1 /* vd.c 1.20 87/09/17 */ 2 3 #include "dk.h" 4 #if NVD > 0 5 /* 6 * Versabus VDDC/SMDE driver. 7 */ 8 #include "param.h" 9 #include "buf.h" 10 #include "cmap.h" 11 #include "conf.h" 12 #include "dir.h" 13 #include "dkstat.h" 14 #include "disklabel.h" 15 #include "map.h" 16 #include "file.h" 17 #include "systm.h" 18 #include "user.h" 19 #include "vmmac.h" 20 #include "proc.h" 21 #include "uio.h" 22 #include "syslog.h" 23 #include "kernel.h" 24 #include "ioctl.h" 25 #include "stat.h" 26 27 #include "../tahoe/cpu.h" 28 #include "../tahoe/mtpr.h" 29 #include "../tahoe/pte.h" 30 31 #include "../tahoevba/vbavar.h" 32 #include "../tahoevba/vdreg.h" 33 34 #ifndef COMPAT_42 35 #define COMPAT_42 36 #endif 37 38 #define vdunit(dev) (minor(dev) >> 3) 39 #define vdpart(dev) (minor(dev) & 0x07) 40 #define vdminor(unit,part) (((unit) << 3) | (part)) 41 42 struct vba_ctlr *vdminfo[NVD]; 43 struct vba_device *vddinfo[NDK]; 44 int vdprobe(), vdslave(), vdattach(), vddgo(), vdstrategy(); 45 long vdaddr[] = { 0xffff2000, 0xffff2100, 0xffff2200, 0xffff2300, 0 }; 46 struct vba_driver vddriver = 47 { vdprobe, vdslave, vdattach, vddgo, vdaddr, "dk", vddinfo, "vd", vdminfo }; 48 49 /* 50 * Per-controller state. 51 */ 52 struct vdsoftc { 53 u_short vd_flags; 54 #define VD_INIT 0x1 /* controller initialized */ 55 #define VD_STARTED 0x2 /* start command issued */ 56 #define VD_DOSEEKS 0x4 /* should overlap seeks */ 57 #define VD_SCATGATH 0x8 /* can do scatter-gather commands (correctly) */ 58 u_short vd_type; /* controller type */ 59 u_short vd_wticks; /* timeout */ 60 struct mdcb vd_mdcb; /* master command block */ 61 u_long vd_mdcbphys; /* physical address of vd_mdcb */ 62 struct dcb vd_dcb; /* i/o command block */ 63 u_long vd_dcbphys; /* physical address of vd_dcb */ 64 struct vb_buf vd_rbuf; /* vba resources */ 65 } vdsoftc[NVD]; 66 67 /* 68 * Per-drive state. 69 */ 70 struct dksoftc { 71 u_short dk_state; /* open fsm */ 72 u_short dk_copenpart; /* character units open on this drive */ 73 u_short dk_bopenpart; /* block units open on this drive */ 74 u_short dk_openpart; /* all units open on this drive */ 75 #ifndef SECSIZE 76 u_short dk_bshift; /* shift for * (DEV_BSIZE / sectorsize) XXX */ 77 #endif SECSIZE 78 u_int dk_curcyl; /* last selected cylinder */ 79 struct skdcb dk_dcb; /* seek command block */ 80 u_long dk_dcbphys; /* physical address of dk_dcb */ 81 } dksoftc[NDK]; 82 83 /* 84 * Drive states. Used during steps of open/initialization. 85 * States < OPEN (> 0) are transient, during an open operation. 86 * OPENRAW is used for unabeled disks, to allow format operations. 87 */ 88 #define CLOSED 0 /* disk is closed */ 89 #define WANTOPEN 1 /* open requested, not started */ 90 #define WANTOPENRAW 2 /* open requested, no label */ 91 #define RDLABEL 3 /* reading pack label */ 92 #define OPEN 4 /* intialized and ready */ 93 #define OPENRAW 5 /* open, no label */ 94 95 struct buf rdkbuf[NDK]; /* raw i/o buffer headers */ 96 struct buf dkutab[NDK]; /* i/o queue headers */ 97 struct disklabel dklabel[NDK]; /* pack labels */ 98 99 #define b_cylin b_resid 100 #define b_track b_error /* used for seek commands */ 101 #define b_seekf b_forw /* second queue on um_tab */ 102 #define b_seekl b_back /* second queue on um_tab */ 103 104 int vdwstart, vdwatch(); 105 106 /* 107 * See if the controller is really there; if so, initialize it. 108 */ 109 vdprobe(reg, vm) 110 caddr_t reg; 111 struct vba_ctlr *vm; 112 { 113 register br, cvec; /* must be r12, r11 */ 114 register struct vddevice *vdaddr = (struct vddevice *)reg; 115 struct vdsoftc *vd; 116 int s; 117 118 #ifdef lint 119 br = 0; cvec = br; br = cvec; 120 vdintr(0); 121 #endif 122 if (badaddr((caddr_t)reg, 2)) 123 return (0); 124 vd = &vdsoftc[vm->um_ctlr]; 125 vdaddr->vdreset = 0xffffffff; 126 DELAY(1000000); 127 if (vdaddr->vdreset != (unsigned)0xffffffff) { 128 vd->vd_type = VDTYPE_VDDC; 129 vd->vd_flags &= ~VD_DOSEEKS; 130 DELAY(1000000); 131 } else { 132 vd->vd_type = VDTYPE_SMDE; 133 vd->vd_flags |= VD_DOSEEKS; 134 vdaddr->vdrstclr = 0; 135 DELAY(3000000); 136 vdaddr->vdcsr = 0; 137 vdaddr->vdtcf_mdcb = AM_ENPDA; 138 vdaddr->vdtcf_dcb = AM_ENPDA; 139 vdaddr->vdtcf_trail = AM_ENPDA; 140 vdaddr->vdtcf_data = AM_ENPDA; 141 vdaddr->vdccf = CCF_SEN | CCF_DER | CCF_STS | 142 XMD_32BIT | BSZ_16WRD | 143 CCF_ENP | CCF_EPE | CCF_EDE | CCF_ECE | CCF_ERR; 144 } 145 vd->vd_mdcbphys = vtoph((struct proc *)0, (unsigned)&vd->vd_mdcb); 146 vd->vd_dcbphys = vtoph((struct proc *)0, (unsigned)&vd->vd_dcb); 147 vm->um_addr = reg; /* XXX */ 148 s = spl7(); 149 if (!vdcmd(vm, VDOP_INIT, 10) || !vdcmd(vm, VDOP_DIAG, 10)) { 150 printf("vd%d: %s cmd failed\n", vm->um_ctlr, 151 vd->vd_dcb.opcode == VDOP_INIT ? "init" : "diag"); 152 splx(s); 153 return (0); 154 } 155 if (vd->vd_type == VDTYPE_SMDE) { 156 vd->vd_dcb.trail.idtrail.date = 0; 157 if (vdcmd(vm, VDOP_IDENT, 10)) { 158 uncache(&vd->vd_dcb.trail.idtrail.date); 159 if (vd->vd_dcb.trail.idtrail.date != 0) 160 vd->vd_flags |= VD_SCATGATH; 161 } 162 } 163 splx(s); 164 /* 165 * Allocate page tables and i/o buffer. 