aac.c revision 111528
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 111528 2003-02-26 03:15:42Z 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 73static void aac_startup(void *arg); 74static void aac_add_container(struct aac_softc *sc, 75 struct aac_mntinforesp *mir, int f); 76static void aac_get_bus_info(struct aac_softc *sc); 77 78/* Command Processing */ 79static void aac_timeout(struct aac_softc *sc); 80static int aac_start(struct aac_command *cm); 81static void aac_complete(void *context, int pending); 82static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 83static void aac_bio_complete(struct aac_command *cm); 84static int aac_wait_command(struct aac_command *cm, int timeout); 85static void aac_command_thread(struct aac_softc *sc); 86 87/* Command Buffer Management */ 88static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 89 int nseg, int error); 90static int aac_alloc_commands(struct aac_softc *sc); 91static void aac_free_commands(struct aac_softc *sc); 92static void aac_map_command(struct aac_command *cm); 93static void aac_unmap_command(struct aac_command *cm); 94 95/* Hardware Interface */ 96static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 97 int error); 98static int aac_check_firmware(struct aac_softc *sc); 99static int aac_init(struct aac_softc *sc); 100static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 101 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 102 u_int32_t arg3, u_int32_t *sp); 103static int aac_enqueue_fib(struct aac_softc *sc, int queue, 104 struct aac_command *cm); 105static int aac_dequeue_fib(struct aac_softc *sc, int queue, 106 u_int32_t *fib_size, struct aac_fib **fib_addr); 107static int aac_enqueue_response(struct aac_softc *sc, int queue, 108 struct aac_fib *fib); 109 110/* Falcon/PPC interface */ 111static int aac_fa_get_fwstatus(struct aac_softc *sc); 112static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 113static int aac_fa_get_istatus(struct aac_softc *sc); 114static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 115static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 116 u_int32_t arg0, u_int32_t arg1, 117 u_int32_t arg2, u_int32_t arg3); 118static int aac_fa_get_mailboxstatus(struct aac_softc *sc); 119static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 120 121struct aac_interface aac_fa_interface = { 122 aac_fa_get_fwstatus, 123 aac_fa_qnotify, 124 aac_fa_get_istatus, 125 aac_fa_clear_istatus, 126 aac_fa_set_mailbox, 127 aac_fa_get_mailboxstatus, 128 aac_fa_set_interrupts 129}; 130 131/* StrongARM interface */ 132static int aac_sa_get_fwstatus(struct aac_softc *sc); 133static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 134static int aac_sa_get_istatus(struct aac_softc *sc); 135static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 136static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 137 u_int32_t arg0, u_int32_t arg1, 138 u_int32_t arg2, u_int32_t arg3); 139static int aac_sa_get_mailboxstatus(struct aac_softc *sc); 140static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 141 142struct aac_interface aac_sa_interface = { 143 aac_sa_get_fwstatus, 144 aac_sa_qnotify, 145 aac_sa_get_istatus, 146 aac_sa_clear_istatus, 147 aac_sa_set_mailbox, 148 aac_sa_get_mailboxstatus, 149 aac_sa_set_interrupts 150}; 151 152/* i960Rx interface */ 153static int aac_rx_get_fwstatus(struct aac_softc *sc); 154static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 155static int aac_rx_get_istatus(struct aac_softc *sc); 156static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 157static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 158 u_int32_t arg0, u_int32_t arg1, 159 u_int32_t arg2, u_int32_t arg3); 160static int aac_rx_get_mailboxstatus(struct aac_softc *sc); 161static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 162 163struct aac_interface aac_rx_interface = { 164 aac_rx_get_fwstatus, 165 aac_rx_qnotify, 166 aac_rx_get_istatus, 167 aac_rx_clear_istatus, 168 aac_rx_set_mailbox, 169 aac_rx_get_mailboxstatus, 170 aac_rx_set_interrupts 171}; 172 173/* Debugging and Diagnostics */ 174static void aac_describe_controller(struct aac_softc *sc); 175static char *aac_describe_code(struct aac_code_lookup *table, 176 u_int32_t code); 177 178/* Management Interface */ 179static d_open_t aac_open; 180static d_close_t aac_close; 181static d_ioctl_t aac_ioctl; 182static d_poll_t aac_poll; 183static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 184static void aac_handle_aif(struct aac_softc *sc, 185 struct aac_fib *fib); 186static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 187static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 188static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 189static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 190 191#define AAC_CDEV_MAJOR 150 192 193static struct cdevsw aac_cdevsw = { 194 aac_open, /* open */ 195 aac_close, /* close */ 196 noread, /* read */ 197 nowrite, /* write */ 198 aac_ioctl, /* ioctl */ 199 aac_poll, /* poll */ 200 nommap, /* mmap */ 201 nostrategy, /* strategy */ 202 "aac", /* name */ 203 AAC_CDEV_MAJOR, /* major */ 204 nodump, /* dump */ 205 nopsize, /* psize */ 206 0, /* flags */ 207#if __FreeBSD_version < 500005 208 -1, /* bmaj */ 209#endif 210}; 211 212MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 213 214/* sysctl node */ 215SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 216 217/* 218 * Device Interface 219 */ 220 221/* 222 * Initialise the controller and softc 223 */ 224int 225aac_attach(struct aac_softc *sc) 226{ 227 int error, unit; 228 229 debug_called(1); 230 231 /* 232 * Initialise per-controller queues. 233 */ 234 aac_initq_free(sc); 235 aac_initq_ready(sc); 236 aac_initq_busy(sc); 237 aac_initq_bio(sc); 238 239#if __FreeBSD_version >= 500005 240 /* 241 * Initialise command-completion task. 242 */ 243 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 244#endif 245 246 /* disable interrupts before we enable anything */ 247 AAC_MASK_INTERRUPTS(sc); 248 249 /* mark controller as suspended until we get ourselves organised */ 250 sc->aac_state |= AAC_STATE_SUSPEND; 251 252 /* 253 * Check that the firmware on the card is supported. 254 */ 255 if ((error = aac_check_firmware(sc)) != 0) 256 return(error); 257 258 /* Init the sync fib lock */ 259 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 260 261 /* 262 * Initialise the adapter. 263 */ 264 if ((error = aac_init(sc)) != 0) 265 return(error); 266 267 /* 268 * Print a little information about the controller. 269 */ 270 aac_describe_controller(sc); 271 272 /* 273 * Register to probe our containers later. 274 */ 275 TAILQ_INIT(&sc->aac_container_tqh); 276 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 277 278 /* 279 * Lock for the AIF queue 280 */ 281 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 282 283 sc->aac_ich.ich_func = aac_startup; 284 sc->aac_ich.ich_arg = sc; 285 if (config_intrhook_establish(&sc->aac_ich) != 0) { 286 device_printf(sc->aac_dev, 287 "can't establish configuration hook\n"); 288 return(ENXIO); 289 } 290 291 /* 292 * Make the control device. 293 */ 294 unit = device_get_unit(sc->aac_dev); 295 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 296 0640, "aac%d", unit); 297#if __FreeBSD_version > 500005 298 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 299 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 300#endif 301 sc->aac_dev_t->si_drv1 = sc; 302 303 /* Create the AIF thread */ 304#if __FreeBSD_version > 500005 305 if (kthread_create((void(*)(void *))aac_command_thread, sc, 306 &sc->aifthread, 0, 0, "aac%daif", unit)) 307#else 308 if (kthread_create((void(*)(void *))aac_command_thread, sc, 309 &sc->aifthread, "aac%daif", unit)) 310#endif 311 panic("Could not create AIF thread\n"); 312 313 /* Register the shutdown method to only be called post-dump */ 314 if ((sc->eh = EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, 315 sc->aac_dev, SHUTDOWN_PRI_DEFAULT)) == NULL) 316 device_printf(sc->aac_dev, 317 "shutdown event registration failed\n"); 318 319 /* Register with CAM for the non-DASD devices */ 320 if (!(sc->quirks & AAC_QUIRK_NOCAM)) { 321 TAILQ_INIT(&sc->aac_sim_tqh); 322 aac_get_bus_info(sc); 323 } 324 325 return(0); 326} 327 328/* 329 * Probe for containers, create disks. 330 */ 331static void 332aac_startup(void *arg) 333{ 334 struct aac_softc *sc; 335 struct aac_fib *fib; 336 struct aac_mntinfo *mi; 337 struct aac_mntinforesp *mir = NULL; 338 int i = 0; 339 340 debug_called(1); 341 342 sc = (struct aac_softc *)arg; 343 344 /* disconnect ourselves from the intrhook chain */ 345 config_intrhook_disestablish(&sc->aac_ich); 346 347 aac_alloc_sync_fib(sc, &fib, 0); 348 mi = (struct aac_mntinfo *)&fib->data[0]; 349 350 /* loop over possible containers */ 351 do { 352 /* request information on this container */ 353 bzero(mi, sizeof(struct aac_mntinfo)); 354 mi->Command = VM_NameServe; 355 mi->MntType = FT_FILESYS; 356 mi->MntCount = i; 357 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 358 sizeof(struct aac_mntinfo))) { 359 debug(2, "error probing container %d", i); 360 continue; 361 } 362 363 mir = (struct aac_mntinforesp *)&fib->data[0]; 364 aac_add_container(sc, mir, 0); 365 i++; 366 } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS)); 367 368 aac_release_sync_fib(sc); 369 370 /* poke the bus to actually attach the child devices */ 371 if (bus_generic_attach(sc->aac_dev)) 372 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 373 374 /* mark the controller up */ 375 sc->aac_state &= ~AAC_STATE_SUSPEND; 376 377 /* enable interrupts now */ 378 AAC_UNMASK_INTERRUPTS(sc); 379} 380 381/* 382 * Create a device to respresent a new container 383 */ 384static void 385aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 386{ 387 struct aac_container *co; 388 device_t child; 389 390 /* 391 * Check container volume type for validity. Note that many of 392 * the possible types may never show up. 393 */ 394 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 395 co = (struct aac_container *)malloc(sizeof *co, M_AACBUF, 396 M_NOWAIT | M_ZERO); 397 if (co == NULL) 398 panic("Out of memory?!