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 TUNABLE_INT("kern.cam.cam_srch_hi", &cam_srch_hi); 82 static int sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS); 83 SYSCTL_PROC(_kern_cam, OID_AUTO, cam_srch_hi, CTLTYPE_INT|CTLFLAG_RW, 0, 0, 84 sysctl_cam_search_luns, "I", 85 "allow search above LUN 7 for SCSI3 and greater devices"); 86 87 #define CAM_SCSI2_MAXLUN 8 88 #define CAM_CAN_GET_SIMPLE_LUN(x, i) \ 89 ((((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 90 RPL_LUNDATA_ATYP_PERIPH) || \ 91 (((x)->luns[i].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 92 RPL_LUNDATA_ATYP_FLAT)) 93 #define CAM_GET_SIMPLE_LUN(lp, i, lval) \ 94 if (((lp)->luns[(i)].lundata[0] & RPL_LUNDATA_ATYP_MASK) == \ 95 RPL_LUNDATA_ATYP_PERIPH) { \ 96 (lval) = (lp)->luns[(i)].lundata[1]; \ 97 } else { \ 98 (lval) = (lp)->luns[(i)].lundata[0]; \ 99 (lval) &= RPL_LUNDATA_FLAT_LUN_MASK; \ 100 (lval) <<= 8; \ 101 (lval) |= (lp)->luns[(i)].lundata[1]; \ 102 } 103 /* 104 * If we're not quirked to search <= the first 8 luns 105 * and we are either quirked to search above lun 8, 106 * or we're > SCSI-2 and we've enabled hilun searching, 107 * or we're > SCSI-2 and the last lun was a success, 108 * we can look for luns above lun 8. 109 */ 110 #define CAN_SRCH_HI_SPARSE(dv) \ 111 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 112 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 113 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2 && cam_srch_hi))) 114 115 #define CAN_SRCH_HI_DENSE(dv) \ 116 (((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_NOHILUNS) == 0) \ 117 && ((SCSI_QUIRK(dv)->quirks & CAM_QUIRK_HILUNS) \ 118 || (SID_ANSI_REV(&dv->inq_data) > SCSI_REV_2))) 119 120 static periph_init_t probe_periph_init; 121 122 static struct periph_driver probe_driver = 123 { 124 probe_periph_init, "probe", 125 TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0, 126 CAM_PERIPH_DRV_EARLY 127 }; 128 129 PERIPHDRIVER_DECLARE(probe, probe_driver); 130 131 typedef enum { 132 PROBE_TUR, 133 PROBE_INQUIRY, /* this counts as DV0 for Basic Domain Validation */ 134 PROBE_FULL_INQUIRY, 135 PROBE_REPORT_LUNS, 136 PROBE_MODE_SENSE, 137 PROBE_SUPPORTED_VPD_LIST, 138 PROBE_DEVICE_ID, 139 PROBE_SERIAL_NUM, 140 PROBE_TUR_FOR_NEGOTIATION, 141 PROBE_INQUIRY_BASIC_DV1, 142 PROBE_INQUIRY_BASIC_DV2, 143 PROBE_DV_EXIT, 144 PROBE_INVALID 145 } probe_action; 146 147 static char *probe_action_text[] = { 148 "PROBE_TUR", 149 "PROBE_INQUIRY", 150 "PROBE_FULL_INQUIRY", 151 "PROBE_REPORT_LUNS", 152 "PROBE_MODE_SENSE", 153 "PROBE_SUPPORTED_VPD_LIST", 154 "PROBE_DEVICE_ID", 155 "PROBE_SERIAL_NUM", 156 "PROBE_TUR_FOR_NEGOTIATION", 157 "PROBE_INQUIRY_BASIC_DV1", 158 "PROBE_INQUIRY_BASIC_DV2", 159 "PROBE_DV_EXIT", 160 "PROBE_INVALID" 161 }; 162 163 #define PROBE_SET_ACTION(softc, newaction) \ 164 do { \ 165 char **text; \ 166 text = probe_action_text; \ 167 CAM_DEBUG((softc)->periph->path, CAM_DEBUG_INFO, \ 168 ("Probe %s to %s\n", text[(softc)->action], \ 169 text[(newaction)])); \ 170 (softc)->action = (newaction); \ 171 } while(0) 172 173 typedef enum { 174 PROBE_INQUIRY_CKSUM = 0x01, 175 PROBE_SERIAL_CKSUM = 0x02, 176 PROBE_NO_ANNOUNCE = 0x04 177 } probe_flags; 178 179 typedef struct { 180 TAILQ_HEAD(, ccb_hdr) request_ccbs; 181 probe_action action; 182 union ccb saved_ccb; 183 probe_flags flags; 184 MD5_CTX context; 185 u_int8_t digest[16]; 186 struct cam_periph *periph; 187 } probe_softc; 188 189 static const char quantum[] = "QUANTUM"; 190 static const char sony[] = "SONY"; 191 static const char west_digital[] = "WDIGTL"; 192 static const char samsung[] = "SAMSUNG"; 193 static const char seagate[] = "SEAGATE"; 194 static const char microp[] = "MICROP"; 195 196 static struct scsi_quirk_entry scsi_quirk_table[] = 197 { 198 { 199 /* Reports QUEUE FULL for temporary resource shortages */ 200 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP39100*", "*" }, 201 /*quirks*/0, /*mintags*/24, /*maxtags*/32 202 }, 203 { 204 /* Reports QUEUE FULL for temporary resource shortages */ 205 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP34550*", "*" }, 206 /*quirks*/0, /*mintags*/24, /*maxtags*/32 207 }, 208 { 209 /* Reports QUEUE FULL for temporary resource shortages */ 210 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "XP32275*", "*" }, 211 /*quirks*/0, /*mintags*/24, /*maxtags*/32 212 }, 213 { 214 /* Broken tagged queuing drive */ 215 { T_DIRECT, SIP_MEDIA_FIXED, microp, "4421-07*", "*" }, 216 /*quirks*/0, /*mintags*/0, /*maxtags*/0 217 }, 218 { 219 /* Broken tagged queuing drive */ 220 { T_DIRECT, SIP_MEDIA_FIXED, "HP", "C372*", "*" }, 221 /*quirks*/0, /*mintags*/0, /*maxtags*/0 222 }, 223 { 224 /* Broken tagged queuing drive */ 225 { T_DIRECT, SIP_MEDIA_FIXED, microp, "3391*", "x43h" }, 226 /*quirks*/0, /*mintags*/0, /*maxtags*/0 227 }, 228 { 229 /* 230 * Unfortunately, the Quantum Atlas III has the same 231 * problem as the Atlas II drives above. 232 * Reported by: "Johan Granlund" <johan@granlund.nu> 233 * 234 * For future reference, the drive with the problem was: 235 * QUANTUM QM39100TD-SW N1B0 236 * 237 * It's possible that Quantum will fix the problem in later 238 * firmware revisions. If that happens, the quirk entry 239 * will need to be made specific to the firmware revisions 240 * with the problem. 241 * 242 */ 243 /* Reports QUEUE FULL for temporary resource shortages */ 244 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM39100*", "*" }, 245 /*quirks*/0, /*mintags*/24, /*maxtags*/32 246 }, 247 { 248 /* 249 * 18 Gig Atlas III, same problem as the 9G version. 250 * Reported by: Andre Albsmeier 251 * <andre.albsmeier@mchp.siemens.de> 252 * 253 * For future reference, the drive with the problem was: 254 * QUANTUM QM318000TD-S N491 255 */ 256 /* Reports QUEUE FULL for temporary resource shortages */ 257 { T_DIRECT, SIP_MEDIA_FIXED, quantum, "QM318000*", "*" }, 258 /*quirks*/0, /*mintags*/24, /*maxtags*/32 259 }, 260 { 261 /* 262 * Broken tagged queuing drive 263 * Reported by: Bret Ford <bford@uop.cs.uop.edu> 264 * and: Martin Renters <martin@tdc.on.ca> 265 */ 266 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST410800*", "71*" }, 267 /*quirks*/0, /*mintags*/0, /*maxtags*/0 268 }, 269 /* 270 * The Seagate Medalist Pro drives have very poor write 271 * performance with anything more than 2 tags. 272 * 273 * Reported by: Paul van der Zwan <paulz@trantor.xs4all.nl> 274 * Drive: <SEAGATE ST36530N 1444> 275 * 276 * Reported by: Jeremy Lea <reg@shale.csir.co.za> 277 * Drive: <SEAGATE ST34520W 1281> 278 * 279 * No one has actually reported that the 9G version 280 * (ST39140*) of the Medalist Pro has the same problem, but 281 * we're assuming that it does because the 4G and 6.5G 282 * versions of the drive are broken. 283 */ 284 { 285 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST34520*", "*"}, 286 /*quirks*/0, /*mintags*/2, /*maxtags*/2 287 }, 288 { 289 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST36530*", "*"}, 290 /*quirks*/0, /*mintags*/2, /*maxtags*/2 291 }, 292 { 293 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST39140*", "*"}, 294 /*quirks*/0, /*mintags*/2, /*maxtags*/2 295 }, 296 { 297 /* 298 * Experiences command timeouts under load with a 299 * tag count higher than 55. 300 */ 301 { T_DIRECT, SIP_MEDIA_FIXED, seagate, "ST3146855LW", "*"}, 302 /*quirks*/0, /*mintags*/2, /*maxtags*/55 303 }, 304 { 305 /* 306 * Slow when tagged queueing is enabled. Write performance 307 * steadily drops off with more and more concurrent 308 * transactions. Best sequential write performance with 309 * tagged queueing turned off and write caching turned on. 310 * 311 * PR: kern/10398 312 * Submitted by: Hideaki Okada <hokada@isl.melco.co.jp> 313 * Drive: DCAS-34330 w/ "S65A" firmware. 314 * 315 * The drive with the problem had the "S65A" firmware 316 * revision, and has also been reported (by Stephen J. 317 * Roznowski <sjr@home.net>) for a drive with the "S61A" 318 * firmware revision. 319 * 320 * Although no one has reported problems with the 2 gig 321 * version of the DCAS drive, the assumption is that it 322 * has the same problems as the 4 gig version. Therefore 323 * this quirk entries disables tagged queueing for all 324 * DCAS drives. 325 */ 326 { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DCAS*", "*" }, 327 /*quirks*/0, /*mintags*/0, /*maxtags*/0 328 }, 329 { 330 /* Broken tagged queuing drive */ 331 { T_DIRECT, SIP_MEDIA_REMOVABLE, "iomega", "jaz*", "*" }, 332 /*quirks*/0, /*mintags*/0, /*maxtags*/0 333 }, 334 { 335 /* Broken tagged queuing drive */ 336 { T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP2107*", "*" }, 337 /*quirks*/0, /*mintags*/0, /*maxtags*/0 338 }, 339 { 340 /* This does not support other than LUN 0 */ 341 { T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" }, 342 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 343 }, 344 { 345 /* 346 * Broken tagged queuing drive. 347 * Submitted by: 348 * NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp> 349 * in PR kern/9535 350 */ 351 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN34324U*", "*" }, 352 /*quirks*/0, /*mintags*/0, /*maxtags*/0 353 }, 354 { 355 /* 356 * Slow when tagged queueing is enabled. (1.5MB/sec versus 357 * 8MB/sec.) 358 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 359 * Best performance with these drives is achieved with 360 * tagged queueing turned off, and write caching turned on. 361 */ 362 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "WDE*", "*" }, 363 /*quirks*/0, /*mintags*/0, /*maxtags*/0 364 }, 365 { 366 /* 367 * Slow when tagged queueing is enabled. (1.5MB/sec versus 368 * 8MB/sec.) 369 * Submitted by: Andrew Gallatin <gallatin@cs.duke.edu> 370 * Best performance with these drives is achieved with 371 * tagged queueing turned off, and write caching turned on. 372 */ 373 { T_DIRECT, SIP_MEDIA_FIXED, west_digital, "ENTERPRISE", "*" }, 374 /*quirks*/0, /*mintags*/0, /*maxtags*/0 375 }, 376 { 377 /* 378 * Doesn't handle queue full condition correctly, 379 * so we need to limit maxtags to what the device 380 * can handle instead of determining this automatically. 381 */ 382 { T_DIRECT, SIP_MEDIA_FIXED, samsung, "WN321010S*", "*" }, 383 /*quirks*/0, /*mintags*/2, /*maxtags*/32 384 }, 385 { 386 /* Really only one LUN */ 387 { T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA", "*" }, 388 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 389 }, 390 { 391 /* I can't believe we need a quirk for DPT volumes. */ 392 { T_ANY, SIP_MEDIA_FIXED|SIP_MEDIA_REMOVABLE, "DPT", "*", "*" }, 393 CAM_QUIRK_NOLUNS, 394 /*mintags*/0, /*maxtags*/255 395 }, 396 { 397 /* 398 * Many Sony CDROM drives don't like multi-LUN probing. 399 */ 400 { T_CDROM, SIP_MEDIA_REMOVABLE, sony, "CD-ROM CDU*", "*" }, 401 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 402 }, 403 { 404 /* 405 * This drive doesn't like multiple LUN probing. 406 * Submitted by: Parag Patel <parag@cgt.com> 407 */ 408 { T_WORM, SIP_MEDIA_REMOVABLE, sony, "CD-R CDU9*", "*" }, 409 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 410 }, 411 { 412 { T_WORM, SIP_MEDIA_REMOVABLE, "YAMAHA", "CDR100*", "*" }, 413 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 414 }, 415 { 416 /* 417 * The 8200 doesn't like multi-lun probing, and probably 418 * don't like serial number requests either. 419 */ 420 { 421 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 422 "EXB-8200*", "*" 423 }, 424 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 425 }, 426 { 427 /* 428 * Let's try the same as above, but for a drive that says 429 * it's an IPL-6860 but is actually an EXB 8200. 