1 /* $NetBSD: rd.c,v 1.32 1997/06/24 00:44:03 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997 Jason R. Thorpe. All rights reserved. 5 * Copyright (c) 1988 University of Utah. 6 * Copyright (c) 1982, 1990, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * the Systems Programming Group of the University of Utah Computer 11 * Science Department. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * from: Utah $Hdr: rd.c 1.44 92/12/26$ 42 * 43 * @(#)rd.c 8.2 (Berkeley) 5/19/94 44 */ 45 46 /* 47 * CS80/SS80 disk driver 48 */ 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/buf.h> 53 #include <sys/conf.h> 54 #include <sys/device.h> 55 #include <sys/disk.h> 56 #include <sys/disklabel.h> 57 #include <sys/fcntl.h> 58 #include <sys/ioctl.h> 59 #include <sys/proc.h> 60 #include <sys/stat.h> 61 62 #include <hp300/dev/hpibvar.h> 63 64 #include <hp300/dev/rdreg.h> 65 #include <hp300/dev/rdvar.h> 66 67 #include <vm/vm_param.h> 68 #include <vm/lock.h> 69 #include <vm/vm_prot.h> 70 #include <vm/pmap.h> 71 72 #include "opt_useleds.h" 73 74 #ifdef USELEDS 75 #include <hp300/hp300/leds.h> 76 #endif 77 78 int rderrthresh = RDRETRY-1; /* when to start reporting errors */ 79 80 #ifdef DEBUG 81 /* error message tables */ 82 char *err_reject[] = { 83 0, 0, 84 "channel parity error", /* 0x2000 */ 85 0, 0, 86 "illegal opcode", /* 0x0400 */ 87 "module addressing", /* 0x0200 */ 88 "address bounds", /* 0x0100 */ 89 "parameter bounds", /* 0x0080 */ 90 "illegal parameter", /* 0x0040 */ 91 "message sequence", /* 0x0020 */ 92 0, 93 "message length", /* 0x0008 */ 94 0, 0, 0 95 }; 96 97 char *err_fault[] = { 98 0, 99 "cross unit", /* 0x4000 */ 100 0, 101 "controller fault", /* 0x1000 */ 102 0, 0, 103 "unit fault", /* 0x0200 */ 104 0, 105 "diagnostic result", /* 0x0080 */ 106 0, 107 "operator release request", /* 0x0020 */ 108 "diagnostic release request", /* 0x0010 */ 109 "internal maintenance release request", /* 0x0008 */ 110 0, 111 "power fail", /* 0x0002 */ 112 "retransmit" /* 0x0001 */ 113 }; 114 115 char *err_access[] = { 116 "illegal parallel operation", /* 0x8000 */ 117 "uninitialized media", /* 0x4000 */ 118 "no spares available", /* 0x2000 */ 119 "not ready", /* 0x1000 */ 120 "write protect", /* 0x0800 */ 121 "no data found", /* 0x0400 */ 122 0, 0, 123 "unrecoverable data overflow", /* 0x0080 */ 124 "unrecoverable data", /* 0x0040 */ 125 0, 126 "end of file", /* 0x0010 */ 127 "end of volume", /* 0x0008 */ 128 0, 0, 0 129 }; 130 131 char *err_info[] = { 132 "operator release request", /* 0x8000 */ 133 "diagnostic release request", /* 0x4000 */ 134 "internal maintenance release request", /* 0x2000 */ 135 "media wear", /* 0x1000 */ 136 "latency induced", /* 0x0800 */ 137 0, 0, 138 "auto sparing invoked", /* 0x0100 */ 139 0, 140 "recoverable data overflow", /* 0x0040 */ 141 "marginal data", /* 0x0020 */ 142 "recoverable data", /* 0x0010 */ 143 0, 144 "maintenance track overflow", /* 0x0004 */ 145 0, 0 146 }; 147 148 int rddebug = 0x80; 149 #define RDB_FOLLOW 0x01 150 #define RDB_STATUS 0x02 151 #define RDB_IDENT 0x04 152 #define RDB_IO 0x08 153 #define RDB_ASYNC 0x10 154 #define RDB_ERROR 0x80 155 #endif 156 157 /* 158 * Misc. HW description, indexed by sc_type. 159 * Nothing really critical here, could do without it. 160 */ 161 struct rdidentinfo rdidentinfo[] = { 162 { RD7946AID, 0, "7945A", NRD7945ABPT, 163 NRD7945ATRK, 968, 108416 }, 164 165 { RD9134DID, 1, "9134D", NRD9134DBPT, 166 NRD9134DTRK, 303, 29088 }, 167 168 { RD9134LID, 1, "9122S", NRD9122SBPT, 169 NRD9122STRK, 77, 1232 }, 170 171 { RD7912PID, 0, "7912P", NRD7912PBPT, 172 NRD7912PTRK, 572, 128128 }, 173 174 { RD7914PID, 0, "7914P", NRD7914PBPT, 175 NRD7914PTRK, 1152, 258048 }, 176 177 { RD7958AID, 0, "7958A", NRD7958ABPT, 178 NRD7958ATRK, 1013, 255276 }, 179 180 { RD7957AID, 0, "7957A", NRD7957ABPT, 181 NRD7957ATRK, 1036, 159544 }, 182 183 { RD7933HID, 0, "7933H", NRD7933HBPT, 184 NRD7933HTRK, 1321, 789958 }, 185 186 { RD9134LID, 1, "9134L", NRD9134LBPT, 187 NRD9134LTRK, 973, 77840 }, 188 189 { RD7936HID, 0, "7936H", NRD7936HBPT, 190 NRD7936HTRK, 698, 600978 }, 191 192 { RD7937HID, 0, "7937H", NRD7937HBPT, 193 NRD7937HTRK, 698, 1116102 }, 194 195 { RD7914CTID, 0, "7914CT", NRD7914PBPT, 196 NRD7914PTRK, 1152, 