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 * $FreeBSD: src/sys/dev/buslogic/bt.c,v 1.25.2.1 2000/08/02 22:32:26 peter Exp $ 34 * $DragonFly: src/sys/dev/disk/buslogic/bt.c,v 1.7 2004/09/17 03:39:39 joerg Exp $ 35 */ 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/buf.h> 49 #include <sys/kernel.h> 50 #include <sys/sysctl.h> 51 #include <sys/bus.h> 52 53 /* 54 * XXX It appears that BusLogic PCI adapters go out to lunch if you 55 * attempt to perform memory mapped I/O. 56 */ 57 #if 0 58 #include "use_pci.h" 59 #if NPCI > 0 60 #include <machine/bus_memio.h> 61 #endif 62 #endif 63 #include <machine/bus_pio.h> 64 #include <machine/bus.h> 65 #include <machine/clock.h> 66 #include <sys/rman.h> 67 68 #include <bus/cam/cam.h> 69 #include <bus/cam/cam_ccb.h> 70 #include <bus/cam/cam_sim.h> 71 #include <bus/cam/cam_xpt_sim.h> 72 #include <bus/cam/cam_debug.h> 73 74 #include <bus/cam/scsi/scsi_message.h> 75 76 #include <vm/vm.h> 77 #include <vm/pmap.h> 78 79 #include "btreg.h" 80 81 /* MailBox Management functions */ 82 static __inline void btnextinbox(struct bt_softc *bt); 83 static __inline void btnextoutbox(struct bt_softc *bt); 84 85 static __inline void 86 btnextinbox(struct bt_softc *bt) 87 { 88 if (bt->cur_inbox == bt->last_inbox) 89 bt->cur_inbox = bt->in_boxes; 90 else 91 bt->cur_inbox++; 92 } 93 94 static __inline void 95 btnextoutbox(struct bt_softc *bt) 96 { 97 if (bt->cur_outbox == bt->last_outbox) 98 bt->cur_outbox = bt->out_boxes; 99 else 100 bt->cur_outbox++; 101 } 102 103 /* CCB Mangement functions */ 104 static __inline u_int32_t btccbvtop(struct bt_softc *bt, 105 struct bt_ccb *bccb); 106 static __inline struct bt_ccb* btccbptov(struct bt_softc *bt, 107 u_int32_t ccb_addr); 108 static __inline u_int32_t btsensepaddr(struct bt_softc *bt, 109 struct bt_ccb *bccb); 110 static __inline struct scsi_sense_data* btsensevaddr(struct bt_softc *bt, 111 struct bt_ccb *bccb); 112 113 static __inline u_int32_t 114 btccbvtop(struct bt_softc *bt, struct bt_ccb *bccb) 115 { 116 return (bt->bt_ccb_physbase 117 + (u_int32_t)((caddr_t)bccb - (caddr_t)bt->bt_ccb_array)); 118 } 119 120 static __inline struct bt_ccb * 121 btccbptov(struct bt_softc *bt, u_int32_t ccb_addr) 122 { 123 return (bt->bt_ccb_array + 124 ((struct bt_ccb*)ccb_addr-(struct bt_ccb*)bt->bt_ccb_physbase)); 125 } 126 127 static __inline u_int32_t 128 btsensepaddr(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_physbase 134 + (index * sizeof(struct scsi_sense_data))); 135 } 136 137 static __inline struct scsi_sense_data * 138 btsensevaddr(struct bt_softc *bt, struct bt_ccb *bccb) 139 { 140 u_int index; 141 142 index = (u_int)(bccb - bt->bt_ccb_array); 143 return (bt->sense_buffers + index); 144 } 145 146 static __inline struct bt_ccb* btgetccb(struct bt_softc *bt); 147 static __inline void btfreeccb(struct bt_softc *bt, 148 struct bt_ccb *bccb); 149 static void btallocccbs(struct bt_softc *bt); 150 static bus_dmamap_callback_t btexecuteccb; 151 static void btdone(struct bt_softc *bt, struct bt_ccb *bccb, 152 bt_mbi_comp_code_t comp_code); 153 154 /* Host adapter command functions */ 155 static int btreset(struct bt_softc* bt, int hard_reset); 156 157 /* Initialization functions */ 158 static int btinitmboxes(struct bt_softc *bt); 159 static bus_dmamap_callback_t btmapmboxes; 160 static bus_dmamap_callback_t btmapccbs; 161 static bus_dmamap_callback_t btmapsgs; 162 163 /* Transfer Negotiation Functions */ 164 static void btfetchtransinfo(struct bt_softc *bt, 165 struct ccb_trans_settings *cts); 166 167 /* CAM SIM entry points */ 168 #define ccb_bccb_ptr spriv_ptr0 169 #define ccb_bt_ptr spriv_ptr1 170 static void btaction(struct cam_sim *sim, union ccb *ccb); 171 static void btpoll(struct cam_sim *sim); 172 173 /* Our timeout handler */ 174 timeout_t bttimeout; 175 176 u_long bt_unit = 0; 177 178 /* 179 * XXX 180 * Do our own re-probe protection until a configuration 181 * manager can do it for us. This ensures that we don't 182 * reprobe a card already found by the EISA or PCI probes. 183 */ 184 struct bt_isa_port bt_isa_ports[] = 185 { 186 { 0x130, 0, 4 }, 187 { 0x134, 0, 5 }, 188 { 0x230, 0, 2 }, 189 { 0x234, 0, 3 }, 190 { 0x330, 0, 0 }, 191 { 0x334, 0, 1 } 192 }; 193 194 /* 195 * I/O ports listed in the order enumerated by the 196 * card for certain op codes. 197 */ 198 u_int16_t bt_board_ports[] = 199 { 200 0x330, 201 0x334, 202 0x230, 203 0x234, 204 0x130, 205 0x134 206 }; 207 208 /* Exported functions */ 209 void 210 bt_init_softc(device_t dev, struct resource *port, 211 struct resource *irq, struct resource *drq) 212 { 213 struct bt_softc *bt = device_get_softc(dev); 214 215 SLIST_INIT(&bt->free_bt_ccbs); 216 LIST_INIT(&bt->pending_ccbs); 217 SLIST_INIT(&bt->sg_maps); 218 bt->dev = dev; 219 bt->unit = device_get_unit(dev); 220 bt->port = port; 221 bt->irq = irq; 222 bt->drq = drq; 223 bt->tag = rman_get_bustag(port); 224 bt->bsh = rman_get_bushandle(port); 225 } 226 227 void 228 bt_free_softc(device_t dev) 229 { 230 struct bt_softc *bt = device_get_softc(dev); 231 232 switch (bt->init_level) { 233 default: 234 case 11: 235 bus_dmamap_unload(bt->sense_dmat, bt->sense_dmamap); 236 case 10: 237 bus_dmamem_free(bt->sense_dmat, bt->sense_buffers, 238 bt->sense_dmamap); 239 case 9: 240 bus_dma_tag_destroy(bt->sense_dmat); 241 case 8: 242 { 243 struct sg_map_node *sg_map; 244 245 while ((sg_map = SLIST_FIRST(&bt->sg_maps))!= NULL) { 246 SLIST_REMOVE_HEAD(&bt->sg_maps, links); 247 bus_dmamap_unload(bt->sg_dmat, 248 sg_map->sg_dmamap); 249 bus_dmamem_free(bt->sg_dmat, sg_map->sg_vaddr, 250 sg_map->sg_dmamap); 251 free(sg_map, M_DEVBUF); 252 } 253 bus_dma_tag_destroy(bt->sg_dmat); 254 } 255 case 7: 256 bus_dmamap_unload(bt->ccb_dmat, bt->ccb_dmamap); 257 case 6: 258 bus_dmamem_free(bt->ccb_dmat, bt->bt_ccb_array, 259 bt->ccb_dmamap); 260 bus_dmamap_destroy(bt->ccb_dmat, bt->ccb_dmamap); 261 case 5: 262 bus_dma_tag_destroy(bt->ccb_dmat); 263 case 4: 264 bus_dmamap_unload(bt->mailbox_dmat, bt->mailbox_dmamap); 265 case 3: 266 bus_dmamem_free(bt->mailbox_dmat, bt->in_boxes, 267 bt->mailbox_dmamap); 268 bus_dmamap_destroy(bt->mailbox_dmat, bt->mailbox_dmamap); 269 case 2: 270 bus_dma_tag_destroy(bt->buffer_dmat); 271 case 1: 272 bus_dma_tag_destroy(bt->mailbox_dmat); 273 case 0: 274 break; 275 } 276 } 277 278 int 279 bt_port_probe(device_t dev, struct bt_probe_info *info) 280 { 281 struct bt_softc *bt = device_get_softc(dev); 282 config_data_t config_data; 283 int error; 284 285 /* See if there is really a card present */ 286 if (bt_probe(dev) || bt_fetch_adapter_info(dev)) 287 return(1); 288 289 /* 290 * Determine our IRQ, and DMA settings and 291 * export them to the configuration system. 292 */ 293 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 294 (u_int8_t*)&config_data, sizeof(config_data), 295 DEFAULT_CMD_TIMEOUT); 296 if (error != 0) { 297 printf("bt_port_probe: Could not determine IRQ or DMA " 298 "settings for adapter.\n"); 299 return (1); 300 } 301 302 if (bt->model[0] == '5') { 303 /* DMA settings only make sense for ISA cards */ 304 switch (config_data.dma_chan) { 305 case DMA_CHAN_5: 306 info->drq = 5; 307 break; 308 case DMA_CHAN_6: 309 info->drq = 6; 310 break; 311 case DMA_CHAN_7: 312 info->drq = 7; 313 break; 314 default: 315 printf("bt_port_probe: Invalid DMA setting " 316 "detected for adapter.\n"); 317 return (1); 318 } 319 } else { 320 /* VL/EISA/PCI DMA */ 321 info->drq = -1; 322 } 323 switch (config_data.irq) { 324 case IRQ_9: 325 case IRQ_10: 326 case IRQ_11: 327 case IRQ_12: 328 case IRQ_14: 329 case IRQ_15: 330 info->irq = ffs(config_data.irq) + 8; 331 break; 332 default: 333 printf("bt_port_probe: Invalid IRQ setting %x" 334 "detected for adapter.\n", config_data.irq); 335 return (1); 336 } 337 return (0); 338 } 339 340 /* 341 * Probe the adapter and verify that the card is a BusLogic. 342 */ 343 int 344 bt_probe(device_t dev) 345 { 346 struct bt_softc *bt = device_get_softc(dev); 347 esetup_info_data_t esetup_info; 348 u_int status; 349 u_int intstat; 350 u_int geometry; 351 int error; 352 u_int8_t param; 353 354 /* 355 * See if the three I/O ports look reasonable. 