1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that this notice is preserved and that due credit is given 7 * to the University of California at Berkeley. The name of the University 8 * may not be used to endorse or promote products derived from this 9 * software without specific prior written permission. This software 10 * is provided ``as is'' without express or implied warranty. 11 * 12 * @(#)vd.c 1.27 (Berkeley) 05/31/88 13 */ 14 15 #include "dk.h" 16 #if NVD > 0 17 /* 18 * Versabus VDDC/SMDE driver. 19 */ 20 #include "param.h" 21 #include "buf.h" 22 #include "cmap.h" 23 #include "conf.h" 24 #include "dir.h" 25 #include "dkstat.h" 26 #include "disklabel.h" 27 #include "map.h" 28 #include "file.h" 29 #include "systm.h" 30 #include "user.h" 31 #include "vmmac.h" 32 #include "proc.h" 33 #include "uio.h" 34 #include "syslog.h" 35 #include "kernel.h" 36 #include "ioctl.h" 37 #include "stat.h" 38 39 #include "../tahoe/cpu.h" 40 #include "../tahoe/mtpr.h" 41 #include "../tahoe/pte.h" 42 43 #include "../tahoevba/vbavar.h" 44 #include "../tahoevba/vdreg.h" 45 46 #ifndef COMPAT_42 47 #define COMPAT_42 48 #endif 49 #define B_FORMAT B_XXX /* XXX */ 50 51 #define vdunit(dev) (minor(dev) >> 3) 52 #define vdpart(dev) (minor(dev) & 0x07) 53 #define vdminor(unit,part) (((unit) << 3) | (part)) 54 55 struct vba_ctlr *vdminfo[NVD]; 56 struct vba_device *vddinfo[NDK]; 57 int vdprobe(), vdslave(), vdattach(), vddgo(), vdstrategy(); 58 long vdstd[] = { 0xffff2000, 0xffff2100, 0xffff2200, 0xffff2300, 0 }; 59 struct vba_driver vddriver = 60 { vdprobe, vdslave, vdattach, vddgo, vdstd, "dk", vddinfo, "vd", vdminfo }; 61 62 /* 63 * Per-controller state. 64 */ 65 struct vdsoftc { 66 u_short vd_flags; 67 #define VD_INIT 0x1 /* controller initialized */ 68 #define VD_STARTED 0x2 /* start command issued */ 69 #define VD_DOSEEKS 0x4 /* should overlap seeks */ 70 #define VD_SCATGATH 0x8 /* can do scatter-gather commands (correctly) */ 71 u_short vd_type; /* controller type */ 72 u_short vd_wticks; /* timeout */ 73 struct mdcb vd_mdcb; /* master command block */ 74 u_long vd_mdcbphys; /* physical address of vd_mdcb */ 75 struct dcb vd_dcb; /* i/o command block */ 76 u_long vd_dcbphys; /* physical address of vd_dcb */ 77 struct vb_buf vd_rbuf; /* vba resources */ 78 } vdsoftc[NVD]; 79 80 #define VDMAXTIME 20 /* max time for operation, sec. */ 81 82 /* 83 * Per-drive state. 84 */ 85 struct dksoftc { 86 int dk_state; /* open fsm */ 87 #ifndef SECSIZE 88 u_short dk_bshift; /* shift for * (DEV_BSIZE / sectorsize) XXX */ 89 #endif SECSIZE 90 int dk_wlabel; /* label sector is currently writable */ 91 u_long dk_copenpart; /* character units open on this drive */ 92 u_long dk_bopenpart; /* block units open on this drive */ 93 u_long dk_openpart; /* all units open on this drive */ 94 u_int dk_curcyl; /* last selected cylinder */ 95 struct skdcb dk_dcb; /* seek command block */ 96 u_long dk_dcbphys; /* physical address of dk_dcb */ 97 int df_reg[3]; /* for formatting, in-out parameters */ 98 } dksoftc[NDK]; 99 100 /* 101 * Drive states. Used during steps of open/initialization. 102 * States < OPEN (> 0) are transient, during an open operation. 103 * OPENRAW is used for unlabeled disks, to allow format operations. 104 */ 105 #define CLOSED 0 /* disk is closed */ 106 #define WANTOPEN 1 /* open requested, not started */ 107 #define WANTOPENRAW 2 /* open requested, no label */ 108 #define RDLABEL 3 /* reading pack label */ 109 #define OPEN 4 /* intialized and ready */ 110 #define OPENRAW 5 /* open, no label */ 111 112 struct buf dkutab[NDK]; /* i/o queue headers */ 113 struct disklabel dklabel[NDK]; /* pack labels */ 114 115 #define b_cylin b_resid 116 #define b_track b_error /* used for seek commands */ 117 #define b_seekf b_forw /* second queue on um_tab */ 118 #define b_seekl b_back /* second queue on um_tab */ 119 120 int vdwstart, vdwatch(); 121 122 /* 123 * See if the controller is really there; if so, initialize it. 124 */ 125 vdprobe(reg, vm) 126 caddr_t reg; 127 struct vba_ctlr *vm; 128 { 129 register br, cvec; /* must be r12, r11 */ 130 register struct vddevice *vdaddr = (struct vddevice *)reg; 131 struct vdsoftc *vd; 132 int s; 133 134 #ifdef lint 135 br = 0; cvec = br; br = cvec; 136 vdintr(0); 137 #endif 138 if (badaddr((caddr_t)reg, 2)) 139 return (0); 140 vd = &vdsoftc[vm->um_ctlr]; 141 vdaddr->vdreset = 0xffffffff; 142 DELAY(1000000); 143 if (vdaddr->vdreset != (unsigned)0xffffffff) { 144 vd->vd_type = VDTYPE_VDDC; 145 vd->vd_flags &= ~VD_DOSEEKS; 146 DELAY(1000000); 147 } else { 148 vd->vd_type = VDTYPE_SMDE; 149 vd->vd_flags |= VD_DOSEEKS; 150 vdaddr->vdrstclr = 0; 151 DELAY(3000000); 152 vdaddr->vdcsr = 0; 153 vdaddr->vdtcf_mdcb = AM_ENPDA; 154 vdaddr->vdtcf_dcb = AM_ENPDA; 155 vdaddr->vdtcf_trail = AM_ENPDA; 156 vdaddr->vdtcf_data = AM_ENPDA; 157 vdaddr->vdccf = CCF_SEN | CCF_DER | CCF_STS | 158 XMD_32BIT | BSZ_16WRD | 159 CCF_ENP | CCF_EPE | CCF_EDE | CCF_ECE | CCF_ERR; 160 } 161 vd->vd_mdcbphys = vtoph((struct proc *)0, (unsigned)&vd->vd_mdcb); 162 vd->vd_dcbphys = vtoph((struct proc *)0, (unsigned)&vd->vd_dcb); 163 vm->um_addr = reg; /* XXX */ 164 s = spl7(); 165 if (!vdcmd(vm, VDOP_INIT, 10) || !vdcmd(vm, VDOP_DIAG, 10)) { 166 printf("vd%d: %s cmd failed\n", vm->um_ctlr, 167 vd->vd_dcb.opcode == VDOP_INIT ? "init" : "diag"); 168 splx(s); 169 return (0); 170 } 171 if (vd->vd_type == VDTYPE_SMDE) { 172 vd->vd_dcb.trail.idtrail.date = 0; 173 if (vdcmd(vm, VDOP_IDENT, 10)) { 174 uncache(&vd->vd_dcb.trail.idtrail.date); 175 if (vd->vd_dcb.trail.idtrail.date != 0) 176 vd->vd_flags |= VD_SCATGATH; 177 } 178 } 179 splx(s); 180 /* 181 * Allocate page tables and i/o buffer. 