258048 }, 197 198 { RD7946AID, 0, "7946A", NRD7945ABPT, 199 NRD7945ATRK, 968, 108416 }, 200 201 { RD9134LID, 1, "9122D", NRD9122SBPT, 202 NRD9122STRK, 77, 1232 }, 203 204 { RD7957BID, 0, "7957B", NRD7957BBPT, 205 NRD7957BTRK, 1269, 159894 }, 206 207 { RD7958BID, 0, "7958B", NRD7958BBPT, 208 NRD7958BTRK, 786, 297108 }, 209 210 { RD7959BID, 0, "7959B", NRD7959BBPT, 211 NRD7959BTRK, 1572, 594216 }, 212 213 { RD2200AID, 0, "2200A", NRD2200ABPT, 214 NRD2200ATRK, 1449, 654948 }, 215 216 { RD2203AID, 0, "2203A", NRD2203ABPT, 217 NRD2203ATRK, 1449, 1309896 } 218 }; 219 int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]); 220 221 bdev_decl(rd); 222 cdev_decl(rd); 223 224 int rdident __P((struct device *, struct rd_softc *, 225 struct hpibbus_attach_args *)); 226 void rdreset __P((struct rd_softc *)); 227 void rdustart __P((struct rd_softc *)); 228 int rdgetinfo __P((dev_t)); 229 void rdrestart __P((void *)); 230 struct buf *rdfinish __P((struct rd_softc *, struct buf *)); 231 232 void rdrestart __P((void *)); 233 void rdustart __P((struct rd_softc *)); 234 struct buf *rdfinish __P((struct rd_softc *, struct buf *)); 235 void rdstart __P((void *)); 236 void rdgo __P((void *)); 237 void rdintr __P((void *)); 238 int rdstatus __P((struct rd_softc *)); 239 int rderror __P((int)); 240 #ifdef DEBUG 241 void rdprinterr __P((char *, short, char **)); 242 #endif 243 244 int rdmatch __P((struct device *, struct cfdata *, void *)); 245 void rdattach __P((struct device *, struct device *, void *)); 246 247 struct cfattach rd_ca = { 248 sizeof(struct rd_softc), rdmatch, rdattach 249 }; 250 251 struct cfdriver rd_cd = { 252 NULL, "rd", DV_DISK 253 }; 254 255 int 256 rdmatch(parent, match, aux) 257 struct device *parent; 258 struct cfdata *match; 259 void *aux; 260 { 261 struct hpibbus_attach_args *ha = aux; 262 263 /* 264 * Set punit if operator specified one in the kernel 265 * configuration file. 266 */ 267 if (match->hpibbuscf_punit != HPIBBUS_PUNIT_UNK && 268 match->hpibbuscf_punit < HPIB_NPUNITS) 269 ha->ha_punit = match->hpibbuscf_punit; 270 271 if (rdident(parent, NULL, ha) == 0) { 272 /* 273 * XXX Some aging HP-IB drives are slow to 274 * XXX respond; give them a chance to catch 275 * XXX up and probe them again. 276 */ 277 delay(10000); 278 ha->ha_id = hpibid(parent->dv_unit, ha->ha_slave); 279 return (rdident(parent, NULL, ha)); 280 } 281 return (1); 282 } 283 284 void 285 rdattach(parent, self, aux) 286 struct device *parent, *self; 287 void *aux; 288 { 289 struct rd_softc *sc = (struct rd_softc *)self; 290 struct hpibbus_attach_args *ha = aux; 291 292 if (rdident(parent, sc, ha) == 0) { 293 printf("\n%s: didn't respond to describe command!\n", 294 sc->sc_dev.dv_xname); 295 return; 296 } 297 298 /* 299 * Initialize and attach the disk structure. 300 */ 301 bzero(&sc->sc_dkdev, sizeof(sc->sc_dkdev)); 302 sc->sc_dkdev.dk_name = sc->sc_dev.dv_xname; 303 disk_attach(&sc->sc_dkdev); 304 305 sc->sc_slave = ha->ha_slave; 306 sc->sc_punit = ha->ha_punit; 307 308 /* Initialize the hpib job queue entry */ 309 sc->sc_hq.hq_softc = sc; 310 sc->sc_hq.hq_slave = sc->sc_slave; 311 sc->sc_hq.hq_start = rdstart; 312 sc->sc_hq.hq_go = rdgo; 313 sc->sc_hq.hq_intr = rdintr; 314 315 sc->sc_flags = RDF_ALIVE; 316 #ifdef DEBUG 317 /* always report errors */ 318 if (rddebug & RDB_ERROR) 319 rderrthresh = 0; 320 #endif 321 } 322 323 int 324 rdident(parent, sc, ha) 325 struct device *parent; 326 struct rd_softc *sc; 327 struct hpibbus_attach_args *ha; 328 { 329 struct rd_describe *desc = sc != NULL ? &sc->sc_rddesc : NULL; 330 u_char stat, cmd[3]; 331 char name[7]; 332 int i, id, n, ctlr, slave; 333 334 ctlr = parent->dv_unit; 335 slave = ha->ha_slave; 336 337 /* Verify that we have a CS80 device. */ 338 if ((ha->ha_id & 0x200) == 0) 339 return (0); 340 341 /* Is it one of the disks we support? */ 342 for (id = 0; id < numrdidentinfo; id++) 343 if (ha->ha_id == rdidentinfo[id].ri_hwid) 344 break; 345 if (id == numrdidentinfo || ha->ha_punit > rdidentinfo[id].ri_maxunum) 346 return (0); 347 348 /* 349 * If we're just probing for the device, that's all the 350 * work we need to do. 351 */ 352 if (sc == NULL) 353 return (1); 354 355 /* 356 * Reset device and collect description 357 */ 358 