rd.c revision 1.82
1 /* $NetBSD: rd.c,v 1.82 2007/07/29 12:15:37 ad 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) 1982, 1990, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * the Systems Programming Group of the University of Utah Computer 45 * Science Department. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * from: Utah $Hdr: rd.c 1.44 92/12/26$ 72 * 73 * @(#)rd.c 8.2 (Berkeley) 5/19/94 74 */ 75 /* 76 * Copyright (c) 1988 University of Utah. 77 * 78 * This code is derived from software contributed to Berkeley by 79 * the Systems Programming Group of the University of Utah Computer 80 * Science Department. 81 * 82 * Redistribution and use in source and binary forms, with or without 83 * modification, are permitted provided that the following conditions 84 * are met: 85 * 1. Redistributions of source code must retain the above copyright 86 * notice, this list of conditions and the following disclaimer. 87 * 2. Redistributions in binary form must reproduce the above copyright 88 * notice, this list of conditions and the following disclaimer in the 89 * documentation and/or other materials provided with the distribution. 90 * 3. All advertising materials mentioning features or use of this software 91 * must display the following acknowledgement: 92 * This product includes software developed by the University of 93 * California, Berkeley and its contributors. 94 * 4. Neither the name of the University nor the names of its contributors 95 * may be used to endorse or promote products derived from this software 96 * without specific prior written permission. 97 * 98 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 99 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 100 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 101 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 102 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 103 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 104 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 105 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 106 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 107 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 108 * SUCH DAMAGE. 109 * 110 * from: Utah $Hdr: rd.c 1.44 92/12/26$ 111 * 112 * @(#)rd.c 8.2 (Berkeley) 5/19/94 113 */ 114 115 /* 116 * CS80/SS80 disk driver 117 */ 118 119 #include <sys/cdefs.h> 120 __KERNEL_RCSID(0, "$NetBSD: rd.c,v 1.82 2007/07/29 12:15:37 ad Exp $"); 121 122 #include "opt_useleds.h" 123 #include "rnd.h" 124 125 #include <sys/param.h> 126 #include <sys/systm.h> 127 #include <sys/buf.h> 128 #include <sys/bufq.h> 129 #include <sys/conf.h> 130 #include <sys/device.h> 131 #include <sys/disk.h> 132 #include <sys/disklabel.h> 133 #include <sys/fcntl.h> 134 #include <sys/ioctl.h> 135 #include <sys/proc.h> 136 #include <sys/stat.h> 137 138 #if NRND > 0 139 #include <sys/rnd.h> 140 #endif 141 142 #include <hp300/dev/hpibvar.h> 143 144 #include <hp300/dev/rdreg.h> 145 #include <hp300/dev/rdvar.h> 146 147 #ifdef USELEDS 148 #include <hp300/hp300/leds.h> 149 #endif 150 151 #include "ioconf.h" 152 153 int rderrthresh = RDRETRY-1; /* when to start reporting errors */ 154 155 #ifdef DEBUG 156 /* error message tables */ 157 static const char *err_reject[] = { 158 0, 0, 159 "channel parity error", /* 0x2000 */ 160 0, 0, 161 "illegal opcode", /* 0x0400 */ 162 "module addressing", /* 0x0200 */ 163 "address bounds", /* 0x0100 */ 164 "parameter bounds", /* 0x0080 */ 165 "illegal parameter", /* 0x0040 */ 166 "message sequence", /* 0x0020 */ 167 0, 168 "message length", /* 0x0008 */ 169 0, 0, 0 170 }; 171 172 static const char *err_fault[] = { 173 0, 174 "cross unit", /* 0x4000 */ 175 0, 176 "controller fault", /* 0x1000 */ 177 0, 0, 178 "unit fault", /* 0x0200 */ 179 0, 180 "diagnostic result", /* 0x0080 */ 181 0, 182 "operator release request", /* 0x0020 */ 183 "diagnostic release request", /* 0x0010 */ 184 "internal maintenance release request", /* 0x0008 */ 185 0, 186 "power fail", /* 0x0002 */ 187 "retransmit" /* 0x0001 */ 188 }; 189 190 static const char *err_access[] = { 191 "illegal parallel operation", /* 0x8000 */ 192 "uninitialized media", /* 0x4000 */ 193 "no spares available", /* 0x2000 */ 194 "not ready", /* 0x1000 */ 195 "write protect", /* 0x0800 */ 196 "no data found", /* 0x0400 */ 197 0, 0, 198 "unrecoverable data overflow", /* 0x0080 */ 199 "unrecoverable data", /* 0x0040 */ 200 0, 201 "end of file", /* 0x0010 */ 202 "end of volume", /* 0x0008 */ 203 0, 0, 0 204 }; 205 206 static const char *err_info[] = { 207 "operator release request", /* 0x8000 */ 208 "diagnostic release request", /* 0x4000 */ 209 "internal maintenance release request", /* 