wd.c revision 1.205.2.1
1 /* $NetBSD: wd.c,v 1.205.2.1 2001/05/01 12:27:11 he Exp $ */ 2 3 /* 4 * Copyright (c) 1998 Manuel Bouyer. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1998 The NetBSD Foundation, Inc. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to The NetBSD Foundation 37 * by Charles M. Hannum and by Onno van der Linden. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by the NetBSD 50 * Foundation, Inc. and its contributors. 51 * 4. Neither the name of The NetBSD Foundation nor the names of its 52 * contributors may be used to endorse or promote products derived 53 * from this software without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 56 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 57 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 58 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 59 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 60 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 61 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 62 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 63 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 64 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 65 * POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #ifndef WDCDEBUG 69 #define WDCDEBUG 70 #endif /* WDCDEBUG */ 71 72 #include "rnd.h" 73 74 #include <sys/param.h> 75 #include <sys/systm.h> 76 #include <sys/kernel.h> 77 #include <sys/conf.h> 78 #include <sys/file.h> 79 #include <sys/stat.h> 80 #include <sys/ioctl.h> 81 #include <sys/buf.h> 82 #include <sys/uio.h> 83 #include <sys/malloc.h> 84 #include <sys/device.h> 85 #include <sys/disklabel.h> 86 #include <sys/disk.h> 87 #include <sys/syslog.h> 88 #include <sys/proc.h> 89 #include <sys/vnode.h> 90 #if NRND > 0 91 #include <sys/rnd.h> 92 #endif 93 94 #include <vm/vm.h> 95 96 #include <machine/intr.h> 97 #include <machine/bus.h> 98 99 #include <dev/ata/atareg.h> 100 #include <dev/ata/atavar.h> 101 #include <dev/ata/wdvar.h> 102 #include <dev/ic/wdcreg.h> 103 #include <sys/ataio.h> 104 #include "locators.h" 105 106 #define WAITTIME (4 * hz) /* time to wait for a completion */ 107 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 108 #define WDIORETRIES 5 /* number of retries before giving up */ 109 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 110 111 #define WDUNIT(dev) DISKUNIT(dev) 112 #define WDPART(dev) DISKPART(dev) 113 #define WDMINOR(unit, part) DISKMINOR(unit, part) 114 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 115 116 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 117 118 #define DEBUG_INTR 0x01 119 #define DEBUG_XFERS 0x02 120 #define DEBUG_STATUS 0x04 121 #define DEBUG_FUNCS 0x08 122 #define DEBUG_PROBE 0x10 123 #ifdef WDCDEBUG 124 extern int wdcdebug_wd_mask; /* init'ed in ata_wdc.c */ 125 #define WDCDEBUG_PRINT(args, level) \ 126 if (wdcdebug_wd_mask & (level)) \ 127 printf args 128 #else 129 #define WDCDEBUG_PRINT(args, level) 130 #endif 131 132 struct wd_softc { 133 /* General disk infos */ 134 struct device sc_dev; 135 struct disk sc_dk; 136 struct buf_queue sc_q; 137 struct callout sc_restart_ch; 138 /* IDE disk soft states */ 139 struct ata_bio sc_wdc_bio; /* current transfer */ 140 struct buf *sc_bp; /* buf being transfered */ 141 void *wdc_softc; /* pointer to our parent */ 142 struct ata_drive_datas *drvp; /* Our controller's infos */ 143 int openings; 144 struct ataparams sc_params;/* drive characteistics found */ 145 int sc_flags; 146 #define WDF_LOCKED 0x01 147 #define WDF_WANTED 0x02 148 #define WDF_WLABEL 0x04 /* label is writable */ 149 #define WDF_LABELLING 0x08 /* writing label */ 150 /* 151 * XXX Nothing resets this yet, but disk change sensing will when ATA-4 is 152 * more fully implemented. 153 */ 154 #define WDF_LOADED 0x10 /* parameters loaded */ 155 #define WDF_WAIT 0x20 /* waiting for resources */ 156 #define WDF_LBA 0x40 /* using LBA mode */ 157 #define WDF_KLABEL 0x80 /* retain label after 'full' close */ 158 int sc_capacity; 159 int cyl; /* actual drive parameters */ 160 int heads; 161 int sectors; 162 int retries; /* number of xfer retry */ 163 164 void *sc_sdhook; /* our shutdown hook */ 165 166 #if NRND > 0 167 rndsource_element_t rnd_source; 168 #endif 169 }; 170 171 #define sc_drive sc_wdc_bio.drive 172 #define sc_mode sc_wdc_bio.mode 173 #define sc_multi sc_wdc_bio.multi 174 #define sc_badsect sc_wdc_bio.badsect 175 176 int wdprobe __P((struct device *, struct cfdata *, void *)); 177 void wdattach __P((struct device *, struct device *, void *)); 178 int wddetach __P((struct device *, int)); 179 int wdactivate __P((struct device *, enum devact)); 180 int wdprint __P((void *, char *)); 181 182 struct cfattach wd_ca = { 183 sizeof(struct wd_softc), wdprobe, wdattach, wddetach, wdactivate 184 }; 185 186 extern struct cfdriver wd_cd; 187 188 /* 189 * Glue necessary to hook WDCIOCCOMMAND into physio 190 */ 191 192 struct wd_ioctl { 193 LIST_ENTRY(wd_ioctl) wi_list; 194 struct buf wi_bp; 195 struct uio wi_uio; 196 struct iovec wi_iov; 197 atareq_t wi_atareq; 198 struct wd_softc *wi_softc; 199 }; 200 201 