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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/6.1/sys/dev/buslogic/bt.c 146734 2005-05-29 04:42:30Z nyan $"); 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/mutex.h> 51 #include <sys/sysctl.h> 52 #include <sys/bus.h> 53 54 #include <machine/bus.h> 55 #include <sys/rman.h> 56 57 #include <cam/cam.h> 58 #include <cam/cam_ccb.h> 59 #include <cam/cam_sim.h> 60 #include <cam/cam_xpt_sim.h> 61 #include <cam/cam_debug.h> 62 63 #include <cam/scsi/scsi_message.h> 64 65 #include <vm/vm.h> 66 #include <vm/pmap.h> 67 68 #include <dev/buslogic/btreg.h> 69 70 /* MailBox Management functions */ 71 static __inline void btnextinbox(struct bt_softc *bt); 72 static __inline void btnextoutbox(struct bt_softc *bt); 73 74 static __inline void 75 btnextinbox(struct bt_softc *bt) 76 { 77 if (bt->cur_inbox == bt->last_inbox) 78 bt->cur_inbox = bt->in_boxes; 79 else 80 bt->cur_inbox++; 81 } 82 83 static __inline void 84 btnextoutbox(struct bt_softc *bt) 85 { 86 if (bt->cur_outbox == bt->last_outbox) 87 bt->cur_outbox = bt->out_boxes; 88 else 89 bt->cur_outbox++; 90 } 91 92 /* CCB Mangement functions */ 93 static __inline u_int32_t btccbvtop(struct bt_softc *bt, 94 struct bt_ccb *bccb); 95 static __inline struct bt_ccb* btccbptov(struct bt_softc *bt, 96 u_int32_t ccb_addr); 97 static __inline u_int32_t btsensepaddr(struct bt_softc *bt, 98 struct bt_ccb *bccb); 99 static __inline struct scsi_sense_data* btsensevaddr(struct bt_softc *bt, 100 struct bt_ccb *bccb); 101 102 static __inline u_int32_t 103 btccbvtop(struct bt_softc *bt, struct bt_ccb *bccb) 104 { 105 return (bt->bt_ccb_physbase 106 + (u_int32_t)((caddr_t)bccb - (caddr_t)bt->bt_ccb_array)); 107 } 108 109 static __inline struct bt_ccb * 110 btccbptov(struct bt_softc *bt, u_int32_t ccb_addr) 111 { 112 return (bt->bt_ccb_array + 113 ((struct bt_ccb*)(uintptr_t)ccb_addr - (struct bt_ccb*)(uintptr_t)bt->bt_ccb_physbase)); 114 } 115 116 static __inline u_int32_t 117 btsensepaddr(struct bt_softc *bt, struct bt_ccb *bccb) 118 { 119 u_int index; 120 121 index = (u_int)(bccb - bt->bt_ccb_array); 122 return (bt->sense_buffers_physbase 123 + (index * sizeof(struct scsi_sense_data))); 124 } 125 126 static __inline struct scsi_sense_data * 127 btsensevaddr(struct bt_softc *bt, struct bt_ccb *bccb) 128 { 129 u_int index; 130 131 index = (u_int)(bccb - bt->bt_ccb_array); 132 return (bt->sense_buffers + index); 133 } 134 135 static __inline struct bt_ccb* btgetccb(struct bt_softc *bt); 136 static __inline void btfreeccb(struct bt_softc *bt, 137 struct bt_ccb *bccb); 138 static void btallocccbs(struct bt_softc *bt); 139 static bus_dmamap_callback_t btexecuteccb; 140 static void btdone(struct bt_softc *bt, struct bt_ccb *bccb, 141 bt_mbi_comp_code_t comp_code); 142 143 /* Host adapter command functions */ 144 static int btreset(struct bt_softc* bt, int hard_reset); 145 146 /* Initialization functions */ 147 static int btinitmboxes(struct bt_softc *bt); 148 static bus_dmamap_callback_t btmapmboxes; 149 static bus_dmamap_callback_t btmapccbs; 150 static bus_dmamap_callback_t btmapsgs; 151 152 /* Transfer Negotiation Functions */ 153 static void btfetchtransinfo(struct bt_softc *bt, 154 struct ccb_trans_settings *cts); 155 156 /* CAM SIM entry points */ 157 #define ccb_bccb_ptr spriv_ptr0 158 #define ccb_bt_ptr spriv_ptr1 159 static void btaction(struct cam_sim *sim, union ccb *ccb); 160 static void btpoll(struct cam_sim *sim); 161 162 /* Our timeout handler */ 163 timeout_t bttimeout; 164 165 u_long bt_unit = 0; 166 167 /* 168 * XXX 169 * Do our own re-probe protection until a configuration 170 * manager can do it for us. This ensures that we don't 171 * reprobe a card already found by the EISA or PCI probes. 172 */ 173 struct bt_isa_port bt_isa_ports[] = 174 { 175 { 0x130, 0, 4 }, 176 { 0x134, 0, 5 }, 177 { 0x230, 0, 2 }, 178 { 0x234, 0, 3 }, 179 { 0x330, 0, 0 }, 180 { 0x334, 0, 1 } 181 }; 182 183 /* 184 * I/O ports listed in the order enumerated by the 185 * card for certain op codes. 186 */ 187 u_int16_t bt_board_ports[] = 188 { 189 0x330, 190 0x334, 191 0x230, 192 0x234, 193 0x130, 194 0x134 195 }; 196 197 /* Exported functions */ 198 void 199 bt_init_softc(device_t dev, struct resource *port, 200 struct resource *irq, struct resource *drq) 201 { 202 struct bt_softc *bt = device_get_softc(dev); 203 204 SLIST_INIT(&bt->free_bt_ccbs); 205 LIST_INIT(&bt->pending_ccbs); 206 SLIST_INIT(&bt->sg_maps); 207 bt->dev = dev; 208 bt->unit = device_get_unit(dev); 209 bt->port = port; 210 bt->irq = irq; 211 bt->drq = drq; 212 bt->tag = rman_get_bustag(port); 213 bt->bsh = rman_get_bushandle(port); 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 bus_dmamap_destroy(bt->ccb_dmat, bt->ccb_dmamap); 251 /* FALLTHROUGH */ 252 case 5: 253 bus_dma_tag_destroy(bt->ccb_dmat); 254 /* FALLTHROUGH */ 255 case 4: 256 bus_dmamap_unload(bt->mailbox_dmat, bt->mailbox_dmamap); 257 /* FALLTHROUGH */ 258 case 3: 259 bus_dmamem_free(bt->mailbox_dmat, bt->in_boxes, 260 bt->mailbox_dmamap); 261 bus_dmamap_destroy(bt->mailbox_dmat, bt->mailbox_dmamap); 262 /* FALLTHROUGH */ 263 case 2: 264 bus_dma_tag_destroy(bt->buffer_dmat); 265 /* FALLTHROUGH */ 266 case 1: 267 bus_dma_tag_destroy(bt->mailbox_dmat); 268 /* FALLTHROUGH */ 269 case 0: 270 break; 271 } 272 } 273 274 int 275 bt_port_probe(device_t dev, struct bt_probe_info *info) 276 { 277 struct bt_softc *bt = device_get_softc(dev); 278 config_data_t config_data; 279 int error; 280 281 /* See if there is really a card present */ 282 if (bt_probe(dev) || bt_fetch_adapter_info(dev)) 283 return(1); 284 285 /* 286 * Determine our IRQ, and DMA settings and 287 * export them to the configuration system. 288 */ 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 if (error != 0) { 293 printf("bt_port_probe: Could not determine IRQ or DMA " 294 "settings for adapter.\n"); 295 return (1); 296 } 297 298 if (bt->model[0] == '5') { 299 /* DMA settings only make sense for ISA cards */ 300 switch (config_data.dma_chan) { 301 case DMA_CHAN_5: 302 info->drq = 5; 303 break; 304 case DMA_CHAN_6: 305 info->drq = 6; 306 break; 307 case DMA_CHAN_7: 308 info->drq = 7; 309 break; 310 default: 311 printf("bt_port_probe: Invalid DMA setting " 312 "detected for adapter.\n"); 313 return (1); 314 } 315 } else { 316 /* VL/EISA/PCI DMA */ 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 if ((error = btreset(bt, /*hard_reset*/TRUE)) != 0) { 384 if (bootverbose) 385 device_printf(dev, "Failed Reset\n"); 386 return (ENXIO); 387 } 388 389 param = sizeof(esetup_info); 390 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, ¶m, /*parmlen*/1, 391 (u_int8_t*)&esetup_info, sizeof(esetup_info), 392 DEFAULT_CMD_TIMEOUT); 393 if (error != 0) { 394 return (ENXIO); 395 } 396 397 return (0); 398 } 399 400 /* 401 * Pull the boards setup information and record it in our softc. 402 */ 403 int 404 bt_fetch_adapter_info(device_t dev) 405 { 406 struct bt_softc *bt = device_get_softc(dev); 407 board_id_data_t board_id; 408 esetup_info_data_t esetup_info; 409 config_data_t config_data; 410 int error; 411 u_int8_t length_param; 412 413 /* First record the firmware version */ 414 error = bt_cmd(bt, BOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0, 415 (u_int8_t*)&board_id, sizeof(board_id), 416 DEFAULT_CMD_TIMEOUT); 417 if (error != 0) { 418 device_printf(dev, "bt_fetch_adapter_info - Failed Get Board Info\n"); 419 return (error); 420 } 421 bt->firmware_ver[0] = board_id.firmware_rev_major; 422 bt->firmware_ver[1] = '.'; 423 bt->firmware_ver[2] = board_id.firmware_rev_minor; 424 bt->firmware_ver[3] = '\0'; 425 426 /* 427 * Depending on the firmware major and minor version, 428 * we may be able to fetch additional minor version info. 429 */ 430 if (bt->firmware_ver[0] > '') { 431 432 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_3DIG, NULL, /*parmlen*/0, 433 (u_int8_t*)&bt->firmware_ver[3], 1, 434 DEFAULT_CMD_TIMEOUT); 435 if (error != 0) { 436 device_printf(dev, 437 "bt_fetch_adapter_info - Failed Get " 438 "Firmware 3rd Digit\n"); 439 return (error); 440 } 441 if (bt->firmware_ver[3] == ' ') 442 bt->firmware_ver[3] = '\0'; 443 bt->firmware_ver[4] = '\0'; 444 } 445 446 if (strcmp(bt->firmware_ver, "3.3") >= 0) { 447 448 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_4DIG, NULL, /*parmlen*/0, 449 (u_int8_t*)&bt->firmware_ver[4], 1, 450 DEFAULT_CMD_TIMEOUT); 451 if (error != 0) { 452 device_printf(dev, 453 "bt_fetch_adapter_info - Failed Get " 454 "Firmware 4th Digit\n"); 455 return (error); 456 } 457 if (bt->firmware_ver[4] == ' ') 458 bt->firmware_ver[4] = '\0'; 459 bt->firmware_ver[5] = '\0'; 460 } 461 462 /* 463 * Some boards do not handle the "recently documented" 464 * Inquire Board Model Number command correctly or do not give 465 * exact information. Use the Firmware and Extended Setup 466 * information in these cases to come up with the right answer. 