct sbp_softc *sbp;
458 int maxlun, lun, i;
459
460 sbp = target->sbp;
461 crom_init_context(&cc, target->fwdev->csrrom);
462 /* XXX shoud parse appropriate unit directories only */
463 maxlun = -1;
464 while (cc.depth >= 0) {
465 reg = crom_search_key(&cc, CROM_LUN);
466 if (reg == NULL)
467 break;
468 lun = reg->val & 0xffff;
469SBP_DEBUG(0)
470 printf("target %d lun %d found\n", target->target_id, lun);
471END_DEBUG
472 if (maxlun < lun)
473 maxlun = lun;
474 crom_next(&cc);
475 }
476 if (maxlun < 0)
477 printf("%s:%d no LUN found\n",
478 device_get_nameunit(target->sbp->fd.dev),
479 target->target_id);
480
481 maxlun ++;
482 if (maxlun >= SBP_NUM_LUNS)
483 maxlun = SBP_NUM_LUNS;
484
485 /* Invalidiate stale devices */
486 for (lun = 0; lun < target->num_lun; lun ++) {
487 sdev = target->luns[lun];
488 if (sdev == NULL)
489 continue;
490 sdev->flags &= ~VALID_LUN;
491 if (lun >= maxlun) {
492 /* lost device */
493 sbp_cam_detach_sdev(sdev);
494 sbp_free_sdev(sdev);
495 target->luns[lun] = NULL;
496 }
497 }
498
499 /* Reallocate */
500 if (maxlun != target->num_lun) {
501 newluns = (struct sbp_dev **) realloc(target->luns,
502 sizeof(struct sbp_dev *) * maxlun,
503 M_SBP, M_NOWAIT | M_ZERO);
504
505 if (newluns == NULL) {
506 printf("%s: realloc failed\n", __func__);
507 newluns = target->luns;
508 maxlun = target->num_lun;
509 }
510
511 /*
512 * We must zero the extended region for the case
513 * realloc() doesn't allocate new buffer.
514 */
515 if (maxlun > target->num_lun)
516 bzero(&newluns[target->num_lun],
517 sizeof(struct sbp_dev *) *
518 (maxlun - target->num_lun));
519
520 target->luns = newluns;
521 target->num_lun = maxlun;
522 }
523
524 crom_init_context(&cc, target->fwdev->csrrom);
525 while (cc.depth >= 0) {
526 int new = 0;
527
528 reg = crom_search_key(&cc, CROM_LUN);
529 if (reg == NULL)
530 break;
531 lun = reg->val & 0xffff;
532 if (lun >= SBP_NUM_LUNS) {
533 printf("too large lun %d\n", lun);
534 goto next;
535 }
536
537 sdev = target->luns[lun];
538 if (sdev == NULL) {
539 sdev = malloc(sizeof(struct sbp_dev),
540 M_SBP, M_NOWAIT | M_ZERO);
541 if (sdev == NULL) {
542 printf("%s: malloc failed\n", __func__);
543 goto next;
544 }
545 target->luns[lun] = sdev;
546 sdev->lun_id = lun;
547 sdev->target = target;
548 STAILQ_INIT(&sdev->ocbs);
549 CALLOUT_INIT(&sdev->login_callout);
550 sdev->status = SBP_DEV_RESET;
551 new = 1;
552 snprintf(sdev->bustgtlun, 32, "%s:%d:%d",
553 device_get_nameunit(sdev->target->sbp->fd.dev),
554 sdev->target->target_id,
555 sdev->lun_id);
556 }
557 sdev->flags |= VALID_LUN;
558 sdev->type = (reg->val & 0xff0000) >> 16;
559
560 if (new == 0)
561 goto next;
562
563 fwdma_malloc(sbp->fd.fc,
564 /* alignment */ sizeof(uint32_t),
565 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT |
566 BUS_DMA_COHERENT);
567 if (sdev->dma.v_addr == NULL) {
568 printf("%s: dma space allocation failed\n",
569 __func__);
570 free(sdev, M_SBP);
571 target->luns[lun] = NULL;
572 goto next;
573 }
574 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
575 sdev->ocb = (struct sbp_ocb *)
576 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
577 bzero((char *)sdev->ocb,
578 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
579
580 STAILQ_INIT(&sdev->free_ocbs);
581 for (i = 0; i < SBP_QUEUE_LEN; i++) {
582 struct sbp_ocb *ocb;
583 ocb = &sdev->ocb[i];
584 ocb->bus_addr = sdev->dma.bus_addr
585 + SBP_LOGIN_SIZE
586 + sizeof(struct sbp_ocb) * i
587 + offsetof(struct sbp_ocb, orb[0]);
588 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
589 printf("sbp_attach: cannot create dmamap\n");
590 /* XXX */
591 goto next;
592 }
593 sbp_free_ocb(sdev, ocb);
594 }
595next:
596 crom_next(&cc);
597 }
598
599 for (lun = 0; lun < target->num_lun; lun ++) {
600 sdev = target->luns[lun];
601 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
602 sbp_cam_detach_sdev(sdev);
603 sbp_free_sdev(sdev);
604 target->luns[lun] = NULL;
605 }
606 }
607}
608
609static struct sbp_target *
610sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
611{
612 int i;
613 struct sbp_target *target;
614 struct crom_context cc;
615 struct csrreg *reg;
616
617SBP_DEBUG(1)
618 printf("sbp_alloc_target\n");
619END_DEBUG
620 i = sbp_new_target(sbp, fwdev);
621 if (i < 0) {
622 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
623 return NULL;
624 }
625 /* new target */
626 target = &sbp->targets[i];
627 target->sbp = sbp;
628 target->fwdev = fwdev;
629 target->target_id = i;
630 /* XXX we may want to reload mgm port after each bus reset */
631 /* XXX there might be multiple management agents */
632 crom_init_context(&cc, target->fwdev->csrrom);
633 reg = crom_search_key(&cc, CROM_MGM);
634 if (reg == NULL || reg->val == 0) {
635 printf("NULL management address\n");
636 target->fwdev = NULL;
637 return NULL;
638 }
639 target->mgm_hi = 0xffff;
640 target->mgm_lo = 0xf0000000 | (reg->val << 2);
641 target->mgm_ocb_cur = NULL;
642SBP_DEBUG(1)
643 printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
644END_DEBUG
645 STAILQ_INIT(&target->xferlist);
646 target->n_xfer = 0;
647 STAILQ_INIT(&target->mgm_ocb_queue);
648 CALLOUT_INIT(&target->mgm_ocb_timeout);
649 CALLOUT_INIT(&target->scan_callout);
650
651 target->luns = NULL;
652 target->num_lun = 0;
653 return target;
654}
655
656static void
657sbp_probe_lun(struct sbp_dev *sdev)
658{
659 struct fw_device *fwdev;
660 struct crom_context c, *cc = &c;
661 struct csrreg *reg;
662
663 bzero(sdev->vendor, sizeof(sdev->vendor));
664 bzero(sdev->product, sizeof(sdev->product));
665
666 fwdev = sdev->target->fwdev;
667 crom_init_context(cc, fwdev->csrrom);
668 /* get vendor string */
669 crom_search_key(cc, CSRKEY_VENDOR);
670 crom_next(cc);
671 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
672 /* skip to the unit directory for SBP-2 */
673 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
674 if (reg->val == CSRVAL_T10SBP2)
675 break;
676 crom_next(cc);
677 }
678 /* get firmware revision */
679 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
680 if (reg != NULL)
681 snprintf(sdev->revision, sizeof(sdev->revision),
682 "%06x", reg->val);
683 /* get product string */
684 crom_search_key(cc, CSRKEY_MODEL);
685 crom_next(cc);
686 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
687}
688
689static void
690sbp_login_callout(void *arg)
691{
692 struct sbp_dev *sdev = (struct sbp_dev *)arg;
693 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
694}
695
696static void
697sbp_login(struct sbp_dev *sdev)
698{
699 struct timeval delta;
700 struct timeval t;
701 int ticks = 0;
702
703 microtime(&delta);
704 timevalsub(&delta, &sdev->target->sbp->last_busreset);
705 t.tv_sec = login_delay / 1000;
706 t.tv_usec = (login_delay % 1000) * 1000;
707 timevalsub(&t, &delta);
708 if (t.tv_sec >= 0 && t.tv_usec > 0)
709 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
710SBP_DEBUG(0)
711 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__,
712 (intmax_t)t.tv_sec, t.tv_usec, ticks);
713END_DEBUG
714 callout_reset(&sdev->login_callout, ticks,
715 sbp_login_callout, (void *)(sdev));
716}
717
718#define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
719 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
720
721static void
722sbp_probe_target(void *arg)
723{
724 struct sbp_target *target = (struct sbp_target *)arg;
725 struct sbp_softc *sbp = target->sbp;
726 struct sbp_dev *sdev;
727 int i, alive;
728
729 alive = SBP_FWDEV_ALIVE(target->fwdev);
730SBP_DEBUG(1)
731 device_printf(sbp->fd.dev, "%s %d%salive\n",
732 __func__, target->target_id,
733 (!alive) ? " not " : "");
734END_DEBUG
735
736 sbp = target->sbp;
737 sbp_alloc_lun(target);
738
739 /* XXX untimeout mgm_ocb and dequeue */
740 for (i=0; i < target->num_lun; i++) {
741 sdev = target->luns[i];
742 if (sdev == NULL)
743 continue;
744 if (alive && (sdev->status != SBP_DEV_DEAD)) {
745 if (sdev->path != NULL) {
746 SBP_LOCK(sbp);
747 xpt_freeze_devq(sdev->path, 1);
748 sdev->freeze ++;
749 SBP_UNLOCK(sbp);
750 }
751 sbp_probe_lun(sdev);
752 sbp_show_sdev_info(sdev);
753
754 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
755 switch (sdev->status) {
756 case SBP_DEV_RESET:
757 /* new or revived target */
758 if (auto_login)
759 sbp_login(sdev);
760 break;
761 case SBP_DEV_TOATTACH:
762 case SBP_DEV_PROBE:
763 case SBP_DEV_ATTACHED:
764 case SBP_DEV_RETRY:
765 default:
766 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
767 break;
768 }
769 } else {
770 switch (sdev->status) {
771 case SBP_DEV_ATTACHED:
772SBP_DEBUG(0)
773 /* the device has gone */
774 device_printf(sbp->fd.dev, "%s: lost target\n",
775 __func__);
776END_DEBUG
777 if (sdev->path) {
778 SBP_LOCK(sbp);
779 xpt_freeze_devq(sdev->path, 1);
780 sdev->freeze ++;
781 SBP_UNLOCK(sbp);
782 }
783 sdev->status = SBP_DEV_RETRY;
784 sbp_cam_detach_sdev(sdev);
785 sbp_free_sdev(sdev);
786 target->luns[i] = NULL;
787 break;
788 case SBP_DEV_PROBE:
789 case SBP_DEV_TOATTACH:
790 sdev->status = SBP_DEV_RESET;
791 break;
792 case SBP_DEV_RETRY:
793 case SBP_DEV_RESET:
794 case SBP_DEV_DEAD:
795 break;
796 }
797 }
798 }
799}
800
801static void
802sbp_post_busreset(void *arg)
803{
804 struct sbp_softc *sbp;
805
806 sbp = (struct sbp_softc *)arg;
807SBP_DEBUG(0)
808 printf("sbp_post_busreset\n");
809END_DEBUG
810 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
811 SBP_LOCK(sbp);
812 xpt_freeze_simq(sbp->sim, /*count*/1);
813 sbp->sim->flags |= SIMQ_FREEZED;
814 SBP_UNLOCK(sbp);
815 }
816 microtime(&sbp->last_busreset);
817}
818
819static void
820sbp_post_explore(void *arg)
821{
822 struct sbp_softc *sbp = (struct sbp_softc *)arg;
823 struct sbp_target *target;
824 struct fw_device *fwdev;
825 int i, alive;
826
827SBP_DEBUG(0)
828 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
829END_DEBUG
830 /* We need physical access */
831 if (!firewire_phydma_enable)
832 return;
833
834 if (sbp_cold > 0)
835 sbp_cold --;
836
837#if 0
838 /*
839 * XXX don't let CAM the bus rest.
840 * CAM tries to do something with freezed (DEV_RETRY) devices.
841 */
842 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
843#endif
844
845 /* Garbage Collection */
846 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
847 target = &sbp->targets[i];
848 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
849 if (target->fwdev == NULL || target->fwdev == fwdev)
850 break;
851 if (fwdev == NULL) {
852 /* device has removed in lower driver */
853 sbp_cam_detach_target(target);
854 sbp_free_target(target);
855 }
856 }
857 /* traverse device list */
858 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
859SBP_DEBUG(0)
860 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n",
861 __func__, fwdev->eui.hi, fwdev->eui.lo,
862 (fwdev->status != FWDEVATTACHED) ? "not" : "",
863 fwdev->status);
864END_DEBUG
865 alive = SBP_FWDEV_ALIVE(fwdev);
866 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
867 target = &sbp->targets[i];
868 if(target->fwdev == fwdev ) {
869 /* known target */
870 break;
871 }
872 }
873 if(i == SBP_NUM_TARGETS){
874 if (alive) {
875 /* new target */
876 target = sbp_alloc_target(sbp, fwdev);
877 if (target == NULL)
878 continue;
879 } else {
880 continue;
881 }
882 }
883 sbp_probe_target((void *)target);
884 if (target->num_lun == 0)
885 sbp_free_target(target);
886 }
887 SBP_LOCK(sbp);
888 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
889 sbp->sim->flags &= ~SIMQ_FREEZED;
890 SBP_UNLOCK(sbp);
891}
892
893#if NEED_RESPONSE
894static void
895sbp_loginres_callback(struct fw_xfer *xfer){
896 int s;
897 struct sbp_dev *sdev;
898 sdev = (struct sbp_dev *)xfer->sc;
899SBP_DEBUG(1)
900 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__);
901END_DEBUG
902 /* recycle */
903 s = splfw();
904 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
905 splx(s);
906 return;
907}
908#endif
909
910static __inline void
911sbp_xfer_free(struct fw_xfer *xfer)
912{
913 struct sbp_dev *sdev;
914 int s;
915
916 sdev = (struct sbp_dev *)xfer->sc;
917 fw_xfer_unload(xfer);
918 s = splfw();
919 SBP_LOCK(sdev->target->sbp);
920 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
921 SBP_UNLOCK(sdev->target->sbp);
922 splx(s);
923}
924
925static void
926sbp_reset_start_callback(struct fw_xfer *xfer)
927{
928 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
929 struct sbp_target *target = sdev->target;
930 int i;
931
932 if (xfer->resp != 0) {
933 device_printf(sdev->target->sbp->fd.dev,
934 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
935 }
936
937 for (i = 0; i < target->num_lun; i++) {
938 tsdev = target->luns[i];
939 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
940 sbp_login(tsdev);
941 }
942}
943
944static void
945sbp_reset_start(struct sbp_dev *sdev)
946{
947 struct fw_xfer *xfer;
948 struct fw_pkt *fp;
949
950SBP_DEBUG(0)
951 device_printf(sdev->target->sbp->fd.dev,
952 "%s:%s\n", __func__,sdev->bustgtlun);
953END_DEBUG
954
955 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
956 xfer->hand = sbp_reset_start_callback;
957 fp = &xfer->send.hdr;
958 fp->mode.wreqq.dest_hi = 0xffff;
959 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
960 fp->mode.wreqq.data = htonl(0xf);
961 fw_asyreq(xfer->fc, -1, xfer);
962}
963
964static void
965sbp_mgm_callback(struct fw_xfer *xfer)
966{
967 struct sbp_dev *sdev;
968 int resp;
969
970 sdev = (struct sbp_dev *)xfer->sc;
971
972SBP_DEBUG(1)
973 device_printf(sdev->target->sbp->fd.dev,
974 "%s:%s\n", __func__, sdev->bustgtlun);
975END_DEBUG
976 resp = xfer->resp;
977 sbp_xfer_free(xfer);
978 return;
979}
980
981static struct sbp_dev *
982sbp_next_dev(struct sbp_target *target, int lun)
983{
984 struct sbp_dev **sdevp;
985 int i;
986
987 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
988 i++, sdevp++)
989 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
990 return(*sdevp);
991 return(NULL);
992}
993
994#define SCAN_PRI 1
995static void
996sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
997{
998 struct sbp_target *target;
999 struct sbp_dev *sdev;
1000
1001 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
1002 target = sdev->target;
1003SBP_DEBUG(0)
1004 device_printf(sdev->target->sbp->fd.dev,
1005 "%s:%s\n", __func__, sdev->bustgtlun);
1006END_DEBUG
1007 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1008 sdev->status = SBP_DEV_ATTACHED;
1009 } else {
1010 device_printf(sdev->target->sbp->fd.dev,
1011 "%s:%s failed\n", __func__, sdev->bustgtlun);
1012 }
1013 sdev = sbp_next_dev(target, sdev->lun_id + 1);
1014 if (sdev == NULL) {
1015 free(ccb, M_SBP);
1016 return;
1017 }
1018 /* reuse ccb */
1019 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1020 ccb->ccb_h.ccb_sdev_ptr = sdev;
1021 xpt_action(ccb);
1022 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1023 sdev->freeze = 1;
1024}
1025
1026static void
1027sbp_cam_scan_target(void *arg)
1028{
1029 struct sbp_target *target = (struct sbp_target *)arg;
1030 struct sbp_dev *sdev;
1031 union ccb *ccb;
1032
1033 sdev = sbp_next_dev(target, 0);
1034 if (sdev == NULL) {
1035 printf("sbp_cam_scan_target: nothing to do for target%d\n",
1036 target->target_id);
1037 return;
1038 }
1039SBP_DEBUG(0)
1040 device_printf(sdev->target->sbp->fd.dev,
1041 "%s:%s\n", __func__, sdev->bustgtlun);
1042END_DEBUG
1043 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
1044 if (ccb == NULL) {
1045 printf("sbp_cam_scan_target: malloc failed\n");
1046 return;
1047 }
1048 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1049 ccb->ccb_h.func_code = XPT_SCAN_LUN;
1050 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1051 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1052 ccb->crcn.flags = CAM_FLAG_NONE;
1053 ccb->ccb_h.ccb_sdev_ptr = sdev;
1054
1055 /* The scan is in progress now. */
1056 SBP_LOCK(target->sbp);
1057 xpt_action(ccb);
1058 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1059 sdev->freeze = 1;
1060 SBP_UNLOCK(target->sbp);
1061}
1062
1063static __inline void
1064sbp_scan_dev(struct sbp_dev *sdev)
1065{
1066 sdev->status = SBP_DEV_PROBE;
1067 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1068 sbp_cam_scan_target, (void *)sdev->target);
1069}
1070
1071static void
1072sbp_do_attach(struct fw_xfer *xfer)
1073{
1074 struct sbp_dev *sdev;
1075 struct sbp_target *target;
1076 struct sbp_softc *sbp;
1077
1078 sdev = (struct sbp_dev *)xfer->sc;
1079 target = sdev->target;
1080 sbp = target->sbp;
1081SBP_DEBUG(0)
1082 device_printf(sdev->target->sbp->fd.dev,
1083 "%s:%s\n", __func__, sdev->bustgtlun);
1084END_DEBUG
1085 sbp_xfer_free(xfer);
1086
1087 if (sdev->path == NULL)
1088 xpt_create_path(&sdev->path, xpt_periph,
1089 cam_sim_path(target->sbp->sim),
1090 target->target_id, sdev->lun_id);
1091
1092 /*
1093 * Let CAM scan the bus if we are in the boot process.
