wd.c revision 1.428.2.20
1 /* $NetBSD: wd.c,v 1.428.2.20 2017/06/23 20:40:51 jdolecek 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 1.428.2.20 2017/06/23 20:40:51 jdolecek 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/rndsource.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 for 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 *, struct ata_xfer *); 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 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 172 static int wddoingadump = 0; 173 static int wddumprecalibrated = 0; 174 175 /* 176 * Glue necessary to hook WDCIOCCOMMAND into physio 177 */ 178 179 struct wd_ioctl { 180 LIST_ENTRY(wd_ioctl) wi_list; 181 struct buf wi_bp; 182 struct uio wi_uio; 183 struct iovec wi_iov; 184 atareq_t wi_atareq; 185 struct wd_softc *wi_softc; 186 }; 187 188 struct wd_ioctl *wi_find(struct buf *); 189 void wi_free(struct wd_ioctl *); 190 struct wd_ioctl *wi_get(struct wd_softc *); 191 void wdioctlstrategy(struct buf *); 192 193 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 194 void wdgetdisklabel(struct wd_softc *); 195 void wdstart(device_t); 196 void wdstart1(struct wd_softc *, struct buf *, struct ata_xfer *); 197 void wdrestart(void *); 198 void wddone(device_t, struct ata_xfer *); 199 static void wd_params_to_properties(struct wd_softc *); 200 int wd_get_params(struct wd_softc *, uint8_t, struct ataparams *); 201 int wd_flushcache(struct wd_softc *, int); 202 int wd_trim(struct wd_softc *, int, daddr_t, long); 203 bool wd_shutdown(device_t, int); 204 205 int wd_getcache(struct wd_softc *, int *); 206 int wd_setcache(struct wd_softc *, int); 207 208 struct dkdriver wddkdriver = { 209 .d_strategy = wdstrategy, 210 .d_minphys = wdminphys 211 }; 212 213 #ifdef HAS_BAD144_HANDLING 214 static void bad144intern(struct wd_softc *); 215 #endif 216 217 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 218 219 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 220 221 /* 222 * Quirk table for IDE drives. Put more-specific matches first, since 223 * a simple globing routine is used for matching. 224 */ 225 static const struct wd_quirk { 226 const char *wdq_match; /* inquiry pattern to match */ 227 int wdq_quirks; /* drive quirks */ 228 } wd_quirk_table[] = { 229 /* 230 * Some Seagate S-ATA drives have a PHY which can get confused 231 * with the way data is packetized by some S-ATA controllers. 232 * 233 * The work-around is to split in two any write transfer whose 234 * sector count % 15 == 1 (assuming 512 byte sectors). 235 * 236 * XXX This is an incomplete list. There are at least a couple 237 * XXX more model numbers. If you have trouble with such transfers 238 * XXX (8K is the most common) on Seagate S-ATA drives, please 239 * XXX notify thorpej (at) NetBSD.org. 240 * 241 * The ST360015AS has not yet been confirmed to have this 242 * issue, however, it is the only other drive in the 243 * Seagate Barracuda Serial ATA V family. 244 * 245 */ 246 { "ST3120023AS", 247 WD_QUIRK_SPLIT_MOD15_WRITE }, 248 { "ST380023AS", 249 WD_QUIRK_SPLIT_MOD15_WRITE }, 250 { "ST360015AS", 251 WD_QUIRK_SPLIT_MOD15_WRITE }, 252 { NULL, 253 0 } 254 }; 255 256 static const struct wd_quirk * 257 wd_lookup_quirks(const char *name) 258 { 259 const struct wd_quirk *wdq; 260 const char *estr; 261 262 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 263 /* 264 * We only want exact matches (which include matches 265 * against globbing characters). 266 */ 267 if (pmatch(name, wdq->wdq_match, &estr) == 2) 268 return (wdq); 269 } 270 return (NULL); 271 } 272 273 int 274 wdprobe(device_t parent, cfdata_t match, void *aux) 275 { 276 struct ata_device *adev = aux; 277 278 if (adev == NULL) 279 return 0; 280 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 281 return 0; 282 283 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 284 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 285 return 0; 286 return 1; 287 } 288 289 void 290 wdattach(device_t parent, device_t self, void *aux) 291 { 292 struct wd_softc *wd = device_private(self); 293 struct ata_device *adev= aux; 294 int i, blank; 295 char tbuf[41], pbuf[9], c, *p, *q; 296 const struct wd_quirk *wdq; 297 298 wd->sc_dev = self; 299 300 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 301 callout_init(&wd->sc_restart_ch, 0); 302 callout_setfunc(&wd->sc_restart_ch, wdrestart, wd); 303 mutex_init(&wd->sc_lock, MUTEX_DEFAULT, IPL_BIO); 304 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 305 #ifdef WD_SOFTBADSECT 306 SLIST_INIT(&wd->sc_bslist); 307 #endif 308 STAILQ_INIT(&wd->xfer_restart); 309 wd->atabus = adev->adev_bustype; 310 wd->drvp = adev->adev_drv_data; 311 312 wd->drvp->drv_openings = 1; 313 wd->drvp->drv_start = wdstart; 314 wd->drvp->drv_done = wddone; 315 wd->drvp->drv_softc = wd->sc_dev; /* done in atabusconfig_thread() 316 but too late */ 317 318 aprint_naive("\n"); 319 aprint_normal("\n"); 320 321 /* read our drive info */ 322 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 323 aprint_error_dev(self, "IDENTIFY failed\n"); 324 goto out; 325 } 326 327 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 328 i < sizeof(wd->sc_params.atap_model); i++) { 329 c = *p++; 330 if (c == '\0') 331 break; 332 if (c != ' ') { 333 if (blank) { 334 *q++ = ' '; 335 blank = 0; 336 } 337 *q++ = c; 338 } else 339 blank = 1; 340 } 341 *q++ = '\0'; 342 343 aprint_normal_dev(self, "<%s>\n", tbuf); 344 345 wdq = wd_lookup_quirks(tbuf); 346 if (wdq != NULL) 347 wd->sc_quirks = wdq->wdq_quirks; 348 349 if (wd->sc_quirks != 0) { 350 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 351 snprintb(sbuf, sizeof(sbuf), WD_QUIRK_FMT, wd->sc_quirks); 352 aprint_normal_dev(self, "quirks %s\n", sbuf); 353 354 if (wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) { 355 aprint_error_dev(self, "drive corrupts write transfers with certain controllers, consider replacing\n"); 356 } 357 } 358 359 if ((wd->sc_params.atap_multi & 0xff) > 1) { 360 wd->drvp->multi = wd->sc_params.atap_multi & 0xff; 361 } else { 362 wd->drvp->multi = 1; 363 } 364 365 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 366 wd->drvp->multi); 367 368 /* 48-bit LBA addressing */ 369 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 370 wd->sc_flags |= WDF_LBA48; 371 372 /* Prior to ATA-4, LBA was optional. */ 373 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 374 wd->sc_flags |= WDF_LBA; 375 #if 0 376 /* ATA-4 requires LBA. */ 377 if (wd->sc_params.atap_ataversion != 0xffff && 378 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 379 wd->sc_flags |= WDF_LBA; 380 #endif 381 382 if ((wd->sc_flags & WDF_LBA48) != 0) { 383 aprint_verbose(" LBA48 addressing\n"); 384 wd->sc_capacity = 385 ((uint64_t) wd->sc_params.atap_max_lba[3] << 48) | 386 ((uint64_t) wd->sc_params.atap_max_lba[2] << 32) | 387 ((uint64_t) wd->sc_params.atap_max_lba[1] << 16) | 388 ((uint64_t) wd->sc_params.atap_max_lba[0] << 0); 389 wd->sc_capacity28 = 390 (wd->sc_params.atap_capacity[1] << 16) | 391 wd->sc_params.atap_capacity[0]; 392 } else if ((wd->sc_flags & WDF_LBA) != 0) { 393 aprint_verbose(" LBA addressing\n"); 394 wd->sc_capacity28 = wd->sc_capacity = 395 (wd->sc_params.atap_capacity[1] << 16) | 396 wd->sc_params.atap_capacity[0]; 397 } else { 398 aprint_verbose(" chs addressing\n"); 399 wd->sc_capacity28 = wd->sc_capacity = 400 wd->sc_params.atap_cylinders * 401 wd->sc_params.atap_heads * 402 wd->sc_params.atap_sectors; 403 } 404 if ((wd->sc_params.atap_secsz & ATA_SECSZ_VALID_MASK) == ATA_SECSZ_VALID 405 && ((wd->sc_params.atap_secsz & ATA_SECSZ_LLS) != 0)) { 406 wd->sc_blksize = 2ULL * 407 ((uint32_t)((wd->sc_params.atap_lls_secsz[1] << 16) | 408 wd->sc_params.atap_lls_secsz[0])); 409 } else { 410 wd->sc_blksize = 512; 411 } 412 wd->sc_capacity512 = (wd->sc_capacity * wd->sc_blksize) / DEV_BSIZE; 413 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * wd->sc_blksize); 414 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 415 "%d bytes/sect x %llu sectors\n", 416 pbuf, 417 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 418 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 419 wd->sc_params.atap_cylinders, 420 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 421 wd->sc_blksize, (unsigned long long)wd->sc_capacity); 422 423 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 424 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 425 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 426 427 if (wd->sc_blksize <= 0 || !powerof2(wd->sc_blksize) || 428 wd->sc_blksize < DEV_BSIZE || wd->sc_blksize > MAXPHYS) { 429 aprint_normal_dev(self, "WARNING: block size %u " 430 "might not actually work\n", wd->sc_blksize); 431 } 432 433 out: 434 /* 435 * Initialize and attach the disk structure. 436 */ 437 /* we fill in dk_info later */ 438 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 439 disk_attach(&wd->sc_dk); 440 wd->drvp->lp = wd->sc_dk.dk_label; 441 wd_params_to_properties(wd); 442 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 443 RND_TYPE_DISK, RND_FLAG_DEFAULT); 444 445 /* Discover wedges on this disk. */ 446 dkwedge_discover(&wd->sc_dk); 447 448 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 449 aprint_error_dev(self, "couldn't establish power handler\n"); 450 } 451 452 static bool 453 wd_suspend(device_t dv, const pmf_qual_t *qual) 454 { 455 struct wd_softc *sc = device_private(dv); 456 457 /* the adapter needs to be enabled */ 458 if (sc->atabus->ata_addref(sc->drvp)) 459 return true; /* no need to complain */ 460 461 wd_flushcache(sc, AT_WAIT); 462 wd_standby(sc, AT_WAIT); 463 464 sc->atabus->ata_delref(sc->drvp); 465 return true; 466 } 467 468 int 469 wddetach(device_t self, int flags) 470 { 471 struct wd_softc *sc = device_private(self); 472 int bmaj, cmaj, i, mn, rc; 473 474 if ((rc = disk_begindetach(&sc->sc_dk, wdlastclose, self, flags)) != 0) 475 return rc; 476 477 /* locate the major number */ 478 bmaj = bdevsw_lookup_major(&wd_bdevsw); 479 cmaj = cdevsw_lookup_major(&wd_cdevsw); 480 481 /* Nuke the vnodes for any open instances. */ 482 for (i = 0; i < MAXPARTITIONS; i++) { 483 mn = WDMINOR(device_unit(self), i); 484 vdevgone(bmaj, mn, mn, VBLK); 485 vdevgone(cmaj, mn, mn, VCHR); 486 } 487 488 /* Delete all of our wedges. */ 489 dkwedge_delall(&sc->sc_dk); 490 491 mutex_enter(&sc->sc_lock); 492 493 /* Kill off any queued buffers. */ 494 bufq_drain(sc->sc_q); 495 496 sc->atabus->ata_killpending(sc->drvp); 497 if (flags & DETACH_POWEROFF) 498 wd_standby(sc, AT_POLL); 499 500 mutex_exit(&sc->sc_lock); 501 bufq_free(sc->sc_q); 502 503 /* Detach disk. */ 504 disk_detach(&sc->sc_dk); 505 disk_destroy(&sc->sc_dk); 506 507 #ifdef WD_SOFTBADSECT 508 /* Clean out the bad sector list */ 509 while (!SLIST_EMPTY(&sc->sc_bslist)) { 510 void *head = SLIST_FIRST(&sc->sc_bslist); 511 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 512 free(head, M_TEMP); 513 } 514 sc->sc_bscount = 0; 515 #endif 516 517 pmf_device_deregister(self); 518 519 /* Unhook the entropy source. */ 520 rnd_detach_source(&sc->rnd_source); 521 522 mutex_destroy(&sc->sc_lock); 523 callout_destroy(&sc->sc_restart_ch); 524 525 sc->drvp->drive_type = ATA_DRIVET_NONE; /* no drive any more here */ 526 sc->drvp->drive_flags = 0; 527 528 return (0); 529 } 530 531 /* 532 * Read/write routine for a buffer. Validates the arguments and schedules the 533 * transfer. Does not wait for the transfer to complete. 534 */ 535 void 536 wdstrategy(struct buf *bp) 537 { 538 struct wd_softc *wd = 539 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 540 struct disklabel *lp = wd->sc_dk.dk_label; 541 daddr_t blkno; 542 543 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 544 DEBUG_XFERS); 545 546 /* Valid request? */ 547 if (bp->b_blkno < 0 || 548 (bp->b_bcount % lp->d_secsize) != 0 || 549 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 550 bp->b_error = EINVAL; 551 goto done; 552 } 553 554 /* If device invalidated (e.g. media change, door open, 555 * device detachment), then error. 556 */ 557 if ((wd->sc_flags & WDF_LOADED) == 0 || 558 !device_is_enabled(wd->sc_dev)) { 559 bp->b_error = EIO; 560 goto done; 561 } 562 563 /* If it's a null transfer, return immediately. */ 564 if (bp->b_bcount == 0) 565 goto done; 566 567 /* 568 * Do bounds checking, adjust transfer. if error, process. 569 * If end of partition, just return. 570 */ 571 if (WDPART(bp->b_dev) == RAW_PART) { 572 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 573 wd->sc_capacity512) <= 0) 574 goto done; 575 } else { 576 if (bounds_check_with_label(&wd->sc_dk, bp, 577 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 578 goto done; 579 } 580 581 /* 582 * Now convert the block number to absolute and put it in 583 * terms of the device's logical block size. 584 */ 585 if (lp->d_secsize >= DEV_BSIZE) 586 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 587 else 588 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 589 590 if (WDPART(bp->b_dev) != RAW_PART) 591 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 592 593 bp->b_rawblkno = blkno; 594 595 #ifdef WD_SOFTBADSECT 596 /* 597 * If the transfer about to be attempted contains only a block that 598 * is known to be bad then return an error for the transfer without 599 * even attempting to start a transfer up under the premis that we 600 * will just end up doing more retries for a transfer that will end 601 * up failing again. 602 */ 603 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 604 struct disk_badsectors *dbs; 605 daddr_t maxblk = blkno + (bp->b_bcount / wd->sc_blksize) - 1; 606 607 mutex_enter(&wd->sc_lock); 608 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 609 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 610 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 611 bp->b_error = EIO; 612 mutex_exit(&wd->sc_lock); 613 goto done; 614 } 615 mutex_exit(&wd->sc_lock); 616 } 617 #endif 618 619 /* Queue transfer on drive, activate drive and controller if idle. */ 620 mutex_enter(&wd->sc_lock); 621 disk_wait(&wd->sc_dk); 622 bufq_put(wd->sc_q, bp); 623 mutex_exit(&wd->sc_lock); 624 625 /* Try to queue on the current drive only */ 626 wdstart(wd->sc_dev); 627 return; 628 done: 629 /* Toss transfer; we're done early. */ 630 bp->b_resid = bp->b_bcount; 631 biodone(bp); 632 } 633 634 /* 635 * Queue a drive for I/O. 636 */ 637 void 638 wdstart(device_t self) 639 { 640 struct wd_softc *wd = device_private(self); 641 struct buf *bp; 642 struct ata_xfer *xfer; 643 644 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 645 DEBUG_XFERS); 646 647 if (!device_is_active(wd->sc_dev)) 648 return; 649 650 mutex_enter(&wd->sc_lock); 651 652 /* 653 * Do not queue any transfers until flush is finished, so that 654 * once flush is pending, it will get handled as soon as xfer 655 * is available. 