467 * The major firmware revision number indicates: 468 * 469 * 5.xx BusLogic "W" Series Host Adapters: 470 * BT-948/958/958D 471 * 4.xx BusLogic "C" Series Host Adapters: 472 * BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF 473 * 3.xx BusLogic "S" Series Host Adapters: 474 * BT-747S/747D/757S/757D/445S/545S/542D 475 * BT-542B/742A (revision H) 476 * 2.xx BusLogic "A" Series Host Adapters: 477 * BT-542B/742A (revision G and below) 478 * 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter 479 */ 480 length_param = sizeof(esetup_info); 481 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, &length_param, /*parmlen*/1, 482 (u_int8_t*)&esetup_info, sizeof(esetup_info), 483 DEFAULT_CMD_TIMEOUT); 484 if (error != 0) { 485 return (error); 486 } 487 488 bt->bios_addr = esetup_info.bios_addr << 12; 489 490 bt->mailbox_addrlimit = BUS_SPACE_MAXADDR; 491 if (esetup_info.bus_type == 'A' 492 && bt->firmware_ver[0] == '2') { 493 snprintf(bt->model, sizeof(bt->model), "542B"); 494 } else if (esetup_info.bus_type == 'E' 495 && bt->firmware_ver[0] == '2') { 496 497 /* 498 * The 742A seems to object if its mailboxes are 499 * allocated above the 16MB mark. 500 */ 501 bt->mailbox_addrlimit = BUS_SPACE_MAXADDR_24BIT; 502 snprintf(bt->model, sizeof(bt->model), "742A"); 503 } else if (esetup_info.bus_type == 'E' 504 && bt->firmware_ver[0] == '') { 505 /* AMI FastDisk EISA Series 441 0.x */ 506 snprintf(bt->model, sizeof(bt->model), "747A"); 507 } else { 508 ha_model_data_t model_data; 509 int i; 510 511 length_param = sizeof(model_data); 512 error = bt_cmd(bt, BOP_INQUIRE_MODEL, &length_param, 1, 513 (u_int8_t*)&model_data, sizeof(model_data), 514 DEFAULT_CMD_TIMEOUT); 515 if (error != 0) { 516 device_printf(dev, 517 "bt_fetch_adapter_info - Failed Inquire " 518 "Model Number\n"); 519 return (error); 520 } 521 for (i = 0; i < sizeof(model_data.ascii_model); i++) { 522 bt->model[i] = model_data.ascii_model[i]; 523 if (bt->model[i] == ' ') 524 break; 525 } 526 bt->model[i] = '\0'; 527 } 528 529 bt->level_trigger_ints = esetup_info.level_trigger_ints ? 1 : 0; 530 531 /* SG element limits */ 532 bt->max_sg = esetup_info.max_sg; 533 534 /* Set feature flags */ 535 bt->wide_bus = esetup_info.wide_bus; 536 bt->diff_bus = esetup_info.diff_bus; 537 bt->ultra_scsi = esetup_info.ultra_scsi; 538 539 if ((bt->firmware_ver[0] == '5') 540 || (bt->firmware_ver[0] == '4' && bt->wide_bus)) 541 bt->extended_lun = TRUE; 542 543 bt->strict_rr = (strcmp(bt->firmware_ver, "3.31") >= 0); 544 545 bt->extended_trans = 546 ((bt_inb(bt, GEOMETRY_REG) & EXTENDED_TRANSLATION) != 0); 547 548 /* 549 * Determine max CCB count and whether tagged queuing is 550 * available based on controller type. Tagged queuing 551 * only works on 'W' series adapters, 'C' series adapters 552 * with firmware of rev 4.42 and higher, and 'S' series 553 * adapters with firmware of rev 3.35 and higher. The 554 * maximum CCB counts are as follows: 555 * 556 * 192 BT-948/958/958D 557 * 100 BT-946C/956C/956CD/747C/757C/757CD/445C 558 * 50 BT-545C/540CF 559 * 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A 560 */ 561 if (bt->firmware_ver[0] == '5') { 562 bt->max_ccbs = 192; 563 bt->tag_capable = TRUE; 564 } else if (bt->firmware_ver[0] == '4') { 565 if (bt->model[0] == '5') 566 bt->max_ccbs = 50; 567 else 568 bt->max_ccbs = 100; 569 bt->tag_capable = (strcmp(bt->firmware_ver, "4.22") >= 0); 570 } else { 571 bt->max_ccbs = 30; 572 if (bt->firmware_ver[0] == '3' 573 && (strcmp(bt->firmware_ver, "3.35") >= 0)) 574 bt->tag_capable = TRUE; 575 else 576 bt->tag_capable = FALSE; 577 } 578 579 if (bt->tag_capable != FALSE) 580 bt->tags_permitted = ALL_TARGETS; 581 582 /* Determine Sync/Wide/Disc settings */ 583 if (bt->firmware_ver[0] >= '4') { 584 auto_scsi_data_t auto_scsi_data; 585 fetch_lram_params_t fetch_lram_params; 586 int error; 587 588 /* 589 * These settings are stored in the 590 * AutoSCSI data in LRAM of 'W' and 'C' 591 * adapters. 592 */ 593 fetch_lram_params.offset = AUTO_SCSI_BYTE_OFFSET; 594 fetch_lram_params.response_len = sizeof(auto_scsi_data); 595 error = bt_cmd(bt, BOP_FETCH_LRAM, 596 (u_int8_t*)&fetch_lram_params, 597 sizeof(fetch_lram_params), 598 (u_int8_t*)&auto_scsi_data, 599 sizeof(auto_scsi_data), DEFAULT_CMD_TIMEOUT); 600 601 if (error != 0) { 602 device_printf(dev, 603 "bt_fetch_adapter_info - Failed " 604 "Get Auto SCSI Info\n"); 605 return (error); 606 } 607 608 bt->disc_permitted = auto_scsi_data.low_disc_permitted 609 | (auto_scsi_data.high_disc_permitted << 8); 610 bt->sync_permitted = auto_scsi_data.low_sync_permitted 611 | (auto_scsi_data.high_sync_permitted << 8); 612 bt->fast_permitted = auto_scsi_data.low_fast_permitted 613 | (auto_scsi_data.high_fast_permitted << 8); 614 bt->ultra_permitted = auto_scsi_data.low_ultra_permitted 615 | (auto_scsi_data.high_ultra_permitted << 8); 616 bt->wide_permitted = auto_scsi_data.low_wide_permitted 617 | (auto_scsi_data.high_wide_permitted << 8); 618 619 if (bt->ultra_scsi == FALSE) 620 bt->ultra_permitted = 0; 621 622 if (bt->wide_bus == FALSE) 623 bt->wide_permitted = 0; 624 } else { 625 /* 626 * 'S' and 'A' series have this information in the setup 627 * information structure. 628 */ 629 setup_data_t setup_info; 630 631 length_param = sizeof(setup_info); 632 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, &length_param, 633 /*paramlen*/1, (u_int8_t*)&setup_info, 634 sizeof(setup_info), DEFAULT_CMD_TIMEOUT); 635 636 if (error != 0) { 637 device_printf(dev, 638 "bt_fetch_adapter_info - Failed " 639 "Get Setup Info\n"); 640 return (error); 641 } 642 643 if (setup_info.initiate_sync != 0) { 644 bt->sync_permitted = ALL_TARGETS; 645 646 if (bt->model[0] == '7') { 647 if (esetup_info.sync_neg10MB != 0) 648 bt->fast_permitted = ALL_TARGETS; 649 if (strcmp(bt->model, "757") == 0) 650 bt->wide_permitted = ALL_TARGETS; 651 } 652 } 653 bt->disc_permitted = ALL_TARGETS; 654 } 655 656 /* We need as many mailboxes as we can have ccbs */ 657 bt->num_boxes = bt->max_ccbs; 658 659 /* Determine our SCSI ID */ 660 661 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 662 (u_int8_t*)&config_data, sizeof(config_data), 663 DEFAULT_CMD_TIMEOUT); 664 if (error != 0) { 665 device_printf(dev, 666 "bt_fetch_adapter_info - Failed Get Config\n"); 667 return (error); 668 } 669 bt->scsi_id = config_data.scsi_id; 670 671 return (0); 672 } 673 674 /* 675 * Start the board, ready for normal operation 676 */ 677 int 678 bt_init(device_t dev) 679 { 680 struct bt_softc *bt = device_get_softc(dev); 681 682 /* Announce the Adapter */ 683 device_printf(dev, "BT-%s FW Rev. %s ", bt->model, bt->firmware_ver); 684 685 if (bt->ultra_scsi != 0) 686 printf("Ultra "); 687 688 if (bt->wide_bus != 0) 689 printf("Wide "); 690 else 691 printf("Narrow "); 692 693 if (bt->diff_bus != 0) 694 printf("Diff "); 695 696 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", bt->scsi_id, 697 bt->max_ccbs); 698 699 /* 700 * Create our DMA tags. These tags define the kinds of device 701 * accessible memory allocations and memory mappings we will 702 * need to perform during normal operation. 703 * 704 * Unless we need to further restrict the allocation, we rely 705 * on the restrictions of the parent dmat, hence the common 706 * use of MAXADDR and MAXSIZE. 