aac.c revision 110426
1/*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001 Adaptec, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: head/sys/dev/aac/aac.c 110426 2003-02-05 23:24:25Z scottl $ 30 */ 31 32/* 33 * Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters. 34 */ 35 36#include "opt_aac.h" 37 38/* #include <stddef.h> */ 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/malloc.h> 42#include <sys/kernel.h> 43#include <sys/kthread.h> 44#include <sys/lock.h> 45#include <sys/mutex.h> 46#include <sys/sysctl.h> 47#include <sys/poll.h> 48#if __FreeBSD_version >= 500005 49#include <sys/selinfo.h> 50#else 51#include <sys/select.h> 52#endif 53 54#include <dev/aac/aac_compat.h> 55 56#include <sys/bus.h> 57#include <sys/conf.h> 58#include <sys/devicestat.h> 59#include <sys/disk.h> 60#include <sys/signalvar.h> 61#include <sys/time.h> 62#include <sys/eventhandler.h> 63 64#include <machine/bus_memio.h> 65#include <machine/bus.h> 66#include <machine/resource.h> 67 68#include <dev/aac/aacreg.h> 69#include <dev/aac/aac_ioctl.h> 70#include <dev/aac/aacvar.h> 71#include <dev/aac/aac_tables.h> 72#include <dev/aac/aac_cam.h> 73 74static void aac_startup(void *arg); 75static void aac_add_container(struct aac_softc *sc, 76 struct aac_mntinforesp *mir, int f); 77static void aac_get_bus_info(struct aac_softc *sc); 78 79/* Command Processing */ 80static void aac_timeout(struct aac_softc *sc); 81static int aac_start(struct aac_command *cm); 82static void aac_complete(void *context, int pending); 83static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 84static void aac_bio_complete(struct aac_command *cm); 85static int aac_wait_command(struct aac_command *cm, int timeout); 86static void aac_command_thread(struct aac_softc *sc); 87static void aac_host_response(struct aac_softc *sc); 88 89/* Command Buffer Management */ 90static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 91 int nseg, int error); 92static int aac_alloc_commands(struct aac_softc *sc); 93static void aac_free_commands(struct aac_softc *sc); 94static void aac_map_command(struct aac_command *cm); 95static void aac_unmap_command(struct aac_command *cm); 96 97/* Hardware Interface */ 98static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 99 int error); 100static int aac_check_firmware(struct aac_softc *sc); 101static int aac_init(struct aac_softc *sc); 102static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 103 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 104 u_int32_t arg3, u_int32_t *sp); 105static int aac_enqueue_fib(struct aac_softc *sc, int queue, 106 struct aac_command *cm); 107static int aac_dequeue_fib(struct aac_softc *sc, int queue, 108 u_int32_t *fib_size, struct aac_fib **fib_addr); 109static int aac_enqueue_response(struct aac_softc *sc, int queue, 110 struct aac_fib *fib); 111 112/* Falcon/PPC interface */ 113static int aac_fa_get_fwstatus(struct aac_softc *sc); 114static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 115static int aac_fa_get_istatus(struct aac_softc *sc); 116static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 117static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 118 u_int32_t arg0, u_int32_t arg1, 119 u_int32_t arg2, u_int32_t arg3); 120static int aac_fa_get_mailboxstatus(struct aac_softc *sc); 121static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 122 123struct aac_interface aac_fa_interface = { 124 aac_fa_get_fwstatus, 125 aac_fa_qnotify, 126 aac_fa_get_istatus, 127 aac_fa_clear_istatus, 128 aac_fa_set_mailbox, 129 aac_fa_get_mailboxstatus, 130 aac_fa_set_interrupts 131}; 132 133/* StrongARM interface */ 134static int aac_sa_get_fwstatus(struct aac_softc *sc); 135static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 136static int aac_sa_get_istatus(struct aac_softc *sc); 137static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 138static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 139 u_int32_t arg0, u_int32_t arg1, 140 u_int32_t arg2, u_int32_t arg3); 141static int aac_sa_get_mailboxstatus(struct aac_softc *sc); 142static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 143 144struct aac_interface aac_sa_interface = { 145 aac_sa_get_fwstatus, 146 aac_sa_qnotify, 147 aac_sa_get_istatus, 148 aac_sa_clear_istatus, 149 aac_sa_set_mailbox, 150 aac_sa_get_mailboxstatus, 151 aac_sa_set_interrupts 152}; 153 154/* i960Rx interface */ 155static int aac_rx_get_fwstatus(struct aac_softc *sc); 156static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 157static int aac_rx_get_istatus(struct aac_softc *sc); 158static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 159static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 160 u_int32_t arg0, u_int32_t arg1, 161 u_int32_t arg2, u_int32_t arg3); 162static int aac_rx_get_mailboxstatus(struct aac_softc *sc); 163static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 164 165struct aac_interface aac_rx_interface = { 166 aac_rx_get_fwstatus, 167 aac_rx_qnotify, 168 aac_rx_get_istatus, 169 aac_rx_clear_istatus, 170 aac_rx_set_mailbox, 171 aac_rx_get_mailboxstatus, 172 aac_rx_set_interrupts 173}; 174 175/* Debugging and Diagnostics */ 176static void aac_describe_controller(struct aac_softc *sc); 177static char *aac_describe_code(struct aac_code_lookup *table, 178 u_int32_t code); 179 180/* Management Interface */ 181static d_open_t aac_open; 182static d_close_t aac_close; 183static d_ioctl_t aac_ioctl; 184static d_poll_t aac_poll; 185static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 186static void aac_handle_aif(struct aac_softc *sc, 187 struct aac_fib *fib); 188static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 189static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 190static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 191static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 192 193#define AAC_CDEV_MAJOR 150 194 195static struct cdevsw aac_cdevsw = { 196 aac_open, /* open */ 197 aac_close, /* close */ 198 noread, /* read */ 199 nowrite, /* write */ 200 aac_ioctl, /* ioctl */ 201 aac_poll, /* poll */ 202 nommap, /* mmap */ 203 nostrategy, /* strategy */ 204 "aac", /* name */ 205 AAC_CDEV_MAJOR, /* major */ 206 nodump, /* dump */ 207 nopsize, /* psize */ 208 0, /* flags */ 209#if __FreeBSD_version < 500005 210 -1, /* bmaj */ 211#endif 212}; 213 214MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 215 216/* sysctl node */ 217SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 218 219/* 220 * Device Interface 221 */ 222 223/* 224 * Initialise the controller and softc 225 */ 226int 227aac_attach(struct aac_softc *sc) 228{ 229 int error, unit; 230 231 debug_called(1); 232 233 /* 234 * Initialise per-controller queues. 235 */ 236 aac_initq_free(sc); 237 aac_initq_ready(sc); 238 aac_initq_busy(sc); 239 aac_initq_complete(sc); 240 aac_initq_bio(sc); 241 242#if __FreeBSD_version >= 500005 243 /* 244 * Initialise command-completion task. 245 */ 246 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 247#endif 248 249 /* disable interrupts before we enable anything */ 250 AAC_MASK_INTERRUPTS(sc); 251 252 /* mark controller as suspended until we get ourselves organised */ 253 sc->aac_state |= AAC_STATE_SUSPEND; 254 255 /* 256 * Check that the firmware on the card is supported. 257 */ 258 if ((error = aac_check_firmware(sc)) != 0) 259 return(error); 260 261 /* 262 * Allocate command structures. This must be done before aac_init() 263 * in order to work around a 2120/2200 bug. 264 */ 265 if ((error = aac_alloc_commands(sc)) != 0) 266 return(error); 267 268 /* Init the sync fib lock */ 269 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 270 271 /* 272 * Initialise the adapter. 273 */ 274 if ((error = aac_init(sc)) != 0) 275 return(error); 276 277 /* 278 * Print a little information about the controller. 279 */ 280 aac_describe_controller(sc); 281 282 /* 283 * Register to probe our containers later. 284 */ 285 TAILQ_INIT(&sc->aac_container_tqh); 286 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 287 288 /* 289 * Lock for the AIF queue 290 */ 291 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 292 293 sc->aac_ich.ich_func = aac_startup; 294 sc->aac_ich.ich_arg = sc; 295 if (config_intrhook_establish(&sc->aac_ich) != 0) { 296 device_printf(sc->aac_dev, 297 "can't establish configuration hook\n"); 298 return(ENXIO); 299 } 300 301 /* 302 * Make the control device. 303 */ 304 unit = device_get_unit(sc->aac_dev); 305 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 306 0640, "aac%d", unit); 307#if __FreeBSD_version > 500005 308 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 309 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 310#endif 311 sc->aac_dev_t->si_drv1 = sc; 312 313 /* Create the AIF thread */ 314#if __FreeBSD_version > 500005 315 if (kthread_create((void(*)(void *))aac_command_thread, sc, 316 &sc->aifthread, 0, 0, "aac%daif", unit)) 317#else 318 if (kthread_create((void(*)(void *))aac_command_thread, sc, 319 &sc->aifthread, "aac%daif", unit)) 320#endif 321 panic("Could not create AIF thread\n"); 322 323 /* Register the shutdown method to only be called post-dump */ 324 if ((EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, sc->aac_dev, 325 SHUTDOWN_PRI_DEFAULT)) == NULL) 326 device_printf(sc->aac_dev, "shutdown event registration failed\n"); 327 328 /* Register with CAM for the non-DASD devices */ 329 if (!(sc->quirks & AAC_QUIRK_NOCAM)) { 330 TAILQ_INIT(&sc->aac_sim_tqh); 331 aac_get_bus_info(sc); 332 } 333 334 return(0); 335} 336 337/* 338 * Probe for containers, create disks. 