\n"); 399 debug(1, "id %x name '%.16s' size %u type %d", 400 mir->MntTable[0].ObjectId, 401 mir->MntTable[0].FileSystemName, 402 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 403 404 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 405 device_printf(sc->aac_dev, "device_add_child failed\n"); 406 else 407 device_set_ivars(child, co); 408 device_set_desc(child, aac_describe_code(aac_container_types, 409 mir->MntTable[0].VolType)); 410 co->co_disk = child; 411 co->co_found = f; 412 bcopy(&mir->MntTable[0], &co->co_mntobj, 413 sizeof(struct aac_mntobj)); 414 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 415 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 416 AAC_LOCK_RELEASE(&sc->aac_container_lock); 417 } 418} 419 420/* 421 * Free all of the resources associated with (sc) 422 * 423 * Should not be called if the controller is active. 424 */ 425void 426aac_free(struct aac_softc *sc) 427{ 428 429 debug_called(1); 430 431 /* remove the control device */ 432 if (sc->aac_dev_t != NULL) 433 destroy_dev(sc->aac_dev_t); 434 435 /* throw away any FIB buffers, discard the FIB DMA tag */ 436 aac_free_commands(sc); 437 if (sc->aac_fib_dmat) 438 bus_dma_tag_destroy(sc->aac_fib_dmat); 439 440 free(sc->aac_commands, M_AACBUF); 441 442 /* destroy the common area */ 443 if (sc->aac_common) { 444 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 445 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 446 sc->aac_common_dmamap); 447 } 448 if (sc->aac_common_dmat) 449 bus_dma_tag_destroy(sc->aac_common_dmat); 450 451 /* disconnect the interrupt handler */ 452 if (sc->aac_intr) 453 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 454 if (sc->aac_irq != NULL) 455 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 456 sc->aac_irq); 457 458 /* destroy data-transfer DMA tag */ 459 if (sc->aac_buffer_dmat) 460 bus_dma_tag_destroy(sc->aac_buffer_dmat); 461 462 /* destroy the parent DMA tag */ 463 if (sc->aac_parent_dmat) 464 bus_dma_tag_destroy(sc->aac_parent_dmat); 465 466 /* release the register window mapping */ 467 if (sc->aac_regs_resource != NULL) 468 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 469 sc->aac_regs_rid, sc->aac_regs_resource); 470} 471 472/* 473 * Disconnect from the controller completely, in preparation for unload. 474 */ 475int 476aac_detach(device_t dev) 477{ 478 struct aac_softc *sc; 479 struct aac_container *co; 480 struct aac_sim *sim; 481 int error; 482 483 debug_called(1); 484 485 sc = device_get_softc(dev); 486 487 if (sc->aac_state & AAC_STATE_OPEN) 488 return(EBUSY); 489 490 /* Remove the child containers */ 491 while ((co = TAILQ_FIRST(&sc->aac_container_tqh)) != NULL) { 492 error = device_delete_child(dev, co->co_disk); 493 if (error) 494 return (error); 495 TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link); 496 free(co, M_AACBUF); 497 } 498 499 /* Remove the CAM SIMs */ 500 while ((sim = TAILQ_FIRST(&sc->aac_sim_tqh)) != NULL) { 501 TAILQ_REMOVE(&sc->aac_sim_tqh, sim, sim_link); 502 error = device_delete_child(dev, sim->sim_dev); 503 if (error) 504 return (error); 505 free(sim, M_AACBUF); 506 } 507 508 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 509 sc->aifflags |= AAC_AIFFLAGS_EXIT; 510 wakeup(sc->aifthread); 511 tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 512 } 513 514 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 515 panic("Cannot shutdown AIF thread\n"); 516 517 if ((error = aac_shutdown(dev))) 518 return(error); 519 520 EVENTHANDLER_DEREGISTER(shutdown_final, sc->eh); 521 522 aac_free(sc); 523 524 return(0); 525} 526 527/* 528 * Bring the controller down to a dormant state and detach all child devices. 529 * 530 * This function is called before detach or system shutdown. 531 * 532 * Note that we can assume that the bioq on the controller is empty, as we won't 533 * allow shutdown if any device is open. 534 */ 535int 536aac_shutdown(device_t dev) 537{ 538 struct aac_softc *sc; 539 struct aac_fib *fib; 540 struct aac_close_command *cc; 541 int s; 542 543 debug_called(1); 544 545 sc = device_get_softc(dev); 546 547 s = splbio(); 548 549 sc->aac_state |= AAC_STATE_SUSPEND; 550 551 /* 552 * Send a Container shutdown followed by a HostShutdown FIB to the 553 * controller to convince it that we don't want to talk to it anymore. 554 * We've been closed and all I/O completed already 555 */ 556 device_printf(sc->aac_dev, "shutting down controller..."); 557 558 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 559 cc = (struct aac_close_command *)&fib->data[0]; 560 561 bzero(cc, sizeof(struct aac_close_command)); 562 cc->Command = VM_CloseAll; 563 cc->ContainerId = 0xffffffff; 564 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 565 sizeof(struct aac_close_command))) 566 printf("FAILED.\n"); 567 else 568 printf("done\n"); 569#if 0 570 else { 571 fib->data[0] = 0; 572 /* 573 * XXX Issuing this command to the controller makes it shut down 574 * but also keeps it from coming back up without a reset of the 575 * PCI bus. This is not desirable if you are just unloading the 576 * driver module with the intent to reload it later. 577 */ 578 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 579 fib, 1)) { 580 printf("FAILED.\n"); 581 } else { 582 printf("done.\n"); 583 } 584 } 585#endif 586 587 AAC_MASK_INTERRUPTS(sc); 588 589 splx(s); 590 return(0); 591} 592 593/* 594 * Bring the controller to a quiescent state, ready for system suspend. 595 */ 596int 597aac_suspend(device_t dev) 598{ 599 struct aac_softc *sc; 600 int s; 601 602 debug_called(1); 603 604 sc = device_get_softc(dev); 605 606 s = splbio(); 607 608 sc->aac_state |= AAC_STATE_SUSPEND; 609 610 AAC_MASK_INTERRUPTS(sc); 611 splx(s); 612 return(0); 613} 614 615/* 616 * Bring the controller back to a state ready for operation. 617 */ 618int 619aac_resume(device_t dev) 620{ 621 struct aac_softc *sc; 622 623 debug_called(1); 624 625 sc = device_get_softc(dev); 626 627 sc->aac_state &= ~AAC_STATE_SUSPEND; 628 AAC_UNMASK_INTERRUPTS(sc); 629 return(0); 630} 631 632/* 633 * Take an interrupt. 634 */ 635void 636aac_intr(void *arg) 637{ 638 struct aac_softc *sc; 639 u_int32_t *resp_queue; 640 u_int16_t reason; 641 642 debug_called(2); 643 644 sc = (struct aac_softc *)arg; 645 646 /* 647 * Optimize the common case of adapter response interrupts. 648 * We must read from the card prior to processing the responses 649 * to ensure the clear is flushed prior to accessing the queues. 650 * Reading the queues from local memory might save us a PCI read. 651 */ 652 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 653 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 654 reason = AAC_DB_RESPONSE_READY; 655 else 656 reason = AAC_GET_ISTATUS(sc); 657 AAC_CLEAR_ISTATUS(sc, reason); 658 (void)AAC_GET_ISTATUS(sc); 659 660 /* It's not ok to return here because of races with the previous step */ 661 if (reason & AAC_DB_RESPONSE_READY) 662 /* handle completion processing */ 663 taskqueue_enqueue(taskqueue_swi_giant, &sc->aac_task_complete); 664 665 /* controller wants to talk to the log */ 666 if (reason & AAC_DB_PRINTF) { 667 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 668 sc->aifflags |= AAC_AIFFLAGS_PRINTF; 669 } else 670 aac_print_printf(sc); 671 } 672 673 /* controller has a message for us? */ 674 if (reason & AAC_DB_COMMAND_READY) { 675 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 676 sc->aifflags |= AAC_AIFFLAGS_AIF; 677 } else { 678 /* 679 * XXX If the kthread is dead and we're at this point, 680 * there are bigger problems than just figuring out 681 * what to do with an AIF. 682 */ 683 } 684 685 } 686 687 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) != 0) 688 /* XXX Should this be done with cv_signal? */ 689 wakeup(sc->aifthread); 690} 691 692/* 693 * Command Processing 694 */ 695 696/* 697 * Start as much queued I/O as possible on the controller 698 */ 699void 700aac_startio(struct aac_softc *sc) 701{ 702 struct aac_command *cm; 703 704 debug_called(2); 705 706 for (;;) { 707 /* 708 * Try to get a command that's been put off for lack of 709 * resources 710 */ 711 cm = aac_dequeue_ready(sc); 712 713 /* 714 * Try to build a command off the bio queue (ignore error 715 * return) 716 */ 717 if (cm == NULL) 718 aac_bio_command(sc, &cm); 719 720 /* nothing to do? */ 721 if (cm == NULL) 722 break; 723 724 /* try to give the command to the controller */ 725 if (aac_start(cm) == EBUSY) { 726 /* put it on the ready queue for later */ 727 aac_requeue_ready(cm); 728 break; 729 } 730 } 731} 732 733/* 734 * Deliver a command to the controller; allocate controller resources at the 735 * last moment when possible. 