wd.c revision 1.412.2.2
1 /* $NetBSD: wd.c,v 1.412.2.2 2016/07/05 19:09:17 snj 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 1.412.2.2 2016/07/05 19:09:17 snj 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 *, u_int8_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 ((u_int64_t) wd->sc_params.atap_max_lba[3] << 48) | 372 ((u_int64_t) wd->sc_params.atap_max_lba[2] << 32) | 373 ((u_int64_t) wd->sc_params.atap_max_lba[1] << 16) | 374 ((u_int64_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 if (flags & DETACH_POWEROFF) 468 wd_standby(sc, AT_POLL); 469 470 splx(s); 471 472 /* Detach disk. */ 473 disk_detach(&sc->sc_dk); 474 disk_destroy(&sc->sc_dk); 475 476 #ifdef WD_SOFTBADSECT 477 /* Clean out the bad sector list */ 478 while (!SLIST_EMPTY(&sc->sc_bslist)) { 479 void *head = SLIST_FIRST(&sc->sc_bslist); 480 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 481 free(head, M_TEMP); 482 } 483 sc->sc_bscount = 0; 484 #endif 485 486 pmf_device_deregister(self); 487 488 /* Unhook the entropy source. */ 489 rnd_detach_source(&sc->rnd_source); 490 491 callout_destroy(&sc->sc_restart_ch); 492 493 sc->drvp->drive_type = ATA_DRIVET_NONE; /* no drive any more here */ 494 sc->drvp->drive_flags = 0; 495 496 return (0); 497 } 498 499 /* 500 * Read/write routine for a buffer. Validates the arguments and schedules the 501 * transfer. Does not wait for the transfer to complete. 502 */ 503 void 504 wdstrategy(struct buf *bp) 505 { 506 struct wd_softc *wd = 507 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 508 struct disklabel *lp = wd->sc_dk.dk_label; 509 daddr_t blkno; 510 int s; 511 512 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 513 DEBUG_XFERS); 514 515 /* Valid request? */ 516 if (bp->b_blkno < 0 || 517 (bp->b_bcount % lp->d_secsize) != 0 || 518 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 519 bp->b_error = EINVAL; 520 goto done; 521 } 522 523 /* If device invalidated (e.g. media change, door open, 524 * device detachment), then error. 525 */ 526 if ((wd->sc_flags & WDF_LOADED) == 0 || 527 !device_is_enabled(wd->sc_dev)) { 528 bp->b_error = EIO; 529 goto done; 530 } 531 532 /* If it's a null transfer, return immediately. */ 533 if (bp->b_bcount == 0) 534 goto done; 535 536 /* 537 * Do bounds checking, adjust transfer. if error, process. 538 * If end of partition, just return. 539 */ 540 if (WDPART(bp->b_dev) == RAW_PART) { 541 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 542 wd->sc_capacity) <= 0) 543 goto done; 544 } else { 545 if (bounds_check_with_label(&wd->sc_dk, bp, 546 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 547 goto done; 548 } 549 550 /* 551 * Now convert the block number to absolute and put it in 552 * terms of the device's logical block size. 553 */ 554 if (lp->d_secsize >= DEV_BSIZE) 555 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 556 else 557 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 558 559 if (WDPART(bp->b_dev) != RAW_PART) 560 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 561 562 bp->b_rawblkno = blkno; 563 564 #ifdef WD_SOFTBADSECT 565 /* 566 * If the transfer about to be attempted contains only a block that 567 * is known to be bad then return an error for the transfer without 568 * even attempting to start a transfer up under the premis that we 569 * will just end up doing more retries for a transfer that will end 570 * up failing again. 571 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 572 */ 573 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 574 struct disk_badsectors *dbs; 575 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 576 577 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 578 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 579 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 580 bp->b_error = EIO; 581 goto done; 582 } 583 } 584 #endif 585 586 /* Queue transfer on drive, activate drive and controller if idle. */ 587 s = splbio(); 588 bufq_put(wd->sc_q, bp); 589 wdstart(wd); 590 splx(s); 591 return; 592 done: 593 /* Toss transfer; we're done early. */ 594 bp->b_resid = bp->b_bcount; 595 biodone(bp); 596 } 597 598 /* 599 * Queue a drive for I/O. 600 */ 601 void 602 wdstart(void *arg) 603 { 604 struct wd_softc *wd = arg; 605 struct buf *bp = NULL; 606 607 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 608 DEBUG_XFERS); 609 610 if (!device_is_active(wd->sc_dev)) 611 return; 612 613 while (wd->openings > 0) { 614 615 /* Is there a buf for us ? */ 616 if ((bp = bufq_get(wd->sc_q)) == NULL) 617 return; 618 619 /* 620 * Make the command. First lock the device 621 */ 622 wd->openings--; 623 624 wd->retries = 0; 625 wdstart1(wd, bp); 626 } 627 } 628 629 static void 630 wd_split_mod15_write(struct buf *bp) 631 { 632 struct buf *obp = bp->b_private; 633 struct wd_softc *sc = 634 device_lookup_private(&wd_cd, DISKUNIT(obp->b_dev)); 635 int s; 636 637 if (__predict_false(bp->b_error != 0)) { 638 /* 639 * Propagate the error. If this was the first half of 640 * the original transfer, make sure to account for that 641 * in the residual. 642 */ 643 if (bp->b_data == obp->b_data) 644 bp->b_resid += bp->b_bcount; 645 goto done; 646 } 647 648 /* 649 * If this was the second half of the transfer, we're all done! 650 */ 651 if (bp->b_data != obp->b_data) 652 goto done; 653 654 /* 655 * Advance the pointer to the second half and issue that command 656 * using the same opening. 657 */ 658 bp->b_flags = obp->b_flags; 659 bp->b_oflags = obp->b_oflags; 660 bp->b_cflags = obp->b_cflags; 661 bp->b_data = (char *)bp->b_data + bp->b_bcount; 662 bp->b_blkno += (bp->b_bcount / 512); 663 bp->b_rawblkno += (bp->b_bcount / 512); 664 s = splbio(); 665 wdstart1(sc, bp); 666 splx(s); 667 return; 668 669 done: 670 obp->b_error = bp->b_error; 671 obp->b_resid = bp->b_resid; 672 s = splbio(); 673 putiobuf(bp); 674 biodone(obp); 675 sc->openings++; 676 splx(s); 677 /* wddone() will call wdstart() */ 678 } 679 680 void 681 wdstart1(struct wd_softc *wd, struct buf *bp) 682 { 683 684 /* 685 * Deal with the "split mod15 write" quirk. We just divide the 686 * transfer in two, doing the first half and then then second half 687 * with the same command opening. 