339 */ 340static void 341aac_startup(void *arg) 342{ 343 struct aac_softc *sc; 344 struct aac_fib *fib; 345 struct aac_mntinfo *mi; 346 struct aac_mntinforesp *mir = NULL; 347 int i = 0; 348 349 debug_called(1); 350 351 sc = (struct aac_softc *)arg; 352 353 /* disconnect ourselves from the intrhook chain */ 354 config_intrhook_disestablish(&sc->aac_ich); 355 356 aac_alloc_sync_fib(sc, &fib, 0); 357 mi = (struct aac_mntinfo *)&fib->data[0]; 358 359 /* loop over possible containers */ 360 do { 361 /* request information on this container */ 362 bzero(mi, sizeof(struct aac_mntinfo)); 363 mi->Command = VM_NameServe; 364 mi->MntType = FT_FILESYS; 365 mi->MntCount = i; 366 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 367 sizeof(struct aac_mntinfo))) { 368 debug(2, "error probing container %d", i); 369 continue; 370 } 371 372 mir = (struct aac_mntinforesp *)&fib->data[0]; 373 aac_add_container(sc, mir, 0); 374 i++; 375 } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS)); 376 377 aac_release_sync_fib(sc); 378 379 /* poke the bus to actually attach the child devices */ 380 if (bus_generic_attach(sc->aac_dev)) 381 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 382 383 /* mark the controller up */ 384 sc->aac_state &= ~AAC_STATE_SUSPEND; 385 386 /* enable interrupts now */ 387 AAC_UNMASK_INTERRUPTS(sc); 388} 389 390/* 391 * Create a device to respresent a new container 392 */ 393static void 394aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 395{ 396 struct aac_container *co; 397 device_t child; 398 399 /* 400 * Check container volume type for validity. Note that many of 401 * the possible types may never show up. 402 */ 403 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 404 MALLOC(co, struct aac_container *, sizeof *co, M_AACBUF, 405 M_NOWAIT); 406 if (co == NULL) 407 panic("Out of memory?!\n"); 408 debug(1, "id %x name '%.16s' size %u type %d", 409 mir->MntTable[0].ObjectId, 410 mir->MntTable[0].FileSystemName, 411 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 412 413 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 414 device_printf(sc->aac_dev, "device_add_child failed\n"); 415 else 416 device_set_ivars(child, co); 417 device_set_desc(child, aac_describe_code(aac_container_types, 418 mir->MntTable[0].VolType)); 419 co->co_disk = child; 420 co->co_found = f; 421 bcopy(&mir->MntTable[0], &co->co_mntobj, 422 sizeof(struct aac_mntobj)); 423 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 424 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 425 AAC_LOCK_RELEASE(&sc->aac_container_lock); 426 } 427} 428 429/* 430 * Free all of the resources associated with (sc) 431 * 432 * Should not be called if the controller is active. 433 */ 434void 435aac_free(struct aac_softc *sc) 436{ 437 debug_called(1); 438 439 /* remove the control device */ 440 if (sc->aac_dev_t != NULL) 441 destroy_dev(sc->aac_dev_t); 442 443 /* throw away any FIB buffers, discard the FIB DMA tag */ 444 if (sc->aac_fibs != NULL) 445 aac_free_commands(sc); 446 if (sc->aac_fib_dmat) 447 bus_dma_tag_destroy(sc->aac_fib_dmat); 448 449 /* destroy the common area */ 450 if (sc->aac_common) { 451 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 452 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 453 sc->aac_common_dmamap); 454 } 455 if (sc->aac_common_dmat) 456 bus_dma_tag_destroy(sc->aac_common_dmat); 457 458 /* disconnect the interrupt handler */ 459 if (sc->aac_intr) 460 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 461 if (sc->aac_irq != NULL) 462 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 463 sc->aac_irq); 464 465 /* destroy data-transfer DMA tag */ 466 if (sc->aac_buffer_dmat) 467 bus_dma_tag_destroy(sc->aac_buffer_dmat); 468 469 /* destroy the parent DMA tag */ 470 if (sc->aac_parent_dmat) 471 bus_dma_tag_destroy(sc->aac_parent_dmat); 472 473 /* release the register window mapping */ 474 if (sc->aac_regs_resource != NULL) 475 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 476 sc->aac_regs_rid, sc->aac_regs_resource); 477} 478 479/* 480 * Disconnect from the controller completely, in preparation for unload. 481 */ 482int 483aac_detach(device_t dev) 484{ 485 struct aac_softc *sc; 486 struct aac_container *co; 487 struct aac_sim *sim; 488 int error; 489 490 debug_called(1); 491 492 sc = device_get_softc(dev); 493 494 if (sc->aac_state & AAC_STATE_OPEN) 495 return(EBUSY); 496 497 /* Remove the child containers */ 498 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 499 error = device_delete_child(dev, co->co_disk); 500 if (error) 501 return (error); 502 } 503 504 /* Remove the CAM SIMs */ 505 TAILQ_FOREACH(sim, &sc->aac_sim_tqh, sim_link) { 506 error = device_delete_child(dev, sim->sim_dev); 507 if (error) 508 return (error); 509 } 510 511 bus_generic_detach(dev); 512 513 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 514 sc->aifflags |= AAC_AIFFLAGS_EXIT; 515 wakeup(sc->aifthread); 516 tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 517 } 518 519 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 520 panic("Cannot shutdown AIF thread\n"); 521 522 if ((error = aac_shutdown(dev))) 523 return(error); 524 525 aac_free(sc); 526 527 return(0); 528} 529 530/* 531 * Bring the controller down to a dormant state and detach all child devices. 532 * 533 * This function is called before detach or system shutdown. 534 * 535 * Note that we can assume that the bioq on the controller is empty, as we won't 536 * allow shutdown if any device is open. 537 */ 538int 539aac_shutdown(device_t dev) 540{ 541 struct aac_softc *sc; 542 struct aac_fib *fib; 543 struct aac_close_command *cc; 544 int s; 545 546 debug_called(1); 547 548 sc = device_get_softc(dev); 549 550 s = splbio(); 551 552 sc->aac_state |= AAC_STATE_SUSPEND; 553 554 /* 555 * Send a Container shutdown followed by a HostShutdown FIB to the 556 * controller to convince it that we don't want to talk to it anymore. 557 * We've been closed and all I/O completed already 558 */ 559 device_printf(sc->aac_dev, "shutting down controller..."); 560 561 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 562 cc = (struct aac_close_command *)&fib->data[0]; 563 564 bzero(cc, sizeof(struct aac_close_command)); 565 cc->Command = VM_CloseAll; 566 cc->ContainerId = 0xffffffff; 567 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 568 sizeof(struct aac_close_command))) 569 printf("FAILED.\n"); 570 else 571 printf("done\n"); 572#if 0 573 else { 574 fib->data[0] = 0; 575 /* 576 * XXX Issuing this command to the controller makes it shut down 577 * but also keeps it from coming back up without a reset of the 578 * PCI bus. This is not desirable if you are just unloading the 579 * driver module with the intent to reload it later. 580 */ 581 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 582 fib, 1)) { 583 printf("FAILED.\n"); 584 } else { 585 printf("done.\n"); 586 } 587 } 588#endif 589 590 AAC_MASK_INTERRUPTS(sc); 591 592 splx(s); 593 return(0); 594} 595 596/* 597 * Bring the controller to a quiescent state, ready for system suspend. 598 */ 599int 600aac_suspend(device_t dev) 601{ 602 struct aac_softc *sc; 603 int s; 604 605 debug_called(1); 606 607 sc = device_get_softc(dev); 608 609 s = splbio(); 610 611 sc->aac_state |= AAC_STATE_SUSPEND; 612 613 AAC_MASK_INTERRUPTS(sc); 614 splx(s); 615 return(0); 616} 617 618/* 619 * Bring the controller back to a state ready for operation. 620 */ 621int 622aac_resume(device_t dev) 623{ 624 struct aac_softc *sc; 625 626 debug_called(1); 627 628 sc = device_get_softc(dev); 629 630 sc->aac_state &= ~AAC_STATE_SUSPEND; 631 AAC_UNMASK_INTERRUPTS(sc); 632 return(0); 633} 634 635/* 636 * Take an interrupt. 637 */ 638void 639aac_intr(void *arg) 640{ 641 struct aac_softc *sc; 642 u_int32_t *resp_queue; 643 u_int16_t reason; 644 645 debug_called(2); 646 647 sc = (struct aac_softc *)arg; 648 649 /* 650 * Optimize the common case of adapter response interrupts. 651 * We must read from the card prior to processing the responses 652 * to ensure the clear is flushed prior to accessing the queues. 653 * Reading the queues from local memory might save us a PCI read. 654 */ 655 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 656 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 657 reason = AAC_DB_RESPONSE_READY; 658 else 659 reason = AAC_GET_ISTATUS(sc); 660 AAC_CLEAR_ISTATUS(sc, reason); 661 (void)AAC_GET_ISTATUS(sc); 662 663 /* It's not ok to return here because of races with the previous step */ 664 if (reason & AAC_DB_RESPONSE_READY) 665 aac_host_response(sc); 666 667 /* controller wants to talk to the log */ 668 if (reason & AAC_DB_PRINTF) { 669 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 670 sc->aifflags |= AAC_AIFFLAGS_PRINTF; 671 } else 672 aac_print_printf(sc); 673 } 674 675 /* controller has a message for us? */ 676 if (reason & AAC_DB_COMMAND_READY) { 677 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 678 sc->aifflags |= AAC_AIFFLAGS_AIF; 679 } else { 680 /* 681 * XXX If the kthread is dead and we're at this point, 682 * there are bigger problems than just figuring out 683 * what to do with an AIF. 684 */ 685 } 686 687 } 688 689 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) != 0) 690 /* XXX Should this be done with cv_signal? */ 691 wakeup(sc->aifthread); 692} 693 694/* 695 * Command Processing 696 */ 697 698/* 699 * Start as much queued I/O as possible on the controller 700 */ 701void 702aac_startio(struct aac_softc *sc) 703{ 704 struct aac_command *cm; 705 706 debug_called(2); 707 708 for (;;) { 709 /* 710 * Try to get a command that's been put off for lack of 711 * resources 712 */ 713 cm = aac_dequeue_ready(sc); 714 715 /* 716 * Try to build a command off the bio queue (ignore error 717 * return) 718 */ 719 if (cm == NULL) 720 aac_bio_command(sc, &cm); 721 722 /* nothing to do? */ 723 if (cm == NULL) 724 break; 725 726 /* try to give the command to the controller */ 727 if (aac_start(cm) == EBUSY) { 728 /* put it on the ready queue for later */ 729 aac_requeue_ready(cm); 730 break; 731 } 732 } 733} 734 735/* 736 * Deliver a command to the controller; allocate controller resources at the 737 * last moment when possible. 