aac.c revision 129923
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 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: head/sys/dev/aac/aac.c 129923 2004-06-01 05:32:26Z scottl $"); 32 33/* 34 * Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters. 35 */ 36 37#include "opt_aac.h" 38 39/* #include <stddef.h> */ 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/malloc.h> 43#include <sys/kernel.h> 44#include <sys/kthread.h> 45#include <sys/sysctl.h> 46#include <sys/poll.h> 47#include <sys/ioccom.h> 48 49#include <sys/bus.h> 50#include <sys/conf.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 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); 75static void aac_command_thread(struct aac_softc *sc); 76 77/* Command Buffer Management */ 78static void aac_map_command_sg(void *arg, bus_dma_segment_t *segs, 79 int nseg, int error); 80static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 81 int nseg, int error); 82static int aac_alloc_commands(struct aac_softc *sc); 83static void aac_free_commands(struct aac_softc *sc); 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_mailbox(struct aac_softc *sc, int mb); 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_mailbox, 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_mailbox(struct aac_softc *sc, int mb); 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_mailbox, 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_mailbox(struct aac_softc *sc, int mb); 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_mailbox, 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 182static struct cdevsw aac_cdevsw = { 183 .d_version = D_VERSION, 184 .d_flags = D_NEEDGIANT, 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}; 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 /* Initialize the local AIF queue pointers */ 246 sc->aac_aifq_head = sc->aac_aifq_tail = AAC_AIFQ_LENGTH; 247 248 /* 249 * Initialise the adapter. 250 */ 251 if ((error = aac_init(sc)) != 0) 252 return(error); 253 254 /* 255 * Print a little information about the controller. 256 */ 257 aac_describe_controller(sc); 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->flags & AAC_FLAGS_ENABLE_CAM) != 0) { 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 count = 0, 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 printf("error probing container %d", i); 332 continue; 333 } 334 335 mir = (struct aac_mntinforesp *)&fib->data[0]; 336 /* XXX Need to check if count changed */ 337 count = mir->MntRespCount; 338 aac_add_container(sc, mir, 0); 339 i++; 340 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 341 342 aac_release_sync_fib(sc); 343 344 /* poke the bus to actually attach the child devices */ 345 if (bus_generic_attach(sc->aac_dev)) 346 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 347 348 /* mark the controller up */ 349 sc->aac_state &= ~AAC_STATE_SUSPEND; 350 351 /* enable interrupts now */ 352 AAC_UNMASK_INTERRUPTS(sc); 353} 354 355/* 356 * Create a device to respresent a new container 357 */ 358static void 359aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 360{ 361 struct aac_container *co; 362 device_t child; 363 364 /* 365 * Check container volume type for validity. Note that many of 366 * the possible types may never show up. 367 */ 368 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 369 co = (struct aac_container *)malloc(sizeof *co, M_AACBUF, 370 M_NOWAIT | M_ZERO); 371 if (co == NULL) 372 panic("Out of memory?!\n"); 373 debug(1, "id %x name '%.16s' size %u type %d", 374 mir->MntTable[0].ObjectId, 375 mir->MntTable[0].FileSystemName, 376 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 377 378 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 379 device_printf(sc->aac_dev, "device_add_child failed\n"); 380 else 381 device_set_ivars(child, co); 382 device_set_desc(child, aac_describe_code(aac_container_types, 383 mir->MntTable[0].VolType)); 384 co->co_disk = child; 385 co->co_found = f; 386 bcopy(&mir->MntTable[0], &co->co_mntobj, 387 sizeof(struct aac_mntobj)); 388 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 389 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 390 AAC_LOCK_RELEASE(&sc->aac_container_lock); 391 } 392} 393 394/* 395 * Free all of the resources associated with (sc) 396 * 397 * Should not be called if the controller is active. 398 */ 399void 400aac_free(struct aac_softc *sc) 401{ 402 403 debug_called(1); 404 405 /* remove the control device */ 406 if (sc->aac_dev_t != NULL) 407 destroy_dev(sc->aac_dev_t); 408 409 /* throw away any FIB buffers, discard the FIB DMA tag */ 410 aac_free_commands(sc); 411 if (sc->aac_fib_dmat) 412 bus_dma_tag_destroy(sc->aac_fib_dmat); 413 414 free(sc->aac_commands, M_AACBUF); 415 416 /* destroy the common area */ 417 if (sc->aac_common) { 418 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 419 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 420 sc->aac_common_dmamap); 421 } 422 if (sc->aac_common_dmat) 423 bus_dma_tag_destroy(sc->aac_common_dmat); 424 425 /* disconnect the interrupt handler */ 426 if (sc->aac_intr) 427 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 428 if (sc->aac_irq != NULL) 429 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 430 sc->aac_irq); 431 432 /* destroy data-transfer DMA tag */ 433 if (sc->aac_buffer_dmat) 434 bus_dma_tag_destroy(sc->aac_buffer_dmat); 435 436 /* destroy the parent DMA tag */ 437 if (sc->aac_parent_dmat) 438 bus_dma_tag_destroy(sc->aac_parent_dmat); 439 440 /* release the register window mapping */ 441 if (sc->aac_regs_resource != NULL) 442 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 443 sc->aac_regs_rid, sc->aac_regs_resource); 444} 445 446/* 447 * Disconnect from the controller completely, in preparation for unload. 448 */ 449int 450aac_detach(device_t dev) 451{ 452 struct aac_softc *sc; 453 struct aac_container *co; 454 struct aac_sim *sim; 455 int error; 456 457 debug_called(1); 458 459 sc = device_get_softc(dev); 460 461 if (sc->aac_state & AAC_STATE_OPEN) 462 return(EBUSY); 463 464 /* Remove the child containers */ 465 while ((co = TAILQ_FIRST(&sc->aac_container_tqh)) != NULL) { 466 error = device_delete_child(dev, co->co_disk); 467 if (error) 468 return (error); 469 TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link); 470 free(co, M_AACBUF); 471 } 472 473 /* Remove the CAM SIMs */ 474 while ((sim = TAILQ_FIRST(&sc->aac_sim_tqh)) != NULL) { 475 TAILQ_REMOVE(&sc->aac_sim_tqh, sim, sim_link); 476 error = device_delete_child(dev, sim->sim_dev); 477 if (error) 478 return (error); 479 free(sim, M_AACBUF); 480 } 481 482 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 483 sc->aifflags |= AAC_AIFFLAGS_EXIT; 484 wakeup(sc->aifthread); 485 tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 486 } 487 488 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 489 panic("Cannot shutdown AIF thread\n"); 490 491 if ((error = aac_shutdown(dev))) 492 return(error); 493 494 EVENTHANDLER_DEREGISTER(shutdown_final, sc->eh); 495 496 aac_free(sc); 497 498 return(0); 499} 500 501/* 502 * Bring the controller down to a dormant state and detach all child devices. 503 * 504 * This function is called before detach or system shutdown. 505 * 506 * Note that we can assume that the bioq on the controller is empty, as we won't 507 * allow shutdown if any device is open. 508 */ 509int 510aac_shutdown(device_t dev) 511{ 512 struct aac_softc *sc; 513 struct aac_fib *fib; 514 struct aac_close_command *cc; 515 516 debug_called(1); 517 518 sc = device_get_softc(dev); 519 520 sc->aac_state |= AAC_STATE_SUSPEND; 521 522 /* 523 * Send a Container shutdown followed by a HostShutdown FIB to the 524 * controller to convince it that we don't want to talk to it anymore. 525 * We've been closed and all I/O completed already 526 */ 527 device_printf(sc->aac_dev, "shutting down controller..."); 528 529 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 530 cc = (struct aac_close_command *)&fib->data[0]; 531 532 bzero(cc, sizeof(struct aac_close_command)); 533 cc->Command = VM_CloseAll; 534 cc->ContainerId = 0xffffffff; 535 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 536 sizeof(struct aac_close_command))) 537 printf("FAILED.\n"); 538 else 539 printf("done\n"); 540#if 0 541 else { 542 fib->data[0] = 0; 543 /* 544 * XXX Issuing this command to the controller makes it shut down 545 * but also keeps it from coming back up without a reset of the 546 * PCI bus. This is not desirable if you are just unloading the 547 * driver module with the intent to reload it later. 548 */ 549 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 550 fib, 1)) { 551 printf("FAILED.\n"); 552 } else { 553 printf("done.\n"); 554 } 555 } 556#endif 557 558 AAC_MASK_INTERRUPTS(sc); 559 560 return(0); 561} 562 563/* 564 * Bring the controller to a quiescent state, ready for system suspend. 565 */ 566int 567aac_suspend(device_t dev) 568{ 569 struct aac_softc *sc; 570 571 debug_called(1); 572 573 sc = device_get_softc(dev); 574 575 sc->aac_state |= AAC_STATE_SUSPEND; 576 577 AAC_MASK_INTERRUPTS(sc); 578 return(0); 579} 580 581/* 582 * Bring the controller back to a state ready for operation. 583 */ 584int 585aac_resume(device_t dev) 586{ 587 struct aac_softc *sc; 588 589 debug_called(1); 590 591 sc = device_get_softc(dev); 592 593 sc->aac_state &= ~AAC_STATE_SUSPEND; 594 AAC_UNMASK_INTERRUPTS(sc); 595 return(0); 596} 597 598/* 599 * Take an interrupt. 