rd.c revision 1.50
1 /* $NetBSD: rd.c,v 1.50 2002/07/26 13:19:53 hannken 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/cdefs.h> 86 __KERNEL_RCSID(0, "$NetBSD: rd.c,v 1.50 2002/07/26 13:19:53 hannken Exp $"); 87 88 #include "opt_useleds.h" 89 #include "rnd.h" 90 91 #include <sys/param.h> 92 #include <sys/systm.h> 93 #include <sys/buf.h> 94 #include <sys/conf.h> 95 #include <sys/device.h> 96 #include <sys/disk.h> 97 #include <sys/disklabel.h> 98 #include <sys/fcntl.h> 99 #include <sys/ioctl.h> 100 #include <sys/proc.h> 101 #include <sys/stat.h> 102 103 #if NRND > 0 104 #include <sys/rnd.h> 105 #endif 106 107 #include <hp300/dev/hpibvar.h> 108 109 #include <hp300/dev/rdreg.h> 110 #include <hp300/dev/rdvar.h> 111 112 #ifdef USELEDS 113 #include <hp300/hp300/leds.h> 114 #endif 115 116 int rderrthresh = RDRETRY-1; /* when to start reporting errors */ 117 118 #ifdef DEBUG 119 /* error message tables */ 120 char *err_reject[] = { 121 0, 0, 122 "channel parity error", /* 0x2000 */ 123 0, 0, 124 "illegal opcode", /* 0x0400 */ 125 "module addressing", /* 0x0200 */ 126 "address bounds", /* 0x0100 */ 127 "parameter bounds", /* 0x0080 */ 128 "illegal parameter", /* 0x0040 */ 129 "message sequence", /* 0x0020 */ 130 0, 131 "message length", /* 0x0008 */ 132 0, 0, 0 133 }; 134 135 char *err_fault[] = { 136 0, 137 "cross unit", /* 0x4000 */ 138 0, 139 "controller fault", /* 0x1000 */ 140 0, 0, 141 "unit fault", /* 0x0200 */ 142 0, 143 "diagnostic result", /* 0x0080 */ 144 0, 145 "operator release request", /* 0x0020 */ 146 "diagnostic release request", /* 0x0010 */ 147 "internal maintenance release request", /* 0x0008 */ 148 0, 149 "power fail", /* 0x0002 */ 150 "retransmit" /* 0x0001 */ 151 }; 152 153 char *err_access[] = { 154 "illegal parallel operation", /* 0x8000 */ 155 "uninitialized media", /* 0x4000 */ 156 "no spares available", /* 0x2000 */ 157 "not ready", /* 0x1000 */ 158 "write protect", /* 0x0800 */ 159 "no data found", /* 0x0400 */ 160 0, 0, 161 "unrecoverable data overflow", /* 0x0080 */ 162 "unrecoverable data", /* 0x0040 */ 163 0, 164 "end of file", /* 0x0010 */ 165 "end of volume", /* 0x0008 */ 166 0, 0, 0 167 }; 168 169 char *err_info[] = { 170 "operator release request", /* 0x8000 */ 171 "diagnostic release request", /* 0x4000 */ 172 "internal maintenance release request", /* 0x2000 */ 173 "media wear", /* 0x1000 */ 174 "latency induced", /* 0x0800 */ 175 0, 0, 176 "auto sparing invoked", /* 0x0100 */ 177 0, 178 "recoverable data overflow", /* 0x0040 */ 179 "marginal data", /* 0x0020 */ 180 "recoverable data", /* 0x0010 */ 181 0, 182 "maintenance track overflow", /* 0x0004 */ 183 0, 0 184 }; 185 186 int rddebug = 0x80; 187 #define RDB_FOLLOW 0x01 188 #define RDB_STATUS 0x02 189 #define RDB_IDENT 0x04 190 #define RDB_IO 0x08 191 #define RDB_ASYNC 0x10 192 #define RDB_ERROR 0x80 193 #endif 194 195 /* 196 * Misc. HW description, indexed by sc_type. 197 * Nothing really critical here, could do without it. 198 */ 199 struct rdidentinfo rdidentinfo[] = { 200 { RD7946AID, 0, "7945A", NRD7945ABPT, 201 NRD7945ATRK, 968, 108416 }, 202 203 { RD9134DID, 1, "9134D", NRD9134DBPT, 204 NRD9134DTRK, 303, 29088 }, 205 206 { RD9134LID, 1, "9122S", NRD9122SBPT, 207 NRD9122STRK, 77, 1232 }, 208 209 { RD7912PID, 0, "7912P", NRD7912PBPT, 210 NRD7912PTRK, 572, 128128 }, 211 212 { RD7914PID, 0, "7914P", NRD7914PBPT, 213 NRD7914PTRK, 1152, 258048 }, 214 215 { RD7958AID, 0, "7958A", NRD7958ABPT, 216 NRD7958ATRK, 1013, 255276 }, 217 218 { RD7957AID, 0, "7957A", NRD7957ABPT, 219 NRD7957ATRK, 1036, 159544 }, 220 221 { RD7933HID, 0, "7933H", NRD7933HBPT, 222 NRD7933HTRK, 1321, 789958 }, 223 224 { RD9134LID, 1, "9134L", NRD9134LBPT, 225 NRD9134LTRK, 973, 77840 }, 226 227 { RD7936HID, 0, "7936H", NRD7936HBPT, 228 NRD7936HTRK, 698, 600978 }, 229 230 { RD7937HID, 0, "7937H", NRD7937HBPT, 231 NRD7937HTRK, 698, 1116102 }, 232 233 { RD7914CTID, 0, "7914CT", NRD7914PBPT, 234 NRD7914PTRK, 1152, 258048 }, 235 236 { RD7946AID, 0, "7946A", NRD7945ABPT, 237 NRD7945ATRK, 968, 108416 }, 238 239 { RD9134LID, 1, "9122D", NRD9122SBPT, 240 NRD9122STRK, 77, 1232 }, 241 242 { RD7957BID, 0, "7957B", NRD7957BBPT, 243 NRD7957BTRK, 1269, 159894 }, 244 245 { RD7958BID, 0, "7958B", NRD7958BBPT, 246 NRD7958BTRK, 786, 297108 }, 247 248 { RD7959BID, 0, "7959B", NRD7959BBPT, 249 NRD7959BTRK, 1572, 594216 }, 250 251 { RD2200AID, 0, "2200A", NRD2200ABPT, 