1 /*-
2 * Implementation of the SCSI Transport
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs.
7 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions, and the following disclaimer,
15 * without modification, immediately at the beginning of the file.
16 * 2. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/param.h>
33 #include <sys/bus.h>
34 #include <sys/systm.h>
35 #include <sys/types.h>
36 #include <sys/malloc.h>
37 #include <sys/kernel.h>
38 #include <sys/time.h>
39 #include <sys/conf.h>
40 #include <sys/fcntl.h>
41 #include <sys/md5.h>
42 #include <sys/sbuf.h>
43 #include <sys/stdarg.h>
44
45 #include <sys/lock.h>
46 #include <sys/mutex.h>
47 #include <sys/sysctl.h>
48
49 #include <cam/cam.h>
50 #include <cam/cam_ccb.h>
51 #include <cam/cam_queue.h>
52 #include <cam/cam_periph.h>
53 #include <cam/cam_sim.h>
54 #include <cam/cam_xpt.h>
55 #include <cam/cam_xpt_sim.h>
56 #include <cam/cam_xpt_periph.h>
57 #include <cam/cam_xpt_internal.h>
58 #include <cam/cam_debug.h>
59
60 #include <cam/scsi/scsi_all.h>
61 #include <cam/scsi/scsi_message.h>
62 #include <cam/scsi/scsi_pass.h>
63
64 struct scsi_quirk_entry {
65 struct scsi_inquiry_pattern inq_pat;
66 uint8_t quirks;
67 #define CAM_QUIRK_NOLUNS 0x01
68 #define CAM_QUIRK_NOVPDS 0x02
69 #define CAM_QUIRK_HILUNS 0x04
70 #define CAM_QUIRK_NOHILUNS 0x08
71 #define CAM_QUIRK_NORPTLUNS 0x10
72 u_int mintags;
73 u_int maxtags;
74 };
75 #define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk))
76
77 static int cam_srch_hi = 0;
78 SYSCTL_INT(_kern_cam, OID_AUTO, cam_srch_hi, CTLFLAG_RWTUN,
79 &cam_srch_hi, 0, "Search above LUN 7 for SCSI3 and greater devices");
80
81 #define CAM_SCSI2_MAXLUN 8
82 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \
83 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
84 RPL_LUNDATA_ATYP_PERIPH) || \
85 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
86 RPL_LUNDATA_ATYP_FLAT))
87 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \
88 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \
89 RPL_LUNDATA_ATYP_PERIPH) { \
90 (lval) = (lp)->luns[(i)].lundata[1]; \
91 } else { \
92 (lval) = (lp)->luns[(i)].lundata[0]; \
93 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \
94 (lval) <<= 8; \
95 (lval) |= (lp)->luns[(i)].lundata[1]; \
96 }
97 #define CAM_GET_LUN(lp, i, lval) \
98 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \
99 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval);
100
101 /*
102 * If we're not quirked to search <= the first 8 luns
103 * and we are either quirked to search above lun 8,
104 * or we're > SCSI-2 and we've enabled hilun searching,
105 * or we're > SCSI-2 and the last lun was a success,
106 * we can look for luns above lun 8.
107 */
108 #define CAN_SRCH_HI_SPARSE(dv) \
109 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \
110 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \
111 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi)))
112
113 #define CAN_SRCH_HI_DENSE(dv) \
114 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \
115 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \
116 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2)))
117
118 static periph_init_t probe_periph_init;
119
120 static struct periph_driver probe_driver =
121 {
122 probe_periph_init, "probe",
123 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0,
124 CAM_PERIPH_DRV_EARLY
125 };
126
127 PERIPHDRIVER_DECLARE(probe, probe_driver);
128
129 typedef enum {
130 PROBE_TUR,
131 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */
132 PROBE_FULL_INQUIRY,
133 PROBE_REPORT_WLUNS,
134 PROBE_REPORT_LUNS,
135 PROBE_MODE_SENSE,
136 PROBE_SUPPORTED_VPD_LIST,
137 PROBE_DEVICE_ID,
138 PROBE_EXTENDED_INQUIRY,
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
148 static char *probe_action_text[] = {
149 "PROBE_TUR",
150 "PROBE_INQUIRY",
151 "PROBE_FULL_INQUIRY",
152 "PROBE_REPORT_WLUNS",
153 "PROBE_REPORT_LUNS",
154 "PROBE_MODE_SENSE",
155 "PROBE_SUPPORTED_VPD_LIST",
156 "PROBE_DEVICE_ID",
157 "PROBE_EXTENDED_INQUIRY",
158 "PROBE_SERIAL_NUM",
159 "PROBE_TUR_FOR_NEGOTIATION",
160 "PROBE_INQUIRY_BASIC_DV1",
161 "PROBE_INQUIRY_BASIC_DV2",
162 "PROBE_DV_EXIT",
163 "PROBE_DONE",
164 "PROBE_INVALID"
165 };
166
167 #define PROBE_SET_ACTION(softc, newaction) \
168 do { \
169 char **text; \
170 text = probe_action_text; \
171 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \
172 ("Probe %s to %s\n", text[(softc)->action], \
173 text[(newaction)])); \
174 (softc)->action = (newaction); \
175 } while(0)
176
177 typedef enum {
178 PROBE_INQUIRY_CKSUM = 0x01,
179 PROBE_NO_ANNOUNCE = 0x04,
180 PROBE_EXTLUN = 0x08
181 } probe_flags;
182
183 typedef struct {
184 TAILQ_HEAD(, ccb_hdr) request_ccbs;
185 probe_action action;
186 probe_flags flags;
187 MD5_CTX context;
188 uint8_t digest[16];
189 struct cam_periph *periph;
190 } probe_softc;
191
192 static const char quantum[] = "QUANTUM";
193 static const char sony[] = "SONY";
194 static const char west_digital[] = "WDIGTL";
195 static const char samsung[] = "SAMSUNG";
196 static const char seagate[] = "SEAGATE";
197 static const char microp[] = "MICROP";
198
199 static struct scsi_quirk_entry scsi_quirk_table[] =
200 {
201 {
202 /* Reports QUEUE FULL for temporary resource shortages */
203 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" },
204 /*quirks*/0, /*mintags*/24, /*maxtags*/32
205 },
206 {
207 /* Reports QUEUE FULL for temporary resource shortages */
208 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" },
209 /*quirks*/0, /*mintags*/24, /*maxtags*/32
210 },
211 {
212 /* Reports QUEUE FULL for temporary resource shortages */
213 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" },
214 /*quirks*/0, /*mintags*/24, /*maxtags*/32
215 },
216 {
217 /* Broken tagged queuing drive */
218 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" },
219 /*quirks*/0, /*mintags*/0, /*maxtags*/0
220 },
221 {
222 /* Broken tagged queuing drive */
223 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" },
224 /*quirks*/0, /*mintags*/0, /*maxtags*/0
225 },
226 {
227 /* Broken tagged queuing drive */
228 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" },
229 /*quirks*/0, /*mintags*/0, /*maxtags*/0
230 },
231 {
232 /*
233 * Unfortunately, the Quantum Atlas III has the same
234 * problem as the Atlas II drives above.
235 * Reported by: "Johan Granlund" <johan@granlund.nu>
236 *
237 * For future reference, the drive with the problem was:
238 * QUANTUM QM39100TD-SW N1B0
239 *
240 * It's possible that Quantum will fix the problem in later
241 * firmware revisions. If that happens, the quirk entry
242 * will need to be made specific to the firmware revisions
243 * with the problem.
244 *
245 */
246 /* Reports QUEUE FULL for temporary resource shortages */
247 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" },
248 /*quirks*/0, /*mintags*/24, /*maxtags*/32
249 },
250 {
251 /*
252 * 18 Gig Atlas III, same problem as the 9G version.
253 * Reported by: Andre Albsmeier
254 * <andre.albsmeier@mchp.siemens.de>
255 *
256 * For future reference, the drive with the problem was:
257 * QUANTUM QM318000TD-S N491
258 */
259 /* Reports QUEUE FULL for temporary resource shortages */
260 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" },
261 /*quirks*/0, /*mintags*/24, /*maxtags*/32
262 },
263 {
264 /*
265 * Broken tagged queuing drive
266 * Reported by: Bret Ford <bford@uop.cs.uop.edu>
267 * and: Martin Renters <martin@tdc.on.ca>
268 */
269 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" },
270 /*quirks*/0, /*mintags*/0, /*maxtags*/0
271 },
272 /*
273 * The Seagate Medalist Pro drives have very poor write
274 * performance with anything more than 2 tags.
275 *
276 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl>
277 * Drive: <SEAGATE ST36530N 1444>
278 *
279 * Reported by: Jeremy Lea <reg@shale.csir.co.za>
280 * Drive: <SEAGATE ST34520W 1281>
281 *
282 * No one has actually reported that the 9G version
283 * (ST39140*) of the Medalist Pro has the same problem, but
284 * we're assuming that it does because the 4G and 6.5G
285 * versions of the drive are broken.
286 */
287 {
288 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"},
289 /*quirks*/0, /*mintags*/2, /*maxtags*/2
290 },
291 {
292 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"},
293 /*quirks*/0, /*mintags*/2, /*maxtags*/2
294 },
295 {
296 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"},
297 /*quirks*/0, /*mintags*/2, /*maxtags*/2
298 },
299 {
300 /*
301 * Experiences command timeouts under load with a
302 * tag count higher than 55.
303 */
304 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"},
305 /*quirks*/0, /*mintags*/2, /*maxtags*/55
306 },
307 {
308 /*
309 * Slow when tagged queueing is enabled. Write performance
310 * steadily drops off with more and more concurrent
311 * transactions. Best sequential write performance with
312 * tagged queueing turned off and write caching turned on.
313 *
314 * PR: kern/10398
315 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp>
316 * Drive: DCAS-34330 w/ "S65A" firmware.
317 *
318 * The drive with the problem had the "S65A" firmware
319 * revision, and has also been reported (by Stephen J.
320 * Roznowski <sjr@home.net>) for a drive with the "S61A"
321 * firmware revision.
322 *
323 * Although no one has reported problems with the 2 gig
324 * version of the DCAS drive, the assumption is that it
325 * has the same problems as the 4 gig version. Therefore
326 * this quirk entries disables tagged queueing for all
327 * DCAS drives.
328 */
329 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" },
330 /*quirks*/0, /*mintags*/0, /*maxtags*/0
331 },
332 {
333 /* Broken tagged queuing drive */
334 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" },
335 /*quirks*/0, /*mintags*/0, /*maxtags*/0
336 },
337 {
338 /* Broken tagged queuing drive */
339 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" },
340 /*quirks*/0, /*mintags*/0, /*maxtags*/0
341 },
342 {
343 /* This does not support other than LUN 0 */
344 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" },
345 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
346 },
347 {
348 /*
349 * Broken tagged queuing drive.
350 * Submitted by:
351 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp>
352 * in PR kern/9535
353 */
354 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" },
355 /*quirks*/0, /*mintags*/0, /*maxtags*/0
356 },
357 {
358 /*
359 * Slow when tagged queueing is enabled. (1.5MB/sec versus
360 * 8MB/sec.)
361 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
362 * Best performance with these drives is achieved with
363 * tagged queueing turned off, and write caching turned on.
364 */
365 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" },
366 /*quirks*/0, /*mintags*/0, /*maxtags*/0
367 },
368 {
369 /*
370 * Slow when tagged queueing is enabled. (1.5MB/sec versus
371 * 8MB/sec.)
372 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
373 * Best performance with these drives is achieved with
374 * tagged queueing turned off, and write caching turned on.
375 */
376 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" },
377 /*quirks*/0, /*mintags*/0, /*maxtags*/0
378 },
379 {
380 /*
381 * Doesn't handle queue full condition correctly,
382 * so we need to limit maxtags to what the device
383 * can handle instead of determining this automatically.
384 */
385 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" },
386 /*quirks*/0, /*mintags*/2, /*maxtags*/32
387 },
388 {
389 /* Really only one LUN */
390 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" },
391 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
392 },
393 {
394 /* I can't believe we need a quirk for DPT volumes. */
395 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" },
396 CAM_QUIRK_NOLUNS,
397 /*mintags*/0, /*maxtags*/255
398 },
399 {
400 /*
401 * Many Sony CDROM drives don't like multi-LUN probing.
402 */
403 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" },
404 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
405 },
406 {
407 /*
408 * This drive doesn't like multiple LUN probing.
409 * Submitted by: Parag Patel <parag@cgt.com>
410 */
411 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" },
412 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
413 },
414 {
415 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" },
416 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
417 },
418 {
419 /*
420 * The 8200 doesn't like multi-lun probing, and probably
421 * don't like serial number requests either.
422 */
423 {
424 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE",
425 "EXB-8200*", "*"
426 },
427 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
428 },
429 {
430 /*
431 * Let's try the same as above, but for a drive that says
432 * it's an IPL-6860 but is actually an EXB 8200.
433 */
434 {
435 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE",
436 "IPL-6860*", "*"
437 },
438 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
439 },
440 {
441 /*
442 * These Hitachi drives don't like multi-lun probing.
443 * The PR submitter has a DK319H, but says that the Linux
444 * kernel has a similar work-around for the DK312 and DK314,
445 * so all DK31* drives are quirked here.
446 * PR: misc/18793
447 * Submitted by: Paul Haddad <paul@pth.com>
448 */
449 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" },
450 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
451 },
452 {
453 /*
454 * The Hitachi CJ series with J8A8 firmware apparently has
455 * problems with tagged commands.
456 * PR: 23536
457 * Reported by: amagai@nue.org
458 */
459 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" },
460 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
461 },
462 {
463 /*
464 * These are the large storage arrays.
