wd.c revision 1.355.6.4
1 /* $NetBSD: wd.c,v 1.355.6.4 2008/04/06 09:58:50 mjf 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 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by the NetBSD 50 * Foundation, Inc. and its contributors. 51 * 4. Neither the name of The NetBSD Foundation nor the names of its 52 * contributors may be used to endorse or promote products derived 53 * from this software without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 56 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 57 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 58 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 59 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 60 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 61 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 62 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 63 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 64 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 65 * POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #include <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.355.6.4 2008/04/06 09:58:50 mjf Exp $"); 70 71 #include "opt_ata.h" 72 73 #include "rnd.h" 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/kernel.h> 78 #include <sys/conf.h> 79 #include <sys/file.h> 80 #include <sys/stat.h> 81 #include <sys/ioctl.h> 82 #include <sys/buf.h> 83 #include <sys/bufq.h> 84 #include <sys/uio.h> 85 #include <sys/malloc.h> 86 #include <sys/device.h> 87 #include <sys/disklabel.h> 88 #include <sys/disk.h> 89 #include <sys/syslog.h> 90 #include <sys/proc.h> 91 #include <sys/reboot.h> 92 #include <sys/vnode.h> 93 #if NRND > 0 94 #include <sys/rnd.h> 95 #endif 96 97 #include <sys/intr.h> 98 #include <sys/bus.h> 99 100 #include <dev/ata/atareg.h> 101 #include <dev/ata/atavar.h> 102 #include <dev/ata/wdvar.h> 103 #include <dev/ic/wdcreg.h> 104 #include <sys/ataio.h> 105 #include "locators.h" 106 107 #include <prop/proplib.h> 108 109 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 110 111 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 112 #define WDIORETRIES 5 /* number of retries before giving up */ 113 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 114 115 #define WDUNIT(dev) DISKUNIT(dev) 116 #define WDPART(dev) DISKPART(dev) 117 #define WDMINOR(unit, part) DISKMINOR(unit, part) 118 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 119 120 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 121 122 #define DEBUG_INTR 0x01 123 #define DEBUG_XFERS 0x02 124 #define DEBUG_STATUS 0x04 125 #define DEBUG_FUNCS 0x08 126 #define DEBUG_PROBE 0x10 127 #ifdef ATADEBUG 128 int wdcdebug_wd_mask = 0x0; 129 #define ATADEBUG_PRINT(args, level) \ 130 if (wdcdebug_wd_mask & (level)) \ 131 printf args 132 #else 133 #define ATADEBUG_PRINT(args, level) 134 #endif 135 136 int wdprobe(struct device *, struct cfdata *, void *); 137 void wdattach(struct device *, struct device *, void *); 138 int wddetach(struct device *, int); 139 int wdactivate(struct device *, enum devact); 140 int wdprint(void *, char *); 141 void wdperror(const struct wd_softc *); 142 143 static bool wd_suspend(device_t PMF_FN_PROTO); 144 static int wd_standby(struct wd_softc *, int); 145 146 CFATTACH_DECL_NEW(wd, sizeof(struct wd_softc), 147 wdprobe, wdattach, wddetach, wdactivate); 148 149 extern struct cfdriver wd_cd; 150 151 dev_type_open(wdopen); 152 dev_type_close(wdclose); 153 dev_type_read(wdread); 154 dev_type_write(wdwrite); 155 dev_type_ioctl(wdioctl); 156 dev_type_strategy(wdstrategy); 157 dev_type_dump(wddump); 158 dev_type_size(wdsize); 159 160 const struct bdevsw wd_bdevsw = { 161 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 162 }; 163 164 const struct cdevsw wd_cdevsw = { 165 wdopen, wdclose, wdread, wdwrite, wdioctl, 166 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 167 }; 168 169 /* 170 * Glue necessary to hook WDCIOCCOMMAND into physio 171 */ 172 173 struct wd_ioctl { 174 LIST_ENTRY(wd_ioctl) wi_list; 175 struct buf wi_bp; 176 struct uio wi_uio; 177 struct iovec wi_iov; 178 atareq_t wi_atareq; 179 struct wd_softc *wi_softc; 180 }; 181 182 LIST_HEAD(, wd_ioctl) wi_head; 183 184 struct wd_ioctl *wi_find(struct buf *); 185 void wi_free(struct wd_ioctl *); 186 struct wd_ioctl *wi_get(void); 187 void wdioctlstrategy(struct buf *); 188 189 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 190 void wdgetdisklabel(struct wd_softc *); 191 void wdstart(void *); 192 void __wdstart(struct wd_softc*, struct buf *); 193 void wdrestart(void *); 194 void wddone(void *); 195 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 196 int wd_flushcache(struct wd_softc *, int); 197 bool wd_shutdown(device_t, int); 198 199 int wd_getcache(struct wd_softc *, int *); 200 int wd_setcache(struct wd_softc *, int); 201 202 struct dkdriver wddkdriver = { wdstrategy, minphys }; 203 204 #ifdef HAS_BAD144_HANDLING 205 static void bad144intern(struct wd_softc *); 206 #endif 207 208 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 209 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 210 211 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 212 213 /* 214 * Quirk table for IDE drives. Put more-specific matches first, since 215 * a simple globbing routine is used for matching. 216 */ 217 static const struct wd_quirk { 218 const char *wdq_match; /* inquiry pattern to match */ 219 int wdq_quirks; /* drive quirks */ 220 } wd_quirk_table[] = { 221 /* 222 * Some Seagate S-ATA drives have a PHY which can get confused 223 * with the way data is packetized by some S-ATA controllers. 224 * 225 * The work-around is to split in two any write transfer whose 226 * sector count % 15 == 1 (assuming 512 byte sectors). 227 * 228 * XXX This is an incomplete list. There are at least a couple 229 * XXX more model numbers. If you have trouble with such transfers 230 * XXX (8K is the most common) on Seagate S-ATA drives, please 231 * XXX notify thorpej (at) NetBSD.org. 232 */ 233 { "ST3120023AS", 234 WD_QUIRK_SPLIT_MOD15_WRITE }, 235 { "ST380023AS", 236 WD_QUIRK_SPLIT_MOD15_WRITE }, 237 238 /* 239 * These seagate drives seems to have issue addressing sector 0xfffffff 240 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 241 * LBA48 242 * Note that we can't just change the code to always use LBA48 for 243 * sector 0xfffffff, because this would break valid and working 244 * setups using LBA48 drives on non-LBA48-capable controllers 245 * (and it's hard to get a list of such controllers) 246 */ 247 { "ST3160021A*", 248 WD_QUIRK_FORCE_LBA48 }, 249 { "ST3160811A*", 250 WD_QUIRK_FORCE_LBA48 }, 251 { "ST3160812A*", 252 WD_QUIRK_FORCE_LBA48 }, 253 { "ST3160023A*", 254 WD_QUIRK_FORCE_LBA48 }, 255 { "ST3160827A*", 256 WD_QUIRK_FORCE_LBA48 }, 257 /* Attempt to catch all seagate drives larger than 200GB */ 258 { "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 259 WD_QUIRK_FORCE_LBA48 }, 260 { "ST3[1-9][0-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 261 WD_QUIRK_FORCE_LBA48 }, 262 { NULL, 263 0 } 264 }; 265 266 static const struct wd_quirk * 267 wd_lookup_quirks(const char *name) 268 { 269 const struct wd_quirk *wdq; 270 const char *estr; 271 272 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 273 /* 274 * We only want exact matches (which include matches 275 * against globbing characters). 