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 6.15 (Berkeley) 10/14/85 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 * see if DCLR and/or RELEASE set attention status 23 */ 24 #include "../machine/pte.h" 25 26 #include "param.h" 27 #include "systm.h" 28 #include "dk.h" 29 #include "buf.h" 30 #include "conf.h" 31 #include "dir.h" 32 #include "user.h" 33 #include "map.h" 34 #include "../vax/mtpr.h" 35 #include "vm.h" 36 #include "cmap.h" 37 #include "dkbad.h" 38 #include "ioctl.h" 39 #include "uio.h" 40 #include "syslog.h" 41 42 #include "../vax/dkio.h" 43 #include "mbareg.h" 44 #include "mbavar.h" 45 #include "hpreg.h" 46 47 /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ 48 struct size { 49 daddr_t nblocks; 50 int cyloff; 51 } rp06_sizes[8] = { 52 15884, 0, /* A=cyl 0 thru 37 */ 53 33440, 38, /* B=cyl 38 thru 117 */ 54 340670, 0, /* C=cyl 0 thru 814 */ 55 15884, 118, /* D=cyl 118 thru 155 */ 56 55936, 156, /* E=cyl 156 thru 289 */ 57 219384, 290, /* F=cyl 290 thru 814 */ 58 291280, 118, /* G=cyl 118 thru 814 */ 59 0, 0, 60 }, rp05_sizes[8] = { 61 15884, 0, /* A=cyl 0 thru 37 */ 62 33440, 38, /* B=cyl 38 thru 117 */ 63 171798, 0, /* C=cyl 0 thru 410 */ 64 15884, 118, /* D=cyl 118 thru 155 */ 65 55936, 156, /* E=cyl 156 thru 289 */ 66 50512, 290, /* F=cyl 290 thru 410 */ 67 122408, 118, /* G=cyl 118 thru 410 */ 68 0, 0, 69 }, rm03_sizes[8] = { 70 15884, 0, /* A=cyl 0 thru 99 */ 71 33440, 100, /* B=cyl 100 thru 308 */ 72 131680, 0, /* C=cyl 0 thru 822 */ 73 15884, 309, /* D=cyl 309 thru 408 */ 74 55936, 409, /* E=cyl 409 thru 758 */ 75 10144, 759, /* F=cyl 759 thru 822 */ 76 82144, 309, /* G=cyl 309 thru 822 */ 77 0, 0, 78 }, rm05_sizes[8] = { 79 15884, 0, /* A=cyl 0 thru 26 */ 80 33440, 27, /* B=cyl 27 thru 81 */ 81 500384, 0, /* C=cyl 0 thru 822 */ 82 15884, 562, /* D=cyl 562 thru 588 */ 83 55936, 589, /* E=cyl 589 thru 680 */ 84 86240, 681, /* F=cyl 681 thru 822 */ 85 158592, 562, /* G=cyl 562 thru 822 */ 86 291346, 82, /* H=cyl 82 thru 561 */ 87 }, rm80_sizes[8] = { 88 15884, 0, /* A=cyl 0 thru 36 */ 89 33440, 37, /* B=cyl 37 thru 114 */ 90 242606, 0, /* C=cyl 0 thru 558 */ 91 15884, 115, /* D=cyl 115 thru 151 */ 92 55936, 152, /* E=cyl 152 thru 280 */ 93 120559, 281, /* F=cyl 281 thru 558 */ 94 192603, 115, /* G=cyl 115 thru 558 */ 95 0, 0, 96 }, rp07_sizes[8] = { 97 15884, 0, /* A=cyl 0 thru 9 */ 98 66880, 10, /* B=cyl 10 thru 51 */ 99 1008000, 0, /* C=cyl 0 thru 629 */ 100 15884, 235, /* D=cyl 235 thru 244 */ 101 307200, 245, /* E=cyl 245 thru 436 */ 102 308650, 437, /* F=cyl 437 thru 629 */ 103 631850, 235, /* G=cyl 235 thru 629 */ 104 291346, 52, /* H=cyl 52 thru 234 */ 105 }, cdc9775_sizes[8] = { 106 15884, 0, /* A=cyl 0 thru 12 */ 107 66880, 13, /* B=cyl 13 thru 65 */ 108 1077760, 0, /* C=cyl 0 thru 841 */ 109 15884, 294, /* D=cyl 294 thru 306 */ 110 307200, 307, /* E=cyl 307 thru 546 */ 111 377440, 547, /* F=cyl 547 thru 841 */ 112 701280, 294, /* G=cyl 294 thru 841 */ 113 291346, 66, /* H=cyl 66 thru 293 */ 114 }, cdc9730_sizes[8] = { 115 15884, 0, /* A=cyl 0 thru 49 */ 116 33440, 50, /* B=cyl 50 thru 154 */ 117 263360, 0, /* C=cyl 0 thru 822 */ 118 15884, 155, /* D=cyl 155 thru 204 */ 119 55936, 205, /* E=cyl 205 thru 379 */ 120 141664, 380, /* F=cyl 380 thru 822 */ 121 213664, 155, /* G=cyl 155 thru 822 */ 122 0, 0, 123 }, capricorn_sizes[8] = { 124 15884, 0, /* A=cyl 0 thru 31 */ 125 33440, 