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