1094 * XXX xpt_scan_bus cannot detect LUN larger than 0
1095 * if LUN 0 doesn't exists.
1096 */
1097 if (sbp_cold > 0) {
1098 sdev->status = SBP_DEV_ATTACHED;
1099 return;
1100 }
1101
1102 sbp_scan_dev(sdev);
1103 return;
1104}
1105
1106static void
1107sbp_agent_reset_callback(struct fw_xfer *xfer)
1108{
1109 struct sbp_dev *sdev;
1110
1111 sdev = (struct sbp_dev *)xfer->sc;
1112SBP_DEBUG(1)
1113 device_printf(sdev->target->sbp->fd.dev,
1114 "%s:%s\n", __func__, sdev->bustgtlun);
1115END_DEBUG
1116 if (xfer->resp != 0) {
1117 device_printf(sdev->target->sbp->fd.dev,
1118 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
1119 }
1120
1121 sbp_xfer_free(xfer);
1122 if (sdev->path) {
1123 SBP_LOCK(sdev->target->sbp);
1124 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1125 sdev->freeze = 0;
1126 SBP_UNLOCK(sdev->target->sbp);
1127 }
1128}
1129
1130static void
1131sbp_agent_reset(struct sbp_dev *sdev)
1132{
1133 struct fw_xfer *xfer;
1134 struct fw_pkt *fp;
1135
1136SBP_DEBUG(0)
1137 device_printf(sdev->target->sbp->fd.dev,
1138 "%s:%s\n", __func__, sdev->bustgtlun);
1139END_DEBUG
1140 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1141 if (xfer == NULL)
1142 return;
1143 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1144 xfer->hand = sbp_agent_reset_callback;
1145 else
1146 xfer->hand = sbp_do_attach;
1147 fp = &xfer->send.hdr;
1148 fp->mode.wreqq.data = htonl(0xf);
1149 fw_asyreq(xfer->fc, -1, xfer);
1150 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1151}
1152
1153static void
1154sbp_busy_timeout_callback(struct fw_xfer *xfer)
1155{
1156 struct sbp_dev *sdev;
1157
1158 sdev = (struct sbp_dev *)xfer->sc;
1159SBP_DEBUG(1)
1160 device_printf(sdev->target->sbp->fd.dev,
1161 "%s:%s\n", __func__, sdev->bustgtlun);
1162END_DEBUG
1163 sbp_xfer_free(xfer);
1164 sbp_agent_reset(sdev);
1165}
1166
1167static void
1168sbp_busy_timeout(struct sbp_dev *sdev)
1169{
1170 struct fw_pkt *fp;
1171 struct fw_xfer *xfer;
1172SBP_DEBUG(0)
1173 device_printf(sdev->target->sbp->fd.dev,
1174 "%s:%s\n", __func__, sdev->bustgtlun);
1175END_DEBUG
1176 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1177
1178 xfer->hand = sbp_busy_timeout_callback;
1179 fp = &xfer->send.hdr;
1180 fp->mode.wreqq.dest_hi = 0xffff;
1181 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1182 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1183 fw_asyreq(xfer->fc, -1, xfer);
1184}
1185
1186static void
1187sbp_orb_pointer_callback(struct fw_xfer *xfer)
1188{
1189 struct sbp_dev *sdev;
1190 sdev = (struct sbp_dev *)xfer->sc;
1191
1192SBP_DEBUG(2)
1193 device_printf(sdev->target->sbp->fd.dev,
1194 "%s:%s\n", __func__, sdev->bustgtlun);
1195END_DEBUG
1196 if (xfer->resp != 0) {
1197 /* XXX */
1198 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1199 }
1200 sbp_xfer_free(xfer);
1201
1202 SBP_LOCK(sdev->target->sbp);
1203 sdev->flags &= ~ORB_POINTER_ACTIVE;
1204
1205 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1206 struct sbp_ocb *ocb;
1207
1208 sdev->flags &= ~ORB_POINTER_NEED;
1209 ocb = STAILQ_FIRST(&sdev->ocbs);
1210 if (ocb != NULL)
1211 sbp_orb_pointer(sdev, ocb);
1212 }
1213 SBP_UNLOCK(sdev->target->sbp);
1214 return;
1215}
1216
1217static void
1218sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1219{
1220 struct fw_xfer *xfer;
1221 struct fw_pkt *fp;
1222SBP_DEBUG(1)
1223 device_printf(sdev->target->sbp->fd.dev,
1224 "%s:%s 0x%08x\n",
1225 __func__, sdev->bustgtlun,
1226 (uint32_t)ocb->bus_addr);
1227END_DEBUG
1228
1229 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1230
1231 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1232SBP_DEBUG(0)
1233 printf("%s: orb pointer active\n", __func__);
1234END_DEBUG
1235 sdev->flags |= ORB_POINTER_NEED;
1236 return;
1237 }
1238
1239 sdev->flags |= ORB_POINTER_ACTIVE;
1240 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQB, 0x08);
1241 if (xfer == NULL)
1242 return;
1243 xfer->hand = sbp_orb_pointer_callback;
1244
1245 fp = &xfer->send.hdr;
1246 fp->mode.wreqb.len = 8;
1247 fp->mode.wreqb.extcode = 0;
1248 xfer->send.payload[0] =
1249 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1250 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
1251
1252 /*
1253 * sbp_xfer_free() will attempt to acquire
1254 * the SBP lock on entrance. Also, this removes
1255 * a LOR between the firewire layer and sbp
1256 */
1257 SBP_UNLOCK(sdev->target->sbp);
1258 if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1259 sbp_xfer_free(xfer);
1260 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1261 xpt_done(ocb->ccb);
1262 }
1263 SBP_LOCK(sdev->target->sbp);
1264}
1265
1266static void
1267sbp_doorbell_callback(struct fw_xfer *xfer)
1268{
1269 struct sbp_dev *sdev;
1270 sdev = (struct sbp_dev *)xfer->sc;
1271
1272SBP_DEBUG(1)
1273 device_printf(sdev->target->sbp->fd.dev,
1274 "%s:%s\n", __func__, sdev->bustgtlun);
1275END_DEBUG
1276 if (xfer->resp != 0) {
1277 /* XXX */
1278 device_printf(sdev->target->sbp->fd.dev,
1279 "%s: xfer->resp = %d\n", __func__, xfer->resp);
1280 }
1281 sbp_xfer_free(xfer);
1282 sdev->flags &= ~ORB_DOORBELL_ACTIVE;
1283 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
1284 sdev->flags &= ~ORB_DOORBELL_NEED;
1285 SBP_LOCK(sdev->target->sbp);
1286 sbp_doorbell(sdev);
1287 SBP_UNLOCK(sdev->target->sbp);
1288 }
1289 return;
1290}
1291
1292static void
1293sbp_doorbell(struct sbp_dev *sdev)
1294{
1295 struct fw_xfer *xfer;
1296 struct fw_pkt *fp;
1297SBP_DEBUG(1)
1298 device_printf(sdev->target->sbp->fd.dev,
1299 "%s:%s\n", __func__, sdev->bustgtlun);
1300END_DEBUG
1301
1302 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
1303 sdev->flags |= ORB_DOORBELL_NEED;
1304 return;
1305 }
1306 sdev->flags |= ORB_DOORBELL_ACTIVE;
1307 xfer = sbp_write_cmd_locked(sdev, FWTCODE_WREQQ, 0x10);
1308 if (xfer == NULL)
1309 return;
1310 xfer->hand = sbp_doorbell_callback;
1311 fp = &xfer->send.hdr;
1312 fp->mode.wreqq.data = htonl(0xf);
1313 fw_asyreq(xfer->fc, -1, xfer);
1314}
1315
1316static struct fw_xfer *
1317sbp_write_cmd_locked(struct sbp_dev *sdev, int tcode, int offset)
1318{
1319 struct fw_xfer *xfer;
1320 struct fw_pkt *fp;
1321 struct sbp_target *target;
1322 int s, new = 0;
1323
1324 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
1325
1326 target = sdev->target;
1327 s = splfw();
1328 xfer = STAILQ_FIRST(&target->xferlist);
1329 if (xfer == NULL) {
1330 if (target->n_xfer > 5 /* XXX */) {
1331 printf("sbp: no more xfer for this target\n");
1332 splx(s);
1333 return(NULL);
1334 }
1335 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1336 if(xfer == NULL){
1337 printf("sbp: fw_xfer_alloc_buf failed\n");
1338 splx(s);
1339 return NULL;
1340 }
1341 target->n_xfer ++;
1342 if (debug)
1343 printf("sbp: alloc %d xfer\n", target->n_xfer);
1344 new = 1;
1345 } else {
1346 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1347 }
1348 splx(s);
1349
1350 if (new) {
1351 xfer->recv.pay_len = 0;
1352 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1353 xfer->fc = sdev->target->sbp->fd.fc;
1354 }
1355
1356 if (tcode == FWTCODE_WREQB)
1357 xfer->send.pay_len = 8;
1358 else
1359 xfer->send.pay_len = 0;
1360
1361 xfer->sc = (caddr_t)sdev;
1362 fp = &xfer->send.hdr;
1363 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1364 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1365 fp->mode.wreqq.tlrt = 0;
1366 fp->mode.wreqq.tcode = tcode;
1367 fp->mode.wreqq.pri = 0;
1368 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1369
1370 return xfer;
1371
1372}
1373
1374static struct fw_xfer *
1375sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1376{
1377 struct sbp_softc *sbp = sdev->target->sbp;
1378 struct fw_xfer *xfer;
1379
1380 SBP_LOCK(sbp);
1381 xfer = sbp_write_cmd_locked(sdev, tcode, offset);
1382 SBP_UNLOCK(sbp);
1383
1384 return (xfer);
1385}
1386
1387static void
1388sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1389{
1390 struct fw_xfer *xfer;
1391 struct fw_pkt *fp;
1392 struct sbp_ocb *ocb;
1393 struct sbp_target *target;
1394 int s, nid;
1395
1396 target = sdev->target;
1397 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1398
1399 s = splfw();
1400 SBP_LOCK(target->sbp);
1401 if (func == ORB_FUN_RUNQUEUE) {
1402 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1403 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1404 SBP_UNLOCK(target->sbp);
1405 splx(s);
1406 return;
1407 }
1408 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1409 SBP_UNLOCK(target->sbp);
1410 goto start;
1411 }
1412 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1413 SBP_UNLOCK(target->sbp);
1414 splx(s);
1415 /* XXX */
1416 return;
1417 }
1418 SBP_UNLOCK(target->sbp);
1419 ocb->flags = OCB_ACT_MGM;
1420 ocb->sdev = sdev;
1421
1422 bzero((void *)ocb->orb, sizeof(ocb->orb));
1423 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1424 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1425
1426SBP_DEBUG(0)
1427 device_printf(sdev->target->sbp->fd.dev,
1428 "%s:%s %s\n",
1429 __func__,sdev->bustgtlun,
1430 orb_fun_name[(func>>16)&0xf]);
1431END_DEBUG
1432 switch (func) {
1433 case ORB_FUN_LGI:
1434 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1435 ocb->orb[2] = htonl(nid << 16);
1436 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1437 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1438 if (ex_login)
1439 ocb->orb[4] |= htonl(ORB_EXV);
1440 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1441 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1442 break;
1443 case ORB_FUN_ATA:
1444 ocb->orb[0] = htonl((0 << 16) | 0);
1445 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1446 /* fall through */
1447 case ORB_FUN_RCN:
1448 case ORB_FUN_LGO:
1449 case ORB_FUN_LUR:
1450 case ORB_FUN_RST:
1451 case ORB_FUN_ATS:
1452 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1453 break;
1454 }
1455
1456 if (target->mgm_ocb_cur != NULL) {
1457 /* there is a standing ORB */
1458 SBP_LOCK(target->sbp);
1459 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1460 SBP_UNLOCK(target->sbp);
1461 splx(s);
1462 return;
1463 }
1464start:
1465 target->mgm_ocb_cur = ocb;
1466 splx(s);
1467
1468 callout_reset(&target->mgm_ocb_timeout, 5*hz,
1469 sbp_mgm_timeout, (caddr_t)ocb);
1470 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1471 if(xfer == NULL){
1472 return;
1473 }
1474 xfer->hand = sbp_mgm_callback;
1475
1476 fp = &xfer->send.hdr;
1477 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1478 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1479 fp->mode.wreqb.len = 8;
1480 fp->mode.wreqb.extcode = 0;
1481 xfer->send.payload[0] = htonl(nid << 16);
1482 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1483
1484 fw_asyreq(xfer->fc, -1, xfer);
1485}
1486
1487static void
1488sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1489{
1490 struct ccb_scsiio *csio;
1491
1492 csio = &ocb->ccb->csio;
1493 printf("%s:%d:%d XPT_SCSI_IO: "
1494 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1495 ", flags: 0x%02x, "
1496 "%db cmd/%db data/%db sense\n",
1497 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1498 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1499 csio->cdb_io.cdb_bytes[0],
1500 csio->cdb_io.cdb_bytes[1],
1501 csio->cdb_io.cdb_bytes[2],
1502 csio->cdb_io.cdb_bytes[3],
1503 csio->cdb_io.cdb_bytes[4],
1504 csio->cdb_io.cdb_bytes[5],
1505 csio->cdb_io.cdb_bytes[6],
1506 csio->cdb_io.cdb_bytes[7],
1507 csio->cdb_io.cdb_bytes[8],
1508 csio->cdb_io.cdb_bytes[9],
1509 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1510 csio->cdb_len, csio->dxfer_len,
1511 csio->sense_len);
1512}
1513
1514static void
1515sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1516{
1517 struct sbp_cmd_status *sbp_cmd_status;
|
1518 struct scsi_sense_data *sense;
| 1518 struct scsi_sense_data_fixed *sense;
|
1519
1520 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
| 1519
1520 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
|
1521 sense = &ocb->ccb->csio.sense_data;
| 1521 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data;
|
1522
1523SBP_DEBUG(0)
1524 sbp_print_scsi_cmd(ocb);
1525 /* XXX need decode status */
1526 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1527 ocb->sdev->bustgtlun,
1528 sbp_cmd_status->status,
1529 sbp_cmd_status->sfmt,
1530 sbp_cmd_status->valid,
1531 sbp_cmd_status->s_key,
1532 sbp_cmd_status->s_code,
1533 sbp_cmd_status->s_qlfr,
1534 sbp_status->len);
1535END_DEBUG
1536
1537 switch (sbp_cmd_status->status) {
1538 case SCSI_STATUS_CHECK_COND:
1539 case SCSI_STATUS_BUSY:
1540 case SCSI_STATUS_CMD_TERMINATED:
1541 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1542 sense->error_code = SSD_CURRENT_ERROR;
1543 }else{
1544 sense->error_code = SSD_DEFERRED_ERROR;
1545 }
1546 if(sbp_cmd_status->valid)
1547 sense->error_code |= SSD_ERRCODE_VALID;
1548 sense->flags = sbp_cmd_status->s_key;
1549 if(sbp_cmd_status->mark)
1550 sense->flags |= SSD_FILEMARK;
1551 if(sbp_cmd_status->eom)
1552 sense->flags |= SSD_EOM;
1553 if(sbp_cmd_status->ill_len)
1554 sense->flags |= SSD_ILI;
1555
1556 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1557
1558 if (sbp_status->len <= 1)
1559 /* XXX not scsi status. shouldn't be happened */
1560 sense->extra_len = 0;
1561 else if (sbp_status->len <= 4)
1562 /* add_sense_code(_qual), info, cmd_spec_info */
1563 sense->extra_len = 6;
1564 else
1565 /* fru, sense_key_spec */
1566 sense->extra_len = 10;
1567
1568 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1569
1570 sense->add_sense_code = sbp_cmd_status->s_code;
1571 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1572 sense->fru = sbp_cmd_status->fru;
1573
1574 bcopy(&sbp_cmd_status->s_keydep[0],
1575 &sense->sense_key_spec[0], 3);
1576
1577 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1578 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1579 | CAM_AUTOSNS_VALID;
1580/*
1581{
1582 uint8_t j, *tmp;
1583 tmp = sense;
1584 for( j = 0 ; j < 32 ; j+=8){
1585 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1586 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1587 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1588 }
1589
1590}
1591*/
1592 break;
1593 default:
1594 device_printf(ocb->sdev->target->sbp->fd.dev,
1595 "%s:%s unknown scsi status 0x%x\n",
1596 __func__, ocb->sdev->bustgtlun,
1597 sbp_cmd_status->status);
1598 }
1599}
1600
1601static void
1602sbp_fix_inq_data(struct sbp_ocb *ocb)
1603{
1604 union ccb *ccb;
1605 struct sbp_dev *sdev;
1606 struct scsi_inquiry_data *inq;
1607
1608 ccb = ocb->ccb;
1609 sdev = ocb->sdev;
1610
1611 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1612 return;
1613SBP_DEBUG(1)
1614 device_printf(sdev->target->sbp->fd.dev,
1615 "%s:%s\n", __func__, sdev->bustgtlun);
1616END_DEBUG
1617 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1618 switch (SID_TYPE(inq)) {
1619 case T_DIRECT:
1620#if 0
1621 /*
1622 * XXX Convert Direct Access device to RBC.