252 NRD2200ATRK, 1449, 654948 }, 253 254 { RD2203AID, 0, "2203A", NRD2203ABPT, 255 NRD2203ATRK, 1449, 1309896 } 256 }; 257 int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]); 258 259 bdev_decl(rd); 260 cdev_decl(rd); 261 262 int rdident __P((struct device *, struct rd_softc *, 263 struct hpibbus_attach_args *)); 264 void rdreset __P((struct rd_softc *)); 265 void rdustart __P((struct rd_softc *)); 266 int rdgetinfo __P((dev_t)); 267 void rdrestart __P((void *)); 268 struct buf *rdfinish __P((struct rd_softc *, struct buf *)); 269 270 void rdgetdefaultlabel __P((struct rd_softc *, struct disklabel *)); 271 void rdrestart __P((void *)); 272 void rdustart __P((struct rd_softc *)); 273 struct buf *rdfinish __P((struct rd_softc *, struct buf *)); 274 void rdstart __P((void *)); 275 void rdgo __P((void *)); 276 void rdintr __P((void *)); 277 int rdstatus __P((struct rd_softc *)); 278 int rderror __P((int)); 279 #ifdef DEBUG 280 void rdprinterr __P((char *, short, char **)); 281 #endif 282 283 int rdmatch __P((struct device *, struct cfdata *, void *)); 284 void rdattach __P((struct device *, struct device *, void *)); 285 286 struct cfattach rd_ca = { 287 sizeof(struct rd_softc), rdmatch, rdattach 288 }; 289 290 extern struct cfdriver rd_cd; 291 292 int 293 rdmatch(parent, match, aux) 294 struct device *parent; 295 struct cfdata *match; 296 void *aux; 297 { 298 struct hpibbus_attach_args *ha = aux; 299 300 /* 301 * Set punit if operator specified one in the kernel 302 * configuration file. 303 */ 304 if (match->hpibbuscf_punit != HPIBBUSCF_PUNIT_DEFAULT && 305 match->hpibbuscf_punit < HPIB_NPUNITS) 306 ha->ha_punit = match->hpibbuscf_punit; 307 308 if (rdident(parent, NULL, ha) == 0) { 309 /* 310 * XXX Some aging HP-IB drives are slow to 311 * XXX respond; give them a chance to catch 312 * XXX up and probe them again. 313 */ 314 delay(10000); 315 ha->ha_id = hpibid(parent->dv_unit, ha->ha_slave); 316 return (rdident(parent, NULL, ha)); 317 } 318 return (1); 319 } 320 321 void 322 rdattach(parent, self, aux) 323 struct device *parent, *self; 324 void *aux; 325 { 326 struct rd_softc *sc = (struct rd_softc *)self; 327 struct hpibbus_attach_args *ha = aux; 328 329 bufq_alloc(&sc->sc_tab, BUFQ_DISKSORT|BUFQ_SORT_RAWBLOCK); 330 331 if (rdident(parent, sc, ha) == 0) { 332 printf("\n%s: didn't respond to describe command!\n", 333 sc->sc_dev.dv_xname); 334 return; 335 } 336 337 /* 338 * Initialize and attach the disk structure. 339 */ 340 memset(&sc->sc_dkdev, 0, sizeof(sc->sc_dkdev)); 341 sc->sc_dkdev.dk_name = sc->sc_dev.dv_xname; 342 disk_attach(&sc->sc_dkdev); 343 344 sc->sc_slave = ha->ha_slave; 345 sc->sc_punit = ha->ha_punit; 346 347 callout_init(&sc->sc_restart_ch); 348 349 /* Initialize the hpib job queue entry */ 350 sc->sc_hq.hq_softc = sc; 351 sc->sc_hq.hq_slave = sc->sc_slave; 352 sc->sc_hq.hq_start = rdstart; 353 sc->sc_hq.hq_go = rdgo; 354 sc->sc_hq.hq_intr = rdintr; 355 356 sc->sc_flags = RDF_ALIVE; 357 #ifdef DEBUG 358 /* always report errors */ 359 if (rddebug & RDB_ERROR) 360 rderrthresh = 0; 361 #endif 362 #if NRND > 0 363 /* 364 * attach the device into the random source list 365 */ 366 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, 367 RND_TYPE_DISK, 0); 368 #endif 369 } 370 371 int 372 rdident(parent, sc, ha) 373 struct device *parent; 374 struct rd_softc *sc; 375 struct hpibbus_attach_args *ha; 376 { 377 struct rd_describe *desc = sc != NULL ? &sc->sc_rddesc : NULL; 378 u_char stat, cmd[3]; 379 char name[7]; 380 int i, id, n, ctlr, slave; 381 382 ctlr = parent->dv_unit; 383 slave = ha->ha_slave; 384 385 /* Verify that we have a CS80 device. */ 386 if ((ha->ha_id & 0x200) == 0) 387 return (0); 388 389 /* Is it one of the disks we support? */ 390 for (id = 0; id < numrdidentinfo; id++) 391 if (ha->ha_id == rdidentinfo[id].ri_hwid) 392 break; 393 if (id == numrdidentinfo || ha->ha_punit > rdidentinfo[id].ri_maxunum) 394 return (0); 395 396 /* 397 * If we're just probing for the device, that's all the 398 * work we need to do. 399 */ 400 if (sc == NULL) 401 return (1); 402 403 /* 404 * Reset device and collect description 405 */ 406 rdreset(sc); 407 cmd[0] = C_SUNIT(ha->ha_punit); 408 cmd[1] = C_SVOL(0); 409 cmd[2] = C_DESC; 410 hpibsend(ctlr, slave, C_CMD, cmd, sizeof(cmd)); 411 hpibrecv(ctlr, slave, C_EXEC, desc, 37); 412 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 413 