siop2.c revision 1.15.2.2
1 /* $NetBSD: siop2.c,v 1.15.2.2 2002/02/11 20:07:07 jdolecek 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 1.15.2.2 2002/02/11 20:07:07 jdolecek 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 #include <dev/scsipi/scsi_all.h> 59 #include <dev/scsipi/scsipi_all.h> 60 #include <dev/scsipi/scsiconf.h> 61 #include <machine/cpu.h> 62 #ifdef __m68k__ 63 #include <m68k/include/cacheops.h> 64 #endif 65 #include <amiga/amiga/custom.h> 66 #include <amiga/amiga/isr.h> 67 68 #define ARCH_720 69 70 #include <amiga/dev/siopreg.h> 71 #include <amiga/dev/siopvar.h> 72 73 /* 74 * SCSI delays 75 * In u-seconds, primarily for state changes on the SPC. 76 */ 77 #define SCSI_CMD_WAIT 500000 /* wait per step of 'immediate' cmds */ 78 #define SCSI_DATA_WAIT 500000 /* wait per data in/out step */ 79 #define SCSI_INIT_WAIT 500000 /* wait per step (both) during init */ 80 81 void siopng_select(struct siop_softc *); 82 void siopngabort(struct siop_softc *, siop_regmap_p, char *); 83 void siopngerror(struct siop_softc *, siop_regmap_p, u_char); 84 void siopngstart(struct siop_softc *); 85 int siopng_checkintr(struct siop_softc *, u_char, u_char, u_short, int *); 86 void siopngreset(struct siop_softc *); 87 void siopngsetdelay(int); 88 void siopng_scsidone(struct siop_acb *, int); 89 void siopng_sched(struct siop_softc *); 90 void siopng_poll(struct siop_softc *, struct siop_acb *); 91 void siopngintr(struct siop_softc *); 92 void scsi_period_to_siopng(struct siop_softc *, int); 93 void siopng_start(struct siop_softc *, int, int, u_char *, int, u_char *, int); 94 void siopng_dump_acb(struct siop_acb *); 95 96 /* 53C720/770 script */ 97 98 #include <amiga/dev/siop2_script.out> 99 100 /* default to not inhibit sync negotiation on any drive */ 101 u_char siopng_inhibit_sync[16] = { 102 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 103 }; /* initialize, so patchable */ 104 105 u_char siopng_inhibit_wide[16] = { 106 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 107 }; /* initialize, so patchable */ 108 109 u_char siopng_allow_disc[16] = { 110 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 111 }; 112 113 int siopng_no_dma = 0; 114 115 int siopng_reset_delay = 250; /* delay after reset, in milleseconds */ 116 117 int siopng_cmd_wait = SCSI_CMD_WAIT; 118 int siopng_data_wait = SCSI_DATA_WAIT; 119 int siopng_init_wait = SCSI_INIT_WAIT; 120 121 #define DEBUG_SYNC 122 123 #ifdef DEBUG 124 /* 125 * 0x01 - full debug 126 * 0x02 - DMA chaining 127 * 0x04 - siopngintr 128 * 0x08 - phase mismatch 129 * 0x10 - <not used> 130 * 0x20 - panic on unhandled exceptions 131 * 0x100 - disconnect/reselect 132 */ 133 int siopng_debug = 0; 134 int siopngsync_debug = 0; 135 int siopngdma_hits = 0; 136 int siopngdma_misses = 0; 137 int siopngchain_ints = 0; 138 int siopngstarts = 0; 139 int siopngints = 0; 140 int siopngphmm = 0; 141 #define SIOP_TRACE_SIZE 128 142 #define SIOP_TRACE(a,b,c,d) \ 143 siopng_trbuf[siopng_trix] = (a); \ 144 siopng_trbuf[siopng_trix+1] = (b); \ 145 siopng_trbuf[siopng_trix+2] = (c); \ 146 siopng_trbuf[siopng_trix+3] = (d); \ 147 siopng_trix = (siopng_trix + 4) & (SIOP_TRACE_SIZE - 1); 148 u_char siopng_trbuf[SIOP_TRACE_SIZE]; 149 int siopng_trix; 150 void siopng_dump(struct siop_softc *); 151 void siopng_dump_trace(void); 152 #else 153 #define SIOP_TRACE(a,b,c,d) 154 #endif 155 156 157 static char *siopng_chips[] = { 158 "720", "720SE", "770", "0x3", 159 "810A", "0x5", "0x6", "0x7", 160 "0x8", "0x9", "0xA", "0xB", 161 "0xC", "0xD", "0xE", "0xF", 162 }; 163 164 /* 165 * default minphys routine for siopng based controllers 166 */ 167 void 168 siopng_minphys(struct buf *bp) 169 { 170 171 /* 172 * No max transfer at this level. 173 */ 174 minphys(bp); 175 } 176 177 /* 178 * used by specific siopng controller 179 * 180 */ 181 void 182 siopng_scsipi_request(struct scsipi_channel *chan, 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(struct siop_softc *sc, struct siop_acb *acb) 253 { 254 siop_regmap_p rp = sc->sc_siopp; 255 struct scsipi_xfer *xs = acb->xs; 256 int i; 257 int status; 258 u_char istat; 259 u_char dstat; 260 u_short sist; 261 int s; 262 int to; 263 264 s = splbio(); 265 to = xs->timeout / 1000; 266 if (sc->nexus_list.tqh_first) 267 printf("%s: siopng_poll called with disconnected device\n", 268 sc->sc_dev.dv_xname); 269 for (;;) { 270 /* use cmd_wait values? */ 271 i = 50000; 272 /* XXX spl0(); */ 273 while (((istat = rp->siop_istat) & 274 (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 275 if (--i <= 0) { 276 #ifdef DEBUG 277 printf ("waiting: tgt %d cmd %02x sbcl %02x istat %02x sbdl %04x\n dsp %lx (+%lx) dcmd %lx ds %p timeout %d\n", 278 xs->xs_periph->periph_target, acb->cmd.opcode, 279 rp->siop_sbcl, istat, rp->siop_sbdl, rp->siop_dsp, 280 rp->siop_dsp - sc->sc_scriptspa, 281 *((long *)&rp->siop_dcmd), &acb->ds, acb->xs->timeout); 282 #endif 283 i = 50000; 284 --to; 285 if (to <= 0) { 286 siopngreset(sc); 287 return; 288 } 289 } 290 delay(20); 291 } 292 sist = rp->siop_sist; 293 dstat = rp->siop_dstat; 294 if (siopng_checkintr(sc, istat, dstat, sist, &status)) { 295 if (acb != sc->sc_nexus) 296 printf("%s: siopng_poll disconnected device completed\n", 297 sc->sc_dev.dv_xname); 298 else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 299 sc->sc_flags &= ~SIOP_INTSOFF; 300 rp->siop_sien = sc->sc_sien; 301 rp->siop_dien = sc->sc_dien; 302 } 303 siopng_scsidone(sc->sc_nexus, status); 304 } 305 if (xs->xs_status & XS_STS_DONE) 306 break; 307 } 308 splx(s); 309 } 310 311 /* 312 * start next command that's ready 313 */ 314 void 315 siopng_sched(struct siop_softc *sc) 316 { 317 struct scsipi_periph *periph; 318 struct siop_acb *acb; 319 int i; 320 321 #ifdef DEBUG 322 if (sc->sc_nexus) { 323 printf("%s: siopng_sched- nexus %p/%d ready %p/%d\n", 324 sc->sc_dev.dv_xname, sc->sc_nexus, 325 sc->sc_nexus->xs->xs_periph->periph_target, 326 sc->ready_list.tqh_first, 327 sc->ready_list.tqh_first->xs->xs_periph->periph_target); 328 return; 329 } 330 #endif 331 for (acb = sc->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) { 332 periph = acb->xs->xs_periph; 333 i = periph->periph_target; 334 if(!