32, /* B=cyl 32 thru 97 */ 126 524288, 0, /* C=cyl 0 thru 1023 */ 127 15884, 668, /* D=cyl 668 thru 699 */ 128 55936, 700, /* E=cyl 700 thru 809 */ 129 109472, 810, /* F=cyl 810 thru 1023 */ 130 182176, 668, /* G=cyl 668 thru 1023 */ 131 291346, 98, /* H=cyl 98 thru 667 */ 132 }, eagle_sizes[8] = { 133 15884, 0, /* A=cyl 0 thru 16 */ 134 66880, 17, /* B=cyl 17 thru 86 */ 135 808320, 0, /* C=cyl 0 thru 841 */ 136 15884, 391, /* D=cyl 391 thru 407 */ 137 307200, 408, /* E=cyl 408 thru 727 */ 138 109296, 728, /* F=cyl 728 thru 841 */ 139 432816, 391, /* G=cyl 391 thru 841 */ 140 291346, 87, /* H=cyl 87 thru 390 */ 141 }, ampex_sizes[8] = { 142 15884, 0, /* A=cyl 0 thru 26 */ 143 33440, 27, /* B=cyl 27 thru 81 */ 144 495520, 0, /* C=cyl 0 thru 814 */ 145 15884, 562, /* D=cyl 562 thru 588 */ 146 55936, 589, /* E=cyl 589 thru 680 */ 147 81312, 681, /* F=cyl 681 thru 814 */ 148 153664, 562, /* G=cyl 562 thru 814 */ 149 291346, 82, /* H=cyl 82 thru 561 */ 150 }; 151 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ 152 153 /* 154 * Table for converting Massbus drive types into 155 * indices into the partition tables. Slots are 156 * left for those drives devined from other means 157 * (e.g. SI, AMPEX, etc.). 158 */ 159 short hptypes[] = { 160 #define HPDT_RM03 0 161 MBDT_RM03, 162 #define HPDT_RM05 1 163 MBDT_RM05, 164 #define HPDT_RP06 2 165 MBDT_RP06, 166 #define HPDT_RM80 3 167 MBDT_RM80, 168 #define HPDT_RP04 4 169 MBDT_RP04, 170 #define HPDT_RP05 5 171 MBDT_RP05, 172 #define HPDT_RP07 6 173 MBDT_RP07, 174 #define HPDT_ML11A 7 175 MBDT_ML11A, 176 #define HPDT_ML11B 8 177 MBDT_ML11B, 178 #define HPDT_9775 9 179 -1, 180 #define HPDT_9730 10 181 -1, 182 #define HPDT_CAPRICORN 11 183 -1, 184 #define HPDT_EAGLE 12 185 -1, 186 #define HPDT_9300 13 187 -1, 188 #define HPDT_RM02 14 189 MBDT_RM02, /* beware, actually capricorn or eagle */ 190 0 191 }; 192 struct mba_device *hpinfo[NHP]; 193 int hpattach(),hpustart(),hpstart(),hpdtint(); 194 struct mba_driver hpdriver = 195 { hpattach, 0, hpustart, hpstart, hpdtint, 0, 196 hptypes, "hp", 0, hpinfo }; 197 198 /* 199 * These variable are all measured in sectors. 200 * Sdist is how much to "lead" in the search for a desired sector 201 * (i.e. if want N, search for N-sdist.) 202 * Maxdist and mindist define the region right before our desired sector within 203 * which we don't bother searching. We don't search when we are already less 204 * then maxdist and more than mindist sectors "before" our desired sector. 205 * Maxdist should be >= sdist. 206 * 207 * Beware, sdist, mindist and maxdist are not well tuned 208 * for many of the drives listed in this table. 209 * Try patching things with something i/o intensive 210 * running and watch iostat. 211 */ 212 struct hpst { 213 short nsect; /* # sectors/track */ 214 short ntrak; /* # tracks/cylinder */ 215 short nspc; /* # sector/cylinders */ 216 short ncyl; /* # cylinders */ 217 struct size *sizes; /* partition tables */ 218 short sdist; /* seek distance metric */ 219 short maxdist; /* boundaries of non-searched area */ 220 short mindist; /* preceding the target sector */ 221 } hpst[] = { 222 { 32, 5, 32*5, 823, rm03_sizes, 7, 4, 1 }, /* RM03 */ 223 { 32, 19, 32*19, 823, rm05_sizes, 7, 4, 1 }, /* RM05 */ 224 { 22,19, 22*19, 815, rp06_sizes, 7, 4, 1 }, /* RP06 */ 225 { 31, 14, 31*14, 559, rm80_sizes, 7, 4, 1 }, /* RM80 */ 226 { 22, 19, 22*19, 