1 /* rk.c 4.49 82/10/17 */ 2 3 #include "rk.h" 4 #if NHK > 0 5 int rkpip; /* DEBUG */ 6 int rknosval; /* DEBUG */ 7 #ifdef RKDEBUG 8 int rkdebug; 9 #endif 10 #ifdef RKBDEBUG 11 int rkbdebug; 12 #endif 13 /* 14 * RK611/RK0[67] disk driver 15 * 16 * This driver mimics up.c; see it for an explanation of common code. 17 * 18 * TODO: 19 * Learn why we lose an interrupt sometime when spinning drives down 20 */ 21 #include "../h/param.h" 22 #include "../h/systm.h" 23 #include "../h/buf.h" 24 #include "../h/conf.h" 25 #include "../h/dir.h" 26 #include "../h/user.h" 27 #include "../h/pte.h" 28 #include "../h/map.h" 29 #include "../h/vm.h" 30 #include "../h/dk.h" 31 #include "../h/cmap.h" 32 #include "../h/dkbad.h" 33 #include "../h/uio.h" 34 35 #include "../vax/cpu.h" 36 #include "../vaxuba/ubareg.h" 37 #include "../vaxuba/ubavar.h" 38 #include "../vaxuba/rkreg.h" 39 40 struct rk_softc { 41 int sc_softas; 42 int sc_ndrive; 43 int sc_wticks; 44 int sc_recal; 45 } rk_softc[NHK]; 46 47 /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ 48 struct size { 49 daddr_t nblocks; 50 int cyloff; 51 } rk7_sizes[8] ={ 52 15884, 0, /* A=cyl 0 thru 240 */ 53 10032, 241, /* B=cyl 241 thru 392 */ 54 53790, 0, /* C=cyl 0 thru 814 */ 55 0, 0, 56 0, 0, 57 0, 0, 58 27786, 393, /* G=cyl 393 thru 813 */ 59 0, 0, 60 }, rk6_sizes[8] ={ 61 15884, 0, /* A=cyl 0 thru 240 */ 62 11154, 241, /* B=cyl 241 thru 409 */ 63 27126, 0, /* C=cyl 0 thru 410 */ 64 0, 0, 65 0, 0, 66 0, 0, 67 0, 0, 68 0, 0, 69 }; 70 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ 71 72 short rktypes[] = { RK_CDT, 0 }; 73 74 int rkprobe(), rkslave(), rkattach(), rkdgo(), rkintr(); 75 struct uba_ctlr *rkminfo[NHK]; 76 struct uba_device *rkdinfo[NRK]; 77 struct uba_device *rkip[NHK][4]; 78 79 u_short rkstd[] = { 0777440, 0 }; 80 struct uba_driver hkdriver = 81 { rkprobe, rkslave, rkattach, rkdgo, rkstd, "rk", rkdinfo, "hk", rkminfo, 1 }; 82 struct buf rkutab[NRK]; 83 short rkcyl[NRK]; 84 #ifndef NOBADSECT 85 struct dkbad rkbad[NRK]; 86 struct buf brkbuf[NRK]; 87 #endif 88 89 struct rkst { 90 short nsect; 91 short ntrak; 92 short nspc; 93 short ncyl; 94 struct size *sizes; 95 } rkst[] = { 96 NRKSECT, NRKTRK, NRKSECT*NRKTRK, NRK7CYL, rk7_sizes, 97 NRKSECT, NRKTRK, NRKSECT*NRKTRK, NRK6CYL, rk6_sizes, 98 }; 99 100 u_char rk_offset[16] = 101 { RKAS_P400,RKAS_M400,RKAS_P400,RKAS_M400,RKAS_P800,RKAS_M800,RKAS_P800, 102 RKAS_M800,RKAS_P1200,RKAS_M1200,RKAS_P1200,RKAS_M1200,0,0,0,0 103 }; 104 105 struct buf rrkbuf[NRK]; 106 107 #define b_cylin b_resid 108 109 #ifdef INTRLVE 110 daddr_t dkblock(); 111 #endif 112 113 int rkwstart, rkwatch(); 114 115 rkprobe(reg) 116 caddr_t reg; 117 { 118 register int br, cvec; 119 120 #ifdef lint 121 br = 0; cvec = br; br = cvec; 122 rkintr(0); 123 #endif 124 ((struct rkdevice *)reg)->rkcs1 = RK_CDT|RK_IE|RK_CRDY; 