1623 * I've never seen FireWire DA devices which support READ_6.
1624 */
1625 if (SID_TYPE(inq) == T_DIRECT)
1626 inq->device |= T_RBC; /* T_DIRECT == 0 */
1627#endif
1628 /* fall through */
1629 case T_RBC:
1630 /*
1631 * Override vendor/product/revision information.
1632 * Some devices sometimes return strange strings.
1633 */
1634#if 1
1635 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1636 bcopy(sdev->product, inq->product, sizeof(inq->product));
1637 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1638#endif
1639 break;
1640 }
1641 /*
1642 * Force to enable/disable tagged queuing.
1643 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
1644 */
1645 if (sbp_tags > 0)
1646 inq->flags |= SID_CmdQue;
1647 else if (sbp_tags < 0)
1648 inq->flags &= ~SID_CmdQue;
1649
1650}
1651
1652static void
1653sbp_recv1(struct fw_xfer *xfer)
1654{
1655 struct fw_pkt *rfp;
1656#if NEED_RESPONSE
1657 struct fw_pkt *sfp;
1658#endif
1659 struct sbp_softc *sbp;
1660 struct sbp_dev *sdev;
1661 struct sbp_ocb *ocb;
1662 struct sbp_login_res *login_res = NULL;
1663 struct sbp_status *sbp_status;
1664 struct sbp_target *target;
1665 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1666 uint32_t addr;
1667/*
1668 uint32_t *ld;
1669 ld = xfer->recv.buf;
1670printf("sbp %x %d %d %08x %08x %08x %08x\n",
1671 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1672printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1673printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1674*/
1675 sbp = (struct sbp_softc *)xfer->sc;
1676 if (xfer->resp != 0){
1677 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1678 goto done0;
1679 }
1680 if (xfer->recv.payload == NULL){
1681 printf("sbp_recv: xfer->recv.payload == NULL\n");
1682 goto done0;
1683 }
1684 rfp = &xfer->recv.hdr;
1685 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1686 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1687 goto done0;
1688 }
1689 sbp_status = (struct sbp_status *)xfer->recv.payload;
1690 addr = rfp->mode.wreqb.dest_lo;
1691SBP_DEBUG(2)
1692 printf("received address 0x%x\n", addr);
1693END_DEBUG
1694 t = SBP_ADDR2TRG(addr);
1695 if (t >= SBP_NUM_TARGETS) {
1696 device_printf(sbp->fd.dev,
1697 "sbp_recv1: invalid target %d\n", t);
1698 goto done0;
1699 }
1700 target = &sbp->targets[t];
1701 l = SBP_ADDR2LUN(addr);
1702 if (l >= target->num_lun || target->luns[l] == NULL) {
1703 device_printf(sbp->fd.dev,
1704 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1705 goto done0;
1706 }
1707 sdev = target->luns[l];
1708
1709 ocb = NULL;
1710 switch (sbp_status->src) {
1711 case 0:
1712 case 1:
1713 /* check mgm_ocb_cur first */
1714 ocb = target->mgm_ocb_cur;
1715 if (ocb != NULL) {
1716 if (OCB_MATCH(ocb, sbp_status)) {
1717 callout_stop(&target->mgm_ocb_timeout);
1718 target->mgm_ocb_cur = NULL;
1719 break;
1720 }
1721 }
1722 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1723 if (ocb == NULL) {
1724 device_printf(sdev->target->sbp->fd.dev,
1725#if defined(__DragonFly__) || __FreeBSD_version < 500000
1726 "%s:%s No ocb(%lx) on the queue\n",
1727#else
1728 "%s:%s No ocb(%x) on the queue\n",
1729#endif
1730 __func__,sdev->bustgtlun,
1731 ntohl(sbp_status->orb_lo));
1732 }
1733 break;
1734 case 2:
1735 /* unsolicit */
1736 device_printf(sdev->target->sbp->fd.dev,
1737 "%s:%s unsolicit status received\n",
1738 __func__, sdev->bustgtlun);
1739 break;
1740 default:
1741 device_printf(sdev->target->sbp->fd.dev,
1742 "%s:%s unknown sbp_status->src\n",
1743 __func__, sdev->bustgtlun);
1744 }
1745
1746 status_valid0 = (sbp_status->src < 2
1747 && sbp_status->resp == ORB_RES_CMPL
1748 && sbp_status->dead == 0);
1749 status_valid = (status_valid0 && sbp_status->status == 0);
1750
1751 if (!status_valid0 || debug > 2){
1752 int status;
1753SBP_DEBUG(0)
1754 device_printf(sdev->target->sbp->fd.dev,
1755 "%s:%s ORB status src:%x resp:%x dead:%x"
1756#if defined(__DragonFly__) || __FreeBSD_version < 500000
1757 " len:%x stat:%x orb:%x%08lx\n",
1758#else
1759 " len:%x stat:%x orb:%x%08x\n",
1760#endif
1761 __func__, sdev->bustgtlun,
1762 sbp_status->src, sbp_status->resp, sbp_status->dead,
1763 sbp_status->len, sbp_status->status,
1764 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1765END_DEBUG
1766 device_printf(sdev->target->sbp->fd.dev,
1767 "%s\n", sdev->bustgtlun);
1768 status = sbp_status->status;
1769 switch(sbp_status->resp) {
1770 case 0:
1771 if (status > MAX_ORB_STATUS0)
1772 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1773 else
1774 printf("%s\n", orb_status0[status]);
1775 break;
1776 case 1:
1777 printf("Obj: %s, Error: %s\n",
1778 orb_status1_object[(status>>6) & 3],
1779 orb_status1_serial_bus_error[status & 0xf]);
1780 break;
1781 case 2:
1782 printf("Illegal request\n");
1783 break;
1784 case 3:
1785 printf("Vendor dependent\n");
1786 break;
1787 default:
1788 printf("unknown respose code %d\n", sbp_status->resp);
1789 }
1790 }
1791
1792 /* we have to reset the fetch agent if it's dead */
1793 if (sbp_status->dead) {
1794 if (sdev->path) {
1795 SBP_LOCK(sbp);
1796 xpt_freeze_devq(sdev->path, 1);
1797 sdev->freeze ++;
1798 SBP_UNLOCK(sbp);
1799 }
1800 reset_agent = 1;
1801 }
1802
1803 if (ocb == NULL)
1804 goto done;
1805
1806 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1807 case ORB_FMT_NOP:
1808 break;
1809 case ORB_FMT_VED:
1810 break;
1811 case ORB_FMT_STD:
1812 switch(ocb->flags) {
1813 case OCB_ACT_MGM:
1814 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1815 reset_agent = 0;
1816 switch(orb_fun) {
1817 case ORB_FUN_LGI:
1818 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1819 login_res = sdev->login;
1820 login_res->len = ntohs(login_res->len);
1821 login_res->id = ntohs(login_res->id);
1822 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1823 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1824 if (status_valid) {
1825SBP_DEBUG(0)
1826 device_printf(sdev->target->sbp->fd.dev,
1827 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n",
1828 __func__, sdev->bustgtlun,
1829 login_res->len, login_res->id,
1830 login_res->cmd_hi, login_res->cmd_lo,
1831 ntohs(login_res->recon_hold));
1832END_DEBUG
1833 sbp_busy_timeout(sdev);
1834 } else {
1835 /* forgot logout? */
1836 device_printf(sdev->target->sbp->fd.dev,
1837 "%s:%s login failed\n",
1838 __func__, sdev->bustgtlun);
1839 sdev->status = SBP_DEV_RESET;
1840 }
1841 break;
1842 case ORB_FUN_RCN:
1843 login_res = sdev->login;
1844 if (status_valid) {
1845SBP_DEBUG(0)
1846 device_printf(sdev->target->sbp->fd.dev,
1847 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n",
1848 __func__, sdev->bustgtlun,
1849 login_res->len, login_res->id,
1850 login_res->cmd_hi, login_res->cmd_lo);
1851END_DEBUG
1852 if (sdev->status == SBP_DEV_ATTACHED)
1853 sbp_scan_dev(sdev);
1854 else
1855 sbp_agent_reset(sdev);
1856 } else {
1857 /* reconnection hold time exceed? */
1858SBP_DEBUG(0)
1859 device_printf(sdev->target->sbp->fd.dev,
1860 "%s:%s reconnect failed\n",
1861 __func__, sdev->bustgtlun);
1862END_DEBUG
1863 sbp_login(sdev);
1864 }
1865 break;
1866 case ORB_FUN_LGO:
1867 sdev->status = SBP_DEV_RESET;
1868 break;
1869 case ORB_FUN_RST:
1870 sbp_busy_timeout(sdev);
1871 break;
1872 case ORB_FUN_LUR:
1873 case ORB_FUN_ATA:
1874 case ORB_FUN_ATS:
1875 sbp_agent_reset(sdev);
1876 break;
1877 default:
1878 device_printf(sdev->target->sbp->fd.dev,
1879 "%s:%s unknown function %d\n",
1880 __func__, sdev->bustgtlun, orb_fun);
1881 break;
1882 }
1883 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1884 break;
1885 case OCB_ACT_CMD:
1886 sdev->timeout = 0;
1887 if(ocb->ccb != NULL){
1888 union ccb *ccb;
1889
1890 ccb = ocb->ccb;
1891 if(sbp_status->len > 1){
1892 sbp_scsi_status(sbp_status, ocb);
1893 }else{
1894 if(sbp_status->resp != ORB_RES_CMPL){
1895 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1896 }else{
1897 ccb->ccb_h.status = CAM_REQ_CMP;
1898 }
1899 }
1900 /* fix up inq data */
1901 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1902 sbp_fix_inq_data(ocb);
1903 SBP_LOCK(sbp);
1904 xpt_done(ccb);
1905 SBP_UNLOCK(sbp);
1906 }
1907 break;
1908 default:
1909 break;
1910 }
1911 }
1912
1913 if (!use_doorbell)
1914 sbp_free_ocb(sdev, ocb);
1915done:
1916 if (reset_agent)
1917 sbp_agent_reset(sdev);
1918
1919done0:
1920 xfer->recv.pay_len = SBP_RECV_LEN;
1921/* The received packet is usually small enough to be stored within
1922 * the buffer. In that case, the controller return ack_complete and
1923 * no respose is necessary.
1924 *
1925 * XXX fwohci.c and firewire.c should inform event_code such as
1926 * ack_complete or ack_pending to upper driver.