411, rp05_sizes, 7, 4, 1 }, /* RP04 */ 227 { 22, 19, 22*19, 411, rp05_sizes, 7, 4, 1 }, /* RP05 */ 228 { 50, 32, 50*32, 630, rp07_sizes, 15, 8, 3 }, /* RP07 */ 229 { 1, 1, 1, 1, 0, 0, 0, 0 }, /* ML11A */ 230 { 1, 1, 1, 1, 0, 0, 0, 0 }, /* ML11B */ 231 { 32, 40, 32*40, 843, cdc9775_sizes, 7, 4, 1 }, /* 9775 */ 232 { 32, 10, 32*10, 823, cdc9730_sizes, 7, 4, 1 }, /* 9730 */ 233 { 32, 16, 32*16, 1024, capricorn_sizes,10,4, 3 }, /* Capricorn */ 234 { 48, 20, 48*20, 842, eagle_sizes, 15, 8, 3 }, /* EAGLE */ 235 { 32, 19, 32*19, 815, ampex_sizes, 7, 4, 1 }, /* 9300 */ 236 }; 237 238 u_char hp_offset[16] = { 239 HPOF_P400, HPOF_M400, HPOF_P400, HPOF_M400, 240 HPOF_P800, HPOF_M800, HPOF_P800, HPOF_M800, 241 HPOF_P1200, HPOF_M1200, HPOF_P1200, HPOF_M1200, 242 0, 0, 0, 0, 243 }; 244 245 struct buf rhpbuf[NHP]; 246 struct buf bhpbuf[NHP]; 247 struct dkbad hpbad[NHP]; 248 249 struct hpsoftc { 250 u_char sc_hpinit; /* drive initialized */ 251 u_char sc_recal; /* recalibrate state */ 252 u_char sc_hdr; /* next i/o includes header */ 253 u_char sc_doseeks; /* perform explicit seeks */ 254 daddr_t sc_mlsize; /* ML11 size */ 255 int sc_blkdone; /* amount sucessfully transfered */ 256 daddr_t sc_badbn; /* replacement block number */ 257 } hpsoftc[NHP]; 258 259 #define b_cylin b_resid 260 261 /* #define ML11 0 to remove ML11 support */ 262 #define ML11 (hptypes[mi->mi_type] == MBDT_ML11A) 263 #define RP06 (hptypes[mi->mi_type] <= MBDT_RP06) 264 #define RM80 (hptypes[mi->mi_type] == MBDT_RM80) 265 266 #define hpunit(dev) (minor(dev) >> 3) 267 #define MASKREG(reg) ((reg)&0xffff) 268 #define HPWAIT(mi, addr) (((addr)->hpds & HPDS_DRY) || hpwait(mi)) 269 270 /*ARGSUSED*/ 271 hpattach(mi, slave) 272 register struct mba_device *mi; 273 { 274 275 mi->mi_type = hpmaptype(mi); 276 if (!ML11 && mi->mi_dk >= 0) { 277 struct hpst *st = &hpst[mi->mi_type]; 278 279 dk_mspw[mi->mi_dk] = 1.0 / 60 / (st->nsect * 256); 280 } 281 } 282 283 /* 284 * Map apparent MASSBUS drive type into manufacturer 285 * specific configuration. For SI controllers this is done 286 * based on codes in the serial number register. For 287 * EMULEX controllers, the track and sector attributes are 288 * used when the drive type is an RM02 (not supported by DEC). 289 */ 290 hpmaptype(mi) 291 register struct mba_device *mi; 292 { 293 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 294 register int type = mi->mi_type; 295 296 /* 297 * Model-byte processing for SI controllers. 298 * NB: Only deals with RM03 and RM05 emulations. 299 */ 300 if (type == HPDT_RM03 || type == HPDT_RM05) { 301 int hpsn = hpaddr->hpsn; 302 303 if ((hpsn & SIMB_LU) != mi->mi_drive) 304 return (type); 305 switch ((hpsn & SIMB_MB) & ~(SIMB_S6|SIRM03|SIRM05)) { 306 307 case SI9775D: 308 printf("hp%d: 9775 (direct)\n", mi->mi_unit); 309 type = HPDT_9775; 310 break; 311 312 case SI9730D: 313 printf("hp%d: 9730 (direct)\n", mi->mi_unit); 314 type = HPDT_9730; 315 break; 316 317 /* 318 * Beware, since the only SI controller we 319 * have has a 9300 instead of a 9766, we map the 320 * drive type into the 9300. This means that 321 * on a 9766 you lose the last 8 cylinders (argh). 