166 */ 167 if (vbainit(&vd->vd_rbuf, MAXPHYS, 168 vd->vd_type == VDTYPE_VDDC ? VB_24BIT : VB_32BIT) == 0) { 169 printf("vd%d: vbainit failed\n", vm->um_ctlr); 170 return (0); 171 } 172 br = 0x17, cvec = 0xe0 + vm->um_ctlr; /* XXX */ 173 return (sizeof (struct vddevice)); 174 } 175 176 /* 177 * See if a drive is really there. 178 * 179 * Can't read pack label here as various data structures 180 * aren't setup for doing a read in a straightforward 181 * manner. Instead just probe for the drive and leave 182 * the pack label stuff to the attach routine. 183 */ 184 vdslave(vi, addr) 185 register struct vba_device *vi; 186 struct vddevice *vdaddr; 187 { 188 register struct disklabel *lp = &dklabel[vi->ui_unit]; 189 register struct dksoftc *dk = &dksoftc[vi->ui_unit]; 190 struct vdsoftc *vd = &vdsoftc[vi->ui_ctlr]; 191 192 if ((vd->vd_flags&VD_INIT) == 0) { 193 printf("vd%d: %s controller%s\n", vi->ui_ctlr, 194 vd->vd_type == VDTYPE_VDDC ? "VDDC" : "SMDE", 195 (vd->vd_flags & VD_SCATGATH) ? " with scatter-gather" : ""); 196 vd->vd_flags |= VD_INIT; 197 } 198 199 /* 200 * Initialize label enough to do a reset on 201 * the drive. The remainder of the default 202 * label values will be filled in in vdinit 203 * at attach time. 204 */ 205 if (vd->vd_type == VDTYPE_SMDE) 206 lp->d_secsize = VD_MAXSECSIZE; 207 else 208 lp->d_secsize = VDDC_SECSIZE; 209 lp->d_nsectors = 72; /* only used on smd-e */ 210 lp->d_ntracks = 24; 211 lp->d_ncylinders = 842; 212 lp->d_secpercyl = 72*24; 213 214 /* 215 * Initialize invariant portion of 216 * dcb used for overlapped seeks. 217 */ 218 dk->dk_dcb.opcode = VDOP_SEEK; 219 dk->dk_dcb.intflg = DCBINT_NONE | DCBINT_PBA; 220 dk->dk_dcb.devselect = vi->ui_slave; 221 dk->dk_dcb.trailcnt = sizeof (struct trseek) / sizeof (long); 222 dk->dk_dcb.trail.sktrail.skaddr.sector = 0; 223 dk->dk_dcbphys = vtoph((struct proc *)0, (unsigned)&dk->dk_dcb); 224 #ifndef SECSIZE 225 vd_setsecsize(dk, lp); 226 #endif 227 return (vdreset_drive(vi)); 228 } 229 230 vdattach(vi) 231 register struct vba_device *vi; 232 { 233 register int unit = vi->ui_unit; 234 register struct disklabel *lp = &dklabel[unit]; 235 236 /* 237 * Try to initialize device and read pack label. 238 */ 239 if (vdinit(vdminor(unit, 0), 0) != 0) { 240 printf(": unknown drive type"); 241 return; 242 } 243 if (dksoftc[unit].dk_state == OPEN) 244 printf(": %s <secsize %d, ntrak %d, ncyl %d, nsec %d>", 245 lp->d_typename, lp->d_secsize, 246 lp->d_ntracks, lp->d_ncylinders, lp->d_nsectors); 247 /* 248 * (60 / rpm) / (sectors per track * (bytes per sector / 2)) 249 */ 250 if (vi->ui_dk >= 0) 251 dk_mspw[vi->ui_dk] = 120.0 / 252 (lp->d_rpm * lp->d_nsectors * lp->d_secsize); 253 #ifdef notyet 254 addswap(makedev(VDMAJOR, vdminor(unit, 0)), lp); 255 #endif 256 } 257 258 vdopen(dev, flags, fmt) 259 dev_t dev; 260 int flags, fmt; 261 { 262 register unit = vdunit(dev); 263 register struct disklabel *lp; 264 register struct dksoftc *dk; 265 register struct partition *pp; 266 struct vba_device *vi; 267 int s, error, part = vdpart(dev), mask = 1 << part; 268 daddr_t start, end; 269 270 if (unit >= NDK || (vi = vddinfo[unit]) == 0 || vi->ui_alive == 0) 271 return (ENXIO); 272 lp = &dklabel[unit]; 273 dk = &dksoftc[unit]; 274 275 s = spl7(); 276 while (dk->dk_state != OPEN && dk->dk_state != OPENRAW && 277 dk->dk_state != CLOSED) 278 sleep((caddr_t)dk, PZERO+1); 279 splx(s); 280 if (dk->dk_state != OPEN && dk->dk_state != OPENRAW) 281 if (error = vdinit(dev, flags)) 282 return (error); 283 284 if (vdwstart == 0) { 285 timeout(vdwatch, (caddr_t)0, hz); 286 vdwstart++; 287 } 288 /* 289 * Warn if a partion is opened 290 * that overlaps another partition which is open 291 * unless one is the "raw" partition (whole disk). 