1 /* 2 * Copyright (c) 1982, 1986 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)rk.c 7.3 (Berkeley) 05/06/88 7 */ 8 9 #include "rk.h" 10 #if NHK > 0 11 int rkpip; /* DEBUG */ 12 int rknosval; /* DEBUG */ 13 #ifdef RKDEBUG 14 int rkdebug; 15 #endif 16 #ifdef RKBDEBUG 17 int rkbdebug; 18 #endif 19 /* 20 * RK611/RK0[67] disk driver 21 * 22 * This driver mimics up.c; see it for an explanation of common code. 23 * 24 * TODO: 25 * Learn why we lose an interrupt sometime when spinning drives down 26 */ 27 #include "../machine/pte.h" 28 29 #include "param.h" 30 #include "systm.h" 31 #include "buf.h" 32 #include "conf.h" 33 #include "dir.h" 34 #include "user.h" 35 #include "map.h" 36 #include "vm.h" 37 #include "dkstat.h" 38 #include "cmap.h" 39 #include "dkbad.h" 40 #include "uio.h" 41 #include "kernel.h" 42 #include "syslog.h" 43 44 #include "../vax/cpu.h" 45 #include "ubareg.h" 46 #include "ubavar.h" 47 #include "rkreg.h" 48 49 struct rk_softc { 50 int sc_softas; 51 int sc_ndrive; 52 int sc_wticks; 53 int sc_recal; 54 } rk_softc[NHK]; 55 56 #define rkunit(dev) (minor(dev) >> 3) 57 58 /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ 59 struct size { 60 daddr_t nblocks; 61 int cyloff; 62 } rk7_sizes[8] = { 63 15884, 0, /* A=cyl 0 thru 240 */ 64 10032, 241, /* B=cyl 241 thru 392 */ 65 53790, 0, /* C=cyl 0 thru 814 */ 66 15884, 393, /* D=cyl 393 thru 633 */ 67 0, 0, 68 11792, 634, /* F=cyl 634 thru 814 */ 69 27786, 393, /* G=cyl 393 thru 814, should be 27698 */ 70 0, 0, 71 }, rk6_sizes[8] ={ 72 15884, 0, /* A=cyl 0 thru 240 */ 73 11154, 241, /* B=cyl 241 thru 409 */ 74 27126, 0, /* C=cyl 0 thru 410 */ 75 0, 0, 76 0, 0, 77 0, 0, 78 0, 0, 79 0, 0, 80 }; 81 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ 82 83 short rktypes[] = { RK_CDT, 0 }; 84 85 int rkprobe(), rkslave(), rkattach(), rkdgo(), rkintr(); 86 struct uba_ctlr *rkminfo[NHK]; 87 struct uba_device *rkdinfo[NRK]; 88 struct uba_device *rkip[NHK][4]; 89 90 u_short rkstd[] = { 0777440, 0 }; 91 struct uba_driver hkdriver = 92 { rkprobe, rkslave, rkattach, rkdgo, rkstd, "rk", rkdinfo, "hk", rkminfo, 1 }; 93 struct buf rkutab[NRK]; 94 short rkcyl[NRK]; 95 struct dkbad rkbad[NRK]; 96 struct buf brkbuf[NRK]; 97 98 struct rkst { 99 short nsect; 100 short ntrak; 101 short nspc; 102 short ncyl; 103 struct size *sizes; 104 } rkst[] = { 105 NRKSECT, NRKTRK, NRKSECT*NRKTRK, NRK7CYL, rk7_sizes, 106 NRKSECT, NRKTRK, NRKSECT*NRKTRK, NRK6CYL, rk6_sizes, 107 }; 108 109 u_char rk_offset[16] = 110 { RKAS_P400,RKAS_M400,RKAS_P400,RKAS_M400,RKAS_P800,RKAS_M800,RKAS_P800, 111 RKAS_M800,RKAS_P1200,RKAS_M1200,RKAS_P1200,RKAS_M1200,0,0,0,0 112 }; 113 114 #define b_cylin b_resid 115 116 int rkwstart, rkwatch(); 117 118 rkprobe(reg) 119 caddr_t reg; 120 { 121 register int br, cvec; 122 123 #ifdef lint 124 br = 0; cvec = br; br = cvec; 