siop2.c revision 1.5
1 /* $NetBSD: siop2.c,v 1.5 1999/03/22 19:30:57 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 static char *siopng_chips[] = { 179 "720", "720SE", "770", "0x3", 180 "810A", "0x5", "0x6", "0x7", 181 "0x8", "0x9", "0xA", "0xB", 182 "0xC", "0xD", "0xE", "0xF", 183 }; 184 185 /* 186 * default minphys routine for siopng based controllers 187 */ 188 void 189 siopng_minphys(bp) 190 struct buf *bp; 191 { 192 193 /* 194 * No max transfer at this level. 195 */ 196 minphys(bp); 197 } 198 199 /* 200 * used by specific siopng controller 201 * 202 */ 203 int 204 siopng_scsicmd(xs) 205 struct scsipi_xfer *xs; 206 { 207 struct siop_acb *acb; 208 struct siop_softc *sc; 209 struct scsipi_link *slp; 210 int flags, s; 211 212 slp = xs->sc_link; 213 sc = slp->adapter_softc; 214 flags = xs->flags; 215 216 /* XXXX ?? */ 217 if (flags & SCSI_DATA_UIO) 218 panic("siopng: scsi data uio requested"); 219 220 /* XXXX ?? */ 221 if (sc->sc_nexus && flags & SCSI_POLL) 222 /* panic("siopng_scsicmd: busy");*/ 223 printf("siopng_scsicmd: busy\n"); 224 225 s = splbio(); 226 acb = sc->free_list.tqh_first; 227 if (acb) { 228 TAILQ_REMOVE(&sc->free_list, acb, chain); 229 } 230 splx(s); 231 232 if (acb == NULL) { 233 xs->error = XS_DRIVER_STUFFUP; 234 return(TRY_AGAIN_LATER); 235 } 236 237 acb->flags = ACB_ACTIVE; 238 acb->xs = xs; 239 bcopy(xs->cmd, &acb->cmd, xs->cmdlen); 240 acb->clen = xs->cmdlen; 241 acb->daddr = xs->data; 242 acb->dleft = xs->datalen; 243 244 s = splbio(); 245 TAILQ_INSERT_TAIL(&sc->ready_list, acb, chain); 246 247 if (sc->sc_nexus == NULL) 248 siopng_sched(sc); 249 250 splx(s); 251 252 if (flags & SCSI_POLL || siopng_no_dma) 253 return(siopng_poll(sc, acb)); 254 return(SUCCESSFULLY_QUEUED); 255 } 256 257 int 258 siopng_poll(sc, acb) 259 struct siop_softc *sc; 260 struct siop_acb *acb; 261 { 262 siop_regmap_p rp = sc->sc_siopp; 263 struct scsipi_xfer *xs = acb->xs; 264 int i; 265 int status; 266 u_char istat; 267 u_char dstat; 268 u_short sist; 269 int s; 270 int to; 271 272 s = splbio(); 273 to = xs->timeout / 1000; 274 if (sc->nexus_list.tqh_first) 275 printf("%s: siopng_poll called with disconnected device\n", 276 sc->sc_dev.dv_xname); 277 for (;;) { 278 /* use cmd_wait values? */ 279 i = 50000; 280 /* XXX spl0(); */ 281 while (((istat = rp->siop_istat) & 282 (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 283 if (--i <= 0) { 284 #ifdef DEBUG 285 printf ("waiting: tgt %d cmd %02x sbcl %02x istat %02x sbdl %04x\n dsp %lx (+%lx) dcmd %lx ds %p timeout %d\n", 286 xs->sc_link->scsipi_scsi.target, acb->cmd.opcode, 287 rp->siop_sbcl, istat, rp->siop_sbdl, rp->siop_dsp, 288 rp->siop_dsp - sc->sc_scriptspa, 289 *((long *)&rp->siop_dcmd), &acb->ds, acb->xs->timeout); 290 #endif 291 i = 50000; 292 --to; 293 if (to <= 0) { 294 siopngreset(sc); 295 return(COMPLETE); 296 } 297 } 298 delay(20); 299 } 300 sist = rp->siop_sist; 301 dstat = rp->siop_dstat; 302 if (siopng_checkintr(sc, istat, dstat, sist, &status)) { 303 if (acb != sc->sc_nexus) 304 printf("%s: siopng_poll disconnected device completed\n", 305 sc->sc_dev.dv_xname); 306 else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 307 sc->sc_flags &= ~SIOP_INTSOFF; 308 rp->siop_sien = sc->sc_sien; 309 rp->siop_dien = sc->sc_dien; 310 } 311 siopng_scsidone(sc->sc_nexus, status); 312 } 313 if (xs->flags & ITSDONE) 314 break; 315 } 316 splx(s); 317 return (COMPLETE); 318 } 319 320 /* 321 * start next command that's ready 322 */ 323 void 324 siopng_sched(sc) 325 struct siop_softc *sc; 326 { 327 struct scsipi_link *slp; 328 struct siop_acb *acb; 329 int i; 330 331 #ifdef DEBUG 332 if (sc->sc_nexus) { 333 printf("%s: siopng_sched- nexus %p/%d ready %p/%d\n", 334 sc->sc_dev.dv_xname, sc->sc_nexus, 335 sc->sc_nexus->xs->sc_link->scsipi_scsi.target, 336 sc->ready_list.tqh_first, 337 sc->ready_list.tqh_first->xs->sc_link->scsipi_scsi.target); 338 return; 339 } 340 #endif 341 for (acb = sc->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) { 342 slp = acb->xs->sc_link; 343 i = slp->scsipi_scsi.target; 344 if(!(sc->sc_tinfo[i].lubusy & (1 << slp->scsipi_scsi.lun))) { 345 struct siop_tinfo *ti = &sc->sc_tinfo[i]; 346 347 TAILQ_REMOVE(&sc->ready_list, acb, chain); 348 sc->sc_nexus = acb; 349 slp = acb->xs->sc_link; 350 ti = &sc->sc_tinfo[slp->scsipi_scsi.target]; 351 ti->lubusy |= (1 << slp->scsipi_scsi.lun); 352 break; 353 } 354 } 355 356 if (acb == NULL) { 357 #ifdef DEBUGXXX 358 printf("%s: siopng_sched didn't find ready command\n", 359 sc->sc_dev.dv_xname); 360 #endif 361 return; 362 } 363 364 if (acb->xs->flags & SCSI_RESET) 365 siopngreset(sc); 366 367 #if 0 368 acb->cmd.bytes[0] |= slp->scsipi_scsi.lun << 5; /* XXXX */ 369 #endif 370 ++sc->sc_active; 371 siopng_select(sc); 372 } 373 374 void 375 siopng_scsidone(acb, stat) 376 struct siop_acb *acb; 377 int stat; 378 { 379 struct scsipi_xfer *xs; 380 struct scsipi_link *slp; 381 struct siop_softc *sc; 382 int dosched = 0; 383 384 if (acb == NULL || (xs = acb->xs) == NULL) { 385 #ifdef DIAGNOSTIC 386 printf("siopng_scsidone: NULL acb or scsipi_xfer\n"); 387 #if defined(DEBUG) && defined(DDB) 388 Debugger(); 389 #endif 390 #endif 391 return; 392 } 393 slp = xs->sc_link; 394 sc = slp->adapter_softc; 395 /* 396 * is this right? 397 */ 398 xs->status = stat; 399 400 if (xs->error == XS_NOERROR && !