aac.c revision 111815
1/*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001 Adaptec, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: head/sys/dev/aac/aac.c 111815 2003-03-03 12:15:54Z phk $ 30 */ 31 32/* 33 * Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters. 34 */ 35 36#include "opt_aac.h" 37 38/* #include <stddef.h> */ 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/malloc.h> 42#include <sys/kernel.h> 43#include <sys/kthread.h> 44#include <sys/sysctl.h> 45#include <sys/poll.h> 46 47#include <sys/bus.h> 48#include <sys/conf.h> 49#include <sys/devicestat.h> 50#include <sys/disk.h> 51#include <sys/signalvar.h> 52#include <sys/time.h> 53#include <sys/eventhandler.h> 54 55#include <machine/bus_memio.h> 56#include <machine/bus.h> 57#include <machine/resource.h> 58 59#include <dev/aac/aacreg.h> 60#include <dev/aac/aac_ioctl.h> 61#include <dev/aac/aacvar.h> 62#include <dev/aac/aac_tables.h> 63 64static void aac_startup(void *arg); 65static void aac_add_container(struct aac_softc *sc, 66 struct aac_mntinforesp *mir, int f); 67static void aac_get_bus_info(struct aac_softc *sc); 68 69/* Command Processing */ 70static void aac_timeout(struct aac_softc *sc); 71static int aac_start(struct aac_command *cm); 72static void aac_complete(void *context, int pending); 73static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 74static void aac_bio_complete(struct aac_command *cm); 75static int aac_wait_command(struct aac_command *cm, int timeout); 76static void aac_command_thread(struct aac_softc *sc); 77 78/* Command Buffer Management */ 79static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 80 int nseg, int error); 81static int aac_alloc_commands(struct aac_softc *sc); 82static void aac_free_commands(struct aac_softc *sc); 83static void aac_map_command(struct aac_command *cm); 84static void aac_unmap_command(struct aac_command *cm); 85 86/* Hardware Interface */ 87static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 88 int error); 89static int aac_check_firmware(struct aac_softc *sc); 90static int aac_init(struct aac_softc *sc); 91static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 92 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 93 u_int32_t arg3, u_int32_t *sp); 94static int aac_enqueue_fib(struct aac_softc *sc, int queue, 95 struct aac_command *cm); 96static int aac_dequeue_fib(struct aac_softc *sc, int queue, 97 u_int32_t *fib_size, struct aac_fib **fib_addr); 98static int aac_enqueue_response(struct aac_softc *sc, int queue, 99 struct aac_fib *fib); 100 101/* Falcon/PPC interface */ 102static int aac_fa_get_fwstatus(struct aac_softc *sc); 103static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 104static int aac_fa_get_istatus(struct aac_softc *sc); 105static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 106static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 107 u_int32_t arg0, u_int32_t arg1, 108 u_int32_t arg2, u_int32_t arg3); 109static int aac_fa_get_mailboxstatus(struct aac_softc *sc); 110static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 111 112struct aac_interface aac_fa_interface = { 113 aac_fa_get_fwstatus, 114 aac_fa_qnotify, 115 aac_fa_get_istatus, 116 aac_fa_clear_istatus, 117 aac_fa_set_mailbox, 118 aac_fa_get_mailboxstatus, 119 aac_fa_set_interrupts 120}; 121 122/* StrongARM interface */ 123static int aac_sa_get_fwstatus(struct aac_softc *sc); 124static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 125static int aac_sa_get_istatus(struct aac_softc *sc); 126static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 127static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 128 u_int32_t arg0, u_int32_t arg1, 129 u_int32_t arg2, u_int32_t arg3); 130static int aac_sa_get_mailboxstatus(struct aac_softc *sc); 131static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 132 133struct aac_interface aac_sa_interface = { 134 aac_sa_get_fwstatus, 135 aac_sa_qnotify, 136 aac_sa_get_istatus, 137 aac_sa_clear_istatus, 138 aac_sa_set_mailbox, 139 aac_sa_get_mailboxstatus, 140 aac_sa_set_interrupts 141}; 142 143/* i960Rx interface */ 144static int aac_rx_get_fwstatus(struct aac_softc *sc); 145static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 146static int aac_rx_get_istatus(struct aac_softc *sc); 147static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 148static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 149 u_int32_t arg0, u_int32_t arg1, 150 u_int32_t arg2, u_int32_t arg3); 151static int aac_rx_get_mailboxstatus(struct aac_softc *sc); 152static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 153 154struct aac_interface aac_rx_interface = { 155 aac_rx_get_fwstatus, 156 aac_rx_qnotify, 157 aac_rx_get_istatus, 158 aac_rx_clear_istatus, 159 aac_rx_set_mailbox, 160 aac_rx_get_mailboxstatus, 161 aac_rx_set_interrupts 162}; 163 164/* Debugging and Diagnostics */ 165static void aac_describe_controller(struct aac_softc *sc); 166static char *aac_describe_code(struct aac_code_lookup *table, 167 u_int32_t code); 168 169/* Management Interface */ 170static d_open_t aac_open; 171static d_close_t aac_close; 172static d_ioctl_t aac_ioctl; 173static d_poll_t aac_poll; 174static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 175static void aac_handle_aif(struct aac_softc *sc, 176 struct aac_fib *fib); 177static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 178static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 179static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 180static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 181 182#define AAC_CDEV_MAJOR 150 183 184static struct cdevsw aac_cdevsw = { 185 .d_open = aac_open, 186 .d_close = aac_close, 187 .d_ioctl = aac_ioctl, 188 .d_poll = aac_poll, 189 .d_name = "aac", 190 .d_maj = AAC_CDEV_MAJOR, 191}; 192 193MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 194 195/* sysctl node */ 196SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 197 198/* 199 * Device Interface 200 */ 201 202/* 203 * Initialise the controller and softc 204 */ 205int 206aac_attach(struct aac_softc *sc) 207{ 208 int error, unit; 209 210 debug_called(1); 211 212 /* 213 * Initialise per-controller queues. 214 */ 215 aac_initq_free(sc); 216 aac_initq_ready(sc); 217 aac_initq_busy(sc); 218 aac_initq_bio(sc); 219 220 /* 221 * Initialise command-completion task. 222 */ 223 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 224 225 /* disable interrupts before we enable anything */ 226 AAC_MASK_INTERRUPTS(sc); 227 228 /* mark controller as suspended until we get ourselves organised */ 229 sc->aac_state |= AAC_STATE_SUSPEND; 230 231 /* 232 * Check that the firmware on the card is supported. 233 */ 234 if ((error = aac_check_firmware(sc)) != 0) 235 return(error); 236 237 /* Init the sync fib lock */ 238 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 239 240 /* 241 * Initialise the adapter. 242 */ 243 if ((error = aac_init(sc)) != 0) 244 return(error); 245 246 /* 247 * Print a little information about the controller. 248 */ 249 aac_describe_controller(sc); 250 251 /* 252 * Initialize locks 253 */ 254 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 255 TAILQ_INIT(&sc->aac_container_tqh); 256 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 257 AAC_LOCK_INIT(&sc->aac_io_lock, "AAC I/O lock"); 258 259 /* 260 * Register to probe our containers later. 261 */ 262 sc->aac_ich.ich_func = aac_startup; 263 sc->aac_ich.ich_arg = sc; 264 if (config_intrhook_establish(&sc->aac_ich) != 0) { 265 device_printf(sc->aac_dev, 266 "can't establish configuration hook\n"); 267 return(ENXIO); 268 } 269 270 /* 271 * Make the control device. 272 */ 273 unit = device_get_unit(sc->aac_dev); 274 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 275 0640, "aac%d", unit); 276 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 277 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 278 sc->aac_dev_t->si_drv1 = sc; 279 280 /* Create the AIF thread */ 281 if (kthread_create((void(*)(void *))aac_command_thread, sc, 282 &sc->aifthread, 0, 0, "aac%daif", unit)) 283 panic("Could not create AIF thread\n"); 284 285 /* Register the shutdown method to only be called post-dump */ 286 if ((sc->eh = EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, 287 sc->aac_dev, SHUTDOWN_PRI_DEFAULT)) == NULL) 288 device_printf(sc->aac_dev, 289 "shutdown event registration failed\n"); 290 291 /* Register with CAM for the non-DASD devices */ 292 if (!(sc->quirks & AAC_QUIRK_NOCAM)) { 293 TAILQ_INIT(&sc->aac_sim_tqh); 294 aac_get_bus_info(sc); 295 } 296 297 return(0); 298} 299 300/* 301 * Probe for containers, create disks. 302 */ 303static void 304aac_startup(void *arg) 305{ 306 struct aac_softc *sc; 307 struct aac_fib *fib; 308 struct aac_mntinfo *mi; 309 struct aac_mntinforesp *mir = NULL; 310 int i = 0; 311 312 debug_called(1); 313 314 sc = (struct aac_softc *)arg; 315 316 /* disconnect ourselves from the intrhook chain */ 317 config_intrhook_disestablish(&sc->aac_ich); 318 319 aac_alloc_sync_fib(sc, &fib, 0); 320 mi = (struct aac_mntinfo *)&fib->data[0]; 321 322 /* loop over possible containers */ 323 do { 324 /* request information on this container */ 325 bzero(mi, sizeof(struct aac_mntinfo)); 326 mi->Command = VM_NameServe; 327 mi->MntType = FT_FILESYS; 328 mi->MntCount = i; 329 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 330 sizeof(struct aac_mntinfo))) { 331 debug(2, "error probing container %d", i); 332 continue; 333 } 334 335 mir = (struct aac_mntinforesp *)&fib->data[0]; 336 aac_add_container(sc, mir, 0); 337 i++; 338 } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS)); 339 340 aac_release_sync_fib(sc); 341 342 /* poke the bus to actually attach the child devices */ 343 if (bus_generic_attach(sc->aac_dev)) 344 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 345 346 /* mark the controller up */ 347 sc->aac_state &= ~AAC_STATE_SUSPEND; 348 349 /* enable interrupts now */ 350 AAC_UNMASK_INTERRUPTS(sc); 351} 352 353/* 354 * Create a device to respresent a new container 355 */ 356static void 357aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 358{ 359 struct aac_container *co; 360 device_t child; 361 362 /* 363 * Check container volume type for validity. Note that many of 364 * the possible types may never show up. 365 */ 366 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 367 co = (struct aac_container *)malloc(sizeof *co, M_AACBUF, 368 M_NOWAIT | M_ZERO); 369 if (co == NULL) 370 panic("Out of memory?!