1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Chris Torek. 7 * 8 * %sccs.include.redist.c% 9 * 10 * @(#)uda.c 7.28 (Berkeley) 06/28/90 11 */ 12 13 /* 14 * UDA50/MSCP device driver 15 */ 16 17 #define POLLSTATS 18 19 /* 20 * TODO 21 * write bad block forwarding code 22 */ 23 24 #include "ra.h" 25 26 #if NUDA > 0 27 28 /* 29 * CONFIGURATION OPTIONS. The next three defines are tunable -- tune away! 30 * 31 * COMPAT_42 enables 4.2/4.3 compatibility (label mapping) 32 * 33 * NRSPL2 and NCMDL2 control the number of response and command 34 * packets respectively. They may be any value from 0 to 7, though 35 * setting them higher than 5 is unlikely to be of any value. 36 * If you get warnings about your command ring being too small, 37 * try increasing the values by one. 38 * 39 * MAXUNIT controls the maximum unit number (number of drives per 40 * controller) we are prepared to handle. 41 * 42 * DEFAULT_BURST must be at least 1. 43 */ 44 #define COMPAT_42 45 46 #define NRSPL2 5 /* log2 number of response packets */ 47 #define NCMDL2 5 /* log2 number of command packets */ 48 #define MAXUNIT 8 /* maximum allowed unit number */ 49 #define DEFAULT_BURST 4 /* default DMA burst size */ 50 51 #include "param.h" 52 #include "systm.h" 53 #include "buf.h" 54 #include "conf.h" 55 #include "file.h" 56 #include "ioctl.h" 57 #include "user.h" 58 #include "map.h" 59 #include "vm.h" 60 #include "dkstat.h" 61 #include "cmap.h" 62 #include "disklabel.h" 63 #include "syslog.h" 64 #include "stat.h" 65 66 #include "machine/pte.h" 67 68 #include "../vax/cpu.h" 69 #include "ubareg.h" 70 #include "ubavar.h" 71 72 #define NRSP (1 << NRSPL2) 73 #define NCMD (1 << NCMDL2) 74 75 #include "udareg.h" 76 #include "../vax/mscp.h" 77 #include "../vax/mscpvar.h" 78 #include "../vax/mtpr.h" 79 80 /* 81 * UDA communications area and MSCP packet pools, per controller. 82 */ 83 struct uda { 84 struct udaca uda_ca; /* communications area */ 85 struct mscp uda_rsp[NRSP]; /* response packets */ 86 struct mscp uda_cmd[NCMD]; /* command packets */ 87 } uda[NUDA]; 88 89 /* 90 * Software status, per controller. 91 */ 92 struct uda_softc { 93 struct uda *sc_uda; /* Unibus address of uda struct */ 94 short sc_state; /* UDA50 state; see below */ 95 short sc_flags; /* flags; see below */ 96 int sc_micro; /* microcode revision */ 97 int sc_ivec; /* interrupt vector address */ 98 short sc_ipl; /* interrupt priority, Q-bus */ 99 struct mscp_info sc_mi;/* MSCP info (per mscpvar.h) */ 100 #ifndef POLLSTATS 101 int sc_wticks; /* watchdog timer ticks */ 102 #else 103 short sc_wticks; 104 short sc_ncmd; 105 #endif 106 } uda_softc[NUDA]; 107 108 #ifdef POLLSTATS 109 struct udastats { 110 int ncmd; 111 int cmd[NCMD + 1]; 112 } udastats = { NCMD + 1 }; 113 #endif 114 115 /* 116 * Controller states 117 */ 118 #define ST_IDLE 0 /* uninitialised */ 119 #define ST_STEP1 1 /* in `STEP 1' */ 120 #define ST_STEP2 2 /* in `STEP 2' */ 121 #define ST_STEP3 3 /* in `STEP 3' */ 122 #define ST_SETCHAR 4 /* in `Set Controller Characteristics' */ 123 #define ST_RUN 5 /* up and running */ 124 125 /* 126 * Flags 127 */ 128 #define SC_MAPPED 0x01 /* mapped in Unibus I/O space */ 129 #define SC_INSTART 0x02 /* inside udastart() */ 130 #define SC_GRIPED 0x04 /* griped about cmd ring too small */ 131 #define SC_INSLAVE 0x08 /* inside udaslave() */ 132 #define SC_DOWAKE 0x10 /* wakeup when ctlr init done */ 133 #define SC_STARTPOLL 0x20 /* need to initiate polling */ 134 135 /* 136 * Device to unit number and partition and back 137 */ 138 #define UNITSHIFT 3 139 #define UNITMASK 7 140 #define udaunit(dev) (minor(dev) >> UNITSHIFT) 141 #define udapart(dev) (minor(dev) & UNITMASK) 142 #define udaminor(u, p) (((u) << UNITSHIFT) | (p)) 143 144 /* 145 * Drive status, per drive 146 */ 147 struct ra_info { 148 daddr_t ra_dsize; /* size in sectors */ 149 /* u_long ra_type; /* drive type */ 150 u_long ra_mediaid; /* media id */ 151 int ra_state; /* open/closed state */ 152 struct ra_geom { /* geometry information */ 153 u_short rg_nsectors; /* sectors/track */ 154 u_short rg_ngroups; /* track groups */ 155 u_short rg_ngpc; /* groups/cylinder */ 156 u_short rg_ntracks; /* ngroups*ngpc */ 157 u_short rg_ncyl; /* ra_dsize/ntracks/nsectors */ 158 #ifdef notyet 159 u_short rg_rctsize; /* size of rct */ 160 u_short rg_rbns; /* replacement blocks per track */ 161 u_short rg_nrct; /* number of rct copies */ 162 #endif 163 } ra_geom; 164 int ra_wlabel; /* label sector is currently writable */ 165 u_long ra_openpart; /* partitions open */ 166 u_long ra_bopenpart; /* block partitions open */ 167 u_long ra_copenpart; /* character partitions open */ 168 } ra_info[NRA]; 169 170 /* 171 * Software state, per drive 172 */ 173 #define CLOSED 0 174 #define WANTOPEN 1 175 #define RDLABEL 2 176 #define OPEN 3 177 #define OPENRAW 4 178 179 /* 180 * Definition of the driver for autoconf. 181 */ 182 int udaprobe(), udaslave(), udaattach(), udadgo(), udaintr(); 183 struct uba_ctlr *udaminfo[NUDA]; 184 struct uba_device *udadinfo[NRA]; 185 struct disklabel udalabel[NRA]; 186 187 u_short udastd[] = { 0772150, 0772550, 0777550, 0 }; 188 struct uba_driver udadriver = 189 { udaprobe, udaslave, udaattach, udadgo, udastd, "ra", udadinfo, "uda", 190 udaminfo }; 191 192 /* 193 * More driver definitions, for generic MSCP code. 194 */ 195 int udadgram(), udactlrdone(), udaunconf(), udaiodone(); 196 int udaonline(), udagotstatus(), udaioerror(), udareplace(), udabb(); 197 198 struct buf udautab[NRA]; /* per drive transfer queue */ 199 200 struct mscp_driver udamscpdriver = 201 { MAXUNIT, NRA, UNITSHIFT, udautab, udalabel, udadinfo, 202 udadgram, udactlrdone, udaunconf, udaiodone, 203 udaonline, udagotstatus, udareplace, udaioerror, udabb, 204 "uda", "ra" }; 205 206 /* 207 * Miscellaneous private variables. 208 */ 209 char udasr_bits[] = UDASR_BITS; 210 211 struct uba_device *udaip[NUDA][MAXUNIT]; 212 /* inverting pointers: ctlr & unit => Unibus 213 device pointer */ 214 215 int udaburst[NUDA] = { 0 }; /* burst size, per UDA50, zero => default; 216 in data space so patchable via adb */ 217 218 struct mscp udaslavereply; /* get unit status response packet, set 219 for udaslave by udaunconf, via udaintr */ 220 221 static struct uba_ctlr *probeum;/* this is a hack---autoconf should pass ctlr 222 info to slave routine; instead, we remember 223 the last ctlr argument to probe */ 224 225 int udawstart, udawatch(); /* watchdog timer */ 226 227 /* 228 * Externals 229 */ 230 int wakeup(); 231 int hz; 232 233 /* 234 * Poke at a supposed UDA50 to see if it is there. 235 * This routine duplicates some of the code in udainit() only 236 * because autoconf has not set up the right information yet. 237 * We have to do everything `by hand'. 238 */ 239 udaprobe(reg, ctlr, um) 240 caddr_t reg; 241 int ctlr; 242 struct uba_ctlr *um; 243 { 244 register int br, cvec; 245 register struct uda_softc *sc; 246 register struct udadevice *udaddr; 247 register struct mscp_info *mi; 248 int timeout, tries, s; 249 250 #ifdef VAX750 251 /* 252 * The UDA50 wants to share BDPs on 750s, but not on 780s or 253 * 8600s. (730s have no BDPs anyway.) Toward this end, we 254 * here set the `keep bdp' flag in the per-driver information 255 * if this is a 750. (We just need to do it once, but it is 256 * easiest to do it now, for each UDA50.) 257 */ 258 if (cpu == VAX_750) 259 udadriver.ud_keepbdp = 1; 260 #endif 261 262 probeum = um; /* remember for udaslave() */ 263 #ifdef lint 264 br = 0; cvec = br; br = cvec; udaintr(0); 265 #endif 266 /* 267 * Set up the controller-specific generic MSCP driver info. 268 * Note that this should really be done in the (nonexistent) 269 * controller attach routine. 270 */ 271 sc = &uda_softc[ctlr]; 272 mi = &sc->sc_mi; 273 mi->mi_md = &udamscpdriver; 274 mi->mi_ctlr = um->um_ctlr; 275 mi->mi_tab = &um->um_tab; 276 mi->mi_ip = udaip[ctlr]; 277 mi->mi_cmd.mri_size = NCMD; 278 mi->mi_cmd.mri_desc = uda[ctlr].uda_ca.ca_cmddsc; 279 mi->mi_cmd.mri_ring = uda[ctlr].uda_cmd; 280 mi->mi_rsp.mri_size = NRSP; 281 mi->mi_rsp.mri_desc = uda[ctlr].uda_ca.ca_rspdsc; 282 mi->mi_rsp.mri_ring = uda[ctlr].uda_rsp; 283 mi->mi_wtab.av_forw = mi->mi_wtab.av_back = &mi->mi_wtab; 284 285 /* 286 * More controller specific variables. Again, this should 287 * be in the controller attach routine. 