siop2.c revision 1.1
1 /* $NetBSD: siop2.c,v 1.1 1999/03/07 22:16:19 is Exp $ */ 2 3 /* 4 * Copyright (c) 1994,1998 Michael L. Hitch 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Van Jacobson of Lawrence Berkeley Laboratory. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)siop.c 7.5 (Berkeley) 5/4/91 40 */ 41 42 /* 43 * AMIGA 53C720/770 scsi adaptor driver 44 */ 45 46 #include "opt_ddb.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/device.h> 51 #include <sys/disklabel.h> 52 #include <sys/dkstat.h> 53 #include <sys/buf.h> 54 #include <sys/malloc.h> 55 #include <dev/scsipi/scsi_all.h> 56 #include <dev/scsipi/scsipi_all.h> 57 #include <dev/scsipi/scsiconf.h> 58 #include <machine/cpu.h> 59 #include <amiga/amiga/custom.h> 60 #include <amiga/amiga/isr.h> 61 62 #define ARCH_720 63 64 #include <amiga/dev/siopreg.h> 65 #include <amiga/dev/siopvar.h> 66 67 /* 68 * SCSI delays 69 * In u-seconds, primarily for state changes on the SPC. 70 */ 71 #define SCSI_CMD_WAIT 500000 /* wait per step of 'immediate' cmds */ 72 #define SCSI_DATA_WAIT 500000 /* wait per data in/out step */ 73 #define SCSI_INIT_WAIT 500000 /* wait per step (both) during init */ 74 75 void siopng_select __P((struct siop_softc *)); 76 void siopngabort __P((struct siop_softc *, siop_regmap_p, char *)); 77 void siopngerror __P((struct siop_softc *, siop_regmap_p, u_char)); 78 void siopngstart __P((struct siop_softc *)); 79 int siopng_checkintr __P((struct siop_softc *, u_char, u_char, u_short, int *)); 80 void siopngreset __P((struct siop_softc *)); 81 void siopngsetdelay __P((int)); 82 void siopng_scsidone __P((struct siop_acb *, int)); 83 void siopng_sched __P((struct siop_softc *)); 84 int siopng_poll __P((struct siop_softc *, struct siop_acb *)); 85 void siopngintr __P((struct siop_softc *)); 86 void scsi_period_to_siopng __P((struct siop_softc *, int)); 87 void siopng_start __P((struct siop_softc *, int, int, u_char *, int, u_char *, int)); 88 void siopng_dump_acb __P((struct siop_acb *)); 89 90 /* 53C720/770 script */ 91 const 92 #include <amiga/dev/siop2_script.out> 93 94 /* default to not inhibit sync negotiation on any drive */ 95 u_char siopng_inhibit_sync[16] = { 0, 0, 0, 0, 0, 0, 0 }; /* initialize, so patchable */ 96 u_char siopng_allow_disc[16] = {3, 3, 3, 3, 3, 3, 3, 3}; 97 int siopng_no_dma = 0; 98 99 int siopng_reset_delay = 250; /* delay after reset, in milleseconds */ 100 101 int siopng_cmd_wait = SCSI_CMD_WAIT; 102 int siopng_data_wait = SCSI_DATA_WAIT; 103 int siopng_init_wait = SCSI_INIT_WAIT; 104 105 #define DEBUG_SYNC 106 107 #ifdef DEBUG_SYNC 108 /* 109 * sync period transfer lookup - only valid for 66Mhz clock 110 */ 111 #ifdef FIXME 112 static struct { 113 unsigned char p; /* period from sync request message */ 114 unsigned char r; /* siop_period << 4 | sbcl */ 115 } sync_tab[] = { 116 { 60/4, 0<<4 | 1}, 117 { 76/4, 1<<4 | 1}, 118 { 92/4, 2<<4 | 1}, 119 { 92/4, 0<<4 | 2}, 120 {108/4, 3<<4 | 1}, 121 {116/4, 1<<4 | 2}, 122 {120/4, 4<<4 | 1}, 123 {120/4, 0<<4 | 3}, 124 {136/4, 5<<4 | 1}, 125 {140/4, 2<<4 | 2}, 126 {152/4, 6<<4 | 1}, 127 {152/4, 1<<4 | 3}, 128 {164/4, 3<<4 | 2}, 129 {168/4, 7<<4 | 1}, 130 {180/4, 2<<4 | 3}, 131 {184/4, 4<<4 | 2}, 132 {208/4, 5<<4 | 2}, 133 {212/4, 3<<4 | 3}, 134 {232/4, 6<<4 | 2}, 135 {240/4, 4<<4 | 3}, 136 {256/4, 7<<4 | 2}, 137 {272/4, 5<<4 | 3}, 138 {300/4, 6<<4 | 3}, 139 {332/4, 7<<4 | 3} 140 }; 141 #endif 142 #endif 143 144 #ifdef DEBUG 145 /* 146 * 0x01 - full debug 147 * 0x02 - DMA chaining 148 * 0x04 - siopngintr 149 * 0x08 - phase mismatch 150 * 0x10 - <not used> 151 * 0x20 - panic on unhandled exceptions 152 * 0x100 - disconnect/reselect 153 */ 154 int siopng_debug = 0; 155 int siopngsync_debug = 0; 156 int siopngdma_hits = 0; 157 int siopngdma_misses = 0; 158 int siopngchain_ints = 0; 159 int siopngstarts = 0; 160 int siopngints = 0; 161 int siopngphmm = 0; 162 #define SIOP_TRACE_SIZE 128 163 #define SIOP_TRACE(a,b,c,d) \ 164 siopng_trbuf[siopng_trix] = (a); \ 165 siopng_trbuf[siopng_trix+1] = (b); \ 166 siopng_trbuf[siopng_trix+2] = (c); \ 167 siopng_trbuf[siopng_trix+3] = (d); \ 168 siopng_trix = (siopng_trix + 4) & (SIOP_TRACE_SIZE - 1); 169 u_char siopng_trbuf[SIOP_TRACE_SIZE]; 170 int siopng_trix; 171 void siopng_dump __P((struct siop_softc *)); 172 void siopng_dump_trace __P((void)); 173 #else 174 #define SIOP_TRACE(a,b,c,d) 175 #endif 176 177 178 /* 179 * default minphys routine for siopng based controllers 180 */ 181 void 182 siopng_minphys(bp) 183 struct buf *bp; 184 { 185 186 /* 187 * No max transfer at this level. 188 */ 189 minphys(bp); 190 } 191 192 /* 193 * used by specific siopng controller 194 * 195 */ 196 int 197 siopng_scsicmd(xs) 198 struct scsipi_xfer *xs; 199 { 200 struct siop_acb *acb; 201 struct siop_softc *sc; 202 struct scsipi_link *slp; 203 int flags, s; 204 205 slp = xs->sc_link; 206 sc = slp->adapter_softc; 207 flags = xs->flags; 208 209 /* XXXX ?? */ 210 if (flags & SCSI_DATA_UIO) 211 panic("siopng: scsi data uio requested"); 212 213 /* XXXX ?? */ 214 if (sc->sc_nexus && flags & SCSI_POLL) 215 /* panic("siopng_scsicmd: busy");*/ 216 printf("siopng_scsicmd: busy\n"); 217 218 s = splbio(); 219 acb = sc->free_list.tqh_first; 220 if (acb) { 221 TAILQ_REMOVE(&sc->free_list, acb, chain); 222 } 223 splx(s); 224 225 if (acb == NULL) { 226 xs->error = XS_DRIVER_STUFFUP; 227 return(TRY_AGAIN_LATER); 228 } 229 230 acb->flags = ACB_ACTIVE; 231 acb->xs = xs; 232 bcopy(xs->cmd, &acb->cmd, xs->cmdlen); 233 acb->clen = xs->cmdlen; 234 acb->daddr = xs->data; 235 acb->dleft = xs->datalen; 236 237 s = splbio(); 238 TAILQ_INSERT_TAIL(&sc->ready_list, acb, chain); 239 240 if (sc->sc_nexus == NULL) 241 siopng_sched(sc); 242 243 splx(s); 244 245 if (flags & SCSI_POLL || siopng_no_dma) 246 return(siopng_poll(sc, acb)); 247 return(SUCCESSFULLY_QUEUED); 248 } 249 250 int 251 siopng_poll(sc, acb) 252 struct siop_softc *sc; 253 struct siop_acb *acb; 254 { 255 siop_regmap_p rp = sc->sc_siopp; 256 struct scsipi_xfer *xs = acb->xs; 257 int i; 258 int status; 259 u_char istat; 260 u_char dstat; 261 u_short sist; 262 int s; 263 int to; 264 265 s = splbio(); 266 to = xs->timeout / 1000; 267 if (sc->nexus_list.tqh_first) 268 printf("%s: siopng_poll called with disconnected device\n", 269 sc->sc_dev.dv_xname); 270 for (;;) { 271 /* use cmd_wait values? */ 272 i = 50000; 273 /* XXX spl0(); */ 274 while (((istat = rp->siop_istat) & 275 (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 276 if (--i <= 0) { 277 #ifdef DEBUG 278 printf ("waiting: tgt %d cmd %02x sbcl %02x istat %02x sbdl %04x\n dsp %lx (+%lx) dcmd %lx ds %p timeout %d\n", 279 xs->sc_link->scsipi_scsi.target, acb->cmd.opcode, 280 rp->siop_sbcl, istat, rp->siop_sbdl, rp->siop_dsp, 281 rp->siop_dsp - sc->sc_scriptspa, 282 *((long *)&rp->siop_dcmd), &acb->ds, acb->xs->timeout); 283 #endif 284 i = 50000; 285 --to; 286 if (to <= 0) { 287 siopngreset(sc); 288 return(COMPLETE); 289 } 290 } 291 delay(20); 292 } 293 sist = rp->siop_sist; 294 dstat = rp->siop_dstat; 295 if (siopng_checkintr(sc, istat, dstat, sist, &status)) { 296 if (acb != sc->sc_nexus) 297 printf("%s: siopng_poll disconnected device completed\n", 298 sc->sc_dev.dv_xname); 299 else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 300 sc->sc_flags &= ~SIOP_INTSOFF; 301 rp->siop_sien = sc->sc_sien; 302 rp->siop_dien = sc->sc_dien; 303 } 304 siopng_scsidone(sc->sc_nexus, status); 305 } 306 if (xs->flags & ITSDONE) 307 break; 308 } 309 splx(s); 310 return (COMPLETE); 311 } 312 313 /* 314 * start next command that's ready 315 */ 316 void 317 siopng_sched(sc) 318 struct siop_softc *sc; 319 { 320 struct scsipi_link *slp; 321 struct siop_acb *acb; 322 int i; 323 324 #ifdef DEBUG 325 if (sc->sc_nexus) { 326 printf("%s: siopng_sched- nexus %p/%d ready %p/%d\n", 327 sc->sc_dev.dv_xname, sc->sc_nexus, 328 sc->sc_nexus->xs->sc_link->scsipi_scsi.target, 329 sc->ready_list.tqh_first, 330 sc->ready_list.tqh_first->xs->sc_link->scsipi_scsi.target); 331 return; 332 } 333 #endif 334 for (acb = sc->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) { 335 slp = acb->xs->sc_link; 336 i = slp->scsipi_scsi.target; 337 if(!(sc->sc_tinfo[i].lubusy & (1 << slp->scsipi_scsi.lun))) { 338 struct siop_tinfo *ti = &sc->sc_tinfo[i]; 339 340 TAILQ_REMOVE(&sc->ready_list, acb, chain); 341 sc->sc_nexus = acb; 342 slp = acb->xs->sc_link; 343 ti = &sc->sc_tinfo[slp->scsipi_scsi.target]; 344 ti->lubusy |= (1 << slp->scsipi_scsi.lun); 345 break; 346 } 347 } 348 349 if (acb == NULL) { 350 #ifdef DEBUGXXX 351 printf("%s: siopng_sched didn't find ready command\n", 352 sc->sc_dev.dv_xname); 353 #endif 354 return; 355 } 356 357 if (acb->xs->flags & SCSI_RESET) 358 siopngreset(sc); 359 360 #if 0 361 acb->cmd.bytes[0] |= slp->scsipi_scsi.lun << 5; /* XXXX */ 362 #endif 363 ++sc->sc_active; 364 siopng_select(sc); 365 } 366 367 void 368 siopng_scsidone(acb, stat) 369 struct siop_acb *acb; 370 int stat; 371 { 372 struct scsipi_xfer *xs; 373 struct scsipi_link *slp; 374 struct siop_softc *sc; 375 int dosched = 0; 376 377 if (acb == NULL || (xs = acb->xs) == NULL) { 378 #ifdef DIAGNOSTIC 379 printf("siopng_scsidone: NULL acb or scsipi_xfer\n"); 380 #if defined(DEBUG) && defined(DDB) 381 Debugger(); 382 #endif 383 #endif 384 return; 385 } 386 slp = xs->sc_link; 387 sc = slp->adapter_softc; 388 /* 389 * is this right? 390 */ 391 xs->status = stat; 392 393 if (xs->error == XS_NOERROR && !(acb->flags & ACB_CHKSENSE)) { 394 if (stat == SCSI_CHECK) { 395 struct scsipi_sense *ss = (void *)&acb->cmd; 396 bzero(ss, sizeof(*ss)); 397 ss->opcode = REQUEST_SENSE; 398 ss->byte2 = slp->scsipi_scsi.lun << 5; 399 ss->length = sizeof(struct scsipi_sense_data); 400 acb->clen = sizeof(*ss); 401 acb->daddr = (char *)&xs->sense.scsi_sense; 402 acb->dleft = sizeof(struct scsipi_sense_data); 403 acb->flags = ACB_ACTIVE | ACB_CHKSENSE; 404 TAILQ_INSERT_HEAD(&sc->ready_list, acb, chain); 405 --sc->sc_active; 406 sc->sc_tinfo[slp->scsipi_scsi.target].lubusy &= 407 ~(1 << slp->scsipi_scsi.lun); 408 sc->sc_tinfo[slp->scsipi_scsi.target].senses++; 409 if (sc->sc_nexus == acb) { 410 sc->sc_nexus = NULL; 411 siopng_sched(sc); 412 } 413 SIOP_TRACE('d','s',0,0) 414 return; 415 } 416 } 417 if (xs->error == XS_NOERROR && (acb->flags & ACB_CHKSENSE)) { 418 xs->error = XS_SENSE; 419 } else { 420 xs->resid = 0; /* XXXX */ 421 } 422 #if whataboutthisone 423 case SCSI_BUSY: 424 xs->error = XS_BUSY; 425 break; 426 #endif 427 xs->flags |= ITSDONE; 428 429 /* 430 * Remove the ACB from whatever queue it's on. We have to do a bit of 431 * a hack to figure out which queue it's on. Note that it is *not* 432 * necessary to cdr down the ready queue, but we must cdr down the 433 * nexus queue and see if it's there, so we can mark the unit as no 434 * longer busy. This code is sickening, but it works. 435 */ 436 if (acb == sc->sc_nexus) { 437 sc->sc_nexus = NULL; 438 sc->sc_tinfo[slp->scsipi_scsi.target].lubusy &= 439 ~(1<<slp->scsipi_scsi.lun); 440 if (sc->ready_list.tqh_first) 441 dosched = 1; /* start next command */ 442 --sc->sc_active; 443 SIOP_TRACE('d','a',stat,0) 444 } else if (sc->ready_list.tqh_last == &acb->chain.tqe_next) { 445 TAILQ_REMOVE(&sc->ready_list, acb, chain); 446 SIOP_TRACE('d','r',stat,0) 447 } else { 448 register struct siop_acb *acb2; 449 for (acb2 = sc->nexus_list.tqh_first; acb2; 450 acb2 = acb2->chain.tqe_next) 451 if (acb2 == acb) { 452 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 453 sc->sc_tinfo[slp->scsipi_scsi.target].lubusy 454 &= ~(1<<slp->scsipi_scsi.lun); 455 --sc->sc_active; 456 break; 457 } 458 if (acb2) 459 ; 460 else if (acb->chain.tqe_next) { 461 TAILQ_REMOVE(&sc->ready_list, acb, chain); 462 --sc->sc_active; 463 } else { 464 printf("%s: can't find matching acb\n", 465 sc->sc_dev.dv_xname); 466 #ifdef DDB 467 /* Debugger(); */ 468 #endif 469 } 470 SIOP_TRACE('d','n',stat,0); 471 } 472 /* Put it on the free list. */ 473 acb->flags = ACB_FREE; 474 TAILQ_INSERT_HEAD(&sc->free_list, acb, chain); 475 476 sc->sc_tinfo[slp->scsipi_scsi.target].cmds++; 477 478 scsipi_done(xs); 479 480 if (dosched && sc->sc_nexus == NULL) 481 siopng_sched(sc); 482 } 483 484 void 485 siopngabort(sc, rp, where) 486 register struct siop_softc *sc; 487 siop_regmap_p rp; 488 char *where; 489 { 490 #ifdef fix_this 491 int i; 492 #endif 493 494 printf ("%s: abort %s: dstat %02x, istat %02x sist %04x sien %04x sbcl %02x\n", 495 sc->sc_dev.dv_xname, 496 where, rp->siop_dstat, rp->siop_istat, rp->siop_sist, 497 rp->siop_sien, rp->siop_sbcl); 498 siopng_dump_registers(sc); 499 500 if (sc->sc_active > 0) { 501 #ifdef TODO 502 SET_SBIC_cmd (rp, SBIC_CMD_ABORT); 503 WAIT_CIP (rp); 504 505 GET_SBIC_asr (rp, asr); 506 if (asr & (SBIC_ASR_BSY|SBIC_ASR_LCI)) 507 { 508 /* ok, get more drastic.. */ 509 510 SET_SBIC_cmd (rp, SBIC_CMD_RESET); 511 delay(25); 512 SBIC_WAIT(rp, SBIC_ASR_INT, 0); 513 GET_SBIC_csr (rp, csr); /* clears interrupt also */ 514 515 return; 516 } 517 518 do 519 { 520 SBIC_WAIT (rp, SBIC_ASR_INT, 0); 521 GET_SBIC_csr (rp, csr); 522 } 523 while ((csr != SBIC_CSR_DISC) && (csr != SBIC_CSR_DISC_1) 524 && (csr != SBIC_CSR_CMD_INVALID)); 525 #endif 526 527 /* lets just hope it worked.. */ 528 #ifdef fix_this 529 for (i = 0; i < 2; ++i) { 530 if (sc->sc_iob[i].sc_xs && &sc->sc_iob[i] != 531 sc->sc_cur) { 532 printf ("siopngabort: cleanup!