mscp_disk.c revision 1.30.8.2
1 /* $NetBSD: mscp_disk.c,v 1.30.8.2 2002/06/08 09:09:04 gehenna Exp $ */ 2 /* 3 * Copyright (c) 1996 Ludd, University of Lule}, Sweden. 4 * Copyright (c) 1988 Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Chris Torek. 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 University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)uda.c 7.32 (Berkeley) 2/13/91 39 */ 40 41 /* 42 * RA disk device driver 43 * RX MSCP floppy disk device driver 44 */ 45 46 /* 47 * TODO 48 * write bad block forwarding code 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: mscp_disk.c,v 1.30.8.2 2002/06/08 09:09:04 gehenna Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/buf.h> 56 #include <sys/device.h> 57 #include <sys/disk.h> 58 #include <sys/disklabel.h> 59 #include <sys/ioctl.h> 60 #include <sys/stat.h> 61 #include <sys/fcntl.h> 62 #include <sys/reboot.h> 63 #include <sys/proc.h> 64 #include <sys/systm.h> 65 #include <sys/conf.h> 66 67 #include <ufs/ufs/dinode.h> 68 #include <ufs/ffs/fs.h> 69 70 #include <machine/bus.h> 71 #include <machine/cpu.h> 72 73 #include <dev/mscp/mscp.h> 74 #include <dev/mscp/mscpreg.h> 75 #include <dev/mscp/mscpvar.h> 76 77 #include "locators.h" 78 #include "ioconf.h" 79 #include "ra.h" 80 81 /* 82 * Drive status, per drive 83 */ 84 struct ra_softc { 85 struct device ra_dev; /* Autoconf struct */ 86 struct disk ra_disk; 87 int ra_state; /* open/closed state */ 88 u_long ra_mediaid; /* media id */ 89 int ra_hwunit; /* Hardware unit number */ 90 int ra_havelabel; /* true if we have a label */ 91 int ra_wlabel; /* label sector is currently writable */ 92 }; 93 94 #define rx_softc ra_softc 95 96 void rxattach __P((struct device *, struct device *, void *)); 97 int rx_putonline __P((struct rx_softc *)); 98 void rrmakelabel __P((struct disklabel *, long)); 99 100 #if NRA 101 102 int ramatch __P((struct device *, struct cfdata *, void *)); 103 void raattach __P((struct device *, struct device *, void *)); 104 int ra_putonline __P((struct ra_softc *)); 105 106 struct cfattach ra_ca = { 107 sizeof(struct ra_softc), ramatch, rxattach 108 }; 109 110 dev_type_open(raopen); 111 dev_type_close(raclose); 112 dev_type_read(raread); 113 dev_type_write(rawrite); 114 dev_type_ioctl(raioctl); 115 dev_type_strategy(rastrategy); 116 dev_type_dump(radump); 117 dev_type_size(rasize); 118 119 const struct bdevsw ra_bdevsw = { 120 raopen, raclose, rastrategy, raioctl, radump, rasize, D_DISK 121 }; 122 123 const struct cdevsw ra_cdevsw = { 124 raopen, raclose, raread, rawrite, raioctl, 125 nostop, notty, nopoll, nommap, D_DISK 126 }; 127 128 /* 129 * More driver definitions, for generic MSCP code. 130 */ 131 132 int 133 ramatch(parent, cf, aux) 134 struct device *parent; 135 struct cfdata *cf; 136 void *aux; 137 { 138 struct drive_attach_args *da = aux; 139 struct mscp *mp = da->da_mp; 140 141 if ((da->da_typ & MSCPBUS_DISK) == 0) 142 return 0; 143 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 144 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 145 return 0; 146 /* 147 * Check if this disk is a floppy; then don't configure it. 148 * Seems to be a safe way to test it per Chris Torek. 