LIST_HEAD(, wd_ioctl) wi_head; 202 203 struct wd_ioctl *wi_find __P((struct buf *)); 204 void wi_free __P((struct wd_ioctl *)); 205 struct wd_ioctl *wi_get __P((void)); 206 void wdioctlstrategy __P((struct buf *)); 207 208 void wdgetdefaultlabel __P((struct wd_softc *, struct disklabel *)); 209 void wdgetdisklabel __P((struct wd_softc *)); 210 void wdstrategy __P((struct buf *)); 211 void wdstart __P((void *)); 212 void __wdstart __P((struct wd_softc*, struct buf *)); 213 void wdrestart __P((void*)); 214 int wd_get_params __P((struct wd_softc *, u_int8_t, struct ataparams *)); 215 void wd_flushcache __P((struct wd_softc *, int)); 216 void wd_shutdown __P((void*)); 217 218 struct dkdriver wddkdriver = { wdstrategy }; 219 220 /* XXX: these should go elsewhere */ 221 cdev_decl(wd); 222 bdev_decl(wd); 223 224 #ifdef HAS_BAD144_HANDLING 225 static void bad144intern __P((struct wd_softc *)); 226 #endif 227 int wdlock __P((struct wd_softc *)); 228 void wdunlock __P((struct wd_softc *)); 229 230 int 231 wdprobe(parent, match, aux) 232 struct device *parent; 233 struct cfdata *match; 234 235 void *aux; 236 { 237 struct ata_atapi_attach *aa_link = aux; 238 239 if (aa_link == NULL) 240 return 0; 241 if (aa_link->aa_type != T_ATA) 242 return 0; 243 244 if (match->cf_loc[ATACF_CHANNEL] != ATACF_CHANNEL_DEFAULT && 245 match->cf_loc[ATACF_CHANNEL] != aa_link->aa_channel) 246 return 0; 247 248 if (match->cf_loc[ATACF_DRIVE] != ATACF_DRIVE_DEFAULT && 249 match->cf_loc[ATACF_DRIVE] != aa_link->aa_drv_data->drive) 250 return 0; 251 return 1; 252 } 253 254 void 255 wdattach(parent, self, aux) 256 struct device *parent, *self; 257 void *aux; 258 { 259 struct wd_softc *wd = (void *)self; 260 struct ata_atapi_attach *aa_link= aux; 261 int i, blank; 262 char buf[41], pbuf[9], c, *p, *q; 263 WDCDEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 264 265 callout_init(&wd->sc_restart_ch); 266 BUFQ_INIT(&wd->sc_q); 267 268 wd->openings = aa_link->aa_openings; 269 wd->drvp = aa_link->aa_drv_data;; 270 wd->wdc_softc = parent; 271 /* give back our softc to our caller */ 272 wd->drvp->drv_softc = &wd->sc_dev; 273 274 /* read our drive info */ 275 if (wd_get_params(wd, AT_POLL, &wd->sc_params) != 0) { 276 printf("%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 277 return; 278 } 279 280 for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0; 281 i < sizeof(wd->sc_params.atap_model); i++) { 282 c = *p++; 283 if (c == '\0') 284 break; 285 if (c != ' ') { 286 if (blank) { 287 *q++ = ' '; 288 blank = 0; 289 } 290 *q++ = c; 291 } else 292 blank = 1; 293 } 294 *q++ = '\0'; 295 296 printf(": <%s>\n", buf); 297 298 if ((wd->sc_params.atap_multi & 0xff) > 1) { 299 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 300 } else { 301 wd->sc_multi = 1; 302 } 303 304 printf("%s: drive supports %d-sector pio transfers,", 305 wd->sc_dev.dv_xname, wd->sc_multi); 306 307 /* Prior to ATA-4, LBA was optional. */ 308 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 309 wd->sc_flags |= WDF_LBA; 310 #if 0 311 /* ATA-4 requires LBA. */ 312 if (wd->sc_params.atap_ataversion != 0xffff && 313 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 314 wd->sc_flags |= WDF_LBA; 315 #endif 316 317 if ((wd->sc_flags & WDF_LBA) != 0) { 318 printf(" lba addressing\n"); 319 wd->sc_capacity = 320 (wd->sc_params.atap_capacity[1] << 16) | 321 wd->sc_params.atap_capacity[0]; 322 } else { 323 printf(" chs addressing\n"); 324 wd->sc_capacity = 325 wd->sc_params.atap_cylinders * 326 wd->sc_params.atap_heads * 327 wd->sc_params.atap_sectors; 328 } 329 format_bytes(pbuf, sizeof(pbuf), 330 (u_int64_t)wd->sc_capacity * DEV_BSIZE); 331 printf("%s: %s, %d cyl, %d head, %d sec, " 332 "%d bytes/sect x %d sectors\n", 333 self->dv_xname, pbuf, wd->sc_params.atap_cylinders, 334 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 335 DEV_BSIZE, wd->sc_capacity); 336 337 WDCDEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 338 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 339 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 340 /* 341 * Initialize and attach the disk structure. 342 */ 343 wd->sc_dk.dk_driver = &wddkdriver; 344 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 345 disk_attach(&wd->sc_dk); 346 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 347 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 348 if (wd->sc_sdhook == NULL) 349 printf("%s: WARNING: unable to establish shutdown hook\n", 350 wd->sc_dev.dv_xname); 351 #if NRND > 0 352 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 353 RND_TYPE_DISK, 0); 354 #endif 355 } 356 357 int 358 wdactivate(self, act) 359 struct device *self; 360 enum devact act; 361 { 362 int rv = 0; 363 364 switch (act) { 365 case DVACT_ACTIVATE: 366 rv = EOPNOTSUPP; 367 break; 368 369 case DVACT_DEACTIVATE: 370 /* 371 * Nothing to do; we key off the device's DVF_ACTIVATE. 