182 */ 183 if (vbainit(&vd->vd_rbuf, MAXPHYS, 184 vd->vd_type == VDTYPE_VDDC ? VB_24BIT : VB_32BIT) == 0) { 185 printf("vd%d: vbainit failed\n", vm->um_ctlr); 186 return (0); 187 } 188 br = 0x17, cvec = 0xe0 + vm->um_ctlr; /* XXX */ 189 return (sizeof (struct vddevice)); 190 } 191 192 /* 193 * See if a drive is really there. 194 * 195 * Can't read pack label here as various data structures 196 * aren't setup for doing a read in a straightforward 197 * manner. Instead just probe for the drive and leave 198 * the pack label stuff to the attach routine. 199 */ 200 /* ARGSUSED */ 201 vdslave(vi, vdaddr) 202 register struct vba_device *vi; 203 struct vddevice *vdaddr; 204 { 205 register struct disklabel *lp = &dklabel[vi->ui_unit]; 206 register struct dksoftc *dk = &dksoftc[vi->ui_unit]; 207 struct vdsoftc *vd = &vdsoftc[vi->ui_ctlr]; 208 209 if ((vd->vd_flags&VD_INIT) == 0) { 210 printf("vd%d: %s controller%s\n", vi->ui_ctlr, 211 vd->vd_type == VDTYPE_VDDC ? "VDDC" : "SMDE", 212 (vd->vd_flags & VD_SCATGATH) ? " with scatter-gather" : ""); 213 vd->vd_flags |= VD_INIT; 214 } 215 216 /* 217 * Initialize label enough to do a reset on 218 * the drive. The remainder of the default 219 * label values will be filled in in vdinit 220 * at attach time. 221 */ 222 if (vd->vd_type == VDTYPE_SMDE) 223 lp->d_secsize = VD_MAXSECSIZE; 224 else 225 lp->d_secsize = VDDC_SECSIZE; 226 lp->d_nsectors = 66; /* only used on smd-e */ 227 lp->d_ntracks = 23; 228 lp->d_ncylinders = 850; 229 lp->d_secpercyl = 66*23; 230 231 /* 232 * Initialize invariant portion of 233 * dcb used for overlapped seeks. 234 */ 235 dk->dk_dcb.opcode = VDOP_SEEK; 236 dk->dk_dcb.intflg = DCBINT_NONE | DCBINT_PBA; 237 dk->dk_dcb.devselect = vi->ui_slave; 238 dk->dk_dcb.trailcnt = sizeof (struct trseek) / sizeof (long); 239 dk->dk_dcb.trail.sktrail.skaddr.sector = 0; 240 dk->dk_dcbphys = vtoph((struct proc *)0, (unsigned)&dk->dk_dcb); 241 #ifndef SECSIZE 242 vd_setsecsize(dk, lp); 243 #endif 244 return (vdreset_drive(vi)); 245 } 246 247 vdattach(vi) 248 register struct vba_device *vi; 249 { 250 register int unit = vi->ui_unit; 251 register struct disklabel *lp = &dklabel[unit]; 252 253 /* 254 * Try to initialize device and read pack label. 255 */ 256 if (vdinit(vdminor(unit, 0), 0) != 0) { 257 printf(": unknown drive type"); 258 return; 259 } 260 if (dksoftc[unit].dk_state == OPEN) 261 printf(": %s <secsize %d, ntrak %d, ncyl %d, nsec %d>", 262 lp->d_typename, lp->d_secsize, 263 lp->d_ntracks, lp->d_ncylinders, lp->d_nsectors); 264 /* 265 * (60 / rpm) / (sectors per track * (bytes per sector / 2)) 266 */ 267 if (vi->ui_dk >= 0) 268 dk_mspw[vi->ui_dk] = 120.0 / 269 (lp->d_rpm * lp->d_nsectors * lp->d_secsize); 270 #ifdef notyet 271 addswap(makedev(VDMAJOR, vdminor(unit, 0)), lp); 272 #endif 273 } 274 275 vdopen(dev, flags, fmt) 276 dev_t dev; 277 int flags, fmt; 278 { 279 register unit = vdunit(dev); 280 register struct disklabel *lp; 281 register struct dksoftc *dk; 282 register struct partition *pp; 283 struct vba_device *vi; 284 int s, error, part = vdpart(dev), mask = 1 << part; 285 daddr_t start, end; 286 287 if (unit >= NDK || (vi = vddinfo[unit]) == 0 || vi->ui_alive == 0) 288 return (ENXIO); 289 lp = &dklabel[unit]; 290 dk = &dksoftc[unit]; 291 292 s = spl7(); 293 while (dk->dk_state != OPEN && dk->dk_state != OPENRAW && 294 dk->dk_state != CLOSED) 295 sleep((caddr_t)dk, PZERO+1); 296 splx(s); 297 if (dk->dk_state != OPEN && dk->dk_state != OPENRAW) 298 if (error = vdinit(dev, flags)) 299 return (error); 300 301 if (vdwstart == 0) { 302 timeout(vdwatch, (caddr_t)0, hz); 303 vdwstart++; 304 } 305 /* 306 * Warn if a partion is opened 307 * that overlaps another partition which is open 308 * unless one is the "raw" partition (whole disk). 309 */ 310 #define RAWPART 8 /* 'x' partition */ /* XXX */ 311 if ((dk->dk_openpart & mask) == 0 && part != RAWPART) { 312 pp = &lp->d_partitions[part]; 313 start = pp->p_offset; 314 end = pp->p_offset + pp->p_size; 315 for (pp = lp->d_partitions; 316 pp < &lp->d_partitions[lp->d_npartitions]; pp++) { 317 if (pp->p_offset + pp->p_size <= start || 318 pp->p_offset >= end) 319 continue; 320 if (pp - lp->d_partitions == RAWPART) 321 continue; 322 if (dk->dk_openpart & (1 << (pp - lp->d_partitions))) 323 log(LOG_WARNING, 324 "dk%d%c: overlaps open partition (%c)\n", 325 unit, part + 'a', 326 pp - lp->d_partitions + 'a'); 327 } 328 } 329 if (part >= lp->d_npartitions) 330 return (ENXIO); 331 dk->dk_openpart |= mask; 332 switch (fmt) { 333 case S_IFCHR: 334 dk->dk_copenpart |= mask; 335 break; 336 case S_IFBLK: 337 dk->dk_bopenpart |= mask; 338 break; 339 } 340 return (0); 341 } 342 343 /* ARGSUSED */ 344 vdclose(dev, flags, fmt) 345 dev_t dev; 346 int flags, fmt; 347 { 348 register int unit = vdunit(dev); 349 register struct dksoftc *dk = &dksoftc[unit]; 350 int part = vdpart(dev), mask = 1 << part; 351 352 switch (fmt) { 353 case S_IFCHR: 354 dk->dk_copenpart &= ~mask; 355 break; 356 case S_IFBLK: 357 dk->dk_bopenpart &= ~mask; 358 break; 359 } 360 if (((dk->dk_copenpart | dk->dk_bopenpart) & mask) == 0) 361 dk->dk_openpart &= ~mask; 362 /* 363 * Should wait for i/o to complete on this partition 364 * even if others are open, but wait for work on blkflush(). 