1 /* $NetBSD: rd.c,v 1.43 2000/05/27 04:52:28 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * Copyright (c) 1982, 1990, 1993 42 * The Regents of the University of California. All rights reserved. 43 * 44 * This code is derived from software contributed to Berkeley by 45 * the Systems Programming Group of the University of Utah Computer 46 * Science Department. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. All advertising materials mentioning features or use of this software 57 * must display the following acknowledgement: 58 * This product includes software developed by the University of 59 * California, Berkeley and its contributors. 60 * 4. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * from: Utah $Hdr: rd.c 1.44 92/12/26$ 77 * 78 * @(#)rd.c 8.2 (Berkeley) 5/19/94 79 */ 80 81 /* 82 * CS80/SS80 disk driver 83 */ 84 85 #include <sys/param.h> 86 #include <sys/systm.h> 87 #include <sys/buf.h> 88 #include <sys/conf.h> 89 #include <sys/device.h> 90 #include <sys/disk.h> 91 #include <sys/disklabel.h> 92 #include <sys/fcntl.h> 93 #include <sys/ioctl.h> 94 #include <sys/proc.h> 95 #include <sys/stat.h> 96 97 #include <hp300/dev/hpibvar.h> 98 99 #include <hp300/dev/rdreg.h> 100 #include <hp300/dev/rdvar.h> 101 102 #include "opt_useleds.h" 103 104 #ifdef USELEDS 105 #include <hp300/hp300/leds.h> 106 #endif 107 108 int rderrthresh = RDRETRY-1; /* when to start reporting errors */ 109 110 #ifdef DEBUG 111 /* error message tables */ 112 char *err_reject[] = { 113 0, 0, 114 "channel parity error", /* 0x2000 */ 115 0, 0, 116 "illegal opcode", /* 0x0400 */ 117 "module addressing", /* 0x0200 */ 118 "address bounds", /* 0x0100 */ 119 "parameter bounds", /* 0x0080 */ 120 "illegal parameter", /* 0x0040 */ 121 "message sequence", /* 0x0020 */ 122 0, 123 "message length", /* 0x0008 */ 124 0, 0, 0 125 }; 126 127 char *err_fault[] = { 128 0, 129 "cross unit", /* 0x4000 */ 130 0, 131 "controller fault", /* 0x1000 */ 132 0, 0, 133 "unit fault", /* 0x0200 */ 134 0, 135 "diagnostic result", /* 0x0080 */ 136 0, 137 "operator release request", /* 0x0020 */ 138 "diagnostic release request", /* 0x0010 */ 139 "internal maintenance release request", /* 0x0008 */ 140 0, 141 "power fail", /* 0x0002 */ 142 "retransmit" /* 0x0001 */ 143 }; 144 145 char *err_access[] = { 146 "illegal parallel operation", /* 0x8000 */ 147 "uninitialized media", /* 0x4000 */ 148 "no spares available", /* 0x2000 */ 149 "not ready", /* 0x1000 */ 150 "write protect", /* 0x0800 */ 151 "no data found", /* 0x0400 */ 152 0, 0, 153 "unrecoverable data overflow", /* 0x0080 */ 154 "unrecoverable data", /* 0x0040 */ 155 0, 156 "end of file", /* 0x0010 */ 157 "end of volume", /* 0x0008 */ 158 0, 0, 0 159 }; 160 161 char *err_info[] = { 162 "operator release request", /* 0x8000 */ 163 "diagnostic release request", /* 0x4000 */ 164 "internal maintenance release request", /* 0x2000 */ 165 "media wear", /* 0x1000 */ 166 "latency induced", /* 0x0800 */ 167 0, 0, 168 "auto sparing invoked", /* 0x0100 */ 169 0, 170 "recoverable data overflow", /* 0x0040 */ 171 "marginal data", /* 0x0020 */ 172 "recoverable data", /* 0x0010 */ 173 0, 174 "maintenance track overflow", /* 0x0004 */ 175 0, 0 176 }; 177 178 int rddebug = 0x80; 179 #define RDB_FOLLOW 0x01 180 #define RDB_STATUS 0x02 181 #define RDB_IDENT 0x04 182 #define RDB_IO 0x08 183 #define RDB_ASYNC 0x10 184 #define RDB_ERROR 0x80 185 #endif 186 187 /* 188 * Misc. HW description, indexed by sc_type. 189 * Nothing really critical here, could do without it. 190 */ 191 struct rdidentinfo rdidentinfo[] = { 192 { RD7946AID, 0, "7945A", NRD7945ABPT, 193 NRD7945ATRK, 968, 108416 }, 194 195 { RD9134DID, 1, "9134D", NRD9134DBPT, 196 NRD9134DTRK, 303, 29088 }, 197 198 { RD9134LID, 1, "9122S", NRD9122SBPT, 199 NRD9122STRK, 77, 1232 }, 200 201 { RD7912PID, 0, "7912P", NRD7912PBPT, 202 NRD7912PTRK, 572, 128128 }, 203 204 { RD7914PID, 0, "7914P", NRD7914PBPT, 205 NRD7914PTRK, 1152, 258048 }, 206 207 { RD7958AID, 0, "7958A", NRD7958ABPT, 208 NRD7958ATRK, 1013, 255276 }, 209 210 { RD7957AID, 0, "7957A", NRD7957ABPT, 211 NRD7957ATRK, 1036, 159544 }, 212 213 { RD7933HID, 0, "7933H", NRD7933HBPT, 214 NRD7933HTRK, 1321, 789958 }, 215 216 { RD9134LID, 1, "9134L", NRD9134LBPT, 217 NRD9134LTRK, 973, 77840 }, 218 219 { RD7936HID, 