0x2000 */ 210 "media wear", /* 0x1000 */ 211 "latency induced", /* 0x0800 */ 212 0, 0, 213 "auto sparing invoked", /* 0x0100 */ 214 0, 215 "recoverable data overflow", /* 0x0040 */ 216 "marginal data", /* 0x0020 */ 217 "recoverable data", /* 0x0010 */ 218 0, 219 "maintenance track overflow", /* 0x0004 */ 220 0, 0 221 }; 222 223 int rddebug = 0x80; 224 #define RDB_FOLLOW 0x01 225 #define RDB_STATUS 0x02 226 #define RDB_IDENT 0x04 227 #define RDB_IO 0x08 228 #define RDB_ASYNC 0x10 229 #define RDB_ERROR 0x80 230 #endif 231 232 /* 233 * Misc. HW description, indexed by sc_type. 234 * Nothing really critical here, could do without it. 235 */ 236 static const struct rdidentinfo rdidentinfo[] = { 237 { RD7946AID, 0, "7945A", NRD7945ABPT, 238 NRD7945ATRK, 968, 108416 }, 239 240 { RD9134DID, 1, "9134D", NRD9134DBPT, 241 NRD9134DTRK, 303, 29088 }, 242 243 { RD9134LID, 1, "9122S", NRD9122SBPT, 244 NRD9122STRK, 77, 1232 }, 245 246 { RD7912PID, 0, "7912P", NRD7912PBPT, 247 NRD7912PTRK, 572, 128128 }, 248 249 { RD7914PID, 0, "7914P", NRD7914PBPT, 250 NRD7914PTRK, 1152, 258048 }, 251 252 { RD7958AID, 0, "7958A", NRD7958ABPT, 253 NRD7958ATRK, 1013, 255276 }, 254 255 { RD7957AID, 0, "7957A", NRD7957ABPT, 256 NRD7957ATRK, 1036, 159544 }, 257 258 { RD7933HID, 0, "7933H", NRD7933HBPT, 259 NRD7933HTRK, 1321, 789958 }, 260 261 { RD9134LID, 1, "9134L", NRD9134LBPT, 262 NRD9134LTRK, 973, 77840 }, 263 264 { RD7936HID, 0, "7936H", NRD7936HBPT, 265 NRD7936HTRK, 698, 600978 }, 266 267 { RD7937HID, 0, "7937H", NRD7937HBPT, 268 NRD7937HTRK, 698, 1116102 }, 269 270 { RD7914CTID, 0, "7914CT", NRD7914PBPT, 271 NRD7914PTRK, 1152, 258048 }, 272 273 { RD7946AID, 0, "7946A", NRD7945ABPT, 274 NRD7945ATRK, 968, 108416 }, 275 276 { RD9134LID, 1, "9122D", NRD9122SBPT, 277 NRD9122STRK, 77, 1232 }, 278 279 { RD7957BID, 0, "7957B", NRD7957BBPT, 280 NRD7957BTRK, 1269, 159894 }, 281 282 { RD7958BID, 0, "7958B", NRD7958BBPT, 283 NRD7958BTRK, 786, 297108 }, 284 285 { RD7959BID, 0, "7959B", NRD7959BBPT, 286 NRD7959BTRK, 1572, 594216 }, 287 288 { RD2200AID, 0, "2200A", NRD2200ABPT, 289 NRD2200ATRK, 1449, 654948 }, 290 291 { RD2203AID, 0, "2203A", NRD2203ABPT, 292 NRD2203ATRK, 1449, 1309896 } 293 }; 294 static const int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]); 295 296 static int rdident(struct device *, struct rd_softc *, 297 struct hpibbus_attach_args *); 298 static void rdreset(struct rd_softc *); 299 static void rdustart(struct rd_softc *); 300 static int rdgetinfo(dev_t); 301 static void rdrestart(void *); 302 static struct buf *rdfinish(struct rd_softc *, struct buf *); 303 304 static void rdgetdefaultlabel(struct rd_softc *, struct disklabel *); 305 static void rdrestart(void *); 306 static void rdustart(struct rd_softc *); 307 static struct buf *rdfinish(struct rd_softc *, struct buf *); 308 static void rdstart(void *); 309 static void rdgo(void *); 310 static void rdintr(void *); 311 static int rdstatus(struct rd_softc *); 312 static int rderror(int); 313 #ifdef DEBUG 314 static void rdprinterr(const char *, short, const char **); 315 #endif 316 317 static int rdmatch(struct device *, struct cfdata *, void *); 318 static void rdattach(struct device *, struct device *, void *); 319 320 CFATTACH_DECL(rd, sizeof(struct rd_softc), 321 rdmatch, rdattach, NULL, NULL); 322 323 static dev_type_open(rdopen); 324 static dev_type_close(rdclose); 325 static dev_type_read(rdread); 326 static dev_type_write(rdwrite); 327 static dev_type_ioctl(rdioctl); 328 static dev_type_strategy(rdstrategy); 329 static dev_type_dump(rddump); 330 static dev_type_size(rdsize); 331 332 const struct bdevsw rd_bdevsw = { 333 rdopen, rdclose, rdstrategy, rdioctl, rddump, rdsize, D_DISK 334 }; 335 336 const struct cdevsw rd_cdevsw = { 337 rdopen, rdclose, rdread, rdwrite, rdioctl, 338 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 339 }; 340 341 static int 342 rdmatch(struct device *parent, struct cfdata *match, void *aux) 343 { 344 struct hpibbus_attach_args *ha = aux; 345 346 /* 347 * Set punit if operator specified one in the kernel 348 * configuration file. 349 */ 350 if (match->hpibbuscf_punit != HPIBBUSCF_PUNIT_DEFAULT && 351 match->hpibbuscf_punit < HPIB_NPUNITS) 352 ha->ha_punit = match->hpibbuscf_punit; 353 354 if (rdident(parent, NULL, ha) == 0) { 355 /* 356 * XXX Some aging HP-IB drives are slow to 357 * XXX respond; give them a chance to catch 358 * XXX up and probe them again. 359 */ 360 delay(10000); 361 ha->ha_id = hpibid(device_unit(parent), ha->ha_slave); 362 return rdident(parent, NULL, ha); 363 } 364 return 1; 365 } 366 367 static void 368 rdattach(struct device *parent, struct device *self, void *aux) 369 { 370 struct rd_softc *sc = (struct rd_softc *)self; 371 struct hpibbus_attach_args *ha = aux; 372 373 bufq_alloc(&sc->sc_tab, "disksort", BUFQ_SORT_RAWBLOCK); 374 375 if (rdident(parent, sc, ha) == 0) { 376 printf("\n%s: didn't respond to describe command!