1 /* hp.c 4.79 83/06/19 */ 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 #include "../machine/pte.h" 22 23 #include "../h/param.h" 24 #include "../h/systm.h" 25 #include "../h/dk.h" 26 #include "../h/buf.h" 27 #include "../h/conf.h" 28 #include "../h/dir.h" 29 #include "../h/user.h" 30 #include "../h/map.h" 31 #include "../vax/mtpr.h" 32 #include "../h/vm.h" 33 #include "../h/cmap.h" 34 #include "../h/dkbad.h" 35 #include "../h/ioctl.h" 36 #include "../h/uio.h" 37 38 #include "../vax/dkio.h" 39 #include "../vaxmba/mbareg.h" 40 #include "../vaxmba/mbavar.h" 41 #include "../vaxmba/hpreg.h" 42 43 /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ 44 struct size { 45 daddr_t nblocks; 46 int cyloff; 47 } rp06_sizes[8] = { 48 15884, 0, /* A=cyl 0 thru 37 */ 49 33440, 38, /* B=cyl 38 thru 117 */ 50 340670, 0, /* C=cyl 0 thru 814 */ 51 15884, 118, /* D=cyl 118 thru 155 */ 52 55936, 156, /* E=cyl 156 thru 289 */ 53 219384, 290, /* F=cyl 290 thru 814 */ 54 291280, 118, /* G=cyl 118 thru 814 */ 55 0, 0, 56 }, rp05_sizes[8] = { 57 15884, 0, /* A=cyl 0 thru 37 */ 58 33440, 38, /* B=cyl 38 thru 117 */ 59 171798, 0, /* C=cyl 0 thru 410 */ 60 15884, 118, /* D=cyl 118 thru 155 */ 61 55936, 156, /* E=cyl 156 thru 289 */ 62 50512, 290, /* F=cyl 290 thru 410 */ 63 122408, 118, /* G=cyl 118 thru 410 */ 64 0, 0, 65 }, rm03_sizes[8] = { 66 15884, 0, /* A=cyl 0 thru 99 */ 67 33440, 100, /* B=cyl 100 thru 308 */ 68 131680, 0, /* C=cyl 0 thru 822 */ 69 15884, 309, /* D=cyl 309 thru 408 */ 70 55936, 409, /* E=cyl 409 thru 758 */ 71 10144, 759, /* F=cyl 759 thru 822 */ 72 82144, 309, /* G=cyl 309 thru 822 */ 73 0, 0, 74 }, rm05_sizes[8] = { 75 15884, 0, /* A=cyl 0 thru 26 */ 76 33440, 27, /* B=cyl 27 thru 81 */ 77 500384, 0, /* C=cyl 0 thru 822 */ 78 15884, 562, /* D=cyl 562 thru 588 */ 79 55936, 589, /* E=cyl 589 thru 680 */ 80 86240, 681, /* F=cyl 681 thru 822 */ 81 158592, 562, /* G=cyl 562 thru 822 */ 82 291346, 82, /* H=cyl 82 thru 561 */ 83 }, rm80_sizes[8] = { 84 15884, 0, /* A=cyl 0 thru 36 */ 85 33440, 37, /* B=cyl 37 thru 114 */ 86 242606, 0, /* C=cyl 0 thru 558 */ 87 15884, 115, /* D=cyl 115 thru 151 */ 88 55936, 152, /* E=cyl 152 thru 280 */ 89 120559, 281, /* F=cyl 281 thru 558 */ 90 192603, 115, /* G=cyl 115 thru 558 */ 91 0, 0, 92 }, rp07_sizes[8] = { 93 15884, 0, /* A=cyl 0 thru 9 */ 94 66880, 10, /* B=cyl 10 thru 51 */ 95 1008000, 0, /* C=cyl 0 thru 629 */ 96 15884, 235, /* D=cyl 235 thru 244 */ 97 307200, 245, /* E=cyl 245 thru 436 */ 98 308650, 437, /* F=cyl 437 thru 629 */ 99 631850, 235, /* G=cyl 235 thru 629 */ 100 291346, 52, /* H=cyl 52 thru 234 */ 101 }, cdc9775_sizes[8] = { 102 15884, 0, /* A=cyl 0 thru 12 */ 103 66880, 13, /* B=cyl 13 thru 65 */ 104 1079040, 0, /* C=cyl 0 thru 842 */ 105 15884, 294, /* D=cyl 294 thru 306 */ 106 307200, 307, /* E=cyl 307 thru 546 */ 107 378784, 547, /* F=cyl 547 thru 842 */ 108 702624, 294, /* G=cyl 294 thru 842 */ 109 291346, 66, /* H=cyl 66 thru 293 */ 110 }, cdc9730_sizes[8] = { 111 15884, 0, /* A=cyl 0 thru 49 */ 112 33440, 50, /* B=cyl 50 thru 154 */ 113 263360, 0, /* C=cyl 0 thru 822 */ 