rd.c revision 1.112
1 /* $NetBSD: rd.c,v 1.112 2022/11/23 18:53:22 tsutsui 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1988 University of Utah. 34 * Copyright (c) 1982, 1990, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * This code is derived from software contributed to Berkeley by 38 * the Systems Programming Group of the University of Utah Computer 39 * Science Department. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * from: Utah $Hdr: rd.c 1.44 92/12/26$ 66 * 67 * @(#)rd.c 8.2 (Berkeley) 5/19/94 68 */ 69 70 /* 71 * CS80/SS80 disk driver 72 */ 73 74 #include <sys/cdefs.h> 75 __KERNEL_RCSID(0, "$NetBSD: rd.c,v 1.112 2022/11/23 18:53:22 tsutsui Exp $"); 76 77 #include "opt_useleds.h" 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/buf.h> 82 #include <sys/bufq.h> 83 #include <sys/conf.h> 84 #include <sys/device.h> 85 #include <sys/disk.h> 86 #include <sys/disklabel.h> 87 #include <sys/fcntl.h> 88 #include <sys/ioctl.h> 89 #include <sys/proc.h> 90 #include <sys/stat.h> 91 92 #include <sys/rndsource.h> 93 94 #include <hp300/dev/hpibvar.h> 95 96 #include <hp300/dev/rdreg.h> 97 #include <hp300/dev/rdvar.h> 98 99 #ifdef USELEDS 100 #include <hp300/hp300/leds.h> 101 #endif 102 103 #include "ioconf.h" 104 105 int rderrthresh = RDRETRY-1; /* when to start reporting errors */ 106 107 #ifdef DEBUG 108 /* error message tables */ 109 static const char *err_reject[] = { 110 0, 0, 111 "channel parity error", /* 0x2000 */ 112 0, 0, 113 "illegal opcode", /* 0x0400 */ 114 "module addressing", /* 0x0200 */ 115 "address bounds", /* 0x0100 */ 116 "parameter bounds", /* 0x0080 */ 117 "illegal parameter", /* 0x0040 */ 118 "message sequence", /* 0x0020 */ 119 0, 120 "message length", /* 0x0008 */ 121 0, 0, 0 122 }; 123 124 static const char *err_fault[] = { 125 0, 126 "cross unit", /* 0x4000 */ 127 0, 128 "controller fault", /* 0x1000 */ 129 0, 0, 130 "unit fault", /* 0x0200 */ 131 0, 132 "diagnostic result", /* 0x0080 */ 133 0, 134 "operator release request", /* 0x0020 */ 135 "diagnostic release request", /* 0x0010 */ 136 "internal maintenance release request", /* 0x0008 */ 137 0, 138 "power fail", /* 0x0002 */ 139 "retransmit" /* 0x0001 */ 140 }; 141 142 static const char *err_access[] = { 143 "illegal parallel operation", /* 0x8000 */ 144 "uninitialized media", /* 0x4000 */ 145 "no spares available", /* 0x2000 */ 146 "not ready", /* 0x1000 */ 147 "write protect", /* 0x0800 */ 148 "no data found", /* 0x0400 */ 149 0, 0, 150 "unrecoverable data overflow", /* 0x0080 */ 151 "unrecoverable data", /* 0x0040 */ 152 0, 153 "end of file", /* 0x0010 */ 154 "end of volume", /* 0x0008 */ 155 0, 0, 0 156 }; 157 158 static const char *err_info[] = { 159 "operator release request", /* 0x8000 */ 160 "diagnostic release request", /* 0x4000 */ 161 "internal maintenance release request", /* 0x2000 */ 162 "media wear", /* 0x1000 */ 163 "latency induced", /* 0x0800 */ 164 0, 0, 165 "auto sparing invoked", /* 0x0100 */ 166 0, 167 "recoverable data overflow", /* 0x0040 */ 168 "marginal data", /* 0x0020 */ 169 "recoverable data", /* 0x0010 */ 170 0, 171 "maintenance track overflow", /* 0x0004 */ 172 0, 0 173 }; 174 175 #define RDB_FOLLOW 0x01 176 #define RDB_STATUS 0x02 177 #define RDB_IDENT 0x04 178 #define RDB_IO 0x08 179 #define RDB_ASYNC 0x10 180 #define RDB_ERROR 0x80 181 int rddebug = RDB_ERROR | RDB_IDENT; 182 #endif 183 184 /* 185 * Misc. HW description, indexed by sc_type. 186 * Nothing really critical here, could do without it. 187 */ 188 static const struct rdidentinfo rdidentinfo[] = { 189 [RD7945A] = { 190 .ri_hwid = RD7946AID, 191 .ri_desc = "7945A", 192 .ri_nbpt = NRD7945ABPT, 193 .ri_ntpc = NRD7945ATRK, 194 .ri_ncyl = NRD7945ACYL, 195 .ri_nblocks = NRD7945ABLK 196 }, 197 198 [RD9134D] = { 199 .ri_hwid = RD9134DID, 200 .ri_desc = "9134D", 201 .ri_nbpt = NRD9134DBPT, 202 .ri_ntpc = NRD9134DTRK, 203 .ri_ncyl = NRD9134DCYL, 204 .ri_nblocks = NRD9134DBLK 205 }, 206 207 [RD9122S] = { 208 .ri_hwid = RD9134LID, 209 .ri_desc = "9122S", 210 .ri_nbpt = NRD9122SBPT, 211 .ri_ntpc = NRD9122STRK, 212 .ri_ncyl = NRD9122SCYL, 213 .ri_nblocks = NRD9122SBLK 214 }, 215 216 [RD7912P] = { 217 .ri_hwid = RD7912PID, 218 .ri_desc = "7912P", 219 .ri_nbpt = NRD7912PBPT, 220 .ri_ntpc = NRD7912PTRK, 221 .ri_ncyl = NRD7912PCYL, 222 .ri_nblocks = NRD7912PBLK 223 }, 224 225 [RD7914P] = { 226 .ri_hwid = RD7914PID, 227 .ri_desc = "7914P", 228 .ri_nbpt = NRD7914PBPT, 229 .ri_ntpc = NRD7914PTRK, 230 .ri_ncyl = NRD7914PCYL, 231 .ri_nblocks = NRD7914PBLK 232 }, 233 234 [RD7958A] = { 235 .ri_hwid = RD7958AID, 236 .ri_desc = "7958A", 237 .ri_nbpt = NRD7958ABPT, 238 .ri_ntpc = NRD7958ATRK, 239 .ri_ncyl = NRD7958ACYL, 240 .ri_nblocks = NRD7958ABLK 241 }, 242 243 [RD7957A] = { 244 .ri_hwid = RD7957AID, 245 .ri_desc = "7957A", 246 .ri_nbpt = NRD7957ABPT, 247 .ri_ntpc = NRD7957ATRK, 248 .ri_ncyl = NRD7957ACYL, 249 .ri_nblocks = NRD7957ABLK 250 }, 251 252 [RD7933H] = { 253 .ri_hwid = RD7933HID, 254 .ri_desc = "7933H", 255 .ri_nbpt = NRD7933HBPT, 256 .ri_ntpc = NRD7933HTRK, 257 .ri_ncyl = NRD7933HCYL, 258 .ri_nblocks = NRD7933HBLK 259 }, 260 261 [RD9134L] = { 262 .ri_hwid = RD9134LID, 263 .ri_desc = "9134L", 264 .ri_nbpt = NRD9134LBPT, 265 .ri_ntpc = NRD9134LTRK, 266 .ri_ncyl = NRD9134LCYL, 267 .ri_nblocks = NRD9134LBLK 268 }, 269 270 [RD7936H] = { 271 .ri_hwid = RD7936HID, 272 .ri_desc = "7936H", 273 .ri_nbpt = NRD7936HBPT, 274 .ri_ntpc = NRD7936HTRK, 275 .ri_ncyl = NRD7936HCYL, 276 .ri_nblocks = NRD7936HBLK 277 }, 278 279 [RD7937H] = { 280 .ri_hwid = RD7937HID, 281 .ri_desc = "7937H", 282 .ri_nbpt = NRD7937HBPT, 283 .ri_ntpc = NRD7937HTRK, 284 .ri_ncyl = NRD7937HCYL, 285 .ri_nblocks = NRD7937HBLK 286 }, 287 288 [RD7914CT] = { 289 .ri_hwid = RD7914CTID, 290 .ri_desc = "7914CT", 291 .ri_nbpt = NRD7914PBPT, 292 .ri_ntpc = NRD7914PTRK, 293 .ri_ncyl = NRD7914PCYL, 294 .ri_nblocks = NRD7914PBLK 295 }, 296 297 [RD7946A] = { 298 .ri_hwid = RD7946AID, 299 .ri_desc = "7946A", 300 .ri_nbpt = NRD7945ABPT, 301 .ri_ntpc = NRD7945ATRK, 302 .ri_ncyl = NRD7945ACYL, 303 .ri_nblocks = NRD7945ABLK 304 }, 305 306 [RD9122D] = { 307 .ri_hwid = RD9134LID, 308 .ri_desc = "9122D", 309 .ri_nbpt = NRD9122SBPT, 310 .ri_ntpc = NRD9122STRK, 311 .ri_ncyl = NRD9122SCYL, 312 .ri_nblocks = NRD9122SBLK 313 }, 314 315 [RD7957B] = { 316 .ri_hwid = RD7957BID, 317 .ri_desc = "7957B", 318 .ri_nbpt = NRD7957BBPT, 319 .ri_ntpc = NRD7957BTRK, 320 .ri_ncyl = NRD7957BCYL, 321 .ri_nblocks = NRD7957BBLK 322 }, 323 324 [RD7958B] = { 325 .ri_hwid = RD7958BID, 326 .ri_desc = "7958B", 327 .ri_nbpt = NRD7958BBPT, 328 .ri_ntpc = NRD7958BTRK, 329 .ri_ncyl = NRD7958BCYL, 330 .ri_nblocks = NRD7958BBLK 331 }, 332 333 [RD7959B] = { 334 .ri_hwid = RD7959BID, 335 .ri_desc = "7959B", 336 .ri_nbpt = NRD7959BBPT, 337 .ri_ntpc = NRD7959BTRK, 338 .ri_ncyl = NRD7959BCYL, 339 .ri_nblocks = NRD7959BBLK 340 }, 341 342 [RD2200A] = { 343 .ri_hwid = RD2200AID, 344 .ri_desc = "2200A", 345 .ri_nbpt = NRD2200ABPT, 346 .ri_ntpc = NRD2200ATRK, 347 .ri_ncyl = NRD2200ACYL, 348 .ri_nblocks = NRD2200ABLK 349 }, 350 351 [RD2203A] = { 352 .ri_hwid = RD2203AID, 353 .ri_desc = "2203A", 354 .ri_nbpt = NRD2203ABPT, 355 .ri_ntpc = NRD2203ATRK, 356 .ri_ncyl = NRD2203ACYL, 357 .ri_nblocks = NRD2203ABLK 358 }, 359 360 [RD2202A] = { 361 .ri_hwid = RD2202AID, 362 .ri_desc = "2202A", 363 .ri_nbpt = NRD2202ABPT, 364 .ri_ntpc = NRD2202ATRK, 365 .ri_ncyl = NRD2202ACYL, 366 .ri_nblocks = NRD2202ABLK 367 }, 368 369 [RD7908A] = { 370 .ri_hwid = RD7908AID, 371 .ri_desc = "7908A", 372 .ri_nbpt = NRD7908ABPT, 373 .ri_ntpc = NRD7908ATRK, 374 .ri_ncyl = NRD7908ACYL, 375 .ri_nblocks = NRD7908ABLK 376 }, 377 378 [RD7911A] = { 379 .ri_hwid = RD7911AID, 380 .ri_desc = "7911A", 381 .ri_nbpt = NRD7911ABPT, 382 .ri_ntpc = NRD7911ATRK, 383 .ri_ncyl = NRD7911ACYL, 384 .ri_nblocks = NRD7911ABLK 385 }, 386 387 [RD7941A] = { 388 .ri_hwid = RD7946AID, 389 .ri_desc = "7941A", 390 .ri_nbpt = NRD7941ABPT, 391 .ri_ntpc = NRD7941ATRK, 392 .ri_ncyl = NRD7941ACYL, 393 .ri_nblocks = NRD7941ABLK 394 } 395 }; 396 static const int numrdidentinfo = __arraycount(rdidentinfo); 397 398 struct rdname2id { 399 const char *rn_name; 400 int rn_id; 401 }; 402 static const struct rdname2id rdname2id[] = { 403 { RD7945ANAME, RD7945A }, 404 { RD9134DNAME, RD9134D }, 405 { RD7912PNAME, RD7912P }, 406 { RD7914PNAME, RD7914P }, 407 { RD7958ANAME, RD7958A }, 408 { RD7957ANAME, RD7957A }, 409 { RD7933HNAME, RD7933H }, 410 { RD9134LNAME, RD9134L }, 411 { RD7936HNAME, RD7936H }, 412 { RD7937HNAME, RD7937H }, 413 { RD7914CTNAME, RD7914CT }, 414 { RD9122DNAME, RD9122D }, 415 { RD7957BNAME, RD7957B }, 416 { RD7958BNAME, RD7958B }, 417 { RD7959BNAME, RD7959B }, 418 { RD2200ANAME, RD2200A }, 419 { RD2203ANAME, RD2203A }, 420 { RD2202ANAME, RD2202A }, 421 { RD7908ANAME, RD7908A }, 422 { RD7911ANAME, RD7911A }, 423 { RD7941ANAME, RD7941A } 424 }; 425 static const int numrdname2id = __arraycount(rdname2id); 426 427 static int rdident(device_t, struct rd_softc *, 428 struct hpibbus_attach_args *); 429 static void rdreset(struct rd_softc *); 430 static void rdreset_unit(int, int, int); 431 static void rdustart(struct rd_softc *); 432 static int rdgetinfo(dev_t); 433 static void rdrestart(void *); 434 static struct buf *rdfinish(struct rd_softc *, struct buf *); 435 436 static void rdgetdefaultlabel(struct rd_softc *, struct disklabel *); 437 static void rdrestart(void *); 438 static void rdustart(struct rd_softc *); 439 static struct buf *rdfinish(struct rd_softc *, struct buf *); 440 static void rdstart(void *); 441 static void rdgo(void *); 442 static void rdintr(void *); 443 static int rdstatus(struct rd_softc *); 444 static int rderror(int); 445 #ifdef DEBUG 446 static void rdprinterr(const char *, short, const char **); 447 #endif 448 449 static int rdmatch(device_t, cfdata_t, void *); 450 static void rdattach(device_t, device_t, void *); 451 452 CFATTACH_DECL_NEW(rd, sizeof(struct rd_softc), 453 rdmatch, rdattach, NULL, NULL); 454 455 static dev_type_open(rdopen); 456 static dev_type_close(rdclose); 457 static dev_type_read(rdread); 458 static dev_type_write(rdwrite); 