0, "7936H", NRD7936HBPT, 220 NRD7936HTRK, 698, 600978 }, 221 222 { RD7937HID, 0, "7937H", NRD7937HBPT, 223 NRD7937HTRK, 698, 1116102 }, 224 225 { RD7914CTID, 0, "7914CT", NRD7914PBPT, 226 NRD7914PTRK, 1152, 258048 }, 227 228 { RD7946AID, 0, "7946A", NRD7945ABPT, 229 NRD7945ATRK, 968, 108416 }, 230 231 { RD9134LID, 1, "9122D", NRD9122SBPT, 232 NRD9122STRK, 77, 1232 }, 233 234 { RD7957BID, 0, "7957B", NRD7957BBPT, 235 NRD7957BTRK, 1269, 159894 }, 236 237 { RD7958BID, 0, "7958B", NRD7958BBPT, 238 NRD7958BTRK, 786, 297108 }, 239 240 { RD7959BID, 0, "7959B", NRD7959BBPT, 241 NRD7959BTRK, 1572, 594216 }, 242 243 { RD2200AID, 0, "2200A", NRD2200ABPT, 244 NRD2200ATRK, 1449, 654948 }, 245 246 { RD2203AID, 0, "2203A", NRD2203ABPT, 247 NRD2203ATRK, 1449, 1309896 } 248 }; 249 int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]); 250 251 bdev_decl(rd); 252 cdev_decl(rd); 253 254 int rdident __P((struct device *, struct rd_softc *, 255 struct hpibbus_attach_args *)); 256 void rdreset __P((struct rd_softc *)); 257 void rdustart __P((struct rd_softc *)); 258 int rdgetinfo __P((dev_t)); 259 void rdrestart __P((void *)); 260 struct buf *rdfinish __P((struct rd_softc *, struct buf *)); 261 262 void rdrestart __P((void *)); 263 void rdustart __P((struct rd_softc *)); 264 struct buf *rdfinish __P((struct rd_softc *, struct buf *)); 265 void rdstart __P((void *)); 266 void rdgo __P((void *)); 267 void rdintr __P((void *)); 268 int rdstatus __P((struct rd_softc *)); 269 int rderror __P((int)); 270 #ifdef DEBUG 271 void rdprinterr __P((char *, short, char **)); 272 #endif 273 274 int rdmatch __P((struct device *, struct cfdata *, void *)); 275 void rdattach __P((struct device *, struct device *, void *)); 276 277 struct cfattach rd_ca = { 278 sizeof(struct rd_softc), rdmatch, rdattach 279 }; 280 281 extern struct cfdriver rd_cd; 282 283 int 284 rdmatch(parent, match, aux) 285 struct device *parent; 286 struct cfdata *match; 287 void *aux; 288 { 289 struct hpibbus_attach_args *ha = aux; 290 291 /* 292 * Set punit if operator specified one in the kernel 293 * configuration file. 294 */ 295 if (match->hpibbuscf_punit != HPIBBUSCF_PUNIT_DEFAULT && 296 match->hpibbuscf_punit < HPIB_NPUNITS) 297 ha->ha_punit = match->hpibbuscf_punit; 298 299 if (rdident(parent, NULL, ha) == 0) { 300 /* 301 * XXX Some aging HP-IB drives are slow to 302 * XXX respond; give them a chance to catch 303 * XXX up and probe them again. 304 */ 305 delay(10000); 306 ha->ha_id = hpibid(parent->dv_unit, ha->ha_slave); 307 return (rdident(parent, NULL, ha)); 308 } 309 return (1); 310 } 311 312 void 313 rdattach(parent, self, aux) 314 struct device *parent, *self; 315 void *aux; 316 { 317 struct rd_softc *sc = (struct rd_softc *)self; 318 struct hpibbus_attach_args *ha = aux; 319 320 BUFQ_INIT(&sc->sc_tab); 321 322 if (rdident(parent, sc, ha) == 0) { 323 printf("\n%s: didn't respond to describe command!\n", 324 sc->sc_dev.dv_xname); 325 return; 326 } 327 328 /* 329 * Initialize and attach the disk structure. 330 */ 331 bzero(&sc->sc_dkdev, sizeof(sc->sc_dkdev)); 332 sc->sc_dkdev.dk_name = sc->sc_dev.dv_xname; 333 disk_attach(&sc->sc_dkdev); 334 335 sc->sc_slave = ha->ha_slave; 336 sc->sc_punit = ha->ha_punit; 337 338 callout_init(&sc->sc_restart_ch); 339 340 /* Initialize the hpib job queue entry */ 341 sc->sc_hq.hq_softc = sc; 342 sc->sc_hq.hq_slave = sc->sc_slave; 343 sc->sc_hq.hq_start = rdstart; 344 sc->sc_hq.hq_go = rdgo; 345 sc->sc_hq.hq_intr = rdintr; 346 347 sc->sc_flags = RDF_ALIVE; 348 #ifdef DEBUG 349 /* always report errors */ 350 if (rddebug & RDB_ERROR) 351 rderrthresh = 0; 352 #endif 353 } 354 355 int 356 rdident(parent, sc, ha) 357 struct device *parent; 358 struct rd_softc *sc; 359 struct hpibbus_attach_args *ha; 360 { 361 struct rd_describe *desc = sc != NULL ? &sc->sc_rddesc : NULL; 362 u_char stat, cmd[3]; 363 char name[7]; 364 int i, id, n, ctlr, slave; 365 366 ctlr = parent->dv_unit; 367 slave = ha->ha_slave; 368 369 /* Verify that we have a CS80 device. */ 370 if ((ha->ha_id & 0x200) == 0) 371 return (0); 372 373 /* Is it one of the disks we support? */ 374 for (id = 0; id < numrdidentinfo; id++) 375 if (ha->ha_id == rdidentinfo[id].ri_hwid) 376 break; 377 if (id == numrdidentinfo || ha->ha_punit > rdidentinfo[id].ri_maxunum) 378 return (0); 379 380 /* 381 * If we're just probing for the device, that's all the 382 * work we need to do. 383 */ 384 if (sc == NULL) 385 return (1); 386 387 /* 388 * Reset device and collect description 389 */ 390 rdreset(sc); 391 cmd[0] = C_SUNIT(ha->ha_punit); 392 cmd[1] = C_SVOL(0); 393 cmd[2] = C_DESC; 394 hpibsend(ctlr, slave, C_CMD, cmd, sizeof(cmd)); 395 hpibrecv(ctlr, slave, C_EXEC, desc, 37); 396 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 397 bzero(name, sizeof(name)); 398 if (stat == 0) { 399 n = desc->d_name; 400 for (i = 5; i >= 0; i--) { 401 name[i] = (n & 0xf) + '0'; 402 n >>= 4; 403 } 404 } 405 406 #ifdef DEBUG 407 if (rddebug & RDB_IDENT) { 408 printf("\n%s: name: %x ('%s')\n", 409 sc->sc_dev.dv_xname, desc->d_name, name); 410 printf(" iuw %x, maxxfr %d, ctype %d\n", 411 desc->d_iuw, desc->d_cmaxxfr, desc->d_ctype); 412 printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n", 413 desc->d_utype, desc->d_sectsize, 414 desc->d_blkbuf, desc->d_burstsize, desc->d_blocktime); 415 printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n", 416 desc->d_uavexfr, desc->d_retry, desc->d_access, 417 desc->d_maxint, desc->d_fvbyte, desc->d_rvbyte); 418 printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n", 419 desc->d_maxcyl, desc->d_maxhead, desc->d_maxsect, 420 desc->d_maxvsectl, desc->d_interleave); 421 printf("%s", sc->sc_dev.dv_xname); 422 } 423 #endif 424 425 /* 426 * Take care of a couple of anomolies: 427 * 1. 7945A and 7946A both return same HW id 428 * 2. 9122S and 9134D both return same HW id 429 * 3. 9122D and 9134L both return same HW id 430 */ 431 switch (ha->ha_id) { 432 case RD7946AID: 433 if (bcmp(name, "079450", 6) == 0) 434 id = RD7945A; 435 else 436 id = RD7946A; 437 break; 438 439 case RD9134LID: 440 if (bcmp(name, "091340", 6) == 0) 441 id = RD9134L; 442 else 443 id = RD9122D; 444 break; 445 446 case RD9134DID: 447 if (bcmp(name, "091220", 6) == 0) 448 id = RD9122S; 449 else 450 id = RD9134D; 451 break; 452 } 453 454 sc->sc_type = id; 455 456 /* 457 * XXX We use DEV_BSIZE instead of the sector size value pulled 458 * XXX off the driver because all of this code assumes 512 byte 459 * XXX blocks. ICK! 460 */ 461 printf(": %s\n", rdidentinfo[id].ri_desc); 462 printf("%s: %d cylinders, %d heads, %d blocks, %d bytes/block\n", 463 sc->sc_dev.dv_xname, rdidentinfo[id].ri_ncyl, 464 rdidentinfo[id].ri_ntpc, rdidentinfo[id].ri_nblocks, 465 DEV_BSIZE); 466 467 return (1); 468 } 469 470 void 471 rdreset(rs) 472 struct rd_softc *rs; 473 { 474 int ctlr = rs->sc_dev.dv_parent->dv_unit; 475 int slave = rs->sc_slave; 476 u_char stat; 477 478 rs->sc_clear.c_unit = C_SUNIT(rs->sc_punit); 479 rs->sc_clear.c_cmd = C_CLEAR; 480 hpibsend(ctlr, slave, C_TCMD, &rs->sc_clear, sizeof(rs->sc_clear)); 481 hpibswait(ctlr, slave); 482 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 483 484 rs->sc_src.c_unit = C_SUNIT(RDCTLR); 485 rs->sc_src.c_nop = C_NOP; 486 rs->sc_src.c_cmd = C_SREL; 487 rs->sc_src.c_param = C_REL; 488 hpibsend(ctlr, slave, C_CMD, &rs->sc_src, sizeof(rs->sc_src)); 489 hpibswait(ctlr, slave); 490 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 491 492 rs->sc_ssmc.c_unit = C_SUNIT(rs->sc_punit); 493 rs->sc_ssmc.c_cmd = C_SSM; 494 rs->sc_ssmc.c_refm = REF_MASK; 495 rs->sc_ssmc.c_fefm = FEF_MASK; 496 rs->sc_ssmc.c_aefm = AEF_MASK; 497 rs->sc_ssmc.c_iefm = IEF_MASK; 498 hpibsend(ctlr, slave, C_CMD, &rs->sc_ssmc, sizeof(rs->sc_ssmc)); 499 hpibswait(ctlr, slave); 500 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 501 #ifdef DEBUG 502 rs->sc_stats.rdresets++; 503 #endif 504 } 505 506 /* 507 * Read or constuct a disklabel 508 */ 509 int 510 rdgetinfo(dev) 511 dev_t dev; 512 { 513 int unit = rdunit(dev); 514 struct rd_softc *rs = rd_cd.cd_devs[unit]; 515 struct disklabel *lp = rs->sc_dkdev.dk_label; 516 struct partition *pi; 517 char *msg; 518 519 /* 520 * Set some default values to use while reading the label 521 * or to use if there isn't a label. 