aac.c revision 117361
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 117361 2003-07-09 19:19:16Z scottl $ 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#include <sys/ioccom.h> 47 48#include <sys/bus.h> 49#include <sys/conf.h> 50#include <sys/signalvar.h> 51#include <sys/time.h> 52#include <sys/eventhandler.h> 53 54#include <machine/bus_memio.h> 55#include <machine/bus.h> 56#include <machine/resource.h> 57 58#include <dev/aac/aacreg.h> 59#include <dev/aac/aac_ioctl.h> 60#include <dev/aac/aacvar.h> 61#include <dev/aac/aac_tables.h> 62 63static void aac_startup(void *arg); 64static void aac_add_container(struct aac_softc *sc, 65 struct aac_mntinforesp *mir, int f); 66static void aac_get_bus_info(struct aac_softc *sc); 67 68/* Command Processing */ 69static void aac_timeout(struct aac_softc *sc); 70static int aac_start(struct aac_command *cm); 71static void aac_complete(void *context, int pending); 72static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 73static void aac_bio_complete(struct aac_command *cm); 74static int aac_wait_command(struct aac_command *cm, int timeout); 75static void aac_command_thread(struct aac_softc *sc); 76 77/* Command Buffer Management */ 78static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 79 int nseg, int error); 80static int aac_alloc_commands(struct aac_softc *sc); 81static void aac_free_commands(struct aac_softc *sc); 82static void aac_map_command(struct aac_command *cm); 83static void aac_unmap_command(struct aac_command *cm); 84 85/* Hardware Interface */ 86static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 87 int error); 88static int aac_check_firmware(struct aac_softc *sc); 89static int aac_init(struct aac_softc *sc); 90static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 91 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 92 u_int32_t arg3, u_int32_t *sp); 93static int aac_enqueue_fib(struct aac_softc *sc, int queue, 94 struct aac_command *cm); 95static int aac_dequeue_fib(struct aac_softc *sc, int queue, 96 u_int32_t *fib_size, struct aac_fib **fib_addr); 97static int aac_enqueue_response(struct aac_softc *sc, int queue, 98 struct aac_fib *fib); 99 100/* Falcon/PPC interface */ 101static int aac_fa_get_fwstatus(struct aac_softc *sc); 102static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 103static int aac_fa_get_istatus(struct aac_softc *sc); 104static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 105static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 106 u_int32_t arg0, u_int32_t arg1, 107 u_int32_t arg2, u_int32_t arg3); 108static int aac_fa_get_mailbox(struct aac_softc *sc, int mb); 109static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 110 111struct aac_interface aac_fa_interface = { 112 aac_fa_get_fwstatus, 113 aac_fa_qnotify, 114 aac_fa_get_istatus, 115 aac_fa_clear_istatus, 116 aac_fa_set_mailbox, 117 aac_fa_get_mailbox, 118 aac_fa_set_interrupts 119}; 120 121/* StrongARM interface */ 122static int aac_sa_get_fwstatus(struct aac_softc *sc); 123static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 124static int aac_sa_get_istatus(struct aac_softc *sc); 125static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 126static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 127 u_int32_t arg0, u_int32_t arg1, 128 u_int32_t arg2, u_int32_t arg3); 129static int aac_sa_get_mailbox(struct aac_softc *sc, int mb); 130static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 131 132struct aac_interface aac_sa_interface = { 133 aac_sa_get_fwstatus, 134 aac_sa_qnotify, 135 aac_sa_get_istatus, 136 aac_sa_clear_istatus, 137 aac_sa_set_mailbox, 138 aac_sa_get_mailbox, 139 aac_sa_set_interrupts 140}; 141 142/* i960Rx interface */ 143static int aac_rx_get_fwstatus(struct aac_softc *sc); 144static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 145static int aac_rx_get_istatus(struct aac_softc *sc); 146static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 147static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 148 u_int32_t arg0, u_int32_t arg1, 149 u_int32_t arg2, u_int32_t arg3); 150static int aac_rx_get_mailbox(struct aac_softc *sc, int mb); 151static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 152 153struct aac_interface aac_rx_interface = { 154 aac_rx_get_fwstatus, 155 aac_rx_qnotify, 156 aac_rx_get_istatus, 157 aac_rx_clear_istatus, 158 aac_rx_set_mailbox, 159 aac_rx_get_mailbox, 160 aac_rx_set_interrupts 161}; 162 163/* Debugging and Diagnostics */ 164static void aac_describe_controller(struct aac_softc *sc); 165static char *aac_describe_code(struct aac_code_lookup *table, 166 u_int32_t code); 167 168/* Management Interface */ 169static d_open_t aac_open; 170static d_close_t aac_close; 171static d_ioctl_t aac_ioctl; 172static d_poll_t aac_poll; 173static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 174static void aac_handle_aif(struct aac_softc *sc, 175 struct aac_fib *fib); 176static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 177static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 178static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 179static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 180 181#define AAC_CDEV_MAJOR 150 182 183static struct cdevsw aac_cdevsw = { 184 .d_open = aac_open, 185 .d_close = aac_close, 186 .d_ioctl = aac_ioctl, 187 .d_poll = aac_poll, 188 .d_name = "aac", 189 .d_maj = AAC_CDEV_MAJOR, 190}; 191 192MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 193 194/* sysctl node */ 195SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 196 197/* 198 * Device Interface 199 */ 200 201/* 202 * Initialise the controller and softc 203 */ 204int 205aac_attach(struct aac_softc *sc) 206{ 207 int error, unit; 208 209 debug_called(1); 210 211 /* 212 * Initialise per-controller queues. 213 */ 214 aac_initq_free(sc); 215 aac_initq_ready(sc); 216 aac_initq_busy(sc); 217 aac_initq_bio(sc); 218 219 /* 220 * Initialise command-completion task. 221 */ 222 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 223 224 /* disable interrupts before we enable anything */ 225 AAC_MASK_INTERRUPTS(sc); 226 227 /* mark controller as suspended until we get ourselves organised */ 228 sc->aac_state |= AAC_STATE_SUSPEND; 229 230 /* 231 * Check that the firmware on the card is supported. 232 */ 233 if ((error = aac_check_firmware(sc)) != 0) 234 return(error); 235 236 /* 237 * Initialize locks 238 */ 239 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 240 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 241 AAC_LOCK_INIT(&sc->aac_io_lock, "AAC I/O lock"); 242 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 243 TAILQ_INIT(&sc->aac_container_tqh); 244 245 246 /* 247 * Initialise the adapter. 248 */ 249 if ((error = aac_init(sc)) != 0) 250 return(error); 251 252 /* 253 * Print a little information about the controller. 254 */ 255 aac_describe_controller(sc); 256 257 /* 258 * Register to probe our containers later. 259 */ 260 sc->aac_ich.ich_func = aac_startup; 261 sc->aac_ich.ich_arg = sc; 262 if (config_intrhook_establish(&sc->aac_ich) != 0) { 263 device_printf(sc->aac_dev, 264 "can't establish configuration hook\n"); 265 return(ENXIO); 266 } 267 268 /* 269 * Make the control device. 270 */ 271 unit = device_get_unit(sc->aac_dev); 272 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 273 0640, "aac%d", unit); 274 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 275 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 276 sc->aac_dev_t->si_drv1 = sc; 277 278 /* Create the AIF thread */ 279 if (kthread_create((void(*)(void *))aac_command_thread, sc, 280 &sc->aifthread, 0, 0, "aac%daif", unit)) 281 panic("Could not create AIF thread\n"); 282 283 /* Register the shutdown method to only be called post-dump */ 284 if ((sc->eh = EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, 285 sc->aac_dev, SHUTDOWN_PRI_DEFAULT)) == NULL) 286 device_printf(sc->aac_dev, 287 "shutdown event registration failed\n"); 288 289 /* Register with CAM for the non-DASD devices */ 290 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0) { 291 TAILQ_INIT(&sc->aac_sim_tqh); 292 aac_get_bus_info(sc); 293 } 294 295 return(0); 296} 297 298/* 299 * Probe for containers, create disks. 300 */ 301static void 302aac_startup(void *arg) 303{ 304 struct aac_softc *sc; 305 struct aac_fib *fib; 306 struct aac_mntinfo *mi; 307 struct aac_mntinforesp *mir = NULL; 308 int count = 0, i = 0; 309 310 debug_called(1); 311 312 sc = (struct aac_softc *)arg; 313 314 /* disconnect ourselves from the intrhook chain */ 315 config_intrhook_disestablish(&sc->aac_ich); 316 317 aac_alloc_sync_fib(sc, &fib, 0); 318 mi = (struct aac_mntinfo *)&fib->data[0]; 319 320 /* loop over possible containers */ 321 do { 322 /* request information on this container */ 323 bzero(mi, sizeof(struct aac_mntinfo)); 324 mi->Command = VM_NameServe; 325 mi->MntType = FT_FILESYS; 326 mi->MntCount = i; 327 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 328 sizeof(struct aac_mntinfo))) { 329 printf("error probing container %d", i); 330 continue; 331 } 332 333 mir = (struct aac_mntinforesp *)&fib->data[0]; 334 /* XXX Need to check if count changed */ 335 count = mir->MntRespCount; 336 aac_add_container(sc, mir, 0); 337 i++; 338 } while ((i < count) && (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. Use the command array index 715 * instead of a pointer since these fields are only 32 bits. Shift 716 * the SenderFibAddress over to make room for the fast response bit. 717 */ 718 cm->cm_fib->Header.SenderFibAddress = (cm->cm_index << 1); 719 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 720 721 /* save a pointer to the command for speedy reverse-lookup */ 722 cm->cm_fib->Header.SenderData = cm->cm_index; 723 /* put the FIB on the outbound queue */ 724 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 725 return(error); 726} 727 728/* 729 * Handle notification of one or more FIBs coming from the controller. 