600 */ 601void 602aac_intr(void *arg) 603{ 604 struct aac_softc *sc; 605 u_int16_t reason; 606 607 debug_called(2); 608 609 sc = (struct aac_softc *)arg; 610 611 /* 612 * Read the status register directly. This is faster than taking the 613 * driver lock and reading the queues directly. It also saves having 614 * to turn parts of the driver lock into a spin mutex, which would be 615 * ugly. 616 */ 617 reason = AAC_GET_ISTATUS(sc); 618 AAC_CLEAR_ISTATUS(sc, reason); 619 620 /* handle completion processing */ 621 if (reason & AAC_DB_RESPONSE_READY) 622 taskqueue_enqueue_fast(taskqueue_fast, &sc->aac_task_complete); 623 624 /* controller wants to talk to us */ 625 if (reason & (AAC_DB_PRINTF | AAC_DB_COMMAND_READY)) { 626 /* 627 * XXX Make sure that we don't get fooled by strange messages 628 * that start with a NULL. 629 */ 630 if ((reason & AAC_DB_PRINTF) && 631 (sc->aac_common->ac_printf[0] == 0)) 632 sc->aac_common->ac_printf[0] = 32; 633 634 /* 635 * This might miss doing the actual wakeup. However, the 636 * msleep that this is waking up has a timeout, so it will 637 * wake up eventually. AIFs and printfs are low enough 638 * priority that they can handle hanging out for a few seconds 639 * if needed. 640 */ 641 wakeup(sc->aifthread); 642 } 643} 644 645/* 646 * Command Processing 647 */ 648 649/* 650 * Start as much queued I/O as possible on the controller 651 */ 652void 653aac_startio(struct aac_softc *sc) 654{ 655 struct aac_command *cm; 656 int error; 657 658 debug_called(2); 659 660 for (;;) { 661 /* 662 * This flag might be set if the card is out of resources. 663 * Checking it here prevents an infinite loop of deferrals. 664 */ 665 if (sc->flags & AAC_QUEUE_FRZN) 666 break; 667 668 /* 669 * Try to get a command that's been put off for lack of 670 * resources 671 */ 672 cm = aac_dequeue_ready(sc); 673 674 /* 675 * Try to build a command off the bio queue (ignore error 676 * return) 677 */ 678 if (cm == NULL) 679 aac_bio_command(sc, &cm); 680 681 /* nothing to do? */ 682 if (cm == NULL) 683 break; 684 685 /* don't map more than once */ 686 if (cm->cm_flags & AAC_CMD_MAPPED) 687 panic("aac: command %p already mapped", cm); 688 689 /* 690 * Set up the command to go to the controller. If there are no 691 * data buffers associated with the command then it can bypass 692 * busdma. 693 */ 694 if (cm->cm_datalen != 0) { 695 error = bus_dmamap_load(sc->aac_buffer_dmat, 696 cm->cm_datamap, cm->cm_data, 697 cm->cm_datalen, 698 aac_map_command_sg, cm, 0); 699 if (error == EINPROGRESS) { 700 debug(1, "freezing queue\n"); 701 sc->flags |= AAC_QUEUE_FRZN; 702 error = 0; 703 } else 704 panic("aac_startio: unexpected error %d from " 705 "busdma\n", error); 706 } else 707 aac_map_command_sg(cm, NULL, 0, 0); 708 } 709} 710 711/* 712 * Handle notification of one or more FIBs coming from the controller. 713 */ 714static void 715aac_command_thread(struct aac_softc *sc) 716{ 717 struct aac_fib *fib; 718 u_int32_t fib_size; 719 int size, retval; 720 721 debug_called(2); 722 723 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 724 sc->aifflags = AAC_AIFFLAGS_RUNNING; 725 726 while ((sc->aifflags & AAC_AIFFLAGS_EXIT) == 0) { 727 728 retval = 0; 729 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 730 retval = msleep(sc->aifthread, &sc->aac_io_lock, PRIBIO, 731 "aifthd", AAC_PERIODIC_INTERVAL * hz); 732 733 /* 734 * First see if any FIBs need to be allocated. This needs 735 * to be called without the driver lock because contigmalloc 736 * will grab Giant, and would result in an LOR. 737 */ 738 if ((sc->aifflags & AAC_AIFFLAGS_ALLOCFIBS) != 0) { 739 AAC_LOCK_RELEASE(&sc->aac_io_lock); 740 aac_alloc_commands(sc); 741 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 742 sc->aifflags &= ~AAC_AIFFLAGS_ALLOCFIBS; 743 aac_startio(sc); 744 } 745 746 /* 747 * While we're here, check to see if any commands are stuck. 748 * This is pretty low-priority, so it's ok if it doesn't 749 * always fire. 750 */ 751 if (retval == EWOULDBLOCK) 752 aac_timeout(sc); 753 754 /* Check the hardware printf message buffer */ 755 if (sc->aac_common->ac_printf[0] != 0) 756 aac_print_printf(sc); 757 758 /* Also check to see if the adapter has a command for us. */ 759 while (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 760 &fib_size, &fib) == 0) { 761 762 AAC_PRINT_FIB(sc, fib); 763 764 switch (fib->Header.Command) { 765 case AifRequest: 766 aac_handle_aif(sc, fib); 767 break; 768 default: 769 device_printf(sc->aac_dev, "unknown command " 770 "from controller\n"); 771 break; 772 } 773 774 if ((fib->Header.XferState == 0) || 775 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 776 break; 777 778 /* Return the AIF to the controller. */ 779 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 780 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 781 *(AAC_FSAStatus*)fib->data = ST_OK; 782 783 /* XXX Compute the Size field? */ 784 size = fib->Header.Size; 785 if (size > sizeof(struct aac_fib)) { 786 size = sizeof(struct aac_fib); 787 fib->Header.Size = size; 788 } 789 /* 790 * Since we did not generate this command, it 791 * cannot go through the normal 792 * enqueue->startio chain. 793 */ 794 aac_enqueue_response(sc, 795 AAC_ADAP_NORM_RESP_QUEUE, 796 fib); 797 } 798 } 799 } 800 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 801 AAC_LOCK_RELEASE(&sc->aac_io_lock); 802 wakeup(sc->aac_dev); 803 804 kthread_exit(0); 805} 806 807/* 808 * Process completed commands. 809 */ 810static void 811aac_complete(void *context, int pending) 812{ 813 struct aac_softc *sc; 814 struct aac_command *cm; 815 struct aac_fib *fib; 816 u_int32_t fib_size; 817 818 debug_called(2); 819 820 sc = (struct aac_softc *)context; 821 822 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 823 824 /* pull completed commands off the queue */ 825 for (;;) { 826 /* look for completed FIBs on our queue */ 827 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 828 &fib)) 829 break; /* nothing to do */ 830 831 /* get the command, unmap and hand off for processing */ 832 cm = sc->aac_commands + fib->Header.SenderData; 833 if (cm == NULL) { 834 AAC_PRINT_FIB(sc, fib); 835 break; 836 } 837 838 aac_remove_busy(cm); 839 aac_unmap_command(cm); 840 cm->cm_flags |= AAC_CMD_COMPLETED; 841 842 /* is there a completion handler? */ 843 if (cm->cm_complete != NULL) { 844 cm->cm_complete(cm); 845 } else { 846 /* assume that someone is sleeping on this command */ 847 wakeup(cm); 848 } 849 } 850 851 /* see if we can start some more I/O */ 852 sc->flags &= ~AAC_QUEUE_FRZN; 853 aac_startio(sc); 854 855 AAC_LOCK_RELEASE(&sc->aac_io_lock); 856} 857 858/* 859 * Handle a bio submitted from a disk device. 860 */ 861void 862aac_submit_bio(struct bio *bp) 863{ 864 struct aac_disk *ad; 865 struct aac_softc *sc; 866 867 debug_called(2); 868 869 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 870 sc = ad->ad_controller; 871 872 /* queue the BIO and try to get some work done */ 873 aac_enqueue_bio(sc, bp); 874 aac_startio(sc); 875} 876 877/* 878 * Get a bio and build a command to go with it. 879 */ 880static int 881aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 882{ 883 struct aac_command *cm; 884 struct aac_fib *fib; 885 struct aac_disk *ad; 886 struct bio *bp; 887 888 debug_called(2); 889 890 /* get the resources we will need */ 891 cm = NULL; 892 bp = NULL; 893 if (aac_alloc_command(sc, &cm)) /* get a command */ 894 goto fail; 895 if ((bp = aac_dequeue_bio(sc)) == NULL) 896 goto fail; 897 898 /* fill out the command */ 899 cm->cm_data = (void *)bp->bio_data; 900 cm->cm_datalen = bp->bio_bcount; 901 cm->cm_complete = aac_bio_complete; 902 cm->cm_private = bp; 903 cm->cm_timestamp = time_second; 904 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 905 906 /* build the FIB */ 907 fib = cm->cm_fib; 908 fib->Header.Size = sizeof(struct aac_fib_header); 909 fib->Header.XferState = 910 AAC_FIBSTATE_HOSTOWNED | 911 AAC_FIBSTATE_INITIALISED | 912 AAC_FIBSTATE_EMPTY | 913 AAC_FIBSTATE_FROMHOST | 914 AAC_FIBSTATE_REXPECTED | 915 AAC_FIBSTATE_NORM | 916 AAC_FIBSTATE_ASYNC | 917 AAC_FIBSTATE_FAST_RESPONSE; 918 919 /* build the read/write request */ 920 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 921 922 if ((sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 923 fib->Header.Command = ContainerCommand; 924 if (bp->bio_cmd == BIO_READ) { 925 struct aac_blockread *br; 926 br = (struct aac_blockread *)&fib->data[0]; 927 br->Command = VM_CtBlockRead; 928 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 929 br->BlockNumber = bp->bio_pblkno; 930 br->ByteCount = bp->bio_bcount; 931 fib->Header.Size += sizeof(struct aac_blockread); 932 cm->cm_sgtable = &br->SgMap; 933 cm->cm_flags |= AAC_CMD_DATAIN; 934 } else { 935 struct aac_blockwrite *bw; 936 bw = (struct aac_blockwrite *)&fib->data[0]; 937 bw->Command = VM_CtBlockWrite; 938 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 939 bw->BlockNumber = bp->bio_pblkno; 940 bw->ByteCount = bp->bio_bcount; 941 bw->Stable = CUNSTABLE; 942 fib->Header.Size += sizeof(struct aac_blockwrite); 943 cm->cm_flags |= AAC_CMD_DATAOUT; 944 cm->cm_sgtable = &bw->SgMap; 945 } 946 } else { 947 fib->Header.Command = ContainerCommand64; 948 if (bp->bio_cmd == BIO_READ) { 949 struct aac_blockread64 *br; 950 br = (struct aac_blockread64 *)&fib->data[0]; 951 br->Command = VM_CtHostRead64; 952 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 953 br->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 954 br->BlockNumber = bp->bio_pblkno; 955 br->Pad = 0; 956 br->Flags = 0; 957 fib->Header.Size += sizeof(struct aac_blockread64); 958 cm->cm_flags |= AAC_CMD_DATAOUT; 959 (struct aac_sg_table64 *)cm->cm_sgtable = &br->SgMap64; 960 } else { 961 struct aac_blockwrite64 *bw; 962 bw = (struct aac_blockwrite64 *)&fib->data[0]; 963 bw->Command = VM_CtHostWrite64; 964 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 965 bw->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 966 bw->BlockNumber = bp->bio_pblkno; 967 bw->Pad = 0; 968 bw->Flags = 0; 969 fib->Header.Size += sizeof(struct aac_blockwrite64); 970 cm->cm_flags |= AAC_CMD_DATAIN; 971 (struct aac_sg_table64 *)cm->cm_sgtable = &bw->SgMap64; 972 } 973 } 974 975 *cmp = cm; 976 return(0); 977 978fail: 979 if (bp != NULL) 980 aac_enqueue_bio(sc, bp); 981 if (cm != NULL) 982 aac_release_command(cm); 983 return(ENOMEM); 984} 985 986/* 987 * Handle a bio-instigated command that has been completed. 