\n"); 371 debug(1, "id %x name '%.16s' size %u type %d", 372 mir->MntTable[0].ObjectId, 373 mir->MntTable[0].FileSystemName, 374 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 375 376 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 377 device_printf(sc->aac_dev, "device_add_child failed\n"); 378 else 379 device_set_ivars(child, co); 380 device_set_desc(child, aac_describe_code(aac_container_types, 381 mir->MntTable[0].VolType)); 382 co->co_disk = child; 383 co->co_found = f; 384 bcopy(&mir->MntTable[0], &co->co_mntobj, 385 sizeof(struct aac_mntobj)); 386 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 387 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 388 AAC_LOCK_RELEASE(&sc->aac_container_lock); 389 } 390} 391 392/* 393 * Free all of the resources associated with (sc) 394 * 395 * Should not be called if the controller is active. 396 */ 397void 398aac_free(struct aac_softc *sc) 399{ 400 401 debug_called(1); 402 403 /* remove the control device */ 404 if (sc->aac_dev_t != NULL) 405 destroy_dev(sc->aac_dev_t); 406 407 /* throw away any FIB buffers, discard the FIB DMA tag */ 408 aac_free_commands(sc); 409 if (sc->aac_fib_dmat) 410 bus_dma_tag_destroy(sc->aac_fib_dmat); 411 412 free(sc->aac_commands, M_AACBUF); 413 414 /* destroy the common area */ 415 if (sc->aac_common) { 416 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 417 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 418 sc->aac_common_dmamap); 419 } 420 if (sc->aac_common_dmat) 421 bus_dma_tag_destroy(sc->aac_common_dmat); 422 423 /* disconnect the interrupt handler */ 424 if (sc->aac_intr) 425 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 426 if (sc->aac_irq != NULL) 427 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 428 sc->aac_irq); 429 430 /* destroy data-transfer DMA tag */ 431 if (sc->aac_buffer_dmat) 432 bus_dma_tag_destroy(sc->aac_buffer_dmat); 433 434 /* destroy the parent DMA tag */ 435 if (sc->aac_parent_dmat) 436 bus_dma_tag_destroy(sc->aac_parent_dmat); 437 438 /* release the register window mapping */ 439 if (sc->aac_regs_resource != NULL) 440 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 441 sc->aac_regs_rid, sc->aac_regs_resource); 442} 443 444/* 445 * Disconnect from the controller completely, in preparation for unload. 446 */ 447int 448aac_detach(device_t dev) 449{ 450 struct aac_softc *sc; 451 struct aac_container *co; 452 struct aac_sim *sim; 453 int error; 454 455 debug_called(1); 456 457 sc = device_get_softc(dev); 458 459 if (sc->aac_state & AAC_STATE_OPEN) 460 return(EBUSY); 461 462 /* Remove the child containers */ 463 while ((co = TAILQ_FIRST(&sc->aac_container_tqh)) != NULL) { 464 error = device_delete_child(dev, co->co_disk); 465 if (error) 466 return (error); 467 TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link); 468 free(co, M_AACBUF); 469 } 470 471 /* Remove the CAM SIMs */ 472 while ((sim = TAILQ_FIRST(&sc->aac_sim_tqh)) != NULL) { 473 TAILQ_REMOVE(&sc->aac_sim_tqh, sim, sim_link); 474 error = device_delete_child(dev, sim->sim_dev); 475 if (error) 476 return (error); 477 free(sim, M_AACBUF); 478 } 479 480 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 481 sc->aifflags |= AAC_AIFFLAGS_EXIT; 482 wakeup(sc->aifthread); 483 tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 484 } 485 486 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 487 panic("Cannot shutdown AIF thread\n"); 488 489 if ((error = aac_shutdown(dev))) 490 return(error); 491 492 EVENTHANDLER_DEREGISTER(shutdown_final, sc->eh); 493 494 aac_free(sc); 495 496 return(0); 497} 498 499/* 500 * Bring the controller down to a dormant state and detach all child devices. 501 * 502 * This function is called before detach or system shutdown. 503 * 504 * Note that we can assume that the bioq on the controller is empty, as we won't 505 * allow shutdown if any device is open. 506 */ 507int 508aac_shutdown(device_t dev) 509{ 510 struct aac_softc *sc; 511 struct aac_fib *fib; 512 struct aac_close_command *cc; 513 514 debug_called(1); 515 516 sc = device_get_softc(dev); 517 518 sc->aac_state |= AAC_STATE_SUSPEND; 519 520 /* 521 * Send a Container shutdown followed by a HostShutdown FIB to the 522 * controller to convince it that we don't want to talk to it anymore. 523 * We've been closed and all I/O completed already 524 */ 525 device_printf(sc->aac_dev, "shutting down controller..."); 526 527 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 528 cc = (struct aac_close_command *)&fib->data[0]; 529 530 bzero(cc, sizeof(struct aac_close_command)); 531 cc->Command = VM_CloseAll; 532 cc->ContainerId = 0xffffffff; 533 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 534 sizeof(struct aac_close_command))) 535 printf("FAILED.\n"); 536 else 537 printf("done\n"); 538#if 0 539 else { 540 fib->data[0] = 0; 541 /* 542 * XXX Issuing this command to the controller makes it shut down 543 * but also keeps it from coming back up without a reset of the 544 * PCI bus. This is not desirable if you are just unloading the 545 * driver module with the intent to reload it later. 546 */ 547 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 548 fib, 1)) { 549 printf("FAILED.\n"); 550 } else { 551 printf("done.\n"); 552 } 553 } 554#endif 555 556 AAC_MASK_INTERRUPTS(sc); 557 558 return(0); 559} 560 561/* 562 * Bring the controller to a quiescent state, ready for system suspend. 563 */ 564int 565aac_suspend(device_t dev) 566{ 567 struct aac_softc *sc; 568 569 debug_called(1); 570 571 sc = device_get_softc(dev); 572 573 sc->aac_state |= AAC_STATE_SUSPEND; 574 575 AAC_MASK_INTERRUPTS(sc); 576 return(0); 577} 578 579/* 580 * Bring the controller back to a state ready for operation. 581 */ 582int 583aac_resume(device_t dev) 584{ 585 struct aac_softc *sc; 586 587 debug_called(1); 588 589 sc = device_get_softc(dev); 590 591 sc->aac_state &= ~AAC_STATE_SUSPEND; 592 AAC_UNMASK_INTERRUPTS(sc); 593 return(0); 594} 595 596/* 597 * Take an interrupt. 598 */ 599void 600aac_intr(void *arg) 601{ 602 struct aac_softc *sc; 603 u_int32_t *resp_queue; 604 u_int16_t reason; 605 606 debug_called(2); 607 608 sc = (struct aac_softc *)arg; 609 610 /* 611 * Optimize the common case of adapter response interrupts. 612 * We must read from the card prior to processing the responses 613 * to ensure the clear is flushed prior to accessing the queues. 614 * Reading the queues from local memory might save us a PCI read. 615 */ 616 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 617 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 618 reason = AAC_DB_RESPONSE_READY; 619 else 620 reason = AAC_GET_ISTATUS(sc); 621 AAC_CLEAR_ISTATUS(sc, reason); 622 (void)AAC_GET_ISTATUS(sc); 623 624 /* It's not ok to return here because of races with the previous step */ 625 if (reason & AAC_DB_RESPONSE_READY) 626 /* handle completion processing */ 627 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 628 629 /* controller wants to talk to the log */ 630 if (reason & AAC_DB_PRINTF) { 631 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 632 sc->aifflags |= AAC_AIFFLAGS_PRINTF; 633 } else 634 aac_print_printf(sc); 635 } 636 637 /* controller has a message for us? */ 638 if (reason & AAC_DB_COMMAND_READY) { 639 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 640 sc->aifflags |= AAC_AIFFLAGS_AIF; 641 } else { 642 /* 643 * XXX If the kthread is dead and we're at this point, 644 * there are bigger problems than just figuring out 645 * what to do with an AIF. 646 */ 647 } 648 649 } 650 651 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) != 0) 652 /* XXX Should this be done with cv_signal? */ 653 wakeup(sc->aifthread); 654} 655 656/* 657 * Command Processing 658 */ 659 660/* 661 * Start as much queued I/O as possible on the controller 662 */ 663void 664aac_startio(struct aac_softc *sc) 665{ 666 struct aac_command *cm; 667 668 debug_called(2); 669 670 for (;;) { 671 /* 672 * Try to get a command that's been put off for lack of 673 * resources 674 */ 675 cm = aac_dequeue_ready(sc); 676 677 /* 678 * Try to build a command off the bio queue (ignore error 679 * return) 680 */ 681 if (cm == NULL) 682 aac_bio_command(sc, &cm); 683 684 /* nothing to do? */ 685 if (cm == NULL) 686 break; 687 688 /* try to give the command to the controller */ 689 if (aac_start(cm) == EBUSY) { 690 /* put it on the ready queue for later */ 691 aac_requeue_ready(cm); 692 break; 693 } 694 } 695} 696 697/* 698 * Deliver a command to the controller; allocate controller resources at the 699 * last moment when possible. 