wd.c revision 1.309
1 /* $NetBSD: wd.c,v 1.309 2005/09/05 20:42:37 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 * 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 1.309 2005/09/05 20:42:37 bouyer Exp $"); 70 71 #ifndef ATADEBUG 72 #define ATADEBUG 73 #endif /* ATADEBUG */ 74 75 #include "rnd.h" 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/kernel.h> 80 #include <sys/conf.h> 81 #include <sys/file.h> 82 #include <sys/stat.h> 83 #include <sys/ioctl.h> 84 #include <sys/buf.h> 85 #include <sys/bufq.h> 86 #include <sys/uio.h> 87 #include <sys/malloc.h> 88 #include <sys/device.h> 89 #include <sys/disklabel.h> 90 #include <sys/disk.h> 91 #include <sys/syslog.h> 92 #include <sys/proc.h> 93 #include <sys/vnode.h> 94 #if NRND > 0 95 #include <sys/rnd.h> 96 #endif 97 98 #include <machine/intr.h> 99 #include <machine/bus.h> 100 101 #include <dev/ata/atareg.h> 102 #include <dev/ata/atavar.h> 103 #include <dev/ata/wdvar.h> 104 #include <dev/ic/wdcreg.h> 105 #include <sys/ataio.h> 106 #include "locators.h" 107 108 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 109 110 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 111 #define WDIORETRIES 5 /* number of retries before giving up */ 112 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 113 114 #define WDUNIT(dev) DISKUNIT(dev) 115 #define WDPART(dev) DISKPART(dev) 116 #define WDMINOR(unit, part) DISKMINOR(unit, part) 117 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 118 119 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 120 121 #define DEBUG_INTR 0x01 122 #define DEBUG_XFERS 0x02 123 #define DEBUG_STATUS 0x04 124 #define DEBUG_FUNCS 0x08 125 #define DEBUG_PROBE 0x10 126 #ifdef ATADEBUG 127 int wdcdebug_wd_mask = 0x0; 128 #define ATADEBUG_PRINT(args, level) \ 129 if (wdcdebug_wd_mask & (level)) \ 130 printf args 131 #else 132 #define ATADEBUG_PRINT(args, level) 133 #endif 134 135 int wdprobe(struct device *, struct cfdata *, void *); 136 void wdattach(struct device *, struct device *, void *); 137 int wddetach(struct device *, int); 138 int wdactivate(struct device *, enum devact); 139 int wdprint(void *, char *); 140 void wdperror(const struct wd_softc *); 141 142 CFATTACH_DECL(wd, sizeof(struct wd_softc), 143 wdprobe, wdattach, wddetach, wdactivate); 144 145 extern struct cfdriver wd_cd; 146 147 dev_type_open(wdopen); 148 dev_type_close(wdclose); 149 dev_type_read(wdread); 150 dev_type_write(wdwrite); 151 dev_type_ioctl(wdioctl); 152 dev_type_strategy(wdstrategy); 153 dev_type_dump(wddump); 154 dev_type_size(wdsize); 155 156 const struct bdevsw wd_bdevsw = { 157 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 158 }; 159 160 const struct cdevsw wd_cdevsw = { 161 wdopen, wdclose, wdread, wdwrite, wdioctl, 162 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 163 }; 164 165 /* 166 * Glue necessary to hook WDCIOCCOMMAND into physio 167 */ 168 169 struct wd_ioctl { 170 LIST_ENTRY(wd_ioctl) wi_list; 171 struct buf wi_bp; 172 struct uio wi_uio; 173 struct iovec wi_iov; 174 atareq_t wi_atareq; 175 struct wd_softc *wi_softc; 176 }; 177 178 LIST_HEAD(, wd_ioctl) wi_head; 179 180 struct wd_ioctl *wi_find(struct buf *); 181 void wi_free(struct wd_ioctl *); 182 struct wd_ioctl *wi_get(void); 183 void wdioctlstrategy(struct buf *); 184 185 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 186 void wdgetdisklabel(struct wd_softc *); 187 void wdstart(void *); 188 void __wdstart(struct wd_softc*, struct buf *); 189 void wdrestart(void *); 190 void wddone(void *); 191 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 192 int wd_standby(struct wd_softc *, int); 193 int wd_flushcache(struct wd_softc *, int); 194 void wd_shutdown(void *); 195 196 int wd_getcache(struct wd_softc *, int *); 197 int wd_setcache(struct wd_softc *, int); 198 199 struct dkdriver wddkdriver = { wdstrategy, minphys }; 200 201 #ifdef HAS_BAD144_HANDLING 202 static void bad144intern(struct wd_softc *); 203 #endif 204 205 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 206 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 207 208 /* 209 * Quirk table for IDE drives. Put more-specific matches first, since 210 * a simple globbing routine is used for matching. 211 */ 212 static const struct wd_quirk { 213 const char *wdq_match; /* inquiry pattern to match */ 214 int wdq_quirks; /* drive quirks */ 215 } wd_quirk_table[] = { 216 /* 217 * Some Seagate S-ATA drives have a PHY which can get confused 218 * with the way data is packetized by some S-ATA controllers. 219 * 220 * The work-around is to split in two any write transfer whose 221 * sector count % 15 == 1 (assuming 512 byte sectors). 222 * 223 * XXX This is an incomplete list. There are at least a couple 224 * XXX more model numbers. If you have trouble with such transfers 225 * XXX (8K is the most common) on Seagate S-ATA drives, please 226 * XXX notify thorpej (at) NetBSD.org. 227 */ 228 { "ST3120023AS", 229 WD_QUIRK_SPLIT_MOD15_WRITE }, 230 { "ST380023AS", 231 WD_QUIRK_SPLIT_MOD15_WRITE }, 232 233 /* 234 * These seagate drives seems to have issue addressing sector 0xfffffff 235 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 236 * LBA48 237 * Note that we can't just change the code to always use LBA48 for 238 * sector 0xfffffff, because this would break valid and working 239 * setups using LBA48 drives on non-LBA48-capable controllers 240 * (and it's hard to get a list of such controllers) 241 */ 242 { "ST3160023A*", 243 WD_QUIRK_FORCE_LBA48 }, 244 { "ST3160827A*", 245 WD_QUIRK_FORCE_LBA48 }, 246 { "ST3200822A*", 247 WD_QUIRK_FORCE_LBA48 }, 248 { "ST3250823A*", 249 WD_QUIRK_FORCE_LBA48 }, 250 { "ST3200826A*", 251 WD_QUIRK_FORCE_LBA48 }, 252 { "ST3300831A*", 253 WD_QUIRK_FORCE_LBA48 }, 254 255 { NULL, 256 0 } 257 }; 258 259 static const struct wd_quirk * 260 wd_lookup_quirks(const char *name) 261 { 262 const struct wd_quirk *wdq; 263 const char *estr; 264 265 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 266 /* 267 * We only want exact matches (which include matches 268 * against globbing characters). 