465 * Submitted by: William Carrel <william.carrel@infospace.com>
466 */
467 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" },
468 CAM_QUIRK_HILUNS, 2, 1024
469 },
470 {
471 /*
472 * This old revision of the TDC3600 is also SCSI-1, and
473 * hangs upon serial number probing.
474 */
475 {
476 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
477 " TDC 3600", "U07:"
478 },
479 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0
480 },
481 {
482 /*
483 * Would repond to all LUNs if asked for.
484 */
485 {
486 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER",
487 "CP150", "*"
488 },
489 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
490 },
491 {
492 /*
493 * Would repond to all LUNs if asked for.
494 */
495 {
496 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
497 "96X2*", "*"
498 },
499 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
500 },
501 {
502 /* Submitted by: Matthew Dodd <winter@jurai.net> */
503 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" },
504 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
505 },
506 {
507 /* Submitted by: Matthew Dodd <winter@jurai.net> */
508 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" },
509 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
510 },
511 {
512 /* TeraSolutions special settings for TRC-22 RAID */
513 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" },
514 /*quirks*/0, /*mintags*/55, /*maxtags*/255
515 },
516 {
517 /* Veritas Storage Appliance */
518 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" },
519 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024
520 },
521 {
522 /*
523 * Would respond to all LUNs. Device type and removable
524 * flag are jumper-selectable.
525 */
526 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix",
527 "Tahiti 1", "*"
528 },
529 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
530 },
531 {
532 /* EasyRAID E5A aka. areca ARC-6010 */
533 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" },
534 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255
535 },
536 {
537 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" },
538 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
539 },
540 {
541 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" },
542 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255
543 },
544 {
545 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" },
546 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255
547 },
548 {
549 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" },
550 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255
551 },
552 {
553 /* Default tagged queuing parameters for all devices */
554 {
555 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED,
556 /*vendor*/"*", /*product*/"*", /*revision*/"*"
557 },
558 /*quirks*/0, /*mintags*/2, /*maxtags*/255
559 },
560 };
561
562 static cam_status proberegister(struct cam_periph *periph,
563 void *arg);
564 static void probeschedule(struct cam_periph *probe_periph);
565 static void probestart(struct cam_periph *periph, union ccb *start_ccb);
566 static void proberequestdefaultnegotiation(struct cam_periph *periph);
567 static int proberequestbackoff(struct cam_periph *periph,
568 struct cam_ed *device);
569 static void probedone(struct cam_periph *periph, union ccb *done_ccb);
570 static void probe_purge_old(struct cam_path *path,
571 struct scsi_report_luns_data *new,
572 probe_flags flags, bool is_wlun);
573 static void probecleanup(struct cam_periph *periph);
574 static void scsi_find_quirk(struct cam_ed *device);
575 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb);
576 static void scsi_scan_lun(struct cam_periph *periph,
577 struct cam_path *path, cam_flags flags,
578 union ccb *ccb);
579 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb);
580 static struct cam_ed *
581 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target,
582 lun_id_t lun_id);
583 static void scsi_devise_transport(struct cam_path *path);
584 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts,
585 struct cam_path *path,
586 int async_update);
587 static void scsi_toggle_tags(struct cam_path *path);
588 static void scsi_dev_async(uint32_t async_code,
589 struct cam_eb *bus,
590 struct cam_et *target,
591 struct cam_ed *device,
592 void *async_arg);
593 static void scsi_action(union ccb *start_ccb);
594 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb);
595 static void scsi_proto_announce_sbuf(struct cam_ed *device,
596 struct sbuf *sb);
597 static void scsi_proto_denounce_sbuf(struct cam_ed *device,
598 struct sbuf *sb);
599 static void scsi_proto_debug_out(union ccb *ccb);
600 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *);
601
602 static struct xpt_xport_ops scsi_xport_ops = {
603 .alloc_device = scsi_alloc_device,
604 .action = scsi_action,
605 .async = scsi_dev_async,
606 .announce_sbuf = scsi_announce_periph_sbuf,
607 };
608 #define SCSI_XPT_XPORT(x, X) \
609 static struct xpt_xport scsi_xport_ ## x = { \
610 .xport = XPORT_ ## X, \
611 .name = #x, \
612 .ops = &scsi_xport_ops, \
613 }; \
614 CAM_XPT_XPORT(scsi_xport_ ## x);
615
616 SCSI_XPT_XPORT(spi, SPI);
617 SCSI_XPT_XPORT(sas, SAS);
618 SCSI_XPT_XPORT(fc, FC);
619 SCSI_XPT_XPORT(usb, USB);
620 SCSI_XPT_XPORT(iscsi, ISCSI);
621 SCSI_XPT_XPORT(srp, SRP);
622 SCSI_XPT_XPORT(ppb, PPB);
623 SCSI_XPT_XPORT(ufshci, UFSHCI);
624
625 #undef SCSI_XPORT_XPORT
626
627 static struct xpt_proto_ops scsi_proto_ops = {
628 .announce_sbuf = scsi_proto_announce_sbuf,
629 .denounce_sbuf = scsi_proto_denounce_sbuf,
630 .debug_out = scsi_proto_debug_out,
631 };
632 static struct xpt_proto scsi_proto = {
633 .proto = PROTO_SCSI,
634 .name = "scsi",
635 .ops = &scsi_proto_ops,
636 };
637 CAM_XPT_PROTO(scsi_proto);
638
639 static void
probe_periph_init(void)640 probe_periph_init(void)
641 {
642 }
643
644 static cam_status
proberegister(struct cam_periph * periph,void * arg)645 proberegister(struct cam_periph *periph, void *arg)
646 {
647 union ccb *request_ccb; /* CCB representing the probe request */
648 probe_softc *softc;
649
650 request_ccb = (union ccb *)arg;
651 if (request_ccb == NULL) {
652 printf("proberegister: no probe CCB, can't register device\n");
653 return(CAM_REQ_CMP_ERR);
654 }
655
656 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT);
657
658 if (softc == NULL) {
659 printf("proberegister: Unable to probe new device. Unable to allocate softc\n");
660 return(CAM_REQ_CMP_ERR);
661 }
662 TAILQ_INIT(&softc->request_ccbs);
663 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h,
664 periph_links.tqe);
665 softc->flags = 0;
666 periph->softc = softc;
667 softc->periph = periph;
668 softc->action = PROBE_INVALID;
669 if (cam_periph_acquire(periph) != 0)
670 return (CAM_REQ_CMP_ERR);
671
672 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n"));
673 scsi_devise_transport(periph->path);
674
675 /*
676 * Ensure we've waited at least a bus settle
677 * delay before attempting to probe the device.
678 * For HBAs that don't do bus resets, this won't make a difference.
679 */
680 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset,
681 scsi_delay);
682 probeschedule(periph);
683 return(CAM_REQ_CMP);
684 }
685
686 static void
probeschedule(struct cam_periph * periph)687 probeschedule(struct cam_periph *periph)
688 {
689 struct ccb_pathinq cpi;
690 union ccb *ccb;
691 probe_softc *softc;
692
693 softc = (probe_softc *)periph->softc;
694 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
695
696 xpt_path_inq(&cpi, periph->path);
697
698 /*
699 * If a device has gone away and another device, or the same one,
700 * is back in the same place, it should have a unit attention
701 * condition pending. It will not report the unit attention in
702 * response to an inquiry, which may leave invalid transfer
703 * negotiations in effect. The TUR will reveal the unit attention
704 * condition. Only send the TUR for lun 0, since some devices
705 * will get confused by commands other than inquiry to non-existent
706 * luns. If you think a device has gone away start your scan from
707 * lun 0. This will insure that any bogus transfer settings are
708 * invalidated.
709 *
710 * If we haven't seen the device before and the controller supports
711 * some kind of transfer negotiation, negotiate with the first
712 * sent command if no bus reset was performed at startup. This
713 * ensures that the device is not confused by transfer negotiation
714 * settings left over by loader or BIOS action.
715 */
716 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
717 && (ccb->ccb_h.target_lun == 0)) {
718 PROBE_SET_ACTION(softc, PROBE_TUR);
719 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0
720 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) {
721 proberequestdefaultnegotiation(periph);
722 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
723 } else {
724 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
725 }
726
727 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE)
728 softc->flags |= PROBE_NO_ANNOUNCE;
729 else
730 softc->flags &= ~PROBE_NO_ANNOUNCE;
731
732 if (cpi.hba_misc & PIM_EXTLUNS)
733 softc->flags |= PROBE_EXTLUN;
734 else
735 softc->flags &= ~PROBE_EXTLUN;
736
737 xpt_schedule(periph, CAM_PRIORITY_XPT);
738 }
739
740 static void
probestart(struct cam_periph * periph,union ccb * start_ccb)741 probestart(struct cam_periph *periph, union ccb *start_ccb)
742 {
743 /* Probe the device that our peripheral driver points to */
744 struct ccb_scsiio *csio;
745 probe_softc *softc;
746
747 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n"));
748
749 softc = (probe_softc *)periph->softc;
750 csio = &start_ccb->csio;
751 again:
752
753 switch (softc->action) {
754 case PROBE_TUR:
755 case PROBE_TUR_FOR_NEGOTIATION:
756 case PROBE_DV_EXIT:
757 {
758 scsi_test_unit_ready(csio,
759 /*retries*/4,
760 probedone,
761 MSG_SIMPLE_Q_TAG,
762 SSD_FULL_SIZE,
763 /*timeout*/60000);
764 break;
765 }
766 case PROBE_INQUIRY:
767 case PROBE_FULL_INQUIRY:
768 {
769 u_int inquiry_len;
770 struct scsi_inquiry_data *inq_buf;
771
772 inq_buf = &periph->path->device->inq_data;
773
774 /*
775 * If the device is currently configured, we calculate an
776 * MD5 checksum of the inquiry data, and if the serial number
777 * length is greater than 0, add the serial number data
778 * into the checksum as well. Once the inquiry and the
779 * serial number check finish, we attempt to figure out
780 * whether we still have the same device.
781 */
782 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
783 softc->flags &= ~PROBE_INQUIRY_CKSUM;
784 } else if ((softc->flags & PROBE_INQUIRY_CKSUM) == 0) {
785 MD5Init(&softc->context);
786 MD5Update(&softc->context, (unsigned char *)inq_buf,
787 sizeof(struct scsi_inquiry_data));
788 if (periph->path->device->serial_num_len > 0) {
789 MD5Update(&softc->context,
790 periph->path->device->serial_num,
791 periph->path->device->serial_num_len);
792 }
793 MD5Final(softc->digest, &softc->context);
794 softc->flags |= PROBE_INQUIRY_CKSUM;
795 }
796
797 if (softc->action == PROBE_INQUIRY)
798 inquiry_len = SHORT_INQUIRY_LENGTH;
799 else
800 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf);
801
802 /*
803 * Some parallel SCSI devices fail to send an
804 * ignore wide residue message when dealing with
805 * odd length inquiry requests. Round up to be
806 * safe.
807 */
808 inquiry_len = roundup2(inquiry_len, 2);
809
810 scsi_inquiry(csio,
811 /*retries*/4,
812 probedone,
813 MSG_SIMPLE_Q_TAG,
814 (uint8_t *)inq_buf,
815 inquiry_len,
816 /*evpd*/FALSE,
817 /*page_code*/0,
818 SSD_MIN_SIZE,
819 /*timeout*/60 * 1000);
820 break;
821 }
822 case PROBE_REPORT_WLUNS:
823 {
824 void *rp;
825
826 rp = malloc(periph->path->target->rpl_size,
827 M_CAMXPT, M_NOWAIT | M_ZERO);
828 if (rp == NULL) {
829 xpt_print(periph->path,
830 "Unable to alloc report wluns storage\n");
831 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS);
832 goto again;
833 }
834 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG,
835 RPL_REPORT_WELLKNOWN, rp, periph->path->target->rpl_size,
836 SSD_FULL_SIZE, 60000);
837 break;
838 }
839 case PROBE_REPORT_LUNS:
840 {
841 void *rp;
842
843 rp = malloc(periph->path->target->rpl_size,
844 M_CAMXPT, M_NOWAIT | M_ZERO);
845 if (rp == NULL) {
846 struct scsi_inquiry_data *inq_buf;
847 inq_buf = &periph->path->device->inq_data;
848 xpt_print(periph->path,
849 "Unable to alloc report luns storage\n");
850 if (INQ_DATA_TQ_ENABLED(inq_buf))
851 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE);
852 else
853 PROBE_SET_ACTION(softc,
854 PROBE_SUPPORTED_VPD_LIST);
855 goto again;
856 }
857 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG,
858 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size,
859 SSD_FULL_SIZE, 60000);
860 break;
861 }
862 case PROBE_MODE_SENSE:
863 {
864 void *mode_buf;
865 int mode_buf_len;
866
867 mode_buf_len = sizeof(struct scsi_mode_header_6)
868 + sizeof(struct scsi_mode_blk_desc)
869 + sizeof(struct scsi_control_page);
870 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT);
871 if (mode_buf != NULL) {
872 scsi_mode_sense(csio,
873 /*retries*/4,
874 probedone,
875 MSG_SIMPLE_Q_TAG,
876 /*dbd*/FALSE,
877 SMS_PAGE_CTRL_CURRENT,
878 SMS_CONTROL_MODE_PAGE,
879 mode_buf,
880 mode_buf_len,
881 SSD_FULL_SIZE,
882 /*timeout*/60000);
883 break;
884 }
885 xpt_print(periph->path,
886 "Unable to mode sense control page - malloc failure\n");
887 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST);
888 }
889 /* FALLTHROUGH */
890 case PROBE_SUPPORTED_VPD_LIST:
891 {
892 struct scsi_vpd_supported_page_list *vpd_list;
893 struct cam_ed *device;
894
895 vpd_list = NULL;
896 device = periph->path->device;
897
898 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0)
899 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT,
900 M_NOWAIT | M_ZERO);
901
902 if (vpd_list != NULL) {
903 scsi_inquiry(csio,
904 /*retries*/4,
905 probedone,
906 MSG_SIMPLE_Q_TAG,
907 (uint8_t *)vpd_list,
908 sizeof(*vpd_list),
909 /*evpd*/TRUE,
910 SVPD_SUPPORTED_PAGE_LIST,
911 SSD_MIN_SIZE,
912 /*timeout*/60 * 1000);
913 break;
914 }
915 done:
916 /*
917 * We'll have to do without, let our probedone
918 * routine finish up for us.
