1 /* hp.c 4.45 82/02/08 */ 2 3 #ifdef HPDEBUG 4 int hpdebug; 5 #endif 6 #ifdef HPBDEBUG 7 int hpbdebug; 8 #endif 9 10 #include "hp.h" 11 #if NHP > 0 12 /* 13 * HP disk driver for RP0x+RMxx+ML11 14 * 15 * TODO: 16 * check RM80 skip sector handling when ECC's occur later 17 * check offset recovery handling 18 * see if DCLR and/or RELEASE set attention status 19 * print bits of mr && mr2 symbolically 20 */ 21 22 #include "../h/param.h" 23 #include "../h/systm.h" 24 #include "../h/dk.h" 25 #include "../h/buf.h" 26 #include "../h/conf.h" 27 #include "../h/dir.h" 28 #include "../h/user.h" 29 #include "../h/map.h" 30 #include "../h/pte.h" 31 #include "../h/mbareg.h" 32 #include "../h/mbavar.h" 33 #include "../h/mtpr.h" 34 #include "../h/vm.h" 35 #include "../h/cmap.h" 36 #include "../h/dkbad.h" 37 #include "../h/dkio.h" 38 39 #include "../h/hpreg.h" 40 41 /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ 42 struct size { 43 daddr_t nblocks; 44 int cyloff; 45 } hp6_sizes[8] = { 46 15884, 0, /* A=cyl 0 thru 37 */ 47 33440, 38, /* B=cyl 38 thru 117 */ 48 340670, 0, /* C=cyl 0 thru 814 */ 49 0, 0, 50 0, 0, 51 0, 0, 52 #ifndef NOBADSECT 53 291280, 118, /* G=cyl 118 thru 814 */ 54 #else 55 291346, 118, 56 #endif 57 0, 0, 58 }, rm3_sizes[8] = { 59 15884, 0, /* A=cyl 0 thru 99 */ 60 33440, 100, /* B=cyl 100 thru 309 */ 61 131680, 0, /* C=cyl 0 thru 822 */ 62 0, 0, 63 0, 0, 64 0, 0, 65 #ifndef NOBADSECT 66 81984, 310, /* G=cyl 310 thru 822 */ 67 #else 68 82080, 310, 69 #endif 70 0, 0, 71 }, rm5_sizes[8] = { 72 15884, 0, /* A=cyl 0 thru 26 */ 73 33440, 27, /* B=cyl 27 thru 81 */ 74 500384, 0, /* C=cyl 0 thru 822 */ 75 15884, 562, /* D=cyl 562 thru 588 */ 76 55936, 589, /* E=cyl 589 thru 680 */ 77 #ifndef NOBADSECT 78 86240, 681, /* F=cyl 681 thru 822 */ 79 158592, 562, /* G=cyl 562 thru 822 */ 80 #else 81 86336, 681, 82 158688, 562, 83 #endif 84 291346, 82, /* H=cyl 82 thru 561 */ 85 }, rm80_sizes[8] = { 86 15884, 0, /* A=cyl 0 thru 36 */ 87 33440, 37, /* B=cyl 37 thru 114 */ 88 242606, 0, /* C=cyl 0 thru 558 */ 89 0, 0, 90 0, 0, 91 0, 0, 92 82080, 115, /* G=cyl 115 thru 304 */ 93 110143, 305, /* H=cyl 305 thru 558 */ 94 }, hp7_sizes[8] = { 95 15844, 0, /* A=cyl 0 thru 9 */ 96 64000, 10, /* B=cyl 10 thru 49 */ 97 1008000,0, /* C=cyl 0 thru 629 */ 98 15884, 330, /* D=cyl 330 thru 339 */ 99 256000, 340, /* E=cyl 340 thru 499 */ 100 207850, 500, /* F=cyl 500 thru 629 */ 101 479850, 330, /* G=cyl 330 thru 629 */ 102 448000, 50, /* H=cyl 50 thru 329 */ 103 }; 104 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ 105 106 #define _hpSDIST 2 107 #define _hpRDIST 3 108 109 int hpSDIST = _hpSDIST; 110 int hpRDIST = _hpRDIST; 111 112 short hptypes[] = 113 { MBDT_RM03, MBDT_RM05, MBDT_RP06, MBDT_RM80, MBDT_RP05, MBDT_RP07, 114 MBDT_ML11A, MBDT_ML11B, 0 }; 115 struct mba_device *hpinfo[NHP]; 116 int hpattach(),hpustart(),hpstart(),hpdtint(); 117 struct