125 DELAY(10); 126 ((struct rkdevice *)reg)->rkcs1 = RK_CDT; 127 return (sizeof (struct rkdevice)); 128 } 129 130 rkslave(ui, reg) 131 struct uba_device *ui; 132 caddr_t reg; 133 { 134 register struct rkdevice *rkaddr = (struct rkdevice *)reg; 135 136 ui->ui_type = 0; 137 rkaddr->rkcs1 = RK_CCLR; 138 rkaddr->rkcs2 = ui->ui_slave; 139 rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO; 140 rkwait(rkaddr); 141 DELAY(50); 142 if (rkaddr->rkcs2&RKCS2_NED || (rkaddr->rkds&RKDS_SVAL) == 0) { 143 rkaddr->rkcs1 = RK_CCLR; 144 return (0); 145 } 146 if (rkaddr->rkcs1&RK_CERR && rkaddr->rker&RKER_DTYE) { 147 ui->ui_type = 1; 148 rkaddr->rkcs1 = RK_CCLR; 149 } 150 return (1); 151 } 152 153 rkattach(ui) 154 register struct uba_device *ui; 155 { 156 157 if (rkwstart == 0) { 158 timeout(rkwatch, (caddr_t)0, hz); 159 rkwstart++; 160 } 161 if (ui->ui_dk >= 0) 162 dk_mspw[ui->ui_dk] = 1.0 / (60 * NRKSECT * 256); 163 rkip[ui->ui_ctlr][ui->ui_slave] = ui; 164 rk_softc[ui->ui_ctlr].sc_ndrive++; 165 rkcyl[ui->ui_unit] = -1; 166 ui->ui_flags = 0; 167 } 168 169 rkopen(dev) 170 dev_t dev; 171 { 172 register int unit = minor(dev) >> 3; 173 register struct uba_device *ui; 174 175 if (unit >= NRK || (ui = rkdinfo[unit]) == 0 || ui->ui_alive == 0) 176 return (ENXIO); 177 return (0); 178 } 179 180 rkstrategy(bp) 181 register struct buf *bp; 182 { 183 register struct uba_device *ui; 184 register struct rkst *st; 185 register int unit; 186 register struct buf *dp; 187 int xunit = minor(bp->b_dev) & 07; 188 long bn, sz; 189 int s; 190 191 sz = (bp->b_bcount+511) >> 9; 192 unit = dkunit(bp); 193 if (unit >= NRK) 194 goto bad; 195 ui = rkdinfo[unit]; 196 if (ui == 0 || ui->ui_alive == 0) 197 goto bad; 198 st = &rkst[ui->ui_type]; 199 if (bp->b_blkno < 0 || 200 (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) 201 goto bad; 202 bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; 203 s = spl5(); 204 dp = &rkutab[ui->ui_unit]; 205 disksort(dp, bp); 206 if (dp->b_active == 0) { 207 (void) rkustart(ui); 208 bp = &ui->ui_mi->um_tab; 209 if (bp->b_actf && bp->b_active == 0) 210 (void) rkstart(ui->ui_mi); 211 } 212 splx(s); 213 return; 214 215 bad: 216 bp->b_flags |= B_ERROR; 217 iodone(bp); 218 return; 219 } 220 221 rkustart(ui) 222 register struct uba_device *ui; 223 { 224 register struct buf *bp, *dp; 225 register struct uba_ctlr *um; 226 register struct rkdevice *rkaddr; 227 228 if (ui == 0) 229 return; 230 dk_busy &= ~(1<<ui->ui_dk); 231 dp = &rkutab[ui->ui_unit]; 232 um = ui->ui_mi; 233 rkaddr = (struct rkdevice *)um->um_addr; 234 if (um->um_tab.b_active) { 235 rk_softc[um->um_ctlr].sc_softas |= 1<<ui->ui_slave; 236 return; 237 } 238 if ((bp = dp->b_actf) == NULL) 239 return; 240 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_CERR; 241 rkaddr->rkcs2 = ui->ui_slave; 242 