365 */ 366 if (dk->dk_openpart == 0) { 367 int s = spl7(); 368 while (dkutab[unit].b_actf) 369 sleep((caddr_t)dk, PZERO-1); 370 splx(s); 371 dk->dk_state = CLOSED; 372 dk->dk_wlabel = 0; 373 } 374 return (0); 375 } 376 377 vdinit(dev, flags) 378 dev_t dev; 379 int flags; 380 { 381 register struct disklabel *lp; 382 register struct dksoftc *dk; 383 struct vba_device *vi; 384 int unit = vdunit(dev), error = 0; 385 char *msg, *readdisklabel(); 386 extern int cold; 387 388 dk = &dksoftc[unit]; 389 if (flags & O_NDELAY) { 390 dk->dk_state = OPENRAW; 391 return (0); 392 } 393 dk->dk_state = RDLABEL; 394 lp = &dklabel[unit]; 395 vi = vddinfo[unit]; 396 if (msg = readdisklabel(dev, vdstrategy, lp)) { 397 if (cold) { 398 printf(": %s", msg); 399 dk->dk_state = CLOSED; 400 } else { 401 log(LOG_ERR, "dk%d: %s\n", unit, msg); 402 dk->dk_state = OPENRAW; 403 } 404 #ifdef COMPAT_42 405 if (vdmaptype(vi, lp)) 406 dk->dk_state = OPEN; 407 #endif 408 } else { 409 /* 410 * Now that we have the label, configure 411 * the correct drive parameters. 412 */ 413 if (vdreset_drive(vi)) 414 dk->dk_state = OPEN; 415 else { 416 dk->dk_state = CLOSED; 417 error = ENXIO; 418 } 419 } 420 #ifndef SECSIZE 421 vd_setsecsize(dk, lp); 422 #endif 423 wakeup((caddr_t)dk); 424 return (error); 425 } 426 427 #ifndef SECSIZE 428 vd_setsecsize(dk, lp) 429 register struct dksoftc *dk; 430 register struct disklabel *lp; 431 { 432 int mul; 433 434 /* 435 * Calculate scaling shift for mapping 436 * DEV_BSIZE blocks to drive sectors. 437 */ 438 mul = DEV_BSIZE / lp->d_secsize; 439 dk->dk_bshift = 0; 440 while ((mul >>= 1) > 0) 441 dk->dk_bshift++; 442 } 443 #endif SECSIZE 444 445 /*ARGSUSED*/ 446 vddgo(vm) 447 struct vba_device *vm; 448 { 449 450 } 451 452 vdstrategy(bp) 453 register struct buf *bp; 454 { 455 register struct vba_device *vi; 456 register struct disklabel *lp; 457 register struct dksoftc *dk; 458 register int unit; 459 register daddr_t sn; 460 struct buf *dp; 461 daddr_t sz, maxsz; 462 int part, s; 463 464 unit = vdunit(bp->b_dev); 465 if (unit >= NDK) { 466 bp->b_error = ENXIO; 467 goto bad; 468 } 469 vi = vddinfo[unit]; 470 lp = &dklabel[unit]; 471 if (vi == 0 || vi->ui_alive == 0) { 472 bp->b_error = ENXIO; 473 goto bad; 474 } 475 dk = &dksoftc[unit]; 476 if (dk->dk_state < OPEN) 477 goto q; 478 if (dk->dk_state != OPEN && (bp->b_flags & B_READ) == 0) { 479 bp->b_error = EROFS; 480 goto bad; 481 } 482 part = vdpart(bp->b_dev); 483 if ((dk->dk_openpart & (1 << part)) == 0) { 484 bp->b_error = ENODEV; 485 goto bad; 486 } 487 sz = (bp->b_bcount + lp->d_secsize - 1) / lp->d_secsize; 488 maxsz = lp->d_partitions[part].p_size; 489 #ifndef SECSIZE 490 sn = bp->b_blkno << dk->dk_bshift; 491 #else SECSIZE 492 sn = bp->b_blkno; 493 #endif SECSIZE 494 if (sn + lp->d_partitions[part].p_offset <= LABELSECTOR && 495 #if LABELSECTOR != 0 496 sn + lp->d_partitions[part].p_offset + sz > LABELSECTOR && 497 #endif 498 (bp->b_flags & B_READ) == 0 && dk->dk_wlabel == 0) { 499 bp->b_error = EROFS; 500 goto bad; 501 } 502 if (sn < 0 || sn + sz > maxsz) { 503 if (sn == maxsz) { 504 bp->b_resid = bp->b_bcount; 505 goto done; 506 } 507 sz = maxsz - sn; 508 if (sz <= 0) { 509 bp->b_error = EINVAL; 510 goto bad; 511 } 512 bp->b_bcount = sz * lp->d_secsize; 513 } 514 bp->b_cylin = (sn + lp->d_partitions[part].p_offset) / lp->d_secpercyl; 515 #ifdef SECSIZE 516 if (bp->b_blksize != lp->d_secsize && (bp->b_flags & B_PGIN) == 0) 517 panic("vdstrat blksize"); 518 #endif SECSIZE 519 q: 520 s = spl7(); 521 dp = &dkutab[vi->ui_unit]; 522 disksort(dp, bp); 523 if (!dp->b_active) { 524 (void) vdustart(vi); 525 if (!vi->ui_mi->um_tab.b_active) 526 vdstart(vi->ui_mi); 527 } 528 splx(s); 529 return; 530 bad: 531 bp->b_flags |= B_ERROR; 532 done: 533 biodone(bp); 534 return; 535 } 536 537 vdustart(vi) 538 register struct vba_device *vi; 539 { 540 register struct buf *bp, *dp; 541 register struct vba_ctlr *vm; 542 register int unit = vi->ui_unit; 543 register struct dksoftc *dk; 544 register struct vdsoftc *vd; 545 struct disklabel *lp; 546 547 dp = &dkutab[unit]; 548 /* 549 * If queue empty, nothing to do. 550 */ 551 if ((bp = dp->b_actf) == NULL) 552 return; 553 /* 554 * If drive is off-cylinder and controller supports seeks, 555 * place drive on seek queue for controller. 556 * Otherwise, place on transfer queue. 