memset(name, 0, sizeof(name)); 414 if (stat == 0) { 415 n = desc->d_name; 416 for (i = 5; i >= 0; i--) { 417 name[i] = (n & 0xf) + '0'; 418 n >>= 4; 419 } 420 } 421 422 #ifdef DEBUG 423 if (rddebug & RDB_IDENT) { 424 printf("\n%s: name: %x ('%s')\n", 425 sc->sc_dev.dv_xname, desc->d_name, name); 426 printf(" iuw %x, maxxfr %d, ctype %d\n", 427 desc->d_iuw, desc->d_cmaxxfr, desc->d_ctype); 428 printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n", 429 desc->d_utype, desc->d_sectsize, 430 desc->d_blkbuf, desc->d_burstsize, desc->d_blocktime); 431 printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n", 432 desc->d_uavexfr, desc->d_retry, desc->d_access, 433 desc->d_maxint, desc->d_fvbyte, desc->d_rvbyte); 434 printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n", 435 desc->d_maxcyl, desc->d_maxhead, desc->d_maxsect, 436 desc->d_maxvsectl, desc->d_interleave); 437 printf("%s", sc->sc_dev.dv_xname); 438 } 439 #endif 440 441 /* 442 * Take care of a couple of anomolies: 443 * 1. 7945A and 7946A both return same HW id 444 * 2. 9122S and 9134D both return same HW id 445 * 3. 9122D and 9134L both return same HW id 446 */ 447 switch (ha->ha_id) { 448 case RD7946AID: 449 if (memcmp(name, "079450", 6) == 0) 450 id = RD7945A; 451 else 452 id = RD7946A; 453 break; 454 455 case RD9134LID: 456 if (memcmp(name, "091340", 6) == 0) 457 id = RD9134L; 458 else 459 id = RD9122D; 460 break; 461 462 case RD9134DID: 463 if (memcmp(name, "091220", 6) == 0) 464 id = RD9122S; 465 else 466 id = RD9134D; 467 break; 468 } 469 470 sc->sc_type = id; 471 472 /* 473 * XXX We use DEV_BSIZE instead of the sector size value pulled 474 * XXX off the driver because all of this code assumes 512 byte 475 * XXX blocks. ICK! 476 */ 477 printf(": %s\n", rdidentinfo[id].ri_desc); 478 printf("%s: %d cylinders, %d heads, %d blocks, %d bytes/block\n", 479 sc->sc_dev.dv_xname, rdidentinfo[id].ri_ncyl, 480 rdidentinfo[id].ri_ntpc, rdidentinfo[id].ri_nblocks, 481 DEV_BSIZE); 482 483 return (1); 484 } 485 486 void 487 rdreset(rs) 488 struct rd_softc *rs; 489 { 490 int ctlr = rs->sc_dev.dv_parent->dv_unit; 491 int slave = rs->sc_slave; 492 u_char stat; 493 494 rs->sc_clear.c_unit = C_SUNIT(rs->sc_punit); 495 rs->sc_clear.c_cmd = C_CLEAR; 496 hpibsend(ctlr, slave, C_TCMD, &rs->sc_clear, sizeof(rs->sc_clear)); 497 hpibswait(ctlr, slave); 498 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 499 500 rs->sc_src.c_unit = C_SUNIT(RDCTLR); 501 rs->sc_src.c_nop = C_NOP; 502 rs->sc_src.c_cmd = C_SREL; 503 rs->sc_src.c_param = C_REL; 504 hpibsend(ctlr, slave, C_CMD, &rs->sc_src, sizeof(rs->sc_src)); 505 hpibswait(ctlr, slave); 506 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 507 508 rs->sc_ssmc.c_unit = C_SUNIT(rs->sc_punit); 509 rs->sc_ssmc.c_cmd = C_SSM; 510 rs->sc_ssmc.c_refm = REF_MASK; 511 rs->sc_ssmc.c_fefm = FEF_MASK; 512 rs->sc_ssmc.c_aefm = AEF_MASK; 513 rs->sc_ssmc.c_iefm = IEF_MASK; 514 hpibsend(ctlr, slave, C_CMD, &rs->sc_ssmc, sizeof(rs->sc_ssmc)); 515 hpibswait(ctlr, slave); 516 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 517 #ifdef DEBUG 518 rs->sc_stats.rdresets++; 519 #endif 520 } 521 522 /* 523 * Read or constuct a disklabel 524 */ 525 int 526 rdgetinfo(dev) 527 dev_t dev; 528 { 529 int unit = rdunit(dev); 530 struct rd_softc *rs = rd_cd.cd_devs[unit]; 531 struct disklabel *lp = rs->sc_dkdev.dk_label; 532 struct partition *pi; 533 char *msg; 534 535 /* 536 * Set some default values to use while reading the label 537 * or to use if there isn't a label. 538 */ 539 memset((caddr_t)lp, 0, sizeof *lp); 540 rdgetdefaultlabel(rs, lp); 541 542 /* 543 * Now try to read the disklabel 544 */ 545 msg = readdisklabel(rdlabdev(dev), rdstrategy, lp, NULL); 546 if (msg == NULL) 547 return (0); 548 549 pi = lp->d_partitions; 550 printf("%s: WARNING: %s, ", rs->sc_dev.dv_xname, msg); 551 #ifdef COMPAT_NOLABEL 552 printf("using old default partitioning\n"); 553 rdmakedisklabel(unit, lp); 554 #else 555 printf("defining `c' partition as entire disk\n"); 556 pi[2].p_size = rdidentinfo[rs->sc_type].ri_nblocks; 557 /* XXX reset other info since readdisklabel screws with it */ 558 lp->d_npartitions = 3; 559 pi[0].p_size = 0; 560 #endif 561 return(0); 562 } 563 564 int 565 rdopen(dev, flags, mode, p) 566 dev_t dev; 567 int flags, mode; 568 struct proc *p; 569 { 570 int unit = rdunit(dev); 571 struct rd_softc *rs; 572 int error, mask, part; 573 574 if (unit >= rd_cd.cd_ndevs || 575 (rs = rd_cd.cd_devs[unit]) == NULL || 576 (rs->sc_flags & RDF_ALIVE) == 0) 577 return (ENXIO); 578 579 /* 580 * Wait for any pending opens/closes to complete 581 */ 582 while (rs->sc_flags & (RDF_OPENING|RDF_CLOSING)) 583 (void) tsleep(rs, PRIBIO, "rdopen", 0); 584 585 /* 586 * On first open, get label and partition info. 587 * We may block reading the label, so be careful 588 * to stop any other opens. 