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 243 rkwait(rkaddr); 244 if ((rkaddr->rkds & RKDS_VV) == 0 || ui->ui_flags == 0) { 245 /* SHOULD WARN SYSTEM THAT THIS HAPPENED */ 246 #ifndef NOBADSECT 247 struct rkst *st = &rkst[ui->ui_type]; 248 struct buf *bbp = &brkbuf[ui->ui_unit]; 249 #endif 250 251 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_PACK|RK_GO; 252 ui->ui_flags = 1; 253 #ifndef NOBADSECT 254 bbp->b_flags = B_READ|B_BUSY; 255 bbp->b_dev = bp->b_dev; 256 bbp->b_bcount = 512; 257 bbp->b_un.b_addr = (caddr_t)&rkbad[ui->ui_unit]; 258 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 259 bbp->b_cylin = st->ncyl - 1; 260 dp->b_actf = bbp; 261 bbp->av_forw = bp; 262 bp = bbp; 263 #endif 264 rkwait(rkaddr); 265 } 266 if (dp->b_active) 267 goto done; 268 dp->b_active = 1; 269 if ((rkaddr->rkds & RKDS_DREADY) != RKDS_DREADY) 270 goto done; 271 if (rk_softc[um->um_ctlr].sc_ndrive == 1) 272 goto done; 273 if (bp->b_cylin == rkcyl[ui->ui_unit]) 274 goto done; 275 rkaddr->rkcyl = bp->b_cylin; 276 rkcyl[ui->ui_unit] = bp->b_cylin; 277 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_SEEK|RK_GO; 278 if (ui->ui_dk >= 0) { 279 dk_busy |= 1<<ui->ui_dk; 280 dk_seek[ui->ui_dk]++; 281 } 282 goto out; 283 done: 284 if (dp->b_active != 2) { 285 dp->b_forw = NULL; 286 if (um->um_tab.b_actf == NULL) 287 um->um_tab.b_actf = dp; 288 else 289 um->um_tab.b_actl->b_forw = dp; 290 um->um_tab.b_actl = dp; 291 dp->b_active = 2; 292 } 293 out: 294 return; 295 } 296 297 rkstart(um) 298 register struct uba_ctlr *um; 299 { 300 register struct buf *bp, *dp; 301 register struct uba_device *ui; 302 register struct rkdevice *rkaddr; 303 struct rkst *st; 304 daddr_t bn; 305 int sn, tn, cmd; 306 307 loop: 308 if ((dp = um->um_tab.b_actf) == NULL) 309 return; 310 if ((bp = dp->b_actf) == NULL) { 311 um->um_tab.b_actf = dp->b_forw; 312 goto loop; 313 } 314 um->um_tab.b_active++; 315 ui = rkdinfo[dkunit(bp)]; 316 bn = dkblock(bp); 317 st = &rkst[ui->ui_type]; 318 sn = bn%st->nspc; 319 tn = sn/st->nsect; 320 sn %= st->nsect; 321 rkaddr = (struct rkdevice *)ui->ui_addr; 322 retry: 323 rkaddr->rkcs1 = RK_CCLR; 324 rkaddr->rkcs2 = ui->ui_slave; 325 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 326 rkwait(rkaddr); 327 if ((rkaddr->rkds&RKDS_SVAL) == 0) { 328 rknosval++; 329 goto nosval; 330 } 331 if (rkaddr->rkds&RKDS_PIP) { 332 rkpip++; 333 goto retry; 334 } 335 if ((rkaddr->rkds&RKDS_DREADY) != RKDS_DREADY) { 336 printf("rk%d: not ready", dkunit(bp)); 337 if ((rkaddr->rkds&RKDS_DREADY) != RKDS_DREADY) { 338 printf("\n"); 339 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 340 rkwait(rkaddr); 341 rkaddr->rkcs1 = RK_CCLR; 342 rkwait(rkaddr); 343 um->um_tab.b_active = 0; 344 um->um_tab.b_errcnt = 0; 345 dp->b_actf = bp->av_forw; 346 dp->b_active = 0; 347 bp->b_flags |= B_ERROR; 348 iodone(bp); 349 goto loop; 350 } 351 printf(" (came back!)