114 15884, 155, /* D=cyl 155 thru 204 */ 115 55936, 205, /* E=cyl 205 thru 379 */ 116 141664, 380, /* F=cyl 380 thru 822 */ 117 213664, 155, /* G=cyl 155 thru 822 */ 118 0, 0, 119 }, capricorn_sizes[8] = { 120 15884, 0, /* A=cyl 0 thru 31 */ 121 33440, 32, /* B=cyl 32 thru 97 */ 122 524288, 0, /* C=cyl 0 thru 1023 */ 123 15884, 668, /* D=cyl 668 thru 699 */ 124 55936, 700, /* E=cyl 700 thru 809 */ 125 109472, 810, /* F=cyl 810 thru 1023 */ 126 182176, 668, /* G=cyl 668 thru 1023 */ 127 291346, 98, /* H=cyl 98 thru 667 */ 128 }, eagle_sizes[8] = { 129 15884, 0, /* A=cyl 0 thru 16 */ 130 66880, 17, /* B=cyl 17 thru 86 */ 131 808320, 0, /* C=cyl 0 thru 841 */ 132 15884, 391, /* D=cyl 391 thru 407 */ 133 307200, 408, /* E=cyl 408 thru 727 */ 134 109296, 728, /* F=cyl 728 thru 841 */ 135 432816, 391, /* G=cyl 391 thru 841 */ 136 291346, 87, /* H=cyl 87 thru 390 */ 137 }, ampex_sizes[8] = { 138 15884, 0, /* A=cyl 0 thru 26 */ 139 33440, 27, /* B=cyl 27 thru 81 */ 140 495520, 0, /* C=cyl 0 thru 814 */ 141 15884, 562, /* D=cyl 562 thru 588 */ 142 55936, 589, /* E=cyl 589 thru 680 */ 143 81312, 681, /* F=cyl 681 thru 814 */ 144 153664, 562, /* G=cyl 562 thru 814 */ 145 291346, 82, /* H=cyl 82 thru 561 */ 146 }; 147 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ 148 149 /* 150 * Table for converting Massbus drive types into 151 * indices into the partition tables. Slots are 152 * left for those drives devined from other means 153 * (e.g. SI, AMPEX, etc.). 154 */ 155 short hptypes[] = { 156 #define HPDT_RM03 0 157 MBDT_RM03, 158 #define HPDT_RM05 1 159 MBDT_RM05, 160 #define HPDT_RP06 2 161 MBDT_RP06, 162 #define HPDT_RM80 3 163 MBDT_RM80, 164 #define HPDT_RP04 4 165 MBDT_RP04, 166 #define HPDT_RP05 5 167 MBDT_RP05, 168 #define HPDT_RP07 6 169 MBDT_RP07, 170 #define HPDT_ML11A 7 171 MBDT_ML11A, 172 #define HPDT_ML11B 8 173 MBDT_ML11B, 174 #define HPDT_9775 9 175 -1, 176 #define HPDT_9730 10 177 -1, 178 #define HPDT_CAPRICORN 11 179 -1, 180 #define HPDT_EAGLE 12 181 -1, 182 #define HPDT_9300 13 183 -1, 184 #define HPDT_RM02 14 185 MBDT_RM02, /* beware, actually capricorn or eagle */ 186 0 187 }; 188 struct mba_device *hpinfo[NHP]; 189 int hpattach(),hpustart(),hpstart(),hpdtint(); 190 struct mba_driver hpdriver = 191 { hpattach, 0, hpustart, hpstart, hpdtint, 0, 192 hptypes, "hp", 0, hpinfo }; 193 194 /* 195 * Beware, sdist and rdist are not well tuned 196 * for many of the drives listed in this table. 197 * Try patching things with something i/o intensive 198 * running and watch iostat. 199 */ 200 struct hpst { 201 short nsect; /* # sectors/track */ 202 short ntrak; /* # tracks/cylinder */ 203 short nspc; /* # sector/cylinders */ 204 short ncyl; /* # cylinders */ 205 struct size *sizes; /* partition tables */ 206 short sdist; /* seek distance metric */ 207 short rdist; /* rotational distance metric */ 208 } hpst[] = { 209 { 32, 5, 32*5, 823, rm03_sizes, 3, 4 }, /* RM03 */ 210 { 32, 19, 32*19, 823, rm05_sizes, 3, 4 }, /* RM05 */ 211 { 22, 19, 22*19, 815, rp06_sizes, 3, 4 }, /* RP06 */ 212 { 31, 14, 31*14, 559, rm80_sizes, 3, 4 }, /* RM80 */ 