276 */ 277 if (pmatch(name, wdq->wdq_match, &estr) == 2) 278 return (wdq); 279 } 280 return (NULL); 281 } 282 283 int 284 wdprobe(struct device *parent, struct cfdata *match, void *aux) 285 { 286 struct ata_device *adev = aux; 287 288 if (adev == NULL) 289 return 0; 290 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 291 return 0; 292 293 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 294 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 295 return 0; 296 return 1; 297 } 298 299 void 300 wdattach(struct device *parent, struct device *self, void *aux) 301 { 302 struct wd_softc *wd = device_private(self); 303 struct ata_device *adev= aux; 304 int i, blank; 305 char tbuf[41], pbuf[9], c, *p, *q; 306 const struct wd_quirk *wdq; 307 uint16_t np; 308 int bmajor, cmajor; 309 310 wd->sc_dev = self; 311 312 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 313 callout_init(&wd->sc_restart_ch, 0); 314 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 315 #ifdef WD_SOFTBADSECT 316 SLIST_INIT(&wd->sc_bslist); 317 #endif 318 wd->atabus = adev->adev_bustype; 319 wd->openings = adev->adev_openings; 320 wd->drvp = adev->adev_drv_data; 321 322 wd->drvp->drv_done = wddone; 323 wd->drvp->drv_softc = wd->sc_dev; 324 325 aprint_naive("\n"); 326 327 /* read our drive info */ 328 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 329 aprint_error("\n%s: IDENTIFY failed\n", device_xname(self)); 330 return; 331 } 332 333 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 334 i < sizeof(wd->sc_params.atap_model); i++) { 335 c = *p++; 336 if (c == '\0') 337 break; 338 if (c != ' ') { 339 if (blank) { 340 *q++ = ' '; 341 blank = 0; 342 } 343 *q++ = c; 344 } else 345 blank = 1; 346 } 347 *q++ = '\0'; 348 349 aprint_normal(": <%s>\n", tbuf); 350 351 wdq = wd_lookup_quirks(tbuf); 352 if (wdq != NULL) 353 wd->sc_quirks = wdq->wdq_quirks; 354 355 if (wd->sc_quirks != 0) { 356 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 357 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 358 sbuf, sizeof(sbuf)); 359 aprint_normal_dev(self, "quirks %s\n", sbuf); 360 } 361 362 if ((wd->sc_params.atap_multi & 0xff) > 1) { 363 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 364 } else { 365 wd->sc_multi = 1; 366 } 367 368 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 369 wd->sc_multi); 370 371 /* 48-bit LBA addressing */ 372 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 373 wd->sc_flags |= WDF_LBA48; 374 375 /* Prior to ATA-4, LBA was optional. */ 376 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 377 wd->sc_flags |= WDF_LBA; 378 #if 0 379 /* ATA-4 requires LBA. */ 380 if (wd->sc_params.atap_ataversion != 0xffff && 381 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 382 wd->sc_flags |= WDF_LBA; 383 #endif 384 385 if ((wd->sc_flags & WDF_LBA48) != 0) { 386 aprint_verbose(" LBA48 addressing\n"); 387 wd->sc_capacity = 388 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 389 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 390 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 391 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 392 } else if ((wd->sc_flags & WDF_LBA) != 0) { 393 aprint_verbose(" LBA addressing\n"); 394 wd->sc_capacity = 395 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 396 wd->sc_params.atap_capacity[0]; 397 } else { 398 aprint_verbose(" chs addressing\n"); 399 wd->sc_capacity = 400 wd->sc_params.atap_cylinders * 401 wd->sc_params.atap_heads * 402 wd->sc_params.atap_sectors; 403 } 404 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 405 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 406 "%d bytes/sect x %llu sectors\n", 407 pbuf, 408 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 409 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 410 wd->sc_params.atap_cylinders, 411 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 412 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 413 414 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 415 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 416 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 417 /* 418 * Initialize and attach the disk structure. 419 */ 420 /* we fill in dk_info later */ 421 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 422 disk_attach(&wd->sc_dk); 423 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 424 #if NRND > 0 425 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 426 RND_TYPE_DISK, 0); 427 #endif 428 429 /* Discover wedges on this disk. */ 430 dkwedge_discover(&wd->sc_dk); 431 432 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 433 aprint_error_dev(self, "couldn't establish power handler\n"); 434 435 bmajor = bdevsw_lookup_major(&wd_bdevsw); 436 cmajor = cdevsw_lookup_major(&wd_cdevsw); 437 438 np = wd->sc_dk.dk_label->d_npartitions; 439 440 for (i = 0; i < np; i++) { 441 device_register_name( 442 MAKEDISKDEV(bmajor, device_unit(wd->sc_dev), i), 443 self, false, DEV_DISK, 444 "wd%d%c", device_unit(wd->sc_dev), 'a' + i); 445 446 device_register_name( 447 MAKEDISKDEV(cmajor, device_unit(wd->sc_dev), i), 448 self, true, DEV_DISK, 449 "rwd%d%c", device_unit(wd->sc_dev), 'a' + i); 450 } 451 } 452 453 static bool 454 wd_suspend(device_t dv PMF_FN_ARGS) 455 { 456 struct wd_softc *sc = device_private(dv); 457 458 wd_flushcache(sc, AT_WAIT); 459 wd_standby(sc, AT_WAIT); 460 return true; 461 } 462 463 int 464 wdactivate(struct device *self, enum devact act) 465 { 466 int rv = 0; 467 468 switch (act) { 469 case DVACT_ACTIVATE: 470 rv = EOPNOTSUPP; 471 break; 472 473 case DVACT_DEACTIVATE: 474 /* 475 * Nothing to do; we key off the device's DVF_ACTIVATE. 476 */ 477 break; 478 } 479 return (rv); 480 } 481 482 int 483 wddetach(struct device *self, int flags) 484 { 485 struct wd_softc *sc = device_private(self); 486 int s, bmaj, cmaj, i, mn, unit; 487 488 device_deregister_all(self); 489 490 /* locate the major number */ 491 bmaj = bdevsw_lookup_major(&wd_bdevsw); 492 cmaj = cdevsw_lookup_major(&wd_cdevsw); 493 494 /* Nuke the vnodes for any open instances. */ 495 for (i = 0; i < MAXPARTITIONS; i++) { 496 unit = device_unit(self); 497 mn = WDMINOR(unit, i); 498 vdevgone(bmaj, mn, mn, VBLK); 499 vdevgone(cmaj, mn, mn, VCHR); 500 } 501 502 /* Delete all of our wedges. */ 503 dkwedge_delall(&sc->sc_dk); 504 505 s = splbio(); 506 507 /* Kill off any queued buffers. */ 508 bufq_drain(sc->sc_q); 509 510 bufq_free(sc->sc_q); 511 sc->atabus->ata_killpending(sc->drvp); 512 513 splx(s); 514 515 /* Detach disk. */ 516 disk_detach(&sc->sc_dk); 517 518 #ifdef WD_SOFTBADSECT 519 /* Clean out the bad sector list */ 520 while (!SLIST_EMPTY(&sc->sc_bslist)) { 521 void *head = SLIST_FIRST(&sc->sc_bslist); 522 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 523 free(head, M_TEMP); 524 } 525 sc->sc_bscount = 0; 526 #endif 527 528 pmf_device_deregister(self); 529 530 #if NRND > 0 531 /* Unhook the entropy source. */ 532 rnd_detach_source(&sc->rnd_source); 533 #endif 534 535 sc->drvp->drive_flags = 0; /* no drive any more here */ 536 537 return (0); 538 } 539 540 /* 541 * Read/write routine for a buffer. Validates the arguments and schedules the 542 * transfer. Does not wait for the transfer to complete. 