738 */ 739static int 740aac_start(struct aac_command *cm) 741{ 742 struct aac_softc *sc; 743 int error; 744 745 debug_called(2); 746 747 sc = cm->cm_sc; 748 749 /* get the command mapped */ 750 aac_map_command(cm); 751 752 /* fix up the address values in the FIB */ 753 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 754 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 755 756 /* save a pointer to the command for speedy reverse-lookup */ 757 cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical 758 * address issue */ 759 /* put the FIB on the outbound queue */ 760 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 761 return(error); 762} 763 764/* 765 * Handle notification of one or more FIBs coming from the controller. 766 */ 767static void 768aac_command_thread(struct aac_softc *sc) 769{ 770 struct aac_fib *fib; 771 u_int32_t fib_size; 772 int size; 773 774 debug_called(2); 775 776 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 777 778 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 779 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 780 tsleep(sc->aifthread, PRIBIO, "aifthd", 781 AAC_PERIODIC_INTERVAL * hz); 782 783 /* While we're here, check to see if any commands are stuck */ 784 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 785 aac_timeout(sc); 786 787 /* Check the hardware printf message buffer */ 788 if ((sc->aifflags & AAC_AIFFLAGS_PRINTF) != 0) { 789 sc->aifflags &= ~AAC_AIFFLAGS_PRINTF; 790 aac_print_printf(sc); 791 } 792 793 while (sc->aifflags & AAC_AIFFLAGS_AIF) { 794 795 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 796 &fib_size, &fib)) { 797 sc->aifflags &= ~AAC_AIFFLAGS_AIF; 798 break; /* nothing to do */ 799 } 800 801 AAC_PRINT_FIB(sc, fib); 802 803 switch (fib->Header.Command) { 804 case AifRequest: 805 aac_handle_aif(sc, fib); 806 break; 807 default: 808 device_printf(sc->aac_dev, "unknown command " 809 "from controller\n"); 810 break; 811 } 812 813 if ((fib->Header.XferState == 0) || 814 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 815 break; 816 817 /* Return the AIF to the controller. */ 818 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 819 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 820 *(AAC_FSAStatus*)fib->data = ST_OK; 821 822 /* XXX Compute the Size field? */ 823 size = fib->Header.Size; 824 if (size > sizeof(struct aac_fib)) { 825 size = sizeof(struct aac_fib); 826 fib->Header.Size = size; 827 } 828 /* 829 * Since we did not generate this command, it 830 * cannot go through the normal 831 * enqueue->startio chain. 832 */ 833 aac_enqueue_response(sc, 834 AAC_ADAP_NORM_RESP_QUEUE, 835 fib); 836 } 837 } 838 } 839 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 840 wakeup(sc->aac_dev); 841 842#if __FreeBSD_version > 500005 843 mtx_lock(&Giant); 844#endif 845 kthread_exit(0); 846} 847 848/* 849 * Handle notification of one or more FIBs completed by the controller 850 */ 851static void 852aac_host_response(struct aac_softc *sc) 853{ 854 struct aac_command *cm; 855 struct aac_fib *fib; 856 u_int32_t fib_size; 857 858 debug_called(2); 859 860 for (;;) { 861 /* look for completed FIBs on our queue */ 862 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 863 &fib)) 864 break; /* nothing to do */ 865 866 /* get the command, unmap and queue for later processing */ 867 cm = (struct aac_command *)fib->Header.SenderData; 868 if (cm == NULL) { 869 AAC_PRINT_FIB(sc, fib); 870 } else { 871 aac_remove_busy(cm); 872 aac_unmap_command(cm); /* XXX defer? */ 873 aac_enqueue_complete(cm); 874 } 875 } 876 877 /* handle completion processing */ 878#if __FreeBSD_version >= 500005 879 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 880#else 881 aac_complete(sc, 0); 882#endif 883} 884 885/* 886 * Process completed commands. 887 */ 888static void 889aac_complete(void *context, int pending) 890{ 891 struct aac_softc *sc; 892 struct aac_command *cm; 893 894 debug_called(2); 895 896 sc = (struct aac_softc *)context; 897 898 /* pull completed commands off the queue */ 899 for (;;) { 900 cm = aac_dequeue_complete(sc); 901 if (cm == NULL) 902 break; 903 cm->cm_flags |= AAC_CMD_COMPLETED; 904 905 /* is there a completion handler? */ 906 if (cm->cm_complete != NULL) { 907 cm->cm_complete(cm); 908 } else { 909 /* assume that someone is sleeping on this command */ 910 wakeup(cm); 911 } 912 } 913 914 /* see if we can start some more I/O */ 915 aac_startio(sc); 916} 917 918/* 919 * Handle a bio submitted from a disk device. 920 */ 921void 922aac_submit_bio(struct bio *bp) 923{ 924 struct aac_disk *ad; 925 struct aac_softc *sc; 926 927 debug_called(2); 928 929 ad = (struct aac_disk *)bp->bio_dev->si_drv1; 930 sc = ad->ad_controller; 931 932 /* queue the BIO and try to get some work done */ 933 aac_enqueue_bio(sc, bp); 934 aac_startio(sc); 935} 936 937/* 938 * Get a bio and build a command to go with it. 939 */ 940static int 941aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 942{ 943 struct aac_command *cm; 944 struct aac_fib *fib; 945 struct aac_blockread *br; 946 struct aac_blockwrite *bw; 947 struct aac_disk *ad; 948 struct bio *bp; 949 950 debug_called(2); 951 952 /* get the resources we will need */ 953 cm = NULL; 954 if ((bp = aac_dequeue_bio(sc)) == NULL) 955 goto fail; 956 if (aac_alloc_command(sc, &cm)) /* get a command */ 957 goto fail; 958 959 /* fill out the command */ 960 cm->cm_data = (void *)bp->bio_data; 961 cm->cm_datalen = bp->bio_bcount; 962 cm->cm_complete = aac_bio_complete; 963 cm->cm_private = bp; 964 cm->cm_timestamp = time_second; 965 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 966 967 /* build the FIB */ 968 fib = cm->cm_fib; 969 fib->Header.XferState = 970 AAC_FIBSTATE_HOSTOWNED | 971 AAC_FIBSTATE_INITIALISED | 972 AAC_FIBSTATE_EMPTY | 973 AAC_FIBSTATE_FROMHOST | 974 AAC_FIBSTATE_REXPECTED | 975 AAC_FIBSTATE_NORM | 976 AAC_FIBSTATE_ASYNC | 977 AAC_FIBSTATE_FAST_RESPONSE; 978 fib->Header.Command = ContainerCommand; 979 fib->Header.Size = sizeof(struct aac_fib_header); 980 981 /* build the read/write request */ 982 ad = (struct aac_disk *)bp->bio_dev->si_drv1; 983 if (BIO_IS_READ(bp)) { 984 br = (struct aac_blockread *)&fib->data[0]; 985 br->Command = VM_CtBlockRead; 986 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 987 br->BlockNumber = bp->bio_pblkno; 988 br->ByteCount = bp->bio_bcount; 989 fib->Header.Size += sizeof(struct aac_blockread); 990 cm->cm_sgtable = &br->SgMap; 991 cm->cm_flags |= AAC_CMD_DATAIN; 992 } else { 993 bw = (struct aac_blockwrite *)&fib->data[0]; 994 bw->Command = VM_CtBlockWrite; 995 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 996 bw->BlockNumber = bp->bio_pblkno; 997 bw->ByteCount = bp->bio_bcount; 998 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 999 fib->Header.Size += sizeof(struct aac_blockwrite); 1000 cm->cm_flags |= AAC_CMD_DATAOUT; 1001 cm->cm_sgtable = &bw->SgMap; 1002 } 1003 1004 *cmp = cm; 1005 return(0); 1006 1007fail: 1008 if (bp != NULL) 1009 aac_enqueue_bio(sc, bp); 1010 if (cm != NULL) 1011 aac_release_command(cm); 1012 return(ENOMEM); 1013} 1014 1015/* 1016 * Handle a bio-instigated command that has been completed. 1017 */ 1018static void 1019aac_bio_complete(struct aac_command *cm) 1020{ 1021 struct aac_blockread_response *brr; 1022 struct aac_blockwrite_response *bwr; 1023 struct bio *bp; 1024 AAC_FSAStatus status; 1025 1026 /* fetch relevant status and then release the command */ 1027 bp = (struct bio *)cm->cm_private; 1028 if (BIO_IS_READ(bp)) { 1029 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 1030 status = brr->Status; 1031 } else { 1032 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 1033 status = bwr->Status; 1034 } 1035 aac_release_command(cm); 1036 1037 /* fix up the bio based on status */ 1038 if (status == ST_OK) { 1039 bp->bio_resid = 0; 1040 } else { 1041 bp->bio_error = EIO; 1042 bp->bio_flags |= BIO_ERROR; 1043 /* pass an error string out to the disk layer */ 1044 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1045 status); 1046 } 1047 aac_biodone(bp); 1048} 1049 1050/* 1051 * Submit a command to the controller, return when it completes. 1052 * XXX This is very dangerous! If the card has gone out to lunch, we could 1053 * be stuck here forever. At the same time, signals are not caught 1054 * because there is a risk that a signal could wakeup the tsleep before 1055 * the card has a chance to complete the command. The passed in timeout 1056 * is ignored for the same reason. Since there is no way to cancel a 1057 * command in progress, we should probably create a 'dead' queue where 1058 * commands go that have been interrupted/timed-out/etc, that keeps them 1059 * out of the free pool. That way, if the card is just slow, it won't 1060 * spam the memory of a command that has been recycled. 