32
33#include <sys/param.h>
34#include <sys/bus.h>
35#include <sys/systm.h>
36#include <sys/types.h>
37#include <sys/malloc.h>
38#include <sys/kernel.h>
39#include <sys/time.h>
40#include <sys/conf.h>
41#include <sys/fcntl.h>
42#include <sys/md5.h>
43#include <sys/interrupt.h>
44#include <sys/sbuf.h>
45
46#include <sys/lock.h>
47#include <sys/mutex.h>
48#include <sys/sysctl.h>
49
50#include <cam/cam.h>
51#include <cam/cam_ccb.h>
52#include <cam/cam_queue.h>
53#include <cam/cam_periph.h>
54#include <cam/cam_sim.h>
55#include <cam/cam_xpt.h>
56#include <cam/cam_xpt_sim.h>
57#include <cam/cam_xpt_periph.h>
58#include <cam/cam_xpt_internal.h>
59#include <cam/cam_debug.h>
60
61#include <cam/scsi/scsi_all.h>
62#include <cam/scsi/scsi_message.h>
63#include <cam/scsi/scsi_pass.h>
64#include <machine/stdarg.h> /* for xpt_print below */
65#include "opt_cam.h"
66
67struct scsi_quirk_entry {
68 struct scsi_inquiry_pattern inq_pat;
69 u_int8_t quirks;
70#define CAM_QUIRK_NOLUNS 0x01
71#define CAM_QUIRK_NOVPDS 0x02
72#define CAM_QUIRK_HILUNS 0x04
73#define CAM_QUIRK_NOHILUNS 0x08
74#define CAM_QUIRK_NORPTLUNS 0x10
75 u_int mintags;
76 u_int maxtags;
77};
78#define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk))
79
80static int cam_srch_hi = 0;
81TUNABLE_INT("kern.cam.cam_srch_hi", &cam_srch_hi);
82static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS);
83SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT|CTLFLAG_RW, 0, 0,
84 sysctl_cam_search_luns, "I",
85 "allow search above LUN 7 for SCSI3 and greater devices");
86
87#define CAM_SCSI2_MAXLUN 8
88#define CAM_CAN_GET_SIMPLE_LUN(x, i) \
89 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
90 RPL_LUNDATA_ATYP_PERIPH) || \
91 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
92 RPL_LUNDATA_ATYP_FLAT))
93#define CAM_GET_SIMPLE_LUN(lp, i, lval) \
94 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
95 RPL_LUNDATA_ATYP_PERIPH) { \
96 (lval) = (lp)->luns[(i)].lundata[1]; \
97 } else { \
98 (lval) = (lp)->luns[(i)].lundata[0]; \
99 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \
100 (lval) <<= 8; \
101 (lval) |= (lp)->luns[(i)].lundata[1]; \
102 }
103/*
104 * If we're not quirked to search <= the first 8 luns
105 * and we are either quirked to search above lun 8,
106 * or we're > SCSI-2 and we've enabled hilun searching,
107 * or we're > SCSI-2 and the last lun was a success,
108 * we can look for luns above lun 8.
109 */
110#define CAN_SRCH_HI_SPARSE(dv) \
111 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \
112 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \
113 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi)))
114
115#define CAN_SRCH_HI_DENSE(dv) \
116 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \
117 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \
118 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2)))
119
120static periph_init_t probe_periph_init;
121
122static struct periph_driver probe_driver =
123{
124 probe_periph_init, "probe",
125 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0,
126 CAM_PERIPH_DRV_EARLY
127};
128
129PERIPHDRIVER_DECLARE(probe, probe_driver);
130
131typedef enum {
132 PROBE_TUR,
133 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */
134 PROBE_FULL_INQUIRY,
135 PROBE_REPORT_LUNS,
136 PROBE_MODE_SENSE,
137 PROBE_SUPPORTED_VPD_LIST,
138 PROBE_DEVICE_ID,
139 PROBE_SERIAL_NUM,
140 PROBE_TUR_FOR_NEGOTIATION,
141 PROBE_INQUIRY_BASIC_DV1,
142 PROBE_INQUIRY_BASIC_DV2,
143 PROBE_DV_EXIT,
144 PROBE_DONE,
145 PROBE_INVALID
146} probe_action;
147
148static char *probe_action_text[] = {
149 "PROBE_TUR",
150 "PROBE_INQUIRY",
151 "PROBE_FULL_INQUIRY",
152 "PROBE_REPORT_LUNS",
153 "PROBE_MODE_SENSE",
154 "PROBE_SUPPORTED_VPD_LIST",
155 "PROBE_DEVICE_ID",
156 "PROBE_SERIAL_NUM",
157 "PROBE_TUR_FOR_NEGOTIATION",
158 "PROBE_INQUIRY_BASIC_DV1",
159 "PROBE_INQUIRY_BASIC_DV2",
160 "PROBE_DV_EXIT",
161 "PROBE_DONE",
162 "PROBE_INVALID"
163};
164
165#define PROBE_SET_ACTION(softc, newaction) \
166do { \
167 char **text; \
168 text = probe_action_text; \
169 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \
170 ("Probe %s to %s\n", text[(softc)->action], \
171 text[(newaction)])); \
172 (softc)->action = (newaction); \
173} while(0)
174
175typedef enum {
176 PROBE_INQUIRY_CKSUM = 0x01,
177 PROBE_SERIAL_CKSUM = 0x02,
178 PROBE_NO_ANNOUNCE = 0x04
179} probe_flags;
180
181typedef struct {
182 TAILQ_HEAD(, ccb_hdr) request_ccbs;
183 probe_action action;
184 union ccb saved_ccb;
185 probe_flags flags;
186 MD5_CTX context;
187 u_int8_t digest[16];
188 struct cam_periph *periph;
189} probe_softc;
190
191static const char quantum[] = "QUANTUM";
192static const char sony[] = "SONY";
193static const char west_digital[] = "WDIGTL";
194static const char samsung[] = "SAMSUNG";
195static const char seagate[] = "SEAGATE";
196static const char microp[] = "MICROP";
197
198static struct scsi_quirk_entry scsi_quirk_table[] =
199{
200 {
201 /* Reports QUEUE FULL for temporary resource shortages */
202 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" },
203 /*quirks*/0, /*mintags*/24, /*maxtags*/32
204 },
205 {
206 /* Reports QUEUE FULL for temporary resource shortages */
207 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" },
208 /*quirks*/0, /*mintags*/24, /*maxtags*/32
209 },
210 {
211 /* Reports QUEUE FULL for temporary resource shortages */
212 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" },
213 /*quirks*/0, /*mintags*/24, /*maxtags*/32
214 },
215 {
216 /* Broken tagged queuing drive */
217 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" },
218 /*quirks*/0, /*mintags*/0, /*maxtags*/0
219 },
220 {
221 /* Broken tagged queuing drive */
222 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" },
223 /*quirks*/0, /*mintags*/0, /*maxtags*/0
224 },
225 {
226 /* Broken tagged queuing drive */
227 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" },
228 /*quirks*/0, /*mintags*/0, /*maxtags*/0
229 },
230 {
231 /*
232 * Unfortunately, the Quantum Atlas III has the same
233 * problem as the Atlas II drives above.
234 * Reported by: "Johan Granlund" <johan@granlund.nu>
235 *
236 * For future reference, the drive with the problem was:
237 * QUANTUM QM39100TD-SW N1B0
238 *
239 * It's possible that Quantum will fix the problem in later
240 * firmware revisions. If that happens, the quirk entry
241 * will need to be made specific to the firmware revisions
242 * with the problem.
243 *
244 */
245 /* Reports QUEUE FULL for temporary resource shortages */
246 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" },
247 /*quirks*/0, /*mintags*/24, /*maxtags*/32
248 },
249 {
250 /*
251 * 18 Gig Atlas III, same problem as the 9G version.
252 * Reported by: Andre Albsmeier
253 * <andre.albsmeier@mchp.siemens.de>
254 *
255 * For future reference, the drive with the problem was:
256 * QUANTUM QM318000TD-S N491
257 */
258 /* Reports QUEUE FULL for temporary resource shortages */
259 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" },
260 /*quirks*/0, /*mintags*/24, /*maxtags*/32
261 },
262 {
263 /*
264 * Broken tagged queuing drive
265 * Reported by: Bret Ford <bford@uop.cs.uop.edu>
266 * and: Martin Renters <martin@tdc.on.ca>
267 */
268 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" },
269 /*quirks*/0, /*mintags*/0, /*maxtags*/0
270 },
271 /*
272 * The Seagate Medalist Pro drives have very poor write
273 * performance with anything more than 2 tags.
274 *
275 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl>
276 * Drive: <SEAGATE ST36530N 1444>
277 *
278 * Reported by: Jeremy Lea <reg@shale.csir.co.za>
279 * Drive: <SEAGATE ST34520W 1281>
280 *
281 * No one has actually reported that the 9G version
282 * (ST39140*) of the Medalist Pro has the same problem, but
283 * we're assuming that it does because the 4G and 6.5G
284 * versions of the drive are broken.
285 */
286 {
287 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"},
288 /*quirks*/0, /*mintags*/2, /*maxtags*/2
289 },
290 {
291 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"},
292 /*quirks*/0, /*mintags*/2, /*maxtags*/2
293 },
294 {
295 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"},
296 /*quirks*/0, /*mintags*/2, /*maxtags*/2
297 },
298 {
299 /*
300 * Experiences command timeouts under load with a
301 * tag count higher than 55.
302 */
303 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"},
304 /*quirks*/0, /*mintags*/2, /*maxtags*/55
305 },
306 {
307 /*
308 * Slow when tagged queueing is enabled. Write performance
309 * steadily drops off with more and more concurrent
310 * transactions. Best sequential write performance with
311 * tagged queueing turned off and write caching turned on.
312 *
313 * PR: kern/10398
314 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp>
315 * Drive: DCAS-34330 w/ "S65A" firmware.
316 *
317 * The drive with the problem had the "S65A" firmware
318 * revision, and has also been reported (by Stephen J.
319 * Roznowski <sjr@home.net>) for a drive with the "S61A"
320 * firmware revision.
321 *
322 * Although no one has reported problems with the 2 gig
323 * version of the DCAS drive, the assumption is that it
324 * has the same problems as the 4 gig version. Therefore
325 * this quirk entries disables tagged queueing for all
326 * DCAS drives.
327 */
328 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" },
329 /*quirks*/0, /*mintags*/0, /*maxtags*/0
330 },
331 {
332 /* Broken tagged queuing drive */
333 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" },
334 /*quirks*/0, /*mintags*/0, /*maxtags*/0
335 },
336 {
337 /* Broken tagged queuing drive */
338 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" },
339 /*quirks*/0, /*mintags*/0, /*maxtags*/0
340 },
341 {
342 /* This does not support other than LUN 0 */
343 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" },
344 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
345 },
346 {
347 /*
348 * Broken tagged queuing drive.
349 * Submitted by:
350 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp>
351 * in PR kern/9535
352 */
353 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" },
354 /*quirks*/0, /*mintags*/0, /*maxtags*/0
355 },
356 {
357 /*
358 * Slow when tagged queueing is enabled. (1.5MB/sec versus
359 * 8MB/sec.)
360 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
361 * Best performance with these drives is achieved with
362 * tagged queueing turned off, and write caching turned on.
363 */
364 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" },
365 /*quirks*/0, /*mintags*/0, /*maxtags*/0
366 },
367 {
368 /*
369 * Slow when tagged queueing is enabled. (1.5MB/sec versus
370 * 8MB/sec.)
371 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
372 * Best performance with these drives is achieved with
373 * tagged queueing turned off, and write caching turned on.
374 */
375 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" },
376 /*quirks*/0, /*mintags*/0, /*maxtags*/0
377 },
378 {
379 /*
380 * Doesn't handle queue full condition correctly,
381 * so we need to limit maxtags to what the device
382 * can handle instead of determining this automatically.
383 */
384 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" },
385 /*quirks*/0, /*mintags*/2, /*maxtags*/32
386 },
387 {
388 /* Really only one LUN */
389 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" },
390 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
391 },
392 {
393 /* I can't believe we need a quirk for DPT volumes. */
394 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" },
395 CAM_QUIRK_NOLUNS,
396 /*mintags*/0, /*maxtags*/255
397 },
398 {
399 /*
400 * Many Sony CDROM drives don't like multi-LUN probing.
401 */
402 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" },
403 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
404 },
405 {
406 /*
407 * This drive doesn't like multiple LUN probing.
408 * Submitted by: Parag Patel <parag@cgt.com>
409 */
410 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" },
411 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
412 },
413 {
414 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" },
415 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
416 },
417 {
418 /*
419 * The 8200 doesn't like multi-lun probing, and probably
420 * don't like serial number requests either.
421 */
422 {
423 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE",
424 "EXB-8200*", "*"
425 },
426 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
427 },
428 {
429 /*
430 * Let's try the same as above, but for a drive that says
431 * it's an IPL-6860 but is actually an EXB 8200.
432 */
433 {
434 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE",
435 "IPL-6860*", "*"
436 },
437 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
438 },
439 {
440 /*
441 * These Hitachi drives don't like multi-lun probing.
442 * The PR submitter has a DK319H, but says that the Linux
443 * kernel has a similar work-around for the DK312 and DK314,
444 * so all DK31* drives are quirked here.
445 * PR: misc/18793
446 * Submitted by: Paul Haddad <paul@pth.com>
447 */
448 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" },
449 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
450 },
451 {
452 /*
453 * The Hitachi CJ series with J8A8 firmware apparantly has
454 * problems with tagged commands.
455 * PR: 23536
456 * Reported by: amagai@nue.org
457 */
458 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" },
459 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
460 },
461 {
462 /*
463 * These are the large storage arrays.
464 * Submitted by: William Carrel <william.carrel@infospace.com>
465 */
466 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" },
467 CAM_QUIRK_HILUNS, 2, 1024
468 },
469 {
470 /*
471 * This old revision of the TDC3600 is also SCSI-1, and
472 * hangs upon serial number probing.
473 */
474 {
475 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
476 " TDC 3600", "U07:"
477 },
478 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0
479 },
480 {
481 /*
482 * Would repond to all LUNs if asked for.
483 */
484 {
485 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER",
486 "CP150", "*"
487 },
488 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
489 },
490 {
491 /*
492 * Would repond to all LUNs if asked for.
493 */
494 {
495 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
496 "96X2*", "*"
497 },
498 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
499 },
500 {
501 /* Submitted by: Matthew Dodd <winter@jurai.net> */
502 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" },
503 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
504 },
505 {
506 /* Submitted by: Matthew Dodd <winter@jurai.net> */
507 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" },
508 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
509 },
510 {
511 /* TeraSolutions special settings for TRC-22 RAID */
512 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" },
513 /*quirks*/0, /*mintags*/55, /*maxtags*/255
514 },
515 {
516 /* Veritas Storage Appliance */
517 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" },
518 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024
519 },
520 {
521 /*
522 * Would respond to all LUNs. Device type and removable
523 * flag are jumper-selectable.