688 * 689 * Note we MUST do this here, because we can't let insertion 690 * into the bufq cause the transfers to be re-merged. 691 */ 692 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 693 (bp->b_flags & B_READ) == 0 && 694 bp->b_bcount > 512 && 695 ((bp->b_bcount / 512) % 15) == 1)) { 696 struct buf *nbp; 697 698 /* already at splbio */ 699 nbp = getiobuf(NULL, false); 700 if (__predict_false(nbp == NULL)) { 701 /* No memory -- fail the iop. */ 702 bp->b_error = ENOMEM; 703 bp->b_resid = bp->b_bcount; 704 biodone(bp); 705 wd->openings++; 706 return; 707 } 708 709 nbp->b_error = 0; 710 nbp->b_proc = bp->b_proc; 711 nbp->b_dev = bp->b_dev; 712 713 nbp->b_bcount = bp->b_bcount / 2; 714 nbp->b_bufsize = bp->b_bcount / 2; 715 nbp->b_data = bp->b_data; 716 717 nbp->b_blkno = bp->b_blkno; 718 nbp->b_rawblkno = bp->b_rawblkno; 719 720 nbp->b_flags = bp->b_flags; 721 nbp->b_oflags = bp->b_oflags; 722 nbp->b_cflags = bp->b_cflags; 723 nbp->b_iodone = wd_split_mod15_write; 724 725 /* Put ptr to orig buf in b_private and use new buf */ 726 nbp->b_private = bp; 727 728 BIO_COPYPRIO(nbp, bp); 729 730 bp = nbp; 731 } 732 733 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 734 wd->sc_wdc_bio.bcount = bp->b_bcount; 735 wd->sc_wdc_bio.databuf = bp->b_data; 736 wd->sc_wdc_bio.blkdone =0; 737 KASSERT(bp == wd->sc_bp || wd->sc_bp == NULL); 738 wd->sc_bp = bp; 739 /* 740 * If we're retrying, retry in single-sector mode. This will give us 741 * the sector number of the problem, and will eventually allow the 742 * transfer to succeed. 743 */ 744 if (wd->retries >= WDIORETRIES_SINGLE) 745 wd->sc_wdc_bio.flags = ATA_SINGLE; 746 else 747 wd->sc_wdc_bio.flags = 0; 748 if (wd->sc_flags & WDF_LBA48 && 749 (wd->sc_wdc_bio.blkno + 750 wd->sc_wdc_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 751 wd->sc_capacity28) 752 wd->sc_wdc_bio.flags |= ATA_LBA48; 753 if (wd->sc_flags & WDF_LBA) 754 wd->sc_wdc_bio.flags |= ATA_LBA; 755 if (bp->b_flags & B_READ) 756 wd->sc_wdc_bio.flags |= ATA_READ; 757 /* Instrumentation. */ 758 disk_busy(&wd->sc_dk); 759 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 760 case ATACMD_TRY_AGAIN: 761 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 762 break; 763 case ATACMD_QUEUED: 764 case ATACMD_COMPLETE: 765 break; 766 default: 767 panic("wdstart1: bad return code from ata_bio()"); 768 } 769 } 770 771 void 772 wddone(void *v) 773 { 774 struct wd_softc *wd = device_private(v); 775 struct buf *bp = wd->sc_bp; 776 const char *errmsg; 777 int do_perror = 0; 778 779 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 780 DEBUG_XFERS); 781 if (bp == NULL) 782 return; 783 bp->b_resid = wd->sc_wdc_bio.bcount; 784 switch (wd->sc_wdc_bio.error) { 785 case ERR_DMA: 786 errmsg = "DMA error"; 787 goto retry; 788 case ERR_DF: 789 errmsg = "device fault"; 790 goto retry; 791 case TIMEOUT: 792 errmsg = "device timeout"; 793 goto retry; 794 case ERR_RESET: 795 errmsg = "channel reset"; 796 goto retry2; 797 case ERROR: 798 /* Don't care about media change bits */ 799 if (wd->sc_wdc_bio.r_error != 0 && 800 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 801 goto noerror; 802 errmsg = "error"; 803 do_perror = 1; 804 retry: /* Just reset and retry. Can we do more ? */ 805 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD, NULL); 806 retry2: 807 diskerr(bp, "wd", errmsg, LOG_PRINTF, 808 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 809 if (wd->retries < WDIORETRIES) 810 printf(", retrying"); 811 printf("\n"); 812 if (do_perror) 813 wdperror(wd); 814 if (wd->retries < WDIORETRIES) { 815 wd->retries++; 816 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 817 wdrestart, wd); 818 return; 819 } 820 821 #ifdef WD_SOFTBADSECT 822 /* 823 * Not all errors indicate a failed block but those that do, 824 * put the block on the bad-block list for the device. Only 825 * do this for reads because the drive should do it for writes, 826 * itself, according to Manuel. 827 */ 828 if ((bp->b_flags & B_READ) && 829 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 830 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 831 struct disk_badsectors *dbs; 832 833 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 834 dbs->dbs_min = bp->b_rawblkno; 835 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 836 microtime(&dbs->dbs_failedat); 837 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 838 wd->sc_bscount++; 839 } 840 #endif 841 bp->b_error = EIO; 842 break; 843 case NOERROR: 844 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 845 aprint_error_dev(wd->sc_dev, 846 "soft error (corrected)\n"); 847 break; 848 case ERR_NODEV: 849 bp->b_error = EIO; 850 break; 851 } 852 if (__predict_false(bp->b_error != 0) && bp->b_resid == 0) { 853 /* 854 * the disk or controller sometimes report a complete 855 * xfer, when there has been an error. This is wrong, 856 * assume nothing got transfered in this case 857 */ 858 bp->b_resid = bp->b_bcount; 859 } 860 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 861 (bp->b_flags & B_READ)); 862 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 863 /* XXX Yuck, but we don't want to increment openings in this case */ 864 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 865 biodone(bp); 866 else { 867 biodone(bp); 868 wd->openings++; 869 } 870 KASSERT(wd->sc_bp != NULL); 871 wd->sc_bp = NULL; 872 wdstart(wd); 873 } 874 875 void 876 wdrestart(void *v) 877 { 878 struct wd_softc *wd = v; 879 struct buf *bp = wd->sc_bp; 880 int s; 881 882 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 883 DEBUG_XFERS); 884 s = splbio(); 885 wdstart1(v, bp); 886 splx(s); 887 } 888 889 static void 890 wdminphys(struct buf *bp) 891 { 892 893 if (bp->b_bcount > (512 * 128)) { 894 bp->b_bcount = (512 * 128); 895 } 896 minphys(bp); 897 } 898 899 int 900 wdread(dev_t dev, struct uio *uio, int flags) 