292 */ 293 #define RAWPART 8 /* 'x' partition */ /* XXX */ 294 if ((dk->dk_openpart & (1 << part)) == 0 && 295 part != RAWPART) { 296 pp = &lp->d_partitions[part]; 297 start = pp->p_offset; 298 end = pp->p_offset + pp->p_size; 299 for (pp = lp->d_partitions; 300 pp < &lp->d_partitions[lp->d_npartitions]; pp++) { 301 if (pp->p_offset + pp->p_size <= start || 302 pp->p_offset >= end) 303 continue; 304 if (pp - lp->d_partitions == RAWPART) 305 continue; 306 if (dk->dk_openpart & (1 << (pp - lp->d_partitions))) 307 log(LOG_WARNING, 308 "dk%d%c: overlaps open partition (%c)\n", 309 unit, part + 'a', 310 pp - lp->d_partitions + 'a'); 311 } 312 } 313 if (part >= lp->d_npartitions) 314 return (ENXIO); 315 dk->dk_openpart |= mask; 316 switch (fmt) { 317 case S_IFCHR: 318 dk->dk_copenpart |= mask; 319 break; 320 case S_IFBLK: 321 dk->dk_bopenpart |= mask; 322 break; 323 } 324 return (0); 325 } 326 327 vdclose(dev, flags, fmt) 328 dev_t dev; 329 int flags, fmt; 330 { 331 register int unit = vdunit(dev); 332 register struct dksoftc *dk = &dksoftc[unit]; 333 int part = vdpart(dev), mask = 1 << part; 334 335 switch (fmt) { 336 case S_IFCHR: 337 dk->dk_copenpart &= ~mask; 338 break; 339 case S_IFBLK: 340 dk->dk_bopenpart &= ~mask; 341 break; 342 } 343 if (((dk->dk_copenpart | dk->dk_bopenpart) & mask) == 0) 344 dk->dk_openpart &= ~mask; 345 /* 346 * Should wait for i/o to complete on this partition 347 * even if others are open, but wait for work on blkflush(). 348 */ 349 if (dk->dk_openpart == 0) { 350 int s = spl7(); 351 while (dkutab[unit].b_actf) 352 sleep((caddr_t)dk, PZERO-1); 353 splx(s); 354 dk->dk_state = CLOSED; 355 } 356 return (0); 357 } 358 359 vdinit(dev, flags) 360 dev_t dev; 361 int flags; 362 { 363 register struct disklabel *lp; 364 register struct dksoftc *dk; 365 struct vba_device *vi; 366 int unit = vdunit(dev), error = 0; 367 char *msg, *readdisklabel(); 368 extern int cold; 369 370 dk = &dksoftc[unit]; 371 if (flags & O_NDELAY) { 372 dk->dk_state = OPENRAW; 373 return; 374 } 375 dk->dk_state = RDLABEL; 376 lp = &dklabel[unit]; 377 vi = vddinfo[unit]; 378 if (msg = readdisklabel(dev, vdstrategy, lp)) { 379 if (cold) 380 printf(": %s", msg); 381 else 382 log(LOG_ERR, "dk%d: %s\n", unit, msg); 383 #ifdef COMPAT_42 384 if (!vdmaptype(vi, lp)) 385 dk->dk_state = OPENRAW; 386 else 387 dk->dk_state = OPEN; 388 #else 389 dk->dk_state = OPENRAW; 390 #endif 391 } else { 392 /* 393 * Now that we have the label, configure 394 * the correct drive parameters. 395 */ 396 if (vdreset_drive(vi)) 397 dk->dk_state = OPEN; 398 else { 399 dk->dk_state = CLOSED; 400 error = ENXIO; 401 } 402 } 403 #ifndef SECSIZE 404 vd_setsecsize(dk, lp); 405 #endif 406 wakeup((caddr_t)dk); 407 return (error); 408 } 409 410 #ifndef SECSIZE 411 vd_setsecsize(dk, lp) 412 register struct dksoftc *dk; 413 register struct disklabel *lp; 414 { 415 int mul; 416 417 /* 418 * Calculate scaling shift for mapping 419 * DEV_BSIZE blocks to drive sectors. 420 */ 421 mul = DEV_BSIZE / lp->d_secsize; 422 dk->dk_bshift = 0; 423 while ((mul >>= 1) > 0) 424 dk->dk_bshift++; 425 } 426 #endif SECSIZE 427 428 /*ARGSUSED*/ 429 vddgo(vm) 430 struct vba_device *vm; 431 { 432 433 } 434 435 vdstrategy(bp) 436 register struct buf *bp; 437 { 438 register struct vba_device *vi; 439 register struct disklabel *lp; 440 register struct dksoftc *dk; 441 register int unit; 442 register daddr_t sn; 443 struct buf *dp; 444 daddr_t sz, maxsz; 445 int part, s; 446 447 unit = vdunit(bp->b_dev); 448 if (unit >= NDK) { 449 bp->b_error = ENXIO; 450 goto bad; 451 } 452 vi = vddinfo[unit]; 453 lp = &dklabel[unit]; 454 if (vi == 0 || vi->ui_alive == 0) { 455 bp->b_error = ENXIO; 456 goto bad; 457 } 458 dk = &dksoftc[unit]; 459 if (dk->dk_state < OPEN) 460 goto q; 461 part = vdpart(bp->b_dev); 462 if ((dk->dk_openpart & (1 << part)) == 0) { 463 bp->b_error = ENODEV; 464 goto bad; 465 } 466 sz = (bp->b_bcount + lp->d_secsize - 1) / lp->d_secsize; 467 maxsz = lp->d_partitions[part].p_size; 468 #ifndef SECSIZE 469 sn = bp->b_blkno << dk->dk_bshift; 470 #else SECSIZE 471 sn = bp->b_blkno; 472 #endif SECSIZE 473 if (sn < 0 || sn + sz > maxsz) { 474 if (sn == maxsz) { 475 bp->b_resid = bp->b_bcount; 476 goto done; 477 } 478 sz = maxsz - sn; 479 if (sz <= 0) { 480 bp->b_error = EINVAL; 481 goto bad; 482 } 483 bp->b_bcount = sz * lp->d_secsize; 484 } 485 bp->b_cylin = (sn + lp->d_partitions[part].p_offset) / lp->d_secpercyl; 486 #ifdef SECSIZE 487 if (bp->b_blksize != lp->d_secsize && (bp->b_flags & B_PGIN) == 0) 488 panic("vdstrat blksize"); 489 #endif SECSIZE 490 q: 491 s = spl7(); 492 dp = &dkutab[vi->ui_unit]; 493 disksort(dp, bp); 494 if (!dp->b_active) { 495 (void) vdustart(vi); 496 if (!vi->ui_mi->um_tab.b_active) 497 vdstart(vi->ui_mi); 498 } 499 splx(s); 500 return; 501 bad: 502 bp->b_flags |= B_ERROR; 503 done: 504 biodone(bp); 505 return; 506 } 507 508 vdustart(vi) 509 register struct vba_device *vi; 510 { 511 register struct buf *bp, *dp; 512 register struct vba_ctlr *vm; 513 register int unit = vi->ui_unit; 514 register struct dksoftc *dk; 515 register struct vdsoftc *vd; 516 struct disklabel *lp; 517 518 dp = &dkutab[unit]; 519 /* 520 * If queue empty, nothing to do. 521 */ 522 if ((bp = dp->b_actf) == NULL) 523 return; 524 /* 525 * If drive is off-cylinder and controller supports seeks, 526 * place drive on seek queue for controller. 