siop2.c revision 1.15.4.1
1 /* $NetBSD: siop2.c,v 1.15.4.1 2001/10/11 00:01:42 fvdl 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 #ifdef __m68k__ 60 #include <m68k/include/cacheops.h> 61 #endif 62 #include <amiga/amiga/custom.h> 63 #include <amiga/amiga/isr.h> 64 65 #define ARCH_720 66 67 #include <amiga/dev/siopreg.h> 68 #include <amiga/dev/siopvar.h> 69 70 /* 71 * SCSI delays 72 * In u-seconds, primarily for state changes on the SPC. 73 */ 74 #define SCSI_CMD_WAIT 500000 /* wait per step of 'immediate' cmds */ 75 #define SCSI_DATA_WAIT 500000 /* wait per data in/out step */ 76 #define SCSI_INIT_WAIT 500000 /* wait per step (both) during init */ 77 78 void siopng_select __P((struct siop_softc *)); 79 void siopngabort __P((struct siop_softc *, siop_regmap_p, char *)); 80 void siopngerror __P((struct siop_softc *, siop_regmap_p, u_char)); 81 void siopngstart __P((struct siop_softc *)); 82 int siopng_checkintr __P((struct siop_softc *, u_char, u_char, u_short, int *)); 83 void siopngreset __P((struct siop_softc *)); 84 void siopngsetdelay __P((int)); 85 void siopng_scsidone __P((struct siop_acb *, int)); 86 void siopng_sched __P((struct siop_softc *)); 87 void siopng_poll __P((struct siop_softc *, struct siop_acb *)); 88 void siopngintr __P((struct siop_softc *)); 89 void scsi_period_to_siopng __P((struct siop_softc *, int)); 90 void siopng_start __P((struct siop_softc *, int, int, u_char *, int, u_char *, int)); 91 void siopng_dump_acb __P((struct siop_acb *)); 92 93 /* 53C720/770 script */ 94 95 #include <amiga/dev/siop2_script.out> 96 97 /* default to not inhibit sync negotiation on any drive */ 98 u_char siopng_inhibit_sync[16] = { 99 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 100 }; /* initialize, so patchable */ 101 102 u_char siopng_inhibit_wide[16] = { 103 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 104 }; /* initialize, so patchable */ 105 106 u_char siopng_allow_disc[16] = { 107 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 108 }; 109 110 int siopng_no_dma = 0; 111 112 int siopng_reset_delay = 250; /* delay after reset, in milleseconds */ 113 114 int siopng_cmd_wait = SCSI_CMD_WAIT; 115 int siopng_data_wait = SCSI_DATA_WAIT; 116 int siopng_init_wait = SCSI_INIT_WAIT; 117 118 #define DEBUG_SYNC 119 120 #ifdef DEBUG 121 /* 122 * 0x01 - full debug 123 * 0x02 - DMA chaining 124 * 0x04 - siopngintr 125 * 0x08 - phase mismatch 126 * 0x10 - <not used> 127 * 0x20 - panic on unhandled exceptions 128 * 0x100 - disconnect/reselect 129 */ 130 int siopng_debug = 0; 131 int siopngsync_debug = 0; 132 int siopngdma_hits = 0; 133 int siopngdma_misses = 0; 134 int siopngchain_ints = 0; 135 int siopngstarts = 0; 136 int siopngints = 0; 137 int siopngphmm = 0; 138 #define SIOP_TRACE_SIZE 128 139 #define SIOP_TRACE(a,b,c,d) \ 140 siopng_trbuf[siopng_trix] = (a); \ 141 siopng_trbuf[siopng_trix+1] = (b); \ 142 siopng_trbuf[siopng_trix+2] = (c); \ 143 siopng_trbuf[siopng_trix+3] = (d); \ 144 siopng_trix = (siopng_trix + 4) & (SIOP_TRACE_SIZE - 1); 145 u_char siopng_trbuf[SIOP_TRACE_SIZE]; 146 int siopng_trix; 147 void siopng_dump __P((struct siop_softc *)); 148 void siopng_dump_trace __P((void)); 149 #else 150 #define SIOP_TRACE(a,b,c,d) 151 #endif 152 153 154 static char *siopng_chips[] = { 155 "720", "720SE", "770", "0x3", 156 "810A", "0x5", "0x6", "0x7", 157 "0x8", "0x9", "0xA", "0xB", 158 "0xC", "0xD", "0xE", "0xF", 159 }; 160 161 /* 162 * default minphys routine for siopng based controllers 163 */ 164 void 165 siopng_minphys(bp) 166 struct buf *bp; 167 { 168 169 /* 170 * No max transfer at this level. 171 */ 172 minphys(bp); 173 } 174 175 /* 176 * used by specific siopng controller 177 * 178 */ 179 void 180 siopng_scsipi_request(chan, req, arg) 181 struct scsipi_channel *chan; 182 scsipi_adapter_req_t req; 183 void *arg; 184 { 185 struct scsipi_xfer *xs; 186 struct scsipi_periph *periph; 187 struct siop_acb *acb; 188 struct siop_softc *sc = (void *)chan->chan_adapter->adapt_dev; 189 int flags, s; 190 191 switch (req) { 192 case ADAPTER_REQ_RUN_XFER: 193 xs = arg; 194 periph = xs->xs_periph; 195 flags = xs->xs_control; 196 197 /* XXXX ?? */ 198 if (flags & XS_CTL_DATA_UIO) 199 panic("siopng: scsi data uio requested"); 200 201 /* XXXX ?? */ 202 if (sc->sc_nexus && flags & XS_CTL_POLL) 203 /* panic("siopng_scsicmd: busy");*/ 204 printf("siopng_scsicmd: busy\n"); 205 206 s = splbio(); 207 acb = sc->free_list.tqh_first; 208 if (acb) { 209 TAILQ_REMOVE(&sc->free_list, acb, chain); 210 } 211 splx(s); 212 213 #ifdef DIAGNOSTIC 214 /* 215 * This should never happen as we track the resources 216 * in the mid-layer. 217 */ 218 if (acb == NULL) { 219 scsipi_printaddr(periph); 220 printf("unable to allocate acb\n"); 221 panic("siopng_scsipi_request"); 222 } 223 #endif 224 acb->flags = ACB_ACTIVE; 225 acb->xs = xs; 226 bcopy(xs->cmd, &acb->cmd, xs->cmdlen); 227 acb->clen = xs->cmdlen; 228 acb->daddr = xs->data; 229 acb->dleft = xs->datalen; 230 231 s = splbio(); 232 TAILQ_INSERT_TAIL(&sc->ready_list, acb, chain); 233 234 if (sc->sc_nexus == NULL) 235 siopng_sched(sc); 236 237 splx(s); 238 239 if (flags & XS_CTL_POLL || siopng_no_dma) 240 siopng_poll(sc, acb); 241 return; 242 243 case ADAPTER_REQ_GROW_RESOURCES: 244 return; 245 246 case ADAPTER_REQ_SET_XFER_MODE: 247 return; 248 } 249 } 250 251 void 252 siopng_poll(sc, acb) 253 struct siop_softc *sc; 254 struct siop_acb *acb; 255 { 256 siop_regmap_p rp = sc->sc_siopp; 257 struct scsipi_xfer *xs = acb->xs; 258 int i; 259 int status; 260 u_char istat; 261 u_char dstat; 262 u_short sist; 263 int s; 264 int to; 265 266 s = splbio(); 267 to = xs->timeout / 1000; 268 if (sc->nexus_list.tqh_first) 269 printf("%s: siopng_poll called with disconnected device\n", 270 sc->sc_dev.dv_xname); 271 for (;;) { 272 /* use cmd_wait values? */ 273 i = 50000; 274 /* XXX spl0(); */ 275 while (((istat = rp->siop_istat) & 276 (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 277 if (--i <= 0) { 278 #ifdef DEBUG 279 printf ("waiting: tgt %d cmd %02x sbcl %02x istat %02x sbdl %04x\n dsp %lx (+%lx) dcmd %lx ds %p timeout %d\n", 280 xs->xs_periph->periph_target, acb->cmd.opcode, 281 rp->siop_sbcl, istat, rp->siop_sbdl, rp->siop_dsp, 282 rp->siop_dsp - sc->sc_scriptspa, 283 *((long *)&rp->siop_dcmd), &acb->ds, acb->xs->timeout); 284 #endif 285 i = 50000; 286 --to; 287 if (to <= 0) { 288 siopngreset(sc); 289 return; 290 } 291 } 292 delay(20); 293 } 294 sist = rp->siop_sist; 295 dstat = rp->siop_dstat; 296 if (siopng_checkintr(sc, istat, dstat, sist, &status)) { 297 if (acb != sc->sc_nexus) 298 printf("%s: siopng_poll disconnected device completed\n", 299 sc->sc_dev.dv_xname); 300 else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 301 sc->sc_flags &= ~SIOP_INTSOFF; 302 rp->siop_sien = sc->sc_sien; 303 rp->siop_dien = sc->sc_dien; 304 } 305 siopng_scsidone(sc->sc_nexus, status); 306 } 307 if (xs->xs_status & XS_STS_DONE) 308 break; 309 } 310 splx(s); 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_periph *periph; 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->xs_periph->periph_target, 329 sc->ready_list.tqh_first, 330 sc->ready_list.tqh_first->xs->xs_periph->periph_target); 331 return; 332 } 333 #endif 334 for (acb = sc->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) { 335 periph = acb->xs->xs_periph; 336 i = periph->periph_target; 337 if(!