459 static dev_type_ioctl(rdioctl); 460 static dev_type_strategy(rdstrategy); 461 static dev_type_dump(rddump); 462 static dev_type_size(rdsize); 463 464 const struct bdevsw rd_bdevsw = { 465 .d_open = rdopen, 466 .d_close = rdclose, 467 .d_strategy = rdstrategy, 468 .d_ioctl = rdioctl, 469 .d_dump = rddump, 470 .d_psize = rdsize, 471 .d_discard = nodiscard, 472 .d_flag = D_DISK 473 }; 474 475 const struct cdevsw rd_cdevsw = { 476 .d_open = rdopen, 477 .d_close = rdclose, 478 .d_read = rdread, 479 .d_write = rdwrite, 480 .d_ioctl = rdioctl, 481 .d_stop = nostop, 482 .d_tty = notty, 483 .d_poll = nopoll, 484 .d_mmap = nommap, 485 .d_kqfilter = nokqfilter, 486 .d_discard = nodiscard, 487 .d_flag = D_DISK 488 }; 489 490 static int 491 rdmatch(device_t parent, cfdata_t cf, void *aux) 492 { 493 struct hpibbus_attach_args *ha = aux; 494 495 return rdident(parent, NULL, ha); 496 } 497 498 static void 499 rdattach(device_t parent, device_t self, void *aux) 500 { 501 struct rd_softc *sc = device_private(self); 502 struct hpibbus_attach_args *ha = aux; 503 int id; 504 char pbuf[9]; 505 506 sc->sc_dev = self; 507 bufq_alloc(&sc->sc_tab, "disksort", BUFQ_SORT_RAWBLOCK); 508 509 if (rdident(parent, sc, ha) == 0) { 510 aprint_error(": didn't respond to describe command!\n"); 511 return; 512 } 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 id = sc->sc_type; 520 aprint_normal(": %s\n", rdidentinfo[id].ri_desc); 521 format_bytes(pbuf, sizeof(pbuf), 522 rdidentinfo[id].ri_nblocks * DEV_BSIZE); 523 aprint_normal_dev(sc->sc_dev, "%s, %d cyl, %d head, %d sec," 524 " %d bytes/block x %u blocks\n", 525 pbuf, rdidentinfo[id].ri_ncyl, rdidentinfo[id].ri_ntpc, 526 rdidentinfo[id].ri_nbpt, 527 DEV_BSIZE, rdidentinfo[id].ri_nblocks); 528 529 /* 530 * Initialize and attach the disk structure. 531 */ 532 memset(&sc->sc_dkdev, 0, sizeof(sc->sc_dkdev)); 533 disk_init(&sc->sc_dkdev, device_xname(sc->sc_dev), NULL); 534 disk_attach(&sc->sc_dkdev); 535 536 sc->sc_slave = ha->ha_slave; 537 sc->sc_punit = ha->ha_punit; 538 539 callout_init(&sc->sc_restart_ch, 0); 540 541 /* Initialize the hpib job queue entry */ 542 sc->sc_hq.hq_softc = sc; 543 sc->sc_hq.hq_slave = sc->sc_slave; 544 sc->sc_hq.hq_start = rdstart; 545 sc->sc_hq.hq_go = rdgo; 546 sc->sc_hq.hq_intr = rdintr; 547 548 sc->sc_flags = RDF_ALIVE; 549 #ifdef DEBUG 550 /* always report errors */ 551 if (rddebug & RDB_ERROR) 552 rderrthresh = 0; 553 #endif 554 /* 555 * attach the device into the random source list 556 */ 557 rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev), 558 RND_TYPE_DISK, RND_FLAG_DEFAULT); 559 } 560 561 static int 562 rdident(device_t parent, struct rd_softc *sc, struct hpibbus_attach_args *ha) 563 { 564 struct cs80_describe desc; 565 u_char stat, cmd[3]; 566 char name[7]; 567 int i, id, n, ctlr, slave; 568 569 ctlr = device_unit(parent); 570 slave = ha->ha_slave; 571 572 /* Verify that we have a CS80 device. */ 573 if ((ha->ha_id & 0x200) == 0) 574 return 0; 575 576 /* Is it one of the disks we support? */ 577 for (id = 0; id < numrdidentinfo; id++) 578 if (ha->ha_id == rdidentinfo[id].ri_hwid) 579 break; 580 if (id == numrdidentinfo) 581 return 0; 582 583 /* 584 * The supported dvice ID is probed. 585 * Check if the specified physical unit is actually supported 586 * by brandnew HP-IB emulator devices like HPDisk and HPDrive etc. 587 */ 588 /* 589 * Reset device and collect description 590 */ 591 memset(&desc, 0, sizeof(desc)); 592 stat = 0; 593 rdreset_unit(ctlr, slave, ha->ha_punit); 594 cmd[0] = C_SUNIT(ha->ha_punit); 595 cmd[1] = C_SVOL(0); 596 cmd[2] = C_DESC; 597 hpibsend(ctlr, slave, C_CMD, cmd, sizeof(cmd)); 598 hpibrecv(ctlr, slave, C_EXEC, &desc, sizeof(desc)); 599 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 600 601 if (stat != 0 || desc.d_name == 0) { 602 /* 603 * No valid response from the specified punit. 604 * 605 * Note it looks HPDisk responds to commands against 606 * supported but not-configured punits at 1 to 3. 607 */ 608 return 0; 609 } 610 611 /* 612 * If we're just probing for the device, that's all the 613 * work we need to do. 614 */ 615 if (sc == NULL) 616 return 1; 617 618 memset(name, 0, sizeof(name)); 619 n = desc.d_name; 620 for (i = 5; i >= 0; i--) { 621 name[i] = (n & 0xf) + '0'; 622 n >>= 4; 623 } 624 625 #ifdef DEBUG 626 if (rddebug & RDB_IDENT) { 627 aprint_normal("\n"); 628 aprint_normal_dev(sc->sc_dev, "id: 0x%04x, name: %x ('%s')\n", 629 ha->ha_id, desc.d_name, name); 630 aprint_normal(" iuw %x, maxxfr %d, ctype %d\n", 631 desc.d_iuw, desc.d_cmaxxfr, desc.d_ctype); 632 aprint_normal(" utype %d, bps %d, blkbuf %d, burst %d," 633 " blktime %d\n", 634 desc.d_utype, desc.d_sectsize, 635 desc.d_blkbuf, desc.d_burstsize, desc.d_blocktime); 636 aprint_normal(" avxfr %d, ort %d, atp %d, maxint %d, fv %x" 637 ", rv %x\n", 638 desc.d_uavexfr, desc.d_retry, desc.d_access, 639 desc.d_maxint, desc.d_fvbyte, desc.d_rvbyte); 640 aprint_normal(" maxcyl/head/sect %d/%d/%d, maxvsect %d," 641 " inter %d\n", 642 desc.d_maxcyl, desc.d_maxhead, desc.d_maxsect, 643 desc.d_maxvsectl, desc.d_interleave); 644 aprint_normal("%s", device_xname(sc->sc_dev)); 645 } 646 #endif 647 648 /* 649 * Take care of a couple of anomolies: 650 * 1. 