557 */ 558 vd = &vdsoftc[vi->ui_ctlr]; 559 dk = &dksoftc[unit]; 560 vm = vi->ui_mi; 561 if (bp->b_cylin != dk->dk_curcyl && vd->vd_flags&VD_DOSEEKS) { 562 lp = &dklabel[unit]; 563 bp->b_track = (bp->b_blkno % lp->d_secpercyl) / lp->d_nsectors; 564 if (vm->um_tab.b_seekf == NULL) 565 vm->um_tab.b_seekf = dp; 566 else 567 vm->um_tab.b_seekl->b_forw = dp; 568 vm->um_tab.b_seekl = dp; 569 } else { 570 if (vm->um_tab.b_actf == NULL) 571 vm->um_tab.b_actf = dp; 572 else 573 vm->um_tab.b_actl->b_forw = dp; 574 vm->um_tab.b_actl = dp; 575 } 576 dp->b_forw = NULL; 577 dp->b_active++; 578 } 579 580 /* 581 * Start next transfer on a controller. 582 * There are two queues of drives, the first on-cylinder 583 * and the second off-cylinder from their next transfers. 584 * Perform the first transfer for the first drive on the on-cylinder 585 * queue, if any, otherwise the first transfer for the first drive 586 * on the second queue. Initiate seeks on remaining drives on the 587 * off-cylinder queue, then move them all to the on-cylinder queue. 588 */ 589 vdstart(vm) 590 register struct vba_ctlr *vm; 591 { 592 register struct buf *bp; 593 register struct vba_device *vi; 594 register struct vdsoftc *vd; 595 register struct dksoftc *dk; 596 register struct disklabel *lp; 597 register struct dcb **dcbp; 598 struct buf *dp; 599 int sn, tn; 600 601 loop: 602 /* 603 * Pull a request off the controller queue. 604 */ 605 if ((dp = vm->um_tab.b_actf) == NULL && 606 (dp = vm->um_tab.b_seekf) == NULL) 607 return; 608 if ((bp = dp->b_actf) == NULL) { 609 if (dp == vm->um_tab.b_actf) 610 vm->um_tab.b_actf = dp->b_forw; 611 else 612 vm->um_tab.b_seekf = dp->b_forw; 613 goto loop; 614 } 615 616 /* 617 * Mark controller busy, and determine 618 * destination of this request. 619 */ 620 vm->um_tab.b_active++; 621 vi = vddinfo[vdunit(bp->b_dev)]; 622 dk = &dksoftc[vi->ui_unit]; 623 #ifndef SECSIZE 624 sn = bp->b_blkno << dk->dk_bshift; 625 #else SECSIZE 626 sn = bp->b_blkno; 627 #endif SECSIZE 628 lp = &dklabel[vi->ui_unit]; 629 sn %= lp->d_secpercyl; 630 tn = sn / lp->d_nsectors; 631 sn %= lp->d_nsectors; 632 633 /* 634 * Construct dcb for read/write command. 635 */ 636 vd = &vdsoftc[vm->um_ctlr]; 637 vd->vd_dcb.intflg = DCBINT_DONE; 638 vd->vd_dcb.devselect = dk->dk_dcb.devselect; 639 vd->vd_dcb.operrsta = 0; 640 vd->vd_dcb.nxtdcb = (struct dcb *)0; /* end of chain */ 641 vd->vd_dcb.trail.rwtrail.disk.cylinder = bp->b_cylin; 642 vd->vd_dcb.trail.rwtrail.disk.track = tn; 643 vd->vd_dcb.trail.rwtrail.disk.sector = sn; 644 dk->dk_curcyl = bp->b_cylin; 645 bp->b_track = 0; /* init overloaded field */ 646 vd->vd_dcb.trailcnt = sizeof (struct trrw) / sizeof (long); 647 if (bp->b_flags & B_FORMAT) 648 vd->vd_dcb.opcode = dk->dk_op; 649 else if (vd->vd_flags & VD_SCATGATH && 650 ((int)bp->b_un.b_addr & (sizeof(long) - 1)) == 0) 651 vd->vd_dcb.opcode = (bp->b_flags & B_READ)? VDOP_RAS : VDOP_GAW; 652 else 653 vd->vd_dcb.opcode = (bp->b_flags & B_READ)? VDOP_RD : VDOP_WD; 654 655 switch (vd->vd_dcb.opcode) { 656 case VDOP_FSECT: 657 vd->vd_dcb.trailcnt = sizeof (struct trrw) / sizeof (long); 658 vd->vd_dcb.trail.fmtrail.nsectors = bp->b_bcount / 659 lp->d_secsize; 660 vd->vd_dcb.trail.fmtrail.hdr = *(dskadr *)&dk->dk_althdr; 661 vd->vd_dcb.trail.rwtrail.disk.cylinder |= dk->dk_fmtflags; 662 goto setupaddr; 663 664 case VDOP_RDRAW: 665 case VDOP_RD: 666 case VDOP_WD: 667 vd->vd_dcb.trail.rwtrail.wcount = (bp->b_bcount+1) >> 1; 668 setupaddr: 669 vd->vd_dcb.trail.rwtrail.memadr = 670 vbasetup(bp, &vd->vd_rbuf, (int)lp->d_secsize); 671 break; 672 673 case VDOP_RAS: 674 case VDOP_GAW: 675 vd->vd_dcb.trailcnt += vba_sgsetup(bp, &vd->vd_rbuf, 676 &vd->vd_dcb.trail.sgtrail); 677 break; 678 } 679 if (vi->ui_dk >= 0) { 680 dk_busy |= 1<<vi->ui_dk; 681 dk_xfer[vi->ui_dk]++; 682 dk_wds[vi->ui_dk] += bp->b_bcount>>6; 683 } 684 685 /* 686 * Look for any seeks to be performed on other drives on this 687 * controller. If overlapped seeks exist, insert seek commands 688 * on the controller's command queue before the transfer. 689 */ 690 dcbp = &vd->vd_mdcb.mdcb_head; 691 692 if (dp == vm->um_tab.b_seekf) 693 dp = dp->b_forw; 694 else 695 dp = vm->um_tab.b_seekf; 696 for (; dp != NULL; dp = dp->b_forw) { 697 if ((bp = dp->b_actf) == NULL) 698 continue; 699 vi = vddinfo[vdunit(bp->b_dev)]; 700 dk = &dksoftc[vi->ui_unit]; 701 dk->dk_curcyl = bp->b_cylin; 702 if (vi->ui_dk >= 0) 703 dk_seek[vi->ui_dk]++; 704 dk->dk_dcb.operrsta = 0; 705 dk->dk_dcb.trail.sktrail.skaddr.cylinder = bp->b_cylin; 706 dk->dk_dcb.trail.sktrail.skaddr.track = bp->b_track; 707 *dcbp = (struct dcb *)dk->dk_dcbphys; 708 dcbp = &dk->dk_dcb.nxtdcb; 709 } 710 *dcbp = (struct dcb *)vd->vd_dcbphys; 711 if (vm->um_tab.b_actf) 712 vm->um_tab.b_actl->b_forw = vm->um_tab.b_seekf; 713 else 714 vm->um_tab.b_actf = vm->um_tab.b_seekf; 715 if (vm->um_tab.b_seekf) 716 vm->um_tab.b_actl = vm->um_tab.b_seekl; 717 vm->um_tab.b_seekf = 0; 718 719 /* 720 * Initiate operation. 721 */ 722 vd->vd_mdcb.mdcb_status = 0; 723 VDGO(vm->um_addr, vd->vd_mdcbphys, vd->vd_type); 724 } 725 726 #define DONTCARE (DCBS_DSE|DCBS_DSL|DCBS_TOP|DCBS_TOM|DCBS_FAIL|DCBS_DONE) 727 /* 728 * Handle a disk interrupt. 