rdreset(sc); 359 cmd[0] = C_SUNIT(ha->ha_punit); 360 cmd[1] = C_SVOL(0); 361 cmd[2] = C_DESC; 362 hpibsend(ctlr, slave, C_CMD, cmd, sizeof(cmd)); 363 hpibrecv(ctlr, slave, C_EXEC, desc, 37); 364 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 365 bzero(name, sizeof(name)); 366 if (stat == 0) { 367 n = desc->d_name; 368 for (i = 5; i >= 0; i--) { 369 name[i] = (n & 0xf) + '0'; 370 n >>= 4; 371 } 372 } 373 374 #ifdef DEBUG 375 if (rddebug & RDB_IDENT) { 376 printf("\n%s: name: %x ('%s')\n", 377 sc->sc_dev.dv_xname, desc->d_name, name); 378 printf(" iuw %x, maxxfr %d, ctype %d\n", 379 desc->d_iuw, desc->d_cmaxxfr, desc->d_ctype); 380 printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n", 381 desc->d_utype, desc->d_sectsize, 382 desc->d_blkbuf, desc->d_burstsize, desc->d_blocktime); 383 printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n", 384 desc->d_uavexfr, desc->d_retry, desc->d_access, 385 desc->d_maxint, desc->d_fvbyte, desc->d_rvbyte); 386 printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n", 387 desc->d_maxcyl, desc->d_maxhead, desc->d_maxsect, 388 desc->d_maxvsectl, desc->d_interleave); 389 printf("%s", sc->sc_dev.dv_xname); 390 } 391 #endif 392 393 /* 394 * Take care of a couple of anomolies: 395 * 1. 7945A and 7946A both return same HW id 396 * 2. 9122S and 9134D both return same HW id 397 * 3. 9122D and 9134L both return same HW id 398 */ 399 switch (ha->ha_id) { 400 case RD7946AID: 401 if (bcmp(name, "079450", 6) == 0) 402 id = RD7945A; 403 else 404 id = RD7946A; 405 break; 406 407 case RD9134LID: 408 if (bcmp(name, "091340", 6) == 0) 409 id = RD9134L; 410 else 411 id = RD9122D; 412 break; 413 414 case RD9134DID: 415 if (bcmp(name, "091220", 6) == 0) 416 id = RD9122S; 417 else 418 id = RD9134D; 419 break; 420 } 421 422 sc->sc_type = id; 423 424 /* 425 * XXX We use DEV_BSIZE instead of the sector size value pulled 426 * XXX off the driver because all of this code assumes 512 byte 427 * XXX blocks. ICK! 428 */ 429 printf(": %s\n", rdidentinfo[id].ri_desc); 430 printf("%s: %d cylinders, %d heads, %d blocks, %d bytes/block\n", 431 sc->sc_dev.dv_xname, rdidentinfo[id].ri_ncyl, 432 rdidentinfo[id].ri_ntpc, rdidentinfo[id].ri_nblocks, 433 DEV_BSIZE); 434 435 return (1); 436 } 437 438 void 439 rdreset(rs) 440 struct rd_softc *rs; 441 { 442 int ctlr = rs->sc_dev.dv_parent->dv_unit; 443 int slave = rs->sc_slave; 444 u_char stat; 445 446 rs->sc_clear.c_unit = C_SUNIT(rs->sc_punit); 447 rs->sc_clear.c_cmd = C_CLEAR; 448 hpibsend(ctlr, slave, C_TCMD, &rs->sc_clear, sizeof(rs->sc_clear)); 449 hpibswait(ctlr, slave); 450 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 451 452 rs->sc_src.c_unit = C_SUNIT(RDCTLR); 453 rs->sc_src.c_nop = C_NOP; 454 rs->sc_src.c_cmd = C_SREL; 455 rs->sc_src.c_param = C_REL; 456 hpibsend(ctlr, slave, C_CMD, &rs->sc_src, sizeof(rs->sc_src)); 457 hpibswait(ctlr, slave); 458 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 459 460 rs->sc_ssmc.c_unit = C_SUNIT(rs->sc_punit); 461 rs->sc_ssmc.c_cmd = C_SSM; 462 rs->sc_ssmc.c_refm = REF_MASK; 463 rs->sc_ssmc.c_fefm = FEF_MASK; 464 rs->sc_ssmc.c_aefm = AEF_MASK; 465 rs->sc_ssmc.c_iefm = IEF_MASK; 466 hpibsend(ctlr, slave, C_CMD, &rs->sc_ssmc, sizeof(rs->sc_ssmc)); 467 hpibswait(ctlr, slave); 468 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 469 #ifdef DEBUG 470 rs->sc_stats.rdresets++; 471 #endif 472 } 473 474 /* 475 * Read or constuct a disklabel 476 */ 477 int 478 rdgetinfo(dev) 479 dev_t dev; 480 { 481 int unit = rdunit(dev); 482 struct rd_softc *rs = rd_cd.cd_devs[unit]; 483 struct disklabel *lp = rs->sc_dkdev.dk_label; 484 struct partition *pi; 485 char *msg; 486 487 /* 488 * Set some default values to use while reading the label 489 * or to use if there isn't a label. 