siop2.c revision 1.21
1 /* $NetBSD: siop2.c,v 1.21 2003/06/18 08:58:36 drochner 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 1.21 2003/06/18 08:58:36 drochner 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/buf.h> 56 #include <sys/malloc.h> 57 58 #include <uvm/uvm_extern.h> 59 60 #include <dev/scsipi/scsi_all.h> 61 #include <dev/scsipi/scsipi_all.h> 62 #include <dev/scsipi/scsiconf.h> 63 #include <machine/cpu.h> 64 #ifdef __m68k__ 65 #include <m68k/include/cacheops.h> 66 #endif 67 #include <amiga/amiga/custom.h> 68 #include <amiga/amiga/isr.h> 69 70 #define ARCH_720 71 72 #include <amiga/dev/siopreg.h> 73 #include <amiga/dev/siopvar.h> 74 75 /* 76 * SCSI delays 77 * In u-seconds, primarily for state changes on the SPC. 78 */ 79 #define SCSI_CMD_WAIT 500000 /* wait per step of 'immediate' cmds */ 80 #define SCSI_DATA_WAIT 500000 /* wait per data in/out step */ 81 #define SCSI_INIT_WAIT 500000 /* wait per step (both) during init */ 82 83 void siopng_select(struct siop_softc *); 84 void siopngabort(struct siop_softc *, siop_regmap_p, char *); 85 void siopngerror(struct siop_softc *, siop_regmap_p, u_char); 86 int siopng_checkintr(struct siop_softc *, u_char, u_char, u_short, int *); 87 void siopngreset(struct siop_softc *); 88 void siopngsetdelay(int); 89 void siopng_scsidone(struct siop_acb *, int); 90 void siopng_sched(struct siop_softc *); 91 void siopng_poll(struct siop_softc *, struct siop_acb *); 92 void siopngintr(struct siop_softc *); 93 void scsi_period_to_siopng(struct siop_softc *, int); 94 void siopng_start(struct siop_softc *, int, int, u_char *, int, u_char *, int); 95 void siopng_dump_acb(struct siop_acb *); 96 97 /* 53C720/770 script */ 98 99 #include <amiga/dev/siop2_script.out> 100 101 /* default to not inhibit sync negotiation on any drive */ 102 u_char siopng_inhibit_sync[16] = { 103 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 104 }; /* initialize, so patchable */ 105 106 u_char siopng_inhibit_wide[16] = { 107 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 108 }; /* initialize, so patchable */ 109 110 u_char siopng_allow_disc[16] = { 111 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 112 }; 113 114 int siopng_no_dma = 0; 115 116 int siopng_reset_delay = 250; /* delay after reset, in milleseconds */ 117 118 int siopng_cmd_wait = SCSI_CMD_WAIT; 119 int siopng_data_wait = SCSI_DATA_WAIT; 120 int siopng_init_wait = SCSI_INIT_WAIT; 121 122 #define DEBUG_SYNC 123 124 #ifdef DEBUG 125 /* 126 * 0x01 - full debug 127 * 0x02 - DMA chaining 128 * 0x04 - siopngintr 129 * 0x08 - phase mismatch 130 * 0x10 - <not used> 131 * 0x20 - panic on unhandled exceptions 132 * 0x100 - disconnect/reselect 133 */ 134 int siopng_debug = 0; 135 int siopngsync_debug = 0; 136 int siopngdma_hits = 0; 137 int siopngdma_misses = 0; 138 int siopngchain_ints = 0; 139 int siopngstarts = 0; 140 int siopngints = 0; 141 int siopngphmm = 0; 142 #define SIOP_TRACE_SIZE 128 143 #define SIOP_TRACE(a,b,c,d) \ 144 siopng_trbuf[siopng_trix] = (a); \ 145 siopng_trbuf[siopng_trix+1] = (b); \ 146 siopng_trbuf[siopng_trix+2] = (c); \ 147 siopng_trbuf[siopng_trix+3] = (d); \ 148 siopng_trix = (siopng_trix + 4) & (SIOP_TRACE_SIZE - 1); 149 u_char siopng_trbuf[SIOP_TRACE_SIZE]; 150 int siopng_trix; 151 void siopng_dump(struct siop_softc *); 152 void siopng_dump_trace(void); 153 #else 154 #define SIOP_TRACE(a,b,c,d) 155 #endif 156 157 158 static char *siopng_chips[] = { 159 "720", "720SE", "770", "0x3", 160 "810A", "0x5", "0x6", "0x7", 161 "0x8", "0x9", "0xA", "0xB", 162 "0xC", "0xD", "0xE", "0xF", 163 }; 164 165 /* 166 * default minphys routine for siopng based controllers 167 */ 168 void 169 siopng_minphys(struct buf *bp) 170 { 171 172 /* 173 * No max transfer at this level. 174 */ 175 minphys(bp); 176 } 177 178 /* 179 * used by specific siopng controller 180 * 181 */ 182 void 183 siopng_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, 184 void *arg) 185 { 186 struct scsipi_xfer *xs; 187 struct scsipi_periph *periph; 188 struct siop_acb *acb; 189 struct siop_softc *sc = (void *)chan->chan_adapter->adapt_dev; 190 int flags, s; 191 192 switch (req) { 193 case ADAPTER_REQ_RUN_XFER: 194 xs = arg; 195 periph = xs->xs_periph; 196 flags = xs->xs_control; 197 198 /* XXXX ?? */ 199 if (flags & XS_CTL_DATA_UIO) 200 panic("siopng: scsi data uio requested"); 201 202 /* XXXX ?? */ 203 if (sc->sc_nexus && flags & XS_CTL_POLL) 204 /* panic("siopng_scsicmd: busy");*/ 205 printf("siopng_scsicmd: busy\n"); 206 207 s = splbio(); 208 acb = sc->free_list.tqh_first; 209 if (acb) { 210 TAILQ_REMOVE(&sc->free_list, acb, chain); 211 } 212 splx(s); 213 214 #ifdef DIAGNOSTIC 215 /* 216 * This should never happen as we track the resources 217 * in the mid-layer. 218 */ 219 if (acb == NULL) { 220 scsipi_printaddr(periph); 221 printf("unable to allocate acb\n"); 222 panic("siopng_scsipi_request"); 223 } 224 #endif 225 acb->flags = ACB_ACTIVE; 226 acb->xs = xs; 227 bcopy(xs->cmd, &acb->cmd, xs->cmdlen); 228 acb->clen = xs->cmdlen; 229 acb->daddr = xs->data; 230 acb->dleft = xs->datalen; 231 232 s = splbio(); 233 TAILQ_INSERT_TAIL(&sc->ready_list, acb, chain); 234 235 if (sc->sc_nexus == NULL) 236 siopng_sched(sc); 237 238 splx(s); 239 240 if (flags & XS_CTL_POLL || siopng_no_dma) 241 siopng_poll(sc, acb); 242 return; 243 244 case ADAPTER_REQ_GROW_RESOURCES: 245 return; 246 247 case ADAPTER_REQ_SET_XFER_MODE: 248 return; 249 } 250 } 251 252 void 253 siopng_poll(struct siop_softc *sc, struct siop_acb *acb) 254 { 255 siop_regmap_p rp = sc->sc_siopp; 256 struct scsipi_xfer *xs = acb->xs; 257 int i; 258 int status; 259 u_char istat; 260 u_char dstat; 261 u_short sist; 262 int s; 263 int to; 264 265 s = splbio(); 266 to = xs->timeout / 1000; 267 if (sc->nexus_list.tqh_first) 268 printf("%s: siopng_poll called with disconnected device\n", 269 sc->sc_dev.dv_xname); 270 for (;;) { 271 /* use cmd_wait values? */ 272 i = 50000; 273 /* XXX spl0(); */ 274 while (((istat = rp->siop_istat) & 275 (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 276 if (--i <= 0) { 277 #ifdef DEBUG 278 printf ("waiting: tgt %d cmd %02x sbcl %02x istat %02x sbdl %04x\n dsp %lx (+%lx) dcmd %lx ds %p timeout %d\n", 279 xs->xs_periph->periph_target, acb->cmd.opcode, 280 rp->siop_sbcl, istat, rp->siop_sbdl, rp->siop_dsp, 281 rp->siop_dsp - sc->sc_scriptspa, 282 *((long *)&rp->siop_dcmd), &acb->ds, acb->xs->timeout); 283 #endif 284 i = 50000; 285 --to; 286 if (to <= 0) { 287 siopngreset(sc); 288 return; 289 } 290 } 291 delay(20); 292 } 293 sist = rp->siop_sist; 294 dstat = rp->siop_dstat; 295 if (siopng_checkintr(sc, istat, dstat, sist, &status)) { 296 if (acb != sc->sc_nexus) 297 printf("%s: siopng_poll disconnected device completed\n", 298 sc->sc_dev.dv_xname); 299 else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 300 sc->sc_flags &= ~SIOP_INTSOFF; 301 rp->siop_sien = sc->sc_sien; 302 rp->siop_dien = sc->sc_dien; 303 } 304 siopng_scsidone(sc->sc_nexus, status); 305 } 306 if (xs->xs_status & XS_STS_DONE) 307 break; 308 } 309 splx(s); 310 } 311 312 /* 313 * start next command that's ready 314 */ 315 void 316 siopng_sched(struct siop_softc *sc) 317 { 318 struct scsipi_periph *periph; 319 struct siop_acb *acb; 320 int i; 321 322 #ifdef DEBUG 323 if (sc->sc_nexus) { 324 printf("%s: siopng_sched- nexus %p/%d ready %p/%d\n", 325 sc->sc_dev.dv_xname, sc->sc_nexus, 326 sc->sc_nexus->xs->xs_periph->periph_target, 327 sc->ready_list.tqh_first, 328 sc->ready_list.tqh_first->xs->xs_periph->periph_target); 329 return; 330 } 331 #endif 332 for (acb = sc->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) { 333 periph = acb->xs->xs_periph; 334 i = periph->periph_target; 335 if(!