269 */ 270 if (pmatch(name, wdq->wdq_match, &estr) == 2) 271 return (wdq); 272 } 273 return (NULL); 274 } 275 276 int 277 wdprobe(struct device *parent, struct cfdata *match, void *aux) 278 { 279 struct ata_device *adev = aux; 280 281 if (adev == NULL) 282 return 0; 283 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 284 return 0; 285 286 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 287 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 288 return 0; 289 return 1; 290 } 291 292 void 293 wdattach(struct device *parent, struct device *self, void *aux) 294 { 295 struct wd_softc *wd = (void *)self; 296 struct ata_device *adev= aux; 297 int i, blank; 298 char tbuf[41], pbuf[9], c, *p, *q; 299 const struct wd_quirk *wdq; 300 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 301 302 callout_init(&wd->sc_restart_ch); 303 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT()|BUFQ_SORT_RAWBLOCK); 304 #ifdef WD_SOFTBADSECT 305 SLIST_INIT(&wd->sc_bslist); 306 #endif 307 wd->atabus = adev->adev_bustype; 308 wd->openings = adev->adev_openings; 309 wd->drvp = adev->adev_drv_data; 310 311 wd->drvp->drv_done = wddone; 312 wd->drvp->drv_softc = &wd->sc_dev; 313 314 aprint_naive("\n"); 315 316 /* read our drive info */ 317 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 318 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 319 return; 320 } 321 322 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 323 i < sizeof(wd->sc_params.atap_model); i++) { 324 c = *p++; 325 if (c == '\0') 326 break; 327 if (c != ' ') { 328 if (blank) { 329 *q++ = ' '; 330 blank = 0; 331 } 332 *q++ = c; 333 } else 334 blank = 1; 335 } 336 *q++ = '\0'; 337 338 aprint_normal(": <%s>\n", tbuf); 339 340 wdq = wd_lookup_quirks(tbuf); 341 if (wdq != NULL) 342 wd->sc_quirks = wdq->wdq_quirks; 343 344 if ((wd->sc_params.atap_multi & 0xff) > 1) { 345 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 346 } else { 347 wd->sc_multi = 1; 348 } 349 350 aprint_normal("%s: drive supports %d-sector PIO transfers,", 351 wd->sc_dev.dv_xname, wd->sc_multi); 352 353 /* 48-bit LBA addressing */ 354 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 355 wd->sc_flags |= WDF_LBA48; 356 357 /* Prior to ATA-4, LBA was optional. */ 358 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 359 wd->sc_flags |= WDF_LBA; 360 #if 0 361 /* ATA-4 requires LBA. */ 362 if (wd->sc_params.atap_ataversion != 0xffff && 363 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 364 wd->sc_flags |= WDF_LBA; 365 #endif 366 367 if ((wd->sc_flags & WDF_LBA48) != 0) { 368 aprint_normal(" LBA48 addressing\n"); 369 wd->sc_capacity = 370 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 371 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 372 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 373 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 374 } else if ((wd->sc_flags & WDF_LBA) != 0) { 375 aprint_normal(" LBA addressing\n"); 376 wd->sc_capacity = 377 (wd->sc_params.atap_capacity[1] << 16) | 378 wd->sc_params.atap_capacity[0]; 379 } else { 380 aprint_normal(" chs addressing\n"); 381 wd->sc_capacity = 382 wd->sc_params.atap_cylinders * 383 wd->sc_params.atap_heads * 384 wd->sc_params.atap_sectors; 385 } 386 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 387 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 388 "%d bytes/sect x %llu sectors\n", 389 self->dv_xname, pbuf, 390 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 391 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 392 wd->sc_params.atap_cylinders, 393 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 394 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 395 396 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 397 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 398 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 399 /* 400 * Initialize and attach the disk structure. 401 */ 402 wd->sc_dk.dk_driver = &wddkdriver; 403 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 404 disk_attach(&wd->sc_dk); 405 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 406 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 407 if (wd->sc_sdhook == NULL) 408 aprint_error("%s: WARNING: unable to establish shutdown hook\n", 409 wd->sc_dev.dv_xname); 410 #if NRND > 0 411 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 412 RND_TYPE_DISK, 0); 413 #endif 414 415 /* Discover wedges on this disk. */ 416 dkwedge_discover(&wd->sc_dk); 417 } 418 419 int 420 wdactivate(struct device *self, enum devact act) 421 { 422 int rv = 0; 423 424 switch (act) { 425 case DVACT_ACTIVATE: 426 rv = EOPNOTSUPP; 427 break; 428 429 case DVACT_DEACTIVATE: 430 /* 431 * Nothing to do; we key off the device's DVF_ACTIVATE. 432 */ 433 break; 434 } 435 return (rv); 436 } 437 438 int 439 wddetach(struct device *self, int flags) 440 { 441 struct wd_softc *sc = (struct wd_softc *)self; 442 int s, bmaj, cmaj, i, mn; 443 444 /* locate the major number */ 445 bmaj = bdevsw_lookup_major(&wd_bdevsw); 446 cmaj = cdevsw_lookup_major(&wd_cdevsw); 447 448 /* Nuke the vnodes for any open instances. */ 449 for (i = 0; i < MAXPARTITIONS; i++) { 450 mn = WDMINOR(self->dv_unit, i); 451 vdevgone(bmaj, mn, mn, VBLK); 452 vdevgone(cmaj, mn, mn, VCHR); 453 } 454 455 /* Delete all of our wedges. */ 456 dkwedge_delall(&sc->sc_dk); 457 458 s = splbio(); 459 460 /* Kill off any queued buffers. */ 461 bufq_drain(&sc->sc_q); 462 463 bufq_free(&sc->sc_q); 464 sc->atabus->ata_killpending(sc->drvp); 465 466 splx(s); 467 468 /* Detach disk. */ 469 disk_detach(&sc->sc_dk); 470 471 #ifdef WD_SOFTBADSECT 472 /* Clean out the bad sector list */ 473 while (!SLIST_EMPTY(&sc->sc_bslist)) { 474 void *head = SLIST_FIRST(&sc->sc_bslist); 475 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 476 free(head, M_TEMP); 477 } 478 sc->sc_bscount = 0; 479 #endif 480 481 /* Get rid of the shutdown hook. */ 482 if (sc->sc_sdhook != NULL) 483 shutdownhook_disestablish(sc->sc_sdhook); 484 485 #if NRND > 0 486 /* Unhook the entropy source. */ 487 rnd_detach_source(&sc->rnd_source); 488 #endif 489 490 sc->drvp->drive_flags = 0; /* no drive any more here */ 491 492 return (0); 493 } 494 495 /* 496 * Read/write routine for a buffer. Validates the arguments and schedules the 497 * transfer. Does not wait for the transfer to complete. 498 */ 499 void 500 wdstrategy(struct buf *bp) 501 { 502 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 503 struct disklabel *lp = wd->sc_dk.dk_label; 504 daddr_t blkno; 505 int s; 506 507 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 508 DEBUG_XFERS); 509 510 /* Valid request? */ 511 if (bp->b_blkno < 0 || 512 (bp->b_bcount % lp->d_secsize) != 0 || 513 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 514 bp->b_error = EINVAL; 515 goto bad; 516 } 517 518 /* If device invalidated (e.g. media change, door open), error. */ 519 if ((wd->sc_flags & WDF_LOADED) == 0) { 520 bp->b_error = EIO; 521 goto bad; 522 } 523 524 /* If it's a null transfer, return immediately. */ 525 if (bp->b_bcount == 0) 526 goto done; 527 528 /* 529 * Do bounds checking, adjust transfer. if error, process. 