700 */ 701static int 702aac_start(struct aac_command *cm) 703{ 704 struct aac_softc *sc; 705 int error; 706 707 debug_called(2); 708 709 sc = cm->cm_sc; 710 711 /* get the command mapped */ 712 aac_map_command(cm); 713 714 /* fix up the address values in the FIB */ 715 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 716 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 717 718 /* save a pointer to the command for speedy reverse-lookup */ 719 cm->cm_fib->Header.SenderData = cm->cm_index; 720 /* put the FIB on the outbound queue */ 721 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 722 return(error); 723} 724 725/* 726 * Handle notification of one or more FIBs coming from the controller. 727 */ 728static void 729aac_command_thread(struct aac_softc *sc) 730{ 731 struct aac_fib *fib; 732 u_int32_t fib_size; 733 int size; 734 735 debug_called(2); 736 737 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 738 739 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 740 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 741 tsleep(sc->aifthread, PRIBIO, "aifthd", 742 AAC_PERIODIC_INTERVAL * hz); 743 744 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 745 aac_timeout(sc); 746 747 /* Check the hardware printf message buffer */ 748 if ((sc->aifflags & AAC_AIFFLAGS_PRINTF) != 0) { 749 sc->aifflags &= ~AAC_AIFFLAGS_PRINTF; 750 aac_print_printf(sc); 751 } 752 753 /* See if any FIBs need to be allocated */ 754 if ((sc->aifflags & AAC_AIFFLAGS_ALLOCFIBS) != 0) { 755 mtx_lock(&Giant); 756 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 757 aac_alloc_commands(sc); 758 sc->aifflags &= ~AAC_AIFFLAGS_ALLOCFIBS; 759 AAC_LOCK_RELEASE(&sc->aac_io_lock); 760 mtx_unlock(&Giant); 761 } 762 763 /* While we're here, check to see if any commands are stuck */ 764 while (sc->aifflags & AAC_AIFFLAGS_AIF) { 765 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 766 &fib_size, &fib)) { 767 sc->aifflags &= ~AAC_AIFFLAGS_AIF; 768 break; /* nothing to do */ 769 } 770 771 AAC_PRINT_FIB(sc, fib); 772 773 switch (fib->Header.Command) { 774 case AifRequest: 775 aac_handle_aif(sc, fib); 776 break; 777 default: 778 device_printf(sc->aac_dev, "unknown command " 779 "from controller\n"); 780 break; 781 } 782 783 if ((fib->Header.XferState == 0) || 784 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 785 break; 786 787 /* Return the AIF to the controller. */ 788 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 789 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 790 *(AAC_FSAStatus*)fib->data = ST_OK; 791 792 /* XXX Compute the Size field? */ 793 size = fib->Header.Size; 794 if (size > sizeof(struct aac_fib)) { 795 size = sizeof(struct aac_fib); 796 fib->Header.Size = size; 797 } 798 /* 799 * Since we did not generate this command, it 800 * cannot go through the normal 801 * enqueue->startio chain. 802 */ 803 aac_enqueue_response(sc, 804 AAC_ADAP_NORM_RESP_QUEUE, 805 fib); 806 } 807 } 808 } 809 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 810 wakeup(sc->aac_dev); 811 812 mtx_lock(&Giant); 813 kthread_exit(0); 814} 815 816/* 817 * Process completed commands. 818 */ 819static void 820aac_complete(void *context, int pending) 821{ 822 struct aac_softc *sc; 823 struct aac_command *cm; 824 struct aac_fib *fib; 825 u_int32_t fib_size; 826 827 debug_called(2); 828 829 sc = (struct aac_softc *)context; 830 831 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 832 833 /* pull completed commands off the queue */ 834 for (;;) { 835 /* look for completed FIBs on our queue */ 836 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 837 &fib)) 838 break; /* nothing to do */ 839 840 /* get the command, unmap and queue for later processing */ 841 cm = sc->aac_commands + fib->Header.SenderData; 842 if (cm == NULL) { 843 AAC_PRINT_FIB(sc, fib); 844 break; 845 } 846 847 aac_remove_busy(cm); 848 aac_unmap_command(cm); /* XXX defer? */ 849 cm->cm_flags |= AAC_CMD_COMPLETED; 850 851 /* is there a completion handler? */ 852 if (cm->cm_complete != NULL) { 853 cm->cm_complete(cm); 854 } else { 855 /* assume that someone is sleeping on this command */ 856 wakeup(cm); 857 } 858 } 859 860 /* see if we can start some more I/O */ 861 aac_startio(sc); 862 863 AAC_LOCK_RELEASE(&sc->aac_io_lock); 864} 865 866/* 867 * Handle a bio submitted from a disk device. 868 */ 869void 870aac_submit_bio(struct bio *bp) 871{ 872 struct aac_disk *ad; 873 struct aac_softc *sc; 874 875 debug_called(2); 876 877 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 878 sc = ad->ad_controller; 879 880 /* queue the BIO and try to get some work done */ 881 aac_enqueue_bio(sc, bp); 882 aac_startio(sc); 883} 884 885/* 886 * Get a bio and build a command to go with it. 887 */ 888static int 889aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 890{ 891 struct aac_command *cm; 892 struct aac_fib *fib; 893 struct aac_blockread *br; 894 struct aac_blockwrite *bw; 895 struct aac_disk *ad; 896 struct bio *bp; 897 898 debug_called(2); 899 900 /* get the resources we will need */ 901 cm = NULL; 902 if ((bp = aac_dequeue_bio(sc)) == NULL) 903 goto fail; 904 if (aac_alloc_command(sc, &cm)) /* get a command */ 905 goto fail; 906 907 /* fill out the command */ 908 cm->cm_data = (void *)bp->bio_data; 909 cm->cm_datalen = bp->bio_bcount; 910 cm->cm_complete = aac_bio_complete; 911 cm->cm_private = bp; 912 cm->cm_timestamp = time_second; 913 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 914 915 /* build the FIB */ 916 fib = cm->cm_fib; 917 fib->Header.XferState = 918 AAC_FIBSTATE_HOSTOWNED | 919 AAC_FIBSTATE_INITIALISED | 920 AAC_FIBSTATE_EMPTY | 921 AAC_FIBSTATE_FROMHOST | 922 AAC_FIBSTATE_REXPECTED | 923 AAC_FIBSTATE_NORM | 924 AAC_FIBSTATE_ASYNC | 925 AAC_FIBSTATE_FAST_RESPONSE; 926 fib->Header.Command = ContainerCommand; 927 fib->Header.Size = sizeof(struct aac_fib_header); 928 929 /* build the read/write request */ 930 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 931 if (bp->bio_cmd == BIO_READ) { 932 br = (struct aac_blockread *)&fib->data[0]; 933 br->Command = VM_CtBlockRead; 934 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 935 br->BlockNumber = bp->bio_pblkno; 936 br->ByteCount = bp->bio_bcount; 937 fib->Header.Size += sizeof(struct aac_blockread); 938 cm->cm_sgtable = &br->SgMap; 939 cm->cm_flags |= AAC_CMD_DATAIN; 940 } else { 941 bw = (struct aac_blockwrite *)&fib->data[0]; 942 bw->Command = VM_CtBlockWrite; 943 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 944 bw->BlockNumber = bp->bio_pblkno; 945 bw->ByteCount = bp->bio_bcount; 946 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 947 fib->Header.Size += sizeof(struct aac_blockwrite); 948 cm->cm_flags |= AAC_CMD_DATAOUT; 949 cm->cm_sgtable = &bw->SgMap; 950 } 951 952 *cmp = cm; 953 return(0); 954 955fail: 956 if (bp != NULL) 957 aac_enqueue_bio(sc, bp); 958 if (cm != NULL) 959 aac_release_command(cm); 960 return(ENOMEM); 961} 962 963/* 964 * Handle a bio-instigated command that has been completed. 965 */ 966static void 967aac_bio_complete(struct aac_command *cm) 968{ 969 struct aac_blockread_response *brr; 970 struct aac_blockwrite_response *bwr; 971 struct bio *bp; 972 AAC_FSAStatus status; 973 974 /* fetch relevant status and then release the command */ 975 bp = (struct bio *)cm->cm_private; 976 if (bp->bio_cmd == BIO_READ) { 977 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 978 status = brr->Status; 979 } else { 980 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 981 status = bwr->Status; 982 } 983 aac_release_command(cm); 984 985 /* fix up the bio based on status */ 986 if (status == ST_OK) { 987 bp->bio_resid = 0; 988 } else { 989 bp->bio_error = EIO; 990 bp->bio_flags |= BIO_ERROR; 991 /* pass an error string out to the disk layer */ 992 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 993 status); 994 } 995 aac_biodone(bp); 996} 997 998/* 999 * Submit a command to the controller, return when it completes. 1000 * XXX This is very dangerous! If the card has gone out to lunch, we could 1001 * be stuck here forever. At the same time, signals are not caught 1002 * because there is a risk that a signal could wakeup the tsleep before 1003 * the card has a chance to complete the command. The passed in timeout 1004 * is ignored for the same reason. Since there is no way to cancel a 1005 * command in progress, we should probably create a 'dead' queue where 1006 * commands go that have been interrupted/timed-out/etc, that keeps them 1007 * out of the free pool. That way, if the card is just slow, it won't 1008 * spam the memory of a command that has been recycled. 1009 */ 1010static int 1011aac_wait_command(struct aac_command *cm, int timeout) 1012{ 1013 struct aac_softc *sc; 1014 int error = 0; 1015 1016 debug_called(2); 1017 1018 sc = cm->cm_sc; 1019 1020 /* Put the command on the ready queue and get things going */ 1021 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1022 aac_enqueue_ready(cm); 1023 aac_startio(sc); 1024 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1025 error = msleep(cm, &sc->aac_io_lock, PRIBIO, "aacwait", 0); 1026 } 1027 return(error); 1028} 1029 1030/* 1031 *Command Buffer Management 1032 */ 1033 1034/* 1035 * Allocate a command. 1036 */ 1037int 1038aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1039{ 1040 struct aac_command *cm; 1041 1042 debug_called(3); 1043 1044 if ((cm = aac_dequeue_free(sc)) == NULL) { 1045 sc->aifflags |= AAC_AIFFLAGS_ALLOCFIBS; 1046 wakeup(sc->aifthread); 1047 return (EBUSY); 1048 } 1049 1050 *cmp = cm; 1051 return(0); 1052} 1053 1054/* 1055 * Release a command back to the freelist. 