988 */ 989static void 990aac_bio_complete(struct aac_command *cm) 991{ 992 struct aac_blockread_response *brr; 993 struct aac_blockwrite_response *bwr; 994 struct bio *bp; 995 AAC_FSAStatus status; 996 997 /* fetch relevant status and then release the command */ 998 bp = (struct bio *)cm->cm_private; 999 if (bp->bio_cmd == BIO_READ) { 1000 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 1001 status = brr->Status; 1002 } else { 1003 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 1004 status = bwr->Status; 1005 } 1006 aac_release_command(cm); 1007 1008 /* fix up the bio based on status */ 1009 if (status == ST_OK) { 1010 bp->bio_resid = 0; 1011 } else { 1012 bp->bio_error = EIO; 1013 bp->bio_flags |= BIO_ERROR; 1014 /* pass an error string out to the disk layer */ 1015 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1016 status); 1017 } 1018 aac_biodone(bp); 1019} 1020 1021/* 1022 * Submit a command to the controller, return when it completes. 1023 * XXX This is very dangerous! If the card has gone out to lunch, we could 1024 * be stuck here forever. At the same time, signals are not caught 1025 * because there is a risk that a signal could wakeup the sleep before 1026 * the card has a chance to complete the command. Since there is no way 1027 * to cancel a command that is in progress, we can't protect against the 1028 * card completing a command late and spamming the command and data 1029 * memory. So, we are held hostage until the command completes. 1030 */ 1031static int 1032aac_wait_command(struct aac_command *cm) 1033{ 1034 struct aac_softc *sc; 1035 int error; 1036 1037 debug_called(2); 1038 1039 sc = cm->cm_sc; 1040 1041 /* Put the command on the ready queue and get things going */ 1042 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1043 aac_enqueue_ready(cm); 1044 aac_startio(sc); 1045 error = msleep(cm, &sc->aac_io_lock, PRIBIO, "aacwait", 0); 1046 return(error); 1047} 1048 1049/* 1050 *Command Buffer Management 1051 */ 1052 1053/* 1054 * Allocate a command. 1055 */ 1056int 1057aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1058{ 1059 struct aac_command *cm; 1060 1061 debug_called(3); 1062 1063 if ((cm = aac_dequeue_free(sc)) == NULL) { 1064 if (sc->total_fibs < sc->aac_max_fibs) { 1065 sc->aifflags |= AAC_AIFFLAGS_ALLOCFIBS; 1066 wakeup(sc->aifthread); 1067 } 1068 return (EBUSY); 1069 } 1070 1071 *cmp = cm; 1072 return(0); 1073} 1074 1075/* 1076 * Release a command back to the freelist. 1077 */ 1078void 1079aac_release_command(struct aac_command *cm) 1080{ 1081 debug_called(3); 1082 1083 /* (re)initialise the command/FIB */ 1084 cm->cm_sgtable = NULL; 1085 cm->cm_flags = 0; 1086 cm->cm_complete = NULL; 1087 cm->cm_private = NULL; 1088 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1089 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1090 cm->cm_fib->Header.Flags = 0; 1091 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1092 1093 /* 1094 * These are duplicated in aac_start to cover the case where an 1095 * intermediate stage may have destroyed them. They're left 1096 * initialised here for debugging purposes only. 1097 */ 1098 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1099 cm->cm_fib->Header.SenderData = 0; 1100 1101 aac_enqueue_free(cm); 1102} 1103 1104/* 1105 * Map helper for command/FIB allocation. 1106 */ 1107static void 1108aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1109{ 1110 uint32_t *fibphys; 1111 1112 fibphys = (uint32_t *)arg; 1113 1114 debug_called(3); 1115 1116 *fibphys = segs[0].ds_addr; 1117} 1118 1119/* 1120 * Allocate and initialise commands/FIBs for this adapter. 1121 */ 1122static int 1123aac_alloc_commands(struct aac_softc *sc) 1124{ 1125 struct aac_command *cm; 1126 struct aac_fibmap *fm; 1127 uint32_t fibphys; 1128 int i, error; 1129 1130 debug_called(2); 1131 1132 if (sc->total_fibs + AAC_FIB_COUNT > sc->aac_max_fibs) 1133 return (ENOMEM); 1134 1135 fm = malloc(sizeof(struct aac_fibmap), M_AACBUF, M_NOWAIT|M_ZERO); 1136 if (fm == NULL) 1137 return (ENOMEM); 1138 1139 /* allocate the FIBs in DMAable memory and load them */ 1140 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs, 1141 BUS_DMA_NOWAIT, &fm->aac_fibmap)) { 1142 device_printf(sc->aac_dev, 1143 "Not enough contiguous memory available.\n"); 1144 free(fm, M_AACBUF); 1145 return (ENOMEM); 1146 } 1147 1148 /* Ignore errors since this doesn't bounce */ 1149 (void)bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs, 1150 AAC_FIB_COUNT * sizeof(struct aac_fib), 1151 aac_map_command_helper, &fibphys, 0); 1152 1153 /* initialise constant fields in the command structure */ 1154 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 1155 bzero(fm->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1156 for (i = 0; i < AAC_FIB_COUNT; i++) { 1157 cm = sc->aac_commands + sc->total_fibs; 1158 fm->aac_commands = cm; 1159 cm->cm_sc = sc; 1160 cm->cm_fib = fm->aac_fibs + i; 1161 cm->cm_fibphys = fibphys + (i * sizeof(struct aac_fib)); 1162 cm->cm_index = sc->total_fibs; 1163 1164 if ((error = bus_dmamap_create(sc->aac_buffer_dmat, 0, 1165 &cm->cm_datamap)) == 0) 1166 aac_release_command(cm); 1167 else 1168 break; 1169 sc->total_fibs++; 1170 } 1171 1172 if (i > 0) { 1173 TAILQ_INSERT_TAIL(&sc->aac_fibmap_tqh, fm, fm_link); 1174 debug(1, "total_fibs= %d\n", sc->total_fibs); 1175 AAC_LOCK_RELEASE(&sc->aac_io_lock); 1176 return (0); 1177 } 1178 1179 AAC_LOCK_RELEASE(&sc->aac_io_lock); 1180 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1181 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1182 free(fm, M_AACBUF); 1183 return (ENOMEM); 1184} 1185 1186/* 1187 * Free FIBs owned by this adapter. 1188 */ 1189static void 1190aac_free_commands(struct aac_softc *sc) 1191{ 1192 struct aac_fibmap *fm; 1193 struct aac_command *cm; 1194 int i; 1195 1196 debug_called(1); 1197 1198 while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) { 1199 1200 TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link); 1201 /* 1202 * We check against total_fibs to handle partially 1203 * allocated blocks. 1204 */ 1205 for (i = 0; i < AAC_FIB_COUNT && sc->total_fibs--; i++) { 1206 cm = fm->aac_commands + i; 1207 bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap); 1208 } 1209 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1210 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1211 free(fm, M_AACBUF); 1212 } 1213} 1214 1215/* 1216 * Command-mapping helper function - populate this command's s/g table. 1217 */ 1218static void 1219aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1220{ 1221 struct aac_softc *sc; 1222 struct aac_command *cm; 1223 struct aac_fib *fib; 1224 int i; 1225 1226 debug_called(3); 1227 1228 cm = (struct aac_command *)arg; 1229 sc = cm->cm_sc; 1230 fib = cm->cm_fib; 1231 1232 /* copy into the FIB */ 1233 if (cm->cm_sgtable != NULL) { 1234 if ((cm->cm_sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 1235 struct aac_sg_table *sg; 1236 sg = cm->cm_sgtable; 1237 sg->SgCount = nseg; 1238 for (i = 0; i < nseg; i++) { 1239 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1240 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1241 } 1242 /* update the FIB size for the s/g count */ 1243 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1244 } else { 1245 struct aac_sg_table64 *sg; 1246 sg = (struct aac_sg_table64 *)cm->cm_sgtable; 1247 sg->SgCount = nseg; 1248 for (i = 0; i < nseg; i++) { 1249 sg->SgEntry64[i].SgAddress = segs[i].ds_addr; 1250 sg->SgEntry64[i].SgByteCount = segs[i].ds_len; 1251 } 1252 /* update the FIB size for the s/g count */ 1253 fib->Header.Size += nseg*sizeof(struct aac_sg_entry64); 1254 } 1255 } 1256 1257 /* Fix up the address values in the FIB. Use the command array index 1258 * instead of a pointer since these fields are only 32 bits. Shift 1259 * the SenderFibAddress over to make room for the fast response bit. 1260 */ 1261 cm->cm_fib->Header.SenderFibAddress = (cm->cm_index << 1); 1262 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 1263 1264 /* save a pointer to the command for speedy reverse-lookup */ 1265 cm->cm_fib->Header.SenderData = cm->cm_index; 1266 1267 if (cm->cm_flags & AAC_CMD_DATAIN) 1268 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1269 BUS_DMASYNC_PREREAD); 1270 if (cm->cm_flags & AAC_CMD_DATAOUT) 1271 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1272 BUS_DMASYNC_PREWRITE); 1273 cm->cm_flags |= AAC_CMD_MAPPED; 1274 1275 /* Put the FIB on the outbound queue */ 1276 if (aac_enqueue_fib(sc, cm->cm_queue, cm) == EBUSY) { 1277 aac_unmap_command(cm); 1278 sc->flags |= AAC_QUEUE_FRZN; 1279 aac_requeue_ready(cm); 1280 } 1281 1282 return; 1283} 1284 1285/* 1286 * Unmap a command from controller-visible space. 