scsiconf.c revision 1.51
1 /* $NetBSD: scsiconf.c,v 1.51 1996/03/05 00:15:12 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Charles Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Originally written by Julian Elischer (julian (at) tfs.com) 34 * for TRW Financial Systems for use under the MACH(2.5) operating system. 35 * 36 * TRW Financial Systems, in accordance with their agreement with Carnegie 37 * Mellon University, makes this software available to CMU to distribute 38 * or use in any manner that they see fit as long as this message is kept with 39 * the software. For this reason TFS also grants any other persons or 40 * organisations permission to use or modify this software. 41 * 42 * TFS supplies this software to be publicly redistributed 43 * on the understanding that TFS is not responsible for the correct 44 * functioning of this software in any circumstances. 45 * 46 * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992 47 */ 48 49 #include <sys/types.h> 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/malloc.h> 53 #include <sys/device.h> 54 #include <sys/cpu.h> 55 56 #include <scsi/scsi_all.h> 57 #include <scsi/scsiconf.h> 58 59 #if 0 60 #if NCALS > 0 61 { T_PROCESSOR, T_FIXED, 1, 62 0, 0, 0 }, 63 #endif /* NCALS */ 64 #if NBLL > 0 65 { T_PROCESSOR, T_FIXED, 1, 66 "AEG ", "READER ", "V1.0" }, 67 #endif /* NBLL */ 68 #if NKIL > 0 69 { T_SCANNER, T_FIXED, 0, 70 "KODAK ", "IL Scanner 900 ", 0 }, 71 #endif /* NKIL */ 72 #endif 73 74 /* 75 * Declarations 76 */ 77 void scsi_probedev __P((struct scsibus_softc *, int, int)); 78 int scsi_probe_bus __P((int bus, int target, int lun)); 79 80 struct scsi_device probe_switch = { 81 NULL, 82 NULL, 83 NULL, 84 NULL, 85 }; 86 87 int scsibusmatch __P((struct device *, void *, void *)); 88 void scsibusattach __P((struct device *, struct device *, void *)); 89 int scsibussubmatch __P((struct device *, void *, void *)); 90 91 struct cfdriver scsibuscd = { 92 NULL, "scsibus", scsibusmatch, scsibusattach, DV_DULL, 93 sizeof(struct scsibus_softc) 94 }; 95 96 int scsibusprint __P((void *, char *)); 97 98 int 99 scsibusmatch(parent, match, aux) 100 struct device *parent; 101 void *match, *aux; 102 { 103 104 return 1; 105 } 106 107 /* 108 * The routine called by the adapter boards to get all their 109 * devices configured in. 110 */ 111 void 112 scsibusattach(parent, self, aux) 113 struct device *parent, *self; 114 void *aux; 115 { 116 struct scsibus_softc *sb = (struct scsibus_softc *)self; 117 struct scsi_link *sc_link_proto = aux; 118 119 sc_link_proto->scsibus = sb->sc_dev.dv_unit; 120 sb->adapter_link = sc_link_proto; 121 printf("\n"); 122 123 #if defined(SCSI_DELAY) && SCSI_DELAY > 2 124 printf("%s: waiting for scsi devices to settle\n", 125 sb->sc_dev.dv_xname); 126 #else /* SCSI_DELAY > 2 */ 127 #undef SCSI_DELAY 128 #define SCSI_DELAY 2 129 #endif /* SCSI_DELAY */ 130 delay(1000000 * SCSI_DELAY); 131 132 scsi_probe_bus(sb->sc_dev.dv_unit, -1, -1); 133 } 134 135 int 136 scsibussubmatch(parent, match, aux) 137 struct device *parent; 138 void *match, *aux; 139 { 140 struct cfdata *cf = match; 141 struct scsibus_attach_args *sa = aux; 142 struct scsi_link *sc_link = sa->sa_sc_link; 143 144 if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != sc_link->target) 145 return 0; 146 if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != sc_link->lun) 147 return 0; 148 return ((*cf->cf_driver->cd_match)(parent, match, aux)); 149 } 150 151 /* 152 * Probe the requested scsi bus. It must be already set up. 153 * -1 requests all set up scsi busses. 154 * target and lun optionally narrow the search if not -1 155 */ 156 int 157 scsi_probe_busses(bus, target, lun) 158 int bus, target, lun; 159 { 160 161 if (bus == -1) { 162 for (bus = 0; bus < scsibuscd.cd_ndevs; bus++) 163 if (scsibuscd.cd_devs[bus]) 164 scsi_probe_bus(bus, target, lun); 165 return 0; 166 } else { 167 return scsi_probe_bus(bus, target, lun); 168 } 169 } 170 171 /* 172 * Probe the requested scsi bus. It must be already set up. 173 * target and lun optionally narrow the search if not -1 174 */ 175 int 176 scsi_probe_bus(bus, target, lun) 177 int bus, target, lun; 178 { 179 struct scsibus_softc *scsi; 180 int maxtarget, mintarget, maxlun, minlun; 181 u_int8_t scsi_addr; 182 183 if (bus < 0 || bus >= scsibuscd.cd_ndevs) 184 return ENXIO; 185 scsi = scsibuscd.cd_devs[bus]; 186 if (!scsi) 187 return ENXIO; 188 189 scsi_addr = scsi->adapter_link->adapter_target; 190 191 if (target == -1) { 192 maxtarget = 7; 193 mintarget = 0; 194 } else { 195 if (target < 0 || target > 7) 196 return EINVAL; 197 maxtarget = mintarget = target; 198 } 199 200 if (lun == -1) { 201 maxlun = 7; 202 minlun = 0; 203 } else { 204 if (lun < 0 || lun > 7) 205 return EINVAL; 206 maxlun = minlun = lun; 207 } 208 209 for (target = mintarget; target <= maxtarget; target++) { 210 if (target == scsi_addr) 211 continue; 212 for (lun = minlun; lun <= maxlun; lun++) { 213 /* 214 * See if there's a device present, and configure it. 215 */ 216 scsi_probedev(scsi, target, lun); 217 if ((scsi->moreluns & (1 << target)) == 0) 218 break; 219 /* otherwise something says we should look further */ 220 } 221 } 222 return 0; 223 } 224 225 void 226 scsi_strvis(dst, src, len) 227 u_char *dst, *src; 228 int len; 229 { 230 231 /* Trim leading and trailing blanks and NULs. */ 232 while (len > 0 && (src[0] == ' ' || src[0] == '\0')) 233 ++src, --len; 234 while (len > 0 && (src[len-1] == ' ' || src[len-1] == '\0')) 235 --len; 236 237 while (len > 0) { 238 if (*src < 0x20 || *src >= 0x80) { 239 /* non-printable characters */ 240 *dst++ = '\\'; 241 *dst++ = ((*src & 0300) >> 6) + '0'; 242 *dst++ = ((*src & 0070) >> 3) + '0'; 243 *dst++ = ((*src & 0007) >> 0) + '0'; 244 } else if (*src == '\\') { 245 /* quote characters */ 246 *dst++ = '\\'; 247 *dst++ = '\\'; 248 } else { 249 /* normal characters */ 250 *dst++ = *src; 251 } 252 ++src, --len; 253 } 254 255 *dst++ = 0; 256 } 257 258 struct scsi_quirk_inquiry_pattern { 259 struct scsi_inquiry_pattern pattern; 260 u_int8_t quirks; 261 }; 262 263 struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = { 264 {{T_CDROM, T_REMOV, 265 "CHINON ", "CD-ROM CDS-431 ", ""}, SDEV_NOLUNS}, 266 {{T_CDROM, T_REMOV, 267 "Chinon ", "CD-ROM CDS-525 ", ""}, SDEV_NOLUNS}, 268 {{T_CDROM, T_REMOV, 269 "CHINON ", "CD-ROM CDS-535 ", ""}, SDEV_NOLUNS}, 270 {{T_CDROM, T_REMOV, 271 "DENON ", "DRD-25X ", "V"}, SDEV_NOLUNS}, 272 {{T_CDROM, T_REMOV, 273 "IMS ", "CDD521/10 ", "2.06"}, SDEV_NOLUNS}, 274 {{T_CDROM, T_REMOV, 275 "MEDIAVIS", "CDR-H93MV ", "1.31"}, SDEV_NOLUNS}, 276 {{T_CDROM, T_REMOV, 277 "NEC ", "CD-ROM DRIVE:55 ", ""}, SDEV_NOLUNS}, 278 {{T_CDROM, T_REMOV, 279 "NEC ", "CD-ROM DRIVE:83 ", ""}, SDEV_NOLUNS}, 280 {{T_CDROM, T_REMOV, 281 "NEC ", "CD-ROM DRIVE:84 ", ""}, SDEV_NOLUNS}, 282 {{T_CDROM, T_REMOV, 283 "NEC ", "CD-ROM DRIVE:841", ""}, SDEV_NOLUNS}, 284 {{T_CDROM, T_REMOV, 285 "SONY ", "CD-ROM CDU-541 ", ""}, SDEV_NOLUNS}, 286 {{T_CDROM, T_REMOV, 287 "SONY ", "CD-ROM CDU-55S ", ""}, SDEV_NOLUNS}, 288 {{T_CDROM, T_REMOV, 289 "SONY ", "CD-ROM CDU-8003A", ""}, SDEV_NOLUNS}, 290 {{T_CDROM, T_REMOV, 291 "SONY ", "CD-ROM CDU-8012 ", ""}, SDEV_NOLUNS}, 292 {{T_CDROM, T_REMOV, 293 "TEAC ", "CD-ROM ", "1.06"}, SDEV_NOLUNS}, 294 {{T_CDROM, T_REMOV, 295 "TEXEL ", "CD-ROM ", "1.06"}, SDEV_NOLUNS}, 296 {{T_CDROM, T_REMOV, 297 "TEXEL ", "CD-ROM DM-XX24 K", "1.10"}, SDEV_NOLUNS}, 298 299 {{T_DIRECT, T_FIXED, 300 "DEC ", "RZ55 (C) DEC", ""}, SDEV_AUTOSAVE}, 301 {{T_DIRECT, T_FIXED, 302 "EMULEX ", "MD21/S2 ESDI", "A00"}, SDEV_FORCELUNS}, 303 {{T_DIRECT, T_FIXED, 304 "MAXTOR ", "XT-3280 ", ""}, SDEV_NOLUNS}, 305 {{T_DIRECT, T_FIXED, 306 "MAXTOR ", "XT-4380S ", ""}, SDEV_NOLUNS}, 307 {{T_DIRECT, T_FIXED, 308 "MAXTOR ", "MXT-1240S ", ""}, SDEV_NOLUNS}, 309 {{T_DIRECT, T_FIXED, 310 "MAXTOR ", "XT-4170S ", ""}, SDEV_NOLUNS}, 311 {{T_DIRECT, T_FIXED, 312 "MAXTOR ", "XT-8760S ", ""}, SDEV_NOLUNS}, 313 {{T_DIRECT, T_FIXED, 314 "MAXTOR ", "LXT-213S ", ""}, SDEV_NOLUNS}, 315 {{T_DIRECT, T_FIXED, 316 "MAXTOR ", "LXT-213S SUN0207", ""}, SDEV_NOLUNS}, 317 {{T_DIRECT, T_FIXED, 318 "MST ", "SnapLink ", ""}, SDEV_NOLUNS}, 319 {{T_DIRECT, T_FIXED, 320 "QUANTUM ", "LPS525S ", ""}, SDEV_NOLUNS}, 321 {{T_DIRECT, T_FIXED, 322 "QUANTUM ", "P105S 910-10-94x", ""}, SDEV_NOLUNS}, 323 {{T_DIRECT, T_FIXED, 324 "QUANTUM ", "PD1225S ", ""}, SDEV_NOLUNS}, 325 {{T_DIRECT, T_FIXED, 326 "QUANTUM ", "PD210S SUN0207", ""}, SDEV_NOLUNS}, 327 {{T_DIRECT, T_FIXED, 328 "RODIME ", "RO3000S ", ""}, SDEV_NOLUNS}, 329 {{T_DIRECT, T_FIXED, 330 "SEAGATE ", "ST157N ", ""}, SDEV_NOLUNS}, 331 {{T_DIRECT, T_FIXED, 332 "SEAGATE ", "ST296 ", ""}, SDEV_NOLUNS}, 333 {{T_DIRECT, T_FIXED, 334 "SEAGATE ", "ST296N ", ""}, SDEV_NOLUNS}, 335 {{T_DIRECT, T_FIXED, 336 "TOSHIBA ", "MK538FB ", "6027"}, SDEV_NOLUNS}, 337 338 /* XXX: QIC-36 tape behind Emulex adapter. Very broken. */ 339 {{T_SEQUENTIAL, T_REMOV, 340 " ", " ", " "}, SDEV_NOLUNS}, 341 {{T_SEQUENTIAL, T_REMOV, 342 "CALIPER ", "CP150 ", ""}, SDEV_NOLUNS}, 343 {{T_SEQUENTIAL, T_REMOV, 344 "EXABYTE ", "EXB-8200 ", ""}, SDEV_NOLUNS}, 345 {{T_SEQUENTIAL, T_REMOV, 346 "SONY ", "SDT-2000 ", "2.09"}, SDEV_NOLUNS}, 347 {{T_SEQUENTIAL, T_REMOV, 348 "SONY ", "SDT-5000 ", "3."}, SDEV_NOSYNCWIDE}, 349 {{T_SEQUENTIAL, T_REMOV, 350 "SONY ", "SDT-5200 ", "3."}, SDEV_NOLUNS}, 351 {{T_SEQUENTIAL, T_REMOV, 352 "TANDBERG", " TDC 3600 ", ""}, SDEV_NOLUNS}, 353 /* Following entry reported as a Tandberg 3600; ref. PR1933 */ 354 {{T_SEQUENTIAL, T_REMOV, 355 "ARCHIVE ", "VIPER 150 21247", ""}, SDEV_NOLUNS}, 356 {{T_SEQUENTIAL, T_REMOV, 357 "WANGTEK ", "5099ES SCSI", ""}, SDEV_NOLUNS}, 358 {{T_SEQUENTIAL, T_REMOV, 359 "WANGTEK ", "5150ES SCSI", ""}, SDEV_NOLUNS}, 360 {{T_SEQUENTIAL, T_REMOV, 361 "WangDAT ", "Model 1300 ", "02.4"}, SDEV_NOSYNCWIDE}, 362 {{T_SEQUENTIAL, T_REMOV, 363 "WangDAT ", "Model 2600 ", "01.7"}, SDEV_NOSYNCWIDE}, 364 {{T_SEQUENTIAL, T_REMOV, 365 "WangDAT ", "Model 3200 ", "02.2"}, SDEV_NOSYNCWIDE}, 366 }; 367 368 /* 369 * Print out autoconfiguration information for a subdevice. 370 * 371 * This is a slight abuse of 'standard' autoconfiguration semantics, 372 * because 'print' functions don't normally print the colon and 373 * device information. However, in this case that's better than 374 * either printing redundant information before the attach message, 375 * or having the device driver call a special function to print out 376 * the standard device information. 377 */ 378 int 379 scsibusprint(aux, pnp) 380 void *aux; 381 char *pnp; 382 { 383 struct scsibus_attach_args *sa = aux; 384 struct scsi_inquiry_data *inqbuf; 385 u_int8_t type; 386 boolean removable; 387 char *dtype, *qtype; 388 char vendor[33], product[65], revision[17]; 389 int target, lun; 390 391 if (pnp != NULL) 392 printf("%s", pnp); 393 394 inqbuf = sa->sa_inqbuf; 395 396 target = sa->sa_sc_link->target; 397 lun = sa->sa_sc_link->lun; 398 399 type = inqbuf->device & SID_TYPE; 400 removable = inqbuf->dev_qual2 & SID_REMOVABLE ? 1 : 0; 401 402 /* 403 * Figure out basic device type and qualifier. 404 */ 405 dtype = 0; 406 switch (inqbuf->device & SID_QUAL) { 407 case SID_QUAL_LU_OK: 408 qtype = ""; 409 break; 410 411 case SID_QUAL_LU_OFFLINE: 412 qtype = " offline"; 413 break; 414 415 case SID_QUAL_RSVD: 416 case SID_QUAL_BAD_LU: 417 panic("scsibusprint: impossible qualifier"); 418 419 default: 420 qtype = ""; 421 dtype = "vendor-unique"; 422 break; 423 } 424 if (dtype == 0) { 425 switch (type) { 426 case T_DIRECT: 427 dtype = "direct"; 428 break; 429 case T_SEQUENTIAL: 430 dtype = "sequential"; 431 break; 432 case T_PRINTER: 433 dtype = "printer"; 434 break; 435 case T_PROCESSOR: 436 dtype = "processor"; 437 break; 438 case T_CDROM: 