siop2.c revision 1.20
1 /* $NetBSD: siop2.c,v 1.20 2003/04/01 21:26:33 thorpej 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/cdefs.h> 49 __KERNEL_RCSID(0, "$NetBSD: siop2.c,v 1.20 2003/04/01 21:26:33 thorpej Exp $"); 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/device.h> 54 #include <sys/disklabel.h> 55 #include <sys/dkstat.h> 56 #include <sys/buf.h> 57 #include <sys/malloc.h> 58 59 #include <uvm/uvm_extern.h> 60 61 #include <dev/scsipi/scsi_all.h> 62 #include <dev/scsipi/scsipi_all.h> 63 #include <dev/scsipi/scsiconf.h> 64 #include <machine/cpu.h> 65 #ifdef __m68k__ 66 #include <m68k/include/cacheops.h> 67 #endif 68 #include <amiga/amiga/custom.h> 69 #include <amiga/amiga/isr.h> 70 71 #define ARCH_720 72 73 #include <amiga/dev/siopreg.h> 74 #include <amiga/dev/siopvar.h> 75 76 /* 77 * SCSI delays 78 * In u-seconds, primarily for state changes on the SPC. 79 */ 80 #define SCSI_CMD_WAIT 500000 /* wait per step of 'immediate' cmds */ 81 #define SCSI_DATA_WAIT 500000 /* wait per data in/out step */ 82 #define SCSI_INIT_WAIT 500000 /* wait per step (both) during init */ 83 84 void siopng_select(struct siop_softc *); 85 void siopngabort(struct siop_softc *, siop_regmap_p, char *); 86 void siopngerror(struct siop_softc *, siop_regmap_p, u_char); 87 int siopng_checkintr(struct siop_softc *, u_char, u_char, u_short, int *); 88 void siopngreset(struct siop_softc *); 89 void siopngsetdelay(int); 90 void siopng_scsidone(struct siop_acb *, int); 91 void siopng_sched(struct siop_softc *); 92 void siopng_poll(struct siop_softc *, struct siop_acb *); 93 void siopngintr(struct siop_softc *); 94 void scsi_period_to_siopng(struct siop_softc *, int); 95 void siopng_start(struct siop_softc *, int, int, u_char *, int, u_char *, int); 96 void siopng_dump_acb(struct siop_acb *); 97 98 /* 53C720/770 script */ 99 100 #include <amiga/dev/siop2_script.out> 101 102 /* default to not inhibit sync negotiation on any drive */ 103 u_char siopng_inhibit_sync[16] = { 104 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 105 }; /* initialize, so patchable */ 106 107 u_char siopng_inhibit_wide[16] = { 108 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 109 }; /* initialize, so patchable */ 110 111 u_char siopng_allow_disc[16] = { 112 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 113 }; 114 115 int siopng_no_dma = 0; 116 117 int siopng_reset_delay = 250; /* delay after reset, in milleseconds */ 118 119 int siopng_cmd_wait = SCSI_CMD_WAIT; 120 int siopng_data_wait = SCSI_DATA_WAIT; 121 int siopng_init_wait = SCSI_INIT_WAIT; 122 123 #define DEBUG_SYNC 124 125 #ifdef DEBUG 126 /* 127 * 0x01 - full debug 128 * 0x02 - DMA chaining 129 * 0x04 - siopngintr 130 * 0x08 - phase mismatch 131 * 0x10 - <not used> 132 * 0x20 - panic on unhandled exceptions 133 * 0x100 - disconnect/reselect 134 */ 135 int siopng_debug = 0; 136 int siopngsync_debug = 0; 137 int siopngdma_hits = 0; 138 int siopngdma_misses = 0; 139 int siopngchain_ints = 0; 140 int siopngstarts = 0; 141 int siopngints = 0; 142 int siopngphmm = 0; 143 #define SIOP_TRACE_SIZE 128 144 #define SIOP_TRACE(a,b,c,d) \ 145 siopng_trbuf[siopng_trix] = (a); \ 146 siopng_trbuf[siopng_trix+1] = (b); \ 147 siopng_trbuf[siopng_trix+2] = (c); \ 148 siopng_trbuf[siopng_trix+3] = (d); \ 149 siopng_trix = (siopng_trix + 4) & (SIOP_TRACE_SIZE - 1); 150 u_char siopng_trbuf[SIOP_TRACE_SIZE]; 151 int siopng_trix; 152 void siopng_dump(struct siop_softc *); 153 void siopng_dump_trace(void); 154 #else 155 #define SIOP_TRACE(a,b,c,d) 156 #endif 157 158 159 static char *siopng_chips[] = { 160 "720", "720SE", "770", "0x3", 161 "810A", "0x5", "0x6", "0x7", 162 "0x8", "0x9", "0xA", "0xB", 163 "0xC", "0xD", "0xE", "0xF", 164 }; 165 166 /* 167 * default minphys routine for siopng based controllers 168 */ 169 void 170 siopng_minphys(struct buf *bp) 171 { 172 173 /* 174 * No max transfer at this level. 175 */ 176 minphys(bp); 177 } 178 179 /* 180 * used by specific siopng controller 181 * 182 */ 183 void 184 siopng_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, 185 void *arg) 186 { 187 struct scsipi_xfer *xs; 188 struct scsipi_periph *periph; 189 struct siop_acb *acb; 190 struct siop_softc *sc = (void *)chan->chan_adapter->adapt_dev; 191 int flags, s; 192 193 switch (req) { 194 case ADAPTER_REQ_RUN_XFER: 195 xs = arg; 196 periph = xs->xs_periph; 197 flags = xs->xs_control; 198 199 /* XXXX ?? */ 200 if (flags & XS_CTL_DATA_UIO) 201 panic("siopng: scsi data uio requested"); 202 203 /* XXXX ?? */ 204 if (sc->sc_nexus && flags & XS_CTL_POLL) 205 /* panic("siopng_scsicmd: busy");*/ 206 printf("siopng_scsicmd: busy\n"); 207 208 s = splbio(); 209 acb = sc->free_list.tqh_first; 210 if (acb) { 211 TAILQ_REMOVE(&sc->free_list, acb, chain); 212 } 213 splx(s); 214 215 #ifdef DIAGNOSTIC 216 /* 217 * This should never happen as we track the resources 218 * in the mid-layer. 219 */ 220 if (acb == NULL) { 221 scsipi_printaddr(periph); 222 printf("unable to allocate acb\n"); 223 panic("siopng_scsipi_request"); 224 } 225 #endif 226 acb->flags = ACB_ACTIVE; 227 acb->xs = xs; 228 bcopy(xs->cmd, &acb->cmd, xs->cmdlen); 229 acb->clen = xs->cmdlen; 230 acb->daddr = xs->data; 231 acb->dleft = xs->datalen; 232 233 s = splbio(); 234 TAILQ_INSERT_TAIL(&sc->ready_list, acb, chain); 235 236 if (sc->sc_nexus == NULL) 237 siopng_sched(sc); 238 239 splx(s); 240 241 if (flags & XS_CTL_POLL || siopng_no_dma) 242 siopng_poll(sc, acb); 243 return; 244 245 case ADAPTER_REQ_GROW_RESOURCES: 246 return; 247 248 case ADAPTER_REQ_SET_XFER_MODE: 249 return; 250 } 251 } 252 253 void 254 siopng_poll(struct siop_softc *sc, 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(struct siop_softc *sc) 318 { 319 struct scsipi_periph *periph; 320 struct siop_acb *acb; 321 int i; 322 323 #ifdef DEBUG 324 if (sc->sc_nexus) { 325 printf("%s: siopng_sched- nexus %p/%d ready %p/%d\n", 326 sc->sc_dev.dv_xname, sc->sc_nexus, 327 sc->sc_nexus->xs->xs_periph->periph_target, 328 sc->ready_list.tqh_first, 329 sc->ready_list.tqh_first->xs->xs_periph->periph_target); 330 return; 331 } 332 #endif 333 for (acb = sc->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) { 334 periph = acb->xs->xs_periph; 335 i = periph->periph_target; 336 if(!