(acb->flags & ACB_CHKSENSE)) { 401 if (stat == SCSI_CHECK) { 402 struct scsipi_sense *ss = (void *)&acb->cmd; 403 bzero(ss, sizeof(*ss)); 404 ss->opcode = REQUEST_SENSE; 405 ss->byte2 = slp->scsipi_scsi.lun << 5; 406 ss->length = sizeof(struct scsipi_sense_data); 407 acb->clen = sizeof(*ss); 408 acb->daddr = (char *)&xs->sense.scsi_sense; 409 acb->dleft = sizeof(struct scsipi_sense_data); 410 acb->flags = ACB_ACTIVE | ACB_CHKSENSE; 411 TAILQ_INSERT_HEAD(&sc->ready_list, acb, chain); 412 --sc->sc_active; 413 sc->sc_tinfo[slp->scsipi_scsi.target].lubusy &= 414 ~(1 << slp->scsipi_scsi.lun); 415 sc->sc_tinfo[slp->scsipi_scsi.target].senses++; 416 if (sc->sc_nexus == acb) { 417 sc->sc_nexus = NULL; 418 siopng_sched(sc); 419 } 420 SIOP_TRACE('d','s',0,0) 421 return; 422 } 423 } 424 if (xs->error == XS_NOERROR && (acb->flags & ACB_CHKSENSE)) { 425 xs->error = XS_SENSE; 426 } else { 427 xs->resid = 0; /* XXXX */ 428 } 429 #if whataboutthisone 430 case SCSI_BUSY: 431 xs->error = XS_BUSY; 432 break; 433 #endif 434 xs->flags |= ITSDONE; 435 436 /* 437 * Remove the ACB from whatever queue it's on. We have to do a bit of 438 * a hack to figure out which queue it's on. Note that it is *not* 439 * necessary to cdr down the ready queue, but we must cdr down the 440 * nexus queue and see if it's there, so we can mark the unit as no 441 * longer busy. This code is sickening, but it works. 442 */ 443 if (acb == sc->sc_nexus) { 444 sc->sc_nexus = NULL; 445 sc->sc_tinfo[slp->scsipi_scsi.target].lubusy &= 446 ~(1<<slp->scsipi_scsi.lun); 447 if (sc->ready_list.tqh_first) 448 dosched = 1; /* start next command */ 449 --sc->sc_active; 450 SIOP_TRACE('d','a',stat,0) 451 } else if (sc->ready_list.tqh_last == &acb->chain.tqe_next) { 452 TAILQ_REMOVE(&sc->ready_list, acb, chain); 453 SIOP_TRACE('d','r',stat,0) 454 } else { 455 register struct siop_acb *acb2; 456 for (acb2 = sc->nexus_list.tqh_first; acb2; 457 acb2 = acb2->chain.tqe_next) 458 if (acb2 == acb) { 459 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 460 sc->sc_tinfo[slp->scsipi_scsi.target].lubusy 461 &= ~(1<<slp->scsipi_scsi.lun); 462 --sc->sc_active; 463 break; 464 } 465 if (acb2) 466 ; 467 else if (acb->chain.tqe_next) { 468 TAILQ_REMOVE(&sc->ready_list, acb, chain); 469 --sc->sc_active; 470 } else { 471 printf("%s: can't find matching acb\n", 472 sc->sc_dev.dv_xname); 473 #ifdef DDB 474 /* Debugger(); */ 475 #endif 476 } 477 SIOP_TRACE('d','n',stat,0); 478 } 479 /* Put it on the free list. */ 480 acb->flags = ACB_FREE; 481 TAILQ_INSERT_HEAD(&sc->free_list, acb, chain); 482 483 sc->sc_tinfo[slp->scsipi_scsi.target].cmds++; 484 485 scsipi_done(xs); 486 487 if (dosched && sc->sc_nexus == NULL) 488 siopng_sched(sc); 489 } 490 491 void 492 siopngabort(sc, rp, where) 493 register struct siop_softc *sc; 494 siop_regmap_p rp; 495 char *where; 496 { 497 #ifdef fix_this 498 int i; 499 #endif 500 501 printf ("%s: abort %s: dstat %02x, istat %02x sist %04x sien %04x sbcl %02x\n", 502 sc->sc_dev.dv_xname, 503 where, rp->siop_dstat, rp->siop_istat, rp->siop_sist, 504 rp->siop_sien, rp->siop_sbcl); 505 siopng_dump_registers(sc); 506 507 if (sc->sc_active > 0) { 508 #ifdef TODO 509 SET_SBIC_cmd (rp, SBIC_CMD_ABORT); 510 WAIT_CIP (rp); 511 512 GET_SBIC_asr (rp, asr); 513 if (asr & (SBIC_ASR_BSY|SBIC_ASR_LCI)) 514 { 515 /* ok, get more drastic.. */ 516 517 SET_SBIC_cmd (rp, SBIC_CMD_RESET); 518 delay(25); 519 SBIC_WAIT(rp, SBIC_ASR_INT, 0); 520 GET_SBIC_csr (rp, csr); /* clears interrupt also */ 521 522 return; 523 } 524 525 do 526 { 527 SBIC_WAIT (rp, SBIC_ASR_INT, 0); 528 GET_SBIC_csr (rp, csr); 529 } 530 while ((csr != SBIC_CSR_DISC) && (csr != SBIC_CSR_DISC_1) 531 && (csr != SBIC_CSR_CMD_INVALID)); 532 #endif 533 534 /* lets just hope it worked.. */ 535 #ifdef fix_this 536 for (i = 0; i < 2; ++i) { 537 if (sc->sc_iob[i].sc_xs && &sc->sc_iob[i] != 538 sc->sc_cur) { 539 printf ("siopngabort: cleanup!\n"); 540 sc->sc_iob[i].sc_xs = NULL; 541 } 542 } 543 #endif /* fix_this */ 544 /* sc->sc_active = 0; */ 545 } 546 } 547 548 void 549 siopnginitialize(sc) 550 struct siop_softc *sc; 551 { 552 int i; 553 u_int inhibit_sync; 554 extern u_long scsi_nosync; 555 extern int shift_nosync; 556 557 /* 558 * Need to check that scripts is on a long word boundary 559 * Also should verify that dev doesn't span non-contiguous 560 * physical pages. 561 */ 562 sc->sc_scriptspa = kvtop((caddr_t)siopng_scripts); 563 564 /* 565 * malloc sc_acb to ensure that DS is on a long word boundary. 566 */ 567 568 MALLOC(sc->sc_acb, struct siop_acb *, 569 sizeof(struct siop_acb) * SIOP_NACB, M_DEVBUF, M_NOWAIT); 570 if (sc->sc_acb == NULL) 571 panic("siopnginitialize: ACB malloc failed!"); 572 573 sc->sc_tcp[1] = 1000 / sc->sc_clock_freq; 574 sc->sc_tcp[2] = 1500 / sc->sc_clock_freq; 575 sc->sc_tcp[3] = 2000 / sc->sc_clock_freq; 576 sc->sc_minsync = sc->sc_tcp[1]; /* in 4ns units */ 577 if (sc->sc_minsync < 25) 578 sc->sc_minsync = 25; 579 if (sc->sc_clock_freq <= 25) { 580 sc->sc_dcntl |= 0x80; /* SCLK/1 */ 581 sc->sc_tcp[0] = sc->sc_tcp[1]; 582 } else if (sc->sc_clock_freq <= 37) { 583 sc->sc_dcntl |= 0x40; /* SCLK/1.5 */ 584 sc->sc_tcp[0] = sc->sc_tcp[2]; 585 } else if (sc->sc_clock_freq <= 50) { 586 sc->sc_dcntl |= 0x00; /* SCLK/2 */ 587 sc->sc_tcp[0] = sc->sc_tcp[3]; 588 } else { 589 sc->sc_dcntl |= 0xc0; /* SCLK/3 */ 590 sc->sc_tcp[0] = 3000 / sc->sc_clock_freq; 591 } 592 593 if (scsi_nosync) { 594 inhibit_sync = (scsi_nosync >> shift_nosync) & 0xff; 595 shift_nosync += 8; 596 #ifdef DEBUG 597 if (inhibit_sync) 598 printf("%s: Inhibiting synchronous transfer %02x\n", 599 sc->sc_dev.dv_xname, inhibit_sync); 600 #endif 601 for (i = 0; i < 8; ++i) 602 if (inhibit_sync & (1 << i)) 603 siopng_inhibit_sync[i] = 1; 604 } 605 606 siopngreset (sc); 607 } 608 609 void 610 siopngreset(sc) 611 struct siop_softc *sc; 612 { 613 siop_regmap_p rp; 614 u_int i, s; 615 u_short dummy; 616 struct siop_acb *acb; 617 618 rp = sc->sc_siopp; 619 620 if (sc->sc_flags & SIOP_ALIVE) 621 siopngabort(sc, rp, "reset"); 622 623 printf("%s: ", sc->sc_dev.dv_xname); /* XXXX */ 624 625 s = splbio(); 626 627 /* 628 * Reset the chip 629 * XXX - is this really needed? 