372 */ 373 break; 374 } 375 return (rv); 376 } 377 378 int 379 wddetach(self, flags) 380 struct device *self; 381 int flags; 382 { 383 struct wd_softc *sc = (struct wd_softc *)self; 384 struct buf *bp; 385 int s, bmaj, cmaj, mn; 386 387 /* locate the major number */ 388 for (bmaj = 0; bmaj < nblkdev; bmaj++) 389 if (bdevsw[bmaj].d_open == wdopen) 390 break; 391 for (cmaj = 0; cmaj < nchrdev; cmaj++) 392 if (cdevsw[cmaj].d_open == wdopen) 393 break; 394 395 s = splbio(); 396 397 /* Kill off any queued buffers. */ 398 while ((bp = BUFQ_FIRST(&sc->sc_q)) != NULL) { 399 BUFQ_REMOVE(&sc->sc_q, bp); 400 bp->b_error = EIO; 401 bp->b_flags |= B_ERROR; 402 bp->b_resid = bp->b_bcount; 403 biodone(bp); 404 } 405 406 splx(s); 407 408 /* Nuke the vnodes for any open instances. */ 409 mn = WDMINOR(self->dv_unit, 0); 410 vdevgone(bmaj, mn, mn + MAXPARTITIONS - 1, VBLK); 411 vdevgone(cmaj, mn, mn + MAXPARTITIONS - 1, VCHR); 412 413 /* Detach disk. */ 414 disk_detach(&sc->sc_dk); 415 416 /* Get rid of the shutdown hook. */ 417 if (sc->sc_sdhook != NULL) 418 shutdownhook_disestablish(sc->sc_sdhook); 419 420 #if NRND > 0 421 /* Unhook the entropy source. */ 422 rnd_detach_source(&sc->rnd_source); 423 #endif 424 425 return (0); 426 } 427 428 /* 429 * Read/write routine for a buffer. Validates the arguments and schedules the 430 * transfer. Does not wait for the transfer to complete. 431 */ 432 void 433 wdstrategy(bp) 434 struct buf *bp; 435 { 436 struct wd_softc *wd = wd_cd.cd_devs[WDUNIT(bp->b_dev)]; 437 struct disklabel *lp = wd->sc_dk.dk_label; 438 daddr_t blkno; 439 int s; 440 441 WDCDEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 442 DEBUG_XFERS); 443 444 /* Valid request? */ 445 if (bp->b_blkno < 0 || 446 (bp->b_bcount % lp->d_secsize) != 0 || 447 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 448 bp->b_error = EINVAL; 449 goto bad; 450 } 451 452 /* If device invalidated (e.g. media change, door open), error. */ 453 if ((wd->sc_flags & WDF_LOADED) == 0) { 454 bp->b_error = EIO; 455 goto bad; 456 } 457 458 /* If it's a null transfer, return immediately. */ 459 if (bp->b_bcount == 0) 460 goto done; 461 462 /* 463 * Do bounds checking, adjust transfer. if error, process. 464 * If end of partition, just return. 465 */ 466 if (WDPART(bp->b_dev) != RAW_PART && 467 bounds_check_with_label(bp, wd->sc_dk.dk_label, 468 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 469 goto done; 470 471 /* 472 * Now convert the block number to absolute and put it in 473 * terms of the device's logical block size. 474 */ 475 if (lp->d_secsize >= DEV_BSIZE) 476 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 477 else 478 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 479 480 if (WDPART(bp->b_dev) != RAW_PART) 481 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 482 483 bp->b_rawblkno = blkno; 484 485 /* Queue transfer on drive, activate drive and controller if idle. */ 486 s = splbio(); 487 disksort_blkno(&wd->sc_q, bp); 488 wdstart(wd); 489 splx(s); 490 return; 491 bad: 492 bp->b_flags |= B_ERROR; 493 done: 494 /* Toss transfer; we're done early. */ 495 bp->b_resid = bp->b_bcount; 496 biodone(bp); 497 } 498 499 /* 500 * Queue a drive for I/O. 501 */ 502 void 503 wdstart(arg) 504 void *arg; 505 { 506 struct wd_softc *wd = arg; 507 struct buf *bp = NULL; 508 509 WDCDEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 510 DEBUG_XFERS); 511 while (wd->openings > 0) { 512 513 /* Is there a buf for us ? */ 514 if ((bp = BUFQ_FIRST(&wd->sc_q)) == NULL) 515 return; 516 BUFQ_REMOVE(&wd->sc_q, bp); 517 518 /* 519 * Make the command. First lock the device 520 */ 521 wd->openings--; 522 523 wd->retries = 0; 524 __wdstart(wd, bp); 525 } 526 } 527 528 void 529 __wdstart(wd, bp) 530 struct wd_softc *wd; 531 struct buf *bp; 532 { 533 534 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 535 wd->sc_wdc_bio.blkdone =0; 536 wd->sc_bp = bp; 537 /* 538 * If we're retrying, retry in single-sector mode. This will give us 539 * the sector number of the problem, and will eventually allow the 540 * transfer to succeed. 541 */ 542 if (wd->sc_multi == 1 || wd->retries >= WDIORETRIES_SINGLE) 543 wd->sc_wdc_bio.flags = ATA_SINGLE; 544 else 545 wd->sc_wdc_bio.flags = 0; 546 if (wd->sc_flags & WDF_LBA) 547 wd->sc_wdc_bio.flags |= ATA_LBA; 548 if (bp->b_flags & B_READ) 549 wd->sc_wdc_bio.flags |= ATA_READ; 550 wd->sc_wdc_bio.bcount = bp->b_bcount; 551 wd->sc_wdc_bio.databuf = bp->b_data; 552 /* Instrumentation. */ 553 disk_busy(&wd->sc_dk); 554 switch (wdc_ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 555 case WDC_TRY_AGAIN: 556 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 557 break; 558 case WDC_QUEUED: 559 case WDC_COMPLETE: 560 break; 561 default: 562 panic("__wdstart: bad return code from wdc_ata_bio()"); 563 } 564 } 565 566 void 567 wddone(v) 568 void *v; 569 { 570 struct wd_softc *wd = v; 571 struct buf *bp = wd->sc_bp; 572 char buf[256], *errbuf = buf; 573 WDCDEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 574 DEBUG_XFERS); 575 576 bp->b_resid = wd->sc_wdc_bio.bcount; 577 errbuf[0] = '\0'; 578 switch (wd->sc_wdc_bio.error) { 579 case ERR_DMA: 580 errbuf = "DMA error"; 581 goto retry; 582 case ERR_DF: 583 errbuf = "device fault"; 584 goto retry; 585 case TIMEOUT: 586 errbuf = "device timeout"; 587 goto retry; 588 case ERROR: 589 /* Don't