(sc->sc_tinfo[i].lubusy & (1 << periph->periph_lun))) { 337 struct siop_tinfo *ti = &sc->sc_tinfo[i]; 338 339 TAILQ_REMOVE(&sc->ready_list, acb, chain); 340 sc->sc_nexus = acb; 341 periph = acb->xs->xs_periph; 342 ti = &sc->sc_tinfo[periph->periph_target]; 343 ti->lubusy |= (1 << periph->periph_lun); 344 break; 345 } 346 } 347 348 if (acb == NULL) { 349 #ifdef DEBUGXXX 350 printf("%s: siopng_sched didn't find ready command\n", 351 sc->sc_dev.dv_xname); 352 #endif 353 return; 354 } 355 356 if (acb->xs->xs_control & XS_CTL_RESET) 357 siopngreset(sc); 358 359 #if 0 360 acb->cmd.bytes[0] |= periph->periph_lun << 5; /* XXXX */ 361 #endif 362 ++sc->sc_active; 363 siopng_select(sc); 364 } 365 366 void 367 siopng_scsidone(struct siop_acb *acb, int stat) 368 { 369 struct scsipi_xfer *xs; 370 struct scsipi_periph *periph; 371 struct siop_softc *sc; 372 int dosched = 0; 373 374 if (acb == NULL || (xs = acb->xs) == NULL) { 375 #ifdef DIAGNOSTIC 376 printf("siopng_scsidone: NULL acb or scsipi_xfer\n"); 377 #if defined(DEBUG) && defined(DDB) 378 Debugger(); 379 #endif 380 #endif 381 return; 382 } 383 periph = xs->xs_periph; 384 sc = (void *)periph->periph_channel->chan_adapter->adapt_dev; 385 386 xs->status = stat; 387 xs->resid = 0; /* XXXX */ 388 389 if (xs->error == XS_NOERROR) { 390 if (stat == SCSI_CHECK || stat == SCSI_BUSY) 391 xs->error = XS_BUSY; 392 } 393 394 /* 395 * Remove the ACB from whatever queue it's on. We have to do a bit of 396 * a hack to figure out which queue it's on. Note that it is *not* 397 * necessary to cdr down the ready queue, but we must cdr down the 398 * nexus queue and see if it's there, so we can mark the unit as no 399 * longer busy. This code is sickening, but it works. 400 */ 401 if (acb == sc->sc_nexus) { 402 sc->sc_nexus = NULL; 403 sc->sc_tinfo[periph->periph_target].lubusy &= 404 ~(1<<periph->periph_lun); 405 if (sc->ready_list.tqh_first) 406 dosched = 1; /* start next command */ 407 --sc->sc_active; 408 SIOP_TRACE('d','a',stat,0) 409 } else if (sc->ready_list.tqh_last == &acb->chain.tqe_next) { 410 TAILQ_REMOVE(&sc->ready_list, acb, chain); 411 SIOP_TRACE('d','r',stat,0) 412 } else { 413 register struct siop_acb *acb2; 414 for (acb2 = sc->nexus_list.tqh_first; acb2; 415 acb2 = acb2->chain.tqe_next) 416 if (acb2 == acb) { 417 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 418 sc->sc_tinfo[periph->periph_target].lubusy 419 &= ~(1<<periph->periph_lun); 420 --sc->sc_active; 421 break; 422 } 423 if (acb2) 424 ; 425 else if (acb->chain.tqe_next) { 426 TAILQ_REMOVE(&sc->ready_list, acb, chain); 427 --sc->sc_active; 428 } else { 429 printf("%s: can't find matching acb\n", 430 sc->sc_dev.dv_xname); 431 #ifdef DDB 432 /* Debugger(); */ 433 #endif 434 } 435 SIOP_TRACE('d','n',stat,0); 436 } 437 /* Put it on the free list. */ 438 acb->flags = ACB_FREE; 439 TAILQ_INSERT_HEAD(&sc->free_list, acb, chain); 440 441 sc->sc_tinfo[periph->periph_target].cmds++; 442 443 scsipi_done(xs); 444 445 if (dosched && sc->sc_nexus == NULL) 446 siopng_sched(sc); 447 } 448 449 void 450 siopngabort(register struct siop_softc *sc, siop_regmap_p rp, char *where) 451 { 452 #ifdef fix_this 453 int i; 454 #endif 455 456 printf ("%s: abort %s: dstat %02x, istat %02x sist %04x sien %04x sbcl %02x\n", 457 sc->sc_dev.dv_xname, 458 where, rp->siop_dstat, rp->siop_istat, rp->siop_sist, 459 rp->siop_sien, rp->siop_sbcl); 460 siopng_dump_registers(sc); 461 462 if (sc->sc_active > 0) { 463 #ifdef TODO 464 SET_SBIC_cmd (rp, SBIC_CMD_ABORT); 465 WAIT_CIP (rp); 466 467 GET_SBIC_asr (rp, asr); 468 if (asr & (SBIC_ASR_BSY|SBIC_ASR_LCI)) 469 { 470 /* ok, get more drastic.. */ 471 472 SET_SBIC_cmd (rp, SBIC_CMD_RESET); 473 delay(25); 474 SBIC_WAIT(rp, SBIC_ASR_INT, 0); 475 GET_SBIC_csr (rp, csr); /* clears interrupt also */ 476 477 return; 478 } 479 480 do 481 { 482 SBIC_WAIT (rp, SBIC_ASR_INT, 0); 483 GET_SBIC_csr (rp, csr); 484 } 485 while ((csr != SBIC_CSR_DISC) && (csr != SBIC_CSR_DISC_1) 486 && (csr != SBIC_CSR_CMD_INVALID)); 487 #endif 488 489 /* lets just hope it worked.. */ 490 #ifdef fix_this 491 for (i = 0; i < 2; ++i) { 492 if (sc->sc_iob[i].sc_xs && &sc->sc_iob[i] != 493 sc->sc_cur) { 494 printf ("siopngabort: cleanup!\n"); 495 sc->sc_iob[i].sc_xs = NULL; 496 } 497 } 498 #endif /* fix_this */ 499 /* sc->sc_active = 0; */ 500 } 501 } 502 503 void 504 siopnginitialize(struct siop_softc *sc) 505 { 506 int i; 507 u_int inhibit_sync; 508 extern u_long scsi_nosync; 509 extern int shift_nosync; 510 511 /* 512 * Need to check that scripts is on a long word boundary 513 * Also should verify that dev doesn't span non-contiguous 514 * physical pages. 515 */ 516 sc->sc_scriptspa = kvtop((caddr_t)siopng_scripts); 517 518 /* 519 * malloc sc_acb to ensure that DS is on a long word boundary. 520 */ 521 522 MALLOC(sc->sc_acb, struct siop_acb *, 523 sizeof(struct siop_acb) * SIOP_NACB, M_DEVBUF, M_NOWAIT); 524 if (sc->sc_acb == NULL) 525 panic("siopnginitialize: ACB malloc failed!"); 526 527 sc->sc_tcp[1] = 1000 / sc->sc_clock_freq; 528 sc->sc_tcp[2] = 1500 / sc->sc_clock_freq; 529 sc->sc_tcp[3] = 2000 / sc->sc_clock_freq; 530 sc->sc_minsync = sc->sc_tcp[1]; /* in 4ns units */ 531 if (sc->sc_minsync < 25) 532 sc->sc_minsync = 25; 533 sc->sc_minsync >>= 1; /* Using clock doubler, allow Ultra */ 534 if (sc->sc_clock_freq <= 25) { 535 sc->sc_dcntl |= 0x80; /* SCLK/1 */ 536 sc->sc_tcp[0] = sc->sc_tcp[1]; 537 } else if (sc->sc_clock_freq <= 37) { 538 sc->sc_dcntl |= 0x40; /* SCLK/1.5 */ 539 sc->sc_tcp[0] = sc->sc_tcp[2]; 540 } else if (sc->sc_clock_freq <= 50) { 541 sc->sc_dcntl |= 0x00; /* SCLK/2 */ 542 sc->sc_tcp[0] = sc->sc_tcp[3]; 543 } else { 544 sc->sc_dcntl |= 0xc0; /* SCLK/3 */ 545 sc->sc_tcp[0] = 3000 / sc->sc_clock_freq; 546 } 547 548 if (scsi_nosync) { 549 inhibit_sync = (scsi_nosync >> shift_nosync) & 0xffff; 550 shift_nosync += 16; /* XXX maxtarget */ 551 #ifdef DEBUG 552 if (inhibit_sync) 553 printf("%s: Inhibiting synchronous transfer %02x\n", 554 sc->sc_dev.dv_xname, inhibit_sync); 555 #endif 556 for (i = 0; i < 16; ++i) /* XXX maxtarget */ 557 if (inhibit_sync & (1 << i)) 558 siopng_inhibit_sync[i] = 1; 559 } 560 561 siopngreset (sc); 562 } 563 564 void 565 siopngreset(struct siop_softc *sc) 566 { 567 siop_regmap_p rp; 568 u_int i, s; 569 u_short dummy; 570 struct siop_acb *acb; 571 572 rp = sc->sc_siopp; 573 574 if (sc->sc_flags & SIOP_ALIVE) 575 siopngabort(sc, rp, "reset"); 576 577 printf("%s: ", sc->sc_dev.dv_xname); /* XXXX */ 578 579 s = splbio(); 580 581 /* 582 * Reset the chip 583 * XXX - is this really needed? 