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 1.4 2003/08/07 21:16:52 dillon 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 if (bt->sim == NULL) { 849 cam_simq_free(devq); 850 return (ENOMEM); 851 } 852 853 if (xpt_bus_register(bt->sim, 0) != CAM_SUCCESS) { 854 cam_sim_free(bt->sim, /*free_devq*/TRUE); 855 return (ENXIO); 856 } 857 858 if (xpt_create_path(&bt->path, /*periph*/NULL, 859 cam_sim_path(bt->sim), CAM_TARGET_WILDCARD, 860 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 861 xpt_bus_deregister(cam_sim_path(bt->sim)); 862 cam_sim_free(bt->sim, /*free_devq*/TRUE); 863 return (ENXIO); 864 } 865 866 /* 867 * Setup interrupt. 868 */ 869 error = bus_setup_intr(dev, bt->irq, INTR_TYPE_CAM, 870 bt_intr, bt, &bt->ih); 871 if (error) { 872 device_printf(dev, "bus_setup_intr() failed: %d\n", error); 873 return (error); 874 } 875 876 return (0); 877 } 878 879 int 880 bt_check_probed_iop(u_int ioport) 881 { 882 u_int i; 883 884 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 885 if (bt_isa_ports[i].addr == ioport) { 886 if (bt_isa_ports[i].probed != 0) 887 return (1); 888 else { 889 return (0); 890 } 891 } 892 } 893 return (1); 894 } 895 896 void 897 bt_mark_probed_bio(isa_compat_io_t port) 898 { 899 if (port < BIO_DISABLED) 900 bt_mark_probed_iop(bt_board_ports[port]); 901 } 902 903 void 904 bt_mark_probed_iop(u_int ioport) 905 { 906 u_int i; 907 908 for (i = 0; i < BT_NUM_ISAPORTS; i++) { 909 if (ioport == bt_isa_ports[i].addr) { 910 bt_isa_ports[i].probed = 1; 911 break; 912 } 913 } 914 } 915 916 void 917 bt_find_probe_range(int ioport, int *port_index, int *max_port_index) 918 { 919 if (ioport > 0) { 920 int i; 921 922 for (i = 0;i < BT_NUM_ISAPORTS; i++) 923 if (ioport <= bt_isa_ports[i].addr) 924 break; 925 if ((i >= BT_NUM_ISAPORTS) 926 || (ioport != bt_isa_ports[i].addr)) { 927 printf(" 928 bt_isa_probe: Invalid baseport of 0x%x specified. 929 bt_isa_probe: Nearest valid baseport is 0x%x. 930 bt_isa_probe: Failing probe.\n", 931 ioport, 932 (i < BT_NUM_ISAPORTS) 933 ? bt_isa_ports[i].addr 934 : bt_isa_ports[BT_NUM_ISAPORTS - 1].addr); 935 *port_index = *max_port_index = -1; 936 return; 937 } 938 *port_index = *max_port_index = bt_isa_ports[i].bio; 939 } else { 940 *port_index = 0; 941 *max_port_index = BT_NUM_ISAPORTS - 1; 942 } 943 } 944 945 int 946 bt_iop_from_bio(isa_compat_io_t bio_index) 947 { 948 if (bio_index >= 0 && bio_index < BT_NUM_ISAPORTS) 949 return (bt_board_ports[bio_index]); 950 return (-1); 951 } 952 953 954 static void 955 btallocccbs(struct bt_softc *bt) 956 { 957 struct bt_ccb *next_ccb; 958 struct sg_map_node *sg_map; 959 bus_addr_t physaddr; 960 bt_sg_t *segs; 961 int newcount; 962 int i; 963 964 if (bt->num_ccbs >= bt->max_ccbs) 965 /* Can't allocate any more */ 966 return; 967 968 next_ccb = &bt->bt_ccb_array[bt->num_ccbs]; 969 970 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT); 971 972 if (sg_map == NULL) 973 goto error_exit; 974 975 /* Allocate S/G space for the next batch of CCBS */ 976 if (bus_dmamem_alloc(bt->sg_dmat, (void **)&sg_map->sg_vaddr, 977 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 978 free(sg_map, M_DEVBUF); 979 goto error_exit; 980 } 981 982 SLIST_INSERT_HEAD(&bt->sg_maps, sg_map, links); 983 984 bus_dmamap_load(bt->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 985 PAGE_SIZE, btmapsgs, bt, /*flags*/0); 986 987 segs = sg_map->sg_vaddr; 988 physaddr = sg_map->sg_physaddr; 989 990 newcount = (PAGE_SIZE / (BT_NSEG * sizeof(bt_sg_t))); 991 for (i = 0; bt->num_ccbs < bt->max_ccbs && i < newcount; i++) { 992 int error; 993 994 next_ccb->sg_list = segs; 995 next_ccb->sg_list_phys = physaddr; 996 next_ccb->flags = BCCB_FREE; 997 error = bus_dmamap_create(bt->buffer_dmat, /*flags*/0, 998 &next_ccb->dmamap); 999 if (error != 0) 1000 break; 1001 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, next_ccb, links); 1002 segs += BT_NSEG; 1003 physaddr += (BT_NSEG * sizeof(bt_sg_t)); 1004 next_ccb++; 1005 bt->num_ccbs++; 1006 } 1007 1008 /* Reserve a CCB for error recovery */ 1009 if (bt->recovery_bccb == NULL) { 1010 bt->recovery_bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1011 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1012 } 1013 1014 if (SLIST_FIRST(&bt->free_bt_ccbs) != NULL) 1015 return; 1016 1017 error_exit: 1018 device_printf(bt->dev, "Can't malloc BCCBs\n"); 1019 } 1020 1021 static __inline void 1022 btfreeccb(struct bt_softc *bt, struct bt_ccb *bccb) 1023 { 1024 int s; 1025 1026 s = splcam(); 1027 if ((bccb->flags & BCCB_ACTIVE) != 0) 1028 LIST_REMOVE(&bccb->ccb->ccb_h, sim_links.le); 1029 if (bt->resource_shortage != 0 1030 && (bccb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 1031 bccb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1032 bt->resource_shortage = FALSE; 1033 } 1034 bccb->flags = BCCB_FREE; 1035 SLIST_INSERT_HEAD(&bt->free_bt_ccbs, bccb, links); 1036 bt->active_ccbs--; 1037 splx(s); 1038 } 1039 1040 static __inline struct bt_ccb* 1041 btgetccb(struct bt_softc *bt) 1042 { 1043 struct bt_ccb* bccb; 1044 int s; 1045 1046 s = splcam(); 1047 if ((bccb = SLIST_FIRST(&bt->free_bt_ccbs)) != NULL) { 1048 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1049 bt->active_ccbs++; 1050 } else { 1051 btallocccbs(bt); 1052 bccb = SLIST_FIRST(&bt->free_bt_ccbs); 1053 if (bccb != NULL) { 1054 SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links); 1055 