356 * Touch the minimal number of registers in the 357 * failure case. 358 */ 359 status = bt_inb(bt, STATUS_REG); 360 if ((status == 0) 361 || (status & (DIAG_ACTIVE|CMD_REG_BUSY| 362 STATUS_REG_RSVD|CMD_INVALID)) != 0) { 363 if (bootverbose) 364 device_printf(dev, "Failed Status Reg Test - %x\n", 365 status); 366 return (ENXIO); 367 } 368 369 intstat = bt_inb(bt, INTSTAT_REG); 370 if ((intstat & INTSTAT_REG_RSVD) != 0) { 371 device_printf(dev, "Failed Intstat Reg Test\n"); 372 return (ENXIO); 373 } 374 375 geometry = bt_inb(bt, GEOMETRY_REG); 376 if (geometry == 0xFF) { 377 if (bootverbose) 378 device_printf(dev, "Failed Geometry Reg Test\n"); 379 return (ENXIO); 380 } 381 382 /* 383 * Looking good so far. Final test is to reset the 384 * adapter and attempt to fetch the extended setup 385 * information. This should filter out all 1542 cards. 386 */ 387 if ((error = btreset(bt, /*hard_reset*/TRUE)) != 0) { 388 if (bootverbose) 389 device_printf(dev, "Failed Reset\n"); 390 return (ENXIO); 391 } 392 393 param = sizeof(esetup_info); 394 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, ¶m, /*parmlen*/1, 395 (u_int8_t*)&esetup_info, sizeof(esetup_info), 396 DEFAULT_CMD_TIMEOUT); 397 if (error != 0) { 398 return (ENXIO); 399 } 400 401 return (0); 402 } 403 404 /* 405 * Pull the boards setup information and record it in our softc. 406 */ 407 int 408 bt_fetch_adapter_info(device_t dev) 409 { 410 struct bt_softc *bt = device_get_softc(dev); 411 board_id_data_t board_id; 412 esetup_info_data_t esetup_info; 413 config_data_t config_data; 414 int error; 415 u_int8_t length_param; 416 417 /* First record the firmware version */ 418 error = bt_cmd(bt, BOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0, 419 (u_int8_t*)&board_id, sizeof(board_id), 420 DEFAULT_CMD_TIMEOUT); 421 if (error != 0) { 422 device_printf(dev, "bt_fetch_adapter_info - Failed Get Board Info\n"); 423 return (error); 424 } 425 bt->firmware_ver[0] = board_id.firmware_rev_major; 426 bt->firmware_ver[1] = '.'; 427 bt->firmware_ver[2] = board_id.firmware_rev_minor; 428 bt->firmware_ver[3] = '\0'; 429 430 /* 431 * Depending on the firmware major and minor version, 432 * we may be able to fetch additional minor version info. 433 */ 434 if (bt->firmware_ver[0] > '0') { 435 436 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_3DIG, NULL, /*parmlen*/0, 437 (u_int8_t*)&bt->firmware_ver[3], 1, 438 DEFAULT_CMD_TIMEOUT); 439 if (error != 0) { 440 device_printf(dev, 441 "bt_fetch_adapter_info - Failed Get " 442 "Firmware 3rd Digit\n"); 443 return (error); 444 } 445 if (bt->firmware_ver[3] == ' ') 446 bt->firmware_ver[3] = '\0'; 447 bt->firmware_ver[4] = '\0'; 448 } 449 450 if (strcmp(bt->firmware_ver, "3.3") >= 0) { 451 452 error = bt_cmd(bt, BOP_INQUIRE_FW_VER_4DIG, NULL, /*parmlen*/0, 453 (u_int8_t*)&bt->firmware_ver[4], 1, 454 DEFAULT_CMD_TIMEOUT); 455 if (error != 0) { 456 device_printf(dev, 457 "bt_fetch_adapter_info - Failed Get " 458 "Firmware 4th Digit\n"); 459 return (error); 460 } 461 if (bt->firmware_ver[4] == ' ') 462 bt->firmware_ver[4] = '\0'; 463 bt->firmware_ver[5] = '\0'; 464 } 465 466 /* 467 * Some boards do not handle the "recently documented" 468 * Inquire Board Model Number command correctly or do not give 469 * exact information. Use the Firmware and Extended Setup 470 * information in these cases to come up with the right answer. 471 * The major firmware revision number indicates: 472 * 473 * 5.xx BusLogic "W" Series Host Adapters: 474 * BT-948/958/958D 475 * 4.xx BusLogic "C" Series Host Adapters: 476 * BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF 477 * 3.xx BusLogic "S" Series Host Adapters: 478 * BT-747S/747D/757S/757D/445S/545S/542D 479 * BT-542B/742A (revision H) 480 * 2.xx BusLogic "A" Series Host Adapters: 481 * BT-542B/742A (revision G and below) 482 * 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter 483 */ 484 length_param = sizeof(esetup_info); 485 error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, &length_param, /*parmlen*/1, 486 (u_int8_t*)&esetup_info, sizeof(esetup_info), 487 DEFAULT_CMD_TIMEOUT); 488 if (error != 0) { 489 return (error); 490 } 491 492 bt->bios_addr = esetup_info.bios_addr << 12; 493 494 if (esetup_info.bus_type == 'A' 495 && bt->firmware_ver[0] == '2') { 496 snprintf(bt->model, sizeof(bt->model), "542B"); 497 } else if (esetup_info.bus_type == 'E' 498 && (strncmp(bt->firmware_ver, "2.1", 3) == 0 499 || strncmp(bt->firmware_ver, "2.20", 4) == 0)) { 500 snprintf(bt->model, sizeof(bt->model), "742A"); 501 } else if (esetup_info.bus_type == 'E' 502 && bt->firmware_ver[0] == '0') { 503 /* AMI FastDisk EISA Series 441 0.x */ 504 snprintf(bt->model, sizeof(bt->model), "747A"); 505 } else { 506 ha_model_data_t model_data; 507 int i; 508 509 length_param = sizeof(model_data); 510 error = bt_cmd(bt, BOP_INQUIRE_MODEL, &length_param, 1, 511 (u_int8_t*)&model_data, sizeof(model_data), 512 DEFAULT_CMD_TIMEOUT); 513 if (error != 0) { 514 device_printf(dev, 515 "bt_fetch_adapter_info - Failed Inquire " 516 "Model Number\n"); 517 return (error); 518 } 519 for (i = 0; i < sizeof(model_data.ascii_model); i++) { 520 bt->model[i] = model_data.ascii_model[i]; 521 if (bt->model[i] == ' ') 522 break; 523 } 524 bt->model[i] = '\0'; 525 } 526 527 bt->level_trigger_ints = esetup_info.level_trigger_ints ? 1 : 0; 528 529 /* SG element limits */ 530 bt->max_sg = esetup_info.max_sg; 531 532 /* Set feature flags */ 533 bt->wide_bus = esetup_info.wide_bus; 534 bt->diff_bus = esetup_info.diff_bus; 535 bt->ultra_scsi = esetup_info.ultra_scsi; 536 537 if ((bt->firmware_ver[0] == '5') 538 || (bt->firmware_ver[0] == '4' && bt->wide_bus)) 539 bt->extended_lun = TRUE; 540 541 bt->strict_rr = (strcmp(bt->firmware_ver, "3.31") >= 0); 542 543 bt->extended_trans = 544 ((bt_inb(bt, GEOMETRY_REG) & EXTENDED_TRANSLATION) != 0); 545 546 /* 547 * Determine max CCB count and whether tagged queuing is 548 * available based on controller type. Tagged queuing 549 * only works on 'W' series adapters, 'C' series adapters 550 * with firmware of rev 4.42 and higher, and 'S' series 551 * adapters with firmware of rev 3.35 and higher. The 552 * maximum CCB counts are as follows: 553 * 554 * 192 BT-948/958/958D 555 * 100 BT-946C/956C/956CD/747C/757C/757CD/445C 556 * 50 BT-545C/540CF 557 * 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A 558 */ 559 if (bt->firmware_ver[0] == '5') { 560 bt->max_ccbs = 192; 561 bt->tag_capable = TRUE; 562 } else if (bt->firmware_ver[0] == '4') { 563 if (bt->model[0] == '5') 564 bt->max_ccbs = 50; 565 else 566 bt->max_ccbs = 100; 567 bt->tag_capable = (strcmp(bt->firmware_ver, "4.22") >= 0); 568 } else { 569 bt->max_ccbs = 30; 570 if (bt->firmware_ver[0] == '3' 571 && (strcmp(bt->firmware_ver, "3.35") >= 0)) 572 bt->tag_capable = TRUE; 573 else 574 bt->tag_capable = FALSE; 575 } 576 577 if (bt->tag_capable != FALSE) 578 bt->tags_permitted = ALL_TARGETS; 579 580 /* Determine Sync/Wide/Disc settings */ 581 if (bt->firmware_ver[0] >= '4') { 582 auto_scsi_data_t auto_scsi_data; 583 fetch_lram_params_t fetch_lram_params; 584 int error; 585 586 /* 587 * These settings are stored in the 588 * AutoSCSI data in LRAM of 'W' and 'C' 589 * adapters. 590 */ 591 fetch_lram_params.offset = AUTO_SCSI_BYTE_OFFSET; 592 fetch_lram_params.response_len = sizeof(auto_scsi_data); 593 error = bt_cmd(bt, BOP_FETCH_LRAM, 594 (u_int8_t*)&fetch_lram_params, 595 sizeof(fetch_lram_params), 596 (u_int8_t*)&auto_scsi_data, 597 sizeof(auto_scsi_data), DEFAULT_CMD_TIMEOUT); 598 599 if (error != 0) { 600 device_printf(dev, 601 "bt_fetch_adapter_info - Failed " 602 "Get Auto SCSI Info\n"); 603 return (error); 604 } 605 606 bt->disc_permitted = auto_scsi_data.low_disc_permitted 607 | (auto_scsi_data.high_disc_permitted << 8); 608 bt->sync_permitted = auto_scsi_data.low_sync_permitted 609 | (auto_scsi_data.high_sync_permitted << 8); 610 bt->fast_permitted = auto_scsi_data.low_fast_permitted 611 | (auto_scsi_data.high_fast_permitted << 8); 612 bt->ultra_permitted = auto_scsi_data.low_ultra_permitted 613 | (auto_scsi_data.high_ultra_permitted << 8); 614 bt->wide_permitted = auto_scsi_data.low_wide_permitted 615 | (auto_scsi_data.high_wide_permitted << 8); 616 617 if (bt->ultra_scsi == FALSE) 618 bt->ultra_permitted = 0; 619 620 if (bt->wide_bus == FALSE) 621 bt->wide_permitted = 0; 622 } else { 623 /* 624 * 'S' and 'A' series have this information in the setup 625 * information structure. 