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sys/cam/scsi/scsi_xpt.c
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1 /*- 2 * Implementation of the SCSI Transport 3 * 4 * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs. 5 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification, immediately at the beginning of the file. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD: releng/10.4/sys/cam/scsi/scsi_xpt.c 311402 2017-01-05 11:20:31Z mav $"); 32 33 #include <sys/param.h> 34 #include <sys/bus.h> 35 #include <sys/systm.h> 36 #include <sys/types.h> 37 #include <sys/malloc.h> 38 #include <sys/kernel.h> 39 #include <sys/time.h> 40 #include <sys/conf.h> 41 #include <sys/fcntl.h> 42 #include <sys/md5.h> 43 #include <sys/interrupt.h> 44 #include <sys/sbuf.h> 45 46 #include <sys/lock.h> 47 #include <sys/mutex.h> 48 #include <sys/sysctl.h> 49 50 #include <cam/cam.h> 51 #include <cam/cam_ccb.h> 52 #include <cam/cam_queue.h> 53 #include <cam/cam_periph.h> 54 #include <cam/cam_sim.h> 55 #include <cam/cam_xpt.h> 56 #include <cam/cam_xpt_sim.h> 57 #include <cam/cam_xpt_periph.h> 58 #include <cam/cam_xpt_internal.h> 59 #include <cam/cam_debug.h> 60 61 #include <cam/scsi/scsi_all.h> 62 #include <cam/scsi/scsi_message.h> 63 #include <cam/scsi/scsi_pass.h> 64 #include <machine/stdarg.h> /* for xpt_print below */ 65 #include "opt_cam.h" 66 67 struct scsi_quirk_entry { 68 struct scsi_inquiry_pattern inq_pat; 69 u_int8_t quirks; 70 #define CAM_QUIRK_NOLUNS 0x01 71 #define CAM_QUIRK_NOVPDS 0x02 72 #define CAM_QUIRK_HILUNS 0x04 73 #define CAM_QUIRK_NOHILUNS 0x08 74 #define CAM_QUIRK_NORPTLUNS 0x10 75 u_int mintags; 76 u_int maxtags; 77 }; 78 #define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk)) 79 80 static int cam_srch_hi = 0; 81 TUNABLE_INT("kern.cam.cam_srch_hi", &cam_srch_hi); 82 static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS); 83 SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT|CTLFLAG_RW, 0, 0, 84 sysctl_cam_search_luns, "I", 85 "allow search above LUN 7 for SCSI3 and greater devices"); 86 87 #define CAM_SCSI2_MAXLUN 8 88 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 89 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 90 RPL_LUNDATA_ATYP_PERIPH) || \ 91 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 92 RPL_LUNDATA_ATYP_FLAT)) 93 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 94 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 95 RPL_LUNDATA_ATYP_PERIPH) { \ 96 (lval) = (lp)->luns[(i)].lundata[1]; \ 97 } else { \ 98 (lval) = (lp)->luns[(i)].lundata[0]; \ 99 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 100 (lval) <<= 8; \ 101 (lval) |= (lp)->luns[(i)].lundata[1]; \ 102 } 103 #define CAM_GET_LUN(lp, i, lval) \ 104 (lval) = scsi_4btoul((lp)->luns[(i)].lundata); \ 105 (lval) = ((lval) >> 16) | ((lval) << 16); 106 #define CAM_LUN_ONLY_32BITS(lp, i) \ 107 (scsi_4btoul(&((lp)->luns[(i)].lundata[4])) == 0) 108 109 /* 110 * If we're not quirked to search <= the first 8 luns 111 * and we are either quirked to search above lun 8, 112 * or we're > SCSI-2 and we've enabled hilun searching, 113 * or we're > SCSI-2 and the last lun was a success, 114 * we can look for luns above lun 8. 115 */ 116 #define CAN_SRCH_HI_SPARSE(dv) \ 117 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 118 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 119 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 120 121 #define CAN_SRCH_HI_DENSE(dv) \ 122 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 123 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 124 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 125 126 static periph_init_t probe_periph_init; 127 128 static struct periph_driver probe_driver = 129 { 130 probe_periph_init, "probe", 131 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 132 CAM_PERIPH_DRV_EARLY 133 }; 134 135 PERIPHDRIVER_DECLARE(probe, probe_driver); 136 137 typedef enum { 138 PROBE_TUR, 139 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 140 PROBE_FULL_INQUIRY, 141 PROBE_REPORT_LUNS, 142 PROBE_MODE_SENSE, 143 PROBE_SUPPORTED_VPD_LIST, 144 PROBE_DEVICE_ID, 145 PROBE_EXTENDED_INQUIRY, 146 PROBE_SERIAL_NUM, 147 PROBE_TUR_FOR_NEGOTIATION, 148 PROBE_INQUIRY_BASIC_DV1, 149 PROBE_INQUIRY_BASIC_DV2, 150 PROBE_DV_EXIT, 151 PROBE_DONE, 152 PROBE_INVALID 153 } probe_action; 154 155 static char *probe_action_text[] = { 156 "PROBE_TUR", 157 "PROBE_INQUIRY", 158 "PROBE_FULL_INQUIRY", 159 "PROBE_REPORT_LUNS", 160 "PROBE_MODE_SENSE", 161 "PROBE_SUPPORTED_VPD_LIST", 162 "PROBE_DEVICE_ID", 163 "PROBE_EXTENDED_INQUIRY", 164 "PROBE_SERIAL_NUM", 165 "PROBE_TUR_FOR_NEGOTIATION", 166 "PROBE_INQUIRY_BASIC_DV1", 167 "PROBE_INQUIRY_BASIC_DV2", 168 "PROBE_DV_EXIT", 169 "PROBE_DONE", 170 "PROBE_INVALID" 171 }; 172 173 #define PROBE_SET_ACTION(softc, newaction) \ 174 do { \ 175 char **text; \ 176 text = probe_action_text; \ 177 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 178 ("Probe %s to %s\n", text[(softc)->action], \ 179 text[(newaction)])); \ 180 (softc)->action = (newaction); \ 181 } while(0) 182 183 typedef enum { 184 PROBE_INQUIRY_CKSUM = 0x01, 185 PROBE_SERIAL_CKSUM = 0x02, 186 PROBE_NO_ANNOUNCE = 0x04, 187 PROBE_EXTLUN = 0x08 188 } probe_flags; 189 190 typedef struct { 191 TAILQ_HEAD(, ccb_hdr) request_ccbs; 192 probe_action action; 193 union ccb saved_ccb; 194 probe_flags flags; 195 MD5_CTX context; 196 u_int8_t digest[16]; 197 struct cam_periph *periph; 198 } probe_softc; 199 200 static const char quantum[] = "QUANTUM"; 201 static const char sony[] = "SONY"; 202 static const char west_digital[] = "WDIGTL"; 203 static const char samsung[] = "SAMSUNG"; 204 static const char seagate[] = "SEAGATE"; 205 static const char microp[] = "MICROP"; 206 207 static struct scsi_quirk_entry scsi_quirk_table[] = 208 { 209 { 210 /* Reports QUEUE FULL for temporary resource shortages */ 211 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 212 /*quirks*/0, /*mintags*/24, /*maxtags*/32 213 }, 214 { 215 /* Reports QUEUE FULL for temporary resource shortages */ 216 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 217 /*quirks*/0, /*mintags*/24, /*maxtags*/32 218 }, 219 { 220 /* Reports QUEUE FULL for temporary resource shortages */ 221 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 222 /*quirks*/0, /*mintags*/24, /*maxtags*/32 223 }, 224 { 225 /* Broken tagged queuing drive */ 226 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 227 /*quirks*/0, /*mintags*/0, /*maxtags*/ 228 }, 229 { 230 /* Broken tagged queuing drive */ 231 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 232 /*quirks*/0, /*mintags*/0, /*maxtags*/ 233 }, 234 { 235 /* Broken tagged queuing drive */ 236 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 237 /*quirks*/0, /*mintags*/0, /*maxtags*/ 238 }, 239 { 240 /* 241 * Unfortunately, the Quantum Atlas III has the same 242 * problem as the Atlas II drives above. 243 * Reported by: "Johan Granlund" <johan@granlund.nu> 244 * 245 * For future reference, the drive with the problem was: 246 * QUANTUM QM39100TD-SW N1B0 247 * 248 * It's possible that Quantum will fix the problem in later 249 * firmware revisions. If that happens, the quirk entry 250 * will need to be made specific to the firmware revisions 251 * with the problem. 252 * 253 */ 254 /* Reports QUEUE FULL for temporary resource shortages */ 255 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 256 /*quirks*/0, /*mintags*/24, /*maxtags*/32 257 }, 258 { 259 /* 260 * 18 Gig Atlas III, same problem as the 9G version. 261 * Reported by: Andre Albsmeier 262 * <andre.albsmeier@mchp.siemens.de> 263 * 264 * For future reference, the drive with the problem was: 265 * QUANTUM QM318000TD-S N491 266 */ 267 /* Reports QUEUE FULL for temporary resource shortages */ 268 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 269 /*quirks*/0, /*mintags*/24, /*maxtags*/32 270 }, 271 { 272 /* 273 * Broken tagged queuing drive 274 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 275 * and: Martin Renters <martin@tdc.on.ca> 276 */ 277 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 278 /*quirks*/0, /*mintags*/0, /*maxtags*/ 279 }, 280 /* 281 * The Seagate Medalist Pro drives have very poor write 282 * performance with anything more than 2 tags. 283 * 284 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 285 * Drive: <SEAGATE ST36530N 1444> 286 * 287 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 288 * Drive: <SEAGATE ST34520W 1281> 289 * 290 * No one has actually reported that the 9G version 291 * (ST39140*) of the Medalist Pro has the same problem, but 292 * we're assuming that it does because the 4G and 6.5G 293 * versions of the drive are broken. 294 */ 295 { 296 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 297 /*quirks*/0, /*mintags*/2, /*maxtags*/2 298 }, 299 { 300 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 301 /*quirks*/0, /*mintags*/2, /*maxtags*/2 302 }, 303 { 304 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 305 /*quirks*/0, /*mintags*/2, /*maxtags*/2 306 }, 307 { 308 /* 309 * Experiences command timeouts under load with a 310 * tag count higher than 55. 311 */ 312 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 313 /*quirks*/0, /*mintags*/2, /*maxtags*/55 314 }, 315 { 316 /* 317 * Slow when tagged queueing is enabled. Write performance 318 * steadily drops off with more and more concurrent 319 * transactions. Best sequential write performance with 320 * tagged queueing turned off and write caching turned on. 321 * 322 * PR: kern/10398 323 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 324 * Drive: DCAS-34330 w/ "S65A" firmware. 325 * 326 * The drive with the problem had the "S65A" firmware 327 * revision, and has also been reported (by Stephen J. 328 * Roznowski <sjr@home.net>) for a drive with the "S61A" 329 * firmware revision. 330 * 331 * Although no one has reported problems with the 2 gig 332 * version of the DCAS drive, the assumption is that it 333 * has the same problems as the 4 gig version. Therefore 334 * this quirk entries disables tagged queueing for all 335 * DCAS drives. 336 */ 337 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 338 /*quirks*/0, /*mintags*/0, /*maxtags*/ 339 }, 340 { 341 /* Broken tagged queuing drive */ 342 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 343 /*quirks*/0, /*mintags*/0, /*maxtags*/ 344 }, 345 { 346 /* Broken tagged queuing drive */ 347 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 348 /*quirks*/0, /*mintags*/0, /*maxtags*/ 349 }, 350 { 351 /* This does not support other than LUN 0 */ 352 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 353 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 354 }, 355 { 356 /* 357 * Broken tagged queuing drive. 358 * Submitted by: 359 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 360 * in PR kern/9535 361 */ 362 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 363 /*quirks*/0, /*mintags*/0, /*maxtags*/ 364 }, 365 { 366 /* 367 * Slow when tagged queueing is enabled. (1.5MB/sec versus 368 * 8MB/sec.) 369 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 370 * Best performance with these drives is achieved with 371 * tagged queueing turned off, and write caching turned on. 372 */ 373 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 374 /*quirks*/0, /*mintags*/0, /*maxtags*/ 375 }, 376 { 377 /* 378 * Slow when tagged queueing is enabled. (1.5MB/sec versus 379 * 8MB/sec.) 380 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 381 * Best performance with these drives is achieved with 382 * tagged queueing turned off, and write caching turned on. 383 */ 384 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 385 /*quirks*/0, /*mintags*/0, /*maxtags*/ 386 }, 387 { 388 /* 389 * Doesn't handle queue full condition correctly, 390 * so we need to limit maxtags to what the device 391 * can handle instead of determining this automatically. 