aac.c revision 133540
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 133540 2004-08-12 05:05:06Z 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 mtx_init(&sc->aac_aifq_lock, "AAC AIF lock", NULL, MTX_DEF); 240 mtx_init(&sc->aac_io_lock, "AAC I/O lock", NULL, MTX_DEF); 241 mtx_init(&sc->aac_container_lock, "AAC container lock", NULL, MTX_DEF); 242 TAILQ_INIT(&sc->aac_container_tqh); 243 244 /* Initialize the local AIF queue pointers */ 245 sc->aac_aifq_head = sc->aac_aifq_tail = AAC_AIFQ_LENGTH; 246 247 /* 248 * Initialise the adapter. 249 */ 250 if ((error = aac_init(sc)) != 0) 251 return(error); 252 253 /* 254 * Print a little information about the controller. 255 */ 256 aac_describe_controller(sc); 257 258 /* 259 * Register to probe our containers later. 260 */ 261 sc->aac_ich.ich_func = aac_startup; 262 sc->aac_ich.ich_arg = sc; 263 if (config_intrhook_establish(&sc->aac_ich) != 0) { 264 device_printf(sc->aac_dev, 265 "can't establish configuration hook\n"); 266 return(ENXIO); 267 } 268 269 /* 270 * Make the control device. 271 */ 272 unit = device_get_unit(sc->aac_dev); 273 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 274 0640, "aac%d", unit); 275 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 276 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 277 sc->aac_dev_t->si_drv1 = sc; 278 279 /* Create the AIF thread */ 280 if (kthread_create((void(*)(void *))aac_command_thread, sc, 281 &sc->aifthread, 0, 0, "aac%daif", unit)) 282 panic("Could not create AIF thread\n"); 283 284 /* Register the shutdown method to only be called post-dump */ 285 if ((sc->eh = EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, 286 sc->aac_dev, SHUTDOWN_PRI_DEFAULT)) == NULL) 287 device_printf(sc->aac_dev, 288 "shutdown event registration failed\n"); 289 290 /* Register with CAM for the non-DASD devices */ 291 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0) { 292 TAILQ_INIT(&sc->aac_sim_tqh); 293 aac_get_bus_info(sc); 294 } 295 296 return(0); 297} 298 299/* 300 * Probe for containers, create disks. 301 */ 302static void 303aac_startup(void *arg) 304{ 305 struct aac_softc *sc; 306 struct aac_fib *fib; 307 struct aac_mntinfo *mi; 308 struct aac_mntinforesp *mir = NULL; 309 int count = 0, i = 0; 310 311 debug_called(1); 312 313 sc = (struct aac_softc *)arg; 314 315 /* disconnect ourselves from the intrhook chain */ 316 config_intrhook_disestablish(&sc->aac_ich); 317 318 aac_alloc_sync_fib(sc, &fib); 319 mi = (struct aac_mntinfo *)&fib->data[0]; 320 321 /* loop over possible containers */ 322 do { 323 /* request information on this container */ 324 bzero(mi, sizeof(struct aac_mntinfo)); 325 mi->Command = VM_NameServe; 326 mi->MntType = FT_FILESYS; 327 mi->MntCount = i; 328 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 329 sizeof(struct aac_mntinfo))) { 330 printf("error probing container %d", i); 331 continue; 332 } 333 334 mir = (struct aac_mntinforesp *)&fib->data[0]; 335 /* XXX Need to check if count changed */ 336 count = mir->MntRespCount; 337 aac_add_container(sc, mir, 0); 338 i++; 339 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 340 341 aac_release_sync_fib(sc); 342 343 /* poke the bus to actually attach the child devices */ 344 if (bus_generic_attach(sc->aac_dev)) 345 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 346 347 /* mark the controller up */ 348 sc->aac_state &= ~AAC_STATE_SUSPEND; 349 350 /* enable interrupts now */ 351 AAC_UNMASK_INTERRUPTS(sc); 352} 353 354/* 355 * Create a device to respresent a new container 356 */ 357static void 358aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 359{ 360 struct aac_container *co; 361 device_t child; 362 363 /* 364 * Check container volume type for validity. Note that many of 365 * the possible types may never show up. 366 */ 367 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 368 co = (struct aac_container *)malloc(sizeof *co, M_AACBUF, 369 M_NOWAIT | M_ZERO); 370 if (co == NULL) 371 panic("Out of memory?!\n"); 372 debug(1, "id %x name '%.16s' size %u type %d", 373 mir->MntTable[0].ObjectId, 374 mir->MntTable[0].FileSystemName, 375 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 376 377 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 378 device_printf(sc->aac_dev, "device_add_child failed\n"); 379 else 380 device_set_ivars(child, co); 381 device_set_desc(child, aac_describe_code(aac_container_types, 382 mir->MntTable[0].VolType)); 383 co->co_disk = child; 384 co->co_found = f; 385 bcopy(&mir->MntTable[0], &co->co_mntobj, 386 sizeof(struct aac_mntobj)); 387 mtx_lock(&sc->aac_container_lock); 388 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 389 mtx_unlock(&sc->aac_container_lock); 390 } 391} 392 393/* 394 * Free all of the resources associated with (sc) 395 * 396 * Should not be called if the controller is active. 397 */ 398void 399aac_free(struct aac_softc *sc) 400{ 401 402 debug_called(1); 403 404 /* remove the control device */ 405 if (sc->aac_dev_t != NULL) 406 destroy_dev(sc->aac_dev_t); 407 408 /* throw away any FIB buffers, discard the FIB DMA tag */ 409 aac_free_commands(sc); 410 if (sc->aac_fib_dmat) 411 bus_dma_tag_destroy(sc->aac_fib_dmat); 412 413 free(sc->aac_commands, M_AACBUF); 414 415 /* destroy the common area */ 416 if (sc->aac_common) { 417 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 418 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 419 sc->aac_common_dmamap); 420 } 421 if (sc->aac_common_dmat) 422 bus_dma_tag_destroy(sc->aac_common_dmat); 423 424 /* disconnect the interrupt handler */ 425 if (sc->aac_intr) 426 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 427 if (sc->aac_irq != NULL) 428 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 429 sc->aac_irq); 430 431 /* destroy data-transfer DMA tag */ 432 if (sc->aac_buffer_dmat) 433 bus_dma_tag_destroy(sc->aac_buffer_dmat); 434 435 /* destroy the parent DMA tag */ 436 if (sc->aac_parent_dmat) 437 bus_dma_tag_destroy(sc->aac_parent_dmat); 438 439 /* release the register window mapping */ 440 if (sc->aac_regs_resource != NULL) 441 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 442 sc->aac_regs_rid, sc->aac_regs_resource); 443} 444 445/* 446 * Disconnect from the controller completely, in preparation for unload. 