Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/cam/scsi/scsi_xpt.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
1 /*- 2 * Implementation of the SCSI Transport 3 * 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/bus.h> 37 #include <sys/systm.h> 38 #include <sys/types.h> 39 #include <sys/malloc.h> 40 #include <sys/kernel.h> 41 #include <sys/time.h> 42 #include <sys/conf.h> 43 #include <sys/fcntl.h> 44 #include <sys/md5.h> 45 #include <sys/sbuf.h> 46 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #include <sys/sysctl.h> 50 51 #include <cam/cam.h> 52 #include <cam/cam_ccb.h> 53 #include <cam/cam_queue.h> 54 #include <cam/cam_periph.h> 55 #include <cam/cam_sim.h> 56 #include <cam/cam_xpt.h> 57 #include <cam/cam_xpt_sim.h> 58 #include <cam/cam_xpt_periph.h> 59 #include <cam/cam_xpt_internal.h> 60 #include <cam/cam_debug.h> 61 62 #include <cam/scsi/scsi_all.h> 63 #include <cam/scsi/scsi_message.h> 64 #include <cam/scsi/scsi_pass.h> 65 #include <machine/stdarg.h> /* for xpt_print below */ 66 #include "opt_cam.h" 67 68 struct scsi_quirk_entry { 69 struct scsi_inquiry_pattern inq_pat; 70 u_int8_t quirks; 71 #define CAM_QUIRK_NOLUNS 0x01 72 #define CAM_QUIRK_NOVPDS 0x02 73 #define CAM_QUIRK_HILUNS 0x04 74 #define CAM_QUIRK_NOHILUNS 0x08 75 #define CAM_QUIRK_NORPTLUNS 0x10 76 u_int mintags; 77 u_int maxtags; 78 }; 79 #define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk)) 80 81 static int cam_srch_hi = 0; 82 static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS); 83 SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT | CTLFLAG_RWTUN, 0, 0, 84 sysctl_cam_search_luns, "I", 85 "allow search above LUN 7 for SCSI3 and greater devices"); 86 87 #define CAM_SCSI2_MAXLUN 8 88 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 89 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 90 RPL_LUNDATA_ATYP_PERIPH) || \ 91 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 92 RPL_LUNDATA_ATYP_FLAT)) 93 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 94 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 95 RPL_LUNDATA_ATYP_PERIPH) { \ 96 (lval) = (lp)->luns[(i)].lundata[1]; \ 97 } else { \ 98 (lval) = (lp)->luns[(i)].lundata[0]; \ 99 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 100 (lval) <<= 8; \ 101 (lval) |= (lp)->luns[(i)].lundata[1]; \ 102 } 103 #define CAM_GET_LUN(lp, i, lval) \ 104 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \ 105 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval); 106 107 /* 108 * If we're not quirked to search <= the first 8 luns 109 * and we are either quirked to search above lun 8, 110 * or we're > SCSI-2 and we've enabled hilun searching, 111 * or we're > SCSI-2 and the last lun was a success, 112 * we can look for luns above lun 8. 113 */ 114 #define CAN_SRCH_HI_SPARSE(dv) \ 115 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 116 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 117 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 118 119 #define CAN_SRCH_HI_DENSE(dv) \ 120 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 121 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 122 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 123 124 static periph_init_t probe_periph_init; 125 126 static struct periph_driver probe_driver = 127 { 128 probe_periph_init, "probe", 129 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 130 CAM_PERIPH_DRV_EARLY 131 }; 132 133 PERIPHDRIVER_DECLARE(probe, probe_driver); 134 135 typedef enum { 136 PROBE_TUR, 137 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 138 PROBE_FULL_INQUIRY, 139 PROBE_REPORT_LUNS, 140 PROBE_MODE_SENSE, 141 PROBE_SUPPORTED_VPD_LIST, 142 PROBE_DEVICE_ID, 143 PROBE_EXTENDED_INQUIRY, 144 PROBE_SERIAL_NUM, 145 PROBE_TUR_FOR_NEGOTIATION, 146 PROBE_INQUIRY_BASIC_DV1, 147 PROBE_INQUIRY_BASIC_DV2, 148 PROBE_DV_EXIT, 149 PROBE_DONE, 150 PROBE_INVALID 151 } probe_action; 152 153 static char *probe_action_text[] = { 154 "PROBE_TUR", 155 "PROBE_INQUIRY", 156 "PROBE_FULL_INQUIRY", 157 "PROBE_REPORT_LUNS", 158 "PROBE_MODE_SENSE", 159 "PROBE_SUPPORTED_VPD_LIST", 160 "PROBE_DEVICE_ID", 161 "PROBE_EXTENDED_INQUIRY", 162 "PROBE_SERIAL_NUM", 163 "PROBE_TUR_FOR_NEGOTIATION", 164 "PROBE_INQUIRY_BASIC_DV1", 165 "PROBE_INQUIRY_BASIC_DV2", 166 "PROBE_DV_EXIT", 167 "PROBE_DONE", 168 "PROBE_INVALID" 169 }; 170 171 #define PROBE_SET_ACTION(softc, newaction) \ 172 do { \ 173 char **text; \ 174 text = probe_action_text; \ 175 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 176 ("Probe %s to %s\n", text[(softc)->action], \ 177 text[(newaction)])); \ 178 (softc)->action = (newaction); \ 179 } while(0) 180 181 typedef enum { 182 PROBE_INQUIRY_CKSUM = 0x01, 183 PROBE_NO_ANNOUNCE = 0x04, 184 PROBE_EXTLUN = 0x08 185 } probe_flags; 186 187 typedef struct { 188 TAILQ_HEAD(, ccb_hdr) request_ccbs; 189 probe_action action; 190 union ccb saved_ccb; 191 probe_flags flags; 192 MD5_CTX context; 193 u_int8_t digest[16]; 194 struct cam_periph *periph; 195 } probe_softc; 196 197 static const char quantum[] = "QUANTUM"; 198 static const char sony[] = "SONY"; 199 static const char west_digital[] = "WDIGTL"; 200 static const char samsung[] = "SAMSUNG"; 201 static const char seagate[] = "SEAGATE"; 202 static const char microp[] = "MICROP"; 203 204 static struct scsi_quirk_entry scsi_quirk_table[] = 205 { 206 { 207 /* Reports QUEUE FULL for temporary resource shortages */ 208 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 209 /*quirks*/0, /*mintags*/24, /*maxtags*/32 210 }, 211 { 212 /* Reports QUEUE FULL for temporary resource shortages */ 213 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 214 /*quirks*/0, /*mintags*/24, /*maxtags*/32 215 }, 216 { 217 /* Reports QUEUE FULL for temporary resource shortages */ 218 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 219 /*quirks*/0, /*mintags*/24, /*maxtags*/32 220 }, 221 { 222 /* Broken tagged queuing drive */ 223 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 224 /*quirks*/0, /*mintags*/0, /*maxtags*/ 225 }, 226 { 227 /* Broken tagged queuing drive */ 228 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 229 /*quirks*/0, /*mintags*/0, /*maxtags*/ 230 }, 231 { 232 /* Broken tagged queuing drive */ 233 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 234 /*quirks*/0, /*mintags*/0, /*maxtags*/ 235 }, 236 { 237 /* 238 * Unfortunately, the Quantum Atlas III has the same 239 * problem as the Atlas II drives above. 240 * Reported by: "Johan Granlund" <johan@granlund.nu> 241 * 242 * For future reference, the drive with the problem was: 243 * QUANTUM QM39100TD-SW N1B0 244 * 245 * It's possible that Quantum will fix the problem in later 246 * firmware revisions. If that happens, the quirk entry 247 * will need to be made specific to the firmware revisions 248 * with the problem. 249 * 250 */ 251 /* Reports QUEUE FULL for temporary resource shortages */ 252 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 253 /*quirks*/0, /*mintags*/24, /*maxtags*/32 254 }, 255 { 256 /* 257 * 18 Gig Atlas III, same problem as the 9G version. 258 * Reported by: Andre Albsmeier 259 * <andre.albsmeier@mchp.siemens.de> 260 * 261 * For future reference, the drive with the problem was: 262 * QUANTUM QM318000TD-S N491 263 */ 264 /* Reports QUEUE FULL for temporary resource shortages */ 265 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 266 /*quirks*/0, /*mintags*/24, /*maxtags*/32 267 }, 268 { 269 /* 270 * Broken tagged queuing drive 271 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 272 * and: Martin Renters <martin@tdc.on.ca> 273 */ 274 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 275 /*quirks*/0, /*mintags*/0, /*maxtags*/ 276 }, 277 /* 278 * The Seagate Medalist Pro drives have very poor write 279 * performance with anything more than 2 tags. 280 * 281 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 282 * Drive: <SEAGATE ST36530N 1444> 283 * 284 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 285 * Drive: <SEAGATE ST34520W 1281> 286 * 287 * No one has actually reported that the 9G version 288 * (ST39140*) of the Medalist Pro has the same problem, but 289 * we're assuming that it does because the 4G and 6.5G 290 * versions of the drive are broken. 291 */ 292 { 293 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 294 /*quirks*/0, /*mintags*/2, /*maxtags*/2 295 }, 296 { 297 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 298 /*quirks*/0, /*mintags*/2, /*maxtags*/2 299 }, 300 { 301 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 302 /*quirks*/0, /*mintags*/2, /*maxtags*/2 303 }, 304 { 305 /* 306 * Experiences command timeouts under load with a 307 * tag count higher than 55. 308 */ 309 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 310 /*quirks*/0, /*mintags*/2, /*maxtags*/55 311 }, 312 { 313 /* 314 * Slow when tagged queueing is enabled. Write performance 315 * steadily drops off with more and more concurrent 316 * transactions. Best sequential write performance with 317 * tagged queueing turned off and write caching turned on. 318 * 319 * PR: kern/10398 320 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 321 * Drive: DCAS-34330 w/ "S65A" firmware. 322 * 323 * The drive with the problem had the "S65A" firmware 324 * revision, and has also been reported (by Stephen J. 325 * Roznowski <sjr@home.net>) for a drive with the "S61A" 326 * firmware revision. 327 * 328 * Although no one has reported problems with the 2 gig 329 * version of the DCAS drive, the assumption is that it 330 * has the same problems as the 4 gig version. Therefore 331 * this quirk entries disables tagged queueing for all 332 * DCAS drives. 333 */ 334 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 335 /*quirks*/0, /*mintags*/0, /*maxtags*/ 336 }, 337 { 338 /* Broken tagged queuing drive */ 339 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 340 /*quirks*/0, /*mintags*/0, /*maxtags*/ 341 }, 342 { 343 /* Broken tagged queuing drive */ 344 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 345 /*quirks*/0, /*mintags*/0, /*maxtags*/ 346 }, 347 { 348 /* This does not support other than LUN 0 */ 349 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 350 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 351 }, 352 { 353 /* 354 * Broken tagged queuing drive. 355 * Submitted by: 356 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 357 * in PR kern/9535 358 */ 359 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 360 /*quirks*/0, /*mintags*/0, /*maxtags*/ 361 }, 362 { 363 /* 364 * Slow when tagged queueing is enabled. (1.5MB/sec versus 365 * 8MB/sec.) 366 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 367 * Best performance with these drives is achieved with 368 * tagged queueing turned off, and write caching turned on. 369 */ 370 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 371 /*quirks*/0, /*mintags*/0, /*maxtags*/ 372 }, 373 { 374 /* 375 * Slow when tagged queueing is enabled. (1.5MB/sec versus 376 * 8MB/sec.) 377 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 378 * Best performance with these drives is achieved with 379 * tagged queueing turned off, and write caching turned on. 380 */ 381 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 382 /*quirks*/0, /*mintags*/0, /*maxtags*/ 383 }, 384 { 385 /* 386 * Doesn't handle queue full condition correctly, 387 * so we need to limit maxtags to what the device 388 * can handle instead of determining this automatically. 389 */ 390 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 391 /*quirks*/0, /*mintags*/2, /*maxtags*/32 392 }, 393 { 394 /* Really only one LUN */ 395 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 396 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 397 }, 398 { 399 /* I can't believe we need a quirk for DPT volumes. */ 400 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 401 CAM_QUIRK_NOLUNS, 402 /*mintags*/0, /*maxtags*/255 403 }, 404 { 405 /* 406 * Many Sony CDROM drives don't like multi-LUN probing. 407 */ 408 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 409 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 410 }, 411 { 412 /* 413 * This drive doesn't like multiple LUN probing. 414 * Submitted by: Parag Patel <parag@cgt.com> 415 */ 416 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 417 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 418 }, 419 { 420 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 421 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 422 }, 423 { 424 /* 425 * The 8200 doesn't like multi-lun probing, and probably 426 * don't like serial number requests either. 