901 { 902 903 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 904 return (physio(wdstrategy, NULL, dev, B_READ, wdminphys, uio)); 905 } 906 907 int 908 wdwrite(dev_t dev, struct uio *uio, int flags) 909 { 910 911 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 912 return (physio(wdstrategy, NULL, dev, B_WRITE, wdminphys, uio)); 913 } 914 915 int 916 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 917 { 918 struct wd_softc *wd; 919 int part, error; 920 921 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 922 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 923 if (wd == NULL) 924 return (ENXIO); 925 926 if (! device_is_active(wd->sc_dev)) 927 return (ENODEV); 928 929 if (wd->sc_capacity == 0) 930 return (ENODEV); 931 932 part = WDPART(dev); 933 934 mutex_enter(&wd->sc_dk.dk_openlock); 935 936 /* 937 * If there are wedges, and this is not RAW_PART, then we 938 * need to fail. 939 */ 940 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 941 error = EBUSY; 942 goto bad1; 943 } 944 945 /* 946 * If this is the first open of this device, add a reference 947 * to the adapter. 948 */ 949 if (wd->sc_dk.dk_openmask == 0 && 950 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 951 goto bad1; 952 953 if (wd->sc_dk.dk_openmask != 0) { 954 /* 955 * If any partition is open, but the disk has been invalidated, 956 * disallow further opens. 957 */ 958 if ((wd->sc_flags & WDF_LOADED) == 0) { 959 error = EIO; 960 goto bad2; 961 } 962 } else { 963 if ((wd->sc_flags & WDF_LOADED) == 0) { 964 965 /* Load the physical device parameters. */ 966 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 967 aprint_error_dev(wd->sc_dev, 968 "IDENTIFY failed\n"); 969 error = EIO; 970 goto bad2; 971 } 972 wd->sc_flags |= WDF_LOADED; 973 /* Load the partition info if not already loaded. */ 974 wdgetdisklabel(wd); 975 } 976 } 977 978 /* Check that the partition exists. */ 979 if (part != RAW_PART && 980 (part >= wd->sc_dk.dk_label->d_npartitions || 981 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 982 error = ENXIO; 983 goto bad2; 984 } 985 986 /* Insure only one open at a time. */ 987 switch (fmt) { 988 case S_IFCHR: 989 wd->sc_dk.dk_copenmask |= (1 << part); 990 break; 991 case S_IFBLK: 992 wd->sc_dk.dk_bopenmask |= (1 << part); 993 break; 994 } 995 wd->sc_dk.dk_openmask = 996 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 997 998 mutex_exit(&wd->sc_dk.dk_openlock); 999 return 0; 1000 1001 bad2: 1002 if (wd->sc_dk.dk_openmask == 0) 1003 wd->atabus->ata_delref(wd->drvp); 1004 bad1: 1005 mutex_exit(&wd->sc_dk.dk_openlock); 1006 return error; 1007 } 1008 1009 /* 1010 * Caller must hold wd->sc_dk.dk_openlock. 1011 */ 1012 static int 1013 wdlastclose(device_t self) 1014 { 1015 struct wd_softc *wd = device_private(self); 1016 1017 wd_flushcache(wd, AT_WAIT); 1018 1019 if (! (wd->sc_flags & WDF_KLABEL)) 1020 wd->sc_flags &= ~WDF_LOADED; 1021 1022 wd->atabus->ata_delref(wd->drvp); 1023 1024 return 0; 1025 } 1026 1027 int 1028 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1029 { 1030 struct wd_softc *wd = 1031 device_lookup_private(&wd_cd, WDUNIT(dev)); 1032 int part = WDPART(dev); 1033 1034 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1035 1036 mutex_enter(&wd->sc_dk.dk_openlock); 1037 1038 switch (fmt) { 1039 case S_IFCHR: 1040 wd->sc_dk.dk_copenmask &= ~(1 << part); 1041 break; 1042 case S_IFBLK: 1043 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1044 break; 1045 } 1046 wd->sc_dk.dk_openmask = 1047 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1048 1049 if (wd->sc_dk.dk_openmask == 0) 1050 wdlastclose(wd->sc_dev); 1051 1052 mutex_exit(&wd->sc_dk.dk_openlock); 1053 return 0; 1054 } 1055 1056 void 1057 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1058 { 1059 1060 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1061 memset(lp, 0, sizeof(struct disklabel)); 1062 1063 lp->d_secsize = DEV_BSIZE; 1064 lp->d_ntracks = wd->sc_params.atap_heads; 1065 lp->d_nsectors = wd->sc_params.atap_sectors; 1066 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1067 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1068 wd->sc_params.atap_cylinders; 1069 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1070 1071 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1072 lp->d_type = DTYPE_ST506; 1073 else 1074 lp->d_type = DTYPE_ESDI; 1075 1076 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1077 strncpy(lp->d_packname, "fictitious", 16); 1078 if (wd->sc_capacity > UINT32_MAX) 1079 lp->d_secperunit = UINT32_MAX; 1080 else 1081 lp->d_secperunit = wd->sc_capacity; 1082 lp->d_rpm = 3600; 1083 lp->d_interleave = 1; 1084 lp->d_flags = 0; 1085 1086 lp->d_partitions[RAW_PART].p_offset = 0; 1087 lp->d_partitions[RAW_PART].p_size = 1088 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1089 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1090 lp->d_npartitions = RAW_PART + 1; 1091 1092 lp->d_magic = DISKMAGIC; 1093 lp->d_magic2 = DISKMAGIC; 1094 lp->d_checksum = dkcksum(lp); 1095 } 1096 1097 /* 1098 * Fabricate a default disk label, and try to read the correct one. 1099 */ 1100 void 1101 wdgetdisklabel(struct wd_softc *wd) 1102 { 1103 struct disklabel *lp = wd->sc_dk.dk_label; 1104 const char *errstring; 1105 int s; 1106 1107 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1108 1109 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1110 1111 wdgetdefaultlabel(wd, lp); 1112 1113 wd->sc_badsect[0] = -1; 1114 1115 if (wd->drvp->state > RESET) { 1116 s = splbio(); 1117 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1118 splx(s); 1119 } 1120 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1121 RAW_PART), wdstrategy, lp, 1122 wd->sc_dk.dk_cpulabel); 1123 if (errstring) { 1124 /* 1125 * This probably happened because the drive's default 1126 * geometry doesn't match the DOS geometry. We 1127 * assume the DOS geometry is now in the label and try 1128 * again. XXX This is a kluge. 