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 * Redistribution and use in source and binary forms are permitted 9 * provided that the above copyright notice and this paragraph are 10 * duplicated in all such forms and that any documentation, 11 * advertising materials, and other materials related to such 12 * distribution and use acknowledge that the software was developed 13 * by the University of California, Berkeley. The name of the 14 * University may not be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * 20 * @(#)uda.c 7.22 (Berkeley) 04/25/89 21 */ 22 23 /* 24 * UDA50/MSCP device driver 25 */ 26 27 #define POLLSTATS 28 29 /* 30 * TODO 31 * write bad block forwarding code 32 */ 33 34 #include "ra.h" 35 36 #if NUDA > 0 37 38 /* 39 * CONFIGURATION OPTIONS. The next three defines are tunable -- tune away! 40 * 41 * COMPAT_42 enables 4.2/4.3 compatibility (label mapping) 42 * 43 * NRSPL2 and NCMDL2 control the number of response and command 44 * packets respectively. They may be any value from 0 to 7, though 45 * setting them higher than 5 is unlikely to be of any value. 46 * If you get warnings about your command ring being too small, 47 * try increasing the values by one. 48 * 49 * MAXUNIT controls the maximum unit number (number of drives per 50 * controller) we are prepared to handle. 51 * 52 * DEFAULT_BURST must be at least 1. 53 */ 54 #define COMPAT_42 55 56 #define NRSPL2 5 /* log2 number of response packets */ 57 #define NCMDL2 5 /* log2 number of command packets */ 58 #define MAXUNIT 8 /* maximum allowed unit number */ 59 #define DEFAULT_BURST 4 /* default DMA burst size */ 60 61 #include "param.h" 62 #include "systm.h" 63 #include "buf.h" 64 #include "conf.h" 65 #include "dir.h" 66 #include "file.h" 67 #include "ioctl.h" 68 #include "user.h" 69 #include "map.h" 70 #include "vm.h" 71 #include "dkstat.h" 72 #include "cmap.h" 73 #include "disklabel.h" 74 #include "syslog.h" 75 #include "stat.h" 76 77 #include "machine/pte.h" 78 79 #include "../vax/cpu.h" 80 #include "ubareg.h" 81 #include "ubavar.h" 82 83 #define NRSP (1 << NRSPL2) 84 #define NCMD (1 << NCMDL2) 85 86 #include "udareg.h" 87 #include "../vax/mscp.h" 88 #include "../vax/mscpvar.h" 89 #include "../vax/mtpr.h" 90 91 /* 92 * UDA communications area and MSCP packet pools, per controller. 93 */ 94 struct uda { 95 struct udaca uda_ca; /* communications area */ 96 struct mscp uda_rsp[NRSP]; /* response packets */ 97 struct mscp uda_cmd[NCMD]; /* command packets */ 98 } uda[NUDA]; 99 100 /* 101 * Software status, per controller. 102 */ 103 struct uda_softc { 104 struct uda *sc_uda; /* Unibus address of uda struct */ 105 short sc_state; /* UDA50 state; see below */ 106 short sc_flags; /* flags; see below */ 107 int sc_micro; /* microcode revision */ 108 int sc_ivec; /* interrupt vector address */ 109 short sc_ipl; /* interrupt priority, Q-bus */ 110 struct mscp_info sc_mi;/* MSCP info (per mscpvar.h) */ 111 #ifndef POLLSTATS 112 int sc_wticks; /* watchdog timer ticks */ 113 #else 114 short sc_wticks; 115 short sc_ncmd; 116 #endif 117 } uda_softc[NUDA]; 118 119 #ifdef POLLSTATS 120 struct udastats { 121 int ncmd; 122 int cmd[NCMD + 1]; 123 } udastats = { NCMD + 1 }; 124 #endif 125 126 /* 127 * Controller states 128 */ 129 #define ST_IDLE 0 /* uninitialised */ 130 #define ST_STEP1 1 /* in `STEP 1' */ 131 #define ST_STEP2 2 /* in `STEP 2' */ 132 #define ST_STEP3 3 /* in `STEP 3' */ 133 #define ST_SETCHAR 4 /* in `Set Controller Characteristics' */ 134 #define ST_RUN 5 /* up and running */ 135 136 /* 137 * Flags 138 */ 139 #define SC_MAPPED 0x01 /* mapped in Unibus I/O space */ 140 #define SC_INSTART 0x02 /* inside udastart() */ 141 #define SC_GRIPED 0x04 /* griped about cmd ring too small */ 142 #define SC_INSLAVE 0x08 /* inside udaslave() */ 143 #define SC_DOWAKE 0x10 /* wakeup when ctlr init done */ 144 #define SC_STARTPOLL 0x20 /* need to initiate polling */ 145 146 /* 147 * Device to unit number and partition and back 148 */ 149 #define UNITSHIFT 3 150 #define UNITMASK 7 151 #define udaunit(dev) (minor(dev) >> UNITSHIFT) 152 #define udapart(dev) (minor(dev) & UNITMASK) 153 #define udaminor(u, p) (((u) << UNITSHIFT) | (p)) 154 155 /* 156 * Drive status, per drive 157 */ 158 struct ra_info { 159 daddr_t ra_dsize; /* size in sectors */ 160 /* u_long ra_type; /* drive type */ 161 u_long ra_mediaid; /* media id */ 162 int ra_state; /* open/closed state */ 163 struct ra_geom { /* geometry information */ 164 u_short rg_nsectors; /* sectors/track */ 165 u_short rg_ngroups; /* track groups */ 166 u_short rg_ngpc; /* groups/cylinder */ 167 u_short rg_ntracks; /* ngroups*ngpc */ 168 u_short rg_ncyl; /* ra_dsize/ntracks/nsectors */ 169 #ifdef notyet 170 u_short rg_rctsize; /* size of rct */ 171 u_short rg_rbns; /* replacement blocks per track */ 172 u_short rg_nrct; /* number of rct copies */ 173 #endif 174 } ra_geom; 175 int ra_wlabel; /* label sector is currently writable */ 176 u_long ra_openpart; /* partitions open */ 177 u_long ra_bopenpart; /* block partitions open */ 178 u_long ra_copenpart; /* character partitions open */ 179 } ra_info[NRA]; 180 181 /* 182 * Software state, per drive 183 */ 184 #define CLOSED 0 185 #define WANTOPEN 1 186 #define RDLABEL 2 187 #define OPEN 3 188 #define OPENRAW 4 189 190 /* 191 * Definition of the driver for autoconf. 192 */ 193 int udaprobe(), udaslave(), udaattach(), udadgo(), udaintr(); 194 struct uba_ctlr *udaminfo[NUDA]; 195 struct uba_device *udadinfo[NRA]; 196 struct disklabel udalabel[NRA]; 197 198 u_short udastd[] = { 0772150, 0772550, 0777550, 0 }; 199 struct uba_driver udadriver = 200 { udaprobe, udaslave, udaattach, udadgo, udastd, "ra", udadinfo, "uda", 201 udaminfo }; 202 203 /* 204 * More driver definitions, for generic MSCP code. 205 */ 206 int udadgram(), udactlrdone(), udaunconf(), udaiodone(); 207 int udaonline(), udagotstatus(), udaioerror(), udareplace(), udabb(); 208 209 struct buf udautab[NRA]; /* per drive transfer queue */ 210 211 struct mscp_driver udamscpdriver = 212 { MAXUNIT, NRA, UNITSHIFT, udautab, udalabel, udadinfo, 213 udadgram, udactlrdone, udaunconf, udaiodone, 214 udaonline, udagotstatus, udareplace, udaioerror, udabb, 215 "uda", "ra" }; 216 217 /* 218 * Miscellaneous private variables. 219 */ 220 char udasr_bits[] = UDASR_BITS; 221 222 struct uba_device *udaip[NUDA][MAXUNIT]; 223 /* inverting pointers: ctlr & unit => Unibus 224 device pointer */ 225 226 int udaburst[NUDA] = { 0 }; /* burst size, per UDA50, zero => default; 227 in data space so patchable via adb */ 228 229 struct mscp udaslavereply; /* get unit status response packet, set 230 for udaslave by udaunconf, via udaintr */ 231 232 static struct uba_ctlr *probeum;/* this is a hack---autoconf should pass ctlr 233 info to slave routine; instead, we remember 234 the last ctlr argument to probe */ 235 236 int udawstart, udawatch(); /* watchdog timer */ 237 238 /* 239 * Externals 240 */ 241 int wakeup(); 242 int hz; 243 244 /* 245 * Poke at a supposed UDA50 to see if it is there. 246 * This routine duplicates some of the code in udainit() only 247 * because autoconf has not set up the right information yet. 248 * We have to do everything `by hand'. 249 */ 250 udaprobe(reg, ctlr, um) 251 caddr_t reg; 252 int ctlr; 253 struct uba_ctlr *um; 254 { 255 register int br, cvec; 256 register struct uda_softc *sc; 257 register struct udadevice *udaddr; 258 register struct mscp_info *mi; 259 int timeout, tries, s; 260 261 #ifdef VAX750 262 /* 263 * The UDA50 wants to share BDPs on 750s, but not on 780s or 264 * 8600s. (730s have no BDPs anyway.) Toward this end, we 265 * here set the `keep bdp' flag in the per-driver information 266 * if this is a 750. (We just need to do it once, but it is 267 * easiest to do it now, for each UDA50.) 268 */ 269 if (cpu == VAX_750) 270 udadriver.ud_keepbdp = 1; 271 #endif 272 273 probeum = um; /* remember for udaslave() */ 274 #ifdef lint 275 br = 0; cvec = br; br = cvec; udaintr(0); 276 #endif 277 /* 278 * Set up the controller-specific generic MSCP driver info. 279 * Note that this should really be done in the (nonexistent) 280 * controller attach routine. 