626 */ 627 setup_data_t setup_info; 628 629 length_param = sizeof(setup_info); 630 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, &length_param, 631 /*paramlen*/1, (u_int8_t*)&setup_info, 632 sizeof(setup_info), DEFAULT_CMD_TIMEOUT); 633 634 if (error != 0) { 635 device_printf(dev, 636 "bt_fetch_adapter_info - Failed " 637 "Get Setup Info\n"); 638 return (error); 639 } 640 641 if (setup_info.initiate_sync != 0) { 642 bt->sync_permitted = ALL_TARGETS; 643 644 if (bt->model[0] == '7') { 645 if (esetup_info.sync_neg10MB != 0) 646 bt->fast_permitted = ALL_TARGETS; 647 if (strcmp(bt->model, "757") == 0) 648 bt->wide_permitted = ALL_TARGETS; 649 } 650 } 651 bt->disc_permitted = ALL_TARGETS; 652 } 653 654 /* We need as many mailboxes as we can have ccbs */ 655 bt->num_boxes = bt->max_ccbs; 656 657 /* Determine our SCSI ID */ 658 659 error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 660 (u_int8_t*)&config_data, sizeof(config_data), 661 DEFAULT_CMD_TIMEOUT); 662 if (error != 0) { 663 device_printf(dev, 664 "bt_fetch_adapter_info - Failed Get Config\n"); 665 return (error); 666 } 667 bt->scsi_id = config_data.scsi_id; 668 669 return (0); 670 } 671 672 /* 673 * Start the board, ready for normal operation 674 */ 675 int 676 bt_init(device_t dev) 677 { 678 struct bt_softc *bt = device_get_softc(dev); 679 680 /* Announce the Adapter */ 681 device_printf(dev, "BT-%s FW Rev. %s ", bt->model, bt->firmware_ver); 682 683 if (bt->ultra_scsi != 0) 684 printf("Ultra "); 685 686 if (bt->wide_bus != 0) 687 printf("Wide "); 688 else 689 printf("Narrow "); 690 691 if (bt->diff_bus != 0) 692 printf("Diff "); 693 694 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", bt->scsi_id, 695 bt->max_ccbs); 696 697 /* 698 * Create our DMA tags. These tags define the kinds of device 699 * accessible memory allocations and memory mappings we will 700 * need to perform during normal operation. 701 * 702 * Unless we need to further restrict the allocation, we rely 703 * on the restrictions of the parent dmat, hence the common 704 * use of MAXADDR and MAXSIZE. 705 */ 706 707 /* DMA tag for mapping buffers into device visible space. */ 708 if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1, /*boundary*/0, 709 /*lowaddr*/BUS_SPACE_MAXADDR, 710 /*highaddr*/BUS_SPACE_MAXADDR, 711 /*filter*/NULL, /*filterarg*/NULL, 712 /*maxsize*/MAXBSIZE, /*nsegments*/BT_NSEG, 713 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, 714 /*flags*/BUS_DMA_ALLOCNOW, 715 &bt->buffer_dmat) != 0) { 716 goto error_exit; 717 } 718 719 bt->init_level++; 720 /* DMA tag for our mailboxes */ 721 if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1, /*boundary*/0, 722 /*lowaddr*/BUS_SPACE_MAXADDR, 723 /*highaddr*/BUS_SPACE_MAXADDR, 724 /*filter*/NULL, /*filterarg*/NULL, 725 bt->num_boxes * (sizeof(bt_mbox_in_t) 726 + sizeof(bt_mbox_out_t)), 727 /*nsegments*/1, 728 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, 729 /*flags*/0, &bt->mailbox_dmat) != 0) { 730 goto error_exit; 731 } 732 733 bt->init_level++; 734 735 /* Allocation for our mailboxes */ 736 if (bus_dmamem_alloc(bt->mailbox_dmat, (void **)&bt->out_boxes, 737 BUS_DMA_NOWAIT, &bt->mailbox_dmamap) != 0) { 738 goto error_exit; 739 } 740 741 bt->init_level++; 742 743 /* And permanently map them */ 744 bus_dmamap_load(bt->mailbox_dmat, bt->mailbox_dmamap, 745 bt->out_boxes, 746 bt->num_boxes * (sizeof(bt_mbox_in_t) 747 + sizeof(bt_mbox_out_t)), 748 btmapmboxes, bt, /*flags*/0); 749 750 bt->init_level++; 751 752 bt->in_boxes = (bt_mbox_in_t *)&bt->out_boxes[bt->num_boxes]; 753 754 btinitmboxes(bt); 755 756 /* DMA tag for our ccb structures */ 757 if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1, /*boundary*/0, 758 /*lowaddr*/BUS_SPACE_MAXADDR, 759 /*highaddr*/BUS_SPACE_MAXADDR, 760 /*filter*/NULL, /*filterarg*/NULL, 761 bt->max_ccbs * sizeof(struct bt_ccb), 762 /*nsegments*/1, 763 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, 764 /*flags*/0, &bt->ccb_dmat) != 0) { 765 goto error_exit; 766 } 767 768 bt->init_level++; 769 770 /* Allocation for our ccbs */ 771 if (bus_dmamem_alloc(bt->ccb_dmat, (void **)&bt->bt_ccb_array, 772 BUS_DMA_NOWAIT, &bt->ccb_dmamap) != 0) { 773 goto error_exit; 774 } 775 776 bt->init_level++; 777 778 /* And permanently map them */ 779 bus_dmamap_load(bt->ccb_dmat, bt->ccb_dmamap, 780 bt->bt_ccb_array, 781 bt->max_ccbs * sizeof(struct bt_ccb), 782 btmapccbs, bt, /*flags*/0); 783 784 bt->init_level++; 785 786 /* DMA tag for our S/G structures. We allocate in page sized chunks */ 787 if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1, /*boundary*/0, 788 /*lowaddr*/BUS_SPACE_MAXADDR, 789 /*highaddr*/BUS_SPACE_MAXADDR, 790 /*filter*/NULL, /*filterarg*/NULL, 791 PAGE_SIZE, /*nsegments*/1, 792 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, 793 /*flags*/0, &bt->sg_dmat) != 0) { 794 goto error_exit; 795 } 796 797 bt->init_level++; 798 799 /* Perform initial CCB allocation */ 800 bzero(bt->bt_ccb_array, bt->max_ccbs * sizeof(struct bt_ccb)); 801 btallocccbs(bt); 802 803 if (bt->num_ccbs == 0) { 804 device_printf(dev, 805 "bt_init - Unable to allocate initial ccbs\n"); 806 goto error_exit; 807 } 808 809 /* 810 * Note that we are going and return (to probe) 811 */ 812 return 0; 813 814 error_exit: 815 816 return (ENXIO); 817 } 818 819 int 820 bt_attach(device_t dev) 821 { 822 struct bt_softc *bt = device_get_softc(dev); 823 int tagged_dev_openings; 824 struct cam_devq *devq; 825 int error; 826 827 /* 828 * We reserve 1 ccb for error recovery, so don't 829 * tell the XPT about it. 830 */ 831 if (bt->tag_capable != 0) 832 tagged_dev_openings = bt->max_ccbs - 1; 833 else 834 tagged_dev_openings = 0; 835 836 /* 837 * Create the device queue for our SIM. 838 */ 839 devq = cam_simq_alloc(bt->max_ccbs - 1); 840 if (devq == NULL) 841 return (ENOMEM); 842 843 /* 844 * Construct our SIM entry 845 */ 846 bt->sim = cam_sim_alloc(btaction, btpoll, "bt", bt, bt->unit, 847 2, tagged_dev_openings, devq); 848 cam_simq_release(devq); 849 if (bt->sim == NULL) 850 return (ENOMEM); 851 852 if (xpt_bus_register(bt->sim, 0) != CAM_SUCCESS) { 853 cam_sim_free(bt->sim); 854 return (ENXIO); 855 } 856 857 if (xpt_create_path(&bt->path, /*periph*/NULL, 858 cam_sim_path(bt->sim), CAM_TARGET_WILDCARD, 859 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 860 xpt_bus_deregister(cam_sim_path(bt->sim)); 861 cam_sim_free(bt->sim); 862 return (ENXIO); 863 } 864 865 /* 866 * Setup interrupt. 867 */ 868 error = bus_setup_intr(dev, bt->irq, INTR_TYPE_CAM, 869 bt_intr, bt, &bt->ih); 870 if (error) { 871 device_printf(dev, "bus_setup_intr() failed: %d\n", error); 872 return (error); 873 } 874 875 return (0); 876 } 877 878 int 879 bt_check_probed_iop(u_int ioport) 880 { 881 u_int i; 882 883 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 884 if (bt_isa_ports[i].addr == ioport) { 885 if (bt_isa_ports[i].probed != 0) 886 return (1); 887 else { 888 return (0); 889 } 890 } 891 } 892 return (1); 893 } 894 895 void 896 bt_mark_probed_bio(isa_compat_io_t port) 897 { 898 if (port < BIO_DISABLED) 899 bt_mark_probed_iop(bt_board_ports[port]); 900 } 901 902 void 903 bt_mark_probed_iop(u_int ioport) 904 { 905 u_int i; 906 907 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 908 if (ioport == bt_isa_ports[i].addr) { 909 bt_isa_ports[i].probed = 1; 910 break; 911 } 912 } 913 } 914 915 void 916 bt_find_probe_range(int ioport, int *port_index, int *max_port_index) 917 { 918 if (ioport > 0) { 919 int i; 920 921 for (i = 0;i < BT_NUM_ISAPORTS; i++) 922 if (ioport <= bt_isa_ports[i].addr) 923 break; 924 if ((i >= BT_NUM_ISAPORTS) 925 || (ioport != bt_isa_ports[i].addr)) { 926 printf("\nbt_isa_probe: Invalid baseport of 0x%x specified.\n" 927 "bt_isa_probe: Nearest valid baseport is 0x%x.\n" 928 "bt_isa_probe: Failing probe.