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sys/dev/buslogic/bt.c
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1 /*- 2 * Generic driver for the BusLogic MultiMaster SCSI host adapters 3 * Product specific probe and attach routines can be found in: 4 * sys/dev/buslogic/bt_isa.c BT-54X, BT-445 cards 5 * sys/dev/buslogic/bt_mca.c BT-64X, SDC3211B, SDC3211F 6 * sys/dev/buslogic/bt_pci.c BT-946, BT-948, BT-956, BT-958 cards 7 * 8 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 9 * 10 * Copyright (c) 1998, 1999 Justin T. Gibbs. 11 * All rights reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions, and the following disclaimer, 18 * without modification, immediately at the beginning of the file. 19 * 2. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 26 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD: releng/12.0/sys/dev/buslogic/bt.c 328523 2018-01-29 00:14:46Z imp $"); 37 38 /* 39 * Special thanks to Leonard N. Zubkoff for writing such a complete and 40 * well documented Mylex/BusLogic MultiMaster driver for Linux. Support 41 * in this driver for the wide range of MultiMaster controllers and 42 * firmware revisions, with their otherwise undocumented quirks, would not 43 * have been possible without his efforts. 44 */ 45 46 #include <sys/param.h> 47 #include <sys/conf.h> 48 #include <sys/systm.h> 49 #include <sys/malloc.h> 50 #include <sys/kernel.h> 51 #include <sys/lock.h> 52 #include <sys/module.h> 53 #include <sys/mutex.h> 54 #include <sys/sysctl.h> 55 #include <sys/bus.h> 56 57 #include <machine/bus.h> 58 #include <sys/rman.h> 59 60 #include <cam/cam.h> 61 #include <cam/cam_ccb.h> 62 #include <cam/cam_sim.h> 63 #include <cam/cam_xpt_sim.h> 64 #include <cam/cam_debug.h> 65 66 #include <cam/scsi/scsi_message.h> 67 68 #include <vm/vm.h> 69 #include <vm/pmap.h> 70 71 #include <dev/buslogic/btreg.h> 72 73 /* MailBox Management functions */ 74 static __inline void btnextinbox(struct bt_softc *bt); 75 static __inline void btnextoutbox(struct bt_softc *bt); 76 77 static __inline void 78 btnextinbox(struct bt_softc *bt) 79 { 80 if (bt->cur_inbox == bt->last_inbox) 81 bt->cur_inbox = bt->in_boxes; 82 else 83 bt->cur_inbox++; 84 } 85 86 static __inline void 87 btnextoutbox(struct bt_softc *bt) 88 { 89 if (bt->cur_outbox == bt->last_outbox) 90 bt->cur_outbox = bt->out_boxes; 91 else 92 bt->cur_outbox++; 93 } 94 95 /* CCB Mangement functions */ 96 static __inline u_int32_t btccbvtop(struct bt_softc *bt, 97 struct bt_ccb *bccb); 98 static __inline struct bt_ccb* btccbptov(struct bt_softc *bt, 99 u_int32_t ccb_addr); 100 static __inline u_int32_t btsensepaddr(struct bt_softc *bt, 101 struct bt_ccb *bccb); 102 static __inline struct scsi_sense_data* btsensevaddr(struct bt_softc *bt, 103 struct bt_ccb *bccb); 104 105 static __inline u_int32_t 106 btccbvtop(struct bt_softc *bt, struct bt_ccb *bccb) 107 { 108 return (bt->bt_ccb_physbase 109 + (u_int32_t)((caddr_t)bccb - (caddr_t)bt->bt_ccb_array)); 110 } 111 112 static __inline struct bt_ccb * 113 btccbptov(struct bt_softc *bt, u_int32_t ccb_addr) 114 { 115 return (bt->bt_ccb_array + 116 ((struct bt_ccb*)(uintptr_t)ccb_addr - (struct bt_ccb*)(uintptr_t)bt->bt_ccb_physbase)); 117 } 118 119 static __inline u_int32_t 120 btsensepaddr(struct bt_softc *bt, struct bt_ccb *bccb) 121 { 122 u_int index; 123 124 index = (u_int)(bccb - bt->bt_ccb_array); 125 return (bt->sense_buffers_physbase 126 + (index * sizeof(struct scsi_sense_data))); 127 } 128 129 static __inline struct scsi_sense_data * 130 btsensevaddr(struct bt_softc *bt, struct bt_ccb *bccb) 131 { 132 u_int index; 133 134 index = (u_int)(bccb - bt->bt_ccb_array); 135 return (bt->sense_buffers + index); 136 } 137 138 static __inline struct bt_ccb* btgetccb(struct bt_softc *bt); 139 static __inline void btfreeccb(struct bt_softc *bt, 140 struct bt_ccb *bccb); 141 static void btallocccbs(struct bt_softc *bt); 142 static bus_dmamap_callback_t btexecuteccb; 143 static void btdone(struct bt_softc *bt, struct bt_ccb *bccb, 144 bt_mbi_comp_code_t comp_code); 145 static void bt_intr_locked(struct bt_softc *bt); 146 147 /* Host adapter command functions */ 148 static int btreset(struct bt_softc* bt, int hard_reset); 149 150 /* Initialization functions */ 151 static int btinitmboxes(struct bt_softc *bt); 152 static bus_dmamap_callback_t btmapmboxes; 153 static bus_dmamap_callback_t btmapccbs; 154 static bus_dmamap_callback_t btmapsgs; 155 156 /* Transfer Negotiation Functions */ 157 static void btfetchtransinfo(struct bt_softc *bt, 158 struct ccb_trans_settings *cts); 159 160 /* CAM SIM entry points */ 161 #define ccb_bccb_ptr spriv_ptr0 162 #define ccb_bt_ptr spriv_ptr1 163 static void btaction(struct cam_sim *sim, union ccb *ccb); 164 static void btpoll(struct cam_sim *sim); 165 166 /* Our timeout handler */ 167 static void bttimeout(void *arg); 168 169 /* 170 * XXX 171 * Do our own re-probe protection until a configuration 172 * manager can do it for us. This ensures that we don't 173 * reprobe a card already found by the PCI probes. 174 */ 175 struct bt_isa_port bt_isa_ports[] = 176 { 177 { 0x130, 0, 4 }, 178 { 0x134, 0, 5 }, 179 { 0x230, 0, 2 }, 180 { 0x234, 0, 3 }, 181 { 0x330, 0, 0 }, 182 { 0x334, 0, 1 } 183 }; 184 185 /* 186 * I/O ports listed in the order enumerated by the 187 * card for certain op codes. 188 */ 189 u_int16_t bt_board_ports[] = 190 { 191 0x330, 192 0x334, 193 0x230, 194 0x234, 195 0x130, 196 0x134 197 }; 198 199 /* Exported functions */ 200 void 201 bt_init_softc(device_t dev, struct resource *port, 202 struct resource *irq, struct resource *drq) 203 { 204 struct bt_softc *bt = device_get_softc(dev); 205 206 SLIST_INIT(&bt->free_bt_ccbs); 207 LIST_INIT(&bt->pending_ccbs); 208 SLIST_INIT(&bt->sg_maps); 209 bt->dev = dev; 210 bt->port = port; 211 bt->irq = irq; 212 bt->drq = drq; 213 mtx_init(&bt->lock, "bt", NULL, MTX_DEF); 214 } 215 216 void 217 bt_free_softc(device_t dev) 218 { 219 struct bt_softc *bt = device_get_softc(dev); 220 221 switch (bt->init_level) { 222 default: 223 case 11: 224 bus_dmamap_unload(bt->sense_dmat, bt->sense_dmamap); 225 case 10: 226 bus_dmamem_free(bt->sense_dmat, bt->sense_buffers, 227 bt->sense_dmamap); 228 case 9: 229 bus_dma_tag_destroy(bt->sense_dmat); 230 case 8: 231 { 232 struct sg_map_node *sg_map; 233 234 while ((sg_map = SLIST_FIRST(&bt->sg_maps))!= NULL) { 235 SLIST_REMOVE_HEAD(&bt->sg_maps, links); 236 bus_dmamap_unload(bt->sg_dmat, 237 sg_map->sg_dmamap); 238 bus_dmamem_free(bt->sg_dmat, sg_map->sg_vaddr, 239 sg_map->sg_dmamap); 240 free(sg_map, M_DEVBUF); 241 } 242 bus_dma_tag_destroy(bt->sg_dmat); 243 } 244 case 7: 245 bus_dmamap_unload(bt->ccb_dmat, bt->ccb_dmamap); 246 /* FALLTHROUGH */ 247 case 6: 248 bus_dmamem_free(bt->ccb_dmat, bt->bt_ccb_array, 249 bt->ccb_dmamap); 250 /* FALLTHROUGH */ 251 case 5: 252 bus_dma_tag_destroy(bt->ccb_dmat); 253 /* FALLTHROUGH */ 254 case 4: 255 bus_dmamap_unload(bt->mailbox_dmat, bt->mailbox_dmamap); 256 /* FALLTHROUGH */ 257 case 3: 258 bus_dmamem_free(bt->mailbox_dmat, bt->in_boxes, 259 bt->mailbox_dmamap); 260 /* FALLTHROUGH */ 261 case 2: 262 bus_dma_tag_destroy(bt->buffer_dmat); 263 /* FALLTHROUGH */ 264 case 1: 265 bus_dma_tag_destroy(bt->mailbox_dmat); 266 /* FALLTHROUGH */ 267 case 0: 268 break; 269 } 270 mtx_destroy(&bt->lock); 271 } 272 273 int 274 bt_port_probe(device_t dev, struct bt_probe_info *info) 275 { 276 struct bt_softc *bt = device_get_softc(dev); 277 config_data_t config_data; 278 int error; 279 280 /* See if there is really a card present */ 281 if (bt_probe(dev) || bt_fetch_adapter_info(dev)) 282 return(1); 283 284 /* 285 * Determine our IRQ, and DMA settings and 286 * export them to the configuration system. 287 */ 288 mtx_lock(&bt->lock); 289 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 290 (u_int8_t*)&config_data, sizeof(config_data), 291 DEFAULT_CMD_TIMEOUT); 292 mtx_unlock(&bt->lock); 293 if (error != 0) { 294 printf("bt_port_probe: Could not determine IRQ or DMA " 295 "settings for adapter.\n"); 296 return (1); 297 } 298 299 if (bt->model[0] == '5') { 300 /* DMA settings only make sense for ISA cards */ 301 switch (config_data.dma_chan) { 302 case DMA_CHAN_5: 303 info->drq = 5; 304 break; 305 case DMA_CHAN_6: 306 info->drq = 6; 307 break; 308 case DMA_CHAN_7: 309 info->drq = 7; 310 break; 311 default: 312 printf("bt_port_probe: Invalid DMA setting " 313 "detected for adapter.