1 /* hp.c 4.43 82/01/17 */ 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 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 38 #include "../h/hpreg.h" 39 40 /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ 41 struct size { 42 daddr_t nblocks; 43 int cyloff; 44 } hp6_sizes[8] = { 45 15884, 0, /* A=cyl 0 thru 37 */ 46 33440, 38, /* B=cyl 38 thru 117 */ 47 340670, 0, /* C=cyl 0 thru 814 */ 48 0, 0, 49 0, 0, 50 0, 0, 51 #ifndef NOBADSECT 52 291280, 118, /* G=cyl 118 thru 814 */ 53 #else 54 291346, 118, 55 #endif 56 0, 0, 57 }, rm3_sizes[8] = { 58 15884, 0, /* A=cyl 0 thru 99 */ 59 33440, 100, /* B=cyl 100 thru 309 */ 60 131680, 0, /* C=cyl 0 thru 822 */ 61 0, 0, 62 0, 0, 63 0, 0, 64 #ifndef NOBADSECT 65 81984, 310, /* G=cyl 310 thru 822 */ 66 #else 67 82080, 310, 68 #endif 69 0, 0, 70 }, rm5_sizes[8] = { 71 15884, 0, /* A=cyl 0 thru 26 */ 72 33440, 27, /* B=cyl 27 thru 81 */ 73 500384, 0, /* C=cyl 0 thru 822 */ 74 15884, 562, /* D=cyl 562 thru 588 */ 75 55936, 589, /* E=cyl 589 thru 680 */ 76 #ifndef NOBADSECT 77 86240, 681, /* F=cyl 681 thru 822 */ 78 158592, 562, /* G=cyl 562 thru 822 */ 79 #else 80 86636, 681, 81 158688, 562, 82 #endif 83 291346, 82, /* H=cyl 82 thru 561 */ 84 }, rm80_sizes[8] = { 85 15884, 0, /* A=cyl 0 thru 36 */ 86 33440, 37, /* B=cyl 37 thru 114 */ 87 242606, 0, /* C=cyl 0 thru 558 */ 88 0, 0, 89 0, 0, 90 0, 0, 91 82080, 115, /* G=cyl 115 thru 304 */ 92 110143, 305, /* H=cyl 305 thru 558 */ 93 }, hp7_sizes[8] = { 94 15844, 0, /* A=cyl 0 thru 9 */ 95 64000, 10, /* B=cyl 10 thru 49 */ 96 1008000,0, /* C=cyl 0 thru 629 */ 97 15884, 330, /* D=cyl 330 thru 339 */ 98 256000, 340, /* E=cyl 340 thru 499 */ 99 207850, 500, /* F=cyl 500 thru 629 */ 100 479850, 330, /* G=cyl 330 thru 629 */ 101 448000, 50, /* H=cyl 50 thru 329 */ 102 }; 103 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ 104 105 #define _hpSDIST 2 106 #define _hpRDIST 3 107 108 int hpSDIST = _hpSDIST; 109 int hpRDIST = _hpRDIST; 110 111 short hptypes[] = 112 { MBDT_RM03, MBDT_RM05, MBDT_RP06, MBDT_RM80, MBDT_RP05, MBDT_RP07, 0 }; 113 struct mba_device *hpinfo[NHP]; 114 int hpattach(),hpustart(),hpstart(),hpdtint(); 115 struct mba_driver hpdriver = 116 { hpattach, 0, hpustart, hpstart, hpdtint, 0, 117 hptypes, "hp", 0, hpinfo }; 118 119 struct hpst { 120 short nsect; 121 short ntrak; 122 short nspc; 123 short ncyl; 124 struct size *sizes; 125 } hpst[] = { 126 32, 5, 32*5, 823, rm3_sizes, /* RM03 */ 127 32, 19, 32*19, 823, rm5_sizes, /* RM05 */ 128 22, 19, 22*19, 815, hp6_sizes, /* RP06 */ 129 31, 14, 31*14, 559, rm80_sizes, /* RM80 */ 130 22, 19, 22*19, 411, hp6_sizes, /* RP05 */ 131 50, 32, 50*32, 630, hp7_sizes, /* RP07 */ 132 }; 133 134 u_char hp_offset[16] = { 135 HPOF_P400, HPOF_M400, HPOF_P400, HPOF_M400, 136 HPOF_P800, HPOF_M800, HPOF_P800, HPOF_M800, 137 HPOF_P1200, HPOF_M1200, HPOF_P1200, HPOF_M1200, 138 0, 0, 0, 0, 139 }; 140 141 struct buf rhpbuf[NHP]; 142 #ifndef NOBADSECT 143 struct buf