mba_driver hpdriver = 118 { hpattach, 0, hpustart, hpstart, hpdtint, 0, 119 hptypes, "hp", 0, hpinfo }; 120 121 struct hpst { 122 short nsect; 123 short ntrak; 124 short nspc; 125 short ncyl; 126 struct size *sizes; 127 } hpst[] = { 128 32, 5, 32*5, 823, rm3_sizes, /* RM03 */ 129 32, 19, 32*19, 823, rm5_sizes, /* RM05 */ 130 22, 19, 22*19, 815, hp6_sizes, /* RP06 */ 131 31, 14, 31*14, 559, rm80_sizes, /* RM80 */ 132 22, 19, 22*19, 411, hp6_sizes, /* RP05 */ 133 50, 32, 50*32, 630, hp7_sizes, /* RP07 */ 134 1, 1, 1, 1, 0, /* ML11A */ 135 1, 1, 1, 1, 0, /* ML11B */ 136 }; 137 138 u_char hp_offset[16] = { 139 HPOF_P400, HPOF_M400, HPOF_P400, HPOF_M400, 140 HPOF_P800, HPOF_M800, HPOF_P800, HPOF_M800, 141 HPOF_P1200, HPOF_M1200, HPOF_P1200, HPOF_M1200, 142 0, 0, 0, 0, 143 }; 144 145 struct buf rhpbuf[NHP]; 146 #ifndef NOBADSECT 147 struct buf bhpbuf[NHP]; 148 struct dkbad hpbad[NHP]; 149 #endif 150 /* SHOULD CONSOLIDATE ALL THIS STUFF INTO A STRUCTURE */ 151 char hpinit[NHP]; 152 char hprecal[NHP]; 153 char hphdr[NHP]; 154 daddr_t mlsize[NHP]; 155 156 #define b_cylin b_resid 157 158 /* #define ML11 0 to remove ML11 support */ 159 #define ML11 (hptypes[mi->mi_type] == MBDT_ML11A) 160 #define RP06 (hptypes[mi->mi_type] <= MBDT_RP06) 161 #define RM80 (hptypes[mi->mi_type] == MBDT_RM80) 162 163 #ifdef INTRLVE 164 daddr_t dkblock(); 165 #endif 166 167 int hpseek; 168 169 /*ARGSUSED*/ 170 hpattach(mi, slave) 171 struct mba_device *mi; 172 { 173 if (hptypes[mi->mi_type] == MBDT_ML11B) 174 mi->mi_type--; /* A CHEAT - ML11B D.T. SHOULD == ML11A */ 175 if (ML11) { 176 register struct hpdevice *hpaddr = 177 (struct hpdevice *)mi->mi_drv; 178 register int trt, sz; 179 180 sz = hpaddr->hpmr & HPMR_SZ; 181 if ((hpaddr->hpmr & HPMR_ARRTYP) == 0) 182 sz >>= 2; 183 mlsize[mi->mi_unit] = sz; 184 if (mi->mi_dk >= 0) { 185 trt = (hpaddr->hpmr & HPMR_TRT) >> 8; 186 dk_mspw[mi->mi_dk] = 1.0 / (1<<(20-trt)); 187 } 188 } else if (mi->mi_dk >= 0) { 189 register struct hpst *st = &hpst[mi->mi_type]; 190 191 dk_mspw[mi->mi_dk] = 1.0 / 60 / (st->nsect * 256); 192 } 193 } 194 195 hpstrategy(bp) 196 register struct buf *bp; 197 { 198 register struct mba_device *mi; 199 register struct hpst *st; 200 register int unit; 201 long sz, bn; 202 int xunit = minor(bp->b_dev) & 07; 203 int s; 204 205 sz = bp->b_bcount; 206 sz = (sz+511) >> 9; 207 unit = dkunit(bp); 208 if (unit >= NHP) 209 goto bad; 210 mi = hpinfo[unit]; 211 if (mi == 0 || mi->mi_alive == 0) 212 goto bad; 213 st = &hpst[mi->mi_type]; 214 if (ML11) { 215 if (bp->b_blkno < 0 || 216 dkblock(bp)+sz > mlsize[mi->mi_unit]) 217 goto bad; 218 bp->b_cylin = 0; 219 } else { 220 if (bp->b_blkno < 0 || 221 (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) 222 goto bad; 223 bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; 224 } 225 s = spl5(); 226 disksort(&mi->mi_tab, bp); 227 if (mi->mi_tab.b_active == 0) 