\n"); 314 return (1); 315 } 316 } else { 317 info->drq = -1; 318 } 319 switch (config_data.irq) { 320 case IRQ_9: 321 case IRQ_10: 322 case IRQ_11: 323 case IRQ_12: 324 case IRQ_14: 325 case IRQ_15: 326 info->irq = ffs(config_data.irq) + 8; 327 break; 328 default: 329 printf("bt_port_probe: Invalid IRQ setting %x" 330 "detected for adapter.\n", config_data.irq); 331 return (1); 332 } 333 return (0); 334 } 335 336 /* 337 * Probe the adapter and verify that the card is a BusLogic. 338 */ 339 int 340 bt_probe(device_t dev) 341 { 342 struct bt_softc *bt = device_get_softc(dev); 343 esetup_info_data_t esetup_info; 344 u_int status; 345 u_int intstat; 346 u_int geometry; 347 int error; 348 u_int8_t param; 349 350 /* 351 * See if the three I/O ports look reasonable. 352 * Touch the minimal number of registers in the 353 * failure case. 354 */ 355 status = bt_inb(bt, STATUS_REG); 356 if ((status == 0) 357 || (status & (DIAG_ACTIVE|CMD_REG_BUSY| 358 STATUS_REG_RSVD|CMD_INVALID)) != 0) { 359 if (bootverbose) 360 device_printf(dev, "Failed Status Reg Test - %x\n", 361 status); 362 return (ENXIO); 363 } 364 365 intstat = bt_inb(bt, INTSTAT_REG); 366 if ((intstat & INTSTAT_REG_RSVD) != 0) { 367 device_printf(dev, "Failed Intstat Reg Test\n"); 368 return (ENXIO); 369 } 370 371 geometry = bt_inb(bt, GEOMETRY_REG); 372 if (geometry == 0xFF) { 373 if (bootverbose) 374 device_printf(dev, "Failed Geometry Reg Test\n"); 375 return (ENXIO); 376 } 377 378 /* 379 * Looking good so far. Final test is to reset the 380 * adapter and attempt to fetch the extended setup 381 * information. This should filter out all 1542 cards. 382 */ 383 mtx_lock(&bt->lock); 384 if ((error = btreset(bt, /*hard_reset*/TRUE)) != 0) { 385 mtx_unlock(&bt->lock); 386 if (bootverbose) 387 device_printf(dev, "Failed Reset\n"); 388 return (ENXIO); 389 } 390 391 param = sizeof(esetup_info); 392 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, ¶m, /*parmlen*/1, 393 (u_int8_t*)&esetup_info, sizeof(esetup_info), 394 DEFAULT_CMD_TIMEOUT); 395 mtx_unlock(&bt->lock); 396 if (error != 0) { 397 return (ENXIO); 398 } 399 400 return (0); 401 } 402 403 /* 404 * Pull the boards setup information and record it in our softc. 405 */ 406 int 407 bt_fetch_adapter_info(device_t dev) 408 { 409 struct bt_softc *bt = device_get_softc(dev); 410 board_id_data_t board_id; 411 esetup_info_data_t esetup_info; 412 config_data_t config_data; 413 int error; 414 u_int8_t length_param; 415 416 /* First record the firmware version */ 417 mtx_lock(&bt->lock); 418 error = bt_cmd(bt, BOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0, 419 (u_int8_t*)&board_id, sizeof(board_id), 420 DEFAULT_CMD_TIMEOUT); 421 if (error != 0) { 422 mtx_unlock(&bt->lock); 423 device_printf(dev, "bt_fetch_adapter_info - Failed Get Board Info\n"); 424 return (error); 425 } 426 bt->firmware_ver[0] = board_id.firmware_rev_major; 427 bt->firmware_ver[1] = '.'; 428 bt->firmware_ver[2] = board_id.firmware_rev_minor; 429 bt->firmware_ver[3] = '\0'; 430 431 /* 432 * Depending on the firmware major and minor version, 433 * we may be able to fetch additional minor version info. 434 */ 435 if (bt->firmware_ver[0] > '') { 436 437 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_3DIG, NULL, /*parmlen*/0, 438 (u_int8_t*)&bt->firmware_ver[3], 1, 439 DEFAULT_CMD_TIMEOUT); 440 if (error != 0) { 441 mtx_unlock(&bt->lock); 442 device_printf(dev, 443 "bt_fetch_adapter_info - Failed Get " 444 "Firmware 3rd Digit\n"); 445 return (error); 446 } 447 if (bt->firmware_ver[3] == ' ') 448 bt->firmware_ver[3] = '\0'; 449 bt->firmware_ver[4] = '\0'; 450 } 451 452 if (strcmp(bt->firmware_ver, "3.3") >= 0) { 453 454 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_4DIG, NULL, /*parmlen*/0, 455 (u_int8_t*)&bt->firmware_ver[4], 1, 456 DEFAULT_CMD_TIMEOUT); 457 if (error != 0) { 458 mtx_unlock(&bt->lock); 459 device_printf(dev, 460 "bt_fetch_adapter_info - Failed Get " 461 "Firmware 4th Digit\n"); 462 return (error); 463 } 464 if (bt->firmware_ver[4] == ' ') 465 bt->firmware_ver[4] = '\0'; 466 bt->firmware_ver[5] = '\0'; 467 } 468 469 /* 470 * Some boards do not handle the "recently documented" 471 * Inquire Board Model Number command correctly or do not give 472 * exact information. Use the Firmware and Extended Setup 473 * information in these cases to come up with the right answer. 474 * The major firmware revision number indicates: 475 * 476 * 5.xx BusLogic "W" Series Host Adapters: 477 * BT-948/958/958D 478 * 4.xx BusLogic "C" Series Host Adapters: 479 * BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF 480 * 3.xx BusLogic "S" Series Host Adapters: 481 * BT-747S/747D/757S/757D/445S/545S/542D 482 * BT-542B/742A (revision H) 483 * 2.xx BusLogic "A" Series Host Adapters: 484 * BT-542B/742A (revision G and below) 485 */ 486 length_param = sizeof(esetup_info); 487 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, &length_param, /*parmlen*/1, 488 (u_int8_t*)&esetup_info, sizeof(esetup_info), 489 DEFAULT_CMD_TIMEOUT); 490 if (error != 0) { 491 mtx_unlock(&bt->lock); 492 return (error); 493 } 494 495 bt->bios_addr = esetup_info.bios_addr << 12; 496 497 bt->mailbox_addrlimit = BUS_SPACE_MAXADDR; 498 if (esetup_info.bus_type == 'A' 499 && bt->firmware_ver[0] == '2') { 500 snprintf(bt->model, sizeof(bt->model), "542B"); 501 } else { 502 ha_model_data_t model_data; 503 int i; 504 505 length_param = sizeof(model_data); 506 error = bt_cmd(bt, BOP_INQUIRE_MODEL, &length_param, 1, 507 (u_int8_t*)&model_data, sizeof(model_data), 508 DEFAULT_CMD_TIMEOUT); 509 if (error != 0) { 510 mtx_unlock(&bt->lock); 511 device_printf(dev, 512 "bt_fetch_adapter_info - Failed Inquire " 513 "Model Number\n"); 514 return (error); 515 } 516 for (i = 0; i < sizeof(model_data.ascii_model); i++) { 517 bt->model[i] = model_data.ascii_model[i]; 518 if (bt->model[i] == ' ') 519 break; 520 } 521 bt->model[i] = '\0'; 522 } 523 524 bt->level_trigger_ints = esetup_info.level_trigger_ints ? 1 : 0; 525 526 /* SG element limits */ 527 bt->max_sg = esetup_info.max_sg; 528 529 /* Set feature flags */ 530 bt->wide_bus = esetup_info.wide_bus; 531 bt->diff_bus = esetup_info.diff_bus; 532 bt->ultra_scsi = esetup_info.ultra_scsi; 533 534 if ((bt->firmware_ver[0] == '5') 535 || (bt->firmware_ver[0] == '4' && bt->wide_bus)) 536 bt->extended_lun = TRUE; 537 538 bt->strict_rr = (strcmp(bt->firmware_ver, "3.31") >= 0); 539 540 bt->extended_trans = 541 ((bt_inb(bt, GEOMETRY_REG) & EXTENDED_TRANSLATION) != 0); 542 543 /* 544 * Determine max CCB count and whether tagged queuing is 545 * available based on controller type. Tagged queuing 546 * only works on 'W' series adapters, 'C' series adapters 547 * with firmware of rev 4.42 and higher, and 'S' series 548 * adapters with firmware of rev 3.35 and higher. The 549 * maximum CCB counts are as follows: 550 * 551 * 192 BT-948/958/958D 552 * 100 BT-946C/956C/956CD/747C/757C/757CD/445C 553 * 50 BT-545C/540CF 554 * 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A 555 */ 556 if (bt->firmware_ver[0] == '5') { 557 bt->max_ccbs = 192; 558 bt->tag_capable = TRUE; 559 } else if (bt->firmware_ver[0] == '4') { 560 if (bt->model[0] == '5') 561 bt->max_ccbs = 50; 562 else 563 bt->max_ccbs = 100; 564 bt->tag_capable = (strcmp(bt->firmware_ver, "4.22") >= 0); 565 } else { 566 bt->max_ccbs = 30; 567 if (bt->firmware_ver[0] == '3' 568 && (strcmp(bt->firmware_ver, "3.35") >= 0)) 569 bt->tag_capable = TRUE; 570 else 571 bt->tag_capable = FALSE; 572 } 573 574 if (bt->tag_capable != FALSE) 575 bt->tags_permitted = ALL_TARGETS; 576 577 /* Determine Sync/Wide/Disc settings */ 578 if (bt->firmware_ver[0] >= '4') { 579 auto_scsi_data_t auto_scsi_data; 580 fetch_lram_params_t fetch_lram_params; 581 int error; 582 583 /* 584 * These settings are stored in the 585 * AutoSCSI data in LRAM of 'W' and 'C' 586 * adapters. 587 */ 588 fetch_lram_params.offset = AUTO_SCSI_BYTE_OFFSET; 589 fetch_lram_params.response_len = sizeof(auto_scsi_data); 590 error = bt_cmd(bt, BOP_FETCH_LRAM, 591 (u_int8_t*)&fetch_lram_params, 592 sizeof(fetch_lram_params), 593 (u_int8_t*)&auto_scsi_data, 594 sizeof(auto_scsi_data), DEFAULT_CMD_TIMEOUT); 595 596 if (error != 0) { 597 mtx_unlock(&bt->lock); 598 device_printf(dev, 599 "bt_fetch_adapter_info - Failed " 600 "Get Auto SCSI Info\n"); 601 return (error); 602 } 603 604 bt->disc_permitted = auto_scsi_data.low_disc_permitted 605 | (auto_scsi_data.high_disc_permitted << 8); 606 bt->sync_permitted = auto_scsi_data.low_sync_permitted 607 | (auto_scsi_data.high_sync_permitted << 8); 608 bt->fast_permitted = auto_scsi_data.low_fast_permitted 609 | (auto_scsi_data.high_fast_permitted << 8); 610 bt->ultra_permitted = auto_scsi_data.low_ultra_permitted 611 | (auto_scsi_data.high_ultra_permitted << 8); 612 bt->wide_permitted = auto_scsi_data.low_wide_permitted 613 | (auto_scsi_data.high_wide_permitted << 8); 614 615 if (bt->ultra_scsi == FALSE) 616 bt->ultra_permitted = 0; 617 618 if (bt->wide_bus == FALSE) 619 bt->wide_permitted = 0; 620 } else { 621 /* 622 * 'S' and 'A' series have this information in the setup 623 * information structure. 