1927 */
1928#if NEED_RESPONSE
1929 xfer->send.off = 0;
1930 sfp = (struct fw_pkt *)xfer->send.buf;
1931 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1932 xfer->dst = sfp->mode.wres.dst;
1933 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1934 xfer->hand = sbp_loginres_callback;
1935
1936 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1937 sfp->mode.wres.tcode = FWTCODE_WRES;
1938 sfp->mode.wres.rtcode = 0;
1939 sfp->mode.wres.pri = 0;
1940
1941 fw_asyreq(xfer->fc, -1, xfer);
1942#else
1943 /* recycle */
1944 /* we don't need a lock here because bottom half is serialized */
1945 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1946#endif
1947
1948 return;
1949
1950}
1951
1952static void
1953sbp_recv(struct fw_xfer *xfer)
1954{
1955 int s;
1956
1957 s = splcam();
1958 sbp_recv1(xfer);
1959 splx(s);
1960}
1961/*
1962 * sbp_attach()
1963 */
1964static int
1965sbp_attach(device_t dev)
1966{
1967 struct sbp_softc *sbp;
1968 struct cam_devq *devq;
1969 struct firewire_comm *fc;
1970 int i, s, error;
1971
1972 if (DFLTPHYS > SBP_MAXPHYS)
1973 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than "
1974 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024,
1975 SBP_MAXPHYS / 1024);
1976
1977 if (!firewire_phydma_enable)
1978 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 "
1979 "for SBP over FireWire.\n");
1980SBP_DEBUG(0)
1981 printf("sbp_attach (cold=%d)\n", cold);
1982END_DEBUG
1983
1984 if (cold)
1985 sbp_cold ++;
1986 sbp = ((struct sbp_softc *)device_get_softc(dev));
1987 bzero(sbp, sizeof(struct sbp_softc));
1988 sbp->fd.dev = dev;
1989 sbp->fd.fc = fc = device_get_ivars(dev);
1990 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF);
1991
1992 if (max_speed < 0)
1993 max_speed = fc->speed;
1994
1995 error = bus_dma_tag_create(/*parent*/fc->dmat,
1996 /* XXX shoud be 4 for sane backend? */
1997 /*alignment*/1,
1998 /*boundary*/0,
1999 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
2000 /*highaddr*/BUS_SPACE_MAXADDR,
2001 /*filter*/NULL, /*filterarg*/NULL,
2002 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
2003 /*maxsegsz*/SBP_SEG_MAX,
2004 /*flags*/BUS_DMA_ALLOCNOW,
2005#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
2006 /*lockfunc*/busdma_lock_mutex,
2007 /*lockarg*/&sbp->mtx,
2008#endif
2009 &sbp->dmat);
2010 if (error != 0) {
2011 printf("sbp_attach: Could not allocate DMA tag "
2012 "- error %d\n", error);
2013 return (ENOMEM);
2014 }
2015
2016 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
2017 if (devq == NULL)
2018 return (ENXIO);
2019
2020 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
2021 sbp->targets[i].fwdev = NULL;
2022 sbp->targets[i].luns = NULL;
2023 }
2024
2025 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
2026 device_get_unit(dev),
2027 &sbp->mtx,
2028 /*untagged*/ 1,
2029 /*tagged*/ SBP_QUEUE_LEN - 1,
2030 devq);
2031
2032 if (sbp->sim == NULL) {
2033 cam_simq_free(devq);
2034 return (ENXIO);
2035 }
2036
2037 SBP_LOCK(sbp);
2038 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS)
2039 goto fail;
2040
2041 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
2042 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2043 xpt_bus_deregister(cam_sim_path(sbp->sim));
2044 goto fail;
2045 }
2046 SBP_UNLOCK(sbp);
2047
2048 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
2049 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
2050 sbp->fwb.end = sbp->fwb.start + 0xffff;
2051 /* pre-allocate xfer */
2052 STAILQ_INIT(&sbp->fwb.xferlist);
2053 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP,
2054 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2,
2055 fc, (void *)sbp, sbp_recv);
2056
2057 fw_bindadd(fc, &sbp->fwb);
2058
2059 sbp->fd.post_busreset = sbp_post_busreset;
2060 sbp->fd.post_explore = sbp_post_explore;
2061
2062 if (fc->status != -1) {
2063 s = splfw();
2064 sbp_post_busreset((void *)sbp);
2065 sbp_post_explore((void *)sbp);
2066 splx(s);
2067 }
2068 SBP_LOCK(sbp);
2069 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
2070 SBP_UNLOCK(sbp);
2071
2072 return (0);
2073fail:
2074 SBP_UNLOCK(sbp);
2075 cam_sim_free(sbp->sim, /*free_devq*/TRUE);
2076 return (ENXIO);
2077}
2078
2079static int
2080sbp_logout_all(struct sbp_softc *sbp)
2081{
2082 struct sbp_target *target;
2083 struct sbp_dev *sdev;
2084 int i, j;
2085
2086SBP_DEBUG(0)
2087 printf("sbp_logout_all\n");
2088END_DEBUG
2089 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
2090 target = &sbp->targets[i];
2091 if (target->luns == NULL)
2092 continue;
2093 for (j = 0; j < target->num_lun; j++) {
2094 sdev = target->luns[j];
2095 if (sdev == NULL)
2096 continue;
2097 callout_stop(&sdev->login_callout);
2098 if (sdev->status >= SBP_DEV_TOATTACH &&
2099 sdev->status <= SBP_DEV_ATTACHED)
2100 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
2101 }
2102 }
2103
2104 return 0;
2105}
2106
2107static int
2108sbp_shutdown(device_t dev)
2109{
2110 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2111
2112 sbp_logout_all(sbp);
2113 return (0);
2114}
2115
2116static void
2117sbp_free_sdev(struct sbp_dev *sdev)
2118{
2119 int i;
2120
2121 if (sdev == NULL)
2122 return;
2123 for (i = 0; i < SBP_QUEUE_LEN; i++)
2124 bus_dmamap_destroy(sdev->target->sbp->dmat,
2125 sdev->ocb[i].dmamap);
2126 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
2127 free(sdev, M_SBP);
2128 sdev = NULL;
2129}
2130
2131static void
2132sbp_free_target(struct sbp_target *target)
2133{
2134 struct sbp_softc *sbp;
2135 struct fw_xfer *xfer, *next;
2136 int i;
2137
2138 if (target->luns == NULL)
2139 return;
2140 callout_stop(&target->mgm_ocb_timeout);
2141 sbp = target->sbp;
2142 for (i = 0; i < target->num_lun; i++)
2143 sbp_free_sdev(target->luns[i]);
2144
2145 for (xfer = STAILQ_FIRST(&target->xferlist);
2146 xfer != NULL; xfer = next) {
2147 next = STAILQ_NEXT(xfer, link);
2148 fw_xfer_free_buf(xfer);
2149 }
2150 STAILQ_INIT(&target->xferlist);
2151 free(target->luns, M_SBP);
2152 target->num_lun = 0;
2153 target->luns = NULL;
2154 target->fwdev = NULL;
2155}
2156
2157static int
2158sbp_detach(device_t dev)
2159{
2160 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2161 struct firewire_comm *fc = sbp->fd.fc;
2162 int i;
2163
2164SBP_DEBUG(0)
2165 printf("sbp_detach\n");
2166END_DEBUG
2167
2168 for (i = 0; i < SBP_NUM_TARGETS; i ++)
2169 sbp_cam_detach_target(&sbp->targets[i]);
2170
2171 SBP_LOCK(sbp);
2172 xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2173 xpt_free_path(sbp->path);
2174 xpt_bus_deregister(cam_sim_path(sbp->sim));
2175 cam_sim_free(sbp->sim, /*free_devq*/ TRUE);
2176 SBP_UNLOCK(sbp);
2177
2178 sbp_logout_all(sbp);
2179
2180 /* XXX wait for logout completion */
2181 pause("sbpdtc", hz/2);
2182
2183 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2184 sbp_free_target(&sbp->targets[i]);
2185
2186 fw_bindremove(fc, &sbp->fwb);
2187 fw_xferlist_remove(&sbp->fwb.xferlist);
2188
2189 bus_dma_tag_destroy(sbp->dmat);
2190 mtx_destroy(&sbp->mtx);
2191
2192 return (0);
2193}
2194
2195static void
2196sbp_cam_detach_sdev(struct sbp_dev *sdev)
2197{
2198 if (sdev == NULL)
2199 return;
2200 if (sdev->status == SBP_DEV_DEAD)
2201 return;
2202 if (sdev->status == SBP_DEV_RESET)
2203 return;
2204 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2205 if (sdev->path) {
2206 SBP_LOCK(sdev->target->sbp);
2207 xpt_release_devq(sdev->path,
2208 sdev->freeze, TRUE);
2209 sdev->freeze = 0;
2210 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2211 xpt_free_path(sdev->path);
2212 sdev->path = NULL;
2213 SBP_UNLOCK(sdev->target->sbp);
2214 }
2215}
2216
2217static void
2218sbp_cam_detach_target(struct sbp_target *target)
2219{
2220 int i;
2221
2222 if (target->luns != NULL) {
2223SBP_DEBUG(0)
2224 printf("sbp_detach_target %d\n", target->target_id);
2225END_DEBUG
2226 callout_stop(&target->scan_callout);
2227 for (i = 0; i < target->num_lun; i++)
2228 sbp_cam_detach_sdev(target->luns[i]);
2229 }
2230}
2231
2232static void
2233sbp_target_reset(struct sbp_dev *sdev, int method)
2234{
2235 int i;
2236 struct sbp_target *target = sdev->target;
2237 struct sbp_dev *tsdev;
2238
2239 for (i = 0; i < target->num_lun; i++) {
2240 tsdev = target->luns[i];
2241 if (tsdev == NULL)
2242 continue;
2243 if (tsdev->status == SBP_DEV_DEAD)
2244 continue;
2245 if (tsdev->status == SBP_DEV_RESET)
2246 continue;
2247 SBP_LOCK(target->sbp);
2248 xpt_freeze_devq(tsdev->path, 1);
2249 tsdev->freeze ++;
2250 SBP_UNLOCK(target->sbp);
2251 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2252 if (method == 2)
2253 tsdev->status = SBP_DEV_LOGIN;
2254 }
2255 switch(method) {
2256 case 1:
2257 printf("target reset\n");
2258 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2259 break;
2260 case 2:
2261 printf("reset start\n");
2262 sbp_reset_start(sdev);
2263 break;
2264 }
2265
2266}
2267
2268static void
2269sbp_mgm_timeout(void *arg)
2270{
2271 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2272 struct sbp_dev *sdev = ocb->sdev;
2273 struct sbp_target *target = sdev->target;
2274
2275 device_printf(sdev->target->sbp->fd.dev,
2276 "%s:%s request timeout(mgm orb:0x%08x)\n",
2277 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2278 target->mgm_ocb_cur = NULL;
2279 sbp_free_ocb(sdev, ocb);
2280#if 0
2281 /* XXX */
2282 printf("run next request\n");
2283 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2284#endif
2285 device_printf(sdev->target->sbp->fd.dev,
2286 "%s:%s reset start\n",
2287 __func__, sdev->bustgtlun);
2288 sbp_reset_start(sdev);
2289}
2290
2291static void
2292sbp_timeout(void *arg)
2293{
2294 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2295 struct sbp_dev *sdev = ocb->sdev;
2296
2297 device_printf(sdev->target->sbp->fd.dev,
2298 "%s:%s request timeout(cmd orb:0x%08x) ... ",
2299 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2300
2301 sdev->timeout ++;
2302 switch(sdev->timeout) {
2303 case 1:
2304 printf("agent reset\n");
2305 SBP_LOCK(sdev->target->sbp);
2306 xpt_freeze_devq(sdev->path, 1);
2307 sdev->freeze ++;
2308 SBP_UNLOCK(sdev->target->sbp);
2309 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2310 sbp_agent_reset(sdev);
2311 break;
2312 case 2:
2313 case 3:
2314 sbp_target_reset(sdev, sdev->timeout - 1);
2315 break;
2316#if 0
2317 default:
2318 /* XXX give up */
2319 sbp_cam_detach_target(target);
2320 if (target->luns != NULL)
2321 free(target->luns, M_SBP);
2322 target->num_lun = 0;
2323 target->luns = NULL;
2324 target->fwdev = NULL;
2325#endif
2326 }
2327}
2328
2329static void
2330sbp_action1(struct cam_sim *sim, union ccb *ccb)
2331{
2332
2333 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2334 struct sbp_target *target = NULL;
2335 struct sbp_dev *sdev = NULL;
2336
2337 /* target:lun -> sdev mapping */
2338 if (sbp != NULL
2339 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2340 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2341 target = &sbp->targets[ccb->ccb_h.target_id];
2342 if (target->fwdev != NULL
2343 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2344 && ccb->ccb_h.target_lun < target->num_lun) {
2345 sdev = target->luns[ccb->ccb_h.target_lun];
2346 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2347 sdev->status != SBP_DEV_PROBE)
2348 sdev = NULL;
2349 }
2350 }
2351
2352SBP_DEBUG(1)
2353 if (sdev == NULL)
2354 printf("invalid target %d lun %d\n",
2355 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2356END_DEBUG
2357
2358 switch (ccb->ccb_h.func_code) {
2359 case XPT_SCSI_IO:
2360 case XPT_RESET_DEV:
2361 case XPT_GET_TRAN_SETTINGS:
2362 case XPT_SET_TRAN_SETTINGS:
2363 case XPT_CALC_GEOMETRY:
2364 if (sdev == NULL) {
2365SBP_DEBUG(1)
2366 printf("%s:%d:%d:func_code 0x%04x: "
2367 "Invalid target (target needed)\n",
2368 device_get_nameunit(sbp->fd.dev),
2369 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2370 ccb->ccb_h.func_code);
2371END_DEBUG
2372
2373 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2374 xpt_done(ccb);
2375 return;
2376 }
2377 break;
2378 case XPT_PATH_INQ:
2379 case XPT_NOOP:
2380 /* The opcodes sometimes aimed at a target (sc is valid),
2381 * sometimes aimed at the SIM (sc is invalid and target is
2382 * CAM_TARGET_WILDCARD)
2383 */
2384 if (sbp == NULL &&
2385 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2386SBP_DEBUG(0)
2387 printf("%s:%d:%d func_code 0x%04x: "
2388 "Invalid target (no wildcard)\n",
2389 device_get_nameunit(sbp->fd.dev),
2390 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2391 ccb->ccb_h.func_code);
2392END_DEBUG
2393 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2394 xpt_done(ccb);
2395 return;
2396 }
2397 break;
2398 default:
2399 /* XXX Hm, we should check the input parameters */
2400 break;
2401 }
2402
2403 switch (ccb->ccb_h.func_code) {
2404 case XPT_SCSI_IO:
2405 {
2406 struct ccb_scsiio *csio;
2407 struct sbp_ocb *ocb;
2408 int speed;
2409 void *cdb;
2410
2411 csio = &ccb->csio;
2412 mtx_assert(sim->mtx, MA_OWNED);
2413
2414SBP_DEBUG(2)
2415 printf("%s:%d:%d XPT_SCSI_IO: "
2416 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2417 ", flags: 0x%02x, "
2418 "%db cmd/%db data/%db sense\n",