bhpbuf[NHP]; 144 struct dkbad hpbad[NHP]; 145 #endif 146 char hpinit[NHP]; 147 char hprecal[NHP]; 148 149 #define b_cylin b_resid 150 151 #ifdef INTRLVE 152 daddr_t dkblock(); 153 #endif 154 155 int hpseek; 156 157 /*ARGSUSED*/ 158 hpattach(mi, slave) 159 struct mba_device *mi; 160 { 161 register struct hpst *st = &hpst[mi->mi_type]; 162 163 if (mi->mi_dk >= 0) 164 dk_mspw[mi->mi_dk] = 1.0 / 60 / (st->nsect * 256); 165 } 166 167 hpstrategy(bp) 168 register struct buf *bp; 169 { 170 register struct mba_device *mi; 171 register struct hpst *st; 172 register int unit; 173 long sz, bn; 174 int xunit = minor(bp->b_dev) & 07; 175 int s; 176 177 sz = bp->b_bcount; 178 sz = (sz+511) >> 9; 179 unit = dkunit(bp); 180 if (unit >= NHP) 181 goto bad; 182 mi = hpinfo[unit]; 183 if (mi == 0 || mi->mi_alive == 0) 184 goto bad; 185 st = &hpst[mi->mi_type]; 186 if (bp->b_blkno < 0 || 187 (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) 188 goto bad; 189 bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; 190 s = spl5(); 191 disksort(&mi->mi_tab, bp); 192 if (mi->mi_tab.b_active == 0) 193 mbustart(mi); 194 splx(s); 195 return; 196 197 bad: 198 bp->b_flags |= B_ERROR; 199 iodone(bp); 200 return; 201 } 202 203 hpustart(mi) 204 register struct mba_device *mi; 205 { 206 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 207 register struct buf *bp = mi->mi_tab.b_actf; 208 register struct hpst *st = &hpst[mi->mi_type]; 209 daddr_t bn; 210 int sn, dist; 211 212 hpaddr->hpcs1 = 0; 213 if ((hpaddr->hpcs1&HP_DVA) == 0) 214 return (MBU_BUSY); 215 if ((hpaddr->hpds & HPDS_VV) == 0 || hpinit[mi->mi_unit] == 0) { 216 #ifndef NOBADSECT 217 struct buf *bbp = &bhpbuf[mi->mi_unit]; 218 #endif 219 220 hpinit[mi->mi_unit] = 1; 221 hpaddr->hpcs1 = HP_DCLR|HP_GO; 222 if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive)) 223 printf("DCLR attn\n"); 224 hpaddr->hpcs1 = HP_PRESET|HP_GO; 225 hpaddr->hpof = HPOF_FMT22; 226 mbclrattn(mi); 227 #ifndef NOBADSECT 228 bbp->b_flags = B_READ|B_BUSY; 229 bbp->b_dev = bp->b_dev; 230 bbp->b_bcount = 512; 231 bbp->b_un.b_addr = (caddr_t)&hpbad[mi->mi_unit]; 232 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 233 bbp->b_cylin = st->ncyl - 1; 234 mi->mi_tab.b_actf = bbp; 235 bbp->av_forw = bp; 236 bp = bbp; 237 #endif 238 } 239 if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1) 240 return (MBU_DODATA); 241 if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY) 242 return (MBU_DODATA); 243 bn = dkblock(bp); 244 sn = bn%st->nspc; 245 sn = (sn+st->nsect-hpSDIST)%st->nsect; 246 if (bp->b_cylin == (hpaddr->hpdc & 0xffff)) { 247 if (hpseek) 248 return (MBU_DODATA); 249 dist = ((hpaddr->hpla & 0xffff)>>6) - st->nsect + 1; 250 if (dist < 0) 251 dist += st->nsect; 252 if (dist > st->nsect - hpRDIST) 253 return (MBU_DODATA); 254 } else 255 hpaddr->hpdc = bp->b_cylin; 256 if (hpseek) 257 hpaddr->hpcs1 = HP_SEEK|HP_GO; 258 else { 259 hpaddr->hpda = sn; 260 hpaddr->hpcs1 = HP_SEARCH|HP_GO; 