624 */ 625 setup_data_t setup_info; 626 627 length_param = sizeof(setup_info); 628 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, &length_param, 629 /*paramlen*/1, (u_int8_t*)&setup_info, 630 sizeof(setup_info), DEFAULT_CMD_TIMEOUT); 631 632 if (error != 0) { 633 mtx_unlock(&bt->lock); 634 device_printf(dev, 635 "bt_fetch_adapter_info - Failed " 636 "Get Setup Info\n"); 637 return (error); 638 } 639 640 if (setup_info.initiate_sync != 0) { 641 bt->sync_permitted = ALL_TARGETS; 642 643 if (bt->model[0] == '7') { 644 if (esetup_info.sync_neg10MB != 0) 645 bt->fast_permitted = ALL_TARGETS; 646 if (strcmp(bt->model, "757") == 0) 647 bt->wide_permitted = ALL_TARGETS; 648 } 649 } 650 bt->disc_permitted = ALL_TARGETS; 651 } 652 653 /* We need as many mailboxes as we can have ccbs */ 654 bt->num_boxes = bt->max_ccbs; 655 656 /* Determine our SCSI ID */ 657 658 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 659 (u_int8_t*)&config_data, sizeof(config_data), 660 DEFAULT_CMD_TIMEOUT); 661 mtx_unlock(&bt->lock); 662 if (error != 0) { 663 device_printf(dev, 664 "bt_fetch_adapter_info - Failed Get Config\n"); 665 return (error); 666 } 667 bt->scsi_id = config_data.scsi_id; 668 669 return (0); 670 } 671 672 /* 673 * Start the board, ready for normal operation 674 */ 675 int 676 bt_init(device_t dev) 677 { 678 struct bt_softc *bt = device_get_softc(dev); 679 680 /* Announce the Adapter */ 681 device_printf(dev, "BT-%s FW Rev. %s ", bt->model, bt->firmware_ver); 682 683 if (bt->ultra_scsi != 0) 684 printf("Ultra "); 685 686 if (bt->wide_bus != 0) 687 printf("Wide "); 688 else 689 printf("Narrow "); 690 691 if (bt->diff_bus != 0) 692 printf("Diff "); 693 694 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", bt->scsi_id, 695 bt->max_ccbs); 696 697 /* 698 * Create our DMA tags. These tags define the kinds of device 699 * accessible memory allocations and memory mappings we will 700 * need to perform during normal operation. 701 * 702 * Unless we need to further restrict the allocation, we rely 703 * on the restrictions of the parent dmat, hence the common 704 * use of MAXADDR and MAXSIZE. 705 */ 706 707 /* DMA tag for mapping buffers into device visible space. */ 708 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 709 /* alignment */ 1, 710 /* boundary */ 0, 711 /* lowaddr */ BUS_SPACE_MAXADDR, 712 /* highaddr */ BUS_SPACE_MAXADDR, 713 /* filter */ NULL, 714 /* filterarg */ NULL, 715 /* maxsize */ DFLTPHYS, 716 /* nsegments */ BT_NSEG, 717 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 718 /* flags */ BUS_DMA_ALLOCNOW, 719 /* lockfunc */ busdma_lock_mutex, 720 /* lockarg */ &bt->lock, 721 &bt->buffer_dmat) != 0) { 722 goto error_exit; 723 } 724 725 bt->init_level++; 726 /* DMA tag for our mailboxes */ 727 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 728 /* alignment */ 1, 729 /* boundary */ 0, 730 /* lowaddr */ bt->mailbox_addrlimit, 731 /* highaddr */ BUS_SPACE_MAXADDR, 732 /* filter */ NULL, 733 /* filterarg */ NULL, 734 /* maxsize */ bt->num_boxes * 735 (sizeof(bt_mbox_in_t) + 736 sizeof(bt_mbox_out_t)), 737 /* nsegments */ 1, 738 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 739 /* flags */ 0, 740 /* lockfunc */ NULL, 741 /* lockarg */ NULL, 742 &bt->mailbox_dmat) != 0) { 743 goto error_exit; 744 } 745 746 bt->init_level++; 747 748 /* Allocation for our mailboxes */ 749 if (bus_dmamem_alloc(bt->mailbox_dmat, (void **)&bt->out_boxes, 750 BUS_DMA_NOWAIT, &bt->mailbox_dmamap) != 0) { 751 goto error_exit; 752 } 753 754 bt->init_level++; 755 756 /* And permanently map them */ 757 bus_dmamap_load(bt->mailbox_dmat, bt->mailbox_dmamap, 758 bt->out_boxes, 759 bt->num_boxes * (sizeof(bt_mbox_in_t) 760 + sizeof(bt_mbox_out_t)), 761 btmapmboxes, bt, /*flags*/0); 762 763 bt->init_level++; 764 765 bt->in_boxes = (bt_mbox_in_t *)&bt->out_boxes[bt->num_boxes]; 766 767 mtx_lock(&bt->lock); 768 btinitmboxes(bt); 769 mtx_unlock(&bt->lock); 770 771 /* DMA tag for our ccb structures */ 772 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 773 /* alignment */ 1, 774 /* boundary */ 0, 775 /* lowaddr */ BUS_SPACE_MAXADDR, 776 /* highaddr */ BUS_SPACE_MAXADDR, 777 /* filter */ NULL, 778 /* filterarg */ NULL, 779 /* maxsize */ bt->max_ccbs * 780 sizeof(struct bt_ccb), 781 /* nsegments */ 1, 782 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 783 /* flags */ 0, 784 /* lockfunc */ NULL, 785 /* lockarg */ NULL, 786 &bt->ccb_dmat) != 0) { 787 goto error_exit; 788 } 789 790 bt->init_level++; 791 792 /* Allocation for our ccbs */ 793 if (bus_dmamem_alloc(bt->ccb_dmat, (void **)&bt->bt_ccb_array, 794 BUS_DMA_NOWAIT, &bt->ccb_dmamap) != 0) { 795 goto error_exit; 796 } 797 798 bt->init_level++; 799 800 /* And permanently map them */ 801 bus_dmamap_load(bt->ccb_dmat, bt->ccb_dmamap, 802 bt->bt_ccb_array, 803 bt->max_ccbs * sizeof(struct bt_ccb), 804 btmapccbs, bt, /*flags*/0); 805 806 bt->init_level++; 807 808 /* DMA tag for our S/G structures. We allocate in page sized chunks */ 809 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 810 /* alignment */ 1, 811 /* boundary */ 0, 812 /* lowaddr */ BUS_SPACE_MAXADDR, 813 /* highaddr */ BUS_SPACE_MAXADDR, 814 /* filter */ NULL, 815 /* filterarg */ NULL, 816 /* maxsize */ PAGE_SIZE, 817 /* nsegments */ 1, 818 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 819 /* flags */ 0, 820 /* lockfunc */ NULL, 821 /* lockarg */ NULL, 822 &bt->sg_dmat) != 0) { 823 goto error_exit; 824 } 825 826 bt->init_level++; 827 828 /* Perform initial CCB allocation */ 829 bzero(bt->bt_ccb_array, bt->max_ccbs * sizeof(struct bt_ccb)); 830 btallocccbs(bt); 831 832 if (bt->num_ccbs == 0) { 833 device_printf(dev, 834 "bt_init - Unable to allocate initial ccbs\n"); 835 goto error_exit; 836 } 837 838 /* 839 * Note that we are going and return (to attach) 840 */ 841 return 0; 842 843 error_exit: 844 845 return (ENXIO); 846 } 847 848 int 849 bt_attach(device_t dev) 850 { 851 struct bt_softc *bt = device_get_softc(dev); 852 int tagged_dev_openings; 853 struct cam_devq *devq; 854 int error; 855 856 /* 857 * We reserve 1 ccb for error recovery, so don't 858 * tell the XPT about it. 859 */ 860 if (bt->tag_capable != 0) 861 tagged_dev_openings = bt->max_ccbs - 1; 862 else 863 tagged_dev_openings = 0; 864 865 /* 866 * Create the device queue for our SIM. 867 */ 868 devq = cam_simq_alloc(bt->max_ccbs - 1); 869 if (devq == NULL) 870 return (ENOMEM); 871 872 /* 873 * Construct our SIM entry 874 */ 875 bt->sim = cam_sim_alloc(btaction, btpoll, "bt", bt, 876 device_get_unit(bt->dev), &bt->lock, 2, tagged_dev_openings, devq); 877 if (bt->sim == NULL) { 878 cam_simq_free(devq); 879 return (ENOMEM); 880 } 881 882 mtx_lock(&bt->lock); 883 if (xpt_bus_register(bt->sim, dev, 0) != CAM_SUCCESS) { 884 cam_sim_free(bt->sim, /*free_devq*/TRUE); 885 mtx_unlock(&bt->lock); 886 return (ENXIO); 887 } 888 889 if (xpt_create_path(&bt->path, /*periph*/NULL, 890 cam_sim_path(bt->sim), CAM_TARGET_WILDCARD, 891 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 892 xpt_bus_deregister(cam_sim_path(bt->sim)); 893 cam_sim_free(bt->sim, /*free_devq*/TRUE); 894 mtx_unlock(&bt->lock); 895 return (ENXIO); 896 } 897 mtx_unlock(&bt->lock); 898 899 /* 900 * Setup interrupt. 