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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_eisa.c BT-74X, BT-75x cards, SDC3222F 7 * sys/dev/buslogic/bt_pci.c BT-946, BT-948, BT-956, BT-958 cards 8 * 9 * Copyright (c) 1998, 1999 Justin T. 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 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD: releng/6.2/sys/dev/buslogic/bt.c 165449 2006-12-21 21:00:52Z mjacob $"); 36 37 /* 38 * Special thanks to Leonard N. Zubkoff for writing such a complete and 39 * well documented Mylex/BusLogic MultiMaster driver for Linux. Support 40 * in this driver for the wide range of MultiMaster controllers and 41 * firmware revisions, with their otherwise undocumented quirks, would not 42 * have been possible without his efforts. 43 */ 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/malloc.h> 48 #include <sys/kernel.h> 49 #include <sys/lock.h> 50 #include <sys/module.h> 51 #include <sys/mutex.h> 52 #include <sys/sysctl.h> 53 #include <sys/bus.h> 54 55 #include <machine/bus.h> 56 #include <sys/rman.h> 57 58 #include <cam/cam.h> 59 #include <cam/cam_ccb.h> 60 #include <cam/cam_sim.h> 61 #include <cam/cam_xpt_sim.h> 62 #include <cam/cam_debug.h> 63 64 #include <cam/scsi/scsi_message.h> 65 66 #include <vm/vm.h> 67 #include <vm/pmap.h> 68 69 #include <dev/buslogic/btreg.h> 70 71 /* MailBox Management functions */ 72 static __inline void btnextinbox(struct bt_softc *bt); 73 static __inline void btnextoutbox(struct bt_softc *bt); 74 75 static __inline void 76 btnextinbox(struct bt_softc *bt) 77 { 78 if (bt->cur_inbox == bt->last_inbox) 79 bt->cur_inbox = bt->in_boxes; 80 else 81 bt->cur_inbox++; 82 } 83 84 static __inline void 85 btnextoutbox(struct bt_softc *bt) 86 { 87 if (bt->cur_outbox == bt->last_outbox) 88 bt->cur_outbox = bt->out_boxes; 89 else 90 bt->cur_outbox++; 91 } 92 93 /* CCB Mangement functions */ 94 static __inline u_int32_t btccbvtop(struct bt_softc *bt, 95 struct bt_ccb *bccb); 96 static __inline struct bt_ccb* btccbptov(struct bt_softc *bt, 97 u_int32_t ccb_addr); 98 static __inline u_int32_t btsensepaddr(struct bt_softc *bt, 99 struct bt_ccb *bccb); 100 static __inline struct scsi_sense_data* btsensevaddr(struct bt_softc *bt, 101 struct bt_ccb *bccb); 102 103 static __inline u_int32_t 104 btccbvtop(struct bt_softc *bt, struct bt_ccb *bccb) 105 { 106 return (bt->bt_ccb_physbase 107 + (u_int32_t)((caddr_t)bccb - (caddr_t)bt->bt_ccb_array)); 108 } 109 110 static __inline struct bt_ccb * 111 btccbptov(struct bt_softc *bt, u_int32_t ccb_addr) 112 { 113 return (bt->bt_ccb_array + 114 ((struct bt_ccb*)(uintptr_t)ccb_addr - (struct bt_ccb*)(uintptr_t)bt->bt_ccb_physbase)); 115 } 116 117 static __inline u_int32_t 118 btsensepaddr(struct bt_softc *bt, struct bt_ccb *bccb) 119 { 120 u_int index; 121 122 index = (u_int)(bccb - bt->bt_ccb_array); 123 return (bt->sense_buffers_physbase 124 + (index * sizeof(struct scsi_sense_data))); 125 } 126 127 static __inline struct scsi_sense_data * 128 btsensevaddr(struct bt_softc *bt, struct bt_ccb *bccb) 129 { 130 u_int index; 131 132 index = (u_int)(bccb - bt->bt_ccb_array); 133 return (bt->sense_buffers + index); 134 } 135 136 static __inline struct bt_ccb* btgetccb(struct bt_softc *bt); 137 static __inline void btfreeccb(struct bt_softc *bt, 138 struct bt_ccb *bccb); 139 static void btallocccbs(struct bt_softc *bt); 140 static bus_dmamap_callback_t btexecuteccb; 141 static void btdone(struct bt_softc *bt, struct bt_ccb *bccb, 142 bt_mbi_comp_code_t comp_code); 143 144 /* Host adapter command functions */ 145 static int btreset(struct bt_softc* bt, int hard_reset); 146 147 /* Initialization functions */ 148 static int btinitmboxes(struct bt_softc *bt); 149 static bus_dmamap_callback_t btmapmboxes; 150 static bus_dmamap_callback_t btmapccbs; 151 static bus_dmamap_callback_t btmapsgs; 152 153 /* Transfer Negotiation Functions */ 154 static void btfetchtransinfo(struct bt_softc *bt, 155 struct ccb_trans_settings *cts); 156 157 /* CAM SIM entry points */ 158 #define ccb_bccb_ptr spriv_ptr0 159 #define ccb_bt_ptr spriv_ptr1 160 static void btaction(struct cam_sim *sim, union ccb *ccb); 161 static void btpoll(struct cam_sim *sim); 162 163 /* Our timeout handler */ 164 timeout_t bttimeout; 165 166 u_long bt_unit = 0; 167 168 /* 169 * XXX 170 * Do our own re-probe protection until a configuration 171 * manager can do it for us. This ensures that we don't 172 * reprobe a card already found by the EISA or PCI probes. 173 */ 174 struct bt_isa_port bt_isa_ports[] = 175 { 176 { 0x130, 0, 4 }, 177 { 0x134, 0, 5 }, 178 { 0x230, 0, 2 }, 179 { 0x234, 0, 3 }, 180 { 0x330, 0, 0 }, 181 { 0x334, 0, 1 } 182 }; 183 184 /* 185 * I/O ports listed in the order enumerated by the 186 * card for certain op codes. 187 */ 188 u_int16_t bt_board_ports[] = 189 { 190 0x330, 191 0x334, 192 0x230, 193 0x234, 194 0x130, 195 0x134 196 }; 197 198 /* Exported functions */ 199 void 200 bt_init_softc(device_t dev, struct resource *port, 201 struct resource *irq, struct resource *drq) 202 { 203 struct bt_softc *bt = device_get_softc(dev); 204 205 SLIST_INIT(&bt->free_bt_ccbs); 206 LIST_INIT(&bt->pending_ccbs); 207 SLIST_INIT(&bt->sg_maps); 208 bt->dev = dev; 209 bt->unit = device_get_unit(dev); 210 bt->port = port; 211 bt->irq = irq; 212 bt->drq = drq; 213 bt->tag = rman_get_bustag(port); 214 bt->bsh = rman_get_bushandle(port); 215 } 216 217 void 218 bt_free_softc(device_t dev) 219 { 220 struct bt_softc *bt = device_get_softc(dev); 221 222 switch (bt->init_level) { 223 default: 224 case 11: 225 bus_dmamap_unload(bt->sense_dmat, bt->sense_dmamap); 226 case 10: 227 bus_dmamem_free(bt->sense_dmat, bt->sense_buffers, 228 bt->sense_dmamap); 229 case 9: 230 bus_dma_tag_destroy(bt->sense_dmat); 231 case 8: 232 { 233 struct sg_map_node *sg_map; 234 235 while ((sg_map = SLIST_FIRST(&bt->sg_maps))!= NULL) { 236 SLIST_REMOVE_HEAD(&bt->sg_maps, links); 237 bus_dmamap_unload(bt->sg_dmat, 238 sg_map->sg_dmamap); 239 bus_dmamem_free(bt->sg_dmat, sg_map->sg_vaddr, 240 sg_map->sg_dmamap); 241 free(sg_map, M_DEVBUF); 242 } 243 bus_dma_tag_destroy(bt->sg_dmat); 244 } 245 case 7: 246 bus_dmamap_unload(bt->ccb_dmat, bt->ccb_dmamap); 247 /* FALLTHROUGH */ 248 case 6: 249 bus_dmamem_free(bt->ccb_dmat, bt->bt_ccb_array, 250 bt->ccb_dmamap); 251 bus_dmamap_destroy(bt->ccb_dmat, bt->ccb_dmamap); 252 /* FALLTHROUGH */ 253 case 5: 254 bus_dma_tag_destroy(bt->ccb_dmat); 255 /* FALLTHROUGH */ 256 case 4: 257 bus_dmamap_unload(bt->mailbox_dmat, bt->mailbox_dmamap); 258 /* FALLTHROUGH */ 259 case 3: 260 bus_dmamem_free(bt->mailbox_dmat, bt->in_boxes, 261 bt->mailbox_dmamap); 262 bus_dmamap_destroy(bt->mailbox_dmat, bt->mailbox_dmamap); 263 /* FALLTHROUGH */ 264 case 2: 265 bus_dma_tag_destroy(bt->buffer_dmat); 266 /* FALLTHROUGH */ 267 case 1: 268 bus_dma_tag_destroy(bt->mailbox_dmat); 269 /* FALLTHROUGH */ 270 case 0: 271 break; 272 } 273 } 274 275 int 276 bt_port_probe(device_t dev, struct bt_probe_info *info) 277 { 278 struct bt_softc *bt = device_get_softc(dev); 279 config_data_t config_data; 280 int error; 281 282 /* See if there is really a card present */ 283 if (bt_probe(dev) || bt_fetch_adapter_info(dev)) 284 return(1); 285 286 /* 287 * Determine our IRQ, and DMA settings and 288 * export them to the configuration system. 289 */ 290 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 291 (u_int8_t*)&config_data, sizeof(config_data), 292 DEFAULT_CMD_TIMEOUT); 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 /* VL/EISA/PCI DMA */ 318 info->drq = -1; 319 } 320 switch (config_data.irq) { 321 case IRQ_9: 322 case IRQ_10: 323 case IRQ_11: 324 case IRQ_12: 325 case IRQ_14: 326 case IRQ_15: 327 info->irq = ffs(config_data.irq) + 8; 328 break; 329 default: 330 printf("bt_port_probe: Invalid IRQ setting %x" 331 "detected for adapter.\n", config_data.irq); 332 return (1); 333 } 334 return (0); 335 } 336 337 /* 338 * Probe the adapter and verify that the card is a BusLogic. 339 */ 340 int 341 bt_probe(device_t dev) 342 { 343 struct bt_softc *bt = device_get_softc(dev); 344 esetup_info_data_t esetup_info; 345 u_int status; 346 u_int intstat; 347 u_int geometry; 348 int error; 349 u_int8_t param; 350 351 /* 352 * See if the three I/O ports look reasonable. 353 * Touch the minimal number of registers in the 354 * failure case. 355 */ 356 status = bt_inb(bt, STATUS_REG); 357 if ((status == 0) 358 || (status & (DIAG_ACTIVE|CMD_REG_BUSY| 359 STATUS_REG_RSVD|CMD_INVALID)) != 0) { 360 if (bootverbose) 361 device_printf(dev, "Failed Status Reg Test - %x\n", 362 status); 363 return (ENXIO); 364 } 365 366 intstat = bt_inb(bt, INTSTAT_REG); 367 if ((intstat & INTSTAT_REG_RSVD) != 0) { 368 device_printf(dev, "Failed Intstat Reg Test\n"); 369 return (ENXIO); 370 } 371 372 geometry = bt_inb(bt, GEOMETRY_REG); 373 if (geometry == 0xFF) { 374 if (bootverbose) 375 device_printf(dev, "Failed Geometry Reg Test\n"); 376 return (ENXIO); 377 } 378 379 /* 380 * Looking good so far. Final test is to reset the 381 * adapter and attempt to fetch the extended setup 382 * information. This should filter out all 1542 cards. 