630 */ 631 rp->siop_istat |= SIOP_ISTAT_ABRT; /* abort current script */ 632 rp->siop_istat |= SIOP_ISTAT_RST; /* reset chip */ 633 rp->siop_istat &= ~SIOP_ISTAT_RST; 634 /* 635 * Reset SCSI bus (do we really want this?) 636 */ 637 rp->siop_sien = 0; 638 rp->siop_scntl1 |= SIOP_SCNTL1_RST; 639 delay(1); 640 rp->siop_scntl1 &= ~SIOP_SCNTL1_RST; 641 642 /* 643 * Set up various chip parameters 644 */ 645 rp->siop_stest1 |= 0x08; /* SCLK doubler enable */ 646 delay(20); 647 rp->siop_stest3 |= 0x20; /* Halt SCSI clock */ 648 rp->siop_scntl3 = 0x15; /* SCF/CCF*/ 649 rp->siop_stest1 |= 0x04; /* SCLK doubler select */ 650 rp->siop_stest3 &= ~0x20; /* Clear Halt SCSI clock */ 651 rp->siop_scntl0 = SIOP_ARB_FULL | /*SIOP_SCNTL0_EPC |*/ SIOP_SCNTL0_EPG; 652 rp->siop_dcntl = sc->sc_dcntl; 653 rp->siop_dmode = 0xc0; /* XXX burst length */ 654 rp->siop_sien = 0x00; /* don't enable interrupts yet */ 655 rp->siop_dien = 0x00; /* don't enable interrupts yet */ 656 rp->siop_scid = sc->sc_link.scsipi_scsi.adapter_target | 0x60; 657 rp->siop_respid = 1 << sc->sc_link.scsipi_scsi.adapter_target; 658 rp->siop_dwt = 0x00; 659 rp->siop_stime0 = 0x0c; /* XXXXX check */ 660 661 /* will need to re-negotiate sync xfers */ 662 bzero(&sc->sc_sync, sizeof (sc->sc_sync)); 663 664 i = rp->siop_istat; 665 if (i & SIOP_ISTAT_SIP) 666 dummy = rp->siop_sist; 667 if (i & SIOP_ISTAT_DIP) 668 dummy = rp->siop_dstat; 669 670 splx (s); 671 672 delay (siopng_reset_delay * 1000); 673 /* 674 * Check if upper half of SCSI bus is unterminated, and disallow 675 * disconnections if it appears to be unterminated. 676 */ 677 if ((rp->siop_sbdl & 0xff00) == 0xff00) { 678 printf(" NO WIDE TERM"); 679 for (i = 0; i < 16; ++i) 680 siopng_allow_disc[i] = 0; 681 } 682 683 printf("siopng type %s id %d reset V%d\n", 684 siopng_chips[rp->siop_macntl>>4], 685 sc->sc_link.scsipi_scsi.adapter_target, 686 rp->siop_ctest3 >> 4); 687 688 if ((sc->sc_flags & SIOP_ALIVE) == 0) { 689 TAILQ_INIT(&sc->ready_list); 690 TAILQ_INIT(&sc->nexus_list); 691 TAILQ_INIT(&sc->free_list); 692 sc->sc_nexus = NULL; 693 acb = sc->sc_acb; 694 bzero(acb, sizeof(struct siop_acb) * SIOP_NACB); 695 for (i = 0; i < SIOP_NACB; i++) { 696 TAILQ_INSERT_TAIL(&sc->free_list, acb, chain); 697 acb++; 698 } 699 bzero(sc->sc_tinfo, sizeof(sc->sc_tinfo)); 700 } else { 701 if (sc->sc_nexus != NULL) { 702 sc->sc_nexus->xs->error = XS_DRIVER_STUFFUP; 703 siopng_scsidone(sc->sc_nexus, sc->sc_nexus->stat[0]); 704 } 705 while ((acb = sc->nexus_list.tqh_first) > 0) { 706 acb->xs->error = XS_DRIVER_STUFFUP; 707 siopng_scsidone(acb, acb->stat[0]); 708 } 709 } 710 711 sc->sc_flags |= SIOP_ALIVE; 712 sc->sc_flags &= ~(SIOP_INTDEFER|SIOP_INTSOFF); 713 /* enable SCSI and DMA interrupts */ 714 sc->sc_sien = SIOP_SIEN_MA | SIOP_SIEN_STO | /*SIOP_SIEN_GEN |*/ 715 /*SIOP_SIEN_SEL |*/ SIOP_SIEN_SGE | SIOP_SIEN_UDC | 716 SIOP_SIEN_RST | SIOP_SIEN_PAR; 717 sc->sc_dien = SIOP_DIEN_BF | SIOP_DIEN_ABRT | SIOP_DIEN_SIR | 718 /*SIOP_DIEN_WTD |*/ SIOP_DIEN_IID; 719 rp->siop_sien = sc->sc_sien; 720 rp->siop_dien = sc->sc_dien; 721 siopng_dump_registers(sc); 722 } 723 724 /* 725 * Setup Data Storage for 53C720/770 and start SCRIPTS processing 726 */ 727 728 void 729 siopng_start (sc, target, lun, cbuf, clen, buf, len) 730 struct siop_softc *sc; 731 int target; 732 int lun; 733 u_char *cbuf; 734 int clen; 735 u_char *buf; 736 int len; 737 { 738 siop_regmap_p rp = sc->sc_siopp; 739 int nchain; 740 int count, tcount; 741 char *addr, *dmaend; 742 struct siop_acb *acb = sc->sc_nexus; 743 #ifdef DEBUG 744 int i; 745 #endif 746 747 #ifdef DEBUG 748 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 749 printf ("ACK! siopng was busy: rp %p script %p dsa %p active %ld\n", 750 rp, &siopng_scripts, &acb->ds, sc->sc_active); 751 printf ("istat %02x sfbr %02x respid %02x sien %04x dien %02x\n", 752 rp->siop_istat, rp->siop_sfbr, rp->siop_respid, 753 rp->siop_sien, rp->siop_dien); 754 #ifdef DDB 755 /*Debugger();*/ 756 #endif 757 } 758 #endif 759 acb->msgout[0] = MSG_IDENTIFY | lun; 760 if (siopng_allow_disc[target] & 2 || 761 (siopng_allow_disc[target] && len == 0)) 762 acb->msgout[0] = MSG_IDENTIFY_DR | lun; 763 acb->status = 0; 764 acb->stat[0] = -1; 765 acb->msg[0] = -1; 766 acb->ds.scsi_addr = (target << 16) | (sc->sc_sync[target].sxfer << 8) | 767 (sc->sc_sync[target].sbcl << 24); 768 acb->ds.idlen = 1; 769 acb->ds.idbuf = (char *) kvtop(&acb->msgout[0]); 770 acb->ds.cmdlen = clen; 771 acb->ds.cmdbuf = (char *) kvtop(cbuf); 772 acb->ds.stslen = 1; 773 acb->ds.stsbuf = (char *) kvtop(&acb->stat[0]); 774 acb->ds.msglen = 1; 775 acb->ds.msgbuf = (char *) kvtop(&acb->msg[0]); 776 acb->msg[1] = -1; 777 acb->ds.msginlen = 1; 778 acb->ds.extmsglen = 1; 779 acb->ds.synmsglen = 3; 780 acb->ds.msginbuf = (char *) kvtop(&acb->msg[1]); 781 acb->ds.extmsgbuf = (char *) kvtop(&acb->msg[2]); 782 acb->ds.synmsgbuf = (char *) kvtop(&acb->msg[3]); 783 bzero(&acb->ds.chain, sizeof (acb->ds.chain)); 784 785 if (sc->sc_sync[target].state == SYNC_START) { 786 if (siopng_inhibit_sync[target]) { 787 sc->sc_sync[target].state = SYNC_DONE; 788 sc->sc_sync[target].sbcl = 5; /* XXX */ 789 sc->sc_sync[target].sxfer = 0; 790 #ifdef DEBUG 791 if (siopngsync_debug) 792 printf ("Forcing target %d asynchronous\n", target); 793 #endif 794 } 795 else { 796 acb->msg[2] = -1; 797 acb->msgout[1] = MSG_EXT_MESSAGE; 798 acb->msgout[2] = 3; 799 acb->msgout[3] = MSG_SYNC_REQ; 800 #ifdef MAXTOR_SYNC_KLUDGE 801 acb->msgout[4] = 50 / 4; /* ask for ridiculous period */ 802 #else 803 acb->msgout[4] = sc->sc_minsync; 804 #endif 805 acb->msgout[5] = SIOP_MAX_OFFSET; 806 acb->ds.idlen = 6; 807 sc->sc_sync[target].state = SYNC_SENT; 808 #ifdef DEBUG 809 if (siopngsync_debug) 810 printf ("Sending sync request to target %d\n", target); 811 #endif 812 } 813 } 814 815 /* 816 * Build physical DMA addresses for scatter/gather I/O 817 */ 818 acb->iob_buf = buf; 819 acb->iob_len = len; 820 acb->iob_curbuf = acb->iob_curlen = 0; 821 nchain = 0; 822 count = len; 823 addr = buf; 824 dmaend = NULL; 825 while (count > 0) { 826 acb->ds.chain[nchain].databuf = (char *) kvtop (addr); 827 if (count < (tcount = NBPG - ((int) addr & PGOFSET))) 828 tcount = count; 829 830 #if DEBUG_ONLY_IF_DESPERATE 831 printf("chain[%d]: count %d tcount %d vaddr %p paddr %p\n", 832 nchain, count, tcount, addr, 833 acb->ds.chain[nchain].databuf); 834 #endif 835 