wd.c revision 1.417
1 /* $NetBSD: wd.c,v 1.417 2014/12/31 19:52:05 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Manuel Bouyer. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 /*- 28 * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. 29 * All rights reserved. 30 * 31 * This code is derived from software contributed to The NetBSD Foundation 32 * by Charles M. Hannum and by Onno van der Linden. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 44 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 45 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 47 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 48 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 49 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 50 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 51 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 52 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 53 * POSSIBILITY OF SUCH DAMAGE. 54 */ 55 56 #include <sys/cdefs.h> 57 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.417 2014/12/31 19:52:05 christos Exp $"); 58 59 #include "opt_ata.h" 60 61 #include <sys/param.h> 62 #include <sys/systm.h> 63 #include <sys/kernel.h> 64 #include <sys/conf.h> 65 #include <sys/file.h> 66 #include <sys/stat.h> 67 #include <sys/ioctl.h> 68 #include <sys/buf.h> 69 #include <sys/bufq.h> 70 #include <sys/uio.h> 71 #include <sys/malloc.h> 72 #include <sys/device.h> 73 #include <sys/disklabel.h> 74 #include <sys/disk.h> 75 #include <sys/syslog.h> 76 #include <sys/proc.h> 77 #include <sys/reboot.h> 78 #include <sys/vnode.h> 79 #include <sys/rnd.h> 80 81 #include <sys/intr.h> 82 #include <sys/bus.h> 83 84 #include <dev/ata/atareg.h> 85 #include <dev/ata/atavar.h> 86 #include <dev/ata/wdvar.h> 87 #include <dev/ic/wdcreg.h> 88 #include <sys/ataio.h> 89 #include "locators.h" 90 91 #include <prop/proplib.h> 92 93 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 94 #define WDIORETRIES 5 /* number of retries before giving up */ 95 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 96 97 #define WDUNIT(dev) DISKUNIT(dev) 98 #define WDPART(dev) DISKPART(dev) 99 #define WDMINOR(unit, part) DISKMINOR(unit, part) 100 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 101 102 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 103 104 #define DEBUG_INTR 0x01 105 #define DEBUG_XFERS 0x02 106 #define DEBUG_STATUS 0x04 107 #define DEBUG_FUNCS 0x08 108 #define DEBUG_PROBE 0x10 109 #ifdef ATADEBUG 110 int wdcdebug_wd_mask = 0x0; 111 #define ATADEBUG_PRINT(args, level) \ 112 if (wdcdebug_wd_mask & (level)) \ 113 printf args 114 #else 115 #define ATADEBUG_PRINT(args, level) 116 #endif 117 118 int wdprobe(device_t, cfdata_t, void *); 119 void wdattach(device_t, device_t, void *); 120 int wddetach(device_t, int); 121 int wdprint(void *, char *); 122 void wdperror(const struct wd_softc *); 123 124 static void wdminphys(struct buf *); 125 126 static int wdlastclose(device_t); 127 static bool wd_suspend(device_t, const pmf_qual_t *); 128 static int wd_standby(struct wd_softc *, int); 129 130 CFATTACH_DECL3_NEW(wd, sizeof(struct wd_softc), 131 wdprobe, wdattach, wddetach, NULL, NULL, NULL, DVF_DETACH_SHUTDOWN); 132 133 extern struct cfdriver wd_cd; 134 135 dev_type_open(wdopen); 136 dev_type_close(wdclose); 137 dev_type_read(wdread); 138 dev_type_write(wdwrite); 139 dev_type_ioctl(wdioctl); 140 dev_type_strategy(wdstrategy); 141 dev_type_dump(wddump); 142 dev_type_size(wdsize); 143 static dev_type_discard(wddiscard); 144 145 const struct bdevsw wd_bdevsw = { 146 .d_open = wdopen, 147 .d_close = wdclose, 148 .d_strategy = wdstrategy, 149 .d_ioctl = wdioctl, 150 .d_dump = wddump, 151 .d_psize = wdsize, 152 .d_discard = wddiscard, 153 .d_flag = D_DISK 154 }; 155 156 const struct cdevsw wd_cdevsw = { 157 .d_open = wdopen, 158 .d_close = wdclose, 159 .d_read = wdread, 160 .d_write = wdwrite, 161 .d_ioctl = wdioctl, 162 .d_stop = nostop, 163 .d_tty = notty, 164 .d_poll = nopoll, 165 .d_mmap = nommap, 166 .d_kqfilter = nokqfilter, 167 .d_discard = wddiscard, 168 .d_flag = D_DISK 169 }; 170 171 /* 172 * Glue necessary to hook WDCIOCCOMMAND into physio 173 */ 174 175 struct wd_ioctl { 176 LIST_ENTRY(wd_ioctl) wi_list; 177 struct buf wi_bp; 178 struct uio wi_uio; 179 struct iovec wi_iov; 180 atareq_t wi_atareq; 181 struct wd_softc *wi_softc; 182 }; 183 184 LIST_HEAD(, wd_ioctl) wi_head; 185 186 struct wd_ioctl *wi_find(struct buf *); 187 void wi_free(struct wd_ioctl *); 188 struct wd_ioctl *wi_get(void); 189 void wdioctlstrategy(struct buf *); 190 191 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 192 void wdgetdisklabel(struct wd_softc *); 193 void wdstart(void *); 194 void wdstart1(struct wd_softc*, struct buf *); 195 void wdrestart(void *); 196 void wddone(void *); 197 int wd_get_params(struct wd_softc *, uint8_t, struct ataparams *); 198 int wd_flushcache(struct wd_softc *, int); 199 int wd_trim(struct wd_softc *, int, daddr_t, long); 200 bool wd_shutdown(device_t, int); 201 202 int wd_getcache(struct wd_softc *, int *); 203 int wd_setcache(struct wd_softc *, int); 204 205 struct dkdriver wddkdriver = { wdstrategy, wdminphys }; 206 207 #ifdef HAS_BAD144_HANDLING 208 static void bad144intern(struct wd_softc *); 209 #endif 210 211 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 212 213 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 214 215 /* 216 * Quirk table for IDE drives. Put more-specific matches first, since 217 * a simple globing routine is used for matching. 218 */ 219 static const struct wd_quirk { 220 const char *wdq_match; /* inquiry pattern to match */ 221 int wdq_quirks; /* drive quirks */ 222 } wd_quirk_table[] = { 223 /* 224 * Some Seagate S-ATA drives have a PHY which can get confused 225 * with the way data is packetized by some S-ATA controllers. 226 * 227 * The work-around is to split in two any write transfer whose 228 * sector count % 15 == 1 (assuming 512 byte sectors). 229 * 230 * XXX This is an incomplete list. There are at least a couple 231 * XXX more model numbers. If you have trouble with such transfers 232 * XXX (8K is the most common) on Seagate S-ATA drives, please 233 * XXX notify thorpej (at) NetBSD.org. 234 * 235 * The ST360015AS has not yet been confirmed to have this 236 * issue, however, it is the only other drive in the 237 * Seagate Barracuda Serial ATA V family. 238 * 239 */ 240 { "ST3120023AS", 241 WD_QUIRK_SPLIT_MOD15_WRITE }, 242 { "ST380023AS", 243 WD_QUIRK_SPLIT_MOD15_WRITE }, 244 { "ST360015AS", 245 WD_QUIRK_SPLIT_MOD15_WRITE }, 246 { NULL, 247 0 } 248 }; 249 250 static const struct wd_quirk * 251 wd_lookup_quirks(const char *name) 252 { 253 const struct wd_quirk *wdq; 254 const char *estr; 255 256 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 257 /* 258 * We only want exact matches (which include matches 259 * against globbing characters). 