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 probe_flags flags; 193 MD5_CTX context; 194 u_int8_t digest[16]; 195 struct cam_periph *periph; 196 } probe_softc; 197 198 static const char quantum[] = "QUANTUM"; 199 static const char sony[] = "SONY"; 200 static const char west_digital[] = "WDIGTL"; 201 static const char samsung[] = "SAMSUNG"; 202 static const char seagate[] = "SEAGATE"; 203 static const char microp[] = "MICROP"; 204 205 static struct scsi_quirk_entry scsi_quirk_table[] = 206 { 207 { 208 /* Reports QUEUE FULL for temporary resource shortages */ 209 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 210 /*quirks*/0, /*mintags*/24, /*maxtags*/32 211 }, 212 { 213 /* Reports QUEUE FULL for temporary resource shortages */ 214 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 215 /*quirks*/0, /*mintags*/24, /*maxtags*/32 216 }, 217 { 218 /* Reports QUEUE FULL for temporary resource shortages */ 219 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 220 /*quirks*/0, /*mintags*/24, /*maxtags*/32 221 }, 222 { 223 /* Broken tagged queuing drive */ 224 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 225 /*quirks*/0, /*mintags*/0, /*maxtags*/0 226 }, 227 { 228 /* Broken tagged queuing drive */ 229 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 230 /*quirks*/0, /*mintags*/0, /*maxtags*/0 231 }, 232 { 233 /* Broken tagged queuing drive */ 234 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 235 /*quirks*/0, /*mintags*/0, /*maxtags*/0 236 }, 237 { 238 /* 239 * Unfortunately, the Quantum Atlas III has the same 240 * problem as the Atlas II drives above. 241 * Reported by: "Johan Granlund" <johan@granlund.nu> 242 * 243 * For future reference, the drive with the problem was: 244 * QUANTUM QM39100TD-SW N1B0 245 * 246 * It's possible that Quantum will fix the problem in later 247 * firmware revisions. If that happens, the quirk entry 248 * will need to be made specific to the firmware revisions 249 * with the problem. 250 * 251 */ 252 /* Reports QUEUE FULL for temporary resource shortages */ 253 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 254 /*quirks*/0, /*mintags*/24, /*maxtags*/32 255 }, 256 { 257 /* 258 * 18 Gig Atlas III, same problem as the 9G version. 259 * Reported by: Andre Albsmeier 260 * <andre.albsmeier@mchp.siemens.de> 261 * 262 * For future reference, the drive with the problem was: 263 * QUANTUM QM318000TD-S N491 264 */ 265 /* Reports QUEUE FULL for temporary resource shortages */ 266 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 267 /*quirks*/0, /*mintags*/24, /*maxtags*/32 268 }, 269 { 270 /* 271 * Broken tagged queuing drive 272 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 273 * and: Martin Renters <martin@tdc.on.ca> 274 */ 275 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 276 /*quirks*/0, /*mintags*/0, /*maxtags*/0 277 }, 278 /* 279 * The Seagate Medalist Pro drives have very poor write 280 * performance with anything more than 2 tags. 281 * 282 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 283 * Drive: <SEAGATE ST36530N 1444> 284 * 285 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 286 * Drive: <SEAGATE ST34520W 1281> 287 * 288 * No one has actually reported that the 9G version 289 * (ST39140*) of the Medalist Pro has the same problem, but 290 * we're assuming that it does because the 4G and 6.5G 291 * versions of the drive are broken. 292 */ 293 { 294 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 295 /*quirks*/0, /*mintags*/2, /*maxtags*/2 296 }, 297 { 298 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 299 /*quirks*/0, /*mintags*/2, /*maxtags*/2 300 }, 301 { 302 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 303 /*quirks*/0, /*mintags*/2, /*maxtags*/2 304 }, 305 { 306 /* 307 * Experiences command timeouts under load with a 308 * tag count higher than 55. 309 */ 310 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 311 /*quirks*/0, /*mintags*/2, /*maxtags*/55 312 }, 313 { 314 /* 315 * Slow when tagged queueing is enabled. Write performance 316 * steadily drops off with more and more concurrent 317 * transactions. Best sequential write performance with 318 * tagged queueing turned off and write caching turned on. 319 * 320 * PR: kern/10398 321 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 322 * Drive: DCAS-34330 w/ "S65A" firmware. 323 * 324 * The drive with the problem had the "S65A" firmware 325 * revision, and has also been reported (by Stephen J. 326 * Roznowski <sjr@home.net>) for a drive with the "S61A" 327 * firmware revision. 328 * 329 * Although no one has reported problems with the 2 gig 330 * version of the DCAS drive, the assumption is that it 331 * has the same problems as the 4 gig version. Therefore 332 * this quirk entries disables tagged queueing for all 333 * DCAS drives. 334 */ 335 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 336 /*quirks*/0, /*mintags*/0, /*maxtags*/0 337 }, 338 { 339 /* Broken tagged queuing drive */ 340 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 341 /*quirks*/0, /*mintags*/0, /*maxtags*/0 342 }, 343 { 344 /* Broken tagged queuing drive */ 345 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 346 /*quirks*/0, /*mintags*/0, /*maxtags*/0 347 }, 348 { 349 /* This does not support other than LUN 0 */ 350 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 351 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 352 }, 353 { 354 /* 355 * Broken tagged queuing drive. 356 * Submitted by: 357 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 358 * in PR kern/9535 359 */ 360 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 361 /*quirks*/0, /*mintags*/0, /*maxtags*/0 362 }, 363 { 364 /* 365 * Slow when tagged queueing is enabled. (1.5MB/sec versus 366 * 8MB/sec.) 367 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 368 * Best performance with these drives is achieved with 369 * tagged queueing turned off, and write caching turned on. 370 */ 371 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 372 /*quirks*/0, /*mintags*/0, /*maxtags*/0 373 }, 374 { 375 /* 376 * Slow when tagged queueing is enabled. (1.5MB/sec versus 377 * 8MB/sec.) 378 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 379 * Best performance with these drives is achieved with 380 * tagged queueing turned off, and write caching turned on. 381 */ 382 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 383 /*quirks*/0, /*mintags*/0, /*maxtags*/0 384 }, 385 { 386 /* 387 * Doesn't handle queue full condition correctly, 388 * so we need to limit maxtags to what the device 389 * can handle instead of determining this automatically. 390 */ 391 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 392 /*quirks*/0, /*mintags*/2, /*maxtags*/32 393 }, 394 { 395 /* Really only one LUN */ 396 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 397 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 398 }, 399 { 400 /* I can't believe we need a quirk for DPT volumes. */ 401 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 402 CAM_QUIRK_NOLUNS, 403 /*mintags*/0, /*maxtags*/255 404 }, 405 { 406 /* 407 * Many Sony CDROM drives don't like multi-LUN probing. 408 */ 409 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 410 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 411 }, 412 { 413 /* 414 * This drive doesn't like multiple LUN probing. 415 * Submitted by: Parag Patel <parag@cgt.com> 416 */ 417 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 418 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 419 }, 420 { 421 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 422 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 423 }, 424 { 425 /* 426 * The 8200 doesn't like multi-lun probing, and probably 427 * don't like serial number requests either. 428 */ 429 { 430 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 431 "EXB-8200*", "*" 432 }, 433 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 434 }, 435 { 436 /* 437 * Let's try the same as above, but for a drive that says 438 * it's an IPL-6860 but is actually an EXB 8200. 439 */ 440 { 441 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 442 "IPL-6860*", "*" 443 }, 444 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 445 }, 446 { 447 /* 448 * These Hitachi drives don't like multi-lun probing. 449 * The PR submitter has a DK319H, but says that the Linux 450 * kernel has a similar work-around for the DK312 and DK314, 451 * so all DK31* drives are quirked here. 452 * PR: misc/18793 453 * Submitted by: Paul Haddad <paul@pth.com> 454 */ 455 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 456 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 457 }, 458 { 459 /* 460 * The Hitachi CJ series with J8A8 firmware apparently has 461 * problems with tagged commands. 462 * PR: 23536 463 * Reported by: amagai@nue.org 464 */ 465 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 466 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 467 }, 468 { 469 /* 470 * These are the large storage arrays. 471 * Submitted by: William Carrel <william.carrel@infospace.com> 472 */ 473 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 474 CAM_QUIRK_HILUNS, 2, 1024 475 }, 476 { 477 /* 478 * This old revision of the TDC3600 is also SCSI-1, and 479 * hangs upon serial number probing. 480 */ 481 { 482 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 483 " TDC 3600", "U07:" 484 }, 485 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 486 }, 487 { 488 /* 489 * Would repond to all LUNs if asked for. 490 */ 491 { 492 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 493 "CP150", "*" 494 }, 495 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 496 }, 497 { 498 /* 499 * Would repond to all LUNs if asked for. 500 */ 501 { 502 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 503 "96X2*", "*" 504 }, 505 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 506 }, 507 { 508 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 509 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 510 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 511 }, 512 { 513 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 514 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 515 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 516 }, 517 { 518 /* TeraSolutions special settings for TRC-22 RAID */ 519 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 520 /*quirks*/0, /*mintags*/55, /*maxtags*/255 521 }, 522 { 523 /* Veritas Storage Appliance */ 524 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 525 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 526 }, 527 { 528 /* 529 * Would respond to all LUNs. Device type and removable 530 * flag are jumper-selectable. 