584 */ 585 rp->siop_istat |= SIOP_ISTAT_ABRT; /* abort current script */ 586 rp->siop_istat |= SIOP_ISTAT_RST; /* reset chip */ 587 rp->siop_istat &= ~SIOP_ISTAT_RST; 588 /* 589 * Reset SCSI bus (do we really want this?) 590 */ 591 rp->siop_sien = 0; 592 rp->siop_scntl1 |= SIOP_SCNTL1_RST; 593 delay(1); 594 rp->siop_scntl1 &= ~SIOP_SCNTL1_RST; 595 596 /* 597 * Set up various chip parameters 598 */ 599 rp->siop_stest1 |= SIOP_STEST1_DBLEN; /* SCLK doubler enable */ 600 delay(20); 601 rp->siop_stest3 |= SIOP_STEST3_HSC; /* Halt SCSI clock */ 602 rp->siop_scntl3 = 0x15; /* SCF/CCF*/ 603 rp->siop_stest1 |= SIOP_STEST1_DBLSEL; /* SCLK doubler select */ 604 rp->siop_stest3 &= ~SIOP_STEST3_HSC; /* Clear Halt SCSI clock */ 605 rp->siop_scntl0 = SIOP_ARB_FULL | /*SIOP_SCNTL0_EPC |*/ SIOP_SCNTL0_EPG; 606 rp->siop_dcntl = sc->sc_dcntl; 607 rp->siop_dmode = 0xc0; /* XXX burst length */ 608 rp->siop_sien = 0x00; /* don't enable interrupts yet */ 609 rp->siop_dien = 0x00; /* don't enable interrupts yet */ 610 rp->siop_scid = sc->sc_channel.chan_id | 611 SIOP_SCID_RRE | SIOP_SCID_SRE; 612 rp->siop_respid = 1 << sc->sc_channel.chan_id; 613 rp->siop_dwt = 0x00; 614 rp->siop_stime0 = 0x0c; /* XXXXX check */ 615 616 /* will need to re-negotiate sync xfers */ 617 bzero(&sc->sc_sync, sizeof (sc->sc_sync)); 618 619 i = rp->siop_istat; 620 if (i & SIOP_ISTAT_SIP) 621 dummy = rp->siop_sist; 622 if (i & SIOP_ISTAT_DIP) 623 dummy = rp->siop_dstat; 624 625 splx (s); 626 627 delay (siopng_reset_delay * 1000); 628 629 /* 630 * is lower half unterminated? 631 */ 632 if ((rp->siop_sbdl & 0x00ff) == 0x00ff) { 633 printf(" no SCSI termination, host adapter deactivated.\n"); 634 sc->sc_channel.chan_ntargets = 0; /* XXX */ 635 sc->sc_flags &= ~(SIOP_ALIVE|SIOP_INTDEFER|SIOP_INTSOFF); 636 /* disable SCSI and DMA interrupts */ 637 sc->sc_sien = 0; 638 sc->sc_dien = 0; 639 rp->siop_sien = sc->sc_sien; 640 rp->siop_dien = sc->sc_dien; 641 642 return; 643 } 644 645 /* 646 * Check if upper half of SCSI bus is unterminated, and disallow 647 * disconnections if it appears to be unterminated. 648 */ 649 if ((rp->siop_sbdl & 0xff00) == 0xff00) { 650 printf(" NO WIDE TERM"); 651 /* XXX need to restrict maximum target ID as well? */ 652 sc->sc_channel.chan_ntargets = 8; 653 for (i = 0; i < 16; ++i) { 654 siopng_allow_disc[i] = 0; 655 siopng_inhibit_wide[i] |= 0x80; 656 } 657 } 658 659 printf("siopng type %s id %d reset V%d\n", 660 siopng_chips[rp->siop_macntl>>4], 661 sc->sc_channel.chan_ntargets, 662 rp->siop_ctest3 >> 4); 663 664 if ((sc->sc_flags & SIOP_ALIVE) == 0) { 665 TAILQ_INIT(&sc->ready_list); 666 TAILQ_INIT(&sc->nexus_list); 667 TAILQ_INIT(&sc->free_list); 668 sc->sc_nexus = NULL; 669 acb = sc->sc_acb; 670 bzero(acb, sizeof(struct siop_acb) * SIOP_NACB); 671 for (i = 0; i < SIOP_NACB; i++) { 672 TAILQ_INSERT_TAIL(&sc->free_list, acb, chain); 673 acb++; 674 } 675 bzero(sc->sc_tinfo, sizeof(sc->sc_tinfo)); 676 } else { 677 if (sc->sc_nexus != NULL) { 678 sc->sc_nexus->xs->error = XS_RESET; 679 siopng_scsidone(sc->sc_nexus, sc->sc_nexus->stat[0]); 680 } 681 while ((acb = sc->nexus_list.tqh_first) > 0) { 682 acb->xs->error = XS_RESET; 683 siopng_scsidone(acb, acb->stat[0]); 684 } 685 } 686 687 sc->sc_flags |= SIOP_ALIVE; 688 sc->sc_flags &= ~(SIOP_INTDEFER|SIOP_INTSOFF); 689 /* enable SCSI and DMA interrupts */ 690 sc->sc_sien = SIOP_SIEN_MA | SIOP_SIEN_STO | /*SIOP_SIEN_GEN |*/ 691 /*SIOP_SIEN_SEL |*/ SIOP_SIEN_SGE | SIOP_SIEN_UDC | 692 SIOP_SIEN_RST | SIOP_SIEN_PAR; 693 sc->sc_dien = SIOP_DIEN_BF | SIOP_DIEN_ABRT | SIOP_DIEN_SIR | 694 /*SIOP_DIEN_WTD |*/ SIOP_DIEN_IID; 695 rp->siop_sien = sc->sc_sien; 696 rp->siop_dien = sc->sc_dien; 697 /*siopng_dump_registers(sc);*/ 698 } 699 700 /* 701 * Setup Data Storage for 53C720/770 and start SCRIPTS processing 702 */ 703 704 void 705 siopng_start(struct siop_softc *sc, int target, int lun, u_char *cbuf, 706 int clen, u_char *buf, int len) 707 { 708 siop_regmap_p rp = sc->sc_siopp; 709 int nchain; 710 int count, tcount; 711 char *addr, *dmaend; 712 struct siop_acb *acb = sc->sc_nexus; 713 #ifdef DEBUG 714 int i; 715 #endif 716 717 #ifdef DEBUG 718 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 719 printf ("ACK! siopng was busy: rp %p script %p dsa %p active %ld\n", 720 rp, &siopng_scripts, &acb->ds, sc->sc_active); 721 printf ("istat %02x sfbr %02x respid %02x sien %04x dien %02x\n", 722 rp->siop_istat, rp->siop_sfbr, rp->siop_respid, 723 rp->siop_sien, rp->siop_dien); 724 #ifdef DDB 725 /*Debugger();*/ 726 #endif 727 } 728 #endif 729 acb->msgout[0] = MSG_IDENTIFY | lun; 730 if (siopng_allow_disc[target] & 2 || 731 (siopng_allow_disc[target] && len == 0)) 732 acb->msgout[0] = MSG_IDENTIFY_DR | lun; 733 acb->status = 0; 734 acb->stat[0] = -1; 735 acb->msg[0] = -1; 736 acb->ds.scsi_addr = (target << 16) | (sc->sc_sync[target].sxfer << 8) | 737 (sc->sc_sync[target].scntl3 << 24); 738 acb->ds.idlen = 1; 739 acb->ds.idbuf = (char *) kvtop(&acb->msgout[0]); 740 acb->ds.cmdlen = clen; 741 acb->ds.cmdbuf = (char *) kvtop(cbuf); 742 acb->ds.stslen = 1; 743 acb->ds.stsbuf = (char *) kvtop(&acb->stat[0]); 744 acb->ds.msglen = 1; 745 acb->ds.msgbuf = (char *) kvtop(&acb->msg[0]); 746 acb->msg[1] = -1; 747 acb->ds.msginlen = 1; 748 acb->ds.extmsglen = 1; 749 acb->ds.synmsglen = 3; 750 acb->ds.msginbuf = acb->ds.msgbuf + 1; 751 acb->ds.extmsgbuf = acb->ds.msginbuf + 1; 752 acb->ds.synmsgbuf = acb->ds.extmsgbuf + 1; 753 bzero(&acb->ds.chain, sizeof (acb->ds.chain)); 754 755 if (sc->sc_sync[target].state == NEG_WIDE) { 756 if (siopng_inhibit_wide[target]) { 757 sc->sc_sync[target].state = NEG_SYNC; 758 sc->sc_sync[target].scntl3 &= ~SIOP_SCNTL3_EWS; 759 #ifdef DEBUG 760 if (siopngsync_debug) 761 printf ("Forcing target %d narrow\n", target); 762 #endif 763 } 764 else { 765 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 766 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 767 acb->msg[2] = -1; 768 acb->msgout[1] = MSG_EXT_MESSAGE; 769 acb->msgout[2] = 2; 770 acb->msgout[3] = MSG_WIDE_REQ; 771 acb->msgout[4] = 1; 772 acb->ds.idlen = 5; 773 acb->ds.synmsglen = 2; 774 sc->sc_sync[target].state = NEG_WAITW; 775 #ifdef DEBUG 776 if (siopngsync_debug) 777 printf("Sending wide request to target %d\n", target); 778 #endif 779 } 780 } 781 if (sc->sc_sync[target].state == NEG_SYNC) { 782 if (siopng_inhibit_sync[target]) { 783 sc->sc_sync[target].state = NEG_DONE; 784 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 785 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 786 sc->sc_sync[target].sxfer = 0; 787 #ifdef DEBUG 788 if (siopngsync_debug) 789 printf ("Forcing target %d asynchronous\n", target); 790 #endif 791 } 792 else { 793 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 794 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 795 acb->msg[2] = -1; 796 acb->msgout[1] = MSG_EXT_MESSAGE; 797 acb->msgout[2] = 3; 798 acb->msgout[3] = MSG_SYNC_REQ; 799 #ifdef MAXTOR_SYNC_KLUDGE 800 acb->msgout[4] = 50 / 4; /* ask for ridiculous period */ 801 #else 802 