260 */ 261 if (pmatch(name, wdq->wdq_match, &estr) == 2) 262 return (wdq); 263 } 264 return (NULL); 265 } 266 267 int 268 wdprobe(device_t parent, cfdata_t match, void *aux) 269 { 270 struct ata_device *adev = aux; 271 272 if (adev == NULL) 273 return 0; 274 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 275 return 0; 276 277 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 278 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 279 return 0; 280 return 1; 281 } 282 283 void 284 wdattach(device_t parent, device_t self, void *aux) 285 { 286 struct wd_softc *wd = device_private(self); 287 struct ata_device *adev= aux; 288 int i, blank; 289 char tbuf[41], pbuf[9], c, *p, *q; 290 const struct wd_quirk *wdq; 291 292 wd->sc_dev = self; 293 294 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 295 callout_init(&wd->sc_restart_ch, 0); 296 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 297 #ifdef WD_SOFTBADSECT 298 SLIST_INIT(&wd->sc_bslist); 299 #endif 300 wd->atabus = adev->adev_bustype; 301 wd->openings = adev->adev_openings; 302 wd->drvp = adev->adev_drv_data; 303 304 wd->drvp->drv_done = wddone; 305 wd->drvp->drv_softc = wd->sc_dev; /* done in atabusconfig_thread() 306 but too late */ 307 308 aprint_naive("\n"); 309 aprint_normal("\n"); 310 311 /* read our drive info */ 312 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 313 aprint_error_dev(self, "IDENTIFY failed\n"); 314 goto out; 315 } 316 317 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 318 i < sizeof(wd->sc_params.atap_model); i++) { 319 c = *p++; 320 if (c == '\0') 321 break; 322 if (c != ' ') { 323 if (blank) { 324 *q++ = ' '; 325 blank = 0; 326 } 327 *q++ = c; 328 } else 329 blank = 1; 330 } 331 *q++ = '\0'; 332 333 aprint_normal_dev(self, "<%s>\n", tbuf); 334 335 wdq = wd_lookup_quirks(tbuf); 336 if (wdq != NULL) 337 wd->sc_quirks = wdq->wdq_quirks; 338 339 if (wd->sc_quirks != 0) { 340 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 341 snprintb(sbuf, sizeof(sbuf), WD_QUIRK_FMT, wd->sc_quirks); 342 aprint_normal_dev(self, "quirks %s\n", sbuf); 343 } 344 345 if ((wd->sc_params.atap_multi & 0xff) > 1) { 346 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 347 } else { 348 wd->sc_multi = 1; 349 } 350 351 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 352 wd->sc_multi); 353 354 /* 48-bit LBA addressing */ 355 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 356 wd->sc_flags |= WDF_LBA48; 357 358 /* Prior to ATA-4, LBA was optional. */ 359 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 360 wd->sc_flags |= WDF_LBA; 361 #if 0 362 /* ATA-4 requires LBA. */ 363 if (wd->sc_params.atap_ataversion != 0xffff && 364 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 365 wd->sc_flags |= WDF_LBA; 366 #endif 367 368 if ((wd->sc_flags & WDF_LBA48) != 0) { 369 aprint_verbose(" LBA48 addressing\n"); 370 wd->sc_capacity = 371 ((uint64_t) wd->sc_params.atap_max_lba[3] << 48) | 372 ((uint64_t) wd->sc_params.atap_max_lba[2] << 32) | 373 ((uint64_t) wd->sc_params.atap_max_lba[1] << 16) | 374 ((uint64_t) wd->sc_params.atap_max_lba[0] << 0); 375 wd->sc_capacity28 = 376 (wd->sc_params.atap_capacity[1] << 16) | 377 wd->sc_params.atap_capacity[0]; 378 } else if ((wd->sc_flags & WDF_LBA) != 0) { 379 aprint_verbose(" LBA addressing\n"); 380 wd->sc_capacity28 = wd->sc_capacity = 381 (wd->sc_params.atap_capacity[1] << 16) | 382 wd->sc_params.atap_capacity[0]; 383 } else { 384 aprint_verbose(" chs addressing\n"); 385 wd->sc_capacity28 = wd->sc_capacity = 386 wd->sc_params.atap_cylinders * 387 wd->sc_params.atap_heads * 388 wd->sc_params.atap_sectors; 389 } 390 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 391 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 392 "%d bytes/sect x %llu sectors\n", 393 pbuf, 394 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 395 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 396 wd->sc_params.atap_cylinders, 397 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 398 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 399 400 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 401 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 402 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 403 out: 404 /* 405 * Initialize and attach the disk structure. 406 */ 407 /* we fill in dk_info later */ 408 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 409 disk_attach(&wd->sc_dk); 410 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 411 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 412 RND_TYPE_DISK, RND_FLAG_DEFAULT); 413 414 /* Discover wedges on this disk. */ 415 dkwedge_discover(&wd->sc_dk); 416 417 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 418 aprint_error_dev(self, "couldn't establish power handler\n"); 419 } 420 421 static bool 422 wd_suspend(device_t dv, const pmf_qual_t *qual) 423 { 424 struct wd_softc *sc = device_private(dv); 425 426 /* the adapter needs to be enabled */ 427 if (sc->atabus->ata_addref(sc->drvp)) 428 return true; /* no need to complain */ 429 430 wd_flushcache(sc, AT_WAIT); 431 wd_standby(sc, AT_WAIT); 432 433 sc->atabus->ata_delref(sc->drvp); 434 return true; 435 } 436 437 int 438 wddetach(device_t self, int flags) 439 { 440 struct wd_softc *sc = device_private(self); 441 int bmaj, cmaj, i, mn, rc, s; 442 443 if ((rc = disk_begindetach(&sc->sc_dk, wdlastclose, self, flags)) != 0) 444 return rc; 445 446 /* locate the major number */ 447 bmaj = bdevsw_lookup_major(&wd_bdevsw); 448 cmaj = cdevsw_lookup_major(&wd_cdevsw); 449 450 /* Nuke the vnodes for any open instances. */ 451 for (i = 0; i < MAXPARTITIONS; i++) { 452 mn = WDMINOR(device_unit(self), i); 453 vdevgone(bmaj, mn, mn, VBLK); 454 vdevgone(cmaj, mn, mn, VCHR); 455 } 456 457 /* Delete all of our wedges. */ 458 dkwedge_delall(&sc->sc_dk); 459 460 s = splbio(); 461 462 /* Kill off any queued buffers. */ 463 bufq_drain(sc->sc_q); 464 465 bufq_free(sc->sc_q); 466 sc->atabus->ata_killpending(sc->drvp); 467 468 splx(s); 469 470 /* Detach disk. */ 471 disk_detach(&sc->sc_dk); 472 disk_destroy(&sc->sc_dk); 473 474 #ifdef WD_SOFTBADSECT 475 /* Clean out the bad sector list */ 476 while (!SLIST_EMPTY(&sc->sc_bslist)) { 477 void *head = SLIST_FIRST(&sc->sc_bslist); 478 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 479 free(head, M_TEMP); 480 } 481 sc->sc_bscount = 0; 482 #endif 483 484 pmf_device_deregister(self); 485 486 /* Unhook the entropy source. */ 487 rnd_detach_source(&sc->rnd_source); 488 489 callout_destroy(&sc->sc_restart_ch); 490 491 sc->drvp->drive_type = ATA_DRIVET_NONE; /* no drive any more here */ 492 sc->drvp->drive_flags = 0; 493 494 return (0); 495 } 496 497 /* 498 * Read/write routine for a buffer. Validates the arguments and schedules the 499 * transfer. Does not wait for the transfer to complete. 