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sys/dev/advansys/adwcam.c
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1 /* 2 * CAM SCSI interface for the the Advanced Systems Inc. 3 * Second Generation SCSI controllers. 4 * 5 * Product specific probe and attach routines can be found in: 6 * 7 * pci/adw_pci.c ABP940UW 8 * 9 * Copyright (c) 1998 Justin Gibbs. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions, and the following disclaimer, 17 * without modification, immediately at the beginning of the file. 18 * 2. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 */ 35 /* 36 * Ported from: 37 * advansys.c - Linux Host Driver for AdvanSys SCSI Adapters 38 * 39 * Copyright (c) 1995-1998 Advanced System Products, Inc. 40 * All Rights Reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that redistributions of source 44 * code retain the above copyright notice and this comment without 45 * modification. 46 */ 47 #include <stddef.h> /* For offsetof */ 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/kernel.h> 52 #include <sys/malloc.h> 53 54 #include <machine/bus_pio.h> 55 #include <machine/bus_memio.h> 56 #include <machine/bus.h> 57 #include <machine/clock.h> 58 59 #include <cam/cam.h> 60 #include <cam/cam_ccb.h> 61 #include <cam/cam_sim.h> 62 #include <cam/cam_xpt_sim.h> 63 #include <cam/cam_debug.h> 64 65 #include <cam/scsi/scsi_message.h> 66 67 #include <dev/advansys/adwvar.h> 68 69 /* Definitions for our use of the SIM private CCB area */ 70 #define ccb_acb_ptr spriv_ptr0 71 #define ccb_adw_ptr spriv_ptr1 72 73 #define MIN(a, b) (((a) < (b)) ? (a) : (b)) 74 75 u_long adw_unit; 76 77 static __inline u_int32_t acbvtop(struct adw_softc *adw, 78 struct acb *acb); 79 static __inline struct acb * acbptov(struct adw_softc *adw, 80 u_int32_t busaddr); 81 static __inline struct acb* adwgetacb(struct adw_softc *adw); 82 static __inline void adwfreeacb(struct adw_softc *adw, 83 struct acb *acb); 84 85 static void adwmapmem(void *arg, bus_dma_segment_t *segs, 86 int nseg, int error); 87 static struct sg_map_node* 88 adwallocsgmap(struct adw_softc *adw); 89 static int adwallocacbs(struct adw_softc *adw); 90 91 static void adwexecuteacb(void *arg, bus_dma_segment_t *dm_segs, 92 int nseg, int error); 93 static void adw_action(struct cam_sim *sim, union ccb *ccb); 94 static void adw_poll(struct cam_sim *sim); 95 static void adw_async(void *callback_arg, u_int32_t code, 96 struct cam_path *path, void *arg); 97 static void adwprocesserror(struct adw_softc *adw, struct acb *acb); 98 static void adwtimeout(void *arg); 99 static void adw_handle_device_reset(struct adw_softc *adw, 100 u_int target); 101 static void adw_handle_bus_reset(struct adw_softc *adw, 102 int initiated); 103 104 static __inline u_int32_t 105 acbvtop(struct adw_softc *adw, struct acb *acb) 106 { 107 return (adw->acb_busbase 108 + (u_int32_t)((caddr_t)acb - (caddr_t)adw->acbs)); 109 } 110 111 static __inline struct acb * 112 acbptov(struct adw_softc *adw, u_int32_t busaddr) 113 { 114 return (adw->acbs 115 + ((struct acb *)busaddr - (struct acb *)adw->acb_busbase)); 116 } 117 118 static __inline struct acb* 119 adwgetacb(struct adw_softc *adw) 120 { 121 struct acb* acb; 122 int s; 123 124 s = splcam(); 125 if ((acb = SLIST_FIRST(&adw->free_acb_list)) != NULL) { 126 SLIST_REMOVE_HEAD(&adw->free_acb_list, links); 127 } else if (adw->num_acbs < adw->max_acbs) { 128 adwallocacbs(adw); 129 acb = SLIST_FIRST(&adw->free_acb_list); 130 if (acb == NULL) 131 printf("%s: Can't malloc ACB\n", adw_name(adw)); 132 else { 133 SLIST_REMOVE_HEAD(&adw->free_acb_list, links); 134 } 135 } 136 splx(s); 137 138 return (acb); 139 } 140 141 static __inline void 142 adwfreeacb(struct adw_softc *adw, struct acb *acb) 143 { 144 int s; 145 146 s = splcam(); 147 if ((acb->state & ACB_ACTIVE) != 0) 148 LIST_REMOVE(&acb->ccb->ccb_h, sim_links.le); 149 if ((acb->state & ACB_RELEASE_SIMQ) != 0) 150 acb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 151 else if ((adw->state & ADW_RESOURCE_SHORTAGE) != 0 152 && (acb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 153 acb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 154 adw->state &= ~ADW_RESOURCE_SHORTAGE; 155 } 156 acb->state = ACB_FREE; 157 SLIST_INSERT_HEAD(&adw->free_acb_list, acb, links); 158 splx(s); 159 } 160 161 static void 162 adwmapmem(void *arg, bus_dma_segment_t *segs, int nseg, int error) 163 { 164 bus_addr_t *busaddrp; 165 166 busaddrp = (bus_addr_t *)arg; 167 *busaddrp = segs->ds_addr; 168 } 169 170 static struct sg_map_node * 171 adwallocsgmap(struct adw_softc *adw) 172 { 173 struct sg_map_node *sg_map; 174 175 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT); 176 177 if (sg_map == NULL) 178 return (NULL); 179 180 /* Allocate S/G space for the next batch of ACBS */ 181 if (bus_dmamem_alloc(adw->sg_dmat, (void **)&sg_map->sg_vaddr, 182 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 183 free(sg_map, M_DEVBUF); 184 return (NULL); 185 } 186 187 SLIST_INSERT_HEAD(&adw->sg_maps, sg_map, links); 188 189 bus_dmamap_load(adw->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 190 PAGE_SIZE, adwmapmem, &sg_map->sg_physaddr, /*flags*/0); 191 192 bzero(sg_map->sg_vaddr, PAGE_SIZE); 193 return (sg_map); 194 } 195 196 /* 197 * Allocate another chunk of CCB's. Return count of entries added. 