322 */ 323 case SI9766: 324 printf("hp%d: 9300\n", mi->mi_unit); 325 type = HPDT_9300; 326 break; 327 328 case SI9762: 329 printf("hp%d: 9762\n", mi->mi_unit); 330 type = HPDT_RM03; 331 break; 332 333 case SICAPD: 334 printf("hp%d: capricorn\n", mi->mi_unit); 335 type = HPDT_CAPRICORN; 336 break; 337 338 case SI9751D: 339 printf("hp%d: eagle\n", mi->mi_unit); 340 type = HPDT_EAGLE; 341 break; 342 } 343 return (type); 344 } 345 346 /* 347 * EMULEX SC750 or SC780. Poke the holding register. 348 */ 349 if (type == HPDT_RM02) { 350 int ntracks, nsectors; 351 352 hpaddr->hpof = HPOF_FMT22; 353 mbclrattn(mi); 354 hpaddr->hpcs1 = HP_NOP; 355 hpaddr->hphr = HPHR_MAXTRAK; 356 ntracks = MASKREG(hpaddr->hphr) + 1; 357 if (ntracks == 16) { 358 printf("hp%d: capricorn\n", mi->mi_unit); 359 type = HPDT_CAPRICORN; 360 goto done; 361 } 362 if (ntracks == 19) { 363 printf("hp%d: 9300\n", mi->mi_unit); 364 type = HPDT_9300; 365 goto done; 366 } 367 hpaddr->hpcs1 = HP_NOP; 368 hpaddr->hphr = HPHR_MAXSECT; 369 nsectors = MASKREG(hpaddr->hphr) + 1; 370 if (ntracks == 20 && nsectors == 48) { 371 type = HPDT_EAGLE; 372 printf("hp%d: eagle\n", mi->mi_unit); 373 goto done; 374 } 375 printf("hp%d: ntracks %d, nsectors %d: unknown device\n", 376 mi->mi_unit, ntracks, nsectors); 377 done: 378 hpaddr->hpcs1 = HP_DCLR|HP_GO; 379 mbclrattn(mi); /* conservative */ 380 return (type); 381 } 382 383 /* 384 * Map all ML11's to the same type. Also calculate 385 * transfer rates based on device characteristics. 386 */ 387 if (type == HPDT_ML11A || type == HPDT_ML11B) { 388 register struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 389 register int trt; 390 391 sc->sc_mlsize = hpaddr->hpmr & HPMR_SZ; 392 if ((hpaddr->hpmr & HPMR_ARRTYP) == 0) 393 sc->sc_mlsize >>= 2; 394 if (mi->mi_dk >= 0) { 395 trt = (hpaddr->hpmr & HPMR_TRT) >> 8; 396 dk_mspw[mi->mi_dk] = 1.0 / (1<<(20-trt)); 397 } 398 type = HPDT_ML11A; 399 } 400 return (type); 401 } 402 403 hpopen(dev) 404 dev_t dev; 405 { 406 register int unit = hpunit(dev); 407 register struct mba_device *mi; 408 409 if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0) 410 return (ENXIO); 411 return (0); 412 } 413 414 hpstrategy(bp) 415 register struct buf *bp; 416 { 417 register struct mba_device *mi; 418 register struct hpst *st; 419 register int unit; 420 long sz; 421 int xunit = minor(bp->b_dev) & 07; 422 int s; 423 424 sz = bp->b_bcount; 425 sz = (sz+511) >> 9; 426 unit = hpunit(bp->b_dev); 427 if (unit >= NHP) { 428 bp->b_error = ENXIO; 429 goto bad; 430 } 431 mi = hpinfo[unit]; 432 if (mi == 0 || mi->mi_alive == 0) { 433 bp->b_error = ENXIO; 434 goto bad; 435 } 436 st = &hpst[mi->mi_type]; 437 if (ML11) { 438 struct hpsoftc *sc = &hpsoftc[unit]; 439 440 if (bp->b_blkno < 0 || 441 bp->b_blkno+sz > sc->sc_mlsize) { 442 if (bp->b_blkno == sc->sc_mlsize) { 443 bp->b_resid = bp->b_bcount; 444 goto done; 445 } 446 bp->b_error = EINVAL; 447 goto bad; 448 } 449 bp->b_cylin = 0; 450 } else { 451 if (bp->b_blkno < 0 || 452 bp->b_blkno+sz > st->sizes[xunit].nblocks) { 453 if (bp->b_blkno == st->sizes[xunit].nblocks) { 454 bp->b_resid = bp->b_bcount; 455 goto done; 456 } 457 bp->b_error = EINVAL; 458 goto bad; 459 } 460 bp->b_cylin = bp->b_blkno/st->nspc + st->sizes[xunit].cyloff; 461 } 462 s = spl5(); 463 disksort(&mi->mi_tab, bp); 464 if (mi->mi_tab.b_active == 0) 465 mbustart(mi); 466 splx(s); 467 return; 468 469 bad: 470 bp->b_flags |= B_ERROR; 471 done: 472 iodone(bp); 473 return; 474 } 475 476 hpustart(mi) 477 register struct mba_device *mi; 478 { 479 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 480 register struct buf *bp = mi->mi_tab.b_actf; 