1061 */ 1062static int 1063aac_wait_command(struct aac_command *cm, int timeout) 1064{ 1065 int s, error = 0; 1066 1067 debug_called(2); 1068 1069 /* Put the command on the ready queue and get things going */ 1070 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1071 aac_enqueue_ready(cm); 1072 aac_startio(cm->cm_sc); 1073 s = splbio(); 1074 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1075 error = tsleep(cm, PRIBIO, "aacwait", 0); 1076 } 1077 splx(s); 1078 return(error); 1079} 1080 1081/* 1082 *Command Buffer Management 1083 */ 1084 1085/* 1086 * Allocate a command. 1087 */ 1088int 1089aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1090{ 1091 struct aac_command *cm; 1092 1093 debug_called(3); 1094 1095 if ((cm = aac_dequeue_free(sc)) == NULL) 1096 return(ENOMEM); 1097 1098 *cmp = cm; 1099 return(0); 1100} 1101 1102/* 1103 * Release a command back to the freelist. 1104 */ 1105void 1106aac_release_command(struct aac_command *cm) 1107{ 1108 debug_called(3); 1109 1110 /* (re)initialise the command/FIB */ 1111 cm->cm_sgtable = NULL; 1112 cm->cm_flags = 0; 1113 cm->cm_complete = NULL; 1114 cm->cm_private = NULL; 1115 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1116 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1117 cm->cm_fib->Header.Flags = 0; 1118 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1119 1120 /* 1121 * These are duplicated in aac_start to cover the case where an 1122 * intermediate stage may have destroyed them. They're left 1123 * initialised here for debugging purposes only. 1124 */ 1125 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 1126 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1127 cm->cm_fib->Header.SenderData = 0; 1128 1129 aac_enqueue_free(cm); 1130} 1131 1132/* 1133 * Map helper for command/FIB allocation. 1134 */ 1135static void 1136aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1137{ 1138 struct aac_softc *sc; 1139 1140 sc = (struct aac_softc *)arg; 1141 1142 debug_called(3); 1143 1144 sc->aac_fibphys = segs[0].ds_addr; 1145} 1146 1147/* 1148 * Allocate and initialise commands/FIBs for this adapter. 1149 */ 1150static int 1151aac_alloc_commands(struct aac_softc *sc) 1152{ 1153 struct aac_command *cm; 1154 int i; 1155 1156 debug_called(1); 1157 1158 /* allocate the FIBs in DMAable memory and load them */ 1159 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs, 1160 BUS_DMA_NOWAIT, &sc->aac_fibmap)) { 1161 device_printf(sc->aac_dev, 1162 "Not enough contiguous memory available.\n"); 1163 return (ENOMEM); 1164 } 1165 1166 /* 1167 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1168 * below address 8192 in physical memory. 1169 * XXX If the padding is not needed, can it be put to use instead 1170 * of ignored? 1171 */ 1172 bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs, 1173 8192 + AAC_FIB_COUNT * sizeof(struct aac_fib), 1174 aac_map_command_helper, sc, 0); 1175 1176 if (sc->aac_fibphys < 8192) { 1177 sc->aac_fibs += (8192 / sizeof(struct aac_fib)); 1178 sc->aac_fibphys += 8192; 1179 } 1180 1181 /* initialise constant fields in the command structure */ 1182 bzero(sc->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1183 for (i = 0; i < AAC_FIB_COUNT; i++) { 1184 cm = &sc->aac_command[i]; 1185 cm->cm_sc = sc; 1186 cm->cm_fib = sc->aac_fibs + i; 1187 cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib)); 1188 1189 if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap)) 1190 aac_release_command(cm); 1191 } 1192 return (0); 1193} 1194 1195/* 1196 * Free FIBs owned by this adapter. 1197 */ 1198static void 1199aac_free_commands(struct aac_softc *sc) 1200{ 1201 int i; 1202 1203 debug_called(1); 1204 1205 for (i = 0; i < AAC_FIB_COUNT; i++) 1206 bus_dmamap_destroy(sc->aac_buffer_dmat, 1207 sc->aac_command[i].cm_datamap); 1208 1209 bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap); 1210 bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap); 1211} 1212 1213/* 1214 * Command-mapping helper function - populate this command's s/g table. 1215 */ 1216static void 1217aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1218{ 1219 struct aac_command *cm; 1220 struct aac_fib *fib; 1221 struct aac_sg_table *sg; 1222 int i; 1223 1224 debug_called(3); 1225 1226 cm = (struct aac_command *)arg; 1227 fib = cm->cm_fib; 1228 1229 /* find the s/g table */ 1230 sg = cm->cm_sgtable; 1231 1232 /* copy into the FIB */ 1233 if (sg != NULL) { 1234 sg->SgCount = nseg; 1235 for (i = 0; i < nseg; i++) { 1236 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1237 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1238 } 1239 /* update the FIB size for the s/g count */ 1240 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1241 } 1242 1243} 1244 1245/* 1246 * Map a command into controller-visible space. 1247 */ 1248static void 1249aac_map_command(struct aac_command *cm) 1250{ 1251 struct aac_softc *sc; 1252 1253 debug_called(2); 1254 1255 sc = cm->cm_sc; 1256 1257 /* don't map more than once */ 1258 if (cm->cm_flags & AAC_CMD_MAPPED) 1259 return; 1260 1261 if (cm->cm_datalen != 0) { 1262 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 1263 cm->cm_data, cm->cm_datalen, 1264 aac_map_command_sg, cm, 0); 1265 1266 if (cm->cm_flags & AAC_CMD_DATAIN) 1267 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1268 BUS_DMASYNC_PREREAD); 1269 if (cm->cm_flags & AAC_CMD_DATAOUT) 1270 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1271 BUS_DMASYNC_PREWRITE); 1272 } 1273 cm->cm_flags |= AAC_CMD_MAPPED; 1274} 1275 1276/* 1277 * Unmap a command from controller-visible space. 1278 */ 1279static void 1280aac_unmap_command(struct aac_command *cm) 1281{ 1282 struct aac_softc *sc; 1283 1284 debug_called(2); 1285 1286 sc = cm->cm_sc; 1287 1288 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1289 return; 1290 1291 if (cm->cm_datalen != 0) { 1292 if (cm->cm_flags & AAC_CMD_DATAIN) 1293 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1294 BUS_DMASYNC_POSTREAD); 1295 if (cm->cm_flags & AAC_CMD_DATAOUT) 1296 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1297 BUS_DMASYNC_POSTWRITE); 1298 1299 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1300 } 1301 cm->cm_flags &= ~AAC_CMD_MAPPED; 1302} 1303 1304/* 1305 * Hardware Interface 1306 */ 1307 1308/* 1309 * Initialise the adapter. 1310 */ 1311static void 1312aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1313{ 1314 struct aac_softc *sc; 1315 1316 debug_called(1); 1317 1318 sc = (struct aac_softc *)arg; 1319 1320 sc->aac_common_busaddr = segs[0].ds_addr; 1321} 1322 1323/* 1324 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1325 * firmware version 1.x are not compatible with this driver. 1326 */ 1327static int 1328aac_check_firmware(struct aac_softc *sc) 1329{ 1330 u_int32_t major, minor; 1331 1332 debug_called(1); 1333 1334 if (sc->quirks & AAC_QUIRK_PERC2QC) { 1335 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1336 NULL)) { 1337 device_printf(sc->aac_dev, 1338 "Error reading firmware version\n"); 1339 return (EIO); 1340 } 1341 1342 /* These numbers are stored as ASCII! */ 1343 major = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 4) & 0xff) - 0x30; 1344 minor = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 8) & 0xff) - 0x30; 1345 if (major == 1) { 1346 device_printf(sc->aac_dev, 1347 "Firmware version %d.%d is not supported.\n", 1348 major, minor); 1349 return (EINVAL); 1350 } 1351 } 1352 1353 return (0); 1354} 1355 1356static int 1357aac_init(struct aac_softc *sc) 1358{ 1359 struct aac_adapter_init *ip; 1360 time_t then; 1361 u_int32_t code; 1362 u_int8_t *qaddr; 1363 1364 debug_called(1); 1365 1366 /* 1367 * First wait for the adapter to come ready. 1368 */ 1369 then = time_second; 1370 do { 1371 code = AAC_GET_FWSTATUS(sc); 1372 if (code & AAC_SELF_TEST_FAILED) { 1373 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1374 return(ENXIO); 1375 } 1376 if (code & AAC_KERNEL_PANIC) { 1377 device_printf(sc->aac_dev, 1378 "FATAL: controller kernel panic\n"); 1379 return(ENXIO); 1380 } 1381 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1382 device_printf(sc->aac_dev, 1383 "FATAL: controller not coming ready, " 1384 "status %x\n", code); 1385 return(ENXIO); 1386 } 1387 } while (!(code & AAC_UP_AND_RUNNING)); 1388 1389 /* 1390 * Create DMA tag for the common structure and allocate it. 1391 */ 1392 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1393 1, 0, /* algnmnt, boundary */ 1394 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1395 BUS_SPACE_MAXADDR, /* highaddr */ 1396 NULL, NULL, /* filter, filterarg */ 1397 sizeof(struct aac_common), /* maxsize */ 1398 1, /* nsegments */ 1399 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1400 0, /* flags */ 1401 &sc->aac_common_dmat)) { 1402 device_printf(sc->aac_dev, 1403 "can't allocate common structure DMA tag\n"); 1404 return(ENOMEM); 1405 } 1406 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1407 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1408 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1409 return(ENOMEM); 1410 } 1411 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1412 sc->aac_common, sizeof(*sc->aac_common), aac_common_map, 1413 sc, 0); 1414 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1415 1416 /* 1417 * Fill in the init structure. This tells the adapter about the 1418 * physical location of various important shared data structures. 