656 */ 657 if (ISSET(wd->sc_flags, WDF_FLUSH_PEND)) 658 goto out; 659 660 while (bufq_peek(wd->sc_q) != NULL) { 661 /* First try to get command */ 662 xfer = ata_get_xfer_ext(wd->drvp->chnl_softc, false, 663 wd->drvp->drv_openings); 664 if (xfer == NULL) 665 break; 666 667 /* There is got to be a buf for us */ 668 bp = bufq_get(wd->sc_q); 669 KASSERT(bp != NULL); 670 671 xfer->c_bio.retries = 0; 672 wdstart1(wd, bp, xfer); 673 } 674 675 out: 676 mutex_exit(&wd->sc_lock); 677 } 678 679 void 680 wdstart1(struct wd_softc *wd, struct buf *bp, struct ata_xfer *xfer) 681 { 682 /* must be locked on entry */ 683 KASSERT(mutex_owned(&wd->sc_lock)); 684 685 xfer->c_bio.blkno = bp->b_rawblkno; 686 xfer->c_bio.bcount = bp->b_bcount; 687 xfer->c_bio.databuf = bp->b_data; 688 xfer->c_bio.blkdone = 0; 689 KASSERT(bp == xfer->c_bio.bp || xfer->c_bio.bp == NULL); 690 xfer->c_bio.bp = bp; 691 692 /* 693 * If we're retrying, retry in single-sector mode. This will give us 694 * the sector number of the problem, and will eventually allow the 695 * transfer to succeed. 696 */ 697 if (xfer->c_bio.retries >= WDIORETRIES_SINGLE) 698 xfer->c_bio.flags = ATA_SINGLE; 699 else 700 xfer->c_bio.flags = 0; 701 if (wd->sc_flags & WDF_LBA48 && 702 (((xfer->c_bio.blkno + 703 xfer->c_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 704 wd->sc_capacity28) || 705 ((xfer->c_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 128))) 706 xfer->c_bio.flags |= ATA_LBA48; 707 708 /* 709 * If NCQ was negotiated, always use it for the first attempt. 710 * Since device cancels all outstanding requests on error, downgrade 711 * to non-NCQ on retry, so that the retried transfer would not cause 712 * cascade failure for the other transfers if it fails again. 713 * If FUA was requested, we can't downgrade, as that would violate 714 * the semantics - FUA would not be honored. In that case, continue 715 * retrying with NCQ. 716 */ 717 if (wd->drvp->drive_flags & ATA_DRIVE_NCQ && 718 (xfer->c_bio.retries == 0 || (bp->b_flags & B_MEDIA_FUA))) { 719 xfer->c_bio.flags |= ATA_LBA48; 720 xfer->c_flags |= C_NCQ; 721 722 if ((wd->drvp->drive_flags & ATA_DRIVE_NCQ_PRIO) && 723 BIO_GETPRIO(bp) == BPRIO_TIMECRITICAL) 724 xfer->c_bio.flags |= ATA_PRIO_HIGH; 725 } 726 727 if (wd->sc_flags & WDF_LBA) 728 xfer->c_bio.flags |= ATA_LBA; 729 if (bp->b_flags & B_READ) 730 xfer->c_bio.flags |= ATA_READ; 731 if (bp->b_flags & B_MEDIA_FUA) { 732 /* If not using NCQ, the command WRITE DMA FUA EXT is LBA48 */ 733 KASSERT((wd->sc_flags & WDF_LBA48) != 0); 734 if ((xfer->c_flags & C_NCQ) == 0) 735 xfer->c_bio.flags |= ATA_LBA48; 736 737 xfer->c_bio.flags |= ATA_FUA; 738 } 739 740 /* Instrumentation. */ 741 disk_busy(&wd->sc_dk); 742 switch (wd->atabus->ata_bio(wd->drvp, xfer)) { 743 case ATACMD_TRY_AGAIN: 744 panic("wdstart1: try again"); 745 break; 746 case ATACMD_QUEUED: 747 case ATACMD_COMPLETE: 748 break; 749 default: 750 panic("wdstart1: bad return code from ata_bio()"); 751 } 752 } 753 754 void 755 wddone(device_t self, struct ata_xfer *xfer) 756 { 757 struct wd_softc *wd = device_private(self); 758 const char *errmsg; 759 int do_perror = 0; 760 struct buf *bp; 761 762 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 763 DEBUG_XFERS); 764 if (wddoingadump) { 765 /* just drop it to the floor */ 766 ata_free_xfer(wd->drvp->chnl_softc, xfer); 767 return; 768 } 769 770 mutex_enter(&wd->sc_lock); 771 772 bp = xfer->c_bio.bp; 773 KASSERT(bp != NULL); 774 775 bp->b_resid = xfer->c_bio.bcount; 776 switch (xfer->c_bio.error) { 777 case ERR_DMA: 778 errmsg = "DMA error"; 779 goto retry; 780 case ERR_DF: 781 errmsg = "device fault"; 782 goto retry; 783 case TIMEOUT: 784 errmsg = "device timeout"; 785 goto retry; 786 case ERR_RESET: 787 errmsg = "channel reset"; 788 goto retry2; 789 case ERROR: 790 /* Don't care about media change bits */ 791 if (xfer->c_bio.r_error != 0 && 792 (xfer->c_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 793 goto noerror; 794 errmsg = "error"; 795 do_perror = 1; 796 retry: /* Just reset and retry. Can we do more ? */ 797 (*wd->atabus->ata_reset_drive)(wd->drvp, 0, NULL); 798 retry2: 799 diskerr(bp, "wd", errmsg, LOG_PRINTF, 800 xfer->c_bio.blkdone, wd->sc_dk.dk_label); 801 if (xfer->c_bio.retries < WDIORETRIES) 802 printf(", retrying"); 803 printf("\n"); 804 if (do_perror) 805 wdperror(wd, xfer); 806 if (xfer->c_bio.retries < WDIORETRIES) { 807 xfer->c_bio.retries++; 808 STAILQ_INSERT_TAIL(&wd->xfer_restart, xfer, 809 c_restartchain); 810 811 /* 812 * Only restart the timer if it's not already pending, 813 * so that we wouldn't postpone processing beyond 814 * original schedule. 815 */ 816 if (!callout_pending(&wd->sc_restart_ch)) { 817 callout_schedule(&wd->sc_restart_ch, 818 RECOVERYTIME); 819 } 820 mutex_exit(&wd->sc_lock); 821 return; 822 } 823 824 #ifdef WD_SOFTBADSECT 825 /* 826 * Not all errors indicate a failed block but those that do, 827 * put the block on the bad-block list for the device. Only 828 * do this for reads because the drive should do it for writes, 829 * itself, according to Manuel. 830 */ 831 if ((bp->b_flags & B_READ) && 832 ((wd->drvp->ata_vers >= 4 && xfer->c_bio.r_error & 64) || 833 (wd->drvp->ata_vers < 4 && xfer->c_bio.r_error & 192))) { 834 struct disk_badsectors *dbs; 835 836 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 837 dbs->dbs_min = bp->b_rawblkno; 838 dbs->dbs_max = dbs->dbs_min + 839 (bp->b_bcount /wd->sc_blksize) - 1; 840 microtime(&dbs->dbs_failedat); 841 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 842 wd->sc_bscount++; 843 } 844 #endif 845 bp->b_error = EIO; 846 break; 847 case NOERROR: 848 noerror: if ((xfer->c_bio.flags & ATA_CORR) || xfer->c_bio.retries > 0) 849 aprint_error_dev(wd->sc_dev, 850 "soft error (corrected)\n"); 851 break; 852 case ERR_NODEV: 853 bp->b_error = EIO; 854 break; 855 } 856 if (__predict_false(bp->b_error != 0) && bp->b_resid == 0) { 857 /* 858 * the disk or controller sometimes report a complete 859 * xfer, when there has been an error. This is wrong, 860 * assume nothing got transfered in this case 861 */ 862 bp->b_resid = bp->b_bcount; 863 } 864 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 865 (bp->b_flags & B_READ)); 866 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 867 ata_free_xfer(wd->drvp->chnl_softc, xfer); 868 mutex_exit(&wd->sc_lock); 869 biodone(bp); 870 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 871 } 872 873 void 874 wdrestart(void *v) 875 { 876 struct wd_softc *wd = v; 877 struct ata_xfer *xfer; 878 879 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 880 DEBUG_XFERS); 881 882 /* 883 * Resend all failed xfers out immediatelly regardless of original 884 * schedule, so that we error out reasonably fast in case of massive 885 * permanent errors. 