(sc->sc_tinfo[i].lubusy & (1 << periph->periph_lun))) { 335 struct siop_tinfo *ti = &sc->sc_tinfo[i]; 336 337 TAILQ_REMOVE(&sc->ready_list, acb, chain); 338 sc->sc_nexus = acb; 339 periph = acb->xs->xs_periph; 340 ti = &sc->sc_tinfo[periph->periph_target]; 341 ti->lubusy |= (1 << periph->periph_lun); 342 break; 343 } 344 } 345 346 if (acb == NULL) { 347 #ifdef DEBUGXXX 348 printf("%s: siopng_sched didn't find ready command\n", 349 sc->sc_dev.dv_xname); 350 #endif 351 return; 352 } 353 354 if (acb->xs->xs_control & XS_CTL_RESET) 355 siopngreset(sc); 356 357 #if 0 358 acb->cmd.bytes[0] |= periph->periph_lun << 5; /* XXXX */ 359 #endif 360 ++sc->sc_active; 361 siopng_select(sc); 362 } 363 364 void 365 siopng_scsidone(struct siop_acb *acb, int stat) 366 { 367 struct scsipi_xfer *xs; 368 struct scsipi_periph *periph; 369 struct siop_softc *sc; 370 int dosched = 0; 371 372 if (acb == NULL || (xs = acb->xs) == NULL) { 373 #ifdef DIAGNOSTIC 374 printf("siopng_scsidone: NULL acb or scsipi_xfer\n"); 375 #if defined(DEBUG) && defined(DDB) 376 Debugger(); 377 #endif 378 #endif 379 return; 380 } 381 periph = xs->xs_periph; 382 sc = (void *)periph->periph_channel->chan_adapter->adapt_dev; 383 384 xs->status = stat; 385 xs->resid = 0; /* XXXX */ 386 387 if (xs->error == XS_NOERROR) { 388 if (stat == SCSI_CHECK || stat == SCSI_BUSY) 389 xs->error = XS_BUSY; 390 } 391 392 /* 393 * Remove the ACB from whatever queue it's on. We have to do a bit of 394 * a hack to figure out which queue it's on. Note that it is *not* 395 * necessary to cdr down the ready queue, but we must cdr down the 396 * nexus queue and see if it's there, so we can mark the unit as no 397 * longer busy. This code is sickening, but it works. 398 */ 399 if (acb == sc->sc_nexus) { 400 sc->sc_nexus = NULL; 401 sc->sc_tinfo[periph->periph_target].lubusy &= 402 ~(1<<periph->periph_lun); 403 if (sc->ready_list.tqh_first) 404 dosched = 1; /* start next command */ 405 --sc->sc_active; 406 SIOP_TRACE('d','a',stat,0) 407 } else if (sc->ready_list.tqh_last == &acb->chain.tqe_next) { 408 TAILQ_REMOVE(&sc->ready_list, acb, chain); 409 SIOP_TRACE('d','r',stat,0) 410 } else { 411 register struct siop_acb *acb2; 412 for (acb2 = sc->nexus_list.tqh_first; acb2; 413 acb2 = acb2->chain.tqe_next) 414 if (acb2 == acb) { 415 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 416 sc->sc_tinfo[periph->periph_target].lubusy 417 &= ~(1<<periph->periph_lun); 418 --sc->sc_active; 419 break; 420 } 421 if (acb2) 422 ; 423 else if (acb->chain.tqe_next) { 424 TAILQ_REMOVE(&sc->ready_list, acb, chain); 425 --sc->sc_active; 426 } else { 427 printf("%s: can't find matching acb\n", 428 sc->sc_dev.dv_xname); 429 #ifdef DDB 430 /* Debugger(); */ 431 #endif 432 } 433 SIOP_TRACE('d','n',stat,0); 434 } 435 /* Put it on the free list. */ 436 acb->flags = ACB_FREE; 437 TAILQ_INSERT_HEAD(&sc->free_list, acb, chain); 438 439 sc->sc_tinfo[periph->periph_target].cmds++; 440 441 scsipi_done(xs); 442 443 if (dosched && sc->sc_nexus == NULL) 444 siopng_sched(sc); 445 } 446 447 void 448 siopngabort(register struct siop_softc *sc, siop_regmap_p rp, char *where) 449 { 450 #ifdef fix_this 451 int i; 452 #endif 453 454 printf ("%s: abort %s: dstat %02x, istat %02x sist %04x sien %04x sbcl %02x\n", 455 sc->sc_dev.dv_xname, 456 where, rp->siop_dstat, rp->siop_istat, rp->siop_sist, 457 rp->siop_sien, rp->siop_sbcl); 458 siopng_dump_registers(sc); 459 460 if (sc->sc_active > 0) { 461 #ifdef TODO 462 SET_SBIC_cmd (rp, SBIC_CMD_ABORT); 463 WAIT_CIP (rp); 464 465 GET_SBIC_asr (rp, asr); 466 if (asr & (SBIC_ASR_BSY|SBIC_ASR_LCI)) 467 { 468 /* ok, get more drastic.. */ 469 470 SET_SBIC_cmd (rp, SBIC_CMD_RESET); 471 delay(25); 472 SBIC_WAIT(rp, SBIC_ASR_INT, 0); 473 GET_SBIC_csr (rp, csr); /* clears interrupt also */ 474 475 return; 476 } 477 478 do 479 { 480 SBIC_WAIT (rp, SBIC_ASR_INT, 0); 481 GET_SBIC_csr (rp, csr); 482 } 483 while ((csr != SBIC_CSR_DISC) && (csr != SBIC_CSR_DISC_1) 484 && (csr != SBIC_CSR_CMD_INVALID)); 485 #endif 486 487 /* lets just hope it worked.. */ 488 #ifdef fix_this 489 for (i = 0; i < 2; ++i) { 490 if (sc->sc_iob[i].sc_xs && &sc->sc_iob[i] != 491 sc->sc_cur) { 492 printf ("siopngabort: cleanup!\n"); 493 sc->sc_iob[i].sc_xs = NULL; 494 } 495 } 496 #endif /* fix_this */ 497 /* sc->sc_active = 0; */ 498 } 499 } 500 501 void 502 siopnginitialize(struct siop_softc *sc) 503 { 504 int i; 505 u_int inhibit_sync; 506 extern u_long scsi_nosync; 507 extern int shift_nosync; 508 509 /* 510 * Need to check that scripts is on a long word boundary 511 * Also should verify that dev doesn't span non-contiguous 512 * physical pages. 513 */ 514 sc->sc_scriptspa = kvtop((caddr_t)siopng_scripts); 515 516 /* 517 * malloc sc_acb to ensure that DS is on a long word boundary. 518 */ 519 520 MALLOC(sc->sc_acb, struct siop_acb *, 521 sizeof(struct siop_acb) * SIOP_NACB, M_DEVBUF, M_NOWAIT); 522 if (sc->sc_acb == NULL) 523 panic("siopnginitialize: ACB malloc failed!"); 524 525 sc->sc_tcp[1] = 1000 / sc->sc_clock_freq; 526 sc->sc_tcp[2] = 1500 / sc->sc_clock_freq; 527 sc->sc_tcp[3] = 2000 / sc->sc_clock_freq; 528 sc->sc_minsync = sc->sc_tcp[1]; /* in 4ns units */ 529 if (sc->sc_minsync < 25) 530 sc->sc_minsync = 25; 531 sc->sc_minsync >>= 1; /* Using clock doubler, allow Ultra */ 532 if (sc->sc_clock_freq <= 25) { 533 sc->sc_dcntl |= 0x80; /* SCLK/1 */ 534 sc->sc_tcp[0] = sc->sc_tcp[1]; 535 } else if (sc->sc_clock_freq <= 37) { 536 sc->sc_dcntl |= 0x40; /* SCLK/1.5 */ 537 sc->sc_tcp[0] = sc->sc_tcp[2]; 538 } else if (sc->sc_clock_freq <= 50) { 539 sc->sc_dcntl |= 0x00; /* SCLK/2 */ 540 sc->sc_tcp[0] = sc->sc_tcp[3]; 541 } else { 542 sc->sc_dcntl |= 0xc0; /* SCLK/3 */ 543 sc->sc_tcp[0] = 3000 / sc->sc_clock_freq; 544 } 545 546 if (scsi_nosync) { 547 inhibit_sync = (scsi_nosync >> shift_nosync) & 0xffff; 548 shift_nosync += 16; /* XXX maxtarget */ 549 #ifdef DEBUG 550 if (inhibit_sync) 551 printf("%s: Inhibiting synchronous transfer %02x\n", 552 sc->sc_dev.dv_xname, inhibit_sync); 553 #endif 554 for (i = 0; i < 16; ++i) /* XXX maxtarget */ 555 if (inhibit_sync & (1 << i)) 556 siopng_inhibit_sync[i] = 1; 557 } 558 559 siopngreset (sc); 560 } 561 562 void 563 siopngreset(struct siop_softc *sc) 564 { 565 siop_regmap_p rp; 566 u_int i, s; 567 u_short dummy; 568 struct siop_acb *acb; 569 570 rp = sc->sc_siopp; 571 572 if (sc->sc_flags & SIOP_ALIVE) 573 siopngabort(sc, rp, "reset"); 574 575 printf("%s: ", sc->sc_dev.dv_xname); /* XXXX */ 576 577 s = splbio(); 578 579 /* 580 * Reset the chip 581 * XXX - is this really needed? 