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, 84 CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NEEDGIANT, 0, 0, 85 sysctl_cam_search_luns, "I", 86 "allow search above LUN 7 for SCSI3 and greater devices"); 87 88 #define CAM_SCSI2_MAXLUN 8 89 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 90 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 91 RPL_LUNDATA_ATYP_PERIPH) || \ 92 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 93 RPL_LUNDATA_ATYP_FLAT)) 94 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 95 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 96 RPL_LUNDATA_ATYP_PERIPH) { \ 97 (lval) = (lp)->luns[(i)].lundata[1]; \ 98 } else { \ 99 (lval) = (lp)->luns[(i)].lundata[0]; \ 100 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 101 (lval) <<= 8; \ 102 (lval) |= (lp)->luns[(i)].lundata[1]; \ 103 } 104 #define CAM_GET_LUN(lp, i, lval) \ 105 (lval) = scsi_8btou64((lp)->luns[(i)].lundata); \ 106 (lval) = CAM_EXTLUN_BYTE_SWIZZLE(lval); 107 108 /* 109 * If we're not quirked to search <= the first 8 luns 110 * and we are either quirked to search above lun 8, 111 * or we're > SCSI-2 and we've enabled hilun searching, 112 * or we're > SCSI-2 and the last lun was a success, 113 * we can look for luns above lun 8. 114 */ 115 #define CAN_SRCH_HI_SPARSE(dv) \ 116 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 117 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 118 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 119 120 #define CAN_SRCH_HI_DENSE(dv) \ 121 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 122 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 123 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 124 125 static periph_init_t probe_periph_init; 126 127 static struct periph_driver probe_driver = 128 { 129 probe_periph_init, "probe", 130 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 131 CAM_PERIPH_DRV_EARLY 132 }; 133 134 PERIPHDRIVER_DECLARE(probe, probe_driver); 135 136 typedef enum { 137 PROBE_TUR, 138 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 139 PROBE_FULL_INQUIRY, 140 PROBE_REPORT_LUNS, 141 PROBE_MODE_SENSE, 142 PROBE_SUPPORTED_VPD_LIST, 143 PROBE_DEVICE_ID, 144 PROBE_EXTENDED_INQUIRY, 145 PROBE_SERIAL_NUM, 146 PROBE_TUR_FOR_NEGOTIATION, 147 PROBE_INQUIRY_BASIC_DV1, 148 PROBE_INQUIRY_BASIC_DV2, 149 PROBE_DV_EXIT, 150 PROBE_DONE, 151 PROBE_INVALID 152 } probe_action; 153 154 static char *probe_action_text[] = { 155 "PROBE_TUR", 156 "PROBE_INQUIRY", 157 "PROBE_FULL_INQUIRY", 158 "PROBE_REPORT_LUNS", 159 "PROBE_MODE_SENSE", 160 "PROBE_SUPPORTED_VPD_LIST", 161 "PROBE_DEVICE_ID", 162 "PROBE_EXTENDED_INQUIRY", 163 "PROBE_SERIAL_NUM", 164 "PROBE_TUR_FOR_NEGOTIATION", 165 "PROBE_INQUIRY_BASIC_DV1", 166 "PROBE_INQUIRY_BASIC_DV2", 167 "PROBE_DV_EXIT", 168 "PROBE_DONE", 169 "PROBE_INVALID" 170 }; 171 172 #define PROBE_SET_ACTION(softc, newaction) \ 173 do { \ 174 char **text; \ 175 text = probe_action_text; \ 176 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE, \ 177 ("Probe %s to %s\n", text[(softc)->action], \ 178 text[(newaction)])); \ 179 (softc)->action = (newaction); \ 180 } while(0) 181 182 typedef enum { 183 PROBE_INQUIRY_CKSUM = 0x01, 184 PROBE_SERIAL_CKSUM = 0x02, 185 PROBE_NO_ANNOUNCE = 0x04, 186 PROBE_EXTLUN = 0x08 187 } probe_flags; 188 189 typedef struct { 190 TAILQ_HEAD(, ccb_hdr) request_ccbs; 191 probe_action action; 192 union ccb saved_ccb; 193 probe_flags flags; 194 MD5_CTX context; 195 u_int8_t digest[16]; 196 struct cam_periph *periph; 197 } probe_softc; 198 199 static const char quantum[] = "QUANTUM"; 200 static const char sony[] = "SONY"; 201 static const char west_digital[] = "WDIGTL"; 202 static const char samsung[] = "SAMSUNG"; 203 static const char seagate[] = "SEAGATE"; 204 static const char microp[] = "MICROP"; 205 206 static struct scsi_quirk_entry scsi_quirk_table[] = 207 { 208 { 209 /* Reports QUEUE FULL for temporary resource shortages */ 210 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 211 /*quirks*/0, /*mintags*/24, /*maxtags*/32 212 }, 213 { 214 /* Reports QUEUE FULL for temporary resource shortages */ 215 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 216 /*quirks*/0, /*mintags*/24, /*maxtags*/32 217 }, 218 { 219 /* Reports QUEUE FULL for temporary resource shortages */ 220 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 221 /*quirks*/0, /*mintags*/24, /*maxtags*/32 222 }, 223 { 224 /* Broken tagged queuing drive */ 225 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 226 /*quirks*/0, /*mintags*/0, /*maxtags*/0 227 }, 228 { 229 /* Broken tagged queuing drive */ 230 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 231 /*quirks*/0, /*mintags*/0, /*maxtags*/0 232 }, 233 { 234 /* Broken tagged queuing drive */ 235 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 236 /*quirks*/0, /*mintags*/0, /*maxtags*/0 237 }, 238 { 239 /* 240 * Unfortunately, the Quantum Atlas III has the same 241 * problem as the Atlas II drives above. 242 * Reported by: "Johan Granlund" <johan@granlund.nu> 243 * 244 * For future reference, the drive with the problem was: 245 * QUANTUM QM39100TD-SW N1B0 246 * 247 * It's possible that Quantum will fix the problem in later 248 * firmware revisions. If that happens, the quirk entry 249 * will need to be made specific to the firmware revisions 250 * with the problem. 251 * 252 */ 253 /* Reports QUEUE FULL for temporary resource shortages */ 254 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 255 /*quirks*/0, /*mintags*/24, /*maxtags*/32 256 }, 257 { 258 /* 259 * 18 Gig Atlas III, same problem as the 9G version. 260 * Reported by: Andre Albsmeier 261 * <andre.albsmeier@mchp.siemens.de> 262 * 263 * For future reference, the drive with the problem was: 264 * QUANTUM QM318000TD-S N491 265 */ 266 /* Reports QUEUE FULL for temporary resource shortages */ 267 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 268 /*quirks*/0, /*mintags*/24, /*maxtags*/32 269 }, 270 { 271 /* 272 * Broken tagged queuing drive 273 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 274 * and: Martin Renters <martin@tdc.on.ca> 275 */ 276 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 277 /*quirks*/0, /*mintags*/0, /*maxtags*/0 278 }, 279 /* 280 * The Seagate Medalist Pro drives have very poor write 281 * performance with anything more than 2 tags. 282 * 283 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 284 * Drive: <SEAGATE ST36530N 1444> 285 * 286 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 287 * Drive: <SEAGATE ST34520W 1281> 288 * 289 * No one has actually reported that the 9G version 290 * (ST39140*) of the Medalist Pro has the same problem, but 291 * we're assuming that it does because the 4G and 6.5G 292 * versions of the drive are broken. 293 */ 294 { 295 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 296 /*quirks*/0, /*mintags*/2, /*maxtags*/2 297 }, 298 { 299 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 300 /*quirks*/0, /*mintags*/2, /*maxtags*/2 301 }, 302 { 303 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 304 /*quirks*/0, /*mintags*/2, /*maxtags*/2 305 }, 306 { 307 /* 308 * Experiences command timeouts under load with a 309 * tag count higher than 55. 310 */ 311 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 312 /*quirks*/0, /*mintags*/2, /*maxtags*/55 313 }, 314 { 315 /* 316 * Slow when tagged queueing is enabled. Write performance 317 * steadily drops off with more and more concurrent 318 * transactions. Best sequential write performance with 319 * tagged queueing turned off and write caching turned on. 320 * 321 * PR: kern/10398 322 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 323 * Drive: DCAS-34330 w/ "S65A" firmware. 324 * 325 * The drive with the problem had the "S65A" firmware 326 * revision, and has also been reported (by Stephen J. 327 * Roznowski <sjr@home.net>) for a drive with the "S61A" 328 * firmware revision. 329 * 330 * Although no one has reported problems with the 2 gig 331 * version of the DCAS drive, the assumption is that it 332 * has the same problems as the 4 gig version. Therefore 333 * this quirk entries disables tagged queueing for all 334 * DCAS drives. 335 */ 336 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 337 /*quirks*/0, /*mintags*/0, /*maxtags*/0 338 }, 339 { 340 /* Broken tagged queuing drive */ 341 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 342 /*quirks*/0, /*mintags*/0, /*maxtags*/0 343 }, 344 { 345 /* Broken tagged queuing drive */ 346 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 347 /*quirks*/0, /*mintags*/0, /*maxtags*/0 348 }, 349 { 350 /* This does not support other than LUN 0 */ 351 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 352 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 353 }, 354 { 355 /* 356 * Broken tagged queuing drive. 357 * Submitted by: 358 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 359 * in PR kern/9535 360 */ 361 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 362 /*quirks*/0, /*mintags*/0, /*maxtags*/0 363 }, 364 { 365 /* 366 * Slow when tagged queueing is enabled. (1.5MB/sec versus 367 * 8MB/sec.) 368 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 369 * Best performance with these drives is achieved with 370 * tagged queueing turned off, and write caching turned on. 371 */ 372 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 373 /*quirks*/0, /*mintags*/0, /*maxtags*/0 374 }, 375 { 376 /* 377 * Slow when tagged queueing is enabled. (1.5MB/sec versus 378 * 8MB/sec.) 379 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 380 * Best performance with these drives is achieved with 381 * tagged queueing turned off, and write caching turned on. 382 */ 383 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 384 /*quirks*/0, /*mintags*/0, /*maxtags*/0 385 }, 386 { 387 /* 388 * Doesn't handle queue full condition correctly, 389 * so we need to limit maxtags to what the device 390 * can handle instead of determining this automatically. 391 */ 392 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 393 /*quirks*/0, /*mintags*/2, /*maxtags*/32 394 }, 395 { 396 /* Really only one LUN */ 397 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 398 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 399 }, 400 { 401 /* I can't believe we need a quirk for DPT volumes. */ 402 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 403 CAM_QUIRK_NOLUNS, 404 /*mintags*/0, /*maxtags*/255 405 }, 406 { 407 /* 408 * Many Sony CDROM drives don't like multi-LUN probing. 409 */ 410 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 411 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 412 }, 413 { 414 /* 415 * This drive doesn't like multiple LUN probing. 416 * Submitted by: Parag Patel <parag@cgt.com> 417 */ 418 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 419 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 420 }, 421 { 422 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 423 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 424 }, 425 { 426 /* 427 * The 8200 doesn't like multi-lun probing, and probably 428 * don't like serial number requests either. 429 */ 430 { 431 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 432 "EXB-8200*", "*" 433 }, 434 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 435 }, 436 { 437 /* 438 * Let's try the same as above, but for a drive that says 439 * it's an IPL-6860 but is actually an EXB 8200. 