281 */ 282 sc = &uda_softc[ctlr]; 283 mi = &sc->sc_mi; 284 mi->mi_md = &udamscpdriver; 285 mi->mi_ctlr = um->um_ctlr; 286 mi->mi_tab = &um->um_tab; 287 mi->mi_ip = udaip[ctlr]; 288 mi->mi_cmd.mri_size = NCMD; 289 mi->mi_cmd.mri_desc = uda[ctlr].uda_ca.ca_cmddsc; 290 mi->mi_cmd.mri_ring = uda[ctlr].uda_cmd; 291 mi->mi_rsp.mri_size = NRSP; 292 mi->mi_rsp.mri_desc = uda[ctlr].uda_ca.ca_rspdsc; 293 mi->mi_rsp.mri_ring = uda[ctlr].uda_rsp; 294 mi->mi_wtab.av_forw = mi->mi_wtab.av_back = &mi->mi_wtab; 295 296 /* 297 * More controller specific variables. Again, this should 298 * be in the controller attach routine. 299 */ 300 if (udaburst[ctlr] == 0) 301 udaburst[ctlr] = DEFAULT_BURST; 302 303 /* 304 * Get an interrupt vector. Note that even if the controller 305 * does not respond, we keep the vector. This is not a serious 306 * problem; but it would be easily fixed if we had a controller 307 * attach routine. Sigh. 308 */ 309 sc->sc_ivec = (uba_hd[numuba].uh_lastiv -= 4); 310 udaddr = (struct udadevice *) reg; 311 312 /* 313 * Initialise the controller (partially). The UDA50 programmer's 314 * manual states that if initialisation fails, it should be retried 315 * at least once, but after a second failure the port should be 316 * considered `down'; it also mentions that the controller should 317 * initialise within ten seconds. Or so I hear; I have not seen 318 * this manual myself. 319 */ 320 #ifdef QBA 321 s = spl6(); 322 #endif 323 tries = 0; 324 again: 325 udaddr->udaip = 0; /* start initialisation */ 326 timeout = todr() + 1000; /* timeout in 10 seconds */ 327 while ((udaddr->udasa & UDA_STEP1) == 0) 328 if (todr() > timeout) 329 goto bad; 330 udaddr->udasa = UDA_ERR | (NCMDL2 << 11) | (NRSPL2 << 8) | UDA_IE | 331 (sc->sc_ivec >> 2); 332 while ((udaddr->udasa & UDA_STEP2) == 0) 333 if (todr() > timeout) 334 goto bad; 335 336 /* should have interrupted by now */ 337 #ifdef QBA 338 sc->sc_ipl = br = qbgetpri(); 339 #endif 340 return (sizeof (struct udadevice)); 341 bad: 342 if (++tries < 2) 343 goto again; 344 splx(s); 345 return (0); 346 } 347 348 /* 349 * Find a slave. We allow wildcard slave numbers (something autoconf 350 * is not really prepared to deal with); and we need to know the 351 * controller number to talk to the UDA. For the latter, we keep 352 * track of the last controller probed, since a controller probe 353 * immediately precedes all slave probes for that controller. For the 354 * former, we simply put the unit number into ui->ui_slave after we 355 * have found one. 356 * 357 * Note that by the time udaslave is called, the interrupt vector 358 * for the UDA50 has been set up (so that udaunconf() will be called). 359 */ 360 udaslave(ui, reg) 361 register struct uba_device *ui; 362 caddr_t reg; 363 { 364 register struct uba_ctlr *um = probeum; 365 register struct mscp *mp; 366 register struct uda_softc *sc; 367 int next = 0, timeout, tries, i; 368 369 #ifdef lint 370 i = 0; i = i; 371 #endif 372 /* 373 * Make sure the controller is fully initialised, by waiting 374 * for it if necessary. 375 */ 376 sc = &uda_softc[um->um_ctlr]; 377 if (sc->sc_state == ST_RUN) 378 goto findunit; 379 tries = 0; 380 again: 381 if (udainit(ui->ui_ctlr)) 382 return (0); 383 timeout = todr() + 1000; /* 10 seconds */ 384 while (todr() < timeout) 385 if (sc->sc_state == ST_RUN) /* made it */ 386 goto findunit; 387 if (++tries < 2) 388 goto again; 389 printf("uda%d: controller hung\n", um->um_ctlr); 390 return (0); 391 392 /* 393 * The controller is all set; go find the unit. Grab an 394 * MSCP packet and send out a Get Unit Status command, with 395 * the `next unit' modifier if we are looking for a generic 396 * unit. We set the `in slave' flag so that udaunconf() 397 * knows to copy the response to `udaslavereply'. 398 */ 399 findunit: 400 udaslavereply.mscp_opcode = 0; 401 sc->sc_flags |= SC_INSLAVE; 402 if ((mp = mscp_getcp(&sc->sc_mi, MSCP_DONTWAIT)) == NULL) 403 panic("udaslave"); /* `cannot happen' */ 404 mp->mscp_opcode = M_OP_GETUNITST; 405 if (ui->ui_slave == '?') { 406 mp->mscp_unit = next; 407 mp->mscp_modifier = M_GUM_NEXTUNIT; 408 } else { 409 mp->mscp_unit = ui->ui_slave; 410 mp->mscp_modifier = 0; 411 } 412 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 413 i = ((struct udadevice *) reg)->udaip; /* initiate polling */ 414 mp = &udaslavereply; 415 timeout = todr() + 1000; 416 while (todr() < timeout) 417 if (mp->mscp_opcode) 418 goto gotit; 419 printf("uda%d: no response to Get Unit Status request\n", 420 um->um_ctlr); 421 sc->sc_flags &= ~SC_INSLAVE; 422 return (0); 423 424 gotit: 425 sc->sc_flags &= ~SC_INSLAVE; 426 427 /* 428 * Got a slave response. If the unit is there, use it. 429 */ 430 switch (mp->mscp_status & M_ST_MASK) { 431 432 case M_ST_SUCCESS: /* worked */ 433 case M_ST_AVAILABLE: /* found another drive */ 434 break; /* use it */ 435 436 case M_ST_OFFLINE: 437 /* 438 * Figure out why it is off line. It may be because 439 * it is nonexistent, or because it is spun down, or 440 * for some other reason. 441 */ 442 switch (mp->mscp_status & ~M_ST_MASK) { 443 444 case M_OFFLINE_UNKNOWN: 445 /* 446 * No such drive, and there are none with 447 * higher unit numbers either, if we are 448 * using M_GUM_NEXTUNIT. 449 */ 450 return (0); 451 452 case M_OFFLINE_UNMOUNTED: 453 /* 454 * The drive is not spun up. Use it anyway. 455 * 456 * N.B.: this seems to be a common occurrance 457 * after a power failure. The first attempt 458 * to bring it on line seems to spin it up 459 * (and thus takes several minutes). Perhaps 460 * we should note here that the on-line may 461 * take longer than usual. 462 */ 463 break; 464 465 default: 466 /* 467 * In service, or something else equally unusable. 468 */ 469 printf("uda%d: unit %d off line: ", um->um_ctlr, 470 mp->mscp_unit); 471 mscp_printevent(mp); 472 goto try_another; 473 } 474 break; 475 476 default: 477 printf("uda%d: unable to get unit status: ", um->um_ctlr); 478 mscp_printevent(mp); 479 return (0); 480 } 481 482 /* 483 * Does this ever happen? What (if anything) does it mean? 484 */ 485 if (mp->mscp_unit < next) { 486 printf("uda%d: unit %d, next %d\n", 487 um->um_ctlr, mp->mscp_unit, next); 488 return (0); 489 } 490 491 if (mp->mscp_unit >= MAXUNIT) { 492 printf("uda%d: cannot handle unit number %d (max is %d)\n", 493 um->um_ctlr, mp->mscp_unit, MAXUNIT - 1); 494 return (0); 495 } 496 497 /* 498 * See if we already handle this drive. 499 * (Only likely if ui->ui_slave=='?'.) 500 */ 501 if (udaip[um->um_ctlr][mp->mscp_unit] != NULL) { 502 try_another: 503 if (ui->ui_slave != '?') 504 return (0); 505 next = mp->mscp_unit + 1; 506 goto findunit; 507 } 508 509 /* 510 * Voila! 511 */ 512 uda_rasave(ui->ui_unit, mp, 0); 513 ui->ui_flags = 0; /* not on line, nor anything else */ 514 ui->ui_slave = mp->mscp_unit; 515 return (1); 516 } 517 518 /* 519 * Attach a found slave. Make sure the watchdog timer is running. 520 * If this disk is being profiled, fill in the `mspw' value (used by 521 * what?). Set up the inverting pointer, and attempt to bring the 522 * drive on line and read its label. 523 */ 524 udaattach(ui) 525 register struct uba_device *ui; 526 { 527 register int unit = ui->ui_unit; 528 529 if (udawstart == 0) { 530 timeout(udawatch, (caddr_t) 0, hz); 531 udawstart++; 532 } 533 534 /* 535 * Floppies cannot be brought on line unless there is 536 * a disk in the drive. Since an ONLINE while cold 537 * takes ten seconds to fail, and (when notyet becomes now) 538 * no sensible person will swap to one, we just 539 * defer the ONLINE until someone tries to use the drive. 540 * 541 * THIS ASSUMES THAT DRIVE TYPES ?X? ARE FLOPPIES 542 */ 543 if (MSCP_MID_ECH(1, ra_info[unit].ra_mediaid) == 'X' - '@') { 544 printf(": floppy"); 545 return; 546 } 547 if (ui->ui_dk >= 0) 548 dk_mspw[ui->ui_dk] = 1.0 / (60 * 31 * 256); /* approx */ 549 udaip[ui->ui_ctlr][ui->ui_slave] = ui; 550 551 if (uda_rainit(ui, 0)) 552 printf(": offline"); 553 else if (ra_info[unit].ra_state == OPEN) { 554 printf(": %s, size = %d sectors", 555 udalabel[unit].d_typename, ra_info[unit].ra_dsize); 556 #ifdef notyet 557 addswap(makedev(UDADEVNUM, udaminor(unit, 0)), &udalabel[unit]); 558 #endif 559 } 560 } 561 562 /* 563 * Initialise a UDA50. Return true iff something goes wrong. 564 */ 565 udainit(ctlr) 566 int ctlr; 567 { 568 register struct uda_softc *sc; 569 register struct udadevice *udaddr; 570 struct uba_ctlr *um; 571 int timo, ubinfo; 572 573 sc = &uda_softc[ctlr]; 574 um = udaminfo[ctlr]; 575 if ((sc->sc_flags & SC_MAPPED) == 0) { 576 /* 577 * Map the communication area and command and 578 * response packets into Unibus space. 