wd.c revision 1.400
1 /* $NetBSD: wd.c,v 1.400 2012/07/31 15:50:34 bouyer 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 /*- 28 * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. 29 * All rights reserved. 30 * 31 * This code is derived from software contributed to The NetBSD Foundation 32 * by Charles M. Hannum and by Onno van der Linden. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 44 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 45 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 47 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 48 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 49 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 50 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 51 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 52 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 53 * POSSIBILITY OF SUCH DAMAGE. 54 */ 55 56 #include <sys/cdefs.h> 57 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.400 2012/07/31 15:50:34 bouyer Exp $"); 58 59 #include "opt_ata.h" 60 61 #include <sys/param.h> 62 #include <sys/systm.h> 63 #include <sys/kernel.h> 64 #include <sys/conf.h> 65 #include <sys/file.h> 66 #include <sys/stat.h> 67 #include <sys/ioctl.h> 68 #include <sys/buf.h> 69 #include <sys/bufq.h> 70 #include <sys/uio.h> 71 #include <sys/malloc.h> 72 #include <sys/device.h> 73 #include <sys/disklabel.h> 74 #include <sys/disk.h> 75 #include <sys/syslog.h> 76 #include <sys/proc.h> 77 #include <sys/reboot.h> 78 #include <sys/vnode.h> 79 #include <sys/rnd.h> 80 81 #include <sys/intr.h> 82 #include <sys/bus.h> 83 84 #include <dev/ata/atareg.h> 85 #include <dev/ata/atavar.h> 86 #include <dev/ata/wdvar.h> 87 #include <dev/ic/wdcreg.h> 88 #include <sys/ataio.h> 89 #include "locators.h" 90 91 #include <prop/proplib.h> 92 93 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 94 #define WDIORETRIES 5 /* number of retries before giving up */ 95 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 96 97 #define WDUNIT(dev) DISKUNIT(dev) 98 #define WDPART(dev) DISKPART(dev) 99 #define WDMINOR(unit, part) DISKMINOR(unit, part) 100 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 101 102 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 103 104 #define DEBUG_INTR 0x01 105 #define DEBUG_XFERS 0x02 106 #define DEBUG_STATUS 0x04 107 #define DEBUG_FUNCS 0x08 108 #define DEBUG_PROBE 0x10 109 #ifdef ATADEBUG 110 int wdcdebug_wd_mask = 0x0; 111 #define ATADEBUG_PRINT(args, level) \ 112 if (wdcdebug_wd_mask & (level)) \ 113 printf args 114 #else 115 #define ATADEBUG_PRINT(args, level) 116 #endif 117 118 int wdprobe(device_t, cfdata_t, void *); 119 void wdattach(device_t, device_t, void *); 120 int wddetach(device_t, int); 121 int wdprint(void *, char *); 122 void wdperror(const struct wd_softc *); 123 124 static void wdminphys(struct buf *); 125 126 static int wdlastclose(device_t); 127 static bool wd_suspend(device_t, const pmf_qual_t *); 128 static int wd_standby(struct wd_softc *, int); 129 130 CFATTACH_DECL3_NEW(wd, sizeof(struct wd_softc), 131 wdprobe, wdattach, wddetach, NULL, NULL, NULL, DVF_DETACH_SHUTDOWN); 132 133 extern struct cfdriver wd_cd; 134 135 dev_type_open(wdopen); 136 dev_type_close(wdclose); 137 dev_type_read(wdread); 138 dev_type_write(wdwrite); 139 dev_type_ioctl(wdioctl); 140 dev_type_strategy(wdstrategy); 141 dev_type_dump(wddump); 142 dev_type_size(wdsize); 143 144 const struct bdevsw wd_bdevsw = { 145 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 146 }; 147 148 const struct cdevsw wd_cdevsw = { 149 wdopen, wdclose, wdread, wdwrite, wdioctl, 150 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 151 }; 152 153 /* 154 * Glue necessary to hook WDCIOCCOMMAND into physio 155 */ 156 157 struct wd_ioctl { 158 LIST_ENTRY(wd_ioctl) wi_list; 159 struct buf wi_bp; 160 struct uio wi_uio; 161 struct iovec wi_iov; 162 atareq_t wi_atareq; 163 struct wd_softc *wi_softc; 164 }; 165 166 LIST_HEAD(, wd_ioctl) wi_head; 167 168 struct wd_ioctl *wi_find(struct buf *); 169 void wi_free(struct wd_ioctl *); 170 struct wd_ioctl *wi_get(void); 171 void wdioctlstrategy(struct buf *); 172 173 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 174 void wdgetdisklabel(struct wd_softc *); 175 void wdstart(void *); 176 void wdstart1(struct wd_softc*, struct buf *); 177 void wdrestart(void *); 178 void wddone(void *); 179 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 180 int wd_flushcache(struct wd_softc *, int); 181 bool wd_shutdown(device_t, int); 182 183 int wd_getcache(struct wd_softc *, int *); 184 int wd_setcache(struct wd_softc *, int); 185 186 struct dkdriver wddkdriver = { wdstrategy, wdminphys }; 187 188 #ifdef HAS_BAD144_HANDLING 189 static void bad144intern(struct wd_softc *); 190 #endif 191 192 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 193 194 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 195 196 /* 197 * Quirk table for IDE drives. Put more-specific matches first, since 198 * a simple globing routine is used for matching. 199 */ 200 static const struct wd_quirk { 201 const char *wdq_match; /* inquiry pattern to match */ 202 int wdq_quirks; /* drive quirks */ 203 } wd_quirk_table[] = { 204 /* 205 * Some Seagate S-ATA drives have a PHY which can get confused 206 * with the way data is packetized by some S-ATA controllers. 207 * 208 * The work-around is to split in two any write transfer whose 209 * sector count % 15 == 1 (assuming 512 byte sectors). 210 * 211 * XXX This is an incomplete list. There are at least a couple 212 * XXX more model numbers. If you have trouble with such transfers 213 * XXX (8K is the most common) on Seagate S-ATA drives, please 214 * XXX notify thorpej (at) NetBSD.org. 215 * 216 * The ST360015AS has not yet been confirmed to have this 217 * issue, however, it is the only other drive in the 218 * Seagate Barracuda Serial ATA V family. 219 * 220 */ 221 { "ST3120023AS", 222 WD_QUIRK_SPLIT_MOD15_WRITE }, 223 { "ST380023AS", 224 WD_QUIRK_SPLIT_MOD15_WRITE }, 225 { "ST360015AS", 226 WD_QUIRK_SPLIT_MOD15_WRITE }, 227 { NULL, 228 0 } 229 }; 230 231 static const struct wd_quirk * 232 wd_lookup_quirks(const char *name) 233 { 234 const struct wd_quirk *wdq; 235 const char *estr; 236 237 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 238 /* 239 * We only want exact matches (which include matches 240 * against globbing characters). 