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