447 */ 448int 449aac_detach(device_t dev) 450{ 451 struct aac_softc *sc; 452 struct aac_container *co; 453 struct aac_sim *sim; 454 int error; 455 456 debug_called(1); 457 458 sc = device_get_softc(dev); 459 460 if (sc->aac_state & AAC_STATE_OPEN) 461 return(EBUSY); 462 463 /* Remove the child containers */ 464 while ((co = TAILQ_FIRST(&sc->aac_container_tqh)) != NULL) { 465 error = device_delete_child(dev, co->co_disk); 466 if (error) 467 return (error); 468 TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link); 469 free(co, M_AACBUF); 470 } 471 472 /* Remove the CAM SIMs */ 473 while ((sim = TAILQ_FIRST(&sc->aac_sim_tqh)) != NULL) { 474 TAILQ_REMOVE(&sc->aac_sim_tqh, sim, sim_link); 475 error = device_delete_child(dev, sim->sim_dev); 476 if (error) 477 return (error); 478 free(sim, M_AACBUF); 479 } 480 481 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 482 sc->aifflags |= AAC_AIFFLAGS_EXIT; 483 wakeup(sc->aifthread); 484 tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 485 } 486 487 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 488 panic("Cannot shutdown AIF thread\n"); 489 490 if ((error = aac_shutdown(dev))) 491 return(error); 492 493 EVENTHANDLER_DEREGISTER(shutdown_final, sc->eh); 494 495 aac_free(sc); 496 497 return(0); 498} 499 500/* 501 * Bring the controller down to a dormant state and detach all child devices. 502 * 503 * This function is called before detach or system shutdown. 504 * 505 * Note that we can assume that the bioq on the controller is empty, as we won't 506 * allow shutdown if any device is open. 507 */ 508int 509aac_shutdown(device_t dev) 510{ 511 struct aac_softc *sc; 512 struct aac_fib *fib; 513 struct aac_close_command *cc; 514 515 debug_called(1); 516 517 sc = device_get_softc(dev); 518 519 sc->aac_state |= AAC_STATE_SUSPEND; 520 521 /* 522 * Send a Container shutdown followed by a HostShutdown FIB to the 523 * controller to convince it that we don't want to talk to it anymore. 524 * We've been closed and all I/O completed already 525 */ 526 device_printf(sc->aac_dev, "shutting down controller..."); 527 528 aac_alloc_sync_fib(sc, &fib); 529 cc = (struct aac_close_command *)&fib->data[0]; 530 531 bzero(cc, sizeof(struct aac_close_command)); 532 cc->Command = VM_CloseAll; 533 cc->ContainerId = 0xffffffff; 534 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 535 sizeof(struct aac_close_command))) 536 printf("FAILED.\n"); 537 else 538 printf("done\n"); 539#if 0 540 else { 541 fib->data[0] = 0; 542 /* 543 * XXX Issuing this command to the controller makes it shut down 544 * but also keeps it from coming back up without a reset of the 545 * PCI bus. This is not desirable if you are just unloading the 546 * driver module with the intent to reload it later. 547 */ 548 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 549 fib, 1)) { 550 printf("FAILED.\n"); 551 } else { 552 printf("done.\n"); 553 } 554 } 555#endif 556 557 AAC_MASK_INTERRUPTS(sc); 558 aac_release_sync_fib(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 if (error != 0) 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 mtx_lock(&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 mtx_unlock(&sc->aac_io_lock); 740 aac_alloc_commands(sc); 741 mtx_lock(&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 mtx_unlock(&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 mtx_lock(&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 mtx_unlock(&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 cm->cm_sgtable = (struct aac_sg_table *)&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 cm->cm_sgtable = (struct aac_sg_table *)&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 mtx_lock(&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 mtx_unlock(&sc->aac_io_lock); 1176 return (0); 1177 } 1178 1179 mtx_unlock(&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 sc->aac_common = (struct aac_common *) 1508 ((uint8_t *)sc->aac_common + 8192); 1509 sc->aac_common_busaddr += 8192; 1510 } 1511 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1512 1513 /* Allocate some FIBs and associated command structs */ 1514 TAILQ_INIT(&sc->aac_fibmap_tqh); 1515 sc->aac_commands = malloc(AAC_MAX_FIBS * sizeof(struct aac_command), 1516 M_AACBUF, M_WAITOK|M_ZERO); 1517 while (sc->total_fibs < AAC_PREALLOCATE_FIBS) { 1518 if (aac_alloc_commands(sc) != 0) 1519 break; 1520 } 1521 if (sc->total_fibs == 0) 1522 goto out; 1523 1524 /* 1525 * Fill in the init structure. This tells the adapter about the 1526 * physical location of various important shared data structures. 1527 */ 1528 ip = &sc->aac_common->ac_init; 1529 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1530 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1531 1532 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1533 offsetof(struct aac_common, ac_fibs); 1534 ip->AdapterFibsVirtualAddress = 0; 1535 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1536 ip->AdapterFibAlign = sizeof(struct aac_fib); 1537 1538 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1539 offsetof(struct aac_common, ac_printf); 1540 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1541 1542 /* 1543 * The adapter assumes that pages are 4K in size, except on some 1544 * broken firmware versions that do the page->byte conversion twice, 1545 * therefore 'assuming' that this value is in 16MB units (2^24). 1546 * Round up since the granularity is so high. 1547 */ 1548 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1549 if (sc->flags & AAC_FLAGS_BROKEN_MEMMAP) { 1550 ip->HostPhysMemPages = 1551 (ip->HostPhysMemPages + AAC_PAGE_SIZE) / AAC_PAGE_SIZE; 1552 } 1553 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1554 1555 /* 1556 * Initialise FIB queues. Note that it appears that the layout of the 1557 * indexes and the segmentation of the entries may be mandated by the 1558 * adapter, which is only told about the base of the queue index fields. 1559 * 1560 * The initial values of the indices are assumed to inform the adapter 1561 * of the sizes of the respective queues, and theoretically it could 1562 * work out the entire layout of the queue structures from this. We 1563 * take the easy route and just lay this area out like everyone else 1564 * does. 1565 * 1566 * The Linux driver uses a much more complex scheme whereby several 1567 * header records are kept for each queue. We use a couple of generic 1568 * list manipulation functions which 'know' the size of each list by 1569 * virtue of a table. 