430 */ 431 { 432 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "EXABYTE", 433 "IPL-6860*", "*" 434 }, 435 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 436 }, 437 { 438 /* 439 * These Hitachi drives don't like multi-lun probing. 440 * The PR submitter has a DK319H, but says that the Linux 441 * kernel has a similar work-around for the DK312 and DK314, 442 * so all DK31* drives are quirked here. 443 * PR: misc/18793 444 * Submitted by: Paul Haddad <paul@pth.com> 445 */ 446 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK31*", "*" }, 447 CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255 448 }, 449 { 450 /* 451 * The Hitachi CJ series with J8A8 firmware apparantly has 452 * problems with tagged commands. 453 * PR: 23536 454 * Reported by: amagai@nue.org 455 */ 456 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "DK32CJ*", "J8A8" }, 457 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 458 }, 459 { 460 /* 461 * These are the large storage arrays. 462 * Submitted by: William Carrel <william.carrel@infospace.com> 463 */ 464 { T_DIRECT, SIP_MEDIA_FIXED, "HITACHI", "OPEN*", "*" }, 465 CAM_QUIRK_HILUNS, 2, 1024 466 }, 467 { 468 /* 469 * This old revision of the TDC3600 is also SCSI-1, and 470 * hangs upon serial number probing. 471 */ 472 { 473 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 474 " TDC 3600", "U07:" 475 }, 476 CAM_QUIRK_NOVPDS, /*mintags*/0, /*maxtags*/0 477 }, 478 { 479 /* 480 * Would repond to all LUNs if asked for. 481 */ 482 { 483 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "CALIPER", 484 "CP150", "*" 485 }, 486 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 487 }, 488 { 489 /* 490 * Would repond to all LUNs if asked for. 491 */ 492 { 493 T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 494 "96X2*", "*" 495 }, 496 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 497 }, 498 { 499 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 500 { T_PROCESSOR, SIP_MEDIA_FIXED, "Cabletrn", "EA41*", "*" }, 501 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 502 }, 503 { 504 /* Submitted by: Matthew Dodd <winter@jurai.net> */ 505 { T_PROCESSOR, SIP_MEDIA_FIXED, "CABLETRN", "EA41*", "*" }, 506 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 507 }, 508 { 509 /* TeraSolutions special settings for TRC-22 RAID */ 510 { T_DIRECT, SIP_MEDIA_FIXED, "TERASOLU", "TRC-22", "*" }, 511 /*quirks*/0, /*mintags*/55, /*maxtags*/255 512 }, 513 { 514 /* Veritas Storage Appliance */ 515 { T_DIRECT, SIP_MEDIA_FIXED, "VERITAS", "*", "*" }, 516 CAM_QUIRK_HILUNS, /*mintags*/2, /*maxtags*/1024 517 }, 518 { 519 /* 520 * Would respond to all LUNs. Device type and removable 521 * flag are jumper-selectable. 522 */ 523 { T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, "MaxOptix", 524 "Tahiti 1", "*" 525 }, 526 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 527 }, 528 { 529 /* EasyRAID E5A aka. areca ARC-6010 */ 530 { T_DIRECT, SIP_MEDIA_FIXED, "easyRAID", "*", "*" }, 531 CAM_QUIRK_NOHILUNS, /*mintags*/2, /*maxtags*/255 532 }, 533 { 534 { T_ENCLOSURE, SIP_MEDIA_FIXED, "DP", "BACKPLANE", "*" }, 535 CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0 536 }, 537 { 538 /* Default tagged queuing parameters for all devices */ 539 { 540 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 541 /*vendor*/"*", /*product*/"*", /*revision*/"*" 542 }, 543 /*quirks*/0, /*mintags*/2, /*maxtags*/255 544 }, 545 }; 546 547 static const int scsi_quirk_table_size = 548 sizeof(scsi_quirk_table) / sizeof(*scsi_quirk_table); 549 550 static cam_status proberegister(struct cam_periph *periph, 551 void *arg); 552 static void probeschedule(struct cam_periph *probe_periph); 553 static int device_has_vpd(struct cam_ed *device, uint8_t page_id); 554 static void probestart(struct cam_periph *periph, union ccb *start_ccb); 555 static void proberequestdefaultnegotiation(struct cam_periph *periph); 556 static int proberequestbackoff(struct cam_periph *periph, 557 struct cam_ed *device); 558 static void probedone(struct cam_periph *periph, union ccb *done_ccb); 559 static int probe_strange_rpl_data(struct scsi_report_luns_data *rp, 560 uint32_t maxlun); 561 static void probe_purge_old(struct cam_path *path, 562 struct scsi_report_luns_data *new); 563 static void probecleanup(struct cam_periph *periph); 564 static void scsi_find_quirk(struct cam_ed *device); 565 static void scsi_scan_bus(struct cam_periph *periph, union ccb *ccb); 566 static void scsi_scan_lun(struct cam_periph *periph, 567 struct cam_path *path, cam_flags flags, 568 union ccb *ccb); 569 static void xptscandone(struct cam_periph *periph, union ccb *done_ccb); 570 static struct cam_ed * 571 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, 572 lun_id_t lun_id); 573 static void scsi_devise_transport(struct cam_path *path); 574 static void scsi_set_transfer_settings(struct ccb_trans_settings *cts, 575 struct cam_ed *device, 576 int async_update); 577 static void scsi_toggle_tags(struct cam_path *path); 578 static void scsi_dev_async(u_int32_t async_code, 579 struct cam_eb *bus, 580 struct cam_et *target, 581 struct cam_ed *device, 582 void *async_arg); 583 static void scsi_action(union ccb *start_ccb); 584 static void scsi_announce_periph(struct cam_periph *periph); 585 586 static struct xpt_xport scsi_xport = { 587 .alloc_device = scsi_alloc_device, 588 .action = scsi_action, 589 .async = scsi_dev_async, 590 .announce = scsi_announce_periph, 591 }; 592 593 struct xpt_xport * 594 scsi_get_xport(void) 595 { 596 return (&scsi_xport); 597 } 598 599 static void 600 probe_periph_init() 601 { 602 } 603 604 static cam_status 605 proberegister(struct cam_periph *periph, void *arg) 606 { 607 union ccb *request_ccb; /* CCB representing the probe request */ 608 cam_status status; 609 probe_softc *softc; 610 611 request_ccb = (union ccb *)arg; 612 if (periph == NULL) { 613 printf("proberegister: periph was NULL!!\n"); 614 return(CAM_REQ_CMP_ERR); 615 } 616 617 if (request_ccb == NULL) { 618 printf("proberegister: no probe CCB, " 619 "can't register device\n"); 620 return(CAM_REQ_CMP_ERR); 621 } 622 623 softc = (probe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT); 624 625 if (softc == NULL) { 626 printf("proberegister: Unable to probe new device. " 627 "Unable to allocate softc\n"); 628 return(CAM_REQ_CMP_ERR); 629 } 630 TAILQ_INIT(&softc->request_ccbs); 631 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 632 periph_links.tqe); 633 softc->flags = 0; 634 periph->softc = softc; 635 softc->periph = periph; 636 softc->action = PROBE_INVALID; 637 status = cam_periph_acquire(periph); 638 if (status != CAM_REQ_CMP) { 639 return (status); 640 } 641 642 643 /* 644 * Ensure we've waited at least a bus settle 645 * delay before attempting to probe the device. 646 * For HBAs that don't do bus resets, this won't make a difference. 647 */ 648 cam_periph_freeze_after_event(periph, &periph->path->bus->last_reset, 649 scsi_delay); 650 /* 651 * Ensure nobody slip in until probe finish. 652 */ 653 cam_freeze_devq_arg(periph->path, 654 RELSIM_RELEASE_RUNLEVEL, CAM_RL_XPT + 1); 655 probeschedule(periph); 656 return(CAM_REQ_CMP); 657 } 658 659 static void 660 probeschedule(struct cam_periph *periph) 661 { 662 struct ccb_pathinq cpi; 663 union ccb *ccb; 664 probe_softc *softc; 665 666 softc = (probe_softc *)periph->softc; 667 ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 668 669 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 670 cpi.ccb_h.func_code = XPT_PATH_INQ; 671 xpt_action((union ccb *)&cpi); 672 673 /* 674 * If a device has gone away and another device, or the same one, 675 * is back in the same place, it should have a unit attention 676 * condition pending. It will not report the unit attention in 677 * response to an inquiry, which may leave invalid transfer 678 * negotiations in effect. The TUR will reveal the unit attention 679 * condition. Only send the TUR for lun 0, since some devices 680 * will get confused by commands other than inquiry to non-existent 681 * luns. If you think a device has gone away start your scan from 682 * lun 0. This will insure that any bogus transfer settings are 683 * invalidated. 684 * 685 * If we haven't seen the device before and the controller supports 686 * some kind of transfer negotiation, negotiate with the first 687 * sent command if no bus reset was performed at startup. This 688 * ensures that the device is not confused by transfer negotiation 689 * settings left over by loader or BIOS action. 690 */ 691 if (((ccb->ccb_h.path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 692 && (ccb->ccb_h.target_lun == 0)) { 693 PROBE_SET_ACTION(softc, PROBE_TUR); 694 } else if ((cpi.hba_inquiry & (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) != 0 695 && (cpi.hba_misc & PIM_NOBUSRESET) != 0) { 696 proberequestdefaultnegotiation(periph); 697 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 698 } else { 699 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 700 } 701 702 if (ccb->crcn.flags & CAM_EXPECT_INQ_CHANGE) 703 softc->flags |= PROBE_NO_ANNOUNCE; 704 else 705 softc->flags &= ~PROBE_NO_ANNOUNCE; 706 707 xpt_schedule(periph, CAM_PRIORITY_XPT); 708 } 709 710 static int 711 device_has_vpd(struct cam_ed *device, uint8_t page_id) 712 { 713 int i, num_pages; 714 struct scsi_vpd_supported_pages *vpds; 715 716 vpds = (struct scsi_vpd_supported_pages *)device->supported_vpds; 717 num_pages = device->supported_vpds_len - SVPD_SUPPORTED_PAGES_HDR_LEN; 718 for (i = 0;i < num_pages;i++) 719 if (vpds->page_list[i] == page_id) 720 return 1; 721 722 return 0; 723 } 724 725 static void 726 probestart(struct cam_periph *periph, union ccb *start_ccb) 727 { 728 /* Probe the device that our peripheral driver points to */ 729 struct ccb_scsiio *csio; 730 probe_softc *softc; 731 732 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probestart\n")); 733 734 softc = (probe_softc *)periph->softc; 735 csio = &start_ccb->csio; 736 again: 737 738 switch (softc->action) { 739 case PROBE_TUR: 740 case PROBE_TUR_FOR_NEGOTIATION: 741 case PROBE_DV_EXIT: 742 { 743 scsi_test_unit_ready(csio, 744 /*retries*/10, 745 probedone, 746 MSG_SIMPLE_Q_TAG, 747 SSD_FULL_SIZE, 748 /*timeout*/60000); 749 break; 750 } 751 case PROBE_INQUIRY: 752 case PROBE_FULL_INQUIRY: 753 case PROBE_INQUIRY_BASIC_DV1: 754 case PROBE_INQUIRY_BASIC_DV2: 755 { 756 u_int inquiry_len; 757 struct scsi_inquiry_data *inq_buf; 758 759 inq_buf = &periph->path->device->inq_data; 760 761 /* 762 * If the device is currently configured, we calculate an 763 * MD5 checksum of the inquiry data, and if the serial number 764 * length is greater than 0, add the serial number data 765 * into the checksum as well. Once the inquiry and the 766 * serial number check finish, we attempt to figure out 767 * whether we still have the same device. 