729 */ 730 vdintr(ctlr) 731 register ctlr; 732 { 733 register struct buf *bp, *dp; 734 register struct vba_ctlr *vm = vdminfo[ctlr]; 735 register struct vba_device *vi; 736 register struct vdsoftc *vd = &vdsoftc[ctlr]; 737 register status; 738 int timedout; 739 struct dksoftc *dk; 740 741 if (!vm->um_tab.b_active) { 742 printf("vd%d: stray interrupt\n", ctlr); 743 return; 744 } 745 /* 746 * Get device and block structures, and a pointer 747 * to the vba_device for the drive. 748 */ 749 dp = vm->um_tab.b_actf; 750 bp = dp->b_actf; 751 vi = vddinfo[vdunit(bp->b_dev)]; 752 dk = &dksoftc[vi->ui_unit]; 753 if (vi->ui_dk >= 0) 754 dk_busy &= ~(1<<vi->ui_dk); 755 timedout = (vd->vd_wticks >= VDMAXTIME); 756 /* 757 * Check for and process errors on 758 * either the drive or the controller. 759 */ 760 uncache(&vd->vd_dcb.operrsta); 761 status = vd->vd_dcb.operrsta; 762 if (bp->b_flags & B_FORMAT) { 763 dk->dk_operrsta = status; 764 uncache(&vd->vd_dcb.err_code); 765 dk->dk_ecode = vd->vd_dcb.err_code; 766 } 767 if (status & VDERR_HARD || timedout) { 768 if (vd->vd_type == VDTYPE_SMDE) 769 uncache(&vd->vd_dcb.err_code); 770 if (status & DCBS_WPT) { 771 /* 772 * Give up on write locked devices immediately. 773 */ 774 printf("dk%d: write locked\n", vi->ui_unit); 775 bp->b_flags |= B_ERROR; 776 } else if (status & VDERR_RETRY || timedout) { 777 int endline = 1; 778 779 if (status & VDERR_CTLR || timedout) { 780 vdharderr("controller err", 781 vd, bp, &vd->vd_dcb); 782 printf("; resetting controller..."); 783 vdreset_ctlr(vm); 784 } else if (status & VDERR_DRIVE) { 785 vdharderr("drive err", vd, bp, &vd->vd_dcb); 786 printf("; resetting drive..."); 787 if (!vdreset_drive(vi)) 788 vi->ui_alive = 0; 789 } else 790 endline = 0; 791 /* 792 * Retry transfer once, unless reset failed. 793 */ 794 if (!vi->ui_alive || dp->b_errcnt++ >= 2 || 795 bp->b_flags & B_FORMAT) { 796 if (endline) 797 printf("\n"); 798 goto hard; 799 } 800 801 if (endline) 802 printf(" retrying\n"); 803 vm->um_tab.b_active = 0; /* force retry */ 804 } else { 805 hard: 806 bp->b_flags |= B_ERROR; 807 vdharderr("hard error", vd, bp, &vd->vd_dcb); 808 printf("\n"); 809 } 810 } else if (status & DCBS_SOFT) 811 vdsofterr(bp, &vd->vd_dcb); 812 vd->vd_wticks = 0; 813 if (vm->um_tab.b_active) { 814 vm->um_tab.b_active = 0; 815 vm->um_tab.b_actf = dp->b_forw; 816 dp->b_active = 0; 817 dp->b_errcnt = 0; 818 dp->b_actf = bp->av_forw; 819 bp->b_resid = 0; 820 vbadone(bp, &vd->vd_rbuf); 821 biodone(bp); 822 /* 823 * If this unit has more work to do, 824 * then start it up right away. 825 */ 826 if (dp->b_actf) 827 vdustart(vi); 828 else if (dk->dk_openpart == 0) 829 wakeup((caddr_t)dk); 830 } 831 /* 832 * If there are devices ready to 833 * transfer, start the controller. 834 */ 835 if (vm->um_tab.b_actf || vm->um_tab.b_seekf) 836 vdstart(vm); 837 } 838 839 vdharderr(what, vd, bp, dcb) 840 char *what; 841 struct vdsoftc *vd; 842 register struct buf *bp; 843 register struct dcb *dcb; 844 { 845 int unit = vdunit(bp->b_dev), status = dcb->operrsta; 846 register struct disklabel *lp = &dklabel[unit]; 847 int blkdone; 848 849 if (vd->vd_wticks < VDMAXTIME) 850 status &= ~DONTCARE; 851 blkdone = ((((dcb->err_cyl & 0xfff) * lp->d_ntracks + dcb->err_trk) 852 * lp->d_nsectors + dcb->err_sec) >> dksoftc[unit].dk_bshift) 853 - lp->d_partitions[vdpart(bp->b_dev)].p_offset - bp->b_blkno; 854 diskerr(bp, "dk", what, LOG_PRINTF, blkdone, lp); 855 printf(", status %b", status, VDERRBITS); 856 if (vd->vd_type == VDTYPE_SMDE) 857 printf(" ecode %x", dcb->err_code); 858 } 859 860 vdsofterr(bp, dcb) 861 register struct buf *bp; 862 register struct dcb *dcb; 863 { 864 int unit = vdunit(bp->b_dev); 865 struct disklabel *lp = &dklabel[unit]; 866 int status = dcb->operrsta; 867 int blkdone; 868 869 blkdone = ((((dcb->err_cyl & 0xfff) * lp->d_ntracks + dcb->err_trk) 870 * lp->d_nsectors + dcb->err_sec) >> dksoftc[unit].dk_bshift) 871 - lp->d_partitions[vdpart(bp->b_dev)].p_offset - bp->b_blkno; 872 873 if (status != (DCBS_CCD|DCBS_SOFT|DCBS_ERR|DCBS_DONE)) { 874 diskerr(bp, "dk", "soft error", LOG_WARNING, blkdone, lp); 875 addlog(", status %b ecode %x\n", status, VDERRBITS, 876 dcb->err_code); 877 } else { 878 diskerr(bp, "dk", "soft ecc", LOG_WARNING, blkdone, lp); 879 addlog("\n"); 880 } 881 } 882 883 vdioctl(dev, cmd, data, flag) 884 dev_t dev; 885 int cmd; 886 caddr_t data; 887 int flag; 888 { 889 register int unit = vdunit(dev); 890 register struct disklabel *lp = &dklabel[unit]; 891 register struct dksoftc *dk = &dksoftc[unit]; 892 int error = 0, wlab, vdformat(); 893 894 switch (cmd) { 895 896 case DIOCGDINFO: 897 *(struct disklabel *)data = *lp; 898 break; 899 900 case DIOCGPART: 901 ((struct partinfo *)data)->disklab = lp; 902 ((struct partinfo *)data)->part = 903 &lp->d_partitions[vdpart(dev)]; 904 break; 905 906 case DIOCSDINFO: 907 if ((flag & FWRITE) == 0) 908 error = EBADF; 909 else 910 error = setdisklabel(lp, (struct disklabel *)data, 911 (dk->dk_state == OPENRAW) ? 