\n"); 533 sc->sc_iob[i].sc_xs = NULL; 534 } 535 } 536 #endif /* fix_this */ 537 /* sc->sc_active = 0; */ 538 } 539 } 540 541 void 542 siopnginitialize(sc) 543 struct siop_softc *sc; 544 { 545 int i; 546 u_int inhibit_sync; 547 extern u_long scsi_nosync; 548 extern int shift_nosync; 549 550 /* 551 * Need to check that scripts is on a long word boundary 552 * Also should verify that dev doesn't span non-contiguous 553 * physical pages. 554 */ 555 sc->sc_scriptspa = kvtop((caddr_t)siopng_scripts); 556 557 /* 558 * malloc sc_acb to ensure that DS is on a long word boundary. 559 */ 560 561 MALLOC(sc->sc_acb, struct siop_acb *, 562 sizeof(struct siop_acb) * SIOP_NACB, M_DEVBUF, M_NOWAIT); 563 if (sc->sc_acb == NULL) 564 panic("siopnginitialize: ACB malloc failed!"); 565 566 sc->sc_tcp[1] = 1000 / sc->sc_clock_freq; 567 sc->sc_tcp[2] = 1500 / sc->sc_clock_freq; 568 sc->sc_tcp[3] = 2000 / sc->sc_clock_freq; 569 sc->sc_minsync = sc->sc_tcp[1]; /* in 4ns units */ 570 if (sc->sc_minsync < 25) 571 sc->sc_minsync = 25; 572 if (sc->sc_clock_freq <= 25) { 573 sc->sc_dcntl |= 0x80; /* SCLK/1 */ 574 sc->sc_tcp[0] = sc->sc_tcp[1]; 575 } else if (sc->sc_clock_freq <= 37) { 576 sc->sc_dcntl |= 0x40; /* SCLK/1.5 */ 577 sc->sc_tcp[0] = sc->sc_tcp[2]; 578 } else if (sc->sc_clock_freq <= 50) { 579 sc->sc_dcntl |= 0x00; /* SCLK/2 */ 580 sc->sc_tcp[0] = sc->sc_tcp[3]; 581 } else { 582 sc->sc_dcntl |= 0xc0; /* SCLK/3 */ 583 sc->sc_tcp[0] = 3000 / sc->sc_clock_freq; 584 } 585 586 if (scsi_nosync) { 587 inhibit_sync = (scsi_nosync >> shift_nosync) & 0xff; 588 shift_nosync += 8; 589 #ifdef DEBUG 590 if (inhibit_sync) 591 printf("%s: Inhibiting synchronous transfer %02x\n", 592 sc->sc_dev.dv_xname, inhibit_sync); 593 #endif 594 for (i = 0; i < 8; ++i) 595 if (inhibit_sync & (1 << i)) 596 siopng_inhibit_sync[i] = 1; 597 } 598 599 siopngreset (sc); 600 } 601 602 void 603 siopngreset(sc) 604 struct siop_softc *sc; 605 { 606 siop_regmap_p rp; 607 u_int i, s; 608 u_short dummy; 609 struct siop_acb *acb; 610 611 rp = sc->sc_siopp; 612 613 if (sc->sc_flags & SIOP_ALIVE) 614 siopngabort(sc, rp, "reset"); 615 616 printf("%s: ", sc->sc_dev.dv_xname); /* XXXX */ 617 618 s = splbio(); 619 620 /* 621 * Reset the chip 622 * XXX - is this really needed? 623 */ 624 rp->siop_istat |= SIOP_ISTAT_ABRT; /* abort current script */ 625 rp->siop_istat |= SIOP_ISTAT_RST; /* reset chip */ 626 rp->siop_istat &= ~SIOP_ISTAT_RST; 627 /* 628 * Reset SCSI bus (do we really want this?) 629 */ 630 rp->siop_sien = 0; 631 rp->siop_scntl1 |= SIOP_SCNTL1_RST; 632 delay(1); 633 rp->siop_scntl1 &= ~SIOP_SCNTL1_RST; 634 635 /* 636 * Set up various chip parameters 637 */ 638 rp->siop_stest1 |= 0x08; /* SCLK doubler enable */ 639 delay(20); 640 rp->siop_stest3 |= 0x20; /* Halt SCSI clock */ 641 rp->siop_scntl3 = 0x15; /* SCF/CCF*/ 642 rp->siop_stest1 |= 0x04; /* SCLK doubler select */ 643 rp->siop_stest3 &= ~0x20; /* Clear Halt SCSI clock */ 644 rp->siop_scntl0 = SIOP_ARB_FULL | /*SIOP_SCNTL0_EPC |*/ SIOP_SCNTL0_EPG; 645 rp->siop_dcntl = sc->sc_dcntl; 646 rp->siop_dmode = 0xc0; /* XXX burst length */ 647 rp->siop_sien = 0x00; /* don't enable interrupts yet */ 648 rp->siop_dien = 0x00; /* don't enable interrupts yet */ 649 rp->siop_scid = sc->sc_link.scsipi_scsi.adapter_target | 0x60; 650 rp->siop_respid = 1 << sc->sc_link.scsipi_scsi.adapter_target; 651 rp->siop_dwt = 0x00; 652 rp->siop_stime0 = 0x0c; /* XXXXX check */ 653 654 /* will need to re-negotiate sync xfers */ 655 bzero(&sc->sc_sync, sizeof (sc->sc_sync)); 656 657 i = rp->siop_istat; 658 if (i & SIOP_ISTAT_SIP) 659 dummy = rp->siop_sist; 660 if (i & SIOP_ISTAT_DIP) 661 dummy = rp->siop_dstat; 662 663 splx (s); 664 665 delay (siopng_reset_delay * 1000); 666 /* 667 * Check if upper half of SCSI bus is unterminated, and disallow 668 * disconnections if it appears to be unterminated. 669 */ 670 if ((rp->siop_sbdl & 0xff00) == 0xff00) { 671 printf(" NO WIDE TERM"); 672 for (i = 0; i < 16; ++i) 673 siopng_allow_disc[i] = 0; 674 } 675 printf("siopng id %d reset V%d\n", sc->sc_link.scsipi_scsi.adapter_target, 676 rp->siop_ctest3 >> 4); 677 678 if ((sc->sc_flags & SIOP_ALIVE) == 0) { 679 TAILQ_INIT(&sc->ready_list); 680 TAILQ_INIT(&sc->nexus_list); 681 TAILQ_INIT(&sc->free_list); 682 sc->sc_nexus = NULL; 683 acb = sc->sc_acb; 684 bzero(acb, sizeof(struct siop_acb) * SIOP_NACB); 685 for (i = 0; i < SIOP_NACB; i++) { 686 TAILQ_INSERT_TAIL(&sc->free_list, acb, chain); 687 acb++; 688 } 689 bzero(sc->sc_tinfo, sizeof(sc->sc_tinfo)); 690 } else { 691 if (sc->sc_nexus != NULL) { 692 sc->sc_nexus->xs->error = XS_DRIVER_STUFFUP; 693 siopng_scsidone(sc->sc_nexus, sc->sc_nexus->stat[0]); 694 } 695 while ((acb = sc->nexus_list.tqh_first) > 0) { 696 acb->xs->error = XS_DRIVER_STUFFUP; 697 siopng_scsidone(acb, acb->stat[0]); 698 } 699 } 700 701 sc->sc_flags |= SIOP_ALIVE; 702 sc->sc_flags &= ~(SIOP_INTDEFER|SIOP_INTSOFF); 703 /* enable SCSI and DMA interrupts */ 704 sc->sc_sien = SIOP_SIEN_MA | SIOP_SIEN_STO | /*SIOP_SIEN_GEN |*/ 705 /*SIOP_SIEN_SEL |*/ SIOP_SIEN_SGE | SIOP_SIEN_UDC | 706 SIOP_SIEN_RST | SIOP_SIEN_PAR; 707 sc->sc_dien = SIOP_DIEN_BF | SIOP_DIEN_ABRT | SIOP_DIEN_SIR | 708 /*SIOP_DIEN_WTD |*/ SIOP_DIEN_IID; 709 rp->siop_sien = sc->sc_sien; 710 rp->siop_dien = sc->sc_dien; 711 siopng_dump_registers(sc); 712 } 713 714 /* 715 * Setup Data Storage for 53C720/770 and start SCRIPTS processing 716 */ 717 718 void 719 siopng_start (sc, target, lun, cbuf, clen, buf, len) 720 struct siop_softc *sc; 721 int target; 722 int lun; 723 u_char *cbuf; 724 int clen; 725 u_char *buf; 726 int len; 727 { 728 siop_regmap_p rp = sc->sc_siopp; 729 int nchain; 730 int count, tcount; 731 char *addr, *dmaend; 732 struct siop_acb *acb = sc->sc_nexus; 733 #ifdef DEBUG 734 int i; 735 #endif 736 737 #ifdef DEBUG 738 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 739 printf ("ACK! siopng was busy: rp %p script %p dsa %p active %ld\n", 