524 */
525 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix",
526 "Tahiti 1", "*"
527 },
528 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
529 },
530 {
531 /* EasyRAID E5A aka. areca ARC-6010 */
532 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" },
533 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255
534 },
535 {
536 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" },
537 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
538 },
539 {
540 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" },
541 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255
542 },
543 {
544 /* Default tagged queuing parameters for all devices */
545 {
546 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED,
547 /*vendor*/"*", /*product*/"*", /*revision*/"*"
548 },
549 /*quirks*/0, /*mintags*/2, /*maxtags*/255
550 },
551};
552
553static const int scsi_quirk_table_size =
554 sizeof(scsi_quirk_table) / sizeof(*scsi_quirk_table);
555
556static cam_status proberegister(struct cam_periph *periph,
557 void *arg);
558static void probeschedule(struct cam_periph *probe_periph);
559static int device_has_vpd(struct cam_ed *device, uint8_t page_id);
560static void probestart(struct cam_periph *periph, union ccb *start_ccb);
561static void proberequestdefaultnegotiation(struct cam_periph *periph);
562static int proberequestbackoff(struct cam_periph *periph,
563 struct cam_ed *device);
564static void probedone(struct cam_periph *periph, union ccb *done_ccb);
565static int probe_strange_rpl_data(struct scsi_report_luns_data *rp,
566 uint32_t maxlun);
567static void probe_purge_old(struct cam_path *path,
568 struct scsi_report_luns_data *new);
569static void probecleanup(struct cam_periph *periph);
570static void scsi_find_quirk(struct cam_ed *device);
571static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb);
572static void scsi_scan_lun(struct cam_periph *periph,
573 struct cam_path *path, cam_flags flags,
574 union ccb *ccb);
575static void xptscandone(struct cam_periph *periph, union ccb *done_ccb);
576static struct cam_ed *
577 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target,
578 lun_id_t lun_id);
579static void scsi_devise_transport(struct cam_path *path);
580static void scsi_set_transfer_settings(struct ccb_trans_settings *cts,
581 struct cam_ed *device,
582 int async_update);
583static void scsi_toggle_tags(struct cam_path *path);
584static void scsi_dev_async(u_int32_t async_code,
585 struct cam_eb *bus,
586 struct cam_et *target,
587 struct cam_ed *device,
588 void *async_arg);
589static void scsi_action(union ccb *start_ccb);
590static void scsi_announce_periph(struct cam_periph *periph);
591
592static struct xpt_xport scsi_xport = {
593 .alloc_device = scsi_alloc_device,
594 .action = scsi_action,
595 .async = scsi_dev_async,
596 .announce = scsi_announce_periph,
597};
598
599struct xpt_xport *
600scsi_get_xport(void)
601{
602 return (&scsi_xport);
603}
604
605static void
606probe_periph_init()
607{
608}
609
610static cam_status
611proberegister(struct cam_periph *periph, void *arg)
612{
613 union ccb *request_ccb; /* CCB representing the probe request */
614 cam_status status;
615 probe_softc *softc;
616
617 request_ccb = (union ccb *)arg;
618 if (request_ccb == NULL) {
619 printf("proberegister: no probe CCB, "
620 "can't register device\n");
621 return(CAM_REQ_CMP_ERR);
622 }
623
624 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT);
625
626 if (softc == NULL) {
627 printf("proberegister: Unable to probe new device. "
628 "Unable to allocate softc\n");
629 return(CAM_REQ_CMP_ERR);
630 }
631 TAILQ_INIT(&softc->request_ccbs);
632 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h,
633 periph_links.tqe);
634 softc->flags = 0;
635 periph->softc = softc;
636 softc->periph = periph;
637 softc->action = PROBE_INVALID;
638 status = cam_periph_acquire(periph);
639 if (status != CAM_REQ_CMP) {
640 return (status);
641 }
642 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n"));
643
644 /*
645 * Ensure we've waited at least a bus settle
646 * delay before attempting to probe the device.
647 * For HBAs that don't do bus resets, this won't make a difference.
648 */
649 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset,
650 scsi_delay);
651 probeschedule(periph);
652 return(CAM_REQ_CMP);
653}
654
655static void
656probeschedule(struct cam_periph *periph)
657{
658 struct ccb_pathinq cpi;
659 union ccb *ccb;
660 probe_softc *softc;
661
662 softc = (probe_softc *)periph->softc;
663 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
664
665 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE);
666 cpi.ccb_h.func_code = XPT_PATH_INQ;
667 xpt_action((union ccb *)&cpi);
668
669 /*
670 * If a device has gone away and another device, or the same one,
671 * is back in the same place, it should have a unit attention
672 * condition pending. It will not report the unit attention in
673 * response to an inquiry, which may leave invalid transfer
674 * negotiations in effect. The TUR will reveal the unit attention
675 * condition. Only send the TUR for lun 0, since some devices
676 * will get confused by commands other than inquiry to non-existent
677 * luns. If you think a device has gone away start your scan from
678 * lun 0. This will insure that any bogus transfer settings are
679 * invalidated.
680 *
681 * If we haven't seen the device before and the controller supports
682 * some kind of transfer negotiation, negotiate with the first
683 * sent command if no bus reset was performed at startup. This
684 * ensures that the device is not confused by transfer negotiation
685 * settings left over by loader or BIOS action.
686 */
687 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
688 && (ccb->ccb_h.target_lun == 0)) {
689 PROBE_SET_ACTION(softc, PROBE_TUR);
690 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0
691 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) {
692 proberequestdefaultnegotiation(periph);
693 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
694 } else {
695 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
696 }
697
698 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE)
699 softc->flags |= PROBE_NO_ANNOUNCE;
700 else
701 softc->flags &= ~PROBE_NO_ANNOUNCE;
702
703 xpt_schedule(periph, CAM_PRIORITY_XPT);
704}
705
706static int
707device_has_vpd(struct cam_ed *device, uint8_t page_id)
708{
709 int i, num_pages;
710 struct scsi_vpd_supported_pages *vpds;
711
712 vpds = (struct scsi_vpd_supported_pages *)device->supported_vpds;
713 num_pages = device->supported_vpds_len - SVPD_SUPPORTED_PAGES_HDR_LEN;
714 for (i = 0;i < num_pages;i++)
715 if (vpds->page_list[i] == page_id)
716 return 1;
717
718 return 0;
719}
720
721static void
722probestart(struct cam_periph *periph, union ccb *start_ccb)
723{
724 /* Probe the device that our peripheral driver points to */
725 struct ccb_scsiio *csio;
726 probe_softc *softc;
727
728 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n"));
729
730 softc = (probe_softc *)periph->softc;
731 csio = &start_ccb->csio;
732again:
733
734 switch (softc->action) {
735 case PROBE_TUR:
736 case PROBE_TUR_FOR_NEGOTIATION:
737 case PROBE_DV_EXIT:
738 {
739 scsi_test_unit_ready(csio,
740 /*retries*/4,
741 probedone,
742 MSG_SIMPLE_Q_TAG,
743 SSD_FULL_SIZE,
744 /*timeout*/60000);
745 break;
746 }
747 case PROBE_INQUIRY:
748 case PROBE_FULL_INQUIRY:
749 case PROBE_INQUIRY_BASIC_DV1:
750 case PROBE_INQUIRY_BASIC_DV2:
751 {
752 u_int inquiry_len;
753 struct scsi_inquiry_data *inq_buf;
754
755 inq_buf = &periph->path->device->inq_data;
756
757 /*
758 * If the device is currently configured, we calculate an
759 * MD5 checksum of the inquiry data, and if the serial number
760 * length is greater than 0, add the serial number data
761 * into the checksum as well. Once the inquiry and the
762 * serial number check finish, we attempt to figure out
763 * whether we still have the same device.
764 */
765 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
766
767 MD5Init(&softc->context);
768 MD5Update(&softc->context, (unsigned char *)inq_buf,
769 sizeof(struct scsi_inquiry_data));
770 softc->flags |= PROBE_INQUIRY_CKSUM;
771 if (periph->path->device->serial_num_len > 0) {
772 MD5Update(&softc->context,
773 periph->path->device->serial_num,
774 periph->path->device->serial_num_len);
775 softc->flags |= PROBE_SERIAL_CKSUM;
776 }
777 MD5Final(softc->digest, &softc->context);
778 }
779
780 if (softc->action == PROBE_INQUIRY)
781 inquiry_len = SHORT_INQUIRY_LENGTH;
782 else
783 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf);
784
785 /*
786 * Some parallel SCSI devices fail to send an
787 * ignore wide residue message when dealing with
788 * odd length inquiry requests. Round up to be
789 * safe.
790 */
791 inquiry_len = roundup2(inquiry_len, 2);
792
793 if (softc->action == PROBE_INQUIRY_BASIC_DV1
794 || softc->action == PROBE_INQUIRY_BASIC_DV2) {
795 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT);
796 }
797 if (inq_buf == NULL) {
798 xpt_print(periph->path, "malloc failure- skipping Basic"
799 "Domain Validation\n");
800 PROBE_SET_ACTION(softc, PROBE_DV_EXIT);
801 scsi_test_unit_ready(csio,
802 /*retries*/4,
803 probedone,
804 MSG_SIMPLE_Q_TAG,
805 SSD_FULL_SIZE,
806 /*timeout*/60000);
807 break;
808 }
809 scsi_inquiry(csio,
810 /*retries*/4,
811 probedone,
812 MSG_SIMPLE_Q_TAG,
813 (u_int8_t *)inq_buf,
814 inquiry_len,
815 /*evpd*/FALSE,
816 /*page_code*/0,
817 SSD_MIN_SIZE,
818 /*timeout*/60 * 1000);
819 break;
820 }
821 case PROBE_REPORT_LUNS:
822 {
823 void *rp;
824
825 rp = malloc(periph->path->target->rpl_size,
826 M_CAMXPT, M_NOWAIT | M_ZERO);
827 if (rp == NULL) {
828 struct scsi_inquiry_data *inq_buf;
829 inq_buf = &periph->path->device->inq_data;
830 xpt_print(periph->path,
831 "Unable to alloc report luns storage\n");
832 if (INQ_DATA_TQ_ENABLED(inq_buf))
833 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE);
834 else
835 PROBE_SET_ACTION(softc,
836 PROBE_SUPPORTED_VPD_LIST);
837 goto again;
838 }
839 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG,
840 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size,
841 SSD_FULL_SIZE, 60000); break;
842 break;
843 }
844 case PROBE_MODE_SENSE:
845 {
846 void *mode_buf;
847 int mode_buf_len;
848
849 mode_buf_len = sizeof(struct scsi_mode_header_6)
850 + sizeof(struct scsi_mode_blk_desc)
851 + sizeof(struct scsi_control_page);
852 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT);
853 if (mode_buf != NULL) {
854 scsi_mode_sense(csio,
855 /*retries*/4,
856 probedone,
857 MSG_SIMPLE_Q_TAG,
858 /*dbd*/FALSE,
859 SMS_PAGE_CTRL_CURRENT,
860 SMS_CONTROL_MODE_PAGE,
861 mode_buf,
862 mode_buf_len,
863 SSD_FULL_SIZE,
864 /*timeout*/60000);
865 break;
866 }
867 xpt_print(periph->path, "Unable to mode sense control page - "
868 "malloc failure\n");
869 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST);
870 }
871 /* FALLTHROUGH */
872 case PROBE_SUPPORTED_VPD_LIST:
873 {
874 struct scsi_vpd_supported_page_list *vpd_list;
875 struct cam_ed *device;
876
877 vpd_list = NULL;
878 device = periph->path->device;
879
880 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0)
881 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT,
882 M_NOWAIT | M_ZERO);
883
884 if (vpd_list != NULL) {
885 scsi_inquiry(csio,
886 /*retries*/4,
887 probedone,
888 MSG_SIMPLE_Q_TAG,
889 (u_int8_t *)vpd_list,
890 sizeof(*vpd_list),
891 /*evpd*/TRUE,
892 SVPD_SUPPORTED_PAGE_LIST,
893 SSD_MIN_SIZE,
894 /*timeout*/60 * 1000);
895 break;
896 }
897 /*
898 * We'll have to do without, let our probedone
899 * routine finish up for us.
900 */
901 start_ccb->csio.data_ptr = NULL;
902 probedone(periph, start_ccb);
903 return;
904 }
905 case PROBE_DEVICE_ID:
906 {
907 struct scsi_vpd_device_id *devid;
908 struct cam_ed *device;
909
910 devid = NULL;
911 device = periph->path->device;
912 if (device_has_vpd(device, SVPD_DEVICE_ID))
913 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT,
914 M_NOWAIT | M_ZERO);
915
916 if (devid != NULL) {
917 scsi_inquiry(csio,
918 /*retries*/4,
919 probedone,
920 MSG_SIMPLE_Q_TAG,
921 (uint8_t *)devid,
922 SVPD_DEVICE_ID_MAX_SIZE,
923 /*evpd*/TRUE,
924 SVPD_DEVICE_ID,
925 SSD_MIN_SIZE,
926 /*timeout*/60 * 1000);
927 break;
928 }
929 /*
930 * We'll have to do without, let our probedone
931 * routine finish up for us.
932 */
933 start_ccb->csio.data_ptr = NULL;
934 probedone(periph, start_ccb);
935 return;
936 }
937 case PROBE_SERIAL_NUM:
938 {
939 struct scsi_vpd_unit_serial_number *serial_buf;
940 struct cam_ed* device;
941
942 serial_buf = NULL;
943 device = periph->path->device;
944 if (device->serial_num != NULL) {
945 free(device->serial_num, M_CAMXPT);
946 device->serial_num = NULL;
947 device->serial_num_len = 0;
948 }
949
950 if (device_has_vpd(device, SVPD_UNIT_SERIAL_NUMBER))
951 serial_buf = (struct scsi_vpd_unit_serial_number *)
952 malloc(sizeof(*serial_buf), M_CAMXPT,
953 M_NOWAIT|M_ZERO);
954
955 if (serial_buf != NULL) {
956 scsi_inquiry(csio,
957 /*retries*/4,
958 probedone,
959 MSG_SIMPLE_Q_TAG,
960 (u_int8_t *)serial_buf,
961 sizeof(*serial_buf),
962 /*evpd*/TRUE,
963 SVPD_UNIT_SERIAL_NUMBER,
964 SSD_MIN_SIZE,
965 /*timeout*/60 * 1000);
966 break;
967 }
968 /*
969 * We'll have to do without, let our probedone
970 * routine finish up for us.
971 */
972 start_ccb->csio.data_ptr = NULL;
973 probedone(periph, start_ccb);
974 return;
975 }
976 default:
977 panic("probestart: invalid action state 0x%x\n", softc->action);
978 }
979 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
980 xpt_action(start_ccb);
981}
982
983static void
984proberequestdefaultnegotiation(struct cam_periph *periph)
985{
986 struct ccb_trans_settings cts;
987
988 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
989 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
990 cts.type = CTS_TYPE_USER_SETTINGS;
991 xpt_action((union ccb *)&cts);
992 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
993 return;
994 }
995 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
996 cts.type = CTS_TYPE_CURRENT_SETTINGS;
997 xpt_action((union ccb *)&cts);
998}
999
1000/*
1001 * Backoff Negotiation Code- only pertinent for SPI devices.
1002 */
1003static int
1004proberequestbackoff(struct cam_periph *periph, struct cam_ed *device)
1005{
1006 struct ccb_trans_settings cts;
1007 struct ccb_trans_settings_spi *spi;
1008
1009 memset(&cts, 0, sizeof (cts));
1010 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1011 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1012 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1013 xpt_action((union ccb *)&cts);
1014 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1015 if (bootverbose) {
1016 xpt_print(periph->path,
1017 "failed to get current device settings\n");
1018 }
1019 return (0);
1020 }
1021 if (cts.transport != XPORT_SPI) {
1022 if (bootverbose) {
1023 xpt_print(periph->path, "not SPI transport\n");
1024 }
1025 return (0);
1026 }
1027 spi = &cts.xport_specific.spi;
1028
1029 /*
1030 * We cannot renegotiate sync rate if we don't have one.