1287 */ 1288static void 1289aac_unmap_command(struct aac_command *cm) 1290{ 1291 struct aac_softc *sc; 1292 1293 debug_called(2); 1294 1295 sc = cm->cm_sc; 1296 1297 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1298 return; 1299 1300 if (cm->cm_datalen != 0) { 1301 if (cm->cm_flags & AAC_CMD_DATAIN) 1302 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1303 BUS_DMASYNC_POSTREAD); 1304 if (cm->cm_flags & AAC_CMD_DATAOUT) 1305 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1306 BUS_DMASYNC_POSTWRITE); 1307 1308 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1309 } 1310 cm->cm_flags &= ~AAC_CMD_MAPPED; 1311} 1312 1313/* 1314 * Hardware Interface 1315 */ 1316 1317/* 1318 * Initialise the adapter. 1319 */ 1320static void 1321aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1322{ 1323 struct aac_softc *sc; 1324 1325 debug_called(1); 1326 1327 sc = (struct aac_softc *)arg; 1328 1329 sc->aac_common_busaddr = segs[0].ds_addr; 1330} 1331 1332static int 1333aac_check_firmware(struct aac_softc *sc) 1334{ 1335 u_int32_t major, minor, options; 1336 1337 debug_called(1); 1338 1339 /* 1340 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1341 * firmware version 1.x are not compatible with this driver. 1342 */ 1343 if (sc->flags & AAC_FLAGS_PERC2QC) { 1344 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1345 NULL)) { 1346 device_printf(sc->aac_dev, 1347 "Error reading firmware version\n"); 1348 return (EIO); 1349 } 1350 1351 /* These numbers are stored as ASCII! */ 1352 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30; 1353 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30; 1354 if (major == 1) { 1355 device_printf(sc->aac_dev, 1356 "Firmware version %d.%d is not supported.\n", 1357 major, minor); 1358 return (EINVAL); 1359 } 1360 } 1361 1362 /* 1363 * Retrieve the capabilities/supported options word so we know what 1364 * work-arounds to enable. 1365 */ 1366 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) { 1367 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 1368 return (EIO); 1369 } 1370 options = AAC_GET_MAILBOX(sc, 1); 1371 sc->supported_options = options; 1372 1373 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 && 1374 (sc->flags & AAC_FLAGS_NO4GB) == 0) 1375 sc->flags |= AAC_FLAGS_4GB_WINDOW; 1376 if (options & AAC_SUPPORTED_NONDASD) 1377 sc->flags |= AAC_FLAGS_ENABLE_CAM; 1378 if ((options & AAC_SUPPORTED_SGMAP_HOST64) != 0 1379 && (sizeof(bus_addr_t) > 4)) { 1380 device_printf(sc->aac_dev, "Enabling 64-bit address support\n"); 1381 sc->flags |= AAC_FLAGS_SG_64BIT; 1382 } 1383 1384 /* Check for broken hardware that does a lower number of commands */ 1385 if ((sc->flags & AAC_FLAGS_256FIBS) == 0) 1386 sc->aac_max_fibs = AAC_MAX_FIBS; 1387 else 1388 sc->aac_max_fibs = 256; 1389 1390 return (0); 1391} 1392 1393static int 1394aac_init(struct aac_softc *sc) 1395{ 1396 struct aac_adapter_init *ip; 1397 time_t then; 1398 u_int32_t code, qoffset; 1399 int error; 1400 1401 debug_called(1); 1402 1403 /* 1404 * First wait for the adapter to come ready. 1405 */ 1406 then = time_second; 1407 do { 1408 code = AAC_GET_FWSTATUS(sc); 1409 if (code & AAC_SELF_TEST_FAILED) { 1410 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1411 return(ENXIO); 1412 } 1413 if (code & AAC_KERNEL_PANIC) { 1414 device_printf(sc->aac_dev, 1415 "FATAL: controller kernel panic\n"); 1416 return(ENXIO); 1417 } 1418 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1419 device_printf(sc->aac_dev, 1420 "FATAL: controller not coming ready, " 1421 "status %x\n", code); 1422 return(ENXIO); 1423 } 1424 } while (!(code & AAC_UP_AND_RUNNING)); 1425 1426 error = ENOMEM; 1427 /* 1428 * Create DMA tag for mapping buffers into controller-addressable space. 1429 */ 1430 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1431 1, 0, /* algnmnt, boundary */ 1432 (sc->flags & AAC_FLAGS_SG_64BIT) ? 1433 BUS_SPACE_MAXADDR : 1434 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1435 BUS_SPACE_MAXADDR, /* highaddr */ 1436 NULL, NULL, /* filter, filterarg */ 1437 MAXBSIZE, /* maxsize */ 1438 AAC_MAXSGENTRIES, /* nsegments */ 1439 MAXBSIZE, /* maxsegsize */ 1440 BUS_DMA_ALLOCNOW, /* flags */ 1441 busdma_lock_mutex, /* lockfunc */ 1442 &sc->aac_io_lock, /* lockfuncarg */ 1443 &sc->aac_buffer_dmat)) { 1444 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 1445 goto out; 1446 } 1447 1448 /* 1449 * Create DMA tag for mapping FIBs into controller-addressable space.. 1450 */ 1451 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1452 1, 0, /* algnmnt, boundary */ 1453 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1454 BUS_SPACE_MAXADDR_32BIT : 1455 0x7fffffff, /* lowaddr */ 1456 BUS_SPACE_MAXADDR, /* highaddr */ 1457 NULL, NULL, /* filter, filterarg */ 1458 AAC_FIB_COUNT * 1459 sizeof(struct aac_fib), /* maxsize */ 1460 1, /* nsegments */ 1461 AAC_FIB_COUNT * 1462 sizeof(struct aac_fib), /* maxsegsize */ 1463 BUS_DMA_ALLOCNOW, /* flags */ 1464 NULL, NULL, /* No locking needed */ 1465 &sc->aac_fib_dmat)) { 1466 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");; 1467 goto out; 1468 } 1469 1470 /* 1471 * Create DMA tag for the common structure and allocate it. 1472 */ 1473 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1474 1, 0, /* algnmnt, boundary */ 1475 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1476 BUS_SPACE_MAXADDR_32BIT : 1477 0x7fffffff, /* lowaddr */ 1478 BUS_SPACE_MAXADDR, /* highaddr */ 1479 NULL, NULL, /* filter, filterarg */ 1480 8192 + sizeof(struct aac_common), /* maxsize */ 1481 1, /* nsegments */ 1482 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1483 BUS_DMA_ALLOCNOW, /* flags */ 1484 NULL, NULL, /* No locking needed */ 1485 &sc->aac_common_dmat)) { 1486 device_printf(sc->aac_dev, 1487 "can't allocate common structure DMA tag\n"); 1488 goto out; 1489 } 1490 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1491 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1492 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1493 goto out; 1494 } 1495 1496 /* 1497 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1498 * below address 8192 in physical memory. 1499 * XXX If the padding is not needed, can it be put to use instead 1500 * of ignored? 1501 */ 1502 (void)bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1503 sc->aac_common, 8192 + sizeof(*sc->aac_common), 1504 aac_common_map, sc, 0); 1505 1506 if (sc->aac_common_busaddr < 8192) { 1507 (uint8_t *)sc->aac_common += 8192; 1508 sc->aac_common_busaddr += 8192; 1509 } 1510 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1511 1512 /* Allocate some FIBs and associated command structs */ 1513 TAILQ_INIT(&sc->aac_fibmap_tqh); 1514 sc->aac_commands = malloc(AAC_MAX_FIBS * sizeof(struct aac_command), 1515 M_AACBUF, M_WAITOK|M_ZERO); 1516 while (sc->total_fibs < AAC_PREALLOCATE_FIBS) { 1517 if (aac_alloc_commands(sc) != 0) 1518 break; 1519 } 1520 if (sc->total_fibs == 0) 1521 goto out; 1522 1523 /* 1524 * Fill in the init structure. This tells the adapter about the 1525 * physical location of various important shared data structures. 1526 */ 1527 ip = &sc->aac_common->ac_init; 1528 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1529 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1530 1531 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1532 offsetof(struct aac_common, ac_fibs); 1533 ip->AdapterFibsVirtualAddress = 0; 1534 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1535 ip->AdapterFibAlign = sizeof(struct aac_fib); 1536 1537 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1538 offsetof(struct aac_common, ac_printf); 1539 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1540 1541 /* 1542 * The adapter assumes that pages are 4K in size, except on some 1543 * broken firmware versions that do the page->byte conversion twice, 1544 * therefore 'assuming' that this value is in 16MB units (2^24). 1545 * Round up since the granularity is so high. 1546 */ 1547 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1548 if (sc->flags & AAC_FLAGS_BROKEN_MEMMAP) { 1549 ip->HostPhysMemPages = 1550 (ip->HostPhysMemPages + AAC_PAGE_SIZE) / AAC_PAGE_SIZE; 1551 } 1552 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1553 1554 /* 1555 * Initialise FIB queues. Note that it appears that the layout of the 1556 * indexes and the segmentation of the entries may be mandated by the 1557 * adapter, which is only told about the base of the queue index fields. 1558 * 1559 * The initial values of the indices are assumed to inform the adapter 1560 * of the sizes of the respective queues, and theoretically it could 1561 * work out the entire layout of the queue structures from this. We 1562 * take the easy route and just lay this area out like everyone else 1563 * does. 1564 * 1565 * The Linux driver uses a much more complex scheme whereby several 1566 * header records are kept for each queue. We use a couple of generic 1567 * list manipulation functions which 'know' the size of each list by 1568 * virtue of a table. 