(sc->sc_tinfo[i].lubusy & (1 << periph->periph_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 periph = acb->xs->xs_periph; 343 ti = &sc->sc_tinfo[periph->periph_target]; 344 ti->lubusy |= (1 << periph->periph_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->xs_control & XS_CTL_RESET) 358 siopngreset(sc); 359 360 #if 0 361 acb->cmd.bytes[0] |= periph->periph_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_periph *periph; 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 periph = xs->xs_periph; 387 sc = (void *)periph->periph_channel->chan_adapter->adapt_dev; 388 389 xs->status = stat; 390 xs->resid = 0; /* XXXX */ 391 392 if (xs->error == XS_NOERROR) { 393 if (stat == SCSI_CHECK || stat == SCSI_BUSY) 394 xs->error = XS_BUSY; 395 } 396 397 /* 398 * Remove the ACB from whatever queue it's on. We have to do a bit of 399 * a hack to figure out which queue it's on. Note that it is *not* 400 * necessary to cdr down the ready queue, but we must cdr down the 401 * nexus queue and see if it's there, so we can mark the unit as no 402 * longer busy. This code is sickening, but it works. 403 */ 404 if (acb == sc->sc_nexus) { 405 sc->sc_nexus = NULL; 406 sc->sc_tinfo[periph->periph_target].lubusy &= 407 ~(1<<periph->periph_lun); 408 if (sc->ready_list.tqh_first) 409 dosched = 1; /* start next command */ 410 --sc->sc_active; 411 SIOP_TRACE('d','a',stat,0) 412 } else if (sc->ready_list.tqh_last == &acb->chain.tqe_next) { 413 TAILQ_REMOVE(&sc->ready_list, acb, chain); 414 SIOP_TRACE('d','r',stat,0) 415 } else { 416 register struct siop_acb *acb2; 417 for (acb2 = sc->nexus_list.tqh_first; acb2; 418 acb2 = acb2->chain.tqe_next) 419 if (acb2 == acb) { 420 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 421 sc->sc_tinfo[periph->periph_target].lubusy 422 &= ~(1<<periph->periph_lun); 423 --sc->sc_active; 424 break; 425 } 426 if (acb2) 427 ; 428 else if (acb->chain.tqe_next) { 429 TAILQ_REMOVE(&sc->ready_list, acb, chain); 430 --sc->sc_active; 431 } else { 432 printf("%s: can't find matching acb\n", 433 sc->sc_dev.dv_xname); 434 #ifdef DDB 435 /* Debugger(); */ 436 #endif 437 } 438 SIOP_TRACE('d','n',stat,0); 439 } 440 /* Put it on the free list. */ 441 acb->flags = ACB_FREE; 442 TAILQ_INSERT_HEAD(&sc->free_list, acb, chain); 443 444 sc->sc_tinfo[periph->periph_target].cmds++; 445 446 scsipi_done(xs); 447 448 if (dosched && sc->sc_nexus == NULL) 449 siopng_sched(sc); 450 } 451 452 void 453 siopngabort(sc, rp, where) 454 register struct siop_softc *sc; 455 siop_regmap_p rp; 456 char *where; 457 { 458 #ifdef fix_this 459 int i; 460 #endif 461 462 printf ("%s: abort %s: dstat %02x, istat %02x sist %04x sien %04x sbcl %02x\n", 463 sc->sc_dev.dv_xname, 464 where, rp->siop_dstat, rp->siop_istat, rp->siop_sist, 465 rp->siop_sien, rp->siop_sbcl); 466 siopng_dump_registers(sc); 467 468 if (sc->sc_active > 0) { 469 #ifdef TODO 470 SET_SBIC_cmd (rp, SBIC_CMD_ABORT); 471 WAIT_CIP (rp); 472 473 GET_SBIC_asr (rp, asr); 474 if (asr & (SBIC_ASR_BSY|SBIC_ASR_LCI)) 475 { 476 /* ok, get more drastic.. */ 477 478 SET_SBIC_cmd (rp, SBIC_CMD_RESET); 479 delay(25); 480 SBIC_WAIT(rp, SBIC_ASR_INT, 0); 481 GET_SBIC_csr (rp, csr); /* clears interrupt also */ 482 483 return; 484 } 485 486 do 487 { 488 SBIC_WAIT (rp, SBIC_ASR_INT, 0); 489 GET_SBIC_csr (rp, csr); 490 } 491 while ((csr != SBIC_CSR_DISC) && (csr != SBIC_CSR_DISC_1) 492 && (csr != SBIC_CSR_CMD_INVALID)); 493 #endif 494 495 /* lets just hope it worked.. */ 496 #ifdef fix_this 497 for (i = 0; i < 2; ++i) { 498 if (sc->sc_iob[i].sc_xs && &sc->sc_iob[i] != 499 sc->sc_cur) { 500 printf ("siopngabort: cleanup!\n"); 501 sc->sc_iob[i].sc_xs = NULL; 502 } 503 } 504 #endif /* fix_this */ 505 /* sc->sc_active = 0; */ 506 } 507 } 508 509 void 510 siopnginitialize(sc) 511 struct siop_softc *sc; 512 { 513 int i; 514 u_int inhibit_sync; 515 extern u_long scsi_nosync; 516 extern int shift_nosync; 517 518 /* 519 * Need to check that scripts is on a long word boundary 520 * Also should verify that dev doesn't span non-contiguous 521 * physical pages. 522 */ 523 sc->sc_scriptspa = kvtop((caddr_t)siopng_scripts); 524 525 /* 526 * malloc sc_acb to ensure that DS is on a long word boundary. 527 */ 528 529 MALLOC(sc->sc_acb, struct siop_acb *, 530 sizeof(struct siop_acb) * SIOP_NACB, M_DEVBUF, M_NOWAIT); 531 if (sc->sc_acb == NULL) 532 panic("siopnginitialize: ACB malloc failed!"); 533 534 sc->sc_tcp[1] = 1000 / sc->sc_clock_freq; 535 sc->sc_tcp[2] = 1500 / sc->sc_clock_freq; 536 sc->sc_tcp[3] = 2000 / sc->sc_clock_freq; 537 sc->sc_minsync = sc->sc_tcp[1]; /* in 4ns units */ 538 if (sc->sc_minsync < 25) 539 sc->sc_minsync = 25; 540 sc->sc_minsync >>= 1; /* Using clock doubler, allow Ultra */ 541 if (sc->sc_clock_freq <= 25) { 542 sc->sc_dcntl |= 0x80; /* SCLK/1 */ 543 sc->sc_tcp[0] = sc->sc_tcp[1]; 544 } else if (sc->sc_clock_freq <= 37) { 545 sc->sc_dcntl |= 0x40; /* SCLK/1.5 */ 546 sc->sc_tcp[0] = sc->sc_tcp[2]; 547 } else if (sc->sc_clock_freq <= 50) { 548 sc->sc_dcntl |= 0x00; /* SCLK/2 */ 549 sc->sc_tcp[0] = sc->sc_tcp[3]; 550 } else { 551 sc->sc_dcntl |= 0xc0; /* SCLK/3 */ 552 sc->sc_tcp[0] = 3000 / sc->sc_clock_freq; 553 } 554 555 if (scsi_nosync) { 556 inhibit_sync = (scsi_nosync >> shift_nosync) & 0xffff; 557 shift_nosync += 16; /* XXX maxtarget */ 558 #ifdef DEBUG 559 if (inhibit_sync) 560 printf("%s: Inhibiting synchronous transfer %02x\n", 561 sc->sc_dev.dv_xname, inhibit_sync); 562 #endif 563 for (i = 0; i < 16; ++i) /* XXX maxtarget */ 564 if (inhibit_sync & (1 << i)) 565 siopng_inhibit_sync[i] = 1; 566 } 567 568 siopngreset (sc); 569 } 570 571 void 572 siopngreset(sc) 573 struct siop_softc *sc; 574 { 575 siop_regmap_p rp; 576 u_int i, s; 577 u_short dummy; 578 struct siop_acb *acb; 579 580 rp = sc->sc_siopp; 581 582 if (sc->sc_flags & SIOP_ALIVE) 583 siopngabort(sc, rp, "reset"); 584 585 printf("%s: ", sc->sc_dev.dv_xname); /* XXXX */ 586 587 s = splbio(); 588 589 /* 590 * Reset the chip 591 * XXX - is this really needed? 