1419 */ 1420 ip = &sc->aac_common->ac_init; 1421 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1422 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1423 1424 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1425 offsetof(struct aac_common, ac_fibs); 1426 ip->AdapterFibsVirtualAddress = (u_int32_t)&sc->aac_common->ac_fibs[0]; 1427 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1428 ip->AdapterFibAlign = sizeof(struct aac_fib); 1429 1430 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1431 offsetof(struct aac_common, ac_printf); 1432 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1433 1434 /* The adapter assumes that pages are 4K in size */ 1435 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1436 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1437 1438 /* 1439 * Initialise FIB queues. Note that it appears that the layout of the 1440 * indexes and the segmentation of the entries may be mandated by the 1441 * adapter, which is only told about the base of the queue index fields. 1442 * 1443 * The initial values of the indices are assumed to inform the adapter 1444 * of the sizes of the respective queues, and theoretically it could 1445 * work out the entire layout of the queue structures from this. We 1446 * take the easy route and just lay this area out like everyone else 1447 * does. 1448 * 1449 * The Linux driver uses a much more complex scheme whereby several 1450 * header records are kept for each queue. We use a couple of generic 1451 * list manipulation functions which 'know' the size of each list by 1452 * virtue of a table. 1453 */ 1454 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1455 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1456 sc->aac_queues = (struct aac_queue_table *)qaddr; 1457 ip->CommHeaderAddress = sc->aac_common_busaddr + 1458 ((u_int32_t)sc->aac_queues - 1459 (u_int32_t)sc->aac_common); 1460 1461 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1462 AAC_HOST_NORM_CMD_ENTRIES; 1463 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1464 AAC_HOST_NORM_CMD_ENTRIES; 1465 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1466 AAC_HOST_HIGH_CMD_ENTRIES; 1467 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1468 AAC_HOST_HIGH_CMD_ENTRIES; 1469 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1470 AAC_ADAP_NORM_CMD_ENTRIES; 1471 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1472 AAC_ADAP_NORM_CMD_ENTRIES; 1473 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1474 AAC_ADAP_HIGH_CMD_ENTRIES; 1475 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1476 AAC_ADAP_HIGH_CMD_ENTRIES; 1477 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1478 AAC_HOST_NORM_RESP_ENTRIES; 1479 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1480 AAC_HOST_NORM_RESP_ENTRIES; 1481 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1482 AAC_HOST_HIGH_RESP_ENTRIES; 1483 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1484 AAC_HOST_HIGH_RESP_ENTRIES; 1485 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1486 AAC_ADAP_NORM_RESP_ENTRIES; 1487 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1488 AAC_ADAP_NORM_RESP_ENTRIES; 1489 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1490 AAC_ADAP_HIGH_RESP_ENTRIES; 1491 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1492 AAC_ADAP_HIGH_RESP_ENTRIES; 1493 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1494 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1495 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1496 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1497 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1498 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1499 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1500 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1501 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1502 &sc->aac_queues->qt_HostNormRespQueue[0]; 1503 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1504 &sc->aac_queues->qt_HostHighRespQueue[0]; 1505 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1506 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1507 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1508 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1509 1510 /* 1511 * Do controller-type-specific initialisation 1512 */ 1513 switch (sc->aac_hwif) { 1514 case AAC_HWIF_I960RX: 1515 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1516 break; 1517 } 1518 1519 /* 1520 * Give the init structure to the controller. 1521 */ 1522 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1523 sc->aac_common_busaddr + 1524 offsetof(struct aac_common, ac_init), 0, 0, 0, 1525 NULL)) { 1526 device_printf(sc->aac_dev, 1527 "error establishing init structure\n"); 1528 return(EIO); 1529 } 1530 1531 return(0); 1532} 1533 1534/* 1535 * Send a synchronous command to the controller and wait for a result. 1536 */ 1537static int 1538aac_sync_command(struct aac_softc *sc, u_int32_t command, 1539 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1540 u_int32_t *sp) 1541{ 1542 time_t then; 1543 u_int32_t status; 1544 1545 debug_called(3); 1546 1547 /* populate the mailbox */ 1548 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1549 1550 /* ensure the sync command doorbell flag is cleared */ 1551 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1552 1553 /* then set it to signal the adapter */ 1554 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1555 1556 /* spin waiting for the command to complete */ 1557 then = time_second; 1558 do { 1559 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1560 debug(2, "timed out"); 1561 return(EIO); 1562 } 1563 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1564 1565 /* clear the completion flag */ 1566 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1567 1568 /* get the command status */ 1569 status = AAC_GET_MAILBOXSTATUS(sc); 1570 if (sp != NULL) 1571 *sp = status; 1572 return(0); 1573} 1574 1575/* 1576 * Grab the sync fib area. 1577 */ 1578int 1579aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1580{ 1581 1582 /* 1583 * If the force flag is set, the system is shutting down, or in 1584 * trouble. Ignore the mutex. 1585 */ 1586 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1587 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1588 1589 *fib = &sc->aac_common->ac_sync_fib; 1590 1591 return (1); 1592} 1593 1594/* 1595 * Release the sync fib area. 1596 */ 1597void 1598aac_release_sync_fib(struct aac_softc *sc) 1599{ 1600 1601 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1602} 1603 1604/* 1605 * Send a synchronous FIB to the controller and wait for a result. 1606 */ 1607int 1608aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1609 struct aac_fib *fib, u_int16_t datasize) 1610{ 1611 debug_called(3); 1612 1613 if (datasize > AAC_FIB_DATASIZE) 1614 return(EINVAL); 1615 1616 /* 1617 * Set up the sync FIB 1618 */ 1619 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1620 AAC_FIBSTATE_INITIALISED | 1621 AAC_FIBSTATE_EMPTY; 1622 fib->Header.XferState |= xferstate; 1623 fib->Header.Command = command; 1624 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1625 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1626 fib->Header.SenderSize = sizeof(struct aac_fib); 1627 fib->Header.SenderFibAddress = (u_int32_t)fib; 1628 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1629 offsetof(struct aac_common, 1630 ac_sync_fib); 1631 1632 /* 1633 * Give the FIB to the controller, wait for a response. 1634 */ 1635 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1636 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1637 debug(2, "IO error"); 1638 return(EIO); 1639 } 1640 1641 return (0); 1642} 1643 1644/* 1645 * Adapter-space FIB queue manipulation 1646 * 1647 * Note that the queue implementation here is a little funky; neither the PI or 1648 * CI will ever be zero. This behaviour is a controller feature. 1649 */ 1650static struct { 1651 int size; 1652 int notify; 1653} aac_qinfo[] = { 1654 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1655 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1656 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1657 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1658 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1659 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1660 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1661 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1662}; 1663 1664/* 1665 * Atomically insert an entry into the nominated queue, returns 0 on success or 1666 * EBUSY if the queue is full. 1667 * 1668 * Note: it would be more efficient to defer notifying the controller in 1669 * the case where we may be inserting several entries in rapid succession, 1670 * but implementing this usefully may be difficult (it would involve a 1671 * separate queue/notify interface). 1672 */ 1673static int 1674aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1675{ 1676 u_int32_t pi, ci; 1677 int s, error; 1678 u_int32_t fib_size; 1679 u_int32_t fib_addr; 1680 1681 debug_called(3); 1682 1683 fib_size = cm->cm_fib->Header.Size; 1684 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1685 1686 s = splbio(); 1687 1688 /* get the producer/consumer indices */ 1689 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1690 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1691 1692 /* wrap the queue? */ 1693 if (pi >= aac_qinfo[queue].size) 1694 pi = 0; 1695 1696 /* check for queue full */ 1697 if ((pi + 1) == ci) { 1698 error = EBUSY; 1699 goto out; 1700 } 1701 1702 /* populate queue entry */ 1703 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1704 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1705 1706 /* update producer index */ 1707 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1708 1709 /* 1710 * To avoid a race with its completion interrupt, place this command on 1711 * the busy queue prior to advertising it to the controller. 