acb->msgout[4] = sc->sc_minsync; 803 #endif 804 acb->msgout[5] = SIOP_MAX_OFFSET; 805 acb->ds.idlen = 6; 806 sc->sc_sync[target].state = NEG_WAITS; 807 #ifdef DEBUG 808 if (siopngsync_debug) 809 printf ("Sending sync request to target %d\n", target); 810 #endif 811 } 812 } 813 814 /* 815 * Build physical DMA addresses for scatter/gather I/O 816 */ 817 acb->iob_buf = buf; 818 acb->iob_len = len; 819 acb->iob_curbuf = acb->iob_curlen = 0; 820 nchain = 0; 821 count = len; 822 addr = buf; 823 dmaend = NULL; 824 while (count > 0) { 825 acb->ds.chain[nchain].databuf = (char *) kvtop (addr); 826 if (count < (tcount = PAGE_SIZE - ((int) addr & PGOFSET))) 827 tcount = count; 828 829 #if DEBUG_ONLY_IF_DESPERATE 830 printf("chain[%d]: count %d tcount %d vaddr %p paddr %p\n", 831 nchain, count, tcount, addr, 832 acb->ds.chain[nchain].databuf); 833 #endif 834 acb->ds.chain[nchain].datalen = tcount; 835 addr += tcount; 836 count -= tcount; 837 if (acb->ds.chain[nchain].databuf == dmaend) { 838 dmaend += acb->ds.chain[nchain].datalen; 839 acb->ds.chain[nchain].datalen = 0; 840 acb->ds.chain[--nchain].datalen += tcount; 841 #ifdef DEBUG 842 ++siopngdma_hits; 843 #endif 844 } 845 else { 846 dmaend = acb->ds.chain[nchain].databuf + 847 acb->ds.chain[nchain].datalen; 848 acb->ds.chain[nchain].datalen = tcount; 849 #ifdef DEBUG 850 if (nchain) /* Don't count miss on first one */ 851 ++siopngdma_misses; 852 #endif 853 } 854 ++nchain; 855 } 856 #ifdef DEBUG 857 if (nchain != 1 && len != 0 && siopng_debug & 3) { 858 printf ("DMA chaining set: %d\n", nchain); 859 for (i = 0; i < nchain; ++i) { 860 printf (" [%d] %8p %lx\n", i, acb->ds.chain[i].databuf, 861 acb->ds.chain[i].datalen); 862 } 863 } 864 #endif 865 866 /* push data cache for all data the 53c720/770 needs to access */ 867 dma_cachectl ((caddr_t)acb, sizeof (struct siop_acb)); 868 dma_cachectl (cbuf, clen); 869 if (buf != NULL && len != 0) 870 dma_cachectl (buf, len); 871 #ifdef DEBUG 872 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 873 printf ("ACK! siopng was busy at start: rp %p script %p dsa %p active %ld\n", 874 rp, &siopng_scripts, &acb->ds, sc->sc_active); 875 #ifdef DDB 876 /*Debugger();*/ 877 #endif 878 } 879 #endif 880 if (sc->nexus_list.tqh_first == NULL) { 881 if (rp->siop_istat & SIOP_ISTAT_CON) 882 printf("%s: siopng_select while connected?\n", 883 sc->sc_dev.dv_xname); 884 rp->siop_temp = 0; 885 #ifndef FIXME 886 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 887 #endif 888 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 889 rp->siop_dsp = sc->sc_scriptspa; 890 SIOP_TRACE('s',1,0,0) 891 } else { 892 if ((rp->siop_istat & SIOP_ISTAT_CON) == 0) { 893 rp->siop_istat = SIOP_ISTAT_SIGP; 894 SIOP_TRACE('s',2,0,0); 895 } 896 else { 897 SIOP_TRACE('s',3,rp->siop_istat,0); 898 } 899 } 900 #ifdef DEBUG 901 ++siopngstarts; 902 #endif 903 } 904 905 /* 906 * Process a DMA or SCSI interrupt from the 53C720/770 SIOP 907 */ 908 909 int 910 siopng_checkintr(struct siop_softc *sc, u_char istat, u_char dstat, 911 u_short sist, int *status) 912 { 913 siop_regmap_p rp = sc->sc_siopp; 914 struct siop_acb *acb = sc->sc_nexus; 915 int target = 0; 916 int dfifo, dbc, sstat0, sstat1, sstat2; 917 918 dfifo = rp->siop_dfifo; 919 dbc = rp->siop_dbc0; 920 sstat0 = rp->siop_sstat0; 921 sstat1 = rp->siop_sstat1; 922 sstat2 = rp->siop_sstat2; 923 rp->siop_ctest3 |= SIOP_CTEST8_CLF; 924 while ((rp->siop_ctest1 & SIOP_CTEST1_FMT) != SIOP_CTEST1_FMT) 925 ; 926 rp->siop_ctest3 &= ~SIOP_CTEST8_CLF; 927 #ifdef DEBUG 928 ++siopngints; 929 #if 0 930 if (siopng_debug & 0x100) { 931 DCIAS(&acb->stat[0]); /* XXX */ 932 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %x sbcl %x sts %x msg %x\n", 933 istat, dstat, sist, rp->siop_dsps, rp->siop_sbcl, acb->stat[0], acb->msg[0]); 934 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 935 acb->msg[0], acb->msg[1], acb->msg[2], 936 acb->msg[3], acb->msg[4], acb->msg[5]); 937 } 938 #endif 939 if (rp->siop_dsp && (rp->siop_dsp < sc->sc_scriptspa || 940 rp->siop_dsp >= sc->sc_scriptspa + sizeof(siopng_scripts))) { 941 printf ("%s: dsp not within script dsp %lx scripts %lx:%lx", 942 sc->sc_dev.dv_xname, rp->siop_dsp, sc->sc_scriptspa, 943 sc->sc_scriptspa + sizeof(siopng_scripts)); 944 printf(" istat %x dstat %x sist %x\n", 945 istat, dstat, sist); 946 #ifdef DDB 947 Debugger(); 948 #endif 949 } 950 #endif 951 SIOP_TRACE('i',dstat,istat,(istat&SIOP_ISTAT_DIP)?rp->siop_dsps&0xff:sist); 952 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff00) { 953 /* Normal completion status, or check condition */ 954 #ifdef DEBUG 955 if (rp->siop_dsa != kvtop((caddr_t)&acb->ds)) { 956 printf ("siopng: invalid dsa: %lx %x\n", rp->siop_dsa, 957 kvtop((caddr_t)&acb->ds)); 958 panic("*** siopng DSA invalid ***"); 959 } 960 #endif 961 target = acb->xs->xs_periph->periph_target; 962 if (sc->sc_sync[target].state == NEG_WAITW) { 963 if (acb->msg[1] == 0xff) 964 printf ("%s: target %d ignored wide request\n", 965 sc->sc_dev.dv_xname, target); 966 else if (acb->msg[1] == MSG_REJECT) 967 printf ("%s: target %d rejected wide request\n", 968 sc->sc_dev.dv_xname, target); 969 else { 970 printf("%s: target %d (wide) %02x %02x %02x %02x\n", 971 sc->sc_dev.dv_xname, target, acb->msg[1], 972 acb->msg[2], acb->msg[3], acb->msg[4]); 973 if (acb->msg[1] == MSG_EXT_MESSAGE && 974 acb->msg[2] == 2 && 975 acb->msg[3] == MSG_WIDE_REQ) 976 sc->sc_sync[target].scntl3 = acb->msg[4] ? 977 sc->sc_sync[target].scntl3 | SIOP_SCNTL3_EWS : 978 sc->sc_sync[target].scntl3 & ~SIOP_SCNTL3_EWS; 979 } 980 sc->sc_sync[target].state = NEG_SYNC; 981 } 982 if (sc->sc_sync[target].state == NEG_WAITS) { 983 if (acb->msg[1] == 0xff) 984 printf ("%s: target %d ignored sync request\n", 985 sc->sc_dev.dv_xname, target); 986 else if (acb->msg[1] == MSG_REJECT) 987 printf ("%s: target %d rejected sync request\n", 988 sc->sc_dev.dv_xname, target); 989 else 990 /* XXX - need to set sync transfer parameters */ 991 printf("%s: target %d (sync) %02x %02x %02x\n", 992 sc->sc_dev.dv_xname, target, acb->msg[1], 993 acb->msg[2], acb->msg[3]); 994 sc->sc_sync[target].state = NEG_DONE; 995 } 996 dma_cachectl(&acb->stat[0], 1); 997 *status = acb->stat[0]; 998 #ifdef DEBUG 999 if (rp->siop_sbcl & SIOP_BSY) { 1000 /*printf ("ACK! siop was busy at end: rp %x script %x dsa %x\n", 1001 rp, &siopng_scripts, &acb->ds);*/ 1002 #ifdef DDB 1003 /*Debugger();*/ 1004 #endif 1005 } 1006 if (acb->msg[0] != 0x00) 1007 printf("%s: message was not COMMAND COMPLETE: %x\n", 1008 sc->sc_dev.dv_xname, acb->msg[0]); 1009 #endif 1010 if (sc->nexus_list.tqh_first) 1011 rp->siop_dcntl |= SIOP_DCNTL_STD; 1012 return 1; 1013 } 1014 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0b) { 1015 target = acb->xs->xs_periph->periph_target; 1016 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 2 && 1017 acb->msg[3] == MSG_WIDE_REQ) { 1018 #ifdef DEBUG 1019 if (siopngsync_debug) 1020 printf ("wide msg in: %02x %02x %02x %02x %02x %02x\n", 1021 acb->msg[0], acb->msg[1], acb->msg[2], 1022 acb->msg[3], acb->msg[4], acb->msg[5]); 1023 #endif 1024 sc->sc_sync[target].scntl3 &= ~(SIOP_SCNTL3_EWS); 1025 if (acb->msg[2] == 2 && 1026 acb->msg[3] == MSG_WIDE_REQ && 1027 acb->msg[4] != 0) { 1028 sc->sc_sync[target].scntl3 |= SIOP_SCNTL3_EWS; 1029 printf ("%s: target %d now wide %d\n", 1030 sc->sc_dev.dv_xname, target, 1031 acb->msg[4]); 1032 } 1033 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1034 if (sc->sc_sync[target].state == NEG_WAITW) { 1035 sc->sc_sync[target].state = NEG_SYNC; 1036 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1037 return(0); 1038 } 1039 rp->siop_dcntl |= SIOP_DCNTL_STD; 1040 sc->sc_sync[target].state = NEG_SYNC; 1041 return (0); 1042 } 1043 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 3 && 1044 acb->msg[3] == MSG_SYNC_REQ) { 1045 #ifdef DEBUG 1046 if (siopngsync_debug) 1047 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 1048 acb->msg[0], acb->msg[1], acb->msg[2], 1049 acb->msg[3], acb->msg[4], acb->msg[5]); 1050 #endif 1051 sc->sc_sync[target].sxfer = 0; 1052 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 1053 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 1054 if (acb->msg[2] == 3 && 1055 acb->msg[3] == MSG_SYNC_REQ && 1056 acb->msg[5] != 0) { 1057 #ifdef MAXTOR_KLUDGE 1058 /* 1059 * Kludge for my Maxtor XT8580S 1060 * It accepts whatever we request, even 1061 * though it won't work. So we ask for 1062 * a short period than we can handle. If 1063 * the device says it can do it, use 208ns. 1064 * If the device says it can do less than 1065 * 100ns, then we limit it to 100ns. 1066 */ 1067 if (acb->msg[4] && acb->msg[4] < 100 / 4) { 1068 #ifdef DEBUG 1069 printf ("%d: target %d wanted %dns period\n", 1070 sc->sc_dev.dv_xname, target, 1071 acb->msg[4] * 4); 1072 #endif 1073 if (acb->msg[4] == 50 / 4) 1074 acb->msg[4] = 208 / 4; 1075 else 1076 acb->msg[4] = 100 / 4; 1077 } 1078 #endif /* MAXTOR_KLUDGE */ 1079 printf ("%s: target %d now synchronous, period=%dns, offset=%d\n", 1080 sc->sc_dev.dv_xname, target, 1081 (acb->msg[4] == 12) ? 50 : acb->msg[4] * 4, 1082 acb->msg[5]); 1083 scsi_period_to_siopng (sc, target); 1084 } 1085 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1086 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1087 if (sc->sc_sync[target].state == NEG_WAITS) { 1088 sc->sc_sync[target].state = NEG_DONE; 1089 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1090 return(0); 1091 } 1092 rp->siop_dcntl |= SIOP_DCNTL_STD; 1093 sc->sc_sync[target].state = NEG_DONE; 1094 return (0); 1095 } 1096 /* XXX - not SDTR message */ 1097 } 1098 if (sist & SIOP_SIST_MA) { /* Phase mismatch */ 1099 #ifdef DEBUG 1100 ++siopngphmm; 1101 if (acb == NULL) 1102 printf("%s: Phase mismatch with no active command?\n", 1103 sc->sc_dev.dv_xname); 1104 #endif 1105 if (acb->iob_len) { 1106 int adjust; 1107 adjust = ((dfifo - (dbc & 0x7f)) & 0x7f); 1108 if (sstat0 & SIOP_SSTAT0_OLF) /* sstat0 SODL lsb */ 1109 ++adjust; 1110 if (sstat0 & SIOP_SSTAT0_ORF) /* sstat0 SODR lsb */ 1111 ++adjust; 1112 if (sstat2 & SIOP_SSTAT2_OLF1) /* sstat2 SODL msb */ 1113 ++adjust; 1114 if (sstat2 & SIOP_SSTAT2_ORF1) /* sstat2 SODR msb */ 1115 ++adjust; 1116 acb->iob_curlen = *((long *)&rp->siop_dcmd) & 0xffffff; 1117 acb->iob_curlen += adjust; 1118 acb->iob_curbuf = *((long *)&rp->siop_dnad) - adjust; 1119 #ifdef DEBUG 1120 if (siopng_debug & 0x100) { 1121 int i; 1122 printf ("Phase mismatch: curbuf %lx curlen %lx dfifo %x dbc %x sstat1 %x adjust %x sbcl %x starts %d acb %p\n", 1123 acb->iob_curbuf, acb->iob_curlen, dfifo, 1124 dbc, sstat1, adjust, rp->siop_sbcl, siopngstarts, acb); 1125 if (acb->ds.chain[1].datalen) { 1126 for (i = 0; acb->ds.chain[i].datalen; ++i) 1127 printf("chain[%d] addr %p len %lx\n", 1128 i, acb->ds.chain[i].databuf, 1129 acb->ds.chain[i].datalen); 1130 } 1131 } 1132 #endif 1133 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1134 } 1135 #ifdef DEBUG 1136 SIOP_TRACE('m',rp->siop_sbcl,(rp->siop_dsp>>8),rp->siop_dsp); 1137 if (siopng_debug & 9) 1138 printf ("Phase mismatch: %x dsp +%lx dcmd %lx\n", 1139 rp->siop_sbcl, 1140 rp->siop_dsp - sc->sc_scriptspa, 1141 *((long *)&rp->siop_dcmd)); 1142 #endif 1143 if ((rp->siop_sbcl & SIOP_REQ) == 0) { 1144 printf ("Phase mismatch: REQ not asserted! %02x dsp %lx\n", 1145 rp->siop_sbcl, rp->siop_dsp); 1146 #if defined(DEBUG) && defined(DDB) 1147 Debugger(); 1148 #endif 1149 } 1150 switch (rp->siop_sbcl & 7) { 1151 case 0: /* data out */ 1152 case 1: /* data in */ 1153 case 2: /* status */ 1154 case 3: /* command */ 1155 case 6: /* message in */ 1156 case 7: /* message out */ 1157 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1158 break; 1159 default: 1160 goto bad_phase; 1161 } 1162 return 0; 1163 } 1164 if (sist & SIOP_SIST_STO) { /* Select timed out */ 1165 #ifdef DEBUG 1166 if (acb == NULL) 1167 printf("%s: Select timeout with no active command?\n", 1168 sc->sc_dev.dv_xname); 1169 if (rp->siop_sbcl & SIOP_BSY) { 1170 printf ("ACK! siop was busy at timeout: rp %p script %p dsa %p\n", 1171 rp, &siopng_scripts, &acb->ds); 1172 printf(" sbcl %x sdid %x istat %x dstat %x sist %x\n", 1173 rp->siop_sbcl, rp->siop_sdid, istat, dstat, sist); 1174 if (!(rp->siop_sbcl & SIOP_BSY)) { 1175 printf ("Yikes, it's not busy now!\n"); 1176 #if 0 1177 *status = -1; 1178 if (sc->nexus_list.tqh_first) 1179 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1180 return 1; 1181 #endif 1182 } 1183 /* rp->siop_dcntl |= SIOP_DCNTL_STD;*/ 1184 return (0); 1185 #ifdef DDB 1186 Debugger(); 1187 #endif 1188 } 1189 #endif 1190 *status = -1; 1191 acb->xs->error = XS_SELTIMEOUT; 1192 if (sc->nexus_list.tqh_first) 1193 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1194 return 1; 1195 } 1196 if (acb) 1197 target = acb->xs->xs_periph->periph_target; 1198 else 1199 target = 7; 1200 if (sist & SIOP_SIST_UDC) { 1201 #ifdef DEBUG 1202 if (acb == NULL) 1203 printf("%s: Unexpected disconnect with no active command?