768 */ 769 if ((periph->path->device->flags & CAM_DEV_UNCONFIGURED) == 0) { 770 771 MD5Init(&softc->context); 772 MD5Update(&softc->context, (unsigned char *)inq_buf, 773 sizeof(struct scsi_inquiry_data)); 774 softc->flags |= PROBE_INQUIRY_CKSUM; 775 if (periph->path->device->serial_num_len > 0) { 776 MD5Update(&softc->context, 777 periph->path->device->serial_num, 778 periph->path->device->serial_num_len); 779 softc->flags |= PROBE_SERIAL_CKSUM; 780 } 781 MD5Final(softc->digest, &softc->context); 782 } 783 784 if (softc->action == PROBE_INQUIRY) 785 inquiry_len = SHORT_INQUIRY_LENGTH; 786 else 787 inquiry_len = SID_ADDITIONAL_LENGTH(inq_buf); 788 789 /* 790 * Some parallel SCSI devices fail to send an 791 * ignore wide residue message when dealing with 792 * odd length inquiry requests. Round up to be 793 * safe. 794 */ 795 inquiry_len = roundup2(inquiry_len, 2); 796 797 if (softc->action == PROBE_INQUIRY_BASIC_DV1 798 || softc->action == PROBE_INQUIRY_BASIC_DV2) { 799 inq_buf = malloc(inquiry_len, M_CAMXPT, M_NOWAIT); 800 } 801 if (inq_buf == NULL) { 802 xpt_print(periph->path, "malloc failure- skipping Basic" 803 "Domain Validation\n"); 804 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 805 scsi_test_unit_ready(csio, 806 /*retries*/4, 807 probedone, 808 MSG_SIMPLE_Q_TAG, 809 SSD_FULL_SIZE, 810 /*timeout*/60000); 811 break; 812 } 813 scsi_inquiry(csio, 814 /*retries*/4, 815 probedone, 816 MSG_SIMPLE_Q_TAG, 817 (u_int8_t *)inq_buf, 818 inquiry_len, 819 /*evpd*/FALSE, 820 /*page_code*/0, 821 SSD_MIN_SIZE, 822 /*timeout*/60 * 1000); 823 break; 824 } 825 case PROBE_REPORT_LUNS: 826 { 827 void *rp; 828 829 rp = malloc(periph->path->target->rpl_size, 830 M_CAMXPT, M_NOWAIT | M_ZERO); 831 if (rp == NULL) { 832 struct scsi_inquiry_data *inq_buf; 833 inq_buf = &periph->path->device->inq_data; 834 xpt_print(periph->path, 835 "Unable to alloc report luns storage\n"); 836 if (INQ_DATA_TQ_ENABLED(inq_buf)) 837 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 838 else 839 PROBE_SET_ACTION(softc, 840 PROBE_SUPPORTED_VPD_LIST); 841 goto again; 842 } 843 scsi_report_luns(csio, 5, probedone, MSG_SIMPLE_Q_TAG, 844 RPL_REPORT_DEFAULT, rp, periph->path->target->rpl_size, 845 SSD_FULL_SIZE, 60000); break; 846 break; 847 } 848 case PROBE_MODE_SENSE: 849 { 850 void *mode_buf; 851 int mode_buf_len; 852 853 mode_buf_len = sizeof(struct scsi_mode_header_6) 854 + sizeof(struct scsi_mode_blk_desc) 855 + sizeof(struct scsi_control_page); 856 mode_buf = malloc(mode_buf_len, M_CAMXPT, M_NOWAIT); 857 if (mode_buf != NULL) { 858 scsi_mode_sense(csio, 859 /*retries*/4, 860 probedone, 861 MSG_SIMPLE_Q_TAG, 862 /*dbd*/FALSE, 863 SMS_PAGE_CTRL_CURRENT, 864 SMS_CONTROL_MODE_PAGE, 865 mode_buf, 866 mode_buf_len, 867 SSD_FULL_SIZE, 868 /*timeout*/60000); 869 break; 870 } 871 xpt_print(periph->path, "Unable to mode sense control page - " 872 "malloc failure\n"); 873 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 874 } 875 /* FALLTHROUGH */ 876 case PROBE_SUPPORTED_VPD_LIST: 877 { 878 struct scsi_vpd_supported_page_list *vpd_list; 879 struct cam_ed *device; 880 881 vpd_list = NULL; 882 device = periph->path->device; 883 884 if ((SCSI_QUIRK(device)->quirks & CAM_QUIRK_NOVPDS) == 0) 885 vpd_list = malloc(sizeof(*vpd_list), M_CAMXPT, 886 M_NOWAIT | M_ZERO); 887 888 if (vpd_list != NULL) { 889 scsi_inquiry(csio, 890 /*retries*/4, 891 probedone, 892 MSG_SIMPLE_Q_TAG, 893 (u_int8_t *)vpd_list, 894 sizeof(*vpd_list), 895 /*evpd*/TRUE, 896 SVPD_SUPPORTED_PAGE_LIST, 897 SSD_MIN_SIZE, 898 /*timeout*/60 * 1000); 899 break; 900 } 901 /* 902 * We'll have to do without, let our probedone 903 * routine finish up for us. 904 */ 905 start_ccb->csio.data_ptr = NULL; 906 probedone(periph, start_ccb); 907 return; 908 } 909 case PROBE_DEVICE_ID: 910 { 911 struct scsi_vpd_device_id *devid; 912 struct cam_ed *device; 913 914 devid = NULL; 915 device = periph->path->device; 916 if (device_has_vpd(device, SVPD_DEVICE_ID)) 917 devid = malloc(SVPD_DEVICE_ID_MAX_SIZE, M_CAMXPT, 918 M_NOWAIT | M_ZERO); 919 920 if (devid != NULL) { 921 scsi_inquiry(csio, 922 /*retries*/4, 923 probedone, 924 MSG_SIMPLE_Q_TAG, 925 (uint8_t *)devid, 926 SVPD_DEVICE_ID_MAX_SIZE, 927 /*evpd*/TRUE, 928 SVPD_DEVICE_ID, 929 SSD_MIN_SIZE, 930 /*timeout*/60 * 1000); 931 break; 932 } 933 /* 934 * We'll have to do without, let our probedone 935 * routine finish up for us. 936 */ 937 start_ccb->csio.data_ptr = NULL; 938 probedone(periph, start_ccb); 939 return; 940 } 941 case PROBE_SERIAL_NUM: 942 { 943 struct scsi_vpd_unit_serial_number *serial_buf; 944 struct cam_ed* device; 945 946 serial_buf = NULL; 947 device = periph->path->device; 948 if (device->serial_num != NULL) { 949 free(device->serial_num, M_CAMXPT); 950 device->serial_num = NULL; 951 device->serial_num_len = 0; 952 } 953 954 if (device_has_vpd(device, SVPD_UNIT_SERIAL_NUMBER)) 955 serial_buf = (struct scsi_vpd_unit_serial_number *) 956 malloc(sizeof(*serial_buf), M_CAMXPT, 957 M_NOWAIT|M_ZERO); 958 959 if (serial_buf != NULL) { 960 scsi_inquiry(csio, 961 /*retries*/4, 962 probedone, 963 MSG_SIMPLE_Q_TAG, 964 (u_int8_t *)serial_buf, 965 sizeof(*serial_buf), 966 /*evpd*/TRUE, 967 SVPD_UNIT_SERIAL_NUMBER, 968 SSD_MIN_SIZE, 969 /*timeout*/60 * 1000); 970 break; 971 } 972 /* 973 * We'll have to do without, let our probedone 974 * routine finish up for us. 975 */ 976 start_ccb->csio.data_ptr = NULL; 977 probedone(periph, start_ccb); 978 return; 979 } 980 case PROBE_INVALID: 981 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, 982 ("probestart: invalid action state\n")); 983 default: 984 break; 985 } 986 xpt_action(start_ccb); 987 } 988 989 static void 990 proberequestdefaultnegotiation(struct cam_periph *periph) 991 { 992 struct ccb_trans_settings cts; 993 994 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 995 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 996 cts.type = CTS_TYPE_USER_SETTINGS; 997 xpt_action((union ccb *)&cts); 998 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 999 return; 1000 } 1001 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1002 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1003 xpt_action((union ccb *)&cts); 1004 } 1005 1006 /* 1007 * Backoff Negotiation Code- only pertinent for SPI devices. 1008 */ 1009 static int 1010 proberequestbackoff(struct cam_periph *periph, struct cam_ed *device) 1011 { 1012 struct ccb_trans_settings cts; 1013 struct ccb_trans_settings_spi *spi; 1014 1015 memset(&cts, 0, sizeof (cts)); 1016 xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE); 1017 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1018 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1019 xpt_action((union ccb *)&cts); 1020 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1021 if (bootverbose) { 1022 xpt_print(periph->path, 1023 "failed to get current device settings\n"); 1024 } 1025 return (0); 1026 } 1027 if (cts.transport != XPORT_SPI) { 1028 if (bootverbose) { 1029 xpt_print(periph->path, "not SPI transport\n"); 1030 } 1031 return (0); 1032 } 1033 spi = &cts.xport_specific.spi; 1034 1035 /* 1036 * We cannot renegotiate sync rate if we don't have one. 1037 */ 1038 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 1039 if (bootverbose) { 1040 xpt_print(periph->path, "no sync rate known\n"); 1041 } 1042 return (0); 1043 } 1044 1045 /* 1046 * We'll assert that we don't have to touch PPR options- the 1047 * SIM will see what we do with period and offset and adjust 1048 * the PPR options as appropriate. 1049 */ 1050 1051 /* 1052 * A sync rate with unknown or zero offset is nonsensical. 1053 * A sync period of zero means Async. 1054 */ 1055 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0 1056 || spi->sync_offset == 0 || spi->sync_period == 0) { 1057 if (bootverbose) { 1058 xpt_print(periph->path, "no sync rate available\n"); 1059 } 1060 return (0); 1061 } 1062 1063 if (device->flags & CAM_DEV_DV_HIT_BOTTOM) { 1064 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1065 ("hit async: giving up on DV\n")); 1066 return (0); 1067 } 1068 1069 1070 /* 1071 * Jump sync_period up by one, but stop at 5MHz and fall back to Async. 1072 * We don't try to remember 'last' settings to see if the SIM actually 1073 * gets into the speed we want to set. We check on the SIM telling 1074 * us that a requested speed is bad, but otherwise don't try and 1075 * check the speed due to the asynchronous and handshake nature 1076 * of speed setting. 1077 */ 1078 spi->valid = CTS_SPI_VALID_SYNC_RATE | CTS_SPI_VALID_SYNC_OFFSET; 1079 for (;;) { 1080 spi->sync_period++; 1081 if (spi->sync_period >= 0xf) { 1082 spi->sync_period = 0; 1083 spi->sync_offset = 0; 1084 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1085 ("setting to async for DV\n")); 1086 /* 1087 * Once we hit async, we don't want to try 1088 * any more settings. 1089 */ 1090 device->flags |= CAM_DEV_DV_HIT_BOTTOM; 1091 } else if (bootverbose) { 1092 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1093 ("DV: period 0x%x\n", spi->sync_period)); 1094 printf("setting period to 0x%x\n", spi->sync_period); 1095 } 1096 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1097 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1098 xpt_action((union ccb *)&cts); 1099 if ((cts.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1100 break; 1101 } 1102 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1103 ("DV: failed to set period 0x%x\n", spi->sync_period)); 1104 if (spi->sync_period == 0) { 1105 return (0); 1106 } 1107 } 1108 return (1); 1109 } 1110 1111 #define CCB_COMPLETED_OK(ccb) (((ccb).status & CAM_STATUS_MASK) == CAM_REQ_CMP) 1112 1113 static void 1114 probedone(struct cam_periph *periph, union ccb *done_ccb) 1115 { 1116 probe_softc *softc; 1117 struct cam_path *path; 1118 u_int32_t priority; 1119 1120 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_TRACE, ("probedone\n")); 1121 1122 softc = (probe_softc *)periph->softc; 1123 path = done_ccb->ccb_h.path; 1124 priority = done_ccb->ccb_h.pinfo.priority; 1125 1126 switch (softc->action) { 1127 case PROBE_TUR: 1128 { 1129 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1130 1131 if (cam_periph_error(done_ccb, 0, 1132 SF_NO_PRINT, NULL) == ERESTART) 1133 return; 1134 else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1135 /* Don't wedge the queue */ 1136 xpt_release_devq(done_ccb->ccb_h.path, 1137 /*count*/1, 1138 /*run_queue*/TRUE); 1139 } 1140 PROBE_SET_ACTION(softc, PROBE_INQUIRY); 1141 xpt_release_ccb(done_ccb); 1142 xpt_schedule(periph, priority); 1143 return; 1144 } 1145 case PROBE_INQUIRY: 1146 case PROBE_FULL_INQUIRY: 1147 { 1148 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1149 struct scsi_inquiry_data *inq_buf; 1150 u_int8_t periph_qual; 1151 1152 path->device->flags |= CAM_DEV_INQUIRY_DATA_VALID; 1153 inq_buf = &path->device->inq_data; 1154 1155 periph_qual = SID_QUAL(inq_buf); 1156 1157 if (periph_qual == SID_QUAL_LU_CONNECTED) { 1158 u_int8_t len; 1159 1160 /* 1161 * We conservatively request only 1162 * SHORT_INQUIRY_LEN bytes of inquiry 1163 * information during our first try 1164 * at sending an INQUIRY. If the device 1165 * has more information to give, 1166 * perform a second request specifying 1167 * the amount of information the device 1168 * is willing to give. 1169 */ 1170 len = inq_buf->additional_length 1171 + offsetof(struct scsi_inquiry_data, 1172 additional_length) + 1; 1173 if (softc->action == PROBE_INQUIRY 1174 && len > SHORT_INQUIRY_LENGTH) { 1175 PROBE_SET_ACTION(softc, PROBE_FULL_INQUIRY); 1176 xpt_release_ccb(done_ccb); 1177 xpt_schedule(periph, priority); 1178 return; 1179 } 1180 1181 scsi_find_quirk(path->device); 1182 1183 scsi_devise_transport(path); 1184 1185 if (path->device->lun_id == 0 && 1186 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1187 (SCSI_QUIRK(path->device)->quirks & 1188 CAM_QUIRK_NORPTLUNS) == 0) { 1189 PROBE_SET_ACTION(softc, 1190 PROBE_REPORT_LUNS); 1191 /* 1192 * Start with room for *one* lun. 1193 */ 1194 periph->path->target->rpl_size = 16; 1195 } else if (INQ_DATA_TQ_ENABLED(inq_buf)) 1196 PROBE_SET_ACTION(softc, 