500 */ 501 void 502 wdstrategy(struct buf *bp) 503 { 504 struct wd_softc *wd = 505 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 506 struct disklabel *lp = wd->sc_dk.dk_label; 507 daddr_t blkno; 508 int s; 509 510 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 511 DEBUG_XFERS); 512 513 /* Valid request? */ 514 if (bp->b_blkno < 0 || 515 (bp->b_bcount % lp->d_secsize) != 0 || 516 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 517 bp->b_error = EINVAL; 518 goto done; 519 } 520 521 /* If device invalidated (e.g. media change, door open, 522 * device detachment), then error. 523 */ 524 if ((wd->sc_flags & WDF_LOADED) == 0 || 525 !device_is_enabled(wd->sc_dev)) { 526 bp->b_error = EIO; 527 goto done; 528 } 529 530 /* If it's a null transfer, return immediately. */ 531 if (bp->b_bcount == 0) 532 goto done; 533 534 /* 535 * Do bounds checking, adjust transfer. if error, process. 536 * If end of partition, just return. 537 */ 538 if (WDPART(bp->b_dev) == RAW_PART) { 539 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 540 wd->sc_capacity) <= 0) 541 goto done; 542 } else { 543 if (bounds_check_with_label(&wd->sc_dk, bp, 544 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 545 goto done; 546 } 547 548 /* 549 * Now convert the block number to absolute and put it in 550 * terms of the device's logical block size. 551 */ 552 if (lp->d_secsize >= DEV_BSIZE) 553 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 554 else 555 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 556 557 if (WDPART(bp->b_dev) != RAW_PART) 558 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 559 560 bp->b_rawblkno = blkno; 561 562 #ifdef WD_SOFTBADSECT 563 /* 564 * If the transfer about to be attempted contains only a block that 565 * is known to be bad then return an error for the transfer without 566 * even attempting to start a transfer up under the premis that we 567 * will just end up doing more retries for a transfer that will end 568 * up failing again. 569 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 570 */ 571 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 572 struct disk_badsectors *dbs; 573 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 574 575 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 576 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 577 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 578 bp->b_error = EIO; 579 goto done; 580 } 581 } 582 #endif 583 584 /* Queue transfer on drive, activate drive and controller if idle. */ 585 s = splbio(); 586 bufq_put(wd->sc_q, bp); 587 wdstart(wd); 588 splx(s); 589 return; 590 done: 591 /* Toss transfer; we're done early. */ 592 bp->b_resid = bp->b_bcount; 593 biodone(bp); 594 } 595 596 /* 597 * Queue a drive for I/O. 598 */ 599 void 600 wdstart(void *arg) 601 { 602 struct wd_softc *wd = arg; 603 struct buf *bp = NULL; 604 605 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 606 DEBUG_XFERS); 607 608 if (!device_is_active(wd->sc_dev)) 609 return; 610 611 while (wd->openings > 0) { 612 613 /* Is there a buf for us ? */ 614 if ((bp = bufq_get(wd->sc_q)) == NULL) 615 return; 616 617 /* 618 * Make the command. First lock the device 619 */ 620 wd->openings--; 621 622 wd->retries = 0; 623 wdstart1(wd, bp); 624 } 625 } 626 627 static void 628 wd_split_mod15_write(struct buf *bp) 629 { 630 struct buf *obp = bp->b_private; 631 struct wd_softc *sc = 632 device_lookup_private(&wd_cd, DISKUNIT(obp->b_dev)); 633 int s; 634 635 if (__predict_false(bp->b_error != 0)) { 636 /* 637 * Propagate the error. If this was the first half of 638 * the original transfer, make sure to account for that 639 * in the residual. 640 */ 641 if (bp->b_data == obp->b_data) 642 bp->b_resid += bp->b_bcount; 643 goto done; 644 } 645 646 /* 647 * If this was the second half of the transfer, we're all done! 648 */ 649 if (bp->b_data != obp->b_data) 650 goto done; 651 652 /* 653 * Advance the pointer to the second half and issue that command 654 * using the same opening. 655 */ 656 bp->b_flags = obp->b_flags; 657 bp->b_oflags = obp->b_oflags; 658 bp->b_cflags = obp->b_cflags; 659 bp->b_data = (char *)bp->b_data + bp->b_bcount; 660 bp->b_blkno += (bp->b_bcount / 512); 661 bp->b_rawblkno += (bp->b_bcount / 512); 662 s = splbio(); 663 wdstart1(sc, bp); 664 splx(s); 665 return; 666 667 done: 668 obp->b_error = bp->b_error; 669 obp->b_resid = bp->b_resid; 670 s = splbio(); 671 putiobuf(bp); 672 biodone(obp); 673 sc->openings++; 674 splx(s); 675 /* wddone() will call wdstart() */ 676 } 677 678 void 679 wdstart1(struct wd_softc *wd, struct buf *bp) 680 { 681 682 /* 683 * Deal with the "split mod15 write" quirk. We just divide the 684 * transfer in two, doing the first half and then then second half 685 * with the same command opening. 686 * 687 * Note we MUST do this here, because we can't let insertion 688 * into the bufq cause the transfers to be re-merged. 689 */ 690 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 691 (bp->b_flags & B_READ) == 0 && 692 bp->b_bcount > 512 && 693 ((bp->b_bcount / 512) % 15) == 1)) { 694 struct buf *nbp; 695 696 /* already at splbio */ 697 nbp = getiobuf(NULL, false); 698 if (__predict_false(nbp == NULL)) { 699 /* No memory -- fail the iop. */ 700 bp->b_error = ENOMEM; 701 bp->b_resid = bp->b_bcount; 702 biodone(bp); 703 wd->openings++; 704 return; 705 } 706 707 nbp->b_error = 0; 708 nbp->b_proc = bp->b_proc; 709 nbp->b_dev = bp->b_dev; 710 711 nbp->b_bcount = bp->b_bcount / 2; 712 nbp->b_bufsize = bp->b_bcount / 2; 713 nbp->b_data = bp->b_data; 714 715 nbp->b_blkno = bp->b_blkno; 716 nbp->b_rawblkno = bp->b_rawblkno; 717 718 nbp->b_flags = bp->b_flags; 719 nbp->b_oflags = bp->b_oflags; 720 nbp->b_cflags = bp->b_cflags; 721 nbp->b_iodone = wd_split_mod15_write; 722 723 /* Put ptr to orig buf in b_private and use new buf */ 724 nbp->b_private = bp; 725 726 BIO_COPYPRIO(nbp, bp); 727 728 bp = nbp; 729 } 730 731 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 732 wd->sc_wdc_bio.bcount = bp->b_bcount; 733 wd->sc_wdc_bio.databuf = bp->b_data; 734 wd->sc_wdc_bio.blkdone =0; 735 KASSERT(bp == wd->sc_bp || wd->sc_bp == NULL); 736 wd->sc_bp = bp; 737 /* 738 * If we're retrying, retry in single-sector mode. This will give us 739 * the sector number of the problem, and will eventually allow the 740 * transfer to succeed. 