1569 */ 1570 qoffset = offsetof(struct aac_common, ac_qbuf) + AAC_QUEUE_ALIGN; 1571 qoffset &= ~(AAC_QUEUE_ALIGN - 1); 1572 sc->aac_queues = 1573 (struct aac_queue_table *)((uintptr_t)sc->aac_common + qoffset); 1574 ip->CommHeaderAddress = sc->aac_common_busaddr + qoffset; 1575 1576 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1577 AAC_HOST_NORM_CMD_ENTRIES; 1578 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1579 AAC_HOST_NORM_CMD_ENTRIES; 1580 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1581 AAC_HOST_HIGH_CMD_ENTRIES; 1582 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1583 AAC_HOST_HIGH_CMD_ENTRIES; 1584 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1585 AAC_ADAP_NORM_CMD_ENTRIES; 1586 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1587 AAC_ADAP_NORM_CMD_ENTRIES; 1588 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1589 AAC_ADAP_HIGH_CMD_ENTRIES; 1590 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1591 AAC_ADAP_HIGH_CMD_ENTRIES; 1592 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1593 AAC_HOST_NORM_RESP_ENTRIES; 1594 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1595 AAC_HOST_NORM_RESP_ENTRIES; 1596 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1597 AAC_HOST_HIGH_RESP_ENTRIES; 1598 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1599 AAC_HOST_HIGH_RESP_ENTRIES; 1600 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1601 AAC_ADAP_NORM_RESP_ENTRIES; 1602 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1603 AAC_ADAP_NORM_RESP_ENTRIES; 1604 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1605 AAC_ADAP_HIGH_RESP_ENTRIES; 1606 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1607 AAC_ADAP_HIGH_RESP_ENTRIES; 1608 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1609 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1610 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1611 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1612 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1613 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1614 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1615 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1616 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1617 &sc->aac_queues->qt_HostNormRespQueue[0]; 1618 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1619 &sc->aac_queues->qt_HostHighRespQueue[0]; 1620 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1621 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1622 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1623 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1624 1625 /* 1626 * Do controller-type-specific initialisation 1627 */ 1628 switch (sc->aac_hwif) { 1629 case AAC_HWIF_I960RX: 1630 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1631 break; 1632 } 1633 1634 /* 1635 * Give the init structure to the controller. 1636 */ 1637 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1638 sc->aac_common_busaddr + 1639 offsetof(struct aac_common, ac_init), 0, 0, 0, 1640 NULL)) { 1641 device_printf(sc->aac_dev, 1642 "error establishing init structure\n"); 1643 error = EIO; 1644 goto out; 1645 } 1646 1647 error = 0; 1648out: 1649 return(error); 1650} 1651 1652/* 1653 * Send a synchronous command to the controller and wait for a result. 1654 */ 1655static int 1656aac_sync_command(struct aac_softc *sc, u_int32_t command, 1657 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1658 u_int32_t *sp) 1659{ 1660 time_t then; 1661 u_int32_t status; 1662 1663 debug_called(3); 1664 1665 /* populate the mailbox */ 1666 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1667 1668 /* ensure the sync command doorbell flag is cleared */ 1669 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1670 1671 /* then set it to signal the adapter */ 1672 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1673 1674 /* spin waiting for the command to complete */ 1675 then = time_second; 1676 do { 1677 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1678 debug(1, "timed out"); 1679 return(EIO); 1680 } 1681 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1682 1683 /* clear the completion flag */ 1684 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1685 1686 /* get the command status */ 1687 status = AAC_GET_MAILBOX(sc, 0); 1688 if (sp != NULL) 1689 *sp = status; 1690 return(0); 1691} 1692 1693/* 1694 * Grab the sync fib area. 1695 */ 1696int 1697aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1698{ 1699 1700 /* 1701 * If the force flag is set, the system is shutting down, or in 1702 * trouble. Ignore the mutex. 1703 */ 1704 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1705 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1706 1707 *fib = &sc->aac_common->ac_sync_fib; 1708 1709 return (1); 1710} 1711 1712/* 1713 * Release the sync fib area. 1714 */ 1715void 1716aac_release_sync_fib(struct aac_softc *sc) 1717{ 1718 1719 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1720} 1721 1722/* 1723 * Send a synchronous FIB to the controller and wait for a result. 1724 */ 1725int 1726aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1727 struct aac_fib *fib, u_int16_t datasize) 1728{ 1729 debug_called(3); 1730 1731 if (datasize > AAC_FIB_DATASIZE) 1732 return(EINVAL); 1733 1734 /* 1735 * Set up the sync FIB 1736 */ 1737 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1738 AAC_FIBSTATE_INITIALISED | 1739 AAC_FIBSTATE_EMPTY; 1740 fib->Header.XferState |= xferstate; 1741 fib->Header.Command = command; 1742 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1743 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1744 fib->Header.SenderSize = sizeof(struct aac_fib); 1745 fib->Header.SenderFibAddress = 0; /* Not needed */ 1746 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1747 offsetof(struct aac_common, 1748 ac_sync_fib); 1749 1750 /* 1751 * Give the FIB to the controller, wait for a response. 1752 */ 1753 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1754 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1755 debug(2, "IO error"); 1756 return(EIO); 1757 } 1758 1759 return (0); 1760} 1761 1762/* 1763 * Adapter-space FIB queue manipulation 1764 * 1765 * Note that the queue implementation here is a little funky; neither the PI or 1766 * CI will ever be zero. This behaviour is a controller feature. 1767 */ 1768static struct { 1769 int size; 1770 int notify; 1771} aac_qinfo[] = { 1772 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1773 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1774 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1775 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1776 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1777 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1778 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1779 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1780}; 1781 1782/* 1783 * Atomically insert an entry into the nominated queue, returns 0 on success or 1784 * EBUSY if the queue is full. 1785 * 1786 * Note: it would be more efficient to defer notifying the controller in 1787 * the case where we may be inserting several entries in rapid succession, 1788 * but implementing this usefully may be difficult (it would involve a 1789 * separate queue/notify interface). 1790 */ 1791static int 1792aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1793{ 1794 u_int32_t pi, ci; 1795 int error; 1796 u_int32_t fib_size; 1797 u_int32_t fib_addr; 1798 1799 debug_called(3); 1800 1801 fib_size = cm->cm_fib->Header.Size; 1802 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1803 1804 /* get the producer/consumer indices */ 1805 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1806 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1807 1808 /* wrap the queue? */ 1809 if (pi >= aac_qinfo[queue].size) 1810 pi = 0; 1811 1812 /* check for queue full */ 1813 if ((pi + 1) == ci) { 1814 error = EBUSY; 1815 goto out; 1816 } 1817 1818 /* populate queue entry */ 1819 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1820 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1821 1822 /* update producer index */ 1823 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1824 1825 /* 1826 * To avoid a race with its completion interrupt, place this command on 1827 * the busy queue prior to advertising it to the controller. 1828 */ 1829 aac_enqueue_busy(cm); 1830 1831 /* notify the adapter if we know how */ 1832 if (aac_qinfo[queue].notify != 0) 1833 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1834 1835 error = 0; 1836 1837out: 1838 return(error); 1839} 1840 1841/* 1842 * Atomically remove one entry from the nominated queue, returns 0 on 1843 * success or ENOENT if the queue is empty. 1844 */ 1845static int 1846aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1847 struct aac_fib **fib_addr) 1848{ 1849 u_int32_t pi, ci; 1850 u_int32_t fib_index; 1851 int error; 1852 int notify; 1853 1854 debug_called(3); 1855 1856 /* get the producer/consumer indices */ 1857 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1858 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1859 1860 /* check for queue empty */ 1861 if (ci == pi) { 1862 error = ENOENT; 1863 goto out; 1864 } 1865 1866 /* wrap the pi so the following test works */ 1867 if (pi >= aac_qinfo[queue].size) 1868 pi = 0; 1869 1870 notify = 0; 1871 if (ci == pi + 1) 1872 notify++; 1873 1874 /* wrap the queue? */ 1875 if (ci >= aac_qinfo[queue].size) 1876 ci = 0; 1877 1878 /* fetch the entry */ 1879 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1880 1881 switch (queue) { 1882 case AAC_HOST_NORM_CMD_QUEUE: 1883 case AAC_HOST_HIGH_CMD_QUEUE: 1884 /* 1885 * The aq_fib_addr is only 32 bits wide so it can't be counted 1886 * on to hold an address. For AIF's, the adapter assumes 1887 * that it's giving us an address into the array of AIF fibs. 1888 * Therefore, we have to convert it to an index. 