149 */ 150 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 151 return 0; 152 return 1; 153 } 154 155 /* 156 * (Try to) put the drive online. This is done the first time the 157 * drive is opened, or if it har fallen offline. 158 */ 159 int 160 ra_putonline(ra) 161 struct ra_softc *ra; 162 { 163 struct disklabel *dl; 164 char *msg; 165 int maj; 166 167 if (rx_putonline(ra) != MSCP_DONE) 168 return MSCP_FAILED; 169 170 dl = ra->ra_disk.dk_label; 171 172 ra->ra_state = DK_RDLABEL; 173 printf("%s", ra->ra_dev.dv_xname); 174 maj = cdevsw_lookup_major(&ra_cdevsw); 175 if ((msg = readdisklabel(MAKEDISKDEV(maj, ra->ra_dev.dv_unit, 176 RAW_PART), rastrategy, dl, NULL)) != NULL) 177 printf(": %s", msg); 178 else { 179 ra->ra_havelabel = 1; 180 ra->ra_state = DK_OPEN; 181 } 182 183 printf(": size %d sectors\n", dl->d_secperunit); 184 185 return MSCP_DONE; 186 } 187 188 /* 189 * Open a drive. 190 */ 191 /*ARGSUSED*/ 192 int 193 raopen(dev, flag, fmt, p) 194 dev_t dev; 195 int flag, fmt; 196 struct proc *p; 197 { 198 struct ra_softc *ra; 199 int part, unit, mask; 200 /* 201 * Make sure this is a reasonable open request. 202 */ 203 unit = DISKUNIT(dev); 204 if (unit >= ra_cd.cd_ndevs) 205 return ENXIO; 206 ra = ra_cd.cd_devs[unit]; 207 if (ra == 0) 208 return ENXIO; 209 210 /* 211 * If this is the first open; we must first try to put 212 * the disk online (and read the label). 213 */ 214 if (ra->ra_state == DK_CLOSED) 215 if (ra_putonline(ra) == MSCP_FAILED) 216 return ENXIO; 217 218 /* If the disk has no label; allow writing everywhere */ 219 if (ra->ra_havelabel == 0) 220 ra->ra_wlabel = 1; 221 222 part = DISKPART(dev); 223 if (part >= ra->ra_disk.dk_label->d_npartitions) 224 return ENXIO; 225 226 /* 227 * Wait for the state to settle 228 */ 229 #if notyet 230 while (ra->ra_state != DK_OPEN) 231 if ((error = tsleep((caddr_t)ra, (PZERO + 1) | PCATCH, 232 devopn, 0))) { 233 splx(s); 234 return (error); 235 } 236 #endif 237 238 mask = 1 << part; 239 240 switch (fmt) { 241 case S_IFCHR: 242 ra->ra_disk.dk_copenmask |= mask; 243 break; 244 case S_IFBLK: 245 ra->ra_disk.dk_bopenmask |= mask; 246 break; 247 } 248 ra->ra_disk.dk_openmask |= mask; 249 return 0; 250 } 251 252 /* ARGSUSED */ 253 int 254 raclose(dev, flags, fmt, p) 255 dev_t dev; 256 int flags, fmt; 257 struct proc *p; 258 { 259 int unit = DISKUNIT(dev); 260 struct ra_softc *ra = ra_cd.cd_devs[unit]; 261 int mask = (1 << DISKPART(dev)); 262 263 switch (fmt) { 264 case S_IFCHR: 265 ra->ra_disk.dk_copenmask &= ~mask; 266 break; 267 case S_IFBLK: 268 ra->ra_disk.dk_bopenmask &= ~mask; 269 break; 270 } 271 ra->ra_disk.dk_openmask = 272 ra->ra_disk.dk_copenmask | ra->ra_disk.dk_bopenmask; 273 274 /* 275 * Should wait for I/O to complete on this partition even if 276 * others are open, but wait for work on blkflush(). 