736 */ 737static int 738aac_start(struct aac_command *cm) 739{ 740 struct aac_softc *sc; 741 int error; 742 743 debug_called(2); 744 745 sc = cm->cm_sc; 746 747 /* get the command mapped */ 748 aac_map_command(cm); 749 750 /* fix up the address values in the FIB */ 751 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 752 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 753 754 /* save a pointer to the command for speedy reverse-lookup */ 755 cm->cm_fib->Header.SenderData = cm->cm_index; 756 /* put the FIB on the outbound queue */ 757 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 758 return(error); 759} 760 761/* 762 * Handle notification of one or more FIBs coming from the controller. 763 */ 764static void 765aac_command_thread(struct aac_softc *sc) 766{ 767 struct aac_fib *fib; 768 u_int32_t fib_size; 769 int size; 770 771 debug_called(2); 772 773 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 774 775 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 776 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 777 tsleep(sc->aifthread, PRIBIO, "aifthd", 778 AAC_PERIODIC_INTERVAL * hz); 779 780 /* While we're here, check to see if any commands are stuck */ 781 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 782 aac_timeout(sc); 783 784 /* Check the hardware printf message buffer */ 785 if ((sc->aifflags & AAC_AIFFLAGS_PRINTF) != 0) { 786 sc->aifflags &= ~AAC_AIFFLAGS_PRINTF; 787 aac_print_printf(sc); 788 } 789 790 while (sc->aifflags & AAC_AIFFLAGS_AIF) { 791 792 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 793 &fib_size, &fib)) { 794 sc->aifflags &= ~AAC_AIFFLAGS_AIF; 795 break; /* nothing to do */ 796 } 797 798 AAC_PRINT_FIB(sc, fib); 799 800 switch (fib->Header.Command) { 801 case AifRequest: 802 aac_handle_aif(sc, fib); 803 break; 804 default: 805 device_printf(sc->aac_dev, "unknown command " 806 "from controller\n"); 807 break; 808 } 809 810 if ((fib->Header.XferState == 0) || 811 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 812 break; 813 814 /* Return the AIF to the controller. */ 815 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 816 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 817 *(AAC_FSAStatus*)fib->data = ST_OK; 818 819 /* XXX Compute the Size field? */ 820 size = fib->Header.Size; 821 if (size > sizeof(struct aac_fib)) { 822 size = sizeof(struct aac_fib); 823 fib->Header.Size = size; 824 } 825 /* 826 * Since we did not generate this command, it 827 * cannot go through the normal 828 * enqueue->startio chain. 829 */ 830 aac_enqueue_response(sc, 831 AAC_ADAP_NORM_RESP_QUEUE, 832 fib); 833 } 834 } 835 } 836 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 837 wakeup(sc->aac_dev); 838 839#if __FreeBSD_version > 500005 840 mtx_lock(&Giant); 841#endif 842 kthread_exit(0); 843} 844 845/* 846 * Process completed commands. 847 */ 848static void 849aac_complete(void *context, int pending) 850{ 851 struct aac_softc *sc; 852 struct aac_command *cm; 853 struct aac_fib *fib; 854 u_int32_t fib_size; 855 856 debug_called(2); 857 858 sc = (struct aac_softc *)context; 859 860 /* pull completed commands off the queue */ 861 for (;;) { 862 /* look for completed FIBs on our queue */ 863 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 864 &fib)) 865 break; /* nothing to do */ 866 867 /* get the command, unmap and queue for later processing */ 868 cm = sc->aac_commands + fib->Header.SenderData; 869 if (cm == NULL) { 870 AAC_PRINT_FIB(sc, fib); 871 break; 872 } 873 874 aac_remove_busy(cm); 875 aac_unmap_command(cm); /* XXX defer? */ 876 cm->cm_flags |= AAC_CMD_COMPLETED; 877 878 /* is there a completion handler? */ 879 if (cm->cm_complete != NULL) { 880 cm->cm_complete(cm); 881 } else { 882 /* assume that someone is sleeping on this command */ 883 wakeup(cm); 884 } 885 } 886 887 /* see if we can start some more I/O */ 888 aac_startio(sc); 889} 890 891/* 892 * Handle a bio submitted from a disk device. 893 */ 894void 895aac_submit_bio(struct bio *bp) 896{ 897 struct aac_disk *ad; 898 struct aac_softc *sc; 899 900 debug_called(2); 901 902 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 903 sc = ad->ad_controller; 904 905 /* queue the BIO and try to get some work done */ 906 aac_enqueue_bio(sc, bp); 907 aac_startio(sc); 908} 909 910/* 911 * Get a bio and build a command to go with it. 912 */ 913static int 914aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 915{ 916 struct aac_command *cm; 917 struct aac_fib *fib; 918 struct aac_blockread *br; 919 struct aac_blockwrite *bw; 920 struct aac_disk *ad; 921 struct bio *bp; 922 923 debug_called(2); 924 925 /* get the resources we will need */ 926 cm = NULL; 927 if ((bp = aac_dequeue_bio(sc)) == NULL) 928 goto fail; 929 if (aac_alloc_command(sc, &cm)) /* get a command */ 930 goto fail; 931 932 /* fill out the command */ 933 cm->cm_data = (void *)bp->bio_data; 934 cm->cm_datalen = bp->bio_bcount; 935 cm->cm_complete = aac_bio_complete; 936 cm->cm_private = bp; 937 cm->cm_timestamp = time_second; 938 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 939 940 /* build the FIB */ 941 fib = cm->cm_fib; 942 fib->Header.XferState = 943 AAC_FIBSTATE_HOSTOWNED | 944 AAC_FIBSTATE_INITIALISED | 945 AAC_FIBSTATE_EMPTY | 946 AAC_FIBSTATE_FROMHOST | 947 AAC_FIBSTATE_REXPECTED | 948 AAC_FIBSTATE_NORM | 949 AAC_FIBSTATE_ASYNC | 950 AAC_FIBSTATE_FAST_RESPONSE; 951 fib->Header.Command = ContainerCommand; 952 fib->Header.Size = sizeof(struct aac_fib_header); 953 954 /* build the read/write request */ 955 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 956 if (BIO_IS_READ(bp)) { 957 br = (struct aac_blockread *)&fib->data[0]; 958 br->Command = VM_CtBlockRead; 959 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 960 br->BlockNumber = bp->bio_pblkno; 961 br->ByteCount = bp->bio_bcount; 962 fib->Header.Size += sizeof(struct aac_blockread); 963 cm->cm_sgtable = &br->SgMap; 964 cm->cm_flags |= AAC_CMD_DATAIN; 965 } else { 966 bw = (struct aac_blockwrite *)&fib->data[0]; 967 bw->Command = VM_CtBlockWrite; 968 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 969 bw->BlockNumber = bp->bio_pblkno; 970 bw->ByteCount = bp->bio_bcount; 971 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 972 fib->Header.Size += sizeof(struct aac_blockwrite); 973 cm->cm_flags |= AAC_CMD_DATAOUT; 974 cm->cm_sgtable = &bw->SgMap; 975 } 976 977 *cmp = cm; 978 return(0); 979 980fail: 981 if (bp != NULL) 982 aac_enqueue_bio(sc, bp); 983 if (cm != NULL) 984 aac_release_command(cm); 985 return(ENOMEM); 986} 987 988/* 989 * Handle a bio-instigated command that has been completed. 990 */ 991static void 992aac_bio_complete(struct aac_command *cm) 993{ 994 struct aac_blockread_response *brr; 995 struct aac_blockwrite_response *bwr; 996 struct bio *bp; 997 AAC_FSAStatus status; 998 999 /* fetch relevant status and then release the command */ 1000 bp = (struct bio *)cm->cm_private; 1001 if (BIO_IS_READ(bp)) { 1002 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 1003 status = brr->Status; 1004 } else { 1005 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 1006 status = bwr->Status; 1007 } 1008 aac_release_command(cm); 1009 1010 /* fix up the bio based on status */ 1011 if (status == ST_OK) { 1012 bp->bio_resid = 0; 1013 } else { 1014 bp->bio_error = EIO; 1015 bp->bio_flags |= BIO_ERROR; 1016 /* pass an error string out to the disk layer */ 1017 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1018 status); 1019 } 1020 aac_biodone(bp); 1021} 1022 1023/* 1024 * Submit a command to the controller, return when it completes. 1025 * XXX This is very dangerous! If the card has gone out to lunch, we could 1026 * be stuck here forever. At the same time, signals are not caught 1027 * because there is a risk that a signal could wakeup the tsleep before 1028 * the card has a chance to complete the command. The passed in timeout 1029 * is ignored for the same reason. Since there is no way to cancel a 1030 * command in progress, we should probably create a 'dead' queue where 1031 * commands go that have been interrupted/timed-out/etc, that keeps them 1032 * out of the free pool. That way, if the card is just slow, it won't 1033 * spam the memory of a command that has been recycled. 1034 */ 1035static int 1036aac_wait_command(struct aac_command *cm, int timeout) 1037{ 1038 int s, error = 0; 1039 1040 debug_called(2); 1041 1042 /* Put the command on the ready queue and get things going */ 1043 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1044 aac_enqueue_ready(cm); 1045 aac_startio(cm->cm_sc); 1046 s = splbio(); 1047 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1048 error = tsleep(cm, PRIBIO, "aacwait", 0); 1049 } 1050 splx(s); 1051 return(error); 1052} 1053 1054/* 1055 *Command Buffer Management 1056 */ 1057 1058/* 1059 * Allocate a command. 1060 */ 1061int 1062aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1063{ 1064 struct aac_command *cm; 1065 1066 debug_called(3); 1067 1068 if ((cm = aac_dequeue_free(sc)) == NULL) { 1069 if ((aac_alloc_commands(sc) != 0) || 1070 (cm = aac_dequeue_free(sc)) == NULL) 1071 return (ENOMEM); 1072 } 1073 1074 *cmp = cm; 1075 return(0); 1076} 1077 1078/* 1079 * Release a command back to the freelist. 