919 */
920 start_ccb->csio.data_ptr = NULL;
921 cam_freeze_devq(periph->path);
922 cam_periph_doacquire(periph);
923 probedone(periph, start_ccb);
924 return;
925 }
926 case PROBE_DEVICE_ID:
927 {
928 struct scsi_vpd_device_id *devid;
929
930 devid = NULL;
931 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID))
932 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT,
933 M_NOWAIT | M_ZERO);
934
935 if (devid != NULL) {
936 scsi_inquiry(csio,
937 /*retries*/4,
938 probedone,
939 MSG_SIMPLE_Q_TAG,
940 (uint8_t *)devid,
941 SVPD_DEVICE_ID_MAX_SIZE,
942 /*evpd*/TRUE,
943 SVPD_DEVICE_ID,
944 SSD_MIN_SIZE,
945 /*timeout*/60 * 1000);
946 break;
947 }
948 goto done;
949 }
950 case PROBE_EXTENDED_INQUIRY:
951 {
952 struct scsi_vpd_extended_inquiry_data *ext_inq;
953
954 ext_inq = NULL;
955 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA))
956 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT,
957 M_NOWAIT | M_ZERO);
958
959 if (ext_inq != NULL) {
960 scsi_inquiry(csio,
961 /*retries*/4,
962 probedone,
963 MSG_SIMPLE_Q_TAG,
964 (uint8_t *)ext_inq,
965 sizeof(*ext_inq),
966 /*evpd*/TRUE,
967 SVPD_EXTENDED_INQUIRY_DATA,
968 SSD_MIN_SIZE,
969 /*timeout*/60 * 1000);
970 break;
971 }
972 /*
973 * We'll have to do without, let our probedone
974 * routine finish up for us.
975 */
976 goto done;
977 }
978 case PROBE_SERIAL_NUM:
979 {
980 struct scsi_vpd_unit_serial_number *serial_buf;
981 struct cam_ed* device;
982
983 serial_buf = NULL;
984 device = periph->path->device;
985 if (device->serial_num != NULL) {
986 free(device->serial_num, M_CAMXPT);
987 device->serial_num = NULL;
988 device->serial_num_len = 0;
989 }
990
991 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER))
992 serial_buf = (struct scsi_vpd_unit_serial_number *)
993 malloc(sizeof(*serial_buf), M_CAMXPT,
994 M_NOWAIT|M_ZERO);
995
996 if (serial_buf != NULL) {
997 scsi_inquiry(csio,
998 /*retries*/4,
999 probedone,
1000 MSG_SIMPLE_Q_TAG,
1001 (uint8_t *)serial_buf,
1002 sizeof(*serial_buf),
1003 /*evpd*/TRUE,
1004 SVPD_UNIT_SERIAL_NUMBER,
1005 SSD_MIN_SIZE,
1006 /*timeout*/60 * 1000);
1007 break;
1008 }
1009 goto done;
1010 }
1011 case PROBE_INQUIRY_BASIC_DV1:
1012 case PROBE_INQUIRY_BASIC_DV2:
1013 {
1014 u_int inquiry_len;
1015 struct scsi_inquiry_data *inq_buf;
1016
1017 inq_buf = &periph->path->device->inq_data;
1018 inquiry_len = roundup2(SID_ADDITIONAL_LENGTH(inq_buf), 2);
1019 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT);
1020 if (inq_buf == NULL) {
1021 xpt_print(periph->path,
1022 "malloc failure- skipping Basic Domain Validation\n");
1023 PROBE_SET_ACTION(softc, PROBE_DV_EXIT);
1024 scsi_test_unit_ready(csio,
1025 /*retries*/4,
1026 probedone,
1027 MSG_SIMPLE_Q_TAG,
1028 SSD_FULL_SIZE,
1029 /*timeout*/60000);
1030 break;
1031 }
1032
1033 scsi_inquiry(csio,
1034 /*retries*/4,
1035 probedone,
1036 MSG_SIMPLE_Q_TAG,
1037 (uint8_t *)inq_buf,
1038 inquiry_len,
1039 /*evpd*/FALSE,
1040 /*page_code*/0,
1041 SSD_MIN_SIZE,
1042 /*timeout*/60 * 1000);
1043 break;
1044 }
1045 default:
1046 panic("probestart: invalid action state 0x%x\n", softc->action);
1047 }
1048 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1049 cam_periph_doacquire(periph);
1050 xpt_action(start_ccb);
1051 }
1052
1053 static void
proberequestdefaultnegotiation(struct cam_periph * periph)1054 proberequestdefaultnegotiation(struct cam_periph *periph)
1055 {
1056 struct ccb_trans_settings cts;
1057
1058 memset(&cts, 0, sizeof(cts));
1059 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1060 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1061 cts.type = CTS_TYPE_USER_SETTINGS;
1062 xpt_action((union ccb *)&cts);
1063 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) {
1064 return;
1065 }
1066 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1067 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1068 xpt_action((union ccb *)&cts);
1069 }
1070
1071 /*
1072 * Backoff Negotiation Code- only pertinent for SPI devices.
1073 */
1074 static int
proberequestbackoff(struct cam_periph * periph,struct cam_ed * device)1075 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device)
1076 {
1077 struct ccb_trans_settings cts;
1078 struct ccb_trans_settings_spi *spi;
1079
1080 memset(&cts, 0, sizeof (cts));
1081 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1082 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1083 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1084 xpt_action((union ccb *)&cts);
1085 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) {
1086 if (bootverbose) {
1087 xpt_print(periph->path,
1088 "failed to get current device settings\n");
1089 }
1090 return (0);
1091 }
1092 if (cts.transport != XPORT_SPI) {
1093 if (bootverbose) {
1094 xpt_print(periph->path, "not SPI transport\n");
1095 }
1096 return (0);
1097 }
1098 spi = &cts.xport_specific.spi;
1099
1100 /*
1101 * We cannot renegotiate sync rate if we don't have one.
1102 */
1103 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) {
1104 if (bootverbose) {
1105 xpt_print(periph->path, "no sync rate known\n");
1106 }
1107 return (0);
1108 }
1109
1110 /*
1111 * We'll assert that we don't have to touch PPR options- the
1112 * SIM will see what we do with period and offset and adjust
1113 * the PPR options as appropriate.
1114 */
1115
1116 /*
1117 * A sync rate with unknown or zero offset is nonsensical.
1118 * A sync period of zero means Async.
1119 */
1120 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0
1121 || spi->sync_offset == 0 || spi->sync_period == 0) {
1122 if (bootverbose) {
1123 xpt_print(periph->path, "no sync rate available\n");
1124 }
1125 return (0);
1126 }
1127
1128 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) {
1129 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1130 ("hit async: giving up on DV\n"));
1131 return (0);
1132 }
1133
1134 /*
1135 * Jump sync_period up by one, but stop at 5MHz and fall back to Async.
1136 * We don't try to remember 'last' settings to see if the SIM actually
1137 * gets into the speed we want to set. We check on the SIM telling
1138 * us that a requested speed is bad, but otherwise don't try and
1139 * check the speed due to the asynchronous and handshake nature
1140 * of speed setting.
1141 */
1142 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET;
1143 for (;;) {
1144 spi->sync_period++;
1145 if (spi->sync_period >= 0xf) {
1146 spi->sync_period = 0;
1147 spi->sync_offset = 0;
1148 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1149 ("setting to async for DV\n"));
1150 /*
1151 * Once we hit async, we don't want to try
1152 * any more settings.
1153 */
1154 device->flags |= CAM_DEV_DV_HIT_BOTTOM;
1155 } else if (bootverbose) {
1156 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1157 ("DV: period 0x%x\n", spi->sync_period));
1158 printf("setting period to 0x%x\n", spi->sync_period);
1159 }
1160 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
1161 cts.type = CTS_TYPE_CURRENT_SETTINGS;
1162 xpt_action((union ccb *)&cts);
1163 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) {
1164 break;
1165 }
1166 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1167 ("DV: failed to set period 0x%x\n", spi->sync_period));
1168 if (spi->sync_period == 0) {
1169 return (0);
1170 }
1171 }
1172 return (1);
1173 }
1174
1175 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP)
1176
1177 static void
probedone(struct cam_periph * periph,union ccb * done_ccb)1178 probedone(struct cam_periph *periph, union ccb *done_ccb)
1179 {
1180 probe_softc *softc;
1181 struct cam_path *path;
1182 struct scsi_inquiry_data *inq_buf;
1183 uint32_t priority;
1184 struct ccb_pathinq cpi;
1185
1186 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n"));
1187
1188 softc = (probe_softc *)periph->softc;
1189 path = done_ccb->ccb_h.path;
1190 priority = done_ccb->ccb_h.pinfo.priority;
1191 cam_periph_assert(periph, MA_OWNED);
1192 xpt_path_inq(&cpi, path);
1193
1194 switch (softc->action) {
1195 case PROBE_TUR:
1196 {
1197 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) {
1198 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) ==
1199 ERESTART) {
1200 outr:
1201 /* Drop freeze taken due to CAM_DEV_QFREEZE */
1202 cam_release_devq(path, 0, 0, 0, FALSE);
1203 return;
1204 }
1205 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1206 /* Don't wedge the queue */
1207 xpt_release_devq(done_ccb->ccb_h.path,
1208 /*count*/1,
1209 /*run_queue*/TRUE);
1210 }
1211 PROBE_SET_ACTION(softc, PROBE_INQUIRY);
1212 xpt_release_ccb(done_ccb);
1213 xpt_schedule(periph, priority);
1214 out:
1215 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */
1216 cam_release_devq(path, 0, 0, 0, FALSE);
1217 cam_periph_release_locked(periph);
1218 return;
1219 }
1220 case PROBE_INQUIRY:
1221 case PROBE_FULL_INQUIRY:
1222 {
1223 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) {
1224 uint8_t periph_qual;
1225
1226 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID;
1227 scsi_find_quirk(path->device);
1228 inq_buf = &path->device->inq_data;
1229
1230 periph_qual = SID_QUAL(inq_buf);
1231
1232 if (periph_qual == SID_QUAL_LU_CONNECTED ||
1233 periph_qual == SID_QUAL_LU_OFFLINE) {
1234 /*
1235 * We conservatively request only
1236 * SHORT_INQUIRY_LEN bytes of inquiry
1237 * information during our first try
1238 * at sending an INQUIRY. If the device
1239 * has more information to give,
1240 * perform a second request specifying
1241 * the amount of information the device
1242 * is willing to give.
1243 */
1244 if (softc->action == PROBE_INQUIRY
1245 && SID_ADDITIONAL_LENGTH(inq_buf)
1246 > SHORT_INQUIRY_LENGTH) {
1247 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY);
1248 xpt_release_ccb(done_ccb);
1249 xpt_schedule(periph, priority);
1250 goto out;
1251 }
1252
1253 scsi_devise_transport(path);
1254
1255 if (path->device->lun_id == 0 &&
1256 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 &&
1257 (SCSI_QUIRK(path->device)->quirks &
1258 CAM_QUIRK_NORPTLUNS) == 0) {
1259 if (cpi.hba_misc & PIM_WLUNS)
1260 PROBE_SET_ACTION(softc, PROBE_REPORT_WLUNS);
1261 else
1262 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS);
1263 /*
1264 * Start with room for *one* lun.
1265 */
1266 periph->path->target->rpl_size = 16;
1267 } else if (INQ_DATA_TQ_ENABLED(inq_buf))
1268 PROBE_SET_ACTION(softc,
1269 PROBE_MODE_SENSE);
1270 else
1271 PROBE_SET_ACTION(softc,
1272 PROBE_SUPPORTED_VPD_LIST);
1273
1274 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1275 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1276 xpt_acquire_device(path->device);
1277 }
1278 xpt_release_ccb(done_ccb);
1279 xpt_schedule(periph, priority);
1280 goto out;
1281 } else if (path->device->lun_id == 0 &&
1282 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 &&
1283 (SCSI_QUIRK(path->device)->quirks &
1284 CAM_QUIRK_NORPTLUNS) == 0) {
1285 if (cpi.hba_misc & PIM_WLUNS)
1286 PROBE_SET_ACTION(softc, PROBE_REPORT_WLUNS);
1287 else
1288 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS);
1289 periph->path->target->rpl_size = 16;
1290 xpt_release_ccb(done_ccb);
1291 xpt_schedule(periph, priority);
1292 goto out;
1293 }
1294 } else if (cam_periph_error(done_ccb, 0,
1295 done_ccb->ccb_h.target_lun > 0
1296 ? SF_RETRY_UA|SF_QUIET_IR
1297 : SF_RETRY_UA) == ERESTART) {
1298 goto outr;
1299 } else {
1300 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1301 /* Don't wedge the queue */
1302 xpt_release_devq(done_ccb->ccb_h.path,
1303 /*count*/1, /*run_queue*/TRUE);
1304 }
1305 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID;
1306 }
1307 /*
1308 * If we get to this point, we got an error status back
1309 * from the inquiry and the error status doesn't require
1310 * automatically retrying the command. Therefore, the
1311 * inquiry failed. If we had inquiry information before
1312 * for this device, but this latest inquiry command failed,
1313 * the device has probably gone away. If this device isn't
1314 * already marked unconfigured, notify the peripheral
1315 * drivers that this device is no more.