198 * Assumed to be called at splcam(). 199 */ 200 static int 201 adwallocacbs(struct adw_softc *adw) 202 { 203 struct acb *next_acb; 204 struct sg_map_node *sg_map; 205 bus_addr_t busaddr; 206 struct adw_sg_block *blocks; 207 int newcount; 208 int i; 209 210 next_acb = &adw->acbs[adw->num_acbs]; 211 212 sg_map = adwallocsgmap(adw); 213 214 if (sg_map == NULL) 215 return (0); 216 217 blocks = sg_map->sg_vaddr; 218 busaddr = sg_map->sg_physaddr; 219 220 newcount = (PAGE_SIZE / (ADW_SG_BLOCKCNT * sizeof(*blocks))); 221 for (i = 0; adw->num_acbs < adw->max_acbs && i < newcount; i++) { 222 int error; 223 int j; 224 225 error = bus_dmamap_create(adw->buffer_dmat, /*flags*/0, 226 &next_acb->dmamap); 227 if (error != 0) 228 break; 229 next_acb->queue.scsi_req_baddr = acbvtop(adw, next_acb); 230 next_acb->queue.sense_addr = 231 acbvtop(adw, next_acb) + offsetof(struct acb, sense_data); 232 next_acb->sg_blocks = blocks; 233 next_acb->sg_busaddr = busaddr; 234 /* Setup static data in the sg blocks */ 235 for (j = 0; j < ADW_SG_BLOCKCNT; j++) { 236 next_acb->sg_blocks[j].first_entry_no = 237 j * ADW_NO_OF_SG_PER_BLOCK; 238 } 239 next_acb->state = ACB_FREE; 240 SLIST_INSERT_HEAD(&adw->free_acb_list, next_acb, links); 241 blocks += ADW_SG_BLOCKCNT; 242 busaddr += ADW_SG_BLOCKCNT * sizeof(*blocks); 243 next_acb++; 244 adw->num_acbs++; 245 } 246 return (i); 247 } 248 249 static void 250 adwexecuteacb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 251 { 252 struct acb *acb; 253 union ccb *ccb; 254 struct adw_softc *adw; 255 int s; 256 257 acb = (struct acb *)arg; 258 ccb = acb->ccb; 259 adw = (struct adw_softc *)ccb->ccb_h.ccb_adw_ptr; 260 261 if (error != 0) { 262 if (error != EFBIG) 263 printf("%s: Unexepected error 0x%x returned from " 264 "bus_dmamap_load\n", adw_name(adw), error); 265 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 266 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 267 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 268 } 269 adwfreeacb(adw, acb); 270 xpt_done(ccb); 271 return; 272 } 273 274 if (nseg != 0) { 275 bus_dmasync_op_t op; 276 277 acb->queue.data_addr = dm_segs[0].ds_addr; 278 acb->queue.data_cnt = ccb->csio.dxfer_len; 279 if (nseg > 1) { 280 struct adw_sg_block *sg_block; 281 struct adw_sg_elm *sg; 282 bus_addr_t sg_busaddr; 283 u_int sg_index; 284 bus_dma_segment_t *end_seg; 285 286 end_seg = dm_segs + nseg; 287 288 sg_busaddr = acb->sg_busaddr; 289 sg_index = 0; 290 /* Copy the segments into our SG list */ 291 for (sg_block = acb->sg_blocks;; sg_block++) { 292 u_int sg_left; 293 294 sg_left = ADW_NO_OF_SG_PER_BLOCK; 295 sg = sg_block->sg_list; 296 while (dm_segs < end_seg && sg_left != 0) { 297 sg->sg_addr = dm_segs->ds_addr; 298 sg->sg_count = dm_segs->ds_len; 299 sg++; 300 dm_segs++; 301 sg_left--; 302 } 303 sg_index += ADW_NO_OF_SG_PER_BLOCK - sg_left; 304 sg_block->last_entry_no = sg_index - 1; 305 if (dm_segs == end_seg) { 306 sg_block->sg_busaddr_next = 0; 307 break; 308 } else { 309 sg_busaddr += 310 sizeof(struct adw_sg_block); 311 sg_block->sg_busaddr_next = sg_busaddr; 312 } 313 } 314 315 acb->queue.sg_entry_cnt = nseg; 316 acb->queue.sg_real_addr = acb->sg_busaddr; 317 } else { 318 acb->queue.sg_entry_cnt = 0; 319 acb->queue.sg_real_addr = 0; 320 } 321 322 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 323 op = BUS_DMASYNC_PREREAD; 324 else 325 op = BUS_DMASYNC_PREWRITE; 326 327 bus_dmamap_sync(adw->buffer_dmat, acb->dmamap, op); 328 329 } else { 330 acb->queue.sg_entry_cnt = 0; 331 acb->queue.data_addr = 0; 332 acb->queue.data_cnt = 0; 333 acb->queue.sg_real_addr = 0; 334 } 335 acb->queue.free_scsiq_link = 0; 336 acb->queue.ux_wk_data_cnt = 0; 337 338 s = splcam(); 339 340 /* 341 * Last time we need to check if this CCB needs to 342 * be aborted. 