440 */ 441 { 442 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 443 "IPL-6860*", "*" 444 }, 445 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 446 }, 447 { 448 /* 449 * These Hitachi drives don't like multi-lun probing. 450 * The PR submitter has a DK319H, but says that the Linux 451 * kernel has a similar work-around for the DK312 and DK314, 452 * so all DK31* drives are quirked here. 453 * PR: misc/18793 454 * Submitted by: Paul Haddad <paul@pth.com> 455 */ 456 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 457 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 458 }, 459 { 460 /* 461 * The Hitachi CJ series with J8A8 firmware apparently has 462 * problems with tagged commands. 463 * PR: 23536 464 * Reported by: amagai@nue.org 465 */ 466 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 467 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 468 }, 469 { 470 /* 471 * These are the large storage arrays. 472 * Submitted by: William Carrel <william.carrel@infospace.com> 473 */ 474 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 475 CAM_QUIRK_HILUNS, 2, 1024 476 }, 477 { 478 /* 479 * This old revision of the TDC3600 is also SCSI-1, and 480 * hangs upon serial number probing. 481 */ 482 { 483 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 484 " TDC 3600", "U07:" 485 }, 486 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 487 }, 488 { 489 /* 490 * Would repond to all LUNs if asked for. 491 */ 492 { 493 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 494 "CP150", "*" 495 }, 496 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 497 }, 498 { 499 /* 500 * Would repond to all LUNs if asked for. 501 */ 502 { 503 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 504 "96X2*", "*" 505 }, 506 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 507 }, 508 { 509 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 510 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 511 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 512 }, 513 { 514 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 515 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 516 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 517 }, 518 { 519 /* TeraSolutions special settings for TRC-22 RAID */ 520 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 521 /*quirks*/0, /*mintags*/55, /*maxtags*/255 522 }, 523 { 524 /* Veritas Storage Appliance */ 525 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 526 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 527 }, 528 { 529 /* 530 * Would respond to all LUNs. Device type and removable 531 * flag are jumper-selectable. 532 */ 533 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 534 "Tahiti 1", "*" 535 }, 536 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 537 }, 538 { 539 /* EasyRAID E5A aka. areca ARC-6010 */ 540 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 541 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 542 }, 543 { 544 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 545 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 546 }, 547 { 548 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 549 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 550 }, 551 { 552 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 553 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 554 }, 555 { 556 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 557 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 558 }, 559 { 560 /* Default tagged queuing parameters for all devices */ 561 { 562 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 563 /*vendor*/"*", /*product*/"*", /*revision*/"*" 564 }, 565 /*quirks*/0, /*mintags*/2, /*maxtags*/255 566 }, 567 }; 568 569 static cam_status proberegister(struct cam_periph *periph, 570 void *arg); 571 static void probeschedule(struct cam_periph *probe_periph); 572 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 573 static void proberequestdefaultnegotiation(struct cam_periph *periph); 574 static int proberequestbackoff(struct cam_periph *periph, 575 struct cam_ed *device); 576 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 577 static void probe_purge_old(struct cam_path *path, 578 struct scsi_report_luns_data *new, 579 probe_flags flags); 580 static void probecleanup(struct cam_periph *periph); 581 static void scsi_find_quirk(struct cam_ed *device); 582 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 583 static void scsi_scan_lun(struct cam_periph *periph, 584 struct cam_path *path, cam_flags flags, 585 union ccb *ccb); 586 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 587 static struct cam_ed * 588 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 589 lun_id_t lun_id); 590 static void scsi_devise_transport(struct cam_path *path); 591 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 592 struct cam_path *path, 593 int async_update); 594 static void scsi_toggle_tags(struct cam_path *path); 595 static void scsi_dev_async(u_int32_t async_code, 596 struct cam_eb *bus, 597 struct cam_et *target, 598 struct cam_ed *device, 599 void *async_arg); 600 static void scsi_action(union ccb *start_ccb); 601 static void scsi_announce_periph(struct cam_periph *periph); 602 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb); 603 static void scsi_proto_announce(struct cam_ed *device); 604 static void scsi_proto_announce_sbuf(struct cam_ed *device, 605 struct sbuf *sb); 606 static void scsi_proto_denounce(struct cam_ed *device); 607 static void scsi_proto_denounce_sbuf(struct cam_ed *device, 608 struct sbuf *sb); 609 static void scsi_proto_debug_out(union ccb *ccb); 610 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *); 611 612 static struct xpt_xport_ops scsi_xport_ops = { 613 .alloc_device = scsi_alloc_device, 614 .action = scsi_action, 615 .async = scsi_dev_async, 616 .announce = scsi_announce_periph, 617 .announce_sbuf = scsi_announce_periph_sbuf, 618 }; 619 #define SCSI_XPT_XPORT(x, X) \ 620 static struct xpt_xport scsi_xport_ ## x = { \ 621 .xport = XPORT_ ## X, \ 622 .name = #x, \ 623 .ops = &scsi_xport_ops, \ 624 }; \ 625 CAM_XPT_XPORT(scsi_xport_ ## x); 626 627 SCSI_XPT_XPORT(spi, SPI); 628 SCSI_XPT_XPORT(sas, SAS); 629 SCSI_XPT_XPORT(fc, FC); 630 SCSI_XPT_XPORT(usb, USB); 631 SCSI_XPT_XPORT(iscsi, ISCSI); 632 SCSI_XPT_XPORT(srp, SRP); 633 SCSI_XPT_XPORT(ppb, PPB); 634 635 #undef SCSI_XPORT_XPORT 636 637 static struct xpt_proto_ops scsi_proto_ops = { 638 .announce = scsi_proto_announce, 639 .announce_sbuf = scsi_proto_announce_sbuf, 640 .denounce = scsi_proto_denounce, 641 .denounce_sbuf = scsi_proto_denounce_sbuf, 642 .debug_out = scsi_proto_debug_out, 643 }; 644 static struct xpt_proto scsi_proto = { 645 .proto = PROTO_SCSI, 646 .name = "scsi", 647 .ops = &scsi_proto_ops, 648 }; 649 CAM_XPT_PROTO(scsi_proto); 650 651 static void 652 probe_periph_init(void) 653 { 654 } 655 656 static cam_status 657 proberegister(struct cam_periph *periph, void *arg) 658 { 659 union ccb *request_ccb; /* CCB representing the probe request */ 660 probe_softc *softc; 661 662 request_ccb = (union ccb *)arg; 663 if (request_ccb == NULL) { 664 printf("proberegister: no probe CCB, " 665 "can't register device\n"); 666 return(CAM_REQ_CMP_ERR); 667 } 668 669 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 670 671 if (softc == NULL) { 672 printf("proberegister: Unable to probe new device. " 673 "Unable to allocate softc\n"); 674 return(CAM_REQ_CMP_ERR); 675 } 676 TAILQ_INIT(&softc->request_ccbs); 677 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 678 periph_links.tqe); 679 softc->flags = 0; 680 periph->softc = softc; 681 softc->periph = periph; 682 softc->action = PROBE_INVALID; 683 if (cam_periph_acquire(periph) != 0) 684 return (CAM_REQ_CMP_ERR); 685 686 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 687 scsi_devise_transport(periph->path); 688 689 /* 690 * Ensure we've waited at least a bus settle 691 * delay before attempting to probe the device. 692 * For HBAs that don't do bus resets, this won't make a difference. 693 */ 694 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 695 scsi_delay); 696 probeschedule(periph); 697 return(CAM_REQ_CMP); 698 } 699 700 static void 701 probeschedule(struct cam_periph *periph) 702 { 703 struct ccb_pathinq cpi; 704 union ccb *ccb; 705 probe_softc *softc; 706 707 softc = (probe_softc *)periph->softc; 708 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 709 710 xpt_path_inq(&cpi, periph->path); 711 712 /* 713 * If a device has gone away and another device, or the same one, 714 * is back in the same place, it should have a unit attention 715 * condition pending. It will not report the unit attention in 716 * response to an inquiry, which may leave invalid transfer 717 * negotiations in effect. The TUR will reveal the unit attention 718 * condition. Only send the TUR for lun 0, since some devices 719 * will get confused by commands other than inquiry to non-existent 720 * luns. If you think a device has gone away start your scan from 721 * lun 0. This will insure that any bogus transfer settings are 722 * invalidated. 723 * 724 * If we haven't seen the device before and the controller supports 725 * some kind of transfer negotiation, negotiate with the first 726 * sent command if no bus reset was performed at startup. This 727 * ensures that the device is not confused by transfer negotiation 728 * settings left over by loader or BIOS action. 729 */ 730 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 731 && (ccb->ccb_h.target_lun == 0)) { 732 PROBE_SET_ACTION(softc, PROBE_TUR); 733 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 734 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 735 proberequestdefaultnegotiation(periph); 736 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 737 } else { 738 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 739 } 740 741 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 742 softc->flags |= PROBE_NO_ANNOUNCE; 743 else 744 softc->flags &= ~PROBE_NO_ANNOUNCE; 745 746 if (cpi.hba_misc & PIM_EXTLUNS) 747 softc->flags |= PROBE_EXTLUN; 748 else 749 softc->flags &= ~PROBE_EXTLUN; 750 751 xpt_schedule(periph, CAM_PRIORITY_XPT); 752 } 753 754 static void 755 probestart(struct cam_periph *periph, union ccb *start_ccb) 756 { 757 /* Probe the device that our peripheral driver points to */ 758 struct ccb_scsiio *csio; 759 probe_softc *softc; 760 761 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 762 763 softc = (probe_softc *)periph->softc; 764 csio = &start_ccb->csio; 765 again: 766 767 switch (softc->action) { 768 case PROBE_TUR: 769 case PROBE_TUR_FOR_NEGOTIATION: 770 case PROBE_DV_EXIT: 771 { 772 scsi_test_unit_ready(csio, 773 /*retries*/4, 774 probedone, 775 MSG_SIMPLE_Q_TAG, 776 SSD_FULL_SIZE, 777 /*timeout*/60000); 778 break; 779 } 780 case PROBE_INQUIRY: 781 case PROBE_FULL_INQUIRY: 782 case PROBE_INQUIRY_BASIC_DV1: 783 case PROBE_INQUIRY_BASIC_DV2: 784 { 785 u_int inquiry_len; 786 struct scsi_inquiry_data *inq_buf; 787 788 inq_buf = &periph->path->device->inq_data; 789 790 /* 791 * If the device is currently configured, we calculate an 792 * MD5 checksum of the inquiry data, and if the serial number 793 * length is greater than 0, add the serial number data 794 * into the checksum as well. Once the inquiry and the 795 * serial number check finish, we attempt to figure out 796 * whether we still have the same device. 