1056 */ 1057void 1058aac_release_command(struct aac_command *cm) 1059{ 1060 debug_called(3); 1061 1062 /* (re)initialise the command/FIB */ 1063 cm->cm_sgtable = NULL; 1064 cm->cm_flags = 0; 1065 cm->cm_complete = NULL; 1066 cm->cm_private = NULL; 1067 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1068 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1069 cm->cm_fib->Header.Flags = 0; 1070 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1071 1072 /* 1073 * These are duplicated in aac_start to cover the case where an 1074 * intermediate stage may have destroyed them. They're left 1075 * initialised here for debugging purposes only. 1076 */ 1077 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 1078 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1079 cm->cm_fib->Header.SenderData = 0; 1080 1081 aac_enqueue_free(cm); 1082} 1083 1084/* 1085 * Map helper for command/FIB allocation. 1086 */ 1087static void 1088aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1089{ 1090 uint32_t *fibphys; 1091 1092 fibphys = (uint32_t *)arg; 1093 1094 debug_called(3); 1095 1096 *fibphys = segs[0].ds_addr; 1097} 1098 1099/* 1100 * Allocate and initialise commands/FIBs for this adapter. 1101 */ 1102static int 1103aac_alloc_commands(struct aac_softc *sc) 1104{ 1105 struct aac_command *cm; 1106 struct aac_fibmap *fm; 1107 uint32_t fibphys; 1108 int i, error; 1109 1110 debug_called(1); 1111 1112 if (sc->total_fibs + AAC_FIB_COUNT > AAC_MAX_FIBS) 1113 return (ENOMEM); 1114 1115 fm = malloc(sizeof(struct aac_fibmap), M_AACBUF, M_NOWAIT|M_ZERO); 1116 1117 /* allocate the FIBs in DMAable memory and load them */ 1118 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs, 1119 BUS_DMA_NOWAIT, &fm->aac_fibmap)) { 1120 device_printf(sc->aac_dev, 1121 "Not enough contiguous memory available.\n"); 1122 free(fm, M_AACBUF); 1123 return (ENOMEM); 1124 } 1125 1126 bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs, 1127 AAC_FIB_COUNT * sizeof(struct aac_fib), 1128 aac_map_command_helper, &fibphys, 0); 1129 1130 /* initialise constant fields in the command structure */ 1131 bzero(fm->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1132 for (i = 0; i < AAC_FIB_COUNT; i++) { 1133 cm = sc->aac_commands + sc->total_fibs; 1134 fm->aac_commands = cm; 1135 cm->cm_sc = sc; 1136 cm->cm_fib = fm->aac_fibs + i; 1137 cm->cm_fibphys = fibphys + (i * sizeof(struct aac_fib)); 1138 cm->cm_index = sc->total_fibs; 1139 1140 if ((error = bus_dmamap_create(sc->aac_buffer_dmat, 0, 1141 &cm->cm_datamap)) == 0) 1142 aac_release_command(cm); 1143 else 1144 break; 1145 sc->total_fibs++; 1146 } 1147 1148 if (i > 0) { 1149 TAILQ_INSERT_TAIL(&sc->aac_fibmap_tqh, fm, fm_link); 1150 return (0); 1151 } 1152 1153 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1154 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1155 free(fm, M_AACBUF); 1156 return (ENOMEM); 1157} 1158 1159/* 1160 * Free FIBs owned by this adapter. 1161 */ 1162static void 1163aac_free_commands(struct aac_softc *sc) 1164{ 1165 struct aac_fibmap *fm; 1166 struct aac_command *cm; 1167 int i; 1168 1169 debug_called(1); 1170 1171 while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) { 1172 1173 TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link); 1174 /* 1175 * We check against total_fibs to handle partially 1176 * allocated blocks. 1177 */ 1178 for (i = 0; i < AAC_FIB_COUNT && sc->total_fibs--; i++) { 1179 cm = fm->aac_commands + i; 1180 bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap); 1181 } 1182 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1183 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1184 free(fm, M_AACBUF); 1185 } 1186} 1187 1188/* 1189 * Command-mapping helper function - populate this command's s/g table. 1190 */ 1191static void 1192aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1193{ 1194 struct aac_command *cm; 1195 struct aac_fib *fib; 1196 struct aac_sg_table *sg; 1197 int i; 1198 1199 debug_called(3); 1200 1201 cm = (struct aac_command *)arg; 1202 fib = cm->cm_fib; 1203 1204 /* find the s/g table */ 1205 sg = cm->cm_sgtable; 1206 1207 /* copy into the FIB */ 1208 if (sg != NULL) { 1209 sg->SgCount = nseg; 1210 for (i = 0; i < nseg; i++) { 1211 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1212 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1213 } 1214 /* update the FIB size for the s/g count */ 1215 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1216 } 1217 1218} 1219 1220/* 1221 * Map a command into controller-visible space. 1222 */ 1223static void 1224aac_map_command(struct aac_command *cm) 1225{ 1226 struct aac_softc *sc; 1227 1228 debug_called(2); 1229 1230 sc = cm->cm_sc; 1231 1232 /* don't map more than once */ 1233 if (cm->cm_flags & AAC_CMD_MAPPED) 1234 return; 1235 1236 if (cm->cm_datalen != 0) { 1237 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 1238 cm->cm_data, cm->cm_datalen, 1239 aac_map_command_sg, cm, 0); 1240 1241 if (cm->cm_flags & AAC_CMD_DATAIN) 1242 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1243 BUS_DMASYNC_PREREAD); 1244 if (cm->cm_flags & AAC_CMD_DATAOUT) 1245 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1246 BUS_DMASYNC_PREWRITE); 1247 } 1248 cm->cm_flags |= AAC_CMD_MAPPED; 1249} 1250 1251/* 1252 * Unmap a command from controller-visible space. 1253 */ 1254static void 1255aac_unmap_command(struct aac_command *cm) 1256{ 1257 struct aac_softc *sc; 1258 1259 debug_called(2); 1260 1261 sc = cm->cm_sc; 1262 1263 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1264 return; 1265 1266 if (cm->cm_datalen != 0) { 1267 if (cm->cm_flags & AAC_CMD_DATAIN) 1268 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1269 BUS_DMASYNC_POSTREAD); 1270 if (cm->cm_flags & AAC_CMD_DATAOUT) 1271 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1272 BUS_DMASYNC_POSTWRITE); 1273 1274 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1275 } 1276 cm->cm_flags &= ~AAC_CMD_MAPPED; 1277} 1278 1279/* 1280 * Hardware Interface 1281 */ 1282 1283/* 1284 * Initialise the adapter. 1285 */ 1286static void 1287aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1288{ 1289 struct aac_softc *sc; 1290 1291 debug_called(1); 1292 1293 sc = (struct aac_softc *)arg; 1294 1295 sc->aac_common_busaddr = segs[0].ds_addr; 1296} 1297 1298/* 1299 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1300 * firmware version 1.x are not compatible with this driver. 1301 */ 1302static int 1303aac_check_firmware(struct aac_softc *sc) 1304{ 1305 u_int32_t major, minor; 1306 1307 debug_called(1); 1308 1309 if (sc->quirks & AAC_QUIRK_PERC2QC) { 1310 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1311 NULL)) { 1312 device_printf(sc->aac_dev, 1313 "Error reading firmware version\n"); 1314 return (EIO); 1315 } 1316 1317 /* These numbers are stored as ASCII! */ 1318 major = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 4) & 0xff) - 0x30; 1319 minor = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 8) & 0xff) - 0x30; 1320 if (major == 1) { 1321 device_printf(sc->aac_dev, 1322 "Firmware version %d.%d is not supported.\n", 1323 major, minor); 1324 return (EINVAL); 1325 } 1326 } 1327 1328 return (0); 1329} 1330 1331static int 1332aac_init(struct aac_softc *sc) 1333{ 1334 struct aac_adapter_init *ip; 1335 time_t then; 1336 u_int32_t code; 1337 u_int8_t *qaddr; 1338 1339 debug_called(1); 1340 1341 /* 1342 * First wait for the adapter to come ready. 1343 */ 1344 then = time_second; 1345 do { 1346 code = AAC_GET_FWSTATUS(sc); 1347 if (code & AAC_SELF_TEST_FAILED) { 1348 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1349 return(ENXIO); 1350 } 1351 if (code & AAC_KERNEL_PANIC) { 1352 device_printf(sc->aac_dev, 1353 "FATAL: controller kernel panic\n"); 1354 return(ENXIO); 1355 } 1356 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1357 device_printf(sc->aac_dev, 1358 "FATAL: controller not coming ready, " 1359 "status %x\n", code); 1360 return(ENXIO); 1361 } 1362 } while (!(code & AAC_UP_AND_RUNNING)); 1363 1364 /* 1365 * Create DMA tag for the common structure and allocate it. 1366 */ 1367 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1368 1, 0, /* algnmnt, boundary */ 1369 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1370 BUS_SPACE_MAXADDR, /* highaddr */ 1371 NULL, NULL, /* filter, filterarg */ 1372 8192 + sizeof(struct aac_common), /* maxsize */ 1373 1, /* nsegments */ 1374 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1375 0, /* flags */ 1376 &sc->aac_common_dmat)) { 1377 device_printf(sc->aac_dev, 1378 "can't allocate common structure DMA tag\n"); 1379 return(ENOMEM); 1380 } 1381 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1382 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1383 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1384 return(ENOMEM); 1385 } 1386 1387 /* 1388 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1389 * below address 8192 in physical memory. 1390 * XXX If the padding is not needed, can it be put to use instead 1391 * of ignored? 1392 */ 1393 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1394 sc->aac_common, 8192 + sizeof(*sc->aac_common), 1395 aac_common_map, sc, 0); 1396 1397 if (sc->aac_common_busaddr < 8192) { 1398 (uint8_t *)sc->aac_common += 8192; 1399 sc->aac_common_busaddr += 8192; 1400 } 1401 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1402 1403 /* Allocate some FIBs and associated command structs */ 1404 TAILQ_INIT(&sc->aac_fibmap_tqh); 1405 sc->aac_commands = malloc(AAC_MAX_FIBS * sizeof(struct aac_command), 1406 M_AACBUF, M_WAITOK|M_ZERO); 1407 while (sc->total_fibs < AAC_PREALLOCATE_FIBS) { 1408 if (aac_alloc_commands(sc) != 0) 1409 break; 1410 } 1411 if (sc->total_fibs == 0) 1412 return (ENOMEM); 1413 1414 /* 1415 * Fill in the init structure. This tells the adapter about the 1416 * physical location of various important shared data structures. 