579 */ 580 ubinfo = uballoc(um->um_ubanum, (caddr_t) &uda[ctlr], 581 sizeof (struct uda), UBA_CANTWAIT); 582 if (ubinfo == 0) { 583 printf("uda%d: uballoc map failed\n", ctlr); 584 return (-1); 585 } 586 sc->sc_uda = (struct uda *) UBAI_ADDR(ubinfo); 587 sc->sc_flags |= SC_MAPPED; 588 } 589 590 /* 591 * While we are thinking about it, reset the next command 592 * and response indicies. 593 */ 594 sc->sc_mi.mi_cmd.mri_next = 0; 595 sc->sc_mi.mi_rsp.mri_next = 0; 596 597 /* 598 * Start up the hardware initialisation sequence. 599 */ 600 #define STEP0MASK (UDA_ERR | UDA_STEP4 | UDA_STEP3 | UDA_STEP2 | \ 601 UDA_STEP1 | UDA_NV) 602 603 sc->sc_state = ST_IDLE; /* in case init fails */ 604 udaddr = (struct udadevice *)um->um_addr; 605 udaddr->udaip = 0; 606 timo = todr() + 1000; 607 while ((udaddr->udasa & STEP0MASK) == 0) { 608 if (todr() > timo) { 609 printf("uda%d: timeout during init\n", ctlr); 610 return (-1); 611 } 612 } 613 if ((udaddr->udasa & STEP0MASK) != UDA_STEP1) { 614 printf("uda%d: init failed, sa=%b\n", ctlr, 615 udaddr->udasa, udasr_bits); 616 udasaerror(um, 0); 617 return (-1); 618 } 619 620 /* 621 * Success! Record new state, and start step 1 initialisation. 622 * The rest is done in the interrupt handler. 623 */ 624 sc->sc_state = ST_STEP1; 625 udaddr->udasa = UDA_ERR | (NCMDL2 << 11) | (NRSPL2 << 8) | UDA_IE | 626 (sc->sc_ivec >> 2); 627 return (0); 628 } 629 630 /* 631 * Open a drive. 632 */ 633 /*ARGSUSED*/ 634 udaopen(dev, flag, fmt) 635 dev_t dev; 636 int flag, fmt; 637 { 638 register int unit; 639 register struct uba_device *ui; 640 register struct uda_softc *sc; 641 register struct disklabel *lp; 642 register struct partition *pp; 643 register struct ra_info *ra; 644 int s, i, part, mask, error = 0; 645 daddr_t start, end; 646 647 /* 648 * Make sure this is a reasonable open request. 649 */ 650 unit = udaunit(dev); 651 if (unit >= NRA || (ui = udadinfo[unit]) == 0 || ui->ui_alive == 0) 652 return (ENXIO); 653 654 /* 655 * Make sure the controller is running, by (re)initialising it if 656 * necessary. 657 */ 658 sc = &uda_softc[ui->ui_ctlr]; 659 s = spl5(); 660 if (sc->sc_state != ST_RUN) { 661 if (sc->sc_state == ST_IDLE && udainit(ui->ui_ctlr)) { 662 splx(s); 663 return (EIO); 664 } 665 /* 666 * In case it does not come up, make sure we will be 667 * restarted in 10 seconds. This corresponds to the 668 * 10 second timeouts in udaprobe() and udaslave(). 669 */ 670 sc->sc_flags |= SC_DOWAKE; 671 timeout(wakeup, (caddr_t) sc, 10 * hz); 672 sleep((caddr_t) sc, PRIBIO); 673 if (sc->sc_state != ST_RUN) { 674 splx(s); 675 printf("uda%d: controller hung\n", ui->ui_ctlr); 676 return (EIO); 677 } 678 untimeout(wakeup, (caddr_t) sc); 679 } 680 681 /* 682 * Wait for the state to settle 683 */ 684 ra = &ra_info[unit]; 685 while (ra->ra_state != OPEN && ra->ra_state != OPENRAW && 686 ra->ra_state != CLOSED) 687 sleep((caddr_t)ra, PZERO + 1); 688 689 /* 690 * If not on line, or we are not sure of the label, reinitialise 691 * the drive. 692 */ 693 if ((ui->ui_flags & UNIT_ONLINE) == 0 || 694 (ra->ra_state != OPEN && ra->ra_state != OPENRAW)) 695 error = uda_rainit(ui, flag); 696 splx(s); 697 if (error) 698 return (error); 699 700 part = udapart(dev); 701 lp = &udalabel[unit]; 702 if (part >= lp->d_npartitions) 703 return (ENXIO); 704 /* 705 * Warn if a partition is opened that overlaps another 706 * already open, unless either is the `raw' partition 707 * (whole disk). 708 */ 709 #define RAWPART 2 /* 'c' partition */ /* XXX */ 710 mask = 1 << part; 711 if ((ra->ra_openpart & mask) == 0 && part != RAWPART) { 712 pp = &lp->d_partitions[part]; 713 start = pp->p_offset; 714 end = pp->p_offset + pp->p_size; 715 for (pp = lp->d_partitions, i = 0; 716 i < lp->d_npartitions; pp++, i++) { 717 if (pp->p_offset + pp->p_size <= start || 718 pp->p_offset >= end || i == RAWPART) 719 continue; 720 if (ra->ra_openpart & (1 << i)) 721 log(LOG_WARNING, 722 "ra%d%c: overlaps open partition (%c)\n", 723 unit, part + 'a', i + 'a'); 724 } 725 } 726 switch (fmt) { 727 case S_IFCHR: 728 ra->ra_copenpart |= mask; 729 break; 730 case S_IFBLK: 731 ra->ra_bopenpart |= mask; 732 break; 733 } 734 ra->ra_openpart |= mask; 735 return (0); 736 } 737 738 /* ARGSUSED */ 739 udaclose(dev, flags, fmt) 740 dev_t dev; 741 int flags, fmt; 742 { 743 register int unit = udaunit(dev); 744 register struct ra_info *ra = &ra_info[unit]; 745 int s, mask = (1 << udapart(dev)); 746 747 switch (fmt) { 748 case S_IFCHR: 749 ra->ra_copenpart &= ~mask; 750 break; 751 case S_IFBLK: 752 ra->ra_bopenpart &= ~mask; 753 break; 754 } 755 ra->ra_openpart = ra->ra_copenpart | ra->ra_bopenpart; 756 757 /* 758 * Should wait for I/O to complete on this partition even if 759 * others are open, but wait for work on blkflush(). 760 */ 761 if (ra->ra_openpart == 0) { 762 s = spl5(); 763 while (udautab[unit].b_actf) 764 sleep((caddr_t)&udautab[unit], PZERO - 1); 765 splx(s); 766 ra->ra_state = CLOSED; 767 ra->ra_wlabel = 0; 768 } 769 return (0); 770 } 771 772 /* 773 * Initialise a drive. If it is not already, bring it on line, 774 * and set a timeout on it in case it fails to respond. 775 * When on line, read in the pack label. 776 */ 777 uda_rainit(ui, flags) 778 register struct uba_device *ui; 779 int flags; 780 { 781 register struct uda_softc *sc = &uda_softc[ui->ui_ctlr]; 782 register struct disklabel *lp; 783 register struct mscp *mp; 784 register int unit = ui->ui_unit; 785 register struct ra_info *ra; 786 char *msg, *readdisklabel(); 787 int s, i, udastrategy(); 788 extern int cold; 789 790 ra = &ra_info[unit]; 791 if ((ui->ui_flags & UNIT_ONLINE) == 0) { 792 mp = mscp_getcp(&sc->sc_mi, MSCP_WAIT); 793 mp->mscp_opcode = M_OP_ONLINE; 794 mp->mscp_unit = ui->ui_slave; 795 mp->mscp_cmdref = (long)&ui->ui_flags; 796 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 797 ra->ra_state = WANTOPEN; 798 if (!cold) 799 s = spl5(); 800 i = ((struct udadevice *)ui->ui_addr)->udaip; 801 802 if (cold) { 803 i = todr() + 1000; 804 while ((ui->ui_flags & UNIT_ONLINE) == 0) 805 if (todr() > i) 806 break; 807 } else { 808 timeout(wakeup, (caddr_t)&ui->ui_flags, 10 * hz); 809 sleep((caddr_t)&ui->ui_flags, PSWP + 1); 810 splx(s); 811 untimeout(wakeup, (caddr_t)&ui->ui_flags); 812 } 813 if (ra->ra_state != OPENRAW) { 814 ra->ra_state = CLOSED; 815 wakeup((caddr_t)ra); 816 return (EIO); 817 } 818 } 819 820 lp = &udalabel[unit]; 821 lp->d_secsize = DEV_BSIZE; 822 lp->d_secperunit = ra->ra_dsize; 823 824 if (flags & O_NDELAY) 825 return (0); 826 ra->ra_state = RDLABEL; 827 /* 828 * Set up default sizes until we have the label, or longer 829 * if there is none. Set secpercyl, as readdisklabel wants 830 * to compute b_cylin (although we do not need it). 831 */ 832 lp->d_secpercyl = 1; 833 lp->d_npartitions = 1; 834 lp->d_secsize = 512; 835 lp->d_secperunit = ra->ra_dsize; 836 lp->d_partitions[0].p_size = lp->d_secperunit; 837 lp->d_partitions[0].p_offset = 0; 838 839 /* 840 * Read pack label. 841 */ 842 if ((msg = readdisklabel(udaminor(unit, 0), udastrategy, lp)) != NULL) { 843 if (cold) 844 printf(": %s", msg); 845 else 846 log(LOG_ERR, "ra%d: %s", unit, msg); 847 #ifdef COMPAT_42 848 if (udamaptype(unit, lp)) 849 ra->ra_state = OPEN; 850 else 851 ra->ra_state = OPENRAW; 852 #else 853 ra->ra_state = OPENRAW; 854 uda_makefakelabel(ra, lp); 855 #endif 856 } else 857 ra->ra_state = OPEN; 858 wakeup((caddr_t)ra); 859 return (0); 860 } 861 862 /* 863 * Copy the geometry information for the given ra from a 864 * GET UNIT STATUS response. If check, see if it changed. 865 */ 866 uda_rasave(unit, mp, check) 867 int unit; 868 register struct mscp *mp; 869 int check; 870 { 871 register struct ra_info *ra = &ra_info[unit]; 872 873 if (check && ra->ra_mediaid != mp->mscp_guse.guse_mediaid) { 874 printf("ra%d: changed types! was %d now %d\n", unit, 875 ra->ra_mediaid, mp->mscp_guse.guse_mediaid); 876 ra->ra_state = CLOSED; /* ??? */ 877 } 878 /* ra->ra_type = mp->mscp_guse.guse_drivetype; */ 879 ra->ra_mediaid = mp->mscp_guse.guse_mediaid; 880 ra->ra_geom.rg_nsectors = mp->mscp_guse.guse_nspt; 881 ra->ra_geom.rg_ngroups = mp->mscp_guse.guse_group; 882 ra->ra_geom.rg_ngpc = mp->mscp_guse.guse_ngpc; 883 ra->ra_geom.rg_ntracks = ra->ra_geom.rg_ngroups * ra->ra_geom.rg_ngpc; 884 /* ra_geom.rg_ncyl cannot be computed until we have ra_dsize */ 885 #ifdef notyet 886 ra->ra_geom.rg_rctsize = mp->mscp_guse.guse_rctsize; 887 ra->ra_geom.rg_rbns = mp->mscp_guse.guse_nrpt; 888 ra->ra_geom.rg_nrct = mp->mscp_guse.guse_nrct; 889 #endif 890 } 891 892 /* 893 * Queue a transfer request, and if possible, hand it to the controller. 