241 */ 242 if (pmatch(name, wdq->wdq_match, &estr) == 2) 243 return (wdq); 244 } 245 return (NULL); 246 } 247 248 int 249 wdprobe(device_t parent, cfdata_t match, void *aux) 250 { 251 struct ata_device *adev = aux; 252 253 if (adev == NULL) 254 return 0; 255 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 256 return 0; 257 258 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 259 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 260 return 0; 261 return 1; 262 } 263 264 void 265 wdattach(device_t parent, device_t self, void *aux) 266 { 267 struct wd_softc *wd = device_private(self); 268 struct ata_device *adev= aux; 269 int i, blank; 270 char tbuf[41], pbuf[9], c, *p, *q; 271 const struct wd_quirk *wdq; 272 273 wd->sc_dev = self; 274 275 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 276 callout_init(&wd->sc_restart_ch, 0); 277 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 278 #ifdef WD_SOFTBADSECT 279 SLIST_INIT(&wd->sc_bslist); 280 #endif 281 wd->atabus = adev->adev_bustype; 282 wd->openings = adev->adev_openings; 283 wd->drvp = adev->adev_drv_data; 284 285 wd->drvp->drv_done = wddone; 286 wd->drvp->drv_softc = wd->sc_dev; /* done in atabusconfig_thread() 287 but too late */ 288 289 aprint_naive("\n"); 290 aprint_normal("\n"); 291 292 /* read our drive info */ 293 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 294 aprint_error_dev(self, "IDENTIFY failed\n"); 295 goto out; 296 } 297 298 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 299 i < sizeof(wd->sc_params.atap_model); i++) { 300 c = *p++; 301 if (c == '\0') 302 break; 303 if (c != ' ') { 304 if (blank) { 305 *q++ = ' '; 306 blank = 0; 307 } 308 *q++ = c; 309 } else 310 blank = 1; 311 } 312 *q++ = '\0'; 313 314 aprint_normal_dev(self, "<%s>\n", tbuf); 315 316 wdq = wd_lookup_quirks(tbuf); 317 if (wdq != NULL) 318 wd->sc_quirks = wdq->wdq_quirks; 319 320 if (wd->sc_quirks != 0) { 321 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 322 snprintb(sbuf, sizeof(sbuf), WD_QUIRK_FMT, wd->sc_quirks); 323 aprint_normal_dev(self, "quirks %s\n", sbuf); 324 } 325 326 if ((wd->sc_params.atap_multi & 0xff) > 1) { 327 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 328 } else { 329 wd->sc_multi = 1; 330 } 331 332 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 333 wd->sc_multi); 334 335 /* 48-bit LBA addressing */ 336 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 337 wd->sc_flags |= WDF_LBA48; 338 339 /* Prior to ATA-4, LBA was optional. */ 340 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 341 wd->sc_flags |= WDF_LBA; 342 #if 0 343 /* ATA-4 requires LBA. */ 344 if (wd->sc_params.atap_ataversion != 0xffff && 345 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 346 wd->sc_flags |= WDF_LBA; 347 #endif 348 349 if ((wd->sc_flags & WDF_LBA48) != 0) { 350 aprint_verbose(" LBA48 addressing\n"); 351 wd->sc_capacity = 352 ((u_int64_t) wd->sc_params.atap_max_lba[3] << 48) | 353 ((u_int64_t) wd->sc_params.atap_max_lba[2] << 32) | 354 ((u_int64_t) wd->sc_params.atap_max_lba[1] << 16) | 355 ((u_int64_t) wd->sc_params.atap_max_lba[0] << 0); 356 wd->sc_capacity28 = 357 (wd->sc_params.atap_capacity[1] << 16) | 358 wd->sc_params.atap_capacity[0]; 359 } else if ((wd->sc_flags & WDF_LBA) != 0) { 360 aprint_verbose(" LBA addressing\n"); 361 wd->sc_capacity28 = wd->sc_capacity = 362 (wd->sc_params.atap_capacity[1] << 16) | 363 wd->sc_params.atap_capacity[0]; 364 } else { 365 aprint_verbose(" chs addressing\n"); 366 wd->sc_capacity28 = wd->sc_capacity = 367 wd->sc_params.atap_cylinders * 368 wd->sc_params.atap_heads * 369 wd->sc_params.atap_sectors; 370 } 371 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 372 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 373 "%d bytes/sect x %llu sectors\n", 374 pbuf, 375 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 376 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 377 wd->sc_params.atap_cylinders, 378 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 379 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 380 381 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 382 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 383 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 384 out: 385 /* 386 * Initialize and attach the disk structure. 387 */ 388 /* we fill in dk_info later */ 389 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 390 disk_attach(&wd->sc_dk); 391 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 392 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 393 RND_TYPE_DISK, 0); 394 395 /* Discover wedges on this disk. */ 396 dkwedge_discover(&wd->sc_dk); 397 398 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 399 aprint_error_dev(self, "couldn't establish power handler\n"); 400 } 401 402 static bool 403 wd_suspend(device_t dv, const pmf_qual_t *qual) 404 { 405 struct wd_softc *sc = device_private(dv); 406 407 wd_flushcache(sc, AT_WAIT); 408 wd_standby(sc, AT_WAIT); 409 return true; 410 } 411 412 int 413 wddetach(device_t self, int flags) 414 { 415 struct wd_softc *sc = device_private(self); 416 int bmaj, cmaj, i, mn, rc, s; 417 418 if ((rc = disk_begindetach(&sc->sc_dk, wdlastclose, self, flags)) != 0) 419 return rc; 420 421 /* locate the major number */ 422 bmaj = bdevsw_lookup_major(&wd_bdevsw); 423 cmaj = cdevsw_lookup_major(&wd_cdevsw); 424 425 /* Nuke the vnodes for any open instances. */ 426 for (i = 0; i < MAXPARTITIONS; i++) { 427 mn = WDMINOR(device_unit(self), i); 428 vdevgone(bmaj, mn, mn, VBLK); 429 vdevgone(cmaj, mn, mn, VCHR); 430 } 431 432 /* Delete all of our wedges. */ 433 dkwedge_delall(&sc->sc_dk); 434 435 s = splbio(); 436 437 /* Kill off any queued buffers. */ 438 bufq_drain(sc->sc_q); 439 440 bufq_free(sc->sc_q); 441 sc->atabus->ata_killpending(sc->drvp); 442 443 splx(s); 444 445 /* Detach disk. */ 446 disk_detach(&sc->sc_dk); 447 disk_destroy(&sc->sc_dk); 448 449 #ifdef WD_SOFTBADSECT 450 /* Clean out the bad sector list */ 451 while (!SLIST_EMPTY(&sc->sc_bslist)) { 452 void *head = SLIST_FIRST(&sc->sc_bslist); 453 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 454 free(head, M_TEMP); 455 } 456 sc->sc_bscount = 0; 457 #endif 458 459 pmf_device_deregister(self); 460 461 /* Unhook the entropy source. */ 462 rnd_detach_source(&sc->rnd_source); 463 464 callout_destroy(&sc->sc_restart_ch); 465 466 sc->drvp->drive_type = ATA_DRIVET_NONE; /* no drive any more here */ 467 sc->drvp->drive_flags = 0; 468 469 return (0); 470 } 471 472 /* 473 * Read/write routine for a buffer. Validates the arguments and schedules the 474 * transfer. Does not wait for the transfer to complete. 475 */ 476 void 477 wdstrategy(struct buf *bp) 478 { 479 struct wd_softc *wd = 480 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 481 struct disklabel *lp = wd->sc_dk.dk_label; 482 daddr_t blkno; 483 int s; 484 485 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 486 DEBUG_XFERS); 487 488 /* Valid request? */ 489 if (bp->b_blkno < 0 || 490 (bp->b_bcount % lp->d_secsize) != 0 || 491 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 492 bp->b_error = EINVAL; 493 goto done; 494 } 495 496 /* If device invalidated (e.g. media change, door open, 497 * device detachment), then error. 498 */ 499 if ((wd->sc_flags & WDF_LOADED) == 0 || 500 !device_is_enabled(wd->sc_dev)) { 501 bp->b_error = EIO; 502 goto done; 503 } 504 505 /* If it's a null transfer, return immediately. */ 506 if (bp->b_bcount == 0) 507 goto done; 508 509 /* 510 * Do bounds checking, adjust transfer. if error, process. 511 * If end of partition, just return. 