1570 */ 1571 qoffset = offsetof(struct aac_common, ac_qbuf) + AAC_QUEUE_ALIGN; 1572 qoffset &= ~(AAC_QUEUE_ALIGN - 1); 1573 sc->aac_queues = 1574 (struct aac_queue_table *)((uintptr_t)sc->aac_common + qoffset); 1575 ip->CommHeaderAddress = sc->aac_common_busaddr + qoffset; 1576 1577 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1578 AAC_HOST_NORM_CMD_ENTRIES; 1579 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1580 AAC_HOST_NORM_CMD_ENTRIES; 1581 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1582 AAC_HOST_HIGH_CMD_ENTRIES; 1583 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1584 AAC_HOST_HIGH_CMD_ENTRIES; 1585 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1586 AAC_ADAP_NORM_CMD_ENTRIES; 1587 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1588 AAC_ADAP_NORM_CMD_ENTRIES; 1589 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1590 AAC_ADAP_HIGH_CMD_ENTRIES; 1591 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1592 AAC_ADAP_HIGH_CMD_ENTRIES; 1593 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1594 AAC_HOST_NORM_RESP_ENTRIES; 1595 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1596 AAC_HOST_NORM_RESP_ENTRIES; 1597 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1598 AAC_HOST_HIGH_RESP_ENTRIES; 1599 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1600 AAC_HOST_HIGH_RESP_ENTRIES; 1601 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1602 AAC_ADAP_NORM_RESP_ENTRIES; 1603 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1604 AAC_ADAP_NORM_RESP_ENTRIES; 1605 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1606 AAC_ADAP_HIGH_RESP_ENTRIES; 1607 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1608 AAC_ADAP_HIGH_RESP_ENTRIES; 1609 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1610 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1611 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1612 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1613 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1614 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1615 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1616 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1617 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1618 &sc->aac_queues->qt_HostNormRespQueue[0]; 1619 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1620 &sc->aac_queues->qt_HostHighRespQueue[0]; 1621 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1622 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1623 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1624 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1625 1626 /* 1627 * Do controller-type-specific initialisation 1628 */ 1629 switch (sc->aac_hwif) { 1630 case AAC_HWIF_I960RX: 1631 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1632 break; 1633 } 1634 1635 /* 1636 * Give the init structure to the controller. 1637 */ 1638 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1639 sc->aac_common_busaddr + 1640 offsetof(struct aac_common, ac_init), 0, 0, 0, 1641 NULL)) { 1642 device_printf(sc->aac_dev, 1643 "error establishing init structure\n"); 1644 error = EIO; 1645 goto out; 1646 } 1647 1648 error = 0; 1649out: 1650 return(error); 1651} 1652 1653/* 1654 * Send a synchronous command to the controller and wait for a result. 1655 */ 1656static int 1657aac_sync_command(struct aac_softc *sc, u_int32_t command, 1658 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1659 u_int32_t *sp) 1660{ 1661 time_t then; 1662 u_int32_t status; 1663 1664 debug_called(3); 1665 1666 /* populate the mailbox */ 1667 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1668 1669 /* ensure the sync command doorbell flag is cleared */ 1670 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1671 1672 /* then set it to signal the adapter */ 1673 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1674 1675 /* spin waiting for the command to complete */ 1676 then = time_second; 1677 do { 1678 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1679 debug(1, "timed out"); 1680 return(EIO); 1681 } 1682 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1683 1684 /* clear the completion flag */ 1685 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1686 1687 /* get the command status */ 1688 status = AAC_GET_MAILBOX(sc, 0); 1689 if (sp != NULL) 1690 *sp = status; 1691 return(0); 1692} 1693 1694int 1695aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1696 struct aac_fib *fib, u_int16_t datasize) 1697{ 1698 debug_called(3); 1699 1700 if (datasize > AAC_FIB_DATASIZE) 1701 return(EINVAL); 1702 1703 /* 1704 * Set up the sync FIB 1705 */ 1706 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1707 AAC_FIBSTATE_INITIALISED | 1708 AAC_FIBSTATE_EMPTY; 1709 fib->Header.XferState |= xferstate; 1710 fib->Header.Command = command; 1711 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1712 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1713 fib->Header.SenderSize = sizeof(struct aac_fib); 1714 fib->Header.SenderFibAddress = 0; /* Not needed */ 1715 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1716 offsetof(struct aac_common, 1717 ac_sync_fib); 1718 1719 /* 1720 * Give the FIB to the controller, wait for a response. 1721 */ 1722 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1723 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1724 debug(2, "IO error"); 1725 return(EIO); 1726 } 1727 1728 return (0); 1729} 1730 1731/* 1732 * Adapter-space FIB queue manipulation 1733 * 1734 * Note that the queue implementation here is a little funky; neither the PI or 1735 * CI will ever be zero. This behaviour is a controller feature. 1736 */ 1737static struct { 1738 int size; 1739 int notify; 1740} aac_qinfo[] = { 1741 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1742 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1743 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1744 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1745 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1746 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1747 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1748 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1749}; 1750 1751/* 1752 * Atomically insert an entry into the nominated queue, returns 0 on success or 1753 * EBUSY if the queue is full. 1754 * 1755 * Note: it would be more efficient to defer notifying the controller in 1756 * the case where we may be inserting several entries in rapid succession, 1757 * but implementing this usefully may be difficult (it would involve a 1758 * separate queue/notify interface). 