740 rp, &scripts, &acb->ds, sc->sc_active); 741 printf ("istat %02x sfbr %02x respid %02x sien %04x dien %02x\n", 742 rp->siop_istat, rp->siop_sfbr, rp->siop_respid, 743 rp->siop_sien, rp->siop_dien); 744 #ifdef DDB 745 /*Debugger();*/ 746 #endif 747 } 748 #endif 749 acb->msgout[0] = MSG_IDENTIFY | lun; 750 if (siopng_allow_disc[target] & 2 || 751 (siopng_allow_disc[target] && len == 0)) 752 acb->msgout[0] = MSG_IDENTIFY_DR | lun; 753 acb->status = 0; 754 acb->stat[0] = -1; 755 acb->msg[0] = -1; 756 acb->ds.scsi_addr = (target << 16) | (sc->sc_sync[target].sxfer << 8) | 757 (sc->sc_sync[target].sbcl << 24); 758 acb->ds.idlen = 1; 759 acb->ds.idbuf = (char *) kvtop(&acb->msgout[0]); 760 acb->ds.cmdlen = clen; 761 acb->ds.cmdbuf = (char *) kvtop(cbuf); 762 acb->ds.stslen = 1; 763 acb->ds.stsbuf = (char *) kvtop(&acb->stat[0]); 764 acb->ds.msglen = 1; 765 acb->ds.msgbuf = (char *) kvtop(&acb->msg[0]); 766 acb->msg[1] = -1; 767 acb->ds.msginlen = 1; 768 acb->ds.extmsglen = 1; 769 acb->ds.synmsglen = 3; 770 acb->ds.msginbuf = (char *) kvtop(&acb->msg[1]); 771 acb->ds.extmsgbuf = (char *) kvtop(&acb->msg[2]); 772 acb->ds.synmsgbuf = (char *) kvtop(&acb->msg[3]); 773 bzero(&acb->ds.chain, sizeof (acb->ds.chain)); 774 775 if (sc->sc_sync[target].state == SYNC_START) { 776 if (siopng_inhibit_sync[target]) { 777 sc->sc_sync[target].state = SYNC_DONE; 778 sc->sc_sync[target].sbcl = 5; /* XXX */ 779 sc->sc_sync[target].sxfer = 0; 780 #ifdef DEBUG 781 if (siopngsync_debug) 782 printf ("Forcing target %d asynchronous\n", target); 783 #endif 784 } 785 else { 786 acb->msg[2] = -1; 787 acb->msgout[1] = MSG_EXT_MESSAGE; 788 acb->msgout[2] = 3; 789 acb->msgout[3] = MSG_SYNC_REQ; 790 #ifdef MAXTOR_SYNC_KLUDGE 791 acb->msgout[4] = 50 / 4; /* ask for ridiculous period */ 792 #else 793 acb->msgout[4] = sc->sc_minsync; 794 #endif 795 acb->msgout[5] = SIOP_MAX_OFFSET; 796 acb->ds.idlen = 6; 797 sc->sc_sync[target].state = SYNC_SENT; 798 #ifdef DEBUG 799 if (siopngsync_debug) 800 printf ("Sending sync request to target %d\n", target); 801 #endif 802 } 803 } 804 805 /* 806 * Build physical DMA addresses for scatter/gather I/O 807 */ 808 acb->iob_buf = buf; 809 acb->iob_len = len; 810 acb->iob_curbuf = acb->iob_curlen = 0; 811 nchain = 0; 812 count = len; 813 addr = buf; 814 dmaend = NULL; 815 while (count > 0) { 816 acb->ds.chain[nchain].databuf = (char *) kvtop (addr); 817 if (count < (tcount = NBPG - ((int) addr & PGOFSET))) 818 tcount = count; 819 acb->ds.chain[nchain].datalen = tcount; 820 addr += tcount; 821 count -= tcount; 822 if (acb->ds.chain[nchain].databuf == dmaend) { 823 dmaend += acb->ds.chain[nchain].datalen; 824 acb->ds.chain[nchain].datalen = 0; 825 acb->ds.chain[--nchain].datalen += tcount; 826 #ifdef DEBUG 827 ++siopngdma_hits; 828 #endif 829 } 830 else { 831 dmaend = acb->ds.chain[nchain].databuf + 832 acb->ds.chain[nchain].datalen; 833 acb->ds.chain[nchain].datalen = tcount; 834 #ifdef DEBUG 835 if (nchain) /* Don't count miss on first one */ 836 ++siopngdma_misses; 837 #endif 838 } 839 ++nchain; 840 } 841 #ifdef DEBUG 842 if (nchain != 1 && len != 0 && siopng_debug & 3) { 843 printf ("DMA chaining set: %d\n", nchain); 844 for (i = 0; i < nchain; ++i) { 845 printf (" [%d] %8p %lx\n", i, acb->ds.chain[i].databuf, 846 acb->ds.chain[i].datalen); 847 } 848 } 849 #endif 850 851 /* push data cache for all data the 53c720/770 needs to access */ 852 dma_cachectl ((caddr_t)acb, sizeof (struct siop_acb)); 853 dma_cachectl (cbuf, clen); 854 if (buf != NULL && len != 0) 855 dma_cachectl (buf, len); 856 #ifdef DEBUG 857 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 858 printf ("ACK! siopng was busy at start: rp %p script %p dsa %p active %ld\n", 859 rp, &scripts, &acb->ds, sc->sc_active); 860 #ifdef DDB 861 /*Debugger();*/ 862 #endif 863 } 864 #endif 865 if (sc->nexus_list.tqh_first == NULL) { 866 if (rp->siop_istat & SIOP_ISTAT_CON) 867 printf("%s: siopng_select while connected?\n", 868 sc->sc_dev.dv_xname); 869 rp->siop_temp = 0; 870 #ifndef FIXME 871 rp->siop_scntl3 = sc->sc_sync[target].sbcl; 872 #endif 873 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 874 rp->siop_dsp = sc->sc_scriptspa; 875 SIOP_TRACE('s',1,0,0) 876 } else { 877 if ((rp->siop_istat & SIOP_ISTAT_CON) == 0) { 878 rp->siop_istat = SIOP_ISTAT_SIGP; 879 SIOP_TRACE('s',2,0,0); 880 } 881 else { 882 SIOP_TRACE('s',3,rp->siop_istat,0); 883 } 884 } 885 #ifdef DEBUG 886 ++siopngstarts; 887 #endif 888 } 889 890 /* 891 * Process a DMA or SCSI interrupt from the 53C720/770 SIOP 892 */ 893 894 int 895 siopng_checkintr(sc, istat, dstat, sist, status) 896 struct siop_softc *sc; 897 u_char istat; 898 u_char dstat; 899 u_short sist; 900 int *status; 901 { 902 siop_regmap_p rp = sc->sc_siopp; 903 struct siop_acb *acb = sc->sc_nexus; 904 int target = 0; 905 int dfifo, dbc, sstat1; 906 907 dfifo = rp->siop_dfifo; 908 dbc = rp->siop_dbc0; 909 sstat1 = rp->siop_sstat1; 910 rp->siop_ctest3 |= SIOP_CTEST8_CLF; 911 while ((rp->siop_ctest1 & SIOP_CTEST1_FMT) != SIOP_CTEST1_FMT) 912 ; 913 rp->siop_ctest3 &= ~SIOP_CTEST8_CLF; 914 #ifdef DEBUG 915 ++siopngints; 916 #if 0 917 if (siopng_debug & 0x100) { 918 DCIAS(&acb->stat[0]); /* XXX */ 919 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %x sbcl %x sts %x msg %x\n", 920 istat, dstat, sist, rp->siop_dsps, rp->siop_sbcl, acb->stat[0], acb->msg[0]); 921 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 922 acb->msg[0], acb->msg[1], acb->msg[2], 923 acb->msg[3], acb->msg[4], acb->msg[5]); 924 } 925 #endif 926 if (rp->siop_dsp && (rp->siop_dsp < sc->sc_scriptspa || 927 rp->siop_dsp >= sc->sc_scriptspa + sizeof(scripts))) { 928 printf ("%s: dsp not within script dsp %lx scripts %lx:%lx", 929 sc->sc_dev.dv_xname, rp->siop_dsp, sc->sc_scriptspa, 930 sc->sc_scriptspa + sizeof(scripts)); 931 printf(" istat %x dstat %x sist %x\n", 932 istat, dstat, sist); 933 #ifdef DDB 934 Debugger(); 935 #endif 936 } 937 #endif 938 SIOP_TRACE('i',dstat,istat,(istat&SIOP_ISTAT_DIP)?rp->siop_dsps&0xff:sist); 939 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff00) { 940 /* Normal completion status, or check condition */ 941 #ifdef DEBUG 942 if (rp->siop_dsa != kvtop((caddr_t)&acb->ds)) { 943 printf ("siopng: invalid dsa: %lx %x\n", rp->siop_dsa, 944 kvtop((caddr_t)&acb->ds)); 945 panic("*** siopng DSA invalid ***"); 946 } 947 #endif 948 target = acb->xs->sc_link->scsipi_scsi.target; 949 if (sc->sc_sync[target].state == SYNC_SENT) { 950 #ifdef DEBUG 951 if (siopngsync_debug) 952 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 953 acb->msg[0], acb->msg[1], acb->msg[2], 954 acb->msg[3], acb->msg[4], acb->msg[5]); 955 #endif 956 if (acb->msg[1] == 0xff) 957 printf ("%s: target %d ignored sync request\n", 958 sc->sc_dev.dv_xname, target); 959 else if (acb->msg[1] == MSG_REJECT) 960 printf ("%s: target %d rejected sync request\n", 961 sc->sc_dev.dv_xname, target); 962 sc->sc_sync[target].state = SYNC_DONE; 963 sc->sc_sync[target].sxfer = 0; 964 sc->sc_sync[target].sbcl = 5; /* XXX */ 965 if (acb->msg[2] == 3 && 966 acb->msg[3] == MSG_SYNC_REQ && 967 acb->msg[5] != 0) { 968 #ifdef MAXTOR_KLUDGE 969 /* 970 * Kludge for my Maxtor XT8580S 971 * It accepts whatever we request, even 972 * though it won't work. So we ask for 973 * a short period than we can handle. If 974 * the device says it can do it, use 208ns. 975 * If the device says it can do less than 976 * 100ns, then we limit it to 100ns. 977 */ 978 if (acb->msg[4] && acb->msg[4] < 100 / 4) { 979 #ifdef DEBUG 980 printf ("%d: target %d wanted %dns period\n", 981 sc->sc_dev.dv_xname, target, 982 acb->msg[4] * 4); 983 #endif 984 if (acb->msg[4] == 50 / 4) 985 acb->msg[4] = 208 / 4; 986 else 987 acb->msg[4] = 100 / 4; 988 } 989 #endif /* MAXTOR_KLUDGE */ 990 printf ("%s: target %d now synchronous, period=%dns, offset=%d\n", 991 sc->sc_dev.dv_xname, target, 992 acb->msg[4] * 4, acb->msg[5]); 993 scsi_period_to_siopng (sc, target); 994 } 995 } 996 dma_cachectl(&acb->stat[0], 1); 997 *status = acb->stat[0]; 998 #ifdef DEBUG 999 if (rp->siop_sbcl & SIOP_BSY) { 1000 /*printf ("ACK! siop was busy at end: rp %x script %x dsa %x\n", 1001 rp, &scripts, &acb->ds);*/ 1002 #ifdef DDB 1003 /*Debugger();*/ 1004 #endif 1005 } 1006 if (acb->msg[0] != 0x00) 1007 printf("%s: message was not COMMAND COMPLETE: %x\n", 1008 sc->sc_dev.dv_xname, acb->msg[0]); 1009 #endif 1010 if (sc->nexus_list.tqh_first) 1011 rp->siop_dcntl |= SIOP_DCNTL_STD; 1012 return 1; 1013 } 1014 if (sist & SIOP_SIST_MA) { /* Phase mismatch */ 1015 #ifdef DEBUG 1016 ++siopngphmm; 1017 if (acb == NULL) 1018 printf("%s: Phase mismatch with no active command?\n", 1019 sc->sc_dev.dv_xname); 1020 #endif 1021 if (acb->iob_len) { 1022 int adjust; 1023 adjust = ((dfifo - (dbc & 0x7f)) & 0x7f); 1024 if (sstat1 & SIOP_SSTAT1_ORF) 1025 ++adjust; 1026 if (sstat1 & SIOP_SSTAT1_OLF) 1027 ++adjust; 1028 acb->iob_curlen = *((long *)&rp->siop_dcmd) & 0xffffff; 1029 acb->iob_curlen += adjust; 1030 acb->iob_curbuf = *((long *)&rp->siop_dnad) - adjust; 1031 #ifdef DEBUG 1032 if (siopng_debug & 0x100) { 1033 int i; 1034 printf ("Phase mismatch: curbuf %lx curlen %lx dfifo %x dbc %x sstat1 %x adjust %x sbcl %x starts %d acb %p\n", 1035 acb->iob_curbuf, acb->iob_curlen, dfifo, 1036 dbc, sstat1, adjust, rp->siop_sbcl, siopngstarts, acb); 1037 if (acb->ds.chain[1].datalen) { 1038 for (i = 0; acb->ds.chain[i].datalen; ++i) 1039 printf("chain[%d] addr %p len %lx\n", 1040 i, acb->ds.chain[i].databuf, 1041 acb->ds.chain[i].datalen); 1042 } 1043 } 1044 #endif 1045 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1046 } 1047 #ifdef DEBUG 1048 SIOP_TRACE('m',rp->siop_sbcl,(rp->siop_dsp>>8),rp->siop_dsp); 1049 if (siopng_debug & 9) 1050 printf ("Phase mismatch: %x dsp +%lx dcmd %lx\n", 1051 rp->siop_sbcl, 1052 rp->siop_dsp - sc->sc_scriptspa, 1053 *((long *)&rp->siop_dcmd)); 1054 #endif 1055 if ((rp->siop_sbcl & SIOP_REQ) == 0) { 1056 printf ("Phase mismatch: REQ not asserted! %02x dsp %lx\n", 1057 rp->siop_sbcl, rp->siop_dsp); 1058 #if defined(DEBUG) && defined(DDB) 1059 Debugger(); 1060 #endif 1061 } 1062 switch (rp->siop_sbcl & 7) { 1063 case 0: /* data out */ 1064 case 1: /* data in */ 1065 case 2: /* status */ 1066 case 3: /* command */ 1067 case 6: /* message in */ 1068 case 7: /* message out */ 1069 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1070 break; 1071 default: 1072 goto bad_phase; 1073 } 1074 return 0; 1075 } 1076 if (sist & SIOP_SIST_STO) { /* Select timed out */ 1077 #ifdef DEBUG 1078 if (acb == NULL) 1079 printf("%s: Select timeout with no active command?\n", 1080 sc->sc_dev.dv_xname); 1081 if (rp->siop_sbcl & SIOP_BSY) { 1082 printf ("ACK! siop was busy at timeout: rp %p script %p dsa %p\n", 1083 rp, &scripts, &acb->ds); 1084 printf(" sbcl %x sdid %x istat %x dstat %x sist %x\n", 1085 rp->siop_sbcl, rp->siop_sdid, istat, dstat, sist); 1086 if (!(rp->siop_sbcl & SIOP_BSY)) { 1087 printf ("Yikes, it's not busy now!\n"); 1088 #if 0 1089 *status = -1; 1090 if (sc->nexus_list.tqh_first) 1091 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1092 return 1; 1093 #endif 1094 } 1095 /* rp->siop_dcntl |= SIOP_DCNTL_STD;*/ 1096 return (0); 1097 #ifdef DDB 1098 Debugger(); 1099 #endif 1100 } 1101 #endif 1102 *status = -1; 1103 acb->xs->error = XS_SELTIMEOUT; 1104 if (sc->nexus_list.tqh_first) 1105 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1106 return 1; 1107 } 1108 if (acb) 1109 target = acb->xs->sc_link->scsipi_scsi.target; 1110 else 1111 target = 7; 1112 if (sist & SIOP_SIST_UDC) { 1113 #ifdef DEBUG 1114 if (acb == NULL) 1115 printf("%s: Unexpected disconnect with no active command?\n", 1116 sc->sc_dev.dv_xname); 1117 printf ("%s: target %d disconnected unexpectedly\n", 1118 sc->sc_dev.dv_xname, target); 1119 siopng_dump_registers(sc); 1120 siopng_dump(sc); 1121 #endif 1122 #if 0 1123 siopngabort (sc, rp, "siopngchkintr"); 1124 #endif 1125 *status = STS_BUSY; 1126 if (sc->nexus_list.tqh_first) 1127 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1128 return (acb != NULL); 1129 } 1130 if (dstat & SIOP_DSTAT_SIR && (rp->siop_dsps == 0xff01 || 1131 rp->siop_dsps == 0xff02)) { 1132 #ifdef DEBUG 1133 if (siopng_debug & 0x100) 1134 printf ("%s: ID %02x disconnected TEMP %lx (+%lx) curbuf %lx curlen %lx buf %p len %lx dfifo %x dbc %x sstat1 %x starts %d acb %p\n", 1135 sc->sc_dev.dv_xname, 1 << target, rp->siop_temp, 1136 rp->siop_temp ? rp->siop_temp - sc->sc_scriptspa : 0, 1137 acb->iob_curbuf, acb->iob_curlen, 1138 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen, dfifo, dbc, sstat1, siopngstarts, acb); 1139 #endif 1140 if (acb == NULL) { 1141 printf("%s: Disconnect with no active command?