288 */ 289 if (udaburst[ctlr] == 0) 290 udaburst[ctlr] = DEFAULT_BURST; 291 292 /* 293 * Get an interrupt vector. Note that even if the controller 294 * does not respond, we keep the vector. This is not a serious 295 * problem; but it would be easily fixed if we had a controller 296 * attach routine. Sigh. 297 */ 298 sc->sc_ivec = (uba_hd[numuba].uh_lastiv -= 4); 299 udaddr = (struct udadevice *) reg; 300 301 /* 302 * Initialise the controller (partially). The UDA50 programmer's 303 * manual states that if initialisation fails, it should be retried 304 * at least once, but after a second failure the port should be 305 * considered `down'; it also mentions that the controller should 306 * initialise within ten seconds. Or so I hear; I have not seen 307 * this manual myself. 308 */ 309 #ifdef QBA 310 s = spl6(); 311 #endif 312 tries = 0; 313 again: 314 udaddr->udaip = 0; /* start initialisation */ 315 timeout = todr() + 1000; /* timeout in 10 seconds */ 316 while ((udaddr->udasa & UDA_STEP1) == 0) 317 if (todr() > timeout) 318 goto bad; 319 udaddr->udasa = UDA_ERR | (NCMDL2 << 11) | (NRSPL2 << 8) | UDA_IE | 320 (sc->sc_ivec >> 2); 321 while ((udaddr->udasa & UDA_STEP2) == 0) 322 if (todr() > timeout) 323 goto bad; 324 325 /* should have interrupted by now */ 326 #ifdef QBA 327 sc->sc_ipl = br = qbgetpri(); 328 #endif 329 return (sizeof (struct udadevice)); 330 bad: 331 if (++tries < 2) 332 goto again; 333 splx(s); 334 return (0); 335 } 336 337 /* 338 * Find a slave. We allow wildcard slave numbers (something autoconf 339 * is not really prepared to deal with); and we need to know the 340 * controller number to talk to the UDA. For the latter, we keep 341 * track of the last controller probed, since a controller probe 342 * immediately precedes all slave probes for that controller. For the 343 * former, we simply put the unit number into ui->ui_slave after we 344 * have found one. 345 * 346 * Note that by the time udaslave is called, the interrupt vector 347 * for the UDA50 has been set up (so that udaunconf() will be called). 348 */ 349 udaslave(ui, reg) 350 register struct uba_device *ui; 351 caddr_t reg; 352 { 353 register struct uba_ctlr *um = probeum; 354 register struct mscp *mp; 355 register struct uda_softc *sc; 356 int next = 0, timeout, tries, i; 357 358 #ifdef lint 359 i = 0; i = i; 360 #endif 361 /* 362 * Make sure the controller is fully initialised, by waiting 363 * for it if necessary. 364 */ 365 sc = &uda_softc[um->um_ctlr]; 366 if (sc->sc_state == ST_RUN) 367 goto findunit; 368 tries = 0; 369 again: 370 if (udainit(ui->ui_ctlr)) 371 return (0); 372 timeout = todr() + 1000; /* 10 seconds */ 373 while (todr() < timeout) 374 if (sc->sc_state == ST_RUN) /* made it */ 375 goto findunit; 376 if (++tries < 2) 377 goto again; 378 printf("uda%d: controller hung\n", um->um_ctlr); 379 return (0); 380 381 /* 382 * The controller is all set; go find the unit. Grab an 383 * MSCP packet and send out a Get Unit Status command, with 384 * the `next unit' modifier if we are looking for a generic 385 * unit. We set the `in slave' flag so that udaunconf() 386 * knows to copy the response to `udaslavereply'. 387 */ 388 findunit: 389 udaslavereply.mscp_opcode = 0; 390 sc->sc_flags |= SC_INSLAVE; 391 if ((mp = mscp_getcp(&sc->sc_mi, MSCP_DONTWAIT)) == NULL) 392 panic("udaslave"); /* `cannot happen' */ 393 mp->mscp_opcode = M_OP_GETUNITST; 394 if (ui->ui_slave == '?') { 395 mp->mscp_unit = next; 396 mp->mscp_modifier = M_GUM_NEXTUNIT; 397 } else { 398 mp->mscp_unit = ui->ui_slave; 399 mp->mscp_modifier = 0; 400 } 401 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 402 i = ((struct udadevice *) reg)->udaip; /* initiate polling */ 403 mp = &udaslavereply; 404 timeout = todr() + 1000; 405 while (todr() < timeout) 406 if (mp->mscp_opcode) 407 goto gotit; 408 printf("uda%d: no response to Get Unit Status request\n", 409 um->um_ctlr); 410 sc->sc_flags &= ~SC_INSLAVE; 411 return (0); 412 413 gotit: 414 sc->sc_flags &= ~SC_INSLAVE; 415 416 /* 417 * Got a slave response. If the unit is there, use it. 418 */ 419 switch (mp->mscp_status & M_ST_MASK) { 420 421 case M_ST_SUCCESS: /* worked */ 422 case M_ST_AVAILABLE: /* found another drive */ 423 break; /* use it */ 424 425 case M_ST_OFFLINE: 426 /* 427 * Figure out why it is off line. It may be because 428 * it is nonexistent, or because it is spun down, or 429 * for some other reason. 430 */ 431 switch (mp->mscp_status & ~M_ST_MASK) { 432 433 case M_OFFLINE_UNKNOWN: 434 /* 435 * No such drive, and there are none with 436 * higher unit numbers either, if we are 437 * using M_GUM_NEXTUNIT. 438 */ 439 return (0); 440 441 case M_OFFLINE_UNMOUNTED: 442 /* 443 * The drive is not spun up. Use it anyway. 444 * 445 * N.B.: this seems to be a common occurrance 446 * after a power failure. The first attempt 447 * to bring it on line seems to spin it up 448 * (and thus takes several minutes). Perhaps 449 * we should note here that the on-line may 450 * take longer than usual. 451 */ 452 break; 453 454 default: 455 /* 456 * In service, or something else equally unusable. 457 */ 458 printf("uda%d: unit %d off line: ", um->um_ctlr, 459 mp->mscp_unit); 460 mscp_printevent(mp); 461 goto try_another; 462 } 463 break; 464 465 default: 466 printf("uda%d: unable to get unit status: ", um->um_ctlr); 467 mscp_printevent(mp); 468 return (0); 469 } 470 471 /* 472 * Does this ever happen? What (if anything) does it mean? 473 */ 474 if (mp->mscp_unit < next) { 475 printf("uda%d: unit %d, next %d\n", 476 um->um_ctlr, mp->mscp_unit, next); 477 return (0); 478 } 479 480 if (mp->mscp_unit >= MAXUNIT) { 481 printf("uda%d: cannot handle unit number %d (max is %d)\n", 482 um->um_ctlr, mp->mscp_unit, MAXUNIT - 1); 483 return (0); 484 } 485 486 /* 487 * See if we already handle this drive. 488 * (Only likely if ui->ui_slave=='?'.) 489 */ 490 if (udaip[um->um_ctlr][mp->mscp_unit] != NULL) { 491 try_another: 492 if (ui->ui_slave != '?') 493 return (0); 494 next = mp->mscp_unit + 1; 495 goto findunit; 496 } 497 498 /* 499 * Voila! 500 */ 501 uda_rasave(ui->ui_unit, mp, 0); 502 ui->ui_flags = 0; /* not on line, nor anything else */ 503 ui->ui_slave = mp->mscp_unit; 504 return (1); 505 } 506 507 /* 508 * Attach a found slave. Make sure the watchdog timer is running. 509 * If this disk is being profiled, fill in the `wpms' value (used by 510 * what?). Set up the inverting pointer, and attempt to bring the 511 * drive on line and read its label. 512 */ 513 udaattach(ui) 514 register struct uba_device *ui; 515 { 516 register int unit = ui->ui_unit; 517 518 if (udawstart == 0) { 519 timeout(udawatch, (caddr_t) 0, hz); 520 udawstart++; 521 } 522 523 /* 524 * Floppies cannot be brought on line unless there is 525 * a disk in the drive. Since an ONLINE while cold 526 * takes ten seconds to fail, and (when notyet becomes now) 527 * no sensible person will swap to one, we just 528 * defer the ONLINE until someone tries to use the drive. 529 * 530 * THIS ASSUMES THAT DRIVE TYPES ?X? ARE FLOPPIES 531 */ 532 if (MSCP_MID_ECH(1, ra_info[unit].ra_mediaid) == 'X' - '@') { 533 printf(": floppy"); 534 return; 535 } 536 if (ui->ui_dk >= 0) 537 dk_wpms[ui->ui_dk] = (60 * 31 * 256); /* approx */ 538 udaip[ui->ui_ctlr][ui->ui_slave] = ui; 539 540 if (uda_rainit(ui, 0)) 541 printf(": offline"); 542 else if (ra_info[unit].ra_state == OPEN) { 543 printf(": %s, size = %d sectors", 544 udalabel[unit].d_typename, ra_info[unit].ra_dsize); 545 #ifdef notyet 546 addswap(makedev(UDADEVNUM, udaminor(unit, 0)), &udalabel[unit]); 547 #endif 548 } 549 } 550 551 /* 552 * Initialise a UDA50. Return true iff something goes wrong. 553 */ 554 udainit(ctlr) 555 int ctlr; 556 { 557 register struct uda_softc *sc; 558 register struct udadevice *udaddr; 559 struct uba_ctlr *um; 560 int timo, ubinfo; 561 562 sc = &uda_softc[ctlr]; 563 um = udaminfo[ctlr]; 564 if ((sc->sc_flags & SC_MAPPED) == 0) { 565 /* 566 * Map the communication area and command and 567 * response packets into Unibus space. 568 */ 569 ubinfo = uballoc(um->um_ubanum, (caddr_t) &uda[ctlr], 570 sizeof (struct uda), UBA_CANTWAIT); 571 if (ubinfo == 0) { 572 printf("uda%d: uballoc map failed\n", ctlr); 573 return (-1); 574 } 575 sc->sc_uda = (struct uda *) UBAI_ADDR(ubinfo); 576 sc->sc_flags |= SC_MAPPED; 577 } 578 579 /* 580 * While we are thinking about it, reset the next command 581 * and response indicies. 