(sc->sc_tinfo[i].lubusy & (1 << periph->periph_lun))) { 336 struct siop_tinfo *ti = &sc->sc_tinfo[i]; 337 338 TAILQ_REMOVE(&sc->ready_list, acb, chain); 339 sc->sc_nexus = acb; 340 periph = acb->xs->xs_periph; 341 ti = &sc->sc_tinfo[periph->periph_target]; 342 ti->lubusy |= (1 << periph->periph_lun); 343 break; 344 } 345 } 346 347 if (acb == NULL) { 348 #ifdef DEBUGXXX 349 printf("%s: siopng_sched didn't find ready command\n", 350 sc->sc_dev.dv_xname); 351 #endif 352 return; 353 } 354 355 if (acb->xs->xs_control & XS_CTL_RESET) 356 siopngreset(sc); 357 358 #if 0 359 acb->cmd.bytes[0] |= periph->periph_lun << 5; /* XXXX */ 360 #endif 361 ++sc->sc_active; 362 siopng_select(sc); 363 } 364 365 void 366 siopng_scsidone(struct siop_acb *acb, int stat) 367 { 368 struct scsipi_xfer *xs; 369 struct scsipi_periph *periph; 370 struct siop_softc *sc; 371 int dosched = 0; 372 373 if (acb == NULL || (xs = acb->xs) == NULL) { 374 #ifdef DIAGNOSTIC 375 printf("siopng_scsidone: NULL acb or scsipi_xfer\n"); 376 #if defined(DEBUG) && defined(DDB) 377 Debugger(); 378 #endif 379 #endif 380 return; 381 } 382 periph = xs->xs_periph; 383 sc = (void *)periph->periph_channel->chan_adapter->adapt_dev; 384 385 xs->status = stat; 386 xs->resid = 0; /* XXXX */ 387 388 if (xs->error == XS_NOERROR) { 389 if (stat == SCSI_CHECK || stat == SCSI_BUSY) 390 xs->error = XS_BUSY; 391 } 392 393 /* 394 * Remove the ACB from whatever queue it's on. We have to do a bit of 395 * a hack to figure out which queue it's on. Note that it is *not* 396 * necessary to cdr down the ready queue, but we must cdr down the 397 * nexus queue and see if it's there, so we can mark the unit as no 398 * longer busy. This code is sickening, but it works. 399 */ 400 if (acb == sc->sc_nexus) { 401 sc->sc_nexus = NULL; 402 sc->sc_tinfo[periph->periph_target].lubusy &= 403 ~(1<<periph->periph_lun); 404 if (sc->ready_list.tqh_first) 405 dosched = 1; /* start next command */ 406 --sc->sc_active; 407 SIOP_TRACE('d','a',stat,0) 408 } else if (sc->ready_list.tqh_last == &acb->chain.tqe_next) { 409 TAILQ_REMOVE(&sc->ready_list, acb, chain); 410 SIOP_TRACE('d','r',stat,0) 411 } else { 412 register struct siop_acb *acb2; 413 for (acb2 = sc->nexus_list.tqh_first; acb2; 414 acb2 = acb2->chain.tqe_next) 415 if (acb2 == acb) { 416 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 417 sc->sc_tinfo[periph->periph_target].lubusy 418 &= ~(1<<periph->periph_lun); 419 --sc->sc_active; 420 break; 421 } 422 if (acb2) 423 ; 424 else if (acb->chain.tqe_next) { 425 TAILQ_REMOVE(&sc->ready_list, acb, chain); 426 --sc->sc_active; 427 } else { 428 printf("%s: can't find matching acb\n", 429 sc->sc_dev.dv_xname); 430 #ifdef DDB 431 /* Debugger(); */ 432 #endif 433 } 434 SIOP_TRACE('d','n',stat,0); 435 } 436 /* Put it on the free list. */ 437 acb->flags = ACB_FREE; 438 TAILQ_INSERT_HEAD(&sc->free_list, acb, chain); 439 440 sc->sc_tinfo[periph->periph_target].cmds++; 441 442 scsipi_done(xs); 443 444 if (dosched && sc->sc_nexus == NULL) 445 siopng_sched(sc); 446 } 447 448 void 449 siopngabort(register struct siop_softc *sc, siop_regmap_p rp, char *where) 450 { 451 #ifdef fix_this 452 int i; 453 #endif 454 455 printf ("%s: abort %s: dstat %02x, istat %02x sist %04x sien %04x sbcl %02x\n", 456 sc->sc_dev.dv_xname, 457 where, rp->siop_dstat, rp->siop_istat, rp->siop_sist, 458 rp->siop_sien, rp->siop_sbcl); 459 siopng_dump_registers(sc); 460 461 if (sc->sc_active > 0) { 462 #ifdef TODO 463 SET_SBIC_cmd (rp, SBIC_CMD_ABORT); 464 WAIT_CIP (rp); 465 466 GET_SBIC_asr (rp, asr); 467 if (asr & (SBIC_ASR_BSY|SBIC_ASR_LCI)) 468 { 469 /* ok, get more drastic.. */ 470 471 SET_SBIC_cmd (rp, SBIC_CMD_RESET); 472 delay(25); 473 SBIC_WAIT(rp, SBIC_ASR_INT, 0); 474 GET_SBIC_csr (rp, csr); /* clears interrupt also */ 475 476 return; 477 } 478 479 do 480 { 481 SBIC_WAIT (rp, SBIC_ASR_INT, 0); 482 GET_SBIC_csr (rp, csr); 483 } 484 while ((csr != SBIC_CSR_DISC) && (csr != SBIC_CSR_DISC_1) 485 && (csr != SBIC_CSR_CMD_INVALID)); 486 #endif 487 488 /* lets just hope it worked.. */ 489 #ifdef fix_this 490 for (i = 0; i < 2; ++i) { 491 if (sc->sc_iob[i].sc_xs && &sc->sc_iob[i] != 492 sc->sc_cur) { 493 printf ("siopngabort: cleanup!\n"); 494 sc->sc_iob[i].sc_xs = NULL; 495 } 496 } 497 #endif /* fix_this */ 498 /* sc->sc_active = 0; */ 499 } 500 } 501 502 void 503 siopnginitialize(struct siop_softc *sc) 504 { 505 int i; 506 u_int inhibit_sync; 507 extern u_long scsi_nosync; 508 extern int shift_nosync; 509 510 /* 511 * Need to check that scripts is on a long word boundary 512 * Also should verify that dev doesn't span non-contiguous 513 * physical pages. 514 */ 515 sc->sc_scriptspa = kvtop((caddr_t)siopng_scripts); 516 517 /* 518 * malloc sc_acb to ensure that DS is on a long word boundary. 519 */ 520 521 MALLOC(sc->sc_acb, struct siop_acb *, 522 sizeof(struct siop_acb) * SIOP_NACB, M_DEVBUF, M_NOWAIT); 523 if (sc->sc_acb == NULL) 524 panic("siopnginitialize: ACB malloc failed!"); 525 526 sc->sc_tcp[1] = 1000 / sc->sc_clock_freq; 527 sc->sc_tcp[2] = 1500 / sc->sc_clock_freq; 528 sc->sc_tcp[3] = 2000 / sc->sc_clock_freq; 529 sc->sc_minsync = sc->sc_tcp[1]; /* in 4ns units */ 530 if (sc->sc_minsync < 25) 531 sc->sc_minsync = 25; 532 sc->sc_minsync >>= 1; /* Using clock doubler, allow Ultra */ 533 if (sc->sc_clock_freq <= 25) { 534 sc->sc_dcntl |= 0x80; /* SCLK/1 */ 535 sc->sc_tcp[0] = sc->sc_tcp[1]; 536 } else if (sc->sc_clock_freq <= 37) { 537 sc->sc_dcntl |= 0x40; /* SCLK/1.5 */ 538 sc->sc_tcp[0] = sc->sc_tcp[2]; 539 } else if (sc->sc_clock_freq <= 50) { 540 sc->sc_dcntl |= 0x00; /* SCLK/2 */ 541 sc->sc_tcp[0] = sc->sc_tcp[3]; 542 } else { 543 sc->sc_dcntl |= 0xc0; /* SCLK/3 */ 544 sc->sc_tcp[0] = 3000 / sc->sc_clock_freq; 545 } 546 547 if (scsi_nosync) { 548 inhibit_sync = (scsi_nosync >> shift_nosync) & 0xffff; 549 shift_nosync += 16; /* XXX maxtarget */ 550 #ifdef DEBUG 551 if (inhibit_sync) 552 printf("%s: Inhibiting synchronous transfer %02x\n", 553 sc->sc_dev.dv_xname, inhibit_sync); 554 #endif 555 for (i = 0; i < 16; ++i) /* XXX maxtarget */ 556 if (inhibit_sync & (1 << i)) 557 siopng_inhibit_sync[i] = 1; 558 } 559 560 siopngreset (sc); 561 } 562 563 void 564 siopngreset(struct siop_softc *sc) 565 { 566 siop_regmap_p rp; 567 u_int i, s; 568 u_short dummy; 569 struct siop_acb *acb; 570 571 rp = sc->sc_siopp; 572 573 if (sc->sc_flags & SIOP_ALIVE) 574 siopngabort(sc, rp, "reset"); 575 576 printf("%s: ", sc->sc_dev.dv_xname); /* XXXX */ 577 578 s = splbio(); 579 580 /* 581 * Reset the chip 582 * XXX - is this really needed? 