277 */ 278 #if notyet 279 if (ra->ra_openpart == 0) { 280 s = spluba(); 281 while (BUFQ_FIRST(&udautab[unit]) != NULL) 282 (void) tsleep(&udautab[unit], PZERO - 1, 283 "raclose", 0); 284 splx(s); 285 ra->ra_state = CLOSED; 286 ra->ra_wlabel = 0; 287 } 288 #endif 289 return (0); 290 } 291 292 /* 293 * Queue a transfer request, and if possible, hand it to the controller. 294 */ 295 void 296 rastrategy(bp) 297 struct buf *bp; 298 { 299 int unit; 300 struct ra_softc *ra; 301 /* 302 * Make sure this is a reasonable drive to use. 303 */ 304 unit = DISKUNIT(bp->b_dev); 305 if (unit > ra_cd.cd_ndevs || (ra = ra_cd.cd_devs[unit]) == NULL) { 306 bp->b_error = ENXIO; 307 bp->b_flags |= B_ERROR; 308 goto done; 309 } 310 /* 311 * If drive is open `raw' or reading label, let it at it. 312 */ 313 if (ra->ra_state == DK_RDLABEL) { 314 mscp_strategy(bp, ra->ra_dev.dv_parent); 315 return; 316 } 317 318 /* If disk is not online, try to put it online */ 319 if (ra->ra_state == DK_CLOSED) 320 if (ra_putonline(ra) == MSCP_FAILED) { 321 bp->b_flags |= B_ERROR; 322 bp->b_error = EIO; 323 goto done; 324 } 325 326 /* 327 * Determine the size of the transfer, and make sure it is 328 * within the boundaries of the partition. 329 */ 330 if (bounds_check_with_label(bp, ra->ra_disk.dk_label, 331 ra->ra_wlabel) <= 0) 332 goto done; 333 334 /* Make some statistics... /bqt */ 335 ra->ra_disk.dk_xfer++; 336 ra->ra_disk.dk_bytes += bp->b_bcount; 337 mscp_strategy(bp, ra->ra_dev.dv_parent); 338 return; 339 340 done: 341 biodone(bp); 342 } 343 344 int 345 raread(dev, uio, flags) 346 dev_t dev; 347 struct uio *uio; 348 int flags; 349 { 350 351 return (physio(rastrategy, NULL, dev, B_READ, minphys, uio)); 352 } 353 354 int 355 rawrite(dev, uio, flags) 356 dev_t dev; 357 struct uio *uio; 358 int flags; 359 { 360 361 return (physio(rastrategy, NULL, dev, B_WRITE, minphys, uio)); 362 } 363 364 /* 365 * I/O controls. 366 */ 367 int 368 raioctl(dev, cmd, data, flag, p) 369 dev_t dev; 370 u_long cmd; 371 caddr_t data; 372 int flag; 373 struct proc *p; 374 { 375 int unit = DISKUNIT(dev); 376 struct disklabel *lp, *tp; 377 struct ra_softc *ra = ra_cd.cd_devs[unit]; 378 int error = 0; 379 #ifdef __HAVE_OLD_DISKLABEL 380 struct disklabel newlabel; 381 #endif 382 383 lp = ra->ra_disk.dk_label; 384 385 switch (cmd) { 386 387 case DIOCGDINFO: 388 bcopy(lp, data, sizeof (struct disklabel)); 389 break; 390 #ifdef __HAVE_OLD_DISKLABEL 391 case ODIOCGDINFO: 392 bcopy(lp, &newlabel, sizeof disklabel); 393 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 394 return ENOTTY; 395 bcopy(&newlabel, data, sizeof (struct olddisklabel)); 396 break; 397 #endif 398 399 case DIOCGPART: 400 ((struct partinfo *)data)->disklab = lp; 401 ((struct partinfo *)data)->part = 402 &lp->d_partitions[DISKPART(dev)]; 403 break; 404 405 case DIOCWDINFO: 406 case DIOCSDINFO: 407 #ifdef __HAVE_OLD_DISKLABEL 408 case ODIOCWDINFO: 409 case ODIOCSDINFO: 410 if (cmd == ODIOCSDINFO || xfer == ODIOCWDINFO) { 411 memset(&newlabel, 0, sizeof