392 */ 393 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 394 /*quirks*/0, /*mintags*/2, /*maxtags*/32 395 }, 396 { 397 /* Really only one LUN */ 398 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 399 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 400 }, 401 { 402 /* I can't believe we need a quirk for DPT volumes. */ 403 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 404 CAM_QUIRK_NOLUNS, 405 /*mintags*/0, /*maxtags*/255 406 }, 407 { 408 /* 409 * Many Sony CDROM drives don't like multi-LUN probing. 410 */ 411 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 412 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 413 }, 414 { 415 /* 416 * This drive doesn't like multiple LUN probing. 417 * Submitted by: Parag Patel <parag@cgt.com> 418 */ 419 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 420 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 421 }, 422 { 423 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 424 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 425 }, 426 { 427 /* 428 * The 8200 doesn't like multi-lun probing, and probably 429 * don't like serial number requests either. 430 */ 431 { 432 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 433 "EXB-8200*", "*" 434 }, 435 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 436 }, 437 { 438 /* 439 * Let's try the same as above, but for a drive that says 440 * it's an IPL-6860 but is actually an EXB 8200. 441 */ 442 { 443 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 444 "IPL-6860*", "*" 445 }, 446 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 447 }, 448 { 449 /* 450 * These Hitachi drives don't like multi-lun probing. 451 * The PR submitter has a DK319H, but says that the Linux 452 * kernel has a similar work-around for the DK312 and DK314, 453 * so all DK31* drives are quirked here. 454 * PR: misc/18793 455 * Submitted by: Paul Haddad <paul@pth.com> 456 */ 457 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 458 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 459 }, 460 { 461 /* 462 * The Hitachi CJ series with J8A8 firmware apparently has 463 * problems with tagged commands. 464 * PR: 23536 465 * Reported by: amagai@nue.org 466 */ 467 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 468 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 469 }, 470 { 471 /* 472 * These are the large storage arrays. 473 * Submitted by: William Carrel <william.carrel@infospace.com> 474 */ 475 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 476 CAM_QUIRK_HILUNS, 2, 1024 477 }, 478 { 479 /* 480 * This old revision of the TDC3600 is also SCSI-1, and 481 * hangs upon serial number probing. 482 */ 483 { 484 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 485 " TDC 3600", "U07:" 486 }, 487 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/ 488 }, 489 { 490 /* 491 * Would repond to all LUNs if asked for. 492 */ 493 { 494 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 495 "CP150", "*" 496 }, 497 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 498 }, 499 { 500 /* 501 * Would repond to all LUNs if asked for. 502 */ 503 { 504 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 505 "96X2*", "*" 506 }, 507 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 508 }, 509 { 510 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 511 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 512 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 513 }, 514 { 515 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 516 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 517 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 518 }, 519 { 520 /* TeraSolutions special settings for TRC-22 RAID */ 521 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 522 /*quirks*/0, /*mintags*/55, /*maxtags*/255 523 }, 524 { 525 /* Veritas Storage Appliance */ 526 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 527 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 528 }, 529 { 530 /* 531 * Would respond to all LUNs. Device type and removable 532 * flag are jumper-selectable. 533 */ 534 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 535 "Tahiti 1", "*" 536 }, 537 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 538 }, 539 { 540 /* EasyRAID E5A aka. areca ARC-6010 */ 541 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 542 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 543 }, 544 { 545 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 546 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 547 }, 548 { 549 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 550 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 551 }, 552 { 553 /* Default tagged queuing parameters for all devices */ 554 { 555 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 556 /*vendor*/"*", /*product*/"*", /*revision*/"*" 557 }, 558 /*quirks*/0, /*mintags*/2, /*maxtags*/255 559 }, 560 }; 561 562 static const int scsi_quirk_table_size = 563 sizeof(scsi_quirk_table) / sizeof(*scsi_quirk_table); 564 565 static cam_status proberegister(struct cam_periph *periph, 566 void *arg); 567 static void probeschedule(struct cam_periph *probe_periph); 568 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 569 static void proberequestdefaultnegotiation(struct cam_periph *periph); 570 static int proberequestbackoff(struct cam_periph *periph, 571 struct cam_ed *device); 572 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 573 static void probe_purge_old(struct cam_path *path, 574 struct scsi_report_luns_data *new, 575 probe_flags flags); 576 static void probecleanup(struct cam_periph *periph); 577 static void scsi_find_quirk(struct cam_ed *device); 578 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 579 static void scsi_scan_lun(struct cam_periph *periph, 580 struct cam_path *path, cam_flags flags, 581 union ccb *ccb); 582 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 583 static struct cam_ed * 584 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 585 lun_id_t lun_id); 586 static void scsi_devise_transport(struct cam_path *path); 587 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 588 struct cam_path *path, 589 int async_update); 590 static void scsi_toggle_tags(struct cam_path *path); 591 static void scsi_dev_async(u_int32_t async_code, 592 struct cam_eb *bus, 593 struct cam_et *target, 594 struct cam_ed *device, 595 void *async_arg); 596 static void scsi_action(union ccb *start_ccb); 597 static void scsi_announce_periph(struct cam_periph *periph); 598 599 static struct xpt_xport scsi_xport = { 600 .alloc_device = scsi_alloc_device, 601 .action = scsi_action, 602 .async = scsi_dev_async, 603 .announce = scsi_announce_periph, 604 }; 605 606 struct xpt_xport * 607 scsi_get_xport(void) 608 { 609 return (&scsi_xport); 610 } 611 612 static void 613 probe_periph_init() 614 { 615 } 616 617 static cam_status 618 proberegister(struct cam_periph *periph, void *arg) 619 { 620 union ccb *request_ccb; /* CCB representing the probe request */ 621 cam_status status; 622 probe_softc *softc; 623 624 request_ccb = (union ccb *)arg; 625 if (request_ccb == NULL) { 626 printf("proberegister: no probe CCB, " 627 "can't register device\n"); 628 return(CAM_REQ_CMP_ERR); 629 } 630 631 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 632 633 if (softc == NULL) { 634 printf("proberegister: Unable to probe new device. " 635 "Unable to allocate softc\n"); 636 return(CAM_REQ_CMP_ERR); 637 } 638 TAILQ_INIT(&softc->request_ccbs); 639 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 640 periph_links.tqe); 641 softc->flags = 0; 642 periph->softc = softc; 643 softc->periph = periph; 644 softc->action = PROBE_INVALID; 645 status = cam_periph_acquire(periph); 646 if (status != CAM_REQ_CMP) { 647 return (status); 648 } 649 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 650 scsi_devise_transport(periph->path); 651 652 /* 653 * Ensure we've waited at least a bus settle 654 * delay before attempting to probe the device. 655 * For HBAs that don't do bus resets, this won't make a difference. 656 */ 657 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 658 scsi_delay); 659 probeschedule(periph); 660 return(CAM_REQ_CMP); 661 } 662 663 static void 664 probeschedule(struct cam_periph *periph) 665 { 666 struct ccb_pathinq cpi; 667 union ccb *ccb; 668 probe_softc *softc; 669 670 softc = (probe_softc *)periph->softc; 671 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 672 673 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 674 cpi.ccb_h.func_code = XPT_PATH_INQ; 675 xpt_action((union ccb *)&cpi); 676 677 /* 678 * If a device has gone away and another device, or the same one, 679 * is back in the same place, it should have a unit attention 680 * condition pending. It will not report the unit attention in 681 * response to an inquiry, which may leave invalid transfer 682 * negotiations in effect. The TUR will reveal the unit attention 683 * condition. Only send the TUR for lun 0, since some devices 684 * will get confused by commands other than inquiry to non-existent 685 * luns. If you think a device has gone away start your scan from 686 * lun 0. This will insure that any bogus transfer settings are 687 * invalidated. 688 * 689 * If we haven't seen the device before and the controller supports 690 * some kind of transfer negotiation, negotiate with the first 691 * sent command if no bus reset was performed at startup. This 692 * ensures that the device is not confused by transfer negotiation 693 * settings left over by loader or BIOS action. 694 */ 695 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 696 && (ccb->ccb_h.target_lun == 0)) { 697 PROBE_SET_ACTION(softc, PROBE_TUR); 698 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 699 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 700 proberequestdefaultnegotiation(periph); 701 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 702 } else { 703 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 704 } 705 706 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 707 softc->flags |= PROBE_NO_ANNOUNCE; 708 else 709 softc->flags &= ~PROBE_NO_ANNOUNCE; 710 711 if (cpi.hba_misc & PIM_EXTLUNS) 712 softc->flags |= PROBE_EXTLUN; 713 else 714 softc->flags &= ~PROBE_EXTLUN; 715 716 xpt_schedule(periph, CAM_PRIORITY_XPT); 717 } 718 719 static void 720 probestart(struct cam_periph *periph, union ccb *start_ccb) 721 { 722 /* Probe the device that our peripheral driver points to */ 723 struct ccb_scsiio *csio; 724 probe_softc *softc; 725 726 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 727 728 softc = (probe_softc *)periph->softc; 729 csio = &start_ccb->csio; 730 again: 731 732 switch (softc->action) { 733 case PROBE_TUR: 734 case PROBE_TUR_FOR_NEGOTIATION: 735 case PROBE_DV_EXIT: 736 { 737 scsi_test_unit_ready(csio, 738 /*retries*/4, 739 probedone, 740 MSG_SIMPLE_Q_TAG, 741 SSD_FULL_SIZE, 742 /*timeout*/60000); 743 break; 744 } 745 case PROBE_INQUIRY: 746 case PROBE_FULL_INQUIRY: 747 case PROBE_INQUIRY_BASIC_DV1: 748 case PROBE_INQUIRY_BASIC_DV2: 749 { 750 u_int inquiry_len; 751 struct scsi_inquiry_data *inq_buf; 752 753 inq_buf = &periph->path->device->inq_data; 754 755 /* 756 * If the device is currently configured, we calculate an 757 * MD5 checksum of the inquiry data, and if the serial number 758 * length is greater than 0, add the serial number data 759 * into the checksum as well. Once the inquiry and the 760 * serial number check finish, we attempt to figure out 761 * whether we still have the same device. 