383 */ 384 if ((error = btreset(bt, /*hard_reset*/TRUE)) != 0) { 385 if (bootverbose) 386 device_printf(dev, "Failed Reset\n"); 387 return (ENXIO); 388 } 389 390 param = sizeof(esetup_info); 391 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, ¶m, /*parmlen*/1, 392 (u_int8_t*)&esetup_info, sizeof(esetup_info), 393 DEFAULT_CMD_TIMEOUT); 394 if (error != 0) { 395 return (ENXIO); 396 } 397 398 return (0); 399 } 400 401 /* 402 * Pull the boards setup information and record it in our softc. 403 */ 404 int 405 bt_fetch_adapter_info(device_t dev) 406 { 407 struct bt_softc *bt = device_get_softc(dev); 408 board_id_data_t board_id; 409 esetup_info_data_t esetup_info; 410 config_data_t config_data; 411 int error; 412 u_int8_t length_param; 413 414 /* First record the firmware version */ 415 error = bt_cmd(bt, BOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0, 416 (u_int8_t*)&board_id, sizeof(board_id), 417 DEFAULT_CMD_TIMEOUT); 418 if (error != 0) { 419 device_printf(dev, "bt_fetch_adapter_info - Failed Get Board Info\n"); 420 return (error); 421 } 422 bt->firmware_ver[0] = board_id.firmware_rev_major; 423 bt->firmware_ver[1] = '.'; 424 bt->firmware_ver[2] = board_id.firmware_rev_minor; 425 bt->firmware_ver[3] = '\0'; 426 427 /* 428 * Depending on the firmware major and minor version, 429 * we may be able to fetch additional minor version info. 430 */ 431 if (bt->firmware_ver[0] > '') { 432 433 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_3DIG, NULL, /*parmlen*/0, 434 (u_int8_t*)&bt->firmware_ver[3], 1, 435 DEFAULT_CMD_TIMEOUT); 436 if (error != 0) { 437 device_printf(dev, 438 "bt_fetch_adapter_info - Failed Get " 439 "Firmware 3rd Digit\n"); 440 return (error); 441 } 442 if (bt->firmware_ver[3] == ' ') 443 bt->firmware_ver[3] = '\0'; 444 bt->firmware_ver[4] = '\0'; 445 } 446 447 if (strcmp(bt->firmware_ver, "3.3") >= 0) { 448 449 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_4DIG, NULL, /*parmlen*/0, 450 (u_int8_t*)&bt->firmware_ver[4], 1, 451 DEFAULT_CMD_TIMEOUT); 452 if (error != 0) { 453 device_printf(dev, 454 "bt_fetch_adapter_info - Failed Get " 455 "Firmware 4th Digit\n"); 456 return (error); 457 } 458 if (bt->firmware_ver[4] == ' ') 459 bt->firmware_ver[4] = '\0'; 460 bt->firmware_ver[5] = '\0'; 461 } 462 463 /* 464 * Some boards do not handle the "recently documented" 465 * Inquire Board Model Number command correctly or do not give 466 * exact information. Use the Firmware and Extended Setup 467 * information in these cases to come up with the right answer. 468 * The major firmware revision number indicates: 469 * 470 * 5.xx BusLogic "W" Series Host Adapters: 471 * BT-948/958/958D 472 * 4.xx BusLogic "C" Series Host Adapters: 473 * BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF 474 * 3.xx BusLogic "S" Series Host Adapters: 475 * BT-747S/747D/757S/757D/445S/545S/542D 476 * BT-542B/742A (revision H) 477 * 2.xx BusLogic "A" Series Host Adapters: 478 * BT-542B/742A (revision G and below) 479 * 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter 480 */ 481 length_param = sizeof(esetup_info); 482 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, &length_param, /*parmlen*/1, 483 (u_int8_t*)&esetup_info, sizeof(esetup_info), 484 DEFAULT_CMD_TIMEOUT); 485 if (error != 0) { 486 return (error); 487 } 488 489 bt->bios_addr = esetup_info.bios_addr << 12; 490 491 bt->mailbox_addrlimit = BUS_SPACE_MAXADDR; 492 if (esetup_info.bus_type == 'A' 493 && bt->firmware_ver[0] == '2') { 494 snprintf(bt->model, sizeof(bt->model), "542B"); 495 } else if (esetup_info.bus_type == 'E' 496 && bt->firmware_ver[0] == '2') { 497 498 /* 499 * The 742A seems to object if its mailboxes are 500 * allocated above the 16MB mark. 501 */ 502 bt->mailbox_addrlimit = BUS_SPACE_MAXADDR_24BIT; 503 snprintf(bt->model, sizeof(bt->model), "742A"); 504 } else if (esetup_info.bus_type == 'E' 505 && bt->firmware_ver[0] == '') { 506 /* AMI FastDisk EISA Series 441 0.x */ 507 snprintf(bt->model, sizeof(bt->model), "747A"); 508 } else { 509 ha_model_data_t model_data; 510 int i; 511 512 length_param = sizeof(model_data); 513 error = bt_cmd(bt, BOP_INQUIRE_MODEL, &length_param, 1, 514 (u_int8_t*)&model_data, sizeof(model_data), 515 DEFAULT_CMD_TIMEOUT); 516 if (error != 0) { 517 device_printf(dev, 518 "bt_fetch_adapter_info - Failed Inquire " 519 "Model Number\n"); 520 return (error); 521 } 522 for (i = 0; i < sizeof(model_data.ascii_model); i++) { 523 bt->model[i] = model_data.ascii_model[i]; 524 if (bt->model[i] == ' ') 525 break; 526 } 527 bt->model[i] = '\0'; 528 } 529 530 bt->level_trigger_ints = esetup_info.level_trigger_ints ? 1 : 0; 531 532 /* SG element limits */ 533 bt->max_sg = esetup_info.max_sg; 534 535 /* Set feature flags */ 536 bt->wide_bus = esetup_info.wide_bus; 537 bt->diff_bus = esetup_info.diff_bus; 538 bt->ultra_scsi = esetup_info.ultra_scsi; 539 540 if ((bt->firmware_ver[0] == '5') 541 || (bt->firmware_ver[0] == '4' && bt->wide_bus)) 542 bt->extended_lun = TRUE; 543 544 bt->strict_rr = (strcmp(bt->firmware_ver, "3.31") >= 0); 545 546 bt->extended_trans = 547 ((bt_inb(bt, GEOMETRY_REG) & EXTENDED_TRANSLATION) != 0); 548 549 /* 550 * Determine max CCB count and whether tagged queuing is 551 * available based on controller type. Tagged queuing 552 * only works on 'W' series adapters, 'C' series adapters 553 * with firmware of rev 4.42 and higher, and 'S' series 554 * adapters with firmware of rev 3.35 and higher. The 555 * maximum CCB counts are as follows: 556 * 557 * 192 BT-948/958/958D 558 * 100 BT-946C/956C/956CD/747C/757C/757CD/445C 559 * 50 BT-545C/540CF 560 * 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A 561 */ 562 if (bt->firmware_ver[0] == '5') { 563 bt->max_ccbs = 192; 564 bt->tag_capable = TRUE; 565 } else if (bt->firmware_ver[0] == '4') { 566 if (bt->model[0] == '5') 567 bt->max_ccbs = 50; 568 else 569 bt->max_ccbs = 100; 570 bt->tag_capable = (strcmp(bt->firmware_ver, "4.22") >= 0); 571 } else { 572 bt->max_ccbs = 30; 573 if (bt->firmware_ver[0] == '3' 574 && (strcmp(bt->firmware_ver, "3.35") >= 0)) 575 bt->tag_capable = TRUE; 576 else 577 bt->tag_capable = FALSE; 578 } 579 580 if (bt->tag_capable != FALSE) 581 bt->tags_permitted = ALL_TARGETS; 582 583 /* Determine Sync/Wide/Disc settings */ 584 if (bt->firmware_ver[0] >= '4') { 585 auto_scsi_data_t auto_scsi_data; 586 fetch_lram_params_t fetch_lram_params; 587 int error; 588 589 /* 590 * These settings are stored in the 591 * AutoSCSI data in LRAM of 'W' and 'C' 592 * adapters. 593 */ 594 fetch_lram_params.offset = AUTO_SCSI_BYTE_OFFSET; 595 fetch_lram_params.response_len = sizeof(auto_scsi_data); 596 error = bt_cmd(bt, BOP_FETCH_LRAM, 597 (u_int8_t*)&fetch_lram_params, 598 sizeof(fetch_lram_params), 599 (u_int8_t*)&auto_scsi_data, 600 sizeof(auto_scsi_data), DEFAULT_CMD_TIMEOUT); 601 602 if (error != 0) { 603 device_printf(dev, 604 "bt_fetch_adapter_info - Failed " 605 "Get Auto SCSI Info\n"); 606 return (error); 607 } 608 609 bt->disc_permitted = auto_scsi_data.low_disc_permitted 610 | (auto_scsi_data.high_disc_permitted << 8); 611 bt->sync_permitted = auto_scsi_data.low_sync_permitted 612 | (auto_scsi_data.high_sync_permitted << 8); 613 bt->fast_permitted = auto_scsi_data.low_fast_permitted 614 | (auto_scsi_data.high_fast_permitted << 8); 615 bt->ultra_permitted = auto_scsi_data.low_ultra_permitted 616 | (auto_scsi_data.high_ultra_permitted << 8); 617 bt->wide_permitted = auto_scsi_data.low_wide_permitted 618 | (auto_scsi_data.high_wide_permitted << 8); 619 620 if (bt->ultra_scsi == FALSE) 621 bt->ultra_permitted = 0; 622 623 if (bt->wide_bus == FALSE) 624 bt->wide_permitted = 0; 625 } else { 626 /* 627 * 'S' and 'A' series have this information in the setup 628 * information structure. 