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