762 */ 763 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 764 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 765 766 MD5Init(&softc->context); 767 MD5Update(&softc->context, (unsigned char *)inq_buf, 768 sizeof(struct scsi_inquiry_data)); 769 softc->flags |= PROBE_INQUIRY_CKSUM; 770 if (periph->path->device->serial_num_len > 0) { 771 MD5Update(&softc->context, 772 periph->path->device->serial_num, 773 periph->path->device->serial_num_len); 774 softc->flags |= PROBE_SERIAL_CKSUM; 775 } 776 MD5Final(softc->digest, &softc->context); 777 } 778 779 if (softc->action == PROBE_INQUIRY) 780 inquiry_len = SHORT_INQUIRY_LENGTH; 781 else 782 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 783 784 /* 785 * Some parallel SCSI devices fail to send an 786 * ignore wide residue message when dealing with 787 * odd length inquiry requests. Round up to be 788 * safe. 789 */ 790 inquiry_len = roundup2(inquiry_len, 2); 791 792 if (softc->action == PROBE_INQUIRY_BASIC_DV1 793 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 794 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 795 } 796 if (inq_buf == NULL) { 797 xpt_print(periph->path, "malloc failure- skipping Basic" 798 "Domain Validation\n"); 799 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 800 scsi_test_unit_ready(csio, 801 /*retries*/4, 802 probedone, 803 MSG_SIMPLE_Q_TAG, 804 SSD_FULL_SIZE, 805 /*timeout*/60000); 806 break; 807 } 808 scsi_inquiry(csio, 809 /*retries*/4, 810 probedone, 811 MSG_SIMPLE_Q_TAG, 812 (u_int8_t *)inq_buf, 813 inquiry_len, 814 /*evpd*/FALSE, 815 /*page_code*/0, 816 SSD_MIN_SIZE, 817 /*timeout*/60 * 1000); 818 break; 819 } 820 case PROBE_REPORT_LUNS: 821 { 822 void *rp; 823 824 rp = malloc(periph->path->target->rpl_size, 825 M_CAMXPT, M_NOWAIT | M_ZERO); 826 if (rp == NULL) { 827 struct scsi_inquiry_data *inq_buf; 828 inq_buf = &periph->path->device->inq_data; 829 xpt_print(periph->path, 830 "Unable to alloc report luns storage\n"); 831 if (INQ_DATA_TQ_ENABLED(inq_buf)) 832 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 833 else 834 PROBE_SET_ACTION(softc, 835 PROBE_SUPPORTED_VPD_LIST); 836 goto again; 837 } 838 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 839 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 840 SSD_FULL_SIZE, 60000); break; 841 break; 842 } 843 case PROBE_MODE_SENSE: 844 { 845 void *mode_buf; 846 int mode_buf_len; 847 848 mode_buf_len = sizeof(struct scsi_mode_header_6) 849 + sizeof(struct scsi_mode_blk_desc) 850 + sizeof(struct scsi_control_page); 851 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 852 if (mode_buf != NULL) { 853 scsi_mode_sense(csio, 854 /*retries*/4, 855 probedone, 856 MSG_SIMPLE_Q_TAG, 857 /*dbd*/FALSE, 858 SMS_PAGE_CTRL_CURRENT, 859 SMS_CONTROL_MODE_PAGE, 860 mode_buf, 861 mode_buf_len, 862 SSD_FULL_SIZE, 863 /*timeout*/60000); 864 break; 865 } 866 xpt_print(periph->path, "Unable to mode sense control page - " 867 "malloc failure\n"); 868 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 869 } 870 /* FALLTHROUGH */ 871 case PROBE_SUPPORTED_VPD_LIST: 872 { 873 struct scsi_vpd_supported_page_list *vpd_list; 874 struct cam_ed *device; 875 876 vpd_list = NULL; 877 device = periph->path->device; 878 879 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 880 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 881 M_NOWAIT | M_ZERO); 882 883 if (vpd_list != NULL) { 884 scsi_inquiry(csio, 885 /*retries*/4, 886 probedone, 887 MSG_SIMPLE_Q_TAG, 888 (u_int8_t *)vpd_list, 889 sizeof(*vpd_list), 890 /*evpd*/TRUE, 891 SVPD_SUPPORTED_PAGE_LIST, 892 SSD_MIN_SIZE, 893 /*timeout*/60 * 1000); 894 break; 895 } 896 done: 897 /* 898 * We'll have to do without, let our probedone 899 * routine finish up for us. 900 */ 901 start_ccb->csio.data_ptr = NULL; 902 cam_freeze_devq(periph->path); 903 cam_periph_doacquire(periph); 904 probedone(periph, start_ccb); 905 return; 906 } 907 case PROBE_DEVICE_ID: 908 { 909 struct scsi_vpd_device_id *devid; 910 911 devid = NULL; 912 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 913 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 914 M_NOWAIT | M_ZERO); 915 916 if (devid != NULL) { 917 scsi_inquiry(csio, 918 /*retries*/4, 919 probedone, 920 MSG_SIMPLE_Q_TAG, 921 (uint8_t *)devid, 922 SVPD_DEVICE_ID_MAX_SIZE, 923 /*evpd*/TRUE, 924 SVPD_DEVICE_ID, 925 SSD_MIN_SIZE, 926 /*timeout*/60 * 1000); 927 break; 928 } 929 goto done; 930 } 931 case PROBE_EXTENDED_INQUIRY: 932 { 933 struct scsi_vpd_extended_inquiry_data *ext_inq; 934 935 ext_inq = NULL; 936 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 937 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 938 M_NOWAIT | M_ZERO); 939 940 if (ext_inq != NULL) { 941 scsi_inquiry(csio, 942 /*retries*/4, 943 probedone, 944 MSG_SIMPLE_Q_TAG, 945 (uint8_t *)ext_inq, 946 sizeof(*ext_inq), 947 /*evpd*/TRUE, 948 SVPD_EXTENDED_INQUIRY_DATA, 949 SSD_MIN_SIZE, 950 /*timeout*/60 * 1000); 951 break; 952 } 953 /* 954 * We'll have to do without, let our probedone 955 * routine finish up for us. 956 */ 957 goto done; 958 } 959 case PROBE_SERIAL_NUM: 960 { 961 struct scsi_vpd_unit_serial_number *serial_buf; 962 struct cam_ed* device; 963 964 serial_buf = NULL; 965 device = periph->path->device; 966 if (device->serial_num != NULL) { 967 free(device->serial_num, M_CAMXPT); 968 device->serial_num = NULL; 969 device->serial_num_len = 0; 970 } 971 972 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 973 serial_buf = (struct scsi_vpd_unit_serial_number *) 974 malloc(sizeof(*serial_buf), M_CAMXPT, 975 M_NOWAIT|M_ZERO); 976 977 if (serial_buf != NULL) { 978 scsi_inquiry(csio, 979 /*retries*/4, 980 probedone, 981 MSG_SIMPLE_Q_TAG, 982 (u_int8_t *)serial_buf, 983 sizeof(*serial_buf), 984 /*evpd*/TRUE, 985 SVPD_UNIT_SERIAL_NUMBER, 986 SSD_MIN_SIZE, 987 /*timeout*/60 * 1000); 988 break; 989 } 990 goto done; 991 } 992 default: 993 panic("probestart: invalid action state 0x%x\n", softc->action); 994 } 995 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 996 cam_periph_doacquire(periph); 997 xpt_action(start_ccb); 998 } 999 1000 static void 1001 proberequestdefaultnegotiation(struct cam_periph *periph) 1002 { 1003 struct ccb_trans_settings cts; 1004 1005 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1006 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1007 cts.type = CTS_TYPE_USER_SETTINGS; 1008 xpt_action((union ccb *)&cts); 1009 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1010 return; 1011 } 1012 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1013 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1014 xpt_action((union ccb *)&cts); 1015 } 1016 1017 /* 1018 * Backoff Negotiation Code- only pertinent for SPI devices. 1019 */ 1020 static int 1021 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1022 { 1023 struct ccb_trans_settings cts; 1024 struct ccb_trans_settings_spi *spi; 1025 1026 memset(&cts, 0, sizeof (cts)); 1027 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1028 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1029 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1030 xpt_action((union ccb *)&cts); 1031 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1032 if (bootverbose) { 1033 xpt_print(periph->path, 1034 "failed to get current device settings\n"); 1035 } 1036 return (0); 1037 } 1038 if (cts.transport != XPORT_SPI) { 1039 if (bootverbose) { 1040 xpt_print(periph->path, "not SPI transport\n"); 1041 } 1042 return (0); 1043 } 1044 spi = &cts.xport_specific.spi; 1045 1046 /* 1047 * We cannot renegotiate sync rate if we don't have one. 1048 */ 1049 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1050 if (bootverbose) { 1051 xpt_print(periph->path, "no sync rate known\n"); 1052 } 1053 return (0); 1054 } 1055 1056 /* 1057 * We'll assert that we don't have to touch PPR options- the 1058 * SIM will see what we do with period and offset and adjust 1059 * the PPR options as appropriate. 1060 */ 1061 1062 /* 1063 * A sync rate with unknown or zero offset is nonsensical. 1064 * A sync period of zero means Async. 1065 */ 1066 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1067 || spi->sync_offset == 0 || spi->sync_period == 0) { 1068 if (bootverbose) { 1069 xpt_print(periph->path, "no sync rate available\n"); 1070 } 1071 return (0); 1072 } 1073 1074 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1075 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1076 ("hit async: giving up on DV\n")); 1077 return (0); 1078 } 1079 1080 1081 /* 1082 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1083 * We don't try to remember 'last' settings to see if the SIM actually 1084 * gets into the speed we want to set. We check on the SIM telling 1085 * us that a requested speed is bad, but otherwise don't try and 1086 * check the speed due to the asynchronous and handshake nature 1087 * of speed setting. 1088 */ 1089 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1090 for (;;) { 1091 spi->sync_period++; 1092 if (spi->sync_period >= 0xf) { 1093 spi->sync_period = 0; 1094 spi->sync_offset = 0; 1095 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1096 ("setting to async for DV\n")); 1097 /* 1098 * Once we hit async, we don't want to try 1099 * any more settings. 1100 */ 1101 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1102 } else if (bootverbose) { 1103 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1104 ("DV: period 0x%x\n", spi->sync_period)); 1105 printf("setting period to 0x%x\n", spi->sync_period); 1106 } 1107 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1108 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1109 xpt_action((union ccb *)&cts); 1110 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1111 break; 1112 } 1113 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1114 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1115 if (spi->sync_period == 0) { 1116 return (0); 1117 } 1118 } 1119 return (1); 1120 } 1121 1122 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1123 1124 static void 1125 probedone(struct cam_periph *periph, union ccb *done_ccb) 1126 { 1127 probe_softc *softc; 1128 struct cam_path *path; 1129 struct scsi_inquiry_data *inq_buf; 1130 u_int32_t priority; 1131 1132 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1133 1134 softc = (probe_softc *)periph->softc; 1135 path = done_ccb->ccb_h.path; 1136 priority = done_ccb->ccb_h.pinfo.priority; 1137 1138 switch (softc->action) { 1139 case PROBE_TUR: 1140 { 1141 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1142 1143 if (cam_periph_error(done_ccb, 0, 1144 SF_NO_PRINT, NULL) == ERESTART) { 1145 outr: 1146 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1147 cam_release_devq(path, 0, 0, 0, FALSE); 1148 return; 1149 } 1150 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1151 /* Don't wedge the queue */ 1152 xpt_release_devq(done_ccb->ccb_h.path, 1153 /*count*/1, 1154 /*run_queue*/TRUE); 1155 } 1156 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1157 xpt_release_ccb(done_ccb); 1158 xpt_schedule(periph, priority); 1159 out: 1160 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1161 cam_release_devq(path, 0, 0, 0, FALSE); 1162 cam_periph_release_locked(periph); 1163 return; 1164 } 1165 case PROBE_INQUIRY: 1166 case PROBE_FULL_INQUIRY: 1167 { 1168 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1169 u_int8_t periph_qual; 1170 1171 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1172 scsi_find_quirk(path->device); 1173 inq_buf = &path->device->inq_data; 1174 1175 periph_qual = SID_QUAL(inq_buf); 1176 1177 if (periph_qual == SID_QUAL_LU_CONNECTED || 1178 periph_qual == SID_QUAL_LU_OFFLINE) { 1179 u_int8_t len; 1180 1181 /* 1182 * We conservatively request only 1183 * SHORT_INQUIRY_LEN bytes of inquiry 1184 * information during our first try 1185 * at sending an INQUIRY. If the device 1186 * has more information to give, 1187 * perform a second request specifying 1188 * the amount of information the device 1189 * is willing to give. 1190 */ 1191 len = inq_buf->additional_length 1192 + offsetof(struct scsi_inquiry_data, 1193 additional_length) + 1; 1194 if (softc->action == PROBE_INQUIRY 1195 && len > SHORT_INQUIRY_LENGTH) { 1196 