wd.c revision 1.374
1 /* $NetBSD: wd.c,v 1.374 2009/05/15 23:49:28 dyoung Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Manuel Bouyer. 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 Manuel Bouyer. 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 * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to The NetBSD Foundation 37 * by Charles M. Hannum and by Onno van der Linden. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 50 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 51 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 52 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 53 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 56 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 58 * POSSIBILITY OF SUCH DAMAGE. 59 */ 60 61 #include <sys/cdefs.h> 62 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.374 2009/05/15 23:49:28 dyoung Exp $"); 63 64 #include "opt_ata.h" 65 66 #include "rnd.h" 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/kernel.h> 71 #include <sys/conf.h> 72 #include <sys/file.h> 73 #include <sys/stat.h> 74 #include <sys/ioctl.h> 75 #include <sys/buf.h> 76 #include <sys/bufq.h> 77 #include <sys/uio.h> 78 #include <sys/malloc.h> 79 #include <sys/device.h> 80 #include <sys/disklabel.h> 81 #include <sys/disk.h> 82 #include <sys/syslog.h> 83 #include <sys/proc.h> 84 #include <sys/reboot.h> 85 #include <sys/vnode.h> 86 #if NRND > 0 87 #include <sys/rnd.h> 88 #endif 89 90 #include <sys/intr.h> 91 #include <sys/bus.h> 92 93 #include <dev/ata/atareg.h> 94 #include <dev/ata/atavar.h> 95 #include <dev/ata/wdvar.h> 96 #include <dev/ic/wdcreg.h> 97 #include <sys/ataio.h> 98 #include "locators.h" 99 100 #include <prop/proplib.h> 101 102 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 103 104 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 105 #define WDIORETRIES 5 /* number of retries before giving up */ 106 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 107 108 #define WDUNIT(dev) DISKUNIT(dev) 109 #define WDPART(dev) DISKPART(dev) 110 #define WDMINOR(unit, part) DISKMINOR(unit, part) 111 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 112 113 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 114 115 #define DEBUG_INTR 0x01 116 #define DEBUG_XFERS 0x02 117 #define DEBUG_STATUS 0x04 118 #define DEBUG_FUNCS 0x08 119 #define DEBUG_PROBE 0x10 120 #ifdef ATADEBUG 121 int wdcdebug_wd_mask = 0x0; 122 #define ATADEBUG_PRINT(args, level) \ 123 if (wdcdebug_wd_mask & (level)) \ 124 printf args 125 #else 126 #define ATADEBUG_PRINT(args, level) 127 #endif 128 129 int wdprobe(device_t, cfdata_t, void *); 130 void wdattach(device_t, device_t, void *); 131 int wddetach(device_t, int); 132 int wdactivate(device_t, enum devact); 133 int wdprint(void *, char *); 134 void wdperror(const struct wd_softc *); 135 136 static void wdlastclose(struct wd_softc *); 137 static bool wd_suspend(device_t PMF_FN_PROTO); 138 static int wd_standby(struct wd_softc *, int); 139 140 CFATTACH_DECL3_NEW(wd, sizeof(struct wd_softc), 141 wdprobe, wdattach, wddetach, wdactivate, NULL, NULL, DVF_DETACH_SHUTDOWN); 142 143 extern struct cfdriver wd_cd; 144 145 dev_type_open(wdopen); 146 dev_type_close(wdclose); 147 dev_type_read(wdread); 148 dev_type_write(wdwrite); 149 dev_type_ioctl(wdioctl); 150 dev_type_strategy(wdstrategy); 151 dev_type_dump(wddump); 152 dev_type_size(wdsize); 153 154 const struct bdevsw wd_bdevsw = { 155 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 156 }; 157 158 const struct cdevsw wd_cdevsw = { 159 wdopen, wdclose, wdread, wdwrite, wdioctl, 160 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 161 }; 162 163 /* 164 * Glue necessary to hook WDCIOCCOMMAND into physio 165 */ 166 167 struct wd_ioctl { 168 LIST_ENTRY(wd_ioctl) wi_list; 169 struct buf wi_bp; 170 struct uio wi_uio; 171 struct iovec wi_iov; 172 atareq_t wi_atareq; 173 struct wd_softc *wi_softc; 174 }; 175 176 LIST_HEAD(, wd_ioctl) wi_head; 177 178 struct wd_ioctl *wi_find(struct buf *); 179 void wi_free(struct wd_ioctl *); 180 struct wd_ioctl *wi_get(void); 181 void wdioctlstrategy(struct buf *); 182 183 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 184 void wdgetdisklabel(struct wd_softc *); 185 void wdstart(void *); 186 void __wdstart(struct wd_softc*, struct buf *); 187 void wdrestart(void *); 188 void wddone(void *); 189 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 190 int wd_flushcache(struct wd_softc *, int); 191 bool wd_shutdown(device_t, int); 192 193 int wd_getcache(struct wd_softc *, int *); 194 int wd_setcache(struct wd_softc *, int); 195 196 struct dkdriver wddkdriver = { wdstrategy, minphys }; 197 198 #ifdef HAS_BAD144_HANDLING 199 static void bad144intern(struct wd_softc *); 200 #endif 201 202 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 203 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 204 205 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 206 207 /* 208 * Quirk table for IDE drives. Put more-specific matches first, since 209 * a simple globbing routine is used for matching. 210 */ 211 static const struct wd_quirk { 212 const char *wdq_match; /* inquiry pattern to match */ 213 int wdq_quirks; /* drive quirks */ 214 } wd_quirk_table[] = { 215 /* 216 * Some Seagate S-ATA drives have a PHY which can get confused 217 * with the way data is packetized by some S-ATA controllers. 218 * 219 * The work-around is to split in two any write transfer whose 220 * sector count % 15 == 1 (assuming 512 byte sectors). 221 * 222 * XXX This is an incomplete list. There are at least a couple 223 * XXX more model numbers. If you have trouble with such transfers 224 * XXX (8K is the most common) on Seagate S-ATA drives, please 225 * XXX notify thorpej (at) NetBSD.org. 226 */ 227 { "ST3120023AS", 228 WD_QUIRK_SPLIT_MOD15_WRITE }, 229 { "ST380023AS", 230 WD_QUIRK_SPLIT_MOD15_WRITE }, 231 232 /* 233 * These seagate drives seems to have issue addressing sector 0xfffffff 234 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 235 * LBA48 236 * Note that we can't just change the code to always use LBA48 for 237 * sector 0xfffffff, because this would break valid and working 238 * setups using LBA48 drives on non-LBA48-capable controllers 239 * (and it's hard to get a list of such controllers) 240 */ 241 { "ST3160021A*", 242 WD_QUIRK_FORCE_LBA48 }, 243 { "ST3160811A*", 244 WD_QUIRK_FORCE_LBA48 }, 245 { "ST3160812A*", 246 WD_QUIRK_FORCE_LBA48 }, 247 { "ST3160023A*", 248 WD_QUIRK_FORCE_LBA48 }, 249 { "ST3160827A*", 250 WD_QUIRK_FORCE_LBA48 }, 251 /* Attempt to catch all seagate drives larger than 200GB */ 252 { "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 253 WD_QUIRK_FORCE_LBA48 }, 254 { "ST3[1-9][0-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 255 WD_QUIRK_FORCE_LBA48 }, 256 { NULL, 257 0 } 258 }; 259 260 static const struct wd_quirk * 261 wd_lookup_quirks(const char *name) 262 { 263 const struct wd_quirk *wdq; 264 const char *estr; 265 266 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 267 /* 268 * We only want exact matches (which include matches 269 * against globbing characters). 