1417 */ 1418 ip = &sc->aac_common->ac_init; 1419 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1420 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1421 1422 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1423 offsetof(struct aac_common, ac_fibs); 1424 ip->AdapterFibsVirtualAddress = (u_int32_t)&sc->aac_common->ac_fibs[0]; 1425 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1426 ip->AdapterFibAlign = sizeof(struct aac_fib); 1427 1428 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1429 offsetof(struct aac_common, ac_printf); 1430 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1431 1432 /* The adapter assumes that pages are 4K in size */ 1433 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1434 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1435 1436 /* 1437 * Initialise FIB queues. Note that it appears that the layout of the 1438 * indexes and the segmentation of the entries may be mandated by the 1439 * adapter, which is only told about the base of the queue index fields. 1440 * 1441 * The initial values of the indices are assumed to inform the adapter 1442 * of the sizes of the respective queues, and theoretically it could 1443 * work out the entire layout of the queue structures from this. We 1444 * take the easy route and just lay this area out like everyone else 1445 * does. 1446 * 1447 * The Linux driver uses a much more complex scheme whereby several 1448 * header records are kept for each queue. We use a couple of generic 1449 * list manipulation functions which 'know' the size of each list by 1450 * virtue of a table. 1451 */ 1452 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1453 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1454 sc->aac_queues = (struct aac_queue_table *)qaddr; 1455 ip->CommHeaderAddress = sc->aac_common_busaddr + 1456 ((u_int32_t)sc->aac_queues - 1457 (u_int32_t)sc->aac_common); 1458 1459 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1460 AAC_HOST_NORM_CMD_ENTRIES; 1461 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1462 AAC_HOST_NORM_CMD_ENTRIES; 1463 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1464 AAC_HOST_HIGH_CMD_ENTRIES; 1465 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1466 AAC_HOST_HIGH_CMD_ENTRIES; 1467 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1468 AAC_ADAP_NORM_CMD_ENTRIES; 1469 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1470 AAC_ADAP_NORM_CMD_ENTRIES; 1471 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1472 AAC_ADAP_HIGH_CMD_ENTRIES; 1473 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1474 AAC_ADAP_HIGH_CMD_ENTRIES; 1475 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1476 AAC_HOST_NORM_RESP_ENTRIES; 1477 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1478 AAC_HOST_NORM_RESP_ENTRIES; 1479 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1480 AAC_HOST_HIGH_RESP_ENTRIES; 1481 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1482 AAC_HOST_HIGH_RESP_ENTRIES; 1483 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1484 AAC_ADAP_NORM_RESP_ENTRIES; 1485 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1486 AAC_ADAP_NORM_RESP_ENTRIES; 1487 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1488 AAC_ADAP_HIGH_RESP_ENTRIES; 1489 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1490 AAC_ADAP_HIGH_RESP_ENTRIES; 1491 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1492 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1493 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1494 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1495 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1496 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1497 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1498 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1499 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1500 &sc->aac_queues->qt_HostNormRespQueue[0]; 1501 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1502 &sc->aac_queues->qt_HostHighRespQueue[0]; 1503 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1504 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1505 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1506 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1507 1508 /* 1509 * Do controller-type-specific initialisation 1510 */ 1511 switch (sc->aac_hwif) { 1512 case AAC_HWIF_I960RX: 1513 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1514 break; 1515 } 1516 1517 /* 1518 * Give the init structure to the controller. 1519 */ 1520 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1521 sc->aac_common_busaddr + 1522 offsetof(struct aac_common, ac_init), 0, 0, 0, 1523 NULL)) { 1524 device_printf(sc->aac_dev, 1525 "error establishing init structure\n"); 1526 return(EIO); 1527 } 1528 1529 return(0); 1530} 1531 1532/* 1533 * Send a synchronous command to the controller and wait for a result. 1534 */ 1535static int 1536aac_sync_command(struct aac_softc *sc, u_int32_t command, 1537 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1538 u_int32_t *sp) 1539{ 1540 time_t then; 1541 u_int32_t status; 1542 1543 debug_called(3); 1544 1545 /* populate the mailbox */ 1546 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1547 1548 /* ensure the sync command doorbell flag is cleared */ 1549 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1550 1551 /* then set it to signal the adapter */ 1552 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1553 1554 /* spin waiting for the command to complete */ 1555 then = time_second; 1556 do { 1557 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1558 debug(2, "timed out"); 1559 return(EIO); 1560 } 1561 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1562 1563 /* clear the completion flag */ 1564 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1565 1566 /* get the command status */ 1567 status = AAC_GET_MAILBOXSTATUS(sc); 1568 if (sp != NULL) 1569 *sp = status; 1570 return(0); 1571} 1572 1573/* 1574 * Grab the sync fib area. 1575 */ 1576int 1577aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1578{ 1579 1580 /* 1581 * If the force flag is set, the system is shutting down, or in 1582 * trouble. Ignore the mutex. 1583 */ 1584 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1585 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1586 1587 *fib = &sc->aac_common->ac_sync_fib; 1588 1589 return (1); 1590} 1591 1592/* 1593 * Release the sync fib area. 1594 */ 1595void 1596aac_release_sync_fib(struct aac_softc *sc) 1597{ 1598 1599 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1600} 1601 1602/* 1603 * Send a synchronous FIB to the controller and wait for a result. 1604 */ 1605int 1606aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1607 struct aac_fib *fib, u_int16_t datasize) 1608{ 1609 debug_called(3); 1610 1611 if (datasize > AAC_FIB_DATASIZE) 1612 return(EINVAL); 1613 1614 /* 1615 * Set up the sync FIB 1616 */ 1617 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1618 AAC_FIBSTATE_INITIALISED | 1619 AAC_FIBSTATE_EMPTY; 1620 fib->Header.XferState |= xferstate; 1621 fib->Header.Command = command; 1622 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1623 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1624 fib->Header.SenderSize = sizeof(struct aac_fib); 1625 fib->Header.SenderFibAddress = (u_int32_t)fib; 1626 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1627 offsetof(struct aac_common, 1628 ac_sync_fib); 1629 1630 /* 1631 * Give the FIB to the controller, wait for a response. 1632 */ 1633 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1634 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1635 debug(2, "IO error"); 1636 return(EIO); 1637 } 1638 1639 return (0); 1640} 1641 1642/* 1643 * Adapter-space FIB queue manipulation 1644 * 1645 * Note that the queue implementation here is a little funky; neither the PI or 1646 * CI will ever be zero. This behaviour is a controller feature. 1647 */ 1648static struct { 1649 int size; 1650 int notify; 1651} aac_qinfo[] = { 1652 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1653 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1654 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1655 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1656 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1657 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1658 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1659 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1660}; 1661 1662/* 1663 * Atomically insert an entry into the nominated queue, returns 0 on success or 1664 * EBUSY if the queue is full. 1665 * 1666 * Note: it would be more efficient to defer notifying the controller in 1667 * the case where we may be inserting several entries in rapid succession, 1668 * but implementing this usefully may be difficult (it would involve a 1669 * separate queue/notify interface). 1670 */ 1671static int 1672aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1673{ 1674 u_int32_t pi, ci; 1675 int error; 1676 u_int32_t fib_size; 1677 u_int32_t fib_addr; 1678 1679 debug_called(3); 1680 1681 fib_size = cm->cm_fib->Header.Size; 1682 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1683 1684 /* get the producer/consumer indices */ 1685 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1686 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1687 1688 /* wrap the queue? */ 1689 if (pi >= aac_qinfo[queue].size) 1690 pi = 0; 1691 1692 /* check for queue full */ 1693 if ((pi + 1) == ci) { 1694 error = EBUSY; 1695 goto out; 1696 } 1697 1698 /* populate queue entry */ 1699 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1700 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1701 1702 /* update producer index */ 1703 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1704 1705 /* 1706 * To avoid a race with its completion interrupt, place this command on 1707 * the busy queue prior to advertising it to the controller. 