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sys/cam/scsi/scsi_xpt.c
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1 /*- 2 * Implementation of the SCSI Transport 3 * 4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5 * 6 * Copyright (c) 1997, 1998, 1999 Justin T. Gibbs. 7 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification, immediately at the beginning of the file. 16 * 2. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/bus.h> 37 #include <sys/systm.h> 38 #include <sys/types.h> 39 #include <sys/malloc.h> 40 #include <sys/kernel.h> 41 #include <sys/time.h> 42 #include <sys/conf.h> 43 #include <sys/fcntl.h> 44 #include <sys/md5.h> 45 #include <sys/sbuf.h> 46 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #include <sys/sysctl.h> 50 51 #include <cam/cam.h> 52 #include <cam/cam_ccb.h> 53 #include <cam/cam_queue.h> 54 #include <cam/cam_periph.h> 55 #include <cam/cam_sim.h> 56 #include <cam/cam_xpt.h> 57 #include <cam/cam_xpt_sim.h> 58 #include <cam/cam_xpt_periph.h> 59 #include <cam/cam_xpt_internal.h> 60 #include <cam/cam_debug.h> 61 62 #include <cam/scsi/scsi_all.h> 63 #include <cam/scsi/scsi_message.h> 64 #include <cam/scsi/scsi_pass.h> 65 #include <machine/stdarg.h> /* for xpt_print below */ 66 #include "opt_cam.h" 67 68 struct scsi_quirk_entry { 69 struct scsi_inquiry_pattern inq_pat; 70 u_int8_t quirks; 71 #define CAM_QUIRK_NOLUNS 0x01 72 #define CAM_QUIRK_NOVPDS 0x02 73 #define CAM_QUIRK_HILUNS 0x04 74 #define CAM_QUIRK_NOHILUNS 0x08 75 #define CAM_QUIRK_NORPTLUNS 0x10 76 u_int mintags; 77 u_int maxtags; 78 }; 79 #define SCSI_QUIRK(dev) ((struct scsi_quirk_entry *)((dev)->quirk)) 80 81 static int cam_srch_hi = 0; 82 SYSCTL_INT(_kern_cam, OID_AUTO, cam_srch_hi, CTLFLAG_RWTUN, 83 &cam_srch_hi, 0, "Search above LUN 7 for SCSI3 and greater devices"); 84 85 #define CAM_SCSI2_MAXLUN 8 86 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 87 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 88 RPL_LUNDATA_ATYP_PERIPH) || \ 89 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 90 RPL_LUNDATA_ATYP_FLAT)) 91 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 92 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 93 RPL_LUNDATA_ATYP_PERIPH) { \ 94 (lval) = (lp)->luns[(i)].lundata[1]; \ 95 } else { \ 96 (lval) = (lp)->luns[(i)].lundata[0]; \ 97 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 98 (lval) <<= 8; \ 99 (lval) |= (lp)->luns[(i)].lundata[1]; \ 100 } 101 #define CAM_GET_LUN(lp, i, lval) \ 102 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \ 103 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval); 104 105 /* 106 * If we're not quirked to search <= the first 8 luns 107 * and we are either quirked to search above lun 8, 108 * or we're > SCSI-2 and we've enabled hilun searching, 109 * or we're > SCSI-2 and the last lun was a success, 110 * we can look for luns above lun 8. 111 */ 112 #define CAN_SRCH_HI_SPARSE(dv) \ 113 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 114 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 115 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 116 117 #define CAN_SRCH_HI_DENSE(dv) \ 118 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 119 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 120 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 121 122 static periph_init_t probe_periph_init; 123 124 static struct periph_driver probe_driver = 125 { 126 probe_periph_init, "probe", 127 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 128 CAM_PERIPH_DRV_EARLY 129 }; 130 131 PERIPHDRIVER_DECLARE(probe, probe_driver); 132 133 typedef enum { 134 PROBE_TUR, 135 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 136 PROBE_FULL_INQUIRY, 137 PROBE_REPORT_LUNS, 138 PROBE_MODE_SENSE, 139 PROBE_SUPPORTED_VPD_LIST, 140 PROBE_DEVICE_ID, 141 PROBE_EXTENDED_INQUIRY, 142 PROBE_SERIAL_NUM, 143 PROBE_TUR_FOR_NEGOTIATION, 144 PROBE_INQUIRY_BASIC_DV1, 145 PROBE_INQUIRY_BASIC_DV2, 146 PROBE_DV_EXIT, 147 PROBE_DONE, 148 PROBE_INVALID 149 } probe_action; 150 151 static char *probe_action_text[] = { 152 "PROBE_TUR", 153 "PROBE_INQUIRY", 154 "PROBE_FULL_INQUIRY", 155 "PROBE_REPORT_LUNS", 156 "PROBE_MODE_SENSE", 157 "PROBE_SUPPORTED_VPD_LIST", 158 "PROBE_DEVICE_ID", 159 "PROBE_EXTENDED_INQUIRY", 160 "PROBE_SERIAL_NUM", 161 "PROBE_TUR_FOR_NEGOTIATION", 162 "PROBE_INQUIRY_BASIC_DV1", 163 "PROBE_INQUIRY_BASIC_DV2", 164 "PROBE_DV_EXIT", 165 "PROBE_DONE", 166 "PROBE_INVALID" 167 }; 168 169 #define PROBE_SET_ACTION(softc, newaction) \ 170 do { \ 171 char **text; \ 172 text = probe_action_text; \ 173 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 174 ("Probe %s to %s\n", text[(softc)->action], \ 175 text[(newaction)])); \ 176 (softc)->action = (newaction); \ 177 } while(0) 178 179 typedef enum { 180 PROBE_INQUIRY_CKSUM = 0x01, 181 PROBE_NO_ANNOUNCE = 0x04, 182 PROBE_EXTLUN = 0x08 183 } probe_flags; 184 185 typedef struct { 186 TAILQ_HEAD(, ccb_hdr) request_ccbs; 187 probe_action action; 188 probe_flags flags; 189 MD5_CTX context; 190 u_int8_t digest[16]; 191 struct cam_periph *periph; 192 } probe_softc; 193 194 static const char quantum[] = "QUANTUM"; 195 static const char sony[] = "SONY"; 196 static const char west_digital[] = "WDIGTL"; 197 static const char samsung[] = "SAMSUNG"; 198 static const char seagate[] = "SEAGATE"; 199 static const char microp[] = "MICROP"; 200 201 static struct scsi_quirk_entry scsi_quirk_table[] = 202 { 203 { 204 /* Reports QUEUE FULL for temporary resource shortages */ 205 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 206 /*quirks*/0, /*mintags*/24, /*maxtags*/32 207 }, 208 { 209 /* Reports QUEUE FULL for temporary resource shortages */ 210 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 211 /*quirks*/0, /*mintags*/24, /*maxtags*/32 212 }, 213 { 214 /* Reports QUEUE FULL for temporary resource shortages */ 215 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 216 /*quirks*/0, /*mintags*/24, /*maxtags*/32 217 }, 218 { 219 /* Broken tagged queuing drive */ 220 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 221 /*quirks*/0, /*mintags*/0, /*maxtags*/ 222 }, 223 { 224 /* Broken tagged queuing drive */ 225 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 226 /*quirks*/0, /*mintags*/0, /*maxtags*/ 227 }, 228 { 229 /* Broken tagged queuing drive */ 230 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 231 /*quirks*/0, /*mintags*/0, /*maxtags*/ 232 }, 233 { 234 /* 235 * Unfortunately, the Quantum Atlas III has the same 236 * problem as the Atlas II drives above. 237 * Reported by: "Johan Granlund" <johan@granlund.nu> 238 * 239 * For future reference, the drive with the problem was: 240 * QUANTUM QM39100TD-SW N1B0 241 * 242 * It's possible that Quantum will fix the problem in later 243 * firmware revisions. If that happens, the quirk entry 244 * will need to be made specific to the firmware revisions 245 * with the problem. 246 * 247 */ 248 /* Reports QUEUE FULL for temporary resource shortages */ 249 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 250 /*quirks*/0, /*mintags*/24, /*maxtags*/32 251 }, 252 { 253 /* 254 * 18 Gig Atlas III, same problem as the 9G version. 255 * Reported by: Andre Albsmeier 256 * <andre.albsmeier@mchp.siemens.de> 257 * 258 * For future reference, the drive with the problem was: 259 * QUANTUM QM318000TD-S N491 260 */ 261 /* Reports QUEUE FULL for temporary resource shortages */ 262 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 263 /*quirks*/0, /*mintags*/24, /*maxtags*/32 264 }, 265 { 266 /* 267 * Broken tagged queuing drive 268 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 269 * and: Martin Renters <martin@tdc.on.ca> 270 */ 271 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 272 /*quirks*/0, /*mintags*/0, /*maxtags*/ 273 }, 274 /* 275 * The Seagate Medalist Pro drives have very poor write 276 * performance with anything more than 2 tags. 277 * 278 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 279 * Drive: <SEAGATE ST36530N 1444> 280 * 281 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 282 * Drive: <SEAGATE ST34520W 1281> 283 * 284 * No one has actually reported that the 9G version 285 * (ST39140*) of the Medalist Pro has the same problem, but 286 * we're assuming that it does because the 4G and 6.5G 287 * versions of the drive are broken. 288 */ 289 { 290 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 291 /*quirks*/0, /*mintags*/2, /*maxtags*/2 292 }, 293 { 294 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 295 /*quirks*/0, /*mintags*/2, /*maxtags*/2 296 }, 297 { 298 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 299 /*quirks*/0, /*mintags*/2, /*maxtags*/2 300 }, 301 { 302 /* 303 * Experiences command timeouts under load with a 304 * tag count higher than 55. 305 */ 306 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 307 /*quirks*/0, /*mintags*/2, /*maxtags*/55 308 }, 309 { 310 /* 311 * Slow when tagged queueing is enabled. Write performance 312 * steadily drops off with more and more concurrent 313 * transactions. Best sequential write performance with 314 * tagged queueing turned off and write caching turned on. 315 * 316 * PR: kern/10398 317 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 318 * Drive: DCAS-34330 w/ "S65A" firmware. 319 * 320 * The drive with the problem had the "S65A" firmware 321 * revision, and has also been reported (by Stephen J. 322 * Roznowski <sjr@home.net>) for a drive with the "S61A" 323 * firmware revision. 324 * 325 * Although no one has reported problems with the 2 gig 326 * version of the DCAS drive, the assumption is that it 327 * has the same problems as the 4 gig version. Therefore 328 * this quirk entries disables tagged queueing for all 329 * DCAS drives. 330 */ 331 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 332 /*quirks*/0, /*mintags*/0, /*maxtags*/ 333 }, 334 { 335 /* Broken tagged queuing drive */ 336 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 337 /*quirks*/0, /*mintags*/0, /*maxtags*/ 338 }, 339 { 340 /* Broken tagged queuing drive */ 341 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 342 /*quirks*/0, /*mintags*/0, /*maxtags*/ 343 }, 344 { 345 /* This does not support other than LUN 0 */ 346 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 347 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 348 }, 349 { 350 /* 351 * Broken tagged queuing drive. 352 * Submitted by: 353 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 354 * in PR kern/9535 355 */ 356 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 357 /*quirks*/0, /*mintags*/0, /*maxtags*/ 358 }, 359 { 360 /* 361 * Slow when tagged queueing is enabled. (1.5MB/sec versus 362 * 8MB/sec.) 363 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 364 * Best performance with these drives is achieved with 365 * tagged queueing turned off, and write caching turned on. 366 */ 367 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 368 /*quirks*/0, /*mintags*/0, /*maxtags*/ 369 }, 370 { 371 /* 372 * Slow when tagged queueing is enabled. (1.5MB/sec versus 373 * 8MB/sec.) 374 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 375 * Best performance with these drives is achieved with 376 * tagged queueing turned off, and write caching turned on. 377 */ 378 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 379 /*quirks*/0, /*mintags*/0, /*maxtags*/ 380 }, 381 { 382 /* 383 * Doesn't handle queue full condition correctly, 384 * so we need to limit maxtags to what the device 385 * can handle instead of determining this automatically. 386 */ 387 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 388 /*quirks*/0, /*mintags*/2, /*maxtags*/32 389 }, 390 { 391 /* Really only one LUN */ 392 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 393 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 394 }, 395 { 396 /* I can't believe we need a quirk for DPT volumes. */ 397 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 398 CAM_QUIRK_NOLUNS, 399 /*mintags*/0, /*maxtags*/255 400 }, 401 { 402 /* 403 * Many Sony CDROM drives don't like multi-LUN probing. 404 */ 405 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 406 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 407 }, 408 { 409 /* 410 * This drive doesn't like multiple LUN probing. 411 * Submitted by: Parag Patel <parag@cgt.com> 412 */ 413 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 414 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 415 }, 416 { 417 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 418 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 419 }, 420 { 421 /* 422 * The 8200 doesn't like multi-lun probing, and probably 423 * don't like serial number requests either. 