1 /* 2 * Copyright (c) 1982 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 * @(#)hp.c 6.12 (Berkeley) 09/16/85 7 */ 8 9 #ifdef HPDEBUG 10 int hpdebug; 11 #endif 12 #ifdef HPBDEBUG 13 int hpbdebug; 14 #endif 15 16 #include "hp.h" 17 #if NHP > 0 18 /* 19 * HP disk driver for RP0x+RMxx+ML11 20 * 21 * TODO: 22 * check RM80 skip sector handling when ECC's occur later 23 * check offset recovery handling 24 * see if DCLR and/or RELEASE set attention status 25 * print bits of mr && mr2 symbolically 26 */ 27 #include "../machine/pte.h" 28 29 #include "param.h" 30 #include "systm.h" 31 #include "dk.h" 32 #include "buf.h" 33 #include "conf.h" 34 #include "dir.h" 35 #include "user.h" 36 #include "map.h" 37 #include "../vax/mtpr.h" 38 #include "vm.h" 39 #include "cmap.h" 40 #include "dkbad.h" 41 #include "ioctl.h" 42 #include "uio.h" 43 #include "syslog.h" 44 45 #include "../vax/dkio.h" 46 #include "mbareg.h" 47 #include "mbavar.h" 48 #include "hpreg.h" 49 50 /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ 51 struct size { 52 daddr_t nblocks; 53 int cyloff; 54 } rp06_sizes[8] = { 55 15884, 0, /* A=cyl 0 thru 37 */ 56 33440, 38, /* B=cyl 38 thru 117 */ 57 340670, 0, /* C=cyl 0 thru 814 */ 58 15884, 118, /* D=cyl 118 thru 155 */ 59 55936, 156, /* E=cyl 156 thru 289 */ 60 219384, 290, /* F=cyl 290 thru 814 */ 61 291280, 118, /* G=cyl 118 thru 814 */ 62 0, 0, 63 }, rp05_sizes[8] = { 64 15884, 0, /* A=cyl 0 thru 37 */ 65 33440, 38, /* B=cyl 38 thru 117 */ 66 171798, 0, /* C=cyl 0 thru 410 */ 67 15884, 118, /* D=cyl 118 thru 155 */ 68 55936, 156, /* E=cyl 156 thru 289 */ 69 50512, 290, /* F=cyl 290 thru 410 */ 70 122408, 118, /* G=cyl 118 thru 410 */ 71 0, 0, 72 }, rm03_sizes[8] = { 73 15884, 0, /* A=cyl 0 thru 99 */ 74 33440, 100, /* B=cyl 100 thru 308 */ 75 131680, 0, /* C=cyl 0 thru 822 */ 76 15884, 309, /* D=cyl 309 thru 408 */ 77 55936, 409, /* E=cyl 409 thru 758 */ 78 10144, 759, /* F=cyl 759 thru 822 */ 79 82144, 309, /* G=cyl 309 thru 822 */ 80 0, 0, 81 }, rm05_sizes[8] = { 82 15884, 0, /* A=cyl 0 thru 26 */ 83 33440, 27, /* B=cyl 27 thru 81 */ 84 500384, 0, /* C=cyl 0 thru 822 */ 85 15884, 562, /* D=cyl 562 thru 588 */ 86 55936, 589, /* E=cyl 589 thru 680 */ 87 86240, 681, /* F=cyl 681 thru 822 */ 88 158592, 562, /* G=cyl 562 thru 822 */ 89 291346, 82, /* H=cyl 82 thru 561 */ 90 }, rm80_sizes[8] = { 91 15884, 0, /* A=cyl 0 thru 36 */ 92 33440, 37, /* B=cyl 37 thru 114 */ 93 242606, 0, /* C=cyl 0 thru 558 */ 94 15884, 115, /* D=cyl 115 thru 151 */ 95 55936, 152, /* E=cyl 152 thru 280 */ 96 120559, 281, /* F=cyl 281 thru 558 */ 97 192603, 115, /* G=cyl 115 thru 558 */ 98 0, 0, 99 }, rp07_sizes[8] = { 100 15884, 0, /* A=cyl 0 thru 9 */ 101 66880, 10, /* B=cyl 10 thru 51 */ 102 1008000, 0, /* C=cyl 0 thru 629 */ 103 15884, 235, /* D=cyl 235 thru 244 */ 104 307200, 245, /* E=cyl 245 thru 436 */ 105 308650, 437, /* F=cyl 437 thru 629 */ 106 631850, 235, /* G=cyl 235 thru 629 */ 107 291346, 52, /* H=cyl 52 thru 234 */ 108 }, cdc9775_sizes[8] = { 109 15884, 0, /* A=cyl 0 thru 12 */ 110 66880, 13, /* B=cyl 13 thru 65 */ 111 1077760, 0, /* C=cyl 0 thru 841 */ 112 15884, 294, /* D=cyl 294 thru 306 */ 113 307200, 307, /* E=cyl 307 thru 546 */ 114 377440, 547, /* F=cyl 547 thru 841 */ 115 701280, 294, /* G=cyl 294 thru 841 */ 116 291346, 66, /* H=cyl 66 thru 293 */ 117 }, cdc9730_sizes[8] = { 118 15884, 0, /* A=cyl 0 thru 49 */ 119 