1316 */
1317 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0)
1318 /* Send the async notification. */
1319 xpt_async(AC_LOST_DEVICE, path, NULL);
1320 PROBE_SET_ACTION(softc, PROBE_INVALID);
1321
1322 xpt_release_ccb(done_ccb);
1323 break;
1324 }
1325 case PROBE_REPORT_WLUNS:
1326 case PROBE_REPORT_LUNS:
1327 {
1328 struct ccb_scsiio *csio;
1329 struct scsi_report_luns_data *lp;
1330 u_int nlun, maxlun;
1331 bool is_wlun = softc->action == PROBE_REPORT_WLUNS;
1332
1333 csio = &done_ccb->csio;
1334
1335 lp = (struct scsi_report_luns_data *)csio->data_ptr;
1336 nlun = scsi_4btoul(lp->length) / 8;
1337 maxlun = (csio->dxfer_len / 8) - 1;
1338
1339 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) {
1340 if (cam_periph_error(done_ccb, 0,
1341 done_ccb->ccb_h.target_lun > 0 ?
1342 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) ==
1343 ERESTART) {
1344 goto outr;
1345 }
1346 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1347 xpt_release_devq(done_ccb->ccb_h.path, 1,
1348 TRUE);
1349 }
1350 free(lp, M_CAMXPT);
1351 lp = NULL;
1352 } else if (nlun > maxlun) {
1353 /*
1354 * Reallocate and retry to cover all luns
1355 */
1356 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1357 ("Probe: reallocating REPORT_LUNS for %u luns\n",
1358 nlun));
1359 free(lp, M_CAMXPT);
1360 path->target->rpl_size = (nlun << 3) + 8;
1361 xpt_release_ccb(done_ccb);
1362 xpt_schedule(periph, priority);
1363 goto out;
1364 } else if (nlun == 0) {
1365 /*
1366 * If there don't appear to be any luns, bail.
1367 */
1368 free(lp, M_CAMXPT);
1369 lp = NULL;
1370 } else {
1371 lun_id_t lun;
1372 int idx;
1373
1374 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1375 ("Probe: %u lun(s) reported\n", nlun));
1376
1377 CAM_GET_LUN(lp, 0, lun);
1378 /*
1379 * If the first lun is not lun 0, then either there
1380 * is no lun 0 in the list, or the list is unsorted.
1381 */
1382 if (lun != 0) {
1383 for (idx = 0; idx < nlun; idx++) {
1384 CAM_GET_LUN(lp, idx, lun);
1385 if (lun == 0) {
1386 break;
1387 }
1388 }
1389 if (idx != nlun) {
1390 uint8_t tlun[8];
1391 memcpy(tlun,
1392 lp->luns[0].lundata, 8);
1393 memcpy(lp->luns[0].lundata,
1394 lp->luns[idx].lundata, 8);
1395 memcpy(lp->luns[idx].lundata,
1396 tlun, 8);
1397 CAM_DEBUG(path, CAM_DEBUG_PROBE,
1398 ("lun 0 in position %u\n", idx));
1399 }
1400 }
1401 /*
1402 * If we have an old lun list, We can either
1403 * retest luns that appear to have been dropped,
1404 * or just nuke them. We'll opt for the latter.
1405 * This function will also install the new list
1406 * in the target structure.
1407 */
1408 probe_purge_old(path, lp, softc->flags, is_wlun);
1409 lp = NULL;
1410 }
1411 /* The processing above should either exit via a `goto
1412 * out` or leave the `lp` variable `NULL` and (if
1413 * applicable) `free()` the storage to which it had
1414 * pointed. Assert here that is the case.
1415 */
1416 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__));
1417 inq_buf = &path->device->inq_data;
1418 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID &&
1419 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED ||
1420 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) {
1421 if (is_wlun)
1422 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS);
1423 else if (INQ_DATA_TQ_ENABLED(inq_buf))
1424 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE);
1425 else
1426 PROBE_SET_ACTION(softc,
1427 PROBE_SUPPORTED_VPD_LIST);
1428 xpt_release_ccb(done_ccb);
1429 xpt_schedule(periph, priority);
1430 goto out;
1431 }
1432 PROBE_SET_ACTION(softc, PROBE_INVALID);
1433 xpt_release_ccb(done_ccb);
1434 break;
1435 }
1436 case PROBE_MODE_SENSE:
1437 {
1438 struct ccb_scsiio *csio;
1439 struct scsi_mode_header_6 *mode_hdr;
1440
1441 csio = &done_ccb->csio;
1442 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr;
1443 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) {
1444 struct scsi_control_page *page;
1445 uint8_t *offset;
1446
1447 offset = ((uint8_t *)&mode_hdr[1])
1448 + mode_hdr->blk_desc_len;
1449 page = (struct scsi_control_page *)offset;
1450 path->device->queue_flags = page->queue_flags;
1451 } else if (cam_periph_error(done_ccb, 0,
1452 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) {
1453 goto outr;
1454 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1455 /* Don't wedge the queue */
1456 xpt_release_devq(done_ccb->ccb_h.path,
1457 /*count*/1, /*run_queue*/TRUE);
1458 }
1459 xpt_release_ccb(done_ccb);
1460 free(mode_hdr, M_CAMXPT);
1461 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST);
1462 xpt_schedule(periph, priority);
1463 goto out;
1464 }
1465 case PROBE_SUPPORTED_VPD_LIST:
1466 {
1467 struct ccb_scsiio *csio;
1468 struct scsi_vpd_supported_page_list *page_list;
1469
1470 csio = &done_ccb->csio;
1471 page_list =
1472 (struct scsi_vpd_supported_page_list *)csio->data_ptr;
1473
1474 if (path->device->supported_vpds != NULL) {
1475 free(path->device->supported_vpds, M_CAMXPT);
1476 path->device->supported_vpds = NULL;
1477 path->device->supported_vpds_len = 0;
1478 }
1479
1480 if (page_list == NULL) {
1481 /*
1482 * Don't process the command as it was never sent
1483 */
1484 } else if (CCB_COMPLETED_OK(csio->ccb_h)) {
1485 /* Got vpd list */
1486 path->device->supported_vpds_len = page_list->length +
1487 SVPD_SUPPORTED_PAGES_HDR_LEN;
1488 path->device->supported_vpds = (uint8_t *)page_list;
1489 xpt_release_ccb(done_ccb);
1490 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID);
1491 xpt_schedule(periph, priority);
1492 goto out;
1493 } else if (cam_periph_error(done_ccb, 0,
1494 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) {
1495 goto outr;
1496 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1497 /* Don't wedge the queue */
1498 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1499 /*run_queue*/TRUE);
1500 }
1501
1502 if (page_list)
1503 free(page_list, M_CAMXPT);
1504 /* No VPDs available, skip to device check. */
1505 csio->data_ptr = NULL;
1506 goto probe_device_check;
1507 }
1508 case PROBE_DEVICE_ID:
1509 {
1510 struct scsi_vpd_device_id *devid;
1511 struct ccb_scsiio *csio;
1512 uint32_t length = 0;
1513
1514 csio = &done_ccb->csio;
1515 devid = (struct scsi_vpd_device_id *)csio->data_ptr;
1516
1517 /* Clean up from previous instance of this device */
1518 if (path->device->device_id != NULL) {
1519 path->device->device_id_len = 0;
1520 free(path->device->device_id, M_CAMXPT);
1521 path->device->device_id = NULL;
1522 }
1523
1524 if (devid == NULL) {
1525 /* Don't process the command as it was never sent */
1526 } else if (CCB_COMPLETED_OK(csio->ccb_h)) {
1527 length = scsi_2btoul(devid->length);
1528 if (length != 0) {
1529 /*
1530 * NB: device_id_len is actual response
1531 * size, not buffer size.
1532 */
1533 path->device->device_id_len = length +
1534 SVPD_DEVICE_ID_HDR_LEN;
1535 path->device->device_id = (uint8_t *)devid;
1536 }
1537 } else if (cam_periph_error(done_ccb, 0,
1538 SF_RETRY_UA) == ERESTART) {
1539 goto outr;
1540 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1541 /* Don't wedge the queue */
1542 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1543 /*run_queue*/TRUE);
1544 }
1545
1546 /* Free the device id space if we don't use it */
1547 if (devid && length == 0)
1548 free(devid, M_CAMXPT);
1549 xpt_release_ccb(done_ccb);
1550 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY);
1551 xpt_schedule(periph, priority);
1552 goto out;
1553 }
1554 case PROBE_EXTENDED_INQUIRY: {
1555 struct scsi_vpd_extended_inquiry_data *ext_inq;
1556 struct ccb_scsiio *csio;
1557 int32_t length = 0;
1558
1559 csio = &done_ccb->csio;
1560 ext_inq = (struct scsi_vpd_extended_inquiry_data *)
1561 csio->data_ptr;
1562 if (path->device->ext_inq != NULL) {
1563 path->device->ext_inq_len = 0;
1564 free(path->device->ext_inq, M_CAMXPT);
1565 path->device->ext_inq = NULL;
1566 }
1567
1568 if (ext_inq == NULL) {
1569 /* Don't process the command as it was never sent */
1570 } else if (CCB_COMPLETED_OK(csio->ccb_h)) {
1571 length = scsi_2btoul(ext_inq->page_length) +
1572 __offsetof(struct scsi_vpd_extended_inquiry_data,
1573 flags1);
1574 length = min(length, sizeof(*ext_inq));
1575 length -= csio->resid;
1576 if (length > 0) {
1577 path->device->ext_inq_len = length;
1578 path->device->ext_inq = (uint8_t *)ext_inq;
1579 }
1580 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) ==
1581 ERESTART) {
1582 goto outr;
1583 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1584 /* Don't wedge the queue */
1585 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1586 /*run_queue*/TRUE);
1587 }
1588
1589 /* Free the device id space if we don't use it */
1590 if (ext_inq && length <= 0)
1591 free(ext_inq, M_CAMXPT);
1592 xpt_release_ccb(done_ccb);
1593 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM);
1594 xpt_schedule(periph, priority);
1595 goto out;
1596 }
1597
1598 probe_device_check:
1599 case PROBE_SERIAL_NUM:
1600 {
1601 struct ccb_scsiio *csio;
1602 struct scsi_vpd_unit_serial_number *serial_buf;
1603 uint32_t priority;
1604 int changed;
1605 int have_serialnum;
1606
1607 changed = 1;
1608 have_serialnum = 0;
1609 csio = &done_ccb->csio;
1610 priority = done_ccb->ccb_h.pinfo.priority;
1611 serial_buf =
1612 (struct scsi_vpd_unit_serial_number *)csio->data_ptr;
1613
1614 if (serial_buf == NULL) {
1615 /*
1616 * Don't process the command as it was never sent
1617 */
1618 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP
1619 && (serial_buf->length > 0)) {
1620 have_serialnum = 1;
1621 path->device->serial_num =
1622 (uint8_t *)malloc((serial_buf->length + 1),
1623 M_CAMXPT, M_NOWAIT);
1624 if (path->device->serial_num != NULL) {
1625 int start, slen;
1626
1627 start = strspn(serial_buf->serial_num, " ");
1628 slen = serial_buf->length - start;
1629 if (slen <= 0) {
1630 /*
1631 * SPC5r05 says that an all-space serial
1632 * number means no product serial number
1633 * is available
1634 */
1635 slen = 0;
1636 }
1637 /*
1638 * In apparent violation of the spec, some
1639 * devices pad their serial numbers with
1640 * trailing spaces. Remove them.
1641 */
1642 while (slen > 0 &&
1643 serial_buf->serial_num[start + slen - 1] == ' ')
1644 slen--;
1645 memcpy(path->device->serial_num,
1646 &serial_buf->serial_num[start], slen);
1647 path->device->serial_num_len = slen;
1648 path->device->serial_num[slen] = '\0';
1649 }
1650 } else if (cam_periph_error(done_ccb, 0,
1651 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) {
1652 goto outr;
1653 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1654 /* Don't wedge the queue */
1655 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1656 /*run_queue*/TRUE);
1657 }
1658
1659 /*
1660 * Let's see if we have seen this device before.
1661 */
1662 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) {
1663 MD5_CTX context;
1664 uint8_t digest[16];
1665
1666 MD5Init(&context);
1667
1668 MD5Update(&context,
1669 (unsigned char *)&path->device->inq_data,
1670 sizeof(struct scsi_inquiry_data));
1671
1672 if (have_serialnum)
1673 MD5Update(&context, path->device->serial_num,
1674 path->device->serial_num_len);
1675
1676 MD5Final(digest, &context);
1677 if (bcmp(softc->digest, digest, 16) == 0)
1678 changed = 0;
1679
1680 /*
1681 * XXX Do we need to do a TUR in order to ensure
1682 * that the device really hasn't changed???
1683 */
1684 if ((changed != 0)
1685 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0))
1686 xpt_async(AC_LOST_DEVICE, path, NULL);
1687 }
1688 if (serial_buf != NULL)
1689 free(serial_buf, M_CAMXPT);
1690
1691 if (changed != 0) {
1692 /*
1693 * Now that we have all the necessary
1694 * information to safely perform transfer
1695 * negotiations... Controllers don't perform
1696 * any negotiation or tagged queuing until
1697 * after the first XPT_SET_TRAN_SETTINGS ccb is
1698 * received. So, on a new device, just retrieve
1699 * the user settings, and set them as the current
1700 * settings to set the device up.