acb->ds.chain[nchain].datalen = tcount; 836 addr += tcount; 837 count -= tcount; 838 if (acb->ds.chain[nchain].databuf == dmaend) { 839 dmaend += acb->ds.chain[nchain].datalen; 840 acb->ds.chain[nchain].datalen = 0; 841 acb->ds.chain[--nchain].datalen += tcount; 842 #ifdef DEBUG 843 ++siopngdma_hits; 844 #endif 845 } 846 else { 847 dmaend = acb->ds.chain[nchain].databuf + 848 acb->ds.chain[nchain].datalen; 849 acb->ds.chain[nchain].datalen = tcount; 850 #ifdef DEBUG 851 if (nchain) /* Don't count miss on first one */ 852 ++siopngdma_misses; 853 #endif 854 } 855 ++nchain; 856 } 857 #ifdef DEBUG 858 if (nchain != 1 && len != 0 && siopng_debug & 3) { 859 printf ("DMA chaining set: %d\n", nchain); 860 for (i = 0; i < nchain; ++i) { 861 printf (" [%d] %8p %lx\n", i, acb->ds.chain[i].databuf, 862 acb->ds.chain[i].datalen); 863 } 864 } 865 #endif 866 867 /* push data cache for all data the 53c720/770 needs to access */ 868 dma_cachectl ((caddr_t)acb, sizeof (struct siop_acb)); 869 dma_cachectl (cbuf, clen); 870 if (buf != NULL && len != 0) 871 dma_cachectl (buf, len); 872 #ifdef DEBUG 873 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 874 printf ("ACK! siopng was busy at start: rp %p script %p dsa %p active %ld\n", 875 rp, &siopng_scripts, &acb->ds, sc->sc_active); 876 #ifdef DDB 877 /*Debugger();*/ 878 #endif 879 } 880 #endif 881 if (sc->nexus_list.tqh_first == NULL) { 882 if (rp->siop_istat & SIOP_ISTAT_CON) 883 printf("%s: siopng_select while connected?\n", 884 sc->sc_dev.dv_xname); 885 rp->siop_temp = 0; 886 #ifndef FIXME 887 rp->siop_scntl3 = sc->sc_sync[target].sbcl; 888 #endif 889 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 890 rp->siop_dsp = sc->sc_scriptspa; 891 SIOP_TRACE('s',1,0,0) 892 } else { 893 if ((rp->siop_istat & SIOP_ISTAT_CON) == 0) { 894 rp->siop_istat = SIOP_ISTAT_SIGP; 895 SIOP_TRACE('s',2,0,0); 896 } 897 else { 898 SIOP_TRACE('s',3,rp->siop_istat,0); 899 } 900 } 901 #ifdef DEBUG 902 ++siopngstarts; 903 #endif 904 } 905 906 /* 907 * Process a DMA or SCSI interrupt from the 53C720/770 SIOP 908 */ 909 910 int 911 siopng_checkintr(sc, istat, dstat, sist, status) 912 struct siop_softc *sc; 913 u_char istat; 914 u_char dstat; 915 u_short sist; 916 int *status; 917 { 918 siop_regmap_p rp = sc->sc_siopp; 919 struct siop_acb *acb = sc->sc_nexus; 920 int target = 0; 921 int dfifo, dbc, sstat0, sstat1, sstat2; 922 923 dfifo = rp->siop_dfifo; 924 dbc = rp->siop_dbc0; 925 sstat0 = rp->siop_sstat0; 926 sstat1 = rp->siop_sstat1; 927 sstat2 = rp->siop_sstat2; 928 rp->siop_ctest3 |= SIOP_CTEST8_CLF; 929 while ((rp->siop_ctest1 & SIOP_CTEST1_FMT) != SIOP_CTEST1_FMT) 930 ; 931 rp->siop_ctest3 &= ~SIOP_CTEST8_CLF; 932 #ifdef DEBUG 933 ++siopngints; 934 #if 0 935 if (siopng_debug & 0x100) { 936 DCIAS(&acb->stat[0]); /* XXX */ 937 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %x sbcl %x sts %x msg %x\n", 938 istat, dstat, sist, rp->siop_dsps, rp->siop_sbcl, acb->stat[0], acb->msg[0]); 939 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 940 acb->msg[0], acb->msg[1], acb->msg[2], 941 acb->msg[3], acb->msg[4], acb->msg[5]); 942 } 943 #endif 944 if (rp->siop_dsp && (rp->siop_dsp < sc->sc_scriptspa || 945 rp->siop_dsp >= sc->sc_scriptspa + sizeof(siopng_scripts))) { 946 printf ("%s: dsp not within script dsp %lx scripts %lx:%lx", 947 sc->sc_dev.dv_xname, rp->siop_dsp, sc->sc_scriptspa, 948 sc->sc_scriptspa + sizeof(siopng_scripts)); 949 printf(" istat %x dstat %x sist %x\n", 950 istat, dstat, sist); 951 #ifdef DDB 952 Debugger(); 953 #endif 954 } 955 #endif 956 SIOP_TRACE('i',dstat,istat,(istat&SIOP_ISTAT_DIP)?rp->siop_dsps&0xff:sist); 957 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff00) { 958 /* Normal completion status, or check condition */ 959 #ifdef DEBUG 960 if (rp->siop_dsa != kvtop((caddr_t)&acb->ds)) { 961 printf ("siopng: invalid dsa: %lx %x\n", rp->siop_dsa, 962 kvtop((caddr_t)&acb->ds)); 963 panic("*** siopng DSA invalid ***"); 964 } 965 #endif 966 target = acb->xs->sc_link->scsipi_scsi.target; 967 if (sc->sc_sync[target].state == SYNC_SENT) { 968 #ifdef DEBUG 969 if (siopngsync_debug) 970 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 971 acb->msg[0], acb->msg[1], acb->msg[2], 972 acb->msg[3], acb->msg[4], acb->msg[5]); 973 #endif 974 if (acb->msg[1] == 0xff) 975 printf ("%s: target %d ignored sync request\n", 976 sc->sc_dev.dv_xname, target); 977 else if (acb->msg[1] == MSG_REJECT) 978 printf ("%s: target %d rejected sync request\n", 979 sc->sc_dev.dv_xname, target); 980 sc->sc_sync[target].state = SYNC_DONE; 981 sc->sc_sync[target].sxfer = 0; 982 sc->sc_sync[target].sbcl = 5; /* XXX */ 983 if (acb->msg[2] == 3 && 984 acb->msg[3] == MSG_SYNC_REQ && 985 acb->msg[5] != 0) { 986 #ifdef MAXTOR_KLUDGE 987 /* 988 * Kludge for my Maxtor XT8580S 989 * It accepts whatever we request, even 990 * though it won't work. So we ask for 991 * a short period than we can handle. If 992 * the device says it can do it, use 208ns. 993 * If the device says it can do less than 994 * 100ns, then we limit it to 100ns. 995 */ 996 if (acb->msg[4] && acb->msg[4] < 100 / 4) { 997 #ifdef DEBUG 998 printf ("%d: target %d wanted %dns period\n", 999 sc->sc_dev.dv_xname, target, 1000 acb->msg[4] * 4); 1001 #endif 1002 if (acb->msg[4] == 50 / 4) 1003 acb->msg[4] = 208 / 4; 1004 else 1005 acb->msg[4] = 100 / 4; 1006 } 1007 #endif /* MAXTOR_KLUDGE */ 1008 printf ("%s: target %d now synchronous, period=%dns, offset=%d\n", 1009 sc->sc_dev.dv_xname, target, 1010 acb->msg[4] * 4, acb->msg[5]); 1011 scsi_period_to_siopng (sc, target); 1012 } 1013 } 1014 dma_cachectl(&acb->stat[0], 1); 1015 *status = acb->stat[0]; 1016 #ifdef DEBUG 1017 if (rp->siop_sbcl & SIOP_BSY) { 1018 /*printf ("ACK! siop was busy at end: rp %x script %x dsa %x\n", 1019 rp, &siopng_scripts, &acb->ds);*/ 1020 #ifdef DDB 1021 /*Debugger();*/ 1022 #endif 1023 } 1024 if (acb->msg[0] != 0x00) 1025 printf("%s: message was not COMMAND COMPLETE: %x\n", 1026 sc->sc_dev.dv_xname, acb->msg[0]); 1027 #endif 1028 if (sc->nexus_list.tqh_first) 1029 rp->siop_dcntl |= SIOP_DCNTL_STD; 1030 return 1; 1031 } 1032 if (sist & SIOP_SIST_MA) { /* Phase mismatch */ 1033 #ifdef DEBUG 1034 ++siopngphmm; 1035 if (acb == NULL) 1036 printf("%s: Phase mismatch with no active command?