730 */ 731static void 732aac_command_thread(struct aac_softc *sc) 733{ 734 struct aac_fib *fib; 735 u_int32_t fib_size; 736 int size; 737 738 debug_called(2); 739 740 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 741 742 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 743 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 744 tsleep(sc->aifthread, PRIBIO, "aifthd", 745 AAC_PERIODIC_INTERVAL * hz); 746 747 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 748 aac_timeout(sc); 749 750 /* Check the hardware printf message buffer */ 751 if ((sc->aifflags & AAC_AIFFLAGS_PRINTF) != 0) { 752 sc->aifflags &= ~AAC_AIFFLAGS_PRINTF; 753 aac_print_printf(sc); 754 } 755 756 /* See if any FIBs need to be allocated */ 757 if ((sc->aifflags & AAC_AIFFLAGS_ALLOCFIBS) != 0) { 758 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 759 aac_alloc_commands(sc); 760 sc->aifflags &= ~AAC_AIFFLAGS_ALLOCFIBS; 761 AAC_LOCK_RELEASE(&sc->aac_io_lock); 762 } 763 764 /* While we're here, check to see if any commands are stuck */ 765 while (sc->aifflags & AAC_AIFFLAGS_AIF) { 766 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 767 &fib_size, &fib)) { 768 sc->aifflags &= ~AAC_AIFFLAGS_AIF; 769 break; /* nothing to do */ 770 } 771 772 AAC_PRINT_FIB(sc, fib); 773 774 switch (fib->Header.Command) { 775 case AifRequest: 776 aac_handle_aif(sc, fib); 777 break; 778 default: 779 device_printf(sc->aac_dev, "unknown command " 780 "from controller\n"); 781 break; 782 } 783 784 if ((fib->Header.XferState == 0) || 785 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 786 break; 787 788 /* Return the AIF to the controller. */ 789 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 790 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 791 *(AAC_FSAStatus*)fib->data = ST_OK; 792 793 /* XXX Compute the Size field? */ 794 size = fib->Header.Size; 795 if (size > sizeof(struct aac_fib)) { 796 size = sizeof(struct aac_fib); 797 fib->Header.Size = size; 798 } 799 /* 800 * Since we did not generate this command, it 801 * cannot go through the normal 802 * enqueue->startio chain. 803 */ 804 aac_enqueue_response(sc, 805 AAC_ADAP_NORM_RESP_QUEUE, 806 fib); 807 } 808 } 809 } 810 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 811 wakeup(sc->aac_dev); 812 813 mtx_lock(&Giant); 814 kthread_exit(0); 815} 816 817/* 818 * Process completed commands. 819 */ 820static void 821aac_complete(void *context, int pending) 822{ 823 struct aac_softc *sc; 824 struct aac_command *cm; 825 struct aac_fib *fib; 826 u_int32_t fib_size; 827 828 debug_called(2); 829 830 sc = (struct aac_softc *)context; 831 832 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 833 834 /* pull completed commands off the queue */ 835 for (;;) { 836 /* look for completed FIBs on our queue */ 837 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 838 &fib)) 839 break; /* nothing to do */ 840 841 /* get the command, unmap and queue for later processing */ 842 cm = sc->aac_commands + fib->Header.SenderData; 843 if (cm == NULL) { 844 AAC_PRINT_FIB(sc, fib); 845 break; 846 } 847 848 aac_remove_busy(cm); 849 aac_unmap_command(cm); /* XXX defer? */ 850 cm->cm_flags |= AAC_CMD_COMPLETED; 851 852 /* is there a completion handler? */ 853 if (cm->cm_complete != NULL) { 854 cm->cm_complete(cm); 855 } else { 856 /* assume that someone is sleeping on this command */ 857 wakeup(cm); 858 } 859 } 860 861 /* see if we can start some more I/O */ 862 aac_startio(sc); 863 864 AAC_LOCK_RELEASE(&sc->aac_io_lock); 865} 866 867/* 868 * Handle a bio submitted from a disk device. 869 */ 870void 871aac_submit_bio(struct bio *bp) 872{ 873 struct aac_disk *ad; 874 struct aac_softc *sc; 875 876 debug_called(2); 877 878 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 879 sc = ad->ad_controller; 880 881 /* queue the BIO and try to get some work done */ 882 aac_enqueue_bio(sc, bp); 883 aac_startio(sc); 884} 885 886/* 887 * Get a bio and build a command to go with it. 888 */ 889static int 890aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 891{ 892 struct aac_command *cm; 893 struct aac_fib *fib; 894 struct aac_disk *ad; 895 struct bio *bp; 896 897 debug_called(2); 898 899 /* get the resources we will need */ 900 cm = NULL; 901 if ((bp = aac_dequeue_bio(sc)) == NULL) 902 goto fail; 903 if (aac_alloc_command(sc, &cm)) /* get a command */ 904 goto fail; 905 906 /* fill out the command */ 907 cm->cm_data = (void *)bp->bio_data; 908 cm->cm_datalen = bp->bio_bcount; 909 cm->cm_complete = aac_bio_complete; 910 cm->cm_private = bp; 911 cm->cm_timestamp = time_second; 912 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 913 914 /* build the FIB */ 915 fib = cm->cm_fib; 916 fib->Header.Size = sizeof(struct aac_fib_header); 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; 926 927 /* build the read/write request */ 928 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 929 930 if ((sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 931 fib->Header.Command = ContainerCommand; 932 if (bp->bio_cmd == BIO_READ) { 933 struct aac_blockread *br; 934 br = (struct aac_blockread *)&fib->data[0]; 935 br->Command = VM_CtBlockRead; 936 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 937 br->BlockNumber = bp->bio_pblkno; 938 br->ByteCount = bp->bio_bcount; 939 fib->Header.Size += sizeof(struct aac_blockread); 940 cm->cm_sgtable = &br->SgMap; 941 cm->cm_flags |= AAC_CMD_DATAIN; 942 } else { 943 struct aac_blockwrite *bw; 944 bw = (struct aac_blockwrite *)&fib->data[0]; 945 bw->Command = VM_CtBlockWrite; 946 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 947 bw->BlockNumber = bp->bio_pblkno; 948 bw->ByteCount = bp->bio_bcount; 949 bw->Stable = CUNSTABLE; 950 fib->Header.Size += sizeof(struct aac_blockwrite); 951 cm->cm_flags |= AAC_CMD_DATAOUT; 952 cm->cm_sgtable = &bw->SgMap; 953 } 954 } else { 955 fib->Header.Command = ContainerCommand64; 956 if (bp->bio_cmd == BIO_READ) { 957 struct aac_blockread64 *br; 958 br = (struct aac_blockread64 *)&fib->data[0]; 959 br->Command = VM_CtHostRead64; 960 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 961 br->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 962 br->BlockNumber = bp->bio_pblkno; 963 br->Pad = 0; 964 br->Flags = 0; 965 fib->Header.Size += sizeof(struct aac_blockread64); 966 cm->cm_flags |= AAC_CMD_DATAOUT; 967 (struct aac_sg_table64 *)cm->cm_sgtable = &br->SgMap64; 968 } else { 969 struct aac_blockwrite64 *bw; 970 bw = (struct aac_blockwrite64 *)&fib->data[0]; 971 bw->Command = VM_CtHostWrite64; 972 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 973 bw->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 974 bw->BlockNumber = bp->bio_pblkno; 975 bw->Pad = 0; 976 bw->Flags = 0; 977 fib->Header.Size += sizeof(struct aac_blockwrite64); 978 cm->cm_flags |= AAC_CMD_DATAIN; 979 (struct aac_sg_table64 *)cm->cm_sgtable = &bw->SgMap64; 980 } 981 } 982 983 *cmp = cm; 984 return(0); 985 986fail: 987 if (bp != NULL) 988 aac_enqueue_bio(sc, bp); 989 if (cm != NULL) 990 aac_release_command(cm); 991 return(ENOMEM); 992} 993 994/* 995 * Handle a bio-instigated command that has been completed. 996 */ 997static void 998aac_bio_complete(struct aac_command *cm) 999{ 1000 struct aac_blockread_response *brr; 1001 struct aac_blockwrite_response *bwr; 1002 struct bio *bp; 1003 AAC_FSAStatus status; 1004 1005 /* fetch relevant status and then release the command */ 1006 bp = (struct bio *)cm->cm_private; 1007 if (bp->bio_cmd == BIO_READ) { 1008 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 1009 status = brr->Status; 1010 } else { 1011 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 1012 status = bwr->Status; 1013 } 1014 aac_release_command(cm); 1015 1016 /* fix up the bio based on status */ 1017 if (status == ST_OK) { 1018 bp->bio_resid = 0; 1019 } else { 1020 bp->bio_error = EIO; 1021 bp->bio_flags |= BIO_ERROR; 1022 /* pass an error string out to the disk layer */ 1023 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1024 status); 1025 } 1026 aac_biodone(bp); 1027} 1028 1029/* 1030 * Submit a command to the controller, return when it completes. 