1129 */ 1130 if (wd->drvp->state > RESET) { 1131 s = splbio(); 1132 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1133 splx(s); 1134 } 1135 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1136 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1137 } 1138 if (errstring) { 1139 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1140 return; 1141 } 1142 1143 if (wd->drvp->state > RESET) { 1144 s = splbio(); 1145 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1146 splx(s); 1147 } 1148 #ifdef HAS_BAD144_HANDLING 1149 if ((lp->d_flags & D_BADSECT) != 0) 1150 bad144intern(wd); 1151 #endif 1152 } 1153 1154 void 1155 wdperror(const struct wd_softc *wd) 1156 { 1157 static const char *const errstr0_3[] = {"address mark not found", 1158 "track 0 not found", "aborted command", "media change requested", 1159 "id not found", "media changed", "uncorrectable data error", 1160 "bad block detected"}; 1161 static const char *const errstr4_5[] = { 1162 "obsolete (address mark not found)", 1163 "no media/write protected", "aborted command", 1164 "media change requested", "id not found", "media changed", 1165 "uncorrectable data error", "interface CRC error"}; 1166 const char *const *errstr; 1167 int i; 1168 const char *sep = ""; 1169 1170 const char *devname = device_xname(wd->sc_dev); 1171 struct ata_drive_datas *drvp = wd->drvp; 1172 int errno = wd->sc_wdc_bio.r_error; 1173 1174 if (drvp->ata_vers >= 4) 1175 errstr = errstr4_5; 1176 else 1177 errstr = errstr0_3; 1178 1179 printf("%s: (", devname); 1180 1181 if (errno == 0) 1182 printf("error not notified"); 1183 1184 for (i = 0; i < 8; i++) { 1185 if (errno & (1 << i)) { 1186 printf("%s%s", sep, errstr[i]); 1187 sep = ", "; 1188 } 1189 } 1190 printf(")\n"); 1191 } 1192 1193 int 1194 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1195 { 1196 struct wd_softc *wd = 1197 device_lookup_private(&wd_cd, WDUNIT(dev)); 1198 int error, s; 1199 #ifdef __HAVE_OLD_DISKLABEL 1200 struct disklabel *newlabel = NULL; 1201 #endif 1202 1203 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1204 1205 if ((wd->sc_flags & WDF_LOADED) == 0) 1206 return EIO; 1207 1208 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1209 if (error != EPASSTHROUGH) 1210 return (error); 1211 1212 error = 0; 1213 switch (xfer) { 1214 #ifdef HAS_BAD144_HANDLING 1215 case DIOCSBAD: 1216 if ((flag & FWRITE) == 0) 1217 return EBADF; 1218 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1219 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1220 bad144intern(wd); 1221 return 0; 1222 #endif 1223 #ifdef WD_SOFTBADSECT 1224 case DIOCBSLIST : 1225 { 1226 u_int32_t count, missing, skip; 1227 struct disk_badsecinfo dbsi; 1228 struct disk_badsectors *dbs; 1229 size_t available; 1230 uint8_t *laddr; 1231 1232 dbsi = *(struct disk_badsecinfo *)addr; 1233 missing = wd->sc_bscount; 1234 count = 0; 1235 available = dbsi.dbsi_bufsize; 1236 skip = dbsi.dbsi_skip; 1237 laddr = (uint8_t *)dbsi.dbsi_buffer; 1238 1239 /* 1240 * We start this loop with the expectation that all of the 1241 * entries will be missed and decrement this counter each 1242 * time we either skip over one (already copied out) or 1243 * we actually copy it back to user space. The structs 1244 * holding the bad sector information are copied directly 1245 * back to user space whilst the summary is returned via 1246 * the struct passed in via the ioctl. 1247 */ 1248 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1249 if (skip > 0) { 1250 missing--; 1251 skip--; 1252 continue; 1253 } 1254 if (available < sizeof(*dbs)) 1255 break; 1256 available -= sizeof(*dbs); 1257 copyout(dbs, laddr, sizeof(*dbs)); 1258 laddr += sizeof(*dbs); 1259 missing--; 1260 count++; 1261 } 1262 dbsi.dbsi_left = missing; 1263 dbsi.dbsi_copied = count; 1264 *(struct disk_badsecinfo *)addr = dbsi; 1265 return 0; 1266 } 1267 1268 case DIOCBSFLUSH : 1269 /* Clean out the bad sector list */ 1270 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1271 void *head = SLIST_FIRST(&wd->sc_bslist); 1272 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1273 free(head, M_TEMP); 1274 } 1275 wd->sc_bscount = 0; 1276 return 0; 1277 #endif 1278 case DIOCGDINFO: 1279 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1280 return 0; 1281 #ifdef __HAVE_OLD_DISKLABEL 1282 case ODIOCGDINFO: 1283 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1284 if (newlabel == NULL) 1285 return EIO; 1286 *newlabel = *(wd->sc_dk.dk_label); 1287 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1288 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1289 else 1290 error = ENOTTY; 1291 free(newlabel, M_TEMP); 1292 return error; 1293 #endif 1294 1295 case DIOCGPART: 1296 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1297 ((struct partinfo *)addr)->part = 1298 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1299 return 0; 1300 1301 case DIOCWDINFO: 1302 case DIOCSDINFO: 1303 #ifdef __HAVE_OLD_DISKLABEL 1304 case ODIOCWDINFO: 1305 case ODIOCSDINFO: 1306 #endif 1307 { 1308 struct disklabel *lp; 1309 1310 if ((flag & FWRITE) == 0) 1311 return EBADF; 1312 1313 #ifdef __HAVE_OLD_DISKLABEL 1314 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1315 newlabel = malloc(sizeof *newlabel, M_TEMP, 1316 M_WAITOK | M_ZERO); 1317 if (newlabel == NULL) 1318 return EIO; 1319 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1320 lp = newlabel; 1321 } else 1322 #endif 1323 lp = (struct disklabel *)addr; 1324 1325 mutex_enter(&wd->sc_dk.dk_openlock); 1326 wd->sc_flags |= WDF_LABELLING; 1327 1328 error = setdisklabel(wd->sc_dk.dk_label, 1329 lp, /*wd->sc_dk.dk_openmask : */0, 1330 wd->sc_dk.dk_cpulabel); 1331 if (error == 0) { 1332 if (wd->drvp->state > RESET) { 1333 s = splbio(); 1334 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1335 splx(s); 1336 } 1337 if (xfer == DIOCWDINFO 1338 #ifdef __HAVE_OLD_DISKLABEL 1339 || xfer == ODIOCWDINFO 1340 #endif 1341 ) 1342 error = writedisklabel(WDLABELDEV(dev), 1343 wdstrategy, wd->sc_dk.dk_label, 1344 wd->sc_dk.dk_cpulabel); 1345 } 1346 1347 wd->sc_flags &= ~WDF_LABELLING; 1348 mutex_exit(&wd->sc_dk.dk_openlock); 