583 */ 584 rp->siop_istat |= SIOP_ISTAT_ABRT; /* abort current script */ 585 rp->siop_istat |= SIOP_ISTAT_RST; /* reset chip */ 586 rp->siop_istat &= ~SIOP_ISTAT_RST; 587 /* 588 * Reset SCSI bus (do we really want this?) 589 */ 590 rp->siop_sien = 0; 591 rp->siop_scntl1 |= SIOP_SCNTL1_RST; 592 delay(1); 593 rp->siop_scntl1 &= ~SIOP_SCNTL1_RST; 594 595 /* 596 * Set up various chip parameters 597 */ 598 rp->siop_stest1 |= SIOP_STEST1_DBLEN; /* SCLK doubler enable */ 599 delay(20); 600 rp->siop_stest3 |= SIOP_STEST3_HSC; /* Halt SCSI clock */ 601 rp->siop_scntl3 = 0x15; /* SCF/CCF*/ 602 rp->siop_stest1 |= SIOP_STEST1_DBLSEL; /* SCLK doubler select */ 603 rp->siop_stest3 &= ~SIOP_STEST3_HSC; /* Clear Halt SCSI clock */ 604 rp->siop_scntl0 = SIOP_ARB_FULL | /*SIOP_SCNTL0_EPC |*/ SIOP_SCNTL0_EPG; 605 rp->siop_dcntl = sc->sc_dcntl; 606 rp->siop_dmode = 0xc0; /* XXX burst length */ 607 rp->siop_sien = 0x00; /* don't enable interrupts yet */ 608 rp->siop_dien = 0x00; /* don't enable interrupts yet */ 609 rp->siop_scid = sc->sc_channel.chan_id | 610 SIOP_SCID_RRE | SIOP_SCID_SRE; 611 rp->siop_respid = 1 << sc->sc_channel.chan_id; 612 rp->siop_dwt = 0x00; 613 rp->siop_stime0 = 0x0c; /* XXXXX check */ 614 615 /* will need to re-negotiate sync xfers */ 616 bzero(&sc->sc_sync, sizeof (sc->sc_sync)); 617 618 i = rp->siop_istat; 619 if (i & SIOP_ISTAT_SIP) 620 dummy = rp->siop_sist; 621 if (i & SIOP_ISTAT_DIP) 622 dummy = rp->siop_dstat; 623 624 splx (s); 625 626 delay (siopng_reset_delay * 1000); 627 628 /* 629 * is lower half unterminated? 630 */ 631 if ((rp->siop_sbdl & 0x00ff) == 0x00ff) { 632 printf(" no SCSI termination, host adapter deactivated.\n"); 633 sc->sc_channel.chan_ntargets = 0; /* XXX */ 634 sc->sc_flags &= ~(SIOP_ALIVE|SIOP_INTDEFER|SIOP_INTSOFF); 635 /* disable SCSI and DMA interrupts */ 636 sc->sc_sien = 0; 637 sc->sc_dien = 0; 638 rp->siop_sien = sc->sc_sien; 639 rp->siop_dien = sc->sc_dien; 640 641 return; 642 } 643 644 /* 645 * Check if upper half of SCSI bus is unterminated, and disallow 646 * disconnections if it appears to be unterminated. 647 */ 648 if ((rp->siop_sbdl & 0xff00) == 0xff00) { 649 printf(" NO WIDE TERM"); 650 /* XXX need to restrict maximum target ID as well? */ 651 sc->sc_channel.chan_ntargets = 8; 652 for (i = 0; i < 16; ++i) { 653 siopng_allow_disc[i] = 0; 654 siopng_inhibit_wide[i] |= 0x80; 655 } 656 } 657 658 printf("siopng type %s id %d reset V%d\n", 659 siopng_chips[rp->siop_macntl>>4], 660 sc->sc_channel.chan_ntargets, 661 rp->siop_ctest3 >> 4); 662 663 if ((sc->sc_flags & SIOP_ALIVE) == 0) { 664 TAILQ_INIT(&sc->ready_list); 665 TAILQ_INIT(&sc->nexus_list); 666 TAILQ_INIT(&sc->free_list); 667 sc->sc_nexus = NULL; 668 acb = sc->sc_acb; 669 bzero(acb, sizeof(struct siop_acb) * SIOP_NACB); 670 for (i = 0; i < SIOP_NACB; i++) { 671 TAILQ_INSERT_TAIL(&sc->free_list, acb, chain); 672 acb++; 673 } 674 bzero(sc->sc_tinfo, sizeof(sc->sc_tinfo)); 675 } else { 676 if (sc->sc_nexus != NULL) { 677 sc->sc_nexus->xs->error = XS_RESET; 678 siopng_scsidone(sc->sc_nexus, sc->sc_nexus->stat[0]); 679 } 680 while ((acb = sc->nexus_list.tqh_first) > 0) { 681 acb->xs->error = XS_RESET; 682 siopng_scsidone(acb, acb->stat[0]); 683 } 684 } 685 686 sc->sc_flags |= SIOP_ALIVE; 687 sc->sc_flags &= ~(SIOP_INTDEFER|SIOP_INTSOFF); 688 /* enable SCSI and DMA interrupts */ 689 sc->sc_sien = SIOP_SIEN_MA | SIOP_SIEN_STO | /*SIOP_SIEN_GEN |*/ 690 /*SIOP_SIEN_SEL |*/ SIOP_SIEN_SGE | SIOP_SIEN_UDC | 691 SIOP_SIEN_RST | SIOP_SIEN_PAR; 692 sc->sc_dien = SIOP_DIEN_BF | SIOP_DIEN_ABRT | SIOP_DIEN_SIR | 693 /*SIOP_DIEN_WTD |*/ SIOP_DIEN_IID; 694 rp->siop_sien = sc->sc_sien; 695 rp->siop_dien = sc->sc_dien; 696 /*siopng_dump_registers(sc);*/ 697 } 698 699 /* 700 * Setup Data Storage for 53C720/770 and start SCRIPTS processing 701 */ 702 703 void 704 siopng_start(struct siop_softc *sc, int target, int lun, u_char *cbuf, 705 int clen, u_char *buf, int len) 706 { 707 siop_regmap_p rp = sc->sc_siopp; 708 int nchain; 709 int count, tcount; 710 char *addr, *dmaend; 711 struct siop_acb *acb = sc->sc_nexus; 712 #ifdef DEBUG 713 int i; 714 #endif 715 716 #ifdef DEBUG 717 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 718 printf ("ACK! siopng was busy: rp %p script %p dsa %p active %ld\n", 719 rp, &siopng_scripts, &acb->ds, sc->sc_active); 720 printf ("istat %02x sfbr %02x respid %02x sien %04x dien %02x\n", 721 rp->siop_istat, rp->siop_sfbr, rp->siop_respid, 722 rp->siop_sien, rp->siop_dien); 723 #ifdef DDB 724 /*Debugger();*/ 725 #endif 726 } 727 #endif 728 acb->msgout[0] = MSG_IDENTIFY | lun; 729 if (siopng_allow_disc[target] & 2 || 730 (siopng_allow_disc[target] && len == 0)) 731 acb->msgout[0] = MSG_IDENTIFY_DR | lun; 732 acb->status = 0; 733 acb->stat[0] = -1; 734 acb->msg[0] = -1; 735 acb->ds.scsi_addr = (target << 16) | (sc->sc_sync[target].sxfer << 8) | 736 (sc->sc_sync[target].scntl3 << 24); 737 acb->ds.idlen = 1; 738 acb->ds.idbuf = (char *) kvtop(&acb->msgout[0]); 739 acb->ds.cmdlen = clen; 740 acb->ds.cmdbuf = (char *) kvtop(cbuf); 741 acb->ds.stslen = 1; 742 acb->ds.stsbuf = (char *) kvtop(&acb->stat[0]); 743 acb->ds.msglen = 1; 744 acb->ds.msgbuf = (char *) kvtop(&acb->msg[0]); 745 acb->msg[1] = -1; 746 acb->ds.msginlen = 1; 747 acb->ds.extmsglen = 1; 748 acb->ds.synmsglen = 3; 749 acb->ds.msginbuf = acb->ds.msgbuf + 1; 750 acb->ds.extmsgbuf = acb->ds.msginbuf + 1; 751 acb->ds.synmsgbuf = acb->ds.extmsgbuf + 1; 752 bzero(&acb->ds.chain, sizeof (acb->ds.chain)); 753 754 if (sc->sc_sync[target].state == NEG_WIDE) { 755 if (siopng_inhibit_wide[target]) { 756 sc->sc_sync[target].state = NEG_SYNC; 757 sc->sc_sync[target].scntl3 &= ~SIOP_SCNTL3_EWS; 758 #ifdef DEBUG 759 if (siopngsync_debug) 760 printf ("Forcing target %d narrow\n", target); 761 #endif 762 } 763 else { 764 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 765 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 766 acb->msg[2] = -1; 767 acb->msgout[1] = MSG_EXT_MESSAGE; 768 acb->msgout[2] = 2; 769 acb->msgout[3] = MSG_WIDE_REQ; 770 acb->msgout[4] = 1; 771 acb->ds.idlen = 5; 772 