\n", 1037 sc->sc_dev.dv_xname); 1038 #endif 1039 if (acb->iob_len) { 1040 int adjust; 1041 adjust = ((dfifo - (dbc & 0x7f)) & 0x7f); 1042 if (sstat0 & (1<<5)) /* sstat0 SODL lsb */ 1043 ++adjust; 1044 if (sstat0 & (1<<6)) /* sstat0 SODR lsb */ 1045 ++adjust; 1046 if (sstat2 & (1<<5)) /* sstat2 SODL msb */ 1047 ++adjust; 1048 if (sstat2 & (1<<6)) /* sstat2 SODR msb */ 1049 ++adjust; 1050 acb->iob_curlen = *((long *)&rp->siop_dcmd) & 0xffffff; 1051 acb->iob_curlen += adjust; 1052 acb->iob_curbuf = *((long *)&rp->siop_dnad) - adjust; 1053 #ifdef DEBUG 1054 if (siopng_debug & 0x100) { 1055 int i; 1056 printf ("Phase mismatch: curbuf %lx curlen %lx dfifo %x dbc %x sstat1 %x adjust %x sbcl %x starts %d acb %p\n", 1057 acb->iob_curbuf, acb->iob_curlen, dfifo, 1058 dbc, sstat1, adjust, rp->siop_sbcl, siopngstarts, acb); 1059 if (acb->ds.chain[1].datalen) { 1060 for (i = 0; acb->ds.chain[i].datalen; ++i) 1061 printf("chain[%d] addr %p len %lx\n", 1062 i, acb->ds.chain[i].databuf, 1063 acb->ds.chain[i].datalen); 1064 } 1065 } 1066 #endif 1067 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1068 } 1069 #ifdef DEBUG 1070 SIOP_TRACE('m',rp->siop_sbcl,(rp->siop_dsp>>8),rp->siop_dsp); 1071 if (siopng_debug & 9) 1072 printf ("Phase mismatch: %x dsp +%lx dcmd %lx\n", 1073 rp->siop_sbcl, 1074 rp->siop_dsp - sc->sc_scriptspa, 1075 *((long *)&rp->siop_dcmd)); 1076 #endif 1077 if ((rp->siop_sbcl & SIOP_REQ) == 0) { 1078 printf ("Phase mismatch: REQ not asserted! %02x dsp %lx\n", 1079 rp->siop_sbcl, rp->siop_dsp); 1080 #if defined(DEBUG) && defined(DDB) 1081 Debugger(); 1082 #endif 1083 } 1084 switch (rp->siop_sbcl & 7) { 1085 case 0: /* data out */ 1086 case 1: /* data in */ 1087 case 2: /* status */ 1088 case 3: /* command */ 1089 case 6: /* message in */ 1090 case 7: /* message out */ 1091 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1092 break; 1093 default: 1094 goto bad_phase; 1095 } 1096 return 0; 1097 } 1098 if (sist & SIOP_SIST_STO) { /* Select timed out */ 1099 #ifdef DEBUG 1100 if (acb == NULL) 1101 printf("%s: Select timeout with no active command?\n", 1102 sc->sc_dev.dv_xname); 1103 if (rp->siop_sbcl & SIOP_BSY) { 1104 printf ("ACK! siop was busy at timeout: rp %p script %p dsa %p\n", 1105 rp, &siopng_scripts, &acb->ds); 1106 printf(" sbcl %x sdid %x istat %x dstat %x sist %x\n", 1107 rp->siop_sbcl, rp->siop_sdid, istat, dstat, sist); 1108 if (!(rp->siop_sbcl & SIOP_BSY)) { 1109 printf ("Yikes, it's not busy now!\n"); 1110 #if 0 1111 *status = -1; 1112 if (sc->nexus_list.tqh_first) 1113 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1114 return 1; 1115 #endif 1116 } 1117 /* rp->siop_dcntl |= SIOP_DCNTL_STD;*/ 1118 return (0); 1119 #ifdef DDB 1120 Debugger(); 1121 #endif 1122 } 1123 #endif 1124 *status = -1; 1125 acb->xs->error = XS_SELTIMEOUT; 1126 if (sc->nexus_list.tqh_first) 1127 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1128 return 1; 1129 } 1130 if (acb) 1131 target = acb->xs->sc_link->scsipi_scsi.target; 1132 else 1133 target = 7; 1134 if (sist & SIOP_SIST_UDC) { 1135 #ifdef DEBUG 1136 if (acb == NULL) 1137 printf("%s: Unexpected disconnect with no active command?\n", 1138 sc->sc_dev.dv_xname); 1139 printf ("%s: target %d disconnected unexpectedly\n", 1140 sc->sc_dev.dv_xname, target); 1141 siopng_dump_registers(sc); 1142 siopng_dump(sc); 1143 #endif 1144 #if 0 1145 siopngabort (sc, rp, "siopngchkintr"); 1146 #endif 1147 *status = STS_BUSY; 1148 if (sc->nexus_list.tqh_first) 1149 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1150 return (acb != NULL); 1151 } 1152 if (dstat & SIOP_DSTAT_SIR && (rp->siop_dsps == 0xff01 || 1153 rp->siop_dsps == 0xff02)) { 1154 #ifdef DEBUG 1155 if (siopng_debug & 0x100) 1156 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", 1157 sc->sc_dev.dv_xname, 1 << target, rp->siop_temp, 1158 rp->siop_temp ? rp->siop_temp - sc->sc_scriptspa : 0, 1159 acb->iob_curbuf, acb->iob_curlen, 1160 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen, dfifo, dbc, sstat1, siopngstarts, acb); 1161 #endif 1162 if (acb == NULL) { 1163 printf("%s: Disconnect with no active command?\n", 1164 sc->sc_dev.dv_xname); 1165 return (0); 1166 } 1167 /* 1168 * XXXX need to update iob_curbuf/iob_curlen to reflect 1169 * current data transferred. If device disconnected in 1170 * the middle of a DMA block, they should already be set 1171 * by the phase change interrupt. If the disconnect 1172 * occurs on a DMA block boundary, we have to figure out 1173 * which DMA block it was. 1174 */ 1175 if (acb->iob_len && rp->siop_temp) { 1176 int n = rp->siop_temp - sc->sc_scriptspa; 1177 1178 if (acb->iob_curlen && acb->iob_curlen != acb->ds.chain[0].datalen) 1179 printf("%s: iob_curbuf/len already set? n %x iob %lx/%lx chain[0] %p/%lx\n", 1180 sc->sc_dev.dv_xname, n, acb->iob_curbuf, acb->iob_curlen, 1181 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen); 1182 if (n < Ent_datain) 1183 n = (n - Ent_dataout) / 16; 1184 else 1185 n = (n - Ent_datain) / 16; 1186 if (n <= 0 && n > DMAMAXIO) 1187 printf("TEMP invalid %d\n", n); 1188 else { 1189 acb->iob_curbuf = (u_long)acb->ds.chain[n].databuf; 1190 acb->iob_curlen = acb->ds.chain[n].datalen; 1191 } 1192 #ifdef DEBUG 1193 if (siopng_debug & 0x100) { 1194 printf("%s: TEMP offset %d", sc->sc_dev.dv_xname, n); 1195 printf(" curbuf %lx curlen %lx\n", acb->iob_curbuf, 1196 acb->iob_curlen); 1197 } 1198 #endif 1199 } 1200 /* 1201 * If data transfer was interrupted by disconnect, iob_curbuf 1202 * and iob_curlen should reflect the point of interruption. 1203 * Adjust the DMA chain so that the data transfer begins 1204 * at the appropriate place upon reselection. 