424 */ 425 { 426 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 427 "EXB-8200*", "*" 428 }, 429 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 430 }, 431 { 432 /* 433 * Let's try the same as above, but for a drive that says 434 * it's an IPL-6860 but is actually an EXB 8200. 435 */ 436 { 437 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 438 "IPL-6860*", "*" 439 }, 440 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 441 }, 442 { 443 /* 444 * These Hitachi drives don't like multi-lun probing. 445 * The PR submitter has a DK319H, but says that the Linux 446 * kernel has a similar work-around for the DK312 and DK314, 447 * so all DK31* drives are quirked here. 448 * PR: misc/18793 449 * Submitted by: Paul Haddad <paul@pth.com> 450 */ 451 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 452 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 453 }, 454 { 455 /* 456 * The Hitachi CJ series with J8A8 firmware apparently has 457 * problems with tagged commands. 458 * PR: 23536 459 * Reported by: amagai@nue.org 460 */ 461 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 462 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 463 }, 464 { 465 /* 466 * These are the large storage arrays. 467 * Submitted by: William Carrel <william.carrel@infospace.com> 468 */ 469 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 470 CAM_QUIRK_HILUNS, 2, 1024 471 }, 472 { 473 /* 474 * This old revision of the TDC3600 is also SCSI-1, and 475 * hangs upon serial number probing. 476 */ 477 { 478 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 479 " TDC 3600", "U07:" 480 }, 481 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/ 482 }, 483 { 484 /* 485 * Would repond to all LUNs if asked for. 486 */ 487 { 488 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 489 "CP150", "*" 490 }, 491 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 492 }, 493 { 494 /* 495 * Would repond to all LUNs if asked for. 496 */ 497 { 498 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 499 "96X2*", "*" 500 }, 501 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 502 }, 503 { 504 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 505 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 506 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 507 }, 508 { 509 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 510 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 511 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 512 }, 513 { 514 /* TeraSolutions special settings for TRC-22 RAID */ 515 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 516 /*quirks*/0, /*mintags*/55, /*maxtags*/255 517 }, 518 { 519 /* Veritas Storage Appliance */ 520 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 521 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 522 }, 523 { 524 /* 525 * Would respond to all LUNs. Device type and removable 526 * flag are jumper-selectable. 527 */ 528 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 529 "Tahiti 1", "*" 530 }, 531 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 532 }, 533 { 534 /* EasyRAID E5A aka. areca ARC-6010 */ 535 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 536 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 537 }, 538 { 539 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 540 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/ 541 }, 542 { 543 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 544 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 545 }, 546 { 547 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 548 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 549 }, 550 { 551 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 552 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 553 }, 554 { 555 /* Default tagged queuing parameters for all devices */ 556 { 557 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 558 /*vendor*/"*", /*product*/"*", /*revision*/"*" 559 }, 560 /*quirks*/0, /*mintags*/2, /*maxtags*/255 561 }, 562 }; 563 564 static cam_status proberegister(struct cam_periph *periph, 565 void *arg); 566 static void probeschedule(struct cam_periph *probe_periph); 567 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 568 static void proberequestdefaultnegotiation(struct cam_periph *periph); 569 static int proberequestbackoff(struct cam_periph *periph, 570 struct cam_ed *device); 571 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 572 static void probe_purge_old(struct cam_path *path, 573 struct scsi_report_luns_data *new, 574 probe_flags flags); 575 static void probecleanup(struct cam_periph *periph); 576 static void scsi_find_quirk(struct cam_ed *device); 577 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 578 static void scsi_scan_lun(struct cam_periph *periph, 579 struct cam_path *path, cam_flags flags, 580 union ccb *ccb); 581 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 582 static struct cam_ed * 583 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 584 lun_id_t lun_id); 585 static void scsi_devise_transport(struct cam_path *path); 586 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 587 struct cam_path *path, 588 int async_update); 589 static void scsi_toggle_tags(struct cam_path *path); 590 static void scsi_dev_async(u_int32_t async_code, 591 struct cam_eb *bus, 592 struct cam_et *target, 593 struct cam_ed *device, 594 void *async_arg); 595 static void scsi_action(union ccb *start_ccb); 596 static void scsi_announce_periph(struct cam_periph *periph); 597 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb); 598 static void scsi_proto_announce(struct cam_ed *device); 599 static void scsi_proto_announce_sbuf(struct cam_ed *device, 600 struct sbuf *sb); 601 static void scsi_proto_denounce(struct cam_ed *device); 602 static void scsi_proto_denounce_sbuf(struct cam_ed *device, 603 struct sbuf *sb); 604 static void scsi_proto_debug_out(union ccb *ccb); 605 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *); 606 607 static struct xpt_xport_ops scsi_xport_ops = { 608 .alloc_device = scsi_alloc_device, 609 .action = scsi_action, 610 .async = scsi_dev_async, 611 .announce = scsi_announce_periph, 612 .announce_sbuf = scsi_announce_periph_sbuf, 613 }; 614 #define SCSI_XPT_XPORT(x, X) \ 615 static struct xpt_xport scsi_xport_ ## x = { \ 616 .xport = XPORT_ ## X, \ 617 .name = #x, \ 618 .ops = &scsi_xport_ops, \ 619 }; \ 620 CAM_XPT_XPORT(scsi_xport_ ## x); 621 622 SCSI_XPT_XPORT(spi, SPI); 623 SCSI_XPT_XPORT(sas, SAS); 624 SCSI_XPT_XPORT(fc, FC); 625 SCSI_XPT_XPORT(usb, USB); 626 SCSI_XPT_XPORT(iscsi, ISCSI); 627 SCSI_XPT_XPORT(srp, SRP); 628 SCSI_XPT_XPORT(ppb, PPB); 629 630 #undef SCSI_XPORT_XPORT 631 632 static struct xpt_proto_ops scsi_proto_ops = { 633 .announce = scsi_proto_announce, 634 .announce_sbuf = scsi_proto_announce_sbuf, 635 .denounce = scsi_proto_denounce, 636 .denounce_sbuf = scsi_proto_denounce_sbuf, 637 .debug_out = scsi_proto_debug_out, 638 }; 639 static struct xpt_proto scsi_proto = { 640 .proto = PROTO_SCSI, 641 .name = "scsi", 642 .ops = &scsi_proto_ops, 643 }; 644 CAM_XPT_PROTO(scsi_proto); 645 646 static void 647 probe_periph_init(void) 648 { 649 } 650 651 static cam_status 652 proberegister(struct cam_periph *periph, void *arg) 653 { 654 union ccb *request_ccb; /* CCB representing the probe request */ 655 probe_softc *softc; 656 657 request_ccb = (union ccb *)arg; 658 if (request_ccb == NULL) { 659 printf("proberegister: no probe CCB, " 660 "can't register device\n"); 661 return(CAM_REQ_CMP_ERR); 662 } 663 664 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 665 666 if (softc == NULL) { 667 printf("proberegister: Unable to probe new device. " 668 "Unable to allocate softc\n"); 669 return(CAM_REQ_CMP_ERR); 670 } 671 TAILQ_INIT(&softc->request_ccbs); 672 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 673 periph_links.tqe); 674 softc->flags = 0; 675 periph->softc = softc; 676 softc->periph = periph; 677 softc->action = PROBE_INVALID; 678 if (cam_periph_acquire(periph) != 0) 679 return (CAM_REQ_CMP_ERR); 680 681 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 682 scsi_devise_transport(periph->path); 683 684 /* 685 * Ensure we've waited at least a bus settle 686 * delay before attempting to probe the device. 687 * For HBAs that don't do bus resets, this won't make a difference. 688 */ 689 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 690 scsi_delay); 691 probeschedule(periph); 692 return(CAM_REQ_CMP); 693 } 694 695 static void 696 probeschedule(struct cam_periph *periph) 697 { 698 struct ccb_pathinq cpi; 699 union ccb *ccb; 700 probe_softc *softc; 701 702 softc = (probe_softc *)periph->softc; 703 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 704 705 xpt_path_inq(&cpi, periph->path); 706 707 /* 708 * If a device has gone away and another device, or the same one, 709 * is back in the same place, it should have a unit attention 710 * condition pending. It will not report the unit attention in 711 * response to an inquiry, which may leave invalid transfer 712 * negotiations in effect. The TUR will reveal the unit attention 713 * condition. Only send the TUR for lun 0, since some devices 714 * will get confused by commands other than inquiry to non-existent 715 * luns. If you think a device has gone away start your scan from 716 * lun 0. This will insure that any bogus transfer settings are 717 * invalidated. 718 * 719 * If we haven't seen the device before and the controller supports 720 * some kind of transfer negotiation, negotiate with the first 721 * sent command if no bus reset was performed at startup. This 722 * ensures that the device is not confused by transfer negotiation 723 * settings left over by loader or BIOS action. 724 */ 725 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 726 && (ccb->ccb_h.target_lun == 0)) { 727 PROBE_SET_ACTION(softc, PROBE_TUR); 728 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 729 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 730 proberequestdefaultnegotiation(periph); 731 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 732 } else { 733 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 734 } 735 736 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 737 softc->flags |= PROBE_NO_ANNOUNCE; 738 else 739 softc->flags &= ~PROBE_NO_ANNOUNCE; 740 741 if (cpi.hba_misc & PIM_EXTLUNS) 742 softc->flags |= PROBE_EXTLUN; 743 else 744 softc->flags &= ~PROBE_EXTLUN; 745 746 xpt_schedule(periph, CAM_PRIORITY_XPT); 747 } 748 749 static void 750 probestart(struct cam_periph *periph, union ccb *start_ccb) 751 { 752 /* Probe the device that our peripheral driver points to */ 753 struct ccb_scsiio *csio; 754 probe_softc *softc; 755 756 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 757 758 softc = (probe_softc *)periph->softc; 759 csio = &start_ccb->csio; 760 again: 761 762 switch (softc->action) { 763 case PROBE_TUR: 764 case PROBE_TUR_FOR_NEGOTIATION: 765 case PROBE_DV_EXIT: 766 { 767 scsi_test_unit_ready(csio, 768 /*retries*/4, 769 probedone, 770 MSG_SIMPLE_Q_TAG, 771 SSD_FULL_SIZE, 772 /*timeout*/60000); 773 break; 774 } 775 case PROBE_INQUIRY: 776 case PROBE_FULL_INQUIRY: 777 { 778 u_int inquiry_len; 779 struct scsi_inquiry_data *inq_buf; 780 781 inq_buf = &periph->path->device->inq_data; 782 783 /* 784 * If the device is currently configured, we calculate an 785 * MD5 checksum of the inquiry data, and if the serial number 786 * length is greater than 0, add the serial number data 787 * into the checksum as well. Once the inquiry and the 788 * serial number check finish, we attempt to figure out 789 * whether we still have the same device. 