213 { 22, 19, 22*19, 411, rp05_sizes, 3, 4 }, /* RP04 */ 214 { 22, 19, 22*19, 411, rp05_sizes, 3, 4 }, /* RP05 */ 215 { 50, 32, 50*32, 630, rp07_sizes, 7, 8 }, /* RP07 */ 216 { 1, 1, 1, 1, 0, 0, 0 }, /* ML11A */ 217 { 1, 1, 1, 1, 0, 0, 0 }, /* ML11B */ 218 { 32, 40, 32*40, 843, cdc9775_sizes, 3, 4 }, /* 9775 */ 219 { 32, 10, 32*10, 823, cdc9730_sizes, 3, 4 }, /* 9730 */ 220 { 32, 16, 32*16, 1024, capricorn_sizes,7, 8 }, /* Capricorn */ 221 { 48, 20, 48*20, 842, eagle_sizes, 7, 8 }, /* EAGLE */ 222 { 32, 19, 32*19, 815, ampex_sizes, 3, 4 }, /* 9300 */ 223 }; 224 225 u_char hp_offset[16] = { 226 HPOF_P400, HPOF_M400, HPOF_P400, HPOF_M400, 227 HPOF_P800, HPOF_M800, HPOF_P800, HPOF_M800, 228 HPOF_P1200, HPOF_M1200, HPOF_P1200, HPOF_M1200, 229 0, 0, 0, 0, 230 }; 231 232 struct buf rhpbuf[NHP]; 233 struct buf bhpbuf[NHP]; 234 struct dkbad hpbad[NHP]; 235 236 struct hpsoftc { 237 u_char sc_hpinit; /* drive initialized */ 238 u_char sc_recal; /* recalibrate state */ 239 u_char sc_hdr; /* next i/o includes header */ 240 u_char sc_doseeks; /* perform explicit seeks */ 241 daddr_t sc_mlsize; /* ML11 size */ 242 } hpsoftc[NHP]; 243 244 #define b_cylin b_resid 245 246 /* #define ML11 0 to remove ML11 support */ 247 #define ML11 (hptypes[mi->mi_type] == MBDT_ML11A) 248 #define RP06 (hptypes[mi->mi_type] <= MBDT_RP06) 249 #define RM80 (hptypes[mi->mi_type] == MBDT_RM80) 250 251 #define MASKREG(reg) ((reg)&0xffff) 252 253 #ifdef INTRLVE 254 daddr_t dkblock(); 255 #endif 256 257 /*ARGSUSED*/ 258 hpattach(mi, slave) 259 register struct mba_device *mi; 260 { 261 262 mi->mi_type = hpmaptype(mi); 263 if (!ML11 && mi->mi_dk >= 0) { 264 struct hpst *st = &hpst[mi->mi_type]; 265 266 dk_mspw[mi->mi_dk] = 1.0 / 60 / (st->nsect * 256); 267 } 268 } 269 270 /* 271 * Map apparent MASSBUS drive type into manufacturer 272 * specific configuration. For SI controllers this is done 273 * based on codes in the serial number register. For 274 * EMULEX controllers, the track and sector attributes are 275 * used when the drive type is an RM02 (not supported by DEC). 276 */ 277 hpmaptype(mi) 278 register struct mba_device *mi; 279 { 280 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 281 register int type = mi->mi_type; 282 283 /* 284 * Model-byte processing for SI controllers. 285 * NB: Only deals with RM03 and RM05 emulations. 286 */ 287 if (type == HPDT_RM03 || type == HPDT_RM05) { 288 int hpsn = hpaddr->hpsn; 289 290 if ((hpsn & SIMB_LU) != mi->mi_drive) 291 return (type); 292 switch ((hpsn & SIMB_MB) & ~(SIMB_S6|SIRM03|SIRM05)) { 293 294 case SI9775D: 295 printf("hp%d: 9775 (direct)\n", mi->mi_unit); 296 type = HPDT_9775; 297 break; 298 299 case SI9730D: 300 printf("hp%d: 9730 (direct)\n", mi->mi_unit); 301 type = HPDT_9730; 302 break; 303 304 /* 305 * Beware, since the only SI controller we 306 * have has a 9300 instead of a 9766, we map the 307 * drive type into the 9300. This means that 308 * on a 9766 you lose the last 8 cylinders (argh). 