582 */ 583 rp->siop_istat |= SIOP_ISTAT_ABRT; /* abort current script */ 584 rp->siop_istat |= SIOP_ISTAT_RST; /* reset chip */ 585 rp->siop_istat &= ~SIOP_ISTAT_RST; 586 /* 587 * Reset SCSI bus (do we really want this?) 588 */ 589 rp->siop_sien = 0; 590 rp->siop_scntl1 |= SIOP_SCNTL1_RST; 591 delay(1); 592 rp->siop_scntl1 &= ~SIOP_SCNTL1_RST; 593 594 /* 595 * Set up various chip parameters 596 */ 597 rp->siop_stest1 |= SIOP_STEST1_DBLEN; /* SCLK doubler enable */ 598 delay(20); 599 rp->siop_stest3 |= SIOP_STEST3_HSC; /* Halt SCSI clock */ 600 rp->siop_scntl3 = 0x15; /* SCF/CCF*/ 601 rp->siop_stest1 |= SIOP_STEST1_DBLSEL; /* SCLK doubler select */ 602 rp->siop_stest3 &= ~SIOP_STEST3_HSC; /* Clear Halt SCSI clock */ 603 rp->siop_scntl0 = SIOP_ARB_FULL | /*SIOP_SCNTL0_EPC |*/ SIOP_SCNTL0_EPG; 604 rp->siop_dcntl = sc->sc_dcntl; 605 rp->siop_dmode = 0xc0; /* XXX burst length */ 606 rp->siop_sien = 0x00; /* don't enable interrupts yet */ 607 rp->siop_dien = 0x00; /* don't enable interrupts yet */ 608 rp->siop_scid = sc->sc_channel.chan_id | 609 SIOP_SCID_RRE | SIOP_SCID_SRE; 610 rp->siop_respid = 1 << sc->sc_channel.chan_id; 611 rp->siop_dwt = 0x00; 612 rp->siop_stime0 = 0x0c; /* XXXXX check */ 613 614 /* will need to re-negotiate sync xfers */ 615 bzero(&sc->sc_sync, sizeof (sc->sc_sync)); 616 617 i = rp->siop_istat; 618 if (i & SIOP_ISTAT_SIP) 619 dummy = rp->siop_sist; 620 if (i & SIOP_ISTAT_DIP) 621 dummy = rp->siop_dstat; 622 623 splx (s); 624 625 delay (siopng_reset_delay * 1000); 626 627 /* 628 * is lower half unterminated? 629 */ 630 if ((rp->siop_sbdl & 0x00ff) == 0x00ff) { 631 printf(" no SCSI termination, host adapter deactivated.\n"); 632 sc->sc_channel.chan_ntargets = 0; /* XXX */ 633 sc->sc_flags &= ~(SIOP_ALIVE|SIOP_INTDEFER|SIOP_INTSOFF); 634 /* disable SCSI and DMA interrupts */ 635 sc->sc_sien = 0; 636 sc->sc_dien = 0; 637 rp->siop_sien = sc->sc_sien; 638 rp->siop_dien = sc->sc_dien; 639 640 return; 641 } 642 643 /* 644 * Check if upper half of SCSI bus is unterminated, and disallow 645 * disconnections if it appears to be unterminated. 646 */ 647 if ((rp->siop_sbdl & 0xff00) == 0xff00) { 648 printf(" NO WIDE TERM"); 649 /* XXX need to restrict maximum target ID as well? */ 650 sc->sc_channel.chan_ntargets = 8; 651 for (i = 0; i < 16; ++i) { 652 siopng_allow_disc[i] = 0; 653 siopng_inhibit_wide[i] |= 0x80; 654 } 655 } 656 657 printf("siopng type %s id %d reset V%d\n", 658 siopng_chips[rp->siop_macntl>>4], 659 sc->sc_channel.chan_ntargets, 660 rp->siop_ctest3 >> 4); 661 662 if ((sc->sc_flags & SIOP_ALIVE) == 0) { 663 TAILQ_INIT(&sc->ready_list); 664 TAILQ_INIT(&sc->nexus_list); 665 TAILQ_INIT(&sc->free_list); 666 sc->sc_nexus = NULL; 667 acb = sc->sc_acb; 668 bzero(acb, sizeof(struct siop_acb) * SIOP_NACB); 669 for (i = 0; i < SIOP_NACB; i++) { 670 TAILQ_INSERT_TAIL(&sc->free_list, acb, chain); 671 acb++; 672 } 673 bzero(sc->sc_tinfo, sizeof(sc->sc_tinfo)); 674 } else { 675 if (sc->sc_nexus != NULL) { 676 sc->sc_nexus->xs->error = XS_RESET; 677 siopng_scsidone(sc->sc_nexus, sc->sc_nexus->stat[0]); 678 } 679 while ((acb = sc->nexus_list.tqh_first) > 0) { 680 acb->xs->error = XS_RESET; 681 siopng_scsidone(acb, acb->stat[0]); 682 } 683 } 684 685 sc->sc_flags |= SIOP_ALIVE; 686 sc->sc_flags &= ~(SIOP_INTDEFER|SIOP_INTSOFF); 687 /* enable SCSI and DMA interrupts */ 688 sc->sc_sien = SIOP_SIEN_MA | SIOP_SIEN_STO | /*SIOP_SIEN_GEN |*/ 689 /*SIOP_SIEN_SEL |*/ SIOP_SIEN_SGE | SIOP_SIEN_UDC | 690 SIOP_SIEN_RST | SIOP_SIEN_PAR; 691 sc->sc_dien = SIOP_DIEN_BF | SIOP_DIEN_ABRT | SIOP_DIEN_SIR | 692 /*SIOP_DIEN_WTD |*/ SIOP_DIEN_IID; 693 rp->siop_sien = sc->sc_sien; 694 rp->siop_dien = sc->sc_dien; 695 /*siopng_dump_registers(sc);*/ 696 } 697 698 /* 699 * Setup Data Storage for 53C720/770 and start SCRIPTS processing 700 */ 701 702 void 703 siopng_start(struct siop_softc *sc, int target, int lun, u_char *cbuf, 704 int clen, u_char *buf, int len) 705 { 706 siop_regmap_p rp = sc->sc_siopp; 707 int nchain; 708 int count, tcount; 709 char *addr, *dmaend; 710 struct siop_acb *acb = sc->sc_nexus; 711 #ifdef DEBUG 712 int i; 713 #endif 714 715 #ifdef DEBUG 716 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 717 printf ("ACK! siopng was busy: rp %p script %p dsa %p active %ld\n", 718 rp, &siopng_scripts, &acb->ds, sc->sc_active); 719 printf ("istat %02x sfbr %02x respid %02x sien %04x dien %02x\n", 720 rp->siop_istat, rp->siop_sfbr, rp->siop_respid, 721 rp->siop_sien, rp->siop_dien); 722 #ifdef DDB 723 /*Debugger();*/ 724 #endif 725 } 726 #endif 727 acb->msgout[0] = MSG_IDENTIFY | lun; 728 if (siopng_allow_disc[target] & 2 || 729 (siopng_allow_disc[target] && len == 0)) 730 acb->msgout[0] = MSG_IDENTIFY_DR | lun; 731 acb->status = 0; 732 acb->stat[0] = -1; 733 acb->msg[0] = -1; 734 acb->ds.scsi_addr = (target << 16) | (sc->sc_sync[target].sxfer << 8) | 735 (sc->sc_sync[target].scntl3 << 24); 736 acb->ds.idlen = 1; 737 acb->ds.idbuf = (char *) kvtop(&acb->msgout[0]); 738 acb->ds.cmdlen = clen; 739 acb->ds.cmdbuf = (char *) kvtop(cbuf); 740 acb->ds.stslen = 1; 741 acb->ds.stsbuf = (char *) kvtop(&acb->stat[0]); 742 acb->ds.msglen = 1; 743 acb->ds.msgbuf = (char *) kvtop(&acb->msg[0]); 744 acb->msg[1] = -1; 745 acb->ds.msginlen = 1; 746 acb->ds.extmsglen = 1; 747 acb->ds.synmsglen = 3; 748 acb->ds.msginbuf = acb->ds.msgbuf + 1; 749 acb->ds.extmsgbuf = acb->ds.msginbuf + 1; 750 acb->ds.synmsgbuf = acb->ds.extmsgbuf + 1; 751 bzero(&acb->ds.chain, sizeof (acb->ds.chain)); 752 753 if (sc->sc_sync[target].state == NEG_WIDE) { 754 if (siopng_inhibit_wide[target]) { 755 sc->sc_sync[target].state = NEG_SYNC; 756 sc->sc_sync[target].scntl3 &= ~SIOP_SCNTL3_EWS; 757 #ifdef DEBUG 758 if (siopngsync_debug) 759 printf ("Forcing target %d narrow\n", target); 760 #endif 761 } 762 else { 763 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 764 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 765 acb->msg[2] = -1; 766 acb->msgout[1] = MSG_EXT_MESSAGE; 767 acb->msgout[2] = 2; 768 acb->msgout[3] = MSG_WIDE_REQ; 769 acb->msgout[4] = 1; 770 acb->ds.idlen = 5; 771 acb->ds.synmsglen = 2; 772 sc->sc_sync[target].state = NEG_WAITW; 773 #ifdef DEBUG 774 if (siopngsync_debug) 775 printf("Sending wide request to target %d\n", target); 776 #endif 777 } 778 } 779 if (sc->sc_sync[target].state == NEG_SYNC) { 780 if (siopng_inhibit_sync[target]) { 781 sc->sc_sync[target].state = NEG_DONE; 782 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 783 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 784 sc->sc_sync[target].sxfer = 0; 785 #ifdef DEBUG 786 if (siopngsync_debug) 787 printf ("Forcing target %d asynchronous\n", target); 788 #endif 789 } 790 else { 791 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 792 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 793 acb->msg[2] = -1; 794 acb->msgout[1] = MSG_EXT_MESSAGE; 795 acb->msgout[2] = 3; 796 acb->msgout[3] = MSG_SYNC_REQ; 797 #ifdef MAXTOR_SYNC_KLUDGE 798 acb->msgout[4] = 50 / 4; /* ask for ridiculous period */ 799 #else 800 acb->msgout[4] = sc->sc_minsync; 