512 */ 513 if (WDPART(bp->b_dev) == RAW_PART) { 514 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 515 wd->sc_capacity) <= 0) 516 goto done; 517 } else { 518 if (bounds_check_with_label(&wd->sc_dk, bp, 519 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 520 goto done; 521 } 522 523 /* 524 * Now convert the block number to absolute and put it in 525 * terms of the device's logical block size. 526 */ 527 if (lp->d_secsize >= DEV_BSIZE) 528 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 529 else 530 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 531 532 if (WDPART(bp->b_dev) != RAW_PART) 533 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 534 535 bp->b_rawblkno = blkno; 536 537 #ifdef WD_SOFTBADSECT 538 /* 539 * If the transfer about to be attempted contains only a block that 540 * is known to be bad then return an error for the transfer without 541 * even attempting to start a transfer up under the premis that we 542 * will just end up doing more retries for a transfer that will end 543 * up failing again. 544 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 545 */ 546 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 547 struct disk_badsectors *dbs; 548 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 549 550 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 551 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 552 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 553 bp->b_error = EIO; 554 goto done; 555 } 556 } 557 #endif 558 559 /* Queue transfer on drive, activate drive and controller if idle. */ 560 s = splbio(); 561 bufq_put(wd->sc_q, bp); 562 wdstart(wd); 563 splx(s); 564 return; 565 done: 566 /* Toss transfer; we're done early. */ 567 bp->b_resid = bp->b_bcount; 568 biodone(bp); 569 } 570 571 /* 572 * Queue a drive for I/O. 573 */ 574 void 575 wdstart(void *arg) 576 { 577 struct wd_softc *wd = arg; 578 struct buf *bp = NULL; 579 580 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 581 DEBUG_XFERS); 582 583 if (!device_is_active(wd->sc_dev)) 584 return; 585 586 while (wd->openings > 0) { 587 588 /* Is there a buf for us ? */ 589 if ((bp = bufq_get(wd->sc_q)) == NULL) 590 return; 591 592 /* 593 * Make the command. First lock the device 594 */ 595 wd->openings--; 596 597 wd->retries = 0; 598 wdstart1(wd, bp); 599 } 600 } 601 602 static void 603 wd_split_mod15_write(struct buf *bp) 604 { 605 struct buf *obp = bp->b_private; 606 struct wd_softc *sc = 607 device_lookup_private(&wd_cd, DISKUNIT(obp->b_dev)); 608 int s; 609 610 if (__predict_false(bp->b_error != 0)) { 611 /* 612 * Propagate the error. If this was the first half of 613 * the original transfer, make sure to account for that 614 * in the residual. 615 */ 616 if (bp->b_data == obp->b_data) 617 bp->b_resid += bp->b_bcount; 618 goto done; 619 } 620 621 /* 622 * If this was the second half of the transfer, we're all done! 623 */ 624 if (bp->b_data != obp->b_data) 625 goto done; 626 627 /* 628 * Advance the pointer to the second half and issue that command 629 * using the same opening. 630 */ 631 bp->b_flags = obp->b_flags; 632 bp->b_oflags = obp->b_oflags; 633 bp->b_cflags = obp->b_cflags; 634 bp->b_data = (char *)bp->b_data + bp->b_bcount; 635 bp->b_blkno += (bp->b_bcount / 512); 636 bp->b_rawblkno += (bp->b_bcount / 512); 637 s = splbio(); 638 wdstart1(sc, bp); 639 splx(s); 640 return; 641 642 done: 643 obp->b_error = bp->b_error; 644 obp->b_resid = bp->b_resid; 645 s = splbio(); 646 putiobuf(bp); 647 biodone(obp); 648 sc->openings++; 649 splx(s); 650 /* wddone() will call wdstart() */ 651 } 652 653 void 654 wdstart1(struct wd_softc *wd, struct buf *bp) 655 { 656 657 /* 658 * Deal with the "split mod15 write" quirk. We just divide the 659 * transfer in two, doing the first half and then then second half 660 * with the same command opening. 661 * 662 * Note we MUST do this here, because we can't let insertion 663 * into the bufq cause the transfers to be re-merged. 664 */ 665 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 666 (bp->b_flags & B_READ) == 0 && 667 bp->b_bcount > 512 && 668 ((bp->b_bcount / 512) % 15) == 1)) { 669 struct buf *nbp; 670 671 /* already at splbio */ 672 nbp = getiobuf(NULL, false); 673 if (__predict_false(nbp == NULL)) { 674 /* No memory -- fail the iop. */ 675 bp->b_error = ENOMEM; 676 bp->b_resid = bp->b_bcount; 677 biodone(bp); 678 wd->openings++; 679 return; 680 } 681 682 nbp->b_error = 0; 683 nbp->b_proc = bp->b_proc; 684 nbp->b_dev = bp->b_dev; 685 686 nbp->b_bcount = bp->b_bcount / 2; 687 nbp->b_bufsize = bp->b_bcount / 2; 688 nbp->b_data = bp->b_data; 689 690 nbp->b_blkno = bp->b_blkno; 691 nbp->b_rawblkno = bp->b_rawblkno; 692 693 nbp->b_flags = bp->b_flags; 694 nbp->b_oflags = bp->b_oflags; 695 nbp->b_cflags = bp->b_cflags; 696 nbp->b_iodone = wd_split_mod15_write; 697 698 /* Put ptr to orig buf in b_private and use new buf */ 699 nbp->b_private = bp; 700 701 BIO_COPYPRIO(nbp, bp); 702 703 bp = nbp; 704 } 705 706 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 707 wd->sc_wdc_bio.bcount = bp->b_bcount; 708 wd->sc_wdc_bio.databuf = bp->b_data; 709 wd->sc_wdc_bio.blkdone =0; 710 KASSERT(bp == wd->sc_bp || wd->sc_bp == NULL); 711 wd->sc_bp = bp; 712 /* 713 * If we're retrying, retry in single-sector mode. This will give us 714 * the sector number of the problem, and will eventually allow the 715 * transfer to succeed. 716 */ 717 if (wd->retries >= WDIORETRIES_SINGLE) 718 wd->sc_wdc_bio.flags = ATA_SINGLE; 719 else 720 wd->sc_wdc_bio.flags = 0; 721 if (wd->sc_flags & WDF_LBA48 && 722 (wd->sc_wdc_bio.blkno + 723 wd->sc_wdc_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 724 wd->sc_capacity28) 725 wd->sc_wdc_bio.flags |= ATA_LBA48; 726 if (wd->sc_flags & WDF_LBA) 727 wd->sc_wdc_bio.flags |= ATA_LBA; 728 if (bp->b_flags & B_READ) 729 wd->sc_wdc_bio.flags |= ATA_READ; 730 /* Instrumentation. */ 731 disk_busy(&wd->sc_dk); 732 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 733 case ATACMD_TRY_AGAIN: 734 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 735 break; 736 case ATACMD_QUEUED: 737 case ATACMD_COMPLETE: 738 break; 739 default: 740 panic("wdstart1: bad return code from ata_bio()"); 741 } 742 } 743 744 void 745 wddone(void *v) 746 { 747 struct wd_softc *wd = device_private(v); 748 struct buf *bp = wd->sc_bp; 749 const char *errmsg; 750 int do_perror = 0; 751 752 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 753 DEBUG_XFERS); 754 if (bp == NULL) 755 return; 756 bp->b_resid = wd->sc_wdc_bio.bcount; 757 switch (wd->sc_wdc_bio.error) { 758 case ERR_DMA: 759 errmsg = "DMA error"; 760 goto retry; 761 case ERR_DF: 762 errmsg = "device fault"; 763 goto retry; 764 case TIMEOUT: 765 errmsg = "device timeout"; 766 goto retry; 767 case ERR_RESET: 768 errmsg = "channel reset"; 769 goto retry2; 770 case ERROR: 771 /* Don't care about media change bits */ 772 if (wd->sc_wdc_bio.r_error != 0 && 773 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 774 goto noerror; 775 errmsg = "error"; 776 do_perror = 1; 777 retry: /* Just reset and retry. Can we do more ? */ 778 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD, NULL); 779 retry2: 780 diskerr(bp, "wd", errmsg, LOG_PRINTF, 781 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 782 if (wd->retries < WDIORETRIES) 783 printf(", retrying"); 784 printf("\n"); 785 if (do_perror) 786 wdperror(wd); 787 if (wd->retries < WDIORETRIES) { 788 wd->retries++; 789 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 790 wdrestart, wd); 791 return; 792 } 793 794 #ifdef WD_SOFTBADSECT 795 /* 796 * Not all errors indicate a failed block but those that do, 797 * put the block on the bad-block list for the device. Only 798 * do this for reads because the drive should do it for writes, 799 * itself, according to Manuel. 