531 */ 532 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 533 "Tahiti 1", "*" 534 }, 535 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 536 }, 537 { 538 /* EasyRAID E5A aka. areca ARC-6010 */ 539 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 540 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 541 }, 542 { 543 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 544 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 545 }, 546 { 547 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Garmin", "*", "*" }, 548 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 549 }, 550 { 551 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "STORAGE DEVICE*", "120?" }, 552 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 553 }, 554 { 555 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic", "MassStorageClass", "1533" }, 556 CAM_QUIRK_NORPTLUNS, /*mintags*/2, /*maxtags*/255 557 }, 558 { 559 /* Default tagged queuing parameters for all devices */ 560 { 561 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 562 /*vendor*/"*", /*product*/"*", /*revision*/"*" 563 }, 564 /*quirks*/0, /*mintags*/2, /*maxtags*/255 565 }, 566 }; 567 568 static cam_status proberegister(struct cam_periph *periph, 569 void *arg); 570 static void probeschedule(struct cam_periph *probe_periph); 571 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 572 static void proberequestdefaultnegotiation(struct cam_periph *periph); 573 static int proberequestbackoff(struct cam_periph *periph, 574 struct cam_ed *device); 575 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 576 static void probe_purge_old(struct cam_path *path, 577 struct scsi_report_luns_data *new, 578 probe_flags flags); 579 static void probecleanup(struct cam_periph *periph); 580 static void scsi_find_quirk(struct cam_ed *device); 581 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 582 static void scsi_scan_lun(struct cam_periph *periph, 583 struct cam_path *path, cam_flags flags, 584 union ccb *ccb); 585 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 586 static struct cam_ed * 587 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 588 lun_id_t lun_id); 589 static void scsi_devise_transport(struct cam_path *path); 590 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 591 struct cam_path *path, 592 int async_update); 593 static void scsi_toggle_tags(struct cam_path *path); 594 static void scsi_dev_async(u_int32_t async_code, 595 struct cam_eb *bus, 596 struct cam_et *target, 597 struct cam_ed *device, 598 void *async_arg); 599 static void scsi_action(union ccb *start_ccb); 600 static void scsi_announce_periph(struct cam_periph *periph); 601 static void scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb); 602 static void scsi_proto_announce(struct cam_ed *device); 603 static void scsi_proto_announce_sbuf(struct cam_ed *device, 604 struct sbuf *sb); 605 static void scsi_proto_denounce(struct cam_ed *device); 606 static void scsi_proto_denounce_sbuf(struct cam_ed *device, 607 struct sbuf *sb); 608 static void scsi_proto_debug_out(union ccb *ccb); 609 static void _scsi_announce_periph(struct cam_periph *, u_int *, u_int *, struct ccb_trans_settings *); 610 611 static struct xpt_xport_ops scsi_xport_ops = { 612 .alloc_device = scsi_alloc_device, 613 .action = scsi_action, 614 .async = scsi_dev_async, 615 .announce = scsi_announce_periph, 616 .announce_sbuf = scsi_announce_periph_sbuf, 617 }; 618 #define SCSI_XPT_XPORT(x, X) \ 619 static struct xpt_xport scsi_xport_ ## x = { \ 620 .xport = XPORT_ ## X, \ 621 .name = #x, \ 622 .ops = &scsi_xport_ops, \ 623 }; \ 624 CAM_XPT_XPORT(scsi_xport_ ## x); 625 626 SCSI_XPT_XPORT(spi, SPI); 627 SCSI_XPT_XPORT(sas, SAS); 628 SCSI_XPT_XPORT(fc, FC); 629 SCSI_XPT_XPORT(usb, USB); 630 SCSI_XPT_XPORT(iscsi, ISCSI); 631 SCSI_XPT_XPORT(srp, SRP); 632 SCSI_XPT_XPORT(ppb, PPB); 633 634 #undef SCSI_XPORT_XPORT 635 636 static struct xpt_proto_ops scsi_proto_ops = { 637 .announce = scsi_proto_announce, 638 .announce_sbuf = scsi_proto_announce_sbuf, 639 .denounce = scsi_proto_denounce, 640 .denounce_sbuf = scsi_proto_denounce_sbuf, 641 .debug_out = scsi_proto_debug_out, 642 }; 643 static struct xpt_proto scsi_proto = { 644 .proto = PROTO_SCSI, 645 .name = "scsi", 646 .ops = &scsi_proto_ops, 647 }; 648 CAM_XPT_PROTO(scsi_proto); 649 650 static void 651 probe_periph_init(void) 652 { 653 } 654 655 static cam_status 656 proberegister(struct cam_periph *periph, void *arg) 657 { 658 union ccb *request_ccb; /* CCB representing the probe request */ 659 probe_softc *softc; 660 661 request_ccb = (union ccb *)arg; 662 if (request_ccb == NULL) { 663 printf("proberegister: no probe CCB, " 664 "can't register device\n"); 665 return(CAM_REQ_CMP_ERR); 666 } 667 668 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 669 670 if (softc == NULL) { 671 printf("proberegister: Unable to probe new device. " 672 "Unable to allocate softc\n"); 673 return(CAM_REQ_CMP_ERR); 674 } 675 TAILQ_INIT(&softc->request_ccbs); 676 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 677 periph_links.tqe); 678 softc->flags = 0; 679 periph->softc = softc; 680 softc->periph = periph; 681 softc->action = PROBE_INVALID; 682 if (cam_periph_acquire(periph) != 0) 683 return (CAM_REQ_CMP_ERR); 684 685 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n")); 686 scsi_devise_transport(periph->path); 687 688 /* 689 * Ensure we've waited at least a bus settle 690 * delay before attempting to probe the device. 691 * For HBAs that don't do bus resets, this won't make a difference. 692 */ 693 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 694 scsi_delay); 695 probeschedule(periph); 696 return(CAM_REQ_CMP); 697 } 698 699 static void 700 probeschedule(struct cam_periph *periph) 701 { 702 struct ccb_pathinq cpi; 703 union ccb *ccb; 704 probe_softc *softc; 705 706 softc = (probe_softc *)periph->softc; 707 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 708 709 xpt_path_inq(&cpi, periph->path); 710 711 /* 712 * If a device has gone away and another device, or the same one, 713 * is back in the same place, it should have a unit attention 714 * condition pending. It will not report the unit attention in 715 * response to an inquiry, which may leave invalid transfer 716 * negotiations in effect. The TUR will reveal the unit attention 717 * condition. Only send the TUR for lun 0, since some devices 718 * will get confused by commands other than inquiry to non-existent 719 * luns. If you think a device has gone away start your scan from 720 * lun 0. This will insure that any bogus transfer settings are 721 * invalidated. 722 * 723 * If we haven't seen the device before and the controller supports 724 * some kind of transfer negotiation, negotiate with the first 725 * sent command if no bus reset was performed at startup. This 726 * ensures that the device is not confused by transfer negotiation 727 * settings left over by loader or BIOS action. 728 */ 729 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 730 && (ccb->ccb_h.target_lun == 0)) { 731 PROBE_SET_ACTION(softc, PROBE_TUR); 732 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 733 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 734 proberequestdefaultnegotiation(periph); 735 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 736 } else { 737 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 738 } 739 740 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 741 softc->flags |= PROBE_NO_ANNOUNCE; 742 else 743 softc->flags &= ~PROBE_NO_ANNOUNCE; 744 745 if (cpi.hba_misc & PIM_EXTLUNS) 746 softc->flags |= PROBE_EXTLUN; 747 else 748 softc->flags &= ~PROBE_EXTLUN; 749 750 xpt_schedule(periph, CAM_PRIORITY_XPT); 751 } 752 753 static void 754 probestart(struct cam_periph *periph, union ccb *start_ccb) 755 { 756 /* Probe the device that our peripheral driver points to */ 757 struct ccb_scsiio *csio; 758 probe_softc *softc; 759 760 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 761 762 softc = (probe_softc *)periph->softc; 763 csio = &start_ccb->csio; 764 again: 765 766 switch (softc->action) { 767 case PROBE_TUR: 768 case PROBE_TUR_FOR_NEGOTIATION: 769 case PROBE_DV_EXIT: 770 { 771 scsi_test_unit_ready(csio, 772 /*retries*/4, 773 probedone, 774 MSG_SIMPLE_Q_TAG, 775 SSD_FULL_SIZE, 776 /*timeout*/60000); 777 break; 778 } 779 case PROBE_INQUIRY: 780 case PROBE_FULL_INQUIRY: 781 case PROBE_INQUIRY_BASIC_DV1: 782 case PROBE_INQUIRY_BASIC_DV2: 783 { 784 u_int inquiry_len; 785 struct scsi_inquiry_data *inq_buf; 786 787 inq_buf = &periph->path->device->inq_data; 788 789 /* 790 * If the device is currently configured, we calculate an 791 * MD5 checksum of the inquiry data, and if the serial number 792 * length is greater than 0, add the serial number data 793 * into the checksum as well. Once the inquiry and the 794 * serial number check finish, we attempt to figure out 795 * whether we still have the same device. 796 */ 797 if (((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 798 && ((softc->flags & PROBE_INQUIRY_CKSUM) == 0)) { 799 MD5Init(&softc->context); 800 MD5Update(&softc->context, (unsigned char *)inq_buf, 801 sizeof(struct scsi_inquiry_data)); 802 softc->flags |= PROBE_INQUIRY_CKSUM; 803 if (periph->path->device->serial_num_len > 0) { 804 MD5Update(&softc->context, 805 periph->path->device->serial_num, 806 periph->path->device->serial_num_len); 807 softc->flags |= PROBE_SERIAL_CKSUM; 808 } 809 MD5Final(softc->digest, &softc->context); 810 } 811 812 if (softc->action == PROBE_INQUIRY) 813 inquiry_len = SHORT_INQUIRY_LENGTH; 814 else 815 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 816 817 /* 818 * Some parallel SCSI devices fail to send an 819 * ignore wide residue message when dealing with 820 * odd length inquiry requests. Round up to be 821 * safe. 822 */ 823 inquiry_len = roundup2(inquiry_len, 2); 824 825 if (softc->action == PROBE_INQUIRY_BASIC_DV1 826 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 827 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 828 } 829 if (inq_buf == NULL) { 830 xpt_print(periph->path, "malloc failure- skipping Basic" 831 "Domain Validation\n"); 832 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 833 scsi_test_unit_ready(csio, 834 /*retries*/4, 835 probedone, 836 MSG_SIMPLE_Q_TAG, 837 SSD_FULL_SIZE, 838 /*timeout*/60000); 839 break; 840 } 841 scsi_inquiry(csio, 842 /*retries*/4, 843 probedone, 844 MSG_SIMPLE_Q_TAG, 845 (u_int8_t *)inq_buf, 846 inquiry_len, 847 /*evpd*/FALSE, 848 /*page_code*/0, 849 SSD_MIN_SIZE, 850 /*timeout*/60 * 1000); 851 break; 852 } 853 case PROBE_REPORT_LUNS: 854 { 855 void *rp; 856 857 rp = malloc(periph->path->target->rpl_size, 858 M_CAMXPT, M_NOWAIT | M_ZERO); 859 if (rp == NULL) { 860 struct scsi_inquiry_data *inq_buf; 861 inq_buf = &periph->path->device->inq_data; 862 xpt_print(periph->path, 863 "Unable to alloc report luns storage\n"); 864 if (INQ_DATA_TQ_ENABLED(inq_buf)) 865 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 866 else 867 PROBE_SET_ACTION(softc, 868 PROBE_SUPPORTED_VPD_LIST); 869 goto again; 870 } 871 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 872 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 873 SSD_FULL_SIZE, 60000); break; 874 break; 875 } 876 case PROBE_MODE_SENSE: 877 { 878 void *mode_buf; 879 int mode_buf_len; 880 881 mode_buf_len = sizeof(struct scsi_mode_header_6) 882 + sizeof(struct scsi_mode_blk_desc) 883 + sizeof(struct scsi_control_page); 884 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 885 if (mode_buf != NULL) { 886 scsi_mode_sense(csio, 887 /*retries*/4, 888 probedone, 889 MSG_SIMPLE_Q_TAG, 890 /*dbd*/FALSE, 891 SMS_PAGE_CTRL_CURRENT, 892 SMS_CONTROL_MODE_PAGE, 893 mode_buf, 894 mode_buf_len, 895 SSD_FULL_SIZE, 896 /*timeout*/60000); 897 break; 898 } 899 xpt_print(periph->path, "Unable to mode sense control page - " 900 "malloc failure\n"); 901 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 902 } 903 /* FALLTHROUGH */ 904 case PROBE_SUPPORTED_VPD_LIST: 905 { 906 struct scsi_vpd_supported_page_list *vpd_list; 907 struct cam_ed *device; 908 909 vpd_list = NULL; 910 device = periph->path->device; 911 912 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 913 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 914 M_NOWAIT | M_ZERO); 915 916 if (vpd_list != NULL) { 917 scsi_inquiry(csio, 918 /*retries*/4, 919 probedone, 920 MSG_SIMPLE_Q_TAG, 921 (u_int8_t *)vpd_list, 922 sizeof(*vpd_list), 923 /*evpd*/TRUE, 924 SVPD_SUPPORTED_PAGE_LIST, 925 SSD_MIN_SIZE, 926 /*timeout*/60 * 1000); 927 break; 928 } 929 done: 930 /* 931 * We'll have to do without, let our probedone 932 * routine finish up for us. 933 */ 934 start_ccb->csio.data_ptr = NULL; 935 cam_freeze_devq(periph->path); 936 cam_periph_doacquire(periph); 937 probedone(periph, start_ccb); 938 return; 939 } 940 case PROBE_DEVICE_ID: 941 { 942 struct scsi_vpd_device_id *devid; 943 944 devid = NULL; 945 if (scsi_vpd_supported_page(periph, SVPD_DEVICE_ID)) 946 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 947 M_NOWAIT | M_ZERO); 948 949 if (devid != NULL) { 950 scsi_inquiry(csio, 951 /*retries*/4, 952 probedone, 953 MSG_SIMPLE_Q_TAG, 954 (uint8_t *)devid, 