707 */ 708 709 /* DMA tag for mapping buffers into device visible space. */ 710 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 711 /* alignment */ 1, 712 /* boundary */ 0, 713 /* lowaddr */ BUS_SPACE_MAXADDR, 714 /* highaddr */ BUS_SPACE_MAXADDR, 715 /* filter */ NULL, 716 /* filterarg */ NULL, 717 /* maxsize */ MAXBSIZE, 718 /* nsegments */ BT_NSEG, 719 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 720 /* flags */ BUS_DMA_ALLOCNOW, 721 /* lockfunc */ busdma_lock_mutex, 722 /* lockarg */ &Giant, 723 &bt->buffer_dmat) != 0) { 724 goto error_exit; 725 } 726 727 bt->init_level++; 728 /* DMA tag for our mailboxes */ 729 if (bus_dma_tag_create( /* parent */ bt->parent_dmat, 730 /* alignment */ 1, 731 /* boundary */ 0, 732 /* lowaddr */ bt->mailbox_addrlimit, 733 /* highaddr */ BUS_SPACE_MAXADDR, 734 /* filter */ NULL, 735 /* filterarg */ NULL, 736 /* maxsize */ bt->num_boxes * 737 (sizeof(bt_mbox_in_t) + 738 sizeof(bt_mbox_out_t)), 739 /* nsegments */ 1, 740 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 741 /* flags */ 0, 742 /* lockfunc */ busdma_lock_mutex, 743 /* lockarg */ &Giant, 744 &bt->mailbox_dmat) != 0) { 745 goto error_exit; 746 } 747 748 bt->init_level++; 749 750 /* Allocation for our mailboxes */ 751 if (bus_dmamem_alloc(bt->mailbox_dmat, (void **)&bt->out_boxes, 752 BUS_DMA_NOWAIT, &bt->mailbox_dmamap) != 0) { 753 goto error_exit; 754 } 755 756 bt->init_level++; 757 758 /* And permanently map them */ 759 bus_dmamap_load(bt->mailbox_dmat, bt->mailbox_dmamap, 760 bt->out_boxes, 761 bt->num_boxes * (sizeof(bt_mbox_in_t) 762 + sizeof(bt_mbox_out_t)), 763 btmapmboxes, bt, /*flags*/0); 764 765 bt->init_level++; 766 767 bt->in_boxes = (bt_mbox_in_t *)&bt->out_boxes[bt->num_boxes]; 768 769 btinitmboxes(bt); 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 */ busdma_lock_mutex, 785 /* lockarg */ &Giant, 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 */ busdma_lock_mutex, 821 /* lockarg */ &Giant, 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 probe) 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, bt->unit, 876 2, tagged_dev_openings, devq); 877 if (bt->sim == NULL) { 878 cam_simq_free(devq); 879 return (ENOMEM); 880 } 881 882 if (xpt_bus_register(bt->sim, 0) != CAM_SUCCESS) { 883 cam_sim_free(bt->sim, /*free_devq*/TRUE); 884 return (ENXIO); 885 } 886 887 if (xpt_create_path(&bt->path, /*periph*/NULL, 888 cam_sim_path(bt->sim), CAM_TARGET_WILDCARD, 889 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 890 xpt_bus_deregister(cam_sim_path(bt->sim)); 891 cam_sim_free(bt->sim, /*free_devq*/TRUE); 892 return (ENXIO); 893 } 894 895 /* 896 * Setup interrupt. 897 */ 898 error = bus_setup_intr(dev, bt->irq, INTR_TYPE_CAM|INTR_ENTROPY, 899 bt_intr, bt, &bt->ih); 900 if (error) { 901 device_printf(dev, "bus_setup_intr() failed: %d\n", error); 902 return (error); 903 } 904 905 return (0); 906 } 907 908 int 909 bt_check_probed_iop(u_int ioport) 910 { 911 u_int i; 912 913 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 914 if (bt_isa_ports[i].addr == ioport) { 915 if (bt_isa_ports[i].probed != 0) 916 return (1); 917 else { 918 return (0); 919 } 920 } 921 } 922 return (1); 923 } 924 925 void 926 bt_mark_probed_bio(isa_compat_io_t port) 927 { 928 if (port < BIO_DISABLED) 929 bt_mark_probed_iop(bt_board_ports[port]); 930 } 931 932 void 933 bt_mark_probed_iop(u_int ioport) 934 { 935 u_int i; 936 937 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 938 if (ioport == bt_isa_ports[i].addr) { 939 bt_isa_ports[i].probed = 1; 940 break; 941 } 942 } 943 } 944 945 void 946 bt_find_probe_range(int ioport, int *port_index, int *max_port_index) 947 { 948 if (ioport > 0) { 949 int i; 950 951 for (i = 0;i < BT_NUM_ISAPORTS; i++) 952 if (ioport <= bt_isa_ports[i].addr) 953 break; 954 if ((i >= BT_NUM_ISAPORTS) 955 || (ioport != bt_isa_ports[i].addr)) { 956 printf( 957 "bt_find_probe_range: Invalid baseport of 0x%x specified.\n" 958 "bt_find_probe_range: Nearest valid baseport is 0x%x.\n" 959 "bt_find_probe_range: Failing probe.\n", 960 ioport, 961 (i < BT_NUM_ISAPORTS) 962 ? bt_isa_ports[i].addr 963 : bt_isa_ports[BT_NUM_ISAPORTS - 1].addr); 964 *port_index = *max_port_index = -1; 965 return; 966 } 967 *port_index = *max_port_index = bt_isa_ports[i].bio; 968 } else { 969 *port_index = 0; 970 *max_port_index = BT_NUM_ISAPORTS - 1; 971 } 972 } 973 974 int 975 bt_iop_from_bio(isa_compat_io_t bio_index) 976 { 977 if (bio_index >= 0 && bio_index < BT_NUM_ISAPORTS) 978 return (bt_board_ports[bio_index]); 979 return (-1); 980 } 981 982 983 static void 984 btallocccbs(struct bt_softc *bt) 985 { 986 struct bt_ccb *next_ccb; 987 struct sg_map_node *sg_map; 988 bus_addr_t physaddr; 989 bt_sg_t *segs; 990 int newcount; 991 int i; 992 993 if (bt->num_ccbs >= bt->max_ccbs) 994 /* Can't allocate any more */ 995 return; 996 997 next_ccb = &bt->bt_ccb_array[bt->num_ccbs]; 998 999 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT); 1000 1001 if (sg_map == NULL) 1002 goto error_exit; 1003 1004 /* Allocate S/G space for the next batch of CCBS */ 1005 if (bus_dmamem_alloc(bt->sg_dmat, (void **)&sg_map->sg_vaddr, 1006 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 1007 free(sg_map, M_DEVBUF); 1008 goto error_exit; 1009 } 1010 1011 SLIST_INSERT_HEAD(&bt->sg_maps, sg_map, links); 1012 1013 bus_dmamap_load(bt->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 1014 PAGE_SIZE, btmapsgs, bt, /*flags*/0); 1015 1016 segs = sg_map->sg_vaddr; 1017 physaddr = sg_map->sg_physaddr; 1018 1019 newcount = (PAGE_SIZE / (BT_NSEG * sizeof(bt_sg_t))); 1020 for (i = 0; bt->num_ccbs < bt->max_ccbs && i < newcount; i++) { 1021 int error; 1022 1023 next_ccb->sg_list = segs; 1024 next_ccb->sg_list_phys = physaddr; 1025 next_ccb->flags = BCCB_FREE; 1026 error = bus_dmamap_create(bt->buffer_dmat, /*flags*/0, 1027 &next_ccb->dmamap); 1028 if (error != 0) 1029 break; 1030 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, next_ccb, links); 1031 segs += BT_NSEG; 1032 physaddr += (BT_NSEG * sizeof(bt_sg_t)); 1033 next_ccb++; 1034 bt->num_ccbs++; 1035 } 1036 1037 /* Reserve a CCB for error recovery */ 1038 if (bt->recovery_bccb == NULL) { 1039 bt->recovery_bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1040 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1041 } 1042 1043 if (SLIST_FIRST(&bt->free_bt_ccbs) != NULL) 1044 return; 1045 1046 error_exit: 1047 device_printf(bt->dev, "Can't malloc BCCBs\n"); 1048 } 1049 1050 static __inline void 1051 btfreeccb(struct bt_softc *bt, struct bt_ccb *bccb) 1052 { 1053 int s; 1054 1055 s = splcam(); 1056 if ((bccb->flags & BCCB_ACTIVE) != 0) 1057 LIST_REMOVE(&bccb->ccb->ccb_h, sim_links.le); 1058 if (bt->resource_shortage != 0 1059 && (bccb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 1060 bccb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1061 bt->resource_shortage = FALSE; 1062 } 1063 bccb->flags = BCCB_FREE; 1064 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, bccb, links); 1065 bt->active_ccbs--; 1066 splx(s); 1067 } 1068 1069 static __inline struct bt_ccb* 1070 btgetccb(struct bt_softc *bt) 1071 { 1072 struct bt_ccb* bccb; 1073 int s; 1074 1075 s = splcam(); 1076 if ((bccb = SLIST_FIRST(&bt->free_bt_ccbs)) != NULL) { 1077 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1078 bt->active_ccbs++; 1079 } else { 1080 btallocccbs(bt); 1081 bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1082 if (bccb != NULL) { 1083 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1084 bt->active_ccbs++; 1085 } 1086 } 1087 splx(s); 1088 1089 return (bccb); 1090 } 1091 1092 static void 1093 btaction(struct cam_sim *sim, union ccb *ccb) 1094 { 1095 struct bt_softc *bt; 1096 1097 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("btaction\n")); 1098 1099 bt = (struct bt_softc *)cam_sim_softc(sim); 1100 1101 switch (ccb->ccb_h.func_code) { 1102 /* Common cases first */ 1103 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 1104 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 1105 { 1106 struct bt_ccb *bccb; 1107 struct bt_hccb *hccb; 1108 1109 /* 1110 * get a bccb to use. 1111 */ 1112 if ((bccb = btgetccb(bt)) == NULL) { 1113 int s; 1114 1115 s = splcam(); 1116 bt->resource_shortage = TRUE; 1117 splx(s); 1118 xpt_freeze_simq(bt->sim, /*count*/1); 1119 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1120 xpt_done(ccb); 1121 return; 1122 } 1123 1124 hccb = &bccb->hccb; 1125 1126 /* 1127 * So we can find the BCCB when an abort is requested 1128 */ 1129 bccb->ccb = ccb; 1130 ccb->ccb_h.ccb_bccb_ptr = bccb; 1131 ccb->ccb_h.ccb_bt_ptr = bt; 1132 1133 /* 1134 * Put all the arguments for the xfer in the bccb 1135 */ 1136 hccb->target_id = ccb->ccb_h.target_id; 1137 hccb->target_lun = ccb->ccb_h.target_lun; 1138 hccb->btstat = 0; 1139 hccb->sdstat = 0; 1140 1141 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1142 struct ccb_scsiio *csio; 1143 struct ccb_hdr *ccbh; 1144 1145 csio = &ccb->csio; 1146 ccbh = &csio->ccb_h; 1147 hccb->opcode = INITIATOR_CCB_WRESID; 1148 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) ? 