\n", 1142 sc->sc_dev.dv_xname); 1143 return (0); 1144 } 1145 /* 1146 * XXXX need to update iob_curbuf/iob_curlen to reflect 1147 * current data transferred. If device disconnected in 1148 * the middle of a DMA block, they should already be set 1149 * by the phase change interrupt. If the disconnect 1150 * occurs on a DMA block boundary, we have to figure out 1151 * which DMA block it was. 1152 */ 1153 if (acb->iob_len && rp->siop_temp) { 1154 int n = rp->siop_temp - sc->sc_scriptspa; 1155 1156 if (acb->iob_curlen && acb->iob_curlen != acb->ds.chain[0].datalen) 1157 printf("%s: iob_curbuf/len already set? n %x iob %lx/%lx chain[0] %p/%lx\n", 1158 sc->sc_dev.dv_xname, n, acb->iob_curbuf, acb->iob_curlen, 1159 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen); 1160 if (n < Ent_datain) 1161 n = (n - Ent_dataout) / 16; 1162 else 1163 n = (n - Ent_datain) / 16; 1164 if (n <= 0 && n > DMAMAXIO) 1165 printf("TEMP invalid %d\n", n); 1166 else { 1167 acb->iob_curbuf = (u_long)acb->ds.chain[n].databuf; 1168 acb->iob_curlen = acb->ds.chain[n].datalen; 1169 } 1170 #ifdef DEBUG 1171 if (siopng_debug & 0x100) { 1172 printf("%s: TEMP offset %d", sc->sc_dev.dv_xname, n); 1173 printf(" curbuf %lx curlen %lx\n", acb->iob_curbuf, 1174 acb->iob_curlen); 1175 } 1176 #endif 1177 } 1178 /* 1179 * If data transfer was interrupted by disconnect, iob_curbuf 1180 * and iob_curlen should reflect the point of interruption. 1181 * Adjust the DMA chain so that the data transfer begins 1182 * at the appropriate place upon reselection. 1183 * XXX This should only be done on save data pointer message? 1184 */ 1185 if (acb->iob_curlen) { 1186 int i, j; 1187 1188 #ifdef DEBUG 1189 if (siopng_debug & 0x100) 1190 printf ("%s: adjusting DMA chain\n", 1191 sc->sc_dev.dv_xname); 1192 if (rp->siop_dsps == 0xff02) 1193 printf ("%s: ID %02x disconnected without Save Data Pointers\n", 1194 sc->sc_dev.dv_xname, 1 << target); 1195 #endif 1196 for (i = 0; i < DMAMAXIO; ++i) { 1197 if (acb->ds.chain[i].datalen == 0) 1198 break; 1199 if (acb->iob_curbuf >= (long)acb->ds.chain[i].databuf && 1200 acb->iob_curbuf < (long)(acb->ds.chain[i].databuf + 1201 acb->ds.chain[i].datalen)) 1202 break; 1203 } 1204 if (i >= DMAMAXIO || acb->ds.chain[i].datalen == 0) { 1205 printf("couldn't find saved data pointer: "); 1206 printf("curbuf %lx curlen %lx i %d\n", 1207 acb->iob_curbuf, acb->iob_curlen, i); 1208 #ifdef DDB 1209 Debugger(); 1210 #endif 1211 } 1212 #ifdef DEBUG 1213 if (siopng_debug & 0x100) 1214 printf(" chain[0]: %p/%lx -> %lx/%lx\n", 1215 acb->ds.chain[0].databuf, 1216 acb->ds.chain[0].datalen, 1217 acb->iob_curbuf, 1218 acb->iob_curlen); 1219 #endif 1220 acb->ds.chain[0].databuf = (char *)acb->iob_curbuf; 1221 acb->ds.chain[0].datalen = acb->iob_curlen; 1222 for (j = 1, ++i; i < DMAMAXIO && acb->ds.chain[i].datalen; ++i, ++j) { 1223 #ifdef DEBUG 1224 if (siopng_debug & 0x100) 1225 printf(" chain[%d]: %p/%lx -> %p/%lx\n", j, 1226 acb->ds.chain[j].databuf, 1227 acb->ds.chain[j].datalen, 1228 acb->ds.chain[i].databuf, 1229 acb->ds.chain[i].datalen); 1230 #endif 1231 acb->ds.chain[j].databuf = acb->ds.chain[i].databuf; 1232 acb->ds.chain[j].datalen = acb->ds.chain[i].datalen; 1233 } 1234 if (j < DMAMAXIO) 1235 acb->ds.chain[j].datalen = 0; 1236 DCIAS(kvtop((caddr_t)&acb->ds.chain)); 1237 } 1238 ++sc->sc_tinfo[target].dconns; 1239 /* 1240 * add nexus to waiting list 1241 * clear nexus 1242 * try to start another command for another target/lun 1243 */ 1244 acb->status = sc->sc_flags & SIOP_INTSOFF; 1245 TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain); 1246 sc->sc_nexus = NULL; /* no current device */ 1247 /* start script to wait for reselect */ 1248 if (sc->sc_nexus == NULL) 1249 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1250 /* XXXX start another command ? */ 1251 if (sc->ready_list.tqh_first) 1252 siopng_sched(sc); 1253 #if 0 1254 else 1255 rp->siop_dcntl |= SIOP_DCNTL_STD; 1256 #endif 1257 return (0); 1258 } 1259 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff03) { 1260 int reselid = rp->siop_scratcha & 0x7f; 1261 int reselun = rp->siop_sfbr & 0x07; 1262 1263 sc->sc_sstat1 = rp->siop_sbcl; /* XXXX save current SBCL */ 1264 #ifdef DEBUG 1265 if (siopng_debug & 0x100) 1266 printf ("%s: target ID %02x reselected dsps %lx\n", 1267 sc->sc_dev.dv_xname, reselid, 1268 rp->siop_dsps); 1269 if ((rp->siop_sfbr & 0x80) == 0) 1270 printf("%s: Reselect message in was not identify: %x\n", 1271 sc->sc_dev.dv_xname, rp->siop_sfbr); 1272 #endif 1273 if (sc->sc_nexus) { 1274 #ifdef DEBUG 1275 if (siopng_debug & 0x100) 1276 printf ("%s: reselect ID %02x w/active\n", 1277 sc->sc_dev.dv_xname, reselid); 1278 #endif 1279 TAILQ_INSERT_HEAD(&sc->ready_list, sc->sc_nexus, chain); 1280 sc->sc_tinfo[sc->sc_nexus->xs->sc_link->scsipi_scsi.target].lubusy 1281 &= ~(1 << sc->sc_nexus->xs->sc_link->scsipi_scsi.lun); 1282 --sc->sc_active; 1283 } 1284 /* 1285 * locate acb of reselecting device 1286 * set sc->sc_nexus to acb 1287 */ 1288 for (acb = sc->nexus_list.tqh_first; acb; 1289 acb = acb->chain.tqe_next) { 1290 if (reselid != ((acb->ds.scsi_addr >> 16) & 0xff) || 1291 reselun != (acb->msgout[0] & 0x07)) 1292 continue; 1293 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 1294 sc->sc_nexus = acb; 1295 sc->sc_flags |= acb->status; 1296 acb->status = 0; 1297 DCIAS(kvtop(&acb->stat[0])); 1298 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 1299 rp->siop_sxfer = 1300 sc->sc_sync[acb->xs->sc_link->scsipi_scsi.target].sxfer; 1301 #ifndef FIXME 1302 rp->siop_scntl3 = 1303 sc->sc_sync[acb->xs->sc_link->scsipi_scsi.target].sbcl; 1304 #endif 1305 break; 1306 } 1307 if (acb == NULL) { 1308 printf("%s: target ID %02x reselect nexus_list %p\n", 1309 sc->sc_dev.dv_xname, reselid, 1310 sc->nexus_list.tqh_first); 1311 panic("unable to find reselecting device"); 1312 } 1313 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1314 rp->siop_temp = 0; 1315 rp->siop_dcntl |= SIOP_DCNTL_STD; 1316 return (0); 1317 } 1318 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff04) { 1319 #ifdef DEBUG 1320 u_short ctest2 = rp->siop_ctest2; 1321 1322 /* reselect was interrupted (by Sig_P or select) */ 1323 if (siopng_debug & 0x100 || 1324 (ctest2 & SIOP_CTEST2_SIGP) == 0) 1325 printf ("%s: reselect interrupted (Sig_P?) scntl1 %x ctest2 %x sfbr %x istat %x/%x\n", 1326 sc->sc_dev.dv_xname, rp->siop_scntl1, 1327 ctest2, rp->siop_sfbr, istat, rp->siop_istat); 1328 #endif 1329 /* XXX assumes it was not select */ 1330 if (sc->sc_nexus == NULL) { 1331 #ifdef DEBUG 1332 printf("%s: reselect interrupted, sc_nexus == NULL\n", 1333 sc->sc_dev.dv_xname); 1334 #if 0 1335 siopng_dump(sc); 1336 #ifdef DDB 1337 Debugger(); 1338 #endif 1339 #endif 1340 #endif 1341 rp->siop_dcntl |= SIOP_DCNTL_STD; 1342 return(0); 1343 } 1344 target = sc->sc_nexus->xs->sc_link->scsipi_scsi.target; 1345 rp->siop_temp = 0; 1346 rp->siop_dsa = kvtop((caddr_t)&sc->sc_nexus->ds); 1347 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1348 #ifndef FIXME 1349 rp->siop_scntl3 = sc->sc_sync[target].sbcl; 1350 #endif 1351 rp->siop_dsp = sc->sc_scriptspa; 1352 return (0); 1353 } 1354 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff06) { 1355 if (acb == NULL) 1356 printf("%s: Bad message-in with no active command?