1701 */
1702 proberequestdefaultnegotiation(periph);
1703 xpt_release_ccb(done_ccb);
1704
1705 /*
1706 * Perform a TUR to allow the controller to
1707 * perform any necessary transfer negotiation.
1708 */
1709 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION);
1710 xpt_schedule(periph, priority);
1711 goto out;
1712 }
1713 xpt_release_ccb(done_ccb);
1714 break;
1715 }
1716 case PROBE_TUR_FOR_NEGOTIATION:
1717 case PROBE_DV_EXIT:
1718 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) {
1719 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT |
1720 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART)
1721 goto outr;
1722 }
1723 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1724 /* Don't wedge the queue */
1725 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1726 /*run_queue*/TRUE);
1727 }
1728 /*
1729 * Do Domain Validation for lun 0 on devices that claim
1730 * to support Synchronous Transfer modes.
1731 */
1732 if (softc->action == PROBE_TUR_FOR_NEGOTIATION
1733 && done_ccb->ccb_h.target_lun == 0
1734 && (path->device->inq_data.flags & SID_Sync) != 0
1735 && (path->device->flags & CAM_DEV_IN_DV) == 0) {
1736 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1737 ("Begin Domain Validation\n"));
1738 path->device->flags |= CAM_DEV_IN_DV;
1739 xpt_release_ccb(done_ccb);
1740 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1);
1741 xpt_schedule(periph, priority);
1742 goto out;
1743 }
1744 if (softc->action == PROBE_DV_EXIT) {
1745 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1746 ("Leave Domain Validation\n"));
1747 }
1748 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1749 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1750 xpt_acquire_device(path->device);
1751 }
1752 path->device->flags &=
1753 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
1754 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) {
1755 /* Inform the XPT that a new device has been found */
1756 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1757 xpt_action(done_ccb);
1758 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path,
1759 done_ccb);
1760 }
1761 PROBE_SET_ACTION(softc, PROBE_DONE);
1762 xpt_release_ccb(done_ccb);
1763 break;
1764 case PROBE_INQUIRY_BASIC_DV1:
1765 case PROBE_INQUIRY_BASIC_DV2:
1766 {
1767 struct scsi_inquiry_data *nbuf;
1768 struct ccb_scsiio *csio;
1769
1770 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) {
1771 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT |
1772 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART)
1773 goto outr;
1774 }
1775 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1776 /* Don't wedge the queue */
1777 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1,
1778 /*run_queue*/TRUE);
1779 }
1780 csio = &done_ccb->csio;
1781 nbuf = (struct scsi_inquiry_data *)csio->data_ptr;
1782 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) {
1783 xpt_print(path,
1784 "inquiry data fails comparison at DV%d step\n",
1785 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2);
1786 if (proberequestbackoff(periph, path->device)) {
1787 path->device->flags &= ~CAM_DEV_IN_DV;
1788 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION);
1789 } else {
1790 /* give up */
1791 PROBE_SET_ACTION(softc, PROBE_DV_EXIT);
1792 }
1793 free(nbuf, M_CAMXPT);
1794 xpt_release_ccb(done_ccb);
1795 xpt_schedule(periph, priority);
1796 goto out;
1797 }
1798 free(nbuf, M_CAMXPT);
1799 if (softc->action == PROBE_INQUIRY_BASIC_DV1) {
1800 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2);
1801 xpt_release_ccb(done_ccb);
1802 xpt_schedule(periph, priority);
1803 goto out;
1804 }
1805 if (softc->action == PROBE_INQUIRY_BASIC_DV2) {
1806 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE,
1807 ("Leave Domain Validation Successfully\n"));
1808 }
1809 if (path->device->flags & CAM_DEV_UNCONFIGURED) {
1810 path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1811 xpt_acquire_device(path->device);
1812 }
1813 path->device->flags &=
1814 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM);
1815 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) {
1816 /* Inform the XPT that a new device has been found */
1817 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1818 xpt_action(done_ccb);
1819 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path,
1820 done_ccb);
1821 }
1822 PROBE_SET_ACTION(softc, PROBE_DONE);
1823 xpt_release_ccb(done_ccb);
1824 break;
1825 }
1826 default:
1827 panic("probedone: invalid action state 0x%x\n", softc->action);
1828 }
1829 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs);
1830 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe);
1831 done_ccb->ccb_h.status = CAM_REQ_CMP;
1832 xpt_done(done_ccb);
1833 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) {
1834 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n"));
1835 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
1836 cam_release_devq(path, 0, 0, 0, FALSE);
1837 cam_periph_release_locked(periph);
1838 cam_periph_invalidate(periph);
1839 cam_periph_release_locked(periph);
1840 } else {
1841 probeschedule(periph);
1842 goto out;
1843 }
1844 }
1845
1846 static void
probe_purge_old(struct cam_path * path,struct scsi_report_luns_data * new,probe_flags flags,bool is_wlun)1847 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new,
1848 probe_flags flags, bool is_wlun)
1849 {
1850 struct cam_path *tp;
1851 struct scsi_report_luns_data **luns_data, *old;
1852 u_int idx1, idx2, nlun_old, nlun_new;
1853 lun_id_t this_lun;
1854 uint8_t *ol, *nl;
1855
1856 luns_data = is_wlun ? &path->target->wluns : &path->target->luns;
1857
1858 if (path->target == NULL) {
1859 return;
1860 }
1861 mtx_lock(&path->target->luns_mtx);
1862 old = *luns_data;
1863 *luns_data = new;
1864 mtx_unlock(&path->target->luns_mtx);
1865 if (old == NULL)
1866 return;
1867 nlun_old = scsi_4btoul(old->length) / 8;
1868 nlun_new = scsi_4btoul(new->length) / 8;
1869
1870 /*
1871 * We are not going to assume sorted lists. Deal.
1872 */
1873 for (idx1 = 0; idx1 < nlun_old; idx1++) {
1874 ol = old->luns[idx1].lundata;
1875 for (idx2 = 0; idx2 < nlun_new; idx2++) {
1876 nl = new->luns[idx2].lundata;
1877 if (memcmp(nl, ol, 8) == 0) {
1878 break;
1879 }
1880 }
1881 if (idx2 < nlun_new) {
1882 continue;
1883 }
1884 /*
1885 * An 'old' item not in the 'new' list.
1886 * Nuke it. Except that if it is lun 0,
1887 * that would be what the probe state
1888 * machine is currently working on,
1889 * so we won't do that.
1890 */
1891 CAM_GET_LUN(old, idx1, this_lun);
1892 if (this_lun == 0) {
1893 continue;
1894 }
1895
1896 /*
1897 * We also cannot nuke it if it is
1898 * not in a lun format we understand
1899 * and replace the LUN with a "simple" LUN
1900 * if that is all the HBA supports.
1901 */
1902 if (!(flags & PROBE_EXTLUN)) {
1903 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1))
1904 continue;
1905 CAM_GET_SIMPLE_LUN(old, idx1, this_lun);
1906 }
1907
1908 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path),
1909 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) {
1910 xpt_async(AC_LOST_DEVICE, tp, NULL);
1911 xpt_free_path(tp);
1912 }
1913 }
1914 free(old, M_CAMXPT);
1915 }
1916
1917 static void
probecleanup(struct cam_periph * periph)1918 probecleanup(struct cam_periph *periph)
1919 {
1920 free(periph->softc, M_CAMXPT);
1921 }
1922
1923 static void
scsi_find_quirk(struct cam_ed * device)1924 scsi_find_quirk(struct cam_ed *device)
1925 {
1926 struct scsi_quirk_entry *quirk;
1927 caddr_t match;
1928
1929 match = cam_quirkmatch((caddr_t)&device->inq_data,
1930 (caddr_t)scsi_quirk_table,
1931 nitems(scsi_quirk_table),
1932 sizeof(*scsi_quirk_table), scsi_inquiry_match);
1933
1934 if (match == NULL)
1935 panic("xpt_find_quirk: device didn't match wildcard entry!!");
1936
1937 quirk = (struct scsi_quirk_entry *)match;
1938 device->quirk = quirk;
1939 device->mintags = quirk->mintags;
1940 device->maxtags = quirk->maxtags;
1941 }
1942
1943 typedef struct {
1944 int lun;
1945 int wlun;
1946 } lun_pair;
1947
1948 typedef struct {
1949 union ccb *request_ccb;
1950 struct ccb_pathinq *cpi;
1951 int counter;
1952 lun_pair lunindex[0];
1953 } scsi_scan_bus_info;
1954
1955 static void
free_scan_info(scsi_scan_bus_info * scan_info)1956 free_scan_info(scsi_scan_bus_info *scan_info)
1957 {
1958 KASSERT(scan_info->cpi != NULL,
1959 ("scan_info (%p) missing its ccb_pathinq CCB\n", scan_info));
1960 xpt_free_ccb((union ccb *)scan_info->cpi);
1961 free(scan_info, M_CAMXPT);
1962 }
1963
1964 /*
1965 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb.
1966 * As the scan progresses, scsi_scan_bus is used as the
1967 * callback on completion function.
1968 */
1969 static void
scsi_scan_bus(struct cam_periph * periph,union ccb * request_ccb)1970 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb)
1971 {
1972 struct mtx *mtx;
1973
1974 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE,
1975 ("scsi_scan_bus\n"));
1976 switch (request_ccb->ccb_h.func_code) {
1977 case XPT_SCAN_BUS:
1978 case XPT_SCAN_TGT:
1979 {
1980 scsi_scan_bus_info *scan_info;
1981 union ccb *work_ccb, *reset_ccb;
1982 struct cam_path *path;
1983 u_int i;
1984 u_int low_target, max_target;
1985 u_int initiator_id;
1986
1987 /* Find out the characteristics of the bus */
1988 work_ccb = xpt_alloc_ccb_nowait();
1989 if (work_ccb == NULL) {
1990 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
1991 xpt_done(request_ccb);
1992 return;
1993 }
1994 xpt_path_inq(&work_ccb->cpi, request_ccb->ccb_h.path);
1995 if (work_ccb->ccb_h.status != CAM_REQ_CMP) {
1996 request_ccb->ccb_h.status = work_ccb->ccb_h.status;
1997 xpt_free_ccb(work_ccb);
1998 xpt_done(request_ccb);
1999 return;
2000 }
2001
2002 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) {
2003 /*
2004 * Can't scan the bus on an adapter that
2005 * cannot perform the initiator role.
2006 */
2007 request_ccb->ccb_h.status = CAM_REQ_CMP;
2008 xpt_free_ccb(work_ccb);
2009 xpt_done(request_ccb);
2010 return;
2011 }
2012
2013 /* We may need to reset bus first, if we haven't done it yet. */
2014 if ((work_ccb->cpi.hba_inquiry &
2015 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) &&
2016 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) &&
2017 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) &&
2018 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) {
2019 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path,
2020 CAM_PRIORITY_NONE);
2021 reset_ccb->ccb_h.func_code = XPT_RESET_BUS;
2022 xpt_action(reset_ccb);
2023 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) {
2024 request_ccb->ccb_h.status = reset_ccb->ccb_h.status;
2025 xpt_free_ccb(reset_ccb);
2026 xpt_free_ccb(work_ccb);
2027 xpt_done(request_ccb);
2028 return;
2029 }
2030 xpt_free_ccb(reset_ccb);
2031 }
2032
2033 /* Save some state for use while we probe for devices */
2034 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) +
2035 (work_ccb->cpi.max_target * sizeof(lun_pair)),
2036 M_CAMXPT, M_ZERO|M_NOWAIT);
2037 if (scan_info == NULL) {
2038 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2039 xpt_free_ccb(work_ccb);
2040 xpt_done(request_ccb);
2041 return;
2042 }
2043 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE,
2044 ("SCAN start for %p\n", scan_info));
2045 scan_info->request_ccb = request_ccb;
2046 scan_info->cpi = &work_ccb->cpi;
2047
2048 /* Cache on our stack so we can work asynchronously */
2049 max_target = scan_info->cpi->max_target;
2050 low_target = 0;
2051 initiator_id = scan_info->cpi->initiator_id;
2052
2053 /*
2054 * We can scan all targets in parallel, or do it sequentially.