481 register struct hpst *st; 482 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 483 daddr_t bn; 484 int sn, tn, dist; 485 486 st = &hpst[mi->mi_type]; 487 hpaddr->hpcs1 = 0; 488 if ((hpaddr->hpcs1&HP_DVA) == 0) 489 return (MBU_BUSY); 490 491 switch (sc->sc_recal) { 492 493 case 1: 494 HPWAIT(mi, hpaddr); 495 hpaddr->hpdc = bp->b_cylin; 496 hpaddr->hpcs1 = HP_SEEK|HP_GO; 497 sc->sc_recal++; 498 return (MBU_STARTED); 499 case 2: 500 break; 501 } 502 sc->sc_recal = 0; 503 if ((hpaddr->hpds & HPDS_VV) == 0 || !sc->sc_hpinit) { 504 struct buf *bbp = &bhpbuf[mi->mi_unit]; 505 506 sc->sc_hpinit = 1; 507 hpaddr->hpcs1 = HP_DCLR|HP_GO; 508 if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive)) 509 printf("DCLR attn\n"); 510 hpaddr->hpcs1 = HP_PRESET|HP_GO; 511 if (!ML11) 512 hpaddr->hpof = HPOF_FMT22; 513 mbclrattn(mi); 514 if (!ML11) { 515 bbp->b_flags = B_READ|B_BUSY; 516 bbp->b_dev = bp->b_dev; 517 bbp->b_bcount = 512; 518 bbp->b_un.b_addr = (caddr_t)&hpbad[mi->mi_unit]; 519 bbp->b_blkno = st->ncyl*st->nspc - st->nsect; 520 bbp->b_cylin = st->ncyl - 1; 521 mi->mi_tab.b_actf = bbp; 522 bbp->av_forw = bp; 523 bp = bbp; 524 } 525 } 526 if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1) { 527 if (mi->mi_tab.b_errcnt >= 16 && (bp->b_flags & B_READ)) { 528 hpaddr->hpof = 529 hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22; 530 hpaddr->hpcs1 = HP_OFFSET|HP_GO; 531 HPWAIT(mi, hpaddr); 532 mbclrattn(mi); 533 } 534 return (MBU_DODATA); 535 } 536 if (ML11) 537 return (MBU_DODATA); 538 if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY) 539 return (MBU_DODATA); 540 bn = bp->b_blkno; 541 sn = bn % st->nspc; 542 tn = sn / st->nsect; 543 sn = sn % st->nsect; 544 if (bp->b_cylin == MASKREG(hpaddr->hpdc)) { 545 if (sc->sc_doseeks) 546 return (MBU_DODATA); 547 dist = sn - (MASKREG(hpaddr->hpla) >> 6) - 1; 548 if (dist < 0) 549 dist += st->nsect; 550 if (dist > st->maxdist || dist < st->mindist) 551 return (MBU_DODATA); 552 } else 553 hpaddr->hpdc = bp->b_cylin; 554 if (sc->sc_doseeks) 555 hpaddr->hpcs1 = HP_SEEK|HP_GO; 556 else { 557 sn = (sn + st->nsect - st->sdist) % st->nsect; 558 hpaddr->hpda = (tn << 8) + sn; 559 hpaddr->hpcs1 = HP_SEARCH|HP_GO; 560 } 561 return (MBU_STARTED); 562 } 563 564 hpstart(mi) 565 register struct mba_device *mi; 566 { 567 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 568 register struct buf *bp = mi->mi_tab.b_actf; 569 register struct hpst *st = &hpst[mi->mi_type]; 570 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 571 daddr_t bn; 572 int sn, tn, cn; 573 574 if (ML11) 575 hpaddr->hpda = bp->b_blkno + sc->sc_blkdone; 576 else { 577 if (bp->b_flags & B_BAD) { 578 bn = sc->sc_badbn; 579 cn = bn / st->nspc; 580 } else { 581 bn = bp->b_blkno; 582 cn = bp->b_cylin; 583 } 584 sn = bn % st->nspc; 585 if ((bp->b_flags & B_BAD) == 0) 586 sn += sc->sc_blkdone; 587 tn = sn / st->nsect; 588 sn %= st->nsect; 589 cn += tn / st->ntrak; 590 tn %= st->ntrak; 591 hpaddr->hpda = (tn << 8) + sn; 592 hpaddr->hpdc = cn; 593 } 594 if (sc->sc_hdr) { 595 if (bp->b_flags & B_READ) 596 return (HP_RHDR|HP_GO); 597 else 598 return (HP_WHDR|HP_GO); 599 } 600 return (0); 601 } 602 603 hpdtint(mi, mbsr) 604 register struct mba_device *mi; 605 int mbsr; 606 { 607 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 608 register struct buf *bp = mi->mi_tab.b_actf; 609 register struct hpst *st; 