582 */ 583 sc->sc_mi.mi_cmd.mri_next = 0; 584 sc->sc_mi.mi_rsp.mri_next = 0; 585 586 /* 587 * Start up the hardware initialisation sequence. 588 */ 589 #define STEP0MASK (UDA_ERR | UDA_STEP4 | UDA_STEP3 | UDA_STEP2 | \ 590 UDA_STEP1 | UDA_NV) 591 592 sc->sc_state = ST_IDLE; /* in case init fails */ 593 udaddr = (struct udadevice *)um->um_addr; 594 udaddr->udaip = 0; 595 timo = todr() + 1000; 596 while ((udaddr->udasa & STEP0MASK) == 0) { 597 if (todr() > timo) { 598 printf("uda%d: timeout during init\n", ctlr); 599 return (-1); 600 } 601 } 602 if ((udaddr->udasa & STEP0MASK) != UDA_STEP1) { 603 printf("uda%d: init failed, sa=%b\n", ctlr, 604 udaddr->udasa, udasr_bits); 605 udasaerror(um, 0); 606 return (-1); 607 } 608 609 /* 610 * Success! Record new state, and start step 1 initialisation. 611 * The rest is done in the interrupt handler. 612 */ 613 sc->sc_state = ST_STEP1; 614 udaddr->udasa = UDA_ERR | (NCMDL2 << 11) | (NRSPL2 << 8) | UDA_IE | 615 (sc->sc_ivec >> 2); 616 return (0); 617 } 618 619 /* 620 * Open a drive. 621 */ 622 /*ARGSUSED*/ 623 udaopen(dev, flag, fmt) 624 dev_t dev; 625 int flag, fmt; 626 { 627 register int unit; 628 register struct uba_device *ui; 629 register struct uda_softc *sc; 630 register struct disklabel *lp; 631 register struct partition *pp; 632 register struct ra_info *ra; 633 int s, i, part, mask, error = 0; 634 daddr_t start, end; 635 636 /* 637 * Make sure this is a reasonable open request. 638 */ 639 unit = udaunit(dev); 640 if (unit >= NRA || (ui = udadinfo[unit]) == 0 || ui->ui_alive == 0) 641 return (ENXIO); 642 643 /* 644 * Make sure the controller is running, by (re)initialising it if 645 * necessary. 646 */ 647 sc = &uda_softc[ui->ui_ctlr]; 648 s = spl5(); 649 if (sc->sc_state != ST_RUN) { 650 if (sc->sc_state == ST_IDLE && udainit(ui->ui_ctlr)) { 651 splx(s); 652 return (EIO); 653 } 654 /* 655 * In case it does not come up, make sure we will be 656 * restarted in 10 seconds. This corresponds to the 657 * 10 second timeouts in udaprobe() and udaslave(). 658 */ 659 sc->sc_flags |= SC_DOWAKE; 660 timeout(wakeup, (caddr_t) sc, 10 * hz); 661 sleep((caddr_t) sc, PRIBIO); 662 if (sc->sc_state != ST_RUN) { 663 splx(s); 664 printf("uda%d: controller hung\n", ui->ui_ctlr); 665 return (EIO); 666 } 667 untimeout(wakeup, (caddr_t) sc); 668 } 669 670 /* 671 * Wait for the state to settle 672 */ 673 ra = &ra_info[unit]; 674 while (ra->ra_state != OPEN && ra->ra_state != OPENRAW && 675 ra->ra_state != CLOSED) 676 if (error = tsleep((caddr_t)ra, (PZERO + 1) | PCATCH, 677 devopn, 0)) { 678 splx(s); 679 return (error); 680 } 681 682 /* 683 * If not on line, or we are not sure of the label, reinitialise 684 * the drive. 685 */ 686 if ((ui->ui_flags & UNIT_ONLINE) == 0 || 687 (ra->ra_state != OPEN && ra->ra_state != OPENRAW)) 688 error = uda_rainit(ui, flag); 689 splx(s); 690 if (error) 691 return (error); 692 693 part = udapart(dev); 694 lp = &udalabel[unit]; 695 if (part >= lp->d_npartitions) 696 return (ENXIO); 697 /* 698 * Warn if a partition is opened that overlaps another 699 * already open, unless either is the `raw' partition 700 * (whole disk). 701 */ 702 #define RAWPART 2 /* 'c' partition */ /* XXX */ 703 mask = 1 << part; 704 if ((ra->ra_openpart & mask) == 0 && part != RAWPART) { 705 pp = &lp->d_partitions[part]; 706 start = pp->p_offset; 707 end = pp->p_offset + pp->p_size; 708 for (pp = lp->d_partitions, i = 0; 709 i < lp->d_npartitions; pp++, i++) { 710 if (pp->p_offset + pp->p_size <= start || 711 pp->p_offset >= end || i == RAWPART) 712 continue; 713 if (ra->ra_openpart & (1 << i)) 714 log(LOG_WARNING, 715 "ra%d%c: overlaps open partition (%c)\n", 716 unit, part + 'a', i + 'a'); 717 } 718 } 719 switch (fmt) { 720 case S_IFCHR: 721 ra->ra_copenpart |= mask; 722 break; 723 case S_IFBLK: 724 ra->ra_bopenpart |= mask; 725 break; 726 } 727 ra->ra_openpart |= mask; 728 return (0); 729 } 730 731 /* ARGSUSED */ 732 udaclose(dev, flags, fmt) 733 dev_t dev; 734 int flags, fmt; 735 { 736 register int unit = udaunit(dev); 737 register struct ra_info *ra = &ra_info[unit]; 738 int s, mask = (1 << udapart(dev)); 739 740 switch (fmt) { 741 case S_IFCHR: 742 ra->ra_copenpart &= ~mask; 743 break; 744 case S_IFBLK: 745 ra->ra_bopenpart &= ~mask; 746 break; 747 } 748 ra->ra_openpart = ra->ra_copenpart | ra->ra_bopenpart; 749 750 /* 751 * Should wait for I/O to complete on this partition even if 752 * others are open, but wait for work on blkflush(). 753 */ 754 if (ra->ra_openpart == 0) { 755 s = spl5(); 756 while (udautab[unit].b_actf) 757 sleep((caddr_t)&udautab[unit], PZERO - 1); 758 splx(s); 759 ra->ra_state = CLOSED; 760 ra->ra_wlabel = 0; 761 } 762 return (0); 763 } 764 765 /* 766 * Initialise a drive. If it is not already, bring it on line, 767 * and set a timeout on it in case it fails to respond. 768 * When on line, read in the pack label. 769 */ 770 uda_rainit(ui, flags) 771 register struct uba_device *ui; 772 int flags; 773 { 774 register struct uda_softc *sc = &uda_softc[ui->ui_ctlr]; 775 register struct disklabel *lp; 776 register struct mscp *mp; 777 register int unit = ui->ui_unit; 778 register struct ra_info *ra; 779 char *msg, *readdisklabel(); 780 int s, i, udastrategy(); 781 extern int cold; 782 783 ra = &ra_info[unit]; 784 if ((ui->ui_flags & UNIT_ONLINE) == 0) { 785 mp = mscp_getcp(&sc->sc_mi, MSCP_WAIT); 786 mp->mscp_opcode = M_OP_ONLINE; 787 mp->mscp_unit = ui->ui_slave; 788 mp->mscp_cmdref = (long)&ui->ui_flags; 789 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 790 ra->ra_state = WANTOPEN; 791 if (!cold) 792 s = spl5(); 793 i = ((struct udadevice *)ui->ui_addr)->udaip; 794 795 if (cold) { 796 i = todr() + 1000; 797 while ((ui->ui_flags & UNIT_ONLINE) == 0) 798 if (todr() > i) 799 break; 800 } else { 801 timeout(wakeup, (caddr_t)&ui->ui_flags, 10 * hz); 802 sleep((caddr_t)&ui->ui_flags, PSWP + 1); 803 splx(s); 804 untimeout(wakeup, (caddr_t)&ui->ui_flags); 805 } 806 if (ra->ra_state != OPENRAW) { 807 ra->ra_state = CLOSED; 808 wakeup((caddr_t)ra); 809 return (EIO); 810 } 811 } 812 813 lp = &udalabel[unit]; 814 lp->d_secsize = DEV_BSIZE; 815 lp->d_secperunit = ra->ra_dsize; 816 817 if (flags & O_NDELAY) 818 return (0); 819 ra->ra_state = RDLABEL; 820 /* 821 * Set up default sizes until we have the label, or longer 822 * if there is none. Set secpercyl, as readdisklabel wants 823 * to compute b_cylin (although we do not need it), and set 824 * nsectors in case diskerr is called. 825 */ 826 lp->d_secpercyl = 1; 827 lp->d_npartitions = 1; 828 lp->d_secsize = 512; 829 lp->d_secperunit = ra->ra_dsize; 830 lp->d_nsectors = ra->ra_geom.rg_nsectors; 831 lp->d_partitions[0].p_size = lp->d_secperunit; 832 lp->d_partitions[0].p_offset = 0; 833 834 /* 835 * Read pack label. 836 */ 837 if ((msg = readdisklabel(udaminor(unit, 0), udastrategy, lp)) != NULL) { 838 if (cold) 839 printf(": %s", msg); 840 else 841 log(LOG_ERR, "ra%d: %s", unit, msg); 842 #ifdef COMPAT_42 843 if (udamaptype(unit, lp)) 844 ra->ra_state = OPEN; 845 else 846 ra->ra_state = OPENRAW; 847 #else 848 ra->ra_state = OPENRAW; 849 uda_makefakelabel(ra, lp); 850 #endif 851 } else 852 ra->ra_state = OPEN; 853 wakeup((caddr_t)ra); 854 return (0); 855 } 856 857 /* 858 * Copy the geometry information for the given ra from a 859 * GET UNIT STATUS response. If check, see if it changed. 860 */ 861 uda_rasave(unit, mp, check) 862 int unit; 863 register struct mscp *mp; 864 int check; 865 { 866 register struct ra_info *ra = &ra_info[unit]; 867 868 if (check && ra->ra_mediaid != mp->mscp_guse.guse_mediaid) { 869 printf("ra%d: changed types! was %d now %d\n", unit, 870 ra->ra_mediaid, mp->mscp_guse.guse_mediaid); 871 ra->ra_state = CLOSED; /* ??? */ 872 } 873 /* ra->ra_type = mp->mscp_guse.guse_drivetype; */ 874 ra->ra_mediaid = mp->mscp_guse.guse_mediaid; 875 ra->ra_geom.rg_nsectors = mp->mscp_guse.guse_nspt; 876 ra->ra_geom.rg_ngroups = mp->mscp_guse.guse_group; 877 ra->ra_geom.rg_ngpc = mp->mscp_guse.guse_ngpc; 878 ra->ra_geom.rg_ntracks = ra->ra_geom.rg_ngroups * ra->ra_geom.rg_ngpc; 879 /* ra_geom.rg_ncyl cannot be computed until we have ra_dsize */ 880 #ifdef notyet 881 ra->ra_geom.rg_rctsize = mp->mscp_guse.guse_rctsize; 882 ra->ra_geom.rg_rbns = mp->mscp_guse.guse_nrpt; 883 ra->ra_geom.rg_nrct = mp->mscp_guse.guse_nrct; 884 #endif 885 } 886 887 /* 888 * Queue a transfer request, and if possible, hand it to the controller. 