901 */ 902 error = bus_setup_intr(dev, bt->irq, INTR_TYPE_CAM | INTR_ENTROPY | 903 INTR_MPSAFE, NULL, bt_intr, bt, &bt->ih); 904 if (error) { 905 device_printf(dev, "bus_setup_intr() failed: %d\n", error); 906 return (error); 907 } 908 gone_in_dev(dev, 12, "bt(4) driver"); 909 910 return (0); 911 } 912 913 int 914 bt_check_probed_iop(u_int ioport) 915 { 916 u_int i; 917 918 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 919 if (bt_isa_ports[i].addr == ioport) { 920 if (bt_isa_ports[i].probed != 0) 921 return (1); 922 else { 923 return (0); 924 } 925 } 926 } 927 return (1); 928 } 929 930 void 931 bt_mark_probed_bio(isa_compat_io_t port) 932 { 933 if (port < BIO_DISABLED) 934 bt_mark_probed_iop(bt_board_ports[port]); 935 } 936 937 void 938 bt_mark_probed_iop(u_int ioport) 939 { 940 u_int i; 941 942 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 943 if (ioport == bt_isa_ports[i].addr) { 944 bt_isa_ports[i].probed = 1; 945 break; 946 } 947 } 948 } 949 950 void 951 bt_find_probe_range(int ioport, int *port_index, int *max_port_index) 952 { 953 if (ioport > 0) { 954 int i; 955 956 for (i = 0;i < BT_NUM_ISAPORTS; i++) 957 if (ioport <= bt_isa_ports[i].addr) 958 break; 959 if ((i >= BT_NUM_ISAPORTS) 960 || (ioport != bt_isa_ports[i].addr)) { 961 printf( 962 "bt_find_probe_range: Invalid baseport of 0x%x specified.\n" 963 "bt_find_probe_range: Nearest valid baseport is 0x%x.\n" 964 "bt_find_probe_range: Failing probe.\n", 965 ioport, 966 (i < BT_NUM_ISAPORTS) 967 ? bt_isa_ports[i].addr 968 : bt_isa_ports[BT_NUM_ISAPORTS - 1].addr); 969 *port_index = *max_port_index = -1; 970 return; 971 } 972 *port_index = *max_port_index = bt_isa_ports[i].bio; 973 } else { 974 *port_index = 0; 975 *max_port_index = BT_NUM_ISAPORTS - 1; 976 } 977 } 978 979 int 980 bt_iop_from_bio(isa_compat_io_t bio_index) 981 { 982 if (bio_index < BT_NUM_ISAPORTS) 983 return (bt_board_ports[bio_index]); 984 return (-1); 985 } 986 987 988 static void 989 btallocccbs(struct bt_softc *bt) 990 { 991 struct bt_ccb *next_ccb; 992 struct sg_map_node *sg_map; 993 bus_addr_t physaddr; 994 bt_sg_t *segs; 995 int newcount; 996 int i; 997 998 if (bt->num_ccbs >= bt->max_ccbs) 999 /* Can't allocate any more */ 1000 return; 1001 1002 next_ccb = &bt->bt_ccb_array[bt->num_ccbs]; 1003 1004 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT); 1005 1006 if (sg_map == NULL) 1007 goto error_exit; 1008 1009 /* Allocate S/G space for the next batch of CCBS */ 1010 if (bus_dmamem_alloc(bt->sg_dmat, (void **)&sg_map->sg_vaddr, 1011 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 1012 free(sg_map, M_DEVBUF); 1013 goto error_exit; 1014 } 1015 1016 SLIST_INSERT_HEAD(&bt->sg_maps, sg_map, links); 1017 1018 bus_dmamap_load(bt->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 1019 PAGE_SIZE, btmapsgs, bt, /*flags*/0); 1020 1021 segs = sg_map->sg_vaddr; 1022 physaddr = sg_map->sg_physaddr; 1023 1024 newcount = (PAGE_SIZE / (BT_NSEG * sizeof(bt_sg_t))); 1025 for (i = 0; bt->num_ccbs < bt->max_ccbs && i < newcount; i++) { 1026 int error; 1027 1028 next_ccb->sg_list = segs; 1029 next_ccb->sg_list_phys = physaddr; 1030 next_ccb->flags = BCCB_FREE; 1031 callout_init_mtx(&next_ccb->timer, &bt->lock, 0); 1032 error = bus_dmamap_create(bt->buffer_dmat, /*flags*/0, 1033 &next_ccb->dmamap); 1034 if (error != 0) 1035 break; 1036 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, next_ccb, links); 1037 segs += BT_NSEG; 1038 physaddr += (BT_NSEG * sizeof(bt_sg_t)); 1039 next_ccb++; 1040 bt->num_ccbs++; 1041 } 1042 1043 /* Reserve a CCB for error recovery */ 1044 if (bt->recovery_bccb == NULL) { 1045 bt->recovery_bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1046 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1047 } 1048 1049 if (SLIST_FIRST(&bt->free_bt_ccbs) != NULL) 1050 return; 1051 1052 error_exit: 1053 device_printf(bt->dev, "Can't malloc BCCBs\n"); 1054 } 1055 1056 static __inline void 1057 btfreeccb(struct bt_softc *bt, struct bt_ccb *bccb) 1058 { 1059 1060 if (!dumping) 1061 mtx_assert(&bt->lock, MA_OWNED); 1062 if ((bccb->flags & BCCB_ACTIVE) != 0) 1063 LIST_REMOVE(&bccb->ccb->ccb_h, sim_links.le); 1064 if (bt->resource_shortage != 0 1065 && (bccb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 1066 bccb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1067 bt->resource_shortage = FALSE; 1068 } 1069 bccb->flags = BCCB_FREE; 1070 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, bccb, links); 1071 bt->active_ccbs--; 1072 } 1073 1074 static __inline struct bt_ccb* 1075 btgetccb(struct bt_softc *bt) 1076 { 1077 struct bt_ccb* bccb; 1078 1079 if (!dumping) 1080 mtx_assert(&bt->lock, MA_OWNED); 1081 if ((bccb = SLIST_FIRST(&bt->free_bt_ccbs)) != NULL) { 1082 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1083 bt->active_ccbs++; 1084 } else { 1085 btallocccbs(bt); 1086 bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1087 if (bccb != NULL) { 1088 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1089 bt->active_ccbs++; 1090 } 1091 } 1092 1093 return (bccb); 1094 } 1095 1096 static void 1097 btaction(struct cam_sim *sim, union ccb *ccb) 1098 { 1099 struct bt_softc *bt; 1100 1101 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("btaction\n")); 1102 1103 bt = (struct bt_softc *)cam_sim_softc(sim); 1104 mtx_assert(&bt->lock, MA_OWNED); 1105 1106 switch (ccb->ccb_h.func_code) { 1107 /* Common cases first */ 1108 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 1109 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 1110 { 1111 struct bt_ccb *bccb; 1112 struct bt_hccb *hccb; 1113 1114 /* 1115 * get a bccb to use. 1116 */ 1117 if ((bccb = btgetccb(bt)) == NULL) { 1118 1119 bt->resource_shortage = TRUE; 1120 xpt_freeze_simq(bt->sim, /*count*/1); 1121 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1122 xpt_done(ccb); 1123 return; 1124 } 1125 1126 hccb = &bccb->hccb; 1127 1128 /* 1129 * So we can find the BCCB when an abort is requested 1130 */ 1131 bccb->ccb = ccb; 1132 ccb->ccb_h.ccb_bccb_ptr = bccb; 1133 ccb->ccb_h.ccb_bt_ptr = bt; 1134 1135 /* 1136 * Put all the arguments for the xfer in the bccb 1137 */ 1138 hccb->target_id = ccb->ccb_h.target_id; 1139 hccb->target_lun = ccb->ccb_h.target_lun; 1140 hccb->btstat = 0; 1141 hccb->sdstat = 0; 1142 1143 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1144 struct ccb_scsiio *csio; 1145 struct ccb_hdr *ccbh; 1146 int error; 1147 1148 csio = &ccb->csio; 1149 ccbh = &csio->ccb_h; 1150 hccb->opcode = INITIATOR_CCB_WRESID; 1151 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) ? 1 : 0; 1152 hccb->dataout =(ccb->ccb_h.flags & CAM_DIR_OUT) ? 1 : 0; 1153 hccb->cmd_len = csio->cdb_len; 1154 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) { 1155 ccb->ccb_h.status = CAM_REQ_INVALID; 1156 btfreeccb(bt, bccb); 1157 xpt_done(ccb); 1158 return; 1159 } 1160 hccb->sense_len = csio->sense_len; 1161 if ((ccbh->flags & CAM_TAG_ACTION_VALID) != 0 1162 && ccb->csio.tag_action != CAM_TAG_ACTION_NONE) { 1163 hccb->tag_enable = TRUE; 1164 hccb->tag_type = (ccb->csio.tag_action & 0x3); 1165 } else { 1166 hccb->tag_enable = FALSE; 1167 hccb->tag_type = 0; 1168 } 1169 if ((ccbh->flags & CAM_CDB_POINTER) != 0) { 1170 if ((ccbh->flags & CAM_CDB_PHYS) == 0) { 1171 bcopy(csio->cdb_io.cdb_ptr, 1172 hccb->scsi_cdb, hccb->cmd_len); 1173 } else { 1174 /* I guess I could map it in... */ 1175 ccbh->status = CAM_REQ_INVALID; 1176 btfreeccb(bt, bccb); 1177 xpt_done(ccb); 1178 return; 1179 } 1180 } else { 1181 bcopy(csio->cdb_io.cdb_bytes, 1182 hccb->scsi_cdb, hccb->cmd_len); 1183 } 1184 /* If need be, bounce our sense buffer */ 1185 if (bt->sense_buffers != NULL) { 1186 hccb->sense_addr = btsensepaddr(bt, bccb); 1187 } else { 1188 hccb->sense_addr = vtophys(&csio->sense_data); 1189 } 1190 /* 1191 * If we have any data to send with this command, 1192 * map it into bus space. 1193 */ 1194 error = bus_dmamap_load_ccb( 1195 bt->buffer_dmat, 1196 bccb->dmamap, 1197 ccb, 1198 btexecuteccb, 1199 bccb, 1200 /*flags*/0); 1201 if (error == EINPROGRESS) { 1202 /* 1203 * So as to maintain ordering, freeze the 1204 * controller queue until our mapping is 1205 * returned. 