741 */ 742 if (wd->retries >= WDIORETRIES_SINGLE) 743 wd->sc_wdc_bio.flags = ATA_SINGLE; 744 else 745 wd->sc_wdc_bio.flags = 0; 746 if (wd->sc_flags & WDF_LBA48 && 747 (wd->sc_wdc_bio.blkno + 748 wd->sc_wdc_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 749 wd->sc_capacity28) 750 wd->sc_wdc_bio.flags |= ATA_LBA48; 751 if (wd->sc_flags & WDF_LBA) 752 wd->sc_wdc_bio.flags |= ATA_LBA; 753 if (bp->b_flags & B_READ) 754 wd->sc_wdc_bio.flags |= ATA_READ; 755 /* Instrumentation. */ 756 disk_busy(&wd->sc_dk); 757 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 758 case ATACMD_TRY_AGAIN: 759 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 760 break; 761 case ATACMD_QUEUED: 762 case ATACMD_COMPLETE: 763 break; 764 default: 765 panic("wdstart1: bad return code from ata_bio()"); 766 } 767 } 768 769 void 770 wddone(void *v) 771 { 772 struct wd_softc *wd = device_private(v); 773 struct buf *bp = wd->sc_bp; 774 const char *errmsg; 775 int do_perror = 0; 776 777 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 778 DEBUG_XFERS); 779 if (bp == NULL) 780 return; 781 bp->b_resid = wd->sc_wdc_bio.bcount; 782 switch (wd->sc_wdc_bio.error) { 783 case ERR_DMA: 784 errmsg = "DMA error"; 785 goto retry; 786 case ERR_DF: 787 errmsg = "device fault"; 788 goto retry; 789 case TIMEOUT: 790 errmsg = "device timeout"; 791 goto retry; 792 case ERR_RESET: 793 errmsg = "channel reset"; 794 goto retry2; 795 case ERROR: 796 /* Don't care about media change bits */ 797 if (wd->sc_wdc_bio.r_error != 0 && 798 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 799 goto noerror; 800 errmsg = "error"; 801 do_perror = 1; 802 retry: /* Just reset and retry. Can we do more ? */ 803 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD, NULL); 804 retry2: 805 diskerr(bp, "wd", errmsg, LOG_PRINTF, 806 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 807 if (wd->retries < WDIORETRIES) 808 printf(", retrying"); 809 printf("\n"); 810 if (do_perror) 811 wdperror(wd); 812 if (wd->retries < WDIORETRIES) { 813 wd->retries++; 814 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 815 wdrestart, wd); 816 return; 817 } 818 819 #ifdef WD_SOFTBADSECT 820 /* 821 * Not all errors indicate a failed block but those that do, 822 * put the block on the bad-block list for the device. Only 823 * do this for reads because the drive should do it for writes, 824 * itself, according to Manuel. 825 */ 826 if ((bp->b_flags & B_READ) && 827 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 828 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 829 struct disk_badsectors *dbs; 830 831 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 832 dbs->dbs_min = bp->b_rawblkno; 833 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 834 microtime(&dbs->dbs_failedat); 835 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 836 wd->sc_bscount++; 837 } 838 #endif 839 bp->b_error = EIO; 840 break; 841 case NOERROR: 842 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 843 aprint_error_dev(wd->sc_dev, 844 "soft error (corrected)\n"); 845 break; 846 case ERR_NODEV: 847 bp->b_error = EIO; 848 break; 849 } 850 if (__predict_false(bp->b_error != 0) && bp->b_resid == 0) { 851 /* 852 * the disk or controller sometimes report a complete 853 * xfer, when there has been an error. This is wrong, 854 * assume nothing got transfered in this case 855 */ 856 bp->b_resid = bp->b_bcount; 857 } 858 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 859 (bp->b_flags & B_READ)); 860 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 861 /* XXX Yuck, but we don't want to increment openings in this case */ 862 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 863 biodone(bp); 864 else { 865 biodone(bp); 866 wd->openings++; 867 } 868 KASSERT(wd->sc_bp != NULL); 869 wd->sc_bp = NULL; 870 wdstart(wd); 871 } 872 873 void 874 wdrestart(void *v) 875 { 876 struct wd_softc *wd = v; 877 struct buf *bp = wd->sc_bp; 878 int s; 879 880 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 881 DEBUG_XFERS); 882 s = splbio(); 883 wdstart1(v, bp); 884 splx(s); 885 } 886 887 static void 888 wdminphys(struct buf *bp) 889 { 890 891 if (bp->b_bcount > (512 * 128)) { 892 bp->b_bcount = (512 * 128); 893 } 894 minphys(bp); 895 } 896 897 int 898 wdread(dev_t dev, struct uio *uio, int flags) 899 { 900 901 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 902 return (physio(wdstrategy, NULL, dev, B_READ, wdminphys, uio)); 903 } 904 905 int 906 wdwrite(dev_t dev, struct uio *uio, int flags) 907 { 908 909 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 910 return (physio(wdstrategy, NULL, dev, B_WRITE, wdminphys, uio)); 911 } 912 913 int 914 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 915 { 916 struct wd_softc *wd; 917 int part, error; 918 919 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 920 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 921 if (wd == NULL) 922 return (ENXIO); 923 924 if (! device_is_active(wd->sc_dev)) 925 return (ENODEV); 926 927 if (wd->sc_capacity == 0) 928 return (ENODEV); 929 930 part = WDPART(dev); 931 932 mutex_enter(&wd->sc_dk.dk_openlock); 933 934 /* 935 * If there are wedges, and this is not RAW_PART, then we 936 * need to fail. 937 */ 938 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 939 error = EBUSY; 940 goto bad1; 941 } 942 943 /* 944 * If this is the first open of this device, add a reference 945 * to the adapter. 946 */ 947 if (wd->sc_dk.dk_openmask == 0 && 948 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 949 goto bad1; 950 951 if (wd->sc_dk.dk_openmask != 0) { 952 /* 953 * If any partition is open, but the disk has been invalidated, 954 * disallow further opens. 955 */ 956 if ((wd->sc_flags & WDF_LOADED) == 0) { 957 error = EIO; 958 goto bad2; 959 } 960 } else { 961 if ((wd->sc_flags & WDF_LOADED) == 0) { 962 963 /* Load the physical device parameters. */ 964 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 965 aprint_error_dev(wd->sc_dev, 966 "IDENTIFY failed\n"); 967 error = EIO; 968 goto bad2; 969 } 970 wd->sc_flags |= WDF_LOADED; 971 /* Load the partition info if not already loaded. */ 972 wdgetdisklabel(wd); 973 } 974 } 975 976 /* Check that the partition exists. */ 977 if (part != RAW_PART && 978 (part >= wd->sc_dk.dk_label->d_npartitions || 979 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 980 error = ENXIO; 981 goto bad2; 982 } 983 984 /* Insure only one open at a time. */ 985 switch (fmt) { 986 case S_IFCHR: 987 wd->sc_dk.dk_copenmask |= (1 << part); 988 break; 989 case S_IFBLK: 990 wd->sc_dk.dk_bopenmask |= (1 << part); 991 break; 992 } 993 wd->sc_dk.dk_openmask = 994 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 995 996 mutex_exit(&wd->sc_dk.dk_openlock); 997 return 0; 998 999 bad2: 1000 if (wd->sc_dk.dk_openmask == 0) 1001 wd->atabus->ata_delref(wd->drvp); 1002 bad1: 1003 mutex_exit(&wd->sc_dk.dk_openlock); 1004 return error; 1005 } 1006 1007 /* 1008 * Caller must hold wd->sc_dk.dk_openlock. 