889 * 890 * This routine is broken into two so that the internal version 891 * udastrat1() can be called by the (nonexistent, as yet) bad block 892 * revectoring routine. 893 */ 894 udastrategy(bp) 895 register struct buf *bp; 896 { 897 register int unit; 898 register struct uba_device *ui; 899 register struct ra_info *ra; 900 struct partition *pp; 901 int p; 902 daddr_t sz, maxsz; 903 904 /* 905 * Make sure this is a reasonable drive to use. 906 */ 907 if ((unit = udaunit(bp->b_dev)) >= NRA || 908 (ui = udadinfo[unit]) == NULL || ui->ui_alive == 0 || 909 (ra = &ra_info[unit])->ra_state == CLOSED) { 910 bp->b_error = ENXIO; 911 goto bad; 912 } 913 914 /* 915 * If drive is open `raw' or reading label, let it at it. 916 */ 917 if (ra->ra_state < OPEN) { 918 udastrat1(bp); 919 return; 920 } 921 p = udapart(bp->b_dev); 922 if ((ra->ra_openpart & (1 << p)) == 0) { 923 bp->b_error = ENODEV; 924 goto bad; 925 } 926 927 /* 928 * Determine the size of the transfer, and make sure it is 929 * within the boundaries of the partition. 930 */ 931 pp = &udalabel[unit].d_partitions[p]; 932 maxsz = pp->p_size; 933 if (pp->p_offset + pp->p_size > ra->ra_dsize) 934 maxsz = ra->ra_dsize - pp->p_offset; 935 sz = (bp->b_bcount + DEV_BSIZE - 1) >> DEV_BSHIFT; 936 if (bp->b_blkno + pp->p_offset <= LABELSECTOR && 937 #if LABELSECTOR != 0 938 bp->b_blkno + pp->p_offset + sz > LABELSECTOR && 939 #endif 940 (bp->b_flags & B_READ) == 0 && ra->ra_wlabel == 0) { 941 bp->b_error = EROFS; 942 goto bad; 943 } 944 if (bp->b_blkno < 0 || bp->b_blkno + sz > maxsz) { 945 /* if exactly at end of disk, return an EOF */ 946 if (bp->b_blkno == maxsz) { 947 bp->b_resid = bp->b_bcount; 948 biodone(bp); 949 return; 950 } 951 /* or truncate if part of it fits */ 952 sz = maxsz - bp->b_blkno; 953 if (sz <= 0) { 954 bp->b_error = EINVAL; /* or hang it up */ 955 goto bad; 956 } 957 bp->b_bcount = sz << DEV_BSHIFT; 958 } 959 udastrat1(bp); 960 return; 961 bad: 962 bp->b_flags |= B_ERROR; 963 biodone(bp); 964 } 965 966 /* 967 * Work routine for udastrategy. 968 */ 969 udastrat1(bp) 970 register struct buf *bp; 971 { 972 register int unit = udaunit(bp->b_dev); 973 register struct uba_ctlr *um; 974 register struct buf *dp; 975 struct uba_device *ui; 976 int s = spl5(); 977 978 /* 979 * Append the buffer to the drive queue, and if it is not 980 * already there, the drive to the controller queue. (However, 981 * if the drive queue is marked to be requeued, we must be 982 * awaiting an on line or get unit status command; in this 983 * case, leave it off the controller queue.) 984 */ 985 um = (ui = udadinfo[unit])->ui_mi; 986 dp = &udautab[unit]; 987 APPEND(bp, dp, av_forw); 988 if (dp->b_active == 0 && (ui->ui_flags & UNIT_REQUEUE) == 0) { 989 APPEND(dp, &um->um_tab, b_forw); 990 dp->b_active++; 991 } 992 993 /* 994 * Start activity on the controller. Note that unlike other 995 * Unibus drivers, we must always do this, not just when the 996 * controller is not active. 997 */ 998 udastart(um); 999 splx(s); 1000 } 1001 1002 /* 1003 * Start up whatever transfers we can find. 1004 * Note that udastart() must be called at spl5(). 1005 */ 1006 udastart(um) 1007 register struct uba_ctlr *um; 1008 { 1009 register struct uda_softc *sc = &uda_softc[um->um_ctlr]; 1010 register struct buf *bp, *dp; 1011 register struct mscp *mp; 1012 struct uba_device *ui; 1013 struct udadevice *udaddr; 1014 struct partition *pp; 1015 int i, sz; 1016 1017 #ifdef lint 1018 i = 0; i = i; 1019 #endif 1020 /* 1021 * If it is not running, try (again and again...) to initialise 1022 * it. If it is currently initialising just ignore it for now. 1023 */ 1024 if (sc->sc_state != ST_RUN) { 1025 if (sc->sc_state == ST_IDLE && udainit(um->um_ctlr)) 1026 printf("uda%d: still hung\n", um->um_ctlr); 1027 return; 1028 } 1029 1030 /* 1031 * If um_cmd is nonzero, this controller is on the Unibus 1032 * resource wait queue. It will not help to try more requests; 1033 * instead, when the Unibus unblocks and calls udadgo(), we 1034 * will call udastart() again. 1035 */ 1036 if (um->um_cmd) 1037 return; 1038 1039 sc->sc_flags |= SC_INSTART; 1040 udaddr = (struct udadevice *) um->um_addr; 1041 1042 loop: 1043 /* 1044 * Service the drive at the head of the queue. It may not 1045 * need anything, in which case it might be shutting down 1046 * in udaclose(). 1047 */ 1048 if ((dp = um->um_tab.b_actf) == NULL) 1049 goto out; 1050 if ((bp = dp->b_actf) == NULL) { 1051 dp->b_active = 0; 1052 um->um_tab.b_actf = dp->b_forw; 1053 if (ra_info[dp - udautab].ra_openpart == 0) 1054 wakeup((caddr_t)dp); /* finish close protocol */ 1055 goto loop; 1056 } 1057 1058 if (udaddr->udasa & UDA_ERR) { /* ctlr fatal error */ 1059 udasaerror(um, 1); 1060 goto out; 1061 } 1062 1063 /* 1064 * Get an MSCP packet, then figure out what to do. If 1065 * we cannot get a command packet, the command ring may 1066 * be too small: We should have at least as many command 1067 * packets as credits, for best performance. 1068 */ 1069 if ((mp = mscp_getcp(&sc->sc_mi, MSCP_DONTWAIT)) == NULL) { 1070 if (sc->sc_mi.mi_credits > MSCP_MINCREDITS && 1071 (sc->sc_flags & SC_GRIPED) == 0) { 1072 log(LOG_NOTICE, "uda%d: command ring too small\n", 1073 um->um_ctlr); 1074 sc->sc_flags |= SC_GRIPED;/* complain only once */ 1075 } 1076 goto out; 1077 } 1078 1079 /* 1080 * Bring the drive on line if it is not already. Get its status 1081 * if we do not already have it. Otherwise just start the transfer. 1082 */ 1083 ui = udadinfo[udaunit(bp->b_dev)]; 1084 if ((ui->ui_flags & UNIT_ONLINE) == 0) { 1085 mp->mscp_opcode = M_OP_ONLINE; 1086 goto common; 1087 } 1088 if ((ui->ui_flags & UNIT_HAVESTATUS) == 0) { 1089 mp->mscp_opcode = M_OP_GETUNITST; 1090 common: 1091 if (ui->ui_flags & UNIT_REQUEUE) panic("udastart"); 1092 /* 1093 * Take the drive off the controller queue. When the 1094 * command finishes, make sure the drive is requeued. 1095 */ 1096 um->um_tab.b_actf = dp->b_forw; 1097 dp->b_active = 0; 1098 ui->ui_flags |= UNIT_REQUEUE; 1099 mp->mscp_unit = ui->ui_slave; 1100 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 1101 sc->sc_flags |= SC_STARTPOLL; 1102 #ifdef POLLSTATS 1103 sc->sc_ncmd++; 1104 #endif 1105 goto loop; 1106 } 1107 1108 pp = &udalabel[ui->ui_unit].d_partitions[udapart(bp->b_dev)]; 1109 mp->mscp_opcode = (bp->b_flags & B_READ) ? M_OP_READ : M_OP_WRITE; 1110 mp->mscp_unit = ui->ui_slave; 1111 mp->mscp_seq.seq_lbn = bp->b_blkno + pp->p_offset; 1112 sz = (bp->b_bcount + DEV_BSIZE - 1) >> DEV_BSHIFT; 1113 mp->mscp_seq.seq_bytecount = bp->b_blkno + sz > pp->p_size ? 1114 (pp->p_size - bp->b_blkno) >> DEV_BSHIFT : bp->b_bcount; 1115 /* mscp_cmdref is filled in by mscp_go() */ 1116 1117 /* 1118 * Drop the packet pointer into the `command' field so udadgo() 1119 * can tell what to start. If ubago returns 1, we can do another 1120 * transfer. If not, um_cmd will still point at mp, so we will 1121 * know that we are waiting for resources. 1122 */ 1123 um->um_cmd = (int)mp; 1124 if (ubago(ui)) 1125 goto loop; 1126 1127 /* 1128 * All done, or blocked in ubago(). If we managed to 1129 * issue some commands, start up the beast. 1130 */ 1131 out: 1132 if (sc->sc_flags & SC_STARTPOLL) { 1133 #ifdef POLLSTATS 1134 udastats.cmd[sc->sc_ncmd]++; 1135 sc->sc_ncmd = 0; 1136 #endif 1137 i = ((struct udadevice *)um->um_addr)->udaip; 1138 } 1139 sc->sc_flags &= ~(SC_INSTART | SC_STARTPOLL); 1140 } 1141 1142 /* 1143 * Start a transfer. 1144 * 1145 * If we are not called from within udastart(), we must have been 1146 * blocked, so call udastart to do more requests (if any). If 1147 * this calls us again immediately we will not recurse, because 1148 * that time we will be in udastart(). Clever.... 1149 */ 1150 udadgo(um) 1151 register struct uba_ctlr *um; 1152 { 1153 struct uda_softc *sc = &uda_softc[um->um_ctlr]; 1154 struct mscp *mp = (struct mscp *)um->um_cmd; 1155 1156 um->um_tab.b_active++; /* another transfer going */ 1157 1158 /* 1159 * Fill in the MSCP packet and move the buffer to the 1160 * I/O wait queue. Mark the controller as no longer on 1161 * the resource queue, and remember to initiate polling. 