490 */ 491 bzero((caddr_t)lp, sizeof *lp); 492 lp->d_type = DTYPE_HPIB; 493 lp->d_secsize = DEV_BSIZE; 494 lp->d_nsectors = 32; 495 lp->d_ntracks = 20; 496 lp->d_ncylinders = 1; 497 lp->d_secpercyl = 32*20; 498 lp->d_npartitions = 3; 499 lp->d_partitions[2].p_offset = 0; 500 lp->d_partitions[2].p_size = LABELSECTOR+1; 501 502 /* 503 * Now try to read the disklabel 504 */ 505 msg = readdisklabel(rdlabdev(dev), rdstrategy, lp, NULL); 506 if (msg == NULL) 507 return (0); 508 509 pi = lp->d_partitions; 510 printf("%s: WARNING: %s, ", rs->sc_dev.dv_xname, msg); 511 #ifdef COMPAT_NOLABEL 512 printf("using old default partitioning\n"); 513 rdmakedisklabel(unit, lp); 514 #else 515 printf("defining `c' partition as entire disk\n"); 516 pi[2].p_size = rdidentinfo[rs->sc_type].ri_nblocks; 517 /* XXX reset other info since readdisklabel screws with it */ 518 lp->d_npartitions = 3; 519 pi[0].p_size = 0; 520 #endif 521 return(0); 522 } 523 524 int 525 rdopen(dev, flags, mode, p) 526 dev_t dev; 527 int flags, mode; 528 struct proc *p; 529 { 530 int unit = rdunit(dev); 531 struct rd_softc *rs; 532 int error, mask, part; 533 534 if (unit >= rd_cd.cd_ndevs || 535 (rs = rd_cd.cd_devs[unit]) == NULL || 536 (rs->sc_flags & RDF_ALIVE) == 0) 537 return (ENXIO); 538 539 /* 540 * Wait for any pending opens/closes to complete 541 */ 542 while (rs->sc_flags & (RDF_OPENING|RDF_CLOSING)) 543 sleep((caddr_t)rs, PRIBIO); 544 545 /* 546 * On first open, get label and partition info. 547 * We may block reading the label, so be careful 548 * to stop any other opens. 549 */ 550 if (rs->sc_dkdev.dk_openmask == 0) { 551 rs->sc_flags |= RDF_OPENING; 552 error = rdgetinfo(dev); 553 rs->sc_flags &= ~RDF_OPENING; 554 wakeup((caddr_t)rs); 555 if (error) 556 return(error); 557 } 558 559 part = rdpart(dev); 560 mask = 1 << part; 561 562 /* Check that the partition exists. */ 563 if (part != RAW_PART && 564 (part > rs->sc_dkdev.dk_label->d_npartitions || 565 rs->sc_dkdev.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) 566 return (ENXIO); 567 568 /* Ensure only one open at a time. */ 569 switch (mode) { 570 case S_IFCHR: 571 rs->sc_dkdev.dk_copenmask |= mask; 572 break; 573 case S_IFBLK: 574 rs->sc_dkdev.dk_bopenmask |= mask; 575 break; 576 } 577 rs->sc_dkdev.dk_openmask = 578 rs->sc_dkdev.dk_copenmask | rs->sc_dkdev.dk_bopenmask; 579 580 return(0); 581 } 582 583 int 584 rdclose(dev, flag, mode, p) 585 dev_t dev; 586 int flag, mode; 587 struct proc *p; 588 { 589 int unit = rdunit(dev); 590 struct rd_softc *rs = rd_cd.cd_devs[unit]; 591 struct disk *dk = &rs->sc_dkdev; 592 int mask, s; 593 594 mask = 1 << rdpart(dev); 595 if (mode == S_IFCHR) 596 dk->dk_copenmask &= ~mask; 597 else 598 dk->dk_bopenmask &= ~mask; 599 dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; 600 /* 601 * On last close, we wait for all activity to cease since 602 * the label/parition info will become invalid. Since we 603 * might sleep, we must block any opens while we are here. 604 * Note we don't have to about other closes since we know 605 * we are the last one. 606 */ 607 if (dk->dk_openmask == 0) { 608 rs->sc_flags |= RDF_CLOSING; 609 s = splbio(); 610 while (rs->sc_tab.b_active) { 611 rs->sc_flags |= RDF_WANTED; 612 sleep((caddr_t)&rs->sc_tab, PRIBIO); 613 } 614 splx(s); 615 rs->sc_flags &= ~(RDF_CLOSING|RDF_WLABEL); 616 wakeup((caddr_t)rs); 617 } 618 return(0); 619 } 620 621 void 622 rdstrategy(bp) 623 struct buf *bp; 624 { 625 int unit = rdunit(bp->b_dev); 626 struct rd_softc *rs = rd_cd.cd_devs[unit]; 627 struct buf *dp = &rs->sc_tab; 628 struct partition *pinfo; 629 daddr_t bn; 630 int sz, s; 631 int offset; 632 633 #ifdef DEBUG 634 if (rddebug & RDB_FOLLOW) 635 printf("rdstrategy(%p): dev %x, bn %x, bcount %lx, %c\n", 636 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 637 (bp->b_flags & B_READ) ? 'R' : 'W'); 638 #endif 639 bn = bp->b_blkno; 640 sz = howmany(bp->b_bcount, DEV_BSIZE); 641 pinfo = &rs->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)]; 642 643 /* Don't perform partition translation on RAW_PART. */ 644 offset = (rdpart(bp->b_dev) == RAW_PART) ? 0 : pinfo->p_offset; 645 646 if (rdpart(bp->b_dev) != RAW_PART) { 647 /* 648 * XXX This block of code belongs in 649 * XXX bounds_check_with_label() 650 */ 651 652 if (bn < 0 || bn + sz > pinfo->p_size) { 653 sz = pinfo->p_size - bn; 654 if (sz == 0) { 655 bp->b_resid = bp->b_bcount; 656 goto done; 657 } 658 if (sz < 0) { 659 bp->b_error = EINVAL; 660 goto bad; 661 } 662 bp->b_bcount = dbtob(sz); 663 } 664 /* 665 * Check for write to write protected label 666 */ 667 if (bn + offset <= LABELSECTOR && 668 #if LABELSECTOR != 0 669 bn + offset + sz > LABELSECTOR && 670 #endif 671 !(bp->b_flags & B_READ) && !