33440, 50, /* B=cyl 50 thru 154 */ 120 263360, 0, /* C=cyl 0 thru 822 */ 121 15884, 155, /* D=cyl 155 thru 204 */ 122 55936, 205, /* E=cyl 205 thru 379 */ 123 141664, 380, /* F=cyl 380 thru 822 */ 124 213664, 155, /* G=cyl 155 thru 822 */ 125 0, 0, 126 }, capricorn_sizes[8] = { 127 15884, 0, /* A=cyl 0 thru 31 */ 128 33440, 32, /* B=cyl 32 thru 97 */ 129 524288, 0, /* C=cyl 0 thru 1023 */ 130 15884, 668, /* D=cyl 668 thru 699 */ 131 55936, 700, /* E=cyl 700 thru 809 */ 132 109472, 810, /* F=cyl 810 thru 1023 */ 133 182176, 668, /* G=cyl 668 thru 1023 */ 134 291346, 98, /* H=cyl 98 thru 667 */ 135 }, eagle_sizes[8] = { 136 15884, 0, /* A=cyl 0 thru 16 */ 137 66880, 17, /* B=cyl 17 thru 86 */ 138 808320, 0, /* C=cyl 0 thru 841 */ 139 15884, 391, /* D=cyl 391 thru 407 */ 140 307200, 408, /* E=cyl 408 thru 727 */ 141 109296, 728, /* F=cyl 728 thru 841 */ 142 432816, 391, /* G=cyl 391 thru 841 */ 143 291346, 87, /* H=cyl 87 thru 390 */ 144 }, ampex_sizes[8] = { 145 15884, 0, /* A=cyl 0 thru 26 */ 146 33440, 27, /* B=cyl 27 thru 81 */ 147 495520, 0, /* C=cyl 0 thru 814 */ 148 15884, 562, /* D=cyl 562 thru 588 */ 149 55936, 589, /* E=cyl 589 thru 680 */ 150 81312, 681, /* F=cyl 681 thru 814 */ 151 153664, 562, /* G=cyl 562 thru 814 */ 152 291346, 82, /* H=cyl 82 thru 561 */ 153 }; 154 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ 155 156 /* 157 * Table for converting Massbus drive types into 158 * indices into the partition tables. Slots are 159 * left for those drives devined from other means 160 * (e.g. SI, AMPEX, etc.). 161 */ 162 short hptypes[] = { 163 #define HPDT_RM03 0 164 MBDT_RM03, 165 #define HPDT_RM05 1 166 MBDT_RM05, 167 #define HPDT_RP06 2 168 MBDT_RP06, 169 #define HPDT_RM80 3 170 MBDT_RM80, 171 #define HPDT_RP04 4 172 MBDT_RP04, 173 #define HPDT_RP05 5 174 MBDT_RP05, 175 #define HPDT_RP07 6 176 MBDT_RP07, 177 #define HPDT_ML11A 7 178 MBDT_ML11A, 179 #define HPDT_ML11B 8 180 MBDT_ML11B, 181 #define HPDT_9775 9 182 -1, 183 #define HPDT_9730 10 184 -1, 185 #define HPDT_CAPRICORN 11 186 -1, 187 #define HPDT_EAGLE 12 188 -1, 189 #define HPDT_9300 13 190 -1, 191 #define HPDT_RM02 14 192 MBDT_RM02, /* beware, actually capricorn or eagle */ 193 0 194 }; 195 struct mba_device *hpinfo[NHP]; 196 int hpattach(),hpustart(),hpstart(),hpdtint(); 197 struct mba_driver hpdriver = 198 { hpattach, 0, hpustart, hpstart, hpdtint, 0, 199 hptypes, "hp", 0, hpinfo }; 200 201 /* 202 * These variable are all measured in sectors. 203 * Sdist is how much to "lead" in the search for a desired sector 204 * (i.e. if want N, search for N-sdist.) 205 * Maxdist and mindist define the region right before our desired sector within 206 * which we don't bother searching. We don't search when we are already less 207 * then maxdist and more than mindist sectors "before" our desired sector. 208 * Maxdist should be >= sdist. 209 * 210 * Beware, sdist, mindist and maxdist are not well tuned 211 * for many of the drives listed in this table. 212 * Try patching things with something i/o intensive 213 * running and watch iostat. 