acb->ds.synmsglen = 2; 773 sc->sc_sync[target].state = NEG_WAITW; 774 #ifdef DEBUG 775 if (siopngsync_debug) 776 printf("Sending wide request to target %d\n", target); 777 #endif 778 } 779 } 780 if (sc->sc_sync[target].state == NEG_SYNC) { 781 if (siopng_inhibit_sync[target]) { 782 sc->sc_sync[target].state = NEG_DONE; 783 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 784 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 785 sc->sc_sync[target].sxfer = 0; 786 #ifdef DEBUG 787 if (siopngsync_debug) 788 printf ("Forcing target %d asynchronous\n", target); 789 #endif 790 } 791 else { 792 sc->sc_sync[target].scntl3 = 0x15 | /* XXX */ 793 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 794 acb->msg[2] = -1; 795 acb->msgout[1] = MSG_EXT_MESSAGE; 796 acb->msgout[2] = 3; 797 acb->msgout[3] = MSG_SYNC_REQ; 798 #ifdef MAXTOR_SYNC_KLUDGE 799 acb->msgout[4] = 50 / 4; /* ask for ridiculous period */ 800 #else 801 acb->msgout[4] = sc->sc_minsync; 802 #endif 803 acb->msgout[5] = SIOP_MAX_OFFSET; 804 acb->ds.idlen = 6; 805 sc->sc_sync[target].state = NEG_WAITS; 806 #ifdef DEBUG 807 if (siopngsync_debug) 808 printf ("Sending sync request to target %d\n", target); 809 #endif 810 } 811 } 812 813 /* 814 * Build physical DMA addresses for scatter/gather I/O 815 */ 816 acb->iob_buf = buf; 817 acb->iob_len = len; 818 acb->iob_curbuf = acb->iob_curlen = 0; 819 nchain = 0; 820 count = len; 821 addr = buf; 822 dmaend = NULL; 823 while (count > 0) { 824 acb->ds.chain[nchain].databuf = (char *) kvtop (addr); 825 if (count < (tcount = PAGE_SIZE - ((int) addr & PGOFSET))) 826 tcount = count; 827 828 #if DEBUG_ONLY_IF_DESPERATE 829 printf("chain[%d]: count %d tcount %d vaddr %p paddr %p\n", 830 nchain, count, tcount, addr, 831 acb->ds.chain[nchain].databuf); 832 #endif 833 acb->ds.chain[nchain].datalen = tcount; 834 addr += tcount; 835 count -= tcount; 836 if (acb->ds.chain[nchain].databuf == dmaend) { 837 dmaend += acb->ds.chain[nchain].datalen; 838 acb->ds.chain[nchain].datalen = 0; 839 acb->ds.chain[--nchain].datalen += tcount; 840 #ifdef DEBUG 841 ++siopngdma_hits; 842 #endif 843 } 844 else { 845 dmaend = acb->ds.chain[nchain].databuf + 846 acb->ds.chain[nchain].datalen; 847 acb->ds.chain[nchain].datalen = tcount; 848 #ifdef DEBUG 849 if (nchain) /* Don't count miss on first one */ 850 ++siopngdma_misses; 851 #endif 852 } 853 ++nchain; 854 } 855 #ifdef DEBUG 856 if (nchain != 1 && len != 0 && siopng_debug & 3) { 857 printf ("DMA chaining set: %d\n", nchain); 858 for (i = 0; i < nchain; ++i) { 859 printf (" [%d] %8p %lx\n", i, acb->ds.chain[i].databuf, 860 acb->ds.chain[i].datalen); 861 } 862 } 863 #endif 864 865 /* push data cache for all data the 53c720/770 needs to access */ 866 dma_cachectl ((caddr_t)acb, sizeof (struct siop_acb)); 867 dma_cachectl (cbuf, clen); 868 if (buf != NULL && len != 0) 869 dma_cachectl (buf, len); 870 #ifdef DEBUG 871 if (siopng_debug & 0x100 && rp->siop_sbcl & SIOP_BSY) { 872 printf ("ACK! siopng was busy at start: rp %p script %p dsa %p active %ld\n", 873 rp, &siopng_scripts, &acb->ds, sc->sc_active); 874 #ifdef DDB 875 /*Debugger();*/ 876 #endif 877 } 878 #endif 879 if (sc->nexus_list.tqh_first == NULL) { 880 if (rp->siop_istat & SIOP_ISTAT_CON) 881 printf("%s: siopng_select while connected?\n", 882 sc->sc_dev.dv_xname); 883 rp->siop_temp = 0; 884 #ifndef FIXME 885 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 886 #endif 887 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 888 rp->siop_dsp = sc->sc_scriptspa; 889 SIOP_TRACE('s',1,0,0) 890 } else { 891 if ((rp->siop_istat & SIOP_ISTAT_CON) == 0) { 892 rp->siop_istat = SIOP_ISTAT_SIGP; 893 SIOP_TRACE('s',2,0,0); 894 } 895 else { 896 SIOP_TRACE('s',3,rp->siop_istat,0); 897 } 898 } 899 #ifdef DEBUG 900 ++siopngstarts; 901 #endif 902 } 903 904 /* 905 * Process a DMA or SCSI interrupt from the 53C720/770 SIOP 906 */ 907 908 int 909 siopng_checkintr(struct siop_softc *sc, u_char istat, u_char dstat, 910 u_short sist, int *status) 911 { 912 siop_regmap_p rp = sc->sc_siopp; 913 struct siop_acb *acb = sc->sc_nexus; 914 int target = 0; 915 int dfifo, dbc, sstat0, sstat1, sstat2; 916 917 dfifo = rp->siop_dfifo; 918 dbc = rp->siop_dbc0; 919 sstat0 = rp->siop_sstat0; 920 sstat1 = rp->siop_sstat1; 921 sstat2 = rp->siop_sstat2; 922 rp->siop_ctest3 |= SIOP_CTEST8_CLF; 923 while ((rp->siop_ctest1 & SIOP_CTEST1_FMT) != SIOP_CTEST1_FMT) 924 ; 925 rp->siop_ctest3 &= ~SIOP_CTEST8_CLF; 926 #ifdef DEBUG 927 ++siopngints; 928 #if 0 929 if (siopng_debug & 0x100) { 930 DCIAS(&acb->stat[0]); /* XXX */ 931 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %x sbcl %x sts %x msg %x\n", 932 istat, dstat, sist, rp->siop_dsps, rp->siop_sbcl, acb->stat[0], acb->msg[0]); 933 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 934 acb->msg[0], acb->msg[1], acb->msg[2], 935 acb->msg[3], acb->msg[4], acb->msg[5]); 936 } 937 #endif 938 if (rp->siop_dsp && (rp->siop_dsp < sc->sc_scriptspa || 939 rp->siop_dsp >= sc->sc_scriptspa + sizeof(siopng_scripts))) { 940 printf ("%s: dsp not within script dsp %lx scripts %lx:%lx", 941 sc->sc_dev.dv_xname, rp->siop_dsp, sc->sc_scriptspa, 942 sc->sc_scriptspa + sizeof(siopng_scripts)); 943 printf(" istat %x dstat %x sist %x\n", 944 istat, dstat, sist); 945 #ifdef DDB 946 Debugger(); 947 #endif 948 } 949 #endif 950 SIOP_TRACE('i',dstat,istat,(istat&SIOP_ISTAT_DIP)?rp->siop_dsps&0xff:sist); 951 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff00) { 952 /* Normal completion status, or check condition */ 953 #ifdef DEBUG 954 if (rp->siop_dsa != kvtop((caddr_t)&acb->ds)) { 955 printf ("siopng: invalid dsa: %lx %x\n", rp->siop_dsa, 956 kvtop((caddr_t)&acb->ds)); 957 panic("*** siopng DSA invalid ***"); 958 } 959 #endif 960 target = acb->xs->xs_periph->periph_target; 961 if (sc->sc_sync[target].state == NEG_WAITW) { 962 if (acb->msg[1] == 0xff) 963 printf ("%s: target %d ignored wide request\n", 964 sc->sc_dev.dv_xname, target); 965 else if (acb->msg[1] == MSG_REJECT) 966 printf ("%s: target %d rejected wide request\n", 967 sc->sc_dev.dv_xname, target); 968 else { 969 printf("%s: target %d (wide) %02x %02x %02x %02x\n", 970 sc->sc_dev.dv_xname, target, acb->msg[1], 971 acb->msg[2], acb->msg[3], acb->msg[4]); 972 if (acb->msg[1] == MSG_EXT_MESSAGE && 973 acb->msg[2] == 2 && 974 acb->msg[3] == MSG_WIDE_REQ) 975 sc->sc_sync[target].scntl3 = acb->msg[4] ? 