1031 */
1032 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
1033 if (bootverbose) {
1034 xpt_print(periph->path, "no sync rate known\n");
1035 }
1036 return (0);
1037 }
1038
1039 /*
1040 * We'll assert that we don't have to touch PPR options- the
1041 * SIM will see what we do with period and offset and adjust
1042 * the PPR options as appropriate.
1043 */
1044
1045 /*
1046 * A sync rate with unknown or zero offset is nonsensical.
1047 * A sync period of zero means Async.
1048 */
1049 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0
1050 || spi->sync_offset == 0 || spi->sync_period == 0) {
1051 if (bootverbose) {
1052 xpt_print(periph->path, "no sync rate available\n");
1053 }
1054 return (0);
1055 }
1056
1057 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) {
1058 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1059 ("hit async: giving up on DV\n"));
1060 return (0);
1061 }
1062
1063
1064 /*
1065 * Jump sync_period up by one, but stop at 5MHz and fall back to Async.
1066 * We don't try to remember 'last' settings to see if the SIM actually
1067 * gets into the speed we want to set. We check on the SIM telling
1068 * us that a requested speed is bad, but otherwise don't try and
1069 * check the speed due to the asynchronous and handshake nature
1070 * of speed setting.
1071 */
1072 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET;
1073 for (;;) {
1074 spi->sync_period++;
1075 if (spi->sync_period >= 0xf) {
1076 spi->sync_period = 0;
1077 spi->sync_offset = 0;
1078 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1079 ("setting to async for DV\n"));
1080 /*
1081 * Once we hit async, we don't want to try
1082 * any more settings.
1083 */
1084 device->flags |= CAM_DEV_DV_HIT_BOTTOM;
1085 } else if (bootverbose) {
1086 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1087 ("DV: period 0x%x\n", spi->sync_period));
1088 printf("setting period to 0x%x\n", spi->sync_period);
1089 }
1090 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1091 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1092 xpt_action((union ccb *)&cts);
1093 if ((cts.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1094 break;
1095 }
1096 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1097 ("DV: failed to set period 0x%x\n", spi->sync_period));
1098 if (spi->sync_period == 0) {
1099 return (0);
1100 }
1101 }
1102 return (1);
1103}
1104
1105#define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP)
1106
1107static void
1108probedone(struct cam_periph *periph, union ccb *done_ccb)
1109{
1110 probe_softc *softc;
1111 struct cam_path *path;
1112 u_int32_t priority;
1113
1114 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n"));
1115
1116 softc = (probe_softc *)periph->softc;
1117 path = done_ccb->ccb_h.path;
1118 priority = done_ccb->ccb_h.pinfo.priority;
1119
1120 switch (softc->action) {
1121 case PROBE_TUR:
1122 {
1123 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1124
1125 if (cam_periph_error(done_ccb, 0,
1126 SF_NO_PRINT, NULL) == ERESTART) {
1127out:
1128 /* Drop freeze taken due to CAM_DEV_QFREEZE */
1129 cam_release_devq(path, 0, 0, 0, FALSE);
1130 return;
1131 }
1132 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1133 /* Don't wedge the queue */
1134 xpt_release_devq(done_ccb->ccb_h.path,
1135 /*count*/1,
1136 /*run_queue*/TRUE);
1137 }
1138 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
1139 xpt_release_ccb(done_ccb);
1140 xpt_schedule(periph, priority);
1141 goto out;
1142 }
1143 case PROBE_INQUIRY:
1144 case PROBE_FULL_INQUIRY:
1145 {
1146 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1147 struct scsi_inquiry_data *inq_buf;
1148 u_int8_t periph_qual;
1149
1150 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID;
1151 inq_buf = &path->device->inq_data;
1152
1153 periph_qual = SID_QUAL(inq_buf);
1154
1155 if (periph_qual == SID_QUAL_LU_CONNECTED) {
1156 u_int8_t len;
1157
1158 /*
1159 * We conservatively request only
1160 * SHORT_INQUIRY_LEN bytes of inquiry
1161 * information during our first try
1162 * at sending an INQUIRY. If the device
1163 * has more information to give,
1164 * perform a second request specifying
1165 * the amount of information the device
1166 * is willing to give.
1167 */
1168 len = inq_buf->additional_length
1169 + offsetof(struct scsi_inquiry_data,
1170 additional_length) + 1;
1171 if (softc->action == PROBE_INQUIRY
1172 && len > SHORT_INQUIRY_LENGTH) {
1173 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY);
1174 xpt_release_ccb(done_ccb);
1175 xpt_schedule(periph, priority);
1176 goto out;
1177 }
1178
1179 scsi_find_quirk(path->device);
1180
1181 scsi_devise_transport(path);
1182
1183 if (path->device->lun_id == 0 &&
1184 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 &&
1185 (SCSI_QUIRK(path->device)->quirks &
1186 CAM_QUIRK_NORPTLUNS) == 0) {
1187 PROBE_SET_ACTION(softc,
1188 PROBE_REPORT_LUNS);
1189 /*
1190 * Start with room for *one* lun.
1191 */
1192 periph->path->target->rpl_size = 16;
1193 } else if (INQ_DATA_TQ_ENABLED(inq_buf))
1194 PROBE_SET_ACTION(softc,
1195 PROBE_MODE_SENSE);
1196 else
1197 PROBE_SET_ACTION(softc,
1198 PROBE_SUPPORTED_VPD_LIST);
1199
1200 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1201 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1202 xpt_acquire_device(path->device);
1203 }
1204 xpt_release_ccb(done_ccb);
1205 xpt_schedule(periph, priority);
1206 goto out;
1207 } else if (path->device->lun_id == 0 &&
1208 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 &&
1209 (SCSI_QUIRK(path->device)->quirks &
1210 CAM_QUIRK_NORPTLUNS) == 0) {
1211 if (path->device->flags &
1212 CAM_DEV_UNCONFIGURED) {
1213 path->device->flags &=
1214 ~CAM_DEV_UNCONFIGURED;
1215 xpt_acquire_device(path->device);
1216 }
1217 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS);
1218 periph->path->target->rpl_size = 16;
1219 xpt_release_ccb(done_ccb);
1220 xpt_schedule(periph, priority);
1221 goto out;
1222 }
1223 } else if (cam_periph_error(done_ccb, 0,
1224 done_ccb->ccb_h.target_lun > 0
1225 ? SF_RETRY_UA|SF_QUIET_IR
1226 : SF_RETRY_UA,
1227 &softc->saved_ccb) == ERESTART) {
1228 goto out;
1229 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1230 /* Don't wedge the queue */
1231 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1232 /*run_queue*/TRUE);
1233 }
1234 /*
1235 * If we get to this point, we got an error status back
1236 * from the inquiry and the error status doesn't require
1237 * automatically retrying the command. Therefore, the
1238 * inquiry failed. If we had inquiry information before
1239 * for this device, but this latest inquiry command failed,
1240 * the device has probably gone away. If this device isn't
1241 * already marked unconfigured, notify the peripheral
1242 * drivers that this device is no more.
1243 */
1244 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
1245 /* Send the async notification. */
1246 xpt_async(AC_LOST_DEVICE, path, NULL);
1247 PROBE_SET_ACTION(softc, PROBE_INVALID);
1248
1249 xpt_release_ccb(done_ccb);
1250 break;
1251 }
1252 case PROBE_REPORT_LUNS:
1253 {
1254 struct ccb_scsiio *csio;
1255 struct scsi_report_luns_data *lp;
1256 u_int nlun, maxlun;
1257
1258 csio = &done_ccb->csio;
1259
1260 lp = (struct scsi_report_luns_data *)csio->data_ptr;
1261 nlun = scsi_4btoul(lp->length) / 8;
1262 maxlun = (csio->dxfer_len / 8) - 1;
1263
1264 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1265 if (cam_periph_error(done_ccb, 0,
1266 done_ccb->ccb_h.target_lun > 0 ?
1267 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA,
1268 &softc->saved_ccb) == ERESTART) {
1269 goto out;
1270 }
1271 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1272 xpt_release_devq(done_ccb->ccb_h.path, 1,
1273 TRUE);
1274 }
1275 free(lp, M_CAMXPT);
1276 lp = NULL;
1277 } else if (nlun > maxlun) {
1278 /*
1279 * Reallocate and retry to cover all luns
1280 */
1281 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1282 ("Probe: reallocating REPORT_LUNS for %u luns\n",
1283 nlun));
1284 free(lp, M_CAMXPT);
1285 path->target->rpl_size = (nlun << 3) + 8;
1286 xpt_release_ccb(done_ccb);
1287 xpt_schedule(periph, priority);
1288 goto out;
1289 } else if (nlun == 0) {
1290 /*
1291 * If there don't appear to be any luns, bail.
1292 */
1293 free(lp, M_CAMXPT);
1294 lp = NULL;
1295 } else if (probe_strange_rpl_data(lp, maxlun)) {
1296 /*
1297 * If we can't understand the lun format
1298 * of any entry, bail.
1299 */
1300 free(lp, M_CAMXPT);
1301 lp = NULL;
1302 } else {
1303 lun_id_t lun;
1304 int idx;
1305
1306 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1307 ("Probe: %u lun(s) reported\n", nlun));
1308
1309 CAM_GET_SIMPLE_LUN(lp, 0, lun);
1310 /*
1311 * If the first lun is not lun 0, then either there
1312 * is no lun 0 in the list, or the list is unsorted.
1313 */
1314 if (lun != 0) {
1315 for (idx = 0; idx < nlun; idx++) {
1316 CAM_GET_SIMPLE_LUN(lp, idx, lun);
1317 if (lun == 0) {
1318 break;
1319 }
1320 }
1321 if (idx != nlun) {
1322 uint8_t tlun[8];
1323 memcpy(tlun,
1324 lp->luns[0].lundata, 8);
1325 memcpy(lp->luns[0].lundata,
1326 lp->luns[idx].lundata, 8);
1327 memcpy(lp->luns[idx].lundata,
1328 tlun, 8);
1329 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1330 ("lun 0 in position %u\n", idx));
1331 } else {
1332 /*
1333 * There is no lun 0 in our list. Destroy
1334 * the validity of the inquiry data so we
1335 * bail here and now.
1336 */
1337 path->device->flags &=
1338 ~CAM_DEV_INQUIRY_DATA_VALID;
1339 }
1340 }
1341 /*
1342 * If we have an old lun list, We can either
1343 * retest luns that appear to have been dropped,
1344 * or just nuke them. We'll opt for the latter.
1345 * This function will also install the new list
1346 * in the target structure.
1347 */
1348 probe_purge_old(path, lp);
1349 lp = NULL;
1350 }
1351 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) {
1352 struct scsi_inquiry_data *inq_buf;
1353 inq_buf = &path->device->inq_data;
1354 if (INQ_DATA_TQ_ENABLED(inq_buf))
1355 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE);
1356 else
1357 PROBE_SET_ACTION(softc,
1358 PROBE_SUPPORTED_VPD_LIST);
1359 xpt_release_ccb(done_ccb);
1360 xpt_schedule(periph, priority);
1361 goto out;
1362 }
1363 if (lp) {
1364 free(lp, M_CAMXPT);
1365 }
1366 break;
1367 }
1368 case PROBE_MODE_SENSE:
1369 {
1370 struct ccb_scsiio *csio;
1371 struct scsi_mode_header_6 *mode_hdr;
1372
1373 csio = &done_ccb->csio;
1374 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr;
1375 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1376 struct scsi_control_page *page;
1377 u_int8_t *offset;
1378
1379 offset = ((u_int8_t *)&mode_hdr[1])
1380 + mode_hdr->blk_desc_len;
1381 page = (struct scsi_control_page *)offset;
1382 path->device->queue_flags = page->queue_flags;
1383 } else if (cam_periph_error(done_ccb, 0,
1384 SF_RETRY_UA|SF_NO_PRINT,
1385 &softc->saved_ccb) == ERESTART) {
1386 goto out;
1387 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1388 /* Don't wedge the queue */
1389 xpt_release_devq(done_ccb->ccb_h.path,
1390 /*count*/1, /*run_queue*/TRUE);
1391 }
1392 xpt_release_ccb(done_ccb);
1393 free(mode_hdr, M_CAMXPT);
1394 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST);
1395 xpt_schedule(periph, priority);
1396 goto out;
1397 }
1398 case PROBE_SUPPORTED_VPD_LIST:
1399 {
1400 struct ccb_scsiio *csio;
1401 struct scsi_vpd_supported_page_list *page_list;
1402
1403 csio = &done_ccb->csio;
1404 page_list =
1405 (struct scsi_vpd_supported_page_list *)csio->data_ptr;
1406
1407 if (path->device->supported_vpds != NULL) {
1408 free(path->device->supported_vpds, M_CAMXPT);
1409 path->device->supported_vpds = NULL;
1410 path->device->supported_vpds_len = 0;
1411 }
1412
1413 if (page_list == NULL) {
1414 /*
1415 * Don't process the command as it was never sent
1416 */
1417 } else if (CCB_COMPLETED_OK(csio->ccb_h)) {
1418 /* Got vpd list */
1419 path->device->supported_vpds_len = page_list->length +
1420 SVPD_SUPPORTED_PAGES_HDR_LEN;
1421 path->device->supported_vpds = (uint8_t *)page_list;
1422 xpt_release_ccb(done_ccb);
1423 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID);
1424 xpt_schedule(periph, priority);
1425 goto out;
1426 } else if (cam_periph_error(done_ccb, 0,
1427 SF_RETRY_UA|SF_NO_PRINT,
1428 &softc->saved_ccb) == ERESTART) {
1429 goto out;
1430 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1431 /* Don't wedge the queue */
1432 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1433 /*run_queue*/TRUE);
1434 }
1435
1436 if (page_list)
1437 free(page_list, M_CAMXPT);
1438 /* No VPDs available, skip to device check. */
1439 csio->data_ptr = NULL;
1440 goto probe_device_check;
1441 }
1442 case PROBE_DEVICE_ID:
1443 {
1444 struct scsi_vpd_device_id *devid;
1445 struct ccb_scsiio *csio;
1446 uint32_t length = 0;
1447
1448 csio = &done_ccb->csio;
1449 devid = (struct scsi_vpd_device_id *)csio->data_ptr;
1450
1451 /* Clean up from previous instance of this device */
1452 if (path->device->device_id != NULL) {
1453 path->device->device_id_len = 0;
1454 free(path->device->device_id, M_CAMXPT);
1455 path->device->device_id = NULL;
1456 }
1457
1458 if (devid == NULL) {
1459 /* Don't process the command as it was never sent */
1460 } else if (CCB_COMPLETED_OK(csio->ccb_h)) {
1461 length = scsi_2btoul(devid->length);
1462 if (length != 0) {
1463 /*
1464 * NB: device_id_len is actual response
1465 * size, not buffer size.