214 */ 215 struct hpst { 216 short nsect; /* # sectors/track */ 217 short ntrak; /* # tracks/cylinder */ 218 short nspc; /* # sector/cylinders */ 219 short ncyl; /* # cylinders */ 220 struct size *sizes; /* partition tables */ 221 short sdist; /* seek distance metric */ 222 short maxdist; /* boundaries of non-searched area */ 223 short mindist; /* preceding the target sector */ 224 } hpst[] = { 225 { 32, 5, 32*5, 823, rm03_sizes, 7, 4, 1 }, /* RM03 */ 226 { 32, 19, 32*19, 823, rm05_sizes, 7, 4, 1 }, /* RM05 */ 227 { 22,19, 22*19, 815, rp06_sizes, 7, 4, 1 }, /* RP06 */ 228 { 31, 14, 31*14, 559, rm80_sizes, 7, 4, 1 }, /* RM80 */ 229 { 22, 19, 22*19, 411, rp05_sizes, 7, 4, 1 }, /* RP04 */ 230 { 22, 19, 22*19, 411, rp05_sizes, 7, 4, 1 }, /* RP05 */ 231 { 50, 32, 50*32, 630, rp07_sizes, 15, 8, 3 }, /* RP07 */ 232 { 1, 1, 1, 1, 0, 0, 0, 0 }, /* ML11A */ 233 { 1, 1, 1, 1, 0, 0, 0, 0 }, /* ML11B */ 234 { 32, 40, 32*40, 843, cdc9775_sizes, 7, 4, 1 }, /* 9775 */ 235 { 32, 10, 32*10, 823, cdc9730_sizes, 7, 4, 1 }, /* 9730 */ 236 { 32, 16, 32*16, 1024, capricorn_sizes,10,4, 3 }, /* Capricorn */ 237 { 48, 20, 48*20, 842, eagle_sizes, 15, 8, 3 }, /* EAGLE */ 238 { 32, 19, 32*19, 815, ampex_sizes, 7, 4, 1 }, /* 9300 */ 239 }; 240 241 u_char hp_offset[16] = { 242 HPOF_P400, HPOF_M400, HPOF_P400, HPOF_M400, 243 HPOF_P800, HPOF_M800, HPOF_P800, HPOF_M800, 244 HPOF_P1200, HPOF_M1200, HPOF_P1200, HPOF_M1200, 245 0, 0, 0, 0, 246 }; 247 248 struct buf rhpbuf[NHP]; 249 struct buf bhpbuf[NHP]; 250 struct dkbad hpbad[NHP]; 251 252 struct hpsoftc { 253 u_char sc_hpinit; /* drive initialized */ 254 u_char sc_recal; /* recalibrate state */ 255 u_char sc_hdr; /* next i/o includes header */ 256 u_char sc_doseeks; /* perform explicit seeks */ 257 daddr_t sc_mlsize; /* ML11 size */ 258 int sc_pgdone; /* amount sucessfully transfered */ 259 daddr_t sc_badbn; /* replacement block number */ 260 } hpsoftc[NHP]; 261 262 #define b_cylin b_resid 263 264 /* #define ML11 0 to remove ML11 support */ 265 #define ML11 (hptypes[mi->mi_type] == MBDT_ML11A) 266 #define RP06 (hptypes[mi->mi_type] <= MBDT_RP06) 267 #define RM80 (hptypes[mi->mi_type] == MBDT_RM80) 268 269 #define hpunit(dev) (minor(dev) >> 3) 270 #define MASKREG(reg) ((reg)&0xffff) 271 #define HPWAIT(mi, addr) (((addr)->hpds & HPDS_DRY) || hpwait(mi)) 272 273 /*ARGSUSED*/ 274 hpattach(mi, slave) 275 register struct mba_device *mi; 276 { 277 278 mi->mi_type = hpmaptype(mi); 279 if (!ML11 && mi->mi_dk >= 0) { 280 struct hpst *st = &hpst[mi->mi_type]; 281 282 dk_mspw[mi->mi_dk] = 1.0 / 60 / (st->nsect * 256); 283 } 284 } 285 286 /* 287 * Map apparent MASSBUS drive type into manufacturer 288 * specific configuration. For SI controllers this is done 289 * based on codes in the serial number register. For 290 * EMULEX controllers, the track and sector attributes are 291 * used when the drive type is an RM02 (not supported by DEC). 292 */ 293 hpmaptype(mi) 294 register struct mba_device *mi; 295 { 296 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 297 register int type = mi->mi_type; 298 299 /* 300 * Model-byte processing for SI controllers. 301 * NB: Only deals with RM03 and RM05 emulations. 302 */ 303 if (type == HPDT_RM03 || type == HPDT_RM05) { 304 int hpsn = hpaddr->hpsn; 305 306 if ((hpsn & SIMB_LU) != mi->mi_drive) 307 return (type); 308 switch ((hpsn & SIMB_MB) & ~(SIMB_S6|SIRM03|SIRM05)) { 309 310 case SI9775D: 311 printf("hp%d: 9775 (direct)\n", mi->mi_unit); 312 type = HPDT_9775; 313 break; 314 315 case SI9730D: 316 printf("hp%d: 9730 (direct)\n", mi->mi_unit); 317 type = HPDT_9730; 318 break; 319 320 /* 321 * Beware, since the only SI controller we 322 * have has a 9300 instead of a 9766, we map the 323 * drive type into the 9300. This means that 324 * on a 9766 you lose the last 8 cylinders (argh). 