1712 */ 1713 aac_enqueue_busy(cm); 1714 1715 /* notify the adapter if we know how */ 1716 if (aac_qinfo[queue].notify != 0) 1717 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1718 1719 error = 0; 1720 1721out: 1722 splx(s); 1723 return(error); 1724} 1725 1726/* 1727 * Atomically remove one entry from the nominated queue, returns 0 on 1728 * success or ENOENT if the queue is empty. 1729 */ 1730static int 1731aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1732 struct aac_fib **fib_addr) 1733{ 1734 u_int32_t pi, ci; 1735 int s, error; 1736 int notify; 1737 1738 debug_called(3); 1739 1740 s = splbio(); 1741 1742 /* get the producer/consumer indices */ 1743 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1744 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1745 1746 /* check for queue empty */ 1747 if (ci == pi) { 1748 error = ENOENT; 1749 goto out; 1750 } 1751 1752 notify = 0; 1753 if (ci == pi + 1) 1754 notify++; 1755 1756 /* wrap the queue? */ 1757 if (ci >= aac_qinfo[queue].size) 1758 ci = 0; 1759 1760 /* fetch the entry */ 1761 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1762 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + 1763 ci)->aq_fib_addr; 1764 1765 /* 1766 * Is this a fast response? If it is, update the fib fields in 1767 * local memory so the whole fib doesn't have to be DMA'd back up. 1768 */ 1769 if (*(uintptr_t *)fib_addr & 0x01) { 1770 *(uintptr_t *)fib_addr &= ~0x01; 1771 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1772 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1773 } 1774 /* update consumer index */ 1775 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1776 1777 /* if we have made the queue un-full, notify the adapter */ 1778 if (notify && (aac_qinfo[queue].notify != 0)) 1779 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1780 error = 0; 1781 1782out: 1783 splx(s); 1784 return(error); 1785} 1786 1787/* 1788 * Put our response to an Adapter Initialed Fib on the response queue 1789 */ 1790static int 1791aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1792{ 1793 u_int32_t pi, ci; 1794 int s, error; 1795 u_int32_t fib_size; 1796 u_int32_t fib_addr; 1797 1798 debug_called(1); 1799 1800 /* Tell the adapter where the FIB is */ 1801 fib_size = fib->Header.Size; 1802 fib_addr = fib->Header.SenderFibAddress; 1803 fib->Header.ReceiverFibAddress = fib_addr; 1804 1805 s = splbio(); 1806 1807 /* get the producer/consumer indices */ 1808 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1809 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1810 1811 /* wrap the queue? */ 1812 if (pi >= aac_qinfo[queue].size) 1813 pi = 0; 1814 1815 /* check for queue full */ 1816 if ((pi + 1) == ci) { 1817 error = EBUSY; 1818 goto out; 1819 } 1820 1821 /* populate queue entry */ 1822 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1823 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1824 1825 /* update producer index */ 1826 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1827 1828 /* notify the adapter if we know how */ 1829 if (aac_qinfo[queue].notify != 0) 1830 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1831 1832 error = 0; 1833 1834out: 1835 splx(s); 1836 return(error); 1837} 1838 1839/* 1840 * Check for commands that have been outstanding for a suspiciously long time, 1841 * and complain about them. 1842 */ 1843static void 1844aac_timeout(struct aac_softc *sc) 1845{ 1846 int s; 1847 struct aac_command *cm; 1848 time_t deadline; 1849 1850 /* 1851 * Traverse the busy command list, bitch about late commands once 1852 * only. 1853 */ 1854 deadline = time_second - AAC_CMD_TIMEOUT; 1855 s = splbio(); 1856 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1857 if ((cm->cm_timestamp < deadline) 1858 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1859 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1860 device_printf(sc->aac_dev, 1861 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 1862 cm, (int)(time_second-cm->cm_timestamp)); 1863 AAC_PRINT_FIB(sc, cm->cm_fib); 1864 } 1865 } 1866 splx(s); 1867 1868 return; 1869} 1870 1871/* 1872 * Interface Function Vectors 1873 */ 1874 1875/* 1876 * Read the current firmware status word. 1877 */ 1878static int 1879aac_sa_get_fwstatus(struct aac_softc *sc) 1880{ 1881 debug_called(3); 1882 1883 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 1884} 1885 1886static int 1887aac_rx_get_fwstatus(struct aac_softc *sc) 1888{ 1889 debug_called(3); 1890 1891 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 1892} 1893 1894static int 1895aac_fa_get_fwstatus(struct aac_softc *sc) 1896{ 1897 int val; 1898 1899 debug_called(3); 1900 1901 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 1902 return (val); 1903} 1904 1905/* 1906 * Notify the controller of a change in a given queue 1907 */ 1908 1909static void 1910aac_sa_qnotify(struct aac_softc *sc, int qbit) 1911{ 1912 debug_called(3); 1913 1914 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 1915} 1916 1917static void 1918aac_rx_qnotify(struct aac_softc *sc, int qbit) 1919{ 1920 debug_called(3); 1921 1922 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 1923} 1924 1925static void 1926aac_fa_qnotify(struct aac_softc *sc, int qbit) 1927{ 1928 debug_called(3); 1929 1930 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 1931 AAC_FA_HACK(sc); 1932} 1933 1934/* 1935 * Get the interrupt reason bits 1936 */ 1937static int 1938aac_sa_get_istatus(struct aac_softc *sc) 1939{ 1940 debug_called(3); 1941 1942 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 1943} 1944 1945static int 1946aac_rx_get_istatus(struct aac_softc *sc) 1947{ 1948 debug_called(3); 1949 1950 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 1951} 1952 1953static int 1954aac_fa_get_istatus(struct aac_softc *sc) 1955{ 1956 int val; 1957 1958 debug_called(3); 1959 1960 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 1961 return (val); 1962} 1963 1964/* 1965 * Clear some interrupt reason bits 1966 */ 1967static void 1968aac_sa_clear_istatus(struct aac_softc *sc, int mask) 1969{ 1970 debug_called(3); 1971 1972 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 1973} 1974 1975static void 1976aac_rx_clear_istatus(struct aac_softc *sc, int mask) 1977{ 1978 debug_called(3); 1979 1980 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 1981} 1982 1983static void 1984aac_fa_clear_istatus(struct aac_softc *sc, int mask) 1985{ 1986 debug_called(3); 1987 1988 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 1989 AAC_FA_HACK(sc); 1990} 1991 1992/* 1993 * Populate the mailbox and set the command word 1994 */ 1995static void 1996aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 1997 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 1998{ 1999 debug_called(4); 2000 2001 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2002 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2003 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2004 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2005 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2006} 2007 2008static void 2009aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2010 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2011{ 2012 debug_called(4); 2013 2014 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2015 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2016 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2017 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2018 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2019} 2020 2021static void 2022aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2023 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2024{ 2025 debug_called(4); 2026 2027 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2028 AAC_FA_HACK(sc); 2029 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2030 AAC_FA_HACK(sc); 2031 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2032 AAC_FA_HACK(sc); 2033 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2034 AAC_FA_HACK(sc); 2035 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2036 AAC_FA_HACK(sc); 2037} 2038 2039/* 2040 * Fetch the immediate command status word 2041 */ 2042static int 2043aac_sa_get_mailboxstatus(struct aac_softc *sc) 2044{ 2045 debug_called(4); 2046 2047 return(AAC_GETREG4(sc, AAC_SA_MAILBOX)); 2048} 2049 2050static int 2051aac_rx_get_mailboxstatus(struct aac_softc *sc) 2052{ 2053 debug_called(4); 2054 2055 return(AAC_GETREG4(sc, AAC_RX_MAILBOX)); 2056} 2057 2058static int 2059aac_fa_get_mailboxstatus(struct aac_softc *sc) 2060{ 2061 int val; 2062 2063 debug_called(4); 2064 2065 val = AAC_GETREG4(sc, AAC_FA_MAILBOX); 2066 return (val); 2067} 2068 2069/* 2070 * Set/clear interrupt masks 2071 */ 2072static void 2073aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2074{ 2075 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2076 2077 if (enable) { 2078 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2079 } else { 2080 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2081 } 2082} 2083 2084static void 2085aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2086{ 2087 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2088 2089 if (enable) { 2090 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2091 } else { 2092 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2093 } 2094} 2095 2096static void 2097aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2098{ 2099 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2100 2101 if (enable) { 2102 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2103 AAC_FA_HACK(sc); 2104 } else { 2105 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2106 AAC_FA_HACK(sc); 2107 } 2108} 2109 2110/* 2111 * Debugging and Diagnostics 2112 */ 2113 2114/* 2115 * Print some information about the controller. 