270 */ 271 if (pmatch(name, wdq->wdq_match, &estr) == 2) 272 return (wdq); 273 } 274 return (NULL); 275 } 276 277 int 278 wdprobe(device_t parent, cfdata_t match, void *aux) 279 { 280 struct ata_device *adev = aux; 281 282 if (adev == NULL) 283 return 0; 284 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 285 return 0; 286 287 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 288 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 289 return 0; 290 return 1; 291 } 292 293 void 294 wdattach(device_t parent, device_t self, void *aux) 295 { 296 struct wd_softc *wd = device_private(self); 297 struct ata_device *adev= aux; 298 int i, blank; 299 char tbuf[41], pbuf[9], c, *p, *q; 300 const struct wd_quirk *wdq; 301 302 wd->sc_dev = self; 303 304 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 305 callout_init(&wd->sc_restart_ch, 0); 306 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 307 #ifdef WD_SOFTBADSECT 308 SLIST_INIT(&wd->sc_bslist); 309 #endif 310 wd->atabus = adev->adev_bustype; 311 wd->openings = adev->adev_openings; 312 wd->drvp = adev->adev_drv_data; 313 314 wd->drvp->drv_done = wddone; 315 wd->drvp->drv_softc = wd->sc_dev; 316 317 aprint_naive("\n"); 318 319 /* read our drive info */ 320 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 321 aprint_error("\n%s: IDENTIFY failed\n", device_xname(self)); 322 return; 323 } 324 325 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 326 i < sizeof(wd->sc_params.atap_model); i++) { 327 c = *p++; 328 if (c == '\0') 329 break; 330 if (c != ' ') { 331 if (blank) { 332 *q++ = ' '; 333 blank = 0; 334 } 335 *q++ = c; 336 } else 337 blank = 1; 338 } 339 *q++ = '\0'; 340 341 aprint_normal(": <%s>\n", tbuf); 342 343 wdq = wd_lookup_quirks(tbuf); 344 if (wdq != NULL) 345 wd->sc_quirks = wdq->wdq_quirks; 346 347 if (wd->sc_quirks != 0) { 348 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 349 snprintb(sbuf, sizeof(sbuf), WD_QUIRK_FMT, wd->sc_quirks); 350 aprint_normal_dev(self, "quirks %s\n", sbuf); 351 } 352 353 if ((wd->sc_params.atap_multi & 0xff) > 1) { 354 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 355 } else { 356 wd->sc_multi = 1; 357 } 358 359 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 360 wd->sc_multi); 361 362 /* 48-bit LBA addressing */ 363 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 364 wd->sc_flags |= WDF_LBA48; 365 366 /* Prior to ATA-4, LBA was optional. */ 367 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 368 wd->sc_flags |= WDF_LBA; 369 #if 0 370 /* ATA-4 requires LBA. */ 371 if (wd->sc_params.atap_ataversion != 0xffff && 372 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 373 wd->sc_flags |= WDF_LBA; 374 #endif 375 376 if ((wd->sc_flags & WDF_LBA48) != 0) { 377 aprint_verbose(" LBA48 addressing\n"); 378 wd->sc_capacity = 379 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 380 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 381 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 382 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 383 } else if ((wd->sc_flags & WDF_LBA) != 0) { 384 aprint_verbose(" LBA addressing\n"); 385 wd->sc_capacity = 386 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 387 wd->sc_params.atap_capacity[0]; 388 } else { 389 aprint_verbose(" chs addressing\n"); 390 wd->sc_capacity = 391 wd->sc_params.atap_cylinders * 392 wd->sc_params.atap_heads * 393 wd->sc_params.atap_sectors; 394 } 395 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 396 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 397 "%d bytes/sect x %llu sectors\n", 398 pbuf, 399 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 400 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 401 wd->sc_params.atap_cylinders, 402 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 403 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 404 405 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 406 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 407 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 408 /* 409 * Initialize and attach the disk structure. 410 */ 411 /* we fill in dk_info later */ 412 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 413 disk_attach(&wd->sc_dk); 414 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 415 #if NRND > 0 416 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 417 RND_TYPE_DISK, 0); 418 #endif 419 420 /* Discover wedges on this disk. */ 421 dkwedge_discover(&wd->sc_dk); 422 423 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 424 aprint_error_dev(self, "couldn't establish power handler\n"); 425 } 426 427 static bool 428 wd_suspend(device_t dv PMF_FN_ARGS) 429 { 430 struct wd_softc *sc = device_private(dv); 431 432 wd_flushcache(sc, AT_WAIT); 433 wd_standby(sc, AT_WAIT); 434 return true; 435 } 436 437 int 438 wdactivate(device_t self, enum devact act) 439 { 440 int rv = 0; 441 442 switch (act) { 443 case DVACT_ACTIVATE: 444 rv = EOPNOTSUPP; 445 break; 446 447 case DVACT_DEACTIVATE: 448 /* 449 * Nothing to do; we key off the device's DVF_ACTIVATE. 450 */ 451 break; 452 } 453 return (rv); 454 } 455 456 int 457 wddetach(device_t self, int flags) 458 { 459 struct wd_softc *sc = device_private(self); 460 int bmaj, cmaj, i, mn, rc, s; 461 462 rc = 0; 463 mutex_enter(&sc->sc_dk.dk_openlock); 464 if (sc->sc_dk.dk_openmask == 0) 465 ; /* nothing to do */ 466 else if ((flags & DETACH_FORCE) == 0) 467 rc = EBUSY; 468 else 469 wdlastclose(sc); 470 mutex_exit(&sc->sc_dk.dk_openlock); 471 472 if (rc != 0) 473 return rc; 474 475 /* locate the major number */ 476 bmaj = bdevsw_lookup_major(&wd_bdevsw); 477 cmaj = cdevsw_lookup_major(&wd_cdevsw); 478 479 /* Nuke the vnodes for any open instances. */ 480 for (i = 0; i < MAXPARTITIONS; i++) { 481 mn = WDMINOR(device_unit(self), i); 482 vdevgone(bmaj, mn, mn, VBLK); 483 vdevgone(cmaj, mn, mn, VCHR); 484 } 485 486 /* Delete all of our wedges. */ 487 dkwedge_delall(&sc->sc_dk); 488 489 s = splbio(); 490 491 /* Kill off any queued buffers. */ 492 bufq_drain(sc->sc_q); 493 494 bufq_free(sc->sc_q); 495 sc->atabus->ata_killpending(sc->drvp); 496 497 splx(s); 498 499 /* Detach disk. */ 500 disk_detach(&sc->sc_dk); 501 disk_destroy(&sc->sc_dk); 502 503 #ifdef WD_SOFTBADSECT 504 /* Clean out the bad sector list */ 505 while (!SLIST_EMPTY(&sc->sc_bslist)) { 506 void *head = SLIST_FIRST(&sc->sc_bslist); 507 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 508 free(head, M_TEMP); 509 } 510 sc->sc_bscount = 0; 511 #endif 512 513 pmf_device_deregister(self); 514 515 #if NRND > 0 516 /* Unhook the entropy source. */ 517 rnd_detach_source(&sc->rnd_source); 518 #endif 519 520 callout_destroy(&sc->sc_restart_ch); 521 522 sc->drvp->drive_flags = 0; /* no drive any more here */ 523 524 return (0); 525 } 526 527 /* 528 * Read/write routine for a buffer. Validates the arguments and schedules the 529 * transfer. Does not wait for the transfer to complete. 530 */ 531 void 532 wdstrategy(struct buf *bp) 533 { 534 struct wd_softc *wd = 535 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 536 struct disklabel *lp = wd->sc_dk.dk_label; 537 daddr_t blkno; 538 int s; 539 540 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 541 DEBUG_XFERS); 542 543 /* Valid request? */ 544 if (bp->b_blkno < 0 || 545 (bp->b_bcount % lp->d_secsize) != 0 || 546 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 547 bp->b_error = EINVAL; 548 goto done; 549 } 550 551 /* If device invalidated (e.g. media change, door open), error. */ 552 if ((wd->sc_flags & WDF_LOADED) == 0) { 553 bp->b_error = EIO; 554 goto done; 555 } 556 557 /* If it's a null transfer, return immediately. */ 558 if (bp->b_bcount == 0) 559 goto done; 560 561 /* 562 * Do bounds checking, adjust transfer. if error, process. 