0 : dk->dk_openpart); 912 if (error == 0 && dk->dk_state == OPENRAW && 913 vdreset_drive(vddinfo[unit])) 914 dk->dk_state = OPEN; 915 break; 916 917 case DIOCWLABEL: 918 if ((flag & FWRITE) == 0) 919 error = EBADF; 920 else 921 dk->dk_wlabel = *(int *)data; 922 break; 923 924 case DIOCWDINFO: 925 /* simulate opening partition 0 so write succeeds */ 926 dk->dk_openpart |= (1 << 0); /* XXX */ 927 wlab = dk->dk_wlabel; 928 dk->dk_wlabel = 1; 929 if ((flag & FWRITE) == 0) 930 error = EBADF; 931 else if ((error = setdisklabel(lp, (struct disklabel *)data, 932 (dk->dk_state == OPENRAW) ? 0 : dk->dk_openpart)) == 0) { 933 dk->dk_state = OPEN; 934 error = writedisklabel(dev, vdstrategy, lp); 935 } 936 dk->dk_openpart = dk->dk_copenpart | dk->dk_bopenpart; 937 dk->dk_wlabel = wlab; 938 break; 939 940 case DIOCWFORMAT: 941 { 942 register struct format_op *fop; 943 struct uio auio; 944 struct iovec aiov; 945 946 if ((flag & FWRITE) == 0) { 947 error = EBADF; 948 break; 949 } 950 fop = (struct format_op *)data; 951 aiov.iov_base = fop->df_buf; 952 aiov.iov_len = fop->df_count; 953 auio.uio_iov = &aiov; 954 auio.uio_iovcnt = 1; 955 auio.uio_resid = fop->df_count; 956 auio.uio_segflg = UIO_USERSPACE; 957 auio.uio_offset = fop->df_startblk * lp->d_secsize; 958 dk->dk_operrsta = fop->dk_operrsta; 959 dk->dk_ecode = fop->dk_ecode; 960 /* 961 * Don't return errors, as the format op won't get copied 962 * out if we return nonzero. Callers must check the returned 963 * count. 964 */ 965 (void) physio(vdformat, (struct buf *)NULL, dev, 966 (cmd == DIOCWFORMAT ? B_WRITE : B_READ), minphys, &auio); 967 fop->df_count -= auio.uio_resid; 968 fop->dk_operrsta = dk->dk_operrsta; 969 fop->dk_ecode = dk->dk_ecode; 970 break; 971 } 972 973 default: 974 error = ENOTTY; 975 break; 976 } 977 return (error); 978 } 979 980 vdformat(bp) 981 struct buf *bp; 982 { 983 bp->b_flags |= B_FORMAT; 984 vdstrategy(bp); 985 } 986 987 /* 988 * Watch for lost interrupts. 989 */ 990 vdwatch() 991 { 992 register struct vdsoftc *vd; 993 register struct vba_ctlr *vm; 994 register int ctlr; 995 int s; 996 997 timeout(vdwatch, (caddr_t)0, hz); 998 for (ctlr = 0; ctlr < NVD; ctlr++) { 999 vm = vdminfo[ctlr]; 1000 if (vm == 0 || vm->um_alive == 0) 1001 continue; 1002 vd = &vdsoftc[ctlr]; 1003 s = spl7(); 1004 if (vm->um_tab.b_active && vd->vd_wticks++ >= VDMAXTIME) { 1005 printf("vd%d: lost interrupt\n", ctlr); 1006 #ifdef maybe 1007 VDABORT((struct vddevice *)vm->um_addr, vd->vd_type); 1008 #endif 1009 vdintr(ctlr); 1010 } 1011 splx(s); 1012 } 1013 } 1014 1015 #define DBSIZE 64 /* controller limit with 1K sectors */ 1016 /* 1017 * Crash dump. 1018 */ 1019 vddump(dev) 1020 dev_t dev; 1021 { 1022 register struct vba_device *vi; 1023 register struct vba_ctlr *vm; 1024 register struct disklabel *lp; 1025 register struct vdsoftc *vd; 1026 struct dksoftc *dk; 1027 int part, unit, num; 1028 u_long start; 1029 1030 start = 0; 1031 unit = vdunit(dev); 1032 if (unit > NDK || (vi = vddinfo[unit]) == 0 || vi->ui_alive == 0) 1033 return (ENXIO); 1034 dk = &dksoftc[unit]; 1035 if (dk->dk_state != OPEN && dk->dk_state != OPENRAW && 1036 vdinit(vdminor(unit, 0), 0) != 0) 1037 return (ENXIO); 1038 lp = &dklabel[unit]; 1039 part = vdpart(dev); 1040 if (part >= lp->d_npartitions) 1041 return (ENXIO); 1042 vm = vi->ui_mi; 1043 vdreset_ctlr(vm); 1044 if (dumplo < 0) 1045 return (EINVAL); 1046 /* 1047 * Maxfree is in pages, dumplo is in DEV_BSIZE units. 1048 */ 1049 num = maxfree * (NBPG / lp->d_secsize); 1050 dumplo *= DEV_BSIZE / lp->d_secsize; 1051 if (dumplo + num >= lp->d_partitions[vdpart(dev)].p_size) 1052 num = lp->d_partitions[vdpart(dev)].p_size - dumplo; 1053 vd = &vdsoftc[vm->um_ctlr]; 1054 vd->vd_dcb.intflg = DCBINT_NONE; 1055 vd->vd_dcb.opcode = VDOP_WD; 1056 vd->vd_dcb.devselect = dk->dk_dcb.devselect; 1057 vd->vd_dcb.trailcnt = sizeof (struct trrw) / sizeof (long); 1058 while (num > 0) { 1059 int nsec, cn, sn, tn; 1060 1061 nsec = MIN(num, DBSIZE); 1062 sn = dumplo + start / lp->d_secsize; 1063 cn = (sn + lp->d_partitions[vdpart(dev)].p_offset) / 1064 lp->d_secpercyl; 1065 sn %= lp->d_secpercyl; 1066 tn = sn / lp->d_nsectors; 1067 sn %= lp->d_nsectors; 1068 vd->vd_mdcb.mdcb_head = (struct dcb *)vd->vd_dcbphys; 1069 vd->vd_dcb.trail.rwtrail.memadr = start; 1070 vd->vd_dcb.trail.rwtrail.wcount = (nsec * lp->d_secsize) >> 1; 1071 vd->vd_dcb.trail.rwtrail.disk.cylinder = cn; 1072 vd->vd_dcb.trail.rwtrail.disk.track = tn; 1073 vd->vd_dcb.trail.rwtrail.disk.sector = sn; 1074 vd->vd_dcb.operrsta = 0; 1075 VDGO(vm->um_addr, vd->vd_mdcbphys, vd->vd_type); 1076 if (!vdpoll(vm, 5)) { 1077 printf(" during dump\n"); 1078 return (EIO); 1079 } 1080 if (vd->vd_dcb.operrsta & VDERR_HARD) { 1081 printf("dk%d: hard error, status=%b\n", unit, 1082 vd->vd_dcb.operrsta, VDERRBITS); 1083 return (EIO); 1084 } 1085 start += nsec * lp->d_secsize; 1086 num -= nsec; 1087 } 1088 return (0); 1089 } 1090 1091 vdsize(dev) 1092 dev_t dev; 1093 { 1094 register int unit = vdunit(dev); 1095 register struct dksoftc *dk; 1096 struct vba_device *vi; 1097 struct disklabel *lp; 1098 1099 if (unit >= NDK || (vi = vddinfo[unit]) == 0 || vi->ui_alive == 0 || 1100 (dk = &dksoftc[unit])->dk_state != OPEN) 1101 return (-1); 1102 lp = &dklabel[unit]; 1103 #ifdef SECSIZE 1104 return ((int)lp->d_partitions[vdpart(dev)].p_size); 1105 #else SECSIZE 1106 return ((int)lp->d_partitions[vdpart(dev)].p_size >> dk->dk_bshift); 1107 #endif SECSIZE 1108 } 1109 1110 /* 1111 * Perform a controller reset. 