309 */ 310 case SI9766: 311 printf("hp%d: 9300\n", mi->mi_unit); 312 type = HPDT_9300; 313 break; 314 315 case SI9762: 316 printf("hp%d: 9762\n", mi->mi_unit); 317 type = HPDT_RM03; 318 break; 319 320 case SICAPD: 321 printf("hp%d: capricorn\n", mi->mi_unit); 322 type = HPDT_CAPRICORN; 323 break; 324 325 case SI9751D: 326 printf("hp%d: eagle\n", mi->mi_unit); 327 type = HPDT_EAGLE; 328 break; 329 } 330 return (type); 331 } 332 333 /* 334 * EMULEX SC750 or SC780. Poke the holding register. 335 */ 336 if (type == HPDT_RM02) { 337 int ntracks, nsectors; 338 339 hpaddr->hpof = HPOF_FMT22; 340 mbclrattn(mi); 341 hpaddr->hpcs1 = HP_NOP; 342 hpaddr->hphr = HPHR_MAXTRAK; 343 ntracks = MASKREG(hpaddr->hphr) + 1; 344 if (ntracks == 16) { 345 printf("hp%d: capricorn\n", mi->mi_unit); 346 type = HPDT_CAPRICORN; 347 goto done; 348 } 349 if (ntracks == 19) { 350 printf("hp%d: 9300\n", mi->mi_unit); 351 type = HPDT_9300; 352 goto done; 353 } 354 hpaddr->hpcs1 = HP_NOP; 355 hpaddr->hphr = HPHR_MAXSECT; 356 nsectors = MASKREG(hpaddr->hphr) + 1; 357 if (ntracks == 20 && nsectors == 48) { 358 type = HPDT_EAGLE; 359 printf("hp%d: eagle\n", mi->mi_unit); 360 goto done; 361 } 362 printf("hp%d: ntracks %d, nsectors %d: unknown device\n", 363 mi->mi_unit, ntracks, nsectors); 364 done: 365 hpaddr->hpcs1 = HP_DCLR|HP_GO; 366 mbclrattn(mi); /* conservative */ 367 return (type); 368 } 369 370 /* 371 * Map all ML11's to the same type. Also calculate 372 * transfer rates based on device characteristics. 373 */ 374 if (type == HPDT_ML11A || type == HPDT_ML11B) { 375 register struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 376 register int trt; 377 378 sc->sc_mlsize = hpaddr->hpmr & HPMR_SZ; 379 if ((hpaddr->hpmr & HPMR_ARRTYP) == 0) 380 sc->sc_mlsize >>= 2; 381 if (mi->mi_dk >= 0) { 382 trt = (hpaddr->hpmr & HPMR_TRT) >> 8; 383 dk_mspw[mi->mi_dk] = 1.0 / (1<<(20-trt)); 384 } 385 type = HPDT_ML11A; 386 } 387 return (type); 388 } 389 390 hpopen(dev) 391 dev_t dev; 392 { 393 register int unit = minor(dev) >> 3; 394 register struct mba_device *mi; 395 396 if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0) 397 return (ENXIO); 398 return (0); 399 } 400 401 hpstrategy(bp) 402 register struct buf *bp; 403 { 404 register struct mba_device *mi; 405 register struct hpst *st; 406 register int unit; 407 long sz, bn; 408 int xunit = minor(bp->b_dev) & 07; 409 int s; 410 411 sz = bp->b_bcount; 412 sz = (sz+511) >> 9; 413 unit = dkunit(bp); 414 if (unit >= NHP) 415 goto bad; 416 mi = hpinfo[unit]; 417 if (mi == 0 || mi->mi_alive == 0) 418 goto bad; 419 st = &hpst[mi->mi_type]; 420 if (ML11) { 421 struct hpsoftc *sc = &hpsoftc[unit]; 422 423 if (bp->b_blkno < 0 || 424 dkblock(bp)+sz > sc->sc_mlsize) 425 goto bad; 426 bp->b_cylin = 0; 427 } else { 428 if (bp->b_blkno < 0 || 429 (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) 430 goto bad; 431 bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; 432 } 433 s = spl5(); 434 disksort(&mi->mi_tab, bp); 435 if (mi->mi_tab.b_active == 0) 436 mbustart(mi); 437 splx(s); 438 return; 439 440 bad: 441 bp->b_flags |= B_ERROR; 442 iodone(bp); 443 return; 444 } 445 446 hpustart(mi) 447 register struct mba_device *mi; 448 { 449 