563 * If end of partition, just return. 564 */ 565 if (WDPART(bp->b_dev) == RAW_PART) { 566 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 567 wd->sc_capacity) <= 0) 568 goto done; 569 } else { 570 if (bounds_check_with_label(&wd->sc_dk, bp, 571 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 572 goto done; 573 } 574 575 /* 576 * Now convert the block number to absolute and put it in 577 * terms of the device's logical block size. 578 */ 579 if (lp->d_secsize >= DEV_BSIZE) 580 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 581 else 582 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 583 584 if (WDPART(bp->b_dev) != RAW_PART) 585 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 586 587 bp->b_rawblkno = blkno; 588 589 #ifdef WD_SOFTBADSECT 590 /* 591 * If the transfer about to be attempted contains only a block that 592 * is known to be bad then return an error for the transfer without 593 * even attempting to start a transfer up under the premis that we 594 * will just end up doing more retries for a transfer that will end 595 * up failing again. 596 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 597 */ 598 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 599 struct disk_badsectors *dbs; 600 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 601 602 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 603 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 604 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 605 bp->b_error = EIO; 606 goto done; 607 } 608 } 609 #endif 610 611 /* Queue transfer on drive, activate drive and controller if idle. */ 612 s = splbio(); 613 bufq_put(wd->sc_q, bp); 614 wdstart(wd); 615 splx(s); 616 return; 617 done: 618 /* Toss transfer; we're done early. */ 619 bp->b_resid = bp->b_bcount; 620 biodone(bp); 621 } 622 623 /* 624 * Queue a drive for I/O. 625 */ 626 void 627 wdstart(void *arg) 628 { 629 struct wd_softc *wd = arg; 630 struct buf *bp = NULL; 631 632 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 633 DEBUG_XFERS); 634 while (wd->openings > 0) { 635 636 /* Is there a buf for us ? */ 637 if ((bp = bufq_get(wd->sc_q)) == NULL) 638 return; 639 640 /* 641 * Make the command. First lock the device 642 */ 643 wd->openings--; 644 645 wd->retries = 0; 646 __wdstart(wd, bp); 647 } 648 } 649 650 static void 651 wd_split_mod15_write(struct buf *bp) 652 { 653 struct buf *obp = bp->b_private; 654 struct wd_softc *sc = 655 device_lookup_private(&wd_cd, DISKUNIT(obp->b_dev)); 656 657 if (__predict_false(bp->b_error != 0)) { 658 /* 659 * Propagate the error. If this was the first half of 660 * the original transfer, make sure to account for that 661 * in the residual. 662 */ 663 if (bp->b_data == obp->b_data) 664 bp->b_resid += bp->b_bcount; 665 goto done; 666 } 667 668 /* 669 * If this was the second half of the transfer, we're all done! 670 */ 671 if (bp->b_data != obp->b_data) 672 goto done; 673 674 /* 675 * Advance the pointer to the second half and issue that command 676 * using the same opening. 677 */ 678 bp->b_flags = obp->b_flags; 679 bp->b_oflags = obp->b_oflags; 680 bp->b_cflags = obp->b_cflags; 681 bp->b_data = (char *)bp->b_data + bp->b_bcount; 682 bp->b_blkno += (bp->b_bcount / 512); 683 bp->b_rawblkno += (bp->b_bcount / 512); 684 __wdstart(sc, bp); 685 return; 686 687 done: 688 obp->b_error = bp->b_error; 689 obp->b_resid = bp->b_resid; 690 putiobuf(bp); 691 biodone(obp); 692 sc->openings++; 693 /* wddone() will call wdstart() */ 694 } 695 696 void 697 __wdstart(struct wd_softc *wd, struct buf *bp) 698 { 699 700 /* 701 * Deal with the "split mod15 write" quirk. We just divide the 702 * transfer in two, doing the first half and then then second half 703 * with the same command opening. 704 * 705 * Note we MUST do this here, because we can't let insertion 706 * into the bufq cause the transfers to be re-merged. 707 */ 708 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 709 (bp->b_flags & B_READ) == 0 && 710 bp->b_bcount > 512 && 711 ((bp->b_bcount / 512) % 15) == 1)) { 712 struct buf *nbp; 713 714 /* already at splbio */ 715 nbp = getiobuf(NULL, false); 716 if (__predict_false(nbp == NULL)) { 717 /* No memory -- fail the iop. */ 718 bp->b_error = ENOMEM; 719 bp->b_resid = bp->b_bcount; 720 biodone(bp); 721 wd->openings++; 722 return; 723 } 724 725 nbp->b_error = 0; 726 nbp->b_proc = bp->b_proc; 727 nbp->b_dev = bp->b_dev; 728 729 nbp->b_bcount = bp->b_bcount / 2; 730 nbp->b_bufsize = bp->b_bcount / 2; 731 nbp->b_data = bp->b_data; 732 733 nbp->b_blkno = bp->b_blkno; 734 nbp->b_rawblkno = bp->b_rawblkno; 735 736 nbp->b_flags = bp->b_flags; 737 nbp->b_oflags = bp->b_oflags; 738 nbp->b_cflags = bp->b_cflags; 739 nbp->b_iodone = wd_split_mod15_write; 740 741 /* Put ptr to orig buf in b_private and use new buf */ 742 nbp->b_private = bp; 743 744 BIO_COPYPRIO(nbp, bp); 745 746 bp = nbp; 747 } 748 749 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 750 wd->sc_wdc_bio.blkdone =0; 751 wd->sc_bp = bp; 752 /* 753 * If we're retrying, retry in single-sector mode. This will give us 754 * the sector number of the problem, and will eventually allow the 755 * transfer to succeed. 756 */ 757 if (wd->retries >= WDIORETRIES_SINGLE) 758 wd->sc_wdc_bio.flags = ATA_SINGLE; 759 else 760 wd->sc_wdc_bio.flags = 0; 761 if (wd->sc_flags & WDF_LBA48 && 762 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 763 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 764 wd->sc_wdc_bio.flags |= ATA_LBA48; 765 if (wd->sc_flags & WDF_LBA) 766 wd->sc_wdc_bio.flags |= ATA_LBA; 767 if (bp->b_flags & B_READ) 768 wd->sc_wdc_bio.flags |= ATA_READ; 769 wd->sc_wdc_bio.bcount = bp->b_bcount; 770 wd->sc_wdc_bio.databuf = bp->b_data; 771 /* Instrumentation. */ 772 disk_busy(&wd->sc_dk); 773 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 774 case ATACMD_TRY_AGAIN: 775 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 776 break; 777 case ATACMD_QUEUED: 778 case ATACMD_COMPLETE: 779 break; 780 default: 781 panic("__wdstart: bad return code from ata_bio()"); 782 } 783 } 784 785 void 786 wddone(void *v) 787 { 788 struct wd_softc *wd = device_private(v); 789 struct buf *bp = wd->sc_bp; 790 const char *errmsg; 791 int do_perror = 0; 792 int nblks; 793 794 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 795 DEBUG_XFERS); 796 if (bp == NULL) 797 return; 798 bp->b_resid = wd->sc_wdc_bio.bcount; 799 switch (wd->sc_wdc_bio.error) { 800 case ERR_DMA: 801 errmsg = "DMA error"; 802 goto retry; 803 case ERR_DF: 804 errmsg = "device fault"; 805 goto retry; 806 case TIMEOUT: 807 errmsg = "device timeout"; 808 goto retry; 809 case ERR_RESET: 810 errmsg = "channel reset"; 811 goto retry2; 812 case ERROR: 813 /* Don't care about media change bits */ 814 if (wd->sc_wdc_bio.r_error != 0 && 815 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 816 goto noerror; 817 errmsg = "error"; 818 do_perror = 1; 819 if ((wd->sc_wdc_bio.r_error & (WDCE_IDNF | WDCE_ABRT)) && 820 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 821 nblks = wd->sc_wdc_bio.bcount / 822 wd->sc_dk.dk_label->d_secsize; 823 /* 824 * If we get a "id not found" when crossing the 825 * LBA48_THRESHOLD, and the drive is larger than 826 * 128GB, then we can assume the drive has the 827 * LBA48 bug and we switch to LBA48. 