\n", 929 ioport, 930 (i < BT_NUM_ISAPORTS) 931 ? bt_isa_ports[i].addr 932 : bt_isa_ports[BT_NUM_ISAPORTS - 1].addr); 933 *port_index = *max_port_index = -1; 934 return; 935 } 936 *port_index = *max_port_index = bt_isa_ports[i].bio; 937 } else { 938 *port_index = 0; 939 *max_port_index = BT_NUM_ISAPORTS - 1; 940 } 941 } 942 943 int 944 bt_iop_from_bio(isa_compat_io_t bio_index) 945 { 946 if (bio_index >= 0 && bio_index < BT_NUM_ISAPORTS) 947 return (bt_board_ports[bio_index]); 948 return (-1); 949 } 950 951 952 static void 953 btallocccbs(struct bt_softc *bt) 954 { 955 struct bt_ccb *next_ccb; 956 struct sg_map_node *sg_map; 957 bus_addr_t physaddr; 958 bt_sg_t *segs; 959 int newcount; 960 int i; 961 962 if (bt->num_ccbs >= bt->max_ccbs) 963 /* Can't allocate any more */ 964 return; 965 966 next_ccb = &bt->bt_ccb_array[bt->num_ccbs]; 967 968 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_WAITOK); 969 970 /* Allocate S/G space for the next batch of CCBS */ 971 if (bus_dmamem_alloc(bt->sg_dmat, (void **)&sg_map->sg_vaddr, 972 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 973 free(sg_map, M_DEVBUF); 974 goto error_exit; 975 } 976 977 SLIST_INSERT_HEAD(&bt->sg_maps, sg_map, links); 978 979 bus_dmamap_load(bt->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 980 PAGE_SIZE, btmapsgs, bt, /*flags*/0); 981 982 segs = sg_map->sg_vaddr; 983 physaddr = sg_map->sg_physaddr; 984 985 newcount = (PAGE_SIZE / (BT_NSEG * sizeof(bt_sg_t))); 986 for (i = 0; bt->num_ccbs < bt->max_ccbs && i < newcount; i++) { 987 int error; 988 989 next_ccb->sg_list = segs; 990 next_ccb->sg_list_phys = physaddr; 991 next_ccb->flags = BCCB_FREE; 992 error = bus_dmamap_create(bt->buffer_dmat, /*flags*/0, 993 &next_ccb->dmamap); 994 if (error != 0) 995 break; 996 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, next_ccb, links); 997 segs += BT_NSEG; 998 physaddr += (BT_NSEG * sizeof(bt_sg_t)); 999 next_ccb++; 1000 bt->num_ccbs++; 1001 } 1002 1003 /* Reserve a CCB for error recovery */ 1004 if (bt->recovery_bccb == NULL) { 1005 bt->recovery_bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1006 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1007 } 1008 1009 if (SLIST_FIRST(&bt->free_bt_ccbs) != NULL) 1010 return; 1011 1012 error_exit: 1013 device_printf(bt->dev, "Can't malloc BCCBs\n"); 1014 } 1015 1016 static __inline void 1017 btfreeccb(struct bt_softc *bt, struct bt_ccb *bccb) 1018 { 1019 int s; 1020 1021 s = splcam(); 1022 if ((bccb->flags & BCCB_ACTIVE) != 0) 1023 LIST_REMOVE(&bccb->ccb->ccb_h, sim_links.le); 1024 if (bt->resource_shortage != 0 1025 && (bccb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 1026 bccb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1027 bt->resource_shortage = FALSE; 1028 } 1029 bccb->flags = BCCB_FREE; 1030 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, bccb, links); 1031 bt->active_ccbs--; 1032 splx(s); 1033 } 1034 1035 static __inline struct bt_ccb* 1036 btgetccb(struct bt_softc *bt) 1037 { 1038 struct bt_ccb* bccb; 1039 int s; 1040 1041 s = splcam(); 1042 if ((bccb = SLIST_FIRST(&bt->free_bt_ccbs)) != NULL) { 1043 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1044 bt->active_ccbs++; 1045 } else { 1046 btallocccbs(bt); 1047 bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1048 if (bccb != NULL) { 1049 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1050 bt->active_ccbs++; 1051 } 1052 } 1053 splx(s); 1054 1055 return (bccb); 1056 } 1057 1058 static void 1059 btaction(struct cam_sim *sim, union ccb *ccb) 1060 { 1061 struct bt_softc *bt; 1062 1063 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("btaction\n")); 1064 1065 bt = (struct bt_softc *)cam_sim_softc(sim); 1066 1067 switch (ccb->ccb_h.func_code) { 1068 /* Common cases first */ 1069 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 1070 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 1071 { 1072 struct bt_ccb *bccb; 1073 struct bt_hccb *hccb; 1074 1075 /* 1076 * get a bccb to use. 1077 */ 1078 if ((bccb = btgetccb(bt)) == NULL) { 1079 int s; 1080 1081 s = splcam(); 1082 bt->resource_shortage = TRUE; 1083 splx(s); 1084 xpt_freeze_simq(bt->sim, /*count*/1); 1085 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1086 xpt_done(ccb); 1087 return; 1088 } 1089 1090 hccb = &bccb->hccb; 1091 1092 /* 1093 * So we can find the BCCB when an abort is requested 1094 */ 1095 bccb->ccb = ccb; 1096 ccb->ccb_h.ccb_bccb_ptr = bccb; 1097 ccb->ccb_h.ccb_bt_ptr = bt; 1098 1099 /* 1100 * Put all the arguments for the xfer in the bccb 1101 */ 1102 hccb->target_id = ccb->ccb_h.target_id; 1103 hccb->target_lun = ccb->ccb_h.target_lun; 1104 hccb->btstat = 0; 1105 hccb->sdstat = 0; 1106 1107 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1108 struct ccb_scsiio *csio; 1109 struct ccb_hdr *ccbh; 1110 1111 csio = &ccb->csio; 1112 ccbh = &csio->ccb_h; 1113 hccb->opcode = INITIATOR_CCB_WRESID; 1114 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) ? 1 : 0; 1115 hccb->dataout =(ccb->ccb_h.flags & CAM_DIR_OUT) ? 1 : 0; 1116 hccb->cmd_len = csio->cdb_len; 1117 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) { 1118 ccb->ccb_h.status = CAM_REQ_INVALID; 1119 btfreeccb(bt, bccb); 1120 xpt_done(ccb); 1121 return; 1122 } 1123 hccb->sense_len = csio->sense_len; 1124 if ((ccbh->flags & CAM_TAG_ACTION_VALID) != 0 1125 && ccb->csio.tag_action != CAM_TAG_ACTION_NONE) { 1126 hccb->tag_enable = TRUE; 1127 hccb->tag_type = (ccb->csio.tag_action & 0x3); 1128 } else { 1129 hccb->tag_enable = FALSE; 1130 hccb->tag_type = 0; 1131 } 1132 if ((ccbh->flags & CAM_CDB_POINTER) != 0) { 1133 if ((ccbh->flags & CAM_CDB_PHYS) == 0) { 1134 bcopy(csio->cdb_io.cdb_ptr, 1135 hccb->scsi_cdb, hccb->cmd_len); 1136 } else { 1137 /* I guess I could map it in... */ 1138 ccbh->status = CAM_REQ_INVALID; 1139 btfreeccb(bt, bccb); 1140 xpt_done(ccb); 1141 return; 1142 } 1143 } else { 1144 bcopy(csio->cdb_io.cdb_bytes, 1145 hccb->scsi_cdb, hccb->cmd_len); 1146 } 1147 /* If need be, bounce our sense buffer */ 1148 if (bt->sense_buffers != NULL) { 1149 hccb->sense_addr = btsensepaddr(bt, bccb); 1150 } else { 1151 hccb->sense_addr = vtophys(&csio->sense_data); 1152 } 1153 /* 1154 * If we have any data to send with this command, 1155 * map it into bus space. 1156 */ 1157 /* Only use S/G if there is a transfer */ 1158 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1159 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) { 1160 /* 1161 * We've been given a pointer 1162 * to a single buffer. 1163 */ 1164 if ((ccbh->flags & CAM_DATA_PHYS)==0) { 1165 int s; 1166 int error; 1167 1168 s = splsoftvm(); 1169 error = bus_dmamap_load( 1170 bt->buffer_dmat, 1171 bccb->dmamap, 1172 csio->data_ptr, 1173 csio->dxfer_len, 1174 btexecuteccb, 1175 bccb, 1176 /*flags*/0); 1177 if (error == EINPROGRESS) { 1178 /* 1179 * So as to maintain 1180 * ordering, freeze the 1181 * controller queue 1182 * until our mapping is 1183 * returned. 1184 */ 1185 xpt_freeze_simq(bt->sim, 1186 1); 1187 csio->ccb_h.status |= 1188 CAM_RELEASE_SIMQ; 1189 } 1190 splx(s); 1191 } else { 1192 struct bus_dma_segment seg; 1193 1194 /* Pointer to physical buffer */ 1195 seg.ds_addr = 1196 (bus_addr_t)csio->data_ptr; 1197 seg.ds_len = csio->dxfer_len; 1198 btexecuteccb(bccb, &seg, 1, 0); 1199 } 1200 } else { 1201 struct bus_dma_segment *segs; 1202 1203 if ((ccbh->flags & CAM_DATA_PHYS) != 0) 1204 panic("btaction - Physical " 1205 "segment pointers " 1206 "unsupported"); 1207 1208 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0) 1209 panic("btaction - Virtual " 1210 "segment addresses " 1211 "unsupported"); 1212 1213 /* Just use the segments provided */ 1214 segs = (struct bus_dma_segment *) 1215 csio->data_ptr; 1216 btexecuteccb(bccb, segs, 1217 csio->sglist_cnt, 0); 1218 } 1219 } else { 1220 btexecuteccb(bccb, NULL, 0, 0); 1221 } 1222 } else { 1223 hccb->opcode = INITIATOR_BUS_DEV_RESET; 1224 /* No data transfer */ 1225 hccb->datain = TRUE; 1226 hccb->dataout = TRUE; 1227 hccb->cmd_len = 0; 1228 hccb->sense_len = 0; 1229 hccb->tag_enable = FALSE; 1230 hccb->tag_type = 0; 1231 btexecuteccb(bccb, NULL, 0, 0); 1232 } 1233 break; 1234 } 1235 case XPT_EN_LUN: /* Enable LUN as a target */ 1236 case XPT_TARGET_IO: /* Execute target I/O request */ 1237 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 1238 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 