343 */ 344 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 345 if (nseg != 0) 346 bus_dmamap_unload(adw->buffer_dmat, acb->dmamap); 347 adwfreeacb(adw, acb); 348 xpt_done(ccb); 349 splx(s); 350 return; 351 } 352 353 acb->state |= ACB_ACTIVE; 354 ccb->ccb_h.status |= CAM_SIM_QUEUED; 355 LIST_INSERT_HEAD(&adw->pending_ccbs, &ccb->ccb_h, sim_links.le); 356 ccb->ccb_h.timeout_ch = 357 timeout(adwtimeout, (caddr_t)acb, 358 (ccb->ccb_h.timeout * hz) / 1000); 359 360 adw_send_acb(adw, acb, acbvtop(adw, acb)); 361 362 splx(s); 363 } 364 365 static void 366 adw_action(struct cam_sim *sim, union ccb *ccb) 367 { 368 struct adw_softc *adw; 369 370 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("adw_action\n")); 371 372 adw = (struct adw_softc *)cam_sim_softc(sim); 373 374 switch (ccb->ccb_h.func_code) { 375 /* Common cases first */ 376 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 377 { 378 struct ccb_scsiio *csio; 379 struct ccb_hdr *ccbh; 380 struct acb *acb; 381 382 csio = &ccb->csio; 383 ccbh = &ccb->ccb_h; 384 /* Max supported CDB length is 12 bytes */ 385 if (csio->cdb_len > 12) { 386 ccb->ccb_h.status = CAM_REQ_INVALID; 387 xpt_done(ccb); 388 return; 389 } 390 391 if ((acb = adwgetacb(adw)) == NULL) { 392 int s; 393 394 s = splcam(); 395 adw->state |= ADW_RESOURCE_SHORTAGE; 396 splx(s); 397 xpt_freeze_simq(sim, /*count*/1); 398 ccb->ccb_h.status = CAM_REQUEUE_REQ; 399 xpt_done(ccb); 400 return; 401 } 402 403 /* Link dccb and ccb so we can find one from the other */ 404 acb->ccb = ccb; 405 ccb->ccb_h.ccb_acb_ptr = acb; 406 ccb->ccb_h.ccb_adw_ptr = adw; 407 408 acb->queue.cntl = 0; 409 acb->queue.target_id = ccb->ccb_h.target_id; 410 acb->queue.target_lun = ccb->ccb_h.target_lun; 411 412 acb->queue.srb_ptr = 0; 413 acb->queue.a_flag = 0; 414 acb->queue.sense_len = 415 MIN(csio->sense_len, sizeof(acb->sense_data)); 416 acb->queue.cdb_len = csio->cdb_len; 417 418 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) 419 acb->queue.tag_code = csio->tag_action; 420 else 421 acb->queue.tag_code = 0; 422 423 acb->queue.done_status = 0; 424 acb->queue.scsi_status = 0; 425 acb->queue.host_status = 0; 426 acb->queue.ux_sg_ix = 0; 427 428 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) { 429 if ((ccb->ccb_h.flags & CAM_CDB_PHYS) == 0) { 430 bcopy(csio->cdb_io.cdb_ptr, 431 acb->queue.cdb, csio->cdb_len); 432 } else { 433 /* I guess I could map it in... */ 434 ccb->ccb_h.status = CAM_REQ_INVALID; 435 adwfreeacb(adw, acb); 436 xpt_done(ccb); 437 return; 438 } 439 } else { 440 bcopy(csio->cdb_io.cdb_bytes, 441 acb->queue.cdb, csio->cdb_len); 442 } 443 444 /* 445 * If we have any data to send with this command, 446 * map it into bus space. 447 */ 448 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 449 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) { 450 /* 451 * We've been given a pointer 452 * to a single buffer. 453 */ 454 if ((ccbh->flags & CAM_DATA_PHYS) == 0) { 455 int s; 456 int error; 457 458 s = splsoftvm(); 459 error = 460 bus_dmamap_load(adw->buffer_dmat, 461 acb->dmamap, 462 csio->data_ptr, 463 csio->dxfer_len, 464 adwexecuteacb, 465 acb, /*flags*/0); 466 if (error == EINPROGRESS) { 467 /* 468 * So as to maintain ordering, 469 * freeze the controller queue 470 * until our mapping is 471 * returned. 472 */ 473 xpt_freeze_simq(sim, 1); 474 acb->state |= CAM_RELEASE_SIMQ; 475 } 476 splx(s); 477 } else { 478 struct bus_dma_segment seg; 479 480 /* Pointer to physical buffer */ 481 seg.ds_addr = 482 (bus_addr_t)csio->data_ptr; 483 seg.ds_len = csio->dxfer_len; 484 adwexecuteacb(acb, &seg, 1, 0); 485 } 486 } else { 487 struct bus_dma_segment *segs; 488 489 if ((ccbh->flags & CAM_DATA_PHYS) != 0) 490 panic("adw_action - Physical " 491 "segment pointers " 492 "unsupported"); 493 494 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0) 495 panic("adw_action - Virtual " 496 "segment addresses " 497 "unsupported"); 498 499 /* Just use the segments provided */ 500 segs = (struct bus_dma_segment *)csio->data_ptr; 501 adwexecuteacb(acb, segs, csio->sglist_cnt, 502 (csio->sglist_cnt < ADW_SGSIZE) 503 ? 0 : EFBIG); 504 } 505 } else { 506 adwexecuteacb(acb, NULL, 0, 0); 507 } 508 break; 509 } 510 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 511 { 512 adw_idle_cmd_status_t status; 513 514 adw_idle_cmd_send(adw, ADW_IDLE_CMD_DEVICE_RESET, 515 ccb->ccb_h.target_id); 516 status = adw_idle_cmd_wait(adw); 517 if (status == ADW_IDLE_CMD_SUCCESS) { 518 ccb->ccb_h.status = CAM_REQ_CMP; 519 if (bootverbose) { 520 xpt_print_path(ccb->ccb_h.path); 521 printf("BDR Delivered\n"); 522 } 523 } else 524 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 525 xpt_done(ccb); 526 break; 527 } 528 case XPT_ABORT: /* Abort the specified CCB */ 529 /* XXX Implement */ 530 ccb->ccb_h.status = CAM_REQ_INVALID; 531 xpt_done(ccb); 532 break; 533 case XPT_SET_TRAN_SETTINGS: 534 { 535 struct ccb_trans_settings *cts; 536 u_int target_mask; 537 int s; 538 539 cts = &ccb->cts; 540 target_mask = 0x01 << ccb->ccb_h.target_id; 541 542 s = splcam(); 543 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) { 544 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) { 545 u_int discenb; 546 547 discenb = 548 adw_lram_read_16(adw, ADW_MC_DISC_ENABLE); 549 550 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) 551 discenb |= target_mask; 552 else 553 discenb &= ~target_mask; 554 555 adw_lram_write_16(adw, ADW_MC_DISC_ENABLE, 556 discenb); 557 } 558 559 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) { 560 561 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) 562 adw->tagenb |= target_mask; 563 else 564 adw->tagenb &= ~target_mask; 565 } 566 567 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) { 568 u_int wdtrenb_orig; 569 u_int wdtrenb; 570 u_int wdtrdone; 571 572 wdtrenb_orig = 573 adw_lram_read_16(adw, ADW_MC_WDTR_ABLE); 574 wdtrenb = wdtrenb_orig; 575 wdtrdone = adw_lram_read_16(adw, 576 ADW_MC_WDTR_DONE); 577 switch (cts->bus_width) { 578 case MSG_EXT_WDTR_BUS_32_BIT: 579 case MSG_EXT_WDTR_BUS_16_BIT: 580 wdtrenb |= target_mask; 581 break; 582 case MSG_EXT_WDTR_BUS_8_BIT: 583 default: 584 wdtrenb &= ~target_mask; 585 break; 586 } 587 if (wdtrenb != wdtrenb_orig) { 588 adw_lram_write_16(adw, 589 ADW_MC_WDTR_ABLE, 590 wdtrenb); 591 wdtrdone &= ~target_mask; 592 adw_lram_write_16(adw, 593 ADW_MC_WDTR_DONE, 594 wdtrdone); 595 } 596 } 597 598 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0) 599 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) { 600 u_int sdtrenb_orig; 601 u_int sdtrenb; 602 u_int ultraenb_orig; 603 u_int ultraenb; 604 u_int sdtrdone; 605 606 sdtrenb_orig = 607 adw_lram_read_16(adw, ADW_MC_SDTR_ABLE); 608 sdtrenb = sdtrenb_orig; 609 610 ultraenb_orig = 611 adw_lram_read_16(adw, ADW_MC_ULTRA_ABLE); 612 ultraenb = ultraenb_orig; 613 614 sdtrdone = adw_lram_read_16(adw, 615 ADW_MC_SDTR_DONE); 616 617 if ((cts->valid 618 & CCB_TRANS_SYNC_RATE_VALID) != 0) { 619 620 if (cts->sync_period == 0) { 621 sdtrenb &= ~target_mask; 622 } else if (cts->sync_period > 12) { 623 ultraenb &= ~target_mask; 624 sdtrenb |= target_mask; 625 } else { 626 ultraenb |= target_mask; 627 sdtrenb |= target_mask; 628 } 629 } 630 631 if ((cts->valid 632 & CCB_TRANS_SYNC_OFFSET_VALID) != 0) { 633 if (cts->sync_offset == 0) 634 sdtrenb &= ~target_mask; 635 } 636 637 if (sdtrenb != sdtrenb_orig 638 || ultraenb != ultraenb_orig) { 639 adw_lram_write_16(adw, ADW_MC_SDTR_ABLE, 640 sdtrenb); 641 adw_lram_write_16(adw, 642 ADW_MC_ULTRA_ABLE, 643 ultraenb); 644 sdtrdone &= ~target_mask; 645 adw_lram_write_16(adw, ADW_MC_SDTR_DONE, 646 sdtrdone); 647 } 648 } 649 } 650 splx(s); 651 ccb->ccb_h.status = CAM_REQ_CMP; 652 xpt_done(ccb); 653 break; 654 } 655 case XPT_GET_TRAN_SETTINGS: 656 /* Get default/user set transfer settings for the target */ 657 { 658 struct ccb_trans_settings *cts; 659 u_int target_mask; 660 661 cts = &ccb->cts; 662 target_mask = 0x01 << ccb->ccb_h.target_id; 663 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 664 cts->flags = 0; 665 if ((adw->user_discenb & target_mask) != 0) 666 cts->flags |= CCB_TRANS_DISC_ENB; 667 668 if ((adw->user_tagenb & target_mask) != 0) 669 cts->flags |= CCB_TRANS_TAG_ENB; 670 671 if ((adw->user_wdtr & target_mask) != 0) 672 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 673 else 674 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 675 676 if ((adw->user_sdtr & target_mask) != 0) { 677 if ((adw->user_ultra & target_mask) != 0) 678 cts->sync_period = 12; /* 20MHz */ 679 else 680 cts->sync_period = 25; /* 10MHz */ 681 cts->sync_offset = 15; /* XXX ??? */ 682 } 683 684 cts->valid = CCB_TRANS_SYNC_RATE_VALID 685 | CCB_TRANS_SYNC_OFFSET_VALID 686 | CCB_TRANS_BUS_WIDTH_VALID 687 | CCB_TRANS_DISC_VALID 688 | CCB_TRANS_TQ_VALID; 689 ccb->ccb_h.status = CAM_REQ_CMP; 690 } else { 691 u_int targ_tinfo; 692 693 cts->flags = 0; 694 if ((adw_lram_read_16(adw, ADW_MC_DISC_ENABLE) 695 & target_mask) != 0) 696 cts->flags |= CCB_TRANS_DISC_ENB; 697 698 if ((adw->tagenb & target_mask) != 0) 699 cts->flags |= CCB_TRANS_TAG_ENB; 700 701 targ_tinfo = 702 adw_lram_read_16(adw, 703 ADW_MC_DEVICE_HSHK_CFG_TABLE 704 + (2 * ccb->ccb_h.target_id)); 705 706 if ((targ_tinfo & ADW_HSHK_CFG_WIDE_XFR) != 0) 707 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 708 else 709 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 710 711 cts->sync_period = 712 ADW_HSHK_CFG_PERIOD_FACTOR(targ_tinfo); 713 714 cts->sync_offset = targ_tinfo & ADW_HSHK_CFG_OFFSET; 715 if (cts->sync_period == 0) 716 cts->sync_offset = 0; 717 718 if (cts->sync_offset == 0) 719 cts->sync_period = 0; 720 } 721 cts->valid = CCB_TRANS_SYNC_RATE_VALID 