828 */ 829 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 830 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 831 wd->sc_capacity > LBA48_THRESHOLD + 1) { 832 errmsg = "LBA48 bug"; 833 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 834 do_perror = 0; 835 goto retry2; 836 } 837 } 838 retry: /* Just reset and retry. Can we do more ? */ 839 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 840 retry2: 841 diskerr(bp, "wd", errmsg, LOG_PRINTF, 842 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 843 if (wd->retries < WDIORETRIES) 844 printf(", retrying"); 845 printf("\n"); 846 if (do_perror) 847 wdperror(wd); 848 if (wd->retries < WDIORETRIES) { 849 wd->retries++; 850 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 851 wdrestart, wd); 852 return; 853 } 854 855 #ifdef WD_SOFTBADSECT 856 /* 857 * Not all errors indicate a failed block but those that do, 858 * put the block on the bad-block list for the device. Only 859 * do this for reads because the drive should do it for writes, 860 * itself, according to Manuel. 861 */ 862 if ((bp->b_flags & B_READ) && 863 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 864 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 865 struct disk_badsectors *dbs; 866 867 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 868 dbs->dbs_min = bp->b_rawblkno; 869 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 870 microtime(&dbs->dbs_failedat); 871 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 872 wd->sc_bscount++; 873 } 874 #endif 875 bp->b_error = EIO; 876 break; 877 case NOERROR: 878 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 879 aprint_error_dev(wd->sc_dev, 880 "soft error (corrected)\n"); 881 break; 882 case ERR_NODEV: 883 bp->b_error = EIO; 884 break; 885 } 886 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 887 (bp->b_flags & B_READ)); 888 #if NRND > 0 889 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 890 #endif 891 /* XXX Yuck, but we don't want to increment openings in this case */ 892 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 893 biodone(bp); 894 else { 895 biodone(bp); 896 wd->openings++; 897 } 898 wdstart(wd); 899 } 900 901 void 902 wdrestart(void *v) 903 { 904 struct wd_softc *wd = v; 905 struct buf *bp = wd->sc_bp; 906 int s; 907 908 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 909 DEBUG_XFERS); 910 s = splbio(); 911 __wdstart(v, bp); 912 splx(s); 913 } 914 915 int 916 wdread(dev_t dev, struct uio *uio, int flags) 917 { 918 919 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 920 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 921 } 922 923 int 924 wdwrite(dev_t dev, struct uio *uio, int flags) 925 { 926 927 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 928 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 929 } 930 931 int 932 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 933 { 934 struct wd_softc *wd; 935 int part, error; 936 937 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 938 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 939 if (wd == NULL) 940 return (ENXIO); 941 942 if (! device_is_active(wd->sc_dev)) 943 return (ENODEV); 944 945 part = WDPART(dev); 946 947 mutex_enter(&wd->sc_dk.dk_openlock); 948 949 /* 950 * If there are wedges, and this is not RAW_PART, then we 951 * need to fail. 952 */ 953 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 954 error = EBUSY; 955 goto bad1; 956 } 957 958 /* 959 * If this is the first open of this device, add a reference 960 * to the adapter. 961 */ 962 if (wd->sc_dk.dk_openmask == 0 && 963 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 964 goto bad1; 965 966 if (wd->sc_dk.dk_openmask != 0) { 967 /* 968 * If any partition is open, but the disk has been invalidated, 969 * disallow further opens. 970 */ 971 if ((wd->sc_flags & WDF_LOADED) == 0) { 972 error = EIO; 973 goto bad2; 974 } 975 } else { 976 if ((wd->sc_flags & WDF_LOADED) == 0) { 977 wd->sc_flags |= WDF_LOADED; 978 979 /* Load the physical device parameters. */ 980 wd_get_params(wd, AT_WAIT, &wd->sc_params); 981 982 /* Load the partition info if not already loaded. */ 983 wdgetdisklabel(wd); 984 } 985 } 986 987 /* Check that the partition exists. */ 988 if (part != RAW_PART && 989 (part >= wd->sc_dk.dk_label->d_npartitions || 990 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 991 error = ENXIO; 992 goto bad2; 993 } 994 995 /* Insure only one open at a time. */ 996 switch (fmt) { 997 case S_IFCHR: 998 wd->sc_dk.dk_copenmask |= (1 << part); 999 break; 1000 case S_IFBLK: 1001 wd->sc_dk.dk_bopenmask |= (1 << part); 1002 break; 1003 } 1004 wd->sc_dk.dk_openmask = 1005 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1006 1007 mutex_exit(&wd->sc_dk.dk_openlock); 1008 return 0; 1009 1010 bad2: 1011 if (wd->sc_dk.dk_openmask == 0) 1012 wd->atabus->ata_delref(wd->drvp); 1013 bad1: 1014 mutex_exit(&wd->sc_dk.dk_openlock); 1015 return error; 1016 } 1017 1018 /* 1019 * Caller must hold wd->sc_dk.dk_openlock. 1020 */ 1021 static void 1022 wdlastclose(struct wd_softc *wd) 1023 { 1024 wd_flushcache(wd, AT_WAIT); 1025 1026 if (! (wd->sc_flags & WDF_KLABEL)) 1027 wd->sc_flags &= ~WDF_LOADED; 1028 1029 wd->atabus->ata_delref(wd->drvp); 1030 } 1031 1032 int 1033 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1034 { 1035 struct wd_softc *wd = 1036 device_lookup_private(&wd_cd, WDUNIT(dev)); 1037 int part = WDPART(dev); 1038 1039 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1040 1041 mutex_enter(&wd->sc_dk.dk_openlock); 1042 1043 switch (fmt) { 1044 case S_IFCHR: 1045 wd->sc_dk.dk_copenmask &= ~(1 << part); 1046 break; 1047 case S_IFBLK: 1048 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1049 break; 1050 } 1051 wd->sc_dk.dk_openmask = 1052 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1053 1054 if (wd->sc_dk.dk_openmask == 0) 1055 wdlastclose(wd); 1056 1057 mutex_exit(&wd->sc_dk.dk_openlock); 1058 return 0; 1059 } 1060 1061 void 1062 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1063 { 1064 1065 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1066 memset(lp, 0, sizeof(struct disklabel)); 1067 1068 lp->d_secsize = DEV_BSIZE; 1069 lp->d_ntracks = wd->sc_params.atap_heads; 1070 lp->d_nsectors = wd->sc_params.atap_sectors; 1071 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1072 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1073 wd->sc_params.atap_cylinders; 1074 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1075 1076 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1077 lp->d_type = DTYPE_ST506; 1078 else 1079 lp->d_type = DTYPE_ESDI; 1080 1081 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1082 strncpy(lp->d_packname, "fictitious", 16); 1083 if (wd->sc_capacity > UINT32_MAX) 1084 lp->d_secperunit = UINT32_MAX; 1085 else 1086 lp->d_secperunit = wd->sc_capacity; 1087 lp->d_rpm = 3600; 1088 lp->d_interleave = 1; 1089 lp->d_flags = 0; 1090 1091 lp->d_partitions[RAW_PART].p_offset = 0; 1092 lp->d_partitions[RAW_PART].p_size = 1093 