790 */ 791 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) { 792 softc->flags &= ~PROBE_INQUIRY_CKSUM; 793 } else if ((softc->flags & PROBE_INQUIRY_CKSUM) == 0) { 794 MD5Init(&softc->context); 795 MD5Update(&softc->context, (unsigned char *)inq_buf, 796 sizeof(struct scsi_inquiry_data)); 797 if (periph->path->device->serial_num_len > 0) { 798 MD5Update(&softc->context, 799 periph->path->device->serial_num, 800 periph->path->device->serial_num_len); 801 } 802 MD5Final(softc->digest, &softc->context); 803 softc->flags |= PROBE_INQUIRY_CKSUM; 804 } 805 806 if (softc->action == PROBE_INQUIRY) 807 inquiry_len = SHORT_INQUIRY_LENGTH; 808 else 809 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 810 811 /* 812 * Some parallel SCSI devices fail to send an 813 * ignore wide residue message when dealing with 814 * odd length inquiry requests. Round up to be 815 * safe. 816 */ 817 inquiry_len = roundup2(inquiry_len, 2); 818 819 scsi_inquiry(csio, 820 /*retries*/4, 821 probedone, 822 MSG_SIMPLE_Q_TAG, 823 (u_int8_t *)inq_buf, 824 inquiry_len, 825 /*evpd*/FALSE, 826 /*page_code*/0, 827 SSD_MIN_SIZE, 828 /*timeout*/60 * 1000); 829 break; 830 } 831 case PROBE_REPORT_LUNS: 832 { 833 void *rp; 834 835 rp = malloc(periph->path->target->rpl_size, 836 M_CAMXPT, M_NOWAIT | M_ZERO); 837 if (rp == NULL) { 838 struct scsi_inquiry_data *inq_buf; 839 inq_buf = &periph->path->device->inq_data; 840 xpt_print(periph->path, 841 "Unable to alloc report luns storage\n"); 842 if (INQ_DATA_TQ_ENABLED(inq_buf)) 843 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 844 else 845 PROBE_SET_ACTION(softc, 846 PROBE_SUPPORTED_VPD_LIST); 847 goto again; 848 } 849 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 850 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 851 SSD_FULL_SIZE, 60000); break; 852 break; 853 } 854 case PROBE_MODE_SENSE: 855 { 856 void *mode_buf; 857 int mode_buf_len; 858 859 mode_buf_len = sizeof(struct scsi_mode_header_6) 860 + sizeof(struct scsi_mode_blk_desc) 861 + sizeof(struct scsi_control_page); 862 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 863 if (mode_buf != NULL) { 864 scsi_mode_sense(csio, 865 /*retries*/4, 866 probedone, 867 MSG_SIMPLE_Q_TAG, 868 /*dbd*/FALSE, 869 SMS_PAGE_CTRL_CURRENT, 870 SMS_CONTROL_MODE_PAGE, 871 mode_buf, 872 mode_buf_len, 873 SSD_FULL_SIZE, 874 /*timeout*/60000); 875 break; 876 } 877 xpt_print(periph->path, "Unable to mode sense control page - " 878 "malloc failure\n"); 879 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 880 } 881 /* FALLTHROUGH */ 882 case PROBE_SUPPORTED_VPD_LIST: 883 { 884 struct scsi_vpd_supported_page_list *vpd_list; 885 struct cam_ed *device; 886 887 vpd_list = NULL; 888 device = periph->path->device; 889 890 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 891 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 892 M_NOWAIT | M_ZERO); 893 894 if (vpd_list != NULL) { 895 scsi_inquiry(csio, 896 /*retries*/4, 897 probedone, 898 MSG_SIMPLE_Q_TAG, 899 (u_int8_t *)vpd_list, 900 sizeof(*vpd_list), 901 /*evpd*/TRUE, 902 SVPD_SUPPORTED_PAGE_LIST, 903 SSD_MIN_SIZE, 904 /*timeout*/60 * 1000); 905 break; 906 } 907 done: 908 /* 909 * We'll have to do without, let our probedone 910 * routine finish up for us. 911 */ 912 start_ccb->csio.data_ptr = NULL; 913 cam_freeze_devq(periph->path); 914 cam_periph_doacquire(periph); 915 probedone(periph, start_ccb); 916 return; 917 } 918 case PROBE_DEVICE_ID: 919 { 920 struct scsi_vpd_device_id *devid; 921 922 devid = NULL; 923 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 924 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 925 M_NOWAIT | M_ZERO); 926 927 if (devid != NULL) { 928 scsi_inquiry(csio, 929 /*retries*/4, 930 probedone, 931 MSG_SIMPLE_Q_TAG, 932 (uint8_t *)devid, 933 SVPD_DEVICE_ID_MAX_SIZE, 934 /*evpd*/TRUE, 935 SVPD_DEVICE_ID, 936 SSD_MIN_SIZE, 937 /*timeout*/60 * 1000); 938 break; 939 } 940 goto done; 941 } 942 case PROBE_EXTENDED_INQUIRY: 943 { 944 struct scsi_vpd_extended_inquiry_data *ext_inq; 945 946 ext_inq = NULL; 947 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 948 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 949 M_NOWAIT | M_ZERO); 950 951 if (ext_inq != NULL) { 952 scsi_inquiry(csio, 953 /*retries*/4, 954 probedone, 955 MSG_SIMPLE_Q_TAG, 956 (uint8_t *)ext_inq, 957 sizeof(*ext_inq), 958 /*evpd*/TRUE, 959 SVPD_EXTENDED_INQUIRY_DATA, 960 SSD_MIN_SIZE, 961 /*timeout*/60 * 1000); 962 break; 963 } 964 /* 965 * We'll have to do without, let our probedone 966 * routine finish up for us. 967 */ 968 goto done; 969 } 970 case PROBE_SERIAL_NUM: 971 { 972 struct scsi_vpd_unit_serial_number *serial_buf; 973 struct cam_ed* device; 974 975 serial_buf = NULL; 976 device = periph->path->device; 977 if (device->serial_num != NULL) { 978 free(device->serial_num, M_CAMXPT); 979 device->serial_num = NULL; 980 device->serial_num_len = 0; 981 } 982 983 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 984 serial_buf = (struct scsi_vpd_unit_serial_number *) 985 malloc(sizeof(*serial_buf), M_CAMXPT, 986 M_NOWAIT|M_ZERO); 987 988 if (serial_buf != NULL) { 989 scsi_inquiry(csio, 990 /*retries*/4, 991 probedone, 992 MSG_SIMPLE_Q_TAG, 993 (u_int8_t *)serial_buf, 994 sizeof(*serial_buf), 995 /*evpd*/TRUE, 996 SVPD_UNIT_SERIAL_NUMBER, 997 SSD_MIN_SIZE, 998 /*timeout*/60 * 1000); 999 break; 1000 } 1001 goto done; 1002 } 1003 case PROBE_INQUIRY_BASIC_DV1: 1004 case PROBE_INQUIRY_BASIC_DV2: 1005 { 1006 u_int inquiry_len; 1007 struct scsi_inquiry_data *inq_buf; 1008 1009 inq_buf = &periph->path->device->inq_data; 1010 inquiry_len = roundup2(SID_ADDITIONAL_LENGTH(inq_buf), 2); 1011 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 1012 if (inq_buf == NULL) { 1013 xpt_print(periph->path, "malloc failure- skipping Basic" 1014 "Domain Validation\n"); 1015 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1016 scsi_test_unit_ready(csio, 1017 /*retries*/4, 1018 probedone, 1019 MSG_SIMPLE_Q_TAG, 1020 SSD_FULL_SIZE, 1021 /*timeout*/60000); 1022 break; 1023 } 1024 1025 scsi_inquiry(csio, 1026 /*retries*/4, 1027 probedone, 1028 MSG_SIMPLE_Q_TAG, 1029 (u_int8_t *)inq_buf, 1030 inquiry_len, 1031 /*evpd*/FALSE, 1032 /*page_code*/0, 1033 SSD_MIN_SIZE, 1034 /*timeout*/60 * 1000); 1035 break; 1036 } 1037 default: 1038 panic("probestart: invalid action state 0x%x\n", softc->action); 1039 } 1040 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1041 cam_periph_doacquire(periph); 1042 xpt_action(start_ccb); 1043 } 1044 1045 static void 1046 proberequestdefaultnegotiation(struct cam_periph *periph) 1047 { 1048 struct ccb_trans_settings cts; 1049 1050 memset(&cts, 0, sizeof(cts)); 1051 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1052 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1053 cts.type = CTS_TYPE_USER_SETTINGS; 1054 xpt_action((union ccb *)&cts); 1055 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1056 return; 1057 } 1058 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1059 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1060 xpt_action((union ccb *)&cts); 1061 } 1062 1063 /* 1064 * Backoff Negotiation Code- only pertinent for SPI devices. 1065 */ 1066 static int 1067 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1068 { 1069 struct ccb_trans_settings cts; 1070 struct ccb_trans_settings_spi *spi; 1071 1072 memset(&cts, 0, sizeof (cts)); 1073 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1074 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1075 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1076 xpt_action((union ccb *)&cts); 1077 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1078 if (bootverbose) { 1079 xpt_print(periph->path, 1080 "failed to get current device settings\n"); 1081 } 1082 return (0); 1083 } 1084 if (cts.transport != XPORT_SPI) { 1085 if (bootverbose) { 1086 xpt_print(periph->path, "not SPI transport\n"); 1087 } 1088 return (0); 1089 } 1090 spi = &cts.xport_specific.spi; 1091 1092 /* 1093 * We cannot renegotiate sync rate if we don't have one. 1094 */ 1095 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1096 if (bootverbose) { 1097 xpt_print(periph->path, "no sync rate known\n"); 1098 } 1099 return (0); 1100 } 1101 1102 /* 1103 * We'll assert that we don't have to touch PPR options- the 1104 * SIM will see what we do with period and offset and adjust 1105 * the PPR options as appropriate. 1106 */ 1107 1108 /* 1109 * A sync rate with unknown or zero offset is nonsensical. 1110 * A sync period of zero means Async. 1111 */ 1112 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1113 || spi->sync_offset == 0 || spi->sync_period == 0) { 1114 if (bootverbose) { 1115 xpt_print(periph->path, "no sync rate available\n"); 1116 } 1117 return (0); 1118 } 1119 1120 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1121 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1122 ("hit async: giving up on DV\n")); 1123 return (0); 1124 } 1125 1126 /* 1127 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1128 * We don't try to remember 'last' settings to see if the SIM actually 1129 * gets into the speed we want to set. We check on the SIM telling 1130 * us that a requested speed is bad, but otherwise don't try and 1131 * check the speed due to the asynchronous and handshake nature 1132 * of speed setting. 1133 */ 1134 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1135 for (;;) { 1136 spi->sync_period++; 1137 if (spi->sync_period >= 0xf) { 1138 spi->sync_period = 0; 1139 spi->sync_offset = 0; 1140 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1141 ("setting to async for DV\n")); 1142 /* 1143 * Once we hit async, we don't want to try 1144 * any more settings. 1145 */ 1146 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1147 } else if (bootverbose) { 1148 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1149 ("DV: period 0x%x\n", spi->sync_period)); 1150 printf("setting period to 0x%x\n", spi->sync_period); 1151 } 1152 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1153 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1154 xpt_action((union ccb *)&cts); 1155 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1156 break; 1157 } 1158 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1159 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1160 if (spi->sync_period == 0) { 1161 return (0); 1162 } 1163 } 1164 return (1); 1165 } 1166 1167 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1168 1169 static void 1170 probedone(struct cam_periph *periph, union ccb *done_ccb) 1171 { 1172 probe_softc *softc; 1173 struct cam_path *path; 1174 struct scsi_inquiry_data *inq_buf; 1175 u_int32_t priority; 1176 1177 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1178 1179 softc = (probe_softc *)periph->softc; 1180 path = done_ccb->ccb_h.path; 1181 priority = done_ccb->ccb_h.pinfo.priority; 1182 cam_periph_assert(periph, MA_OWNED); 1183 1184 switch (softc->action) { 1185 case PROBE_TUR: 1186 { 1187 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1188 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1189 ERESTART) { 1190 outr: 1191 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1192 cam_release_devq(path, 0, 0, 0, FALSE); 1193 return; 1194 } 1195 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1196 /* Don't wedge the queue */ 1197 xpt_release_devq(done_ccb->ccb_h.path, 1198 /*count*/1, 1199 /*run_queue*/TRUE); 1200 } 1201 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1202 xpt_release_ccb(done_ccb); 1203 xpt_schedule(periph, priority); 1204 out: 1205 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1206 cam_release_devq(path, 0, 0, 0, FALSE); 1207 cam_periph_release_locked(periph); 1208 return; 1209 } 1210 case PROBE_INQUIRY: 1211 case PROBE_FULL_INQUIRY: 1212 { 1213 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1214 u_int8_t periph_qual; 1215 1216 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1217 scsi_find_quirk(path->device); 1218 inq_buf = &path->device->inq_data; 1219 1220 periph_qual = SID_QUAL(inq_buf); 1221 1222 if (periph_qual == SID_QUAL_LU_CONNECTED || 1223 periph_qual == SID_QUAL_LU_OFFLINE) { 1224 /* 1225 * We conservatively request only 1226 * SHORT_INQUIRY_LEN bytes of inquiry 1227 * information during our first try 1228 * at sending an INQUIRY. If the device 1229 * has more information to give, 1230 * perform a second request specifying 1231 * the amount of information the device 1232 * is willing to give. 1233 */ 1234 if (softc->action == PROBE_INQUIRY 1235 && SID_ADDITIONAL_LENGTH(inq_buf) 1236 > SHORT_INQUIRY_LENGTH) { 1237 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1238 xpt_release_ccb(done_ccb); 1239 xpt_schedule(periph, priority); 1240 goto out; 1241 } 1242 1243 scsi_devise_transport(path); 1244 1245 if (path->device->lun_id == 0 && 1246 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1247 (SCSI_QUIRK(path->device)->quirks & 1248 CAM_QUIRK_NORPTLUNS) == 0) { 1249 PROBE_SET_ACTION(softc, 1250 PROBE_REPORT_LUNS); 1251 /* 1252 * Start with room for *one* lun. 1253 */ 1254 periph->path->target->rpl_size = 16; 1255 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1256 PROBE_SET_ACTION(softc, 1257 PROBE_MODE_SENSE); 1258 else 1259 PROBE_SET_ACTION(softc, 1260 