1 : 0; 1149 hccb->dataout =(ccb->ccb_h.flags & CAM_DIR_OUT) ? 1 : 0; 1150 hccb->cmd_len = csio->cdb_len; 1151 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) { 1152 ccb->ccb_h.status = CAM_REQ_INVALID; 1153 btfreeccb(bt, bccb); 1154 xpt_done(ccb); 1155 return; 1156 } 1157 hccb->sense_len = csio->sense_len; 1158 if ((ccbh->flags & CAM_TAG_ACTION_VALID) != 0 1159 && ccb->csio.tag_action != CAM_TAG_ACTION_NONE) { 1160 hccb->tag_enable = TRUE; 1161 hccb->tag_type = (ccb->csio.tag_action & 0x3); 1162 } else { 1163 hccb->tag_enable = FALSE; 1164 hccb->tag_type = 0; 1165 } 1166 if ((ccbh->flags & CAM_CDB_POINTER) != 0) { 1167 if ((ccbh->flags & CAM_CDB_PHYS) == 0) { 1168 bcopy(csio->cdb_io.cdb_ptr, 1169 hccb->scsi_cdb, hccb->cmd_len); 1170 } else { 1171 /* I guess I could map it in... */ 1172 ccbh->status = CAM_REQ_INVALID; 1173 btfreeccb(bt, bccb); 1174 xpt_done(ccb); 1175 return; 1176 } 1177 } else { 1178 bcopy(csio->cdb_io.cdb_bytes, 1179 hccb->scsi_cdb, hccb->cmd_len); 1180 } 1181 /* If need be, bounce our sense buffer */ 1182 if (bt->sense_buffers != NULL) { 1183 hccb->sense_addr = btsensepaddr(bt, bccb); 1184 } else { 1185 hccb->sense_addr = vtophys(&csio->sense_data); 1186 } 1187 /* 1188 * If we have any data to send with this command, 1189 * map it into bus space. 1190 */ 1191 /* Only use S/G if there is a transfer */ 1192 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1193 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) { 1194 /* 1195 * We've been given a pointer 1196 * to a single buffer. 1197 */ 1198 if ((ccbh->flags & CAM_DATA_PHYS)==0) { 1199 int s; 1200 int error; 1201 1202 s = splsoftvm(); 1203 error = bus_dmamap_load( 1204 bt->buffer_dmat, 1205 bccb->dmamap, 1206 csio->data_ptr, 1207 csio->dxfer_len, 1208 btexecuteccb, 1209 bccb, 1210 /*flags*/0); 1211 if (error == EINPROGRESS) { 1212 /* 1213 * So as to maintain 1214 * ordering, freeze the 1215 * controller queue 1216 * until our mapping is 1217 * returned. 1218 */ 1219 xpt_freeze_simq(bt->sim, 1220 1); 1221 csio->ccb_h.status |= 1222 CAM_RELEASE_SIMQ; 1223 } 1224 splx(s); 1225 } else { 1226 struct bus_dma_segment seg; 1227 1228 /* Pointer to physical buffer */ 1229 seg.ds_addr = 1230 (bus_addr_t)csio->data_ptr; 1231 seg.ds_len = csio->dxfer_len; 1232 btexecuteccb(bccb, &seg, 1, 0); 1233 } 1234 } else { 1235 struct bus_dma_segment *segs; 1236 1237 if ((ccbh->flags & CAM_DATA_PHYS) != 0) 1238 panic("btaction - Physical " 1239 "segment pointers " 1240 "unsupported"); 1241 1242 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0) 1243 panic("btaction - Virtual " 1244 "segment addresses " 1245 "unsupported"); 1246 1247 /* Just use the segments provided */ 1248 segs = (struct bus_dma_segment *) 1249 csio->data_ptr; 1250 btexecuteccb(bccb, segs, 1251 csio->sglist_cnt, 0); 1252 } 1253 } else { 1254 btexecuteccb(bccb, NULL, 0, 0); 1255 } 1256 } else { 1257 hccb->opcode = INITIATOR_BUS_DEV_RESET; 1258 /* No data transfer */ 1259 hccb->datain = TRUE; 1260 hccb->dataout = TRUE; 1261 hccb->cmd_len = 0; 1262 hccb->sense_len = 0; 1263 hccb->tag_enable = FALSE; 1264 hccb->tag_type = 0; 1265 btexecuteccb(bccb, NULL, 0, 0); 1266 } 1267 break; 1268 } 1269 case XPT_EN_LUN: /* Enable LUN as a target */ 1270 case XPT_TARGET_IO: /* Execute target I/O request */ 1271 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 1272 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 1273 case XPT_ABORT: /* Abort the specified CCB */ 1274 /* XXX Implement */ 1275 ccb->ccb_h.status = CAM_REQ_INVALID; 1276 xpt_done(ccb); 1277 break; 1278 case XPT_SET_TRAN_SETTINGS: 1279 { 1280 /* XXX Implement */ 1281 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 1282 xpt_done(ccb); 1283 break; 1284 } 1285 case XPT_GET_TRAN_SETTINGS: 1286 /* Get default/user set transfer settings for the target */ 1287 { 1288 struct ccb_trans_settings *cts; 1289 u_int target_mask; 1290 1291 cts = &ccb->cts; 1292 target_mask = 0x01 << ccb->ccb_h.target_id; 1293 #ifdef CAM_NEW_TRAN_CODE 1294 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 1295 struct ccb_trans_settings_scsi *scsi = 1296 &cts->proto_specific.scsi; 1297 struct ccb_trans_settings_spi *spi = 1298 &cts->xport_specific.spi; 1299 cts->protocol = PROTO_SCSI; 1300 cts->protocol_version = SCSI_REV_2; 1301 cts->transport = XPORT_SPI; 1302 cts->transport_version = 2; 1303 1304 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1305 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 1306 1307 if ((bt->disc_permitted & target_mask) != 0) 1308 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 1309 if ((bt->tags_permitted & target_mask) != 0) 1310 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 1311 1312 if ((bt->ultra_permitted & target_mask) != 0) 1313 spi->sync_period = 12; 1314 else if ((bt->fast_permitted & target_mask) != 0) 1315 spi->sync_period = 25; 1316 else if ((bt->sync_permitted & target_mask) != 0) 1317 spi->sync_period = 50; 1318 else 1319 spi->sync_period = 0; 1320 1321 if (spi->sync_period != 0) 1322 spi->sync_offset = 15; 1323 1324 spi->valid |= CTS_SPI_VALID_SYNC_RATE; 1325 spi->valid |= CTS_SPI_VALID_SYNC_OFFSET; 1326 1327 spi->valid |= CTS_SPI_VALID_BUS_WIDTH; 1328 if ((bt->wide_permitted & target_mask) != 0) 1329 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 1330 else 1331 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1332 1333 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 1334 scsi->valid = CTS_SCSI_VALID_TQ; 1335 spi->valid |= CTS_SPI_VALID_DISC; 1336 } else 1337 scsi->valid = 0; 1338 } else { 1339 #else 1340 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 1341 cts->flags = 0; 1342 if ((bt->disc_permitted & target_mask) != 0) 1343 cts->flags |= CCB_TRANS_DISC_ENB; 1344 if ((bt->tags_permitted & target_mask) != 0) 1345 cts->flags |= CCB_TRANS_TAG_ENB; 1346 if ((bt->wide_permitted & target_mask) != 0) 1347 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 1348 else 1349 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1350 if ((bt->ultra_permitted & target_mask) != 0) 1351 cts->sync_period = 12; 1352 else if ((bt->fast_permitted & target_mask) != 0) 1353 cts->sync_period = 25; 1354 else if ((bt->sync_permitted & target_mask) != 0) 1355 cts->sync_period = 50; 1356 else 1357 cts->sync_period = 0; 1358 1359 if (cts->sync_period != 0) 1360 cts->sync_offset = 15; 1361 1362 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1363 | CCB_TRANS_SYNC_OFFSET_VALID 1364 | CCB_TRANS_BUS_WIDTH_VALID 1365 | CCB_TRANS_DISC_VALID 1366 | CCB_TRANS_TQ_VALID; 1367 } else { 1368 #endif 1369 btfetchtransinfo(bt, cts); 1370 } 1371 1372 ccb->ccb_h.status = CAM_REQ_CMP; 1373 xpt_done(ccb); 1374 break; 1375 } 1376 case XPT_CALC_GEOMETRY: 1377 { 1378 struct ccb_calc_geometry *ccg; 1379 u_int32_t size_mb; 1380 u_int32_t secs_per_cylinder; 1381 1382 ccg = &ccb->ccg; 1383 size_mb = ccg->volume_size 1384 / ((1024L * 1024L) / ccg->block_size); 1385 1386 if (size_mb >= 1024 && (bt->extended_trans != 0)) { 1387 if (size_mb >= 2048) { 1388 ccg->heads = 255; 1389 ccg->secs_per_track = 63; 1390 } else { 1391 ccg->heads = 128; 1392 ccg->secs_per_track = 32; 1393 } 1394 } else { 1395 ccg->heads = 64; 1396 ccg->secs_per_track = 32; 1397 } 1398 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 1399 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 1400 ccb->ccb_h.status = CAM_REQ_CMP; 1401 xpt_done(ccb); 1402 break; 1403 } 1404 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 1405 { 1406 btreset(bt, /*hardreset*/TRUE); 1407 ccb->ccb_h.status = CAM_REQ_CMP; 1408 xpt_done(ccb); 1409 break; 1410 } 1411 case XPT_TERM_IO: /* Terminate the I/O process */ 1412 /* XXX Implement */ 1413 ccb->ccb_h.status = CAM_REQ_INVALID; 1414 xpt_done(ccb); 1415 break; 1416 case XPT_PATH_INQ: /* Path routing inquiry */ 1417 { 1418 struct ccb_pathinq *cpi = &ccb->cpi; 1419 1420 cpi->version_num = 1; /* XXX??? */ 1421 cpi->hba_inquiry = PI_SDTR_ABLE; 1422 if (bt->tag_capable != 0) 1423 cpi->hba_inquiry |= PI_TAG_ABLE; 1424 if (bt->wide_bus != 0) 1425 cpi->hba_inquiry |= PI_WIDE_16; 1426 cpi->target_sprt = 0; 1427 cpi->hba_misc = 0; 1428 cpi->hba_eng_cnt = 0; 1429 cpi->max_target = bt->wide_bus ? 