261 } 262 return (MBU_STARTED); 263 } 264 265 hpstart(mi) 266 register struct mba_device *mi; 267 { 268 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 269 register struct buf *bp = mi->mi_tab.b_actf; 270 register struct hpst *st = &hpst[mi->mi_type]; 271 daddr_t bn; 272 int sn, tn; 273 274 bn = dkblock(bp); 275 sn = bn%st->nspc; 276 tn = sn/st->nsect; 277 sn %= st->nsect; 278 hpaddr->hpdc = bp->b_cylin; 279 hpaddr->hpda = (tn << 8) + sn; 280 return(0); 281 } 282 283 hpdtint(mi, mbsr) 284 register struct mba_device *mi; 285 int mbsr; 286 { 287 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 288 register struct buf *bp = mi->mi_tab.b_actf; 289 int retry = 0; 290 291 #ifndef NOBADSECT 292 if (bp->b_flags&B_BAD) { 293 if (hpecc(mi, CONT)) 294 return(MBD_RESTARTED); 295 } 296 #endif 297 if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) { 298 #ifdef HPDEBUG 299 if (hpdebug) { 300 int dc = hpaddr->hpdc, da = hpaddr->hpda; 301 302 printf("hperr: bp %x cyl %d blk %d as %o ", 303 bp, bp->b_cylin, bp->b_blkno, 304 hpaddr->hpas&0xff); 305 printf("dc %x da %x\n",dc&0xffff, da&0xffff); 306 printf("errcnt %d ", mi->mi_tab.b_errcnt); 307 printf("mbsr=%b ", mbsr, mbsr_bits); 308 printf("er1=%b er2=%b\n", 309 hpaddr->hper1, HPER1_BITS, 310 hpaddr->hper2, HPER2_BITS); 311 DELAY(1000000); 312 } 313 #endif 314 if (hpaddr->hper1&HPER1_WLE) { 315 printf("hp%d: write locked\n", dkunit(bp)); 316 bp->b_flags |= B_ERROR; 317 } else if (++mi->mi_tab.b_errcnt > 27 || 318 mbsr & MBSR_HARD || 319 hpaddr->hper1 & HPER1_HARD || 320 hpaddr->hper2 & HPER2_HARD) { 321 hard: 322 harderr(bp, "hp"); 323 if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC))) 324 printf("mbsr=%b ", mbsr, mbsr_bits); 325 printf("er1=%b er2=%b", 326 hpaddr->hper1, HPER1_BITS, 327 hpaddr->hper2, HPER2_BITS); 328 if (hpaddr->hpmr) 329 printf(" mr=%o", hpaddr->hpmr&0xffff); 330 if (hpaddr->hpmr2) 331 printf(" mr2=%o", hpaddr->hpmr2&0xffff); 332 printf("\n"); 333 bp->b_flags |= B_ERROR; 334 hprecal[mi->mi_unit] = 0; 335 } else if (hpaddr->hper2 & HPER2_BSE) { 336 #ifndef NOBADSECT 337 if (hpecc(mi, BSE)) 338 return(MBD_RESTARTED); 339 else 340 #endif 341 goto hard; 342 } else if (hptypes[mi->mi_type] == MBDT_RM80 && 343 hpaddr->hper2&HPER2_SSE) { 344 (void) hpecc(mi, SSE); 345 return (MBD_RESTARTED); 346 } else if ((hpaddr->hper1&(HPER1_DCK|HPER1_ECH))==HPER1_DCK) { 347 if (hpecc(mi, ECC)) 348 return (MBD_RESTARTED); 349 /* else done */ 350 } else 351 retry = 1; 352 hpaddr->hpcs1 = HP_DCLR|HP_GO; 353 if ((mi->mi_tab.b_errcnt&07) == 4) { 354 hpaddr->hpcs1 = HP_RECAL|HP_GO; 355 hprecal[mi->mi_unit] = 1; 356 return(MBD_RESTARTED); 357 } 358 if (retry) 359 return (MBD_RETRY); 360 } 361 #ifdef HPDEBUG 362 else 363 if (hpdebug && hprecal[mi->mi_unit]) { 364 printf("recal %d ", hprecal[mi->mi_unit]); 365 printf("errcnt %d\n", mi->mi_tab.b_errcnt); 366 printf("mbsr=%b ", mbsr, mbsr_bits); 367 printf("er1=%b er2=%b\n", 368 hpaddr->hper1, HPER1_BITS, 