1031 * XXX This is very dangerous! If the card has gone out to lunch, we could 1032 * be stuck here forever. At the same time, signals are not caught 1033 * because there is a risk that a signal could wakeup the tsleep before 1034 * the card has a chance to complete the command. The passed in timeout 1035 * is ignored for the same reason. Since there is no way to cancel a 1036 * command in progress, we should probably create a 'dead' queue where 1037 * commands go that have been interrupted/timed-out/etc, that keeps them 1038 * out of the free pool. That way, if the card is just slow, it won't 1039 * spam the memory of a command that has been recycled. 1040 */ 1041static int 1042aac_wait_command(struct aac_command *cm, int timeout) 1043{ 1044 struct aac_softc *sc; 1045 int error = 0; 1046 1047 debug_called(2); 1048 1049 sc = cm->cm_sc; 1050 1051 /* Put the command on the ready queue and get things going */ 1052 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1053 aac_enqueue_ready(cm); 1054 aac_startio(sc); 1055 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1056 error = msleep(cm, &sc->aac_io_lock, PRIBIO, "aacwait", 0); 1057 } 1058 return(error); 1059} 1060 1061/* 1062 *Command Buffer Management 1063 */ 1064 1065/* 1066 * Allocate a command. 1067 */ 1068int 1069aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1070{ 1071 struct aac_command *cm; 1072 1073 debug_called(3); 1074 1075 if ((cm = aac_dequeue_free(sc)) == NULL) { 1076 if (sc->total_fibs < sc->aac_max_fibs) { 1077 sc->aifflags |= AAC_AIFFLAGS_ALLOCFIBS; 1078 wakeup(sc->aifthread); 1079 } 1080 return (EBUSY); 1081 } 1082 1083 *cmp = cm; 1084 return(0); 1085} 1086 1087/* 1088 * Release a command back to the freelist. 1089 */ 1090void 1091aac_release_command(struct aac_command *cm) 1092{ 1093 debug_called(3); 1094 1095 /* (re)initialise the command/FIB */ 1096 cm->cm_sgtable = NULL; 1097 cm->cm_flags = 0; 1098 cm->cm_complete = NULL; 1099 cm->cm_private = NULL; 1100 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1101 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1102 cm->cm_fib->Header.Flags = 0; 1103 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1104 1105 /* 1106 * These are duplicated in aac_start to cover the case where an 1107 * intermediate stage may have destroyed them. They're left 1108 * initialised here for debugging purposes only. 1109 */ 1110 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 1111 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1112 cm->cm_fib->Header.SenderData = 0; 1113 1114 aac_enqueue_free(cm); 1115} 1116 1117/* 1118 * Map helper for command/FIB allocation. 1119 */ 1120static void 1121aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1122{ 1123 uint32_t *fibphys; 1124 1125 fibphys = (uint32_t *)arg; 1126 1127 debug_called(3); 1128 1129 *fibphys = segs[0].ds_addr; 1130} 1131 1132/* 1133 * Allocate and initialise commands/FIBs for this adapter. 1134 */ 1135static int 1136aac_alloc_commands(struct aac_softc *sc) 1137{ 1138 struct aac_command *cm; 1139 struct aac_fibmap *fm; 1140 uint32_t fibphys; 1141 int i, error; 1142 1143 debug_called(2); 1144 1145 if (sc->total_fibs + AAC_FIB_COUNT > sc->aac_max_fibs) 1146 return (ENOMEM); 1147 1148 fm = malloc(sizeof(struct aac_fibmap), M_AACBUF, M_NOWAIT|M_ZERO); 1149 if (fm == NULL) 1150 return (ENOMEM); 1151 1152 /* allocate the FIBs in DMAable memory and load them */ 1153 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs, 1154 BUS_DMA_NOWAIT, &fm->aac_fibmap)) { 1155 device_printf(sc->aac_dev, 1156 "Not enough contiguous memory available.\n"); 1157 free(fm, M_AACBUF); 1158 return (ENOMEM); 1159 } 1160 1161 bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs, 1162 AAC_FIB_COUNT * sizeof(struct aac_fib), 1163 aac_map_command_helper, &fibphys, 0); 1164 1165 /* initialise constant fields in the command structure */ 1166 bzero(fm->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1167 for (i = 0; i < AAC_FIB_COUNT; i++) { 1168 cm = sc->aac_commands + sc->total_fibs; 1169 fm->aac_commands = cm; 1170 cm->cm_sc = sc; 1171 cm->cm_fib = fm->aac_fibs + i; 1172 cm->cm_fibphys = fibphys + (i * sizeof(struct aac_fib)); 1173 cm->cm_index = sc->total_fibs; 1174 1175 if ((error = bus_dmamap_create(sc->aac_buffer_dmat, 0, 1176 &cm->cm_datamap)) == 0) 1177 aac_release_command(cm); 1178 else 1179 break; 1180 sc->total_fibs++; 1181 } 1182 1183 if (i > 0) { 1184 TAILQ_INSERT_TAIL(&sc->aac_fibmap_tqh, fm, fm_link); 1185 debug(1, "total_fibs= %d\n", sc->total_fibs); 1186 return (0); 1187 } 1188 1189 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1190 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1191 free(fm, M_AACBUF); 1192 return (ENOMEM); 1193} 1194 1195/* 1196 * Free FIBs owned by this adapter. 1197 */ 1198static void 1199aac_free_commands(struct aac_softc *sc) 1200{ 1201 struct aac_fibmap *fm; 1202 struct aac_command *cm; 1203 int i; 1204 1205 debug_called(1); 1206 1207 while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) { 1208 1209 TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link); 1210 /* 1211 * We check against total_fibs to handle partially 1212 * allocated blocks. 1213 */ 1214 for (i = 0; i < AAC_FIB_COUNT && sc->total_fibs--; i++) { 1215 cm = fm->aac_commands + i; 1216 bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap); 1217 } 1218 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1219 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1220 free(fm, M_AACBUF); 1221 } 1222} 1223 1224/* 1225 * Command-mapping helper function - populate this command's s/g table. 1226 */ 1227static void 1228aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1229{ 1230 struct aac_command *cm; 1231 struct aac_fib *fib; 1232 int i; 1233 1234 debug_called(3); 1235 1236 cm = (struct aac_command *)arg; 1237 fib = cm->cm_fib; 1238 1239 /* copy into the FIB */ 1240 if (cm->cm_sgtable != NULL) { 1241 if ((cm->cm_sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 1242 struct aac_sg_table *sg; 1243 sg = cm->cm_sgtable; 1244 sg->SgCount = nseg; 1245 for (i = 0; i < nseg; i++) { 1246 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1247 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1248 } 1249 /* update the FIB size for the s/g count */ 1250 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1251 } else { 1252 struct aac_sg_table64 *sg; 1253 sg = (struct aac_sg_table64 *)cm->cm_sgtable; 1254 sg->SgCount = nseg; 1255 for (i = 0; i < nseg; i++) { 1256 sg->SgEntry64[i].SgAddress = segs[i].ds_addr; 1257 sg->SgEntry64[i].SgByteCount = segs[i].ds_len; 1258 } 1259 /* update the FIB size for the s/g count */ 1260 fib->Header.Size += nseg*sizeof(struct aac_sg_entry64); 1261 } 1262 } 1263} 1264 1265/* 1266 * Map a command into controller-visible space. 1267 */ 1268static void 1269aac_map_command(struct aac_command *cm) 1270{ 1271 struct aac_softc *sc; 1272 1273 debug_called(2); 1274 1275 sc = cm->cm_sc; 1276 1277 /* don't map more than once */ 1278 if (cm->cm_flags & AAC_CMD_MAPPED) 1279 return; 1280 1281 if (cm->cm_datalen != 0) { 1282 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 1283 cm->cm_data, cm->cm_datalen, 1284 aac_map_command_sg, cm, 0); 1285 1286 if (cm->cm_flags & AAC_CMD_DATAIN) 1287 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1288 BUS_DMASYNC_PREREAD); 1289 if (cm->cm_flags & AAC_CMD_DATAOUT) 1290 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1291 BUS_DMASYNC_PREWRITE); 1292 } 1293 cm->cm_flags |= AAC_CMD_MAPPED; 1294} 1295 1296/* 1297 * Unmap a command from controller-visible space. 1298 */ 1299static void 1300aac_unmap_command(struct aac_command *cm) 1301{ 1302 struct aac_softc *sc; 1303 1304 debug_called(2); 1305 1306 sc = cm->cm_sc; 1307 1308 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1309 return; 1310 1311 if (cm->cm_datalen != 0) { 1312 if (cm->cm_flags & AAC_CMD_DATAIN) 1313 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1314 BUS_DMASYNC_POSTREAD); 1315 if (cm->cm_flags & AAC_CMD_DATAOUT) 1316 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1317 BUS_DMASYNC_POSTWRITE); 1318 1319 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1320 } 1321 cm->cm_flags &= ~AAC_CMD_MAPPED; 1322} 1323 1324/* 1325 * Hardware Interface 1326 */ 1327 1328/* 1329 * Initialise the adapter. 1330 */ 1331static void 1332aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1333{ 1334 struct aac_softc *sc; 1335 1336 debug_called(1); 1337 1338 sc = (struct aac_softc *)arg; 1339 1340 sc->aac_common_busaddr = segs[0].ds_addr; 1341} 1342 1343static int 1344aac_check_firmware(struct aac_softc *sc) 1345{ 1346 u_int32_t major, minor, options; 1347 1348 debug_called(1); 1349 1350 /* 1351 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1352 * firmware version 1.x are not compatible with this driver. 1353 */ 1354 if (sc->flags & AAC_FLAGS_PERC2QC) { 1355 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1356 NULL)) { 1357 device_printf(sc->aac_dev, 1358 "Error reading firmware version\n"); 1359 return (EIO); 1360 } 1361 1362 /* These numbers are stored as ASCII! */ 1363 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30; 1364 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30; 1365 if (major == 1) { 1366 device_printf(sc->aac_dev, 1367 "Firmware version %d.%d is not supported.