1205 * XXX This should only be done on save data pointer message? 1206 */ 1207 if (acb->iob_curlen) { 1208 int i, j; 1209 1210 #ifdef DEBUG 1211 if (siopng_debug & 0x100) 1212 printf ("%s: adjusting DMA chain\n", 1213 sc->sc_dev.dv_xname); 1214 if (rp->siop_dsps == 0xff02) 1215 printf ("%s: ID %02x disconnected without Save Data Pointers\n", 1216 sc->sc_dev.dv_xname, 1 << target); 1217 #endif 1218 for (i = 0; i < DMAMAXIO; ++i) { 1219 if (acb->ds.chain[i].datalen == 0) 1220 break; 1221 if (acb->iob_curbuf >= (long)acb->ds.chain[i].databuf && 1222 acb->iob_curbuf < (long)(acb->ds.chain[i].databuf + 1223 acb->ds.chain[i].datalen)) 1224 break; 1225 } 1226 if (i >= DMAMAXIO || acb->ds.chain[i].datalen == 0) { 1227 printf("couldn't find saved data pointer: "); 1228 printf("curbuf %lx curlen %lx i %d\n", 1229 acb->iob_curbuf, acb->iob_curlen, i); 1230 #ifdef DDB 1231 Debugger(); 1232 #endif 1233 } 1234 #ifdef DEBUG 1235 if (siopng_debug & 0x100) 1236 printf(" chain[0]: %p/%lx -> %lx/%lx\n", 1237 acb->ds.chain[0].databuf, 1238 acb->ds.chain[0].datalen, 1239 acb->iob_curbuf, 1240 acb->iob_curlen); 1241 #endif 1242 acb->ds.chain[0].databuf = (char *)acb->iob_curbuf; 1243 acb->ds.chain[0].datalen = acb->iob_curlen; 1244 for (j = 1, ++i; i < DMAMAXIO && acb->ds.chain[i].datalen; ++i, ++j) { 1245 #ifdef DEBUG 1246 if (siopng_debug & 0x100) 1247 printf(" chain[%d]: %p/%lx -> %p/%lx\n", j, 1248 acb->ds.chain[j].databuf, 1249 acb->ds.chain[j].datalen, 1250 acb->ds.chain[i].databuf, 1251 acb->ds.chain[i].datalen); 1252 #endif 1253 acb->ds.chain[j].databuf = acb->ds.chain[i].databuf; 1254 acb->ds.chain[j].datalen = acb->ds.chain[i].datalen; 1255 } 1256 if (j < DMAMAXIO) 1257 acb->ds.chain[j].datalen = 0; 1258 DCIAS(kvtop((caddr_t)&acb->ds.chain)); 1259 } 1260 ++sc->sc_tinfo[target].dconns; 1261 /* 1262 * add nexus to waiting list 1263 * clear nexus 1264 * try to start another command for another target/lun 1265 */ 1266 acb->status = sc->sc_flags & SIOP_INTSOFF; 1267 TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain); 1268 sc->sc_nexus = NULL; /* no current device */ 1269 /* start script to wait for reselect */ 1270 if (sc->sc_nexus == NULL) 1271 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1272 /* XXXX start another command ? */ 1273 if (sc->ready_list.tqh_first) 1274 siopng_sched(sc); 1275 #if 0 1276 else 1277 rp->siop_dcntl |= SIOP_DCNTL_STD; 1278 #endif 1279 return (0); 1280 } 1281 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff03) { 1282 int reselid = rp->siop_scratcha & 0x7f; 1283 int reselun = rp->siop_sfbr & 0x07; 1284 1285 sc->sc_sstat1 = rp->siop_sbcl; /* XXXX save current SBCL */ 1286 #ifdef DEBUG 1287 if (siopng_debug & 0x100) 1288 printf ("%s: target ID %02x reselected dsps %lx\n", 1289 sc->sc_dev.dv_xname, reselid, 1290 rp->siop_dsps); 1291 if ((rp->siop_sfbr & 0x80) == 0) 1292 printf("%s: Reselect message in was not identify: %x\n", 1293 sc->sc_dev.dv_xname, rp->siop_sfbr); 1294 #endif 1295 if (sc->sc_nexus) { 1296 #ifdef DEBUG 1297 if (siopng_debug & 0x100) 1298 printf ("%s: reselect ID %02x w/active\n", 1299 sc->sc_dev.dv_xname, reselid); 1300 #endif 1301 TAILQ_INSERT_HEAD(&sc->ready_list, sc->sc_nexus, chain); 1302 sc->sc_tinfo[sc->sc_nexus->xs->sc_link->scsipi_scsi.target].lubusy 1303 &= ~(1 << sc->sc_nexus->xs->sc_link->scsipi_scsi.lun); 1304 --sc->sc_active; 1305 } 1306 /* 1307 * locate acb of reselecting device 1308 * set sc->sc_nexus to acb 1309 */ 1310 for (acb = sc->nexus_list.tqh_first; acb; 1311 acb = acb->chain.tqe_next) { 1312 if (reselid != ((acb->ds.scsi_addr >> 16) & 0xff) || 1313 reselun != (acb->msgout[0] & 0x07)) 1314 continue; 1315 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 1316 sc->sc_nexus = acb; 1317 sc->sc_flags |= acb->status; 1318 acb->status = 0; 1319 DCIAS(kvtop(&acb->stat[0])); 1320 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 1321 rp->siop_sxfer = 1322 sc->sc_sync[acb->xs->sc_link->scsipi_scsi.target].sxfer; 1323 #ifndef FIXME 1324 rp->siop_scntl3 = 1325 sc->sc_sync[acb->xs->sc_link->scsipi_scsi.target].sbcl; 1326 #endif 1327 break; 1328 } 1329 if (acb == NULL) { 1330 printf("%s: target ID %02x reselect nexus_list %p\n", 1331 sc->sc_dev.dv_xname, reselid, 1332 sc->nexus_list.tqh_first); 1333 panic("unable to find reselecting device"); 1334 } 1335 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1336 rp->siop_temp = 0; 1337 rp->siop_dcntl |= SIOP_DCNTL_STD; 1338 return (0); 1339 } 1340 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff04) { 1341 #ifdef DEBUG 1342 u_short ctest2 = rp->siop_ctest2; 1343 1344 /* reselect was interrupted (by Sig_P or select) */ 1345 if (siopng_debug & 0x100 || 1346 (ctest2 & SIOP_CTEST2_SIGP) == 0) 1347 printf ("%s: reselect interrupted (Sig_P?) scntl1 %x ctest2 %x sfbr %x istat %x/%x\n", 1348 sc->sc_dev.dv_xname, rp->siop_scntl1, 1349 ctest2, rp->siop_sfbr, istat, rp->siop_istat); 1350 #endif 1351 /* XXX assumes it was not select */ 1352 if (sc->sc_nexus == NULL) { 1353 #ifdef DEBUG 1354 printf("%s: reselect interrupted, sc_nexus == NULL\n", 1355 sc->sc_dev.dv_xname); 1356 #if 0 1357 siopng_dump(sc); 1358 #ifdef DDB 1359 Debugger(); 1360 #endif 1361 #endif 1362 #endif 1363 rp->siop_dcntl |= SIOP_DCNTL_STD; 1364 return(0); 1365 } 1366 target = sc->sc_nexus->xs->sc_link->scsipi_scsi.target; 1367 rp->siop_temp = 0; 1368 rp->siop_dsa = kvtop((caddr_t)&sc->sc_nexus->ds); 1369 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1370 #ifndef FIXME 1371 rp->siop_scntl3 = sc->sc_sync[target].sbcl; 1372 #endif 1373 rp->siop_dsp = sc->sc_scriptspa; 1374 return (0); 1375 } 1376 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff06) { 1377 if (acb == NULL) 1378 printf("%s: Bad message-in with no active command?