976 sc->sc_sync[target].scntl3 | SIOP_SCNTL3_EWS : 977 sc->sc_sync[target].scntl3 & ~SIOP_SCNTL3_EWS; 978 } 979 sc->sc_sync[target].state = NEG_SYNC; 980 } 981 if (sc->sc_sync[target].state == NEG_WAITS) { 982 if (acb->msg[1] == 0xff) 983 printf ("%s: target %d ignored sync request\n", 984 sc->sc_dev.dv_xname, target); 985 else if (acb->msg[1] == MSG_REJECT) 986 printf ("%s: target %d rejected sync request\n", 987 sc->sc_dev.dv_xname, target); 988 else 989 /* XXX - need to set sync transfer parameters */ 990 printf("%s: target %d (sync) %02x %02x %02x\n", 991 sc->sc_dev.dv_xname, target, acb->msg[1], 992 acb->msg[2], acb->msg[3]); 993 sc->sc_sync[target].state = NEG_DONE; 994 } 995 dma_cachectl(&acb->stat[0], 1); 996 *status = acb->stat[0]; 997 #ifdef DEBUG 998 if (rp->siop_sbcl & SIOP_BSY) { 999 /*printf ("ACK! siop was busy at end: rp %x script %x dsa %x\n", 1000 rp, &siopng_scripts, &acb->ds);*/ 1001 #ifdef DDB 1002 /*Debugger();*/ 1003 #endif 1004 } 1005 if (acb->msg[0] != 0x00) 1006 printf("%s: message was not COMMAND COMPLETE: %x\n", 1007 sc->sc_dev.dv_xname, acb->msg[0]); 1008 #endif 1009 if (sc->nexus_list.tqh_first) 1010 rp->siop_dcntl |= SIOP_DCNTL_STD; 1011 return 1; 1012 } 1013 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0b) { 1014 target = acb->xs->xs_periph->periph_target; 1015 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 2 && 1016 acb->msg[3] == MSG_WIDE_REQ) { 1017 #ifdef DEBUG 1018 if (siopngsync_debug) 1019 printf ("wide msg in: %02x %02x %02x %02x %02x %02x\n", 1020 acb->msg[0], acb->msg[1], acb->msg[2], 1021 acb->msg[3], acb->msg[4], acb->msg[5]); 1022 #endif 1023 sc->sc_sync[target].scntl3 &= ~(SIOP_SCNTL3_EWS); 1024 if (acb->msg[2] == 2 && 1025 acb->msg[3] == MSG_WIDE_REQ && 1026 acb->msg[4] != 0) { 1027 sc->sc_sync[target].scntl3 |= SIOP_SCNTL3_EWS; 1028 printf ("%s: target %d now wide %d\n", 1029 sc->sc_dev.dv_xname, target, 1030 acb->msg[4]); 1031 } 1032 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1033 if (sc->sc_sync[target].state == NEG_WAITW) { 1034 sc->sc_sync[target].state = NEG_SYNC; 1035 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1036 return(0); 1037 } 1038 rp->siop_dcntl |= SIOP_DCNTL_STD; 1039 sc->sc_sync[target].state = NEG_SYNC; 1040 return (0); 1041 } 1042 if (acb->msg[1] == MSG_EXT_MESSAGE && acb->msg[2] == 3 && 1043 acb->msg[3] == MSG_SYNC_REQ) { 1044 #ifdef DEBUG 1045 if (siopngsync_debug) 1046 printf ("sync msg in: %02x %02x %02x %02x %02x %02x\n", 1047 acb->msg[0], acb->msg[1], acb->msg[2], 1048 acb->msg[3], acb->msg[4], acb->msg[5]); 1049 #endif 1050 sc->sc_sync[target].sxfer = 0; 1051 sc->sc_sync[target].scntl3 = 5 | /* XXX */ 1052 (sc->sc_sync[target].scntl3 & 0x88); /* XXX */ 1053 if (acb->msg[2] == 3 && 1054 acb->msg[3] == MSG_SYNC_REQ && 1055 acb->msg[5] != 0) { 1056 #ifdef MAXTOR_KLUDGE 1057 /* 1058 * Kludge for my Maxtor XT8580S 1059 * It accepts whatever we request, even 1060 * though it won't work. So we ask for 1061 * a short period than we can handle. If 1062 * the device says it can do it, use 208ns. 1063 * If the device says it can do less than 1064 * 100ns, then we limit it to 100ns. 1065 */ 1066 if (acb->msg[4] && acb->msg[4] < 100 / 4) { 1067 #ifdef DEBUG 1068 printf ("%d: target %d wanted %dns period\n", 1069 sc->sc_dev.dv_xname, target, 1070 acb->msg[4] * 4); 1071 #endif 1072 if (acb->msg[4] == 50 / 4) 1073 acb->msg[4] = 208 / 4; 1074 else 1075 acb->msg[4] = 100 / 4; 1076 } 1077 #endif /* MAXTOR_KLUDGE */ 1078 printf ("%s: target %d now synchronous, period=%dns, offset=%d\n", 1079 sc->sc_dev.dv_xname, target, 1080 (acb->msg[4] == 12) ? 50 : acb->msg[4] * 4, 1081 acb->msg[5]); 1082 scsi_period_to_siopng (sc, target); 1083 } 1084 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1085 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1086 if (sc->sc_sync[target].state == NEG_WAITS) { 1087 sc->sc_sync[target].state = NEG_DONE; 1088 rp->siop_dsp = sc->sc_scriptspa + Ent_clear_ack; 1089 return(0); 1090 } 1091 rp->siop_dcntl |= SIOP_DCNTL_STD; 1092 sc->sc_sync[target].state = NEG_DONE; 1093 return (0); 1094 } 1095 /* XXX - not SDTR message */ 1096 } 1097 if (sist & SIOP_SIST_MA) { /* Phase mismatch */ 1098 #ifdef DEBUG 1099 ++siopngphmm; 1100 if (acb == NULL) 1101 printf("%s: Phase mismatch with no active command?\n", 1102 sc->sc_dev.dv_xname); 1103 #endif 1104 if (acb->iob_len) { 1105 int adjust; 1106 adjust = ((dfifo - (dbc & 0x7f)) & 0x7f); 1107 if (sstat0 & SIOP_SSTAT0_OLF) /* sstat0 SODL lsb */ 1108 ++adjust; 1109 if (sstat0 & SIOP_SSTAT0_ORF) /* sstat0 SODR lsb */ 1110 ++adjust; 1111 if (sstat2 & SIOP_SSTAT2_OLF1) /* sstat2 SODL msb */ 1112 ++adjust; 1113 if (sstat2 & SIOP_SSTAT2_ORF1) /* sstat2 SODR msb */ 1114 ++adjust; 1115 acb->iob_curlen = *((long *)&rp->siop_dcmd) & 0xffffff; 1116 acb->iob_curlen += adjust; 1117 acb->iob_curbuf = *((long *)&rp->siop_dnad) - adjust; 1118 #ifdef DEBUG 1119 if (siopng_debug & 0x100) { 1120 int i; 1121 printf ("Phase mismatch: curbuf %lx curlen %lx dfifo %x dbc %x sstat1 %x adjust %x sbcl %x starts %d acb %p\n", 1122 acb->iob_curbuf, acb->iob_curlen, dfifo, 1123 dbc, sstat1, adjust, rp->siop_sbcl, siopngstarts, acb); 1124 if (acb->ds.chain[1].datalen) { 1125 for (i = 0; acb->ds.chain[i].datalen; ++i) 1126 printf("chain[%d] addr %p len %lx\n", 1127 i, acb->ds.chain[i].databuf, 1128 acb->ds.chain[i].datalen); 1129 } 1130 } 1131 #endif 1132 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1133 } 1134 #ifdef DEBUG 1135 SIOP_TRACE('m',rp->siop_sbcl,(rp->siop_dsp>>8),rp->siop_dsp); 1136 if (siopng_debug & 9) 1137 printf ("Phase mismatch: %x dsp +%lx dcmd %lx\n", 1138 rp->siop_sbcl, 1139 rp->siop_dsp - sc->sc_scriptspa, 1140 *((long *)&rp->siop_dcmd)); 1141 #endif 1142 if ((rp->siop_sbcl & SIOP_REQ) == 0) { 1143 printf ("Phase mismatch: REQ not asserted! %02x dsp %lx\n", 1144 rp->siop_sbcl, rp->siop_dsp); 1145 #if defined(DEBUG) && defined(DDB) 1146 Debugger(); 1147 #endif 1148 } 1149 switch (rp->siop_sbcl & 7) { 1150 case 0: /* data out */ 1151 case 1: /* data in */ 1152 case 2: /* status */ 1153 case 3: /* command */ 1154 case 6: /* message in */ 1155 case 7: /* message out */ 1156 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1157 break; 1158 default: 1159 goto bad_phase; 1160 } 1161 return 0; 1162 } 1163 if (sist & SIOP_SIST_STO) { /* Select timed out */ 1164 #ifdef DEBUG 1165 if (acb == NULL) 1166 printf("%s: Select timeout with no active command?\n", 1167 sc->sc_dev.dv_xname); 1168 if (rp->siop_sbcl & SIOP_BSY) { 1169 printf ("ACK! siop was busy at timeout: rp %p script %p dsa %p\n", 1170 rp, &siopng_scripts, &acb->ds); 1171 printf(" sbcl %x sdid %x istat %x dstat %x sist %x\n", 1172 rp->siop_sbcl, rp->siop_sdid, istat, dstat, sist); 1173 if (!(rp->siop_sbcl & SIOP_BSY)) { 1174 printf ("Yikes, it's not busy now!\n"); 1175 #if 0 1176 *status = -1; 1177 if (sc->nexus_list.tqh_first) 1178 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1179 return 1; 1180 #endif 1181 } 1182 /* rp->siop_dcntl |= SIOP_DCNTL_STD;*/ 1183 return (0); 1184 #ifdef DDB 1185 Debugger(); 1186 #endif 1187 } 1188 #endif 1189 *status = -1; 1190 acb->xs->error = XS_SELTIMEOUT; 1191 if (sc->nexus_list.tqh_first) 1192 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1193 return 1; 1194 } 1195 if (acb) 1196 target = acb->xs->xs_periph->periph_target; 1197 else 1198 target = 7; 1199 if (sist & SIOP_SIST_UDC) { 1200 #ifdef DEBUG 1201 if (acb == NULL) 1202 printf("%s: Unexpected disconnect with no active command?