427 */ 428 { 429 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 430 "EXB-8200*", "*" 431 }, 432 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 433 }, 434 { 435 /* 436 * Let's try the same as above, but for a drive that says 437 * it's an IPL-6860 but is actually an EXB 8200. 438 */ 439 { 440 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 441 "IPL-6860*", "*" 442 }, 443 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 444 }, 445 { 446 /* 447 * These Hitachi drives don't like multi-lun probing. 448 * The PR submitter has a DK319H, but says that the Linux 449 * kernel has a similar work-around for the DK312 and DK314, 450 * so all DK31* drives are quirked here. 451 * PR: misc/18793 452 * Submitted by: Paul Haddad <paul@pth.com> 453 */ 454 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 455 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 456 }, 457 { 458 /* 459 * The Hitachi CJ series with J8A8 firmware apparently has 460 * problems with tagged commands. 461 * PR: 23536 462 * Reported by: amagai@nue.org 463 */ 464 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 465 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 466 }, 467 { 468 /* 469 * These are the large storage arrays. 470 * Submitted by: William Carrel <william.carrel@infospace.com> 471 */ 472 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 473 CAM_QUIRK_HILUNS, 2, 1024 474 }, 475 { 476 /* 477 * This old revision of the TDC3600 is also SCSI-1, and 478 * hangs upon serial number probing. 479 */ 480 { 481 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 482 " TDC 3600", "U07:" 483 }, 484 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/ 485 }, 486 { 487 /* 488 * Would repond to all LUNs if asked for. 489 */ 490 { 491 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 492 "CP150", "*" 493 }, 494 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 495 }, 496 { 497 /* 498 * Would repond to all LUNs if asked for. 499 */ 500 { 501 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 502 "96X2*", "*" 503 }, 504 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 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*/ 510 }, 511 { 512 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 513 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 514 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 515 }, 516 { 517 /* TeraSolutions special settings for TRC-22 RAID */ 518 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 519 /*quirks*/0, /*mintags*/55, /*maxtags*/255 520 }, 521 { 522 /* Veritas Storage Appliance */ 523 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 524 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 525 }, 526 { 527 /* 528 * Would respond to all LUNs. Device type and removable 529 * flag are jumper-selectable. 530 */ 531 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 532 "Tahiti 1", "*" 533 }, 534 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 535 }, 536 { 537 /* EasyRAID E5A aka. areca ARC-6010 */ 538 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 539 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 540 }, 541 { 542 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 543 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 544 }, 545 { 546 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 547 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 548 }, 549 { 550 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 551 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 552 }, 553 { 554 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 555 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 556 }, 557 { 558 /* Default tagged queuing parameters for all devices */ 559 { 560 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 561 /*vendor*/"*", /*product*/"*", /*revision*/"*" 562 }, 563 /*quirks*/0, /*mintags*/2, /*maxtags*/255 564 }, 565 }; 566 567 static cam_status proberegister(struct cam_periph *periph, 568 void *arg); 569 static void probeschedule(struct cam_periph *probe_periph); 570 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 571 static void proberequestdefaultnegotiation(struct cam_periph *periph); 572 static int proberequestbackoff(struct cam_periph *periph, 573 struct cam_ed *device); 574 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 575 static void probe_purge_old(struct cam_path *path, 576 struct scsi_report_luns_data *new, 577 probe_flags flags); 578 static void probecleanup(struct cam_periph *periph); 579 static void scsi_find_quirk(struct cam_ed *device); 580 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 581 static void scsi_scan_lun(struct cam_periph *periph, 582 struct cam_path *path, cam_flags flags, 583 union ccb *ccb); 584 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 585 static struct cam_ed * 586 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 587 lun_id_t lun_id); 588 static void scsi_devise_transport(struct cam_path *path); 589 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 590 struct cam_path *path, 591 int async_update); 592 static void scsi_toggle_tags(struct cam_path *path); 593 static void scsi_dev_async(u_int32_t async_code, 594 struct cam_eb *bus, 595 struct cam_et *target, 596 struct cam_ed *device, 597 void *async_arg); 598 static void scsi_action(union ccb *start_ccb); 599 static void scsi_announce_periph(struct cam_periph *periph); 600 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb); 601 static void scsi_proto_announce(struct cam_ed *device); 602 static void scsi_proto_announce_sbuf(struct cam_ed *device, 603 struct sbuf *sb); 604 static void scsi_proto_denounce(struct cam_ed *device); 605 static void scsi_proto_denounce_sbuf(struct cam_ed *device, 606 struct sbuf *sb); 607 static void scsi_proto_debug_out(union ccb *ccb); 608 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *); 609 610 static struct xpt_xport_ops scsi_xport_ops = { 611 .alloc_device = scsi_alloc_device, 612 .action = scsi_action, 613 .async = scsi_dev_async, 614 .announce = scsi_announce_periph, 615 .announce_sbuf = scsi_announce_periph_sbuf, 616 }; 617 #define SCSI_XPT_XPORT(x, X) \ 618 static struct xpt_xport scsi_xport_ ## x = { \ 619 .xport = XPORT_ ## X, \ 620 .name = #x, \ 621 .ops = &scsi_xport_ops, \ 622 }; \ 623 CAM_XPT_XPORT(scsi_xport_ ## x); 624 625 SCSI_XPT_XPORT(spi, SPI); 626 SCSI_XPT_XPORT(sas, SAS); 627 SCSI_XPT_XPORT(fc, FC); 628 SCSI_XPT_XPORT(usb, USB); 629 SCSI_XPT_XPORT(iscsi, ISCSI); 630 SCSI_XPT_XPORT(srp, SRP); 631 SCSI_XPT_XPORT(ppb, PPB); 632 633 #undef SCSI_XPORT_XPORT 634 635 static struct xpt_proto_ops scsi_proto_ops = { 636 .announce = scsi_proto_announce, 637 .announce_sbuf = scsi_proto_announce_sbuf, 638 .denounce = scsi_proto_denounce, 639 .denounce_sbuf = scsi_proto_denounce_sbuf, 640 .debug_out = scsi_proto_debug_out, 641 }; 642 static struct xpt_proto scsi_proto = { 643 .proto = PROTO_SCSI, 644 .name = "scsi", 645 .ops = &scsi_proto_ops, 646 }; 647 CAM_XPT_PROTO(scsi_proto); 648 649 static void 650 probe_periph_init() 651 { 652 } 653 654 static cam_status 655 proberegister(struct cam_periph *periph, void *arg) 656 { 657 union ccb *request_ccb; /* CCB representing the probe request */ 658 probe_softc *softc; 659 660 request_ccb = (union ccb *)arg; 661 if (request_ccb == NULL) { 662 printf("proberegister: no probe CCB, " 663 "can't register device\n"); 664 return(CAM_REQ_CMP_ERR); 665 } 666 667 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 668 669 if (softc == NULL) { 670 printf("proberegister: Unable to probe new device. " 671 "Unable to allocate softc\n"); 672 return(CAM_REQ_CMP_ERR); 673 } 674 TAILQ_INIT(&softc->request_ccbs); 675 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 676 periph_links.tqe); 677 softc->flags = 0; 678 periph->softc = softc; 679 softc->periph = periph; 680 softc->action = PROBE_INVALID; 681 if (cam_periph_acquire(periph) != 0) 682 return (CAM_REQ_CMP_ERR); 683 684 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 685 scsi_devise_transport(periph->path); 686 687 /* 688 * Ensure we've waited at least a bus settle 689 * delay before attempting to probe the device. 690 * For HBAs that don't do bus resets, this won't make a difference. 691 */ 692 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 693 scsi_delay); 694 probeschedule(periph); 695 return(CAM_REQ_CMP); 696 } 697 698 static void 699 probeschedule(struct cam_periph *periph) 700 { 701 struct ccb_pathinq cpi; 702 union ccb *ccb; 703 probe_softc *softc; 704 705 softc = (probe_softc *)periph->softc; 706 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 707 708 xpt_path_inq(&cpi, periph->path); 709 710 /* 711 * If a device has gone away and another device, or the same one, 712 * is back in the same place, it should have a unit attention 713 * condition pending. It will not report the unit attention in 714 * response to an inquiry, which may leave invalid transfer 715 * negotiations in effect. The TUR will reveal the unit attention 716 * condition. Only send the TUR for lun 0, since some devices 717 * will get confused by commands other than inquiry to non-existent 718 * luns. If you think a device has gone away start your scan from 719 * lun 0. This will insure that any bogus transfer settings are 720 * invalidated. 721 * 722 * If we haven't seen the device before and the controller supports 723 * some kind of transfer negotiation, negotiate with the first 724 * sent command if no bus reset was performed at startup. This 725 * ensures that the device is not confused by transfer negotiation 726 * settings left over by loader or BIOS action. 727 */ 728 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 729 && (ccb->ccb_h.target_lun == 0)) { 730 PROBE_SET_ACTION(softc, PROBE_TUR); 731 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 732 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 733 proberequestdefaultnegotiation(periph); 734 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 735 } else { 736 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 737 } 738 739 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 740 softc->flags |= PROBE_NO_ANNOUNCE; 741 else 742 softc->flags &= ~PROBE_NO_ANNOUNCE; 743 744 if (cpi.hba_misc & PIM_EXTLUNS) 745 softc->flags |= PROBE_EXTLUN; 746 else 747 softc->flags &= ~PROBE_EXTLUN; 748 749 xpt_schedule(periph, CAM_PRIORITY_XPT); 750 } 751 752 static void 753 probestart(struct cam_periph *periph, union ccb *start_ccb) 754 { 755 /* Probe the device that our peripheral driver points to */ 756 struct ccb_scsiio *csio; 757 probe_softc *softc; 758 759 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 760 761 softc = (probe_softc *)periph->softc; 762 csio = &start_ccb->csio; 763 again: 764 765 switch (softc->action) { 766 case PROBE_TUR: 767 case PROBE_TUR_FOR_NEGOTIATION: 768 case PROBE_DV_EXIT: 769 { 770 scsi_test_unit_ready(csio, 771 /*retries*/4, 772 probedone, 773 MSG_SIMPLE_Q_TAG, 774 SSD_FULL_SIZE, 775 /*timeout*/60000); 776 break; 777 } 778 case PROBE_INQUIRY: 779 case PROBE_FULL_INQUIRY: 780 { 781 u_int inquiry_len; 782 struct scsi_inquiry_data *inq_buf; 783 784 inq_buf = &periph->path->device->inq_data; 785 786 /* 787 * If the device is currently configured, we calculate an 788 * MD5 checksum of the inquiry data, and if the serial number 789 * length is greater than 0, add the serial number data 790 * into the checksum as well. Once the inquiry and the 791 * serial number check finish, we attempt to figure out 792 * whether we still have the same device. 