610 register int er1, er2; 611 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 612 int retry = 0, i; 613 614 st = &hpst[mi->mi_type]; 615 if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) { 616 er1 = hpaddr->hper1; 617 er2 = hpaddr->hper2; 618 if (HPWAIT(mi, hpaddr) == 0) 619 goto hard; 620 #ifdef HPDEBUG 621 if (hpdebug) { 622 int dc = hpaddr->hpdc, da = hpaddr->hpda; 623 624 log(LOG_DEBUG, 625 "hperr: bp %x cyl %d blk %d blkdone %d as %o dc %x da %x\n", 626 bp, bp->b_cylin, bp->b_blkno, sc->sc_blkdone, 627 hpaddr->hpas&0xff, MASKREG(dc), MASKREG(da)); 628 log(LOG_DEBUG, "errcnt %d mbsr=%b er1=%b er2=%b\n", 629 mi->mi_tab.b_errcnt, mbsr, mbsr_bits, 630 MASKREG(er1), HPER1_BITS, 631 MASKREG(er2), HPER2_BITS); 632 } 633 #endif 634 if (er1 & HPER1_HCRC) { 635 er1 &= ~(HPER1_HCE|HPER1_FER); 636 er2 &= ~HPER2_BSE; 637 } 638 if (er1 & HPER1_WLE) { 639 log(LOG_WARNING, "hp%d: write locked\n", 640 hpunit(bp->b_dev)); 641 bp->b_flags |= B_ERROR; 642 } else if (sc->sc_hdr) { 643 goto hard; 644 } else if (RM80 && er2&HPER2_SSE) { 645 (void) hpecc(mi, SSE); 646 return (MBD_RESTARTED); 647 } else if ((er2 & HPER2_BSE) && !ML11) { 648 if (hpecc(mi, BSE)) 649 return (MBD_RESTARTED); 650 goto hard; 651 } else if (MASKREG(er1) == HPER1_FER && RP06) { 652 if (hpecc(mi, BSE)) 653 return (MBD_RESTARTED); 654 goto hard; 655 } else if ((er1 & (HPER1_DCK | HPER1_ECH)) == HPER1_DCK && 656 mi->mi_tab.b_errcnt >= 3) { 657 if (hpecc(mi, ECC)) 658 return (MBD_RESTARTED); 659 /* else done */ 660 } else if ((er1 & HPER1_HCRC) && !ML11 && hpecc(mi, BSE)) { 661 /* 662 * HCRC means the header is screwed up and the sector 663 * might well exist in the bad sector table, 664 * better check.... 665 */ 666 return (MBD_RESTARTED); 667 } else if (++mi->mi_tab.b_errcnt > 27 || 668 (ML11 && mi->mi_tab.b_errcnt > 15) || 669 mbsr & MBSR_HARD || 670 er1 & HPER1_HARD || 671 (!ML11 && (er2 & HPER2_HARD))) { 672 hard: 673 if (bp->b_flags & B_BAD) 674 bp->b_blkno = sc->sc_badbn; 675 else { 676 bp->b_blkno = bp->b_blkno + btop(bp->b_bcount - 677 MASKREG(-mi->mi_mba->mba_bcr)); 678 if (er1 & (HPER1_DCK | HPER1_ECH)) 679 bp->b_blkno--; 680 } 681 harderr(bp, "hp"); 682 if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC))) 683 printf("mbsr=%b ", mbsr, mbsr_bits); 684 printf("er1=%b er2=%b", 685 MASKREG(hpaddr->hper1), HPER1_BITS, 686 MASKREG(hpaddr->hper2), HPER2_BITS); 687 if (sc->sc_hdr) 688 printf(" (hdr i/o)"); 689 printf("\n"); 690 bp->b_flags |= B_ERROR; 691 bp->b_flags &= ~B_BAD; 692 } else 693 retry = 1; 694 hpaddr->hpcs1 = HP_DCLR|HP_GO; 695 if ((mi->mi_tab.b_errcnt & 07) == 4) { 696 hpaddr->hpcs1 = HP_RECAL|HP_GO; 697 sc->sc_recal = 1; 698 return (MBD_REPOSITION); 699 } 700 } 701 #ifdef HPDEBUG 702 else 703 if (hpdebug && sc->sc_recal) { 704 log(LOG_DEBUG, 705 "recal %d errcnt %d mbsr=%b er1=%b er2=%b\n", 706 sc->sc_recal, mi->mi_tab.b_errcnt, mbsr, mbsr_bits, 707 hpaddr->hper1, HPER1_BITS, 708 hpaddr->hper2, HPER2_BITS); 709 } 710 #endif 711 HPWAIT(mi, hpaddr); 712 if (retry) 713 return (MBD_RETRY); 714 if (mi->mi_tab.b_errcnt >= 16) { 715 /* 716 * This is fast and occurs rarely; we don't 717 * bother with interrupts. 718 */ 719 hpaddr->hpcs1 = HP_RTC|HP_GO; 720 HPWAIT(mi, hpaddr); 721 mbclrattn(mi); 722 } 723 if (mi->mi_tab.b_errcnt) 724 log(LOG_INFO, "hp%d%c: %d retries %sing sn%d\n", 725 hpunit(bp->b_dev), 'a'+(minor(bp->b_dev)&07), 726 mi->mi_tab.b_errcnt, 727 (bp->b_flags & B_READ) ? "read" : "writ", 728 (bp->b_flags & B_BAD) ? 