15 : 7; 1430 cpi->max_lun = 7; 1431 cpi->initiator_id = bt->scsi_id; 1432 cpi->bus_id = cam_sim_bus(sim); 1433 cpi->base_transfer_speed = 3300; 1434 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 1435 strncpy(cpi->hba_vid, "BusLogic", HBA_IDLEN); 1436 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 1437 cpi->unit_number = cam_sim_unit(sim); 1438 cpi->ccb_h.status = CAM_REQ_CMP; 1439 #ifdef CAM_NEW_TRAN_CODE 1440 cpi->transport = XPORT_SPI; 1441 cpi->transport_version = 2; 1442 cpi->protocol = PROTO_SCSI; 1443 cpi->protocol_version = SCSI_REV_2; 1444 #endif 1445 xpt_done(ccb); 1446 break; 1447 } 1448 default: 1449 ccb->ccb_h.status = CAM_REQ_INVALID; 1450 xpt_done(ccb); 1451 break; 1452 } 1453 } 1454 1455 static void 1456 btexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1457 { 1458 struct bt_ccb *bccb; 1459 union ccb *ccb; 1460 struct bt_softc *bt; 1461 int s; 1462 1463 bccb = (struct bt_ccb *)arg; 1464 ccb = bccb->ccb; 1465 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 1466 1467 if (error != 0) { 1468 if (error != EFBIG) 1469 device_printf(bt->dev, 1470 "Unexepected error 0x%x returned from " 1471 "bus_dmamap_load\n", error); 1472 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1473 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1474 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1475 } 1476 btfreeccb(bt, bccb); 1477 xpt_done(ccb); 1478 return; 1479 } 1480 1481 if (nseg != 0) { 1482 bt_sg_t *sg; 1483 bus_dma_segment_t *end_seg; 1484 bus_dmasync_op_t op; 1485 1486 end_seg = dm_segs + nseg; 1487 1488 /* Copy the segments into our SG list */ 1489 sg = bccb->sg_list; 1490 while (dm_segs < end_seg) { 1491 sg->len = dm_segs->ds_len; 1492 sg->addr = dm_segs->ds_addr; 1493 sg++; 1494 dm_segs++; 1495 } 1496 1497 if (nseg > 1) { 1498 bccb->hccb.opcode = INITIATOR_SG_CCB_WRESID; 1499 bccb->hccb.data_len = sizeof(bt_sg_t) * nseg; 1500 bccb->hccb.data_addr = bccb->sg_list_phys; 1501 } else { 1502 bccb->hccb.data_len = bccb->sg_list->len; 1503 bccb->hccb.data_addr = bccb->sg_list->addr; 1504 } 1505 1506 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1507 op = BUS_DMASYNC_PREREAD; 1508 else 1509 op = BUS_DMASYNC_PREWRITE; 1510 1511 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1512 1513 } else { 1514 bccb->hccb.opcode = INITIATOR_CCB; 1515 bccb->hccb.data_len = 0; 1516 bccb->hccb.data_addr = 0; 1517 } 1518 1519 s = splcam(); 1520 1521 /* 1522 * Last time we need to check if this CCB needs to 1523 * be aborted. 1524 */ 1525 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1526 if (nseg != 0) 1527 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1528 btfreeccb(bt, bccb); 1529 xpt_done(ccb); 1530 splx(s); 1531 return; 1532 } 1533 1534 bccb->flags = BCCB_ACTIVE; 1535 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1536 LIST_INSERT_HEAD(&bt->pending_ccbs, &ccb->ccb_h, sim_links.le); 1537 1538 ccb->ccb_h.timeout_ch = 1539 timeout(bttimeout, (caddr_t)bccb, 1540 (ccb->ccb_h.timeout * hz) / 1000); 1541 1542 /* Tell the adapter about this command */ 1543 bt->cur_outbox->ccb_addr = btccbvtop(bt, bccb); 1544 if (bt->cur_outbox->action_code != BMBO_FREE) { 1545 /* 1546 * We should never encounter a busy mailbox. 1547 * If we do, warn the user, and treat it as 1548 * a resource shortage. If the controller is 1549 * hung, one of the pending transactions will 1550 * timeout causing us to start recovery operations. 1551 */ 1552 device_printf(bt->dev, 1553 "Encountered busy mailbox with %d out of %d " 1554 "commands active!!!\n", bt->active_ccbs, 1555 bt->max_ccbs); 1556 untimeout(bttimeout, bccb, ccb->ccb_h.timeout_ch); 1557 if (nseg != 0) 1558 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1559 btfreeccb(bt, bccb); 1560 bt->resource_shortage = TRUE; 1561 xpt_freeze_simq(bt->sim, /*count*/1); 1562 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1563 xpt_done(ccb); 1564 return; 1565 } 1566 bt->cur_outbox->action_code = BMBO_START; 1567 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 1568 btnextoutbox(bt); 1569 splx(s); 1570 } 1571 1572 void 1573 bt_intr(void *arg) 1574 { 1575 struct bt_softc *bt; 1576 u_int intstat; 1577 1578 bt = (struct bt_softc *)arg; 1579 while (((intstat = bt_inb(bt, INTSTAT_REG)) & INTR_PENDING) != 0) { 1580 1581 if ((intstat & CMD_COMPLETE) != 0) { 1582 bt->latched_status = bt_inb(bt, STATUS_REG); 1583 bt->command_cmp = TRUE; 1584 } 1585 1586 bt_outb(bt, CONTROL_REG, RESET_INTR); 1587 1588 if ((intstat & IMB_LOADED) != 0) { 1589 while (bt->cur_inbox->comp_code != BMBI_FREE) { 1590 btdone(bt, 1591 btccbptov(bt, bt->cur_inbox->ccb_addr), 1592 bt->cur_inbox->comp_code); 1593 bt->cur_inbox->comp_code = BMBI_FREE; 1594 btnextinbox(bt); 1595 } 1596 } 1597 1598 if ((intstat & SCSI_BUS_RESET) != 0) { 1599 btreset(bt, /*hardreset*/FALSE); 1600 } 1601 } 1602 } 1603 1604 static void 1605 btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code) 1606 { 1607 union ccb *ccb; 1608 struct ccb_scsiio *csio; 1609 1610 ccb = bccb->ccb; 1611 csio = &bccb->ccb->csio; 1612 1613 if ((bccb->flags & BCCB_ACTIVE) == 0) { 1614 device_printf(bt->dev, 1615 "btdone - Attempt to free non-active BCCB %p\n", 1616 (void *)bccb); 1617 return; 1618 } 1619 1620 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1621 bus_dmasync_op_t op; 1622 1623 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1624 op = BUS_DMASYNC_POSTREAD; 1625 else 1626 op = BUS_DMASYNC_POSTWRITE; 1627 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1628 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1629 } 1630 1631 if (bccb == bt->recovery_bccb) { 1632 /* 1633 * The recovery BCCB does not have a CCB associated 1634 * with it, so short circuit the normal error handling. 1635 * We now traverse our list of pending CCBs and process 1636 * any that were terminated by the recovery CCBs action. 1637 * We also reinstate timeouts for all remaining, pending, 1638 * CCBs. 1639 */ 1640 struct cam_path *path; 1641 struct ccb_hdr *ccb_h; 1642 cam_status error; 1643 1644 /* Notify all clients that a BDR occured */ 1645 error = xpt_create_path(&path, /*periph*/NULL, 1646 cam_sim_path(bt->sim), 1647 bccb->hccb.target_id, 1648 CAM_LUN_WILDCARD); 1649 1650 if (error == CAM_REQ_CMP) 1651 xpt_async(AC_SENT_BDR, path, NULL); 1652 1653 ccb_h = LIST_FIRST(&bt->pending_ccbs); 1654 while (ccb_h != NULL) { 1655 struct bt_ccb *pending_bccb; 1656 1657 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1658 if (pending_bccb->hccb.target_id 1659 == bccb->hccb.target_id) { 1660 pending_bccb->hccb.btstat = BTSTAT_HA_BDR; 1661 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1662 btdone(bt, pending_bccb, BMBI_ERROR); 1663 } else { 1664 ccb_h->timeout_ch = 1665 timeout(bttimeout, (caddr_t)pending_bccb, 1666 (ccb_h->timeout * hz) / 1000); 1667 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1668 } 1669 } 1670 device_printf(bt->dev, "No longer in timeout\n"); 1671 return; 1672 } 1673 1674 untimeout(bttimeout, bccb, ccb->ccb_h.timeout_ch); 1675 1676 switch (comp_code) { 1677 case BMBI_FREE: 1678 device_printf(bt->dev, 1679 "btdone - CCB completed with free status!