\n", 1357 sc->sc_dev.dv_xname); 1358 /* Unrecognized message in byte */ 1359 dma_cachectl (&acb->msg[1],1); 1360 printf ("%s: Unrecognized message in data sfbr %x msg %x sbcl %x\n", 1361 sc->sc_dev.dv_xname, rp->siop_sfbr, acb->msg[1], rp->siop_sbcl); 1362 /* what should be done here? */ 1363 DCIAS(kvtop(&acb->msg[1])); 1364 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1365 return (0); 1366 } 1367 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0a) { 1368 /* Status phase wasn't followed by message in phase? */ 1369 printf ("%s: Status phase not followed by message in phase? sbcl %x sbdl %x\n", 1370 sc->sc_dev.dv_xname, rp->siop_sbcl, rp->siop_sbdl); 1371 if (rp->siop_sbcl == 0xa7) { 1372 /* It is now, just continue the script? */ 1373 rp->siop_dcntl |= SIOP_DCNTL_STD; 1374 return (0); 1375 } 1376 } 1377 if (sist == 0 && dstat & SIOP_DSTAT_SIR) { 1378 dma_cachectl (&acb->stat[0], 1); 1379 dma_cachectl (&acb->msg[0], 1); 1380 printf ("SIOP interrupt: %lx sts %x msg %x %x sbcl %x\n", 1381 rp->siop_dsps, acb->stat[0], acb->msg[0], acb->msg[1], 1382 rp->siop_sbcl); 1383 siopngreset (sc); 1384 *status = -1; 1385 return 0; /* siopngreset has cleaned up */ 1386 } 1387 if (sist & SIOP_SIST_SGE) 1388 printf ("SIOP: SCSI Gross Error\n"); 1389 if (sist & SIOP_SIST_PAR) 1390 printf ("SIOP: Parity Error\n"); 1391 if (dstat & SIOP_DSTAT_IID) 1392 printf ("SIOP: Invalid instruction detected\n"); 1393 bad_phase: 1394 /* 1395 * temporary panic for unhandled conditions 1396 * displays various things about the 53C720/770 status and registers 1397 * then panics. 1398 * XXXX need to clean this up to print out the info, reset, and continue 1399 */ 1400 printf ("siopngchkintr: target %x ds %p\n", target, &acb->ds); 1401 printf ("scripts %lx ds %x rp %x dsp %lx dcmd %lx\n", sc->sc_scriptspa, 1402 kvtop((caddr_t)&acb->ds), kvtop((caddr_t)rp), rp->siop_dsp, 1403 *((long *)&rp->siop_dcmd)); 1404 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %lx dsa %lx sbcl %x sts %x msg %x %x sfbr %x\n", 1405 istat, dstat, sist, rp->siop_dsps, rp->siop_dsa, 1406 rp->siop_sbcl, acb->stat[0], acb->msg[0], acb->msg[1], rp->siop_sfbr); 1407 #ifdef DEBUG 1408 if (siopng_debug & 0x20) 1409 panic("siopngchkintr: **** temp ****"); 1410 #endif 1411 #ifdef DDB 1412 Debugger (); 1413 #endif 1414 siopngreset (sc); /* hard reset */ 1415 *status = -1; 1416 return 0; /* siopngreset cleaned up */ 1417 } 1418 1419 void 1420 siopng_select(sc) 1421 struct siop_softc *sc; 1422 { 1423 siop_regmap_p rp; 1424 struct siop_acb *acb = sc->sc_nexus; 1425 1426 #ifdef DEBUG 1427 if (siopng_debug & 1) 1428 printf ("%s: select ", sc->sc_dev.dv_xname); 1429 #endif 1430 1431 rp = sc->sc_siopp; 1432 if (acb->xs->flags & SCSI_POLL || siopng_no_dma) { 1433 sc->sc_flags |= SIOP_INTSOFF; 1434 sc->sc_flags &= ~SIOP_INTDEFER; 1435 if ((rp->siop_istat & 0x08) == 0) { 1436 rp->siop_sien = 0; 1437 rp->siop_dien = 0; 1438 } 1439 #if 0 1440 } else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 1441 sc->sc_flags &= ~SIOP_INTSOFF; 1442 if ((rp->siop_istat & 0x08) == 0) { 1443 rp->siop_sien = sc->sc_sien; 1444 rp->siop_dien = sc->sc_dien; 1445 } 1446 #endif 1447 } 1448 #ifdef DEBUG 1449 if (siopng_debug & 1) 1450 printf ("siopng_select: target %x cmd %02x ds %p\n", 1451 acb->xs->sc_link->scsipi_scsi.target, acb->cmd.opcode, 1452 &sc->sc_nexus->ds); 1453 #endif 1454 1455 siopng_start(sc, acb->xs->sc_link->scsipi_scsi.target, 1456 acb->xs->sc_link->scsipi_scsi.lun, 1457 (u_char *)&acb->cmd, acb->clen, acb->daddr, acb->dleft); 1458 1459 return; 1460 } 1461 1462 /* 1463 * 53C720/770 interrupt handler 1464 */ 1465 1466 void 1467 siopngintr (sc) 1468 register struct siop_softc *sc; 1469 { 1470 siop_regmap_p rp; 1471 u_char istat, dstat; 1472 u_short sist; 1473 int status; 1474 int s = splbio(); 1475 1476 istat = sc->sc_istat; 1477 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 1478 splx(s); 1479 return; 1480 } 1481 1482 /* Got a valid interrupt on this device */ 1483 rp = sc->sc_siopp; 1484 dstat = sc->sc_dstat; 1485 sist = sc->sc_sist; 1486 if (dstat & SIOP_DSTAT_SIR) 1487 sc->sc_intcode = rp->siop_dsps; 1488 sc->sc_istat = 0; 1489 #ifdef DEBUG 1490 if (siopng_debug & 1) 1491 printf ("%s: intr istat %x dstat %x sist %x\n", 1492 sc->sc_dev.dv_xname, istat, dstat, sist); 1493 if (!sc->sc_active) { 1494 printf ("%s: spurious interrupt? istat %x dstat %x sist %x nexus %p status %x\n", 1495 sc->sc_dev.dv_xname, istat, dstat, sist, 1496 sc->sc_nexus, sc->sc_nexus ? sc->sc_nexus->stat[0] : 0); 1497 } 1498 #endif 1499 1500 #ifdef DEBUG 1501 if (siopng_debug & 5) { 1502 DCIAS(kvtop(&sc->sc_nexus->stat[0])); 1503 printf ("%s: intr istat %x dstat %x sist %x dsps %lx sbcl %x sts %x msg %x\n", 1504 sc->sc_dev.dv_xname, istat, dstat, sist, 1505 rp->siop_dsps, rp->siop_sbcl, 1506 sc->sc_nexus->stat[0], sc->sc_nexus->msg[0]); 1507 } 1508 #endif 1509 if (sc->sc_flags & SIOP_INTDEFER) { 1510 sc->sc_flags &= ~(SIOP_INTDEFER | SIOP_INTSOFF); 1511 rp->siop_sien = sc->sc_sien; 1512 rp->siop_dien = sc->sc_dien; 1513 } 1514 if (siopng_checkintr (sc, istat, dstat, sist, &status)) { 1515 #if 1 1516 if (status == 0xff) 1517 printf ("siopngintr: status == 0xff\n"); 1518 #endif 1519 if ((sc->sc_flags & (SIOP_INTSOFF | SIOP_INTDEFER)) != SIOP_INTSOFF) { 1520 #if 0 1521 if (rp->siop_sbcl & SIOP_BSY) { 1522 printf ("%s: SCSI bus busy at completion", 1523 sc->sc_dev.dv_xname); 1524 printf(" targ %d sbcl %02x sfbr %x respid %02x dsp +%x\n", 1525 sc->sc_nexus->xs->sc_link->scsipi_scsi.target, 1526 rp->siop_sbcl, rp->siop_sfbr, rp->siop_respid, 1527 rp->siop_dsp - sc->sc_scriptspa); 1528 } 1529 #endif 1530 siopng_scsidone(sc->sc_nexus, sc->sc_nexus ? 