1889 */ 1890 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr / 1891 sizeof(struct aac_fib); 1892 *fib_addr = &sc->aac_common->ac_fibs[fib_index]; 1893 break; 1894 1895 case AAC_HOST_NORM_RESP_QUEUE: 1896 case AAC_HOST_HIGH_RESP_QUEUE: 1897 { 1898 struct aac_command *cm; 1899 1900 /* 1901 * As above, an index is used instead of an actual address. 1902 * Gotta shift the index to account for the fast response 1903 * bit. No other correction is needed since this value was 1904 * originally provided by the driver via the SenderFibAddress 1905 * field. 1906 */ 1907 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr; 1908 cm = sc->aac_commands + (fib_index >> 1); 1909 *fib_addr = cm->cm_fib; 1910 1911 /* 1912 * Is this a fast response? If it is, update the fib fields in 1913 * local memory since the whole fib isn't DMA'd back up. 1914 */ 1915 if (fib_index & 0x01) { 1916 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1917 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1918 } 1919 break; 1920 } 1921 default: 1922 panic("Invalid queue in aac_dequeue_fib()"); 1923 break; 1924 } 1925 1926 /* update consumer index */ 1927 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1928 1929 /* if we have made the queue un-full, notify the adapter */ 1930 if (notify && (aac_qinfo[queue].notify != 0)) 1931 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1932 error = 0; 1933 1934out: 1935 return(error); 1936} 1937 1938/* 1939 * Put our response to an Adapter Initialed Fib on the response queue 1940 */ 1941static int 1942aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1943{ 1944 u_int32_t pi, ci; 1945 int error; 1946 u_int32_t fib_size; 1947 u_int32_t fib_addr; 1948 1949 debug_called(1); 1950 1951 /* Tell the adapter where the FIB is */ 1952 fib_size = fib->Header.Size; 1953 fib_addr = fib->Header.SenderFibAddress; 1954 fib->Header.ReceiverFibAddress = fib_addr; 1955 1956 /* get the producer/consumer indices */ 1957 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1958 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1959 1960 /* wrap the queue? */ 1961 if (pi >= aac_qinfo[queue].size) 1962 pi = 0; 1963 1964 /* check for queue full */ 1965 if ((pi + 1) == ci) { 1966 error = EBUSY; 1967 goto out; 1968 } 1969 1970 /* populate queue entry */ 1971 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1972 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1973 1974 /* update producer index */ 1975 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1976 1977 /* notify the adapter if we know how */ 1978 if (aac_qinfo[queue].notify != 0) 1979 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1980 1981 error = 0; 1982 1983out: 1984 return(error); 1985} 1986 1987/* 1988 * Check for commands that have been outstanding for a suspiciously long time, 1989 * and complain about them. 1990 */ 1991static void 1992aac_timeout(struct aac_softc *sc) 1993{ 1994 struct aac_command *cm; 1995 time_t deadline; 1996 1997 /* 1998 * Traverse the busy command list, bitch about late commands once 1999 * only. 2000 */ 2001 deadline = time_second - AAC_CMD_TIMEOUT; 2002 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 2003 if ((cm->cm_timestamp < deadline) 2004 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 2005 cm->cm_flags |= AAC_CMD_TIMEDOUT; 2006 device_printf(sc->aac_dev, 2007 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 2008 cm, (int)(time_second-cm->cm_timestamp)); 2009 AAC_PRINT_FIB(sc, cm->cm_fib); 2010 } 2011 } 2012 2013 return; 2014} 2015 2016/* 2017 * Interface Function Vectors 2018 */ 2019 2020/* 2021 * Read the current firmware status word. 2022 */ 2023static int 2024aac_sa_get_fwstatus(struct aac_softc *sc) 2025{ 2026 debug_called(3); 2027 2028 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 2029} 2030 2031static int 2032aac_rx_get_fwstatus(struct aac_softc *sc) 2033{ 2034 debug_called(3); 2035 2036 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2037} 2038 2039static int 2040aac_fa_get_fwstatus(struct aac_softc *sc) 2041{ 2042 int val; 2043 2044 debug_called(3); 2045 2046 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2047 return (val); 2048} 2049 2050/* 2051 * Notify the controller of a change in a given queue 2052 */ 2053 2054static void 2055aac_sa_qnotify(struct aac_softc *sc, int qbit) 2056{ 2057 debug_called(3); 2058 2059 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2060} 2061 2062static void 2063aac_rx_qnotify(struct aac_softc *sc, int qbit) 2064{ 2065 debug_called(3); 2066 2067 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2068} 2069 2070static void 2071aac_fa_qnotify(struct aac_softc *sc, int qbit) 2072{ 2073 debug_called(3); 2074 2075 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2076 AAC_FA_HACK(sc); 2077} 2078 2079/* 2080 * Get the interrupt reason bits 2081 */ 2082static int 2083aac_sa_get_istatus(struct aac_softc *sc) 2084{ 2085 debug_called(3); 2086 2087 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2088} 2089 2090static int 2091aac_rx_get_istatus(struct aac_softc *sc) 2092{ 2093 debug_called(3); 2094 2095 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2096} 2097 2098static int 2099aac_fa_get_istatus(struct aac_softc *sc) 2100{ 2101 int val; 2102 2103 debug_called(3); 2104 2105 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2106 return (val); 2107} 2108 2109/* 2110 * Clear some interrupt reason bits 2111 */ 2112static void 2113aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2114{ 2115 debug_called(3); 2116 2117 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2118} 2119 2120static void 2121aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2122{ 2123 debug_called(3); 2124 2125 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2126} 2127 2128static void 2129aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2130{ 2131 debug_called(3); 2132 2133 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2134 AAC_FA_HACK(sc); 2135} 2136 2137/* 2138 * Populate the mailbox and set the command word 2139 */ 2140static void 2141aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2142 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2143{ 2144 debug_called(4); 2145 2146 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2147 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2148 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2149 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2150 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2151} 2152 2153static void 2154aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2155 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2156{ 2157 debug_called(4); 2158 2159 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2160 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2161 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2162 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2163 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2164} 2165 2166static void 2167aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2168 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2169{ 2170 debug_called(4); 2171 2172 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2173 AAC_FA_HACK(sc); 2174 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2175 AAC_FA_HACK(sc); 2176 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2177 AAC_FA_HACK(sc); 2178 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2179 AAC_FA_HACK(sc); 2180 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2181 AAC_FA_HACK(sc); 2182} 2183 2184/* 2185 * Fetch the immediate command status word 2186 */ 2187static int 2188aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2189{ 2190 debug_called(4); 2191 2192 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2193} 2194 2195static int 2196aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2197{ 2198 debug_called(4); 2199 2200 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2201} 2202 2203static int 2204aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2205{ 2206 int val; 2207 2208 debug_called(4); 2209 2210 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2211 return (val); 2212} 2213 2214/* 2215 * Set/clear interrupt masks 2216 */ 2217static void 2218aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2219{ 2220 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2221 2222 if (enable) { 2223 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2224 } else { 2225 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2226 } 2227} 2228 2229static void 2230aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2231{ 2232 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2233 2234 if (enable) { 2235 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2236 } else { 2237 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2238 } 2239} 2240 2241static void 2242aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2243{ 2244 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2245 2246 if (enable) { 2247 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2248 AAC_FA_HACK(sc); 2249 } else { 2250 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2251 AAC_FA_HACK(sc); 2252 } 2253} 2254 2255/* 2256 * Debugging and Diagnostics 2257 */ 2258 2259/* 2260 * Print some information about the controller. 