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1197 xpt_release_ccb(done_ccb); 1198 xpt_schedule(periph, priority); 1199 goto out; 1200 } 1201 1202 scsi_devise_transport(path); 1203 1204 if (path->device->lun_id == 0 && 1205 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1206 (SCSI_QUIRK(path->device)->quirks & 1207 CAM_QUIRK_NORPTLUNS) == 0) { 1208 PROBE_SET_ACTION(softc, 1209 PROBE_REPORT_LUNS); 1210 /* 1211 * Start with room for *one* lun. 1212 */ 1213 periph->path->target->rpl_size = 16; 1214 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1215 PROBE_SET_ACTION(softc, 1216 PROBE_MODE_SENSE); 1217 else 1218 PROBE_SET_ACTION(softc, 1219 PROBE_SUPPORTED_VPD_LIST); 1220 1221 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1222 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1223 xpt_acquire_device(path->device); 1224 } 1225 xpt_release_ccb(done_ccb); 1226 xpt_schedule(periph, priority); 1227 goto out; 1228 } else if (path->device->lun_id == 0 && 1229 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1230 (SCSI_QUIRK(path->device)->quirks & 1231 CAM_QUIRK_NORPTLUNS) == 0) { 1232 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1233 periph->path->target->rpl_size = 16; 1234 xpt_release_ccb(done_ccb); 1235 xpt_schedule(periph, priority); 1236 goto out; 1237 } 1238 } else if (cam_periph_error(done_ccb, 0, 1239 done_ccb->ccb_h.target_lun > 0 1240 ? SF_RETRY_UA|SF_QUIET_IR 1241 : SF_RETRY_UA, 1242 &softc->saved_ccb) == ERESTART) { 1243 goto outr; 1244 } else { 1245 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1246 /* Don't wedge the queue */ 1247 xpt_release_devq(done_ccb->ccb_h.path, 1248 /*count*/1, /*run_queue*/TRUE); 1249 } 1250 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1251 } 1252 /* 1253 * If we get to this point, we got an error status back 1254 * from the inquiry and the error status doesn't require 1255 * automatically retrying the command. Therefore, the 1256 * inquiry failed. If we had inquiry information before 1257 * for this device, but this latest inquiry command failed, 1258 * the device has probably gone away. If this device isn't 1259 * already marked unconfigured, notify the peripheral 1260 * drivers that this device is no more. 1261 */ 1262 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1263 /* Send the async notification. */ 1264 xpt_async(AC_LOST_DEVICE, path, NULL); 1265 PROBE_SET_ACTION(softc, PROBE_INVALID); 1266 1267 xpt_release_ccb(done_ccb); 1268 break; 1269 } 1270 case PROBE_REPORT_LUNS: 1271 { 1272 struct ccb_scsiio *csio; 1273 struct scsi_report_luns_data *lp; 1274 u_int nlun, maxlun; 1275 1276 csio = &done_ccb->csio; 1277 1278 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1279 nlun = scsi_4btoul(lp->length) / 8; 1280 maxlun = (csio->dxfer_len / 8) - 1; 1281 1282 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1283 if (cam_periph_error(done_ccb, 0, 1284 done_ccb->ccb_h.target_lun > 0 ? 1285 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA, 1286 &softc->saved_ccb) == ERESTART) { 1287 goto outr; 1288 } 1289 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1290 xpt_release_devq(done_ccb->ccb_h.path, 1, 1291 TRUE); 1292 } 1293 free(lp, M_CAMXPT); 1294 lp = NULL; 1295 } else if (nlun > maxlun) { 1296 /* 1297 * Reallocate and retry to cover all luns 1298 */ 1299 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1300 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1301 nlun)); 1302 free(lp, M_CAMXPT); 1303 path->target->rpl_size = (nlun << 3) + 8; 1304 xpt_release_ccb(done_ccb); 1305 xpt_schedule(periph, priority); 1306 goto out; 1307 } else if (nlun == 0) { 1308 /* 1309 * If there don't appear to be any luns, bail. 1310 */ 1311 free(lp, M_CAMXPT); 1312 lp = NULL; 1313 } else { 1314 lun_id_t lun; 1315 int idx; 1316 1317 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1318 ("Probe: %u lun(s) reported\n", nlun)); 1319 1320 CAM_GET_LUN(lp, 0, lun); 1321 /* 1322 * If the first lun is not lun 0, then either there 1323 * is no lun 0 in the list, or the list is unsorted. 1324 */ 1325 if (lun != 0) { 1326 for (idx = 0; idx < nlun; idx++) { 1327 CAM_GET_LUN(lp, idx, lun); 1328 if (lun == 0) { 1329 break; 1330 } 1331 } 1332 if (idx != nlun) { 1333 uint8_t tlun[8]; 1334 memcpy(tlun, 1335 lp->luns[0].lundata, 8); 1336 memcpy(lp->luns[0].lundata, 1337 lp->luns[idx].lundata, 8); 1338 memcpy(lp->luns[idx].lundata, 1339 tlun, 8); 1340 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1341 ("lun 0 in position %u\n", idx)); 1342 } 1343 } 1344 /* 1345 * If we have an old lun list, We can either 1346 * retest luns that appear to have been dropped, 1347 * or just nuke them. We'll opt for the latter. 1348 * This function will also install the new list 1349 * in the target structure. 1350 */ 1351 probe_purge_old(path, lp, softc->flags); 1352 lp = NULL; 1353 } 1354 inq_buf = &path->device->inq_data; 1355 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1356 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1357 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1358 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1359 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1360 else 1361 PROBE_SET_ACTION(softc, 1362 PROBE_SUPPORTED_VPD_LIST); 1363 xpt_release_ccb(done_ccb); 1364 xpt_schedule(periph, priority); 1365 goto out; 1366 } 1367 if (lp) { 1368 free(lp, M_CAMXPT); 1369 } 1370 PROBE_SET_ACTION(softc, PROBE_INVALID); 1371 xpt_release_ccb(done_ccb); 1372 break; 1373 } 1374 case PROBE_MODE_SENSE: 1375 { 1376 struct ccb_scsiio *csio; 1377 struct scsi_mode_header_6 *mode_hdr; 1378 1379 csio = &done_ccb->csio; 1380 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1381 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1382 struct scsi_control_page *page; 1383 u_int8_t *offset; 1384 1385 offset = ((u_int8_t *)&mode_hdr[1]) 1386 + mode_hdr->blk_desc_len; 1387 page = (struct scsi_control_page *)offset; 1388 path->device->queue_flags = page->queue_flags; 1389 } else if (cam_periph_error(done_ccb, 0, 1390 SF_RETRY_UA|SF_NO_PRINT, 1391 &softc->saved_ccb) == ERESTART) { 1392 goto outr; 1393 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1394 /* Don't wedge the queue */ 1395 xpt_release_devq(done_ccb->ccb_h.path, 1396 /*count*/1, /*run_queue*/TRUE); 1397 } 1398 xpt_release_ccb(done_ccb); 1399 free(mode_hdr, M_CAMXPT); 1400 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1401 xpt_schedule(periph, priority); 1402 goto out; 1403 } 1404 case PROBE_SUPPORTED_VPD_LIST: 1405 { 1406 struct ccb_scsiio *csio; 1407 struct scsi_vpd_supported_page_list *page_list; 1408 1409 csio = &done_ccb->csio; 1410 page_list = 1411 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1412 1413 if (path->device->supported_vpds != NULL) { 1414 free(path->device->supported_vpds, M_CAMXPT); 1415 path->device->supported_vpds = NULL; 1416 path->device->supported_vpds_len = 0; 1417 } 1418 1419 if (page_list == NULL) { 1420 /* 1421 * Don't process the command as it was never sent 1422 */ 1423 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1424 /* Got vpd list */ 1425 path->device->supported_vpds_len = page_list->length + 1426 SVPD_SUPPORTED_PAGES_HDR_LEN; 1427 path->device->supported_vpds = (uint8_t *)page_list; 1428 xpt_release_ccb(done_ccb); 1429 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1430 xpt_schedule(periph, priority); 1431 goto out; 1432 } else if (cam_periph_error(done_ccb, 0, 1433 SF_RETRY_UA|SF_NO_PRINT, 1434 &softc->saved_ccb) == ERESTART) { 1435 goto outr; 1436 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1437 /* Don't wedge the queue */ 1438 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1439 /*run_queue*/TRUE); 1440 } 1441 1442 if (page_list) 1443 free(page_list, M_CAMXPT); 1444 /* No VPDs available, skip to device check. */ 1445 csio->data_ptr = NULL; 1446 goto probe_device_check; 1447 } 1448 case PROBE_DEVICE_ID: 1449 { 1450 struct scsi_vpd_device_id *devid; 1451 struct ccb_scsiio *csio; 1452 uint32_t length = 0; 1453 1454 csio = &done_ccb->csio; 1455 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1456 1457 /* Clean up from previous instance of this device */ 1458 if (path->device->device_id != NULL) { 1459 path->device->device_id_len = 0; 1460 free(path->device->device_id, M_CAMXPT); 1461 path->device->device_id = NULL; 1462 } 1463 1464 if (devid == NULL) { 1465 /* Don't process the command as it was never sent */ 1466 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1467 length = scsi_2btoul(devid->length); 1468 if (length != 0) { 1469 /* 1470 * NB: device_id_len is actual response 1471 * size, not buffer size. 1472 */ 1473 path->device->device_id_len = length + 1474 SVPD_DEVICE_ID_HDR_LEN; 1475 path->device->device_id = (uint8_t *)devid; 1476 } 1477 } else if (cam_periph_error(done_ccb, 0, 1478 SF_RETRY_UA, 1479 &softc->saved_ccb) == ERESTART) { 1480 goto outr; 1481 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1482 /* Don't wedge the queue */ 1483 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1484 /*run_queue*/TRUE); 1485 } 1486 1487 /* Free the device id space if we don't use it */ 1488 if (devid && length == 0) 1489 free(devid, M_CAMXPT); 1490 xpt_release_ccb(done_ccb); 1491 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1492 xpt_schedule(periph, priority); 1493 goto out; 1494 } 1495 case PROBE_EXTENDED_INQUIRY: { 1496 struct scsi_vpd_extended_inquiry_data *ext_inq; 1497 struct ccb_scsiio *csio; 1498 int32_t length = 0; 1499 1500 csio = &done_ccb->csio; 1501 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1502 csio->data_ptr; 1503 if (path->device->ext_inq != NULL) { 1504 path->device->ext_inq_len = 0; 1505 free(path->device->ext_inq, M_CAMXPT); 1506 path->device->ext_inq = NULL; 1507 } 1508 1509 if (ext_inq == NULL) { 1510 /* Don't process the command as it was never sent */ 1511 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1512 length = scsi_2btoul(ext_inq->page_length) + 1513 __offsetof(struct scsi_vpd_extended_inquiry_data, 1514 flags1); 1515 length = min(length, sizeof(*ext_inq)); 1516 length -= csio->resid; 1517 if (length > 0) { 1518 path->device->ext_inq_len = length; 1519 path->device->ext_inq = (uint8_t *)ext_inq; 1520 } 1521 } else if (cam_periph_error(done_ccb, 0, 1522 SF_RETRY_UA, 1523 &softc->saved_ccb) == ERESTART) { 1524 goto outr; 1525 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1526 /* Don't wedge the queue */ 1527 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1528 /*run_queue*/TRUE); 1529 } 1530 1531 /* Free the device id space if we don't use it */ 1532 if (ext_inq && length <= 0) 1533 free(ext_inq, M_CAMXPT); 1534 xpt_release_ccb(done_ccb); 1535 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1536 xpt_schedule(periph, priority); 1537 goto out; 1538 } 1539 1540 probe_device_check: 1541 case PROBE_SERIAL_NUM: 1542 { 1543 struct ccb_scsiio *csio; 1544 struct scsi_vpd_unit_serial_number *serial_buf; 1545 u_int32_t priority; 1546 int changed; 1547 int have_serialnum; 1548 1549 changed = 1; 1550 have_serialnum = 0; 1551 csio = &done_ccb->csio; 1552 priority = done_ccb->ccb_h.pinfo.priority; 1553 serial_buf = 1554 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1555 1556 if (serial_buf == NULL) { 1557 /* 1558 * Don't process the command as it was never sent 1559 */ 1560 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1561 && (serial_buf->length > 0)) { 1562 1563 have_serialnum = 1; 1564 path->device->serial_num = 1565 (u_int8_t *)malloc((serial_buf->length + 1), 1566 M_CAMXPT, M_NOWAIT); 1567 if (path->device->serial_num != NULL) { 1568 memcpy(path->device->serial_num, 1569 serial_buf->serial_num, 1570 serial_buf->length); 1571 path->device->serial_num_len = 1572 serial_buf->length; 1573 path->device->serial_num[serial_buf->length] 1574 = '\0'; 1575 } 1576 } else if (cam_periph_error(done_ccb, 0, 1577 SF_RETRY_UA|SF_NO_PRINT, 1578 &softc->saved_ccb) == ERESTART) { 1579 goto outr; 1580 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1581 /* Don't wedge the queue */ 1582 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1583 /*run_queue*/TRUE); 1584 } 1585 1586 /* 1587 * Let's see if we have seen this device before. 