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 450 register struct buf *bp = mi->mi_tab.b_actf; 451 register struct hpst *st; 452 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 453 daddr_t bn; 454 int sn, dist; 455 456 st = &hpst[mi->mi_type]; 457 hpaddr->hpcs1 = 0; 458 if ((hpaddr->hpcs1&HP_DVA) == 0) 459 return (MBU_BUSY); 460 if ((hpaddr->hpds & HPDS_VV) == 0 || !sc->sc_hpinit) { 461 struct buf *bbp = &bhpbuf[mi->mi_unit]; 462 463 sc->sc_hpinit = 1; 464 hpaddr->hpcs1 = HP_DCLR|HP_GO; 465 if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive)) 466 printf("DCLR attn\n"); 467 hpaddr->hpcs1 = HP_PRESET|HP_GO; 468 if (!ML11) 469 hpaddr->hpof = HPOF_FMT22; 470 mbclrattn(mi); 471 if (!ML11) { 472 bbp->b_flags = B_READ|B_BUSY; 473 bbp->b_dev = bp->b_dev; 474 bbp->b_bcount = 512; 475 bbp->b_un.b_addr = (caddr_t)&hpbad[mi->mi_unit]; 476 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 477 bbp->b_cylin = st->ncyl - 1; 478 mi->mi_tab.b_actf = bbp; 479 bbp->av_forw = bp; 480 bp = bbp; 481 } 482 } 483 if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1) 484 return (MBU_DODATA); 485 if (ML11) 486 return (MBU_DODATA); 487 if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY) 488 return (MBU_DODATA); 489 bn = dkblock(bp); 490 sn = bn%st->nspc; 491 sn = (sn + st->nsect - st->sdist) % st->nsect; 492 if (bp->b_cylin == MASKREG(hpaddr->hpdc)) { 493 if (sc->sc_doseeks) 494 return (MBU_DODATA); 495 dist = (MASKREG(hpaddr->hpla) >> 6) - st->nsect + 1; 496 if (dist < 0) 497 dist += st->nsect; 498 if (dist > st->nsect - st->rdist) 499 return (MBU_DODATA); 500 } else 501 hpaddr->hpdc = bp->b_cylin; 502 if (sc->sc_doseeks) 503 hpaddr->hpcs1 = HP_SEEK|HP_GO; 504 else { 505 hpaddr->hpda = sn; 506 hpaddr->hpcs1 = HP_SEARCH|HP_GO; 507 } 508 return (MBU_STARTED); 509 } 510 511 hpstart(mi) 512 register struct mba_device *mi; 513 { 514 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 515 register struct buf *bp = mi->mi_tab.b_actf; 516 register struct hpst *st = &hpst[mi->mi_type]; 517 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 518 daddr_t bn; 519 int sn, tn; 520 521 bn = dkblock(bp); 522 if (ML11) 523 hpaddr->hpda = bn; 524 else { 525 sn = bn%st->nspc; 526 tn = sn/st->nsect; 527 sn %= st->nsect; 528 hpaddr->hpdc = bp->b_cylin; 529 hpaddr->hpda = (tn << 8) + sn; 530 } 531 if (sc->sc_hdr) { 532 if (bp->b_flags & B_READ) 533 return (HP_RHDR|HP_GO); 534 else 535 return (HP_WHDR|HP_GO); 536 } 537 return (0); 538 } 539 540 hpdtint(mi, mbsr) 541 register struct mba_device *mi; 542 int mbsr; 543 { 544 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 545 register struct buf *bp = mi->mi_tab.b_actf; 546 register struct hpst *st; 547 register int er1, er2; 548 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 549 int retry = 0; 550 551 st = &hpst[mi->mi_type]; 552 if (bp->b_flags&B_BAD && hpecc(mi, CONT)) 553 return (MBD_RESTARTED); 554 if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) { 555 #ifdef HPDEBUG 556 if (hpdebug) { 557 int dc = hpaddr->hpdc, da = hpaddr->hpda; 558 559 printf("hperr: bp %x cyl %d blk %d as %o ", 560 