793 */ 794 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 795 softc->flags &= ~PROBE_INQUIRY_CKSUM; 796 } else if ((softc->flags & PROBE_INQUIRY_CKSUM) == 0) { 797 MD5Init(&softc->context); 798 MD5Update(&softc->context, (unsigned char *)inq_buf, 799 sizeof(struct scsi_inquiry_data)); 800 if (periph->path->device->serial_num_len > 0) { 801 MD5Update(&softc->context, 802 periph->path->device->serial_num, 803 periph->path->device->serial_num_len); 804 } 805 MD5Final(softc->digest, &softc->context); 806 softc->flags |= PROBE_INQUIRY_CKSUM; 807 } 808 809 if (softc->action == PROBE_INQUIRY) 810 inquiry_len = SHORT_INQUIRY_LENGTH; 811 else 812 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 813 814 /* 815 * Some parallel SCSI devices fail to send an 816 * ignore wide residue message when dealing with 817 * odd length inquiry requests. Round up to be 818 * safe. 819 */ 820 inquiry_len = roundup2(inquiry_len, 2); 821 822 scsi_inquiry(csio, 823 /*retries*/4, 824 probedone, 825 MSG_SIMPLE_Q_TAG, 826 (u_int8_t *)inq_buf, 827 inquiry_len, 828 /*evpd*/FALSE, 829 /*page_code*/0, 830 SSD_MIN_SIZE, 831 /*timeout*/60 * 1000); 832 break; 833 } 834 case PROBE_REPORT_LUNS: 835 { 836 void *rp; 837 838 rp = malloc(periph->path->target->rpl_size, 839 M_CAMXPT, M_NOWAIT | M_ZERO); 840 if (rp == NULL) { 841 struct scsi_inquiry_data *inq_buf; 842 inq_buf = &periph->path->device->inq_data; 843 xpt_print(periph->path, 844 "Unable to alloc report luns storage\n"); 845 if (INQ_DATA_TQ_ENABLED(inq_buf)) 846 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 847 else 848 PROBE_SET_ACTION(softc, 849 PROBE_SUPPORTED_VPD_LIST); 850 goto again; 851 } 852 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 853 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 854 SSD_FULL_SIZE, 60000); break; 855 break; 856 } 857 case PROBE_MODE_SENSE: 858 { 859 void *mode_buf; 860 int mode_buf_len; 861 862 mode_buf_len = sizeof(struct scsi_mode_header_6) 863 + sizeof(struct scsi_mode_blk_desc) 864 + sizeof(struct scsi_control_page); 865 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 866 if (mode_buf != NULL) { 867 scsi_mode_sense(csio, 868 /*retries*/4, 869 probedone, 870 MSG_SIMPLE_Q_TAG, 871 /*dbd*/FALSE, 872 SMS_PAGE_CTRL_CURRENT, 873 SMS_CONTROL_MODE_PAGE, 874 mode_buf, 875 mode_buf_len, 876 SSD_FULL_SIZE, 877 /*timeout*/60000); 878 break; 879 } 880 xpt_print(periph->path, "Unable to mode sense control page - " 881 "malloc failure\n"); 882 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 883 } 884 /* FALLTHROUGH */ 885 case PROBE_SUPPORTED_VPD_LIST: 886 { 887 struct scsi_vpd_supported_page_list *vpd_list; 888 struct cam_ed *device; 889 890 vpd_list = NULL; 891 device = periph->path->device; 892 893 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 894 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 895 M_NOWAIT | M_ZERO); 896 897 if (vpd_list != NULL) { 898 scsi_inquiry(csio, 899 /*retries*/4, 900 probedone, 901 MSG_SIMPLE_Q_TAG, 902 (u_int8_t *)vpd_list, 903 sizeof(*vpd_list), 904 /*evpd*/TRUE, 905 SVPD_SUPPORTED_PAGE_LIST, 906 SSD_MIN_SIZE, 907 /*timeout*/60 * 1000); 908 break; 909 } 910 done: 911 /* 912 * We'll have to do without, let our probedone 913 * routine finish up for us. 914 */ 915 start_ccb->csio.data_ptr = NULL; 916 cam_freeze_devq(periph->path); 917 cam_periph_doacquire(periph); 918 probedone(periph, start_ccb); 919 return; 920 } 921 case PROBE_DEVICE_ID: 922 { 923 struct scsi_vpd_device_id *devid; 924 925 devid = NULL; 926 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 927 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 928 M_NOWAIT | M_ZERO); 929 930 if (devid != NULL) { 931 scsi_inquiry(csio, 932 /*retries*/4, 933 probedone, 934 MSG_SIMPLE_Q_TAG, 935 (uint8_t *)devid, 936 SVPD_DEVICE_ID_MAX_SIZE, 937 /*evpd*/TRUE, 938 SVPD_DEVICE_ID, 939 SSD_MIN_SIZE, 940 /*timeout*/60 * 1000); 941 break; 942 } 943 goto done; 944 } 945 case PROBE_EXTENDED_INQUIRY: 946 { 947 struct scsi_vpd_extended_inquiry_data *ext_inq; 948 949 ext_inq = NULL; 950 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 951 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 952 M_NOWAIT | M_ZERO); 953 954 if (ext_inq != NULL) { 955 scsi_inquiry(csio, 956 /*retries*/4, 957 probedone, 958 MSG_SIMPLE_Q_TAG, 959 (uint8_t *)ext_inq, 960 sizeof(*ext_inq), 961 /*evpd*/TRUE, 962 SVPD_EXTENDED_INQUIRY_DATA, 963 SSD_MIN_SIZE, 964 /*timeout*/60 * 1000); 965 break; 966 } 967 /* 968 * We'll have to do without, let our probedone 969 * routine finish up for us. 970 */ 971 goto done; 972 } 973 case PROBE_SERIAL_NUM: 974 { 975 struct scsi_vpd_unit_serial_number *serial_buf; 976 struct cam_ed* device; 977 978 serial_buf = NULL; 979 device = periph->path->device; 980 if (device->serial_num != NULL) { 981 free(device->serial_num, M_CAMXPT); 982 device->serial_num = NULL; 983 device->serial_num_len = 0; 984 } 985 986 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 987 serial_buf = (struct scsi_vpd_unit_serial_number *) 988 malloc(sizeof(*serial_buf), M_CAMXPT, 989 M_NOWAIT|M_ZERO); 990 991 if (serial_buf != NULL) { 992 scsi_inquiry(csio, 993 /*retries*/4, 994 probedone, 995 MSG_SIMPLE_Q_TAG, 996 (u_int8_t *)serial_buf, 997 sizeof(*serial_buf), 998 /*evpd*/TRUE, 999 SVPD_UNIT_SERIAL_NUMBER, 1000 SSD_MIN_SIZE, 1001 /*timeout*/60 * 1000); 1002 break; 1003 } 1004 goto done; 1005 } 1006 case PROBE_INQUIRY_BASIC_DV1: 1007 case PROBE_INQUIRY_BASIC_DV2: 1008 { 1009 u_int inquiry_len; 1010 struct scsi_inquiry_data *inq_buf; 1011 1012 inq_buf = &periph->path->device->inq_data; 1013 inquiry_len = roundup2(SID_ADDITIONAL_LENGTH(inq_buf), 2); 1014 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 1015 if (inq_buf == NULL) { 1016 xpt_print(periph->path, "malloc failure- skipping Basic" 1017 "Domain Validation\n"); 1018 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1019 scsi_test_unit_ready(csio, 1020 /*retries*/4, 1021 probedone, 1022 MSG_SIMPLE_Q_TAG, 1023 SSD_FULL_SIZE, 1024 /*timeout*/60000); 1025 break; 1026 } 1027 1028 scsi_inquiry(csio, 1029 /*retries*/4, 1030 probedone, 1031 MSG_SIMPLE_Q_TAG, 1032 (u_int8_t *)inq_buf, 1033 inquiry_len, 1034 /*evpd*/FALSE, 1035 /*page_code*/0, 1036 SSD_MIN_SIZE, 1037 /*timeout*/60 * 1000); 1038 break; 1039 } 1040 default: 1041 panic("probestart: invalid action state 0x%x\n", softc->action); 1042 } 1043 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1044 cam_periph_doacquire(periph); 1045 xpt_action(start_ccb); 1046 } 1047 1048 static void 1049 proberequestdefaultnegotiation(struct cam_periph *periph) 1050 { 1051 struct ccb_trans_settings cts; 1052 1053 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1054 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1055 cts.type = CTS_TYPE_USER_SETTINGS; 1056 xpt_action((union ccb *)&cts); 1057 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1058 return; 1059 } 1060 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1061 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1062 xpt_action((union ccb *)&cts); 1063 } 1064 1065 /* 1066 * Backoff Negotiation Code- only pertinent for SPI devices. 1067 */ 1068 static int 1069 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1070 { 1071 struct ccb_trans_settings cts; 1072 struct ccb_trans_settings_spi *spi; 1073 1074 memset(&cts, 0, sizeof (cts)); 1075 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1076 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1077 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1078 xpt_action((union ccb *)&cts); 1079 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1080 if (bootverbose) { 1081 xpt_print(periph->path, 1082 "failed to get current device settings\n"); 1083 } 1084 return (0); 1085 } 1086 if (cts.transport != XPORT_SPI) { 1087 if (bootverbose) { 1088 xpt_print(periph->path, "not SPI transport\n"); 1089 } 1090 return (0); 1091 } 1092 spi = &cts.xport_specific.spi; 1093 1094 /* 1095 * We cannot renegotiate sync rate if we don't have one. 1096 */ 1097 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1098 if (bootverbose) { 1099 xpt_print(periph->path, "no sync rate known\n"); 1100 } 1101 return (0); 1102 } 1103 1104 /* 1105 * We'll assert that we don't have to touch PPR options- the 1106 * SIM will see what we do with period and offset and adjust 1107 * the PPR options as appropriate. 1108 */ 1109 1110 /* 1111 * A sync rate with unknown or zero offset is nonsensical. 1112 * A sync period of zero means Async. 1113 */ 1114 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1115 || spi->sync_offset == 0 || spi->sync_period == 0) { 1116 if (bootverbose) { 1117 xpt_print(periph->path, "no sync rate available\n"); 1118 } 1119 return (0); 1120 } 1121 1122 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1123 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1124 ("hit async: giving up on DV\n")); 1125 return (0); 1126 } 1127 1128 1129 /* 1130 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1131 * We don't try to remember 'last' settings to see if the SIM actually 1132 * gets into the speed we want to set. We check on the SIM telling 1133 * us that a requested speed is bad, but otherwise don't try and 1134 * check the speed due to the asynchronous and handshake nature 1135 * of speed setting. 1136 */ 1137 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1138 for (;;) { 1139 spi->sync_period++; 1140 if (spi->sync_period >= 0xf) { 1141 spi->sync_period = 0; 1142 spi->sync_offset = 0; 1143 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1144 ("setting to async for DV\n")); 1145 /* 1146 * Once we hit async, we don't want to try 1147 * any more settings. 1148 */ 1149 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1150 } else if (bootverbose) { 1151 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1152 ("DV: period 0x%x\n", spi->sync_period)); 1153 printf("setting period to 0x%x\n", spi->sync_period); 1154 } 1155 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1156 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1157 xpt_action((union ccb *)&cts); 1158 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1159 break; 1160 } 1161 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1162 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1163 if (spi->sync_period == 0) { 1164 return (0); 1165 } 1166 } 1167 return (1); 1168 } 1169 1170 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1171 1172 static void 1173 probedone(struct cam_periph *periph, union ccb *done_ccb) 1174 { 1175 probe_softc *softc; 1176 struct cam_path *path; 1177 struct scsi_inquiry_data *inq_buf; 1178 u_int32_t priority; 1179 1180 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1181 1182 softc = (probe_softc *)periph->softc; 1183 path = done_ccb->ccb_h.path; 1184 priority = done_ccb->ccb_h.pinfo.priority; 1185 cam_periph_assert(periph, MA_OWNED); 1186 1187 switch (softc->action) { 1188 case PROBE_TUR: 1189 { 1190 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1191 1192 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1193 ERESTART) { 1194 outr: 1195 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1196 cam_release_devq(path, 0, 0, 0, FALSE); 1197 return; 1198 } 1199 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1200 /* Don't wedge the queue */ 1201 xpt_release_devq(done_ccb->ccb_h.path, 1202 /*count*/1, 1203 /*run_queue*/TRUE); 1204 } 1205 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1206 xpt_release_ccb(done_ccb); 1207 xpt_schedule(periph, priority); 1208 out: 1209 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1210 cam_release_devq(path, 0, 0, 0, FALSE); 1211 cam_periph_release_locked(periph); 1212 return; 1213 } 1214 case PROBE_INQUIRY: 1215 case PROBE_FULL_INQUIRY: 1216 { 1217 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1218 u_int8_t periph_qual; 1219 1220 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1221 scsi_find_quirk(path->device); 1222 inq_buf = &path->device->inq_data; 1223 1224 periph_qual = SID_QUAL(inq_buf); 1225 1226 if (periph_qual == SID_QUAL_LU_CONNECTED || 1227 periph_qual == SID_QUAL_LU_OFFLINE) { 1228 u_int8_t len; 1229 1230 /* 1231 * We conservatively request only 1232 * SHORT_INQUIRY_LEN bytes of inquiry 1233 * information during our first try 1234 * at sending an INQUIRY. If the device 1235 * has more information to give, 1236 * perform a second request specifying 1237 * the amount of information the device 1238 * is willing to give. 1239 */ 1240 len = inq_buf->additional_length 1241 + offsetof(struct scsi_inquiry_data, 1242 additional_length) + 1; 1243 if (softc->action == PROBE_INQUIRY 1244 && len > SHORT_INQUIRY_LENGTH) { 1245 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1246 xpt_release_ccb(done_ccb); 1247 xpt_schedule(periph, priority); 1248 goto out; 1249 } 1250 1251 scsi_devise_transport(path); 1252 1253 if (path->device->lun_id == 0 && 1254 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1255 (SCSI_QUIRK(path->device)->quirks & 1256 CAM_QUIRK_NORPTLUNS) == 0) { 1257 PROBE_SET_ACTION(softc, 1258 PROBE_REPORT_LUNS); 1259 /* 1260 * Start with room for *one* lun. 1261 */ 1262 periph->path->target->rpl_size = 16; 1263 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1264 PROBE_SET_ACTION(softc, 1265 PROBE_MODE_SENSE); 