1759 */ 1760static int 1761aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1762{ 1763 u_int32_t pi, ci; 1764 int error; 1765 u_int32_t fib_size; 1766 u_int32_t fib_addr; 1767 1768 debug_called(3); 1769 1770 fib_size = cm->cm_fib->Header.Size; 1771 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1772 1773 /* get the producer/consumer indices */ 1774 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1775 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1776 1777 /* wrap the queue? */ 1778 if (pi >= aac_qinfo[queue].size) 1779 pi = 0; 1780 1781 /* check for queue full */ 1782 if ((pi + 1) == ci) { 1783 error = EBUSY; 1784 goto out; 1785 } 1786 1787 /* 1788 * To avoid a race with its completion interrupt, place this command on 1789 * the busy queue prior to advertising it to the controller. 1790 */ 1791 aac_enqueue_busy(cm); 1792 1793 /* populate queue entry */ 1794 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1795 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1796 1797 /* update producer index */ 1798 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1799 1800 /* notify the adapter if we know how */ 1801 if (aac_qinfo[queue].notify != 0) 1802 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1803 1804 error = 0; 1805 1806out: 1807 return(error); 1808} 1809 1810/* 1811 * Atomically remove one entry from the nominated queue, returns 0 on 1812 * success or ENOENT if the queue is empty. 1813 */ 1814static int 1815aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1816 struct aac_fib **fib_addr) 1817{ 1818 u_int32_t pi, ci; 1819 u_int32_t fib_index; 1820 int error; 1821 int notify; 1822 1823 debug_called(3); 1824 1825 /* get the producer/consumer indices */ 1826 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1827 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1828 1829 /* check for queue empty */ 1830 if (ci == pi) { 1831 error = ENOENT; 1832 goto out; 1833 } 1834 1835 /* wrap the pi so the following test works */ 1836 if (pi >= aac_qinfo[queue].size) 1837 pi = 0; 1838 1839 notify = 0; 1840 if (ci == pi + 1) 1841 notify++; 1842 1843 /* wrap the queue? */ 1844 if (ci >= aac_qinfo[queue].size) 1845 ci = 0; 1846 1847 /* fetch the entry */ 1848 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1849 1850 switch (queue) { 1851 case AAC_HOST_NORM_CMD_QUEUE: 1852 case AAC_HOST_HIGH_CMD_QUEUE: 1853 /* 1854 * The aq_fib_addr is only 32 bits wide so it can't be counted 1855 * on to hold an address. For AIF's, the adapter assumes 1856 * that it's giving us an address into the array of AIF fibs. 1857 * Therefore, we have to convert it to an index. 1858 */ 1859 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr / 1860 sizeof(struct aac_fib); 1861 *fib_addr = &sc->aac_common->ac_fibs[fib_index]; 1862 break; 1863 1864 case AAC_HOST_NORM_RESP_QUEUE: 1865 case AAC_HOST_HIGH_RESP_QUEUE: 1866 { 1867 struct aac_command *cm; 1868 1869 /* 1870 * As above, an index is used instead of an actual address. 1871 * Gotta shift the index to account for the fast response 1872 * bit. No other correction is needed since this value was 1873 * originally provided by the driver via the SenderFibAddress 1874 * field. 1875 */ 1876 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr; 1877 cm = sc->aac_commands + (fib_index >> 1); 1878 *fib_addr = cm->cm_fib; 1879 1880 /* 1881 * Is this a fast response? If it is, update the fib fields in 1882 * local memory since the whole fib isn't DMA'd back up. 1883 */ 1884 if (fib_index & 0x01) { 1885 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1886 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1887 } 1888 break; 1889 } 1890 default: 1891 panic("Invalid queue in aac_dequeue_fib()"); 1892 break; 1893 } 1894 1895 /* update consumer index */ 1896 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1897 1898 /* if we have made the queue un-full, notify the adapter */ 1899 if (notify && (aac_qinfo[queue].notify != 0)) 1900 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1901 error = 0; 1902 1903out: 1904 return(error); 1905} 1906 1907/* 1908 * Put our response to an Adapter Initialed Fib on the response queue 1909 */ 1910static int 1911aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1912{ 1913 u_int32_t pi, ci; 1914 int error; 1915 u_int32_t fib_size; 1916 u_int32_t fib_addr; 1917 1918 debug_called(1); 1919 1920 /* Tell the adapter where the FIB is */ 1921 fib_size = fib->Header.Size; 1922 fib_addr = fib->Header.SenderFibAddress; 1923 fib->Header.ReceiverFibAddress = fib_addr; 1924 1925 /* get the producer/consumer indices */ 1926 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1927 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1928 1929 /* wrap the queue? */ 1930 if (pi >= aac_qinfo[queue].size) 1931 pi = 0; 1932 1933 /* check for queue full */ 1934 if ((pi + 1) == ci) { 1935 error = EBUSY; 1936 goto out; 1937 } 1938 1939 /* populate queue entry */ 1940 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1941 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1942 1943 /* update producer index */ 1944 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1945 1946 /* notify the adapter if we know how */ 1947 if (aac_qinfo[queue].notify != 0) 1948 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1949 1950 error = 0; 1951 1952out: 1953 return(error); 1954} 1955 1956/* 1957 * Check for commands that have been outstanding for a suspiciously long time, 1958 * and complain about them. 1959 */ 1960static void 1961aac_timeout(struct aac_softc *sc) 1962{ 1963 struct aac_command *cm; 1964 time_t deadline; 1965 1966 /* 1967 * Traverse the busy command list, bitch about late commands once 1968 * only. 1969 */ 1970 deadline = time_second - AAC_CMD_TIMEOUT; 1971 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1972 if ((cm->cm_timestamp < deadline) 1973 