1349 #ifdef __HAVE_OLD_DISKLABEL 1350 if (newlabel != NULL) 1351 free(newlabel, M_TEMP); 1352 #endif 1353 return error; 1354 } 1355 1356 case DIOCKLABEL: 1357 if (*(int *)addr) 1358 wd->sc_flags |= WDF_KLABEL; 1359 else 1360 wd->sc_flags &= ~WDF_KLABEL; 1361 return 0; 1362 1363 case DIOCWLABEL: 1364 if ((flag & FWRITE) == 0) 1365 return EBADF; 1366 if (*(int *)addr) 1367 wd->sc_flags |= WDF_WLABEL; 1368 else 1369 wd->sc_flags &= ~WDF_WLABEL; 1370 return 0; 1371 1372 case DIOCGDEFLABEL: 1373 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1374 return 0; 1375 #ifdef __HAVE_OLD_DISKLABEL 1376 case ODIOCGDEFLABEL: 1377 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1378 if (newlabel == NULL) 1379 return EIO; 1380 wdgetdefaultlabel(wd, newlabel); 1381 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1382 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1383 else 1384 error = ENOTTY; 1385 free(newlabel, M_TEMP); 1386 return error; 1387 #endif 1388 1389 #ifdef notyet 1390 case DIOCWFORMAT: 1391 if ((flag & FWRITE) == 0) 1392 return EBADF; 1393 { 1394 register struct format_op *fop; 1395 struct iovec aiov; 1396 struct uio auio; 1397 1398 fop = (struct format_op *)addr; 1399 aiov.iov_base = fop->df_buf; 1400 aiov.iov_len = fop->df_count; 1401 auio.uio_iov = &aiov; 1402 auio.uio_iovcnt = 1; 1403 auio.uio_resid = fop->df_count; 1404 auio.uio_offset = 1405 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1406 auio.uio_vmspace = l->l_proc->p_vmspace; 1407 error = physio(wdformat, NULL, dev, B_WRITE, wdminphys, 1408 &auio); 1409 fop->df_count -= auio.uio_resid; 1410 fop->df_reg[0] = wdc->sc_status; 1411 fop->df_reg[1] = wdc->sc_error; 1412 return error; 1413 } 1414 #endif 1415 case DIOCGCACHE: 1416 return wd_getcache(wd, (int *)addr); 1417 1418 case DIOCSCACHE: 1419 return wd_setcache(wd, *(int *)addr); 1420 1421 case DIOCCACHESYNC: 1422 return wd_flushcache(wd, AT_WAIT); 1423 1424 case ATAIOCCOMMAND: 1425 /* 1426 * Make sure this command is (relatively) safe first 1427 */ 1428 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1429 (flag & FWRITE) == 0) 1430 return (EBADF); 1431 { 1432 struct wd_ioctl *wi; 1433 atareq_t *atareq = (atareq_t *) addr; 1434 int error1; 1435 1436 wi = wi_get(); 1437 wi->wi_softc = wd; 1438 wi->wi_atareq = *atareq; 1439 1440 if (atareq->datalen && atareq->flags & 1441 (ATACMD_READ | ATACMD_WRITE)) { 1442 void *tbuf; 1443 if (atareq->datalen < DEV_BSIZE 1444 && atareq->command == WDCC_IDENTIFY) { 1445 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1446 wi->wi_iov.iov_base = tbuf; 1447 wi->wi_iov.iov_len = DEV_BSIZE; 1448 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1449 } else { 1450 tbuf = NULL; 1451 wi->wi_iov.iov_base = atareq->databuf; 1452 wi->wi_iov.iov_len = atareq->datalen; 1453 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1454 } 1455 wi->wi_uio.uio_iov = &wi->wi_iov; 1456 wi->wi_uio.uio_iovcnt = 1; 1457 wi->wi_uio.uio_resid = atareq->datalen; 1458 wi->wi_uio.uio_offset = 0; 1459 wi->wi_uio.uio_rw = 1460 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1461 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1462 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1463 wdminphys, &wi->wi_uio); 1464 if (tbuf != NULL && error1 == 0) { 1465 error1 = copyout(tbuf, atareq->databuf, 1466 atareq->datalen); 1467 free(tbuf, M_TEMP); 1468 } 1469 } else { 1470 /* No need to call physio if we don't have any 1471 user data */ 1472 wi->wi_bp.b_flags = 0; 1473 wi->wi_bp.b_data = 0; 1474 wi->wi_bp.b_bcount = 0; 1475 wi->wi_bp.b_dev = 0; 1476 wi->wi_bp.b_proc = l->l_proc; 1477 wdioctlstrategy(&wi->wi_bp); 1478 error1 = wi->wi_bp.b_error; 1479 } 1480 *atareq = wi->wi_atareq; 1481 wi_free(wi); 1482 return(error1); 1483 } 1484 1485 case DIOCAWEDGE: 1486 { 1487 struct dkwedge_info *dkw = (void *) addr; 1488 1489 if ((flag & FWRITE) == 0) 1490 return (EBADF); 1491 1492 /* If the ioctl happens here, the parent is us. */ 1493 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1494 return (dkwedge_add(dkw)); 1495 } 1496 1497 case DIOCDWEDGE: 1498 { 1499 struct dkwedge_info *dkw = (void *) addr; 1500 1501 if ((flag & FWRITE) == 0) 1502 return (EBADF); 1503 1504 /* If the ioctl happens here, the parent is us. */ 1505 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1506 return (dkwedge_del(dkw)); 1507 } 1508 1509 case DIOCLWEDGES: 1510 { 1511 struct dkwedge_list *dkwl = (void *) addr; 1512 1513 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1514 } 1515 1516 case DIOCMWEDGES: 1517 { 1518 if ((flag & FWRITE) == 0) 1519 return (EBADF); 1520 1521 dkwedge_discover(&wd->sc_dk); 1522 return 0; 1523 } 1524 1525 case DIOCGSTRATEGY: 1526 { 1527 struct disk_strategy *dks = (void *)addr; 1528 1529 s = splbio(); 1530 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1531 sizeof(dks->dks_name)); 1532 splx(s); 1533 dks->dks_paramlen = 0; 1534 1535 return 0; 1536 } 1537 1538 case DIOCSSTRATEGY: 1539 { 1540 struct disk_strategy *dks = (void *)addr; 1541 struct bufq_state *new; 1542 struct bufq_state *old; 1543 1544 if ((flag & FWRITE) == 0) { 1545 return EBADF; 1546 } 1547 if (dks->dks_param != NULL) { 1548 return EINVAL; 1549 } 1550 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1551 error = bufq_alloc(&new, dks->dks_name, 1552 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1553 if (error) { 1554 return error; 1555 } 1556 s = splbio(); 1557 old = wd->sc_q; 1558 bufq_move(new, old); 1559 wd->sc_q = new; 1560 splx(s); 1561 bufq_free(old); 1562 1563 return 0; 1564 } 1565 1566 default: 1567 return ENOTTY; 1568 } 1569 1570 #ifdef DIAGNOSTIC 1571 panic("wdioctl: impossible"); 1572 #endif 1573 } 1574 1575 static int 1576 wddiscard(dev_t dev, off_t pos, off_t len) 1577 { 1578 struct wd_softc *wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1579 daddr_t bno; 1580 long size, done; 1581 long maxatonce, amount; 1582 int result; 1583 1584 if (!(wd->sc_params.atap_ata_major & WDC_VER_ATA7) 1585 || !