7945A, 7946A, and 7941A all return same HW id 651 * 2. 9122S and 9134D both return same HW id 652 * 3. 9122D and 9134L both return same HW id 653 */ 654 switch (ha->ha_id) { 655 case RD7946AID: 656 if (memcmp(name, RD7945ANAME, RDNAMELEN) == 0) 657 id = RD7945A; 658 else if (memcmp(name, RD7941ANAME, RDNAMELEN) == 0) 659 id = RD7941A; 660 else 661 id = RD7946A; 662 break; 663 664 case RD9134LID: 665 if (memcmp(name, RD9134LNAME, RDNAMELEN) == 0) 666 id = RD9134L; 667 else 668 id = RD9122D; 669 break; 670 671 case RD9134DID: 672 if (memcmp(name, RD9122SNAME, RDNAMELEN) == 0) 673 id = RD9122S; 674 else 675 id = RD9134D; 676 break; 677 } 678 679 /* 680 * HPDisk can have independent physical units that are not 681 * corresponding to device IDs. 682 * To handle this, we have to check names in the drive description 683 * data for punit >= 1. 684 */ 685 if (ha->ha_punit >= 1) { 686 for (i = 0; i < numrdname2id; i++) { 687 if (memcmp(name, rdname2id[i].rn_name, 688 RDNAMELEN) == 0) { 689 id = rdname2id[i].rn_id; 690 break; 691 } 692 } 693 } 694 695 sc->sc_type = id; 696 697 return 1; 698 } 699 700 static void 701 rdreset(struct rd_softc *sc) 702 { 703 int ctlr, slave, punit; 704 705 ctlr = device_unit(device_parent(sc->sc_dev)); 706 slave = sc->sc_slave; 707 punit = sc->sc_punit; 708 rdreset_unit(ctlr, slave, punit); 709 #ifdef DEBUG 710 sc->sc_stats.rdresets++; 711 #endif 712 } 713 714 static void 715 rdreset_unit(int ctlr, int slave, int punit) 716 { 717 struct rd_ssmcmd ssmc; 718 struct rd_srcmd src; 719 struct rd_clearcmd clear; 720 u_char stat; 721 722 clear.c_unit = C_SUNIT(punit); 723 clear.c_cmd = C_CLEAR; 724 hpibsend(ctlr, slave, C_TCMD, &clear, sizeof(clear)); 725 hpibswait(ctlr, slave); 726 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 727 728 src.c_unit = C_SUNIT(RDCTLR); 729 src.c_nop = C_NOP; 730 src.c_cmd = C_SREL; 731 src.c_param = C_REL; 732 hpibsend(ctlr, slave, C_CMD, &src, sizeof(src)); 733 hpibswait(ctlr, slave); 734 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 735 736 ssmc.c_unit = C_SUNIT(punit); 737 ssmc.c_cmd = C_SSM; 738 ssmc.c_refm = REF_MASK; 739 ssmc.c_fefm = FEF_MASK; 740 ssmc.c_aefm = AEF_MASK; 741 ssmc.c_iefm = IEF_MASK; 742 hpibsend(ctlr, slave, C_CMD, &ssmc, sizeof(ssmc)); 743 hpibswait(ctlr, slave); 744 hpibrecv(ctlr, slave, C_QSTAT, &stat, sizeof(stat)); 745 } 746 747 /* 748 * Read or construct a disklabel 749 */ 750 static int 751 rdgetinfo(dev_t dev) 752 { 753 struct rd_softc *sc = device_lookup_private(&rd_cd, rdunit(dev)); 754 struct disklabel *lp = sc->sc_dkdev.dk_label; 755 struct partition *pi; 756 const char *msg; 757 758 /* 759 * Set some default values to use while reading the label 760 * or to use if there isn't a label. 761 */ 762 memset((void *)lp, 0, sizeof *lp); 763 rdgetdefaultlabel(sc, lp); 764 765 /* 766 * Now try to read the disklabel 767 */ 768 msg = readdisklabel(rdlabdev(dev), rdstrategy, lp, NULL); 769 if (msg == NULL) 770 return 0; 771 772 pi = lp->d_partitions; 773 printf("%s: WARNING: %s\n", device_xname(sc->sc_dev), msg); 774 775 pi[2].p_size = rdidentinfo[sc->sc_type].ri_nblocks; 776 /* XXX reset other info since readdisklabel screws with it */ 777 lp->d_npartitions = 3; 778 pi[0].p_size = 0; 779 780 return 0; 781 } 782 783 static int 784 rdopen(dev_t dev, int flags, int mode, struct lwp *l) 785 { 786 struct rd_softc *sc; 787 int error, mask, part; 788 789 sc = device_lookup_private(&rd_cd, rdunit(dev)); 790 if (sc == NULL) 791 return ENXIO; 792 793 if ((sc->sc_flags & RDF_ALIVE) == 0) 794 return ENXIO; 795 796 /* 797 * Wait for any pending opens/closes to complete 798 */ 799 while (sc->sc_flags & (RDF_OPENING|RDF_CLOSING)) 800 (void) tsleep(sc, PRIBIO, "rdopen", 0); 801 802 /* 803 * On first open, get label and partition info. 804 * We may block reading the label, so be careful 805 * to stop any other opens. 806 */ 807 if (sc->sc_dkdev.dk_openmask == 0) { 808 sc->sc_flags |= RDF_OPENING; 809 error = rdgetinfo(dev); 810 sc->sc_flags &= ~RDF_OPENING; 811 wakeup((void *)sc); 812 if (error) 813 return error; 814 } 815 816 part = rdpart(dev); 817 mask = 1 << part; 818 819 /* Check that the partition exists. */ 820 if (part != RAW_PART && 821 (part > sc->sc_dkdev.dk_label->d_npartitions || 822 sc->sc_dkdev.