589 */ 590 if (rs->sc_dkdev.dk_openmask == 0) { 591 rs->sc_flags |= RDF_OPENING; 592 error = rdgetinfo(dev); 593 rs->sc_flags &= ~RDF_OPENING; 594 wakeup((caddr_t)rs); 595 if (error) 596 return(error); 597 } 598 599 part = rdpart(dev); 600 mask = 1 << part; 601 602 /* Check that the partition exists. */ 603 if (part != RAW_PART && 604 (part > rs->sc_dkdev.dk_label->d_npartitions || 605 rs->sc_dkdev.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) 606 return (ENXIO); 607 608 /* Ensure only one open at a time. */ 609 switch (mode) { 610 case S_IFCHR: 611 rs->sc_dkdev.dk_copenmask |= mask; 612 break; 613 case S_IFBLK: 614 rs->sc_dkdev.dk_bopenmask |= mask; 615 break; 616 } 617 rs->sc_dkdev.dk_openmask = 618 rs->sc_dkdev.dk_copenmask | rs->sc_dkdev.dk_bopenmask; 619 620 return(0); 621 } 622 623 int 624 rdclose(dev, flag, mode, p) 625 dev_t dev; 626 int flag, mode; 627 struct proc *p; 628 { 629 int unit = rdunit(dev); 630 struct rd_softc *rs = rd_cd.cd_devs[unit]; 631 struct disk *dk = &rs->sc_dkdev; 632 int mask, s; 633 634 mask = 1 << rdpart(dev); 635 if (mode == S_IFCHR) 636 dk->dk_copenmask &= ~mask; 637 else 638 dk->dk_bopenmask &= ~mask; 639 dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; 640 /* 641 * On last close, we wait for all activity to cease since 642 * the label/parition info will become invalid. Since we 643 * might sleep, we must block any opens while we are here. 644 * Note we don't have to about other closes since we know 645 * we are the last one. 646 */ 647 if (dk->dk_openmask == 0) { 648 rs->sc_flags |= RDF_CLOSING; 649 s = splbio(); 650 while (rs->sc_active) { 651 rs->sc_flags |= RDF_WANTED; 652 (void) tsleep(&rs->sc_tab, PRIBIO, "rdclose", 0); 653 } 654 splx(s); 655 rs->sc_flags &= ~(RDF_CLOSING|RDF_WLABEL); 656 wakeup((caddr_t)rs); 657 } 658 return(0); 659 } 660 661 void 662 rdstrategy(bp) 663 struct buf *bp; 664 { 665 int unit = rdunit(bp->b_dev); 666 struct rd_softc *rs = rd_cd.cd_devs[unit]; 667 struct partition *pinfo; 668 daddr_t bn; 669 int sz, s; 670 int offset; 671 672 #ifdef DEBUG 673 if (rddebug & RDB_FOLLOW) 674 printf("rdstrategy(%p): dev %x, bn %x, bcount %lx, %c\n", 675 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 676 (bp->b_flags & B_READ) ? 'R' : 'W'); 677 #endif 678 bn = bp->b_blkno; 679 sz = howmany(bp->b_bcount, DEV_BSIZE); 680 pinfo = &rs->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)]; 681 682 /* Don't perform partition translation on RAW_PART. */ 683 offset = (rdpart(bp->b_dev) == RAW_PART) ? 0 : pinfo->p_offset; 684 685 if (rdpart(bp->b_dev) != RAW_PART) { 686 /* 687 * XXX This block of code belongs in 688 * XXX bounds_check_with_label() 689 */ 690 691 if (bn < 0 || bn + sz > pinfo->p_size) { 692 sz = pinfo->p_size - bn; 693 if (sz == 0) { 694 bp->b_resid = bp->b_bcount; 695 goto done; 696 } 697 if (sz < 0) { 698 bp->b_error = EINVAL; 699 goto bad; 700 } 701 bp->b_bcount = dbtob(sz); 702 } 703 /* 704 * Check for write to write protected label 705 */ 706 if (bn + offset <= LABELSECTOR && 707 #if LABELSECTOR != 0 708 bn + offset + sz > LABELSECTOR && 709 #endif 710 !(bp->b_flags & B_READ) && !(rs->sc_flags & RDF_WLABEL)) { 711 bp->b_error = EROFS; 712 goto bad; 713 } 714 } 715 bp->b_rawblkno = bn + offset; 716 s = splbio(); 717 BUFQ_PUT(&rs->sc_tab, bp); 718 if (rs->sc_active == 0) { 719 rs->sc_active = 1; 720 rdustart(rs); 721 } 722 splx(s); 723 return; 724 bad: 725 bp->b_flags |= B_ERROR; 726 done: 727 biodone(bp); 728 } 729 730 /* 731 * Called from timeout() when handling maintenance releases 732 */ 733 void 734 rdrestart(arg) 735 void *arg; 736 { 737 int s = splbio(); 738 rdustart((struct rd_softc *)arg); 739 splx(s); 740 } 741 742 void 743 rdustart(rs) 744 struct rd_softc *rs; 745 { 746 struct buf *bp; 747 748 bp = BUFQ_PEEK(&rs->sc_tab); 749 rs->sc_addr = bp->b_data; 750 rs->sc_resid = bp->b_bcount; 751 if (hpibreq(rs->sc_dev.dv_parent, &rs->sc_hq)) 752 rdstart(rs); 753 } 