\n", 377 sc->sc_dev.dv_xname); 378 return; 379 } 380 381 /* 382 * Initialize and attach the disk structure. 383 */ 384 memset(&sc->sc_dkdev, 0, sizeof(sc->sc_dkdev)); 385 sc->sc_dkdev.dk_name = sc->sc_dev.dv_xname; 386 disk_attach(&sc->sc_dkdev); 387 388 sc->sc_slave = ha->ha_slave; 389 sc->sc_punit = ha->ha_punit; 390 391 callout_init(&sc->sc_restart_ch, 0); 392 393 /* Initialize the hpib job queue entry */ 394 sc->sc_hq.hq_softc = sc; 395 sc->sc_hq.hq_slave = sc->sc_slave; 396 sc->sc_hq.hq_start = rdstart; 397 sc->sc_hq.hq_go = rdgo; 398 sc->sc_hq.hq_intr = rdintr; 399 400 sc->sc_flags = RDF_ALIVE; 401 #ifdef DEBUG 402 /* always report errors */ 403 if (rddebug & RDB_ERROR) 404 rderrthresh = 0; 405 #endif 406 #if NRND > 0 407 /* 408 * attach the device into the random source list 409 */ 410 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, 411 RND_TYPE_DISK, 0); 412 #endif 413 } 414 415 static int 416 rdident(struct device *parent, struct rd_softc *sc, 417 struct hpibbus_attach_args *ha) 418 { 419 struct rd_describe *desc = sc != NULL ? &sc->sc_rddesc : NULL; 420 u_char stat, cmd[3]; 421 char name[7]; 422 int i, id, n, ctlr, slave; 423 424 ctlr = device_unit(parent); 425 slave = ha->ha_slave; 426 427 /* Verify that we have a CS80 device. */ 428 if ((ha->ha_id & 0x200) == 0) 429 return 0; 430 431 /* Is it one of the disks we support? */ 432 for (id = 0; id < numrdidentinfo; id++) 433 if (ha->ha_id == rdidentinfo[id].ri_hwid) 434 break; 435 if (id == numrdidentinfo || ha->ha_punit > rdidentinfo[id].ri_maxunum) 436 return 0; 437 438 /* 439 * If we're just probing for the device, that's all the 440 * work we need to do. 441 */ 442 if (sc == NULL) 443 return 1; 444 445 /* 446 * Reset device and collect description 447 */ 448 rdreset(sc); 449 cmd[0] = C_SUNIT(ha->ha_punit); 450 cmd[1] = C_SVOL(0); 451 cmd[2] = C_DESC; 452 hpibsend(ctlr, slave, C_CMD, cmd, sizeof(cmd)); 453 hpibrecv(ctlr, slave, C_EXEC, desc, 37); 454 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 455 memset(name, 0, sizeof(name)); 456 if (stat == 0) { 457 n = desc->d_name; 458 for (i = 5; i >= 0; i--) { 459 name[i] = (n & 0xf) + '0'; 460 n >>= 4; 461 } 462 } 463 464 #ifdef DEBUG 465 if (rddebug & RDB_IDENT) { 466 printf("\n%s: name: %x ('%s')\n", 467 sc->sc_dev.dv_xname, desc->d_name, name); 468 printf(" iuw %x, maxxfr %d, ctype %d\n", 469 desc->d_iuw, desc->d_cmaxxfr, desc->d_ctype); 470 printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n", 471 desc->d_utype, desc->d_sectsize, 472 desc->d_blkbuf, desc->d_burstsize, desc->d_blocktime); 473 printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n", 474 desc->d_uavexfr, desc->d_retry, desc->d_access, 475 desc->d_maxint, desc->d_fvbyte, desc->d_rvbyte); 476 printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n", 477 desc->d_maxcyl, desc->d_maxhead, desc->d_maxsect, 478 desc->d_maxvsectl, desc->d_interleave); 479 printf("%s", sc->sc_dev.dv_xname); 480 } 481 #endif 482 483 /* 484 * Take care of a couple of anomolies: 485 * 1. 7945A and 7946A both return same HW id 486 * 2. 9122S and 9134D both return same HW id 487 * 3. 9122D and 9134L both return same HW id 488 */ 489 switch (ha->ha_id) { 490 case RD7946AID: 491 if (memcmp(name, "079450", 6) == 0) 492 id = RD7945A; 493 else 494 id = RD7946A; 495 break; 496 497 case RD9134LID: 498 if (memcmp(name, "091340", 6) == 0) 499 id = RD9134L; 500 else 501 id = RD9122D; 502 break; 503 504 case RD9134DID: 505 if (memcmp(name, "091220", 6) == 0) 506 id = RD9122S; 507 else 508 id = RD9134D; 509 break; 510 } 511 512 sc->sc_type = id; 513 514 /* 515 * XXX We use DEV_BSIZE instead of the sector size value pulled 516 * XXX off the driver because all of this code assumes 512 byte 517 * XXX blocks. ICK! 518 */ 519 printf(": %s\n", rdidentinfo[id].ri_desc); 520 printf("%s: %d cylinders, %d heads, %d blocks, %d bytes/block\n", 521 sc->sc_dev.dv_xname, rdidentinfo[id].ri_ncyl, 522 rdidentinfo[id].ri_ntpc, rdidentinfo[id].ri_nblocks, 523 DEV_BSIZE); 524 525 return 1; 526 } 527 528 static void 529 rdreset(struct rd_softc *rs) 530 { 531 int ctlr = device_unit(device_parent(&rs->sc_dev)); 532 int slave = rs->sc_slave; 533 u_char stat; 534 535 rs->sc_clear.c_unit = C_SUNIT(rs->sc_punit); 536 rs->sc_clear.c_cmd = C_CLEAR; 537 hpibsend(ctlr, slave, C_TCMD, &rs->sc_clear, sizeof(rs->sc_clear)); 538 hpibswait(ctlr, slave); 539 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 540 541 rs->sc_src.c_unit = C_SUNIT(RDCTLR); 542 rs->sc_src.c_nop = C_NOP; 543 rs->sc_src.c_cmd = C_SREL; 544 rs->sc_src.c_param = C_REL; 545 hpibsend(ctlr, slave, C_CMD, &rs->sc_src, sizeof(rs->sc_src)); 546 hpibswait(ctlr, slave); 547 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 548 549 rs->sc_ssmc.c_unit = C_SUNIT(rs->sc_punit); 550 rs->sc_ssmc.c_cmd = C_SSM; 551 rs->sc_ssmc.c_refm = REF_MASK; 552 rs->sc_ssmc.c_fefm = FEF_MASK; 553 rs->sc_ssmc.c_aefm = AEF_MASK; 554 rs->sc_ssmc.c_iefm = IEF_MASK; 555 hpibsend(ctlr, slave, C_CMD, &rs->sc_ssmc, sizeof(rs->sc_ssmc)); 556 hpibswait(ctlr, slave); 557 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 558 #ifdef DEBUG 559 rs->sc_stats.rdresets++; 560 #endif 561 } 562 563 /* 564 * Read or construct a disklabel 565 */ 566 static int 567 rdgetinfo(dev_t dev) 568 { 569 int unit = rdunit(dev); 570 struct rd_softc *rs = rd_cd.cd_devs[unit]; 571 struct disklabel *lp = rs->sc_dkdev.dk_label; 572 struct partition *pi; 573 const char *msg; 574 575 /* 576 * Set some default values to use while reading the label 577 * or to use if there isn't a label. 578 */ 579 memset((void *)lp, 0, sizeof *lp); 580 rdgetdefaultlabel(rs, lp); 581 582 /* 583 * Now try to read the disklabel 584 */ 585 msg = readdisklabel(rdlabdev(dev), rdstrategy, lp, NULL); 586 if (msg == NULL) 587 return 0; 588 589 pi = lp->d_partitions; 590 printf("%s: WARNING: %s\n", rs->sc_dev.dv_xname, msg); 591 592 pi[2].p_size = rdidentinfo[rs->sc_type].ri_nblocks; 593 /* XXX reset other info since readdisklabel screws with it */ 594 lp->d_npartitions = 3; 595 pi[0].p_size = 0; 596 597 return 0; 598 } 599 600 static int 601 rdopen(dev_t dev, int flags, int mode, struct lwp *l) 602 { 603 int unit = rdunit(dev); 604 struct rd_softc *rs; 605 int error, mask, part; 606 607 if (unit >= rd_cd.cd_ndevs || 608 (rs = rd_cd.cd_devs[unit]) == NULL || 609 (rs->sc_flags & RDF_ALIVE) == 0) 610 return ENXIO; 611 612 /* 613 * Wait for any pending opens/closes to complete 614 */ 615 while (rs->sc_flags & (RDF_OPENING|RDF_CLOSING)) 616 (void) tsleep(rs, PRIBIO, "rdopen", 0); 617 618 /* 619 * On first open, get label and partition info. 620 * We may block reading the label, so be careful 621 * to stop any other opens. 622 */ 623 if (rs->sc_dkdev.dk_openmask == 0) { 624 rs->sc_flags |= RDF_OPENING; 625 error = rdgetinfo(dev); 626 rs->sc_flags &= ~RDF_OPENING; 627 wakeup((void *)rs); 628 if (error) 629 return error; 630 } 631 632 part = rdpart(dev); 633 mask = 1 << part; 634 635 /* Check that the partition exists. */ 636 if (part != RAW_PART && 637 (part > rs->sc_dkdev.dk_label->d_npartitions || 638 rs->sc_dkdev.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) 639 return ENXIO; 640 641 /* Ensure only one open at a time. */ 642 switch (mode) { 643 case S_IFCHR: 644 rs->sc_dkdev.dk_copenmask |= mask; 645 break; 646 case S_IFBLK: 647 rs->sc_dkdev.dk_bopenmask |= mask; 648 break; 649 } 650 rs->sc_dkdev.dk_openmask = 651 rs->sc_dkdev.dk_copenmask | rs->sc_dkdev.dk_bopenmask; 652 653 return 0; 654 } 655 656 static int 657 rdclose(dev_t dev, int flag, int mode, struct lwp *l) 658 { 659 int unit = rdunit(dev); 660 struct rd_softc *rs = rd_cd.cd_devs[unit]; 661 struct disk *dk = &rs->sc_dkdev; 662 int mask, s; 663 664 mask = 1 << rdpart(dev); 665 if (mode == S_IFCHR) 666 dk->dk_copenmask &= ~mask; 667 else 668 dk->dk_bopenmask &= ~mask; 669 dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; 670 /* 671 * On last close, we wait for all activity to cease since 672 * the label/parition info will become invalid. Since we 673 * might sleep, we must block any opens while we are here. 674 * Note we don't have to about other closes since we know 675 * we are the last one. 676 */ 677 if (dk->dk_openmask == 0) { 678 rs->sc_flags |= RDF_CLOSING; 679 s = splbio(); 680 while (rs->sc_active) { 681 rs->sc_flags |= RDF_WANTED; 682 (void) tsleep(&rs->sc_tab, PRIBIO, "rdclose", 0); 683 } 684 splx(s); 685 rs->sc_flags &= ~(RDF_CLOSING|RDF_WLABEL); 686 wakeup((void *)rs); 687 } 688 return 0; 689 } 690 691 static void 692 rdstrategy(struct buf *bp) 693 { 694 int unit = rdunit(bp->b_dev); 695 struct rd_softc *rs = rd_cd.cd_devs[unit]; 696 struct partition *pinfo; 697 daddr_t bn; 698 int sz, s; 699 int offset; 700 701 #ifdef DEBUG 702 if (rddebug & RDB_FOLLOW) 703 printf("rdstrategy(%p): dev %x, bn %llx, bcount %x, %c\n", 704 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 705 (bp->b_flags & B_READ) ? 'R' : 'W'); 706 #endif 707 bn = bp->b_blkno; 708 sz = howmany(bp->b_bcount, DEV_BSIZE); 709 pinfo = &rs->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)]; 710 711 /* Don't perform partition translation on RAW_PART. */ 712 offset = (rdpart(bp->b_dev) == RAW_PART) ? 