228 mbustart(mi); 229 splx(s); 230 return; 231 232 bad: 233 bp->b_flags |= B_ERROR; 234 iodone(bp); 235 return; 236 } 237 238 hpustart(mi) 239 register struct mba_device *mi; 240 { 241 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 242 register struct buf *bp = mi->mi_tab.b_actf; 243 register struct hpst *st = &hpst[mi->mi_type]; 244 daddr_t bn; 245 int sn, dist; 246 247 hpaddr->hpcs1 = 0; 248 if ((hpaddr->hpcs1&HP_DVA) == 0) 249 return (MBU_BUSY); 250 if ((hpaddr->hpds & HPDS_VV) == 0 || hpinit[mi->mi_unit] == 0) { 251 #ifndef NOBADSECT 252 struct buf *bbp = &bhpbuf[mi->mi_unit]; 253 #endif 254 255 hpinit[mi->mi_unit] = 1; 256 hpaddr->hpcs1 = HP_DCLR|HP_GO; 257 if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive)) 258 printf("DCLR attn\n"); 259 hpaddr->hpcs1 = HP_PRESET|HP_GO; 260 if (!ML11) 261 hpaddr->hpof = HPOF_FMT22; 262 mbclrattn(mi); 263 #ifndef NOBADSECT 264 if (!ML11) { 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)&hpbad[mi->mi_unit]; 269 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 270 bbp->b_cylin = st->ncyl - 1; 271 mi->mi_tab.b_actf = bbp; 272 bbp->av_forw = bp; 273 bp = bbp; 274 } 275 #endif 276 } 277 if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1) 278 return (MBU_DODATA); 279 if (ML11) 280 return (MBU_DODATA); 281 if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY) 282 return (MBU_DODATA); 283 bn = dkblock(bp); 284 sn = bn%st->nspc; 285 sn = (sn+st->nsect-hpSDIST)%st->nsect; 286 if (bp->b_cylin == (hpaddr->hpdc & 0xffff)) { 287 if (hpseek) 288 return (MBU_DODATA); 289 dist = ((hpaddr->hpla & 0xffff)>>6) - st->nsect + 1; 290 if (dist < 0) 291 dist += st->nsect; 292 if (dist > st->nsect - hpRDIST) 293 return (MBU_DODATA); 294 } else 295 hpaddr->hpdc = bp->b_cylin; 296 if (hpseek) 297 hpaddr->hpcs1 = HP_SEEK|HP_GO; 298 else { 299 hpaddr->hpda = sn; 300 hpaddr->hpcs1 = HP_SEARCH|HP_GO; 301 } 302 return (MBU_STARTED); 303 } 304 305 hpstart(mi) 306 register struct mba_device *mi; 307 { 308 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 309 register struct buf *bp = mi->mi_tab.b_actf; 310 register struct hpst *st = &hpst[mi->mi_type]; 311 daddr_t bn; 312 int sn, tn; 313 314 bn = dkblock(bp); 315 if (ML11) 316 hpaddr->hpda = bn; 317 else { 318 sn = bn%st->nspc; 319 tn = sn/st->nsect; 320 sn %= st->nsect; 321 hpaddr->hpdc = bp->b_cylin; 322 hpaddr->hpda = (tn << 8) + sn; 323 } 324 if (hphdr[mi->mi_unit]) { 325 if (bp->b_flags & B_READ) 326 return (HP_RHDR|HP_GO); 327 else 328 return (HP_WHDR|HP_GO); 329 } 330 return (0); 331 } 332 333 hpdtint(mi, mbsr) 334 register struct mba_device *mi; 335 int mbsr; 336 { 337 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 338 register struct buf *bp = mi->mi_tab.b_actf; 339 int retry = 0; 340 341 #ifndef NOBADSECT 342 if (bp->b_flags&B_BAD) { 343 if (hpecc(mi, CONT)) 344 return(MBD_RESTARTED); 345 } 346 #endif 347 