bp, bp->b_cylin, bp->b_blkno, 561 hpaddr->hpas&0xff); 562 printf("dc %x da %x\n",MASKREG(dc), MASKREG(da)); 563 printf("errcnt %d ", mi->mi_tab.b_errcnt); 564 printf("mbsr=%b ", mbsr, mbsr_bits); 565 printf("er1=%b er2=%b\n", 566 hpaddr->hper1, HPER1_BITS, 567 hpaddr->hper2, HPER2_BITS); 568 DELAY(1000000); 569 } 570 #endif 571 er1 = hpaddr->hper1; 572 er2 = hpaddr->hper2; 573 if (er1 & HPER1_HCRC) { 574 er1 &= ~(HPER1_HCE|HPER1_FER); 575 er2 &= ~HPER2_BSE; 576 } 577 if (er1&HPER1_WLE) { 578 printf("hp%d: write locked\n", dkunit(bp)); 579 bp->b_flags |= B_ERROR; 580 } else if (MASKREG(er1) == HPER1_FER && RP06 && !sc->sc_hdr) { 581 if (hpecc(mi, BSE)) 582 return (MBD_RESTARTED); 583 goto hard; 584 } else if (++mi->mi_tab.b_errcnt > 27 || 585 mbsr & MBSR_HARD || 586 er1 & HPER1_HARD || 587 sc->sc_hdr || 588 (!ML11 && (er2 & HPER2_HARD))) { 589 /* 590 * If HCRC the header is screwed up and the sector 591 * might be in the bad sector table, better check.. 592 * 593 * Note: If the header is screwed up on a skip sector 594 * track, then the appropriate replacement sector 595 * cannot be found. 596 */ 597 if (er1&HPER1_HCRC && !ML11 && hpecc(mi, BSE)) 598 return (MBD_RESTARTED); 599 hard: 600 if (ML11) 601 bp->b_blkno = MASKREG(hpaddr->hpda); 602 else 603 bp->b_blkno = MASKREG(hpaddr->hpdc) * st->nspc + 604 (MASKREG(hpaddr->hpda) >> 8) * st->nsect + 605 (hpaddr->hpda&0x1f); 606 harderr(bp, "hp"); 607 if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC))) 608 printf("mbsr=%b ", mbsr, mbsr_bits); 609 printf("er1=%b er2=%b", 610 hpaddr->hper1, HPER1_BITS, 611 hpaddr->hper2, HPER2_BITS); 612 if (hpaddr->hpmr) 613 printf(" mr=%o", MASKREG(hpaddr->hpmr)); 614 if (hpaddr->hpmr2) 615 printf(" mr2=%o", MASKREG(hpaddr->hpmr2)); 616 printf("\n"); 617 bp->b_flags |= B_ERROR; 618 retry = 0; 619 sc->sc_recal = 0; 620 } else if ((er2 & HPER2_BSE) && !ML11) { 621 if (hpecc(mi, BSE)) 622 return (MBD_RESTARTED); 623 goto hard; 624 } else if (RM80 && er2&HPER2_SSE) { 625 (void) hpecc(mi, SSE); 626 return (MBD_RESTARTED); 627 } else if ((er1&(HPER1_DCK|HPER1_ECH))==HPER1_DCK) { 628 if (hpecc(mi, ECC)) 629 return (MBD_RESTARTED); 630 /* else done */ 631 } else 632 retry = 1; 633 hpaddr->hpcs1 = HP_DCLR|HP_GO; 634 if (ML11) { 635 if (mi->mi_tab.b_errcnt >= 16) 636 goto hard; 637 } else if ((mi->mi_tab.b_errcnt&07) == 4) { 638 hpaddr->hpcs1 = HP_RECAL|HP_GO; 639 sc->sc_recal = 1; 640 return (MBD_RESTARTED); 641 } 642 if (retry) 643 return (MBD_RETRY); 644 } 645 #ifdef HPDEBUG 646 else 647 if (hpdebug && sc->sc_recal) { 648 printf("recal %d ", sc->sc_recal); 649 printf("errcnt %d\n", mi->mi_tab.b_errcnt); 650 printf("mbsr=%b ", mbsr, mbsr_bits); 651 printf("er1=%b er2=%b\n", 652 hpaddr->hper1, HPER1_BITS, 653 hpaddr->hper2, HPER2_BITS); 654 } 655 #endif 656 switch (sc->sc_recal) { 657 658 case 1: 659 hpaddr->hpdc = bp->b_cylin; 660 hpaddr->hpcs1 = HP_SEEK|HP_GO; 661 sc->sc_recal++; 662 return (MBD_RESTARTED); 663 case 2: 664 if (mi->mi_tab.b_errcnt < 16 || 665 (bp->b_flags & B_READ) == 0) 666 goto donerecal; 667 hpaddr->hpof = hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22; 668 hpaddr->hpcs1 = HP_OFFSET|HP_GO; 669 sc->sc_recal++; 670 return (MBD_RESTARTED); 671 donerecal: 672 case 3: 673 sc->sc_recal = 0; 674 return (MBD_RETRY); 675 } 676 sc->sc_hdr = 0; 677 bp->b_resid = MASKREG(-mi->mi_mba->mba_bcr); 678 if (mi->mi_tab.b_errcnt >= 16) { 679 /* 680 * This is fast and occurs rarely; we don't 681 * bother with interrupts. 