125 rkintr(0); 126 #endif 127 ((struct rkdevice *)reg)->rkcs1 = RK_CDT|RK_IE|RK_CRDY; 128 DELAY(10); 129 ((struct rkdevice *)reg)->rkcs1 = RK_CDT; 130 return (sizeof (struct rkdevice)); 131 } 132 133 rkslave(ui, reg) 134 struct uba_device *ui; 135 caddr_t reg; 136 { 137 register struct rkdevice *rkaddr = (struct rkdevice *)reg; 138 139 ui->ui_type = 0; 140 rkaddr->rkcs1 = RK_CCLR; 141 rkaddr->rkcs2 = ui->ui_slave; 142 rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO; 143 rkwait(rkaddr); 144 DELAY(50); 145 if (rkaddr->rkcs2&RKCS2_NED || (rkaddr->rkds&RKDS_SVAL) == 0) { 146 rkaddr->rkcs1 = RK_CCLR; 147 return (0); 148 } 149 if (rkaddr->rkcs1&RK_CERR && rkaddr->rker&RKER_DTYE) { 150 ui->ui_type = 1; 151 rkaddr->rkcs1 = RK_CCLR; 152 } 153 return (1); 154 } 155 156 rkattach(ui) 157 register struct uba_device *ui; 158 { 159 160 if (rkwstart == 0) { 161 timeout(rkwatch, (caddr_t)0, hz); 162 rkwstart++; 163 } 164 if (ui->ui_dk >= 0) 165 dk_mspw[ui->ui_dk] = 1.0 / (60 * NRKSECT * 256); 166 rkip[ui->ui_ctlr][ui->ui_slave] = ui; 167 rk_softc[ui->ui_ctlr].sc_ndrive++; 168 rkcyl[ui->ui_unit] = -1; 169 ui->ui_flags = 0; 170 } 171 172 rkopen(dev) 173 dev_t dev; 174 { 175 register int unit = rkunit(dev); 176 register struct uba_device *ui; 177 178 if (unit >= NRK || (ui = rkdinfo[unit]) == 0 || ui->ui_alive == 0) 179 return (ENXIO); 180 return (0); 181 } 182 183 rkstrategy(bp) 184 register struct buf *bp; 185 { 186 register struct uba_device *ui; 187 register struct rkst *st; 188 register int unit; 189 register struct buf *dp; 190 int xunit = minor(bp->b_dev) & 07; 191 long bn, sz; 192 int s; 193 194 sz = (bp->b_bcount+511) >> 9; 195 unit = rkunit(bp->b_dev); 196 if (unit >= NRK) { 197 bp->b_error = ENXIO; 198 goto bad; 199 } 200 ui = rkdinfo[unit]; 201 if (ui == 0 || ui->ui_alive == 0) { 202 bp->b_error = ENXIO; 203 goto bad; 204 } 205 st = &rkst[ui->ui_type]; 206 if (bp->b_blkno < 0 || 207 (bn = bp->b_blkno)+sz > st->sizes[xunit].nblocks) { 208 if (bp->b_blkno == st->sizes[xunit].nblocks) { 209 bp->b_resid = bp->b_bcount; 210 goto done; 211 } 212 bp->b_error = EINVAL; 213 goto bad; 214 } 215 bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; 216 s = spl5(); 217 dp = &rkutab[ui->ui_unit]; 218 disksort(dp, bp); 219 if (dp->b_active == 0) { 220 (void) rkustart(ui); 221 bp = &ui->ui_mi->um_tab; 222 if (bp->b_actf && bp->b_active == 0) 223 (void) rkstart(ui->ui_mi); 224 } 225 splx(s); 226 return; 227 228 bad: 229 bp->b_flags |= B_ERROR; 230 done: 231 iodone(bp); 232 return; 233 } 234 235 rkustart(ui) 236 register struct uba_device *ui; 237 { 238 register struct buf *bp, *dp; 239 register struct uba_ctlr *um; 240 register struct rkdevice *rkaddr; 241 242 if (ui == 0) 243 return; 244 dk_busy &= ~(1<<ui->ui_dk); 245 dp = &rkutab[ui->ui_unit]; 246 um = ui->ui_mi; 247 rkaddr = (struct