\n", 1368 major, minor); 1369 return (EINVAL); 1370 } 1371 } 1372 1373 /* 1374 * Retrieve the capabilities/supported options word so we know what 1375 * work-arounds to enable. 1376 */ 1377 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) { 1378 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 1379 return (EIO); 1380 } 1381 options = AAC_GET_MAILBOX(sc, 1); 1382 sc->supported_options = options; 1383 1384 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 && 1385 (sc->flags & AAC_FLAGS_NO4GB) == 0) 1386 sc->flags |= AAC_FLAGS_4GB_WINDOW; 1387 if (options & AAC_SUPPORTED_NONDASD) 1388 sc->flags |= AAC_FLAGS_ENABLE_CAM; 1389 if ((options & AAC_SUPPORTED_SGMAP_HOST64) != 0 && (sizeof(bus_addr_t) > 4)) { 1390 device_printf(sc->aac_dev, "Enabling 64-bit address support\n"); 1391 sc->flags |= AAC_FLAGS_SG_64BIT; 1392 } 1393 1394 /* Check for broken hardware that does a lower number of commands */ 1395 if ((sc->flags & AAC_FLAGS_256FIBS) == 0) 1396 sc->aac_max_fibs = AAC_MAX_FIBS; 1397 else 1398 sc->aac_max_fibs = 256; 1399 1400 return (0); 1401} 1402 1403static int 1404aac_init(struct aac_softc *sc) 1405{ 1406 struct aac_adapter_init *ip; 1407 time_t then; 1408 u_int32_t code; 1409 u_int8_t *qaddr; 1410 int error; 1411 1412 debug_called(1); 1413 1414 /* 1415 * First wait for the adapter to come ready. 1416 */ 1417 then = time_second; 1418 do { 1419 code = AAC_GET_FWSTATUS(sc); 1420 if (code & AAC_SELF_TEST_FAILED) { 1421 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1422 return(ENXIO); 1423 } 1424 if (code & AAC_KERNEL_PANIC) { 1425 device_printf(sc->aac_dev, 1426 "FATAL: controller kernel panic\n"); 1427 return(ENXIO); 1428 } 1429 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1430 device_printf(sc->aac_dev, 1431 "FATAL: controller not coming ready, " 1432 "status %x\n", code); 1433 return(ENXIO); 1434 } 1435 } while (!(code & AAC_UP_AND_RUNNING)); 1436 1437 error = ENOMEM; 1438 /* 1439 * Create DMA tag for mapping buffers into controller-addressable space. 1440 */ 1441 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1442 1, 0, /* algnmnt, boundary */ 1443 (sc->flags & AAC_FLAGS_SG_64BIT) ? 1444 BUS_SPACE_MAXADDR : 1445 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1446 BUS_SPACE_MAXADDR, /* highaddr */ 1447 NULL, NULL, /* filter, filterarg */ 1448 MAXBSIZE, /* maxsize */ 1449 AAC_MAXSGENTRIES, /* nsegments */ 1450 MAXBSIZE, /* maxsegsize */ 1451 BUS_DMA_ALLOCNOW, /* flags */ 1452 busdma_lock_mutex, /* lockfunc */ 1453 &sc->aac_io_lock, /* lockfuncarg */ 1454 &sc->aac_buffer_dmat)) { 1455 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 1456 goto out; 1457 } 1458 1459 /* 1460 * Create DMA tag for mapping FIBs into controller-addressable space.. 1461 */ 1462 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1463 1, 0, /* algnmnt, boundary */ 1464 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1465 BUS_SPACE_MAXADDR_32BIT : 1466 0x7fffffff, /* lowaddr */ 1467 BUS_SPACE_MAXADDR, /* highaddr */ 1468 NULL, NULL, /* filter, filterarg */ 1469 AAC_FIB_COUNT * 1470 sizeof(struct aac_fib), /* maxsize */ 1471 1, /* nsegments */ 1472 AAC_FIB_COUNT * 1473 sizeof(struct aac_fib), /* maxsegsize */ 1474 BUS_DMA_ALLOCNOW, /* flags */ 1475 NULL, NULL, /* No locking needed */ 1476 &sc->aac_fib_dmat)) { 1477 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");; 1478 goto out; 1479 } 1480 1481 /* 1482 * Create DMA tag for the common structure and allocate it. 1483 */ 1484 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1485 1, 0, /* algnmnt, boundary */ 1486 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1487 BUS_SPACE_MAXADDR_32BIT : 1488 0x7fffffff, /* lowaddr */ 1489 BUS_SPACE_MAXADDR, /* highaddr */ 1490 NULL, NULL, /* filter, filterarg */ 1491 8192 + sizeof(struct aac_common), /* maxsize */ 1492 1, /* nsegments */ 1493 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1494 BUS_DMA_ALLOCNOW, /* flags */ 1495 NULL, NULL, /* No locking needed */ 1496 &sc->aac_common_dmat)) { 1497 device_printf(sc->aac_dev, 1498 "can't allocate common structure DMA tag\n"); 1499 goto out; 1500 } 1501 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1502 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1503 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1504 goto out; 1505 } 1506 1507 /* 1508 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1509 * below address 8192 in physical memory. 1510 * XXX If the padding is not needed, can it be put to use instead 1511 * of ignored? 1512 */ 1513 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1514 sc->aac_common, 8192 + sizeof(*sc->aac_common), 1515 aac_common_map, sc, 0); 1516 1517 if (sc->aac_common_busaddr < 8192) { 1518 (uint8_t *)sc->aac_common += 8192; 1519 sc->aac_common_busaddr += 8192; 1520 } 1521 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1522 1523 /* Allocate some FIBs and associated command structs */ 1524 TAILQ_INIT(&sc->aac_fibmap_tqh); 1525 sc->aac_commands = malloc(AAC_MAX_FIBS * sizeof(struct aac_command), 1526 M_AACBUF, M_WAITOK|M_ZERO); 1527 while (sc->total_fibs < AAC_PREALLOCATE_FIBS) { 1528 if (aac_alloc_commands(sc) != 0) 1529 break; 1530 } 1531 if (sc->total_fibs == 0) 1532 goto out; 1533 1534 /* 1535 * Fill in the init structure. This tells the adapter about the 1536 * physical location of various important shared data structures. 1537 */ 1538 ip = &sc->aac_common->ac_init; 1539 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1540 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1541 1542 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1543 offsetof(struct aac_common, ac_fibs); 1544 ip->AdapterFibsVirtualAddress = 0; 1545 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1546 ip->AdapterFibAlign = sizeof(struct aac_fib); 1547 1548 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1549 offsetof(struct aac_common, ac_printf); 1550 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1551 1552 /* 1553 * The adapter assumes that pages are 4K in size, except on some 1554 * broken firmware versions that do the page->byte conversion twice, 1555 * therefore 'assuming' that this value is in 16MB units (2^24). 1556 * Round up since the granularity is so high. 1557 */ 1558 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1559 if (sc->flags & AAC_FLAGS_BROKEN_MEMMAP) { 1560 ip->HostPhysMemPages = 1561 (ip->HostPhysMemPages + AAC_PAGE_SIZE) / AAC_PAGE_SIZE; 1562 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1563 1564 /* 1565 * Initialise FIB queues. Note that it appears that the layout of the 1566 * indexes and the segmentation of the entries may be mandated by the 1567 * adapter, which is only told about the base of the queue index fields. 1568 * 1569 * The initial values of the indices are assumed to inform the adapter 1570 * of the sizes of the respective queues, and theoretically it could 1571 * work out the entire layout of the queue structures from this. We 1572 * take the easy route and just lay this area out like everyone else 1573 * does. 1574 * 1575 * The Linux driver uses a much more complex scheme whereby several 1576 * header records are kept for each queue. We use a couple of generic 1577 * list manipulation functions which 'know' the size of each list by 1578 * virtue of a table. 1579 */ 1580 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1581 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1582 sc->aac_queues = (struct aac_queue_table *)qaddr; 1583 ip->CommHeaderAddress = sc->aac_common_busaddr + 1584 ((u_int32_t)sc->aac_queues - 1585 (u_int32_t)sc->aac_common); 1586 1587 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1588 AAC_HOST_NORM_CMD_ENTRIES; 1589 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1590 AAC_HOST_NORM_CMD_ENTRIES; 1591 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1592 AAC_HOST_HIGH_CMD_ENTRIES; 1593 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1594 AAC_HOST_HIGH_CMD_ENTRIES; 1595 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1596 AAC_ADAP_NORM_CMD_ENTRIES; 1597 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1598 AAC_ADAP_NORM_CMD_ENTRIES; 1599 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1600 AAC_ADAP_HIGH_CMD_ENTRIES; 1601 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1602 AAC_ADAP_HIGH_CMD_ENTRIES; 1603 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1604 AAC_HOST_NORM_RESP_ENTRIES; 1605 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1606 AAC_HOST_NORM_RESP_ENTRIES; 1607 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1608 AAC_HOST_HIGH_RESP_ENTRIES; 1609 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1610 AAC_HOST_HIGH_RESP_ENTRIES; 1611 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1612 AAC_ADAP_NORM_RESP_ENTRIES; 1613 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1614 AAC_ADAP_NORM_RESP_ENTRIES; 1615 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1616 AAC_ADAP_HIGH_RESP_ENTRIES; 1617 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1618 AAC_ADAP_HIGH_RESP_ENTRIES; 1619 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1620 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1621 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1622 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1623 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1624 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1625 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1626 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1627 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1628 &sc->aac_queues->qt_HostNormRespQueue[0]; 1629 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1630 &sc->aac_queues->qt_HostHighRespQueue[0]; 1631 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1632 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1633 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1634 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1635 1636 /* 1637 * Do controller-type-specific initialisation 1638 */ 1639 switch (sc->aac_hwif) { 1640 case AAC_HWIF_I960RX: 1641 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1642 break; 1643 } 1644 1645 /* 1646 * Give the init structure to the controller. 