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) 823 return ENXIO; 824 825 /* Ensure only one open at a time. */ 826 switch (mode) { 827 case S_IFCHR: 828 sc->sc_dkdev.dk_copenmask |= mask; 829 break; 830 case S_IFBLK: 831 sc->sc_dkdev.dk_bopenmask |= mask; 832 break; 833 } 834 sc->sc_dkdev.dk_openmask = 835 sc->sc_dkdev.dk_copenmask | sc->sc_dkdev.dk_bopenmask; 836 837 return 0; 838 } 839 840 static int 841 rdclose(dev_t dev, int flag, int mode, struct lwp *l) 842 { 843 struct rd_softc *sc = device_lookup_private(&rd_cd, rdunit(dev)); 844 struct disk *dk = &sc->sc_dkdev; 845 int mask, s; 846 847 mask = 1 << rdpart(dev); 848 if (mode == S_IFCHR) 849 dk->dk_copenmask &= ~mask; 850 else 851 dk->dk_bopenmask &= ~mask; 852 dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; 853 /* 854 * On last close, we wait for all activity to cease since 855 * the label/partition info will become invalid. Since we 856 * might sleep, we must block any opens while we are here. 857 * Note we don't have to about other closes since we know 858 * we are the last one. 859 */ 860 if (dk->dk_openmask == 0) { 861 sc->sc_flags |= RDF_CLOSING; 862 s = splbio(); 863 while (sc->sc_active) { 864 sc->sc_flags |= RDF_WANTED; 865 (void) tsleep(&sc->sc_tab, PRIBIO, "rdclose", 0); 866 } 867 splx(s); 868 sc->sc_flags &= ~(RDF_CLOSING|RDF_WLABEL); 869 wakeup((void *)sc); 870 } 871 return 0; 872 } 873 874 static void 875 rdstrategy(struct buf *bp) 876 { 877 struct rd_softc *sc = device_lookup_private(&rd_cd, rdunit(bp->b_dev)); 878 struct partition *pinfo; 879 daddr_t bn; 880 int sz, s; 881 int offset; 882 883 #ifdef DEBUG 884 if (rddebug & RDB_FOLLOW) 885 printf("rdstrategy(%p): dev %"PRIx64", bn %llx, bcount %x, %c\n", 886 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 887 (bp->b_flags & B_READ) ? 'R' : 'W'); 888 #endif 889 bn = bp->b_blkno; 890 sz = howmany(bp->b_bcount, DEV_BSIZE); 891 pinfo = &sc->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)]; 892 893 /* Don't perform partition translation on RAW_PART. */ 894 offset = (rdpart(bp->b_dev) == RAW_PART) ? 0 : pinfo->p_offset; 895 896 if (rdpart(bp->b_dev) != RAW_PART) { 897 /* 898 * XXX This block of code belongs in 899 * XXX bounds_check_with_label() 900 */ 901 902 if (bn < 0 || bn + sz > pinfo->p_size) { 903 sz = pinfo->p_size - bn; 904 if (sz == 0) { 905 bp->b_resid = bp->b_bcount; 906 goto done; 907 } 908 if (sz < 0) { 909 bp->b_error = EINVAL; 910 goto done; 911 } 912 bp->b_bcount = dbtob(sz); 913 } 914 /* 915 * Check for write to write protected label 916 */ 917 if (bn + offset <= LABELSECTOR && 918 #if LABELSECTOR != 0 919 bn + offset + sz > LABELSECTOR && 920 #endif 921 !(bp->b_flags & B_READ) && !(sc->sc_flags & RDF_WLABEL)) { 922 bp->b_error = EROFS; 923 goto done; 924 } 925 } 926 bp->b_rawblkno = bn + offset; 927 s = splbio(); 928 bufq_put(sc->sc_tab, bp); 929 if (sc->sc_active == 0) { 930 sc->sc_active = 1; 931 rdustart(sc); 932 } 933 splx(s); 934 return; 935 done: 936 biodone(bp); 937 } 938 939 /* 940 * Called from timeout() when handling maintenance releases 941 */ 942 static void 943 rdrestart(void *arg) 944 { 945 int s = splbio(); 946 rdustart((struct rd_softc *)arg); 947 splx(s); 948 } 949 950 static void 951 rdustart(struct rd_softc *sc) 952 { 953 struct buf *bp; 954 955 bp = bufq_peek(sc->sc_tab); 956 sc->sc_addr = bp->b_data; 957 sc->sc_resid = bp->b_bcount; 958 if (hpibreq(device_parent(sc->sc_dev), &sc->sc_hq)) 959 rdstart(sc); 960 } 961 962 static struct buf * 963 rdfinish(struct rd_softc *sc, struct buf *bp) 964 { 965 966 sc->sc_errcnt = 0; 967 (void)bufq_get(sc->sc_tab); 968 bp->b_resid = 0; 969 biodone(bp); 970 hpibfree(device_parent(sc->sc_dev), &sc->sc_hq); 971 if ((bp = bufq_peek(sc->sc_tab)) != NULL) 972 return bp; 973 sc->sc_active = 0; 974 if (sc->sc_flags & RDF_WANTED) { 975 sc->sc_flags &= ~RDF_WANTED; 976 wakeup((void *)&sc->sc_tab); 977 } 978 return NULL; 979 } 980 981 static void 982 rdstart(void *arg) 983 { 984 struct rd_softc *sc = arg; 985 struct buf *bp = bufq_peek(sc->sc_tab); 986 int ctlr, slave; 987 988 ctlr = device_unit(device_parent(sc->sc_dev)); 989 slave = sc->sc_slave; 990 991 again: 992 #ifdef DEBUG 993 if (rddebug & RDB_FOLLOW) 994 printf("rdstart(%s): bp %p, %c\n", device_xname(sc->sc_dev), bp, 995 (bp->b_flags & B_READ) ? 'R' : 'W'); 996 #endif 997 sc->sc_flags |= RDF_SEEK; 998 sc->sc_ioc.c_unit = C_SUNIT(sc->sc_punit); 999 sc->sc_ioc.c_volume = C_SVOL(0); 1000 sc->sc_ioc.c_saddr = C_SADDR; 1001 sc->sc_ioc.c_hiaddr = 0; 1002 sc->sc_ioc.c_addr = RDBTOS(bp->b_rawblkno); 1003 sc->sc_ioc.c_nop2 = C_NOP; 1004 sc->sc_ioc.c_slen = C_SLEN; 1005 sc->sc_ioc.c_len = sc->sc_resid; 1006 sc->sc_ioc.c_cmd = bp->b_flags & B_READ ? C_READ : C_WRITE; 1007 #ifdef DEBUG 1008 if (rddebug & RDB_IO) 1009 printf("rdstart: hpibsend(%x, %x, %x, %p, %x)\n", 1010 ctlr, slave, C_CMD, 1011 &sc->sc_ioc.c_unit, sizeof(sc->sc_ioc) - 2); 1012 #endif 1013 if (hpibsend(ctlr, slave, C_CMD, &sc->sc_ioc.c_unit, 1014 sizeof(sc->sc_ioc) - 2) == sizeof(sc->sc_ioc) - 2) { 1015 1016 /* Instrumentation. */ 1017 disk_busy(&sc->sc_dkdev); 1018 iostat_seek(sc->sc_dkdev.dk_stats); 1019 1020 #ifdef DEBUG 1021 if (rddebug & RDB_IO) 1022 printf("rdstart: hpibawait(%x)\n", ctlr); 1023 #endif 1024 hpibawait(ctlr); 1025 return; 1026 } 1027 /* 1028 * Experience has shown that the hpibwait in this hpibsend will 1029 * occasionally timeout. It appears to occur mostly on old 7914 1030 * drives with full maintenance tracks. We should probably 1031 * integrate this with the backoff code in rderror. 