1239 case XPT_ABORT: /* Abort the specified CCB */ 1240 /* XXX Implement */ 1241 ccb->ccb_h.status = CAM_REQ_INVALID; 1242 xpt_done(ccb); 1243 break; 1244 case XPT_SET_TRAN_SETTINGS: 1245 { 1246 /* XXX Implement */ 1247 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 1248 xpt_done(ccb); 1249 break; 1250 } 1251 case XPT_GET_TRAN_SETTINGS: 1252 /* Get default/user set transfer settings for the target */ 1253 { 1254 struct ccb_trans_settings *cts; 1255 u_int target_mask; 1256 1257 cts = &ccb->cts; 1258 target_mask = 0x01 << ccb->ccb_h.target_id; 1259 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 1260 cts->flags = 0; 1261 if ((bt->disc_permitted & target_mask) != 0) 1262 cts->flags |= CCB_TRANS_DISC_ENB; 1263 if ((bt->tags_permitted & target_mask) != 0) 1264 cts->flags |= CCB_TRANS_TAG_ENB; 1265 if ((bt->wide_permitted & target_mask) != 0) 1266 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 1267 else 1268 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1269 if ((bt->ultra_permitted & target_mask) != 0) 1270 cts->sync_period = 12; 1271 else if ((bt->fast_permitted & target_mask) != 0) 1272 cts->sync_period = 25; 1273 else if ((bt->sync_permitted & target_mask) != 0) 1274 cts->sync_period = 50; 1275 else 1276 cts->sync_period = 0; 1277 1278 if (cts->sync_period != 0) 1279 cts->sync_offset = 15; 1280 1281 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1282 | CCB_TRANS_SYNC_OFFSET_VALID 1283 | CCB_TRANS_BUS_WIDTH_VALID 1284 | CCB_TRANS_DISC_VALID 1285 | CCB_TRANS_TQ_VALID; 1286 } else { 1287 btfetchtransinfo(bt, cts); 1288 } 1289 1290 ccb->ccb_h.status = CAM_REQ_CMP; 1291 xpt_done(ccb); 1292 break; 1293 } 1294 case XPT_CALC_GEOMETRY: 1295 { 1296 struct ccb_calc_geometry *ccg; 1297 u_int32_t size_mb; 1298 u_int32_t secs_per_cylinder; 1299 1300 ccg = &ccb->ccg; 1301 size_mb = ccg->volume_size 1302 / ((1024L * 1024L) / ccg->block_size); 1303 1304 if (size_mb >= 1024 && (bt->extended_trans != 0)) { 1305 if (size_mb >= 2048) { 1306 ccg->heads = 255; 1307 ccg->secs_per_track = 63; 1308 } else { 1309 ccg->heads = 128; 1310 ccg->secs_per_track = 32; 1311 } 1312 } else { 1313 ccg->heads = 64; 1314 ccg->secs_per_track = 32; 1315 } 1316 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 1317 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 1318 ccb->ccb_h.status = CAM_REQ_CMP; 1319 xpt_done(ccb); 1320 break; 1321 } 1322 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 1323 { 1324 btreset(bt, /*hardreset*/TRUE); 1325 ccb->ccb_h.status = CAM_REQ_CMP; 1326 xpt_done(ccb); 1327 break; 1328 } 1329 case XPT_TERM_IO: /* Terminate the I/O process */ 1330 /* XXX Implement */ 1331 ccb->ccb_h.status = CAM_REQ_INVALID; 1332 xpt_done(ccb); 1333 break; 1334 case XPT_PATH_INQ: /* Path routing inquiry */ 1335 { 1336 struct ccb_pathinq *cpi = &ccb->cpi; 1337 1338 cpi->version_num = 1; /* XXX??? */ 1339 cpi->hba_inquiry = PI_SDTR_ABLE; 1340 if (bt->tag_capable != 0) 1341 cpi->hba_inquiry |= PI_TAG_ABLE; 1342 if (bt->wide_bus != 0) 1343 cpi->hba_inquiry |= PI_WIDE_16; 1344 cpi->target_sprt = 0; 1345 cpi->hba_misc = 0; 1346 cpi->hba_eng_cnt = 0; 1347 cpi->max_target = bt->wide_bus ? 15 : 7; 1348 cpi->max_lun = 7; 1349 cpi->initiator_id = bt->scsi_id; 1350 cpi->bus_id = cam_sim_bus(sim); 1351 cpi->base_transfer_speed = 3300; 1352 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 1353 strncpy(cpi->hba_vid, "BusLogic", HBA_IDLEN); 1354 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 1355 cpi->unit_number = cam_sim_unit(sim); 1356 cpi->ccb_h.status = CAM_REQ_CMP; 1357 xpt_done(ccb); 1358 break; 1359 } 1360 default: 1361 ccb->ccb_h.status = CAM_REQ_INVALID; 1362 xpt_done(ccb); 1363 break; 1364 } 1365 } 1366 1367 static void 1368 btexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1369 { 1370 struct bt_ccb *bccb; 1371 union ccb *ccb; 1372 struct bt_softc *bt; 1373 int s; 1374 1375 bccb = (struct bt_ccb *)arg; 1376 ccb = bccb->ccb; 1377 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 1378 1379 if (error != 0) { 1380 if (error != EFBIG) 1381 device_printf(bt->dev, 1382 "Unexepected error 0x%x returned from " 1383 "bus_dmamap_load\n", error); 1384 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1385 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1386 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1387 } 1388 btfreeccb(bt, bccb); 1389 xpt_done(ccb); 1390 return; 1391 } 1392 1393 if (nseg != 0) { 1394 bt_sg_t *sg; 1395 bus_dma_segment_t *end_seg; 1396 bus_dmasync_op_t op; 1397 1398 end_seg = dm_segs + nseg; 1399 1400 /* Copy the segments into our SG list */ 1401 sg = bccb->sg_list; 1402 while (dm_segs < end_seg) { 1403 sg->len = dm_segs->ds_len; 1404 sg->addr = dm_segs->ds_addr; 1405 sg++; 1406 dm_segs++; 1407 } 1408 1409 if (nseg > 1) { 1410 bccb->hccb.opcode = INITIATOR_SG_CCB_WRESID; 1411 bccb->hccb.data_len = sizeof(bt_sg_t) * nseg; 1412 bccb->hccb.data_addr = bccb->sg_list_phys; 1413 } else { 1414 bccb->hccb.data_len = bccb->sg_list->len; 1415 bccb->hccb.data_addr = bccb->sg_list->addr; 1416 } 1417 1418 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1419 op = BUS_DMASYNC_PREREAD; 1420 else 1421 op = BUS_DMASYNC_PREWRITE; 1422 1423 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1424 1425 } else { 1426 bccb->hccb.opcode = INITIATOR_CCB; 1427 bccb->hccb.data_len = 0; 1428 bccb->hccb.data_addr = 0; 1429 } 1430 1431 s = splcam(); 1432 1433 /* 1434 * Last time we need to check if this CCB needs to 1435 * be aborted. 1436 */ 1437 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1438 if (nseg != 0) 1439 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1440 btfreeccb(bt, bccb); 1441 xpt_done(ccb); 1442 splx(s); 1443 return; 1444 } 1445 1446 bccb->flags = BCCB_ACTIVE; 1447 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1448 LIST_INSERT_HEAD(&bt->pending_ccbs, &ccb->ccb_h, sim_links.le); 1449 1450 callout_reset(&ccb->ccb_h.timeout_ch, (ccb->ccb_h.timeout * hz) / 1000, 1451 bttimeout, bccb); 1452 1453 /* Tell the adapter about this command */ 1454 bt->cur_outbox->ccb_addr = btccbvtop(bt, bccb); 1455 if (bt->cur_outbox->action_code != BMBO_FREE) { 1456 /* 1457 * We should never encounter a busy mailbox. 1458 * If we do, warn the user, and treat it as 1459 * a resource shortage. If the controller is 1460 * hung, one of the pending transactions will 1461 * timeout causing us to start recovery operations. 1462 */ 1463 device_printf(bt->dev, 1464 "Encountered busy mailbox with %d out of %d " 1465 "commands active!!!\n", bt->active_ccbs, 1466 bt->max_ccbs); 1467 callout_stop(&ccb->ccb_h.timeout_ch); 1468 if (nseg != 0) 1469 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1470 btfreeccb(bt, bccb); 1471 bt->resource_shortage = TRUE; 1472 xpt_freeze_simq(bt->sim, /*count*/1); 1473 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1474 xpt_done(ccb); 1475 return; 1476 } 1477 bt->cur_outbox->action_code = BMBO_START; 1478 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 1479 btnextoutbox(bt); 1480 splx(s); 1481 } 1482 1483 void 1484 bt_intr(void *arg) 1485 { 1486 struct bt_softc *bt; 1487 u_int intstat; 1488 1489 bt = (struct bt_softc *)arg; 1490 while (((intstat = bt_inb(bt, INTSTAT_REG)) & INTR_PENDING) != 0) { 1491 1492 if ((intstat & CMD_COMPLETE) != 0) { 1493 bt->latched_status = bt_inb(bt, STATUS_REG); 1494 bt->command_cmp = TRUE; 1495 } 1496 1497 bt_outb(bt, CONTROL_REG, RESET_INTR); 1498 1499 if ((intstat & IMB_LOADED) != 0) { 1500 while (bt->cur_inbox->comp_code != BMBI_FREE) { 1501 btdone(bt, 1502 btccbptov(bt, bt->cur_inbox->ccb_addr), 1503 bt->cur_inbox->comp_code); 1504 bt->cur_inbox->comp_code = BMBI_FREE; 1505 btnextinbox(bt); 1506 } 1507 } 1508 1509 if ((intstat & SCSI_BUS_RESET) != 0) { 1510 btreset(bt, /*hardreset*/FALSE); 1511 } 1512 } 1513 } 1514 1515 static void 1516 btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code) 1517 { 1518 union ccb *ccb; 1519 struct ccb_scsiio *csio; 1520 1521 ccb = bccb->ccb; 1522 csio = &bccb->ccb->csio; 1523 1524 if ((bccb->flags & BCCB_ACTIVE) == 0) { 1525 device_printf(bt->dev, 1526 "btdone - Attempt to free non-active BCCB %p\n", 1527 (void *)bccb); 1528 return; 1529 } 1530 1531 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1532 bus_dmasync_op_t op; 1533 1534 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1535 op = BUS_DMASYNC_POSTREAD; 1536 else 1537 op = BUS_DMASYNC_POSTWRITE; 1538 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1539 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1540 } 1541 1542 if (bccb == bt->recovery_bccb) { 1543 /* 1544 * The recovery BCCB does not have a CCB associated 1545 * with it, so short circuit the normal error handling. 