1197 PROBE_MODE_SENSE); 1198 else 1199 PROBE_SET_ACTION(softc, 1200 PROBE_SUPPORTED_VPD_LIST); 1201 1202 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1203 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1204 xpt_acquire_device(path->device); 1205 } 1206 xpt_release_ccb(done_ccb); 1207 xpt_schedule(periph, priority); 1208 return; 1209 } else if (path->device->lun_id == 0 && 1210 SID_ANSI_REV(inq_buf) > SCSI_REV_SPC2 && 1211 (SCSI_QUIRK(path->device)->quirks & 1212 CAM_QUIRK_NORPTLUNS) == 0) { 1213 if (path->device->flags & 1214 CAM_DEV_UNCONFIGURED) { 1215 path->device->flags &= 1216 ~CAM_DEV_UNCONFIGURED; 1217 xpt_acquire_device(path->device); 1218 } 1219 PROBE_SET_ACTION(softc, PROBE_REPORT_LUNS); 1220 periph->path->target->rpl_size = 16; 1221 xpt_release_ccb(done_ccb); 1222 xpt_schedule(periph, priority); 1223 return; 1224 } 1225 } else if (cam_periph_error(done_ccb, 0, 1226 done_ccb->ccb_h.target_lun > 0 1227 ? SF_RETRY_UA|SF_QUIET_IR 1228 : SF_RETRY_UA, 1229 &softc->saved_ccb) == ERESTART) { 1230 return; 1231 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1232 /* Don't wedge the queue */ 1233 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1234 /*run_queue*/TRUE); 1235 } 1236 /* 1237 * If we get to this point, we got an error status back 1238 * from the inquiry and the error status doesn't require 1239 * automatically retrying the command. Therefore, the 1240 * inquiry failed. If we had inquiry information before 1241 * for this device, but this latest inquiry command failed, 1242 * the device has probably gone away. If this device isn't 1243 * already marked unconfigured, notify the peripheral 1244 * drivers that this device is no more. 1245 */ 1246 if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) 1247 /* Send the async notification. */ 1248 xpt_async(AC_LOST_DEVICE, path, NULL); 1249 1250 xpt_release_ccb(done_ccb); 1251 break; 1252 } 1253 case PROBE_REPORT_LUNS: 1254 { 1255 struct ccb_scsiio *csio; 1256 struct scsi_report_luns_data *lp; 1257 u_int nlun, maxlun; 1258 1259 csio = &done_ccb->csio; 1260 1261 lp = (struct scsi_report_luns_data *)csio->data_ptr; 1262 nlun = scsi_4btoul(lp->length) / 8; 1263 maxlun = (csio->dxfer_len / 8) - 1; 1264 1265 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1266 if (cam_periph_error(done_ccb, 0, 1267 done_ccb->ccb_h.target_lun > 0 ? 1268 SF_RETRY_UA|SF_QUIET_IR : SF_RETRY_UA, 1269 &softc->saved_ccb) == ERESTART) { 1270 return; 1271 } 1272 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1273 xpt_release_devq(done_ccb->ccb_h.path, 1, 1274 TRUE); 1275 } 1276 free(lp, M_CAMXPT); 1277 lp = NULL; 1278 } else if (nlun > maxlun) { 1279 /* 1280 * Reallocate and retry to cover all luns 1281 */ 1282 CAM_DEBUG_PATH_PRINT(CAM_DEBUG_PROBE, path, 1283 ("reallocating REPORT_LUNS for %u luns\n", nlun)); 1284 free(lp, M_CAMXPT); 1285 path->target->rpl_size = (nlun << 3) + 8; 1286 xpt_release_ccb(done_ccb); 1287 xpt_schedule(periph, priority); 1288 return; 1289 } else if (nlun == 0) { 1290 /* 1291 * If there don't appear to be any luns, bail. 1292 */ 1293 free(lp, M_CAMXPT); 1294 lp = NULL; 1295 } else if (probe_strange_rpl_data(lp, maxlun)) { 1296 /* 1297 * If we can't understand the lun format 1298 * of any entry, bail. 1299 */ 1300 free(lp, M_CAMXPT); 1301 lp = NULL; 1302 } else { 1303 lun_id_t lun; 1304 int idx; 1305 1306 CAM_DEBUG_PATH_PRINT(CAM_DEBUG_PROBE, path, 1307 ("%u luns reported\n", nlun)); 1308 1309 CAM_GET_SIMPLE_LUN(lp, 0, lun); 1310 /* 1311 * If the first lun is not lun 0, then either there 1312 * is no lun 0 in the list, or the list is unsorted. 1313 */ 1314 if (lun != 0) { 1315 for (idx = 0; idx < nlun; idx++) { 1316 CAM_GET_SIMPLE_LUN(lp, idx, lun); 1317 if (lun == 0) { 1318 break; 1319 } 1320 } 1321 if (idx != nlun) { 1322 uint8_t tlun[8]; 1323 memcpy(tlun, 1324 lp->luns[0].lundata, 8); 1325 memcpy(lp->luns[0].lundata, 1326 lp->luns[idx].lundata, 8); 1327 memcpy(lp->luns[idx].lundata, 1328 tlun, 8); 1329 CAM_DEBUG_PATH_PRINT(CAM_DEBUG_PROBE, 1330 path, ("lun 0 in position %u\n", idx)); 1331 } else { 1332 /* 1333 * There is no lun 0 in our list. Destroy 1334 * the validity of the inquiry data so we 1335 * bail here and now. 1336 */ 1337 path->device->flags &= 1338 ~CAM_DEV_INQUIRY_DATA_VALID; 1339 } 1340 } 1341 /* 1342 * If we have an old lun list, We can either 1343 * retest luns that appear to have been dropped, 1344 * or just nuke them. We'll opt for the latter. 1345 * This function will also install the new list 1346 * in the target structure. 1347 */ 1348 probe_purge_old(path, lp); 1349 lp = NULL; 1350 } 1351 if (path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) { 1352 struct scsi_inquiry_data *inq_buf; 1353 inq_buf = &path->device->inq_data; 1354 if (INQ_DATA_TQ_ENABLED(inq_buf)) 1355 PROBE_SET_ACTION(softc, PROBE_MODE_SENSE); 1356 else 1357 PROBE_SET_ACTION(softc, 1358 PROBE_SUPPORTED_VPD_LIST); 1359 xpt_release_ccb(done_ccb); 1360 xpt_schedule(periph, priority); 1361 return; 1362 } 1363 if (lp) { 1364 free(lp, M_CAMXPT); 1365 } 1366 break; 1367 } 1368 case PROBE_MODE_SENSE: 1369 { 1370 struct ccb_scsiio *csio; 1371 struct scsi_mode_header_6 *mode_hdr; 1372 1373 csio = &done_ccb->csio; 1374 mode_hdr = (struct scsi_mode_header_6 *)csio->data_ptr; 1375 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1376 struct scsi_control_page *page; 1377 u_int8_t *offset; 1378 1379 offset = ((u_int8_t *)&mode_hdr[1]) 1380 + mode_hdr->blk_desc_len; 1381 page = (struct scsi_control_page *)offset; 1382 path->device->queue_flags = page->queue_flags; 1383 } else if (cam_periph_error(done_ccb, 0, 1384 SF_RETRY_UA|SF_NO_PRINT, 1385 &softc->saved_ccb) == ERESTART) { 1386 return; 1387 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1388 /* Don't wedge the queue */ 1389 xpt_release_devq(done_ccb->ccb_h.path, 1390 /*count*/1, /*run_queue*/TRUE); 1391 } 1392 xpt_release_ccb(done_ccb); 1393 free(mode_hdr, M_CAMXPT); 1394 PROBE_SET_ACTION(softc, PROBE_SUPPORTED_VPD_LIST); 1395 xpt_schedule(periph, priority); 1396 return; 1397 } 1398 case PROBE_SUPPORTED_VPD_LIST: 1399 { 1400 struct ccb_scsiio *csio; 1401 struct scsi_vpd_supported_page_list *page_list; 1402 1403 csio = &done_ccb->csio; 1404 page_list = 1405 (struct scsi_vpd_supported_page_list *)csio->data_ptr; 1406 1407 if (path->device->supported_vpds != NULL) { 1408 free(path->device->supported_vpds, M_CAMXPT); 1409 path->device->supported_vpds = NULL; 1410 path->device->supported_vpds_len = 0; 1411 } 1412 1413 if (page_list == NULL) { 1414 /* 1415 * Don't process the command as it was never sent 1416 */ 1417 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1418 /* Got vpd list */ 1419 path->device->supported_vpds_len = page_list->length + 1420 SVPD_SUPPORTED_PAGES_HDR_LEN; 1421 path->device->supported_vpds = (uint8_t *)page_list; 1422 xpt_release_ccb(done_ccb); 1423 PROBE_SET_ACTION(softc, PROBE_DEVICE_ID); 1424 xpt_schedule(periph, priority); 1425 return; 1426 } else if (cam_periph_error(done_ccb, 0, 1427 SF_RETRY_UA|SF_NO_PRINT, 1428 &softc->saved_ccb) == ERESTART) { 1429 return; 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, /*count*/1, 1433 /*run_queue*/TRUE); 1434 } 1435 1436 if (page_list) 1437 free(page_list, M_CAMXPT); 1438 /* No VPDs available, skip to device check. */ 1439 csio->data_ptr = NULL; 1440 goto probe_device_check; 1441 } 1442 case PROBE_DEVICE_ID: 1443 { 1444 struct scsi_vpd_device_id *devid; 1445 struct ccb_scsiio *csio; 1446 uint32_t length = 0; 1447 1448 csio = &done_ccb->csio; 1449 devid = (struct scsi_vpd_device_id *)csio->data_ptr; 1450 1451 /* Clean up from previous instance of this device */ 1452 if (path->device->device_id != NULL) { 1453 path->device->device_id_len = 0; 1454 free(path->device->device_id, M_CAMXPT); 1455 path->device->device_id = NULL; 1456 } 1457 1458 if (devid == NULL) { 1459 /* Don't process the command as it was never sent */ 1460 } else if (CCB_COMPLETED_OK(csio->ccb_h)) { 1461 length = scsi_2btoul(devid->length); 1462 if (length != 0) { 1463 /* 1464 * NB: device_id_len is actual response 1465 * size, not buffer size. 1466 */ 1467 path->device->device_id_len = length + 1468 SVPD_DEVICE_ID_HDR_LEN; 1469 path->device->device_id = (uint8_t *)devid; 1470 } 1471 } else if (cam_periph_error(done_ccb, 0, 1472 SF_RETRY_UA, 1473 &softc->saved_ccb) == ERESTART) { 1474 return; 1475 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1476 /* Don't wedge the queue */ 1477 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1478 /*run_queue*/TRUE); 1479 } 1480 1481 /* Free the device id space if we don't use it */ 1482 if (devid && length == 0) 1483 free(devid, M_CAMXPT); 1484 xpt_release_ccb(done_ccb); 1485 PROBE_SET_ACTION(softc, PROBE_SERIAL_NUM); 1486 xpt_schedule(periph, priority); 1487 return; 1488 } 1489 1490 probe_device_check: 1491 case PROBE_SERIAL_NUM: 1492 { 1493 struct ccb_scsiio *csio; 1494 struct scsi_vpd_unit_serial_number *serial_buf; 1495 u_int32_t priority; 1496 int changed; 1497 int have_serialnum; 1498 1499 changed = 1; 1500 have_serialnum = 0; 1501 csio = &done_ccb->csio; 1502 priority = done_ccb->ccb_h.pinfo.priority; 1503 serial_buf = 1504 (struct scsi_vpd_unit_serial_number *)csio->data_ptr; 1505 1506 if (serial_buf == NULL) { 1507 /* 1508 * Don't process the command as it was never sent 1509 */ 1510 } else if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP 1511 && (serial_buf->length > 0)) { 1512 1513 have_serialnum = 1; 1514 path->device->serial_num = 1515 (u_int8_t *)malloc((serial_buf->length + 1), 1516 M_CAMXPT, M_NOWAIT); 1517 if (path->device->serial_num != NULL) { 1518 memcpy(path->device->serial_num, 1519 serial_buf->serial_num, 1520 serial_buf->length); 1521 path->device->serial_num_len = 1522 serial_buf->length; 1523 path->device->serial_num[serial_buf->length] 1524 = '\0'; 1525 } 1526 } else if (cam_periph_error(done_ccb, 0, 1527 SF_RETRY_UA|SF_NO_PRINT, 1528 &softc->saved_ccb) == ERESTART) { 1529 return; 1530 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1531 /* Don't wedge the queue */ 1532 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1533 /*run_queue*/TRUE); 1534 } 1535 1536 /* 1537 * Let's see if we have seen this device before. 1538 */ 1539 if ((softc->flags & PROBE_INQUIRY_CKSUM) != 0) { 1540 MD5_CTX context; 1541 u_int8_t digest[16]; 1542 1543 MD5Init(&context); 1544 1545 MD5Update(&context, 1546 (unsigned char *)&path->device->inq_data, 1547 sizeof(struct scsi_inquiry_data)); 1548 1549 if (have_serialnum) 1550 MD5Update(&context, serial_buf->serial_num, 1551 serial_buf->length); 1552 1553 MD5Final(digest, &context); 1554 if (bcmp(softc->digest, digest, 16) == 0) 1555 changed = 0; 1556 1557 /* 1558 * XXX Do we need to do a TUR in order to ensure 1559 * that the device really hasn't changed??? 1560 */ 1561 if ((changed != 0) 1562 && ((softc->flags & PROBE_NO_ANNOUNCE) == 0)) 1563 xpt_async(AC_LOST_DEVICE, path, NULL); 1564 } 1565 if (serial_buf != NULL) 1566 free(serial_buf, M_CAMXPT); 1567 1568 if (changed != 0) { 1569 /* 1570 * Now that we have all the necessary 1571 * information to safely perform transfer 1572 * negotiations... Controllers don't perform 1573 * any negotiation or tagged queuing until 1574 * after the first XPT_SET_TRAN_SETTINGS ccb is 1575 * received. So, on a new device, just retrieve 1576 * the user settings, and set them as the current 1577 * settings to set the device up. 1578 */ 1579 proberequestdefaultnegotiation(periph); 1580 xpt_release_ccb(done_ccb); 1581 1582 /* 1583 * Perform a TUR to allow the controller to 1584 * perform any necessary transfer negotiation. 