1032 */ 1033 #ifdef DEBUG 1034 if (rddebug & RDB_ERROR) 1035 printf("%s: rdstart: cmd %x adr %lx blk %lld len %d ecnt %d\n", 1036 device_xname(sc->sc_dev), 1037 sc->sc_ioc.c_cmd, sc->sc_ioc.c_addr, 1038 bp->b_blkno, sc->sc_resid, sc->sc_errcnt); 1039 sc->sc_stats.rdretries++; 1040 #endif 1041 sc->sc_flags &= ~RDF_SEEK; 1042 rdreset(sc); 1043 if (sc->sc_errcnt++ < RDRETRY) 1044 goto again; 1045 printf("%s: rdstart err: cmd 0x%x sect %ld blk %" PRId64 " len %d\n", 1046 device_xname(sc->sc_dev), sc->sc_ioc.c_cmd, sc->sc_ioc.c_addr, 1047 bp->b_blkno, sc->sc_resid); 1048 bp->b_error = EIO; 1049 bp = rdfinish(sc, bp); 1050 if (bp) { 1051 sc->sc_addr = bp->b_data; 1052 sc->sc_resid = bp->b_bcount; 1053 if (hpibreq(device_parent(sc->sc_dev), &sc->sc_hq)) 1054 goto again; 1055 } 1056 } 1057 1058 static void 1059 rdgo(void *arg) 1060 { 1061 struct rd_softc *sc = arg; 1062 struct buf *bp = bufq_peek(sc->sc_tab); 1063 int rw, ctlr, slave; 1064 1065 ctlr = device_unit(device_parent(sc->sc_dev)); 1066 slave = sc->sc_slave; 1067 1068 rw = bp->b_flags & B_READ; 1069 1070 /* Instrumentation. */ 1071 disk_busy(&sc->sc_dkdev); 1072 1073 #ifdef USELEDS 1074 ledcontrol(0, 0, LED_DISK); 1075 #endif 1076 hpibgo(ctlr, slave, C_EXEC, sc->sc_addr, sc->sc_resid, rw, rw != 0); 1077 } 1078 1079 /* ARGSUSED */ 1080 static void 1081 rdintr(void *arg) 1082 { 1083 struct rd_softc *sc = arg; 1084 int unit = device_unit(sc->sc_dev); 1085 struct buf *bp = bufq_peek(sc->sc_tab); 1086 u_char stat = 13; /* in case hpibrecv fails */ 1087 int rv, restart, ctlr, slave; 1088 1089 ctlr = device_unit(device_parent(sc->sc_dev)); 1090 slave = sc->sc_slave; 1091 1092 #ifdef DEBUG 1093 if (rddebug & RDB_FOLLOW) 1094 printf("rdintr(%d): bp %p, %c, flags %x\n", unit, bp, 1095 (bp->b_flags & B_READ) ? 'R' : 'W', sc->sc_flags); 1096 if (bp == NULL) { 1097 printf("%s: bp == NULL\n", device_xname(sc->sc_dev)); 1098 return; 1099 } 1100 #endif 1101 disk_unbusy(&sc->sc_dkdev, (bp->b_bcount - bp->b_resid), 1102 (bp->b_flags & B_READ)); 1103 1104 if (sc->sc_flags & RDF_SEEK) { 1105 sc->sc_flags &= ~RDF_SEEK; 1106 if (hpibustart(ctlr)) 1107 rdgo(sc); 1108 return; 1109 } 1110 if ((sc->sc_flags & RDF_SWAIT) == 0) { 1111 #ifdef DEBUG 1112 sc->sc_stats.rdpolltries++; 1113 #endif 1114 if (hpibpptest(ctlr, slave) == 0) { 1115 #ifdef DEBUG 1116 sc->sc_stats.rdpollwaits++; 1117 #endif 1118 1119 /* Instrumentation. */ 1120 disk_busy(&sc->sc_dkdev); 1121 sc->sc_flags |= RDF_SWAIT; 1122 hpibawait(ctlr); 1123 return; 1124 } 1125 } else 1126 sc->sc_flags &= ~RDF_SWAIT; 1127 rv = hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 1128 if (rv != 1 || stat) { 1129 #ifdef DEBUG 1130 if (rddebug & RDB_ERROR) 1131 printf("rdintr: recv failed or bad stat %d\n", stat); 1132 #endif 1133 restart = rderror(unit); 1134 #ifdef DEBUG 1135 sc->sc_stats.rdretries++; 1136 #endif 1137 if (sc->sc_errcnt++ < RDRETRY) { 1138 if (restart) 1139 rdstart(sc); 1140 return; 1141 } 1142 bp->b_error = EIO; 1143 } 1144 if (rdfinish(sc, bp)) 1145 rdustart(sc); 1146 rnd_add_uint32(&sc->rnd_source, bp->b_blkno); 1147 } 1148 1149 static int 1150 rdstatus(struct rd_softc *sc) 1151 { 1152 int c, s; 1153 u_char stat; 1154 int rv; 1155 1156 c = device_unit(device_parent(sc->sc_dev)); 1157 s = sc->sc_slave; 1158 sc->sc_rsc.c_unit = C_SUNIT(sc->sc_punit); 1159 sc->sc_rsc.c_sram = C_SRAM; 1160 sc->sc_rsc.c_ram = C_RAM; 1161 sc->sc_rsc.c_cmd = C_STATUS; 1162 memset((void *)&sc->sc_stat, 0, sizeof(sc->sc_stat)); 1163 rv = hpibsend(c, s, C_CMD, &sc->sc_rsc, sizeof(sc->sc_rsc)); 1164 if (rv != sizeof(sc->sc_rsc)) { 1165 #ifdef DEBUG 1166 if (rddebug & RDB_STATUS) 1167 printf("rdstatus: send C_CMD failed %d != %d\n", 1168 rv, sizeof(sc->sc_rsc)); 1169 #endif 1170 return 1; 1171 } 1172 rv = hpibrecv(c, s, C_EXEC, &sc->sc_stat, sizeof(sc->sc_stat)); 1173 if (rv != sizeof(sc->sc_stat)) { 1174 #ifdef DEBUG 1175 if (rddebug & RDB_STATUS) 1176 printf("rdstatus: send C_EXEC failed %d != %d\n", 1177 rv, sizeof(sc->sc_stat)); 1178 #endif 1179 return 1; 1180 } 1181 rv = hpibrecv(c, s, C_QSTAT, &stat, 1); 1182 if (rv != 1 || stat) { 1183 #ifdef DEBUG 1184 if (rddebug & RDB_STATUS) 1185 printf("rdstatus: recv failed %d or bad stat %d\n", 1186 rv, stat); 1187 #endif 1188 return 1; 1189 } 1190 return 0; 1191 } 1192 1193 /* 1194 * Deal with errors. 1195 * Returns 1 if request should be restarted, 1196 * 0 if we should just quietly give up. 1197 */ 1198 static int 1199 rderror(int unit) 1200 { 1201 struct rd_softc *sc = device_lookup_private(&rd_cd,unit); 1202 struct rd_stat *sp; 1203 struct buf *bp; 1204 daddr_t hwbn, pbn; 1205 char *hexstr(int, int); /* XXX */ 1206 1207 if (rdstatus(sc)) { 1208 #ifdef DEBUG 1209 printf("%s: couldn't get status\n", device_xname(sc->sc_dev)); 1210 #endif 1211 rdreset(sc); 1212 return 1; 1213 } 1214 sp = &sc->sc_stat; 1215 if (sp->c_fef & FEF_REXMT) 1216 return 1; 1217 if (sp->c_fef & FEF_PF) { 1218 rdreset(sc); 1219 return 1; 1220 } 1221 /* 1222 * Unit requests release for internal maintenance. 1223 * We just delay awhile and try again later. Use expontially 1224 * increasing backoff ala ethernet drivers since we don't really 1225 * know how long the maintenance will take. With RDWAITC and 1226 * RDRETRY as defined, the range is 1 to 32 seconds. 