754 755 struct buf * 756 rdfinish(rs, bp) 757 struct rd_softc *rs; 758 struct buf *bp; 759 { 760 761 rs->sc_errcnt = 0; 762 (void)BUFQ_GET(&rs->sc_tab); 763 bp->b_resid = 0; 764 biodone(bp); 765 hpibfree(rs->sc_dev.dv_parent, &rs->sc_hq); 766 if ((bp = BUFQ_PEEK(&rs->sc_tab)) != NULL) 767 return (bp); 768 rs->sc_active = 0; 769 if (rs->sc_flags & RDF_WANTED) { 770 rs->sc_flags &= ~RDF_WANTED; 771 wakeup((caddr_t)&rs->sc_tab); 772 } 773 return (NULL); 774 } 775 776 void 777 rdstart(arg) 778 void *arg; 779 { 780 struct rd_softc *rs = arg; 781 struct buf *bp = BUFQ_PEEK(&rs->sc_tab); 782 int part, ctlr, slave; 783 784 ctlr = rs->sc_dev.dv_parent->dv_unit; 785 slave = rs->sc_slave; 786 787 again: 788 #ifdef DEBUG 789 if (rddebug & RDB_FOLLOW) 790 printf("rdstart(%s): bp %p, %c\n", rs->sc_dev.dv_xname, bp, 791 (bp->b_flags & B_READ) ? 'R' : 'W'); 792 #endif 793 part = rdpart(bp->b_dev); 794 rs->sc_flags |= RDF_SEEK; 795 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 796 rs->sc_ioc.c_volume = C_SVOL(0); 797 rs->sc_ioc.c_saddr = C_SADDR; 798 rs->sc_ioc.c_hiaddr = 0; 799 rs->sc_ioc.c_addr = RDBTOS(bp->b_rawblkno); 800 rs->sc_ioc.c_nop2 = C_NOP; 801 rs->sc_ioc.c_slen = C_SLEN; 802 rs->sc_ioc.c_len = rs->sc_resid; 803 rs->sc_ioc.c_cmd = bp->b_flags & B_READ ? C_READ : C_WRITE; 804 #ifdef DEBUG 805 if (rddebug & RDB_IO) 806 printf("rdstart: hpibsend(%x, %x, %x, %p, %x)\n", 807 ctlr, slave, C_CMD, 808 &rs->sc_ioc.c_unit, sizeof(rs->sc_ioc)-2); 809 #endif 810 if (hpibsend(ctlr, slave, C_CMD, &rs->sc_ioc.c_unit, 811 sizeof(rs->sc_ioc)-2) == sizeof(rs->sc_ioc)-2) { 812 813 /* Instrumentation. */ 814 disk_busy(&rs->sc_dkdev); 815 rs->sc_dkdev.dk_seek++; 816 817 #ifdef DEBUG 818 if (rddebug & RDB_IO) 819 printf("rdstart: hpibawait(%x)\n", ctlr); 820 #endif 821 hpibawait(ctlr); 822 return; 823 } 824 /* 825 * Experience has shown that the hpibwait in this hpibsend will 826 * occasionally timeout. It appears to occur mostly on old 7914 827 * drives with full maintenance tracks. We should probably 828 * integrate this with the backoff code in rderror. 829 */ 830 #ifdef DEBUG 831 if (rddebug & RDB_ERROR) 832 printf("%s: rdstart: cmd %x adr %lx blk %d len %d ecnt %d\n", 833 rs->sc_dev.dv_xname, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 834 bp->b_blkno, rs->sc_resid, rs->sc_errcnt); 835 rs->sc_stats.rdretries++; 836 #endif 837 rs->sc_flags &= ~RDF_SEEK; 838 rdreset(rs); 839 if (rs->sc_errcnt++ < RDRETRY) 840 goto again; 841 printf("%s: rdstart err: cmd 0x%x sect %ld blk %d len %d\n", 842 rs->sc_dev.dv_xname, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 843 bp->b_blkno, rs->sc_resid); 844 bp->b_flags |= B_ERROR; 845 bp->b_error = EIO; 846 bp = rdfinish(rs, bp); 847 if (bp) { 848 rs->sc_addr = bp->b_data; 849 rs->sc_resid = bp->b_bcount; 850 if (hpibreq(rs->sc_dev.dv_parent, &rs->sc_hq)) 851 goto again; 852 } 853 } 854 855 void 856 rdgo(arg) 857 void *arg; 858 { 859 struct rd_softc *rs = arg; 860 struct buf *bp = BUFQ_PEEK(&rs->sc_tab); 861 int rw, ctlr, slave; 862 863 ctlr = rs->sc_dev.dv_parent->dv_unit; 864 slave = rs->sc_slave; 865 866 rw = bp->b_flags & B_READ; 867 868 /* Instrumentation. */ 869 disk_busy(&rs->sc_dkdev); 870 871 #ifdef USELEDS 872 ledcontrol(0, 0, LED_DISK); 873 #endif 874 hpibgo(ctlr, slave, C_EXEC, rs->sc_addr, rs->sc_resid, rw, rw != 0); 875 } 876 877 /* ARGSUSED */ 878 void 879 rdintr(arg) 880 void *arg; 881 { 882 struct rd_softc *rs = arg; 883 int unit = rs->sc_dev.dv_unit; 884 struct buf *bp = BUFQ_PEEK(&rs->sc_tab); 885 u_char stat = 13; /* in case hpibrecv fails */ 886 int rv, restart, ctlr, slave; 887 888 ctlr = rs->sc_dev.dv_parent->dv_unit; 889 slave = rs->sc_slave; 890 891 #ifdef DEBUG 892 if (rddebug & RDB_FOLLOW) 893 printf("rdintr(%d): bp %p, %c, flags %x\n", unit, bp, 894 (bp->b_flags & B_READ) ? 