543 */ 544 void 545 wdstrategy(struct buf *bp) 546 { 547 struct wd_softc *wd = 548 device_private(device_lookup(&wd_cd, WDUNIT(bp->b_dev))); 549 struct disklabel *lp = wd->sc_dk.dk_label; 550 daddr_t blkno; 551 int s; 552 553 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 554 DEBUG_XFERS); 555 556 /* Valid request? */ 557 if (bp->b_blkno < 0 || 558 (bp->b_bcount % lp->d_secsize) != 0 || 559 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 560 bp->b_error = EINVAL; 561 goto done; 562 } 563 564 /* If device invalidated (e.g. media change, door open), error. */ 565 if ((wd->sc_flags & WDF_LOADED) == 0) { 566 bp->b_error = EIO; 567 goto done; 568 } 569 570 /* If it's a null transfer, return immediately. */ 571 if (bp->b_bcount == 0) 572 goto done; 573 574 /* 575 * Do bounds checking, adjust transfer. if error, process. 576 * If end of partition, just return. 577 */ 578 if (WDPART(bp->b_dev) == RAW_PART) { 579 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 580 wd->sc_capacity) <= 0) 581 goto done; 582 } else { 583 if (bounds_check_with_label(&wd->sc_dk, bp, 584 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 585 goto done; 586 } 587 588 /* 589 * Now convert the block number to absolute and put it in 590 * terms of the device's logical block size. 591 */ 592 if (lp->d_secsize >= DEV_BSIZE) 593 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 594 else 595 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 596 597 if (WDPART(bp->b_dev) != RAW_PART) 598 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 599 600 bp->b_rawblkno = blkno; 601 602 #ifdef WD_SOFTBADSECT 603 /* 604 * If the transfer about to be attempted contains only a block that 605 * is known to be bad then return an error for the transfer without 606 * even attempting to start a transfer up under the premis that we 607 * will just end up doing more retries for a transfer that will end 608 * up failing again. 609 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 610 */ 611 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 612 struct disk_badsectors *dbs; 613 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 614 615 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 616 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 617 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 618 bp->b_error = EIO; 619 goto done; 620 } 621 } 622 #endif 623 624 /* Queue transfer on drive, activate drive and controller if idle. */ 625 s = splbio(); 626 BUFQ_PUT(wd->sc_q, bp); 627 wdstart(wd); 628 splx(s); 629 return; 630 done: 631 /* Toss transfer; we're done early. */ 632 bp->b_resid = bp->b_bcount; 633 biodone(bp); 634 } 635 636 /* 637 * Queue a drive for I/O. 638 */ 639 void 640 wdstart(void *arg) 641 { 642 struct wd_softc *wd = arg; 643 struct buf *bp = NULL; 644 645 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 646 DEBUG_XFERS); 647 while (wd->openings > 0) { 648 649 /* Is there a buf for us ? */ 650 if ((bp = BUFQ_GET(wd->sc_q)) == NULL) 651 return; 652 653 /* 654 * Make the command. First lock the device 655 */ 656 wd->openings--; 657 658 wd->retries = 0; 659 __wdstart(wd, bp); 660 } 661 } 662 663 static void 664 wd_split_mod15_write(struct buf *bp) 665 { 666 struct buf *obp = bp->b_private; 667 struct wd_softc *sc = 668 device_private(wd_cd.cd_devs[DISKUNIT(obp->b_dev)]); 669 670 if (__predict_false(bp->b_error != 0)) { 671 /* 672 * Propagate the error. If this was the first half of 673 * the original transfer, make sure to account for that 674 * in the residual. 675 */ 676 if (bp->b_data == obp->b_data) 677 bp->b_resid += bp->b_bcount; 678 goto done; 679 } 680 681 /* 682 * If this was the second half of the transfer, we're all done! 683 */ 684 if (bp->b_data != obp->b_data) 685 goto done; 686 687 /* 688 * Advance the pointer to the second half and issue that command 689 * using the same opening. 690 */ 691 bp->b_flags = obp->b_flags; 692 bp->b_oflags = obp->b_oflags; 693 bp->b_cflags = obp->b_cflags; 694 bp->b_data = (char *)bp->b_data + bp->b_bcount; 695 bp->b_blkno += (bp->b_bcount / 512); 696 bp->b_rawblkno += (bp->b_bcount / 512); 697 __wdstart(sc, bp); 698 return; 699 700 done: 701 obp->b_error = bp->b_error; 702 obp->b_resid = bp->b_resid; 703 putiobuf(bp); 704 biodone(obp); 705 sc->openings++; 706 /* wddone() will call wdstart() */ 707 } 708 709 void 710 __wdstart(struct wd_softc *wd, struct buf *bp) 711 { 712 713 /* 714 * Deal with the "split mod15 write" quirk. We just divide the 715 * transfer in two, doing the first half and then then second half 716 * with the same command opening. 717 * 718 * Note we MUST do this here, because we can't let insertion 719 * into the bufq cause the transfers to be re-merged. 720 */ 721 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 722 (bp->b_flags & B_READ) == 0 && 723 bp->b_bcount > 512 && 724 ((bp->b_bcount / 512) % 15) == 1)) { 725 struct buf *nbp; 726 727 /* already at splbio */ 728 nbp = getiobuf(NULL, false); 729 if (__predict_false(nbp == NULL)) { 730 /* No memory -- fail the iop. */ 731 bp->b_error = ENOMEM; 732 bp->b_resid = bp->b_bcount; 733 biodone(bp); 734 wd->openings++; 735 return; 736 } 737 738 nbp->b_error = 0; 739 nbp->b_proc = bp->b_proc; 740 nbp->b_dev = bp->b_dev; 741 742 nbp->b_bcount = bp->b_bcount / 2; 743 nbp->b_bufsize = bp->b_bcount / 2; 744 nbp->b_data = bp->b_data; 745 746 nbp->b_blkno = bp->b_blkno; 747 nbp->b_rawblkno = bp->b_rawblkno; 748 749 nbp->b_flags = bp->b_flags; 750 nbp->b_oflags = bp->b_oflags; 751 nbp->b_cflags = bp->b_cflags; 752 nbp->b_iodone = wd_split_mod15_write; 753 754 /* Put ptr to orig buf in b_private and use new buf */ 755 nbp->b_private = bp; 756 757 BIO_COPYPRIO(nbp, bp); 758 759 bp = nbp; 760 } 761 762 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 763 wd->sc_wdc_bio.blkdone =0; 764 wd->sc_bp = bp; 765 /* 766 * If we're retrying, retry in single-sector mode. This will give us 767 * the sector number of the problem, and will eventually allow the 768 * transfer to succeed. 769 */ 770 if (wd->retries >= WDIORETRIES_SINGLE) 771 wd->sc_wdc_bio.flags = ATA_SINGLE; 772 else 773 wd->sc_wdc_bio.flags = 0; 774 if (wd->sc_flags & WDF_LBA48 && 775 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 776 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 777 wd->sc_wdc_bio.flags |= ATA_LBA48; 778 if (wd->sc_flags & WDF_LBA) 779 wd->sc_wdc_bio.flags |= ATA_LBA; 780 if (bp->b_flags & B_READ) 781 wd->sc_wdc_bio.flags |= ATA_READ; 782 wd->sc_wdc_bio.bcount = bp->b_bcount; 783 wd->sc_wdc_bio.databuf = bp->b_data; 784 /* Instrumentation. */ 785 disk_busy(&wd->sc_dk); 786 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 787 case ATACMD_TRY_AGAIN: 788 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 789 break; 790 case ATACMD_QUEUED: 791 case ATACMD_COMPLETE: 792 break; 793 default: 794 panic("__wdstart: bad return code from ata_bio()"); 795 } 796 } 797 798 void 799 wddone(void *v) 800 { 801 struct wd_softc *wd = device_private(v); 802 struct buf *bp = wd->sc_bp; 803 const char *errmsg; 804 int do_perror = 0; 805 int nblks; 806 807 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 808 DEBUG_XFERS); 809 if (bp == NULL) 810 return; 811 bp->b_resid = wd->sc_wdc_bio.bcount; 812 switch (wd->sc_wdc_bio.error) { 813 case ERR_DMA: 814 errmsg = "DMA error"; 815 goto retry; 816 case ERR_DF: 817 errmsg = "device fault"; 818 goto retry; 819 case TIMEOUT: 820 errmsg = "device timeout"; 821 goto retry; 822 case ERR_RESET: 823 errmsg = "channel reset"; 824 goto retry2; 825 case ERROR: 826 /* Don't care about media change bits */ 827 if (wd->sc_wdc_bio.r_error != 0 && 828 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 829 goto noerror; 830 errmsg = "error"; 831 do_perror = 1; 832 if ((wd->sc_wdc_bio.r_error & (WDCE_IDNF | WDCE_ABRT)) && 833 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 834 nblks = wd->sc_wdc_bio.bcount / 835 wd->sc_dk.dk_label->d_secsize; 836 /* 837 * If we get a "id not found" when crossing the 838 * LBA48_THRESHOLD, and the drive is larger than 839 * 128GB, then we can assume the drive has the 840 * LBA48 bug and we switch to LBA48. 