527 * Otherwise, place on transfer queue. 528 */ 529 vd = &vdsoftc[vi->ui_ctlr]; 530 dk = &dksoftc[unit]; 531 vm = vi->ui_mi; 532 if (bp->b_cylin != dk->dk_curcyl && vd->vd_flags&VD_DOSEEKS) { 533 lp = &dklabel[unit]; 534 bp->b_track = (bp->b_blkno % lp->d_secpercyl) / lp->d_nsectors; 535 if (vm->um_tab.b_seekf == NULL) 536 vm->um_tab.b_seekf = dp; 537 else 538 vm->um_tab.b_seekl->b_forw = dp; 539 vm->um_tab.b_seekl = dp; 540 } else { 541 if (vm->um_tab.b_actf == NULL) 542 vm->um_tab.b_actf = dp; 543 else 544 vm->um_tab.b_actl->b_forw = dp; 545 vm->um_tab.b_actl = dp; 546 } 547 dp->b_forw = NULL; 548 dp->b_active++; 549 } 550 551 /* 552 * Start next transfer on a controller. 553 * There are two queues of drives, the first on-cylinder 554 * and the second off-cylinder from their next transfers. 555 * Perform the first transfer for the first drive on the on-cylinder 556 * queue, if any, otherwise the first transfer for the first drive 557 * on the second queue. Initiate seeks on remaining drives on the 558 * off-cylinder queue, then move them all to the on-cylinder queue. 559 */ 560 vdstart(vm) 561 register struct vba_ctlr *vm; 562 { 563 register struct buf *bp; 564 register struct vba_device *vi; 565 register struct vdsoftc *vd; 566 register struct dksoftc *dk; 567 register struct disklabel *lp; 568 register struct dcb **dcbp; 569 struct mdcb *mdcb; 570 struct buf *dp; 571 int sn, tn; 572 573 loop: 574 /* 575 * Pull a request off the controller queue. 576 */ 577 if ((dp = vm->um_tab.b_actf) == NULL && 578 (dp = vm->um_tab.b_seekf) == NULL) 579 return; 580 if ((bp = dp->b_actf) == NULL) { 581 if (dp == vm->um_tab.b_actf) 582 vm->um_tab.b_actf = dp->b_forw; 583 else 584 vm->um_tab.b_seekf = dp->b_forw; 585 goto loop; 586 } 587 588 /* 589 * Mark controller busy, and determine 590 * destination of this request. 591 */ 592 vm->um_tab.b_active++; 593 vi = vddinfo[vdunit(bp->b_dev)]; 594 dk = &dksoftc[vi->ui_unit]; 595 #ifndef SECSIZE 596 sn = bp->b_blkno << dk->dk_bshift; 597 #else SECSIZE 598 sn = bp->b_blkno; 599 #endif SECSIZE 600 lp = &dklabel[vi->ui_unit]; 601 sn %= lp->d_secpercyl; 602 tn = sn / lp->d_nsectors; 603 sn %= lp->d_nsectors; 604 605 /* 606 * Construct dcb for read/write command. 607 */ 608 vd = &vdsoftc[vm->um_ctlr]; 609 vd->vd_dcb.intflg = DCBINT_DONE; 610 vd->vd_dcb.devselect = dk->dk_dcb.devselect; 611 vd->vd_dcb.operrsta = 0; 612 vd->vd_dcb.nxtdcb = (struct dcb *)0; /* end of chain */ 613 vd->vd_dcb.trail.rwtrail.disk.cylinder = bp->b_cylin; 614 vd->vd_dcb.trail.rwtrail.disk.track = tn; 615 vd->vd_dcb.trail.rwtrail.disk.sector = sn; 616 dk->dk_curcyl = bp->b_cylin; 617 bp->b_track = 0; /* init overloaded field */ 618 vd->vd_dcb.trailcnt = sizeof (struct trrw) / sizeof (long); 619 if (vd->vd_flags & VD_SCATGATH && 620 ((int)bp->b_un.b_addr & (sizeof(long) - 1)) == 0) { 621 vd->vd_dcb.opcode = (bp->b_flags & B_READ)? VDOP_RAS : VDOP_GAW; 622 vd->vd_dcb.trailcnt += vba_sgsetup(bp, &vd->vd_rbuf, 623 &vd->vd_dcb.trail.sgtrail); 624 } else { 625 vd->vd_dcb.opcode = (bp->b_flags & B_READ)? VDOP_RD : VDOP_WD; 626 vd->vd_dcb.trail.rwtrail.memadr = 627 vbasetup(bp, &vd->vd_rbuf, lp->d_secsize); 628 vd->vd_dcb.trail.rwtrail.wcount = (bp->b_bcount+1) >> 1; 629 } 630 if (vi->ui_dk >= 0) { 631 dk_busy |= 1<<vi->ui_dk; 632 dk_xfer[vi->ui_dk]++; 633 dk_wds[vi->ui_dk] += bp->b_bcount>>6; 634 } 635 636 /* 637 * Look for any seeks to be performed on other drives on this 638 * controller. If overlapped seeks exist, insert seek commands 639 * on the controller's command queue before the transfer. 640 */ 641 dcbp = &vd->vd_mdcb.mdcb_head; 642 643 if (dp == vm->um_tab.b_seekf) 644 dp = dp->b_forw; 645 else 646 dp = vm->um_tab.b_seekf; 647 for (; dp != NULL; dp = dp->b_forw) { 648 if ((bp = dp->b_actf) == NULL) 649 continue; 650 vi = vddinfo[vdunit(bp->b_dev)]; 651 dk = &dksoftc[vi->ui_unit]; 652 dk->dk_curcyl = bp->b_cylin; 653 if (vi->ui_dk >= 0) 654 dk_seek[vi->ui_dk]++; 655 dk->dk_dcb.operrsta = 0; 656 dk->dk_dcb.trail.sktrail.skaddr.cylinder = bp->b_cylin; 657 dk->dk_dcb.trail.sktrail.skaddr.track = bp->b_track; 658 *dcbp = (struct dcb *)dk->dk_dcbphys; 659 dcbp = &dk->dk_dcb.nxtdcb; 660 } 661 *dcbp = (struct dcb *)vd->vd_dcbphys; 662 if (vm->um_tab.b_actf) 663 vm->um_tab.b_actl->b_forw = vm->um_tab.b_seekf; 664 else 665 vm->um_tab.b_actf = vm->um_tab.b_seekf; 666 if (vm->um_tab.b_seekf) 667 vm->um_tab.b_actl = vm->um_tab.b_seekl; 668 vm->um_tab.b_seekf = 0; 669 670 /* 671 * Initiate operation. 672 */ 673 vd->vd_mdcb.mdcb_status = 0; 674 VDGO(vm->um_addr, vd->vd_mdcbphys, vd->vd_type); 675 } 676 677 #define DONTCARE (DCBS_DSE|DCBS_DSL|DCBS_TOP|DCBS_TOM|DCBS_FAIL|DCBS_DONE) 678 /* 679 * Handle a disk interrupt. 