rkdevice *)um->um_addr; 248 if (um->um_tab.b_active) { 249 rk_softc[um->um_ctlr].sc_softas |= 1<<ui->ui_slave; 250 return; 251 } 252 if ((bp = dp->b_actf) == NULL) 253 return; 254 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_CERR; 255 rkaddr->rkcs2 = ui->ui_slave; 256 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 257 rkwait(rkaddr); 258 if ((rkaddr->rkds & RKDS_VV) == 0 || ui->ui_flags == 0) { 259 /* SHOULD WARN SYSTEM THAT THIS HAPPENED */ 260 struct rkst *st = &rkst[ui->ui_type]; 261 struct buf *bbp = &brkbuf[ui->ui_unit]; 262 263 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_PACK|RK_GO; 264 ui->ui_flags = 1; 265 bbp->b_flags = B_READ|B_BUSY; 266 bbp->b_dev = bp->b_dev; 267 bbp->b_bcount = 512; 268 bbp->b_un.b_addr = (caddr_t)&rkbad[ui->ui_unit]; 269 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 270 bbp->b_cylin = st->ncyl - 1; 271 dp->b_actf = bbp; 272 bbp->av_forw = bp; 273 bp = bbp; 274 rkwait(rkaddr); 275 } 276 if (dp->b_active) 277 goto done; 278 dp->b_active = 1; 279 if ((rkaddr->rkds & RKDS_DREADY) != RKDS_DREADY) 280 goto done; 281 if (rk_softc[um->um_ctlr].sc_ndrive == 1) 282 goto done; 283 if (bp->b_cylin == rkcyl[ui->ui_unit]) 284 goto done; 285 rkaddr->rkcyl = bp->b_cylin; 286 rkcyl[ui->ui_unit] = bp->b_cylin; 287 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_SEEK|RK_GO; 288 if (ui->ui_dk >= 0) { 289 dk_busy |= 1<<ui->ui_dk; 290 dk_seek[ui->ui_dk]++; 291 } 292 goto out; 293 done: 294 if (dp->b_active != 2) { 295 dp->b_forw = NULL; 296 if (um->um_tab.b_actf == NULL) 297 um->um_tab.b_actf = dp; 298 else 299 um->um_tab.b_actl->b_forw = dp; 300 um->um_tab.b_actl = dp; 301 dp->b_active = 2; 302 } 303 out: 304 return; 305 } 306 307 rkstart(um) 308 register struct uba_ctlr *um; 309 { 310 register struct buf *bp, *dp; 311 register struct uba_device *ui; 312 register struct rkdevice *rkaddr; 313 struct rkst *st; 314 daddr_t bn; 315 int sn, tn, cmd; 316 317 loop: 318 if ((dp = um->um_tab.b_actf) == NULL) 319 return; 320 if ((bp = dp->b_actf) == NULL) { 321 um->um_tab.b_actf = dp->b_forw; 322 goto loop; 323 } 324 um->um_tab.b_active++; 325 ui = rkdinfo[rkunit(bp->b_dev)]; 326 bn = bp->b_blkno; 327 st = &rkst[ui->ui_type]; 328 sn = bn%st->nspc; 329 tn = sn/st->nsect; 330 sn %= st->nsect; 331 rkaddr = (struct rkdevice *)ui->ui_addr; 332 retry: 333 rkaddr->rkcs1 = RK_CCLR; 334 rkaddr->rkcs2 = ui->ui_slave; 335 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 336 rkwait(rkaddr); 337 if ((rkaddr->rkds&RKDS_SVAL) == 0) { 338 rknosval++; 339 goto nosval; 340 } 341 if (rkaddr->rkds&RKDS_PIP) { 342 rkpip++; 343 goto retry; 344 } 345 if ((rkaddr->rkds&RKDS_DREADY) != RKDS_DREADY) { 346 printf("rk%d: not ready", rkunit(bp->b_dev)); 347 if ((rkaddr->rkds&RKDS_DREADY) != RKDS_DREADY) { 348 printf("\n"); 349 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 350 rkwait(rkaddr); 351 rkaddr->rkcs1 = RK_CCLR; 352 rkwait(rkaddr); 353 um->um_tab.b_active = 0; 354 um->um_tab.b_errcnt = 0; 355 dp->b_actf = bp->av_forw; 356 dp->b_active = 0; 357 bp->b_flags |= B_ERROR; 358 iodone(bp); 359 goto loop; 360 } 361 printf(" (came back!)