newlabel); 412 memcpy(&newlabel, data, sizeof (struct olddisklabel)); 413 tp = &newlabel; 414 } else 415 #endif 416 tp = (struct disklabel *)data; 417 418 if ((flag & FWRITE) == 0) 419 error = EBADF; 420 else { 421 error = setdisklabel(lp, tp, 0, 0); 422 if ((error == 0) && (cmd == DIOCWDINFO 423 #ifdef __HAVE_OLD_DISKLABEL 424 || cmd == ODIOCWDINFO 425 #else 426 )) { 427 #endif 428 ra->ra_wlabel = 1; 429 error = writedisklabel(dev, rastrategy, lp,0); 430 ra->ra_wlabel = 0; 431 } 432 } 433 break; 434 435 case DIOCWLABEL: 436 if ((flag & FWRITE) == 0) 437 error = EBADF; 438 else 439 ra->ra_wlabel = 1; 440 break; 441 442 case DIOCGDEFLABEL: 443 #ifdef __HAVE_OLD_DISKLABEL 444 case ODIOCGDEFLABEL: 445 if (cmd == ODIOCGDEFLABEL) 446 tp = &newlabel; 447 else 448 #else 449 tp = (struct disklabel *)data; 450 #endif 451 bzero(tp, sizeof(struct disklabel)); 452 tp->d_secsize = lp->d_secsize; 453 tp->d_nsectors = lp->d_nsectors; 454 tp->d_ntracks = lp->d_ntracks; 455 tp->d_ncylinders = lp->d_ncylinders; 456 tp->d_secpercyl = lp->d_secpercyl; 457 tp->d_secperunit = lp->d_secperunit; 458 tp->d_type = DTYPE_MSCP; 459 tp->d_rpm = 3600; 460 rrmakelabel(tp, ra->ra_mediaid); 461 #ifdef __HAVE_OLD_DISKLABEL 462 if (cmd == ODIOCGDEFLABEL) { 463 if (tp->d_npartitions > OLDMAXPARTITIONS) 464 return ENOTTY; 465 memcpy(data, tp, sizeof (struct olddisklabel)); 466 } 467 #endif 468 break; 469 470 default: 471 error = ENOTTY; 472 break; 473 } 474 return (error); 475 } 476 477 478 int 479 radump(dev, blkno, va, size) 480 dev_t dev; 481 daddr_t blkno; 482 caddr_t va; 483 size_t size; 484 { 485 return ENXIO; 486 } 487 488 /* 489 * Return the size of a partition, if known, or -1 if not. 490 */ 491 int 492 rasize(dev) 493 dev_t dev; 494 { 495 int unit = DISKUNIT(dev); 496 struct ra_softc *ra; 497 498 if (unit >= ra_cd.cd_ndevs || ra_cd.cd_devs[unit] == 0) 499 return -1; 500 501 ra = ra_cd.cd_devs[unit]; 502 503 if (ra->ra_state == DK_CLOSED) 504 if (ra_putonline(ra) == MSCP_FAILED) 505 return -1; 506 507 return ra->ra_disk.dk_label->d_partitions[DISKPART(dev)].p_size * 508 (ra->ra_disk.dk_label->d_secsize / DEV_BSIZE); 509 } 510 511 #endif /* NRA */ 512 513 #if NRX 514 515 int rxmatch __P((struct device *, struct cfdata *, void *)); 516 517 struct cfattach rx_ca = { 518 sizeof(struct rx_softc), rxmatch, rxattach 519 }; 520 521 dev_type_open(rxopen); 522 dev_type_read(rxread); 523 dev_type_write(rxwrite); 524 dev_type_ioctl(rxioctl); 525 dev_type_strategy(rxstrategy); 526 dev_type_dump(rxdump); 527 dev_type_size(rxsize); 528 529 const struct bdevsw rx_bdevsw = { 530 rxopen, nullclose, rxstrategy, rxioctl, rxdump, rxsize, D_DISK 531 }; 532 533 const struct cdevsw rx_cdevsw = { 534 rxopen, nullclose, rxread, rxwrite, rxioctl, 535 nostop, notty, nopoll, nommap, D_DISK 536 }; 537 538 /* 539 * More driver definitions, for generic MSCP code. 540 */ 541 542 int 543 rxmatch(parent, cf, aux) 544 struct device *parent; 545 struct cfdata *cf; 546 void *aux; 547 { 548 struct drive_attach_args *da = aux; 549 struct mscp *mp = da->da_mp; 550 551 if ((da->da_typ & MSCPBUS_DISK) == 0) 552 return 0; 553 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 554 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 555 return 0; 556 /* 557 * Check if this disk is a floppy; then configure it. 558 * Seems to be a safe way to test it per Chris Torek. 