1 /* hp.c 4.39 81/05/11 */ 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; 175 176 sz = bp->b_bcount; 177 sz = (sz+511) >> 9; 178 unit = dkunit(bp); 179 if (unit >= NHP) 180 goto bad; 181 mi = hpinfo[unit]; 182 if (mi == 0 || mi->mi_alive == 0) 183 goto bad; 184 st = &hpst[mi->mi_type]; 185 if (bp->b_blkno < 0 || 186 (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) 187 goto bad; 188 bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; 189 (void) spl5(); 190 disksort(&mi->mi_tab, bp); 191 if (mi->mi_tab.b_active == 0) 192 mbustart(mi); 193 (void) spl0(); 194 return; 195 196 bad: 197 bp->b_flags |= B_ERROR; 198 iodone(bp); 199 return; 200 } 201 202 hpustart(mi) 203 register struct mba_device *mi; 204 { 205 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 206 register struct buf *bp = mi->mi_tab.b_actf; 207 register struct hpst *st = &hpst[mi->mi_type]; 208 daddr_t bn; 209 int sn, dist; 210 211 hpaddr->hpcs1 = 0; 212 if ((hpaddr->hpcs1&HP_DVA) == 0) 213 return (MBU_BUSY); 214 if ((hpaddr->hpds & HPDS_VV) == 0 || hpinit[mi->mi_unit] == 0) { 215 #ifndef NOBADSECT 216 struct buf *bbp = &bhpbuf[mi->mi_unit]; 217 #endif 218 219 hpinit[mi->mi_unit] = 1; 220 hpaddr->hpcs1 = HP_DCLR|HP_GO; 221 if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive)) 222 printf("DCLR attn\n"); 223 hpaddr->hpcs1 = HP_PRESET|HP_GO; 224 hpaddr->hpof = HPOF_FMT22; 225 mbclrattn(mi); 226 #ifndef NOBADSECT 227 bbp->b_flags = B_READ|B_BUSY; 228 bbp->b_dev = bp->b_dev; 229 bbp->b_bcount = 512; 230 bbp->b_un.b_addr = (caddr_t)&hpbad[mi->mi_unit]; 231 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 232 bbp->b_cylin = st->ncyl - 1; 233 mi->mi_tab.b_actf = bbp; 234 bbp->av_forw = bp; 235 bp = bbp; 236 #endif 237 } 238 if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1) 239 return (MBU_DODATA); 240 if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY) 241 return (MBU_DODATA); 242 bn = dkblock(bp); 243 sn = bn%st->nspc; 244 sn = (sn+st->nsect-hpSDIST)%st->nsect; 245 if (bp->b_cylin == (hpaddr->hpdc & 0xffff)) { 246 if (hpseek) 247 return (MBU_DODATA); 248 dist = ((hpaddr->hpla & 0xffff)>>6) - st->nsect + 1; 249 if (dist < 0) 250 dist += st->nsect; 251 if (dist > st->nsect - hpRDIST) 252 return (MBU_DODATA); 253 } else 254 hpaddr->hpdc = bp->b_cylin; 255 if (hpseek) 256 hpaddr->hpcs1 = HP_SEEK|HP_GO; 257 else { 258 hpaddr->hpda = sn; 259 hpaddr->hpcs1 = HP_SEARCH|HP_GO; 260 } 261 return (MBU_STARTED); 262 } 263 264 hpstart(mi) 265 register struct mba_device *mi; 266 { 267 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 268 register struct buf *bp = mi->mi_tab.b_actf; 269 register struct hpst *st = &hpst[mi->mi_type]; 270 daddr_t bn; 271 int sn, tn; 272 273 bn = dkblock(bp); 274 sn = bn%st->nspc; 275 tn = sn/st->nsect; 276 sn %= st->nsect; 277 hpaddr->hpdc = bp->b_cylin; 278 hpaddr->hpda = (tn << 8) + sn; 279 return(0); 280 } 281 282 hpdtint(mi, mbsr) 283 register struct mba_device *mi; 284 int mbsr; 285 { 286 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 287 register struct buf *bp = mi->mi_tab.b_actf; 288 int retry = 0; 289 290 #ifndef NOBADSECT 291 if (bp->b_flags&B_BAD) { 292 if (hpecc(mi, CONT)) 293 return(MBD_RESTARTED); 294 } 295 #endif 296 if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) { 297 #ifdef HPDEBUG 298 if (hpdebug) { 299 int dc = hpaddr->hpdc, da = hpaddr->hpda; 300 301 printf("hperr: bp %x cyl %d blk %d as %o ", 302 bp, bp->b_cylin, bp->b_blkno, 303 hpaddr->hpas&0xff); 304 printf("dc %x da %x\n",dc&0xffff, da&0xffff); 305 printf("errcnt %d ", mi->mi_tab.b_errcnt); 306 printf("mbsr=%b ", mbsr, mbsr_bits); 307 printf("er1=%b er2=%b\n", 308 hpaddr->hper1, HPER1_BITS, 309 hpaddr->hper2, HPER2_BITS); 310 DELAY(1000000); 311 } 312 #endif 313 if (hpaddr->hper1&HPER1_WLE) { 314 printf("hp%d: write locked\n", dkunit(bp)); 315 bp->b_flags |= B_ERROR; 316 } else if (++mi->mi_tab.b_errcnt > 27 || 317 mbsr & MBSR_HARD || 318 hpaddr->hper1 & HPER1_HARD || 319 hpaddr->hper2 & HPER2_HARD) { 320 hard: 321 harderr(bp, "hp"); 322 if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC))) 323 printf("mbsr=%b ", mbsr, mbsr_bits); 324 printf("er1=%b er2=%b", 325 hpaddr->hper1, HPER1_BITS, 326 hpaddr->hper2, HPER2_BITS); 327 if (hpaddr->hpmr) 328 printf(" mr=%o", hpaddr->hpmr&0xffff); 329 if (hpaddr->hpmr2) 330 printf(" mr2=%o", hpaddr->hpmr2&0xffff); 331 printf("\n"); 332 bp->b_flags |= B_ERROR; 333 hprecal[mi->mi_unit] = 0; 334 } else if (hpaddr->hper2 & HPER2_BSE) { 335 #ifndef NOBADSECT 336 if (hpecc(mi, BSE)) 337 return(MBD_RESTARTED); 338 else 339 #endif 340 goto hard; 341 } else if (hptypes[mi->mi_type] == MBDT_RM80 && 342 hpaddr->hper2&HPER2_SSE) { 343 hpecc(mi, SSE); 344 return (MBD_RESTARTED); 345 } else if ((hpaddr->hper1&(HPER1_DCK|HPER1_ECH))==HPER1_DCK) { 346 if (hpecc(mi, ECC)) 347 return (MBD_RESTARTED); 348 /* else done */ 349 } else 350 retry = 1; 351 hpaddr->hpcs1 = HP_DCLR|HP_GO; 352 if ((mi->mi_tab.b_errcnt&07) == 4) { 353 hpaddr->hpcs1 = HP_RECAL|HP_GO; 354 hprecal[mi->mi_unit] = 1; 355 return(MBD_RESTARTED); 356 } 357 if (retry) 358 return (MBD_RETRY); 359 } 360 #ifdef HPDEBUG 361 else 362 if (hpdebug && hprecal[mi->mi_unit]) { 363 printf("recal %d ", hprecal[mi->mi_unit]); 364 printf("errcnt %d\n", mi->mi_tab.b_errcnt); 365 printf("mbsr=%b ", mbsr, mbsr_bits); 366 printf("er1=%b er2=%b\n", 367 hpaddr->hper1, HPER1_BITS, 368 hpaddr->hper2, HPER2_BITS); 369 } 370 #endif 371 switch (hprecal[mi->mi_unit]) { 372 373 case 1: 374 hpaddr->hpdc = bp->b_cylin; 375 hpaddr->hpcs1 = HP_SEEK|HP_GO; 376 hprecal[mi->mi_unit]++; 377 return (MBD_RESTARTED); 378 case 2: 379 if (mi->mi_tab.b_errcnt < 16 || 380 (bp->b_flags & B_READ) == 0) 381 goto donerecal; 382 hpaddr->hpof = hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22; 383 hpaddr->hpcs1 = HP_OFFSET|HP_GO; 384 hprecal[mi->mi_unit]++; 385 return (MBD_RESTARTED); 386 donerecal: 387 case 3: 388 hprecal[mi->mi_unit] = 0; 389 return (MBD_RETRY); 390 } 391 bp->b_resid = -(mi->mi_mba->mba_bcr) & 0xffff; 392 if (mi->mi_tab.b_errcnt >= 16) { 393 /* 394 * This is fast and occurs rarely; we don't 395 * bother with interrupts. 396 */ 397 hpaddr->hpcs1 = HP_RTC|HP_GO; 398 while (hpaddr->hpds & HPDS_PIP) 399 ; 400 mbclrattn(mi); 401 } 402 hpaddr->hpof = HPOF_FMT22; 403 hpaddr->hpcs1 = HP_RELEASE|HP_GO; 404 return (MBD_DONE); 405 } 406 407 hpread(dev) 408 dev_t dev; 409 { 410 register int unit = minor(dev) >> 3; 411 412 if (unit >= NHP) 413 u.u_error = ENXIO; 414 else 415 physio(hpstrategy, &rhpbuf[unit], dev, B_READ, minphys); 416 } 417 418 hpwrite(dev) 419 dev_t dev; 420 { 421 register int unit = minor(dev) >> 3; 422 423 if (unit >= NHP) 424 u.u_error = ENXIO; 425 else 426 physio(hpstrategy, &rhpbuf[unit], dev, B_WRITE, minphys); 427 } 428 429 hpecc(mi, flag) 430 register struct mba_device *mi; 431 int flag; 432 { 433 register struct mba_regs *mbp = mi->mi_mba; 434 register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv; 435 register struct buf *bp = mi->mi_tab.b_actf; 436 register struct hpst *st = &hpst[mi->mi_type]; 437 int npf, o; 438 int bn, cn, tn, sn; 439 int bcr; 440 441 bcr = mbp->mba_bcr & 0xffff; 442 if (bcr) 443 bcr |= 0xffff0000; /* sxt */ 444 #ifndef NOBADSECT 445 if (flag == CONT) 446 npf = bp->b_error; 447 else 448 #endif 449 npf = btop(bcr + bp->b_bcount); 450 o = (int)bp->b_un.b_addr & PGOFSET; 451 bn = dkblock(bp); 452 cn = bp->b_cylin; 453 sn = bn%(st->nspc) + npf; 454 tn = sn/st->nsect; 455 sn %= st->nsect; 456 cn += tn/st->ntrak; 457 tn %= st->ntrak; 458 switch (flag) { 459 case ECC: 460 { 461 register int i; 462 caddr_t addr; 463 struct pte mpte; 464 int bit, byte, mask; 465 466 npf--; /* because block in error is previous block */ 467 printf("hp%d%c: soft ecc sn%d\n", dkunit(bp), 468 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); 469 mask = rp->hpec2&0xffff; 470 i = (rp->hpec1&0xffff) - 1; /* -1 makes 0 origin */ 471 bit = i&07; 472 i = (i&~07)>>3; 473 byte = i + o; 474 while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { 475 mpte = mbp->mba_map[npf+btop(byte)]; 476 addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET); 477 putmemc(addr, getmemc(addr)^(mask<<bit)); 478 byte++; 479 i++; 480 bit -= 8; 481 } 482 if (bcr == 0) 483 return (0); 484 break; 485 } 486 487 case SSE: 488 rp->hpof |= HPOF_SSEI; 489 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 490 break; 491 492 #ifndef NOBADSECT 493 case BSE: 494 #ifdef HPBDEBUG 495 if (hpbdebug) 496 