629 */ 630 setup_data_t setup_info; 631 632 length_param = sizeof(setup_info); 633 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, &length_param, 634 /*paramlen*/1, (u_int8_t*)&setup_info, 635 sizeof(setup_info), DEFAULT_CMD_TIMEOUT); 636 637 if (error != 0) { 638 device_printf(dev, 639 "bt_fetch_adapter_info - Failed " 640 "Get Setup Info\n"); 641 return (error); 642 } 643 644 if (setup_info.initiate_sync != 0) { 645 bt->sync_permitted = ALL_TARGETS; 646 647 if (bt->model[0] == '7') { 648 if (esetup_info.sync_neg10MB != 0) 649 bt->fast_permitted = ALL_TARGETS; 650 if (strcmp(bt->model, "757") == 0) 651 bt->wide_permitted = ALL_TARGETS; 652 } 653 } 654 bt->disc_permitted = ALL_TARGETS; 655 } 656 657 /* We need as many mailboxes as we can have ccbs */ 658 bt->num_boxes = bt->max_ccbs; 659 660 /* Determine our SCSI ID */ 661 662 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 663 (u_int8_t*)&config_data, sizeof(config_data), 664 DEFAULT_CMD_TIMEOUT); 665 if (error != 0) { 666 device_printf(dev, 667 "bt_fetch_adapter_info - Failed Get Config\n"); 668 return (error); 669 } 670 bt->scsi_id = config_data.scsi_id; 671 672 return (0); 673 } 674 675 /* 676 * Start the board, ready for normal operation 677 */ 678 int 679 bt_init(device_t dev) 680 { 681 struct bt_softc *bt = device_get_softc(dev); 682 683 /* Announce the Adapter */ 684 device_printf(dev, "BT-%s FW Rev. %s ", bt->model, bt->firmware_ver); 685 686 if (bt->ultra_scsi != 0) 687 printf("Ultra "); 688 689 if (bt->wide_bus != 0) 690 printf("Wide "); 691 else 692 printf("Narrow "); 693 694 if (bt->diff_bus != 0) 695 printf("Diff "); 696 697 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", bt->scsi_id, 698 bt->max_ccbs); 699 700 /* 701 * Create our DMA tags. These tags define the kinds of device 702 * accessible memory allocations and memory mappings we will 703 * need to perform during normal operation. 704 * 705 * Unless we need to further restrict the allocation, we rely 706 * on the restrictions of the parent dmat, hence the common 707 * use of MAXADDR and MAXSIZE. 708 */ 709 710 /* DMA tag for mapping buffers into device visible space. */ 711 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 712 /* alignment */ 1, 713 /* boundary */ 0, 714 /* lowaddr */ BUS_SPACE_MAXADDR, 715 /* highaddr */ BUS_SPACE_MAXADDR, 716 /* filter */ NULL, 717 /* filterarg */ NULL, 718 /* maxsize */ MAXBSIZE, 719 /* nsegments */ BT_NSEG, 720 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 721 /* flags */ BUS_DMA_ALLOCNOW, 722 /* lockfunc */ busdma_lock_mutex, 723 /* lockarg */ &Giant, 724 &bt->buffer_dmat) != 0) { 725 goto error_exit; 726 } 727 728 bt->init_level++; 729 /* DMA tag for our mailboxes */ 730 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 731 /* alignment */ 1, 732 /* boundary */ 0, 733 /* lowaddr */ bt->mailbox_addrlimit, 734 /* highaddr */ BUS_SPACE_MAXADDR, 735 /* filter */ NULL, 736 /* filterarg */ NULL, 737 /* maxsize */ bt->num_boxes * 738 (sizeof(bt_mbox_in_t) + 739 sizeof(bt_mbox_out_t)), 740 /* nsegments */ 1, 741 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 742 /* flags */ 0, 743 /* lockfunc */ busdma_lock_mutex, 744 /* lockarg */ &Giant, 745 &bt->mailbox_dmat) != 0) { 746 goto error_exit; 747 } 748 749 bt->init_level++; 750 751 /* Allocation for our mailboxes */ 752 if (bus_dmamem_alloc(bt->mailbox_dmat, (void **)&bt->out_boxes, 753 BUS_DMA_NOWAIT, &bt->mailbox_dmamap) != 0) { 754 goto error_exit; 755 } 756 757 bt->init_level++; 758 759 /* And permanently map them */ 760 bus_dmamap_load(bt->mailbox_dmat, bt->mailbox_dmamap, 761 bt->out_boxes, 762 bt->num_boxes * (sizeof(bt_mbox_in_t) 763 + sizeof(bt_mbox_out_t)), 764 btmapmboxes, bt, /*flags*/0); 765 766 bt->init_level++; 767 768 bt->in_boxes = (bt_mbox_in_t *)&bt->out_boxes[bt->num_boxes]; 769 770 btinitmboxes(bt); 771 772 /* DMA tag for our ccb structures */ 773 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 774 /* alignment */ 1, 775 /* boundary */ 0, 776 /* lowaddr */ BUS_SPACE_MAXADDR, 777 /* highaddr */ BUS_SPACE_MAXADDR, 778 /* filter */ NULL, 779 /* filterarg */ NULL, 780 /* maxsize */ bt->max_ccbs * 781 sizeof(struct bt_ccb), 782 /* nsegments */ 1, 783 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 784 /* flags */ 0, 785 /* lockfunc */ busdma_lock_mutex, 786 /* lockarg */ &Giant, 787 &bt->ccb_dmat) != 0) { 788 goto error_exit; 789 } 790 791 bt->init_level++; 792 793 /* Allocation for our ccbs */ 794 if (bus_dmamem_alloc(bt->ccb_dmat, (void **)&bt->bt_ccb_array, 795 BUS_DMA_NOWAIT, &bt->ccb_dmamap) != 0) { 796 goto error_exit; 797 } 798 799 bt->init_level++; 800 801 /* And permanently map them */ 802 bus_dmamap_load(bt->ccb_dmat, bt->ccb_dmamap, 803 bt->bt_ccb_array, 804 bt->max_ccbs * sizeof(struct bt_ccb), 805 btmapccbs, bt, /*flags*/0); 806 807 bt->init_level++; 808 809 /* DMA tag for our S/G structures. We allocate in page sized chunks */ 810 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 811 /* alignment */ 1, 812 /* boundary */ 0, 813 /* lowaddr */ BUS_SPACE_MAXADDR, 814 /* highaddr */ BUS_SPACE_MAXADDR, 815 /* filter */ NULL, 816 /* filterarg */ NULL, 817 /* maxsize */ PAGE_SIZE, 818 /* nsegments */ 1, 819 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 820 /* flags */ 0, 821 /* lockfunc */ busdma_lock_mutex, 822 /* lockarg */ &Giant, 823 &bt->sg_dmat) != 0) { 824 goto error_exit; 825 } 826 827 bt->init_level++; 828 829 /* Perform initial CCB allocation */ 830 bzero(bt->bt_ccb_array, bt->max_ccbs * sizeof(struct bt_ccb)); 831 btallocccbs(bt); 832 833 if (bt->num_ccbs == 0) { 834 device_printf(dev, 835 "bt_init - Unable to allocate initial ccbs\n"); 836 goto error_exit; 837 } 838 839 /* 840 * Note that we are going and return (to probe) 841 */ 842 return 0; 843 844 error_exit: 845 846 return (ENXIO); 847 } 848 849 int 850 bt_attach(device_t dev) 851 { 852 struct bt_softc *bt = device_get_softc(dev); 853 int tagged_dev_openings; 854 struct cam_devq *devq; 855 int error; 856 857 /* 858 * We reserve 1 ccb for error recovery, so don't 859 * tell the XPT about it. 860 */ 861 if (bt->tag_capable != 0) 862 tagged_dev_openings = bt->max_ccbs - 1; 863 else 864 tagged_dev_openings = 0; 865 866 /* 867 * Create the device queue for our SIM. 868 */ 869 devq = cam_simq_alloc(bt->max_ccbs - 1); 870 if (devq == NULL) 871 return (ENOMEM); 872 873 /* 874 * Construct our SIM entry 875 */ 876 bt->sim = cam_sim_alloc(btaction, btpoll, "bt", bt, bt->unit, 877 2, tagged_dev_openings, devq); 878 if (bt->sim == NULL) { 879 cam_simq_free(devq); 880 return (ENOMEM); 881 } 882 883 if (xpt_bus_register(bt->sim, 0) != CAM_SUCCESS) { 884 cam_sim_free(bt->sim, /*free_devq*/TRUE); 885 return (ENXIO); 886 } 887 888 if (xpt_create_path(&bt->path, /*periph*/NULL, 889 cam_sim_path(bt->sim), CAM_TARGET_WILDCARD, 890 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 891 xpt_bus_deregister(cam_sim_path(bt->sim)); 892 cam_sim_free(bt->sim, /*free_devq*/TRUE); 893 return (ENXIO); 894 } 895 896 /* 897 * Setup interrupt. 898 */ 899 error = bus_setup_intr(dev, bt->irq, INTR_TYPE_CAM|INTR_ENTROPY, 900 bt_intr, bt, &bt->ih); 901 if (error) { 902 device_printf(dev, "bus_setup_intr() failed: %d\n", error); 903 return (error); 904 } 905 906 return (0); 907 } 908 909 int 910 bt_check_probed_iop(u_int ioport) 911 { 912 u_int i; 913 914 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 915 if (bt_isa_ports[i].addr == ioport) { 916 if (bt_isa_ports[i].probed != 0) 917 return (1); 918 else { 919 return (0); 920 } 921 } 922 } 923 return (1); 924 } 925 926 void 927 bt_mark_probed_bio(isa_compat_io_t port) 928 { 929 if (port < BIO_DISABLED) 930 bt_mark_probed_iop(bt_board_ports[port]); 931 } 932 933 void 934 bt_mark_probed_iop(u_int ioport) 935 { 936 u_int i; 937 938 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 939 if (ioport == bt_isa_ports[i].addr) { 940 bt_isa_ports[i].probed = 1; 941 break; 942 } 943 } 944 } 945 946 void 947 bt_find_probe_range(int ioport, int *port_index, int *max_port_index) 948 { 949 if (ioport > 0) { 950 int i; 951 952 for (i = 0;i < BT_NUM_ISAPORTS; i++) 953 if (ioport <= bt_isa_ports[i].addr) 954 break; 955 if ((i >= BT_NUM_ISAPORTS) 956 || (ioport != bt_isa_ports[i].addr)) { 957 printf( 958 "bt_find_probe_range: Invalid baseport of 0x%x specified.\n" 959 "bt_find_probe_range: Nearest valid baseport is 0x%x.\n" 960 "bt_find_probe_range: Failing probe.