886 */ 887 mutex_enter(&wd->sc_lock); 888 while (!STAILQ_EMPTY(&wd->xfer_restart)) { 889 xfer = STAILQ_FIRST(&wd->xfer_restart); 890 STAILQ_REMOVE_HEAD(&wd->xfer_restart, c_restartchain); 891 892 wdstart1(v, xfer->c_bio.bp, xfer); 893 } 894 mutex_exit(&wd->sc_lock); 895 } 896 897 static void 898 wdminphys(struct buf *bp) 899 { 900 const struct wd_softc * const wd = 901 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 902 uint32_t maxsectors; 903 904 /* 905 * The limit is actually 65536 for LBA48 and 256 for non-LBA48, 906 * but that requires to set the count for the ATA command 907 * to 0, which is somewhat error prone, so better stay safe. 908 */ 909 if (wd->sc_flags & WDF_LBA48) 910 maxsectors = 65535; 911 else 912 maxsectors = 128; 913 914 if (bp->b_bcount > (wd->sc_blksize * maxsectors)) 915 bp->b_bcount = (wd->sc_blksize * maxsectors); 916 917 minphys(bp); 918 } 919 920 int 921 wdread(dev_t dev, struct uio *uio, int flags) 922 { 923 924 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 925 return (physio(wdstrategy, NULL, dev, B_READ, wdminphys, uio)); 926 } 927 928 int 929 wdwrite(dev_t dev, struct uio *uio, int flags) 930 { 931 932 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 933 return (physio(wdstrategy, NULL, dev, B_WRITE, wdminphys, uio)); 934 } 935 936 int 937 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 938 { 939 struct wd_softc *wd; 940 int part, error; 941 942 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 943 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 944 if (wd == NULL) 945 return (ENXIO); 946 947 if (! device_is_active(wd->sc_dev)) 948 return (ENODEV); 949 950 if (wd->sc_capacity == 0) 951 return (ENODEV); 952 953 part = WDPART(dev); 954 955 mutex_enter(&wd->sc_dk.dk_openlock); 956 957 /* 958 * If there are wedges, and this is not RAW_PART, then we 959 * need to fail. 960 */ 961 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 962 error = EBUSY; 963 goto bad1; 964 } 965 966 /* 967 * If this is the first open of this device, add a reference 968 * to the adapter. 969 */ 970 if (wd->sc_dk.dk_openmask == 0 && 971 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 972 goto bad1; 973 974 if (wd->sc_dk.dk_openmask != 0) { 975 /* 976 * If any partition is open, but the disk has been invalidated, 977 * disallow further opens. 978 */ 979 if ((wd->sc_flags & WDF_LOADED) == 0) { 980 error = EIO; 981 goto bad2; 982 } 983 } else { 984 if ((wd->sc_flags & WDF_LOADED) == 0) { 985 986 /* Load the physical device parameters. */ 987 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 988 aprint_error_dev(wd->sc_dev, 989 "IDENTIFY failed\n"); 990 error = EIO; 991 goto bad2; 992 } 993 wd->sc_flags |= WDF_LOADED; 994 /* Load the partition info if not already loaded. */ 995 wdgetdisklabel(wd); 996 } 997 } 998 999 /* Check that the partition exists. */ 1000 if (part != RAW_PART && 1001 (part >= wd->sc_dk.dk_label->d_npartitions || 1002 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 1003 error = ENXIO; 1004 goto bad2; 1005 } 1006 1007 /* Insure only one open at a time. */ 1008 switch (fmt) { 1009 case S_IFCHR: 1010 wd->sc_dk.dk_copenmask |= (1 << part); 1011 break; 1012 case S_IFBLK: 1013 wd->sc_dk.dk_bopenmask |= (1 << part); 1014 break; 1015 } 1016 wd->sc_dk.dk_openmask = 1017 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1018 1019 mutex_exit(&wd->sc_dk.dk_openlock); 1020 return 0; 1021 1022 bad2: 1023 if (wd->sc_dk.dk_openmask == 0) 1024 wd->atabus->ata_delref(wd->drvp); 1025 bad1: 1026 mutex_exit(&wd->sc_dk.dk_openlock); 1027 return error; 1028 } 1029 1030 /* 1031 * Caller must hold wd->sc_dk.dk_openlock. 1032 */ 1033 static int 1034 wdlastclose(device_t self) 1035 { 1036 struct wd_softc *wd = device_private(self); 1037 1038 wd_flushcache(wd, AT_WAIT); 1039 1040 if (! (wd->sc_flags & WDF_KLABEL)) 1041 wd->sc_flags &= ~WDF_LOADED; 1042 1043 wd->atabus->ata_delref(wd->drvp); 1044 1045 return 0; 1046 } 1047 1048 int 1049 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1050 { 1051 struct wd_softc *wd = 1052 device_lookup_private(&wd_cd, WDUNIT(dev)); 1053 int part = WDPART(dev); 1054 1055 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1056 1057 mutex_enter(&wd->sc_dk.dk_openlock); 1058 1059 switch (fmt) { 1060 case S_IFCHR: 1061 wd->sc_dk.dk_copenmask &= ~(1 << part); 1062 break; 1063 case S_IFBLK: 1064 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1065 break; 1066 } 1067 wd->sc_dk.dk_openmask = 1068 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1069 1070 if (wd->sc_dk.dk_openmask == 0) 1071 wdlastclose(wd->sc_dev); 1072 1073 mutex_exit(&wd->sc_dk.dk_openlock); 1074 return 0; 1075 } 1076 1077 void 1078 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1079 { 1080 1081 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1082 memset(lp, 0, sizeof(struct disklabel)); 1083 1084 lp->d_secsize = wd->sc_blksize; 1085 lp->d_ntracks = wd->sc_params.atap_heads; 1086 lp->d_nsectors = wd->sc_params.atap_sectors; 1087 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1088 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1089 wd->sc_params.atap_cylinders; 1090 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1091 1092 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1093 lp->d_type = DKTYPE_ST506; 1094 else 1095 lp->d_type = DKTYPE_ESDI; 1096 1097 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1098 strncpy(lp->d_packname, "fictitious", 16); 1099 if (wd->sc_capacity > UINT32_MAX) 1100 lp->d_secperunit = UINT32_MAX; 1101 else 1102 lp->d_secperunit = wd->sc_capacity; 1103 lp->d_rpm = 3600; 1104 lp->d_interleave = 1; 1105 lp->d_flags = 0; 1106 1107 lp->d_partitions[RAW_PART].p_offset = 0; 1108 lp->d_partitions[RAW_PART].p_size = lp->d_secperunit; 1109 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1110 lp->d_npartitions = RAW_PART + 1; 1111 1112 lp->d_magic = DISKMAGIC; 1113 lp->d_magic2 = DISKMAGIC; 1114 lp->d_checksum = dkcksum(lp); 1115 } 1116 1117 /* 1118 * Fabricate a default disk label, and try to read the correct one. 1119 */ 1120 void 1121 wdgetdisklabel(struct wd_softc *wd) 1122 { 1123 struct disklabel *lp = wd->sc_dk.dk_label; 1124 const char *errstring; 1125 1126 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1127 1128 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1129 1130 wdgetdefaultlabel(wd, lp); 1131 1132 wd->drvp->badsect[0] = -1; 1133 1134 if (wd->drvp->state > RESET) { 1135 mutex_enter(&wd->sc_lock); 1136 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1137 mutex_exit(&wd->sc_lock); 1138 } 1139 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1140 RAW_PART), wdstrategy, lp, 1141 wd->sc_dk.dk_cpulabel); 1142 if (errstring) { 1143 /* 1144 * This probably happened because the drive's default 1145 * geometry doesn't match the DOS geometry. We 1146 * assume the DOS geometry is now in the label and try 1147 * again. XXX This is a kluge. 1148 */ 1149 if (wd->drvp->state > RESET) { 1150 mutex_enter(&wd->sc_lock); 1151 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1152 mutex_exit(&wd->sc_lock); 1153 } 1154 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1155 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1156 } 1157 if (errstring) { 1158 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1159 return; 1160 } 1161 1162 if (wd->drvp->state > RESET) { 1163 mutex_enter(&wd->sc_lock); 1164 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1165 mutex_exit(&wd->sc_lock); 1166 } 1167 #ifdef HAS_BAD144_HANDLING 1168 if ((lp->d_flags & D_BADSECT) != 0) 1169 bad144intern(wd); 1170 #endif 1171 } 1172 1173 void 1174 wdperror(const struct wd_softc *wd, struct ata_xfer *xfer) 1175 { 1176 static const char *const errstr0_3[] = {"address mark not found", 1177 "track 0 not found", "aborted command", "media change requested", 1178 "id not found", "media changed", "uncorrectable data error", 1179 "bad block detected"}; 1180 static const char *const errstr4_5[] = { 1181 "obsolete (address mark not found)", 1182 "no media/write protected", "aborted command", 1183 "media change requested", "id not found", "media changed", 1184 "uncorrectable data error", "interface CRC error"}; 1185 const char *const *errstr; 1186 int i; 1187 const char *sep = ""; 1188 1189 const char *devname = device_xname(wd->sc_dev); 1190 