797 */ 798 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 799 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 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 memset(&cts, 0, sizeof(cts)); 1040 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1041 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1042 cts.type = CTS_TYPE_USER_SETTINGS; 1043 xpt_action((union ccb *)&cts); 1044 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1045 return; 1046 } 1047 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1048 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1049 xpt_action((union ccb *)&cts); 1050 } 1051 1052 /* 1053 * Backoff Negotiation Code- only pertinent for SPI devices. 1054 */ 1055 static int 1056 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1057 { 1058 struct ccb_trans_settings cts; 1059 struct ccb_trans_settings_spi *spi; 1060 1061 memset(&cts, 0, sizeof (cts)); 1062 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1063 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1064 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1065 xpt_action((union ccb *)&cts); 1066 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1067 if (bootverbose) { 1068 xpt_print(periph->path, 1069 "failed to get current device settings\n"); 1070 } 1071 return (0); 1072 } 1073 if (cts.transport != XPORT_SPI) { 1074 if (bootverbose) { 1075 xpt_print(periph->path, "not SPI transport\n"); 1076 } 1077 return (0); 1078 } 1079 spi = &cts.xport_specific.spi; 1080 1081 /* 1082 * We cannot renegotiate sync rate if we don't have one. 1083 */ 1084 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1085 if (bootverbose) { 1086 xpt_print(periph->path, "no sync rate known\n"); 1087 } 1088 return (0); 1089 } 1090 1091 /* 1092 * We'll assert that we don't have to touch PPR options- the 1093 * SIM will see what we do with period and offset and adjust 1094 * the PPR options as appropriate. 1095 */ 1096 1097 /* 1098 * A sync rate with unknown or zero offset is nonsensical. 1099 * A sync period of zero means Async. 1100 */ 1101 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1102 || spi->sync_offset == 0 || spi->sync_period == 0) { 1103 if (bootverbose) { 1104 xpt_print(periph->path, "no sync rate available\n"); 1105 } 1106 return (0); 1107 } 1108 1109 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1110 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1111 ("hit async: giving up on DV\n")); 1112 return (0); 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 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1178 ERESTART) { 1179 outr: 1180 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1181 cam_release_devq(path, 0, 0, 0, FALSE); 1182 return; 1183 } 1184 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1185 /* Don't wedge the queue */ 1186 xpt_release_devq(done_ccb->ccb_h.path, 1187 /*count*/1, 1188 /*run_queue*/TRUE); 1189 } 1190 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1191 xpt_release_ccb(done_ccb); 1192 xpt_schedule(periph, priority); 1193 out: 1194 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1195 cam_release_devq(path, 0, 0, 0, FALSE); 1196 cam_periph_release_locked(periph); 1197 return; 1198 } 1199 case PROBE_INQUIRY: 1200 case PROBE_FULL_INQUIRY: 1201 { 1202 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1203 u_int8_t periph_qual; 1204 1205 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1206 scsi_find_quirk(path->device); 1207 inq_buf = &path->device->inq_data; 1208 1209 periph_qual = SID_QUAL(inq_buf); 1210 1211 if (periph_qual == SID_QUAL_LU_CONNECTED || 1212 periph_qual == SID_QUAL_LU_OFFLINE) { 1213 /* 1214 * We conservatively request only 1215 * SHORT_INQUIRY_LEN bytes of inquiry 1216 * information during our first try 1217 * at sending an INQUIRY. If the device 1218 * has more information to give, 1219 * perform a second request specifying 1220 * the amount of information the device 1221 * is willing to give. 1222 */ 1223 if (softc->action == PROBE_INQUIRY 1224 && SID_ADDITIONAL_LENGTH(inq_buf) 1225 > SHORT_INQUIRY_LENGTH) { 1226 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1227 xpt_release_ccb(done_ccb); 1228 xpt_schedule(periph, priority); 1229 goto out; 1230 } 1231 1232 scsi_devise_transport(path); 1233 1234 if (path->device->lun_id == 0 && 1235 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1236 (SCSI_QUIRK(path->device)->quirks & 1237 CAM_QUIRK_NORPTLUNS) == 0) { 1238 PROBE_SET_ACTION(softc, 1239 PROBE_REPORT_LUNS); 1240 /* 1241 * Start with room for *one* lun. 1242 */ 1243 periph->path->target->rpl_size = 16; 1244 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1245 PROBE_SET_ACTION(softc, 1246 PROBE_MODE_SENSE); 1247 else 1248 PROBE_SET_ACTION(softc, 1249 PROBE_SUPPORTED_VPD_LIST); 1250 1251 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1252 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1253 xpt_acquire_device(path->device); 1254 } 1255 xpt_release_ccb(done_ccb); 1256 xpt_schedule(periph, priority); 1257 goto out; 1258 } else if (path->device->lun_id == 0 && 1259 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1260 (SCSI_QUIRK(path->device)->quirks & 1261 CAM_QUIRK_NORPTLUNS) == 0) { 1262 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1263 periph->path->target->rpl_size = 16; 1264 xpt_release_ccb(done_ccb); 1265 xpt_schedule(periph, priority); 1266 goto out; 1267 } 1268 } else if (cam_periph_error(done_ccb, 0, 1269 done_ccb->ccb_h.target_lun > 0 1270 ? SF_RETRY_UA|SF_QUIET_IR 1271 : SF_RETRY_UA) == ERESTART) { 1272 goto outr; 1273 } else { 1274 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1275 /* Don't wedge the queue */ 1276 xpt_release_devq(done_ccb->ccb_h.path, 1277 /*count*/1, /*run_queue*/TRUE); 1278 } 1279 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1280 } 1281 /* 1282 * If we get to this point, we got an error status back 1283 * from the inquiry and the error status doesn't require 1284 * automatically retrying the command. Therefore, the 1285 * inquiry failed. If we had inquiry information before 1286 * for this device, but this latest inquiry command failed, 1287 * the device has probably gone away. If this device isn't 1288 * already marked unconfigured, notify the peripheral 1289 * drivers that this device is no more. 1290 */ 1291 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1292 /* Send the async notification. */ 1293 xpt_async(AC_LOST_DEVICE, path, NULL); 1294 PROBE_SET_ACTION(softc, PROBE_INVALID); 1295 1296 xpt_release_ccb(done_ccb); 1297 break; 1298 } 1299 case PROBE_REPORT_LUNS: 1300 { 1301 struct ccb_scsiio *csio; 1302 struct scsi_report_luns_data *lp; 1303 u_int nlun, maxlun; 1304 1305 csio = &done_ccb->csio; 1306 1307 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1308 nlun = scsi_4btoul(lp->length) / 8; 1309 maxlun = (csio->dxfer_len / 8) - 1; 1310 1311 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1312 if (cam_periph_error(done_ccb, 0, 1313 done_ccb->ccb_h.target_lun > 0 ? 1314 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) == 1315 ERESTART) { 1316 goto outr; 1317 } 1318 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1319 xpt_release_devq(done_ccb->ccb_h.path, 1, 1320 TRUE); 1321 } 1322 free(lp, M_CAMXPT); 1323 lp = NULL; 1324 } else if (nlun > maxlun) { 1325 /* 1326 * Reallocate and retry to cover all luns 1327 */ 1328 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1329 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1330 nlun)); 1331 free(lp, M_CAMXPT); 1332 path->target->rpl_size = (nlun << 3) + 8; 1333 xpt_release_ccb(done_ccb); 1334 xpt_schedule(periph, priority); 1335 goto out; 1336 } else if (nlun == 0) { 1337 /* 1338 * If there don't appear to be any luns, bail. 1339 */ 1340 free(lp, M_CAMXPT); 1341 lp = NULL; 1342 } else { 1343 lun_id_t lun; 1344 int idx; 1345 1346 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1347 ("Probe: %u lun(s) reported\n", nlun)); 1348 1349 CAM_GET_LUN(lp, 0, lun); 1350 /* 1351 * If the first lun is not lun 0, then either there 1352 * is no lun 0 in the list, or the list is unsorted. 1353 */ 1354 if (lun != 0) { 1355 for (idx = 0; idx < nlun; idx++) { 1356 CAM_GET_LUN(lp, idx, lun); 1357 if (lun == 0) { 1358 break; 1359 } 1360 } 1361 if (idx != nlun) { 1362 uint8_t tlun[8]; 1363 memcpy(tlun, 1364 lp->luns[0].lundata, 8); 1365 memcpy(lp->luns[0].lundata, 1366 lp->luns[idx].lundata, 8); 1367 memcpy(lp->luns[idx].lundata, 1368 tlun, 8); 1369 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1370 ("lun 0 in position %u\n", idx)); 1371 } 1372 } 1373 /* 1374 * If we have an old lun list, We can either 1375 * retest luns that appear to have been dropped, 1376 * or just nuke them. We'll opt for the latter. 1377 * This function will also install the new list 1378 * in the target structure. 1379 */ 1380 probe_purge_old(path, lp, softc->flags); 1381 lp = NULL; 1382 } 1383 /* The processing above should either exit via a `goto 1384 * out` or leave the `lp` variable `NULL` and (if 1385 * applicable) `free()` the storage to which it had 1386 * pointed. Assert here that is the case. 1387 */ 1388 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1389 inq_buf = &path->device->inq_data; 1390 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1391 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1392 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1393 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1394 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1395 else 1396 PROBE_SET_ACTION(softc, 1397 PROBE_SUPPORTED_VPD_LIST); 1398 xpt_release_ccb(done_ccb); 1399 xpt_schedule(periph, priority); 1400 goto out; 1401 } 1402 PROBE_SET_ACTION(softc, PROBE_INVALID); 1403 xpt_release_ccb(done_ccb); 1404 break; 1405 } 1406 case PROBE_MODE_SENSE: 1407 { 1408 struct ccb_scsiio *csio; 1409 struct scsi_mode_header_6 *mode_hdr; 1410 1411 csio = &done_ccb->csio; 1412 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1413 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1414 struct scsi_control_page *page; 1415 u_int8_t *offset; 1416 1417 offset = ((u_int8_t *)&mode_hdr[1]) 1418 + mode_hdr->blk_desc_len; 1419 page = (struct scsi_control_page *)offset; 1420 path->device->queue_flags = page->queue_flags; 1421 } else if (cam_periph_error(done_ccb, 0, 1422 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1423 goto outr; 1424 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1425 /* Don't wedge the queue */ 1426 xpt_release_devq(done_ccb->ccb_h.path, 1427 /*count*/1, /*run_queue*/TRUE); 1428 } 1429 xpt_release_ccb(done_ccb); 1430 free(mode_hdr, M_CAMXPT); 1431 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1432 xpt_schedule(periph, priority); 1433 goto out; 1434 } 1435 case PROBE_SUPPORTED_VPD_LIST: 1436 { 1437 struct ccb_scsiio *csio; 1438 struct scsi_vpd_supported_page_list *page_list; 1439 1440 csio = &done_ccb->csio; 1441 page_list = 1442 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1443 1444 if (path->device->supported_vpds != NULL) { 1445 free(path->device->supported_vpds, M_CAMXPT); 1446 path->device->supported_vpds = NULL; 1447 path->device->supported_vpds_len = 0; 1448 } 1449 1450 if (page_list == NULL) { 1451 /* 1452 * Don't process the command as it was never sent 1453 */ 1454 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1455 /* Got vpd list */ 1456 path->device->supported_vpds_len = page_list->length + 1457 SVPD_SUPPORTED_PAGES_HDR_LEN; 1458 path->device->supported_vpds = (uint8_t *)page_list; 1459 xpt_release_ccb(done_ccb); 1460 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1461 xpt_schedule(periph, priority); 1462 goto out; 1463 } else if (cam_periph_error(done_ccb, 0, 1464 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1465 goto outr; 1466 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1467 /* Don't wedge the queue */ 1468 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1469 /*run_queue*/TRUE); 1470 } 1471 1472 if (page_list) 1473 free(page_list, M_CAMXPT); 1474 /* No VPDs available, skip to device check. */ 1475 csio->data_ptr = NULL; 1476 goto probe_device_check; 1477 } 1478 case PROBE_DEVICE_ID: 1479 { 1480 struct scsi_vpd_device_id *devid; 1481 struct ccb_scsiio *csio; 1482 uint32_t length = 0; 1483 1484 csio = &done_ccb->csio; 1485 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1486 1487 /* Clean up from previous instance of this device */ 1488 if (path->device->device_id != NULL) { 1489 path->device->device_id_len = 0; 1490 free(path->device->device_id, M_CAMXPT); 1491 path->device->device_id = NULL; 1492 } 1493 1494 if (devid == NULL) { 1495 /* Don't process the command as it was never sent */ 1496 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1497 length = scsi_2btoul(devid->length); 1498 if (length != 0) { 1499 /* 1500 * NB: device_id_len is actual response 1501 * size, not buffer size. 1502 */ 1503 path->device->device_id_len = length + 1504 SVPD_DEVICE_ID_HDR_LEN; 1505 path->device->device_id = (uint8_t *)devid; 1506 } 1507 } else if (cam_periph_error(done_ccb, 0, 1508 SF_RETRY_UA) == ERESTART) { 1509 goto outr; 1510 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1511 /* Don't wedge the queue */ 1512 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1513 /*run_queue*/TRUE); 1514 } 1515 1516 /* Free the device id space if we don't use it */ 1517 if (devid && length == 0) 1518 free(devid, M_CAMXPT); 1519 xpt_release_ccb(done_ccb); 1520 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1521 xpt_schedule(periph, priority); 1522 goto out; 1523 } 1524 case PROBE_EXTENDED_INQUIRY: { 1525 struct scsi_vpd_extended_inquiry_data *ext_inq; 1526 struct ccb_scsiio *csio; 1527 int32_t length = 0; 1528 1529 csio = &done_ccb->csio; 1530 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1531 csio->data_ptr; 1532 if (path->device->ext_inq != NULL) { 1533 path->device->ext_inq_len = 0; 1534 free(path->device->ext_inq, M_CAMXPT); 1535 path->device->ext_inq = NULL; 1536 } 1537 1538 if (ext_inq == NULL) { 1539 /* Don't process the command as it was never sent */ 1540 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1541 length = scsi_2btoul(ext_inq->page_length) + 1542 __offsetof(struct scsi_vpd_extended_inquiry_data, 1543 flags1); 1544 length = min(length, sizeof(*ext_inq)); 1545 length -= csio->resid; 1546 if (length > 0) { 1547 path->device->ext_inq_len = length; 1548 path->device->ext_inq = (uint8_t *)ext_inq; 1549 } 1550 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1551 ERESTART) { 1552 goto outr; 1553 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1554 /* Don't wedge the queue */ 1555 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1556 /*run_queue*/TRUE); 1557 } 1558 1559 /* Free the device id space if we don't use it */ 1560 if (ext_inq && length <= 0) 1561 free(ext_inq, M_CAMXPT); 1562 xpt_release_ccb(done_ccb); 1563 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1564 xpt_schedule(periph, priority); 1565 goto out; 1566 } 1567 1568 probe_device_check: 1569 case PROBE_SERIAL_NUM: 1570 { 1571 struct ccb_scsiio *csio; 1572 struct scsi_vpd_unit_serial_number *serial_buf; 1573 u_int32_t priority; 1574 int changed; 1575 int have_serialnum; 1576 1577 changed = 1; 1578 have_serialnum = 0; 1579 csio = &done_ccb->csio; 1580 priority = done_ccb->ccb_h.pinfo.priority; 1581 serial_buf = 1582 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1583 1584 if (serial_buf == NULL) { 1585 /* 1586 * Don't process the command as it was never sent 1587 */ 1588 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1589 && (serial_buf->length > 0)) { 1590 have_serialnum = 1; 1591 path->device->serial_num = 1592 (u_int8_t *)malloc((serial_buf->length + 1), 1593 M_CAMXPT, M_NOWAIT); 1594 if (path->device->serial_num != NULL) { 1595 int start, slen; 1596 1597 start = strspn(serial_buf->serial_num, " "); 1598 slen = serial_buf->length - start; 1599 if (slen <= 0) { 1600 /* 1601 * SPC5r05 says that an all-space serial 1602 * number means no product serial number 1603 * is available 1604 */ 1605 slen = 0; 1606 } 1607 memcpy(path->device->serial_num, 1608 &serial_buf->serial_num[start], slen); 1609 path->device->serial_num_len = slen; 1610 path->device->serial_num[slen] = '\0'; 1611 } 1612 } else if (cam_periph_error(done_ccb, 0, 1613 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1614 goto outr; 1615 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1616 /* Don't wedge the queue */ 1617 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1618 /*run_queue*/TRUE); 1619 } 1620 1621 /* 1622 * Let's see if we have seen this device before. 1623 */ 1624 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1625 MD5_CTX context; 1626 u_int8_t digest[16]; 1627 1628 MD5Init(&context); 1629 1630 MD5Update(&context, 1631 (unsigned char *)&path->device->inq_data, 1632 sizeof(struct scsi_inquiry_data)); 1633 1634 if (have_serialnum) 1635 MD5Update(&context, path->device->serial_num, 1636 path->device->serial_num_len); 1637 1638 MD5Final(digest, &context); 1639 if (bcmp(softc->digest, digest, 16) == 0) 1640 changed = 0; 1641 1642 /* 1643 * XXX Do we need to do a TUR in order to ensure 1644 * that the device really hasn't changed??? 1645 */ 1646 if ((changed != 0) 1647 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1648 xpt_async(AC_LOST_DEVICE, path, NULL); 1649 } 1650 if (serial_buf != NULL) 1651 free(serial_buf, M_CAMXPT); 1652 1653 if (changed != 0) { 1654 /* 1655 * Now that we have all the necessary 1656 * information to safely perform transfer 1657 * negotiations... Controllers don't perform 1658 * any negotiation or tagged queuing until 1659 * after the first XPT_SET_TRAN_SETTINGS ccb is 1660 * received. So, on a new device, just retrieve 1661 * the user settings, and set them as the current 1662 * settings to set the device up. 1663 */ 1664 proberequestdefaultnegotiation(periph); 1665 xpt_release_ccb(done_ccb); 1666 1667 /* 1668 * Perform a TUR to allow the controller to 1669 * perform any necessary transfer negotiation. 1670 */ 1671 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1672 xpt_schedule(periph, priority); 1673 goto out; 1674 } 1675 xpt_release_ccb(done_ccb); 1676 break; 1677 } 1678 case PROBE_TUR_FOR_NEGOTIATION: 1679 case PROBE_DV_EXIT: 1680 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1681 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1682 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1683 goto outr; 1684 } 1685 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1686 /* Don't wedge the queue */ 1687 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1688 /*run_queue*/TRUE); 1689 } 1690 /* 1691 * Do Domain Validation for lun 0 on devices that claim 1692 * to support Synchronous Transfer modes. 1693 */ 1694 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1695 && done_ccb->ccb_h.target_lun == 0 1696 && (path->device->inq_data.flags & SID_Sync) != 0 1697 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1698 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1699 ("Begin Domain Validation\n")); 1700 path->device->flags |= CAM_DEV_IN_DV; 1701 xpt_release_ccb(done_ccb); 1702 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1703 xpt_schedule(periph, priority); 1704 goto out; 1705 } 1706 if (softc->action == PROBE_DV_EXIT) { 1707 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1708 ("Leave Domain Validation\n")); 1709 } 1710 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1711 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1712 xpt_acquire_device(path->device); 1713 } 1714 path->device->flags &= 1715 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1716 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1717 /* Inform the XPT that a new device has been found */ 1718 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1719 xpt_action(done_ccb); 1720 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1721 done_ccb); 1722 } 1723 PROBE_SET_ACTION(softc, PROBE_DONE); 1724 xpt_release_ccb(done_ccb); 1725 break; 1726 case PROBE_INQUIRY_BASIC_DV1: 1727 case PROBE_INQUIRY_BASIC_DV2: 1728 { 1729 struct scsi_inquiry_data *nbuf; 1730 struct ccb_scsiio *csio; 1731 1732 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1733 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1734 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1735 goto outr; 1736 } 1737 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1738 /* Don't wedge the queue */ 1739 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1740 /*run_queue*/TRUE); 1741 } 1742 csio = &done_ccb->csio; 1743 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1744 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1745 xpt_print(path, 1746 "inquiry data fails comparison at DV%d step\n", 1747 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1748 if (proberequestbackoff(periph, path->device)) { 1749 path->device->flags &= ~CAM_DEV_IN_DV; 1750 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1751 } else { 1752 /* give up */ 1753 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1754 } 1755 free(nbuf, M_CAMXPT); 1756 xpt_release_ccb(done_ccb); 1757 xpt_schedule(periph, priority); 1758 goto out; 1759 } 1760 free(nbuf, M_CAMXPT); 1761 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1762 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1763 xpt_release_ccb(done_ccb); 1764 xpt_schedule(periph, priority); 1765 goto out; 1766 } 1767 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1768 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1769 ("Leave Domain Validation Successfully\n")); 1770 } 1771 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1772 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1773 xpt_acquire_device(path->device); 1774 } 1775 path->device->flags &= 1776 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1777 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1778 /* Inform the XPT that a new device has been found */ 1779 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1780 xpt_action(done_ccb); 1781 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1782 done_ccb); 1783 } 1784 PROBE_SET_ACTION(softc, PROBE_DONE); 1785 xpt_release_ccb(done_ccb); 1786 break; 1787 } 1788 default: 1789 panic("probedone: invalid action state 0x%x\n", softc->action); 1790 } 1791 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1792 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1793 