\n", 961 ioport, 962 (i < BT_NUM_ISAPORTS) 963 ? bt_isa_ports[i].addr 964 : bt_isa_ports[BT_NUM_ISAPORTS - 1].addr); 965 *port_index = *max_port_index = -1; 966 return; 967 } 968 *port_index = *max_port_index = bt_isa_ports[i].bio; 969 } else { 970 *port_index = 0; 971 *max_port_index = BT_NUM_ISAPORTS - 1; 972 } 973 } 974 975 int 976 bt_iop_from_bio(isa_compat_io_t bio_index) 977 { 978 if (bio_index >= 0 && bio_index < BT_NUM_ISAPORTS) 979 return (bt_board_ports[bio_index]); 980 return (-1); 981 } 982 983 984 static void 985 btallocccbs(struct bt_softc *bt) 986 { 987 struct bt_ccb *next_ccb; 988 struct sg_map_node *sg_map; 989 bus_addr_t physaddr; 990 bt_sg_t *segs; 991 int newcount; 992 int i; 993 994 if (bt->num_ccbs >= bt->max_ccbs) 995 /* Can't allocate any more */ 996 return; 997 998 next_ccb = &bt->bt_ccb_array[bt->num_ccbs]; 999 1000 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT); 1001 1002 if (sg_map == NULL) 1003 goto error_exit; 1004 1005 /* Allocate S/G space for the next batch of CCBS */ 1006 if (bus_dmamem_alloc(bt->sg_dmat, (void **)&sg_map->sg_vaddr, 1007 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 1008 free(sg_map, M_DEVBUF); 1009 goto error_exit; 1010 } 1011 1012 SLIST_INSERT_HEAD(&bt->sg_maps, sg_map, links); 1013 1014 bus_dmamap_load(bt->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 1015 PAGE_SIZE, btmapsgs, bt, /*flags*/0); 1016 1017 segs = sg_map->sg_vaddr; 1018 physaddr = sg_map->sg_physaddr; 1019 1020 newcount = (PAGE_SIZE / (BT_NSEG * sizeof(bt_sg_t))); 1021 for (i = 0; bt->num_ccbs < bt->max_ccbs && i < newcount; i++) { 1022 int error; 1023 1024 next_ccb->sg_list = segs; 1025 next_ccb->sg_list_phys = physaddr; 1026 next_ccb->flags = BCCB_FREE; 1027 error = bus_dmamap_create(bt->buffer_dmat, /*flags*/0, 1028 &next_ccb->dmamap); 1029 if (error != 0) 1030 break; 1031 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, next_ccb, links); 1032 segs += BT_NSEG; 1033 physaddr += (BT_NSEG * sizeof(bt_sg_t)); 1034 next_ccb++; 1035 bt->num_ccbs++; 1036 } 1037 1038 /* Reserve a CCB for error recovery */ 1039 if (bt->recovery_bccb == NULL) { 1040 bt->recovery_bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1041 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1042 } 1043 1044 if (SLIST_FIRST(&bt->free_bt_ccbs) != NULL) 1045 return; 1046 1047 error_exit: 1048 device_printf(bt->dev, "Can't malloc BCCBs\n"); 1049 } 1050 1051 static __inline void 1052 btfreeccb(struct bt_softc *bt, struct bt_ccb *bccb) 1053 { 1054 int s; 1055 1056 s = splcam(); 1057 if ((bccb->flags & BCCB_ACTIVE) != 0) 1058 LIST_REMOVE(&bccb->ccb->ccb_h, sim_links.le); 1059 if (bt->resource_shortage != 0 1060 && (bccb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 1061 bccb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1062 bt->resource_shortage = FALSE; 1063 } 1064 bccb->flags = BCCB_FREE; 1065 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, bccb, links); 1066 bt->active_ccbs--; 1067 splx(s); 1068 } 1069 1070 static __inline struct bt_ccb* 1071 btgetccb(struct bt_softc *bt) 1072 { 1073 struct bt_ccb* bccb; 1074 int s; 1075 1076 s = splcam(); 1077 if ((bccb = SLIST_FIRST(&bt->free_bt_ccbs)) != NULL) { 1078 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1079 bt->active_ccbs++; 1080 } else { 1081 btallocccbs(bt); 1082 bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1083 if (bccb != NULL) { 1084 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1085 bt->active_ccbs++; 1086 } 1087 } 1088 splx(s); 1089 1090 return (bccb); 1091 } 1092 1093 static void 1094 btaction(struct cam_sim *sim, union ccb *ccb) 1095 { 1096 struct bt_softc *bt; 1097 1098 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("btaction\n")); 1099 1100 bt = (struct bt_softc *)cam_sim_softc(sim); 1101 1102 switch (ccb->ccb_h.func_code) { 1103 /* Common cases first */ 1104 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 1105 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 1106 { 1107 struct bt_ccb *bccb; 1108 struct bt_hccb *hccb; 1109 1110 /* 1111 * get a bccb to use. 1112 */ 1113 if ((bccb = btgetccb(bt)) == NULL) { 1114 int s; 1115 1116 s = splcam(); 1117 bt->resource_shortage = TRUE; 1118 splx(s); 1119 xpt_freeze_simq(bt->sim, /*count*/1); 1120 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1121 xpt_done(ccb); 1122 return; 1123 } 1124 1125 hccb = &bccb->hccb; 1126 1127 /* 1128 * So we can find the BCCB when an abort is requested 1129 */ 1130 bccb->ccb = ccb; 1131 ccb->ccb_h.ccb_bccb_ptr = bccb; 1132 ccb->ccb_h.ccb_bt_ptr = bt; 1133 1134 /* 1135 * Put all the arguments for the xfer in the bccb 1136 */ 1137 hccb->target_id = ccb->ccb_h.target_id; 1138 hccb->target_lun = ccb->ccb_h.target_lun; 1139 hccb->btstat = 0; 1140 hccb->sdstat = 0; 1141 1142 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1143 struct ccb_scsiio *csio; 1144 struct ccb_hdr *ccbh; 1145 1146 csio = &ccb->csio; 1147 ccbh = &csio->ccb_h; 1148 hccb->opcode = INITIATOR_CCB_WRESID; 1149 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) ? 1 : 0; 1150 hccb->dataout =(ccb->ccb_h.flags & CAM_DIR_OUT) ? 1 : 0; 1151 hccb->cmd_len = csio->cdb_len; 1152 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) { 1153 ccb->ccb_h.status = CAM_REQ_INVALID; 1154 btfreeccb(bt, bccb); 1155 xpt_done(ccb); 1156 return; 1157 } 1158 hccb->sense_len = csio->sense_len; 1159 if ((ccbh->flags & CAM_TAG_ACTION_VALID) != 0 1160 && ccb->csio.tag_action != CAM_TAG_ACTION_NONE) { 1161 hccb->tag_enable = TRUE; 1162 hccb->tag_type = (ccb->csio.tag_action & 0x3); 1163 } else { 1164 hccb->tag_enable = FALSE; 1165 hccb->tag_type = 0; 1166 } 1167 if ((ccbh->flags & CAM_CDB_POINTER) != 0) { 1168 if ((ccbh->flags & CAM_CDB_PHYS) == 0) { 1169 bcopy(csio->cdb_io.cdb_ptr, 1170 hccb->scsi_cdb, hccb->cmd_len); 1171 } else { 1172 /* I guess I could map it in... */ 1173 ccbh->status = CAM_REQ_INVALID; 1174 btfreeccb(bt, bccb); 1175 xpt_done(ccb); 1176 return; 1177 } 1178 } else { 1179 bcopy(csio->cdb_io.cdb_bytes, 1180 hccb->scsi_cdb, hccb->cmd_len); 1181 } 1182 /* If need be, bounce our sense buffer */ 1183 if (bt->sense_buffers != NULL) { 1184 hccb->sense_addr = btsensepaddr(bt, bccb); 1185 } else { 1186 hccb->sense_addr = vtophys(&csio->sense_data); 1187 } 1188 /* 1189 * If we have any data to send with this command, 1190 * map it into bus space. 1191 */ 1192 /* Only use S/G if there is a transfer */ 1193 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1194 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) { 1195 /* 1196 * We've been given a pointer 1197 * to a single buffer. 1198 */ 1199 if ((ccbh->flags & CAM_DATA_PHYS)==0) { 1200 int s; 1201 int error; 1202 1203 s = splsoftvm(); 1204 error = bus_dmamap_load( 1205 bt->buffer_dmat, 1206 bccb->dmamap, 1207 csio->data_ptr, 1208 csio->dxfer_len, 1209 btexecuteccb, 1210 bccb, 1211 /*flags*/0); 1212 if (error == EINPROGRESS) { 1213 /* 1214 * So as to maintain 1215 * ordering, freeze the 1216 * controller queue 1217 * until our mapping is 1218 * returned. 1219 */ 1220 xpt_freeze_simq(bt->sim, 1221 1); 1222 csio->ccb_h.status |= 1223 CAM_RELEASE_SIMQ; 1224 } 1225 splx(s); 1226 } else { 1227 struct bus_dma_segment seg; 1228 1229 /* Pointer to physical buffer */ 1230 seg.ds_addr = 1231 (bus_addr_t)csio->data_ptr; 1232 seg.ds_len = csio->dxfer_len; 1233 btexecuteccb(bccb, &seg, 1, 0); 1234 } 1235 } else { 1236 struct bus_dma_segment *segs; 1237 1238 if ((ccbh->flags & CAM_DATA_PHYS) != 0) 1239 panic("btaction - Physical " 1240 "segment pointers " 1241 "unsupported"); 1242 1243 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0) 1244 panic("btaction - Virtual " 1245 "segment addresses " 1246 "unsupported"); 1247 1248 /* Just use the segments provided */ 1249 segs = (struct bus_dma_segment *) 1250 csio->data_ptr; 1251 btexecuteccb(bccb, segs, 1252 csio->sglist_cnt, 0); 1253 } 1254 } else { 1255 btexecuteccb(bccb, NULL, 0, 0); 1256 } 1257 } else { 1258 hccb->opcode = INITIATOR_BUS_DEV_RESET; 1259 /* No data transfer */ 1260 hccb->datain = TRUE; 1261 hccb->dataout = TRUE; 1262 hccb->cmd_len = 0; 1263 hccb->sense_len = 0; 1264 hccb->tag_enable = FALSE; 1265 hccb->tag_type = 0; 1266 btexecuteccb(bccb, NULL, 0, 0); 1267 } 1268 break; 1269 } 1270 case XPT_EN_LUN: /* Enable LUN as a target */ 1271 case XPT_TARGET_IO: /* Execute target I/O request */ 1272 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 1273 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 1274 case XPT_ABORT: /* Abort the specified CCB */ 1275 /* XXX Implement */ 1276 ccb->ccb_h.status = CAM_REQ_INVALID; 1277 xpt_done(ccb); 1278 break; 1279 case XPT_SET_TRAN_SETTINGS: 1280 { 1281 /* XXX Implement */ 1282 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 1283 xpt_done(ccb); 1284 break; 1285 } 1286 case XPT_GET_TRAN_SETTINGS: 1287 /* Get default/user set transfer settings for the target */ 1288 { 1289 struct ccb_trans_settings *cts; 1290 u_int target_mask; 1291 1292 cts = &ccb->cts; 1293 target_mask = 0x01 << ccb->ccb_h.target_id; 1294 #ifdef CAM_NEW_TRAN_CODE 1295 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 1296 struct ccb_trans_settings_scsi *scsi = 1297 &cts->proto_specific.scsi; 1298 struct ccb_trans_settings_spi *spi = 1299 &cts->xport_specific.spi; 1300 cts->protocol = PROTO_SCSI; 1301 cts->protocol_version = SCSI_REV_2; 1302 cts->transport = XPORT_SPI; 1303 cts->transport_version = 2; 1304 1305 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1306 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 1307 1308 if ((bt->disc_permitted & target_mask) != 0) 1309 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 1310 if ((bt->tags_permitted & target_mask) != 0) 1311 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 1312 1313 if ((bt->ultra_permitted & target_mask) != 0) 1314 spi->sync_period = 12; 1315 else if ((bt->fast_permitted & target_mask) != 0) 1316 spi->sync_period = 25; 1317 else if ((bt->sync_permitted & target_mask) != 0) 1318 spi->sync_period = 50; 1319 else 1320 spi->sync_period = 0; 1321 1322 if (spi->sync_period != 0) 1323 spi->sync_offset = 15; 1324 1325 spi->valid |= CTS_SPI_VALID_SYNC_RATE; 1326 spi->valid |= CTS_SPI_VALID_SYNC_OFFSET; 1327 1328 spi->valid |= CTS_SPI_VALID_BUS_WIDTH; 1329 if ((bt->wide_permitted & target_mask) != 0) 1330 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 1331 else 1332 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1333 1334 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 1335 scsi->valid = CTS_SCSI_VALID_TQ; 1336 spi->valid |= CTS_SPI_VALID_DISC; 1337 } else 1338 scsi->valid = 0; 1339 } else { 1340 #else 1341 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 1342 cts->flags = 0; 1343 if ((bt->disc_permitted & target_mask) != 0) 1344 cts->flags |= CCB_TRANS_DISC_ENB; 1345 if ((bt->tags_permitted & target_mask) != 0) 1346 cts->flags |= CCB_TRANS_TAG_ENB; 1347 if ((bt->wide_permitted & target_mask) != 0) 1348 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 1349 else 1350 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1351 if ((bt->ultra_permitted & target_mask) != 0) 1352 cts->sync_period = 12; 1353 else if ((bt->fast_permitted & target_mask) != 0) 1354 cts->sync_period = 25; 1355 else if ((bt->sync_permitted & target_mask) != 0) 1356 cts->sync_period = 50; 1357 else 1358 cts->sync_period = 0; 1359 1360 if (cts->sync_period != 0) 1361 cts->sync_offset = 15; 1362 1363 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1364 | CCB_TRANS_SYNC_OFFSET_VALID 1365 | CCB_TRANS_BUS_WIDTH_VALID 1366 | CCB_TRANS_DISC_VALID 1367 | CCB_TRANS_TQ_VALID; 1368 } else { 1369 #endif 1370 btfetchtransinfo(bt, cts); 1371 } 1372 1373 ccb->ccb_h.status = CAM_REQ_CMP; 1374 xpt_done(ccb); 1375 break; 1376 } 1377 case XPT_CALC_GEOMETRY: 1378 { 1379 struct ccb_calc_geometry *ccg; 1380 u_int32_t size_mb; 1381 u_int32_t secs_per_cylinder; 1382 1383 ccg = &ccb->ccg; 1384 size_mb = ccg->volume_size 1385 / ((1024L * 1024L) / ccg->block_size); 1386 1387 if (size_mb >= 1024 && (bt->extended_trans != 0)) { 1388 if (size_mb >= 2048) { 1389 ccg->heads = 255; 1390 ccg->secs_per_track = 63; 1391 } else { 1392 ccg->heads = 128; 1393 ccg->secs_per_track = 32; 1394 } 1395 } else { 1396 ccg->heads = 64; 1397 ccg->secs_per_track = 32; 1398 } 1399 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 1400 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 1401 ccb->ccb_h.status = CAM_REQ_CMP; 1402 xpt_done(ccb); 1403 break; 1404 } 1405 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 1406 { 1407 btreset(bt, /*hardreset*/TRUE); 1408 ccb->ccb_h.status = CAM_REQ_CMP; 1409 xpt_done(ccb); 1410 break; 1411 } 1412 case XPT_TERM_IO: /* Terminate the I/O process */ 1413 /* XXX Implement */ 1414 ccb->ccb_h.status = CAM_REQ_INVALID; 1415 xpt_done(ccb); 1416 break; 1417 case XPT_PATH_INQ: /* Path routing inquiry */ 1418 { 1419 struct ccb_pathinq *cpi = &ccb->cpi; 1420 1421 cpi->version_num = 1; /* XXX??? */ 1422 cpi->hba_inquiry = PI_SDTR_ABLE; 1423 if (bt->tag_capable != 0) 1424 cpi->hba_inquiry |= PI_TAG_ABLE; 1425 if (bt->wide_bus != 0) 1426 cpi->hba_inquiry |= PI_WIDE_16; 1427 cpi->target_sprt = 0; 1428 cpi->hba_misc = 0; 1429 cpi->hba_eng_cnt = 0; 1430 cpi->max_target = bt->wide_bus ? 15 : 7; 1431 cpi->max_lun = 7; 1432 cpi->initiator_id = bt->scsi_id; 1433 cpi->bus_id = cam_sim_bus(sim); 1434 cpi->base_transfer_speed = 3300; 1435 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 1436 strncpy(cpi->hba_vid, "BusLogic", HBA_IDLEN); 1437 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 1438 cpi->unit_number = cam_sim_unit(sim); 1439 cpi->ccb_h.status = CAM_REQ_CMP; 1440 #ifdef CAM_NEW_TRAN_CODE 1441 cpi->transport = XPORT_SPI; 1442 cpi->transport_version = 2; 1443 cpi->protocol = PROTO_SCSI; 1444 cpi->protocol_version = SCSI_REV_2; 1445 #endif 1446 xpt_done(ccb); 1447 break; 1448 } 1449 default: 1450 ccb->ccb_h.status = CAM_REQ_INVALID; 1451 xpt_done(ccb); 1452 break; 1453 } 1454 } 1455 1456 static void 1457 btexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1458 { 1459 struct bt_ccb *bccb; 1460 union ccb *ccb; 1461 struct bt_softc *bt; 1462 int s; 1463 1464 bccb = (struct bt_ccb *)arg; 1465 ccb = bccb->ccb; 1466 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 1467 1468 if (error != 0) { 1469 if (error != EFBIG) 1470 device_printf(bt->dev, 1471 "Unexepected error 0x%x returned from " 1472 "bus_dmamap_load\n", error); 1473 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1474 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1475 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1476 } 1477 btfreeccb(bt, bccb); 1478 xpt_done(ccb); 1479 return; 1480 } 1481 1482 if (nseg != 0) { 1483 bt_sg_t *sg; 1484 bus_dma_segment_t *end_seg; 1485 bus_dmasync_op_t op; 1486 1487 end_seg = dm_segs + nseg; 1488 1489 /* Copy the segments into our SG list */ 1490 sg = bccb->sg_list; 1491 while (dm_segs < end_seg) { 1492 sg->len = dm_segs->ds_len; 1493 sg->addr = dm_segs->ds_addr; 1494 sg++; 1495 dm_segs++; 1496 } 1497 1498 if (nseg > 1) { 1499 bccb->hccb.opcode = INITIATOR_SG_CCB_WRESID; 1500 bccb->hccb.data_len = sizeof(bt_sg_t) * nseg; 1501 bccb->hccb.data_addr = bccb->sg_list_phys; 1502 } else { 1503 bccb->hccb.data_len = bccb->sg_list->len; 1504 bccb->hccb.data_addr = bccb->sg_list->addr; 1505 } 1506 1507 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1508 op = BUS_DMASYNC_PREREAD; 1509 else 1510 op = BUS_DMASYNC_PREWRITE; 1511 1512 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1513 1514 } else { 1515 bccb->hccb.opcode = INITIATOR_CCB; 1516 bccb->hccb.data_len = 0; 1517 bccb->hccb.data_addr = 0; 1518 } 1519 1520 s = splcam(); 1521 1522 /* 1523 * Last time we need to check if this CCB needs to 1524 * be aborted. 1525 */ 1526 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1527 if (nseg != 0) 1528 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1529 btfreeccb(bt, bccb); 1530 xpt_done(ccb); 1531 splx(s); 1532 return; 1533 } 1534 1535 bccb->flags = BCCB_ACTIVE; 1536 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1537 LIST_INSERT_HEAD(&bt->pending_ccbs, &ccb->ccb_h, sim_links.le); 1538 1539 ccb->ccb_h.timeout_ch = 1540 timeout(bttimeout, (caddr_t)bccb, 1541 (ccb->ccb_h.timeout * hz) / 1000); 1542 1543 /* Tell the adapter about this command */ 1544 bt->cur_outbox->ccb_addr = btccbvtop(bt, bccb); 1545 if (bt->cur_outbox->action_code != BMBO_FREE) { 1546 /* 1547 * We should never encounter a busy mailbox. 1548 * If we do, warn the user, and treat it as 1549 * a resource shortage. If the controller is 1550 * hung, one of the pending transactions will 1551 * timeout causing us to start recovery operations. 1552 */ 1553 device_printf(bt->dev, 1554 "Encountered busy mailbox with %d out of %d " 1555 "commands active!!!\n", bt->active_ccbs, 1556 bt->max_ccbs); 1557 untimeout(bttimeout, bccb, ccb->ccb_h.timeout_ch); 1558 if (nseg != 0) 1559 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1560 btfreeccb(bt, bccb); 1561 bt->resource_shortage = TRUE; 1562 xpt_freeze_simq(bt->sim, /*count*/1); 1563 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1564 xpt_done(ccb); 1565 return; 1566 } 1567 bt->cur_outbox->action_code = BMBO_START; 1568 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 1569 btnextoutbox(bt); 1570 splx(s); 1571 } 1572 1573 void 1574 bt_intr(void *arg) 1575 { 1576 struct bt_softc *bt; 1577 u_int intstat; 1578 1579 bt = (struct bt_softc *)arg; 1580 while (((intstat = bt_inb(bt, INTSTAT_REG)) & INTR_PENDING) != 0) { 1581 1582 if ((intstat & CMD_COMPLETE) != 0) { 1583 bt->latched_status = bt_inb(bt, STATUS_REG); 1584 bt->command_cmp = TRUE; 1585 } 1586 1587 bt_outb(bt, CONTROL_REG, RESET_INTR); 1588 1589 if ((intstat & IMB_LOADED) != 0) { 1590 while (bt->cur_inbox->comp_code != BMBI_FREE) { 1591 btdone(bt, 1592 btccbptov(bt, bt->cur_inbox->ccb_addr), 1593 bt->cur_inbox->comp_code); 1594 bt->cur_inbox->comp_code = BMBI_FREE; 1595 btnextinbox(bt); 1596 } 1597 } 1598 1599 if ((intstat & SCSI_BUS_RESET) != 0) { 1600 btreset(bt, /*hardreset*/FALSE); 1601 } 1602 } 1603 } 1604 1605 static void 1606 btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code) 1607 { 1608 union ccb *ccb; 1609 struct ccb_scsiio *csio; 1610 1611 ccb = bccb->ccb; 1612 csio = &bccb->ccb->csio; 1613 1614 if ((bccb->flags & BCCB_ACTIVE) == 0) { 1615 device_printf(bt->dev, 1616 "btdone - Attempt to free non-active BCCB %p\n", 1617 (void *)bccb); 1618 return; 1619 } 1620 1621 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1622 bus_dmasync_op_t op; 1623 1624 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1625 op = BUS_DMASYNC_POSTREAD; 1626 else 1627 op = BUS_DMASYNC_POSTWRITE; 1628 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1629 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1630 } 1631 1632 if (bccb == bt->recovery_bccb) { 1633 /* 1634 * The recovery BCCB does not have a CCB associated 1635 * with it, so short circuit the normal error handling. 