bt->active_ccbs++; 1056 } 1057 } 1058 splx(s); 1059 1060 return (bccb); 1061 } 1062 1063 static void 1064 btaction(struct cam_sim *sim, union ccb *ccb) 1065 { 1066 struct bt_softc *bt; 1067 1068 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("btaction\n")); 1069 1070 bt = (struct bt_softc *)cam_sim_softc(sim); 1071 1072 switch (ccb->ccb_h.func_code) { 1073 /* Common cases first */ 1074 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 1075 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 1076 { 1077 struct bt_ccb *bccb; 1078 struct bt_hccb *hccb; 1079 1080 /* 1081 * get a bccb to use. 1082 */ 1083 if ((bccb = btgetccb(bt)) == NULL) { 1084 int s; 1085 1086 s = splcam(); 1087 bt->resource_shortage = TRUE; 1088 splx(s); 1089 xpt_freeze_simq(bt->sim, /*count*/1); 1090 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1091 xpt_done(ccb); 1092 return; 1093 } 1094 1095 hccb = &bccb->hccb; 1096 1097 /* 1098 * So we can find the BCCB when an abort is requested 1099 */ 1100 bccb->ccb = ccb; 1101 ccb->ccb_h.ccb_bccb_ptr = bccb; 1102 ccb->ccb_h.ccb_bt_ptr = bt; 1103 1104 /* 1105 * Put all the arguments for the xfer in the bccb 1106 */ 1107 hccb->target_id = ccb->ccb_h.target_id; 1108 hccb->target_lun = ccb->ccb_h.target_lun; 1109 hccb->btstat = 0; 1110 hccb->sdstat = 0; 1111 1112 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 1113 struct ccb_scsiio *csio; 1114 struct ccb_hdr *ccbh; 1115 1116 csio = &ccb->csio; 1117 ccbh = &csio->ccb_h; 1118 hccb->opcode = INITIATOR_CCB_WRESID; 1119 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) ? 1 : 0; 1120 hccb->dataout =(ccb->ccb_h.flags & CAM_DIR_OUT) ? 1 : 0; 1121 hccb->cmd_len = csio->cdb_len; 1122 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) { 1123 ccb->ccb_h.status = CAM_REQ_INVALID; 1124 btfreeccb(bt, bccb); 1125 xpt_done(ccb); 1126 return; 1127 } 1128 hccb->sense_len = csio->sense_len; 1129 if ((ccbh->flags & CAM_TAG_ACTION_VALID) != 0 1130 && ccb->csio.tag_action != CAM_TAG_ACTION_NONE) { 1131 hccb->tag_enable = TRUE; 1132 hccb->tag_type = (ccb->csio.tag_action & 0x3); 1133 } else { 1134 hccb->tag_enable = FALSE; 1135 hccb->tag_type = 0; 1136 } 1137 if ((ccbh->flags & CAM_CDB_POINTER) != 0) { 1138 if ((ccbh->flags & CAM_CDB_PHYS) == 0) { 1139 bcopy(csio->cdb_io.cdb_ptr, 1140 hccb->scsi_cdb, hccb->cmd_len); 1141 } else { 1142 /* I guess I could map it in... */ 1143 ccbh->status = CAM_REQ_INVALID; 1144 btfreeccb(bt, bccb); 1145 xpt_done(ccb); 1146 return; 1147 } 1148 } else { 1149 bcopy(csio->cdb_io.cdb_bytes, 1150 hccb->scsi_cdb, hccb->cmd_len); 1151 } 1152 /* If need be, bounce our sense buffer */ 1153 if (bt->sense_buffers != NULL) { 1154 hccb->sense_addr = btsensepaddr(bt, bccb); 1155 } else { 1156 hccb->sense_addr = vtophys(&csio->sense_data); 1157 } 1158 /* 1159 * If we have any data to send with this command, 1160 * map it into bus space. 1161 */ 1162 /* Only use S/G if there is a transfer */ 1163 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1164 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) { 1165 /* 1166 * We've been given a pointer 1167 * to a single buffer. 1168 */ 1169 if ((ccbh->flags & CAM_DATA_PHYS)==0) { 1170 int s; 1171 int error; 1172 1173 s = splsoftvm(); 1174 error = bus_dmamap_load( 1175 bt->buffer_dmat, 1176 bccb->dmamap, 1177 csio->data_ptr, 1178 csio->dxfer_len, 1179 btexecuteccb, 1180 bccb, 1181 /*flags*/0); 1182 if (error == EINPROGRESS) { 1183 /* 1184 * So as to maintain 1185 * ordering, freeze the 1186 * controller queue 1187 * until our mapping is 1188 * returned. 1189 */ 1190 xpt_freeze_simq(bt->sim, 1191 1); 1192 csio->ccb_h.status |= 1193 CAM_RELEASE_SIMQ; 1194 } 1195 splx(s); 1196 } else { 1197 struct bus_dma_segment seg; 1198 1199 /* Pointer to physical buffer */ 1200 seg.ds_addr = 1201 (bus_addr_t)csio->data_ptr; 1202 seg.ds_len = csio->dxfer_len; 1203 btexecuteccb(bccb, &seg, 1, 0); 1204 } 1205 } else { 1206 struct bus_dma_segment *segs; 1207 1208 if ((ccbh->flags & CAM_DATA_PHYS) != 0) 1209 panic("btaction - Physical " 1210 "segment pointers " 1211 "unsupported"); 1212 1213 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0) 1214 panic("btaction - Virtual " 1215 "segment addresses " 1216 "unsupported"); 1217 1218 /* Just use the segments provided */ 1219 segs = (struct bus_dma_segment *) 1220 csio->data_ptr; 1221 btexecuteccb(bccb, segs, 1222 csio->sglist_cnt, 0); 1223 } 1224 } else { 1225 btexecuteccb(bccb, NULL, 0, 0); 1226 } 1227 } else { 1228 hccb->opcode = INITIATOR_BUS_DEV_RESET; 1229 /* No data transfer */ 1230 hccb->datain = TRUE; 1231 hccb->dataout = TRUE; 1232 hccb->cmd_len = 0; 1233 hccb->sense_len = 0; 1234 hccb->tag_enable = FALSE; 1235 hccb->tag_type = 0; 1236 btexecuteccb(bccb, NULL, 0, 0); 1237 } 1238 break; 1239 } 1240 case XPT_EN_LUN: /* Enable LUN as a target */ 1241 case XPT_TARGET_IO: /* Execute target I/O request */ 1242 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 1243 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 1244 case XPT_ABORT: /* Abort the specified CCB */ 1245 /* XXX Implement */ 1246 ccb->ccb_h.status = CAM_REQ_INVALID; 1247 xpt_done(ccb); 1248 break; 1249 case XPT_SET_TRAN_SETTINGS: 1250 { 1251 /* XXX Implement */ 1252 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 1253 xpt_done(ccb); 1254 break; 1255 } 1256 case XPT_GET_TRAN_SETTINGS: 1257 /* Get default/user set transfer settings for the target */ 1258 { 1259 struct ccb_trans_settings *cts; 1260 u_int target_mask; 1261 1262 cts = &ccb->cts; 1263 target_mask = 0x01 << ccb->ccb_h.target_id; 1264 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 1265 cts->flags = 0; 1266 if ((bt->disc_permitted & target_mask) != 0) 1267 cts->flags |= CCB_TRANS_DISC_ENB; 1268 if ((bt->tags_permitted & target_mask) != 0) 1269 cts->flags |= CCB_TRANS_TAG_ENB; 1270 if ((bt->wide_permitted & target_mask) != 0) 1271 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 1272 else 1273 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1274 if ((bt->ultra_permitted & target_mask) != 0) 1275 cts->sync_period = 12; 1276 else if ((bt->fast_permitted & target_mask) != 0) 1277 cts->sync_period = 25; 1278 else if ((bt->sync_permitted & target_mask) != 0) 1279 cts->sync_period = 50; 1280 else 1281 cts->sync_period = 0; 1282 1283 if (cts->sync_period != 0) 1284 cts->sync_offset = 15; 1285 1286 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1287 | CCB_TRANS_SYNC_OFFSET_VALID 1288 | CCB_TRANS_BUS_WIDTH_VALID 1289 | CCB_TRANS_DISC_VALID 1290 | CCB_TRANS_TQ_VALID; 1291 } else { 1292 btfetchtransinfo(bt, cts); 1293 } 1294 1295 ccb->ccb_h.status = CAM_REQ_CMP; 1296 xpt_done(ccb); 1297 break; 1298 } 1299 case XPT_CALC_GEOMETRY: 1300 { 1301 struct ccb_calc_geometry *ccg; 1302 u_int32_t size_mb; 1303 u_int32_t secs_per_cylinder; 1304 1305 ccg = &ccb->ccg; 1306 size_mb = ccg->volume_size 1307 / ((1024L * 1024L) / ccg->block_size); 1308 1309 if (size_mb >= 1024 && (bt->extended_trans != 0)) { 1310 if (size_mb >= 2048) { 1311 ccg->heads = 255; 1312 ccg->secs_per_track = 63; 1313 } else { 1314 ccg->heads = 128; 1315 ccg->secs_per_track = 32; 1316 } 1317 } else { 1318 ccg->heads = 64; 1319 ccg->secs_per_track = 32; 1320 } 1321 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 1322 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 1323 ccb->ccb_h.status = CAM_REQ_CMP; 1324 xpt_done(ccb); 1325 break; 1326 } 1327 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 1328 { 1329 btreset(bt, /*hardreset*/TRUE); 1330 ccb->ccb_h.status = CAM_REQ_CMP; 1331 xpt_done(ccb); 1332 break; 1333 } 1334 case XPT_TERM_IO: /* Terminate the I/O process */ 1335 /* XXX Implement */ 1336 ccb->ccb_h.status = CAM_REQ_INVALID; 1337 xpt_done(ccb); 1338 break; 1339 case XPT_PATH_INQ: /* Path routing inquiry */ 1340 { 1341 struct ccb_pathinq *cpi = &ccb->cpi; 1342 1343 cpi->version_num = 1; /* XXX??? */ 1344 cpi->hba_inquiry = PI_SDTR_ABLE; 1345 if (bt->tag_capable != 0) 1346 cpi->hba_inquiry |= PI_TAG_ABLE; 1347 if (bt->wide_bus != 0) 1348 cpi->hba_inquiry |= PI_WIDE_16; 1349 cpi->target_sprt = 0; 1350 cpi->hba_misc = 0; 1351 cpi->hba_eng_cnt = 0; 1352 cpi->max_target = bt->wide_bus ? 15 : 7; 1353 cpi->max_lun = 7; 1354 cpi->initiator_id = bt->scsi_id; 1355 cpi->bus_id = cam_sim_bus(sim); 1356 cpi->base_transfer_speed = 3300; 1357 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 1358 strncpy(cpi->hba_vid, "BusLogic", HBA_IDLEN); 1359 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 1360 cpi->unit_number = cam_sim_unit(sim); 1361 cpi->ccb_h.status = CAM_REQ_CMP; 1362 xpt_done(ccb); 1363 break; 1364 } 1365 default: 1366 ccb->ccb_h.status = CAM_REQ_INVALID; 1367 xpt_done(ccb); 1368 break; 1369 } 1370 } 1371 1372 static void 1373 btexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1374 { 1375 struct bt_ccb *bccb; 1376 union ccb *ccb; 1377 struct bt_softc *bt; 1378 int s; 1379 1380 bccb = (struct bt_ccb *)arg; 1381 ccb = bccb->ccb; 1382 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 1383 1384 if (error != 0) { 1385 if (error != EFBIG) 1386 device_printf(bt->dev, 1387 "Unexepected error 0x%x returned from " 1388 "bus_dmamap_load\n", error); 1389 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1390 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1391 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1392 } 1393 btfreeccb(bt, bccb); 1394 xpt_done(ccb); 1395 return; 1396 } 1397 1398 if (nseg != 0) { 1399 bt_sg_t *sg; 1400 bus_dma_segment_t *end_seg; 1401 bus_dmasync_op_t op; 1402 1403 end_seg = dm_segs + nseg; 1404 1405 /* Copy the segments into our SG list */ 1406 sg = bccb->sg_list; 1407 while (dm_segs < end_seg) { 1408 sg->len = dm_segs->ds_len; 1409 sg->addr = dm_segs->ds_addr; 1410 sg++; 1411 dm_segs++; 1412 } 1413 1414 if (nseg > 1) { 1415 bccb->hccb.opcode = INITIATOR_SG_CCB_WRESID; 1416 bccb->hccb.data_len = sizeof(bt_sg_t) * nseg; 1417 bccb->hccb.data_addr = bccb->sg_list_phys; 1418 } else { 1419 bccb->hccb.data_len = bccb->sg_list->len; 1420 bccb->hccb.data_addr = bccb->sg_list->addr; 1421 } 1422 1423 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1424 op = BUS_DMASYNC_PREREAD; 1425 else 1426 op = BUS_DMASYNC_PREWRITE; 1427 1428 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1429 1430 } else { 1431 bccb->hccb.opcode = INITIATOR_CCB; 1432 bccb->hccb.data_len = 0; 1433 bccb->hccb.data_addr = 0; 1434 } 1435 1436 s = splcam(); 1437 1438 /* 1439 * Last time we need to check if this CCB needs to 1440 * be aborted. 