1585 */ 1586 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1587 xpt_schedule(periph, priority); 1588 return; 1589 } 1590 xpt_release_ccb(done_ccb); 1591 break; 1592 } 1593 case PROBE_TUR_FOR_NEGOTIATION: 1594 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1595 DELAY(500000); 1596 if (cam_periph_error(done_ccb, 0, SF_RETRY_UA, 1597 NULL) == ERESTART) 1598 return; 1599 } 1600 /* FALLTHROUGH */ 1601 case PROBE_DV_EXIT: 1602 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1603 /* Don't wedge the queue */ 1604 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1605 /*run_queue*/TRUE); 1606 } 1607 /* 1608 * Do Domain Validation for lun 0 on devices that claim 1609 * to support Synchronous Transfer modes. 1610 */ 1611 if (softc->action == PROBE_TUR_FOR_NEGOTIATION 1612 && done_ccb->ccb_h.target_lun == 0 1613 && (path->device->inq_data.flags & SID_Sync) != 0 1614 && (path->device->flags & CAM_DEV_IN_DV) == 0) { 1615 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1616 ("Begin Domain Validation\n")); 1617 path->device->flags |= CAM_DEV_IN_DV; 1618 xpt_release_ccb(done_ccb); 1619 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV1); 1620 xpt_schedule(periph, priority); 1621 return; 1622 } 1623 if (softc->action == PROBE_DV_EXIT) { 1624 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1625 ("Leave Domain Validation\n")); 1626 } 1627 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1628 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1629 xpt_acquire_device(path->device); 1630 } 1631 path->device->flags &= 1632 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1633 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1634 /* Inform the XPT that a new device has been found */ 1635 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1636 xpt_action(done_ccb); 1637 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1638 done_ccb); 1639 } 1640 xpt_release_ccb(done_ccb); 1641 break; 1642 case PROBE_INQUIRY_BASIC_DV1: 1643 case PROBE_INQUIRY_BASIC_DV2: 1644 { 1645 struct scsi_inquiry_data *nbuf; 1646 struct ccb_scsiio *csio; 1647 1648 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1649 /* Don't wedge the queue */ 1650 xpt_release_devq(done_ccb->ccb_h.path, /*count*/1, 1651 /*run_queue*/TRUE); 1652 } 1653 csio = &done_ccb->csio; 1654 nbuf = (struct scsi_inquiry_data *)csio->data_ptr; 1655 if (bcmp(nbuf, &path->device->inq_data, SHORT_INQUIRY_LENGTH)) { 1656 xpt_print(path, 1657 "inquiry data fails comparison at DV%d step\n", 1658 softc->action == PROBE_INQUIRY_BASIC_DV1 ? 1 : 2); 1659 if (proberequestbackoff(periph, path->device)) { 1660 path->device->flags &= ~CAM_DEV_IN_DV; 1661 PROBE_SET_ACTION(softc, PROBE_TUR_FOR_NEGOTIATION); 1662 } else { 1663 /* give up */ 1664 PROBE_SET_ACTION(softc, PROBE_DV_EXIT); 1665 } 1666 free(nbuf, M_CAMXPT); 1667 xpt_release_ccb(done_ccb); 1668 xpt_schedule(periph, priority); 1669 return; 1670 } 1671 free(nbuf, M_CAMXPT); 1672 if (softc->action == PROBE_INQUIRY_BASIC_DV1) { 1673 PROBE_SET_ACTION(softc, PROBE_INQUIRY_BASIC_DV2); 1674 xpt_release_ccb(done_ccb); 1675 xpt_schedule(periph, priority); 1676 return; 1677 } 1678 if (softc->action == PROBE_INQUIRY_BASIC_DV2) { 1679 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1680 ("Leave Domain Validation Successfully\n")); 1681 } 1682 if (path->device->flags & CAM_DEV_UNCONFIGURED) { 1683 path->device->flags &= ~CAM_DEV_UNCONFIGURED; 1684 xpt_acquire_device(path->device); 1685 } 1686 path->device->flags &= 1687 ~(CAM_DEV_IN_DV|CAM_DEV_DV_HIT_BOTTOM); 1688 if ((softc->flags & PROBE_NO_ANNOUNCE) == 0) { 1689 /* Inform the XPT that a new device has been found */ 1690 done_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 1691 xpt_action(done_ccb); 1692 xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, 1693 done_ccb); 1694 } 1695 xpt_release_ccb(done_ccb); 1696 break; 1697 } 1698 case PROBE_INVALID: 1699 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_INFO, 1700 ("probedone: invalid action state\n")); 1701 default: 1702 break; 1703 } 1704 done_ccb = (union ccb *)TAILQ_FIRST(&softc->request_ccbs); 1705 TAILQ_REMOVE(&softc->request_ccbs, &done_ccb->ccb_h, periph_links.tqe); 1706 done_ccb->ccb_h.status = CAM_REQ_CMP; 1707 xpt_done(done_ccb); 1708 if (TAILQ_FIRST(&softc->request_ccbs) == NULL) { 1709 cam_release_devq(periph->path, 1710 RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_XPT + 1, FALSE); 1711 cam_periph_invalidate(periph); 1712 cam_periph_release_locked(periph); 1713 } else { 1714 probeschedule(periph); 1715 } 1716 } 1717 1718 static int 1719 probe_strange_rpl_data(struct scsi_report_luns_data *rp, uint32_t maxlun) 1720 { 1721 uint32_t idx; 1722 uint32_t nlun = MIN(maxlun, (scsi_4btoul(rp->length) / 8)); 1723 1724 for (idx = 0; idx < nlun; idx++) { 1725 if (!CAM_CAN_GET_SIMPLE_LUN(rp, idx)) { 1726 return (-1); 1727 } 1728 } 1729 return (0); 1730 } 1731 1732 static void 1733 probe_purge_old(struct cam_path *path, struct scsi_report_luns_data *new) 1734 { 1735 struct cam_path *tp; 1736 struct scsi_report_luns_data *old; 1737 u_int idx1, idx2, nlun_old, nlun_new, this_lun; 1738 u_int8_t *ol, *nl; 1739 1740 if (path->target == NULL) { 1741 return; 1742 } 1743 if (path->target->luns == NULL) { 1744 path->target->luns = new; 1745 return; 1746 } 1747 old = path->target->luns; 1748 nlun_old = scsi_4btoul(old->length) / 8; 1749 nlun_new = scsi_4btoul(new->length) / 8; 1750 1751 /* 1752 * We are not going to assume sorted lists. Deal. 1753 */ 1754 for (idx1 = 0; idx1 < nlun_old; idx1++) { 1755 ol = old->luns[idx1].lundata; 1756 for (idx2 = 0; idx2 < nlun_new; idx2++) { 1757 nl = new->luns[idx2].lundata; 1758 if (memcmp(nl, ol, 8) == 0) { 1759 break; 1760 } 1761 } 1762 if (idx2 < nlun_new) { 1763 continue; 1764 } 1765 /* 1766 * An 'old' item not in the 'new' list. 1767 * Nuke it. Except that if it is lun 0, 1768 * that would be what the probe state 1769 * machine is currently working on, 1770 * so we won't do that. 1771 * 1772 * We also cannot nuke it if it is 1773 * not in a lun format we understand. 1774 */ 1775 if (!CAM_CAN_GET_SIMPLE_LUN(old, idx1)) { 1776 continue; 1777 } 1778 CAM_GET_SIMPLE_LUN(old, idx1, this_lun); 1779 if (this_lun == 0) { 1780 continue; 1781 } 1782 if (xpt_create_path(&tp, NULL, xpt_path_path_id(path), 1783 xpt_path_target_id(path), this_lun) == CAM_REQ_CMP) { 1784 xpt_async(AC_LOST_DEVICE, tp, NULL); 1785 xpt_free_path(tp); 1786 } 1787 } 1788 free(old, M_CAMXPT); 1789 path->target->luns = new; 1790 } 1791 1792 static void 1793 probecleanup(struct cam_periph *periph) 1794 { 1795 free(periph->softc, M_CAMXPT); 1796 } 1797 1798 static void 1799 scsi_find_quirk(struct cam_ed *device) 1800 { 1801 struct scsi_quirk_entry *quirk; 1802 caddr_t match; 1803 1804 match = cam_quirkmatch((caddr_t)&device->inq_data, 1805 (caddr_t)scsi_quirk_table, 1806 sizeof(scsi_quirk_table) / 1807 sizeof(*scsi_quirk_table), 1808 sizeof(*scsi_quirk_table), scsi_inquiry_match); 1809 1810 if (match == NULL) 1811 panic("xpt_find_quirk: device didn't match wildcard entry!!"); 1812 1813 quirk = (struct scsi_quirk_entry *)match; 1814 device->quirk = quirk; 1815 device->mintags = quirk->mintags; 1816 device->maxtags = quirk->maxtags; 1817 } 1818 1819 static int 1820 sysctl_cam_search_luns(SYSCTL_HANDLER_ARGS) 1821 { 1822 int error, val; 1823 1824 val = cam_srch_hi; 1825 error = sysctl_handle_int(oidp, &val, 0, req); 1826 if (error != 0 || req->newptr == NULL) 1827 return (error); 1828 if (val == 0 || val == 1) { 1829 cam_srch_hi = val; 1830 return (0); 1831 } else { 1832 return (EINVAL); 1833 } 1834 } 1835 1836 typedef struct { 1837 union ccb *request_ccb; 1838 struct ccb_pathinq *cpi; 1839 int counter; 1840 int lunindex[0]; 1841 } scsi_scan_bus_info; 1842 1843 /* 1844 * To start a scan, request_ccb is an XPT_SCAN_BUS ccb. 1845 * As the scan progresses, scsi_scan_bus is used as the 1846 * callback on completion function. 1847 */ 1848 static void 1849 scsi_scan_bus(struct cam_periph *periph, union ccb *request_ccb) 1850 { 1851 CAM_DEBUG(request_ccb->ccb_h.path, CAM_DEBUG_TRACE, 1852 ("scsi_scan_bus\n")); 1853 switch (request_ccb->ccb_h.func_code) { 1854 case XPT_SCAN_BUS: 1855 case XPT_SCAN_TGT: 1856 { 1857 scsi_scan_bus_info *scan_info; 1858 union ccb *work_ccb, *reset_ccb; 1859 struct cam_path *path; 1860 u_int i; 1861 u_int low_target, max_target; 1862 u_int initiator_id; 1863 1864 /* Find out the characteristics of the bus */ 1865 work_ccb = xpt_alloc_ccb_nowait(); 1866 if (work_ccb == NULL) { 1867 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1868 xpt_done(request_ccb); 1869 return; 1870 } 1871 xpt_setup_ccb(&work_ccb->ccb_h, request_ccb->ccb_h.path, 1872 request_ccb->ccb_h.pinfo.priority); 1873 work_ccb->ccb_h.func_code = XPT_PATH_INQ; 1874 xpt_action(work_ccb); 1875 if (work_ccb->ccb_h.status != CAM_REQ_CMP) { 1876 request_ccb->ccb_h.status = work_ccb->ccb_h.status; 1877 xpt_free_ccb(work_ccb); 1878 xpt_done(request_ccb); 1879 return; 1880 } 1881 1882 if ((work_ccb->cpi.hba_misc & PIM_NOINITIATOR) != 0) { 1883 /* 1884 * Can't scan the bus on an adapter that 1885 * cannot perform the initiator role. 1886 */ 1887 request_ccb->ccb_h.status = CAM_REQ_CMP; 1888 xpt_free_ccb(work_ccb); 1889 xpt_done(request_ccb); 1890 return; 1891 } 1892 1893 /* We may need to reset bus first, if we haven't done it yet. */ 1894 if ((work_ccb->cpi.hba_inquiry & 1895 (PI_WIDE_32|PI_WIDE_16|PI_SDTR_ABLE)) && 1896 !(work_ccb->cpi.hba_misc & PIM_NOBUSRESET) && 1897 !timevalisset(&request_ccb->ccb_h.path->bus->last_reset)) { 1898 reset_ccb = xpt_alloc_ccb_nowait(); 1899 xpt_setup_ccb(&reset_ccb->ccb_h, request_ccb->ccb_h.path, 1900 CAM_PRIORITY_NONE); 1901 reset_ccb->ccb_h.func_code = XPT_RESET_BUS; 1902 xpt_action(reset_ccb); 1903 if (reset_ccb->ccb_h.status != CAM_REQ_CMP) { 1904 request_ccb->ccb_h.status = reset_ccb->ccb_h.status; 1905 xpt_free_ccb(reset_ccb); 1906 xpt_free_ccb(work_ccb); 1907 xpt_done(request_ccb); 1908 return; 1909 } 1910 xpt_free_ccb(reset_ccb); 1911 } 1912 1913 /* Save some state for use while we probe for devices */ 1914 scan_info = (scsi_scan_bus_info *) malloc(sizeof(scsi_scan_bus_info) + 1915 (work_ccb->cpi.max_target * sizeof (u_int)), M_CAMXPT, M_ZERO|M_NOWAIT); 1916 if (scan_info == NULL) { 1917 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1918 xpt_done(request_ccb); 1919 return; 1920 } 1921 CAM_DEBUG_PATH_PRINT(CAM_DEBUG_PROBE, request_ccb->ccb_h.path, 1922 ("SCAN start for %p\n", scan_info)); 1923 scan_info->request_ccb = request_ccb; 1924 scan_info->cpi = &work_ccb->cpi; 1925 1926 /* Cache on our stack so we can work asynchronously */ 1927 max_target = scan_info->cpi->max_target; 1928 low_target = 0; 1929 initiator_id = scan_info->cpi->initiator_id; 1930 1931 1932 /* 1933 * We can scan all targets in parallel, or do it sequentially. 