if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) { 348 #ifdef HPDEBUG 349 if (hpdebug) { 350 int dc = hpaddr->hpdc, da = hpaddr->hpda; 351 352 printf("hperr: bp %x cyl %d blk %d as %o ", 353 bp, bp->b_cylin, bp->b_blkno, 354 hpaddr->hpas&0xff); 355 printf("dc %x da %x\n",dc&0xffff, da&0xffff); 356 printf("errcnt %d ", mi->mi_tab.b_errcnt); 357 printf("mbsr=%b ", mbsr, mbsr_bits); 358 printf("er1=%b er2=%b\n", 359 hpaddr->hper1, HPER1_BITS, 360 hpaddr->hper2, HPER2_BITS); 361 DELAY(1000000); 362 } 363 #endif 364 if (hpaddr->hper1&HPER1_WLE) { 365 printf("hp%d: write locked\n", dkunit(bp)); 366 bp->b_flags |= B_ERROR; 367 } else if ((hpaddr->hper1&0xffff) == HPER1_FER && RP06 && 368 hphdr[mi->mi_unit] == 0) { 369 #ifndef NOBADSECT 370 if (hpecc(mi, BSE)) 371 return(MBD_RESTARTED); 372 else 373 #endif 374 goto hard; 375 } else if (++mi->mi_tab.b_errcnt > 27 || 376 mbsr & MBSR_HARD || 377 hpaddr->hper1 & HPER1_HARD || 378 hphdr[mi->mi_unit] || 379 (!ML11 && (hpaddr->hper2 & HPER2_HARD))) { 380 hard: 381 harderr(bp, "hp"); 382 if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC))) 383 printf("mbsr=%b ", mbsr, mbsr_bits); 384 printf("er1=%b er2=%b", 385 hpaddr->hper1, HPER1_BITS, 386 hpaddr->hper2, HPER2_BITS); 387 if (hpaddr->hpmr) 388 printf(" mr=%o", hpaddr->hpmr&0xffff); 389 if (hpaddr->hpmr2) 390 printf(" mr2=%o", hpaddr->hpmr2&0xffff); 391 printf("\n"); 392 bp->b_flags |= B_ERROR; 393 hprecal[mi->mi_unit] = 0; 394 } else if ((hpaddr->hper2 & HPER2_BSE) && !ML11) { 395 #ifndef NOBADSECT 396 if (hpecc(mi, BSE)) 397 return(MBD_RESTARTED); 398 else 399 #endif 400 goto hard; 401 } else if (RM80 && hpaddr->hper2&HPER2_SSE) { 402 (void) hpecc(mi, SSE); 403 return (MBD_RESTARTED); 404 } else if ((hpaddr->hper1&(HPER1_DCK|HPER1_ECH))==HPER1_DCK) { 405 if (hpecc(mi, ECC)) 406 return (MBD_RESTARTED); 407 /* else done */ 408 } else 409 retry = 1; 410 hpaddr->hpcs1 = HP_DCLR|HP_GO; 411 if (ML11) { 412 if (mi->mi_tab.b_errcnt >= 16) 413 goto hard; 414 } else if ((mi->mi_tab.b_errcnt&07) == 4) { 415 hpaddr->hpcs1 = HP_RECAL|HP_GO; 416 hprecal[mi->mi_unit] = 1; 417 return(MBD_RESTARTED); 418 } 419 if (retry) 420 return (MBD_RETRY); 421 } 422 #ifdef HPDEBUG 423 else 424 if (hpdebug && hprecal[mi->mi_unit]) { 425 printf("recal %d ", hprecal[mi->mi_unit]); 426 printf("errcnt %d\n", mi->mi_tab.b_errcnt); 427 printf("mbsr=%b ", mbsr, mbsr_bits); 428 printf("er1=%b er2=%b\n", 429 hpaddr->hper1, HPER1_BITS, 430 hpaddr->hper2, HPER2_BITS); 431 } 432 #endif 433 switch (hprecal[mi->mi_unit]) { 434 435 case 1: 436 hpaddr->hpdc = bp->b_cylin; 437 hpaddr->hpcs1 = HP_SEEK|HP_GO; 438 hprecal[mi->mi_unit]++; 439 return (MBD_RESTARTED); 440 case 2: 441 if (mi->mi_tab.b_errcnt < 16 || 442 (bp->b_flags & B_READ) == 0) 443 goto donerecal; 444 hpaddr->hpof = hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22; 445 hpaddr->hpcs1 = HP_OFFSET|HP_GO; 446 hprecal[mi->mi_unit]++; 447 return (MBD_RESTARTED); 448 donerecal: 449 case 3: 450 hprecal[mi->mi_unit] = 0; 451 return (MBD_RETRY); 452 } 453 hphdr[mi->mi_unit] = 0; 454 bp->b_resid = -(mi->mi_mba->mba_bcr) & 0xffff; 455 if (mi->mi_tab.b_errcnt >= 16) { 456 /* 457 * This is fast and occurs rarely; we don't 458 * bother with interrupts. 