592 */ 593 rp->siop_istat |= SIOP_ISTAT_ABRT; /* abort current script */ 594 rp->siop_istat |= SIOP_ISTAT_RST; /* reset chip */ 595 rp->siop_istat &= ~SIOP_ISTAT_RST; 596 /* 597 * Reset SCSI bus (do we really want this?) 598 */ 599 rp->siop_sien = 0; 600 rp->siop_scntl1 |= SIOP_SCNTL1_RST; 601 delay(1); 602 rp->siop_scntl1 &= ~SIOP_SCNTL1_RST; 603 604 /* 605 * Set up various chip parameters 606 */ 607 rp->siop_stest1 |= SIOP_STEST1_DBLEN; /* SCLK doubler enable */ 608 delay(20); 609 rp->siop_stest3 |= SIOP_STEST3_HSC; /* Halt SCSI clock */ 610 rp->siop_scntl3 = 0x15; /* SCF/CCF*/ 611 rp->siop_stest1 |= SIOP_STEST1_DBLSEL; /* SCLK doubler select */ 612 rp->siop_stest3 &= ~SIOP_STEST3_HSC; /* Clear Halt SCSI clock */ 613 rp->siop_scntl0 = SIOP_ARB_FULL | /*SIOP_SCNTL0_EPC |*/ SIOP_SCNTL0_EPG; 614 rp->siop_dcntl = sc->sc_dcntl; 615 rp->siop_dmode = 0xc0; /* XXX burst length */ 616 rp->siop_sien = 0x00; /* don't enable interrupts yet */ 617 rp->siop_dien = 0x00; /* don't enable interrupts yet */ 618 rp->siop_scid = sc->sc_channel.chan_id | 619 SIOP_SCID_RRE | SIOP_SCID_SRE; 620 rp->siop_respid = 1 << sc->sc_channel.chan_id; 621 rp->siop_dwt = 0x00; 622 rp->siop_stime0 = 0x0c; /* XXXXX check */ 623 624 /* will need to re-negotiate sync xfers */ 625 bzero(&sc->sc_sync, sizeof (sc->sc_sync)); 626 627 i = rp->siop_istat; 628 if (i & SIOP_ISTAT_SIP) 629 dummy = rp->siop_sist; 630 if (i & SIOP_ISTAT_DIP) 631 dummy = rp->siop_dstat; 632 633 splx (s); 634 635 delay (siopng_reset_delay * 1000); 636 637 /* 638 * is lower half unterminated? 639 */ 640 if ((rp->siop_sbdl & 0x00ff) == 0x00ff) { 641 printf(" no SCSI termination, host adapter deactivated.\n"); 642 sc->sc_channel.chan_ntargets = 0; /* XXX */ 643 sc->sc_flags &= ~(SIOP_ALIVE|SIOP_INTDEFER|SIOP_INTSOFF); 644 /* disable SCSI and DMA interrupts */ 645 sc->sc_sien = 0; 646 sc->sc_dien = 0; 647 rp->siop_sien = sc->sc_sien; 648 rp->siop_dien = sc->sc_dien; 649 650 return; 651 } 652 653 /* 654 * Check if upper half of SCSI bus is unterminated, and disallow 655 * disconnections if it appears to be unterminated. 656 */ 657 if ((rp->siop_sbdl & 0xff00) == 0xff00) { 658 printf(" NO WIDE TERM"); 659 /* XXX need to restrict maximum target ID as well? */ 660 sc->sc_channel.chan_ntargets = 8; 661 for (i = 0; i < 16; ++i) { 662 siopng_allow_disc[i] = 0; 663 siopng_inhibit_wide[i] |= 0x80; 664 } 665 } 666 667 printf("siopng type %s id %d reset V%d\n", 668 siopng_chips[rp->siop_macntl>>4], 669 sc->sc_channel.chan_ntargets, 670 rp->siop_ctest3 >> 4); 671 672 if ((sc->sc_flags & SIOP_ALIVE) == 0) { 673 TAILQ_INIT(&sc->ready_list); 674 TAILQ_INIT(&sc->nexus_list); 675 TAILQ_INIT(&sc->free_list); 676 sc->sc_nexus = NULL; 677 acb = sc->sc_acb; 678 bzero(acb, sizeof(struct siop_acb) * SIOP_NACB); 679 for (i = 0; i < SIOP_NACB; i++) { 680 TAILQ_INSERT_TAIL(&sc->free_list, acb, chain); 681 acb++; 682 } 683 bzero(sc->sc_tinfo, sizeof(sc->sc_tinfo)); 684 } else { 685 if (sc->sc_nexus != NULL) { 686 sc->sc_nexus->xs->error = XS_RESET; 687 siopng_scsidone(sc->sc_nexus, sc->sc_nexus->stat[0]); 688 } 689 while ((acb = sc->nexus_list.tqh_first) > 0) { 690 acb->xs->error = XS_RESET; 691 siopng_scsidone(acb, acb->stat[0]); 692 } 693 } 694 695 sc->sc_flags |= SIOP_ALIVE; 696 sc->sc_flags &= ~(SIOP_INTDEFER|SIOP_INTSOFF); 697 /* enable SCSI and DMA interrupts */ 698 sc->sc_sien = SIOP_SIEN_MA | SIOP_SIEN_STO | /*SIOP_SIEN_GEN |*/ 699 /*SIOP_SIEN_SEL |*/ SIOP_SIEN_SGE | SIOP_SIEN_UDC | 700 SIOP_SIEN_RST | SIOP_SIEN_PAR; 701 sc->sc_dien = SIOP_DIEN_BF | SIOP_DIEN_ABRT | SIOP_DIEN_SIR | 702 /*SIOP_DIEN_WTD |*/ SIOP_DIEN_IID; 703 rp->siop_sien = sc->sc_sien; 704 rp->siop_dien = sc->sc_dien; 705 /*siopng_dump_registers(sc);*/ 706 } 707 708 /* 709 * Setup Data Storage for 53C720/770 and start SCRIPTS processing 710 */ 711 712 void 713 siopng_start (sc, target, lun, cbuf, clen, buf, len) 714 struct siop_softc *sc; 715 int target; 716 int lun; 717 u_char *cbuf; 718 int clen; 719 u_char *buf; 720 int len; 721 { 722 siop_regmap_p rp = sc->sc_siopp; 723 int nchain; 724 int count, tcount; 725 char *addr, *dmaend; 726 struct siop_acb *acb = sc->sc_nexus; 727 #ifdef DEBUG 728 int i; 729 #endif 730 731 #ifdef DEBUG 732 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 733 printf ("ACK! siopng was busy: rp %p script %p dsa %p active %ld\n", 734 rp, &siopng_scripts, &acb->ds, sc->sc_active); 735 printf ("istat %02x sfbr %02x respid %02x sien %04x dien %02x\n", 736 rp->siop_istat, rp->siop_sfbr, rp->siop_respid, 737 rp->siop_sien, rp->siop_dien); 738 #ifdef DDB 739 /*Debugger();*/ 740 #endif 741 } 742 #endif 743 acb->msgout[0] = MSG_IDENTIFY | lun; 744 if (siopng_allow_disc[target] & 2 || 745 (siopng_allow_disc[target] && len == 0)) 746 acb->msgout[0] = MSG_IDENTIFY_DR | lun; 747 acb->status = 0; 748 acb->stat[0] = -1; 749 acb->msg[0] = -1; 750 acb->ds.scsi_addr = (target << 16) | (sc->sc_sync[target].sxfer << 8) | 751 (sc->sc_sync[target].scntl3 << 24); 752 acb->ds.idlen = 1; 753 acb->ds.idbuf = (char *) kvtop(&acb->msgout[0]); 754 acb->ds.cmdlen = clen; 755 acb->ds.cmdbuf = (char *) kvtop(cbuf); 756 acb->ds.stslen = 1; 757 acb->ds.stsbuf = (char *) kvtop(&acb->stat[0]); 758 acb->ds.msglen = 1; 759 acb->ds.msgbuf = (char *) kvtop(&acb->msg[0]); 760 acb->msg[1] = -1; 761 acb->ds.msginlen = 1; 762 acb->ds.extmsglen = 1; 763 acb->ds.synmsglen = 3; 764 acb->ds.msginbuf = acb->ds.msgbuf + 1; 765 acb->ds.extmsgbuf = acb->ds.msginbuf + 1; 766 acb->ds.synmsgbuf = acb->ds.extmsgbuf + 1; 767 bzero(&acb->ds.chain, sizeof (acb->ds.chain)); 768 769 if (sc->sc_sync[target].state == NEG_WIDE) { 770 if (siopng_inhibit_wide[target]) { 771 sc->sc_sync[target].state = NEG_SYNC; 772 sc->sc_sync[target].scntl3 &= ~SIOP_SCNTL3_EWS; 773 #ifdef DEBUG 774 if (siopngsync_debug) 775 printf ("Forcing target %d narrow\n", target); 776 #endif 777 } 778 else { 779 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 780 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 781 acb->msg[2] = -1; 782 acb->msgout[1] = MSG_EXT_MESSAGE; 783 acb->msgout[2] = 2; 784 acb->msgout[3] = MSG_WIDE_REQ; 785 acb->msgout[4] = 1; 786 acb->ds.idlen = 5; 787 acb->ds.synmsglen = 2; 788 sc->sc_sync[target].state = NEG_WAITW; 789 #ifdef DEBUG 790 if (siopngsync_debug) 791 printf("Sending wide request to target %d\n", target); 792 #endif 793 } 794 } 795 if (sc->sc_sync[target].state == NEG_SYNC) { 796 if (siopng_inhibit_sync[target]) { 797 sc->sc_sync[target].state = NEG_DONE; 798 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 799 