(rs->sc_flags & RDF_WLABEL)) { 672 bp->b_error = EROFS; 673 goto bad; 674 } 675 } 676 bp->b_cylin = bn + offset; 677 s = splbio(); 678 disksort(dp, bp); 679 if (dp->b_active == 0) { 680 dp->b_active = 1; 681 rdustart(rs); 682 } 683 splx(s); 684 return; 685 bad: 686 bp->b_flags |= B_ERROR; 687 done: 688 biodone(bp); 689 } 690 691 /* 692 * Called from timeout() when handling maintenance releases 693 */ 694 void 695 rdrestart(arg) 696 void *arg; 697 { 698 int s = splbio(); 699 rdustart((struct rd_softc *)arg); 700 splx(s); 701 } 702 703 void 704 rdustart(rs) 705 struct rd_softc *rs; 706 { 707 struct buf *bp; 708 709 bp = rs->sc_tab.b_actf; 710 rs->sc_addr = bp->b_un.b_addr; 711 rs->sc_resid = bp->b_bcount; 712 if (hpibreq(rs->sc_dev.dv_parent, &rs->sc_hq)) 713 rdstart(rs); 714 } 715 716 struct buf * 717 rdfinish(rs, bp) 718 struct rd_softc *rs; 719 struct buf *bp; 720 { 721 struct buf *dp = &rs->sc_tab; 722 723 dp->b_errcnt = 0; 724 dp->b_actf = bp->b_actf; 725 bp->b_resid = 0; 726 biodone(bp); 727 hpibfree(rs->sc_dev.dv_parent, &rs->sc_hq); 728 if (dp->b_actf) 729 return (dp->b_actf); 730 dp->b_active = 0; 731 if (rs->sc_flags & RDF_WANTED) { 732 rs->sc_flags &= ~RDF_WANTED; 733 wakeup((caddr_t)dp); 734 } 735 return (NULL); 736 } 737 738 void 739 rdstart(arg) 740 void *arg; 741 { 742 struct rd_softc *rs = arg; 743 struct buf *bp = rs->sc_tab.b_actf; 744 int part, ctlr, slave; 745 746 ctlr = rs->sc_dev.dv_parent->dv_unit; 747 slave = rs->sc_slave; 748 749 again: 750 #ifdef DEBUG 751 if (rddebug & RDB_FOLLOW) 752 printf("rdstart(%s): bp %p, %c\n", rs->sc_dev.dv_xname, bp, 753 (bp->b_flags & B_READ) ? 'R' : 'W'); 754 #endif 755 part = rdpart(bp->b_dev); 756 rs->sc_flags |= RDF_SEEK; 757 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 758 rs->sc_ioc.c_volume = C_SVOL(0); 759 rs->sc_ioc.c_saddr = C_SADDR; 760 rs->sc_ioc.c_hiaddr = 0; 761 rs->sc_ioc.c_addr = RDBTOS(bp->b_cylin); 762 rs->sc_ioc.c_nop2 = C_NOP; 763 rs->sc_ioc.c_slen = C_SLEN; 764 rs->sc_ioc.c_len = rs->sc_resid; 765 rs->sc_ioc.c_cmd = bp->b_flags & B_READ ? C_READ : C_WRITE; 766 #ifdef DEBUG 767 if (rddebug & RDB_IO) 768 printf("rdstart: hpibsend(%x, %x, %x, %p, %x)\n", 769 ctlr, slave, C_CMD, 770 &rs->sc_ioc.c_unit, sizeof(rs->sc_ioc)-2); 771 #endif 772 if (hpibsend(ctlr, slave, C_CMD, &rs->sc_ioc.c_unit, 773 sizeof(rs->sc_ioc)-2) == sizeof(rs->sc_ioc)-2) { 774 775 /* Instrumentation. */ 776 disk_busy(&rs->sc_dkdev); 777 rs->sc_dkdev.dk_seek++; 778 779 #ifdef DEBUG 780 if (rddebug & RDB_IO) 781 printf("rdstart: hpibawait(%x)\n", ctlr); 782 #endif 783 hpibawait(ctlr); 784 return; 785 } 786 /* 787 * Experience has shown that the hpibwait in this hpibsend will 788 * occasionally timeout. It appears to occur mostly on old 7914 789 * drives with full maintenance tracks. We should probably 790 * integrate this with the backoff code in rderror. 791 */ 792 #ifdef DEBUG 793 if (rddebug & RDB_ERROR) 794 printf("%s: rdstart: cmd %x adr %lx blk %d len %d ecnt %ld\n", 795 rs->sc_dev.dv_xname, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 796 bp->b_blkno, rs->sc_resid, rs->sc_tab.b_errcnt); 797 rs->sc_stats.rdretries++; 798 #endif 799 rs->sc_flags &= ~RDF_SEEK; 800 rdreset(rs); 801 if (rs->sc_tab.b_errcnt++ < RDRETRY) 802 goto again; 803 printf("%s: rdstart err: cmd 0x%x sect %ld blk %d len %d\n", 804 rs->sc_dev.dv_xname, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 805 bp->b_blkno, rs->sc_resid); 806 bp->b_flags |= B_ERROR; 807 bp->b_error = EIO; 808 bp = rdfinish(rs, bp); 809 if (bp) { 810 rs->sc_addr = bp->b_un.b_addr; 811 rs->sc_resid = bp->b_bcount; 812 if (hpibreq(rs->sc_dev.dv_parent, &rs->sc_hq)) 813 goto again; 814 } 815 } 816 817 void 818 rdgo(arg) 819 void *arg; 820 { 821 struct rd_softc *rs = arg; 822 struct buf *bp = rs->sc_tab.b_actf; 823 int rw, ctlr, slave; 824 825 ctlr = rs->sc_dev.dv_parent->dv_unit; 826 slave = rs->sc_slave; 827 828 rw = bp->b_flags & B_READ; 829 830 /* Instrumentation. */ 831 disk_busy(&rs->sc_dkdev); 832 833 #ifdef USELEDS 834 ledcontrol(0, 0, LED_DISK); 835 #endif 836 hpibgo(ctlr, slave, C_EXEC, rs->sc_addr, rs->sc_resid, rw, rw != 0); 837 } 838 839 /* ARGSUSED */ 840 void 841 rdintr(arg) 842 void *arg; 843 { 844 struct rd_softc *rs = arg; 845 int unit = rs->sc_dev.dv_unit; 846 struct buf *bp = rs->sc_tab.b_actf; 847 u_char stat = 13; /* in case hpibrecv fails */ 848 int rv, restart, ctlr, slave; 849 850 ctlr = rs->sc_dev.dv_parent->dv_unit; 851 slave = rs->sc_slave; 852 853 #ifdef DEBUG 854 if (rddebug & RDB_FOLLOW) 855 printf("rdintr(%d): bp %p, %c, flags %x\n", unit, bp, 856 (bp->b_flags & B_READ) ? 