955 SVPD_DEVICE_ID_MAX_SIZE, 956 /*evpd*/TRUE, 957 SVPD_DEVICE_ID, 958 SSD_MIN_SIZE, 959 /*timeout*/60 * 1000); 960 break; 961 } 962 goto done; 963 } 964 case PROBE_EXTENDED_INQUIRY: 965 { 966 struct scsi_vpd_extended_inquiry_data *ext_inq; 967 968 ext_inq = NULL; 969 if (scsi_vpd_supported_page(periph, SVPD_EXTENDED_INQUIRY_DATA)) 970 ext_inq = malloc(sizeof(*ext_inq), M_CAMXPT, 971 M_NOWAIT | M_ZERO); 972 973 if (ext_inq != NULL) { 974 scsi_inquiry(csio, 975 /*retries*/4, 976 probedone, 977 MSG_SIMPLE_Q_TAG, 978 (uint8_t *)ext_inq, 979 sizeof(*ext_inq), 980 /*evpd*/TRUE, 981 SVPD_EXTENDED_INQUIRY_DATA, 982 SSD_MIN_SIZE, 983 /*timeout*/60 * 1000); 984 break; 985 } 986 /* 987 * We'll have to do without, let our probedone 988 * routine finish up for us. 989 */ 990 goto done; 991 } 992 case PROBE_SERIAL_NUM: 993 { 994 struct scsi_vpd_unit_serial_number *serial_buf; 995 struct cam_ed* device; 996 997 serial_buf = NULL; 998 device = periph->path->device; 999 if (device->serial_num != NULL) { 1000 free(device->serial_num, M_CAMXPT); 1001 device->serial_num = NULL; 1002 device->serial_num_len = 0; 1003 } 1004 1005 if (scsi_vpd_supported_page(periph, SVPD_UNIT_SERIAL_NUMBER)) 1006 serial_buf = (struct scsi_vpd_unit_serial_number *) 1007 malloc(sizeof(*serial_buf), M_CAMXPT, 1008 M_NOWAIT|M_ZERO); 1009 1010 if (serial_buf != NULL) { 1011 scsi_inquiry(csio, 1012 /*retries*/4, 1013 probedone, 1014 MSG_SIMPLE_Q_TAG, 1015 (u_int8_t *)serial_buf, 1016 sizeof(*serial_buf), 1017 /*evpd*/TRUE, 1018 SVPD_UNIT_SERIAL_NUMBER, 1019 SSD_MIN_SIZE, 1020 /*timeout*/60 * 1000); 1021 break; 1022 } 1023 goto done; 1024 } 1025 default: 1026 panic("probestart: invalid action state 0x%x\n", softc->action); 1027 } 1028 start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE; 1029 cam_periph_doacquire(periph); 1030 xpt_action(start_ccb); 1031 } 1032 1033 static void 1034 proberequestdefaultnegotiation(struct cam_periph *periph) 1035 { 1036 struct ccb_trans_settings cts; 1037 1038 memset(&cts, 0, sizeof(cts)); 1039 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1040 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1041 cts.type = CTS_TYPE_USER_SETTINGS; 1042 xpt_action((union ccb *)&cts); 1043 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1044 return; 1045 } 1046 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1047 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1048 xpt_action((union ccb *)&cts); 1049 } 1050 1051 /* 1052 * Backoff Negotiation Code- only pertinent for SPI devices. 1053 */ 1054 static int 1055 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1056 { 1057 struct ccb_trans_settings cts; 1058 struct ccb_trans_settings_spi *spi; 1059 1060 memset(&cts, 0, sizeof (cts)); 1061 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1062 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1063 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1064 xpt_action((union ccb *)&cts); 1065 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1066 if (bootverbose) { 1067 xpt_print(periph->path, 1068 "failed to get current device settings\n"); 1069 } 1070 return (0); 1071 } 1072 if (cts.transport != XPORT_SPI) { 1073 if (bootverbose) { 1074 xpt_print(periph->path, "not SPI transport\n"); 1075 } 1076 return (0); 1077 } 1078 spi = &cts.xport_specific.spi; 1079 1080 /* 1081 * We cannot renegotiate sync rate if we don't have one. 1082 */ 1083 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1084 if (bootverbose) { 1085 xpt_print(periph->path, "no sync rate known\n"); 1086 } 1087 return (0); 1088 } 1089 1090 /* 1091 * We'll assert that we don't have to touch PPR options- the 1092 * SIM will see what we do with period and offset and adjust 1093 * the PPR options as appropriate. 1094 */ 1095 1096 /* 1097 * A sync rate with unknown or zero offset is nonsensical. 1098 * A sync period of zero means Async. 1099 */ 1100 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1101 || spi->sync_offset == 0 || spi->sync_period == 0) { 1102 if (bootverbose) { 1103 xpt_print(periph->path, "no sync rate available\n"); 1104 } 1105 return (0); 1106 } 1107 1108 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1109 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1110 ("hit async: giving up on DV\n")); 1111 return (0); 1112 } 1113 1114 /* 1115 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1116 * We don't try to remember 'last' settings to see if the SIM actually 1117 * gets into the speed we want to set. We check on the SIM telling 1118 * us that a requested speed is bad, but otherwise don't try and 1119 * check the speed due to the asynchronous and handshake nature 1120 * of speed setting. 1121 */ 1122 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1123 for (;;) { 1124 spi->sync_period++; 1125 if (spi->sync_period >= 0xf) { 1126 spi->sync_period = 0; 1127 spi->sync_offset = 0; 1128 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1129 ("setting to async for DV\n")); 1130 /* 1131 * Once we hit async, we don't want to try 1132 * any more settings. 1133 */ 1134 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1135 } else if (bootverbose) { 1136 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1137 ("DV: period 0x%x\n", spi->sync_period)); 1138 printf("setting period to 0x%x\n", spi->sync_period); 1139 } 1140 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1141 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1142 xpt_action((union ccb *)&cts); 1143 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) { 1144 break; 1145 } 1146 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1147 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1148 if (spi->sync_period == 0) { 1149 return (0); 1150 } 1151 } 1152 return (1); 1153 } 1154 1155 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1156 1157 static void 1158 probedone(struct cam_periph *periph, union ccb *done_ccb) 1159 { 1160 probe_softc *softc; 1161 struct cam_path *path; 1162 struct scsi_inquiry_data *inq_buf; 1163 u_int32_t priority; 1164 1165 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1166 1167 softc = (probe_softc *)periph->softc; 1168 path = done_ccb->ccb_h.path; 1169 priority = done_ccb->ccb_h.pinfo.priority; 1170 cam_periph_assert(periph, MA_OWNED); 1171 1172 switch (softc->action) { 1173 case PROBE_TUR: 1174 { 1175 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1176 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT) == 1177 ERESTART) { 1178 outr: 1179 /* Drop freeze taken due to CAM_DEV_QFREEZE */ 1180 cam_release_devq(path, 0, 0, 0, FALSE); 1181 return; 1182 } 1183 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1184 /* Don't wedge the queue */ 1185 xpt_release_devq(done_ccb->ccb_h.path, 1186 /*count*/1, 1187 /*run_queue*/TRUE); 1188 } 1189 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1190 xpt_release_ccb(done_ccb); 1191 xpt_schedule(periph, priority); 1192 out: 1193 /* Drop freeze taken due to CAM_DEV_QFREEZE and release. */ 1194 cam_release_devq(path, 0, 0, 0, FALSE); 1195 cam_periph_release_locked(periph); 1196 return; 1197 } 1198 case PROBE_INQUIRY: 1199 case PROBE_FULL_INQUIRY: 1200 { 1201 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1202 u_int8_t periph_qual; 1203 1204 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1205 scsi_find_quirk(path->device); 1206 inq_buf = &path->device->inq_data; 1207 1208 periph_qual = SID_QUAL(inq_buf); 1209 1210 if (periph_qual == SID_QUAL_LU_CONNECTED || 1211 periph_qual == SID_QUAL_LU_OFFLINE) { 1212 /* 1213 * We conservatively request only 1214 * SHORT_INQUIRY_LEN bytes of inquiry 1215 * information during our first try 1216 * at sending an INQUIRY. If the device 1217 * has more information to give, 1218 * perform a second request specifying 1219 * the amount of information the device 1220 * is willing to give. 1221 */ 1222 if (softc->action == PROBE_INQUIRY 1223 && SID_ADDITIONAL_LENGTH(inq_buf) 1224 > SHORT_INQUIRY_LENGTH) { 1225 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1226 xpt_release_ccb(done_ccb); 1227 xpt_schedule(periph, priority); 1228 goto out; 1229 } 1230 1231 scsi_devise_transport(path); 1232 1233 if (path->device->lun_id == 0 && 1234 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1235 (SCSI_QUIRK(path->device)->quirks & 1236 CAM_QUIRK_NORPTLUNS) == 0) { 1237 PROBE_SET_ACTION(softc, 1238 PROBE_REPORT_LUNS); 1239 /* 1240 * Start with room for *one* lun. 1241 */ 1242 periph->path->target->rpl_size = 16; 1243 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1244 PROBE_SET_ACTION(softc, 1245 PROBE_MODE_SENSE); 1246 else 1247 PROBE_SET_ACTION(softc, 1248 PROBE_SUPPORTED_VPD_LIST); 1249 1250 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1251 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1252 xpt_acquire_device(path->device); 1253 } 1254 xpt_release_ccb(done_ccb); 1255 xpt_schedule(periph, priority); 1256 goto out; 1257 } else if (path->device->lun_id == 0 && 1258 SID_ANSI_REV(inq_buf) >= SCSI_REV_SPC2 && 1259 (SCSI_QUIRK(path->device)->quirks & 1260 CAM_QUIRK_NORPTLUNS) == 0) { 1261 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1262 periph->path->target->rpl_size = 16; 1263 xpt_release_ccb(done_ccb); 1264 xpt_schedule(periph, priority); 1265 goto out; 1266 } 1267 } else if (cam_periph_error(done_ccb, 0, 1268 done_ccb->ccb_h.target_lun > 0 1269 ? SF_RETRY_UA|SF_QUIET_IR 1270 : SF_RETRY_UA) == ERESTART) { 1271 goto outr; 1272 } else { 1273 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1274 /* Don't wedge the queue */ 1275 xpt_release_devq(done_ccb->ccb_h.path, 1276 /*count*/1, /*run_queue*/TRUE); 1277 } 1278 path->device->flags &= ~CAM_DEV_INQUIRY_DATA_VALID; 1279 } 1280 /* 1281 * If we get to this point, we got an error status back 1282 * from the inquiry and the error status doesn't require 1283 * automatically retrying the command. Therefore, the 1284 * inquiry failed. If we had inquiry information before 1285 * for this device, but this latest inquiry command failed, 1286 * the device has probably gone away. If this device isn't 1287 * already marked unconfigured, notify the peripheral 1288 * drivers that this device is no more. 1289 */ 1290 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1291 /* Send the async notification. */ 1292 xpt_async(AC_LOST_DEVICE, path, NULL); 1293 PROBE_SET_ACTION(softc, PROBE_INVALID); 1294 1295 xpt_release_ccb(done_ccb); 1296 break; 1297 } 1298 case PROBE_REPORT_LUNS: 1299 { 1300 struct ccb_scsiio *csio; 1301 struct scsi_report_luns_data *lp; 1302 u_int nlun, maxlun; 1303 1304 csio = &done_ccb->csio; 1305 1306 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1307 nlun = scsi_4btoul(lp->length) / 8; 1308 maxlun = (csio->dxfer_len / 8) - 1; 1309 1310 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1311 if (cam_periph_error(done_ccb, 0, 1312 done_ccb->ccb_h.target_lun > 0 ? 1313 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA) == 1314 ERESTART) { 1315 goto outr; 1316 } 1317 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1318 xpt_release_devq(done_ccb->ccb_h.path, 1, 1319 TRUE); 1320 } 1321 free(lp, M_CAMXPT); 1322 lp = NULL; 1323 } else if (nlun > maxlun) { 1324 /* 1325 * Reallocate and retry to cover all luns 1326 */ 1327 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1328 ("Probe: reallocating REPORT_LUNS for %u luns\n", 1329 nlun)); 1330 free(lp, M_CAMXPT); 1331 path->target->rpl_size = (nlun << 3) + 8; 1332 xpt_release_ccb(done_ccb); 1333 xpt_schedule(periph, priority); 1334 goto out; 1335 } else if (nlun == 0) { 1336 /* 1337 * If there don't appear to be any luns, bail. 1338 */ 1339 free(lp, M_CAMXPT); 1340 lp = NULL; 1341 } else { 1342 lun_id_t lun; 1343 int idx; 1344 1345 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1346 ("Probe: %u lun(s) reported\n", nlun)); 1347 1348 CAM_GET_LUN(lp, 0, lun); 1349 /* 1350 * If the first lun is not lun 0, then either there 1351 * is no lun 0 in the list, or the list is unsorted. 