'R' : 'W', rs->sc_flags); 895 if (bp == NULL) { 896 printf("%s: bp == NULL\n", rs->sc_dev.dv_xname); 897 return; 898 } 899 #endif 900 disk_unbusy(&rs->sc_dkdev, (bp->b_bcount - bp->b_resid)); 901 902 if (rs->sc_flags & RDF_SEEK) { 903 rs->sc_flags &= ~RDF_SEEK; 904 if (hpibustart(ctlr)) 905 rdgo(rs); 906 return; 907 } 908 if ((rs->sc_flags & RDF_SWAIT) == 0) { 909 #ifdef DEBUG 910 rs->sc_stats.rdpolltries++; 911 #endif 912 if (hpibpptest(ctlr, slave) == 0) { 913 #ifdef DEBUG 914 rs->sc_stats.rdpollwaits++; 915 #endif 916 917 /* Instrumentation. */ 918 disk_busy(&rs->sc_dkdev); 919 rs->sc_flags |= RDF_SWAIT; 920 hpibawait(ctlr); 921 return; 922 } 923 } else 924 rs->sc_flags &= ~RDF_SWAIT; 925 rv = hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 926 if (rv != 1 || stat) { 927 #ifdef DEBUG 928 if (rddebug & RDB_ERROR) 929 printf("rdintr: recv failed or bad stat %d\n", stat); 930 #endif 931 restart = rderror(unit); 932 #ifdef DEBUG 933 rs->sc_stats.rdretries++; 934 #endif 935 if (rs->sc_errcnt++ < RDRETRY) { 936 if (restart) 937 rdstart(rs); 938 return; 939 } 940 bp->b_flags |= B_ERROR; 941 bp->b_error = EIO; 942 } 943 if (rdfinish(rs, bp)) 944 rdustart(rs); 945 #if NRND > 0 946 rnd_add_uint32(&rs->rnd_source, bp->b_blkno); 947 #endif 948 } 949 950 int 951 rdstatus(rs) 952 struct rd_softc *rs; 953 { 954 int c, s; 955 u_char stat; 956 int rv; 957 958 c = rs->sc_dev.dv_parent->dv_unit; 959 s = rs->sc_slave; 960 rs->sc_rsc.c_unit = C_SUNIT(rs->sc_punit); 961 rs->sc_rsc.c_sram = C_SRAM; 962 rs->sc_rsc.c_ram = C_RAM; 963 rs->sc_rsc.c_cmd = C_STATUS; 964 memset((caddr_t)&rs->sc_stat, 0, sizeof(rs->sc_stat)); 965 rv = hpibsend(c, s, C_CMD, &rs->sc_rsc, sizeof(rs->sc_rsc)); 966 if (rv != sizeof(rs->sc_rsc)) { 967 #ifdef DEBUG 968 if (rddebug & RDB_STATUS) 969 printf("rdstatus: send C_CMD failed %d != %d\n", 970 rv, sizeof(rs->sc_rsc)); 971 #endif 972 return(1); 973 } 974 rv = hpibrecv(c, s, C_EXEC, &rs->sc_stat, sizeof(rs->sc_stat)); 975 if (rv != sizeof(rs->sc_stat)) { 976 #ifdef DEBUG 977 if (rddebug & RDB_STATUS) 978 printf("rdstatus: send C_EXEC failed %d != %d\n", 979 rv, sizeof(rs->sc_stat)); 980 #endif 981 return(1); 982 } 983 rv = hpibrecv(c, s, C_QSTAT, &stat, 1); 984 if (rv != 1 || stat) { 985 #ifdef DEBUG 986 if (rddebug & RDB_STATUS) 987 printf("rdstatus: recv failed %d or bad stat %d\n", 988 rv, stat); 989 #endif 990 return(1); 991 } 992 return(0); 993 } 994 995 /* 996 * Deal with errors. 997 * Returns 1 if request should be restarted, 998 * 0 if we should just quietly give up. 999 */ 1000 int 1001 rderror(unit) 1002 int unit; 1003 { 1004 struct rd_softc *rs = rd_cd.cd_devs[unit]; 1005 struct rd_stat *sp; 1006 struct buf *bp; 1007 daddr_t hwbn, pbn; 1008 char *hexstr __P((int, int)); /* XXX */ 1009 1010 if (rdstatus(rs)) { 1011 #ifdef DEBUG 1012 printf("%s: couldn't get status\n", rs->sc_dev.dv_xname); 1013 #endif 1014 rdreset(rs); 1015 return(1); 1016 } 1017 sp = &rs->sc_stat; 1018 if (sp->c_fef & FEF_REXMT) 1019 return(1); 1020 if (sp->c_fef & FEF_PF) { 1021 rdreset(rs); 1022 return(1); 1023 } 1024 /* 1025 * Unit requests release for internal maintenance. 1026 * We just delay awhile and try again later. Use expontially 1027 * increasing backoff ala ethernet drivers since we don't really 1028 * know how long the maintenance will take. With RDWAITC and 1029 * RDRETRY as defined, the range is 1 to 32 seconds. 1030 */ 1031 if (sp->c_fef & FEF_IMR) { 1032 extern int hz; 1033 int rdtimo = RDWAITC << rs->sc_errcnt; 1034 #ifdef DEBUG 1035 printf("%s: internal maintenance, %d second timeout\n", 1036 rs->sc_dev.dv_xname, rdtimo); 1037 rs->sc_stats.rdtimeouts++; 1038 #endif 1039 hpibfree(rs->sc_dev.dv_parent, &rs->sc_hq); 1040 callout_reset(&rs->sc_restart_ch, rdtimo * hz, rdrestart, rs); 1041 return(0); 1042 } 1043 /* 1044 * Only report error if we have reached the error reporting 1045 * threshhold. By default, this will only report after the 1046 * retry limit has been exceeded. 1047 */ 1048 if (rs->sc_errcnt < rderrthresh) 1049 return(1); 1050 1051 /* 1052 * First conjure up the block number at which the error occurred. 1053 * Note that not all errors report a block number, in that case 1054 * we just use b_blkno. 1055 */ 1056 bp = BUFQ_PEEK(&rs->sc_tab); 1057 pbn = rs->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)].p_offset; 1058 if ((sp->c_fef & FEF_CU) || (sp->c_fef & FEF_DR) || 1059 (sp->c_ief & IEF_RRMASK)) { 1060 hwbn = RDBTOS(pbn + bp->b_blkno); 1061 pbn = bp->b_blkno; 1062 } else { 1063 hwbn = sp->c_blk; 1064 pbn = RDSTOB(hwbn) - pbn; 1065 } 1066 /* 1067 * Now output a generic message suitable for badsect. 1068 * Note that we don't use harderr cuz it just prints 1069 * out b_blkno which is just the beginning block number 1070 * of the transfer, not necessary where the error occurred. 1071 */ 1072 printf("%s%c: hard error sn%d\n", rs->sc_dev.dv_xname, 1073 'a'+rdpart(bp->b_dev), pbn); 1074 /* 1075 * Now report the status as returned by the hardware with 1076 * attempt at interpretation (unless debugging). 