(wd->sc_params.support_dsm & ATA_SUPPORT_DSM_TRIM)) { 1586 /* not supported; ignore request */ 1587 ATADEBUG_PRINT(("wddiscard (unsupported)\n"), DEBUG_FUNCS); 1588 return 0; 1589 } 1590 maxatonce = 0xffff; /*wd->sc_params.max_dsm_blocks*/ 1591 1592 ATADEBUG_PRINT(("wddiscard\n"), DEBUG_FUNCS); 1593 1594 if ((wd->sc_flags & WDF_LOADED) == 0) 1595 return EIO; 1596 1597 /* round the start up and the end down */ 1598 bno = (pos + DEV_BSIZE - 1) >> DEV_BSHIFT; 1599 size = ((pos + len) >> DEV_BSHIFT) - bno; 1600 1601 done = 0; 1602 while (done < size) { 1603 amount = size - done; 1604 if (amount > maxatonce) { 1605 amount = maxatonce; 1606 } 1607 result = wd_trim(wd, WDPART(dev), bno + done, amount); 1608 if (result) { 1609 return result; 1610 } 1611 done += amount; 1612 } 1613 return 0; 1614 } 1615 1616 #ifdef B_FORMAT 1617 int 1618 wdformat(struct buf *bp) 1619 { 1620 1621 bp->b_flags |= B_FORMAT; 1622 return wdstrategy(bp); 1623 } 1624 #endif 1625 1626 int 1627 wdsize(dev_t dev) 1628 { 1629 struct wd_softc *wd; 1630 int part, omask; 1631 int size; 1632 1633 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1634 1635 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1636 if (wd == NULL) 1637 return (-1); 1638 1639 part = WDPART(dev); 1640 omask = wd->sc_dk.dk_openmask & (1 << part); 1641 1642 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1643 return (-1); 1644 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1645 size = -1; 1646 else 1647 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1648 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1649 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1650 return (-1); 1651 return (size); 1652 } 1653 1654 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1655 static int wddoingadump = 0; 1656 static int wddumprecalibrated = 0; 1657 1658 /* 1659 * Dump core after a system crash. 1660 */ 1661 int 1662 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1663 { 1664 struct wd_softc *wd; /* disk unit to do the I/O */ 1665 struct disklabel *lp; /* disk's disklabel */ 1666 int part, err; 1667 int nblks; /* total number of sectors left to write */ 1668 1669 /* Check if recursive dump; if so, punt. */ 1670 if (wddoingadump) 1671 return EFAULT; 1672 wddoingadump = 1; 1673 1674 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1675 if (wd == NULL) 1676 return (ENXIO); 1677 1678 part = WDPART(dev); 1679 1680 /* Convert to disk sectors. Request must be a multiple of size. */ 1681 lp = wd->sc_dk.dk_label; 1682 if ((size % lp->d_secsize) != 0) 1683 return EFAULT; 1684 nblks = size / lp->d_secsize; 1685 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1686 1687 /* Check transfer bounds against partition size. */ 1688 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1689 return EINVAL; 1690 1691 /* Offset block number to start of partition. */ 1692 blkno += lp->d_partitions[part].p_offset; 1693 1694 /* Recalibrate, if first dump transfer. */ 1695 if (wddumprecalibrated == 0) { 1696 wddumprecalibrated = 1; 1697 (*wd->atabus->ata_reset_drive)(wd->drvp, 1698 AT_POLL | AT_RST_EMERG, NULL); 1699 wd->drvp->state = RESET; 1700 } 1701 1702 wd->sc_bp = NULL; 1703 wd->sc_wdc_bio.blkno = blkno; 1704 wd->sc_wdc_bio.flags = ATA_POLL; 1705 if (wd->sc_flags & WDF_LBA48 && 1706 (wd->sc_wdc_bio.blkno + nblks) > wd->sc_capacity28) 1707 wd->sc_wdc_bio.flags |= ATA_LBA48; 1708 if (wd->sc_flags & WDF_LBA) 1709 wd->sc_wdc_bio.flags |= ATA_LBA; 1710 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1711 wd->sc_wdc_bio.databuf = va; 1712 #ifndef WD_DUMP_NOT_TRUSTED 1713 switch (err = wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1714 case ATACMD_TRY_AGAIN: 1715 panic("wddump: try again"); 1716 break; 1717 case ATACMD_QUEUED: 1718 panic("wddump: polled command has been queued"); 1719 break; 1720 case ATACMD_COMPLETE: 1721 break; 1722 default: 1723 panic("wddump: unknown atacmd code %d", err); 1724 } 1725 switch(err = wd->sc_wdc_bio.error) { 1726 case TIMEOUT: 1727 printf("wddump: device timed out"); 1728 err = EIO; 1729 break; 1730 case ERR_DF: 1731 printf("wddump: drive fault"); 1732 err = EIO; 1733 break; 1734 case ERR_DMA: 1735 printf("wddump: DMA error"); 1736 err = EIO; 1737 break; 1738 case ERROR: 1739 printf("wddump: "); 1740 wdperror(wd); 1741 err = EIO; 1742 break; 1743 case NOERROR: 1744 err = 0; 1745 break; 1746 default: 1747 panic("wddump: unknown error type %d", err); 1748 } 1749 if (err != 0) { 1750 printf("\n"); 1751 return err; 1752 } 1753 #else /* WD_DUMP_NOT_TRUSTED */ 1754 /* Let's just talk about this first... */ 1755 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1756 unit, va, cylin, head, sector); 1757 delay(500 * 1000); /* half a second */ 1758 #endif 1759 1760 wddoingadump = 0; 1761 return 0; 1762 } 1763 1764 #ifdef HAS_BAD144_HANDLING 1765 /* 1766 * Internalize the bad sector table. 1767 */ 1768 void 1769 bad144intern(struct wd_softc *wd) 1770 { 1771 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1772 struct disklabel *lp = wd->sc_dk.dk_label; 1773 int i = 0; 1774 1775 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1776 1777 for (; i < NBT_BAD; i++) { 1778 if (bt->bt_bad[i].bt_cyl == 0xffff) 1779 break; 1780 wd->sc_badsect[i] = 1781 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1782 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1783 (bt->bt_bad[i].bt_trksec & 0xff); 1784 } 1785 for (; i < NBT_BAD+1; i++) 1786 wd->sc_badsect[i] = -1; 1787 } 1788 #endif 1789 1790 static void 1791 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1792 { 1793 struct disk_geom *dg = &wd->sc_dk.dk_geom; 1794 1795 memset(dg, 0, sizeof(*dg)); 1796 1797 dg->dg_secperunit = wd->sc_capacity; 1798 dg->dg_secsize = DEV_BSIZE /* XXX 512? */; 1799 dg->dg_nsectors = wd->sc_params.atap_sectors; 1800 dg->dg_ntracks = wd->sc_params.atap_heads; 1801 if ((wd->sc_flags & WDF_LBA) == 0) 1802 dg->dg_ncylinders = wd->sc_params.atap_cylinders; 1803 1804 /* XXX Should have a case for ATA here, too. */ 1805 const char *cp = strcmp(wd->sc_params.atap_model, "ST506") ? 