1080 */ 1081void 1082aac_release_command(struct aac_command *cm) 1083{ 1084 debug_called(3); 1085 1086 /* (re)initialise the command/FIB */ 1087 cm->cm_sgtable = NULL; 1088 cm->cm_flags = 0; 1089 cm->cm_complete = NULL; 1090 cm->cm_private = NULL; 1091 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1092 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1093 cm->cm_fib->Header.Flags = 0; 1094 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1095 1096 /* 1097 * These are duplicated in aac_start to cover the case where an 1098 * intermediate stage may have destroyed them. They're left 1099 * initialised here for debugging purposes only. 1100 */ 1101 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 1102 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1103 cm->cm_fib->Header.SenderData = 0; 1104 1105 aac_enqueue_free(cm); 1106} 1107 1108/* 1109 * Map helper for command/FIB allocation. 1110 */ 1111static void 1112aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1113{ 1114 uint32_t *fibphys; 1115 1116 fibphys = (uint32_t *)arg; 1117 1118 debug_called(3); 1119 1120 *fibphys = segs[0].ds_addr; 1121} 1122 1123/* 1124 * Allocate and initialise commands/FIBs for this adapter. 1125 */ 1126static int 1127aac_alloc_commands(struct aac_softc *sc) 1128{ 1129 struct aac_command *cm; 1130 struct aac_fibmap *fm; 1131 uint32_t fibphys; 1132 int i, error; 1133 1134 debug_called(1); 1135 1136 if (sc->total_fibs + AAC_FIB_COUNT > AAC_MAX_FIBS) 1137 return (ENOMEM); 1138 1139 fm = malloc(sizeof(struct aac_fibmap), M_AACBUF, M_NOWAIT|M_ZERO); 1140 1141 /* allocate the FIBs in DMAable memory and load them */ 1142 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs, 1143 BUS_DMA_NOWAIT, &fm->aac_fibmap)) { 1144 device_printf(sc->aac_dev, 1145 "Not enough contiguous memory available.\n"); 1146 free(fm, M_AACBUF); 1147 return (ENOMEM); 1148 } 1149 1150 bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs, 1151 AAC_FIB_COUNT * sizeof(struct aac_fib), 1152 aac_map_command_helper, &fibphys, 0); 1153 1154 /* initialise constant fields in the command structure */ 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 return (0); 1175 } 1176 1177 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1178 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1179 free(fm, M_AACBUF); 1180 return (ENOMEM); 1181} 1182 1183/* 1184 * Free FIBs owned by this adapter. 1185 */ 1186static void 1187aac_free_commands(struct aac_softc *sc) 1188{ 1189 struct aac_fibmap *fm; 1190 struct aac_command *cm; 1191 int i; 1192 1193 debug_called(1); 1194 1195 while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) { 1196 1197 TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link); 1198 /* 1199 * We check against total_fibs to handle partially 1200 * allocated blocks. 1201 */ 1202 for (i = 0; i < AAC_FIB_COUNT && sc->total_fibs--; i++) { 1203 cm = fm->aac_commands + i; 1204 bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap); 1205 } 1206 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1207 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1208 free(fm, M_AACBUF); 1209 } 1210} 1211 1212/* 1213 * Command-mapping helper function - populate this command's s/g table. 1214 */ 1215static void 1216aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1217{ 1218 struct aac_command *cm; 1219 struct aac_fib *fib; 1220 struct aac_sg_table *sg; 1221 int i; 1222 1223 debug_called(3); 1224 1225 cm = (struct aac_command *)arg; 1226 fib = cm->cm_fib; 1227 1228 /* find the s/g table */ 1229 sg = cm->cm_sgtable; 1230 1231 /* copy into the FIB */ 1232 if (sg != NULL) { 1233 sg->SgCount = nseg; 1234 for (i = 0; i < nseg; i++) { 1235 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1236 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1237 } 1238 /* update the FIB size for the s/g count */ 1239 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1240 } 1241 1242} 1243 1244/* 1245 * Map a command into controller-visible space. 1246 */ 1247static void 1248aac_map_command(struct aac_command *cm) 1249{ 1250 struct aac_softc *sc; 1251 1252 debug_called(2); 1253 1254 sc = cm->cm_sc; 1255 1256 /* don't map more than once */ 1257 if (cm->cm_flags & AAC_CMD_MAPPED) 1258 return; 1259 1260 if (cm->cm_datalen != 0) { 1261 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 1262 cm->cm_data, cm->cm_datalen, 1263 aac_map_command_sg, cm, 0); 1264 1265 if (cm->cm_flags & AAC_CMD_DATAIN) 1266 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1267 BUS_DMASYNC_PREREAD); 1268 if (cm->cm_flags & AAC_CMD_DATAOUT) 1269 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1270 BUS_DMASYNC_PREWRITE); 1271 } 1272 cm->cm_flags |= AAC_CMD_MAPPED; 1273} 1274 1275/* 1276 * Unmap a command from controller-visible space. 1277 */ 1278static void 1279aac_unmap_command(struct aac_command *cm) 1280{ 1281 struct aac_softc *sc; 1282 1283 debug_called(2); 1284 1285 sc = cm->cm_sc; 1286 1287 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1288 return; 1289 1290 if (cm->cm_datalen != 0) { 1291 if (cm->cm_flags & AAC_CMD_DATAIN) 1292 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1293 BUS_DMASYNC_POSTREAD); 1294 if (cm->cm_flags & AAC_CMD_DATAOUT) 1295 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1296 BUS_DMASYNC_POSTWRITE); 1297 1298 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1299 } 1300 cm->cm_flags &= ~AAC_CMD_MAPPED; 1301} 1302 1303/* 1304 * Hardware Interface 1305 */ 1306 1307/* 1308 * Initialise the adapter. 1309 */ 1310static void 1311aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1312{ 1313 struct aac_softc *sc; 1314 1315 debug_called(1); 1316 1317 sc = (struct aac_softc *)arg; 1318 1319 sc->aac_common_busaddr = segs[0].ds_addr; 1320} 1321 1322/* 1323 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1324 * firmware version 1.x are not compatible with this driver. 1325 */ 1326static int 1327aac_check_firmware(struct aac_softc *sc) 1328{ 1329 u_int32_t major, minor; 1330 1331 debug_called(1); 1332 1333 if (sc->quirks & AAC_QUIRK_PERC2QC) { 1334 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1335 NULL)) { 1336 device_printf(sc->aac_dev, 1337 "Error reading firmware version\n"); 1338 return (EIO); 1339 } 1340 1341 /* These numbers are stored as ASCII! */ 1342 major = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 4) & 0xff) - 0x30; 1343 minor = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 8) & 0xff) - 0x30; 1344 if (major == 1) { 1345 device_printf(sc->aac_dev, 1346 "Firmware version %d.%d is not supported.\n", 1347 major, minor); 1348 return (EINVAL); 1349 } 1350 } 1351 1352 return (0); 1353} 1354 1355static int 1356aac_init(struct aac_softc *sc) 1357{ 1358 struct aac_adapter_init *ip; 1359 time_t then; 1360 u_int32_t code; 1361 u_int8_t *qaddr; 1362 1363 debug_called(1); 1364 1365 /* 1366 * First wait for the adapter to come ready. 1367 */ 1368 then = time_second; 1369 do { 1370 code = AAC_GET_FWSTATUS(sc); 1371 if (code & AAC_SELF_TEST_FAILED) { 1372 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1373 return(ENXIO); 1374 } 1375 if (code & AAC_KERNEL_PANIC) { 1376 device_printf(sc->aac_dev, 1377 "FATAL: controller kernel panic\n"); 1378 return(ENXIO); 1379 } 1380 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1381 device_printf(sc->aac_dev, 1382 "FATAL: controller not coming ready, " 1383 "status %x\n", code); 1384 return(ENXIO); 1385 } 1386 } while (!(code & AAC_UP_AND_RUNNING)); 1387 1388 /* 1389 * Create DMA tag for the common structure and allocate it. 1390 */ 1391 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1392 1, 0, /* algnmnt, boundary */ 1393 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1394 BUS_SPACE_MAXADDR, /* highaddr */ 1395 NULL, NULL, /* filter, filterarg */ 1396 8192 + sizeof(struct aac_common), /* maxsize */ 1397 1, /* nsegments */ 1398 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1399 0, /* flags */ 1400 &sc->aac_common_dmat)) { 1401 device_printf(sc->aac_dev, 1402 "can't allocate common structure DMA tag\n"); 1403 return(ENOMEM); 1404 } 1405 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1406 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1407 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1408 return(ENOMEM); 1409 } 1410 1411 /* 1412 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1413 * below address 8192 in physical memory. 1414 * XXX If the padding is not needed, can it be put to use instead 1415 * of ignored? 1416 */ 1417 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1418 sc->aac_common, 8192 + sizeof(*sc->aac_common), 1419 aac_common_map, sc, 0); 1420 1421 if (sc->aac_common_busaddr < 8192) { 1422 (uint8_t *)sc->aac_common += 8192; 1423 sc->aac_common_busaddr += 8192; 1424 } 1425 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1426 1427 /* Allocate some FIBs and associated command structs */ 1428 TAILQ_INIT(&sc->aac_fibmap_tqh); 1429 sc->aac_commands = malloc(AAC_MAX_FIBS * sizeof(struct aac_command), 1430 M_AACBUF, M_WAITOK|M_ZERO); 1431 while (sc->total_fibs < AAC_PREALLOCATE_FIBS) { 1432 if (aac_alloc_commands(sc) != 0) 1433 break; 1434 } 1435 if (sc->total_fibs == 0) 1436 return (ENOMEM); 1437 1438 /* 1439 * Fill in the init structure. This tells the adapter about the 1440 * physical location of various important shared data structures. 