1266 else 1267 PROBE_SET_ACTION(softc, 1268 PROBE_SUPPORTED_VPD_LIST); 1269 1270 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1271 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1272 xpt_acquire_device(path->device); 1273 } 1274 xpt_release_ccb(done_ccb); 1275 xpt_schedule(periph, priority); 1276 goto out; 1277 } else if (path->device->lun_id == 0 && 1278 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1279 (SCSI_QUIRK(path->device)->quirks & 1280 CAM_QUIRK_NORPTLUNS) == 0) { 1281 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1282 periph->path->target->rpl_size = 16; 1283 xpt_release_ccb(done_ccb); 1284 xpt_schedule(periph, priority); 1285 goto out; 1286 } 1287 } else if (cam_periph_error(done_ccb, 0, 1288 done_ccb->ccb_h.target_lun > 0 1289 ? SF_RETRY_UA|SF_QUIET_IR 1290 : SF_RETRY_UA) == ERESTART) { 1291 goto outr; 1292 } else { 1293 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1294 /* Don't wedge the queue */ 1295 xpt_release_devq(done_ccb->ccb_h.path, 1296 /*count*/1, /*run_queue*/TRUE); 1297 } 1298 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1299 } 1300 /* 1301 * If we get to this point, we got an error status back 1302 * from the inquiry and the error status doesn't require 1303 * automatically retrying the command. Therefore, the 1304 * inquiry failed. If we had inquiry information before 1305 * for this device, but this latest inquiry command failed, 1306 * the device has probably gone away. If this device isn't 1307 * already marked unconfigured, notify the peripheral 1308 * drivers that this device is no more. 1309 */ 1310 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1311 /* Send the async notification. */ 1312 xpt_async(AC_LOST_DEVICE, path, NULL); 1313 PROBE_SET_ACTION(softc, PROBE_INVALID); 1314 1315 xpt_release_ccb(done_ccb); 1316 break; 1317 } 1318 case PROBE_REPORT_LUNS: 1319 { 1320 struct ccb_scsiio *csio; 1321 struct scsi_report_luns_data *lp; 1322 u_int nlun, maxlun; 1323 1324 csio = &done_ccb->csio; 1325 1326 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1327 nlun = scsi_4btoul(lp->length) / 8; 1328 maxlun = (csio->dxfer_len / 8) - 1; 1329 1330 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1331 if (cam_periph_error(done_ccb, 0, 1332 done_ccb->ccb_h.target_lun > 0 ? 1333 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) == 1334 ERESTART) { 1335 goto outr; 1336 } 1337 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1338 xpt_release_devq(done_ccb->ccb_h.path, 1, 1339 TRUE); 1340 } 1341 free(lp, M_CAMXPT); 1342 lp = NULL; 1343 } else if (nlun > maxlun) { 1344 /* 1345 * Reallocate and retry to cover all luns 1346 */ 1347 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1348 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1349 nlun)); 1350 free(lp, M_CAMXPT); 1351 path->target->rpl_size = (nlun << 3) + 8; 1352 xpt_release_ccb(done_ccb); 1353 xpt_schedule(periph, priority); 1354 goto out; 1355 } else if (nlun == 0) { 1356 /* 1357 * If there don't appear to be any luns, bail. 1358 */ 1359 free(lp, M_CAMXPT); 1360 lp = NULL; 1361 } else { 1362 lun_id_t lun; 1363 int idx; 1364 1365 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1366 ("Probe: %u lun(s) reported\n", nlun)); 1367 1368 CAM_GET_LUN(lp, 0, lun); 1369 /* 1370 * If the first lun is not lun 0, then either there 1371 * is no lun 0 in the list, or the list is unsorted. 1372 */ 1373 if (lun != 0) { 1374 for (idx = 0; idx < nlun; idx++) { 1375 CAM_GET_LUN(lp, idx, lun); 1376 if (lun == 0) { 1377 break; 1378 } 1379 } 1380 if (idx != nlun) { 1381 uint8_t tlun[8]; 1382 memcpy(tlun, 1383 lp->luns[0].lundata, 8); 1384 memcpy(lp->luns[0].lundata, 1385 lp->luns[idx].lundata, 8); 1386 memcpy(lp->luns[idx].lundata, 1387 tlun, 8); 1388 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1389 ("lun 0 in position %u\n", idx)); 1390 } 1391 } 1392 /* 1393 * If we have an old lun list, We can either 1394 * retest luns that appear to have been dropped, 1395 * or just nuke them. We'll opt for the latter. 1396 * This function will also install the new list 1397 * in the target structure. 1398 */ 1399 probe_purge_old(path, lp, softc->flags); 1400 lp = NULL; 1401 } 1402 /* The processing above should either exit via a `goto 1403 * out` or leave the `lp` variable `NULL` and (if 1404 * applicable) `free()` the storage to which it had 1405 * pointed. Assert here that is the case. 1406 */ 1407 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1408 inq_buf = &path->device->inq_data; 1409 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1410 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1411 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1412 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1413 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1414 else 1415 PROBE_SET_ACTION(softc, 1416 PROBE_SUPPORTED_VPD_LIST); 1417 xpt_release_ccb(done_ccb); 1418 xpt_schedule(periph, priority); 1419 goto out; 1420 } 1421 PROBE_SET_ACTION(softc, PROBE_INVALID); 1422 xpt_release_ccb(done_ccb); 1423 break; 1424 } 1425 case PROBE_MODE_SENSE: 1426 { 1427 struct ccb_scsiio *csio; 1428 struct scsi_mode_header_6 *mode_hdr; 1429 1430 csio = &done_ccb->csio; 1431 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1432 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1433 struct scsi_control_page *page; 1434 u_int8_t *offset; 1435 1436 offset = ((u_int8_t *)&mode_hdr[1]) 1437 + mode_hdr->blk_desc_len; 1438 page = (struct scsi_control_page *)offset; 1439 path->device->queue_flags = page->queue_flags; 1440 } else if (cam_periph_error(done_ccb, 0, 1441 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1442 goto outr; 1443 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1444 /* Don't wedge the queue */ 1445 xpt_release_devq(done_ccb->ccb_h.path, 1446 /*count*/1, /*run_queue*/TRUE); 1447 } 1448 xpt_release_ccb(done_ccb); 1449 free(mode_hdr, M_CAMXPT); 1450 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1451 xpt_schedule(periph, priority); 1452 goto out; 1453 } 1454 case PROBE_SUPPORTED_VPD_LIST: 1455 { 1456 struct ccb_scsiio *csio; 1457 struct scsi_vpd_supported_page_list *page_list; 1458 1459 csio = &done_ccb->csio; 1460 page_list = 1461 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1462 1463 if (path->device->supported_vpds != NULL) { 1464 free(path->device->supported_vpds, M_CAMXPT); 1465 path->device->supported_vpds = NULL; 1466 path->device->supported_vpds_len = 0; 1467 } 1468 1469 if (page_list == NULL) { 1470 /* 1471 * Don't process the command as it was never sent 1472 */ 1473 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1474 /* Got vpd list */ 1475 path->device->supported_vpds_len = page_list->length + 1476 SVPD_SUPPORTED_PAGES_HDR_LEN; 1477 path->device->supported_vpds = (uint8_t *)page_list; 1478 xpt_release_ccb(done_ccb); 1479 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1480 xpt_schedule(periph, priority); 1481 goto out; 1482 } else if (cam_periph_error(done_ccb, 0, 1483 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1484 goto outr; 1485 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1486 /* Don't wedge the queue */ 1487 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1488 /*run_queue*/TRUE); 1489 } 1490 1491 if (page_list) 1492 free(page_list, M_CAMXPT); 1493 /* No VPDs available, skip to device check. */ 1494 csio->data_ptr = NULL; 1495 goto probe_device_check; 1496 } 1497 case PROBE_DEVICE_ID: 1498 { 1499 struct scsi_vpd_device_id *devid; 1500 struct ccb_scsiio *csio; 1501 uint32_t length = 0; 1502 1503 csio = &done_ccb->csio; 1504 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1505 1506 /* Clean up from previous instance of this device */ 1507 if (path->device->device_id != NULL) { 1508 path->device->device_id_len = 0; 1509 free(path->device->device_id, M_CAMXPT); 1510 path->device->device_id = NULL; 1511 } 1512 1513 if (devid == NULL) { 1514 /* Don't process the command as it was never sent */ 1515 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1516 length = scsi_2btoul(devid->length); 1517 if (length != 0) { 1518 /* 1519 * NB: device_id_len is actual response 1520 * size, not buffer size. 1521 */ 1522 path->device->device_id_len = length + 1523 SVPD_DEVICE_ID_HDR_LEN; 1524 path->device->device_id = (uint8_t *)devid; 1525 } 1526 } else if (cam_periph_error(done_ccb, 0, 1527 SF_RETRY_UA) == ERESTART) { 1528 goto outr; 1529 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1530 /* Don't wedge the queue */ 1531 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1532 /*run_queue*/TRUE); 1533 } 1534 1535 /* Free the device id space if we don't use it */ 1536 if (devid && length == 0) 1537 free(devid, M_CAMXPT); 1538 xpt_release_ccb(done_ccb); 1539 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1540 xpt_schedule(periph, priority); 1541 goto out; 1542 } 1543 case PROBE_EXTENDED_INQUIRY: { 1544 struct scsi_vpd_extended_inquiry_data *ext_inq; 1545 struct ccb_scsiio *csio; 1546 int32_t length = 0; 1547 1548 csio = &done_ccb->csio; 1549 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1550 csio->data_ptr; 1551 if (path->device->ext_inq != NULL) { 1552 path->device->ext_inq_len = 0; 1553 free(path->device->ext_inq, M_CAMXPT); 1554 path->device->ext_inq = NULL; 1555 } 1556 1557 if (ext_inq == NULL) { 1558 /* Don't process the command as it was never sent */ 1559 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1560 length = scsi_2btoul(ext_inq->page_length) + 1561 __offsetof(struct scsi_vpd_extended_inquiry_data, 1562 flags1); 1563 length = min(length, sizeof(*ext_inq)); 1564 length -= csio->resid; 1565 if (length > 0) { 1566 path->device->ext_inq_len = length; 1567 path->device->ext_inq = (uint8_t *)ext_inq; 1568 } 1569 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1570 ERESTART) { 1571 goto outr; 1572 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1573 /* Don't wedge the queue */ 1574 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1575 /*run_queue*/TRUE); 1576 } 1577 1578 /* Free the device id space if we don't use it */ 1579 if (ext_inq && length <= 0) 1580 free(ext_inq, M_CAMXPT); 1581 xpt_release_ccb(done_ccb); 1582 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1583 xpt_schedule(periph, priority); 1584 goto out; 1585 } 1586 1587 probe_device_check: 1588 case PROBE_SERIAL_NUM: 1589 { 1590 struct ccb_scsiio *csio; 1591 struct scsi_vpd_unit_serial_number *serial_buf; 1592 u_int32_t priority; 1593 int changed; 1594 int have_serialnum; 1595 1596 changed = 1; 1597 have_serialnum = 0; 1598 csio = &done_ccb->csio; 1599 priority = done_ccb->ccb_h.pinfo.priority; 1600 serial_buf = 1601 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1602 1603 if (serial_buf == NULL) { 1604 /* 1605 * Don't process the command as it was never sent 1606 */ 1607 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1608 && (serial_buf->length > 0)) { 1609 1610 have_serialnum = 1; 1611 path->device->serial_num = 1612 (u_int8_t *)malloc((serial_buf->length + 1), 1613 M_CAMXPT, M_NOWAIT); 1614 if (path->device->serial_num != NULL) { 1615 int start, slen; 1616 1617 start = strspn(serial_buf->serial_num, " "); 1618 slen = serial_buf->length - start; 1619 if (slen <= 0) { 1620 /* 1621 * SPC5r05 says that an all-space serial 1622 * number means no product serial number 1623 * is available 1624 */ 1625 slen = 0; 1626 } 1627 memcpy(path->device->serial_num, 1628 &serial_buf->serial_num[start], slen); 1629 path->device->serial_num_len = slen; 1630 path->device->serial_num[slen] = '\0'; 1631 } 1632 } else if (cam_periph_error(done_ccb, 0, 1633 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1634 goto outr; 1635 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1636 /* Don't wedge the queue */ 1637 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1638 /*run_queue*/TRUE); 1639 } 1640 1641 /* 1642 * Let's see if we have seen this device before. 1643 */ 1644 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1645 MD5_CTX context; 1646 u_int8_t digest[16]; 1647 1648 MD5Init(&context); 1649 1650 MD5Update(&context, 1651 (unsigned char *)&path->device->inq_data, 1652 sizeof(struct scsi_inquiry_data)); 1653 1654 if (have_serialnum) 1655 MD5Update(&context, path->device->serial_num, 1656 path->device->serial_num_len); 1657 1658 MD5Final(digest, &context); 1659 if (bcmp(softc->digest, digest, 16) == 0) 1660 changed = 0; 1661 1662 /* 1663 * XXX Do we need to do a TUR in order to ensure 1664 * that the device really hasn't changed??? 