801 #endif 802 acb->msgout[5] = SIOP_MAX_OFFSET; 803 acb->ds.idlen = 6; 804 sc->sc_sync[target].state = NEG_WAITS; 805 #ifdef DEBUG 806 if (siopngsync_debug) 807 printf ("Sending sync request to target %d\n", target); 808 #endif 809 } 810 } 811 812 /* 813 * Build physical DMA addresses for scatter/gather I/O 814 */ 815 acb->iob_buf = buf; 816 acb->iob_len = len; 817 acb->iob_curbuf = acb->iob_curlen = 0; 818 nchain = 0; 819 count = len; 820 addr = buf; 821 dmaend = NULL; 822 while (count > 0) { 823 acb->ds.chain[nchain].databuf = (char *) kvtop (addr); 824 if (count < (tcount = NBPG - ((int) addr & PGOFSET))) 825 tcount = count; 826 827 #if DEBUG_ONLY_IF_DESPERATE 828 printf("chain[%d]: count %d tcount %d vaddr %p paddr %p\n", 829 nchain, count, tcount, addr, 830 acb->ds.chain[nchain].databuf); 831 #endif 832 acb->ds.chain[nchain].datalen = tcount; 833 addr += tcount; 834 count -= tcount; 835 if (acb->ds.chain[nchain].databuf == dmaend) { 836 dmaend += acb->ds.chain[nchain].datalen; 837 acb->ds.chain[nchain].datalen = 0; 838 acb->ds.chain[--nchain].datalen += tcount; 839 #ifdef DEBUG 840 ++siopngdma_hits; 841 #endif 842 } 843 else { 844 dmaend = acb->ds.chain[nchain].databuf + 845 acb->ds.chain[nchain].datalen; 846 acb->ds.chain[nchain].datalen = tcount; 847 #ifdef DEBUG 848 if (nchain) /* Don't count miss on first one */ 849 ++siopngdma_misses; 850 #endif 851 } 852 ++nchain; 853 } 854 #ifdef DEBUG 855 if (nchain != 1 && len != 0 && siopng_debug & 3) { 856 printf ("DMA chaining set: %d\n", nchain); 857 for (i = 0; i < nchain; ++i) { 858 printf (" [%d] %8p %lx\n", i, acb->ds.chain[i].databuf, 859 acb->ds.chain[i].datalen); 860 } 861 } 862 #endif 863 864 /* push data cache for all data the 53c720/770 needs to access */ 865 dma_cachectl ((caddr_t)acb, sizeof (struct siop_acb)); 866 dma_cachectl (cbuf, clen); 867 if (buf != NULL && len != 0) 868 dma_cachectl (buf, len); 869 #ifdef DEBUG 870 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 871 printf ("ACK! siopng was busy at start: rp %p script %p dsa %p active %ld\n", 872 rp, &siopng_scripts, &acb->ds, sc->sc_active); 873 #ifdef DDB 874 /*Debugger();*/ 875 #endif 876 } 877 #endif 878 if (sc->nexus_list.tqh_first == NULL) { 879 if (rp->siop_istat & SIOP_ISTAT_CON) 880 printf("%s: siopng_select while connected?\n", 881 sc->sc_dev.dv_xname); 882 rp->siop_temp = 0; 883 #ifndef FIXME 884 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 885 #endif 886 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 887 rp->siop_dsp = sc->sc_scriptspa; 888 SIOP_TRACE('s',1,0,0) 889 } else { 890 if ((rp->siop_istat & SIOP_ISTAT_CON) == 0) { 891 rp->siop_istat = SIOP_ISTAT_SIGP; 892 SIOP_TRACE('s',2,0,0); 893 } 894 else { 895 SIOP_TRACE('s',3,rp->siop_istat,0); 896 } 897 } 898 #ifdef DEBUG 899 ++siopngstarts; 900 #endif 901 } 902 903 /* 904 * Process a DMA or SCSI interrupt from the 53C720/770 SIOP 905 */ 906 907 int 908 siopng_checkintr(struct siop_softc *sc, u_char istat, u_char dstat, 909 u_short sist, int *status) 910 { 911 siop_regmap_p rp = sc->sc_siopp; 912 struct siop_acb *acb = sc->sc_nexus; 913 int target = 0; 914 int dfifo, dbc, sstat0, sstat1, sstat2; 915 916 dfifo = rp->siop_dfifo; 917 dbc = rp->siop_dbc0; 918 sstat0 = rp->siop_sstat0; 919 sstat1 = rp->siop_sstat1; 920 sstat2 = rp->siop_sstat2; 921 rp->siop_ctest3 |= SIOP_CTEST8_CLF; 922 while ((rp->siop_ctest1 & SIOP_CTEST1_FMT) != SIOP_CTEST1_FMT) 923 ; 924 rp->siop_ctest3 &= ~SIOP_CTEST8_CLF; 925 #ifdef DEBUG 926 ++siopngints; 927 #if 0 928 if (siopng_debug & 0x100) { 929 DCIAS(&acb->stat[0]); /* XXX */ 930 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %x sbcl %x sts %x msg %x\n", 931 istat, dstat, sist, rp->siop_dsps, rp->siop_sbcl, acb->stat[0], acb->msg[0]); 932 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 933 acb->msg[0], acb->msg[1], acb->msg[2], 934 acb->msg[3], acb->msg[4], acb->msg[5]); 935 } 936 #endif 937 if (rp->siop_dsp && (rp->siop_dsp < sc->sc_scriptspa || 938 rp->siop_dsp >= sc->sc_scriptspa + sizeof(siopng_scripts))) { 939 printf ("%s: dsp not within script dsp %lx scripts %lx:%lx", 940 sc->sc_dev.dv_xname, rp->siop_dsp, sc->sc_scriptspa, 941 sc->sc_scriptspa + sizeof(siopng_scripts)); 942 printf(" istat %x dstat %x sist %x\n", 943 istat, dstat, sist); 944 #ifdef DDB 945 Debugger(); 946 #endif 947 } 948 #endif 949 SIOP_TRACE('i',dstat,istat,(istat&SIOP_ISTAT_DIP)?rp->siop_dsps&0xff:sist); 950 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff00) { 951 /* Normal completion status, or check condition */ 952 #ifdef DEBUG 953 if (rp->siop_dsa != kvtop((caddr_t)&acb->ds)) { 954 printf ("siopng: invalid dsa: %lx %x\n", rp->siop_dsa, 955 kvtop((caddr_t)&acb->ds)); 956 panic("*** siopng DSA invalid ***"); 957 } 958 #endif 959 target = acb->xs->xs_periph->periph_target; 960 if (sc->sc_sync[target].state == NEG_WAITW) { 961 if (acb->msg[1] == 0xff) 962 printf ("%s: target %d ignored wide request\n", 963 sc->sc_dev.dv_xname, target); 964 else if (acb->msg[1] == MSG_REJECT) 965 printf ("%s: target %d rejected wide request\n", 966 sc->sc_dev.dv_xname, target); 967 else { 968 printf("%s: target %d (wide) %02x %02x %02x %02x\n", 969 sc->sc_dev.dv_xname, target, acb->msg[1], 970 acb->msg[2], acb->msg[3], acb->msg[4]); 971 if (acb->msg[1] == MSG_EXT_MESSAGE && 972 acb->msg[2] == 2 && 973 acb->msg[3] == MSG_WIDE_REQ) 974 sc->sc_sync[target].scntl3 = acb->msg[4] ? 975 sc->sc_sync[target].scntl3 | SIOP_SCNTL3_EWS : 976 sc->sc_sync[target].scntl3 & ~SIOP_SCNTL3_EWS; 977 } 978 sc->sc_sync[target].state = NEG_SYNC; 979 } 980 if (sc->sc_sync[target].state == NEG_WAITS) { 981 if (acb->msg[1] == 0xff) 982 printf ("%s: target %d ignored sync request\n", 983 sc->sc_dev.dv_xname, target); 984 else if (acb->msg[1] == MSG_REJECT) 985 printf ("%s: target %d rejected sync request\n", 986 sc->sc_dev.dv_xname, target); 987 else 988 /* XXX - need to set sync transfer parameters */ 989 printf("%s: target %d (sync) %02x %02x %02x\n", 990 sc->sc_dev.dv_xname, target, acb->msg[1], 991 acb->msg[2], acb->msg[3]); 992 sc->sc_sync[target].state = NEG_DONE; 993 } 994 dma_cachectl(&acb->stat[0], 1); 995 *status = acb->stat[0]; 996 #ifdef DEBUG 997 if (rp->siop_sbcl & SIOP_BSY) { 998 /*printf ("ACK! siop was busy at end: rp %x script %x dsa %x\n", 999 rp, &siopng_scripts, &acb->ds);*/ 1000 #ifdef DDB 1001 /*Debugger();*/ 1002 #endif 1003 } 1004 if (acb->msg[0] != 0x00) 1005 printf("%s: message was not COMMAND COMPLETE: %x\n", 1006 sc->sc_dev.dv_xname, acb->msg[0]); 1007 #endif 1008 if (sc->nexus_list.tqh_first) 1009 rp->siop_dcntl |= SIOP_DCNTL_STD; 1010 