559 */ 560 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 561 return 1; 562 return 0; 563 } 564 565 #endif /* NRX */ 566 567 /* 568 * The attach routine only checks and prints drive type. 569 * Bringing the disk online is done when the disk is accessed 570 * the first time. 571 */ 572 void 573 rxattach(parent, self, aux) 574 struct device *parent, *self; 575 void *aux; 576 { 577 struct rx_softc *rx = (void *)self; 578 struct drive_attach_args *da = aux; 579 struct mscp *mp = da->da_mp; 580 struct mscp_softc *mi = (void *)parent; 581 struct disklabel *dl; 582 583 rx->ra_mediaid = mp->mscp_guse.guse_mediaid; 584 rx->ra_state = DK_CLOSED; 585 rx->ra_hwunit = mp->mscp_unit; 586 mi->mi_dp[mp->mscp_unit] = self; 587 588 rx->ra_disk.dk_name = rx->ra_dev.dv_xname; 589 disk_attach((struct disk *)&rx->ra_disk); 590 591 /* Fill in what we know. The actual size is gotten later */ 592 dl = rx->ra_disk.dk_label; 593 594 dl->d_secsize = DEV_BSIZE; 595 dl->d_nsectors = mp->mscp_guse.guse_nspt; 596 dl->d_ntracks = mp->mscp_guse.guse_ngpc * mp->mscp_guse.guse_group; 597 dl->d_secpercyl = dl->d_nsectors * dl->d_ntracks; 598 disk_printtype(mp->mscp_unit, mp->mscp_guse.guse_mediaid); 599 #ifdef DEBUG 600 printf("%s: nspt %d group %d ngpc %d rct %d nrpt %d nrct %d\n", 601 self->dv_xname, mp->mscp_guse.guse_nspt, mp->mscp_guse.guse_group, 602 mp->mscp_guse.guse_ngpc, mp->mscp_guse.guse_rctsize, 603 mp->mscp_guse.guse_nrpt, mp->mscp_guse.guse_nrct); 604 #endif 605 } 606 607 /* 608 * (Try to) put the drive online. This is done the first time the 609 * drive is opened, or if it har fallen offline. 610 */ 611 int 612 rx_putonline(rx) 613 struct rx_softc *rx; 614 { 615 struct mscp *mp; 616 struct mscp_softc *mi = (struct mscp_softc *)rx->ra_dev.dv_parent; 617 volatile int i; 618 619 rx->ra_state = DK_CLOSED; 620 mp = mscp_getcp(mi, MSCP_WAIT); 621 mp->mscp_opcode = M_OP_ONLINE; 622 mp->mscp_unit = rx->ra_hwunit; 623 mp->mscp_cmdref = 1; 624 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 625 626 /* Poll away */ 627 i = bus_space_read_2(mi->mi_iot, mi->mi_iph, 0); 628 if (tsleep(&rx->ra_dev.dv_unit, PRIBIO, "rxonline", 100*100)) 629 rx->ra_state = DK_CLOSED; 630 631 if (rx->ra_state == DK_CLOSED) 632 return MSCP_FAILED; 633 634 return MSCP_DONE; 635 } 636 637 #if NRX 638 639 /* 640 * Open a drive. 641 */ 642 /*ARGSUSED*/ 643 int 644 rxopen(dev, flag, fmt, p) 645 dev_t dev; 646 int flag, fmt; 647 struct proc *p; 648 { 649 struct rx_softc *rx; 650 int unit; 651 652 /* 653 * Make sure this is a reasonable open request. 