1531 sc->sc_nexus->stat[0] : -1); 1532 } 1533 } 1534 splx(s); 1535 } 1536 1537 /* 1538 * This is based on the Progressive Peripherals 33Mhz Zeus driver and will 1539 * not be correct for other 53c710 boards. 1540 * 1541 */ 1542 void 1543 scsi_period_to_siopng (sc, target) 1544 struct siop_softc *sc; 1545 int target; 1546 { 1547 int period, offset, sxfer, scntl3 = 0; 1548 #ifdef DEBUG_SYNC 1549 #ifdef FIXME 1550 int i; 1551 #endif 1552 #endif 1553 1554 period = sc->sc_nexus->msg[4]; 1555 offset = sc->sc_nexus->msg[5]; 1556 #ifdef FIXME 1557 #ifdef DEBUG_SYNC 1558 sxfer = 0; 1559 if (offset <= SIOP_MAX_OFFSET) 1560 sxfer = offset; 1561 else 1562 sxfer = SIOP_MAX_OFFSET; 1563 for (i = 0; i < sizeof (sync_tab) / 2; ++i) { 1564 if (period <= sync_tab[i].p) { 1565 sxfer |= sync_tab[i].r & 0x70; 1566 scntl3 = sync_tab[i].r & 0x03; 1567 break; 1568 } 1569 } 1570 printf ("siopng sync old: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1571 #endif /* DEBUG_SYNC */ 1572 for (scntl3 = 1; scntl3 < 4; ++scntl3) { 1573 sxfer = (period * 4 - 1) / sc->sc_tcp[scntl3] - 3; 1574 if (sxfer >= 0 && sxfer <= 7) 1575 break; 1576 } 1577 if (scntl3 > 3) { 1578 printf("siopng sync: unable to compute sync params for period %dns\n", 1579 period * 4); 1580 /* 1581 * XXX need to pick a value we can do and renegotiate 1582 */ 1583 sxfer = scntl3 = 0; 1584 } else { 1585 sxfer = (sxfer << 4) | ((offset <= SIOP_MAX_OFFSET) ? 1586 offset : SIOP_MAX_OFFSET); 1587 #ifdef DEBUG_SYNC 1588 printf("siopng sync: params for period %dns: sxfer %x scntl3 %x", 1589 period * 4, sxfer, scntl3); 1590 printf(" actual period %dns\n", 1591 sc->sc_tcp[scntl3] * ((sxfer >> 4) + 4)); 1592 #endif /* DEBUG_SYNC */ 1593 } 1594 #else /* FIXME */ 1595 sxfer = offset <= SIOP_MAX_OFFSET ? offset : SIOP_MAX_OFFSET; 1596 sxfer |= 0xc0; /* XXX */ 1597 #ifndef FIXME 1598 scntl3 = 0x15; 1599 #else 1600 scntl3 = 5; 1601 #endif 1602 #endif 1603 sc->sc_sync[target].sxfer = sxfer; 1604 sc->sc_sync[target].sbcl = scntl3; 1605 #ifdef DEBUG_SYNC 1606 printf ("siopng sync: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1607 #endif 1608 } 1609 1610 void 1611 siopng_dump_registers(sc) 1612 struct siop_softc *sc; 1613 { 1614 siop_regmap_p rp = sc->sc_siopp; 1615 1616 printf(" scntl0 %02x scntl1 %02x scntl2 %02x scntl3 %02x\n", 1617 rp->siop_scntl0, rp->siop_scntl1, rp->siop_scntl2, rp->siop_scntl3); 1618 printf(" scid %02x sxfer %02x sdid %02x gpreg %02x\n", 1619 rp->siop_scid, rp->siop_sxfer, rp->siop_sdid, rp->siop_gpreg); 1620 printf(" sfbr %02x socl %02x ssid %02x sbcl %02x\n", 1621 rp->siop_sfbr, rp->siop_socl, rp->siop_ssid, rp->siop_sbcl); 1622 printf(" dstat %02x sstat0 %02x sstat1 %02x sstat2 %02x\n", 1623 rp->siop_dstat, rp->siop_sstat0, rp->siop_sstat1, rp->siop_sstat2); 1624 printf(" ctest0 %02x ctest1 %02x ctest2 %02x ctest3 %02x\n", 1625 rp->siop_ctest0, rp->siop_ctest1, rp->siop_ctest2, rp->siop_ctest3); 1626 printf(" dfifo %02x ctest4 %02x ctest5 %02x ctest6 %02x\n", 1627 0, rp->siop_ctest4, rp->siop_ctest5, rp->siop_ctest6); 1628 printf(" dcmd %02x dbc2 %02x dbc1 %02x dbc0 %02x\n", 1629 rp->siop_dcmd, rp->siop_dbc2, rp->siop_dbc1, rp->siop_dbc0); 1630 printf(" dmode %02x dien %02x dwt %02x dcntl %02x\n", 1631 rp->siop_dmode, rp->siop_dien, rp->siop_dwt, rp->siop_dcntl); 1632 printf(" stest0 %02x stest1 %02x stest2 %02x stest3 %02x\n", 1633 rp->siop_stest0, rp->siop_stest1, rp->siop_stest2, rp->siop_stest3); 1634 printf(" istat %02x sien %04x sist %04x respid %04x\n", 1635 rp->siop_istat, rp->siop_sien, rp->siop_sist, rp->siop_respid); 1636 printf(" sidl %04x sodl %04x sbdl %04x\n", 1637 rp->siop_sidl, rp->siop_sodl, rp->siop_sbdl); 1638 printf(" dsps %08lx dsp %08lx (+%lx)\n", 1639 rp->siop_dsps, rp->siop_dsp, rp->siop_dsp > sc->sc_scriptspa ? 1640 rp->siop_dsp - sc->sc_scriptspa : 0); 1641 printf(" dsa %08lx temp %08lx dnad %08lx\n", 1642 rp->siop_dsa, rp->siop_temp, rp->siop_dnad); 1643 printf(" scratcha %08lx scratchb %08lx adder %08lx\n", 1644 rp->siop_scratcha, rp->siop_scratchb, rp->siop_adder); 1645 } 1646 1647 #ifdef DEBUG 1648 1649 #if SIOP_TRACE_SIZE 1650 void 1651 siopng_dump_trace() 1652 { 1653 int i; 1654 1655 printf("siopng trace: next index %d\n", siopng_trix); 1656 i = siopng_trix; 1657 do { 1658 printf("%3d: '%c' %02x %02x %02x\n", i, siopng_trbuf[i], 1659 siopng_trbuf[i + 1], siopng_trbuf[i + 2], siopng_trbuf[i + 3]); 1660 i = (i + 4) & (SIOP_TRACE_SIZE - 1); 1661 } while (i != siopng_trix); 1662 } 1663 #endif 1664 1665 void 1666 siopng_dump_acb(acb) 1667 struct siop_acb *acb; 1668 { 1669 u_char *b = (u_char *) &acb->cmd; 1670 int i; 1671 1672 printf("acb@%p ", acb); 1673 if (acb->xs == NULL) { 1674 printf("<unused>\n"); 1675 return; 1676 } 1677 printf("(%d:%d) flags %2x clen %2d cmd ", 1678 acb->xs->sc_link->scsipi_scsi.target, 1679 acb->xs->sc_link->scsipi_scsi.lun, acb->flags, acb->clen); 1680 for (i = acb->clen; i; --i) 1681 printf(" %02x", *b++); 1682 printf("\n"); 1683 printf(" xs: %p data %p:%04x ", acb->xs, acb->xs->data, 1684 acb->xs->datalen); 1685 printf("va %p:%lx ", acb->iob_buf, acb->iob_len); 1686 printf("cur %lx:%lx\n", acb->iob_curbuf, acb->iob_curlen); 1687 } 1688 1689 void 1690 siopng_dump(sc) 1691 struct siop_softc *sc; 1692 { 1693 struct siop_acb *acb; 1694 siop_regmap_p rp = sc->sc_siopp; 1695 int s; 1696 int i; 1697 1698 s = splbio(); 1699 #if SIOP_TRACE_SIZE 1700 siopng_dump_trace(); 1701 #endif 1702 printf("%s@%p regs %p istat %x\n", 1703 sc->sc_dev.dv_xname, sc, rp, rp->siop_istat); 1704 if ((acb = sc->free_list.tqh_first) > 0) { 1705 printf("Free list:\n"); 1706 while (acb) { 1707 siopng_dump_acb(acb); 1708 acb = acb->chain.tqe_next; 1709 } 1710 } 1711 if ((acb = sc->ready_list.tqh_first) > 0) { 1712 printf("Ready list:\n"); 1713 while (acb) { 1714 siopng_dump_acb(acb); 1715 acb = acb->chain.tqe_next; 1716 } 1717 } 1718 if ((acb = sc->nexus_list.tqh_first) > 0) { 1719 printf("Nexus list:\n"); 1720 while (acb) { 1721 siopng_dump_acb(acb); 1722 acb = acb->chain.tqe_next; 1723 } 1724 } 1725 if (sc->sc_nexus) { 1726 printf("Nexus:\n"); 1727 siopng_dump_acb(sc->sc_nexus); 1728 } 1729 for (i = 0; i < 8; ++i) { 1730 if (sc->sc_tinfo[i].cmds > 2) { 1731 printf("tgt %d: cmds %d disc %d senses %d lubusy %x\n", 1732 i, sc->sc_tinfo[i].cmds, 1733 sc->sc_tinfo[i].dconns, 1734 sc->sc_tinfo[i].senses, 1735 sc->sc_tinfo[i].lubusy); 1736 } 1737 } 1738 splx(s); 1739 } 1740 #endif 1741
Indexes created Thu Oct 02 14:10:14 GMT 2025