struct ata_drive_datas *drvp = wd->drvp; 1191 int errno = xfer->c_bio.r_error; 1192 1193 if (drvp->ata_vers >= 4) 1194 errstr = errstr4_5; 1195 else 1196 errstr = errstr0_3; 1197 1198 printf("%s: (", devname); 1199 1200 if (errno == 0) 1201 printf("error not notified"); 1202 1203 for (i = 0; i < 8; i++) { 1204 if (errno & (1 << i)) { 1205 printf("%s%s", sep, errstr[i]); 1206 sep = ", "; 1207 } 1208 } 1209 printf(")\n"); 1210 } 1211 1212 int 1213 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1214 { 1215 struct wd_softc *wd = 1216 device_lookup_private(&wd_cd, WDUNIT(dev)); 1217 int error; 1218 #ifdef __HAVE_OLD_DISKLABEL 1219 struct disklabel *newlabel = NULL; 1220 #endif 1221 1222 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1223 1224 if ((wd->sc_flags & WDF_LOADED) == 0) 1225 return EIO; 1226 1227 error = disk_ioctl(&wd->sc_dk, dev, xfer, addr, flag, l); 1228 if (error != EPASSTHROUGH) 1229 return error; 1230 1231 error = 0; 1232 switch (xfer) { 1233 #ifdef HAS_BAD144_HANDLING 1234 case DIOCSBAD: 1235 if ((flag & FWRITE) == 0) 1236 return EBADF; 1237 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1238 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1239 bad144intern(wd); 1240 return 0; 1241 #endif 1242 #ifdef WD_SOFTBADSECT 1243 case DIOCBSLIST : 1244 { 1245 uint32_t count, missing, skip; 1246 struct disk_badsecinfo dbsi; 1247 struct disk_badsectors *dbs; 1248 size_t available; 1249 uint8_t *laddr; 1250 1251 dbsi = *(struct disk_badsecinfo *)addr; 1252 missing = wd->sc_bscount; 1253 count = 0; 1254 available = dbsi.dbsi_bufsize; 1255 skip = dbsi.dbsi_skip; 1256 laddr = (uint8_t *)dbsi.dbsi_buffer; 1257 1258 /* 1259 * We start this loop with the expectation that all of the 1260 * entries will be missed and decrement this counter each 1261 * time we either skip over one (already copied out) or 1262 * we actually copy it back to user space. The structs 1263 * holding the bad sector information are copied directly 1264 * back to user space whilst the summary is returned via 1265 * the struct passed in via the ioctl. 1266 */ 1267 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1268 if (skip > 0) { 1269 missing--; 1270 skip--; 1271 continue; 1272 } 1273 if (available < sizeof(*dbs)) 1274 break; 1275 available -= sizeof(*dbs); 1276 copyout(dbs, laddr, sizeof(*dbs)); 1277 laddr += sizeof(*dbs); 1278 missing--; 1279 count++; 1280 } 1281 dbsi.dbsi_left = missing; 1282 dbsi.dbsi_copied = count; 1283 *(struct disk_badsecinfo *)addr = dbsi; 1284 return 0; 1285 } 1286 1287 case DIOCBSFLUSH : 1288 /* Clean out the bad sector list */ 1289 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1290 void *head = SLIST_FIRST(&wd->sc_bslist); 1291 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1292 free(head, M_TEMP); 1293 } 1294 wd->sc_bscount = 0; 1295 return 0; 1296 #endif 1297 1298 case DIOCWDINFO: 1299 case DIOCSDINFO: 1300 #ifdef __HAVE_OLD_DISKLABEL 1301 case ODIOCWDINFO: 1302 case ODIOCSDINFO: 1303 #endif 1304 { 1305 struct disklabel *lp; 1306 1307 if ((flag & FWRITE) == 0) 1308 return EBADF; 1309 1310 #ifdef __HAVE_OLD_DISKLABEL 1311 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1312 newlabel = malloc(sizeof *newlabel, M_TEMP, 1313 M_WAITOK | M_ZERO); 1314 if (newlabel == NULL) 1315 return EIO; 1316 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1317 lp = newlabel; 1318 } else 1319 #endif 1320 lp = (struct disklabel *)addr; 1321 1322 mutex_enter(&wd->sc_dk.dk_openlock); 1323 wd->sc_flags |= WDF_LABELLING; 1324 1325 error = setdisklabel(wd->sc_dk.dk_label, 1326 lp, /*wd->sc_dk.dk_openmask : */0, 1327 wd->sc_dk.dk_cpulabel); 1328 if (error == 0) { 1329 if (wd->drvp->state > RESET) { 1330 mutex_enter(&wd->sc_lock); 1331 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1332 mutex_exit(&wd->sc_lock); 1333 } 1334 if (xfer == DIOCWDINFO 1335 #ifdef __HAVE_OLD_DISKLABEL 1336 || xfer == ODIOCWDINFO 1337 #endif 1338 ) 1339 error = writedisklabel(WDLABELDEV(dev), 1340 wdstrategy, wd->sc_dk.dk_label, 1341 wd->sc_dk.dk_cpulabel); 1342 } 1343 1344 wd->sc_flags &= ~WDF_LABELLING; 1345 mutex_exit(&wd->sc_dk.dk_openlock); 1346 #ifdef __HAVE_OLD_DISKLABEL 1347 if (newlabel != NULL) 1348 free(newlabel, M_TEMP); 1349 #endif 1350 return error; 1351 } 1352 1353 case DIOCKLABEL: 1354 if (*(int *)addr) 1355 wd->sc_flags |= WDF_KLABEL; 1356 else 1357 wd->sc_flags &= ~WDF_KLABEL; 1358 return 0; 1359 1360 case DIOCWLABEL: 1361 if ((flag & FWRITE) == 0) 1362 return EBADF; 1363 if (*(int *)addr) 1364 wd->sc_flags |= WDF_WLABEL; 1365 else 1366 wd->sc_flags &= ~WDF_WLABEL; 1367 return 0; 1368 1369 case DIOCGDEFLABEL: 1370 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1371 return 0; 1372 #ifdef __HAVE_OLD_DISKLABEL 1373 case ODIOCGDEFLABEL: 1374 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1375 if (newlabel == NULL) 1376 return EIO; 1377 wdgetdefaultlabel(wd, newlabel); 1378 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1379 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1380 else 1381 error = ENOTTY; 1382 free(newlabel, M_TEMP); 1383 return error; 1384 #endif 1385 1386 #ifdef notyet 1387 case DIOCWFORMAT: 1388 if ((flag & FWRITE) == 0) 1389 return EBADF; 1390 { 1391 register struct format_op *fop; 1392 struct iovec aiov; 1393 struct uio auio; 1394 1395 fop = (struct format_op *)addr; 1396 aiov.iov_base = fop->df_buf; 1397 aiov.iov_len = fop->df_count; 1398 auio.uio_iov = &aiov; 1399 auio.uio_iovcnt = 1; 1400 auio.uio_resid = fop->df_count; 1401 auio.uio_offset = 1402 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1403 auio.uio_vmspace = l->l_proc->p_vmspace; 1404 error = physio(wdformat, NULL, dev, B_WRITE, wdminphys, 1405 &auio); 1406 fop->df_count -= auio.uio_resid; 1407 fop->df_reg[0] = wdc->sc_status; 1408 fop->df_reg[1] = wdc->sc_error; 1409 return error; 1410 } 1411 #endif 1412 case DIOCGCACHE: 1413 return wd_getcache(wd, (int *)addr); 1414 1415 case DIOCSCACHE: 1416 return wd_setcache(wd, *(int *)addr); 1417 1418 case DIOCCACHESYNC: 1419 return wd_flushcache(wd, AT_WAIT); 1420 1421 case ATAIOCCOMMAND: 1422 /* 1423 * Make sure this command is (relatively) safe first 1424 */ 1425 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1426 (flag & FWRITE) == 0) 1427 return (EBADF); 1428 { 1429 struct wd_ioctl *wi; 1430 atareq_t *atareq = (atareq_t *) addr; 1431 int error1; 1432 1433 wi = wi_get(wd); 1434 wi->wi_atareq = *atareq; 1435 1436 if (atareq->datalen && atareq->flags & 1437 (ATACMD_READ | ATACMD_WRITE)) { 1438 void *tbuf; 1439 if (atareq->datalen < DEV_BSIZE 1440 && atareq->command == WDCC_IDENTIFY) { 1441 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1442 wi->wi_iov.iov_base = tbuf; 1443 wi->wi_iov.iov_len = DEV_BSIZE; 1444 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1445 } else { 1446 tbuf = NULL; 1447 wi->wi_iov.iov_base = atareq->databuf; 1448 wi->wi_iov.iov_len = atareq->datalen; 1449 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1450 } 1451 wi->wi_uio.uio_iov = &wi->wi_iov; 1452 wi->wi_uio.uio_iovcnt = 1; 1453 wi->wi_uio.uio_resid = atareq->datalen; 1454 wi->wi_uio.uio_offset = 0; 1455 wi->wi_uio.uio_rw = 1456 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1457 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1458 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1459 wdminphys, &wi->wi_uio); 1460 if (tbuf != NULL && error1 == 0) { 1461 error1 = copyout(tbuf, atareq->databuf, 1462 atareq->datalen); 1463 free(tbuf, M_TEMP); 1464 } 1465 } else { 1466 /* No need to call physio if we don't have any 1467 user data */ 1468 wi->wi_bp.b_flags = 0; 1469 wi->wi_bp.b_data = 0; 1470 wi->wi_bp.b_bcount = 0; 1471 wi->wi_bp.b_dev = dev; 1472 wi->wi_bp.b_proc = l->l_proc; 1473 wdioctlstrategy(&wi->wi_bp); 1474 error1 = wi->wi_bp.b_error; 1475 } 1476 *atareq = wi->wi_atareq; 1477 wi_free(wi); 1478 return(error1); 1479 } 1480 1481 case DIOCGSTRATEGY: 1482 { 1483 struct disk_strategy *dks = (void *)addr; 1484 1485 mutex_enter(&wd->sc_lock); 1486 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1487 sizeof(dks->dks_name)); 1488 mutex_exit(&wd->sc_lock); 1489 dks->dks_paramlen = 0; 1490 1491 return 0; 1492 } 1493 1494 case DIOCSSTRATEGY: 1495 { 1496 struct disk_strategy *dks = (void *)addr; 1497 struct bufq_state *new; 1498 struct bufq_state *old; 1499 1500 if ((flag & FWRITE) == 0) { 1501 return EBADF; 1502 } 1503 if (dks->dks_param != NULL) { 1504 return EINVAL; 1505 } 1506 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1507 error = bufq_alloc(&new, dks->dks_name, 1508 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1509 if (error) { 1510 return error; 1511 } 1512 mutex_enter(&wd->sc_lock); 1513 old = wd->sc_q; 1514 bufq_move(new, old); 1515 wd->sc_q = new; 1516 mutex_exit(&wd->sc_lock); 1517 bufq_free(old); 1518 1519 return 0; 1520 } 1521 1522 default: 1523 return ENOTTY; 1524 } 1525 1526 #ifdef DIAGNOSTIC 1527 panic("wdioctl: impossible"); 1528 #endif 1529 } 1530 1531 static int 1532 wddiscard(dev_t dev, off_t pos, off_t len) 1533 { 1534 struct wd_softc *wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1535 daddr_t bno; 1536 long size, done; 1537 long maxatonce, amount; 1538 int result; 1539 1540 if (!(wd->sc_params.atap_ata_major & WDC_VER_ATA7) 1541 || !(wd->sc_params.support_dsm & ATA_SUPPORT_DSM_TRIM)) { 1542 /* not supported; ignore request */ 1543 ATADEBUG_PRINT(("wddiscard (unsupported)\n"), DEBUG_FUNCS); 1544 return 0; 1545 } 1546 maxatonce = 0xffff; /*wd->sc_params.max_dsm_blocks*/ 1547 1548 ATADEBUG_PRINT(("wddiscard\n"), DEBUG_FUNCS); 1549 1550 if ((wd->sc_flags & WDF_LOADED) == 0) 1551 return EIO; 1552 1553 /* round the start up and the end down */ 1554 bno = (pos + wd->sc_blksize - 1) / wd->sc_blksize; 1555 size = ((pos + len) / wd->sc_blksize) - bno; 1556 1557 done = 0; 1558 while (done < size) { 1559 amount = size - done; 1560 if (amount > maxatonce) { 1561 amount = maxatonce; 1562 } 1563 result = wd_trim(wd, WDPART(dev), bno + done, amount); 1564 if (result) { 1565 return result; 1566 } 1567 done += amount; 1568 } 1569 return 0; 1570 } 1571 1572 #ifdef B_FORMAT 1573 int 1574 wdformat(struct buf *bp) 1575 { 1576 1577 bp->b_flags |= B_FORMAT; 1578 return wdstrategy(bp); 1579 } 1580 #endif 1581 1582 int 1583 wdsize(dev_t dev) 1584 { 1585 struct wd_softc *wd; 1586 int part, omask; 1587 int size; 1588 1589 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1590 1591 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1592 if (wd == NULL) 1593 return (-1); 1594 1595 part = WDPART(dev); 1596 omask = wd->sc_dk.dk_openmask & (1 << part); 1597 1598 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1599 return (-1); 1600 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1601 size = -1; 1602 else 1603 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1604 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1605 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1606 return (-1); 1607 return (size); 1608 } 1609 1610 /* 1611 * Dump core after a system crash. 1612 */ 1613 int 1614 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1615 { 1616 struct wd_softc *wd; /* disk unit to do the I/O */ 1617 struct disklabel *lp; /* disk's disklabel */ 1618 int part, err; 1619 int nblks; /* total number of sectors left to write */ 1620 struct ata_xfer *xfer; 1621 1622 /* Check if recursive dump; if so, punt. */ 1623 if (wddoingadump) 1624 return EFAULT; 1625 wddoingadump = 1; 1626 1627 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1628 if (wd == NULL) 1629 return (ENXIO); 1630 1631 part = WDPART(dev); 1632 1633 /* Convert to disk sectors. Request must be a multiple of size. */ 1634 lp = wd->sc_dk.dk_label; 1635 if ((size % lp->d_secsize) != 0) 1636 return EFAULT; 1637 nblks = size / lp->d_secsize; 1638 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1639 1640 /* Check transfer bounds against partition size. */ 1641 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1642 return EINVAL; 1643 1644 /* Offset block number to start of partition. */ 1645 blkno += lp->d_partitions[part].p_offset; 1646 1647 /* Recalibrate, if first dump transfer. */ 1648 if (wddumprecalibrated == 0) { 1649 wddumprecalibrated = 1; 1650 (*wd->atabus->ata_reset_drive)(wd->drvp, 1651 AT_POLL | AT_RST_EMERG, NULL); 1652 wd->drvp->state = RESET; 1653 } 1654 1655 xfer = ata_get_xfer_ext(wd->drvp->chnl_softc, false, 0); 1656 if (xfer == NULL) 1657 return EAGAIN; 1658 1659 xfer->c_bio.blkno = blkno; 1660 xfer->c_bio.flags = ATA_POLL; 1661 if (wd->sc_flags & WDF_LBA48 && 1662 (xfer->c_bio.blkno + nblks) > wd->sc_capacity28) 1663 xfer->c_bio.flags |= ATA_LBA48; 1664 if (wd->sc_flags & WDF_LBA) 1665 xfer->c_bio.flags |= ATA_LBA; 1666 xfer->c_bio.bcount = nblks * lp->d_secsize; 1667 xfer->c_bio.databuf = va; 1668 #ifndef WD_DUMP_NOT_TRUSTED 1669 switch (err = wd->atabus->ata_bio(wd->drvp, xfer)) { 1670 case ATACMD_TRY_AGAIN: 1671 panic("wddump: try again"); 1672 break; 1673 case ATACMD_QUEUED: 1674 panic("wddump: polled command has been queued"); 1675 break; 1676 case ATACMD_COMPLETE: 1677 break; 1678 default: 1679 panic("wddump: unknown atacmd code %d", err); 1680 } 1681 switch(err = xfer->c_bio.error) { 1682 case TIMEOUT: 1683 printf("wddump: device timed out"); 1684 err = EIO; 1685 break; 1686 case ERR_DF: 1687 printf("wddump: drive fault"); 1688 err = EIO; 1689 break; 1690 case ERR_DMA: 1691 printf("wddump: DMA error"); 1692 err = EIO; 1693 break; 1694 case ERROR: 1695 printf("wddump: "); 1696 wdperror(wd, xfer); 1697 err = EIO; 1698 break; 1699 case NOERROR: 1700 err = 0; 1701 break; 1702 default: 1703 panic("wddump: unknown error type %d", err); 1704 } 1705 1706 if (err != 0) { 1707 printf("\n"); 1708 return err; 1709 } 1710 #else /* WD_DUMP_NOT_TRUSTED */ 1711 /* Let's just talk about this first... */ 1712 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1713 unit, va, cylin, head, sector); 1714 delay(500 * 1000); /* half a second */ 1715 #endif 1716 1717 wddoingadump = 0; 1718 return 0; 1719 } 1720 1721 #ifdef HAS_BAD144_HANDLING 1722 /* 1723 * Internalize the bad sector table. 1724 */ 1725 void 1726 bad144intern(struct wd_softc *wd) 1727 { 1728 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1729 struct disklabel *lp = wd->sc_dk.dk_label; 1730 int i = 0; 1731 1732 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1733 1734 for (; i < NBT_BAD; i++) { 1735 if (bt->bt_bad[i].bt_cyl == 0xffff) 1736 break; 1737 wd->drvp->badsect[i] = 1738 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1739 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1740 (bt->bt_bad[i].bt_trksec & 0xff); 1741 } 1742 for (; i < NBT_BAD+1; i++) 1743 wd->drvp->badsect[i] = -1; 1744 } 1745 #endif 1746 1747 static void 1748 wd_params_to_properties(struct wd_softc *wd) 1749 { 1750 struct disk_geom *dg = &wd->sc_dk.dk_geom; 1751 1752 memset(dg, 0, sizeof(*dg)); 1753 1754 dg->dg_secperunit = wd->sc_capacity; 1755 dg->dg_secsize = wd->sc_blksize; 1756 dg->dg_nsectors = wd->sc_params.atap_sectors; 1757 dg->dg_ntracks = wd->sc_params.atap_heads; 1758 if ((wd->sc_flags & WDF_LBA) == 0) 1759 dg->dg_ncylinders = wd->sc_params.atap_cylinders; 1760 1761 /* XXX Should have a case for ATA here, too. */ 1762 const char *cp = strcmp(wd->sc_params.atap_model, "ST506") ? 