1806 "ST506" : "ESDI"; 1807 1808 disk_set_info(wd->sc_dev, &wd->sc_dk, cp); 1809 } 1810 1811 int 1812 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1813 { 1814 1815 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1816 case CMD_AGAIN: 1817 return 1; 1818 case CMD_ERR: 1819 if (wd->drvp->drive_type != ATA_DRIVET_OLD) 1820 return 1; 1821 /* 1822 * We `know' there's a drive here; just assume it's old. 1823 * This geometry is only used to read the MBR and print a 1824 * (false) attach message. 1825 */ 1826 strncpy(params->atap_model, "ST506", 1827 sizeof params->atap_model); 1828 params->atap_config = ATA_CFG_FIXED; 1829 params->atap_cylinders = 1024; 1830 params->atap_heads = 8; 1831 params->atap_sectors = 17; 1832 params->atap_multi = 1; 1833 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1834 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1835 /* FALLTHROUGH */ 1836 case CMD_OK: 1837 wd_params_to_properties(wd, params); 1838 return 0; 1839 default: 1840 panic("wd_get_params: bad return code from ata_get_params"); 1841 /* NOTREACHED */ 1842 } 1843 } 1844 1845 int 1846 wd_getcache(struct wd_softc *wd, int *bitsp) 1847 { 1848 struct ataparams params; 1849 1850 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1851 return EIO; 1852 if (params.atap_cmd_set1 == 0x0000 || 1853 params.atap_cmd_set1 == 0xffff || 1854 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1855 *bitsp = 0; 1856 return 0; 1857 } 1858 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1859 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1860 *bitsp |= DKCACHE_WRITE; 1861 1862 return 0; 1863 } 1864 1865 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1866 1867 int 1868 wd_setcache(struct wd_softc *wd, int bits) 1869 { 1870 struct ataparams params; 1871 struct ata_command ata_c; 1872 1873 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1874 return EIO; 1875 1876 if (params.atap_cmd_set1 == 0x0000 || 1877 params.atap_cmd_set1 == 0xffff || 1878 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1879 return EOPNOTSUPP; 1880 1881 if ((bits & DKCACHE_READ) == 0 || 1882 (bits & DKCACHE_SAVE) != 0) 1883 return EOPNOTSUPP; 1884 1885 memset(&ata_c, 0, sizeof(struct ata_command)); 1886 ata_c.r_command = SET_FEATURES; 1887 ata_c.r_st_bmask = 0; 1888 ata_c.r_st_pmask = 0; 1889 ata_c.timeout = 30000; /* 30s timeout */ 1890 ata_c.flags = AT_WAIT; 1891 if (bits & DKCACHE_WRITE) 1892 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1893 else 1894 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1895 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1896 aprint_error_dev(wd->sc_dev, 1897 "wd_setcache command not complete\n"); 1898 return EIO; 1899 } 1900 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1901 char sbuf[sizeof(at_errbits) + 64]; 1902 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1903 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1904 return EIO; 1905 } 1906 return 0; 1907 } 1908 1909 static int 1910 wd_standby(struct wd_softc *wd, int flags) 1911 { 1912 struct ata_command ata_c; 1913 1914 memset(&ata_c, 0, sizeof(struct ata_command)); 1915 ata_c.r_command = WDCC_STANDBY_IMMED; 1916 ata_c.r_st_bmask = WDCS_DRDY; 1917 ata_c.r_st_pmask = WDCS_DRDY; 1918 ata_c.flags = flags; 1919 ata_c.timeout = 30000; /* 30s timeout */ 1920 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1921 aprint_error_dev(wd->sc_dev, 1922 "standby immediate command didn't complete\n"); 1923 return EIO; 1924 } 1925 if (ata_c.flags & AT_ERROR) { 1926 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1927 return ENODEV; 1928 } 1929 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1930 char sbuf[sizeof(at_errbits) + 64]; 1931 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1932 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1933 return EIO; 1934 } 1935 return 0; 1936 } 1937 1938 int 1939 wd_flushcache(struct wd_softc *wd, int flags) 1940 { 1941 struct ata_command ata_c; 1942 1943 /* 1944 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1945 * only ATA-2 and still support it. 1946 */ 1947 if (wd->drvp->ata_vers < 4 && 1948 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1949 wd->sc_params.atap_cmd_set2 == 0xffff)) 1950 return ENODEV; 1951 memset(&ata_c, 0, sizeof(struct ata_command)); 1952 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1953 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) { 1954 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1955 flags |= AT_LBA48; 1956 } else 1957 ata_c.r_command = WDCC_FLUSHCACHE; 1958 ata_c.r_st_bmask = WDCS_DRDY; 1959 ata_c.r_st_pmask = WDCS_DRDY; 1960 ata_c.flags = flags | AT_READREG; 1961 ata_c.timeout = 300000; /* 5m timeout */ 1962 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1963 aprint_error_dev(wd->sc_dev, 1964 "flush cache command didn't complete\n"); 1965 return EIO; 1966 } 1967 if (ata_c.flags & AT_ERROR) { 1968 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1969 return ENODEV; 1970 } 1971 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1972 char sbuf[sizeof(at_errbits) + 64]; 1973 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1974 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1975 sbuf); 1976 return EIO; 1977 } 1978 return 0; 1979 } 1980 1981 int 1982 wd_trim(struct wd_softc *wd, int part, daddr_t bno, long size) 1983 { 1984 struct ata_command ata_c; 1985 unsigned char *req; 1986 1987 if (part != RAW_PART) 1988 bno += wd->sc_dk.dk_label->d_partitions[part].p_offset;; 1989 1990 req = kmem_zalloc(512, KM_SLEEP); 1991 req[0] = bno & 0xff; 1992 req[1] = (bno >> 8) & 0xff; 1993 req[2] = (bno >> 16) & 0xff; 1994 req[3] = (bno >> 24) & 0xff; 1995 req[4] = (bno >> 32) & 0xff; 1996 req[5] = (bno >> 40) & 0xff; 1997 req[6] = size & 0xff; 1998 req[7] = (size >> 8) & 0xff; 1999 2000 memset(&ata_c, 0, sizeof(struct ata_command)); 2001 ata_c.r_command = ATA_DATA_SET_MANAGEMENT; 2002 ata_c.r_count = 1; 2003 ata_c.r_features = ATA_SUPPORT_DSM_TRIM; 2004 ata_c.r_st_bmask = WDCS_DRDY; 2005 ata_c.r_st_pmask = WDCS_DRDY; 2006 