care about media change bits */ 590 if (wd->sc_wdc_bio.r_error != 0 && 591 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 592 goto noerror; 593 ata_perror(wd->drvp, wd->sc_wdc_bio.r_error, errbuf); 594 retry: /* Just reset and retry. Can we do more ? */ 595 wdc_reset_channel(wd->drvp); 596 diskerr(bp, "wd", errbuf, LOG_PRINTF, 597 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 598 if (wd->retries++ < WDIORETRIES) { 599 printf(", retrying\n"); 600 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 601 wdrestart, wd); 602 return; 603 } 604 printf("\n"); 605 bp->b_flags |= B_ERROR; 606 bp->b_error = EIO; 607 break; 608 case NOERROR: 609 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 610 printf("%s: soft error (corrected)\n", 611 wd->sc_dev.dv_xname); 612 break; 613 case ERR_NODEV: 614 bp->b_flags |= B_ERROR; 615 bp->b_error = EIO; 616 break; 617 } 618 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid)); 619 #if NRND > 0 620 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 621 #endif 622 biodone(bp); 623 wd->openings++; 624 wdstart(wd); 625 } 626 627 void 628 wdrestart(v) 629 void *v; 630 { 631 struct wd_softc *wd = v; 632 struct buf *bp = wd->sc_bp; 633 int s; 634 WDCDEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 635 DEBUG_XFERS); 636 637 s = splbio(); 638 __wdstart(v, bp); 639 splx(s); 640 } 641 642 int 643 wdread(dev, uio, flags) 644 dev_t dev; 645 struct uio *uio; 646 int flags; 647 { 648 649 WDCDEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 650 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 651 } 652 653 int 654 wdwrite(dev, uio, flags) 655 dev_t dev; 656 struct uio *uio; 657 int flags; 658 { 659 660 WDCDEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 661 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 662 } 663 664 /* 665 * Wait interruptibly for an exclusive lock. 666 * 667 * XXX 668 * Several drivers do this; it should be abstracted and made MP-safe. 669 */ 670 int 671 wdlock(wd) 672 struct wd_softc *wd; 673 { 674 int error; 675 int s; 676 677 WDCDEBUG_PRINT(("wdlock\n"), DEBUG_FUNCS); 678 679 s = splbio(); 680 681 while ((wd->sc_flags & WDF_LOCKED) != 0) { 682 wd->sc_flags |= WDF_WANTED; 683 if ((error = tsleep(wd, PRIBIO | PCATCH, 684 "wdlck", 0)) != 0) { 685 splx(s); 686 return error; 687 } 688 } 689 wd->sc_flags |= WDF_LOCKED; 690 splx(s); 691 return 0; 692 } 693 694 /* 695 * Unlock and wake up any waiters. 696 */ 697 void 698 wdunlock(wd) 699 struct wd_softc *wd; 700 { 701 702 WDCDEBUG_PRINT(("wdunlock\n"), DEBUG_FUNCS); 703 704 wd->sc_flags &= ~WDF_LOCKED; 705 if ((wd->sc_flags & WDF_WANTED) != 0) { 706 wd->sc_flags &= ~WDF_WANTED; 707 wakeup(wd); 708 } 709 } 710 711 int 712 wdopen(dev, flag, fmt, p) 713 dev_t dev; 714 int flag, fmt; 715 struct proc *p; 716 { 717 struct wd_softc *wd; 718 int unit, part; 719 int error; 720 721 WDCDEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 722 unit = WDUNIT(dev); 723 if (unit >= wd_cd.cd_ndevs) 724 return ENXIO; 725 wd = wd_cd.cd_devs[unit]; 726 if (wd == NULL) 727 return ENXIO; 728 729 /* 730 * If this is the first open of this device, add a reference 731 * to the adapter. 732 */ 733 if (wd->sc_dk.dk_openmask == 0 && 734 (error = wdc_ata_addref(wd->drvp)) != 0) 735 return (error); 736 737 if ((error = wdlock(wd)) != 0) 738 goto bad4; 739 740 if (wd->sc_dk.dk_openmask != 0) { 741 /* 742 * If any partition is open, but the disk has been invalidated, 743 * disallow further opens. 744 */ 745 if ((wd->sc_flags & WDF_LOADED) == 0) { 746 error = EIO; 747 goto bad3; 748 } 749 } else { 750 if ((wd->sc_flags & WDF_LOADED) == 0) { 751 wd->sc_flags |= WDF_LOADED; 752 753 /* Load the physical device parameters. */ 754 wd_get_params(wd, AT_WAIT, &wd->sc_params); 755 756 /* Load the partition info if not already loaded. */ 757 wdgetdisklabel(wd); 758 } 759 } 760 761 part = WDPART(dev); 762 763 /* Check that the partition exists. */ 764 if (part != RAW_PART && 765 (part >= wd->sc_dk.dk_label->d_npartitions || 766 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 767 error = ENXIO; 768 goto bad; 769 } 770 771 /* Insure only one open at a time. */ 772 switch (fmt) { 773 case S_IFCHR: 774 wd->sc_dk.dk_copenmask |= (1 << part); 775 break; 776 case S_IFBLK: 777 wd->sc_dk.dk_bopenmask |= (1 << part); 778 break; 779 } 780 wd->sc_dk.dk_openmask = 781 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 782 783 wdunlock(wd); 784 return 0; 785 786 bad: 787 if (wd->sc_dk.dk_openmask == 0) { 788 } 789 790 bad3: 791 wdunlock(wd); 792 bad4: 793 if (wd->sc_dk.dk_openmask == 0) 794 wdc_ata_delref(wd->drvp); 795 return error; 796 } 797 798 int 799 wdclose(dev, flag, fmt, p) 800 dev_t dev; 801 int flag, fmt; 802 struct proc *p; 803 { 804 struct wd_softc *wd = wd_cd.cd_devs[WDUNIT(dev)]; 805 int part = WDPART(dev); 806 int error; 807 808 WDCDEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 809 if ((error = wdlock(wd)) != 0) 810 return error; 811 812 switch (fmt) { 813 case S_IFCHR: 814 wd->sc_dk.dk_copenmask &= ~(1 << part); 815 break; 816 case S_IFBLK: 817 wd->sc_dk.dk_bopenmask &= ~(1 << part); 818 break; 