\n", 1203 sc->sc_dev.dv_xname); 1204 printf ("%s: target %d disconnected unexpectedly\n", 1205 sc->sc_dev.dv_xname, target); 1206 siopng_dump_registers(sc); 1207 siopng_dump(sc); 1208 #endif 1209 #if 0 1210 siopngabort (sc, rp, "siopngchkintr"); 1211 #endif 1212 *status = STS_BUSY; 1213 if (sc->nexus_list.tqh_first) 1214 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1215 return (acb != NULL); 1216 } 1217 if (dstat & SIOP_DSTAT_SIR && (rp->siop_dsps == 0xff01 || 1218 rp->siop_dsps == 0xff02)) { 1219 #ifdef DEBUG 1220 if (siopng_debug & 0x100) 1221 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", 1222 sc->sc_dev.dv_xname, 1 << target, rp->siop_temp, 1223 rp->siop_temp ? rp->siop_temp - sc->sc_scriptspa : 0, 1224 acb->iob_curbuf, acb->iob_curlen, 1225 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen, dfifo, dbc, sstat1, siopngstarts, acb); 1226 #endif 1227 if (acb == NULL) { 1228 printf("%s: Disconnect with no active command?\n", 1229 sc->sc_dev.dv_xname); 1230 return (0); 1231 } 1232 /* 1233 * XXXX need to update iob_curbuf/iob_curlen to reflect 1234 * current data transferred. If device disconnected in 1235 * the middle of a DMA block, they should already be set 1236 * by the phase change interrupt. If the disconnect 1237 * occurs on a DMA block boundary, we have to figure out 1238 * which DMA block it was. 1239 */ 1240 if (acb->iob_len && rp->siop_temp) { 1241 int n = rp->siop_temp - sc->sc_scriptspa; 1242 1243 if (acb->iob_curlen && acb->iob_curlen != acb->ds.chain[0].datalen) 1244 printf("%s: iob_curbuf/len already set? n %x iob %lx/%lx chain[0] %p/%lx\n", 1245 sc->sc_dev.dv_xname, n, acb->iob_curbuf, acb->iob_curlen, 1246 acb->ds.chain[0].databuf, acb->ds.chain[0].datalen); 1247 if (n < Ent_datain) 1248 n = (n - Ent_dataout) / 16; 1249 else 1250 n = (n - Ent_datain) / 16; 1251 if (n <= 0 && n > DMAMAXIO) 1252 printf("TEMP invalid %d\n", n); 1253 else { 1254 acb->iob_curbuf = (u_long)acb->ds.chain[n].databuf; 1255 acb->iob_curlen = acb->ds.chain[n].datalen; 1256 } 1257 #ifdef DEBUG 1258 if (siopng_debug & 0x100) { 1259 printf("%s: TEMP offset %d", sc->sc_dev.dv_xname, n); 1260 printf(" curbuf %lx curlen %lx\n", acb->iob_curbuf, 1261 acb->iob_curlen); 1262 } 1263 #endif 1264 } 1265 /* 1266 * If data transfer was interrupted by disconnect, iob_curbuf 1267 * and iob_curlen should reflect the point of interruption. 1268 * Adjust the DMA chain so that the data transfer begins 1269 * at the appropriate place upon reselection. 1270 * XXX This should only be done on save data pointer message? 1271 */ 1272 if (acb->iob_curlen) { 1273 int i, j; 1274 1275 #ifdef DEBUG 1276 if (siopng_debug & 0x100) 1277 printf ("%s: adjusting DMA chain\n", 1278 sc->sc_dev.dv_xname); 1279 if (rp->siop_dsps == 0xff02) 1280 printf ("%s: ID %02x disconnected without Save Data Pointers\n", 1281 sc->sc_dev.dv_xname, 1 << target); 1282 #endif 1283 for (i = 0; i < DMAMAXIO; ++i) { 1284 if (acb->ds.chain[i].datalen == 0) 1285 break; 1286 if (acb->iob_curbuf >= (long)acb->ds.chain[i].databuf && 1287 acb->iob_curbuf < (long)(acb->ds.chain[i].databuf + 1288 acb->ds.chain[i].datalen)) 1289 break; 1290 } 1291 if (i >= DMAMAXIO || acb->ds.chain[i].datalen == 0) { 1292 printf("couldn't find saved data pointer: "); 1293 printf("curbuf %lx curlen %lx i %d\n", 1294 acb->iob_curbuf, acb->iob_curlen, i); 1295 #ifdef DDB 1296 Debugger(); 1297 #endif 1298 } 1299 #ifdef DEBUG 1300 if (siopng_debug & 0x100) 1301 printf(" chain[0]: %p/%lx -> %lx/%lx\n", 1302 acb->ds.chain[0].databuf, 1303 acb->ds.chain[0].datalen, 1304 acb->iob_curbuf, 1305 acb->iob_curlen); 1306 #endif 1307 acb->ds.chain[0].databuf = (char *)acb->iob_curbuf; 1308 acb->ds.chain[0].datalen = acb->iob_curlen; 1309 for (j = 1, ++i; i < DMAMAXIO && acb->ds.chain[i].datalen; ++i, ++j) { 1310 #ifdef DEBUG 1311 if (siopng_debug & 0x100) 1312 printf(" chain[%d]: %p/%lx -> %p/%lx\n", j, 1313 acb->ds.chain[j].databuf, 1314 acb->ds.chain[j].datalen, 1315 acb->ds.chain[i].databuf, 1316 acb->ds.chain[i].datalen); 1317 #endif 1318 acb->ds.chain[j].databuf = acb->ds.chain[i].databuf; 1319 acb->ds.chain[j].datalen = acb->ds.chain[i].datalen; 1320 } 1321 if (j < DMAMAXIO) 1322 acb->ds.chain[j].datalen = 0; 1323 DCIAS(kvtop((caddr_t)&acb->ds.chain)); 1324 } 1325 ++sc->sc_tinfo[target].dconns; 1326 /* 1327 * add nexus to waiting list 1328 * clear nexus 1329 * try to start another command for another target/lun 1330 */ 1331 acb->status = sc->sc_flags & SIOP_INTSOFF; 1332 TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain); 1333 sc->sc_nexus = NULL; /* no current device */ 1334 /* start script to wait for reselect */ 1335 if (sc->sc_nexus == NULL) 1336 rp->siop_dsp = sc->sc_scriptspa + Ent_wait_reselect; 1337 /* XXXX start another command ? */ 1338 if (sc->ready_list.tqh_first) 1339 siopng_sched(sc); 1340 #if 0 1341 else 1342 rp->siop_dcntl |= SIOP_DCNTL_STD; 1343 #endif 1344 return (0); 1345 } 1346 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff03) { 1347 int reselid = rp->siop_scratcha & 0x7f; 1348 int reselun = rp->siop_sfbr & 0x07; 1349 1350 sc->sc_sstat1 = rp->siop_sbcl; /* XXXX save current SBCL */ 1351 #ifdef DEBUG 1352 if (siopng_debug & 0x100) 1353 printf ("%s: target ID %02x reselected dsps %lx\n", 1354 sc->sc_dev.dv_xname, reselid, 1355 rp->siop_dsps); 1356 if ((rp->siop_sfbr & 0x80) == 0) 1357 printf("%s: Reselect message in was not identify: %x\n", 1358 sc->sc_dev.dv_xname, rp->siop_sfbr); 1359 #endif 1360 if (sc->sc_nexus) { 1361 #ifdef DEBUG 1362 if (siopng_debug & 0x100) 1363 printf ("%s: reselect ID %02x w/active\n", 1364 sc->sc_dev.dv_xname, reselid); 1365 #endif 1366 TAILQ_INSERT_HEAD(&sc->ready_list, sc->sc_nexus, chain); 1367 sc->sc_tinfo[sc->sc_nexus->xs->xs_periph->periph_target].lubusy 1368 &= ~(1 << sc->sc_nexus->xs->xs_periph->periph_lun); 1369 --sc->sc_active; 1370 } 1371 /* 1372 * locate acb of reselecting device 1373 * set sc->sc_nexus to acb 1374 */ 1375 for (acb = sc->nexus_list.tqh_first; acb; 1376 acb = acb->chain.tqe_next) { 1377 if (reselid != ((acb->ds.scsi_addr >> 16) & 0xff) || 1378 reselun != (acb->msgout[0] & 0x07)) 1379 continue; 1380 TAILQ_REMOVE(&sc->nexus_list, acb, chain); 1381 sc->sc_nexus = acb; 1382 sc->sc_flags |= acb->status; 1383 acb->status = 0; 1384 DCIAS(kvtop(&acb->stat[0])); 1385 rp->siop_dsa = kvtop((caddr_t)&acb->ds); 1386 rp->siop_sxfer = 1387 sc->sc_sync[acb->xs->xs_periph->periph_target].sxfer; 1388 #ifndef FIXME 1389 