1546 * We now traverse our list of pending CCBs and process 1547 * any that were terminated by the recovery CCBs action. 1548 * We also reinstate timeouts for all remaining, pending, 1549 * CCBs. 1550 */ 1551 struct cam_path *path; 1552 struct ccb_hdr *ccb_h; 1553 cam_status error; 1554 1555 /* Notify all clients that a BDR occured */ 1556 error = xpt_create_path(&path, /*periph*/NULL, 1557 cam_sim_path(bt->sim), 1558 bccb->hccb.target_id, 1559 CAM_LUN_WILDCARD); 1560 1561 if (error == CAM_REQ_CMP) 1562 xpt_async(AC_SENT_BDR, path, NULL); 1563 1564 ccb_h = LIST_FIRST(&bt->pending_ccbs); 1565 while (ccb_h != NULL) { 1566 struct bt_ccb *pending_bccb; 1567 1568 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1569 if (pending_bccb->hccb.target_id 1570 == bccb->hccb.target_id) { 1571 pending_bccb->hccb.btstat = BTSTAT_HA_BDR; 1572 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1573 btdone(bt, pending_bccb, BMBI_ERROR); 1574 } else { 1575 callout_reset(&ccb_h->timeout_ch, 1576 (ccb_h->timeout * hz) / 1000, 1577 bttimeout, pending_bccb); 1578 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1579 } 1580 } 1581 device_printf(bt->dev, "No longer in timeout\n"); 1582 return; 1583 } 1584 1585 callout_stop(&ccb->ccb_h.timeout_ch); 1586 1587 switch (comp_code) { 1588 case BMBI_FREE: 1589 device_printf(bt->dev, 1590 "btdone - CCB completed with free status!\n"); 1591 break; 1592 case BMBI_NOT_FOUND: 1593 device_printf(bt->dev, 1594 "btdone - CCB Abort failed to find CCB\n"); 1595 break; 1596 case BMBI_ABORT: 1597 case BMBI_ERROR: 1598 if (bootverbose) { 1599 printf("bt: ccb %p - error %x occured. " 1600 "btstat = %x, sdstat = %x\n", 1601 (void *)bccb, comp_code, bccb->hccb.btstat, 1602 bccb->hccb.sdstat); 1603 } 1604 /* An error occured */ 1605 switch(bccb->hccb.btstat) { 1606 case BTSTAT_DATARUN_ERROR: 1607 if (bccb->hccb.data_len == 0) { 1608 /* 1609 * At least firmware 4.22, does this 1610 * for a QUEUE FULL condition. 1611 */ 1612 bccb->hccb.sdstat = SCSI_STATUS_QUEUE_FULL; 1613 } else if (bccb->hccb.data_len < 0) { 1614 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1615 break; 1616 } 1617 /* FALLTHROUGH */ 1618 case BTSTAT_NOERROR: 1619 case BTSTAT_LINKED_CMD_COMPLETE: 1620 case BTSTAT_LINKED_CMD_FLAG_COMPLETE: 1621 case BTSTAT_DATAUNDERUN_ERROR: 1622 1623 csio->scsi_status = bccb->hccb.sdstat; 1624 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1625 switch(csio->scsi_status) { 1626 case SCSI_STATUS_CHECK_COND: 1627 case SCSI_STATUS_CMD_TERMINATED: 1628 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1629 /* Bounce sense back if necessary */ 1630 if (bt->sense_buffers != NULL) { 1631 csio->sense_data = 1632 *btsensevaddr(bt, bccb); 1633 } 1634 break; 1635 default: 1636 break; 1637 case SCSI_STATUS_OK: 1638 csio->ccb_h.status = CAM_REQ_CMP; 1639 break; 1640 } 1641 csio->resid = bccb->hccb.data_len; 1642 break; 1643 case BTSTAT_SELTIMEOUT: 1644 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1645 break; 1646 case BTSTAT_UNEXPECTED_BUSFREE: 1647 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1648 break; 1649 case BTSTAT_INVALID_PHASE: 1650 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1651 break; 1652 case BTSTAT_INVALID_ACTION_CODE: 1653 panic("%s: Inavlid Action code", bt_name(bt)); 1654 break; 1655 case BTSTAT_INVALID_OPCODE: 1656 panic("%s: Inavlid CCB Opcode code", bt_name(bt)); 1657 break; 1658 case BTSTAT_LINKED_CCB_LUN_MISMATCH: 1659 /* We don't even support linked commands... */ 1660 panic("%s: Linked CCB Lun Mismatch", bt_name(bt)); 1661 break; 1662 case BTSTAT_INVALID_CCB_OR_SG_PARAM: 1663 panic("%s: Invalid CCB or SG list", bt_name(bt)); 1664 break; 1665 case BTSTAT_AUTOSENSE_FAILED: 1666 csio->ccb_h.status = CAM_AUTOSENSE_FAIL; 1667 break; 1668 case BTSTAT_TAGGED_MSG_REJECTED: 1669 { 1670 struct ccb_trans_settings neg; 1671 1672 xpt_print_path(csio->ccb_h.path); 1673 printf("refuses tagged commands. Performing " 1674 "non-tagged I/O\n"); 1675 neg.flags = 0; 1676 neg.valid = CCB_TRANS_TQ_VALID; 1677 xpt_setup_ccb(&neg.ccb_h, csio->ccb_h.path, 1678 /*priority*/1); 1679 xpt_async(AC_TRANSFER_NEG, csio->ccb_h.path, &neg); 1680 bt->tags_permitted &= ~(0x01 << csio->ccb_h.target_id); 1681 csio->ccb_h.status = CAM_MSG_REJECT_REC; 1682 break; 1683 } 1684 case BTSTAT_UNSUPPORTED_MSG_RECEIVED: 1685 /* 1686 * XXX You would think that this is 1687 * a recoverable error... Hmmm. 1688 */ 1689 csio->ccb_h.status = CAM_REQ_CMP_ERR; 1690 break; 1691 case BTSTAT_HA_SOFTWARE_ERROR: 1692 case BTSTAT_HA_WATCHDOG_ERROR: 1693 case BTSTAT_HARDWARE_FAILURE: 1694 /* Hardware reset ??? Can we recover ??? */ 1695 csio->ccb_h.status = CAM_NO_HBA; 1696 break; 1697 case BTSTAT_TARGET_IGNORED_ATN: 1698 case BTSTAT_OTHER_SCSI_BUS_RESET: 1699 case BTSTAT_HA_SCSI_BUS_RESET: 1700 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1701 != CAM_CMD_TIMEOUT) 1702 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1703 break; 1704 case BTSTAT_HA_BDR: 1705 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) 1706 csio->ccb_h.status = CAM_BDR_SENT; 1707 else 1708 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1709 break; 1710 case BTSTAT_INVALID_RECONNECT: 1711 case BTSTAT_ABORT_QUEUE_GENERATED: 1712 csio->ccb_h.status = CAM_REQ_TERMIO; 1713 break; 1714 case BTSTAT_SCSI_PERROR_DETECTED: 1715 csio->ccb_h.status = CAM_UNCOR_PARITY; 1716 break; 1717 } 1718 if (csio->ccb_h.status != CAM_REQ_CMP) { 1719 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1720 csio->ccb_h.status |= CAM_DEV_QFRZN; 1721 } 1722 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1723 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1724 btfreeccb(bt, bccb); 1725 xpt_done(ccb); 1726 break; 1727 case BMBI_OK: 1728 /* All completed without incident */ 1729 ccb->ccb_h.status |= CAM_REQ_CMP; 1730 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1731 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1732 btfreeccb(bt, bccb); 1733 xpt_done(ccb); 1734 break; 1735 } 1736 } 1737 1738 static int 1739 btreset(struct bt_softc* bt, int hard_reset) 1740 { 1741 struct ccb_hdr *ccb_h; 1742 u_int status; 1743 u_int timeout; 1744 u_int8_t reset_type; 1745 1746 if (hard_reset != 0) 1747 reset_type = HARD_RESET; 1748 else 1749 reset_type = SOFT_RESET; 1750 bt_outb(bt, CONTROL_REG, reset_type); 1751 1752 /* Wait 5sec. for Diagnostic start */ 1753 timeout = 5 * 10000; 1754 while (--timeout) { 1755 status = bt_inb(bt, STATUS_REG); 1756 if ((status & DIAG_ACTIVE) != 0) 1757 break; 1758 DELAY(100); 1759 } 1760 if (timeout == 0) { 1761 if (bootverbose) 1762 printf("%s: btreset - Diagnostic Active failed to " 1763 "assert. status = 0x%x\n", bt_name(bt), status); 1764 return (ETIMEDOUT); 1765 } 1766 1767 /* Wait 10sec. for Diagnostic end */ 1768 timeout = 10 * 10000; 1769 while (--timeout) { 1770 status = bt_inb(bt, STATUS_REG); 1771 if ((status & DIAG_ACTIVE) == 0) 1772 break; 1773 DELAY(100); 1774 } 1775 if (timeout == 0) { 1776 panic("%s: btreset - Diagnostic Active failed to drop. " 1777 "status = 0x%x\n", bt_name(bt), status); 1778 return (ETIMEDOUT); 1779 } 1780 1781 /* Wait for the host adapter to become ready or report a failure */ 1782 timeout = 10000; 1783 while (--timeout) { 1784 status = bt_inb(bt, STATUS_REG); 1785 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1786 break; 1787 DELAY(100); 1788 } 1789 if (timeout == 0) { 1790 printf("%s: btreset - Host adapter failed to come ready. " 1791 "status = 0x%x\n", bt_name(bt), status); 1792 return (ETIMEDOUT); 1793 } 1794 1795 /* If the diagnostics failed, tell the user */ 1796 if ((status & DIAG_FAIL) != 0 1797 || (status & HA_READY) == 0) { 1798 printf("%s: btreset - Adapter failed diagnostics\n", 1799 bt_name(bt)); 1800 1801 if ((status & DATAIN_REG_READY) != 0) 1802 printf("%s: btreset - Host Adapter Error code = 0x%x\n", 1803 bt_name(bt), bt_inb(bt, DATAIN_REG)); 1804 return (ENXIO); 1805 } 1806 1807 /* If we've allocated mailboxes, initialize them */ 1808 if (bt->init_level > 4) 1809 btinitmboxes(bt); 1810 1811 /* If we've attached to the XPT, tell it about the event */ 1812 if (bt->path != NULL) 1813 xpt_async(AC_BUS_RESET, bt->path, NULL); 1814 1815 /* 1816 * Perform completion processing for all outstanding CCBs. 1817 */ 1818 while ((ccb_h = LIST_FIRST(&bt->pending_ccbs)) != NULL) { 1819 struct bt_ccb *pending_bccb; 1820 1821 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1822 pending_bccb->hccb.btstat = BTSTAT_HA_SCSI_BUS_RESET; 1823 btdone(bt, pending_bccb, BMBI_ERROR); 1824 } 1825 1826 return (0); 1827 } 1828 1829 /* 1830 * Send a command to the adapter. 