done_ccb->ccb_h.status = CAM_REQ_CMP; 1794 xpt_done(done_ccb); 1795 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1796 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1797 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1798 cam_release_devq(path, 0, 0, 0, FALSE); 1799 cam_periph_release_locked(periph); 1800 cam_periph_invalidate(periph); 1801 cam_periph_release_locked(periph); 1802 } else { 1803 probeschedule(periph); 1804 goto out; 1805 } 1806 } 1807 1808 static void 1809 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1810 probe_flags flags) 1811 { 1812 struct cam_path *tp; 1813 struct scsi_report_luns_data *old; 1814 u_int idx1, idx2, nlun_old, nlun_new; 1815 lun_id_t this_lun; 1816 u_int8_t *ol, *nl; 1817 1818 if (path->target == NULL) { 1819 return; 1820 } 1821 mtx_lock(&path->target->luns_mtx); 1822 old = path->target->luns; 1823 path->target->luns = new; 1824 mtx_unlock(&path->target->luns_mtx); 1825 if (old == NULL) 1826 return; 1827 nlun_old = scsi_4btoul(old->length) / 8; 1828 nlun_new = scsi_4btoul(new->length) / 8; 1829 1830 /* 1831 * We are not going to assume sorted lists. Deal. 1832 */ 1833 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1834 ol = old->luns[idx1].lundata; 1835 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1836 nl = new->luns[idx2].lundata; 1837 if (memcmp(nl, ol, 8) == 0) { 1838 break; 1839 } 1840 } 1841 if (idx2 < nlun_new) { 1842 continue; 1843 } 1844 /* 1845 * An 'old' item not in the 'new' list. 1846 * Nuke it. Except that if it is lun 0, 1847 * that would be what the probe state 1848 * machine is currently working on, 1849 * so we won't do that. 1850 */ 1851 CAM_GET_LUN(old, idx1, this_lun); 1852 if (this_lun == 0) { 1853 continue; 1854 } 1855 1856 /* 1857 * We also cannot nuke it if it is 1858 * not in a lun format we understand 1859 * and replace the LUN with a "simple" LUN 1860 * if that is all the HBA supports. 1861 */ 1862 if (!(flags & PROBE_EXTLUN)) { 1863 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1864 continue; 1865 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1866 } 1867 1868 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1869 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1870 xpt_async(AC_LOST_DEVICE, tp, NULL); 1871 xpt_free_path(tp); 1872 } 1873 } 1874 free(old, M_CAMXPT); 1875 } 1876 1877 static void 1878 probecleanup(struct cam_periph *periph) 1879 { 1880 free(periph->softc, M_CAMXPT); 1881 } 1882 1883 static void 1884 scsi_find_quirk(struct cam_ed *device) 1885 { 1886 struct scsi_quirk_entry *quirk; 1887 caddr_t match; 1888 1889 match = cam_quirkmatch((caddr_t)&device->inq_data, 1890 (caddr_t)scsi_quirk_table, 1891 nitems(scsi_quirk_table), 1892 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1893 1894 if (match == NULL) 1895 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1896 1897 quirk = (struct scsi_quirk_entry *)match; 1898 device->quirk = quirk; 1899 device->mintags = quirk->mintags; 1900 device->maxtags = quirk->maxtags; 1901 } 1902 1903 static int 1904 sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1905 { 1906 int error, val; 1907 1908 val = cam_srch_hi; 1909 error = sysctl_handle_int(oidp, &val, 0, req); 1910 if (error != 0 || req->newptr == NULL) 1911 return (error); 1912 if (val == 0 || val == 1) { 1913 cam_srch_hi = val; 1914 return (0); 1915 } else { 1916 return (EINVAL); 1917 } 1918 } 1919 1920 typedef struct { 1921 union ccb *request_ccb; 1922 struct ccb_pathinq *cpi; 1923 int counter; 1924 int lunindex[0]; 1925 } scsi_scan_bus_info; 1926 1927 /* 1928 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1929 * As the scan progresses, scsi_scan_bus is used as the 1930 * callback on completion function. 1931 */ 1932 static void 1933 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1934 { 1935 struct mtx *mtx; 1936 1937 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1938 ("scsi_scan_bus\n")); 1939 switch (request_ccb->ccb_h.func_code) { 1940 case XPT_SCAN_BUS: 1941 case XPT_SCAN_TGT: 1942 { 1943 scsi_scan_bus_info *scan_info; 1944 union ccb *work_ccb, *reset_ccb; 1945 struct cam_path *path; 1946 u_int i; 1947 u_int low_target, max_target; 1948 u_int initiator_id; 1949 1950 /* Find out the characteristics of the bus */ 1951 work_ccb = xpt_alloc_ccb_nowait(); 1952 if (work_ccb == NULL) { 1953 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1954 xpt_done(request_ccb); 1955 return; 1956 } 1957 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1958 request_ccb->ccb_h.pinfo.priority); 1959 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1960 xpt_action(work_ccb); 1961 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1962 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1963 xpt_free_ccb(work_ccb); 1964 xpt_done(request_ccb); 1965 return; 1966 } 1967 1968 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1969 /* 1970 * Can't scan the bus on an adapter that 1971 * cannot perform the initiator role. 1972 */ 1973 request_ccb->ccb_h.status = CAM_REQ_CMP; 1974 xpt_free_ccb(work_ccb); 1975 xpt_done(request_ccb); 1976 return; 1977 } 1978 1979 /* We may need to reset bus first, if we haven't done it yet. */ 1980 if ((work_ccb->cpi.hba_inquiry & 1981 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1982 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1983 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1984 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1985 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1986 CAM_PRIORITY_NONE); 1987 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1988 xpt_action(reset_ccb); 1989 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1990 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1991 xpt_free_ccb(reset_ccb); 1992 xpt_free_ccb(work_ccb); 1993 xpt_done(request_ccb); 1994 return; 1995 } 1996 xpt_free_ccb(reset_ccb); 1997 } 1998 1999 /* Save some state for use while we probe for devices */ 2000 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 2001 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 2002 if (scan_info == NULL) { 2003 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2004 xpt_free_ccb(work_ccb); 2005 xpt_done(request_ccb); 2006 return; 2007 } 2008 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2009 ("SCAN start for %p\n", scan_info)); 2010 scan_info->request_ccb = request_ccb; 2011 scan_info->cpi = &work_ccb->cpi; 2012 2013 /* Cache on our stack so we can work asynchronously */ 2014 max_target = scan_info->cpi->max_target; 2015 low_target = 0; 2016 initiator_id = scan_info->cpi->initiator_id; 2017 2018 /* 2019 * We can scan all targets in parallel, or do it sequentially. 2020 */ 2021 2022 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2023 max_target = low_target = request_ccb->ccb_h.target_id; 2024 scan_info->counter = 0; 2025 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2026 max_target = 0; 2027 scan_info->counter = 0; 2028 } else { 2029 scan_info->counter = scan_info->cpi->max_target + 1; 2030 if (scan_info->cpi->initiator_id < scan_info->counter) { 2031 scan_info->counter--; 2032 } 2033 } 2034 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2035 mtx_unlock(mtx); 2036 2037 for (i = low_target; i <= max_target; i++) { 2038 cam_status status; 2039 if (i == initiator_id) 2040 continue; 2041 2042 status = xpt_create_path(&path, NULL, 2043 request_ccb->ccb_h.path_id, 2044 i, 0); 2045 if (status != CAM_REQ_CMP) { 2046 printf("scsi_scan_bus: xpt_create_path failed" 2047 " with status %#x, bus scan halted\n", 2048 status); 2049 free(scan_info, M_CAMXPT); 2050 request_ccb->ccb_h.status = status; 2051 xpt_free_ccb(work_ccb); 2052 xpt_done(request_ccb); 2053 break; 2054 } 2055 work_ccb = xpt_alloc_ccb_nowait(); 2056 if (work_ccb == NULL) { 2057 xpt_free_ccb((union ccb *)scan_info->cpi); 2058 free(scan_info, M_CAMXPT); 2059 xpt_free_path(path); 2060 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2061 xpt_done(request_ccb); 2062 break; 2063 } 2064 xpt_setup_ccb(&work_ccb->ccb_h, path, 2065 request_ccb->ccb_h.pinfo.priority); 2066 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2067 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2068 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2069 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2070 work_ccb->crcn.flags = request_ccb->crcn.flags; 2071 xpt_action(work_ccb); 2072 } 2073 2074 mtx_lock(mtx); 2075 break; 2076 } 2077 case XPT_SCAN_LUN: 2078 { 2079 cam_status status; 2080 struct cam_path *path, *oldpath; 2081 scsi_scan_bus_info *scan_info; 2082 struct cam_et *target; 2083 struct cam_ed *device, *nextdev; 2084 int next_target; 2085 path_id_t path_id; 2086 target_id_t target_id; 2087 lun_id_t lun_id; 2088 2089 oldpath = request_ccb->ccb_h.path; 2090 2091 status = cam_ccb_status(request_ccb); 2092 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2093 path_id = request_ccb->ccb_h.path_id; 2094 target_id = request_ccb->ccb_h.target_id; 2095 lun_id = request_ccb->ccb_h.target_lun; 2096 target = request_ccb->ccb_h.path->target; 2097 next_target = 1; 2098 2099 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2100 mtx_lock(mtx); 2101 mtx_lock(&target->luns_mtx); 2102 if (target->luns) { 2103 lun_id_t first; 2104 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2105 2106 /* 2107 * Make sure we skip over lun 0 if it's the first member 2108 * of the list as we've actually just finished probing 2109 * it. 2110 */ 2111 CAM_GET_LUN(target->luns, 0, first); 2112 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2113 scan_info->lunindex[target_id]++; 2114 } 2115 2116 /* 2117 * Skip any LUNs that the HBA can't deal with. 2118 */ 2119 while (scan_info->lunindex[target_id] < nluns) { 2120 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2121 CAM_GET_LUN(target->luns, 2122 scan_info->lunindex[target_id], 2123 lun_id); 2124 break; 2125 } 2126 2127 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2128 scan_info->lunindex[target_id])) { 2129 CAM_GET_SIMPLE_LUN(target->luns, 2130 scan_info->lunindex[target_id], 2131 lun_id); 2132 break; 2133 } 2134 2135 scan_info->lunindex[target_id]++; 2136 } 2137 2138 if (scan_info->lunindex[target_id] < nluns) { 2139 mtx_unlock(&target->luns_mtx); 2140 next_target = 0; 2141 CAM_DEBUG(request_ccb->ccb_h.path, 2142 CAM_DEBUG_PROBE, 2143 ("next lun to try at index %u is %jx\n", 2144 scan_info->lunindex[target_id], 2145 (uintmax_t)lun_id)); 2146 scan_info->lunindex[target_id]++; 2147 } else { 2148 mtx_unlock(&target->luns_mtx); 2149 /* We're done with scanning all luns. */ 2150 } 2151 } else { 2152 mtx_unlock(&target->luns_mtx); 2153 device = request_ccb->ccb_h.path->device; 2154 /* Continue sequential LUN scan if: */ 2155 /* -- we have more LUNs that need recheck */ 2156 mtx_lock(&target->bus->eb_mtx); 2157 nextdev = device; 2158 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2159 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2160 break; 2161 mtx_unlock(&target->bus->eb_mtx); 2162 if (nextdev != NULL) { 2163 next_target = 0; 2164 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2165 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2166 next_target = 1; 2167 /* -- this LUN is connected and its SCSI version 2168 * allows more LUNs. */ 2169 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2170 