680 */ 681 vdintr(ctlr) 682 register ctlr; 683 { 684 register struct buf *bp, *dp; 685 register struct vba_ctlr *vm = vdminfo[ctlr]; 686 register struct vba_device *vi; 687 register struct vdsoftc *vd = &vdsoftc[ctlr]; 688 register status; 689 int ecode; 690 struct dksoftc *dk; 691 692 vd->vd_wticks = 0; 693 if (!vm->um_tab.b_active) { 694 printf("vd%d: stray interrupt\n", ctlr); 695 return; 696 } 697 /* 698 * Get device and block structures, and a pointer 699 * to the vba_device for the drive. 700 */ 701 dp = vm->um_tab.b_actf; 702 bp = dp->b_actf; 703 vi = vddinfo[vdunit(bp->b_dev)]; 704 if (vi->ui_dk >= 0) 705 dk_busy &= ~(1<<vi->ui_dk); 706 /* 707 * Check for and process errors on 708 * either the drive or the controller. 709 */ 710 uncache(&vd->vd_dcb.operrsta); 711 status = vd->vd_dcb.operrsta; 712 if (status & VDERR_HARD) { 713 if (vd->vd_type == VDTYPE_SMDE) { 714 uncache(&vd->vd_dcb.err_code); 715 ecode = vd->vd_dcb.err_code; 716 } 717 if (status & DCBS_WPT) { 718 /* 719 * Give up on write locked devices immediately. 720 */ 721 printf("dk%d: write locked\n", vi->ui_unit); 722 bp->b_flags |= B_ERROR; 723 } else if (status & VDERR_RETRY) { 724 int endline = 1; 725 726 if (status & VDERR_DRIVE) { 727 printf("dk%d%c: drive err %b, bn %d,", 728 vi->ui_unit, 'a' + vdpart(bp->b_dev), 729 status &~ DONTCARE, VDERRBITS, bp->b_blkno); 730 if (vd->vd_type == VDTYPE_SMDE) 731 printf(" ecode %x,", ecode); 732 printf(" resetting drive..."); 733 if (!vdreset_drive(vi)) 734 vi->ui_alive = 0; 735 } else if (status & VDERR_CTLR) { 736 printf("dk%d%c: controller err %b, bn %d,", 737 vi->ui_unit, 'a' + vdpart(bp->b_dev), 738 status &~ DONTCARE, VDERRBITS, bp->b_blkno); 739 if (vd->vd_type == VDTYPE_SMDE) 740 printf(" ecode %x,", ecode); 741 printf("resetting controller..."); 742 vdreset_ctlr(vm); 743 } else 744 endline = 0; 745 /* 746 * Retry transfer once, unless reset failed. 747 */ 748 if (!vi->ui_alive || dp->b_errcnt++ >= 2) { 749 if (endline) 750 printf("\n"); 751 goto hard; 752 } 753 754 if (endline) 755 printf(" retrying\n"); 756 vm->um_tab.b_active = 0; /* force retry */ 757 } else { 758 hard: 759 bp->b_flags |= B_ERROR; 760 /* NEED TO ADJUST b_blkno to failed sector */ 761 harderr(bp, "dk"); 762 printf("status %x (%b)", status, 763 status &~ DONTCARE, VDERRBITS); 764 if (vd->vd_type == VDTYPE_SMDE) 765 printf(" ecode %x", ecode); 766 printf("\n"); 767 } 768 } else if (status & DCBS_SOFT) 769 vdsofterr(vd, bp, &vd->vd_dcb); 770 if (vm->um_tab.b_active) { 771 vm->um_tab.b_active = 0; 772 vm->um_tab.b_actf = dp->b_forw; 773 dp->b_active = 0; 774 dp->b_errcnt = 0; 775 dp->b_actf = bp->av_forw; 776 bp->b_resid = 0; 777 vbadone(bp, &vd->vd_rbuf); 778 biodone(bp); 779 /* 780 * If this unit has more work to do, 781 * then start it up right away. 782 */ 783 if (dp->b_actf) 784 vdustart(vi); 785 else if ((dk = &dksoftc[vi->ui_unit])->dk_openpart == 0) 786 wakeup((caddr_t)dk); 787 } 788 /* 789 * If there are devices ready to 790 * transfer, start the controller. 791 */ 792 if (vm->um_tab.b_actf || vm->um_tab.b_seekf) 793 vdstart(vm); 794 } 795 796 vdsofterr(vd, bp, dcb) 797 struct vdsoftc *vd; 798 register struct buf *bp; 799 register struct dcb *dcb; 800 { 801 int unit = vdunit(bp->b_dev), status = dcb->operrsta; 802 char part = 'a' + vdpart(bp->b_dev); 803 804 if (status != (DCBS_CCD|DCBS_SOFT|DCBS_ERR|DCBS_DONE)) 805 log(LOG_WARNING, "dk%d%c: soft error sn%d status %b ecode %x\n", 806 unit, part, bp->b_blkno, status, VDERRBITS, dcb->err_code); 807 else 808 log(LOG_WARNING, "dk%d%c: soft ecc sn%d\n", 809 unit, part, bp->b_blkno); 810 } 811 812 vdread(dev, uio) 813 dev_t dev; 814 struct uio *uio; 815 { 816 register int unit = vdunit(dev); 817 818 if (unit >= NDK) 819 return (ENXIO); 820 return (physio(vdstrategy, &rdkbuf[unit], dev, B_READ, minphys, uio)); 821 } 822 823 vdwrite(dev, uio) 824 dev_t dev; 825 struct uio *uio; 826 { 827 register int unit = vdunit(dev); 828 829 if (unit >= NDK) 830 return (ENXIO); 831 return (physio(vdstrategy, &rdkbuf[unit], dev, B_WRITE, minphys, uio)); 832 } 833 834 vdioctl(dev, cmd, data, flag) 835 dev_t dev; 836 int cmd; 837 caddr_t data; 838 int flag; 839 { 840 int unit = vdunit(dev); 841 register struct disklabel *lp = &dklabel[unit]; 842 int error = 0; 843 844 switch (cmd) { 845 846 case DIOCGDINFO: 847 *(struct disklabel *)data = *lp; 848 break; 849 850 case DIOCGPART: 851 ((struct partinfo *)data)->disklab = lp; 852 ((struct partinfo *)data)->part = 853 &lp->d_partitions[vdpart(dev)]; 854 break; 855 856 case DIOCSDINFO: 857 if ((flag & FWRITE) == 0) 858 error = EBADF; 859 else 860 *lp = *(struct disklabel *)data; 861 break; 862 863 case DIOCWDINFO: { 864 struct buf *bp; 865 struct