1708 */ 1709 aac_enqueue_busy(cm); 1710 1711 /* notify the adapter if we know how */ 1712 if (aac_qinfo[queue].notify != 0) 1713 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1714 1715 error = 0; 1716 1717out: 1718 return(error); 1719} 1720 1721/* 1722 * Atomically remove one entry from the nominated queue, returns 0 on 1723 * success or ENOENT if the queue is empty. 1724 */ 1725static int 1726aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1727 struct aac_fib **fib_addr) 1728{ 1729 u_int32_t pi, ci; 1730 int error; 1731 int notify; 1732 1733 debug_called(3); 1734 1735 /* get the producer/consumer indices */ 1736 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1737 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1738 1739 /* check for queue empty */ 1740 if (ci == pi) { 1741 error = ENOENT; 1742 goto out; 1743 } 1744 1745 notify = 0; 1746 if (ci == pi + 1) 1747 notify++; 1748 1749 /* wrap the queue? */ 1750 if (ci >= aac_qinfo[queue].size) 1751 ci = 0; 1752 1753 /* fetch the entry */ 1754 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1755 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + 1756 ci)->aq_fib_addr; 1757 1758 /* 1759 * Is this a fast response? If it is, update the fib fields in 1760 * local memory so the whole fib doesn't have to be DMA'd back up. 1761 */ 1762 if (*(uintptr_t *)fib_addr & 0x01) { 1763 *(uintptr_t *)fib_addr &= ~0x01; 1764 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1765 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1766 } 1767 /* update consumer index */ 1768 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1769 1770 /* if we have made the queue un-full, notify the adapter */ 1771 if (notify && (aac_qinfo[queue].notify != 0)) 1772 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1773 error = 0; 1774 1775out: 1776 return(error); 1777} 1778 1779/* 1780 * Put our response to an Adapter Initialed Fib on the response queue 1781 */ 1782static int 1783aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1784{ 1785 u_int32_t pi, ci; 1786 int error; 1787 u_int32_t fib_size; 1788 u_int32_t fib_addr; 1789 1790 debug_called(1); 1791 1792 /* Tell the adapter where the FIB is */ 1793 fib_size = fib->Header.Size; 1794 fib_addr = fib->Header.SenderFibAddress; 1795 fib->Header.ReceiverFibAddress = fib_addr; 1796 1797 /* get the producer/consumer indices */ 1798 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1799 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1800 1801 /* wrap the queue? */ 1802 if (pi >= aac_qinfo[queue].size) 1803 pi = 0; 1804 1805 /* check for queue full */ 1806 if ((pi + 1) == ci) { 1807 error = EBUSY; 1808 goto out; 1809 } 1810 1811 /* populate queue entry */ 1812 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1813 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1814 1815 /* update producer index */ 1816 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1817 1818 /* notify the adapter if we know how */ 1819 if (aac_qinfo[queue].notify != 0) 1820 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1821 1822 error = 0; 1823 1824out: 1825 return(error); 1826} 1827 1828/* 1829 * Check for commands that have been outstanding for a suspiciously long time, 1830 * and complain about them. 1831 */ 1832static void 1833aac_timeout(struct aac_softc *sc) 1834{ 1835 struct aac_command *cm; 1836 time_t deadline; 1837 1838 /* 1839 * Traverse the busy command list, bitch about late commands once 1840 * only. 1841 */ 1842 deadline = time_second - AAC_CMD_TIMEOUT; 1843 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1844 if ((cm->cm_timestamp < deadline) 1845 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1846 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1847 device_printf(sc->aac_dev, 1848 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 1849 cm, (int)(time_second-cm->cm_timestamp)); 1850 AAC_PRINT_FIB(sc, cm->cm_fib); 1851 } 1852 } 1853 1854 return; 1855} 1856 1857/* 1858 * Interface Function Vectors 1859 */ 1860 1861/* 1862 * Read the current firmware status word. 1863 */ 1864static int 1865aac_sa_get_fwstatus(struct aac_softc *sc) 1866{ 1867 debug_called(3); 1868 1869 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 1870} 1871 1872static int 1873aac_rx_get_fwstatus(struct aac_softc *sc) 1874{ 1875 debug_called(3); 1876 1877 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 1878} 1879 1880static int 1881aac_fa_get_fwstatus(struct aac_softc *sc) 1882{ 1883 int val; 1884 1885 debug_called(3); 1886 1887 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 1888 return (val); 1889} 1890 1891/* 1892 * Notify the controller of a change in a given queue 1893 */ 1894 1895static void 1896aac_sa_qnotify(struct aac_softc *sc, int qbit) 1897{ 1898 debug_called(3); 1899 1900 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 1901} 1902 1903static void 1904aac_rx_qnotify(struct aac_softc *sc, int qbit) 1905{ 1906 debug_called(3); 1907 1908 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 1909} 1910 1911static void 1912aac_fa_qnotify(struct aac_softc *sc, int qbit) 1913{ 1914 debug_called(3); 1915 1916 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 1917 AAC_FA_HACK(sc); 1918} 1919 1920/* 1921 * Get the interrupt reason bits 1922 */ 1923static int 1924aac_sa_get_istatus(struct aac_softc *sc) 1925{ 1926 debug_called(3); 1927 1928 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 1929} 1930 1931static int 1932aac_rx_get_istatus(struct aac_softc *sc) 1933{ 1934 debug_called(3); 1935 1936 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 1937} 1938 1939static int 1940aac_fa_get_istatus(struct aac_softc *sc) 1941{ 1942 int val; 1943 1944 debug_called(3); 1945 1946 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 1947 return (val); 1948} 1949 1950/* 1951 * Clear some interrupt reason bits 1952 */ 1953static void 1954aac_sa_clear_istatus(struct aac_softc *sc, int mask) 1955{ 1956 debug_called(3); 1957 1958 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 1959} 1960 1961static void 1962aac_rx_clear_istatus(struct aac_softc *sc, int mask) 1963{ 1964 debug_called(3); 1965 1966 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 1967} 1968 1969static void 1970aac_fa_clear_istatus(struct aac_softc *sc, int mask) 1971{ 1972 debug_called(3); 1973 1974 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 1975 AAC_FA_HACK(sc); 1976} 1977 1978/* 1979 * Populate the mailbox and set the command word 1980 */ 1981static void 1982aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 1983 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 1984{ 1985 debug_called(4); 1986 1987 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 1988 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 1989 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 1990 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 1991 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 1992} 1993 1994static void 1995aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 1996 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 1997{ 1998 debug_called(4); 1999 2000 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2001 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2002 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2003 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2004 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2005} 2006 2007static void 2008aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2009 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2010{ 2011 debug_called(4); 2012 2013 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2014 AAC_FA_HACK(sc); 2015 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2016 AAC_FA_HACK(sc); 2017 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2018 AAC_FA_HACK(sc); 2019 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2020 AAC_FA_HACK(sc); 2021 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2022 AAC_FA_HACK(sc); 2023} 2024 2025/* 2026 * Fetch the immediate command status word 2027 */ 2028static int 2029aac_sa_get_mailboxstatus(struct aac_softc *sc) 2030{ 2031 debug_called(4); 2032 2033 return(AAC_GETREG4(sc, AAC_SA_MAILBOX)); 2034} 2035 2036static int 2037aac_rx_get_mailboxstatus(struct aac_softc *sc) 2038{ 2039 debug_called(4); 2040 2041 return(AAC_GETREG4(sc, AAC_RX_MAILBOX)); 2042} 2043 2044static int 2045aac_fa_get_mailboxstatus(struct aac_softc *sc) 2046{ 2047 int val; 2048 2049 debug_called(4); 2050 2051 val = AAC_GETREG4(sc, AAC_FA_MAILBOX); 2052 return (val); 2053} 2054 2055/* 2056 * Set/clear interrupt masks 2057 */ 2058static void 2059aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2060{ 2061 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2062 2063 if (enable) { 2064 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2065 } else { 2066 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2067 } 2068} 2069 2070static void 2071aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2072{ 2073 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2074 2075 if (enable) { 2076 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2077 } else { 2078 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2079 } 2080} 2081 2082static void 2083aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2084{ 2085 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2086 2087 if (enable) { 2088 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2089 AAC_FA_HACK(sc); 2090 } else { 2091 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2092 AAC_FA_HACK(sc); 2093 } 2094} 2095 2096/* 2097 * Debugging and Diagnostics 2098 */ 2099 2100/* 2101 * Print some information about the controller. 