841 */ 842 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 843 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 844 wd->sc_capacity > LBA48_THRESHOLD + 1) { 845 errmsg = "LBA48 bug"; 846 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 847 do_perror = 0; 848 goto retry2; 849 } 850 } 851 retry: /* Just reset and retry. Can we do more ? */ 852 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 853 retry2: 854 diskerr(bp, "wd", errmsg, LOG_PRINTF, 855 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 856 if (wd->retries < WDIORETRIES) 857 printf(", retrying"); 858 printf("\n"); 859 if (do_perror) 860 wdperror(wd); 861 if (wd->retries < WDIORETRIES) { 862 wd->retries++; 863 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 864 wdrestart, wd); 865 return; 866 } 867 868 #ifdef WD_SOFTBADSECT 869 /* 870 * Not all errors indicate a failed block but those that do, 871 * put the block on the bad-block list for the device. Only 872 * do this for reads because the drive should do it for writes, 873 * itself, according to Manuel. 874 */ 875 if ((bp->b_flags & B_READ) && 876 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 877 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 878 struct disk_badsectors *dbs; 879 880 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 881 dbs->dbs_min = bp->b_rawblkno; 882 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 883 microtime(&dbs->dbs_failedat); 884 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 885 wd->sc_bscount++; 886 } 887 #endif 888 bp->b_error = EIO; 889 break; 890 case NOERROR: 891 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 892 aprint_error_dev(wd->sc_dev, 893 "soft error (corrected)\n"); 894 break; 895 case ERR_NODEV: 896 bp->b_error = EIO; 897 break; 898 } 899 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 900 (bp->b_flags & B_READ)); 901 #if NRND > 0 902 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 903 #endif 904 /* XXX Yuck, but we don't want to increment openings in this case */ 905 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 906 biodone(bp); 907 else { 908 biodone(bp); 909 wd->openings++; 910 } 911 wdstart(wd); 912 } 913 914 void 915 wdrestart(void *v) 916 { 917 struct wd_softc *wd = v; 918 struct buf *bp = wd->sc_bp; 919 int s; 920 921 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 922 DEBUG_XFERS); 923 s = splbio(); 924 __wdstart(v, bp); 925 splx(s); 926 } 927 928 int 929 wdread(dev_t dev, struct uio *uio, int flags) 930 { 931 932 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 933 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 934 } 935 936 int 937 wdwrite(dev_t dev, struct uio *uio, int flags) 938 { 939 940 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 941 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 942 } 943 944 int 945 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 946 { 947 struct wd_softc *wd; 948 int part, error; 949 950 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 951 wd = device_private(device_lookup(&wd_cd, WDUNIT(dev))); 952 if (wd == NULL) 953 return (ENXIO); 954 955 if (! device_is_active(wd->sc_dev)) 956 return (ENODEV); 957 958 part = WDPART(dev); 959 960 mutex_enter(&wd->sc_dk.dk_openlock); 961 962 /* 963 * If there are wedges, and this is not RAW_PART, then we 964 * need to fail. 965 */ 966 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 967 error = EBUSY; 968 goto bad1; 969 } 970 971 /* 972 * If this is the first open of this device, add a reference 973 * to the adapter. 974 */ 975 if (wd->sc_dk.dk_openmask == 0 && 976 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 977 goto bad1; 978 979 if (wd->sc_dk.dk_openmask != 0) { 980 /* 981 * If any partition is open, but the disk has been invalidated, 982 * disallow further opens. 983 */ 984 if ((wd->sc_flags & WDF_LOADED) == 0) { 985 error = EIO; 986 goto bad2; 987 } 988 } else { 989 if ((wd->sc_flags & WDF_LOADED) == 0) { 990 wd->sc_flags |= WDF_LOADED; 991 992 /* Load the physical device parameters. */ 993 wd_get_params(wd, AT_WAIT, &wd->sc_params); 994 995 /* Load the partition info if not already loaded. */ 996 wdgetdisklabel(wd); 997 } 998 } 999 1000 /* Check that the partition exists. */ 1001 if (part != RAW_PART && 1002 (part >= wd->sc_dk.dk_label->d_npartitions || 1003 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 1004 error = ENXIO; 1005 goto bad2; 1006 } 1007 1008 /* Insure only one open at a time. */ 1009 switch (fmt) { 1010 case S_IFCHR: 1011 wd->sc_dk.dk_copenmask |= (1 << part); 1012 break; 1013 case S_IFBLK: 1014 wd->sc_dk.dk_bopenmask |= (1 << part); 1015 break; 1016 } 1017 wd->sc_dk.dk_openmask = 1018 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1019 1020 mutex_exit(&wd->sc_dk.dk_openlock); 1021 return 0; 1022 1023 bad2: 1024 if (wd->sc_dk.dk_openmask == 0) 1025 wd->atabus->ata_delref(wd->drvp); 1026 bad1: 1027 mutex_exit(&wd->sc_dk.dk_openlock); 1028 return error; 1029 } 1030 1031 int 1032 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1033 { 1034 struct wd_softc *wd = 1035 device_private(device_lookup(&wd_cd, WDUNIT(dev))); 1036 int part = WDPART(dev); 1037 1038 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1039 1040 mutex_enter(&wd->sc_dk.dk_openlock); 1041 1042 switch (fmt) { 1043 case S_IFCHR: 1044 wd->sc_dk.dk_copenmask &= ~(1 << part); 1045 break; 1046 case S_IFBLK: 1047 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1048 break; 1049 } 1050 wd->sc_dk.dk_openmask = 1051 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1052 1053 if (wd->sc_dk.dk_openmask == 0) { 1054 wd_flushcache(wd, AT_WAIT); 1055 1056 if (! (wd->sc_flags & WDF_KLABEL)) 1057 wd->sc_flags &= ~WDF_LOADED; 1058 1059 wd->atabus->ata_delref(wd->drvp); 1060 } 1061 1062 mutex_exit(&wd->sc_dk.dk_openlock); 1063 return 0; 1064 } 1065 1066 void 1067 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1068 { 1069 1070 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1071 memset(lp, 0, sizeof(struct disklabel)); 1072 1073 lp->d_secsize = DEV_BSIZE; 1074 lp->d_ntracks = wd->sc_params.atap_heads; 1075 lp->d_nsectors = wd->sc_params.atap_sectors; 1076 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1077 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1078 wd->sc_params.atap_cylinders; 1079 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1080 1081 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1082 lp->d_type = DTYPE_ST506; 1083 else 1084 lp->d_type = DTYPE_ESDI; 1085 1086 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1087 strncpy(lp->d_packname, "fictitious", 16); 1088 if (wd->sc_capacity > UINT32_MAX) 1089 lp->d_secperunit = UINT32_MAX; 1090 else 1091 lp->d_secperunit = wd->sc_capacity; 1092 lp->d_rpm = 3600; 1093 lp->d_interleave = 1; 1094 lp->d_flags = 0; 1095 1096 lp->d_partitions[RAW_PART].p_offset = 0; 1097 lp->d_partitions[RAW_PART].p_size = 1098 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1099 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1100 lp->d_npartitions = RAW_PART + 1; 1101 1102 lp->d_magic = DISKMAGIC; 1103 lp->d_magic2 = DISKMAGIC; 1104 lp->d_checksum = dkcksum(lp); 1105 } 1106 1107 /* 1108 * Fabricate a default disk label, and try to read the correct one. 1109 */ 1110 void 1111 wdgetdisklabel(struct wd_softc *wd) 1112 { 1113 struct disklabel *lp = wd->sc_dk.dk_label; 1114 const char *errstring; 1115 int s; 1116 1117 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1118 1119 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1120 1121 wdgetdefaultlabel(wd, lp); 1122 1123 wd->sc_badsect[0] = -1; 1124 1125 if (wd->drvp->state > RESET) { 1126 s = splbio(); 1127 wd->drvp->drive_flags |= DRIVE_RESET; 1128 splx(s); 1129 } 1130 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1131 RAW_PART), wdstrategy, lp, 1132 wd->sc_dk.dk_cpulabel); 1133 if (errstring) { 1134 /* 1135 * This probably happened because the drive's default 1136 * geometry doesn't match the DOS geometry. We 1137 * assume the DOS geometry is now in the label and try 1138 * again. XXX This is a kluge. 1139 */ 1140 if (wd->drvp->state > RESET) { 1141 s = splbio(); 1142 wd->drvp->drive_flags |= DRIVE_RESET; 1143 splx(s); 1144 } 1145 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1146 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1147 } 1148 if (errstring) { 1149 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1150 return; 1151 } 1152 1153 if (wd->drvp->state > RESET) { 1154 s = splbio(); 1155 wd->drvp->drive_flags |= DRIVE_RESET; 1156 splx(s); 1157 } 1158 #ifdef HAS_BAD144_HANDLING 1159 if ((lp->d_flags & D_BADSECT) != 0) 1160 bad144intern(wd); 1161 #endif 1162 } 1163 1164 void 1165 wdperror(const struct wd_softc *wd) 1166 { 1167 static const char *const errstr0_3[] = {"address mark not found", 1168 "track 0 not found", "aborted command", "media change requested", 1169 "id not found", "media changed", "uncorrectable data error", 1170 "bad block detected"}; 1171 static const char *const errstr4_5[] = { 1172 "obsolete (address mark not found)", 1173 "no media/write protected", "aborted command", 1174 "media change requested", "id not found", "media changed", 1175 "uncorrectable data error", "interface CRC error"}; 1176 const char *const *errstr; 1177 int i; 1178 const char *sep = ""; 1179 1180 const char *devname = device_xname(wd->sc_dev); 1181 struct ata_drive_datas *drvp = wd->drvp; 1182 int errno = wd->sc_wdc_bio.r_error; 1183 1184 if (drvp->ata_vers >= 4) 1185 errstr = errstr4_5; 1186 else 1187 errstr = errstr0_3; 1188 1189 printf("%s: (", devname); 1190 1191 if (errno == 0) 1192 printf("error not notified"); 1193 1194 for (i = 0; i < 8; i++) { 1195 if (errno & (1 << i)) { 1196 printf("%s%s", sep, errstr[i]); 1197 sep = ", "; 1198 } 1199 } 1200 printf(")\n"); 1201 } 1202 1203 int 1204 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1205 { 1206 struct wd_softc *wd = 1207 device_private(device_lookup(&wd_cd, WDUNIT(dev))); 1208 int error = 0, s; 1209 #ifdef __HAVE_OLD_DISKLABEL 1210 struct disklabel *newlabel = NULL; 1211 #endif 1212 1213 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1214 1215 if ((wd->sc_flags & WDF_LOADED) == 0) 1216 return EIO; 1217 1218 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1219 if (error != EPASSTHROUGH) 1220 return (error); 1221 1222 switch (xfer) { 1223 #ifdef HAS_BAD144_HANDLING 1224 case DIOCSBAD: 1225 if ((flag & FWRITE) == 0) 1226 return EBADF; 1227 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1228 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1229 bad144intern(wd); 1230 return 0; 1231 #endif 1232 #ifdef WD_SOFTBADSECT 1233 case DIOCBSLIST : 1234 { 1235 u_int32_t count, missing, skip; 1236 struct disk_badsecinfo dbsi; 1237 struct disk_badsectors *dbs; 1238 size_t available; 1239 uint8_t *laddr; 1240 1241 dbsi = *(struct disk_badsecinfo *)addr; 1242 missing = wd->sc_bscount; 1243 count = 0; 1244 available = dbsi.dbsi_bufsize; 1245 skip = dbsi.dbsi_skip; 1246 laddr = (uint8_t *)dbsi.dbsi_buffer; 1247 1248 /* 1249 * We start this loop with the expectation that all of the 1250 * entries will be missed and decrement this counter each 1251 * time we either skip over one (already copied out) or 1252 * we actually copy it back to user space. The structs 1253 * holding the bad sector information are copied directly 1254 * back to user space whilst the summary is returned via 1255 * the struct passed in via the ioctl. 1256 */ 1257 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1258 if (skip > 0) { 1259 missing--; 1260 skip--; 1261 continue; 1262 } 1263 if (available < sizeof(*dbs)) 1264 break; 1265 available -= sizeof(*dbs); 1266 copyout(dbs, laddr, sizeof(*dbs)); 1267 laddr += sizeof(*dbs); 1268 missing--; 1269 count++; 1270 } 1271 dbsi.dbsi_left = missing; 1272 dbsi.dbsi_copied = count; 1273 *(struct disk_badsecinfo *)addr = dbsi; 1274 return 0; 1275 } 1276 1277 case DIOCBSFLUSH : 1278 /* Clean out the bad sector list */ 1279 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1280 void *head = SLIST_FIRST(&wd->sc_bslist); 1281 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1282 free(head, M_TEMP); 1283 } 1284 wd->sc_bscount = 0; 1285 return 0; 1286 #endif 1287 case DIOCGDINFO: 1288 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1289 return 0; 1290 #ifdef __HAVE_OLD_DISKLABEL 1291 case ODIOCGDINFO: 1292 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1293 if (newlabel == NULL) 1294 return EIO; 1295 *newlabel = *(wd->sc_dk.dk_label); 1296 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1297 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1298 else 1299 error = ENOTTY; 1300 free(newlabel, M_TEMP); 1301 return error; 1302 #endif 1303 1304 case DIOCGPART: 1305 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1306 ((struct partinfo *)addr)->part = 1307 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1308 return 0; 1309 1310 case DIOCWDINFO: 1311 case DIOCSDINFO: 1312 #ifdef __HAVE_OLD_DISKLABEL 1313 case ODIOCWDINFO: 1314 case ODIOCSDINFO: 1315 #endif 1316 { 1317 struct disklabel *lp; 1318 1319 if ((flag & FWRITE) == 0) 1320 return EBADF; 1321 1322 #ifdef __HAVE_OLD_DISKLABEL 1323 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1324 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1325 if (newlabel == NULL) 1326 return EIO; 1327 memset(newlabel, 0, sizeof newlabel); 1328 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1329 lp = newlabel; 1330 } else 1331 #endif 1332 lp = (struct disklabel *)addr; 1333 1334 mutex_enter(&wd->sc_dk.dk_openlock); 1335 wd->sc_flags |= WDF_LABELLING; 1336 1337 error = setdisklabel(wd->sc_dk.dk_label, 1338 lp, /*wd->sc_dk.dk_openmask : */0, 1339 wd->sc_dk.dk_cpulabel); 1340 if (error == 0) { 1341 if (wd->drvp->state > RESET) { 1342 s = splbio(); 1343 wd->drvp->drive_flags |= DRIVE_RESET; 1344 splx(s); 1345 } 1346 if (xfer == DIOCWDINFO 1347 #ifdef __HAVE_OLD_DISKLABEL 1348 || xfer == ODIOCWDINFO 1349 #endif 1350 ) 1351 error = writedisklabel(WDLABELDEV(dev), 1352 wdstrategy, wd->sc_dk.dk_label, 1353 wd->sc_dk.dk_cpulabel); 1354 } 1355 1356 wd->sc_flags &= ~WDF_LABELLING; 1357 mutex_exit(&wd->sc_dk.dk_openlock); 1358 #ifdef __HAVE_OLD_DISKLABEL 1359 if (newlabel != NULL) 1360 free(newlabel, M_TEMP); 1361 #endif 1362 return error; 1363 } 1364 1365 case DIOCKLABEL: 1366 if (*(int *)addr) 1367 wd->sc_flags |= WDF_KLABEL; 1368 else 1369 wd->sc_flags &= ~WDF_KLABEL; 1370 return 0; 1371 1372 case DIOCWLABEL: 1373 if ((flag & FWRITE) == 0) 1374 return EBADF; 1375 if (*(int *)addr) 1376 wd->sc_flags |= WDF_WLABEL; 1377 else 1378 wd->sc_flags &= ~WDF_WLABEL; 1379 return 0; 1380 1381 case DIOCGDEFLABEL: 1382 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1383 return 0; 1384 #ifdef __HAVE_OLD_DISKLABEL 1385 case ODIOCGDEFLABEL: 1386 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1387 if (newlabel == NULL) 1388 return EIO; 1389 wdgetdefaultlabel(wd, newlabel); 1390 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1391 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1392 else 1393 error = ENOTTY; 1394 free(newlabel, M_TEMP); 1395 return error; 1396 #endif 1397 1398 #ifdef notyet 1399 case DIOCWFORMAT: 1400 if ((flag & FWRITE) == 0) 1401 return EBADF; 1402 { 1403 register struct format_op *fop; 1404 struct iovec aiov; 1405 struct uio auio; 1406 1407 fop = (struct format_op *)addr; 1408 aiov.iov_base = fop->df_buf; 1409 aiov.iov_len = fop->df_count; 1410 auio.uio_iov = &aiov; 1411 auio.uio_iovcnt = 1; 1412 auio.uio_resid = fop->df_count; 1413 auio.uio_offset = 1414 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1415 auio.uio_vmspace = l->l_proc->p_vmspace; 1416 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1417 &auio); 1418 fop->df_count -= auio.uio_resid; 1419 fop->df_reg[0] = wdc->sc_status; 1420 fop->df_reg[1] = wdc->sc_error; 1421 return error; 1422 } 1423 #endif 1424 case DIOCGCACHE: 1425 return wd_getcache(wd, (int *)addr); 1426 1427 case DIOCSCACHE: 1428 return wd_setcache(wd, *(int *)addr); 1429 1430 case DIOCCACHESYNC: 1431 return wd_flushcache(wd, AT_WAIT); 1432 1433 case ATAIOCCOMMAND: 1434 /* 1435 * Make sure this command is (relatively) safe first 1436 */ 1437 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1438 (flag & FWRITE) == 0) 1439 return (EBADF); 1440 { 1441 struct wd_ioctl *wi; 1442 atareq_t *atareq = (atareq_t *) addr; 1443 int error1; 1444 1445 wi = wi_get(); 1446 wi->wi_softc = wd; 1447 wi->wi_atareq = *atareq; 1448 1449 if (atareq->datalen && atareq->flags & 1450 (ATACMD_READ | ATACMD_WRITE)) { 1451 void *tbuf; 1452 if (atareq->datalen < DEV_BSIZE 1453 && atareq->command == WDCC_IDENTIFY) { 1454 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1455 wi->wi_iov.iov_base = tbuf; 1456 wi->wi_iov.iov_len = DEV_BSIZE; 1457 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1458 } else { 1459 tbuf = NULL; 1460 wi->wi_iov.iov_base = atareq->databuf; 1461 wi->wi_iov.iov_len = atareq->datalen; 1462 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1463 } 1464 wi->wi_uio.uio_iov = &wi->wi_iov; 1465 wi->wi_uio.uio_iovcnt = 1; 1466 wi->wi_uio.uio_resid = atareq->datalen; 1467 wi->wi_uio.uio_offset = 0; 1468 wi->wi_uio.uio_rw = 1469 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1470 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1471 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1472 minphys, &wi->wi_uio); 1473 if (tbuf != NULL && error1 == 0) { 1474 error1 = copyout(tbuf, atareq->databuf, 1475 atareq->datalen); 1476 free(tbuf, M_TEMP); 1477 } 1478 } else { 1479 /* No need to call physio if we don't have any 1480 user data */ 1481 wi->wi_bp.b_flags = 0; 1482 wi->wi_bp.b_data = 0; 1483 wi->wi_bp.b_bcount = 0; 1484 wi->wi_bp.b_dev = 0; 1485 wi->wi_bp.b_proc = l->l_proc; 1486 wdioctlstrategy(&wi->wi_bp); 1487 error1 = wi->wi_bp.b_error; 1488 } 1489 *atareq = wi->wi_atareq; 1490 wi_free(wi); 1491 return(error1); 1492 } 1493 1494 case DIOCAWEDGE: 1495 { 1496 struct dkwedge_info *dkw = (void *) addr; 1497 1498 if ((flag & FWRITE) == 0) 1499 return (EBADF); 1500 1501 /* If the ioctl happens here, the parent is us. */ 1502 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1503 return (dkwedge_add(dkw)); 1504 } 1505 1506 case DIOCDWEDGE: 1507 { 1508 struct dkwedge_info *dkw = (void *) addr; 1509 1510 if ((flag & FWRITE) == 0) 1511 return (EBADF); 1512 1513 /* If the ioctl happens here, the parent is us. */ 1514 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1515 return (dkwedge_del(dkw)); 1516 } 1517 1518 case DIOCLWEDGES: 1519 { 1520 struct dkwedge_list *dkwl = (void *) addr; 1521 1522 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1523 } 1524 1525 case DIOCGSTRATEGY: 1526 { 1527 struct disk_strategy *dks = (void *)addr; 1528 1529 s = splbio(); 1530 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1531 sizeof(dks->dks_name)); 1532 splx(s); 1533 dks->dks_paramlen = 0; 1534 1535 return 0; 1536 } 1537 1538 case DIOCSSTRATEGY: 1539 { 1540 struct disk_strategy *dks = (void *)addr; 1541 struct bufq_state *new; 1542 struct bufq_state *old; 1543 1544 if ((flag & FWRITE) == 0) { 1545 return EBADF; 1546 } 1547 if (dks->dks_param != NULL) { 1548 return EINVAL; 1549 } 1550 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1551 error = bufq_alloc(&new, dks->dks_name, 1552 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1553 if (error) { 1554 return error; 1555 } 1556 s = splbio(); 1557 old = wd->sc_q; 1558 bufq_move(new, old); 1559 wd->sc_q = new; 1560 splx(s); 1561 bufq_free(old); 1562 1563 return 0; 1564 } 1565 1566 default: 1567 return ENOTTY; 1568 } 1569 1570 #ifdef DIAGNOSTIC 1571 panic("wdioctl: impossible"); 1572 #endif 1573 } 1574 1575 #ifdef B_FORMAT 1576 int 1577 wdformat(struct buf *bp) 1578 { 1579 1580 bp->b_flags |= B_FORMAT; 1581 return wdstrategy(bp); 1582 } 1583 #endif 1584 1585 int 1586 wdsize(dev_t dev) 1587 { 1588 struct wd_softc *wd; 1589 int part, omask; 1590 int size; 1591 1592 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1593 1594 wd = device_private(device_lookup(&wd_cd, WDUNIT(dev))); 1595 if (wd == NULL) 1596 return (-1); 1597 1598 part = WDPART(dev); 1599 omask = wd->sc_dk.dk_openmask & (1 << part); 1600 1601 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1602 return (-1); 1603 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1604 size = -1; 1605 else 1606 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1607 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1608 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1609 return (-1); 1610 return (size); 1611 } 1612 1613 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1614 static int wddoingadump = 0; 1615 static int wddumprecalibrated = 0; 1616 1617 /* 1618 * Dump core after a system crash. 