1227 */ 1228 if (sp->c_fef & FEF_IMR) { 1229 extern int hz; 1230 int rdtimo = RDWAITC << sc->sc_errcnt; 1231 #ifdef DEBUG 1232 printf("%s: internal maintenance, %d second timeout\n", 1233 device_xname(sc->sc_dev), rdtimo); 1234 sc->sc_stats.rdtimeouts++; 1235 #endif 1236 hpibfree(device_parent(sc->sc_dev), &sc->sc_hq); 1237 callout_reset(&sc->sc_restart_ch, rdtimo * hz, rdrestart, sc); 1238 return 0; 1239 } 1240 /* 1241 * Only report error if we have reached the error reporting 1242 * threshold. By default, this will only report after the 1243 * retry limit has been exceeded. 1244 */ 1245 if (sc->sc_errcnt < rderrthresh) 1246 return 1; 1247 1248 /* 1249 * First conjure up the block number at which the error occurred. 1250 * Note that not all errors report a block number, in that case 1251 * we just use b_blkno. 1252 */ 1253 bp = bufq_peek(sc->sc_tab); 1254 pbn = sc->sc_dkdev.dk_label->d_partitions[rdpart(bp->b_dev)].p_offset; 1255 if ((sp->c_fef & FEF_CU) || (sp->c_fef & FEF_DR) || 1256 (sp->c_ief & IEF_RRMASK)) { 1257 hwbn = RDBTOS(pbn + bp->b_blkno); 1258 pbn = bp->b_blkno; 1259 } else { 1260 hwbn = sp->c_blk; 1261 pbn = RDSTOB(hwbn) - pbn; 1262 } 1263 /* 1264 * Now output a generic message suitable for badsect. 1265 * Note that we don't use harderr cuz it just prints 1266 * out b_blkno which is just the beginning block number 1267 * of the transfer, not necessary where the error occurred. 1268 */ 1269 printf("%s%c: hard error sn%" PRId64 "\n", device_xname(sc->sc_dev), 1270 'a'+rdpart(bp->b_dev), pbn); 1271 /* 1272 * Now report the status as returned by the hardware with 1273 * attempt at interpretation (unless debugging). 1274 */ 1275 printf("%s %s error:", device_xname(sc->sc_dev), 1276 (bp->b_flags & B_READ) ? "read" : "write"); 1277 #ifdef DEBUG 1278 if (rddebug & RDB_ERROR) { 1279 /* status info */ 1280 printf("\n volume: %d, unit: %d\n", 1281 (sp->c_vu>>4)&0xF, sp->c_vu&0xF); 1282 rdprinterr("reject", sp->c_ref, err_reject); 1283 rdprinterr("fault", sp->c_fef, err_fault); 1284 rdprinterr("access", sp->c_aef, err_access); 1285 rdprinterr("info", sp->c_ief, err_info); 1286 printf(" block: %lld, P1-P10: ", hwbn); 1287 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1288 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1289 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1290 /* command */ 1291 printf(" ioc: "); 1292 printf("0x%x", *(u_int *)&sc->sc_ioc.c_pad); 1293 printf("0x%x", *(u_short *)&sc->sc_ioc.c_hiaddr); 1294 printf("0x%x", *(u_int *)&sc->sc_ioc.c_addr); 1295 printf("0x%x", *(u_short *)&sc->sc_ioc.c_nop2); 1296 printf("0x%x", *(u_int *)&sc->sc_ioc.c_len); 1297 printf("0x%x\n", *(u_short *)&sc->sc_ioc.c_cmd); 1298 return 1; 1299 } 1300 #endif 1301 printf(" v%d u%d, R0x%x F0x%x A0x%x I0x%x\n", 1302 (sp->c_vu>>4)&0xF, sp->c_vu&0xF, 1303 sp->c_ref, sp->c_fef, sp->c_aef, sp->c_ief); 1304 printf("P1-P10: "); 1305 printf("0x%x", *(u_int *)&sp->c_raw[0]); 1306 printf("0x%x", *(u_int *)&sp->c_raw[4]); 1307 printf("0x%x\n", *(u_short *)&sp->c_raw[8]); 1308 return 1; 1309 } 1310 1311 static int 1312 rdread(dev_t dev, struct uio *uio, int flags) 1313 { 1314 1315 return physio(rdstrategy, NULL, dev, B_READ, minphys, uio); 1316 } 1317 1318 static int 1319 rdwrite(dev_t dev, struct uio *uio, int flags) 1320 { 1321 1322 return physio(rdstrategy, NULL, dev, B_WRITE, minphys, uio); 1323 } 1324 1325 static int 1326 rdioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 1327 { 1328 struct rd_softc *sc = device_lookup_private(&rd_cd, rdunit(dev)); 1329 struct disklabel *lp = sc->sc_dkdev.dk_label; 1330 int error, flags; 1331 1332 error = disk_ioctl(&sc->sc_dkdev, rdpart(dev), cmd, data, flag, l); 1333 if (error != EPASSTHROUGH) 1334 return error; 1335 1336 switch (cmd) { 1337 case DIOCWLABEL: 1338 if ((flag & FWRITE) == 0) 1339 return EBADF; 1340 if (*(int *)data) 1341 sc->sc_flags |= RDF_WLABEL; 1342 else 1343 sc->sc_flags &= ~RDF_WLABEL; 1344 return 0; 1345 1346 case DIOCSDINFO: 1347 if ((flag & FWRITE) == 0) 1348 return EBADF; 1349 return setdisklabel(lp, (struct disklabel *)data, 1350 (sc->sc_flags & RDF_WLABEL) ? 0 : sc->sc_dkdev.dk_openmask, 1351 NULL); 1352 1353 case DIOCWDINFO: 1354 if ((flag & FWRITE) == 0) 1355 return EBADF; 1356 error = setdisklabel(lp, (struct disklabel *)data, 1357 (sc->sc_flags & RDF_WLABEL) ? 