522 */ 523 bzero((caddr_t)lp, sizeof *lp); 524 lp->d_type = DTYPE_HPIB; 525 lp->d_secsize = DEV_BSIZE; 526 lp->d_nsectors = 32; 527 lp->d_ntracks = 20; 528 lp->d_ncylinders = 1; 529 lp->d_secpercyl = 32*20; 530 lp->d_npartitions = 3; 531 lp->d_partitions[2].p_offset = 0; 532 lp->d_partitions[2].p_size = LABELSECTOR+1; 533 534 /* 535 * Now try to read the disklabel 536 */ 537 msg = readdisklabel(rdlabdev(dev), rdstrategy, lp, NULL); 538 if (msg == NULL) 539 return (0); 540 541 pi = lp->d_partitions; 542 printf("%s: WARNING: %s, ", rs->sc_dev.dv_xname, msg); 543 #ifdef COMPAT_NOLABEL 544 printf("using old default partitioning\n"); 545 rdmakedisklabel(unit, lp); 546 #else 547 printf("defining `c' partition as entire disk\n"); 548 pi[2].p_size = rdidentinfo[rs->sc_type].ri_nblocks; 549 /* XXX reset other info since readdisklabel screws with it */ 550 lp->d_npartitions = 3; 551 pi[0].p_size = 0; 552 #endif 553 return(0); 554 } 555 556 int 557 rdopen(dev, flags, mode, p) 558 dev_t dev; 559 int flags, mode; 560 struct proc *p; 561 { 562 int unit = rdunit(dev); 563 struct rd_softc *rs; 564 int error, mask, part; 565 566 if (unit >= rd_cd.cd_ndevs || 567 (rs = rd_cd.cd_devs[unit]) == NULL || 568 (rs->sc_flags & RDF_ALIVE) == 0) 569 return (ENXIO); 570 571 /* 572 * Wait for any pending opens/closes to complete 573 */ 574 while (rs->sc_flags & (RDF_OPENING|RDF_CLOSING)) 575 (void) tsleep(rs, PRIBIO, "rdopen", 0); 576 577 /* 578 * On first open, get label and partition info. 579 * We may block reading the label, so be careful 580 * to stop any other opens. 581 */ 582 if (rs->sc_dkdev.dk_openmask == 0) { 583 rs->sc_flags |= RDF_OPENING; 584 error = rdgetinfo(dev); 585 rs->sc_flags &= ~RDF_OPENING; 586 wakeup((caddr_t)rs); 587 if (error) 588 return(error); 589 } 590 591 part = rdpart(dev); 592 mask = 1 << part; 593 594 /* Check that the partition exists. */ 595 if (part != RAW_PART && 596 (part > rs->sc_dkdev.dk_label->d_npartitions || 597 rs->sc_dkdev.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) 598 return (ENXIO); 599 600 /* Ensure only one open at a time. */ 601 switch (mode) { 602 case S_IFCHR: 603 rs->sc_dkdev.dk_copenmask |= mask; 604 break; 605 case S_IFBLK: 606 rs->sc_dkdev.dk_bopenmask |= mask; 607 break; 608 } 609 rs->sc_dkdev.dk_openmask = 610 rs->sc_dkdev.dk_copenmask | rs->sc_dkdev.dk_bopenmask; 611 612 return(0); 613 } 614 615 int 616 rdclose(dev, flag, mode, p) 617 dev_t dev; 618 int flag, mode; 619 struct proc *p; 620 { 621 int unit = rdunit(dev); 622 struct rd_softc *rs = rd_cd.cd_devs[unit]; 623 struct disk *dk = &rs->sc_dkdev; 624 int mask, s; 625 626 mask = 1 << rdpart(dev); 627 if (mode == S_IFCHR) 628 dk->dk_copenmask &= ~mask; 629 else 630 dk->dk_bopenmask &= ~mask; 631 dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; 632 /* 633 * On last close, we wait for all activity to cease since 634 * the label/parition info will become invalid. Since we 635 * might sleep, we must block any opens while we are here. 636 * Note we don't have to about other closes since we know 637 * we are the last one. 638 */ 639 if (dk->dk_openmask == 0) { 640 rs->sc_flags |= RDF_CLOSING; 641 s = splbio(); 642 while (rs->sc_active) { 643 rs->sc_flags |= RDF_WANTED; 644 (void) tsleep(&rs->sc_tab, PRIBIO, "rdclose", 0); 645 } 646 splx(s); 647 rs->sc_flags &= ~(RDF_CLOSING|RDF_WLABEL); 648 wakeup((caddr_t)rs); 649 } 650 return(0); 651 } 652 653 void 654 rdstrategy(bp) 655 struct buf *bp; 656 { 657 int unit = rdunit(bp->b_dev); 658 struct rd_softc *rs = rd_cd.cd_devs[unit]; 659 struct partition *pinfo; 660 daddr_t bn; 661 int sz, s; 662 int offset; 663 664 #ifdef DEBUG 665 if (rddebug & RDB_FOLLOW) 666 printf("rdstrategy(%p): dev %x, bn %x, bcount %lx, %c\n", 667 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 668 (bp->b_flags & B_READ) ? 'R' : 'W'); 669 #endif 670 bn = bp->b_blkno; 671 sz = howmany(bp->b_bcount, DEV_BSIZE); 672 pinfo = &rs->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)]; 673 674 /* Don't perform partition translation on RAW_PART. */ 675 offset = (rdpart(bp->b_dev) == RAW_PART) ? 0 : pinfo->p_offset; 676 677 if (rdpart(bp->b_dev) != RAW_PART) { 678 /* 679 * XXX This block of code belongs in 680 * XXX bounds_check_with_label() 681 */ 682 683 if (bn < 0 || bn + sz > pinfo->p_size) { 684 sz = pinfo->p_size - bn; 685 if (sz == 0) { 686 bp->b_resid = bp->b_bcount; 687 goto done; 688 } 689 if (sz < 0) { 690 bp->b_error = EINVAL; 691 goto bad; 692 } 693 bp->b_bcount = dbtob(sz); 694 } 695 /* 696 * Check for write to write protected label 697 */ 698 if (bn + offset <= LABELSECTOR && 699 #if LABELSECTOR != 0 700 bn + offset + sz > LABELSECTOR && 701 #endif 702 !