1636 * We now traverse our list of pending CCBs and process 1637 * any that were terminated by the recovery CCBs action. 1638 * We also reinstate timeouts for all remaining, pending, 1639 * CCBs. 1640 */ 1641 struct cam_path *path; 1642 struct ccb_hdr *ccb_h; 1643 cam_status error; 1644 1645 /* Notify all clients that a BDR occured */ 1646 error = xpt_create_path(&path, /*periph*/NULL, 1647 cam_sim_path(bt->sim), 1648 bccb->hccb.target_id, 1649 CAM_LUN_WILDCARD); 1650 1651 if (error == CAM_REQ_CMP) 1652 xpt_async(AC_SENT_BDR, path, NULL); 1653 1654 ccb_h = LIST_FIRST(&bt->pending_ccbs); 1655 while (ccb_h != NULL) { 1656 struct bt_ccb *pending_bccb; 1657 1658 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1659 if (pending_bccb->hccb.target_id 1660 == bccb->hccb.target_id) { 1661 pending_bccb->hccb.btstat = BTSTAT_HA_BDR; 1662 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1663 btdone(bt, pending_bccb, BMBI_ERROR); 1664 } else { 1665 ccb_h->timeout_ch = 1666 timeout(bttimeout, (caddr_t)pending_bccb, 1667 (ccb_h->timeout * hz) / 1000); 1668 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1669 } 1670 } 1671 device_printf(bt->dev, "No longer in timeout\n"); 1672 return; 1673 } 1674 1675 untimeout(bttimeout, bccb, ccb->ccb_h.timeout_ch); 1676 1677 switch (comp_code) { 1678 case BMBI_FREE: 1679 device_printf(bt->dev, 1680 "btdone - CCB completed with free status!\n"); 1681 break; 1682 case BMBI_NOT_FOUND: 1683 device_printf(bt->dev, 1684 "btdone - CCB Abort failed to find CCB\n"); 1685 break; 1686 case BMBI_ABORT: 1687 case BMBI_ERROR: 1688 if (bootverbose) { 1689 printf("bt: ccb %p - error %x occured. " 1690 "btstat = %x, sdstat = %x\n", 1691 (void *)bccb, comp_code, bccb->hccb.btstat, 1692 bccb->hccb.sdstat); 1693 } 1694 /* An error occured */ 1695 switch(bccb->hccb.btstat) { 1696 case BTSTAT_DATARUN_ERROR: 1697 if (bccb->hccb.data_len == 0) { 1698 /* 1699 * At least firmware 4.22, does this 1700 * for a QUEUE FULL condition. 1701 */ 1702 bccb->hccb.sdstat = SCSI_STATUS_QUEUE_FULL; 1703 } else if (bccb->hccb.data_len < 0) { 1704 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1705 break; 1706 } 1707 /* FALLTHROUGH */ 1708 case BTSTAT_NOERROR: 1709 case BTSTAT_LINKED_CMD_COMPLETE: 1710 case BTSTAT_LINKED_CMD_FLAG_COMPLETE: 1711 case BTSTAT_DATAUNDERUN_ERROR: 1712 1713 csio->scsi_status = bccb->hccb.sdstat; 1714 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1715 switch(csio->scsi_status) { 1716 case SCSI_STATUS_CHECK_COND: 1717 case SCSI_STATUS_CMD_TERMINATED: 1718 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1719 /* Bounce sense back if necessary */ 1720 if (bt->sense_buffers != NULL) { 1721 csio->sense_data = 1722 *btsensevaddr(bt, bccb); 1723 } 1724 break; 1725 default: 1726 break; 1727 case SCSI_STATUS_OK: 1728 csio->ccb_h.status = CAM_REQ_CMP; 1729 break; 1730 } 1731 csio->resid = bccb->hccb.data_len; 1732 break; 1733 case BTSTAT_SELTIMEOUT: 1734 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1735 break; 1736 case BTSTAT_UNEXPECTED_BUSFREE: 1737 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1738 break; 1739 case BTSTAT_INVALID_PHASE: 1740 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1741 break; 1742 case BTSTAT_INVALID_ACTION_CODE: 1743 panic("%s: Inavlid Action code", bt_name(bt)); 1744 break; 1745 case BTSTAT_INVALID_OPCODE: 1746 panic("%s: Inavlid CCB Opcode code", bt_name(bt)); 1747 break; 1748 case BTSTAT_LINKED_CCB_LUN_MISMATCH: 1749 /* We don't even support linked commands... */ 1750 panic("%s: Linked CCB Lun Mismatch", bt_name(bt)); 1751 break; 1752 case BTSTAT_INVALID_CCB_OR_SG_PARAM: 1753 panic("%s: Invalid CCB or SG list", bt_name(bt)); 1754 break; 1755 case BTSTAT_AUTOSENSE_FAILED: 1756 csio->ccb_h.status = CAM_AUTOSENSE_FAIL; 1757 break; 1758 case BTSTAT_TAGGED_MSG_REJECTED: 1759 { 1760 struct ccb_trans_settings neg; 1761 #ifdef CAM_NEW_TRAN_CODE 1762 struct ccb_trans_settings_scsi *scsi = 1763 &neg.proto_specific.scsi; 1764 1765 neg.protocol = PROTO_SCSI; 1766 neg.protocol_version = SCSI_REV_2; 1767 neg.transport = XPORT_SPI; 1768 neg.transport_version = 2; 1769 scsi->valid = CTS_SCSI_VALID_TQ; 1770 scsi->flags = 0; 1771 #else 1772 1773 neg.flags = 0; 1774 neg.valid = CCB_TRANS_TQ_VALID; 1775 #endif 1776 xpt_print_path(csio->ccb_h.path); 1777 printf("refuses tagged commands. Performing " 1778 "non-tagged I/O\n"); 1779 xpt_setup_ccb(&neg.ccb_h, csio->ccb_h.path, 1780 /*priority*/1); 1781 xpt_async(AC_TRANSFER_NEG, csio->ccb_h.path, &neg); 1782 bt->tags_permitted &= ~(0x01 << csio->ccb_h.target_id); 1783 csio->ccb_h.status = CAM_MSG_REJECT_REC; 1784 break; 1785 } 1786 case BTSTAT_UNSUPPORTED_MSG_RECEIVED: 1787 /* 1788 * XXX You would think that this is 1789 * a recoverable error... Hmmm. 1790 */ 1791 csio->ccb_h.status = CAM_REQ_CMP_ERR; 1792 break; 1793 case BTSTAT_HA_SOFTWARE_ERROR: 1794 case BTSTAT_HA_WATCHDOG_ERROR: 1795 case BTSTAT_HARDWARE_FAILURE: 1796 /* Hardware reset ??? Can we recover ??? */ 1797 csio->ccb_h.status = CAM_NO_HBA; 1798 break; 1799 case BTSTAT_TARGET_IGNORED_ATN: 1800 case BTSTAT_OTHER_SCSI_BUS_RESET: 1801 case BTSTAT_HA_SCSI_BUS_RESET: 1802 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1803 != CAM_CMD_TIMEOUT) 1804 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1805 break; 1806 case BTSTAT_HA_BDR: 1807 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) 1808 csio->ccb_h.status = CAM_BDR_SENT; 1809 else 1810 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1811 break; 1812 case BTSTAT_INVALID_RECONNECT: 1813 case BTSTAT_ABORT_QUEUE_GENERATED: 1814 csio->ccb_h.status = CAM_REQ_TERMIO; 1815 break; 1816 case BTSTAT_SCSI_PERROR_DETECTED: 1817 csio->ccb_h.status = CAM_UNCOR_PARITY; 1818 break; 1819 } 1820 if (csio->ccb_h.status != CAM_REQ_CMP) { 1821 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1822 csio->ccb_h.status |= CAM_DEV_QFRZN; 1823 } 1824 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1825 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1826 btfreeccb(bt, bccb); 1827 xpt_done(ccb); 1828 break; 1829 case BMBI_OK: 1830 /* All completed without incident */ 1831 ccb->ccb_h.status |= CAM_REQ_CMP; 1832 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1833 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1834 btfreeccb(bt, bccb); 1835 xpt_done(ccb); 1836 break; 1837 } 1838 } 1839 1840 static int 1841 btreset(struct bt_softc* bt, int hard_reset) 1842 { 1843 struct ccb_hdr *ccb_h; 1844 u_int status; 1845 u_int timeout; 1846 u_int8_t reset_type; 1847 1848 if (hard_reset != 0) 1849 reset_type = HARD_RESET; 1850 else 1851 reset_type = SOFT_RESET; 1852 bt_outb(bt, CONTROL_REG, reset_type); 1853 1854 /* Wait 5sec. for Diagnostic start */ 1855 timeout = 5 * 10000; 1856 while (--timeout) { 1857 status = bt_inb(bt, STATUS_REG); 1858 if ((status & DIAG_ACTIVE) != 0) 1859 break; 1860 DELAY(100); 1861 } 1862 if (timeout == 0) { 1863 if (bootverbose) 1864 printf("%s: btreset - Diagnostic Active failed to " 1865 "assert. status = 0x%x\n", bt_name(bt), status); 1866 return (ETIMEDOUT); 1867 } 1868 1869 /* Wait 10sec. for Diagnostic end */ 1870 timeout = 10 * 10000; 1871 while (--timeout) { 1872 status = bt_inb(bt, STATUS_REG); 1873 if ((status & DIAG_ACTIVE) == 0) 1874 break; 1875 DELAY(100); 1876 } 1877 if (timeout == 0) { 1878 panic("%s: btreset - Diagnostic Active failed to drop. " 1879 "status = 0x%x\n", bt_name(bt), status); 1880 return (ETIMEDOUT); 1881 } 1882 1883 /* Wait for the host adapter to become ready or report a failure */ 1884 timeout = 10000; 1885 while (--timeout) { 1886 status = bt_inb(bt, STATUS_REG); 1887 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1888 break; 1889 DELAY(100); 1890 } 1891 if (timeout == 0) { 1892 printf("%s: btreset - Host adapter failed to come ready. " 1893 "status = 0x%x\n", bt_name(bt), status); 1894 return (ETIMEDOUT); 1895 } 1896 1897 /* If the diagnostics failed, tell the user */ 1898 if ((status & DIAG_FAIL) != 0 1899 || (status & HA_READY) == 0) { 1900 printf("%s: btreset - Adapter failed diagnostics\n", 1901 bt_name(bt)); 1902 1903 if ((status & DATAIN_REG_READY) != 0) 1904 printf("%s: btreset - Host Adapter Error code = 0x%x\n", 1905 bt_name(bt), bt_inb(bt, DATAIN_REG)); 1906 return (ENXIO); 1907 } 1908 1909 /* If we've allocated mailboxes, initialize them */ 1910 if (bt->init_level > 4) 1911 btinitmboxes(bt); 1912 1913 /* If we've attached to the XPT, tell it about the event */ 1914 if (bt->path != NULL) 1915 xpt_async(AC_BUS_RESET, bt->path, NULL); 1916 1917 /* 1918 * Perform completion processing for all outstanding CCBs. 1919 */ 1920 while ((ccb_h = LIST_FIRST(&bt->pending_ccbs)) != NULL) { 1921 struct bt_ccb *pending_bccb; 1922 1923 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1924 pending_bccb->hccb.btstat = BTSTAT_HA_SCSI_BUS_RESET; 1925 btdone(bt, pending_bccb, BMBI_ERROR); 1926 } 1927 1928 return (0); 1929 } 1930 1931 /* 1932 * Send a command to the adapter. 