\n"); 352 } 353 nosval: 354 rkaddr->rkcyl = bp->b_cylin; 355 rkcyl[ui->ui_unit] = bp->b_cylin; 356 rkaddr->rkda = (tn << 8) + sn; 357 rkaddr->rkwc = -bp->b_bcount / sizeof (short); 358 if (bp->b_flags & B_READ) 359 cmd = rktypes[ui->ui_type]|RK_IE|RK_READ|RK_GO; 360 else 361 cmd = rktypes[ui->ui_type]|RK_IE|RK_WRITE|RK_GO; 362 um->um_cmd = cmd; 363 (void) ubago(ui); 364 } 365 366 rkdgo(um) 367 register struct uba_ctlr *um; 368 { 369 register struct rkdevice *rkaddr = (struct rkdevice *)um->um_addr; 370 371 um->um_tab.b_active = 2; /* should now be 2 */ 372 rkaddr->rkba = um->um_ubinfo; 373 rkaddr->rkcs1 = um->um_cmd|((um->um_ubinfo>>8)&0x300); 374 } 375 376 rkintr(rk11) 377 int rk11; 378 { 379 register struct uba_ctlr *um = rkminfo[rk11]; 380 register struct uba_device *ui; 381 register struct rkdevice *rkaddr = (struct rkdevice *)um->um_addr; 382 register struct buf *bp, *dp; 383 int unit; 384 struct rk_softc *sc = &rk_softc[um->um_ctlr]; 385 int as = (rkaddr->rkatt >> 8) | sc->sc_softas; 386 387 sc->sc_wticks = 0; 388 sc->sc_softas = 0; 389 if (um->um_tab.b_active == 2 || sc->sc_recal) { 390 um->um_tab.b_active = 1; 391 dp = um->um_tab.b_actf; 392 bp = dp->b_actf; 393 ui = rkdinfo[dkunit(bp)]; 394 dk_busy &= ~(1 << ui->ui_dk); 395 #ifndef NOBADSECT 396 if (bp->b_flags&B_BAD) 397 if (rkecc(ui, CONT)) 398 return; 399 #endif 400 if (rkaddr->rkcs1 & RK_CERR) { 401 int recal; 402 u_short ds = rkaddr->rkds; 403 u_short cs2 = rkaddr->rkcs2; 404 u_short er = rkaddr->rker; 405 #ifdef RKDEBUG 406 if (rkdebug) { 407 printf("cs2=%b ds=%b er=%b\n", 408 cs2, RKCS2_BITS, ds, 409 RKDS_BITS, er, RKER_BITS); 410 } 411 #endif 412 if (er & RKER_WLE) { 413 printf("rk%d: write locked\n", dkunit(bp)); 414 bp->b_flags |= B_ERROR; 415 } else if (++um->um_tab.b_errcnt > 28 || 416 ds&RKDS_HARD || er&RKER_HARD || cs2&RKCS2_HARD) { 417 hard: 418 harderr(bp, "rk"); 419 printf("cs2=%b ds=%b er=%b\n", 420 cs2, RKCS2_BITS, ds, 421 RKDS_BITS, er, RKER_BITS); 422 bp->b_flags |= B_ERROR; 423 sc->sc_recal = 0; 424 } else if (er & RKER_BSE) { 425 #ifndef NOBADSECT 426 if (rkecc(ui, BSE)) 427 return; 428 else 429 #endif 430 goto hard; 431 } else { 432 if ((er & (RKER_DCK|RKER_ECH)) == RKER_DCK) { 433 if (rkecc(ui, ECC)) 434 return; 435 } else 436 um->um_tab.b_active = 0; 437 } 438 if (cs2&RKCS2_MDS) { 439 rkaddr->rkcs2 = RKCS2_SCLR; 440 goto retry; 441 } 442 recal = 0; 443 if (ds&RKDS_DROT || er&(RKER_OPI|RKER_SKI|RKER_UNS) || 444 (um->um_tab.b_errcnt&07) == 4) 445 recal = 1; 446 rkaddr->rkcs1 = RK_CCLR; 447 rkaddr->rkcs2 = ui->ui_slave; 448 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 449 rkwait(rkaddr); 450 if (recal && um->um_tab.b_active == 0) { 451 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_RECAL|RK_GO; 452 rkcyl[ui->ui_unit] = -1; 