530 * If end of partition, just return. 531 */ 532 if (WDPART(bp->b_dev) == RAW_PART) { 533 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 534 wd->sc_capacity) <= 0) 535 goto done; 536 } else { 537 if (bounds_check_with_label(&wd->sc_dk, bp, 538 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 539 goto done; 540 } 541 542 /* 543 * Now convert the block number to absolute and put it in 544 * terms of the device's logical block size. 545 */ 546 if (lp->d_secsize >= DEV_BSIZE) 547 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 548 else 549 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 550 551 if (WDPART(bp->b_dev) != RAW_PART) 552 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 553 554 bp->b_rawblkno = blkno; 555 556 #ifdef WD_SOFTBADSECT 557 /* 558 * If the transfer about to be attempted contains only a block that 559 * is known to be bad then return an error for the transfer without 560 * even attempting to start a transfer up under the premis that we 561 * will just end up doing more retries for a transfer that will end 562 * up failing again. 563 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 564 */ 565 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 566 struct disk_badsectors *dbs; 567 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 568 569 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 570 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 571 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 572 bp->b_error = EIO; 573 goto bad; 574 } 575 } 576 #endif 577 578 /* Queue transfer on drive, activate drive and controller if idle. */ 579 s = splbio(); 580 BUFQ_PUT(&wd->sc_q, bp); 581 wdstart(wd); 582 splx(s); 583 return; 584 bad: 585 bp->b_flags |= B_ERROR; 586 done: 587 /* Toss transfer; we're done early. */ 588 bp->b_resid = bp->b_bcount; 589 biodone(bp); 590 } 591 592 /* 593 * Queue a drive for I/O. 594 */ 595 void 596 wdstart(void *arg) 597 { 598 struct wd_softc *wd = arg; 599 struct buf *bp = NULL; 600 601 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 602 DEBUG_XFERS); 603 while (wd->openings > 0) { 604 605 /* Is there a buf for us ? */ 606 if ((bp = BUFQ_GET(&wd->sc_q)) == NULL) 607 return; 608 609 /* 610 * Make the command. First lock the device 611 */ 612 wd->openings--; 613 614 wd->retries = 0; 615 __wdstart(wd, bp); 616 } 617 } 618 619 static void 620 wd_split_mod15_write(struct buf *bp) 621 { 622 struct buf *obp = bp->b_private; 623 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 624 625 if (__predict_false(bp->b_flags & B_ERROR) != 0) { 626 /* 627 * Propagate the error. If this was the first half of 628 * the original transfer, make sure to account for that 629 * in the residual. 630 */ 631 if (bp->b_data == obp->b_data) 632 bp->b_resid += bp->b_bcount; 633 goto done; 634 } 635 636 /* 637 * If this was the second half of the transfer, we're all done! 638 */ 639 if (bp->b_data != obp->b_data) 640 goto done; 641 642 /* 643 * Advance the pointer to the second half and issue that command 644 * using the same opening. 645 */ 646 bp->b_flags = obp->b_flags | B_CALL; 647 bp->b_data += bp->b_bcount; 648 bp->b_blkno += (bp->b_bcount / 512); 649 bp->b_rawblkno += (bp->b_bcount / 512); 650 __wdstart(sc, bp); 651 return; 652 653 done: 654 obp->b_flags |= (bp->b_flags & (B_EINTR|B_ERROR)); 655 obp->b_error = bp->b_error; 656 obp->b_resid = bp->b_resid; 657 pool_put(&bufpool, bp); 658 biodone(obp); 659 sc->openings++; 660 /* wddone() will call wdstart() */ 661 } 662 663 void 664 __wdstart(struct wd_softc *wd, struct buf *bp) 665 { 666 667 /* 668 * Deal with the "split mod15 write" quirk. We just divide the 669 * transfer in two, doing the first half and then then second half 670 * with the same command opening. 671 * 672 * Note we MUST do this here, because we can't let insertion 673 * into the bufq cause the transfers to be re-merged. 674 */ 675 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 676 (bp->b_flags & B_READ) == 0 && 677 bp->b_bcount > 512 && 678 ((bp->b_bcount / 512) % 15) == 1)) { 679 struct buf *nbp; 680 681 /* already at splbio */ 682 nbp = pool_get(&bufpool, PR_NOWAIT); 683 if (__predict_false(nbp == NULL)) { 684 /* No memory -- fail the iop. */ 685 bp->b_error = ENOMEM; 686 bp->b_flags |= B_ERROR; 687 bp->b_resid = bp->b_bcount; 688 biodone(bp); 689 wd->openings++; 690 return; 691 } 692 693 BUF_INIT(nbp); 694 nbp->b_error = 0; 695 nbp->b_proc = bp->b_proc; 696 nbp->b_vp = NULLVP; 697 nbp->b_dev = bp->b_dev; 698 699 nbp->b_bcount = bp->b_bcount / 2; 700 nbp->b_bufsize = bp->b_bcount / 2; 701 nbp->b_data = bp->b_data; 702 703 nbp->b_blkno = bp->b_blkno; 704 nbp->b_rawblkno = bp->b_rawblkno; 705 706 nbp->b_flags = bp->b_flags | B_CALL; 707 nbp->b_iodone = wd_split_mod15_write; 708 709 /* Put ptr to orig buf in b_private and use new buf */ 710 nbp->b_private = bp; 711 712 BIO_COPYPRIO(nbp, bp); 713 714 bp = nbp; 715 } 716 717 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 718 wd->sc_wdc_bio.blkdone =0; 719 wd->sc_bp = bp; 720 /* 721 * If we're retrying, retry in single-sector mode. This will give us 722 * the sector number of the problem, and will eventually allow the 723 * transfer to succeed. 724 */ 725 if (wd->retries >= WDIORETRIES_SINGLE) 726 wd->sc_wdc_bio.flags = ATA_SINGLE; 727 else 728 wd->sc_wdc_bio.flags = 0; 729 if (wd->sc_flags & WDF_LBA48 && 730 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 731 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 732 wd->sc_wdc_bio.flags |= ATA_LBA48; 733 if (wd->sc_flags & WDF_LBA) 734 wd->sc_wdc_bio.flags |= ATA_LBA; 735 if (bp->b_flags & B_READ) 736 wd->sc_wdc_bio.flags |= ATA_READ; 737 wd->sc_wdc_bio.bcount = bp->b_bcount; 738 wd->sc_wdc_bio.databuf = bp->b_data; 739 /* Instrumentation. */ 740 disk_busy(&wd->sc_dk); 741 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 742 case ATACMD_TRY_AGAIN: 743 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 744 break; 745 case ATACMD_QUEUED: 746 case ATACMD_COMPLETE: 747 break; 748 default: 749 panic("__wdstart: bad return code from ata_bio()"); 750 } 751 } 752 753 void 754 wddone(void *v) 755 { 756 struct wd_softc *wd = v; 757 struct buf *bp = wd->sc_bp; 758 const char *errmsg; 759 int do_perror = 0; 760 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 761 DEBUG_XFERS); 762 763 if (bp == NULL) 764 return; 765 bp->b_resid = wd->sc_wdc_bio.bcount; 766 switch (wd->sc_wdc_bio.error) { 767 case ERR_DMA: 768 errmsg = "DMA error"; 769 goto retry; 770 case ERR_DF: 771 errmsg = "device fault"; 772 goto retry; 773 