1933 */ 1934 int 1935 bt_cmd(struct bt_softc *bt, bt_op_t opcode, u_int8_t *params, u_int param_len, 1936 u_int8_t *reply_data, u_int reply_len, u_int cmd_timeout) 1937 { 1938 u_int timeout; 1939 u_int status; 1940 u_int saved_status; 1941 u_int intstat; 1942 u_int reply_buf_size; 1943 int s; 1944 int cmd_complete; 1945 int error; 1946 1947 /* No data returned to start */ 1948 reply_buf_size = reply_len; 1949 reply_len = 0; 1950 intstat = 0; 1951 cmd_complete = 0; 1952 saved_status = 0; 1953 error = 0; 1954 1955 bt->command_cmp = 0; 1956 /* 1957 * Wait up to 10 sec. for the adapter to become 1958 * ready to accept commands. 1959 */ 1960 timeout = 100000; 1961 while (--timeout) { 1962 status = bt_inb(bt, STATUS_REG); 1963 if ((status & HA_READY) != 0 1964 && (status & CMD_REG_BUSY) == 0) 1965 break; 1966 /* 1967 * Throw away any pending data which may be 1968 * left over from earlier commands that we 1969 * timedout on. 1970 */ 1971 if ((status & DATAIN_REG_READY) != 0) 1972 (void)bt_inb(bt, DATAIN_REG); 1973 DELAY(100); 1974 } 1975 if (timeout == 0) { 1976 printf("%s: bt_cmd: Timeout waiting for adapter ready, " 1977 "status = 0x%x\n", bt_name(bt), status); 1978 return (ETIMEDOUT); 1979 } 1980 1981 /* 1982 * Send the opcode followed by any necessary parameter bytes. 1983 */ 1984 bt_outb(bt, COMMAND_REG, opcode); 1985 1986 /* 1987 * Wait for up to 1sec for each byte of the the 1988 * parameter list sent to be sent. 1989 */ 1990 timeout = 10000; 1991 while (param_len && --timeout) { 1992 DELAY(100); 1993 s = splcam(); 1994 status = bt_inb(bt, STATUS_REG); 1995 intstat = bt_inb(bt, INTSTAT_REG); 1996 splx(s); 1997 1998 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1999 == (INTR_PENDING|CMD_COMPLETE)) { 2000 saved_status = status; 2001 cmd_complete = 1; 2002 break; 2003 } 2004 if (bt->command_cmp != 0) { 2005 saved_status = bt->latched_status; 2006 cmd_complete = 1; 2007 break; 2008 } 2009 if ((status & DATAIN_REG_READY) != 0) 2010 break; 2011 if ((status & CMD_REG_BUSY) == 0) { 2012 bt_outb(bt, COMMAND_REG, *params++); 2013 param_len--; 2014 timeout = 10000; 2015 } 2016 } 2017 if (timeout == 0) { 2018 printf("%s: bt_cmd: Timeout sending parameters, " 2019 "status = 0x%x\n", bt_name(bt), status); 2020 cmd_complete = 1; 2021 saved_status = status; 2022 error = ETIMEDOUT; 2023 } 2024 2025 /* 2026 * Wait for the command to complete. 2027 */ 2028 while (cmd_complete == 0 && --cmd_timeout) { 2029 2030 s = splcam(); 2031 status = bt_inb(bt, STATUS_REG); 2032 intstat = bt_inb(bt, INTSTAT_REG); 2033 /* 2034 * It may be that this command was issued with 2035 * controller interrupts disabled. We'll never 2036 * get to our command if an incoming mailbox 2037 * interrupt is pending, so take care of completed 2038 * mailbox commands by calling our interrupt handler. 2039 */ 2040 if ((intstat & (INTR_PENDING|IMB_LOADED)) 2041 == (INTR_PENDING|IMB_LOADED)) 2042 bt_intr(bt); 2043 splx(s); 2044 2045 if (bt->command_cmp != 0) { 2046 /* 2047 * Our interrupt handler saw CMD_COMPLETE 2048 * status before we did. 2049 */ 2050 cmd_complete = 1; 2051 saved_status = bt->latched_status; 2052 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 2053 == (INTR_PENDING|CMD_COMPLETE)) { 2054 /* 2055 * Our poll (in case interrupts are blocked) 2056 * saw the CMD_COMPLETE interrupt. 2057 */ 2058 cmd_complete = 1; 2059 saved_status = status; 2060 } else if (opcode == BOP_MODIFY_IO_ADDR 2061 && (status & CMD_REG_BUSY) == 0) { 2062 /* 2063 * The BOP_MODIFY_IO_ADDR does not issue a CMD_COMPLETE, 2064 * but it should update the status register. So, we 2065 * consider this command complete when the CMD_REG_BUSY 2066 * status clears. 2067 */ 2068 saved_status = status; 2069 cmd_complete = 1; 2070 } else if ((status & DATAIN_REG_READY) != 0) { 2071 u_int8_t data; 2072 2073 data = bt_inb(bt, DATAIN_REG); 2074 if (reply_len < reply_buf_size) { 2075 *reply_data++ = data; 2076 } else { 2077 printf("%s: bt_cmd - Discarded reply data byte " 2078 "for opcode 0x%x\n", bt_name(bt), 2079 opcode); 2080 } 2081 /* 2082 * Reset timeout to ensure at least a second 2083 * between response bytes. 2084 */ 2085 cmd_timeout = MAX(cmd_timeout, 10000); 2086 reply_len++; 2087 2088 } else if ((opcode == BOP_FETCH_LRAM) 2089 && (status & HA_READY) != 0) { 2090 saved_status = status; 2091 cmd_complete = 1; 2092 } 2093 DELAY(100); 2094 } 2095 if (cmd_timeout == 0) { 2096 printf("%s: bt_cmd: Timeout waiting for command (%x) " 2097 "to complete.\n%s: status = 0x%x, intstat = 0x%x, " 2098 "rlen %d\n", bt_name(bt), opcode, 2099 bt_name(bt), status, intstat, reply_len); 2100 error = (ETIMEDOUT); 2101 } 2102 2103 /* 2104 * Clear any pending interrupts. Block interrupts so our 2105 * interrupt handler is not re-entered. 2106 */ 2107 s = splcam(); 2108 bt_intr(bt); 2109 splx(s); 2110 2111 if (error != 0) 2112 return (error); 2113 2114 /* 2115 * If the command was rejected by the controller, tell the caller. 2116 */ 2117 if ((saved_status & CMD_INVALID) != 0) { 2118 /* 2119 * Some early adapters may not recover properly from 2120 * an invalid command. If it appears that the controller 2121 * has wedged (i.e. status was not cleared by our interrupt 2122 * reset above), perform a soft reset. 2123 */ 2124 if (bootverbose) 2125 printf("%s: Invalid Command 0x%x\n", bt_name(bt), 2126 opcode); 2127 DELAY(1000); 2128 status = bt_inb(bt, STATUS_REG); 2129 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 2130 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 2131 || (status & (HA_READY|INIT_REQUIRED)) 2132 != (HA_READY|INIT_REQUIRED)) { 2133 btreset(bt, /*hard_reset*/FALSE); 2134 } 2135 return (EINVAL); 2136 } 2137 2138 if (param_len > 0) { 2139 /* The controller did not accept the full argument list */ 2140 return (E2BIG); 2141 } 2142 2143 if (reply_len != reply_buf_size) { 2144 /* Too much or too little data received */ 2145 return (EMSGSIZE); 2146 } 2147 2148 /* We were successful */ 2149 return (0); 2150 } 2151 2152 static int 2153 btinitmboxes(struct bt_softc *bt) { 2154 init_32b_mbox_params_t init_mbox; 2155 int error; 2156 2157 bzero(bt->in_boxes, sizeof(bt_mbox_in_t) * bt->num_boxes); 2158 bzero(bt->out_boxes, sizeof(bt_mbox_out_t) * bt->num_boxes); 2159 bt->cur_inbox = bt->in_boxes; 2160 bt->last_inbox = bt->in_boxes + bt->num_boxes - 1; 2161 bt->cur_outbox = bt->out_boxes; 2162 bt->last_outbox = bt->out_boxes + bt->num_boxes - 1; 2163 2164 /* Tell the adapter about them */ 2165 init_mbox.num_boxes = bt->num_boxes; 2166 init_mbox.base_addr[0] = bt->mailbox_physbase & 0xFF; 2167 init_mbox.base_addr[1] = (bt->mailbox_physbase >> 8) & 0xFF; 2168 init_mbox.base_addr[2] = (bt->mailbox_physbase >> 16) & 0xFF; 2169 init_mbox.base_addr[3] = (bt->mailbox_physbase >> 24) & 0xFF; 2170 error = bt_cmd(bt, BOP_INITIALIZE_32BMBOX, (u_int8_t *)&init_mbox, 2171 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 2172 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 2173 2174 if (error != 0) 2175 printf("btinitmboxes: Initialization command failed\n"); 2176 else if (bt->strict_rr != 0) { 2177 /* 2178 * If the controller supports 2179 * strict round robin mode, 2180 * enable it 2181 */ 2182 u_int8_t param; 2183 2184 param = 0; 2185 error = bt_cmd(bt, BOP_ENABLE_STRICT_RR, ¶m, 1, 2186 /*reply_buf*/NULL, /*reply_len*/0, 2187 DEFAULT_CMD_TIMEOUT); 2188 2189 if (error != 0) { 2190 printf("btinitmboxes: Unable to enable strict RR\n"); 2191 error = 0; 2192 } else if (bootverbose) { 2193 printf("%s: Using Strict Round Robin Mailbox Mode\n", 2194 bt_name(bt)); 2195 } 2196 } 2197 2198 return (error); 2199 } 2200 2201 /* 2202 * Update the XPT's idea of the negotiated transfer 2203 * parameters for a particular target. 