453 sc->sc_recal = 0; 454 goto nextrecal; 455 } 456 } 457 retry: 458 switch (sc->sc_recal) { 459 460 case 1: 461 rkaddr->rkcyl = bp->b_cylin; 462 rkcyl[ui->ui_unit] = bp->b_cylin; 463 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_SEEK|RK_GO; 464 goto nextrecal; 465 case 2: 466 if (um->um_tab.b_errcnt < 16 || 467 (bp->b_flags&B_READ) == 0) 468 goto donerecal; 469 rkaddr->rkatt = rk_offset[um->um_tab.b_errcnt & 017]; 470 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_OFFSET|RK_GO; 471 /* fall into ... */ 472 nextrecal: 473 sc->sc_recal++; 474 rkwait(rkaddr); 475 um->um_tab.b_active = 1; 476 return; 477 donerecal: 478 case 3: 479 sc->sc_recal = 0; 480 um->um_tab.b_active = 0; 481 break; 482 } 483 ubadone(um); 484 if (um->um_tab.b_active) { 485 um->um_tab.b_active = 0; 486 um->um_tab.b_errcnt = 0; 487 um->um_tab.b_actf = dp->b_forw; 488 dp->b_active = 0; 489 dp->b_errcnt = 0; 490 dp->b_actf = bp->av_forw; 491 bp->b_resid = -rkaddr->rkwc * sizeof(short); 492 iodone(bp); 493 if (dp->b_actf) 494 rkustart(ui); 495 } 496 as &= ~(1<<ui->ui_slave); 497 } 498 for (unit = 0; as; as >>= 1, unit++) 499 if (as & 1) { 500 ui = rkip[rk11][unit]; 501 if (ui) { 502 rkustart(rkip[rk11][unit]); 503 } else { 504 rkaddr->rkcs1 = RK_CCLR; 505 rkaddr->rkcs2 = unit; 506 rkaddr->rkcs1 = RK_DCLR|RK_GO; 507 rkwait(rkaddr); 508 rkaddr->rkcs1 = RK_CCLR; 509 } 510 } 511 if (um->um_tab.b_actf && um->um_tab.b_active == 0) 512 rkstart(um); 513 if (((rkaddr->rkcs1) & RK_IE) == 0) 514 rkaddr->rkcs1 = RK_IE; 515 } 516 517 rkwait(addr) 518 register struct rkdevice *addr; 519 { 520 521 while ((addr->rkcs1 & RK_CRDY) == 0) 522 ; 523 } 524 525 rkread(dev, uio) 526 dev_t dev; 527 struct uio *uio; 528 { 529 register int unit = minor(dev) >> 3; 530 531 if (unit >= NRK) 532 return (ENXIO); 533 return (physio(rkstrategy, &rrkbuf[unit], dev, B_READ, minphys, uio)); 534 } 535 536 rkwrite(dev, uio) 537 dev_t dev; 538 struct uio *uio; 539 { 540 register int unit = minor(dev) >> 3; 541 542 if (unit >= NRK) 543 return (ENXIO); 544 return (physio(rkstrategy, &rrkbuf[unit], dev, B_WRITE, minphys, uio)); 545 } 546 547 rkecc(ui, flag) 548 register struct uba_device *ui; 549 { 550 register struct rkdevice *rk = (struct rkdevice *)ui->ui_addr; 551 register struct buf *bp = rkutab[ui->ui_unit].b_actf; 552 register struct uba_ctlr *um = ui->ui_mi; 553 register struct rkst *st; 554 struct uba_regs *ubp = ui->ui_hd->uh_uba; 555 caddr_t addr; 556 int reg, npf, o, cmd, ubaddr; 557 int bn, cn, tn, sn; 558 559 #ifndef NOBADSECT 560 if (flag == CONT) 561 npf = bp->b_error; 562 else 563 #endif 564 npf = btop((rk->rkwc * sizeof(short)) + bp->b_bcount); 565 reg = btop(um->um_ubinfo&0x3ffff) + npf; 566 o = (int)bp->b_un.b_addr & PGOFSET; 567 bn = dkblock(bp); 568 st = &rkst[ui->ui_type]; 569 cn = bp->b_cylin; 570 sn = bn%st->nspc + npf; 571 tn = sn/st->nsect; 572 sn %= st->nsect; 573 cn += tn/st->ntrak; 574 tn %= st->ntrak; 575 ubapurge(um); 576 switch (flag) { 577 case ECC: 578 { 579 register int i; 580 int bit, byte, mask; 581 582 npf--; 583 reg--; 584 printf("rk%d%c: soft ecc sn%d\n", dkunit(bp), 585 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); 586 mask = rk->rkec2; 587 i = rk->rkec1 - 1; /* -1 makes 0 origin */ 588 bit = i&07; 589 i = (i&~07)>>3; 590 byte = i + o; 591 while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { 592 addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+ 593 (byte & PGOFSET); 594 putmemc(addr, getmemc(addr)^(mask<<bit)); 595 byte++; 596 i++; 597 bit -= 8; 598 } 599 if (rk->rkwc == 0) { 600 um->um_tab.b_active = 0; 601 return (0); 602 } 603 npf++; 604 reg++; 605 break; 606 } 607 608 #ifndef NOBADSECT 609 case BSE: 610 #ifdef RKBDEBUG 611 if (rkbdebug) 612 printf("rkecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 613 #endif 614 if ((bn = isbad(&rkbad[ui->ui_unit], cn, tn, sn)) < 0) 615 return(0); 616 bp->b_flags |= B_BAD; 617 bp->b_error = npf + 1; 618 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 619 cn = bn/st->nspc; 620 sn = bn%st->nspc; 621 tn = sn/st->nsect; 622 sn %= st->nsect; 623 #ifdef RKBDEBUG 624 if (rkbdebug) 625 printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); 626 #endif 627 rk->rkwc = -(512 / sizeof (short)); 628 break; 629 630 case CONT: 631 #ifdef RKBDEBUG 632 if (rkbdebug) 633 printf("rkecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 634 #endif 635 bp->b_flags &= ~B_BAD; 636 rk->rkwc = -((bp->b_bcount - (int)ptob(npf)) / sizeof (short)); 637 if (rk->rkwc == 0) { 638 um->um_tab.b_active = 0; 639 return (0); 640 } 641 break; 642 #endif 643 } 644 rk->rkcs1 = RK_CCLR; 645 rk->rkcs2 = ui->ui_slave; 646 rk->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 647 rkwait(rk); 648 rk->rkcyl = cn; 649 rk->rkda = (tn << 8) | sn; 650 ubaddr = (int)ptob(reg) + o; 651 rk->rkba = ubaddr; 652 cmd = (bp->b_flags&B_READ ? RK_READ : RK_WRITE)|RK_IE|RK_GO; 653 cmd |= (ubaddr >> 8) & 0x300; 654 cmd |= rktypes[ui->ui_type]; 655 rk->rkcs1 = cmd; 656 um->um_tab.b_active = 2; /* continuing */ 657 um->um_tab.b_errcnt = 0; /* error has been corrected */ 658 return (1); 659 } 660 661 rkreset(uban) 662 int uban; 663 { 664 register struct uba_ctlr *um; 665 register struct uba_device *ui; 666 register rk11, unit; 667 668 for (rk11 = 0; rk11 < NHK; rk11++) { 669 if ((um = rkminfo[rk11]) == 0 || um->um_ubanum != uban || 670 um->um_alive == 0) 671 continue; 672 printf(" hk%d", rk11); 673 um->um_tab.b_active = 0; 674 um->um_tab.b_actf = um->um_tab.b_actl = 0; 675 rk_softc[um->um_ctlr].sc_recal = 0; 676 rk_softc[um->um_ctlr].sc_wticks = 0; 677 if (um->um_ubinfo) { 678 printf("<%d>", (um->um_ubinfo>>28)&0xf); 679 