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 800 sc->sc_sync[target].sxfer = 0; 801 #ifdef DEBUG 802 if (siopngsync_debug) 803 printf ("Forcing target %d asynchronous\n", target); 804 #endif 805 } 806 else { 807 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 808 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 809 acb->msg[2] = -1; 810 acb->msgout[1] = MSG_EXT_MESSAGE; 811 acb->msgout[2] = 3; 812 acb->msgout[3] = MSG_SYNC_REQ; 813 #ifdef MAXTOR_SYNC_KLUDGE 814 acb->msgout[4] = 50 / 4; /* ask for ridiculous period */ 815 #else 816 acb->msgout[4] = sc->sc_minsync; 817 #endif 818 acb->msgout[5] = SIOP_MAX_OFFSET; 819 acb->ds.idlen = 6; 820 sc->sc_sync[target].state = NEG_WAITS; 821 #ifdef DEBUG 822 if (siopngsync_debug) 823 printf ("Sending sync request to target %d\n", target); 824 #endif 825 } 826 } 827 828 /* 829 * Build physical DMA addresses for scatter/gather I/O 830 */ 831 acb->iob_buf = buf; 832 acb->iob_len = len; 833 acb->iob_curbuf = acb->iob_curlen = 0; 834 nchain = 0; 835 count = len; 836 addr = buf; 837 dmaend = NULL; 838 while (count > 0) { 839 acb->ds.chain[nchain].databuf = (char *) kvtop (addr); 840 if (count < (tcount = NBPG - ((int) addr & PGOFSET))) 841 tcount = count; 842 843 #if DEBUG_ONLY_IF_DESPERATE 844 printf("chain[%d]: count %d tcount %d vaddr %p paddr %p\n", 845 nchain, count, tcount, addr, 846 acb->ds.chain[nchain].databuf); 847 #endif 848 acb->ds.chain[nchain].datalen = tcount; 849 addr += tcount; 850 count -= tcount; 851 if (acb->ds.chain[nchain].databuf == dmaend) { 852 dmaend += acb->ds.chain[nchain].datalen; 853 acb->ds.chain[nchain].datalen = 0; 854 acb->ds.chain[--nchain].datalen += tcount; 855 #ifdef DEBUG 856 ++siopngdma_hits; 857 #endif 858 } 859 else { 860 dmaend = acb->ds.chain[nchain].databuf + 861 acb->ds.chain[nchain].datalen; 862 acb->ds.chain[nchain].datalen = tcount; 863 #ifdef DEBUG 864 if (nchain) /* Don't count miss on first one */ 865 ++siopngdma_misses; 866 #endif 867 } 868 ++nchain; 869 } 870 #ifdef DEBUG 871 if (nchain != 1 && len != 0 && siopng_debug & 3) { 872 printf ("DMA chaining set: %d\n", nchain); 873 for (i = 0; i < nchain; ++i) { 874 printf (" [%d] %8p %lx\n", i, acb->ds.chain[i].databuf, 875 acb->ds.chain[i].datalen); 876 } 877 } 878 #endif 879 880 /* push data cache for all data the 53c720/770 needs to access */ 881 dma_cachectl ((caddr_t)acb, sizeof (struct siop_acb)); 882 dma_cachectl (cbuf, clen); 883 if (buf != NULL && len != 0) 884 dma_cachectl (buf, len); 885 #ifdef DEBUG 886 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 887 printf ("ACK! siopng was busy at start: rp %p script %p dsa %p active %ld\n", 888 rp, &siopng_scripts, &acb->ds, sc->sc_active); 889 #ifdef DDB 890 /*Debugger();*/ 891 #endif 892 } 893 #endif 894 if (sc->nexus_list.tqh_first == NULL) { 895 if (rp->siop_istat & SIOP_ISTAT_CON) 896 printf("%s: siopng_select while connected?\n", 897 sc->sc_dev.dv_xname); 898 rp->siop_temp = 0; 899 #ifndef FIXME 900 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 901 #endif 902 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 903 rp->siop_dsp = sc->sc_scriptspa; 904 SIOP_TRACE('s',1,0,0) 905 } else { 906 if ((rp->siop_istat & SIOP_ISTAT_CON) == 0) { 907 rp->siop_istat = SIOP_ISTAT_SIGP; 908 SIOP_TRACE('s',2,0,0); 909 } 910 else { 911 SIOP_TRACE('s',3,rp->siop_istat,0); 912 } 913 } 914 #ifdef DEBUG 915 ++siopngstarts; 916 #endif 917 } 918 919 /* 920 * Process a DMA or SCSI interrupt from the 53C720/770 SIOP 921 */ 922 923 int 924 siopng_checkintr(sc, istat, dstat, sist, status) 925 struct siop_softc *sc; 926 u_char istat; 927 u_char dstat; 928 u_short sist; 929 int *status; 930 { 931 siop_regmap_p rp = sc->sc_siopp; 932 struct siop_acb *acb = sc->sc_nexus; 933 int target = 0; 934 int dfifo, dbc, sstat0, sstat1, sstat2; 935 936 dfifo = rp->siop_dfifo; 937 dbc = rp->siop_dbc0; 938 sstat0 = rp->siop_sstat0; 939 sstat1 = rp->siop_sstat1; 940 sstat2 = rp->siop_sstat2; 941 rp->siop_ctest3 |= SIOP_CTEST8_CLF; 942 while ((rp->siop_ctest1 & SIOP_CTEST1_FMT) != SIOP_CTEST1_FMT) 943 ; 944 rp->siop_ctest3 &= ~SIOP_CTEST8_CLF; 945 #ifdef DEBUG 946 ++siopngints; 947 #if 0 948 if (siopng_debug & 0x100) { 949 DCIAS(&acb->stat[0]); /* XXX */ 950 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %x sbcl %x sts %x msg %x\n", 951 istat, dstat, sist, rp->siop_dsps, rp->siop_sbcl, acb->stat[0], acb->msg[0]); 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 } 956 #endif 957 if (rp->siop_dsp && (rp->siop_dsp < sc->sc_scriptspa || 958 rp->siop_dsp >= sc->sc_scriptspa + sizeof(siopng_scripts))) { 959 printf ("%s: dsp not within script dsp %lx scripts %lx:%lx", 960 sc->sc_dev.dv_xname, rp->siop_dsp, sc->sc_scriptspa, 961 sc->sc_scriptspa + sizeof(siopng_scripts)); 962 printf(" istat %x dstat %x sist %x\n", 963 istat, dstat, sist); 964 #ifdef DDB 965 Debugger(); 966 #endif 967 } 968 #endif 969 SIOP_TRACE('i',dstat,istat,(istat&SIOP_ISTAT_DIP)?rp->siop_dsps&0xff:sist); 970 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff00) { 971 /* Normal completion status, or check condition */ 972 #ifdef DEBUG 973 if (rp->siop_dsa != kvtop((caddr_t)&acb->ds)) { 974 printf ("siopng: invalid dsa: %lx %x\n", rp->siop_dsa, 975 kvtop((caddr_t)&acb->ds)); 976 panic("*** siopng DSA invalid ***"); 977 } 978 #endif 979 target = acb->xs->xs_periph->periph_target; 980 if (sc->sc_sync[target].state == NEG_WAITW) { 981 if (acb->msg[1] == 0xff) 982 printf ("%s: target %d ignored wide request\n", 983 sc->sc_dev.dv_xname, target); 984 else if (acb->msg[1] == MSG_REJECT) 985 printf ("%s: target %d rejected wide request\n", 986 sc->sc_dev.dv_xname, target); 987 else { 988 printf("%s: target %d (wide) %02x %02x %02x %02x\n", 989 sc->sc_dev.dv_xname, target, acb->msg[1], 990 acb->msg[2], acb->msg[3], acb->msg[4]); 991 if (acb->msg[1] == MSG_EXT_MESSAGE && 992 acb->msg[2] == 2 && 993 acb->msg[3] == MSG_WIDE_REQ) 994 sc->sc_sync[target].scntl3 = acb->msg[4] ? 