325 */ 326 case SI9766: 327 printf("hp%d: 9300\n", mi->mi_unit); 328 type = HPDT_9300; 329 break; 330 331 case SI9762: 332 printf("hp%d: 9762\n", mi->mi_unit); 333 type = HPDT_RM03; 334 break; 335 336 case SICAPD: 337 printf("hp%d: capricorn\n", mi->mi_unit); 338 type = HPDT_CAPRICORN; 339 break; 340 341 case SI9751D: 342 printf("hp%d: eagle\n", mi->mi_unit); 343 type = HPDT_EAGLE; 344 break; 345 } 346 return (type); 347 } 348 349 /* 350 * EMULEX SC750 or SC780. Poke the holding register. 351 */ 352 if (type == HPDT_RM02) { 353 int ntracks, nsectors; 354 355 hpaddr->hpof = HPOF_FMT22; 356 mbclrattn(mi); 357 hpaddr->hpcs1 = HP_NOP; 358 hpaddr->hphr = HPHR_MAXTRAK; 359 ntracks = MASKREG(hpaddr->hphr) + 1; 360 if (ntracks == 16) { 361 printf("hp%d: capricorn\n", mi->mi_unit); 362 type = HPDT_CAPRICORN; 363 goto done; 364 } 365 if (ntracks == 19) { 366 printf("hp%d: 9300\n", mi->mi_unit); 367 type = HPDT_9300; 368 goto done; 369 } 370 hpaddr->hpcs1 = HP_NOP; 371 hpaddr->hphr = HPHR_MAXSECT; 372 nsectors = MASKREG(hpaddr->hphr) + 1; 373 if (ntracks == 20 && nsectors == 48) { 374 type = HPDT_EAGLE; 375 printf("hp%d: eagle\n", mi->mi_unit); 376 goto done; 377 } 378 printf("hp%d: ntracks %d, nsectors %d: unknown device\n", 379 mi->mi_unit, ntracks, nsectors); 380 done: 381 hpaddr->hpcs1 = HP_DCLR|HP_GO; 382 mbclrattn(mi); /* conservative */ 383 return (type); 384 } 385 386 /* 387 * Map all ML11's to the same type. Also calculate 388 * transfer rates based on device characteristics. 389 */ 390 if (type == HPDT_ML11A || type == HPDT_ML11B) { 391 register struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 392 register int trt; 393 394 sc->sc_mlsize = hpaddr->hpmr & HPMR_SZ; 395 if ((hpaddr->hpmr & HPMR_ARRTYP) == 0) 396 sc->sc_mlsize >>= 2; 397 if (mi->mi_dk >= 0) { 398 trt = (hpaddr->hpmr & HPMR_TRT) >> 8; 399 dk_mspw[mi->mi_dk] = 1.0 / (1<<(20-trt)); 400 } 401 type = HPDT_ML11A; 402 } 403 return (type); 404 } 405 406 hpopen(dev) 407 dev_t dev; 408 { 409 register int unit = hpunit(dev); 410 register struct mba_device *mi; 411 412 if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0) 413 return (ENXIO); 414 return (0); 415 } 416 417 hpstrategy(bp) 418 register struct buf *bp; 419 { 420 register struct mba_device *mi; 421 register struct hpst *st; 422 register int unit; 423 long sz, bn; 424 int xunit = minor(bp->b_dev) & 07; 425 int s; 426 427 sz = bp->b_bcount; 428 sz = (sz+511) >> 9; 429 unit = hpunit(bp->b_dev); 430 if (unit >= NHP) { 431 bp->b_error = ENXIO; 432 goto bad; 433 } 434 mi = hpinfo[unit]; 435 if (mi == 0 || mi->mi_alive == 0) { 436 bp->b_error = ENXIO; 437 goto bad; 438 } 439 st = &hpst[mi->mi_type]; 440 if (ML11) { 441 struct hpsoftc *sc = &hpsoftc[unit]; 442 443 if (bp->b_blkno < 0 || 444 bp->b_blkno+sz > sc->sc_mlsize) { 445 if (bp->b_blkno == sc->sc_mlsize + 1) 446 goto done; 447 bp->b_error = EINVAL; 448 goto bad; 449 } 450 bp->b_cylin = 0; 451 } else { 452 if (bp->b_blkno < 0 || 453 (bn = bp->b_blkno)+sz > st->sizes[xunit].nblocks) { 454 if (bp->b_blkno == st->sizes[xunit].nblocks + 1) 455 goto done; 456 bp->b_error = EINVAL; 457 goto bad; 458 } 459 bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; 460 } 461 s = spl5(); 462 disksort(&mi->mi_tab, bp); 463 if (mi->mi_tab.b_active == 0) 464 mbustart(mi); 465 