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1094 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1095 lp->d_npartitions = RAW_PART + 1; 1096 1097 lp->d_magic = DISKMAGIC; 1098 lp->d_magic2 = DISKMAGIC; 1099 lp->d_checksum = dkcksum(lp); 1100 } 1101 1102 /* 1103 * Fabricate a default disk label, and try to read the correct one. 1104 */ 1105 void 1106 wdgetdisklabel(struct wd_softc *wd) 1107 { 1108 struct disklabel *lp = wd->sc_dk.dk_label; 1109 const char *errstring; 1110 int s; 1111 1112 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1113 1114 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1115 1116 wdgetdefaultlabel(wd, lp); 1117 1118 wd->sc_badsect[0] = -1; 1119 1120 if (wd->drvp->state > RESET) { 1121 s = splbio(); 1122 wd->drvp->drive_flags |= DRIVE_RESET; 1123 splx(s); 1124 } 1125 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1126 RAW_PART), wdstrategy, lp, 1127 wd->sc_dk.dk_cpulabel); 1128 if (errstring) { 1129 /* 1130 * This probably happened because the drive's default 1131 * geometry doesn't match the DOS geometry. We 1132 * assume the DOS geometry is now in the label and try 1133 * again. XXX This is a kluge. 1134 */ 1135 if (wd->drvp->state > RESET) { 1136 s = splbio(); 1137 wd->drvp->drive_flags |= DRIVE_RESET; 1138 splx(s); 1139 } 1140 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1141 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1142 } 1143 if (errstring) { 1144 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1145 return; 1146 } 1147 1148 if (wd->drvp->state > RESET) { 1149 s = splbio(); 1150 wd->drvp->drive_flags |= DRIVE_RESET; 1151 splx(s); 1152 } 1153 #ifdef HAS_BAD144_HANDLING 1154 if ((lp->d_flags & D_BADSECT) != 0) 1155 bad144intern(wd); 1156 #endif 1157 } 1158 1159 void 1160 wdperror(const struct wd_softc *wd) 1161 { 1162 static const char *const errstr0_3[] = {"address mark not found", 1163 "track 0 not found", "aborted command", "media change requested", 1164 "id not found", "media changed", "uncorrectable data error", 1165 "bad block detected"}; 1166 static const char *const errstr4_5[] = { 1167 "obsolete (address mark not found)", 1168 "no media/write protected", "aborted command", 1169 "media change requested", "id not found", "media changed", 1170 "uncorrectable data error", "interface CRC error"}; 1171 const char *const *errstr; 1172 int i; 1173 const char *sep = ""; 1174 1175 const char *devname = device_xname(wd->sc_dev); 1176 struct ata_drive_datas *drvp = wd->drvp; 1177 int errno = wd->sc_wdc_bio.r_error; 1178 1179 if (drvp->ata_vers >= 4) 1180 errstr = errstr4_5; 1181 else 1182 errstr = errstr0_3; 1183 1184 printf("%s: (", devname); 1185 1186 if (errno == 0) 1187 printf("error not notified"); 1188 1189 for (i = 0; i < 8; i++) { 1190 if (errno & (1 << i)) { 1191 printf("%s%s", sep, errstr[i]); 1192 sep = ", "; 1193 } 1194 } 1195 printf(")\n"); 1196 } 1197 1198 int 1199 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1200 { 1201 struct wd_softc *wd = 1202 device_lookup_private(&wd_cd, WDUNIT(dev)); 1203 int error = 0, s; 1204 #ifdef __HAVE_OLD_DISKLABEL 1205 struct disklabel *newlabel = NULL; 1206 #endif 1207 1208 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1209 1210 if ((wd->sc_flags & WDF_LOADED) == 0) 1211 return EIO; 1212 1213 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1214 if (error != EPASSTHROUGH) 1215 return (error); 1216 1217 switch (xfer) { 1218 #ifdef HAS_BAD144_HANDLING 1219 case DIOCSBAD: 1220 if ((flag & FWRITE) == 0) 1221 return EBADF; 1222 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1223 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1224 bad144intern(wd); 1225 return 0; 1226 #endif 1227 #ifdef WD_SOFTBADSECT 1228 case DIOCBSLIST : 1229 { 1230 u_int32_t count, missing, skip; 1231 struct disk_badsecinfo dbsi; 1232 struct disk_badsectors *dbs; 1233 size_t available; 1234 uint8_t *laddr; 1235 1236 dbsi = *(struct disk_badsecinfo *)addr; 1237 missing = wd->sc_bscount; 1238 count = 0; 1239 available = dbsi.dbsi_bufsize; 1240 skip = dbsi.dbsi_skip; 1241 laddr = (uint8_t *)dbsi.dbsi_buffer; 1242 1243 /* 1244 * We start this loop with the expectation that all of the 1245 * entries will be missed and decrement this counter each 1246 * time we either skip over one (already copied out) or 1247 * we actually copy it back to user space. The structs 1248 * holding the bad sector information are copied directly 1249 * back to user space whilst the summary is returned via 1250 * the struct passed in via the ioctl. 1251 */ 1252 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1253 if (skip > 0) { 1254 missing--; 1255 skip--; 1256 continue; 1257 } 1258 if (available < sizeof(*dbs)) 1259 break; 1260 available -= sizeof(*dbs); 1261 copyout(dbs, laddr, sizeof(*dbs)); 1262 laddr += sizeof(*dbs); 1263 missing--; 1264 count++; 1265 } 1266 dbsi.dbsi_left = missing; 1267 dbsi.dbsi_copied = count; 1268 *(struct disk_badsecinfo *)addr = dbsi; 1269 return 0; 1270 } 1271 1272 case DIOCBSFLUSH : 1273 /* Clean out the bad sector list */ 1274 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1275 void *head = SLIST_FIRST(&wd->sc_bslist); 1276 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1277 free(head, M_TEMP); 1278 } 1279 wd->sc_bscount = 0; 1280 return 0; 1281 #endif 1282 case DIOCGDINFO: 1283 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1284 return 0; 1285 #ifdef __HAVE_OLD_DISKLABEL 1286 case ODIOCGDINFO: 1287 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1288 if (newlabel == NULL) 1289 return EIO; 1290 *newlabel = *(wd->sc_dk.dk_label); 1291 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1292 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1293 else 1294 error = ENOTTY; 1295 free(newlabel, M_TEMP); 1296 return error; 1297 #endif 1298 1299 case DIOCGPART: 1300 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1301 ((struct partinfo *)addr)->part = 1302 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1303 return 0; 1304 1305 case DIOCWDINFO: 1306 case DIOCSDINFO: 1307 #ifdef __HAVE_OLD_DISKLABEL 1308 case ODIOCWDINFO: 1309 case ODIOCSDINFO: 1310 #endif 1311 { 1312 struct disklabel *lp; 1313 1314 if ((flag & FWRITE) == 0) 1315 return EBADF; 1316 1317 #ifdef __HAVE_OLD_DISKLABEL 1318 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1319 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1320 if (newlabel == NULL) 1321 return EIO; 1322 memset(newlabel, 0, sizeof newlabel); 1323 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1324 lp = newlabel; 1325 } else 1326 #endif 1327 lp = (struct disklabel *)addr; 1328 1329 mutex_enter(&wd->sc_dk.dk_openlock); 1330 wd->sc_flags |= WDF_LABELLING; 1331 1332 error = setdisklabel(wd->sc_dk.dk_label, 1333 lp, /*wd->sc_dk.dk_openmask : */0, 1334 wd->sc_dk.dk_cpulabel); 1335 if (error == 0) { 1336 if (wd->drvp->state > RESET) { 1337 s = splbio(); 1338 wd->drvp->drive_flags |= DRIVE_RESET; 1339 splx(s); 1340 } 1341 if (xfer == DIOCWDINFO 1342 #ifdef __HAVE_OLD_DISKLABEL 1343 || xfer == ODIOCWDINFO 1344 #endif 1345 ) 1346 error = writedisklabel(WDLABELDEV(dev), 1347 wdstrategy, wd->sc_dk.dk_label, 1348 wd->sc_dk.dk_cpulabel); 1349 } 1350 1351 wd->sc_flags &= ~WDF_LABELLING; 1352 mutex_exit(&wd->sc_dk.dk_openlock); 1353 #ifdef __HAVE_OLD_DISKLABEL 1354 if (newlabel != NULL) 