\n", 1204 sc->sc_dev.dv_xname); 1205 printf ("%s: target %d disconnected unexpectedly\n", 1206 sc->sc_dev.dv_xname, target); 1207 siopng_dump_registers(sc); 1208 siopng_dump(sc); 1209 #endif 1210 #if 0 1211 siopngabort (sc, rp, "siopngchkintr"); 1212 #endif 1213 *status = STS_BUSY; 1214 if (sc->nexus_list.tqh_first) 1215 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1216 return (acb != NULL); 1217 } 1218 if (dstat & SIOP_DSTAT_SIR && (rp->siop_dsps == 0xff01 || 1219 rp->siop_dsps == 0xff02)) { 1220 #ifdef DEBUG 1221 if (siopng_debug & 0x100) 1222 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", 1223 sc->sc_dev.dv_xname, 1 << target, rp->siop_temp, 1224 rp->siop_temp ? rp->siop_temp - sc->sc_scriptspa : 0, 1225 acb->iob_curbuf, acb->iob_curlen, 1226 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen, dfifo, dbc, sstat1, siopngstarts, acb); 1227 #endif 1228 if (acb == NULL) { 1229 printf("%s: Disconnect with no active command?\n", 1230 sc->sc_dev.dv_xname); 1231 return (0); 1232 } 1233 /* 1234 * XXXX need to update iob_curbuf/iob_curlen to reflect 1235 * current data transferred. If device disconnected in 1236 * the middle of a DMA block, they should already be set 1237 * by the phase change interrupt. If the disconnect 1238 * occurs on a DMA block boundary, we have to figure out 1239 * which DMA block it was. 1240 */ 1241 if (acb->iob_len && rp->siop_temp) { 1242 int n = rp->siop_temp - sc->sc_scriptspa; 1243 1244 if (acb->iob_curlen && acb->iob_curlen != acb->ds.chain[0].datalen) 1245 printf("%s: iob_curbuf/len already set? n %x iob %lx/%lx chain[0] %p/%lx\n", 1246 sc->sc_dev.dv_xname, n, acb->iob_curbuf, acb->iob_curlen, 1247 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen); 1248 if (n < Ent_datain) 1249 n = (n - Ent_dataout) / 16; 1250 else 1251 n = (n - Ent_datain) / 16; 1252 if (n <= 0 && n > DMAMAXIO) 1253 printf("TEMP invalid %d\n", n); 1254 else { 1255 acb->iob_curbuf = (u_long)acb->ds.chain[n].databuf; 1256 acb->iob_curlen = acb->ds.chain[n].datalen; 1257 } 1258 #ifdef DEBUG 1259 if (siopng_debug & 0x100) { 1260 printf("%s: TEMP offset %d", sc->sc_dev.dv_xname, n); 1261 printf(" curbuf %lx curlen %lx\n", acb->iob_curbuf, 1262 acb->iob_curlen); 1263 } 1264 #endif 1265 } 1266 /* 1267 * If data transfer was interrupted by disconnect, iob_curbuf 1268 * and iob_curlen should reflect the point of interruption. 1269 * Adjust the DMA chain so that the data transfer begins 1270 * at the appropriate place upon reselection. 1271 * XXX This should only be done on save data pointer message? 1272 */ 1273 if (acb->iob_curlen) { 1274 int i, j; 1275 1276 #ifdef DEBUG 1277 if (siopng_debug & 0x100) 1278 printf ("%s: adjusting DMA chain\n", 1279 sc->sc_dev.dv_xname); 1280 if (rp->siop_dsps == 0xff02) 1281 printf ("%s: ID %02x disconnected without Save Data Pointers\n", 1282 sc->sc_dev.dv_xname, 1 << target); 1283 #endif 1284 for (i = 0; i < DMAMAXIO; ++i) { 1285 if (acb->ds.chain[i].datalen == 0) 1286 break; 1287 if (acb->iob_curbuf >= (long)acb->ds.chain[i].databuf && 1288 acb->iob_curbuf < (long)(acb->ds.chain[i].databuf + 1289 acb->ds.chain[i].datalen)) 1290 break; 1291 } 1292 if (i >= DMAMAXIO || acb->ds.chain[i].datalen == 0) { 1293 printf("couldn't find saved data pointer: "); 1294 printf("curbuf %lx curlen %lx i %d\n", 1295 acb->iob_curbuf, acb->iob_curlen, i); 1296 #ifdef DDB 1297 Debugger(); 1298 #endif 1299 } 1300 #ifdef DEBUG 1301 if (siopng_debug & 0x100) 1302 printf(" chain[0]: %p/%lx -> %lx/%lx\n", 1303 acb->ds.chain[0].databuf, 1304 acb->ds.chain[0].datalen, 1305 acb->iob_curbuf, 1306 acb->iob_curlen); 1307 #endif 1308 acb->ds.chain[0].databuf = (char *)acb->iob_curbuf; 1309 acb->ds.chain[0].datalen = acb->iob_curlen; 1310 for (j = 1, ++i; i < DMAMAXIO && acb->ds.chain[i].datalen; ++i, ++j) { 1311 #ifdef DEBUG 1312 if (siopng_debug & 0x100) 1313 printf(" chain[%d]: %p/%lx -> %p/%lx\n", j, 1314 acb->ds.chain[j].databuf, 1315 acb->ds.chain[j].datalen, 1316 acb->ds.chain[i].databuf, 1317 acb->ds.chain[i].datalen); 1318 #endif 1319 acb->ds.chain[j].databuf = acb->ds.chain[i].databuf; 1320 acb->ds.chain[j].datalen = acb->ds.chain[i].datalen; 1321 } 1322 if (j < DMAMAXIO) 1323 acb->ds.chain[j].datalen = 0; 1324 DCIAS(kvtop((caddr_t)&acb->ds.chain)); 1325 } 1326 ++sc->sc_tinfo[target].dconns; 1327 /* 1328 * add nexus to waiting list 1329 * clear nexus 1330 * try to start another command for another target/lun 1331 */ 1332 acb->status = sc->sc_flags & SIOP_INTSOFF; 1333 TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain); 1334 sc->sc_nexus = NULL; /* no current device */ 1335 /* start script to wait for reselect */ 1336 if (sc->sc_nexus == NULL) 1337 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1338 /* XXXX start another command ? */ 1339 if (sc->ready_list.tqh_first) 1340 siopng_sched(sc); 1341 #if 0 1342 else 1343 rp->siop_dcntl |= SIOP_DCNTL_STD; 1344 #endif 1345 return (0); 1346 } 1347 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff03) { 1348 int reselid = rp->siop_scratcha & 0x7f; 1349 int reselun = rp->siop_sfbr & 0x07; 1350 1351 sc->sc_sstat1 = rp->siop_sbcl; /* XXXX save current SBCL */ 1352 #ifdef DEBUG 1353 if (siopng_debug & 0x100) 1354 printf ("%s: target ID %02x reselected dsps %lx\n", 1355 sc->sc_dev.dv_xname, reselid, 1356 rp->siop_dsps); 1357 if ((rp->siop_sfbr & 0x80) == 0) 1358 printf("%s: Reselect message in was not identify: %x\n", 1359 sc->sc_dev.dv_xname, rp->siop_sfbr); 1360 #endif 1361 if (sc->sc_nexus) { 1362 #ifdef DEBUG 1363 if (siopng_debug & 0x100) 1364 printf ("%s: reselect ID %02x w/active\n", 1365 sc->sc_dev.dv_xname, reselid); 1366 #endif 1367 TAILQ_INSERT_HEAD(&sc->ready_list, sc->sc_nexus, chain); 1368 sc->sc_tinfo[sc->sc_nexus->xs->xs_periph->periph_target].lubusy 1369 &= ~(1 << sc->sc_nexus->xs->xs_periph->periph_lun); 1370 --sc->sc_active; 1371 } 1372 /* 1373 * locate acb of reselecting device 1374 * set sc->sc_nexus to acb 1375 */ 1376 for (acb = sc->nexus_list.tqh_first; acb; 1377 acb = acb->chain.tqe_next) { 1378 if (reselid != ((acb->ds.scsi_addr >> 16) & 0xff) || 1379 reselun != (acb->msgout[0] & 0x07)) 1380 continue; 1381 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 1382 sc->sc_nexus = acb; 1383 sc->sc_flags |= acb->status; 1384 acb->status = 0; 1385 DCIAS(kvtop(&acb->stat[0])); 1386 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 1387 rp->siop_sxfer = 1388 sc->sc_sync[acb->xs->xs_periph->periph_target].sxfer; 1389 #ifndef FIXME 1390 rp->siop_scntl3 = 1391 sc->sc_sync[acb->xs->xs_periph->periph_target].scntl3; 1392 #endif 1393 break; 1394 } 1395 if (acb == NULL) { 1396 printf("%s: target ID %02x reselect nexus_list %p\n", 1397 sc->sc_dev.dv_xname, reselid, 1398 sc->nexus_list.tqh_first); 1399 panic("unable to find reselecting device"); 1400 } 1401 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1402 