1206 */ 1207 xpt_freeze_simq(bt->sim, 1); 1208 csio->ccb_h.status |= CAM_RELEASE_SIMQ; 1209 } 1210 } else { 1211 hccb->opcode = INITIATOR_BUS_DEV_RESET; 1212 /* No data transfer */ 1213 hccb->datain = TRUE; 1214 hccb->dataout = TRUE; 1215 hccb->cmd_len = 0; 1216 hccb->sense_len = 0; 1217 hccb->tag_enable = FALSE; 1218 hccb->tag_type = 0; 1219 btexecuteccb(bccb, NULL, 0, 0); 1220 } 1221 break; 1222 } 1223 case XPT_ABORT: /* Abort the specified CCB */ 1224 /* XXX Implement */ 1225 ccb->ccb_h.status = CAM_REQ_INVALID; 1226 xpt_done(ccb); 1227 break; 1228 case XPT_SET_TRAN_SETTINGS: 1229 { 1230 /* XXX Implement */ 1231 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 1232 xpt_done(ccb); 1233 break; 1234 } 1235 case XPT_GET_TRAN_SETTINGS: 1236 /* Get default/user set transfer settings for the target */ 1237 { 1238 struct ccb_trans_settings *cts; 1239 u_int target_mask; 1240 1241 cts = &ccb->cts; 1242 target_mask = 0x01 << ccb->ccb_h.target_id; 1243 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 1244 struct ccb_trans_settings_scsi *scsi = 1245 &cts->proto_specific.scsi; 1246 struct ccb_trans_settings_spi *spi = 1247 &cts->xport_specific.spi; 1248 cts->protocol = PROTO_SCSI; 1249 cts->protocol_version = SCSI_REV_2; 1250 cts->transport = XPORT_SPI; 1251 cts->transport_version = 2; 1252 1253 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1254 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 1255 1256 if ((bt->disc_permitted & target_mask) != 0) 1257 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 1258 if ((bt->tags_permitted & target_mask) != 0) 1259 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 1260 1261 if ((bt->ultra_permitted & target_mask) != 0) 1262 spi->sync_period = 12; 1263 else if ((bt->fast_permitted & target_mask) != 0) 1264 spi->sync_period = 25; 1265 else if ((bt->sync_permitted & target_mask) != 0) 1266 spi->sync_period = 50; 1267 else 1268 spi->sync_period = 0; 1269 1270 if (spi->sync_period != 0) 1271 spi->sync_offset = 15; 1272 1273 spi->valid |= CTS_SPI_VALID_SYNC_RATE; 1274 spi->valid |= CTS_SPI_VALID_SYNC_OFFSET; 1275 1276 spi->valid |= CTS_SPI_VALID_BUS_WIDTH; 1277 if ((bt->wide_permitted & target_mask) != 0) 1278 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 1279 else 1280 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1281 1282 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 1283 scsi->valid = CTS_SCSI_VALID_TQ; 1284 spi->valid |= CTS_SPI_VALID_DISC; 1285 } else 1286 scsi->valid = 0; 1287 } else { 1288 btfetchtransinfo(bt, cts); 1289 } 1290 1291 ccb->ccb_h.status = CAM_REQ_CMP; 1292 xpt_done(ccb); 1293 break; 1294 } 1295 case XPT_CALC_GEOMETRY: 1296 { 1297 struct ccb_calc_geometry *ccg; 1298 u_int32_t size_mb; 1299 u_int32_t secs_per_cylinder; 1300 1301 ccg = &ccb->ccg; 1302 size_mb = ccg->volume_size 1303 / ((1024L * 1024L) / ccg->block_size); 1304 1305 if (size_mb >= 1024 && (bt->extended_trans != 0)) { 1306 if (size_mb >= 2048) { 1307 ccg->heads = 255; 1308 ccg->secs_per_track = 63; 1309 } else { 1310 ccg->heads = 128; 1311 ccg->secs_per_track = 32; 1312 } 1313 } else { 1314 ccg->heads = 64; 1315 ccg->secs_per_track = 32; 1316 } 1317 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 1318 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 1319 ccb->ccb_h.status = CAM_REQ_CMP; 1320 xpt_done(ccb); 1321 break; 1322 } 1323 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 1324 { 1325 btreset(bt, /*hardreset*/TRUE); 1326 ccb->ccb_h.status = CAM_REQ_CMP; 1327 xpt_done(ccb); 1328 break; 1329 } 1330 case XPT_TERM_IO: /* Terminate the I/O process */ 1331 /* XXX Implement */ 1332 ccb->ccb_h.status = CAM_REQ_INVALID; 1333 xpt_done(ccb); 1334 break; 1335 case XPT_PATH_INQ: /* Path routing inquiry */ 1336 { 1337 struct ccb_pathinq *cpi = &ccb->cpi; 1338 1339 cpi->version_num = 1; /* XXX??? */ 1340 cpi->hba_inquiry = PI_SDTR_ABLE; 1341 if (bt->tag_capable != 0) 1342 cpi->hba_inquiry |= PI_TAG_ABLE; 1343 if (bt->wide_bus != 0) 1344 cpi->hba_inquiry |= PI_WIDE_16; 1345 cpi->target_sprt = 0; 1346 cpi->hba_misc = 0; 1347 cpi->hba_eng_cnt = 0; 1348 cpi->max_target = bt->wide_bus ? 15 : 7; 1349 cpi->max_lun = 7; 1350 cpi->initiator_id = bt->scsi_id; 1351 cpi->bus_id = cam_sim_bus(sim); 1352 cpi->base_transfer_speed = 3300; 1353 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 1354 strlcpy(cpi->hba_vid, "BusLogic", HBA_IDLEN); 1355 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 1356 cpi->unit_number = cam_sim_unit(sim); 1357 cpi->ccb_h.status = CAM_REQ_CMP; 1358 cpi->transport = XPORT_SPI; 1359 cpi->transport_version = 2; 1360 cpi->protocol = PROTO_SCSI; 1361 cpi->protocol_version = SCSI_REV_2; 1362 xpt_done(ccb); 1363 break; 1364 } 1365 default: 1366 ccb->ccb_h.status = CAM_REQ_INVALID; 1367 xpt_done(ccb); 1368 break; 1369 } 1370 } 1371 1372 static void 1373 btexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1374 { 1375 struct bt_ccb *bccb; 1376 union ccb *ccb; 1377 struct bt_softc *bt; 1378 1379 bccb = (struct bt_ccb *)arg; 1380 ccb = bccb->ccb; 1381 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 1382 1383 if (error != 0) { 1384 if (error != EFBIG) 1385 device_printf(bt->dev, 1386 "Unexepected error 0x%x returned from " 1387 "bus_dmamap_load\n", error); 1388 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1389 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1390 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1391 } 1392 btfreeccb(bt, bccb); 1393 xpt_done(ccb); 1394 return; 1395 } 1396 1397 if (nseg != 0) { 1398 bt_sg_t *sg; 1399 bus_dma_segment_t *end_seg; 1400 bus_dmasync_op_t op; 1401 1402 end_seg = dm_segs + nseg; 1403 1404 /* Copy the segments into our SG list */ 1405 sg = bccb->sg_list; 1406 while (dm_segs < end_seg) { 1407 sg->len = dm_segs->ds_len; 1408 sg->addr = dm_segs->ds_addr; 1409 sg++; 1410 dm_segs++; 1411 } 1412 1413 if (nseg > 1) { 1414 bccb->hccb.opcode = INITIATOR_SG_CCB_WRESID; 1415 bccb->hccb.data_len = sizeof(bt_sg_t) * nseg; 1416 bccb->hccb.data_addr = bccb->sg_list_phys; 1417 } else { 1418 bccb->hccb.data_len = bccb->sg_list->len; 1419 bccb->hccb.data_addr = bccb->sg_list->addr; 1420 } 1421 1422 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1423 op = BUS_DMASYNC_PREREAD; 1424 else 1425 op = BUS_DMASYNC_PREWRITE; 1426 1427 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1428 1429 } else { 1430 bccb->hccb.opcode = INITIATOR_CCB; 1431 bccb->hccb.data_len = 0; 1432 bccb->hccb.data_addr = 0; 1433 } 1434 1435 /* 1436 * Last time we need to check if this CCB needs to 1437 * be aborted. 1438 */ 1439 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1440 if (nseg != 0) 1441 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1442 btfreeccb(bt, bccb); 1443 xpt_done(ccb); 1444 return; 1445 } 1446 1447 bccb->flags = BCCB_ACTIVE; 1448 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1449 LIST_INSERT_HEAD(&bt->pending_ccbs, &ccb->ccb_h, sim_links.le); 1450 1451 callout_reset_sbt(&bccb->timer, SBT_1MS * ccb->ccb_h.timeout, 0, 1452 bttimeout, bccb, 0); 1453 1454 /* Tell the adapter about this command */ 1455 bt->cur_outbox->ccb_addr = btccbvtop(bt, bccb); 1456 if (bt->cur_outbox->action_code != BMBO_FREE) { 1457 /* 1458 * We should never encounter a busy mailbox. 1459 * If we do, warn the user, and treat it as 1460 * a resource shortage. If the controller is 1461 * hung, one of the pending transactions will 1462 * timeout causing us to start recovery operations. 1463 */ 1464 device_printf(bt->dev, 1465 "Encountered busy mailbox with %d out of %d " 1466 "commands active!!!\n", bt->active_ccbs, 1467 bt->max_ccbs); 1468 callout_stop(&bccb->timer); 1469 if (nseg != 0) 1470 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1471 btfreeccb(bt, bccb); 1472 bt->resource_shortage = TRUE; 1473 xpt_freeze_simq(bt->sim, /*count*/1); 1474 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1475 xpt_done(ccb); 1476 return; 1477 } 1478 bt->cur_outbox->action_code = BMBO_START; 1479 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 1480 btnextoutbox(bt); 1481 } 1482 1483 void 1484 bt_intr(void *arg) 1485 { 1486 struct bt_softc *bt; 1487 1488 bt = arg; 1489 mtx_lock(&bt->lock); 1490 bt_intr_locked(bt); 1491 mtx_unlock(&bt->lock); 1492 } 1493 1494 void 1495 bt_intr_locked(struct bt_softc *bt) 1496 { 1497 u_int intstat; 1498 1499 while (((intstat = bt_inb(bt, INTSTAT_REG)) & INTR_PENDING) != 0) { 1500 1501 if ((intstat & CMD_COMPLETE) != 0) { 1502 bt->latched_status = bt_inb(bt, STATUS_REG); 1503 bt->command_cmp = TRUE; 1504 } 1505 1506 bt_outb(bt, CONTROL_REG, RESET_INTR); 1507 1508 if ((intstat & IMB_LOADED) != 0) { 1509 while (bt->cur_inbox->comp_code != BMBI_FREE) { 1510 btdone(bt, 1511 btccbptov(bt, bt->cur_inbox->ccb_addr), 1512 bt->cur_inbox->comp_code); 1513 bt->cur_inbox->comp_code = BMBI_FREE; 1514 btnextinbox(bt); 1515 } 1516 } 1517 1518 if ((intstat & SCSI_BUS_RESET) != 0) { 1519 btreset(bt, /*hardreset*/FALSE); 1520 } 1521 } 1522 } 1523 1524 static void 1525 btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code) 1526 { 1527 union ccb *ccb; 1528 struct ccb_scsiio *csio; 1529 1530 ccb = bccb->ccb; 1531 csio = &bccb->ccb->csio; 1532 1533 if ((bccb->flags & BCCB_ACTIVE) == 0) { 1534 device_printf(bt->dev, 1535 "btdone - Attempt to free non-active BCCB %p\n", 1536 (void *)bccb); 1537 return; 1538 } 1539 1540 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1541 bus_dmasync_op_t op; 1542 1543 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1544 op = BUS_DMASYNC_POSTREAD; 1545 else 1546 op = BUS_DMASYNC_POSTWRITE; 1547 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1548 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1549 } 1550 1551 if (bccb == bt->recovery_bccb) { 1552 /* 1553 * The recovery BCCB does not have a CCB associated 1554 * with it, so short circuit the normal error handling. 