894 * 895 * This routine is broken into two so that the internal version 896 * udastrat1() can be called by the (nonexistent, as yet) bad block 897 * revectoring routine. 898 */ 899 udastrategy(bp) 900 register struct buf *bp; 901 { 902 register int unit; 903 register struct uba_device *ui; 904 register struct ra_info *ra; 905 struct partition *pp; 906 int p; 907 daddr_t sz, maxsz; 908 909 /* 910 * Make sure this is a reasonable drive to use. 911 */ 912 if ((unit = udaunit(bp->b_dev)) >= NRA || 913 (ui = udadinfo[unit]) == NULL || ui->ui_alive == 0 || 914 (ra = &ra_info[unit])->ra_state == CLOSED) { 915 bp->b_error = ENXIO; 916 goto bad; 917 } 918 919 /* 920 * If drive is open `raw' or reading label, let it at it. 921 */ 922 if (ra->ra_state < OPEN) { 923 udastrat1(bp); 924 return; 925 } 926 p = udapart(bp->b_dev); 927 if ((ra->ra_openpart & (1 << p)) == 0) { 928 bp->b_error = ENODEV; 929 goto bad; 930 } 931 932 /* 933 * Determine the size of the transfer, and make sure it is 934 * within the boundaries of the partition. 935 */ 936 pp = &udalabel[unit].d_partitions[p]; 937 maxsz = pp->p_size; 938 if (pp->p_offset + pp->p_size > ra->ra_dsize) 939 maxsz = ra->ra_dsize - pp->p_offset; 940 sz = (bp->b_bcount + DEV_BSIZE - 1) >> DEV_BSHIFT; 941 if (bp->b_blkno + pp->p_offset <= LABELSECTOR && 942 #if LABELSECTOR != 0 943 bp->b_blkno + pp->p_offset + sz > LABELSECTOR && 944 #endif 945 (bp->b_flags & B_READ) == 0 && ra->ra_wlabel == 0) { 946 bp->b_error = EROFS; 947 goto bad; 948 } 949 if (bp->b_blkno < 0 || bp->b_blkno + sz > maxsz) { 950 /* if exactly at end of disk, return an EOF */ 951 if (bp->b_blkno == maxsz) { 952 bp->b_resid = bp->b_bcount; 953 biodone(bp); 954 return; 955 } 956 /* or truncate if part of it fits */ 957 sz = maxsz - bp->b_blkno; 958 if (sz <= 0) { 959 bp->b_error = EINVAL; /* or hang it up */ 960 goto bad; 961 } 962 bp->b_bcount = sz << DEV_BSHIFT; 963 } 964 udastrat1(bp); 965 return; 966 bad: 967 bp->b_flags |= B_ERROR; 968 biodone(bp); 969 } 970 971 /* 972 * Work routine for udastrategy. 973 */ 974 udastrat1(bp) 975 register struct buf *bp; 976 { 977 register int unit = udaunit(bp->b_dev); 978 register struct uba_ctlr *um; 979 register struct buf *dp; 980 struct uba_device *ui; 981 int s = spl5(); 982 983 /* 984 * Append the buffer to the drive queue, and if it is not 985 * already there, the drive to the controller queue. (However, 986 * if the drive queue is marked to be requeued, we must be 987 * awaiting an on line or get unit status command; in this 988 * case, leave it off the controller queue.) 989 */ 990 um = (ui = udadinfo[unit])->ui_mi; 991 dp = &udautab[unit]; 992 APPEND(bp, dp, av_forw); 993 if (dp->b_active == 0 && (ui->ui_flags & UNIT_REQUEUE) == 0) { 994 APPEND(dp, &um->um_tab, b_forw); 995 dp->b_active++; 996 } 997 998 /* 999 * Start activity on the controller. Note that unlike other 1000 * Unibus drivers, we must always do this, not just when the 1001 * controller is not active. 1002 */ 1003 udastart(um); 1004 splx(s); 1005 } 1006 1007 /* 1008 * Start up whatever transfers we can find. 1009 * Note that udastart() must be called at spl5(). 1010 */ 1011 udastart(um) 1012 register struct uba_ctlr *um; 1013 { 1014 register struct uda_softc *sc = &uda_softc[um->um_ctlr]; 1015 register struct buf *bp, *dp; 1016 register struct mscp *mp; 1017 struct uba_device *ui; 1018 struct udadevice *udaddr; 1019 struct partition *pp; 1020 int i, sz; 1021 1022 #ifdef lint 1023 i = 0; i = i; 1024 #endif 1025 /* 1026 * If it is not running, try (again and again...) to initialise 1027 * it. If it is currently initialising just ignore it for now. 1028 */ 1029 if (sc->sc_state != ST_RUN) { 1030 if (sc->sc_state == ST_IDLE && udainit(um->um_ctlr)) 1031 printf("uda%d: still hung\n", um->um_ctlr); 1032 return; 1033 } 1034 1035 /* 1036 * If um_cmd is nonzero, this controller is on the Unibus 1037 * resource wait queue. It will not help to try more requests; 1038 * instead, when the Unibus unblocks and calls udadgo(), we 1039 * will call udastart() again. 1040 */ 1041 if (um->um_cmd) 1042 return; 1043 1044 sc->sc_flags |= SC_INSTART; 1045 udaddr = (struct udadevice *) um->um_addr; 1046 1047 loop: 1048 /* 1049 * Service the drive at the head of the queue. It may not 1050 * need anything, in which case it might be shutting down 1051 * in udaclose(). 1052 */ 1053 if ((dp = um->um_tab.b_actf) == NULL) 1054 goto out; 1055 if ((bp = dp->b_actf) == NULL) { 1056 dp->b_active = 0; 1057 um->um_tab.b_actf = dp->b_forw; 1058 if (ra_info[dp - udautab].ra_openpart == 0) 1059 wakeup((caddr_t)dp); /* finish close protocol */ 1060 goto loop; 1061 } 1062 1063 if (udaddr->udasa & UDA_ERR) { /* ctlr fatal error */ 1064 udasaerror(um, 1); 1065 goto out; 1066 } 1067 1068 /* 1069 * Get an MSCP packet, then figure out what to do. If 1070 * we cannot get a command packet, the command ring may 1071 * be too small: We should have at least as many command 1072 * packets as credits, for best performance. 1073 */ 1074 if ((mp = mscp_getcp(&sc->sc_mi, MSCP_DONTWAIT)) == NULL) { 1075 if (sc->sc_mi.mi_credits > MSCP_MINCREDITS && 1076 (sc->sc_flags & SC_GRIPED) == 0) { 1077 log(LOG_NOTICE, "uda%d: command ring too small\n", 1078 um->um_ctlr); 1079 sc->sc_flags |= SC_GRIPED;/* complain only once */ 1080 } 1081 goto out; 1082 } 1083 1084 /* 1085 * Bring the drive on line if it is not already. Get its status 1086 * if we do not already have it. Otherwise just start the transfer. 1087 */ 1088 ui = udadinfo[udaunit(bp->b_dev)]; 1089 if ((ui->ui_flags & UNIT_ONLINE) == 0) { 1090 mp->mscp_opcode = M_OP_ONLINE; 1091 goto common; 1092 } 1093 if ((ui->ui_flags & UNIT_HAVESTATUS) == 0) { 1094 mp->mscp_opcode = M_OP_GETUNITST; 1095 common: 1096 if (ui->ui_flags & UNIT_REQUEUE) panic("udastart"); 1097 /* 1098 * Take the drive off the controller queue. When the 1099 * command finishes, make sure the drive is requeued. 1100 */ 1101 um->um_tab.b_actf = dp->b_forw; 1102 dp->b_active = 0; 1103 ui->ui_flags |= UNIT_REQUEUE; 1104 mp->mscp_unit = ui->ui_slave; 1105 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 1106 sc->sc_flags |= SC_STARTPOLL; 1107 #ifdef POLLSTATS 1108 sc->sc_ncmd++; 1109 #endif 1110 goto loop; 1111 } 1112 1113 pp = &udalabel[ui->ui_unit].d_partitions[udapart(bp->b_dev)]; 1114 mp->mscp_opcode = (bp->b_flags & B_READ) ? M_OP_READ : M_OP_WRITE; 1115 mp->mscp_unit = ui->ui_slave; 1116 mp->mscp_seq.seq_lbn = bp->b_blkno + pp->p_offset; 1117 sz = (bp->b_bcount + DEV_BSIZE - 1) >> DEV_BSHIFT; 1118 mp->mscp_seq.seq_bytecount = bp->b_blkno + sz > pp->p_size ? 1119 (pp->p_size - bp->b_blkno) >> DEV_BSHIFT : bp->b_bcount; 1120 /* mscp_cmdref is filled in by mscp_go() */ 1121 1122 /* 1123 * Drop the packet pointer into the `command' field so udadgo() 1124 * can tell what to start. If ubago returns 1, we can do another 1125 * transfer. If not, um_cmd will still point at mp, so we will 1126 * know that we are waiting for resources. 1127 */ 1128 um->um_cmd = (int)mp; 1129 if (ubago(ui)) 1130 goto loop; 1131 1132 /* 1133 * All done, or blocked in ubago(). If we managed to 1134 * issue some commands, start up the beast. 1135 */ 1136 out: 1137 if (sc->sc_flags & SC_STARTPOLL) { 1138 #ifdef POLLSTATS 1139 udastats.cmd[sc->sc_ncmd]++; 1140 sc->sc_ncmd = 0; 1141 #endif 1142 i = ((struct udadevice *)um->um_addr)->udaip; 1143 } 1144 sc->sc_flags &= ~(SC_INSTART | SC_STARTPOLL); 1145 } 1146 1147 /* 1148 * Start a transfer. 1149 * 1150 * If we are not called from within udastart(), we must have been 1151 * blocked, so call udastart to do more requests (if any). If 1152 * this calls us again immediately we will not recurse, because 1153 * that time we will be in udastart(). Clever.... 1154 */ 1155 udadgo(um) 1156 register struct uba_ctlr *um; 1157 { 1158 struct uda_softc *sc = &uda_softc[um->um_ctlr]; 1159 struct mscp *mp = (struct mscp *)um->um_cmd; 1160 1161 um->um_tab.b_active++; /* another transfer going */ 1162 1163 /* 1164 * Fill in the MSCP packet and move the buffer to the 1165 * I/O wait queue. Mark the controller as no longer on 1166 * the resource queue, and remember to initiate polling. 