\n"); 1680 break; 1681 case BMBI_NOT_FOUND: 1682 device_printf(bt->dev, 1683 "btdone - CCB Abort failed to find CCB\n"); 1684 break; 1685 case BMBI_ABORT: 1686 case BMBI_ERROR: 1687 if (bootverbose) { 1688 printf("bt: ccb %p - error %x occured. " 1689 "btstat = %x, sdstat = %x\n", 1690 (void *)bccb, comp_code, bccb->hccb.btstat, 1691 bccb->hccb.sdstat); 1692 } 1693 /* An error occured */ 1694 switch(bccb->hccb.btstat) { 1695 case BTSTAT_DATARUN_ERROR: 1696 if (bccb->hccb.data_len == 0) { 1697 /* 1698 * At least firmware 4.22, does this 1699 * for a QUEUE FULL condition. 1700 */ 1701 bccb->hccb.sdstat = SCSI_STATUS_QUEUE_FULL; 1702 } else if (bccb->hccb.data_len < 0) { 1703 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1704 break; 1705 } 1706 /* FALLTHROUGH */ 1707 case BTSTAT_NOERROR: 1708 case BTSTAT_LINKED_CMD_COMPLETE: 1709 case BTSTAT_LINKED_CMD_FLAG_COMPLETE: 1710 case BTSTAT_DATAUNDERUN_ERROR: 1711 1712 csio->scsi_status = bccb->hccb.sdstat; 1713 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1714 switch(csio->scsi_status) { 1715 case SCSI_STATUS_CHECK_COND: 1716 case SCSI_STATUS_CMD_TERMINATED: 1717 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1718 /* Bounce sense back if necessary */ 1719 if (bt->sense_buffers != NULL) { 1720 csio->sense_data = 1721 *btsensevaddr(bt, bccb); 1722 } 1723 break; 1724 default: 1725 break; 1726 case SCSI_STATUS_OK: 1727 csio->ccb_h.status = CAM_REQ_CMP; 1728 break; 1729 } 1730 csio->resid = bccb->hccb.data_len; 1731 break; 1732 case BTSTAT_SELTIMEOUT: 1733 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1734 break; 1735 case BTSTAT_UNEXPECTED_BUSFREE: 1736 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1737 break; 1738 case BTSTAT_INVALID_PHASE: 1739 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1740 break; 1741 case BTSTAT_INVALID_ACTION_CODE: 1742 panic("%s: Inavlid Action code", bt_name(bt)); 1743 break; 1744 case BTSTAT_INVALID_OPCODE: 1745 panic("%s: Inavlid CCB Opcode code", bt_name(bt)); 1746 break; 1747 case BTSTAT_LINKED_CCB_LUN_MISMATCH: 1748 /* We don't even support linked commands... */ 1749 panic("%s: Linked CCB Lun Mismatch", bt_name(bt)); 1750 break; 1751 case BTSTAT_INVALID_CCB_OR_SG_PARAM: 1752 panic("%s: Invalid CCB or SG list", bt_name(bt)); 1753 break; 1754 case BTSTAT_AUTOSENSE_FAILED: 1755 csio->ccb_h.status = CAM_AUTOSENSE_FAIL; 1756 break; 1757 case BTSTAT_TAGGED_MSG_REJECTED: 1758 { 1759 struct ccb_trans_settings neg; 1760 #ifdef CAM_NEW_TRAN_CODE 1761 struct ccb_trans_settings_scsi *scsi = 1762 &neg.proto_specific.scsi; 1763 1764 neg.protocol = PROTO_SCSI; 1765 neg.protocol_version = SCSI_REV_2; 1766 neg.transport = XPORT_SPI; 1767 neg.transport_version = 2; 1768 scsi->valid = CTS_SCSI_VALID_TQ; 1769 scsi->flags = 0; 1770 #else 1771 1772 neg.flags = 0; 1773 neg.valid = CCB_TRANS_TQ_VALID; 1774 #endif 1775 xpt_print_path(csio->ccb_h.path); 1776 printf("refuses tagged commands. Performing " 1777 "non-tagged I/O\n"); 1778 xpt_setup_ccb(&neg.ccb_h, csio->ccb_h.path, 1779 /*priority*/1); 1780 xpt_async(AC_TRANSFER_NEG, csio->ccb_h.path, &neg); 1781 bt->tags_permitted &= ~(0x01 << csio->ccb_h.target_id); 1782 csio->ccb_h.status = CAM_MSG_REJECT_REC; 1783 break; 1784 } 1785 case BTSTAT_UNSUPPORTED_MSG_RECEIVED: 1786 /* 1787 * XXX You would think that this is 1788 * a recoverable error... Hmmm. 1789 */ 1790 csio->ccb_h.status = CAM_REQ_CMP_ERR; 1791 break; 1792 case BTSTAT_HA_SOFTWARE_ERROR: 1793 case BTSTAT_HA_WATCHDOG_ERROR: 1794 case BTSTAT_HARDWARE_FAILURE: 1795 /* Hardware reset ??? Can we recover ??? */ 1796 csio->ccb_h.status = CAM_NO_HBA; 1797 break; 1798 case BTSTAT_TARGET_IGNORED_ATN: 1799 case BTSTAT_OTHER_SCSI_BUS_RESET: 1800 case BTSTAT_HA_SCSI_BUS_RESET: 1801 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1802 != CAM_CMD_TIMEOUT) 1803 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1804 break; 1805 case BTSTAT_HA_BDR: 1806 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) 1807 csio->ccb_h.status = CAM_BDR_SENT; 1808 else 1809 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1810 break; 1811 case BTSTAT_INVALID_RECONNECT: 1812 case BTSTAT_ABORT_QUEUE_GENERATED: 1813 csio->ccb_h.status = CAM_REQ_TERMIO; 1814 break; 1815 case BTSTAT_SCSI_PERROR_DETECTED: 1816 csio->ccb_h.status = CAM_UNCOR_PARITY; 1817 break; 1818 } 1819 if (csio->ccb_h.status != CAM_REQ_CMP) { 1820 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1821 csio->ccb_h.status |= CAM_DEV_QFRZN; 1822 } 1823 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1824 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1825 btfreeccb(bt, bccb); 1826 xpt_done(ccb); 1827 break; 1828 case BMBI_OK: 1829 /* All completed without incident */ 1830 ccb->ccb_h.status |= CAM_REQ_CMP; 1831 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1832 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1833 btfreeccb(bt, bccb); 1834 xpt_done(ccb); 1835 break; 1836 } 1837 } 1838 1839 static int 1840 btreset(struct bt_softc* bt, int hard_reset) 1841 { 1842 struct ccb_hdr *ccb_h; 1843 u_int status; 1844 u_int timeout; 1845 u_int8_t reset_type; 1846 1847 if (hard_reset != 0) 1848 reset_type = HARD_RESET; 1849 else 1850 reset_type = SOFT_RESET; 1851 bt_outb(bt, CONTROL_REG, reset_type); 1852 1853 /* Wait 5sec. for Diagnostic start */ 1854 timeout = 5 * 10000; 1855 while (--timeout) { 1856 status = bt_inb(bt, STATUS_REG); 1857 if ((status & DIAG_ACTIVE) != 0) 1858 break; 1859 DELAY(100); 1860 } 1861 if (timeout == 0) { 1862 if (bootverbose) 1863 printf("%s: btreset - Diagnostic Active failed to " 1864 "assert. status = 0x%x\n", bt_name(bt), status); 1865 return (ETIMEDOUT); 1866 } 1867 1868 /* Wait 10sec. for Diagnostic end */ 1869 timeout = 10 * 10000; 1870 while (--timeout) { 1871 status = bt_inb(bt, STATUS_REG); 1872 if ((status & DIAG_ACTIVE) == 0) 1873 break; 1874 DELAY(100); 1875 } 1876 if (timeout == 0) { 1877 panic("%s: btreset - Diagnostic Active failed to drop. " 1878 "status = 0x%x\n", bt_name(bt), status); 1879 return (ETIMEDOUT); 1880 } 1881 1882 /* Wait for the host adapter to become ready or report a failure */ 1883 timeout = 10000; 1884 while (--timeout) { 1885 status = bt_inb(bt, STATUS_REG); 1886 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1887 break; 1888 DELAY(100); 1889 } 1890 if (timeout == 0) { 1891 printf("%s: btreset - Host adapter failed to come ready. " 1892 "status = 0x%x\n", bt_name(bt), status); 1893 return (ETIMEDOUT); 1894 } 1895 1896 /* If the diagnostics failed, tell the user */ 1897 if ((status & DIAG_FAIL) != 0 1898 || (status & HA_READY) == 0) { 1899 printf("%s: btreset - Adapter failed diagnostics\n", 1900 bt_name(bt)); 1901 1902 if ((status & DATAIN_REG_READY) != 0) 1903 printf("%s: btreset - Host Adapter Error code = 0x%x\n", 1904 bt_name(bt), bt_inb(bt, DATAIN_REG)); 1905 return (ENXIO); 1906 } 1907 1908 /* If we've allocated mailboxes, initialize them */ 1909 if (bt->init_level > 4) 1910 btinitmboxes(bt); 1911 1912 /* If we've attached to the XPT, tell it about the event */ 1913 if (bt->path != NULL) 1914 xpt_async(AC_BUS_RESET, bt->path, NULL); 1915 1916 /* 1917 * Perform completion processing for all outstanding CCBs. 1918 */ 1919 while ((ccb_h = LIST_FIRST(&bt->pending_ccbs)) != NULL) { 1920 struct bt_ccb *pending_bccb; 1921 1922 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1923 pending_bccb->hccb.btstat = BTSTAT_HA_SCSI_BUS_RESET; 1924 btdone(bt, pending_bccb, BMBI_ERROR); 1925 } 1926 1927 return (0); 1928 } 1929 1930 /* 1931 * Send a command to the adapter. 1932 */ 1933 int 1934 bt_cmd(struct bt_softc *bt, bt_op_t opcode, u_int8_t *params, u_int param_len, 1935 u_int8_t *reply_data, u_int reply_len, u_int cmd_timeout) 1936 { 1937 u_int timeout; 1938 u_int status; 1939 u_int saved_status; 1940 u_int intstat; 1941 u_int reply_buf_size; 1942 int s; 1943 int cmd_complete; 1944 int error; 1945 1946 /* No data returned to start */ 1947 reply_buf_size = reply_len; 1948 reply_len = 0; 1949 intstat = 0; 1950 cmd_complete = 0; 1951 saved_status = 0; 1952 error = 0; 1953 1954 bt->command_cmp = 0; 1955 /* 1956 * Wait up to 10 sec. for the adapter to become 1957 * ready to accept commands. 