(bp->b_flags & B_READ) && !(rs->sc_flags & RDF_WLABEL)) { 703 bp->b_error = EROFS; 704 goto bad; 705 } 706 } 707 bp->b_rawblkno = bn + offset; 708 s = splbio(); 709 disksort_blkno(&rs->sc_tab, bp); 710 if (rs->sc_active == 0) { 711 rs->sc_active = 1; 712 rdustart(rs); 713 } 714 splx(s); 715 return; 716 bad: 717 bp->b_flags |= B_ERROR; 718 done: 719 biodone(bp); 720 } 721 722 /* 723 * Called from timeout() when handling maintenance releases 724 */ 725 void 726 rdrestart(arg) 727 void *arg; 728 { 729 int s = splbio(); 730 rdustart((struct rd_softc *)arg); 731 splx(s); 732 } 733 734 void 735 rdustart(rs) 736 struct rd_softc *rs; 737 { 738 struct buf *bp; 739 740 bp = BUFQ_FIRST(&rs->sc_tab); 741 rs->sc_addr = bp->b_data; 742 rs->sc_resid = bp->b_bcount; 743 if (hpibreq(rs->sc_dev.dv_parent, &rs->sc_hq)) 744 rdstart(rs); 745 } 746 747 struct buf * 748 rdfinish(rs, bp) 749 struct rd_softc *rs; 750 struct buf *bp; 751 { 752 753 rs->sc_errcnt = 0; 754 BUFQ_REMOVE(&rs->sc_tab, bp); 755 bp->b_resid = 0; 756 biodone(bp); 757 hpibfree(rs->sc_dev.dv_parent, &rs->sc_hq); 758 if ((bp = BUFQ_FIRST(&rs->sc_tab)) != NULL) 759 return (bp); 760 rs->sc_active = 0; 761 if (rs->sc_flags & RDF_WANTED) { 762 rs->sc_flags &= ~RDF_WANTED; 763 wakeup((caddr_t)&rs->sc_tab); 764 } 765 return (NULL); 766 } 767 768 void 769 rdstart(arg) 770 void *arg; 771 { 772 struct rd_softc *rs = arg; 773 struct buf *bp = BUFQ_FIRST(&rs->sc_tab); 774 int part, ctlr, slave; 775 776 ctlr = rs->sc_dev.dv_parent->dv_unit; 777 slave = rs->sc_slave; 778 779 again: 780 #ifdef DEBUG 781 if (rddebug & RDB_FOLLOW) 782 printf("rdstart(%s): bp %p, %c\n", rs->sc_dev.dv_xname, bp, 783 (bp->b_flags & B_READ) ? 'R' : 'W'); 784 #endif 785 part = rdpart(bp->b_dev); 786 rs->sc_flags |= RDF_SEEK; 787 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 788 rs->sc_ioc.c_volume = C_SVOL(0); 789 rs->sc_ioc.c_saddr = C_SADDR; 790 rs->sc_ioc.c_hiaddr = 0; 791 rs->sc_ioc.c_addr = RDBTOS(bp->b_rawblkno); 792 rs->sc_ioc.c_nop2 = C_NOP; 793 rs->sc_ioc.c_slen = C_SLEN; 794 rs->sc_ioc.c_len = rs->sc_resid; 795 rs->sc_ioc.c_cmd = bp->b_flags & B_READ ? C_READ : C_WRITE; 796 #ifdef DEBUG 797 if (rddebug & RDB_IO) 798 printf("rdstart: hpibsend(%x, %x, %x, %p, %x)\n", 799 ctlr, slave, C_CMD, 800 &rs->sc_ioc.c_unit, sizeof(rs->sc_ioc)-2); 801 #endif 802 if (hpibsend(ctlr, slave, C_CMD, &rs->sc_ioc.c_unit, 803 sizeof(rs->sc_ioc)-2) == sizeof(rs->sc_ioc)-2) { 804 805 /* Instrumentation. */ 806 disk_busy(&rs->sc_dkdev); 807 rs->sc_dkdev.dk_seek++; 808 809 #ifdef DEBUG 810 if (rddebug & RDB_IO) 811 printf("rdstart: hpibawait(%x)\n", ctlr); 812 #endif 813 hpibawait(ctlr); 814 return; 815 } 816 /* 817 * Experience has shown that the hpibwait in this hpibsend will 818 * occasionally timeout. It appears to occur mostly on old 7914 819 * drives with full maintenance tracks. We should probably 820 * integrate this with the backoff code in rderror. 821 */ 822 #ifdef DEBUG 823 if (rddebug & RDB_ERROR) 824 printf("%s: rdstart: cmd %x adr %lx blk %d len %d ecnt %d\n", 825 rs->sc_dev.dv_xname, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 826 bp->b_blkno, rs->sc_resid, rs->sc_errcnt); 827 rs->sc_stats.rdretries++; 828 #endif 829 rs->sc_flags &= ~RDF_SEEK; 830 rdreset(rs); 831 if (rs->sc_errcnt++ < RDRETRY) 832 goto again; 833 printf("%s: rdstart err: cmd 0x%x sect %ld blk %d len %d\n", 834 rs->sc_dev.dv_xname, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 835 bp->b_blkno, rs->sc_resid); 836 bp->b_flags |= B_ERROR; 837 bp->b_error = EIO; 838 bp = rdfinish(rs, bp); 839 if (bp) { 840 rs->sc_addr = bp->b_data; 841 rs->sc_resid = bp->b_bcount; 842 if (hpibreq(rs->sc_dev.dv_parent, &rs->sc_hq)) 843 goto again; 844 } 845 } 846 847 void 848 rdgo(arg) 849 void *arg; 850 { 851 struct rd_softc *rs = arg; 852 struct buf *bp = BUFQ_FIRST(&rs->sc_tab); 853 int rw, ctlr, slave; 854 855 ctlr = rs->sc_dev.dv_parent->dv_unit; 856 slave = rs->sc_slave; 857 858 rw = bp->b_flags & B_READ; 859 860 /* Instrumentation. */ 861 disk_busy(&rs->sc_dkdev); 862 863 #ifdef USELEDS 864 ledcontrol(0, 0, LED_DISK); 865 #endif 866 hpibgo(ctlr, slave, C_EXEC, rs->sc_addr, rs->sc_resid, rw, rw != 0); 867 } 868 869 /* ARGSUSED */ 870 void 871 rdintr(arg) 872 void *arg; 873 { 874 struct rd_softc *rs = arg; 875 int unit = rs->sc_dev.dv_unit; 876 struct buf *bp = BUFQ_FIRST(&rs->sc_tab); 877 u_char stat = 13; /* in case hpibrecv fails */ 878 int rv, restart, ctlr, slave; 879 880 ctlr = rs->sc_dev.dv_parent->dv_unit; 881 slave = rs->sc_slave; 882 883 #ifdef DEBUG 884 if (rddebug & RDB_FOLLOW) 885 printf("rdintr(%d): bp %p, %c, flags %x\n", unit, bp, 886 (bp->b_flags & B_READ) ? 