\n", 1379 sc->sc_dev.dv_xname); 1380 /* Unrecognized message in byte */ 1381 dma_cachectl (&acb->msg[1],1); 1382 printf ("%s: Unrecognized message in data sfbr %x msg %x sbcl %x\n", 1383 sc->sc_dev.dv_xname, rp->siop_sfbr, acb->msg[1], rp->siop_sbcl); 1384 /* what should be done here? */ 1385 DCIAS(kvtop(&acb->msg[1])); 1386 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1387 return (0); 1388 } 1389 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0a) { 1390 /* Status phase wasn't followed by message in phase? */ 1391 printf ("%s: Status phase not followed by message in phase? sbcl %x sbdl %x\n", 1392 sc->sc_dev.dv_xname, rp->siop_sbcl, rp->siop_sbdl); 1393 if (rp->siop_sbcl == 0xa7) { 1394 /* It is now, just continue the script? */ 1395 rp->siop_dcntl |= SIOP_DCNTL_STD; 1396 return (0); 1397 } 1398 } 1399 if (sist == 0 && dstat & SIOP_DSTAT_SIR) { 1400 dma_cachectl (&acb->stat[0], 1); 1401 dma_cachectl (&acb->msg[0], 1); 1402 printf ("SIOP interrupt: %lx sts %x msg %x %x sbcl %x\n", 1403 rp->siop_dsps, acb->stat[0], acb->msg[0], acb->msg[1], 1404 rp->siop_sbcl); 1405 siopngreset (sc); 1406 *status = -1; 1407 return 0; /* siopngreset has cleaned up */ 1408 } 1409 if (sist & SIOP_SIST_SGE) 1410 printf ("SIOP: SCSI Gross Error\n"); 1411 if (sist & SIOP_SIST_PAR) 1412 printf ("SIOP: Parity Error\n"); 1413 if (dstat & SIOP_DSTAT_IID) 1414 printf ("SIOP: Invalid instruction detected\n"); 1415 bad_phase: 1416 /* 1417 * temporary panic for unhandled conditions 1418 * displays various things about the 53C720/770 status and registers 1419 * then panics. 1420 * XXXX need to clean this up to print out the info, reset, and continue 1421 */ 1422 printf ("siopngchkintr: target %x ds %p\n", target, &acb->ds); 1423 printf ("scripts %lx ds %x rp %x dsp %lx dcmd %lx\n", sc->sc_scriptspa, 1424 kvtop((caddr_t)&acb->ds), kvtop((caddr_t)rp), rp->siop_dsp, 1425 *((long *)&rp->siop_dcmd)); 1426 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %lx dsa %lx sbcl %x sts %x msg %x %x sfbr %x\n", 1427 istat, dstat, sist, rp->siop_dsps, rp->siop_dsa, 1428 rp->siop_sbcl, acb->stat[0], acb->msg[0], acb->msg[1], rp->siop_sfbr); 1429 #ifdef DEBUG 1430 if (siopng_debug & 0x20) 1431 panic("siopngchkintr: **** temp ****"); 1432 #endif 1433 #ifdef DDB 1434 Debugger (); 1435 #endif 1436 siopngreset (sc); /* hard reset */ 1437 *status = -1; 1438 return 0; /* siopngreset cleaned up */ 1439 } 1440 1441 void 1442 siopng_select(sc) 1443 struct siop_softc *sc; 1444 { 1445 siop_regmap_p rp; 1446 struct siop_acb *acb = sc->sc_nexus; 1447 1448 #ifdef DEBUG 1449 if (siopng_debug & 1) 1450 printf ("%s: select ", sc->sc_dev.dv_xname); 1451 #endif 1452 1453 rp = sc->sc_siopp; 1454 if (acb->xs->flags & SCSI_POLL || siopng_no_dma) { 1455 sc->sc_flags |= SIOP_INTSOFF; 1456 sc->sc_flags &= ~SIOP_INTDEFER; 1457 if ((rp->siop_istat & 0x08) == 0) { 1458 rp->siop_sien = 0; 1459 rp->siop_dien = 0; 1460 } 1461 #if 0 1462 } else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 1463 sc->sc_flags &= ~SIOP_INTSOFF; 1464 if ((rp->siop_istat & 0x08) == 0) { 1465 rp->siop_sien = sc->sc_sien; 1466 rp->siop_dien = sc->sc_dien; 1467 } 1468 #endif 1469 } 1470 #ifdef DEBUG 1471 if (siopng_debug & 1) 1472 printf ("siopng_select: target %x cmd %02x ds %p\n", 1473 acb->xs->sc_link->scsipi_scsi.target, acb->cmd.opcode, 1474 &sc->sc_nexus->ds); 1475 #endif 1476 1477 siopng_start(sc, acb->xs->sc_link->scsipi_scsi.target, 1478 acb->xs->sc_link->scsipi_scsi.lun, 1479 (u_char *)&acb->cmd, acb->clen, acb->daddr, acb->dleft); 1480 1481 return; 1482 } 1483 1484 /* 1485 * 53C720/770 interrupt handler 1486 */ 1487 1488 void 1489 siopngintr (sc) 1490 register struct siop_softc *sc; 1491 { 1492 siop_regmap_p rp; 1493 u_char istat, dstat; 1494 u_short sist; 1495 int status; 1496 int s = splbio(); 1497 1498 istat = sc->sc_istat; 1499 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 1500 splx(s); 1501 return; 1502 } 1503 1504 /* Got a valid interrupt on this device */ 1505 rp = sc->sc_siopp; 1506 dstat = sc->sc_dstat; 1507 sist = sc->sc_sist; 1508 if (dstat & SIOP_DSTAT_SIR) 1509 sc->sc_intcode = rp->siop_dsps; 1510 sc->sc_istat = 0; 1511 #ifdef DEBUG 1512 if (siopng_debug & 1) 1513 printf ("%s: intr istat %x dstat %x sist %x\n", 1514 sc->sc_dev.dv_xname, istat, dstat, sist); 1515 if (!sc->sc_active) { 1516 printf ("%s: spurious interrupt? istat %x dstat %x sist %x nexus %p status %x\n", 1517 sc->sc_dev.dv_xname, istat, dstat, sist, 1518 sc->sc_nexus, sc->sc_nexus ? sc->sc_nexus->stat[0] : 0); 1519 } 1520 #endif 1521 1522 #ifdef DEBUG 1523 if (siopng_debug & 5) { 1524 DCIAS(kvtop(&sc->sc_nexus->stat[0])); 1525 printf ("%s: intr istat %x dstat %x sist %x dsps %lx sbcl %x sts %x msg %x\n", 1526 sc->sc_dev.dv_xname, istat, dstat, sist, 1527 rp->siop_dsps, rp->siop_sbcl, 1528 sc->sc_nexus->stat[0], sc->sc_nexus->msg[0]); 1529 } 1530 #endif 1531 if (sc->sc_flags & SIOP_INTDEFER) { 1532 sc->sc_flags &= ~(SIOP_INTDEFER | SIOP_INTSOFF); 1533 rp->siop_sien = sc->sc_sien; 1534 rp->siop_dien = sc->sc_dien; 1535 } 1536 if (siopng_checkintr (sc, istat, dstat, sist, &status)) { 1537 #if 1 1538 if (status == 0xff) 1539 printf ("siopngintr: status == 0xff\n"); 1540 #endif 1541 if ((sc->sc_flags & (SIOP_INTSOFF | SIOP_INTDEFER)) != SIOP_INTSOFF) { 1542 #if 0 1543 if (rp->siop_sbcl & SIOP_BSY) { 1544 printf ("%s: SCSI bus busy at completion", 1545 sc->sc_dev.dv_xname); 1546 printf(" targ %d sbcl %02x sfbr %x respid %02x dsp +%x\n", 1547 sc->sc_nexus->xs->sc_link->scsipi_scsi.target, 1548 rp->siop_sbcl, rp->siop_sfbr, rp->siop_respid, 1549 rp->siop_dsp - sc->sc_scriptspa); 1550 } 1551 #endif 1552 siopng_scsidone(sc->sc_nexus, sc->sc_nexus ? 1553 sc->sc_nexus->stat[0] : -1); 1554 } 1555 } 1556 splx(s); 1557 } 1558 1559 /* 1560 * This is based on the Progressive Peripherals 33Mhz Zeus driver and will 1561 * not be correct for other 53c710 boards. 