1441 */ 1442 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1443 if (nseg != 0) 1444 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1445 btfreeccb(bt, bccb); 1446 xpt_done(ccb); 1447 splx(s); 1448 return; 1449 } 1450 1451 bccb->flags = BCCB_ACTIVE; 1452 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1453 LIST_INSERT_HEAD(&bt->pending_ccbs, &ccb->ccb_h, sim_links.le); 1454 1455 ccb->ccb_h.timeout_ch = 1456 timeout(bttimeout, (caddr_t)bccb, 1457 (ccb->ccb_h.timeout * hz) / 1000); 1458 1459 /* Tell the adapter about this command */ 1460 bt->cur_outbox->ccb_addr = btccbvtop(bt, bccb); 1461 if (bt->cur_outbox->action_code != BMBO_FREE) { 1462 /* 1463 * We should never encounter a busy mailbox. 1464 * If we do, warn the user, and treat it as 1465 * a resource shortage. If the controller is 1466 * hung, one of the pending transactions will 1467 * timeout causing us to start recovery operations. 1468 */ 1469 device_printf(bt->dev, 1470 "Encountered busy mailbox with %d out of %d " 1471 "commands active!!!\n", bt->active_ccbs, 1472 bt->max_ccbs); 1473 untimeout(bttimeout, bccb, ccb->ccb_h.timeout_ch); 1474 if (nseg != 0) 1475 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1476 btfreeccb(bt, bccb); 1477 bt->resource_shortage = TRUE; 1478 xpt_freeze_simq(bt->sim, /*count*/1); 1479 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1480 xpt_done(ccb); 1481 return; 1482 } 1483 bt->cur_outbox->action_code = BMBO_START; 1484 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 1485 btnextoutbox(bt); 1486 splx(s); 1487 } 1488 1489 void 1490 bt_intr(void *arg) 1491 { 1492 struct bt_softc *bt; 1493 u_int intstat; 1494 1495 bt = (struct bt_softc *)arg; 1496 while (((intstat = bt_inb(bt, INTSTAT_REG)) & INTR_PENDING) != 0) { 1497 1498 if ((intstat & CMD_COMPLETE) != 0) { 1499 bt->latched_status = bt_inb(bt, STATUS_REG); 1500 bt->command_cmp = TRUE; 1501 } 1502 1503 bt_outb(bt, CONTROL_REG, RESET_INTR); 1504 1505 if ((intstat & IMB_LOADED) != 0) { 1506 while (bt->cur_inbox->comp_code != BMBI_FREE) { 1507 btdone(bt, 1508 btccbptov(bt, bt->cur_inbox->ccb_addr), 1509 bt->cur_inbox->comp_code); 1510 bt->cur_inbox->comp_code = BMBI_FREE; 1511 btnextinbox(bt); 1512 } 1513 } 1514 1515 if ((intstat & SCSI_BUS_RESET) != 0) { 1516 btreset(bt, /*hardreset*/FALSE); 1517 } 1518 } 1519 } 1520 1521 static void 1522 btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code) 1523 { 1524 union ccb *ccb; 1525 struct ccb_scsiio *csio; 1526 1527 ccb = bccb->ccb; 1528 csio = &bccb->ccb->csio; 1529 1530 if ((bccb->flags & BCCB_ACTIVE) == 0) { 1531 device_printf(bt->dev, 1532 "btdone - Attempt to free non-active BCCB %p\n", 1533 (void *)bccb); 1534 return; 1535 } 1536 1537 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1538 bus_dmasync_op_t op; 1539 1540 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1541 op = BUS_DMASYNC_POSTREAD; 1542 else 1543 op = BUS_DMASYNC_POSTWRITE; 1544 bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op); 1545 bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap); 1546 } 1547 1548 if (bccb == bt->recovery_bccb) { 1549 /* 1550 * The recovery BCCB does not have a CCB associated 1551 * with it, so short circuit the normal error handling. 1552 * We now traverse our list of pending CCBs and process 1553 * any that were terminated by the recovery CCBs action. 1554 * We also reinstate timeouts for all remaining, pending, 1555 * CCBs. 1556 */ 1557 struct cam_path *path; 1558 struct ccb_hdr *ccb_h; 1559 cam_status error; 1560 1561 /* Notify all clients that a BDR occured */ 1562 error = xpt_create_path(&path, /*periph*/NULL, 1563 cam_sim_path(bt->sim), 1564 bccb->hccb.target_id, 1565 CAM_LUN_WILDCARD); 1566 1567 if (error == CAM_REQ_CMP) 1568 xpt_async(AC_SENT_BDR, path, NULL); 1569 1570 ccb_h = LIST_FIRST(&bt->pending_ccbs); 1571 while (ccb_h != NULL) { 1572 struct bt_ccb *pending_bccb; 1573 1574 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1575 if (pending_bccb->hccb.target_id 1576 == bccb->hccb.target_id) { 1577 pending_bccb->hccb.btstat = BTSTAT_HA_BDR; 1578 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1579 btdone(bt, pending_bccb, BMBI_ERROR); 1580 } else { 1581 ccb_h->timeout_ch = 1582 timeout(bttimeout, (caddr_t)pending_bccb, 1583 (ccb_h->timeout * hz) / 1000); 1584 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1585 } 1586 } 1587 device_printf(bt->dev, "No longer in timeout\n"); 1588 return; 1589 } 1590 1591 untimeout(bttimeout, bccb, ccb->ccb_h.timeout_ch); 1592 1593 switch (comp_code) { 1594 case BMBI_FREE: 1595 device_printf(bt->dev, 1596 "btdone - CCB completed with free status!\n"); 1597 break; 1598 case BMBI_NOT_FOUND: 1599 device_printf(bt->dev, 1600 "btdone - CCB Abort failed to find CCB\n"); 1601 break; 1602 case BMBI_ABORT: 1603 case BMBI_ERROR: 1604 if (bootverbose) { 1605 printf("bt: ccb %p - error %x occured. " 1606 "btstat = %x, sdstat = %x\n", 1607 (void *)bccb, comp_code, bccb->hccb.btstat, 1608 bccb->hccb.sdstat); 1609 } 1610 /* An error occured */ 1611 switch(bccb->hccb.btstat) { 1612 case BTSTAT_DATARUN_ERROR: 1613 if (bccb->hccb.data_len == 0) { 1614 /* 1615 * At least firmware 4.22, does this 1616 * for a QUEUE FULL condition. 