'R' : 'W', rs->sc_flags); 887 if (bp == NULL) { 888 printf("%s: bp == NULL\n", rs->sc_dev.dv_xname); 889 return; 890 } 891 #endif 892 disk_unbusy(&rs->sc_dkdev, (bp->b_bcount - bp->b_resid)); 893 894 if (rs->sc_flags & RDF_SEEK) { 895 rs->sc_flags &= ~RDF_SEEK; 896 if (hpibustart(ctlr)) 897 rdgo(rs); 898 return; 899 } 900 if ((rs->sc_flags & RDF_SWAIT) == 0) { 901 #ifdef DEBUG 902 rs->sc_stats.rdpolltries++; 903 #endif 904 if (hpibpptest(ctlr, slave) == 0) { 905 #ifdef DEBUG 906 rs->sc_stats.rdpollwaits++; 907 #endif 908 909 /* Instrumentation. */ 910 disk_busy(&rs->sc_dkdev); 911 rs->sc_flags |= RDF_SWAIT; 912 hpibawait(ctlr); 913 return; 914 } 915 } else 916 rs->sc_flags &= ~RDF_SWAIT; 917 rv = hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 918 if (rv != 1 || stat) { 919 #ifdef DEBUG 920 if (rddebug & RDB_ERROR) 921 printf("rdintr: recv failed or bad stat %d\n", stat); 922 #endif 923 restart = rderror(unit); 924 #ifdef DEBUG 925 rs->sc_stats.rdretries++; 926 #endif 927 if (rs->sc_errcnt++ < RDRETRY) { 928 if (restart) 929 rdstart(rs); 930 return; 931 } 932 bp->b_flags |= B_ERROR; 933 bp->b_error = EIO; 934 } 935 if (rdfinish(rs, bp)) 936 rdustart(rs); 937 } 938 939 int 940 rdstatus(rs) 941 struct rd_softc *rs; 942 { 943 int c, s; 944 u_char stat; 945 int rv; 946 947 c = rs->sc_dev.dv_parent->dv_unit; 948 s = rs->sc_slave; 949 rs->sc_rsc.c_unit = C_SUNIT(rs->sc_punit); 950 rs->sc_rsc.c_sram = C_SRAM; 951 rs->sc_rsc.c_ram = C_RAM; 952 rs->sc_rsc.c_cmd = C_STATUS; 953 bzero((caddr_t)&rs->sc_stat, sizeof(rs->sc_stat)); 954 rv = hpibsend(c, s, C_CMD, &rs->sc_rsc, sizeof(rs->sc_rsc)); 955 if (rv != sizeof(rs->sc_rsc)) { 956 #ifdef DEBUG 957 if (rddebug & RDB_STATUS) 958 printf("rdstatus: send C_CMD failed %d != %d\n", 959 rv, sizeof(rs->sc_rsc)); 960 #endif 961 return(1); 962 } 963 rv = hpibrecv(c, s, C_EXEC, &rs->sc_stat, sizeof(rs->sc_stat)); 964 if (rv != sizeof(rs->sc_stat)) { 965 #ifdef DEBUG 966 if (rddebug & RDB_STATUS) 967 printf("rdstatus: send C_EXEC failed %d != %d\n", 968 rv, sizeof(rs->sc_stat)); 969 #endif 970 return(1); 971 } 972 rv = hpibrecv(c, s, C_QSTAT, &stat, 1); 973 if (rv != 1 || stat) { 974 #ifdef DEBUG 975 if (rddebug & RDB_STATUS) 976 printf("rdstatus: recv failed %d or bad stat %d\n", 977 rv, stat); 978 #endif 979 return(1); 980 } 981 return(0); 982 } 983 984 /* 985 * Deal with errors. 986 * Returns 1 if request should be restarted, 987 * 0 if we should just quietly give up. 988 */ 989 int 990 rderror(unit) 991 int unit; 992 { 993 struct rd_softc *rs = rd_cd.cd_devs[unit]; 994 struct rd_stat *sp; 995 struct buf *bp; 996 daddr_t hwbn, pbn; 997 char *hexstr __P((int, int)); /* XXX */ 998 999 if (rdstatus(rs)) { 1000 #ifdef DEBUG 1001 printf("%s: couldn't get status\n", rs->sc_dev.dv_xname); 1002 #endif 1003 rdreset(rs); 1004 return(1); 1005 } 1006 sp = &rs->sc_stat; 1007 if (sp->c_fef & FEF_REXMT) 1008 return(1); 1009 if (sp->c_fef & FEF_PF) { 1010 rdreset(rs); 1011 return(1); 1012 } 1013 /* 1014 * Unit requests release for internal maintenance. 1015 * We just delay awhile and try again later. Use expontially 1016 * increasing backoff ala ethernet drivers since we don't really 1017 * know how long the maintenance will take. With RDWAITC and 1018 * RDRETRY as defined, the range is 1 to 32 seconds. 1019 */ 1020 if (sp->c_fef & FEF_IMR) { 1021 extern int hz; 1022 int rdtimo = RDWAITC << rs->sc_errcnt; 1023 #ifdef DEBUG 1024 printf("%s: internal maintenance, %d second timeout\n", 1025 rs->sc_dev.dv_xname, rdtimo); 1026 rs->sc_stats.rdtimeouts++; 1027 #endif 1028 hpibfree(rs->sc_dev.dv_parent, &rs->sc_hq); 1029 callout_reset(&rs->sc_restart_ch, rdtimo * hz, rdrestart, rs); 1030 return(0); 1031 } 1032 /* 1033 * Only report error if we have reached the error reporting 1034 * threshhold. By default, this will only report after the 1035 * retry limit has been exceeded. 