0 : sc->sc_dkdev.dk_openmask, 1358 NULL); 1359 if (error) 1360 return error; 1361 flags = sc->sc_flags; 1362 sc->sc_flags = RDF_ALIVE | RDF_WLABEL; 1363 error = writedisklabel(rdlabdev(dev), rdstrategy, lp, NULL); 1364 sc->sc_flags = flags; 1365 return error; 1366 1367 case DIOCGDEFLABEL: 1368 rdgetdefaultlabel(sc, (struct disklabel *)data); 1369 return 0; 1370 } 1371 return EINVAL; 1372 } 1373 1374 static void 1375 rdgetdefaultlabel(struct rd_softc *sc, struct disklabel *lp) 1376 { 1377 int type = sc->sc_type; 1378 1379 memset((void *)lp, 0, sizeof(struct disklabel)); 1380 1381 lp->d_type = DKTYPE_HPIB; 1382 lp->d_secsize = DEV_BSIZE; 1383 lp->d_nsectors = rdidentinfo[type].ri_nbpt; 1384 lp->d_ntracks = rdidentinfo[type].ri_ntpc; 1385 lp->d_ncylinders = rdidentinfo[type].ri_ncyl; 1386 lp->d_secperunit = rdidentinfo[type].ri_nblocks; 1387 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1388 1389 strlcpy(lp->d_typename, rdidentinfo[type].ri_desc, 1390 sizeof(lp->d_typename)); 1391 strlcpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 1392 lp->d_rpm = 3000; 1393 lp->d_interleave = 1; 1394 lp->d_flags = 0; 1395 1396 lp->d_partitions[RAW_PART].p_offset = 0; 1397 lp->d_partitions[RAW_PART].p_size = 1398 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1399 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1400 lp->d_npartitions = RAW_PART + 1; 1401 1402 lp->d_magic = DISKMAGIC; 1403 lp->d_magic2 = DISKMAGIC; 1404 lp->d_checksum = dkcksum(lp); 1405 } 1406 1407 int 1408 rdsize(dev_t dev) 1409 { 1410 struct rd_softc *sc; 1411 int psize, didopen = 0; 1412 1413 sc = device_lookup_private(&rd_cd, rdunit(dev)); 1414 if (sc == NULL) 1415 return ENXIO; 1416 1417 if ((sc->sc_flags & RDF_ALIVE) == 0) 1418 return ENXIO; 1419 1420 /* 1421 * We get called very early on (via swapconf) 1422 * without the device being open so we may need 1423 * to handle it here. 1424 */ 1425 if (sc->sc_dkdev.dk_openmask == 0) { 1426 if (rdopen(dev, FREAD|FWRITE, S_IFBLK, NULL)) 1427 return -1; 1428 didopen = 1; 1429 } 1430 psize = sc->sc_dkdev.dk_label->d_partitions[rdpart(dev)].p_size * 1431 (sc->sc_dkdev.dk_label->d_secsize / DEV_BSIZE); 1432 if (didopen) 1433 (void)rdclose(dev, FREAD|FWRITE, S_IFBLK, NULL); 1434 return psize; 1435 } 1436 1437 #ifdef DEBUG 1438 static void 1439 rdprinterr(const char *str, short err, const char **tab) 1440 { 1441 int i; 1442 int printed; 1443 1444 if (err == 0) 1445 return; 1446 printf(" %s error %d field:", str, err); 1447 printed = 0; 1448 for (i = 0; i < 16; i++) 1449 if (err & (0x8000 >> i)) 1450 printf("%s%s", printed++ ? " + " : " ", tab[i]); 1451 printf("\n"); 1452 } 1453 #endif 1454 1455 static int rddoingadump; /* simple mutex */ 1456 1457 /* 1458 * Non-interrupt driven, non-DMA dump routine. 1459 */ 1460 static int 1461 rddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1462 { 1463 int sectorsize; /* size of a disk sector */ 1464 int nsects; /* number of sectors in partition */ 1465 int sectoff; /* sector offset of partition */ 1466 int totwrt; /* total number of sectors left to write */ 1467 int nwrt; /* current number of sectors to write */ 1468 int part; 1469 int ctlr, slave; 1470 struct rd_softc *sc; 1471 struct disklabel *lp; 1472 char stat; 1473 1474 /* Check for recursive dump; if so, punt. */ 1475 if (rddoingadump) 1476 return EFAULT; 1477 rddoingadump = 1; 1478 1479 /* Decompose unit and partition. */ 1480 part = rdpart(dev); 1481 1482 /* Make sure dump device is ok. */ 1483 sc = device_lookup_private(&rd_cd, rdunit(dev)); 1484 if (sc == NULL) 1485 return ENXIO; 1486 1487 if ((sc->sc_flags & RDF_ALIVE) == 0) 1488 return ENXIO; 1489 1490 ctlr = device_unit(device_parent(sc->sc_dev)); 1491 slave = sc->sc_slave; 1492 1493 /* 1494 * Convert to disk sectors. Request must be a multiple of size. 1495 */ 1496 lp = sc->sc_dkdev.dk_label; 1497 sectorsize = lp->d_secsize; 1498 if ((size % sectorsize) != 0) 1499 return EFAULT; 1500 totwrt = size / sectorsize; 1501 blkno = dbtob(blkno) / sectorsize; /* blkno in DEV_BSIZE units */ 1502 1503 nsects = lp->d_partitions[part].p_size; 1504 sectoff = lp->d_partitions[part].p_offset; 1505 1506 /* Check transfer bounds against partition size. */ 1507 if ((blkno < 0) || (blkno + totwrt) > nsects) 1508 return EINVAL; 1509 1510 /* Offset block number to start of partition. */ 1511 blkno += sectoff; 1512 1513 while (totwrt > 0) { 1514 nwrt = totwrt; /* XXX */ 1515 #ifndef RD_DUMP_NOT_TRUSTED 1516 /* 1517 * Fill out and send HPIB command. 1518 */ 1519 sc->sc_ioc.c_unit = C_SUNIT(sc->sc_punit); 1520 sc->sc_ioc.c_volume = C_SVOL(0); 1521 sc->sc_ioc.c_saddr = C_SADDR; 1522 sc->sc_ioc.c_hiaddr = 0; 1523 sc->sc_ioc.c_addr = RDBTOS(blkno); 1524 sc->sc_ioc.c_nop2 = C_NOP; 1525 sc->sc_ioc.c_slen = C_SLEN; 1526 sc->sc_ioc.c_len = nwrt * sectorsize; 1527 sc->sc_ioc.c_cmd = C_WRITE; 1528 hpibsend(ctlr, slave, C_CMD, &sc->sc_ioc.c_unit, 1529 sizeof(sc->sc_ioc) - 2); 1530 if (hpibswait(ctlr, slave)) 1531 return EIO; 1532 1533 /* 1534 * Send the data. 1535 */ 1536 hpibsend(ctlr, slave, C_EXEC, va, nwrt * sectorsize); 1537 (void) hpibswait(ctlr, slave); 1538 hpibrecv(ctlr, slave, C_QSTAT, &stat, 1); 1539 if (stat) 1540 return EIO; 1541 #else /* RD_DUMP_NOT_TRUSTED */ 1542 /* Let's just talk about this first... */ 1543 printf("%s: dump addr %p, blk %d\n", device_xname(sc->sc_dev), 1544 va, blkno); 1545 delay(500 * 1000); /* half a second */ 1546 #endif /* RD_DUMP_NOT_TRUSTED */ 1547 1548 /* update block count */ 1549 totwrt -= nwrt; 1550 blkno += nwrt; 1551 va = (char *)va + sectorsize * nwrt; 1552 } 1553 rddoingadump = 0; 1554 return 0; 1555 } 1556
Indexes created Mon Sep 29 21:09:56 GMT 2025