PROBE_SUPPORTED_VPD_LIST); 1261 1262 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1263 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1264 xpt_acquire_device(path->device); 1265 } 1266 xpt_release_ccb(done_ccb); 1267 xpt_schedule(periph, priority); 1268 goto out; 1269 } else if (path->device->lun_id == 0 && 1270 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1271 (SCSI_QUIRK(path->device)->quirks & 1272 CAM_QUIRK_NORPTLUNS) == 0) { 1273 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1274 periph->path->target->rpl_size = 16; 1275 xpt_release_ccb(done_ccb); 1276 xpt_schedule(periph, priority); 1277 goto out; 1278 } 1279 } else if (cam_periph_error(done_ccb, 0, 1280 done_ccb->ccb_h.target_lun > 0 1281 ? SF_RETRY_UA|SF_QUIET_IR 1282 : SF_RETRY_UA) == ERESTART) { 1283 goto outr; 1284 } else { 1285 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1286 /* Don't wedge the queue */ 1287 xpt_release_devq(done_ccb->ccb_h.path, 1288 /*count*/1, /*run_queue*/TRUE); 1289 } 1290 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1291 } 1292 /* 1293 * If we get to this point, we got an error status back 1294 * from the inquiry and the error status doesn't require 1295 * automatically retrying the command. Therefore, the 1296 * inquiry failed. If we had inquiry information before 1297 * for this device, but this latest inquiry command failed, 1298 * the device has probably gone away. If this device isn't 1299 * already marked unconfigured, notify the peripheral 1300 * drivers that this device is no more. 1301 */ 1302 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1303 /* Send the async notification. */ 1304 xpt_async(AC_LOST_DEVICE, path, NULL); 1305 PROBE_SET_ACTION(softc, PROBE_INVALID); 1306 1307 xpt_release_ccb(done_ccb); 1308 break; 1309 } 1310 case PROBE_REPORT_LUNS: 1311 { 1312 struct ccb_scsiio *csio; 1313 struct scsi_report_luns_data *lp; 1314 u_int nlun, maxlun; 1315 1316 csio = &done_ccb->csio; 1317 1318 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1319 nlun = scsi_4btoul(lp->length) / 8; 1320 maxlun = (csio->dxfer_len / 8) - 1; 1321 1322 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1323 if (cam_periph_error(done_ccb, 0, 1324 done_ccb->ccb_h.target_lun > 0 ? 1325 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) == 1326 ERESTART) { 1327 goto outr; 1328 } 1329 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1330 xpt_release_devq(done_ccb->ccb_h.path, 1, 1331 TRUE); 1332 } 1333 free(lp, M_CAMXPT); 1334 lp = NULL; 1335 } else if (nlun > maxlun) { 1336 /* 1337 * Reallocate and retry to cover all luns 1338 */ 1339 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1340 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1341 nlun)); 1342 free(lp, M_CAMXPT); 1343 path->target->rpl_size = (nlun << 3) + 8; 1344 xpt_release_ccb(done_ccb); 1345 xpt_schedule(periph, priority); 1346 goto out; 1347 } else if (nlun == 0) { 1348 /* 1349 * If there don't appear to be any luns, bail. 1350 */ 1351 free(lp, M_CAMXPT); 1352 lp = NULL; 1353 } else { 1354 lun_id_t lun; 1355 int idx; 1356 1357 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1358 ("Probe: %u lun(s) reported\n", nlun)); 1359 1360 CAM_GET_LUN(lp, 0, lun); 1361 /* 1362 * If the first lun is not lun 0, then either there 1363 * is no lun 0 in the list, or the list is unsorted. 1364 */ 1365 if (lun != 0) { 1366 for (idx = 0; idx < nlun; idx++) { 1367 CAM_GET_LUN(lp, idx, lun); 1368 if (lun == 0) { 1369 break; 1370 } 1371 } 1372 if (idx != nlun) { 1373 uint8_t tlun[8]; 1374 memcpy(tlun, 1375 lp->luns[0].lundata, 8); 1376 memcpy(lp->luns[0].lundata, 1377 lp->luns[idx].lundata, 8); 1378 memcpy(lp->luns[idx].lundata, 1379 tlun, 8); 1380 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1381 ("lun 0 in position %u\n", idx)); 1382 } 1383 } 1384 /* 1385 * If we have an old lun list, We can either 1386 * retest luns that appear to have been dropped, 1387 * or just nuke them. We'll opt for the latter. 1388 * This function will also install the new list 1389 * in the target structure. 1390 */ 1391 probe_purge_old(path, lp, softc->flags); 1392 lp = NULL; 1393 } 1394 /* The processing above should either exit via a `goto 1395 * out` or leave the `lp` variable `NULL` and (if 1396 * applicable) `free()` the storage to which it had 1397 * pointed. Assert here that is the case. 1398 */ 1399 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1400 inq_buf = &path->device->inq_data; 1401 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1402 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1403 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1404 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1405 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1406 else 1407 PROBE_SET_ACTION(softc, 1408 PROBE_SUPPORTED_VPD_LIST); 1409 xpt_release_ccb(done_ccb); 1410 xpt_schedule(periph, priority); 1411 goto out; 1412 } 1413 PROBE_SET_ACTION(softc, PROBE_INVALID); 1414 xpt_release_ccb(done_ccb); 1415 break; 1416 } 1417 case PROBE_MODE_SENSE: 1418 { 1419 struct ccb_scsiio *csio; 1420 struct scsi_mode_header_6 *mode_hdr; 1421 1422 csio = &done_ccb->csio; 1423 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1424 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1425 struct scsi_control_page *page; 1426 u_int8_t *offset; 1427 1428 offset = ((u_int8_t *)&mode_hdr[1]) 1429 + mode_hdr->blk_desc_len; 1430 page = (struct scsi_control_page *)offset; 1431 path->device->queue_flags = page->queue_flags; 1432 } else if (cam_periph_error(done_ccb, 0, 1433 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1434 goto outr; 1435 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1436 /* Don't wedge the queue */ 1437 xpt_release_devq(done_ccb->ccb_h.path, 1438 /*count*/1, /*run_queue*/TRUE); 1439 } 1440 xpt_release_ccb(done_ccb); 1441 free(mode_hdr, M_CAMXPT); 1442 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1443 xpt_schedule(periph, priority); 1444 goto out; 1445 } 1446 case PROBE_SUPPORTED_VPD_LIST: 1447 { 1448 struct ccb_scsiio *csio; 1449 struct scsi_vpd_supported_page_list *page_list; 1450 1451 csio = &done_ccb->csio; 1452 page_list = 1453 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1454 1455 if (path->device->supported_vpds != NULL) { 1456 free(path->device->supported_vpds, M_CAMXPT); 1457 path->device->supported_vpds = NULL; 1458 path->device->supported_vpds_len = 0; 1459 } 1460 1461 if (page_list == NULL) { 1462 /* 1463 * Don't process the command as it was never sent 1464 */ 1465 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1466 /* Got vpd list */ 1467 path->device->supported_vpds_len = page_list->length + 1468 SVPD_SUPPORTED_PAGES_HDR_LEN; 1469 path->device->supported_vpds = (uint8_t *)page_list; 1470 xpt_release_ccb(done_ccb); 1471 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1472 xpt_schedule(periph, priority); 1473 goto out; 1474 } else if (cam_periph_error(done_ccb, 0, 1475 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1476 goto outr; 1477 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1478 /* Don't wedge the queue */ 1479 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1480 /*run_queue*/TRUE); 1481 } 1482 1483 if (page_list) 1484 free(page_list, M_CAMXPT); 1485 /* No VPDs available, skip to device check. */ 1486 csio->data_ptr = NULL; 1487 goto probe_device_check; 1488 } 1489 case PROBE_DEVICE_ID: 1490 { 1491 struct scsi_vpd_device_id *devid; 1492 struct ccb_scsiio *csio; 1493 uint32_t length = 0; 1494 1495 csio = &done_ccb->csio; 1496 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1497 1498 /* Clean up from previous instance of this device */ 1499 if (path->device->device_id != NULL) { 1500 path->device->device_id_len = 0; 1501 free(path->device->device_id, M_CAMXPT); 1502 path->device->device_id = NULL; 1503 } 1504 1505 if (devid == NULL) { 1506 /* Don't process the command as it was never sent */ 1507 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1508 length = scsi_2btoul(devid->length); 1509 if (length != 0) { 1510 /* 1511 * NB: device_id_len is actual response 1512 * size, not buffer size. 1513 */ 1514 path->device->device_id_len = length + 1515 SVPD_DEVICE_ID_HDR_LEN; 1516 path->device->device_id = (uint8_t *)devid; 1517 } 1518 } else if (cam_periph_error(done_ccb, 0, 1519 SF_RETRY_UA) == ERESTART) { 1520 goto outr; 1521 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1522 /* Don't wedge the queue */ 1523 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1524 /*run_queue*/TRUE); 1525 } 1526 1527 /* Free the device id space if we don't use it */ 1528 if (devid && length == 0) 1529 free(devid, M_CAMXPT); 1530 xpt_release_ccb(done_ccb); 1531 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1532 xpt_schedule(periph, priority); 1533 goto out; 1534 } 1535 case PROBE_EXTENDED_INQUIRY: { 1536 struct scsi_vpd_extended_inquiry_data *ext_inq; 1537 struct ccb_scsiio *csio; 1538 int32_t length = 0; 1539 1540 csio = &done_ccb->csio; 1541 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1542 csio->data_ptr; 1543 if (path->device->ext_inq != NULL) { 1544 path->device->ext_inq_len = 0; 1545 free(path->device->ext_inq, M_CAMXPT); 1546 path->device->ext_inq = NULL; 1547 } 1548 1549 if (ext_inq == NULL) { 1550 /* Don't process the command as it was never sent */ 1551 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1552 length = scsi_2btoul(ext_inq->page_length) + 1553 __offsetof(struct scsi_vpd_extended_inquiry_data, 1554 flags1); 1555 length = min(length, sizeof(*ext_inq)); 1556 length -= csio->resid; 1557 if (length > 0) { 1558 path->device->ext_inq_len = length; 1559 path->device->ext_inq = (uint8_t *)ext_inq; 1560 } 1561 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1562 ERESTART) { 1563 goto outr; 1564 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1565 /* Don't wedge the queue */ 1566 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1567 /*run_queue*/TRUE); 1568 } 1569 1570 /* Free the device id space if we don't use it */ 1571 if (ext_inq && length <= 0) 1572 free(ext_inq, M_CAMXPT); 1573 xpt_release_ccb(done_ccb); 1574 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1575 xpt_schedule(periph, priority); 1576 goto out; 1577 } 1578 1579 probe_device_check: 1580 case PROBE_SERIAL_NUM: 1581 { 1582 struct ccb_scsiio *csio; 1583 struct scsi_vpd_unit_serial_number *serial_buf; 1584 u_int32_t priority; 1585 int changed; 1586 int have_serialnum; 1587 1588 changed = 1; 1589 have_serialnum = 0; 1590 csio = &done_ccb->csio; 1591 priority = done_ccb->ccb_h.pinfo.priority; 1592 serial_buf = 1593 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1594 1595 if (serial_buf == NULL) { 1596 /* 1597 * Don't process the command as it was never sent 1598 */ 1599 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1600 && (serial_buf->length > 0)) { 1601 have_serialnum = 1; 1602 path->device->serial_num = 1603 (u_int8_t *)malloc((serial_buf->length + 1), 1604 M_CAMXPT, M_NOWAIT); 1605 if (path->device->serial_num != NULL) { 1606 int start, slen; 1607 1608 start = strspn(serial_buf->serial_num, " "); 1609 slen = serial_buf->length - start; 1610 if (slen <= 0) { 1611 /* 1612 * SPC5r05 says that an all-space serial 1613 * number means no product serial number 1614 * is available 1615 */ 1616 slen = 0; 1617 } 1618 /* 1619 * In apparent violation of the spec, some 1620 * devices pad their serial numbers with 1621 * trailing spaces. Remove them. 1622 */ 1623 while (slen > 0 && 1624 serial_buf->serial_num[start + slen - 1] == ' ') 1625 slen--; 1626 memcpy(path->device->serial_num, 1627 &serial_buf->serial_num[start], slen); 1628 path->device->serial_num_len = slen; 1629 path->device->serial_num[slen] = '\0'; 1630 } 1631 } else if (cam_periph_error(done_ccb, 0, 1632 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1633 goto outr; 1634 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1635 /* Don't wedge the queue */ 1636 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1637 /*run_queue*/TRUE); 1638 } 1639 1640 /* 1641 * Let's see if we have seen this device before. 1642 */ 1643 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1644 MD5_CTX context; 1645 u_int8_t digest[16]; 1646 1647 MD5Init(&context); 1648 1649 MD5Update(&context, 1650 (unsigned char *)&path->device->inq_data, 1651 sizeof(struct scsi_inquiry_data)); 1652 1653 if (have_serialnum) 1654 MD5Update(&context, path->device->serial_num, 1655 path->device->serial_num_len); 1656 1657 MD5Final(digest, &context); 1658 if (bcmp(softc->digest, digest, 16) == 0) 1659 changed = 0; 1660 1661 /* 1662 * XXX Do we need to do a TUR in order to ensure 1663 * that the device really hasn't changed??? 