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2171 CAN_SRCH_HI_DENSE(device)) 2172 next_target = 0; 2173 /* -- this LUN is disconnected, its SCSI version 2174 * allows more LUNs and we guess they may be. */ 2175 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2176 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2177 CAN_SRCH_HI_SPARSE(device)) 2178 next_target = 0; 2179 } 2180 if (next_target == 0) { 2181 lun_id++; 2182 if (lun_id > scan_info->cpi->max_lun) 2183 next_target = 1; 2184 } 2185 } 2186 2187 /* 2188 * Check to see if we scan any further luns. 2189 */ 2190 if (next_target) { 2191 int done; 2192 2193 /* 2194 * Free the current request path- we're done with it. 2195 */ 2196 xpt_free_path(oldpath); 2197 hop_again: 2198 done = 0; 2199 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2200 done = 1; 2201 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2202 scan_info->counter++; 2203 if (scan_info->counter == 2204 scan_info->cpi->initiator_id) { 2205 scan_info->counter++; 2206 } 2207 if (scan_info->counter >= 2208 scan_info->cpi->max_target+1) { 2209 done = 1; 2210 } 2211 } else { 2212 scan_info->counter--; 2213 if (scan_info->counter == 0) { 2214 done = 1; 2215 } 2216 } 2217 if (done) { 2218 mtx_unlock(mtx); 2219 xpt_free_ccb(request_ccb); 2220 xpt_free_ccb((union ccb *)scan_info->cpi); 2221 request_ccb = scan_info->request_ccb; 2222 CAM_DEBUG(request_ccb->ccb_h.path, 2223 CAM_DEBUG_TRACE, 2224 ("SCAN done for %p\n", scan_info)); 2225 free(scan_info, M_CAMXPT); 2226 request_ccb->ccb_h.status = CAM_REQ_CMP; 2227 xpt_done(request_ccb); 2228 break; 2229 } 2230 2231 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2232 mtx_unlock(mtx); 2233 xpt_free_ccb(request_ccb); 2234 break; 2235 } 2236 status = xpt_create_path(&path, NULL, 2237 scan_info->request_ccb->ccb_h.path_id, 2238 scan_info->counter, 0); 2239 if (status != CAM_REQ_CMP) { 2240 mtx_unlock(mtx); 2241 printf("scsi_scan_bus: xpt_create_path failed" 2242 " with status %#x, bus scan halted\n", 2243 status); 2244 xpt_free_ccb(request_ccb); 2245 xpt_free_ccb((union ccb *)scan_info->cpi); 2246 request_ccb = scan_info->request_ccb; 2247 free(scan_info, M_CAMXPT); 2248 request_ccb->ccb_h.status = status; 2249 xpt_done(request_ccb); 2250 break; 2251 } 2252 xpt_setup_ccb(&request_ccb->ccb_h, path, 2253 request_ccb->ccb_h.pinfo.priority); 2254 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2255 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2256 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2257 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2258 request_ccb->crcn.flags = 2259 scan_info->request_ccb->crcn.flags; 2260 } else { 2261 status = xpt_create_path(&path, NULL, 2262 path_id, target_id, lun_id); 2263 /* 2264 * Free the old request path- we're done with it. We 2265 * do this *after* creating the new path so that 2266 * we don't remove a target that has our lun list 2267 * in the case that lun 0 is not present. 2268 */ 2269 xpt_free_path(oldpath); 2270 if (status != CAM_REQ_CMP) { 2271 printf("scsi_scan_bus: xpt_create_path failed " 2272 "with status %#x, halting LUN scan\n", 2273 status); 2274 goto hop_again; 2275 } 2276 xpt_setup_ccb(&request_ccb->ccb_h, path, 2277 request_ccb->ccb_h.pinfo.priority); 2278 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2279 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2280 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2281 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2282 request_ccb->crcn.flags = 2283 scan_info->request_ccb->crcn.flags; 2284 } 2285 mtx_unlock(mtx); 2286 xpt_action(request_ccb); 2287 break; 2288 } 2289 default: 2290 break; 2291 } 2292 } 2293 2294 static void 2295 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2296 cam_flags flags, union ccb *request_ccb) 2297 { 2298 struct ccb_pathinq cpi; 2299 cam_status status; 2300 struct cam_path *new_path; 2301 struct cam_periph *old_periph; 2302 int lock; 2303 2304 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2305 2306 memset(&cpi, 0, sizeof(cpi)); 2307 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2308 cpi.ccb_h.func_code = XPT_PATH_INQ; 2309 xpt_action((union ccb *)&cpi); 2310 2311 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2312 if (request_ccb != NULL) { 2313 request_ccb->ccb_h.status = cpi.ccb_h.status; 2314 xpt_done(request_ccb); 2315 } 2316 return; 2317 } 2318 2319 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2320 /* 2321 * Can't scan the bus on an adapter that 2322 * cannot perform the initiator role. 2323 */ 2324 if (request_ccb != NULL) { 2325 request_ccb->ccb_h.status = CAM_REQ_CMP; 2326 xpt_done(request_ccb); 2327 } 2328 return; 2329 } 2330 2331 if (request_ccb == NULL) { 2332 request_ccb = xpt_alloc_ccb_nowait(); 2333 if (request_ccb == NULL) { 2334 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2335 "can't continue\n"); 2336 return; 2337 } 2338 status = xpt_create_path(&new_path, NULL, 2339 path->bus->path_id, 2340 path->target->target_id, 2341 path->device->lun_id); 2342 if (status != CAM_REQ_CMP) { 2343 xpt_print(path, "scsi_scan_lun: can't create path, " 2344 "can't continue\n"); 2345 xpt_free_ccb(request_ccb); 2346 return; 2347 } 2348 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2349 request_ccb->ccb_h.cbfcnp = xptscandone; 2350 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2351 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2352 request_ccb->crcn.flags = flags; 2353 } 2354 2355 lock = (xpt_path_owned(path) == 0); 2356 if (lock) 2357 xpt_path_lock(path); 2358 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2359 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2360 probe_softc *softc; 2361 2362 softc = (probe_softc *)old_periph->softc; 2363 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2364 &request_ccb->ccb_h, periph_links.tqe); 2365 } else { 2366 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2367 xpt_done(request_ccb); 2368 } 2369 } else { 2370 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2371 probestart, "probe", 2372 CAM_PERIPH_BIO, 2373 request_ccb->ccb_h.path, NULL, 0, 2374 request_ccb); 2375 2376 if (status != CAM_REQ_CMP) { 2377 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2378 "returned an error, can't continue probe\n"); 2379 request_ccb->ccb_h.status = status; 2380 xpt_done(request_ccb); 2381 } 2382 } 2383 if (lock) 2384 xpt_path_unlock(path); 2385 } 2386 2387 static void 2388 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2389 { 2390 2391 xpt_free_path(done_ccb->ccb_h.path); 2392 xpt_free_ccb(done_ccb); 2393 } 2394 2395 static struct cam_ed * 2396 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2397 { 2398 struct scsi_quirk_entry *quirk; 2399 struct cam_ed *device; 2400 2401 device = xpt_alloc_device(bus, target, lun_id); 2402 if (device == NULL) 2403 return (NULL); 2404 2405 /* 2406 * Take the default quirk entry until we have inquiry 2407 * data and can determine a better quirk to use. 2408 */ 2409 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2410 device->quirk = (void *)quirk; 2411 device->mintags = quirk->mintags; 2412 device->maxtags = quirk->maxtags; 2413 bzero(&device->inq_data, sizeof(device->inq_data)); 2414 device->inq_flags = 0; 2415 device->queue_flags = 0; 2416 device->serial_num = NULL; 2417 device->serial_num_len = 0; 2418 device->device_id = NULL; 2419 device->device_id_len = 0; 2420 device->supported_vpds = NULL; 2421 device->supported_vpds_len = 0; 2422 return (device); 2423 } 2424 2425 static void 2426 scsi_devise_transport(struct cam_path *path) 2427 { 2428 struct ccb_pathinq cpi; 2429 struct ccb_trans_settings cts; 2430 struct scsi_inquiry_data *inq_buf; 2431 2432 /* Get transport information from the SIM */ 2433 memset(&cpi, 0, sizeof(cpi)); 2434 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2435 cpi.ccb_h.func_code = XPT_PATH_INQ; 2436 xpt_action((union ccb *)&cpi); 2437 2438 inq_buf = NULL; 2439 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2440 inq_buf = &path->device->inq_data; 2441 path->device->protocol = PROTO_SCSI; 2442 path->device->protocol_version = 2443 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2444 path->device->transport = cpi.transport; 2445 path->device->transport_version = cpi.transport_version; 2446 2447 /* 2448 * Any device not using SPI3 features should 2449 * be considered SPI2 or lower. 2450 */ 2451 if (inq_buf != NULL) { 2452 if (path->device->transport == XPORT_SPI 2453 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2454 && path->device->transport_version > 2) 2455 path->device->transport_version = 2; 2456 } else { 2457 struct cam_ed* otherdev; 2458 2459 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2460 otherdev != NULL; 2461 otherdev = TAILQ_NEXT(otherdev, links)) { 2462 if (otherdev != path->device) 2463 break; 2464 } 2465 2466 if (otherdev != NULL) { 2467 /* 2468 * Initially assume the same versioning as 2469 * prior luns for this target. 2470 */ 2471 path->device->protocol_version = 2472 otherdev->protocol_version; 2473 path->device->transport_version = 2474 otherdev->transport_version; 2475 } else { 2476 /* Until we know better, opt for safety */ 2477 path->device->protocol_version = 2; 2478 if (path->device->transport == XPORT_SPI) 2479 path->device->transport_version = 2; 2480 else 2481 path->device->transport_version = 0; 2482 } 2483 } 2484 2485 /* 2486 * XXX 2487 * For a device compliant with SPC-2 we should be able 2488 * to determine the transport version supported by 2489 * scrutinizing the version descriptors in the 2490 * inquiry buffer. 2491 */ 2492 2493 /* Tell the controller what we think */ 2494 memset(&cts, 0, sizeof(cts)); 2495 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2496 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2497 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2498 cts.transport = path->device->transport; 2499 cts.transport_version = path->device->transport_version; 2500 cts.protocol = path->device->protocol; 2501 cts.protocol_version = path->device->protocol_version; 2502 cts.proto_specific.valid = 0; 2503 cts.xport_specific.valid = 0; 2504 xpt_action((union ccb *)&cts); 2505 } 2506 2507 static void 2508 scsi_dev_advinfo(union ccb *start_ccb) 2509 { 2510 struct cam_ed *device; 2511 struct ccb_dev_advinfo *cdai; 2512 off_t amt; 2513 2514 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2515 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2516 device = start_ccb->ccb_h.path->device; 2517 cdai = &start_ccb->cdai; 2518 switch(cdai->buftype) { 2519 case CDAI_TYPE_SCSI_DEVID: 2520 if (cdai->flags & CDAI_FLAG_STORE) 2521 return; 2522 cdai->provsiz = device->device_id_len; 2523 if (device->device_id_len == 0) 2524 break; 2525 amt = device->device_id_len; 2526 if (cdai->provsiz > cdai->bufsiz) 2527 amt = cdai->bufsiz; 2528 memcpy(cdai->buf, device->device_id, amt); 2529 break; 2530 case CDAI_TYPE_SERIAL_NUM: 2531 if (cdai->flags & CDAI_FLAG_STORE) 2532 return; 2533 cdai->provsiz = device->serial_num_len; 2534 if (device->serial_num_len == 0) 2535 break; 2536 amt = device->serial_num_len; 2537 if (cdai->provsiz > cdai->bufsiz) 2538 amt = cdai->bufsiz; 2539 memcpy(cdai->buf, device->serial_num, amt); 2540 break; 2541 case CDAI_TYPE_PHYS_PATH: 2542 if (cdai->flags & CDAI_FLAG_STORE) { 2543 if (device->physpath != NULL) { 2544 free(device->physpath, M_CAMXPT); 2545 device->physpath = NULL; 2546 device->physpath_len = 0; 2547 } 2548 /* Clear existing buffer if zero length */ 2549 if (cdai->bufsiz == 0) 2550 break; 2551 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2552 if (device->physpath == NULL) { 2553 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2554 return; 2555 } 2556 device->physpath_len = cdai->bufsiz; 2557 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2558 } else { 2559 cdai->provsiz = device->physpath_len; 2560 if (device->physpath_len == 0) 2561 break; 2562 amt = device->physpath_len; 2563 if (cdai->provsiz > cdai->bufsiz) 2564 amt = cdai->bufsiz; 2565 memcpy(cdai->buf, device->physpath, amt); 2566 } 2567 break; 2568 case CDAI_TYPE_RCAPLONG: 2569 if (cdai->flags & CDAI_FLAG_STORE) { 2570 if (device->rcap_buf != NULL) { 2571 free(device->rcap_buf, M_CAMXPT); 2572 device->rcap_buf = NULL; 2573 } 2574 2575 device->rcap_len = cdai->bufsiz; 2576 /* Clear existing buffer if zero length */ 2577 if (cdai->bufsiz == 0) 2578 break; 2579 2580 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2581 M_NOWAIT); 2582 if (device->rcap_buf == NULL) { 2583 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2584 return; 2585 } 2586 2587 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2588 } else { 2589 cdai->provsiz = device->rcap_len; 2590 if (device->rcap_len == 0) 2591 break; 2592 amt = device->rcap_len; 2593 if (cdai->provsiz > cdai->bufsiz) 2594 amt = cdai->bufsiz; 2595 memcpy(cdai->buf, device->rcap_buf, amt); 2596 } 2597 break; 2598 case CDAI_TYPE_EXT_INQ: 2599 /* 2600 * We fetch extended inquiry data during probe, if 2601 * available. We don't allow changing it. 2602 */ 2603 if (cdai->flags & CDAI_FLAG_STORE) 2604 return; 2605 cdai->provsiz = device->ext_inq_len; 2606 if (device->ext_inq_len == 0) 2607 break; 2608 amt = device->ext_inq_len; 2609 if (cdai->provsiz > cdai->bufsiz) 2610 amt = cdai->bufsiz; 2611 memcpy(cdai->buf, device->ext_inq, amt); 2612 break; 2613 default: 2614 return; 2615 } 2616 start_ccb->ccb_h.status = CAM_REQ_CMP; 2617 2618 if (cdai->flags & CDAI_FLAG_STORE) { 2619 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2620 (void *)(uintptr_t)cdai->buftype); 2621 } 2622 } 2623 2624 static void 2625 scsi_action(union ccb *start_ccb) 2626 { 2627 2628 if (start_ccb->ccb_h.func_code != XPT_SCSI_IO) { 2629 #ifdef notyet 2630 KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0, 2631 ("%s: ccb %p, func_code %#x should not be allocated " 2632 "from UMA zone\n", 2633 __func__, start_ccb, start_ccb->ccb_h.func_code)); 2634 #else 2635 if ((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) != 0) { 2636 printf("%s: ccb %p, func_code %#x should not be allocated " 2637 "from UMA zone\n", 2638 __func__, start_ccb, start_ccb->ccb_h.func_code); 2639 } 2640 #endif 2641 } 2642 2643 switch (start_ccb->ccb_h.func_code) { 2644 case XPT_SET_TRAN_SETTINGS: 2645 { 2646 scsi_set_transfer_settings(&start_ccb->cts, 2647 start_ccb->ccb_h.path, 2648 /*async_update*/FALSE); 2649 break; 2650 } 2651 case XPT_SCAN_BUS: 2652 case XPT_SCAN_TGT: 2653 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2654 break; 2655 case XPT_SCAN_LUN: 2656 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2657 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2658 start_ccb); 2659 break; 2660 case XPT_DEV_ADVINFO: 2661 { 2662 scsi_dev_advinfo(start_ccb); 2663 break; 2664 } 2665 default: 2666 xpt_action_default(start_ccb); 2667 break; 2668 } 2669 } 2670 2671 static void 2672 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2673 int async_update) 2674 { 2675 struct ccb_pathinq cpi; 2676 struct ccb_trans_settings cur_cts; 2677 struct ccb_trans_settings_scsi *scsi; 2678 struct ccb_trans_settings_scsi *cur_scsi; 2679 struct scsi_inquiry_data *inq_data; 2680 struct cam_ed *device; 2681 2682 if (path == NULL || (device = path->device) == NULL) { 2683 cts->ccb_h.status = CAM_PATH_INVALID; 2684 xpt_done((union ccb *)cts); 2685 return; 2686 } 2687 2688 if (cts->protocol == PROTO_UNKNOWN 2689 || cts->protocol == PROTO_UNSPECIFIED) { 2690 cts->protocol = device->protocol; 2691 cts->protocol_version = device->protocol_version; 2692 } 2693 2694 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2695 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2696 cts->protocol_version = device->protocol_version; 2697 2698 if (cts->protocol != device->protocol) { 2699 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2700 cts->protocol, device->protocol); 2701 cts->protocol = device->protocol; 2702 } 2703 2704 if (cts->protocol_version > device->protocol_version) { 2705 if (bootverbose) { 2706 xpt_print(path, "Down reving Protocol " 2707 "Version from %d to %d?\n", cts->protocol_version, 2708 device->protocol_version); 2709 } 2710 cts->protocol_version = device->protocol_version; 2711 } 2712 2713 if (cts->transport == XPORT_UNKNOWN 2714 || cts->transport == XPORT_UNSPECIFIED) { 2715 cts->transport = device->transport; 2716 cts->transport_version = device->transport_version; 2717 } 2718 2719 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2720 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2721 cts->transport_version = device->transport_version; 2722 2723 if (cts->transport != device->transport) { 2724 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2725 cts->transport, device->transport); 2726 cts->transport = device->transport; 2727 } 2728 2729 if (cts->transport_version > device->transport_version) { 2730 if (bootverbose) { 2731 xpt_print(path, "Down reving Transport " 2732 "Version from %d to %d?\n", cts->transport_version, 2733 device->transport_version); 2734 } 2735 cts->transport_version = device->transport_version; 2736 } 2737 2738 /* 2739 * Nothing more of interest to do unless 2740 * this is a device connected via the 2741 * SCSI protocol. 2742 */ 2743 if (cts->protocol != PROTO_SCSI) { 2744 if (async_update == FALSE) 2745 xpt_action_default((union ccb *)cts); 2746 return; 2747 } 2748 2749 inq_data = &device->inq_data; 2750 scsi = &cts->proto_specific.scsi; 2751 memset(&cpi, 0, sizeof(cpi)); 2752 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2753 cpi.ccb_h.func_code = XPT_PATH_INQ; 2754 xpt_action((union ccb *)&cpi); 2755 2756 /* SCSI specific sanity checking */ 2757 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2758 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2759 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2760 || (device->mintags == 0)) { 2761 /* 2762 * Can't tag on hardware that doesn't support tags, 2763 * doesn't have it enabled, or has broken tag support. 2764 */ 2765 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2766 } 2767 2768 if (async_update == FALSE) { 2769 /* 2770 * Perform sanity checking against what the 2771 * controller and device can do. 2772 */ 2773 memset(&cur_cts, 0, sizeof(cur_cts)); 2774 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2775 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2776 cur_cts.type = cts->type; 2777 xpt_action((union ccb *)&cur_cts); 2778 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2779 return; 2780 } 2781 cur_scsi = &cur_cts.proto_specific.scsi; 2782 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2783 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2784 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2785 } 2786 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2787 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2788 } 2789 2790 /* SPI specific sanity checking */ 2791 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2792 u_int spi3caps; 2793 struct ccb_trans_settings_spi *spi; 2794 struct ccb_trans_settings_spi *cur_spi; 2795 2796 spi = &cts->xport_specific.spi; 2797 2798 cur_spi = &cur_cts.xport_specific.spi; 2799 2800 /* Fill in any gaps in what the user gave us */ 2801 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2802 spi->sync_period = cur_spi->sync_period; 2803 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2804 spi->sync_period = 0; 2805 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2806 spi->sync_offset = cur_spi->sync_offset; 2807 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2808 spi->sync_offset = 0; 2809 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2810 spi->ppr_options = cur_spi->ppr_options; 2811 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2812 spi->ppr_options = 0; 2813 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2814 spi->bus_width = cur_spi->bus_width; 2815 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2816 spi->bus_width = 0; 2817 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2818 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2819 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2820 } 2821 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2822 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2823 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2824 && (inq_data->flags & SID_Sync) == 0 2825 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2826 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2827 /* Force async */ 2828 spi->sync_period = 0; 2829 spi->sync_offset = 0; 2830 } 2831 2832 switch (spi->bus_width) { 2833 case MSG_EXT_WDTR_BUS_32_BIT: 2834 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2835 || (inq_data->flags & SID_WBus32) != 0 2836 || cts->type == CTS_TYPE_USER_SETTINGS) 2837 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2838 break; 2839 /* Fall Through to 16-bit */ 2840 case MSG_EXT_WDTR_BUS_16_BIT: 2841 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2842 || (inq_data->flags & SID_WBus16) != 0 2843 || cts->type == CTS_TYPE_USER_SETTINGS) 2844 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2845 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2846 break; 2847 } 2848 /* Fall Through to 8-bit */ 2849 default: /* New bus width?? */ 2850 case MSG_EXT_WDTR_BUS_8_BIT: 2851 /* All targets can do this */ 2852 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2853 break; 2854 } 2855 2856 spi3caps = cpi.xport_specific.spi.ppr_options; 2857 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2858 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2859 spi3caps &= inq_data->spi3data; 2860 2861 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2862 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2863 2864 if ((spi3caps & SID_SPI_IUS) == 0) 2865 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2866 2867 if ((spi3caps & SID_SPI_QAS) == 0) 2868 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2869 2870 /* No SPI Transfer settings are allowed unless we are wide */ 2871 if (spi->bus_width == 0) 2872 spi->ppr_options = 0; 2873 2874 if ((spi->valid & CTS_SPI_VALID_DISC) 2875 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2876 /* 2877 * Can't tag queue without disconnection. 2878 */ 2879 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2880 scsi->valid |= CTS_SCSI_VALID_TQ; 2881 } 2882 2883 /* 2884 * If we are currently performing tagged transactions to 2885 * this device and want to change its negotiation parameters, 2886 * go non-tagged for a bit to give the controller a chance to 2887 * negotiate unhampered by tag messages. 