1009 */ 1010 static int 1011 wdlastclose(device_t self) 1012 { 1013 struct wd_softc *wd = device_private(self); 1014 1015 wd_flushcache(wd, AT_WAIT); 1016 1017 if (! (wd->sc_flags & WDF_KLABEL)) 1018 wd->sc_flags &= ~WDF_LOADED; 1019 1020 wd->atabus->ata_delref(wd->drvp); 1021 1022 return 0; 1023 } 1024 1025 int 1026 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1027 { 1028 struct wd_softc *wd = 1029 device_lookup_private(&wd_cd, WDUNIT(dev)); 1030 int part = WDPART(dev); 1031 1032 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1033 1034 mutex_enter(&wd->sc_dk.dk_openlock); 1035 1036 switch (fmt) { 1037 case S_IFCHR: 1038 wd->sc_dk.dk_copenmask &= ~(1 << part); 1039 break; 1040 case S_IFBLK: 1041 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1042 break; 1043 } 1044 wd->sc_dk.dk_openmask = 1045 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1046 1047 if (wd->sc_dk.dk_openmask == 0) 1048 wdlastclose(wd->sc_dev); 1049 1050 mutex_exit(&wd->sc_dk.dk_openlock); 1051 return 0; 1052 } 1053 1054 void 1055 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1056 { 1057 1058 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1059 memset(lp, 0, sizeof(struct disklabel)); 1060 1061 lp->d_secsize = DEV_BSIZE; 1062 lp->d_ntracks = wd->sc_params.atap_heads; 1063 lp->d_nsectors = wd->sc_params.atap_sectors; 1064 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1065 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1066 wd->sc_params.atap_cylinders; 1067 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1068 1069 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1070 lp->d_type = DTYPE_ST506; 1071 else 1072 lp->d_type = DTYPE_ESDI; 1073 1074 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1075 strncpy(lp->d_packname, "fictitious", 16); 1076 if (wd->sc_capacity > UINT32_MAX) 1077 lp->d_secperunit = UINT32_MAX; 1078 else 1079 lp->d_secperunit = wd->sc_capacity; 1080 lp->d_rpm = 3600; 1081 lp->d_interleave = 1; 1082 lp->d_flags = 0; 1083 1084 lp->d_partitions[RAW_PART].p_offset = 0; 1085 lp->d_partitions[RAW_PART].p_size = lp->d_secperunit; 1086 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1087 lp->d_npartitions = RAW_PART + 1; 1088 1089 lp->d_magic = DISKMAGIC; 1090 lp->d_magic2 = DISKMAGIC; 1091 lp->d_checksum = dkcksum(lp); 1092 } 1093 1094 /* 1095 * Fabricate a default disk label, and try to read the correct one. 1096 */ 1097 void 1098 wdgetdisklabel(struct wd_softc *wd) 1099 { 1100 struct disklabel *lp = wd->sc_dk.dk_label; 1101 const char *errstring; 1102 int s; 1103 1104 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1105 1106 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1107 1108 wdgetdefaultlabel(wd, lp); 1109 1110 wd->sc_badsect[0] = -1; 1111 1112 if (wd->drvp->state > RESET) { 1113 s = splbio(); 1114 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1115 splx(s); 1116 } 1117 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1118 RAW_PART), wdstrategy, lp, 1119 wd->sc_dk.dk_cpulabel); 1120 if (errstring) { 1121 /* 1122 * This probably happened because the drive's default 1123 * geometry doesn't match the DOS geometry. We 1124 * assume the DOS geometry is now in the label and try 1125 * again. XXX This is a kluge. 1126 */ 1127 if (wd->drvp->state > RESET) { 1128 s = splbio(); 1129 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1130 splx(s); 1131 } 1132 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1133 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1134 } 1135 if (errstring) { 1136 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1137 return; 1138 } 1139 1140 if (wd->drvp->state > RESET) { 1141 s = splbio(); 1142 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1143 splx(s); 1144 } 1145 #ifdef HAS_BAD144_HANDLING 1146 if ((lp->d_flags & D_BADSECT) != 0) 1147 bad144intern(wd); 1148 #endif 1149 } 1150 1151 void 1152 wdperror(const struct wd_softc *wd) 1153 { 1154 static const char *const errstr0_3[] = {"address mark not found", 1155 "track 0 not found", "aborted command", "media change requested", 1156 "id not found", "media changed", "uncorrectable data error", 1157 "bad block detected"}; 1158 static const char *const errstr4_5[] = { 1159 "obsolete (address mark not found)", 1160 "no media/write protected", "aborted command", 1161 "media change requested", "id not found", "media changed", 1162 "uncorrectable data error", "interface CRC error"}; 1163 const char *const *errstr; 1164 int i; 1165 const char *sep = ""; 1166 1167 const char *devname = device_xname(wd->sc_dev); 1168 struct ata_drive_datas *drvp = wd->drvp; 1169 int errno = wd->sc_wdc_bio.r_error; 1170 1171 if (drvp->ata_vers >= 4) 1172 errstr = errstr4_5; 1173 else 1174 errstr = errstr0_3; 1175 1176 printf("%s: (", devname); 1177 1178 if (errno == 0) 1179 printf("error not notified"); 1180 1181 for (i = 0; i < 8; i++) { 1182 if (errno & (1 << i)) { 1183 printf("%s%s", sep, errstr[i]); 1184 sep = ", "; 1185 } 1186 } 1187 printf(")\n"); 1188 } 1189 1190 int 1191 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1192 { 1193 struct wd_softc *wd = 1194 device_lookup_private(&wd_cd, WDUNIT(dev)); 1195 int error, s; 1196 #ifdef __HAVE_OLD_DISKLABEL 1197 struct disklabel *newlabel = NULL; 1198 #endif 1199 1200 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1201 1202 if ((wd->sc_flags & WDF_LOADED) == 0) 1203 return EIO; 1204 1205 error = disk_ioctl(&wd->sc_dk, dev, xfer, addr, flag, l); 1206 if (error != EPASSTHROUGH) 1207 return error; 1208 1209 error = 0; 1210 switch (xfer) { 1211 #ifdef HAS_BAD144_HANDLING 1212 case DIOCSBAD: 1213 if ((flag & FWRITE) == 0) 1214 return EBADF; 1215 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1216 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1217 bad144intern(wd); 1218 return 0; 1219 #endif 1220 #ifdef WD_SOFTBADSECT 1221 case DIOCBSLIST : 1222 { 1223 uint32_t count, missing, skip; 1224 struct disk_badsecinfo dbsi; 1225 struct disk_badsectors *dbs; 1226 size_t available; 1227 uint8_t *laddr; 1228 1229 dbsi = *(struct disk_badsecinfo *)addr; 1230 missing = wd->sc_bscount; 1231 count = 0; 1232 available = dbsi.dbsi_bufsize; 1233 skip = dbsi.dbsi_skip; 1234 laddr = (uint8_t *)dbsi.dbsi_buffer; 1235 1236 /* 1237 * We start this loop with the expectation that all of the 1238 * entries will be missed and decrement this counter each 1239 * time we either skip over one (already copied out) or 1240 * we actually copy it back to user space. The structs 1241 * holding the bad sector information are copied directly 1242 * back to user space whilst the summary is returned via 1243 * the struct passed in via the ioctl. 1244 */ 1245 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1246 if (skip > 0) { 1247 missing--; 1248 skip--; 1249 continue; 1250 } 1251 if (available < sizeof(*dbs)) 1252 break; 1253 available -= sizeof(*dbs); 1254 copyout(dbs, laddr, sizeof(*dbs)); 1255 laddr += sizeof(*dbs); 1256 missing--; 1257 count++; 1258 } 1259 dbsi.dbsi_left = missing; 1260 dbsi.dbsi_copied = count; 1261 *(struct disk_badsecinfo *)addr = dbsi; 1262 return 0; 1263 } 1264 1265 case DIOCBSFLUSH : 1266 /* Clean out the bad sector list */ 1267 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1268 void *head = SLIST_FIRST(&wd->sc_bslist); 1269 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1270 free(head, M_TEMP); 1271 } 1272 wd->sc_bscount = 0; 1273 return 0; 1274 #endif 1275 1276 case DIOCWDINFO: 1277 case DIOCSDINFO: 1278 #ifdef __HAVE_OLD_DISKLABEL 1279 case ODIOCWDINFO: 1280 case ODIOCSDINFO: 1281 #endif 1282 { 1283 struct disklabel *lp; 1284 1285 if ((flag & FWRITE) == 0) 1286 return EBADF; 1287 1288 #ifdef __HAVE_OLD_DISKLABEL 1289 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1290 newlabel = malloc(sizeof *newlabel, M_TEMP, 