disklabel *dlp; 866 867 if ((flag & FWRITE) == 0) { 868 error = EBADF; 869 break; 870 } 871 *lp = *(struct disklabel *)data; 872 bp = geteblk(lp->d_secsize); 873 bp->b_dev = makedev(major(dev), vdminor(vdunit(dev), 0)); 874 bp->b_blkno = LABELSECTOR; 875 bp->b_bcount = lp->d_secsize; 876 bp->b_flags = B_READ; 877 dlp = (struct disklabel *)(bp->b_un.b_addr + LABELOFFSET); 878 vdstrategy(bp); 879 biowait(bp); 880 if (bp->b_flags & B_ERROR) { 881 error = u.u_error; /* XXX */ 882 u.u_error = 0; 883 goto bad; 884 } 885 *dlp = *lp; 886 bp->b_flags = B_WRITE; 887 vdstrategy(bp); 888 biowait(bp); 889 if (bp->b_flags & B_ERROR) { 890 error = u.u_error; /* XXX */ 891 u.u_error = 0; 892 } 893 bad: 894 brelse(bp); 895 break; 896 } 897 898 default: 899 error = ENOTTY; 900 break; 901 } 902 return (0); 903 } 904 905 /* 906 * Watch for lost interrupts. 907 */ 908 vdwatch() 909 { 910 register struct vdsoftc *vd; 911 register struct vba_ctlr *vm; 912 register int ctlr, unit; 913 914 timeout(vdwatch, (caddr_t)0, hz); 915 for (ctlr = 0; ctlr < NVD; ctlr++) { 916 vm = vdminfo[ctlr]; 917 if (vm == 0 || vm->um_alive == 0) 918 continue; 919 vd = &vdsoftc[ctlr]; 920 if (vm->um_tab.b_active && vd->vd_wticks++ >= 20) { 921 vd->vd_wticks = 0; 922 printf("vd%d: lost interrupt\n", ctlr); 923 /* abort pending dcb's and restart controller */ 924 } 925 } 926 } 927 928 #define DBSIZE 64 /* controller limit with 1K sectors */ 929 /* 930 * Crash dump. 931 */ 932 vddump(dev) 933 dev_t dev; 934 { 935 register struct vba_device *vi; 936 register struct vba_ctlr *vm; 937 register struct disklabel *lp; 938 register struct vdsoftc *vd; 939 struct dksoftc *dk; 940 int part, unit, num; 941 u_long start; 942 943 start = 0; 944 unit = vdunit(dev); 945 if (unit > NDK || (vi = vddinfo[unit]) == 0 || vi->ui_alive == 0) 946 return (ENXIO); 947 dk = &dksoftc[unit]; 948 if (dk->dk_state != OPEN && dk->dk_state != OPENRAW) 949 return (ENXIO); 950 lp = &dklabel[unit]; 951 part = vdpart(dev); 952 if (part >= lp->d_npartitions) 953 return (ENXIO); 954 vm = vi->ui_mi; 955 vdreset_ctlr(vm); 956 if (dumplo < 0) 957 return (EINVAL); 958 /* 959 * Maxfree is in pages, dumplo is in DEV_BSIZE units. 960 */ 961 num = maxfree * (NBPG / lp->d_secsize); 962 dumplo *= DEV_BSIZE / lp->d_secsize; 963 if (dumplo + num >= lp->d_partitions[vdpart(dev)].p_size) 964 num = lp->d_partitions[vdpart(dev)].p_size - dumplo; 965 vd = &vdsoftc[vm->um_ctlr]; 966 vd->vd_dcb.intflg = DCBINT_NONE; 967 vd->vd_dcb.opcode = VDOP_WD; 968 vd->vd_dcb.devselect = dk->dk_dcb.devselect; 969 vd->vd_dcb.trailcnt = sizeof (struct trrw) / sizeof (long); 970 while (num > 0) { 971 int nsec, cn, sn, tn; 972 973 nsec = MIN(num, DBSIZE); 974 sn = dumplo + start / lp->d_secsize; 975 cn = (sn + lp->d_partitions[vdpart(dev)].p_offset) / 976 lp->d_secpercyl; 977 sn %= lp->d_secpercyl; 978 tn = sn / lp->d_nsectors; 979 sn %= lp->d_nsectors; 980 vd->vd_mdcb.mdcb_head = (struct dcb *)vd->vd_dcbphys; 981 vd->vd_dcb.trail.rwtrail.memadr = start; 982 vd->vd_dcb.trail.rwtrail.wcount = (nsec * lp->d_secsize) >> 1; 983 vd->vd_dcb.trail.rwtrail.disk.cylinder = cn; 984 vd->vd_dcb.trail.rwtrail.disk.track = tn; 985 vd->vd_dcb.trail.rwtrail.disk.sector = sn; 986 vd->vd_dcb.operrsta = 0; 987 VDGO(vm->um_addr, vd->vd_mdcbphys, vd->vd_type); 988 if (!vdpoll(vm, 5)) { 989 printf(" during dump\n"); 990 return (EIO); 991 } 992 if (vd->vd_dcb.operrsta & VDERR_HARD) { 993 printf("dk%d: hard error, status=%b\n", unit, 994 vd->vd_dcb.operrsta, VDERRBITS); 995 return (EIO); 996 } 997 start += nsec * lp->d_secsize; 998 num -= nsec; 999 } 1000 return (0); 1001 } 1002 1003 vdsize(dev) 1004 dev_t dev; 1005 { 1006 register int unit = vdunit(dev); 1007 register struct dksoftc *dk; 1008 struct vba_device *vi; 1009 struct disklabel *lp; 1010 1011 if (unit >= NDK || (vi = vddinfo[unit]) == 0 || vi->ui_alive == 0 || 1012 (dk = &dksoftc[unit])->dk_state != OPEN) 1013 return (-1); 1014 lp = &dklabel[unit]; 1015 #ifdef SECSIZE 1016 return ((int)lp->d_partitions[vdpart(dev)].p_size); 1017 #else SECSIZE 1018 return ((int)lp->d_partitions[vdpart(dev)].p_size >> dk->dk_bshift); 1019 #endif SECSIZE 1020 } 1021 1022 /* 1023 * Perform a controller reset. 