1466 */
1467 path->device->device_id_len = length +
1468 SVPD_DEVICE_ID_HDR_LEN;
1469 path->device->device_id = (uint8_t *)devid;
1470 }
1471 } else if (cam_periph_error(done_ccb, 0,
1472 SF_RETRY_UA,
1473 &softc->saved_ccb) == ERESTART) {
1474 goto out;
1475 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1476 /* Don't wedge the queue */
1477 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1478 /*run_queue*/TRUE);
1479 }
1480
1481 /* Free the device id space if we don't use it */
1482 if (devid && length == 0)
1483 free(devid, M_CAMXPT);
1484 xpt_release_ccb(done_ccb);
1485 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM);
1486 xpt_schedule(periph, priority);
1487 goto out;
1488 }
1489
1490probe_device_check:
1491 case PROBE_SERIAL_NUM:
1492 {
1493 struct ccb_scsiio *csio;
1494 struct scsi_vpd_unit_serial_number *serial_buf;
1495 u_int32_t priority;
1496 int changed;
1497 int have_serialnum;
1498
1499 changed = 1;
1500 have_serialnum = 0;
1501 csio = &done_ccb->csio;
1502 priority = done_ccb->ccb_h.pinfo.priority;
1503 serial_buf =
1504 (struct scsi_vpd_unit_serial_number *)csio->data_ptr;
1505
1506 if (serial_buf == NULL) {
1507 /*
1508 * Don't process the command as it was never sent
1509 */
1510 } else if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP
1511 && (serial_buf->length > 0)) {
1512
1513 have_serialnum = 1;
1514 path->device->serial_num =
1515 (u_int8_t *)malloc((serial_buf->length + 1),
1516 M_CAMXPT, M_NOWAIT);
1517 if (path->device->serial_num != NULL) {
1518 memcpy(path->device->serial_num,
1519 serial_buf->serial_num,
1520 serial_buf->length);
1521 path->device->serial_num_len =
1522 serial_buf->length;
1523 path->device->serial_num[serial_buf->length]
1524 = '\0';
1525 }
1526 } else if (cam_periph_error(done_ccb, 0,
1527 SF_RETRY_UA|SF_NO_PRINT,
1528 &softc->saved_ccb) == ERESTART) {
1529 goto out;
1530 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1531 /* Don't wedge the queue */
1532 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1533 /*run_queue*/TRUE);
1534 }
1535
1536 /*
1537 * Let's see if we have seen this device before.
1538 */
1539 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) {
1540 MD5_CTX context;
1541 u_int8_t digest[16];
1542
1543 MD5Init(&context);
1544
1545 MD5Update(&context,
1546 (unsigned char *)&path->device->inq_data,
1547 sizeof(struct scsi_inquiry_data));
1548
1549 if (have_serialnum)
1550 MD5Update(&context, serial_buf->serial_num,
1551 serial_buf->length);
1552
1553 MD5Final(digest, &context);
1554 if (bcmp(softc->digest, digest, 16) == 0)
1555 changed = 0;
1556
1557 /*
1558 * XXX Do we need to do a TUR in order to ensure
1559 * that the device really hasn't changed???
1560 */
1561 if ((changed != 0)
1562 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0))
1563 xpt_async(AC_LOST_DEVICE, path, NULL);
1564 }
1565 if (serial_buf != NULL)
1566 free(serial_buf, M_CAMXPT);
1567
1568 if (changed != 0) {
1569 /*
1570 * Now that we have all the necessary
1571 * information to safely perform transfer
1572 * negotiations... Controllers don't perform
1573 * any negotiation or tagged queuing until
1574 * after the first XPT_SET_TRAN_SETTINGS ccb is
1575 * received. So, on a new device, just retrieve
1576 * the user settings, and set them as the current
1577 * settings to set the device up.
1578 */
1579 proberequestdefaultnegotiation(periph);
1580 xpt_release_ccb(done_ccb);
1581
1582 /*
1583 * Perform a TUR to allow the controller to
1584 * perform any necessary transfer negotiation.
1585 */
1586 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION);
1587 xpt_schedule(periph, priority);
1588 goto out;
1589 }
1590 xpt_release_ccb(done_ccb);
1591 break;
1592 }
1593 case PROBE_TUR_FOR_NEGOTIATION:
1594 case PROBE_DV_EXIT:
1595 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1596 cam_periph_error(done_ccb, 0,
1597 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1598 }
1599 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1600 /* Don't wedge the queue */
1601 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1602 /*run_queue*/TRUE);
1603 }
1604 /*
1605 * Do Domain Validation for lun 0 on devices that claim
1606 * to support Synchronous Transfer modes.
1607 */
1608 if (softc->action == PROBE_TUR_FOR_NEGOTIATION
1609 && done_ccb->ccb_h.target_lun == 0
1610 && (path->device->inq_data.flags & SID_Sync) != 0
1611 && (path->device->flags & CAM_DEV_IN_DV) == 0) {
1612 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1613 ("Begin Domain Validation\n"));
1614 path->device->flags |= CAM_DEV_IN_DV;
1615 xpt_release_ccb(done_ccb);
1616 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1);
1617 xpt_schedule(periph, priority);
1618 goto out;
1619 }
1620 if (softc->action == PROBE_DV_EXIT) {
1621 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1622 ("Leave Domain Validation\n"));
1623 }
1624 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1625 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1626 xpt_acquire_device(path->device);
1627 }
1628 path->device->flags &=
1629 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
1630 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) {
1631 /* Inform the XPT that a new device has been found */
1632 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1633 xpt_action(done_ccb);
1634 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path,
1635 done_ccb);
1636 }
1637 PROBE_SET_ACTION(softc, PROBE_DONE);
1638 xpt_release_ccb(done_ccb);
1639 break;
1640 case PROBE_INQUIRY_BASIC_DV1:
1641 case PROBE_INQUIRY_BASIC_DV2:
1642 {
1643 struct scsi_inquiry_data *nbuf;
1644 struct ccb_scsiio *csio;
1645
1646 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1647 cam_periph_error(done_ccb, 0,
1648 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1649 }
1650 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1651 /* Don't wedge the queue */
1652 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1653 /*run_queue*/TRUE);
1654 }
1655 csio = &done_ccb->csio;
1656 nbuf = (struct scsi_inquiry_data *)csio->data_ptr;
1657 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) {
1658 xpt_print(path,
1659 "inquiry data fails comparison at DV%d step\n",
1660 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2);
1661 if (proberequestbackoff(periph, path->device)) {
1662 path->device->flags &= ~CAM_DEV_IN_DV;
1663 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION);
1664 } else {
1665 /* give up */
1666 PROBE_SET_ACTION(softc, PROBE_DV_EXIT);
1667 }
1668 free(nbuf, M_CAMXPT);
1669 xpt_release_ccb(done_ccb);
1670 xpt_schedule(periph, priority);
1671 goto out;
1672 }
1673 free(nbuf, M_CAMXPT);
1674 if (softc->action == PROBE_INQUIRY_BASIC_DV1) {
1675 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2);
1676 xpt_release_ccb(done_ccb);
1677 xpt_schedule(periph, priority);
1678 goto out;
1679 }
1680 if (softc->action == PROBE_INQUIRY_BASIC_DV2) {
1681 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1682 ("Leave Domain Validation Successfully\n"));
1683 }
1684 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1685 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1686 xpt_acquire_device(path->device);
1687 }
1688 path->device->flags &=
1689 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
1690 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) {
1691 /* Inform the XPT that a new device has been found */
1692 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1693 xpt_action(done_ccb);
1694 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path,
1695 done_ccb);
1696 }
1697 PROBE_SET_ACTION(softc, PROBE_DONE);
1698 xpt_release_ccb(done_ccb);
1699 break;
1700 }
1701 default:
1702 panic("probedone: invalid action state 0x%x\n", softc->action);
1703 }
1704 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
1705 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe);
1706 done_ccb->ccb_h.status = CAM_REQ_CMP;
1707 xpt_done(done_ccb);
1708 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) {
1709 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n"));
1710 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
1711 cam_release_devq(path, 0, 0, 0, FALSE);
1712 cam_periph_invalidate(periph);
1713 cam_periph_release_locked(periph);
1714 } else {
1715 probeschedule(periph);
1716 goto out;
1717 }
1718}
1719
1720static int
1721probe_strange_rpl_data(struct scsi_report_luns_data *rp, uint32_t maxlun)
1722{
1723 uint32_t idx;
1724 uint32_t nlun = MIN(maxlun, (scsi_4btoul(rp->length) / 8));
1725
1726 for (idx = 0; idx < nlun; idx++) {
1727 if (!CAM_CAN_GET_SIMPLE_LUN(rp, idx)) {
1728 return (-1);
1729 }
1730 }
1731 return (0);
1732}
1733
1734static void
1735probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new)
1736{
1737 struct cam_path *tp;
1738 struct scsi_report_luns_data *old;
1739 u_int idx1, idx2, nlun_old, nlun_new, this_lun;
1740 u_int8_t *ol, *nl;
1741
1742 if (path->target == NULL) {
1743 return;
1744 }
1745 if (path->target->luns == NULL) {
1746 path->target->luns = new;
1747 return;
1748 }
1749 old = path->target->luns;
1750 nlun_old = scsi_4btoul(old->length) / 8;
1751 nlun_new = scsi_4btoul(new->length) / 8;
1752
1753 /*
1754 * We are not going to assume sorted lists. Deal.
1755 */
1756 for (idx1 = 0; idx1 < nlun_old; idx1++) {
1757 ol = old->luns[idx1].lundata;
1758 for (idx2 = 0; idx2 < nlun_new; idx2++) {
1759 nl = new->luns[idx2].lundata;
1760 if (memcmp(nl, ol, 8) == 0) {
1761 break;
1762 }
1763 }
1764 if (idx2 < nlun_new) {
1765 continue;
1766 }
1767 /*
1768 * An 'old' item not in the 'new' list.
1769 * Nuke it. Except that if it is lun 0,
1770 * that would be what the probe state
1771 * machine is currently working on,
1772 * so we won't do that.
1773 *
1774 * We also cannot nuke it if it is
1775 * not in a lun format we understand.
1776 */
1777 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) {
1778 continue;
1779 }
1780 CAM_GET_SIMPLE_LUN(old, idx1, this_lun);
1781 if (this_lun == 0) {
1782 continue;
1783 }
1784 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path),
1785 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) {
1786 xpt_async(AC_LOST_DEVICE, tp, NULL);
1787 xpt_free_path(tp);
1788 }
1789 }
1790 free(old, M_CAMXPT);
1791 path->target->luns = new;
1792}
1793
1794static void
1795probecleanup(struct cam_periph *periph)
1796{
1797 free(periph->softc, M_CAMXPT);
1798}
1799
1800static void
1801scsi_find_quirk(struct cam_ed *device)
1802{
1803 struct scsi_quirk_entry *quirk;
1804 caddr_t match;
1805
1806 match = cam_quirkmatch((caddr_t)&device->inq_data,
1807 (caddr_t)scsi_quirk_table,
1808 sizeof(scsi_quirk_table) /
1809 sizeof(*scsi_quirk_table),
1810 sizeof(*scsi_quirk_table), scsi_inquiry_match);
1811
1812 if (match == NULL)
1813 panic("xpt_find_quirk: device didn't match wildcard entry!!");
1814
1815 quirk = (struct scsi_quirk_entry *)match;
1816 device->quirk = quirk;
1817 device->mintags = quirk->mintags;
1818 device->maxtags = quirk->maxtags;
1819}
1820
1821static int
1822sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS)
1823{
1824 int error, val;
1825
1826 val = cam_srch_hi;
1827 error = sysctl_handle_int(oidp, &val, 0, req);
1828 if (error != 0 || req->newptr == NULL)
1829 return (error);
1830 if (val == 0 || val == 1) {
1831 cam_srch_hi = val;
1832 return (0);
1833 } else {
1834 return (EINVAL);
1835 }
1836}
1837
1838typedef struct {
1839 union ccb *request_ccb;
1840 struct ccb_pathinq *cpi;
1841 int counter;
1842 int lunindex[0];
1843} scsi_scan_bus_info;
1844
1845/*
1846 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb.
1847 * As the scan progresses, scsi_scan_bus is used as the
1848 * callback on completion function.
1849 */
1850static void
1851scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb)
1852{
1853 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE,
1854 ("scsi_scan_bus\n"));
1855 switch (request_ccb->ccb_h.func_code) {
1856 case XPT_SCAN_BUS:
1857 case XPT_SCAN_TGT:
1858 {
1859 scsi_scan_bus_info *scan_info;
1860 union ccb *work_ccb, *reset_ccb;
1861 struct cam_path *path;
1862 u_int i;
1863 u_int low_target, max_target;
1864 u_int initiator_id;
1865
1866 /* Find out the characteristics of the bus */
1867 work_ccb = xpt_alloc_ccb_nowait();
1868 if (work_ccb == NULL) {
1869 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1870 xpt_done(request_ccb);
1871 return;
1872 }
1873 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path,
1874 request_ccb->ccb_h.pinfo.priority);
1875 work_ccb->ccb_h.func_code = XPT_PATH_INQ;
1876 xpt_action(work_ccb);
1877 if (work_ccb->ccb_h.status != CAM_REQ_CMP) {
1878 request_ccb->ccb_h.status = work_ccb->ccb_h.status;
1879 xpt_free_ccb(work_ccb);
1880 xpt_done(request_ccb);
1881 return;
1882 }
1883
1884 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) {
1885 /*
1886 * Can't scan the bus on an adapter that
1887 * cannot perform the initiator role.
1888 */
1889 request_ccb->ccb_h.status = CAM_REQ_CMP;
1890 xpt_free_ccb(work_ccb);
1891 xpt_done(request_ccb);
1892 return;
1893 }
1894
1895 /* We may need to reset bus first, if we haven't done it yet. */
1896 if ((work_ccb->cpi.hba_inquiry &
1897 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) &&
1898 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) &&
1899 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset)) {
1900 reset_ccb = xpt_alloc_ccb_nowait();
1901 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path,
1902 CAM_PRIORITY_NONE);
1903 reset_ccb->ccb_h.func_code = XPT_RESET_BUS;
1904 xpt_action(reset_ccb);
1905 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) {
1906 request_ccb->ccb_h.status = reset_ccb->ccb_h.status;
1907 xpt_free_ccb(reset_ccb);
1908 xpt_free_ccb(work_ccb);
1909 xpt_done(request_ccb);
1910 return;
1911 }
1912 xpt_free_ccb(reset_ccb);
1913 }
1914
1915 /* Save some state for use while we probe for devices */
1916 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) +
1917 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT);
1918 if (scan_info == NULL) {
1919 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1920 xpt_done(request_ccb);
1921 return;
1922 }
1923 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE,
1924 ("SCAN start for %p\n", scan_info));
1925 scan_info->request_ccb = request_ccb;
1926 scan_info->cpi = &work_ccb->cpi;
1927
1928 /* Cache on our stack so we can work asynchronously */
1929 max_target = scan_info->cpi->max_target;
1930 low_target = 0;
1931 initiator_id = scan_info->cpi->initiator_id;
1932
1933
1934 /*
1935 * We can scan all targets in parallel, or do it sequentially.