0 : pinfo->p_offset; 713 714 if (rdpart(bp->b_dev) != RAW_PART) { 715 /* 716 * XXX This block of code belongs in 717 * XXX bounds_check_with_label() 718 */ 719 720 if (bn < 0 || bn + sz > pinfo->p_size) { 721 sz = pinfo->p_size - bn; 722 if (sz == 0) { 723 bp->b_resid = bp->b_bcount; 724 goto done; 725 } 726 if (sz < 0) { 727 bp->b_error = EINVAL; 728 goto done; 729 } 730 bp->b_bcount = dbtob(sz); 731 } 732 /* 733 * Check for write to write protected label 734 */ 735 if (bn + offset <= LABELSECTOR && 736 #if LABELSECTOR != 0 737 bn + offset + sz > LABELSECTOR && 738 #endif 739 !(bp->b_flags & B_READ) && !(rs->sc_flags & RDF_WLABEL)) { 740 bp->b_error = EROFS; 741 goto done; 742 } 743 } 744 bp->b_rawblkno = bn + offset; 745 s = splbio(); 746 BUFQ_PUT(rs->sc_tab, bp); 747 if (rs->sc_active == 0) { 748 rs->sc_active = 1; 749 rdustart(rs); 750 } 751 splx(s); 752 return; 753 done: 754 biodone(bp); 755 } 756 757 /* 758 * Called from timeout() when handling maintenance releases 759 */ 760 static void 761 rdrestart(void *arg) 762 { 763 int s = splbio(); 764 rdustart((struct rd_softc *)arg); 765 splx(s); 766 } 767 768 static void 769 rdustart(struct rd_softc *rs) 770 { 771 struct buf *bp; 772 773 bp = BUFQ_PEEK(rs->sc_tab); 774 rs->sc_addr = bp->b_data; 775 rs->sc_resid = bp->b_bcount; 776 if (hpibreq(device_parent(&rs->sc_dev), &rs->sc_hq)) 777 rdstart(rs); 778 } 779 780 static struct buf * 781 rdfinish(struct rd_softc *rs, struct buf *bp) 782 { 783 784 rs->sc_errcnt = 0; 785 (void)BUFQ_GET(rs->sc_tab); 786 bp->b_resid = 0; 787 biodone(bp); 788 hpibfree(device_parent(&rs->sc_dev), &rs->sc_hq); 789 if ((bp = BUFQ_PEEK(rs->sc_tab)) != NULL) 790 return bp; 791 rs->sc_active = 0; 792 if (rs->sc_flags & RDF_WANTED) { 793 rs->sc_flags &= ~RDF_WANTED; 794 wakeup((void *)&rs->sc_tab); 795 } 796 return NULL; 797 } 798 799 static void 800 rdstart(void *arg) 801 { 802 struct rd_softc *rs = arg; 803 struct buf *bp = BUFQ_PEEK(rs->sc_tab); 804 int part, ctlr, slave; 805 806 ctlr = device_unit(device_parent(&rs->sc_dev)); 807 slave = rs->sc_slave; 808 809 again: 810 #ifdef DEBUG 811 if (rddebug & RDB_FOLLOW) 812 printf("rdstart(%s): bp %p, %c\n", rs->sc_dev.dv_xname, bp, 813 (bp->b_flags & B_READ) ? 'R' : 'W'); 814 #endif 815 part = rdpart(bp->b_dev); 816 rs->sc_flags |= RDF_SEEK; 817 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 818 rs->sc_ioc.c_volume = C_SVOL(0); 819 rs->sc_ioc.c_saddr = C_SADDR; 820 rs->sc_ioc.c_hiaddr = 0; 821 rs->sc_ioc.c_addr = RDBTOS(bp->b_rawblkno); 822 rs->sc_ioc.c_nop2 = C_NOP; 823 rs->sc_ioc.c_slen = C_SLEN; 824 rs->sc_ioc.c_len = rs->sc_resid; 825 rs->sc_ioc.c_cmd = bp->b_flags & B_READ ? C_READ : C_WRITE; 826 #ifdef DEBUG 827 if (rddebug & RDB_IO) 828 printf("rdstart: hpibsend(%x, %x, %x, %p, %x)\n", 829 ctlr, slave, C_CMD, 830 &rs->sc_ioc.c_unit, sizeof(rs->sc_ioc)-2); 831 #endif 832 if (hpibsend(ctlr, slave, C_CMD, &rs->sc_ioc.c_unit, 833 sizeof(rs->sc_ioc)-2) == sizeof(rs->sc_ioc)-2) { 834 835 /* Instrumentation. */ 836 disk_busy(&rs->sc_dkdev); 837 iostat_seek(rs->sc_dkdev.dk_stats); 838 839 #ifdef DEBUG 840 if (rddebug & RDB_IO) 841 printf("rdstart: hpibawait(%x)\n", ctlr); 842 #endif 843 hpibawait(ctlr); 844 return; 845 } 846 /* 847 * Experience has shown that the hpibwait in this hpibsend will 848 * occasionally timeout. It appears to occur mostly on old 7914 849 * drives with full maintenance tracks. We should probably 850 * integrate this with the backoff code in rderror. 851 */ 852 #ifdef DEBUG 853 if (rddebug & RDB_ERROR) 854 printf("%s: rdstart: cmd %x adr %lx blk %lld len %d ecnt %d\n", 855 rs->sc_dev.dv_xname, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 856 bp->b_blkno, rs->sc_resid, rs->sc_errcnt); 857 rs->sc_stats.rdretries++; 858 #endif 859 rs->sc_flags &= ~RDF_SEEK; 860 rdreset(rs); 861 if (rs->sc_errcnt++ < RDRETRY) 862 goto again; 863 printf("%s: rdstart err: cmd 0x%x sect %ld blk %" PRId64 " len %d\n", 864 rs->sc_dev.dv_xname, rs->sc_ioc.c_cmd, rs->sc_ioc.c_addr, 865 bp->b_blkno, rs->sc_resid); 866 bp->b_error = EIO; 867 bp = rdfinish(rs, bp); 868 if (bp) { 869 rs->sc_addr = bp->b_data; 870 rs->sc_resid = bp->b_bcount; 871 if (hpibreq(device_parent(&rs->sc_dev), &rs->sc_hq)) 872 goto again; 873 } 874 } 875 876 static void 877 rdgo(void *arg) 878 { 879 struct rd_softc *rs = arg; 880 struct buf *bp = BUFQ_PEEK(rs->sc_tab); 881 int rw, ctlr, slave; 882 883 ctlr = device_unit(device_parent(&rs->sc_dev)); 884 slave = rs->sc_slave; 885 886 rw = bp->b_flags & B_READ; 887 888 /* Instrumentation. */ 889 disk_busy(&rs->sc_dkdev); 890 891 #ifdef USELEDS 892 ledcontrol(0, 0, LED_DISK); 893 #endif 894 hpibgo(ctlr, slave, C_EXEC, rs->sc_addr, rs->sc_resid, rw, rw != 0); 895 } 896 897 /* ARGSUSED */ 898 static void 899 rdintr(void *arg) 900 { 901 struct rd_softc *rs = arg; 902 int unit = device_unit(&rs->sc_dev); 903 struct buf *bp = BUFQ_PEEK(rs->sc_tab); 904 u_char stat = 13; /* in case hpibrecv fails */ 905 int rv, restart, ctlr, slave; 906 907 ctlr = device_unit(device_parent(&rs->sc_dev)); 908 slave = rs->sc_slave; 909 910 #ifdef DEBUG 911 if (rddebug & RDB_FOLLOW) 912 printf("rdintr(%d): bp %p, %c, flags %x\n", unit, bp, 913 (bp->b_flags & B_READ) ? 