rp->siop_temp = 0; 1403 rp->siop_dcntl |= SIOP_DCNTL_STD; 1404 return (0); 1405 } 1406 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff04) { 1407 #ifdef DEBUG 1408 u_short ctest2 = rp->siop_ctest2; 1409 1410 /* reselect was interrupted (by Sig_P or select) */ 1411 if (siopng_debug & 0x100 || 1412 (ctest2 & SIOP_CTEST2_SIGP) == 0) 1413 printf ("%s: reselect interrupted (Sig_P?) scntl1 %x ctest2 %x sfbr %x istat %x/%x\n", 1414 sc->sc_dev.dv_xname, rp->siop_scntl1, 1415 ctest2, rp->siop_sfbr, istat, rp->siop_istat); 1416 #endif 1417 /* XXX assumes it was not select */ 1418 if (sc->sc_nexus == NULL) { 1419 #ifdef DEBUG 1420 printf("%s: reselect interrupted, sc_nexus == NULL\n", 1421 sc->sc_dev.dv_xname); 1422 #if 0 1423 siopng_dump(sc); 1424 #ifdef DDB 1425 Debugger(); 1426 #endif 1427 #endif 1428 #endif 1429 rp->siop_dcntl |= SIOP_DCNTL_STD; 1430 return(0); 1431 } 1432 target = sc->sc_nexus->xs->xs_periph->periph_target; 1433 rp->siop_temp = 0; 1434 rp->siop_dsa = kvtop((caddr_t)&sc->sc_nexus->ds); 1435 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1436 #ifndef FIXME 1437 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1438 #endif 1439 rp->siop_dsp = sc->sc_scriptspa; 1440 return (0); 1441 } 1442 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff06) { 1443 if (acb == NULL) 1444 printf("%s: Bad message-in with no active command?\n", 1445 sc->sc_dev.dv_xname); 1446 /* Unrecognized message in byte */ 1447 dma_cachectl (&acb->msg[1],1); 1448 printf ("%s: Unrecognized message in data sfbr %x msg %x sbcl %x\n", 1449 sc->sc_dev.dv_xname, rp->siop_sfbr, acb->msg[1], rp->siop_sbcl); 1450 /* what should be done here? */ 1451 DCIAS(kvtop(&acb->msg[1])); 1452 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1453 return (0); 1454 } 1455 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0a) { 1456 /* Status phase wasn't followed by message in phase? */ 1457 printf ("%s: Status phase not followed by message in phase? sbcl %x sbdl %x\n", 1458 sc->sc_dev.dv_xname, rp->siop_sbcl, rp->siop_sbdl); 1459 if (rp->siop_sbcl == 0xa7) { 1460 /* It is now, just continue the script? */ 1461 rp->siop_dcntl |= SIOP_DCNTL_STD; 1462 return (0); 1463 } 1464 } 1465 if (sist == 0 && dstat & SIOP_DSTAT_SIR) { 1466 dma_cachectl (&acb->stat[0], 1); 1467 dma_cachectl (&acb->msg[0], 1); 1468 printf ("SIOP interrupt: %lx sts %x msg %x %x sbcl %x\n", 1469 rp->siop_dsps, acb->stat[0], acb->msg[0], acb->msg[1], 1470 rp->siop_sbcl); 1471 siopngreset (sc); 1472 *status = -1; 1473 return 0; /* siopngreset has cleaned up */ 1474 } 1475 if (sist & SIOP_SIST_SGE) 1476 printf ("SIOP: SCSI Gross Error\n"); 1477 if (sist & SIOP_SIST_PAR) 1478 printf ("SIOP: Parity Error\n"); 1479 if (dstat & SIOP_DSTAT_IID) 1480 printf ("SIOP: Invalid instruction detected\n"); 1481 bad_phase: 1482 /* 1483 * temporary panic for unhandled conditions 1484 * displays various things about the 53C720/770 status and registers 1485 * then panics. 1486 * XXXX need to clean this up to print out the info, reset, and continue 1487 */ 1488 printf ("siopngchkintr: target %x ds %p\n", target, &acb->ds); 1489 printf ("scripts %lx ds %x rp %x dsp %lx dcmd %lx\n", sc->sc_scriptspa, 1490 kvtop((caddr_t)&acb->ds), kvtop((caddr_t)rp), rp->siop_dsp, 1491 *((long *)&rp->siop_dcmd)); 1492 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %lx dsa %lx sbcl %x sts %x msg %x %x sfbr %x\n", 1493 istat, dstat, sist, rp->siop_dsps, rp->siop_dsa, 1494 rp->siop_sbcl, acb->stat[0], acb->msg[0], acb->msg[1], rp->siop_sfbr); 1495 #ifdef DEBUG 1496 if (siopng_debug & 0x20) 1497 panic("siopngchkintr: **** temp ****"); 1498 #endif 1499 #ifdef DDB 1500 Debugger (); 1501 #endif 1502 siopngreset (sc); /* hard reset */ 1503 *status = -1; 1504 return 0; /* siopngreset cleaned up */ 1505 } 1506 1507 void 1508 siopng_select(struct siop_softc *sc) 1509 { 1510 siop_regmap_p rp; 1511 struct siop_acb *acb = sc->sc_nexus; 1512 1513 #ifdef DEBUG 1514 if (siopng_debug & 1) 1515 printf ("%s: select ", sc->sc_dev.dv_xname); 1516 #endif 1517 1518 rp = sc->sc_siopp; 1519 if (acb->xs->xs_control & XS_CTL_POLL || siopng_no_dma) { 1520 sc->sc_flags |= SIOP_INTSOFF; 1521 sc->sc_flags &= ~SIOP_INTDEFER; 1522 if ((rp->siop_istat & 0x08) == 0) { 1523 rp->siop_sien = 0; 1524 rp->siop_dien = 0; 1525 } 1526 #if 0 1527 } else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 1528 sc->sc_flags &= ~SIOP_INTSOFF; 1529 if ((rp->siop_istat & 0x08) == 0) { 1530 rp->siop_sien = sc->sc_sien; 1531 rp->siop_dien = sc->sc_dien; 1532 } 1533 #endif 1534 } 1535 #ifdef DEBUG 1536 if (siopng_debug & 1) 1537 printf ("siopng_select: target %x cmd %02x ds %p\n", 1538 acb->xs->xs_periph->periph_target, acb->cmd.opcode, 1539 &sc->sc_nexus->ds); 1540 #endif 1541 1542 siopng_start(sc, acb->xs->xs_periph->periph_target, 1543 acb->xs->xs_periph->periph_lun, 1544 (u_char *)&acb->cmd, acb->clen, acb->daddr, acb->dleft); 1545 1546 return; 1547 } 1548 1549 /* 1550 * 53C720/770 interrupt handler 1551 */ 1552 1553 void 1554 siopngintr(register struct siop_softc *sc) 1555 { 1556 siop_regmap_p rp; 1557 u_char istat, dstat; 1558 u_short sist; 1559 int status; 1560 int s = splbio(); 1561 1562 istat = sc->sc_istat; 1563 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 1564 splx(s); 1565 return; 1566 } 1567 1568 /* Got a valid interrupt on this device */ 1569 rp = sc->sc_siopp; 1570 dstat = sc->sc_dstat; 1571 sist = sc->sc_sist; 1572 if (dstat & SIOP_DSTAT_SIR) 1573 sc->sc_intcode = rp->siop_dsps; 1574 sc->sc_istat = 0; 1575 #ifdef DEBUG 1576 if (siopng_debug & 1) 1577 printf ("%s: intr istat %x dstat %x sist %x\n", 1578 sc->sc_dev.dv_xname, istat, dstat, sist); 1579 if (!sc->sc_active) { 1580 printf ("%s: spurious interrupt? istat %x dstat %x sist %x nexus %p status %x\n", 1581 sc->sc_dev.dv_xname, istat, dstat, sist, 1582 sc->sc_nexus, sc->sc_nexus ? sc->sc_nexus->stat[0] : 0); 1583 } 1584 #endif 1585 1586 #ifdef DEBUG 1587 if (siopng_debug & 5) { 1588 DCIAS(kvtop(&sc->sc_nexus->stat[0])); 1589 printf ("%s: intr istat %x dstat %x sist %x dsps %lx sbcl %x sts %x msg %x\n", 1590 sc->sc_dev.dv_xname, istat, dstat, sist, 1591 rp->siop_dsps, rp->siop_sbcl, 1592 sc->sc_nexus->stat[0], sc->sc_nexus->msg[0]); 1593 } 1594 #endif 1595 if (sc->sc_flags & SIOP_INTDEFER) { 1596 sc->sc_flags &= ~(SIOP_INTDEFER | SIOP_INTSOFF); 1597 rp->siop_sien = sc->sc_sien; 1598 rp->siop_dien = sc->sc_dien; 1599 } 1600 if (siopng_checkintr (sc, istat, dstat, sist, &status)) { 1601 #if 1 1602 if (status == 0xff) 1603 printf ("siopngintr: status == 0xff\n"); 1604 #endif 1605 if ((sc->sc_flags & (SIOP_INTSOFF | SIOP_INTDEFER)) != SIOP_INTSOFF) { 1606 #if 0 1607 if (rp->siop_sbcl & SIOP_BSY) { 1608 printf ("%s: SCSI bus busy at completion", 1609 sc->sc_dev.dv_xname); 1610 printf(" targ %d sbcl %02x sfbr %x respid %02x dsp +%x\n", 1611 sc->sc_nexus->xs->xs_periph->periph_target, 1612 rp->siop_sbcl, rp->siop_sfbr, rp->siop_respid, 1613 rp->siop_dsp - sc->sc_scriptspa); 1614 } 1615 #endif 1616 siopng_scsidone(sc->sc_nexus, sc->sc_nexus ? 