1291 M_WAITOK | M_ZERO); 1292 if (newlabel == NULL) 1293 return EIO; 1294 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1295 lp = newlabel; 1296 } else 1297 #endif 1298 lp = (struct disklabel *)addr; 1299 1300 mutex_enter(&wd->sc_dk.dk_openlock); 1301 wd->sc_flags |= WDF_LABELLING; 1302 1303 error = setdisklabel(wd->sc_dk.dk_label, 1304 lp, /*wd->sc_dk.dk_openmask : */0, 1305 wd->sc_dk.dk_cpulabel); 1306 if (error == 0) { 1307 if (wd->drvp->state > RESET) { 1308 s = splbio(); 1309 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1310 splx(s); 1311 } 1312 if (xfer == DIOCWDINFO 1313 #ifdef __HAVE_OLD_DISKLABEL 1314 || xfer == ODIOCWDINFO 1315 #endif 1316 ) 1317 error = writedisklabel(WDLABELDEV(dev), 1318 wdstrategy, wd->sc_dk.dk_label, 1319 wd->sc_dk.dk_cpulabel); 1320 } 1321 1322 wd->sc_flags &= ~WDF_LABELLING; 1323 mutex_exit(&wd->sc_dk.dk_openlock); 1324 #ifdef __HAVE_OLD_DISKLABEL 1325 if (newlabel != NULL) 1326 free(newlabel, M_TEMP); 1327 #endif 1328 return error; 1329 } 1330 1331 case DIOCKLABEL: 1332 if (*(int *)addr) 1333 wd->sc_flags |= WDF_KLABEL; 1334 else 1335 wd->sc_flags &= ~WDF_KLABEL; 1336 return 0; 1337 1338 case DIOCWLABEL: 1339 if ((flag & FWRITE) == 0) 1340 return EBADF; 1341 if (*(int *)addr) 1342 wd->sc_flags |= WDF_WLABEL; 1343 else 1344 wd->sc_flags &= ~WDF_WLABEL; 1345 return 0; 1346 1347 case DIOCGDEFLABEL: 1348 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1349 return 0; 1350 #ifdef __HAVE_OLD_DISKLABEL 1351 case ODIOCGDEFLABEL: 1352 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1353 if (newlabel == NULL) 1354 return EIO; 1355 wdgetdefaultlabel(wd, newlabel); 1356 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1357 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1358 else 1359 error = ENOTTY; 1360 free(newlabel, M_TEMP); 1361 return error; 1362 #endif 1363 1364 #ifdef notyet 1365 case DIOCWFORMAT: 1366 if ((flag & FWRITE) == 0) 1367 return EBADF; 1368 { 1369 register struct format_op *fop; 1370 struct iovec aiov; 1371 struct uio auio; 1372 1373 fop = (struct format_op *)addr; 1374 aiov.iov_base = fop->df_buf; 1375 aiov.iov_len = fop->df_count; 1376 auio.uio_iov = &aiov; 1377 auio.uio_iovcnt = 1; 1378 auio.uio_resid = fop->df_count; 1379 auio.uio_offset = 1380 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1381 auio.uio_vmspace = l->l_proc->p_vmspace; 1382 error = physio(wdformat, NULL, dev, B_WRITE, wdminphys, 1383 &auio); 1384 fop->df_count -= auio.uio_resid; 1385 fop->df_reg[0] = wdc->sc_status; 1386 fop->df_reg[1] = wdc->sc_error; 1387 return error; 1388 } 1389 #endif 1390 case DIOCGCACHE: 1391 return wd_getcache(wd, (int *)addr); 1392 1393 case DIOCSCACHE: 1394 return wd_setcache(wd, *(int *)addr); 1395 1396 case DIOCCACHESYNC: 1397 return wd_flushcache(wd, AT_WAIT); 1398 1399 case ATAIOCCOMMAND: 1400 /* 1401 * Make sure this command is (relatively) safe first 1402 */ 1403 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1404 (flag & FWRITE) == 0) 1405 return (EBADF); 1406 { 1407 struct wd_ioctl *wi; 1408 atareq_t *atareq = (atareq_t *) addr; 1409 int error1; 1410 1411 wi = wi_get(); 1412 wi->wi_softc = wd; 1413 wi->wi_atareq = *atareq; 1414 1415 if (atareq->datalen && atareq->flags & 1416 (ATACMD_READ | ATACMD_WRITE)) { 1417 void *tbuf; 1418 if (atareq->datalen < DEV_BSIZE 1419 && atareq->command == WDCC_IDENTIFY) { 1420 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1421 wi->wi_iov.iov_base = tbuf; 1422 wi->wi_iov.iov_len = DEV_BSIZE; 1423 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1424 } else { 1425 tbuf = NULL; 1426 wi->wi_iov.iov_base = atareq->databuf; 1427 wi->wi_iov.iov_len = atareq->datalen; 1428 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1429 } 1430 wi->wi_uio.uio_iov = &wi->wi_iov; 1431 wi->wi_uio.uio_iovcnt = 1; 1432 wi->wi_uio.uio_resid = atareq->datalen; 1433 wi->wi_uio.uio_offset = 0; 1434 wi->wi_uio.uio_rw = 1435 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1436 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1437 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1438 wdminphys, &wi->wi_uio); 1439 if (tbuf != NULL && error1 == 0) { 1440 error1 = copyout(tbuf, atareq->databuf, 1441 atareq->datalen); 1442 free(tbuf, M_TEMP); 1443 } 1444 } else { 1445 /* No need to call physio if we don't have any 1446 user data */ 1447 wi->wi_bp.b_flags = 0; 1448 wi->wi_bp.b_data = 0; 1449 wi->wi_bp.b_bcount = 0; 1450 wi->wi_bp.b_dev = 0; 1451 wi->wi_bp.b_proc = l->l_proc; 1452 wdioctlstrategy(&wi->wi_bp); 1453 error1 = wi->wi_bp.b_error; 1454 } 1455 *atareq = wi->wi_atareq; 1456 wi_free(wi); 1457 return(error1); 1458 } 1459 1460 case DIOCGSTRATEGY: 1461 { 1462 struct disk_strategy *dks = (void *)addr; 1463 1464 s = splbio(); 1465 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1466 sizeof(dks->dks_name)); 1467 splx(s); 1468 dks->dks_paramlen = 0; 1469 1470 return 0; 1471 } 1472 1473 case DIOCSSTRATEGY: 1474 { 1475 struct disk_strategy *dks = (void *)addr; 1476 struct bufq_state *new; 1477 struct bufq_state *old; 1478 1479 if ((flag & FWRITE) == 0) { 1480 return EBADF; 1481 } 1482 if (dks->dks_param != NULL) { 1483 return EINVAL; 1484 } 1485 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1486 error = bufq_alloc(&new, dks->dks_name, 1487 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1488 if (error) { 1489 return error; 1490 } 1491 s = splbio(); 1492 old = wd->sc_q; 1493 bufq_move(new, old); 1494 wd->sc_q = new; 1495 splx(s); 1496 bufq_free(old); 1497 1498 return 0; 1499 } 1500 1501 default: 1502 return ENOTTY; 1503 } 1504 1505 #ifdef DIAGNOSTIC 1506 panic("wdioctl: impossible"); 1507 #endif 1508 } 1509 1510 static int 1511 wddiscard(dev_t dev, off_t pos, off_t len) 1512 { 1513 struct wd_softc *wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1514 daddr_t bno; 1515 long size, done; 1516 long maxatonce, amount; 1517 int result; 1518 1519 if (!(wd->sc_params.atap_ata_major & WDC_VER_ATA7) 1520 || !(wd->sc_params.support_dsm & ATA_SUPPORT_DSM_TRIM)) { 1521 /* not supported; ignore request */ 1522 ATADEBUG_PRINT(("wddiscard (unsupported)\n"), DEBUG_FUNCS); 1523 return 0; 1524 } 1525 maxatonce = 0xffff; /*wd->sc_params.max_dsm_blocks*/ 1526 1527 ATADEBUG_PRINT(("wddiscard\n"), DEBUG_FUNCS); 1528 1529 if ((wd->sc_flags & WDF_LOADED) == 0) 1530 return EIO; 1531 1532 /* round the start up and the end down */ 1533 bno = (pos + DEV_BSIZE - 1) >> DEV_BSHIFT; 1534 size = ((pos + len) >> DEV_BSHIFT) - bno; 1535 1536 done = 0; 1537 while (done < size) { 1538 amount = size - done; 1539 if (amount > maxatonce) { 1540 amount = maxatonce; 1541 } 1542 result = wd_trim(wd, WDPART(dev), bno + done, amount); 1543 if (result) { 1544 return result; 1545 } 1546 done += amount; 1547 } 1548 return 0; 1549 } 1550 1551 #ifdef B_FORMAT 1552 int 1553 wdformat(struct buf *bp) 1554 { 1555 1556 bp->b_flags |= B_FORMAT; 1557 return wdstrategy(bp); 1558 } 1559 #endif 1560 1561 int 1562 wdsize(dev_t dev) 1563 { 1564 struct wd_softc *wd; 1565 int part, omask; 1566 int size; 1567 1568 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1569 1570 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1571 if (wd == NULL) 1572 return (-1); 1573 1574 part = WDPART(dev); 1575 omask = wd->sc_dk.dk_openmask & (1 << part); 1576 1577 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1578 return (-1); 1579 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1580 size = -1; 1581 else 1582 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1583 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1584 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1585 return (-1); 1586 return (size); 1587 } 1588 1589 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1590 static int wddoingadump = 0; 1591 static int wddumprecalibrated = 0; 1592 1593 /* 1594 * Dump core after a system crash. 