1664 */ 1665 if ((changed != 0) 1666 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1667 xpt_async(AC_LOST_DEVICE, path, NULL); 1668 } 1669 if (serial_buf != NULL) 1670 free(serial_buf, M_CAMXPT); 1671 1672 if (changed != 0) { 1673 /* 1674 * Now that we have all the necessary 1675 * information to safely perform transfer 1676 * negotiations... Controllers don't perform 1677 * any negotiation or tagged queuing until 1678 * after the first XPT_SET_TRAN_SETTINGS ccb is 1679 * received. So, on a new device, just retrieve 1680 * the user settings, and set them as the current 1681 * settings to set the device up. 1682 */ 1683 proberequestdefaultnegotiation(periph); 1684 xpt_release_ccb(done_ccb); 1685 1686 /* 1687 * Perform a TUR to allow the controller to 1688 * perform any necessary transfer negotiation. 1689 */ 1690 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1691 xpt_schedule(periph, priority); 1692 goto out; 1693 } 1694 xpt_release_ccb(done_ccb); 1695 break; 1696 } 1697 case PROBE_TUR_FOR_NEGOTIATION: 1698 case PROBE_DV_EXIT: 1699 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1700 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1701 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1702 goto outr; 1703 } 1704 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1705 /* Don't wedge the queue */ 1706 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1707 /*run_queue*/TRUE); 1708 } 1709 /* 1710 * Do Domain Validation for lun 0 on devices that claim 1711 * to support Synchronous Transfer modes. 1712 */ 1713 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1714 && done_ccb->ccb_h.target_lun == 0 1715 && (path->device->inq_data.flags & SID_Sync) != 0 1716 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1717 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1718 ("Begin Domain Validation\n")); 1719 path->device->flags |= CAM_DEV_IN_DV; 1720 xpt_release_ccb(done_ccb); 1721 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1722 xpt_schedule(periph, priority); 1723 goto out; 1724 } 1725 if (softc->action == PROBE_DV_EXIT) { 1726 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1727 ("Leave Domain Validation\n")); 1728 } 1729 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1730 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1731 xpt_acquire_device(path->device); 1732 } 1733 path->device->flags &= 1734 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1735 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1736 /* Inform the XPT that a new device has been found */ 1737 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1738 xpt_action(done_ccb); 1739 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1740 done_ccb); 1741 } 1742 PROBE_SET_ACTION(softc, PROBE_DONE); 1743 xpt_release_ccb(done_ccb); 1744 break; 1745 case PROBE_INQUIRY_BASIC_DV1: 1746 case PROBE_INQUIRY_BASIC_DV2: 1747 { 1748 struct scsi_inquiry_data *nbuf; 1749 struct ccb_scsiio *csio; 1750 1751 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1752 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1753 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1754 goto outr; 1755 } 1756 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1757 /* Don't wedge the queue */ 1758 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1759 /*run_queue*/TRUE); 1760 } 1761 csio = &done_ccb->csio; 1762 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1763 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1764 xpt_print(path, 1765 "inquiry data fails comparison at DV%d step\n", 1766 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1767 if (proberequestbackoff(periph, path->device)) { 1768 path->device->flags &= ~CAM_DEV_IN_DV; 1769 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1770 } else { 1771 /* give up */ 1772 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1773 } 1774 free(nbuf, M_CAMXPT); 1775 xpt_release_ccb(done_ccb); 1776 xpt_schedule(periph, priority); 1777 goto out; 1778 } 1779 free(nbuf, M_CAMXPT); 1780 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1781 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1782 xpt_release_ccb(done_ccb); 1783 xpt_schedule(periph, priority); 1784 goto out; 1785 } 1786 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1787 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1788 ("Leave Domain Validation Successfully\n")); 1789 } 1790 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1791 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1792 xpt_acquire_device(path->device); 1793 } 1794 path->device->flags &= 1795 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1796 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1797 /* Inform the XPT that a new device has been found */ 1798 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1799 xpt_action(done_ccb); 1800 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1801 done_ccb); 1802 } 1803 PROBE_SET_ACTION(softc, PROBE_DONE); 1804 xpt_release_ccb(done_ccb); 1805 break; 1806 } 1807 default: 1808 panic("probedone: invalid action state 0x%x\n", softc->action); 1809 } 1810 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1811 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1812 done_ccb->ccb_h.status = CAM_REQ_CMP; 1813 xpt_done(done_ccb); 1814 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1815 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1816 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1817 cam_release_devq(path, 0, 0, 0, FALSE); 1818 cam_periph_release_locked(periph); 1819 cam_periph_invalidate(periph); 1820 cam_periph_release_locked(periph); 1821 } else { 1822 probeschedule(periph); 1823 goto out; 1824 } 1825 } 1826 1827 static void 1828 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1829 probe_flags flags) 1830 { 1831 struct cam_path *tp; 1832 struct scsi_report_luns_data *old; 1833 u_int idx1, idx2, nlun_old, nlun_new; 1834 lun_id_t this_lun; 1835 u_int8_t *ol, *nl; 1836 1837 if (path->target == NULL) { 1838 return; 1839 } 1840 mtx_lock(&path->target->luns_mtx); 1841 old = path->target->luns; 1842 path->target->luns = new; 1843 mtx_unlock(&path->target->luns_mtx); 1844 if (old == NULL) 1845 return; 1846 nlun_old = scsi_4btoul(old->length) / 8; 1847 nlun_new = scsi_4btoul(new->length) / 8; 1848 1849 /* 1850 * We are not going to assume sorted lists. Deal. 1851 */ 1852 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1853 ol = old->luns[idx1].lundata; 1854 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1855 nl = new->luns[idx2].lundata; 1856 if (memcmp(nl, ol, 8) == 0) { 1857 break; 1858 } 1859 } 1860 if (idx2 < nlun_new) { 1861 continue; 1862 } 1863 /* 1864 * An 'old' item not in the 'new' list. 1865 * Nuke it. Except that if it is lun 0, 1866 * that would be what the probe state 1867 * machine is currently working on, 1868 * so we won't do that. 1869 */ 1870 CAM_GET_LUN(old, idx1, this_lun); 1871 if (this_lun == 0) { 1872 continue; 1873 } 1874 1875 /* 1876 * We also cannot nuke it if it is 1877 * not in a lun format we understand 1878 * and replace the LUN with a "simple" LUN 1879 * if that is all the HBA supports. 1880 */ 1881 if (!(flags & PROBE_EXTLUN)) { 1882 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1883 continue; 1884 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1885 } 1886 1887 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1888 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1889 xpt_async(AC_LOST_DEVICE, tp, NULL); 1890 xpt_free_path(tp); 1891 } 1892 } 1893 free(old, M_CAMXPT); 1894 } 1895 1896 static void 1897 probecleanup(struct cam_periph *periph) 1898 { 1899 free(periph->softc, M_CAMXPT); 1900 } 1901 1902 static void 1903 scsi_find_quirk(struct cam_ed *device) 1904 { 1905 struct scsi_quirk_entry *quirk; 1906 caddr_t match; 1907 1908 match = cam_quirkmatch((caddr_t)&device->inq_data, 1909 (caddr_t)scsi_quirk_table, 1910 nitems(scsi_quirk_table), 1911 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1912 1913 if (match == NULL) 1914 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1915 1916 quirk = (struct scsi_quirk_entry *)match; 1917 device->quirk = quirk; 1918 device->mintags = quirk->mintags; 1919 device->maxtags = quirk->maxtags; 1920 } 1921 1922 typedef struct { 1923 union ccb *request_ccb; 1924 struct ccb_pathinq *cpi; 1925 int counter; 1926 int lunindex[0]; 1927 } scsi_scan_bus_info; 1928 1929 /* 1930 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1931 * As the scan progresses, scsi_scan_bus is used as the 1932 * callback on completion function. 1933 */ 1934 static void 1935 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1936 { 1937 struct mtx *mtx; 1938 1939 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1940 ("scsi_scan_bus\n")); 1941 switch (request_ccb->ccb_h.func_code) { 1942 case XPT_SCAN_BUS: 1943 case XPT_SCAN_TGT: 1944 { 1945 scsi_scan_bus_info *scan_info; 1946 union ccb *work_ccb, *reset_ccb; 1947 struct cam_path *path; 1948 u_int i; 1949 u_int low_target, max_target; 1950 u_int initiator_id; 1951 1952 /* Find out the characteristics of the bus */ 1953 work_ccb = xpt_alloc_ccb_nowait(); 1954 if (work_ccb == NULL) { 1955 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1956 xpt_done(request_ccb); 1957 return; 1958 } 1959 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1960 request_ccb->ccb_h.pinfo.priority); 1961 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1962 xpt_action(work_ccb); 1963 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1964 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1965 xpt_free_ccb(work_ccb); 1966 xpt_done(request_ccb); 1967 return; 1968 } 1969 1970 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1971 /* 1972 * Can't scan the bus on an adapter that 1973 * cannot perform the initiator role. 1974 */ 1975 request_ccb->ccb_h.status = CAM_REQ_CMP; 1976 xpt_free_ccb(work_ccb); 1977 xpt_done(request_ccb); 1978 return; 1979 } 1980 1981 /* We may need to reset bus first, if we haven't done it yet. */ 1982 if ((work_ccb->cpi.hba_inquiry & 1983 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1984 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1985 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1986 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1987 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1988 CAM_PRIORITY_NONE); 1989 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1990 xpt_action(reset_ccb); 1991 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1992 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1993 xpt_free_ccb(reset_ccb); 1994 xpt_free_ccb(work_ccb); 1995 xpt_done(request_ccb); 1996 return; 1997 } 1998 xpt_free_ccb(reset_ccb); 1999 } 2000 2001 /* Save some state for use while we probe for devices */ 2002 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 2003 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 2004 if (scan_info == NULL) { 2005 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2006 xpt_free_ccb(work_ccb); 2007 xpt_done(request_ccb); 2008 return; 2009 } 2010 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2011 ("SCAN start for %p\n", scan_info)); 2012 scan_info->request_ccb = request_ccb; 2013 scan_info->cpi = &work_ccb->cpi; 2014 2015 /* Cache on our stack so we can work asynchronously */ 2016 max_target = scan_info->cpi->max_target; 2017 low_target = 0; 2018 initiator_id = scan_info->cpi->initiator_id; 2019 2020 /* 2021 * We can scan all targets in parallel, or do it sequentially. 