1162 */ 1163 mp->mscp_seq.seq_buffer = UBAI_ADDR(um->um_ubinfo) | 1164 (UBAI_BDP(um->um_ubinfo) << 24); 1165 mscp_go(&sc->sc_mi, mp, um->um_ubinfo); 1166 um->um_cmd = 0; 1167 um->um_ubinfo = 0; /* tyke it awye */ 1168 sc->sc_flags |= SC_STARTPOLL; 1169 #ifdef POLLSTATS 1170 sc->sc_ncmd++; 1171 #endif 1172 if ((sc->sc_flags & SC_INSTART) == 0) 1173 udastart(um); 1174 } 1175 1176 udaiodone(mi, bp, info) 1177 register struct mscp_info *mi; 1178 struct buf *bp; 1179 int info; 1180 { 1181 register struct uba_ctlr *um = udaminfo[mi->mi_ctlr]; 1182 1183 um->um_ubinfo = info; 1184 ubadone(um); 1185 biodone(bp); 1186 if (um->um_bdp && mi->mi_wtab.av_forw == &mi->mi_wtab) 1187 ubarelse(um->um_ubanum, &um->um_bdp); 1188 um->um_tab.b_active--; /* another transfer done */ 1189 } 1190 1191 static struct saerr { 1192 int code; /* error code (including UDA_ERR) */ 1193 char *desc; /* what it means: Efoo => foo error */ 1194 } saerr[] = { 1195 { 0100001, "Eunibus packet read" }, 1196 { 0100002, "Eunibus packet write" }, 1197 { 0100003, "EUDA ROM and RAM parity" }, 1198 { 0100004, "EUDA RAM parity" }, 1199 { 0100005, "EUDA ROM parity" }, 1200 { 0100006, "Eunibus ring read" }, 1201 { 0100007, "Eunibus ring write" }, 1202 { 0100010, " unibus interrupt master failure" }, 1203 { 0100011, "Ehost access timeout" }, 1204 { 0100012, " host exceeded command limit" }, 1205 { 0100013, " unibus bus master failure" }, 1206 { 0100014, " DM XFC fatal error" }, 1207 { 0100015, " hardware timeout of instruction loop" }, 1208 { 0100016, " invalid virtual circuit id" }, 1209 { 0100017, "Eunibus interrupt write" }, 1210 { 0104000, "Efatal sequence" }, 1211 { 0104040, " D proc ALU" }, 1212 { 0104041, "ED proc control ROM parity" }, 1213 { 0105102, "ED proc w/no BD#2 or RAM parity" }, 1214 { 0105105, "ED proc RAM buffer" }, 1215 { 0105152, "ED proc SDI" }, 1216 { 0105153, "ED proc write mode wrap serdes" }, 1217 { 0105154, "ED proc read mode serdes, RSGEN & ECC" }, 1218 { 0106040, "EU proc ALU" }, 1219 { 0106041, "EU proc control reg" }, 1220 { 0106042, " U proc DFAIL/cntl ROM parity/BD #1 test CNT" }, 1221 { 0106047, " U proc const PROM err w/D proc running SDI test" }, 1222 { 0106055, " unexpected trap" }, 1223 { 0106071, "EU proc const PROM" }, 1224 { 0106072, "EU proc control ROM parity" }, 1225 { 0106200, "Estep 1 data" }, 1226 { 0107103, "EU proc RAM parity" }, 1227 { 0107107, "EU proc RAM buffer" }, 1228 { 0107115, " test count wrong (BD 12)" }, 1229 { 0112300, "Estep 2" }, 1230 { 0122240, "ENPR" }, 1231 { 0122300, "Estep 3" }, 1232 { 0142300, "Estep 4" }, 1233 { 0, " unknown error code" } 1234 }; 1235 1236 /* 1237 * If the error bit was set in the controller status register, gripe, 1238 * then (optionally) reset the controller and requeue pending transfers. 1239 */ 1240 udasaerror(um, doreset) 1241 register struct uba_ctlr *um; 1242 int doreset; 1243 { 1244 register int code = ((struct udadevice *)um->um_addr)->udasa; 1245 register struct saerr *e; 1246 1247 if ((code & UDA_ERR) == 0) 1248 return; 1249 for (e = saerr; e->code; e++) 1250 if (e->code == code) 1251 break; 1252 printf("uda%d: controller error, sa=0%o (%s%s)\n", 1253 um->um_ctlr, code, e->desc + 1, 1254 *e->desc == 'E' ? " error" : ""); 1255 if (doreset) { 1256 mscp_requeue(&uda_softc[um->um_ctlr].sc_mi); 1257 (void) udainit(um->um_ctlr); 1258 } 1259 } 1260 1261 /* 1262 * Interrupt routine. Depending on the state of the controller, 1263 * continue initialisation, or acknowledge command and response 1264 * interrupts, and process responses. 1265 */ 1266 udaintr(ctlr) 1267 int ctlr; 1268 { 1269 register struct uba_ctlr *um = udaminfo[ctlr]; 1270 register struct uda_softc *sc = &uda_softc[ctlr]; 1271 register struct udadevice *udaddr = (struct udadevice *)um->um_addr; 1272 register struct uda *ud; 1273 register struct mscp *mp; 1274 register int i; 1275 1276 #ifdef QBA 1277 splx(sc->sc_ipl); /* Qbus interrupt protocol is odd */ 1278 #endif 1279 sc->sc_wticks = 0; /* reset interrupt watchdog */ 1280 1281 /* 1282 * Combinations during steps 1, 2, and 3: STEPnMASK 1283 * corresponds to which bits should be tested; 1284 * STEPnGOOD corresponds to the pattern that should 1285 * appear after the interrupt from STEPn initialisation. 1286 * All steps test the bits in ALLSTEPS. 1287 */ 1288 #define ALLSTEPS (UDA_ERR|UDA_STEP4|UDA_STEP3|UDA_STEP2|UDA_STEP1) 1289 1290 #define STEP1MASK (ALLSTEPS | UDA_IE | UDA_NCNRMASK) 1291 #define STEP1GOOD (UDA_STEP2 | UDA_IE | (NCMDL2 << 3) | NRSPL2) 1292 1293 #define STEP2MASK (ALLSTEPS | UDA_IE | UDA_IVECMASK) 1294 #define STEP2GOOD (UDA_STEP3 | UDA_IE | (sc->sc_ivec >> 2)) 1295 1296 #define STEP3MASK ALLSTEPS 1297 #define STEP3GOOD UDA_STEP4 1298 1299 switch (sc->sc_state) { 1300 1301 case ST_IDLE: 1302 /* 1303 * Ignore unsolicited interrupts. 1304 */ 1305 log(LOG_WARNING, "uda%d: stray intr\n", ctlr); 1306 return; 1307 1308 case ST_STEP1: 1309 /* 1310 * Begin step two initialisation. 1311 */ 1312 if ((udaddr->udasa & STEP1MASK) != STEP1GOOD) { 1313 i = 1; 1314 initfailed: 1315 printf("uda%d: init step %d failed, sa=%b\n", 1316 ctlr, i, udaddr->udasa, udasr_bits); 1317 udasaerror(um, 0); 1318 sc->sc_state = ST_IDLE; 1319 if (sc->sc_flags & SC_DOWAKE) { 1320 sc->sc_flags &= ~SC_DOWAKE; 1321 wakeup((caddr_t)sc); 1322 } 1323 return; 1324 } 1325 udaddr->udasa = (int)&sc->sc_uda->uda_ca.ca_rspdsc[0] | 1326 (cpu == VAX_780 || cpu == VAX_8600 ? UDA_PI : 0); 1327 sc->sc_state = ST_STEP2; 1328 return; 1329 1330 case ST_STEP2: 1331 /* 1332 * Begin step 3 initialisation. 1333 */ 1334 if ((udaddr->udasa & STEP2MASK) != STEP2GOOD) { 1335 i = 2; 1336 goto initfailed; 1337 } 1338 udaddr->udasa = ((int)&sc->sc_uda->uda_ca.ca_rspdsc[0]) >> 16; 1339 sc->sc_state = ST_STEP3; 1340 return; 1341 1342 case ST_STEP3: 1343 /* 1344 * Set controller characteristics (finish initialisation). 1345 */ 1346 if ((udaddr->udasa & STEP3MASK) != STEP3GOOD) { 1347 i = 3; 1348 goto initfailed; 1349 } 1350 i = udaddr->udasa & 0xff; 1351 if (i != sc->sc_micro) { 1352 sc->sc_micro = i; 1353 printf("uda%d: version %d model %d\n", 1354 ctlr, i & 0xf, i >> 4); 1355 } 1356 1357 /* 1358 * Present the burst size, then remove it. Why this 1359 * should be done this way, I have no idea. 1360 * 1361 * Note that this assumes udaburst[ctlr] > 0. 1362 */ 1363 udaddr->udasa = UDA_GO | (udaburst[ctlr] - 1) << 2; 1364 udaddr->udasa = UDA_GO; 1365 printf("uda%d: DMA burst size set to %d\n", 1366 ctlr, udaburst[ctlr]); 1367 1368 udainitds(ctlr); /* initialise data structures */ 1369 1370 /* 1371 * Before we can get a command packet, we need some 1372 * credits. Fake some up to keep mscp_getcp() happy, 1373 * get a packet, and cancel all credits (the right 1374 * number should come back in the response to the 1375 * SCC packet). 1376 */ 1377 sc->sc_mi.mi_credits = MSCP_MINCREDITS + 1; 1378 mp = mscp_getcp(&sc->sc_mi, MSCP_DONTWAIT); 1379 if (mp == NULL) /* `cannot happen' */ 1380 panic("udaintr"); 1381 sc->sc_mi.mi_credits = 0; 1382 mp->mscp_opcode = M_OP_SETCTLRC; 1383 mp->mscp_unit = 0; 1384 mp->mscp_sccc.sccc_ctlrflags = M_CF_ATTN | M_CF_MISC | 1385 M_CF_THIS; 1386 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 1387 i = udaddr->udaip; 1388 sc->sc_state = ST_SETCHAR; 1389 return; 1390 1391 case ST_SETCHAR: 1392 case ST_RUN: 1393 /* 1394 * Handle Set Ctlr Characteristics responses and operational 1395 * responses (via mscp_dorsp). 1396 */ 1397 break; 1398 1399 default: 1400 printf("uda%d: driver bug, state %d\n", ctlr, sc->sc_state); 1401 panic("udastate"); 1402 } 1403 1404 if (udaddr->udasa & UDA_ERR) { /* ctlr fatal error */ 1405 udasaerror(um, 1); 1406 return; 1407 } 1408 1409 ud = &uda[ctlr]; 1410 1411 /* 1412 * Handle buffer purge requests. 1413 */ 1414 if (ud->uda_ca.ca_bdp) { 1415 UBAPURGE(um->um_hd->uh_uba, ud->uda_ca.ca_bdp); 1416 ud->uda_ca.ca_bdp = 0; 1417 udaddr->udasa = 0; /* signal purge complete */ 1418 } 1419 1420 /* 1421 * Check for response and command ring transitions. 1422 */ 1423 if (ud->uda_ca.ca_rspint) { 1424 ud->uda_ca.ca_rspint = 0; 1425 mscp_dorsp(&sc->sc_mi); 1426 } 1427 if (ud->uda_ca.ca_cmdint) { 1428 ud->uda_ca.ca_cmdint = 0; 1429 MSCP_DOCMD(&sc->sc_mi); 1430 } 1431 udastart(um); 1432 } 1433 1434 /* 1435 * Initialise the various data structures that control the UDA50. 