819 } 820 wd->sc_dk.dk_openmask = 821 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 822 823 if (wd->sc_dk.dk_openmask == 0) { 824 wd_flushcache(wd, AT_WAIT); 825 /* XXXX Must wait for I/O to complete! */ 826 827 if (! (wd->sc_flags & WDF_KLABEL)) 828 wd->sc_flags &= ~WDF_LOADED; 829 830 wdc_ata_delref(wd->drvp); 831 } 832 833 wdunlock(wd); 834 return 0; 835 } 836 837 void 838 wdgetdefaultlabel(wd, lp) 839 struct wd_softc *wd; 840 struct disklabel *lp; 841 { 842 843 WDCDEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 844 memset(lp, 0, sizeof(struct disklabel)); 845 846 lp->d_secsize = DEV_BSIZE; 847 lp->d_ntracks = wd->sc_params.atap_heads; 848 lp->d_nsectors = wd->sc_params.atap_sectors; 849 lp->d_ncylinders = wd->sc_params.atap_cylinders; 850 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 851 852 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 853 lp->d_type = DTYPE_ST506; 854 else 855 lp->d_type = DTYPE_ESDI; 856 857 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 858 strncpy(lp->d_packname, "fictitious", 16); 859 lp->d_secperunit = wd->sc_capacity; 860 lp->d_rpm = 3600; 861 lp->d_interleave = 1; 862 lp->d_flags = 0; 863 864 lp->d_partitions[RAW_PART].p_offset = 0; 865 lp->d_partitions[RAW_PART].p_size = 866 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 867 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 868 lp->d_npartitions = RAW_PART + 1; 869 870 lp->d_magic = DISKMAGIC; 871 lp->d_magic2 = DISKMAGIC; 872 lp->d_checksum = dkcksum(lp); 873 } 874 875 /* 876 * Fabricate a default disk label, and try to read the correct one. 877 */ 878 void 879 wdgetdisklabel(wd) 880 struct wd_softc *wd; 881 { 882 struct disklabel *lp = wd->sc_dk.dk_label; 883 char *errstring; 884 885 WDCDEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 886 887 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 888 889 wdgetdefaultlabel(wd, lp); 890 891 wd->sc_badsect[0] = -1; 892 893 if (wd->drvp->state > RECAL) 894 wd->drvp->drive_flags |= DRIVE_RESET; 895 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART), 896 wdstrategy, lp, wd->sc_dk.dk_cpulabel); 897 if (errstring) { 898 /* 899 * This probably happened because the drive's default 900 * geometry doesn't match the DOS geometry. We 901 * assume the DOS geometry is now in the label and try 902 * again. XXX This is a kluge. 903 */ 904 if (wd->drvp->state > RECAL) 905 wd->drvp->drive_flags |= DRIVE_RESET; 906 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, 907 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 908 } 909 if (errstring) { 910 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 911 return; 912 } 913 914 if (wd->drvp->state > RECAL) 915 wd->drvp->drive_flags |= DRIVE_RESET; 916 #ifdef HAS_BAD144_HANDLING 917 if ((lp->d_flags & D_BADSECT) != 0) 918 bad144intern(wd); 919 #endif 920 } 921 922 int 923 wdioctl(dev, xfer, addr, flag, p) 924 dev_t dev; 925 u_long xfer; 926 caddr_t addr; 927 int flag; 928 struct proc *p; 929 { 930 struct wd_softc *wd = wd_cd.cd_devs[WDUNIT(dev)]; 931 int error; 932 #ifdef __HAVE_OLD_DISKLABEL 933 struct disklabel newlabel; 934 #endif 935 936 WDCDEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 937 938 if ((wd->sc_flags & WDF_LOADED) == 0) 939 return EIO; 940 941 switch (xfer) { 942 #ifdef HAS_BAD144_HANDLING 943 case DIOCSBAD: 944 if ((flag & FWRITE) == 0) 945 return EBADF; 946 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 947 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 948 bad144intern(wd); 949 return 0; 950 #endif 951 952 case DIOCGDINFO: 953 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 954 return 0; 955 #ifdef __HAVE_OLD_DISKLABEL 956 case ODIOCGDINFO: 957 newlabel = *(wd->sc_dk.dk_label); 958 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 959 return ENOTTY; 960 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 961 return 0; 962 #endif 963 964 case DIOCGPART: 965 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 966 ((struct partinfo *)addr)->part = 967 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 968 return 0; 969 970 case DIOCWDINFO: 971 case DIOCSDINFO: 972 #ifdef __HAVE_OLD_DISKLABEL 973 case ODIOCWDINFO: 974 case ODIOCSDINFO: 975 #endif 976 { 977 struct disklabel *lp; 978 979 #ifdef __HAVE_OLD_DISKLABEL 980 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 981 memset(&newlabel, 0, sizeof newlabel); 982 memcpy(&newlabel, addr, sizeof (struct olddisklabel)); 983 lp = &newlabel; 984 } else 985 #endif 986 lp = (struct disklabel *)addr; 987 988 if ((flag & FWRITE) == 0) 989 return EBADF; 990 991 if ((error = wdlock(wd)) != 0) 992 return error; 993 wd->sc_flags |= WDF_LABELLING; 994 995 error = setdisklabel(wd->sc_dk.dk_label, 996 lp, /*wd->sc_dk.dk_openmask : */0, 997 wd->sc_dk.dk_cpulabel); 998 if (error == 0) { 999 if (wd->drvp->state > RECAL) 1000 wd->drvp->drive_flags |= DRIVE_RESET; 1001 if (xfer == DIOCWDINFO 1002 #ifdef __HAVE_OLD_DISKLABEL 1003 || xfer == ODIOCWDINFO 1004 #endif 1005 ) 1006 error = writedisklabel(WDLABELDEV(dev), 1007 wdstrategy, wd->sc_dk.dk_label, 1008 wd->sc_dk.dk_cpulabel); 1009 } 1010 