'R' : 'W', rs->sc_flags); 914 if (bp == NULL) { 915 printf("%s: bp == NULL\n", rs->sc_dev.dv_xname); 916 return; 917 } 918 #endif 919 disk_unbusy(&rs->sc_dkdev, (bp->b_bcount - bp->b_resid), 920 (bp->b_flags & B_READ)); 921 922 if (rs->sc_flags & RDF_SEEK) { 923 rs->sc_flags &= ~RDF_SEEK; 924 if (hpibustart(ctlr)) 925 rdgo(rs); 926 return; 927 } 928 if ((rs->sc_flags & RDF_SWAIT) == 0) { 929 #ifdef DEBUG 930 rs->sc_stats.rdpolltries++; 931 #endif 932 if (hpibpptest(ctlr, slave) == 0) { 933 #ifdef DEBUG 934 rs->sc_stats.rdpollwaits++; 935 #endif 936 937 /* Instrumentation. */ 938 disk_busy(&rs->sc_dkdev); 939 rs->sc_flags |= RDF_SWAIT; 940 hpibawait(ctlr); 941 return; 942 } 943 } else 944 rs->sc_flags &= ~RDF_SWAIT; 945 rv = hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 946 if (rv != 1 || stat) { 947 #ifdef DEBUG 948 if (rddebug & RDB_ERROR) 949 printf("rdintr: recv failed or bad stat %d\n", stat); 950 #endif 951 restart = rderror(unit); 952 #ifdef DEBUG 953 rs->sc_stats.rdretries++; 954 #endif 955 if (rs->sc_errcnt++ < RDRETRY) { 956 if (restart) 957 rdstart(rs); 958 return; 959 } 960 bp->b_error = EIO; 961 } 962 if (rdfinish(rs, bp)) 963 rdustart(rs); 964 #if NRND > 0 965 rnd_add_uint32(&rs->rnd_source, bp->b_blkno); 966 #endif 967 } 968 969 static int 970 rdstatus(struct rd_softc *rs) 971 { 972 int c, s; 973 u_char stat; 974 int rv; 975 976 c = device_unit(device_parent(&rs->sc_dev)); 977 s = rs->sc_slave; 978 rs->sc_rsc.c_unit = C_SUNIT(rs->sc_punit); 979 rs->sc_rsc.c_sram = C_SRAM; 980 rs->sc_rsc.c_ram = C_RAM; 981 rs->sc_rsc.c_cmd = C_STATUS; 982 memset((void *)&rs->sc_stat, 0, sizeof(rs->sc_stat)); 983 rv = hpibsend(c, s, C_CMD, &rs->sc_rsc, sizeof(rs->sc_rsc)); 984 if (rv != sizeof(rs->sc_rsc)) { 985 #ifdef DEBUG 986 if (rddebug & RDB_STATUS) 987 printf("rdstatus: send C_CMD failed %d != %d\n", 988 rv, sizeof(rs->sc_rsc)); 989 #endif 990 return 1; 991 } 992 rv = hpibrecv(c, s, C_EXEC, &rs->sc_stat, sizeof(rs->sc_stat)); 993 if (rv != sizeof(rs->sc_stat)) { 994 #ifdef DEBUG 995 if (rddebug & RDB_STATUS) 996 printf("rdstatus: send C_EXEC failed %d != %d\n", 997 rv, sizeof(rs->sc_stat)); 998 #endif 999 return 1; 1000 } 1001 rv = hpibrecv(c, s, C_QSTAT, &stat, 1); 1002 if (rv != 1 || stat) { 1003 #ifdef DEBUG 1004 if (rddebug & RDB_STATUS) 1005 printf("rdstatus: recv failed %d or bad stat %d\n", 1006 rv, stat); 1007 #endif 1008 return 1; 1009 } 1010 return 0; 1011 } 1012 1013 /* 1014 * Deal with errors. 1015 * Returns 1 if request should be restarted, 1016 * 0 if we should just quietly give up. 1017 */ 1018 static int 1019 rderror(int unit) 1020 { 1021 struct rd_softc *rs = rd_cd.cd_devs[unit]; 1022 struct rd_stat *sp; 1023 struct buf *bp; 1024 daddr_t hwbn, pbn; 1025 char *hexstr(int, int); /* XXX */ 1026 1027 if (rdstatus(rs)) { 1028 #ifdef DEBUG 1029 printf("%s: couldn't get status\n", rs->sc_dev.dv_xname); 1030 #endif 1031 rdreset(rs); 1032 return 1; 1033 } 1034 sp = &rs->sc_stat; 1035 if (sp->c_fef & FEF_REXMT) 1036 return 1; 1037 if (sp->c_fef & FEF_PF) { 1038 rdreset(rs); 1039 return 1; 1040 } 1041 /* 1042 * Unit requests release for internal maintenance. 1043 * We just delay awhile and try again later. Use expontially 1044 * increasing backoff ala ethernet drivers since we don't really 1045 * know how long the maintenance will take. With RDWAITC and 1046 * RDRETRY as defined, the range is 1 to 32 seconds. 1047 */ 1048 if (sp->c_fef & FEF_IMR) { 1049 extern int hz; 1050 int rdtimo = RDWAITC << rs->sc_errcnt; 1051 #ifdef DEBUG 1052 printf("%s: internal maintenance, %d second timeout\n", 1053 rs->sc_dev.dv_xname, rdtimo); 1054 rs->sc_stats.rdtimeouts++; 1055 #endif 1056 hpibfree(device_parent(&rs->sc_dev), &rs->sc_hq); 1057 callout_reset(&rs->sc_restart_ch, rdtimo * hz, rdrestart, rs); 1058 return 0; 1059 } 1060 /* 1061 * Only report error if we have reached the error reporting 1062 * threshhold. By default, this will only report after the 1063 * retry limit has been exceeded. 1064 */ 1065 if (rs->sc_errcnt < rderrthresh) 1066 return 1; 1067 1068 /* 1069 * First conjure up the block number at which the error occurred. 