1441 */ 1442 ip = &sc->aac_common->ac_init; 1443 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1444 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1445 1446 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1447 offsetof(struct aac_common, ac_fibs); 1448 ip->AdapterFibsVirtualAddress = (u_int32_t)&sc->aac_common->ac_fibs[0]; 1449 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1450 ip->AdapterFibAlign = sizeof(struct aac_fib); 1451 1452 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1453 offsetof(struct aac_common, ac_printf); 1454 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1455 1456 /* The adapter assumes that pages are 4K in size */ 1457 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1458 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1459 1460 /* 1461 * Initialise FIB queues. Note that it appears that the layout of the 1462 * indexes and the segmentation of the entries may be mandated by the 1463 * adapter, which is only told about the base of the queue index fields. 1464 * 1465 * The initial values of the indices are assumed to inform the adapter 1466 * of the sizes of the respective queues, and theoretically it could 1467 * work out the entire layout of the queue structures from this. We 1468 * take the easy route and just lay this area out like everyone else 1469 * does. 1470 * 1471 * The Linux driver uses a much more complex scheme whereby several 1472 * header records are kept for each queue. We use a couple of generic 1473 * list manipulation functions which 'know' the size of each list by 1474 * virtue of a table. 1475 */ 1476 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1477 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1478 sc->aac_queues = (struct aac_queue_table *)qaddr; 1479 ip->CommHeaderAddress = sc->aac_common_busaddr + 1480 ((u_int32_t)sc->aac_queues - 1481 (u_int32_t)sc->aac_common); 1482 1483 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1484 AAC_HOST_NORM_CMD_ENTRIES; 1485 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1486 AAC_HOST_NORM_CMD_ENTRIES; 1487 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1488 AAC_HOST_HIGH_CMD_ENTRIES; 1489 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1490 AAC_HOST_HIGH_CMD_ENTRIES; 1491 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1492 AAC_ADAP_NORM_CMD_ENTRIES; 1493 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1494 AAC_ADAP_NORM_CMD_ENTRIES; 1495 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1496 AAC_ADAP_HIGH_CMD_ENTRIES; 1497 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1498 AAC_ADAP_HIGH_CMD_ENTRIES; 1499 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1500 AAC_HOST_NORM_RESP_ENTRIES; 1501 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1502 AAC_HOST_NORM_RESP_ENTRIES; 1503 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1504 AAC_HOST_HIGH_RESP_ENTRIES; 1505 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1506 AAC_HOST_HIGH_RESP_ENTRIES; 1507 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1508 AAC_ADAP_NORM_RESP_ENTRIES; 1509 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1510 AAC_ADAP_NORM_RESP_ENTRIES; 1511 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1512 AAC_ADAP_HIGH_RESP_ENTRIES; 1513 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1514 AAC_ADAP_HIGH_RESP_ENTRIES; 1515 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1516 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1517 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1518 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1519 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1520 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1521 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1522 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1523 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1524 &sc->aac_queues->qt_HostNormRespQueue[0]; 1525 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1526 &sc->aac_queues->qt_HostHighRespQueue[0]; 1527 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1528 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1529 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1530 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1531 1532 /* 1533 * Do controller-type-specific initialisation 1534 */ 1535 switch (sc->aac_hwif) { 1536 case AAC_HWIF_I960RX: 1537 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1538 break; 1539 } 1540 1541 /* 1542 * Give the init structure to the controller. 1543 */ 1544 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1545 sc->aac_common_busaddr + 1546 offsetof(struct aac_common, ac_init), 0, 0, 0, 1547 NULL)) { 1548 device_printf(sc->aac_dev, 1549 "error establishing init structure\n"); 1550 return(EIO); 1551 } 1552 1553 return(0); 1554} 1555 1556/* 1557 * Send a synchronous command to the controller and wait for a result. 1558 */ 1559static int 1560aac_sync_command(struct aac_softc *sc, u_int32_t command, 1561 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1562 u_int32_t *sp) 1563{ 1564 time_t then; 1565 u_int32_t status; 1566 1567 debug_called(3); 1568 1569 /* populate the mailbox */ 1570 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1571 1572 /* ensure the sync command doorbell flag is cleared */ 1573 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1574 1575 /* then set it to signal the adapter */ 1576 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1577 1578 /* spin waiting for the command to complete */ 1579 then = time_second; 1580 do { 1581 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1582 debug(2, "timed out"); 1583 return(EIO); 1584 } 1585 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1586 1587 /* clear the completion flag */ 1588 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1589 1590 /* get the command status */ 1591 status = AAC_GET_MAILBOXSTATUS(sc); 1592 if (sp != NULL) 1593 *sp = status; 1594 return(0); 1595} 1596 1597/* 1598 * Grab the sync fib area. 1599 */ 1600int 1601aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1602{ 1603 1604 /* 1605 * If the force flag is set, the system is shutting down, or in 1606 * trouble. Ignore the mutex. 1607 */ 1608 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1609 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1610 1611 *fib = &sc->aac_common->ac_sync_fib; 1612 1613 return (1); 1614} 1615 1616/* 1617 * Release the sync fib area. 1618 */ 1619void 1620aac_release_sync_fib(struct aac_softc *sc) 1621{ 1622 1623 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1624} 1625 1626/* 1627 * Send a synchronous FIB to the controller and wait for a result. 1628 */ 1629int 1630aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1631 struct aac_fib *fib, u_int16_t datasize) 1632{ 1633 debug_called(3); 1634 1635 if (datasize > AAC_FIB_DATASIZE) 1636 return(EINVAL); 1637 1638 /* 1639 * Set up the sync FIB 1640 */ 1641 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1642 AAC_FIBSTATE_INITIALISED | 1643 AAC_FIBSTATE_EMPTY; 1644 fib->Header.XferState |= xferstate; 1645 fib->Header.Command = command; 1646 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1647 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1648 fib->Header.SenderSize = sizeof(struct aac_fib); 1649 fib->Header.SenderFibAddress = (u_int32_t)fib; 1650 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1651 offsetof(struct aac_common, 1652 ac_sync_fib); 1653 1654 /* 1655 * Give the FIB to the controller, wait for a response. 1656 */ 1657 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1658 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1659 debug(2, "IO error"); 1660 return(EIO); 1661 } 1662 1663 return (0); 1664} 1665 1666/* 1667 * Adapter-space FIB queue manipulation 1668 * 1669 * Note that the queue implementation here is a little funky; neither the PI or 1670 * CI will ever be zero. This behaviour is a controller feature. 1671 */ 1672static struct { 1673 int size; 1674 int notify; 1675} aac_qinfo[] = { 1676 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1677 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1678 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1679 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1680 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1681 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1682 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1683 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1684}; 1685 1686/* 1687 * Atomically insert an entry into the nominated queue, returns 0 on success or 1688 * EBUSY if the queue is full. 1689 * 1690 * Note: it would be more efficient to defer notifying the controller in 1691 * the case where we may be inserting several entries in rapid succession, 1692 * but implementing this usefully may be difficult (it would involve a 1693 * separate queue/notify interface). 