1647 */ 1648 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1649 sc->aac_common_busaddr + 1650 offsetof(struct aac_common, ac_init), 0, 0, 0, 1651 NULL)) { 1652 device_printf(sc->aac_dev, 1653 "error establishing init structure\n"); 1654 error = EIO; 1655 goto out; 1656 } 1657 1658 error = 0; 1659out: 1660 return(error); 1661} 1662 1663/* 1664 * Send a synchronous command to the controller and wait for a result. 1665 */ 1666static int 1667aac_sync_command(struct aac_softc *sc, u_int32_t command, 1668 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1669 u_int32_t *sp) 1670{ 1671 time_t then; 1672 u_int32_t status; 1673 1674 debug_called(3); 1675 1676 /* populate the mailbox */ 1677 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1678 1679 /* ensure the sync command doorbell flag is cleared */ 1680 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1681 1682 /* then set it to signal the adapter */ 1683 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1684 1685 /* spin waiting for the command to complete */ 1686 then = time_second; 1687 do { 1688 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1689 debug(1, "timed out"); 1690 return(EIO); 1691 } 1692 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1693 1694 /* clear the completion flag */ 1695 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1696 1697 /* get the command status */ 1698 status = AAC_GET_MAILBOX(sc, 0); 1699 if (sp != NULL) 1700 *sp = status; 1701 return(0); 1702} 1703 1704/* 1705 * Grab the sync fib area. 1706 */ 1707int 1708aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1709{ 1710 1711 /* 1712 * If the force flag is set, the system is shutting down, or in 1713 * trouble. Ignore the mutex. 1714 */ 1715 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1716 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1717 1718 *fib = &sc->aac_common->ac_sync_fib; 1719 1720 return (1); 1721} 1722 1723/* 1724 * Release the sync fib area. 1725 */ 1726void 1727aac_release_sync_fib(struct aac_softc *sc) 1728{ 1729 1730 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1731} 1732 1733/* 1734 * Send a synchronous FIB to the controller and wait for a result. 1735 */ 1736int 1737aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1738 struct aac_fib *fib, u_int16_t datasize) 1739{ 1740 debug_called(3); 1741 1742 if (datasize > AAC_FIB_DATASIZE) 1743 return(EINVAL); 1744 1745 /* 1746 * Set up the sync FIB 1747 */ 1748 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1749 AAC_FIBSTATE_INITIALISED | 1750 AAC_FIBSTATE_EMPTY; 1751 fib->Header.XferState |= xferstate; 1752 fib->Header.Command = command; 1753 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1754 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1755 fib->Header.SenderSize = sizeof(struct aac_fib); 1756 fib->Header.SenderFibAddress = (u_int32_t)fib; 1757 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1758 offsetof(struct aac_common, 1759 ac_sync_fib); 1760 1761 /* 1762 * Give the FIB to the controller, wait for a response. 1763 */ 1764 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1765 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1766 debug(2, "IO error"); 1767 return(EIO); 1768 } 1769 1770 return (0); 1771} 1772 1773/* 1774 * Adapter-space FIB queue manipulation 1775 * 1776 * Note that the queue implementation here is a little funky; neither the PI or 1777 * CI will ever be zero. This behaviour is a controller feature. 1778 */ 1779static struct { 1780 int size; 1781 int notify; 1782} aac_qinfo[] = { 1783 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1784 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1785 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1786 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1787 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1788 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1789 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1790 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1791}; 1792 1793/* 1794 * Atomically insert an entry into the nominated queue, returns 0 on success or 1795 * EBUSY if the queue is full. 1796 * 1797 * Note: it would be more efficient to defer notifying the controller in 1798 * the case where we may be inserting several entries in rapid succession, 1799 * but implementing this usefully may be difficult (it would involve a 1800 * separate queue/notify interface). 1801 */ 1802static int 1803aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1804{ 1805 u_int32_t pi, ci; 1806 int error; 1807 u_int32_t fib_size; 1808 u_int32_t fib_addr; 1809 1810 debug_called(3); 1811 1812 fib_size = cm->cm_fib->Header.Size; 1813 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1814 1815 /* get the producer/consumer indices */ 1816 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1817 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1818 1819 /* wrap the queue? */ 1820 if (pi >= aac_qinfo[queue].size) 1821 pi = 0; 1822 1823 /* check for queue full */ 1824 if ((pi + 1) == ci) { 1825 error = EBUSY; 1826 goto out; 1827 } 1828 1829 /* populate queue entry */ 1830 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1831 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1832 1833 /* update producer index */ 1834 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1835 1836 /* 1837 * To avoid a race with its completion interrupt, place this command on 1838 * the busy queue prior to advertising it to the controller. 1839 */ 1840 aac_enqueue_busy(cm); 1841 1842 /* notify the adapter if we know how */ 1843 if (aac_qinfo[queue].notify != 0) 1844 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1845 1846 error = 0; 1847 1848out: 1849 return(error); 1850} 1851 1852/* 1853 * Atomically remove one entry from the nominated queue, returns 0 on 1854 * success or ENOENT if the queue is empty. 1855 */ 1856static int 1857aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1858 struct aac_fib **fib_addr) 1859{ 1860 u_int32_t pi, ci; 1861 u_int32_t fib_index; 1862 int error; 1863 int notify; 1864 1865 debug_called(3); 1866 1867 /* get the producer/consumer indices */ 1868 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1869 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1870 1871 /* check for queue empty */ 1872 if (ci == pi) { 1873 error = ENOENT; 1874 goto out; 1875 } 1876 1877 notify = 0; 1878 if (ci == pi + 1) 1879 notify++; 1880 1881 /* wrap the queue? */ 1882 if (ci >= aac_qinfo[queue].size) 1883 ci = 0; 1884 1885 /* fetch the entry */ 1886 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1887 1888 switch (queue) { 1889 case AAC_HOST_NORM_CMD_QUEUE: 1890 case AAC_HOST_HIGH_CMD_QUEUE: 1891 /* 1892 * The aq_fib_addr is only 32 bits wide so it can't be counted 1893 * on to hold an address. For AIF's, the adapter assumes 1894 * that it's giving us an address into the array of AIF fibs. 1895 * Therefore, we have to convert it to an index. 1896 */ 1897 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr / 1898 sizeof(struct aac_fib); 1899 *fib_addr = &sc->aac_common->ac_fibs[fib_index]; 1900 break; 1901 1902 case AAC_HOST_NORM_RESP_QUEUE: 1903 case AAC_HOST_HIGH_RESP_QUEUE: 1904 { 1905 struct aac_command *cm; 1906 1907 /* 1908 * As above, an index is used instead of an actual address. 1909 * Gotta shift the index to account for the fast response 1910 * bit. No other correction is needed since this value was 1911 * originally provided by the driver via the SenderFibAddress 1912 * field. 