1070 * Note that not all errors report a block number, in that case 1071 * we just use b_blkno. 1072 */ 1073 bp = BUFQ_PEEK(rs->sc_tab); 1074 pbn = rs->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)].p_offset; 1075 if ((sp->c_fef & FEF_CU) || (sp->c_fef & FEF_DR) || 1076 (sp->c_ief & IEF_RRMASK)) { 1077 hwbn = RDBTOS(pbn + bp->b_blkno); 1078 pbn = bp->b_blkno; 1079 } else { 1080 hwbn = sp->c_blk; 1081 pbn = RDSTOB(hwbn) - pbn; 1082 } 1083 /* 1084 * Now output a generic message suitable for badsect. 1085 * Note that we don't use harderr cuz it just prints 1086 * out b_blkno which is just the beginning block number 1087 * of the transfer, not necessary where the error occurred. 1088 */ 1089 printf("%s%c: hard error sn%" PRId64 "\n", rs->sc_dev.dv_xname, 1090 'a'+rdpart(bp->b_dev), pbn); 1091 /* 1092 * Now report the status as returned by the hardware with 1093 * attempt at interpretation (unless debugging). 1094 */ 1095 printf("%s %s error:", rs->sc_dev.dv_xname, 1096 (bp->b_flags & B_READ) ? "read" : "write"); 1097 #ifdef DEBUG 1098 if (rddebug & RDB_ERROR) { 1099 /* status info */ 1100 printf("\n volume: %d, unit: %d\n", 1101 (sp->c_vu>>4)&0xF, sp->c_vu&0xF); 1102 rdprinterr("reject", sp->c_ref, err_reject); 1103 rdprinterr("fault", sp->c_fef, err_fault); 1104 rdprinterr("access", sp->c_aef, err_access); 1105 rdprinterr("info", sp->c_ief, err_info); 1106 printf(" block: %lld, P1-P10: ", hwbn); 1107 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1108 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1109 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1110 /* command */ 1111 printf(" ioc: "); 1112 printf("0x%x", *(u_int *)&rs->sc_ioc.c_pad); 1113 printf("0x%x", *(u_short *)&rs->sc_ioc.c_hiaddr); 1114 printf("0x%x", *(u_int *)&rs->sc_ioc.c_addr); 1115 printf("0x%x", *(u_short *)&rs->sc_ioc.c_nop2); 1116 printf("0x%x", *(u_int *)&rs->sc_ioc.c_len); 1117 printf("0x%x\n", *(u_short *)&rs->sc_ioc.c_cmd); 1118 return 1; 1119 } 1120 #endif 1121 printf(" v%d u%d, R0x%x F0x%x A0x%x I0x%x\n", 1122 (sp->c_vu>>4)&0xF, sp->c_vu&0xF, 1123 sp->c_ref, sp->c_fef, sp->c_aef, sp->c_ief); 1124 printf("P1-P10: "); 1125 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1126 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1127 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1128 return 1; 1129 } 1130 1131 static int 1132 rdread(dev_t dev, struct uio *uio, int flags) 1133 { 1134 1135 return physio(rdstrategy, NULL, dev, B_READ, minphys, uio); 1136 } 1137 1138 static int 1139 rdwrite(dev_t dev, struct uio *uio, int flags) 1140 { 1141 1142 return physio(rdstrategy, NULL, dev, B_WRITE, minphys, uio); 1143 } 1144 1145 static int 1146 rdioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 1147 { 1148 int unit = rdunit(dev); 1149 struct rd_softc *sc = rd_cd.cd_devs[unit]; 1150 struct disklabel *lp = sc->sc_dkdev.dk_label; 1151 int error, flags; 1152 1153 switch (cmd) { 1154 case DIOCGDINFO: 1155 *(struct disklabel *)data = *lp; 1156 return 0; 1157 1158 case DIOCGPART: 1159 ((struct partinfo *)data)->disklab = lp; 1160 ((struct partinfo *)data)->part = 1161 &lp->d_partitions[rdpart(dev)]; 1162 return 0; 1163 1164 case DIOCWLABEL: 1165 if ((flag & FWRITE) == 0) 1166 return EBADF; 1167 if (*(int *)data) 1168 sc->sc_flags |= RDF_WLABEL; 1169 else 1170 sc->sc_flags &= ~RDF_WLABEL; 1171 return 0; 1172 1173 case DIOCSDINFO: 1174 if ((flag & FWRITE) == 0) 1175 return EBADF; 1176 return setdisklabel(lp, (struct disklabel *)data, 1177 (sc->sc_flags & RDF_WLABEL) ? 0 : sc->sc_dkdev.dk_openmask, 1178 NULL); 1179 1180 case DIOCWDINFO: 1181 if ((flag & FWRITE) == 0) 1182 return EBADF; 1183 error = setdisklabel(lp, (struct disklabel *)data, 1184 (sc->sc_flags & RDF_WLABEL) ? 0 : sc->sc_dkdev.dk_openmask, 1185 NULL); 1186 if (error) 1187 return error; 1188 flags = sc->sc_flags; 1189 sc->sc_flags = RDF_ALIVE | RDF_WLABEL; 1190 error = writedisklabel(rdlabdev(dev), rdstrategy, lp, NULL); 1191 sc->sc_flags = flags; 1192 return error; 1193 1194 case DIOCGDEFLABEL: 1195 rdgetdefaultlabel(sc, (struct disklabel *)data); 1196 return 0; 1197 } 1198 return EINVAL; 1199 } 1200 1201 static void 1202 rdgetdefaultlabel(struct rd_softc *sc, struct disklabel *lp) 1203 { 1204 int type = sc->sc_type; 1205 1206 memset((void *)lp, 0, sizeof(struct disklabel)); 1207 1208 lp->d_type = DTYPE_HPIB; 1209 lp->d_secsize = DEV_BSIZE; 1210 lp->d_nsectors = rdidentinfo[type].ri_nbpt; 1211 lp->d_ntracks = rdidentinfo[type].ri_ntpc; 1212 lp->d_ncylinders = rdidentinfo[type].ri_ncyl; 1213 lp->d_secperunit = rdidentinfo[type].ri_nblocks; 1214 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1215 1216 strlcpy(lp->d_typename, rdidentinfo[type].ri_desc, 1217 