1352 */ 1353 if (lun != 0) { 1354 for (idx = 0; idx < nlun; idx++) { 1355 CAM_GET_LUN(lp, idx, lun); 1356 if (lun == 0) { 1357 break; 1358 } 1359 } 1360 if (idx != nlun) { 1361 uint8_t tlun[8]; 1362 memcpy(tlun, 1363 lp->luns[0].lundata, 8); 1364 memcpy(lp->luns[0].lundata, 1365 lp->luns[idx].lundata, 8); 1366 memcpy(lp->luns[idx].lundata, 1367 tlun, 8); 1368 CAM_DEBUG(path, CAM_DEBUG_PROBE, 1369 ("lun 0 in position %u\n", idx)); 1370 } 1371 } 1372 /* 1373 * If we have an old lun list, We can either 1374 * retest luns that appear to have been dropped, 1375 * or just nuke them. We'll opt for the latter. 1376 * This function will also install the new list 1377 * in the target structure. 1378 */ 1379 probe_purge_old(path, lp, softc->flags); 1380 lp = NULL; 1381 } 1382 /* The processing above should either exit via a `goto 1383 * out` or leave the `lp` variable `NULL` and (if 1384 * applicable) `free()` the storage to which it had 1385 * pointed. Assert here that is the case. 1386 */ 1387 KASSERT(lp == NULL, ("%s: lp is not NULL", __func__)); 1388 inq_buf = &path->device->inq_data; 1389 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID && 1390 (SID_QUAL(inq_buf) == SID_QUAL_LU_CONNECTED || 1391 SID_QUAL(inq_buf) == SID_QUAL_LU_OFFLINE)) { 1392 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1393 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1394 else 1395 PROBE_SET_ACTION(softc, 1396 PROBE_SUPPORTED_VPD_LIST); 1397 xpt_release_ccb(done_ccb); 1398 xpt_schedule(periph, priority); 1399 goto out; 1400 } 1401 PROBE_SET_ACTION(softc, PROBE_INVALID); 1402 xpt_release_ccb(done_ccb); 1403 break; 1404 } 1405 case PROBE_MODE_SENSE: 1406 { 1407 struct ccb_scsiio *csio; 1408 struct scsi_mode_header_6 *mode_hdr; 1409 1410 csio = &done_ccb->csio; 1411 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1412 if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) { 1413 struct scsi_control_page *page; 1414 u_int8_t *offset; 1415 1416 offset = ((u_int8_t *)&mode_hdr[1]) 1417 + mode_hdr->blk_desc_len; 1418 page = (struct scsi_control_page *)offset; 1419 path->device->queue_flags = page->queue_flags; 1420 } else if (cam_periph_error(done_ccb, 0, 1421 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1422 goto outr; 1423 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1424 /* Don't wedge the queue */ 1425 xpt_release_devq(done_ccb->ccb_h.path, 1426 /*count*/1, /*run_queue*/TRUE); 1427 } 1428 xpt_release_ccb(done_ccb); 1429 free(mode_hdr, M_CAMXPT); 1430 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1431 xpt_schedule(periph, priority); 1432 goto out; 1433 } 1434 case PROBE_SUPPORTED_VPD_LIST: 1435 { 1436 struct ccb_scsiio *csio; 1437 struct scsi_vpd_supported_page_list *page_list; 1438 1439 csio = &done_ccb->csio; 1440 page_list = 1441 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1442 1443 if (path->device->supported_vpds != NULL) { 1444 free(path->device->supported_vpds, M_CAMXPT); 1445 path->device->supported_vpds = NULL; 1446 path->device->supported_vpds_len = 0; 1447 } 1448 1449 if (page_list == NULL) { 1450 /* 1451 * Don't process the command as it was never sent 1452 */ 1453 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1454 /* Got vpd list */ 1455 path->device->supported_vpds_len = page_list->length + 1456 SVPD_SUPPORTED_PAGES_HDR_LEN; 1457 path->device->supported_vpds = (uint8_t *)page_list; 1458 xpt_release_ccb(done_ccb); 1459 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1460 xpt_schedule(periph, priority); 1461 goto out; 1462 } else if (cam_periph_error(done_ccb, 0, 1463 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1464 goto outr; 1465 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1466 /* Don't wedge the queue */ 1467 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1468 /*run_queue*/TRUE); 1469 } 1470 1471 if (page_list) 1472 free(page_list, M_CAMXPT); 1473 /* No VPDs available, skip to device check. */ 1474 csio->data_ptr = NULL; 1475 goto probe_device_check; 1476 } 1477 case PROBE_DEVICE_ID: 1478 { 1479 struct scsi_vpd_device_id *devid; 1480 struct ccb_scsiio *csio; 1481 uint32_t length = 0; 1482 1483 csio = &done_ccb->csio; 1484 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1485 1486 /* Clean up from previous instance of this device */ 1487 if (path->device->device_id != NULL) { 1488 path->device->device_id_len = 0; 1489 free(path->device->device_id, M_CAMXPT); 1490 path->device->device_id = NULL; 1491 } 1492 1493 if (devid == NULL) { 1494 /* Don't process the command as it was never sent */ 1495 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1496 length = scsi_2btoul(devid->length); 1497 if (length != 0) { 1498 /* 1499 * NB: device_id_len is actual response 1500 * size, not buffer size. 1501 */ 1502 path->device->device_id_len = length + 1503 SVPD_DEVICE_ID_HDR_LEN; 1504 path->device->device_id = (uint8_t *)devid; 1505 } 1506 } else if (cam_periph_error(done_ccb, 0, 1507 SF_RETRY_UA) == ERESTART) { 1508 goto outr; 1509 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1510 /* Don't wedge the queue */ 1511 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1512 /*run_queue*/TRUE); 1513 } 1514 1515 /* Free the device id space if we don't use it */ 1516 if (devid && length == 0) 1517 free(devid, M_CAMXPT); 1518 xpt_release_ccb(done_ccb); 1519 PROBE_SET_ACTION(softc, PROBE_EXTENDED_INQUIRY); 1520 xpt_schedule(periph, priority); 1521 goto out; 1522 } 1523 case PROBE_EXTENDED_INQUIRY: { 1524 struct scsi_vpd_extended_inquiry_data *ext_inq; 1525 struct ccb_scsiio *csio; 1526 int32_t length = 0; 1527 1528 csio = &done_ccb->csio; 1529 ext_inq = (struct scsi_vpd_extended_inquiry_data *) 1530 csio->data_ptr; 1531 if (path->device->ext_inq != NULL) { 1532 path->device->ext_inq_len = 0; 1533 free(path->device->ext_inq, M_CAMXPT); 1534 path->device->ext_inq = NULL; 1535 } 1536 1537 if (ext_inq == NULL) { 1538 /* Don't process the command as it was never sent */ 1539 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1540 length = scsi_2btoul(ext_inq->page_length) + 1541 __offsetof(struct scsi_vpd_extended_inquiry_data, 1542 flags1); 1543 length = min(length, sizeof(*ext_inq)); 1544 length -= csio->resid; 1545 if (length > 0) { 1546 path->device->ext_inq_len = length; 1547 path->device->ext_inq = (uint8_t *)ext_inq; 1548 } 1549 } else if (cam_periph_error(done_ccb, 0, SF_RETRY_UA) == 1550 ERESTART) { 1551 goto outr; 1552 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1553 /* Don't wedge the queue */ 1554 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1555 /*run_queue*/TRUE); 1556 } 1557 1558 /* Free the device id space if we don't use it */ 1559 if (ext_inq && length <= 0) 1560 free(ext_inq, M_CAMXPT); 1561 xpt_release_ccb(done_ccb); 1562 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1563 xpt_schedule(periph, priority); 1564 goto out; 1565 } 1566 1567 probe_device_check: 1568 case PROBE_SERIAL_NUM: 1569 { 1570 struct ccb_scsiio *csio; 1571 struct scsi_vpd_unit_serial_number *serial_buf; 1572 u_int32_t priority; 1573 int changed; 1574 int have_serialnum; 1575 1576 changed = 1; 1577 have_serialnum = 0; 1578 csio = &done_ccb->csio; 1579 priority = done_ccb->ccb_h.pinfo.priority; 1580 serial_buf = 1581 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1582 1583 if (serial_buf == NULL) { 1584 /* 1585 * Don't process the command as it was never sent 1586 */ 1587 } else if (cam_ccb_status(done_ccb) == CAM_REQ_CMP 1588 && (serial_buf->length > 0)) { 1589 have_serialnum = 1; 1590 path->device->serial_num = 1591 (u_int8_t *)malloc((serial_buf->length + 1), 1592 M_CAMXPT, M_NOWAIT); 1593 if (path->device->serial_num != NULL) { 1594 int start, slen; 1595 1596 start = strspn(serial_buf->serial_num, " "); 1597 slen = serial_buf->length - start; 1598 if (slen <= 0) { 1599 /* 1600 * SPC5r05 says that an all-space serial 1601 * number means no product serial number 1602 * is available 1603 */ 1604 slen = 0; 1605 } 1606 memcpy(path->device->serial_num, 1607 &serial_buf->serial_num[start], slen); 1608 path->device->serial_num_len = slen; 1609 path->device->serial_num[slen] = '\0'; 1610 } 1611 } else if (cam_periph_error(done_ccb, 0, 1612 SF_RETRY_UA|SF_NO_PRINT) == ERESTART) { 1613 goto outr; 1614 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1615 /* Don't wedge the queue */ 1616 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1617 /*run_queue*/TRUE); 1618 } 1619 1620 /* 1621 * Let's see if we have seen this device before. 1622 */ 1623 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1624 MD5_CTX context; 1625 u_int8_t digest[16]; 1626 1627 MD5Init(&context); 1628 1629 MD5Update(&context, 1630 (unsigned char *)&path->device->inq_data, 1631 sizeof(struct scsi_inquiry_data)); 1632 1633 if (have_serialnum) 1634 MD5Update(&context, path->device->serial_num, 1635 path->device->serial_num_len); 1636 1637 MD5Final(digest, &context); 1638 if (bcmp(softc->digest, digest, 16) == 0) 1639 changed = 0; 1640 1641 /* 1642 * XXX Do we need to do a TUR in order to ensure 1643 * that the device really hasn't changed??? 1644 */ 1645 if ((changed != 0) 1646 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1647 xpt_async(AC_LOST_DEVICE, path, NULL); 1648 } 1649 if (serial_buf != NULL) 1650 free(serial_buf, M_CAMXPT); 1651 1652 if (changed != 0) { 1653 /* 1654 * Now that we have all the necessary 1655 * information to safely perform transfer 1656 * negotiations... Controllers don't perform 1657 * any negotiation or tagged queuing until 1658 * after the first XPT_SET_TRAN_SETTINGS ccb is 1659 * received. So, on a new device, just retrieve 1660 * the user settings, and set them as the current 1661 * settings to set the device up. 1662 */ 1663 proberequestdefaultnegotiation(periph); 1664 xpt_release_ccb(done_ccb); 1665 1666 /* 1667 * Perform a TUR to allow the controller to 1668 * perform any necessary transfer negotiation. 1669 */ 1670 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1671 xpt_schedule(periph, priority); 1672 goto out; 1673 } 1674 xpt_release_ccb(done_ccb); 1675 break; 1676 } 1677 case PROBE_TUR_FOR_NEGOTIATION: 1678 case PROBE_DV_EXIT: 1679 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1680 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1681 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1682 goto outr; 1683 } 1684 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1685 /* Don't wedge the queue */ 1686 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1687 /*run_queue*/TRUE); 1688 } 1689 /* 1690 * Do Domain Validation for lun 0 on devices that claim 1691 * to support Synchronous Transfer modes. 