1036 */ 1037 if (rs->sc_errcnt < rderrthresh) 1038 return(1); 1039 1040 /* 1041 * First conjure up the block number at which the error occured. 1042 * Note that not all errors report a block number, in that case 1043 * we just use b_blkno. 1044 */ 1045 bp = BUFQ_FIRST(&rs->sc_tab); 1046 pbn = rs->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)].p_offset; 1047 if ((sp->c_fef & FEF_CU) || (sp->c_fef & FEF_DR) || 1048 (sp->c_ief & IEF_RRMASK)) { 1049 hwbn = RDBTOS(pbn + bp->b_blkno); 1050 pbn = bp->b_blkno; 1051 } else { 1052 hwbn = sp->c_blk; 1053 pbn = RDSTOB(hwbn) - pbn; 1054 } 1055 /* 1056 * Now output a generic message suitable for badsect. 1057 * Note that we don't use harderr cuz it just prints 1058 * out b_blkno which is just the beginning block number 1059 * of the transfer, not necessary where the error occured. 1060 */ 1061 printf("%s%c: hard error sn%d\n", rs->sc_dev.dv_xname, 1062 'a'+rdpart(bp->b_dev), pbn); 1063 /* 1064 * Now report the status as returned by the hardware with 1065 * attempt at interpretation (unless debugging). 1066 */ 1067 printf("%s %s error:", rs->sc_dev.dv_xname, 1068 (bp->b_flags & B_READ) ? "read" : "write"); 1069 #ifdef DEBUG 1070 if (rddebug & RDB_ERROR) { 1071 /* status info */ 1072 printf("\n volume: %d, unit: %d\n", 1073 (sp->c_vu>>4)&0xF, sp->c_vu&0xF); 1074 rdprinterr("reject", sp->c_ref, err_reject); 1075 rdprinterr("fault", sp->c_fef, err_fault); 1076 rdprinterr("access", sp->c_aef, err_access); 1077 rdprinterr("info", sp->c_ief, err_info); 1078 printf(" block: %d, P1-P10: ", hwbn); 1079 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1080 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1081 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1082 /* command */ 1083 printf(" ioc: "); 1084 printf("0x%x", *(u_int *)&rs->sc_ioc.c_pad); 1085 printf("0x%x", *(u_short *)&rs->sc_ioc.c_hiaddr); 1086 printf("0x%x", *(u_int *)&rs->sc_ioc.c_addr); 1087 printf("0x%x", *(u_short *)&rs->sc_ioc.c_nop2); 1088 printf("0x%x", *(u_int *)&rs->sc_ioc.c_len); 1089 printf("0x%x\n", *(u_short *)&rs->sc_ioc.c_cmd); 1090 return(1); 1091 } 1092 #endif 1093 printf(" v%d u%d, R0x%x F0x%x A0x%x I0x%x\n", 1094 (sp->c_vu>>4)&0xF, sp->c_vu&0xF, 1095 sp->c_ref, sp->c_fef, sp->c_aef, sp->c_ief); 1096 printf("P1-P10: "); 1097 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1098 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1099 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1100 return(1); 1101 } 1102 1103 int 1104 rdread(dev, uio, flags) 1105 dev_t dev; 1106 struct uio *uio; 1107 int flags; 1108 { 1109 1110 return (physio(rdstrategy, NULL, dev, B_READ, minphys, uio)); 1111 } 1112 1113 int 1114 rdwrite(dev, uio, flags) 1115 dev_t dev; 1116 struct uio *uio; 1117 int flags; 1118 { 1119 1120 return (physio(rdstrategy, NULL, dev, B_WRITE, minphys, uio)); 1121 } 1122 1123 int 1124 rdioctl(dev, cmd, data, flag, p) 1125 dev_t dev; 1126 u_long cmd; 1127 caddr_t data; 1128 int flag; 1129 struct proc *p; 1130 { 1131 int unit = rdunit(dev); 1132 struct rd_softc *sc = rd_cd.cd_devs[unit]; 1133 struct disklabel *lp = sc->sc_dkdev.dk_label; 1134 int error, flags; 1135 1136 switch (cmd) { 1137 case DIOCGDINFO: 1138 *(struct disklabel *)data = *lp; 1139 return (0); 1140 1141 case DIOCGPART: 1142 ((struct partinfo *)data)->disklab = lp; 1143 ((struct partinfo *)data)->part = 1144 &lp->d_partitions[rdpart(dev)]; 1145 return (0); 1146 1147 case DIOCWLABEL: 1148 if ((flag & FWRITE) == 0) 1149 return (EBADF); 1150 if (*(int *)data) 1151 sc->sc_flags |= RDF_WLABEL; 1152 else 1153 sc->sc_flags &= ~RDF_WLABEL; 1154 return (0); 1155 1156 case DIOCSDINFO: 1157 if ((flag & FWRITE) == 0) 1158 return (EBADF); 1159 return (setdisklabel(lp, (struct disklabel *)data, 1160 (sc->sc_flags & RDF_WLABEL) ? 0 1161 : sc->sc_dkdev.dk_openmask, 1162 (struct cpu_disklabel *)0)); 1163 1164 case DIOCWDINFO: 1165 if ((flag & FWRITE) == 0) 1166 return (EBADF); 1167 error = setdisklabel(lp, (struct disklabel *)data, 1168 (sc->sc_flags & RDF_WLABEL) ? 