800 */ 801 if ((bp->b_flags & B_READ) && 802 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 803 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 804 struct disk_badsectors *dbs; 805 806 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 807 dbs->dbs_min = bp->b_rawblkno; 808 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 809 microtime(&dbs->dbs_failedat); 810 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 811 wd->sc_bscount++; 812 } 813 #endif 814 bp->b_error = EIO; 815 break; 816 case NOERROR: 817 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 818 aprint_error_dev(wd->sc_dev, 819 "soft error (corrected)\n"); 820 break; 821 case ERR_NODEV: 822 bp->b_error = EIO; 823 break; 824 } 825 if (__predict_false(bp->b_error != 0) && bp->b_resid == 0) { 826 /* 827 * the disk or controller sometimes report a complete 828 * xfer, when there has been an error. This is wrong, 829 * assume nothing got transfered in this case 830 */ 831 bp->b_resid = bp->b_bcount; 832 } 833 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 834 (bp->b_flags & B_READ)); 835 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 836 /* XXX Yuck, but we don't want to increment openings in this case */ 837 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 838 biodone(bp); 839 else { 840 biodone(bp); 841 wd->openings++; 842 } 843 KASSERT(wd->sc_bp != NULL); 844 wd->sc_bp = NULL; 845 wdstart(wd); 846 } 847 848 void 849 wdrestart(void *v) 850 { 851 struct wd_softc *wd = v; 852 struct buf *bp = wd->sc_bp; 853 int s; 854 855 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 856 DEBUG_XFERS); 857 s = splbio(); 858 wdstart1(v, bp); 859 splx(s); 860 } 861 862 static void 863 wdminphys(struct buf *bp) 864 { 865 866 if (bp->b_bcount > (512 * 128)) { 867 bp->b_bcount = (512 * 128); 868 } 869 minphys(bp); 870 } 871 872 int 873 wdread(dev_t dev, struct uio *uio, int flags) 874 { 875 876 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 877 return (physio(wdstrategy, NULL, dev, B_READ, wdminphys, uio)); 878 } 879 880 int 881 wdwrite(dev_t dev, struct uio *uio, int flags) 882 { 883 884 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 885 return (physio(wdstrategy, NULL, dev, B_WRITE, wdminphys, uio)); 886 } 887 888 int 889 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 890 { 891 struct wd_softc *wd; 892 int part, error; 893 894 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 895 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 896 if (wd == NULL) 897 return (ENXIO); 898 899 if (! device_is_active(wd->sc_dev)) 900 return (ENODEV); 901 902 if (wd->sc_capacity == 0) 903 return (ENODEV); 904 905 part = WDPART(dev); 906 907 mutex_enter(&wd->sc_dk.dk_openlock); 908 909 /* 910 * If there are wedges, and this is not RAW_PART, then we 911 * need to fail. 912 */ 913 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 914 error = EBUSY; 915 goto bad1; 916 } 917 918 /* 919 * If this is the first open of this device, add a reference 920 * to the adapter. 921 */ 922 if (wd->sc_dk.dk_openmask == 0 && 923 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 924 goto bad1; 925 926 if (wd->sc_dk.dk_openmask != 0) { 927 /* 928 * If any partition is open, but the disk has been invalidated, 929 * disallow further opens. 930 */ 931 if ((wd->sc_flags & WDF_LOADED) == 0) { 932 error = EIO; 933 goto bad2; 934 } 935 } else { 936 if ((wd->sc_flags & WDF_LOADED) == 0) { 937 938 /* Load the physical device parameters. */ 939 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 940 aprint_error_dev(wd->sc_dev, 941 "IDENTIFY failed\n"); 942 error = EIO; 943 goto bad2; 944 } 945 wd->sc_flags |= WDF_LOADED; 946 /* Load the partition info if not already loaded. */ 947 wdgetdisklabel(wd); 948 } 949 } 950 951 /* Check that the partition exists. */ 952 if (part != RAW_PART && 953 (part >= wd->sc_dk.dk_label->d_npartitions || 954 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 955 error = ENXIO; 956 goto bad2; 957 } 958 959 /* Insure only one open at a time. */ 960 switch (fmt) { 961 case S_IFCHR: 962 wd->sc_dk.dk_copenmask |= (1 << part); 963 break; 964 case S_IFBLK: 965 wd->sc_dk.dk_bopenmask |= (1 << part); 966 break; 967 } 968 wd->sc_dk.dk_openmask = 969 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 970 971 mutex_exit(&wd->sc_dk.dk_openlock); 972 return 0; 973 974 bad2: 975 if (wd->sc_dk.dk_openmask == 0) 976 wd->atabus->ata_delref(wd->drvp); 977 bad1: 978 mutex_exit(&wd->sc_dk.dk_openlock); 979 return error; 980 } 981 982 /* 983 * Caller must hold wd->sc_dk.dk_openlock. 984 */ 985 static int 986 wdlastclose(device_t self) 987 { 988 struct wd_softc *wd = device_private(self); 989 990 wd_flushcache(wd, AT_WAIT); 991 992 if (! (wd->sc_flags & WDF_KLABEL)) 993 wd->sc_flags &= ~WDF_LOADED; 994 995 wd->atabus->ata_delref(wd->drvp); 996 997 return 0; 998 } 999 1000 int 1001 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1002 { 1003 struct wd_softc *wd = 1004 device_lookup_private(&wd_cd, WDUNIT(dev)); 1005 int part = WDPART(dev); 1006 1007 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1008 1009 mutex_enter(&wd->sc_dk.dk_openlock); 1010 1011 switch (fmt) { 1012 case S_IFCHR: 1013 wd->sc_dk.dk_copenmask &= ~(1 << part); 1014 break; 1015 case S_IFBLK: 1016 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1017 break; 1018 } 1019 wd->sc_dk.dk_openmask = 1020 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1021 1022 if (wd->sc_dk.dk_openmask == 0) 1023 wdlastclose(wd->sc_dev); 1024 1025 mutex_exit(&wd->sc_dk.dk_openlock); 1026 return 0; 1027 } 1028 1029 void 1030 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1031 { 1032 1033 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1034 memset(lp, 0, sizeof(struct disklabel)); 1035 1036 lp->d_secsize = DEV_BSIZE; 1037 lp->d_ntracks = wd->sc_params.atap_heads; 1038 lp->d_nsectors = wd->sc_params.atap_sectors; 1039 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1040 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1041 wd->sc_params.atap_cylinders; 1042 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1043 1044 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1045 lp->d_type = DTYPE_ST506; 1046 else 1047 lp->d_type = DTYPE_ESDI; 1048 1049 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1050 strncpy(lp->d_packname, "fictitious", 16); 1051 if (wd->sc_capacity > UINT32_MAX) 1052 lp->d_secperunit = UINT32_MAX; 1053 else 1054 lp->d_secperunit = wd->sc_capacity; 1055 lp->d_rpm = 3600; 1056 lp->d_interleave = 1; 1057 lp->d_flags = 0; 1058 1059 lp->d_partitions[RAW_PART].p_offset = 0; 1060 lp->d_partitions[RAW_PART].p_size = 1061 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1062 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1063 lp->d_npartitions = RAW_PART + 1; 1064 1065 lp->d_magic = DISKMAGIC; 1066 lp->d_magic2 = DISKMAGIC; 1067 lp->d_checksum = dkcksum(lp); 1068 } 1069 1070 /* 1071 * Fabricate a default disk label, and try to read the correct one. 1072 */ 1073 void 1074 wdgetdisklabel(struct wd_softc *wd) 1075 { 1076 struct disklabel *lp = wd->sc_dk.dk_label; 1077 const char *errstring; 1078 int s; 1079 1080 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1081 1082 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1083 1084 wdgetdefaultlabel(wd, lp); 1085 1086 wd->sc_badsect[0] = -1; 1087 1088 if (wd->drvp->state > RESET) { 1089 s = splbio(); 1090 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1091 splx(s); 1092 } 1093 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1094 RAW_PART), wdstrategy, lp, 1095 wd->sc_dk.dk_cpulabel); 1096 if (errstring) { 1097 /* 1098 * This probably happened because the drive's default 1099 * geometry doesn't match the DOS geometry. We 1100 * assume the DOS geometry is now in the label and try 1101 * again. XXX This is a kluge. 