1692 */ 1693 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1694 && done_ccb->ccb_h.target_lun == 0 1695 && (path->device->inq_data.flags & SID_Sync) != 0 1696 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1697 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1698 ("Begin Domain Validation\n")); 1699 path->device->flags |= CAM_DEV_IN_DV; 1700 xpt_release_ccb(done_ccb); 1701 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1702 xpt_schedule(periph, priority); 1703 goto out; 1704 } 1705 if (softc->action == PROBE_DV_EXIT) { 1706 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1707 ("Leave Domain Validation\n")); 1708 } 1709 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1710 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1711 xpt_acquire_device(path->device); 1712 } 1713 path->device->flags &= 1714 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1715 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1716 /* Inform the XPT that a new device has been found */ 1717 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1718 xpt_action(done_ccb); 1719 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1720 done_ccb); 1721 } 1722 PROBE_SET_ACTION(softc, PROBE_DONE); 1723 xpt_release_ccb(done_ccb); 1724 break; 1725 case PROBE_INQUIRY_BASIC_DV1: 1726 case PROBE_INQUIRY_BASIC_DV2: 1727 { 1728 struct scsi_inquiry_data *nbuf; 1729 struct ccb_scsiio *csio; 1730 1731 if (cam_ccb_status(done_ccb) != CAM_REQ_CMP) { 1732 if (cam_periph_error(done_ccb, 0, SF_NO_PRINT | 1733 SF_NO_RECOVERY | SF_NO_RETRY) == ERESTART) 1734 goto outr; 1735 } 1736 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1737 /* Don't wedge the queue */ 1738 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1739 /*run_queue*/TRUE); 1740 } 1741 csio = &done_ccb->csio; 1742 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1743 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1744 xpt_print(path, 1745 "inquiry data fails comparison at DV%d step\n", 1746 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1747 if (proberequestbackoff(periph, path->device)) { 1748 path->device->flags &= ~CAM_DEV_IN_DV; 1749 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1750 } else { 1751 /* give up */ 1752 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1753 } 1754 free(nbuf, M_CAMXPT); 1755 xpt_release_ccb(done_ccb); 1756 xpt_schedule(periph, priority); 1757 goto out; 1758 } 1759 free(nbuf, M_CAMXPT); 1760 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1761 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1762 xpt_release_ccb(done_ccb); 1763 xpt_schedule(periph, priority); 1764 goto out; 1765 } 1766 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1767 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, 1768 ("Leave Domain Validation Successfully\n")); 1769 } 1770 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1771 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1772 xpt_acquire_device(path->device); 1773 } 1774 path->device->flags &= 1775 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1776 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1777 /* Inform the XPT that a new device has been found */ 1778 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1779 xpt_action(done_ccb); 1780 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1781 done_ccb); 1782 } 1783 PROBE_SET_ACTION(softc, PROBE_DONE); 1784 xpt_release_ccb(done_ccb); 1785 break; 1786 } 1787 default: 1788 panic("probedone: invalid action state 0x%x\n", softc->action); 1789 } 1790 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1791 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1792 done_ccb->ccb_h.status = CAM_REQ_CMP; 1793 xpt_done(done_ccb); 1794 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1795 CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe completed\n")); 1796 /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */ 1797 cam_release_devq(path, 0, 0, 0, FALSE); 1798 cam_periph_release_locked(periph); 1799 cam_periph_invalidate(periph); 1800 cam_periph_release_locked(periph); 1801 } else { 1802 probeschedule(periph); 1803 goto out; 1804 } 1805 } 1806 1807 static void 1808 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new, 1809 probe_flags flags) 1810 { 1811 struct cam_path *tp; 1812 struct scsi_report_luns_data *old; 1813 u_int idx1, idx2, nlun_old, nlun_new; 1814 lun_id_t this_lun; 1815 u_int8_t *ol, *nl; 1816 1817 if (path->target == NULL) { 1818 return; 1819 } 1820 mtx_lock(&path->target->luns_mtx); 1821 old = path->target->luns; 1822 path->target->luns = new; 1823 mtx_unlock(&path->target->luns_mtx); 1824 if (old == NULL) 1825 return; 1826 nlun_old = scsi_4btoul(old->length) / 8; 1827 nlun_new = scsi_4btoul(new->length) / 8; 1828 1829 /* 1830 * We are not going to assume sorted lists. Deal. 1831 */ 1832 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1833 ol = old->luns[idx1].lundata; 1834 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1835 nl = new->luns[idx2].lundata; 1836 if (memcmp(nl, ol, 8) == 0) { 1837 break; 1838 } 1839 } 1840 if (idx2 < nlun_new) { 1841 continue; 1842 } 1843 /* 1844 * An 'old' item not in the 'new' list. 1845 * Nuke it. Except that if it is lun 0, 1846 * that would be what the probe state 1847 * machine is currently working on, 1848 * so we won't do that. 1849 */ 1850 CAM_GET_LUN(old, idx1, this_lun); 1851 if (this_lun == 0) { 1852 continue; 1853 } 1854 1855 /* 1856 * We also cannot nuke it if it is 1857 * not in a lun format we understand 1858 * and replace the LUN with a "simple" LUN 1859 * if that is all the HBA supports. 1860 */ 1861 if (!(flags & PROBE_EXTLUN)) { 1862 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) 1863 continue; 1864 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1865 } 1866 1867 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1868 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1869 xpt_async(AC_LOST_DEVICE, tp, NULL); 1870 xpt_free_path(tp); 1871 } 1872 } 1873 free(old, M_CAMXPT); 1874 } 1875 1876 static void 1877 probecleanup(struct cam_periph *periph) 1878 { 1879 free(periph->softc, M_CAMXPT); 1880 } 1881 1882 static void 1883 scsi_find_quirk(struct cam_ed *device) 1884 { 1885 struct scsi_quirk_entry *quirk; 1886 caddr_t match; 1887 1888 match = cam_quirkmatch((caddr_t)&device->inq_data, 1889 (caddr_t)scsi_quirk_table, 1890 nitems(scsi_quirk_table), 1891 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1892 1893 if (match == NULL) 1894 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1895 1896 quirk = (struct scsi_quirk_entry *)match; 1897 device->quirk = quirk; 1898 device->mintags = quirk->mintags; 1899 device->maxtags = quirk->maxtags; 1900 } 1901 1902 static int 1903 sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1904 { 1905 int error, val; 1906 1907 val = cam_srch_hi; 1908 error = sysctl_handle_int(oidp, &val, 0, req); 1909 if (error != 0 || req->newptr == NULL) 1910 return (error); 1911 if (val == 0 || val == 1) { 1912 cam_srch_hi = val; 1913 return (0); 1914 } else { 1915 return (EINVAL); 1916 } 1917 } 1918 1919 typedef struct { 1920 union ccb *request_ccb; 1921 struct ccb_pathinq *cpi; 1922 int counter; 1923 int lunindex[0]; 1924 } scsi_scan_bus_info; 1925 1926 /* 1927 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1928 * As the scan progresses, scsi_scan_bus is used as the 1929 * callback on completion function. 1930 */ 1931 static void 1932 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1933 { 1934 struct mtx *mtx; 1935 1936 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1937 ("scsi_scan_bus\n")); 1938 switch (request_ccb->ccb_h.func_code) { 1939 case XPT_SCAN_BUS: 1940 case XPT_SCAN_TGT: 1941 { 1942 scsi_scan_bus_info *scan_info; 1943 union ccb *work_ccb, *reset_ccb; 1944 struct cam_path *path; 1945 u_int i; 1946 u_int low_target, max_target; 1947 u_int initiator_id; 1948 1949 /* Find out the characteristics of the bus */ 1950 work_ccb = xpt_alloc_ccb_nowait(); 1951 if (work_ccb == NULL) { 1952 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1953 xpt_done(request_ccb); 1954 return; 1955 } 1956 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1957 request_ccb->ccb_h.pinfo.priority); 1958 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1959 xpt_action(work_ccb); 1960 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1961 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1962 xpt_free_ccb(work_ccb); 1963 xpt_done(request_ccb); 1964 return; 1965 } 1966 1967 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1968 /* 1969 * Can't scan the bus on an adapter that 1970 * cannot perform the initiator role. 1971 */ 1972 request_ccb->ccb_h.status = CAM_REQ_CMP; 1973 xpt_free_ccb(work_ccb); 1974 xpt_done(request_ccb); 1975 return; 1976 } 1977 1978 /* We may need to reset bus first, if we haven't done it yet. */ 1979 if ((work_ccb->cpi.hba_inquiry & 1980 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1981 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1982 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset) && 1983 (reset_ccb = xpt_alloc_ccb_nowait()) != NULL) { 1984 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1985 CAM_PRIORITY_NONE); 1986 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1987 xpt_action(reset_ccb); 1988 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1989 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1990 xpt_free_ccb(reset_ccb); 1991 xpt_free_ccb(work_ccb); 1992 xpt_done(request_ccb); 1993 return; 1994 } 1995 xpt_free_ccb(reset_ccb); 1996 } 1997 1998 /* Save some state for use while we probe for devices */ 1999 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 2000 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 2001 if (scan_info == NULL) { 2002 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2003 xpt_free_ccb(work_ccb); 2004 xpt_done(request_ccb); 2005 return; 2006 } 2007 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 2008 ("SCAN start for %p\n", scan_info)); 2009 scan_info->request_ccb = request_ccb; 2010 scan_info->cpi = &work_ccb->cpi; 2011 2012 /* Cache on our stack so we can work asynchronously */ 2013 max_target = scan_info->cpi->max_target; 2014 low_target = 0; 2015 initiator_id = scan_info->cpi->initiator_id; 2016 2017 /* 2018 * We can scan all targets in parallel, or do it sequentially. 2019 */ 2020 2021 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2022 max_target = low_target = request_ccb->ccb_h.target_id; 2023 scan_info->counter = 0; 2024 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2025 max_target = 0; 2026 scan_info->counter = 0; 2027 } else { 2028 scan_info->counter = scan_info->cpi->max_target + 1; 2029 if (scan_info->cpi->initiator_id < scan_info->counter) { 2030 scan_info->counter--; 2031 } 2032 } 2033 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2034 mtx_unlock(mtx); 2035 2036 for (i = low_target; i <= max_target; i++) { 2037 cam_status status; 2038 if (i == initiator_id) 2039 continue; 2040 2041 status = xpt_create_path(&path, NULL, 2042 request_ccb->ccb_h.path_id, 2043 i, 0); 2044 if (status != CAM_REQ_CMP) { 2045 printf("scsi_scan_bus: xpt_create_path failed" 2046 " with status %#x, bus scan halted\n", 2047 status); 2048 free(scan_info, M_CAMXPT); 2049 request_ccb->ccb_h.status = status; 2050 xpt_free_ccb(work_ccb); 2051 xpt_done(request_ccb); 2052 break; 2053 } 2054 work_ccb = xpt_alloc_ccb_nowait(); 2055 if (work_ccb == NULL) { 2056 xpt_free_ccb((union ccb *)scan_info->cpi); 2057 free(scan_info, M_CAMXPT); 2058 xpt_free_path(path); 2059 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 2060 xpt_done(request_ccb); 2061 break; 2062 } 2063 xpt_setup_ccb(&work_ccb->ccb_h, path, 2064 request_ccb->ccb_h.pinfo.priority); 2065 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2066 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2067 work_ccb->ccb_h.flags |= CAM_UNLOCKED; 2068 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 2069 work_ccb->crcn.flags = request_ccb->crcn.flags; 2070 xpt_action(work_ccb); 2071 } 2072 2073 mtx_lock(mtx); 2074 break; 2075 } 2076 case XPT_SCAN_LUN: 2077 { 2078 cam_status status; 2079 struct cam_path *path, *oldpath; 2080 scsi_scan_bus_info *scan_info; 2081 struct cam_et *target; 2082 struct cam_ed *device, *nextdev; 2083 int next_target; 2084 path_id_t path_id; 2085 target_id_t target_id; 2086 lun_id_t lun_id; 2087 2088 oldpath = request_ccb->ccb_h.path; 2089 2090 status = cam_ccb_status(request_ccb); 2091 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2092 path_id = request_ccb->ccb_h.path_id; 2093 target_id = request_ccb->ccb_h.target_id; 2094 lun_id = request_ccb->ccb_h.target_lun; 2095 target = request_ccb->ccb_h.path->target; 2096 next_target = 1; 2097 2098 mtx = xpt_path_mtx(scan_info->request_ccb->ccb_h.path); 2099 mtx_lock(mtx); 2100 mtx_lock(&target->luns_mtx); 2101 if (target->luns) { 2102 lun_id_t first; 2103 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2104 2105 /* 2106 * Make sure we skip over lun 0 if it's the first member 2107 * of the list as we've actually just finished probing 2108 * it. 2109 */ 2110 CAM_GET_LUN(target->luns, 0, first); 2111 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2112 scan_info->lunindex[target_id]++; 2113 } 2114 