splx(s); 466 return; 467 468 bad: 469 bp->b_flags |= B_ERROR; 470 done: 471 iodone(bp); 472 return; 473 } 474 475 hpustart(mi) 476 register struct mba_device *mi; 477 { 478 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 479 register struct buf *bp = mi->mi_tab.b_actf; 480 register struct hpst *st; 481 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 482 daddr_t bn; 483 int sn, tn, dist; 484 485 st = &hpst[mi->mi_type]; 486 hpaddr->hpcs1 = 0; 487 if ((hpaddr->hpcs1&HP_DVA) == 0) 488 return (MBU_BUSY); 489 if ((hpaddr->hpds & HPDS_VV) == 0 || !sc->sc_hpinit) { 490 struct buf *bbp = &bhpbuf[mi->mi_unit]; 491 492 sc->sc_hpinit = 1; 493 hpaddr->hpcs1 = HP_DCLR|HP_GO; 494 if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive)) 495 printf("DCLR attn\n"); 496 hpaddr->hpcs1 = HP_PRESET|HP_GO; 497 if (!ML11) 498 hpaddr->hpof = HPOF_FMT22; 499 mbclrattn(mi); 500 if (!ML11) { 501 bbp->b_flags = B_READ|B_BUSY; 502 bbp->b_dev = bp->b_dev; 503 bbp->b_bcount = 512; 504 bbp->b_un.b_addr = (caddr_t)&hpbad[mi->mi_unit]; 505 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 506 bbp->b_cylin = st->ncyl - 1; 507 mi->mi_tab.b_actf = bbp; 508 bbp->av_forw = bp; 509 bp = bbp; 510 } 511 } 512 if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1) 513 return (MBU_DODATA); 514 if (ML11) 515 return (MBU_DODATA); 516 if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY) 517 return (MBU_DODATA); 518 bn = bp->b_blkno; 519 sn = bn % st->nspc; 520 tn = sn / st->nsect; 521 sn = sn % st->nsect; 522 if (bp->b_cylin == MASKREG(hpaddr->hpdc)) { 523 if (sc->sc_doseeks) 524 return (MBU_DODATA); 525 dist = sn - (MASKREG(hpaddr->hpla) >> 6) - 1; 526 if (dist < 0) 527 dist += st->nsect; 528 if (dist > st->maxdist || dist < st->mindist) 529 return (MBU_DODATA); 530 } else 531 hpaddr->hpdc = bp->b_cylin; 532 if (sc->sc_doseeks) 533 hpaddr->hpcs1 = HP_SEEK|HP_GO; 534 else { 535 sn = (sn + st->nsect - st->sdist) % st->nsect; 536 hpaddr->hpda = (tn << 8) + sn; 537 hpaddr->hpcs1 = HP_SEARCH|HP_GO; 538 } 539 return (MBU_STARTED); 540 } 541 542 hpstart(mi) 543 register struct mba_device *mi; 544 { 545 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 546 register struct buf *bp = mi->mi_tab.b_actf; 547 register struct hpst *st = &hpst[mi->mi_type]; 548 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 549 daddr_t bn; 550 int sn, tn; 551 552 if (bp->b_flags & B_BAD) 553 bn = sc->sc_badbn; 554 else 555 bn = bp->b_blkno + sc->sc_pgdone; 556 if (ML11) 557 hpaddr->hpda = bn; 558 else { 559 sn = bn%st->nspc; 560 tn = sn/st->nsect; 561 sn %= st->nsect; 562 hpaddr->hpdc = bp->b_cylin; 563 hpaddr->hpda = (tn << 8) + sn; 564 } 565 if (sc->sc_hdr) { 566 if (bp->b_flags & B_READ) 567 return (HP_RHDR|HP_GO); 568 else 569 return (HP_WHDR|HP_GO); 570 } 571 return (0); 572 } 573 574 hpdtint(mi, mbsr) 575 register struct mba_device *mi; 576 int mbsr; 577 { 578 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 579 register struct buf *bp = mi->mi_tab.b_actf; 580 register struct hpst *st; 581 register int er1, er2; 582 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 583 int retry = 0, i; 584 585 st = &hpst[mi->mi_type]; 586 if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) { 587 er1 = hpaddr->hper1; 588 er2 = hpaddr->hper2; 589 if (HPWAIT(mi, hpaddr) == 0) 590 goto hard; 591 #ifdef HPDEBUG 592 if (hpdebug) { 593 int dc = hpaddr->hpdc, da = hpaddr->hpda; 594 595 printf("hperr: bp %x cyl %d blk %d pgdone %d as %o ", 596 bp, bp->b_cylin, bp->b_blkno, sc->sc_pgdone, 597 hpaddr->hpas&0xff); 598 printf("dc %x da %x\n",MASKREG(dc), MASKREG(da)); 599 printf("errcnt %d ", mi->mi_tab.b_errcnt); 600 printf("mbsr=%b ", mbsr, mbsr_bits); 601 printf("er1=%b er2=%b\n", MASKREG(er1), HPER1_BITS, 602 MASKREG(er2), HPER2_BITS); 603 DELAY(1000000); 604 } 605 #endif 606 if (er1 & HPER1_HCRC) { 607 er1 &= ~(HPER1_HCE|HPER1_FER); 608 er2 &= ~HPER2_BSE; 609 } 610 if (er1 & HPER1_WLE) { 611 log(KERN_RECOV, "hp%d: write locked\n", 612 hpunit(bp->b_dev)); 613 bp->b_flags |= B_ERROR; 614 } else if (sc->sc_hdr) { 615 goto hard; 616 } else if (RM80 && er2&HPER2_SSE) { 617 (void) hpecc(mi, SSE); 618 return (MBD_RESTARTED); 619 } else if ((er2 & HPER2_BSE) && !ML11) { 620 if (hpecc(mi, BSE)) 621 return (MBD_RESTARTED); 622 goto hard; 623 } else if (MASKREG(er1) == HPER1_FER && RP06) { 624 if (hpecc(mi, BSE)) 625 return (MBD_RESTARTED); 626 goto hard; 627 } else if ((er1 & (HPER1_DCK | HPER1_ECH)) == HPER1_DCK && 628 mi->mi_tab.b_errcnt > 7) { 629 if (hpecc(mi, ECC)) 630 return (MBD_RESTARTED); 631 /* else done */ 632 } else if ((er1 & HPER1_HCRC) && !ML11 && hpecc(mi, BSE)) { 633 /* 634 * HCRC means the header is screwed up and the sector 635 * might well exist in the bad sector table, 636 * better check.... 637 */ 638 return (MBD_RESTARTED); 639 } else if (++mi->mi_tab.b_errcnt > 27 || 640 (ML11 && mi->mi_tab.b_errcnt > 15) || 641 mbsr & MBSR_HARD || 642 er1 & HPER1_HARD || 643 (!ML11 && (er2 & HPER2_HARD))) { 644 hard: 645 if (bp->b_flags & B_BAD) 646 bp->b_blkno = sc->sc_badbn; 647 else { 648 bp->b_blkno = bp->b_blkno + btop(bp->b_bcount - 649 MASKREG(-mi->mi_mba->mba_bcr)); 650 if (er1 & (HPER1_DCK | HPER1_ECH)) 651 bp->b_blkno--; 652 } 653 harderr(bp, "hp"); 654 if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC))) 655 printf("mbsr=%b ", mbsr, mbsr_bits); 656 printf("er1=%b er2=%b", 657 MASKREG(hpaddr->hper1), HPER1_BITS, 658 MASKREG(hpaddr->hper2), HPER2_BITS); 659 if (hpaddr->hpmr) 660 printf(" mr=%o", MASKREG(hpaddr->hpmr)); 661 if (hpaddr->hpmr2) 662 printf(" mr2=%o", MASKREG(hpaddr->hpmr2)); 663 if (sc->sc_hdr) 664 printf(" (hdr i/o)"); 665 printf("\n"); 666 bp->b_flags |= B_ERROR; 667 bp->b_flags &= ~B_BAD; 668 } else 669 retry = 1; 670 hpaddr->hpcs1 = HP_DCLR|HP_GO; 671 if ((mi->mi_tab.b_errcnt & 07) == 4) { 672 hpaddr->hpcs1 = HP_RECAL|HP_GO; 673 sc->sc_recal = 1; 674 return (MBD_RESTARTED); 675 } 676 } 677 #ifdef HPDEBUG 678 else 679 if (hpdebug && sc->sc_recal) { 680 printf("recal %d ", sc->sc_recal); 681 printf("errcnt %d\n", mi->mi_tab.b_errcnt); 682 printf("mbsr=%b ", mbsr, mbsr_bits); 683 printf("er1=%b er2=%b\n", 684 hpaddr->hper1, HPER1_BITS, 685 hpaddr->hper2, HPER2_BITS); 686 } 687 #endif 688 HPWAIT(mi, hpaddr); 689 switch (sc->sc_recal) { 690 691 case 1: 692 hpaddr->hpdc = bp->b_cylin; 693 hpaddr->hpcs1 = HP_SEEK|HP_GO; 694 sc->sc_recal++; 695 return (MBD_RESTARTED); 696 case 2: 697 retry = 1; 698 break; 699 } 700 sc->sc_recal = 0; 701 if (retry) { 702 if (mi->mi_tab.b_errcnt >= 16 && (bp->b_flags & B_READ)) { 703 hpaddr->hpof = 704 hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22; 705 hpaddr->hpcs1 = HP_OFFSET|HP_GO; 706 HPWAIT(mi, hpaddr); 707 mbclrattn(mi); 708 } 709 return (MBD_RETRY); 710 } 711 if (mi->mi_tab.b_errcnt >= 16) { 712 /* 713 * This is fast and occurs rarely; we don't 714 * bother with interrupts. 