ubadone(um); 680 } 681 for (unit = 0; unit < NRK; unit++) { 682 if ((ui = rkdinfo[unit]) == 0) 683 continue; 684 if (ui->ui_alive == 0 || ui->ui_mi != um) 685 continue; 686 rkutab[unit].b_active = 0; 687 (void) rkustart(ui); 688 } 689 (void) rkstart(um); 690 } 691 } 692 693 rkwatch() 694 { 695 register struct uba_ctlr *um; 696 register rk11, unit; 697 register struct rk_softc *sc; 698 699 timeout(rkwatch, (caddr_t)0, hz); 700 for (rk11 = 0; rk11 < NHK; rk11++) { 701 um = rkminfo[rk11]; 702 if (um == 0 || um->um_alive == 0) 703 continue; 704 sc = &rk_softc[rk11]; 705 if (um->um_tab.b_active == 0) { 706 for (unit = 0; unit < NRK; unit++) 707 if (rkutab[unit].b_active && 708 rkdinfo[unit]->ui_mi == um) 709 goto active; 710 sc->sc_wticks = 0; 711 continue; 712 } 713 active: 714 sc->sc_wticks++; 715 if (sc->sc_wticks >= 20) { 716 sc->sc_wticks = 0; 717 printf("hk%d: lost interrupt\n", rk11); 718 ubareset(um->um_ubanum); 719 } 720 } 721 } 722 723 #define DBSIZE 20 724 725 rkdump(dev) 726 dev_t dev; 727 { 728 struct rkdevice *rkaddr; 729 char *start; 730 int num, blk, unit; 731 struct size *sizes; 732 register struct uba_regs *uba; 733 register struct uba_device *ui; 734 register short *rp; 735 struct rkst *st; 736 737 unit = minor(dev) >> 3; 738 if (unit >= NRK) 739 return (ENXIO); 740 #define phys(cast, addr) ((cast)((int)addr & 0x7fffffff)) 741 ui = phys(struct uba_device *, rkdinfo[unit]); 742 if (ui->ui_alive == 0) 743 return (ENXIO); 744 uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba; 745 ubainit(uba); 746 rkaddr = (struct rkdevice *)ui->ui_physaddr; 747 num = maxfree; 748 start = 0; 749 rkaddr->rkcs1 = RK_CCLR; 750 rkaddr->rkcs2 = unit; 751 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO; 752 rkwait(rkaddr); 753 if ((rkaddr->rkds & RKDS_VV) == 0) { 754 rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_PACK|RK_GO; 755 rkwait(rkaddr); 756 } 757 st = &rkst[ui->ui_type]; 758 sizes = phys(struct size *, st->sizes); 759 if (dumplo < 0 || dumplo + num >= sizes[minor(dev)&07].nblocks) 760 return (EINVAL); 761 while (num > 0) { 762 register struct pte *io; 763 register int i; 764 int cn, sn, tn; 765 daddr_t bn; 766 767 blk = num > DBSIZE ? DBSIZE : num; 768 io = uba->uba_map; 769 for (i = 0; i < blk; i++) 770 *(int *)io++ = (btop(start)+i) | (1<<21) | UBAMR_MRV; 771 *(int *)io = 0; 772 bn = dumplo + btop(start); 773 cn = bn/st->nspc + sizes[minor(dev)&07].cyloff; 774 sn = bn%st->nspc; 775 tn = sn/st->nsect; 776 sn = sn%st->nsect; 777 rkaddr->rkcyl = cn; 778 rp = (short *) &rkaddr->rkda; 779 *rp = (tn << 8) + sn; 780 *--rp = 0; 781 *--rp = -blk*NBPG / sizeof (short); 782 *--rp = rktypes[ui->ui_type]|RK_GO|RK_WRITE; 783 rkwait(rkaddr); 784 if (rkaddr->rkcs1 & RK_CERR) 785 return (EIO); 786 start += blk*NBPG; 787 num -= blk; 788 } 789 return (0); 790 } 791 #endif 792