rp->siop_scntl3 = 1390 sc->sc_sync[acb->xs->xs_periph->periph_target].scntl3; 1391 #endif 1392 break; 1393 } 1394 if (acb == NULL) { 1395 printf("%s: target ID %02x reselect nexus_list %p\n", 1396 sc->sc_dev.dv_xname, reselid, 1397 sc->nexus_list.tqh_first); 1398 panic("unable to find reselecting device"); 1399 } 1400 dma_cachectl ((caddr_t)acb, sizeof(*acb)); 1401 rp->siop_temp = 0; 1402 rp->siop_dcntl |= SIOP_DCNTL_STD; 1403 return (0); 1404 } 1405 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff04) { 1406 #ifdef DEBUG 1407 u_short ctest2 = rp->siop_ctest2; 1408 1409 /* reselect was interrupted (by Sig_P or select) */ 1410 if (siopng_debug & 0x100 || 1411 (ctest2 & SIOP_CTEST2_SIGP) == 0) 1412 printf ("%s: reselect interrupted (Sig_P?) scntl1 %x ctest2 %x sfbr %x istat %x/%x\n", 1413 sc->sc_dev.dv_xname, rp->siop_scntl1, 1414 ctest2, rp->siop_sfbr, istat, rp->siop_istat); 1415 #endif 1416 /* XXX assumes it was not select */ 1417 if (sc->sc_nexus == NULL) { 1418 #ifdef DEBUG 1419 printf("%s: reselect interrupted, sc_nexus == NULL\n", 1420 sc->sc_dev.dv_xname); 1421 #if 0 1422 siopng_dump(sc); 1423 #ifdef DDB 1424 Debugger(); 1425 #endif 1426 #endif 1427 #endif 1428 rp->siop_dcntl |= SIOP_DCNTL_STD; 1429 return(0); 1430 } 1431 target = sc->sc_nexus->xs->xs_periph->periph_target; 1432 rp->siop_temp = 0; 1433 rp->siop_dsa = kvtop((caddr_t)&sc->sc_nexus->ds); 1434 rp->siop_sxfer = sc->sc_sync[target].sxfer; 1435 #ifndef FIXME 1436 rp->siop_scntl3 = sc->sc_sync[target].scntl3; 1437 #endif 1438 rp->siop_dsp = sc->sc_scriptspa; 1439 return (0); 1440 } 1441 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff06) { 1442 if (acb == NULL) 1443 printf("%s: Bad message-in with no active command?\n", 1444 sc->sc_dev.dv_xname); 1445 /* Unrecognized message in byte */ 1446 dma_cachectl (&acb->msg[1],1); 1447 printf ("%s: Unrecognized message in data sfbr %x msg %x sbcl %x\n", 1448 sc->sc_dev.dv_xname, rp->siop_sfbr, acb->msg[1], rp->siop_sbcl); 1449 /* what should be done here? */ 1450 DCIAS(kvtop(&acb->msg[1])); 1451 rp->siop_dsp = sc->sc_scriptspa + Ent_switch; 1452 return (0); 1453 } 1454 if (dstat & SIOP_DSTAT_SIR && rp->siop_dsps == 0xff0a) { 1455 /* Status phase wasn't followed by message in phase? */ 1456 printf ("%s: Status phase not followed by message in phase? sbcl %x sbdl %x\n", 1457 sc->sc_dev.dv_xname, rp->siop_sbcl, rp->siop_sbdl); 1458 if (rp->siop_sbcl == 0xa7) { 1459 /* It is now, just continue the script? */ 1460 rp->siop_dcntl |= SIOP_DCNTL_STD; 1461 return (0); 1462 } 1463 } 1464 if (sist == 0 && dstat & SIOP_DSTAT_SIR) { 1465 dma_cachectl (&acb->stat[0], 1); 1466 dma_cachectl (&acb->msg[0], 1); 1467 printf ("SIOP interrupt: %lx sts %x msg %x %x sbcl %x\n", 1468 rp->siop_dsps, acb->stat[0], acb->msg[0], acb->msg[1], 1469 rp->siop_sbcl); 1470 siopngreset (sc); 1471 *status = -1; 1472 return 0; /* siopngreset has cleaned up */ 1473 } 1474 if (sist & SIOP_SIST_SGE) 1475 printf ("SIOP: SCSI Gross Error\n"); 1476 if (sist & SIOP_SIST_PAR) 1477 printf ("SIOP: Parity Error\n"); 1478 if (dstat & SIOP_DSTAT_IID) 1479 printf ("SIOP: Invalid instruction detected\n"); 1480 bad_phase: 1481 /* 1482 * temporary panic for unhandled conditions 1483 * displays various things about the 53C720/770 status and registers 1484 * then panics. 1485 * XXXX need to clean this up to print out the info, reset, and continue 1486 */ 1487 printf ("siopngchkintr: target %x ds %p\n", target, &acb->ds); 1488 printf ("scripts %lx ds %x rp %x dsp %lx dcmd %lx\n", sc->sc_scriptspa, 1489 kvtop((caddr_t)&acb->ds), kvtop((caddr_t)rp), rp->siop_dsp, 1490 *((long *)&rp->siop_dcmd)); 1491 printf ("siopngchkintr: istat %x dstat %x sist %x dsps %lx dsa %lx sbcl %x sts %x msg %x %x sfbr %x\n", 1492 istat, dstat, sist, rp->siop_dsps, rp->siop_dsa, 1493 rp->siop_sbcl, acb->stat[0], acb->msg[0], acb->msg[1], rp->siop_sfbr); 1494 #ifdef DEBUG 1495 if (siopng_debug & 0x20) 1496 panic("siopngchkintr: **** temp ****"); 1497 #endif 1498 #ifdef DDB 1499 Debugger (); 1500 #endif 1501 siopngreset (sc); /* hard reset */ 1502 *status = -1; 1503 return 0; /* siopngreset cleaned up */ 1504 } 1505 1506 void 1507 siopng_select(struct siop_softc *sc) 1508 { 1509 siop_regmap_p rp; 1510 struct siop_acb *acb = sc->sc_nexus; 1511 1512 #ifdef DEBUG 1513 if (siopng_debug & 1) 1514 printf ("%s: select ", sc->sc_dev.dv_xname); 1515 #endif 1516 1517 rp = sc->sc_siopp; 1518 if (acb->xs->xs_control & XS_CTL_POLL || siopng_no_dma) { 1519 sc->sc_flags |= SIOP_INTSOFF; 1520 sc->sc_flags &= ~SIOP_INTDEFER; 1521 if ((rp->siop_istat & 0x08) == 0) { 1522 rp->siop_sien = 0; 1523 rp->siop_dien = 0; 1524 } 1525 #if 0 1526 } else if ((sc->sc_flags & SIOP_INTDEFER) == 0) { 1527 sc->sc_flags &= ~SIOP_INTSOFF; 1528 if ((rp->siop_istat & 0x08) == 0) { 1529 rp->siop_sien = sc->sc_sien; 1530 rp->siop_dien = sc->sc_dien; 1531 } 1532 #endif 1533 } 1534 #ifdef DEBUG 1535 if (siopng_debug & 1) 1536 printf ("siopng_select: target %x cmd %02x ds %p\n", 1537 acb->xs->xs_periph->periph_target, acb->cmd.opcode, 1538 &sc->sc_nexus->ds); 1539 #endif 1540 1541 siopng_start(sc, acb->xs->xs_periph->periph_target, 1542 acb->xs->xs_periph->periph_lun, 1543 (u_char *)&acb->cmd, acb->clen, acb->daddr, acb->dleft); 1544 1545 return; 1546 } 1547 1548 /* 1549 * 53C720/770 interrupt handler 1550 */ 1551 1552 void 1553 siopngintr(register struct siop_softc *sc) 1554 { 1555 siop_regmap_p rp; 1556 u_char istat, dstat; 1557 u_short sist; 1558 int status; 1559 int s = splbio(); 1560 1561 istat = sc->sc_istat; 1562 if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0) { 1563 splx(s); 1564 return; 1565 } 1566 1567 /* Got a valid interrupt on this device */ 1568 rp = sc->sc_siopp; 1569 dstat = sc->sc_dstat; 1570 sist = sc->sc_sist; 1571 if (dstat & SIOP_DSTAT_SIR) 1572 sc->sc_intcode = rp->siop_dsps; 1573 sc->sc_istat = 0; 1574 #ifdef DEBUG 1575 if (siopng_debug & 1) 1576 printf ("%s: intr istat %x dstat %x sist %x\n", 1577 sc->sc_dev.dv_xname, istat, dstat, sist); 1578 if (!sc->sc_active) { 1579 printf ("%s: spurious interrupt? istat %x dstat %x sist %x nexus %p status %x\n", 1580 sc->sc_dev.dv_xname, istat, dstat, sist, 1581 sc->sc_nexus, sc->sc_nexus ? sc->sc_nexus->stat[0] : 0); 1582 } 1583 #endif 1584 1585 #ifdef DEBUG 1586 if (siopng_debug & 5) { 1587 DCIAS(kvtop(&sc->sc_nexus->stat[0])); 1588 printf ("%s: intr istat %x dstat %x sist %x dsps %lx sbcl %x sts %x msg %x\n", 1589 sc->sc_dev.dv_xname, istat, dstat, sist, 1590 rp->siop_dsps, rp->siop_sbcl, 1591 sc->sc_nexus->stat[0], sc->sc_nexus->msg[0]); 1592 } 1593 #endif 1594 if (sc->sc_flags & SIOP_INTDEFER) { 1595 sc->sc_flags &= ~(SIOP_INTDEFER | SIOP_INTSOFF); 1596 rp->siop_sien = sc->sc_sien; 1597 rp->siop_dien = sc->sc_dien; 1598 } 1599 if (siopng_checkintr (sc, istat, dstat, sist, &status)) { 1600 #if 1 1601 if (status == 0xff) 1602 printf ("siopngintr: status == 0xff\n"); 1603 #endif 1604 if ((sc->sc_flags & (SIOP_INTSOFF | SIOP_INTDEFER)) != SIOP_INTSOFF) { 1605 #if 0 1606 if (rp->siop_sbcl & SIOP_BSY) { 1607 printf ("%s: SCSI bus busy at completion", 1608 sc->sc_dev.dv_xname); 1609 printf(" targ %d sbcl %02x sfbr %x respid %02x dsp +%x\n", 1610 sc->sc_nexus->xs->xs_periph->periph_target, 1611 rp->siop_sbcl, rp->siop_sfbr, rp->siop_respid, 1612 rp->siop_dsp - sc->sc_scriptspa); 1613 } 1614 #endif 1615 siopng_scsidone(sc->sc_nexus, sc->sc_nexus ? 