1555 * We now traverse our list of pending CCBs and process 1556 * any that were terminated by the recovery CCBs action. 1557 * We also reinstate timeouts for all remaining, pending, 1558 * CCBs. 1559 */ 1560 struct cam_path *path; 1561 struct ccb_hdr *ccb_h; 1562 cam_status error; 1563 1564 /* Notify all clients that a BDR occurred */ 1565 error = xpt_create_path(&path, /*periph*/NULL, 1566 cam_sim_path(bt->sim), 1567 bccb->hccb.target_id, 1568 CAM_LUN_WILDCARD); 1569 1570 if (error == CAM_REQ_CMP) { 1571 xpt_async(AC_SENT_BDR, path, NULL); 1572 xpt_free_path(path); 1573 } 1574 1575 ccb_h = LIST_FIRST(&bt->pending_ccbs); 1576 while (ccb_h != NULL) { 1577 struct bt_ccb *pending_bccb; 1578 1579 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1580 if (pending_bccb->hccb.target_id 1581 == bccb->hccb.target_id) { 1582 pending_bccb->hccb.btstat = BTSTAT_HA_BDR; 1583 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1584 btdone(bt, pending_bccb, BMBI_ERROR); 1585 } else { 1586 callout_reset_sbt(&pending_bccb->timer, 1587 SBT_1MS * ccb_h->timeout, 0, bttimeout, 1588 pending_bccb, 0); 1589 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1590 } 1591 } 1592 device_printf(bt->dev, "No longer in timeout\n"); 1593 return; 1594 } 1595 1596 callout_stop(&bccb->timer); 1597 1598 switch (comp_code) { 1599 case BMBI_FREE: 1600 device_printf(bt->dev, 1601 "btdone - CCB completed with free status!\n"); 1602 break; 1603 case BMBI_NOT_FOUND: 1604 device_printf(bt->dev, 1605 "btdone - CCB Abort failed to find CCB\n"); 1606 break; 1607 case BMBI_ABORT: 1608 case BMBI_ERROR: 1609 if (bootverbose) { 1610 printf("bt: ccb %p - error %x occurred. " 1611 "btstat = %x, sdstat = %x\n", 1612 (void *)bccb, comp_code, bccb->hccb.btstat, 1613 bccb->hccb.sdstat); 1614 } 1615 /* An error occurred */ 1616 switch(bccb->hccb.btstat) { 1617 case BTSTAT_DATARUN_ERROR: 1618 if (bccb->hccb.data_len == 0) { 1619 /* 1620 * At least firmware 4.22, does this 1621 * for a QUEUE FULL condition. 1622 */ 1623 bccb->hccb.sdstat = SCSI_STATUS_QUEUE_FULL; 1624 } else if (bccb->hccb.data_len < 0) { 1625 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1626 break; 1627 } 1628 /* FALLTHROUGH */ 1629 case BTSTAT_NOERROR: 1630 case BTSTAT_LINKED_CMD_COMPLETE: 1631 case BTSTAT_LINKED_CMD_FLAG_COMPLETE: 1632 case BTSTAT_DATAUNDERUN_ERROR: 1633 1634 csio->scsi_status = bccb->hccb.sdstat; 1635 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1636 switch(csio->scsi_status) { 1637 case SCSI_STATUS_CHECK_COND: 1638 case SCSI_STATUS_CMD_TERMINATED: 1639 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1640 /* Bounce sense back if necessary */ 1641 if (bt->sense_buffers != NULL) { 1642 csio->sense_data = 1643 *btsensevaddr(bt, bccb); 1644 } 1645 break; 1646 default: 1647 break; 1648 case SCSI_STATUS_OK: 1649 csio->ccb_h.status = CAM_REQ_CMP; 1650 break; 1651 } 1652 csio->resid = bccb->hccb.data_len; 1653 break; 1654 case BTSTAT_SELTIMEOUT: 1655 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1656 break; 1657 case BTSTAT_UNEXPECTED_BUSFREE: 1658 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1659 break; 1660 case BTSTAT_INVALID_PHASE: 1661 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1662 break; 1663 case BTSTAT_INVALID_ACTION_CODE: 1664 panic("%s: Inavlid Action code", bt_name(bt)); 1665 break; 1666 case BTSTAT_INVALID_OPCODE: 1667 panic("%s: Inavlid CCB Opcode code", bt_name(bt)); 1668 break; 1669 case BTSTAT_LINKED_CCB_LUN_MISMATCH: 1670 /* We don't even support linked commands... */ 1671 panic("%s: Linked CCB Lun Mismatch", bt_name(bt)); 1672 break; 1673 case BTSTAT_INVALID_CCB_OR_SG_PARAM: 1674 panic("%s: Invalid CCB or SG list", bt_name(bt)); 1675 break; 1676 case BTSTAT_AUTOSENSE_FAILED: 1677 csio->ccb_h.status = CAM_AUTOSENSE_FAIL; 1678 break; 1679 case BTSTAT_TAGGED_MSG_REJECTED: 1680 { 1681 struct ccb_trans_settings neg; 1682 struct ccb_trans_settings_scsi *scsi = 1683 &neg.proto_specific.scsi; 1684 1685 neg.protocol = PROTO_SCSI; 1686 neg.protocol_version = SCSI_REV_2; 1687 neg.transport = XPORT_SPI; 1688 neg.transport_version = 2; 1689 scsi->valid = CTS_SCSI_VALID_TQ; 1690 scsi->flags = 0; 1691 xpt_print_path(csio->ccb_h.path); 1692 printf("refuses tagged commands. Performing " 1693 "non-tagged I/O\n"); 1694 xpt_setup_ccb(&neg.ccb_h, csio->ccb_h.path, 1695 /*priority*/1); 1696 xpt_async(AC_TRANSFER_NEG, csio->ccb_h.path, &neg); 1697 bt->tags_permitted &= ~(0x01 << csio->ccb_h.target_id); 1698 csio->ccb_h.status = CAM_MSG_REJECT_REC; 1699 break; 1700 } 1701 case BTSTAT_UNSUPPORTED_MSG_RECEIVED: 1702 /* 1703 * XXX You would think that this is 1704 * a recoverable error... Hmmm. 1705 */ 1706 csio->ccb_h.status = CAM_REQ_CMP_ERR; 1707 break; 1708 case BTSTAT_HA_SOFTWARE_ERROR: 1709 case BTSTAT_HA_WATCHDOG_ERROR: 1710 case BTSTAT_HARDWARE_FAILURE: 1711 /* Hardware reset ??? Can we recover ??? */ 1712 csio->ccb_h.status = CAM_NO_HBA; 1713 break; 1714 case BTSTAT_TARGET_IGNORED_ATN: 1715 case BTSTAT_OTHER_SCSI_BUS_RESET: 1716 case BTSTAT_HA_SCSI_BUS_RESET: 1717 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1718 != CAM_CMD_TIMEOUT) 1719 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1720 break; 1721 case BTSTAT_HA_BDR: 1722 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) 1723 csio->ccb_h.status = CAM_BDR_SENT; 1724 else 1725 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1726 break; 1727 case BTSTAT_INVALID_RECONNECT: 1728 case BTSTAT_ABORT_QUEUE_GENERATED: 1729 csio->ccb_h.status = CAM_REQ_TERMIO; 1730 break; 1731 case BTSTAT_SCSI_PERROR_DETECTED: 1732 csio->ccb_h.status = CAM_UNCOR_PARITY; 1733 break; 1734 } 1735 if (csio->ccb_h.status != CAM_REQ_CMP) { 1736 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1737 csio->ccb_h.status |= CAM_DEV_QFRZN; 1738 } 1739 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1740 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1741 btfreeccb(bt, bccb); 1742 xpt_done(ccb); 1743 break; 1744 case BMBI_OK: 1745 /* All completed without incident */ 1746 ccb->ccb_h.status |= CAM_REQ_CMP; 1747 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1748 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1749 btfreeccb(bt, bccb); 1750 xpt_done(ccb); 1751 break; 1752 } 1753 } 1754 1755 static int 1756 btreset(struct bt_softc* bt, int hard_reset) 1757 { 1758 struct ccb_hdr *ccb_h; 1759 u_int status; 1760 u_int timeout; 1761 u_int8_t reset_type; 1762 1763 if (hard_reset != 0) 1764 reset_type = HARD_RESET; 1765 else 1766 reset_type = SOFT_RESET; 1767 bt_outb(bt, CONTROL_REG, reset_type); 1768 1769 /* Wait 5sec. for Diagnostic start */ 1770 timeout = 5 * 10000; 1771 while (--timeout) { 1772 status = bt_inb(bt, STATUS_REG); 1773 if ((status & DIAG_ACTIVE) != 0) 1774 break; 1775 DELAY(100); 1776 } 1777 if (timeout == 0) { 1778 if (bootverbose) 1779 device_printf(bt->dev, 1780 "btreset - Diagnostic Active failed to " 1781 "assert. status = 0x%x\n", status); 1782 return (ETIMEDOUT); 1783 } 1784 1785 /* Wait 10sec. for Diagnostic end */ 1786 timeout = 10 * 10000; 1787 while (--timeout) { 1788 status = bt_inb(bt, STATUS_REG); 1789 if ((status & DIAG_ACTIVE) == 0) 1790 break; 1791 DELAY(100); 1792 } 1793 if (timeout == 0) { 1794 panic("%s: btreset - Diagnostic Active failed to drop. " 1795 "status = 0x%x\n", bt_name(bt), status); 1796 return (ETIMEDOUT); 1797 } 1798 1799 /* Wait for the host adapter to become ready or report a failure */ 1800 timeout = 10000; 1801 while (--timeout) { 1802 status = bt_inb(bt, STATUS_REG); 1803 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1804 break; 1805 DELAY(100); 1806 } 1807 if (timeout == 0) { 1808 device_printf(bt->dev, 1809 "btreset - Host adapter failed to come ready. " 1810 "status = 0x%x\n", status); 1811 return (ETIMEDOUT); 1812 } 1813 1814 /* If the diagnostics failed, tell the user */ 1815 if ((status & DIAG_FAIL) != 0 1816 || (status & HA_READY) == 0) { 1817 device_printf(bt->dev, 1818 "btreset - Adapter failed diagnostics\n"); 1819 1820 if ((status & DATAIN_REG_READY) != 0) 1821 device_printf(bt->dev, 1822 "btreset - Host Adapter Error code = 0x%x\n", 1823 bt_inb(bt, DATAIN_REG)); 1824 return (ENXIO); 1825 } 1826 1827 /* If we've allocated mailboxes, initialize them */ 1828 if (bt->init_level > 4) 1829 btinitmboxes(bt); 1830 1831 /* If we've attached to the XPT, tell it about the event */ 1832 if (bt->path != NULL) 1833 xpt_async(AC_BUS_RESET, bt->path, NULL); 1834 1835 /* 1836 * Perform completion processing for all outstanding CCBs. 1837 */ 1838 while ((ccb_h = LIST_FIRST(&bt->pending_ccbs)) != NULL) { 1839 struct bt_ccb *pending_bccb; 1840 1841 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1842 pending_bccb->hccb.btstat = BTSTAT_HA_SCSI_BUS_RESET; 1843 btdone(bt, pending_bccb, BMBI_ERROR); 1844 } 1845 1846 return (0); 1847 } 1848 1849 /* 1850 * Send a command to the adapter. 