1024 */ 1025 vdreset_ctlr(vm) 1026 register struct vba_ctlr *vm; 1027 { 1028 register struct vddevice *vdaddr = (struct vddevice *)vm->um_addr; 1029 register struct vdsoftc *vd = &vdsoftc[vm->um_ctlr]; 1030 register int unit; 1031 struct vba_device *vi; 1032 1033 VDRESET(vdaddr, vd->vd_type); 1034 if (vd->vd_type == VDTYPE_SMDE) { 1035 vdaddr->vdcsr = 0; 1036 vdaddr->vdtcf_mdcb = AM_ENPDA; 1037 vdaddr->vdtcf_dcb = AM_ENPDA; 1038 vdaddr->vdtcf_trail = AM_ENPDA; 1039 vdaddr->vdtcf_data = AM_ENPDA; 1040 vdaddr->vdccf = CCF_STS | XMD_32BIT | BSZ_16WRD | 1041 CCF_ENP | CCF_EPE | CCF_EDE | CCF_ECE | CCF_ERR; 1042 } 1043 if (!vdcmd(vm, VDOP_INIT, 10) || !vdcmd(vm, VDOP_DIAG, 10)) { 1044 printf("%s cmd failed\n", 1045 vd->vd_dcb.opcode == VDOP_INIT ? "init" : "diag"); 1046 return; 1047 } 1048 for (unit = 0; unit < NDK; unit++) 1049 if ((vi = vddinfo[unit])->ui_mi == vm && vi->ui_alive) 1050 (void) vdreset_drive(vi); 1051 } 1052 1053 vdreset_drive(vi) 1054 register struct vba_device *vi; 1055 { 1056 register struct disklabel *lp = &dklabel[vi->ui_unit]; 1057 struct vba_ctlr *vm = vdminfo[vi->ui_ctlr]; 1058 struct vddevice *vdaddr = (struct vddevice *)vm->um_addr; 1059 register struct vdsoftc *vd = &vdsoftc[vi->ui_ctlr]; 1060 register struct dksoftc *dk = &dksoftc[vi->ui_unit]; 1061 1062 top: 1063 vd->vd_dcb.opcode = VDOP_CONFIG; /* command */ 1064 vd->vd_dcb.intflg = DCBINT_NONE; 1065 vd->vd_dcb.nxtdcb = (struct dcb *)0; /* end of chain */ 1066 vd->vd_dcb.operrsta = 0; 1067 vd->vd_dcb.devselect = vi->ui_slave | lp->d_devflags; 1068 vd->vd_dcb.trail.rstrail.ncyl = lp->d_ncylinders; 1069 vd->vd_dcb.trail.rstrail.nsurfaces = lp->d_ntracks; 1070 if (vd->vd_type == VDTYPE_SMDE) { 1071 vd->vd_dcb.trailcnt = sizeof (struct treset) / sizeof (long); 1072 vd->vd_dcb.trail.rstrail.nsectors = lp->d_nsectors; 1073 vd->vd_dcb.trail.rstrail.slip_sec = lp->d_sparespertrack; 1074 vd->vd_dcb.trail.rstrail.recovery = VDRF_NORMAL; 1075 } else 1076 vd->vd_dcb.trailcnt = 2; /* XXX */ 1077 vd->vd_mdcb.mdcb_head = (struct dcb *)vd->vd_dcbphys; 1078 vd->vd_mdcb.mdcb_status = 0; 1079 VDGO(vdaddr, vd->vd_mdcbphys, vd->vd_type); 1080 if (!vdpoll(vm, 5)) { 1081 printf(" during config\n"); 1082 return (0); 1083 } 1084 if (vd->vd_dcb.operrsta & VDERR_HARD) { 1085 if (vd->vd_type == VDTYPE_SMDE) { 1086 if (lp->d_devflags == 0) { 1087 lp->d_devflags = VD_ESDI; 1088 goto top; 1089 } 1090 #ifdef notdef 1091 /* this doesn't work, STA_US isn't set(?) */ 1092 if ((vdaddr->vdstatus[vi->ui_slave] & STA_US) == 0) 1093 return (0); 1094 #endif 1095 } 1096 if ((vd->vd_dcb.operrsta & (DCBS_OCYL|DCBS_NRDY)) == 0) 1097 printf("dk%d: config error %b ecode %x\n", vi->ui_unit, 1098 vd->vd_dcb.operrsta, VDERRBITS, vd->vd_dcb.err_code); 1099 else if ((vd->vd_flags & VD_STARTED) == 0) { 1100 int started; 1101 1102 printf(" starting drives, wait ... "); 1103 vd->vd_flags |= VD_STARTED; 1104 started = (vdcmd(vm, VDOP_START, 10) == 1); 1105 DELAY(62000000); 1106 printf("done"); 1107 lp->d_devflags = 0; 1108 if (started) 1109 goto top; 1110 } 1111 return (0); 1112 } 1113 dk->dk_dcb.devselect |= lp->d_devflags; 1114 return (1); 1115 } 1116 1117 /* 1118 * Perform a command w/o trailer. 1119 */ 1120 vdcmd(vm, cmd, t) 1121 register struct vba_ctlr *vm; 1122 { 1123 register struct vdsoftc *vd = &vdsoftc[vm->um_ctlr]; 1124 1125 vd->vd_dcb.opcode = cmd; /* command */ 1126 vd->vd_dcb.intflg = DCBINT_NONE; 1127 vd->vd_dcb.nxtdcb = (struct dcb *)0; /* end of chain */ 1128 vd->vd_dcb.operrsta = 0; 1129 vd->vd_dcb.devselect = 0; 1130 vd->vd_dcb.trailcnt = 0; 1131 vd->vd_mdcb.mdcb_head = (struct dcb *)vd->vd_dcbphys; 1132 vd->vd_mdcb.mdcb_status = 0; 1133 VDGO(vm->um_addr, vd->vd_mdcbphys, vd->vd_type); 1134 if (!vdpoll(vm, t)) { 1135 printf(" during init\n"); 1136 return (0); 1137 } 1138 return ((vd->vd_dcb.operrsta&VDERR_HARD) == 0); 1139 } 1140 1141 /* 1142 * Poll controller until operation 1143 * completes or timeout expires. 1144 */ 1145 vdpoll(vm, t) 1146 register struct vba_ctlr *vm; 1147 register int t; 1148 { 1149 register struct vdsoftc *vd = &vdsoftc[vm->um_ctlr]; 1150 register struct vddevice *vdaddr = (struct vddevice *)vm->um_addr; 1151 1152 t *= 1000; 1153 for (;;) { 1154 uncache(&vd->vd_dcb.operrsta); 1155 if (vd->vd_dcb.operrsta & (DCBS_DONE|DCBS_ABORT)) 1156 break; 1157 if (--t <= 0) { 1158 printf("vd%d: controller timeout", vm->um_ctlr); 1159 VDABORT(vdaddr, vd->vd_type); 1160 DELAY(30000); 1161 return (0); 1162 } 1163 DELAY(1000); 1164 } 1165 if (vd->vd_type == VDTYPE_SMDE) { 1166 do { 1167 DELAY(50); 1168 uncache(&vdaddr->vdcsr); 1169 } while (vdaddr->vdcsr & CS_GO); 1170 DELAY(300); 1171 uncache(&vd->vd_dcb.err_code); 1172 } 1173 DELAY(200); 1174 uncache(&vd->vd_dcb.operrsta); 1175 return (1); 1176 } 1177 1178 #ifdef COMPAT_42 1179 struct vdst { 1180 int nsec; /* sectors/track */ 1181 int ntrack; /* tracks/cylinder */ 1182 int ncyl; /* cylinders */ 1183 int secsize; /* sector size */ 1184 char *name; /* type name */ 1185 struct { 1186 int off; /* partition offset in sectors */ 1187 int size; /* partition size in sectors */ 1188 } parts[8]; 1189 } vdst[] = { 1190 { 66, 23, 850, 512, "NEC 800", 1191 {0, 1290300}, /* a cyl 0 - 849 */ 1192 }, 1193 { 48, 24, 711, 512, "xsd", 1194 {0, 61056}, /* a cyl 0 - 