1936 */
1937
1938 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) {
1939 max_target = low_target = request_ccb->ccb_h.target_id;
1940 scan_info->counter = 0;
1941 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) {
1942 max_target = 0;
1943 scan_info->counter = 0;
1944 } else {
1945 scan_info->counter = scan_info->cpi->max_target + 1;
1946 if (scan_info->cpi->initiator_id < scan_info->counter) {
1947 scan_info->counter--;
1948 }
1949 }
1950
1951 for (i = low_target; i <= max_target; i++) {
1952 cam_status status;
1953 if (i == initiator_id)
1954 continue;
1955
| 32
33#include <sys/param.h>
34#include <sys/bus.h>
35#include <sys/systm.h>
36#include <sys/types.h>
37#include <sys/malloc.h>
38#include <sys/kernel.h>
39#include <sys/time.h>
40#include <sys/conf.h>
41#include <sys/fcntl.h>
42#include <sys/md5.h>
43#include <sys/interrupt.h>
44#include <sys/sbuf.h>
45
46#include <sys/lock.h>
47#include <sys/mutex.h>
48#include <sys/sysctl.h>
49
50#include <cam/cam.h>
51#include <cam/cam_ccb.h>
52#include <cam/cam_queue.h>
53#include <cam/cam_periph.h>
54#include <cam/cam_sim.h>
55#include <cam/cam_xpt.h>
56#include <cam/cam_xpt_sim.h>
57#include <cam/cam_xpt_periph.h>
58#include <cam/cam_xpt_internal.h>
59#include <cam/cam_debug.h>
60
61#include <cam/scsi/scsi_all.h>
62#include <cam/scsi/scsi_message.h>
63#include <cam/scsi/scsi_pass.h>
64#include <machine/stdarg.h> /* for xpt_print below */
65#include "opt_cam.h"
66
67struct scsi_quirk_entry {
68 struct scsi_inquiry_pattern inq_pat;
69 u_int8_t quirks;
70#define CAM_QUIRK_NOLUNS 0x01
71#define CAM_QUIRK_NOVPDS 0x02
72#define CAM_QUIRK_HILUNS 0x04
73#define CAM_QUIRK_NOHILUNS 0x08
74#define CAM_QUIRK_NORPTLUNS 0x10
75 u_int mintags;
76 u_int maxtags;
77};
78#define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk))
79
80static int cam_srch_hi = 0;
81TUNABLE_INT("kern.cam.cam_srch_hi", &cam_srch_hi);
82static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS);
83SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT|CTLFLAG_RW, 0, 0,
84 sysctl_cam_search_luns, "I",
85 "allow search above LUN 7 for SCSI3 and greater devices");
86
87#define CAM_SCSI2_MAXLUN 8
88#define CAM_CAN_GET_SIMPLE_LUN(x, i) \
89 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
90 RPL_LUNDATA_ATYP_PERIPH) || \
91 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
92 RPL_LUNDATA_ATYP_FLAT))
93#define CAM_GET_SIMPLE_LUN(lp, i, lval) \
94 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
95 RPL_LUNDATA_ATYP_PERIPH) { \
96 (lval) = (lp)->luns[(i)].lundata[1]; \
97 } else { \
98 (lval) = (lp)->luns[(i)].lundata[0]; \
99 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \
100 (lval) <<= 8; \
101 (lval) |= (lp)->luns[(i)].lundata[1]; \
102 }
103/*
104 * If we're not quirked to search <= the first 8 luns
105 * and we are either quirked to search above lun 8,
106 * or we're > SCSI-2 and we've enabled hilun searching,
107 * or we're > SCSI-2 and the last lun was a success,
108 * we can look for luns above lun 8.
109 */
110#define CAN_SRCH_HI_SPARSE(dv) \
111 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \
112 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \
113 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi)))
114
115#define CAN_SRCH_HI_DENSE(dv) \
116 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \
117 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \
118 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2)))
119
120static periph_init_t probe_periph_init;
121
122static struct periph_driver probe_driver =
123{
124 probe_periph_init, "probe",
125 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0,
126 CAM_PERIPH_DRV_EARLY
127};
128
129PERIPHDRIVER_DECLARE(probe, probe_driver);
130
131typedef enum {
132 PROBE_TUR,
133 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */
134 PROBE_FULL_INQUIRY,
135 PROBE_REPORT_LUNS,
136 PROBE_MODE_SENSE,
137 PROBE_SUPPORTED_VPD_LIST,
138 PROBE_DEVICE_ID,
139 PROBE_SERIAL_NUM,
140 PROBE_TUR_FOR_NEGOTIATION,
141 PROBE_INQUIRY_BASIC_DV1,
142 PROBE_INQUIRY_BASIC_DV2,
143 PROBE_DV_EXIT,
144 PROBE_DONE,
145 PROBE_INVALID
146} probe_action;
147
148static char *probe_action_text[] = {
149 "PROBE_TUR",
150 "PROBE_INQUIRY",
151 "PROBE_FULL_INQUIRY",
152 "PROBE_REPORT_LUNS",
153 "PROBE_MODE_SENSE",
154 "PROBE_SUPPORTED_VPD_LIST",
155 "PROBE_DEVICE_ID",
156 "PROBE_SERIAL_NUM",
157 "PROBE_TUR_FOR_NEGOTIATION",
158 "PROBE_INQUIRY_BASIC_DV1",
159 "PROBE_INQUIRY_BASIC_DV2",
160 "PROBE_DV_EXIT",
161 "PROBE_DONE",
162 "PROBE_INVALID"
163};
164
165#define PROBE_SET_ACTION(softc, newaction) \
166do { \
167 char **text; \
168 text = probe_action_text; \
169 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \
170 ("Probe %s to %s\n", text[(softc)->action], \
171 text[(newaction)])); \
172 (softc)->action = (newaction); \
173} while(0)
174
175typedef enum {
176 PROBE_INQUIRY_CKSUM = 0x01,
177 PROBE_SERIAL_CKSUM = 0x02,
178 PROBE_NO_ANNOUNCE = 0x04
179} probe_flags;
180
181typedef struct {
182 TAILQ_HEAD(, ccb_hdr) request_ccbs;
183 probe_action action;
184 union ccb saved_ccb;
185 probe_flags flags;
186 MD5_CTX context;
187 u_int8_t digest[16];
188 struct cam_periph *periph;
189} probe_softc;
190
191static const char quantum[] = "QUANTUM";
192static const char sony[] = "SONY";
193static const char west_digital[] = "WDIGTL";
194static const char samsung[] = "SAMSUNG";
195static const char seagate[] = "SEAGATE";
196static const char microp[] = "MICROP";
197
198static struct scsi_quirk_entry scsi_quirk_table[] =
199{
200 {
201 /* Reports QUEUE FULL for temporary resource shortages */
202 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" },
203 /*quirks*/0, /*mintags*/24, /*maxtags*/32
204 },
205 {
206 /* Reports QUEUE FULL for temporary resource shortages */
207 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" },
208 /*quirks*/0, /*mintags*/24, /*maxtags*/32
209 },
210 {
211 /* Reports QUEUE FULL for temporary resource shortages */
212 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" },
213 /*quirks*/0, /*mintags*/24, /*maxtags*/32
214 },
215 {
216 /* Broken tagged queuing drive */
217 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" },
218 /*quirks*/0, /*mintags*/0, /*maxtags*/0
219 },
220 {
221 /* Broken tagged queuing drive */
222 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" },
223 /*quirks*/0, /*mintags*/0, /*maxtags*/0
224 },
225 {
226 /* Broken tagged queuing drive */
227 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" },
228 /*quirks*/0, /*mintags*/0, /*maxtags*/0
229 },
230 {
231 /*
232 * Unfortunately, the Quantum Atlas III has the same
233 * problem as the Atlas II drives above.
234 * Reported by: "Johan Granlund" <johan@granlund.nu>
235 *
236 * For future reference, the drive with the problem was:
237 * QUANTUM QM39100TD-SW N1B0
238 *
239 * It's possible that Quantum will fix the problem in later
240 * firmware revisions. If that happens, the quirk entry
241 * will need to be made specific to the firmware revisions
242 * with the problem.
243 *
244 */
245 /* Reports QUEUE FULL for temporary resource shortages */
246 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" },
247 /*quirks*/0, /*mintags*/24, /*maxtags*/32
248 },
249 {
250 /*
251 * 18 Gig Atlas III, same problem as the 9G version.
252 * Reported by: Andre Albsmeier
253 * <andre.albsmeier@mchp.siemens.de>
254 *
255 * For future reference, the drive with the problem was:
256 * QUANTUM QM318000TD-S N491
257 */
258 /* Reports QUEUE FULL for temporary resource shortages */
259 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" },
260 /*quirks*/0, /*mintags*/24, /*maxtags*/32
261 },
262 {
263 /*
264 * Broken tagged queuing drive
265 * Reported by: Bret Ford <bford@uop.cs.uop.edu>
266 * and: Martin Renters <martin@tdc.on.ca>
267 */
268 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" },
269 /*quirks*/0, /*mintags*/0, /*maxtags*/0
270 },
271 /*
272 * The Seagate Medalist Pro drives have very poor write
273 * performance with anything more than 2 tags.
274 *
275 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl>
276 * Drive: <SEAGATE ST36530N 1444>
277 *
278 * Reported by: Jeremy Lea <reg@shale.csir.co.za>
279 * Drive: <SEAGATE ST34520W 1281>
280 *
281 * No one has actually reported that the 9G version
282 * (ST39140*) of the Medalist Pro has the same problem, but
283 * we're assuming that it does because the 4G and 6.5G
284 * versions of the drive are broken.
285 */
286 {
287 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"},
288 /*quirks*/0, /*mintags*/2, /*maxtags*/2
289 },
290 {
291 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"},
292 /*quirks*/0, /*mintags*/2, /*maxtags*/2
293 },
294 {
295 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"},
296 /*quirks*/0, /*mintags*/2, /*maxtags*/2
297 },
298 {
299 /*
300 * Experiences command timeouts under load with a
301 * tag count higher than 55.
302 */
303 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"},
304 /*quirks*/0, /*mintags*/2, /*maxtags*/55
305 },
306 {
307 /*
308 * Slow when tagged queueing is enabled. Write performance
309 * steadily drops off with more and more concurrent
310 * transactions. Best sequential write performance with
311 * tagged queueing turned off and write caching turned on.
312 *
313 * PR: kern/10398
314 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp>
315 * Drive: DCAS-34330 w/ "S65A" firmware.
316 *
317 * The drive with the problem had the "S65A" firmware
318 * revision, and has also been reported (by Stephen J.
319 * Roznowski <sjr@home.net>) for a drive with the "S61A"
320 * firmware revision.
321 *
322 * Although no one has reported problems with the 2 gig
323 * version of the DCAS drive, the assumption is that it
324 * has the same problems as the 4 gig version. Therefore
325 * this quirk entries disables tagged queueing for all
326 * DCAS drives.
327 */
328 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" },
329 /*quirks*/0, /*mintags*/0, /*maxtags*/0
330 },
331 {
332 /* Broken tagged queuing drive */
333 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" },
334 /*quirks*/0, /*mintags*/0, /*maxtags*/0
335 },
336 {
337 /* Broken tagged queuing drive */
338 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" },
339 /*quirks*/0, /*mintags*/0, /*maxtags*/0
340 },
341 {
342 /* This does not support other than LUN 0 */
343 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" },
344 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
345 },
346 {
347 /*
348 * Broken tagged queuing drive.
349 * Submitted by:
350 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp>
351 * in PR kern/9535
352 */
353 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" },
354 /*quirks*/0, /*mintags*/0, /*maxtags*/0
355 },
356 {
357 /*
358 * Slow when tagged queueing is enabled. (1.5MB/sec versus
359 * 8MB/sec.)
360 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
361 * Best performance with these drives is achieved with
362 * tagged queueing turned off, and write caching turned on.
363 */
364 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" },
365 /*quirks*/0, /*mintags*/0, /*maxtags*/0
366 },
367 {
368 /*
369 * Slow when tagged queueing is enabled. (1.5MB/sec versus
370 * 8MB/sec.)
371 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
372 * Best performance with these drives is achieved with
373 * tagged queueing turned off, and write caching turned on.
374 */
375 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" },
376 /*quirks*/0, /*mintags*/0, /*maxtags*/0
377 },
378 {
379 /*
380 * Doesn't handle queue full condition correctly,
381 * so we need to limit maxtags to what the device
382 * can handle instead of determining this automatically.
383 */
384 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" },
385 /*quirks*/0, /*mintags*/2, /*maxtags*/32
386 },
387 {
388 /* Really only one LUN */
389 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" },
390 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
391 },
392 {
393 /* I can't believe we need a quirk for DPT volumes. */
394 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" },
395 CAM_QUIRK_NOLUNS,
396 /*mintags*/0, /*maxtags*/255
397 },
398 {
399 /*
400 * Many Sony CDROM drives don't like multi-LUN probing.
401 */
402 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" },
403 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
404 },
405 {
406 /*
407 * This drive doesn't like multiple LUN probing.
408 * Submitted by: Parag Patel <parag@cgt.com>
409 */
410 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" },
411 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
412 },
413 {
414 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" },
415 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
416 },
417 {
418 /*
419 * The 8200 doesn't like multi-lun probing, and probably
420 * don't like serial number requests either.
421 */
422 {
423 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE",
424 "EXB-8200*", "*"
425 },
426 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
427 },
428 {
429 /*
430 * Let's try the same as above, but for a drive that says
431 * it's an IPL-6860 but is actually an EXB 8200.
432 */
433 {
434 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE",
435 "IPL-6860*", "*"
436 },
437 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
438 },
439 {
440 /*
441 * These Hitachi drives don't like multi-lun probing.
442 * The PR submitter has a DK319H, but says that the Linux
443 * kernel has a similar work-around for the DK312 and DK314,
444 * so all DK31* drives are quirked here.
445 * PR: misc/18793
446 * Submitted by: Paul Haddad <paul@pth.com>
447 */
448 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" },
449 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
450 },
451 {
452 /*
453 * The Hitachi CJ series with J8A8 firmware apparantly has
454 * problems with tagged commands.
455 * PR: 23536
456 * Reported by: amagai@nue.org
457 */
458 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" },
459 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
460 },
461 {
462 /*
463 * These are the large storage arrays.
464 * Submitted by: William Carrel <william.carrel@infospace.com>
465 */
466 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" },
467 CAM_QUIRK_HILUNS, 2, 1024
468 },
469 {
470 /*
471 * This old revision of the TDC3600 is also SCSI-1, and
472 * hangs upon serial number probing.
473 */
474 {
475 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
476 " TDC 3600", "U07:"
477 },
478 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0
479 },
480 {
481 /*
482 * Would repond to all LUNs if asked for.
483 */
484 {
485 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER",
486 "CP150", "*"
487 },
488 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
489 },
490 {
491 /*
492 * Would repond to all LUNs if asked for.
493 */
494 {
495 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
496 "96X2*", "*"
497 },
498 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
499 },
500 {
501 /* Submitted by: Matthew Dodd <winter@jurai.net> */
502 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" },
503 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
504 },
505 {
506 /* Submitted by: Matthew Dodd <winter@jurai.net> */
507 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" },
508 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
509 },
510 {
511 /* TeraSolutions special settings for TRC-22 RAID */
512 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" },
513 /*quirks*/0, /*mintags*/55, /*maxtags*/255
514 },
515 {
516 /* Veritas Storage Appliance */
517 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" },
518 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024
519 },
520 {
521 /*
522 * Would respond to all LUNs. Device type and removable
523 * flag are jumper-selectable.