1595 */ 1596 int 1597 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1598 { 1599 struct wd_softc *wd; /* disk unit to do the I/O */ 1600 struct disklabel *lp; /* disk's disklabel */ 1601 int part, err; 1602 int nblks; /* total number of sectors left to write */ 1603 1604 /* Check if recursive dump; if so, punt. */ 1605 if (wddoingadump) 1606 return EFAULT; 1607 wddoingadump = 1; 1608 1609 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1610 if (wd == NULL) 1611 return (ENXIO); 1612 1613 part = WDPART(dev); 1614 1615 /* Convert to disk sectors. Request must be a multiple of size. */ 1616 lp = wd->sc_dk.dk_label; 1617 if ((size % lp->d_secsize) != 0) 1618 return EFAULT; 1619 nblks = size / lp->d_secsize; 1620 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1621 1622 /* Check transfer bounds against partition size. */ 1623 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1624 return EINVAL; 1625 1626 /* Offset block number to start of partition. */ 1627 blkno += lp->d_partitions[part].p_offset; 1628 1629 /* Recalibrate, if first dump transfer. */ 1630 if (wddumprecalibrated == 0) { 1631 wddumprecalibrated = 1; 1632 (*wd->atabus->ata_reset_drive)(wd->drvp, 1633 AT_POLL | AT_RST_EMERG, NULL); 1634 wd->drvp->state = RESET; 1635 } 1636 1637 wd->sc_bp = NULL; 1638 wd->sc_wdc_bio.blkno = blkno; 1639 wd->sc_wdc_bio.flags = ATA_POLL; 1640 if (wd->sc_flags & WDF_LBA48 && 1641 (wd->sc_wdc_bio.blkno + nblks) > wd->sc_capacity28) 1642 wd->sc_wdc_bio.flags |= ATA_LBA48; 1643 if (wd->sc_flags & WDF_LBA) 1644 wd->sc_wdc_bio.flags |= ATA_LBA; 1645 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1646 wd->sc_wdc_bio.databuf = va; 1647 #ifndef WD_DUMP_NOT_TRUSTED 1648 switch (err = wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1649 case ATACMD_TRY_AGAIN: 1650 panic("wddump: try again"); 1651 break; 1652 case ATACMD_QUEUED: 1653 panic("wddump: polled command has been queued"); 1654 break; 1655 case ATACMD_COMPLETE: 1656 break; 1657 default: 1658 panic("wddump: unknown atacmd code %d", err); 1659 } 1660 switch(err = wd->sc_wdc_bio.error) { 1661 case TIMEOUT: 1662 printf("wddump: device timed out"); 1663 err = EIO; 1664 break; 1665 case ERR_DF: 1666 printf("wddump: drive fault"); 1667 err = EIO; 1668 break; 1669 case ERR_DMA: 1670 printf("wddump: DMA error"); 1671 err = EIO; 1672 break; 1673 case ERROR: 1674 printf("wddump: "); 1675 wdperror(wd); 1676 err = EIO; 1677 break; 1678 case NOERROR: 1679 err = 0; 1680 break; 1681 default: 1682 panic("wddump: unknown error type %d", err); 1683 } 1684 if (err != 0) { 1685 printf("\n"); 1686 return err; 1687 } 1688 #else /* WD_DUMP_NOT_TRUSTED */ 1689 /* Let's just talk about this first... */ 1690 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1691 unit, va, cylin, head, sector); 1692 delay(500 * 1000); /* half a second */ 1693 #endif 1694 1695 wddoingadump = 0; 1696 return 0; 1697 } 1698 1699 #ifdef HAS_BAD144_HANDLING 1700 /* 1701 * Internalize the bad sector table. 1702 */ 1703 void 1704 bad144intern(struct wd_softc *wd) 1705 { 1706 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1707 struct disklabel *lp = wd->sc_dk.dk_label; 1708 int i = 0; 1709 1710 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1711 1712 for (; i < NBT_BAD; i++) { 1713 if (bt->bt_bad[i].bt_cyl == 0xffff) 1714 break; 1715 wd->sc_badsect[i] = 1716 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1717 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1718 (bt->bt_bad[i].bt_trksec & 0xff); 1719 } 1720 for (; i < NBT_BAD+1; i++) 1721 wd->sc_badsect[i] = -1; 1722 } 1723 #endif 1724 1725 static void 1726 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1727 { 1728 struct disk_geom *dg = &wd->sc_dk.dk_geom; 1729 1730 memset(dg, 0, sizeof(*dg)); 1731 1732 dg->dg_secperunit = wd->sc_capacity; 1733 dg->dg_secsize = DEV_BSIZE /* XXX 512? */; 1734 dg->dg_nsectors = wd->sc_params.atap_sectors; 1735 dg->dg_ntracks = wd->sc_params.atap_heads; 1736 if ((wd->sc_flags & WDF_LBA) == 0) 1737 dg->dg_ncylinders = wd->sc_params.atap_cylinders; 1738 1739 /* XXX Should have a case for ATA here, too. */ 1740 const char *cp = strcmp(wd->sc_params.atap_model, "ST506") ? 1741 "ST506" : "ESDI"; 1742 1743 disk_set_info(wd->sc_dev, &wd->sc_dk, cp); 1744 } 1745 1746 int 1747 wd_get_params(struct wd_softc *wd, uint8_t flags, struct ataparams *params) 1748 { 1749 1750 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1751 case CMD_AGAIN: 1752 return 1; 1753 case CMD_ERR: 1754 if (wd->drvp->drive_type != ATA_DRIVET_OLD) 1755 return 1; 1756 /* 1757 * We `know' there's a drive here; just assume it's old. 1758 * This geometry is only used to read the MBR and print a 1759 * (false) attach message. 1760 */ 1761 strncpy(params->atap_model, "ST506", 1762 sizeof params->atap_model); 1763 params->atap_config = ATA_CFG_FIXED; 1764 params->atap_cylinders = 1024; 1765 params->atap_heads = 8; 1766 params->atap_sectors = 17; 1767 params->atap_multi = 1; 1768 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1769 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1770 /* FALLTHROUGH */ 1771 case CMD_OK: 1772 wd_params_to_properties(wd, params); 1773 return 0; 1774 default: 1775 panic("wd_get_params: bad return code from ata_get_params"); 1776 /* NOTREACHED */ 1777 } 1778 } 1779 1780 int 1781 wd_getcache(struct wd_softc *wd, int *bitsp) 1782 { 1783 struct ataparams params; 1784 1785 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1786 return EIO; 1787 if (params.atap_cmd_set1 == 0x0000 || 1788 params.atap_cmd_set1 == 0xffff || 1789 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1790 *bitsp = 0; 1791 return 0; 1792 } 1793 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1794 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1795 *bitsp |= DKCACHE_WRITE; 1796 1797 return 0; 1798 } 1799 1800 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1801 1802 int 1803 wd_setcache(struct wd_softc *wd, int bits) 1804 { 1805 struct ataparams params; 1806 struct ata_command ata_c; 1807 1808 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1809 