2116 */ 2117static void 2118aac_describe_controller(struct aac_softc *sc) 2119{ 2120 struct aac_fib *fib; 2121 struct aac_adapter_info *info; 2122 2123 debug_called(2); 2124 2125 aac_alloc_sync_fib(sc, &fib, 0); 2126 2127 fib->data[0] = 0; 2128 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2129 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2130 aac_release_sync_fib(sc); 2131 return; 2132 } 2133 info = (struct aac_adapter_info *)&fib->data[0]; 2134 2135 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2136 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2137 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2138 aac_describe_code(aac_battery_platform, 2139 info->batteryPlatform)); 2140 2141 /* save the kernel revision structure for later use */ 2142 sc->aac_revision = info->KernelRevision; 2143 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2144 info->KernelRevision.external.comp.major, 2145 info->KernelRevision.external.comp.minor, 2146 info->KernelRevision.external.comp.dash, 2147 info->KernelRevision.buildNumber, 2148 (u_int32_t)(info->SerialNumber & 0xffffff)); 2149 2150 aac_release_sync_fib(sc); 2151} 2152 2153/* 2154 * Look up a text description of a numeric error code and return a pointer to 2155 * same. 2156 */ 2157static char * 2158aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2159{ 2160 int i; 2161 2162 for (i = 0; table[i].string != NULL; i++) 2163 if (table[i].code == code) 2164 return(table[i].string); 2165 return(table[i + 1].string); 2166} 2167 2168/* 2169 * Management Interface 2170 */ 2171 2172static int 2173aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2174{ 2175 struct aac_softc *sc; 2176 2177 debug_called(2); 2178 2179 sc = dev->si_drv1; 2180 2181 /* Check to make sure the device isn't already open */ 2182 if (sc->aac_state & AAC_STATE_OPEN) { 2183 return EBUSY; 2184 } 2185 sc->aac_state |= AAC_STATE_OPEN; 2186 2187 return 0; 2188} 2189 2190static int 2191aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2192{ 2193 struct aac_softc *sc; 2194 2195 debug_called(2); 2196 2197 sc = dev->si_drv1; 2198 2199 /* Mark this unit as no longer open */ 2200 sc->aac_state &= ~AAC_STATE_OPEN; 2201 2202 return 0; 2203} 2204 2205static int 2206aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2207{ 2208 union aac_statrequest *as; 2209 struct aac_softc *sc; 2210 int error = 0; 2211 int i; 2212 2213 debug_called(2); 2214 2215 as = (union aac_statrequest *)arg; 2216 sc = dev->si_drv1; 2217 2218 switch (cmd) { 2219 case AACIO_STATS: 2220 switch (as->as_item) { 2221 case AACQ_FREE: 2222 case AACQ_BIO: 2223 case AACQ_READY: 2224 case AACQ_BUSY: 2225 case AACQ_COMPLETE: 2226 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2227 sizeof(struct aac_qstat)); 2228 break; 2229 default: 2230 error = ENOENT; 2231 break; 2232 } 2233 break; 2234 2235 case FSACTL_SENDFIB: 2236 arg = *(caddr_t*)arg; 2237 case FSACTL_LNX_SENDFIB: 2238 debug(1, "FSACTL_SENDFIB"); 2239 error = aac_ioctl_sendfib(sc, arg); 2240 break; 2241 case FSACTL_AIF_THREAD: 2242 case FSACTL_LNX_AIF_THREAD: 2243 debug(1, "FSACTL_AIF_THREAD"); 2244 error = EINVAL; 2245 break; 2246 case FSACTL_OPEN_GET_ADAPTER_FIB: 2247 arg = *(caddr_t*)arg; 2248 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2249 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2250 /* 2251 * Pass the caller out an AdapterFibContext. 2252 * 2253 * Note that because we only support one opener, we 2254 * basically ignore this. Set the caller's context to a magic 2255 * number just in case. 2256 * 2257 * The Linux code hands the driver a pointer into kernel space, 2258 * and then trusts it when the caller hands it back. Aiee! 2259 * Here, we give it the proc pointer of the per-adapter aif 2260 * thread. It's only used as a sanity check in other calls. 2261 */ 2262 i = (int)sc->aifthread; 2263 error = copyout(&i, arg, sizeof(i)); 2264 break; 2265 case FSACTL_GET_NEXT_ADAPTER_FIB: 2266 arg = *(caddr_t*)arg; 2267 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2268 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2269 error = aac_getnext_aif(sc, arg); 2270 break; 2271 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2272 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2273 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2274 /* don't do anything here */ 2275 break; 2276 case FSACTL_MINIPORT_REV_CHECK: 2277 arg = *(caddr_t*)arg; 2278 case FSACTL_LNX_MINIPORT_REV_CHECK: 2279 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2280 error = aac_rev_check(sc, arg); 2281 break; 2282 case FSACTL_QUERY_DISK: 2283 arg = *(caddr_t*)arg; 2284 case FSACTL_LNX_QUERY_DISK: 2285 debug(1, "FSACTL_QUERY_DISK"); 2286 error = aac_query_disk(sc, arg); 2287 break; 2288 case FSACTL_DELETE_DISK: 2289 case FSACTL_LNX_DELETE_DISK: 2290 /* 2291 * We don't trust the underland to tell us when to delete a 2292 * container, rather we rely on an AIF coming from the 2293 * controller 2294 */ 2295 error = 0; 2296 break; 2297 default: 2298 debug(1, "unsupported cmd 0x%lx\n", cmd); 2299 error = EINVAL; 2300 break; 2301 } 2302 return(error); 2303} 2304 2305static int 2306aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2307{ 2308 struct aac_softc *sc; 2309 int revents; 2310 2311 sc = dev->si_drv1; 2312 revents = 0; 2313 2314 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2315 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2316 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2317 revents |= poll_events & (POLLIN | POLLRDNORM); 2318 } 2319 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2320 2321 if (revents == 0) { 2322 if (poll_events & (POLLIN | POLLRDNORM)) 2323 selrecord(td, &sc->rcv_select); 2324 } 2325 2326 return (revents); 2327} 2328 2329/* 2330 * Send a FIB supplied from userspace 2331 */ 2332static int 2333aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2334{ 2335 struct aac_command *cm; 2336 int size, error; 2337 2338 debug_called(2); 2339 2340 cm = NULL; 2341 2342 /* 2343 * Get a command 2344 */ 2345 if (aac_alloc_command(sc, &cm)) { 2346 error = EBUSY; 2347 goto out; 2348 } 2349 2350 /* 2351 * Fetch the FIB header, then re-copy to get data as well. 2352 */ 2353 if ((error = copyin(ufib, cm->cm_fib, 2354 sizeof(struct aac_fib_header))) != 0) 2355 goto out; 2356 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2357 if (size > sizeof(struct aac_fib)) { 2358 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2359 size, sizeof(struct aac_fib)); 2360 size = sizeof(struct aac_fib); 2361 } 2362 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2363 goto out; 2364 cm->cm_fib->Header.Size = size; 2365 cm->cm_timestamp = time_second; 2366 2367 /* 2368 * Pass the FIB to the controller, wait for it to complete. 2369 */ 2370 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2371 device_printf(sc->aac_dev, 2372 "aac_wait_command return %d\n", error); 2373 goto out; 2374 } 2375 2376 /* 2377 * Copy the FIB and data back out to the caller. 2378 */ 2379 size = cm->cm_fib->Header.Size; 2380 if (size > sizeof(struct aac_fib)) { 2381 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2382 size, sizeof(struct aac_fib)); 2383 size = sizeof(struct aac_fib); 2384 } 2385 error = copyout(cm->cm_fib, ufib, size); 2386 2387out: 2388 if (cm != NULL) { 2389 aac_release_command(cm); 2390 } 2391 return(error); 2392} 2393 2394/* 2395 * Handle an AIF sent to us by the controller; queue it for later reference. 2396 * If the queue fills up, then drop the older entries. 2397 */ 2398static void 2399aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2400{ 2401 struct aac_aif_command *aif; 2402 struct aac_container *co, *co_next; 2403 struct aac_mntinfo *mi; 2404 struct aac_mntinforesp *mir = NULL; 2405 u_int16_t rsize; 2406 int next, found; 2407 int added = 0, i = 0; 2408 2409 debug_called(2); 2410 2411 aif = (struct aac_aif_command*)&fib->data[0]; 2412 aac_print_aif(sc, aif); 2413 2414 /* Is it an event that we should care about? */ 2415 switch (aif->command) { 2416 case AifCmdEventNotify: 2417 switch (aif->data.EN.type) { 2418 case AifEnAddContainer: 2419 case AifEnDeleteContainer: 2420 /* 2421 * A container was added or deleted, but the message 2422 * doesn't tell us anything else! Re-enumerate the 2423 * containers and sort things out. 2424 */ 2425 aac_alloc_sync_fib(sc, &fib, 0); 2426 mi = (struct aac_mntinfo *)&fib->data[0]; 2427 do { 2428 /* 2429 * Ask the controller for its containers one at 2430 * a time. 2431 * XXX What if the controller's list changes 2432 * midway through this enumaration? 2433 * XXX This should be done async. 