995 sc->sc_sync[target].scntl3 | SIOP_SCNTL3_EWS : 996 sc->sc_sync[target].scntl3 & ~SIOP_SCNTL3_EWS; 997 } 998 sc->sc_sync[target].state = NEG_SYNC; 999 } 1000 if (sc->sc_sync[target].state == NEG_WAITS) { 1001 if (acb->msg[1] == 0xff) 1002 printf ("%s: target %d ignored sync request\n", 1003 sc->sc_dev.dv_xname, target); 1004 else if (acb->msg[1] == MSG_REJECT) 1005 printf ("%s: target %d rejected sync request\n", 1006 sc->sc_dev.dv_xname, target); 1007 else 1008 /* XXX - need to set sync transfer parameters */ 1009 printf("%s: target %d (sync) %02x %02x %02x\n", 1010 sc->sc_dev.dv_xname, target, acb->msg[1], 1011 acb->msg[2], acb->msg[3]); 1012 sc->sc_sync[target].state = NEG_DONE; 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 (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0b) { 1033 target = acb->xs->xs_periph->periph_target; 1034 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 2 && 1035 acb->msg[3] == MSG_WIDE_REQ) { 1036 #ifdef DEBUG 1037 if (siopngsync_debug) 1038 printf ("wide msg in: %02x %02x %02x %02x %02x %02x\n", 1039 acb->msg[0], acb->msg[1], acb->msg[2], 1040 acb->msg[3], acb->msg[4], acb->msg[5]); 1041 #endif 1042 sc->sc_sync[target].scntl3 &= ~(SIOP_SCNTL3_EWS); 1043 if (acb->msg[2] == 2 && 1044 acb->msg[3] == MSG_WIDE_REQ && 1045 acb->msg[4] != 0) { 1046 sc->sc_sync[target].scntl3 |= SIOP_SCNTL3_EWS; 1047 printf ("%s: target %d now wide %d\n", 1048 sc->sc_dev.dv_xname, target, 1049 acb->msg[4]); 1050 } 1051 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1052 if (sc->sc_sync[target].state == NEG_WAITW) { 1053 sc->sc_sync[target].state = NEG_SYNC; 1054 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1055 return(0); 1056 } 1057 rp->siop_dcntl |= SIOP_DCNTL_STD; 1058 sc->sc_sync[target].state = NEG_SYNC; 1059 return (0); 1060 } 1061 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 3 && 1062 acb->msg[3] == MSG_SYNC_REQ) { 1063 #ifdef DEBUG 1064 if (siopngsync_debug) 1065 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 1066 acb->msg[0], acb->msg[1], acb->msg[2], 1067 acb->msg[3], acb->msg[4], acb->msg[5]); 1068 #endif 1069 sc->sc_sync[target].sxfer = 0; 1070 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 1071 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 1072 if (acb->msg[2] == 3 && 1073 acb->msg[3] == MSG_SYNC_REQ && 1074 acb->msg[5] != 0) { 1075 #ifdef MAXTOR_KLUDGE 1076 /* 1077 * Kludge for my Maxtor XT8580S 1078 * It accepts whatever we request, even 1079 * though it won't work. So we ask for 1080 * a short period than we can handle. If 1081 * the device says it can do it, use 208ns. 1082 * If the device says it can do less than 1083 * 100ns, then we limit it to 100ns. 1084 */ 1085 if (acb->msg[4] && acb->msg[4] < 100 / 4) { 1086 #ifdef DEBUG 1087 printf ("%d: target %d wanted %dns period\n", 1088 sc->sc_dev.dv_xname, target, 1089 acb->msg[4] * 4); 1090 #endif 1091 if (acb->msg[4] == 50 / 4) 1092 acb->msg[4] = 208 / 4; 1093 else 1094 acb->msg[4] = 100 / 4; 1095 } 1096 #endif /* MAXTOR_KLUDGE */ 1097 printf ("%s: target %d now synchronous, period=%dns, offset=%d\n", 1098 sc->sc_dev.dv_xname, target, 1099 (acb->msg[4] == 12) ? 50 : acb->msg[4] * 4, 1100 acb->msg[5]); 1101 scsi_period_to_siopng (sc, target); 1102 } 1103 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1104 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1105 if (sc->sc_sync[target].state == NEG_WAITS) { 1106 sc->sc_sync[target].state = NEG_DONE; 1107 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1108 return(0); 1109 } 1110 rp->siop_dcntl |= SIOP_DCNTL_STD; 1111 sc->sc_sync[target].state = NEG_DONE; 1112 return (0); 1113 } 1114 /* XXX - not SDTR message */ 1115 } 1116 if (sist & SIOP_SIST_MA) { /* Phase mismatch */ 1117 #ifdef DEBUG 1118 ++siopngphmm; 1119 if (acb == NULL) 1120 printf("%s: Phase mismatch with no active command?\n", 1121 sc->sc_dev.dv_xname); 1122 #endif 1123 if (acb->iob_len) { 1124 int adjust; 1125 adjust = ((dfifo - (dbc & 0x7f)) & 0x7f); 1126 if (sstat0 & SIOP_SSTAT0_OLF) /* sstat0 SODL lsb */ 1127 ++adjust; 1128 if (sstat0 & SIOP_SSTAT0_ORF) /* sstat0 SODR lsb */ 1129 ++adjust; 1130 if (sstat2 & SIOP_SSTAT2_OLF1) /* sstat2 SODL msb */ 1131 ++adjust; 1132 if (sstat2 & SIOP_SSTAT2_ORF1) /* sstat2 SODR msb */ 1133 ++adjust; 1134 acb->iob_curlen = *((long *)&rp->siop_dcmd) & 0xffffff; 1135 acb->iob_curlen += adjust; 1136 acb->iob_curbuf = *((long *)&rp->siop_dnad) - adjust; 1137 #ifdef DEBUG 1138 if (siopng_debug & 0x100) { 1139 int i; 1140 printf ("Phase mismatch: curbuf %lx curlen %lx dfifo %x dbc %x sstat1 %x adjust %x sbcl %x starts %d acb %p\n", 1141 acb->iob_curbuf, acb->iob_curlen, dfifo, 1142 dbc, sstat1, adjust, rp->siop_sbcl, siopngstarts, acb); 1143 if (acb->ds.chain[1].datalen) { 1144 for (i = 0; acb->ds.chain[i].datalen; ++i) 1145 printf("chain[%d] addr %p len %lx\n", 1146 i, acb->ds.chain[i].databuf, 1147 acb->ds.chain[i].datalen); 1148 } 1149 } 1150 #endif 1151 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1152 } 1153 #ifdef DEBUG 1154 SIOP_TRACE('m',rp->siop_sbcl,(rp->siop_dsp>>8),rp->siop_dsp); 1155 if (siopng_debug & 9) 1156 printf ("Phase mismatch: %x dsp +%lx dcmd %lx\n", 1157 rp->siop_sbcl, 1158 rp->siop_dsp - sc->sc_scriptspa, 1159 *((long *)&rp->siop_dcmd)); 1160 #endif 1161 if ((rp->siop_sbcl & SIOP_REQ) == 0) { 1162 printf ("Phase mismatch: REQ not asserted! %02x dsp %lx\n", 1163 rp->siop_sbcl, rp->siop_dsp); 1164 #if defined(DEBUG) && defined(DDB) 1165 Debugger(); 1166 #endif 1167 } 1168 switch (rp->siop_sbcl & 7) { 1169 case 0: /* data out */ 1170 case 1: /* data in */ 1171 case 2: /* status */ 1172 case 3: /* command */ 1173 case 6: /* message in */ 1174 case 7: /* message out */ 1175 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1176 break; 1177 default: 1178 goto bad_phase; 1179 } 1180 return 0; 1181 } 1182 if (sist & SIOP_SIST_STO) { /* Select timed out */ 1183 #ifdef DEBUG 1184 if (acb == NULL) 1185 printf("%s: Select timeout with no active command?\n", 1186 sc->sc_dev.dv_xname); 1187 if (rp->siop_sbcl & SIOP_BSY) { 1188 printf ("ACK! siop was busy at timeout: rp %p script %p dsa %p\n", 1189 rp, &siopng_scripts, &acb->ds); 1190 printf(" sbcl %x sdid %x istat %x dstat %x sist %x\n", 1191 rp->siop_sbcl, rp->siop_sdid, istat, dstat, sist); 1192 if (!(rp->siop_sbcl & SIOP_BSY)) { 1193 printf ("Yikes, it's not busy now!\n"); 1194 #if 0 1195 *status = -1; 1196 if (sc->nexus_list.tqh_first) 1197 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1198 return 1; 1199 #endif 1200 } 1201 /* rp->siop_dcntl |= SIOP_DCNTL_STD;*/ 1202 return (0); 1203 #ifdef DDB 1204 Debugger(); 1205 #endif 1206 } 1207 #endif 1208 *status = -1; 1209 acb->xs->error = XS_SELTIMEOUT; 1210 if (sc->nexus_list.tqh_first) 1211 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1212 return 1; 1213 } 1214 if (acb) 1215 target = acb->xs->xs_periph->periph_target; 1216 else 1217 target = 7; 1218 if (sist & SIOP_SIST_UDC) { 1219 #ifdef DEBUG 1220 if (acb == NULL) 1221 printf("%s: Unexpected disconnect with no active command?