1616 sc->sc_nexus->stat[0] : -1); 1617 } 1618 } 1619 splx(s); 1620 } 1621 1622 /* 1623 * This is based on the Progressive Peripherals 33Mhz Zeus driver and will 1624 * not be correct for other 53c710 boards. 1625 * 1626 */ 1627 void 1628 scsi_period_to_siopng(struct siop_softc *sc, int target) 1629 { 1630 int period, offset, sxfer, scntl3 = 0; 1631 1632 period = sc->sc_nexus->msg[4]; 1633 offset = sc->sc_nexus->msg[5]; 1634 #ifdef FIXME 1635 for (scntl3 = 1; scntl3 < 4; ++scntl3) { 1636 sxfer = (period * 4 - 1) / sc->sc_tcp[scntl3] - 3; 1637 if (sxfer >= 0 && sxfer <= 7) 1638 break; 1639 } 1640 if (scntl3 > 3) { 1641 printf("siopng sync: unable to compute sync params for period %dns\n", 1642 period * 4); 1643 /* 1644 * XXX need to pick a value we can do and renegotiate 1645 */ 1646 sxfer = scntl3 = 0; 1647 } else { 1648 sxfer = (sxfer << 4) | ((offset <= SIOP_MAX_OFFSET) ? 1649 offset : SIOP_MAX_OFFSET); 1650 #ifdef DEBUG_SYNC 1651 printf("siopng sync: params for period %dns: sxfer %x scntl3 %x", 1652 period * 4, sxfer, scntl3); 1653 printf(" actual period %dns\n", 1654 sc->sc_tcp[scntl3] * ((sxfer >> 4) + 4)); 1655 #endif /* DEBUG_SYNC */ 1656 } 1657 #else /* FIXME */ 1658 sxfer = offset <= SIOP_MAX_OFFSET ? offset : SIOP_MAX_OFFSET; 1659 sxfer |= 0x20; /* XXX XFERP: 5 */ 1660 #ifndef FIXME 1661 if (period <= (50 / 4)) /* XXX */ 1662 scntl3 = 0x95; /* Ultra, SCF: /1, CCF: /4 */ 1663 else if (period <= (100 / 4)) 1664 scntl3 = 0x35; /* SCF: /2, CCF: /4 */ 1665 else if (period <= (200 / 4)) 1666 scntl3 = 0x55; /* SCF: /4, CCF: /4 */ 1667 else 1668 scntl3 = 0xff; /* XXX ??? */ 1669 #else 1670 scntl3 = 5; 1671 #endif 1672 #endif 1673 sc->sc_sync[target].sxfer = sxfer; 1674 sc->sc_sync[target].scntl3 = scntl3 | 1675 (sc->sc_sync[target].scntl3 & SIOP_SCNTL3_EWS); 1676 #ifdef DEBUG_SYNC 1677 printf ("siopng sync: siop_sxfr %02x, siop_scntl3 %02x\n", sxfer, scntl3); 1678 #endif 1679 } 1680 1681 void 1682 siopng_dump_registers(struct siop_softc *sc) 1683 { 1684 siop_regmap_p rp = sc->sc_siopp; 1685 1686 printf(" scntl0 %02x scntl1 %02x scntl2 %02x scntl3 %02x\n", 1687 rp->siop_scntl0, rp->siop_scntl1, rp->siop_scntl2, rp->siop_scntl3); 1688 printf(" scid %02x sxfer %02x sdid %02x gpreg %02x\n", 1689 rp->siop_scid, rp->siop_sxfer, rp->siop_sdid, rp->siop_gpreg); 1690 printf(" sfbr %02x socl %02x ssid %02x sbcl %02x\n", 1691 rp->siop_sfbr, rp->siop_socl, rp->siop_ssid, rp->siop_sbcl); 1692 printf(" dstat %02x sstat0 %02x sstat1 %02x sstat2 %02x\n", 1693 rp->siop_dstat, rp->siop_sstat0, rp->siop_sstat1, rp->siop_sstat2); 1694 printf(" ctest0 %02x ctest1 %02x ctest2 %02x ctest3 %02x\n", 1695 rp->siop_ctest0, rp->siop_ctest1, rp->siop_ctest2, rp->siop_ctest3); 1696 printf(" dfifo %02x ctest4 %02x ctest5 %02x ctest6 %02x\n", 1697 0, rp->siop_ctest4, rp->siop_ctest5, rp->siop_ctest6); 1698 printf(" dcmd %02x dbc2 %02x dbc1 %02x dbc0 %02x\n", 1699 rp->siop_dcmd, rp->siop_dbc2, rp->siop_dbc1, rp->siop_dbc0); 1700 printf(" dmode %02x dien %02x dwt %02x dcntl %02x\n", 1701 rp->siop_dmode, rp->siop_dien, rp->siop_dwt, rp->siop_dcntl); 1702 printf(" stest0 %02x stest1 %02x stest2 %02x stest3 %02x\n", 1703 rp->siop_stest0, rp->siop_stest1, rp->siop_stest2, rp->siop_stest3); 1704 printf(" istat %02x sien %04x sist %04x respid %04x\n", 1705 rp->siop_istat, rp->siop_sien, rp->siop_sist, rp->siop_respid); 1706 printf(" sidl %04x sodl %04x sbdl %04x\n", 1707 rp->siop_sidl, rp->siop_sodl, rp->siop_sbdl); 1708 printf(" dsps %08lx dsp %08lx (+%lx)\n", 1709 rp->siop_dsps, rp->siop_dsp, rp->siop_dsp > sc->sc_scriptspa ? 1710 rp->siop_dsp - sc->sc_scriptspa : 0); 1711 printf(" dsa %08lx temp %08lx dnad %08lx\n", 1712 rp->siop_dsa, rp->siop_temp, rp->siop_dnad); 1713 printf(" scratcha %08lx scratchb %08lx adder %08lx\n", 1714 rp->siop_scratcha, rp->siop_scratchb, rp->siop_adder); 1715 } 1716 1717 #ifdef DEBUG 1718 1719 #if SIOP_TRACE_SIZE 1720 void 1721 siopng_dump_trace(void) 1722 { 1723 int i; 1724 1725 printf("siopng trace: next index %d\n", siopng_trix); 1726 i = siopng_trix; 1727 do { 1728 printf("%3d: '%c' %02x %02x %02x\n", i, siopng_trbuf[i], 1729 siopng_trbuf[i + 1], siopng_trbuf[i + 2], siopng_trbuf[i + 3]); 1730 i = (i + 4) & (SIOP_TRACE_SIZE - 1); 1731 } while (i != siopng_trix); 1732 } 1733 #endif 1734 1735 void 1736 siopng_dump_acb(struct siop_acb *acb) 1737 { 1738 u_char *b = (u_char *) &acb->cmd; 1739 int i; 1740 1741 printf("acb@%p ", acb); 1742 if (acb->xs == NULL) { 1743 printf("<unused>\n"); 1744 return; 1745 } 1746 printf("(%d:%d) flags %2x clen %2d cmd ", 1747 acb->xs->xs_periph->periph_target, 1748 acb->xs->xs_periph->periph_lun, acb->flags, acb->clen); 1749 for (i = acb->clen; i; --i) 1750 printf(" %02x", *b++); 1751 printf("\n"); 1752 printf(" xs: %p data %p:%04x ", acb->xs, acb->xs->data, 1753 acb->xs->datalen); 1754 printf("va %p:%lx ", acb->iob_buf, acb->iob_len); 1755 printf("cur %lx:%lx\n", acb->iob_curbuf, acb->iob_curlen); 1756 } 1757 1758 void 1759 siopng_dump(struct siop_softc *sc) 1760 { 1761 struct siop_acb *acb; 1762 siop_regmap_p rp = sc->sc_siopp; 1763 int s; 1764 int i; 1765 1766 s = splbio(); 1767 #if SIOP_TRACE_SIZE 1768 siopng_dump_trace(); 1769 #endif 1770 printf("%s@%p regs %p istat %x\n", 1771 sc->sc_dev.dv_xname, sc, rp, rp->siop_istat); 1772 if ((acb = sc->free_list.tqh_first) > 0) { 1773 printf("Free list:\n"); 1774 while (acb) { 1775 siopng_dump_acb(acb); 1776 acb = acb->chain.tqe_next; 1777 } 1778 } 1779 if ((acb = sc->ready_list.tqh_first) > 0) { 1780 printf("Ready list:\n"); 1781 while (acb) { 1782 siopng_dump_acb(acb); 1783 acb = acb->chain.tqe_next; 1784 } 1785 } 1786 if ((acb = sc->nexus_list.tqh_first) > 0) { 1787 printf("Nexus list:\n"); 1788 while (acb) { 1789 siopng_dump_acb(acb); 1790 acb = acb->chain.tqe_next; 1791 } 1792 } 1793 if (sc->sc_nexus) { 1794 printf("Nexus:\n"); 1795 siopng_dump_acb(sc->sc_nexus); 1796 } 1797 for (i = 0; i < 8; ++i) { 1798 if (sc->sc_tinfo[i].cmds > 2) { 1799 printf("tgt %d: cmds %d disc %d lubusy %x\n", 1800 i, sc->sc_tinfo[i].cmds, 1801 sc->sc_tinfo[i].dconns, 1802 sc->sc_tinfo[i].lubusy); 1803 } 1804 } 1805 splx(s); 1806 } 1807 #endif 1808
Indexes created Thu Oct 02 14:10:14 GMT 2025