1167 */ 1168 mp->mscp_seq.seq_buffer = UBAI_ADDR(um->um_ubinfo) | 1169 (UBAI_BDP(um->um_ubinfo) << 24); 1170 mscp_go(&sc->sc_mi, mp, um->um_ubinfo); 1171 um->um_cmd = 0; 1172 um->um_ubinfo = 0; /* tyke it awye */ 1173 sc->sc_flags |= SC_STARTPOLL; 1174 #ifdef POLLSTATS 1175 sc->sc_ncmd++; 1176 #endif 1177 if ((sc->sc_flags & SC_INSTART) == 0) 1178 udastart(um); 1179 } 1180 1181 udaiodone(mi, bp, info) 1182 register struct mscp_info *mi; 1183 struct buf *bp; 1184 int info; 1185 { 1186 register struct uba_ctlr *um = udaminfo[mi->mi_ctlr]; 1187 1188 um->um_ubinfo = info; 1189 ubadone(um); 1190 biodone(bp); 1191 if (um->um_bdp && mi->mi_wtab.av_forw == &mi->mi_wtab) 1192 ubarelse(um->um_ubanum, &um->um_bdp); 1193 um->um_tab.b_active--; /* another transfer done */ 1194 } 1195 1196 static struct saerr { 1197 int code; /* error code (including UDA_ERR) */ 1198 char *desc; /* what it means: Efoo => foo error */ 1199 } saerr[] = { 1200 { 0100001, "Eunibus packet read" }, 1201 { 0100002, "Eunibus packet write" }, 1202 { 0100003, "EUDA ROM and RAM parity" }, 1203 { 0100004, "EUDA RAM parity" }, 1204 { 0100005, "EUDA ROM parity" }, 1205 { 0100006, "Eunibus ring read" }, 1206 { 0100007, "Eunibus ring write" }, 1207 { 0100010, " unibus interrupt master failure" }, 1208 { 0100011, "Ehost access timeout" }, 1209 { 0100012, " host exceeded command limit" }, 1210 { 0100013, " unibus bus master failure" }, 1211 { 0100014, " DM XFC fatal error" }, 1212 { 0100015, " hardware timeout of instruction loop" }, 1213 { 0100016, " invalid virtual circuit id" }, 1214 { 0100017, "Eunibus interrupt write" }, 1215 { 0104000, "Efatal sequence" }, 1216 { 0104040, " D proc ALU" }, 1217 { 0104041, "ED proc control ROM parity" }, 1218 { 0105102, "ED proc w/no BD#2 or RAM parity" }, 1219 { 0105105, "ED proc RAM buffer" }, 1220 { 0105152, "ED proc SDI" }, 1221 { 0105153, "ED proc write mode wrap serdes" }, 1222 { 0105154, "ED proc read mode serdes, RSGEN & ECC" }, 1223 { 0106040, "EU proc ALU" }, 1224 { 0106041, "EU proc control reg" }, 1225 { 0106042, " U proc DFAIL/cntl ROM parity/BD #1 test CNT" }, 1226 { 0106047, " U proc const PROM err w/D proc running SDI test" }, 1227 { 0106055, " unexpected trap" }, 1228 { 0106071, "EU proc const PROM" }, 1229 { 0106072, "EU proc control ROM parity" }, 1230 { 0106200, "Estep 1 data" }, 1231 { 0107103, "EU proc RAM parity" }, 1232 { 0107107, "EU proc RAM buffer" }, 1233 { 0107115, " test count wrong (BD 12)" }, 1234 { 0112300, "Estep 2" }, 1235 { 0122240, "ENPR" }, 1236 { 0122300, "Estep 3" }, 1237 { 0142300, "Estep 4" }, 1238 { 0, " unknown error code" } 1239 }; 1240 1241 /* 1242 * If the error bit was set in the controller status register, gripe, 1243 * then (optionally) reset the controller and requeue pending transfers. 1244 */ 1245 udasaerror(um, doreset) 1246 register struct uba_ctlr *um; 1247 int doreset; 1248 { 1249 register int code = ((struct udadevice *)um->um_addr)->udasa; 1250 register struct saerr *e; 1251 1252 if ((code & UDA_ERR) == 0) 1253 return; 1254 for (e = saerr; e->code; e++) 1255 if (e->code == code) 1256 break; 1257 printf("uda%d: controller error, sa=0%o (%s%s)\n", 1258 um->um_ctlr, code, e->desc + 1, 1259 *e->desc == 'E' ? " error" : ""); 1260 if (doreset) { 1261 mscp_requeue(&uda_softc[um->um_ctlr].sc_mi); 1262 (void) udainit(um->um_ctlr); 1263 } 1264 } 1265 1266 /* 1267 * Interrupt routine. Depending on the state of the controller, 1268 * continue initialisation, or acknowledge command and response 1269 * interrupts, and process responses. 1270 */ 1271 udaintr(ctlr) 1272 int ctlr; 1273 { 1274 register struct uba_ctlr *um = udaminfo[ctlr]; 1275 register struct uda_softc *sc = &uda_softc[ctlr]; 1276 register struct udadevice *udaddr = (struct udadevice *)um->um_addr; 1277 register struct uda *ud; 1278 register struct mscp *mp; 1279 register int i; 1280 1281 #ifdef QBA 1282 splx(sc->sc_ipl); /* Qbus interrupt protocol is odd */ 1283 #endif 1284 sc->sc_wticks = 0; /* reset interrupt watchdog */ 1285 1286 /* 1287 * Combinations during steps 1, 2, and 3: STEPnMASK 1288 * corresponds to which bits should be tested; 1289 * STEPnGOOD corresponds to the pattern that should 1290 * appear after the interrupt from STEPn initialisation. 1291 * All steps test the bits in ALLSTEPS. 1292 */ 1293 #define ALLSTEPS (UDA_ERR|UDA_STEP4|UDA_STEP3|UDA_STEP2|UDA_STEP1) 1294 1295 #define STEP1MASK (ALLSTEPS | UDA_IE | UDA_NCNRMASK) 1296 #define STEP1GOOD (UDA_STEP2 | UDA_IE | (NCMDL2 << 3) | NRSPL2) 1297 1298 #define STEP2MASK (ALLSTEPS | UDA_IE | UDA_IVECMASK) 1299 #define STEP2GOOD (UDA_STEP3 | UDA_IE | (sc->sc_ivec >> 2)) 1300 1301 #define STEP3MASK ALLSTEPS 1302 #define STEP3GOOD UDA_STEP4 1303 1304 switch (sc->sc_state) { 1305 1306 case ST_IDLE: 1307 /* 1308 * Ignore unsolicited interrupts. 1309 */ 1310 log(LOG_WARNING, "uda%d: stray intr\n", ctlr); 1311 return; 1312 1313 case ST_STEP1: 1314 /* 1315 * Begin step two initialisation. 1316 */ 1317 if ((udaddr->udasa & STEP1MASK) != STEP1GOOD) { 1318 i = 1; 1319 initfailed: 1320 printf("uda%d: init step %d failed, sa=%b\n", 1321 ctlr, i, udaddr->udasa, udasr_bits); 1322 udasaerror(um, 0); 1323 sc->sc_state = ST_IDLE; 1324 if (sc->sc_flags & SC_DOWAKE) { 1325 sc->sc_flags &= ~SC_DOWAKE; 1326 wakeup((caddr_t)sc); 1327 } 1328 return; 1329 } 1330 udaddr->udasa = (int)&sc->sc_uda->uda_ca.ca_rspdsc[0] | 1331 (cpu == VAX_780 || cpu == VAX_8600 ? UDA_PI : 0); 1332 sc->sc_state = ST_STEP2; 1333 return; 1334 1335 case ST_STEP2: 1336 /* 1337 * Begin step 3 initialisation. 1338 */ 1339 if ((udaddr->udasa & STEP2MASK) != STEP2GOOD) { 1340 i = 2; 1341 goto initfailed; 1342 } 1343 udaddr->udasa = ((int)&sc->sc_uda->uda_ca.ca_rspdsc[0]) >> 16; 1344 sc->sc_state = ST_STEP3; 1345 return; 1346 1347 case ST_STEP3: 1348 /* 1349 * Set controller characteristics (finish initialisation). 1350 */ 1351 if ((udaddr->udasa & STEP3MASK) != STEP3GOOD) { 1352 i = 3; 1353 goto initfailed; 1354 } 1355 i = udaddr->udasa & 0xff; 1356 if (i != sc->sc_micro) { 1357 sc->sc_micro = i; 1358 printf("uda%d: version %d model %d\n", 1359 ctlr, i & 0xf, i >> 4); 1360 } 1361 1362 /* 1363 * Present the burst size, then remove it. Why this 1364 * should be done this way, I have no idea. 1365 * 1366 * Note that this assumes udaburst[ctlr] > 0. 1367 */ 1368 udaddr->udasa = UDA_GO | (udaburst[ctlr] - 1) << 2; 1369 udaddr->udasa = UDA_GO; 1370 printf("uda%d: DMA burst size set to %d\n", 1371 ctlr, udaburst[ctlr]); 1372 1373 udainitds(ctlr); /* initialise data structures */ 1374 1375 /* 1376 * Before we can get a command packet, we need some 1377 * credits. Fake some up to keep mscp_getcp() happy, 1378 * get a packet, and cancel all credits (the right 1379 * number should come back in the response to the 1380 * SCC packet). 1381 */ 1382 sc->sc_mi.mi_credits = MSCP_MINCREDITS + 1; 1383 mp = mscp_getcp(&sc->sc_mi, MSCP_DONTWAIT); 1384 if (mp == NULL) /* `cannot happen' */ 1385 panic("udaintr"); 1386 sc->sc_mi.mi_credits = 0; 1387 mp->mscp_opcode = M_OP_SETCTLRC; 1388 mp->mscp_unit = 0; 1389 mp->mscp_sccc.sccc_ctlrflags = M_CF_ATTN | M_CF_MISC | 1390 M_CF_THIS; 1391 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 1392 i = udaddr->udaip; 1393 sc->sc_state = ST_SETCHAR; 1394 return; 1395 1396 case ST_SETCHAR: 1397 case ST_RUN: 1398 /* 1399 * Handle Set Ctlr Characteristics responses and operational 1400 * responses (via mscp_dorsp). 1401 */ 1402 break; 1403 1404 default: 1405 printf("uda%d: driver bug, state %d\n", ctlr, sc->sc_state); 1406 panic("udastate"); 1407 } 1408 1409 if (udaddr->udasa & UDA_ERR) { /* ctlr fatal error */ 1410 udasaerror(um, 1); 1411 return; 1412 } 1413 1414 ud = &uda[ctlr]; 1415 1416 /* 1417 * Handle buffer purge requests. 1418 */ 1419 if (ud->uda_ca.ca_bdp) { 1420 UBAPURGE(um->um_hd->uh_uba, ud->uda_ca.ca_bdp); 1421 ud->uda_ca.ca_bdp = 0; 1422 udaddr->udasa = 0; /* signal purge complete */ 1423 } 1424 1425 /* 1426 * Check for response and command ring transitions. 1427 */ 1428 if (ud->uda_ca.ca_rspint) { 1429 ud->uda_ca.ca_rspint = 0; 1430 mscp_dorsp(&sc->sc_mi); 1431 } 1432 if (ud->uda_ca.ca_cmdint) { 1433 ud->uda_ca.ca_cmdint = 0; 1434 MSCP_DOCMD(&sc->sc_mi); 1435 } 1436 udastart(um); 1437 } 1438 1439 /* 1440 * Initialise the various data structures that control the UDA50. 