\n"); 362 } 363 nosval: 364 rkaddr->rkcyl = bp->b_cylin; 365 rkcyl[ui->ui_unit] = bp->b_cylin; 366 rkaddr->rkda = (tn << 8) + sn; 367 rkaddr->rkwc = -bp->b_bcount / sizeof (short); 368 if (bp->b_flags & B_READ) 369 cmd = rktypes[ui->ui_type]|RK_IE|RK_READ|RK_GO; 370 else 371 cmd = rktypes[ui->ui_type]|RK_IE|RK_WRITE|RK_GO; 372 um->um_cmd = cmd; 373 (void) ubago(ui); 374 } 375 376 rkdgo(um) 377 register struct uba_ctlr *um; 378 { 379 register struct rkdevice *rkaddr = (struct rkdevice *)um->um_addr; 380 381 um->um_tab.b_active = 2; /* should now be 2 */ 382 rkaddr->rkba = um->um_ubinfo; 383 rkaddr->rkcs1 = um->um_cmd|((um->um_ubinfo>>8)&0x300); 384 } 385 386 rkintr(rk11) 387 int rk11; 388 { 389 register struct uba_ctlr *um = rkminfo[rk11]; 390 register struct uba_device *ui; 391 register struct rkdevice *rkaddr = (struct rkdevice *)um->um_addr; 392 register struct buf *bp, *dp; 393 int unit; 394 struct rk_softc *sc = &rk_softc[um->um_ctlr]; 395 int as = (rkaddr->rkatt >> 8) | sc->sc_softas; 396 397 sc->sc_wticks = 0; 398 sc->sc_softas = 0; 399 if (um->um_tab.b_active == 2 || sc->sc_recal) { 400 um->um_tab.b_active = 1; 401 dp = um->um_tab.b_actf; 402 bp = dp->b_actf; 403 ui = rkdinfo[rkunit(bp->b_dev)]; 404 dk_busy &= ~(1 << ui->ui_dk); 405 if (bp->b_flags&B_BAD) 406 if (rkecc(ui, CONT)) 407 return; 408 if (rkaddr->rkcs1 & RK_CERR) { 409 int recal; 410 u_short ds = rkaddr->rkds; 411 u_short cs2 = rkaddr->rkcs2; 412 u_short er = rkaddr->rker; 413 #ifdef RKDEBUG 414 if (rkdebug) { 415 printf("cs2=%b ds=%b er=%b\n", 416 cs2, RKCS2_BITS, ds, 417 RKDS_BITS, er, RKER_BITS); 418 } 419 #endif 420 if (er & RKER_WLE) { 421 printf("rk%d: write locked\n", 422 rkunit(bp->b_dev)); 423 bp->b_flags |= B_ERROR; 424 } else if (++um->um_tab.b_errcnt > 28 || 425 ds&RKDS_HARD || er&RKER_HARD || cs2&RKCS2_HARD) { 426 hard: 427 harderr(bp, "rk"); 428 printf("cs2=%b ds=%b er=%b\n", 429 cs2, RKCS2_BITS, ds, 430 RKDS_BITS, er, RKER_BITS); 431 bp->b_flags |= B_ERROR; 432 sc->sc_recal = 0; 433 } else if (er & RKER_BSE) { 434 if (rkecc(ui, BSE)) 435 return; 436 else 437 goto hard; 438 } else { 439 if ((er & (RKER_DCK|RKER_ECH)) == RKER_DCK) { 440 if (rkecc(ui, ECC)) 441 return; 442 } else 443 um->um_tab.b_active = 0; 444 } 445 if (cs2&RKCS2_MDS) { 446 rkaddr->rkcs2 = RKCS2_SCLR; 447 goto retry; 448 } 449 recal = 0; 450 if (ds&RKDS_DROT || er&(RKER_OPI|RKER_SKI|RKER_UNS) || 451 (um->um_tab.b_errcnt&07) == 4) 452 recal = 1; 453 rkaddr->rkcs1 = RK_CCLR; 454 rkaddr->rkcs2 = ui->ui_slave; 455 