'R' : 'W', rs->sc_flags); 857 if (bp == NULL) { 858 printf("%s: bp == NULL\n", rs->sc_dev.dv_xname); 859 return; 860 } 861 #endif 862 disk_unbusy(&rs->sc_dkdev, (bp->b_bcount - bp->b_resid)); 863 864 if (rs->sc_flags & RDF_SEEK) { 865 rs->sc_flags &= ~RDF_SEEK; 866 if (hpibustart(ctlr)) 867 rdgo(rs); 868 return; 869 } 870 if ((rs->sc_flags & RDF_SWAIT) == 0) { 871 #ifdef DEBUG 872 rs->sc_stats.rdpolltries++; 873 #endif 874 if (hpibpptest(ctlr, slave) == 0) { 875 #ifdef DEBUG 876 rs->sc_stats.rdpollwaits++; 877 #endif 878 879 /* Instrumentation. */ 880 disk_busy(&rs->sc_dkdev); 881 rs->sc_flags |= RDF_SWAIT; 882 hpibawait(ctlr); 883 return; 884 } 885 } else 886 rs->sc_flags &= ~RDF_SWAIT; 887 rv = hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 888 if (rv != 1 || stat) { 889 #ifdef DEBUG 890 if (rddebug & RDB_ERROR) 891 printf("rdintr: recv failed or bad stat %d\n", stat); 892 #endif 893 restart = rderror(unit); 894 #ifdef DEBUG 895 rs->sc_stats.rdretries++; 896 #endif 897 if (rs->sc_tab.b_errcnt++ < RDRETRY) { 898 if (restart) 899 rdstart(rs); 900 return; 901 } 902 bp->b_flags |= B_ERROR; 903 bp->b_error = EIO; 904 } 905 if (rdfinish(rs, bp)) 906 rdustart(rs); 907 } 908 909 int 910 rdstatus(rs) 911 struct rd_softc *rs; 912 { 913 int c, s; 914 u_char stat; 915 int rv; 916 917 c = rs->sc_dev.dv_parent->dv_unit; 918 s = rs->sc_slave; 919 rs->sc_rsc.c_unit = C_SUNIT(rs->sc_punit); 920 rs->sc_rsc.c_sram = C_SRAM; 921 rs->sc_rsc.c_ram = C_RAM; 922 rs->sc_rsc.c_cmd = C_STATUS; 923 bzero((caddr_t)&rs->sc_stat, sizeof(rs->sc_stat)); 924 rv = hpibsend(c, s, C_CMD, &rs->sc_rsc, sizeof(rs->sc_rsc)); 925 if (rv != sizeof(rs->sc_rsc)) { 926 #ifdef DEBUG 927 if (rddebug & RDB_STATUS) 928 printf("rdstatus: send C_CMD failed %d != %d\n", 929 rv, sizeof(rs->sc_rsc)); 930 #endif 931 return(1); 932 } 933 rv = hpibrecv(c, s, C_EXEC, &rs->sc_stat, sizeof(rs->sc_stat)); 934 if (rv != sizeof(rs->sc_stat)) { 935 #ifdef DEBUG 936 if (rddebug & RDB_STATUS) 937 printf("rdstatus: send C_EXEC failed %d != %d\n", 938 rv, sizeof(rs->sc_stat)); 939 #endif 940 return(1); 941 } 942 rv = hpibrecv(c, s, C_QSTAT, &stat, 1); 943 if (rv != 1 || stat) { 944 #ifdef DEBUG 945 if (rddebug & RDB_STATUS) 946 printf("rdstatus: recv failed %d or bad stat %d\n", 947 rv, stat); 948 #endif 949 return(1); 950 } 951 return(0); 952 } 953 954 /* 955 * Deal with errors. 956 * Returns 1 if request should be restarted, 957 * 0 if we should just quietly give up. 958 */ 959 int 960 rderror(unit) 961 int unit; 962 { 963 struct rd_softc *rs = rd_cd.cd_devs[unit]; 964 struct rd_stat *sp; 965 struct buf *bp; 966 daddr_t hwbn, pbn; 967 char *hexstr __P((int, int)); /* XXX */ 968 969 if (rdstatus(rs)) { 970 #ifdef DEBUG 971 printf("%s: couldn't get status\n", rs->sc_dev.dv_xname); 972 #endif 973 rdreset(rs); 974 return(1); 975 } 976 sp = &rs->sc_stat; 977 if (sp->c_fef & FEF_REXMT) 978 return(1); 979 if (sp->c_fef & FEF_PF) { 980 rdreset(rs); 981 return(1); 982 } 983 /* 984 * Unit requests release for internal maintenance. 985 * We just delay awhile and try again later. Use expontially 986 * increasing backoff ala ethernet drivers since we don't really 987 * know how long the maintenance will take. With RDWAITC and 988 * RDRETRY as defined, the range is 1 to 32 seconds. 989 */ 990 if (sp->c_fef & FEF_IMR) { 991 extern int hz; 992 int rdtimo = RDWAITC << rs->sc_tab.b_errcnt; 993 #ifdef DEBUG 994 printf("%s: internal maintenance, %d second timeout\n", 995 rs->sc_dev.dv_xname, rdtimo); 996 rs->sc_stats.rdtimeouts++; 997 #endif 998 hpibfree(rs->sc_dev.dv_parent, &rs->sc_hq); 999 timeout(rdrestart, rs, rdtimo * hz); 1000 return(0); 1001 } 1002 /* 1003 * Only report error if we have reached the error reporting 1004 * threshhold. By default, this will only report after the 1005 * retry limit has been exceeded. 1006 */ 1007 if (rs->sc_tab.b_errcnt < rderrthresh) 1008 return(1); 1009 1010 /* 1011 * First conjure up the block number at which the error occured. 