return 1; 1011 } 1012 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0b) { 1013 target = acb->xs->xs_periph->periph_target; 1014 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 2 && 1015 acb->msg[3] == MSG_WIDE_REQ) { 1016 #ifdef DEBUG 1017 if (siopngsync_debug) 1018 printf ("wide msg in: %02x %02x %02x %02x %02x %02x\n", 1019 acb->msg[0], acb->msg[1], acb->msg[2], 1020 acb->msg[3], acb->msg[4], acb->msg[5]); 1021 #endif 1022 sc->sc_sync[target].scntl3 &= ~(SIOP_SCNTL3_EWS); 1023 if (acb->msg[2] == 2 && 1024 acb->msg[3] == MSG_WIDE_REQ && 1025 acb->msg[4] != 0) { 1026 sc->sc_sync[target].scntl3 |= SIOP_SCNTL3_EWS; 1027 printf ("%s: target %d now wide %d\n", 1028 sc->sc_dev.dv_xname, target, 1029 acb->msg[4]); 1030 } 1031 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1032 if (sc->sc_sync[target].state == NEG_WAITW) { 1033 sc->sc_sync[target].state = NEG_SYNC; 1034 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1035 return(0); 1036 } 1037 rp->siop_dcntl |= SIOP_DCNTL_STD; 1038 sc->sc_sync[target].state = NEG_SYNC; 1039 return (0); 1040 } 1041 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 3 && 1042 acb->msg[3] == MSG_SYNC_REQ) { 1043 #ifdef DEBUG 1044 if (siopngsync_debug) 1045 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 1046 acb->msg[0], acb->msg[1], acb->msg[2], 1047 acb->msg[3], acb->msg[4], acb->msg[5]); 1048 #endif 1049 sc->sc_sync[target].sxfer = 0; 1050 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 1051 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 1052 if (acb->msg[2] == 3 && 1053 acb->msg[3] == MSG_SYNC_REQ && 1054 acb->msg[5] != 0) { 1055 #ifdef MAXTOR_KLUDGE 1056 /* 1057 * Kludge for my Maxtor XT8580S 1058 * It accepts whatever we request, even 1059 * though it won't work. So we ask for 1060 * a short period than we can handle. If 1061 * the device says it can do it, use 208ns. 1062 * If the device says it can do less than 1063 * 100ns, then we limit it to 100ns. 1064 */ 1065 if (acb->msg[4] && acb->msg[4] < 100 / 4) { 1066 #ifdef DEBUG 1067 printf ("%d: target %d wanted %dns period\n", 1068 sc->sc_dev.dv_xname, target, 1069 acb->msg[4] * 4); 1070 #endif 1071 if (acb->msg[4] == 50 / 4) 1072 acb->msg[4] = 208 / 4; 1073 else 1074 acb->msg[4] = 100 / 4; 1075 } 1076 #endif /* MAXTOR_KLUDGE */ 1077 printf ("%s: target %d now synchronous, period=%dns, offset=%d\n", 1078 sc->sc_dev.dv_xname, target, 1079 (acb->msg[4] == 12) ? 50 : acb->msg[4] * 4, 1080 acb->msg[5]); 1081 scsi_period_to_siopng (sc, target); 1082 } 1083 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1084 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1085 if (sc->sc_sync[target].state == NEG_WAITS) { 1086 sc->sc_sync[target].state = NEG_DONE; 1087 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1088 return(0); 1089 } 1090 rp->siop_dcntl |= SIOP_DCNTL_STD; 1091 sc->sc_sync[target].state = NEG_DONE; 1092 return (0); 1093 } 1094 /* XXX - not SDTR message */ 1095 } 1096 if (sist & SIOP_SIST_MA) { /* Phase mismatch */ 1097 #ifdef DEBUG 1098 ++siopngphmm; 1099 if (acb == NULL) 1100 printf("%s: Phase mismatch with no active command?\n", 1101 sc->sc_dev.dv_xname); 1102 #endif 1103 if (acb->iob_len) { 1104 int adjust; 1105 adjust = ((dfifo - (dbc & 0x7f)) & 0x7f); 1106 if (sstat0 & SIOP_SSTAT0_OLF) /* sstat0 SODL lsb */ 1107 ++adjust; 1108 if (sstat0 & SIOP_SSTAT0_ORF) /* sstat0 SODR lsb */ 1109 ++adjust; 1110 if (sstat2 & SIOP_SSTAT2_OLF1) /* sstat2 SODL msb */ 1111 ++adjust; 1112 if (sstat2 & SIOP_SSTAT2_ORF1) /* sstat2 SODR msb */ 1113 ++adjust; 1114 acb->iob_curlen = *((long *)&rp->siop_dcmd) & 0xffffff; 1115 acb->iob_curlen += adjust; 1116 acb->iob_curbuf = *((long *)&rp->siop_dnad) - adjust; 1117 #ifdef DEBUG 1118 if (siopng_debug & 0x100) { 1119 int i; 1120 printf ("Phase mismatch: curbuf %lx curlen %lx dfifo %x dbc %x sstat1 %x adjust %x sbcl %x starts %d acb %p\n", 1121 acb->iob_curbuf, acb->iob_curlen, dfifo, 1122 dbc, sstat1, adjust, rp->siop_sbcl, siopngstarts, acb); 1123 if (acb->ds.chain[1].datalen) { 1124 for (i = 0; acb->ds.chain[i].datalen; ++i) 1125 printf("chain[%d] addr %p len %lx\n", 1126 i, acb->ds.chain[i].databuf, 1127 acb->ds.chain[i].datalen); 1128 } 1129 } 1130 #endif 1131 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1132 } 1133 #ifdef DEBUG 1134 SIOP_TRACE('m',rp->siop_sbcl,(rp->siop_dsp>>8),rp->siop_dsp); 1135 if (siopng_debug & 9) 1136 printf ("Phase mismatch: %x dsp +%lx dcmd %lx\n", 1137 rp->siop_sbcl, 1138 rp->siop_dsp - sc->sc_scriptspa, 1139 *((long *)&rp->siop_dcmd)); 1140 #endif 1141 if ((rp->siop_sbcl & SIOP_REQ) == 0) { 1142 printf ("Phase mismatch: REQ not asserted! %02x dsp %lx\n", 1143 rp->siop_sbcl, rp->siop_dsp); 1144 #if defined(DEBUG) && defined(DDB) 1145 Debugger(); 1146 #endif 1147 } 1148 switch (rp->siop_sbcl & 7) { 1149 case 0: /* data out */ 1150 case 1: /* data in */ 1151 case 2: /* status */ 1152 case 3: /* command */ 1153 case 6: /* message in */ 1154 case 7: /* message out */ 1155 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1156 break; 1157 default: 1158 goto bad_phase; 1159 } 1160 return 0; 1161 } 1162 if (sist & SIOP_SIST_STO) { /* Select timed out */ 1163 #ifdef DEBUG 1164 if (acb == NULL) 1165 printf("%s: Select timeout with no active command?\n", 1166 sc->sc_dev.dv_xname); 1167 if (rp->siop_sbcl & SIOP_BSY) { 1168 printf ("ACK! siop was busy at timeout: rp %p script %p dsa %p\n", 1169 rp, &siopng_scripts, &acb->ds); 1170 printf(" sbcl %x sdid %x istat %x dstat %x sist %x\n", 1171 rp->siop_sbcl, rp->siop_sdid, istat, dstat, sist); 1172 if (!(rp->siop_sbcl & SIOP_BSY)) { 1173 printf ("Yikes, it's not busy now!\n"); 1174 #if 0 1175 *status = -1; 1176 if (sc->nexus_list.tqh_first) 1177 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1178 return 1; 1179 #endif 1180 } 1181 /* rp->siop_dcntl |= SIOP_DCNTL_STD;*/ 1182 return (0); 1183 #ifdef DDB 1184 Debugger(); 1185 #endif 1186 } 1187 #endif 1188 *status = -1; 1189 acb->xs->error = XS_SELTIMEOUT; 1190 if (sc->nexus_list.tqh_first) 1191 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1192 return 1; 1193 } 1194 if (acb) 1195 target = acb->xs->xs_periph->periph_target; 1196 else 1197 target = 7; 1198 if (sist & SIOP_SIST_UDC) { 1199 #ifdef DEBUG 1200 if (acb == NULL) 1201 printf("%s: Unexpected disconnect with no active command?