524 */
525 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix",
526 "Tahiti 1", "*"
527 },
528 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
529 },
530 {
531 /* EasyRAID E5A aka. areca ARC-6010 */
532 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" },
533 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255
534 },
535 {
536 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" },
537 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
538 },
539 {
540 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" },
541 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255
542 },
543 {
544 /* Default tagged queuing parameters for all devices */
545 {
546 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED,
547 /*vendor*/"*", /*product*/"*", /*revision*/"*"
548 },
549 /*quirks*/0, /*mintags*/2, /*maxtags*/255
550 },
551};
552
553static const int scsi_quirk_table_size =
554 sizeof(scsi_quirk_table) / sizeof(*scsi_quirk_table);
555
556static cam_status proberegister(struct cam_periph *periph,
557 void *arg);
558static void probeschedule(struct cam_periph *probe_periph);
559static int device_has_vpd(struct cam_ed *device, uint8_t page_id);
560static void probestart(struct cam_periph *periph, union ccb *start_ccb);
561static void proberequestdefaultnegotiation(struct cam_periph *periph);
562static int proberequestbackoff(struct cam_periph *periph,
563 struct cam_ed *device);
564static void probedone(struct cam_periph *periph, union ccb *done_ccb);
565static int probe_strange_rpl_data(struct scsi_report_luns_data *rp,
566 uint32_t maxlun);
567static void probe_purge_old(struct cam_path *path,
568 struct scsi_report_luns_data *new);
569static void probecleanup(struct cam_periph *periph);
570static void scsi_find_quirk(struct cam_ed *device);
571static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb);
572static void scsi_scan_lun(struct cam_periph *periph,
573 struct cam_path *path, cam_flags flags,
574 union ccb *ccb);
575static void xptscandone(struct cam_periph *periph, union ccb *done_ccb);
576static struct cam_ed *
577 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target,
578 lun_id_t lun_id);
579static void scsi_devise_transport(struct cam_path *path);
580static void scsi_set_transfer_settings(struct ccb_trans_settings *cts,
581 struct cam_ed *device,
582 int async_update);
583static void scsi_toggle_tags(struct cam_path *path);
584static void scsi_dev_async(u_int32_t async_code,
585 struct cam_eb *bus,
586 struct cam_et *target,
587 struct cam_ed *device,
588 void *async_arg);
589static void scsi_action(union ccb *start_ccb);
590static void scsi_announce_periph(struct cam_periph *periph);
591
592static struct xpt_xport scsi_xport = {
593 .alloc_device = scsi_alloc_device,
594 .action = scsi_action,
595 .async = scsi_dev_async,
596 .announce = scsi_announce_periph,
597};
598
599struct xpt_xport *
600scsi_get_xport(void)
601{
602 return (&scsi_xport);
603}
604
605static void
606probe_periph_init()
607{
608}
609
610static cam_status
611proberegister(struct cam_periph *periph, void *arg)
612{
613 union ccb *request_ccb; /* CCB representing the probe request */
614 cam_status status;
615 probe_softc *softc;
616
617 request_ccb = (union ccb *)arg;
618 if (request_ccb == NULL) {
619 printf("proberegister: no probe CCB, "
620 "can't register device\n");
621 return(CAM_REQ_CMP_ERR);
622 }
623
624 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT);
625
626 if (softc == NULL) {
627 printf("proberegister: Unable to probe new device. "
628 "Unable to allocate softc\n");
629 return(CAM_REQ_CMP_ERR);
630 }
631 TAILQ_INIT(&softc->request_ccbs);
632 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h,
633 periph_links.tqe);
634 softc->flags = 0;
635 periph->softc = softc;
636 softc->periph = periph;
637 softc->action = PROBE_INVALID;
638 status = cam_periph_acquire(periph);
639 if (status != CAM_REQ_CMP) {
640 return (status);
641 }
642 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n"));
643
644 /*
645 * Ensure we've waited at least a bus settle
646 * delay before attempting to probe the device.
647 * For HBAs that don't do bus resets, this won't make a difference.
648 */
649 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset,
650 scsi_delay);
651 probeschedule(periph);
652 return(CAM_REQ_CMP);
653}
654
655static void
656probeschedule(struct cam_periph *periph)
657{
658 struct ccb_pathinq cpi;
659 union ccb *ccb;
660 probe_softc *softc;
661
662 softc = (probe_softc *)periph->softc;
663 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
664
665 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE);
666 cpi.ccb_h.func_code = XPT_PATH_INQ;
667 xpt_action((union ccb *)&cpi);
668
669 /*
670 * If a device has gone away and another device, or the same one,
671 * is back in the same place, it should have a unit attention
672 * condition pending. It will not report the unit attention in
673 * response to an inquiry, which may leave invalid transfer
674 * negotiations in effect. The TUR will reveal the unit attention
675 * condition. Only send the TUR for lun 0, since some devices
676 * will get confused by commands other than inquiry to non-existent
677 * luns. If you think a device has gone away start your scan from
678 * lun 0. This will insure that any bogus transfer settings are
679 * invalidated.
680 *
681 * If we haven't seen the device before and the controller supports
682 * some kind of transfer negotiation, negotiate with the first
683 * sent command if no bus reset was performed at startup. This
684 * ensures that the device is not confused by transfer negotiation
685 * settings left over by loader or BIOS action.
686 */
687 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
688 && (ccb->ccb_h.target_lun == 0)) {
689 PROBE_SET_ACTION(softc, PROBE_TUR);
690 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0
691 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) {
692 proberequestdefaultnegotiation(periph);
693 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
694 } else {
695 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
696 }
697
698 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE)
699 softc->flags |= PROBE_NO_ANNOUNCE;
700 else
701 softc->flags &= ~PROBE_NO_ANNOUNCE;
702
703 xpt_schedule(periph, CAM_PRIORITY_XPT);
704}
705
706static int
707device_has_vpd(struct cam_ed *device, uint8_t page_id)
708{
709 int i, num_pages;
710 struct scsi_vpd_supported_pages *vpds;
711
712 vpds = (struct scsi_vpd_supported_pages *)device->supported_vpds;
713 num_pages = device->supported_vpds_len - SVPD_SUPPORTED_PAGES_HDR_LEN;
714 for (i = 0;i < num_pages;i++)
715 if (vpds->page_list[i] == page_id)
716 return 1;
717
718 return 0;
719}
720
721static void
722probestart(struct cam_periph *periph, union ccb *start_ccb)
723{
724 /* Probe the device that our peripheral driver points to */
725 struct ccb_scsiio *csio;
726 probe_softc *softc;
727
728 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n"));
729
730 softc = (probe_softc *)periph->softc;
731 csio = &start_ccb->csio;
732again:
733
734 switch (softc->action) {
735 case PROBE_TUR:
736 case PROBE_TUR_FOR_NEGOTIATION:
737 case PROBE_DV_EXIT:
738 {
739 scsi_test_unit_ready(csio,
740 /*retries*/4,
741 probedone,
742 MSG_SIMPLE_Q_TAG,
743 SSD_FULL_SIZE,
744 /*timeout*/60000);
745 break;
746 }
747 case PROBE_INQUIRY:
748 case PROBE_FULL_INQUIRY:
749 case PROBE_INQUIRY_BASIC_DV1:
750 case PROBE_INQUIRY_BASIC_DV2:
751 {
752 u_int inquiry_len;
753 struct scsi_inquiry_data *inq_buf;
754
755 inq_buf = &periph->path->device->inq_data;
756
757 /*
758 * If the device is currently configured, we calculate an
759 * MD5 checksum of the inquiry data, and if the serial number
760 * length is greater than 0, add the serial number data
761 * into the checksum as well. Once the inquiry and the
762 * serial number check finish, we attempt to figure out
763 * whether we still have the same device.
764 */
765 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
766
767 MD5Init(&softc->context);
768 MD5Update(&softc->context, (unsigned char *)inq_buf,
769 sizeof(struct scsi_inquiry_data));
770 softc->flags |= PROBE_INQUIRY_CKSUM;
771 if (periph->path->device->serial_num_len > 0) {
772 MD5Update(&softc->context,
773 periph->path->device->serial_num,
774 periph->path->device->serial_num_len);
775 softc->flags |= PROBE_SERIAL_CKSUM;
776 }
777 MD5Final(softc->digest, &softc->context);
778 }
779
780 if (softc->action == PROBE_INQUIRY)
781 inquiry_len = SHORT_INQUIRY_LENGTH;
782 else
783 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf);
784
785 /*
786 * Some parallel SCSI devices fail to send an
787 * ignore wide residue message when dealing with
788 * odd length inquiry requests. Round up to be
789 * safe.
790 */
791 inquiry_len = roundup2(inquiry_len, 2);
792
793 if (softc->action == PROBE_INQUIRY_BASIC_DV1
794 || softc->action == PROBE_INQUIRY_BASIC_DV2) {
795 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT);
796 }
797 if (inq_buf == NULL) {
798 xpt_print(periph->path, "malloc failure- skipping Basic"
799 "Domain Validation\n");
800 PROBE_SET_ACTION(softc, PROBE_DV_EXIT);
801 scsi_test_unit_ready(csio,
802 /*retries*/4,
803 probedone,
804 MSG_SIMPLE_Q_TAG,
805 SSD_FULL_SIZE,
806 /*timeout*/60000);
807 break;
808 }
809 scsi_inquiry(csio,
810 /*retries*/4,
811 probedone,
812 MSG_SIMPLE_Q_TAG,
813 (u_int8_t *)inq_buf,
814 inquiry_len,
815 /*evpd*/FALSE,
816 /*page_code*/0,
817 SSD_MIN_SIZE,
818 /*timeout*/60 * 1000);
819 break;
820 }
821 case PROBE_REPORT_LUNS:
822 {
823 void *rp;
824
825 rp = malloc(periph->path->target->rpl_size,
826 M_CAMXPT, M_NOWAIT | M_ZERO);
827 if (rp == NULL) {
828 struct scsi_inquiry_data *inq_buf;
829 inq_buf = &periph->path->device->inq_data;
830 xpt_print(periph->path,
831 "Unable to alloc report luns storage\n");
832 if (INQ_DATA_TQ_ENABLED(inq_buf))
833 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE);
834 else
835 PROBE_SET_ACTION(softc,
836 PROBE_SUPPORTED_VPD_LIST);
837 goto again;
838 }
839 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG,
840 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size,
841 SSD_FULL_SIZE, 60000); break;
842 break;
843 }
844 case PROBE_MODE_SENSE:
845 {
846 void *mode_buf;
847 int mode_buf_len;
848
849 mode_buf_len = sizeof(struct scsi_mode_header_6)
850 + sizeof(struct scsi_mode_blk_desc)
851 + sizeof(struct scsi_control_page);
852 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT);
853 if (mode_buf != NULL) {
854 scsi_mode_sense(csio,
855 /*retries*/4,
856 probedone,
857 MSG_SIMPLE_Q_TAG,
858 /*dbd*/FALSE,
859 SMS_PAGE_CTRL_CURRENT,
860 SMS_CONTROL_MODE_PAGE,
861 mode_buf,
862 mode_buf_len,
863 SSD_FULL_SIZE,
864 /*timeout*/60000);
865 break;
866 }
867 xpt_print(periph->path, "Unable to mode sense control page - "
868 "malloc failure\n");
869 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST);
870 }
871 /* FALLTHROUGH */
872 case PROBE_SUPPORTED_VPD_LIST:
873 {
874 struct scsi_vpd_supported_page_list *vpd_list;
875 struct cam_ed *device;
876
877 vpd_list = NULL;
878 device = periph->path->device;
879
880 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0)
881 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT,
882 M_NOWAIT | M_ZERO);
883
884 if (vpd_list != NULL) {
885 scsi_inquiry(csio,
886 /*retries*/4,
887 probedone,
888 MSG_SIMPLE_Q_TAG,
889 (u_int8_t *)vpd_list,
890 sizeof(*vpd_list),
891 /*evpd*/TRUE,
892 SVPD_SUPPORTED_PAGE_LIST,
893 SSD_MIN_SIZE,
894 /*timeout*/60 * 1000);
895 break;
896 }
897 /*
898 * We'll have to do without, let our probedone
899 * routine finish up for us.
900 */
901 start_ccb->csio.data_ptr = NULL;
902 probedone(periph, start_ccb);
903 return;
904 }
905 case PROBE_DEVICE_ID:
906 {
907 struct scsi_vpd_device_id *devid;
908 struct cam_ed *device;
909
910 devid = NULL;
911 device = periph->path->device;
912 if (device_has_vpd(device, SVPD_DEVICE_ID))
913 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT,
914 M_NOWAIT | M_ZERO);
915
916 if (devid != NULL) {
917 scsi_inquiry(csio,
918 /*retries*/4,
919 probedone,
920 MSG_SIMPLE_Q_TAG,
921 (uint8_t *)devid,
922 SVPD_DEVICE_ID_MAX_SIZE,
923 /*evpd*/TRUE,
924 SVPD_DEVICE_ID,
925 SSD_MIN_SIZE,
926 /*timeout*/60 * 1000);
927 break;
928 }
929 /*
930 * We'll have to do without, let our probedone
931 * routine finish up for us.
932 */
933 start_ccb->csio.data_ptr = NULL;
934 probedone(periph, start_ccb);
935 return;
936 }
937 case PROBE_SERIAL_NUM:
938 {
939 struct scsi_vpd_unit_serial_number *serial_buf;
940 struct cam_ed* device;
941
942 serial_buf = NULL;
943 device = periph->path->device;
944 if (device->serial_num != NULL) {
945 free(device->serial_num, M_CAMXPT);
946 device->serial_num = NULL;
947 device->serial_num_len = 0;
948 }
949
950 if (device_has_vpd(device, SVPD_UNIT_SERIAL_NUMBER))
951 serial_buf = (struct scsi_vpd_unit_serial_number *)
952 malloc(sizeof(*serial_buf), M_CAMXPT,
953 M_NOWAIT|M_ZERO);
954
955 if (serial_buf != NULL) {
956 scsi_inquiry(csio,
957 /*retries*/4,
958 probedone,
959 MSG_SIMPLE_Q_TAG,
960 (u_int8_t *)serial_buf,
961 sizeof(*serial_buf),
962 /*evpd*/TRUE,
963 SVPD_UNIT_SERIAL_NUMBER,
964 SSD_MIN_SIZE,
965 /*timeout*/60 * 1000);
966 break;
967 }
968 /*
969 * We'll have to do without, let our probedone
970 * routine finish up for us.
971 */
972 start_ccb->csio.data_ptr = NULL;
973 probedone(periph, start_ccb);
974 return;
975 }
976 default:
977 panic("probestart: invalid action state 0x%x\n", softc->action);
978 }
979 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
980 xpt_action(start_ccb);
981}
982
983static void
984proberequestdefaultnegotiation(struct cam_periph *periph)
985{
986 struct ccb_trans_settings cts;
987
988 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
989 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
990 cts.type = CTS_TYPE_USER_SETTINGS;
991 xpt_action((union ccb *)&cts);
992 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
993 return;
994 }
995 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
996 cts.type = CTS_TYPE_CURRENT_SETTINGS;
997 xpt_action((union ccb *)&cts);
998}
999
1000/*
1001 * Backoff Negotiation Code- only pertinent for SPI devices.
1002 */
1003static int
1004proberequestbackoff(struct cam_periph *periph, struct cam_ed *device)
1005{
1006 struct ccb_trans_settings cts;
1007 struct ccb_trans_settings_spi *spi;
1008
1009 memset(&cts, 0, sizeof (cts));
1010 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1011 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1012 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1013 xpt_action((union ccb *)&cts);
1014 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1015 if (bootverbose) {
1016 xpt_print(periph->path,
1017 "failed to get current device settings\n");
1018 }
1019 return (0);
1020 }
1021 if (cts.transport != XPORT_SPI) {
1022 if (bootverbose) {
1023 xpt_print(periph->path, "not SPI transport\n");
1024 }
1025 return (0);
1026 }
1027 spi = &cts.xport_specific.spi;
1028
1029 /*
1030 * We cannot renegotiate sync rate if we don't have one.