ata_c.timeout = 30000; /* 30s timeout */ 2007 ata_c.data = req; 2008 ata_c.bcount = 512; 2009 ata_c.flags |= AT_WRITE | AT_WAIT; 2010 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 2011 aprint_error_dev(wd->sc_dev, 2012 "trim command didn't complete\n"); 2013 kmem_free(req, 512); 2014 return EIO; 2015 } 2016 kmem_free(req, 512); 2017 if (ata_c.flags & AT_ERROR) { 2018 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 2019 return ENODEV; 2020 } 2021 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2022 char sbuf[sizeof(at_errbits) + 64]; 2023 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 2024 aprint_error_dev(wd->sc_dev, "wd_trim: status=%s\n", 2025 sbuf); 2026 return EIO; 2027 } 2028 return 0; 2029 } 2030 2031 bool 2032 wd_shutdown(device_t dev, int how) 2033 { 2034 struct wd_softc *wd = device_private(dev); 2035 2036 /* the adapter needs to be enabled */ 2037 if (wd->atabus->ata_addref(wd->drvp)) 2038 return true; /* no need to complain */ 2039 2040 wd_flushcache(wd, AT_POLL); 2041 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 2042 wd_standby(wd, AT_POLL); 2043 return true; 2044 } 2045 2046 /* 2047 * Allocate space for a ioctl queue structure. Mostly taken from 2048 * scsipi_ioctl.c 2049 */ 2050 struct wd_ioctl * 2051 wi_get(void) 2052 { 2053 struct wd_ioctl *wi; 2054 int s; 2055 2056 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 2057 buf_init(&wi->wi_bp); 2058 s = splbio(); 2059 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 2060 splx(s); 2061 return (wi); 2062 } 2063 2064 /* 2065 * Free an ioctl structure and remove it from our list 2066 */ 2067 2068 void 2069 wi_free(struct wd_ioctl *wi) 2070 { 2071 int s; 2072 2073 s = splbio(); 2074 LIST_REMOVE(wi, wi_list); 2075 splx(s); 2076 buf_destroy(&wi->wi_bp); 2077 free(wi, M_TEMP); 2078 } 2079 2080 /* 2081 * Find a wd_ioctl structure based on the struct buf. 2082 */ 2083 2084 struct wd_ioctl * 2085 wi_find(struct buf *bp) 2086 { 2087 struct wd_ioctl *wi; 2088 int s; 2089 2090 s = splbio(); 2091 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 2092 if (bp == &wi->wi_bp) 2093 break; 2094 splx(s); 2095 return (wi); 2096 } 2097 2098 /* 2099 * Ioctl pseudo strategy routine 2100 * 2101 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2102 * happens here is: 2103 * 2104 * - wdioctl() queues a wd_ioctl structure. 2105 * 2106 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2107 * user space I/O is required. If physio() is called, physio() eventually 2108 * calls wdioctlstrategy(). 2109 * 2110 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2111 * to perform the actual command 2112 * 2113 * The reason for the use of the pseudo strategy routine is because 2114 * when doing I/O to/from user space, physio _really_ wants to be in 2115 * the loop. We could put the entire buffer into the ioctl request 2116 * structure, but that won't scale if we want to do things like download 2117 * microcode. 2118 */ 2119 2120 void 2121 wdioctlstrategy(struct buf *bp) 2122 { 2123 struct wd_ioctl *wi; 2124 struct ata_command ata_c; 2125 int error = 0; 2126 2127 wi = wi_find(bp); 2128 if (wi == NULL) { 2129 printf("wdioctlstrategy: " 2130 "No matching ioctl request found in queue\n"); 2131 error = EINVAL; 2132 goto bad; 2133 } 2134 2135 memset(&ata_c, 0, sizeof(ata_c)); 2136 2137 /* 2138 * Abort if physio broke up the transfer 2139 */ 2140 2141 if (bp->b_bcount != wi->wi_atareq.datalen) { 2142 printf("physio split wd ioctl request... cannot proceed\n"); 2143 error = EIO; 2144 goto bad; 2145 } 2146 2147 /* 2148 * Abort if we didn't get a buffer size that was a multiple of 2149 * our sector size (or was larger than NBBY) 2150 */ 2151 2152 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2153 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2154 (1 << NBBY)) { 2155 error = EINVAL; 2156 goto bad; 2157 } 2158 2159 /* 2160 * Make sure a timeout was supplied in the ioctl request 2161 */ 2162 2163 if (wi->wi_atareq.timeout == 0) { 2164 error = EINVAL; 2165 goto bad; 2166 } 2167 2168 if (wi->wi_atareq.flags & ATACMD_READ) 2169 ata_c.flags |= AT_READ; 2170 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2171 ata_c.flags |= AT_WRITE; 2172 2173 if (wi->wi_atareq.flags & ATACMD_READREG) 2174 ata_c.flags |= AT_READREG; 2175 2176 if ((wi->wi_atareq.flags & ATACMD_LBA) != 0) 2177 ata_c.flags |= AT_LBA; 2178 2179 ata_c.flags |= AT_WAIT; 2180 2181 ata_c.timeout = wi->wi_atareq.timeout; 2182 ata_c.r_command = wi->wi_atareq.command; 2183 ata_c.r_lba = ((wi->wi_atareq.head & 0x0f) << 24) | 2184 (wi->wi_atareq.cylinder << 8) | 2185 wi->wi_atareq.sec_num; 2186 ata_c.r_count = wi->wi_atareq.sec_count; 2187 ata_c.r_features = wi->wi_atareq.features; 2188 ata_c.r_st_bmask = WDCS_DRDY; 2189 ata_c.r_st_pmask = WDCS_DRDY; 2190 ata_c.data = wi->wi_bp.b_data; 2191 ata_c.bcount = wi->wi_bp.b_bcount; 2192 2193 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2194 != ATACMD_COMPLETE) { 2195 wi->wi_atareq.retsts = ATACMD_ERROR; 2196 goto bad; 2197 } 2198 2199 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2200 if (ata_c.flags & AT_ERROR) { 2201 wi->wi_atareq.retsts = ATACMD_ERROR; 2202 wi->wi_atareq.error = ata_c.r_error; 2203 } else if (ata_c.flags & AT_DF) 2204 wi->wi_atareq.retsts = ATACMD_DF; 2205 else 2206 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2207 } else { 2208 wi->wi_atareq.retsts = ATACMD_OK; 2209 if (wi->wi_atareq.flags & ATACMD_READREG) { 2210 wi->wi_atareq.command = ata_c.r_status; 2211 wi->wi_atareq.features = ata_c.r_error; 2212 wi->wi_atareq.sec_count = ata_c.r_count; 2213 wi->wi_atareq.sec_num = ata_c.r_lba & 0xff; 2214 wi->wi_atareq.head = (ata_c.r_device & 0xf0) | 2215 ((ata_c.r_lba >> 24) & 0x0f); 2216 wi->wi_atareq.cylinder = (ata_c.r_lba >> 8) & 0xffff; 2217 wi->wi_atareq.error = ata_c.r_error; 2218 } 2219 } 2220 2221 bp->b_error = 0; 2222 biodone(bp); 2223 return; 2224 bad: 2225 bp->b_error = error; 2226 bp->b_resid = bp->b_bcount; 2227 biodone(bp); 2228 } 2229
Indexes created Mon Oct 20 20:10:13 GMT 2025