\n", 1222 sc->sc_dev.dv_xname); 1223 printf ("%s: target %d disconnected unexpectedly\n", 1224 sc->sc_dev.dv_xname, target); 1225 siopng_dump_registers(sc); 1226 siopng_dump(sc); 1227 #endif 1228 #if 0 1229 siopngabort (sc, rp, "siopngchkintr"); 1230 #endif 1231 *status = STS_BUSY; 1232 if (sc->nexus_list.tqh_first) 1233 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1234 return (acb != NULL); 1235 } 1236 if (dstat & SIOP_DSTAT_SIR && (rp->siop_dsps == 0xff01 || 1237 rp->siop_dsps == 0xff02)) { 1238 #ifdef DEBUG 1239 if (siopng_debug & 0x100) 1240 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", 1241 sc->sc_dev.dv_xname, 1 << target, rp->siop_temp, 1242 rp->siop_temp ? rp->siop_temp - sc->sc_scriptspa : 0, 1243 acb->iob_curbuf, acb->iob_curlen, 1244 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen, dfifo, dbc, sstat1, siopngstarts, acb); 1245 #endif 1246 if (acb == NULL) { 1247 printf("%s: Disconnect with no active command?\n", 1248 sc->sc_dev.dv_xname); 1249 return (0); 1250 } 1251 /* 1252 * XXXX need to update iob_curbuf/iob_curlen to reflect 1253 * current data transferred. If device disconnected in 1254 * the middle of a DMA block, they should already be set 1255 * by the phase change interrupt. If the disconnect 1256 * occurs on a DMA block boundary, we have to figure out 1257 * which DMA block it was. 1258 */ 1259 if (acb->iob_len && rp->siop_temp) { 1260 int n = rp->siop_temp - sc->sc_scriptspa; 1261 1262 if (acb->iob_curlen && acb->iob_curlen != acb->ds.chain[0].datalen) 1263 printf("%s: iob_curbuf/len already set? n %x iob %lx/%lx chain[0] %p/%lx\n", 1264 sc->sc_dev.dv_xname, n, acb->iob_curbuf, acb->iob_curlen, 1265 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen); 1266 if (n < Ent_datain) 1267 n = (n - Ent_dataout) / 16; 1268 else 1269 n = (n - Ent_datain) / 16; 1270 if (n <= 0 && n > DMAMAXIO) 1271 printf("TEMP invalid %d\n", n); 1272 else { 1273 acb->iob_curbuf = (u_long)acb->ds.chain[n].databuf; 1274 acb->iob_curlen = acb->ds.chain[n].datalen; 1275 } 1276 #ifdef DEBUG 1277 if (siopng_debug & 0x100) { 1278 printf("%s: TEMP offset %d", sc->sc_dev.dv_xname, n); 1279 printf(" curbuf %lx curlen %lx\n", acb->iob_curbuf, 1280 acb->iob_curlen); 1281 } 1282 #endif 1283 } 1284 /* 1285 * If data transfer was interrupted by disconnect, iob_curbuf 1286 * and iob_curlen should reflect the point of interruption. 1287 * Adjust the DMA chain so that the data transfer begins 1288 * at the appropriate place upon reselection. 1289 * XXX This should only be done on save data pointer message? 1290 */ 1291 if (acb->iob_curlen) { 1292 int i, j; 1293 1294 #ifdef DEBUG 1295 if (siopng_debug & 0x100) 1296 printf ("%s: adjusting DMA chain\n", 1297 sc->sc_dev.dv_xname); 1298 if (rp->siop_dsps == 0xff02) 1299 printf ("%s: ID %02x disconnected without Save Data Pointers\n", 1300 sc->sc_dev.dv_xname, 1 << target); 1301 #endif 1302 for (i = 0; i < DMAMAXIO; ++i) { 1303 if (acb->ds.chain[i].datalen == 0) 1304 break; 1305 if (acb->iob_curbuf >= (long)acb->ds.chain[i].databuf && 1306 acb->iob_curbuf < (long)(acb->ds.chain[i].databuf + 1307 acb->ds.chain[i].datalen)) 1308 break; 1309 } 1310 if (i >= DMAMAXIO || acb->ds.chain[i].datalen == 0) { 1311 printf("couldn't find saved data pointer: "); 1312 printf("curbuf %lx curlen %lx i %d\n", 1313 acb->iob_curbuf, acb->iob_curlen, i); 1314 #ifdef DDB 1315 Debugger(); 1316 #endif 1317 } 1318 #ifdef DEBUG 1319 if (siopng_debug & 0x100) 1320 printf(" chain[0]: %p/%lx -> %lx/%lx\n", 1321 acb->ds.chain[0].databuf, 1322 acb->ds.chain[0].datalen, 1323 acb->iob_curbuf, 1324 acb->iob_curlen); 1325 #endif 1326 acb->ds.chain[0].databuf = (char *)acb->iob_curbuf; 1327 acb->ds.chain[0].datalen = acb->iob_curlen; 1328 for (j = 1, ++i; i < DMAMAXIO && acb->ds.chain[i].datalen; ++i, ++j) { 1329 #ifdef DEBUG 1330 if (siopng_debug & 0x100) 1331 printf(" chain[%d]: %p/%lx -> %p/%lx\n", j, 1332 acb->ds.chain[j].databuf, 1333 acb->ds.chain[j].datalen, 1334 acb->ds.chain[i].databuf, 1335 acb->ds.chain[i].datalen); 1336 #endif 1337 acb->ds.chain[j].databuf = acb->ds.chain[i].databuf; 1338 acb->ds.chain[j].datalen = acb->ds.chain[i].datalen; 1339 } 1340 if (j < DMAMAXIO) 1341 acb->ds.chain[j].datalen = 0; 1342 DCIAS(kvtop((caddr_t)&acb->ds.chain)); 1343 } 1344 ++sc->sc_tinfo[target].dconns; 1345 /* 1346 * add nexus to waiting list 1347 * clear nexus 1348 * try to start another command for another target/lun 1349 */ 1350 acb->status = sc->sc_flags & SIOP_INTSOFF; 1351 TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain); 1352 sc->sc_nexus = NULL; /* no current device */ 1353 /* start script to wait for reselect */ 1354 if (sc->sc_nexus == NULL) 1355 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1356 /* XXXX start another command ? */ 1357 if (sc->ready_list.tqh_first) 1358 siopng_sched(sc); 1359 #if 0 1360 else 1361 rp->siop_dcntl |= SIOP_DCNTL_STD; 1362 #endif 1363 return (0); 1364 } 1365 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff03) { 1366 int reselid = rp->siop_scratcha & 0x7f; 1367 int reselun = rp->siop_sfbr & 0x07; 1368 1369 sc->sc_sstat1 = rp->siop_sbcl; /* XXXX save current SBCL */ 1370 #ifdef DEBUG 1371 if (siopng_debug & 0x100) 1372 printf ("%s: target ID %02x reselected dsps %lx\n", 1373 sc->sc_dev.dv_xname, reselid, 1374 rp->siop_dsps); 1375 if ((rp->siop_sfbr & 0x80) == 0) 1376 printf("%s: Reselect message in was not identify: %x\n", 1377 sc->sc_dev.dv_xname, rp->siop_sfbr); 1378 #endif 1379 if (sc->sc_nexus) { 1380 #ifdef DEBUG 1381 if (siopng_debug & 0x100) 1382 printf ("%s: reselect ID %02x w/active\n", 1383 sc->sc_dev.dv_xname, reselid); 1384 #endif 1385 TAILQ_INSERT_HEAD(&sc->ready_list, sc->sc_nexus, chain); 1386 sc->sc_tinfo[sc->sc_nexus->xs->xs_periph->periph_target].lubusy 1387 &= ~(1 << sc->sc_nexus->xs->xs_periph->periph_lun); 1388 --sc->sc_active; 1389 } 1390 /* 1391 * locate acb of reselecting device 1392 * set sc->sc_nexus to acb 1393 */ 1394 for (acb = sc->nexus_list.tqh_first; acb; 1395 acb = acb->chain.tqe_next) { 1396 if (reselid != ((acb->ds.scsi_addr >> 16) & 0xff) || 1397 reselun != (acb->msgout[0] & 0x07)) 1398 continue; 1399 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 1400 sc->sc_nexus = acb; 1401 sc->sc_flags |= acb->status; 1402 acb->status = 0; 1403 DCIAS(kvtop(&acb->stat[0])); 1404 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 1405 rp->siop_sxfer = 1406 sc->sc_sync[acb->xs->xs_periph->periph_target].sxfer; 1407 #ifndef FIXME 1408 rp->siop_scntl3 = 1409 sc->sc_sync[acb->xs->xs_periph->periph_target].scntl3; 1410 #endif 1411 break; 1412 } 1413 if (acb == NULL) { 1414 printf("%s: target ID %02x reselect nexus_list %p\n", 1415 sc->sc_dev.dv_xname, reselid, 1416 sc->nexus_list.tqh_first); 1417 panic("unable to find reselecting device"); 1418 } 1419 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1420 rp->siop_temp = 0; 