1011 wd->sc_flags &= ~WDF_LABELLING; 1012 wdunlock(wd); 1013 return error; 1014 } 1015 1016 case DIOCKLABEL: 1017 if (*(int *)addr) 1018 wd->sc_flags |= WDF_KLABEL; 1019 else 1020 wd->sc_flags &= ~WDF_KLABEL; 1021 return 0; 1022 1023 case DIOCWLABEL: 1024 if ((flag & FWRITE) == 0) 1025 return EBADF; 1026 if (*(int *)addr) 1027 wd->sc_flags |= WDF_WLABEL; 1028 else 1029 wd->sc_flags &= ~WDF_WLABEL; 1030 return 0; 1031 1032 case DIOCGDEFLABEL: 1033 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1034 return 0; 1035 #ifdef __HAVE_OLD_DISKLABEL 1036 case ODIOCGDEFLABEL: 1037 wdgetdefaultlabel(wd, &newlabel); 1038 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 1039 return ENOTTY; 1040 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1041 return 0; 1042 #endif 1043 1044 #ifdef notyet 1045 case DIOCWFORMAT: 1046 if ((flag & FWRITE) == 0) 1047 return EBADF; 1048 { 1049 register struct format_op *fop; 1050 struct iovec aiov; 1051 struct uio auio; 1052 1053 fop = (struct format_op *)addr; 1054 aiov.iov_base = fop->df_buf; 1055 aiov.iov_len = fop->df_count; 1056 auio.uio_iov = &aiov; 1057 auio.uio_iovcnt = 1; 1058 auio.uio_resid = fop->df_count; 1059 auio.uio_segflg = 0; 1060 auio.uio_offset = 1061 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1062 auio.uio_procp = p; 1063 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1064 &auio); 1065 fop->df_count -= auio.uio_resid; 1066 fop->df_reg[0] = wdc->sc_status; 1067 fop->df_reg[1] = wdc->sc_error; 1068 return error; 1069 } 1070 #endif 1071 1072 case ATAIOCCOMMAND: 1073 /* 1074 * Make sure this command is (relatively) safe first 1075 */ 1076 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1077 (flag & FWRITE) == 0) 1078 return (EBADF); 1079 { 1080 struct wd_ioctl *wi; 1081 atareq_t *atareq = (atareq_t *) addr; 1082 int error; 1083 1084 wi = wi_get(); 1085 wi->wi_softc = wd; 1086 wi->wi_atareq = *atareq; 1087 1088 if (atareq->datalen && atareq->flags & 1089 (ATACMD_READ | ATACMD_WRITE)) { 1090 wi->wi_iov.iov_base = atareq->databuf; 1091 wi->wi_iov.iov_len = atareq->datalen; 1092 wi->wi_uio.uio_iov = &wi->wi_iov; 1093 wi->wi_uio.uio_iovcnt = 1; 1094 wi->wi_uio.uio_resid = atareq->datalen; 1095 wi->wi_uio.uio_offset = 0; 1096 wi->wi_uio.uio_segflg = UIO_USERSPACE; 1097 wi->wi_uio.uio_rw = 1098 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1099 wi->wi_uio.uio_procp = p; 1100 error = physio(wdioctlstrategy, &wi->wi_bp, dev, 1101 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1102 minphys, &wi->wi_uio); 1103 } else { 1104 /* No need to call physio if we don't have any 1105 user data */ 1106 wi->wi_bp.b_flags = 0; 1107 wi->wi_bp.b_data = 0; 1108 wi->wi_bp.b_bcount = 0; 1109 wi->wi_bp.b_dev = 0; 1110 wi->wi_bp.b_proc = p; 1111 wdioctlstrategy(&wi->wi_bp); 1112 error = wi->wi_bp.b_error; 1113 } 1114 *atareq = wi->wi_atareq; 1115 wi_free(wi); 1116 return(error); 1117 } 1118 1119 default: 1120 return ENOTTY; 1121 } 1122 1123 #ifdef DIAGNOSTIC 1124 panic("wdioctl: impossible"); 1125 #endif 1126 } 1127 1128 #ifdef B_FORMAT 1129 int 1130 wdformat(struct buf *bp) 1131 { 1132 1133 bp->b_flags |= B_FORMAT; 1134 return wdstrategy(bp); 1135 } 1136 #endif 1137 1138 int 1139 wdsize(dev) 1140 dev_t dev; 1141 { 1142 struct wd_softc *wd; 1143 int part, unit, omask; 1144 int size; 1145 1146 WDCDEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1147 1148 unit = WDUNIT(dev); 1149 if (unit >= wd_cd.cd_ndevs) 1150 return (-1); 1151 wd = wd_cd.cd_devs[unit]; 1152 if (wd == NULL) 1153 return (-1); 1154 1155 part = WDPART(dev); 1156 omask = wd->sc_dk.dk_openmask & (1 << part); 1157 1158 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1159 return (-1); 1160 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1161 size = -1; 1162 else 1163 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1164 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1165 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1166 return (-1); 1167 return (size); 1168 } 1169 1170 #ifndef __BDEVSW_DUMP_OLD_TYPE 1171 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1172 static int wddoingadump = 0; 1173 static int wddumprecalibrated = 0; 1174 static int wddumpmulti = 1; 1175 1176 /* 1177 * Dump core after a system crash. 1178 */ 1179 int 1180 wddump(dev, blkno, va, size) 1181 dev_t dev; 1182 daddr_t blkno; 1183 caddr_t va; 1184 size_t size; 1185 { 1186 struct wd_softc *wd; /* disk unit to do the I/O */ 1187 struct disklabel *lp; /* disk's disklabel */ 1188 int unit, part; 1189 int nblks; /* total number of sectors left to write */ 1190 int err; 1191 char errbuf[256]; 1192 1193 /* Check if recursive dump; if so, punt. */ 1194 if (wddoingadump) 1195 return EFAULT; 1196 wddoingadump = 1; 1197 1198 unit = WDUNIT(dev); 1199 if (unit >= wd_cd.cd_ndevs) 1200 return ENXIO; 1201 wd = wd_cd.cd_devs[unit]; 1202 if (wd == (struct wd_softc *)0) 1203 return ENXIO; 1204 1205 part = WDPART(dev); 1206 1207 /* Make sure it was initialized. */ 1208 if (wd->drvp->state < READY) 1209 return ENXIO; 1210 1211 /* Convert to disk sectors. Request must be a multiple of size. */ 1212 lp = wd->sc_dk.dk_label; 