1436 */ 1437 udainitds(ctlr) 1438 int ctlr; 1439 { 1440 register struct uda *ud = &uda[ctlr]; 1441 register struct uda *uud = uda_softc[ctlr].sc_uda; 1442 register struct mscp *mp; 1443 register int i; 1444 1445 for (i = 0, mp = ud->uda_rsp; i < NRSP; i++, mp++) { 1446 ud->uda_ca.ca_rspdsc[i] = MSCP_OWN | MSCP_INT | 1447 (long)&uud->uda_rsp[i].mscp_cmdref; 1448 mp->mscp_addr = &ud->uda_ca.ca_rspdsc[i]; 1449 mp->mscp_msglen = MSCP_MSGLEN; 1450 } 1451 for (i = 0, mp = ud->uda_cmd; i < NCMD; i++, mp++) { 1452 ud->uda_ca.ca_cmddsc[i] = MSCP_INT | 1453 (long)&uud->uda_cmd[i].mscp_cmdref; 1454 mp->mscp_addr = &ud->uda_ca.ca_cmddsc[i]; 1455 mp->mscp_msglen = MSCP_MSGLEN; 1456 } 1457 } 1458 1459 /* 1460 * Handle an error datagram. 1461 */ 1462 udadgram(mi, mp) 1463 struct mscp_info *mi; 1464 struct mscp *mp; 1465 { 1466 1467 mscp_decodeerror(mi->mi_md->md_mname, mi->mi_ctlr, mp); 1468 /* 1469 * SDI status information bytes 10 and 11 are the microprocessor 1470 * error code and front panel code respectively. These vary per 1471 * drive type and are printed purely for field service information. 1472 */ 1473 if (mp->mscp_format == M_FM_SDI) 1474 printf("\tsdi uproc error code 0x%x, front panel code 0x%x\n", 1475 mp->mscp_erd.erd_sdistat[10], 1476 mp->mscp_erd.erd_sdistat[11]); 1477 } 1478 1479 /* 1480 * The Set Controller Characteristics command finished. 1481 * Record the new state of the controller. 1482 */ 1483 udactlrdone(mi, mp) 1484 register struct mscp_info *mi; 1485 struct mscp *mp; 1486 { 1487 register struct uda_softc *sc = &uda_softc[mi->mi_ctlr]; 1488 1489 if ((mp->mscp_status & M_ST_MASK) == M_ST_SUCCESS) 1490 sc->sc_state = ST_RUN; 1491 else { 1492 printf("uda%d: SETCTLRC failed: ", 1493 mi->mi_ctlr, mp->mscp_status); 1494 mscp_printevent(mp); 1495 sc->sc_state = ST_IDLE; 1496 } 1497 if (sc->sc_flags & SC_DOWAKE) { 1498 sc->sc_flags &= ~SC_DOWAKE; 1499 wakeup((caddr_t)sc); 1500 } 1501 } 1502 1503 /* 1504 * Received a response from an as-yet unconfigured drive. Configure it 1505 * in, if possible. 1506 */ 1507 udaunconf(mi, mp) 1508 struct mscp_info *mi; 1509 register struct mscp *mp; 1510 { 1511 1512 /* 1513 * If it is a slave response, copy it to udaslavereply for 1514 * udaslave() to look at. 1515 */ 1516 if (mp->mscp_opcode == (M_OP_GETUNITST | M_OP_END) && 1517 (uda_softc[mi->mi_ctlr].sc_flags & SC_INSLAVE) != 0) { 1518 udaslavereply = *mp; 1519 return (MSCP_DONE); 1520 } 1521 1522 /* 1523 * Otherwise, it had better be an available attention response. 1524 */ 1525 if (mp->mscp_opcode != M_OP_AVAILATTN) 1526 return (MSCP_FAILED); 1527 1528 /* do what autoconf does */ 1529 return (MSCP_FAILED); /* not yet, arwhite, not yet */ 1530 } 1531 1532 /* 1533 * A drive came on line. Check its type and size. Return DONE if 1534 * we think the drive is truly on line. In any case, awaken anyone 1535 * sleeping on the drive on-line-ness. 1536 */ 1537 udaonline(ui, mp) 1538 register struct uba_device *ui; 1539 struct mscp *mp; 1540 { 1541 register struct ra_info *ra = &ra_info[ui->ui_unit]; 1542 1543 wakeup((caddr_t)&ui->ui_flags); 1544 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 1545 if (!cold) 1546 printf("uda%d: ra%d", ui->ui_ctlr, ui->ui_unit); 1547 printf(": attempt to bring on line failed: "); 1548 mscp_printevent(mp); 1549 ra->ra_state = CLOSED; 1550 return (MSCP_FAILED); 1551 } 1552 1553 ra->ra_state = OPENRAW; 1554 ra->ra_dsize = (daddr_t)mp->mscp_onle.onle_unitsize; 1555 if (!cold) 1556 printf("ra%d: uda%d, unit %d, size = %d sectors\n", ui->ui_unit, 1557 ui->ui_ctlr, mp->mscp_unit, ra->ra_dsize); 1558 /* can now compute ncyl */ 1559 ra->ra_geom.rg_ncyl = ra->ra_dsize / ra->ra_geom.rg_ntracks / 1560 ra->ra_geom.rg_nsectors; 1561 return (MSCP_DONE); 1562 } 1563 1564 /* 1565 * We got some (configured) unit's status. Return DONE if it succeeded. 1566 */ 1567 udagotstatus(ui, mp) 1568 register struct uba_device *ui; 1569 register struct mscp *mp; 1570 { 1571 1572 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 1573 printf("uda%d: attempt to get status for ra%d failed: ", 1574 ui->ui_ctlr, ui->ui_unit); 1575 mscp_printevent(mp); 1576 return (MSCP_FAILED); 1577 } 1578 /* record for (future) bad block forwarding and whatever else */ 1579 uda_rasave(ui->ui_unit, mp, 1); 1580 return (MSCP_DONE); 1581 } 1582 1583 /* 1584 * A transfer failed. We get a chance to fix or restart it. 1585 * Need to write the bad block forwaring code first.... 1586 */ 1587 /*ARGSUSED*/ 1588 udaioerror(ui, mp, bp) 1589 register struct uba_device *ui; 1590 register struct mscp *mp; 1591 struct buf *bp; 1592 { 1593 1594 if (mp->mscp_flags & M_EF_BBLKR) { 1595 /* 1596 * A bad block report. Eventually we will 1597 * restart this transfer, but for now, just 1598 * log it and give up. 1599 */ 1600 log(LOG_ERR, "ra%d: bad block report: %d%s\n", 1601 ui->ui_unit, mp->mscp_seq.seq_lbn, 1602 mp->mscp_flags & M_EF_BBLKU ? " + others" : ""); 1603 } else { 1604 /* 1605 * What the heck IS a `serious exception' anyway? 1606 * IT SURE WOULD BE NICE IF DEC SOLD DOCUMENTATION 1607 * FOR THEIR OWN CONTROLLERS. 1608 */ 1609 if (mp->mscp_flags & M_EF_SEREX) 1610 log(LOG_ERR, "ra%d: serious exception reported\n", 1611 ui->ui_unit); 1612 } 1613 return (MSCP_FAILED); 1614 } 1615 1616 /* 1617 * A replace operation finished. 1618 */ 1619 /*ARGSUSED*/ 1620 udareplace(ui, mp) 1621 struct uba_device *ui; 1622 struct mscp *mp; 1623 { 1624 1625 panic("udareplace"); 1626 } 1627 1628 /* 1629 * A bad block related operation finished. 1630 */ 1631 /*ARGSUSED*/ 1632 udabb(ui, mp, bp) 1633 struct uba_device *ui; 1634 struct mscp *mp; 1635 struct buf *bp; 1636 { 1637 1638 panic("udabb"); 1639 } 1640 1641 1642 /* 1643 * I/O controls. 1644 */ 1645 udaioctl(dev, cmd, data, flag) 1646 dev_t dev; 1647 int cmd; 1648 caddr_t data; 1649 int flag; 1650 { 1651 register int unit = udaunit(dev); 1652 register struct disklabel *lp; 1653 register struct ra_info *ra = &ra_info[unit]; 1654 int error = 0; 1655 1656 lp = &udalabel[unit]; 1657 1658 switch (cmd) { 1659 1660 case DIOCGDINFO: 1661 *(struct disklabel *)data = *lp; 1662 break; 1663 1664 case DIOCGPART: 1665 ((struct partinfo *)data)->disklab = lp; 1666 ((struct partinfo *)data)->part = 1667 &lp->d_partitions[udapart(dev)]; 1668 break; 1669 1670 case DIOCSDINFO: 1671 if ((flag & FWRITE) == 0) 1672 error = EBADF; 1673 else 1674 error = setdisklabel(lp, (struct disklabel *)data, 1675 (ra->ra_state == OPENRAW) ? 0 : ra->ra_openpart); 1676 break; 1677 1678 case DIOCWLABEL: 1679 if ((flag & FWRITE) == 0) 1680 error = EBADF; 1681 else 1682 ra->ra_wlabel = *(int *)data; 1683 break; 1684 1685 case DIOCWDINFO: 1686 if ((flag & FWRITE) == 0) 1687 error = EBADF; 1688 else if ((error = setdisklabel(lp, (struct disklabel *)data, 1689 (ra->ra_state == OPENRAW) ? 0 : ra->ra_openpart)) == 0) { 1690 int wlab; 1691 1692 ra->ra_state = OPEN; 1693 /* simulate opening partition 0 so write succeeds */ 1694 ra->ra_openpart |= (1 << 0); /* XXX */ 1695 wlab = ra->ra_wlabel; 1696 ra->ra_wlabel = 1; 1697 error = writedisklabel(dev, udastrategy, lp); 1698 ra->ra_openpart = ra->ra_copenpart | ra->ra_bopenpart; 1699 ra->ra_wlabel = wlab; 1700 } 1701 break; 1702 1703 #ifdef notyet 1704 case UDAIOCREPLACE: 1705 /* 1706 * Initiate bad block replacement for the given LBN. 1707 * (Should we allow modifiers?) 1708 */ 1709 error = EOPNOTSUPP; 1710 break; 1711 1712 case UDAIOCGMICRO: 1713 /* 1714 * Return the microcode revision for the UDA50 running 1715 * this drive. 1716 */ 1717 *(int *)data = uda_softc[uddinfo[unit]->ui_ctlr].sc_micro; 1718 break; 1719 #endif 1720 1721 default: 1722 error = ENOTTY; 1723 break; 1724 } 1725 return (error); 1726 } 1727 1728 /* 1729 * A Unibus reset has occurred on UBA uban. Reinitialise the controller(s) 1730 * on that Unibus, and requeue outstanding I/O. 1731 */ 1732 udareset(uban) 1733 int uban; 1734 { 1735 register struct uba_ctlr *um; 1736 register struct uda_softc *sc; 1737 register int ctlr; 1738 1739 for (ctlr = 0, sc = uda_softc; ctlr < NUDA; ctlr++, sc++) { 1740 if ((um = udaminfo[ctlr]) == NULL || um->um_ubanum != uban || 1741 um->um_alive == 0) 1742 continue; 1743 printf(" uda%d", ctlr); 1744 1745 /* 1746 * Our BDP (if any) is gone; our command (if any) is 1747 * flushed; the device is no longer mapped; and the 1748 * UDA50 is not yet initialised. 