1831 */ 1832 int 1833 bt_cmd(struct bt_softc *bt, bt_op_t opcode, u_int8_t *params, u_int param_len, 1834 u_int8_t *reply_data, u_int reply_len, u_int cmd_timeout) 1835 { 1836 u_int timeout; 1837 u_int status; 1838 u_int saved_status; 1839 u_int intstat; 1840 u_int reply_buf_size; 1841 int s; 1842 int cmd_complete; 1843 int error; 1844 1845 /* No data returned to start */ 1846 reply_buf_size = reply_len; 1847 reply_len = 0; 1848 intstat = 0; 1849 cmd_complete = 0; 1850 saved_status = 0; 1851 error = 0; 1852 1853 bt->command_cmp = 0; 1854 /* 1855 * Wait up to 10 sec. for the adapter to become 1856 * ready to accept commands. 1857 */ 1858 timeout = 100000; 1859 while (--timeout) { 1860 status = bt_inb(bt, STATUS_REG); 1861 if ((status & HA_READY) != 0 1862 && (status & CMD_REG_BUSY) == 0) 1863 break; 1864 /* 1865 * Throw away any pending data which may be 1866 * left over from earlier commands that we 1867 * timedout on. 1868 */ 1869 if ((status & DATAIN_REG_READY) != 0) 1870 (void)bt_inb(bt, DATAIN_REG); 1871 DELAY(100); 1872 } 1873 if (timeout == 0) { 1874 printf("%s: bt_cmd: Timeout waiting for adapter ready, " 1875 "status = 0x%x\n", bt_name(bt), status); 1876 return (ETIMEDOUT); 1877 } 1878 1879 /* 1880 * Send the opcode followed by any necessary parameter bytes. 1881 */ 1882 bt_outb(bt, COMMAND_REG, opcode); 1883 1884 /* 1885 * Wait for up to 1sec for each byte of the the 1886 * parameter list sent to be sent. 1887 */ 1888 timeout = 10000; 1889 while (param_len && --timeout) { 1890 DELAY(100); 1891 s = splcam(); 1892 status = bt_inb(bt, STATUS_REG); 1893 intstat = bt_inb(bt, INTSTAT_REG); 1894 splx(s); 1895 1896 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1897 == (INTR_PENDING|CMD_COMPLETE)) { 1898 saved_status = status; 1899 cmd_complete = 1; 1900 break; 1901 } 1902 if (bt->command_cmp != 0) { 1903 saved_status = bt->latched_status; 1904 cmd_complete = 1; 1905 break; 1906 } 1907 if ((status & DATAIN_REG_READY) != 0) 1908 break; 1909 if ((status & CMD_REG_BUSY) == 0) { 1910 bt_outb(bt, COMMAND_REG, *params++); 1911 param_len--; 1912 timeout = 10000; 1913 } 1914 } 1915 if (timeout == 0) { 1916 printf("%s: bt_cmd: Timeout sending parameters, " 1917 "status = 0x%x\n", bt_name(bt), status); 1918 cmd_complete = 1; 1919 saved_status = status; 1920 error = ETIMEDOUT; 1921 } 1922 1923 /* 1924 * Wait for the command to complete. 1925 */ 1926 while (cmd_complete == 0 && --cmd_timeout) { 1927 1928 s = splcam(); 1929 status = bt_inb(bt, STATUS_REG); 1930 intstat = bt_inb(bt, INTSTAT_REG); 1931 /* 1932 * It may be that this command was issued with 1933 * controller interrupts disabled. We'll never 1934 * get to our command if an incoming mailbox 1935 * interrupt is pending, so take care of completed 1936 * mailbox commands by calling our interrupt handler. 1937 */ 1938 if ((intstat & (INTR_PENDING|IMB_LOADED)) 1939 == (INTR_PENDING|IMB_LOADED)) 1940 bt_intr(bt); 1941 splx(s); 1942 1943 if (bt->command_cmp != 0) { 1944 /* 1945 * Our interrupt handler saw CMD_COMPLETE 1946 * status before we did. 1947 */ 1948 cmd_complete = 1; 1949 saved_status = bt->latched_status; 1950 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1951 == (INTR_PENDING|CMD_COMPLETE)) { 1952 /* 1953 * Our poll (in case interrupts are blocked) 1954 * saw the CMD_COMPLETE interrupt. 1955 */ 1956 cmd_complete = 1; 1957 saved_status = status; 1958 } else if (opcode == BOP_MODIFY_IO_ADDR 1959 && (status & CMD_REG_BUSY) == 0) { 1960 /* 1961 * The BOP_MODIFY_IO_ADDR does not issue a CMD_COMPLETE, 1962 * but it should update the status register. So, we 1963 * consider this command complete when the CMD_REG_BUSY 1964 * status clears. 1965 */ 1966 saved_status = status; 1967 cmd_complete = 1; 1968 } else if ((status & DATAIN_REG_READY) != 0) { 1969 u_int8_t data; 1970 1971 data = bt_inb(bt, DATAIN_REG); 1972 if (reply_len < reply_buf_size) { 1973 *reply_data++ = data; 1974 } else { 1975 printf("%s: bt_cmd - Discarded reply data byte " 1976 "for opcode 0x%x\n", bt_name(bt), 1977 opcode); 1978 } 1979 /* 1980 * Reset timeout to ensure at least a second 1981 * between response bytes. 1982 */ 1983 cmd_timeout = MAX(cmd_timeout, 10000); 1984 reply_len++; 1985 1986 } else if ((opcode == BOP_FETCH_LRAM) 1987 && (status & HA_READY) != 0) { 1988 saved_status = status; 1989 cmd_complete = 1; 1990 } 1991 DELAY(100); 1992 } 1993 if (cmd_timeout == 0) { 1994 printf("%s: bt_cmd: Timeout waiting for command (%x) " 1995 "to complete.\n%s: status = 0x%x, intstat = 0x%x, " 1996 "rlen %d\n", bt_name(bt), opcode, 1997 bt_name(bt), status, intstat, reply_len); 1998 error = (ETIMEDOUT); 1999 } 2000 2001 /* 2002 * Clear any pending interrupts. Block interrupts so our 2003 * interrupt handler is not re-entered. 2004 */ 2005 s = splcam(); 2006 bt_intr(bt); 2007 splx(s); 2008 2009 if (error != 0) 2010 return (error); 2011 2012 /* 2013 * If the command was rejected by the controller, tell the caller. 2014 */ 2015 if ((saved_status & CMD_INVALID) != 0) { 2016 /* 2017 * Some early adapters may not recover properly from 2018 * an invalid command. If it appears that the controller 2019 * has wedged (i.e. status was not cleared by our interrupt 2020 * reset above), perform a soft reset. 2021 */ 2022 if (bootverbose) 2023 printf("%s: Invalid Command 0x%x\n", bt_name(bt), 2024 opcode); 2025 DELAY(1000); 2026 status = bt_inb(bt, STATUS_REG); 2027 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 2028 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 2029 || (status & (HA_READY|INIT_REQUIRED)) 2030 != (HA_READY|INIT_REQUIRED)) { 2031 btreset(bt, /*hard_reset*/FALSE); 2032 } 2033 return (EINVAL); 2034 } 2035 2036 if (param_len > 0) { 2037 /* The controller did not accept the full argument list */ 2038 return (E2BIG); 2039 } 2040 2041 if (reply_len != reply_buf_size) { 2042 /* Too much or too little data received */ 2043 return (EMSGSIZE); 2044 } 2045 2046 /* We were successful */ 2047 return (0); 2048 } 2049 2050 static int 2051 btinitmboxes(struct bt_softc *bt) { 2052 init_32b_mbox_params_t init_mbox; 2053 int error; 2054 2055 bzero(bt->in_boxes, sizeof(bt_mbox_in_t) * bt->num_boxes); 2056 bzero(bt->out_boxes, sizeof(bt_mbox_out_t) * bt->num_boxes); 2057 bt->cur_inbox = bt->in_boxes; 2058 bt->last_inbox = bt->in_boxes + bt->num_boxes - 1; 2059 bt->cur_outbox = bt->out_boxes; 2060 bt->last_outbox = bt->out_boxes + bt->num_boxes - 1; 2061 2062 /* Tell the adapter about them */ 2063 init_mbox.num_boxes = bt->num_boxes; 2064 init_mbox.base_addr[0] = bt->mailbox_physbase & 0xFF; 2065 init_mbox.base_addr[1] = (bt->mailbox_physbase >> 8) & 0xFF; 2066 init_mbox.base_addr[2] = (bt->mailbox_physbase >> 16) & 0xFF; 2067 init_mbox.base_addr[3] = (bt->mailbox_physbase >> 24) & 0xFF; 2068 error = bt_cmd(bt, BOP_INITIALIZE_32BMBOX, (u_int8_t *)&init_mbox, 2069 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 2070 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 2071 2072 if (error != 0) 2073 printf("btinitmboxes: Initialization command failed\n"); 2074 else if (bt->strict_rr != 0) { 2075 /* 2076 * If the controller supports 2077 * strict round robin mode, 2078 * enable it 2079 */ 2080 u_int8_t param; 2081 2082 param = 0; 2083 error = bt_cmd(bt, BOP_ENABLE_STRICT_RR, ¶m, 1, 2084 /*reply_buf*/NULL, /*reply_len*/0, 2085 DEFAULT_CMD_TIMEOUT); 2086 2087 if (error != 0) { 2088 printf("btinitmboxes: Unable to enable strict RR\n"); 2089 error = 0; 2090 } else if (bootverbose) { 2091 printf("%s: Using Strict Round Robin Mailbox Mode\n", 2092 bt_name(bt)); 2093 } 2094 } 2095 2096 return (error); 2097 } 2098 2099 /* 2100 * Update the XPT's idea of the negotiated transfer 2101 * parameters for a particular target. 