1694 */ 1695static int 1696aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1697{ 1698 u_int32_t pi, ci; 1699 int s, error; 1700 u_int32_t fib_size; 1701 u_int32_t fib_addr; 1702 1703 debug_called(3); 1704 1705 fib_size = cm->cm_fib->Header.Size; 1706 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1707 1708 s = splbio(); 1709 1710 /* get the producer/consumer indices */ 1711 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1712 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1713 1714 /* wrap the queue? */ 1715 if (pi >= aac_qinfo[queue].size) 1716 pi = 0; 1717 1718 /* check for queue full */ 1719 if ((pi + 1) == ci) { 1720 error = EBUSY; 1721 goto out; 1722 } 1723 1724 /* populate queue entry */ 1725 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1726 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1727 1728 /* update producer index */ 1729 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1730 1731 /* 1732 * To avoid a race with its completion interrupt, place this command on 1733 * the busy queue prior to advertising it to the controller. 1734 */ 1735 aac_enqueue_busy(cm); 1736 1737 /* notify the adapter if we know how */ 1738 if (aac_qinfo[queue].notify != 0) 1739 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1740 1741 error = 0; 1742 1743out: 1744 splx(s); 1745 return(error); 1746} 1747 1748/* 1749 * Atomically remove one entry from the nominated queue, returns 0 on 1750 * success or ENOENT if the queue is empty. 1751 */ 1752static int 1753aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1754 struct aac_fib **fib_addr) 1755{ 1756 u_int32_t pi, ci; 1757 int s, error; 1758 int notify; 1759 1760 debug_called(3); 1761 1762 s = splbio(); 1763 1764 /* get the producer/consumer indices */ 1765 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1766 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1767 1768 /* check for queue empty */ 1769 if (ci == pi) { 1770 error = ENOENT; 1771 goto out; 1772 } 1773 1774 notify = 0; 1775 if (ci == pi + 1) 1776 notify++; 1777 1778 /* wrap the queue? */ 1779 if (ci >= aac_qinfo[queue].size) 1780 ci = 0; 1781 1782 /* fetch the entry */ 1783 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1784 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + 1785 ci)->aq_fib_addr; 1786 1787 /* 1788 * Is this a fast response? If it is, update the fib fields in 1789 * local memory so the whole fib doesn't have to be DMA'd back up. 1790 */ 1791 if (*(uintptr_t *)fib_addr & 0x01) { 1792 *(uintptr_t *)fib_addr &= ~0x01; 1793 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1794 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1795 } 1796 /* update consumer index */ 1797 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1798 1799 /* if we have made the queue un-full, notify the adapter */ 1800 if (notify && (aac_qinfo[queue].notify != 0)) 1801 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1802 error = 0; 1803 1804out: 1805 splx(s); 1806 return(error); 1807} 1808 1809/* 1810 * Put our response to an Adapter Initialed Fib on the response queue 1811 */ 1812static int 1813aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1814{ 1815 u_int32_t pi, ci; 1816 int s, error; 1817 u_int32_t fib_size; 1818 u_int32_t fib_addr; 1819 1820 debug_called(1); 1821 1822 /* Tell the adapter where the FIB is */ 1823 fib_size = fib->Header.Size; 1824 fib_addr = fib->Header.SenderFibAddress; 1825 fib->Header.ReceiverFibAddress = fib_addr; 1826 1827 s = splbio(); 1828 1829 /* get the producer/consumer indices */ 1830 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1831 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1832 1833 /* wrap the queue? */ 1834 if (pi >= aac_qinfo[queue].size) 1835 pi = 0; 1836 1837 /* check for queue full */ 1838 if ((pi + 1) == ci) { 1839 error = EBUSY; 1840 goto out; 1841 } 1842 1843 /* populate queue entry */ 1844 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1845 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1846 1847 /* update producer index */ 1848 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1849 1850 /* notify the adapter if we know how */ 1851 if (aac_qinfo[queue].notify != 0) 1852 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1853 1854 error = 0; 1855 1856out: 1857 splx(s); 1858 return(error); 1859} 1860 1861/* 1862 * Check for commands that have been outstanding for a suspiciously long time, 1863 * and complain about them. 1864 */ 1865static void 1866aac_timeout(struct aac_softc *sc) 1867{ 1868 int s; 1869 struct aac_command *cm; 1870 time_t deadline; 1871 1872 /* 1873 * Traverse the busy command list, bitch about late commands once 1874 * only. 1875 */ 1876 deadline = time_second - AAC_CMD_TIMEOUT; 1877 s = splbio(); 1878 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1879 if ((cm->cm_timestamp < deadline) 1880 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1881 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1882 device_printf(sc->aac_dev, 1883 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 1884 cm, (int)(time_second-cm->cm_timestamp)); 1885 AAC_PRINT_FIB(sc, cm->cm_fib); 1886 } 1887 } 1888 splx(s); 1889 1890 return; 1891} 1892 1893/* 1894 * Interface Function Vectors 1895 */ 1896 1897/* 1898 * Read the current firmware status word. 1899 */ 1900static int 1901aac_sa_get_fwstatus(struct aac_softc *sc) 1902{ 1903 debug_called(3); 1904 1905 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 1906} 1907 1908static int 1909aac_rx_get_fwstatus(struct aac_softc *sc) 1910{ 1911 debug_called(3); 1912 1913 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 1914} 1915 1916static int 1917aac_fa_get_fwstatus(struct aac_softc *sc) 1918{ 1919 int val; 1920 1921 debug_called(3); 1922 1923 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 1924 return (val); 1925} 1926 1927/* 1928 * Notify the controller of a change in a given queue 1929 */ 1930 1931static void 1932aac_sa_qnotify(struct aac_softc *sc, int qbit) 1933{ 1934 debug_called(3); 1935 1936 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 1937} 1938 1939static void 1940aac_rx_qnotify(struct aac_softc *sc, int qbit) 1941{ 1942 debug_called(3); 1943 1944 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 1945} 1946 1947static void 1948aac_fa_qnotify(struct aac_softc *sc, int qbit) 1949{ 1950 debug_called(3); 1951 1952 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 1953 AAC_FA_HACK(sc); 1954} 1955 1956/* 1957 * Get the interrupt reason bits 1958 */ 1959static int 1960aac_sa_get_istatus(struct aac_softc *sc) 1961{ 1962 debug_called(3); 1963 1964 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 1965} 1966 1967static int 1968aac_rx_get_istatus(struct aac_softc *sc) 1969{ 1970 debug_called(3); 1971 1972 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 1973} 1974 1975static int 1976aac_fa_get_istatus(struct aac_softc *sc) 1977{ 1978 int val; 1979 1980 debug_called(3); 1981 1982 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 1983 return (val); 1984} 1985 1986/* 1987 * Clear some interrupt reason bits 1988 */ 1989static void 1990aac_sa_clear_istatus(struct aac_softc *sc, int mask) 1991{ 1992 debug_called(3); 1993 1994 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 1995} 1996 1997static void 1998aac_rx_clear_istatus(struct aac_softc *sc, int mask) 1999{ 2000 debug_called(3); 2001 2002 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2003} 2004 2005static void 2006aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2007{ 2008 debug_called(3); 2009 2010 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2011 AAC_FA_HACK(sc); 2012} 2013 2014/* 2015 * Populate the mailbox and set the command word 2016 */ 2017static void 2018aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2019 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2020{ 2021 debug_called(4); 2022 2023 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2024 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2025 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2026 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2027 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2028} 2029 2030static void 2031aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2032 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2033{ 2034 debug_called(4); 2035 2036 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2037 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2038 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2039 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2040 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2041} 2042 2043static void 2044aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2045 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2046{ 2047 debug_called(4); 2048 2049 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2050 AAC_FA_HACK(sc); 2051 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2052 AAC_FA_HACK(sc); 2053 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2054 AAC_FA_HACK(sc); 2055 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2056 AAC_FA_HACK(sc); 2057 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2058 AAC_FA_HACK(sc); 2059} 2060 2061/* 2062 * Fetch the immediate command status word 2063 */ 2064static int 2065aac_sa_get_mailboxstatus(struct aac_softc *sc) 2066{ 2067 debug_called(4); 2068 2069 return(AAC_GETREG4(sc, AAC_SA_MAILBOX)); 2070} 2071 2072static int 2073aac_rx_get_mailboxstatus(struct aac_softc *sc) 2074{ 2075 debug_called(4); 2076 2077 return(AAC_GETREG4(sc, AAC_RX_MAILBOX)); 2078} 2079 2080static int 2081aac_fa_get_mailboxstatus(struct aac_softc *sc) 2082{ 2083 int val; 2084 2085 debug_called(4); 2086 2087 val = AAC_GETREG4(sc, AAC_FA_MAILBOX); 2088 return (val); 2089} 2090 2091/* 2092 * Set/clear interrupt masks 2093 */ 2094static void 2095aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2096{ 2097 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2098 2099 if (enable) { 2100 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2101 } else { 2102 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2103 } 2104} 2105 2106static void 2107aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2108{ 2109 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2110 2111 if (enable) { 2112 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2113 } else { 2114 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2115 } 2116} 2117 2118static void 2119aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2120{ 2121 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2122 2123 if (enable) { 2124 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2125 AAC_FA_HACK(sc); 2126 } else { 2127 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2128 AAC_FA_HACK(sc); 2129 } 2130} 2131 2132/* 2133 * Debugging and Diagnostics 2134 */ 2135 2136/* 2137 * Print some information about the controller. 