459 */ 460 hpaddr->hpcs1 = HP_RTC|HP_GO; 461 while (hpaddr->hpds & HPDS_PIP) 462 ; 463 mbclrattn(mi); 464 } 465 if (!ML11) { 466 hpaddr->hpof = HPOF_FMT22; 467 hpaddr->hpcs1 = HP_RELEASE|HP_GO; 468 } 469 return (MBD_DONE); 470 } 471 472 hpread(dev) 473 dev_t dev; 474 { 475 register int unit = minor(dev) >> 3; 476 477 if (unit >= NHP) 478 u.u_error = ENXIO; 479 else 480 physio(hpstrategy, &rhpbuf[unit], dev, B_READ, minphys); 481 } 482 483 hpwrite(dev) 484 dev_t dev; 485 { 486 register int unit = minor(dev) >> 3; 487 488 if (unit >= NHP) 489 u.u_error = ENXIO; 490 else 491 physio(hpstrategy, &rhpbuf[unit], dev, B_WRITE, minphys); 492 } 493 494 /*ARGSUSED*/ 495 hpioctl(dev, cmd, addr, flag) 496 dev_t dev; 497 int cmd; 498 caddr_t addr; 499 int flag; 500 { 501 502 switch (cmd) { 503 case DKIOCHDR: /* do header read/write */ 504 hphdr[minor(dev)>>3] = 1; 505 return; 506 507 default: 508 u.u_error = ENXIO; 509 } 510 } 511 512 hpecc(mi, flag) 513 register struct mba_device *mi; 514 int flag; 515 { 516 register struct mba_regs *mbp = mi->mi_mba; 517 register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv; 518 register struct buf *bp = mi->mi_tab.b_actf; 519 register struct hpst *st = &hpst[mi->mi_type]; 520 int npf, o; 521 int bn, cn, tn, sn; 522 int bcr; 523 524 bcr = mbp->mba_bcr & 0xffff; 525 if (bcr) 526 bcr |= 0xffff0000; /* sxt */ 527 #ifndef NOBADSECT 528 if (flag == CONT) 529 npf = bp->b_error; 530 else 531 #endif 532 npf = btop(bcr + bp->b_bcount); 533 o = (int)bp->b_un.b_addr & PGOFSET; 534 bn = dkblock(bp); 535 cn = bp->b_cylin; 536 sn = bn%(st->nspc) + npf; 537 tn = sn/st->nsect; 538 sn %= st->nsect; 539 cn += tn/st->ntrak; 540 tn %= st->ntrak; 541 switch (flag) { 542 case ECC: 543 { 544 register int i; 545 caddr_t addr; 546 struct pte mpte; 547 int bit, byte, mask; 548 549 npf--; /* because block in error is previous block */ 550 printf("hp%d%c: soft ecc sn%d\n", dkunit(bp), 551 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); 552 mask = rp->hpec2&0xffff; 553 i = (rp->hpec1&0xffff) - 1; /* -1 makes 0 origin */ 554 bit = i&07; 555 i = (i&~07)>>3; 556 byte = i + o; 557 while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { 558 mpte = mbp->mba_map[npf+btop(byte)]; 559 addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET); 560 putmemc(addr, getmemc(addr)^(mask<<bit)); 561 byte++; 562 i++; 563 bit -= 8; 564 } 565 if (bcr == 0) 566 return (0); 567 npf++; 568 break; 569 } 570 571 case SSE: 572 rp->hpof |= HPOF_SSEI; 573 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 574 break; 575 576 #ifndef NOBADSECT 577 case BSE: 578 #ifdef HPBDEBUG 579 if (hpbdebug) 580 printf("hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 581 #endif 582 if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0) 583 return(0); 584 bp->b_flags |= B_BAD; 585 bp->b_error = npf + 1; 586 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 587 cn = bn/st->nspc; 588 sn = bn%st->nspc; 589 tn = sn/st->nsect; 590 sn %= st->nsect; 591 mbp->mba_bcr = -512; 592 #ifdef HPBDEBUG 593 if (hpbdebug) 594 printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); 595 #endif 596 break; 597 598 case CONT: 599 #ifdef HPBDEBUG 600 if (hpbdebug) 601 printf("hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 602 #endif 603 npf = bp->b_error; 604 bp->b_flags &= ~B_BAD; 605 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 606 if ((mbp->mba_bcr & 0xffff) == 0) 607 return(0); 608 break; 609 #endif 610 } 611 rp->hpcs1 = HP_DCLR|HP_GO; 612 if (rp->hpof&HPOF_SSEI) 613 sn++; 614 rp->hpdc = cn; 615 rp->hpda = (tn<<8) + sn; 616 mbp->mba_sr = -1; 617 mbp->mba_var = (int)ptob(npf) + o; 618 rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO; 619 mi->mi_tab.b_errcnt = 0; /* error has been corrected */ 620 return (1); 621 } 622 623 #define DBSIZE 20 624 625 hpdump(dev) 626 dev_t dev; 627 { 628 register struct mba_device *mi; 629 register struct mba_regs *mba; 630 struct hpdevice *hpaddr; 631 char *start; 632 int num, unit; 633 register struct hpst *st; 634 635 num = maxfree; 636 start = 0; 637 unit = minor(dev) >> 3; 638 if (unit >= NHP) 639 return (ENXIO); 640 #define phys(a,b) ((b)((int)(a)&0x7fffffff)) 641 mi = phys(hpinfo[unit],struct mba_device *); 642 if (mi == 0 || mi->mi_alive == 0) 643 return (ENXIO); 644 mba = phys(mi->mi_hd, struct mba_hd *)->mh_physmba; 645 mba->mba_cr = MBCR_INIT; 646 hpaddr = (struct hpdevice *)&mba->mba_drv[mi->mi_drive]; 647 if ((hpaddr->hpds & HPDS_VV) == 0) { 648 hpaddr->hpcs1 = HP_DCLR|HP_GO; 649 hpaddr->hpcs1 = HP_PRESET|HP_GO; 650 hpaddr->hpof = HPOF_FMT22; 651 } 652 st = &hpst[mi->mi_type]; 653 if (dumplo < 0 || dumplo + num >= st->sizes[minor(dev)&07].nblocks) 654 return (EINVAL); 655 while (num > 0) { 656 register struct pte *hpte = mba->mba_map; 657 register int i; 658 int blk, cn, sn, tn; 659 daddr_t bn; 660 661 blk = num > DBSIZE ? DBSIZE : num; 662 bn = dumplo + btop(start); 663 cn = bn/st->nspc + st->sizes[minor(dev)&07].cyloff; 664 sn = bn%st->nspc; 665 tn = sn/st->nsect; 666 sn = sn%st->nsect; 667 hpaddr->hpdc = cn; 668 hpaddr->hpda = (tn << 8) + sn; 669 for (i = 0; i < blk; i++) 670 *(int *)hpte++ = (btop(start)+i) | PG_V; 671 mba->mba_sr = -1; 672 mba->mba_bcr = -(blk*NBPG); 673 mba->mba_var = 0; 674 hpaddr->hpcs1 = HP_WCOM | HP_GO; 675 while ((hpaddr->hpds & HPDS_DRY) == 0) 676 ; 677 if (hpaddr->hpds&HPDS_ERR) 678 return (EIO); 679 start += blk*NBPG; 680 num -= blk; 681 } 682 return (0); 683 } 684 #endif 685