1441 */ 1442 udainitds(ctlr) 1443 int ctlr; 1444 { 1445 register struct uda *ud = &uda[ctlr]; 1446 register struct uda *uud = uda_softc[ctlr].sc_uda; 1447 register struct mscp *mp; 1448 register int i; 1449 1450 for (i = 0, mp = ud->uda_rsp; i < NRSP; i++, mp++) { 1451 ud->uda_ca.ca_rspdsc[i] = MSCP_OWN | MSCP_INT | 1452 (long)&uud->uda_rsp[i].mscp_cmdref; 1453 mp->mscp_addr = &ud->uda_ca.ca_rspdsc[i]; 1454 mp->mscp_msglen = MSCP_MSGLEN; 1455 } 1456 for (i = 0, mp = ud->uda_cmd; i < NCMD; i++, mp++) { 1457 ud->uda_ca.ca_cmddsc[i] = MSCP_INT | 1458 (long)&uud->uda_cmd[i].mscp_cmdref; 1459 mp->mscp_addr = &ud->uda_ca.ca_cmddsc[i]; 1460 mp->mscp_msglen = MSCP_MSGLEN; 1461 } 1462 } 1463 1464 /* 1465 * Handle an error datagram. 1466 */ 1467 udadgram(mi, mp) 1468 struct mscp_info *mi; 1469 struct mscp *mp; 1470 { 1471 1472 mscp_decodeerror(mi->mi_md->md_mname, mi->mi_ctlr, mp); 1473 /* 1474 * SDI status information bytes 10 and 11 are the microprocessor 1475 * error code and front panel code respectively. These vary per 1476 * drive type and are printed purely for field service information. 1477 */ 1478 if (mp->mscp_format == M_FM_SDI) 1479 printf("\tsdi uproc error code 0x%x, front panel code 0x%x\n", 1480 mp->mscp_erd.erd_sdistat[10], 1481 mp->mscp_erd.erd_sdistat[11]); 1482 } 1483 1484 /* 1485 * The Set Controller Characteristics command finished. 1486 * Record the new state of the controller. 1487 */ 1488 udactlrdone(mi, mp) 1489 register struct mscp_info *mi; 1490 struct mscp *mp; 1491 { 1492 register struct uda_softc *sc = &uda_softc[mi->mi_ctlr]; 1493 1494 if ((mp->mscp_status & M_ST_MASK) == M_ST_SUCCESS) 1495 sc->sc_state = ST_RUN; 1496 else { 1497 printf("uda%d: SETCTLRC failed: ", 1498 mi->mi_ctlr, mp->mscp_status); 1499 mscp_printevent(mp); 1500 sc->sc_state = ST_IDLE; 1501 } 1502 if (sc->sc_flags & SC_DOWAKE) { 1503 sc->sc_flags &= ~SC_DOWAKE; 1504 wakeup((caddr_t)sc); 1505 } 1506 } 1507 1508 /* 1509 * Received a response from an as-yet unconfigured drive. Configure it 1510 * in, if possible. 1511 */ 1512 udaunconf(mi, mp) 1513 struct mscp_info *mi; 1514 register struct mscp *mp; 1515 { 1516 1517 /* 1518 * If it is a slave response, copy it to udaslavereply for 1519 * udaslave() to look at. 1520 */ 1521 if (mp->mscp_opcode == (M_OP_GETUNITST | M_OP_END) && 1522 (uda_softc[mi->mi_ctlr].sc_flags & SC_INSLAVE) != 0) { 1523 udaslavereply = *mp; 1524 return (MSCP_DONE); 1525 } 1526 1527 /* 1528 * Otherwise, it had better be an available attention response. 1529 */ 1530 if (mp->mscp_opcode != M_OP_AVAILATTN) 1531 return (MSCP_FAILED); 1532 1533 /* do what autoconf does */ 1534 return (MSCP_FAILED); /* not yet, arwhite, not yet */ 1535 } 1536 1537 /* 1538 * A drive came on line. Check its type and size. Return DONE if 1539 * we think the drive is truly on line. In any case, awaken anyone 1540 * sleeping on the drive on-line-ness. 1541 */ 1542 udaonline(ui, mp) 1543 register struct uba_device *ui; 1544 struct mscp *mp; 1545 { 1546 register struct ra_info *ra = &ra_info[ui->ui_unit]; 1547 1548 wakeup((caddr_t)&ui->ui_flags); 1549 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 1550 if (!cold) 1551 printf("uda%d: ra%d", ui->ui_ctlr, ui->ui_unit); 1552 printf(": attempt to bring on line failed: "); 1553 mscp_printevent(mp); 1554 ra->ra_state = CLOSED; 1555 return (MSCP_FAILED); 1556 } 1557 1558 ra->ra_state = OPENRAW; 1559 ra->ra_dsize = (daddr_t)mp->mscp_onle.onle_unitsize; 1560 if (!cold) 1561 printf("ra%d: uda%d, unit %d, size = %d sectors\n", ui->ui_unit, 1562 ui->ui_ctlr, mp->mscp_unit, ra->ra_dsize); 1563 /* can now compute ncyl */ 1564 ra->ra_geom.rg_ncyl = ra->ra_dsize / ra->ra_geom.rg_ntracks / 1565 ra->ra_geom.rg_nsectors; 1566 return (MSCP_DONE); 1567 } 1568 1569 /* 1570 * We got some (configured) unit's status. Return DONE if it succeeded. 1571 */ 1572 udagotstatus(ui, mp) 1573 register struct uba_device *ui; 1574 register struct mscp *mp; 1575 { 1576 1577 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 1578 printf("uda%d: attempt to get status for ra%d failed: ", 1579 ui->ui_ctlr, ui->ui_unit); 1580 mscp_printevent(mp); 1581 return (MSCP_FAILED); 1582 } 1583 /* record for (future) bad block forwarding and whatever else */ 1584 uda_rasave(ui->ui_unit, mp, 1); 1585 return (MSCP_DONE); 1586 } 1587 1588 /* 1589 * A transfer failed. We get a chance to fix or restart it. 1590 * Need to write the bad block forwaring code first.... 1591 */ 1592 /*ARGSUSED*/ 1593 udaioerror(ui, mp, bp) 1594 register struct uba_device *ui; 1595 register struct mscp *mp; 1596 struct buf *bp; 1597 { 1598 1599 if (mp->mscp_flags & M_EF_BBLKR) { 1600 /* 1601 * A bad block report. Eventually we will 1602 * restart this transfer, but for now, just 1603 * log it and give up. 1604 */ 1605 log(LOG_ERR, "ra%d: bad block report: %d%s\n", 1606 ui->ui_unit, mp->mscp_seq.seq_lbn, 1607 mp->mscp_flags & M_EF_BBLKU ? " + others" : ""); 1608 } else { 1609 /* 1610 * What the heck IS a `serious exception' anyway? 1611 * IT SURE WOULD BE NICE IF DEC SOLD DOCUMENTATION 1612 * FOR THEIR OWN CONTROLLERS. 1613 */ 1614 if (mp->mscp_flags & M_EF_SEREX) 1615 log(LOG_ERR, "ra%d: serious exception reported\n", 1616 ui->ui_unit); 1617 } 1618 return (MSCP_FAILED); 1619 } 1620 1621 /* 1622 * A replace operation finished. 1623 */ 1624 /*ARGSUSED*/ 1625 udareplace(ui, mp) 1626 struct uba_device *ui; 1627 struct mscp *mp; 1628 { 1629 1630 panic("udareplace"); 1631 } 1632 1633 /* 1634 * A bad block related operation finished. 1635 */ 1636 /*ARGSUSED*/ 1637 udabb(ui, mp, bp) 1638 struct uba_device *ui; 1639 struct mscp *mp; 1640 struct buf *bp; 1641 { 1642 1643 panic("udabb"); 1644 } 1645 1646 1647 /* 1648 * I/O controls. 1649 */ 1650 udaioctl(dev, cmd, data, flag) 1651 dev_t dev; 1652 int cmd; 1653 caddr_t data; 1654 int flag; 1655 { 1656 register int unit = udaunit(dev); 1657 register struct disklabel *lp; 1658 register struct ra_info *ra = &ra_info[unit]; 1659 int error = 0; 1660 1661 lp = &udalabel[unit]; 1662 1663 switch (cmd) { 1664 1665 case DIOCGDINFO: 1666 *(struct disklabel *)data = *lp; 1667 break; 1668 1669 case DIOCGPART: 1670 ((struct partinfo *)data)->disklab = lp; 1671 ((struct partinfo *)data)->part = 1672 &lp->d_partitions[udapart(dev)]; 1673 break; 1674 1675 case DIOCSDINFO: 1676 if ((flag & FWRITE) == 0) 1677 error = EBADF; 1678 else 1679 error = setdisklabel(lp, (struct disklabel *)data, 1680 (ra->ra_state == OPENRAW) ? 0 : ra->ra_openpart); 1681 break; 1682 1683 case DIOCWLABEL: 1684 if ((flag & FWRITE) == 0) 1685 error = EBADF; 1686 else 1687 ra->ra_wlabel = *(int *)data; 1688 break; 1689 1690 case DIOCWDINFO: 1691 if ((flag & FWRITE) == 0) 1692 error = EBADF; 1693 else if ((error = setdisklabel(lp, (struct disklabel *)data, 1694 (ra->ra_state == OPENRAW) ? 0 : ra->ra_openpart)) == 0) { 1695 int wlab; 1696 1697 ra->ra_state = OPEN; 1698 /* simulate opening partition 0 so write succeeds */ 1699 ra->ra_openpart |= (1 << 0); /* XXX */ 1700 wlab = ra->ra_wlabel; 1701 ra->ra_wlabel = 1; 1702 error = writedisklabel(dev, udastrategy, lp); 1703 ra->ra_openpart = ra->ra_copenpart | ra->ra_bopenpart; 1704 ra->ra_wlabel = wlab; 1705 } 1706 break; 1707 1708 #ifdef notyet 1709 case UDAIOCREPLACE: 1710 /* 1711 * Initiate bad block replacement for the given LBN. 1712 * (Should we allow modifiers?) 1713 */ 1714 error = EOPNOTSUPP; 1715 break; 1716 1717 case UDAIOCGMICRO: 1718 /* 1719 * Return the microcode revision for the UDA50 running 1720 * this drive. 1721 */ 1722 *(int *)data = uda_softc[uddinfo[unit]->ui_ctlr].sc_micro; 1723 break; 1724 #endif 1725 1726 default: 1727 error = ENOTTY; 1728 break; 1729 } 1730 return (error); 1731 } 1732 1733 /* 1734 * A Unibus reset has occurred on UBA uban. Reinitialise the controller(s) 1735 * on that Unibus, and requeue outstanding I/O. 1736 */ 1737 udareset(uban) 1738 int uban; 1739 { 1740 register struct uba_ctlr *um; 1741 register struct uda_softc *sc; 1742 register int ctlr; 1743 1744 for (ctlr = 0, sc = uda_softc; ctlr < NUDA; ctlr++, sc++) { 1745 if ((um = udaminfo[ctlr]) == NULL || um->um_ubanum != uban || 1746 um->um_alive == 0) 1747 continue; 1748 printf(" uda%d", ctlr); 1749 1750 /* 1751 * Our BDP (if any) is gone; our command (if any) is 1752 * flushed; the device is no longer mapped; and the 1753 * UDA50 is not yet initialised. 