1851 */ 1852 int 1853 bt_cmd(struct bt_softc *bt, bt_op_t opcode, u_int8_t *params, u_int param_len, 1854 u_int8_t *reply_data, u_int reply_len, u_int cmd_timeout) 1855 { 1856 u_int timeout; 1857 u_int status; 1858 u_int saved_status; 1859 u_int intstat; 1860 u_int reply_buf_size; 1861 int cmd_complete; 1862 int error; 1863 1864 /* No data returned to start */ 1865 reply_buf_size = reply_len; 1866 reply_len = 0; 1867 intstat = 0; 1868 cmd_complete = 0; 1869 saved_status = 0; 1870 error = 0; 1871 1872 bt->command_cmp = 0; 1873 /* 1874 * Wait up to 10 sec. for the adapter to become 1875 * ready to accept commands. 1876 */ 1877 timeout = 100000; 1878 while (--timeout) { 1879 status = bt_inb(bt, STATUS_REG); 1880 if ((status & HA_READY) != 0 1881 && (status & CMD_REG_BUSY) == 0) 1882 break; 1883 /* 1884 * Throw away any pending data which may be 1885 * left over from earlier commands that we 1886 * timedout on. 1887 */ 1888 if ((status & DATAIN_REG_READY) != 0) 1889 (void)bt_inb(bt, DATAIN_REG); 1890 DELAY(100); 1891 } 1892 if (timeout == 0) { 1893 device_printf(bt->dev, 1894 "bt_cmd: Timeout waiting for adapter ready, " 1895 "status = 0x%x\n", status); 1896 return (ETIMEDOUT); 1897 } 1898 1899 /* 1900 * Send the opcode followed by any necessary parameter bytes. 1901 */ 1902 bt_outb(bt, COMMAND_REG, opcode); 1903 1904 /* 1905 * Wait for up to 1sec for each byte of the 1906 * parameter list sent to be sent. 1907 */ 1908 timeout = 10000; 1909 while (param_len && --timeout) { 1910 DELAY(100); 1911 status = bt_inb(bt, STATUS_REG); 1912 intstat = bt_inb(bt, INTSTAT_REG); 1913 1914 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1915 == (INTR_PENDING|CMD_COMPLETE)) { 1916 saved_status = status; 1917 cmd_complete = 1; 1918 break; 1919 } 1920 if (bt->command_cmp != 0) { 1921 saved_status = bt->latched_status; 1922 cmd_complete = 1; 1923 break; 1924 } 1925 if ((status & DATAIN_REG_READY) != 0) 1926 break; 1927 if ((status & CMD_REG_BUSY) == 0) { 1928 bt_outb(bt, COMMAND_REG, *params++); 1929 param_len--; 1930 timeout = 10000; 1931 } 1932 } 1933 if (timeout == 0) { 1934 device_printf(bt->dev, "bt_cmd: Timeout sending parameters, " 1935 "status = 0x%x\n", status); 1936 cmd_complete = 1; 1937 saved_status = status; 1938 error = ETIMEDOUT; 1939 } 1940 1941 /* 1942 * Wait for the command to complete. 1943 */ 1944 while (cmd_complete == 0 && --cmd_timeout) { 1945 1946 status = bt_inb(bt, STATUS_REG); 1947 intstat = bt_inb(bt, INTSTAT_REG); 1948 /* 1949 * It may be that this command was issued with 1950 * controller interrupts disabled. We'll never 1951 * get to our command if an incoming mailbox 1952 * interrupt is pending, so take care of completed 1953 * mailbox commands by calling our interrupt handler. 1954 */ 1955 if ((intstat & (INTR_PENDING|IMB_LOADED)) 1956 == (INTR_PENDING|IMB_LOADED)) 1957 bt_intr_locked(bt); 1958 1959 if (bt->command_cmp != 0) { 1960 /* 1961 * Our interrupt handler saw CMD_COMPLETE 1962 * status before we did. 1963 */ 1964 cmd_complete = 1; 1965 saved_status = bt->latched_status; 1966 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1967 == (INTR_PENDING|CMD_COMPLETE)) { 1968 /* 1969 * Our poll (in case interrupts are blocked) 1970 * saw the CMD_COMPLETE interrupt. 1971 */ 1972 cmd_complete = 1; 1973 saved_status = status; 1974 } else if (opcode == BOP_MODIFY_IO_ADDR 1975 && (status & CMD_REG_BUSY) == 0) { 1976 /* 1977 * The BOP_MODIFY_IO_ADDR does not issue a CMD_COMPLETE, 1978 * but it should update the status register. So, we 1979 * consider this command complete when the CMD_REG_BUSY 1980 * status clears. 1981 */ 1982 saved_status = status; 1983 cmd_complete = 1; 1984 } else if ((status & DATAIN_REG_READY) != 0) { 1985 u_int8_t data; 1986 1987 data = bt_inb(bt, DATAIN_REG); 1988 if (reply_len < reply_buf_size) { 1989 *reply_data++ = data; 1990 } else { 1991 device_printf(bt->dev, 1992 "bt_cmd - Discarded reply data byte " 1993 "for opcode 0x%x\n", opcode); 1994 } 1995 /* 1996 * Reset timeout to ensure at least a second 1997 * between response bytes. 1998 */ 1999 cmd_timeout = MAX(cmd_timeout, 10000); 2000 reply_len++; 2001 2002 } else if ((opcode == BOP_FETCH_LRAM) 2003 && (status & HA_READY) != 0) { 2004 saved_status = status; 2005 cmd_complete = 1; 2006 } 2007 DELAY(100); 2008 } 2009 if (cmd_timeout == 0) { 2010 device_printf(bt->dev, 2011 "bt_cmd: Timeout waiting for command (%x) " 2012 "to complete.\n", opcode); 2013 device_printf(bt->dev, "status = 0x%x, intstat = 0x%x, " 2014 "rlen %d\n", status, intstat, reply_len); 2015 error = (ETIMEDOUT); 2016 } 2017 2018 /* 2019 * Clear any pending interrupts. 2020 */ 2021 bt_intr_locked(bt); 2022 2023 if (error != 0) 2024 return (error); 2025 2026 /* 2027 * If the command was rejected by the controller, tell the caller. 2028 */ 2029 if ((saved_status & CMD_INVALID) != 0) { 2030 /* 2031 * Some early adapters may not recover properly from 2032 * an invalid command. If it appears that the controller 2033 * has wedged (i.e. status was not cleared by our interrupt 2034 * reset above), perform a soft reset. 2035 */ 2036 if (bootverbose) 2037 device_printf(bt->dev, "Invalid Command 0x%x\n", 2038 opcode); 2039 DELAY(1000); 2040 status = bt_inb(bt, STATUS_REG); 2041 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 2042 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 2043 || (status & (HA_READY|INIT_REQUIRED)) 2044 != (HA_READY|INIT_REQUIRED)) { 2045 btreset(bt, /*hard_reset*/FALSE); 2046 } 2047 return (EINVAL); 2048 } 2049 2050 if (param_len > 0) { 2051 /* The controller did not accept the full argument list */ 2052 return (E2BIG); 2053 } 2054 2055 if (reply_len != reply_buf_size) { 2056 /* Too much or too little data received */ 2057 return (EMSGSIZE); 2058 } 2059 2060 /* We were successful */ 2061 return (0); 2062 } 2063 2064 static int 2065 btinitmboxes(struct bt_softc *bt) { 2066 init_32b_mbox_params_t init_mbox; 2067 int error; 2068 2069 bzero(bt->in_boxes, sizeof(bt_mbox_in_t) * bt->num_boxes); 2070 bzero(bt->out_boxes, sizeof(bt_mbox_out_t) * bt->num_boxes); 2071 bt->cur_inbox = bt->in_boxes; 2072 bt->last_inbox = bt->in_boxes + bt->num_boxes - 1; 2073 bt->cur_outbox = bt->out_boxes; 2074 bt->last_outbox = bt->out_boxes + bt->num_boxes - 1; 2075 2076 /* Tell the adapter about them */ 2077 init_mbox.num_boxes = bt->num_boxes; 2078 init_mbox.base_addr[0] = bt->mailbox_physbase & 0xFF; 2079 init_mbox.base_addr[1] = (bt->mailbox_physbase >> 8) & 0xFF; 2080 init_mbox.base_addr[2] = (bt->mailbox_physbase >> 16) & 0xFF; 2081 init_mbox.base_addr[3] = (bt->mailbox_physbase >> 24) & 0xFF; 2082 error = bt_cmd(bt, BOP_INITIALIZE_32BMBOX, (u_int8_t *)&init_mbox, 2083 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 2084 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 2085 2086 if (error != 0) 2087 printf("btinitmboxes: Initialization command failed\n"); 2088 else if (bt->strict_rr != 0) { 2089 /* 2090 * If the controller supports 2091 * strict round robin mode, 2092 * enable it 2093 */ 2094 u_int8_t param; 2095 2096 param = 0; 2097 error = bt_cmd(bt, BOP_ENABLE_STRICT_RR, ¶m, 1, 2098 /*reply_buf*/NULL, /*reply_len*/0, 2099 DEFAULT_CMD_TIMEOUT); 2100 2101 if (error != 0) { 2102 printf("btinitmboxes: Unable to enable strict RR\n"); 2103 error = 0; 2104 } else if (bootverbose) { 2105 device_printf(bt->dev, 2106 "Using Strict Round Robin Mailbox Mode\n"); 2107 } 2108 } 2109 2110 return (error); 2111 } 2112 2113 /* 2114 * Update the XPT's idea of the negotiated transfer 2115 * parameters for a particular target. 