\n", 1202 sc->sc_dev.dv_xname); 1203 printf ("%s: target %d disconnected unexpectedly\n", 1204 sc->sc_dev.dv_xname, target); 1205 siopng_dump_registers(sc); 1206 siopng_dump(sc); 1207 #endif 1208 #if 0 1209 siopngabort (sc, rp, "siopngchkintr"); 1210 #endif 1211 *status = STS_BUSY; 1212 if (sc->nexus_list.tqh_first) 1213 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1214 return (acb != NULL); 1215 } 1216 if (dstat & SIOP_DSTAT_SIR && (rp->siop_dsps == 0xff01 || 1217 rp->siop_dsps == 0xff02)) { 1218 #ifdef DEBUG 1219 if (siopng_debug & 0x100) 1220 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", 1221 sc->sc_dev.dv_xname, 1 << target, rp->siop_temp, 1222 rp->siop_temp ? rp->siop_temp - sc->sc_scriptspa : 0, 1223 acb->iob_curbuf, acb->iob_curlen, 1224 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen, dfifo, dbc, sstat1, siopngstarts, acb); 1225 #endif 1226 if (acb == NULL) { 1227 printf("%s: Disconnect with no active command?\n", 1228 sc->sc_dev.dv_xname); 1229 return (0); 1230 } 1231 /* 1232 * XXXX need to update iob_curbuf/iob_curlen to reflect 1233 * current data transferred. If device disconnected in 1234 * the middle of a DMA block, they should already be set 1235 * by the phase change interrupt. If the disconnect 1236 * occurs on a DMA block boundary, we have to figure out 1237 * which DMA block it was. 1238 */ 1239 if (acb->iob_len && rp->siop_temp) { 1240 int n = rp->siop_temp - sc->sc_scriptspa; 1241 1242 if (acb->iob_curlen && acb->iob_curlen != acb->ds.chain[0].datalen) 1243 printf("%s: iob_curbuf/len already set? n %x iob %lx/%lx chain[0] %p/%lx\n", 1244 sc->sc_dev.dv_xname, n, acb->iob_curbuf, acb->iob_curlen, 1245 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen); 1246 if (n < Ent_datain) 1247 n = (n - Ent_dataout) / 16; 1248 else 1249 n = (n - Ent_datain) / 16; 1250 if (n <= 0 && n > DMAMAXIO) 1251 printf("TEMP invalid %d\n", n); 1252 else { 1253 acb->iob_curbuf = (u_long)acb->ds.chain[n].databuf; 1254 acb->iob_curlen = acb->ds.chain[n].datalen; 1255 } 1256 #ifdef DEBUG 1257 if (siopng_debug & 0x100) { 1258 printf("%s: TEMP offset %d", sc->sc_dev.dv_xname, n); 1259 printf(" curbuf %lx curlen %lx\n", acb->iob_curbuf, 1260 acb->iob_curlen); 1261 } 1262 #endif 1263 } 1264 /* 1265 * If data transfer was interrupted by disconnect, iob_curbuf 1266 * and iob_curlen should reflect the point of interruption. 1267 * Adjust the DMA chain so that the data transfer begins 1268 * at the appropriate place upon reselection. 1269 * XXX This should only be done on save data pointer message? 1270 */ 1271 if (acb->iob_curlen) { 1272 int i, j; 1273 1274 #ifdef DEBUG 1275 if (siopng_debug & 0x100) 1276 printf ("%s: adjusting DMA chain\n", 1277 sc->sc_dev.dv_xname); 1278 if (rp->siop_dsps == 0xff02) 1279 printf ("%s: ID %02x disconnected without Save Data Pointers\n", 1280 sc->sc_dev.dv_xname, 1 << target); 1281 #endif 1282 for (i = 0; i < DMAMAXIO; ++i) { 1283 if (acb->ds.chain[i].datalen == 0) 1284 break; 1285 if (acb->iob_curbuf >= (long)acb->ds.chain[i].databuf && 1286 acb->iob_curbuf < (long)(acb->ds.chain[i].databuf + 1287 acb->ds.chain[i].datalen)) 1288 break; 1289 } 1290 if (i >= DMAMAXIO || acb->ds.chain[i].datalen == 0) { 1291 printf("couldn't find saved data pointer: "); 1292 printf("curbuf %lx curlen %lx i %d\n", 1293 acb->iob_curbuf, acb->iob_curlen, i); 1294 #ifdef DDB 1295 Debugger(); 1296 #endif 1297 } 1298 #ifdef DEBUG 1299 if (siopng_debug & 0x100) 1300 printf(" chain[0]: %p/%lx -> %lx/%lx\n", 1301 acb->ds.chain[0].databuf, 1302 acb->ds.chain[0].datalen, 1303 acb->iob_curbuf, 1304 acb->iob_curlen); 1305 #endif 1306 acb->ds.chain[0].databuf = (char *)acb->iob_curbuf; 1307 acb->ds.chain[0].datalen = acb->iob_curlen; 1308 for (j = 1, ++i; i < DMAMAXIO && acb->ds.chain[i].datalen; ++i, ++j) { 1309 #ifdef DEBUG 1310 if (siopng_debug & 0x100) 1311 printf(" chain[%d]: %p/%lx -> %p/%lx\n", j, 1312 acb->ds.chain[j].databuf, 1313 acb->ds.chain[j].datalen, 1314 acb->ds.chain[i].databuf, 1315 acb->ds.chain[i].datalen); 1316 #endif 1317 acb->ds.chain[j].databuf = acb->ds.chain[i].databuf; 1318 acb->ds.chain[j].datalen = acb->ds.chain[i].datalen; 1319 } 1320 if (j < DMAMAXIO) 1321 acb->ds.chain[j].datalen = 0; 1322 DCIAS(kvtop((caddr_t)&acb->ds.chain)); 1323 } 1324 ++sc->sc_tinfo[target].dconns; 1325 /* 1326 * add nexus to waiting list 1327 * clear nexus 1328 * try to start another command for another target/lun 1329 */ 1330 acb->status = sc->sc_flags & SIOP_INTSOFF; 1331 TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain); 1332 sc->sc_nexus = NULL; /* no current device */ 1333 /* start script to wait for reselect */ 1334 if (sc->sc_nexus == NULL) 1335 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1336 /* XXXX start another command ? */ 1337 if (sc->ready_list.tqh_first) 1338 siopng_sched(sc); 1339 #if 0 1340 else 1341 rp->siop_dcntl |= SIOP_DCNTL_STD; 1342 #endif 1343 return (0); 1344 } 1345 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff03) { 1346 int reselid = rp->siop_scratcha & 0x7f; 1347 int reselun = rp->siop_sfbr & 0x07; 1348 1349 sc->sc_sstat1 = rp->siop_sbcl; /* XXXX save current SBCL */ 1350 #ifdef DEBUG 1351 if (siopng_debug & 0x100) 1352 printf ("%s: target ID %02x reselected dsps %lx\n", 1353 sc->sc_dev.dv_xname, reselid, 1354 rp->siop_dsps); 1355 if ((rp->siop_sfbr & 0x80) == 0) 1356 printf("%s: Reselect message in was not identify: %x\n", 1357 sc->sc_dev.dv_xname, rp->siop_sfbr); 1358 #endif 1359 if (sc->sc_nexus) { 1360 #ifdef DEBUG 1361 if (siopng_debug & 0x100) 1362 printf ("%s: reselect ID %02x w/active\n", 1363 sc->sc_dev.dv_xname, reselid); 1364 #endif 1365 TAILQ_INSERT_HEAD(&sc->ready_list, sc->sc_nexus, chain); 1366 sc->sc_tinfo[sc->sc_nexus->xs->xs_periph->periph_target].lubusy 1367 &= ~(1 << sc->sc_nexus->xs->xs_periph->periph_lun); 1368 --sc->sc_active; 1369 } 1370 /* 1371 * locate acb of reselecting device 1372 * set sc->sc_nexus to acb 1373 */ 1374 for (acb = sc->nexus_list.tqh_first; acb; 1375 acb = acb->chain.tqe_next) { 1376 if (reselid != ((acb->ds.scsi_addr >> 16) & 0xff) || 1377 reselun != (acb->msgout[0] & 0x07)) 1378 continue; 1379 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 1380 sc->sc_nexus = acb; 1381 sc->sc_flags |= acb->status; 1382 acb->status = 0; 1383 DCIAS(kvtop(&acb->stat[0])); 1384 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 1385 rp->siop_sxfer = 1386 sc->sc_sync[acb->xs->xs_periph->periph_target].sxfer; 1387 #ifndef FIXME 1388 rp->siop_scntl3 = 1389 sc->sc_sync[acb->xs->xs_periph->periph_target].scntl3; 1390 #endif 1391 break; 1392 } 1393 if (acb == NULL) { 1394 printf("%s: target ID %02x reselect nexus_list %p\n", 1395 sc->sc_dev.dv_xname, reselid, 1396 sc->nexus_list.tqh_first); 1397 panic("unable to find reselecting device"); 1398 } 1399 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1400 rp->siop_temp = 0; 1401 rp->siop_dcntl |= SIOP_DCNTL_STD; 1402 return (0); 1403 } 1404 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff04) { 1405 #ifdef DEBUG 1406 u_short ctest2 = rp->siop_ctest2; 1407 1408 /* reselect was interrupted (by Sig_P or select) */ 1409 if (siopng_debug & 0x100 || 1410 (ctest2 & SIOP_CTEST2_SIGP) == 0) 1411 printf ("%s: reselect interrupted (Sig_P?) scntl1 %x ctest2 %x sfbr %x istat %x/%x\n", 1412 sc->sc_dev.dv_xname, rp->siop_scntl1, 1413 ctest2, rp->siop_sfbr, istat, rp->siop_istat); 1414 #endif 1415 /* XXX assumes it was not select */ 1416 if (sc->sc_nexus == NULL) { 1417 #ifdef DEBUG 1418 printf("%s: reselect interrupted, sc_nexus == NULL\n", 1419 sc->sc_dev.dv_xname); 1420 #if 0 1421 siopng_dump(sc); 1422 #ifdef DDB 1423 Debugger(); 1424 #endif 1425 #endif 1426 #endif 1427 rp->siop_dcntl |= SIOP_DCNTL_STD; 1428 return(0); 1429 } 1430 target = sc->sc_nexus->xs->xs_periph->periph_target; 1431 rp->siop_temp = 0; 1432 rp->siop_dsa = kvtop((caddr_t)&sc->sc_nexus->ds); 1433 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1434 #ifndef FIXME 1435 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1436 #endif 1437 rp->siop_dsp = sc->sc_scriptspa; 1438 return (0); 1439 } 1440 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff06) { 1441 if (acb == NULL) 1442 printf("%s: Bad message-in with no active command?\n", 1443 sc->sc_dev.dv_xname); 1444 /* Unrecognized message in byte */ 1445 dma_cachectl (&acb->msg[1],1); 1446 printf ("%s: Unrecognized message in data sfbr %x msg %x sbcl %x\n", 1447 sc->sc_dev.dv_xname, rp->siop_sfbr, acb->msg[1], rp->siop_sbcl); 1448 /* what should be done here? */ 1449 DCIAS(kvtop(&acb->msg[1])); 1450 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1451 return (0); 1452 } 1453 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0a) { 1454 /* Status phase wasn't followed by message in phase? */ 1455 printf ("%s: Status phase not followed by message in phase? sbcl %x sbdl %x\n", 1456 sc->sc_dev.dv_xname, rp->siop_sbcl, rp->siop_sbdl); 1457 if (rp->siop_sbcl == 0xa7) { 1458 /* It is now, just continue the script? */ 1459 rp->siop_dcntl |= SIOP_DCNTL_STD; 1460 return (0); 1461 } 1462 } 1463 if (sist == 0 && dstat & SIOP_DSTAT_SIR) { 1464 dma_cachectl (&acb->stat[0], 1); 1465 dma_cachectl (&acb->msg[0], 1); 1466 printf ("SIOP interrupt: %lx sts %x msg %x %x sbcl %x\n", 1467 rp->siop_dsps, acb->stat[0], acb->msg[0], acb->msg[1], 1468 rp->siop_sbcl); 1469 siopngreset (sc); 1470 *status = -1; 1471 return 0; /* siopngreset has cleaned up */ 1472 } 1473 if (sist & SIOP_SIST_SGE) 1474 printf ("SIOP: SCSI Gross Error\n"); 1475 if (sist & SIOP_SIST_PAR) 1476 printf ("SIOP: Parity Error\n"); 1477 if (dstat & SIOP_DSTAT_IID) 1478 printf ("SIOP: Invalid instruction detected\n"); 1479 bad_phase: 1480 /* 1481 * temporary panic for unhandled conditions 1482 * displays various things about the 53C720/770 status and registers 1483 * then panics. 1484 * XXXX need to clean this up to print out the info, reset, and continue 1485 */ 1486 printf ("siopngchkintr: target %x ds %p\n", target, &acb->ds); 1487 printf ("scripts %lx ds %x rp %x dsp %lx dcmd %lx\n", sc->sc_scriptspa, 1488 kvtop((caddr_t)&acb->ds), kvtop((caddr_t)rp), rp->siop_dsp, 1489 *((long *)&rp->siop_dcmd)); 1490 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %lx dsa %lx sbcl %x sts %x msg %x %x sfbr %x\n", 1491 istat, dstat, sist, rp->siop_dsps, rp->siop_dsa, 1492 rp->siop_sbcl, acb->stat[0], acb->msg[0], acb->msg[1], rp->siop_sfbr); 1493 #ifdef DEBUG 1494 if (siopng_debug & 0x20) 1495 panic("siopngchkintr: **** temp ****"); 1496 #endif 1497 #ifdef DDB 1498 Debugger (); 1499 #endif 1500 siopngreset (sc); /* hard reset */ 1501 *status = -1; 1502 return 0; /* siopngreset cleaned up */ 1503 } 1504 1505 void 1506 siopng_select(struct siop_softc *sc) 1507 { 1508 siop_regmap_p rp; 1509 struct siop_acb *acb = sc->sc_nexus; 1510 1511 #ifdef DEBUG 1512 if (siopng_debug & 1) 1513 printf ("%s: select ", sc->sc_dev.dv_xname); 1514 #endif 1515 1516 rp = sc->sc_siopp; 1517 if (acb->xs->xs_control & XS_CTL_POLL || siopng_no_dma) { 1518 sc->sc_flags |= SIOP_INTSOFF; 1519 sc->sc_flags &= ~SIOP_INTDEFER; 1520 if ((rp->siop_istat & 0x08) == 0) { 1521 rp->siop_sien = 0; 1522 rp->siop_dien = 0; 1523 } 1524 #if 0 1525 } else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 1526 sc->sc_flags &= ~SIOP_INTSOFF; 1527 if ((rp->siop_istat & 0x08) == 0) { 1528 rp->siop_sien = sc->sc_sien; 1529 rp->siop_dien = sc->sc_dien; 1530 } 1531 #endif 1532 } 1533 #ifdef DEBUG 1534 if (siopng_debug & 1) 1535 printf ("siopng_select: target %x cmd %02x ds %p\n", 1536 acb->xs->xs_periph->periph_target, acb->cmd.opcode, 1537 &sc->sc_nexus->ds); 1538 #endif 1539 1540 siopng_start(sc, acb->xs->xs_periph->periph_target, 1541 acb->xs->xs_periph->periph_lun, 1542 (u_char *)&acb->cmd, acb->clen, acb->daddr, acb->dleft); 1543 1544 return; 1545 } 1546 1547 /* 1548 * 53C720/770 interrupt handler 1549 */ 1550 1551 void 1552 siopngintr(register struct siop_softc *sc) 1553 { 1554 siop_regmap_p rp; 1555 u_char istat, dstat; 1556 u_short sist; 1557 int status; 1558 int s = splbio(); 1559 1560 istat = sc->sc_istat; 1561 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 1562 splx(s); 1563 return; 1564 } 1565 1566 /* Got a valid interrupt on this device */ 1567 rp = sc->sc_siopp; 1568 dstat = sc->sc_dstat; 1569 sist = sc->sc_sist; 1570 if (dstat & SIOP_DSTAT_SIR) 1571 sc->sc_intcode = rp->siop_dsps; 1572 sc->sc_istat = 0; 1573 #ifdef DEBUG 1574 if (siopng_debug & 1) 1575 printf ("%s: intr istat %x dstat %x sist %x\n", 1576 sc->sc_dev.dv_xname, istat, dstat, sist); 1577 if (!sc->sc_active) { 1578 printf ("%s: spurious interrupt? istat %x dstat %x sist %x nexus %p status %x\n", 1579 sc->sc_dev.dv_xname, istat, dstat, sist, 1580 sc->sc_nexus, sc->sc_nexus ? sc->sc_nexus->stat[0] : 0); 1581 } 1582 #endif 1583 1584 #ifdef DEBUG 1585 if (siopng_debug & 5) { 1586 DCIAS(kvtop(&sc->sc_nexus->stat[0])); 1587 printf ("%s: intr istat %x dstat %x sist %x dsps %lx sbcl %x sts %x msg %x\n", 1588 sc->sc_dev.dv_xname, istat, dstat, sist, 1589 rp->siop_dsps, rp->siop_sbcl, 1590 sc->sc_nexus->stat[0], sc->sc_nexus->msg[0]); 1591 } 1592 #endif 1593 if (sc->sc_flags & SIOP_INTDEFER) { 1594 sc->sc_flags &= ~(SIOP_INTDEFER | SIOP_INTSOFF); 1595 rp->siop_sien = sc->sc_sien; 1596 rp->siop_dien = sc->sc_dien; 1597 } 1598 if (siopng_checkintr (sc, istat, dstat, sist, &status)) { 1599 #if 1 1600 if (status == 0xff) 1601 printf ("siopngintr: status == 0xff\n"); 1602 #endif 1603 if ((sc->sc_flags & (SIOP_INTSOFF | SIOP_INTDEFER)) != SIOP_INTSOFF) { 1604 #if 0 1605 if (rp->siop_sbcl & SIOP_BSY) { 1606 printf ("%s: SCSI bus busy at completion", 1607 sc->sc_dev.dv_xname); 1608 printf(" targ %d sbcl %02x sfbr %x respid %02x dsp +%x\n", 1609 sc->sc_nexus->xs->xs_periph->periph_target, 1610 rp->siop_sbcl, rp->siop_sfbr, rp->siop_respid, 1611 rp->siop_dsp - sc->sc_scriptspa); 1612 } 1613 #endif 1614 siopng_scsidone(sc->sc_nexus, sc->sc_nexus ? 