2138 */ 2139static void 2140aac_describe_controller(struct aac_softc *sc) 2141{ 2142 struct aac_fib *fib; 2143 struct aac_adapter_info *info; 2144 2145 debug_called(2); 2146 2147 aac_alloc_sync_fib(sc, &fib, 0); 2148 2149 fib->data[0] = 0; 2150 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2151 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2152 aac_release_sync_fib(sc); 2153 return; 2154 } 2155 info = (struct aac_adapter_info *)&fib->data[0]; 2156 2157 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2158 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2159 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2160 aac_describe_code(aac_battery_platform, 2161 info->batteryPlatform)); 2162 2163 /* save the kernel revision structure for later use */ 2164 sc->aac_revision = info->KernelRevision; 2165 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2166 info->KernelRevision.external.comp.major, 2167 info->KernelRevision.external.comp.minor, 2168 info->KernelRevision.external.comp.dash, 2169 info->KernelRevision.buildNumber, 2170 (u_int32_t)(info->SerialNumber & 0xffffff)); 2171 2172 aac_release_sync_fib(sc); 2173} 2174 2175/* 2176 * Look up a text description of a numeric error code and return a pointer to 2177 * same. 2178 */ 2179static char * 2180aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2181{ 2182 int i; 2183 2184 for (i = 0; table[i].string != NULL; i++) 2185 if (table[i].code == code) 2186 return(table[i].string); 2187 return(table[i + 1].string); 2188} 2189 2190/* 2191 * Management Interface 2192 */ 2193 2194static int 2195aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2196{ 2197 struct aac_softc *sc; 2198 2199 debug_called(2); 2200 2201 sc = dev->si_drv1; 2202 2203 /* Check to make sure the device isn't already open */ 2204 if (sc->aac_state & AAC_STATE_OPEN) { 2205 return EBUSY; 2206 } 2207 sc->aac_state |= AAC_STATE_OPEN; 2208 2209 return 0; 2210} 2211 2212static int 2213aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2214{ 2215 struct aac_softc *sc; 2216 2217 debug_called(2); 2218 2219 sc = dev->si_drv1; 2220 2221 /* Mark this unit as no longer open */ 2222 sc->aac_state &= ~AAC_STATE_OPEN; 2223 2224 return 0; 2225} 2226 2227static int 2228aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2229{ 2230 union aac_statrequest *as; 2231 struct aac_softc *sc; 2232 int error = 0; 2233 int i; 2234 2235 debug_called(2); 2236 2237 as = (union aac_statrequest *)arg; 2238 sc = dev->si_drv1; 2239 2240 switch (cmd) { 2241 case AACIO_STATS: 2242 switch (as->as_item) { 2243 case AACQ_FREE: 2244 case AACQ_BIO: 2245 case AACQ_READY: 2246 case AACQ_BUSY: 2247 case AACQ_COMPLETE: 2248 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2249 sizeof(struct aac_qstat)); 2250 break; 2251 default: 2252 error = ENOENT; 2253 break; 2254 } 2255 break; 2256 2257 case FSACTL_SENDFIB: 2258 arg = *(caddr_t*)arg; 2259 case FSACTL_LNX_SENDFIB: 2260 debug(1, "FSACTL_SENDFIB"); 2261 error = aac_ioctl_sendfib(sc, arg); 2262 break; 2263 case FSACTL_AIF_THREAD: 2264 case FSACTL_LNX_AIF_THREAD: 2265 debug(1, "FSACTL_AIF_THREAD"); 2266 error = EINVAL; 2267 break; 2268 case FSACTL_OPEN_GET_ADAPTER_FIB: 2269 arg = *(caddr_t*)arg; 2270 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2271 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2272 /* 2273 * Pass the caller out an AdapterFibContext. 2274 * 2275 * Note that because we only support one opener, we 2276 * basically ignore this. Set the caller's context to a magic 2277 * number just in case. 2278 * 2279 * The Linux code hands the driver a pointer into kernel space, 2280 * and then trusts it when the caller hands it back. Aiee! 2281 * Here, we give it the proc pointer of the per-adapter aif 2282 * thread. It's only used as a sanity check in other calls. 2283 */ 2284 i = (int)sc->aifthread; 2285 error = copyout(&i, arg, sizeof(i)); 2286 break; 2287 case FSACTL_GET_NEXT_ADAPTER_FIB: 2288 arg = *(caddr_t*)arg; 2289 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2290 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2291 error = aac_getnext_aif(sc, arg); 2292 break; 2293 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2294 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2295 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2296 /* don't do anything here */ 2297 break; 2298 case FSACTL_MINIPORT_REV_CHECK: 2299 arg = *(caddr_t*)arg; 2300 case FSACTL_LNX_MINIPORT_REV_CHECK: 2301 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2302 error = aac_rev_check(sc, arg); 2303 break; 2304 case FSACTL_QUERY_DISK: 2305 arg = *(caddr_t*)arg; 2306 case FSACTL_LNX_QUERY_DISK: 2307 debug(1, "FSACTL_QUERY_DISK"); 2308 error = aac_query_disk(sc, arg); 2309 break; 2310 case FSACTL_DELETE_DISK: 2311 case FSACTL_LNX_DELETE_DISK: 2312 /* 2313 * We don't trust the underland to tell us when to delete a 2314 * container, rather we rely on an AIF coming from the 2315 * controller 2316 */ 2317 error = 0; 2318 break; 2319 default: 2320 debug(1, "unsupported cmd 0x%lx\n", cmd); 2321 error = EINVAL; 2322 break; 2323 } 2324 return(error); 2325} 2326 2327static int 2328aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2329{ 2330 struct aac_softc *sc; 2331 int revents; 2332 2333 sc = dev->si_drv1; 2334 revents = 0; 2335 2336 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2337 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2338 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2339 revents |= poll_events & (POLLIN | POLLRDNORM); 2340 } 2341 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2342 2343 if (revents == 0) { 2344 if (poll_events & (POLLIN | POLLRDNORM)) 2345 selrecord(td, &sc->rcv_select); 2346 } 2347 2348 return (revents); 2349} 2350 2351/* 2352 * Send a FIB supplied from userspace 2353 */ 2354static int 2355aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2356{ 2357 struct aac_command *cm; 2358 int size, error; 2359 2360 debug_called(2); 2361 2362 cm = NULL; 2363 2364 /* 2365 * Get a command 2366 */ 2367 if (aac_alloc_command(sc, &cm)) { 2368 error = EBUSY; 2369 goto out; 2370 } 2371 2372 /* 2373 * Fetch the FIB header, then re-copy to get data as well. 2374 */ 2375 if ((error = copyin(ufib, cm->cm_fib, 2376 sizeof(struct aac_fib_header))) != 0) 2377 goto out; 2378 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2379 if (size > sizeof(struct aac_fib)) { 2380 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2381 size, sizeof(struct aac_fib)); 2382 size = sizeof(struct aac_fib); 2383 } 2384 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2385 goto out; 2386 cm->cm_fib->Header.Size = size; 2387 cm->cm_timestamp = time_second; 2388 2389 /* 2390 * Pass the FIB to the controller, wait for it to complete. 2391 */ 2392 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2393 device_printf(sc->aac_dev, 2394 "aac_wait_command return %d\n", error); 2395 goto out; 2396 } 2397 2398 /* 2399 * Copy the FIB and data back out to the caller. 2400 */ 2401 size = cm->cm_fib->Header.Size; 2402 if (size > sizeof(struct aac_fib)) { 2403 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2404 size, sizeof(struct aac_fib)); 2405 size = sizeof(struct aac_fib); 2406 } 2407 error = copyout(cm->cm_fib, ufib, size); 2408 2409out: 2410 if (cm != NULL) { 2411 aac_release_command(cm); 2412 } 2413 return(error); 2414} 2415 2416/* 2417 * Handle an AIF sent to us by the controller; queue it for later reference. 2418 * If the queue fills up, then drop the older entries. 2419 */ 2420static void 2421aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2422{ 2423 struct aac_aif_command *aif; 2424 struct aac_container *co, *co_next; 2425 struct aac_mntinfo *mi; 2426 struct aac_mntinforesp *mir = NULL; 2427 u_int16_t rsize; 2428 int next, found; 2429 int added = 0, i = 0; 2430 2431 debug_called(2); 2432 2433 aif = (struct aac_aif_command*)&fib->data[0]; 2434 aac_print_aif(sc, aif); 2435 2436 /* Is it an event that we should care about? */ 2437 switch (aif->command) { 2438 case AifCmdEventNotify: 2439 switch (aif->data.EN.type) { 2440 case AifEnAddContainer: 2441 case AifEnDeleteContainer: 2442 /* 2443 * A container was added or deleted, but the message 2444 * doesn't tell us anything else! Re-enumerate the 2445 * containers and sort things out. 2446 */ 2447 aac_alloc_sync_fib(sc, &fib, 0); 2448 mi = (struct aac_mntinfo *)&fib->data[0]; 2449 do { 2450 /* 2451 * Ask the controller for its containers one at 2452 * a time. 2453 * XXX What if the controller's list changes 2454 * midway through this enumaration? 