1102 */ 1103 if (wd->drvp->state > RESET) { 1104 s = splbio(); 1105 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1106 splx(s); 1107 } 1108 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1109 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1110 } 1111 if (errstring) { 1112 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1113 return; 1114 } 1115 1116 if (wd->drvp->state > RESET) { 1117 s = splbio(); 1118 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1119 splx(s); 1120 } 1121 #ifdef HAS_BAD144_HANDLING 1122 if ((lp->d_flags & D_BADSECT) != 0) 1123 bad144intern(wd); 1124 #endif 1125 } 1126 1127 void 1128 wdperror(const struct wd_softc *wd) 1129 { 1130 static const char *const errstr0_3[] = {"address mark not found", 1131 "track 0 not found", "aborted command", "media change requested", 1132 "id not found", "media changed", "uncorrectable data error", 1133 "bad block detected"}; 1134 static const char *const errstr4_5[] = { 1135 "obsolete (address mark not found)", 1136 "no media/write protected", "aborted command", 1137 "media change requested", "id not found", "media changed", 1138 "uncorrectable data error", "interface CRC error"}; 1139 const char *const *errstr; 1140 int i; 1141 const char *sep = ""; 1142 1143 const char *devname = device_xname(wd->sc_dev); 1144 struct ata_drive_datas *drvp = wd->drvp; 1145 int errno = wd->sc_wdc_bio.r_error; 1146 1147 if (drvp->ata_vers >= 4) 1148 errstr = errstr4_5; 1149 else 1150 errstr = errstr0_3; 1151 1152 printf("%s: (", devname); 1153 1154 if (errno == 0) 1155 printf("error not notified"); 1156 1157 for (i = 0; i < 8; i++) { 1158 if (errno & (1 << i)) { 1159 printf("%s%s", sep, errstr[i]); 1160 sep = ", "; 1161 } 1162 } 1163 printf(")\n"); 1164 } 1165 1166 int 1167 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1168 { 1169 struct wd_softc *wd = 1170 device_lookup_private(&wd_cd, WDUNIT(dev)); 1171 int error = 0, s; 1172 #ifdef __HAVE_OLD_DISKLABEL 1173 struct disklabel *newlabel = NULL; 1174 #endif 1175 1176 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1177 1178 if ((wd->sc_flags & WDF_LOADED) == 0) 1179 return EIO; 1180 1181 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1182 if (error != EPASSTHROUGH) 1183 return (error); 1184 1185 switch (xfer) { 1186 #ifdef HAS_BAD144_HANDLING 1187 case DIOCSBAD: 1188 if ((flag & FWRITE) == 0) 1189 return EBADF; 1190 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1191 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1192 bad144intern(wd); 1193 return 0; 1194 #endif 1195 #ifdef WD_SOFTBADSECT 1196 case DIOCBSLIST : 1197 { 1198 u_int32_t count, missing, skip; 1199 struct disk_badsecinfo dbsi; 1200 struct disk_badsectors *dbs; 1201 size_t available; 1202 uint8_t *laddr; 1203 1204 dbsi = *(struct disk_badsecinfo *)addr; 1205 missing = wd->sc_bscount; 1206 count = 0; 1207 available = dbsi.dbsi_bufsize; 1208 skip = dbsi.dbsi_skip; 1209 laddr = (uint8_t *)dbsi.dbsi_buffer; 1210 1211 /* 1212 * We start this loop with the expectation that all of the 1213 * entries will be missed and decrement this counter each 1214 * time we either skip over one (already copied out) or 1215 * we actually copy it back to user space. The structs 1216 * holding the bad sector information are copied directly 1217 * back to user space whilst the summary is returned via 1218 * the struct passed in via the ioctl. 1219 */ 1220 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1221 if (skip > 0) { 1222 missing--; 1223 skip--; 1224 continue; 1225 } 1226 if (available < sizeof(*dbs)) 1227 break; 1228 available -= sizeof(*dbs); 1229 copyout(dbs, laddr, sizeof(*dbs)); 1230 laddr += sizeof(*dbs); 1231 missing--; 1232 count++; 1233 } 1234 dbsi.dbsi_left = missing; 1235 dbsi.dbsi_copied = count; 1236 *(struct disk_badsecinfo *)addr = dbsi; 1237 return 0; 1238 } 1239 1240 case DIOCBSFLUSH : 1241 /* Clean out the bad sector list */ 1242 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1243 void *head = SLIST_FIRST(&wd->sc_bslist); 1244 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1245 free(head, M_TEMP); 1246 } 1247 wd->sc_bscount = 0; 1248 return 0; 1249 #endif 1250 case DIOCGDINFO: 1251 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1252 return 0; 1253 #ifdef __HAVE_OLD_DISKLABEL 1254 case ODIOCGDINFO: 1255 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1256 if (newlabel == NULL) 1257 return EIO; 1258 *newlabel = *(wd->sc_dk.dk_label); 1259 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1260 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1261 else 1262 error = ENOTTY; 1263 free(newlabel, M_TEMP); 1264 return error; 1265 #endif 1266 1267 case DIOCGPART: 1268 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1269 ((struct partinfo *)addr)->part = 1270 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1271 return 0; 1272 1273 case DIOCWDINFO: 1274 case DIOCSDINFO: 1275 #ifdef __HAVE_OLD_DISKLABEL 1276 case ODIOCWDINFO: 1277 case ODIOCSDINFO: 1278 #endif 1279 { 1280 struct disklabel *lp; 1281 1282 if ((flag & FWRITE) == 0) 1283 return EBADF; 1284 1285 #ifdef __HAVE_OLD_DISKLABEL 1286 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1287 newlabel = malloc(sizeof *newlabel, M_TEMP, 1288 M_WAITOK | M_ZERO); 1289 if (newlabel == NULL) 1290 return EIO; 1291 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1292 lp = newlabel; 1293 } else 1294 #endif 1295 lp = (struct disklabel *)addr; 1296 1297 mutex_enter(&wd->sc_dk.dk_openlock); 1298 wd->sc_flags |= WDF_LABELLING; 1299 1300 error = setdisklabel(wd->sc_dk.dk_label, 1301 lp, /*wd->sc_dk.dk_openmask : */0, 1302 wd->sc_dk.dk_cpulabel); 1303 if (error == 0) { 1304 if (wd->drvp->state > RESET) { 1305 s = splbio(); 1306 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1307 splx(s); 1308 } 1309 if (xfer == DIOCWDINFO 1310 #ifdef __HAVE_OLD_DISKLABEL 1311 || xfer == ODIOCWDINFO 1312 #endif 1313 ) 1314 error = writedisklabel(WDLABELDEV(dev), 1315 wdstrategy, wd->sc_dk.dk_label, 1316 wd->sc_dk.dk_cpulabel); 1317 } 1318 1319 wd->sc_flags &= ~WDF_LABELLING; 1320 mutex_exit(&wd->sc_dk.dk_openlock); 1321 #ifdef __HAVE_OLD_DISKLABEL 1322 if (newlabel != NULL) 1323 free(newlabel, M_TEMP); 1324 #endif 1325 return error; 1326 } 1327 1328 case DIOCKLABEL: 1329 if (*(int *)addr) 1330 wd->sc_flags |= WDF_KLABEL; 1331 else 1332 wd->sc_flags &= ~WDF_KLABEL; 1333 return 0; 1334 1335 case DIOCWLABEL: 1336 if ((flag & FWRITE) == 0) 1337 return EBADF; 1338 if (*(int *)addr) 1339 wd->sc_flags |= WDF_WLABEL; 1340 else 1341 wd->sc_flags &= ~WDF_WLABEL; 1342 return 0; 1343 1344 case DIOCGDEFLABEL: 1345 