1617 */ 1618 bccb->hccb.sdstat = SCSI_STATUS_QUEUE_FULL; 1619 } else if (bccb->hccb.data_len < 0) { 1620 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1621 break; 1622 } 1623 /* FALLTHROUGH */ 1624 case BTSTAT_NOERROR: 1625 case BTSTAT_LINKED_CMD_COMPLETE: 1626 case BTSTAT_LINKED_CMD_FLAG_COMPLETE: 1627 case BTSTAT_DATAUNDERUN_ERROR: 1628 1629 csio->scsi_status = bccb->hccb.sdstat; 1630 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1631 switch(csio->scsi_status) { 1632 case SCSI_STATUS_CHECK_COND: 1633 case SCSI_STATUS_CMD_TERMINATED: 1634 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1635 /* Bounce sense back if necessary */ 1636 if (bt->sense_buffers != NULL) { 1637 csio->sense_data = 1638 *btsensevaddr(bt, bccb); 1639 } 1640 break; 1641 default: 1642 break; 1643 case SCSI_STATUS_OK: 1644 csio->ccb_h.status = CAM_REQ_CMP; 1645 break; 1646 } 1647 csio->resid = bccb->hccb.data_len; 1648 break; 1649 case BTSTAT_SELTIMEOUT: 1650 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1651 break; 1652 case BTSTAT_UNEXPECTED_BUSFREE: 1653 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1654 break; 1655 case BTSTAT_INVALID_PHASE: 1656 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1657 break; 1658 case BTSTAT_INVALID_ACTION_CODE: 1659 panic("%s: Inavlid Action code", bt_name(bt)); 1660 break; 1661 case BTSTAT_INVALID_OPCODE: 1662 panic("%s: Inavlid CCB Opcode code", bt_name(bt)); 1663 break; 1664 case BTSTAT_LINKED_CCB_LUN_MISMATCH: 1665 /* We don't even support linked commands... */ 1666 panic("%s: Linked CCB Lun Mismatch", bt_name(bt)); 1667 break; 1668 case BTSTAT_INVALID_CCB_OR_SG_PARAM: 1669 panic("%s: Invalid CCB or SG list", bt_name(bt)); 1670 break; 1671 case BTSTAT_AUTOSENSE_FAILED: 1672 csio->ccb_h.status = CAM_AUTOSENSE_FAIL; 1673 break; 1674 case BTSTAT_TAGGED_MSG_REJECTED: 1675 { 1676 struct ccb_trans_settings neg; 1677 1678 xpt_print_path(csio->ccb_h.path); 1679 printf("refuses tagged commands. Performing " 1680 "non-tagged I/O\n"); 1681 neg.flags = 0; 1682 neg.valid = CCB_TRANS_TQ_VALID; 1683 xpt_setup_ccb(&neg.ccb_h, csio->ccb_h.path, 1684 /*priority*/1); 1685 xpt_async(AC_TRANSFER_NEG, csio->ccb_h.path, &neg); 1686 bt->tags_permitted &= ~(0x01 << csio->ccb_h.target_id); 1687 csio->ccb_h.status = CAM_MSG_REJECT_REC; 1688 break; 1689 } 1690 case BTSTAT_UNSUPPORTED_MSG_RECEIVED: 1691 /* 1692 * XXX You would think that this is 1693 * a recoverable error... Hmmm. 1694 */ 1695 csio->ccb_h.status = CAM_REQ_CMP_ERR; 1696 break; 1697 case BTSTAT_HA_SOFTWARE_ERROR: 1698 case BTSTAT_HA_WATCHDOG_ERROR: 1699 case BTSTAT_HARDWARE_FAILURE: 1700 /* Hardware reset ??? Can we recover ??? */ 1701 csio->ccb_h.status = CAM_NO_HBA; 1702 break; 1703 case BTSTAT_TARGET_IGNORED_ATN: 1704 case BTSTAT_OTHER_SCSI_BUS_RESET: 1705 case BTSTAT_HA_SCSI_BUS_RESET: 1706 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1707 != CAM_CMD_TIMEOUT) 1708 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1709 break; 1710 case BTSTAT_HA_BDR: 1711 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) 1712 csio->ccb_h.status = CAM_BDR_SENT; 1713 else 1714 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1715 break; 1716 case BTSTAT_INVALID_RECONNECT: 1717 case BTSTAT_ABORT_QUEUE_GENERATED: 1718 csio->ccb_h.status = CAM_REQ_TERMIO; 1719 break; 1720 case BTSTAT_SCSI_PERROR_DETECTED: 1721 csio->ccb_h.status = CAM_UNCOR_PARITY; 1722 break; 1723 } 1724 if (csio->ccb_h.status != CAM_REQ_CMP) { 1725 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1726 csio->ccb_h.status |= CAM_DEV_QFRZN; 1727 } 1728 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1729 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1730 btfreeccb(bt, bccb); 1731 xpt_done(ccb); 1732 break; 1733 case BMBI_OK: 1734 /* All completed without incident */ 1735 ccb->ccb_h.status |= CAM_REQ_CMP; 1736 if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0) 1737 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1738 btfreeccb(bt, bccb); 1739 xpt_done(ccb); 1740 break; 1741 } 1742 } 1743 1744 static int 1745 btreset(struct bt_softc* bt, int hard_reset) 1746 { 1747 struct ccb_hdr *ccb_h; 1748 u_int status; 1749 u_int timeout; 1750 u_int8_t reset_type; 1751 1752 if (hard_reset != 0) 1753 reset_type = HARD_RESET; 1754 else 1755 reset_type = SOFT_RESET; 1756 bt_outb(bt, CONTROL_REG, reset_type); 1757 1758 /* Wait 5sec. for Diagnostic start */ 1759 timeout = 5 * 10000; 1760 while (--timeout) { 1761 status = bt_inb(bt, STATUS_REG); 1762 if ((status & DIAG_ACTIVE) != 0) 1763 break; 1764 DELAY(100); 1765 } 1766 if (timeout == 0) { 1767 if (bootverbose) 1768 printf("%s: btreset - Diagnostic Active failed to " 1769 "assert. status = 0x%x\n", bt_name(bt), status); 1770 return (ETIMEDOUT); 1771 } 1772 1773 /* Wait 10sec. for Diagnostic end */ 1774 timeout = 10 * 10000; 1775 while (--timeout) { 1776 status = bt_inb(bt, STATUS_REG); 1777 if ((status & DIAG_ACTIVE) == 0) 1778 break; 1779 DELAY(100); 1780 } 1781 if (timeout == 0) { 1782 panic("%s: btreset - Diagnostic Active failed to drop. " 1783 "status = 0x%x\n", bt_name(bt), status); 1784 return (ETIMEDOUT); 1785 } 1786 1787 /* Wait for the host adapter to become ready or report a failure */ 1788 timeout = 10000; 1789 while (--timeout) { 1790 status = bt_inb(bt, STATUS_REG); 1791 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1792 break; 1793 DELAY(100); 1794 } 1795 if (timeout == 0) { 1796 printf("%s: btreset - Host adapter failed to come ready. " 1797 "status = 0x%x\n", bt_name(bt), status); 1798 return (ETIMEDOUT); 1799 } 1800 1801 /* If the diagnostics failed, tell the user */ 1802 if ((status & DIAG_FAIL) != 0 1803 || (status & HA_READY) == 0) { 1804 printf("%s: btreset - Adapter failed diagnostics\n", 1805 bt_name(bt)); 1806 1807 if ((status & DATAIN_REG_READY) != 0) 1808 printf("%s: btreset - Host Adapter Error code = 0x%x\n", 1809 bt_name(bt), bt_inb(bt, DATAIN_REG)); 1810 return (ENXIO); 1811 } 1812 1813 /* If we've allocated mailboxes, initialize them */ 1814 if (bt->init_level > 4) 1815 btinitmboxes(bt); 1816 1817 /* If we've attached to the XPT, tell it about the event */ 1818 if (bt->path != NULL) 1819 xpt_async(AC_BUS_RESET, bt->path, NULL); 1820 1821 /* 1822 * Perform completion processing for all outstanding CCBs. 1823 */ 1824 while ((ccb_h = LIST_FIRST(&bt->pending_ccbs)) != NULL) { 1825 struct bt_ccb *pending_bccb; 1826 1827 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 1828 pending_bccb->hccb.btstat = BTSTAT_HA_SCSI_BUS_RESET; 1829 btdone(bt, pending_bccb, BMBI_ERROR); 1830 } 1831 1832 return (0); 1833 } 1834 1835 /* 1836 * Send a command to the adapter. 