2419 device_get_nameunit(sbp->fd.dev),
2420 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2421 csio->cdb_io.cdb_bytes[0],
2422 csio->cdb_io.cdb_bytes[1],
2423 csio->cdb_io.cdb_bytes[2],
2424 csio->cdb_io.cdb_bytes[3],
2425 csio->cdb_io.cdb_bytes[4],
2426 csio->cdb_io.cdb_bytes[5],
2427 csio->cdb_io.cdb_bytes[6],
2428 csio->cdb_io.cdb_bytes[7],
2429 csio->cdb_io.cdb_bytes[8],
2430 csio->cdb_io.cdb_bytes[9],
2431 ccb->ccb_h.flags & CAM_DIR_MASK,
2432 csio->cdb_len, csio->dxfer_len,
2433 csio->sense_len);
2434END_DEBUG
2435 if(sdev == NULL){
2436 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2437 xpt_done(ccb);
2438 return;
2439 }
2440#if 0
2441 /* if we are in probe stage, pass only probe commands */
2442 if (sdev->status == SBP_DEV_PROBE) {
2443 char *name;
2444 name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2445 printf("probe stage, periph name: %s\n", name);
2446 if (strcmp(name, "probe") != 0) {
2447 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2448 xpt_done(ccb);
2449 return;
2450 }
2451 }
2452#endif
2453 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2454 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2455 if (sdev->freeze == 0) {
2456 SBP_LOCK(sdev->target->sbp);
2457 xpt_freeze_devq(sdev->path, 1);
2458 sdev->freeze ++;
2459 SBP_UNLOCK(sdev->target->sbp);
2460 }
2461 xpt_done(ccb);
2462 return;
2463 }
2464
2465 ocb->flags = OCB_ACT_CMD;
2466 ocb->sdev = sdev;
2467 ocb->ccb = ccb;
2468 ccb->ccb_h.ccb_sdev_ptr = sdev;
2469 ocb->orb[0] = htonl(1 << 31);
2470 ocb->orb[1] = 0;
2471 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2472 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2473 speed = min(target->fwdev->speed, max_speed);
2474 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2475 | ORB_CMD_MAXP(speed + 7));
2476 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2477 ocb->orb[4] |= htonl(ORB_CMD_IN);
2478 }
2479
2480 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2481 printf("sbp: CAM_SCATTER_VALID\n");
2482 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2483 printf("sbp: CAM_DATA_PHYS\n");
2484
2485 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2486 cdb = (void *)csio->cdb_io.cdb_ptr;
2487 else
2488 cdb = (void *)&csio->cdb_io.cdb_bytes;
2489 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2490/*
2491printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2492printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2493*/
2494 if (ccb->csio.dxfer_len > 0) {
2495 int s, error;
2496
2497 s = splsoftvm();
2498 error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2499 /*dma map*/ocb->dmamap,
2500 ccb->csio.data_ptr,
2501 ccb->csio.dxfer_len,
2502 sbp_execute_ocb,
2503 ocb,
2504 /*flags*/0);
2505 splx(s);
2506 if (error)
2507 printf("sbp: bus_dmamap_load error %d\n", error);
2508 } else
2509 sbp_execute_ocb(ocb, NULL, 0, 0);
2510 break;
2511 }
2512 case XPT_CALC_GEOMETRY:
2513 {
2514 struct ccb_calc_geometry *ccg;
2515#if defined(__DragonFly__) || __FreeBSD_version < 501100
2516 uint32_t size_mb;
2517 uint32_t secs_per_cylinder;
2518 int extended = 1;
2519#endif
2520
2521 ccg = &ccb->ccg;
2522 if (ccg->block_size == 0) {
2523 printf("sbp_action1: block_size is 0.\n");
2524 ccb->ccb_h.status = CAM_REQ_INVALID;
2525 xpt_done(ccb);
2526 break;
2527 }
2528SBP_DEBUG(1)
2529 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
2530#if defined(__DragonFly__) || __FreeBSD_version < 500000
2531 "Volume size = %d\n",
2532#else
2533 "Volume size = %jd\n",
2534#endif
2535 device_get_nameunit(sbp->fd.dev),
2536 cam_sim_path(sbp->sim),
2537 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2538#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2539 (uintmax_t)
2540#endif
2541 ccg->volume_size);
2542END_DEBUG
2543
2544#if defined(__DragonFly__) || __FreeBSD_version < 501100
2545 size_mb = ccg->volume_size
2546 / ((1024L * 1024L) / ccg->block_size);
2547
2548 if (size_mb > 1024 && extended) {
2549 ccg->heads = 255;
2550 ccg->secs_per_track = 63;
2551 } else {
2552 ccg->heads = 64;
2553 ccg->secs_per_track = 32;
2554 }
2555 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2556 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2557 ccb->ccb_h.status = CAM_REQ_CMP;
2558#else
2559 cam_calc_geometry(ccg, /*extended*/1);
2560#endif
2561 xpt_done(ccb);
2562 break;
2563 }
2564 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
2565 {
2566
2567SBP_DEBUG(1)
2568 printf("%s:%d:XPT_RESET_BUS: \n",
2569 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2570END_DEBUG
2571
2572 ccb->ccb_h.status = CAM_REQ_INVALID;
2573 xpt_done(ccb);
2574 break;
2575 }
2576 case XPT_PATH_INQ: /* Path routing inquiry */
2577 {
2578 struct ccb_pathinq *cpi = &ccb->cpi;
2579
2580SBP_DEBUG(1)
2581 printf("%s:%d:%d XPT_PATH_INQ:.\n",
2582 device_get_nameunit(sbp->fd.dev),
2583 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2584END_DEBUG
2585 cpi->version_num = 1; /* XXX??? */
2586 cpi->hba_inquiry = PI_TAG_ABLE;
2587 cpi->target_sprt = 0;
2588 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2589 cpi->hba_eng_cnt = 0;
2590 cpi->max_target = SBP_NUM_TARGETS - 1;
2591 cpi->max_lun = SBP_NUM_LUNS - 1;
2592 cpi->initiator_id = SBP_INITIATOR;
2593 cpi->bus_id = sim->bus_id;
2594 cpi->base_transfer_speed = 400 * 1000 / 8;
2595 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2596 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2597 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2598 cpi->unit_number = sim->unit_number;
2599 cpi->transport = XPORT_SPI; /* XX should have a FireWire */
2600 cpi->transport_version = 2;
2601 cpi->protocol = PROTO_SCSI;
2602 cpi->protocol_version = SCSI_REV_2;
2603
2604 cpi->ccb_h.status = CAM_REQ_CMP;
2605 xpt_done(ccb);
2606 break;
2607 }
2608 case XPT_GET_TRAN_SETTINGS:
2609 {
2610 struct ccb_trans_settings *cts = &ccb->cts;
2611 struct ccb_trans_settings_scsi *scsi =
2612 &cts->proto_specific.scsi;
2613 struct ccb_trans_settings_spi *spi =
2614 &cts->xport_specific.spi;
2615
2616 cts->protocol = PROTO_SCSI;
2617 cts->protocol_version = SCSI_REV_2;
2618 cts->transport = XPORT_SPI; /* should have a FireWire */
2619 cts->transport_version = 2;
2620 spi->valid = CTS_SPI_VALID_DISC;
2621 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2622 scsi->valid = CTS_SCSI_VALID_TQ;
2623 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2624SBP_DEBUG(1)
2625 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2626 device_get_nameunit(sbp->fd.dev),
2627 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2628END_DEBUG
2629 cts->ccb_h.status = CAM_REQ_CMP;
2630 xpt_done(ccb);
2631 break;
2632 }
2633 case XPT_ABORT:
2634 ccb->ccb_h.status = CAM_UA_ABORT;
2635 xpt_done(ccb);
2636 break;
2637 case XPT_SET_TRAN_SETTINGS:
2638 /* XXX */
2639 default:
2640 ccb->ccb_h.status = CAM_REQ_INVALID;
2641 xpt_done(ccb);
2642 break;
2643 }
2644 return;
2645}
2646
2647static void
2648sbp_action(struct cam_sim *sim, union ccb *ccb)
2649{
2650 int s;
2651
2652 s = splfw();
2653 sbp_action1(sim, ccb);
2654 splx(s);
2655}
2656
2657static void
2658sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
2659{
2660 int i;
2661 struct sbp_ocb *ocb;
2662 struct sbp_ocb *prev;
2663 bus_dma_segment_t *s;
2664
2665 if (error)
2666 printf("sbp_execute_ocb: error=%d\n", error);
2667
2668 ocb = (struct sbp_ocb *)arg;
2669
2670SBP_DEBUG(2)
2671 printf("sbp_execute_ocb: seg %d", seg);
2672 for (i = 0; i < seg; i++)
2673#if defined(__DragonFly__) || __FreeBSD_version < 500000
2674 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2675#else
2676 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2677 (uintmax_t)segments[i].ds_len);
2678#endif
2679 printf("\n");
2680END_DEBUG
2681
2682 if (seg == 1) {
2683 /* direct pointer */
2684 s = &segments[0];
2685 if (s->ds_len > SBP_SEG_MAX)
2686 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2687 ocb->orb[3] = htonl(s->ds_addr);
2688 ocb->orb[4] |= htonl(s->ds_len);
2689 } else if(seg > 1) {
2690 /* page table */
2691 for (i = 0; i < seg; i++) {
2692 s = &segments[i];
2693SBP_DEBUG(0)
2694 /* XXX LSI Logic "< 16 byte" bug might be hit */
2695 if (s->ds_len < 16)
2696 printf("sbp_execute_ocb: warning, "
2697#if defined(__DragonFly__) || __FreeBSD_version < 500000
2698 "segment length(%d) is less than 16."
2699#else
2700 "segment length(%zd) is less than 16."
2701#endif
2702 "(seg=%d/%d)\n", (size_t)s->ds_len, i+1, seg);
2703END_DEBUG
2704 if (s->ds_len > SBP_SEG_MAX)
2705 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2706 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2707 ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2708 }
2709 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2710 }
2711
2712 if (seg > 0)
2713 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2714 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2715 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2716 prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2717 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2718 if (use_doorbell) {
2719 if (prev == NULL) {
2720 if (ocb->sdev->last_ocb != NULL)
2721 sbp_doorbell(ocb->sdev);
2722 else
2723 sbp_orb_pointer(ocb->sdev, ocb);
2724 }
2725 } else {
2726 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2727 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2728 sbp_orb_pointer(ocb->sdev, ocb);
2729 }
2730 }
2731}
2732
2733static void
2734sbp_poll(struct cam_sim *sim)
2735{
2736 struct sbp_softc *sbp;
2737 struct firewire_comm *fc;
2738
2739 sbp = (struct sbp_softc *)sim->softc;
2740 fc = sbp->fd.fc;
2741
2742 fc->poll(fc, 0, -1);
2743
2744 return;
2745}
2746
2747static struct sbp_ocb *
2748sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2749{
2750 struct sbp_ocb *ocb;
2751 struct sbp_ocb *next;
2752 int s = splfw(), order = 0;
2753 int flags;
2754
2755SBP_DEBUG(1)
2756 device_printf(sdev->target->sbp->fd.dev,
2757#if defined(__DragonFly__) || __FreeBSD_version < 500000
2758 "%s:%s 0x%08lx src %d\n",
2759#else
2760 "%s:%s 0x%08x src %d\n",
2761#endif
2762 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src);
2763END_DEBUG
2764 SBP_LOCK(sdev->target->sbp);
2765 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2766 next = STAILQ_NEXT(ocb, ocb);
2767 flags = ocb->flags;
2768 if (OCB_MATCH(ocb, sbp_status)) {
2769 /* found */
2770 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2771 if (ocb->ccb != NULL)
2772 untimeout(sbp_timeout, (caddr_t)ocb,
2773 ocb->ccb->ccb_h.timeout_ch);
2774 if (ntohl(ocb->orb[4]) & 0xffff) {
2775 bus_dmamap_sync(sdev->target->sbp->dmat,
2776 ocb->dmamap,
2777 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2778 BUS_DMASYNC_POSTREAD :
2779 BUS_DMASYNC_POSTWRITE);
2780 bus_dmamap_unload(sdev->target->sbp->dmat,
2781 ocb->dmamap);
2782 }
2783 if (!use_doorbell) {
2784 if (sbp_status->src == SRC_NO_NEXT) {
2785 if (next != NULL)
2786 sbp_orb_pointer(sdev, next);
2787 else if (order > 0) {
2788 /*
2789 * Unordered execution
2790 * We need to send pointer for
2791 * next ORB
2792 */
2793 sdev->flags |= ORB_LINK_DEAD;
2794 }
2795 }
2796 } else {
2797 /*
2798 * XXX this is not correct for unordered
2799 * execution.
2800 */
2801 if (sdev->last_ocb != NULL) {
2802 SBP_UNLOCK(sdev->target->sbp);
2803 sbp_free_ocb(sdev, sdev->last_ocb);
2804 SBP_LOCK(sdev->target->sbp);
2805 }
2806 sdev->last_ocb = ocb;
2807 if (next != NULL &&
2808 sbp_status->src == SRC_NO_NEXT)
2809 sbp_doorbell(sdev);
2810 }
2811 break;
2812 } else
2813 order ++;
2814 }
2815 SBP_UNLOCK(sdev->target->sbp);
2816 splx(s);
2817SBP_DEBUG(0)
2818 if (ocb && order > 0) {
2819 device_printf(sdev->target->sbp->fd.dev,
2820 "%s:%s unordered execution order:%d\n",
2821 __func__, sdev->bustgtlun, order);
2822 }
2823END_DEBUG
2824 return (ocb);
2825}
2826
2827static struct sbp_ocb *
2828sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2829{
2830 int s = splfw();
2831 struct sbp_ocb *prev, *prev2;
2832
2833 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2834SBP_DEBUG(1)
2835 device_printf(sdev->target->sbp->fd.dev,
2836#if defined(__DragonFly__) || __FreeBSD_version < 500000
2837 "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2838#else
2839 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2840#endif
2841END_DEBUG
2842 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2843 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2844
2845 if (ocb->ccb != NULL)
2846 ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
2847 (ocb->ccb->ccb_h.timeout * hz) / 1000);
2848
2849 if (use_doorbell && prev == NULL)
2850 prev2 = sdev->last_ocb;
2851
2852 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) {
2853SBP_DEBUG(1)
2854#if defined(__DragonFly__) || __FreeBSD_version < 500000
2855 printf("linking chain 0x%x -> 0x%x\n",
2856 prev2->bus_addr, ocb->bus_addr);
2857#else
2858 printf("linking chain 0x%jx -> 0x%jx\n",
2859 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
2860#endif
2861END_DEBUG
2862 /*
2863 * Suppress compiler optimization so that orb[1] must be written first.
2864 * XXX We may need an explicit memory barrier for other architectures
2865 * other than i386/amd64.