case TIMEOUT: 774 errmsg = "device timeout"; 775 goto retry; 776 case ERR_RESET: 777 errmsg = "channel reset"; 778 goto retry2; 779 case ERROR: 780 /* Don't care about media change bits */ 781 if (wd->sc_wdc_bio.r_error != 0 && 782 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 783 goto noerror; 784 errmsg = "error"; 785 do_perror = 1; 786 retry: /* Just reset and retry. Can we do more ? */ 787 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 788 retry2: 789 diskerr(bp, "wd", errmsg, LOG_PRINTF, 790 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 791 if (wd->retries < WDIORETRIES) 792 printf(", retrying\n"); 793 if (do_perror) 794 wdperror(wd); 795 if (wd->retries < WDIORETRIES) { 796 wd->retries++; 797 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 798 wdrestart, wd); 799 return; 800 } 801 printf("\n"); 802 803 #ifdef WD_SOFTBADSECT 804 /* 805 * Not all errors indicate a failed block but those that do, 806 * put the block on the bad-block list for the device. Only 807 * do this for reads because the drive should do it for writes, 808 * itself, according to Manuel. 809 */ 810 if ((bp->b_flags & B_READ) && 811 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 812 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 813 struct disk_badsectors *dbs; 814 815 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 816 dbs->dbs_min = bp->b_rawblkno; 817 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 818 microtime(&dbs->dbs_failedat); 819 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 820 wd->sc_bscount++; 821 } 822 #endif 823 bp->b_flags |= B_ERROR; 824 bp->b_error = EIO; 825 break; 826 case NOERROR: 827 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 828 printf("%s: soft error (corrected)\n", 829 wd->sc_dev.dv_xname); 830 break; 831 case ERR_NODEV: 832 bp->b_flags |= B_ERROR; 833 bp->b_error = EIO; 834 break; 835 } 836 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 837 (bp->b_flags & B_READ)); 838 #if NRND > 0 839 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 840 #endif 841 /* XXX Yuck, but we don't want to increment openings in this case */ 842 if (__predict_false((bp->b_flags & B_CALL) != 0 && 843 bp->b_iodone == wd_split_mod15_write)) 844 biodone(bp); 845 else { 846 biodone(bp); 847 wd->openings++; 848 } 849 wdstart(wd); 850 } 851 852 void 853 wdrestart(void *v) 854 { 855 struct wd_softc *wd = v; 856 struct buf *bp = wd->sc_bp; 857 int s; 858 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 859 DEBUG_XFERS); 860 861 s = splbio(); 862 __wdstart(v, bp); 863 splx(s); 864 } 865 866 int 867 wdread(dev_t dev, struct uio *uio, int flags) 868 { 869 870 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 871 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 872 } 873 874 int 875 wdwrite(dev_t dev, struct uio *uio, int flags) 876 { 877 878 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 879 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 880 } 881 882 int 883 wdopen(dev_t dev, int flag, int fmt, struct proc *p) 884 { 885 struct wd_softc *wd; 886 int part, error; 887 888 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 889 wd = device_lookup(&wd_cd, WDUNIT(dev)); 890 if (wd == NULL) 891 return (ENXIO); 892 893 if ((wd->sc_dev.dv_flags & DVF_ACTIVE) == 0) 894 return (ENODEV); 895 896 part = WDPART(dev); 897 898 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, NULL)) != 0) 899 return (error); 900 901 /* 902 * If there are wedges, and this is not RAW_PART, then we 903 * need to fail. 904 */ 905 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 906 error = EBUSY; 907 goto bad1; 908 } 909 910 /* 911 * If this is the first open of this device, add a reference 912 * to the adapter. 913 */ 914 if (wd->sc_dk.dk_openmask == 0 && 915 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 916 goto bad1; 917 918 if (wd->sc_dk.dk_openmask != 0) { 919 /* 920 * If any partition is open, but the disk has been invalidated, 921 * disallow further opens. 922 */ 923 if ((wd->sc_flags & WDF_LOADED) == 0) { 924 error = EIO; 925 goto bad2; 926 } 927 } else { 928 if ((wd->sc_flags & WDF_LOADED) == 0) { 929 wd->sc_flags |= WDF_LOADED; 930 931 /* Load the physical device parameters. */ 932 wd_get_params(wd, AT_WAIT, &wd->sc_params); 933 934 /* Load the partition info if not already loaded. */ 935 wdgetdisklabel(wd); 936 } 937 } 938 939 /* Check that the partition exists. */ 940 if (part != RAW_PART && 941 (part >= wd->sc_dk.dk_label->d_npartitions || 942 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 943 error = ENXIO; 944 goto bad2; 945 } 946 947 /* Insure only one open at a time. */ 948 switch (fmt) { 949 case S_IFCHR: 950 wd->sc_dk.dk_copenmask |= (1 << part); 951 break; 952 case S_IFBLK: 953 wd->sc_dk.dk_bopenmask |= (1 << part); 954 break; 955 } 956 wd->sc_dk.dk_openmask = 957 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 958 959 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 960 return 0; 961 962 bad2: 963 if (wd->sc_dk.dk_openmask == 0) 964 wd->atabus->ata_delref(wd->drvp); 965 bad1: 966 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 967 return error; 968 } 969 970 int 971 wdclose(dev_t dev, int flag, int fmt, struct proc *p) 972 { 973 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 974 int part = WDPART(dev); 975 int error; 976 977 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 978 979 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, NULL)) != 0) 980 return error; 981 982 switch (fmt) { 983 case S_IFCHR: 984 wd->sc_dk.dk_copenmask &= ~(1 << part); 985 break; 986 case S_IFBLK: 987 wd->sc_dk.dk_bopenmask &= ~(1 << part); 988 break; 989 } 990 wd->sc_dk.dk_openmask = 991 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 992 993 if (wd->sc_dk.dk_openmask == 0) { 994 wd_flushcache(wd, AT_WAIT); 995 996 if (! (wd->sc_flags & WDF_KLABEL)) 997 wd->sc_flags &= ~WDF_LOADED; 998 999 wd->atabus->ata_delref(wd->drvp); 1000 } 1001 1002 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 1003 return 0; 1004 } 1005 1006 void 1007 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1008 { 1009 1010 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1011 memset(lp, 0, sizeof(struct disklabel)); 1012 1013 lp->d_secsize = DEV_BSIZE; 1014 lp->d_ntracks = wd->sc_params.atap_heads; 1015 lp->d_nsectors = wd->sc_params.atap_sectors; 1016 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1017 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1018 wd->sc_params.atap_cylinders; 1019 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1020 1021 