1112 */ 1113 vdreset_ctlr(vm) 1114 register struct vba_ctlr *vm; 1115 { 1116 register struct vddevice *vdaddr = (struct vddevice *)vm->um_addr; 1117 register struct vdsoftc *vd = &vdsoftc[vm->um_ctlr]; 1118 register int unit; 1119 struct vba_device *vi; 1120 1121 VDRESET(vdaddr, vd->vd_type); 1122 if (vd->vd_type == VDTYPE_SMDE) { 1123 vdaddr->vdcsr = 0; 1124 vdaddr->vdtcf_mdcb = AM_ENPDA; 1125 vdaddr->vdtcf_dcb = AM_ENPDA; 1126 vdaddr->vdtcf_trail = AM_ENPDA; 1127 vdaddr->vdtcf_data = AM_ENPDA; 1128 vdaddr->vdccf = CCF_STS | XMD_32BIT | BSZ_16WRD | 1129 CCF_ENP | CCF_EPE | CCF_EDE | CCF_ECE | CCF_ERR; 1130 } 1131 if (!vdcmd(vm, VDOP_INIT, 10) || !vdcmd(vm, VDOP_DIAG, 10)) { 1132 printf("%s cmd failed\n", 1133 vd->vd_dcb.opcode == VDOP_INIT ? "init" : "diag"); 1134 return; 1135 } 1136 for (unit = 0; unit < NDK; unit++) 1137 if ((vi = vddinfo[unit])->ui_mi == vm && vi->ui_alive) 1138 (void) vdreset_drive(vi); 1139 } 1140 1141 vdreset_drive(vi) 1142 register struct vba_device *vi; 1143 { 1144 register struct disklabel *lp = &dklabel[vi->ui_unit]; 1145 struct vba_ctlr *vm = vdminfo[vi->ui_ctlr]; 1146 struct vddevice *vdaddr = (struct vddevice *)vm->um_addr; 1147 register struct vdsoftc *vd = &vdsoftc[vi->ui_ctlr]; 1148 register struct dksoftc *dk = &dksoftc[vi->ui_unit]; 1149 1150 top: 1151 vd->vd_dcb.opcode = VDOP_CONFIG; /* command */ 1152 vd->vd_dcb.intflg = DCBINT_NONE; 1153 vd->vd_dcb.nxtdcb = (struct dcb *)0; /* end of chain */ 1154 vd->vd_dcb.operrsta = 0; 1155 vd->vd_dcb.devselect = vi->ui_slave | lp->d_devflags; 1156 vd->vd_dcb.trail.rstrail.ncyl = lp->d_ncylinders; 1157 vd->vd_dcb.trail.rstrail.nsurfaces = lp->d_ntracks; 1158 if (vd->vd_type == VDTYPE_SMDE) { 1159 vd->vd_dcb.trailcnt = sizeof (struct treset) / sizeof (long); 1160 vd->vd_dcb.trail.rstrail.nsectors = lp->d_nsectors; 1161 vd->vd_dcb.trail.rstrail.slip_sec = lp->d_sparespertrack; 1162 vd->vd_dcb.trail.rstrail.recovery = VDRF_NORMAL; 1163 } else 1164 vd->vd_dcb.trailcnt = 2; /* XXX */ 1165 vd->vd_mdcb.mdcb_head = (struct dcb *)vd->vd_dcbphys; 1166 vd->vd_mdcb.mdcb_status = 0; 1167 VDGO(vdaddr, vd->vd_mdcbphys, vd->vd_type); 1168 if (!vdpoll(vm, 5)) { 1169 printf(" during config\n"); 1170 return (0); 1171 } 1172 if (vd->vd_dcb.operrsta & VDERR_HARD) { 1173 if (vd->vd_type == VDTYPE_SMDE) { 1174 if (lp->d_devflags == 0) { 1175 lp->d_devflags = VD_ESDI; 1176 goto top; 1177 } 1178 #ifdef notdef 1179 /* this doesn't work, STA_US isn't set(?) */ 1180 if ((vdaddr->vdstatus[vi->ui_slave] & STA_US) == 0) 1181 return (0); 1182 #endif 1183 } 1184 if ((vd->vd_dcb.operrsta & (DCBS_OCYL|DCBS_NRDY)) == 0) 1185 printf("dk%d: config error %b ecode %x\n", vi->ui_unit, 1186 vd->vd_dcb.operrsta, VDERRBITS, 1187 (u_char) vd->vd_dcb.err_code); 1188 else if ((vd->vd_flags & VD_STARTED) == 0) { 1189 int started; 1190 1191 printf(" starting drives, wait ... "); 1192 vd->vd_flags |= VD_STARTED; 1193 started = (vdcmd(vm, VDOP_START, 10) == 1); 1194 DELAY(62000000); 1195 printf("done"); 1196 lp->d_devflags = 0; 1197 if (started) 1198 goto top; 1199 } 1200 return (0); 1201 } 1202 dk->dk_dcb.devselect |= lp->d_devflags; 1203 return (1); 1204 } 1205 1206 /* 1207 * Perform a command w/o trailer. 1208 */ 1209 vdcmd(vm, cmd, t) 1210 register struct vba_ctlr *vm; 1211 { 1212 register struct vdsoftc *vd = &vdsoftc[vm->um_ctlr]; 1213 1214 vd->vd_dcb.opcode = cmd; /* command */ 1215 vd->vd_dcb.intflg = DCBINT_NONE; 1216 vd->vd_dcb.nxtdcb = (struct dcb *)0; /* end of chain */ 1217 vd->vd_dcb.operrsta = 0; 1218 vd->vd_dcb.devselect = 0; 1219 vd->vd_dcb.trailcnt = 0; 1220 vd->vd_mdcb.mdcb_head = (struct dcb *)vd->vd_dcbphys; 1221 vd->vd_mdcb.mdcb_status = 0; 1222 VDGO(vm->um_addr, vd->vd_mdcbphys, vd->vd_type); 1223 if (!vdpoll(vm, t)) { 1224 printf(" during init\n"); 1225 return (0); 1226 } 1227 return ((vd->vd_dcb.operrsta&VDERR_HARD) == 0); 1228 } 1229 1230 /* 1231 * Poll controller until operation 1232 * completes or timeout expires. 1233 */ 1234 vdpoll(vm, t) 1235 register struct vba_ctlr *vm; 1236 register int t; 1237 { 1238 register struct vdsoftc *vd = &vdsoftc[vm->um_ctlr]; 1239 register struct vddevice *vdaddr = (struct vddevice *)vm->um_addr; 1240 1241 t *= 1000; 1242 for (;;) { 1243 uncache(&vd->vd_dcb.operrsta); 1244 if (vd->vd_dcb.operrsta & (DCBS_DONE|DCBS_ABORT)) 1245 break; 1246 if (--t <= 0) { 1247 printf("vd%d: controller timeout", vm->um_ctlr); 1248 VDABORT(vdaddr, vd->vd_type); 1249 return (0); 1250 } 1251 DELAY(1000); 1252 } 1253 if (vd->vd_type == VDTYPE_SMDE) { 1254 do { 1255 DELAY(50); 1256 uncache(&vdaddr->vdcsr); 1257 } while (vdaddr->vdcsr & CS_GO); 1258 DELAY(300); 1259 uncache(&vd->vd_dcb.err_code); 1260 } 1261 DELAY(200); 1262 uncache(&vd->vd_dcb.operrsta); 1263 return (1); 1264 } 1265 1266 #ifdef COMPAT_42 1267 struct vdst { 1268 int nsec; /* sectors/track */ 1269 int ntrack; /* tracks/cylinder */ 1270 int ncyl; /* cylinders */ 1271 int secsize; /* sector size */ 1272 char *name; /* type name */ 1273 struct { 1274 int off; /* partition offset in sectors */ 1275 int size; /* partition size in sectors */ 1276 } parts[8]; 1277 } vdst[] = { 1278 { 66, 23, 850, 512, "NEC 800", 1279 {0, 1290300}, /* a cyl 0 - 849 */ 1280 }, 1281 { 48, 24, 711, 512, "xsd", 1282 {0, 61056}, /* a cyl 0 - 52 */ 1283 {61056, 61056}, /* b cyl 53 - 105 */ 1284 {122112, 691200}, /* c cyl 106 - 705 */ 1285 {237312, 576000}, /* d cyl 206 - 705 */ 1286 {352512, 460800}, /* e cyl 306 - 705 */ 1287 {467712, 345600}, /* f cyl 406 - 705 */ 1288 {582912, 230400}, /* g cyl 506 - 705 */ 1289 {698112, 115200} /* h cyl 606 - 705 */ 1290 }, 1291 { 44, 20, 842, 512, "eagle", 1292 {0, 52800}, /* egl0a cyl 0 - 59 */ 1293 {52800, 66000}, /* egl0b cyl 60 - 134 */ 1294 {118800, 617760}, /* egl0c cyl 135 - 836 */ 1295 {736560, 4400}, /* egl0d cyl 837 - 841 */ 1296 {0, 736560}, /* egl0e cyl 0 - 836 */ 1297 {0, 740960}, /* egl0f cyl 0 - 841 */ 1298 {118800, 310640}, /* egl0g cyl 135 - 487 */ 1299 {429440, 307120} /* egl0h cyl 488 - 836 */ 1300 }, 1301 { 64, 10, 823, 512, "fuj", 1302 {0, 38400}, /* fuj0a cyl 0 - 59 */ 1303 {38400, 48000}, /* fuj0b cyl 60 - 134 */ 1304 {86400, 437120}, /* fuj0c cyl 135 - 817 */ 1305 {159360, 364160}, /* fuj0d cyl 249 - 817 */ 1306 {232320, 291200}, /* fuj0e cyl 363 - 817 */ 1307 {305280, 218240}, /* fuj0f cyl 477 - 817 */ 1308 {378240, 145280}, /* fuj0g cyl 591 - 817 */ 1309 {451200, 72320} /* fug0h cyl 705 - 817 */ 1310 }, 1311 { 32, 24, 711, 512, "xfd", 1312 { 0, 40704 }, /* a cyl 0 - 52 */ 1313 { 40704, 40704 }, /* b cyl 53 - 105 */ 1314 { 81408, 460800 }, /* c cyl 106 - 705 */ 1315 { 0, 81408 }, /* d cyl 709 - 710 (a & b) */ 1316 { 0, 542208 }, /* e cyl 0 - 705 */ 1317 { 40704, 501504 }, /* f cyl 53 - 705 (b & c) */ 1318 { 81408, 230400 }, /* g cyl 106 - 405 (1/2 of c) */ 1319 { 311808,230400 } /* h cyl 406 - 705 (1/2 of c) */ 1320 }, 1321 { 32, 19, 823, 512, "smd", 1322 {0, 40128}, /* a cyl 0-65 */ 1323 {40128, 27360}, /* b cyl 66-110 */ 1324 {67488, 429856}, /* c cyl 111-817 */ 1325 {139232, 358112}, /* d cyl 229 - 817 */ 1326 {210976, 286368}, /* e cyl 347 - 817 */ 1327 {282720, 214624}, /* f cyl 465 - 817 */ 1328 {354464, 142880}, /* g cyl 583 - 817 */ 1329 {426208, 71136} /* h cyl 701 - 817 */ 1330 }, 1331 { 18, 15, 1224, 1024, "mxd", 1332 {0, 21600}, /* a cyl 0-79 */ 1333 {21600, 22410}, /* b cyl 80-162 */ 1334 {44010, 285120}, /* c cyl 163-1217 */ 1335 #ifdef notyet 1336 {x, 237600}, /* d cyl y - 1217 */ 1337 {x, 190080}, /* e cyl y - 1217 */ 1338 {x, 142560}, /* f cyl y - 1217 */ 1339 {x, 95040}, /* g cyl y - 1217 */ 1340 {x, 47520} /* h cyl 701 - 817 */ 1341 #endif 1342 }, 1343 { 32, 10, 823, 512, "fsd", 1344 {0, 19200}, /* a cyl 0 - 59 */ 1345 {19200, 24000}, /* b cyl 60 - 134 */ 1346 {43200, 218560}, /* c cyl 135 - 817 */ 1347 } 1348 }; 1349 #define NVDST (sizeof (vdst) / sizeof (vdst[0])) 1350 1351 /* 1352 * Construct a label for an unlabeled pack. We 1353 * deduce the drive type by reading from the last 1354 * track on successively smaller drives until we 1355 * don't get an error. 1356 */ 1357 vdmaptype(vi, lp) 1358 register struct vba_device *vi; 1359 register struct disklabel *lp; 1360 { 1361 register struct vdsoftc *vd; 1362 register struct vdst *p; 1363 struct vba_ctlr *vm = vi->ui_mi; 1364 int i; 1365 1366 vd = &vdsoftc[vi->ui_ctlr]; 1367 for (p = vdst; p < &vdst[NVDST]; p++) { 1368 if (vd->vd_type == VDTYPE_VDDC && p->nsec != 32) 1369 continue; 1370 lp->d_nsectors = p->nsec; 1371 lp->d_ntracks = p->ntrack; 1372 lp->d_ncylinders = p->ncyl; 1373 lp->d_secsize = p->secsize; 1374 if (!vdreset_drive(vi)) 1375 return (0); 1376 vd->vd_dcb.opcode = VDOP_RD; 1377 vd->vd_dcb.intflg = DCBINT_NONE; 1378 vd->vd_dcb.nxtdcb = (struct dcb *)0; /* end of chain */ 1379 vd->vd_dcb.devselect = dksoftc[vi->ui_unit].dk_dcb.devselect; 1380 vd->vd_dcb.trailcnt = sizeof (struct trrw) / sizeof (long); 1381 vd->vd_dcb.trail.rwtrail.memadr = 1382 vtoph((struct proc *)0, (unsigned)vd->vd_rbuf.vb_rawbuf); 1383 vd->vd_dcb.trail.rwtrail.wcount = lp->d_secsize / sizeof(short); 1384 vd->vd_dcb.operrsta = 0; 1385 vd->vd_dcb.trail.rwtrail.disk.cylinder = p->ncyl - 2; 1386 vd->vd_dcb.trail.rwtrail.disk.track = p->ntrack - 1; 1387 vd->vd_dcb.trail.rwtrail.disk.sector = p->nsec - 1; 1388 vd->vd_mdcb.mdcb_head = (struct dcb *)vd->vd_dcbphys; 1389 vd->vd_mdcb.mdcb_status = 0; 1390 VDGO(vm->um_addr, vd->vd_mdcbphys, vd->vd_type); 1391 if (!vdpoll(vm, 60)) 1392 printf(" during probe\n"); 1393 if ((vd->vd_dcb.operrsta & VDERR_HARD) == 0) 1394 break; 1395 } 1396 if (p >= &vdst[NVDST]) 1397 return (0); 1398 1399 for (i = 0; i < 8; i++) { 1400 lp->d_partitions[i].p_offset = p->parts[i].off; 1401 lp->d_partitions[i].p_size = p->parts[i].size; 1402 } 1403 lp->d_npartitions = 8; 1404 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 1405 lp->d_rpm = 3600; 1406 bcopy(p->name, lp->d_typename, 4); 1407 return (1); 1408 } 1409 #endif COMPAT_42 1410 #endif 1411