682 */ 683 hpaddr->hpcs1 = HP_RTC|HP_GO; 684 while (hpaddr->hpds & HPDS_PIP) 685 ; 686 mbclrattn(mi); 687 } 688 if (!ML11) { 689 hpaddr->hpof = HPOF_FMT22; 690 hpaddr->hpcs1 = HP_RELEASE|HP_GO; 691 } 692 return (MBD_DONE); 693 } 694 695 hpread(dev, uio) 696 dev_t dev; 697 struct uio *uio; 698 { 699 register int unit = minor(dev) >> 3; 700 701 if (unit >= NHP) 702 return (ENXIO); 703 return (physio(hpstrategy, &rhpbuf[unit], dev, B_READ, minphys, uio)); 704 } 705 706 hpwrite(dev, uio) 707 dev_t dev; 708 struct uio *uio; 709 { 710 register int unit = minor(dev) >> 3; 711 712 if (unit >= NHP) 713 return (ENXIO); 714 return (physio(hpstrategy, &rhpbuf[unit], dev, B_WRITE, minphys, uio)); 715 } 716 717 /*ARGSUSED*/ 718 hpioctl(dev, cmd, data, flag) 719 dev_t dev; 720 int cmd; 721 caddr_t data; 722 int flag; 723 { 724 725 switch (cmd) { 726 727 case DKIOCHDR: /* do header read/write */ 728 hpsoftc[minor(dev) >> 3].sc_hdr = 1; 729 return (0); 730 731 default: 732 return (ENXIO); 733 } 734 } 735 736 hpecc(mi, flag) 737 register struct mba_device *mi; 738 int flag; 739 { 740 register struct mba_regs *mbp = mi->mi_mba; 741 register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv; 742 register struct buf *bp = mi->mi_tab.b_actf; 743 register struct hpst *st = &hpst[mi->mi_type]; 744 int npf, o; 745 int bn, cn, tn, sn; 746 int bcr; 747 748 bcr = MASKREG(mbp->mba_bcr); 749 if (bcr) 750 bcr |= 0xffff0000; /* sxt */ 751 if (flag == CONT) 752 npf = bp->b_error; 753 else 754 npf = btop(bcr + bp->b_bcount); 755 o = (int)bp->b_un.b_addr & PGOFSET; 756 bn = dkblock(bp); 757 cn = bp->b_cylin; 758 sn = bn%(st->nspc) + npf; 759 tn = sn/st->nsect; 760 sn %= st->nsect; 761 cn += tn/st->ntrak; 762 tn %= st->ntrak; 763 switch (flag) { 764 case ECC: { 765 register int i; 766 caddr_t addr; 767 struct pte mpte; 768 int bit, byte, mask; 769 770 npf--; /* because block in error is previous block */ 771 printf("hp%d%c: soft ecc sn%d\n", dkunit(bp), 772 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); 773 mask = MASKREG(rp->hpec2); 774 i = MASKREG(rp->hpec1) - 1; /* -1 makes 0 origin */ 775 bit = i&07; 776 i = (i&~07)>>3; 777 byte = i + o; 778 while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { 779 mpte = mbp->mba_map[npf+btop(byte)]; 780 addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET); 781 putmemc(addr, getmemc(addr)^(mask<<bit)); 782 byte++; 783 i++; 784 bit -= 8; 785 } 786 if (bcr == 0) 787 return (0); 788 npf++; 789 break; 790 } 791 792 case SSE: 793 rp->hpof |= HPOF_SSEI; 794 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 795 break; 796 797 case BSE: 798 #ifdef HPBDEBUG 799 if (hpbdebug) 800 printf("hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 801 #endif 802 if (rp->hpof&HPOF_SSEI) 803 sn++; 804 if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0) 805 return (0); 806 bp->b_flags |= B_BAD; 807 bp->b_error = npf + 1; 808 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 809 cn = bn/st->nspc; 810 sn = bn%st->nspc; 811 tn = sn/st->nsect; 812 sn %= st->nsect; 813 mbp->mba_bcr = -512; 814 rp->hpof &= ~HPOF_SSEI; 815 #ifdef HPBDEBUG 816 if (hpbdebug) 817 printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); 818 #endif 819 break; 820 821 case CONT: 822 #ifdef HPBDEBUG 823 if (hpbdebug) 824 printf("hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 825 #endif 826 npf = bp->b_error; 827 bp->b_flags &= ~B_BAD; 828 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 829 if (MASKREG(mbp->mba_bcr) == 0) 830 return (0); 831 break; 832 } 833 rp->hpcs1 = HP_DCLR|HP_GO; 834 if (rp->hpof&HPOF_SSEI) 835 sn++; 836 rp->hpdc = cn; 837 rp->hpda = (tn<<8) + sn; 838 mbp->mba_sr = -1; 839 mbp->mba_var = (int)ptob(npf) + o; 840 rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO; 841 mi->mi_tab.b_errcnt = 0; /* error has been corrected */ 842 return (1); 843 } 844 845 #define DBSIZE 20 846 847 hpdump(dev) 848 dev_t dev; 849 { 850 register struct mba_device *mi; 851 register struct mba_regs *mba; 852 struct hpdevice *hpaddr; 853 char *start; 854 int num, unit; 855 register struct hpst *st; 856 857 num = maxfree; 858 start = 0; 859 unit = minor(dev) >> 3; 860 if (unit >= NHP) 861 return (ENXIO); 862 #define phys(a,b) ((b)((int)(a)&0x7fffffff)) 863 mi = phys(hpinfo[unit],struct mba_device *); 864 if (mi == 0 || mi->mi_alive == 0) 865 return (ENXIO); 866 mba = phys(mi->mi_hd, struct mba_hd *)->mh_physmba; 867 mba->mba_cr = MBCR_INIT; 868 hpaddr = (struct hpdevice *)&mba->mba_drv[mi->mi_drive]; 869 if ((hpaddr->hpds & HPDS_VV) == 0) { 870 hpaddr->hpcs1 = HP_DCLR|HP_GO; 871 hpaddr->hpcs1 = HP_PRESET|HP_GO; 872 hpaddr->hpof = HPOF_FMT22; 873 } 874 st = &hpst[mi->mi_type]; 875 if (dumplo < 0 || dumplo + num >= st->sizes[minor(dev)&07].nblocks) 876 return (EINVAL); 877 while (num > 0) { 878 register struct pte *hpte = mba->mba_map; 879 register int i; 880 int blk, cn, sn, tn; 881 daddr_t bn; 882 883 blk = num > DBSIZE ? DBSIZE : num; 884 bn = dumplo + btop(start); 885 cn = bn/st->nspc + st->sizes[minor(dev)&07].cyloff; 886 sn = bn%st->nspc; 887 tn = sn/st->nsect; 888 sn = sn%st->nsect; 889 hpaddr->hpdc = cn; 890 hpaddr->hpda = (tn << 8) + sn; 891 for (i = 0; i < blk; i++) 892 *(int *)hpte++ = (btop(start)+i) | PG_V; 893 mba->mba_sr = -1; 894 mba->mba_bcr = -(blk*NBPG); 895 mba->mba_var = 0; 896 hpaddr->hpcs1 = HP_WCOM | HP_GO; 897 while ((hpaddr->hpds & HPDS_DRY) == 0) 898 ; 899 if (hpaddr->hpds&HPDS_ERR) 900 return (EIO); 901 start += blk*NBPG; 902 num -= blk; 903 } 904 return (0); 905 } 906 907 hpsize(dev) 908 dev_t dev; 909 { 910 int unit = minor(dev) >> 3; 911 struct mba_device *mi; 912 struct hpst *st; 913 914 if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0) 915 return (-1); 916 st = &hpst[mi->mi_type]; 917 return ((int)st->sizes[minor(dev) & 07].nblocks); 918 } 919 #endif 920