1588 */ 1589 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1590 MD5_CTX context; 1591 u_int8_t digest[16]; 1592 1593 MD5Init(&context); 1594 1595 MD5Update(&context, 1596 (unsigned char *)&path->device->inq_data, 1597 sizeof(struct scsi_inquiry_data)); 1598 1599 if (have_serialnum) 1600 MD5Update(&context, serial_buf->serial_num, 1601 serial_buf->length); 1602 1603 MD5Final(digest, &context); 1604 if (bcmp(softc->digest, digest, 16) == 0) 1605 changed = 0; 1606 1607 /* 1608 * XXX Do we need to do a TUR in order to ensure 1609 * that the device really hasn't changed??? 1610 */ 1611 if ((changed != 0) 1612 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1613 xpt_async(AC_LOST_DEVICE, path, NULL); 1614 } 1615 if (serial_buf != NULL) 1616 free(serial_buf, M_CAMXPT); 1617 1618 if (changed != 0) { 1619 /* 1620 * Now that we have all the necessary 1621 * information to safely perform transfer 1622 * negotiations... Controllers don't perform 1623 * any negotiation or tagged queuing until 1624 * after the first XPT_SET_TRAN_SETTINGS ccb is 1625 * received. So, on a new device, just retrieve 1626 * the user settings, and set them as the current 1627 * settings to set the device up. 1628 */ 1629 proberequestdefaultnegotiation(periph); 1630 xpt_release_ccb(done_ccb); 1631 1632 /* 1633 * Perform a TUR to allow the controller to 1634 * perform any necessary transfer negotiation. 1635 */ 1636 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1637 xpt_schedule(periph, priority); 1638 goto out; 1639 } 1640 xpt_release_ccb(done_ccb); 1641 break; 1642 } 1643 case PROBE_TUR_FOR_NEGOTIATION: 1644 case PROBE_DV_EXIT: 1645 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1646 cam_periph_error(done_ccb, 0, 1647 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1648 } 1649 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1650 /* Don't wedge the queue */ 1651 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1652 /*run_queue*/TRUE); 1653 } 1654 /* 1655 * Do Domain Validation for lun 0 on devices that claim 1656 * to support Synchronous Transfer modes. 1657 */ 1658 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1659 && done_ccb->ccb_h.target_lun == 0 1660 && (path->device->inq_data.flags & SID_Sync) != 0 1661 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1662 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1663 ("Begin Domain Validation\n")); 1664 path->device->flags |= CAM_DEV_IN_DV; 1665 xpt_release_ccb(done_ccb); 1666 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1667 xpt_schedule(periph, priority); 1668 goto out; 1669 } 1670 if (softc->action == PROBE_DV_EXIT) { 1671 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1672 ("Leave Domain Validation\n")); 1673 } 1674 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1675 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1676 xpt_acquire_device(path->device); 1677 } 1678 path->device->flags &= 1679 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1680 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1681 /* Inform the XPT that a new device has been found */ 1682 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1683 xpt_action(done_ccb); 1684 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1685 done_ccb); 1686 } 1687 PROBE_SET_ACTION(softc, PROBE_DONE); 1688 xpt_release_ccb(done_ccb); 1689 break; 1690 case PROBE_INQUIRY_BASIC_DV1: 1691 case PROBE_INQUIRY_BASIC_DV2: 1692 { 1693 struct scsi_inquiry_data *nbuf; 1694 struct ccb_scsiio *csio; 1695 1696 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1697 cam_periph_error(done_ccb, 0, 1698 SF_NO_PRINT | SF_NO_RECOVERY | SF_NO_RETRY, NULL); 1699 } 1700 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1701 /* Don't wedge the queue */ 1702 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1703 /*run_queue*/TRUE); 1704 } 1705 csio = &done_ccb->csio; 1706 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1707 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1708 xpt_print(path, 1709 "inquiry data fails comparison at DV%d step\n", 1710 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1711 if (proberequestbackoff(periph, path->device)) { 1712 path->device->flags &= ~CAM_DEV_IN_DV; 1713 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1714 } else { 1715 /* give up */ 1716 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1717 } 1718 free(nbuf, M_CAMXPT); 1719 xpt_release_ccb(done_ccb); 1720 xpt_schedule(periph, priority); 1721 goto out; 1722 } 1723 free(nbuf, M_CAMXPT); 1724 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1725 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1726 xpt_release_ccb(done_ccb); 1727 xpt_schedule(periph, priority); 1728 goto out; 1729 } 1730 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1731 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1732 ("Leave Domain Validation Successfully\n")); 1733 } 1734 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1735 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1736 xpt_acquire_device(path->device); 1737 } 1738 path->device->flags &= 1739 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1740 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1741 /* Inform the XPT that a new device has been found */ 1742 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1743 xpt_action(done_ccb); 1744 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1745 done_ccb); 1746 } 1747 PROBE_SET_ACTION(softc, PROBE_DONE); 1748 xpt_release_ccb(done_ccb); 1749 break; 1750 } 1751 default: 1752 panic("probedone: invalid action state 0x%x\n", softc->action); 1753 } 1754 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1755 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1756 done_ccb->ccb_h.status = CAM_REQ_CMP; 1757 xpt_done(done_ccb); 1758 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1759 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1760 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1761 cam_release_devq(path, 0, 0, 0, FALSE); 1762 cam_periph_release_locked(periph); 1763 cam_periph_invalidate(periph); 1764 cam_periph_release_locked(periph); 1765 } else { 1766 probeschedule(periph); 1767 goto out; 1768 } 1769 } 1770 1771 static void 1772 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1773 probe_flags flags) 1774 { 1775 struct cam_path *tp; 1776 struct scsi_report_luns_data *old; 1777 u_int idx1, idx2, nlun_old, nlun_new; 1778 lun_id_t this_lun; 1779 u_int8_t *ol, *nl; 1780 1781 if (path->target == NULL) { 1782 return; 1783 } 1784 mtx_lock(&path->target->luns_mtx); 1785 old = path->target->luns; 1786 path->target->luns = new; 1787 mtx_unlock(&path->target->luns_mtx); 1788 if (old == NULL) 1789 return; 1790 nlun_old = scsi_4btoul(old->length) / 8; 1791 nlun_new = scsi_4btoul(new->length) / 8; 1792 1793 /* 1794 * We are not going to assume sorted lists. Deal. 1795 */ 1796 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1797 ol = old->luns[idx1].lundata; 1798 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1799 nl = new->luns[idx2].lundata; 1800 if (memcmp(nl, ol, 8) == 0) { 1801 break; 1802 } 1803 } 1804 if (idx2 < nlun_new) { 1805 continue; 1806 } 1807 /* 1808 * An 'old' item not in the 'new' list. 1809 * Nuke it. Except that if it is lun 0, 1810 * that would be what the probe state 1811 * machine is currently working on, 1812 * so we won't do that. 1813 */ 1814 CAM_GET_LUN(old, idx1, this_lun); 1815 if (this_lun == 0) { 1816 continue; 1817 } 1818 1819 /* 1820 * We also cannot nuke it if it is 1821 * not in a lun format we understand 1822 * and replace the LUN with a "simple" LUN 1823 * if that is all the HBA supports. 1824 */ 1825 if (!(flags & PROBE_EXTLUN)) { 1826 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1827 continue; 1828 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1829 } 1830 if (!CAM_LUN_ONLY_32BITS(old, idx1)) 1831 continue; 1832 1833 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1834 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1835 xpt_async(AC_LOST_DEVICE, tp, NULL); 1836 xpt_free_path(tp); 1837 } 1838 } 1839 free(old, M_CAMXPT); 1840 } 1841 1842 static void 1843 probecleanup(struct cam_periph *periph) 1844 { 1845 free(periph->softc, M_CAMXPT); 1846 } 1847 1848 static void 1849 scsi_find_quirk(struct cam_ed *device) 1850 { 1851 struct scsi_quirk_entry *quirk; 1852 caddr_t match; 1853 1854 match = cam_quirkmatch((caddr_t)&device->inq_data, 1855 (caddr_t)scsi_quirk_table, 1856 sizeof(scsi_quirk_table) / 1857 sizeof(*scsi_quirk_table), 1858 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1859 1860 if (match == NULL) 1861 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1862 1863 quirk = (struct scsi_quirk_entry *)match; 1864 device->quirk = quirk; 1865 device->mintags = quirk->mintags; 1866 device->maxtags = quirk->maxtags; 1867 } 1868 1869 static int 1870 sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1871 { 1872 int error, val; 1873 1874 val = cam_srch_hi; 1875 error = sysctl_handle_int(oidp, &val, 0, req); 1876 if (error != 0 || req->newptr == NULL) 1877 return (error); 1878 if (val == 0 || val == 1) { 1879 cam_srch_hi = val; 1880 return (0); 1881 } else { 1882 return (EINVAL); 1883 } 1884 } 1885 1886 typedef struct { 1887 union ccb *request_ccb; 1888 struct ccb_pathinq *cpi; 1889 int counter; 1890 int lunindex[0]; 1891 } scsi_scan_bus_info; 1892 1893 /* 1894 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1895 * As the scan progresses, scsi_scan_bus is used as the 1896 * callback on completion function. 1897 */ 1898 static void 1899 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1900 { 1901 struct mtx *mtx; 1902 1903 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1904 ("scsi_scan_bus\n")); 1905 switch (request_ccb->ccb_h.func_code) { 1906 case XPT_SCAN_BUS: 1907 case XPT_SCAN_TGT: 1908 { 1909 scsi_scan_bus_info *scan_info; 1910 union ccb *work_ccb, *reset_ccb; 1911 struct cam_path *path; 1912 u_int i; 1913 u_int low_target, max_target; 1914 u_int initiator_id; 1915 1916 /* Find out the characteristics of the bus */ 1917 work_ccb = xpt_alloc_ccb_nowait(); 1918 if (work_ccb == NULL) { 1919 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1920 xpt_done(request_ccb); 1921 return; 1922 } 1923 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1924 request_ccb->ccb_h.pinfo.priority); 1925 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1926 xpt_action(work_ccb); 1927 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1928 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1929 xpt_free_ccb(work_ccb); 1930 xpt_done(request_ccb); 1931 return; 1932 } 1933 1934 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1935 /* 1936 * Can't scan the bus on an adapter that 1937 * cannot perform the initiator role. 1938 */ 1939 request_ccb->ccb_h.status = CAM_REQ_CMP; 1940 xpt_free_ccb(work_ccb); 1941 xpt_done(request_ccb); 1942 return; 1943 } 1944 1945 /* We may need to reset bus first, if we haven't done it yet. */ 1946 if ((work_ccb->cpi.hba_inquiry & 1947 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1948 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1949 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1950 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1951 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1952 CAM_PRIORITY_NONE); 1953 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1954 xpt_action(reset_ccb); 1955 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1956 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1957 xpt_free_ccb(reset_ccb); 1958 xpt_free_ccb(work_ccb); 1959 xpt_done(request_ccb); 1960 return; 1961 } 1962 xpt_free_ccb(reset_ccb); 1963 } 1964 1965 /* Save some state for use while we probe for devices */ 1966 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1967 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1968 if (scan_info == NULL) { 1969 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1970 xpt_free_ccb(work_ccb); 1971 xpt_done(request_ccb); 1972 return; 1973 } 1974 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1975 ("SCAN start for %p\n", scan_info)); 1976 scan_info->request_ccb = request_ccb; 1977 scan_info->cpi = &work_ccb->cpi; 1978 1979 /* Cache on our stack so we can work asynchronously */ 1980 max_target = scan_info->cpi->max_target; 1981 low_target = 0; 1982 initiator_id = scan_info->cpi->initiator_id; 1983 1984 1985 /* 1986 * We can scan all targets in parallel, or do it sequentially. 