1749 */ 1750 if (um->um_bdp) { 1751 printf("<%d>", UBAI_BDP(um->um_bdp)); 1752 um->um_bdp = 0; 1753 } 1754 um->um_ubinfo = 0; 1755 um->um_cmd = 0; 1756 sc->sc_flags &= ~SC_MAPPED; 1757 sc->sc_state = ST_IDLE; 1758 1759 /* reset queues and requeue pending transfers */ 1760 mscp_requeue(&sc->sc_mi); 1761 1762 /* 1763 * If it fails to initialise we will notice later and 1764 * try again (and again...). Do not call udastart() 1765 * here; it will be done after the controller finishes 1766 * initialisation. 1767 */ 1768 if (udainit(ctlr)) 1769 printf(" (hung)"); 1770 } 1771 } 1772 1773 /* 1774 * Watchdog timer: If the controller is active, and no interrupts 1775 * have occurred for 30 seconds, assume it has gone away. 1776 */ 1777 udawatch() 1778 { 1779 register int i; 1780 register struct uba_ctlr *um; 1781 register struct uda_softc *sc; 1782 1783 timeout(udawatch, (caddr_t) 0, hz); /* every second */ 1784 for (i = 0, sc = uda_softc; i < NUDA; i++, sc++) { 1785 if ((um = udaminfo[i]) == 0 || !um->um_alive) 1786 continue; 1787 if (sc->sc_state == ST_IDLE) 1788 continue; 1789 if (sc->sc_state == ST_RUN && !um->um_tab.b_active) 1790 sc->sc_wticks = 0; 1791 else if (++sc->sc_wticks >= 30) { 1792 sc->sc_wticks = 0; 1793 printf("uda%d: lost interrupt\n", i); 1794 ubareset(um->um_ubanum); 1795 } 1796 } 1797 } 1798 1799 /* 1800 * Do a panic dump. We set up the controller for one command packet 1801 * and one response packet, for which we use `struct uda1'. 1802 */ 1803 struct uda1 { 1804 struct uda1ca uda1_ca; /* communications area */ 1805 struct mscp uda1_rsp; /* response packet */ 1806 struct mscp uda1_cmd; /* command packet */ 1807 } uda1; 1808 1809 #define DBSIZE 32 /* dump 16K at a time */ 1810 1811 udadump(dev) 1812 dev_t dev; 1813 { 1814 struct udadevice *udaddr; 1815 struct uda1 *ud_ubaddr; 1816 char *start; 1817 int num, blk, unit, maxsz, blkoff, reg; 1818 struct partition *pp; 1819 register struct uba_regs *uba; 1820 register struct uba_device *ui; 1821 register struct uda1 *ud; 1822 register struct pte *io; 1823 register int i; 1824 1825 /* 1826 * Make sure the device is a reasonable place on which to dump. 1827 */ 1828 unit = udaunit(dev); 1829 if (unit >= NRA) 1830 return (ENXIO); 1831 #define phys(cast, addr) ((cast) ((int)addr & 0x7fffffff)) 1832 ui = phys(struct uba_device *, udadinfo[unit]); 1833 if (ui == NULL || ui->ui_alive == 0) 1834 return (ENXIO); 1835 1836 /* 1837 * Find and initialise the UBA; get the physical address of the 1838 * device registers, and of communications area and command and 1839 * response packet. 1840 */ 1841 uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba; 1842 ubainit(uba); 1843 udaddr = (struct udadevice *)ui->ui_physaddr; 1844 ud = phys(struct uda1 *, &uda1); 1845 1846 /* 1847 * Map the ca+packets into Unibus I/O space so the UDA50 can get 1848 * at them. Use the registers at the end of the Unibus map (since 1849 * we will use the registers at the beginning to map the memory 1850 * we are dumping). 1851 */ 1852 num = btoc(sizeof(struct uda1)) + 1; 1853 reg = NUBMREG - num; 1854 io = &uba->uba_map[reg]; 1855 for (i = 0; i < num; i++) 1856 *(int *)io++ = UBAMR_MRV | (btop(ud) + i); 1857 ud_ubaddr = (struct uda1 *)(((int)ud & PGOFSET) | (reg << 9)); 1858 1859 /* 1860 * Initialise the controller, with one command and one response 1861 * packet. 1862 */ 1863 udaddr->udaip = 0; 1864 if (udadumpwait(udaddr, UDA_STEP1)) 1865 return (EFAULT); 1866 udaddr->udasa = UDA_ERR; 1867 if (udadumpwait(udaddr, UDA_STEP2)) 1868 return (EFAULT); 1869 udaddr->udasa = (int)&ud_ubaddr->uda1_ca.ca_rspdsc; 1870 if (udadumpwait(udaddr, UDA_STEP3)) 1871 return (EFAULT); 1872 udaddr->udasa = ((int)&ud_ubaddr->uda1_ca.ca_rspdsc) >> 16; 1873 if (udadumpwait(udaddr, UDA_STEP4)) 1874 return (EFAULT); 1875 uda_softc[ui->ui_ctlr].sc_micro = udaddr->udasa & 0xff; 1876 udaddr->udasa = UDA_GO; 1877 1878 /* 1879 * Set up the command and response descriptor, then set the 1880 * controller characteristics and bring the drive on line. 1881 * Note that all uninitialised locations in uda1_cmd are zero. 1882 */ 1883 ud->uda1_ca.ca_rspdsc = (long)&ud_ubaddr->uda1_rsp.mscp_cmdref; 1884 ud->uda1_ca.ca_cmddsc = (long)&ud_ubaddr->uda1_cmd.mscp_cmdref; 1885 /* ud->uda1_cmd.mscp_sccc.sccc_ctlrflags = 0; */ 1886 /* ud->uda1_cmd.mscp_sccc.sccc_version = 0; */ 1887 if (udadumpcmd(M_OP_SETCTLRC, ud, ui)) 1888 return (EFAULT); 1889 ud->uda1_cmd.mscp_unit = ui->ui_slave; 1890 if (udadumpcmd(M_OP_ONLINE, ud, ui)) 1891 return (EFAULT); 1892 1893 pp = phys(struct partition *, 1894 &udalabel[unit].d_partitions[udapart(dev)]); 1895 maxsz = pp->p_size; 1896 blkoff = pp->p_offset; 1897 1898 /* 1899 * Dump all of physical memory, or as much as will fit in the 1900 * space provided. 1901 */ 1902 start = 0; 1903 num = maxfree; 1904 if (dumplo + num >= maxsz) 1905 num = maxsz - dumplo; 1906 blkoff += dumplo; 1907 1908 /* 1909 * Write out memory, DBSIZE pages at a time. 1910 * N.B.: this code depends on the fact that the sector 1911 * size == the page size. 1912 */ 1913 while (num > 0) { 1914 blk = num > DBSIZE ? DBSIZE : num; 1915 io = uba->uba_map; 1916 /* 1917 * Map in the pages to write, leaving an invalid entry 1918 * at the end to guard against wild Unibus transfers. 1919 * Then do the write. 1920 */ 1921 for (i = 0; i < blk; i++) 1922 *(int *)io++ = UBAMR_MRV | (btop(start) + i); 1923 *(int *)io = 0; 1924 ud->uda1_cmd.mscp_unit = ui->ui_slave; 1925 ud->uda1_cmd.mscp_seq.seq_lbn = btop(start) + blkoff; 1926 ud->uda1_cmd.mscp_seq.seq_bytecount = blk << PGSHIFT; 1927 if (udadumpcmd(M_OP_WRITE, ud, ui)) 1928 return (EIO); 1929 start += blk << PGSHIFT; 1930 num -= blk; 1931 } 1932 return (0); /* made it! */ 1933 } 1934 1935 /* 1936 * Wait for some of the bits in `bits' to come on. If the error bit 1937 * comes on, or ten seconds pass without response, return true (error). 1938 */ 1939 udadumpwait(udaddr, bits) 1940 register struct udadevice *udaddr; 1941 register int bits; 1942 { 1943 register int timo = todr() + 1000; 1944 1945 while ((udaddr->udasa & bits) == 0) { 1946 if (udaddr->udasa & UDA_ERR) { 1947 printf("udasa=%b\ndump ", udaddr->udasa, udasr_bits); 1948 return (1); 1949 } 1950 if (todr() >= timo) { 1951 printf("timeout\ndump "); 1952 return (1); 1953 } 1954 } 1955 return (0); 1956 } 1957 1958 /* 1959 * Feed a command to the UDA50, wait for its response, and return 1960 * true iff something went wrong. 1961 */ 1962 udadumpcmd(op, ud, ui) 1963 int op; 1964 register struct uda1 *ud; 1965 struct uba_device *ui; 1966 { 1967 register struct udadevice *udaddr; 1968 register int n; 1969 #define mp (&ud->uda1_rsp) 1970 1971 udaddr = (struct udadevice *)ui->ui_physaddr; 1972 ud->uda1_cmd.mscp_opcode = op; 1973 ud->uda1_cmd.mscp_msglen = MSCP_MSGLEN; 1974 ud->uda1_rsp.mscp_msglen = MSCP_MSGLEN; 1975 ud->uda1_ca.ca_rspdsc |= MSCP_OWN | MSCP_INT; 1976 ud->uda1_ca.ca_cmddsc |= MSCP_OWN | MSCP_INT; 1977 if (udaddr->udasa & UDA_ERR) { 1978 printf("udasa=%b\ndump ", udaddr->udasa, udasr_bits); 1979 return (1); 1980 } 1981 n = udaddr->udaip; 1982 n = todr() + 1000; 1983 for (;;) { 1984 if (todr() > n) { 1985 printf("timeout\ndump "); 1986 return (1); 1987 } 1988 if (ud->uda1_ca.ca_cmdint) 1989 ud->uda1_ca.ca_cmdint = 0; 1990 if (ud->uda1_ca.ca_rspint == 0) 1991 continue; 1992 ud->uda1_ca.ca_rspint = 0; 1993 if (mp->mscp_opcode == (op | M_OP_END)) 1994 break; 1995 printf("\n"); 1996 switch (MSCP_MSGTYPE(mp->mscp_msgtc)) { 1997 1998 case MSCPT_SEQ: 1999 printf("sequential"); 2000 break; 2001 2002 case MSCPT_DATAGRAM: 2003 mscp_decodeerror("uda", ui->ui_ctlr, mp); 2004 printf("datagram"); 2005 break; 2006 2007 case MSCPT_CREDITS: 2008 printf("credits"); 2009 break; 2010 2011 case MSCPT_MAINTENANCE: 2012 printf("maintenance"); 2013 break; 2014 2015 default: 2016 printf("unknown (type 0x%x)", 2017 MSCP_MSGTYPE(mp->mscp_msgtc)); 2018 break; 2019 } 2020 printf(" ignored\ndump "); 2021 ud->uda1_ca.ca_rspdsc |= MSCP_OWN | MSCP_INT; 2022 } 2023 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 2024 printf("error: op 0x%x => 0x%x status 0x%x\ndump ", op, 2025 mp->mscp_opcode, mp->mscp_status); 2026 return (1); 2027 } 2028 return (0); 2029 #undef mp 2030 } 2031 2032 /* 2033 * Return the size of a partition, if known, or -1 if not. 2034 */ 2035 udasize(dev) 2036 dev_t dev; 2037 { 2038 register int unit = udaunit(dev); 2039 register struct uba_device *ui; 2040 2041 if (unit >= NRA || (ui = udadinfo[unit]) == NULL || 2042 ui->ui_alive == 0 || (ui->ui_flags & UNIT_ONLINE) == 0 || 2043 ra_info[unit].ra_state != OPEN) 2044 return (-1); 2045 return ((int)udalabel[unit].d_partitions[udapart(dev)].p_size); 2046 } 2047 2048 #ifdef COMPAT_42 2049 /* 2050 * Tables mapping unlabelled drives. 