1355 free(newlabel, M_TEMP); 1356 #endif 1357 return error; 1358 } 1359 1360 case DIOCKLABEL: 1361 if (*(int *)addr) 1362 wd->sc_flags |= WDF_KLABEL; 1363 else 1364 wd->sc_flags &= ~WDF_KLABEL; 1365 return 0; 1366 1367 case DIOCWLABEL: 1368 if ((flag & FWRITE) == 0) 1369 return EBADF; 1370 if (*(int *)addr) 1371 wd->sc_flags |= WDF_WLABEL; 1372 else 1373 wd->sc_flags &= ~WDF_WLABEL; 1374 return 0; 1375 1376 case DIOCGDEFLABEL: 1377 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1378 return 0; 1379 #ifdef __HAVE_OLD_DISKLABEL 1380 case ODIOCGDEFLABEL: 1381 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1382 if (newlabel == NULL) 1383 return EIO; 1384 wdgetdefaultlabel(wd, newlabel); 1385 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1386 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1387 else 1388 error = ENOTTY; 1389 free(newlabel, M_TEMP); 1390 return error; 1391 #endif 1392 1393 #ifdef notyet 1394 case DIOCWFORMAT: 1395 if ((flag & FWRITE) == 0) 1396 return EBADF; 1397 { 1398 register struct format_op *fop; 1399 struct iovec aiov; 1400 struct uio auio; 1401 1402 fop = (struct format_op *)addr; 1403 aiov.iov_base = fop->df_buf; 1404 aiov.iov_len = fop->df_count; 1405 auio.uio_iov = &aiov; 1406 auio.uio_iovcnt = 1; 1407 auio.uio_resid = fop->df_count; 1408 auio.uio_offset = 1409 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1410 auio.uio_vmspace = l->l_proc->p_vmspace; 1411 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1412 &auio); 1413 fop->df_count -= auio.uio_resid; 1414 fop->df_reg[0] = wdc->sc_status; 1415 fop->df_reg[1] = wdc->sc_error; 1416 return error; 1417 } 1418 #endif 1419 case DIOCGCACHE: 1420 return wd_getcache(wd, (int *)addr); 1421 1422 case DIOCSCACHE: 1423 return wd_setcache(wd, *(int *)addr); 1424 1425 case DIOCCACHESYNC: 1426 return wd_flushcache(wd, AT_WAIT); 1427 1428 case ATAIOCCOMMAND: 1429 /* 1430 * Make sure this command is (relatively) safe first 1431 */ 1432 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1433 (flag & FWRITE) == 0) 1434 return (EBADF); 1435 { 1436 struct wd_ioctl *wi; 1437 atareq_t *atareq = (atareq_t *) addr; 1438 int error1; 1439 1440 wi = wi_get(); 1441 wi->wi_softc = wd; 1442 wi->wi_atareq = *atareq; 1443 1444 if (atareq->datalen && atareq->flags & 1445 (ATACMD_READ | ATACMD_WRITE)) { 1446 void *tbuf; 1447 if (atareq->datalen < DEV_BSIZE 1448 && atareq->command == WDCC_IDENTIFY) { 1449 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1450 wi->wi_iov.iov_base = tbuf; 1451 wi->wi_iov.iov_len = DEV_BSIZE; 1452 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1453 } else { 1454 tbuf = NULL; 1455 wi->wi_iov.iov_base = atareq->databuf; 1456 wi->wi_iov.iov_len = atareq->datalen; 1457 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1458 } 1459 wi->wi_uio.uio_iov = &wi->wi_iov; 1460 wi->wi_uio.uio_iovcnt = 1; 1461 wi->wi_uio.uio_resid = atareq->datalen; 1462 wi->wi_uio.uio_offset = 0; 1463 wi->wi_uio.uio_rw = 1464 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1465 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1466 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1467 minphys, &wi->wi_uio); 1468 if (tbuf != NULL && error1 == 0) { 1469 error1 = copyout(tbuf, atareq->databuf, 1470 atareq->datalen); 1471 free(tbuf, M_TEMP); 1472 } 1473 } else { 1474 /* No need to call physio if we don't have any 1475 user data */ 1476 wi->wi_bp.b_flags = 0; 1477 wi->wi_bp.b_data = 0; 1478 wi->wi_bp.b_bcount = 0; 1479 wi->wi_bp.b_dev = 0; 1480 wi->wi_bp.b_proc = l->l_proc; 1481 wdioctlstrategy(&wi->wi_bp); 1482 error1 = wi->wi_bp.b_error; 1483 } 1484 *atareq = wi->wi_atareq; 1485 wi_free(wi); 1486 return(error1); 1487 } 1488 1489 case DIOCAWEDGE: 1490 { 1491 struct dkwedge_info *dkw = (void *) addr; 1492 1493 if ((flag & FWRITE) == 0) 1494 return (EBADF); 1495 1496 /* If the ioctl happens here, the parent is us. */ 1497 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1498 return (dkwedge_add(dkw)); 1499 } 1500 1501 case DIOCDWEDGE: 1502 { 1503 struct dkwedge_info *dkw = (void *) addr; 1504 1505 if ((flag & FWRITE) == 0) 1506 return (EBADF); 1507 1508 /* If the ioctl happens here, the parent is us. */ 1509 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1510 return (dkwedge_del(dkw)); 1511 } 1512 1513 case DIOCLWEDGES: 1514 { 1515 struct dkwedge_list *dkwl = (void *) addr; 1516 1517 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1518 } 1519 1520 case DIOCGSTRATEGY: 1521 { 1522 struct disk_strategy *dks = (void *)addr; 1523 1524 s = splbio(); 1525 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1526 sizeof(dks->dks_name)); 1527 splx(s); 1528 dks->dks_paramlen = 0; 1529 1530 return 0; 1531 } 1532 1533 case DIOCSSTRATEGY: 1534 { 1535 struct disk_strategy *dks = (void *)addr; 1536 struct bufq_state *new; 1537 struct bufq_state *old; 1538 1539 if ((flag & FWRITE) == 0) { 1540 return EBADF; 1541 } 1542 if (dks->dks_param != NULL) { 1543 return EINVAL; 1544 } 1545 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1546 error = bufq_alloc(&new, dks->dks_name, 1547 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1548 if (error) { 1549 return error; 1550 } 1551 s = splbio(); 1552 old = wd->sc_q; 1553 bufq_move(new, old); 1554 wd->sc_q = new; 1555 splx(s); 1556 bufq_free(old); 1557 1558 return 0; 1559 } 1560 1561 default: 1562 return ENOTTY; 1563 } 1564 1565 #ifdef DIAGNOSTIC 1566 panic("wdioctl: impossible"); 1567 #endif 1568 } 1569 1570 #ifdef B_FORMAT 1571 int 1572 wdformat(struct buf *bp) 1573 { 1574 1575 bp->b_flags |= B_FORMAT; 1576 return wdstrategy(bp); 1577 } 1578 #endif 1579 1580 int 1581 wdsize(dev_t dev) 1582 { 1583 struct wd_softc *wd; 1584 int part, omask; 1585 int size; 1586 1587 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1588 1589 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1590 if (wd == NULL) 1591 return (-1); 1592 1593 part = WDPART(dev); 1594 omask = wd->sc_dk.dk_openmask & (1 << part); 1595 1596 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1597 return (-1); 1598 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1599 size = -1; 1600 else 1601 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1602 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1603 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1604 return (-1); 1605 return (size); 1606 } 1607 1608 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1609 static int wddoingadump = 0; 1610 static int wddumprecalibrated = 0; 1611 1612 /* 1613 * Dump core after a system crash. 