1934 */ 1935 1936 if (request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 1937 max_target = low_target = request_ccb->ccb_h.target_id; 1938 scan_info->counter = 0; 1939 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 1940 max_target = 0; 1941 scan_info->counter = 0; 1942 } else { 1943 scan_info->counter = scan_info->cpi->max_target + 1; 1944 if (scan_info->cpi->initiator_id < scan_info->counter) { 1945 scan_info->counter--; 1946 } 1947 } 1948 1949 for (i = low_target; i <= max_target; i++) { 1950 cam_status status; 1951 if (i == initiator_id) 1952 continue; 1953 1954 status = xpt_create_path(&path, xpt_periph, 1955 request_ccb->ccb_h.path_id, 1956 i, 0); 1957 if (status != CAM_REQ_CMP) { 1958 printf("scsi_scan_bus: xpt_create_path failed" 1959 " with status %#x, bus scan halted\n", 1960 status); 1961 free(scan_info, M_CAMXPT); 1962 request_ccb->ccb_h.status = status; 1963 xpt_free_ccb(work_ccb); 1964 xpt_done(request_ccb); 1965 break; 1966 } 1967 work_ccb = xpt_alloc_ccb_nowait(); 1968 if (work_ccb == NULL) { 1969 xpt_free_ccb((union ccb *)scan_info->cpi); 1970 free(scan_info, M_CAMXPT); 1971 xpt_free_path(path); 1972 request_ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 1973 xpt_done(request_ccb); 1974 break; 1975 } 1976 xpt_setup_ccb(&work_ccb->ccb_h, path, 1977 request_ccb->ccb_h.pinfo.priority); 1978 work_ccb->ccb_h.func_code = XPT_SCAN_LUN; 1979 work_ccb->ccb_h.cbfcnp = scsi_scan_bus; 1980 work_ccb->ccb_h.ppriv_ptr0 = scan_info; 1981 work_ccb->crcn.flags = request_ccb->crcn.flags; 1982 xpt_action(work_ccb); 1983 } 1984 break; 1985 } 1986 case XPT_SCAN_LUN: 1987 { 1988 cam_status status; 1989 struct cam_path *path, *oldpath; 1990 scsi_scan_bus_info *scan_info; 1991 struct cam_et *target; 1992 struct cam_ed *device; 1993 int next_target; 1994 path_id_t path_id; 1995 target_id_t target_id; 1996 lun_id_t lun_id; 1997 1998 oldpath = request_ccb->ccb_h.path; 1999 2000 status = request_ccb->ccb_h.status & CAM_STATUS_MASK; 2001 /* Reuse the same CCB to query if a device was really found */ 2002 scan_info = (scsi_scan_bus_info *)request_ccb->ccb_h.ppriv_ptr0; 2003 xpt_setup_ccb(&request_ccb->ccb_h, request_ccb->ccb_h.path, 2004 request_ccb->ccb_h.pinfo.priority); 2005 request_ccb->ccb_h.func_code = XPT_GDEV_TYPE; 2006 2007 2008 path_id = request_ccb->ccb_h.path_id; 2009 target_id = request_ccb->ccb_h.target_id; 2010 lun_id = request_ccb->ccb_h.target_lun; 2011 xpt_action(request_ccb); 2012 2013 target = request_ccb->ccb_h.path->target; 2014 next_target = 1; 2015 2016 if (target->luns) { 2017 uint32_t first; 2018 u_int nluns = scsi_4btoul(target->luns->length) / 8; 2019 2020 /* 2021 * Make sure we skip over lun 0 if it's the first member 2022 * of the list as we've actually just finished probing 2023 * it. 2024 */ 2025 CAM_GET_SIMPLE_LUN(target->luns, 0, first); 2026 if (first == 0 && scan_info->lunindex[target_id] == 0) { 2027 scan_info->lunindex[target_id]++; 2028 } 2029 2030 if (scan_info->lunindex[target_id] < nluns) { 2031 CAM_GET_SIMPLE_LUN(target->luns, 2032 scan_info->lunindex[target_id], lun_id); 2033 next_target = 0; 2034 CAM_DEBUG_PATH_PRINT(CAM_DEBUG_PROBE, 2035 request_ccb->ccb_h.path, 2036 ("next lun to try at index %u is %u\n", 2037 scan_info->lunindex[target_id], lun_id)); 2038 scan_info->lunindex[target_id]++; 2039 } else { 2040 /* 2041 * We're done with scanning all luns. 2042 * 2043 * Nuke the bogus device for lun 0 if lun 0 2044 * wasn't on the list. 2045 */ 2046 if (first != 0) { 2047 TAILQ_FOREACH(device, 2048 &target->ed_entries, links) { 2049 if (device->lun_id == 0) { 2050 break; 2051 } 2052 } 2053 if (device) { 2054 xpt_release_device(device); 2055 } 2056 } 2057 } 2058 } else if (request_ccb->ccb_h.status != CAM_REQ_CMP) { 2059 int phl; 2060 2061 /* 2062 * If we already probed lun 0 successfully, or 2063 * we have additional configured luns on this 2064 * target that might have "gone away", go onto 2065 * the next lun. 2066 */ 2067 /* 2068 * We may touch devices that we don't 2069 * hold references too, so ensure they 2070 * don't disappear out from under us. 2071 * The target above is referenced by the 2072 * path in the request ccb. 2073 */ 2074 phl = 0; 2075 device = TAILQ_FIRST(&target->ed_entries); 2076 if (device != NULL) { 2077 phl = CAN_SRCH_HI_SPARSE(device); 2078 if (device->lun_id == 0) 2079 device = TAILQ_NEXT(device, links); 2080 } 2081 if ((lun_id != 0) || (device != NULL)) { 2082 if (lun_id < (CAM_SCSI2_MAXLUN-1) || phl) { 2083 lun_id++; 2084 next_target = 0; 2085 } 2086 } 2087 if (lun_id == request_ccb->ccb_h.target_lun 2088 || lun_id > scan_info->cpi->max_lun) 2089 next_target = 1; 2090 } else { 2091 2092 device = request_ccb->ccb_h.path->device; 2093 2094 if ((SCSI_QUIRK(device)->quirks & 2095 CAM_QUIRK_NOLUNS) == 0) { 2096 /* Try the next lun */ 2097 if (lun_id < (CAM_SCSI2_MAXLUN-1) 2098 || CAN_SRCH_HI_DENSE(device)) { 2099 lun_id++; 2100 next_target = 0; 2101 } 2102 } 2103 if (lun_id == request_ccb->ccb_h.target_lun 2104 || lun_id > scan_info->cpi->max_lun) 2105 next_target = 1; 2106 } 2107 2108 /* 2109 * Check to see if we scan any further luns. 2110 */ 2111 if (next_target) { 2112 int done; 2113 2114 /* 2115 * Free the current request path- we're done with it. 2116 */ 2117 xpt_free_path(oldpath); 2118 hop_again: 2119 done = 0; 2120 if (scan_info->request_ccb->ccb_h.func_code == XPT_SCAN_TGT) { 2121 done = 1; 2122 } else if (scan_info->cpi->hba_misc & PIM_SEQSCAN) { 2123 scan_info->counter++; 2124 if (scan_info->counter == 2125 scan_info->cpi->initiator_id) { 2126 scan_info->counter++; 2127 } 2128 if (scan_info->counter >= 2129 scan_info->cpi->max_target+1) { 2130 done = 1; 2131 } 2132 } else { 2133 scan_info->counter--; 2134 if (scan_info->counter == 0) { 2135 done = 1; 2136 } 2137 } 2138 if (done) { 2139 xpt_free_ccb(request_ccb); 2140 xpt_free_ccb((union ccb *)scan_info->cpi); 2141 request_ccb = scan_info->request_ccb; 2142 CAM_DEBUG_PATH_PRINT(CAM_DEBUG_PROBE, 2143 request_ccb->ccb_h.path, 2144 ("SCAN done for %p\n", scan_info)); 2145 free(scan_info, M_CAMXPT); 2146 request_ccb->ccb_h.status = CAM_REQ_CMP; 2147 xpt_done(request_ccb); 2148 break; 2149 } 2150 2151 if ((scan_info->cpi->hba_misc & PIM_SEQSCAN) == 0) { 2152 xpt_free_ccb(request_ccb); 2153 break; 2154 } 2155 status = xpt_create_path(&path, xpt_periph, 2156 scan_info->request_ccb->ccb_h.path_id, 2157 scan_info->counter, 0); 2158 if (status != CAM_REQ_CMP) { 2159 printf("scsi_scan_bus: xpt_create_path failed" 2160 " with status %#x, bus scan halted\n", 2161 status); 2162 xpt_free_ccb(request_ccb); 2163 xpt_free_ccb((union ccb *)scan_info->cpi); 2164 request_ccb = scan_info->request_ccb; 2165 free(scan_info, M_CAMXPT); 2166 request_ccb->ccb_h.status = status; 2167 xpt_done(request_ccb); 2168 break; 2169 } 2170 xpt_setup_ccb(&request_ccb->ccb_h, path, 2171 request_ccb->ccb_h.pinfo.priority); 2172 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2173 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2174 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2175 request_ccb->crcn.flags = 2176 scan_info->request_ccb->crcn.flags; 2177 } else { 2178 status = xpt_create_path(&path, xpt_periph, 2179 path_id, target_id, lun_id); 2180 /* 2181 * Free the old request path- we're done with it. We 2182 * do this *after* creating the new path so that 2183 * we don't remove a target that has our lun list 2184 * in the case that lun 0 is not present. 2185 */ 2186 xpt_free_path(oldpath); 2187 if (status != CAM_REQ_CMP) { 2188 printf("scsi_scan_bus: xpt_create_path failed " 2189 "with status %#x, halting LUN scan\n", 2190 status); 2191 goto hop_again; 2192 } 2193 xpt_setup_ccb(&request_ccb->ccb_h, path, 2194 request_ccb->ccb_h.pinfo.priority); 2195 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2196 request_ccb->ccb_h.cbfcnp = scsi_scan_bus; 2197 request_ccb->ccb_h.ppriv_ptr0 = scan_info; 2198 request_ccb->crcn.flags = 2199 scan_info->request_ccb->crcn.flags; 2200 } 2201 xpt_action(request_ccb); 2202 break; 2203 } 2204 default: 2205 break; 2206 } 2207 } 2208 2209 static void 2210 scsi_scan_lun(struct cam_periph *periph, struct cam_path *path, 2211 cam_flags flags, union ccb *request_ccb) 2212 { 2213 struct ccb_pathinq cpi; 2214 cam_status status; 2215 struct cam_path *new_path; 2216 struct cam_periph *old_periph; 2217 2218 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("scsi_scan_lun\n")); 2219 2220 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2221 cpi.ccb_h.func_code = XPT_PATH_INQ; 2222 xpt_action((union ccb *)&cpi); 2223 2224 if (cpi.ccb_h.status != CAM_REQ_CMP) { 2225 if (request_ccb != NULL) { 2226 request_ccb->ccb_h.status = cpi.ccb_h.status; 2227 xpt_done(request_ccb); 2228 } 2229 return; 2230 } 2231 2232 if ((cpi.hba_misc & PIM_NOINITIATOR) != 0) { 2233 /* 2234 * Can't scan the bus on an adapter that 2235 * cannot perform the initiator role. 2236 */ 2237 if (request_ccb != NULL) { 2238 request_ccb->ccb_h.status = CAM_REQ_CMP; 2239 xpt_done(request_ccb); 2240 } 2241 return; 2242 } 2243 2244 if (request_ccb == NULL) { 2245 request_ccb = malloc(sizeof(union ccb), M_CAMXPT, M_NOWAIT); 2246 if (request_ccb == NULL) { 2247 xpt_print(path, "scsi_scan_lun: can't allocate CCB, " 2248 "can't continue\n"); 2249 return; 2250 } 2251 new_path = malloc(sizeof(*new_path), M_CAMXPT, M_NOWAIT); 2252 if (new_path == NULL) { 2253 xpt_print(path, "scsi_scan_lun: can't allocate path, " 2254 "can't continue\n"); 2255 free(request_ccb, M_CAMXPT); 2256 return; 2257 } 2258 status = xpt_compile_path(new_path, xpt_periph, 2259 path->bus->path_id, 2260 path->target->target_id, 2261 path->device->lun_id); 2262 2263 if (status != CAM_REQ_CMP) { 2264 xpt_print(path, "scsi_scan_lun: can't compile path, " 2265 "can't continue\n"); 2266 free(request_ccb, M_CAMXPT); 2267 free(new_path, M_CAMXPT); 2268 return; 2269 } 2270 xpt_setup_ccb(&request_ccb->ccb_h, new_path, CAM_PRIORITY_XPT); 2271 request_ccb->ccb_h.cbfcnp = xptscandone; 2272 request_ccb->ccb_h.func_code = XPT_SCAN_LUN; 2273 request_ccb->crcn.flags = flags; 2274 } 2275 2276 if ((old_periph = cam_periph_find(path, "probe")) != NULL) { 2277 probe_softc *softc; 2278 2279 softc = (probe_softc *)old_periph->softc; 2280 TAILQ_INSERT_TAIL(&softc->request_ccbs, &request_ccb->ccb_h, 2281 periph_links.tqe); 2282 } else { 2283 status = cam_periph_alloc(proberegister, NULL, probecleanup, 2284 probestart, "probe", 2285 CAM_PERIPH_BIO, 2286 request_ccb->ccb_h.path, NULL, 0, 2287 request_ccb); 2288 2289 if (status != CAM_REQ_CMP) { 2290 xpt_print(path, "scsi_scan_lun: cam_alloc_periph " 2291 "returned an error, can't continue probe\n"); 2292 request_ccb->ccb_h.status = status; 2293 xpt_done(request_ccb); 2294 } 2295 } 2296 } 2297 2298 static void 2299 xptscandone(struct cam_periph *periph, union ccb *done_ccb) 2300 { 2301 xpt_release_path(done_ccb->ccb_h.path); 2302 free(done_ccb->ccb_h.path, M_CAMXPT); 2303 free(done_ccb, M_CAMXPT); 2304 } 2305 2306 static struct cam_ed * 2307 scsi_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id) 2308 { 2309 struct cam_path path; 2310 struct scsi_quirk_entry *quirk; 2311 struct cam_ed *device; 2312 struct cam_ed *cur_device; 2313 2314 device = xpt_alloc_device(bus, target, lun_id); 2315 if (device == NULL) 2316 return (NULL); 2317 2318 /* 2319 * Take the default quirk entry until we have inquiry 2320 * data and can determine a better quirk to use. 2321 */ 2322 quirk = &scsi_quirk_table[scsi_quirk_table_size - 1]; 2323 device->quirk = (void *)quirk; 2324 device->mintags = quirk->mintags; 2325 device->maxtags = quirk->maxtags; 2326 bzero(&device->inq_data, sizeof(device->inq_data)); 2327 device->inq_flags = 0; 2328 device->queue_flags = 0; 2329 device->serial_num = NULL; 2330 device->serial_num_len = 0; 2331 device->device_id = NULL; 2332 device->device_id_len = 0; 2333 device->supported_vpds = NULL; 2334 device->supported_vpds_len = 0; 2335 2336 /* 2337 * XXX should be limited by number of CCBs this bus can 2338 * do. 2339 */ 2340 bus->sim->max_ccbs += device->ccbq.devq_openings; 2341 /* Insertion sort into our target's device list */ 2342 cur_device = TAILQ_FIRST(&target->ed_entries); 2343 while (cur_device != NULL && cur_device->lun_id < lun_id) 2344 cur_device = TAILQ_NEXT(cur_device, links); 2345 if (cur_device != NULL) { 2346 TAILQ_INSERT_BEFORE(cur_device, device, links); 2347 } else { 2348 TAILQ_INSERT_TAIL(&target->ed_entries, device, links); 2349 } 2350 target->generation++; 2351 if (lun_id != CAM_LUN_WILDCARD) { 2352 xpt_compile_path(&path, 2353 NULL, 2354 bus->path_id, 2355 target->target_id, 2356 lun_id); 2357 scsi_devise_transport(&path); 2358 xpt_release_path(&path); 2359 } 2360 2361 return (device); 2362 } 2363 2364 static void 2365 scsi_devise_transport(struct cam_path *path) 2366 { 2367 struct ccb_pathinq cpi; 2368 struct ccb_trans_settings cts; 2369 struct scsi_inquiry_data *inq_buf; 2370 2371 /* Get transport information from the SIM */ 2372 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE); 2373 cpi.ccb_h.func_code = XPT_PATH_INQ; 2374 xpt_action((union ccb *)&cpi); 2375 2376 inq_buf = NULL; 2377 if ((path->device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0) 2378 inq_buf = &path->device->inq_data; 2379 path->device->protocol = PROTO_SCSI; 2380 path->device->protocol_version = 2381 inq_buf != NULL ? SID_ANSI_REV(inq_buf) : cpi.protocol_version; 2382 path->device->transport = cpi.transport; 2383 path->device->transport_version = cpi.transport_version; 2384 2385 /* 2386 * Any device not using SPI3 features should 2387 * be considered SPI2 or lower. 