2434 */ 2435 bzero(mi, sizeof(struct aac_mntinfo)); 2436 mi->Command = VM_NameServe; 2437 mi->MntType = FT_FILESYS; 2438 mi->MntCount = i; 2439 rsize = sizeof(mir); 2440 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2441 sizeof(struct aac_mntinfo))) { 2442 debug(2, "Error probing container %d\n", 2443 i); 2444 continue; 2445 } 2446 mir = (struct aac_mntinforesp *)&fib->data[0]; 2447 /* 2448 * Check the container against our list. 2449 * co->co_found was already set to 0 in a 2450 * previous run. 2451 */ 2452 if ((mir->Status == ST_OK) && 2453 (mir->MntTable[0].VolType != CT_NONE)) { 2454 found = 0; 2455 TAILQ_FOREACH(co, 2456 &sc->aac_container_tqh, 2457 co_link) { 2458 if (co->co_mntobj.ObjectId == 2459 mir->MntTable[0].ObjectId) { 2460 co->co_found = 1; 2461 found = 1; 2462 break; 2463 } 2464 } 2465 /* 2466 * If the container matched, continue 2467 * in the list. 2468 */ 2469 if (found) { 2470 i++; 2471 continue; 2472 } 2473 2474 /* 2475 * This is a new container. Do all the 2476 * appropriate things to set it up. 2477 */ 2478 aac_add_container(sc, mir, 1); 2479 added = 1; 2480 } 2481 i++; 2482 } while ((i < mir->MntRespCount) && 2483 (i < AAC_MAX_CONTAINERS)); 2484 aac_release_sync_fib(sc); 2485 2486 /* 2487 * Go through our list of containers and see which ones 2488 * were not marked 'found'. Since the controller didn't 2489 * list them they must have been deleted. Do the 2490 * appropriate steps to destroy the device. Also reset 2491 * the co->co_found field. 2492 */ 2493 co = TAILQ_FIRST(&sc->aac_container_tqh); 2494 while (co != NULL) { 2495 if (co->co_found == 0) { 2496 device_delete_child(sc->aac_dev, 2497 co->co_disk); 2498 co_next = TAILQ_NEXT(co, co_link); 2499 AAC_LOCK_ACQUIRE(&sc-> 2500 aac_container_lock); 2501 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2502 co_link); 2503 AAC_LOCK_RELEASE(&sc-> 2504 aac_container_lock); 2505 FREE(co, M_AACBUF); 2506 co = co_next; 2507 } else { 2508 co->co_found = 0; 2509 co = TAILQ_NEXT(co, co_link); 2510 } 2511 } 2512 2513 /* Attach the newly created containers */ 2514 if (added) 2515 bus_generic_attach(sc->aac_dev); 2516 2517 break; 2518 2519 default: 2520 break; 2521 } 2522 2523 default: 2524 break; 2525 } 2526 2527 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2528 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2529 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2530 if (next != sc->aac_aifq_tail) { 2531 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2532 sc->aac_aifq_head = next; 2533 2534 /* On the off chance that someone is sleeping for an aif... */ 2535 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2536 wakeup(sc->aac_aifq); 2537 /* Wakeup any poll()ers */ 2538 selwakeup(&sc->rcv_select); 2539 } 2540 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2541 2542 return; 2543} 2544 2545/* 2546 * Return the Revision of the driver to userspace and check to see if the 2547 * userspace app is possibly compatible. This is extremely bogus since 2548 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2549 * returning what the card reported. 2550 */ 2551static int 2552aac_rev_check(struct aac_softc *sc, caddr_t udata) 2553{ 2554 struct aac_rev_check rev_check; 2555 struct aac_rev_check_resp rev_check_resp; 2556 int error = 0; 2557 2558 debug_called(2); 2559 2560 /* 2561 * Copyin the revision struct from userspace 2562 */ 2563 if ((error = copyin(udata, (caddr_t)&rev_check, 2564 sizeof(struct aac_rev_check))) != 0) { 2565 return error; 2566 } 2567 2568 debug(2, "Userland revision= %d\n", 2569 rev_check.callingRevision.buildNumber); 2570 2571 /* 2572 * Doctor up the response struct. 2573 */ 2574 rev_check_resp.possiblyCompatible = 1; 2575 rev_check_resp.adapterSWRevision.external.ul = 2576 sc->aac_revision.external.ul; 2577 rev_check_resp.adapterSWRevision.buildNumber = 2578 sc->aac_revision.buildNumber; 2579 2580 return(copyout((caddr_t)&rev_check_resp, udata, 2581 sizeof(struct aac_rev_check_resp))); 2582} 2583 2584/* 2585 * Pass the caller the next AIF in their queue 2586 */ 2587static int 2588aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2589{ 2590 struct get_adapter_fib_ioctl agf; 2591 int error, s; 2592 2593 debug_called(2); 2594 2595 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2596 2597 /* 2598 * Check the magic number that we gave the caller. 2599 */ 2600 if (agf.AdapterFibContext != (int)sc->aifthread) { 2601 error = EFAULT; 2602 } else { 2603 2604 s = splbio(); 2605 error = aac_return_aif(sc, agf.AifFib); 2606 2607 if ((error == EAGAIN) && (agf.Wait)) { 2608 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2609 while (error == EAGAIN) { 2610 error = tsleep(sc->aac_aifq, PRIBIO | 2611 PCATCH, "aacaif", 0); 2612 if (error == 0) 2613 error = aac_return_aif(sc, 2614 agf.AifFib); 2615 } 2616 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2617 } 2618 splx(s); 2619 } 2620 } 2621 return(error); 2622} 2623 2624/* 2625 * Hand the next AIF off the top of the queue out to userspace. 2626 */ 2627static int 2628aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2629{ 2630 int error; 2631 2632 debug_called(2); 2633 2634 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2635 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2636 error = EAGAIN; 2637 } else { 2638 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2639 sizeof(struct aac_aif_command)); 2640 if (error) 2641 device_printf(sc->aac_dev, 2642 "aac_return_aif: copyout returned %d\n", error); 2643 if (!error) 2644 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2645 AAC_AIFQ_LENGTH; 2646 } 2647 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2648 return(error); 2649} 2650 2651/* 2652 * Give the userland some information about the container. The AAC arch 2653 * expects the driver to be a SCSI passthrough type driver, so it expects 2654 * the containers to have b:t:l numbers. Fake it. 2655 */ 2656static int 2657aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2658{ 2659 struct aac_query_disk query_disk; 2660 struct aac_container *co; 2661 struct aac_disk *disk; 2662 int error, id; 2663 2664 debug_called(2); 2665 2666 disk = NULL; 2667 2668 error = copyin(uptr, (caddr_t)&query_disk, 2669 sizeof(struct aac_query_disk)); 2670 if (error) 2671 return (error); 2672 2673 id = query_disk.ContainerNumber; 2674 if (id == -1) 2675 return (EINVAL); 2676 2677 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2678 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2679 if (co->co_mntobj.ObjectId == id) 2680 break; 2681 } 2682 2683 if (co == NULL) { 2684 query_disk.Valid = 0; 2685 query_disk.Locked = 0; 2686 query_disk.Deleted = 1; /* XXX is this right? */ 2687 } else { 2688 disk = device_get_softc(co->co_disk); 2689 query_disk.Valid = 1; 2690 query_disk.Locked = 2691 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2692 query_disk.Deleted = 0; 2693 query_disk.Bus = device_get_unit(sc->aac_dev); 2694 query_disk.Target = disk->unit; 2695 query_disk.Lun = 0; 2696 query_disk.UnMapped = 0; 2697 bcopy(disk->ad_dev_t->si_name, 2698 &query_disk.diskDeviceName[0], 10); 2699 } 2700 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2701 2702 error = copyout((caddr_t)&query_disk, uptr, 2703 sizeof(struct aac_query_disk)); 2704 2705 return (error); 2706} 2707 2708static void 2709aac_get_bus_info(struct aac_softc *sc) 2710{ 2711 struct aac_fib *fib; 2712 struct aac_ctcfg *c_cmd; 2713 struct aac_ctcfg_resp *c_resp; 2714 struct aac_vmioctl *vmi; 2715 struct aac_vmi_businf_resp *vmi_resp; 2716 struct aac_getbusinf businfo; 2717 struct aac_sim *caminf; 2718 device_t child; 2719 int i, found, error; 2720 2721 aac_alloc_sync_fib(sc, &fib, 0); 2722 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2723 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2724 2725 c_cmd->Command = VM_ContainerConfig; 2726 c_cmd->cmd = CT_GET_SCSI_METHOD; 2727 c_cmd->param = 0; 2728 2729 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2730 sizeof(struct aac_ctcfg)); 2731 if (error) { 2732 device_printf(sc->aac_dev, "Error %d sending " 2733 "VM_ContainerConfig command\n", error); 2734 aac_release_sync_fib(sc); 2735 return; 2736 } 2737 2738 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2739 if (c_resp->Status != ST_OK) { 2740 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2741 c_resp->Status); 2742 aac_release_sync_fib(sc); 2743 return; 2744 } 2745 2746 sc->scsi_method_id = c_resp->param; 2747 2748 vmi = (struct aac_vmioctl *)&fib->data[0]; 2749 bzero(vmi, sizeof(struct aac_vmioctl)); 2750 2751 vmi->Command = VM_Ioctl; 2752 vmi->ObjType = FT_DRIVE; 2753 vmi->MethId = sc->scsi_method_id; 2754 vmi->ObjId = 0; 2755 vmi->IoctlCmd = GetBusInfo; 2756 2757 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2758 sizeof(struct aac_vmioctl)); 2759 if (error) { 2760 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2761 error); 2762 aac_release_sync_fib(sc); 2763 return; 2764 } 2765 2766 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2767 if (vmi_resp->Status != ST_OK) { 2768 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2769 vmi_resp->Status); 2770 aac_release_sync_fib(sc); 2771 return; 2772 } 2773 2774 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2775 aac_release_sync_fib(sc); 2776 2777 found = 0; 2778 for (i = 0; i < businfo.BusCount; i++) { 2779 if (businfo.BusValid[i] != AAC_BUS_VALID) 2780 continue; 2781 2782 MALLOC(caminf, struct aac_sim *, 2783 sizeof(struct aac_sim), M_AACBUF, M_NOWAIT | M_ZERO); 2784 if (caminf == NULL) 2785 continue; 2786 2787 child = device_add_child(sc->aac_dev, "aacp", -1); 2788 if (child == NULL) { 2789 device_printf(sc->aac_dev, "device_add_child failed\n"); 2790 continue; 2791 } 2792 2793 caminf->TargetsPerBus = businfo.TargetsPerBus; 2794 caminf->BusNumber = i; 2795 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2796 caminf->aac_sc = sc; 2797 2798 device_set_ivars(child, caminf); 2799 device_set_desc(child, "SCSI Passthrough Bus"); 2800 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2801 2802 found = 1; 2803 } 2804 2805 if (found) 2806 bus_generic_attach(sc->aac_dev); 2807 2808 return; 2809} 2810