2115 /* 2116 * Skip any LUNs that the HBA can't deal with. 2117 */ 2118 while (scan_info->lunindex[target_id] < nluns) { 2119 if (scan_info->cpi->hba_misc & PIM_EXTLUNS) { 2120 CAM_GET_LUN(target->luns, 2121 scan_info->lunindex[target_id], 2122 lun_id); 2123 break; 2124 } 2125 2126 if (CAM_CAN_GET_SIMPLE_LUN(target->luns, 2127 scan_info->lunindex[target_id])) { 2128 CAM_GET_SIMPLE_LUN(target->luns, 2129 scan_info->lunindex[target_id], 2130 lun_id); 2131 break; 2132 } 2133 2134 scan_info->lunindex[target_id]++; 2135 } 2136 2137 if (scan_info->lunindex[target_id] < nluns) { 2138 mtx_unlock(&target->luns_mtx); 2139 next_target = 0; 2140 CAM_DEBUG(request_ccb->ccb_h.path, 2141 CAM_DEBUG_PROBE, 2142 ("next lun to try at index %u is %jx\n", 2143 scan_info->lunindex[target_id], 2144 (uintmax_t)lun_id)); 2145 scan_info->lunindex[target_id]++; 2146 } else { 2147 mtx_unlock(&target->luns_mtx); 2148 /* We're done with scanning all luns. */ 2149 } 2150 } else { 2151 mtx_unlock(&target->luns_mtx); 2152 device = request_ccb->ccb_h.path->device; 2153 /* Continue sequential LUN scan if: */ 2154 /* -- we have more LUNs that need recheck */ 2155 mtx_lock(&target->bus->eb_mtx); 2156 nextdev = device; 2157 while ((nextdev = TAILQ_NEXT(nextdev, links)) != NULL) 2158 if ((nextdev->flags & CAM_DEV_UNCONFIGURED) == 0) 2159 break; 2160 mtx_unlock(&target->bus->eb_mtx); 2161 if (nextdev != NULL) { 2162 next_target = 0; 2163 /* -- stop if CAM_QUIRK_NOLUNS is set. */ 2164 } else if (SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOLUNS) { 2165 next_target = 1; 2166 /* -- this LUN is connected and its SCSI version 2167 * allows more LUNs. */ 2168 } else if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2169 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2170 CAN_SRCH_HI_DENSE(device)) 2171 next_target = 0; 2172 /* -- this LUN is disconnected, its SCSI version 2173 * allows more LUNs and we guess they may be. */ 2174 } else if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) { 2175 if (lun_id < (CAM_SCSI2_MAXLUN-1) || 2176 CAN_SRCH_HI_SPARSE(device)) 2177 next_target = 0; 2178 } 2179 if (next_target == 0) { 2180 lun_id++; 2181 if (lun_id > scan_info->cpi->max_lun) 2182 next_target = 1; 2183 } 2184 } 2185 2186 /* 2187 * Check to see if we scan any further luns. 2188 */ 2189 if (next_target) { 2190 int done; 2191 2192 /* 2193 * Free the current request path- we're done with it. 2194 */ 2195 xpt_free_path(oldpath); 2196 hop_again: 2197 done = 0; 2198 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2199 done = 1; 2200 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2201 scan_info->counter++; 2202 if (scan_info->counter == 2203 scan_info->cpi->initiator_id) { 2204 scan_info->counter++; 2205 } 2206 if (scan_info->counter >= 2207 scan_info->cpi->max_target+1) { 2208 done = 1; 2209 } 2210 } else { 2211 scan_info->counter--; 2212 if (scan_info->counter == 0) { 2213 done = 1; 2214 } 2215 } 2216 if (done) { 2217 mtx_unlock(mtx); 2218 xpt_free_ccb(request_ccb); 2219 xpt_free_ccb((union ccb *)scan_info->cpi); 2220 request_ccb = scan_info->request_ccb; 2221 CAM_DEBUG(request_ccb->ccb_h.path, 2222 CAM_DEBUG_TRACE, 2223 ("SCAN done for %p\n", scan_info)); 2224 free(scan_info, M_CAMXPT); 2225 request_ccb->ccb_h.status = CAM_REQ_CMP; 2226 xpt_done(request_ccb); 2227 break; 2228 } 2229 2230 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2231 mtx_unlock(mtx); 2232 xpt_free_ccb(request_ccb); 2233 break; 2234 } 2235 status = xpt_create_path(&path, NULL, 2236 scan_info->request_ccb->ccb_h.path_id, 2237 scan_info->counter, 0); 2238 if (status != CAM_REQ_CMP) { 2239 mtx_unlock(mtx); 2240 printf("scsi_scan_bus: xpt_create_path failed" 2241 " with status %#x, bus scan halted\n", 2242 status); 2243 xpt_free_ccb(request_ccb); 2244 xpt_free_ccb((union ccb *)scan_info->cpi); 2245 request_ccb = scan_info->request_ccb; 2246 free(scan_info, M_CAMXPT); 2247 request_ccb->ccb_h.status = status; 2248 xpt_done(request_ccb); 2249 break; 2250 } 2251 xpt_setup_ccb(&request_ccb->ccb_h, path, 2252 request_ccb->ccb_h.pinfo.priority); 2253 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2254 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2255 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2256 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2257 request_ccb->crcn.flags = 2258 scan_info->request_ccb->crcn.flags; 2259 } else { 2260 status = xpt_create_path(&path, NULL, 2261 path_id, target_id, lun_id); 2262 /* 2263 * Free the old request path- we're done with it. We 2264 * do this *after* creating the new path so that 2265 * we don't remove a target that has our lun list 2266 * in the case that lun 0 is not present. 2267 */ 2268 xpt_free_path(oldpath); 2269 if (status != CAM_REQ_CMP) { 2270 printf("scsi_scan_bus: xpt_create_path failed " 2271 "with status %#x, halting LUN scan\n", 2272 status); 2273 goto hop_again; 2274 } 2275 xpt_setup_ccb(&request_ccb->ccb_h, path, 2276 request_ccb->ccb_h.pinfo.priority); 2277 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2278 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2279 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2280 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2281 request_ccb->crcn.flags = 2282 scan_info->request_ccb->crcn.flags; 2283 } 2284 mtx_unlock(mtx); 2285 xpt_action(request_ccb); 2286 break; 2287 } 2288 default: 2289 break; 2290 } 2291 } 2292 2293 static void 2294 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2295 cam_flags flags, union ccb *request_ccb) 2296 { 2297 struct ccb_pathinq cpi; 2298 cam_status status; 2299 struct cam_path *new_path; 2300 struct cam_periph *old_periph; 2301 int lock; 2302 2303 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2304 2305 memset(&cpi, 0, sizeof(cpi)); 2306 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2307 cpi.ccb_h.func_code = XPT_PATH_INQ; 2308 xpt_action((union ccb *)&cpi); 2309 2310 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2311 if (request_ccb != NULL) { 2312 request_ccb->ccb_h.status = cpi.ccb_h.status; 2313 xpt_done(request_ccb); 2314 } 2315 return; 2316 } 2317 2318 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2319 /* 2320 * Can't scan the bus on an adapter that 2321 * cannot perform the initiator role. 2322 */ 2323 if (request_ccb != NULL) { 2324 request_ccb->ccb_h.status = CAM_REQ_CMP; 2325 xpt_done(request_ccb); 2326 } 2327 return; 2328 } 2329 2330 if (request_ccb == NULL) { 2331 request_ccb = xpt_alloc_ccb_nowait(); 2332 if (request_ccb == NULL) { 2333 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2334 "can't continue\n"); 2335 return; 2336 } 2337 status = xpt_create_path(&new_path, NULL, 2338 path->bus->path_id, 2339 path->target->target_id, 2340 path->device->lun_id); 2341 if (status != CAM_REQ_CMP) { 2342 xpt_print(path, "scsi_scan_lun: can't create path, " 2343 "can't continue\n"); 2344 xpt_free_ccb(request_ccb); 2345 return; 2346 } 2347 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2348 request_ccb->ccb_h.cbfcnp = xptscandone; 2349 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2350 request_ccb->ccb_h.flags |= CAM_UNLOCKED; 2351 request_ccb->crcn.flags = flags; 2352 } 2353 2354 lock = (xpt_path_owned(path) == 0); 2355 if (lock) 2356 xpt_path_lock(path); 2357 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2358 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) { 2359 probe_softc *softc; 2360 2361 softc = (probe_softc *)old_periph->softc; 2362 TAILQ_INSERT_TAIL(&softc->request_ccbs, 2363 &request_ccb->ccb_h, periph_links.tqe); 2364 } else { 2365 request_ccb->ccb_h.status = CAM_REQ_CMP_ERR; 2366 xpt_done(request_ccb); 2367 } 2368 } else { 2369 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2370 probestart, "probe", 2371 CAM_PERIPH_BIO, 2372 request_ccb->ccb_h.path, NULL, 0, 2373 request_ccb); 2374 2375 if (status != CAM_REQ_CMP) { 2376 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2377 "returned an error, can't continue probe\n"); 2378 request_ccb->ccb_h.status = status; 2379 xpt_done(request_ccb); 2380 } 2381 } 2382 if (lock) 2383 xpt_path_unlock(path); 2384 } 2385 2386 static void 2387 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2388 { 2389 2390 xpt_free_path(done_ccb->ccb_h.path); 2391 xpt_free_ccb(done_ccb); 2392 } 2393 2394 static struct cam_ed * 2395 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2396 { 2397 struct scsi_quirk_entry *quirk; 2398 struct cam_ed *device; 2399 2400 device = xpt_alloc_device(bus, target, lun_id); 2401 if (device == NULL) 2402 return (NULL); 2403 2404 /* 2405 * Take the default quirk entry until we have inquiry 2406 * data and can determine a better quirk to use. 2407 */ 2408 quirk = &scsi_quirk_table[nitems(scsi_quirk_table) - 1]; 2409 device->quirk = (void *)quirk; 2410 device->mintags = quirk->mintags; 2411 device->maxtags = quirk->maxtags; 2412 bzero(&device->inq_data, sizeof(device->inq_data)); 2413 device->inq_flags = 0; 2414 device->queue_flags = 0; 2415 device->serial_num = NULL; 2416 device->serial_num_len = 0; 2417 device->device_id = NULL; 2418 device->device_id_len = 0; 2419 device->supported_vpds = NULL; 2420 device->supported_vpds_len = 0; 2421 return (device); 2422 } 2423 2424 static void 2425 scsi_devise_transport(struct cam_path *path) 2426 { 2427 struct ccb_pathinq cpi; 2428 struct ccb_trans_settings cts; 2429 struct scsi_inquiry_data *inq_buf; 2430 2431 /* Get transport information from the SIM */ 2432 memset(&cpi, 0, sizeof(cpi)); 2433 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2434 cpi.ccb_h.func_code = XPT_PATH_INQ; 2435 xpt_action((union ccb *)&cpi); 2436 2437 inq_buf = NULL; 2438 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2439 inq_buf = &path->device->inq_data; 2440 path->device->protocol = PROTO_SCSI; 2441 path->device->protocol_version = 2442 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2443 path->device->transport = cpi.transport; 2444 path->device->transport_version = cpi.transport_version; 2445 2446 /* 2447 * Any device not using SPI3 features should 2448 * be considered SPI2 or lower. 2449 */ 2450 if (inq_buf != NULL) { 2451 if (path->device->transport == XPORT_SPI 2452 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2453 && path->device->transport_version > 2) 2454 path->device->transport_version = 2; 2455 } else { 2456 struct cam_ed* otherdev; 2457 2458 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2459 otherdev != NULL; 2460 otherdev = TAILQ_NEXT(otherdev, links)) { 2461 if (otherdev != path->device) 2462 break; 2463 } 2464 2465 if (otherdev != NULL) { 2466 /* 2467 * Initially assume the same versioning as 2468 * prior luns for this target. 2469 */ 2470 path->device->protocol_version = 2471 otherdev->protocol_version; 2472 path->device->transport_version = 2473 otherdev->transport_version; 2474 } else { 2475 /* Until we know better, opt for safety */ 2476 path->device->protocol_version = 2; 2477 if (path->device->transport == XPORT_SPI) 2478 path->device->transport_version = 2; 2479 else 2480 path->device->transport_version = 0; 2481 } 2482 } 2483 2484 /* 2485 * XXX 2486 * For a device compliant with SPC-2 we should be able 2487 * to determine the transport version supported by 2488 * scrutinizing the version descriptors in the 2489 * inquiry buffer. 