654 */ 655 unit = DISKUNIT(dev); 656 if (unit >= rx_cd.cd_ndevs) 657 return ENXIO; 658 rx = rx_cd.cd_devs[unit]; 659 if (rx == 0) 660 return ENXIO; 661 662 /* 663 * If this is the first open; we must first try to put 664 * the disk online (and read the label). 665 */ 666 if (rx->ra_state == DK_CLOSED) 667 if (rx_putonline(rx) == MSCP_FAILED) 668 return ENXIO; 669 670 return 0; 671 } 672 673 /* 674 * Queue a transfer request, and if possible, hand it to the controller. 675 * 676 * This routine is broken into two so that the internal version 677 * udastrat1() can be called by the (nonexistent, as yet) bad block 678 * revectoring routine. 679 */ 680 void 681 rxstrategy(bp) 682 struct buf *bp; 683 { 684 int unit; 685 struct rx_softc *rx; 686 687 /* 688 * Make sure this is a reasonable drive to use. 689 */ 690 unit = DISKUNIT(bp->b_dev); 691 if (unit > rx_cd.cd_ndevs || (rx = rx_cd.cd_devs[unit]) == NULL) { 692 bp->b_error = ENXIO; 693 bp->b_flags |= B_ERROR; 694 goto done; 695 } 696 697 /* If disk is not online, try to put it online */ 698 if (rx->ra_state == DK_CLOSED) 699 if (rx_putonline(rx) == MSCP_FAILED) { 700 bp->b_flags |= B_ERROR; 701 bp->b_error = EIO; 702 goto done; 703 } 704 705 /* 706 * Determine the size of the transfer, and make sure it is 707 * within the boundaries of the partition. 708 */ 709 if (bp->b_blkno >= rx->ra_disk.dk_label->d_secperunit) { 710 bp->b_resid = bp->b_bcount; 711 goto done; 712 } 713 714 /* Make some statistics... /bqt */ 715 rx->ra_disk.dk_xfer++; 716 rx->ra_disk.dk_bytes += bp->b_bcount; 717 mscp_strategy(bp, rx->ra_dev.dv_parent); 718 return; 719 720 done: 721 biodone(bp); 722 } 723 724 int 725 rxread(dev, uio, flag) 726 dev_t dev; 727 struct uio *uio; 728 int flag; 729 { 730 731 return (physio(rxstrategy, NULL, dev, B_READ, minphys, uio)); 732 } 733 734 int 735 rxwrite(dev, uio, flag) 736 dev_t dev; 737 struct uio *uio; 738 int flag; 739 { 740 741 return (physio(rxstrategy, NULL, dev, B_WRITE, minphys, uio)); 742 } 743 744 /* 745 * I/O controls. 746 */ 747 int 748 rxioctl(dev, cmd, data, flag, p) 749 dev_t dev; 750 u_long cmd; 751 caddr_t data; 752 int flag; 753 struct proc *p; 754 { 755 int unit = DISKUNIT(dev); 756 struct disklabel *lp; 757 struct rx_softc *rx = rx_cd.cd_devs[unit]; 758 int error = 0; 759 760 lp = rx->ra_disk.dk_label; 761 762 switch (cmd) { 763 764 case DIOCGDINFO: 765 bcopy(lp, data, sizeof (struct disklabel)); 766 break; 767 768 case DIOCGPART: 769 ((struct partinfo *)data)->disklab = lp; 770 ((struct partinfo *)data)->part = 771 &lp->d_partitions[DISKPART(dev)]; 772 break; 773 774 775 case DIOCWDINFO: 776 case DIOCSDINFO: 777 case DIOCWLABEL: 778 break; 779 780 default: 781 error = ENOTTY; 782 break; 783 } 784 return (error); 785 } 786 787 int 788 rxdump(dev, blkno, va, size) 789 dev_t dev; 790 daddr_t blkno; 791 caddr_t va; 792 size_t size; 793 { 794 795 /* Not likely. */ 796 return ENXIO; 797 } 798 799 int 800 rxsize(dev) 801 dev_t dev; 802 { 803 804 return -1; 805 } 806 807 #endif /* NRX */ 808 809 void rrdgram __P((struct device *, struct mscp *, struct mscp_softc *)); 810 void rriodone __P((struct device *, struct buf *)); 811 int rronline __P((struct device *, struct mscp *)); 812 int rrgotstatus __P((struct device *, struct mscp *)); 813 void rrreplace __P((struct device *, struct mscp *)); 814 int rrioerror __P((struct device *, struct mscp *, struct buf *)); 815 void rrfillin __P((struct buf *, struct mscp *)); 816 void rrbb __P((struct device *, struct mscp *, struct buf *)); 817 818 819 struct mscp_device ra_device = { 820 rrdgram, 821 rriodone, 822 rronline, 823 rrgotstatus, 824 rrreplace, 825 rrioerror, 826 rrbb, 827 rrfillin, 828 }; 829 830 /* 831 * Handle an error datagram. 832 * This can come from an unconfigured drive as well. 833 */ 834 void 835 rrdgram(usc, mp, mi) 836 struct device *usc; 837 struct mscp *mp; 838 struct mscp_softc *mi; 839 { 840 if (mscp_decodeerror(usc == NULL?"unconf disk" : usc->dv_xname, mp, mi)) 841 return; 842 /* 843 * SDI status information bytes 10 and 11 are the microprocessor 844 * error code and front panel code respectively. These vary per 845 * drive type and are printed purely for field service information. 846 */ 847 if (mp->mscp_format == M_FM_SDI) 848 printf("\tsdi uproc error code 0x%x, front panel code 0x%x\n", 849 mp->mscp_erd.erd_sdistat[10], 850 mp->mscp_erd.erd_sdistat[11]); 851 } 852 853 void 854 rriodone(usc, bp) 855 struct device *usc; 856 struct buf *bp; 857 { 858 859 biodone(bp); 860 } 861 862 /* 863 * A drive came on line. Check its type and size. Return DONE if 864 * we think the drive is truly on line. In any case, awaken anyone 865 * sleeping on the drive on-line-ness. 866 */ 867 int 868 rronline(usc, mp) 869 struct device *usc; 870 struct mscp *mp; 871 { 872 struct rx_softc *rx = (struct rx_softc *)usc; 873 struct disklabel *dl; 874 875 wakeup((caddr_t)&usc->dv_unit); 876 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 877 printf("%s: attempt to bring on line failed: ", usc->dv_xname); 878 mscp_printevent(mp); 879 return (MSCP_FAILED); 880 } 881 882 rx->ra_state = DK_OPEN; 883 884 dl = rx->ra_disk.dk_label; 885 dl->d_secperunit = (daddr_t)mp->mscp_onle.onle_unitsize; 886 887 if (dl->d_secpercyl) { 888 dl->d_ncylinders = dl->d_secperunit/dl->d_secpercyl; 889 dl->d_type = DTYPE_MSCP; 890 dl->d_rpm = 3600; 891 } else { 892 dl->d_type = DTYPE_FLOPPY; 893 dl->d_rpm = 300; 894 } 895 rrmakelabel(dl, rx->ra_mediaid); 896 897 return (MSCP_DONE); 898 } 899 900 void 901 rrmakelabel(dl, type) 902 struct disklabel *dl; 903 long type; 904 { 905 int n, p = 0; 906 907 dl->d_bbsize = BBSIZE; 908 dl->d_sbsize = SBSIZE; 909 910 /* Create the disk name for disklabel. Phew... */ 911 dl->d_typename[p++] = MSCP_MID_CHAR(2, type); 912 dl->d_typename[p++] = MSCP_MID_CHAR(1, type); 913 if (MSCP_MID_ECH(0, type)) 914 dl->d_typename[p++] = MSCP_MID_CHAR(0, type); 915 n = MSCP_MID_NUM(type); 916 if (n > 99) { 917 dl->d_typename[p++] = '1'; 918 n -= 100; 919 } 920 if (n > 9) { 921 dl->d_typename[p++] = (n / 10) + '0'; 922 n %= 10; 923 } 924 dl->d_typename[p++] = n + '0'; 925 dl->d_typename[p] = 0; 926 dl->d_npartitions = MAXPARTITIONS; 927 dl->d_partitions[0].p_size = dl->d_partitions[2].p_size = 928 dl->d_secperunit; 929 dl->d_partitions[0].p_offset = dl->d_partitions[2].p_offset = 0; 930 dl->d_interleave = dl->d_headswitch = 1; 931 dl->d_magic = dl->d_magic2 = DISKMAGIC; 932 dl->d_checksum = dkcksum(dl); 933 } 934 935 /* 936 * We got some (configured) unit's status. Return DONE if it succeeded. 