1213 if ((size % lp->d_secsize) != 0) 1214 return EFAULT; 1215 nblks = size / lp->d_secsize; 1216 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1217 1218 /* Check transfer bounds against partition size. */ 1219 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1220 return EINVAL; 1221 1222 /* Offset block number to start of partition. */ 1223 blkno += lp->d_partitions[part].p_offset; 1224 1225 /* Recalibrate, if first dump transfer. */ 1226 if (wddumprecalibrated == 0) { 1227 wddumpmulti = wd->sc_multi; 1228 wddumprecalibrated = 1; 1229 wd->drvp->state = RESET; 1230 } 1231 1232 while (nblks > 0) { 1233 again: 1234 wd->sc_wdc_bio.blkno = blkno; 1235 wd->sc_wdc_bio.flags = ATA_POLL; 1236 if (wddumpmulti == 1) 1237 wd->sc_wdc_bio.flags |= ATA_SINGLE; 1238 if (wd->sc_flags & WDF_LBA) 1239 wd->sc_wdc_bio.flags |= ATA_LBA; 1240 wd->sc_wdc_bio.bcount = 1241 min(nblks, wddumpmulti) * lp->d_secsize; 1242 wd->sc_wdc_bio.databuf = va; 1243 #ifndef WD_DUMP_NOT_TRUSTED 1244 switch (wdc_ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1245 case WDC_TRY_AGAIN: 1246 panic("wddump: try again"); 1247 break; 1248 case WDC_QUEUED: 1249 panic("wddump: polled command has been queued"); 1250 break; 1251 case WDC_COMPLETE: 1252 break; 1253 } 1254 switch(wd->sc_wdc_bio.error) { 1255 case TIMEOUT: 1256 printf("wddump: device timed out"); 1257 err = EIO; 1258 break; 1259 case ERR_DF: 1260 printf("wddump: drive fault"); 1261 err = EIO; 1262 break; 1263 case ERR_DMA: 1264 printf("wddump: DMA error"); 1265 err = EIO; 1266 break; 1267 case ERROR: 1268 errbuf[0] = '\0'; 1269 ata_perror(wd->drvp, wd->sc_wdc_bio.r_error, errbuf); 1270 printf("wddump: %s", errbuf); 1271 err = EIO; 1272 break; 1273 case NOERROR: 1274 err = 0; 1275 break; 1276 default: 1277 panic("wddump: unknown error type"); 1278 } 1279 if (err != 0) { 1280 if (wddumpmulti != 1) { 1281 wddumpmulti = 1; /* retry in single-sector */ 1282 printf(", retrying\n"); 1283 goto again; 1284 } 1285 printf("\n"); 1286 return err; 1287 } 1288 #else /* WD_DUMP_NOT_TRUSTED */ 1289 /* Let's just talk about this first... */ 1290 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1291 unit, va, cylin, head, sector); 1292 delay(500 * 1000); /* half a second */ 1293 #endif 1294 1295 /* update block count */ 1296 nblks -= min(nblks, wddumpmulti); 1297 blkno += min(nblks, wddumpmulti); 1298 va += min(nblks, wddumpmulti) * lp->d_secsize; 1299 } 1300 1301 wddoingadump = 0; 1302 return 0; 1303 } 1304 #else /* __BDEVSW_DUMP_NEW_TYPE */ 1305 1306 1307 int 1308 wddump(dev, blkno, va, size) 1309 dev_t dev; 1310 daddr_t blkno; 1311 caddr_t va; 1312 size_t size; 1313 { 1314 1315 /* Not implemented. */ 1316 return ENXIO; 1317 } 1318 #endif /* __BDEVSW_DUMP_NEW_TYPE */ 1319 1320 #ifdef HAS_BAD144_HANDLING 1321 /* 1322 * Internalize the bad sector table. 1323 */ 1324 void 1325 bad144intern(wd) 1326 struct wd_softc *wd; 1327 { 1328 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1329 struct disklabel *lp = wd->sc_dk.dk_label; 1330 int i = 0; 1331 1332 WDCDEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1333 1334 for (; i < NBT_BAD; i++) { 1335 if (bt->bt_bad[i].bt_cyl == 0xffff) 1336 break; 1337 wd->sc_badsect[i] = 1338 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1339 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1340 (bt->bt_bad[i].bt_trksec & 0xff); 1341 } 1342 for (; i < NBT_BAD+1; i++) 1343 wd->sc_badsect[i] = -1; 1344 } 1345 #endif 1346 1347 int 1348 wd_get_params(wd, flags, params) 1349 struct wd_softc *wd; 1350 u_int8_t flags; 1351 struct ataparams *params; 1352 { 1353 switch (ata_get_params(wd->drvp, flags, params)) { 1354 case CMD_AGAIN: 1355 return 1; 1356 case CMD_ERR: 1357 /* 1358 * We `know' there's a drive here; just assume it's old. 1359 * This geometry is only used to read the MBR and print a 1360 * (false) attach message. 1361 */ 1362 strncpy(params->atap_model, "ST506", 1363 sizeof params->atap_model); 1364 params->atap_config = ATA_CFG_FIXED; 1365 params->atap_cylinders = 1024; 1366 params->atap_heads = 8; 1367 params->atap_sectors = 17; 1368 params->atap_multi = 1; 1369 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1370 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1371 return 0; 1372 case CMD_OK: 1373 return 0; 1374 default: 1375 panic("wd_get_params: bad return code from ata_get_params"); 1376 /* NOTREACHED */ 1377 } 1378 } 1379 1380 void 1381 wd_flushcache(wd, flags) 1382 struct wd_softc *wd; 1383 int flags; 1384 { 1385 struct wdc_command wdc_c; 1386 1387 if (wd->drvp->ata_vers < 4) /* WDCC_FLUSHCACHE is here since ATA-4 */ 1388 return; 1389 memset(&wdc_c, 0, sizeof(struct wdc_command)); 1390 wdc_c.r_command = WDCC_FLUSHCACHE; 1391 wdc_c.r_st_bmask = WDCS_DRDY; 1392 wdc_c.r_st_pmask = WDCS_DRDY; 1393 wdc_c.flags = flags; 1394 wdc_c.timeout = 30000; /* 30s timeout */ 1395 if (wdc_exec_command(wd->drvp, &wdc_c) != WDC_COMPLETE) { 1396 printf("%s: flush cache command didn't complete\n", 1397 wd->sc_dev.dv_xname); 1398 } 1399 if (wdc_c.flags & AT_TIMEOU) { 1400 printf("%s: flush cache command timeout\n", 1401 wd->sc_dev.dv_xname); 