2866 */
2867 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr);
2868 *(volatile uint32_t *)&prev2->orb[0] = 0;
2869 }
2870 splx(s);
2871
2872 return prev;
2873}
2874
2875static struct sbp_ocb *
2876sbp_get_ocb(struct sbp_dev *sdev)
2877{
2878 struct sbp_ocb *ocb;
2879 int s = splfw();
2880
2881 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2882 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2883 if (ocb == NULL) {
2884 sdev->flags |= ORB_SHORTAGE;
2885 printf("ocb shortage!!!\n");
2886 splx(s);
2887 return NULL;
2888 }
2889 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2890 splx(s);
2891 ocb->ccb = NULL;
2892 return (ocb);
2893}
2894
2895static void
2896sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2897{
2898 ocb->flags = 0;
2899 ocb->ccb = NULL;
2900
2901 SBP_LOCK(sdev->target->sbp);
2902 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2903 if ((sdev->flags & ORB_SHORTAGE) != 0) {
2904 int count;
2905
2906 sdev->flags &= ~ORB_SHORTAGE;
2907 count = sdev->freeze;
2908 sdev->freeze = 0;
2909 xpt_release_devq(sdev->path, count, TRUE);
2910 }
2911 SBP_UNLOCK(sdev->target->sbp);
2912}
2913
2914static void
2915sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2916{
2917 struct sbp_dev *sdev;
2918
2919 sdev = ocb->sdev;
2920SBP_DEBUG(0)
2921 device_printf(sdev->target->sbp->fd.dev,
2922#if defined(__DragonFly__) || __FreeBSD_version < 500000
2923 "%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2924#else
2925 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2926#endif
2927END_DEBUG
2928SBP_DEBUG(1)
2929 if (ocb->ccb != NULL)
2930 sbp_print_scsi_cmd(ocb);
2931END_DEBUG
2932 if (ntohl(ocb->orb[4]) & 0xffff) {
2933 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2934 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2935 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2936 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2937 }
2938 if (ocb->ccb != NULL) {
2939 untimeout(sbp_timeout, (caddr_t)ocb,
2940 ocb->ccb->ccb_h.timeout_ch);
2941 ocb->ccb->ccb_h.status = status;
2942 SBP_LOCK(sdev->target->sbp);
2943 xpt_done(ocb->ccb);
2944 SBP_UNLOCK(sdev->target->sbp);
2945 }
2946 sbp_free_ocb(sdev, ocb);
2947}
2948
2949static void
2950sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2951{
2952 int s;
2953 struct sbp_ocb *ocb, *next;
2954 STAILQ_HEAD(, sbp_ocb) temp;
2955
2956 s = splfw();
2957
2958 STAILQ_INIT(&temp);
2959 SBP_LOCK(sdev->target->sbp);
2960 STAILQ_CONCAT(&temp, &sdev->ocbs);
2961 STAILQ_INIT(&sdev->ocbs);
2962 SBP_UNLOCK(sdev->target->sbp);
2963
2964 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2965 next = STAILQ_NEXT(ocb, ocb);
2966 sbp_abort_ocb(ocb, status);
2967 }
2968 if (sdev->last_ocb != NULL) {
2969 sbp_free_ocb(sdev, sdev->last_ocb);
2970 sdev->last_ocb = NULL;
2971 }
2972
2973 splx(s);
2974}
2975
2976static devclass_t sbp_devclass;
2977
2978static device_method_t sbp_methods[] = {
2979 /* device interface */
2980 DEVMETHOD(device_identify, sbp_identify),
2981 DEVMETHOD(device_probe, sbp_probe),
2982 DEVMETHOD(device_attach, sbp_attach),
2983 DEVMETHOD(device_detach, sbp_detach),
2984 DEVMETHOD(device_shutdown, sbp_shutdown),
2985
2986 { 0, 0 }
2987};
2988
2989static driver_t sbp_driver = {
2990 "sbp",
2991 sbp_methods,
2992 sizeof(struct sbp_softc),
2993};
2994#ifdef __DragonFly__
2995DECLARE_DUMMY_MODULE(sbp);
2996#endif
2997DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2998MODULE_VERSION(sbp, 1);
2999MODULE_DEPEND(sbp, firewire, 1, 1, 1);
3000MODULE_DEPEND(sbp, cam, 1, 1, 1);
| 1522
1523SBP_DEBUG(0)
1524 sbp_print_scsi_cmd(ocb);
1525 /* XXX need decode status */
1526 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1527 ocb->sdev->bustgtlun,
1528 sbp_cmd_status->status,
1529 sbp_cmd_status->sfmt,
1530 sbp_cmd_status->valid,
1531 sbp_cmd_status->s_key,
1532 sbp_cmd_status->s_code,
1533 sbp_cmd_status->s_qlfr,
1534 sbp_status->len);
1535END_DEBUG
1536
1537 switch (sbp_cmd_status->status) {
1538 case SCSI_STATUS_CHECK_COND:
1539 case SCSI_STATUS_BUSY:
1540 case SCSI_STATUS_CMD_TERMINATED:
1541 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1542 sense->error_code = SSD_CURRENT_ERROR;
1543 }else{
1544 sense->error_code = SSD_DEFERRED_ERROR;
1545 }
1546 if(sbp_cmd_status->valid)
1547 sense->error_code |= SSD_ERRCODE_VALID;
1548 sense->flags = sbp_cmd_status->s_key;
1549 if(sbp_cmd_status->mark)
1550 sense->flags |= SSD_FILEMARK;
1551 if(sbp_cmd_status->eom)
1552 sense->flags |= SSD_EOM;
1553 if(sbp_cmd_status->ill_len)
1554 sense->flags |= SSD_ILI;
1555
1556 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1557
1558 if (sbp_status->len <= 1)
1559 /* XXX not scsi status. shouldn't be happened */
1560 sense->extra_len = 0;
1561 else if (sbp_status->len <= 4)
1562 /* add_sense_code(_qual), info, cmd_spec_info */
1563 sense->extra_len = 6;
1564 else
1565 /* fru, sense_key_spec */
1566 sense->extra_len = 10;
1567
1568 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1569
1570 sense->add_sense_code = sbp_cmd_status->s_code;
1571 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1572 sense->fru = sbp_cmd_status->fru;
1573
1574 bcopy(&sbp_cmd_status->s_keydep[0],
1575 &sense->sense_key_spec[0], 3);
1576
1577 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1578 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1579 | CAM_AUTOSNS_VALID;
1580/*
1581{
1582 uint8_t j, *tmp;
1583 tmp = sense;
1584 for( j = 0 ; j < 32 ; j+=8){
1585 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1586 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1587 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1588 }
1589
1590}
1591*/
1592 break;
1593 default:
1594 device_printf(ocb->sdev->target->sbp->fd.dev,
1595 "%s:%s unknown scsi status 0x%x\n",
1596 __func__, ocb->sdev->bustgtlun,
1597 sbp_cmd_status->status);
1598 }
1599}
1600
1601static void
1602sbp_fix_inq_data(struct sbp_ocb *ocb)
1603{
1604 union ccb *ccb;
1605 struct sbp_dev *sdev;
1606 struct scsi_inquiry_data *inq;
1607
1608 ccb = ocb->ccb;
1609 sdev = ocb->sdev;
1610
1611 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1612 return;
1613SBP_DEBUG(1)
1614 device_printf(sdev->target->sbp->fd.dev,
1615 "%s:%s\n", __func__, sdev->bustgtlun);
1616END_DEBUG
1617 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1618 switch (SID_TYPE(inq)) {
1619 case T_DIRECT:
1620#if 0
1621 /*
1622 * XXX Convert Direct Access device to RBC.
1623 * I've never seen FireWire DA devices which support READ_6.
1624 */
1625 if (SID_TYPE(inq) == T_DIRECT)
1626 inq->device |= T_RBC; /* T_DIRECT == 0 */
1627#endif
1628 /* fall through */
1629 case T_RBC:
1630 /*
1631 * Override vendor/product/revision information.
1632 * Some devices sometimes return strange strings.
1633 */
1634#if 1
1635 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1636 bcopy(sdev->product, inq->product, sizeof(inq->product));
1637 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1638#endif
1639 break;
1640 }
1641 /*
1642 * Force to enable/disable tagged queuing.
1643 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
1644 */
1645 if (sbp_tags > 0)
1646 inq->flags |= SID_CmdQue;
1647 else if (sbp_tags < 0)
1648 inq->flags &= ~SID_CmdQue;
1649
1650}
1651
1652static void
1653sbp_recv1(struct fw_xfer *xfer)
1654{
1655 struct fw_pkt *rfp;
1656#if NEED_RESPONSE
1657 struct fw_pkt *sfp;
1658#endif
1659 struct sbp_softc *sbp;
1660 struct sbp_dev *sdev;
1661 struct sbp_ocb *ocb;
1662 struct sbp_login_res *login_res = NULL;
1663 struct sbp_status *sbp_status;
1664 struct sbp_target *target;
1665 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1666 uint32_t addr;
1667/*
1668 uint32_t *ld;
1669 ld = xfer->recv.buf;
1670printf("sbp %x %d %d %08x %08x %08x %08x\n",
1671 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1672printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1673printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1674*/
1675 sbp = (struct sbp_softc *)xfer->sc;
1676 if (xfer->resp != 0){
1677 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1678 goto done0;
1679 }
1680 if (xfer->recv.payload == NULL){
1681 printf("sbp_recv: xfer->recv.payload == NULL\n");
1682 goto done0;
1683 }
1684 rfp = &xfer->recv.hdr;
1685 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1686 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1687 goto done0;
1688 }
1689 sbp_status = (struct sbp_status *)xfer->recv.payload;
1690 addr = rfp->mode.wreqb.dest_lo;
1691SBP_DEBUG(2)
1692 printf("received address 0x%x\n", addr);
1693END_DEBUG
1694 t = SBP_ADDR2TRG(addr);
1695 if (t >= SBP_NUM_TARGETS) {
1696 device_printf(sbp->fd.dev,
1697 "sbp_recv1: invalid target %d\n", t);
1698 goto done0;
1699 }
1700 target = &sbp->targets[t];
1701 l = SBP_ADDR2LUN(addr);
1702 if (l >= target->num_lun || target->luns[l] == NULL) {
1703 device_printf(sbp->fd.dev,
1704 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1705 goto done0;
1706 }
1707 sdev = target->luns[l];
1708
1709 ocb = NULL;
1710 switch (sbp_status->src) {
1711 case 0:
1712 case 1:
1713 /* check mgm_ocb_cur first */
1714 ocb = target->mgm_ocb_cur;
1715 if (ocb != NULL) {
1716 if (OCB_MATCH(ocb, sbp_status)) {
1717 callout_stop(&target->mgm_ocb_timeout);
1718 target->mgm_ocb_cur = NULL;
1719 break;
1720 }
1721 }
1722 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1723 if (ocb == NULL) {
1724 device_printf(sdev->target->sbp->fd.dev,
1725#if defined(__DragonFly__) || __FreeBSD_version < 500000
1726 "%s:%s No ocb(%lx) on the queue\n",
1727#else
1728 "%s:%s No ocb(%x) on the queue\n",
1729#endif
1730 __func__,sdev->bustgtlun,
1731 ntohl(sbp_status->orb_lo));
1732 }
1733 break;
1734 case 2:
1735 /* unsolicit */
1736 device_printf(sdev->target->sbp->fd.dev,
1737 "%s:%s unsolicit status received\n",
1738 __func__, sdev->bustgtlun);
1739 break;
1740 default:
1741 device_printf(sdev->target->sbp->fd.dev,
1742 "%s:%s unknown sbp_status->src\n",
1743 __func__, sdev->bustgtlun);
1744 }
1745
1746 status_valid0 = (sbp_status->src < 2
1747 && sbp_status->resp == ORB_RES_CMPL
1748 && sbp_status->dead == 0);
1749 status_valid = (status_valid0 && sbp_status->status == 0);
1750
1751 if (!status_valid0 || debug > 2){
1752 int status;
1753SBP_DEBUG(0)
1754 device_printf(sdev->target->sbp->fd.dev,
1755 "%s:%s ORB status src:%x resp:%x dead:%x"
1756#if defined(__DragonFly__) || __FreeBSD_version < 500000
1757 " len:%x stat:%x orb:%x%08lx\n",
1758#else
1759 " len:%x stat:%x orb:%x%08x\n",
1760#endif
1761 __func__, sdev->bustgtlun,
1762 sbp_status->src, sbp_status->resp, sbp_status->dead,
1763 sbp_status->len, sbp_status->status,
1764 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1765END_DEBUG
1766 device_printf(sdev->target->sbp->fd.dev,
1767 "%s\n", sdev->bustgtlun);
1768 status = sbp_status->status;
1769 switch(sbp_status->resp) {
1770 case 0:
1771 if (status > MAX_ORB_STATUS0)
1772 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1773 else
1774 printf("%s\n", orb_status0[status]);
1775 break;
1776 case 1:
1777 printf("Obj: %s, Error: %s\n",
1778 orb_status1_object[(status>>6) & 3],
1779 orb_status1_serial_bus_error[status & 0xf]);
1780 break;
1781 case 2:
1782 printf("Illegal request\n");
1783 break;
1784 case 3:
1785 printf("Vendor dependent\n");
1786 break;
1787 default:
1788 printf("unknown respose code %d\n", sbp_status->resp);
1789 }
1790 }
1791
1792 /* we have to reset the fetch agent if it's dead */
1793 if (sbp_status->dead) {
1794 if (sdev->path) {
1795 SBP_LOCK(sbp);
1796 xpt_freeze_devq(sdev->path, 1);
1797 sdev->freeze ++;
1798 SBP_UNLOCK(sbp);
1799 }
1800 reset_agent = 1;
1801 }
1802
1803 if (ocb == NULL)
1804 goto done;
1805
1806 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1807 case ORB_FMT_NOP:
1808 break;
1809 case ORB_FMT_VED:
1810 break;
1811 case ORB_FMT_STD:
1812 switch(ocb->flags) {
1813 case OCB_ACT_MGM:
1814 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1815 reset_agent = 0;
1816 switch(orb_fun) {
1817 case ORB_FUN_LGI:
1818 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1819 login_res = sdev->login;
1820 login_res->len = ntohs(login_res->len);
1821 login_res->id = ntohs(login_res->id);
1822 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1823 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1824 if (status_valid) {
1825SBP_DEBUG(0)
1826 device_printf(sdev->target->sbp->fd.dev,
1827 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n",
1828 __func__, sdev->bustgtlun,
1829 login_res->len, login_res->id,
1830 login_res->cmd_hi, login_res->cmd_lo,
1831 ntohs(login_res->recon_hold));
1832END_DEBUG
1833 sbp_busy_timeout(sdev);
1834 } else {
1835 /* forgot logout? */
1836 device_printf(sdev->target->sbp->fd.dev,
1837 "%s:%s login failed\n",
1838 __func__, sdev->bustgtlun);
1839 sdev->status = SBP_DEV_RESET;
1840 }
1841 break;
1842 case ORB_FUN_RCN:
1843 login_res = sdev->login;
1844 if (status_valid) {
1845SBP_DEBUG(0)
1846 device_printf(sdev->target->sbp->fd.dev,
1847 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n",
1848 __func__, sdev->bustgtlun,
1849 login_res->len, login_res->id,
1850 login_res->cmd_hi, login_res->cmd_lo);
1851END_DEBUG
1852 if (sdev->status == SBP_DEV_ATTACHED)
1853 sbp_scan_dev(sdev);
1854 else
1855 sbp_agent_reset(sdev);
1856 } else {
1857 /* reconnection hold time exceed? */
1858SBP_DEBUG(0)
1859 device_printf(sdev->target->sbp->fd.dev,
1860 "%s:%s reconnect failed\n",
1861 __func__, sdev->bustgtlun);
1862END_DEBUG
1863 sbp_login(sdev);
1864 }
1865 break;
1866 case ORB_FUN_LGO:
1867 sdev->status = SBP_DEV_RESET;
1868 break;
1869 case ORB_FUN_RST:
1870 sbp_busy_timeout(sdev);
1871 break;
1872 case ORB_FUN_LUR:
1873 case ORB_FUN_ATA:
1874 case ORB_FUN_ATS:
1875 sbp_agent_reset(sdev);
1876 break;
1877 default:
1878 device_printf(sdev->target->sbp->fd.dev,
1879 "%s:%s unknown function %d\n",
1880 __func__, sdev->bustgtlun, orb_fun);
1881 break;
1882 }
1883 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1884 break;
1885 case OCB_ACT_CMD:
1886 sdev->timeout = 0;
1887 if(ocb->ccb != NULL){
1888 union ccb *ccb;
1889
1890 ccb = ocb->ccb;
1891 if(sbp_status->len > 1){
1892 sbp_scsi_status(sbp_status, ocb);
1893 }else{
1894 if(sbp_status->resp != ORB_RES_CMPL){
1895 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1896 }else{
1897 ccb->ccb_h.status = CAM_REQ_CMP;
1898 }
1899 }
1900 /* fix up inq data */
1901 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1902 sbp_fix_inq_data(ocb);
1903 SBP_LOCK(sbp);
1904 xpt_done(ccb);
1905 SBP_UNLOCK(sbp);
1906 }
1907 break;
1908 default:
1909 break;
1910 }
1911 }
1912
1913 if (!use_doorbell)
1914 sbp_free_ocb(sdev, ocb);
1915done:
1916 if (reset_agent)
1917 sbp_agent_reset(sdev);
1918
1919done0:
1920 xfer->recv.pay_len = SBP_RECV_LEN;
1921/* The received packet is usually small enough to be stored within
1922 * the buffer. In that case, the controller return ack_complete and
1923 * no respose is necessary.
1924 *
1925 * XXX fwohci.c and firewire.c should inform event_code such as
1926 * ack_complete or ack_pending to upper driver.