1837 */ 1838 int 1839 bt_cmd(struct bt_softc *bt, bt_op_t opcode, u_int8_t *params, u_int param_len, 1840 u_int8_t *reply_data, u_int reply_len, u_int cmd_timeout) 1841 { 1842 u_int timeout; 1843 u_int status; 1844 u_int saved_status; 1845 u_int intstat; 1846 u_int reply_buf_size; 1847 int s; 1848 int cmd_complete; 1849 int error; 1850 1851 /* No data returned to start */ 1852 reply_buf_size = reply_len; 1853 reply_len = 0; 1854 intstat = 0; 1855 cmd_complete = 0; 1856 saved_status = 0; 1857 error = 0; 1858 1859 bt->command_cmp = 0; 1860 /* 1861 * Wait up to 10 sec. for the adapter to become 1862 * ready to accept commands. 1863 */ 1864 timeout = 100000; 1865 while (--timeout) { 1866 status = bt_inb(bt, STATUS_REG); 1867 if ((status & HA_READY) != 0 1868 && (status & CMD_REG_BUSY) == 0) 1869 break; 1870 /* 1871 * Throw away any pending data which may be 1872 * left over from earlier commands that we 1873 * timedout on. 1874 */ 1875 if ((status & DATAIN_REG_READY) != 0) 1876 (void)bt_inb(bt, DATAIN_REG); 1877 DELAY(100); 1878 } 1879 if (timeout == 0) { 1880 printf("%s: bt_cmd: Timeout waiting for adapter ready, " 1881 "status = 0x%x\n", bt_name(bt), status); 1882 return (ETIMEDOUT); 1883 } 1884 1885 /* 1886 * Send the opcode followed by any necessary parameter bytes. 1887 */ 1888 bt_outb(bt, COMMAND_REG, opcode); 1889 1890 /* 1891 * Wait for up to 1sec for each byte of the the 1892 * parameter list sent to be sent. 1893 */ 1894 timeout = 10000; 1895 while (param_len && --timeout) { 1896 DELAY(100); 1897 s = splcam(); 1898 status = bt_inb(bt, STATUS_REG); 1899 intstat = bt_inb(bt, INTSTAT_REG); 1900 splx(s); 1901 1902 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1903 == (INTR_PENDING|CMD_COMPLETE)) { 1904 saved_status = status; 1905 cmd_complete = 1; 1906 break; 1907 } 1908 if (bt->command_cmp != 0) { 1909 saved_status = bt->latched_status; 1910 cmd_complete = 1; 1911 break; 1912 } 1913 if ((status & DATAIN_REG_READY) != 0) 1914 break; 1915 if ((status & CMD_REG_BUSY) == 0) { 1916 bt_outb(bt, COMMAND_REG, *params++); 1917 param_len--; 1918 timeout = 10000; 1919 } 1920 } 1921 if (timeout == 0) { 1922 printf("%s: bt_cmd: Timeout sending parameters, " 1923 "status = 0x%x\n", bt_name(bt), status); 1924 cmd_complete = 1; 1925 saved_status = status; 1926 error = ETIMEDOUT; 1927 } 1928 1929 /* 1930 * Wait for the command to complete. 1931 */ 1932 while (cmd_complete == 0 && --cmd_timeout) { 1933 1934 s = splcam(); 1935 status = bt_inb(bt, STATUS_REG); 1936 intstat = bt_inb(bt, INTSTAT_REG); 1937 /* 1938 * It may be that this command was issued with 1939 * controller interrupts disabled. We'll never 1940 * get to our command if an incoming mailbox 1941 * interrupt is pending, so take care of completed 1942 * mailbox commands by calling our interrupt handler. 1943 */ 1944 if ((intstat & (INTR_PENDING|IMB_LOADED)) 1945 == (INTR_PENDING|IMB_LOADED)) 1946 bt_intr(bt); 1947 splx(s); 1948 1949 if (bt->command_cmp != 0) { 1950 /* 1951 * Our interrupt handler saw CMD_COMPLETE 1952 * status before we did. 1953 */ 1954 cmd_complete = 1; 1955 saved_status = bt->latched_status; 1956 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1957 == (INTR_PENDING|CMD_COMPLETE)) { 1958 /* 1959 * Our poll (in case interrupts are blocked) 1960 * saw the CMD_COMPLETE interrupt. 1961 */ 1962 cmd_complete = 1; 1963 saved_status = status; 1964 } else if (opcode == BOP_MODIFY_IO_ADDR 1965 && (status & CMD_REG_BUSY) == 0) { 1966 /* 1967 * The BOP_MODIFY_IO_ADDR does not issue a CMD_COMPLETE, 1968 * but it should update the status register. So, we 1969 * consider this command complete when the CMD_REG_BUSY 1970 * status clears. 1971 */ 1972 saved_status = status; 1973 cmd_complete = 1; 1974 } else if ((status & DATAIN_REG_READY) != 0) { 1975 u_int8_t data; 1976 1977 data = bt_inb(bt, DATAIN_REG); 1978 if (reply_len < reply_buf_size) { 1979 *reply_data++ = data; 1980 } else { 1981 printf("%s: bt_cmd - Discarded reply data byte " 1982 "for opcode 0x%x\n", bt_name(bt), 1983 opcode); 1984 } 1985 /* 1986 * Reset timeout to ensure at least a second 1987 * between response bytes. 1988 */ 1989 cmd_timeout = MAX(cmd_timeout, 10000); 1990 reply_len++; 1991 1992 } else if ((opcode == BOP_FETCH_LRAM) 1993 && (status & HA_READY) != 0) { 1994 saved_status = status; 1995 cmd_complete = 1; 1996 } 1997 DELAY(100); 1998 } 1999 if (cmd_timeout == 0) { 2000 printf("%s: bt_cmd: Timeout waiting for command (%x) " 2001 "to complete.\n%s: status = 0x%x, intstat = 0x%x, " 2002 "rlen %d\n", bt_name(bt), opcode, 2003 bt_name(bt), status, intstat, reply_len); 2004 error = (ETIMEDOUT); 2005 } 2006 2007 /* 2008 * Clear any pending interrupts. Block interrupts so our 2009 * interrupt handler is not re-entered. 