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1022 lp->d_type = DTYPE_ST506; 1023 else 1024 lp->d_type = DTYPE_ESDI; 1025 1026 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1027 strncpy(lp->d_packname, "fictitious", 16); 1028 if (wd->sc_capacity > UINT32_MAX) 1029 lp->d_secperunit = UINT32_MAX; 1030 else 1031 lp->d_secperunit = wd->sc_capacity; 1032 lp->d_rpm = 3600; 1033 lp->d_interleave = 1; 1034 lp->d_flags = 0; 1035 1036 lp->d_partitions[RAW_PART].p_offset = 0; 1037 lp->d_partitions[RAW_PART].p_size = 1038 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1039 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1040 lp->d_npartitions = RAW_PART + 1; 1041 1042 lp->d_magic = DISKMAGIC; 1043 lp->d_magic2 = DISKMAGIC; 1044 lp->d_checksum = dkcksum(lp); 1045 } 1046 1047 /* 1048 * Fabricate a default disk label, and try to read the correct one. 1049 */ 1050 void 1051 wdgetdisklabel(struct wd_softc *wd) 1052 { 1053 struct disklabel *lp = wd->sc_dk.dk_label; 1054 const char *errstring; 1055 int s; 1056 1057 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1058 1059 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1060 1061 wdgetdefaultlabel(wd, lp); 1062 1063 wd->sc_badsect[0] = -1; 1064 1065 if (wd->drvp->state > RESET) { 1066 s = splbio(); 1067 wd->drvp->drive_flags |= DRIVE_RESET; 1068 splx(s); 1069 } 1070 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART), 1071 wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1072 if (errstring) { 1073 /* 1074 * This probably happened because the drive's default 1075 * geometry doesn't match the DOS geometry. We 1076 * assume the DOS geometry is now in the label and try 1077 * again. XXX This is a kluge. 1078 */ 1079 if (wd->drvp->state > RESET) { 1080 s = splbio(); 1081 wd->drvp->drive_flags |= DRIVE_RESET; 1082 splx(s); 1083 } 1084 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, 1085 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1086 } 1087 if (errstring) { 1088 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1089 return; 1090 } 1091 1092 if (wd->drvp->state > RESET) { 1093 s = splbio(); 1094 wd->drvp->drive_flags |= DRIVE_RESET; 1095 splx(s); 1096 } 1097 #ifdef HAS_BAD144_HANDLING 1098 if ((lp->d_flags & D_BADSECT) != 0) 1099 bad144intern(wd); 1100 #endif 1101 } 1102 1103 void 1104 wdperror(const struct wd_softc *wd) 1105 { 1106 static const char *const errstr0_3[] = {"address mark not found", 1107 "track 0 not found", "aborted command", "media change requested", 1108 "id not found", "media changed", "uncorrectable data error", 1109 "bad block detected"}; 1110 static const char *const errstr4_5[] = { 1111 "obsolete (address mark not found)", 1112 "no media/write protected", "aborted command", 1113 "media change requested", "id not found", "media changed", 1114 "uncorrectable data error", "interface CRC error"}; 1115 const char *const *errstr; 1116 int i; 1117 const char *sep = ""; 1118 1119 const char *devname = wd->sc_dev.dv_xname; 1120 struct ata_drive_datas *drvp = wd->drvp; 1121 int errno = wd->sc_wdc_bio.r_error; 1122 1123 if (drvp->ata_vers >= 4) 1124 errstr = errstr4_5; 1125 else 1126 errstr = errstr0_3; 1127 1128 printf("%s: (", devname); 1129 1130 if (errno == 0) 1131 printf("error not notified"); 1132 1133 for (i = 0; i < 8; i++) { 1134 if (errno & (1 << i)) { 1135 printf("%s%s", sep, errstr[i]); 1136 sep = ", "; 1137 } 1138 } 1139 printf(")\n"); 1140 } 1141 1142 int 1143 wdioctl(dev_t dev, u_long xfer, caddr_t addr, int flag, struct proc *p) 1144 { 1145 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1146 int error = 0, s; 1147 #ifdef __HAVE_OLD_DISKLABEL 1148 struct disklabel *newlabel = NULL; 1149 #endif 1150 1151 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1152 1153 if ((wd->sc_flags & WDF_LOADED) == 0) 1154 return EIO; 1155 1156 switch (xfer) { 1157 #ifdef HAS_BAD144_HANDLING 1158 case DIOCSBAD: 1159 if ((flag & FWRITE) == 0) 1160 return EBADF; 1161 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1162 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1163 bad144intern(wd); 1164 return 0; 1165 #endif 1166 #ifdef WD_SOFTBADSECT 1167 case DIOCBSLIST : 1168 { 1169 u_int32_t count, missing, skip; 1170 struct disk_badsecinfo dbsi; 1171 struct disk_badsectors *dbs; 1172 size_t available; 1173 caddr_t laddr; 1174 1175 dbsi = *(struct disk_badsecinfo *)addr; 1176 missing = wd->sc_bscount; 1177 count = 0; 1178 available = dbsi.dbsi_bufsize; 1179 skip = dbsi.dbsi_skip; 1180 laddr = dbsi.dbsi_buffer; 1181 1182 /* 1183 * We start this loop with the expectation that all of the 1184 * entries will be missed and decrement this counter each 1185 * time we either skip over one (already copied out) or 1186 * we actually copy it back to user space. The structs 1187 * holding the bad sector information are copied directly 1188 * back to user space whilst the summary is returned via 1189 * the struct passed in via the ioctl. 1190 */ 1191 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1192 if (skip > 0) { 1193 missing--; 1194 skip--; 1195 continue; 1196 } 1197 if (available < sizeof(*dbs)) 1198 break; 1199 available -= sizeof(*dbs); 1200 copyout(dbs, laddr, sizeof(*dbs)); 1201 laddr += sizeof(*dbs); 1202 missing--; 1203 count++; 1204 } 1205 dbsi.dbsi_left = missing; 1206 dbsi.dbsi_copied = count; 1207 *(struct disk_badsecinfo *)addr = dbsi; 1208 return 0; 1209 } 1210 1211 case DIOCBSFLUSH : 1212 /* Clean out the bad sector list */ 1213 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1214 void *head = SLIST_FIRST(&wd->sc_bslist); 1215 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1216 free(head, M_TEMP); 1217 } 1218 wd->sc_bscount = 0; 1219 return 0; 1220 #endif 1221 case DIOCGDINFO: 1222 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1223 return 0; 1224 #ifdef __HAVE_OLD_DISKLABEL 1225 case ODIOCGDINFO: 1226 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1227 if (newlabel == NULL) 1228 return EIO; 1229 *newlabel = *(wd->sc_dk.dk_label); 1230 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1231 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1232 else 1233 error = ENOTTY; 1234 free(newlabel, M_TEMP); 1235 return error; 1236 #endif 1237 1238 case DIOCGPART: 1239 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1240 ((struct partinfo *)addr)->part = 1241 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1242 return 0; 1243 1244 case DIOCWDINFO: 1245 case DIOCSDINFO: 1246 #ifdef __HAVE_OLD_DISKLABEL 1247 case ODIOCWDINFO: 1248 case ODIOCSDINFO: 1249 #endif 1250 { 1251 struct disklabel *lp; 1252 1253 if ((flag & FWRITE) == 0) 1254 return EBADF; 1255 1256 #ifdef __HAVE_OLD_DISKLABEL 1257 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1258 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1259 if (newlabel == NULL) 1260 return EIO; 1261 memset(newlabel, 0, sizeof newlabel); 1262 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1263 lp = newlabel; 1264 } else 1265 #endif 1266 lp = (struct disklabel *)addr; 1267 1268 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, 1269 NULL)) != 0) 1270 goto bad; 1271 wd->sc_flags |= WDF_LABELLING; 1272 1273 error = setdisklabel(wd->sc_dk.dk_label, 1274 lp, /*wd->sc_dk.dk_openmask : */0, 1275 wd->sc_dk.dk_cpulabel); 1276 if (error == 0) { 1277 if (wd->drvp->state > RESET) { 1278 s = splbio(); 1279 wd->drvp->drive_flags |= DRIVE_RESET; 1280 splx(s); 1281 } 1282 if (xfer == DIOCWDINFO 1283 #ifdef __HAVE_OLD_DISKLABEL 1284 || xfer == ODIOCWDINFO 1285 #endif 1286 ) 1287 error = writedisklabel(WDLABELDEV(dev), 1288 wdstrategy, wd->sc_dk.dk_label, 1289 wd->sc_dk.dk_cpulabel); 1290 } 1291 1292 wd->sc_flags &= ~WDF_LABELLING; 1293 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 1294 bad: 1295 #ifdef __HAVE_OLD_DISKLABEL 1296 if (newlabel != NULL) 1297 free(newlabel, M_TEMP); 1298 #endif 1299 return error; 1300 } 1301 1302 case DIOCKLABEL: 1303 if (*(int *)addr) 1304 wd->sc_flags |= WDF_KLABEL; 1305 else 1306 wd->sc_flags &= ~WDF_KLABEL; 1307 return 0; 1308 1309 case DIOCWLABEL: 1310 if ((flag & FWRITE) == 0) 1311 return EBADF; 1312 if (*(int *)addr) 1313 wd->sc_flags |= WDF_WLABEL; 1314 else 1315 wd->sc_flags &= ~WDF_WLABEL; 1316 return 0; 1317 1318 case DIOCGDEFLABEL: 1319 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1320 return 0; 1321 #ifdef __HAVE_OLD_DISKLABEL 1322 case ODIOCGDEFLABEL: 1323 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1324 if (newlabel == NULL) 1325 return EIO; 1326 wdgetdefaultlabel(wd, newlabel); 1327 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1328 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1329 else 1330 error = ENOTTY; 1331 free(newlabel, M_TEMP); 1332 return error; 1333 #endif 1334 1335 #ifdef notyet 1336 case DIOCWFORMAT: 1337 if ((flag & FWRITE) == 0) 1338 return EBADF; 1339 { 1340 register struct format_op *fop; 1341 struct iovec aiov; 1342 struct uio auio; 1343 1344 fop = (struct format_op *)addr; 1345 aiov.iov_base = fop->df_buf; 1346 aiov.iov_len = fop->df_count; 1347 auio.uio_iov = &aiov; 1348 auio.uio_iovcnt = 1; 1349 auio.uio_resid = fop->df_count; 1350 auio.uio_segflg = 0; 1351 auio.uio_offset = 1352 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1353 auio.uio_procp = p; 1354 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1355 &auio); 1356 fop->df_count -= auio.uio_resid; 1357 fop->df_reg[0] = wdc->sc_status; 1358 fop->df_reg[1] = wdc->sc_error; 1359 return error; 1360 } 1361 #endif 1362 case DIOCGCACHE: 1363 return wd_getcache(wd, (int *)addr); 1364 1365 case DIOCSCACHE: 1366 return wd_setcache(wd, *(int *)addr); 1367 1368 case DIOCCACHESYNC: 1369 return wd_flushcache(wd, AT_WAIT); 1370 1371 case ATAIOCCOMMAND: 1372 /* 1373 * Make sure this command is (relatively) safe first 1374 */ 1375 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1376 (flag & FWRITE) == 0) 1377 return (EBADF); 1378 { 1379 struct wd_ioctl *wi; 1380 atareq_t *atareq = (atareq_t *) addr; 1381 int error1; 1382 1383 wi = wi_get(); 1384 wi->wi_softc = wd; 1385 wi->wi_atareq = *atareq; 1386 1387 if (atareq->datalen && atareq->flags & 1388 (ATACMD_READ | ATACMD_WRITE)) { 1389 wi->wi_iov.iov_base = atareq->databuf; 1390 wi->wi_iov.iov_len = atareq->datalen; 1391 wi->wi_uio.uio_iov = &wi->wi_iov; 1392 wi->wi_uio.uio_iovcnt = 1; 1393 wi->wi_uio.uio_resid = atareq->datalen; 1394 wi->wi_uio.uio_offset = 0; 1395 wi->wi_uio.uio_segflg = UIO_USERSPACE; 1396 wi->wi_uio.uio_rw = 1397 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1398 wi->wi_uio.uio_procp = p; 1399 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1400 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1401 minphys, &wi->wi_uio); 1402 } else { 1403 /* No need to call physio if we don't have any 1404 user data */ 1405 wi->wi_bp.b_flags = 0; 1406 wi->wi_bp.b_data = 0; 1407 wi->wi_bp.b_bcount = 0; 1408 wi->wi_bp.b_dev = 0; 1409 wi->wi_bp.b_proc = p; 1410 wdioctlstrategy(&wi->wi_bp); 1411 error1 = wi->wi_bp.b_error; 1412 } 1413 *atareq = wi->wi_atareq; 1414 wi_free(wi); 1415 return(error1); 1416 } 1417 1418 case DIOCAWEDGE: 1419 { 1420 struct dkwedge_info *dkw = (void *) addr; 1421 1422 if ((flag & FWRITE) == 0) 1423 return (EBADF); 1424 1425 /* If the ioctl happens here, the parent is us. */ 1426 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1427 return (dkwedge_add(dkw)); 1428 } 1429 1430 case DIOCDWEDGE: 1431 { 1432 struct dkwedge_info *dkw = (void *) addr; 1433 1434 if ((flag & FWRITE) == 0) 1435 return (EBADF); 1436 1437 /* If the ioctl happens here, the parent is us. */ 1438 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1439 return (dkwedge_del(dkw)); 1440 } 1441 1442 case DIOCLWEDGES: 1443 { 1444 struct dkwedge_list *dkwl = (void *) addr; 1445 1446 return (dkwedge_list(&wd->sc_dk, dkwl, p)); 1447 } 1448 1449 default: 1450 return ENOTTY; 1451 } 1452 1453 #ifdef DIAGNOSTIC 1454 panic("wdioctl: impossible"); 1455 #endif 1456 } 1457 1458 #ifdef B_FORMAT 1459 int 1460 wdformat(struct buf *bp) 1461 { 1462 1463 bp->b_flags |= B_FORMAT; 1464 return wdstrategy(bp); 1465 } 1466 #endif 1467 1468 int 1469 wdsize(dev_t dev) 1470 { 1471 struct wd_softc *wd; 1472 int part, omask; 1473 int size; 1474 1475 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1476 1477 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1478 if (wd == NULL) 1479 return (-1); 1480 1481 part = WDPART(dev); 1482 omask = wd->sc_dk.dk_openmask & (1 << part); 1483 1484 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1485 return (-1); 1486 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1487 size = -1; 1488 else 1489 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1490 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1491 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1492 return (-1); 1493 return (size); 1494 } 1495 1496 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1497 static int wddoingadump = 0; 1498 static int wddumprecalibrated = 0; 1499 1500 /* 1501 * Dump core after a system crash. 