2051 */ 2052 struct size { 2053 daddr_t nblocks; 2054 daddr_t blkoff; 2055 } ra60_sizes[8] = { 2056 15884, 0, /* A=sectors 0 thru 15883 */ 2057 33440, 15884, /* B=sectors 15884 thru 49323 */ 2058 400176, 0, /* C=sectors 0 thru 400175 */ 2059 82080, 49324, /* 4.2 G => D=sectors 49324 thru 131403 */ 2060 268772, 131404, /* 4.2 H => E=sectors 131404 thru 400175 */ 2061 350852, 49324, /* F=sectors 49324 thru 400175 */ 2062 157570, 242606, /* UCB G => G=sectors 242606 thru 400175 */ 2063 193282, 49324, /* UCB H => H=sectors 49324 thru 242605 */ 2064 }, ra70_sizes[8] = { 2065 15884, 0, /* A=blk 0 thru 15883 */ 2066 33440, 15972, /* B=blk 15972 thru 49323 */ 2067 -1, 0, /* C=blk 0 thru end */ 2068 15884, 341220, /* D=blk 341220 thru 357103 */ 2069 55936, 357192, /* E=blk 357192 thru 413127 */ 2070 -1, 413457, /* F=blk 413457 thru end */ 2071 -1, 341220, /* G=blk 341220 thru end */ 2072 291346, 49731, /* H=blk 49731 thru 341076 */ 2073 }, ra80_sizes[8] = { 2074 15884, 0, /* A=sectors 0 thru 15883 */ 2075 33440, 15884, /* B=sectors 15884 thru 49323 */ 2076 242606, 0, /* C=sectors 0 thru 242605 */ 2077 0, 0, /* D=unused */ 2078 193282, 49324, /* UCB H => E=sectors 49324 thru 242605 */ 2079 82080, 49324, /* 4.2 G => F=sectors 49324 thru 131403 */ 2080 192696, 49910, /* G=sectors 49910 thru 242605 */ 2081 111202, 131404, /* 4.2 H => H=sectors 131404 thru 242605 */ 2082 }, ra81_sizes[8] ={ 2083 /* 2084 * These are the new standard partition sizes for ra81's. 2085 * An RA_COMPAT system is compiled with D, E, and F corresponding 2086 * to the 4.2 partitions for G, H, and F respectively. 2087 */ 2088 #ifndef UCBRA 2089 15884, 0, /* A=sectors 0 thru 15883 */ 2090 66880, 16422, /* B=sectors 16422 thru 83301 */ 2091 891072, 0, /* C=sectors 0 thru 891071 */ 2092 #ifdef RA_COMPAT 2093 82080, 49324, /* 4.2 G => D=sectors 49324 thru 131403 */ 2094 759668, 131404, /* 4.2 H => E=sectors 131404 thru 891071 */ 2095 478582, 412490, /* 4.2 F => F=sectors 412490 thru 891071 */ 2096 #else 2097 15884, 375564, /* D=sectors 375564 thru 391447 */ 2098 307200, 391986, /* E=sectors 391986 thru 699185 */ 2099 191352, 699720, /* F=sectors 699720 thru 891071 */ 2100 #endif RA_COMPAT 2101 515508, 375564, /* G=sectors 375564 thru 891071 */ 2102 291346, 83538, /* H=sectors 83538 thru 374883 */ 2103 2104 /* 2105 * These partitions correspond to the sizes used by sites at Berkeley, 2106 * and by those sites that have received copies of the Berkeley driver 2107 * with deltas 6.2 or greater (11/15/83). 2108 */ 2109 #else UCBRA 2110 2111 15884, 0, /* A=sectors 0 thru 15883 */ 2112 33440, 15884, /* B=sectors 15884 thru 49323 */ 2113 891072, 0, /* C=sectors 0 thru 891071 */ 2114 15884, 242606, /* D=sectors 242606 thru 258489 */ 2115 307200, 258490, /* E=sectors 258490 thru 565689 */ 2116 325382, 565690, /* F=sectors 565690 thru 891071 */ 2117 648466, 242606, /* G=sectors 242606 thru 891071 */ 2118 193282, 49324, /* H=sectors 49324 thru 242605 */ 2119 2120 #endif UCBRA 2121 }, ra82_sizes[8] = { 2122 15884, 0, /* A=blk 0 thru 15883 */ 2123 66880, 16245, /* B=blk 16245 thru 83124 */ 2124 -1, 0, /* C=blk 0 thru end */ 2125 15884, 375345, /* D=blk 375345 thru 391228 */ 2126 307200, 391590, /* E=blk 391590 thru 698789 */ 2127 -1, 699390, /* F=blk 699390 thru end */ 2128 -1, 375345, /* G=blk 375345 thru end */ 2129 291346, 83790, /* H=blk 83790 thru 375135 */ 2130 }, rc25_sizes[8] = { 2131 15884, 0, /* A=blk 0 thru 15883 */ 2132 10032, 15884, /* B=blk 15884 thru 49323 */ 2133 -1, 0, /* C=blk 0 thru end */ 2134 0, 0, /* D=blk 340670 thru 356553 */ 2135 0, 0, /* E=blk 356554 thru 412489 */ 2136 0, 0, /* F=blk 412490 thru end */ 2137 -1, 25916, /* G=blk 49324 thru 131403 */ 2138 0, 0, /* H=blk 131404 thru end */ 2139 }, rd52_sizes[8] = { 2140 15884, 0, /* A=blk 0 thru 15883 */ 2141 9766, 15884, /* B=blk 15884 thru 25649 */ 2142 -1, 0, /* C=blk 0 thru end */ 2143 0, 0, /* D=unused */ 2144 0, 0, /* E=unused */ 2145 0, 0, /* F=unused */ 2146 -1, 25650, /* G=blk 25650 thru end */ 2147 0, 0, /* H=unused */ 2148 }, rd53_sizes[8] = { 2149 15884, 0, /* A=blk 0 thru 15883 */ 2150 33440, 15884, /* B=blk 15884 thru 49323 */ 2151 -1, 0, /* C=blk 0 thru end */ 2152 0, 0, /* D=unused */ 2153 33440, 0, /* E=blk 0 thru 33439 */ 2154 -1, 33440, /* F=blk 33440 thru end */ 2155 -1, 49324, /* G=blk 49324 thru end */ 2156 -1, 15884, /* H=blk 15884 thru end */ 2157 }, rx50_sizes[8] = { 2158 800, 0, /* A=blk 0 thru 799 */ 2159 0, 0, 2160 -1, 0, /* C=blk 0 thru end */ 2161 0, 0, 2162 0, 0, 2163 0, 0, 2164 0, 0, 2165 0, 0, 2166 }; 2167 2168 /* 2169 * Media ID decoding table. 2170 */ 2171 struct udatypes { 2172 u_long ut_id; /* media drive ID */ 2173 char *ut_name; /* drive type name */ 2174 struct size *ut_sizes; /* partition tables */ 2175 int ut_nsectors, ut_ntracks, ut_ncylinders; 2176 } udatypes[] = { 2177 { MSCP_MKDRIVE2('R', 'A', 60), "ra60", ra60_sizes, 42, 4, 2382 }, 2178 { MSCP_MKDRIVE2('R', 'A', 70), "ra70", ra70_sizes, 33, 11, 1507 }, 2179 { MSCP_MKDRIVE2('R', 'A', 80), "ra80", ra80_sizes, 31, 14, 559 }, 2180 { MSCP_MKDRIVE2('R', 'A', 81), "ra81", ra81_sizes, 51, 14, 1248 }, 2181 { MSCP_MKDRIVE2('R', 'A', 82), "ra82", ra82_sizes, 57, 14, 1423 }, 2182 { MSCP_MKDRIVE2('R', 'C', 25), "rc25-removable", 2183 rc25_sizes, 42, 4, 302 }, 2184 { MSCP_MKDRIVE3('R', 'C', 'F', 25), "rc25-fixed", 2185 rc25_sizes, 42, 4, 302 }, 2186 { MSCP_MKDRIVE2('R', 'D', 52), "rd52", rd52_sizes, 18, 7, 480 }, 2187 { MSCP_MKDRIVE2('R', 'D', 53), "rd53", rd53_sizes, 18, 8, 963 }, 2188 { MSCP_MKDRIVE2('R', 'X', 50), "rx50", rx50_sizes, 10, 1, 80 }, 2189 0 2190 }; 2191 2192 #define NTYPES (sizeof(udatypes) / sizeof(*udatypes)) 2193 2194 udamaptype(unit, lp) 2195 int unit; 2196 register struct disklabel *lp; 2197 { 2198 register struct udatypes *ut; 2199 register struct size *sz; 2200 register struct partition *pp; 2201 register char *p; 2202 register int i; 2203 register struct ra_info *ra = &ra_info[unit]; 2204 2205 i = MSCP_MEDIA_DRIVE(ra->ra_mediaid); 2206 for (ut = udatypes; ut->ut_id; ut++) 2207 if (ut->ut_id == i && 2208 ut->ut_nsectors == ra->ra_geom.rg_nsectors && 2209 ut->ut_ntracks == ra->ra_geom.rg_ntracks && 2210 ut->ut_ncylinders == ra->ra_geom.rg_ncyl) 2211 goto found; 2212 2213 /* not one we know; fake up a label for the whole drive */ 2214 uda_makefakelabel(ra, lp); 2215 i = ra->ra_mediaid; /* print the port type too */ 2216 addlog(": no partition table for %c%c %c%c%c%d, size %d;\n\ 2217 using (s,t,c)=(%d,%d,%d)", 2218 MSCP_MID_CHAR(4, i), MSCP_MID_CHAR(3, i), 2219 MSCP_MID_CHAR(2, i), MSCP_MID_CHAR(1, i), 2220 MSCP_MID_CHAR(0, i), MSCP_MID_NUM(i), lp->d_secperunit, 2221 lp->d_nsectors, lp->d_ntracks, lp->d_ncylinders); 2222 if (!cold) 2223 addlog("\n"); 2224 return (0); 2225 found: 2226 p = ut->ut_name; 2227 for (i = 0; i < sizeof(lp->d_typename) - 1 && *p; i++) 2228 lp->d_typename[i] = *p++; 2229 lp->d_typename[i] = 0; 2230 sz = ut->ut_sizes; 2231 lp->d_nsectors = ut->ut_nsectors; 2232 lp->d_ntracks = ut->ut_ntracks; 2233 lp->d_ncylinders = ut->ut_ncylinders; 2234 lp->d_npartitions = 8; 2235 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 2236 for (pp = lp->d_partitions; pp < &lp->d_partitions[8]; pp++, sz++) { 2237 pp->p_offset = sz->blkoff; 2238 if ((pp->p_size = sz->nblocks) == (u_long)-1) 2239 pp->p_size = ra->ra_dsize - sz->blkoff; 2240 } 2241 return (1); 2242 } 2243 #endif /* COMPAT_42 */ 2244 2245 /* 2246 * Construct a label for a drive from geometry information 2247 * if we have no better information. 2248 */ 2249 uda_makefakelabel(ra, lp) 2250 register struct ra_info *ra; 2251 register struct disklabel *lp; 2252 { 2253 lp->d_nsectors = ra->ra_geom.rg_nsectors; 2254 lp->d_ntracks = ra->ra_geom.rg_ntracks; 2255 lp->d_ncylinders = ra->ra_geom.rg_ncyl; 2256 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 2257 bcopy("ra??", lp->d_typename, sizeof("ra??")); 2258 lp->d_npartitions = 1; 2259 lp->d_partitions[0].p_offset = 0; 2260 lp->d_partitions[0].p_size = lp->d_secperunit; 2261 } 2262 #endif /* NUDA > 0 */ 2263