1012 * Note that not all errors report a block number, in that case 1013 * we just use b_blkno. 1014 */ 1015 bp = rs->sc_tab.b_actf; 1016 pbn = rs->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)].p_offset; 1017 if ((sp->c_fef & FEF_CU) || (sp->c_fef & FEF_DR) || 1018 (sp->c_ief & IEF_RRMASK)) { 1019 hwbn = RDBTOS(pbn + bp->b_blkno); 1020 pbn = bp->b_blkno; 1021 } else { 1022 hwbn = sp->c_blk; 1023 pbn = RDSTOB(hwbn) - pbn; 1024 } 1025 /* 1026 * Now output a generic message suitable for badsect. 1027 * Note that we don't use harderr cuz it just prints 1028 * out b_blkno which is just the beginning block number 1029 * of the transfer, not necessary where the error occured. 1030 */ 1031 printf("%s%c: hard error sn%d\n", rs->sc_dev.dv_xname, 1032 'a'+rdpart(bp->b_dev), pbn); 1033 /* 1034 * Now report the status as returned by the hardware with 1035 * attempt at interpretation (unless debugging). 1036 */ 1037 printf("%s %s error:", rs->sc_dev.dv_xname, 1038 (bp->b_flags & B_READ) ? "read" : "write"); 1039 #ifdef DEBUG 1040 if (rddebug & RDB_ERROR) { 1041 /* status info */ 1042 printf("\n volume: %d, unit: %d\n", 1043 (sp->c_vu>>4)&0xF, sp->c_vu&0xF); 1044 rdprinterr("reject", sp->c_ref, err_reject); 1045 rdprinterr("fault", sp->c_fef, err_fault); 1046 rdprinterr("access", sp->c_aef, err_access); 1047 rdprinterr("info", sp->c_ief, err_info); 1048 printf(" block: %d, P1-P10: ", hwbn); 1049 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1050 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1051 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1052 /* command */ 1053 printf(" ioc: "); 1054 printf("0x%x", *(u_int *)&rs->sc_ioc.c_pad); 1055 printf("0x%x", *(u_short *)&rs->sc_ioc.c_hiaddr); 1056 printf("0x%x", *(u_int *)&rs->sc_ioc.c_addr); 1057 printf("0x%x", *(u_short *)&rs->sc_ioc.c_nop2); 1058 printf("0x%x", *(u_int *)&rs->sc_ioc.c_len); 1059 printf("0x%x\n", *(u_short *)&rs->sc_ioc.c_cmd); 1060 return(1); 1061 } 1062 #endif 1063 printf(" v%d u%d, R0x%x F0x%x A0x%x I0x%x\n", 1064 (sp->c_vu>>4)&0xF, sp->c_vu&0xF, 1065 sp->c_ref, sp->c_fef, sp->c_aef, sp->c_ief); 1066 printf("P1-P10: "); 1067 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1068 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1069 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1070 return(1); 1071 } 1072 1073 int 1074 rdread(dev, uio, flags) 1075 dev_t dev; 1076 struct uio *uio; 1077 int flags; 1078 { 1079 1080 return (physio(rdstrategy, NULL, dev, B_READ, minphys, uio)); 1081 } 1082 1083 int 1084 rdwrite(dev, uio, flags) 1085 dev_t dev; 1086 struct uio *uio; 1087 int flags; 1088 { 1089 1090 return (physio(rdstrategy, NULL, dev, B_WRITE, minphys, uio)); 1091 } 1092 1093 int 1094 rdioctl(dev, cmd, data, flag, p) 1095 dev_t dev; 1096 u_long cmd; 1097 caddr_t data; 1098 int flag; 1099 struct proc *p; 1100 { 1101 int unit = rdunit(dev); 1102 struct rd_softc *sc = rd_cd.cd_devs[unit]; 1103 struct disklabel *lp = sc->sc_dkdev.dk_label; 1104 int error, flags; 1105 1106 switch (cmd) { 1107 case DIOCGDINFO: 1108 *(struct disklabel *)data = *lp; 1109 return (0); 1110 1111 case DIOCGPART: 1112 ((struct partinfo *)data)->disklab = lp; 1113 ((struct partinfo *)data)->part = 1114 &lp->d_partitions[rdpart(dev)]; 1115 return (0); 1116 1117 case DIOCWLABEL: 1118 if ((flag & FWRITE) == 0) 1119 return (EBADF); 1120 if (*(int *)data) 1121 sc->sc_flags |= RDF_WLABEL; 1122 else 1123 sc->sc_flags &= ~RDF_WLABEL; 1124 return (0); 1125 1126 case DIOCSDINFO: 1127 if ((flag & FWRITE) == 0) 1128 return (EBADF); 1129 return (setdisklabel(lp, (struct disklabel *)data, 1130 (sc->sc_flags & RDF_WLABEL) ? 0 1131 : sc->sc_dkdev.dk_openmask, 1132 (struct cpu_disklabel *)0)); 1133 1134 case DIOCWDINFO: 1135 if ((flag & FWRITE) == 0) 1136 return (EBADF); 1137 error = setdisklabel(lp, (struct disklabel *)data, 1138 (sc->sc_flags & RDF_WLABEL) ? 