1421 rp->siop_dcntl |= SIOP_DCNTL_STD; 1422 return (0); 1423 } 1424 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff04) { 1425 #ifdef DEBUG 1426 u_short ctest2 = rp->siop_ctest2; 1427 1428 /* reselect was interrupted (by Sig_P or select) */ 1429 if (siopng_debug & 0x100 || 1430 (ctest2 & SIOP_CTEST2_SIGP) == 0) 1431 printf ("%s: reselect interrupted (Sig_P?) scntl1 %x ctest2 %x sfbr %x istat %x/%x\n", 1432 sc->sc_dev.dv_xname, rp->siop_scntl1, 1433 ctest2, rp->siop_sfbr, istat, rp->siop_istat); 1434 #endif 1435 /* XXX assumes it was not select */ 1436 if (sc->sc_nexus == NULL) { 1437 #ifdef DEBUG 1438 printf("%s: reselect interrupted, sc_nexus == NULL\n", 1439 sc->sc_dev.dv_xname); 1440 #if 0 1441 siopng_dump(sc); 1442 #ifdef DDB 1443 Debugger(); 1444 #endif 1445 #endif 1446 #endif 1447 rp->siop_dcntl |= SIOP_DCNTL_STD; 1448 return(0); 1449 } 1450 target = sc->sc_nexus->xs->xs_periph->periph_target; 1451 rp->siop_temp = 0; 1452 rp->siop_dsa = kvtop((caddr_t)&sc->sc_nexus->ds); 1453 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1454 #ifndef FIXME 1455 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1456 #endif 1457 rp->siop_dsp = sc->sc_scriptspa; 1458 return (0); 1459 } 1460 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff06) { 1461 if (acb == NULL) 1462 printf("%s: Bad message-in with no active command?\n", 1463 sc->sc_dev.dv_xname); 1464 /* Unrecognized message in byte */ 1465 dma_cachectl (&acb->msg[1],1); 1466 printf ("%s: Unrecognized message in data sfbr %x msg %x sbcl %x\n", 1467 sc->sc_dev.dv_xname, rp->siop_sfbr, acb->msg[1], rp->siop_sbcl); 1468 /* what should be done here? */ 1469 DCIAS(kvtop(&acb->msg[1])); 1470 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1471 return (0); 1472 } 1473 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0a) { 1474 /* Status phase wasn't followed by message in phase? */ 1475 printf ("%s: Status phase not followed by message in phase? sbcl %x sbdl %x\n", 1476 sc->sc_dev.dv_xname, rp->siop_sbcl, rp->siop_sbdl); 1477 if (rp->siop_sbcl == 0xa7) { 1478 /* It is now, just continue the script? */ 1479 rp->siop_dcntl |= SIOP_DCNTL_STD; 1480 return (0); 1481 } 1482 } 1483 if (sist == 0 && dstat & SIOP_DSTAT_SIR) { 1484 dma_cachectl (&acb->stat[0], 1); 1485 dma_cachectl (&acb->msg[0], 1); 1486 printf ("SIOP interrupt: %lx sts %x msg %x %x sbcl %x\n", 1487 rp->siop_dsps, acb->stat[0], acb->msg[0], acb->msg[1], 1488 rp->siop_sbcl); 1489 siopngreset (sc); 1490 *status = -1; 1491 return 0; /* siopngreset has cleaned up */ 1492 } 1493 if (sist & SIOP_SIST_SGE) 1494 printf ("SIOP: SCSI Gross Error\n"); 1495 if (sist & SIOP_SIST_PAR) 1496 printf ("SIOP: Parity Error\n"); 1497 if (dstat & SIOP_DSTAT_IID) 1498 printf ("SIOP: Invalid instruction detected\n"); 1499 bad_phase: 1500 /* 1501 * temporary panic for unhandled conditions 1502 * displays various things about the 53C720/770 status and registers 1503 * then panics. 1504 * XXXX need to clean this up to print out the info, reset, and continue 1505 */ 1506 printf ("siopngchkintr: target %x ds %p\n", target, &acb->ds); 1507 printf ("scripts %lx ds %x rp %x dsp %lx dcmd %lx\n", sc->sc_scriptspa, 1508 kvtop((caddr_t)&acb->ds), kvtop((caddr_t)rp), rp->siop_dsp, 1509 *((long *)&rp->siop_dcmd)); 1510 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %lx dsa %lx sbcl %x sts %x msg %x %x sfbr %x\n", 1511 istat, dstat, sist, rp->siop_dsps, rp->siop_dsa, 1512 rp->siop_sbcl, acb->stat[0], acb->msg[0], acb->msg[1], rp->siop_sfbr); 1513 #ifdef DEBUG 1514 if (siopng_debug & 0x20) 1515 panic("siopngchkintr: **** temp ****"); 1516 #endif 1517 #ifdef DDB 1518 Debugger (); 1519 #endif 1520 siopngreset (sc); /* hard reset */ 1521 *status = -1; 1522 return 0; /* siopngreset cleaned up */ 1523 } 1524 1525 void 1526 siopng_select(sc) 1527 struct siop_softc *sc; 1528 { 1529 siop_regmap_p rp; 1530 struct siop_acb *acb = sc->sc_nexus; 1531 1532 #ifdef DEBUG 1533 if (siopng_debug & 1) 1534 printf ("%s: select ", sc->sc_dev.dv_xname); 1535 #endif 1536 1537 rp = sc->sc_siopp; 1538 if (acb->xs->xs_control & XS_CTL_POLL || siopng_no_dma) { 1539 sc->sc_flags |= SIOP_INTSOFF; 1540 sc->sc_flags &= ~SIOP_INTDEFER; 1541 if ((rp->siop_istat & 0x08) == 0) { 1542 rp->siop_sien = 0; 1543 rp->siop_dien = 0; 1544 } 1545 #if 0 1546 } else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 1547 sc->sc_flags &= ~SIOP_INTSOFF; 1548 if ((rp->siop_istat & 0x08) == 0) { 1549 rp->siop_sien = sc->sc_sien; 1550 rp->siop_dien = sc->sc_dien; 1551 } 1552 #endif 1553 } 1554 #ifdef DEBUG 1555 if (siopng_debug & 1) 1556 printf ("siopng_select: target %x cmd %02x ds %p\n", 1557 acb->xs->xs_periph->periph_target, acb->cmd.opcode, 1558 &sc->sc_nexus->ds); 1559 #endif 1560 1561 siopng_start(sc, acb->xs->xs_periph->periph_target, 1562 acb->xs->xs_periph->periph_lun, 1563 (u_char *)&acb->cmd, acb->clen, acb->daddr, acb->dleft); 1564 1565 return; 1566 } 1567 1568 /* 1569 * 53C720/770 interrupt handler 1570 */ 1571 1572 void 1573 siopngintr (sc) 1574 register struct siop_softc *sc; 1575 { 1576 siop_regmap_p rp; 1577 u_char istat, dstat; 1578 u_short sist; 1579 int status; 1580 int s = splbio(); 1581 1582 istat = sc->sc_istat; 1583 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 1584 splx(s); 1585 return; 1586 } 1587 1588 /* Got a valid interrupt on this device */ 1589 rp = sc->sc_siopp; 1590 dstat = sc->sc_dstat; 1591 sist = sc->sc_sist; 1592 if (dstat & SIOP_DSTAT_SIR) 1593 sc->sc_intcode = rp->siop_dsps; 1594 sc->sc_istat = 0; 1595 #ifdef DEBUG 1596 if (siopng_debug & 1) 1597 printf ("%s: intr istat %x dstat %x sist %x\n", 1598 sc->sc_dev.dv_xname, istat, dstat, sist); 1599 if (!sc->sc_active) { 1600 printf ("%s: spurious interrupt? istat %x dstat %x sist %x nexus %p status %x\n", 1601 sc->sc_dev.dv_xname, istat, dstat, sist, 1602 sc->sc_nexus, sc->sc_nexus ? sc->sc_nexus->stat[0] : 0); 1603 } 1604 #endif 1605 1606 #ifdef DEBUG 1607 if (siopng_debug & 5) { 1608 DCIAS(kvtop(&sc->sc_nexus->stat[0])); 1609 printf ("%s: intr istat %x dstat %x sist %x dsps %lx sbcl %x sts %x msg %x\n", 1610 sc->sc_dev.dv_xname, istat, dstat, sist, 1611 rp->siop_dsps, rp->siop_sbcl, 1612 sc->sc_nexus->stat[0], sc->sc_nexus->msg[0]); 1613 } 1614 #endif 1615 if (sc->sc_flags & SIOP_INTDEFER) { 1616 sc->sc_flags &= ~(SIOP_INTDEFER | SIOP_INTSOFF); 1617 rp->siop_sien = sc->sc_sien; 1618 rp->siop_dien = sc->sc_dien; 1619 } 1620 if (siopng_checkintr (sc, istat, dstat, sist, &status)) { 1621 #if 1 1622 if (status == 0xff) 1623 printf ("siopngintr: status == 0xff\n"); 1624 #endif 1625 if ((sc->sc_flags & (SIOP_INTSOFF | SIOP_INTDEFER)) != SIOP_INTSOFF) { 1626 #if 0 1627 if (rp->siop_sbcl & SIOP_BSY) { 1628 printf ("%s: SCSI bus busy at completion", 1629 sc->sc_dev.dv_xname); 1630 printf(" targ %d sbcl %02x sfbr %x respid %02x dsp +%x\n", 1631 sc->sc_nexus->xs->xs_periph->periph_target, 1632 rp->siop_sbcl, rp->siop_sfbr, rp->siop_respid, 1633 rp->siop_dsp - sc->sc_scriptspa); 1634 } 1635 #endif 1636 siopng_scsidone(sc->sc_nexus, sc->sc_nexus ? 