1502 */ 1503 int 1504 wddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size) 1505 { 1506 struct wd_softc *wd; /* disk unit to do the I/O */ 1507 struct disklabel *lp; /* disk's disklabel */ 1508 int part, err; 1509 int nblks; /* total number of sectors left to write */ 1510 1511 /* Check if recursive dump; if so, punt. */ 1512 if (wddoingadump) 1513 return EFAULT; 1514 wddoingadump = 1; 1515 1516 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1517 if (wd == NULL) 1518 return (ENXIO); 1519 1520 part = WDPART(dev); 1521 1522 /* Convert to disk sectors. Request must be a multiple of size. */ 1523 lp = wd->sc_dk.dk_label; 1524 if ((size % lp->d_secsize) != 0) 1525 return EFAULT; 1526 nblks = size / lp->d_secsize; 1527 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1528 1529 /* Check transfer bounds against partition size. */ 1530 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1531 return EINVAL; 1532 1533 /* Offset block number to start of partition. */ 1534 blkno += lp->d_partitions[part].p_offset; 1535 1536 /* Recalibrate, if first dump transfer. */ 1537 if (wddumprecalibrated == 0) { 1538 wddumprecalibrated = 1; 1539 (*wd->atabus->ata_reset_drive)(wd->drvp, 1540 AT_POLL | AT_RST_EMERG); 1541 wd->drvp->state = RESET; 1542 } 1543 1544 wd->sc_bp = NULL; 1545 wd->sc_wdc_bio.blkno = blkno; 1546 wd->sc_wdc_bio.flags = ATA_POLL; 1547 if (wd->sc_flags & WDF_LBA48 && 1548 (blkno > LBA48_THRESHOLD || 1549 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1550 wd->sc_wdc_bio.flags |= ATA_LBA48; 1551 if (wd->sc_flags & WDF_LBA) 1552 wd->sc_wdc_bio.flags |= ATA_LBA; 1553 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1554 wd->sc_wdc_bio.databuf = va; 1555 #ifndef WD_DUMP_NOT_TRUSTED 1556 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1557 case ATACMD_TRY_AGAIN: 1558 panic("wddump: try again"); 1559 break; 1560 case ATACMD_QUEUED: 1561 panic("wddump: polled command has been queued"); 1562 break; 1563 case ATACMD_COMPLETE: 1564 break; 1565 } 1566 switch(wd->sc_wdc_bio.error) { 1567 case TIMEOUT: 1568 printf("wddump: device timed out"); 1569 err = EIO; 1570 break; 1571 case ERR_DF: 1572 printf("wddump: drive fault"); 1573 err = EIO; 1574 break; 1575 case ERR_DMA: 1576 printf("wddump: DMA error"); 1577 err = EIO; 1578 break; 1579 case ERROR: 1580 printf("wddump: "); 1581 wdperror(wd); 1582 err = EIO; 1583 break; 1584 case NOERROR: 1585 err = 0; 1586 break; 1587 default: 1588 panic("wddump: unknown error type"); 1589 } 1590 if (err != 0) { 1591 printf("\n"); 1592 return err; 1593 } 1594 #else /* WD_DUMP_NOT_TRUSTED */ 1595 /* Let's just talk about this first... */ 1596 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1597 unit, va, cylin, head, sector); 1598 delay(500 * 1000); /* half a second */ 1599 #endif 1600 1601 wddoingadump = 0; 1602 return 0; 1603 } 1604 1605 #ifdef HAS_BAD144_HANDLING 1606 /* 1607 * Internalize the bad sector table. 1608 */ 1609 void 1610 bad144intern(struct wd_softc *wd) 1611 { 1612 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1613 struct disklabel *lp = wd->sc_dk.dk_label; 1614 int i = 0; 1615 1616 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1617 1618 for (; i < NBT_BAD; i++) { 1619 if (bt->bt_bad[i].bt_cyl == 0xffff) 1620 break; 1621 wd->sc_badsect[i] = 1622 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1623 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1624 (bt->bt_bad[i].bt_trksec & 0xff); 1625 } 1626 for (; i < NBT_BAD+1; i++) 1627 wd->sc_badsect[i] = -1; 1628 } 1629 #endif 1630 1631 int 1632 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1633 { 1634 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1635 case CMD_AGAIN: 1636 return 1; 1637 case CMD_ERR: 1638 /* 1639 * We `know' there's a drive here; just assume it's old. 1640 * This geometry is only used to read the MBR and print a 1641 * (false) attach message. 1642 */ 1643 strncpy(params->atap_model, "ST506", 1644 sizeof params->atap_model); 1645 params->atap_config = ATA_CFG_FIXED; 1646 params->atap_cylinders = 1024; 1647 params->atap_heads = 8; 1648 params->atap_sectors = 17; 1649 params->atap_multi = 1; 1650 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1651 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1652 return 0; 1653 case CMD_OK: 1654 return 0; 1655 default: 1656 panic("wd_get_params: bad return code from ata_get_params"); 1657 /* NOTREACHED */ 1658 } 1659 } 1660 1661 int 1662 wd_getcache(struct wd_softc *wd, int *bitsp) 1663 { 1664 struct ataparams params; 1665 1666 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1667 return EIO; 1668 if (params.atap_cmd_set1 == 0x0000 || 1669 params.atap_cmd_set1 == 0xffff || 1670 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1671 *bitsp = 0; 1672 return 0; 1673 } 1674 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1675 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1676 *bitsp |= DKCACHE_WRITE; 1677 1678 return 0; 1679 } 1680 1681 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1682 1683 int 1684 wd_setcache(struct wd_softc *wd, int bits) 1685 { 1686 struct ataparams params; 1687 struct ata_command ata_c; 1688 1689 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1690 return EIO; 1691 1692 if (params.atap_cmd_set1 == 0x0000 || 1693 params.atap_cmd_set1 == 0xffff || 1694 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1695 return EOPNOTSUPP; 1696 1697 if ((bits & DKCACHE_READ) == 0 || 1698 (bits & DKCACHE_SAVE) != 0) 1699 return EOPNOTSUPP; 1700 1701 memset(&ata_c, 0, sizeof(struct ata_command)); 1702 ata_c.r_command = SET_FEATURES; 1703 ata_c.r_st_bmask = 0; 1704 ata_c.r_st_pmask = 0; 1705 ata_c.timeout = 30000; /* 30s timeout */ 1706 ata_c.flags = AT_WAIT; 1707 if (bits & DKCACHE_WRITE) 1708 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1709 else 1710 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1711 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1712 printf("%s: wd_setcache command not complete\n", 1713 wd->sc_dev.dv_xname); 1714 return EIO; 1715 } 1716 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1717 char sbuf[sizeof(at_errbits) + 64]; 1718 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1719 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1720 sbuf); 1721 return EIO; 1722 } 1723 return 0; 1724 } 1725 1726 int 1727 wd_standby(struct wd_softc *wd, int flags) 1728 { 1729 struct ata_command ata_c; 1730 1731 memset(&ata_c, 0, sizeof(struct ata_command)); 1732 ata_c.r_command = WDCC_STANDBY_IMMED; 1733 ata_c.r_st_bmask = WDCS_DRDY; 1734 ata_c.r_st_pmask = WDCS_DRDY; 1735 ata_c.flags = flags; 1736 ata_c.timeout = 30000; /* 30s timeout */ 1737 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1738 printf("%s: standby immediate command didn't complete\n", 