1754 */ 1755 if (um->um_bdp) { 1756 printf("<%d>", UBAI_BDP(um->um_bdp)); 1757 um->um_bdp = 0; 1758 } 1759 um->um_ubinfo = 0; 1760 um->um_cmd = 0; 1761 sc->sc_flags &= ~SC_MAPPED; 1762 sc->sc_state = ST_IDLE; 1763 1764 /* reset queues and requeue pending transfers */ 1765 mscp_requeue(&sc->sc_mi); 1766 1767 /* 1768 * If it fails to initialise we will notice later and 1769 * try again (and again...). Do not call udastart() 1770 * here; it will be done after the controller finishes 1771 * initialisation. 1772 */ 1773 if (udainit(ctlr)) 1774 printf(" (hung)"); 1775 } 1776 } 1777 1778 /* 1779 * Watchdog timer: If the controller is active, and no interrupts 1780 * have occurred for 30 seconds, assume it has gone away. 1781 */ 1782 udawatch() 1783 { 1784 register int i; 1785 register struct uba_ctlr *um; 1786 register struct uda_softc *sc; 1787 1788 timeout(udawatch, (caddr_t) 0, hz); /* every second */ 1789 for (i = 0, sc = uda_softc; i < NUDA; i++, sc++) { 1790 if ((um = udaminfo[i]) == 0 || !um->um_alive) 1791 continue; 1792 if (sc->sc_state == ST_IDLE) 1793 continue; 1794 if (sc->sc_state == ST_RUN && !um->um_tab.b_active) 1795 sc->sc_wticks = 0; 1796 else if (++sc->sc_wticks >= 30) { 1797 sc->sc_wticks = 0; 1798 printf("uda%d: lost interrupt\n", i); 1799 ubareset(um->um_ubanum); 1800 } 1801 } 1802 } 1803 1804 /* 1805 * Do a panic dump. We set up the controller for one command packet 1806 * and one response packet, for which we use `struct uda1'. 1807 */ 1808 struct uda1 { 1809 struct uda1ca uda1_ca; /* communications area */ 1810 struct mscp uda1_rsp; /* response packet */ 1811 struct mscp uda1_cmd; /* command packet */ 1812 } uda1; 1813 1814 #define DBSIZE 32 /* dump 16K at a time */ 1815 1816 udadump(dev) 1817 dev_t dev; 1818 { 1819 struct udadevice *udaddr; 1820 struct uda1 *ud_ubaddr; 1821 char *start; 1822 int num, blk, unit, maxsz, blkoff, reg; 1823 struct partition *pp; 1824 register struct uba_regs *uba; 1825 register struct uba_device *ui; 1826 register struct uda1 *ud; 1827 register struct pte *io; 1828 register int i; 1829 1830 /* 1831 * Make sure the device is a reasonable place on which to dump. 1832 */ 1833 unit = udaunit(dev); 1834 if (unit >= NRA) 1835 return (ENXIO); 1836 #define phys(cast, addr) ((cast) ((int)addr & 0x7fffffff)) 1837 ui = phys(struct uba_device *, udadinfo[unit]); 1838 if (ui == NULL || ui->ui_alive == 0) 1839 return (ENXIO); 1840 1841 /* 1842 * Find and initialise the UBA; get the physical address of the 1843 * device registers, and of communications area and command and 1844 * response packet. 1845 */ 1846 uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba; 1847 ubainit(uba); 1848 udaddr = (struct udadevice *)ui->ui_physaddr; 1849 ud = phys(struct uda1 *, &uda1); 1850 1851 /* 1852 * Map the ca+packets into Unibus I/O space so the UDA50 can get 1853 * at them. Use the registers at the end of the Unibus map (since 1854 * we will use the registers at the beginning to map the memory 1855 * we are dumping). 1856 */ 1857 num = btoc(sizeof(struct uda1)) + 1; 1858 reg = NUBMREG - num; 1859 io = &uba->uba_map[reg]; 1860 for (i = 0; i < num; i++) 1861 *(int *)io++ = UBAMR_MRV | (btop(ud) + i); 1862 ud_ubaddr = (struct uda1 *)(((int)ud & PGOFSET) | (reg << 9)); 1863 1864 /* 1865 * Initialise the controller, with one command and one response 1866 * packet. 1867 */ 1868 udaddr->udaip = 0; 1869 if (udadumpwait(udaddr, UDA_STEP1)) 1870 return (EFAULT); 1871 udaddr->udasa = UDA_ERR; 1872 if (udadumpwait(udaddr, UDA_STEP2)) 1873 return (EFAULT); 1874 udaddr->udasa = (int)&ud_ubaddr->uda1_ca.ca_rspdsc; 1875 if (udadumpwait(udaddr, UDA_STEP3)) 1876 return (EFAULT); 1877 udaddr->udasa = ((int)&ud_ubaddr->uda1_ca.ca_rspdsc) >> 16; 1878 if (udadumpwait(udaddr, UDA_STEP4)) 1879 return (EFAULT); 1880 uda_softc[ui->ui_ctlr].sc_micro = udaddr->udasa & 0xff; 1881 udaddr->udasa = UDA_GO; 1882 1883 /* 1884 * Set up the command and response descriptor, then set the 1885 * controller characteristics and bring the drive on line. 1886 * Note that all uninitialised locations in uda1_cmd are zero. 1887 */ 1888 ud->uda1_ca.ca_rspdsc = (long)&ud_ubaddr->uda1_rsp.mscp_cmdref; 1889 ud->uda1_ca.ca_cmddsc = (long)&ud_ubaddr->uda1_cmd.mscp_cmdref; 1890 /* ud->uda1_cmd.mscp_sccc.sccc_ctlrflags = 0; */ 1891 /* ud->uda1_cmd.mscp_sccc.sccc_version = 0; */ 1892 if (udadumpcmd(M_OP_SETCTLRC, ud, ui)) 1893 return (EFAULT); 1894 ud->uda1_cmd.mscp_unit = ui->ui_slave; 1895 if (udadumpcmd(M_OP_ONLINE, ud, ui)) 1896 return (EFAULT); 1897 1898 pp = phys(struct partition *, 1899 &udalabel[unit].d_partitions[udapart(dev)]); 1900 maxsz = pp->p_size; 1901 blkoff = pp->p_offset; 1902 1903 /* 1904 * Dump all of physical memory, or as much as will fit in the 1905 * space provided. 1906 */ 1907 start = 0; 1908 num = maxfree; 1909 if (dumplo < 0) 1910 return (EINVAL); 1911 if (dumplo + num >= maxsz) 1912 num = maxsz - dumplo; 1913 blkoff += dumplo; 1914 1915 /* 1916 * Write out memory, DBSIZE pages at a time. 1917 * N.B.: this code depends on the fact that the sector 1918 * size == the page size. 1919 */ 1920 while (num > 0) { 1921 blk = num > DBSIZE ? DBSIZE : num; 1922 io = uba->uba_map; 1923 /* 1924 * Map in the pages to write, leaving an invalid entry 1925 * at the end to guard against wild Unibus transfers. 1926 * Then do the write. 1927 */ 1928 for (i = 0; i < blk; i++) 1929 *(int *)io++ = UBAMR_MRV | (btop(start) + i); 1930 *(int *)io = 0; 1931 ud->uda1_cmd.mscp_unit = ui->ui_slave; 1932 ud->uda1_cmd.mscp_seq.seq_lbn = btop(start) + blkoff; 1933 ud->uda1_cmd.mscp_seq.seq_bytecount = blk << PGSHIFT; 1934 if (udadumpcmd(M_OP_WRITE, ud, ui)) 1935 return (EIO); 1936 start += blk << PGSHIFT; 1937 num -= blk; 1938 } 1939 return (0); /* made it! */ 1940 } 1941 1942 /* 1943 * Wait for some of the bits in `bits' to come on. If the error bit 1944 * comes on, or ten seconds pass without response, return true (error). 1945 */ 1946 udadumpwait(udaddr, bits) 1947 register struct udadevice *udaddr; 1948 register int bits; 1949 { 1950 register int timo = todr() + 1000; 1951 1952 while ((udaddr->udasa & bits) == 0) { 1953 if (udaddr->udasa & UDA_ERR) { 1954 printf("udasa=%b\ndump ", udaddr->udasa, udasr_bits); 1955 return (1); 1956 } 1957 if (todr() >= timo) { 1958 printf("timeout\ndump "); 1959 return (1); 1960 } 1961 } 1962 return (0); 1963 } 1964 1965 /* 1966 * Feed a command to the UDA50, wait for its response, and return 1967 * true iff something went wrong. 1968 */ 1969 udadumpcmd(op, ud, ui) 1970 int op; 1971 register struct uda1 *ud; 1972 struct uba_device *ui; 1973 { 1974 register struct udadevice *udaddr; 1975 register int n; 1976 #define mp (&ud->uda1_rsp) 1977 1978 udaddr = (struct udadevice *)ui->ui_physaddr; 1979 ud->uda1_cmd.mscp_opcode = op; 1980 ud->uda1_cmd.mscp_msglen = MSCP_MSGLEN; 1981 ud->uda1_rsp.mscp_msglen = MSCP_MSGLEN; 1982 ud->uda1_ca.ca_rspdsc |= MSCP_OWN | MSCP_INT; 1983 ud->uda1_ca.ca_cmddsc |= MSCP_OWN | MSCP_INT; 1984 if (udaddr->udasa & UDA_ERR) { 1985 printf("udasa=%b\ndump ", udaddr->udasa, udasr_bits); 1986 return (1); 1987 } 1988 n = udaddr->udaip; 1989 n = todr() + 1000; 1990 for (;;) { 1991 if (todr() > n) { 1992 printf("timeout\ndump "); 1993 return (1); 1994 } 1995 if (ud->uda1_ca.ca_cmdint) 1996 ud->uda1_ca.ca_cmdint = 0; 1997 if (ud->uda1_ca.ca_rspint == 0) 1998 continue; 1999 ud->uda1_ca.ca_rspint = 0; 2000 if (mp->mscp_opcode == (op | M_OP_END)) 2001 break; 2002 printf("\n"); 2003 switch (MSCP_MSGTYPE(mp->mscp_msgtc)) { 2004 2005 case MSCPT_SEQ: 2006 printf("sequential"); 2007 break; 2008 2009 case MSCPT_DATAGRAM: 2010 mscp_decodeerror("uda", ui->ui_ctlr, mp); 2011 printf("datagram"); 2012 break; 2013 2014 case MSCPT_CREDITS: 2015 printf("credits"); 2016 break; 2017 2018 case MSCPT_MAINTENANCE: 2019 printf("maintenance"); 2020 break; 2021 2022 default: 2023 printf("unknown (type 0x%x)", 2024 MSCP_MSGTYPE(mp->mscp_msgtc)); 2025 break; 2026 } 2027 printf(" ignored\ndump "); 2028 ud->uda1_ca.ca_rspdsc |= MSCP_OWN | MSCP_INT; 2029 } 2030 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 2031 printf("error: op 0x%x => 0x%x status 0x%x\ndump ", op, 2032 mp->mscp_opcode, mp->mscp_status); 2033 return (1); 2034 } 2035 return (0); 2036 #undef mp 2037 } 2038 2039 /* 2040 * Return the size of a partition, if known, or -1 if not. 2041 */ 2042 udasize(dev) 2043 dev_t dev; 2044 { 2045 register int unit = udaunit(dev); 2046 register struct uba_device *ui; 2047 2048 if (unit >= NRA || (ui = udadinfo[unit]) == NULL || 2049 ui->ui_alive == 0 || (ui->ui_flags & UNIT_ONLINE) == 0 || 2050 ra_info[unit].ra_state != OPEN) 2051 return (-1); 2052 return ((int)udalabel[unit].d_partitions[udapart(dev)].p_size); 2053 } 2054 2055 #ifdef COMPAT_42 2056 /* 2057 * Tables mapping unlabelled drives. 