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1974 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1975 device_printf(sc->aac_dev, 1976 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 1977 cm, (int)(time_second-cm->cm_timestamp)); 1978 AAC_PRINT_FIB(sc, cm->cm_fib); 1979 } 1980 } 1981 1982 return; 1983} 1984 1985/* 1986 * Interface Function Vectors 1987 */ 1988 1989/* 1990 * Read the current firmware status word. 1991 */ 1992static int 1993aac_sa_get_fwstatus(struct aac_softc *sc) 1994{ 1995 debug_called(3); 1996 1997 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 1998} 1999 2000static int 2001aac_rx_get_fwstatus(struct aac_softc *sc) 2002{ 2003 debug_called(3); 2004 2005 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2006} 2007 2008static int 2009aac_fa_get_fwstatus(struct aac_softc *sc) 2010{ 2011 int val; 2012 2013 debug_called(3); 2014 2015 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2016 return (val); 2017} 2018 2019/* 2020 * Notify the controller of a change in a given queue 2021 */ 2022 2023static void 2024aac_sa_qnotify(struct aac_softc *sc, int qbit) 2025{ 2026 debug_called(3); 2027 2028 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2029} 2030 2031static void 2032aac_rx_qnotify(struct aac_softc *sc, int qbit) 2033{ 2034 debug_called(3); 2035 2036 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2037} 2038 2039static void 2040aac_fa_qnotify(struct aac_softc *sc, int qbit) 2041{ 2042 debug_called(3); 2043 2044 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2045 AAC_FA_HACK(sc); 2046} 2047 2048/* 2049 * Get the interrupt reason bits 2050 */ 2051static int 2052aac_sa_get_istatus(struct aac_softc *sc) 2053{ 2054 debug_called(3); 2055 2056 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2057} 2058 2059static int 2060aac_rx_get_istatus(struct aac_softc *sc) 2061{ 2062 debug_called(3); 2063 2064 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2065} 2066 2067static int 2068aac_fa_get_istatus(struct aac_softc *sc) 2069{ 2070 int val; 2071 2072 debug_called(3); 2073 2074 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2075 return (val); 2076} 2077 2078/* 2079 * Clear some interrupt reason bits 2080 */ 2081static void 2082aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2083{ 2084 debug_called(3); 2085 2086 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2087} 2088 2089static void 2090aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2091{ 2092 debug_called(3); 2093 2094 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2095} 2096 2097static void 2098aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2099{ 2100 debug_called(3); 2101 2102 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2103 AAC_FA_HACK(sc); 2104} 2105 2106/* 2107 * Populate the mailbox and set the command word 2108 */ 2109static void 2110aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2111 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2112{ 2113 debug_called(4); 2114 2115 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2116 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2117 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2118 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2119 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2120} 2121 2122static void 2123aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2124 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2125{ 2126 debug_called(4); 2127 2128 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2129 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2130 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2131 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2132 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2133} 2134 2135static void 2136aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2137 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2138{ 2139 debug_called(4); 2140 2141 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2142 AAC_FA_HACK(sc); 2143 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2144 AAC_FA_HACK(sc); 2145 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2146 AAC_FA_HACK(sc); 2147 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2148 AAC_FA_HACK(sc); 2149 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2150 AAC_FA_HACK(sc); 2151} 2152 2153/* 2154 * Fetch the immediate command status word 2155 */ 2156static int 2157aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2158{ 2159 debug_called(4); 2160 2161 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2162} 2163 2164static int 2165aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2166{ 2167 debug_called(4); 2168 2169 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2170} 2171 2172static int 2173aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2174{ 2175 int val; 2176 2177 debug_called(4); 2178 2179 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2180 return (val); 2181} 2182 2183/* 2184 * Set/clear interrupt masks 2185 */ 2186static void 2187aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2188{ 2189 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2190 2191 if (enable) { 2192 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2193 } else { 2194 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2195 } 2196} 2197 2198static void 2199aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2200{ 2201 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2202 2203 if (enable) { 2204 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2205 } else { 2206 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2207 } 2208} 2209 2210static void 2211aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2212{ 2213 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2214 2215 if (enable) { 2216 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2217 AAC_FA_HACK(sc); 2218 } else { 2219 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2220 AAC_FA_HACK(sc); 2221 } 2222} 2223 2224/* 2225 * Debugging and Diagnostics 2226 */ 2227 2228/* 2229 * Print some information about the controller. 