1665 */ 1666 if ((changed != 0) 1667 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1668 xpt_async(AC_LOST_DEVICE, path, NULL); 1669 } 1670 if (serial_buf != NULL) 1671 free(serial_buf, M_CAMXPT); 1672 1673 if (changed != 0) { 1674 /* 1675 * Now that we have all the necessary 1676 * information to safely perform transfer 1677 * negotiations... Controllers don't perform 1678 * any negotiation or tagged queuing until 1679 * after the first XPT_SET_TRAN_SETTINGS ccb is 1680 * received. So, on a new device, just retrieve 1681 * the user settings, and set them as the current 1682 * settings to set the device up. 1683 */ 1684 proberequestdefaultnegotiation(periph); 1685 xpt_release_ccb(done_ccb); 1686 1687 /* 1688 * Perform a TUR to allow the controller to 1689 * perform any necessary transfer negotiation. 1690 */ 1691 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1692 xpt_schedule(periph, priority); 1693 goto out; 1694 } 1695 xpt_release_ccb(done_ccb); 1696 break; 1697 } 1698 case PROBE_TUR_FOR_NEGOTIATION: 1699 case PROBE_DV_EXIT: 1700 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1701 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1702 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1703 goto outr; 1704 } 1705 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1706 /* Don't wedge the queue */ 1707 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1708 /*run_queue*/TRUE); 1709 } 1710 /* 1711 * Do Domain Validation for lun 0 on devices that claim 1712 * to support Synchronous Transfer modes. 1713 */ 1714 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1715 && done_ccb->ccb_h.target_lun == 0 1716 && (path->device->inq_data.flags & SID_Sync) != 0 1717 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1718 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1719 ("Begin Domain Validation\n")); 1720 path->device->flags |= CAM_DEV_IN_DV; 1721 xpt_release_ccb(done_ccb); 1722 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1723 xpt_schedule(periph, priority); 1724 goto out; 1725 } 1726 if (softc->action == PROBE_DV_EXIT) { 1727 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1728 ("Leave Domain Validation\n")); 1729 } 1730 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1731 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1732 xpt_acquire_device(path->device); 1733 } 1734 path->device->flags &= 1735 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1736 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1737 /* Inform the XPT that a new device has been found */ 1738 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1739 xpt_action(done_ccb); 1740 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1741 done_ccb); 1742 } 1743 PROBE_SET_ACTION(softc, PROBE_DONE); 1744 xpt_release_ccb(done_ccb); 1745 break; 1746 case PROBE_INQUIRY_BASIC_DV1: 1747 case PROBE_INQUIRY_BASIC_DV2: 1748 { 1749 struct scsi_inquiry_data *nbuf; 1750 struct ccb_scsiio *csio; 1751 1752 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1753 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1754 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1755 goto outr; 1756 } 1757 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1758 /* Don't wedge the queue */ 1759 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1760 /*run_queue*/TRUE); 1761 } 1762 csio = &done_ccb->csio; 1763 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1764 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1765 xpt_print(path, 1766 "inquiry data fails comparison at DV%d step\n", 1767 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1768 if (proberequestbackoff(periph, path->device)) { 1769 path->device->flags &= ~CAM_DEV_IN_DV; 1770 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1771 } else { 1772 /* give up */ 1773 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1774 } 1775 free(nbuf, M_CAMXPT); 1776 xpt_release_ccb(done_ccb); 1777 xpt_schedule(periph, priority); 1778 goto out; 1779 } 1780 free(nbuf, M_CAMXPT); 1781 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1782 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1783 xpt_release_ccb(done_ccb); 1784 xpt_schedule(periph, priority); 1785 goto out; 1786 } 1787 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1788 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1789 ("Leave Domain Validation Successfully\n")); 1790 } 1791 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1792 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1793 xpt_acquire_device(path->device); 1794 } 1795 path->device->flags &= 1796 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1797 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1798 /* Inform the XPT that a new device has been found */ 1799 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1800 xpt_action(done_ccb); 1801 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1802 done_ccb); 1803 } 1804 PROBE_SET_ACTION(softc, PROBE_DONE); 1805 xpt_release_ccb(done_ccb); 1806 break; 1807 } 1808 default: 1809 panic("probedone: invalid action state 0x%x\n", softc->action); 1810 } 1811 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1812 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1813 done_ccb->ccb_h.status = CAM_REQ_CMP; 1814 xpt_done(done_ccb); 1815 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1816 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1817 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1818 cam_release_devq(path, 0, 0, 0, FALSE); 1819 cam_periph_release_locked(periph); 1820 cam_periph_invalidate(periph); 1821 cam_periph_release_locked(periph); 1822 } else { 1823 probeschedule(periph); 1824 goto out; 1825 } 1826 } 1827 1828 static void 1829 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1830 probe_flags flags) 1831 { 1832 struct cam_path *tp; 1833 struct scsi_report_luns_data *old; 1834 u_int idx1, idx2, nlun_old, nlun_new; 1835 lun_id_t this_lun; 1836 u_int8_t *ol, *nl; 1837 1838 if (path->target == NULL) { 1839 return; 1840 } 1841 mtx_lock(&path->target->luns_mtx); 1842 old = path->target->luns; 1843 path->target->luns = new; 1844 mtx_unlock(&path->target->luns_mtx); 1845 if (old == NULL) 1846 return; 1847 nlun_old = scsi_4btoul(old->length) / 8; 1848 nlun_new = scsi_4btoul(new->length) / 8; 1849 1850 /* 1851 * We are not going to assume sorted lists. Deal. 1852 */ 1853 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1854 ol = old->luns[idx1].lundata; 1855 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1856 nl = new->luns[idx2].lundata; 1857 if (memcmp(nl, ol, 8) == 0) { 1858 break; 1859 } 1860 } 1861 if (idx2 < nlun_new) { 1862 continue; 1863 } 1864 /* 1865 * An 'old' item not in the 'new' list. 1866 * Nuke it. Except that if it is lun 0, 1867 * that would be what the probe state 1868 * machine is currently working on, 1869 * so we won't do that. 1870 */ 1871 CAM_GET_LUN(old, idx1, this_lun); 1872 if (this_lun == 0) { 1873 continue; 1874 } 1875 1876 /* 1877 * We also cannot nuke it if it is 1878 * not in a lun format we understand 1879 * and replace the LUN with a "simple" LUN 1880 * if that is all the HBA supports. 1881 */ 1882 if (!(flags & PROBE_EXTLUN)) { 1883 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1884 continue; 1885 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1886 } 1887 1888 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1889 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1890 xpt_async(AC_LOST_DEVICE, tp, NULL); 1891 xpt_free_path(tp); 1892 } 1893 } 1894 free(old, M_CAMXPT); 1895 } 1896 1897 static void 1898 probecleanup(struct cam_periph *periph) 1899 { 1900 free(periph->softc, M_CAMXPT); 1901 } 1902 1903 static void 1904 scsi_find_quirk(struct cam_ed *device) 1905 { 1906 struct scsi_quirk_entry *quirk; 1907 caddr_t match; 1908 1909 match = cam_quirkmatch((caddr_t)&device->inq_data, 1910 (caddr_t)scsi_quirk_table, 1911 nitems(scsi_quirk_table), 1912 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1913 1914 if (match == NULL) 1915 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1916 1917 quirk = (struct scsi_quirk_entry *)match; 1918 device->quirk = quirk; 1919 device->mintags = quirk->mintags; 1920 device->maxtags = quirk->maxtags; 1921 } 1922 1923 static int 1924 sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1925 { 1926 int error, val; 1927 1928 val = cam_srch_hi; 1929 error = sysctl_handle_int(oidp, &val, 0, req); 1930 if (error != 0 || req->newptr == NULL) 1931 return (error); 1932 if (val == 0 || val == 1) { 1933 cam_srch_hi = val; 1934 return (0); 1935 } else { 1936 return (EINVAL); 1937 } 1938 } 1939 1940 typedef struct { 1941 union ccb *request_ccb; 1942 struct ccb_pathinq *cpi; 1943 int counter; 1944 int lunindex[0]; 1945 } scsi_scan_bus_info; 1946 1947 /* 1948 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1949 * As the scan progresses, scsi_scan_bus is used as the 1950 * callback on completion function. 1951 */ 1952 static void 1953 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1954 { 1955 struct mtx *mtx; 1956 1957 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1958 ("scsi_scan_bus\n")); 1959 switch (request_ccb->ccb_h.func_code) { 1960 case XPT_SCAN_BUS: 1961 case XPT_SCAN_TGT: 1962 { 1963 scsi_scan_bus_info *scan_info; 1964 union ccb *work_ccb, *reset_ccb; 1965 struct cam_path *path; 1966 u_int i; 1967 u_int low_target, max_target; 1968 u_int initiator_id; 1969 1970 /* Find out the characteristics of the bus */ 1971 work_ccb = xpt_alloc_ccb_nowait(); 1972 if (work_ccb == NULL) { 1973 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1974 xpt_done(request_ccb); 1975 return; 1976 } 1977 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1978 request_ccb->ccb_h.pinfo.priority); 1979 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1980 xpt_action(work_ccb); 1981 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1982 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1983 xpt_free_ccb(work_ccb); 1984 xpt_done(request_ccb); 1985 return; 1986 } 1987 1988 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1989 /* 1990 * Can't scan the bus on an adapter that 1991 * cannot perform the initiator role. 1992 */ 1993 request_ccb->ccb_h.status = CAM_REQ_CMP; 1994 xpt_free_ccb(work_ccb); 1995 xpt_done(request_ccb); 1996 return; 1997 } 1998 1999 /* We may need to reset bus first, if we haven't done it yet. */ 2000 if ((work_ccb->cpi.hba_inquiry & 2001 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 2002 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 2003 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 2004 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 2005 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 2006 CAM_PRIORITY_NONE); 2007 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 2008 xpt_action(reset_ccb); 2009 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 2010 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 2011 xpt_free_ccb(reset_ccb); 2012 xpt_free_ccb(work_ccb); 2013 xpt_done(request_ccb); 2014 return; 2015 } 2016 xpt_free_ccb(reset_ccb); 2017 } 2018 2019 /* Save some state for use while we probe for devices */ 2020 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 2021 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 2022 if (scan_info == NULL) { 2023 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2024 xpt_free_ccb(work_ccb); 2025 xpt_done(request_ccb); 2026 return; 2027 } 2028 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2029 ("SCAN start for %p\n", scan_info)); 2030 scan_info->request_ccb = request_ccb; 2031 scan_info->cpi = &work_ccb->cpi; 2032 2033 /* Cache on our stack so we can work asynchronously */ 2034 max_target = scan_info->cpi->max_target; 2035 low_target = 0; 2036 initiator_id = scan_info->cpi->initiator_id; 2037 2038 2039 /* 2040 * We can scan all targets in parallel, or do it sequentially. 