1077 */ 1078 printf("%s %s error:", rs->sc_dev.dv_xname, 1079 (bp->b_flags & B_READ) ? "read" : "write"); 1080 #ifdef DEBUG 1081 if (rddebug & RDB_ERROR) { 1082 /* status info */ 1083 printf("\n volume: %d, unit: %d\n", 1084 (sp->c_vu>>4)&0xF, sp->c_vu&0xF); 1085 rdprinterr("reject", sp->c_ref, err_reject); 1086 rdprinterr("fault", sp->c_fef, err_fault); 1087 rdprinterr("access", sp->c_aef, err_access); 1088 rdprinterr("info", sp->c_ief, err_info); 1089 printf(" block: %d, P1-P10: ", hwbn); 1090 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1091 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1092 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1093 /* command */ 1094 printf(" ioc: "); 1095 printf("0x%x", *(u_int *)&rs->sc_ioc.c_pad); 1096 printf("0x%x", *(u_short *)&rs->sc_ioc.c_hiaddr); 1097 printf("0x%x", *(u_int *)&rs->sc_ioc.c_addr); 1098 printf("0x%x", *(u_short *)&rs->sc_ioc.c_nop2); 1099 printf("0x%x", *(u_int *)&rs->sc_ioc.c_len); 1100 printf("0x%x\n", *(u_short *)&rs->sc_ioc.c_cmd); 1101 return(1); 1102 } 1103 #endif 1104 printf(" v%d u%d, R0x%x F0x%x A0x%x I0x%x\n", 1105 (sp->c_vu>>4)&0xF, sp->c_vu&0xF, 1106 sp->c_ref, sp->c_fef, sp->c_aef, sp->c_ief); 1107 printf("P1-P10: "); 1108 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1109 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1110 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1111 return(1); 1112 } 1113 1114 int 1115 rdread(dev, uio, flags) 1116 dev_t dev; 1117 struct uio *uio; 1118 int flags; 1119 { 1120 1121 return (physio(rdstrategy, NULL, dev, B_READ, minphys, uio)); 1122 } 1123 1124 int 1125 rdwrite(dev, uio, flags) 1126 dev_t dev; 1127 struct uio *uio; 1128 int flags; 1129 { 1130 1131 return (physio(rdstrategy, NULL, dev, B_WRITE, minphys, uio)); 1132 } 1133 1134 int 1135 rdioctl(dev, cmd, data, flag, p) 1136 dev_t dev; 1137 u_long cmd; 1138 caddr_t data; 1139 int flag; 1140 struct proc *p; 1141 { 1142 int unit = rdunit(dev); 1143 struct rd_softc *sc = rd_cd.cd_devs[unit]; 1144 struct disklabel *lp = sc->sc_dkdev.dk_label; 1145 int error, flags; 1146 1147 switch (cmd) { 1148 case DIOCGDINFO: 1149 *(struct disklabel *)data = *lp; 1150 return (0); 1151 1152 case DIOCGPART: 1153 ((struct partinfo *)data)->disklab = lp; 1154 ((struct partinfo *)data)->part = 1155 &lp->d_partitions[rdpart(dev)]; 1156 return (0); 1157 1158 case DIOCWLABEL: 1159 if ((flag & FWRITE) == 0) 1160 return (EBADF); 1161 if (*(int *)data) 1162 sc->sc_flags |= RDF_WLABEL; 1163 else 1164 sc->sc_flags &= ~RDF_WLABEL; 1165 return (0); 1166 1167 case DIOCSDINFO: 1168 if ((flag & FWRITE) == 0) 1169 return (EBADF); 1170 return (setdisklabel(lp, (struct disklabel *)data, 1171 (sc->sc_flags & RDF_WLABEL) ? 0 1172 : sc->sc_dkdev.dk_openmask, 1173 (struct cpu_disklabel *)0)); 1174 1175 case DIOCWDINFO: 1176 if ((flag & FWRITE) == 0) 1177 return (EBADF); 1178 error = setdisklabel(lp, (struct disklabel *)data, 1179 (sc->sc_flags & RDF_WLABEL) ? 0 1180 : sc->sc_dkdev.dk_openmask, 1181 (struct cpu_disklabel *)0); 1182 if (error) 1183 return (error); 1184 flags = sc->sc_flags; 1185 sc->sc_flags = RDF_ALIVE | RDF_WLABEL; 1186 error = writedisklabel(rdlabdev(dev), rdstrategy, lp, 1187 (struct cpu_disklabel *)0); 1188 sc->sc_flags = flags; 1189 return (error); 1190 1191 case DIOCGDEFLABEL: 1192 rdgetdefaultlabel(sc, (struct disklabel *)data); 1193 return (0); 1194 } 1195 return(EINVAL); 1196 } 1197 1198 void 1199 rdgetdefaultlabel(sc, lp) 1200 struct rd_softc *sc; 1201 struct disklabel *lp; 1202 { 1203 int type = sc->sc_type; 1204 1205 memset((caddr_t)lp, 0, sizeof(struct disklabel)); 1206 1207 lp->d_type = DTYPE_HPIB; 1208 lp->d_secsize = DEV_BSIZE; 1209 lp->d_nsectors = rdidentinfo[type].ri_nbpt; 1210 lp->d_ntracks = rdidentinfo[type].ri_ntpc; 1211 lp->d_ncylinders = rdidentinfo[type].ri_ncyl; 1212 lp->d_secperunit = rdidentinfo[type].ri_nblocks; 1213 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1214 1215 strncpy(lp->d_typename, rdidentinfo[type].ri_desc, 16); 1216 strncpy(lp->d_packname, "fictitious", 16); 1217 lp->d_rpm = 3000; 1218 lp->d_interleave = 1; 1219 lp->d_flags = 0; 1220 1221 lp->d_partitions[RAW_PART].p_offset = 0; 1222 lp->d_partitions[RAW_PART].p_size = 1223 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1224 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1225 