2230 */ 2231static void 2232aac_describe_controller(struct aac_softc *sc) 2233{ 2234 struct aac_fib *fib; 2235 struct aac_adapter_info *info; 2236 2237 debug_called(2); 2238 2239 aac_alloc_sync_fib(sc, &fib); 2240 2241 fib->data[0] = 0; 2242 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2243 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2244 aac_release_sync_fib(sc); 2245 return; 2246 } 2247 info = (struct aac_adapter_info *)&fib->data[0]; 2248 2249 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2250 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2251 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2252 aac_describe_code(aac_battery_platform, 2253 info->batteryPlatform)); 2254 2255 /* save the kernel revision structure for later use */ 2256 sc->aac_revision = info->KernelRevision; 2257 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2258 info->KernelRevision.external.comp.major, 2259 info->KernelRevision.external.comp.minor, 2260 info->KernelRevision.external.comp.dash, 2261 info->KernelRevision.buildNumber, 2262 (u_int32_t)(info->SerialNumber & 0xffffff)); 2263 2264 aac_release_sync_fib(sc); 2265 2266 if (1 || bootverbose) { 2267 device_printf(sc->aac_dev, "Supported Options=%b\n", 2268 sc->supported_options, 2269 "\20" 2270 "\1SNAPSHOT" 2271 "\2CLUSTERS" 2272 "\3WCACHE" 2273 "\4DATA64" 2274 "\5HOSTTIME" 2275 "\6RAID50" 2276 "\7WINDOW4GB" 2277 "\10SCSIUPGD" 2278 "\11SOFTERR" 2279 "\12NORECOND" 2280 "\13SGMAP64" 2281 "\14ALARM" 2282 "\15NONDASD"); 2283 } 2284} 2285 2286/* 2287 * Look up a text description of a numeric error code and return a pointer to 2288 * same. 2289 */ 2290static char * 2291aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2292{ 2293 int i; 2294 2295 for (i = 0; table[i].string != NULL; i++) 2296 if (table[i].code == code) 2297 return(table[i].string); 2298 return(table[i + 1].string); 2299} 2300 2301/* 2302 * Management Interface 2303 */ 2304 2305static int 2306aac_open(struct cdev *dev, int flags, int fmt, d_thread_t *td) 2307{ 2308 struct aac_softc *sc; 2309 2310 debug_called(2); 2311 2312 sc = dev->si_drv1; 2313 2314 /* Check to make sure the device isn't already open */ 2315 if (sc->aac_state & AAC_STATE_OPEN) { 2316 return EBUSY; 2317 } 2318 sc->aac_state |= AAC_STATE_OPEN; 2319 2320 return 0; 2321} 2322 2323static int 2324aac_close(struct cdev *dev, int flags, int fmt, d_thread_t *td) 2325{ 2326 struct aac_softc *sc; 2327 2328 debug_called(2); 2329 2330 sc = dev->si_drv1; 2331 2332 /* Mark this unit as no longer open */ 2333 sc->aac_state &= ~AAC_STATE_OPEN; 2334 2335 return 0; 2336} 2337 2338static int 2339aac_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2340{ 2341 union aac_statrequest *as; 2342 struct aac_softc *sc; 2343 int error = 0; 2344 uint32_t cookie; 2345 2346 debug_called(2); 2347 2348 as = (union aac_statrequest *)arg; 2349 sc = dev->si_drv1; 2350 2351 switch (cmd) { 2352 case AACIO_STATS: 2353 switch (as->as_item) { 2354 case AACQ_FREE: 2355 case AACQ_BIO: 2356 case AACQ_READY: 2357 case AACQ_BUSY: 2358 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2359 sizeof(struct aac_qstat)); 2360 break; 2361 default: 2362 error = ENOENT; 2363 break; 2364 } 2365 break; 2366 2367 case FSACTL_SENDFIB: 2368 arg = *(caddr_t*)arg; 2369 case FSACTL_LNX_SENDFIB: 2370 debug(1, "FSACTL_SENDFIB"); 2371 error = aac_ioctl_sendfib(sc, arg); 2372 break; 2373 case FSACTL_AIF_THREAD: 2374 case FSACTL_LNX_AIF_THREAD: 2375 debug(1, "FSACTL_AIF_THREAD"); 2376 error = EINVAL; 2377 break; 2378 case FSACTL_OPEN_GET_ADAPTER_FIB: 2379 arg = *(caddr_t*)arg; 2380 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2381 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2382 /* 2383 * Pass the caller out an AdapterFibContext. 2384 * 2385 * Note that because we only support one opener, we 2386 * basically ignore this. Set the caller's context to a magic 2387 * number just in case. 2388 * 2389 * The Linux code hands the driver a pointer into kernel space, 2390 * and then trusts it when the caller hands it back. Aiee! 2391 * Here, we give it the proc pointer of the per-adapter aif 2392 * thread. It's only used as a sanity check in other calls. 2393 */ 2394 cookie = (uint32_t)(uintptr_t)sc->aifthread; 2395 error = copyout(&cookie, arg, sizeof(cookie)); 2396 break; 2397 case FSACTL_GET_NEXT_ADAPTER_FIB: 2398 arg = *(caddr_t*)arg; 2399 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2400 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2401 error = aac_getnext_aif(sc, arg); 2402 break; 2403 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2404 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2405 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2406 /* don't do anything here */ 2407 break; 2408 case FSACTL_MINIPORT_REV_CHECK: 2409 arg = *(caddr_t*)arg; 2410 case FSACTL_LNX_MINIPORT_REV_CHECK: 2411 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2412 error = aac_rev_check(sc, arg); 2413 break; 2414 case FSACTL_QUERY_DISK: 2415 arg = *(caddr_t*)arg; 2416 case FSACTL_LNX_QUERY_DISK: 2417 debug(1, "FSACTL_QUERY_DISK"); 2418 error = aac_query_disk(sc, arg); 2419 break; 2420 case FSACTL_DELETE_DISK: 2421 case FSACTL_LNX_DELETE_DISK: 2422 /* 2423 * We don't trust the underland to tell us when to delete a 2424 * container, rather we rely on an AIF coming from the 2425 * controller 2426 */ 2427 error = 0; 2428 break; 2429 default: 2430 debug(1, "unsupported cmd 0x%lx\n", cmd); 2431 error = EINVAL; 2432 break; 2433 } 2434 return(error); 2435} 2436 2437static int 2438aac_poll(struct cdev *dev, int poll_events, d_thread_t *td) 2439{ 2440 struct aac_softc *sc; 2441 int revents; 2442 2443 sc = dev->si_drv1; 2444 revents = 0; 2445 2446 mtx_lock(&sc->aac_aifq_lock); 2447 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2448 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2449 revents |= poll_events & (POLLIN | POLLRDNORM); 2450 } 2451 mtx_unlock(&sc->aac_aifq_lock); 2452 2453 if (revents == 0) { 2454 if (poll_events & (POLLIN | POLLRDNORM)) 2455 selrecord(td, &sc->rcv_select); 2456 } 2457 2458 return (revents); 2459} 2460 2461/* 2462 * Send a FIB supplied from userspace 2463 */ 2464static int 2465aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2466{ 2467 struct aac_command *cm; 2468 int size, error; 2469 2470 debug_called(2); 2471 2472 cm = NULL; 2473 2474 /* 2475 * Get a command 2476 */ 2477 mtx_lock(&sc->aac_io_lock); 2478 if (aac_alloc_command(sc, &cm)) { 2479 error = EBUSY; 2480 goto out; 2481 } 2482 2483 /* 2484 * Fetch the FIB header, then re-copy to get data as well. 2485 */ 2486 if ((error = copyin(ufib, cm->cm_fib, 2487 sizeof(struct aac_fib_header))) != 0) 2488 goto out; 2489 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2490 if (size > sizeof(struct aac_fib)) { 2491 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %zd)\n", 2492 size, sizeof(struct aac_fib)); 2493 size = sizeof(struct aac_fib); 2494 } 2495 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2496 goto out; 2497 cm->cm_fib->Header.Size = size; 2498 cm->cm_timestamp = time_second; 2499 2500 /* 2501 * Pass the FIB to the controller, wait for it to complete. 