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 456 rkwait(rkaddr); 457 if (recal && um->um_tab.b_active == 0) { 458 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_RECAL|RK_GO; 459 rkcyl[ui->ui_unit] = -1; 460 sc->sc_recal = 0; 461 goto nextrecal; 462 } 463 } 464 retry: 465 switch (sc->sc_recal) { 466 467 case 1: 468 rkaddr->rkcyl = bp->b_cylin; 469 rkcyl[ui->ui_unit] = bp->b_cylin; 470 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_SEEK|RK_GO; 471 goto nextrecal; 472 case 2: 473 if (um->um_tab.b_errcnt < 16 || 474 (bp->b_flags&B_READ) == 0) 475 goto donerecal; 476 rkaddr->rkatt = rk_offset[um->um_tab.b_errcnt & 017]; 477 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_OFFSET|RK_GO; 478 /* fall into ... */ 479 nextrecal: 480 sc->sc_recal++; 481 rkwait(rkaddr); 482 um->um_tab.b_active = 1; 483 return; 484 donerecal: 485 case 3: 486 sc->sc_recal = 0; 487 um->um_tab.b_active = 0; 488 break; 489 } 490 ubadone(um); 491 if (um->um_tab.b_active) { 492 um->um_tab.b_active = 0; 493 um->um_tab.b_errcnt = 0; 494 um->um_tab.b_actf = dp->b_forw; 495 dp->b_active = 0; 496 dp->b_errcnt = 0; 497 dp->b_actf = bp->av_forw; 498 bp->b_resid = -rkaddr->rkwc * sizeof(short); 499 iodone(bp); 500 if (dp->b_actf) 501 rkustart(ui); 502 } 503 as &= ~(1<<ui->ui_slave); 504 } 505 for (unit = 0; as; as >>= 1, unit++) 506 if (as & 1) { 507 ui = rkip[rk11][unit]; 508 if (ui) { 509 rkustart(rkip[rk11][unit]); 510 } else { 511 rkaddr->rkcs1 = RK_CCLR; 512 rkaddr->rkcs2 = unit; 513 rkaddr->rkcs1 = RK_DCLR|RK_GO; 514 rkwait(rkaddr); 515 rkaddr->rkcs1 = RK_CCLR; 516 } 517 } 518 if (um->um_tab.b_actf && um->um_tab.b_active == 0) 519 rkstart(um); 520 if (((rkaddr->rkcs1) & RK_IE) == 0) 521 rkaddr->rkcs1 = RK_IE; 522 } 523 524 rkwait(addr) 525 register struct rkdevice *addr; 526 { 527 528 while ((addr->rkcs1 & RK_CRDY) == 0) 529 ; 530 } 531 532 rkecc(ui, flag) 533 register struct uba_device *ui; 534 { 535 register struct rkdevice *rk = (struct rkdevice *)ui->ui_addr; 536 register struct buf *bp = rkutab[ui->ui_unit].b_actf; 537 register struct uba_ctlr *um = ui->ui_mi; 538 register struct rkst *st; 539 struct uba_regs *ubp = ui->ui_hd->uh_uba; 540 caddr_t addr; 541 int reg, npf, o, cmd, ubaddr; 542 int bn, cn, tn, sn; 543 544 if (flag == CONT) 545 npf = bp->b_error; 546 else 547 npf = btodb(bp->b_bcount + (rk->rkwc * sizeof(short)) + 511); 548 reg = btop(um->um_ubinfo&0x3ffff) + npf; 549 o = (int)bp->b_un.b_addr & PGOFSET; 550 bn = bp->b_blkno; 551 st = &rkst[ui->ui_type]; 552 cn = bp->b_cylin; 553 sn = bn%st->nspc + npf; 554 tn = sn/st->nsect; 555 sn %= st->nsect; 556 cn += tn/st->ntrak; 557 tn %= st->ntrak; 558 ubapurge(um); 559 switch (flag) { 560 case ECC: 561 { 562 register int i; 563 int bit, byte, mask; 564 565 npf--; 566 reg--; 567 log(LOG_WARNING, "rk%d%c: soft ecc sn%d\n", rkunit(bp->b_dev), 568 