printf("hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 497 #endif 498 if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0) 499 return(0); 500 bp->b_flags |= B_BAD; 501 bp->b_error = npf + 1; 502 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 503 cn = bn/st->nspc; 504 sn = bn%st->nspc; 505 tn = sn/st->nsect; 506 sn %= st->nsect; 507 mbp->mba_bcr = -512; 508 #ifdef HPBDEBUG 509 if (hpbdebug) 510 printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); 511 #endif 512 break; 513 514 case CONT: 515 #ifdef HPBDEBUG 516 if (hpbdebug) 517 printf("hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 518 #endif 519 npf = bp->b_error; 520 bp->b_flags &= ~B_BAD; 521 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 522 if ((mbp->mba_bcr & 0xffff) == 0) 523 return(0); 524 break; 525 #endif 526 } 527 rp->hpcs1 = HP_DCLR|HP_GO; 528 if (rp->hpof&HPOF_SSEI) 529 sn++; 530 rp->hpdc = cn; 531 rp->hpda = (tn<<8) + sn; 532 mbp->mba_sr = -1; 533 mbp->mba_var = (int)ptob(npf) + o; 534 rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO; 535 mi->mi_tab.b_errcnt = 0; /* error has been corrected */ 536 return (1); 537 } 538 539 #define DBSIZE 20 540 541 hpdump(dev) 542 dev_t dev; 543 { 544 register struct mba_device *mi; 545 register struct mba_regs *mba; 546 struct hpdevice *hpaddr; 547 char *start; 548 int num, unit; 549 register struct hpst *st; 550 551 num = maxfree; 552 start = 0; 553 unit = minor(dev) >> 3; 554 if (unit >= NHP) 555 return (ENXIO); 556 #define phys(a,b) ((b)((int)(a)&0x7fffffff)) 557 mi = phys(hpinfo[unit],struct mba_device *); 558 if (mi == 0 || mi->mi_alive == 0) 559 return (ENXIO); 560 mba = phys(mi->mi_hd, struct mba_hd *)->mh_physmba; 561 mba->mba_cr = MBCR_INIT; 562 hpaddr = (struct hpdevice *)&mba->mba_drv[mi->mi_drive]; 563 if ((hpaddr->hpds & HPDS_VV) == 0) { 564 hpaddr->hpcs1 = HP_DCLR|HP_GO; 565 hpaddr->hpcs1 = HP_PRESET|HP_GO; 566 hpaddr->hpof = HPOF_FMT22; 567 } 568 st = &hpst[mi->mi_type]; 569 if (dumplo < 0 || dumplo + num >= st->sizes[minor(dev)&07].nblocks) 570 return (EINVAL); 571 while (num > 0) { 572 register struct pte *hpte = mba->mba_map; 573 register int i; 574 int blk, cn, sn, tn; 575 daddr_t bn; 576 577 blk = num > DBSIZE ? DBSIZE : num; 578 bn = dumplo + btop(start); 579 cn = bn/st->nspc + st->sizes[minor(dev)&07].cyloff; 580 sn = bn%st->nspc; 581 tn = sn/st->nsect; 582 sn = sn%st->nsect; 583 hpaddr->hpdc = cn; 584 hpaddr->hpda = (tn << 8) + sn; 585 for (i = 0; i < blk; i++) 586 *(int *)hpte++ = (btop(start)+i) | PG_V; 587 mba->mba_sr = -1; 588 mba->mba_bcr = -(blk*NBPG); 589 mba->mba_var = 0; 590 hpaddr->hpcs1 = HP_WCOM | HP_GO; 591 while ((hpaddr->hpds & HPDS_DRY) == 0) 592 ; 593 if (hpaddr->hpds&HPDS_ERR) 594 return (EIO); 595 start += blk*NBPG; 596 num -= blk; 597 } 598 return (0); 599 } 600 #endif 601