1987 */ 1988 1989 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 1990 max_target = low_target = request_ccb->ccb_h.target_id; 1991 scan_info->counter = 0; 1992 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 1993 max_target = 0; 1994 scan_info->counter = 0; 1995 } else { 1996 scan_info->counter = scan_info->cpi->max_target + 1; 1997 if (scan_info->cpi->initiator_id < scan_info->counter) { 1998 scan_info->counter--; 1999 } 2000 } 2001 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2002 mtx_unlock(mtx); 2003 2004 for (i = low_target; i <= max_target; i++) { 2005 cam_status status; 2006 if (i == initiator_id) 2007 continue; 2008 2009 status = xpt_create_path(&path, NULL, 2010 request_ccb->ccb_h.path_id, 2011 i, 0); 2012 if (status != CAM_REQ_CMP) { 2013 printf("scsi_scan_bus: xpt_create_path failed" 2014 " with status %#x, bus scan halted\n", 2015 status); 2016 free(scan_info, M_CAMXPT); 2017 request_ccb->ccb_h.status = status; 2018 xpt_free_ccb(work_ccb); 2019 xpt_done(request_ccb); 2020 break; 2021 } 2022 work_ccb = xpt_alloc_ccb_nowait(); 2023 if (work_ccb == NULL) { 2024 xpt_free_ccb((union ccb *)scan_info->cpi); 2025 free(scan_info, M_CAMXPT); 2026 xpt_free_path(path); 2027 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2028 xpt_done(request_ccb); 2029 break; 2030 } 2031 xpt_setup_ccb(&work_ccb->ccb_h, path, 2032 request_ccb->ccb_h.pinfo.priority); 2033 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2034 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2035 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2036 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2037 work_ccb->crcn.flags = request_ccb->crcn.flags; 2038 xpt_action(work_ccb); 2039 } 2040 2041 mtx_lock(mtx); 2042 break; 2043 } 2044 case XPT_SCAN_LUN: 2045 { 2046 cam_status status; 2047 struct cam_path *path, *oldpath; 2048 scsi_scan_bus_info *scan_info; 2049 struct cam_et *target; 2050 struct cam_ed *device, *nextdev; 2051 int next_target; 2052 path_id_t path_id; 2053 target_id_t target_id; 2054 lun_id_t lun_id; 2055 2056 oldpath = request_ccb->ccb_h.path; 2057 2058 status = cam_ccb_status(request_ccb); 2059 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2060 path_id = request_ccb->ccb_h.path_id; 2061 target_id = request_ccb->ccb_h.target_id; 2062 lun_id = request_ccb->ccb_h.target_lun; 2063 target = request_ccb->ccb_h.path->target; 2064 next_target = 1; 2065 2066 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2067 mtx_lock(mtx); 2068 mtx_lock(&target->luns_mtx); 2069 if (target->luns) { 2070 lun_id_t first; 2071 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2072 2073 /* 2074 * Make sure we skip over lun 0 if it's the first member 2075 * of the list as we've actually just finished probing 2076 * it. 2077 */ 2078 CAM_GET_LUN(target->luns, 0, first); 2079 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2080 scan_info->lunindex[target_id]++; 2081 } 2082 2083 /* 2084 * Skip any LUNs that the HBA can't deal with. 2085 */ 2086 while (scan_info->lunindex[target_id] < nluns) { 2087 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2088 CAM_GET_LUN(target->luns, 2089 scan_info->lunindex[target_id], 2090 lun_id); 2091 break; 2092 } 2093 2094 /* XXX print warning? */ 2095 if (!CAM_LUN_ONLY_32BITS(target->luns, 2096 scan_info->lunindex[target_id])) 2097 continue; 2098 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2099 scan_info->lunindex[target_id])) { 2100 CAM_GET_SIMPLE_LUN(target->luns, 2101 scan_info->lunindex[target_id], 2102 lun_id); 2103 break; 2104 } 2105 2106 scan_info->lunindex[target_id]++; 2107 } 2108 2109 if (scan_info->lunindex[target_id] < nluns) { 2110 mtx_unlock(&target->luns_mtx); 2111 next_target = 0; 2112 CAM_DEBUG(request_ccb->ccb_h.path, 2113 CAM_DEBUG_PROBE, 2114 ("next lun to try at index %u is %jx\n", 2115 scan_info->lunindex[target_id], 2116 (uintmax_t)lun_id)); 2117 scan_info->lunindex[target_id]++; 2118 } else { 2119 mtx_unlock(&target->luns_mtx); 2120 /* We're done with scanning all luns. */ 2121 } 2122 } else { 2123 mtx_unlock(&target->luns_mtx); 2124 device = request_ccb->ccb_h.path->device; 2125 /* Continue sequential LUN scan if: */ 2126 /* -- we have more LUNs that need recheck */ 2127 mtx_lock(&target->bus->eb_mtx); 2128 nextdev = device; 2129 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2130 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2131 break; 2132 mtx_unlock(&target->bus->eb_mtx); 2133 if (nextdev != NULL) { 2134 next_target = 0; 2135 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2136 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2137 next_target = 1; 2138 /* -- this LUN is connected and its SCSI version 2139 * allows more LUNs. */ 2140 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2141 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2142 CAN_SRCH_HI_DENSE(device)) 2143 next_target = 0; 2144 /* -- this LUN is disconnected, its SCSI version 2145 * allows more LUNs and we guess they may be. */ 2146 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2147 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2148 CAN_SRCH_HI_SPARSE(device)) 2149 next_target = 0; 2150 } 2151 if (next_target == 0) { 2152 lun_id++; 2153 if (lun_id > scan_info->cpi->max_lun) 2154 next_target = 1; 2155 } 2156 } 2157 2158 /* 2159 * Check to see if we scan any further luns. 2160 */ 2161 if (next_target) { 2162 int done; 2163 2164 /* 2165 * Free the current request path- we're done with it. 2166 */ 2167 xpt_free_path(oldpath); 2168 hop_again: 2169 done = 0; 2170 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2171 done = 1; 2172 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2173 scan_info->counter++; 2174 if (scan_info->counter == 2175 scan_info->cpi->initiator_id) { 2176 scan_info->counter++; 2177 } 2178 if (scan_info->counter >= 2179 scan_info->cpi->max_target+1) { 2180 done = 1; 2181 } 2182 } else { 2183 scan_info->counter--; 2184 if (scan_info->counter == 0) { 2185 done = 1; 2186 } 2187 } 2188 if (done) { 2189 mtx_unlock(mtx); 2190 xpt_free_ccb(request_ccb); 2191 xpt_free_ccb((union ccb *)scan_info->cpi); 2192 request_ccb = scan_info->request_ccb; 2193 CAM_DEBUG(request_ccb->ccb_h.path, 2194 CAM_DEBUG_TRACE, 2195 ("SCAN done for %p\n", scan_info)); 2196 free(scan_info, M_CAMXPT); 2197 request_ccb->ccb_h.status = CAM_REQ_CMP; 2198 xpt_done(request_ccb); 2199 break; 2200 } 2201 2202 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2203 mtx_unlock(mtx); 2204 xpt_free_ccb(request_ccb); 2205 break; 2206 } 2207 status = xpt_create_path(&path, NULL, 2208 scan_info->request_ccb->ccb_h.path_id, 2209 scan_info->counter, 0); 2210 if (status != CAM_REQ_CMP) { 2211 mtx_unlock(mtx); 2212 printf("scsi_scan_bus: xpt_create_path failed" 2213 " with status %#x, bus scan halted\n", 2214 status); 2215 xpt_free_ccb(request_ccb); 2216 xpt_free_ccb((union ccb *)scan_info->cpi); 2217 request_ccb = scan_info->request_ccb; 2218 free(scan_info, M_CAMXPT); 2219 request_ccb->ccb_h.status = status; 2220 xpt_done(request_ccb); 2221 break; 2222 } 2223 xpt_setup_ccb(&request_ccb->ccb_h, path, 2224 request_ccb->ccb_h.pinfo.priority); 2225 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2226 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2227 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2228 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2229 request_ccb->crcn.flags = 2230 scan_info->request_ccb->crcn.flags; 2231 } else { 2232 status = xpt_create_path(&path, NULL, 2233 path_id, target_id, lun_id); 2234 /* 2235 * Free the old request path- we're done with it. We 2236 * do this *after* creating the new path so that 2237 * we don't remove a target that has our lun list 2238 * in the case that lun 0 is not present. 2239 */ 2240 xpt_free_path(oldpath); 2241 if (status != CAM_REQ_CMP) { 2242 printf("scsi_scan_bus: xpt_create_path failed " 2243 "with status %#x, halting LUN scan\n", 2244 status); 2245 goto hop_again; 2246 } 2247 xpt_setup_ccb(&request_ccb->ccb_h, path, 2248 request_ccb->ccb_h.pinfo.priority); 2249 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2250 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2251 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2252 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2253 request_ccb->crcn.flags = 2254 scan_info->request_ccb->crcn.flags; 2255 } 2256 mtx_unlock(mtx); 2257 xpt_action(request_ccb); 2258 break; 2259 } 2260 default: 2261 break; 2262 } 2263 } 2264 2265 static void 2266 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2267 cam_flags flags, union ccb *request_ccb) 2268 { 2269 struct ccb_pathinq cpi; 2270 cam_status status; 2271 struct cam_path *new_path; 2272 struct cam_periph *old_periph; 2273 int lock; 2274 2275 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2276 2277 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2278 cpi.ccb_h.func_code = XPT_PATH_INQ; 2279 xpt_action((union ccb *)&cpi); 2280 2281 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2282 if (request_ccb != NULL) { 2283 request_ccb->ccb_h.status = cpi.ccb_h.status; 2284 xpt_done(request_ccb); 2285 } 2286 return; 2287 } 2288 2289 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2290 /* 2291 * Can't scan the bus on an adapter that 2292 * cannot perform the initiator role. 2293 */ 2294 if (request_ccb != NULL) { 2295 request_ccb->ccb_h.status = CAM_REQ_CMP; 2296 xpt_done(request_ccb); 2297 } 2298 return; 2299 } 2300 2301 if (request_ccb == NULL) { 2302 request_ccb = xpt_alloc_ccb_nowait(); 2303 if (request_ccb == NULL) { 2304 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2305 "can't continue\n"); 2306 return; 2307 } 2308 status = xpt_create_path(&new_path, NULL, 2309 path->bus->path_id, 2310 path->target->target_id, 2311 path->device->lun_id); 2312 if (status != CAM_REQ_CMP) { 2313 xpt_print(path, "scsi_scan_lun: can't create path, " 2314 "can't continue\n"); 2315 xpt_free_ccb(request_ccb); 2316 return; 2317 } 2318 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2319 request_ccb->ccb_h.cbfcnp = xptscandone; 2320 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2321 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2322 request_ccb->crcn.flags = flags; 2323 } 2324 2325 lock = (xpt_path_owned(path) == 0); 2326 if (lock) 2327 xpt_path_lock(path); 2328 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2329 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2330 probe_softc *softc; 2331 2332 softc = (probe_softc *)old_periph->softc; 2333 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2334 &request_ccb->ccb_h, periph_links.tqe); 2335 } else { 2336 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2337 xpt_done(request_ccb); 2338 } 2339 } else { 2340 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2341 probestart, "probe", 2342 CAM_PERIPH_BIO, 2343 request_ccb->ccb_h.path, NULL, 0, 2344 request_ccb); 2345 2346 if (status != CAM_REQ_CMP) { 2347 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2348 "returned an error, can't continue probe\n"); 