1619 */ 1620 int 1621 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1622 { 1623 struct wd_softc *wd; /* disk unit to do the I/O */ 1624 struct disklabel *lp; /* disk's disklabel */ 1625 int part, err; 1626 int nblks; /* total number of sectors left to write */ 1627 1628 /* Check if recursive dump; if so, punt. */ 1629 if (wddoingadump) 1630 return EFAULT; 1631 wddoingadump = 1; 1632 1633 wd = device_private(device_lookup(&wd_cd, WDUNIT(dev))); 1634 if (wd == NULL) 1635 return (ENXIO); 1636 1637 part = WDPART(dev); 1638 1639 /* Convert to disk sectors. Request must be a multiple of size. */ 1640 lp = wd->sc_dk.dk_label; 1641 if ((size % lp->d_secsize) != 0) 1642 return EFAULT; 1643 nblks = size / lp->d_secsize; 1644 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1645 1646 /* Check transfer bounds against partition size. */ 1647 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1648 return EINVAL; 1649 1650 /* Offset block number to start of partition. */ 1651 blkno += lp->d_partitions[part].p_offset; 1652 1653 /* Recalibrate, if first dump transfer. */ 1654 if (wddumprecalibrated == 0) { 1655 wddumprecalibrated = 1; 1656 (*wd->atabus->ata_reset_drive)(wd->drvp, 1657 AT_POLL | AT_RST_EMERG); 1658 wd->drvp->state = RESET; 1659 } 1660 1661 wd->sc_bp = NULL; 1662 wd->sc_wdc_bio.blkno = blkno; 1663 wd->sc_wdc_bio.flags = ATA_POLL; 1664 if (wd->sc_flags & WDF_LBA48 && 1665 (blkno > LBA48_THRESHOLD || 1666 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1667 wd->sc_wdc_bio.flags |= ATA_LBA48; 1668 if (wd->sc_flags & WDF_LBA) 1669 wd->sc_wdc_bio.flags |= ATA_LBA; 1670 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1671 wd->sc_wdc_bio.databuf = va; 1672 #ifndef WD_DUMP_NOT_TRUSTED 1673 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1674 case ATACMD_TRY_AGAIN: 1675 panic("wddump: try again"); 1676 break; 1677 case ATACMD_QUEUED: 1678 panic("wddump: polled command has been queued"); 1679 break; 1680 case ATACMD_COMPLETE: 1681 break; 1682 } 1683 switch(wd->sc_wdc_bio.error) { 1684 case TIMEOUT: 1685 printf("wddump: device timed out"); 1686 err = EIO; 1687 break; 1688 case ERR_DF: 1689 printf("wddump: drive fault"); 1690 err = EIO; 1691 break; 1692 case ERR_DMA: 1693 printf("wddump: DMA error"); 1694 err = EIO; 1695 break; 1696 case ERROR: 1697 printf("wddump: "); 1698 wdperror(wd); 1699 err = EIO; 1700 break; 1701 case NOERROR: 1702 err = 0; 1703 break; 1704 default: 1705 panic("wddump: unknown error type"); 1706 } 1707 if (err != 0) { 1708 printf("\n"); 1709 return err; 1710 } 1711 #else /* WD_DUMP_NOT_TRUSTED */ 1712 /* Let's just talk about this first... */ 1713 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1714 unit, va, cylin, head, sector); 1715 delay(500 * 1000); /* half a second */ 1716 #endif 1717 1718 wddoingadump = 0; 1719 return 0; 1720 } 1721 1722 #ifdef HAS_BAD144_HANDLING 1723 /* 1724 * Internalize the bad sector table. 1725 */ 1726 void 1727 bad144intern(struct wd_softc *wd) 1728 { 1729 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1730 struct disklabel *lp = wd->sc_dk.dk_label; 1731 int i = 0; 1732 1733 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1734 1735 for (; i < NBT_BAD; i++) { 1736 if (bt->bt_bad[i].bt_cyl == 0xffff) 1737 break; 1738 wd->sc_badsect[i] = 1739 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1740 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1741 (bt->bt_bad[i].bt_trksec & 0xff); 1742 } 1743 for (; i < NBT_BAD+1; i++) 1744 wd->sc_badsect[i] = -1; 1745 } 1746 #endif 1747 1748 static void 1749 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1750 { 1751 prop_dictionary_t disk_info, odisk_info, geom; 1752 const char *cp; 1753 1754 disk_info = prop_dictionary_create(); 1755 1756 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1757 cp = "ST506"; 1758 else { 1759 /* XXX Should have a case for ATA here, too. */ 1760 cp = "ESDI"; 1761 } 1762 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1763 1764 geom = prop_dictionary_create(); 1765 1766 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1767 1768 prop_dictionary_set_uint32(geom, "sector-size", 1769 DEV_BSIZE /* XXX 512? */); 1770 1771 prop_dictionary_set_uint16(geom, "sectors-per-track", 1772 wd->sc_params.atap_sectors); 1773 1774 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1775 wd->sc_params.atap_heads); 1776 1777 if (wd->sc_flags & WDF_LBA) 1778 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1779 wd->sc_capacity / 1780 (wd->sc_params.atap_heads * 1781 wd->sc_params.atap_sectors)); 1782 else 1783 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1784 wd->sc_params.atap_cylinders); 1785 1786 prop_dictionary_set(disk_info, "geometry", geom); 1787 prop_object_release(geom); 1788 1789 prop_dictionary_set(device_properties(wd->sc_dev), 1790 "disk-info", disk_info); 1791 1792 /* 1793 * Don't release disk_info here; we keep a reference to it. 1794 * disk_detach() will release it when we go away. 1795 */ 1796 1797 odisk_info = wd->sc_dk.dk_info; 1798 wd->sc_dk.dk_info = disk_info; 1799 if (odisk_info) 1800 prop_object_release(odisk_info); 1801 } 1802 1803 int 1804 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1805 { 1806 1807 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1808 case CMD_AGAIN: 1809 return 1; 1810 case CMD_ERR: 1811 /* 1812 * We `know' there's a drive here; just assume it's old. 1813 * This geometry is only used to read the MBR and print a 1814 * (false) attach message. 1815 */ 1816 strncpy(params->atap_model, "ST506", 1817 sizeof params->atap_model); 1818 params->atap_config = ATA_CFG_FIXED; 1819 params->atap_cylinders = 1024; 1820 params->atap_heads = 8; 1821 params->atap_sectors = 17; 1822 params->atap_multi = 1; 1823 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1824 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1825 /* FALLTHROUGH */ 1826 case CMD_OK: 1827 wd_params_to_properties(wd, params); 1828 return 0; 1829 default: 1830 panic("wd_get_params: bad return code from ata_get_params"); 1831 /* NOTREACHED */ 1832 } 1833 } 1834 1835 int 1836 wd_getcache(struct wd_softc *wd, int *bitsp) 1837 { 1838 struct ataparams params; 1839 1840 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1841 return EIO; 1842 if (params.atap_cmd_set1 == 0x0000 || 1843 params.atap_cmd_set1 == 0xffff || 1844 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1845 *bitsp = 0; 1846 return 0; 1847 } 1848 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1849 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1850 *bitsp |= DKCACHE_WRITE; 1851 1852 return 0; 1853 } 1854 1855 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1856 1857 int 1858 wd_setcache(struct wd_softc *wd, int bits) 1859 { 1860 struct ataparams params; 1861 struct ata_command ata_c; 1862 1863 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1864 return EIO; 1865 1866 if (params.atap_cmd_set1 == 0x0000 || 1867 params.atap_cmd_set1 == 0xffff || 1868 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1869 return EOPNOTSUPP; 1870 1871 if ((bits & DKCACHE_READ) == 0 || 1872 (bits & DKCACHE_SAVE) != 0) 1873 return EOPNOTSUPP; 1874 1875 memset(&ata_c, 0, sizeof(struct ata_command)); 1876 ata_c.r_command = SET_FEATURES; 1877 ata_c.r_st_bmask = 0; 1878 ata_c.r_st_pmask = 0; 1879 ata_c.timeout = 30000; /* 30s timeout */ 1880 ata_c.flags = AT_WAIT; 1881 if (bits & DKCACHE_WRITE) 1882 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1883 else 1884 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1885 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1886 aprint_error_dev(wd->sc_dev, 1887 "wd_setcache command not complete\n"); 1888 return EIO; 1889 } 1890 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1891 char sbuf[sizeof(at_errbits) + 64]; 1892 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1893 