lp->d_npartitions = RAW_PART + 1; 1226 1227 lp->d_magic = DISKMAGIC; 1228 lp->d_magic2 = DISKMAGIC; 1229 lp->d_checksum = dkcksum(lp); 1230 } 1231 1232 int 1233 rdsize(dev) 1234 dev_t dev; 1235 { 1236 int unit = rdunit(dev); 1237 struct rd_softc *rs; 1238 int psize, didopen = 0; 1239 1240 if (unit >= rd_cd.cd_ndevs || 1241 (rs = rd_cd.cd_devs[unit]) == NULL || 1242 (rs->sc_flags & RDF_ALIVE) == 0) 1243 return (-1); 1244 1245 /* 1246 * We get called very early on (via swapconf) 1247 * without the device being open so we may need 1248 * to handle it here. 1249 */ 1250 if (rs->sc_dkdev.dk_openmask == 0) { 1251 if (rdopen(dev, FREAD|FWRITE, S_IFBLK, NULL)) 1252 return(-1); 1253 didopen = 1; 1254 } 1255 psize = rs->sc_dkdev.dk_label->d_partitions[rdpart(dev)].p_size * 1256 (rs->sc_dkdev.dk_label->d_secsize / DEV_BSIZE); 1257 if (didopen) 1258 (void) rdclose(dev, FREAD|FWRITE, S_IFBLK, NULL); 1259 return (psize); 1260 } 1261 1262 #ifdef DEBUG 1263 void 1264 rdprinterr(str, err, tab) 1265 char *str; 1266 short err; 1267 char **tab; 1268 { 1269 int i; 1270 int printed; 1271 1272 if (err == 0) 1273 return; 1274 printf(" %s error %d field:", str, err); 1275 printed = 0; 1276 for (i = 0; i < 16; i++) 1277 if (err & (0x8000 >> i)) 1278 printf("%s%s", printed++ ? " + " : " ", tab[i]); 1279 printf("\n"); 1280 } 1281 #endif 1282 1283 static int rddoingadump; /* simple mutex */ 1284 1285 /* 1286 * Non-interrupt driven, non-dma dump routine. 1287 */ 1288 int 1289 rddump(dev, blkno, va, size) 1290 dev_t dev; 1291 daddr_t blkno; 1292 caddr_t va; 1293 size_t size; 1294 { 1295 int sectorsize; /* size of a disk sector */ 1296 int nsects; /* number of sectors in partition */ 1297 int sectoff; /* sector offset of partition */ 1298 int totwrt; /* total number of sectors left to write */ 1299 int nwrt; /* current number of sectors to write */ 1300 int unit, part; 1301 int ctlr, slave; 1302 struct rd_softc *rs; 1303 struct disklabel *lp; 1304 char stat; 1305 1306 /* Check for recursive dump; if so, punt. */ 1307 if (rddoingadump) 1308 return (EFAULT); 1309 rddoingadump = 1; 1310 1311 /* Decompose unit and partition. */ 1312 unit = rdunit(dev); 1313 part = rdpart(dev); 1314 1315 /* Make sure dump device is ok. */ 1316 if (unit >= rd_cd.cd_ndevs || 1317 (rs = rd_cd.cd_devs[unit]) == NULL || 1318 (rs->sc_flags & RDF_ALIVE) == 0) 1319 return (ENXIO); 1320 1321 ctlr = rs->sc_dev.dv_parent->dv_unit; 1322 slave = rs->sc_slave; 1323 1324 /* 1325 * Convert to disk sectors. Request must be a multiple of size. 1326 */ 1327 lp = rs->sc_dkdev.dk_label; 1328 sectorsize = lp->d_secsize; 1329 if ((size % sectorsize) != 0) 1330 return (EFAULT); 1331 totwrt = size / sectorsize; 1332 blkno = dbtob(blkno) / sectorsize; /* blkno in DEV_BSIZE units */ 1333 1334 nsects = lp->d_partitions[part].p_size; 1335 sectoff = lp->d_partitions[part].p_offset; 1336 1337 /* Check transfer bounds against partition size. */ 1338 if ((blkno < 0) || (blkno + totwrt) > nsects) 1339 return (EINVAL); 1340 1341 /* Offset block number to start of partition. */ 1342 blkno += sectoff; 1343 1344 while (totwrt > 0) { 1345 nwrt = totwrt; /* XXX */ 1346 #ifndef RD_DUMP_NOT_TRUSTED 1347 /* 1348 * Fill out and send HPIB command. 1349 */ 1350 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 1351 rs->sc_ioc.c_volume = C_SVOL(0); 1352 rs->sc_ioc.c_saddr = C_SADDR; 1353 rs->sc_ioc.c_hiaddr = 0; 1354 rs->sc_ioc.c_addr = RDBTOS(blkno); 1355 rs->sc_ioc.c_nop2 = C_NOP; 1356 rs->sc_ioc.c_slen = C_SLEN; 1357 rs->sc_ioc.c_len = nwrt * sectorsize; 1358 rs->sc_ioc.c_cmd = C_WRITE; 1359 hpibsend(ctlr, slave, C_CMD, &rs->sc_ioc.c_unit, 1360 sizeof(rs->sc_ioc)-2); 1361 if (hpibswait(ctlr, slave)) 1362 return (EIO); 1363 1364 /* 1365 * Send the data. 1366 */ 1367 hpibsend(ctlr, slave, C_EXEC, va, nwrt * sectorsize); 1368 (void) hpibswait(ctlr, slave); 1369 hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 1370 if (stat) 1371 return (EIO); 1372 #else /* RD_DUMP_NOT_TRUSTED */ 1373 /* Let's just talk about this first... */ 1374 printf("%s: dump addr %p, blk %d\n", sc->sc_dev.dv_xname, 1375 va, blkno); 1376 delay(500 * 1000); /* half a second */ 1377 #endif /* RD_DUMP_NOT_TRUSTED */ 1378 1379 /* update block count */ 1380 totwrt -= nwrt; 1381 blkno += nwrt; 1382 va += sectorsize * nwrt; 1383 } 1384 rddoingadump = 0; 1385 return (0); 1386 } 1387
Indexes created Tue Sep 30 11:09:46 GMT 2025