1927 */
1928#if NEED_RESPONSE
1929 xfer->send.off = 0;
1930 sfp = (struct fw_pkt *)xfer->send.buf;
1931 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1932 xfer->dst = sfp->mode.wres.dst;
1933 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1934 xfer->hand = sbp_loginres_callback;
1935
1936 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1937 sfp->mode.wres.tcode = FWTCODE_WRES;
1938 sfp->mode.wres.rtcode = 0;
1939 sfp->mode.wres.pri = 0;
1940
1941 fw_asyreq(xfer->fc, -1, xfer);
1942#else
1943 /* recycle */
1944 /* we don't need a lock here because bottom half is serialized */
1945 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1946#endif
1947
1948 return;
1949
1950}
1951
1952static void
1953sbp_recv(struct fw_xfer *xfer)
1954{
1955 int s;
1956
1957 s = splcam();
1958 sbp_recv1(xfer);
1959 splx(s);
1960}
1961/*
1962 * sbp_attach()
1963 */
1964static int
1965sbp_attach(device_t dev)
1966{
1967 struct sbp_softc *sbp;
1968 struct cam_devq *devq;
1969 struct firewire_comm *fc;
1970 int i, s, error;
1971
1972 if (DFLTPHYS > SBP_MAXPHYS)
1973 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than "
1974 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024,
1975 SBP_MAXPHYS / 1024);
1976
1977 if (!firewire_phydma_enable)
1978 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 "
1979 "for SBP over FireWire.\n");
1980SBP_DEBUG(0)
1981 printf("sbp_attach (cold=%d)\n", cold);
1982END_DEBUG
1983
1984 if (cold)
1985 sbp_cold ++;
1986 sbp = ((struct sbp_softc *)device_get_softc(dev));
1987 bzero(sbp, sizeof(struct sbp_softc));
1988 sbp->fd.dev = dev;
1989 sbp->fd.fc = fc = device_get_ivars(dev);
1990 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF);
1991
1992 if (max_speed < 0)
1993 max_speed = fc->speed;
1994
1995 error = bus_dma_tag_create(/*parent*/fc->dmat,
1996 /* XXX shoud be 4 for sane backend? */
1997 /*alignment*/1,
1998 /*boundary*/0,
1999 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
2000 /*highaddr*/BUS_SPACE_MAXADDR,
2001 /*filter*/NULL, /*filterarg*/NULL,
2002 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
2003 /*maxsegsz*/SBP_SEG_MAX,
2004 /*flags*/BUS_DMA_ALLOCNOW,
2005#if defined(__FreeBSD__) && __FreeBSD_version >= 501102
2006 /*lockfunc*/busdma_lock_mutex,
2007 /*lockarg*/&sbp->mtx,
2008#endif
2009 &sbp->dmat);
2010 if (error != 0) {
2011 printf("sbp_attach: Could not allocate DMA tag "
2012 "- error %d\n", error);
2013 return (ENOMEM);
2014 }
2015
2016 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
2017 if (devq == NULL)
2018 return (ENXIO);
2019
2020 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
2021 sbp->targets[i].fwdev = NULL;
2022 sbp->targets[i].luns = NULL;
2023 }
2024
2025 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
2026 device_get_unit(dev),
2027 &sbp->mtx,
2028 /*untagged*/ 1,
2029 /*tagged*/ SBP_QUEUE_LEN - 1,
2030 devq);
2031
2032 if (sbp->sim == NULL) {
2033 cam_simq_free(devq);
2034 return (ENXIO);
2035 }
2036
2037 SBP_LOCK(sbp);
2038 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS)
2039 goto fail;
2040
2041 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
2042 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2043 xpt_bus_deregister(cam_sim_path(sbp->sim));
2044 goto fail;
2045 }
2046 SBP_UNLOCK(sbp);
2047
2048 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
2049 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
2050 sbp->fwb.end = sbp->fwb.start + 0xffff;
2051 /* pre-allocate xfer */
2052 STAILQ_INIT(&sbp->fwb.xferlist);
2053 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP,
2054 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2,
2055 fc, (void *)sbp, sbp_recv);
2056
2057 fw_bindadd(fc, &sbp->fwb);
2058
2059 sbp->fd.post_busreset = sbp_post_busreset;
2060 sbp->fd.post_explore = sbp_post_explore;
2061
2062 if (fc->status != -1) {
2063 s = splfw();
2064 sbp_post_busreset((void *)sbp);
2065 sbp_post_explore((void *)sbp);
2066 splx(s);
2067 }
2068 SBP_LOCK(sbp);
2069 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
2070 SBP_UNLOCK(sbp);
2071
2072 return (0);
2073fail:
2074 SBP_UNLOCK(sbp);
2075 cam_sim_free(sbp->sim, /*free_devq*/TRUE);
2076 return (ENXIO);
2077}
2078
2079static int
2080sbp_logout_all(struct sbp_softc *sbp)
2081{
2082 struct sbp_target *target;
2083 struct sbp_dev *sdev;
2084 int i, j;
2085
2086SBP_DEBUG(0)
2087 printf("sbp_logout_all\n");
2088END_DEBUG
2089 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
2090 target = &sbp->targets[i];
2091 if (target->luns == NULL)
2092 continue;
2093 for (j = 0; j < target->num_lun; j++) {
2094 sdev = target->luns[j];
2095 if (sdev == NULL)
2096 continue;
2097 callout_stop(&sdev->login_callout);
2098 if (sdev->status >= SBP_DEV_TOATTACH &&
2099 sdev->status <= SBP_DEV_ATTACHED)
2100 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
2101 }
2102 }
2103
2104 return 0;
2105}
2106
2107static int
2108sbp_shutdown(device_t dev)
2109{
2110 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2111
2112 sbp_logout_all(sbp);
2113 return (0);
2114}
2115
2116static void
2117sbp_free_sdev(struct sbp_dev *sdev)
2118{
2119 int i;
2120
2121 if (sdev == NULL)
2122 return;
2123 for (i = 0; i < SBP_QUEUE_LEN; i++)
2124 bus_dmamap_destroy(sdev->target->sbp->dmat,
2125 sdev->ocb[i].dmamap);
2126 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
2127 free(sdev, M_SBP);
2128 sdev = NULL;
2129}
2130
2131static void
2132sbp_free_target(struct sbp_target *target)
2133{
2134 struct sbp_softc *sbp;
2135 struct fw_xfer *xfer, *next;
2136 int i;
2137
2138 if (target->luns == NULL)
2139 return;
2140 callout_stop(&target->mgm_ocb_timeout);
2141 sbp = target->sbp;
2142 for (i = 0; i < target->num_lun; i++)
2143 sbp_free_sdev(target->luns[i]);
2144
2145 for (xfer = STAILQ_FIRST(&target->xferlist);
2146 xfer != NULL; xfer = next) {
2147 next = STAILQ_NEXT(xfer, link);
2148 fw_xfer_free_buf(xfer);
2149 }
2150 STAILQ_INIT(&target->xferlist);
2151 free(target->luns, M_SBP);
2152 target->num_lun = 0;
2153 target->luns = NULL;
2154 target->fwdev = NULL;
2155}
2156
2157static int
2158sbp_detach(device_t dev)
2159{
2160 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2161 struct firewire_comm *fc = sbp->fd.fc;
2162 int i;
2163
2164SBP_DEBUG(0)
2165 printf("sbp_detach\n");
2166END_DEBUG
2167
2168 for (i = 0; i < SBP_NUM_TARGETS; i ++)
2169 sbp_cam_detach_target(&sbp->targets[i]);
2170
2171 SBP_LOCK(sbp);
2172 xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2173 xpt_free_path(sbp->path);
2174 xpt_bus_deregister(cam_sim_path(sbp->sim));
2175 cam_sim_free(sbp->sim, /*free_devq*/ TRUE);
2176 SBP_UNLOCK(sbp);
2177
2178 sbp_logout_all(sbp);
2179
2180 /* XXX wait for logout completion */
2181 pause("sbpdtc", hz/2);
2182
2183 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2184 sbp_free_target(&sbp->targets[i]);
2185
2186 fw_bindremove(fc, &sbp->fwb);
2187 fw_xferlist_remove(&sbp->fwb.xferlist);
2188
2189 bus_dma_tag_destroy(sbp->dmat);
2190 mtx_destroy(&sbp->mtx);
2191
2192 return (0);
2193}
2194
2195static void
2196sbp_cam_detach_sdev(struct sbp_dev *sdev)
2197{
2198 if (sdev == NULL)
2199 return;
2200 if (sdev->status == SBP_DEV_DEAD)
2201 return;
2202 if (sdev->status == SBP_DEV_RESET)
2203 return;
2204 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2205 if (sdev->path) {
2206 SBP_LOCK(sdev->target->sbp);
2207 xpt_release_devq(sdev->path,
2208 sdev->freeze, TRUE);
2209 sdev->freeze = 0;
2210 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2211 xpt_free_path(sdev->path);
2212 sdev->path = NULL;
2213 SBP_UNLOCK(sdev->target->sbp);
2214 }
2215}
2216
2217static void
2218sbp_cam_detach_target(struct sbp_target *target)
2219{
2220 int i;
2221
2222 if (target->luns != NULL) {
2223SBP_DEBUG(0)
2224 printf("sbp_detach_target %d\n", target->target_id);
2225END_DEBUG
2226 callout_stop(&target->scan_callout);
2227 for (i = 0; i < target->num_lun; i++)
2228 sbp_cam_detach_sdev(target->luns[i]);
2229 }
2230}
2231
2232static void
2233sbp_target_reset(struct sbp_dev *sdev, int method)
2234{
2235 int i;
2236 struct sbp_target *target = sdev->target;
2237 struct sbp_dev *tsdev;
2238
2239 for (i = 0; i < target->num_lun; i++) {
2240 tsdev = target->luns[i];
2241 if (tsdev == NULL)
2242 continue;
2243 if (tsdev->status == SBP_DEV_DEAD)
2244 continue;
2245 if (tsdev->status == SBP_DEV_RESET)
2246 continue;
2247 SBP_LOCK(target->sbp);
2248 xpt_freeze_devq(tsdev->path, 1);
2249 tsdev->freeze ++;
2250 SBP_UNLOCK(target->sbp);
2251 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2252 if (method == 2)
2253 tsdev->status = SBP_DEV_LOGIN;
2254 }
2255 switch(method) {
2256 case 1:
2257 printf("target reset\n");
2258 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2259 break;
2260 case 2:
2261 printf("reset start\n");
2262 sbp_reset_start(sdev);
2263 break;
2264 }
2265
2266}
2267
2268static void
2269sbp_mgm_timeout(void *arg)
2270{
2271 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2272 struct sbp_dev *sdev = ocb->sdev;
2273 struct sbp_target *target = sdev->target;
2274
2275 device_printf(sdev->target->sbp->fd.dev,
2276 "%s:%s request timeout(mgm orb:0x%08x)\n",
2277 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2278 target->mgm_ocb_cur = NULL;
2279 sbp_free_ocb(sdev, ocb);
2280#if 0
2281 /* XXX */
2282 printf("run next request\n");
2283 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2284#endif
2285 device_printf(sdev->target->sbp->fd.dev,
2286 "%s:%s reset start\n",
2287 __func__, sdev->bustgtlun);
2288 sbp_reset_start(sdev);
2289}
2290
2291static void
2292sbp_timeout(void *arg)
2293{
2294 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2295 struct sbp_dev *sdev = ocb->sdev;
2296
2297 device_printf(sdev->target->sbp->fd.dev,
2298 "%s:%s request timeout(cmd orb:0x%08x) ... ",
2299 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2300
2301 sdev->timeout ++;
2302 switch(sdev->timeout) {
2303 case 1:
2304 printf("agent reset\n");
2305 SBP_LOCK(sdev->target->sbp);
2306 xpt_freeze_devq(sdev->path, 1);
2307 sdev->freeze ++;
2308 SBP_UNLOCK(sdev->target->sbp);
2309 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2310 sbp_agent_reset(sdev);
2311 break;
2312 case 2:
2313 case 3:
2314 sbp_target_reset(sdev, sdev->timeout - 1);
2315 break;
2316#if 0
2317 default:
2318 /* XXX give up */
2319 sbp_cam_detach_target(target);
2320 if (target->luns != NULL)
2321 free(target->luns, M_SBP);
2322 target->num_lun = 0;
2323 target->luns = NULL;
2324 target->fwdev = NULL;
2325#endif
2326 }
2327}
2328
2329static void
2330sbp_action1(struct cam_sim *sim, union ccb *ccb)
2331{
2332
2333 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2334 struct sbp_target *target = NULL;
2335 struct sbp_dev *sdev = NULL;
2336
2337 /* target:lun -> sdev mapping */
2338 if (sbp != NULL
2339 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2340 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2341 target = &sbp->targets[ccb->ccb_h.target_id];
2342 if (target->fwdev != NULL
2343 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2344 && ccb->ccb_h.target_lun < target->num_lun) {
2345 sdev = target->luns[ccb->ccb_h.target_lun];
2346 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2347 sdev->status != SBP_DEV_PROBE)
2348 sdev = NULL;
2349 }
2350 }
2351
2352SBP_DEBUG(1)
2353 if (sdev == NULL)
2354 printf("invalid target %d lun %d\n",
2355 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2356END_DEBUG
2357
2358 switch (ccb->ccb_h.func_code) {
2359 case XPT_SCSI_IO:
2360 case XPT_RESET_DEV:
2361 case XPT_GET_TRAN_SETTINGS:
2362 case XPT_SET_TRAN_SETTINGS:
2363 case XPT_CALC_GEOMETRY:
2364 if (sdev == NULL) {
2365SBP_DEBUG(1)
2366 printf("%s:%d:%d:func_code 0x%04x: "
2367 "Invalid target (target needed)\n",
2368 device_get_nameunit(sbp->fd.dev),
2369 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2370 ccb->ccb_h.func_code);
2371END_DEBUG
2372
2373 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2374 xpt_done(ccb);
2375 return;
2376 }
2377 break;
2378 case XPT_PATH_INQ:
2379 case XPT_NOOP:
2380 /* The opcodes sometimes aimed at a target (sc is valid),
2381 * sometimes aimed at the SIM (sc is invalid and target is
2382 * CAM_TARGET_WILDCARD)
2383 */
2384 if (sbp == NULL &&
2385 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2386SBP_DEBUG(0)
2387 printf("%s:%d:%d func_code 0x%04x: "
2388 "Invalid target (no wildcard)\n",
2389 device_get_nameunit(sbp->fd.dev),
2390 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2391 ccb->ccb_h.func_code);
2392END_DEBUG
2393 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2394 xpt_done(ccb);
2395 return;
2396 }
2397 break;
2398 default:
2399 /* XXX Hm, we should check the input parameters */
2400 break;
2401 }
2402
2403 switch (ccb->ccb_h.func_code) {
2404 case XPT_SCSI_IO:
2405 {
2406 struct ccb_scsiio *csio;
2407 struct sbp_ocb *ocb;
2408 int speed;
2409 void *cdb;
2410
2411 csio = &ccb->csio;
2412 mtx_assert(sim->mtx, MA_OWNED);
2413
2414SBP_DEBUG(2)
2415 printf("%s:%d:%d XPT_SCSI_IO: "
2416 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2417 ", flags: 0x%02x, "
2418 "%db cmd/%db data/%db sense\n",
2419 device_get_nameunit(sbp->fd.dev),
2420 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2421 csio->cdb_io.cdb_bytes[0],
2422 csio->cdb_io.cdb_bytes[1],
2423 csio->cdb_io.cdb_bytes[2],
2424 csio->cdb_io.cdb_bytes[3],
2425 csio->cdb_io.cdb_bytes[4],
2426 csio->cdb_io.cdb_bytes[5],
2427 csio->cdb_io.cdb_bytes[6],
2428 csio->cdb_io.cdb_bytes[7],
2429 csio->cdb_io.cdb_bytes[8],
2430 csio->cdb_io.cdb_bytes[9],
2431 ccb->ccb_h.flags & CAM_DIR_MASK,
2432 csio->cdb_len, csio->dxfer_len,
2433 csio->sense_len);
2434END_DEBUG
2435 if(sdev == NULL){
2436 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2437 xpt_done(ccb);
2438 return;
2439 }
2440#if 0
2441 /* if we are in probe stage, pass only probe commands */
2442 if (sdev->status == SBP_DEV_PROBE) {
2443 char *name;
2444 name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2445 printf("probe stage, periph name: %s\n", name);
2446 if (strcmp(name, "probe") != 0) {
2447 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2448 xpt_done(ccb);
2449 return;
2450 }
2451 }
2452#endif
2453 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2454 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2455 if (sdev->freeze == 0) {
2456 SBP_LOCK(sdev->target->sbp);
2457 xpt_freeze_devq(sdev->path, 1);
2458 sdev->freeze ++;
2459 SBP_UNLOCK(sdev->target->sbp);
2460 }
2461 xpt_done(ccb);
2462 return;
2463 }
2464
2465 ocb->flags = OCB_ACT_CMD;
2466 ocb->sdev = sdev;
2467 ocb->ccb = ccb;
2468 ccb->ccb_h.ccb_sdev_ptr = sdev;
2469 ocb->orb[0] = htonl(1 << 31);
2470 ocb->orb[1] = 0;
2471 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2472 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2473 speed = min(target->fwdev->speed, max_speed);
2474 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2475 | ORB_CMD_MAXP(speed + 7));