2055 */
2056
2057 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) {
2058 max_target = low_target = request_ccb->ccb_h.target_id;
2059 scan_info->counter = 0;
2060 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) {
2061 max_target = 0;
2062 scan_info->counter = 0;
2063 } else {
2064 scan_info->counter = scan_info->cpi->max_target + 1;
2065 if (scan_info->cpi->initiator_id < scan_info->counter) {
2066 scan_info->counter--;
2067 }
2068 }
2069 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path);
2070 mtx_unlock(mtx);
2071
2072 for (i = low_target; i <= max_target; i++) {
2073 cam_status status;
2074 if (i == initiator_id)
2075 continue;
2076
2077 status = xpt_create_path(&path, NULL,
2078 request_ccb->ccb_h.path_id,
2079 i, 0);
2080 if (status != CAM_REQ_CMP) {
2081 printf(
2082 "scsi_scan_bus: xpt_create_path failed with status %#x, bus scan halted\n",
2083 status);
2084 free_scan_info(scan_info);
2085 request_ccb->ccb_h.status = status;
2086 xpt_done(request_ccb);
2087 break;
2088 }
2089 work_ccb = xpt_alloc_ccb_nowait();
2090 if (work_ccb == NULL) {
2091 free_scan_info(scan_info);
2092 xpt_free_path(path);
2093 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2094 xpt_done(request_ccb);
2095 break;
2096 }
2097 xpt_setup_ccb(&work_ccb->ccb_h, path,
2098 request_ccb->ccb_h.pinfo.priority);
2099 work_ccb->ccb_h.func_code = XPT_SCAN_LUN;
2100 work_ccb->ccb_h.cbfcnp = scsi_scan_bus;
2101 work_ccb->ccb_h.flags |= CAM_UNLOCKED;
2102 work_ccb->ccb_h.ppriv_ptr0 = scan_info;
2103 work_ccb->crcn.flags = request_ccb->crcn.flags;
2104 xpt_action(work_ccb);
2105 }
2106
2107 mtx_lock(mtx);
2108 break;
2109 }
2110 case XPT_SCAN_LUN:
2111 {
2112 cam_status status;
2113 struct cam_path *path, *oldpath;
2114 scsi_scan_bus_info *scan_info;
2115 struct cam_et *target;
2116 struct cam_ed *device, *nextdev;
2117 int next_target;
2118 path_id_t path_id;
2119 target_id_t target_id;
2120 lun_id_t lun_id;
2121 u_int nwluns;
2122 bool need_wlun_scan = false;
2123
2124 oldpath = request_ccb->ccb_h.path;
2125
2126 status = cam_ccb_status(request_ccb);
2127 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0;
2128 path_id = request_ccb->ccb_h.path_id;
2129 target_id = request_ccb->ccb_h.target_id;
2130 lun_id = request_ccb->ccb_h.target_lun;
2131 target = request_ccb->ccb_h.path->target;
2132 next_target = 1;
2133
2134 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path);
2135 mtx_lock(mtx);
2136
2137 if (scan_info->cpi->hba_misc & PIM_WLUNS) {
2138 /* Scan Well known logical units */
2139 mtx_lock(&target->luns_mtx);
2140
2141 if (target->wluns) {
2142 nwluns = scsi_4btoul(target->wluns->length) / 8;
2143 if (scan_info->lunindex[target_id].wlun < nwluns)
2144 need_wlun_scan = true;
2145 }
2146
2147 if (need_wlun_scan) {
2148 /*
2149 * WLUN uses the Extended WLUN address format, so we can handle all of
2150 * them.
2151 */
2152 CAM_GET_LUN(target->wluns, scan_info->lunindex[target_id].wlun, lun_id);
2153
2154 mtx_unlock(&target->luns_mtx);
2155 next_target = 0;
2156 CAM_DEBUG(request_ccb->ccb_h.path,
2157 CAM_DEBUG_PROBE,
2158 ("next wlun to try at index %u is %jx\n",
2159 scan_info->lunindex[target_id].wlun,
2160 (uintmax_t)lun_id));
2161 scan_info->lunindex[target_id].wlun++;
2162 } else {
2163 mtx_unlock(&target->luns_mtx);
2164 /* We're done with scanning all wluns. */
2165 }
2166 }
2167
2168 if (!need_wlun_scan) {
2169 /* Scan logical units */
2170 mtx_lock(&target->luns_mtx);
2171 if (target->luns) {
2172 lun_id_t first;
2173 u_int nluns = scsi_4btoul(target->luns->length) / 8;
2174
2175 /*
2176 * Make sure we skip over lun 0 if it's the first member
2177 * of the list as we've actually just finished probing
2178 * it.
2179 */
2180 CAM_GET_LUN(target->luns, 0, first);
2181 if (first == 0 && scan_info->lunindex[target_id].lun == 0) {
2182 scan_info->lunindex[target_id].lun++;
2183 }
2184
2185 /*
2186 * Skip any LUNs that the HBA can't deal with.
2187 */
2188 while (scan_info->lunindex[target_id].lun < nluns) {
2189 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) {
2190 CAM_GET_LUN(target->luns,
2191 scan_info->lunindex[target_id].lun,
2192 lun_id);
2193 break;
2194 }
2195
2196 if (CAM_CAN_GET_SIMPLE_LUN(target->luns,
2197 scan_info->lunindex[target_id].lun)) {
2198 CAM_GET_SIMPLE_LUN(target->luns,
2199 scan_info->lunindex[target_id].lun,
2200 lun_id);
2201 break;
2202 }
2203
2204 scan_info->lunindex[target_id].lun++;
2205 }
2206
2207 if (scan_info->lunindex[target_id].lun < nluns) {
2208 mtx_unlock(&target->luns_mtx);
2209 next_target = 0;
2210 CAM_DEBUG(request_ccb->ccb_h.path,
2211 CAM_DEBUG_PROBE,
2212 ("next lun to try at index %u is %jx\n",
2213 scan_info->lunindex[target_id].lun,
2214 (uintmax_t)lun_id));
2215 scan_info->lunindex[target_id].lun++;
2216 } else {
2217 mtx_unlock(&target->luns_mtx);
2218 /* We're done with scanning all luns. */
2219 }
2220 } else {
2221 mtx_unlock(&target->luns_mtx);
2222 device = request_ccb->ccb_h.path->device;
2223 /* Continue sequential LUN scan if: */
2224 /* -- we have more LUNs that need recheck */
2225 mtx_lock(&target->bus->eb_mtx);
2226 nextdev = device;
2227 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL)
2228 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0)
2229 break;
2230 mtx_unlock(&target->bus->eb_mtx);
2231 if (nextdev != NULL) {
2232 next_target = 0;
2233 /* -- stop if CAM_QUIRK_NOLUNS is set. */
2234 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) {
2235 next_target = 1;
2236 /* -- this LUN is connected and its SCSI version
2237 * allows more LUNs. */
2238 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) {
2239 if (lun_id < (CAM_SCSI2_MAXLUN-1) ||
2240 CAN_SRCH_HI_DENSE(device))
2241 next_target = 0;
2242 /* -- this LUN is disconnected, its SCSI version
2243 * allows more LUNs and we guess they may be. */
2244 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) {
2245 if (lun_id < (CAM_SCSI2_MAXLUN-1) ||
2246 CAN_SRCH_HI_SPARSE(device))
2247 next_target = 0;
2248 }
2249 if (next_target == 0) {
2250 lun_id++;
2251 if (lun_id > scan_info->cpi->max_lun)
2252 next_target = 1;
2253 }
2254 }
2255 }
2256
2257 /*
2258 * Check to see if we scan any further luns.
2259 */
2260 if (next_target) {
2261 bool done;
2262
2263 /*
2264 * Free the current request path- we're done with it.
2265 */
2266 xpt_free_path(oldpath);
2267 hop_again:
2268 done = false;
2269 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) {
2270 done = true;
2271 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) {
2272 scan_info->counter++;
2273 if (scan_info->counter ==
2274 scan_info->cpi->initiator_id) {
2275 scan_info->counter++;
2276 }
2277 if (scan_info->counter >=
2278 scan_info->cpi->max_target+1) {
2279 done = true;
2280 }
2281 } else {
2282 scan_info->counter--;
2283 if (scan_info->counter == 0) {
2284 done = true;
2285 }
2286 }
2287 if (done) {
2288 mtx_unlock(mtx);
2289 xpt_free_ccb(request_ccb);
2290 request_ccb = scan_info->request_ccb;
2291 CAM_DEBUG(request_ccb->ccb_h.path,
2292 CAM_DEBUG_TRACE,
2293 ("SCAN done for %p\n", scan_info));
2294 free_scan_info(scan_info);
2295 request_ccb->ccb_h.status = CAM_REQ_CMP;
2296 xpt_done(request_ccb);
2297 break;
2298 }
2299
2300 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) {
2301 mtx_unlock(mtx);
2302 xpt_free_ccb(request_ccb);
2303 break;
2304 }
2305 status = xpt_create_path(&path, NULL,
2306 scan_info->request_ccb->ccb_h.path_id,
2307 scan_info->counter, 0);
2308 if (status != CAM_REQ_CMP) {
2309 mtx_unlock(mtx);
2310 printf(
2311 "scsi_scan_bus: xpt_create_path failed with status %#x, bus scan halted\n",
2312 status);
2313 xpt_free_ccb(request_ccb);
2314 request_ccb = scan_info->request_ccb;
2315 free_scan_info(scan_info);
2316 request_ccb->ccb_h.status = status;
2317 xpt_done(request_ccb);
2318 break;
2319 }
2320 xpt_setup_ccb(&request_ccb->ccb_h, path,
2321 request_ccb->ccb_h.pinfo.priority);
2322 request_ccb->ccb_h.func_code = XPT_SCAN_LUN;
2323 request_ccb->ccb_h.cbfcnp = scsi_scan_bus;
2324 request_ccb->ccb_h.flags |= CAM_UNLOCKED;
2325 request_ccb->ccb_h.ppriv_ptr0 = scan_info;
2326 request_ccb->crcn.flags =
2327 scan_info->request_ccb->crcn.flags;
2328 } else {
2329 status = xpt_create_path(&path, NULL,
2330 path_id, target_id, lun_id);
2331 /*
2332 * Free the old request path- we're done with it. We
2333 * do this *after* creating the new path so that
2334 * we don't remove a target that has our lun list
2335 * in the case that lun 0 is not present.
2336 */
2337 xpt_free_path(oldpath);
2338 if (status != CAM_REQ_CMP) {
2339 printf(
2340 "scsi_scan_bus: xpt_create_path failed with status %#x, halting LUN scan\n",
2341 status);
2342 goto hop_again;
2343 }
2344 xpt_setup_ccb(&request_ccb->ccb_h, path,
2345 request_ccb->ccb_h.pinfo.priority);
2346 request_ccb->ccb_h.func_code = XPT_SCAN_LUN;
2347 request_ccb->ccb_h.cbfcnp = scsi_scan_bus;
2348 request_ccb->ccb_h.flags |= CAM_UNLOCKED;
2349 request_ccb->ccb_h.ppriv_ptr0 = scan_info;
2350 request_ccb->crcn.flags =
2351 scan_info->request_ccb->crcn.flags;
2352 }
2353 mtx_unlock(mtx);
2354 xpt_action(request_ccb);
2355 break;
2356 }
2357 default:
2358 break;
2359 }
2360 }
2361
2362 static void
scsi_scan_lun(struct cam_periph * periph,struct cam_path * path,cam_flags flags,union ccb * request_ccb)2363 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path,
2364 cam_flags flags, union ccb *request_ccb)
2365 {
2366 struct ccb_pathinq cpi;
2367 cam_status status;
2368 struct cam_path *new_path;
2369 struct cam_periph *old_periph;
2370 int lock;
2371
2372 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n"));
2373
2374 xpt_path_inq(&cpi, path);
2375
2376 if (cpi.ccb_h.status != CAM_REQ_CMP) {
2377 if (request_ccb != NULL) {
2378 request_ccb->ccb_h.status = cpi.ccb_h.status;
2379 xpt_done(request_ccb);
2380 }
2381 return;
2382 }
2383
2384 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) {
2385 /*
2386 * Can't scan the bus on an adapter that
2387 * cannot perform the initiator role.
2388 */
2389 if (request_ccb != NULL) {
2390 request_ccb->ccb_h.status = CAM_REQ_CMP;
2391 xpt_done(request_ccb);
2392 }
2393 return;
2394 }
2395
2396 if (request_ccb == NULL) {
2397 request_ccb = xpt_alloc_ccb_nowait();
2398 if (request_ccb == NULL) {
2399 xpt_print(path,
2400 "scsi_scan_lun: can't allocate CCB, can't continue\n");
2401 return;
2402 }
2403 status = xpt_create_path(&new_path, NULL,
2404 path->bus->path_id,
2405 path->target->target_id,
2406 path->device->lun_id);
2407 if (status != CAM_REQ_CMP) {
2408 xpt_print(path,
2409 "scsi_scan_lun: can't create path, can't continue\n");
2410 xpt_free_ccb(request_ccb);
2411 return;
2412 }
2413 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT);
2414 request_ccb->ccb_h.cbfcnp = xptscandone;
2415 request_ccb->ccb_h.func_code = XPT_SCAN_LUN;
2416 request_ccb->ccb_h.flags |= CAM_UNLOCKED;
2417 request_ccb->crcn.flags = flags;
2418 }
2419
2420 lock = (xpt_path_owned(path) == 0);
2421 if (lock)
2422 xpt_path_lock(path);
2423 if ((old_periph = cam_periph_find(path, "probe")) != NULL) {
2424 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) {
2425 probe_softc *softc;
2426
2427 softc = (probe_softc *)old_periph->softc;
2428 TAILQ_INSERT_TAIL(&softc->request_ccbs,
2429 &request_ccb->ccb_h, periph_links.tqe);
2430 } else {
2431 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR;
2432 xpt_done(request_ccb);
2433 }
2434 } else {
2435 status = cam_periph_alloc(proberegister, NULL, probecleanup,
2436 probestart, "probe",
2437 CAM_PERIPH_BIO,
2438 request_ccb->ccb_h.path, NULL, 0,
2439 request_ccb);
2440
2441 if (status != CAM_REQ_CMP) {
2442 xpt_print(path,
2443 "scsi_scan_lun: cam_alloc_periph returned an error, can't continue probe\n");
2444 request_ccb->ccb_h.status = status;
2445 xpt_done(request_ccb);
2446 }
2447 }
2448 if (lock)
2449 xpt_path_unlock(path);
2450 }
2451
2452 static void
xptscandone(struct cam_periph * periph,union ccb * done_ccb)2453 xptscandone(struct cam_periph *periph, union ccb *done_ccb)
2454 {
2455
2456 xpt_free_path(done_ccb->ccb_h.path);
2457 xpt_free_ccb(done_ccb);
2458 }
2459
2460 static struct cam_ed *
scsi_alloc_device(struct cam_eb * bus,struct cam_et * target,lun_id_t lun_id)2461 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id)
2462 {
2463 struct scsi_quirk_entry *quirk;
2464 struct cam_ed *device;
2465
2466 device = xpt_alloc_device(bus, target, lun_id);
2467 if (device == NULL)
2468 return (NULL);
2469
2470 /*
2471 * Take the default quirk entry until we have inquiry
2472 * data and can determine a better quirk to use.