439 dtype = "cdrom"; 440 break; 441 case T_WORM: 442 dtype = "worm"; 443 break; 444 case T_SCANNER: 445 dtype = "scanner"; 446 break; 447 case T_OPTICAL: 448 dtype = "optical"; 449 break; 450 case T_CHANGER: 451 dtype = "changer"; 452 break; 453 case T_COMM: 454 dtype = "communication"; 455 break; 456 case T_NODEVICE: 457 panic("scsibusprint: impossible device type"); 458 default: 459 dtype = "unknown"; 460 break; 461 } 462 } 463 464 scsi_strvis(vendor, inqbuf->vendor, 8); 465 scsi_strvis(product, inqbuf->product, 16); 466 scsi_strvis(revision, inqbuf->revision, 4); 467 468 printf(" targ %d lun %d: <%s, %s, %s> SCSI%d %d/%s %s%s", 469 target, lun, vendor, product, revision, 470 inqbuf->version & SID_ANSII, type, dtype, 471 removable ? "removable" : "fixed", qtype); 472 473 return (UNCONF); 474 } 475 476 /* 477 * given a target and lu, ask the device what 478 * it is, and find the correct driver table 479 * entry. 480 */ 481 void 482 scsi_probedev(scsi, target, lun) 483 struct scsibus_softc *scsi; 484 int target, lun; 485 { 486 struct scsi_link *sc_link; 487 static struct scsi_inquiry_data inqbuf; 488 struct scsi_quirk_inquiry_pattern *finger; 489 int checkdtype, priority; 490 struct scsibus_attach_args sa; 491 struct cfdata *cf; 492 493 /* Skip this slot if it is already attached. */ 494 if (scsi->sc_link[target][lun]) 495 return; 496 497 sc_link = malloc(sizeof(*sc_link), M_DEVBUF, M_NOWAIT); 498 *sc_link = *scsi->adapter_link; 499 sc_link->target = target; 500 sc_link->lun = lun; 501 sc_link->device = &probe_switch; 502 503 /* 504 * Ask the device what it is 505 */ 506 #ifdef SCSIDEBUG 507 if (target == DEBUGTARGET && lun == DEBUGLUN) 508 sc_link->flags |= DEBUGLEVEL; 509 #endif /* SCSIDEBUG */ 510 511 (void) scsi_test_unit_ready(sc_link, 512 SCSI_AUTOCONF | SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE); 513 514 #ifdef SCSI_2_DEF 515 /* some devices need to be told to go to SCSI2 */ 516 /* However some just explode if you tell them this.. leave it out */ 517 scsi_change_def(sc_link, SCSI_AUTOCONF | SCSI_SILENT); 518 #endif /* SCSI_2_DEF */ 519 520 /* Now go ask the device all about itself. */ 521 bzero(&inqbuf, sizeof(inqbuf)); 522 if (scsi_inquire(sc_link, &inqbuf, SCSI_AUTOCONF) != 0) 523 goto bad; 524 525 { 526 int len = inqbuf.additional_length; 527 while (len < 3) 528 inqbuf.unused[len++] = '\0'; 529 while (len < 3 + 28) 530 inqbuf.unused[len++] = ' '; 531 } 532 533 finger = (struct scsi_quirk_inquiry_pattern *)scsi_inqmatch(&inqbuf, 534 (caddr_t)scsi_quirk_patterns, 535 sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]), 536 sizeof(scsi_quirk_patterns[0]), &priority); 537 if (priority != 0) 538 sc_link->quirks |= finger->quirks; 539 if ((inqbuf.version & SID_ANSII) == 0 && 540 (sc_link->quirks & SDEV_FORCELUNS) == 0) 541 sc_link->quirks |= SDEV_NOLUNS; 542 543 if ((sc_link->quirks & SDEV_NOLUNS) == 0) 544 scsi->moreluns |= (1 << target); 545 546 /* 547 * note what BASIC type of device it is 548 */ 549 if ((inqbuf.dev_qual2 & SID_REMOVABLE) != 0) 550 sc_link->flags |= SDEV_REMOVABLE; 551 552 /* 553 * Any device qualifier that has the top bit set (qualifier&4 != 0) 554 * is vendor specific and won't match in this switch. 