2041 */ 2042 2043 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2044 max_target = low_target = request_ccb->ccb_h.target_id; 2045 scan_info->counter = 0; 2046 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2047 max_target = 0; 2048 scan_info->counter = 0; 2049 } else { 2050 scan_info->counter = scan_info->cpi->max_target + 1; 2051 if (scan_info->cpi->initiator_id < scan_info->counter) { 2052 scan_info->counter--; 2053 } 2054 } 2055 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2056 mtx_unlock(mtx); 2057 2058 for (i = low_target; i <= max_target; i++) { 2059 cam_status status; 2060 if (i == initiator_id) 2061 continue; 2062 2063 status = xpt_create_path(&path, NULL, 2064 request_ccb->ccb_h.path_id, 2065 i, 0); 2066 if (status != CAM_REQ_CMP) { 2067 printf("scsi_scan_bus: xpt_create_path failed" 2068 " with status %#x, bus scan halted\n", 2069 status); 2070 free(scan_info, M_CAMXPT); 2071 request_ccb->ccb_h.status = status; 2072 xpt_free_ccb(work_ccb); 2073 xpt_done(request_ccb); 2074 break; 2075 } 2076 work_ccb = xpt_alloc_ccb_nowait(); 2077 if (work_ccb == NULL) { 2078 xpt_free_ccb((union ccb *)scan_info->cpi); 2079 free(scan_info, M_CAMXPT); 2080 xpt_free_path(path); 2081 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2082 xpt_done(request_ccb); 2083 break; 2084 } 2085 xpt_setup_ccb(&work_ccb->ccb_h, path, 2086 request_ccb->ccb_h.pinfo.priority); 2087 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2088 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2089 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2090 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2091 work_ccb->crcn.flags = request_ccb->crcn.flags; 2092 xpt_action(work_ccb); 2093 } 2094 2095 mtx_lock(mtx); 2096 break; 2097 } 2098 case XPT_SCAN_LUN: 2099 { 2100 cam_status status; 2101 struct cam_path *path, *oldpath; 2102 scsi_scan_bus_info *scan_info; 2103 struct cam_et *target; 2104 struct cam_ed *device, *nextdev; 2105 int next_target; 2106 path_id_t path_id; 2107 target_id_t target_id; 2108 lun_id_t lun_id; 2109 2110 oldpath = request_ccb->ccb_h.path; 2111 2112 status = cam_ccb_status(request_ccb); 2113 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2114 path_id = request_ccb->ccb_h.path_id; 2115 target_id = request_ccb->ccb_h.target_id; 2116 lun_id = request_ccb->ccb_h.target_lun; 2117 target = request_ccb->ccb_h.path->target; 2118 next_target = 1; 2119 2120 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2121 mtx_lock(mtx); 2122 mtx_lock(&target->luns_mtx); 2123 if (target->luns) { 2124 lun_id_t first; 2125 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2126 2127 /* 2128 * Make sure we skip over lun 0 if it's the first member 2129 * of the list as we've actually just finished probing 2130 * it. 2131 */ 2132 CAM_GET_LUN(target->luns, 0, first); 2133 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2134 scan_info->lunindex[target_id]++; 2135 } 2136 2137 /* 2138 * Skip any LUNs that the HBA can't deal with. 2139 */ 2140 while (scan_info->lunindex[target_id] < nluns) { 2141 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2142 CAM_GET_LUN(target->luns, 2143 scan_info->lunindex[target_id], 2144 lun_id); 2145 break; 2146 } 2147 2148 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2149 scan_info->lunindex[target_id])) { 2150 CAM_GET_SIMPLE_LUN(target->luns, 2151 scan_info->lunindex[target_id], 2152 lun_id); 2153 break; 2154 } 2155 2156 scan_info->lunindex[target_id]++; 2157 } 2158 2159 if (scan_info->lunindex[target_id] < nluns) { 2160 mtx_unlock(&target->luns_mtx); 2161 next_target = 0; 2162 CAM_DEBUG(request_ccb->ccb_h.path, 2163 CAM_DEBUG_PROBE, 2164 ("next lun to try at index %u is %jx\n", 2165 scan_info->lunindex[target_id], 2166 (uintmax_t)lun_id)); 2167 scan_info->lunindex[target_id]++; 2168 } else { 2169 mtx_unlock(&target->luns_mtx); 2170 /* We're done with scanning all luns. */ 2171 } 2172 } else { 2173 mtx_unlock(&target->luns_mtx); 2174 device = request_ccb->ccb_h.path->device; 2175 /* Continue sequential LUN scan if: */ 2176 /* -- we have more LUNs that need recheck */ 2177 mtx_lock(&target->bus->eb_mtx); 2178 nextdev = device; 2179 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2180 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2181 break; 2182 mtx_unlock(&target->bus->eb_mtx); 2183 if (nextdev != NULL) { 2184 next_target = 0; 2185 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2186 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2187 next_target = 1; 2188 /* -- this LUN is connected and its SCSI version 2189 * allows more LUNs. */ 2190 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2191 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2192 CAN_SRCH_HI_DENSE(device)) 2193 next_target = 0; 2194 /* -- this LUN is disconnected, its SCSI version 2195 * allows more LUNs and we guess they may be. */ 2196 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2197 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2198 CAN_SRCH_HI_SPARSE(device)) 2199 next_target = 0; 2200 } 2201 if (next_target == 0) { 2202 lun_id++; 2203 if (lun_id > scan_info->cpi->max_lun) 2204 next_target = 1; 2205 } 2206 } 2207 2208 /* 2209 * Check to see if we scan any further luns. 2210 */ 2211 if (next_target) { 2212 int done; 2213 2214 /* 2215 * Free the current request path- we're done with it. 2216 */ 2217 xpt_free_path(oldpath); 2218 hop_again: 2219 done = 0; 2220 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2221 done = 1; 2222 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2223 scan_info->counter++; 2224 if (scan_info->counter == 2225 scan_info->cpi->initiator_id) { 2226 scan_info->counter++; 2227 } 2228 if (scan_info->counter >= 2229 scan_info->cpi->max_target+1) { 2230 done = 1; 2231 } 2232 } else { 2233 scan_info->counter--; 2234 if (scan_info->counter == 0) { 2235 done = 1; 2236 } 2237 } 2238 if (done) { 2239 mtx_unlock(mtx); 2240 xpt_free_ccb(request_ccb); 2241 xpt_free_ccb((union ccb *)scan_info->cpi); 2242 request_ccb = scan_info->request_ccb; 2243 CAM_DEBUG(request_ccb->ccb_h.path, 2244 CAM_DEBUG_TRACE, 2245 ("SCAN done for %p\n", scan_info)); 2246 free(scan_info, M_CAMXPT); 2247 request_ccb->ccb_h.status = CAM_REQ_CMP; 2248 xpt_done(request_ccb); 2249 break; 2250 } 2251 2252 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2253 mtx_unlock(mtx); 2254 xpt_free_ccb(request_ccb); 2255 break; 2256 } 2257 status = xpt_create_path(&path, NULL, 2258 scan_info->request_ccb->ccb_h.path_id, 2259 scan_info->counter, 0); 2260 if (status != CAM_REQ_CMP) { 2261 mtx_unlock(mtx); 2262 printf("scsi_scan_bus: xpt_create_path failed" 2263 " with status %#x, bus scan halted\n", 2264 status); 2265 xpt_free_ccb(request_ccb); 2266 xpt_free_ccb((union ccb *)scan_info->cpi); 2267 request_ccb = scan_info->request_ccb; 2268 free(scan_info, M_CAMXPT); 2269 request_ccb->ccb_h.status = status; 2270 xpt_done(request_ccb); 2271 break; 2272 } 2273 xpt_setup_ccb(&request_ccb->ccb_h, path, 2274 request_ccb->ccb_h.pinfo.priority); 2275 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2276 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2277 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2278 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2279 request_ccb->crcn.flags = 2280 scan_info->request_ccb->crcn.flags; 2281 } else { 2282 status = xpt_create_path(&path, NULL, 2283 path_id, target_id, lun_id); 2284 /* 2285 * Free the old request path- we're done with it. We 2286 * do this *after* creating the new path so that 2287 * we don't remove a target that has our lun list 2288 * in the case that lun 0 is not present. 2289 */ 2290 xpt_free_path(oldpath); 2291 if (status != CAM_REQ_CMP) { 2292 printf("scsi_scan_bus: xpt_create_path failed " 2293 "with status %#x, halting LUN scan\n", 2294 status); 2295 goto hop_again; 2296 } 2297 xpt_setup_ccb(&request_ccb->ccb_h, path, 2298 request_ccb->ccb_h.pinfo.priority); 2299 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2300 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2301 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2302 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2303 request_ccb->crcn.flags = 2304 scan_info->request_ccb->crcn.flags; 2305 } 2306 mtx_unlock(mtx); 2307 xpt_action(request_ccb); 2308 break; 2309 } 2310 default: 2311 break; 2312 } 2313 } 2314 2315 static void 2316 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2317 cam_flags flags, union ccb *request_ccb) 2318 { 2319 struct ccb_pathinq cpi; 2320 cam_status status; 2321 struct cam_path *new_path; 2322 struct cam_periph *old_periph; 2323 int lock; 2324 2325 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2326 2327 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2328 cpi.ccb_h.func_code = XPT_PATH_INQ; 2329 xpt_action((union ccb *)&cpi); 2330 2331 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2332 if (request_ccb != NULL) { 2333 request_ccb->ccb_h.status = cpi.ccb_h.status; 2334 xpt_done(request_ccb); 2335 } 2336 return; 2337 } 2338 2339 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2340 /* 2341 * Can't scan the bus on an adapter that 2342 * cannot perform the initiator role. 2343 */ 2344 if (request_ccb != NULL) { 2345 request_ccb->ccb_h.status = CAM_REQ_CMP; 2346 xpt_done(request_ccb); 2347 } 2348 return; 2349 } 2350 2351 if (request_ccb == NULL) { 2352 request_ccb = xpt_alloc_ccb_nowait(); 2353 if (request_ccb == NULL) { 2354 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2355 "can't continue\n"); 2356 return; 2357 } 2358 status = xpt_create_path(&new_path, NULL, 2359 path->bus->path_id, 2360 path->target->target_id, 2361 path->device->lun_id); 2362 if (status != CAM_REQ_CMP) { 2363 xpt_print(path, "scsi_scan_lun: can't create path, " 2364 "can't continue\n"); 2365 xpt_free_ccb(request_ccb); 2366 return; 2367 } 2368 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2369 request_ccb->ccb_h.cbfcnp = xptscandone; 2370 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2371 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2372 request_ccb->crcn.flags = flags; 2373 } 2374 2375 lock = (xpt_path_owned(path) == 0); 2376 if (lock) 2377 xpt_path_lock(path); 2378 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2379 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2380 probe_softc *softc; 2381 2382 softc = (probe_softc *)old_periph->softc; 2383 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2384 &request_ccb->ccb_h, periph_links.tqe); 2385 } else { 2386 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2387 xpt_done(request_ccb); 2388 } 2389 } else { 2390 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2391 probestart, "probe", 2392 CAM_PERIPH_BIO, 2393 request_ccb->ccb_h.path, NULL, 0, 2394 request_ccb); 2395 2396 if (status != CAM_REQ_CMP) { 2397 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2398 "returned an error, can't continue probe\n"); 2399 request_ccb->ccb_h.status = status; 2400 xpt_done(request_ccb); 2401 } 2402 } 2403 if (lock) 2404 xpt_path_unlock(path); 2405 } 2406 2407 static void 2408 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2409 { 2410 2411 xpt_free_path(done_ccb->ccb_h.path); 2412 xpt_free_ccb(done_ccb); 2413 } 2414 2415 static struct cam_ed * 2416 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2417 { 2418 struct scsi_quirk_entry *quirk; 2419 struct cam_ed *device; 2420 2421 device = xpt_alloc_device(bus, target, lun_id); 2422 if (device == NULL) 2423 return (NULL); 2424 2425 /* 2426 * Take the default quirk entry until we have inquiry 2427 * data and can determine a better quirk to use. 2428 */ 2429 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2430 device->quirk = (void *)quirk; 2431 device->mintags = quirk->mintags; 2432 device->maxtags = quirk->maxtags; 2433 bzero(&device->inq_data, sizeof(device->inq_data)); 2434 device->inq_flags = 0; 2435 device->queue_flags = 0; 2436 device->serial_num = NULL; 2437 device->serial_num_len = 0; 2438 device->device_id = NULL; 2439 device->device_id_len = 0; 2440 device->supported_vpds = NULL; 2441 device->supported_vpds_len = 0; 2442 return (device); 2443 } 2444 2445 static void 2446 scsi_devise_transport(struct cam_path *path) 2447 { 2448 struct ccb_pathinq cpi; 2449 struct ccb_trans_settings cts; 2450 struct scsi_inquiry_data *inq_buf; 2451 2452 /* Get transport information from the SIM */ 2453 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2454 cpi.ccb_h.func_code = XPT_PATH_INQ; 2455 xpt_action((union ccb *)&cpi); 2456 2457 inq_buf = NULL; 2458 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2459 inq_buf = &path->device->inq_data; 2460 path->device->protocol = PROTO_SCSI; 2461 path->device->protocol_version = 2462 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2463 path->device->transport = cpi.transport; 2464 path->device->transport_version = cpi.transport_version; 2465 2466 /* 2467 * Any device not using SPI3 features should 2468 * be considered SPI2 or lower. 