1913 */ 1914 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr; 1915 cm = sc->aac_commands + (fib_index >> 1); 1916 *fib_addr = cm->cm_fib; 1917 1918 /* 1919 * Is this a fast response? If it is, update the fib fields in 1920 * local memory since the whole fib isn't DMA'd back up. 1921 */ 1922 if (fib_index & 0x01) { 1923 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1924 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1925 } 1926 break; 1927 } 1928 default: 1929 panic("Invalid queue in aac_dequeue_fib()"); 1930 break; 1931 } 1932 1933 /* update consumer index */ 1934 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1935 1936 /* if we have made the queue un-full, notify the adapter */ 1937 if (notify && (aac_qinfo[queue].notify != 0)) 1938 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1939 error = 0; 1940 1941out: 1942 return(error); 1943} 1944 1945/* 1946 * Put our response to an Adapter Initialed Fib on the response queue 1947 */ 1948static int 1949aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1950{ 1951 u_int32_t pi, ci; 1952 int error; 1953 u_int32_t fib_size; 1954 u_int32_t fib_addr; 1955 1956 debug_called(1); 1957 1958 /* Tell the adapter where the FIB is */ 1959 fib_size = fib->Header.Size; 1960 fib_addr = fib->Header.SenderFibAddress; 1961 fib->Header.ReceiverFibAddress = fib_addr; 1962 1963 /* get the producer/consumer indices */ 1964 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1965 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1966 1967 /* wrap the queue? */ 1968 if (pi >= aac_qinfo[queue].size) 1969 pi = 0; 1970 1971 /* check for queue full */ 1972 if ((pi + 1) == ci) { 1973 error = EBUSY; 1974 goto out; 1975 } 1976 1977 /* populate queue entry */ 1978 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1979 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1980 1981 /* update producer index */ 1982 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1983 1984 /* notify the adapter if we know how */ 1985 if (aac_qinfo[queue].notify != 0) 1986 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1987 1988 error = 0; 1989 1990out: 1991 return(error); 1992} 1993 1994/* 1995 * Check for commands that have been outstanding for a suspiciously long time, 1996 * and complain about them. 1997 */ 1998static void 1999aac_timeout(struct aac_softc *sc) 2000{ 2001 struct aac_command *cm; 2002 time_t deadline; 2003 2004 /* 2005 * Traverse the busy command list, bitch about late commands once 2006 * only. 2007 */ 2008 deadline = time_second - AAC_CMD_TIMEOUT; 2009 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 2010 if ((cm->cm_timestamp < deadline) 2011 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 2012 cm->cm_flags |= AAC_CMD_TIMEDOUT; 2013 device_printf(sc->aac_dev, 2014 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 2015 cm, (int)(time_second-cm->cm_timestamp)); 2016 AAC_PRINT_FIB(sc, cm->cm_fib); 2017 } 2018 } 2019 2020 return; 2021} 2022 2023/* 2024 * Interface Function Vectors 2025 */ 2026 2027/* 2028 * Read the current firmware status word. 2029 */ 2030static int 2031aac_sa_get_fwstatus(struct aac_softc *sc) 2032{ 2033 debug_called(3); 2034 2035 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 2036} 2037 2038static int 2039aac_rx_get_fwstatus(struct aac_softc *sc) 2040{ 2041 debug_called(3); 2042 2043 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2044} 2045 2046static int 2047aac_fa_get_fwstatus(struct aac_softc *sc) 2048{ 2049 int val; 2050 2051 debug_called(3); 2052 2053 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2054 return (val); 2055} 2056 2057/* 2058 * Notify the controller of a change in a given queue 2059 */ 2060 2061static void 2062aac_sa_qnotify(struct aac_softc *sc, int qbit) 2063{ 2064 debug_called(3); 2065 2066 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2067} 2068 2069static void 2070aac_rx_qnotify(struct aac_softc *sc, int qbit) 2071{ 2072 debug_called(3); 2073 2074 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2075} 2076 2077static void 2078aac_fa_qnotify(struct aac_softc *sc, int qbit) 2079{ 2080 debug_called(3); 2081 2082 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2083 AAC_FA_HACK(sc); 2084} 2085 2086/* 2087 * Get the interrupt reason bits 2088 */ 2089static int 2090aac_sa_get_istatus(struct aac_softc *sc) 2091{ 2092 debug_called(3); 2093 2094 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2095} 2096 2097static int 2098aac_rx_get_istatus(struct aac_softc *sc) 2099{ 2100 debug_called(3); 2101 2102 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2103} 2104 2105static int 2106aac_fa_get_istatus(struct aac_softc *sc) 2107{ 2108 int val; 2109 2110 debug_called(3); 2111 2112 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2113 return (val); 2114} 2115 2116/* 2117 * Clear some interrupt reason bits 2118 */ 2119static void 2120aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2121{ 2122 debug_called(3); 2123 2124 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2125} 2126 2127static void 2128aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2129{ 2130 debug_called(3); 2131 2132 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2133} 2134 2135static void 2136aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2137{ 2138 debug_called(3); 2139 2140 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2141 AAC_FA_HACK(sc); 2142} 2143 2144/* 2145 * Populate the mailbox and set the command word 2146 */ 2147static void 2148aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2149 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2150{ 2151 debug_called(4); 2152 2153 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2154 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2155 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2156 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2157 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2158} 2159 2160static void 2161aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2162 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2163{ 2164 debug_called(4); 2165 2166 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2167 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2168 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2169 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2170 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2171} 2172 2173static void 2174aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2175 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2176{ 2177 debug_called(4); 2178 2179 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2180 AAC_FA_HACK(sc); 2181 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2182 AAC_FA_HACK(sc); 2183 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2184 AAC_FA_HACK(sc); 2185 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2186 AAC_FA_HACK(sc); 2187 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2188 AAC_FA_HACK(sc); 2189} 2190 2191/* 2192 * Fetch the immediate command status word 2193 */ 2194static int 2195aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2196{ 2197 debug_called(4); 2198 2199 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2200} 2201 2202static int 2203aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2204{ 2205 debug_called(4); 2206 2207 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2208} 2209 2210static int 2211aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2212{ 2213 int val; 2214 2215 debug_called(4); 2216 2217 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2218 return (val); 2219} 2220 2221/* 2222 * Set/clear interrupt masks 2223 */ 2224static void 2225aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2226{ 2227 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2228 2229 if (enable) { 2230 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2231 } else { 2232 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2233 } 2234} 2235 2236static void 2237aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2238{ 2239 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2240 2241 if (enable) { 2242 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2243 } else { 2244 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2245 } 2246} 2247 2248static void 2249aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2250{ 2251 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2252 2253 if (enable) { 2254 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2255 AAC_FA_HACK(sc); 2256 } else { 2257 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2258 AAC_FA_HACK(sc); 2259 } 2260} 2261 2262/* 2263 * Debugging and Diagnostics 2264 */ 2265 2266/* 2267 * Print some information about the controller. 