2888 */ 2889 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2890 && (device->inq_flags & SID_CmdQue) != 0 2891 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2892 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2893 CTS_SPI_VALID_SYNC_OFFSET| 2894 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2895 scsi_toggle_tags(path); 2896 } 2897 2898 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2899 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2900 int device_tagenb; 2901 2902 /* 2903 * If we are transitioning from tags to no-tags or 2904 * vice-versa, we need to carefully freeze and restart 2905 * the queue so that we don't overlap tagged and non-tagged 2906 * commands. We also temporarily stop tags if there is 2907 * a change in transfer negotiation settings to allow 2908 * "tag-less" negotiation. 2909 */ 2910 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2911 || (device->inq_flags & SID_CmdQue) != 0) 2912 device_tagenb = TRUE; 2913 else 2914 device_tagenb = FALSE; 2915 2916 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2917 && device_tagenb == FALSE) 2918 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2919 && device_tagenb == TRUE)) { 2920 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2921 /* 2922 * Delay change to use tags until after a 2923 * few commands have gone to this device so 2924 * the controller has time to perform transfer 2925 * negotiations without tagged messages getting 2926 * in the way. 2927 */ 2928 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2929 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2930 } else { 2931 xpt_stop_tags(path); 2932 } 2933 } 2934 } 2935 if (async_update == FALSE) 2936 xpt_action_default((union ccb *)cts); 2937 } 2938 2939 static void 2940 scsi_toggle_tags(struct cam_path *path) 2941 { 2942 struct cam_ed *dev; 2943 2944 /* 2945 * Give controllers a chance to renegotiate 2946 * before starting tag operations. We 2947 * "toggle" tagged queuing off then on 2948 * which causes the tag enable command delay 2949 * counter to come into effect. 2950 */ 2951 dev = path->device; 2952 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2953 || ((dev->inq_flags & SID_CmdQue) != 0 2954 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2955 struct ccb_trans_settings cts; 2956 2957 memset(&cts, 0, sizeof(cts)); 2958 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2959 cts.protocol = PROTO_SCSI; 2960 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2961 cts.transport = XPORT_UNSPECIFIED; 2962 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2963 cts.proto_specific.scsi.flags = 0; 2964 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2965 scsi_set_transfer_settings(&cts, path, 2966 /*async_update*/TRUE); 2967 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2968 scsi_set_transfer_settings(&cts, path, 2969 /*async_update*/TRUE); 2970 } 2971 } 2972 2973 /* 2974 * Handle any per-device event notifications that require action by the XPT. 2975 */ 2976 static void 2977 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2978 struct cam_ed *device, void *async_arg) 2979 { 2980 cam_status status; 2981 struct cam_path newpath; 2982 2983 /* 2984 * We only need to handle events for real devices. 2985 */ 2986 if (target->target_id == CAM_TARGET_WILDCARD 2987 || device->lun_id == CAM_LUN_WILDCARD) 2988 return; 2989 2990 /* 2991 * We need our own path with wildcards expanded to 2992 * handle certain types of events. 2993 */ 2994 if ((async_code == AC_SENT_BDR) 2995 || (async_code == AC_BUS_RESET) 2996 || (async_code == AC_INQ_CHANGED)) 2997 status = xpt_compile_path(&newpath, NULL, 2998 bus->path_id, 2999 target->target_id, 3000 device->lun_id); 3001 else 3002 status = CAM_REQ_CMP_ERR; 3003 3004 if (status == CAM_REQ_CMP) { 3005 /* 3006 * Allow transfer negotiation to occur in a 3007 * tag free environment and after settle delay. 3008 */ 3009 if (async_code == AC_SENT_BDR 3010 || async_code == AC_BUS_RESET) { 3011 cam_freeze_devq(&newpath); 3012 cam_release_devq(&newpath, 3013 RELSIM_RELEASE_AFTER_TIMEOUT, 3014 /*reduction*/0, 3015 /*timeout*/scsi_delay, 3016 /*getcount_only*/0); 3017 scsi_toggle_tags(&newpath); 3018 } 3019 3020 if (async_code == AC_INQ_CHANGED) { 3021 /* 3022 * We've sent a start unit command, or 3023 * something similar to a device that 3024 * may have caused its inquiry data to 3025 * change. So we re-scan the device to 3026 * refresh the inquiry data for it. 3027 */ 3028 scsi_scan_lun(newpath.periph, &newpath, 3029 CAM_EXPECT_INQ_CHANGE, NULL); 3030 } 3031 xpt_release_path(&newpath); 3032 } else if (async_code == AC_LOST_DEVICE && 3033 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3034 device->flags |= CAM_DEV_UNCONFIGURED; 3035 xpt_release_device(device); 3036 } else if (async_code == AC_TRANSFER_NEG) { 3037 struct ccb_trans_settings *settings; 3038 struct cam_path path; 3039 3040 settings = (struct ccb_trans_settings *)async_arg; 3041 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3042 device->lun_id); 3043 scsi_set_transfer_settings(settings, &path, 3044 /*async_update*/TRUE); 3045 xpt_release_path(&path); 3046 } 3047 } 3048 3049 static void 3050 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3051 { 3052 struct ccb_pathinq cpi; 3053 struct cam_path *path = periph->path; 3054 3055 cam_periph_assert(periph, MA_OWNED); 3056 3057 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3058 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3059 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3060 xpt_action((union ccb*)cts); 3061 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3062 return; 3063 3064 /* Ask the SIM for its base transfer speed */ 3065 memset(&cpi, 0, sizeof(cpi)); 3066 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3067 cpi.ccb_h.func_code = XPT_PATH_INQ; 3068 xpt_action((union ccb *)&cpi); 3069 3070 /* Report connection speed */ 3071 *speed = cpi.base_transfer_speed; 3072 *freq = 0; 3073 3074 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3075 struct ccb_trans_settings_spi *spi = 3076 &cts->xport_specific.spi; 3077 3078 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3079 && spi->sync_offset != 0) { 3080 *freq = scsi_calc_syncsrate(spi->sync_period); 3081 *speed = *freq; 3082 } 3083 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3084 *speed *= (0x01 << spi->bus_width); 3085 } 3086 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3087 struct ccb_trans_settings_fc *fc = 3088 &cts->xport_specific.fc; 3089 3090 if (fc->valid & CTS_FC_VALID_SPEED) 3091 *speed = fc->bitrate; 3092 } 3093 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3094 struct ccb_trans_settings_sas *sas = 3095 &cts->xport_specific.sas; 3096 3097 if (sas->valid & CTS_SAS_VALID_SPEED) 3098 *speed = sas->bitrate; 3099 } 3100 } 3101 3102 static void 3103 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3104 { 3105 struct ccb_trans_settings cts; 3106 u_int speed, freq, mb; 3107 3108 memset(&cts, 0, sizeof(cts)); 3109 _scsi_announce_periph(periph, &speed, &freq, &cts); 3110 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3111 return; 3112 3113 mb = speed / 1000; 3114 if (mb > 0) 3115 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3116 periph->periph_name, periph->unit_number, 3117 mb, speed % 1000); 3118 else 3119 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3120 periph->unit_number, speed); 3121 /* Report additional information about SPI connections */ 3122 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3123 struct ccb_trans_settings_spi *spi; 3124 3125 spi = &cts.xport_specific.spi; 3126 if (freq != 0) { 3127 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3128 freq % 1000, 3129 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3130 ? " DT" : "", 3131 spi->sync_offset); 3132 } 3133 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3134 && spi->bus_width > 0) { 3135 if (freq != 0) { 3136 sbuf_printf(sb, ", "); 3137 } else { 3138 sbuf_printf(sb, " ("); 3139 } 3140 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3141 } else if (freq != 0) { 3142 sbuf_printf(sb, ")"); 3143 } 3144 } 3145 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3146 struct ccb_trans_settings_fc *fc; 3147 3148 fc = &cts.xport_specific.fc; 3149 if (fc->valid & CTS_FC_VALID_WWNN) 3150 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3151 if (fc->valid & CTS_FC_VALID_WWPN) 3152 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3153 if (fc->valid & CTS_FC_VALID_PORT) 3154 sbuf_printf(sb, " PortID 0x%x", fc->port); 3155 } 3156 sbuf_printf(sb, "\n"); 3157 } 3158 3159 static void 3160 scsi_announce_periph(struct cam_periph *periph) 3161 { 3162 struct ccb_trans_settings cts; 3163 u_int speed, freq, mb; 3164 3165 memset(&cts, 0, sizeof(cts)); 3166 _scsi_announce_periph(periph, &speed, &freq, &cts); 3167 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3168 return; 3169 3170 mb = speed / 1000; 3171 if (mb > 0) 3172 printf("%s%d: %d.%03dMB/s transfers", 3173 periph->periph_name, periph->unit_number, 3174 mb, speed % 1000); 3175 else 3176 printf("%s%d: %dKB/s transfers", periph->periph_name, 3177 periph->unit_number, speed); 3178 /* Report additional information about SPI connections */ 3179 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3180 struct ccb_trans_settings_spi *spi; 3181 3182 spi = &cts.xport_specific.spi; 3183 if (freq != 0) { 3184 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3185 freq % 1000, 3186 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3187 ? " DT" : "", 3188 spi->sync_offset); 3189 } 3190 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3191 && spi->bus_width > 0) { 3192 if (freq != 0) { 3193 printf(", "); 3194 } else { 3195 printf(" ("); 3196 } 3197 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3198 } else if (freq != 0) { 3199 printf(")"); 3200 } 3201 } 3202 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3203 struct ccb_trans_settings_fc *fc; 3204 3205 fc = &cts.xport_specific.fc; 3206 if (fc->valid & CTS_FC_VALID_WWNN) 3207 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3208 if (fc->valid & CTS_FC_VALID_WWPN) 3209 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3210 if (fc->valid & CTS_FC_VALID_PORT) 3211 printf(" PortID 0x%x", fc->port); 3212 } 3213 printf("\n"); 3214 } 3215 3216 static void 3217 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3218 { 3219 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3220 } 3221 3222 static void 3223 scsi_proto_announce(struct cam_ed *device) 3224 { 3225 scsi_print_inquiry(&device->inq_data); 3226 } 3227 3228 static void 3229 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3230 { 3231 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3232 } 3233 3234 static void 3235 scsi_proto_denounce(struct cam_ed *device) 3236 { 3237 scsi_print_inquiry_short(&device->inq_data); 3238 } 3239 3240 static void 3241 scsi_proto_debug_out(union ccb *ccb) 3242 { 3243 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3244 struct cam_ed *device; 3245 3246 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3247 return; 3248 3249 device = ccb->ccb_h.path->device; 3250 CAM_DEBUG(ccb->ccb_h.path, 3251 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3252 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3253 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3254 } 3255