2102 */ 2103 static void 2104 btfetchtransinfo(struct bt_softc *bt, struct ccb_trans_settings* cts) 2105 { 2106 setup_data_t setup_info; 2107 u_int target; 2108 u_int targ_offset; 2109 u_int targ_mask; 2110 u_int sync_period; 2111 int error; 2112 u_int8_t param; 2113 targ_syncinfo_t sync_info; 2114 2115 target = cts->ccb_h.target_id; 2116 targ_offset = (target & 0x7); 2117 targ_mask = (0x01 << targ_offset); 2118 2119 /* 2120 * Inquire Setup Information. This command retreives the 2121 * Wide negotiation status for recent adapters as well as 2122 * the sync info for older models. 2123 */ 2124 param = sizeof(setup_info); 2125 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 2126 (u_int8_t*)&setup_info, sizeof(setup_info), 2127 DEFAULT_CMD_TIMEOUT); 2128 2129 if (error != 0) { 2130 printf("%s: btfetchtransinfo - Inquire Setup Info Failed %x\n", 2131 bt_name(bt), error); 2132 cts->valid = 0; 2133 return; 2134 } 2135 2136 sync_info = (target < 8) ? setup_info.low_syncinfo[targ_offset] 2137 : setup_info.high_syncinfo[targ_offset]; 2138 2139 if (sync_info.sync == 0) 2140 cts->sync_offset = 0; 2141 else 2142 cts->sync_offset = sync_info.offset; 2143 2144 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2145 if (strcmp(bt->firmware_ver, "5.06L") >= 0) { 2146 u_int wide_active; 2147 2148 wide_active = 2149 (target < 8) ? (setup_info.low_wide_active & targ_mask) 2150 : (setup_info.high_wide_active & targ_mask); 2151 2152 if (wide_active) 2153 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2154 } else if ((bt->wide_permitted & targ_mask) != 0) { 2155 struct ccb_getdev cgd; 2156 2157 /* 2158 * Prior to rev 5.06L, wide status isn't provided, 2159 * so we "guess" that wide transfers are in effect 2160 * if the user settings allow for wide and the inquiry 2161 * data for the device indicates that it can handle 2162 * wide transfers. 2163 */ 2164 xpt_setup_ccb(&cgd.ccb_h, cts->ccb_h.path, /*priority*/1); 2165 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 2166 xpt_action((union ccb *)&cgd); 2167 if ((cgd.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP 2168 && (cgd.inq_data.flags & SID_WBus16) != 0) 2169 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2170 } 2171 2172 if (bt->firmware_ver[0] >= '3') { 2173 /* 2174 * For adapters that can do fast or ultra speeds, 2175 * use the more exact Target Sync Information command. 2176 */ 2177 target_sync_info_data_t sync_info; 2178 2179 param = sizeof(sync_info); 2180 error = bt_cmd(bt, BOP_TARG_SYNC_INFO, ¶m, /*paramlen*/1, 2181 (u_int8_t*)&sync_info, sizeof(sync_info), 2182 DEFAULT_CMD_TIMEOUT); 2183 2184 if (error != 0) { 2185 printf("%s: btfetchtransinfo - Inquire Sync " 2186 "Info Failed 0x%x\n", bt_name(bt), error); 2187 cts->valid = 0; 2188 return; 2189 } 2190 sync_period = sync_info.sync_rate[target] * 100; 2191 } else { 2192 sync_period = 2000 + (500 * sync_info.period); 2193 } 2194 2195 /* Convert ns value to standard SCSI sync rate */ 2196 if (cts->sync_offset != 0) 2197 cts->sync_period = scsi_calc_syncparam(sync_period); 2198 else 2199 cts->sync_period = 0; 2200 2201 cts->valid = CCB_TRANS_SYNC_RATE_VALID 2202 | CCB_TRANS_SYNC_OFFSET_VALID 2203 | CCB_TRANS_BUS_WIDTH_VALID; 2204 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 2205 } 2206 2207 static void 2208 btmapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2209 { 2210 struct bt_softc* bt; 2211 2212 bt = (struct bt_softc*)arg; 2213 bt->mailbox_physbase = segs->ds_addr; 2214 } 2215 2216 static void 2217 btmapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2218 { 2219 struct bt_softc* bt; 2220 2221 bt = (struct bt_softc*)arg; 2222 bt->bt_ccb_physbase = segs->ds_addr; 2223 } 2224 2225 static void 2226 btmapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2227 { 2228 2229 struct bt_softc* bt; 2230 2231 bt = (struct bt_softc*)arg; 2232 SLIST_FIRST(&bt->sg_maps)->sg_physaddr = segs->ds_addr; 2233 } 2234 2235 static void 2236 btpoll(struct cam_sim *sim) 2237 { 2238 bt_intr(cam_sim_softc(sim)); 2239 } 2240 2241 void 2242 bttimeout(void *arg) 2243 { 2244 struct bt_ccb *bccb; 2245 union ccb *ccb; 2246 struct bt_softc *bt; 2247 int s; 2248 2249 bccb = (struct bt_ccb *)arg; 2250 ccb = bccb->ccb; 2251 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 2252 xpt_print_path(ccb->ccb_h.path); 2253 printf("CCB %p - timed out\n", (void *)bccb); 2254 2255 s = splcam(); 2256 2257 if ((bccb->flags & BCCB_ACTIVE) == 0) { 2258 xpt_print_path(ccb->ccb_h.path); 2259 printf("CCB %p - timed out CCB already completed\n", 2260 (void *)bccb); 2261 splx(s); 2262 return; 2263 } 2264 2265 /* 2266 * In order to simplify the recovery process, we ask the XPT 2267 * layer to halt the queue of new transactions and we traverse 2268 * the list of pending CCBs and remove their timeouts. This 2269 * means that the driver attempts to clear only one error 2270 * condition at a time. In general, timeouts that occur 2271 * close together are related anyway, so there is no benefit 2272 * in attempting to handle errors in parrallel. Timeouts will 2273 * be reinstated when the recovery process ends. 2274 */ 2275 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) { 2276 struct ccb_hdr *ccb_h; 2277 2278 if ((bccb->flags & BCCB_RELEASE_SIMQ) == 0) { 2279 xpt_freeze_simq(bt->sim, /*count*/1); 2280 bccb->flags |= BCCB_RELEASE_SIMQ; 2281 } 2282 2283 ccb_h = LIST_FIRST(&bt->pending_ccbs); 2284 while (ccb_h != NULL) { 2285 struct bt_ccb *pending_bccb; 2286 2287 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 2288 callout_stop(&ccb_h->timeout_ch); 2289 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 2290 } 2291 } 2292 2293 if ((bccb->flags & BCCB_DEVICE_RESET) != 0 2294 || bt->cur_outbox->action_code != BMBO_FREE 2295 || ((bccb->hccb.tag_enable == TRUE) 2296 && (bt->firmware_ver[0] < '5'))) { 2297 /* 2298 * Try a full host adapter/SCSI bus reset. 2299 * We do this only if we have already attempted 2300 * to clear the condition with a BDR, or we cannot 2301 * attempt a BDR for lack of mailbox resources 2302 * or because of faulty firmware. It turns out 2303 * that firmware versions prior to 5.xx treat BDRs 2304 * as untagged commands that cannot be sent until 2305 * all outstanding tagged commands have been processed. 2306 * This makes it somewhat difficult to use a BDR to 2307 * clear up a problem with an uncompleted tagged command. 2308 */ 2309 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 2310 btreset(bt, /*hardreset*/TRUE); 2311 printf("%s: No longer in timeout\n", bt_name(bt)); 2312 } else { 2313 /* 2314 * Send a Bus Device Reset message: 2315 * The target that is holding up the bus may not 2316 * be the same as the one that triggered this timeout 2317 * (different commands have different timeout lengths), 2318 * but we have no way of determining this from our 2319 * timeout handler. Our strategy here is to queue a 2320 * BDR message to the target of the timed out command. 2321 * If this fails, we'll get another timeout 2 seconds 2322 * later which will attempt a bus reset. 2323 */ 2324 bccb->flags |= BCCB_DEVICE_RESET; 2325 callout_reset(&ccb->ccb_h.timeout_ch, 2 * hz, bttimeout, bccb); 2326 2327 bt->recovery_bccb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 2328 2329 /* No Data Transfer */ 2330 bt->recovery_bccb->hccb.datain = TRUE; 2331 bt->recovery_bccb->hccb.dataout = TRUE; 2332 bt->recovery_bccb->hccb.btstat = 0; 2333 bt->recovery_bccb->hccb.sdstat = 0; 2334 bt->recovery_bccb->hccb.target_id = ccb->ccb_h.target_id; 2335 2336 /* Tell the adapter about this command */ 2337 bt->cur_outbox->ccb_addr = btccbvtop(bt, bt->recovery_bccb); 2338 bt->cur_outbox->action_code = BMBO_START; 2339 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 2340 btnextoutbox(bt); 2341 } 2342 2343 splx(s); 2344 } 2345 2346