1739 wd->sc_dev.dv_xname); 1740 return EIO; 1741 } 1742 if (ata_c.flags & AT_ERROR) { 1743 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1744 return ENODEV; 1745 } 1746 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1747 char sbuf[sizeof(at_errbits) + 64]; 1748 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1749 printf("%s: wd_standby: status=%s\n", wd->sc_dev.dv_xname, 1750 sbuf); 1751 return EIO; 1752 } 1753 return 0; 1754 } 1755 1756 int 1757 wd_flushcache(struct wd_softc *wd, int flags) 1758 { 1759 struct ata_command ata_c; 1760 1761 /* 1762 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1763 * only ATA-2 and still support it. 1764 */ 1765 if (wd->drvp->ata_vers < 4 && 1766 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1767 wd->sc_params.atap_cmd_set2 == 0xffff)) 1768 return ENODEV; 1769 memset(&ata_c, 0, sizeof(struct ata_command)); 1770 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1771 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1772 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1773 else 1774 ata_c.r_command = WDCC_FLUSHCACHE; 1775 ata_c.r_st_bmask = WDCS_DRDY; 1776 ata_c.r_st_pmask = WDCS_DRDY; 1777 ata_c.flags = flags; 1778 ata_c.timeout = 30000; /* 30s timeout */ 1779 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1780 printf("%s: flush cache command didn't complete\n", 1781 wd->sc_dev.dv_xname); 1782 return EIO; 1783 } 1784 if (ata_c.flags & AT_ERROR) { 1785 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1786 return ENODEV; 1787 } 1788 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1789 char sbuf[sizeof(at_errbits) + 64]; 1790 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1791 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1792 sbuf); 1793 return EIO; 1794 } 1795 return 0; 1796 } 1797 1798 void 1799 wd_shutdown(void *arg) 1800 { 1801 struct wd_softc *wd = arg; 1802 wd_flushcache(wd, AT_POLL); 1803 } 1804 1805 /* 1806 * Allocate space for a ioctl queue structure. Mostly taken from 1807 * scsipi_ioctl.c 1808 */ 1809 struct wd_ioctl * 1810 wi_get(void) 1811 { 1812 struct wd_ioctl *wi; 1813 int s; 1814 1815 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1816 simple_lock_init(&wi->wi_bp.b_interlock); 1817 s = splbio(); 1818 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1819 splx(s); 1820 return (wi); 1821 } 1822 1823 /* 1824 * Free an ioctl structure and remove it from our list 1825 */ 1826 1827 void 1828 wi_free(struct wd_ioctl *wi) 1829 { 1830 int s; 1831 1832 s = splbio(); 1833 LIST_REMOVE(wi, wi_list); 1834 splx(s); 1835 free(wi, M_TEMP); 1836 } 1837 1838 /* 1839 * Find a wd_ioctl structure based on the struct buf. 1840 */ 1841 1842 struct wd_ioctl * 1843 wi_find(struct buf *bp) 1844 { 1845 struct wd_ioctl *wi; 1846 int s; 1847 1848 s = splbio(); 1849 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1850 if (bp == &wi->wi_bp) 1851 break; 1852 splx(s); 1853 return (wi); 1854 } 1855 1856 /* 1857 * Ioctl pseudo strategy routine 1858 * 1859 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1860 * happens here is: 1861 * 1862 * - wdioctl() queues a wd_ioctl structure. 1863 * 1864 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1865 * user space I/O is required. If physio() is called, physio() eventually 1866 * calls wdioctlstrategy(). 1867 * 1868 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 1869 * to perform the actual command 1870 * 1871 * The reason for the use of the pseudo strategy routine is because 1872 * when doing I/O to/from user space, physio _really_ wants to be in 1873 * the loop. We could put the entire buffer into the ioctl request 1874 * structure, but that won't scale if we want to do things like download 1875 * microcode. 1876 */ 1877 1878 void 1879 wdioctlstrategy(struct buf *bp) 1880 { 1881 struct wd_ioctl *wi; 1882 struct ata_command ata_c; 1883 int error = 0; 1884 1885 wi = wi_find(bp); 1886 if (wi == NULL) { 1887 printf("user_strat: No ioctl\n"); 1888 error = EINVAL; 1889 goto bad; 1890 } 1891 1892 memset(&ata_c, 0, sizeof(ata_c)); 1893 1894 /* 1895 * Abort if physio broke up the transfer 1896 */ 1897 1898 if (bp->b_bcount != wi->wi_atareq.datalen) { 1899 printf("physio split wd ioctl request... cannot proceed\n"); 1900 error = EIO; 1901 goto bad; 1902 } 1903 1904 /* 1905 * Abort if we didn't get a buffer size that was a multiple of 1906 * our sector size (or was larger than NBBY) 1907 */ 1908 1909 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 1910 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 1911 (1 << NBBY)) { 1912 error = EINVAL; 1913 goto bad; 1914 } 1915 1916 /* 1917 * Make sure a timeout was supplied in the ioctl request 1918 */ 1919 1920 if (wi->wi_atareq.timeout == 0) { 1921 error = EINVAL; 1922 goto bad; 1923 } 1924 1925 if (wi->wi_atareq.flags & ATACMD_READ) 1926 ata_c.flags |= AT_READ; 1927 else if (wi->wi_atareq.flags & ATACMD_WRITE) 1928 ata_c.flags |= AT_WRITE; 1929 1930 if (wi->wi_atareq.flags & ATACMD_READREG) 1931 ata_c.flags |= AT_READREG; 1932 1933 ata_c.flags |= AT_WAIT; 1934 1935 ata_c.timeout = wi->wi_atareq.timeout; 1936 ata_c.r_command = wi->wi_atareq.command; 1937 ata_c.r_head = wi->wi_atareq.head & 0x0f; 1938 ata_c.r_cyl = wi->wi_atareq.cylinder; 1939 ata_c.r_sector = wi->wi_atareq.sec_num; 1940 ata_c.r_count = wi->wi_atareq.sec_count; 1941 ata_c.r_features = wi->wi_atareq.features; 1942 ata_c.r_st_bmask = WDCS_DRDY; 1943 ata_c.r_st_pmask = WDCS_DRDY; 1944 ata_c.data = wi->wi_bp.b_data; 1945 ata_c.bcount = wi->wi_bp.b_bcount; 1946 1947 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 1948 != ATACMD_COMPLETE) { 1949 wi->wi_atareq.retsts = ATACMD_ERROR; 1950 goto bad; 1951 } 1952 1953 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1954 if (ata_c.flags & AT_ERROR) { 1955 wi->wi_atareq.retsts = ATACMD_ERROR; 1956 wi->wi_atareq.error = ata_c.r_error; 1957 } else if (ata_c.flags & AT_DF) 1958 wi->wi_atareq.retsts = ATACMD_DF; 1959 else 1960 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 1961 } else { 1962 wi->wi_atareq.retsts = ATACMD_OK; 1963 if (wi->wi_atareq.flags & ATACMD_READREG) { 1964 wi->wi_atareq.head = ata_c.r_head ; 1965 wi->wi_atareq.cylinder = ata_c.r_cyl; 1966 wi->wi_atareq.sec_num = ata_c.r_sector; 1967 wi->wi_atareq.sec_count = ata_c.r_count; 1968 wi->wi_atareq.features = ata_c.r_features; 1969 wi->wi_atareq.error = ata_c.r_error; 1970 } 1971 } 1972 1973 bp->b_error = 0; 1974 biodone(bp); 1975 return; 1976 bad: 1977 bp->b_flags |= B_ERROR; 1978 bp->b_error = error; 1979 biodone(bp); 1980 } 1981
Indexes created Thu Oct 23 22:10:10 GMT 2025