937 */ 938 int 939 rrgotstatus(usc, mp) 940 struct device *usc; 941 struct mscp *mp; 942 { 943 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 944 printf("%s: attempt to get status failed: ", usc->dv_xname); 945 mscp_printevent(mp); 946 return (MSCP_FAILED); 947 } 948 /* record for (future) bad block forwarding and whatever else */ 949 #ifdef notyet 950 uda_rasave(ui->ui_unit, mp, 1); 951 #endif 952 return (MSCP_DONE); 953 } 954 955 /* 956 * A replace operation finished. 957 */ 958 /*ARGSUSED*/ 959 void 960 rrreplace(usc, mp) 961 struct device *usc; 962 struct mscp *mp; 963 { 964 965 panic("udareplace"); 966 } 967 968 /* 969 * A transfer failed. We get a chance to fix or restart it. 970 * Need to write the bad block forwaring code first.... 971 */ 972 /*ARGSUSED*/ 973 int 974 rrioerror(usc, mp, bp) 975 struct device *usc; 976 struct mscp *mp; 977 struct buf *bp; 978 { 979 struct ra_softc *ra = (void *)usc; 980 int code = mp->mscp_event; 981 982 switch (code & M_ST_MASK) { 983 /* The unit has fallen offline. Try to figure out why. */ 984 case M_ST_OFFLINE: 985 bp->b_flags |= B_ERROR; 986 bp->b_error = EIO; 987 ra->ra_state = DK_CLOSED; 988 if (code & M_OFFLINE_UNMOUNTED) 989 printf("%s: not mounted/spun down\n", usc->dv_xname); 990 if (code & M_OFFLINE_DUPLICATE) 991 printf("%s: duplicate unit number!!!\n", usc->dv_xname); 992 return MSCP_DONE; 993 994 case M_ST_AVAILABLE: 995 ra->ra_state = DK_CLOSED; /* Force another online */ 996 return MSCP_DONE; 997 998 default: 999 printf("%s:", usc->dv_xname); 1000 break; 1001 } 1002 return (MSCP_FAILED); 1003 } 1004 1005 /* 1006 * Fill in disk addresses in a mscp packet waiting for transfer. 1007 */ 1008 void 1009 rrfillin(bp, mp) 1010 struct buf *bp; 1011 struct mscp *mp; 1012 { 1013 struct rx_softc *rx = 0; /* Wall */ 1014 struct disklabel *lp; 1015 int unit = DISKUNIT(bp->b_dev); 1016 int part = DISKPART(bp->b_dev); 1017 1018 #if NRA 1019 if (cdevsw_lookup(bp->b_dev) == &ra_cdevsw) 1020 rx = ra_cd.cd_devs[unit]; 1021 #endif 1022 #if NRX 1023 if (cdevsw_lookup(bp->b_dev) == &rx_cdevsw) 1024 rx = rx_cd.cd_devs[unit]; 1025 #endif 1026 lp = rx->ra_disk.dk_label; 1027 1028 mp->mscp_seq.seq_lbn = lp->d_partitions[part].p_offset + bp->b_blkno; 1029 mp->mscp_unit = rx->ra_hwunit; 1030 mp->mscp_seq.seq_bytecount = bp->b_bcount; 1031 } 1032 1033 /* 1034 * A bad block related operation finished. 1035 */ 1036 /*ARGSUSED*/ 1037 void 1038 rrbb(usc, mp, bp) 1039 struct device *usc; 1040 struct mscp *mp; 1041 struct buf *bp; 1042 { 1043 1044 panic("udabb"); 1045 } 1046
Indexes created Thu Oct 02 01:09:59 GMT 2025