1617 sc->sc_nexus->stat[0] : -1); 1618 } 1619 } 1620 splx(s); 1621 } 1622 1623 /* 1624 * This is based on the Progressive Peripherals 33Mhz Zeus driver and will 1625 * not be correct for other 53c710 boards. 1626 * 1627 */ 1628 void 1629 scsi_period_to_siopng(struct siop_softc *sc, int target) 1630 { 1631 int period, offset, sxfer, scntl3 = 0; 1632 1633 period = sc->sc_nexus->msg[4]; 1634 offset = sc->sc_nexus->msg[5]; 1635 #ifdef FIXME 1636 for (scntl3 = 1; scntl3 < 4; ++scntl3) { 1637 sxfer = (period * 4 - 1) / sc->sc_tcp[scntl3] - 3; 1638 if (sxfer >= 0 && sxfer <= 7) 1639 break; 1640 } 1641 if (scntl3 > 3) { 1642 printf("siopng sync: unable to compute sync params for period %dns\n", 1643 period * 4); 1644 /* 1645 * XXX need to pick a value we can do and renegotiate 1646 */ 1647 sxfer = scntl3 = 0; 1648 } else { 1649 sxfer = (sxfer << 4) | ((offset <= SIOP_MAX_OFFSET) ? 1650 offset : SIOP_MAX_OFFSET); 1651 #ifdef DEBUG_SYNC 1652 printf("siopng sync: params for period %dns: sxfer %x scntl3 %x", 1653 period * 4, sxfer, scntl3); 1654 printf(" actual period %dns\n", 1655 sc->sc_tcp[scntl3] * ((sxfer >> 4) + 4)); 1656 #endif /* DEBUG_SYNC */ 1657 } 1658 #else /* FIXME */ 1659 sxfer = offset <= SIOP_MAX_OFFSET ? offset : SIOP_MAX_OFFSET; 1660 sxfer |= 0x20; /* XXX XFERP: 5 */ 1661 #ifndef FIXME 1662 if (period <= (50 / 4)) /* XXX */ 1663 scntl3 = 0x95; /* Ultra, SCF: /1, CCF: /4 */ 1664 else if (period <= (100 / 4)) 1665 scntl3 = 0x35; /* SCF: /2, CCF: /4 */ 1666 else if (period <= (200 / 4)) 1667 scntl3 = 0x55; /* SCF: /4, CCF: /4 */ 1668 else 1669 scntl3 = 0xff; /* XXX ??? */ 1670 #else 1671 scntl3 = 5; 1672 #endif 1673 #endif 1674 sc->sc_sync[target].sxfer = sxfer; 1675 sc->sc_sync[target].scntl3 = scntl3 | 1676 (sc->sc_sync[target].scntl3 & SIOP_SCNTL3_EWS); 1677 #ifdef DEBUG_SYNC 1678 printf ("siopng sync: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1679 #endif 1680 } 1681 1682 void 1683 siopng_dump_registers(struct siop_softc *sc) 1684 { 1685 siop_regmap_p rp = sc->sc_siopp; 1686 1687 printf(" scntl0 %02x scntl1 %02x scntl2 %02x scntl3 %02x\n", 1688 rp->siop_scntl0, rp->siop_scntl1, rp->siop_scntl2, rp->siop_scntl3); 1689 printf(" scid %02x sxfer %02x sdid %02x gpreg %02x\n", 1690 rp->siop_scid, rp->siop_sxfer, rp->siop_sdid, rp->siop_gpreg); 1691 printf(" sfbr %02x socl %02x ssid %02x sbcl %02x\n", 1692 rp->siop_sfbr, rp->siop_socl, rp->siop_ssid, rp->siop_sbcl); 1693 printf(" dstat %02x sstat0 %02x sstat1 %02x sstat2 %02x\n", 1694 rp->siop_dstat, rp->siop_sstat0, rp->siop_sstat1, rp->siop_sstat2); 1695 printf(" ctest0 %02x ctest1 %02x ctest2 %02x ctest3 %02x\n", 1696 rp->siop_ctest0, rp->siop_ctest1, rp->siop_ctest2, rp->siop_ctest3); 1697 printf(" dfifo %02x ctest4 %02x ctest5 %02x ctest6 %02x\n", 1698 0, rp->siop_ctest4, rp->siop_ctest5, rp->siop_ctest6); 1699 printf(" dcmd %02x dbc2 %02x dbc1 %02x dbc0 %02x\n", 1700 rp->siop_dcmd, rp->siop_dbc2, rp->siop_dbc1, rp->siop_dbc0); 1701 printf(" dmode %02x dien %02x dwt %02x dcntl %02x\n", 1702 rp->siop_dmode, rp->siop_dien, rp->siop_dwt, rp->siop_dcntl); 1703 printf(" stest0 %02x stest1 %02x stest2 %02x stest3 %02x\n", 1704 rp->siop_stest0, rp->siop_stest1, rp->siop_stest2, rp->siop_stest3); 1705 printf(" istat %02x sien %04x sist %04x respid %04x\n", 1706 rp->siop_istat, rp->siop_sien, rp->siop_sist, rp->siop_respid); 1707 printf(" sidl %04x sodl %04x sbdl %04x\n", 1708 rp->siop_sidl, rp->siop_sodl, rp->siop_sbdl); 1709 printf(" dsps %08lx dsp %08lx (+%lx)\n", 1710 rp->siop_dsps, rp->siop_dsp, rp->siop_dsp > sc->sc_scriptspa ? 1711 rp->siop_dsp - sc->sc_scriptspa : 0); 1712 printf(" dsa %08lx temp %08lx dnad %08lx\n", 1713 rp->siop_dsa, rp->siop_temp, rp->siop_dnad); 1714 printf(" scratcha %08lx scratchb %08lx adder %08lx\n", 1715 rp->siop_scratcha, rp->siop_scratchb, rp->siop_adder); 1716 } 1717 1718 #ifdef DEBUG 1719 1720 #if SIOP_TRACE_SIZE 1721 void 1722 siopng_dump_trace(void) 1723 { 1724 int i; 1725 1726 printf("siopng trace: next index %d\n", siopng_trix); 1727 i = siopng_trix; 1728 do { 1729 printf("%3d: '%c' %02x %02x %02x\n", i, siopng_trbuf[i], 1730 siopng_trbuf[i + 1], siopng_trbuf[i + 2], siopng_trbuf[i + 3]); 1731 i = (i + 4) & (SIOP_TRACE_SIZE - 1); 1732 } while (i != siopng_trix); 1733 } 1734 #endif 1735 1736 void 1737 siopng_dump_acb(struct siop_acb *acb) 1738 { 1739 u_char *b = (u_char *) &acb->cmd; 1740 int i; 1741 1742 printf("acb@%p ", acb); 1743 if (acb->xs == NULL) { 1744 printf("<unused>\n"); 1745 return; 1746 } 1747 printf("(%d:%d) flags %2x clen %2d cmd ", 1748 acb->xs->xs_periph->periph_target, 1749 acb->xs->xs_periph->periph_lun, acb->flags, acb->clen); 1750 for (i = acb->clen; i; --i) 1751 printf(" %02x", *b++); 1752 printf("\n"); 1753 printf(" xs: %p data %p:%04x ", acb->xs, acb->xs->data, 1754 acb->xs->datalen); 1755 printf("va %p:%lx ", acb->iob_buf, acb->iob_len); 1756 printf("cur %lx:%lx\n", acb->iob_curbuf, acb->iob_curlen); 1757 } 1758 1759 void 1760 siopng_dump(struct siop_softc *sc) 1761 { 1762 struct siop_acb *acb; 1763 siop_regmap_p rp = sc->sc_siopp; 1764 int s; 1765 int i; 1766 1767 s = splbio(); 1768 #if SIOP_TRACE_SIZE 1769 siopng_dump_trace(); 1770 #endif 1771 printf("%s@%p regs %p istat %x\n", 1772 sc->sc_dev.dv_xname, sc, rp, rp->siop_istat); 1773 if ((acb = sc->free_list.tqh_first) > 0) { 1774 printf("Free list:\n"); 1775 while (acb) { 1776 siopng_dump_acb(acb); 1777 acb = acb->chain.tqe_next; 1778 } 1779 } 1780 if ((acb = sc->ready_list.tqh_first) > 0) { 1781 printf("Ready list:\n"); 1782 while (acb) { 1783 siopng_dump_acb(acb); 1784 acb = acb->chain.tqe_next; 1785 } 1786 } 1787 if ((acb = sc->nexus_list.tqh_first) > 0) { 1788 printf("Nexus list:\n"); 1789 while (acb) { 1790 siopng_dump_acb(acb); 1791 acb = acb->chain.tqe_next; 1792 } 1793 } 1794 if (sc->sc_nexus) { 1795 printf("Nexus:\n"); 1796 siopng_dump_acb(sc->sc_nexus); 1797 } 1798 for (i = 0; i < 8; ++i) { 1799 if (sc->sc_tinfo[i].cmds > 2) { 1800 printf("tgt %d: cmds %d disc %d lubusy %x\n", 1801 i, sc->sc_tinfo[i].cmds, 1802 sc->sc_tinfo[i].dconns, 1803 sc->sc_tinfo[i].lubusy); 1804 } 1805 } 1806 splx(s); 1807 } 1808 #endif 1809
Indexes created Thu Oct 02 14:10:14 GMT 2025