52 */ 1195 {61056, 61056}, /* b cyl 53 - 105 */ 1196 {122112, 691200}, /* c cyl 106 - 705 */ 1197 {237312, 576000}, /* d cyl 206 - 705 */ 1198 {352512, 460800}, /* e cyl 306 - 705 */ 1199 {467712, 345600}, /* f cyl 406 - 705 */ 1200 {582912, 230400}, /* g cyl 506 - 705 */ 1201 {698112, 115200} /* h cyl 606 - 705 */ 1202 }, 1203 { 44, 20, 842, 512, "eagle", 1204 {0, 52800}, /* egl0a cyl 0 - 59 */ 1205 {52800, 66000}, /* egl0b cyl 60 - 134 */ 1206 {118800, 617760}, /* egl0c cyl 135 - 836 */ 1207 {736560, 4400}, /* egl0d cyl 837 - 841 */ 1208 {0, 736560}, /* egl0e cyl 0 - 836 */ 1209 {0, 740960}, /* egl0f cyl 0 - 841 */ 1210 {118800, 310640}, /* egl0g cyl 135 - 487 */ 1211 {429440, 307120} /* egl0h cyl 488 - 836 */ 1212 }, 1213 { 64, 10, 823, 512, "fuj", 1214 {0, 38400}, /* fuj0a cyl 0 - 59 */ 1215 {38400, 48000}, /* fuj0b cyl 60 - 134 */ 1216 {86400, 437120}, /* fuj0c cyl 135 - 817 */ 1217 {159360, 364160}, /* fuj0d cyl 249 - 817 */ 1218 {232320, 291200}, /* fuj0e cyl 363 - 817 */ 1219 {305280, 218240}, /* fuj0f cyl 477 - 817 */ 1220 {378240, 145280}, /* fuj0g cyl 591 - 817 */ 1221 {451200, 72320} /* fug0h cyl 705 - 817 */ 1222 }, 1223 { 32, 23, 850, 1024, "NEC 800-1024", 1224 {0, 703800}, /* a cyl 0 - 849 */ 1225 }, 1226 { 32, 24, 711, 512, "xfd", 1227 { 0, 40704 }, /* a cyl 0 - 52 */ 1228 { 40704, 40704 }, /* b cyl 53 - 105 */ 1229 { 81408, 460800 }, /* c cyl 106 - 705 */ 1230 { 0, 81408 }, /* d cyl 709 - 710 (a & b) */ 1231 { 0, 542208 }, /* e cyl 0 - 705 */ 1232 { 40704, 501504 }, /* f cyl 53 - 705 (b & c) */ 1233 { 81408, 230400 }, /* g cyl 106 - 405 (1/2 of c) */ 1234 { 311808,230400 } /* h cyl 406 - 705 (1/2 of c) */ 1235 }, 1236 { 32, 19, 823, 512, "smd", 1237 {0, 40128}, /* a cyl 0-65 */ 1238 {40128, 27360}, /* b cyl 66-110 */ 1239 {67488, 429856}, /* c cyl 111-817 */ 1240 {139232, 358112}, /* d cyl 229 - 817 */ 1241 {210976, 286368}, /* e cyl 347 - 817 */ 1242 {282720, 214624}, /* f cyl 465 - 817 */ 1243 {354464, 142880}, /* g cyl 583 - 817 */ 1244 {426208, 71136} /* h cyl 701 - 817 */ 1245 }, 1246 { 18, 15, 1224, 1024, "mxd", 1247 {0, 21600}, /* a cyl 0-79 */ 1248 {21600, 22410}, /* b cyl 80-162 */ 1249 {44010, 285120}, /* c cyl 163-1217 */ 1250 #ifdef notyet 1251 {x, 237600}, /* d cyl y - 1217 */ 1252 {x, 190080}, /* e cyl y - 1217 */ 1253 {x, 142560}, /* f cyl y - 1217 */ 1254 {x, 95040}, /* g cyl y - 1217 */ 1255 {x, 47520} /* h cyl 701 - 817 */ 1256 #endif 1257 }, 1258 { 32, 10, 823, 512, "fsd", 1259 {0, 19200}, /* a cyl 0 - 59 */ 1260 {19200, 24000}, /* b cyl 60 - 134 */ 1261 {43200, 218560}, /* c cyl 135 - 817 */ 1262 } 1263 }; 1264 #define NVDST (sizeof (vdst) / sizeof (vdst[0])) 1265 1266 /* 1267 * Construct a label for an unlabeled pack. We 1268 * deduce the drive type by reading from the last 1269 * track on successively smaller drives until we 1270 * don't get an error. 1271 */ 1272 vdmaptype(vi, lp) 1273 register struct vba_device *vi; 1274 register struct disklabel *lp; 1275 { 1276 register struct vdsoftc *vd; 1277 register struct vdst *p; 1278 struct vba_ctlr *vm = vi->ui_mi; 1279 int i; 1280 1281 vd = &vdsoftc[vi->ui_ctlr]; 1282 for (p = vdst; p < &vdst[NVDST]; p++) { 1283 if (vd->vd_type == VDTYPE_VDDC && p->nsec != 32) 1284 continue; 1285 lp->d_nsectors = p->nsec; 1286 lp->d_ntracks = p->ntrack; 1287 lp->d_ncylinders = p->ncyl; 1288 lp->d_secsize = p->secsize; 1289 if (!vdreset_drive(vi)) 1290 return (0); 1291 vd->vd_dcb.opcode = VDOP_RD; 1292 vd->vd_dcb.intflg = DCBINT_NONE; 1293 vd->vd_dcb.nxtdcb = (struct dcb *)0; /* end of chain */ 1294 vd->vd_dcb.devselect = dksoftc[vi->ui_unit].dk_dcb.devselect; 1295 vd->vd_dcb.trailcnt = sizeof (struct trrw) / sizeof (long); 1296 vd->vd_dcb.trail.rwtrail.memadr = 1297 vtoph((struct proc *)0, (unsigned)vd->vd_rbuf.vb_rawbuf); 1298 vd->vd_dcb.trail.rwtrail.wcount = lp->d_secsize / sizeof(short); 1299 vd->vd_dcb.operrsta = 0; 1300 vd->vd_dcb.trail.rwtrail.disk.cylinder = p->ncyl - 2; 1301 vd->vd_dcb.trail.rwtrail.disk.track = p->ntrack - 1; 1302 vd->vd_dcb.trail.rwtrail.disk.sector = p->nsec - 1; 1303 vd->vd_mdcb.mdcb_head = (struct dcb *)vd->vd_dcbphys; 1304 vd->vd_mdcb.mdcb_status = 0; 1305 VDGO(vm->um_addr, vd->vd_mdcbphys, vd->vd_type); 1306 if (!vdpoll(vm, 60)) 1307 printf(" during probe\n"); 1308 if ((vd->vd_dcb.operrsta & VDERR_HARD) == 0) 1309 break; 1310 } 1311 if (p >= &vdst[NVDST]) 1312 return (0); 1313 1314 for (i = 0; i < 8; i++) { 1315 lp->d_partitions[i].p_offset = p->parts[i].off; 1316 lp->d_partitions[i].p_size = p->parts[i].size; 1317 } 1318 lp->d_npartitions = 8; 1319 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 1320 lp->d_rpm = 3600; 1321 bcopy(p->name, lp->d_typename, 4); 1322 return (1); 1323 } 1324 #endif COMPAT_42 1325 #endif 1326