722 | CCB_TRANS_SYNC_OFFSET_VALID 723 | CCB_TRANS_BUS_WIDTH_VALID 724 | CCB_TRANS_DISC_VALID 725 | CCB_TRANS_TQ_VALID; 726 ccb->ccb_h.status = CAM_REQ_CMP; 727 xpt_done(ccb); 728 break; 729 } 730 case XPT_CALC_GEOMETRY: 731 { 732 struct ccb_calc_geometry *ccg; 733 u_int32_t size_mb; 734 u_int32_t secs_per_cylinder; 735 int extended; 736 737 /* 738 * XXX Use Adaptec translation until I find out how to 739 * get this information from the card. 740 */ 741 ccg = &ccb->ccg; 742 size_mb = ccg->volume_size 743 / ((1024L * 1024L) / ccg->block_size); 744 extended = 1; 745 746 if (size_mb > 1024 && extended) { 747 ccg->heads = 255; 748 ccg->secs_per_track = 63; 749 } else { 750 ccg->heads = 64; 751 ccg->secs_per_track = 32; 752 } 753 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 754 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 755 ccb->ccb_h.status = CAM_REQ_CMP; 756 xpt_done(ccb); 757 break; 758 } 759 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 760 { 761 adw_idle_cmd_status_t status; 762 763 adw_idle_cmd_send(adw, ADW_IDLE_CMD_SCSI_RESET, /*param*/0); 764 status = adw_idle_cmd_wait(adw); 765 if (status == ADW_IDLE_CMD_SUCCESS) { 766 ccb->ccb_h.status = CAM_REQ_CMP; 767 if (bootverbose) { 768 xpt_print_path(adw->path); 769 printf("Bus Reset Delivered\n"); 770 } 771 } else 772 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 773 xpt_done(ccb); 774 break; 775 } 776 case XPT_TERM_IO: /* Terminate the I/O process */ 777 /* XXX Implement */ 778 ccb->ccb_h.status = CAM_REQ_INVALID; 779 xpt_done(ccb); 780 break; 781 case XPT_PATH_INQ: /* Path routing inquiry */ 782 { 783 struct ccb_pathinq *cpi = &ccb->cpi; 784 785 cpi->version_num = 1; 786 cpi->hba_inquiry = PI_WIDE_16|PI_SDTR_ABLE|PI_TAG_ABLE; 787 cpi->target_sprt = 0; 788 cpi->hba_misc = 0; 789 cpi->hba_eng_cnt = 0; 790 cpi->max_target = ADW_MAX_TID; 791 cpi->max_lun = ADW_MAX_LUN; 792 cpi->initiator_id = adw->initiator_id; 793 cpi->bus_id = cam_sim_bus(sim); 794 cpi->base_transfer_speed = 3300; 795 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 796 strncpy(cpi->hba_vid, "AdvanSys", HBA_IDLEN); 797 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 798 cpi->unit_number = cam_sim_unit(sim); 799 cpi->ccb_h.status = CAM_REQ_CMP; 800 xpt_done(ccb); 801 break; 802 } 803 default: 804 ccb->ccb_h.status = CAM_REQ_INVALID; 805 xpt_done(ccb); 806 break; 807 } 808 } 809 810 static void 811 adw_poll(struct cam_sim *sim) 812 { 813 adw_intr(cam_sim_softc(sim)); 814 } 815 816 static void 817 adw_async(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 818 { 819 } 820 821 struct adw_softc * 822 adw_alloc(int unit, bus_space_tag_t tag, bus_space_handle_t bsh) 823 { 824 struct adw_softc *adw; 825 int i; 826 827 /* 828 * Allocate a storage area for us 829 */ 830 adw = malloc(sizeof(struct adw_softc), M_DEVBUF, M_NOWAIT); 831 if (adw == NULL) { 832 printf("adw%d: cannot malloc!\n", unit); 833 return NULL; 834 } 835 bzero(adw, sizeof(struct adw_softc)); 836 LIST_INIT(&adw->pending_ccbs); 837 SLIST_INIT(&adw->sg_maps); 838 adw->unit = unit; 839 adw->tag = tag; 840 adw->bsh = bsh; 841 i = adw->unit / 10; 842 adw->name = malloc(sizeof("adw") + i + 1, M_DEVBUF, M_NOWAIT); 843 if (adw->name == NULL) { 844 printf("adw%d: cannot malloc name!\n", unit); 845 free(adw, M_DEVBUF); 846 return NULL; 847 } 848 sprintf(adw->name, "adw%d", adw->unit); 849 return(adw); 850 } 851 852 void 853 adw_free(struct adw_softc *adw) 854 { 855 switch (adw->init_level) { 856 case 6: 857 { 858 struct sg_map_node *sg_map; 859 860 while ((sg_map = SLIST_FIRST(&adw->sg_maps)) != NULL) { 861 SLIST_REMOVE_HEAD(&adw->sg_maps, links); 862 bus_dmamap_unload(adw->sg_dmat, 863 sg_map->sg_dmamap); 864 bus_dmamem_free(adw->sg_dmat, sg_map->sg_vaddr, 865 sg_map->sg_dmamap); 866 free(sg_map, M_DEVBUF); 867 } 868 bus_dma_tag_destroy(adw->sg_dmat); 869 } 870 case 5: 871 bus_dmamap_unload(adw->acb_dmat, adw->acb_dmamap); 872 case 4: 873 bus_dmamem_free(adw->acb_dmat, adw->acbs, 874 adw->acb_dmamap); 875 bus_dmamap_destroy(adw->acb_dmat, adw->acb_dmamap); 876 case 3: 877 bus_dma_tag_destroy(adw->acb_dmat); 878 case 2: 879 bus_dma_tag_destroy(adw->buffer_dmat); 880 case 1: 881 bus_dma_tag_destroy(adw->parent_dmat); 882 case 0: 883 break; 884 } 885 free(adw->name, M_DEVBUF); 886 free(adw, M_DEVBUF); 887 } 888 889 int 890 adw_init(struct adw_softc *adw) 891 { 892 struct adw_eeprom eep_config; 893 u_int16_t checksum; 894 u_int16_t scsicfg1; 895 896 adw_reset_chip(adw); 897 checksum = adw_eeprom_read(adw, &eep_config); 898 bcopy(eep_config.serial_number, adw->serial_number, 899 sizeof(adw->serial_number)); 900 if (checksum != eep_config.checksum) { 901 u_int16_t serial_number[3]; 902 903 printf("%s: EEPROM checksum failed. Restoring Defaults\n", 904 adw_name(adw)); 905 906 /* 907 * Restore the default EEPROM settings. 