0 1139 : sc->sc_dkdev.dk_openmask, 1140 (struct cpu_disklabel *)0); 1141 if (error) 1142 return (error); 1143 flags = sc->sc_flags; 1144 sc->sc_flags = RDF_ALIVE | RDF_WLABEL; 1145 error = writedisklabel(rdlabdev(dev), rdstrategy, lp, 1146 (struct cpu_disklabel *)0); 1147 sc->sc_flags = flags; 1148 return (error); 1149 } 1150 return(EINVAL); 1151 } 1152 1153 int 1154 rdsize(dev) 1155 dev_t dev; 1156 { 1157 int unit = rdunit(dev); 1158 struct rd_softc *rs; 1159 int psize, didopen = 0; 1160 1161 if (unit >= rd_cd.cd_ndevs || 1162 (rs = rd_cd.cd_devs[unit]) == NULL || 1163 (rs->sc_flags & RDF_ALIVE) == 0) 1164 return (-1); 1165 1166 /* 1167 * We get called very early on (via swapconf) 1168 * without the device being open so we may need 1169 * to handle it here. 1170 */ 1171 if (rs->sc_dkdev.dk_openmask == 0) { 1172 if (rdopen(dev, FREAD|FWRITE, S_IFBLK, NULL)) 1173 return(-1); 1174 didopen = 1; 1175 } 1176 psize = rs->sc_dkdev.dk_label->d_partitions[rdpart(dev)].p_size * 1177 (rs->sc_dkdev.dk_label->d_secsize / DEV_BSIZE); 1178 if (didopen) 1179 (void) rdclose(dev, FREAD|FWRITE, S_IFBLK, NULL); 1180 return (psize); 1181 } 1182 1183 #ifdef DEBUG 1184 void 1185 rdprinterr(str, err, tab) 1186 char *str; 1187 short err; 1188 char **tab; 1189 { 1190 int i; 1191 int printed; 1192 1193 if (err == 0) 1194 return; 1195 printf(" %s error %d field:", str, err); 1196 printed = 0; 1197 for (i = 0; i < 16; i++) 1198 if (err & (0x8000 >> i)) 1199 printf("%s%s", printed++ ? " + " : " ", tab[i]); 1200 printf("\n"); 1201 } 1202 #endif 1203 1204 static int rddoingadump; /* simple mutex */ 1205 1206 /* 1207 * Non-interrupt driven, non-dma dump routine. 1208 */ 1209 int 1210 rddump(dev, blkno, va, size) 1211 dev_t dev; 1212 daddr_t blkno; 1213 caddr_t va; 1214 size_t size; 1215 { 1216 int sectorsize; /* size of a disk sector */ 1217 int nsects; /* number of sectors in partition */ 1218 int sectoff; /* sector offset of partition */ 1219 int totwrt; /* total number of sectors left to write */ 1220 int nwrt; /* current number of sectors to write */ 1221 int unit, part; 1222 int ctlr, slave; 1223 struct rd_softc *rs; 1224 struct disklabel *lp; 1225 char stat; 1226 1227 /* Check for recursive dump; if so, punt. */ 1228 if (rddoingadump) 1229 return (EFAULT); 1230 rddoingadump = 1; 1231 1232 /* Decompose unit and partition. */ 1233 unit = rdunit(dev); 1234 part = rdpart(dev); 1235 1236 /* Make sure dump device is ok. */ 1237 if (unit >= rd_cd.cd_ndevs || 1238 (rs = rd_cd.cd_devs[unit]) == NULL || 1239 (rs->sc_flags & RDF_ALIVE) == 0) 1240 return (ENXIO); 1241 1242 ctlr = rs->sc_dev.dv_parent->dv_unit; 1243 slave = rs->sc_slave; 1244 1245 /* 1246 * Convert to disk sectors. Request must be a multiple of size. 1247 */ 1248 lp = rs->sc_dkdev.dk_label; 1249 sectorsize = lp->d_secsize; 1250 if ((size % sectorsize) != 0) 1251 return (EFAULT); 1252 totwrt = size / sectorsize; 1253 blkno = dbtob(blkno) / sectorsize; /* blkno in DEV_BSIZE units */ 1254 1255 nsects = lp->d_partitions[part].p_size; 1256 sectoff = lp->d_partitions[part].p_offset; 1257 1258 /* Check transfer bounds against partition size. */ 1259 if ((blkno < 0) || (blkno + totwrt) > nsects) 1260 return (EINVAL); 1261 1262 /* Offset block number to start of partition. */ 1263 blkno += sectoff; 1264 1265 while (totwrt > 0) { 1266 nwrt = totwrt; /* XXX */ 1267 #ifndef RD_DUMP_NOT_TRUSTED 1268 /* 1269 * Fill out and send HPIB command. 1270 */ 1271 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 1272 rs->sc_ioc.c_volume = C_SVOL(0); 1273 rs->sc_ioc.c_saddr = C_SADDR; 1274 rs->sc_ioc.c_hiaddr = 0; 1275 rs->sc_ioc.c_addr = RDBTOS(blkno); 1276 rs->sc_ioc.c_nop2 = C_NOP; 1277 rs->sc_ioc.c_slen = C_SLEN; 1278 rs->sc_ioc.c_len = nwrt * sectorsize; 1279 rs->sc_ioc.c_cmd = C_WRITE; 1280 hpibsend(ctlr, slave, C_CMD, &rs->sc_ioc.c_unit, 1281 sizeof(rs->sc_ioc)-2); 1282 if (hpibswait(ctlr, slave)) 1283 return (EIO); 1284 1285 /* 1286 * Send the data. 1287 */ 1288 hpibsend(ctlr, slave, C_EXEC, va, nwrt * sectorsize); 1289 (void) hpibswait(ctlr, slave); 1290 hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 1291 if (stat) 1292 return (EIO); 1293 #else /* RD_DUMP_NOT_TRUSTED */ 1294 /* Let's just talk about this first... */ 1295 printf("%s: dump addr %p, blk %d\n", sc->sc_dev.dv_xname, 1296 va, blkno); 1297 delay(500 * 1000); /* half a second */ 1298 #endif /* RD_DUMP_NOT_TRUSTED */ 1299 1300 /* update block count */ 1301 totwrt -= nwrt; 1302 blkno += nwrt; 1303 va += sectorsize * nwrt; 1304 } 1305 rddoingadump = 0; 1306 return (0); 1307 } 1308