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); 569 mask = rk->rkec2; 570 i = rk->rkec1 - 1; /* -1 makes 0 origin */ 571 bit = i&07; 572 i = (i&~07)>>3; 573 byte = i + o; 574 while (i < 512 && (int)dbtob(npf)+i < bp->b_bcount && bit > -11) { 575 addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+ 576 (byte & PGOFSET); 577 putmemc(addr, getmemc(addr)^(mask<<bit)); 578 byte++; 579 i++; 580 bit -= 8; 581 } 582 if (rk->rkwc == 0) { 583 um->um_tab.b_active = 0; 584 return (0); 585 } 586 npf++; 587 reg++; 588 break; 589 } 590 591 case BSE: 592 #ifdef RKBDEBUG 593 if (rkbdebug) 594 printf("rkecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 595 #endif 596 if ((bn = isbad(&rkbad[ui->ui_unit], cn, tn, sn)) < 0) 597 return(0); 598 bp->b_flags |= B_BAD; 599 bp->b_error = npf + 1; 600 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 601 cn = bn/st->nspc; 602 sn = bn%st->nspc; 603 tn = sn/st->nsect; 604 sn %= st->nsect; 605 #ifdef RKBDEBUG 606 if (rkbdebug) 607 printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); 608 #endif 609 rk->rkwc = -(512 / sizeof (short)); 610 break; 611 612 case CONT: 613 #ifdef RKBDEBUG 614 if (rkbdebug) 615 printf("rkecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 616 #endif 617 bp->b_flags &= ~B_BAD; 618 if ((int)dbtob(npf) >= bp->b_bcount) 619 return (0); 620 rk->rkwc = -((bp->b_bcount - (int)dbtob(npf)) / sizeof (short)); 621 break; 622 } 623 rk->rkcs1 = RK_CCLR; 624 rk->rkcs2 = ui->ui_slave; 625 rk->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 626 rkwait(rk); 627 rk->rkcyl = cn; 628 rk->rkda = (tn << 8) | sn; 629 ubaddr = (int)ptob(reg) + o; 630 rk->rkba = ubaddr; 631 cmd = (bp->b_flags&B_READ ? RK_READ : RK_WRITE)|RK_IE|RK_GO; 632 cmd |= (ubaddr >> 8) & 0x300; 633 cmd |= rktypes[ui->ui_type]; 634 rk->rkcs1 = cmd; 635 um->um_tab.b_active = 2; /* continuing */ 636 um->um_tab.b_errcnt = 0; /* error has been corrected */ 637 return (1); 638 } 639 640 rkreset(uban) 641 int uban; 642 { 643 register struct uba_ctlr *um; 644 register struct uba_device *ui; 645 register rk11, unit; 646 647 for (rk11 = 0; rk11 < NHK; rk11++) { 648 if ((um = rkminfo[rk11]) == 0 || um->um_ubanum != uban || 649 um->um_alive == 0) 650 continue; 651 printf(" hk%d", rk11); 652 um->um_tab.b_active = 0; 653 um->um_tab.b_actf = um->um_tab.b_actl = 0; 654 rk_softc[um->um_ctlr].sc_recal = 0; 655 rk_softc[um->um_ctlr].sc_wticks = 0; 656 if (um->um_ubinfo) { 657 printf("<%d>", (um->um_ubinfo>>28)&0xf); 658 um->um_ubinfo = 0; 659 } 660 for (unit = 0; unit < NRK; unit++) { 661 if ((ui = rkdinfo[unit]) == 0) 662 continue; 663 if (ui->ui_alive == 0 || ui->ui_mi != um) 664 continue; 665 rkutab[unit].b_active = 0; 666 (void) rkustart(ui); 667 } 668 (void) rkstart(um); 669 } 670 } 671 672 rkwatch() 673 { 674 register struct uba_ctlr *um; 675 register rk11, unit; 