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1346 return 0; 1347 #ifdef __HAVE_OLD_DISKLABEL 1348 case ODIOCGDEFLABEL: 1349 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1350 if (newlabel == NULL) 1351 return EIO; 1352 wdgetdefaultlabel(wd, newlabel); 1353 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1354 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1355 else 1356 error = ENOTTY; 1357 free(newlabel, M_TEMP); 1358 return error; 1359 #endif 1360 1361 #ifdef notyet 1362 case DIOCWFORMAT: 1363 if ((flag & FWRITE) == 0) 1364 return EBADF; 1365 { 1366 register struct format_op *fop; 1367 struct iovec aiov; 1368 struct uio auio; 1369 1370 fop = (struct format_op *)addr; 1371 aiov.iov_base = fop->df_buf; 1372 aiov.iov_len = fop->df_count; 1373 auio.uio_iov = &aiov; 1374 auio.uio_iovcnt = 1; 1375 auio.uio_resid = fop->df_count; 1376 auio.uio_offset = 1377 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1378 auio.uio_vmspace = l->l_proc->p_vmspace; 1379 error = physio(wdformat, NULL, dev, B_WRITE, wdminphys, 1380 &auio); 1381 fop->df_count -= auio.uio_resid; 1382 fop->df_reg[0] = wdc->sc_status; 1383 fop->df_reg[1] = wdc->sc_error; 1384 return error; 1385 } 1386 #endif 1387 case DIOCGCACHE: 1388 return wd_getcache(wd, (int *)addr); 1389 1390 case DIOCSCACHE: 1391 return wd_setcache(wd, *(int *)addr); 1392 1393 case DIOCCACHESYNC: 1394 return wd_flushcache(wd, AT_WAIT); 1395 1396 case ATAIOCCOMMAND: 1397 /* 1398 * Make sure this command is (relatively) safe first 1399 */ 1400 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1401 (flag & FWRITE) == 0) 1402 return (EBADF); 1403 { 1404 struct wd_ioctl *wi; 1405 atareq_t *atareq = (atareq_t *) addr; 1406 int error1; 1407 1408 wi = wi_get(); 1409 wi->wi_softc = wd; 1410 wi->wi_atareq = *atareq; 1411 1412 if (atareq->datalen && atareq->flags & 1413 (ATACMD_READ | ATACMD_WRITE)) { 1414 void *tbuf; 1415 if (atareq->datalen < DEV_BSIZE 1416 && atareq->command == WDCC_IDENTIFY) { 1417 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1418 wi->wi_iov.iov_base = tbuf; 1419 wi->wi_iov.iov_len = DEV_BSIZE; 1420 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1421 } else { 1422 tbuf = NULL; 1423 wi->wi_iov.iov_base = atareq->databuf; 1424 wi->wi_iov.iov_len = atareq->datalen; 1425 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1426 } 1427 wi->wi_uio.uio_iov = &wi->wi_iov; 1428 wi->wi_uio.uio_iovcnt = 1; 1429 wi->wi_uio.uio_resid = atareq->datalen; 1430 wi->wi_uio.uio_offset = 0; 1431 wi->wi_uio.uio_rw = 1432 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1433 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1434 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1435 wdminphys, &wi->wi_uio); 1436 if (tbuf != NULL && error1 == 0) { 1437 error1 = copyout(tbuf, atareq->databuf, 1438 atareq->datalen); 1439 free(tbuf, M_TEMP); 1440 } 1441 } else { 1442 /* No need to call physio if we don't have any 1443 user data */ 1444 wi->wi_bp.b_flags = 0; 1445 wi->wi_bp.b_data = 0; 1446 wi->wi_bp.b_bcount = 0; 1447 wi->wi_bp.b_dev = 0; 1448 wi->wi_bp.b_proc = l->l_proc; 1449 wdioctlstrategy(&wi->wi_bp); 1450 error1 = wi->wi_bp.b_error; 1451 } 1452 *atareq = wi->wi_atareq; 1453 wi_free(wi); 1454 return(error1); 1455 } 1456 1457 case DIOCAWEDGE: 1458 { 1459 struct dkwedge_info *dkw = (void *) addr; 1460 1461 if ((flag & FWRITE) == 0) 1462 return (EBADF); 1463 1464 /* If the ioctl happens here, the parent is us. */ 1465 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1466 return (dkwedge_add(dkw)); 1467 } 1468 1469 case DIOCDWEDGE: 1470 { 1471 struct dkwedge_info *dkw = (void *) addr; 1472 1473 if ((flag & FWRITE) == 0) 1474 return (EBADF); 1475 1476 /* If the ioctl happens here, the parent is us. */ 1477 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1478 return (dkwedge_del(dkw)); 1479 } 1480 1481 case DIOCLWEDGES: 1482 { 1483 struct dkwedge_list *dkwl = (void *) addr; 1484 1485 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1486 } 1487 1488 case DIOCGSTRATEGY: 1489 { 1490 struct disk_strategy *dks = (void *)addr; 1491 1492 s = splbio(); 1493 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1494 sizeof(dks->dks_name)); 1495 splx(s); 1496 dks->dks_paramlen = 0; 1497 1498 return 0; 1499 } 1500 1501 case DIOCSSTRATEGY: 1502 { 1503 struct disk_strategy *dks = (void *)addr; 1504 struct bufq_state *new; 1505 struct bufq_state *old; 1506 1507 if ((flag & FWRITE) == 0) { 1508 return EBADF; 1509 } 1510 if (dks->dks_param != NULL) { 1511 return EINVAL; 1512 } 1513 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1514 error = bufq_alloc(&new, dks->dks_name, 1515 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1516 if (error) { 1517 return error; 1518 } 1519 s = splbio(); 1520 old = wd->sc_q; 1521 bufq_move(new, old); 1522 wd->sc_q = new; 1523 splx(s); 1524 bufq_free(old); 1525 1526 return 0; 1527 } 1528 1529 default: 1530 return ENOTTY; 1531 } 1532 1533 #ifdef DIAGNOSTIC 1534 panic("wdioctl: impossible"); 1535 #endif 1536 } 1537 1538 #ifdef B_FORMAT 1539 int 1540 wdformat(struct buf *bp) 1541 { 1542 1543 bp->b_flags |= B_FORMAT; 1544 return wdstrategy(bp); 1545 } 1546 #endif 1547 1548 int 1549 wdsize(dev_t dev) 1550 { 1551 struct wd_softc *wd; 1552 int part, omask; 1553 int size; 1554 1555 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1556 1557 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1558 if (wd == NULL) 1559 return (-1); 1560 1561 part = WDPART(dev); 1562 omask = wd->sc_dk.dk_openmask & (1 << part); 1563 1564 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1565 return (-1); 1566 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1567 size = -1; 1568 else 1569 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1570 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1571 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1572 return (-1); 1573 return (size); 1574 } 1575 1576 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1577 static int wddoingadump = 0; 1578 static int wddumprecalibrated = 0; 1579 1580 /* 1581 * Dump core after a system crash. 1582 */ 1583 int 1584 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1585 { 1586 struct wd_softc *wd; /* disk unit to do the I/O */ 1587 struct disklabel *lp; /* disk's disklabel */ 1588 int part, err; 1589 int nblks; /* total number of sectors left to write */ 1590 1591 /* Check if recursive dump; if so, punt. */ 1592 if (wddoingadump) 1593 return EFAULT; 1594 wddoingadump = 1; 1595 1596 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1597 if (wd == NULL) 1598 return (ENXIO); 1599 1600 part = WDPART(dev); 1601 1602 /* Convert to disk sectors. Request must be a multiple of size. */ 1603 lp = wd->sc_dk.dk_label; 1604 if ((size % lp->d_secsize) != 0) 1605 return EFAULT; 1606 nblks = size / lp->d_secsize; 1607 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1608 1609 /* Check transfer bounds against partition size. */ 1610 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1611 return EINVAL; 1612 1613 /* Offset block number to start of partition. */ 1614 blkno += lp->d_partitions[part].p_offset; 1615 1616 /* Recalibrate, if first dump transfer. */ 1617 if (wddumprecalibrated == 0) { 1618 wddumprecalibrated = 1; 1619 (*wd->atabus->ata_reset_drive)(wd->drvp, 1620 AT_POLL | AT_RST_EMERG, NULL); 1621 wd->drvp->state = RESET; 1622 } 1623 1624 wd->sc_bp = NULL; 1625 wd->sc_wdc_bio.blkno = blkno; 1626 wd->sc_wdc_bio.flags = ATA_POLL; 1627 if (wd->sc_flags & WDF_LBA48 && 1628 (wd->sc_wdc_bio.blkno + nblks) > wd->sc_capacity28) 1629 wd->sc_wdc_bio.flags |= ATA_LBA48; 1630 if (wd->sc_flags & WDF_LBA) 1631 wd->sc_wdc_bio.flags |= ATA_LBA; 1632 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1633 wd->sc_wdc_bio.databuf = va; 1634 #ifndef WD_DUMP_NOT_TRUSTED 1635 switch (err = wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1636 case ATACMD_TRY_AGAIN: 1637 panic("wddump: try again"); 1638 break; 1639 case ATACMD_QUEUED: 1640 panic("wddump: polled command has been queued"); 1641 break; 1642 case ATACMD_COMPLETE: 1643 break; 1644 default: 1645 panic("wddump: unknown atacmd code %d", err); 1646 } 1647 switch(err = wd->sc_wdc_bio.error) { 1648 case TIMEOUT: 1649 printf("wddump: device timed out"); 1650 err = EIO; 1651 break; 1652 case ERR_DF: 1653 printf("wddump: drive fault"); 1654 err = EIO; 1655 break; 1656 case ERR_DMA: 1657 printf("wddump: DMA error"); 1658 err = EIO; 1659 break; 1660 case ERROR: 1661 printf("wddump: "); 1662 wdperror(wd); 1663 err = EIO; 1664 break; 1665 case NOERROR: 1666 err = 0; 1667 break; 1668 default: 1669 panic("wddump: unknown error type %d", err); 1670 } 1671 if (err != 0) { 1672 printf("\n"); 1673 return err; 1674 } 1675 #else /* WD_DUMP_NOT_TRUSTED */ 1676 /* Let's just talk about this first... */ 1677 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1678 unit, va, cylin, head, sector); 1679 delay(500 * 1000); /* half a second */ 1680 #endif 1681 1682 wddoingadump = 0; 1683 return 0; 1684 } 1685 1686 #ifdef HAS_BAD144_HANDLING 1687 /* 1688 * Internalize the bad sector table. 1689 */ 1690 void 1691 bad144intern(struct wd_softc *wd) 1692 { 1693 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1694 struct disklabel *lp = wd->sc_dk.dk_label; 1695 int i = 0; 1696 1697 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1698 1699 for (; i < NBT_BAD; i++) { 1700 if (bt->bt_bad[i].bt_cyl == 0xffff) 1701 break; 1702 wd->sc_badsect[i] = 1703 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1704 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1705 (bt->bt_bad[i].bt_trksec & 0xff); 1706 } 1707 for (; i < NBT_BAD+1; i++) 1708 wd->sc_badsect[i] = -1; 1709 } 1710 #endif 1711 1712 static void 1713 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1714 { 1715 prop_dictionary_t disk_info, odisk_info, geom; 1716 const char *cp; 1717 1718 disk_info = prop_dictionary_create(); 1719 1720 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1721 cp = "ST506"; 1722 else { 1723 /* XXX Should have a case for ATA here, too. */ 1724 cp = "ESDI"; 1725 } 1726 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1727 1728 geom = prop_dictionary_create(); 1729 1730 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1731 1732 prop_dictionary_set_uint32(geom, "sector-size", 1733 DEV_BSIZE /* XXX 512? */); 1734 1735 prop_dictionary_set_uint16(geom, "sectors-per-track", 1736 wd->sc_params.atap_sectors); 1737 1738 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1739 wd->sc_params.atap_heads); 1740 1741 if (wd->sc_flags & WDF_LBA) 1742 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1743 wd->sc_capacity / 1744 (wd->sc_params.atap_heads * 1745 wd->sc_params.atap_sectors)); 1746 else 1747 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1748 wd->sc_params.atap_cylinders); 1749 1750 prop_dictionary_set(disk_info, "geometry", geom); 1751 prop_object_release(geom); 1752 1753 prop_dictionary_set(device_properties(wd->sc_dev), 1754 "disk-info", disk_info); 1755 1756 /* 1757 * Don't release disk_info here; we keep a reference to it. 1758 * disk_detach() will release it when we go away. 1759 */ 1760 1761 odisk_info = wd->sc_dk.dk_info; 1762 wd->sc_dk.dk_info = disk_info; 1763 if (odisk_info) 1764 prop_object_release(odisk_info); 1765 } 1766 1767 int 1768 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1769 { 1770 1771 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1772 case CMD_AGAIN: 1773 return 1; 1774 case CMD_ERR: 1775 if (wd->drvp->drive_type != ATA_DRIVET_OLD) 1776 return 1; 1777 /* 1778 * We `know' there's a drive here; just assume it's old. 1779 * This geometry is only used to read the MBR and print a 1780 * (false) attach message. 1781 */ 1782 strncpy(params->atap_model, "ST506", 1783 sizeof params->atap_model); 1784 params->atap_config = ATA_CFG_FIXED; 1785 params->atap_cylinders = 1024; 1786 params->atap_heads = 8; 1787 params->atap_sectors = 17; 1788 params->atap_multi = 1; 1789 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1790 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1791 /* FALLTHROUGH */ 1792 case CMD_OK: 1793 wd_params_to_properties(wd, params); 1794 return 0; 1795 default: 1796 panic("wd_get_params: bad return code from ata_get_params"); 1797 /* NOTREACHED */ 1798 } 1799 } 1800 1801 int 1802 wd_getcache(struct wd_softc *wd, int *bitsp) 1803 { 1804 struct ataparams params; 1805 1806 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1807 return EIO; 1808 if (params.atap_cmd_set1 == 0x0000 || 1809 params.atap_cmd_set1 == 0xffff || 1810 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1811 *bitsp = 0; 1812 return 0; 1813 } 1814 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1815 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1816 *bitsp |= DKCACHE_WRITE; 1817 1818 return 0; 1819 } 1820 1821 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1822 1823 int 1824 wd_setcache(struct wd_softc *wd, int bits) 1825 { 1826 struct ataparams params; 1827 struct ata_command ata_c; 1828 1829 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1830 return EIO; 1831 1832 if (params.atap_cmd_set1 == 0x0000 || 1833 params.atap_cmd_set1 == 0xffff || 1834 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1835 return EOPNOTSUPP; 1836 1837 if ((bits & DKCACHE_READ) == 0 || 1838 (bits & DKCACHE_SAVE) != 0) 1839 return EOPNOTSUPP; 1840 1841 memset(&ata_c, 0, sizeof(struct ata_command)); 1842 ata_c.r_command = SET_FEATURES; 1843 ata_c.r_st_bmask = 0; 1844 ata_c.r_st_pmask = 0; 1845 ata_c.timeout = 30000; /* 30s timeout */ 1846 ata_c.flags = AT_WAIT; 1847 if (bits & DKCACHE_WRITE) 1848 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1849 else 1850 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1851 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1852 aprint_error_dev(wd->sc_dev, 1853 "wd_setcache command not complete\n"); 1854 return EIO; 1855 } 1856 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1857 char sbuf[sizeof(at_errbits) + 64]; 1858 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1859 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1860 return EIO; 1861 } 1862 return 0; 1863 } 1864 1865 static int 1866 wd_standby(struct wd_softc *wd, int flags) 1867 { 1868 struct ata_command ata_c; 1869 1870 memset(&ata_c, 0, sizeof(struct ata_command)); 1871 ata_c.r_command = WDCC_STANDBY_IMMED; 1872 ata_c.r_st_bmask = WDCS_DRDY; 1873 ata_c.r_st_pmask = WDCS_DRDY; 1874 ata_c.flags = flags; 1875 ata_c.timeout = 30000; /* 30s timeout */ 1876 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1877 aprint_error_dev(wd->sc_dev, 1878 "standby immediate command didn't complete\n"); 1879 return EIO; 1880 } 1881 if (ata_c.flags & AT_ERROR) { 1882 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1883 return ENODEV; 1884 } 1885 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1886 char sbuf[sizeof(at_errbits) + 64]; 1887 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1888 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1889 return EIO; 1890 } 1891 return 0; 1892 } 1893 1894 int 1895 wd_flushcache(struct wd_softc *wd, int flags) 1896 { 1897 struct ata_command ata_c; 1898 1899 /* 1900 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1901 * only ATA-2 and still support it. 1902 */ 1903 if (wd->drvp->ata_vers < 4 && 1904 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1905 wd->sc_params.atap_cmd_set2 == 0xffff)) 1906 return ENODEV; 1907 memset(&ata_c, 0, sizeof(struct ata_command)); 1908 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1909 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) { 1910 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1911 flags |= AT_LBA48; 1912 } else 1913 ata_c.r_command = WDCC_FLUSHCACHE; 1914 ata_c.r_st_bmask = WDCS_DRDY; 1915 ata_c.r_st_pmask = WDCS_DRDY; 1916 ata_c.flags = flags | AT_READREG; 1917 ata_c.timeout = 300000; /* 5m timeout */ 1918 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1919 aprint_error_dev(wd->sc_dev, 1920 "flush cache command didn't complete\n"); 1921 return EIO; 1922 } 1923 if (ata_c.flags & AT_ERROR) { 1924 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1925 return ENODEV; 1926 } 1927 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1928 char sbuf[sizeof(at_errbits) + 64]; 1929 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1930 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1931 sbuf); 1932 return EIO; 1933 } 1934 return 0; 1935 } 1936 1937 bool 1938 wd_shutdown(device_t dev, int how) 1939 { 1940 struct wd_softc *wd = device_private(dev); 1941 1942 /* the adapter needs to be enabled */ 1943 if (wd->atabus->ata_addref(wd->drvp)) 1944 return true; /* no need to complain */ 1945 1946 wd_flushcache(wd, AT_POLL); 1947 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 1948 wd_standby(wd, AT_POLL); 1949 return true; 1950 } 1951 1952 /* 1953 * Allocate space for a ioctl queue structure. Mostly taken from 1954 * scsipi_ioctl.c 1955 */ 1956 struct wd_ioctl * 1957 wi_get(void) 1958 { 1959 struct wd_ioctl *wi; 1960 int s; 1961 1962 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1963 buf_init(&wi->wi_bp); 1964 s = splbio(); 1965 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1966 splx(s); 1967 return (wi); 1968 } 1969 1970 /* 1971 * Free an ioctl structure and remove it from our list 1972 */ 1973 1974 void 1975 wi_free(struct wd_ioctl *wi) 1976 { 1977 int s; 1978 1979 s = splbio(); 1980 LIST_REMOVE(wi, wi_list); 1981 splx(s); 1982 buf_destroy(&wi->wi_bp); 1983 free(wi, M_TEMP); 1984 } 1985 1986 /* 1987 * Find a wd_ioctl structure based on the struct buf. 1988 */ 1989 1990 struct wd_ioctl * 1991 wi_find(struct buf *bp) 1992 { 1993 struct wd_ioctl *wi; 1994 int s; 1995 1996 s = splbio(); 1997 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1998 if (bp == &wi->wi_bp) 1999 break; 2000 splx(s); 2001 return (wi); 2002 } 2003 2004 /* 2005 * Ioctl pseudo strategy routine 2006 * 2007 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2008 * happens here is: 2009 * 2010 * - wdioctl() queues a wd_ioctl structure. 2011 * 2012 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2013 * user space I/O is required. If physio() is called, physio() eventually 2014 * calls wdioctlstrategy(). 2015 * 2016 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2017 * to perform the actual command 2018 * 2019 * The reason for the use of the pseudo strategy routine is because 2020 * when doing I/O to/from user space, physio _really_ wants to be in 2021 * the loop. We could put the entire buffer into the ioctl request 2022 * structure, but that won't scale if we want to do things like download 2023 * microcode. 2024 */ 2025 2026 void 2027 wdioctlstrategy(struct buf *bp) 2028 { 2029 struct wd_ioctl *wi; 2030 struct ata_command ata_c; 2031 int error = 0; 2032 2033 wi = wi_find(bp); 2034 if (wi == NULL) { 2035 printf("wdioctlstrategy: " 2036 "No matching ioctl request found in queue\n"); 2037 error = EINVAL; 2038 goto bad; 2039 } 2040 2041 memset(&ata_c, 0, sizeof(ata_c)); 2042 2043 /* 2044 * Abort if physio broke up the transfer 2045 */ 2046 2047 if (bp->b_bcount != wi->wi_atareq.datalen) { 2048 printf("physio split wd ioctl request... cannot proceed\n"); 2049 error = EIO; 2050 goto bad; 2051 } 2052 2053 /* 2054 * Abort if we didn't get a buffer size that was a multiple of 2055 * our sector size (or was larger than NBBY) 2056 */ 2057 2058 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2059 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2060 (1 << NBBY)) { 2061 error = EINVAL; 2062 goto bad; 2063 } 2064 2065 /* 2066 * Make sure a timeout was supplied in the ioctl request 2067 */ 2068 2069 if (wi->wi_atareq.timeout == 0) { 2070 error = EINVAL; 2071 goto bad; 2072 } 2073 2074 if (wi->wi_atareq.flags & ATACMD_READ) 2075 ata_c.flags |= AT_READ; 2076 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2077 ata_c.flags |= AT_WRITE; 2078 2079 if (wi->wi_atareq.flags & ATACMD_READREG) 2080 ata_c.flags |= AT_READREG; 2081 2082 if ((wi->wi_atareq.flags & ATACMD_LBA) != 0) 2083 ata_c.flags |= AT_LBA; 2084 2085 ata_c.flags |= AT_WAIT; 2086 2087 ata_c.timeout = wi->wi_atareq.timeout; 2088 ata_c.r_command = wi->wi_atareq.command; 2089 ata_c.r_lba = ((wi->wi_atareq.head & 0x0f) << 24) | 2090 (wi->wi_atareq.cylinder << 8) | 2091 wi->wi_atareq.sec_num; 2092 ata_c.r_count = wi->wi_atareq.sec_count; 2093 ata_c.r_features = wi->wi_atareq.features; 2094 ata_c.r_st_bmask = WDCS_DRDY; 2095 ata_c.r_st_pmask = WDCS_DRDY; 2096 ata_c.data = wi->wi_bp.b_data; 2097 ata_c.bcount = wi->wi_bp.b_bcount; 2098 2099 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2100 != ATACMD_COMPLETE) { 2101 wi->wi_atareq.retsts = ATACMD_ERROR; 2102 goto bad; 2103 } 2104 2105 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2106 if (ata_c.flags & AT_ERROR) { 2107 wi->wi_atareq.retsts = ATACMD_ERROR; 2108 wi->wi_atareq.error = ata_c.r_error; 2109 } else if (ata_c.flags & AT_DF) 2110 wi->wi_atareq.retsts = ATACMD_DF; 2111 else 2112 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2113 } else { 2114 wi->wi_atareq.retsts = ATACMD_OK; 2115 if (wi->wi_atareq.flags & ATACMD_READREG) { 2116 wi->wi_atareq.command = ata_c.r_status; 2117 wi->wi_atareq.features = ata_c.r_error; 2118 wi->wi_atareq.sec_count = ata_c.r_count; 2119 wi->wi_atareq.sec_num = ata_c.r_lba & 0xff; 2120 wi->wi_atareq.head = (ata_c.r_device & 0xf0) | 2121 ((ata_c.r_lba >> 24) & 0x0f); 2122 wi->wi_atareq.cylinder = (ata_c.r_lba >> 8) & 0xffff; 2123 wi->wi_atareq.error = ata_c.r_error; 2124 } 2125 } 2126 2127 bp->b_error = 0; 2128 biodone(bp); 2129 return; 2130 bad: 2131 bp->b_error = error; 2132 biodone(bp); 2133 } 2134
Indexes created Sun Sep 28 07:09:56 GMT 2025