1763 "ST506" : "ESDI"; 1764 1765 disk_set_info(wd->sc_dev, &wd->sc_dk, cp); 1766 } 1767 1768 int 1769 wd_get_params(struct wd_softc *wd, uint8_t flags, struct ataparams *params) 1770 { 1771 1772 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1773 case CMD_AGAIN: 1774 return 1; 1775 case CMD_ERR: 1776 if (wd->drvp->drive_type != ATA_DRIVET_OLD) 1777 return 1; 1778 /* 1779 * We `know' there's a drive here; just assume it's old. 1780 * This geometry is only used to read the MBR and print a 1781 * (false) attach message. 1782 */ 1783 strncpy(params->atap_model, "ST506", 1784 sizeof params->atap_model); 1785 params->atap_config = ATA_CFG_FIXED; 1786 params->atap_cylinders = 1024; 1787 params->atap_heads = 8; 1788 params->atap_sectors = 17; 1789 params->atap_multi = 1; 1790 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1791 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1792 /* FALLTHROUGH */ 1793 case CMD_OK: 1794 return 0; 1795 default: 1796 panic("wd_get_params: bad return code from ata_get_params"); 1797 /* NOTREACHED */ 1798 } 1799 } 1800 1801 int 1802 wd_getcache(struct wd_softc *wd, int *bitsp) 1803 { 1804 struct ataparams params; 1805 1806 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1807 return EIO; 1808 if (params.atap_cmd_set1 == 0x0000 || 1809 params.atap_cmd_set1 == 0xffff || 1810 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1811 *bitsp = 0; 1812 return 0; 1813 } 1814 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1815 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1816 *bitsp |= DKCACHE_WRITE; 1817 1818 if (wd->drvp->drive_flags & (ATA_DRIVE_NCQ|ATA_DRIVE_WFUA)) 1819 *bitsp |= DKCACHE_FUA; 1820 1821 return 0; 1822 } 1823 1824 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1825 1826 int 1827 wd_setcache(struct wd_softc *wd, int bits) 1828 { 1829 struct ataparams params; 1830 struct ata_xfer *xfer; 1831 int error; 1832 1833 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1834 return EIO; 1835 1836 if (params.atap_cmd_set1 == 0x0000 || 1837 params.atap_cmd_set1 == 0xffff || 1838 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1839 return EOPNOTSUPP; 1840 1841 if ((bits & DKCACHE_READ) == 0 || 1842 (bits & DKCACHE_SAVE) != 0) 1843 return EOPNOTSUPP; 1844 1845 xfer = ata_get_xfer(wd->drvp->chnl_softc); 1846 if (xfer == NULL) 1847 return EINTR; 1848 1849 xfer->c_ata_c.r_command = SET_FEATURES; 1850 xfer->c_ata_c.r_st_bmask = 0; 1851 xfer->c_ata_c.r_st_pmask = 0; 1852 xfer->c_ata_c.timeout = 30000; /* 30s timeout */ 1853 xfer->c_ata_c.flags = AT_WAIT; 1854 if (bits & DKCACHE_WRITE) 1855 xfer->c_ata_c.r_features = WDSF_WRITE_CACHE_EN; 1856 else 1857 xfer->c_ata_c.r_features = WDSF_WRITE_CACHE_DS; 1858 if (wd->atabus->ata_exec_command(wd->drvp, xfer) != ATACMD_COMPLETE) { 1859 aprint_error_dev(wd->sc_dev, 1860 "wd_setcache command not complete\n"); 1861 error = EIO; 1862 goto out; 1863 } 1864 1865 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1866 char sbuf[sizeof(at_errbits) + 64]; 1867 snprintb(sbuf, sizeof(sbuf), at_errbits, xfer->c_ata_c.flags); 1868 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1869 error = EIO; 1870 goto out; 1871 } 1872 1873 error = 0; 1874 1875 out: 1876 ata_free_xfer(wd->drvp->chnl_softc, xfer); 1877 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 1878 return error; 1879 } 1880 1881 static int 1882 wd_standby(struct wd_softc *wd, int flags) 1883 { 1884 struct ata_xfer *xfer; 1885 int error; 1886 1887 xfer = ata_get_xfer(wd->drvp->chnl_softc); 1888 if (xfer == NULL) 1889 return EINTR; 1890 1891 xfer->c_ata_c.r_command = WDCC_STANDBY_IMMED; 1892 xfer->c_ata_c.r_st_bmask = WDCS_DRDY; 1893 xfer->c_ata_c.r_st_pmask = WDCS_DRDY; 1894 xfer->c_ata_c.flags = flags; 1895 xfer->c_ata_c.timeout = 30000; /* 30s timeout */ 1896 if (wd->atabus->ata_exec_command(wd->drvp, xfer) != ATACMD_COMPLETE) { 1897 aprint_error_dev(wd->sc_dev, 1898 "standby immediate command didn't complete\n"); 1899 error = EIO; 1900 goto out; 1901 } 1902 if (xfer->c_ata_c.flags & AT_ERROR) { 1903 if (xfer->c_ata_c.r_error == WDCE_ABRT) { 1904 /* command not supported */ 1905 error = ENODEV; 1906 goto out; 1907 } 1908 } 1909 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1910 char sbuf[sizeof(at_errbits) + 64]; 1911 snprintb(sbuf, sizeof(sbuf), at_errbits, xfer->c_ata_c.flags); 1912 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1913 error = EIO; 1914 goto out; 1915 } 1916 error = 0; 1917 1918 out: 1919 ata_free_xfer(wd->drvp->chnl_softc, xfer); 1920 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 1921 return error; 1922 } 1923 1924 int 1925 wd_flushcache(struct wd_softc *wd, int flags) 1926 { 1927 struct ata_xfer *xfer; 1928 int error; 1929 1930 /* 1931 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1932 * only ATA-2 and still support it. 1933 */ 1934 if (wd->drvp->ata_vers < 4 && 1935 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1936 wd->sc_params.atap_cmd_set2 == 0xffff)) 1937 return ENODEV; 1938 1939 mutex_enter(&wd->sc_lock); 1940 SET(wd->sc_flags, WDF_FLUSH_PEND); 1941 mutex_exit(&wd->sc_lock); 1942 1943 xfer = ata_get_xfer(wd->drvp->chnl_softc); 1944 1945 mutex_enter(&wd->sc_lock); 1946 CLR(wd->sc_flags, WDF_FLUSH_PEND); 1947 mutex_exit(&wd->sc_lock); 1948 1949 if (xfer == NULL) { 1950 error = EINTR; 1951 goto out; 1952 } 1953 1954 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1955 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) { 1956 xfer->c_ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1957 flags |= AT_LBA48; 1958 } else 1959 xfer->c_ata_c.r_command = WDCC_FLUSHCACHE; 1960 xfer->c_ata_c.r_st_bmask = WDCS_DRDY; 1961 xfer->c_ata_c.r_st_pmask = WDCS_DRDY; 1962 xfer->c_ata_c.flags = flags | AT_READREG; 1963 xfer->c_ata_c.timeout = 300000; /* 5m timeout */ 1964 if (wd->atabus->ata_exec_command(wd->drvp, xfer) != ATACMD_COMPLETE) { 1965 aprint_error_dev(wd->sc_dev, 1966 "flush cache command didn't complete\n"); 1967 error = EIO; 1968 goto out_xfer; 1969 } 1970 if (xfer->c_ata_c.flags & AT_ERROR) { 1971 if (xfer->c_ata_c.r_error == WDCE_ABRT) { 1972 /* command not supported */ 1973 error = ENODEV; 1974 goto out_xfer; 1975 } 1976 } 1977 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1978 char sbuf[sizeof(at_errbits) + 64]; 1979 snprintb(sbuf, sizeof(sbuf), at_errbits, xfer->c_ata_c.flags); 1980 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1981 sbuf); 1982 error = EIO; 1983 goto out_xfer; 1984 } 1985 error = 0; 1986 1987 out_xfer: 1988 ata_free_xfer(wd->drvp->chnl_softc, xfer); 1989 1990 out: 1991 /* kick queue processing blocked while waiting for flush xfer */ 1992 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 1993 1994 return error; 1995 } 1996 1997 int 1998 wd_trim(struct wd_softc *wd, int part, daddr_t bno, long size) 1999 { 2000 struct ata_xfer *xfer; 2001 int error; 2002 unsigned char *req; 2003 2004 if (part != RAW_PART) 2005 bno += wd->sc_dk.dk_label->d_partitions[part].p_offset;; 2006 2007 xfer = ata_get_xfer(wd->drvp->chnl_softc); 2008 if (xfer == NULL) 2009 return EINTR; 2010 2011 req = kmem_zalloc(512, KM_SLEEP); 2012 req[0] = bno & 0xff; 2013 req[1] = (bno >> 8) & 0xff; 2014 req[2] = (bno >> 16) & 0xff; 2015 req[3] = (bno >> 24) & 0xff; 2016 req[4] = (bno >> 32) & 0xff; 2017 req[5] = (bno >> 40) & 0xff; 2018 req[6] = size & 0xff; 2019 req[7] = (size >> 8) & 0xff; 2020 2021 xfer->c_ata_c.r_command = ATA_DATA_SET_MANAGEMENT; 2022 xfer->c_ata_c.r_count = 1; 2023 xfer->c_ata_c.r_features = ATA_SUPPORT_DSM_TRIM; 2024 xfer->c_ata_c.r_st_bmask = WDCS_DRDY; 2025 xfer->c_ata_c.r_st_pmask = WDCS_DRDY; 2026 xfer->c_ata_c.timeout = 30000; /* 30s timeout */ 2027 xfer->c_ata_c.data = req; 2028 xfer->c_ata_c.bcount = 512; 2029 xfer->c_ata_c.flags |= AT_WRITE | AT_WAIT; 2030 if (wd->atabus->ata_exec_command(wd->drvp, xfer) != ATACMD_COMPLETE) { 2031 aprint_error_dev(wd->sc_dev, 2032 "trim command didn't complete\n"); 2033 kmem_free(req, 512); 2034 error = EIO; 2035 goto out; 2036 } 2037 kmem_free(req, 512); 2038 if (xfer->c_ata_c.flags & AT_ERROR) { 2039 if (xfer->c_ata_c.r_error == WDCE_ABRT) { 2040 /* command not supported */ 2041 error = ENODEV; 2042 goto out; 2043 } 2044 } 2045 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2046 char sbuf[sizeof(at_errbits) + 64]; 2047 snprintb(sbuf, sizeof(sbuf), at_errbits, xfer->c_ata_c.flags); 2048 aprint_error_dev(wd->sc_dev, "wd_trim: status=%s\n", 2049 sbuf); 2050 error = EIO; 2051 goto out; 2052 } 2053 error = 0; 2054 2055 out: 2056 ata_free_xfer(wd->drvp->chnl_softc, xfer); 2057 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 2058 return error; 2059 } 2060 2061 bool 2062 wd_shutdown(device_t dev, int how) 2063 { 2064 struct wd_softc *wd = device_private(dev); 2065 2066 /* the adapter needs to be enabled */ 2067 if (wd->atabus->ata_addref(wd->drvp)) 2068 return true; /* no need to complain */ 2069 2070 wd_flushcache(wd, AT_POLL); 2071 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 2072 wd_standby(wd, AT_POLL); 2073 return true; 2074 } 2075 2076 /* 2077 * Allocate space for a ioctl queue structure. Mostly taken from 2078 * scsipi_ioctl.c 2079 */ 2080 struct wd_ioctl * 2081 wi_get(struct wd_softc *wd) 2082 { 2083 struct wd_ioctl *wi; 2084 2085 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 2086 wi->wi_softc = wd; 2087 buf_init(&wi->wi_bp); 2088 2089 return (wi); 2090 } 2091 2092 /* 2093 * Free an ioctl structure and remove it from our list 2094 */ 2095 2096 void 2097 wi_free(struct wd_ioctl *wi) 2098 { 2099 buf_destroy(&wi->wi_bp); 2100 free(wi, M_TEMP); 2101 } 2102 2103 /* 2104 * Find a wd_ioctl structure based on the struct buf. 2105 */ 2106 2107 struct wd_ioctl * 2108 wi_find(struct buf *bp) 2109 { 2110 return container_of(bp, struct wd_ioctl, wi_bp); 2111 } 2112 2113 static uint 2114 wi_sector_size(const struct wd_ioctl * const wi) 2115 { 2116 switch (wi->wi_atareq.command) { 2117 case WDCC_READ: 2118 case WDCC_WRITE: 2119 case WDCC_READMULTI: 2120 case WDCC_WRITEMULTI: 2121 case WDCC_READDMA: 2122 case WDCC_WRITEDMA: 2123 case WDCC_READ_EXT: 2124 case WDCC_WRITE_EXT: 2125 case WDCC_READMULTI_EXT: 2126 case WDCC_WRITEMULTI_EXT: 2127 case WDCC_READDMA_EXT: 2128 case WDCC_WRITEDMA_EXT: 2129 case WDCC_READ_FPDMA_QUEUED: 2130 case WDCC_WRITE_FPDMA_QUEUED: 2131 return wi->wi_softc->sc_blksize; 2132 default: 2133 return 512; 2134 } 2135 } 2136 2137 /* 2138 * Ioctl pseudo strategy routine 2139 * 2140 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2141 * happens here is: 2142 * 2143 * - wdioctl() queues a wd_ioctl structure. 2144 * 2145 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2146 * user space I/O is required. If physio() is called, physio() eventually 2147 * calls wdioctlstrategy(). 2148 * 2149 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2150 * to perform the actual command 2151 * 2152 * The reason for the use of the pseudo strategy routine is because 2153 * when doing I/O to/from user space, physio _really_ wants to be in 2154 * the loop. We could put the entire buffer into the ioctl request 2155 * structure, but that won't scale if we want to do things like download 2156 * microcode. 2157 */ 2158 2159 void 2160 wdioctlstrategy(struct buf *bp) 2161 { 2162 struct wd_ioctl *wi; 2163 struct ata_xfer *xfer; 2164 int error = 0; 2165 2166 wi = wi_find(bp); 2167 if (wi == NULL) { 2168 printf("wdioctlstrategy: " 2169 "No matching ioctl request found in queue\n"); 2170 error = EINVAL; 2171 goto out2; 2172 } 2173 2174 xfer = ata_get_xfer(wi->wi_softc->drvp->chnl_softc); 2175 if (xfer == NULL) { 2176 error = EINTR; 2177 goto out2; 2178 } 2179 2180 /* 2181 * Abort if physio broke up the transfer 2182 */ 2183 2184 if (bp->b_bcount != wi->wi_atareq.datalen) { 2185 printf("physio split wd ioctl request... cannot proceed\n"); 2186 error = EIO; 2187 goto out; 2188 } 2189 2190 /* 2191 * Abort if we didn't get a buffer size that was a multiple of 2192 * our sector size (or overflows CHS/LBA28 sector count) 2193 */ 2194 2195 if ((bp->b_bcount % wi_sector_size(wi)) != 0 || 2196 (bp->b_bcount / wi_sector_size(wi)) >= 2197 (1 << NBBY)) { 2198 error = EINVAL; 2199 goto out; 2200 } 2201 2202 /* 2203 * Make sure a timeout was supplied in the ioctl request 2204 */ 2205 2206 if (wi->wi_atareq.timeout == 0) { 2207 error = EINVAL; 2208 goto out; 2209 } 2210 2211 if (wi->wi_atareq.flags & ATACMD_READ) 2212 xfer->c_ata_c.flags |= AT_READ; 2213 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2214 xfer->c_ata_c.flags |= AT_WRITE; 2215 2216 if (wi->wi_atareq.flags & ATACMD_READREG) 2217 xfer->c_ata_c.flags |= AT_READREG; 2218 2219 if ((wi->wi_atareq.flags & ATACMD_LBA) != 0) 2220 xfer->c_ata_c.flags |= AT_LBA; 2221 2222 xfer->c_ata_c.flags |= AT_WAIT; 2223 2224 xfer->c_ata_c.timeout = wi->wi_atareq.timeout; 2225 xfer->c_ata_c.r_command = wi->wi_atareq.command; 2226 xfer->c_ata_c.r_lba = ((wi->wi_atareq.head & 0x0f) << 24) | 2227 (wi->wi_atareq.cylinder << 8) | 2228 wi->wi_atareq.sec_num; 2229 xfer->c_ata_c.r_count = wi->wi_atareq.sec_count; 2230 xfer->c_ata_c.r_features = wi->wi_atareq.features; 2231 xfer->c_ata_c.r_st_bmask = WDCS_DRDY; 2232 xfer->c_ata_c.r_st_pmask = WDCS_DRDY; 2233 xfer->c_ata_c.data = wi->wi_bp.b_data; 2234 xfer->c_ata_c.bcount = wi->wi_bp.b_bcount; 2235 2236 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, xfer) 2237 != ATACMD_COMPLETE) { 2238 wi->wi_atareq.retsts = ATACMD_ERROR; 2239 error = EIO; 2240 goto out; 2241 } 2242 2243 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2244 if (xfer->c_ata_c.flags & AT_ERROR) { 2245 wi->wi_atareq.retsts = ATACMD_ERROR; 2246 wi->wi_atareq.error = xfer->c_ata_c.r_error; 2247 } else if (xfer->c_ata_c.flags & AT_DF) 2248 wi->wi_atareq.retsts = ATACMD_DF; 2249 else 2250 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2251 } else { 2252 wi->wi_atareq.retsts = ATACMD_OK; 2253 if (wi->wi_atareq.flags & ATACMD_READREG) { 2254 wi->wi_atareq.command = xfer->c_ata_c.r_status; 2255 wi->wi_atareq.features = xfer->c_ata_c.r_error; 2256 wi->wi_atareq.sec_count = xfer->c_ata_c.r_count; 2257 wi->wi_atareq.sec_num = xfer->c_ata_c.r_lba & 0xff; 2258 wi->wi_atareq.head = (xfer->c_ata_c.r_device & 0xf0) | 2259 ((xfer->c_ata_c.r_lba >> 24) & 0x0f); 2260 wi->wi_atareq.cylinder = 2261 (xfer->c_ata_c.r_lba >> 8) & 0xffff; 2262 wi->wi_atareq.error = xfer->c_ata_c.r_error; 2263 } 2264 } 2265 2266 out: 2267 ata_free_xfer(wi->wi_softc->drvp->chnl_softc, xfer); 2268 ata_channel_start(wi->wi_softc->drvp->chnl_softc, 2269 wi->wi_softc->drvp->drive); 2270 out2: 2271 bp->b_error = error; 2272 if (error) 2273 bp->b_resid = bp->b_bcount; 2274 biodone(bp); 2275 } 2276
Indexes created Tue Oct 21 16:10:11 GMT 2025