908 * Assume the 6 byte board serial number that was read 909 * from EEPROM is correct even if the EEPROM checksum 910 * failed. 911 */ 912 bcopy(&adw_default_eeprom, &eep_config, sizeof(eep_config)); 913 bcopy(adw->serial_number, eep_config.serial_number, 914 sizeof(serial_number)); 915 adw_eeprom_write(adw, &eep_config); 916 } 917 918 /* Pull eeprom information into our softc. */ 919 adw->bios_ctrl = eep_config.bios_ctrl; 920 adw->user_wdtr = eep_config.wdtr_able; 921 adw->user_sdtr = eep_config.sdtr_able; 922 adw->user_ultra = eep_config.ultra_able; 923 adw->user_tagenb = eep_config.tagqng_able; 924 adw->user_discenb = eep_config.disc_enable; 925 adw->max_acbs = eep_config.max_host_qng; 926 adw->initiator_id = (eep_config.adapter_scsi_id & ADW_MAX_TID); 927 928 /* 929 * Sanity check the number of host openings. 930 */ 931 if (adw->max_acbs > ADW_DEF_MAX_HOST_QNG) 932 adw->max_acbs = ADW_DEF_MAX_HOST_QNG; 933 else if (adw->max_acbs < ADW_DEF_MIN_HOST_QNG) { 934 /* If the value is zero, assume it is uninitialized. */ 935 if (adw->max_acbs == 0) 936 adw->max_acbs = ADW_DEF_MAX_HOST_QNG; 937 else 938 adw->max_acbs = ADW_DEF_MIN_HOST_QNG; 939 940 } 941 942 scsicfg1 = 0; 943 switch (eep_config.termination) { 944 default: 945 printf("%s: Invalid EEPROM Termination Settings.\n", 946 adw_name(adw)); 947 printf("%s: Reverting to Automatic Termination\n", 948 adw_name(adw)); 949 /* FALLTHROUGH */ 950 case ADW_EEPROM_TERM_AUTO: 951 break; 952 case ADW_EEPROM_TERM_BOTH_ON: 953 scsicfg1 |= ADW_SCSI_CFG1_TERM_CTL_L; 954 /* FALLTHROUGH */ 955 case ADW_EEPROM_TERM_HIGH_ON: 956 scsicfg1 |= ADW_SCSI_CFG1_TERM_CTL_H; 957 /* FALLTHROUGH */ 958 case ADW_EEPROM_TERM_OFF: 959 scsicfg1 |= ADW_SCSI_CFG1_TERM_CTL_MANUAL; 960 break; 961 } 962 963 printf("%s: SCSI ID %d, ", adw_name(adw), adw->initiator_id); 964 965 if (adw_init_chip(adw, scsicfg1) != 0) 966 return (-1); 967 968 printf("Queue Depth %d\n", adw->max_acbs); 969 970 /* DMA tag for mapping buffers into device visible space. */ 971 if (bus_dma_tag_create(adw->parent_dmat, /*alignment*/1, /*boundary*/0, 972 /*lowaddr*/BUS_SPACE_MAXADDR, 973 /*highaddr*/BUS_SPACE_MAXADDR, 974 /*filter*/NULL, /*filterarg*/NULL, 975 /*maxsize*/MAXBSIZE, /*nsegments*/ADW_SGSIZE, 976 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, 977 /*flags*/BUS_DMA_ALLOCNOW, 978 &adw->buffer_dmat) != 0) { 979 return (-1); 980 } 981 982 adw->init_level++; 983 984 /* DMA tag for our ccb structures */ 985 if (bus_dma_tag_create(adw->parent_dmat, /*alignment*/1, /*boundary*/0, 986 /*lowaddr*/BUS_SPACE_MAXADDR, 987 /*highaddr*/BUS_SPACE_MAXADDR, 988 /*filter*/NULL, /*filterarg*/NULL, 989 adw->max_acbs * sizeof(struct acb), 990 /*nsegments*/1, 991 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, 992 /*flags*/0, &adw->acb_dmat) != 0) { 993 return (-1); 994 } 995 996 adw->init_level++; 997 998 /* Allocation for our ccbs */ 999 if (bus_dmamem_alloc(adw->acb_dmat, (void **)&adw->acbs, 1000 BUS_DMA_NOWAIT, &adw->acb_dmamap) != 0) { 1001 return (-1); 1002 } 1003 1004 adw->init_level++; 1005 1006 /* And permanently map them */ 1007 bus_dmamap_load(adw->acb_dmat, adw->acb_dmamap, 1008 adw->acbs, 1009 adw->max_acbs * sizeof(struct acb), 1010 adwmapmem, &adw->acb_busbase, /*flags*/0); 1011 1012 /* Clear them out. */ 1013 bzero(adw->acbs, adw->max_acbs * sizeof(struct acb)); 1014 1015 /* DMA tag for our S/G structures. We allocate in page sized chunks */ 1016 if (bus_dma_tag_create(adw->parent_dmat, /*alignment*/1, /*boundary*/0, 1017 /*lowaddr*/BUS_SPACE_MAXADDR, 1018 /*highaddr*/BUS_SPACE_MAXADDR, 1019 /*filter*/NULL, /*filterarg*/NULL, 1020 PAGE_SIZE, /*nsegments*/1, 1021 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, 1022 /*flags*/0, &adw->sg_dmat) != 0) { 1023 return (-1); 1024 } 1025 1026 adw->init_level++; 1027 1028 /* Allocate our first batch of ccbs */ 1029 if (adwallocacbs(adw) == 0) 1030 return (-1); 1031 1032 return (0); 1033 } 1034 1035 /* 1036 * Attach all the sub-devices we can find 1037 */ 1038 int 1039 adw_attach(struct adw_softc *adw) 1040 { 1041 struct ccb_setasync csa; 1042 struct cam_devq *devq; 1043 1044 /* Start the Risc processor now that we are fully configured. */ 1045 adw_outw(adw, ADW_RISC_CSR, ADW_RISC_CSR_RUN); 1046 1047 /* 1048 * Create the device queue for our SIM. 1049 */ 1050 devq = cam_simq_alloc(adw->max_acbs); 1051 if (devq == NULL) 1052 return (0); 1053 1054 /* 1055 * Construct our SIM entry. 