2388 */ 2389 if (inq_buf != NULL) { 2390 if (path->device->transport == XPORT_SPI 2391 && (inq_buf->spi3data & SID_SPI_MASK) == 0 2392 && path->device->transport_version > 2) 2393 path->device->transport_version = 2; 2394 } else { 2395 struct cam_ed* otherdev; 2396 2397 for (otherdev = TAILQ_FIRST(&path->target->ed_entries); 2398 otherdev != NULL; 2399 otherdev = TAILQ_NEXT(otherdev, links)) { 2400 if (otherdev != path->device) 2401 break; 2402 } 2403 2404 if (otherdev != NULL) { 2405 /* 2406 * Initially assume the same versioning as 2407 * prior luns for this target. 2408 */ 2409 path->device->protocol_version = 2410 otherdev->protocol_version; 2411 path->device->transport_version = 2412 otherdev->transport_version; 2413 } else { 2414 /* Until we know better, opt for safty */ 2415 path->device->protocol_version = 2; 2416 if (path->device->transport == XPORT_SPI) 2417 path->device->transport_version = 2; 2418 else 2419 path->device->transport_version = 0; 2420 } 2421 } 2422 2423 /* 2424 * XXX 2425 * For a device compliant with SPC-2 we should be able 2426 * to determine the transport version supported by 2427 * scrutinizing the version descriptors in the 2428 * inquiry buffer. 2429 */ 2430 2431 /* Tell the controller what we think */ 2432 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2433 cts.ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 2434 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2435 cts.transport = path->device->transport; 2436 cts.transport_version = path->device->transport_version; 2437 cts.protocol = path->device->protocol; 2438 cts.protocol_version = path->device->protocol_version; 2439 cts.proto_specific.valid = 0; 2440 cts.xport_specific.valid = 0; 2441 xpt_action((union ccb *)&cts); 2442 } 2443 2444 static void 2445 scsi_dev_advinfo(union ccb *start_ccb) 2446 { 2447 struct cam_ed *device; 2448 struct ccb_dev_advinfo *cdai; 2449 off_t amt; 2450 2451 start_ccb->ccb_h.status = CAM_REQ_INVALID; 2452 device = start_ccb->ccb_h.path->device; 2453 cdai = &start_ccb->cdai; 2454 switch(cdai->buftype) { 2455 case CDAI_TYPE_SCSI_DEVID: 2456 if (cdai->flags & CDAI_FLAG_STORE) 2457 return; 2458 cdai->provsiz = device->device_id_len; 2459 if (device->device_id_len == 0) 2460 break; 2461 amt = device->device_id_len; 2462 if (cdai->provsiz > cdai->bufsiz) 2463 amt = cdai->bufsiz; 2464 memcpy(cdai->buf, device->device_id, amt); 2465 break; 2466 case CDAI_TYPE_SERIAL_NUM: 2467 if (cdai->flags & CDAI_FLAG_STORE) 2468 return; 2469 cdai->provsiz = device->serial_num_len; 2470 if (device->serial_num_len == 0) 2471 break; 2472 amt = device->serial_num_len; 2473 if (cdai->provsiz > cdai->bufsiz) 2474 amt = cdai->bufsiz; 2475 memcpy(cdai->buf, device->serial_num, amt); 2476 break; 2477 case CDAI_TYPE_PHYS_PATH: 2478 if (cdai->flags & CDAI_FLAG_STORE) { 2479 if (device->physpath != NULL) { 2480 free(device->physpath, M_CAMXPT); 2481 device->physpath = NULL; 2482 } 2483 device->physpath_len = cdai->bufsiz; 2484 /* Clear existing buffer if zero length */ 2485 if (cdai->bufsiz == 0) 2486 break; 2487 device->physpath = malloc(cdai->bufsiz, M_CAMXPT, M_NOWAIT); 2488 if (device->physpath == NULL) { 2489 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2490 return; 2491 } 2492 memcpy(device->physpath, cdai->buf, cdai->bufsiz); 2493 } else { 2494 cdai->provsiz = device->physpath_len; 2495 if (device->physpath_len == 0) 2496 break; 2497 amt = device->physpath_len; 2498 if (cdai->provsiz > cdai->bufsiz) 2499 amt = cdai->bufsiz; 2500 memcpy(cdai->buf, device->physpath, amt); 2501 } 2502 break; 2503 case CDAI_TYPE_RCAPLONG: 2504 if (cdai->flags & CDAI_FLAG_STORE) { 2505 if (device->rcap_buf != NULL) { 2506 free(device->rcap_buf, M_CAMXPT); 2507 device->rcap_buf = NULL; 2508 } 2509 2510 device->rcap_len = cdai->bufsiz; 2511 /* Clear existing buffer if zero length */ 2512 if (cdai->bufsiz == 0) 2513 break; 2514 2515 device->rcap_buf = malloc(cdai->bufsiz, M_CAMXPT, 2516 M_NOWAIT); 2517 if (device->rcap_buf == NULL) { 2518 start_ccb->ccb_h.status = CAM_REQ_ABORTED; 2519 return; 2520 } 2521 2522 memcpy(device->rcap_buf, cdai->buf, cdai->bufsiz); 2523 } else { 2524 cdai->provsiz = device->rcap_len; 2525 if (device->rcap_len == 0) 2526 break; 2527 amt = device->rcap_len; 2528 if (cdai->provsiz > cdai->bufsiz) 2529 amt = cdai->bufsiz; 2530 memcpy(cdai->buf, device->rcap_buf, amt); 2531 } 2532 break; 2533 default: 2534 return; 2535 } 2536 start_ccb->ccb_h.status = CAM_REQ_CMP; 2537 2538 if (cdai->flags & CDAI_FLAG_STORE) { 2539 int owned; 2540 2541 owned = mtx_owned(start_ccb->ccb_h.path->bus->sim->mtx); 2542 if (owned == 0) 2543 mtx_lock(start_ccb->ccb_h.path->bus->sim->mtx); 2544 xpt_async(AC_ADVINFO_CHANGED, start_ccb->ccb_h.path, 2545 (void *)(uintptr_t)cdai->buftype); 2546 if (owned == 0) 2547 mtx_unlock(start_ccb->ccb_h.path->bus->sim->mtx); 2548 } 2549 } 2550 2551 static void 2552 scsi_action(union ccb *start_ccb) 2553 { 2554 2555 switch (start_ccb->ccb_h.func_code) { 2556 case XPT_SET_TRAN_SETTINGS: 2557 { 2558 scsi_set_transfer_settings(&start_ccb->cts, 2559 start_ccb->ccb_h.path->device, 2560 /*async_update*/FALSE); 2561 break; 2562 } 2563 case XPT_SCAN_BUS: 2564 case XPT_SCAN_TGT: 2565 scsi_scan_bus(start_ccb->ccb_h.path->periph, start_ccb); 2566 break; 2567 case XPT_SCAN_LUN: 2568 scsi_scan_lun(start_ccb->ccb_h.path->periph, 2569 start_ccb->ccb_h.path, start_ccb->crcn.flags, 2570 start_ccb); 2571 break; 2572 case XPT_GET_TRAN_SETTINGS: 2573 { 2574 struct cam_sim *sim; 2575 2576 sim = start_ccb->ccb_h.path->bus->sim; 2577 (*(sim->sim_action))(sim, start_ccb); 2578 break; 2579 } 2580 case XPT_DEV_ADVINFO: 2581 { 2582 scsi_dev_advinfo(start_ccb); 2583 break; 2584 } 2585 default: 2586 xpt_action_default(start_ccb); 2587 break; 2588 } 2589 } 2590 2591 static void 2592 scsi_set_transfer_settings(struct ccb_trans_settings *cts, struct cam_ed *device, 2593 int async_update) 2594 { 2595 struct ccb_pathinq cpi; 2596 struct ccb_trans_settings cur_cts; 2597 struct ccb_trans_settings_scsi *scsi; 2598 struct ccb_trans_settings_scsi *cur_scsi; 2599 struct cam_sim *sim; 2600 struct scsi_inquiry_data *inq_data; 2601 2602 if (device == NULL) { 2603 cts->ccb_h.status = CAM_PATH_INVALID; 2604 xpt_done((union ccb *)cts); 2605 return; 2606 } 2607 2608 if (cts->protocol == PROTO_UNKNOWN 2609 || cts->protocol == PROTO_UNSPECIFIED) { 2610 cts->protocol = device->protocol; 2611 cts->protocol_version = device->protocol_version; 2612 } 2613 2614 if (cts->protocol_version == PROTO_VERSION_UNKNOWN 2615 || cts->protocol_version == PROTO_VERSION_UNSPECIFIED) 2616 cts->protocol_version = device->protocol_version; 2617 2618 if (cts->protocol != device->protocol) { 2619 xpt_print(cts->ccb_h.path, "Uninitialized Protocol %x:%x?\n", 2620 cts->protocol, device->protocol); 2621 cts->protocol = device->protocol; 2622 } 2623 2624 if (cts->protocol_version > device->protocol_version) { 2625 if (bootverbose) { 2626 xpt_print(cts->ccb_h.path, "Down reving Protocol " 2627 "Version from %d to %d?\n", cts->protocol_version, 2628 device->protocol_version); 2629 } 2630 cts->protocol_version = device->protocol_version; 2631 } 2632 2633 if (cts->transport == XPORT_UNKNOWN 2634 || cts->transport == XPORT_UNSPECIFIED) { 2635 cts->transport = device->transport; 2636 cts->transport_version = device->transport_version; 2637 } 2638 2639 if (cts->transport_version == XPORT_VERSION_UNKNOWN 2640 || cts->transport_version == XPORT_VERSION_UNSPECIFIED) 2641 cts->transport_version = device->transport_version; 2642 2643 if (cts->transport != device->transport) { 2644 xpt_print(cts->ccb_h.path, "Uninitialized Transport %x:%x?\n", 2645 cts->transport, device->transport); 2646 cts->transport = device->transport; 2647 } 2648 2649 if (cts->transport_version > device->transport_version) { 2650 if (bootverbose) { 2651 xpt_print(cts->ccb_h.path, "Down reving Transport " 2652 "Version from %d to %d?\n", cts->transport_version, 2653 device->transport_version); 2654 } 2655 cts->transport_version = device->transport_version; 2656 } 2657 2658 sim = cts->ccb_h.path->bus->sim; 2659 2660 /* 2661 * Nothing more of interest to do unless 2662 * this is a device connected via the 2663 * SCSI protocol. 2664 */ 2665 if (cts->protocol != PROTO_SCSI) { 2666 if (async_update == FALSE) 2667 (*(sim->sim_action))(sim, (union ccb *)cts); 2668 return; 2669 } 2670 2671 inq_data = &device->inq_data; 2672 scsi = &cts->proto_specific.scsi; 2673 xpt_setup_ccb(&cpi.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NONE); 2674 cpi.ccb_h.func_code = XPT_PATH_INQ; 2675 xpt_action((union ccb *)&cpi); 2676 2677 /* SCSI specific sanity checking */ 2678 if ((cpi.hba_inquiry & PI_TAG_ABLE) == 0 2679 || (INQ_DATA_TQ_ENABLED(inq_data)) == 0 2680 || (device->queue_flags & SCP_QUEUE_DQUE) != 0 2681 || (device->mintags == 0)) { 2682 /* 2683 * Can't tag on hardware that doesn't support tags, 2684 * doesn't have it enabled, or has broken tag support. 