715 */ 716 hpaddr->hpcs1 = HP_RTC|HP_GO; 717 HPWAIT(mi, hpaddr); 718 mbclrattn(mi); 719 } 720 if ((bp->b_flags & B_BAD) && hpecc(mi, CONT)) 721 return (MBD_RESTARTED); 722 sc->sc_hdr = 0; 723 sc->sc_pgdone = 0; 724 bp->b_resid = MASKREG(-mi->mi_mba->mba_bcr); 725 if (!ML11) { 726 hpaddr->hpof = HPOF_FMT22; 727 hpaddr->hpcs1 = HP_RELEASE|HP_GO; 728 } 729 return (MBD_DONE); 730 } 731 732 /* 733 * Wait (for a bit) for a drive to come ready; 734 * returns nonzero on success. 735 */ 736 hpwait(mi) 737 register struct mba_device *mi; 738 { 739 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 740 register i = 100000; 741 742 while ((hpaddr->hpds & HPDS_DRY) == 0 && --i) 743 DELAY(10); 744 if (i == 0) 745 printf("hp%d: intr, not ready\n", mi->mi_unit); 746 return (i); 747 } 748 749 hpread(dev, uio) 750 dev_t dev; 751 struct uio *uio; 752 { 753 register int unit = hpunit(dev); 754 755 if (unit >= NHP) 756 return (ENXIO); 757 return (physio(hpstrategy, &rhpbuf[unit], dev, B_READ, minphys, uio)); 758 } 759 760 hpwrite(dev, uio) 761 dev_t dev; 762 struct uio *uio; 763 { 764 register int unit = hpunit(dev); 765 766 if (unit >= NHP) 767 return (ENXIO); 768 return (physio(hpstrategy, &rhpbuf[unit], dev, B_WRITE, minphys, uio)); 769 } 770 771 /*ARGSUSED*/ 772 hpioctl(dev, cmd, data, flag) 773 dev_t dev; 774 int cmd; 775 caddr_t data; 776 int flag; 777 { 778 779 switch (cmd) { 780 781 case DKIOCHDR: /* do header read/write */ 782 hpsoftc[hpunit(dev)].sc_hdr = 1; 783 return (0); 784 785 default: 786 return (ENXIO); 787 } 788 } 789 790 hpecc(mi, flag) 791 register struct mba_device *mi; 792 int flag; 793 { 794 register struct mba_regs *mbp = mi->mi_mba; 795 register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv; 796 register struct buf *bp = mi->mi_tab.b_actf; 797 register struct hpst *st = &hpst[mi->mi_type]; 798 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 799 int npf, o; 800 int bn, cn, tn, sn; 801 int bcr; 802 803 bcr = MASKREG(-mbp->mba_bcr); 804 if (bp->b_flags & B_BAD) 805 npf = bp->b_error; 806 else 807 npf = btop(bp->b_bcount - bcr); 808 o = (int)bp->b_un.b_addr & PGOFSET; 809 bn = bp->b_blkno; 810 cn = bp->b_cylin; 811 sn = bn%(st->nspc) + npf; 812 tn = sn/st->nsect; 813 sn %= st->nsect; 814 cn += tn/st->ntrak; 815 tn %= st->ntrak; 816 bn += npf; 817 switch (flag) { 818 case ECC: { 819 register int i; 820 caddr_t addr; 821 struct pte mpte; 822 int bit, byte, mask; 823 824 npf--; /* because block in error is previous block */ 825 bn--; 826 if (bp->b_flags & B_BAD) 827 bn = sc->sc_badbn; 828 log(KERN_RECOV, "hp%d%c: soft ecc sn%d\n", hpunit(bp->b_dev), 829 'a'+(minor(bp->b_dev)&07), bn); 830 mask = MASKREG(rp->hpec2); 831 i = MASKREG(rp->hpec1) - 1; /* -1 makes 0 origin */ 832 bit = i&07; 833 i = (i&~07)>>3; 834 byte = i + o; 835 while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { 836 mpte = mbp->mba_map[npf+btop(byte)]; 837 addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET); 838 putmemc(addr, getmemc(addr)^(mask<<bit)); 839 byte++; 840 i++; 841 bit -= 8; 842 } 843 if (bcr == 0) 844 return (0); 845 npf++; 846 break; 847 } 848 849 case SSE: 850 rp->hpof |= HPOF_SSEI; 851 if (bp->b_flags & B_BAD) { 852 bn = sc->sc_badbn; 853 goto fixregs; 854 } 855 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 856 break; 857 858 case BSE: 859 if (rp->hpof & HPOF_SSEI) 860 sn++; 861 #ifdef HPBDEBUG 862 if (hpbdebug) 863 printf("hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 864 #endif 865 if (bp->b_flags & B_BAD) 866 return (0); 867 if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0) 868 return (0); 869 bp->b_flags |= B_BAD; 870 bp->b_error = npf + 1; 871 rp->hpof &= ~HPOF_SSEI; 872 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 873 sc->sc_badbn = bn; 874 fixregs: 875 cn = bn/st->nspc; 876 sn = bn%st->nspc; 877 tn = sn/st->nsect; 878 sn %= st->nsect; 879 mbp->mba_bcr = -(min(512, bp->b_bcount - (int)ptob(npf))); 880 #ifdef HPBDEBUG 881 if (hpbdebug) 882 printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); 883 #endif 884 break; 885 886 case CONT: 887 #ifdef HPBDEBUG 888 if (hpbdebug) 889 printf("hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 890 #endif 891 bp->b_flags &= ~B_BAD; 892 if ((int)ptob(npf) >= bp->b_bcount) 893 return (0); 894 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 895 break; 896 } 897 rp->hpcs1 = HP_DCLR|HP_GO; 898 if (rp->hpof & HPOF_SSEI) 899 sn++; 900 rp->hpdc = cn; 901 rp->hpda = (tn<<8) + sn; 902 mbp->mba_sr = -1; 903 mbp->mba_var = (int)ptob(npf) + o; 904 rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO; 905 mi->mi_tab.b_errcnt = 0; /* error has been corrected */ 906 sc->sc_pgdone = npf; 907 return (1); 908 } 909 910 #define DBSIZE 20 911 912 hpdump(dev) 913 dev_t dev; 914 { 915 register struct mba_device *mi; 916 register struct mba_regs *mba; 917 struct hpdevice *hpaddr; 918 char *start; 919 int num, unit; 920 register struct hpst *st; 921 922 num = maxfree; 923 start = 0; 924 unit = hpunit(dev); 925 if (unit >= NHP) 926 return (ENXIO); 927 #define phys(a,b) ((b)((int)(a)&0x7fffffff)) 928 mi = phys(hpinfo[unit],struct mba_device *); 929 if (mi == 0 || mi->mi_alive == 0) 930 return (ENXIO); 931 mba = phys(mi->mi_hd, struct mba_hd *)->mh_physmba; 932 mba->mba_cr = MBCR_INIT; 933 hpaddr = (struct hpdevice *)&mba->mba_drv[mi->mi_drive]; 934 if ((hpaddr->hpds & HPDS_VV) == 0) { 935 hpaddr->hpcs1 = HP_DCLR|HP_GO; 936 hpaddr->hpcs1 = HP_PRESET|HP_GO; 937 hpaddr->hpof = HPOF_FMT22; 938 } 939 st = &hpst[mi->mi_type]; 940 if (dumplo < 0) 941 return (EINVAL); 942 if (dumplo + num >= st->sizes[minor(dev)&07].nblocks) 943 num = st->sizes[minor(dev)&07].nblocks - dumplo; 944 while (num > 0) { 945 register struct pte *hpte = mba->mba_map; 946 register int i; 947 int blk, cn, sn, tn; 948 daddr_t bn; 949 950 blk = num > DBSIZE ? DBSIZE : num; 951 bn = dumplo + btop(start); 952 cn = bn/st->nspc + st->sizes[minor(dev)&07].cyloff; 953 sn = bn%st->nspc; 954 tn = sn/st->nsect; 955 sn = sn%st->nsect; 956 hpaddr->hpdc = cn; 957 hpaddr->hpda = (tn << 8) + sn; 958 for (i = 0; i < blk; i++) 959 *(int *)hpte++ = (btop(start)+i) | PG_V; 960 mba->mba_sr = -1; 961 mba->mba_bcr = -(blk*NBPG); 962 mba->mba_var = 0; 963 hpaddr->hpcs1 = HP_WCOM | HP_GO; 964 while ((hpaddr->hpds & HPDS_DRY) == 0) 965 DELAY(10); 966 if (hpaddr->hpds&HPDS_ERR) 967 return (EIO); 968 start += blk*NBPG; 969 num -= blk; 970 } 971 return (0); 972 } 973 974 hpsize(dev) 975 dev_t dev; 976 { 977 int unit = hpunit(dev); 978 struct mba_device *mi; 979 struct hpst *st; 980 981 if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0) 982 return (-1); 983 st = &hpst[mi->mi_type]; 984 return ((int)st->sizes[minor(dev) & 07].nblocks); 985 } 986 #endif 987