2476 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2477 ocb->orb[4] |= htonl(ORB_CMD_IN);
2478 }
2479
2480 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2481 printf("sbp: CAM_SCATTER_VALID\n");
2482 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2483 printf("sbp: CAM_DATA_PHYS\n");
2484
2485 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2486 cdb = (void *)csio->cdb_io.cdb_ptr;
2487 else
2488 cdb = (void *)&csio->cdb_io.cdb_bytes;
2489 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2490/*
2491printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2492printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2493*/
2494 if (ccb->csio.dxfer_len > 0) {
2495 int s, error;
2496
2497 s = splsoftvm();
2498 error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2499 /*dma map*/ocb->dmamap,
2500 ccb->csio.data_ptr,
2501 ccb->csio.dxfer_len,
2502 sbp_execute_ocb,
2503 ocb,
2504 /*flags*/0);
2505 splx(s);
2506 if (error)
2507 printf("sbp: bus_dmamap_load error %d\n", error);
2508 } else
2509 sbp_execute_ocb(ocb, NULL, 0, 0);
2510 break;
2511 }
2512 case XPT_CALC_GEOMETRY:
2513 {
2514 struct ccb_calc_geometry *ccg;
2515#if defined(__DragonFly__) || __FreeBSD_version < 501100
2516 uint32_t size_mb;
2517 uint32_t secs_per_cylinder;
2518 int extended = 1;
2519#endif
2520
2521 ccg = &ccb->ccg;
2522 if (ccg->block_size == 0) {
2523 printf("sbp_action1: block_size is 0.\n");
2524 ccb->ccb_h.status = CAM_REQ_INVALID;
2525 xpt_done(ccb);
2526 break;
2527 }
2528SBP_DEBUG(1)
2529 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
2530#if defined(__DragonFly__) || __FreeBSD_version < 500000
2531 "Volume size = %d\n",
2532#else
2533 "Volume size = %jd\n",
2534#endif
2535 device_get_nameunit(sbp->fd.dev),
2536 cam_sim_path(sbp->sim),
2537 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2538#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2539 (uintmax_t)
2540#endif
2541 ccg->volume_size);
2542END_DEBUG
2543
2544#if defined(__DragonFly__) || __FreeBSD_version < 501100
2545 size_mb = ccg->volume_size
2546 / ((1024L * 1024L) / ccg->block_size);
2547
2548 if (size_mb > 1024 && extended) {
2549 ccg->heads = 255;
2550 ccg->secs_per_track = 63;
2551 } else {
2552 ccg->heads = 64;
2553 ccg->secs_per_track = 32;
2554 }
2555 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2556 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2557 ccb->ccb_h.status = CAM_REQ_CMP;
2558#else
2559 cam_calc_geometry(ccg, /*extended*/1);
2560#endif
2561 xpt_done(ccb);
2562 break;
2563 }
2564 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
2565 {
2566
2567SBP_DEBUG(1)
2568 printf("%s:%d:XPT_RESET_BUS: \n",
2569 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2570END_DEBUG
2571
2572 ccb->ccb_h.status = CAM_REQ_INVALID;
2573 xpt_done(ccb);
2574 break;
2575 }
2576 case XPT_PATH_INQ: /* Path routing inquiry */
2577 {
2578 struct ccb_pathinq *cpi = &ccb->cpi;
2579
2580SBP_DEBUG(1)
2581 printf("%s:%d:%d XPT_PATH_INQ:.\n",
2582 device_get_nameunit(sbp->fd.dev),
2583 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2584END_DEBUG
2585 cpi->version_num = 1; /* XXX??? */
2586 cpi->hba_inquiry = PI_TAG_ABLE;
2587 cpi->target_sprt = 0;
2588 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2589 cpi->hba_eng_cnt = 0;
2590 cpi->max_target = SBP_NUM_TARGETS - 1;
2591 cpi->max_lun = SBP_NUM_LUNS - 1;
2592 cpi->initiator_id = SBP_INITIATOR;
2593 cpi->bus_id = sim->bus_id;
2594 cpi->base_transfer_speed = 400 * 1000 / 8;
2595 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2596 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2597 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2598 cpi->unit_number = sim->unit_number;
2599 cpi->transport = XPORT_SPI; /* XX should have a FireWire */
2600 cpi->transport_version = 2;
2601 cpi->protocol = PROTO_SCSI;
2602 cpi->protocol_version = SCSI_REV_2;
2603
2604 cpi->ccb_h.status = CAM_REQ_CMP;
2605 xpt_done(ccb);
2606 break;
2607 }
2608 case XPT_GET_TRAN_SETTINGS:
2609 {
2610 struct ccb_trans_settings *cts = &ccb->cts;
2611 struct ccb_trans_settings_scsi *scsi =
2612 &cts->proto_specific.scsi;
2613 struct ccb_trans_settings_spi *spi =
2614 &cts->xport_specific.spi;
2615
2616 cts->protocol = PROTO_SCSI;
2617 cts->protocol_version = SCSI_REV_2;
2618 cts->transport = XPORT_SPI; /* should have a FireWire */
2619 cts->transport_version = 2;
2620 spi->valid = CTS_SPI_VALID_DISC;
2621 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2622 scsi->valid = CTS_SCSI_VALID_TQ;
2623 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2624SBP_DEBUG(1)
2625 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2626 device_get_nameunit(sbp->fd.dev),
2627 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2628END_DEBUG
2629 cts->ccb_h.status = CAM_REQ_CMP;
2630 xpt_done(ccb);
2631 break;
2632 }
2633 case XPT_ABORT:
2634 ccb->ccb_h.status = CAM_UA_ABORT;
2635 xpt_done(ccb);
2636 break;
2637 case XPT_SET_TRAN_SETTINGS:
2638 /* XXX */
2639 default:
2640 ccb->ccb_h.status = CAM_REQ_INVALID;
2641 xpt_done(ccb);
2642 break;
2643 }
2644 return;
2645}
2646
2647static void
2648sbp_action(struct cam_sim *sim, union ccb *ccb)
2649{
2650 int s;
2651
2652 s = splfw();
2653 sbp_action1(sim, ccb);
2654 splx(s);
2655}
2656
2657static void
2658sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
2659{
2660 int i;
2661 struct sbp_ocb *ocb;
2662 struct sbp_ocb *prev;
2663 bus_dma_segment_t *s;
2664
2665 if (error)
2666 printf("sbp_execute_ocb: error=%d\n", error);
2667
2668 ocb = (struct sbp_ocb *)arg;
2669
2670SBP_DEBUG(2)
2671 printf("sbp_execute_ocb: seg %d", seg);
2672 for (i = 0; i < seg; i++)
2673#if defined(__DragonFly__) || __FreeBSD_version < 500000
2674 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2675#else
2676 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2677 (uintmax_t)segments[i].ds_len);
2678#endif
2679 printf("\n");
2680END_DEBUG
2681
2682 if (seg == 1) {
2683 /* direct pointer */
2684 s = &segments[0];
2685 if (s->ds_len > SBP_SEG_MAX)
2686 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2687 ocb->orb[3] = htonl(s->ds_addr);
2688 ocb->orb[4] |= htonl(s->ds_len);
2689 } else if(seg > 1) {
2690 /* page table */
2691 for (i = 0; i < seg; i++) {
2692 s = &segments[i];
2693SBP_DEBUG(0)
2694 /* XXX LSI Logic "< 16 byte" bug might be hit */
2695 if (s->ds_len < 16)
2696 printf("sbp_execute_ocb: warning, "
2697#if defined(__DragonFly__) || __FreeBSD_version < 500000
2698 "segment length(%d) is less than 16."
2699#else
2700 "segment length(%zd) is less than 16."
2701#endif
2702 "(seg=%d/%d)\n", (size_t)s->ds_len, i+1, seg);
2703END_DEBUG
2704 if (s->ds_len > SBP_SEG_MAX)
2705 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2706 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2707 ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2708 }
2709 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2710 }
2711
2712 if (seg > 0)
2713 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2714 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2715 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2716 prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2717 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2718 if (use_doorbell) {
2719 if (prev == NULL) {
2720 if (ocb->sdev->last_ocb != NULL)
2721 sbp_doorbell(ocb->sdev);
2722 else
2723 sbp_orb_pointer(ocb->sdev, ocb);
2724 }
2725 } else {
2726 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2727 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2728 sbp_orb_pointer(ocb->sdev, ocb);
2729 }
2730 }
2731}
2732
2733static void
2734sbp_poll(struct cam_sim *sim)
2735{
2736 struct sbp_softc *sbp;
2737 struct firewire_comm *fc;
2738
2739 sbp = (struct sbp_softc *)sim->softc;
2740 fc = sbp->fd.fc;
2741
2742 fc->poll(fc, 0, -1);
2743
2744 return;
2745}
2746
2747static struct sbp_ocb *
2748sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2749{
2750 struct sbp_ocb *ocb;
2751 struct sbp_ocb *next;
2752 int s = splfw(), order = 0;
2753 int flags;
2754
2755SBP_DEBUG(1)
2756 device_printf(sdev->target->sbp->fd.dev,
2757#if defined(__DragonFly__) || __FreeBSD_version < 500000
2758 "%s:%s 0x%08lx src %d\n",
2759#else
2760 "%s:%s 0x%08x src %d\n",
2761#endif
2762 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src);
2763END_DEBUG
2764 SBP_LOCK(sdev->target->sbp);
2765 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2766 next = STAILQ_NEXT(ocb, ocb);
2767 flags = ocb->flags;
2768 if (OCB_MATCH(ocb, sbp_status)) {
2769 /* found */
2770 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2771 if (ocb->ccb != NULL)
2772 untimeout(sbp_timeout, (caddr_t)ocb,
2773 ocb->ccb->ccb_h.timeout_ch);
2774 if (ntohl(ocb->orb[4]) & 0xffff) {
2775 bus_dmamap_sync(sdev->target->sbp->dmat,
2776 ocb->dmamap,
2777 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2778 BUS_DMASYNC_POSTREAD :
2779 BUS_DMASYNC_POSTWRITE);
2780 bus_dmamap_unload(sdev->target->sbp->dmat,
2781 ocb->dmamap);
2782 }
2783 if (!use_doorbell) {
2784 if (sbp_status->src == SRC_NO_NEXT) {
2785 if (next != NULL)
2786 sbp_orb_pointer(sdev, next);
2787 else if (order > 0) {
2788 /*
2789 * Unordered execution
2790 * We need to send pointer for
2791 * next ORB
2792 */
2793 sdev->flags |= ORB_LINK_DEAD;
2794 }
2795 }
2796 } else {
2797 /*
2798 * XXX this is not correct for unordered
2799 * execution.
2800 */
2801 if (sdev->last_ocb != NULL) {
2802 SBP_UNLOCK(sdev->target->sbp);
2803 sbp_free_ocb(sdev, sdev->last_ocb);
2804 SBP_LOCK(sdev->target->sbp);
2805 }
2806 sdev->last_ocb = ocb;
2807 if (next != NULL &&
2808 sbp_status->src == SRC_NO_NEXT)
2809 sbp_doorbell(sdev);
2810 }
2811 break;
2812 } else
2813 order ++;
2814 }
2815 SBP_UNLOCK(sdev->target->sbp);
2816 splx(s);
2817SBP_DEBUG(0)
2818 if (ocb && order > 0) {
2819 device_printf(sdev->target->sbp->fd.dev,
2820 "%s:%s unordered execution order:%d\n",
2821 __func__, sdev->bustgtlun, order);
2822 }
2823END_DEBUG
2824 return (ocb);
2825}
2826
2827static struct sbp_ocb *
2828sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2829{
2830 int s = splfw();
2831 struct sbp_ocb *prev, *prev2;
2832
2833 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2834SBP_DEBUG(1)
2835 device_printf(sdev->target->sbp->fd.dev,
2836#if defined(__DragonFly__) || __FreeBSD_version < 500000
2837 "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2838#else
2839 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2840#endif
2841END_DEBUG
2842 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2843 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2844
2845 if (ocb->ccb != NULL)
2846 ocb->ccb->ccb_h.timeout_ch = timeout(sbp_timeout, (caddr_t)ocb,
2847 (ocb->ccb->ccb_h.timeout * hz) / 1000);
2848
2849 if (use_doorbell && prev == NULL)
2850 prev2 = sdev->last_ocb;
2851
2852 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) {
2853SBP_DEBUG(1)
2854#if defined(__DragonFly__) || __FreeBSD_version < 500000
2855 printf("linking chain 0x%x -> 0x%x\n",
2856 prev2->bus_addr, ocb->bus_addr);
2857#else
2858 printf("linking chain 0x%jx -> 0x%jx\n",
2859 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
2860#endif
2861END_DEBUG
2862 /*
2863 * Suppress compiler optimization so that orb[1] must be written first.
2864 * XXX We may need an explicit memory barrier for other architectures
2865 * other than i386/amd64.
2866 */
2867 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr);
2868 *(volatile uint32_t *)&prev2->orb[0] = 0;
2869 }
2870 splx(s);
2871
2872 return prev;
2873}
2874
2875static struct sbp_ocb *
2876sbp_get_ocb(struct sbp_dev *sdev)
2877{
2878 struct sbp_ocb *ocb;
2879 int s = splfw();
2880
2881 mtx_assert(&sdev->target->sbp->mtx, MA_OWNED);
2882 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2883 if (ocb == NULL) {
2884 sdev->flags |= ORB_SHORTAGE;
2885 printf("ocb shortage!!!\n");
2886 splx(s);
2887 return NULL;
2888 }
2889 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2890 splx(s);
2891 ocb->ccb = NULL;
2892 return (ocb);
2893}
2894
2895static void
2896sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2897{
2898 ocb->flags = 0;
2899 ocb->ccb = NULL;
2900
2901 SBP_LOCK(sdev->target->sbp);
2902 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2903 if ((sdev->flags & ORB_SHORTAGE) != 0) {
2904 int count;
2905
2906 sdev->flags &= ~ORB_SHORTAGE;
2907 count = sdev->freeze;
2908 sdev->freeze = 0;
2909 xpt_release_devq(sdev->path, count, TRUE);
2910 }
2911 SBP_UNLOCK(sdev->target->sbp);
2912}
2913
2914static void
2915sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2916{
2917 struct sbp_dev *sdev;
2918
2919 sdev = ocb->sdev;
2920SBP_DEBUG(0)
2921 device_printf(sdev->target->sbp->fd.dev,
2922#if defined(__DragonFly__) || __FreeBSD_version < 500000
2923 "%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2924#else
2925 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2926#endif
2927END_DEBUG
2928SBP_DEBUG(1)
2929 if (ocb->ccb != NULL)
2930 sbp_print_scsi_cmd(ocb);
2931END_DEBUG
2932 if (ntohl(ocb->orb[4]) & 0xffff) {
2933 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2934 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2935 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2936 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2937 }
2938 if (ocb->ccb != NULL) {
2939 untimeout(sbp_timeout, (caddr_t)ocb,
2940 ocb->ccb->ccb_h.timeout_ch);
2941 ocb->ccb->ccb_h.status = status;
2942 SBP_LOCK(sdev->target->sbp);
2943 xpt_done(ocb->ccb);
2944 SBP_UNLOCK(sdev->target->sbp);
2945 }
2946 sbp_free_ocb(sdev, ocb);
2947}
2948
2949static void
2950sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2951{
2952 int s;
2953 struct sbp_ocb *ocb, *next;
2954 STAILQ_HEAD(, sbp_ocb) temp;
2955
2956 s = splfw();
2957
2958 STAILQ_INIT(&temp);
2959 SBP_LOCK(sdev->target->sbp);
2960 STAILQ_CONCAT(&temp, &sdev->ocbs);
2961 STAILQ_INIT(&sdev->ocbs);
2962 SBP_UNLOCK(sdev->target->sbp);
2963
2964 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2965 next = STAILQ_NEXT(ocb, ocb);
2966 sbp_abort_ocb(ocb, status);
2967 }
2968 if (sdev->last_ocb != NULL) {
2969 sbp_free_ocb(sdev, sdev->last_ocb);
2970 sdev->last_ocb = NULL;
2971 }
2972
2973 splx(s);
2974}
2975
2976static devclass_t sbp_devclass;
2977
2978static device_method_t sbp_methods[] = {
2979 /* device interface */
2980 DEVMETHOD(device_identify, sbp_identify),
2981 DEVMETHOD(device_probe, sbp_probe),
2982 DEVMETHOD(device_attach, sbp_attach),
2983 DEVMETHOD(device_detach, sbp_detach),
2984 DEVMETHOD(device_shutdown, sbp_shutdown),
2985
2986 { 0, 0 }
2987};
2988
2989static driver_t sbp_driver = {
2990 "sbp",
2991 sbp_methods,
2992 sizeof(struct sbp_softc),
2993};
2994#ifdef __DragonFly__
2995DECLARE_DUMMY_MODULE(sbp);
2996#endif
2997DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2998MODULE_VERSION(sbp, 1);
2999MODULE_DEPEND(sbp, firewire, 1, 1, 1);
3000MODULE_DEPEND(sbp, cam, 1, 1, 1);
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