2022 */ 2023 2024 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2025 max_target = low_target = request_ccb->ccb_h.target_id; 2026 scan_info->counter = 0; 2027 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2028 max_target = 0; 2029 scan_info->counter = 0; 2030 } else { 2031 scan_info->counter = scan_info->cpi->max_target + 1; 2032 if (scan_info->cpi->initiator_id < scan_info->counter) { 2033 scan_info->counter--; 2034 } 2035 } 2036 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2037 mtx_unlock(mtx); 2038 2039 for (i = low_target; i <= max_target; i++) { 2040 cam_status status; 2041 if (i == initiator_id) 2042 continue; 2043 2044 status = xpt_create_path(&path, NULL, 2045 request_ccb->ccb_h.path_id, 2046 i, 0); 2047 if (status != CAM_REQ_CMP) { 2048 printf("scsi_scan_bus: xpt_create_path failed" 2049 " with status %#x, bus scan halted\n", 2050 status); 2051 free(scan_info, M_CAMXPT); 2052 request_ccb->ccb_h.status = status; 2053 xpt_free_ccb(work_ccb); 2054 xpt_done(request_ccb); 2055 break; 2056 } 2057 work_ccb = xpt_alloc_ccb_nowait(); 2058 if (work_ccb == NULL) { 2059 xpt_free_ccb((union ccb *)scan_info->cpi); 2060 free(scan_info, M_CAMXPT); 2061 xpt_free_path(path); 2062 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2063 xpt_done(request_ccb); 2064 break; 2065 } 2066 xpt_setup_ccb(&work_ccb->ccb_h, path, 2067 request_ccb->ccb_h.pinfo.priority); 2068 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2069 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2070 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2071 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2072 work_ccb->crcn.flags = request_ccb->crcn.flags; 2073 xpt_action(work_ccb); 2074 } 2075 2076 mtx_lock(mtx); 2077 break; 2078 } 2079 case XPT_SCAN_LUN: 2080 { 2081 cam_status status; 2082 struct cam_path *path, *oldpath; 2083 scsi_scan_bus_info *scan_info; 2084 struct cam_et *target; 2085 struct cam_ed *device, *nextdev; 2086 int next_target; 2087 path_id_t path_id; 2088 target_id_t target_id; 2089 lun_id_t lun_id; 2090 2091 oldpath = request_ccb->ccb_h.path; 2092 2093 status = cam_ccb_status(request_ccb); 2094 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2095 path_id = request_ccb->ccb_h.path_id; 2096 target_id = request_ccb->ccb_h.target_id; 2097 lun_id = request_ccb->ccb_h.target_lun; 2098 target = request_ccb->ccb_h.path->target; 2099 next_target = 1; 2100 2101 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2102 mtx_lock(mtx); 2103 mtx_lock(&target->luns_mtx); 2104 if (target->luns) { 2105 lun_id_t first; 2106 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2107 2108 /* 2109 * Make sure we skip over lun 0 if it's the first member 2110 * of the list as we've actually just finished probing 2111 * it. 2112 */ 2113 CAM_GET_LUN(target->luns, 0, first); 2114 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2115 scan_info->lunindex[target_id]++; 2116 } 2117 2118 /* 2119 * Skip any LUNs that the HBA can't deal with. 2120 */ 2121 while (scan_info->lunindex[target_id] < nluns) { 2122 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2123 CAM_GET_LUN(target->luns, 2124 scan_info->lunindex[target_id], 2125 lun_id); 2126 break; 2127 } 2128 2129 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2130 scan_info->lunindex[target_id])) { 2131 CAM_GET_SIMPLE_LUN(target->luns, 2132 scan_info->lunindex[target_id], 2133 lun_id); 2134 break; 2135 } 2136 2137 scan_info->lunindex[target_id]++; 2138 } 2139 2140 if (scan_info->lunindex[target_id] < nluns) { 2141 mtx_unlock(&target->luns_mtx); 2142 next_target = 0; 2143 CAM_DEBUG(request_ccb->ccb_h.path, 2144 CAM_DEBUG_PROBE, 2145 ("next lun to try at index %u is %jx\n", 2146 scan_info->lunindex[target_id], 2147 (uintmax_t)lun_id)); 2148 scan_info->lunindex[target_id]++; 2149 } else { 2150 mtx_unlock(&target->luns_mtx); 2151 /* We're done with scanning all luns. */ 2152 } 2153 } else { 2154 mtx_unlock(&target->luns_mtx); 2155 device = request_ccb->ccb_h.path->device; 2156 /* Continue sequential LUN scan if: */ 2157 /* -- we have more LUNs that need recheck */ 2158 mtx_lock(&target->bus->eb_mtx); 2159 nextdev = device; 2160 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2161 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2162 break; 2163 mtx_unlock(&target->bus->eb_mtx); 2164 if (nextdev != NULL) { 2165 next_target = 0; 2166 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2167 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2168 next_target = 1; 2169 /* -- this LUN is connected and its SCSI version 2170 * allows more LUNs. */ 2171 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2172 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2173 CAN_SRCH_HI_DENSE(device)) 2174 next_target = 0; 2175 /* -- this LUN is disconnected, its SCSI version 2176 * allows more LUNs and we guess they may be. */ 2177 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2178 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2179 CAN_SRCH_HI_SPARSE(device)) 2180 next_target = 0; 2181 } 2182 if (next_target == 0) { 2183 lun_id++; 2184 if (lun_id > scan_info->cpi->max_lun) 2185 next_target = 1; 2186 } 2187 } 2188 2189 /* 2190 * Check to see if we scan any further luns. 2191 */ 2192 if (next_target) { 2193 int done; 2194 2195 /* 2196 * Free the current request path- we're done with it. 2197 */ 2198 xpt_free_path(oldpath); 2199 hop_again: 2200 done = 0; 2201 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2202 done = 1; 2203 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2204 scan_info->counter++; 2205 if (scan_info->counter == 2206 scan_info->cpi->initiator_id) { 2207 scan_info->counter++; 2208 } 2209 if (scan_info->counter >= 2210 scan_info->cpi->max_target+1) { 2211 done = 1; 2212 } 2213 } else { 2214 scan_info->counter--; 2215 if (scan_info->counter == 0) { 2216 done = 1; 2217 } 2218 } 2219 if (done) { 2220 mtx_unlock(mtx); 2221 xpt_free_ccb(request_ccb); 2222 xpt_free_ccb((union ccb *)scan_info->cpi); 2223 request_ccb = scan_info->request_ccb; 2224 CAM_DEBUG(request_ccb->ccb_h.path, 2225 CAM_DEBUG_TRACE, 2226 ("SCAN done for %p\n", scan_info)); 2227 free(scan_info, M_CAMXPT); 2228 request_ccb->ccb_h.status = CAM_REQ_CMP; 2229 xpt_done(request_ccb); 2230 break; 2231 } 2232 2233 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2234 mtx_unlock(mtx); 2235 xpt_free_ccb(request_ccb); 2236 break; 2237 } 2238 status = xpt_create_path(&path, NULL, 2239 scan_info->request_ccb->ccb_h.path_id, 2240 scan_info->counter, 0); 2241 if (status != CAM_REQ_CMP) { 2242 mtx_unlock(mtx); 2243 printf("scsi_scan_bus: xpt_create_path failed" 2244 " with status %#x, bus scan halted\n", 2245 status); 2246 xpt_free_ccb(request_ccb); 2247 xpt_free_ccb((union ccb *)scan_info->cpi); 2248 request_ccb = scan_info->request_ccb; 2249 free(scan_info, M_CAMXPT); 2250 request_ccb->ccb_h.status = status; 2251 xpt_done(request_ccb); 2252 break; 2253 } 2254 xpt_setup_ccb(&request_ccb->ccb_h, path, 2255 request_ccb->ccb_h.pinfo.priority); 2256 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2257 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2258 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2259 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2260 request_ccb->crcn.flags = 2261 scan_info->request_ccb->crcn.flags; 2262 } else { 2263 status = xpt_create_path(&path, NULL, 2264 path_id, target_id, lun_id); 2265 /* 2266 * Free the old request path- we're done with it. We 2267 * do this *after* creating the new path so that 2268 * we don't remove a target that has our lun list 2269 * in the case that lun 0 is not present. 2270 */ 2271 xpt_free_path(oldpath); 2272 if (status != CAM_REQ_CMP) { 2273 printf("scsi_scan_bus: xpt_create_path failed " 2274 "with status %#x, halting LUN scan\n", 2275 status); 2276 goto hop_again; 2277 } 2278 xpt_setup_ccb(&request_ccb->ccb_h, path, 2279 request_ccb->ccb_h.pinfo.priority); 2280 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2281 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2282 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2283 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2284 request_ccb->crcn.flags = 2285 scan_info->request_ccb->crcn.flags; 2286 } 2287 mtx_unlock(mtx); 2288 xpt_action(request_ccb); 2289 break; 2290 } 2291 default: 2292 break; 2293 } 2294 } 2295 2296 static void 2297 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2298 cam_flags flags, union ccb *request_ccb) 2299 { 2300 struct ccb_pathinq cpi; 2301 cam_status status; 2302 struct cam_path *new_path; 2303 struct cam_periph *old_periph; 2304 int lock; 2305 2306 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2307 2308 memset(&cpi, 0, sizeof(cpi)); 2309 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2310 cpi.ccb_h.func_code = XPT_PATH_INQ; 2311 xpt_action((union ccb *)&cpi); 2312 2313 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2314 if (request_ccb != NULL) { 2315 request_ccb->ccb_h.status = cpi.ccb_h.status; 2316 xpt_done(request_ccb); 2317 } 2318 return; 2319 } 2320 2321 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2322 /* 2323 * Can't scan the bus on an adapter that 2324 * cannot perform the initiator role. 2325 */ 2326 if (request_ccb != NULL) { 2327 request_ccb->ccb_h.status = CAM_REQ_CMP; 2328 xpt_done(request_ccb); 2329 } 2330 return; 2331 } 2332 2333 if (request_ccb == NULL) { 2334 request_ccb = xpt_alloc_ccb_nowait(); 2335 if (request_ccb == NULL) { 2336 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2337 "can't continue\n"); 2338 return; 2339 } 2340 status = xpt_create_path(&new_path, NULL, 2341 path->bus->path_id, 2342 path->target->target_id, 2343 path->device->lun_id); 2344 if (status != CAM_REQ_CMP) { 2345 xpt_print(path, "scsi_scan_lun: can't create path, " 2346 "can't continue\n"); 2347 xpt_free_ccb(request_ccb); 2348 return; 2349 } 2350 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2351 request_ccb->ccb_h.cbfcnp = xptscandone; 2352 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2353 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2354 request_ccb->crcn.flags = flags; 2355 } 2356 2357 lock = (xpt_path_owned(path) == 0); 2358 if (lock) 2359 xpt_path_lock(path); 2360 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2361 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2362 probe_softc *softc; 2363 2364 softc = (probe_softc *)old_periph->softc; 2365 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2366 &request_ccb->ccb_h, periph_links.tqe); 2367 } else { 2368 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2369 xpt_done(request_ccb); 2370 } 2371 } else { 2372 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2373 probestart, "probe", 2374 CAM_PERIPH_BIO, 2375 request_ccb->ccb_h.path, NULL, 0, 2376 request_ccb); 2377 2378 if (status != CAM_REQ_CMP) { 2379 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2380 "returned an error, can't continue probe\n"); 2381 request_ccb->ccb_h.status = status; 2382 xpt_done(request_ccb); 2383 } 2384 } 2385 if (lock) 2386 xpt_path_unlock(path); 2387 } 2388 2389 static void 2390 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2391 { 2392 2393 xpt_free_path(done_ccb->ccb_h.path); 2394 xpt_free_ccb(done_ccb); 2395 } 2396 2397 static struct cam_ed * 2398 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2399 { 2400 struct scsi_quirk_entry *quirk; 2401 struct cam_ed *device; 2402 2403 device = xpt_alloc_device(bus, target, lun_id); 2404 if (device == NULL) 2405 return (NULL); 2406 2407 /* 2408 * Take the default quirk entry until we have inquiry 2409 * data and can determine a better quirk to use. 2410 */ 2411 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2412 device->quirk = (void *)quirk; 2413 device->mintags = quirk->mintags; 2414 device->maxtags = quirk->maxtags; 2415 bzero(&device->inq_data, sizeof(device->inq_data)); 2416 device->inq_flags = 0; 2417 device->queue_flags = 0; 2418 device->serial_num = NULL; 2419 device->serial_num_len = 0; 2420 device->device_id = NULL; 2421 device->device_id_len = 0; 2422 device->supported_vpds = NULL; 2423 device->supported_vpds_len = 0; 2424 return (device); 2425 } 2426 2427 static void 2428 scsi_devise_transport(struct cam_path *path) 2429 { 2430 struct ccb_pathinq cpi; 2431 struct ccb_trans_settings cts; 2432 struct scsi_inquiry_data *inq_buf; 2433 2434 /* Get transport information from the SIM */ 2435 memset(&cpi, 0, sizeof(cpi)); 2436 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2437 cpi.ccb_h.func_code = XPT_PATH_INQ; 2438 xpt_action((union ccb *)&cpi); 2439 2440 inq_buf = NULL; 2441 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2442 inq_buf = &path->device->inq_data; 2443 path->device->protocol = PROTO_SCSI; 2444 path->device->protocol_version = 2445 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2446 path->device->transport = cpi.transport; 2447 path->device->transport_version = cpi.transport_version; 2448 2449 /* 2450 * Any device not using SPI3 features should 2451 * be considered SPI2 or lower. 2452 */ 2453 if (inq_buf != NULL) { 2454 if (path->device->transport == XPORT_SPI 2455 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2456 && path->device->transport_version > 2) 2457 path->device->transport_version = 2; 2458 } else { 2459 struct cam_ed* otherdev; 2460 2461 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2462 otherdev != NULL; 2463 otherdev = TAILQ_NEXT(otherdev, links)) { 2464 if (otherdev != path->device) 2465 break; 2466 } 2467 2468 if (otherdev != NULL) { 2469 /* 2470 * Initially assume the same versioning as 2471 * prior luns for this target. 