2268 */ 2269static void 2270aac_describe_controller(struct aac_softc *sc) 2271{ 2272 struct aac_fib *fib; 2273 struct aac_adapter_info *info; 2274 2275 debug_called(2); 2276 2277 aac_alloc_sync_fib(sc, &fib, 0); 2278 2279 fib->data[0] = 0; 2280 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2281 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2282 aac_release_sync_fib(sc); 2283 return; 2284 } 2285 info = (struct aac_adapter_info *)&fib->data[0]; 2286 2287 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2288 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2289 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2290 aac_describe_code(aac_battery_platform, 2291 info->batteryPlatform)); 2292 2293 /* save the kernel revision structure for later use */ 2294 sc->aac_revision = info->KernelRevision; 2295 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2296 info->KernelRevision.external.comp.major, 2297 info->KernelRevision.external.comp.minor, 2298 info->KernelRevision.external.comp.dash, 2299 info->KernelRevision.buildNumber, 2300 (u_int32_t)(info->SerialNumber & 0xffffff)); 2301 2302 aac_release_sync_fib(sc); 2303 2304 if (1 || bootverbose) { 2305 device_printf(sc->aac_dev, "Supported Options=%b\n", 2306 sc->supported_options, 2307 "\20" 2308 "\1SNAPSHOT" 2309 "\2CLUSTERS" 2310 "\3WCACHE" 2311 "\4DATA64" 2312 "\5HOSTTIME" 2313 "\6RAID50" 2314 "\7WINDOW4GB" 2315 "\10SCSIUPGD" 2316 "\11SOFTERR" 2317 "\12NORECOND" 2318 "\13SGMAP64" 2319 "\14ALARM" 2320 "\15NONDASD"); 2321 } 2322} 2323 2324/* 2325 * Look up a text description of a numeric error code and return a pointer to 2326 * same. 2327 */ 2328static char * 2329aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2330{ 2331 int i; 2332 2333 for (i = 0; table[i].string != NULL; i++) 2334 if (table[i].code == code) 2335 return(table[i].string); 2336 return(table[i + 1].string); 2337} 2338 2339/* 2340 * Management Interface 2341 */ 2342 2343static int 2344aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2345{ 2346 struct aac_softc *sc; 2347 2348 debug_called(2); 2349 2350 sc = dev->si_drv1; 2351 2352 /* Check to make sure the device isn't already open */ 2353 if (sc->aac_state & AAC_STATE_OPEN) { 2354 return EBUSY; 2355 } 2356 sc->aac_state |= AAC_STATE_OPEN; 2357 2358 return 0; 2359} 2360 2361static int 2362aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2363{ 2364 struct aac_softc *sc; 2365 2366 debug_called(2); 2367 2368 sc = dev->si_drv1; 2369 2370 /* Mark this unit as no longer open */ 2371 sc->aac_state &= ~AAC_STATE_OPEN; 2372 2373 return 0; 2374} 2375 2376static int 2377aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2378{ 2379 union aac_statrequest *as; 2380 struct aac_softc *sc; 2381 int error = 0; 2382 int i; 2383 2384 debug_called(2); 2385 2386 as = (union aac_statrequest *)arg; 2387 sc = dev->si_drv1; 2388 2389 switch (cmd) { 2390 case AACIO_STATS: 2391 switch (as->as_item) { 2392 case AACQ_FREE: 2393 case AACQ_BIO: 2394 case AACQ_READY: 2395 case AACQ_BUSY: 2396 case AACQ_COMPLETE: 2397 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2398 sizeof(struct aac_qstat)); 2399 break; 2400 default: 2401 error = ENOENT; 2402 break; 2403 } 2404 break; 2405 2406 case FSACTL_SENDFIB: 2407 arg = *(caddr_t*)arg; 2408 case FSACTL_LNX_SENDFIB: 2409 debug(1, "FSACTL_SENDFIB"); 2410 error = aac_ioctl_sendfib(sc, arg); 2411 break; 2412 case FSACTL_AIF_THREAD: 2413 case FSACTL_LNX_AIF_THREAD: 2414 debug(1, "FSACTL_AIF_THREAD"); 2415 error = EINVAL; 2416 break; 2417 case FSACTL_OPEN_GET_ADAPTER_FIB: 2418 arg = *(caddr_t*)arg; 2419 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2420 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2421 /* 2422 * Pass the caller out an AdapterFibContext. 2423 * 2424 * Note that because we only support one opener, we 2425 * basically ignore this. Set the caller's context to a magic 2426 * number just in case. 2427 * 2428 * The Linux code hands the driver a pointer into kernel space, 2429 * and then trusts it when the caller hands it back. Aiee! 2430 * Here, we give it the proc pointer of the per-adapter aif 2431 * thread. It's only used as a sanity check in other calls. 2432 */ 2433 i = (int)sc->aifthread; 2434 error = copyout(&i, arg, sizeof(i)); 2435 break; 2436 case FSACTL_GET_NEXT_ADAPTER_FIB: 2437 arg = *(caddr_t*)arg; 2438 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2439 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2440 error = aac_getnext_aif(sc, arg); 2441 break; 2442 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2443 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2444 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2445 /* don't do anything here */ 2446 break; 2447 case FSACTL_MINIPORT_REV_CHECK: 2448 arg = *(caddr_t*)arg; 2449 case FSACTL_LNX_MINIPORT_REV_CHECK: 2450 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2451 error = aac_rev_check(sc, arg); 2452 break; 2453 case FSACTL_QUERY_DISK: 2454 arg = *(caddr_t*)arg; 2455 case FSACTL_LNX_QUERY_DISK: 2456 debug(1, "FSACTL_QUERY_DISK"); 2457 error = aac_query_disk(sc, arg); 2458 break; 2459 case FSACTL_DELETE_DISK: 2460 case FSACTL_LNX_DELETE_DISK: 2461 /* 2462 * We don't trust the underland to tell us when to delete a 2463 * container, rather we rely on an AIF coming from the 2464 * controller 2465 */ 2466 error = 0; 2467 break; 2468 default: 2469 debug(1, "unsupported cmd 0x%lx\n", cmd); 2470 error = EINVAL; 2471 break; 2472 } 2473 return(error); 2474} 2475 2476static int 2477aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2478{ 2479 struct aac_softc *sc; 2480 int revents; 2481 2482 sc = dev->si_drv1; 2483 revents = 0; 2484 2485 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2486 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2487 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2488 revents |= poll_events & (POLLIN | POLLRDNORM); 2489 } 2490 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2491 2492 if (revents == 0) { 2493 if (poll_events & (POLLIN | POLLRDNORM)) 2494 selrecord(td, &sc->rcv_select); 2495 } 2496 2497 return (revents); 2498} 2499 2500/* 2501 * Send a FIB supplied from userspace 2502 */ 2503static int 2504aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2505{ 2506 struct aac_command *cm; 2507 int size, error; 2508 2509 debug_called(2); 2510 2511 cm = NULL; 2512 2513 /* 2514 * Get a command 2515 */ 2516 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 2517 if (aac_alloc_command(sc, &cm)) { 2518 error = EBUSY; 2519 goto out; 2520 } 2521 2522 /* 2523 * Fetch the FIB header, then re-copy to get data as well. 2524 */ 2525 if ((error = copyin(ufib, cm->cm_fib, 2526 sizeof(struct aac_fib_header))) != 0) 2527 goto out; 2528 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2529 if (size > sizeof(struct aac_fib)) { 2530 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2531 size, sizeof(struct aac_fib)); 2532 size = sizeof(struct aac_fib); 2533 } 2534 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2535 goto out; 2536 cm->cm_fib->Header.Size = size; 2537 cm->cm_timestamp = time_second; 2538 2539 /* 2540 * Pass the FIB to the controller, wait for it to complete. 2541 */ 2542 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2543 device_printf(sc->aac_dev, 2544 "aac_wait_command return %d\n", error); 2545 goto out; 2546 } 2547 2548 /* 2549 * Copy the FIB and data back out to the caller. 2550 */ 2551 size = cm->cm_fib->Header.Size; 2552 if (size > sizeof(struct aac_fib)) { 2553 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2554 size, sizeof(struct aac_fib)); 2555 size = sizeof(struct aac_fib); 2556 } 2557 error = copyout(cm->cm_fib, ufib, size); 2558 2559out: 2560 if (cm != NULL) { 2561 aac_release_command(cm); 2562 } 2563 2564 AAC_LOCK_RELEASE(&sc->aac_io_lock); 2565 return(error); 2566} 2567 2568/* 2569 * Handle an AIF sent to us by the controller; queue it for later reference. 2570 * If the queue fills up, then drop the older entries. 2571 */ 2572static void 2573aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2574{ 2575 struct aac_aif_command *aif; 2576 struct aac_container *co, *co_next; 2577 struct aac_mntinfo *mi; 2578 struct aac_mntinforesp *mir = NULL; 2579 u_int16_t rsize; 2580 int next, found; 2581 int count = 0, added = 0, i = 0; 2582 2583 debug_called(2); 2584 2585 aif = (struct aac_aif_command*)&fib->data[0]; 2586 aac_print_aif(sc, aif); 2587 2588 /* Is it an event that we should care about? */ 2589 switch (aif->command) { 2590 case AifCmdEventNotify: 2591 switch (aif->data.EN.type) { 2592 case AifEnAddContainer: 2593 case AifEnDeleteContainer: 2594 /* 2595 * A container was added or deleted, but the message 2596 * doesn't tell us anything else! Re-enumerate the 2597 * containers and sort things out. 2598 */ 2599 aac_alloc_sync_fib(sc, &fib, 0); 2600 mi = (struct aac_mntinfo *)&fib->data[0]; 2601 do { 2602 /* 2603 * Ask the controller for its containers one at 2604 * a time. 2605 * XXX What if the controller's list changes 2606 * midway through this enumaration? 2607 * XXX This should be done async. 2608 */ 2609 bzero(mi, sizeof(struct aac_mntinfo)); 2610 mi->Command = VM_NameServe; 2611 mi->MntType = FT_FILESYS; 2612 mi->MntCount = i; 2613 rsize = sizeof(mir); 2614 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2615 sizeof(struct aac_mntinfo))) { 2616 printf("Error probing container %d\n", 2617 i); 2618 continue; 2619 } 2620 mir = (struct aac_mntinforesp *)&fib->data[0]; 2621 /* XXX Need to check if count changed */ 2622 count = mir->MntRespCount; 2623 /* 2624 * Check the container against our list. 2625 * co->co_found was already set to 0 in a 2626 * previous run. 2627 */ 2628 if ((mir->Status == ST_OK) && 2629 (mir->MntTable[0].VolType != CT_NONE)) { 2630 found = 0; 2631 TAILQ_FOREACH(co, 2632 &sc->aac_container_tqh, 2633 co_link) { 2634 if (co->co_mntobj.ObjectId == 2635 mir->MntTable[0].ObjectId) { 2636 co->co_found = 1; 2637 found = 1; 2638 break; 2639 } 2640 } 2641 /* 2642 * If the container matched, continue 2643 * in the list. 2644 */ 2645 if (found) { 2646 i++; 2647 continue; 2648 } 2649 2650 /* 2651 * This is a new container. Do all the 2652 * appropriate things to set it up. 2653 */ 2654 aac_add_container(sc, mir, 1); 2655 added = 1; 2656 } 2657 i++; 2658 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 2659 aac_release_sync_fib(sc); 2660 2661 /* 2662 * Go through our list of containers and see which ones 2663 * were not marked 'found'. Since the controller didn't 2664 * list them they must have been deleted. Do the 2665 * appropriate steps to destroy the device. Also reset 2666 * the co->co_found field. 