2349 request_ccb->ccb_h.status = status; 2350 xpt_done(request_ccb); 2351 } 2352 } 2353 if (lock) 2354 xpt_path_unlock(path); 2355 } 2356 2357 static void 2358 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2359 { 2360 2361 xpt_free_path(done_ccb->ccb_h.path); 2362 xpt_free_ccb(done_ccb); 2363 } 2364 2365 static struct cam_ed * 2366 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2367 { 2368 struct scsi_quirk_entry *quirk; 2369 struct cam_ed *device; 2370 2371 device = xpt_alloc_device(bus, target, lun_id); 2372 if (device == NULL) 2373 return (NULL); 2374 2375 /* 2376 * Take the default quirk entry until we have inquiry 2377 * data and can determine a better quirk to use. 2378 */ 2379 quirk = &scsi_quirk_table[scsi_quirk_table_size - 1]; 2380 device->quirk = (void *)quirk; 2381 device->mintags = quirk->mintags; 2382 device->maxtags = quirk->maxtags; 2383 bzero(&device->inq_data, sizeof(device->inq_data)); 2384 device->inq_flags = 0; 2385 device->queue_flags = 0; 2386 device->serial_num = NULL; 2387 device->serial_num_len = 0; 2388 device->device_id = NULL; 2389 device->device_id_len = 0; 2390 device->supported_vpds = NULL; 2391 device->supported_vpds_len = 0; 2392 return (device); 2393 } 2394 2395 static void 2396 scsi_devise_transport(struct cam_path *path) 2397 { 2398 struct ccb_pathinq cpi; 2399 struct ccb_trans_settings cts; 2400 struct scsi_inquiry_data *inq_buf; 2401 2402 /* Get transport information from the SIM */ 2403 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2404 cpi.ccb_h.func_code = XPT_PATH_INQ; 2405 xpt_action((union ccb *)&cpi); 2406 2407 inq_buf = NULL; 2408 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2409 inq_buf = &path->device->inq_data; 2410 path->device->protocol = PROTO_SCSI; 2411 path->device->protocol_version = 2412 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2413 path->device->transport = cpi.transport; 2414 path->device->transport_version = cpi.transport_version; 2415 2416 /* 2417 * Any device not using SPI3 features should 2418 * be considered SPI2 or lower. 2419 */ 2420 if (inq_buf != NULL) { 2421 if (path->device->transport == XPORT_SPI 2422 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2423 && path->device->transport_version > 2) 2424 path->device->transport_version = 2; 2425 } else { 2426 struct cam_ed* otherdev; 2427 2428 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2429 otherdev != NULL; 2430 otherdev = TAILQ_NEXT(otherdev, links)) { 2431 if (otherdev != path->device) 2432 break; 2433 } 2434 2435 if (otherdev != NULL) { 2436 /* 2437 * Initially assume the same versioning as 2438 * prior luns for this target. 2439 */ 2440 path->device->protocol_version = 2441 otherdev->protocol_version; 2442 path->device->transport_version = 2443 otherdev->transport_version; 2444 } else { 2445 /* Until we know better, opt for safety */ 2446 path->device->protocol_version = 2; 2447 if (path->device->transport == XPORT_SPI) 2448 path->device->transport_version = 2; 2449 else 2450 path->device->transport_version = 0; 2451 } 2452 } 2453 2454 /* 2455 * XXX 2456 * For a device compliant with SPC-2 we should be able 2457 * to determine the transport version supported by 2458 * scrutinizing the version descriptors in the 2459 * inquiry buffer. 2460 */ 2461 2462 /* Tell the controller what we think */ 2463 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2464 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2465 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2466 cts.transport = path->device->transport; 2467 cts.transport_version = path->device->transport_version; 2468 cts.protocol = path->device->protocol; 2469 cts.protocol_version = path->device->protocol_version; 2470 cts.proto_specific.valid = 0; 2471 cts.xport_specific.valid = 0; 2472 xpt_action((union ccb *)&cts); 2473 } 2474 2475 static void 2476 scsi_dev_advinfo(union ccb *start_ccb) 2477 { 2478 struct cam_ed *device; 2479 struct ccb_dev_advinfo *cdai; 2480 off_t amt; 2481 2482 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2483 device = start_ccb->ccb_h.path->device; 2484 cdai = &start_ccb->cdai; 2485 switch(cdai->buftype) { 2486 case CDAI_TYPE_SCSI_DEVID: 2487 if (cdai->flags & CDAI_FLAG_STORE) 2488 return; 2489 cdai->provsiz = device->device_id_len; 2490 if (device->device_id_len == 0) 2491 break; 2492 amt = device->device_id_len; 2493 if (cdai->provsiz > cdai->bufsiz) 2494 amt = cdai->bufsiz; 2495 memcpy(cdai->buf, device->device_id, amt); 2496 break; 2497 case CDAI_TYPE_SERIAL_NUM: 2498 if (cdai->flags & CDAI_FLAG_STORE) 2499 return; 2500 cdai->provsiz = device->serial_num_len; 2501 if (device->serial_num_len == 0) 2502 break; 2503 amt = device->serial_num_len; 2504 if (cdai->provsiz > cdai->bufsiz) 2505 amt = cdai->bufsiz; 2506 memcpy(cdai->buf, device->serial_num, amt); 2507 break; 2508 case CDAI_TYPE_PHYS_PATH: 2509 if (cdai->flags & CDAI_FLAG_STORE) { 2510 if (device->physpath != NULL) { 2511 free(device->physpath, M_CAMXPT); 2512 device->physpath = NULL; 2513 } 2514 device->physpath_len = cdai->bufsiz; 2515 /* Clear existing buffer if zero length */ 2516 if (cdai->bufsiz == 0) 2517 break; 2518 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2519 if (device->physpath == NULL) { 2520 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2521 return; 2522 } 2523 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2524 } else { 2525 cdai->provsiz = device->physpath_len; 2526 if (device->physpath_len == 0) 2527 break; 2528 amt = device->physpath_len; 2529 if (cdai->provsiz > cdai->bufsiz) 2530 amt = cdai->bufsiz; 2531 memcpy(cdai->buf, device->physpath, amt); 2532 } 2533 break; 2534 case CDAI_TYPE_RCAPLONG: 2535 if (cdai->flags & CDAI_FLAG_STORE) { 2536 if (device->rcap_buf != NULL) { 2537 free(device->rcap_buf, M_CAMXPT); 2538 device->rcap_buf = NULL; 2539 } 2540 2541 device->rcap_len = cdai->bufsiz; 2542 /* Clear existing buffer if zero length */ 2543 if (cdai->bufsiz == 0) 2544 break; 2545 2546 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2547 M_NOWAIT); 2548 if (device->rcap_buf == NULL) { 2549 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2550 return; 2551 } 2552 2553 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2554 } else { 2555 cdai->provsiz = device->rcap_len; 2556 if (device->rcap_len == 0) 2557 break; 2558 amt = device->rcap_len; 2559 if (cdai->provsiz > cdai->bufsiz) 2560 amt = cdai->bufsiz; 2561 memcpy(cdai->buf, device->rcap_buf, amt); 2562 } 2563 break; 2564 case CDAI_TYPE_EXT_INQ: 2565 /* 2566 * We fetch extended inquiry data during probe, if 2567 * available. We don't allow changing it. 2568 */ 2569 if (cdai->flags & CDAI_FLAG_STORE) 2570 return; 2571 cdai->provsiz = device->ext_inq_len; 2572 if (device->ext_inq_len == 0) 2573 break; 2574 amt = device->ext_inq_len; 2575 if (cdai->provsiz > cdai->bufsiz) 2576 amt = cdai->bufsiz; 2577 memcpy(cdai->buf, device->ext_inq, amt); 2578 break; 2579 default: 2580 return; 2581 } 2582 start_ccb->ccb_h.status = CAM_REQ_CMP; 2583 2584 if (cdai->flags & CDAI_FLAG_STORE) { 2585 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2586 (void *)(uintptr_t)cdai->buftype); 2587 } 2588 } 2589 2590 static void 2591 scsi_action(union ccb *start_ccb) 2592 { 2593 2594 switch (start_ccb->ccb_h.func_code) { 2595 case XPT_SET_TRAN_SETTINGS: 2596 { 2597 scsi_set_transfer_settings(&start_ccb->cts, 2598 start_ccb->ccb_h.path, 2599 /*async_update*/FALSE); 2600 break; 2601 } 2602 case XPT_SCAN_BUS: 2603 case XPT_SCAN_TGT: 2604 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2605 break; 2606 case XPT_SCAN_LUN: 2607 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2608 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2609 start_ccb); 2610 break; 2611 case XPT_DEV_ADVINFO: 2612 { 2613 scsi_dev_advinfo(start_ccb); 2614 break; 2615 } 2616 default: 2617 xpt_action_default(start_ccb); 2618 break; 2619 } 2620 } 2621 2622 static void 2623 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2624 int async_update) 2625 { 2626 struct ccb_pathinq cpi; 2627 struct ccb_trans_settings cur_cts; 2628 struct ccb_trans_settings_scsi *scsi; 2629 struct ccb_trans_settings_scsi *cur_scsi; 2630 struct scsi_inquiry_data *inq_data; 2631 struct cam_ed *device; 2632 2633 if (path == NULL || (device = path->device) == NULL) { 2634 cts->ccb_h.status = CAM_PATH_INVALID; 2635 xpt_done((union ccb *)cts); 2636 return; 2637 } 2638 2639 if (cts->protocol == PROTO_UNKNOWN 2640 || cts->protocol == PROTO_UNSPECIFIED) { 2641 cts->protocol = device->protocol; 2642 cts->protocol_version = device->protocol_version; 2643 } 2644 2645 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2646 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2647 cts->protocol_version = device->protocol_version; 2648 2649 if (cts->protocol != device->protocol) { 2650 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2651 cts->protocol, device->protocol); 2652 cts->protocol = device->protocol; 2653 } 2654 2655 if (cts->protocol_version > device->protocol_version) { 2656 if (bootverbose) { 2657 xpt_print(path, "Down reving Protocol " 2658 "Version from %d to %d?\n", cts->protocol_version, 2659 device->protocol_version); 2660 } 2661 cts->protocol_version = device->protocol_version; 2662 } 2663 2664 if (cts->transport == XPORT_UNKNOWN 2665 || cts->transport == XPORT_UNSPECIFIED) { 2666 cts->transport = device->transport; 2667 cts->transport_version = device->transport_version; 2668 } 2669 2670 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2671 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2672 cts->transport_version = device->transport_version; 2673 2674 if (cts->transport != device->transport) { 2675 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2676 cts->transport, device->transport); 2677 cts->transport = device->transport; 2678 } 2679 2680 if (cts->transport_version > device->transport_version) { 2681 if (bootverbose) { 2682 xpt_print(path, "Down reving Transport " 2683 "Version from %d to %d?\n", cts->transport_version, 2684 device->transport_version); 2685 } 2686 cts->transport_version = device->transport_version; 2687 } 2688 2689 /* 2690 * Nothing more of interest to do unless 2691 * this is a device connected via the 2692 * SCSI protocol. 2693 */ 2694 if (cts->protocol != PROTO_SCSI) { 2695 if (async_update == FALSE) 2696 xpt_action_default((union ccb *)cts); 2697 return; 2698 } 2699 2700 inq_data = &device->inq_data; 2701 scsi = &cts->proto_specific.scsi; 2702 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2703 cpi.ccb_h.func_code = XPT_PATH_INQ; 2704 xpt_action((union ccb *)&cpi); 2705 2706 /* SCSI specific sanity checking */ 2707 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2708 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2709 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2710 || (device->mintags == 0)) { 2711 /* 2712 * Can't tag on hardware that doesn't support tags, 2713 * doesn't have it enabled, or has broken tag support. 