2058 */ 2059 struct size { 2060 daddr_t nblocks; 2061 daddr_t blkoff; 2062 } ra60_sizes[8] = { 2063 15884, 0, /* A=sectors 0 thru 15883 */ 2064 33440, 15884, /* B=sectors 15884 thru 49323 */ 2065 400176, 0, /* C=sectors 0 thru 400175 */ 2066 82080, 49324, /* 4.2 G => D=sectors 49324 thru 131403 */ 2067 268772, 131404, /* 4.2 H => E=sectors 131404 thru 400175 */ 2068 350852, 49324, /* F=sectors 49324 thru 400175 */ 2069 157570, 242606, /* UCB G => G=sectors 242606 thru 400175 */ 2070 193282, 49324, /* UCB H => H=sectors 49324 thru 242605 */ 2071 }, ra70_sizes[8] = { 2072 15884, 0, /* A=blk 0 thru 15883 */ 2073 33440, 15972, /* B=blk 15972 thru 49323 */ 2074 -1, 0, /* C=blk 0 thru end */ 2075 15884, 341220, /* D=blk 341220 thru 357103 */ 2076 55936, 357192, /* E=blk 357192 thru 413127 */ 2077 -1, 413457, /* F=blk 413457 thru end */ 2078 -1, 341220, /* G=blk 341220 thru end */ 2079 291346, 49731, /* H=blk 49731 thru 341076 */ 2080 }, ra80_sizes[8] = { 2081 15884, 0, /* A=sectors 0 thru 15883 */ 2082 33440, 15884, /* B=sectors 15884 thru 49323 */ 2083 242606, 0, /* C=sectors 0 thru 242605 */ 2084 0, 0, /* D=unused */ 2085 193282, 49324, /* UCB H => E=sectors 49324 thru 242605 */ 2086 82080, 49324, /* 4.2 G => F=sectors 49324 thru 131403 */ 2087 192696, 49910, /* G=sectors 49910 thru 242605 */ 2088 111202, 131404, /* 4.2 H => H=sectors 131404 thru 242605 */ 2089 }, ra81_sizes[8] ={ 2090 /* 2091 * These are the new standard partition sizes for ra81's. 2092 * An RA_COMPAT system is compiled with D, E, and F corresponding 2093 * to the 4.2 partitions for G, H, and F respectively. 2094 */ 2095 #ifndef UCBRA 2096 15884, 0, /* A=sectors 0 thru 15883 */ 2097 66880, 16422, /* B=sectors 16422 thru 83301 */ 2098 891072, 0, /* C=sectors 0 thru 891071 */ 2099 #ifdef RA_COMPAT 2100 82080, 49324, /* 4.2 G => D=sectors 49324 thru 131403 */ 2101 759668, 131404, /* 4.2 H => E=sectors 131404 thru 891071 */ 2102 478582, 412490, /* 4.2 F => F=sectors 412490 thru 891071 */ 2103 #else 2104 15884, 375564, /* D=sectors 375564 thru 391447 */ 2105 307200, 391986, /* E=sectors 391986 thru 699185 */ 2106 191352, 699720, /* F=sectors 699720 thru 891071 */ 2107 #endif RA_COMPAT 2108 515508, 375564, /* G=sectors 375564 thru 891071 */ 2109 291346, 83538, /* H=sectors 83538 thru 374883 */ 2110 2111 /* 2112 * These partitions correspond to the sizes used by sites at Berkeley, 2113 * and by those sites that have received copies of the Berkeley driver 2114 * with deltas 6.2 or greater (11/15/83). 2115 */ 2116 #else UCBRA 2117 2118 15884, 0, /* A=sectors 0 thru 15883 */ 2119 33440, 15884, /* B=sectors 15884 thru 49323 */ 2120 891072, 0, /* C=sectors 0 thru 891071 */ 2121 15884, 242606, /* D=sectors 242606 thru 258489 */ 2122 307200, 258490, /* E=sectors 258490 thru 565689 */ 2123 325382, 565690, /* F=sectors 565690 thru 891071 */ 2124 648466, 242606, /* G=sectors 242606 thru 891071 */ 2125 193282, 49324, /* H=sectors 49324 thru 242605 */ 2126 2127 #endif UCBRA 2128 }, ra82_sizes[8] = { 2129 15884, 0, /* A=blk 0 thru 15883 */ 2130 66880, 16245, /* B=blk 16245 thru 83124 */ 2131 -1, 0, /* C=blk 0 thru end */ 2132 15884, 375345, /* D=blk 375345 thru 391228 */ 2133 307200, 391590, /* E=blk 391590 thru 698789 */ 2134 -1, 699390, /* F=blk 699390 thru end */ 2135 -1, 375345, /* G=blk 375345 thru end */ 2136 291346, 83790, /* H=blk 83790 thru 375135 */ 2137 }, rc25_sizes[8] = { 2138 15884, 0, /* A=blk 0 thru 15883 */ 2139 10032, 15884, /* B=blk 15884 thru 49323 */ 2140 -1, 0, /* C=blk 0 thru end */ 2141 0, 0, /* D=blk 340670 thru 356553 */ 2142 0, 0, /* E=blk 356554 thru 412489 */ 2143 0, 0, /* F=blk 412490 thru end */ 2144 -1, 25916, /* G=blk 49324 thru 131403 */ 2145 0, 0, /* H=blk 131404 thru end */ 2146 }, rd52_sizes[8] = { 2147 15884, 0, /* A=blk 0 thru 15883 */ 2148 9766, 15884, /* B=blk 15884 thru 25649 */ 2149 -1, 0, /* C=blk 0 thru end */ 2150 0, 0, /* D=unused */ 2151 0, 0, /* E=unused */ 2152 0, 0, /* F=unused */ 2153 -1, 25650, /* G=blk 25650 thru end */ 2154 0, 0, /* H=unused */ 2155 }, rd53_sizes[8] = { 2156 15884, 0, /* A=blk 0 thru 15883 */ 2157 33440, 15884, /* B=blk 15884 thru 49323 */ 2158 -1, 0, /* C=blk 0 thru end */ 2159 0, 0, /* D=unused */ 2160 33440, 0, /* E=blk 0 thru 33439 */ 2161 -1, 33440, /* F=blk 33440 thru end */ 2162 -1, 49324, /* G=blk 49324 thru end */ 2163 -1, 15884, /* H=blk 15884 thru end */ 2164 }, rx50_sizes[8] = { 2165 800, 0, /* A=blk 0 thru 799 */ 2166 0, 0, 2167 -1, 0, /* C=blk 0 thru end */ 2168 0, 0, 2169 0, 0, 2170 0, 0, 2171 0, 0, 2172 0, 0, 2173 }; 2174 2175 /* 2176 * Media ID decoding table. 2177 */ 2178 struct udatypes { 2179 u_long ut_id; /* media drive ID */ 2180 char *ut_name; /* drive type name */ 2181 struct size *ut_sizes; /* partition tables */ 2182 int ut_nsectors, ut_ntracks, ut_ncylinders; 2183 } udatypes[] = { 2184 { MSCP_MKDRIVE2('R', 'A', 60), "ra60", ra60_sizes, 42, 4, 2382 }, 2185 { MSCP_MKDRIVE2('R', 'A', 70), "ra70", ra70_sizes, 33, 11, 1507 }, 2186 { MSCP_MKDRIVE2('R', 'A', 80), "ra80", ra80_sizes, 31, 14, 559 }, 2187 { MSCP_MKDRIVE2('R', 'A', 81), "ra81", ra81_sizes, 51, 14, 1248 }, 2188 { MSCP_MKDRIVE2('R', 'A', 82), "ra82", ra82_sizes, 57, 14, 1423 }, 2189 { MSCP_MKDRIVE2('R', 'C', 25), "rc25-removable", 2190 rc25_sizes, 42, 4, 302 }, 2191 { MSCP_MKDRIVE3('R', 'C', 'F', 25), "rc25-fixed", 2192 rc25_sizes, 42, 4, 302 }, 2193 { MSCP_MKDRIVE2('R', 'D', 52), "rd52", rd52_sizes, 18, 7, 480 }, 2194 { MSCP_MKDRIVE2('R', 'D', 53), "rd53", rd53_sizes, 18, 8, 963 }, 2195 { MSCP_MKDRIVE2('R', 'X', 50), "rx50", rx50_sizes, 10, 1, 80 }, 2196 0 2197 }; 2198 2199 #define NTYPES (sizeof(udatypes) / sizeof(*udatypes)) 2200 2201 udamaptype(unit, lp) 2202 int unit; 2203 register struct disklabel *lp; 2204 { 2205 register struct udatypes *ut; 2206 register struct size *sz; 2207 register struct partition *pp; 2208 register char *p; 2209 register int i; 2210 register struct ra_info *ra = &ra_info[unit]; 2211 2212 i = MSCP_MEDIA_DRIVE(ra->ra_mediaid); 2213 for (ut = udatypes; ut->ut_id; ut++) 2214 if (ut->ut_id == i && 2215 ut->ut_nsectors == ra->ra_geom.rg_nsectors && 2216 ut->ut_ntracks == ra->ra_geom.rg_ntracks && 2217 ut->ut_ncylinders == ra->ra_geom.rg_ncyl) 2218 goto found; 2219 2220 /* not one we know; fake up a label for the whole drive */ 2221 uda_makefakelabel(ra, lp); 2222 i = ra->ra_mediaid; /* print the port type too */ 2223 addlog(": no partition table for %c%c %c%c%c%d, size %d;\n\ 2224 using (s,t,c)=(%d,%d,%d)", 2225 MSCP_MID_CHAR(4, i), MSCP_MID_CHAR(3, i), 2226 MSCP_MID_CHAR(2, i), MSCP_MID_CHAR(1, i), 2227 MSCP_MID_CHAR(0, i), MSCP_MID_NUM(i), lp->d_secperunit, 2228 lp->d_nsectors, lp->d_ntracks, lp->d_ncylinders); 2229 if (!cold) 2230 addlog("\n"); 2231 return (0); 2232 found: 2233 p = ut->ut_name; 2234 for (i = 0; i < sizeof(lp->d_typename) - 1 && *p; i++) 2235 lp->d_typename[i] = *p++; 2236 lp->d_typename[i] = 0; 2237 sz = ut->ut_sizes; 2238 lp->d_nsectors = ut->ut_nsectors; 2239 lp->d_ntracks = ut->ut_ntracks; 2240 lp->d_ncylinders = ut->ut_ncylinders; 2241 lp->d_npartitions = 8; 2242 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 2243 for (pp = lp->d_partitions; pp < &lp->d_partitions[8]; pp++, sz++) { 2244 pp->p_offset = sz->blkoff; 2245 if ((pp->p_size = sz->nblocks) == (u_long)-1) 2246 pp->p_size = ra->ra_dsize - sz->blkoff; 2247 } 2248 return (1); 2249 } 2250 #endif /* COMPAT_42 */ 2251 2252 /* 2253 * Construct a label for a drive from geometry information 2254 * if we have no better information. 2255 */ 2256 uda_makefakelabel(ra, lp) 2257 register struct ra_info *ra; 2258 register struct disklabel *lp; 2259 { 2260 lp->d_nsectors = ra->ra_geom.rg_nsectors; 2261 lp->d_ntracks = ra->ra_geom.rg_ntracks; 2262 lp->d_ncylinders = ra->ra_geom.rg_ncyl; 2263 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 2264 bcopy("ra??", lp->d_typename, sizeof("ra??")); 2265 lp->d_npartitions = 1; 2266 lp->d_partitions[0].p_offset = 0; 2267 lp->d_partitions[0].p_size = lp->d_secperunit; 2268 } 2269 #endif /* NUDA > 0 */ 2270