2667 */ 2668 co = TAILQ_FIRST(&sc->aac_container_tqh); 2669 while (co != NULL) { 2670 if (co->co_found == 0) { 2671 device_delete_child(sc->aac_dev, 2672 co->co_disk); 2673 co_next = TAILQ_NEXT(co, co_link); 2674 AAC_LOCK_ACQUIRE(&sc-> 2675 aac_container_lock); 2676 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2677 co_link); 2678 AAC_LOCK_RELEASE(&sc-> 2679 aac_container_lock); 2680 FREE(co, M_AACBUF); 2681 co = co_next; 2682 } else { 2683 co->co_found = 0; 2684 co = TAILQ_NEXT(co, co_link); 2685 } 2686 } 2687 2688 /* Attach the newly created containers */ 2689 if (added) 2690 bus_generic_attach(sc->aac_dev); 2691 2692 break; 2693 2694 default: 2695 break; 2696 } 2697 2698 default: 2699 break; 2700 } 2701 2702 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2703 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2704 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2705 if (next != sc->aac_aifq_tail) { 2706 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2707 sc->aac_aifq_head = next; 2708 2709 /* On the off chance that someone is sleeping for an aif... */ 2710 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2711 wakeup(sc->aac_aifq); 2712 /* Wakeup any poll()ers */ 2713 selwakeup(&sc->rcv_select); 2714 } 2715 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2716 2717 return; 2718} 2719 2720/* 2721 * Return the Revision of the driver to userspace and check to see if the 2722 * userspace app is possibly compatible. This is extremely bogus since 2723 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2724 * returning what the card reported. 2725 */ 2726static int 2727aac_rev_check(struct aac_softc *sc, caddr_t udata) 2728{ 2729 struct aac_rev_check rev_check; 2730 struct aac_rev_check_resp rev_check_resp; 2731 int error = 0; 2732 2733 debug_called(2); 2734 2735 /* 2736 * Copyin the revision struct from userspace 2737 */ 2738 if ((error = copyin(udata, (caddr_t)&rev_check, 2739 sizeof(struct aac_rev_check))) != 0) { 2740 return error; 2741 } 2742 2743 debug(2, "Userland revision= %d\n", 2744 rev_check.callingRevision.buildNumber); 2745 2746 /* 2747 * Doctor up the response struct. 2748 */ 2749 rev_check_resp.possiblyCompatible = 1; 2750 rev_check_resp.adapterSWRevision.external.ul = 2751 sc->aac_revision.external.ul; 2752 rev_check_resp.adapterSWRevision.buildNumber = 2753 sc->aac_revision.buildNumber; 2754 2755 return(copyout((caddr_t)&rev_check_resp, udata, 2756 sizeof(struct aac_rev_check_resp))); 2757} 2758 2759/* 2760 * Pass the caller the next AIF in their queue 2761 */ 2762static int 2763aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2764{ 2765 struct get_adapter_fib_ioctl agf; 2766 int error; 2767 2768 debug_called(2); 2769 2770 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2771 2772 /* 2773 * Check the magic number that we gave the caller. 2774 */ 2775 if (agf.AdapterFibContext != (int)sc->aifthread) { 2776 error = EFAULT; 2777 } else { 2778 error = aac_return_aif(sc, agf.AifFib); 2779 if ((error == EAGAIN) && (agf.Wait)) { 2780 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2781 while (error == EAGAIN) { 2782 error = tsleep(sc->aac_aifq, PRIBIO | 2783 PCATCH, "aacaif", 0); 2784 if (error == 0) 2785 error = aac_return_aif(sc, 2786 agf.AifFib); 2787 } 2788 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2789 } 2790 } 2791 } 2792 return(error); 2793} 2794 2795/* 2796 * Hand the next AIF off the top of the queue out to userspace. 2797 */ 2798static int 2799aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2800{ 2801 int error; 2802 2803 debug_called(2); 2804 2805 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2806 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2807 error = EAGAIN; 2808 } else { 2809 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2810 sizeof(struct aac_aif_command)); 2811 if (error) 2812 device_printf(sc->aac_dev, 2813 "aac_return_aif: copyout returned %d\n", error); 2814 if (!error) 2815 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2816 AAC_AIFQ_LENGTH; 2817 } 2818 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2819 return(error); 2820} 2821 2822/* 2823 * Give the userland some information about the container. The AAC arch 2824 * expects the driver to be a SCSI passthrough type driver, so it expects 2825 * the containers to have b:t:l numbers. Fake it. 2826 */ 2827static int 2828aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2829{ 2830 struct aac_query_disk query_disk; 2831 struct aac_container *co; 2832 struct aac_disk *disk; 2833 int error, id; 2834 2835 debug_called(2); 2836 2837 disk = NULL; 2838 2839 error = copyin(uptr, (caddr_t)&query_disk, 2840 sizeof(struct aac_query_disk)); 2841 if (error) 2842 return (error); 2843 2844 id = query_disk.ContainerNumber; 2845 if (id == -1) 2846 return (EINVAL); 2847 2848 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2849 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2850 if (co->co_mntobj.ObjectId == id) 2851 break; 2852 } 2853 2854 if (co == NULL) { 2855 query_disk.Valid = 0; 2856 query_disk.Locked = 0; 2857 query_disk.Deleted = 1; /* XXX is this right? */ 2858 } else { 2859 disk = device_get_softc(co->co_disk); 2860 query_disk.Valid = 1; 2861 query_disk.Locked = 2862 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2863 query_disk.Deleted = 0; 2864 query_disk.Bus = device_get_unit(sc->aac_dev); 2865 query_disk.Target = disk->unit; 2866 query_disk.Lun = 0; 2867 query_disk.UnMapped = 0; 2868 sprintf(&query_disk.diskDeviceName[0], "%s%d", 2869 disk->ad_disk.d_name, disk->ad_disk.d_unit); 2870 } 2871 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2872 2873 error = copyout((caddr_t)&query_disk, uptr, 2874 sizeof(struct aac_query_disk)); 2875 2876 return (error); 2877} 2878 2879static void 2880aac_get_bus_info(struct aac_softc *sc) 2881{ 2882 struct aac_fib *fib; 2883 struct aac_ctcfg *c_cmd; 2884 struct aac_ctcfg_resp *c_resp; 2885 struct aac_vmioctl *vmi; 2886 struct aac_vmi_businf_resp *vmi_resp; 2887 struct aac_getbusinf businfo; 2888 struct aac_sim *caminf; 2889 device_t child; 2890 int i, found, error; 2891 2892 aac_alloc_sync_fib(sc, &fib, 0); 2893 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2894 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2895 2896 c_cmd->Command = VM_ContainerConfig; 2897 c_cmd->cmd = CT_GET_SCSI_METHOD; 2898 c_cmd->param = 0; 2899 2900 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2901 sizeof(struct aac_ctcfg)); 2902 if (error) { 2903 device_printf(sc->aac_dev, "Error %d sending " 2904 "VM_ContainerConfig command\n", error); 2905 aac_release_sync_fib(sc); 2906 return; 2907 } 2908 2909 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2910 if (c_resp->Status != ST_OK) { 2911 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2912 c_resp->Status); 2913 aac_release_sync_fib(sc); 2914 return; 2915 } 2916 2917 sc->scsi_method_id = c_resp->param; 2918 2919 vmi = (struct aac_vmioctl *)&fib->data[0]; 2920 bzero(vmi, sizeof(struct aac_vmioctl)); 2921 2922 vmi->Command = VM_Ioctl; 2923 vmi->ObjType = FT_DRIVE; 2924 vmi->MethId = sc->scsi_method_id; 2925 vmi->ObjId = 0; 2926 vmi->IoctlCmd = GetBusInfo; 2927 2928 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2929 sizeof(struct aac_vmioctl)); 2930 if (error) { 2931 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2932 error); 2933 aac_release_sync_fib(sc); 2934 return; 2935 } 2936 2937 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2938 if (vmi_resp->Status != ST_OK) { 2939 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2940 vmi_resp->Status); 2941 aac_release_sync_fib(sc); 2942 return; 2943 } 2944 2945 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2946 aac_release_sync_fib(sc); 2947 2948 found = 0; 2949 for (i = 0; i < businfo.BusCount; i++) { 2950 if (businfo.BusValid[i] != AAC_BUS_VALID) 2951 continue; 2952 2953 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), 2954 M_AACBUF, M_NOWAIT | M_ZERO); 2955 if (caminf == NULL) 2956 continue; 2957 2958 child = device_add_child(sc->aac_dev, "aacp", -1); 2959 if (child == NULL) { 2960 device_printf(sc->aac_dev, "device_add_child failed\n"); 2961 continue; 2962 } 2963 2964 caminf->TargetsPerBus = businfo.TargetsPerBus; 2965 caminf->BusNumber = i; 2966 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2967 caminf->aac_sc = sc; 2968 caminf->sim_dev = child; 2969 2970 device_set_ivars(child, caminf); 2971 device_set_desc(child, "SCSI Passthrough Bus"); 2972 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2973 2974 found = 1; 2975 } 2976 2977 if (found) 2978 bus_generic_attach(sc->aac_dev); 2979 2980 return; 2981} 2982