676 register struct rk_softc *sc; 677 678 timeout(rkwatch, (caddr_t)0, hz); 679 for (rk11 = 0; rk11 < NHK; rk11++) { 680 um = rkminfo[rk11]; 681 if (um == 0 || um->um_alive == 0) 682 continue; 683 sc = &rk_softc[rk11]; 684 if (um->um_tab.b_active == 0) { 685 for (unit = 0; unit < NRK; unit++) 686 if (rkutab[unit].b_active && 687 rkdinfo[unit]->ui_mi == um) 688 goto active; 689 sc->sc_wticks = 0; 690 continue; 691 } 692 active: 693 sc->sc_wticks++; 694 if (sc->sc_wticks >= 20) { 695 sc->sc_wticks = 0; 696 printf("hk%d: lost interrupt\n", rk11); 697 ubareset(um->um_ubanum); 698 } 699 } 700 } 701 702 #define DBSIZE 20 703 704 rkdump(dev) 705 dev_t dev; 706 { 707 struct rkdevice *rkaddr; 708 char *start; 709 int num, blk, unit; 710 struct size *sizes; 711 register struct uba_regs *uba; 712 register struct uba_device *ui; 713 register short *rp; 714 struct rkst *st; 715 716 unit = rkunit(dev); 717 if (unit >= NRK) 718 return (ENXIO); 719 #define phys(cast, addr) ((cast)((int)addr & 0x7fffffff)) 720 ui = phys(struct uba_device *, rkdinfo[unit]); 721 if (ui->ui_alive == 0) 722 return (ENXIO); 723 uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba; 724 ubainit(uba); 725 rkaddr = (struct rkdevice *)ui->ui_physaddr; 726 num = maxfree; 727 start = 0; 728 rkaddr->rkcs1 = RK_CCLR; 729 rkaddr->rkcs2 = unit; 730 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 731 rkwait(rkaddr); 732 if ((rkaddr->rkds & RKDS_VV) == 0) { 733 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_PACK|RK_GO; 734 rkwait(rkaddr); 735 } 736 st = &rkst[ui->ui_type]; 737 sizes = phys(struct size *, st->sizes); 738 if (dumplo < 0) 739 return (EINVAL); 740 if (dumplo + num >= sizes[minor(dev)&07].nblocks) 741 num = sizes[minor(dev)&07].nblocks - dumplo; 742 while (num > 0) { 743 register struct pte *io; 744 register int i; 745 int cn, sn, tn; 746 daddr_t bn; 747 748 blk = num > DBSIZE ? DBSIZE : num; 749 io = uba->uba_map; 750 for (i = 0; i < blk; i++) 751 *(int *)io++ = (btop(start)+i) | (1<<21) | UBAMR_MRV; 752 *(int *)io = 0; 753 bn = dumplo + btop(start); 754 cn = bn/st->nspc + sizes[minor(dev)&07].cyloff; 755 sn = bn%st->nspc; 756 tn = sn/st->nsect; 757 sn = sn%st->nsect; 758 rkaddr->rkcyl = cn; 759 rp = (short *) &rkaddr->rkda; 760 *rp = (tn << 8) + sn; 761 *--rp = 0; 762 *--rp = -blk*NBPG / sizeof (short); 763 *--rp = rktypes[ui->ui_type]|RK_GO|RK_WRITE; 764 rkwait(rkaddr); 765 if (rkaddr->rkcs1 & RK_CERR) 766 return (EIO); 767 start += blk*NBPG; 768 num -= blk; 769 } 770 return (0); 771 } 772 773 rksize(dev) 774 dev_t dev; 775 { 776 int unit = rkunit(dev); 777 struct uba_device *ui; 778 struct rkst *st; 779 780 if (unit >= NRK || (ui = rkdinfo[unit]) == 0 || ui->ui_alive == 0) 781 return (-1); 782 st = &rkst[ui->ui_type]; 783 return (st->sizes[minor(dev) & 07].nblocks); 784 } 785 #endif 786