2469 */ 2470 if (inq_buf != NULL) { 2471 if (path->device->transport == XPORT_SPI 2472 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2473 && path->device->transport_version > 2) 2474 path->device->transport_version = 2; 2475 } else { 2476 struct cam_ed* otherdev; 2477 2478 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2479 otherdev != NULL; 2480 otherdev = TAILQ_NEXT(otherdev, links)) { 2481 if (otherdev != path->device) 2482 break; 2483 } 2484 2485 if (otherdev != NULL) { 2486 /* 2487 * Initially assume the same versioning as 2488 * prior luns for this target. 2489 */ 2490 path->device->protocol_version = 2491 otherdev->protocol_version; 2492 path->device->transport_version = 2493 otherdev->transport_version; 2494 } else { 2495 /* Until we know better, opt for safety */ 2496 path->device->protocol_version = 2; 2497 if (path->device->transport == XPORT_SPI) 2498 path->device->transport_version = 2; 2499 else 2500 path->device->transport_version = 0; 2501 } 2502 } 2503 2504 /* 2505 * XXX 2506 * For a device compliant with SPC-2 we should be able 2507 * to determine the transport version supported by 2508 * scrutinizing the version descriptors in the 2509 * inquiry buffer. 2510 */ 2511 2512 /* Tell the controller what we think */ 2513 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2514 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2515 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2516 cts.transport = path->device->transport; 2517 cts.transport_version = path->device->transport_version; 2518 cts.protocol = path->device->protocol; 2519 cts.protocol_version = path->device->protocol_version; 2520 cts.proto_specific.valid = 0; 2521 cts.xport_specific.valid = 0; 2522 xpt_action((union ccb *)&cts); 2523 } 2524 2525 static void 2526 scsi_dev_advinfo(union ccb *start_ccb) 2527 { 2528 struct cam_ed *device; 2529 struct ccb_dev_advinfo *cdai; 2530 off_t amt; 2531 2532 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2533 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2534 device = start_ccb->ccb_h.path->device; 2535 cdai = &start_ccb->cdai; 2536 switch(cdai->buftype) { 2537 case CDAI_TYPE_SCSI_DEVID: 2538 if (cdai->flags & CDAI_FLAG_STORE) 2539 return; 2540 cdai->provsiz = device->device_id_len; 2541 if (device->device_id_len == 0) 2542 break; 2543 amt = device->device_id_len; 2544 if (cdai->provsiz > cdai->bufsiz) 2545 amt = cdai->bufsiz; 2546 memcpy(cdai->buf, device->device_id, amt); 2547 break; 2548 case CDAI_TYPE_SERIAL_NUM: 2549 if (cdai->flags & CDAI_FLAG_STORE) 2550 return; 2551 cdai->provsiz = device->serial_num_len; 2552 if (device->serial_num_len == 0) 2553 break; 2554 amt = device->serial_num_len; 2555 if (cdai->provsiz > cdai->bufsiz) 2556 amt = cdai->bufsiz; 2557 memcpy(cdai->buf, device->serial_num, amt); 2558 break; 2559 case CDAI_TYPE_PHYS_PATH: 2560 if (cdai->flags & CDAI_FLAG_STORE) { 2561 if (device->physpath != NULL) { 2562 free(device->physpath, M_CAMXPT); 2563 device->physpath = NULL; 2564 device->physpath_len = 0; 2565 } 2566 /* Clear existing buffer if zero length */ 2567 if (cdai->bufsiz == 0) 2568 break; 2569 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2570 if (device->physpath == NULL) { 2571 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2572 return; 2573 } 2574 device->physpath_len = cdai->bufsiz; 2575 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2576 } else { 2577 cdai->provsiz = device->physpath_len; 2578 if (device->physpath_len == 0) 2579 break; 2580 amt = device->physpath_len; 2581 if (cdai->provsiz > cdai->bufsiz) 2582 amt = cdai->bufsiz; 2583 memcpy(cdai->buf, device->physpath, amt); 2584 } 2585 break; 2586 case CDAI_TYPE_RCAPLONG: 2587 if (cdai->flags & CDAI_FLAG_STORE) { 2588 if (device->rcap_buf != NULL) { 2589 free(device->rcap_buf, M_CAMXPT); 2590 device->rcap_buf = NULL; 2591 } 2592 2593 device->rcap_len = cdai->bufsiz; 2594 /* Clear existing buffer if zero length */ 2595 if (cdai->bufsiz == 0) 2596 break; 2597 2598 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2599 M_NOWAIT); 2600 if (device->rcap_buf == NULL) { 2601 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2602 return; 2603 } 2604 2605 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2606 } else { 2607 cdai->provsiz = device->rcap_len; 2608 if (device->rcap_len == 0) 2609 break; 2610 amt = device->rcap_len; 2611 if (cdai->provsiz > cdai->bufsiz) 2612 amt = cdai->bufsiz; 2613 memcpy(cdai->buf, device->rcap_buf, amt); 2614 } 2615 break; 2616 case CDAI_TYPE_EXT_INQ: 2617 /* 2618 * We fetch extended inquiry data during probe, if 2619 * available. We don't allow changing it. 2620 */ 2621 if (cdai->flags & CDAI_FLAG_STORE) 2622 return; 2623 cdai->provsiz = device->ext_inq_len; 2624 if (device->ext_inq_len == 0) 2625 break; 2626 amt = device->ext_inq_len; 2627 if (cdai->provsiz > cdai->bufsiz) 2628 amt = cdai->bufsiz; 2629 memcpy(cdai->buf, device->ext_inq, amt); 2630 break; 2631 default: 2632 return; 2633 } 2634 start_ccb->ccb_h.status = CAM_REQ_CMP; 2635 2636 if (cdai->flags & CDAI_FLAG_STORE) { 2637 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2638 (void *)(uintptr_t)cdai->buftype); 2639 } 2640 } 2641 2642 static void 2643 scsi_action(union ccb *start_ccb) 2644 { 2645 2646 switch (start_ccb->ccb_h.func_code) { 2647 case XPT_SET_TRAN_SETTINGS: 2648 { 2649 scsi_set_transfer_settings(&start_ccb->cts, 2650 start_ccb->ccb_h.path, 2651 /*async_update*/FALSE); 2652 break; 2653 } 2654 case XPT_SCAN_BUS: 2655 case XPT_SCAN_TGT: 2656 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2657 break; 2658 case XPT_SCAN_LUN: 2659 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2660 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2661 start_ccb); 2662 break; 2663 case XPT_DEV_ADVINFO: 2664 { 2665 scsi_dev_advinfo(start_ccb); 2666 break; 2667 } 2668 default: 2669 xpt_action_default(start_ccb); 2670 break; 2671 } 2672 } 2673 2674 static void 2675 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2676 int async_update) 2677 { 2678 struct ccb_pathinq cpi; 2679 struct ccb_trans_settings cur_cts; 2680 struct ccb_trans_settings_scsi *scsi; 2681 struct ccb_trans_settings_scsi *cur_scsi; 2682 struct scsi_inquiry_data *inq_data; 2683 struct cam_ed *device; 2684 2685 if (path == NULL || (device = path->device) == NULL) { 2686 cts->ccb_h.status = CAM_PATH_INVALID; 2687 xpt_done((union ccb *)cts); 2688 return; 2689 } 2690 2691 if (cts->protocol == PROTO_UNKNOWN 2692 || cts->protocol == PROTO_UNSPECIFIED) { 2693 cts->protocol = device->protocol; 2694 cts->protocol_version = device->protocol_version; 2695 } 2696 2697 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2698 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2699 cts->protocol_version = device->protocol_version; 2700 2701 if (cts->protocol != device->protocol) { 2702 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2703 cts->protocol, device->protocol); 2704 cts->protocol = device->protocol; 2705 } 2706 2707 if (cts->protocol_version > device->protocol_version) { 2708 if (bootverbose) { 2709 xpt_print(path, "Down reving Protocol " 2710 "Version from %d to %d?\n", cts->protocol_version, 2711 device->protocol_version); 2712 } 2713 cts->protocol_version = device->protocol_version; 2714 } 2715 2716 if (cts->transport == XPORT_UNKNOWN 2717 || cts->transport == XPORT_UNSPECIFIED) { 2718 cts->transport = device->transport; 2719 cts->transport_version = device->transport_version; 2720 } 2721 2722 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2723 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2724 cts->transport_version = device->transport_version; 2725 2726 if (cts->transport != device->transport) { 2727 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2728 cts->transport, device->transport); 2729 cts->transport = device->transport; 2730 } 2731 2732 if (cts->transport_version > device->transport_version) { 2733 if (bootverbose) { 2734 xpt_print(path, "Down reving Transport " 2735 "Version from %d to %d?\n", cts->transport_version, 2736 device->transport_version); 2737 } 2738 cts->transport_version = device->transport_version; 2739 } 2740 2741 /* 2742 * Nothing more of interest to do unless 2743 * this is a device connected via the 2744 * SCSI protocol. 2745 */ 2746 if (cts->protocol != PROTO_SCSI) { 2747 if (async_update == FALSE) 2748 xpt_action_default((union ccb *)cts); 2749 return; 2750 } 2751 2752 inq_data = &device->inq_data; 2753 scsi = &cts->proto_specific.scsi; 2754 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2755 cpi.ccb_h.func_code = XPT_PATH_INQ; 2756 xpt_action((union ccb *)&cpi); 2757 2758 /* SCSI specific sanity checking */ 2759 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2760 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2761 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2762 || (device->mintags == 0)) { 2763 /* 2764 * Can't tag on hardware that doesn't support tags, 2765 * doesn't have it enabled, or has broken tag support. 2766 */ 2767 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2768 } 2769 2770 if (async_update == FALSE) { 2771 /* 2772 * Perform sanity checking against what the 2773 * controller and device can do. 2774 */ 2775 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2776 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2777 cur_cts.type = cts->type; 2778 xpt_action((union ccb *)&cur_cts); 2779 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2780 return; 2781 } 2782 cur_scsi = &cur_cts.proto_specific.scsi; 2783 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2784 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2785 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2786 } 2787 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2788 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2789 } 2790 2791 /* SPI specific sanity checking */ 2792 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2793 u_int spi3caps; 2794 struct ccb_trans_settings_spi *spi; 2795 struct ccb_trans_settings_spi *cur_spi; 2796 2797 spi = &cts->xport_specific.spi; 2798 2799 cur_spi = &cur_cts.xport_specific.spi; 2800 2801 /* Fill in any gaps in what the user gave us */ 2802 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2803 spi->sync_period = cur_spi->sync_period; 2804 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2805 spi->sync_period = 0; 2806 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2807 spi->sync_offset = cur_spi->sync_offset; 2808 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2809 spi->sync_offset = 0; 2810 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2811 spi->ppr_options = cur_spi->ppr_options; 2812 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2813 spi->ppr_options = 0; 2814 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2815 spi->bus_width = cur_spi->bus_width; 2816 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2817 spi->bus_width = 0; 2818 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2819 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2820 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2821 } 2822 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2823 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2824 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2825 && (inq_data->flags & SID_Sync) == 0 2826 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2827 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2828 /* Force async */ 2829 spi->sync_period = 0; 2830 spi->sync_offset = 0; 2831 } 2832 2833 switch (spi->bus_width) { 2834 case MSG_EXT_WDTR_BUS_32_BIT: 2835 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2836 || (inq_data->flags & SID_WBus32) != 0 2837 || cts->type == CTS_TYPE_USER_SETTINGS) 2838 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2839 break; 2840 /* Fall Through to 16-bit */ 2841 case MSG_EXT_WDTR_BUS_16_BIT: 2842 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2843 || (inq_data->flags & SID_WBus16) != 0 2844 || cts->type == CTS_TYPE_USER_SETTINGS) 2845 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2846 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2847 break; 2848 } 2849 /* Fall Through to 8-bit */ 2850 default: /* New bus width?? */ 2851 case MSG_EXT_WDTR_BUS_8_BIT: 2852 /* All targets can do this */ 2853 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2854 break; 2855 } 2856 2857 spi3caps = cpi.xport_specific.spi.ppr_options; 2858 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2859 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2860 spi3caps &= inq_data->spi3data; 2861 2862 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2863 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2864 2865 if ((spi3caps & SID_SPI_IUS) == 0) 2866 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2867 2868 if ((spi3caps & SID_SPI_QAS) == 0) 2869 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2870 2871 /* No SPI Transfer settings are allowed unless we are wide */ 2872 if (spi->bus_width == 0) 2873 spi->ppr_options = 0; 2874 2875 if ((spi->valid & CTS_SPI_VALID_DISC) 2876 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2877 /* 2878 * Can't tag queue without disconnection. 