2204 */ 2205 static void 2206 btfetchtransinfo(struct bt_softc *bt, struct ccb_trans_settings *cts) 2207 { 2208 setup_data_t setup_info; 2209 u_int target; 2210 u_int targ_offset; 2211 u_int targ_mask; 2212 u_int sync_period; 2213 u_int sync_offset; 2214 u_int bus_width; 2215 int error; 2216 u_int8_t param; 2217 targ_syncinfo_t sync_info; 2218 #ifdef CAM_NEW_TRAN_CODE 2219 struct ccb_trans_settings_scsi *scsi = 2220 &cts->proto_specific.scsi; 2221 struct ccb_trans_settings_spi *spi = 2222 &cts->xport_specific.spi; 2223 2224 spi->valid = 0; 2225 scsi->valid = 0; 2226 #else 2227 2228 cts->valid = 0; 2229 #endif 2230 2231 target = cts->ccb_h.target_id; 2232 targ_offset = (target & 0x7); 2233 targ_mask = (0x01 << targ_offset); 2234 2235 /* 2236 * Inquire Setup Information. This command retreives the 2237 * Wide negotiation status for recent adapters as well as 2238 * the sync info for older models. 2239 */ 2240 param = sizeof(setup_info); 2241 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 2242 (u_int8_t*)&setup_info, sizeof(setup_info), 2243 DEFAULT_CMD_TIMEOUT); 2244 2245 if (error != 0) { 2246 printf("%s: btfetchtransinfo - Inquire Setup Info Failed %x\n", 2247 bt_name(bt), error); 2248 return; 2249 } 2250 2251 sync_info = (target < 8) ? setup_info.low_syncinfo[targ_offset] 2252 : setup_info.high_syncinfo[targ_offset]; 2253 2254 if (sync_info.sync == 0) 2255 sync_offset = 0; 2256 else 2257 sync_offset = sync_info.offset; 2258 2259 2260 bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2261 if (strcmp(bt->firmware_ver, "5.06L") >= 0) { 2262 u_int wide_active; 2263 2264 wide_active = 2265 (target < 8) ? (setup_info.low_wide_active & targ_mask) 2266 : (setup_info.high_wide_active & targ_mask); 2267 2268 if (wide_active) 2269 bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2270 } else if ((bt->wide_permitted & targ_mask) != 0) { 2271 struct ccb_getdev cgd; 2272 2273 /* 2274 * Prior to rev 5.06L, wide status isn't provided, 2275 * so we "guess" that wide transfers are in effect 2276 * if the user settings allow for wide and the inquiry 2277 * data for the device indicates that it can handle 2278 * wide transfers. 2279 */ 2280 xpt_setup_ccb(&cgd.ccb_h, cts->ccb_h.path, /*priority*/1); 2281 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 2282 xpt_action((union ccb *)&cgd); 2283 if ((cgd.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP 2284 && (cgd.inq_data.flags & SID_WBus16) != 0) 2285 bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2286 } 2287 2288 if (bt->firmware_ver[0] >= '3') { 2289 /* 2290 * For adapters that can do fast or ultra speeds, 2291 * use the more exact Target Sync Information command. 2292 */ 2293 target_sync_info_data_t sync_info; 2294 2295 param = sizeof(sync_info); 2296 error = bt_cmd(bt, BOP_TARG_SYNC_INFO, ¶m, /*paramlen*/1, 2297 (u_int8_t*)&sync_info, sizeof(sync_info), 2298 DEFAULT_CMD_TIMEOUT); 2299 2300 if (error != 0) { 2301 printf("%s: btfetchtransinfo - Inquire Sync " 2302 "Info Failed 0x%x\n", bt_name(bt), error); 2303 return; 2304 } 2305 sync_period = sync_info.sync_rate[target] * 100; 2306 } else { 2307 sync_period = 2000 + (500 * sync_info.period); 2308 } 2309 2310 #ifdef CAM_NEW_TRAN_CODE 2311 cts->protocol = PROTO_SCSI; 2312 cts->protocol_version = SCSI_REV_2; 2313 cts->transport = XPORT_SPI; 2314 cts->transport_version = 2; 2315 2316 spi->sync_period = sync_period; 2317 spi->valid |= CTS_SPI_VALID_SYNC_RATE; 2318 spi->sync_offset = sync_offset; 2319 spi->valid |= CTS_SPI_VALID_SYNC_OFFSET; 2320 2321 spi->valid |= CTS_SPI_VALID_BUS_WIDTH; 2322 spi->bus_width = bus_width; 2323 2324 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 2325 scsi->valid = CTS_SCSI_VALID_TQ; 2326 spi->valid |= CTS_SPI_VALID_DISC; 2327 } else 2328 scsi->valid = 0; 2329 2330 #else 2331 /* Convert ns value to standard SCSI sync rate */ 2332 if (cts->sync_offset != 0) 2333 cts->sync_period = scsi_calc_syncparam(sync_period); 2334 else 2335 cts->sync_period = 0; 2336 cts->sync_offset = sync_offset; 2337 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2338 2339 cts->valid = CCB_TRANS_SYNC_RATE_VALID 2340 | CCB_TRANS_SYNC_OFFSET_VALID 2341 | CCB_TRANS_BUS_WIDTH_VALID; 2342 2343 #endif 2344 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 2345 } 2346 2347 static void 2348 btmapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2349 { 2350 struct bt_softc* bt; 2351 2352 bt = (struct bt_softc*)arg; 2353 bt->mailbox_physbase = segs->ds_addr; 2354 } 2355 2356 static void 2357 btmapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2358 { 2359 struct bt_softc* bt; 2360 2361 bt = (struct bt_softc*)arg; 2362 bt->bt_ccb_physbase = segs->ds_addr; 2363 } 2364 2365 static void 2366 btmapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2367 { 2368 2369 struct bt_softc* bt; 2370 2371 bt = (struct bt_softc*)arg; 2372 SLIST_FIRST(&bt->sg_maps)->sg_physaddr = segs->ds_addr; 2373 } 2374 2375 static void 2376 btpoll(struct cam_sim *sim) 2377 { 2378 bt_intr(cam_sim_softc(sim)); 2379 } 2380 2381 void 2382 bttimeout(void *arg) 2383 { 2384 struct bt_ccb *bccb; 2385 union ccb *ccb; 2386 struct bt_softc *bt; 2387 int s; 2388 2389 bccb = (struct bt_ccb *)arg; 2390 ccb = bccb->ccb; 2391 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 2392 xpt_print_path(ccb->ccb_h.path); 2393 printf("CCB %p - timed out\n", (void *)bccb); 2394 2395 s = splcam(); 2396 2397 if ((bccb->flags & BCCB_ACTIVE) == 0) { 2398 xpt_print_path(ccb->ccb_h.path); 2399 printf("CCB %p - timed out CCB already completed\n", 2400 (void *)bccb); 2401 splx(s); 2402 return; 2403 } 2404 2405 /* 2406 * In order to simplify the recovery process, we ask the XPT 2407 * layer to halt the queue of new transactions and we traverse 2408 * the list of pending CCBs and remove their timeouts. This 2409 * means that the driver attempts to clear only one error 2410 * condition at a time. In general, timeouts that occur 2411 * close together are related anyway, so there is no benefit 2412 * in attempting to handle errors in parrallel. Timeouts will 2413 * be reinstated when the recovery process ends. 2414 */ 2415 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) { 2416 struct ccb_hdr *ccb_h; 2417 2418 if ((bccb->flags & BCCB_RELEASE_SIMQ) == 0) { 2419 xpt_freeze_simq(bt->sim, /*count*/1); 2420 bccb->flags |= BCCB_RELEASE_SIMQ; 2421 } 2422 2423 ccb_h = LIST_FIRST(&bt->pending_ccbs); 2424 while (ccb_h != NULL) { 2425 struct bt_ccb *pending_bccb; 2426 2427 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 2428 untimeout(bttimeout, pending_bccb, ccb_h->timeout_ch); 2429 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 2430 } 2431 } 2432 2433 if ((bccb->flags & BCCB_DEVICE_RESET) != 0 2434 || bt->cur_outbox->action_code != BMBO_FREE 2435 || ((bccb->hccb.tag_enable == TRUE) 2436 && (bt->firmware_ver[0] < '5'))) { 2437 /* 2438 * Try a full host adapter/SCSI bus reset. 2439 * We do this only if we have already attempted 2440 * to clear the condition with a BDR, or we cannot 2441 * attempt a BDR for lack of mailbox resources 2442 * or because of faulty firmware. It turns out 2443 * that firmware versions prior to 5.xx treat BDRs 2444 * as untagged commands that cannot be sent until 2445 * all outstanding tagged commands have been processed. 2446 * This makes it somewhat difficult to use a BDR to 2447 * clear up a problem with an uncompleted tagged command. 2448 */ 2449 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 2450 btreset(bt, /*hardreset*/TRUE); 2451 printf("%s: No longer in timeout\n", bt_name(bt)); 2452 } else { 2453 /* 2454 * Send a Bus Device Reset message: 2455 * The target that is holding up the bus may not 2456 * be the same as the one that triggered this timeout 2457 * (different commands have different timeout lengths), 2458 * but we have no way of determining this from our 2459 * timeout handler. Our strategy here is to queue a 2460 * BDR message to the target of the timed out command. 2461 * If this fails, we'll get another timeout 2 seconds 2462 * later which will attempt a bus reset. 2463 */ 2464 bccb->flags |= BCCB_DEVICE_RESET; 2465 ccb->ccb_h.timeout_ch = 2466 timeout(bttimeout, (caddr_t)bccb, 2 * hz); 2467 2468 bt->recovery_bccb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 2469 2470 /* No Data Transfer */ 2471 bt->recovery_bccb->hccb.datain = TRUE; 2472 bt->recovery_bccb->hccb.dataout = TRUE; 2473 bt->recovery_bccb->hccb.btstat = 0; 2474 bt->recovery_bccb->hccb.sdstat = 0; 2475 bt->recovery_bccb->hccb.target_id = ccb->ccb_h.target_id; 2476 2477 /* Tell the adapter about this command */ 2478 bt->cur_outbox->ccb_addr = btccbvtop(bt, bt->recovery_bccb); 2479 bt->cur_outbox->action_code = BMBO_START; 2480 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 2481 btnextoutbox(bt); 2482 } 2483 2484 splx(s); 2485 } 2486 2487 MODULE_VERSION(bt, 1); 2488 MODULE_DEPEND(bt, cam, 1, 1, 1);
Cache object: 712c40c22d0b422a7ecc831150d00753
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