2472 */ 2473 path->device->protocol_version = 2474 otherdev->protocol_version; 2475 path->device->transport_version = 2476 otherdev->transport_version; 2477 } else { 2478 /* Until we know better, opt for safety */ 2479 path->device->protocol_version = 2; 2480 if (path->device->transport == XPORT_SPI) 2481 path->device->transport_version = 2; 2482 else 2483 path->device->transport_version = 0; 2484 } 2485 } 2486 2487 /* 2488 * XXX 2489 * For a device compliant with SPC-2 we should be able 2490 * to determine the transport version supported by 2491 * scrutinizing the version descriptors in the 2492 * inquiry buffer. 2493 */ 2494 2495 /* Tell the controller what we think */ 2496 memset(&cts, 0, sizeof(cts)); 2497 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2498 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2499 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2500 cts.transport = path->device->transport; 2501 cts.transport_version = path->device->transport_version; 2502 cts.protocol = path->device->protocol; 2503 cts.protocol_version = path->device->protocol_version; 2504 cts.proto_specific.valid = 0; 2505 cts.xport_specific.valid = 0; 2506 xpt_action((union ccb *)&cts); 2507 } 2508 2509 static void 2510 scsi_dev_advinfo(union ccb *start_ccb) 2511 { 2512 struct cam_ed *device; 2513 struct ccb_dev_advinfo *cdai; 2514 off_t amt; 2515 2516 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2517 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2518 device = start_ccb->ccb_h.path->device; 2519 cdai = &start_ccb->cdai; 2520 switch(cdai->buftype) { 2521 case CDAI_TYPE_SCSI_DEVID: 2522 if (cdai->flags & CDAI_FLAG_STORE) 2523 return; 2524 cdai->provsiz = device->device_id_len; 2525 if (device->device_id_len == 0) 2526 break; 2527 amt = device->device_id_len; 2528 if (cdai->provsiz > cdai->bufsiz) 2529 amt = cdai->bufsiz; 2530 memcpy(cdai->buf, device->device_id, amt); 2531 break; 2532 case CDAI_TYPE_SERIAL_NUM: 2533 if (cdai->flags & CDAI_FLAG_STORE) 2534 return; 2535 cdai->provsiz = device->serial_num_len; 2536 if (device->serial_num_len == 0) 2537 break; 2538 amt = device->serial_num_len; 2539 if (cdai->provsiz > cdai->bufsiz) 2540 amt = cdai->bufsiz; 2541 memcpy(cdai->buf, device->serial_num, amt); 2542 break; 2543 case CDAI_TYPE_PHYS_PATH: 2544 if (cdai->flags & CDAI_FLAG_STORE) { 2545 if (device->physpath != NULL) { 2546 free(device->physpath, M_CAMXPT); 2547 device->physpath = NULL; 2548 device->physpath_len = 0; 2549 } 2550 /* Clear existing buffer if zero length */ 2551 if (cdai->bufsiz == 0) 2552 break; 2553 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2554 if (device->physpath == NULL) { 2555 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2556 return; 2557 } 2558 device->physpath_len = cdai->bufsiz; 2559 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2560 } else { 2561 cdai->provsiz = device->physpath_len; 2562 if (device->physpath_len == 0) 2563 break; 2564 amt = device->physpath_len; 2565 if (cdai->provsiz > cdai->bufsiz) 2566 amt = cdai->bufsiz; 2567 memcpy(cdai->buf, device->physpath, amt); 2568 } 2569 break; 2570 case CDAI_TYPE_RCAPLONG: 2571 if (cdai->flags & CDAI_FLAG_STORE) { 2572 if (device->rcap_buf != NULL) { 2573 free(device->rcap_buf, M_CAMXPT); 2574 device->rcap_buf = NULL; 2575 } 2576 2577 device->rcap_len = cdai->bufsiz; 2578 /* Clear existing buffer if zero length */ 2579 if (cdai->bufsiz == 0) 2580 break; 2581 2582 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2583 M_NOWAIT); 2584 if (device->rcap_buf == NULL) { 2585 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2586 return; 2587 } 2588 2589 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2590 } else { 2591 cdai->provsiz = device->rcap_len; 2592 if (device->rcap_len == 0) 2593 break; 2594 amt = device->rcap_len; 2595 if (cdai->provsiz > cdai->bufsiz) 2596 amt = cdai->bufsiz; 2597 memcpy(cdai->buf, device->rcap_buf, amt); 2598 } 2599 break; 2600 case CDAI_TYPE_EXT_INQ: 2601 /* 2602 * We fetch extended inquiry data during probe, if 2603 * available. We don't allow changing it. 2604 */ 2605 if (cdai->flags & CDAI_FLAG_STORE) 2606 return; 2607 cdai->provsiz = device->ext_inq_len; 2608 if (device->ext_inq_len == 0) 2609 break; 2610 amt = device->ext_inq_len; 2611 if (cdai->provsiz > cdai->bufsiz) 2612 amt = cdai->bufsiz; 2613 memcpy(cdai->buf, device->ext_inq, amt); 2614 break; 2615 default: 2616 return; 2617 } 2618 start_ccb->ccb_h.status = CAM_REQ_CMP; 2619 2620 if (cdai->flags & CDAI_FLAG_STORE) { 2621 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2622 (void *)(uintptr_t)cdai->buftype); 2623 } 2624 } 2625 2626 static void 2627 scsi_action(union ccb *start_ccb) 2628 { 2629 2630 if (start_ccb->ccb_h.func_code != XPT_SCSI_IO) { 2631 KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0, 2632 ("%s: ccb %p, func_code %#x should not be allocated " 2633 "from UMA zone\n", 2634 __func__, start_ccb, start_ccb->ccb_h.func_code)); 2635 } 2636 2637 switch (start_ccb->ccb_h.func_code) { 2638 case XPT_SET_TRAN_SETTINGS: 2639 { 2640 scsi_set_transfer_settings(&start_ccb->cts, 2641 start_ccb->ccb_h.path, 2642 /*async_update*/FALSE); 2643 break; 2644 } 2645 case XPT_SCAN_BUS: 2646 case XPT_SCAN_TGT: 2647 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2648 break; 2649 case XPT_SCAN_LUN: 2650 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2651 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2652 start_ccb); 2653 break; 2654 case XPT_DEV_ADVINFO: 2655 { 2656 scsi_dev_advinfo(start_ccb); 2657 break; 2658 } 2659 default: 2660 xpt_action_default(start_ccb); 2661 break; 2662 } 2663 } 2664 2665 static void 2666 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2667 int async_update) 2668 { 2669 struct ccb_pathinq cpi; 2670 struct ccb_trans_settings cur_cts; 2671 struct ccb_trans_settings_scsi *scsi; 2672 struct ccb_trans_settings_scsi *cur_scsi; 2673 struct scsi_inquiry_data *inq_data; 2674 struct cam_ed *device; 2675 2676 if (path == NULL || (device = path->device) == NULL) { 2677 cts->ccb_h.status = CAM_PATH_INVALID; 2678 xpt_done((union ccb *)cts); 2679 return; 2680 } 2681 2682 if (cts->protocol == PROTO_UNKNOWN 2683 || cts->protocol == PROTO_UNSPECIFIED) { 2684 cts->protocol = device->protocol; 2685 cts->protocol_version = device->protocol_version; 2686 } 2687 2688 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2689 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2690 cts->protocol_version = device->protocol_version; 2691 2692 if (cts->protocol != device->protocol) { 2693 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2694 cts->protocol, device->protocol); 2695 cts->protocol = device->protocol; 2696 } 2697 2698 if (cts->protocol_version > device->protocol_version) { 2699 if (bootverbose) { 2700 xpt_print(path, "Down reving Protocol " 2701 "Version from %d to %d?\n", cts->protocol_version, 2702 device->protocol_version); 2703 } 2704 cts->protocol_version = device->protocol_version; 2705 } 2706 2707 if (cts->transport == XPORT_UNKNOWN 2708 || cts->transport == XPORT_UNSPECIFIED) { 2709 cts->transport = device->transport; 2710 cts->transport_version = device->transport_version; 2711 } 2712 2713 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2714 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2715 cts->transport_version = device->transport_version; 2716 2717 if (cts->transport != device->transport) { 2718 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2719 cts->transport, device->transport); 2720 cts->transport = device->transport; 2721 } 2722 2723 if (cts->transport_version > device->transport_version) { 2724 if (bootverbose) { 2725 xpt_print(path, "Down reving Transport " 2726 "Version from %d to %d?\n", cts->transport_version, 2727 device->transport_version); 2728 } 2729 cts->transport_version = device->transport_version; 2730 } 2731 2732 /* 2733 * Nothing more of interest to do unless 2734 * this is a device connected via the 2735 * SCSI protocol. 2736 */ 2737 if (cts->protocol != PROTO_SCSI) { 2738 if (async_update == FALSE) 2739 xpt_action_default((union ccb *)cts); 2740 return; 2741 } 2742 2743 inq_data = &device->inq_data; 2744 scsi = &cts->proto_specific.scsi; 2745 memset(&cpi, 0, sizeof(cpi)); 2746 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2747 cpi.ccb_h.func_code = XPT_PATH_INQ; 2748 xpt_action((union ccb *)&cpi); 2749 2750 /* SCSI specific sanity checking */ 2751 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2752 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2753 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2754 || (device->mintags == 0)) { 2755 /* 2756 * Can't tag on hardware that doesn't support tags, 2757 * doesn't have it enabled, or has broken tag support. 2758 */ 2759 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2760 } 2761 2762 if (async_update == FALSE) { 2763 /* 2764 * Perform sanity checking against what the 2765 * controller and device can do. 2766 */ 2767 memset(&cur_cts, 0, sizeof(cur_cts)); 2768 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2769 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2770 cur_cts.type = cts->type; 2771 xpt_action((union ccb *)&cur_cts); 2772 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2773 return; 2774 } 2775 cur_scsi = &cur_cts.proto_specific.scsi; 2776 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2777 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2778 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2779 } 2780 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2781 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2782 } 2783 2784 /* SPI specific sanity checking */ 2785 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2786 u_int spi3caps; 2787 struct ccb_trans_settings_spi *spi; 2788 struct ccb_trans_settings_spi *cur_spi; 2789 2790 spi = &cts->xport_specific.spi; 2791 2792 cur_spi = &cur_cts.xport_specific.spi; 2793 2794 /* Fill in any gaps in what the user gave us */ 2795 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2796 spi->sync_period = cur_spi->sync_period; 2797 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2798 spi->sync_period = 0; 2799 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2800 spi->sync_offset = cur_spi->sync_offset; 2801 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2802 spi->sync_offset = 0; 2803 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2804 spi->ppr_options = cur_spi->ppr_options; 2805 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2806 spi->ppr_options = 0; 2807 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2808 spi->bus_width = cur_spi->bus_width; 2809 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2810 spi->bus_width = 0; 2811 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2812 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2813 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2814 } 2815 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2816 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2817 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2818 && (inq_data->flags & SID_Sync) == 0 2819 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2820 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2821 /* Force async */ 2822 spi->sync_period = 0; 2823 spi->sync_offset = 0; 2824 } 2825 2826 switch (spi->bus_width) { 2827 case MSG_EXT_WDTR_BUS_32_BIT: 2828 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2829 || (inq_data->flags & SID_WBus32) != 0 2830 || cts->type == CTS_TYPE_USER_SETTINGS) 2831 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2832 break; 2833 /* Fall Through to 16-bit */ 2834 case MSG_EXT_WDTR_BUS_16_BIT: 2835 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2836 || (inq_data->flags & SID_WBus16) != 0 2837 || cts->type == CTS_TYPE_USER_SETTINGS) 2838 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2839 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2840 break; 2841 } 2842 /* Fall Through to 8-bit */ 2843 default: /* New bus width?? */ 2844 case MSG_EXT_WDTR_BUS_8_BIT: 2845 /* All targets can do this */ 2846 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2847 break; 2848 } 2849 2850 spi3caps = cpi.xport_specific.spi.ppr_options; 2851 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2852 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2853 spi3caps &= inq_data->spi3data; 2854 2855 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2856 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2857 2858 if ((spi3caps & SID_SPI_IUS) == 0) 2859 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2860 2861 if ((spi3caps & SID_SPI_QAS) == 0) 2862 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2863 2864 /* No SPI Transfer settings are allowed unless we are wide */ 2865 if (spi->bus_width == 0) 2866 spi->ppr_options = 0; 2867 2868 if ((spi->valid & CTS_SPI_VALID_DISC) 2869 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2870 /* 2871 * Can't tag queue without disconnection. 