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1894 return EIO; 1895 } 1896 return 0; 1897 } 1898 1899 static int 1900 wd_standby(struct wd_softc *wd, int flags) 1901 { 1902 struct ata_command ata_c; 1903 1904 memset(&ata_c, 0, sizeof(struct ata_command)); 1905 ata_c.r_command = WDCC_STANDBY_IMMED; 1906 ata_c.r_st_bmask = WDCS_DRDY; 1907 ata_c.r_st_pmask = WDCS_DRDY; 1908 ata_c.flags = flags; 1909 ata_c.timeout = 30000; /* 30s timeout */ 1910 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1911 aprint_error_dev(wd->sc_dev, 1912 "standby immediate command didn't complete\n"); 1913 return EIO; 1914 } 1915 if (ata_c.flags & AT_ERROR) { 1916 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1917 return ENODEV; 1918 } 1919 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1920 char sbuf[sizeof(at_errbits) + 64]; 1921 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1922 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1923 return EIO; 1924 } 1925 return 0; 1926 } 1927 1928 int 1929 wd_flushcache(struct wd_softc *wd, int flags) 1930 { 1931 struct ata_command ata_c; 1932 1933 /* 1934 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1935 * only ATA-2 and still support it. 1936 */ 1937 if (wd->drvp->ata_vers < 4 && 1938 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1939 wd->sc_params.atap_cmd_set2 == 0xffff)) 1940 return ENODEV; 1941 memset(&ata_c, 0, sizeof(struct ata_command)); 1942 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1943 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1944 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1945 else 1946 ata_c.r_command = WDCC_FLUSHCACHE; 1947 ata_c.r_st_bmask = WDCS_DRDY; 1948 ata_c.r_st_pmask = WDCS_DRDY; 1949 ata_c.flags = flags; 1950 ata_c.timeout = 30000; /* 30s timeout */ 1951 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1952 aprint_error_dev(wd->sc_dev, 1953 "flush cache command didn't complete\n"); 1954 return EIO; 1955 } 1956 if (ata_c.flags & AT_ERROR) { 1957 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1958 return ENODEV; 1959 } 1960 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1961 char sbuf[sizeof(at_errbits) + 64]; 1962 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1963 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1964 sbuf); 1965 return EIO; 1966 } 1967 return 0; 1968 } 1969 1970 bool 1971 wd_shutdown(device_t dev, int how) 1972 { 1973 1974 struct wd_softc *wd = device_private(dev); 1975 wd_flushcache(wd, AT_POLL); 1976 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 1977 wd_standby(wd, AT_POLL); 1978 return true; 1979 } 1980 1981 /* 1982 * Allocate space for a ioctl queue structure. Mostly taken from 1983 * scsipi_ioctl.c 1984 */ 1985 struct wd_ioctl * 1986 wi_get(void) 1987 { 1988 struct wd_ioctl *wi; 1989 int s; 1990 1991 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1992 buf_init(&wi->wi_bp); 1993 s = splbio(); 1994 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1995 splx(s); 1996 return (wi); 1997 } 1998 1999 /* 2000 * Free an ioctl structure and remove it from our list 2001 */ 2002 2003 void 2004 wi_free(struct wd_ioctl *wi) 2005 { 2006 int s; 2007 2008 s = splbio(); 2009 LIST_REMOVE(wi, wi_list); 2010 splx(s); 2011 buf_destroy(&wi->wi_bp); 2012 free(wi, M_TEMP); 2013 } 2014 2015 /* 2016 * Find a wd_ioctl structure based on the struct buf. 2017 */ 2018 2019 struct wd_ioctl * 2020 wi_find(struct buf *bp) 2021 { 2022 struct wd_ioctl *wi; 2023 int s; 2024 2025 s = splbio(); 2026 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 2027 if (bp == &wi->wi_bp) 2028 break; 2029 splx(s); 2030 return (wi); 2031 } 2032 2033 /* 2034 * Ioctl pseudo strategy routine 2035 * 2036 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2037 * happens here is: 2038 * 2039 * - wdioctl() queues a wd_ioctl structure. 2040 * 2041 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2042 * user space I/O is required. If physio() is called, physio() eventually 2043 * calls wdioctlstrategy(). 2044 * 2045 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2046 * to perform the actual command 2047 * 2048 * The reason for the use of the pseudo strategy routine is because 2049 * when doing I/O to/from user space, physio _really_ wants to be in 2050 * the loop. We could put the entire buffer into the ioctl request 2051 * structure, but that won't scale if we want to do things like download 2052 * microcode. 2053 */ 2054 2055 void 2056 wdioctlstrategy(struct buf *bp) 2057 { 2058 struct wd_ioctl *wi; 2059 struct ata_command ata_c; 2060 int error = 0; 2061 2062 wi = wi_find(bp); 2063 if (wi == NULL) { 2064 printf("wdioctlstrategy: " 2065 "No matching ioctl request found in queue\n"); 2066 error = EINVAL; 2067 goto bad; 2068 } 2069 2070 memset(&ata_c, 0, sizeof(ata_c)); 2071 2072 /* 2073 * Abort if physio broke up the transfer 2074 */ 2075 2076 if (bp->b_bcount != wi->wi_atareq.datalen) { 2077 printf("physio split wd ioctl request... cannot proceed\n"); 2078 error = EIO; 2079 goto bad; 2080 } 2081 2082 /* 2083 * Abort if we didn't get a buffer size that was a multiple of 2084 * our sector size (or was larger than NBBY) 2085 */ 2086 2087 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2088 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2089 (1 << NBBY)) { 2090 error = EINVAL; 2091 goto bad; 2092 } 2093 2094 /* 2095 * Make sure a timeout was supplied in the ioctl request 2096 */ 2097 2098 if (wi->wi_atareq.timeout == 0) { 2099 error = EINVAL; 2100 goto bad; 2101 } 2102 2103 if (wi->wi_atareq.flags & ATACMD_READ) 2104 ata_c.flags |= AT_READ; 2105 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2106 ata_c.flags |= AT_WRITE; 2107 2108 if (wi->wi_atareq.flags & ATACMD_READREG) 2109 ata_c.flags |= AT_READREG; 2110 2111 ata_c.flags |= AT_WAIT; 2112 2113 ata_c.timeout = wi->wi_atareq.timeout; 2114 ata_c.r_command = wi->wi_atareq.command; 2115 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2116 ata_c.r_cyl = wi->wi_atareq.cylinder; 2117 ata_c.r_sector = wi->wi_atareq.sec_num; 2118 ata_c.r_count = wi->wi_atareq.sec_count; 2119 ata_c.r_features = wi->wi_atareq.features; 2120 ata_c.r_st_bmask = WDCS_DRDY; 2121 ata_c.r_st_pmask = WDCS_DRDY; 2122 ata_c.data = wi->wi_bp.b_data; 2123 ata_c.bcount = wi->wi_bp.b_bcount; 2124 2125 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2126 != ATACMD_COMPLETE) { 2127 wi->wi_atareq.retsts = ATACMD_ERROR; 2128 goto bad; 2129 } 2130 2131 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2132 if (ata_c.flags & AT_ERROR) { 2133 wi->wi_atareq.retsts = ATACMD_ERROR; 2134 wi->wi_atareq.error = ata_c.r_error; 2135 } else if (ata_c.flags & AT_DF) 2136 wi->wi_atareq.retsts = ATACMD_DF; 2137 else 2138 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2139 } else { 2140 wi->wi_atareq.retsts = ATACMD_OK; 2141 if (wi->wi_atareq.flags & ATACMD_READREG) { 2142 wi->wi_atareq.head = ata_c.r_head ; 2143 wi->wi_atareq.cylinder = ata_c.r_cyl; 2144 wi->wi_atareq.sec_num = ata_c.r_sector; 2145 wi->wi_atareq.sec_count = ata_c.r_count; 2146 wi->wi_atareq.features = ata_c.r_features; 2147 wi->wi_atareq.error = ata_c.r_error; 2148 } 2149 } 2150 2151 bp->b_error = 0; 2152 biodone(bp); 2153 return; 2154 bad: 2155 bp->b_error = error; 2156 biodone(bp); 2157 } 2158
Indexes created Mon Oct 20 20:10:13 GMT 2025