2261 */ 2262static void 2263aac_describe_controller(struct aac_softc *sc) 2264{ 2265 struct aac_fib *fib; 2266 struct aac_adapter_info *info; 2267 2268 debug_called(2); 2269 2270 aac_alloc_sync_fib(sc, &fib, 0); 2271 2272 fib->data[0] = 0; 2273 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2274 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2275 aac_release_sync_fib(sc); 2276 return; 2277 } 2278 info = (struct aac_adapter_info *)&fib->data[0]; 2279 2280 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2281 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2282 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2283 aac_describe_code(aac_battery_platform, 2284 info->batteryPlatform)); 2285 2286 /* save the kernel revision structure for later use */ 2287 sc->aac_revision = info->KernelRevision; 2288 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2289 info->KernelRevision.external.comp.major, 2290 info->KernelRevision.external.comp.minor, 2291 info->KernelRevision.external.comp.dash, 2292 info->KernelRevision.buildNumber, 2293 (u_int32_t)(info->SerialNumber & 0xffffff)); 2294 2295 aac_release_sync_fib(sc); 2296 2297 if (1 || bootverbose) { 2298 device_printf(sc->aac_dev, "Supported Options=%b\n", 2299 sc->supported_options, 2300 "\20" 2301 "\1SNAPSHOT" 2302 "\2CLUSTERS" 2303 "\3WCACHE" 2304 "\4DATA64" 2305 "\5HOSTTIME" 2306 "\6RAID50" 2307 "\7WINDOW4GB" 2308 "\10SCSIUPGD" 2309 "\11SOFTERR" 2310 "\12NORECOND" 2311 "\13SGMAP64" 2312 "\14ALARM" 2313 "\15NONDASD"); 2314 } 2315} 2316 2317/* 2318 * Look up a text description of a numeric error code and return a pointer to 2319 * same. 2320 */ 2321static char * 2322aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2323{ 2324 int i; 2325 2326 for (i = 0; table[i].string != NULL; i++) 2327 if (table[i].code == code) 2328 return(table[i].string); 2329 return(table[i + 1].string); 2330} 2331 2332/* 2333 * Management Interface 2334 */ 2335 2336static int 2337aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2338{ 2339 struct aac_softc *sc; 2340 2341 debug_called(2); 2342 2343 sc = dev->si_drv1; 2344 2345 /* Check to make sure the device isn't already open */ 2346 if (sc->aac_state & AAC_STATE_OPEN) { 2347 return EBUSY; 2348 } 2349 sc->aac_state |= AAC_STATE_OPEN; 2350 2351 return 0; 2352} 2353 2354static int 2355aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2356{ 2357 struct aac_softc *sc; 2358 2359 debug_called(2); 2360 2361 sc = dev->si_drv1; 2362 2363 /* Mark this unit as no longer open */ 2364 sc->aac_state &= ~AAC_STATE_OPEN; 2365 2366 return 0; 2367} 2368 2369static int 2370aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2371{ 2372 union aac_statrequest *as; 2373 struct aac_softc *sc; 2374 int error = 0; 2375 uint32_t cookie; 2376 2377 debug_called(2); 2378 2379 as = (union aac_statrequest *)arg; 2380 sc = dev->si_drv1; 2381 2382 switch (cmd) { 2383 case AACIO_STATS: 2384 switch (as->as_item) { 2385 case AACQ_FREE: 2386 case AACQ_BIO: 2387 case AACQ_READY: 2388 case AACQ_BUSY: 2389 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2390 sizeof(struct aac_qstat)); 2391 break; 2392 default: 2393 error = ENOENT; 2394 break; 2395 } 2396 break; 2397 2398 case FSACTL_SENDFIB: 2399 arg = *(caddr_t*)arg; 2400 case FSACTL_LNX_SENDFIB: 2401 debug(1, "FSACTL_SENDFIB"); 2402 error = aac_ioctl_sendfib(sc, arg); 2403 break; 2404 case FSACTL_AIF_THREAD: 2405 case FSACTL_LNX_AIF_THREAD: 2406 debug(1, "FSACTL_AIF_THREAD"); 2407 error = EINVAL; 2408 break; 2409 case FSACTL_OPEN_GET_ADAPTER_FIB: 2410 arg = *(caddr_t*)arg; 2411 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2412 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2413 /* 2414 * Pass the caller out an AdapterFibContext. 2415 * 2416 * Note that because we only support one opener, we 2417 * basically ignore this. Set the caller's context to a magic 2418 * number just in case. 2419 * 2420 * The Linux code hands the driver a pointer into kernel space, 2421 * and then trusts it when the caller hands it back. Aiee! 2422 * Here, we give it the proc pointer of the per-adapter aif 2423 * thread. It's only used as a sanity check in other calls. 2424 */ 2425 cookie = (uint32_t)(uintptr_t)sc->aifthread; 2426 error = copyout(&cookie, arg, sizeof(cookie)); 2427 break; 2428 case FSACTL_GET_NEXT_ADAPTER_FIB: 2429 arg = *(caddr_t*)arg; 2430 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2431 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2432 error = aac_getnext_aif(sc, arg); 2433 break; 2434 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2435 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2436 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2437 /* don't do anything here */ 2438 break; 2439 case FSACTL_MINIPORT_REV_CHECK: 2440 arg = *(caddr_t*)arg; 2441 case FSACTL_LNX_MINIPORT_REV_CHECK: 2442 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2443 error = aac_rev_check(sc, arg); 2444 break; 2445 case FSACTL_QUERY_DISK: 2446 arg = *(caddr_t*)arg; 2447 case FSACTL_LNX_QUERY_DISK: 2448 debug(1, "FSACTL_QUERY_DISK"); 2449 error = aac_query_disk(sc, arg); 2450 break; 2451 case FSACTL_DELETE_DISK: 2452 case FSACTL_LNX_DELETE_DISK: 2453 /* 2454 * We don't trust the underland to tell us when to delete a 2455 * container, rather we rely on an AIF coming from the 2456 * controller 2457 */ 2458 error = 0; 2459 break; 2460 default: 2461 debug(1, "unsupported cmd 0x%lx\n", cmd); 2462 error = EINVAL; 2463 break; 2464 } 2465 return(error); 2466} 2467 2468static int 2469aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2470{ 2471 struct aac_softc *sc; 2472 int revents; 2473 2474 sc = dev->si_drv1; 2475 revents = 0; 2476 2477 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2478 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2479 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2480 revents |= poll_events & (POLLIN | POLLRDNORM); 2481 } 2482 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2483 2484 if (revents == 0) { 2485 if (poll_events & (POLLIN | POLLRDNORM)) 2486 selrecord(td, &sc->rcv_select); 2487 } 2488 2489 return (revents); 2490} 2491 2492/* 2493 * Send a FIB supplied from userspace 2494 */ 2495static int 2496aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2497{ 2498 struct aac_command *cm; 2499 int size, error; 2500 2501 debug_called(2); 2502 2503 cm = NULL; 2504 2505 /* 2506 * Get a command 2507 */ 2508 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 2509 if (aac_alloc_command(sc, &cm)) { 2510 error = EBUSY; 2511 goto out; 2512 } 2513 2514 /* 2515 * Fetch the FIB header, then re-copy to get data as well. 2516 */ 2517 if ((error = copyin(ufib, cm->cm_fib, 2518 sizeof(struct aac_fib_header))) != 0) 2519 goto out; 2520 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2521 if (size > sizeof(struct aac_fib)) { 2522 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %zd)\n", 2523 size, sizeof(struct aac_fib)); 2524 size = sizeof(struct aac_fib); 2525 } 2526 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2527 goto out; 2528 cm->cm_fib->Header.Size = size; 2529 cm->cm_timestamp = time_second; 2530 2531 /* 2532 * Pass the FIB to the controller, wait for it to complete. 2533 */ 2534 if ((error = aac_wait_command(cm)) != 0) { 2535 device_printf(sc->aac_dev, 2536 "aac_wait_command return %d\n", error); 2537 goto out; 2538 } 2539 2540 /* 2541 * Copy the FIB and data back out to the caller. 2542 */ 2543 size = cm->cm_fib->Header.Size; 2544 if (size > sizeof(struct aac_fib)) { 2545 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %zd)\n", 2546 size, sizeof(struct aac_fib)); 2547 size = sizeof(struct aac_fib); 2548 } 2549 error = copyout(cm->cm_fib, ufib, size); 2550 2551out: 2552 if (cm != NULL) { 2553 aac_release_command(cm); 2554 } 2555 2556 AAC_LOCK_RELEASE(&sc->aac_io_lock); 2557 return(error); 2558} 2559 2560/* 2561 * Handle an AIF sent to us by the controller; queue it for later reference. 2562 * If the queue fills up, then drop the older entries. 2563 */ 2564static void 2565aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2566{ 2567 struct aac_aif_command *aif; 2568 struct aac_container *co, *co_next; 2569 struct aac_mntinfo *mi; 2570 struct aac_mntinforesp *mir = NULL; 2571 u_int16_t rsize; 2572 int next, found; 2573 int count = 0, added = 0, i = 0; 2574 2575 debug_called(2); 2576 2577 aif = (struct aac_aif_command*)&fib->data[0]; 2578 aac_print_aif(sc, aif); 2579 2580 /* Is it an event that we should care about? */ 2581 switch (aif->command) { 2582 case AifCmdEventNotify: 2583 switch (aif->data.EN.type) { 2584 case AifEnAddContainer: 2585 case AifEnDeleteContainer: 2586 /* 2587 * A container was added or deleted, but the message 2588 * doesn't tell us anything else! Re-enumerate the 2589 * containers and sort things out. 2590 */ 2591 aac_alloc_sync_fib(sc, &fib, 0); 2592 mi = (struct aac_mntinfo *)&fib->data[0]; 2593 do { 2594 /* 2595 * Ask the controller for its containers one at 2596 * a time. 2597 * XXX What if the controller's list changes 2598 * midway through this enumaration? 2599 * XXX This should be done async. 