2473 */
2474 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1];
2475 device->quirk = (void *)quirk;
2476 device->mintags = quirk->mintags;
2477 device->maxtags = quirk->maxtags;
2478 bzero(&device->inq_data, sizeof(device->inq_data));
2479 device->inq_flags = 0;
2480 device->queue_flags = 0;
2481 device->serial_num = NULL;
2482 device->serial_num_len = 0;
2483 device->device_id = NULL;
2484 device->device_id_len = 0;
2485 device->supported_vpds = NULL;
2486 device->supported_vpds_len = 0;
2487 return (device);
2488 }
2489
2490 static void
scsi_devise_transport(struct cam_path * path)2491 scsi_devise_transport(struct cam_path *path)
2492 {
2493 struct ccb_pathinq cpi;
2494 struct ccb_trans_settings cts;
2495 struct scsi_inquiry_data *inq_buf;
2496
2497 /* Get transport information from the SIM */
2498 xpt_path_inq(&cpi, path);
2499
2500 inq_buf = NULL;
2501 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0)
2502 inq_buf = &path->device->inq_data;
2503 path->device->protocol = PROTO_SCSI;
2504 path->device->protocol_version =
2505 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version;
2506 path->device->transport = cpi.transport;
2507 path->device->transport_version = cpi.transport_version;
2508
2509 /*
2510 * Any device not using SPI3 features should
2511 * be considered SPI2 or lower.
2512 */
2513 if (inq_buf != NULL) {
2514 if (path->device->transport == XPORT_SPI
2515 && (inq_buf->spi3data & SID_SPI_MASK) == 0
2516 && path->device->transport_version > 2)
2517 path->device->transport_version = 2;
2518 } else {
2519 struct cam_ed* otherdev;
2520
2521 for (otherdev = TAILQ_FIRST(&path->target->ed_entries);
2522 otherdev != NULL;
2523 otherdev = TAILQ_NEXT(otherdev, links)) {
2524 if (otherdev != path->device)
2525 break;
2526 }
2527
2528 if (otherdev != NULL) {
2529 /*
2530 * Initially assume the same versioning as
2531 * prior luns for this target.
2532 */
2533 path->device->protocol_version =
2534 otherdev->protocol_version;
2535 path->device->transport_version =
2536 otherdev->transport_version;
2537 } else {
2538 /* Until we know better, opt for safety */
2539 path->device->protocol_version = 2;
2540 if (path->device->transport == XPORT_SPI)
2541 path->device->transport_version = 2;
2542 else
2543 path->device->transport_version = 0;
2544 }
2545 }
2546
2547 /*
2548 * XXX
2549 * For a device compliant with SPC-2 we should be able
2550 * to determine the transport version supported by
2551 * scrutinizing the version descriptors in the
2552 * inquiry buffer.
2553 */
2554
2555 /* Tell the controller what we think */
2556 memset(&cts, 0, sizeof(cts));
2557 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
2558 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS;
2559 cts.type = CTS_TYPE_CURRENT_SETTINGS;
2560 cts.transport = path->device->transport;
2561 cts.transport_version = path->device->transport_version;
2562 cts.protocol = path->device->protocol;
2563 cts.protocol_version = path->device->protocol_version;
2564 cts.proto_specific.valid = 0;
2565 cts.xport_specific.valid = 0;
2566 xpt_action((union ccb *)&cts);
2567 }
2568
2569 static void
scsi_dev_advinfo(union ccb * start_ccb)2570 scsi_dev_advinfo(union ccb *start_ccb)
2571 {
2572 struct cam_ed *device;
2573 struct ccb_dev_advinfo *cdai;
2574 off_t amt;
2575
2576 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED);
2577 start_ccb->ccb_h.status = CAM_REQ_INVALID;
2578 device = start_ccb->ccb_h.path->device;
2579 cdai = &start_ccb->cdai;
2580 switch(cdai->buftype) {
2581 case CDAI_TYPE_SCSI_DEVID:
2582 if (cdai->flags & CDAI_FLAG_STORE)
2583 return;
2584 cdai->provsiz = device->device_id_len;
2585 if (device->device_id_len == 0)
2586 break;
2587 amt = device->device_id_len;
2588 if (cdai->provsiz > cdai->bufsiz)
2589 amt = cdai->bufsiz;
2590 memcpy(cdai->buf, device->device_id, amt);
2591 break;
2592 case CDAI_TYPE_SERIAL_NUM:
2593 if (cdai->flags & CDAI_FLAG_STORE)
2594 return;
2595 cdai->provsiz = device->serial_num_len;
2596 if (device->serial_num_len == 0)
2597 break;
2598 amt = device->serial_num_len;
2599 if (cdai->provsiz > cdai->bufsiz)
2600 amt = cdai->bufsiz;
2601 memcpy(cdai->buf, device->serial_num, amt);
2602 break;
2603 case CDAI_TYPE_PHYS_PATH:
2604 if (cdai->flags & CDAI_FLAG_STORE) {
2605 if (device->physpath != NULL) {
2606 free(device->physpath, M_CAMXPT);
2607 device->physpath = NULL;
2608 device->physpath_len = 0;
2609 }
2610 /* Clear existing buffer if zero length */
2611 if (cdai->bufsiz == 0)
2612 break;
2613 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT);
2614 if (device->physpath == NULL) {
2615 start_ccb->ccb_h.status = CAM_REQ_ABORTED;
2616 return;
2617 }
2618 device->physpath_len = cdai->bufsiz;
2619 memcpy(device->physpath, cdai->buf, cdai->bufsiz);
2620 } else {
2621 cdai->provsiz = device->physpath_len;
2622 if (device->physpath_len == 0)
2623 break;
2624 amt = device->physpath_len;
2625 if (cdai->provsiz > cdai->bufsiz)
2626 amt = cdai->bufsiz;
2627 memcpy(cdai->buf, device->physpath, amt);
2628 }
2629 break;
2630 case CDAI_TYPE_RCAPLONG:
2631 if (cdai->flags & CDAI_FLAG_STORE) {
2632 if (device->rcap_buf != NULL) {
2633 free(device->rcap_buf, M_CAMXPT);
2634 device->rcap_buf = NULL;
2635 }
2636
2637 device->rcap_len = cdai->bufsiz;
2638 /* Clear existing buffer if zero length */
2639 if (cdai->bufsiz == 0)
2640 break;
2641
2642 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT,
2643 M_NOWAIT);
2644 if (device->rcap_buf == NULL) {
2645 start_ccb->ccb_h.status = CAM_REQ_ABORTED;
2646 return;
2647 }
2648
2649 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz);
2650 } else {
2651 cdai->provsiz = device->rcap_len;
2652 if (device->rcap_len == 0)
2653 break;
2654 amt = device->rcap_len;
2655 if (cdai->provsiz > cdai->bufsiz)
2656 amt = cdai->bufsiz;
2657 memcpy(cdai->buf, device->rcap_buf, amt);
2658 }
2659 break;
2660 case CDAI_TYPE_EXT_INQ:
2661 /*
2662 * We fetch extended inquiry data during probe, if
2663 * available. We don't allow changing it.
2664 */
2665 if (cdai->flags & CDAI_FLAG_STORE)
2666 return;
2667 cdai->provsiz = device->ext_inq_len;
2668 if (device->ext_inq_len == 0)
2669 break;
2670 amt = device->ext_inq_len;
2671 if (cdai->provsiz > cdai->bufsiz)
2672 amt = cdai->bufsiz;
2673 memcpy(cdai->buf, device->ext_inq, amt);
2674 break;
2675 default:
2676 return;
2677 }
2678 start_ccb->ccb_h.status = CAM_REQ_CMP;
2679
2680 if (cdai->flags & CDAI_FLAG_STORE) {
2681 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path,
2682 (void *)(uintptr_t)cdai->buftype);
2683 }
2684 }
2685
2686 static void
scsi_action(union ccb * start_ccb)2687 scsi_action(union ccb *start_ccb)
2688 {
2689
2690 if (start_ccb->ccb_h.func_code != XPT_SCSI_IO) {
2691 KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0,
2692 ("%s: ccb %p, func_code %#x should not be allocated from UMA zone\n",
2693 __func__, start_ccb, start_ccb->ccb_h.func_code));
2694 }
2695
2696 switch (start_ccb->ccb_h.func_code) {
2697 case XPT_SET_TRAN_SETTINGS:
2698 {
2699 scsi_set_transfer_settings(&start_ccb->cts,
2700 start_ccb->ccb_h.path,
2701 /*async_update*/FALSE);
2702 break;
2703 }
2704 case XPT_SCAN_BUS:
2705 case XPT_SCAN_TGT:
2706 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb);
2707 break;
2708 case XPT_SCAN_LUN:
2709 scsi_scan_lun(start_ccb->ccb_h.path->periph,
2710 start_ccb->ccb_h.path, start_ccb->crcn.flags,
2711 start_ccb);
2712 break;
2713 case XPT_DEV_ADVINFO:
2714 {
2715 scsi_dev_advinfo(start_ccb);
2716 break;
2717 }
2718 default:
2719 xpt_action_default(start_ccb);
2720 break;
2721 }
2722 }
2723
2724 static void
scsi_set_transfer_settings(struct ccb_trans_settings * cts,struct cam_path * path,int async_update)2725 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path,
2726 int async_update)
2727 {
2728 struct ccb_pathinq cpi;
2729 struct ccb_trans_settings cur_cts;
2730 struct ccb_trans_settings_scsi *scsi;
2731 struct ccb_trans_settings_scsi *cur_scsi;
2732 struct scsi_inquiry_data *inq_data;
2733 struct cam_ed *device;
2734
2735 if (path == NULL || (device = path->device) == NULL) {
2736 cts->ccb_h.status = CAM_PATH_INVALID;
2737 xpt_done((union ccb *)cts);
2738 return;
2739 }
2740
2741 if (cts->protocol == PROTO_UNKNOWN
2742 || cts->protocol == PROTO_UNSPECIFIED) {
2743 cts->protocol = device->protocol;
2744 cts->protocol_version = device->protocol_version;
2745 }
2746
2747 if (cts->protocol_version == PROTO_VERSION_UNKNOWN
2748 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED)
2749 cts->protocol_version = device->protocol_version;
2750
2751 if (cts->protocol != device->protocol) {
2752 xpt_print(path, "Uninitialized Protocol %x:%x?\n",
2753 cts->protocol, device->protocol);
2754 cts->protocol = device->protocol;
2755 }
2756
2757 if (cts->protocol_version > device->protocol_version) {
2758 if (bootverbose) {
2759 xpt_print(path,
2760 "Down reving Protocol Version from %d to %d?\n",
2761 cts->protocol_version,
2762 device->protocol_version);
2763 }
2764 cts->protocol_version = device->protocol_version;
2765 }
2766
2767 if (cts->transport == XPORT_UNKNOWN
2768 || cts->transport == XPORT_UNSPECIFIED) {
2769 cts->transport = device->transport;
2770 cts->transport_version = device->transport_version;
2771 }
2772
2773 if (cts->transport_version == XPORT_VERSION_UNKNOWN
2774 || cts->transport_version == XPORT_VERSION_UNSPECIFIED)
2775 cts->transport_version = device->transport_version;
2776
2777 if (cts->transport != device->transport) {
2778 xpt_print(path, "Uninitialized Transport %x:%x?\n",
2779 cts->transport, device->transport);
2780 cts->transport = device->transport;
2781 }
2782
2783 if (cts->transport_version > device->transport_version) {
2784 if (bootverbose) {
2785 xpt_print(path,
2786 "Down reving Transport Version from %d to %d?\n",
2787 cts->transport_version,
2788 device->transport_version);
2789 }
2790 cts->transport_version = device->transport_version;
2791 }
2792
2793 /*
2794 * Nothing more of interest to do unless
2795 * this is a device connected via the
2796 * SCSI protocol.
2797 */
2798 if (cts->protocol != PROTO_SCSI) {
2799 if (async_update == FALSE)
2800 xpt_action_default((union ccb *)cts);
2801 return;
2802 }
2803
2804 inq_data = &device->inq_data;
2805 scsi = &cts->proto_specific.scsi;
2806 xpt_path_inq(&cpi, path);
2807
2808 /* SCSI specific sanity checking */
2809 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0
2810 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0
2811 || (device->queue_flags & SCP_QUEUE_DQUE) != 0
2812 || (device->mintags == 0)) {
2813 /*
2814 * Can't tag on hardware that doesn't support tags,
2815 * doesn't have it enabled, or has broken tag support.
2816 */
2817 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
2818 }
2819
2820 if (async_update == FALSE) {
2821 /*
2822 * Perform sanity checking against what the
2823 * controller and device can do.