2872 */ 2873 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2874 scsi->valid |= CTS_SCSI_VALID_TQ; 2875 } 2876 2877 /* 2878 * If we are currently performing tagged transactions to 2879 * this device and want to change its negotiation parameters, 2880 * go non-tagged for a bit to give the controller a chance to 2881 * negotiate unhampered by tag messages. 2882 */ 2883 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2884 && (device->inq_flags & SID_CmdQue) != 0 2885 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2886 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2887 CTS_SPI_VALID_SYNC_OFFSET| 2888 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2889 scsi_toggle_tags(path); 2890 } 2891 2892 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2893 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2894 int device_tagenb; 2895 2896 /* 2897 * If we are transitioning from tags to no-tags or 2898 * vice-versa, we need to carefully freeze and restart 2899 * the queue so that we don't overlap tagged and non-tagged 2900 * commands. We also temporarily stop tags if there is 2901 * a change in transfer negotiation settings to allow 2902 * "tag-less" negotiation. 2903 */ 2904 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2905 || (device->inq_flags & SID_CmdQue) != 0) 2906 device_tagenb = TRUE; 2907 else 2908 device_tagenb = FALSE; 2909 2910 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2911 && device_tagenb == FALSE) 2912 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2913 && device_tagenb == TRUE)) { 2914 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2915 /* 2916 * Delay change to use tags until after a 2917 * few commands have gone to this device so 2918 * the controller has time to perform transfer 2919 * negotiations without tagged messages getting 2920 * in the way. 2921 */ 2922 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2923 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2924 } else { 2925 xpt_stop_tags(path); 2926 } 2927 } 2928 } 2929 if (async_update == FALSE) 2930 xpt_action_default((union ccb *)cts); 2931 } 2932 2933 static void 2934 scsi_toggle_tags(struct cam_path *path) 2935 { 2936 struct cam_ed *dev; 2937 2938 /* 2939 * Give controllers a chance to renegotiate 2940 * before starting tag operations. We 2941 * "toggle" tagged queuing off then on 2942 * which causes the tag enable command delay 2943 * counter to come into effect. 2944 */ 2945 dev = path->device; 2946 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2947 || ((dev->inq_flags & SID_CmdQue) != 0 2948 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2949 struct ccb_trans_settings cts; 2950 2951 memset(&cts, 0, sizeof(cts)); 2952 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2953 cts.protocol = PROTO_SCSI; 2954 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2955 cts.transport = XPORT_UNSPECIFIED; 2956 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2957 cts.proto_specific.scsi.flags = 0; 2958 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2959 scsi_set_transfer_settings(&cts, path, 2960 /*async_update*/TRUE); 2961 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2962 scsi_set_transfer_settings(&cts, path, 2963 /*async_update*/TRUE); 2964 } 2965 } 2966 2967 /* 2968 * Handle any per-device event notifications that require action by the XPT. 2969 */ 2970 static void 2971 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2972 struct cam_ed *device, void *async_arg) 2973 { 2974 cam_status status; 2975 struct cam_path newpath; 2976 2977 /* 2978 * We only need to handle events for real devices. 2979 */ 2980 if (target->target_id == CAM_TARGET_WILDCARD 2981 || device->lun_id == CAM_LUN_WILDCARD) 2982 return; 2983 2984 /* 2985 * We need our own path with wildcards expanded to 2986 * handle certain types of events. 2987 */ 2988 if ((async_code == AC_SENT_BDR) 2989 || (async_code == AC_BUS_RESET) 2990 || (async_code == AC_INQ_CHANGED)) 2991 status = xpt_compile_path(&newpath, NULL, 2992 bus->path_id, 2993 target->target_id, 2994 device->lun_id); 2995 else 2996 status = CAM_REQ_CMP_ERR; 2997 2998 if (status == CAM_REQ_CMP) { 2999 /* 3000 * Allow transfer negotiation to occur in a 3001 * tag free environment and after settle delay. 3002 */ 3003 if (async_code == AC_SENT_BDR 3004 || async_code == AC_BUS_RESET) { 3005 cam_freeze_devq(&newpath); 3006 cam_release_devq(&newpath, 3007 RELSIM_RELEASE_AFTER_TIMEOUT, 3008 /*reduction*/0, 3009 /*timeout*/scsi_delay, 3010 /*getcount_only*/0); 3011 scsi_toggle_tags(&newpath); 3012 } 3013 3014 if (async_code == AC_INQ_CHANGED) { 3015 /* 3016 * We've sent a start unit command, or 3017 * something similar to a device that 3018 * may have caused its inquiry data to 3019 * change. So we re-scan the device to 3020 * refresh the inquiry data for it. 3021 */ 3022 scsi_scan_lun(newpath.periph, &newpath, 3023 CAM_EXPECT_INQ_CHANGE, NULL); 3024 } 3025 xpt_release_path(&newpath); 3026 } else if (async_code == AC_LOST_DEVICE && 3027 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3028 device->flags |= CAM_DEV_UNCONFIGURED; 3029 xpt_release_device(device); 3030 } else if (async_code == AC_TRANSFER_NEG) { 3031 struct ccb_trans_settings *settings; 3032 struct cam_path path; 3033 3034 settings = (struct ccb_trans_settings *)async_arg; 3035 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3036 device->lun_id); 3037 scsi_set_transfer_settings(settings, &path, 3038 /*async_update*/TRUE); 3039 xpt_release_path(&path); 3040 } 3041 } 3042 3043 static void 3044 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3045 { 3046 struct ccb_pathinq cpi; 3047 struct cam_path *path = periph->path; 3048 3049 cam_periph_assert(periph, MA_OWNED); 3050 3051 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3052 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3053 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3054 xpt_action((union ccb*)cts); 3055 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3056 return; 3057 3058 /* Ask the SIM for its base transfer speed */ 3059 memset(&cpi, 0, sizeof(cpi)); 3060 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3061 cpi.ccb_h.func_code = XPT_PATH_INQ; 3062 xpt_action((union ccb *)&cpi); 3063 3064 /* Report connection speed */ 3065 *speed = cpi.base_transfer_speed; 3066 *freq = 0; 3067 3068 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3069 struct ccb_trans_settings_spi *spi = 3070 &cts->xport_specific.spi; 3071 3072 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3073 && spi->sync_offset != 0) { 3074 *freq = scsi_calc_syncsrate(spi->sync_period); 3075 *speed = *freq; 3076 } 3077 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3078 *speed *= (0x01 << spi->bus_width); 3079 } 3080 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3081 struct ccb_trans_settings_fc *fc = 3082 &cts->xport_specific.fc; 3083 3084 if (fc->valid & CTS_FC_VALID_SPEED) 3085 *speed = fc->bitrate; 3086 } 3087 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3088 struct ccb_trans_settings_sas *sas = 3089 &cts->xport_specific.sas; 3090 3091 if (sas->valid & CTS_SAS_VALID_SPEED) 3092 *speed = sas->bitrate; 3093 } 3094 } 3095 3096 static void 3097 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3098 { 3099 struct ccb_trans_settings cts; 3100 u_int speed, freq, mb; 3101 3102 memset(&cts, 0, sizeof(cts)); 3103 _scsi_announce_periph(periph, &speed, &freq, &cts); 3104 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3105 return; 3106 3107 mb = speed / 1000; 3108 if (mb > 0) 3109 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3110 periph->periph_name, periph->unit_number, 3111 mb, speed % 1000); 3112 else 3113 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3114 periph->unit_number, speed); 3115 /* Report additional information about SPI connections */ 3116 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3117 struct ccb_trans_settings_spi *spi; 3118 3119 spi = &cts.xport_specific.spi; 3120 if (freq != 0) { 3121 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3122 freq % 1000, 3123 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3124 ? " DT" : "", 3125 spi->sync_offset); 3126 } 3127 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3128 && spi->bus_width > 0) { 3129 if (freq != 0) { 3130 sbuf_printf(sb, ", "); 3131 } else { 3132 sbuf_printf(sb, " ("); 3133 } 3134 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3135 } else if (freq != 0) { 3136 sbuf_printf(sb, ")"); 3137 } 3138 } 3139 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3140 struct ccb_trans_settings_fc *fc; 3141 3142 fc = &cts.xport_specific.fc; 3143 if (fc->valid & CTS_FC_VALID_WWNN) 3144 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3145 if (fc->valid & CTS_FC_VALID_WWPN) 3146 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3147 if (fc->valid & CTS_FC_VALID_PORT) 3148 sbuf_printf(sb, " PortID 0x%x", fc->port); 3149 } 3150 sbuf_printf(sb, "\n"); 3151 } 3152 3153 static void 3154 scsi_announce_periph(struct cam_periph *periph) 3155 { 3156 struct ccb_trans_settings cts; 3157 u_int speed, freq, mb; 3158 3159 memset(&cts, 0, sizeof(cts)); 3160 _scsi_announce_periph(periph, &speed, &freq, &cts); 3161 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3162 return; 3163 3164 mb = speed / 1000; 3165 if (mb > 0) 3166 printf("%s%d: %d.%03dMB/s transfers", 3167 periph->periph_name, periph->unit_number, 3168 mb, speed % 1000); 3169 else 3170 printf("%s%d: %dKB/s transfers", periph->periph_name, 3171 periph->unit_number, speed); 3172 /* Report additional information about SPI connections */ 3173 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3174 struct ccb_trans_settings_spi *spi; 3175 3176 spi = &cts.xport_specific.spi; 3177 if (freq != 0) { 3178 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3179 freq % 1000, 3180 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3181 ? " DT" : "", 3182 spi->sync_offset); 3183 } 3184 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3185 && spi->bus_width > 0) { 3186 if (freq != 0) { 3187 printf(", "); 3188 } else { 3189 printf(" ("); 3190 } 3191 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3192 } else if (freq != 0) { 3193 printf(")"); 3194 } 3195 } 3196 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3197 struct ccb_trans_settings_fc *fc; 3198 3199 fc = &cts.xport_specific.fc; 3200 if (fc->valid & CTS_FC_VALID_WWNN) 3201 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3202 if (fc->valid & CTS_FC_VALID_WWPN) 3203 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3204 if (fc->valid & CTS_FC_VALID_PORT) 3205 printf(" PortID 0x%x", fc->port); 3206 } 3207 printf("\n"); 3208 } 3209 3210 static void 3211 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3212 { 3213 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3214 } 3215 3216 static void 3217 scsi_proto_announce(struct cam_ed *device) 3218 { 3219 scsi_print_inquiry(&device->inq_data); 3220 } 3221 3222 static void 3223 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3224 { 3225 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3226 } 3227 3228 static void 3229 scsi_proto_denounce(struct cam_ed *device) 3230 { 3231 scsi_print_inquiry_short(&device->inq_data); 3232 } 3233 3234 static void 3235 scsi_proto_debug_out(union ccb *ccb) 3236 { 3237 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3238 struct cam_ed *device; 3239 3240 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3241 return; 3242 3243 device = ccb->ccb_h.path->device; 3244 CAM_DEBUG(ccb->ccb_h.path, 3245 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3246 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3247 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3248 }
Cache object: 0ed30fb70286f5880a3aa22d13518ae3
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