2490 */ 2491 2492 /* Tell the controller what we think */ 2493 memset(&cts, 0, sizeof(cts)); 2494 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2495 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2496 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2497 cts.transport = path->device->transport; 2498 cts.transport_version = path->device->transport_version; 2499 cts.protocol = path->device->protocol; 2500 cts.protocol_version = path->device->protocol_version; 2501 cts.proto_specific.valid = 0; 2502 cts.xport_specific.valid = 0; 2503 xpt_action((union ccb *)&cts); 2504 } 2505 2506 static void 2507 scsi_dev_advinfo(union ccb *start_ccb) 2508 { 2509 struct cam_ed *device; 2510 struct ccb_dev_advinfo *cdai; 2511 off_t amt; 2512 2513 xpt_path_assert(start_ccb->ccb_h.path, MA_OWNED); 2514 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2515 device = start_ccb->ccb_h.path->device; 2516 cdai = &start_ccb->cdai; 2517 switch(cdai->buftype) { 2518 case CDAI_TYPE_SCSI_DEVID: 2519 if (cdai->flags & CDAI_FLAG_STORE) 2520 return; 2521 cdai->provsiz = device->device_id_len; 2522 if (device->device_id_len == 0) 2523 break; 2524 amt = device->device_id_len; 2525 if (cdai->provsiz > cdai->bufsiz) 2526 amt = cdai->bufsiz; 2527 memcpy(cdai->buf, device->device_id, amt); 2528 break; 2529 case CDAI_TYPE_SERIAL_NUM: 2530 if (cdai->flags & CDAI_FLAG_STORE) 2531 return; 2532 cdai->provsiz = device->serial_num_len; 2533 if (device->serial_num_len == 0) 2534 break; 2535 amt = device->serial_num_len; 2536 if (cdai->provsiz > cdai->bufsiz) 2537 amt = cdai->bufsiz; 2538 memcpy(cdai->buf, device->serial_num, amt); 2539 break; 2540 case CDAI_TYPE_PHYS_PATH: 2541 if (cdai->flags & CDAI_FLAG_STORE) { 2542 if (device->physpath != NULL) { 2543 free(device->physpath, M_CAMXPT); 2544 device->physpath = NULL; 2545 device->physpath_len = 0; 2546 } 2547 /* Clear existing buffer if zero length */ 2548 if (cdai->bufsiz == 0) 2549 break; 2550 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2551 if (device->physpath == NULL) { 2552 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2553 return; 2554 } 2555 device->physpath_len = cdai->bufsiz; 2556 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2557 } else { 2558 cdai->provsiz = device->physpath_len; 2559 if (device->physpath_len == 0) 2560 break; 2561 amt = device->physpath_len; 2562 if (cdai->provsiz > cdai->bufsiz) 2563 amt = cdai->bufsiz; 2564 memcpy(cdai->buf, device->physpath, amt); 2565 } 2566 break; 2567 case CDAI_TYPE_RCAPLONG: 2568 if (cdai->flags & CDAI_FLAG_STORE) { 2569 if (device->rcap_buf != NULL) { 2570 free(device->rcap_buf, M_CAMXPT); 2571 device->rcap_buf = NULL; 2572 } 2573 2574 device->rcap_len = cdai->bufsiz; 2575 /* Clear existing buffer if zero length */ 2576 if (cdai->bufsiz == 0) 2577 break; 2578 2579 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2580 M_NOWAIT); 2581 if (device->rcap_buf == NULL) { 2582 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2583 return; 2584 } 2585 2586 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2587 } else { 2588 cdai->provsiz = device->rcap_len; 2589 if (device->rcap_len == 0) 2590 break; 2591 amt = device->rcap_len; 2592 if (cdai->provsiz > cdai->bufsiz) 2593 amt = cdai->bufsiz; 2594 memcpy(cdai->buf, device->rcap_buf, amt); 2595 } 2596 break; 2597 case CDAI_TYPE_EXT_INQ: 2598 /* 2599 * We fetch extended inquiry data during probe, if 2600 * available. We don't allow changing it. 2601 */ 2602 if (cdai->flags & CDAI_FLAG_STORE) 2603 return; 2604 cdai->provsiz = device->ext_inq_len; 2605 if (device->ext_inq_len == 0) 2606 break; 2607 amt = device->ext_inq_len; 2608 if (cdai->provsiz > cdai->bufsiz) 2609 amt = cdai->bufsiz; 2610 memcpy(cdai->buf, device->ext_inq, amt); 2611 break; 2612 default: 2613 return; 2614 } 2615 start_ccb->ccb_h.status = CAM_REQ_CMP; 2616 2617 if (cdai->flags & CDAI_FLAG_STORE) { 2618 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2619 (void *)(uintptr_t)cdai->buftype); 2620 } 2621 } 2622 2623 static void 2624 scsi_action(union ccb *start_ccb) 2625 { 2626 2627 if (start_ccb->ccb_h.func_code != XPT_SCSI_IO) { 2628 #ifdef notyet 2629 KASSERT((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) == 0, 2630 ("%s: ccb %p, func_code %#x should not be allocated " 2631 "from UMA zone\n", 2632 __func__, start_ccb, start_ccb->ccb_h.func_code)); 2633 #else 2634 if ((start_ccb->ccb_h.alloc_flags & CAM_CCB_FROM_UMA) != 0) { 2635 printf("%s: ccb %p, func_code %#x should not be allocated " 2636 "from UMA zone\n", 2637 __func__, start_ccb, start_ccb->ccb_h.func_code); 2638 } 2639 #endif 2640 } 2641 2642 switch (start_ccb->ccb_h.func_code) { 2643 case XPT_SET_TRAN_SETTINGS: 2644 { 2645 scsi_set_transfer_settings(&start_ccb->cts, 2646 start_ccb->ccb_h.path, 2647 /*async_update*/FALSE); 2648 break; 2649 } 2650 case XPT_SCAN_BUS: 2651 case XPT_SCAN_TGT: 2652 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2653 break; 2654 case XPT_SCAN_LUN: 2655 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2656 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2657 start_ccb); 2658 break; 2659 case XPT_DEV_ADVINFO: 2660 { 2661 scsi_dev_advinfo(start_ccb); 2662 break; 2663 } 2664 default: 2665 xpt_action_default(start_ccb); 2666 break; 2667 } 2668 } 2669 2670 static void 2671 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_path *path, 2672 int async_update) 2673 { 2674 struct ccb_pathinq cpi; 2675 struct ccb_trans_settings cur_cts; 2676 struct ccb_trans_settings_scsi *scsi; 2677 struct ccb_trans_settings_scsi *cur_scsi; 2678 struct scsi_inquiry_data *inq_data; 2679 struct cam_ed *device; 2680 2681 if (path == NULL || (device = path->device) == NULL) { 2682 cts->ccb_h.status = CAM_PATH_INVALID; 2683 xpt_done((union ccb *)cts); 2684 return; 2685 } 2686 2687 if (cts->protocol == PROTO_UNKNOWN 2688 || cts->protocol == PROTO_UNSPECIFIED) { 2689 cts->protocol = device->protocol; 2690 cts->protocol_version = device->protocol_version; 2691 } 2692 2693 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2694 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2695 cts->protocol_version = device->protocol_version; 2696 2697 if (cts->protocol != device->protocol) { 2698 xpt_print(path, "Uninitialized Protocol %x:%x?\n", 2699 cts->protocol, device->protocol); 2700 cts->protocol = device->protocol; 2701 } 2702 2703 if (cts->protocol_version > device->protocol_version) { 2704 if (bootverbose) { 2705 xpt_print(path, "Down reving Protocol " 2706 "Version from %d to %d?\n", cts->protocol_version, 2707 device->protocol_version); 2708 } 2709 cts->protocol_version = device->protocol_version; 2710 } 2711 2712 if (cts->transport == XPORT_UNKNOWN 2713 || cts->transport == XPORT_UNSPECIFIED) { 2714 cts->transport = device->transport; 2715 cts->transport_version = device->transport_version; 2716 } 2717 2718 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2719 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2720 cts->transport_version = device->transport_version; 2721 2722 if (cts->transport != device->transport) { 2723 xpt_print(path, "Uninitialized Transport %x:%x?\n", 2724 cts->transport, device->transport); 2725 cts->transport = device->transport; 2726 } 2727 2728 if (cts->transport_version > device->transport_version) { 2729 if (bootverbose) { 2730 xpt_print(path, "Down reving Transport " 2731 "Version from %d to %d?\n", cts->transport_version, 2732 device->transport_version); 2733 } 2734 cts->transport_version = device->transport_version; 2735 } 2736 2737 /* 2738 * Nothing more of interest to do unless 2739 * this is a device connected via the 2740 * SCSI protocol. 2741 */ 2742 if (cts->protocol != PROTO_SCSI) { 2743 if (async_update == FALSE) 2744 xpt_action_default((union ccb *)cts); 2745 return; 2746 } 2747 2748 inq_data = &device->inq_data; 2749 scsi = &cts->proto_specific.scsi; 2750 memset(&cpi, 0, sizeof(cpi)); 2751 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2752 cpi.ccb_h.func_code = XPT_PATH_INQ; 2753 xpt_action((union ccb *)&cpi); 2754 2755 /* SCSI specific sanity checking */ 2756 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2757 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2758 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2759 || (device->mintags == 0)) { 2760 /* 2761 * Can't tag on hardware that doesn't support tags, 2762 * doesn't have it enabled, or has broken tag support. 2763 */ 2764 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2765 } 2766 2767 if (async_update == FALSE) { 2768 /* 2769 * Perform sanity checking against what the 2770 * controller and device can do. 2771 */ 2772 memset(&cur_cts, 0, sizeof(cur_cts)); 2773 xpt_setup_ccb(&cur_cts.ccb_h, path, CAM_PRIORITY_NONE); 2774 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2775 cur_cts.type = cts->type; 2776 xpt_action((union ccb *)&cur_cts); 2777 if (cam_ccb_status((union ccb *)&cur_cts) != CAM_REQ_CMP) { 2778 return; 2779 } 2780 cur_scsi = &cur_cts.proto_specific.scsi; 2781 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2782 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2783 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2784 } 2785 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2786 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2787 } 2788 2789 /* SPI specific sanity checking */ 2790 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2791 u_int spi3caps; 2792 struct ccb_trans_settings_spi *spi; 2793 struct ccb_trans_settings_spi *cur_spi; 2794 2795 spi = &cts->xport_specific.spi; 2796 2797 cur_spi = &cur_cts.xport_specific.spi; 2798 2799 /* Fill in any gaps in what the user gave us */ 2800 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2801 spi->sync_period = cur_spi->sync_period; 2802 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2803 spi->sync_period = 0; 2804 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2805 spi->sync_offset = cur_spi->sync_offset; 2806 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2807 spi->sync_offset = 0; 2808 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2809 spi->ppr_options = cur_spi->ppr_options; 2810 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2811 spi->ppr_options = 0; 2812 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2813 spi->bus_width = cur_spi->bus_width; 2814 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2815 spi->bus_width = 0; 2816 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2817 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2818 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2819 } 2820 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2821 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2822 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2823 && (inq_data->flags & SID_Sync) == 0 2824 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2825 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2826 /* Force async */ 2827 spi->sync_period = 0; 2828 spi->sync_offset = 0; 2829 } 2830 2831 switch (spi->bus_width) { 2832 case MSG_EXT_WDTR_BUS_32_BIT: 2833 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2834 || (inq_data->flags & SID_WBus32) != 0 2835 || cts->type == CTS_TYPE_USER_SETTINGS) 2836 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2837 break; 2838 /* Fall Through to 16-bit */ 2839 case MSG_EXT_WDTR_BUS_16_BIT: 2840 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2841 || (inq_data->flags & SID_WBus16) != 0 2842 || cts->type == CTS_TYPE_USER_SETTINGS) 2843 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2844 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2845 break; 2846 } 2847 /* Fall Through to 8-bit */ 2848 default: /* New bus width?? */ 2849 case MSG_EXT_WDTR_BUS_8_BIT: 2850 /* All targets can do this */ 2851 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2852 break; 2853 } 2854 2855 spi3caps = cpi.xport_specific.spi.ppr_options; 2856 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2857 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2858 spi3caps &= inq_data->spi3data; 2859 2860 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2861 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2862 2863 if ((spi3caps & SID_SPI_IUS) == 0) 2864 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2865 2866 if ((spi3caps & SID_SPI_QAS) == 0) 2867 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2868 2869 /* No SPI Transfer settings are allowed unless we are wide */ 2870 if (spi->bus_width == 0) 2871 spi->ppr_options = 0; 2872 2873 if ((spi->valid & CTS_SPI_VALID_DISC) 2874 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2875 /* 2876 * Can't tag queue without disconnection. 