2879 */ 2880 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2881 scsi->valid |= CTS_SCSI_VALID_TQ; 2882 } 2883 2884 /* 2885 * If we are currently performing tagged transactions to 2886 * this device and want to change its negotiation parameters, 2887 * go non-tagged for a bit to give the controller a chance to 2888 * negotiate unhampered by tag messages. 2889 */ 2890 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2891 && (device->inq_flags & SID_CmdQue) != 0 2892 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2893 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2894 CTS_SPI_VALID_SYNC_OFFSET| 2895 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2896 scsi_toggle_tags(path); 2897 } 2898 2899 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2900 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2901 int device_tagenb; 2902 2903 /* 2904 * If we are transitioning from tags to no-tags or 2905 * vice-versa, we need to carefully freeze and restart 2906 * the queue so that we don't overlap tagged and non-tagged 2907 * commands. We also temporarily stop tags if there is 2908 * a change in transfer negotiation settings to allow 2909 * "tag-less" negotiation. 2910 */ 2911 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2912 || (device->inq_flags & SID_CmdQue) != 0) 2913 device_tagenb = TRUE; 2914 else 2915 device_tagenb = FALSE; 2916 2917 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2918 && device_tagenb == FALSE) 2919 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2920 && device_tagenb == TRUE)) { 2921 2922 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2923 /* 2924 * Delay change to use tags until after a 2925 * few commands have gone to this device so 2926 * the controller has time to perform transfer 2927 * negotiations without tagged messages getting 2928 * in the way. 2929 */ 2930 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2931 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2932 } else { 2933 xpt_stop_tags(path); 2934 } 2935 } 2936 } 2937 if (async_update == FALSE) 2938 xpt_action_default((union ccb *)cts); 2939 } 2940 2941 static void 2942 scsi_toggle_tags(struct cam_path *path) 2943 { 2944 struct cam_ed *dev; 2945 2946 /* 2947 * Give controllers a chance to renegotiate 2948 * before starting tag operations. We 2949 * "toggle" tagged queuing off then on 2950 * which causes the tag enable command delay 2951 * counter to come into effect. 2952 */ 2953 dev = path->device; 2954 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2955 || ((dev->inq_flags & SID_CmdQue) != 0 2956 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2957 struct ccb_trans_settings cts; 2958 2959 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2960 cts.protocol = PROTO_SCSI; 2961 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2962 cts.transport = XPORT_UNSPECIFIED; 2963 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2964 cts.proto_specific.scsi.flags = 0; 2965 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2966 scsi_set_transfer_settings(&cts, path, 2967 /*async_update*/TRUE); 2968 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2969 scsi_set_transfer_settings(&cts, path, 2970 /*async_update*/TRUE); 2971 } 2972 } 2973 2974 /* 2975 * Handle any per-device event notifications that require action by the XPT. 2976 */ 2977 static void 2978 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2979 struct cam_ed *device, void *async_arg) 2980 { 2981 cam_status status; 2982 struct cam_path newpath; 2983 2984 /* 2985 * We only need to handle events for real devices. 2986 */ 2987 if (target->target_id == CAM_TARGET_WILDCARD 2988 || device->lun_id == CAM_LUN_WILDCARD) 2989 return; 2990 2991 /* 2992 * We need our own path with wildcards expanded to 2993 * handle certain types of events. 2994 */ 2995 if ((async_code == AC_SENT_BDR) 2996 || (async_code == AC_BUS_RESET) 2997 || (async_code == AC_INQ_CHANGED)) 2998 status = xpt_compile_path(&newpath, NULL, 2999 bus->path_id, 3000 target->target_id, 3001 device->lun_id); 3002 else 3003 status = CAM_REQ_CMP_ERR; 3004 3005 if (status == CAM_REQ_CMP) { 3006 3007 /* 3008 * Allow transfer negotiation to occur in a 3009 * tag free environment and after settle delay. 3010 */ 3011 if (async_code == AC_SENT_BDR 3012 || async_code == AC_BUS_RESET) { 3013 cam_freeze_devq(&newpath); 3014 cam_release_devq(&newpath, 3015 RELSIM_RELEASE_AFTER_TIMEOUT, 3016 /*reduction*/0, 3017 /*timeout*/scsi_delay, 3018 /*getcount_only*/0); 3019 scsi_toggle_tags(&newpath); 3020 } 3021 3022 if (async_code == AC_INQ_CHANGED) { 3023 /* 3024 * We've sent a start unit command, or 3025 * something similar to a device that 3026 * may have caused its inquiry data to 3027 * change. So we re-scan the device to 3028 * refresh the inquiry data for it. 3029 */ 3030 scsi_scan_lun(newpath.periph, &newpath, 3031 CAM_EXPECT_INQ_CHANGE, NULL); 3032 } 3033 xpt_release_path(&newpath); 3034 } else if (async_code == AC_LOST_DEVICE && 3035 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3036 device->flags |= CAM_DEV_UNCONFIGURED; 3037 xpt_release_device(device); 3038 } else if (async_code == AC_TRANSFER_NEG) { 3039 struct ccb_trans_settings *settings; 3040 struct cam_path path; 3041 3042 settings = (struct ccb_trans_settings *)async_arg; 3043 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3044 device->lun_id); 3045 scsi_set_transfer_settings(settings, &path, 3046 /*async_update*/TRUE); 3047 xpt_release_path(&path); 3048 } 3049 } 3050 3051 static void 3052 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3053 { 3054 struct ccb_pathinq cpi; 3055 struct cam_path *path = periph->path; 3056 3057 cam_periph_assert(periph, MA_OWNED); 3058 3059 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3060 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3061 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3062 xpt_action((union ccb*)cts); 3063 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3064 return; 3065 3066 /* Ask the SIM for its base transfer speed */ 3067 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3068 cpi.ccb_h.func_code = XPT_PATH_INQ; 3069 xpt_action((union ccb *)&cpi); 3070 3071 /* Report connection speed */ 3072 *speed = cpi.base_transfer_speed; 3073 *freq = 0; 3074 3075 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3076 struct ccb_trans_settings_spi *spi = 3077 &cts->xport_specific.spi; 3078 3079 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3080 && spi->sync_offset != 0) { 3081 *freq = scsi_calc_syncsrate(spi->sync_period); 3082 *speed = *freq; 3083 } 3084 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3085 *speed *= (0x01 << spi->bus_width); 3086 } 3087 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3088 struct ccb_trans_settings_fc *fc = 3089 &cts->xport_specific.fc; 3090 3091 if (fc->valid & CTS_FC_VALID_SPEED) 3092 *speed = fc->bitrate; 3093 } 3094 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3095 struct ccb_trans_settings_sas *sas = 3096 &cts->xport_specific.sas; 3097 3098 if (sas->valid & CTS_SAS_VALID_SPEED) 3099 *speed = sas->bitrate; 3100 } 3101 } 3102 3103 static void 3104 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3105 { 3106 struct ccb_trans_settings cts; 3107 u_int speed, freq, mb; 3108 3109 _scsi_announce_periph(periph, &speed, &freq, &cts); 3110 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3111 return; 3112 3113 mb = speed / 1000; 3114 if (mb > 0) 3115 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3116 periph->periph_name, periph->unit_number, 3117 mb, speed % 1000); 3118 else 3119 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3120 periph->unit_number, speed); 3121 /* Report additional information about SPI connections */ 3122 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3123 struct ccb_trans_settings_spi *spi; 3124 3125 spi = &cts.xport_specific.spi; 3126 if (freq != 0) { 3127 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3128 freq % 1000, 3129 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3130 ? " DT" : "", 3131 spi->sync_offset); 3132 } 3133 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3134 && spi->bus_width > 0) { 3135 if (freq != 0) { 3136 sbuf_printf(sb, ", "); 3137 } else { 3138 sbuf_printf(sb, " ("); 3139 } 3140 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3141 } else if (freq != 0) { 3142 sbuf_printf(sb, ")"); 3143 } 3144 } 3145 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3146 struct ccb_trans_settings_fc *fc; 3147 3148 fc = &cts.xport_specific.fc; 3149 if (fc->valid & CTS_FC_VALID_WWNN) 3150 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3151 if (fc->valid & CTS_FC_VALID_WWPN) 3152 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3153 if (fc->valid & CTS_FC_VALID_PORT) 3154 sbuf_printf(sb, " PortID 0x%x", fc->port); 3155 } 3156 sbuf_printf(sb, "\n"); 3157 } 3158 3159 static void 3160 scsi_announce_periph(struct cam_periph *periph) 3161 { 3162 struct ccb_trans_settings cts; 3163 u_int speed, freq, mb; 3164 3165 _scsi_announce_periph(periph, &speed, &freq, &cts); 3166 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3167 return; 3168 3169 mb = speed / 1000; 3170 if (mb > 0) 3171 printf("%s%d: %d.%03dMB/s transfers", 3172 periph->periph_name, periph->unit_number, 3173 mb, speed % 1000); 3174 else 3175 printf("%s%d: %dKB/s transfers", periph->periph_name, 3176 periph->unit_number, speed); 3177 /* Report additional information about SPI connections */ 3178 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3179 struct ccb_trans_settings_spi *spi; 3180 3181 spi = &cts.xport_specific.spi; 3182 if (freq != 0) { 3183 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3184 freq % 1000, 3185 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3186 ? " DT" : "", 3187 spi->sync_offset); 3188 } 3189 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3190 && spi->bus_width > 0) { 3191 if (freq != 0) { 3192 printf(", "); 3193 } else { 3194 printf(" ("); 3195 } 3196 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3197 } else if (freq != 0) { 3198 printf(")"); 3199 } 3200 } 3201 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3202 struct ccb_trans_settings_fc *fc; 3203 3204 fc = &cts.xport_specific.fc; 3205 if (fc->valid & CTS_FC_VALID_WWNN) 3206 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3207 if (fc->valid & CTS_FC_VALID_WWPN) 3208 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3209 if (fc->valid & CTS_FC_VALID_PORT) 3210 printf(" PortID 0x%x", fc->port); 3211 } 3212 printf("\n"); 3213 } 3214 3215 static void 3216 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3217 { 3218 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3219 } 3220 3221 static void 3222 scsi_proto_announce(struct cam_ed *device) 3223 { 3224 scsi_print_inquiry(&device->inq_data); 3225 } 3226 3227 static void 3228 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3229 { 3230 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3231 } 3232 3233 static void 3234 scsi_proto_denounce(struct cam_ed *device) 3235 { 3236 scsi_print_inquiry_short(&device->inq_data); 3237 } 3238 3239 static void 3240 scsi_proto_debug_out(union ccb *ccb) 3241 { 3242 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3243 struct cam_ed *device; 3244 3245 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3246 return; 3247 3248 device = ccb->ccb_h.path->device; 3249 CAM_DEBUG(ccb->ccb_h.path, 3250 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3251 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3252 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3253 }
Cache object: f69211d11ae13482a693535a6f08ea37
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]