369 hpaddr->hper2, HPER2_BITS); 370 } 371 #endif 372 switch (hprecal[mi->mi_unit]) { 373 374 case 1: 375 hpaddr->hpdc = bp->b_cylin; 376 hpaddr->hpcs1 = HP_SEEK|HP_GO; 377 hprecal[mi->mi_unit]++; 378 return (MBD_RESTARTED); 379 case 2: 380 if (mi->mi_tab.b_errcnt < 16 || 381 (bp->b_flags & B_READ) == 0) 382 goto donerecal; 383 hpaddr->hpof = hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22; 384 hpaddr->hpcs1 = HP_OFFSET|HP_GO; 385 hprecal[mi->mi_unit]++; 386 return (MBD_RESTARTED); 387 donerecal: 388 case 3: 389 hprecal[mi->mi_unit] = 0; 390 return (MBD_RETRY); 391 } 392 bp->b_resid = -(mi->mi_mba->mba_bcr) & 0xffff; 393 if (mi->mi_tab.b_errcnt >= 16) { 394 /* 395 * This is fast and occurs rarely; we don't 396 * bother with interrupts. 397 */ 398 hpaddr->hpcs1 = HP_RTC|HP_GO; 399 while (hpaddr->hpds & HPDS_PIP) 400 ; 401 mbclrattn(mi); 402 } 403 hpaddr->hpof = HPOF_FMT22; 404 hpaddr->hpcs1 = HP_RELEASE|HP_GO; 405 return (MBD_DONE); 406 } 407 408 hpread(dev) 409 dev_t dev; 410 { 411 register int unit = minor(dev) >> 3; 412 413 if (unit >= NHP) 414 u.u_error = ENXIO; 415 else 416 physio(hpstrategy, &rhpbuf[unit], dev, B_READ, minphys); 417 } 418 419 hpwrite(dev) 420 dev_t dev; 421 { 422 register int unit = minor(dev) >> 3; 423 424 if (unit >= NHP) 425 u.u_error = ENXIO; 426 else 427 physio(hpstrategy, &rhpbuf[unit], dev, B_WRITE, minphys); 428 } 429 430 hpecc(mi, flag) 431 register struct mba_device *mi; 432 int flag; 433 { 434 register struct mba_regs *mbp = mi->mi_mba; 435 register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv; 436 register struct buf *bp = mi->mi_tab.b_actf; 437 register struct hpst *st = &hpst[mi->mi_type]; 438 int npf, o; 439 int bn, cn, tn, sn; 440 int bcr; 441 442 bcr = mbp->mba_bcr & 0xffff; 443 if (bcr) 444 bcr |= 0xffff0000; /* sxt */ 445 #ifndef NOBADSECT 446 if (flag == CONT) 447 npf = bp->b_error; 448 else 449 #endif 450 npf = btop(bcr + bp->b_bcount); 451 o = (int)bp->b_un.b_addr & PGOFSET; 452 bn = dkblock(bp); 453 cn = bp->b_cylin; 454 sn = bn%(st->nspc) + npf; 455 tn = sn/st->nsect; 456 sn %= st->nsect; 457 cn += tn/st->ntrak; 458 tn %= st->ntrak; 459 switch (flag) { 460 case ECC: 461 { 462 register int i; 463 caddr_t addr; 464 struct pte mpte; 465 int bit, byte, mask; 466 467 npf--; /* because block in error is previous block */ 468 printf("hp%d%c: soft ecc sn%d\n", dkunit(bp), 469 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); 470 mask = rp->hpec2&0xffff; 471 i = (rp->hpec1&0xffff) - 1; /* -1 makes 0 origin */ 472 bit = i&07; 473 i = (i&~07)>>3; 474 byte = i + o; 475 while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { 476 mpte = mbp->mba_map[npf+btop(byte)]; 477 addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET); 478 putmemc(addr, getmemc(addr)^(mask<<bit)); 479 byte++; 480 i++; 481 bit -= 8; 482 } 483 if (bcr == 0) 484 return (0); 485 npf++; 486 break; 487 } 488 489 case SSE: 490 rp->hpof |= HPOF_SSEI; 491 