729 sc->sc_badbn : bp->b_blkno + sc->sc_blkdone); 730 if ((bp->b_flags & B_BAD) && hpecc(mi, CONT)) 731 return (MBD_RESTARTED); 732 sc->sc_hdr = 0; 733 sc->sc_blkdone = 0; 734 bp->b_resid = MASKREG(-mi->mi_mba->mba_bcr); 735 if (!ML11) { 736 hpaddr->hpof = HPOF_FMT22; 737 hpaddr->hpcs1 = HP_RELEASE|HP_GO; 738 } 739 return (MBD_DONE); 740 } 741 742 /* 743 * Wait (for a bit) for a drive to come ready; 744 * returns nonzero on success. 745 */ 746 hpwait(mi) 747 register struct mba_device *mi; 748 { 749 register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv; 750 register i = 100000; 751 752 while ((hpaddr->hpds & HPDS_DRY) == 0 && --i) 753 DELAY(10); 754 if (i == 0) 755 printf("hp%d: intr, not ready\n", mi->mi_unit); 756 return (i); 757 } 758 759 hpread(dev, uio) 760 dev_t dev; 761 struct uio *uio; 762 { 763 register int unit = hpunit(dev); 764 765 if (unit >= NHP) 766 return (ENXIO); 767 return (physio(hpstrategy, &rhpbuf[unit], dev, B_READ, minphys, uio)); 768 } 769 770 hpwrite(dev, uio) 771 dev_t dev; 772 struct uio *uio; 773 { 774 register int unit = hpunit(dev); 775 776 if (unit >= NHP) 777 return (ENXIO); 778 return (physio(hpstrategy, &rhpbuf[unit], dev, B_WRITE, minphys, uio)); 779 } 780 781 /*ARGSUSED*/ 782 hpioctl(dev, cmd, data, flag) 783 dev_t dev; 784 int cmd; 785 caddr_t data; 786 int flag; 787 { 788 789 switch (cmd) { 790 791 case DKIOCHDR: /* do header read/write */ 792 hpsoftc[hpunit(dev)].sc_hdr = 1; 793 return (0); 794 795 default: 796 return (ENXIO); 797 } 798 } 799 800 hpecc(mi, flag) 801 register struct mba_device *mi; 802 int flag; 803 { 804 register struct mba_regs *mbp = mi->mi_mba; 805 register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv; 806 register struct buf *bp = mi->mi_tab.b_actf; 807 register struct hpst *st = &hpst[mi->mi_type]; 808 struct hpsoftc *sc = &hpsoftc[mi->mi_unit]; 809 int npf, o; 810 int bn, cn, tn, sn; 811 int bcr; 812 813 bcr = MASKREG(-mbp->mba_bcr); 814 if (bp->b_flags & B_BAD) 815 npf = bp->b_error; 816 else 817 npf = btop(bp->b_bcount - bcr); 818 o = (int)bp->b_un.b_addr & PGOFSET; 819 bn = bp->b_blkno; 820 cn = bp->b_cylin; 821 sn = bn%(st->nspc) + npf; 822 tn = sn/st->nsect; 823 sn %= st->nsect; 824 cn += tn/st->ntrak; 825 tn %= st->ntrak; 826 bn += npf; 827 switch (flag) { 828 case ECC: { 829 register int i; 830 caddr_t addr; 831 struct pte mpte; 832 int bit, byte, mask; 833 834 npf--; /* because block in error is previous block */ 835 bn--; 836 if (bp->b_flags & B_BAD) 837 bn = sc->sc_badbn; 838 log(LOG_WARNING, "hp%d%c: soft ecc sn%d\n", hpunit(bp->b_dev), 839 'a'+(minor(bp->b_dev)&07), bn); 840 mask = MASKREG(rp->hpec2); 841 i = MASKREG(rp->hpec1) - 1; /* -1 makes 0 origin */ 842 bit = i&07; 843 i = (i&~07)>>3; 844 byte = i + o; 845 while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { 846 mpte = mbp->mba_map[npf+btop(byte)]; 847 addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET); 848 putmemc(addr, getmemc(addr)^(mask<<bit)); 849 byte++; 850 i++; 851 bit -= 8; 852 } 853 if (bcr == 0) 854 return (0); 855 npf++; 856 break; 857 } 858 859 case SSE: 860 rp->hpof |= HPOF_SSEI; 861 if (bp->b_flags & B_BAD) { 862 bn = sc->sc_badbn; 863 goto fixregs; 864 } 865 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 866 break; 867 868 case BSE: 869 if (rp->hpof & HPOF_SSEI) 870 sn++; 871 #ifdef HPBDEBUG 872 if (hpbdebug) 873 log(LOG_DEBUG, "hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); 874 #endif 875 if (bp->b_flags & B_BAD) 876 return (0); 877 if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0) 878 return (0); 879 bp->b_flags |= B_BAD; 880 bp->b_error = npf + 1; 881 rp->hpof &= ~HPOF_SSEI; 882 bn = st->ncyl*st->nspc - st->nsect - 1 - bn; 883 sc->sc_badbn = bn; 884 fixregs: 885 cn = bn/st->nspc; 886 sn = bn%st->nspc; 887 tn = sn/st->nsect; 888 sn %= st->nsect; 889 mbp->mba_bcr = -(min(512, bp->b_bcount - (int)ptob(npf))); 890 #ifdef HPBDEBUG 891 if (hpbdebug) 892 log(LOG_DEBUG, "revector to cn %d tn %d sn %d\n", cn, tn, sn); 893 #endif 894 break; 895 896 case CONT: 897 #ifdef HPBDEBUG 898 if (hpbdebug) 899 log(LOG_DEBUG, "hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn); 900 #endif 901 bp->b_flags &= ~B_BAD; 902 if ((int)ptob(npf) >= bp->b_bcount) 903 return (0); 904 mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf)); 905 break; 906 } 907 rp->hpcs1 = HP_DCLR|HP_GO; 908 if (rp->hpof & HPOF_SSEI) 909 sn++; 910 rp->hpdc = cn; 911 rp->hpda = (tn<<8) + sn; 912 mbp->mba_sr = -1; 913 mbp->mba_var = (int)ptob(npf) + o; 914 rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO; 915 mi->mi_tab.b_errcnt = 0; /* error has been corrected */ 916 sc->sc_blkdone = npf; 917 return (1); 918 } 919 920 #define DBSIZE 20 921 922 hpdump(dev) 923 dev_t dev; 924 { 925 register struct mba_device *mi; 926 register struct mba_regs *mba; 927 struct hpdevice *hpaddr; 928 char *start; 929 int num, unit; 930 register struct hpst *st; 931 932 num = maxfree; 933 start = 0; 934 unit = hpunit(dev); 935 if (unit >= NHP) 936 return (ENXIO); 937 #define phys(a,b) ((b)((int)(a)&0x7fffffff)) 938 mi = phys(hpinfo[unit],struct mba_device *); 939 if (mi == 0 || mi->mi_alive == 0) 940 return (ENXIO); 941 mba = phys(mi->mi_hd, struct mba_hd *)->mh_physmba; 942 mba->mba_cr = MBCR_INIT; 943 hpaddr = (struct hpdevice *)&mba->mba_drv[mi->mi_drive]; 944 if ((hpaddr->hpds & HPDS_VV) == 0) { 945 hpaddr->hpcs1 = HP_DCLR|HP_GO; 946 hpaddr->hpcs1 = HP_PRESET|HP_GO; 947 hpaddr->hpof = HPOF_FMT22; 948 } 949 st = &hpst[mi->mi_type]; 950 if (dumplo < 0) 951 return (EINVAL); 952 if (dumplo + num >= st->sizes[minor(dev)&07].nblocks) 953 num = st->sizes[minor(dev)&07].nblocks - dumplo; 954 while (num > 0) { 955 register struct pte *hpte = mba->mba_map; 956 register int i; 957 int blk, cn, sn, tn; 958 daddr_t bn; 959 960 blk = num > DBSIZE ? DBSIZE : num; 961 bn = dumplo + btop(start); 962 cn = bn/st->nspc + st->sizes[minor(dev)&07].cyloff; 963 sn = bn%st->nspc; 964 tn = sn/st->nsect; 965 sn = sn%st->nsect; 966 hpaddr->hpdc = cn; 967 hpaddr->hpda = (tn << 8) + sn; 968 for (i = 0; i < blk; i++) 969 *(int *)hpte++ = (btop(start)+i) | PG_V; 970 mba->mba_sr = -1; 971 mba->mba_bcr = -(blk*NBPG); 972 mba->mba_var = 0; 973 hpaddr->hpcs1 = HP_WCOM | HP_GO; 974 while ((hpaddr->hpds & HPDS_DRY) == 0) 975 DELAY(10); 976 if (hpaddr->hpds&HPDS_ERR) 977 return (EIO); 978 start += blk*NBPG; 979 num -= blk; 980 } 981 return (0); 982 } 983 984 hpsize(dev) 985 dev_t dev; 986 { 987 int unit = hpunit(dev); 988 struct mba_device *mi; 989 struct hpst *st; 990 991 if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0) 992 return (-1); 993 st = &hpst[mi->mi_type]; 994 return ((int)st->sizes[minor(dev) & 07].nblocks); 995 } 996 #endif 997