2600 */ 2601 bzero(mi, sizeof(struct aac_mntinfo)); 2602 mi->Command = VM_NameServe; 2603 mi->MntType = FT_FILESYS; 2604 mi->MntCount = i; 2605 rsize = sizeof(mir); 2606 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2607 sizeof(struct aac_mntinfo))) { 2608 printf("Error probing container %d\n", 2609 i); 2610 continue; 2611 } 2612 mir = (struct aac_mntinforesp *)&fib->data[0]; 2613 /* XXX Need to check if count changed */ 2614 count = mir->MntRespCount; 2615 /* 2616 * Check the container against our list. 2617 * co->co_found was already set to 0 in a 2618 * previous run. 2619 */ 2620 if ((mir->Status == ST_OK) && 2621 (mir->MntTable[0].VolType != CT_NONE)) { 2622 found = 0; 2623 TAILQ_FOREACH(co, 2624 &sc->aac_container_tqh, 2625 co_link) { 2626 if (co->co_mntobj.ObjectId == 2627 mir->MntTable[0].ObjectId) { 2628 co->co_found = 1; 2629 found = 1; 2630 break; 2631 } 2632 } 2633 /* 2634 * If the container matched, continue 2635 * in the list. 2636 */ 2637 if (found) { 2638 i++; 2639 continue; 2640 } 2641 2642 /* 2643 * This is a new container. Do all the 2644 * appropriate things to set it up. 2645 */ 2646 aac_add_container(sc, mir, 1); 2647 added = 1; 2648 } 2649 i++; 2650 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 2651 aac_release_sync_fib(sc); 2652 2653 /* 2654 * Go through our list of containers and see which ones 2655 * were not marked 'found'. Since the controller didn't 2656 * list them they must have been deleted. Do the 2657 * appropriate steps to destroy the device. Also reset 2658 * the co->co_found field. 2659 */ 2660 co = TAILQ_FIRST(&sc->aac_container_tqh); 2661 while (co != NULL) { 2662 if (co->co_found == 0) { 2663 device_delete_child(sc->aac_dev, 2664 co->co_disk); 2665 co_next = TAILQ_NEXT(co, co_link); 2666 AAC_LOCK_ACQUIRE(&sc-> 2667 aac_container_lock); 2668 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2669 co_link); 2670 AAC_LOCK_RELEASE(&sc-> 2671 aac_container_lock); 2672 FREE(co, M_AACBUF); 2673 co = co_next; 2674 } else { 2675 co->co_found = 0; 2676 co = TAILQ_NEXT(co, co_link); 2677 } 2678 } 2679 2680 /* Attach the newly created containers */ 2681 if (added) 2682 bus_generic_attach(sc->aac_dev); 2683 2684 break; 2685 2686 default: 2687 break; 2688 } 2689 2690 default: 2691 break; 2692 } 2693 2694 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2695 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2696 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2697 if (next != sc->aac_aifq_tail) { 2698 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2699 sc->aac_aifq_head = next; 2700 2701 /* On the off chance that someone is sleeping for an aif... */ 2702 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2703 wakeup(sc->aac_aifq); 2704 /* Wakeup any poll()ers */ 2705 selwakeuppri(&sc->rcv_select, PRIBIO); 2706 } 2707 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2708 2709 return; 2710} 2711 2712/* 2713 * Return the Revision of the driver to userspace and check to see if the 2714 * userspace app is possibly compatible. This is extremely bogus since 2715 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2716 * returning what the card reported. 2717 */ 2718static int 2719aac_rev_check(struct aac_softc *sc, caddr_t udata) 2720{ 2721 struct aac_rev_check rev_check; 2722 struct aac_rev_check_resp rev_check_resp; 2723 int error = 0; 2724 2725 debug_called(2); 2726 2727 /* 2728 * Copyin the revision struct from userspace 2729 */ 2730 if ((error = copyin(udata, (caddr_t)&rev_check, 2731 sizeof(struct aac_rev_check))) != 0) { 2732 return error; 2733 } 2734 2735 debug(2, "Userland revision= %d\n", 2736 rev_check.callingRevision.buildNumber); 2737 2738 /* 2739 * Doctor up the response struct. 2740 */ 2741 rev_check_resp.possiblyCompatible = 1; 2742 rev_check_resp.adapterSWRevision.external.ul = 2743 sc->aac_revision.external.ul; 2744 rev_check_resp.adapterSWRevision.buildNumber = 2745 sc->aac_revision.buildNumber; 2746 2747 return(copyout((caddr_t)&rev_check_resp, udata, 2748 sizeof(struct aac_rev_check_resp))); 2749} 2750 2751/* 2752 * Pass the caller the next AIF in their queue 2753 */ 2754static int 2755aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2756{ 2757 struct get_adapter_fib_ioctl agf; 2758 int error; 2759 2760 debug_called(2); 2761 2762 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2763 2764 /* 2765 * Check the magic number that we gave the caller. 2766 */ 2767 if (agf.AdapterFibContext != (int)(uintptr_t)sc->aifthread) { 2768 error = EFAULT; 2769 } else { 2770 error = aac_return_aif(sc, agf.AifFib); 2771 if ((error == EAGAIN) && (agf.Wait)) { 2772 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2773 while (error == EAGAIN) { 2774 error = tsleep(sc->aac_aifq, PRIBIO | 2775 PCATCH, "aacaif", 0); 2776 if (error == 0) 2777 error = aac_return_aif(sc, 2778 agf.AifFib); 2779 } 2780 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2781 } 2782 } 2783 } 2784 return(error); 2785} 2786 2787/* 2788 * Hand the next AIF off the top of the queue out to userspace. 2789 */ 2790static int 2791aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2792{ 2793 int next, error; 2794 2795 debug_called(2); 2796 2797 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2798 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2799 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2800 return (EAGAIN); 2801 } 2802 2803 next = (sc->aac_aifq_tail + 1) % AAC_AIFQ_LENGTH; 2804 error = copyout(&sc->aac_aifq[next], uptr, 2805 sizeof(struct aac_aif_command)); 2806 if (error) 2807 device_printf(sc->aac_dev, 2808 "aac_return_aif: copyout returned %d\n", error); 2809 else 2810 sc->aac_aifq_tail = next; 2811 2812 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2813 return(error); 2814} 2815 2816/* 2817 * Give the userland some information about the container. The AAC arch 2818 * expects the driver to be a SCSI passthrough type driver, so it expects 2819 * the containers to have b:t:l numbers. Fake it. 2820 */ 2821static int 2822aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2823{ 2824 struct aac_query_disk query_disk; 2825 struct aac_container *co; 2826 struct aac_disk *disk; 2827 int error, id; 2828 2829 debug_called(2); 2830 2831 disk = NULL; 2832 2833 error = copyin(uptr, (caddr_t)&query_disk, 2834 sizeof(struct aac_query_disk)); 2835 if (error) 2836 return (error); 2837 2838 id = query_disk.ContainerNumber; 2839 if (id == -1) 2840 return (EINVAL); 2841 2842 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2843 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2844 if (co->co_mntobj.ObjectId == id) 2845 break; 2846 } 2847 2848 if (co == NULL) { 2849 query_disk.Valid = 0; 2850 query_disk.Locked = 0; 2851 query_disk.Deleted = 1; /* XXX is this right? */ 2852 } else { 2853 disk = device_get_softc(co->co_disk); 2854 query_disk.Valid = 1; 2855 query_disk.Locked = 2856 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2857 query_disk.Deleted = 0; 2858 query_disk.Bus = device_get_unit(sc->aac_dev); 2859 query_disk.Target = disk->unit; 2860 query_disk.Lun = 0; 2861 query_disk.UnMapped = 0; 2862 sprintf(&query_disk.diskDeviceName[0], "%s%d", 2863 disk->ad_disk->d_name, disk->ad_disk->d_unit); 2864 } 2865 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2866 2867 error = copyout((caddr_t)&query_disk, uptr, 2868 sizeof(struct aac_query_disk)); 2869 2870 return (error); 2871} 2872 2873static void 2874aac_get_bus_info(struct aac_softc *sc) 2875{ 2876 struct aac_fib *fib; 2877 struct aac_ctcfg *c_cmd; 2878 struct aac_ctcfg_resp *c_resp; 2879 struct aac_vmioctl *vmi; 2880 struct aac_vmi_businf_resp *vmi_resp; 2881 struct aac_getbusinf businfo; 2882 struct aac_sim *caminf; 2883 device_t child; 2884 int i, found, error; 2885 2886 aac_alloc_sync_fib(sc, &fib, 0); 2887 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2888 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2889 2890 c_cmd->Command = VM_ContainerConfig; 2891 c_cmd->cmd = CT_GET_SCSI_METHOD; 2892 c_cmd->param = 0; 2893 2894 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2895 sizeof(struct aac_ctcfg)); 2896 if (error) { 2897 device_printf(sc->aac_dev, "Error %d sending " 2898 "VM_ContainerConfig command\n", error); 2899 aac_release_sync_fib(sc); 2900 return; 2901 } 2902 2903 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2904 if (c_resp->Status != ST_OK) { 2905 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2906 c_resp->Status); 2907 aac_release_sync_fib(sc); 2908 return; 2909 } 2910 2911 sc->scsi_method_id = c_resp->param; 2912 2913 vmi = (struct aac_vmioctl *)&fib->data[0]; 2914 bzero(vmi, sizeof(struct aac_vmioctl)); 2915 2916 vmi->Command = VM_Ioctl; 2917 vmi->ObjType = FT_DRIVE; 2918 vmi->MethId = sc->scsi_method_id; 2919 vmi->ObjId = 0; 2920 vmi->IoctlCmd = GetBusInfo; 2921 2922 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2923 sizeof(struct aac_vmioctl)); 2924 if (error) { 2925 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2926 error); 2927 aac_release_sync_fib(sc); 2928 return; 2929 } 2930 2931 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2932 if (vmi_resp->Status != ST_OK) { 2933 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2934 vmi_resp->Status); 2935 aac_release_sync_fib(sc); 2936 return; 2937 } 2938 2939 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2940 aac_release_sync_fib(sc); 2941 2942 found = 0; 2943 for (i = 0; i < businfo.BusCount; i++) { 2944 if (businfo.BusValid[i] != AAC_BUS_VALID) 2945 continue; 2946 2947 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), 2948 M_AACBUF, M_NOWAIT | M_ZERO); 2949 if (caminf == NULL) 2950 continue; 2951 2952 child = device_add_child(sc->aac_dev, "aacp", -1); 2953 if (child == NULL) { 2954 device_printf(sc->aac_dev, "device_add_child failed\n"); 2955 continue; 2956 } 2957 2958 caminf->TargetsPerBus = businfo.TargetsPerBus; 2959 caminf->BusNumber = i; 2960 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2961 caminf->aac_sc = sc; 2962 caminf->sim_dev = child; 2963 2964 device_set_ivars(child, caminf); 2965 device_set_desc(child, "SCSI Passthrough Bus"); 2966 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2967 2968 found = 1; 2969 } 2970 2971 if (found) 2972 bus_generic_attach(sc->aac_dev); 2973 2974 return; 2975} 2976