1958 */ 1959 timeout = 100000; 1960 while (--timeout) { 1961 status = bt_inb(bt, STATUS_REG); 1962 if ((status & HA_READY) != 0 1963 && (status & CMD_REG_BUSY) == 0) 1964 break; 1965 /* 1966 * Throw away any pending data which may be 1967 * left over from earlier commands that we 1968 * timedout on. 1969 */ 1970 if ((status & DATAIN_REG_READY) != 0) 1971 (void)bt_inb(bt, DATAIN_REG); 1972 DELAY(100); 1973 } 1974 if (timeout == 0) { 1975 printf("%s: bt_cmd: Timeout waiting for adapter ready, " 1976 "status = 0x%x\n", bt_name(bt), status); 1977 return (ETIMEDOUT); 1978 } 1979 1980 /* 1981 * Send the opcode followed by any necessary parameter bytes. 1982 */ 1983 bt_outb(bt, COMMAND_REG, opcode); 1984 1985 /* 1986 * Wait for up to 1sec for each byte of the the 1987 * parameter list sent to be sent. 1988 */ 1989 timeout = 10000; 1990 while (param_len && --timeout) { 1991 DELAY(100); 1992 s = splcam(); 1993 status = bt_inb(bt, STATUS_REG); 1994 intstat = bt_inb(bt, INTSTAT_REG); 1995 splx(s); 1996 1997 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1998 == (INTR_PENDING|CMD_COMPLETE)) { 1999 saved_status = status; 2000 cmd_complete = 1; 2001 break; 2002 } 2003 if (bt->command_cmp != 0) { 2004 saved_status = bt->latched_status; 2005 cmd_complete = 1; 2006 break; 2007 } 2008 if ((status & DATAIN_REG_READY) != 0) 2009 break; 2010 if ((status & CMD_REG_BUSY) == 0) { 2011 bt_outb(bt, COMMAND_REG, *params++); 2012 param_len--; 2013 timeout = 10000; 2014 } 2015 } 2016 if (timeout == 0) { 2017 printf("%s: bt_cmd: Timeout sending parameters, " 2018 "status = 0x%x\n", bt_name(bt), status); 2019 cmd_complete = 1; 2020 saved_status = status; 2021 error = ETIMEDOUT; 2022 } 2023 2024 /* 2025 * Wait for the command to complete. 2026 */ 2027 while (cmd_complete == 0 && --cmd_timeout) { 2028 2029 s = splcam(); 2030 status = bt_inb(bt, STATUS_REG); 2031 intstat = bt_inb(bt, INTSTAT_REG); 2032 /* 2033 * It may be that this command was issued with 2034 * controller interrupts disabled. We'll never 2035 * get to our command if an incoming mailbox 2036 * interrupt is pending, so take care of completed 2037 * mailbox commands by calling our interrupt handler. 2038 */ 2039 if ((intstat & (INTR_PENDING|IMB_LOADED)) 2040 == (INTR_PENDING|IMB_LOADED)) 2041 bt_intr(bt); 2042 splx(s); 2043 2044 if (bt->command_cmp != 0) { 2045 /* 2046 * Our interrupt handler saw CMD_COMPLETE 2047 * status before we did. 2048 */ 2049 cmd_complete = 1; 2050 saved_status = bt->latched_status; 2051 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 2052 == (INTR_PENDING|CMD_COMPLETE)) { 2053 /* 2054 * Our poll (in case interrupts are blocked) 2055 * saw the CMD_COMPLETE interrupt. 2056 */ 2057 cmd_complete = 1; 2058 saved_status = status; 2059 } else if (opcode == BOP_MODIFY_IO_ADDR 2060 && (status & CMD_REG_BUSY) == 0) { 2061 /* 2062 * The BOP_MODIFY_IO_ADDR does not issue a CMD_COMPLETE, 2063 * but it should update the status register. So, we 2064 * consider this command complete when the CMD_REG_BUSY 2065 * status clears. 2066 */ 2067 saved_status = status; 2068 cmd_complete = 1; 2069 } else if ((status & DATAIN_REG_READY) != 0) { 2070 u_int8_t data; 2071 2072 data = bt_inb(bt, DATAIN_REG); 2073 if (reply_len < reply_buf_size) { 2074 *reply_data++ = data; 2075 } else { 2076 printf("%s: bt_cmd - Discarded reply data byte " 2077 "for opcode 0x%x\n", bt_name(bt), 2078 opcode); 2079 } 2080 /* 2081 * Reset timeout to ensure at least a second 2082 * between response bytes. 2083 */ 2084 cmd_timeout = MAX(cmd_timeout, 10000); 2085 reply_len++; 2086 2087 } else if ((opcode == BOP_FETCH_LRAM) 2088 && (status & HA_READY) != 0) { 2089 saved_status = status; 2090 cmd_complete = 1; 2091 } 2092 DELAY(100); 2093 } 2094 if (cmd_timeout == 0) { 2095 printf("%s: bt_cmd: Timeout waiting for command (%x) " 2096 "to complete.\n%s: status = 0x%x, intstat = 0x%x, " 2097 "rlen %d\n", bt_name(bt), opcode, 2098 bt_name(bt), status, intstat, reply_len); 2099 error = (ETIMEDOUT); 2100 } 2101 2102 /* 2103 * Clear any pending interrupts. Block interrupts so our 2104 * interrupt handler is not re-entered. 2105 */ 2106 s = splcam(); 2107 bt_intr(bt); 2108 splx(s); 2109 2110 if (error != 0) 2111 return (error); 2112 2113 /* 2114 * If the command was rejected by the controller, tell the caller. 2115 */ 2116 if ((saved_status & CMD_INVALID) != 0) { 2117 /* 2118 * Some early adapters may not recover properly from 2119 * an invalid command. If it appears that the controller 2120 * has wedged (i.e. status was not cleared by our interrupt 2121 * reset above), perform a soft reset. 2122 */ 2123 if (bootverbose) 2124 printf("%s: Invalid Command 0x%x\n", bt_name(bt), 2125 opcode); 2126 DELAY(1000); 2127 status = bt_inb(bt, STATUS_REG); 2128 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 2129 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 2130 || (status & (HA_READY|INIT_REQUIRED)) 2131 != (HA_READY|INIT_REQUIRED)) { 2132 btreset(bt, /*hard_reset*/FALSE); 2133 } 2134 return (EINVAL); 2135 } 2136 2137 if (param_len > 0) { 2138 /* The controller did not accept the full argument list */ 2139 return (E2BIG); 2140 } 2141 2142 if (reply_len != reply_buf_size) { 2143 /* Too much or too little data received */ 2144 return (EMSGSIZE); 2145 } 2146 2147 /* We were successful */ 2148 return (0); 2149 } 2150 2151 static int 2152 btinitmboxes(struct bt_softc *bt) { 2153 init_32b_mbox_params_t init_mbox; 2154 int error; 2155 2156 bzero(bt->in_boxes, sizeof(bt_mbox_in_t) * bt->num_boxes); 2157 bzero(bt->out_boxes, sizeof(bt_mbox_out_t) * bt->num_boxes); 2158 bt->cur_inbox = bt->in_boxes; 2159 bt->last_inbox = bt->in_boxes + bt->num_boxes - 1; 2160 bt->cur_outbox = bt->out_boxes; 2161 bt->last_outbox = bt->out_boxes + bt->num_boxes - 1; 2162 2163 /* Tell the adapter about them */ 2164 init_mbox.num_boxes = bt->num_boxes; 2165 init_mbox.base_addr[0] = bt->mailbox_physbase & 0xFF; 2166 init_mbox.base_addr[1] = (bt->mailbox_physbase >> 8) & 0xFF; 2167 init_mbox.base_addr[2] = (bt->mailbox_physbase >> 16) & 0xFF; 2168 init_mbox.base_addr[3] = (bt->mailbox_physbase >> 24) & 0xFF; 2169 error = bt_cmd(bt, BOP_INITIALIZE_32BMBOX, (u_int8_t *)&init_mbox, 2170 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 2171 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 2172 2173 if (error != 0) 2174 printf("btinitmboxes: Initialization command failed\n"); 2175 else if (bt->strict_rr != 0) { 2176 /* 2177 * If the controller supports 2178 * strict round robin mode, 2179 * enable it 2180 */ 2181 u_int8_t param; 2182 2183 param = 0; 2184 error = bt_cmd(bt, BOP_ENABLE_STRICT_RR, ¶m, 1, 2185 /*reply_buf*/NULL, /*reply_len*/0, 2186 DEFAULT_CMD_TIMEOUT); 2187 2188 if (error != 0) { 2189 printf("btinitmboxes: Unable to enable strict RR\n"); 2190 error = 0; 2191 } else if (bootverbose) { 2192 printf("%s: Using Strict Round Robin Mailbox Mode\n", 2193 bt_name(bt)); 2194 } 2195 } 2196 2197 return (error); 2198 } 2199 2200 /* 2201 * Update the XPT's idea of the negotiated transfer 2202 * parameters for a particular target. 2203 */ 2204 static void 2205 btfetchtransinfo(struct bt_softc *bt, struct ccb_trans_settings *cts) 2206 { 2207 setup_data_t setup_info; 2208 u_int target; 2209 u_int targ_offset; 2210 u_int targ_mask; 2211 u_int sync_period; 2212 u_int sync_offset; 2213 u_int bus_width; 2214 int error; 2215 u_int8_t param; 2216 targ_syncinfo_t sync_info; 2217 #ifdef CAM_NEW_TRAN_CODE 2218 struct ccb_trans_settings_scsi *scsi = 2219 &cts->proto_specific.scsi; 2220 struct ccb_trans_settings_spi *spi = 2221 &cts->xport_specific.spi; 2222 2223 spi->valid = 0; 2224 scsi->valid = 0; 2225 #else 2226 2227 cts->valid = 0; 2228 #endif 2229 2230 target = cts->ccb_h.target_id; 2231 targ_offset = (target & 0x7); 2232 targ_mask = (0x01 << targ_offset); 2233 2234 /* 2235 * Inquire Setup Information. This command retreives the 2236 * Wide negotiation status for recent adapters as well as 2237 * the sync info for older models. 