2502 */ 2503 if ((error = aac_wait_command(cm)) != 0) { 2504 device_printf(sc->aac_dev, 2505 "aac_wait_command return %d\n", error); 2506 goto out; 2507 } 2508 2509 /* 2510 * Copy the FIB and data back out to the caller. 2511 */ 2512 size = cm->cm_fib->Header.Size; 2513 if (size > sizeof(struct aac_fib)) { 2514 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %zd)\n", 2515 size, sizeof(struct aac_fib)); 2516 size = sizeof(struct aac_fib); 2517 } 2518 error = copyout(cm->cm_fib, ufib, size); 2519 2520out: 2521 if (cm != NULL) { 2522 aac_release_command(cm); 2523 } 2524 2525 mtx_unlock(&sc->aac_io_lock); 2526 return(error); 2527} 2528 2529/* 2530 * Handle an AIF sent to us by the controller; queue it for later reference. 2531 * If the queue fills up, then drop the older entries. 2532 */ 2533static void 2534aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2535{ 2536 struct aac_aif_command *aif; 2537 struct aac_container *co, *co_next; 2538 struct aac_mntinfo *mi; 2539 struct aac_mntinforesp *mir = NULL; 2540 u_int16_t rsize; 2541 int next, found; 2542 int count = 0, added = 0, i = 0; 2543 2544 debug_called(2); 2545 2546 aif = (struct aac_aif_command*)&fib->data[0]; 2547 aac_print_aif(sc, aif); 2548 2549 /* Is it an event that we should care about? */ 2550 switch (aif->command) { 2551 case AifCmdEventNotify: 2552 switch (aif->data.EN.type) { 2553 case AifEnAddContainer: 2554 case AifEnDeleteContainer: 2555 /* 2556 * A container was added or deleted, but the message 2557 * doesn't tell us anything else! Re-enumerate the 2558 * containers and sort things out. 2559 */ 2560 aac_alloc_sync_fib(sc, &fib); 2561 mi = (struct aac_mntinfo *)&fib->data[0]; 2562 do { 2563 /* 2564 * Ask the controller for its containers one at 2565 * a time. 2566 * XXX What if the controller's list changes 2567 * midway through this enumaration? 2568 * XXX This should be done async. 2569 */ 2570 bzero(mi, sizeof(struct aac_mntinfo)); 2571 mi->Command = VM_NameServe; 2572 mi->MntType = FT_FILESYS; 2573 mi->MntCount = i; 2574 rsize = sizeof(mir); 2575 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2576 sizeof(struct aac_mntinfo))) { 2577 printf("Error probing container %d\n", 2578 i); 2579 continue; 2580 } 2581 mir = (struct aac_mntinforesp *)&fib->data[0]; 2582 /* XXX Need to check if count changed */ 2583 count = mir->MntRespCount; 2584 /* 2585 * Check the container against our list. 2586 * co->co_found was already set to 0 in a 2587 * previous run. 2588 */ 2589 if ((mir->Status == ST_OK) && 2590 (mir->MntTable[0].VolType != CT_NONE)) { 2591 found = 0; 2592 TAILQ_FOREACH(co, 2593 &sc->aac_container_tqh, 2594 co_link) { 2595 if (co->co_mntobj.ObjectId == 2596 mir->MntTable[0].ObjectId) { 2597 co->co_found = 1; 2598 found = 1; 2599 break; 2600 } 2601 } 2602 /* 2603 * If the container matched, continue 2604 * in the list. 2605 */ 2606 if (found) { 2607 i++; 2608 continue; 2609 } 2610 2611 /* 2612 * This is a new container. Do all the 2613 * appropriate things to set it up. 2614 */ 2615 aac_add_container(sc, mir, 1); 2616 added = 1; 2617 } 2618 i++; 2619 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 2620 aac_release_sync_fib(sc); 2621 2622 /* 2623 * Go through our list of containers and see which ones 2624 * were not marked 'found'. Since the controller didn't 2625 * list them they must have been deleted. Do the 2626 * appropriate steps to destroy the device. Also reset 2627 * the co->co_found field. 2628 */ 2629 co = TAILQ_FIRST(&sc->aac_container_tqh); 2630 while (co != NULL) { 2631 if (co->co_found == 0) { 2632 device_delete_child(sc->aac_dev, 2633 co->co_disk); 2634 co_next = TAILQ_NEXT(co, co_link); 2635 mtx_lock(&sc->aac_container_lock); 2636 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2637 co_link); 2638 mtx_unlock(&sc->aac_container_lock); 2639 FREE(co, M_AACBUF); 2640 co = co_next; 2641 } else { 2642 co->co_found = 0; 2643 co = TAILQ_NEXT(co, co_link); 2644 } 2645 } 2646 2647 /* Attach the newly created containers */ 2648 if (added) 2649 bus_generic_attach(sc->aac_dev); 2650 2651 break; 2652 2653 default: 2654 break; 2655 } 2656 2657 default: 2658 break; 2659 } 2660 2661 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2662 mtx_lock(&sc->aac_aifq_lock); 2663 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2664 if (next != sc->aac_aifq_tail) { 2665 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2666 sc->aac_aifq_head = next; 2667 2668 /* On the off chance that someone is sleeping for an aif... */ 2669 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2670 wakeup(sc->aac_aifq); 2671 /* Wakeup any poll()ers */ 2672 selwakeuppri(&sc->rcv_select, PRIBIO); 2673 } 2674 mtx_unlock(&sc->aac_aifq_lock); 2675 2676 return; 2677} 2678 2679/* 2680 * Return the Revision of the driver to userspace and check to see if the 2681 * userspace app is possibly compatible. This is extremely bogus since 2682 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2683 * returning what the card reported. 2684 */ 2685static int 2686aac_rev_check(struct aac_softc *sc, caddr_t udata) 2687{ 2688 struct aac_rev_check rev_check; 2689 struct aac_rev_check_resp rev_check_resp; 2690 int error = 0; 2691 2692 debug_called(2); 2693 2694 /* 2695 * Copyin the revision struct from userspace 2696 */ 2697 if ((error = copyin(udata, (caddr_t)&rev_check, 2698 sizeof(struct aac_rev_check))) != 0) { 2699 return error; 2700 } 2701 2702 debug(2, "Userland revision= %d\n", 2703 rev_check.callingRevision.buildNumber); 2704 2705 /* 2706 * Doctor up the response struct. 