1031 */
1032 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
1033 if (bootverbose) {
1034 xpt_print(periph->path, "no sync rate known\n");
1035 }
1036 return (0);
1037 }
1038
1039 /*
1040 * We'll assert that we don't have to touch PPR options- the
1041 * SIM will see what we do with period and offset and adjust
1042 * the PPR options as appropriate.
1043 */
1044
1045 /*
1046 * A sync rate with unknown or zero offset is nonsensical.
1047 * A sync period of zero means Async.
1048 */
1049 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0
1050 || spi->sync_offset == 0 || spi->sync_period == 0) {
1051 if (bootverbose) {
1052 xpt_print(periph->path, "no sync rate available\n");
1053 }
1054 return (0);
1055 }
1056
1057 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) {
1058 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1059 ("hit async: giving up on DV\n"));
1060 return (0);
1061 }
1062
1063
1064 /*
1065 * Jump sync_period up by one, but stop at 5MHz and fall back to Async.
1066 * We don't try to remember 'last' settings to see if the SIM actually
1067 * gets into the speed we want to set. We check on the SIM telling
1068 * us that a requested speed is bad, but otherwise don't try and
1069 * check the speed due to the asynchronous and handshake nature
1070 * of speed setting.
1071 */
1072 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET;
1073 for (;;) {
1074 spi->sync_period++;
1075 if (spi->sync_period >= 0xf) {
1076 spi->sync_period = 0;
1077 spi->sync_offset = 0;
1078 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1079 ("setting to async for DV\n"));
1080 /*
1081 * Once we hit async, we don't want to try
1082 * any more settings.
1083 */
1084 device->flags |= CAM_DEV_DV_HIT_BOTTOM;
1085 } else if (bootverbose) {
1086 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1087 ("DV: period 0x%x\n", spi->sync_period));
1088 printf("setting period to 0x%x\n", spi->sync_period);
1089 }
1090 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1091 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1092 xpt_action((union ccb *)&cts);
1093 if ((cts.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1094 break;
1095 }
1096 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1097 ("DV: failed to set period 0x%x\n", spi->sync_period));
1098 if (spi->sync_period == 0) {
1099 return (0);
1100 }
1101 }
1102 return (1);
1103}
1104
1105#define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP)
1106
1107static void
1108probedone(struct cam_periph *periph, union ccb *done_ccb)
1109{
1110 probe_softc *softc;
1111 struct cam_path *path;
1112 u_int32_t priority;
1113
1114 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n"));
1115
1116 softc = (probe_softc *)periph->softc;
1117 path = done_ccb->ccb_h.path;
1118 priority = done_ccb->ccb_h.pinfo.priority;
1119
1120 switch (softc->action) {
1121 case PROBE_TUR:
1122 {
1123 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1124
1125 if (cam_periph_error(done_ccb, 0,
1126 SF_NO_PRINT, NULL) == ERESTART) {
1127out:
1128 /* Drop freeze taken due to CAM_DEV_QFREEZE */
1129 cam_release_devq(path, 0, 0, 0, FALSE);
1130 return;
1131 }
1132 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1133 /* Don't wedge the queue */
1134 xpt_release_devq(done_ccb->ccb_h.path,
1135 /*count*/1,
1136 /*run_queue*/TRUE);
1137 }
1138 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
1139 xpt_release_ccb(done_ccb);
1140 xpt_schedule(periph, priority);
1141 goto out;
1142 }
1143 case PROBE_INQUIRY:
1144 case PROBE_FULL_INQUIRY:
1145 {
1146 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1147 struct scsi_inquiry_data *inq_buf;
1148 u_int8_t periph_qual;
1149
1150 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID;
1151 inq_buf = &path->device->inq_data;
1152
1153 periph_qual = SID_QUAL(inq_buf);
1154
1155 if (periph_qual == SID_QUAL_LU_CONNECTED) {
1156 u_int8_t len;
1157
1158 /*
1159 * We conservatively request only
1160 * SHORT_INQUIRY_LEN bytes of inquiry
1161 * information during our first try
1162 * at sending an INQUIRY. If the device
1163 * has more information to give,
1164 * perform a second request specifying
1165 * the amount of information the device
1166 * is willing to give.
1167 */
1168 len = inq_buf->additional_length
1169 + offsetof(struct scsi_inquiry_data,
1170 additional_length) + 1;
1171 if (softc->action == PROBE_INQUIRY
1172 && len > SHORT_INQUIRY_LENGTH) {
1173 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY);
1174 xpt_release_ccb(done_ccb);
1175 xpt_schedule(periph, priority);
1176 goto out;
1177 }
1178
1179 scsi_find_quirk(path->device);
1180
1181 scsi_devise_transport(path);
1182
1183 if (path->device->lun_id == 0 &&
1184 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 &&
1185 (SCSI_QUIRK(path->device)->quirks &
1186 CAM_QUIRK_NORPTLUNS) == 0) {
1187 PROBE_SET_ACTION(softc,
1188 PROBE_REPORT_LUNS);
1189 /*
1190 * Start with room for *one* lun.
1191 */
1192 periph->path->target->rpl_size = 16;
1193 } else if (INQ_DATA_TQ_ENABLED(inq_buf))
1194 PROBE_SET_ACTION(softc,
1195 PROBE_MODE_SENSE);
1196 else
1197 PROBE_SET_ACTION(softc,
1198 PROBE_SUPPORTED_VPD_LIST);
1199
1200 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1201 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1202 xpt_acquire_device(path->device);
1203 }
1204 xpt_release_ccb(done_ccb);
1205 xpt_schedule(periph, priority);
1206 goto out;
1207 } else if (path->device->lun_id == 0 &&
1208 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 &&
1209 (SCSI_QUIRK(path->device)->quirks &
1210 CAM_QUIRK_NORPTLUNS) == 0) {
1211 if (path->device->flags &
1212 CAM_DEV_UNCONFIGURED) {
1213 path->device->flags &=
1214 ~CAM_DEV_UNCONFIGURED;
1215 xpt_acquire_device(path->device);
1216 }
1217 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS);
1218 periph->path->target->rpl_size = 16;
1219 xpt_release_ccb(done_ccb);
1220 xpt_schedule(periph, priority);
1221 goto out;
1222 }
1223 } else if (cam_periph_error(done_ccb, 0,
1224 done_ccb->ccb_h.target_lun > 0
1225 ? SF_RETRY_UA|SF_QUIET_IR
1226 : SF_RETRY_UA,
1227 &softc->saved_ccb) == ERESTART) {
1228 goto out;
1229 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1230 /* Don't wedge the queue */
1231 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1232 /*run_queue*/TRUE);
1233 }
1234 /*
1235 * If we get to this point, we got an error status back
1236 * from the inquiry and the error status doesn't require
1237 * automatically retrying the command. Therefore, the
1238 * inquiry failed. If we had inquiry information before
1239 * for this device, but this latest inquiry command failed,
1240 * the device has probably gone away. If this device isn't
1241 * already marked unconfigured, notify the peripheral
1242 * drivers that this device is no more.
1243 */
1244 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
1245 /* Send the async notification. */
1246 xpt_async(AC_LOST_DEVICE, path, NULL);
1247 PROBE_SET_ACTION(softc, PROBE_INVALID);
1248
1249 xpt_release_ccb(done_ccb);
1250 break;
1251 }
1252 case PROBE_REPORT_LUNS:
1253 {
1254 struct ccb_scsiio *csio;
1255 struct scsi_report_luns_data *lp;
1256 u_int nlun, maxlun;
1257
1258 csio = &done_ccb->csio;
1259
1260 lp = (struct scsi_report_luns_data *)csio->data_ptr;
1261 nlun = scsi_4btoul(lp->length) / 8;
1262 maxlun = (csio->dxfer_len / 8) - 1;
1263
1264 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1265 if (cam_periph_error(done_ccb, 0,
1266 done_ccb->ccb_h.target_lun > 0 ?
1267 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA,
1268 &softc->saved_ccb) == ERESTART) {
1269 goto out;
1270 }
1271 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1272 xpt_release_devq(done_ccb->ccb_h.path, 1,
1273 TRUE);
1274 }
1275 free(lp, M_CAMXPT);
1276 lp = NULL;
1277 } else if (nlun > maxlun) {
1278 /*
1279 * Reallocate and retry to cover all luns
1280 */
1281 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1282 ("Probe: reallocating REPORT_LUNS for %u luns\n",
1283 nlun));
1284 free(lp, M_CAMXPT);
1285 path->target->rpl_size = (nlun << 3) + 8;
1286 xpt_release_ccb(done_ccb);
1287 xpt_schedule(periph, priority);
1288 goto out;
1289 } else if (nlun == 0) {
1290 /*
1291 * If there don't appear to be any luns, bail.
1292 */
1293 free(lp, M_CAMXPT);
1294 lp = NULL;
1295 } else if (probe_strange_rpl_data(lp, maxlun)) {
1296 /*
1297 * If we can't understand the lun format
1298 * of any entry, bail.
1299 */
1300 free(lp, M_CAMXPT);
1301 lp = NULL;
1302 } else {
1303 lun_id_t lun;
1304 int idx;
1305
1306 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1307 ("Probe: %u lun(s) reported\n", nlun));
1308
1309 CAM_GET_SIMPLE_LUN(lp, 0, lun);
1310 /*
1311 * If the first lun is not lun 0, then either there
1312 * is no lun 0 in the list, or the list is unsorted.
1313 */
1314 if (lun != 0) {
1315 for (idx = 0; idx < nlun; idx++) {
1316 CAM_GET_SIMPLE_LUN(lp, idx, lun);
1317 if (lun == 0) {
1318 break;
1319 }
1320 }
1321 if (idx != nlun) {
1322 uint8_t tlun[8];
1323 memcpy(tlun,
1324 lp->luns[0].lundata, 8);
1325 memcpy(lp->luns[0].lundata,
1326 lp->luns[idx].lundata, 8);
1327 memcpy(lp->luns[idx].lundata,
1328 tlun, 8);
1329 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1330 ("lun 0 in position %u\n", idx));
1331 } else {
1332 /*
1333 * There is no lun 0 in our list. Destroy
1334 * the validity of the inquiry data so we
1335 * bail here and now.
1336 */
1337 path->device->flags &=
1338 ~CAM_DEV_INQUIRY_DATA_VALID;
1339 }
1340 }
1341 /*
1342 * If we have an old lun list, We can either
1343 * retest luns that appear to have been dropped,
1344 * or just nuke them. We'll opt for the latter.
1345 * This function will also install the new list
1346 * in the target structure.
1347 */
1348 probe_purge_old(path, lp);
1349 lp = NULL;
1350 }
1351 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) {
1352 struct scsi_inquiry_data *inq_buf;
1353 inq_buf = &path->device->inq_data;
1354 if (INQ_DATA_TQ_ENABLED(inq_buf))
1355 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE);
1356 else
1357 PROBE_SET_ACTION(softc,
1358 PROBE_SUPPORTED_VPD_LIST);
1359 xpt_release_ccb(done_ccb);
1360 xpt_schedule(periph, priority);
1361 goto out;
1362 }
1363 if (lp) {
1364 free(lp, M_CAMXPT);
1365 }
1366 break;
1367 }
1368 case PROBE_MODE_SENSE:
1369 {
1370 struct ccb_scsiio *csio;
1371 struct scsi_mode_header_6 *mode_hdr;
1372
1373 csio = &done_ccb->csio;
1374 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr;
1375 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1376 struct scsi_control_page *page;
1377 u_int8_t *offset;
1378
1379 offset = ((u_int8_t *)&mode_hdr[1])
1380 + mode_hdr->blk_desc_len;
1381 page = (struct scsi_control_page *)offset;
1382 path->device->queue_flags = page->queue_flags;
1383 } else if (cam_periph_error(done_ccb, 0,
1384 SF_RETRY_UA|SF_NO_PRINT,
1385 &softc->saved_ccb) == ERESTART) {
1386 goto out;
1387 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1388 /* Don't wedge the queue */
1389 xpt_release_devq(done_ccb->ccb_h.path,
1390 /*count*/1, /*run_queue*/TRUE);
1391 }
1392 xpt_release_ccb(done_ccb);
1393 free(mode_hdr, M_CAMXPT);
1394 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST);
1395 xpt_schedule(periph, priority);
1396 goto out;
1397 }
1398 case PROBE_SUPPORTED_VPD_LIST:
1399 {
1400 struct ccb_scsiio *csio;
1401 struct scsi_vpd_supported_page_list *page_list;
1402
1403 csio = &done_ccb->csio;
1404 page_list =
1405 (struct scsi_vpd_supported_page_list *)csio->data_ptr;
1406
1407 if (path->device->supported_vpds != NULL) {
1408 free(path->device->supported_vpds, M_CAMXPT);
1409 path->device->supported_vpds = NULL;
1410 path->device->supported_vpds_len = 0;
1411 }
1412
1413 if (page_list == NULL) {
1414 /*
1415 * Don't process the command as it was never sent
1416 */
1417 } else if (CCB_COMPLETED_OK(csio->ccb_h)) {
1418 /* Got vpd list */
1419 path->device->supported_vpds_len = page_list->length +
1420 SVPD_SUPPORTED_PAGES_HDR_LEN;
1421 path->device->supported_vpds = (uint8_t *)page_list;
1422 xpt_release_ccb(done_ccb);
1423 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID);
1424 xpt_schedule(periph, priority);
1425 goto out;
1426 } else if (cam_periph_error(done_ccb, 0,
1427 SF_RETRY_UA|SF_NO_PRINT,
1428 &softc->saved_ccb) == ERESTART) {
1429 goto out;
1430 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1431 /* Don't wedge the queue */
1432 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1433 /*run_queue*/TRUE);
1434 }
1435
1436 if (page_list)
1437 free(page_list, M_CAMXPT);
1438 /* No VPDs available, skip to device check. */
1439 csio->data_ptr = NULL;
1440 goto probe_device_check;
1441 }
1442 case PROBE_DEVICE_ID:
1443 {
1444 struct scsi_vpd_device_id *devid;
1445 struct ccb_scsiio *csio;
1446 uint32_t length = 0;
1447
1448 csio = &done_ccb->csio;
1449 devid = (struct scsi_vpd_device_id *)csio->data_ptr;
1450
1451 /* Clean up from previous instance of this device */
1452 if (path->device->device_id != NULL) {
1453 path->device->device_id_len = 0;
1454 free(path->device->device_id, M_CAMXPT);
1455 path->device->device_id = NULL;
1456 }
1457
1458 if (devid == NULL) {
1459 /* Don't process the command as it was never sent */
1460 } else if (CCB_COMPLETED_OK(csio->ccb_h)) {
1461 length = scsi_2btoul(devid->length);
1462 if (length != 0) {
1463 /*
1464 * NB: device_id_len is actual response
1465 * size, not buffer size.