2010 */ 2011 s = splcam(); 2012 bt_intr(bt); 2013 splx(s); 2014 2015 if (error != 0) 2016 return (error); 2017 2018 /* 2019 * If the command was rejected by the controller, tell the caller. 2020 */ 2021 if ((saved_status & CMD_INVALID) != 0) { 2022 /* 2023 * Some early adapters may not recover properly from 2024 * an invalid command. If it appears that the controller 2025 * has wedged (i.e. status was not cleared by our interrupt 2026 * reset above), perform a soft reset. 2027 */ 2028 if (bootverbose) 2029 printf("%s: Invalid Command 0x%x\n", bt_name(bt), 2030 opcode); 2031 DELAY(1000); 2032 status = bt_inb(bt, STATUS_REG); 2033 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 2034 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 2035 || (status & (HA_READY|INIT_REQUIRED)) 2036 != (HA_READY|INIT_REQUIRED)) { 2037 btreset(bt, /*hard_reset*/FALSE); 2038 } 2039 return (EINVAL); 2040 } 2041 2042 if (param_len > 0) { 2043 /* The controller did not accept the full argument list */ 2044 return (E2BIG); 2045 } 2046 2047 if (reply_len != reply_buf_size) { 2048 /* Too much or too little data received */ 2049 return (EMSGSIZE); 2050 } 2051 2052 /* We were successful */ 2053 return (0); 2054 } 2055 2056 static int 2057 btinitmboxes(struct bt_softc *bt) { 2058 init_32b_mbox_params_t init_mbox; 2059 int error; 2060 2061 bzero(bt->in_boxes, sizeof(bt_mbox_in_t) * bt->num_boxes); 2062 bzero(bt->out_boxes, sizeof(bt_mbox_out_t) * bt->num_boxes); 2063 bt->cur_inbox = bt->in_boxes; 2064 bt->last_inbox = bt->in_boxes + bt->num_boxes - 1; 2065 bt->cur_outbox = bt->out_boxes; 2066 bt->last_outbox = bt->out_boxes + bt->num_boxes - 1; 2067 2068 /* Tell the adapter about them */ 2069 init_mbox.num_boxes = bt->num_boxes; 2070 init_mbox.base_addr[0] = bt->mailbox_physbase & 0xFF; 2071 init_mbox.base_addr[1] = (bt->mailbox_physbase >> 8) & 0xFF; 2072 init_mbox.base_addr[2] = (bt->mailbox_physbase >> 16) & 0xFF; 2073 init_mbox.base_addr[3] = (bt->mailbox_physbase >> 24) & 0xFF; 2074 error = bt_cmd(bt, BOP_INITIALIZE_32BMBOX, (u_int8_t *)&init_mbox, 2075 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 2076 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 2077 2078 if (error != 0) 2079 printf("btinitmboxes: Initialization command failed\n"); 2080 else if (bt->strict_rr != 0) { 2081 /* 2082 * If the controller supports 2083 * strict round robin mode, 2084 * enable it 2085 */ 2086 u_int8_t param; 2087 2088 param = 0; 2089 error = bt_cmd(bt, BOP_ENABLE_STRICT_RR, ¶m, 1, 2090 /*reply_buf*/NULL, /*reply_len*/0, 2091 DEFAULT_CMD_TIMEOUT); 2092 2093 if (error != 0) { 2094 printf("btinitmboxes: Unable to enable strict RR\n"); 2095 error = 0; 2096 } else if (bootverbose) { 2097 printf("%s: Using Strict Round Robin Mailbox Mode\n", 2098 bt_name(bt)); 2099 } 2100 } 2101 2102 return (error); 2103 } 2104 2105 /* 2106 * Update the XPT's idea of the negotiated transfer 2107 * parameters for a particular target. 2108 */ 2109 static void 2110 btfetchtransinfo(struct bt_softc *bt, struct ccb_trans_settings* cts) 2111 { 2112 setup_data_t setup_info; 2113 u_int target; 2114 u_int targ_offset; 2115 u_int targ_mask; 2116 u_int sync_period; 2117 int error; 2118 u_int8_t param; 2119 targ_syncinfo_t sync_info; 2120 2121 target = cts->ccb_h.target_id; 2122 targ_offset = (target & 0x7); 2123 targ_mask = (0x01 << targ_offset); 2124 2125 /* 2126 * Inquire Setup Information. This command retreives the 2127 * Wide negotiation status for recent adapters as well as 2128 * the sync info for older models. 2129 */ 2130 param = sizeof(setup_info); 2131 error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 2132 (u_int8_t*)&setup_info, sizeof(setup_info), 2133 DEFAULT_CMD_TIMEOUT); 2134 2135 if (error != 0) { 2136 printf("%s: btfetchtransinfo - Inquire Setup Info Failed %x\n", 2137 bt_name(bt), error); 2138 cts->valid = 0; 2139 return; 2140 } 2141 2142 sync_info = (target < 8) ? setup_info.low_syncinfo[targ_offset] 2143 : setup_info.high_syncinfo[targ_offset]; 2144 2145 if (sync_info.sync == 0) 2146 cts->sync_offset = 0; 2147 else 2148 cts->sync_offset = sync_info.offset; 2149 2150 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 2151 if (strcmp(bt->firmware_ver, "5.06L") >= 0) { 2152 u_int wide_active; 2153 2154 wide_active = 2155 (target < 8) ? (setup_info.low_wide_active & targ_mask) 2156 : (setup_info.high_wide_active & targ_mask); 2157 2158 if (wide_active) 2159 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2160 } else if ((bt->wide_permitted & targ_mask) != 0) { 2161 struct ccb_getdev cgd; 2162 2163 /* 2164 * Prior to rev 5.06L, wide status isn't provided, 2165 * so we "guess" that wide transfers are in effect 2166 * if the user settings allow for wide and the inquiry 2167 * data for the device indicates that it can handle 2168 * wide transfers. 2169 */ 2170 xpt_setup_ccb(&cgd.ccb_h, cts->ccb_h.path, /*priority*/1); 2171 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 2172 xpt_action((union ccb *)&cgd); 2173 if ((cgd.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP 2174 && (cgd.inq_data.flags & SID_WBus16) != 0) 2175 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT; 2176 } 2177 2178 if (bt->firmware_ver[0] >= '3') { 2179 /* 2180 * For adapters that can do fast or ultra speeds, 2181 * use the more exact Target Sync Information command. 