2102 */ 2103static void 2104aac_describe_controller(struct aac_softc *sc) 2105{ 2106 struct aac_fib *fib; 2107 struct aac_adapter_info *info; 2108 2109 debug_called(2); 2110 2111 aac_alloc_sync_fib(sc, &fib, 0); 2112 2113 fib->data[0] = 0; 2114 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2115 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2116 aac_release_sync_fib(sc); 2117 return; 2118 } 2119 info = (struct aac_adapter_info *)&fib->data[0]; 2120 2121 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2122 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2123 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2124 aac_describe_code(aac_battery_platform, 2125 info->batteryPlatform)); 2126 2127 /* save the kernel revision structure for later use */ 2128 sc->aac_revision = info->KernelRevision; 2129 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2130 info->KernelRevision.external.comp.major, 2131 info->KernelRevision.external.comp.minor, 2132 info->KernelRevision.external.comp.dash, 2133 info->KernelRevision.buildNumber, 2134 (u_int32_t)(info->SerialNumber & 0xffffff)); 2135 2136 aac_release_sync_fib(sc); 2137} 2138 2139/* 2140 * Look up a text description of a numeric error code and return a pointer to 2141 * same. 2142 */ 2143static char * 2144aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2145{ 2146 int i; 2147 2148 for (i = 0; table[i].string != NULL; i++) 2149 if (table[i].code == code) 2150 return(table[i].string); 2151 return(table[i + 1].string); 2152} 2153 2154/* 2155 * Management Interface 2156 */ 2157 2158static int 2159aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2160{ 2161 struct aac_softc *sc; 2162 2163 debug_called(2); 2164 2165 sc = dev->si_drv1; 2166 2167 /* Check to make sure the device isn't already open */ 2168 if (sc->aac_state & AAC_STATE_OPEN) { 2169 return EBUSY; 2170 } 2171 sc->aac_state |= AAC_STATE_OPEN; 2172 2173 return 0; 2174} 2175 2176static int 2177aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2178{ 2179 struct aac_softc *sc; 2180 2181 debug_called(2); 2182 2183 sc = dev->si_drv1; 2184 2185 /* Mark this unit as no longer open */ 2186 sc->aac_state &= ~AAC_STATE_OPEN; 2187 2188 return 0; 2189} 2190 2191static int 2192aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2193{ 2194 union aac_statrequest *as; 2195 struct aac_softc *sc; 2196 int error = 0; 2197 int i; 2198 2199 debug_called(2); 2200 2201 as = (union aac_statrequest *)arg; 2202 sc = dev->si_drv1; 2203 2204 switch (cmd) { 2205 case AACIO_STATS: 2206 switch (as->as_item) { 2207 case AACQ_FREE: 2208 case AACQ_BIO: 2209 case AACQ_READY: 2210 case AACQ_BUSY: 2211 case AACQ_COMPLETE: 2212 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2213 sizeof(struct aac_qstat)); 2214 break; 2215 default: 2216 error = ENOENT; 2217 break; 2218 } 2219 break; 2220 2221 case FSACTL_SENDFIB: 2222 arg = *(caddr_t*)arg; 2223 case FSACTL_LNX_SENDFIB: 2224 debug(1, "FSACTL_SENDFIB"); 2225 error = aac_ioctl_sendfib(sc, arg); 2226 break; 2227 case FSACTL_AIF_THREAD: 2228 case FSACTL_LNX_AIF_THREAD: 2229 debug(1, "FSACTL_AIF_THREAD"); 2230 error = EINVAL; 2231 break; 2232 case FSACTL_OPEN_GET_ADAPTER_FIB: 2233 arg = *(caddr_t*)arg; 2234 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2235 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2236 /* 2237 * Pass the caller out an AdapterFibContext. 2238 * 2239 * Note that because we only support one opener, we 2240 * basically ignore this. Set the caller's context to a magic 2241 * number just in case. 2242 * 2243 * The Linux code hands the driver a pointer into kernel space, 2244 * and then trusts it when the caller hands it back. Aiee! 2245 * Here, we give it the proc pointer of the per-adapter aif 2246 * thread. It's only used as a sanity check in other calls. 2247 */ 2248 i = (int)sc->aifthread; 2249 error = copyout(&i, arg, sizeof(i)); 2250 break; 2251 case FSACTL_GET_NEXT_ADAPTER_FIB: 2252 arg = *(caddr_t*)arg; 2253 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2254 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2255 error = aac_getnext_aif(sc, arg); 2256 break; 2257 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2258 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2259 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2260 /* don't do anything here */ 2261 break; 2262 case FSACTL_MINIPORT_REV_CHECK: 2263 arg = *(caddr_t*)arg; 2264 case FSACTL_LNX_MINIPORT_REV_CHECK: 2265 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2266 error = aac_rev_check(sc, arg); 2267 break; 2268 case FSACTL_QUERY_DISK: 2269 arg = *(caddr_t*)arg; 2270 case FSACTL_LNX_QUERY_DISK: 2271 debug(1, "FSACTL_QUERY_DISK"); 2272 error = aac_query_disk(sc, arg); 2273 break; 2274 case FSACTL_DELETE_DISK: 2275 case FSACTL_LNX_DELETE_DISK: 2276 /* 2277 * We don't trust the underland to tell us when to delete a 2278 * container, rather we rely on an AIF coming from the 2279 * controller 2280 */ 2281 error = 0; 2282 break; 2283 default: 2284 debug(1, "unsupported cmd 0x%lx\n", cmd); 2285 error = EINVAL; 2286 break; 2287 } 2288 return(error); 2289} 2290 2291static int 2292aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2293{ 2294 struct aac_softc *sc; 2295 int revents; 2296 2297 sc = dev->si_drv1; 2298 revents = 0; 2299 2300 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2301 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2302 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2303 revents |= poll_events & (POLLIN | POLLRDNORM); 2304 } 2305 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2306 2307 if (revents == 0) { 2308 if (poll_events & (POLLIN | POLLRDNORM)) 2309 selrecord(td, &sc->rcv_select); 2310 } 2311 2312 return (revents); 2313} 2314 2315/* 2316 * Send a FIB supplied from userspace 2317 */ 2318static int 2319aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2320{ 2321 struct aac_command *cm; 2322 int size, error; 2323 2324 debug_called(2); 2325 2326 cm = NULL; 2327 2328 /* 2329 * Get a command 2330 */ 2331 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 2332 if (aac_alloc_command(sc, &cm)) { 2333 error = EBUSY; 2334 goto out; 2335 } 2336 2337 /* 2338 * Fetch the FIB header, then re-copy to get data as well. 2339 */ 2340 if ((error = copyin(ufib, cm->cm_fib, 2341 sizeof(struct aac_fib_header))) != 0) 2342 goto out; 2343 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2344 if (size > sizeof(struct aac_fib)) { 2345 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2346 size, sizeof(struct aac_fib)); 2347 size = sizeof(struct aac_fib); 2348 } 2349 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2350 goto out; 2351 cm->cm_fib->Header.Size = size; 2352 cm->cm_timestamp = time_second; 2353 2354 /* 2355 * Pass the FIB to the controller, wait for it to complete. 2356 */ 2357 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2358 device_printf(sc->aac_dev, 2359 "aac_wait_command return %d\n", error); 2360 goto out; 2361 } 2362 2363 /* 2364 * Copy the FIB and data back out to the caller. 2365 */ 2366 size = cm->cm_fib->Header.Size; 2367 if (size > sizeof(struct aac_fib)) { 2368 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2369 size, sizeof(struct aac_fib)); 2370 size = sizeof(struct aac_fib); 2371 } 2372 error = copyout(cm->cm_fib, ufib, size); 2373 2374out: 2375 if (cm != NULL) { 2376 aac_release_command(cm); 2377 } 2378 2379 AAC_LOCK_RELEASE(&sc->aac_io_lock); 2380 return(error); 2381} 2382 2383/* 2384 * Handle an AIF sent to us by the controller; queue it for later reference. 2385 * If the queue fills up, then drop the older entries. 2386 */ 2387static void 2388aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2389{ 2390 struct aac_aif_command *aif; 2391 struct aac_container *co, *co_next; 2392 struct aac_mntinfo *mi; 2393 struct aac_mntinforesp *mir = NULL; 2394 u_int16_t rsize; 2395 int next, found; 2396 int added = 0, i = 0; 2397 2398 debug_called(2); 2399 2400 aif = (struct aac_aif_command*)&fib->data[0]; 2401 aac_print_aif(sc, aif); 2402 2403 /* Is it an event that we should care about? */ 2404 switch (aif->command) { 2405 case AifCmdEventNotify: 2406 switch (aif->data.EN.type) { 2407 case AifEnAddContainer: 2408 case AifEnDeleteContainer: 2409 /* 2410 * A container was added or deleted, but the message 2411 * doesn't tell us anything else! Re-enumerate the 2412 * containers and sort things out. 2413 */ 2414 aac_alloc_sync_fib(sc, &fib, 0); 2415 mi = (struct aac_mntinfo *)&fib->data[0]; 2416 do { 2417 /* 2418 * Ask the controller for its containers one at 2419 * a time. 2420 * XXX What if the controller's list changes 2421 * midway through this enumaration? 2422 * XXX This should be done async. 