2238 */ 2239 param = sizeof(setup_info); 2240 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 2241 (u_int8_t*)&setup_info, sizeof(setup_info), 2242 DEFAULT_CMD_TIMEOUT); 2243 2244 if (error != 0) { 2245 printf("%s: btfetchtransinfo - Inquire Setup Info Failed %x\n", 2246 bt_name(bt), error); 2247 return; 2248 } 2249 2250 sync_info = (target < 8) ? setup_info.low_syncinfo[targ_offset] 2251 : setup_info.high_syncinfo[targ_offset]; 2252 2253 if (sync_info.sync == 0) 2254 sync_offset = 0; 2255 else 2256 sync_offset = sync_info.offset; 2257 2258 2259 bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2260 if (strcmp(bt->firmware_ver, "5.06L") >= 0) { 2261 u_int wide_active; 2262 2263 wide_active = 2264 (target < 8) ? (setup_info.low_wide_active & targ_mask) 2265 : (setup_info.high_wide_active & targ_mask); 2266 2267 if (wide_active) 2268 bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2269 } else if ((bt->wide_permitted & targ_mask) != 0) { 2270 struct ccb_getdev cgd; 2271 2272 /* 2273 * Prior to rev 5.06L, wide status isn't provided, 2274 * so we "guess" that wide transfers are in effect 2275 * if the user settings allow for wide and the inquiry 2276 * data for the device indicates that it can handle 2277 * wide transfers. 2278 */ 2279 xpt_setup_ccb(&cgd.ccb_h, cts->ccb_h.path, /*priority*/1); 2280 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 2281 xpt_action((union ccb *)&cgd); 2282 if ((cgd.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP 2283 && (cgd.inq_data.flags & SID_WBus16) != 0) 2284 bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2285 } 2286 2287 if (bt->firmware_ver[0] >= '3') { 2288 /* 2289 * For adapters that can do fast or ultra speeds, 2290 * use the more exact Target Sync Information command. 2291 */ 2292 target_sync_info_data_t sync_info; 2293 2294 param = sizeof(sync_info); 2295 error = bt_cmd(bt, BOP_TARG_SYNC_INFO, ¶m, /*paramlen*/1, 2296 (u_int8_t*)&sync_info, sizeof(sync_info), 2297 DEFAULT_CMD_TIMEOUT); 2298 2299 if (error != 0) { 2300 printf("%s: btfetchtransinfo - Inquire Sync " 2301 "Info Failed 0x%x\n", bt_name(bt), error); 2302 return; 2303 } 2304 sync_period = sync_info.sync_rate[target] * 100; 2305 } else { 2306 sync_period = 2000 + (500 * sync_info.period); 2307 } 2308 2309 #ifdef CAM_NEW_TRAN_CODE 2310 cts->protocol = PROTO_SCSI; 2311 cts->protocol_version = SCSI_REV_2; 2312 cts->transport = XPORT_SPI; 2313 cts->transport_version = 2; 2314 2315 spi->sync_period = sync_period; 2316 spi->valid |= CTS_SPI_VALID_SYNC_RATE; 2317 spi->sync_offset = sync_offset; 2318 spi->valid |= CTS_SPI_VALID_SYNC_OFFSET; 2319 2320 spi->valid |= CTS_SPI_VALID_BUS_WIDTH; 2321 spi->bus_width = bus_width; 2322 2323 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 2324 scsi->valid = CTS_SCSI_VALID_TQ; 2325 spi->valid |= CTS_SPI_VALID_DISC; 2326 } else 2327 scsi->valid = 0; 2328 2329 #else 2330 /* Convert ns value to standard SCSI sync rate */ 2331 if (cts->sync_offset != 0) 2332 cts->sync_period = scsi_calc_syncparam(sync_period); 2333 else 2334 cts->sync_period = 0; 2335 cts->sync_offset = sync_offset; 2336 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2337 2338 cts->valid = CCB_TRANS_SYNC_RATE_VALID 2339 | CCB_TRANS_SYNC_OFFSET_VALID 2340 | CCB_TRANS_BUS_WIDTH_VALID; 2341 2342 #endif 2343 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 2344 } 2345 2346 static void 2347 btmapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2348 { 2349 struct bt_softc* bt; 2350 2351 bt = (struct bt_softc*)arg; 2352 bt->mailbox_physbase = segs->ds_addr; 2353 } 2354 2355 static void 2356 btmapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2357 { 2358 struct bt_softc* bt; 2359 2360 bt = (struct bt_softc*)arg; 2361 bt->bt_ccb_physbase = segs->ds_addr; 2362 } 2363 2364 static void 2365 btmapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2366 { 2367 2368 struct bt_softc* bt; 2369 2370 bt = (struct bt_softc*)arg; 2371 SLIST_FIRST(&bt->sg_maps)->sg_physaddr = segs->ds_addr; 2372 } 2373 2374 static void 2375 btpoll(struct cam_sim *sim) 2376 { 2377 bt_intr(cam_sim_softc(sim)); 2378 } 2379 2380 void 2381 bttimeout(void *arg) 2382 { 2383 struct bt_ccb *bccb; 2384 union ccb *ccb; 2385 struct bt_softc *bt; 2386 int s; 2387 2388 bccb = (struct bt_ccb *)arg; 2389 ccb = bccb->ccb; 2390 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 2391 xpt_print_path(ccb->ccb_h.path); 2392 printf("CCB %p - timed out\n", (void *)bccb); 2393 2394 s = splcam(); 2395 2396 if ((bccb->flags & BCCB_ACTIVE) == 0) { 2397 xpt_print_path(ccb->ccb_h.path); 2398 printf("CCB %p - timed out CCB already completed\n", 2399 (void *)bccb); 2400 splx(s); 2401 return; 2402 } 2403 2404 /* 2405 * In order to simplify the recovery process, we ask the XPT 2406 * layer to halt the queue of new transactions and we traverse 2407 * the list of pending CCBs and remove their timeouts. This 2408 * means that the driver attempts to clear only one error 2409 * condition at a time. In general, timeouts that occur 2410 * close together are related anyway, so there is no benefit 2411 * in attempting to handle errors in parrallel. Timeouts will 2412 * be reinstated when the recovery process ends. 2413 */ 2414 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) { 2415 struct ccb_hdr *ccb_h; 2416 2417 if ((bccb->flags & BCCB_RELEASE_SIMQ) == 0) { 2418 xpt_freeze_simq(bt->sim, /*count*/1); 2419 bccb->flags |= BCCB_RELEASE_SIMQ; 2420 } 2421 2422 ccb_h = LIST_FIRST(&bt->pending_ccbs); 2423 while (ccb_h != NULL) { 2424 struct bt_ccb *pending_bccb; 2425 2426 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 2427 untimeout(bttimeout, pending_bccb, ccb_h->timeout_ch); 2428 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 2429 } 2430 } 2431 2432 if ((bccb->flags & BCCB_DEVICE_RESET) != 0 2433 || bt->cur_outbox->action_code != BMBO_FREE 2434 || ((bccb->hccb.tag_enable == TRUE) 2435 && (bt->firmware_ver[0] < '5'))) { 2436 /* 2437 * Try a full host adapter/SCSI bus reset. 2438 * We do this only if we have already attempted 2439 * to clear the condition with a BDR, or we cannot 2440 * attempt a BDR for lack of mailbox resources 2441 * or because of faulty firmware. It turns out 2442 * that firmware versions prior to 5.xx treat BDRs 2443 * as untagged commands that cannot be sent until 2444 * all outstanding tagged commands have been processed. 2445 * This makes it somewhat difficult to use a BDR to 2446 * clear up a problem with an uncompleted tagged command. 2447 */ 2448 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 2449 btreset(bt, /*hardreset*/TRUE); 2450 printf("%s: No longer in timeout\n", bt_name(bt)); 2451 } else { 2452 /* 2453 * Send a Bus Device Reset message: 2454 * The target that is holding up the bus may not 2455 * be the same as the one that triggered this timeout 2456 * (different commands have different timeout lengths), 2457 * but we have no way of determining this from our 2458 * timeout handler. Our strategy here is to queue a 2459 * BDR message to the target of the timed out command. 2460 * If this fails, we'll get another timeout 2 seconds 2461 * later which will attempt a bus reset. 2462 */ 2463 bccb->flags |= BCCB_DEVICE_RESET; 2464 ccb->ccb_h.timeout_ch = 2465 timeout(bttimeout, (caddr_t)bccb, 2 * hz); 2466 2467 bt->recovery_bccb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 2468 2469 /* No Data Transfer */ 2470 bt->recovery_bccb->hccb.datain = TRUE; 2471 bt->recovery_bccb->hccb.dataout = TRUE; 2472 bt->recovery_bccb->hccb.btstat = 0; 2473 bt->recovery_bccb->hccb.sdstat = 0; 2474 bt->recovery_bccb->hccb.target_id = ccb->ccb_h.target_id; 2475 2476 /* Tell the adapter about this command */ 2477 bt->cur_outbox->ccb_addr = btccbvtop(bt, bt->recovery_bccb); 2478 bt->cur_outbox->action_code = BMBO_START; 2479 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 2480 btnextoutbox(bt); 2481 } 2482 2483 splx(s); 2484 } 2485
Cache object: ab9c883118c41efc8f2e849fa5c12718
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