2685 */ 2686 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2687 } 2688 2689 if (async_update == FALSE) { 2690 /* 2691 * Perform sanity checking against what the 2692 * controller and device can do. 2693 */ 2694 xpt_setup_ccb(&cur_cts.ccb_h, cts->ccb_h.path, CAM_PRIORITY_NONE); 2695 cur_cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2696 cur_cts.type = cts->type; 2697 xpt_action((union ccb *)&cur_cts); 2698 if ((cur_cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2699 return; 2700 } 2701 cur_scsi = &cur_cts.proto_specific.scsi; 2702 if ((scsi->valid & CTS_SCSI_VALID_TQ) == 0) { 2703 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2704 scsi->flags |= cur_scsi->flags & CTS_SCSI_FLAGS_TAG_ENB; 2705 } 2706 if ((cur_scsi->valid & CTS_SCSI_VALID_TQ) == 0) 2707 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2708 } 2709 2710 /* SPI specific sanity checking */ 2711 if (cts->transport == XPORT_SPI && async_update == FALSE) { 2712 u_int spi3caps; 2713 struct ccb_trans_settings_spi *spi; 2714 struct ccb_trans_settings_spi *cur_spi; 2715 2716 spi = &cts->xport_specific.spi; 2717 2718 cur_spi = &cur_cts.xport_specific.spi; 2719 2720 /* Fill in any gaps in what the user gave us */ 2721 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2722 spi->sync_period = cur_spi->sync_period; 2723 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) 2724 spi->sync_period = 0; 2725 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2726 spi->sync_offset = cur_spi->sync_offset; 2727 if ((cur_spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) 2728 spi->sync_offset = 0; 2729 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2730 spi->ppr_options = cur_spi->ppr_options; 2731 if ((cur_spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) 2732 spi->ppr_options = 0; 2733 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2734 spi->bus_width = cur_spi->bus_width; 2735 if ((cur_spi->valid & CTS_SPI_VALID_BUS_WIDTH) == 0) 2736 spi->bus_width = 0; 2737 if ((spi->valid & CTS_SPI_VALID_DISC) == 0) { 2738 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2739 spi->flags |= cur_spi->flags & CTS_SPI_FLAGS_DISC_ENB; 2740 } 2741 if ((cur_spi->valid & CTS_SPI_VALID_DISC) == 0) 2742 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 2743 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2744 && (inq_data->flags & SID_Sync) == 0 2745 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2746 || ((cpi.hba_inquiry & PI_SDTR_ABLE) == 0)) { 2747 /* Force async */ 2748 spi->sync_period = 0; 2749 spi->sync_offset = 0; 2750 } 2751 2752 switch (spi->bus_width) { 2753 case MSG_EXT_WDTR_BUS_32_BIT: 2754 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2755 || (inq_data->flags & SID_WBus32) != 0 2756 || cts->type == CTS_TYPE_USER_SETTINGS) 2757 && (cpi.hba_inquiry & PI_WIDE_32) != 0) 2758 break; 2759 /* Fall Through to 16-bit */ 2760 case MSG_EXT_WDTR_BUS_16_BIT: 2761 if (((device->flags & CAM_DEV_INQUIRY_DATA_VALID) == 0 2762 || (inq_data->flags & SID_WBus16) != 0 2763 || cts->type == CTS_TYPE_USER_SETTINGS) 2764 && (cpi.hba_inquiry & PI_WIDE_16) != 0) { 2765 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2766 break; 2767 } 2768 /* Fall Through to 8-bit */ 2769 default: /* New bus width?? */ 2770 case MSG_EXT_WDTR_BUS_8_BIT: 2771 /* All targets can do this */ 2772 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2773 break; 2774 } 2775 2776 spi3caps = cpi.xport_specific.spi.ppr_options; 2777 if ((device->flags & CAM_DEV_INQUIRY_DATA_VALID) != 0 2778 && cts->type == CTS_TYPE_CURRENT_SETTINGS) 2779 spi3caps &= inq_data->spi3data; 2780 2781 if ((spi3caps & SID_SPI_CLOCK_DT) == 0) 2782 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 2783 2784 if ((spi3caps & SID_SPI_IUS) == 0) 2785 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 2786 2787 if ((spi3caps & SID_SPI_QAS) == 0) 2788 spi->ppr_options &= ~MSG_EXT_PPR_QAS_REQ; 2789 2790 /* No SPI Transfer settings are allowed unless we are wide */ 2791 if (spi->bus_width == 0) 2792 spi->ppr_options = 0; 2793 2794 if ((spi->valid & CTS_SPI_VALID_DISC) 2795 && ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) == 0)) { 2796 /* 2797 * Can't tag queue without disconnection. 2798 */ 2799 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 2800 scsi->valid |= CTS_SCSI_VALID_TQ; 2801 } 2802 2803 /* 2804 * If we are currently performing tagged transactions to 2805 * this device and want to change its negotiation parameters, 2806 * go non-tagged for a bit to give the controller a chance to 2807 * negotiate unhampered by tag messages. 2808 */ 2809 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2810 && (device->inq_flags & SID_CmdQue) != 0 2811 && (scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2812 && (spi->flags & (CTS_SPI_VALID_SYNC_RATE| 2813 CTS_SPI_VALID_SYNC_OFFSET| 2814 CTS_SPI_VALID_BUS_WIDTH)) != 0) 2815 scsi_toggle_tags(cts->ccb_h.path); 2816 } 2817 2818 if (cts->type == CTS_TYPE_CURRENT_SETTINGS 2819 && (scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 2820 int device_tagenb; 2821 2822 /* 2823 * If we are transitioning from tags to no-tags or 2824 * vice-versa, we need to carefully freeze and restart 2825 * the queue so that we don't overlap tagged and non-tagged 2826 * commands. We also temporarily stop tags if there is 2827 * a change in transfer negotiation settings to allow 2828 * "tag-less" negotiation. 2829 */ 2830 if ((device->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2831 || (device->inq_flags & SID_CmdQue) != 0) 2832 device_tagenb = TRUE; 2833 else 2834 device_tagenb = FALSE; 2835 2836 if (((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0 2837 && device_tagenb == FALSE) 2838 || ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) == 0 2839 && device_tagenb == TRUE)) { 2840 2841 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) { 2842 /* 2843 * Delay change to use tags until after a 2844 * few commands have gone to this device so 2845 * the controller has time to perform transfer 2846 * negotiations without tagged messages getting 2847 * in the way. 2848 */ 2849 device->tag_delay_count = CAM_TAG_DELAY_COUNT; 2850 device->flags |= CAM_DEV_TAG_AFTER_COUNT; 2851 } else { 2852 xpt_stop_tags(cts->ccb_h.path); 2853 } 2854 } 2855 } 2856 if (async_update == FALSE) 2857 (*(sim->sim_action))(sim, (union ccb *)cts); 2858 } 2859 2860 static void 2861 scsi_toggle_tags(struct cam_path *path) 2862 { 2863 struct cam_ed *dev; 2864 2865 /* 2866 * Give controllers a chance to renegotiate 2867 * before starting tag operations. We 2868 * "toggle" tagged queuing off then on 2869 * which causes the tag enable command delay 2870 * counter to come into effect. 2871 */ 2872 dev = path->device; 2873 if ((dev->flags & CAM_DEV_TAG_AFTER_COUNT) != 0 2874 || ((dev->inq_flags & SID_CmdQue) != 0 2875 && (dev->inq_flags & (SID_Sync|SID_WBus16|SID_WBus32)) != 0)) { 2876 struct ccb_trans_settings cts; 2877 2878 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NONE); 2879 cts.protocol = PROTO_SCSI; 2880 cts.protocol_version = PROTO_VERSION_UNSPECIFIED; 2881 cts.transport = XPORT_UNSPECIFIED; 2882 cts.transport_version = XPORT_VERSION_UNSPECIFIED; 2883 cts.proto_specific.scsi.flags = 0; 2884 cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ; 2885 scsi_set_transfer_settings(&cts, path->device, 2886 /*async_update*/TRUE); 2887 cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB; 2888 scsi_set_transfer_settings(&cts, path->device, 2889 /*async_update*/TRUE); 2890 } 2891 } 2892 2893 /* 2894 * Handle any per-device event notifications that require action by the XPT. 2895 */ 2896 static void 2897 scsi_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target, 2898 struct cam_ed *device, void *async_arg) 2899 { 2900 cam_status status; 2901 struct cam_path newpath; 2902 2903 /* 2904 * We only need to handle events for real devices. 2905 */ 2906 if (target->target_id == CAM_TARGET_WILDCARD 2907 || device->lun_id == CAM_LUN_WILDCARD) 2908 return; 2909 2910 /* 2911 * We need our own path with wildcards expanded to 2912 * handle certain types of events. 2913 */ 2914 if ((async_code == AC_SENT_BDR) 2915 || (async_code == AC_BUS_RESET) 2916 || (async_code == AC_INQ_CHANGED)) 2917 status = xpt_compile_path(&newpath, NULL, 2918 bus->path_id, 2919 target->target_id, 2920 device->lun_id); 2921 else 2922 status = CAM_REQ_CMP_ERR; 2923 2924 if (status == CAM_REQ_CMP) { 2925 2926 /* 2927 * Allow transfer negotiation to occur in a 2928 * tag free environment and after settle delay. 2929 */ 2930 if (async_code == AC_SENT_BDR 2931 || async_code == AC_BUS_RESET) { 2932 cam_freeze_devq(&newpath); 2933 cam_release_devq(&newpath, 2934 RELSIM_RELEASE_AFTER_TIMEOUT, 2935 /*reduction*/0, 2936 /*timeout*/scsi_delay, 2937 /*getcount_only*/0); 2938 scsi_toggle_tags(&newpath); 2939 } 2940 2941 if (async_code == AC_INQ_CHANGED) { 2942 /* 2943 * We've sent a start unit command, or 2944 * something similar to a device that 2945 * may have caused its inquiry data to 2946 * change. So we re-scan the device to 2947 * refresh the inquiry data for it. 2948 */ 2949 scsi_scan_lun(newpath.periph, &newpath, 2950 CAM_EXPECT_INQ_CHANGE, NULL); 2951 } 2952 xpt_release_path(&newpath); 2953 } else if (async_code == AC_LOST_DEVICE && 2954 (device->flags & CAM_DEV_UNCONFIGURED) == 0) { 2955 device->flags |= CAM_DEV_UNCONFIGURED; 2956 xpt_release_device(device); 2957 } else if (async_code == AC_TRANSFER_NEG) { 2958 struct ccb_trans_settings *settings; 2959 2960 settings = (struct ccb_trans_settings *)async_arg; 2961 scsi_set_transfer_settings(settings, device, 2962 /*async_update*/TRUE); 2963 } 2964 } 2965 2966 static void 2967 scsi_announce_periph(struct cam_periph *periph) 2968 { 2969 struct ccb_pathinq cpi; 2970 struct ccb_trans_settings cts; 2971 struct cam_path *path = periph->path; 2972 u_int speed; 2973 u_int freq; 2974 u_int mb; 2975 2976 mtx_assert(periph->sim->mtx, MA_OWNED); 2977 2978 xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL); 2979 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 2980 cts.type = CTS_TYPE_CURRENT_SETTINGS; 2981 xpt_action((union ccb*)&cts); 2982 if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 2983 return; 2984 /* Ask the SIM for its base transfer speed */ 2985 xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL); 2986 cpi.ccb_h.func_code = XPT_PATH_INQ; 2987 xpt_action((union ccb *)&cpi); 2988 /* Report connection speed */ 2989 speed = cpi.base_transfer_speed; 2990 freq = 0; 2991 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 2992 struct ccb_trans_settings_spi *spi = 2993 &cts.xport_specific.spi; 2994 2995 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0 2996 && spi->sync_offset != 0) { 2997 freq = scsi_calc_syncsrate(spi->sync_period); 2998 speed = freq; 2999 } 3000 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) 3001 speed *= (0x01 << spi->bus_width); 3002 } 3003 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3004 struct ccb_trans_settings_fc *fc = 3005 &cts.xport_specific.fc; 3006 3007 if (fc->valid & CTS_FC_VALID_SPEED) 3008 speed = fc->bitrate; 3009 } 3010 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SAS) { 3011 struct ccb_trans_settings_sas *sas = 3012 &cts.xport_specific.sas; 3013 3014 if (sas->valid & CTS_SAS_VALID_SPEED) 3015 speed = sas->bitrate; 3016 } 3017 mb = speed / 1000; 3018 if (mb > 0) 3019 printf("%s%d: %d.%03dMB/s transfers", 3020 periph->periph_name, periph->unit_number, 3021 mb, speed % 1000); 3022 else 3023 printf("%s%d: %dKB/s transfers", periph->periph_name, 3024 periph->unit_number, speed); 3025 /* Report additional information about SPI connections */ 3026 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_SPI) { 3027 struct ccb_trans_settings_spi *spi; 3028 3029 spi = &cts.xport_specific.spi; 3030 if (freq != 0) { 3031 printf(" (%d.%03dMHz%s, offset %d", freq / 1000, 3032 freq % 1000, 3033 (spi->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 3034 ? " DT" : "", 3035 spi->sync_offset); 3036 } 3037 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0 3038 && spi->bus_width > 0) { 3039 if (freq != 0) { 3040 printf(", "); 3041 } else { 3042 printf(" ("); 3043 } 3044 printf("%dbit)", 8 * (0x01 << spi->bus_width)); 3045 } else if (freq != 0) { 3046 printf(")"); 3047 } 3048 } 3049 if (cts.ccb_h.status == CAM_REQ_CMP && cts.transport == XPORT_FC) { 3050 struct ccb_trans_settings_fc *fc; 3051 3052 fc = &cts.xport_specific.fc; 3053 if (fc->valid & CTS_FC_VALID_WWNN) 3054 printf(" WWNN 0x%llx", (long long) fc->wwnn); 3055 if (fc->valid & CTS_FC_VALID_WWPN) 3056 printf(" WWPN 0x%llx", (long long) fc->wwpn); 3057 if (fc->valid & CTS_FC_VALID_PORT) 3058 printf(" PortID 0x%x", fc->port); 3059 } 3060 printf("\n"); 3061 } 3062 3063