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 492 break; 493 494 #ifndef NOBADSECT 495 case BSE: 496 #ifdef HPBDEBUG 497 if (hpbdebug) 498 printf("hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 499 #endif 500 if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0) 501 return(0); 502 bp->b_flags |= B_BAD; 503 bp->b_error = npf + 1; 504 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 505 cn = bn/st->nspc; 506 sn = bn%st->nspc; 507 tn = sn/st->nsect; 508 sn %= st->nsect; 509 mbp->mba_bcr = -512; 510 #ifdef HPBDEBUG 511 if (hpbdebug) 512 printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); 513 #endif 514 break; 515 516 case CONT: 517 #ifdef HPBDEBUG 518 if (hpbdebug) 519 printf("hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 520 #endif 521 npf = bp->b_error; 522 bp->b_flags &= ~B_BAD; 523 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 524 if ((mbp->mba_bcr & 0xffff) == 0) 525 return(0); 526 break; 527 #endif 528 } 529 rp->hpcs1 = HP_DCLR|HP_GO; 530 if (rp->hpof&HPOF_SSEI) 531 sn++; 532 rp->hpdc = cn; 533 rp->hpda = (tn<<8) + sn; 534 mbp->mba_sr = -1; 535 mbp->mba_var = (int)ptob(npf) + o; 536 rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO; 537 mi->mi_tab.b_errcnt = 0; /* error has been corrected */ 538 return (1); 539 } 540 541 #define DBSIZE 20 542 543 hpdump(dev) 544 dev_t dev; 545 { 546 register struct mba_device *mi; 547 register struct mba_regs *mba; 548 struct hpdevice *hpaddr; 549 char *start; 550 int num, unit; 551 register struct hpst *st; 552 553 num = maxfree; 554 start = 0; 555 unit = minor(dev) >> 3; 556 if (unit >= NHP) 557 return (ENXIO); 558 #define phys(a,b) ((b)((int)(a)&0x7fffffff)) 559 mi = phys(hpinfo[unit],struct mba_device *); 560 if (mi == 0 || mi->mi_alive == 0) 561 return (ENXIO); 562 mba = phys(mi->mi_hd, struct mba_hd *)->mh_physmba; 563 mba->mba_cr = MBCR_INIT; 564 hpaddr = (struct hpdevice *)&mba->mba_drv[mi->mi_drive]; 565 if ((hpaddr->hpds & HPDS_VV) == 0) { 566 hpaddr->hpcs1 = HP_DCLR|HP_GO; 567 hpaddr->hpcs1 = HP_PRESET|HP_GO; 568 hpaddr->hpof = HPOF_FMT22; 569 } 570 st = &hpst[mi->mi_type]; 571 if (dumplo < 0 || dumplo + num >= st->sizes[minor(dev)&07].nblocks) 572 return (EINVAL); 573 while (num > 0) { 574 register struct pte *hpte = mba->mba_map; 575 register int i; 576 int blk, cn, sn, tn; 577 daddr_t bn; 578 579 blk = num > DBSIZE ? DBSIZE : num; 580 bn = dumplo + btop(start); 581 cn = bn/st->nspc + st->sizes[minor(dev)&07].cyloff; 582 sn = bn%st->nspc; 583 tn = sn/st->nsect; 584 sn = sn%st->nsect; 585 hpaddr->hpdc = cn; 586 hpaddr->hpda = (tn << 8) + sn; 587 for (i = 0; i < blk; i++) 588 *(int *)hpte++ = (btop(start)+i) | PG_V; 589 mba->mba_sr = -1; 590 mba->mba_bcr = -(blk*NBPG); 591 mba->mba_var = 0; 592 hpaddr->hpcs1 = HP_WCOM | HP_GO; 593 while ((hpaddr->hpds & HPDS_DRY) == 0) 594 ; 595 if (hpaddr->hpds&HPDS_ERR) 596 return (EIO); 597 start += blk*NBPG; 598 num -= blk; 599 } 600 return (0); 601 } 602 #endif 603