sizeof(lp->d_typename)); 1218 strlcpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 1219 lp->d_rpm = 3000; 1220 lp->d_interleave = 1; 1221 lp->d_flags = 0; 1222 1223 lp->d_partitions[RAW_PART].p_offset = 0; 1224 lp->d_partitions[RAW_PART].p_size = 1225 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1226 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1227 lp->d_npartitions = RAW_PART + 1; 1228 1229 lp->d_magic = DISKMAGIC; 1230 lp->d_magic2 = DISKMAGIC; 1231 lp->d_checksum = dkcksum(lp); 1232 } 1233 1234 int 1235 rdsize(dev_t dev) 1236 { 1237 int unit = rdunit(dev); 1238 struct rd_softc *rs; 1239 int psize, didopen = 0; 1240 1241 if (unit >= rd_cd.cd_ndevs || 1242 (rs = rd_cd.cd_devs[unit]) == NULL || 1243 (rs->sc_flags & RDF_ALIVE) == 0) 1244 return -1; 1245 1246 /* 1247 * We get called very early on (via swapconf) 1248 * without the device being open so we may need 1249 * to handle it here. 1250 */ 1251 if (rs->sc_dkdev.dk_openmask == 0) { 1252 if (rdopen(dev, FREAD|FWRITE, S_IFBLK, NULL)) 1253 return -1; 1254 didopen = 1; 1255 } 1256 psize = rs->sc_dkdev.dk_label->d_partitions[rdpart(dev)].p_size * 1257 (rs->sc_dkdev.dk_label->d_secsize / DEV_BSIZE); 1258 if (didopen) 1259 (void)rdclose(dev, FREAD|FWRITE, S_IFBLK, NULL); 1260 return psize; 1261 } 1262 1263 #ifdef DEBUG 1264 static void 1265 rdprinterr(const char *str, short err, const char **tab) 1266 { 1267 int i; 1268 int printed; 1269 1270 if (err == 0) 1271 return; 1272 printf(" %s error %d field:", str, err); 1273 printed = 0; 1274 for (i = 0; i < 16; i++) 1275 if (err & (0x8000 >> i)) 1276 printf("%s%s", printed++ ? " + " : " ", tab[i]); 1277 printf("\n"); 1278 } 1279 #endif 1280 1281 static int rddoingadump; /* simple mutex */ 1282 1283 /* 1284 * Non-interrupt driven, non-DMA dump routine. 1285 */ 1286 static int 1287 rddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1288 { 1289 int sectorsize; /* size of a disk sector */ 1290 int nsects; /* number of sectors in partition */ 1291 int sectoff; /* sector offset of partition */ 1292 int totwrt; /* total number of sectors left to write */ 1293 int nwrt; /* current number of sectors to write */ 1294 int unit, part; 1295 int ctlr, slave; 1296 struct rd_softc *rs; 1297 struct disklabel *lp; 1298 char stat; 1299 1300 /* Check for recursive dump; if so, punt. */ 1301 if (rddoingadump) 1302 return EFAULT; 1303 rddoingadump = 1; 1304 1305 /* Decompose unit and partition. */ 1306 unit = rdunit(dev); 1307 part = rdpart(dev); 1308 1309 /* Make sure dump device is ok. */ 1310 if (unit >= rd_cd.cd_ndevs || 1311 (rs = rd_cd.cd_devs[unit]) == NULL || 1312 (rs->sc_flags & RDF_ALIVE) == 0) 1313 return ENXIO; 1314 1315 ctlr = device_unit(device_parent(&rs->sc_dev)); 1316 slave = rs->sc_slave; 1317 1318 /* 1319 * Convert to disk sectors. Request must be a multiple of size. 1320 */ 1321 lp = rs->sc_dkdev.dk_label; 1322 sectorsize = lp->d_secsize; 1323 if ((size % sectorsize) != 0) 1324 return EFAULT; 1325 totwrt = size / sectorsize; 1326 blkno = dbtob(blkno) / sectorsize; /* blkno in DEV_BSIZE units */ 1327 1328 nsects = lp->d_partitions[part].p_size; 1329 sectoff = lp->d_partitions[part].p_offset; 1330 1331 /* Check transfer bounds against partition size. */ 1332 if ((blkno < 0) || (blkno + totwrt) > nsects) 1333 return EINVAL; 1334 1335 /* Offset block number to start of partition. */ 1336 blkno += sectoff; 1337 1338 while (totwrt > 0) { 1339 nwrt = totwrt; /* XXX */ 1340 #ifndef RD_DUMP_NOT_TRUSTED 1341 /* 1342 * Fill out and send HPIB command. 1343 */ 1344 rs->sc_ioc.c_unit = C_SUNIT(rs->sc_punit); 1345 rs->sc_ioc.c_volume = C_SVOL(0); 1346 rs->sc_ioc.c_saddr = C_SADDR; 1347 rs->sc_ioc.c_hiaddr = 0; 1348 rs->sc_ioc.c_addr = RDBTOS(blkno); 1349 rs->sc_ioc.c_nop2 = C_NOP; 1350 rs->sc_ioc.c_slen = C_SLEN; 1351 rs->sc_ioc.c_len = nwrt * sectorsize; 1352 rs->sc_ioc.c_cmd = C_WRITE; 1353 hpibsend(ctlr, slave, C_CMD, &rs->sc_ioc.c_unit, 1354 sizeof(rs->sc_ioc)-2); 1355 if (hpibswait(ctlr, slave)) 1356 return EIO; 1357 1358 /* 1359 * Send the data. 1360 */ 1361 hpibsend(ctlr, slave, C_EXEC, va, nwrt * sectorsize); 1362 (void) hpibswait(ctlr, slave); 1363 hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 1364 if (stat) 1365 return EIO; 1366 #else /* RD_DUMP_NOT_TRUSTED */ 1367 /* Let's just talk about this first... */ 1368 printf("%s: dump addr %p, blk %d\n", sc->sc_dev.dv_xname, 1369 va, blkno); 1370 delay(500 * 1000); /* half a second */ 1371 #endif /* RD_DUMP_NOT_TRUSTED */ 1372 1373 /* update block count */ 1374 totwrt -= nwrt; 1375 blkno += nwrt; 1376 va = (char *)va + sectorsize * nwrt; 1377 } 1378 rddoingadump = 0; 1379 return 0; 1380 } 1381
Indexes created Tue Sep 30 11:09:46 GMT 2025