1614 */ 1615 int 1616 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1617 { 1618 struct wd_softc *wd; /* disk unit to do the I/O */ 1619 struct disklabel *lp; /* disk's disklabel */ 1620 int part, err; 1621 int nblks; /* total number of sectors left to write */ 1622 1623 /* Check if recursive dump; if so, punt. */ 1624 if (wddoingadump) 1625 return EFAULT; 1626 wddoingadump = 1; 1627 1628 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1629 if (wd == NULL) 1630 return (ENXIO); 1631 1632 part = WDPART(dev); 1633 1634 /* Convert to disk sectors. Request must be a multiple of size. */ 1635 lp = wd->sc_dk.dk_label; 1636 if ((size % lp->d_secsize) != 0) 1637 return EFAULT; 1638 nblks = size / lp->d_secsize; 1639 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1640 1641 /* Check transfer bounds against partition size. */ 1642 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1643 return EINVAL; 1644 1645 /* Offset block number to start of partition. */ 1646 blkno += lp->d_partitions[part].p_offset; 1647 1648 /* Recalibrate, if first dump transfer. */ 1649 if (wddumprecalibrated == 0) { 1650 wddumprecalibrated = 1; 1651 (*wd->atabus->ata_reset_drive)(wd->drvp, 1652 AT_POLL | AT_RST_EMERG); 1653 wd->drvp->state = RESET; 1654 } 1655 1656 wd->sc_bp = NULL; 1657 wd->sc_wdc_bio.blkno = blkno; 1658 wd->sc_wdc_bio.flags = ATA_POLL; 1659 if (wd->sc_flags & WDF_LBA48 && 1660 (blkno > LBA48_THRESHOLD || 1661 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1662 wd->sc_wdc_bio.flags |= ATA_LBA48; 1663 if (wd->sc_flags & WDF_LBA) 1664 wd->sc_wdc_bio.flags |= ATA_LBA; 1665 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1666 wd->sc_wdc_bio.databuf = va; 1667 #ifndef WD_DUMP_NOT_TRUSTED 1668 switch (err = wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1669 case ATACMD_TRY_AGAIN: 1670 panic("wddump: try again"); 1671 break; 1672 case ATACMD_QUEUED: 1673 panic("wddump: polled command has been queued"); 1674 break; 1675 case ATACMD_COMPLETE: 1676 break; 1677 default: 1678 panic("wddump: unknown atacmd code %d", err); 1679 } 1680 switch(err = wd->sc_wdc_bio.error) { 1681 case TIMEOUT: 1682 printf("wddump: device timed out"); 1683 err = EIO; 1684 break; 1685 case ERR_DF: 1686 printf("wddump: drive fault"); 1687 err = EIO; 1688 break; 1689 case ERR_DMA: 1690 printf("wddump: DMA error"); 1691 err = EIO; 1692 break; 1693 case ERROR: 1694 printf("wddump: "); 1695 wdperror(wd); 1696 err = EIO; 1697 break; 1698 case NOERROR: 1699 err = 0; 1700 break; 1701 default: 1702 panic("wddump: unknown error type %d", err); 1703 } 1704 if (err != 0) { 1705 printf("\n"); 1706 return err; 1707 } 1708 #else /* WD_DUMP_NOT_TRUSTED */ 1709 /* Let's just talk about this first... */ 1710 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1711 unit, va, cylin, head, sector); 1712 delay(500 * 1000); /* half a second */ 1713 #endif 1714 1715 wddoingadump = 0; 1716 return 0; 1717 } 1718 1719 #ifdef HAS_BAD144_HANDLING 1720 /* 1721 * Internalize the bad sector table. 1722 */ 1723 void 1724 bad144intern(struct wd_softc *wd) 1725 { 1726 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1727 struct disklabel *lp = wd->sc_dk.dk_label; 1728 int i = 0; 1729 1730 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1731 1732 for (; i < NBT_BAD; i++) { 1733 if (bt->bt_bad[i].bt_cyl == 0xffff) 1734 break; 1735 wd->sc_badsect[i] = 1736 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1737 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1738 (bt->bt_bad[i].bt_trksec & 0xff); 1739 } 1740 for (; i < NBT_BAD+1; i++) 1741 wd->sc_badsect[i] = -1; 1742 } 1743 #endif 1744 1745 static void 1746 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1747 { 1748 prop_dictionary_t disk_info, odisk_info, geom; 1749 const char *cp; 1750 1751 disk_info = prop_dictionary_create(); 1752 1753 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1754 cp = "ST506"; 1755 else { 1756 /* XXX Should have a case for ATA here, too. */ 1757 cp = "ESDI"; 1758 } 1759 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1760 1761 geom = prop_dictionary_create(); 1762 1763 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1764 1765 prop_dictionary_set_uint32(geom, "sector-size", 1766 DEV_BSIZE /* XXX 512? */); 1767 1768 prop_dictionary_set_uint16(geom, "sectors-per-track", 1769 wd->sc_params.atap_sectors); 1770 1771 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1772 wd->sc_params.atap_heads); 1773 1774 if (wd->sc_flags & WDF_LBA) 1775 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1776 wd->sc_capacity / 1777 (wd->sc_params.atap_heads * 1778 wd->sc_params.atap_sectors)); 1779 else 1780 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1781 wd->sc_params.atap_cylinders); 1782 1783 prop_dictionary_set(disk_info, "geometry", geom); 1784 prop_object_release(geom); 1785 1786 prop_dictionary_set(device_properties(wd->sc_dev), 1787 "disk-info", disk_info); 1788 1789 /* 1790 * Don't release disk_info here; we keep a reference to it. 1791 * disk_detach() will release it when we go away. 1792 */ 1793 1794 odisk_info = wd->sc_dk.dk_info; 1795 wd->sc_dk.dk_info = disk_info; 1796 if (odisk_info) 1797 prop_object_release(odisk_info); 1798 } 1799 1800 int 1801 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1802 { 1803 1804 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1805 case CMD_AGAIN: 1806 return 1; 1807 case CMD_ERR: 1808 /* 1809 * We `know' there's a drive here; just assume it's old. 1810 * This geometry is only used to read the MBR and print a 1811 * (false) attach message. 1812 */ 1813 strncpy(params->atap_model, "ST506", 1814 sizeof params->atap_model); 1815 params->atap_config = ATA_CFG_FIXED; 1816 params->atap_cylinders = 1024; 1817 params->atap_heads = 8; 1818 params->atap_sectors = 17; 1819 params->atap_multi = 1; 1820 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1821 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1822 /* FALLTHROUGH */ 1823 case CMD_OK: 1824 wd_params_to_properties(wd, params); 1825 return 0; 1826 default: 1827 panic("wd_get_params: bad return code from ata_get_params"); 1828 /* NOTREACHED */ 1829 } 1830 } 1831 1832 int 1833 wd_getcache(struct wd_softc *wd, int *bitsp) 1834 { 1835 struct ataparams params; 1836 1837 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1838 return EIO; 1839 if (params.atap_cmd_set1 == 0x0000 || 1840 params.atap_cmd_set1 == 0xffff || 1841 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1842 *bitsp = 0; 1843 return 0; 1844 } 1845 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1846 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1847 *bitsp |= DKCACHE_WRITE; 1848 1849 return 0; 1850 } 1851 1852 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1853 1854 int 1855 wd_setcache(struct wd_softc *wd, int bits) 1856 { 1857 struct ataparams params; 1858 struct ata_command ata_c; 1859 1860 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1861 return EIO; 1862 1863 if (params.atap_cmd_set1 == 0x0000 || 1864 params.atap_cmd_set1 == 0xffff || 1865 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1866 return EOPNOTSUPP; 1867 1868 if ((bits & DKCACHE_READ) == 0 || 1869 (bits & DKCACHE_SAVE) != 0) 1870 return EOPNOTSUPP; 1871 1872 memset(&ata_c, 0, sizeof(struct ata_command)); 1873 ata_c.r_command = SET_FEATURES; 1874 ata_c.r_st_bmask = 0; 1875 ata_c.r_st_pmask = 0; 1876 ata_c.timeout = 30000; /* 30s timeout */ 1877 ata_c.flags = AT_WAIT; 1878 if (bits & DKCACHE_WRITE) 1879 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1880 else 1881 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1882 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1883 aprint_error_dev(wd->sc_dev, 1884 "wd_setcache command not complete\n"); 1885 return EIO; 1886 } 1887 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1888 char sbuf[sizeof(at_errbits) + 64]; 1889 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1890 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1891 return EIO; 1892 } 1893 return 0; 1894 } 1895 1896 static int 1897 wd_standby(struct wd_softc *wd, int flags) 1898 { 1899 struct ata_command ata_c; 1900 1901 memset(&ata_c, 0, sizeof(struct ata_command)); 1902 ata_c.r_command = WDCC_STANDBY_IMMED; 1903 ata_c.r_st_bmask = WDCS_DRDY; 1904 ata_c.r_st_pmask = WDCS_DRDY; 1905 ata_c.flags = flags; 1906 ata_c.timeout = 30000; /* 30s timeout */ 1907 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1908 aprint_error_dev(wd->sc_dev, 1909 "standby immediate command didn't complete\n"); 1910 return EIO; 1911 } 1912 if (ata_c.flags & AT_ERROR) { 1913 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1914 return ENODEV; 1915 } 1916 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1917 char sbuf[sizeof(at_errbits) + 64]; 1918 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1919 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1920 return EIO; 1921 } 1922 return 0; 1923 } 1924 1925 int 1926 wd_flushcache(struct wd_softc *wd, int flags) 1927 { 1928 struct ata_command ata_c; 1929 1930 /* 1931 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1932 * only ATA-2 and still support it. 1933 */ 1934 if (wd->drvp->ata_vers < 4 && 1935 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1936 wd->sc_params.atap_cmd_set2 == 0xffff)) 1937 return ENODEV; 1938 memset(&ata_c, 0, sizeof(struct ata_command)); 1939 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1940 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1941 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1942 else 1943 ata_c.r_command = WDCC_FLUSHCACHE; 1944 ata_c.r_st_bmask = WDCS_DRDY; 1945 ata_c.r_st_pmask = WDCS_DRDY; 1946 ata_c.flags = flags; 1947 ata_c.timeout = 30000; /* 30s timeout */ 1948 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1949 aprint_error_dev(wd->sc_dev, 1950 "flush cache command didn't complete\n"); 1951 return EIO; 1952 } 1953 if (ata_c.flags & AT_ERROR) { 1954 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1955 return ENODEV; 1956 } 1957 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1958 char sbuf[sizeof(at_errbits) + 64]; 1959 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1960 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1961 sbuf); 1962 return EIO; 1963 } 1964 return 0; 1965 } 1966 1967 bool 1968 wd_shutdown(device_t dev, int how) 1969 { 1970 struct wd_softc *wd = device_private(dev); 1971 1972 /* the adapter needs to be enabled */ 1973 if (wd->atabus->ata_addref(wd->drvp)) 1974 return true; /* no need to complain */ 1975 1976 wd_flushcache(wd, AT_POLL); 1977 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 1978 wd_standby(wd, AT_POLL); 1979 return true; 1980 } 1981 1982 /* 1983 * Allocate space for a ioctl queue structure. Mostly taken from 1984 * scsipi_ioctl.c 1985 */ 1986 struct wd_ioctl * 1987 wi_get(void) 1988 { 1989 struct wd_ioctl *wi; 1990 int s; 1991 1992 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1993 buf_init(&wi->wi_bp); 1994 s = splbio(); 1995 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1996 splx(s); 1997 return (wi); 1998 } 1999 2000 /* 2001 * Free an ioctl structure and remove it from our list 2002 */ 2003 2004 void 2005 wi_free(struct wd_ioctl *wi) 2006 { 2007 int s; 2008 2009 s = splbio(); 2010 LIST_REMOVE(wi, wi_list); 2011 splx(s); 2012 buf_destroy(&wi->wi_bp); 2013 free(wi, M_TEMP); 2014 } 2015 2016 /* 2017 * Find a wd_ioctl structure based on the struct buf. 2018 */ 2019 2020 struct wd_ioctl * 2021 wi_find(struct buf *bp) 2022 { 2023 struct wd_ioctl *wi; 2024 int s; 2025 2026 s = splbio(); 2027 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 2028 if (bp == &wi->wi_bp) 2029 break; 2030 splx(s); 2031 return (wi); 2032 } 2033 2034 /* 2035 * Ioctl pseudo strategy routine 2036 * 2037 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2038 * happens here is: 2039 * 2040 * - wdioctl() queues a wd_ioctl structure. 2041 * 2042 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2043 * user space I/O is required. If physio() is called, physio() eventually 2044 * calls wdioctlstrategy(). 2045 * 2046 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2047 * to perform the actual command 2048 * 2049 * The reason for the use of the pseudo strategy routine is because 2050 * when doing I/O to/from user space, physio _really_ wants to be in 2051 * the loop. We could put the entire buffer into the ioctl request 2052 * structure, but that won't scale if we want to do things like download 2053 * microcode. 2054 */ 2055 2056 void 2057 wdioctlstrategy(struct buf *bp) 2058 { 2059 struct wd_ioctl *wi; 2060 struct ata_command ata_c; 2061 int error = 0; 2062 2063 wi = wi_find(bp); 2064 if (wi == NULL) { 2065 printf("wdioctlstrategy: " 2066 "No matching ioctl request found in queue\n"); 2067 error = EINVAL; 2068 goto bad; 2069 } 2070 2071 memset(&ata_c, 0, sizeof(ata_c)); 2072 2073 /* 2074 * Abort if physio broke up the transfer 2075 */ 2076 2077 if (bp->b_bcount != wi->wi_atareq.datalen) { 2078 printf("physio split wd ioctl request... cannot proceed\n"); 2079 error = EIO; 2080 goto bad; 2081 } 2082 2083 /* 2084 * Abort if we didn't get a buffer size that was a multiple of 2085 * our sector size (or was larger than NBBY) 2086 */ 2087 2088 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2089 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2090 (1 << NBBY)) { 2091 error = EINVAL; 2092 goto bad; 2093 } 2094 2095 /* 2096 * Make sure a timeout was supplied in the ioctl request 2097 */ 2098 2099 if (wi->wi_atareq.timeout == 0) { 2100 error = EINVAL; 2101 goto bad; 2102 } 2103 2104 if (wi->wi_atareq.flags & ATACMD_READ) 2105 ata_c.flags |= AT_READ; 2106 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2107 ata_c.flags |= AT_WRITE; 2108 2109 if (wi->wi_atareq.flags & ATACMD_READREG) 2110 ata_c.flags |= AT_READREG; 2111 2112 ata_c.flags |= AT_WAIT; 2113 2114 ata_c.timeout = wi->wi_atareq.timeout; 2115 ata_c.r_command = wi->wi_atareq.command; 2116 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2117 ata_c.r_cyl = wi->wi_atareq.cylinder; 2118 ata_c.r_sector = wi->wi_atareq.sec_num; 2119 ata_c.r_count = wi->wi_atareq.sec_count; 2120 ata_c.r_features = wi->wi_atareq.features; 2121 ata_c.r_st_bmask = WDCS_DRDY; 2122 ata_c.r_st_pmask = WDCS_DRDY; 2123 ata_c.data = wi->wi_bp.b_data; 2124 ata_c.bcount = wi->wi_bp.b_bcount; 2125 2126 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2127 != ATACMD_COMPLETE) { 2128 wi->wi_atareq.retsts = ATACMD_ERROR; 2129 goto bad; 2130 } 2131 2132 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2133 if (ata_c.flags & AT_ERROR) { 2134 wi->wi_atareq.retsts = ATACMD_ERROR; 2135 wi->wi_atareq.error = ata_c.r_error; 2136 } else if (ata_c.flags & AT_DF) 2137 wi->wi_atareq.retsts = ATACMD_DF; 2138 else 2139 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2140 } else { 2141 wi->wi_atareq.retsts = ATACMD_OK; 2142 if (wi->wi_atareq.flags & ATACMD_READREG) { 2143 wi->wi_atareq.head = ata_c.r_head ; 2144 wi->wi_atareq.cylinder = ata_c.r_cyl; 2145 wi->wi_atareq.sec_num = ata_c.r_sector; 2146 wi->wi_atareq.sec_count = ata_c.r_count; 2147 wi->wi_atareq.features = ata_c.r_features; 2148 wi->wi_atareq.error = ata_c.r_error; 2149 } 2150 } 2151 2152 bp->b_error = 0; 2153 biodone(bp); 2154 return; 2155 bad: 2156 bp->b_error = error; 2157 biodone(bp); 2158 } 2159
Indexes created Mon Sep 29 18:09:42 GMT 2025