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