1466 */
1467 path->device->device_id_len = length +
1468 SVPD_DEVICE_ID_HDR_LEN;
1469 path->device->device_id = (uint8_t *)devid;
1470 }
1471 } else if (cam_periph_error(done_ccb, 0,
1472 SF_RETRY_UA,
1473 &softc->saved_ccb) == ERESTART) {
1474 goto out;
1475 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1476 /* Don't wedge the queue */
1477 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1478 /*run_queue*/TRUE);
1479 }
1480
1481 /* Free the device id space if we don't use it */
1482 if (devid && length == 0)
1483 free(devid, M_CAMXPT);
1484 xpt_release_ccb(done_ccb);
1485 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM);
1486 xpt_schedule(periph, priority);
1487 goto out;
1488 }
1489
1490probe_device_check:
1491 case PROBE_SERIAL_NUM:
1492 {
1493 struct ccb_scsiio *csio;
1494 struct scsi_vpd_unit_serial_number *serial_buf;
1495 u_int32_t priority;
1496 int changed;
1497 int have_serialnum;
1498
1499 changed = 1;
1500 have_serialnum = 0;
1501 csio = &done_ccb->csio;
1502 priority = done_ccb->ccb_h.pinfo.priority;
1503 serial_buf =
1504 (struct scsi_vpd_unit_serial_number *)csio->data_ptr;
1505
1506 if (serial_buf == NULL) {
1507 /*
1508 * Don't process the command as it was never sent
1509 */
1510 } else if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP
1511 && (serial_buf->length > 0)) {
1512
1513 have_serialnum = 1;
1514 path->device->serial_num =
1515 (u_int8_t *)malloc((serial_buf->length + 1),
1516 M_CAMXPT, M_NOWAIT);
1517 if (path->device->serial_num != NULL) {
1518 memcpy(path->device->serial_num,
1519 serial_buf->serial_num,
1520 serial_buf->length);
1521 path->device->serial_num_len =
1522 serial_buf->length;
1523 path->device->serial_num[serial_buf->length]
1524 = '\0';
1525 }
1526 } else if (cam_periph_error(done_ccb, 0,
1527 SF_RETRY_UA|SF_NO_PRINT,
1528 &softc->saved_ccb) == ERESTART) {
1529 goto out;
1530 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1531 /* Don't wedge the queue */
1532 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1533 /*run_queue*/TRUE);
1534 }
1535
1536 /*
1537 * Let's see if we have seen this device before.
1538 */
1539 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) {
1540 MD5_CTX context;
1541 u_int8_t digest[16];
1542
1543 MD5Init(&context);
1544
1545 MD5Update(&context,
1546 (unsigned char *)&path->device->inq_data,
1547 sizeof(struct scsi_inquiry_data));
1548
1549 if (have_serialnum)
1550 MD5Update(&context, serial_buf->serial_num,
1551 serial_buf->length);
1552
1553 MD5Final(digest, &context);
1554 if (bcmp(softc->digest, digest, 16) == 0)
1555 changed = 0;
1556
1557 /*
1558 * XXX Do we need to do a TUR in order to ensure
1559 * that the device really hasn't changed???
1560 */
1561 if ((changed != 0)
1562 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0))
1563 xpt_async(AC_LOST_DEVICE, path, NULL);
1564 }
1565 if (serial_buf != NULL)
1566 free(serial_buf, M_CAMXPT);
1567
1568 if (changed != 0) {
1569 /*
1570 * Now that we have all the necessary
1571 * information to safely perform transfer
1572 * negotiations... Controllers don't perform
1573 * any negotiation or tagged queuing until
1574 * after the first XPT_SET_TRAN_SETTINGS ccb is
1575 * received. So, on a new device, just retrieve
1576 * the user settings, and set them as the current
1577 * settings to set the device up.
1578 */
1579 proberequestdefaultnegotiation(periph);
1580 xpt_release_ccb(done_ccb);
1581
1582 /*
1583 * Perform a TUR to allow the controller to
1584 * perform any necessary transfer negotiation.
1585 */
1586 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION);
1587 xpt_schedule(periph, priority);
1588 goto out;
1589 }
1590 xpt_release_ccb(done_ccb);
1591 break;
1592 }
1593 case PROBE_TUR_FOR_NEGOTIATION:
1594 case PROBE_DV_EXIT:
1595 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1596 cam_periph_error(done_ccb, 0,
1597 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1598 }
1599 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1600 /* Don't wedge the queue */
1601 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1602 /*run_queue*/TRUE);
1603 }
1604 /*
1605 * Do Domain Validation for lun 0 on devices that claim
1606 * to support Synchronous Transfer modes.
1607 */
1608 if (softc->action == PROBE_TUR_FOR_NEGOTIATION
1609 && done_ccb->ccb_h.target_lun == 0
1610 && (path->device->inq_data.flags & SID_Sync) != 0
1611 && (path->device->flags & CAM_DEV_IN_DV) == 0) {
1612 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1613 ("Begin Domain Validation\n"));
1614 path->device->flags |= CAM_DEV_IN_DV;
1615 xpt_release_ccb(done_ccb);
1616 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1);
1617 xpt_schedule(periph, priority);
1618 goto out;
1619 }
1620 if (softc->action == PROBE_DV_EXIT) {
1621 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1622 ("Leave Domain Validation\n"));
1623 }
1624 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1625 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1626 xpt_acquire_device(path->device);
1627 }
1628 path->device->flags &=
1629 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
1630 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) {
1631 /* Inform the XPT that a new device has been found */
1632 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1633 xpt_action(done_ccb);
1634 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path,
1635 done_ccb);
1636 }
1637 PROBE_SET_ACTION(softc, PROBE_DONE);
1638 xpt_release_ccb(done_ccb);
1639 break;
1640 case PROBE_INQUIRY_BASIC_DV1:
1641 case PROBE_INQUIRY_BASIC_DV2:
1642 {
1643 struct scsi_inquiry_data *nbuf;
1644 struct ccb_scsiio *csio;
1645
1646 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1647 cam_periph_error(done_ccb, 0,
1648 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1649 }
1650 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1651 /* Don't wedge the queue */
1652 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1653 /*run_queue*/TRUE);
1654 }
1655 csio = &done_ccb->csio;
1656 nbuf = (struct scsi_inquiry_data *)csio->data_ptr;
1657 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) {
1658 xpt_print(path,
1659 "inquiry data fails comparison at DV%d step\n",
1660 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2);
1661 if (proberequestbackoff(periph, path->device)) {
1662 path->device->flags &= ~CAM_DEV_IN_DV;
1663 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION);
1664 } else {
1665 /* give up */
1666 PROBE_SET_ACTION(softc, PROBE_DV_EXIT);
1667 }
1668 free(nbuf, M_CAMXPT);
1669 xpt_release_ccb(done_ccb);
1670 xpt_schedule(periph, priority);
1671 goto out;
1672 }
1673 free(nbuf, M_CAMXPT);
1674 if (softc->action == PROBE_INQUIRY_BASIC_DV1) {
1675 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2);
1676 xpt_release_ccb(done_ccb);
1677 xpt_schedule(periph, priority);
1678 goto out;
1679 }
1680 if (softc->action == PROBE_INQUIRY_BASIC_DV2) {
1681 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1682 ("Leave Domain Validation Successfully\n"));
1683 }
1684 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1685 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1686 xpt_acquire_device(path->device);
1687 }
1688 path->device->flags &=
1689 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
1690 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) {
1691 /* Inform the XPT that a new device has been found */
1692 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1693 xpt_action(done_ccb);
1694 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path,
1695 done_ccb);
1696 }
1697 PROBE_SET_ACTION(softc, PROBE_DONE);
1698 xpt_release_ccb(done_ccb);
1699 break;
1700 }
1701 default:
1702 panic("probedone: invalid action state 0x%x\n", softc->action);
1703 }
1704 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
1705 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe);
1706 done_ccb->ccb_h.status = CAM_REQ_CMP;
1707 xpt_done(done_ccb);
1708 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) {
1709 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n"));
1710 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
1711 cam_release_devq(path, 0, 0, 0, FALSE);
1712 cam_periph_invalidate(periph);
1713 cam_periph_release_locked(periph);
1714 } else {
1715 probeschedule(periph);
1716 goto out;
1717 }
1718}
1719
1720static int
1721probe_strange_rpl_data(struct scsi_report_luns_data *rp, uint32_t maxlun)
1722{
1723 uint32_t idx;
1724 uint32_t nlun = MIN(maxlun, (scsi_4btoul(rp->length) / 8));
1725
1726 for (idx = 0; idx < nlun; idx++) {
1727 if (!CAM_CAN_GET_SIMPLE_LUN(rp, idx)) {
1728 return (-1);
1729 }
1730 }
1731 return (0);
1732}
1733
1734static void
1735probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new)
1736{
1737 struct cam_path *tp;
1738 struct scsi_report_luns_data *old;
1739 u_int idx1, idx2, nlun_old, nlun_new, this_lun;
1740 u_int8_t *ol, *nl;
1741
1742 if (path->target == NULL) {
1743 return;
1744 }
1745 if (path->target->luns == NULL) {
1746 path->target->luns = new;
1747 return;
1748 }
1749 old = path->target->luns;
1750 nlun_old = scsi_4btoul(old->length) / 8;
1751 nlun_new = scsi_4btoul(new->length) / 8;
1752
1753 /*
1754 * We are not going to assume sorted lists. Deal.
1755 */
1756 for (idx1 = 0; idx1 < nlun_old; idx1++) {
1757 ol = old->luns[idx1].lundata;
1758 for (idx2 = 0; idx2 < nlun_new; idx2++) {
1759 nl = new->luns[idx2].lundata;
1760 if (memcmp(nl, ol, 8) == 0) {
1761 break;
1762 }
1763 }
1764 if (idx2 < nlun_new) {
1765 continue;
1766 }
1767 /*
1768 * An 'old' item not in the 'new' list.
1769 * Nuke it. Except that if it is lun 0,
1770 * that would be what the probe state
1771 * machine is currently working on,
1772 * so we won't do that.
1773 *
1774 * We also cannot nuke it if it is
1775 * not in a lun format we understand.
1776 */
1777 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) {
1778 continue;
1779 }
1780 CAM_GET_SIMPLE_LUN(old, idx1, this_lun);
1781 if (this_lun == 0) {
1782 continue;
1783 }
1784 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path),
1785 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) {
1786 xpt_async(AC_LOST_DEVICE, tp, NULL);
1787 xpt_free_path(tp);
1788 }
1789 }
1790 free(old, M_CAMXPT);
1791 path->target->luns = new;
1792}
1793
1794static void
1795probecleanup(struct cam_periph *periph)
1796{
1797 free(periph->softc, M_CAMXPT);
1798}
1799
1800static void
1801scsi_find_quirk(struct cam_ed *device)
1802{
1803 struct scsi_quirk_entry *quirk;
1804 caddr_t match;
1805
1806 match = cam_quirkmatch((caddr_t)&device->inq_data,
1807 (caddr_t)scsi_quirk_table,
1808 sizeof(scsi_quirk_table) /
1809 sizeof(*scsi_quirk_table),
1810 sizeof(*scsi_quirk_table), scsi_inquiry_match);
1811
1812 if (match == NULL)
1813 panic("xpt_find_quirk: device didn't match wildcard entry!!");
1814
1815 quirk = (struct scsi_quirk_entry *)match;
1816 device->quirk = quirk;
1817 device->mintags = quirk->mintags;
1818 device->maxtags = quirk->maxtags;
1819}
1820
1821static int
1822sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS)
1823{
1824 int error, val;
1825
1826 val = cam_srch_hi;
1827 error = sysctl_handle_int(oidp, &val, 0, req);
1828 if (error != 0 || req->newptr == NULL)
1829 return (error);
1830 if (val == 0 || val == 1) {
1831 cam_srch_hi = val;
1832 return (0);
1833 } else {
1834 return (EINVAL);
1835 }
1836}
1837
1838typedef struct {
1839 union ccb *request_ccb;
1840 struct ccb_pathinq *cpi;
1841 int counter;
1842 int lunindex[0];
1843} scsi_scan_bus_info;
1844
1845/*
1846 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb.
1847 * As the scan progresses, scsi_scan_bus is used as the
1848 * callback on completion function.
1849 */
1850static void
1851scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb)
1852{
1853 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE,
1854 ("scsi_scan_bus\n"));
1855 switch (request_ccb->ccb_h.func_code) {
1856 case XPT_SCAN_BUS:
1857 case XPT_SCAN_TGT:
1858 {
1859 scsi_scan_bus_info *scan_info;
1860 union ccb *work_ccb, *reset_ccb;
1861 struct cam_path *path;
1862 u_int i;
1863 u_int low_target, max_target;
1864 u_int initiator_id;
1865
1866 /* Find out the characteristics of the bus */
1867 work_ccb = xpt_alloc_ccb_nowait();
1868 if (work_ccb == NULL) {
1869 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1870 xpt_done(request_ccb);
1871 return;
1872 }
1873 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path,
1874 request_ccb->ccb_h.pinfo.priority);
1875 work_ccb->ccb_h.func_code = XPT_PATH_INQ;
1876 xpt_action(work_ccb);
1877 if (work_ccb->ccb_h.status != CAM_REQ_CMP) {
1878 request_ccb->ccb_h.status = work_ccb->ccb_h.status;
1879 xpt_free_ccb(work_ccb);
1880 xpt_done(request_ccb);
1881 return;
1882 }
1883
1884 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) {
1885 /*
1886 * Can't scan the bus on an adapter that
1887 * cannot perform the initiator role.
1888 */
1889 request_ccb->ccb_h.status = CAM_REQ_CMP;
1890 xpt_free_ccb(work_ccb);
1891 xpt_done(request_ccb);
1892 return;
1893 }
1894
1895 /* We may need to reset bus first, if we haven't done it yet. */
1896 if ((work_ccb->cpi.hba_inquiry &
1897 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) &&
1898 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) &&
1899 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset)) {
1900 reset_ccb = xpt_alloc_ccb_nowait();
1901 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path,
1902 CAM_PRIORITY_NONE);
1903 reset_ccb->ccb_h.func_code = XPT_RESET_BUS;
1904 xpt_action(reset_ccb);
1905 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) {
1906 request_ccb->ccb_h.status = reset_ccb->ccb_h.status;
1907 xpt_free_ccb(reset_ccb);
1908 xpt_free_ccb(work_ccb);
1909 xpt_done(request_ccb);
1910 return;
1911 }
1912 xpt_free_ccb(reset_ccb);
1913 }
1914
1915 /* Save some state for use while we probe for devices */
1916 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) +
1917 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT);
1918 if (scan_info == NULL) {
1919 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1920 xpt_done(request_ccb);
1921 return;
1922 }
1923 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE,
1924 ("SCAN start for %p\n", scan_info));
1925 scan_info->request_ccb = request_ccb;
1926 scan_info->cpi = &work_ccb->cpi;
1927
1928 /* Cache on our stack so we can work asynchronously */
1929 max_target = scan_info->cpi->max_target;
1930 low_target = 0;
1931 initiator_id = scan_info->cpi->initiator_id;
1932
1933
1934 /*
1935 * We can scan all targets in parallel, or do it sequentially.
1936 */
1937
1938 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) {
1939 max_target = low_target = request_ccb->ccb_h.target_id;
1940 scan_info->counter = 0;
1941 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) {
1942 max_target = 0;
1943 scan_info->counter = 0;
1944 } else {
1945 scan_info->counter = scan_info->cpi->max_target + 1;
1946 if (scan_info->cpi->initiator_id < scan_info->counter) {
1947 scan_info->counter--;
1948 }
1949 }
1950
1951 for (i = low_target; i <= max_target; i++) {
1952 cam_status status;
1953 if (i == initiator_id)
1954 continue;
1955
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