2714 */ 2715 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2716 } 2717 2718 if (async_update == FALSE) { 2719 /* 2720 * Perform sanity checking against what the 2721 * controller and device can do. 2722 */ 2723 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2724 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2725 cur_cts.type = cts->type; 2726 xpt_action((union ccb *)&cur_cts); 2727 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2728 return; 2729 } 2730 cur_scsi = &cur_cts.proto_specific.scsi; 2731 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2732 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2733 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2734 } 2735 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2736 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2737 } 2738 2739 /* SPI specific sanity checking */ 2740 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2741 u_int spi3caps; 2742 struct ccb_trans_settings_spi *spi; 2743 struct ccb_trans_settings_spi *cur_spi; 2744 2745 spi = &cts->xport_specific.spi; 2746 2747 cur_spi = &cur_cts.xport_specific.spi; 2748 2749 /* Fill in any gaps in what the user gave us */ 2750 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2751 spi->sync_period = cur_spi->sync_period; 2752 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2753 spi->sync_period = 0; 2754 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2755 spi->sync_offset = cur_spi->sync_offset; 2756 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2757 spi->sync_offset = 0; 2758 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2759 spi->ppr_options = cur_spi->ppr_options; 2760 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2761 spi->ppr_options = 0; 2762 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2763 spi->bus_width = cur_spi->bus_width; 2764 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2765 spi->bus_width = 0; 2766 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2767 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2768 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2769 } 2770 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2771 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2772 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2773 && (inq_data->flags & SID_Sync) == 0 2774 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2775 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2776 /* Force async */ 2777 spi->sync_period = 0; 2778 spi->sync_offset = 0; 2779 } 2780 2781 switch (spi->bus_width) { 2782 case MSG_EXT_WDTR_BUS_32_BIT: 2783 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2784 || (inq_data->flags & SID_WBus32) != 0 2785 || cts->type == CTS_TYPE_USER_SETTINGS) 2786 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2787 break; 2788 /* Fall Through to 16-bit */ 2789 case MSG_EXT_WDTR_BUS_16_BIT: 2790 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2791 || (inq_data->flags & SID_WBus16) != 0 2792 || cts->type == CTS_TYPE_USER_SETTINGS) 2793 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2794 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2795 break; 2796 } 2797 /* Fall Through to 8-bit */ 2798 default: /* New bus width?? */ 2799 case MSG_EXT_WDTR_BUS_8_BIT: 2800 /* All targets can do this */ 2801 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2802 break; 2803 } 2804 2805 spi3caps = cpi.xport_specific.spi.ppr_options; 2806 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2807 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2808 spi3caps &= inq_data->spi3data; 2809 2810 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2811 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2812 2813 if ((spi3caps & SID_SPI_IUS) == 0) 2814 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2815 2816 if ((spi3caps & SID_SPI_QAS) == 0) 2817 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2818 2819 /* No SPI Transfer settings are allowed unless we are wide */ 2820 if (spi->bus_width == 0) 2821 spi->ppr_options = 0; 2822 2823 if ((spi->valid & CTS_SPI_VALID_DISC) 2824 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2825 /* 2826 * Can't tag queue without disconnection. 2827 */ 2828 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2829 scsi->valid |= CTS_SCSI_VALID_TQ; 2830 } 2831 2832 /* 2833 * If we are currently performing tagged transactions to 2834 * this device and want to change its negotiation parameters, 2835 * go non-tagged for a bit to give the controller a chance to 2836 * negotiate unhampered by tag messages. 2837 */ 2838 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2839 && (device->inq_flags & SID_CmdQue) != 0 2840 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2841 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2842 CTS_SPI_VALID_SYNC_OFFSET| 2843 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2844 scsi_toggle_tags(path); 2845 } 2846 2847 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2848 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2849 int device_tagenb; 2850 2851 /* 2852 * If we are transitioning from tags to no-tags or 2853 * vice-versa, we need to carefully freeze and restart 2854 * the queue so that we don't overlap tagged and non-tagged 2855 * commands. We also temporarily stop tags if there is 2856 * a change in transfer negotiation settings to allow 2857 * "tag-less" negotiation. 2858 */ 2859 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2860 || (device->inq_flags & SID_CmdQue) != 0) 2861 device_tagenb = TRUE; 2862 else 2863 device_tagenb = FALSE; 2864 2865 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2866 && device_tagenb == FALSE) 2867 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2868 && device_tagenb == TRUE)) { 2869 2870 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2871 /* 2872 * Delay change to use tags until after a 2873 * few commands have gone to this device so 2874 * the controller has time to perform transfer 2875 * negotiations without tagged messages getting 2876 * in the way. 2877 */ 2878 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2879 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2880 } else { 2881 xpt_stop_tags(path); 2882 } 2883 } 2884 } 2885 if (async_update == FALSE) 2886 xpt_action_default((union ccb *)cts); 2887 } 2888 2889 static void 2890 scsi_toggle_tags(struct cam_path *path) 2891 { 2892 struct cam_ed *dev; 2893 2894 /* 2895 * Give controllers a chance to renegotiate 2896 * before starting tag operations. We 2897 * "toggle" tagged queuing off then on 2898 * which causes the tag enable command delay 2899 * counter to come into effect. 2900 */ 2901 dev = path->device; 2902 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2903 || ((dev->inq_flags & SID_CmdQue) != 0 2904 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2905 struct ccb_trans_settings cts; 2906 2907 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2908 cts.protocol = PROTO_SCSI; 2909 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2910 cts.transport = XPORT_UNSPECIFIED; 2911 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2912 cts.proto_specific.scsi.flags = 0; 2913 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2914 scsi_set_transfer_settings(&cts, path, 2915 /*async_update*/TRUE); 2916 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2917 scsi_set_transfer_settings(&cts, path, 2918 /*async_update*/TRUE); 2919 } 2920 } 2921 2922 /* 2923 * Handle any per-device event notifications that require action by the XPT. 2924 */ 2925 static void 2926 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2927 struct cam_ed *device, void *async_arg) 2928 { 2929 cam_status status; 2930 struct cam_path newpath; 2931 2932 /* 2933 * We only need to handle events for real devices. 2934 */ 2935 if (target->target_id == CAM_TARGET_WILDCARD 2936 || device->lun_id == CAM_LUN_WILDCARD) 2937 return; 2938 2939 /* 2940 * We need our own path with wildcards expanded to 2941 * handle certain types of events. 2942 */ 2943 if ((async_code == AC_SENT_BDR) 2944 || (async_code == AC_BUS_RESET) 2945 || (async_code == AC_INQ_CHANGED)) 2946 status = xpt_compile_path(&newpath, NULL, 2947 bus->path_id, 2948 target->target_id, 2949 device->lun_id); 2950 else 2951 status = CAM_REQ_CMP_ERR; 2952 2953 if (status == CAM_REQ_CMP) { 2954 2955 /* 2956 * Allow transfer negotiation to occur in a 2957 * tag free environment and after settle delay. 2958 */ 2959 if (async_code == AC_SENT_BDR 2960 || async_code == AC_BUS_RESET) { 2961 cam_freeze_devq(&newpath); 2962 cam_release_devq(&newpath, 2963 RELSIM_RELEASE_AFTER_TIMEOUT, 2964 /*reduction*/0, 2965 /*timeout*/scsi_delay, 2966 /*getcount_only*/0); 2967 scsi_toggle_tags(&newpath); 2968 } 2969 2970 if (async_code == AC_INQ_CHANGED) { 2971 /* 2972 * We've sent a start unit command, or 2973 * something similar to a device that 2974 * may have caused its inquiry data to 2975 * change. So we re-scan the device to 2976 * refresh the inquiry data for it. 2977 */ 2978 scsi_scan_lun(newpath.periph, &newpath, 2979 CAM_EXPECT_INQ_CHANGE, NULL); 2980 } 2981 xpt_release_path(&newpath); 2982 } else if (async_code == AC_LOST_DEVICE && 2983 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2984 device->flags |= CAM_DEV_UNCONFIGURED; 2985 xpt_release_device(device); 2986 } else if (async_code == AC_TRANSFER_NEG) { 2987 struct ccb_trans_settings *settings; 2988 struct cam_path path; 2989 2990 settings = (struct ccb_trans_settings *)async_arg; 2991 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 2992 device->lun_id); 2993 scsi_set_transfer_settings(settings, &path, 2994 /*async_update*/TRUE); 2995 xpt_release_path(&path); 2996 } 2997 } 2998 2999 static void 3000 scsi_announce_periph(struct cam_periph *periph) 3001 { 3002 struct ccb_pathinq cpi; 3003 struct ccb_trans_settings cts; 3004 struct cam_path *path = periph->path; 3005 u_int speed; 3006 u_int freq; 3007 u_int mb; 3008 3009 cam_periph_assert(periph, MA_OWNED); 3010 3011 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 3012 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3013 cts.type = CTS_TYPE_CURRENT_SETTINGS; 3014 xpt_action((union ccb*)&cts); 3015 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3016 return; 3017 /* Ask the SIM for its base transfer speed */ 3018 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3019 cpi.ccb_h.func_code = XPT_PATH_INQ; 3020 xpt_action((union ccb *)&cpi); 3021 /* Report connection speed */ 3022 speed = cpi.base_transfer_speed; 3023 freq = 0; 3024 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3025 struct ccb_trans_settings_spi *spi = 3026 &cts.xport_specific.spi; 3027 3028 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3029 && spi->sync_offset != 0) { 3030 freq = scsi_calc_syncsrate(spi->sync_period); 3031 speed = freq; 3032 } 3033 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3034 speed *= (0x01 << spi->bus_width); 3035 } 3036 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3037 struct ccb_trans_settings_fc *fc = 3038 &cts.xport_specific.fc; 3039 3040 if (fc->valid & CTS_FC_VALID_SPEED) 3041 speed = fc->bitrate; 3042 } 3043 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) { 3044 struct ccb_trans_settings_sas *sas = 3045 &cts.xport_specific.sas; 3046 3047 if (sas->valid & CTS_SAS_VALID_SPEED) 3048 speed = sas->bitrate; 3049 } 3050 mb = speed / 1000; 3051 if (mb > 0) 3052 printf("%s%d: %d.%03dMB/s transfers", 3053 periph->periph_name, periph->unit_number, 3054 mb, speed % 1000); 3055 else 3056 printf("%s%d: %dKB/s transfers", periph->periph_name, 3057 periph->unit_number, speed); 3058 /* Report additional information about SPI connections */ 3059 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3060 struct ccb_trans_settings_spi *spi; 3061 3062 spi = &cts.xport_specific.spi; 3063 if (freq != 0) { 3064 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3065 freq % 1000, 3066 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3067 ? " DT" : "", 3068 spi->sync_offset); 3069 } 3070 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3071 && spi->bus_width > 0) { 3072 if (freq != 0) { 3073 printf(", "); 3074 } else { 3075 printf(" ("); 3076 } 3077 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3078 } else if (freq != 0) { 3079 printf(")"); 3080 } 3081 } 3082 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3083 struct ccb_trans_settings_fc *fc; 3084 3085 fc = &cts.xport_specific.fc; 3086 if (fc->valid & CTS_FC_VALID_WWNN) 3087 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3088 if (fc->valid & CTS_FC_VALID_WWPN) 3089 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3090 if (fc->valid & CTS_FC_VALID_PORT) 3091 printf(" PortID 0x%x", fc->port); 3092 } 3093 printf("\n"); 3094 } 3095
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