1056 */ 1057 adw->sim = cam_sim_alloc(adw_action, adw_poll, "adw", adw, adw->unit, 1058 1, adw->max_acbs, devq); 1059 if (adw->sim == NULL) 1060 return (0); 1061 1062 /* 1063 * Register the bus. 1064 */ 1065 if (xpt_bus_register(adw->sim, 0) != CAM_SUCCESS) { 1066 cam_sim_free(adw->sim, /*free devq*/TRUE); 1067 return (0); 1068 } 1069 1070 if (xpt_create_path(&adw->path, /*periph*/NULL, cam_sim_path(adw->sim), 1071 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) 1072 == CAM_REQ_CMP) { 1073 xpt_setup_ccb(&csa.ccb_h, adw->path, /*priority*/5); 1074 csa.ccb_h.func_code = XPT_SASYNC_CB; 1075 csa.event_enable = AC_LOST_DEVICE; 1076 csa.callback = adw_async; 1077 csa.callback_arg = adw; 1078 xpt_action((union ccb *)&csa); 1079 } 1080 1081 return (0); 1082 } 1083 1084 void 1085 adw_intr(void *arg) 1086 { 1087 struct adw_softc *adw; 1088 u_int int_stat; 1089 u_int next_doneq; 1090 u_int next_completeq; 1091 u_int doneq_start; 1092 1093 adw = (struct adw_softc *)arg; 1094 if ((adw_inw(adw, ADW_CTRL_REG) & ADW_CTRL_REG_HOST_INTR) == 0) 1095 return; 1096 1097 /* Reading the register clears the interrupt. */ 1098 int_stat = adw_inb(adw, ADW_INTR_STATUS_REG); 1099 1100 if ((int_stat & ADW_INTR_STATUS_INTRB) != 0) { 1101 /* Idle Command Complete */ 1102 adw->idle_command_cmp = 1; 1103 switch (adw->idle_cmd) { 1104 case ADW_IDLE_CMD_DEVICE_RESET: 1105 adw_handle_device_reset(adw, 1106 /*target*/adw->idle_cmd_param); 1107 break; 1108 case ADW_IDLE_CMD_SCSI_RESET: 1109 adw_handle_bus_reset(adw, /*initiated*/TRUE); 1110 break; 1111 default: 1112 break; 1113 } 1114 adw->idle_cmd = ADW_IDLE_CMD_COMPLETED; 1115 } 1116 1117 if ((int_stat & ADW_INTR_STATUS_INTRC) != 0) { 1118 /* SCSI Bus Reset */ 1119 adw_handle_bus_reset(adw, /*initiated*/FALSE); 1120 } 1121 1122 /* 1123 * ADW_MC_HOST_NEXT_DONE is actually the last completed RISC 1124 * Queue List request. Its forward pointer (RQL_FWD) points to the 1125 * current completed RISC Queue List request. 1126 */ 1127 next_doneq = adw_lram_read_8(adw, ADW_MC_HOST_NEXT_DONE); 1128 next_doneq = ADW_MC_RISC_Q_LIST_BASE + RQL_FWD 1129 + (next_doneq * ADW_MC_RISC_Q_LIST_SIZE); 1130 1131 next_completeq = adw_lram_read_8(adw, next_doneq); 1132 doneq_start = ADW_MC_NULL_Q; 1133 /* Loop until all completed Q's are processed. */ 1134 while (next_completeq != ADW_MC_NULL_Q) { 1135 u_int32_t acb_busaddr; 1136 struct acb *acb; 1137 union ccb *ccb; 1138 1139 doneq_start = next_completeq; 1140 1141 next_doneq = ADW_MC_RISC_Q_LIST_BASE + 1142 (next_completeq * ADW_MC_RISC_Q_LIST_SIZE); 1143 1144 /* 1145 * Read the ADW_SCSI_REQ_Q physical address pointer from 1146 * the RISC list entry. 1147 */ 1148 acb_busaddr = adw_lram_read_32(adw, next_doneq + RQL_PHYADDR); 1149 acb = acbptov(adw, acb_busaddr); 1150 1151 /* Change the RISC Queue List state to free. */ 1152 adw_lram_write_8(adw, next_doneq + RQL_STATE, ADW_MC_QS_FREE); 1153 1154 /* Get the RISC Queue List forward pointer. */ 1155 next_completeq = adw_lram_read_8(adw, next_doneq + RQL_FWD); 1156 1157 /* Process CCB */ 1158 ccb = acb->ccb; 1159 untimeout(adwtimeout, acb, ccb->ccb_h.timeout_ch); 1160 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1161 bus_dmasync_op_t op; 1162 1163 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1164 op = BUS_DMASYNC_POSTREAD; 1165 else 1166 op = BUS_DMASYNC_POSTWRITE; 1167 bus_dmamap_sync(adw->buffer_dmat, acb->dmamap, op); 1168 bus_dmamap_unload(adw->buffer_dmat, acb->dmamap); 1169 ccb->csio.resid = acb->queue.data_cnt; 1170 } else 1171 ccb->csio.resid = 0; 1172 1173 /* Common Cases inline... */ 1174 if (acb->queue.host_status == QHSTA_NO_ERROR 1175 && (acb->queue.done_status == QD_NO_ERROR 1176 || acb->queue.done_status == QD_WITH_ERROR)) { 1177 ccb->csio.scsi_status = acb->queue.scsi_status; 1178 ccb->ccb_h.status = 0; 1179 switch (ccb->csio.scsi_status) { 1180 case SCSI_STATUS_OK: 1181 ccb->ccb_h.status |= CAM_REQ_CMP; 1182 break; 1183 case SCSI_STATUS_CHECK_COND: 1184 case SCSI_STATUS_CMD_TERMINATED: 1185 bcopy(&acb->sense_data, &ccb->csio.sense_data, 1186 ccb->csio.sense_len); 1187 ccb->ccb_h.status |= CAM_AUTOSNS_VALID; 1188 ccb->csio.sense_resid = acb->queue.sense_len; 1189 /* FALLTHROUGH */ 1190 default: 1191 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR 1192 | CAM_DEV_QFRZN; 1193 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1194 break; 1195 } 1196 adwfreeacb(adw, acb); 1197 xpt_done(ccb); 1198 1199 } else { 1200 adwprocesserror(adw, acb); 1201 } 1202 } 1203 1204 if (doneq_start != ADW_MC_NULL_Q) 1205 adw_lram_write_8(adw, ADW_MC_HOST_NEXT_DONE, doneq_start); 1206 } 1207 1208 static void 1209 adwprocesserror(struct adw_softc *adw, struct acb *acb) 1210 { 1211 union ccb *ccb; 1212 1213 ccb = acb->ccb; 1214 if (acb->queue.done_status == QD_ABORTED_BY_HOST) { 1215 ccb->ccb_h.status = CAM_REQ_ABORTED; 