1402 } 1403 if (wdc_c.flags & AT_DF) { 1404 printf("%s: flush cache command: drive fault\n", 1405 wd->sc_dev.dv_xname); 1406 } 1407 /* 1408 * Ignore error register, it shouldn't report anything else 1409 * than COMMAND ABORTED, which means the device doesn't support 1410 * flush cache 1411 */ 1412 } 1413 1414 void 1415 wd_shutdown(arg) 1416 void *arg; 1417 { 1418 struct wd_softc *wd = arg; 1419 wd_flushcache(wd, AT_POLL); 1420 } 1421 1422 /* 1423 * Allocate space for a ioctl queue structure. Mostly taken from 1424 * scsipi_ioctl.c 1425 */ 1426 struct wd_ioctl * 1427 wi_get() 1428 { 1429 struct wd_ioctl *wi; 1430 int s; 1431 1432 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK); 1433 memset(wi, 0, sizeof (struct wd_ioctl)); 1434 s = splbio(); 1435 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1436 splx(s); 1437 return (wi); 1438 } 1439 1440 /* 1441 * Free an ioctl structure and remove it from our list 1442 */ 1443 1444 void 1445 wi_free(wi) 1446 struct wd_ioctl *wi; 1447 { 1448 int s; 1449 1450 s = splbio(); 1451 LIST_REMOVE(wi, wi_list); 1452 splx(s); 1453 free(wi, M_TEMP); 1454 } 1455 1456 /* 1457 * Find a wd_ioctl structure based on the struct buf. 1458 */ 1459 1460 struct wd_ioctl * 1461 wi_find(bp) 1462 struct buf *bp; 1463 { 1464 struct wd_ioctl *wi; 1465 int s; 1466 1467 s = splbio(); 1468 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1469 if (bp == &wi->wi_bp) 1470 break; 1471 splx(s); 1472 return (wi); 1473 } 1474 1475 /* 1476 * Ioctl pseudo strategy routine 1477 * 1478 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1479 * happens here is: 1480 * 1481 * - wdioctl() queues a wd_ioctl structure. 1482 * 1483 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1484 * user space I/O is required. If physio() is called, physio() eventually 1485 * calls wdioctlstrategy(). 1486 * 1487 * - In either case, wdioctlstrategy() calls wdc_exec_command() 1488 * to perform the actual command 1489 * 1490 * The reason for the use of the pseudo strategy routine is because 1491 * when doing I/O to/from user space, physio _really_ wants to be in 1492 * the loop. We could put the entire buffer into the ioctl request 1493 * structure, but that won't scale if we want to do things like download 1494 * microcode. 1495 */ 1496 1497 void 1498 wdioctlstrategy(bp) 1499 struct buf *bp; 1500 { 1501 struct wd_ioctl *wi; 1502 struct wdc_command wdc_c; 1503 int error = 0; 1504 1505 wi = wi_find(bp); 1506 if (wi == NULL) { 1507 printf("user_strat: No ioctl\n"); 1508 error = EINVAL; 1509 goto bad; 1510 } 1511 1512 memset(&wdc_c, 0, sizeof(wdc_c)); 1513 1514 /* 1515 * Abort if physio broke up the transfer 1516 */ 1517 1518 if (bp->b_bcount != wi->wi_atareq.datalen) { 1519 printf("physio split wd ioctl request... cannot proceed\n"); 1520 error = EIO; 1521 goto bad; 1522 } 1523 1524 /* 1525 * Abort if we didn't get a buffer size that was a multiple of 1526 * our sector size (or was larger than NBBY) 1527 */ 1528 1529 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 1530 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 1531 (1 << NBBY)) { 1532 error = EINVAL; 1533 goto bad; 1534 } 1535 1536 /* 1537 * Make sure a timeout was supplied in the ioctl request 1538 */ 1539 1540 if (wi->wi_atareq.timeout == 0) { 1541 error = EINVAL; 1542 goto bad; 1543 } 1544 1545 if (wi->wi_atareq.flags & ATACMD_READ) 1546 wdc_c.flags |= AT_READ; 1547 else if (wi->wi_atareq.flags & ATACMD_WRITE) 1548 wdc_c.flags |= AT_WRITE; 1549 1550 if (wi->wi_atareq.flags & ATACMD_READREG) 1551 wdc_c.flags |= AT_READREG; 1552 1553 wdc_c.flags |= AT_WAIT; 1554 1555 wdc_c.timeout = wi->wi_atareq.timeout; 1556 wdc_c.r_command = wi->wi_atareq.command; 1557 wdc_c.r_head = wi->wi_atareq.head & 0x0f; 1558 wdc_c.r_cyl = wi->wi_atareq.cylinder; 1559 wdc_c.r_sector = wi->wi_atareq.sec_num; 1560 wdc_c.r_count = wi->wi_atareq.sec_count; 1561 wdc_c.r_precomp = wi->wi_atareq.features; 1562 wdc_c.r_st_bmask = WDCS_DRDY; 1563 wdc_c.r_st_pmask = WDCS_DRDY; 1564 wdc_c.data = wi->wi_bp.b_data; 1565 wdc_c.bcount = wi->wi_bp.b_bcount; 1566 1567 if (wdc_exec_command(wi->wi_softc->drvp, &wdc_c) != WDC_COMPLETE) { 1568 wi->wi_atareq.retsts = ATACMD_ERROR; 1569 goto bad; 1570 } 1571 1572 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1573 if (wdc_c.flags & AT_ERROR) { 1574 wi->wi_atareq.retsts = ATACMD_ERROR; 1575 wi->wi_atareq.error = wdc_c.r_error; 1576 } else if (wdc_c.flags & AT_DF) 1577 wi->wi_atareq.retsts = ATACMD_DF; 1578 else 1579 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 1580 } else { 1581 wi->wi_atareq.retsts = ATACMD_OK; 1582 if (wi->wi_atareq.flags & ATACMD_READREG) { 1583 wi->wi_atareq.head = wdc_c.r_head ; 1584 wi->wi_atareq.cylinder = wdc_c.r_cyl; 1585 wi->wi_atareq.sec_num = wdc_c.r_sector; 1586 wi->wi_atareq.sec_count = wdc_c.r_count; 1587 wi->wi_atareq.features = wdc_c.r_precomp; 1588 wi->wi_atareq.error = wdc_c.r_error; 1589 } 1590 } 1591 1592 bp->b_error = 0; 1593 biodone(bp); 1594 return; 1595 bad: 1596 bp->b_flags |= B_ERROR; 1597 bp->b_error = error; 1598 biodone(bp); 1599 } 1600
Indexes created Mon Oct 20 05:10:11 GMT 2025