2824 */
2825 memset(&cur_cts, 0, sizeof(cur_cts));
2826 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE);
2827 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
2828 cur_cts.type = cts->type;
2829 xpt_action((union ccb *)&cur_cts);
2830 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) {
2831 return;
2832 }
2833 cur_scsi = &cur_cts.proto_specific.scsi;
2834 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) {
2835 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
2836 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB;
2837 }
2838 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0)
2839 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
2840 }
2841
2842 /* SPI specific sanity checking */
2843 if (cts->transport == XPORT_SPI && async_update == FALSE) {
2844 u_int spi3caps;
2845 struct ccb_trans_settings_spi *spi;
2846 struct ccb_trans_settings_spi *cur_spi;
2847
2848 spi = &cts->xport_specific.spi;
2849
2850 cur_spi = &cur_cts.xport_specific.spi;
2851
2852 /* Fill in any gaps in what the user gave us */
2853 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0)
2854 spi->sync_period = cur_spi->sync_period;
2855 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0)
2856 spi->sync_period = 0;
2857 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0)
2858 spi->sync_offset = cur_spi->sync_offset;
2859 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0)
2860 spi->sync_offset = 0;
2861 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0)
2862 spi->ppr_options = cur_spi->ppr_options;
2863 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0)
2864 spi->ppr_options = 0;
2865 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0)
2866 spi->bus_width = cur_spi->bus_width;
2867 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0)
2868 spi->bus_width = 0;
2869 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) {
2870 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
2871 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB;
2872 }
2873 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0)
2874 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB;
2875 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0
2876 && (inq_data->flags & SID_Sync) == 0
2877 && cts->type == CTS_TYPE_CURRENT_SETTINGS)
2878 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) {
2879 /* Force async */
2880 spi->sync_period = 0;
2881 spi->sync_offset = 0;
2882 }
2883
2884 switch (spi->bus_width) {
2885 case MSG_EXT_WDTR_BUS_32_BIT:
2886 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0
2887 || (inq_data->flags & SID_WBus32) != 0
2888 || cts->type == CTS_TYPE_USER_SETTINGS)
2889 && (cpi.hba_inquiry & PI_WIDE_32) != 0)
2890 break;
2891 /* Fall Through to 16-bit */
2892 case MSG_EXT_WDTR_BUS_16_BIT:
2893 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0
2894 || (inq_data->flags & SID_WBus16) != 0
2895 || cts->type == CTS_TYPE_USER_SETTINGS)
2896 && (cpi.hba_inquiry & PI_WIDE_16) != 0) {
2897 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
2898 break;
2899 }
2900 /* Fall Through to 8-bit */
2901 default: /* New bus width?? */
2902 case MSG_EXT_WDTR_BUS_8_BIT:
2903 /* All targets can do this */
2904 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
2905 break;
2906 }
2907
2908 spi3caps = cpi.xport_specific.spi.ppr_options;
2909 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0
2910 && cts->type == CTS_TYPE_CURRENT_SETTINGS)
2911 spi3caps &= inq_data->spi3data;
2912
2913 if ((spi3caps & SID_SPI_CLOCK_DT) == 0)
2914 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ;
2915
2916 if ((spi3caps & SID_SPI_IUS) == 0)
2917 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ;
2918
2919 if ((spi3caps & SID_SPI_QAS) == 0)
2920 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ;
2921
2922 /* No SPI Transfer settings are allowed unless we are wide */
2923 if (spi->bus_width == 0)
2924 spi->ppr_options = 0;
2925
2926 if ((spi->valid & CTS_SPI_VALID_DISC)
2927 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) {
2928 /*
2929 * Can't tag queue without disconnection.
2930 */
2931 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB;
2932 scsi->valid |= CTS_SCSI_VALID_TQ;
2933 }
2934
2935 /*
2936 * If we are currently performing tagged transactions to
2937 * this device and want to change its negotiation parameters,
2938 * go non-tagged for a bit to give the controller a chance to
2939 * negotiate unhampered by tag messages.
2940 */
2941 if (cts->type == CTS_TYPE_CURRENT_SETTINGS
2942 && (device->inq_flags & SID_CmdQue) != 0
2943 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0
2944 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE|
2945 CTS_SPI_VALID_SYNC_OFFSET|
2946 CTS_SPI_VALID_BUS_WIDTH)) != 0)
2947 scsi_toggle_tags(path);
2948 }
2949
2950 if (cts->type == CTS_TYPE_CURRENT_SETTINGS
2951 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
2952 int device_tagenb;
2953
2954 /*
2955 * If we are transitioning from tags to no-tags or
2956 * vice-versa, we need to carefully freeze and restart
2957 * the queue so that we don't overlap tagged and non-tagged
2958 * commands. We also temporarily stop tags if there is
2959 * a change in transfer negotiation settings to allow
2960 * "tag-less" negotiation.
2961 */
2962 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0
2963 || (device->inq_flags & SID_CmdQue) != 0)
2964 device_tagenb = TRUE;
2965 else
2966 device_tagenb = FALSE;
2967
2968 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0
2969 && device_tagenb == FALSE)
2970 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0
2971 && device_tagenb == TRUE)) {
2972 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) {
2973 /*
2974 * Delay change to use tags until after a
2975 * few commands have gone to this device so
2976 * the controller has time to perform transfer
2977 * negotiations without tagged messages getting
2978 * in the way.
2979 */
2980 device->tag_delay_count = CAM_TAG_DELAY_COUNT;
2981 device->flags |= CAM_DEV_TAG_AFTER_COUNT;
2982 } else {
2983 xpt_stop_tags(path);
2984 }
2985 }
2986 }
2987 if (async_update == FALSE)
2988 xpt_action_default((union ccb *)cts);
2989 }
2990
2991 static void
scsi_toggle_tags(struct cam_path * path)2992 scsi_toggle_tags(struct cam_path *path)
2993 {
2994 struct cam_ed *dev;
2995
2996 /*
2997 * Give controllers a chance to renegotiate
2998 * before starting tag operations. We
2999 * "toggle" tagged queuing off then on
3000 * which causes the tag enable command delay
3001 * counter to come into effect.
3002 */
3003 dev = path->device;
3004 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0
3005 || ((dev->inq_flags & SID_CmdQue) != 0
3006 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) {
3007 struct ccb_trans_settings cts;
3008
3009 memset(&cts, 0, sizeof(cts));
3010 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE);
3011 cts.protocol = PROTO_SCSI;
3012 cts.protocol_version = PROTO_VERSION_UNSPECIFIED;
3013 cts.transport = XPORT_UNSPECIFIED;
3014 cts.transport_version = XPORT_VERSION_UNSPECIFIED;
3015 cts.proto_specific.scsi.flags = 0;
3016 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
3017 scsi_set_transfer_settings(&cts, path,
3018 /*async_update*/TRUE);
3019 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
3020 scsi_set_transfer_settings(&cts, path,
3021 /*async_update*/TRUE);
3022 }
3023 }
3024
3025 /*
3026 * Handle any per-device event notifications that require action by the XPT.
3027 */
3028 static void
scsi_dev_async(uint32_t async_code,struct cam_eb * bus,struct cam_et * target,struct cam_ed * device,void * async_arg)3029 scsi_dev_async(uint32_t async_code, struct cam_eb *bus, struct cam_et *target,
3030 struct cam_ed *device, void *async_arg)
3031 {
3032 cam_status status;
3033 struct cam_path newpath;
3034
3035 /*
3036 * We only need to handle events for real devices.
3037 */
3038 if (target->target_id == CAM_TARGET_WILDCARD
3039 || device->lun_id == CAM_LUN_WILDCARD)
3040 return;
3041
3042 /*
3043 * We need our own path with wildcards expanded to
3044 * handle certain types of events.
3045 */
3046 if ((async_code == AC_SENT_BDR)
3047 || (async_code == AC_BUS_RESET)
3048 || (async_code == AC_INQ_CHANGED))
3049 status = xpt_compile_path(&newpath, NULL,
3050 bus->path_id,
3051 target->target_id,
3052 device->lun_id);
3053 else
3054 status = CAM_REQ_CMP_ERR;
3055
3056 if (status == CAM_REQ_CMP) {
3057 /*
3058 * Allow transfer negotiation to occur in a
3059 * tag free environment and after settle delay.
3060 */
3061 if (async_code == AC_SENT_BDR
3062 || async_code == AC_BUS_RESET) {
3063 cam_freeze_devq(&newpath);
3064 cam_release_devq(&newpath,
3065 RELSIM_RELEASE_AFTER_TIMEOUT,
3066 /*reduction*/0,
3067 /*timeout*/scsi_delay,
3068 /*getcount_only*/0);
3069 scsi_toggle_tags(&newpath);
3070 }
3071
3072 if (async_code == AC_INQ_CHANGED) {
3073 /*
3074 * We've sent a start unit command, or
3075 * something similar to a device that
3076 * may have caused its inquiry data to
3077 * change. So we re-scan the device to
3078 * refresh the inquiry data for it.
3079 */
3080 scsi_scan_lun(newpath.periph, &newpath,
3081 CAM_EXPECT_INQ_CHANGE, NULL);
3082 }
3083 xpt_release_path(&newpath);
3084 } else if (async_code == AC_LOST_DEVICE &&
3085 (device->flags & CAM_DEV_UNCONFIGURED) == 0) {
3086 device->flags |= CAM_DEV_UNCONFIGURED;
3087 xpt_release_device(device);
3088 } else if (async_code == AC_TRANSFER_NEG) {
3089 struct ccb_trans_settings *settings;
3090 struct cam_path path;
3091
3092 settings = (struct ccb_trans_settings *)async_arg;
3093 xpt_compile_path(&path, NULL, bus->path_id, target->target_id,
3094 device->lun_id);
3095 scsi_set_transfer_settings(settings, &path,
3096 /*async_update*/TRUE);
3097 xpt_release_path(&path);
3098 }
3099 }
3100
3101 static void
_scsi_announce_periph(struct cam_periph * periph,u_int * speed,u_int * freq,struct ccb_trans_settings * cts)3102 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts)
3103 {
3104 struct ccb_pathinq cpi;
3105 struct cam_path *path = periph->path;
3106
3107 cam_periph_assert(periph, MA_OWNED);
3108
3109 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL);
3110 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
3111 cts->type = CTS_TYPE_CURRENT_SETTINGS;
3112 xpt_action((union ccb*)cts);
3113 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP)
3114 return;
3115
3116 /* Ask the SIM for its base transfer speed */
3117 xpt_path_inq(&cpi, path);
3118
3119 /* Report connection speed */
3120 *speed = cpi.base_transfer_speed;
3121 *freq = 0;
3122
3123 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) {
3124 struct ccb_trans_settings_spi *spi =
3125 &cts->xport_specific.spi;
3126
3127 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0
3128 && spi->sync_offset != 0) {
3129 *freq = scsi_calc_syncsrate(spi->sync_period);
3130 *speed = *freq;
3131 }
3132 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0)
3133 *speed *= (0x01 << spi->bus_width);
3134 }
3135 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) {
3136 struct ccb_trans_settings_fc *fc =
3137 &cts->xport_specific.fc;
3138
3139 if (fc->valid & CTS_FC_VALID_SPEED)
3140 *speed = fc->bitrate;
3141 }
3142 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) {
3143 struct ccb_trans_settings_sas *sas =
3144 &cts->xport_specific.sas;
3145
3146 if (sas->valid & CTS_SAS_VALID_SPEED)
3147 *speed = sas->bitrate;
3148 }
3149 }
3150
3151 static void
scsi_announce_periph_sbuf(struct cam_periph * periph,struct sbuf * sb)3152 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb)
3153 {
3154 struct ccb_trans_settings cts;
3155 u_int speed, freq, mb;
3156
3157 memset(&cts, 0, sizeof(cts));
3158 _scsi_announce_periph(periph, &speed, &freq, &cts);
3159 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP)
3160 return;
3161
3162 mb = speed / 1000;
3163 if (mb > 0)
3164 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers",
3165 periph->periph_name, periph->unit_number,
3166 mb, speed % 1000);
3167 else
3168 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name,
3169 periph->unit_number, speed);
3170 /* Report additional information about SPI connections */
3171 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) {
3172 struct ccb_trans_settings_spi *spi;
3173
3174 spi = &cts.xport_specific.spi;
3175 if (freq != 0) {
3176 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000,
3177 freq % 1000,
3178 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
3179 ? " DT" : "",
3180 spi->sync_offset);
3181 }
3182 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0
3183 && spi->bus_width > 0) {
3184 if (freq != 0) {
3185 sbuf_cat(sb, ", ");
3186 } else {
3187 sbuf_cat(sb, " (");
3188 }
3189 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width));
3190 } else if (freq != 0) {
3191 sbuf_putc(sb, ')');
3192 }
3193 }
3194 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) {
3195 struct ccb_trans_settings_fc *fc;
3196
3197 fc = &cts.xport_specific.fc;
3198 if (fc->valid & CTS_FC_VALID_WWNN)
3199 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn);
3200 if (fc->valid & CTS_FC_VALID_WWPN)
3201 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn);
3202 if (fc->valid & CTS_FC_VALID_PORT)
3203 sbuf_printf(sb, " PortID 0x%x", fc->port);
3204 }
3205 sbuf_putc(sb, '\n');
3206 }
3207
3208 static void
scsi_proto_announce_sbuf(struct cam_ed * device,struct sbuf * sb)3209 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb)
3210 {
3211 scsi_print_inquiry_sbuf(sb, &device->inq_data);
3212 }
3213
3214 static void
scsi_proto_denounce_sbuf(struct cam_ed * device,struct sbuf * sb)3215 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb)
3216 {
3217 scsi_print_inquiry_short_sbuf(sb, &device->inq_data);
3218 }
3219
3220 static void
scsi_proto_debug_out(union ccb * ccb)3221 scsi_proto_debug_out(union ccb *ccb)
3222 {
3223 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1];
3224 struct cam_ed *device;
3225
3226 if (ccb->ccb_h.func_code != XPT_SCSI_IO)
3227 return;
3228
3229 device = ccb->ccb_h.path->device;
3230 CAM_DEBUG(ccb->ccb_h.path,
3231 CAM_DEBUG_CDB,("%s. CDB: %s\n",
3232 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data),
3233 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str))));
3234 }
3235