1216 } else { 1217 1218 switch (acb->queue.host_status) { 1219 case QHSTA_M_SEL_TIMEOUT: 1220 ccb->ccb_h.status = CAM_SEL_TIMEOUT; 1221 break; 1222 case QHSTA_M_SXFR_OFF_UFLW: 1223 case QHSTA_M_SXFR_OFF_OFLW: 1224 case QHSTA_M_DATA_OVER_RUN: 1225 ccb->ccb_h.status = CAM_DATA_RUN_ERR; 1226 break; 1227 case QHSTA_M_SXFR_DESELECTED: 1228 case QHSTA_M_UNEXPECTED_BUS_FREE: 1229 ccb->ccb_h.status = CAM_UNEXP_BUSFREE; 1230 break; 1231 case QHSTA_M_QUEUE_ABORTED: 1232 /* BDR or Bus Reset */ 1233 ccb->ccb_h.status = adw->last_reset; 1234 break; 1235 case QHSTA_M_SXFR_SDMA_ERR: 1236 case QHSTA_M_SXFR_SXFR_PERR: 1237 case QHSTA_M_RDMA_PERR: 1238 ccb->ccb_h.status = CAM_UNCOR_PARITY; 1239 break; 1240 case QHSTA_M_WTM_TIMEOUT: 1241 case QHSTA_M_SXFR_WD_TMO: 1242 /* The SCSI bus hung in a phase */ 1243 ccb->ccb_h.status = CAM_SEQUENCE_FAIL; 1244 adw_idle_cmd_send(adw, ADW_IDLE_CMD_SCSI_RESET, 1245 /*param*/0); 1246 break; 1247 case QHSTA_M_SXFR_XFR_PH_ERR: 1248 ccb->ccb_h.status = CAM_SEQUENCE_FAIL; 1249 break; 1250 case QHSTA_M_SXFR_UNKNOWN_ERROR: 1251 break; 1252 case QHSTA_M_BAD_CMPL_STATUS_IN: 1253 /* No command complete after a status message */ 1254 ccb->ccb_h.status = CAM_SEQUENCE_FAIL; 1255 break; 1256 case QHSTA_M_AUTO_REQ_SENSE_FAIL: 1257 ccb->ccb_h.status = CAM_AUTOSENSE_FAIL; 1258 break; 1259 case QHSTA_M_INVALID_DEVICE: 1260 ccb->ccb_h.status = CAM_PATH_INVALID; 1261 break; 1262 case QHSTA_M_NO_AUTO_REQ_SENSE: 1263 /* 1264 * User didn't request sense, but we got a 1265 * check condition. 1266 */ 1267 ccb->csio.scsi_status = acb->queue.scsi_status; 1268 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR; 1269 break; 1270 default: 1271 panic("%s: Unhandled Host status error %x", 1272 adw_name(adw), acb->queue.host_status); 1273 /* NOTREACHED */ 1274 } 1275 } 1276 if (ccb->ccb_h.status != CAM_REQ_CMP) { 1277 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1278 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1279 } 1280 adwfreeacb(adw, acb); 1281 xpt_done(ccb); 1282 } 1283 1284 static void 1285 adwtimeout(void *arg) 1286 { 1287 struct acb *acb; 1288 union ccb *ccb; 1289 struct adw_softc *adw; 1290 adw_idle_cmd_status_t status; 1291 int s; 1292 1293 acb = (struct acb *)arg; 1294 ccb = acb->ccb; 1295 adw = (struct adw_softc *)ccb->ccb_h.ccb_adw_ptr; 1296 xpt_print_path(ccb->ccb_h.path); 1297 printf("ACB %p - timed out\n", (void *)acb); 1298 1299 s = splcam(); 1300 1301 if ((acb->state & ACB_ACTIVE) == 0) { 1302 xpt_print_path(ccb->ccb_h.path); 1303 printf("ACB %p - timed out CCB already completed\n", 1304 (void *)acb); 1305 splx(s); 1306 return; 1307 } 1308 1309 /* Attempt a BDR first */ 1310 adw_idle_cmd_send(adw, ADW_IDLE_CMD_DEVICE_RESET, 1311 ccb->ccb_h.target_id); 1312 splx(s); 1313 status = adw_idle_cmd_wait(adw); 1314 if (status == ADW_IDLE_CMD_SUCCESS) { 1315 printf("%s: BDR Delivered. No longer in timeout\n", 1316 adw_name(adw)); 1317 } else { 1318 adw_idle_cmd_send(adw, ADW_IDLE_CMD_SCSI_RESET, /*param*/0); 1319 status = adw_idle_cmd_wait(adw); 1320 if (status != ADW_IDLE_CMD_SUCCESS) 1321 panic("%s: Bus Reset during timeout failed", 1322 adw_name(adw)); 1323 } 1324 } 1325 1326 static void 1327 adw_handle_device_reset(struct adw_softc *adw, u_int target) 1328 { 1329 struct cam_path *path; 1330 cam_status error; 1331 1332 error = xpt_create_path(&path, /*periph*/NULL, cam_sim_path(adw->sim), 1333 target, CAM_LUN_WILDCARD); 1334 1335 if (error == CAM_REQ_CMP) { 1336 xpt_async(AC_SENT_BDR, path, NULL); 1337 xpt_free_path(path); 1338 } 1339 adw->last_reset = CAM_BDR_SENT; 1340 } 1341 1342 static void 1343 adw_handle_bus_reset(struct adw_softc *adw, int initiated) 1344 { 1345 if (initiated) { 1346 /* 1347 * The microcode currently sets the SCSI Bus Reset signal 1348 * while handling the AscSendIdleCmd() IDLE_CMD_SCSI_RESET 1349 * command above. But the SCSI Bus Reset Hold Time in the 1350 * microcode is not deterministic (it may in fact be for less 1351 * than the SCSI Spec. minimum of 25 us). Therefore on return 1352 * the Adv Library sets the SCSI Bus Reset signal for 1353 * ADW_SCSI_RESET_HOLD_TIME_US, which is defined to be greater 1354 * than 25 us. 1355 */ 1356 u_int scsi_ctrl; 1357 1358 scsi_ctrl = adw_inw(adw, ADW_SCSI_CTRL) & ~ADW_SCSI_CTRL_RSTOUT; 1359 adw_outw(adw, ADW_SCSI_CTRL, scsi_ctrl | ADW_SCSI_CTRL_RSTOUT); 1360 DELAY(ADW_SCSI_RESET_HOLD_TIME_US); 1361 adw_outw(adw, ADW_SCSI_CTRL, scsi_ctrl); 1362 1363 /* 1364 * We will perform the async notification when the 1365 * SCSI Reset interrupt occurs. 1366 */ 1367 } else 1368 xpt_async(AC_BUS_RESET, adw->path, NULL); 1369 adw->last_reset = CAM_SCSI_BUS_RESET; 1370 }
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