0 1169 : sc->sc_dkdev.dk_openmask, 1170 (struct cpu_disklabel *)0); 1171 if (error) 1172 return (error); 1173 flags = sc->sc_flags; 1174 sc->sc_flags = RDF_ALIVE | RDF_WLABEL; 1175 error = writedisklabel(rdlabdev(dev), rdstrategy, lp, 1176 (struct cpu_disklabel *)0); 1177 sc->sc_flags = flags; 1178 return (error); 1179 } 1180 return(EINVAL); 1181 } 1182 1183 int 1184 rdsize(dev) 1185 dev_t dev; 1186 { 1187 int unit = rdunit(dev); 1188 struct rd_softc *rs; 1189 int psize, didopen = 0; 1190 1191 if (unit >= rd_cd.cd_ndevs || 1192 (rs = rd_cd.cd_devs[unit]) == NULL || 1193 (rs->sc_flags & RDF_ALIVE) == 0) 1194 return (-1); 1195 1196 /* 1197 * We get called very early on (via swapconf) 1198 * without the device being open so we may need 1199 * to handle it here. 1200 */ 1201 if (rs->sc_dkdev.dk_openmask == 0) { 1202 if (rdopen(dev, FREAD|FWRITE, S_IFBLK, NULL)) 1203 return(-1); 1204 didopen = 1; 1205 } 1206 psize = rs->sc_dkdev.dk_label->d_partitions[rdpart(dev)].p_size * 1207 (rs->sc_dkdev.dk_label->d_secsize / DEV_BSIZE); 1208 if (didopen) 1209 (void) rdclose(dev, FREAD|FWRITE, S_IFBLK, NULL); 1210 return (psize); 1211 } 1212 1213 #ifdef DEBUG 1214 void 1215 rdprinterr(str, err, tab) 1216 char *str; 1217 short err; 1218 char **tab; 1219 { 1220 int i; 1221 int printed; 1222 1223 if (err == 0) 1224 return; 1225 printf(" %s error %d field:", str, err); 1226 printed = 0; 1227 for (i = 0; i < 16; i++) 1228 if (err & (0x8000 >> i)) 1229 printf("%s%s", printed++ ? " + " : " ", tab[i]); 1230 printf("\n"); 1231 } 1232 #endif 1233 1234 static int rddoingadump; /* simple mutex */ 1235 1236 /* 1237 * Non-interrupt driven, non-dma dump routine. 1238 */ 1239 int 1240 rddump(dev, blkno, va, size) 1241 dev_t dev; 1242 daddr_t blkno; 1243 caddr_t va; 1244 size_t size; 1245 { 1246 int sectorsize; /* size of a disk sector */ 1247 int nsects; /* number of sectors in partition */ 1248 int sectoff; /* sector offset of partition */ 1249 int totwrt; /* total number of sectors left to write */ 1250 int nwrt; /* current number of sectors to write */ 1251 int unit, part; 1252 int ctlr, slave; 1253 struct rd_softc *rs; 1254 struct disklabel *lp; 1255 char stat; 1256 1257 /* Check for recursive dump; if so, punt. */ 1258 if (rddoingadump) 1259 return (EFAULT); 1260 rddoingadump = 1; 1261 1262 /* Decompose unit and partition. */ 1263 unit = rdunit(dev); 1264 part = rdpart(dev); 1265 1266 /* Make sure dump device is ok. */ 1267 if (unit >= rd_cd.cd_ndevs || 1268 (rs = rd_cd.cd_devs[unit]) == NULL || 1269 (rs->sc_flags & RDF_ALIVE) == 0) 1270 return (ENXIO); 1271 1272 ctlr = rs->sc_dev.dv_parent->dv_unit; 1273 slave = rs->sc_slave; 1274 1275 /* 1276 * Convert to disk sectors. Request must be a multiple of size. 1277 */ 1278 lp = rs->sc_dkdev.dk_label; 1279 sectorsize = lp->d_secsize; 1280 if ((size % sectorsize) != 0) 1281 return (EFAULT); 1282 totwrt = size / sectorsize; 1283 blkno = dbtob(blkno) / sectorsize; /* blkno in DEV_BSIZE units */ 1284 1285 nsects = lp->d_partitions[part].p_size; 1286 sectoff = lp->d_partitions[part].p_offset; 1287 1288 /* Check transfer bounds against partition size. */ 1289 if ((blkno < 0) || (blkno + totwrt) > nsects) 1290 return (EINVAL); 1291 1292 /* Offset block number to start of partition. */ 1293 blkno += sectoff; 1294 1295 while (totwrt > 0) { 1296 nwrt = totwrt; /* XXX */ 1297 #ifndef RD_DUMP_NOT_TRUSTED 1298 /* 1299 * Fill out and send HPIB command. 1300 */ 1301 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 1302 rs->sc_ioc.c_volume = C_SVOL(0); 1303 rs->sc_ioc.c_saddr = C_SADDR; 1304 rs->sc_ioc.c_hiaddr = 0; 1305 rs->sc_ioc.c_addr = RDBTOS(blkno); 1306 rs->sc_ioc.c_nop2 = C_NOP; 1307 rs->sc_ioc.c_slen = C_SLEN; 1308 rs->sc_ioc.c_len = nwrt * sectorsize; 1309 rs->sc_ioc.c_cmd = C_WRITE; 1310 hpibsend(ctlr, slave, C_CMD, &rs->sc_ioc.c_unit, 1311 sizeof(rs->sc_ioc)-2); 1312 if (hpibswait(ctlr, slave)) 1313 return (EIO); 1314 1315 /* 1316 * Send the data. 1317 */ 1318 hpibsend(ctlr, slave, C_EXEC, va, nwrt * sectorsize); 1319 (void) hpibswait(ctlr, slave); 1320 hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 1321 if (stat) 1322 return (EIO); 1323 #else /* RD_DUMP_NOT_TRUSTED */ 1324 /* Let's just talk about this first... */ 1325 printf("%s: dump addr %p, blk %d\n", sc->sc_dev.dv_xname, 1326 va, blkno); 1327 delay(500 * 1000); /* half a second */ 1328 #endif /* RD_DUMP_NOT_TRUSTED */ 1329 1330 /* update block count */ 1331 totwrt -= nwrt; 1332 blkno += nwrt; 1333 va += sectorsize * nwrt; 1334 } 1335 rddoingadump = 0; 1336 return (0); 1337 } 1338