1562 * 1563 */ 1564 void 1565 scsi_period_to_siopng (sc, target) 1566 struct siop_softc *sc; 1567 int target; 1568 { 1569 int period, offset, sxfer, scntl3 = 0; 1570 #ifdef DEBUG_SYNC 1571 #ifdef FIXME 1572 int i; 1573 #endif 1574 #endif 1575 1576 period = sc->sc_nexus->msg[4]; 1577 offset = sc->sc_nexus->msg[5]; 1578 #ifdef FIXME 1579 #ifdef DEBUG_SYNC 1580 sxfer = 0; 1581 if (offset <= SIOP_MAX_OFFSET) 1582 sxfer = offset; 1583 else 1584 sxfer = SIOP_MAX_OFFSET; 1585 for (i = 0; i < sizeof (sync_tab) / 2; ++i) { 1586 if (period <= sync_tab[i].p) { 1587 sxfer |= sync_tab[i].r & 0x70; 1588 scntl3 = sync_tab[i].r & 0x03; 1589 break; 1590 } 1591 } 1592 printf ("siopng sync old: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1593 #endif /* DEBUG_SYNC */ 1594 for (scntl3 = 1; scntl3 < 4; ++scntl3) { 1595 sxfer = (period * 4 - 1) / sc->sc_tcp[scntl3] - 3; 1596 if (sxfer >= 0 && sxfer <= 7) 1597 break; 1598 } 1599 if (scntl3 > 3) { 1600 printf("siopng sync: unable to compute sync params for period %dns\n", 1601 period * 4); 1602 /* 1603 * XXX need to pick a value we can do and renegotiate 1604 */ 1605 sxfer = scntl3 = 0; 1606 } else { 1607 sxfer = (sxfer << 4) | ((offset <= SIOP_MAX_OFFSET) ? 1608 offset : SIOP_MAX_OFFSET); 1609 #ifdef DEBUG_SYNC 1610 printf("siopng sync: params for period %dns: sxfer %x scntl3 %x", 1611 period * 4, sxfer, scntl3); 1612 printf(" actual period %dns\n", 1613 sc->sc_tcp[scntl3] * ((sxfer >> 4) + 4)); 1614 #endif /* DEBUG_SYNC */ 1615 } 1616 #else /* FIXME */ 1617 sxfer = offset <= SIOP_MAX_OFFSET ? offset : SIOP_MAX_OFFSET; 1618 sxfer |= 0xc0; /* XXX */ 1619 #ifndef FIXME 1620 scntl3 = 0x15; 1621 #else 1622 scntl3 = 5; 1623 #endif 1624 #endif 1625 sc->sc_sync[target].sxfer = sxfer; 1626 sc->sc_sync[target].sbcl = scntl3; 1627 #ifdef DEBUG_SYNC 1628 printf ("siopng sync: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1629 #endif 1630 } 1631 1632 void 1633 siopng_dump_registers(sc) 1634 struct siop_softc *sc; 1635 { 1636 siop_regmap_p rp = sc->sc_siopp; 1637 1638 printf(" scntl0 %02x scntl1 %02x scntl2 %02x scntl3 %02x\n", 1639 rp->siop_scntl0, rp->siop_scntl1, rp->siop_scntl2, rp->siop_scntl3); 1640 printf(" scid %02x sxfer %02x sdid %02x gpreg %02x\n", 1641 rp->siop_scid, rp->siop_sxfer, rp->siop_sdid, rp->siop_gpreg); 1642 printf(" sfbr %02x socl %02x ssid %02x sbcl %02x\n", 1643 rp->siop_sfbr, rp->siop_socl, rp->siop_ssid, rp->siop_sbcl); 1644 printf(" dstat %02x sstat0 %02x sstat1 %02x sstat2 %02x\n", 1645 rp->siop_dstat, rp->siop_sstat0, rp->siop_sstat1, rp->siop_sstat2); 1646 printf(" ctest0 %02x ctest1 %02x ctest2 %02x ctest3 %02x\n", 1647 rp->siop_ctest0, rp->siop_ctest1, rp->siop_ctest2, rp->siop_ctest3); 1648 printf(" dfifo %02x ctest4 %02x ctest5 %02x ctest6 %02x\n", 1649 0, rp->siop_ctest4, rp->siop_ctest5, rp->siop_ctest6); 1650 printf(" dcmd %02x dbc2 %02x dbc1 %02x dbc0 %02x\n", 1651 rp->siop_dcmd, rp->siop_dbc2, rp->siop_dbc1, rp->siop_dbc0); 1652 printf(" dmode %02x dien %02x dwt %02x dcntl %02x\n", 1653 rp->siop_dmode, rp->siop_dien, rp->siop_dwt, rp->siop_dcntl); 1654 printf(" stest0 %02x stest1 %02x stest2 %02x stest3 %02x\n", 1655 rp->siop_stest0, rp->siop_stest1, rp->siop_stest2, rp->siop_stest3); 1656 printf(" istat %02x sien %04x sist %04x respid %04x\n", 1657 rp->siop_istat, rp->siop_sien, rp->siop_sist, rp->siop_respid); 1658 printf(" sidl %04x sodl %04x sbdl %04x\n", 1659 rp->siop_sidl, rp->siop_sodl, rp->siop_sbdl); 1660 printf(" dsps %08lx dsp %08lx (+%lx)\n", 1661 rp->siop_dsps, rp->siop_dsp, rp->siop_dsp > sc->sc_scriptspa ? 1662 rp->siop_dsp - sc->sc_scriptspa : 0); 1663 printf(" dsa %08lx temp %08lx dnad %08lx\n", 1664 rp->siop_dsa, rp->siop_temp, rp->siop_dnad); 1665 printf(" scratcha %08lx scratchb %08lx adder %08lx\n", 1666 rp->siop_scratcha, rp->siop_scratchb, rp->siop_adder); 1667 } 1668 1669 #ifdef DEBUG 1670 1671 #if SIOP_TRACE_SIZE 1672 void 1673 siopng_dump_trace() 1674 { 1675 int i; 1676 1677 printf("siopng trace: next index %d\n", siopng_trix); 1678 i = siopng_trix; 1679 do { 1680 printf("%3d: '%c' %02x %02x %02x\n", i, siopng_trbuf[i], 1681 siopng_trbuf[i + 1], siopng_trbuf[i + 2], siopng_trbuf[i + 3]); 1682 i = (i + 4) & (SIOP_TRACE_SIZE - 1); 1683 } while (i != siopng_trix); 1684 } 1685 #endif 1686 1687 void 1688 siopng_dump_acb(acb) 1689 struct siop_acb *acb; 1690 { 1691 u_char *b = (u_char *) &acb->cmd; 1692 int i; 1693 1694 printf("acb@%p ", acb); 1695 if (acb->xs == NULL) { 1696 printf("<unused>\n"); 1697 return; 1698 } 1699 printf("(%d:%d) flags %2x clen %2d cmd ", 1700 acb->xs->sc_link->scsipi_scsi.target, 1701 acb->xs->sc_link->scsipi_scsi.lun, acb->flags, acb->clen); 1702 for (i = acb->clen; i; --i) 1703 printf(" %02x", *b++); 1704 printf("\n"); 1705 printf(" xs: %p data %p:%04x ", acb->xs, acb->xs->data, 1706 acb->xs->datalen); 1707 printf("va %p:%lx ", acb->iob_buf, acb->iob_len); 1708 printf("cur %lx:%lx\n", acb->iob_curbuf, acb->iob_curlen); 1709 } 1710 1711 void 1712 siopng_dump(sc) 1713 struct siop_softc *sc; 1714 { 1715 struct siop_acb *acb; 1716 siop_regmap_p rp = sc->sc_siopp; 1717 int s; 1718 int i; 1719 1720 s = splbio(); 1721 #if SIOP_TRACE_SIZE 1722 siopng_dump_trace(); 1723 #endif 1724 printf("%s@%p regs %p istat %x\n", 1725 sc->sc_dev.dv_xname, sc, rp, rp->siop_istat); 1726 if ((acb = sc->free_list.tqh_first) > 0) { 1727 printf("Free list:\n"); 1728 while (acb) { 1729 siopng_dump_acb(acb); 1730 acb = acb->chain.tqe_next; 1731 } 1732 } 1733 if ((acb = sc->ready_list.tqh_first) > 0) { 1734 printf("Ready list:\n"); 1735 while (acb) { 1736 siopng_dump_acb(acb); 1737 acb = acb->chain.tqe_next; 1738 } 1739 } 1740 if ((acb = sc->nexus_list.tqh_first) > 0) { 1741 printf("Nexus list:\n"); 1742 while (acb) { 1743 siopng_dump_acb(acb); 1744 acb = acb->chain.tqe_next; 1745 } 1746 } 1747 if (sc->sc_nexus) { 1748 printf("Nexus:\n"); 1749 siopng_dump_acb(sc->sc_nexus); 1750 } 1751 for (i = 0; i < 8; ++i) { 1752 if (sc->sc_tinfo[i].cmds > 2) { 1753 printf("tgt %d: cmds %d disc %d senses %d lubusy %x\n", 1754 i, sc->sc_tinfo[i].cmds, 1755 sc->sc_tinfo[i].dconns, 1756 sc->sc_tinfo[i].senses, 1757 sc->sc_tinfo[i].lubusy); 1758 } 1759 } 1760 splx(s); 1761 } 1762 #endif 1763
Indexes created Thu Oct 02 14:10:14 GMT 2025