2707 */ 2708 rev_check_resp.possiblyCompatible = 1; 2709 rev_check_resp.adapterSWRevision.external.ul = 2710 sc->aac_revision.external.ul; 2711 rev_check_resp.adapterSWRevision.buildNumber = 2712 sc->aac_revision.buildNumber; 2713 2714 return(copyout((caddr_t)&rev_check_resp, udata, 2715 sizeof(struct aac_rev_check_resp))); 2716} 2717 2718/* 2719 * Pass the caller the next AIF in their queue 2720 */ 2721static int 2722aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2723{ 2724 struct get_adapter_fib_ioctl agf; 2725 int error; 2726 2727 debug_called(2); 2728 2729 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2730 2731 /* 2732 * Check the magic number that we gave the caller. 2733 */ 2734 if (agf.AdapterFibContext != (int)(uintptr_t)sc->aifthread) { 2735 error = EFAULT; 2736 } else { 2737 error = aac_return_aif(sc, agf.AifFib); 2738 if ((error == EAGAIN) && (agf.Wait)) { 2739 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2740 while (error == EAGAIN) { 2741 error = tsleep(sc->aac_aifq, PRIBIO | 2742 PCATCH, "aacaif", 0); 2743 if (error == 0) 2744 error = aac_return_aif(sc, 2745 agf.AifFib); 2746 } 2747 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2748 } 2749 } 2750 } 2751 return(error); 2752} 2753 2754/* 2755 * Hand the next AIF off the top of the queue out to userspace. 2756 */ 2757static int 2758aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2759{ 2760 int next, error; 2761 2762 debug_called(2); 2763 2764 mtx_lock(&sc->aac_aifq_lock); 2765 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2766 mtx_unlock(&sc->aac_aifq_lock); 2767 return (EAGAIN); 2768 } 2769 2770 next = (sc->aac_aifq_tail + 1) % AAC_AIFQ_LENGTH; 2771 error = copyout(&sc->aac_aifq[next], uptr, 2772 sizeof(struct aac_aif_command)); 2773 if (error) 2774 device_printf(sc->aac_dev, 2775 "aac_return_aif: copyout returned %d\n", error); 2776 else 2777 sc->aac_aifq_tail = next; 2778 2779 mtx_unlock(&sc->aac_aifq_lock); 2780 return(error); 2781} 2782 2783/* 2784 * Give the userland some information about the container. The AAC arch 2785 * expects the driver to be a SCSI passthrough type driver, so it expects 2786 * the containers to have b:t:l numbers. Fake it. 2787 */ 2788static int 2789aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2790{ 2791 struct aac_query_disk query_disk; 2792 struct aac_container *co; 2793 struct aac_disk *disk; 2794 int error, id; 2795 2796 debug_called(2); 2797 2798 disk = NULL; 2799 2800 error = copyin(uptr, (caddr_t)&query_disk, 2801 sizeof(struct aac_query_disk)); 2802 if (error) 2803 return (error); 2804 2805 id = query_disk.ContainerNumber; 2806 if (id == -1) 2807 return (EINVAL); 2808 2809 mtx_lock(&sc->aac_container_lock); 2810 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2811 if (co->co_mntobj.ObjectId == id) 2812 break; 2813 } 2814 2815 if (co == NULL) { 2816 query_disk.Valid = 0; 2817 query_disk.Locked = 0; 2818 query_disk.Deleted = 1; /* XXX is this right? */ 2819 } else { 2820 disk = device_get_softc(co->co_disk); 2821 query_disk.Valid = 1; 2822 query_disk.Locked = 2823 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2824 query_disk.Deleted = 0; 2825 query_disk.Bus = device_get_unit(sc->aac_dev); 2826 query_disk.Target = disk->unit; 2827 query_disk.Lun = 0; 2828 query_disk.UnMapped = 0; 2829 sprintf(&query_disk.diskDeviceName[0], "%s%d", 2830 disk->ad_disk->d_name, disk->ad_disk->d_unit); 2831 } 2832 mtx_unlock(&sc->aac_container_lock); 2833 2834 error = copyout((caddr_t)&query_disk, uptr, 2835 sizeof(struct aac_query_disk)); 2836 2837 return (error); 2838} 2839 2840static void 2841aac_get_bus_info(struct aac_softc *sc) 2842{ 2843 struct aac_fib *fib; 2844 struct aac_ctcfg *c_cmd; 2845 struct aac_ctcfg_resp *c_resp; 2846 struct aac_vmioctl *vmi; 2847 struct aac_vmi_businf_resp *vmi_resp; 2848 struct aac_getbusinf businfo; 2849 struct aac_sim *caminf; 2850 device_t child; 2851 int i, found, error; 2852 2853 aac_alloc_sync_fib(sc, &fib); 2854 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2855 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2856 2857 c_cmd->Command = VM_ContainerConfig; 2858 c_cmd->cmd = CT_GET_SCSI_METHOD; 2859 c_cmd->param = 0; 2860 2861 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2862 sizeof(struct aac_ctcfg)); 2863 if (error) { 2864 device_printf(sc->aac_dev, "Error %d sending " 2865 "VM_ContainerConfig command\n", error); 2866 aac_release_sync_fib(sc); 2867 return; 2868 } 2869 2870 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2871 if (c_resp->Status != ST_OK) { 2872 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2873 c_resp->Status); 2874 aac_release_sync_fib(sc); 2875 return; 2876 } 2877 2878 sc->scsi_method_id = c_resp->param; 2879 2880 vmi = (struct aac_vmioctl *)&fib->data[0]; 2881 bzero(vmi, sizeof(struct aac_vmioctl)); 2882 2883 vmi->Command = VM_Ioctl; 2884 vmi->ObjType = FT_DRIVE; 2885 vmi->MethId = sc->scsi_method_id; 2886 vmi->ObjId = 0; 2887 vmi->IoctlCmd = GetBusInfo; 2888 2889 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2890 sizeof(struct aac_vmioctl)); 2891 if (error) { 2892 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2893 error); 2894 aac_release_sync_fib(sc); 2895 return; 2896 } 2897 2898 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2899 if (vmi_resp->Status != ST_OK) { 2900 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2901 vmi_resp->Status); 2902 aac_release_sync_fib(sc); 2903 return; 2904 } 2905 2906 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2907 aac_release_sync_fib(sc); 2908 2909 found = 0; 2910 for (i = 0; i < businfo.BusCount; i++) { 2911 if (businfo.BusValid[i] != AAC_BUS_VALID) 2912 continue; 2913 2914 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), 2915 M_AACBUF, M_NOWAIT | M_ZERO); 2916 if (caminf == NULL) 2917 continue; 2918 2919 child = device_add_child(sc->aac_dev, "aacp", -1); 2920 if (child == NULL) { 2921 device_printf(sc->aac_dev, "device_add_child failed\n"); 2922 continue; 2923 } 2924 2925 caminf->TargetsPerBus = businfo.TargetsPerBus; 2926 caminf->BusNumber = i; 2927 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2928 caminf->aac_sc = sc; 2929 caminf->sim_dev = child; 2930 2931 device_set_ivars(child, caminf); 2932 device_set_desc(child, "SCSI Passthrough Bus"); 2933 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2934 2935 found = 1; 2936 } 2937 2938 if (found) 2939 bus_generic_attach(sc->aac_dev); 2940 2941 return; 2942} 2943