2182 */ 2183 target_sync_info_data_t sync_info; 2184 2185 param = sizeof(sync_info); 2186 error = bt_cmd(bt, BOP_TARG_SYNC_INFO, ¶m, /*paramlen*/1, 2187 (u_int8_t*)&sync_info, sizeof(sync_info), 2188 DEFAULT_CMD_TIMEOUT); 2189 2190 if (error != 0) { 2191 printf("%s: btfetchtransinfo - Inquire Sync " 2192 "Info Failed 0x%x\n", bt_name(bt), error); 2193 cts->valid = 0; 2194 return; 2195 } 2196 sync_period = sync_info.sync_rate[target] * 100; 2197 } else { 2198 sync_period = 2000 + (500 * sync_info.period); 2199 } 2200 2201 /* Convert ns value to standard SCSI sync rate */ 2202 if (cts->sync_offset != 0) 2203 cts->sync_period = scsi_calc_syncparam(sync_period); 2204 else 2205 cts->sync_period = 0; 2206 2207 cts->valid = CCB_TRANS_SYNC_RATE_VALID 2208 | CCB_TRANS_SYNC_OFFSET_VALID 2209 | CCB_TRANS_BUS_WIDTH_VALID; 2210 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 2211 } 2212 2213 static void 2214 btmapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2215 { 2216 struct bt_softc* bt; 2217 2218 bt = (struct bt_softc*)arg; 2219 bt->mailbox_physbase = segs->ds_addr; 2220 } 2221 2222 static void 2223 btmapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2224 { 2225 struct bt_softc* bt; 2226 2227 bt = (struct bt_softc*)arg; 2228 bt->bt_ccb_physbase = segs->ds_addr; 2229 } 2230 2231 static void 2232 btmapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 2233 { 2234 2235 struct bt_softc* bt; 2236 2237 bt = (struct bt_softc*)arg; 2238 SLIST_FIRST(&bt->sg_maps)->sg_physaddr = segs->ds_addr; 2239 } 2240 2241 static void 2242 btpoll(struct cam_sim *sim) 2243 { 2244 bt_intr(cam_sim_softc(sim)); 2245 } 2246 2247 void 2248 bttimeout(void *arg) 2249 { 2250 struct bt_ccb *bccb; 2251 union ccb *ccb; 2252 struct bt_softc *bt; 2253 int s; 2254 2255 bccb = (struct bt_ccb *)arg; 2256 ccb = bccb->ccb; 2257 bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr; 2258 xpt_print_path(ccb->ccb_h.path); 2259 printf("CCB %p - timed out\n", (void *)bccb); 2260 2261 s = splcam(); 2262 2263 if ((bccb->flags & BCCB_ACTIVE) == 0) { 2264 xpt_print_path(ccb->ccb_h.path); 2265 printf("CCB %p - timed out CCB already completed\n", 2266 (void *)bccb); 2267 splx(s); 2268 return; 2269 } 2270 2271 /* 2272 * In order to simplify the recovery process, we ask the XPT 2273 * layer to halt the queue of new transactions and we traverse 2274 * the list of pending CCBs and remove their timeouts. This 2275 * means that the driver attempts to clear only one error 2276 * condition at a time. In general, timeouts that occur 2277 * close together are related anyway, so there is no benefit 2278 * in attempting to handle errors in parrallel. Timeouts will 2279 * be reinstated when the recovery process ends. 2280 */ 2281 if ((bccb->flags & BCCB_DEVICE_RESET) == 0) { 2282 struct ccb_hdr *ccb_h; 2283 2284 if ((bccb->flags & BCCB_RELEASE_SIMQ) == 0) { 2285 xpt_freeze_simq(bt->sim, /*count*/1); 2286 bccb->flags |= BCCB_RELEASE_SIMQ; 2287 } 2288 2289 ccb_h = LIST_FIRST(&bt->pending_ccbs); 2290 while (ccb_h != NULL) { 2291 struct bt_ccb *pending_bccb; 2292 2293 pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr; 2294 untimeout(bttimeout, pending_bccb, ccb_h->timeout_ch); 2295 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 2296 } 2297 } 2298 2299 if ((bccb->flags & BCCB_DEVICE_RESET) != 0 2300 || bt->cur_outbox->action_code != BMBO_FREE 2301 || ((bccb->hccb.tag_enable == TRUE) 2302 && (bt->firmware_ver[0] < '5'))) { 2303 /* 2304 * Try a full host adapter/SCSI bus reset. 2305 * We do this only if we have already attempted 2306 * to clear the condition with a BDR, or we cannot 2307 * attempt a BDR for lack of mailbox resources 2308 * or because of faulty firmware. It turns out 2309 * that firmware versions prior to 5.xx treat BDRs 2310 * as untagged commands that cannot be sent until 2311 * all outstanding tagged commands have been processed. 2312 * This makes it somewhat difficult to use a BDR to 2313 * clear up a problem with an uncompleted tagged command. 2314 */ 2315 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 2316 btreset(bt, /*hardreset*/TRUE); 2317 printf("%s: No longer in timeout\n", bt_name(bt)); 2318 } else { 2319 /* 2320 * Send a Bus Device Reset message: 2321 * The target that is holding up the bus may not 2322 * be the same as the one that triggered this timeout 2323 * (different commands have different timeout lengths), 2324 * but we have no way of determining this from our 2325 * timeout handler. Our strategy here is to queue a 2326 * BDR message to the target of the timed out command. 2327 * If this fails, we'll get another timeout 2 seconds 2328 * later which will attempt a bus reset. 2329 */ 2330 bccb->flags |= BCCB_DEVICE_RESET; 2331 ccb->ccb_h.timeout_ch = 2332 timeout(bttimeout, (caddr_t)bccb, 2 * hz); 2333 2334 bt->recovery_bccb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 2335 2336 /* No Data Transfer */ 2337 bt->recovery_bccb->hccb.datain = TRUE; 2338 bt->recovery_bccb->hccb.dataout = TRUE; 2339 bt->recovery_bccb->hccb.btstat = 0; 2340 bt->recovery_bccb->hccb.sdstat = 0; 2341 bt->recovery_bccb->hccb.target_id = ccb->ccb_h.target_id; 2342 2343 /* Tell the adapter about this command */ 2344 bt->cur_outbox->ccb_addr = btccbvtop(bt, bt->recovery_bccb); 2345 bt->cur_outbox->action_code = BMBO_START; 2346 bt_outb(bt, COMMAND_REG, BOP_START_MBOX); 2347 btnextoutbox(bt); 2348 } 2349 2350 splx(s); 2351 } 2352 2353