return EIO; 1810 1811 if (params.atap_cmd_set1 == 0x0000 || 1812 params.atap_cmd_set1 == 0xffff || 1813 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1814 return EOPNOTSUPP; 1815 1816 if ((bits & DKCACHE_READ) == 0 || 1817 (bits & DKCACHE_SAVE) != 0) 1818 return EOPNOTSUPP; 1819 1820 memset(&ata_c, 0, sizeof(struct ata_command)); 1821 ata_c.r_command = SET_FEATURES; 1822 ata_c.r_st_bmask = 0; 1823 ata_c.r_st_pmask = 0; 1824 ata_c.timeout = 30000; /* 30s timeout */ 1825 ata_c.flags = AT_WAIT; 1826 if (bits & DKCACHE_WRITE) 1827 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1828 else 1829 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1830 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1831 aprint_error_dev(wd->sc_dev, 1832 "wd_setcache command not complete\n"); 1833 return EIO; 1834 } 1835 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1836 char sbuf[sizeof(at_errbits) + 64]; 1837 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1838 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1839 return EIO; 1840 } 1841 return 0; 1842 } 1843 1844 static int 1845 wd_standby(struct wd_softc *wd, int flags) 1846 { 1847 struct ata_command ata_c; 1848 1849 memset(&ata_c, 0, sizeof(struct ata_command)); 1850 ata_c.r_command = WDCC_STANDBY_IMMED; 1851 ata_c.r_st_bmask = WDCS_DRDY; 1852 ata_c.r_st_pmask = WDCS_DRDY; 1853 ata_c.flags = flags; 1854 ata_c.timeout = 30000; /* 30s timeout */ 1855 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1856 aprint_error_dev(wd->sc_dev, 1857 "standby immediate command didn't complete\n"); 1858 return EIO; 1859 } 1860 if (ata_c.flags & AT_ERROR) { 1861 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1862 return ENODEV; 1863 } 1864 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1865 char sbuf[sizeof(at_errbits) + 64]; 1866 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1867 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1868 return EIO; 1869 } 1870 return 0; 1871 } 1872 1873 int 1874 wd_flushcache(struct wd_softc *wd, int flags) 1875 { 1876 struct ata_command ata_c; 1877 1878 /* 1879 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1880 * only ATA-2 and still support it. 1881 */ 1882 if (wd->drvp->ata_vers < 4 && 1883 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1884 wd->sc_params.atap_cmd_set2 == 0xffff)) 1885 return ENODEV; 1886 memset(&ata_c, 0, sizeof(struct ata_command)); 1887 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1888 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) { 1889 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1890 flags |= AT_LBA48; 1891 } else 1892 ata_c.r_command = WDCC_FLUSHCACHE; 1893 ata_c.r_st_bmask = WDCS_DRDY; 1894 ata_c.r_st_pmask = WDCS_DRDY; 1895 ata_c.flags = flags | AT_READREG; 1896 ata_c.timeout = 300000; /* 5m timeout */ 1897 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1898 aprint_error_dev(wd->sc_dev, 1899 "flush cache command didn't complete\n"); 1900 return EIO; 1901 } 1902 if (ata_c.flags & AT_ERROR) { 1903 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1904 return ENODEV; 1905 } 1906 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1907 char sbuf[sizeof(at_errbits) + 64]; 1908 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1909 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1910 sbuf); 1911 return EIO; 1912 } 1913 return 0; 1914 } 1915 1916 int 1917 wd_trim(struct wd_softc *wd, int part, daddr_t bno, long size) 1918 { 1919 struct ata_command ata_c; 1920 unsigned char *req; 1921 1922 if (part != RAW_PART) 1923 bno += wd->sc_dk.dk_label->d_partitions[part].p_offset;; 1924 1925 req = kmem_zalloc(512, KM_SLEEP); 1926 req[0] = bno & 0xff; 1927 req[1] = (bno >> 8) & 0xff; 1928 req[2] = (bno >> 16) & 0xff; 1929 req[3] = (bno >> 24) & 0xff; 1930 req[4] = (bno >> 32) & 0xff; 1931 req[5] = (bno >> 40) & 0xff; 1932 req[6] = size & 0xff; 1933 req[7] = (size >> 8) & 0xff; 1934 1935 memset(&ata_c, 0, sizeof(struct ata_command)); 1936 ata_c.r_command = ATA_DATA_SET_MANAGEMENT; 1937 ata_c.r_count = 1; 1938 ata_c.r_features = ATA_SUPPORT_DSM_TRIM; 1939 ata_c.r_st_bmask = WDCS_DRDY; 1940 ata_c.r_st_pmask = WDCS_DRDY; 1941 ata_c.timeout = 30000; /* 30s timeout */ 1942 ata_c.data = req; 1943 ata_c.bcount = 512; 1944 ata_c.flags |= AT_WRITE | AT_WAIT; 1945 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1946 aprint_error_dev(wd->sc_dev, 1947 "trim command didn't complete\n"); 1948 kmem_free(req, 512); 1949 return EIO; 1950 } 1951 kmem_free(req, 512); 1952 if (ata_c.flags & AT_ERROR) { 1953 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1954 return ENODEV; 1955 } 1956 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1957 char sbuf[sizeof(at_errbits) + 64]; 1958 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1959 aprint_error_dev(wd->sc_dev, "wd_trim: status=%s\n", 1960 sbuf); 1961 return EIO; 1962 } 1963 return 0; 1964 } 1965 1966 bool 1967 wd_shutdown(device_t dev, int how) 1968 { 1969 struct wd_softc *wd = device_private(dev); 1970 1971 /* the adapter needs to be enabled */ 1972 if (wd->atabus->ata_addref(wd->drvp)) 1973 return true; /* no need to complain */ 1974 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 if ((wi->wi_atareq.flags & ATACMD_LBA) != 0) 2112 ata_c.flags |= AT_LBA; 2113 2114 ata_c.flags |= AT_WAIT; 2115 2116 ata_c.timeout = wi->wi_atareq.timeout; 2117 ata_c.r_command = wi->wi_atareq.command; 2118 ata_c.r_lba = ((wi->wi_atareq.head & 0x0f) << 24) | 2119 (wi->wi_atareq.cylinder << 8) | 2120 wi->wi_atareq.sec_num; 2121 ata_c.r_count = wi->wi_atareq.sec_count; 2122 ata_c.r_features = wi->wi_atareq.features; 2123 ata_c.r_st_bmask = WDCS_DRDY; 2124 ata_c.r_st_pmask = WDCS_DRDY; 2125 ata_c.data = wi->wi_bp.b_data; 2126 ata_c.bcount = wi->wi_bp.b_bcount; 2127 2128 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2129 != ATACMD_COMPLETE) { 2130 wi->wi_atareq.retsts = ATACMD_ERROR; 2131 goto bad; 2132 } 2133 2134 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2135 if (ata_c.flags & AT_ERROR) { 2136 wi->wi_atareq.retsts = ATACMD_ERROR; 2137 wi->wi_atareq.error = ata_c.r_error; 2138 } else if (ata_c.flags & AT_DF) 2139 wi->wi_atareq.retsts = ATACMD_DF; 2140 else 2141 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2142 } else { 2143 wi->wi_atareq.retsts = ATACMD_OK; 2144 if (wi->wi_atareq.flags & ATACMD_READREG) { 2145 wi->wi_atareq.command = ata_c.r_status; 2146 wi->wi_atareq.features = ata_c.r_error; 2147 wi->wi_atareq.sec_count = ata_c.r_count; 2148 wi->wi_atareq.sec_num = ata_c.r_lba & 0xff; 2149 wi->wi_atareq.head = (ata_c.r_device & 0xf0) | 2150 ((ata_c.r_lba >> 24) & 0x0f); 2151 wi->wi_atareq.cylinder = (ata_c.r_lba >> 8) & 0xffff; 2152 wi->wi_atareq.error = ata_c.r_error; 2153 } 2154 } 2155 2156 bp->b_error = 0; 2157 biodone(bp); 2158 return; 2159 bad: 2160 bp->b_error = error; 2161 bp->b_resid = bp->b_bcount; 2162 biodone(bp); 2163 } 2164
Indexes created Sat Sep 27 14:09:57 GMT 2025