2877 */ 2878 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2879 scsi->valid |= CTS_SCSI_VALID_TQ; 2880 } 2881 2882 /* 2883 * If we are currently performing tagged transactions to 2884 * this device and want to change its negotiation parameters, 2885 * go non-tagged for a bit to give the controller a chance to 2886 * negotiate unhampered by tag messages. 2887 */ 2888 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2889 && (device->inq_flags & SID_CmdQue) != 0 2890 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2891 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2892 CTS_SPI_VALID_SYNC_OFFSET| 2893 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2894 scsi_toggle_tags(path); 2895 } 2896 2897 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2898 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2899 int device_tagenb; 2900 2901 /* 2902 * If we are transitioning from tags to no-tags or 2903 * vice-versa, we need to carefully freeze and restart 2904 * the queue so that we don't overlap tagged and non-tagged 2905 * commands. We also temporarily stop tags if there is 2906 * a change in transfer negotiation settings to allow 2907 * "tag-less" negotiation. 2908 */ 2909 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2910 || (device->inq_flags & SID_CmdQue) != 0) 2911 device_tagenb = TRUE; 2912 else 2913 device_tagenb = FALSE; 2914 2915 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2916 && device_tagenb == FALSE) 2917 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2918 && device_tagenb == TRUE)) { 2919 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2920 /* 2921 * Delay change to use tags until after a 2922 * few commands have gone to this device so 2923 * the controller has time to perform transfer 2924 * negotiations without tagged messages getting 2925 * in the way. 2926 */ 2927 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2928 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2929 } else { 2930 xpt_stop_tags(path); 2931 } 2932 } 2933 } 2934 if (async_update == FALSE) 2935 xpt_action_default((union ccb *)cts); 2936 } 2937 2938 static void 2939 scsi_toggle_tags(struct cam_path *path) 2940 { 2941 struct cam_ed *dev; 2942 2943 /* 2944 * Give controllers a chance to renegotiate 2945 * before starting tag operations. We 2946 * "toggle" tagged queuing off then on 2947 * which causes the tag enable command delay 2948 * counter to come into effect. 2949 */ 2950 dev = path->device; 2951 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2952 || ((dev->inq_flags & SID_CmdQue) != 0 2953 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2954 struct ccb_trans_settings cts; 2955 2956 memset(&cts, 0, sizeof(cts)); 2957 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2958 cts.protocol = PROTO_SCSI; 2959 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2960 cts.transport = XPORT_UNSPECIFIED; 2961 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2962 cts.proto_specific.scsi.flags = 0; 2963 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2964 scsi_set_transfer_settings(&cts, path, 2965 /*async_update*/TRUE); 2966 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2967 scsi_set_transfer_settings(&cts, path, 2968 /*async_update*/TRUE); 2969 } 2970 } 2971 2972 /* 2973 * Handle any per-device event notifications that require action by the XPT. 2974 */ 2975 static void 2976 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2977 struct cam_ed *device, void *async_arg) 2978 { 2979 cam_status status; 2980 struct cam_path newpath; 2981 2982 /* 2983 * We only need to handle events for real devices. 2984 */ 2985 if (target->target_id == CAM_TARGET_WILDCARD 2986 || device->lun_id == CAM_LUN_WILDCARD) 2987 return; 2988 2989 /* 2990 * We need our own path with wildcards expanded to 2991 * handle certain types of events. 2992 */ 2993 if ((async_code == AC_SENT_BDR) 2994 || (async_code == AC_BUS_RESET) 2995 || (async_code == AC_INQ_CHANGED)) 2996 status = xpt_compile_path(&newpath, NULL, 2997 bus->path_id, 2998 target->target_id, 2999 device->lun_id); 3000 else 3001 status = CAM_REQ_CMP_ERR; 3002 3003 if (status == CAM_REQ_CMP) { 3004 /* 3005 * Allow transfer negotiation to occur in a 3006 * tag free environment and after settle delay. 3007 */ 3008 if (async_code == AC_SENT_BDR 3009 || async_code == AC_BUS_RESET) { 3010 cam_freeze_devq(&newpath); 3011 cam_release_devq(&newpath, 3012 RELSIM_RELEASE_AFTER_TIMEOUT, 3013 /*reduction*/0, 3014 /*timeout*/scsi_delay, 3015 /*getcount_only*/0); 3016 scsi_toggle_tags(&newpath); 3017 } 3018 3019 if (async_code == AC_INQ_CHANGED) { 3020 /* 3021 * We've sent a start unit command, or 3022 * something similar to a device that 3023 * may have caused its inquiry data to 3024 * change. So we re-scan the device to 3025 * refresh the inquiry data for it. 3026 */ 3027 scsi_scan_lun(newpath.periph, &newpath, 3028 CAM_EXPECT_INQ_CHANGE, NULL); 3029 } 3030 xpt_release_path(&newpath); 3031 } else if (async_code == AC_LOST_DEVICE && 3032 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 3033 device->flags |= CAM_DEV_UNCONFIGURED; 3034 xpt_release_device(device); 3035 } else if (async_code == AC_TRANSFER_NEG) { 3036 struct ccb_trans_settings *settings; 3037 struct cam_path path; 3038 3039 settings = (struct ccb_trans_settings *)async_arg; 3040 xpt_compile_path(&path, NULL, bus->path_id, target->target_id, 3041 device->lun_id); 3042 scsi_set_transfer_settings(settings, &path, 3043 /*async_update*/TRUE); 3044 xpt_release_path(&path); 3045 } 3046 } 3047 3048 static void 3049 _scsi_announce_periph(struct cam_periph *periph, u_int *speed, u_int *freq, struct ccb_trans_settings *cts) 3050 { 3051 struct ccb_pathinq cpi; 3052 struct cam_path *path = periph->path; 3053 3054 cam_periph_assert(periph, MA_OWNED); 3055 3056 xpt_setup_ccb(&cts->ccb_h, path, CAM_PRIORITY_NORMAL); 3057 cts->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 3058 cts->type = CTS_TYPE_CURRENT_SETTINGS; 3059 xpt_action((union ccb*)cts); 3060 if (cam_ccb_status((union ccb *)cts) != CAM_REQ_CMP) 3061 return; 3062 3063 /* Ask the SIM for its base transfer speed */ 3064 memset(&cpi, 0, sizeof(cpi)); 3065 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 3066 cpi.ccb_h.func_code = XPT_PATH_INQ; 3067 xpt_action((union ccb *)&cpi); 3068 3069 /* Report connection speed */ 3070 *speed = cpi.base_transfer_speed; 3071 *freq = 0; 3072 3073 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SPI) { 3074 struct ccb_trans_settings_spi *spi = 3075 &cts->xport_specific.spi; 3076 3077 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 3078 && spi->sync_offset != 0) { 3079 *freq = scsi_calc_syncsrate(spi->sync_period); 3080 *speed = *freq; 3081 } 3082 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3083 *speed *= (0x01 << spi->bus_width); 3084 } 3085 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_FC) { 3086 struct ccb_trans_settings_fc *fc = 3087 &cts->xport_specific.fc; 3088 3089 if (fc->valid & CTS_FC_VALID_SPEED) 3090 *speed = fc->bitrate; 3091 } 3092 if (cts->ccb_h.status == CAM_REQ_CMP && cts->transport == XPORT_SAS) { 3093 struct ccb_trans_settings_sas *sas = 3094 &cts->xport_specific.sas; 3095 3096 if (sas->valid & CTS_SAS_VALID_SPEED) 3097 *speed = sas->bitrate; 3098 } 3099 } 3100 3101 static void 3102 scsi_announce_periph_sbuf(struct cam_periph *periph, struct sbuf *sb) 3103 { 3104 struct ccb_trans_settings cts; 3105 u_int speed, freq, mb; 3106 3107 memset(&cts, 0, sizeof(cts)); 3108 _scsi_announce_periph(periph, &speed, &freq, &cts); 3109 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3110 return; 3111 3112 mb = speed / 1000; 3113 if (mb > 0) 3114 sbuf_printf(sb, "%s%d: %d.%03dMB/s transfers", 3115 periph->periph_name, periph->unit_number, 3116 mb, speed % 1000); 3117 else 3118 sbuf_printf(sb, "%s%d: %dKB/s transfers", periph->periph_name, 3119 periph->unit_number, speed); 3120 /* Report additional information about SPI connections */ 3121 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3122 struct ccb_trans_settings_spi *spi; 3123 3124 spi = &cts.xport_specific.spi; 3125 if (freq != 0) { 3126 sbuf_printf(sb, " (%d.%03dMHz%s, offset %d", freq / 1000, 3127 freq % 1000, 3128 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3129 ? " DT" : "", 3130 spi->sync_offset); 3131 } 3132 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3133 && spi->bus_width > 0) { 3134 if (freq != 0) { 3135 sbuf_printf(sb, ", "); 3136 } else { 3137 sbuf_printf(sb, " ("); 3138 } 3139 sbuf_printf(sb, "%dbit)", 8 * (0x01 << spi->bus_width)); 3140 } else if (freq != 0) { 3141 sbuf_printf(sb, ")"); 3142 } 3143 } 3144 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3145 struct ccb_trans_settings_fc *fc; 3146 3147 fc = &cts.xport_specific.fc; 3148 if (fc->valid & CTS_FC_VALID_WWNN) 3149 sbuf_printf(sb, " WWNN 0x%llx", (long long) fc->wwnn); 3150 if (fc->valid & CTS_FC_VALID_WWPN) 3151 sbuf_printf(sb, " WWPN 0x%llx", (long long) fc->wwpn); 3152 if (fc->valid & CTS_FC_VALID_PORT) 3153 sbuf_printf(sb, " PortID 0x%x", fc->port); 3154 } 3155 sbuf_printf(sb, "\n"); 3156 } 3157 3158 static void 3159 scsi_announce_periph(struct cam_periph *periph) 3160 { 3161 struct ccb_trans_settings cts; 3162 u_int speed, freq, mb; 3163 3164 memset(&cts, 0, sizeof(cts)); 3165 _scsi_announce_periph(periph, &speed, &freq, &cts); 3166 if (cam_ccb_status((union ccb *)&cts) != CAM_REQ_CMP) 3167 return; 3168 3169 mb = speed / 1000; 3170 if (mb > 0) 3171 printf("%s%d: %d.%03dMB/s transfers", 3172 periph->periph_name, periph->unit_number, 3173 mb, speed % 1000); 3174 else 3175 printf("%s%d: %dKB/s transfers", periph->periph_name, 3176 periph->unit_number, speed); 3177 /* Report additional information about SPI connections */ 3178 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3179 struct ccb_trans_settings_spi *spi; 3180 3181 spi = &cts.xport_specific.spi; 3182 if (freq != 0) { 3183 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3184 freq % 1000, 3185 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3186 ? " DT" : "", 3187 spi->sync_offset); 3188 } 3189 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3190 && spi->bus_width > 0) { 3191 if (freq != 0) { 3192 printf(", "); 3193 } else { 3194 printf(" ("); 3195 } 3196 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3197 } else if (freq != 0) { 3198 printf(")"); 3199 } 3200 } 3201 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3202 struct ccb_trans_settings_fc *fc; 3203 3204 fc = &cts.xport_specific.fc; 3205 if (fc->valid & CTS_FC_VALID_WWNN) 3206 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3207 if (fc->valid & CTS_FC_VALID_WWPN) 3208 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3209 if (fc->valid & CTS_FC_VALID_PORT) 3210 printf(" PortID 0x%x", fc->port); 3211 } 3212 printf("\n"); 3213 } 3214 3215 static void 3216 scsi_proto_announce_sbuf(struct cam_ed *device, struct sbuf *sb) 3217 { 3218 scsi_print_inquiry_sbuf(sb, &device->inq_data); 3219 } 3220 3221 static void 3222 scsi_proto_announce(struct cam_ed *device) 3223 { 3224 scsi_print_inquiry(&device->inq_data); 3225 } 3226 3227 static void 3228 scsi_proto_denounce_sbuf(struct cam_ed *device, struct sbuf *sb) 3229 { 3230 scsi_print_inquiry_short_sbuf(sb, &device->inq_data); 3231 } 3232 3233 static void 3234 scsi_proto_denounce(struct cam_ed *device) 3235 { 3236 scsi_print_inquiry_short(&device->inq_data); 3237 } 3238 3239 static void 3240 scsi_proto_debug_out(union ccb *ccb) 3241 { 3242 char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1]; 3243 struct cam_ed *device; 3244 3245 if (ccb->ccb_h.func_code != XPT_SCSI_IO) 3246 return; 3247 3248 device = ccb->ccb_h.path->device; 3249 CAM_DEBUG(ccb->ccb_h.path, 3250 CAM_DEBUG_CDB,("%s. CDB: %s\n", 3251 scsi_op_desc(scsiio_cdb_ptr(&ccb->csio)[0], &device->inq_data), 3252 scsi_cdb_string(scsiio_cdb_ptr(&ccb->csio), cdb_str, sizeof(cdb_str)))); 3253 } 3254