1637 sc->sc_nexus->stat[0] : -1); 1638 } 1639 } 1640 splx(s); 1641 } 1642 1643 /* 1644 * This is based on the Progressive Peripherals 33Mhz Zeus driver and will 1645 * not be correct for other 53c710 boards. 1646 * 1647 */ 1648 void 1649 scsi_period_to_siopng (sc, target) 1650 struct siop_softc *sc; 1651 int target; 1652 { 1653 int period, offset, sxfer, scntl3 = 0; 1654 1655 period = sc->sc_nexus->msg[4]; 1656 offset = sc->sc_nexus->msg[5]; 1657 #ifdef FIXME 1658 for (scntl3 = 1; scntl3 < 4; ++scntl3) { 1659 sxfer = (period * 4 - 1) / sc->sc_tcp[scntl3] - 3; 1660 if (sxfer >= 0 && sxfer <= 7) 1661 break; 1662 } 1663 if (scntl3 > 3) { 1664 printf("siopng sync: unable to compute sync params for period %dns\n", 1665 period * 4); 1666 /* 1667 * XXX need to pick a value we can do and renegotiate 1668 */ 1669 sxfer = scntl3 = 0; 1670 } else { 1671 sxfer = (sxfer << 4) | ((offset <= SIOP_MAX_OFFSET) ? 1672 offset : SIOP_MAX_OFFSET); 1673 #ifdef DEBUG_SYNC 1674 printf("siopng sync: params for period %dns: sxfer %x scntl3 %x", 1675 period * 4, sxfer, scntl3); 1676 printf(" actual period %dns\n", 1677 sc->sc_tcp[scntl3] * ((sxfer >> 4) + 4)); 1678 #endif /* DEBUG_SYNC */ 1679 } 1680 #else /* FIXME */ 1681 sxfer = offset <= SIOP_MAX_OFFSET ? offset : SIOP_MAX_OFFSET; 1682 sxfer |= 0x20; /* XXX XFERP: 5 */ 1683 #ifndef FIXME 1684 if (period <= (50 / 4)) /* XXX */ 1685 scntl3 = 0x95; /* Ultra, SCF: /1, CCF: /4 */ 1686 else if (period <= (100 / 4)) 1687 scntl3 = 0x35; /* SCF: /2, CCF: /4 */ 1688 else if (period <= (200 / 4)) 1689 scntl3 = 0x55; /* SCF: /4, CCF: /4 */ 1690 else 1691 scntl3 = 0xff; /* XXX ??? */ 1692 #else 1693 scntl3 = 5; 1694 #endif 1695 #endif 1696 sc->sc_sync[target].sxfer = sxfer; 1697 sc->sc_sync[target].scntl3 = scntl3 | 1698 (sc->sc_sync[target].scntl3 & SIOP_SCNTL3_EWS); 1699 #ifdef DEBUG_SYNC 1700 printf ("siopng sync: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1701 #endif 1702 } 1703 1704 void 1705 siopng_dump_registers(sc) 1706 struct siop_softc *sc; 1707 { 1708 siop_regmap_p rp = sc->sc_siopp; 1709 1710 printf(" scntl0 %02x scntl1 %02x scntl2 %02x scntl3 %02x\n", 1711 rp->siop_scntl0, rp->siop_scntl1, rp->siop_scntl2, rp->siop_scntl3); 1712 printf(" scid %02x sxfer %02x sdid %02x gpreg %02x\n", 1713 rp->siop_scid, rp->siop_sxfer, rp->siop_sdid, rp->siop_gpreg); 1714 printf(" sfbr %02x socl %02x ssid %02x sbcl %02x\n", 1715 rp->siop_sfbr, rp->siop_socl, rp->siop_ssid, rp->siop_sbcl); 1716 printf(" dstat %02x sstat0 %02x sstat1 %02x sstat2 %02x\n", 1717 rp->siop_dstat, rp->siop_sstat0, rp->siop_sstat1, rp->siop_sstat2); 1718 printf(" ctest0 %02x ctest1 %02x ctest2 %02x ctest3 %02x\n", 1719 rp->siop_ctest0, rp->siop_ctest1, rp->siop_ctest2, rp->siop_ctest3); 1720 printf(" dfifo %02x ctest4 %02x ctest5 %02x ctest6 %02x\n", 1721 0, rp->siop_ctest4, rp->siop_ctest5, rp->siop_ctest6); 1722 printf(" dcmd %02x dbc2 %02x dbc1 %02x dbc0 %02x\n", 1723 rp->siop_dcmd, rp->siop_dbc2, rp->siop_dbc1, rp->siop_dbc0); 1724 printf(" dmode %02x dien %02x dwt %02x dcntl %02x\n", 1725 rp->siop_dmode, rp->siop_dien, rp->siop_dwt, rp->siop_dcntl); 1726 printf(" stest0 %02x stest1 %02x stest2 %02x stest3 %02x\n", 1727 rp->siop_stest0, rp->siop_stest1, rp->siop_stest2, rp->siop_stest3); 1728 printf(" istat %02x sien %04x sist %04x respid %04x\n", 1729 rp->siop_istat, rp->siop_sien, rp->siop_sist, rp->siop_respid); 1730 printf(" sidl %04x sodl %04x sbdl %04x\n", 1731 rp->siop_sidl, rp->siop_sodl, rp->siop_sbdl); 1732 printf(" dsps %08lx dsp %08lx (+%lx)\n", 1733 rp->siop_dsps, rp->siop_dsp, rp->siop_dsp > sc->sc_scriptspa ? 1734 rp->siop_dsp - sc->sc_scriptspa : 0); 1735 printf(" dsa %08lx temp %08lx dnad %08lx\n", 1736 rp->siop_dsa, rp->siop_temp, rp->siop_dnad); 1737 printf(" scratcha %08lx scratchb %08lx adder %08lx\n", 1738 rp->siop_scratcha, rp->siop_scratchb, rp->siop_adder); 1739 } 1740 1741 #ifdef DEBUG 1742 1743 #if SIOP_TRACE_SIZE 1744 void 1745 siopng_dump_trace() 1746 { 1747 int i; 1748 1749 printf("siopng trace: next index %d\n", siopng_trix); 1750 i = siopng_trix; 1751 do { 1752 printf("%3d: '%c' %02x %02x %02x\n", i, siopng_trbuf[i], 1753 siopng_trbuf[i + 1], siopng_trbuf[i + 2], siopng_trbuf[i + 3]); 1754 i = (i + 4) & (SIOP_TRACE_SIZE - 1); 1755 } while (i != siopng_trix); 1756 } 1757 #endif 1758 1759 void 1760 siopng_dump_acb(acb) 1761 struct siop_acb *acb; 1762 { 1763 u_char *b = (u_char *) &acb->cmd; 1764 int i; 1765 1766 printf("acb@%p ", acb); 1767 if (acb->xs == NULL) { 1768 printf("<unused>\n"); 1769 return; 1770 } 1771 printf("(%d:%d) flags %2x clen %2d cmd ", 1772 acb->xs->xs_periph->periph_target, 1773 acb->xs->xs_periph->periph_lun, acb->flags, acb->clen); 1774 for (i = acb->clen; i; --i) 1775 printf(" %02x", *b++); 1776 printf("\n"); 1777 printf(" xs: %p data %p:%04x ", acb->xs, acb->xs->data, 1778 acb->xs->datalen); 1779 printf("va %p:%lx ", acb->iob_buf, acb->iob_len); 1780 printf("cur %lx:%lx\n", acb->iob_curbuf, acb->iob_curlen); 1781 } 1782 1783 void 1784 siopng_dump(sc) 1785 struct siop_softc *sc; 1786 { 1787 struct siop_acb *acb; 1788 siop_regmap_p rp = sc->sc_siopp; 1789 int s; 1790 int i; 1791 1792 s = splbio(); 1793 #if SIOP_TRACE_SIZE 1794 siopng_dump_trace(); 1795 #endif 1796 printf("%s@%p regs %p istat %x\n", 1797 sc->sc_dev.dv_xname, sc, rp, rp->siop_istat); 1798 if ((acb = sc->free_list.tqh_first) > 0) { 1799 printf("Free list:\n"); 1800 while (acb) { 1801 siopng_dump_acb(acb); 1802 acb = acb->chain.tqe_next; 1803 } 1804 } 1805 if ((acb = sc->ready_list.tqh_first) > 0) { 1806 printf("Ready list:\n"); 1807 while (acb) { 1808 siopng_dump_acb(acb); 1809 acb = acb->chain.tqe_next; 1810 } 1811 } 1812 if ((acb = sc->nexus_list.tqh_first) > 0) { 1813 printf("Nexus list:\n"); 1814 while (acb) { 1815 siopng_dump_acb(acb); 1816 acb = acb->chain.tqe_next; 1817 } 1818 } 1819 if (sc->sc_nexus) { 1820 printf("Nexus:\n"); 1821 siopng_dump_acb(sc->sc_nexus); 1822 } 1823 for (i = 0; i < 8; ++i) { 1824 if (sc->sc_tinfo[i].cmds > 2) { 1825 printf("tgt %d: cmds %d disc %d lubusy %x\n", 1826 i, sc->sc_tinfo[i].cmds, 1827 sc->sc_tinfo[i].dconns, 1828 sc->sc_tinfo[i].lubusy); 1829 } 1830 } 1831 splx(s); 1832 } 1833 #endif 1834
Indexes created Thu Oct 02 14:10:14 GMT 2025