2116 */ 2117 static void 2118 btfetchtransinfo(struct bt_softc *bt, struct ccb_trans_settings *cts) 2119 { 2120 setup_data_t setup_info; 2121 u_int target; 2122 u_int targ_offset; 2123 u_int targ_mask; 2124 u_int sync_period; 2125 u_int sync_offset; 2126 u_int bus_width; 2127 int error; 2128 u_int8_t param; 2129 targ_syncinfo_t sync_info; 2130 struct ccb_trans_settings_scsi *scsi = 2131 &cts->proto_specific.scsi; 2132 struct ccb_trans_settings_spi *spi = 2133 &cts->xport_specific.spi; 2134 2135 spi->valid = 0; 2136 scsi->valid = 0; 2137 2138 target = cts->ccb_h.target_id; 2139 targ_offset = (target & 0x7); 2140 targ_mask = (0x01 << targ_offset); 2141 2142 /* 2143 * Inquire Setup Information. This command retreives the 2144 * Wide negotiation status for recent adapters as well as 2145 * the sync info for older models. 2146 */ 2147 param = sizeof(setup_info); 2148 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 2149 (u_int8_t*)&setup_info, sizeof(setup_info), 2150 DEFAULT_CMD_TIMEOUT); 2151 2152 if (error != 0) { 2153 device_printf(bt->dev, 2154 "btfetchtransinfo - Inquire Setup Info Failed %x\n", 2155 error); 2156 return; 2157 } 2158 2159 sync_info = (target < 8) ? setup_info.low_syncinfo[targ_offset] 2160 : setup_info.high_syncinfo[targ_offset]; 2161 2162 if (sync_info.sync == 0) 2163 sync_offset = 0; 2164 else 2165 sync_offset = sync_info.offset; 2166 2167 2168 bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2169 if (strcmp(bt->firmware_ver, "5.06L") >= 0) { 2170 u_int wide_active; 2171 2172 wide_active = 2173 (target < 8) ? (setup_info.low_wide_active & targ_mask) 2174 : (setup_info.high_wide_active & targ_mask); 2175 2176 if (wide_active) 2177 bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2178 } else if ((bt->wide_permitted & targ_mask) != 0) { 2179 struct ccb_getdev cgd; 2180 2181 /* 2182 * Prior to rev 5.06L, wide status isn't provided, 2183 * so we "guess" that wide transfers are in effect 2184 * if the user settings allow for wide and the inquiry 2185 * data for the device indicates that it can handle 2186 * wide transfers. 2187 */ 2188 xpt_setup_ccb(&cgd.ccb_h, cts->ccb_h.path, /*priority*/1); 2189 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 2190 xpt_action((union ccb *)&cgd); 2191 if ((cgd.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP 2192 && (cgd.inq_data.flags & SID_WBus16) != 0) 2193 bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2194 } 2195 2196 if (bt->firmware_ver[0] >= '3') { 2197 /* 2198 * For adapters that can do fast or ultra speeds, 2199 * use the more exact Target Sync Information command. 2200 */ 2201 target_sync_info_data_t sync_info; 2202 2203 param = sizeof(sync_info); 2204 error = bt_cmd(bt, BOP_TARG_SYNC_INFO, ¶m, /*paramlen*/1, 2205 (u_int8_t*)&sync_info, sizeof(sync_info), 2206 DEFAULT_CMD_TIMEOUT); 2207 2208 if (error != 0) { 2209 device_printf(bt->dev, 2210 "btfetchtransinfo - Inquire Sync " 2211 "Info Failed 0x%x\n", error); 2212 return; 2213 } 2214 sync_period = sync_info.sync_rate[target] * 100; 2215 } else { 2216 sync_period = 2000 + (500 * sync_info.period); 2217 } 2218 2219 cts->protocol = PROTO_SCSI; 2220 cts->protocol_version = SCSI_REV_2; 2221 cts->transport = XPORT_SPI; 2222 cts->transport_version = 2; 2223 2224 spi->sync_period = sync_period; 2225 spi->valid |= CTS_SPI_VALID_SYNC_RATE; 2226 spi->sync_offset = sync_offset; 2227 spi->valid |= CTS_SPI_VALID_SYNC_OFFSET; 2228 2229 spi->valid |= CTS_SPI_VALID_BUS_WIDTH; 2230 spi->bus_width = bus_width; 2231 2232 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 2233 scsi->valid = CTS_SCSI_VALID_TQ; 2234 spi->valid |= CTS_SPI_VALID_DISC; 2235 } else 2236 scsi->valid = 0; 2237 2238 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 2239 } 2240 2241 static void 2242 btmapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2243 { 2244 struct bt_softc* bt; 2245 2246 bt = (struct bt_softc*)arg; 2247 bt->mailbox_physbase = segs->ds_addr; 2248 } 2249 2250 static void 2251 btmapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2252 { 2253 struct bt_softc* bt; 2254 2255 bt = (struct bt_softc*)arg; 2256 bt->bt_ccb_physbase = segs->ds_addr; 2257 } 2258 2259 static void 2260 btmapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2261 { 2262 2263 struct bt_softc* bt; 2264 2265 bt = (struct bt_softc*)arg; 2266 SLIST_FIRST(&bt->sg_maps)->sg_physaddr = segs->ds_addr; 2267 } 2268 2269 static void 2270 btpoll(struct cam_sim *sim) 2271 { 2272 bt_intr_locked(cam_sim_softc(sim)); 2273 } 2274 2275 void 2276 bttimeout(void *arg) 2277 { 2278 struct bt_ccb *bccb; 2279 union ccb *ccb; 2280 struct bt_softc *bt; 2281 2282 bccb = (struct bt_ccb *)arg; 2283 ccb = bccb->ccb; 2284 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 2285 mtx_assert(&bt->lock, MA_OWNED); 2286 xpt_print_path(ccb->ccb_h.path); 2287 printf("CCB %p - timed out\n", (void *)bccb); 2288 2289 if ((bccb->flags & BCCB_ACTIVE) == 0) { 2290 xpt_print_path(ccb->ccb_h.path); 2291 printf("CCB %p - timed out CCB already completed\n", 2292 (void *)bccb); 2293 return; 2294 } 2295 2296 /* 2297 * In order to simplify the recovery process, we ask the XPT 2298 * layer to halt the queue of new transactions and we traverse 2299 * the list of pending CCBs and remove their timeouts. This 2300 * means that the driver attempts to clear only one error 2301 * condition at a time. In general, timeouts that occur 2302 * close together are related anyway, so there is no benefit 2303 * in attempting to handle errors in parallel. Timeouts will 2304 * be reinstated when the recovery process ends. 2305 */ 2306 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) { 2307 struct ccb_hdr *ccb_h; 2308 2309 if ((bccb->flags & BCCB_RELEASE_SIMQ) == 0) { 2310 xpt_freeze_simq(bt->sim, /*count*/1); 2311 bccb->flags |= BCCB_RELEASE_SIMQ; 2312 } 2313 2314 ccb_h = LIST_FIRST(&bt->pending_ccbs); 2315 while (ccb_h != NULL) { 2316 struct bt_ccb *pending_bccb; 2317 2318 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 2319 callout_stop(&pending_bccb->timer); 2320 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 2321 } 2322 } 2323 2324 if ((bccb->flags & BCCB_DEVICE_RESET) != 0 2325 || bt->cur_outbox->action_code != BMBO_FREE 2326 || ((bccb->hccb.tag_enable == TRUE) 2327 && (bt->firmware_ver[0] < '5'))) { 2328 /* 2329 * Try a full host adapter/SCSI bus reset. 2330 * We do this only if we have already attempted 2331 * to clear the condition with a BDR, or we cannot 2332 * attempt a BDR for lack of mailbox resources 2333 * or because of faulty firmware. It turns out 2334 * that firmware versions prior to 5.xx treat BDRs 2335 * as untagged commands that cannot be sent until 2336 * all outstanding tagged commands have been processed. 2337 * This makes it somewhat difficult to use a BDR to 2338 * clear up a problem with an uncompleted tagged command. 2339 */ 2340 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 2341 btreset(bt, /*hardreset*/TRUE); 2342 device_printf(bt->dev, "No longer in timeout\n"); 2343 } else { 2344 /* 2345 * Send a Bus Device Reset message: 2346 * The target that is holding up the bus may not 2347 * be the same as the one that triggered this timeout 2348 * (different commands have different timeout lengths), 2349 * but we have no way of determining this from our 2350 * timeout handler. Our strategy here is to queue a 2351 * BDR message to the target of the timed out command. 2352 * If this fails, we'll get another timeout 2 seconds 2353 * later which will attempt a bus reset. 2354 */ 2355 bccb->flags |= BCCB_DEVICE_RESET; 2356 callout_reset(&bccb->timer, 2 * hz, bttimeout, bccb); 2357 2358 bt->recovery_bccb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 2359 2360 /* No Data Transfer */ 2361 bt->recovery_bccb->hccb.datain = TRUE; 2362 bt->recovery_bccb->hccb.dataout = TRUE; 2363 bt->recovery_bccb->hccb.btstat = 0; 2364 bt->recovery_bccb->hccb.sdstat = 0; 2365 bt->recovery_bccb->hccb.target_id = ccb->ccb_h.target_id; 2366 2367 /* Tell the adapter about this command */ 2368 bt->cur_outbox->ccb_addr = btccbvtop(bt, bt->recovery_bccb); 2369 bt->cur_outbox->action_code = BMBO_START; 2370 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 2371 btnextoutbox(bt); 2372 } 2373 } 2374 2375 MODULE_VERSION(bt, 1); 2376 MODULE_DEPEND(bt, cam, 1, 1, 1);
Cache object: d68c4738166564e159ddbf766a6aacbc
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