2423 */ 2424 bzero(mi, sizeof(struct aac_mntinfo)); 2425 mi->Command = VM_NameServe; 2426 mi->MntType = FT_FILESYS; 2427 mi->MntCount = i; 2428 rsize = sizeof(mir); 2429 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2430 sizeof(struct aac_mntinfo))) { 2431 debug(2, "Error probing container %d\n", 2432 i); 2433 continue; 2434 } 2435 mir = (struct aac_mntinforesp *)&fib->data[0]; 2436 /* 2437 * Check the container against our list. 2438 * co->co_found was already set to 0 in a 2439 * previous run. 2440 */ 2441 if ((mir->Status == ST_OK) && 2442 (mir->MntTable[0].VolType != CT_NONE)) { 2443 found = 0; 2444 TAILQ_FOREACH(co, 2445 &sc->aac_container_tqh, 2446 co_link) { 2447 if (co->co_mntobj.ObjectId == 2448 mir->MntTable[0].ObjectId) { 2449 co->co_found = 1; 2450 found = 1; 2451 break; 2452 } 2453 } 2454 /* 2455 * If the container matched, continue 2456 * in the list. 2457 */ 2458 if (found) { 2459 i++; 2460 continue; 2461 } 2462 2463 /* 2464 * This is a new container. Do all the 2465 * appropriate things to set it up. 2466 */ 2467 aac_add_container(sc, mir, 1); 2468 added = 1; 2469 } 2470 i++; 2471 } while ((i < mir->MntRespCount) && 2472 (i < AAC_MAX_CONTAINERS)); 2473 aac_release_sync_fib(sc); 2474 2475 /* 2476 * Go through our list of containers and see which ones 2477 * were not marked 'found'. Since the controller didn't 2478 * list them they must have been deleted. Do the 2479 * appropriate steps to destroy the device. Also reset 2480 * the co->co_found field. 2481 */ 2482 co = TAILQ_FIRST(&sc->aac_container_tqh); 2483 while (co != NULL) { 2484 if (co->co_found == 0) { 2485 device_delete_child(sc->aac_dev, 2486 co->co_disk); 2487 co_next = TAILQ_NEXT(co, co_link); 2488 AAC_LOCK_ACQUIRE(&sc-> 2489 aac_container_lock); 2490 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2491 co_link); 2492 AAC_LOCK_RELEASE(&sc-> 2493 aac_container_lock); 2494 FREE(co, M_AACBUF); 2495 co = co_next; 2496 } else { 2497 co->co_found = 0; 2498 co = TAILQ_NEXT(co, co_link); 2499 } 2500 } 2501 2502 /* Attach the newly created containers */ 2503 if (added) 2504 bus_generic_attach(sc->aac_dev); 2505 2506 break; 2507 2508 default: 2509 break; 2510 } 2511 2512 default: 2513 break; 2514 } 2515 2516 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2517 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2518 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2519 if (next != sc->aac_aifq_tail) { 2520 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2521 sc->aac_aifq_head = next; 2522 2523 /* On the off chance that someone is sleeping for an aif... */ 2524 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2525 wakeup(sc->aac_aifq); 2526 /* Wakeup any poll()ers */ 2527 selwakeup(&sc->rcv_select); 2528 } 2529 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2530 2531 return; 2532} 2533 2534/* 2535 * Return the Revision of the driver to userspace and check to see if the 2536 * userspace app is possibly compatible. This is extremely bogus since 2537 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2538 * returning what the card reported. 2539 */ 2540static int 2541aac_rev_check(struct aac_softc *sc, caddr_t udata) 2542{ 2543 struct aac_rev_check rev_check; 2544 struct aac_rev_check_resp rev_check_resp; 2545 int error = 0; 2546 2547 debug_called(2); 2548 2549 /* 2550 * Copyin the revision struct from userspace 2551 */ 2552 if ((error = copyin(udata, (caddr_t)&rev_check, 2553 sizeof(struct aac_rev_check))) != 0) { 2554 return error; 2555 } 2556 2557 debug(2, "Userland revision= %d\n", 2558 rev_check.callingRevision.buildNumber); 2559 2560 /* 2561 * Doctor up the response struct. 2562 */ 2563 rev_check_resp.possiblyCompatible = 1; 2564 rev_check_resp.adapterSWRevision.external.ul = 2565 sc->aac_revision.external.ul; 2566 rev_check_resp.adapterSWRevision.buildNumber = 2567 sc->aac_revision.buildNumber; 2568 2569 return(copyout((caddr_t)&rev_check_resp, udata, 2570 sizeof(struct aac_rev_check_resp))); 2571} 2572 2573/* 2574 * Pass the caller the next AIF in their queue 2575 */ 2576static int 2577aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2578{ 2579 struct get_adapter_fib_ioctl agf; 2580 int error; 2581 2582 debug_called(2); 2583 2584 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2585 2586 /* 2587 * Check the magic number that we gave the caller. 2588 */ 2589 if (agf.AdapterFibContext != (int)sc->aifthread) { 2590 error = EFAULT; 2591 } else { 2592 error = aac_return_aif(sc, agf.AifFib); 2593 if ((error == EAGAIN) && (agf.Wait)) { 2594 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2595 while (error == EAGAIN) { 2596 error = tsleep(sc->aac_aifq, PRIBIO | 2597 PCATCH, "aacaif", 0); 2598 if (error == 0) 2599 error = aac_return_aif(sc, 2600 agf.AifFib); 2601 } 2602 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2603 } 2604 } 2605 } 2606 return(error); 2607} 2608 2609/* 2610 * Hand the next AIF off the top of the queue out to userspace. 2611 */ 2612static int 2613aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2614{ 2615 int error; 2616 2617 debug_called(2); 2618 2619 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2620 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2621 error = EAGAIN; 2622 } else { 2623 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2624 sizeof(struct aac_aif_command)); 2625 if (error) 2626 device_printf(sc->aac_dev, 2627 "aac_return_aif: copyout returned %d\n", error); 2628 if (!error) 2629 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2630 AAC_AIFQ_LENGTH; 2631 } 2632 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2633 return(error); 2634} 2635 2636/* 2637 * Give the userland some information about the container. The AAC arch 2638 * expects the driver to be a SCSI passthrough type driver, so it expects 2639 * the containers to have b:t:l numbers. Fake it. 2640 */ 2641static int 2642aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2643{ 2644 struct aac_query_disk query_disk; 2645 struct aac_container *co; 2646 struct aac_disk *disk; 2647 int error, id; 2648 2649 debug_called(2); 2650 2651 disk = NULL; 2652 2653 error = copyin(uptr, (caddr_t)&query_disk, 2654 sizeof(struct aac_query_disk)); 2655 if (error) 2656 return (error); 2657 2658 id = query_disk.ContainerNumber; 2659 if (id == -1) 2660 return (EINVAL); 2661 2662 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2663 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2664 if (co->co_mntobj.ObjectId == id) 2665 break; 2666 } 2667 2668 if (co == NULL) { 2669 query_disk.Valid = 0; 2670 query_disk.Locked = 0; 2671 query_disk.Deleted = 1; /* XXX is this right? */ 2672 } else { 2673 disk = device_get_softc(co->co_disk); 2674 query_disk.Valid = 1; 2675 query_disk.Locked = 2676 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2677 query_disk.Deleted = 0; 2678 query_disk.Bus = device_get_unit(sc->aac_dev); 2679 query_disk.Target = disk->unit; 2680 query_disk.Lun = 0; 2681 query_disk.UnMapped = 0; 2682 sprintf(&query_disk.diskDeviceName[0], "%s%d", 2683 disk->ad_disk.d_name, disk->ad_disk.d_unit); 2684 } 2685 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2686 2687 error = copyout((caddr_t)&query_disk, uptr, 2688 sizeof(struct aac_query_disk)); 2689 2690 return (error); 2691} 2692 2693static void 2694aac_get_bus_info(struct aac_softc *sc) 2695{ 2696 struct aac_fib *fib; 2697 struct aac_ctcfg *c_cmd; 2698 struct aac_ctcfg_resp *c_resp; 2699 struct aac_vmioctl *vmi; 2700 struct aac_vmi_businf_resp *vmi_resp; 2701 struct aac_getbusinf businfo; 2702 struct aac_sim *caminf; 2703 device_t child; 2704 int i, found, error; 2705 2706 aac_alloc_sync_fib(sc, &fib, 0); 2707 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2708 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2709 2710 c_cmd->Command = VM_ContainerConfig; 2711 c_cmd->cmd = CT_GET_SCSI_METHOD; 2712 c_cmd->param = 0; 2713 2714 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2715 sizeof(struct aac_ctcfg)); 2716 if (error) { 2717 device_printf(sc->aac_dev, "Error %d sending " 2718 "VM_ContainerConfig command\n", error); 2719 aac_release_sync_fib(sc); 2720 return; 2721 } 2722 2723 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2724 if (c_resp->Status != ST_OK) { 2725 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2726 c_resp->Status); 2727 aac_release_sync_fib(sc); 2728 return; 2729 } 2730 2731 sc->scsi_method_id = c_resp->param; 2732 2733 vmi = (struct aac_vmioctl *)&fib->data[0]; 2734 bzero(vmi, sizeof(struct aac_vmioctl)); 2735 2736 vmi->Command = VM_Ioctl; 2737 vmi->ObjType = FT_DRIVE; 2738 vmi->MethId = sc->scsi_method_id; 2739 vmi->ObjId = 0; 2740 vmi->IoctlCmd = GetBusInfo; 2741 2742 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2743 sizeof(struct aac_vmioctl)); 2744 if (error) { 2745 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2746 error); 2747 aac_release_sync_fib(sc); 2748 return; 2749 } 2750 2751 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2752 if (vmi_resp->Status != ST_OK) { 2753 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2754 vmi_resp->Status); 2755 aac_release_sync_fib(sc); 2756 return; 2757 } 2758 2759 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2760 aac_release_sync_fib(sc); 2761 2762 found = 0; 2763 for (i = 0; i < businfo.BusCount; i++) { 2764 if (businfo.BusValid[i] != AAC_BUS_VALID) 2765 continue; 2766 2767 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), 2768 M_AACBUF, M_NOWAIT | M_ZERO); 2769 if (caminf == NULL) 2770 continue; 2771 2772 child = device_add_child(sc->aac_dev, "aacp", -1); 2773 if (child == NULL) { 2774 device_printf(sc->aac_dev, "device_add_child failed\n"); 2775 continue; 2776 } 2777 2778 caminf->TargetsPerBus = businfo.TargetsPerBus; 2779 caminf->BusNumber = i; 2780 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2781 caminf->aac_sc = sc; 2782 caminf->sim_dev = child; 2783 2784 device_set_ivars(child, caminf); 2785 device_set_desc(child, "SCSI Passthrough Bus"); 2786 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2787 2788 found = 1; 2789 } 2790 2791 if (found) 2792 bus_generic_attach(sc->aac_dev); 2793 2794 return; 2795} 2796