555 * All we do here is throw out bad/negative responses. 556 */ 557 checkdtype = 0; 558 switch (inqbuf.device & SID_QUAL) { 559 case SID_QUAL_LU_OK: 560 case SID_QUAL_LU_OFFLINE: 561 checkdtype = 1; 562 break; 563 564 case SID_QUAL_RSVD: 565 case SID_QUAL_BAD_LU: 566 goto bad; 567 568 default: 569 break; 570 } 571 if (checkdtype) { 572 switch (inqbuf.device & SID_TYPE) { 573 case T_DIRECT: 574 case T_SEQUENTIAL: 575 case T_PRINTER: 576 case T_PROCESSOR: 577 case T_CDROM: 578 case T_WORM: 579 case T_SCANNER: 580 case T_OPTICAL: 581 case T_CHANGER: 582 case T_COMM: 583 default: 584 break; 585 case T_NODEVICE: 586 goto bad; 587 } 588 } 589 590 sa.sa_sc_link = sc_link; 591 sa.sa_inqbuf = &inqbuf; 592 593 if ((cf = config_search(scsibussubmatch, (struct device *)scsi, &sa)) != 0) { 594 scsi->sc_link[target][lun] = sc_link; 595 config_attach((struct device *)scsi, cf, &sa, scsibusprint); 596 } else { 597 scsibusprint(&sa, scsi->sc_dev.dv_xname); 598 printf(" not configured\n"); 599 goto bad; 600 } 601 602 return; 603 604 bad: 605 free(sc_link, M_DEVBUF); 606 return; 607 } 608 609 /* 610 * Return a priority based on how much of the inquiry data matches 611 * the patterns for the particular driver. 612 */ 613 caddr_t 614 scsi_inqmatch(inqbuf, base, nmatches, matchsize, bestpriority) 615 struct scsi_inquiry_data *inqbuf; 616 caddr_t base; 617 int nmatches, matchsize; 618 int *bestpriority; 619 { 620 u_int8_t type; 621 boolean removable; 622 caddr_t bestmatch; 623 624 /* Include the qualifier to catch vendor-unique types. */ 625 type = inqbuf->device; 626 removable = inqbuf->dev_qual2 & SID_REMOVABLE ? T_REMOV : T_FIXED; 627 628 for (*bestpriority = 0, bestmatch = 0; nmatches--; base += matchsize) { 629 struct scsi_inquiry_pattern *match = (void *)base; 630 int priority, len; 631 632 if (type != match->type) 633 continue; 634 if (removable != match->removable) 635 continue; 636 priority = 2; 637 len = strlen(match->vendor); 638 if (bcmp(inqbuf->vendor, match->vendor, len)) 639 continue; 640 priority += len; 641 len = strlen(match->product); 642 if (bcmp(inqbuf->product, match->product, len)) 643 continue; 644 priority += len; 645 len = strlen(match->revision); 646 if (bcmp(inqbuf->revision, match->revision, len)) 647 continue; 648 priority += len; 649 650 #if SCSIDEBUG 651 printf("scsi_inqmatch: %d/%d/%d <%s, %s, %s>\n", 652 priority, match->type, match->removable, 653 match->vendor, match->product, match->revision); 654 #endif 655 if (priority > *bestpriority) { 656 *bestpriority = priority; 657 bestmatch = base; 658 } 659 } 660 661 return (bestmatch); 662 } 663
Indexes created Thu Sep 25 16:09:42 GMT 2025