1615 sc->sc_nexus->stat[0] : -1); 1616 } 1617 } 1618 splx(s); 1619 } 1620 1621 /* 1622 * This is based on the Progressive Peripherals 33Mhz Zeus driver and will 1623 * not be correct for other 53c710 boards. 1624 * 1625 */ 1626 void 1627 scsi_period_to_siopng(struct siop_softc *sc, int target) 1628 { 1629 int period, offset, sxfer, scntl3 = 0; 1630 1631 period = sc->sc_nexus->msg[4]; 1632 offset = sc->sc_nexus->msg[5]; 1633 #ifdef FIXME 1634 for (scntl3 = 1; scntl3 < 4; ++scntl3) { 1635 sxfer = (period * 4 - 1) / sc->sc_tcp[scntl3] - 3; 1636 if (sxfer >= 0 && sxfer <= 7) 1637 break; 1638 } 1639 if (scntl3 > 3) { 1640 printf("siopng sync: unable to compute sync params for period %dns\n", 1641 period * 4); 1642 /* 1643 * XXX need to pick a value we can do and renegotiate 1644 */ 1645 sxfer = scntl3 = 0; 1646 } else { 1647 sxfer = (sxfer << 4) | ((offset <= SIOP_MAX_OFFSET) ? 1648 offset : SIOP_MAX_OFFSET); 1649 #ifdef DEBUG_SYNC 1650 printf("siopng sync: params for period %dns: sxfer %x scntl3 %x", 1651 period * 4, sxfer, scntl3); 1652 printf(" actual period %dns\n", 1653 sc->sc_tcp[scntl3] * ((sxfer >> 4) + 4)); 1654 #endif /* DEBUG_SYNC */ 1655 } 1656 #else /* FIXME */ 1657 sxfer = offset <= SIOP_MAX_OFFSET ? offset : SIOP_MAX_OFFSET; 1658 sxfer |= 0x20; /* XXX XFERP: 5 */ 1659 #ifndef FIXME 1660 if (period <= (50 / 4)) /* XXX */ 1661 scntl3 = 0x95; /* Ultra, SCF: /1, CCF: /4 */ 1662 else if (period <= (100 / 4)) 1663 scntl3 = 0x35; /* SCF: /2, CCF: /4 */ 1664 else if (period <= (200 / 4)) 1665 scntl3 = 0x55; /* SCF: /4, CCF: /4 */ 1666 else 1667 scntl3 = 0xff; /* XXX ??? */ 1668 #else 1669 scntl3 = 5; 1670 #endif 1671 #endif 1672 sc->sc_sync[target].sxfer = sxfer; 1673 sc->sc_sync[target].scntl3 = scntl3 | 1674 (sc->sc_sync[target].scntl3 & SIOP_SCNTL3_EWS); 1675 #ifdef DEBUG_SYNC 1676 printf ("siopng sync: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1677 #endif 1678 } 1679 1680 void 1681 siopng_dump_registers(struct siop_softc *sc) 1682 { 1683 siop_regmap_p rp = sc->sc_siopp; 1684 1685 printf(" scntl0 %02x scntl1 %02x scntl2 %02x scntl3 %02x\n", 1686 rp->siop_scntl0, rp->siop_scntl1, rp->siop_scntl2, rp->siop_scntl3); 1687 printf(" scid %02x sxfer %02x sdid %02x gpreg %02x\n", 1688 rp->siop_scid, rp->siop_sxfer, rp->siop_sdid, rp->siop_gpreg); 1689 printf(" sfbr %02x socl %02x ssid %02x sbcl %02x\n", 1690 rp->siop_sfbr, rp->siop_socl, rp->siop_ssid, rp->siop_sbcl); 1691 printf(" dstat %02x sstat0 %02x sstat1 %02x sstat2 %02x\n", 1692 rp->siop_dstat, rp->siop_sstat0, rp->siop_sstat1, rp->siop_sstat2); 1693 printf(" ctest0 %02x ctest1 %02x ctest2 %02x ctest3 %02x\n", 1694 rp->siop_ctest0, rp->siop_ctest1, rp->siop_ctest2, rp->siop_ctest3); 1695 printf(" dfifo %02x ctest4 %02x ctest5 %02x ctest6 %02x\n", 1696 0, rp->siop_ctest4, rp->siop_ctest5, rp->siop_ctest6); 1697 printf(" dcmd %02x dbc2 %02x dbc1 %02x dbc0 %02x\n", 1698 rp->siop_dcmd, rp->siop_dbc2, rp->siop_dbc1, rp->siop_dbc0); 1699 printf(" dmode %02x dien %02x dwt %02x dcntl %02x\n", 1700 rp->siop_dmode, rp->siop_dien, rp->siop_dwt, rp->siop_dcntl); 1701 printf(" stest0 %02x stest1 %02x stest2 %02x stest3 %02x\n", 1702 rp->siop_stest0, rp->siop_stest1, rp->siop_stest2, rp->siop_stest3); 1703 printf(" istat %02x sien %04x sist %04x respid %04x\n", 1704 rp->siop_istat, rp->siop_sien, rp->siop_sist, rp->siop_respid); 1705 printf(" sidl %04x sodl %04x sbdl %04x\n", 1706 rp->siop_sidl, rp->siop_sodl, rp->siop_sbdl); 1707 printf(" dsps %08lx dsp %08lx (+%lx)\n", 1708 rp->siop_dsps, rp->siop_dsp, rp->siop_dsp > sc->sc_scriptspa ? 1709 rp->siop_dsp - sc->sc_scriptspa : 0); 1710 printf(" dsa %08lx temp %08lx dnad %08lx\n", 1711 rp->siop_dsa, rp->siop_temp, rp->siop_dnad); 1712 printf(" scratcha %08lx scratchb %08lx adder %08lx\n", 1713 rp->siop_scratcha, rp->siop_scratchb, rp->siop_adder); 1714 } 1715 1716 #ifdef DEBUG 1717 1718 #if SIOP_TRACE_SIZE 1719 void 1720 siopng_dump_trace(void) 1721 { 1722 int i; 1723 1724 printf("siopng trace: next index %d\n", siopng_trix); 1725 i = siopng_trix; 1726 do { 1727 printf("%3d: '%c' %02x %02x %02x\n", i, siopng_trbuf[i], 1728 siopng_trbuf[i + 1], siopng_trbuf[i + 2], siopng_trbuf[i + 3]); 1729 i = (i + 4) & (SIOP_TRACE_SIZE - 1); 1730 } while (i != siopng_trix); 1731 } 1732 #endif 1733 1734 void 1735 siopng_dump_acb(struct siop_acb *acb) 1736 { 1737 u_char *b = (u_char *) &acb->cmd; 1738 int i; 1739 1740 printf("acb@%p ", acb); 1741 if (acb->xs == NULL) { 1742 printf("<unused>\n"); 1743 return; 1744 } 1745 printf("(%d:%d) flags %2x clen %2d cmd ", 1746 acb->xs->xs_periph->periph_target, 1747 acb->xs->xs_periph->periph_lun, acb->flags, acb->clen); 1748 for (i = acb->clen; i; --i) 1749 printf(" %02x", *b++); 1750 printf("\n"); 1751 printf(" xs: %p data %p:%04x ", acb->xs, acb->xs->data, 1752 acb->xs->datalen); 1753 printf("va %p:%lx ", acb->iob_buf, acb->iob_len); 1754 printf("cur %lx:%lx\n", acb->iob_curbuf, acb->iob_curlen); 1755 } 1756 1757 void 1758 siopng_dump(struct siop_softc *sc) 1759 { 1760 struct siop_acb *acb; 1761 siop_regmap_p rp = sc->sc_siopp; 1762 int s; 1763 int i; 1764 1765 s = splbio(); 1766 #if SIOP_TRACE_SIZE 1767 siopng_dump_trace(); 1768 #endif 1769 printf("%s@%p regs %p istat %x\n", 1770 sc->sc_dev.dv_xname, sc, rp, rp->siop_istat); 1771 if ((acb = sc->free_list.tqh_first) > 0) { 1772 printf("Free list:\n"); 1773 while (acb) { 1774 siopng_dump_acb(acb); 1775 acb = acb->chain.tqe_next; 1776 } 1777 } 1778 if ((acb = sc->ready_list.tqh_first) > 0) { 1779 printf("Ready list:\n"); 1780 while (acb) { 1781 siopng_dump_acb(acb); 1782 acb = acb->chain.tqe_next; 1783 } 1784 } 1785 if ((acb = sc->nexus_list.tqh_first) > 0) { 1786 printf("Nexus list:\n"); 1787 while (acb) { 1788 siopng_dump_acb(acb); 1789 acb = acb->chain.tqe_next; 1790 } 1791 } 1792 if (sc->sc_nexus) { 1793 printf("Nexus:\n"); 1794 siopng_dump_acb(sc->sc_nexus); 1795 } 1796 for (i = 0; i < 8; ++i) { 1797 if (sc->sc_tinfo[i].cmds > 2) { 1798 printf("tgt %d: cmds %d disc %d lubusy %x\n", 1799 i, sc->sc_tinfo[i].cmds, 1800 sc->sc_tinfo[i].dconns, 1801 sc->sc_tinfo[i].lubusy); 1802 } 1803 } 1804 splx(s); 1805 } 1806 #endif 1807
Indexes created Thu Oct 02 14:10:14 GMT 2025