2455 * XXX This should be done async. 2456 */ 2457 bzero(mi, sizeof(struct aac_mntinfo)); 2458 mi->Command = VM_NameServe; 2459 mi->MntType = FT_FILESYS; 2460 mi->MntCount = i; 2461 rsize = sizeof(mir); 2462 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2463 sizeof(struct aac_mntinfo))) { 2464 debug(2, "Error probing container %d\n", 2465 i); 2466 continue; 2467 } 2468 mir = (struct aac_mntinforesp *)&fib->data[0]; 2469 /* 2470 * Check the container against our list. 2471 * co->co_found was already set to 0 in a 2472 * previous run. 2473 */ 2474 if ((mir->Status == ST_OK) && 2475 (mir->MntTable[0].VolType != CT_NONE)) { 2476 found = 0; 2477 TAILQ_FOREACH(co, 2478 &sc->aac_container_tqh, 2479 co_link) { 2480 if (co->co_mntobj.ObjectId == 2481 mir->MntTable[0].ObjectId) { 2482 co->co_found = 1; 2483 found = 1; 2484 break; 2485 } 2486 } 2487 /* 2488 * If the container matched, continue 2489 * in the list. 2490 */ 2491 if (found) { 2492 i++; 2493 continue; 2494 } 2495 2496 /* 2497 * This is a new container. Do all the 2498 * appropriate things to set it up. 2499 */ 2500 aac_add_container(sc, mir, 1); 2501 added = 1; 2502 } 2503 i++; 2504 } while ((i < mir->MntRespCount) && 2505 (i < AAC_MAX_CONTAINERS)); 2506 aac_release_sync_fib(sc); 2507 2508 /* 2509 * Go through our list of containers and see which ones 2510 * were not marked 'found'. Since the controller didn't 2511 * list them they must have been deleted. Do the 2512 * appropriate steps to destroy the device. Also reset 2513 * the co->co_found field. 2514 */ 2515 co = TAILQ_FIRST(&sc->aac_container_tqh); 2516 while (co != NULL) { 2517 if (co->co_found == 0) { 2518 device_delete_child(sc->aac_dev, 2519 co->co_disk); 2520 co_next = TAILQ_NEXT(co, co_link); 2521 AAC_LOCK_ACQUIRE(&sc-> 2522 aac_container_lock); 2523 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2524 co_link); 2525 AAC_LOCK_RELEASE(&sc-> 2526 aac_container_lock); 2527 FREE(co, M_AACBUF); 2528 co = co_next; 2529 } else { 2530 co->co_found = 0; 2531 co = TAILQ_NEXT(co, co_link); 2532 } 2533 } 2534 2535 /* Attach the newly created containers */ 2536 if (added) 2537 bus_generic_attach(sc->aac_dev); 2538 2539 break; 2540 2541 default: 2542 break; 2543 } 2544 2545 default: 2546 break; 2547 } 2548 2549 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2550 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2551 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2552 if (next != sc->aac_aifq_tail) { 2553 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2554 sc->aac_aifq_head = next; 2555 2556 /* On the off chance that someone is sleeping for an aif... */ 2557 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2558 wakeup(sc->aac_aifq); 2559 /* Wakeup any poll()ers */ 2560 selwakeup(&sc->rcv_select); 2561 } 2562 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2563 2564 return; 2565} 2566 2567/* 2568 * Return the Revision of the driver to userspace and check to see if the 2569 * userspace app is possibly compatible. This is extremely bogus since 2570 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2571 * returning what the card reported. 2572 */ 2573static int 2574aac_rev_check(struct aac_softc *sc, caddr_t udata) 2575{ 2576 struct aac_rev_check rev_check; 2577 struct aac_rev_check_resp rev_check_resp; 2578 int error = 0; 2579 2580 debug_called(2); 2581 2582 /* 2583 * Copyin the revision struct from userspace 2584 */ 2585 if ((error = copyin(udata, (caddr_t)&rev_check, 2586 sizeof(struct aac_rev_check))) != 0) { 2587 return error; 2588 } 2589 2590 debug(2, "Userland revision= %d\n", 2591 rev_check.callingRevision.buildNumber); 2592 2593 /* 2594 * Doctor up the response struct. 2595 */ 2596 rev_check_resp.possiblyCompatible = 1; 2597 rev_check_resp.adapterSWRevision.external.ul = 2598 sc->aac_revision.external.ul; 2599 rev_check_resp.adapterSWRevision.buildNumber = 2600 sc->aac_revision.buildNumber; 2601 2602 return(copyout((caddr_t)&rev_check_resp, udata, 2603 sizeof(struct aac_rev_check_resp))); 2604} 2605 2606/* 2607 * Pass the caller the next AIF in their queue 2608 */ 2609static int 2610aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2611{ 2612 struct get_adapter_fib_ioctl agf; 2613 int error, s; 2614 2615 debug_called(2); 2616 2617 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2618 2619 /* 2620 * Check the magic number that we gave the caller. 2621 */ 2622 if (agf.AdapterFibContext != (int)sc->aifthread) { 2623 error = EFAULT; 2624 } else { 2625 2626 s = splbio(); 2627 error = aac_return_aif(sc, agf.AifFib); 2628 2629 if ((error == EAGAIN) && (agf.Wait)) { 2630 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2631 while (error == EAGAIN) { 2632 error = tsleep(sc->aac_aifq, PRIBIO | 2633 PCATCH, "aacaif", 0); 2634 if (error == 0) 2635 error = aac_return_aif(sc, 2636 agf.AifFib); 2637 } 2638 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2639 } 2640 splx(s); 2641 } 2642 } 2643 return(error); 2644} 2645 2646/* 2647 * Hand the next AIF off the top of the queue out to userspace. 2648 */ 2649static int 2650aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2651{ 2652 int error; 2653 2654 debug_called(2); 2655 2656 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2657 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2658 error = EAGAIN; 2659 } else { 2660 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2661 sizeof(struct aac_aif_command)); 2662 if (error) 2663 device_printf(sc->aac_dev, 2664 "aac_return_aif: copyout returned %d\n", error); 2665 if (!error) 2666 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2667 AAC_AIFQ_LENGTH; 2668 } 2669 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2670 return(error); 2671} 2672 2673/* 2674 * Give the userland some information about the container. The AAC arch 2675 * expects the driver to be a SCSI passthrough type driver, so it expects 2676 * the containers to have b:t:l numbers. Fake it. 2677 */ 2678static int 2679aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2680{ 2681 struct aac_query_disk query_disk; 2682 struct aac_container *co; 2683 struct aac_disk *disk; 2684 int error, id; 2685 2686 debug_called(2); 2687 2688 disk = NULL; 2689 2690 error = copyin(uptr, (caddr_t)&query_disk, 2691 sizeof(struct aac_query_disk)); 2692 if (error) 2693 return (error); 2694 2695 id = query_disk.ContainerNumber; 2696 if (id == -1) 2697 return (EINVAL); 2698 2699 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2700 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2701 if (co->co_mntobj.ObjectId == id) 2702 break; 2703 } 2704 2705 if (co == NULL) { 2706 query_disk.Valid = 0; 2707 query_disk.Locked = 0; 2708 query_disk.Deleted = 1; /* XXX is this right? */ 2709 } else { 2710 disk = device_get_softc(co->co_disk); 2711 query_disk.Valid = 1; 2712 query_disk.Locked = 2713 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2714 query_disk.Deleted = 0; 2715 query_disk.Bus = device_get_unit(sc->aac_dev); 2716 query_disk.Target = disk->unit; 2717 query_disk.Lun = 0; 2718 query_disk.UnMapped = 0; 2719 sprintf(&query_disk.diskDeviceName[0], "%s%d", 2720 disk->ad_disk.d_name, disk->ad_disk.d_unit); 2721 } 2722 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2723 2724 error = copyout((caddr_t)&query_disk, uptr, 2725 sizeof(struct aac_query_disk)); 2726 2727 return (error); 2728} 2729 2730static void 2731aac_get_bus_info(struct aac_softc *sc) 2732{ 2733 struct aac_fib *fib; 2734 struct aac_ctcfg *c_cmd; 2735 struct aac_ctcfg_resp *c_resp; 2736 struct aac_vmioctl *vmi; 2737 struct aac_vmi_businf_resp *vmi_resp; 2738 struct aac_getbusinf businfo; 2739 struct aac_sim *caminf; 2740 device_t child; 2741 int i, found, error; 2742 2743 aac_alloc_sync_fib(sc, &fib, 0); 2744 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2745 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2746 2747 c_cmd->Command = VM_ContainerConfig; 2748 c_cmd->cmd = CT_GET_SCSI_METHOD; 2749 c_cmd->param = 0; 2750 2751 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2752 sizeof(struct aac_ctcfg)); 2753 if (error) { 2754 device_printf(sc->aac_dev, "Error %d sending " 2755 "VM_ContainerConfig command\n", error); 2756 aac_release_sync_fib(sc); 2757 return; 2758 } 2759 2760 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2761 if (c_resp->Status != ST_OK) { 2762 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2763 c_resp->Status); 2764 aac_release_sync_fib(sc); 2765 return; 2766 } 2767 2768 sc->scsi_method_id = c_resp->param; 2769 2770 vmi = (struct aac_vmioctl *)&fib->data[0]; 2771 bzero(vmi, sizeof(struct aac_vmioctl)); 2772 2773 vmi->Command = VM_Ioctl; 2774 vmi->ObjType = FT_DRIVE; 2775 vmi->MethId = sc->scsi_method_id; 2776 vmi->ObjId = 0; 2777 vmi->IoctlCmd = GetBusInfo; 2778 2779 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2780 sizeof(struct aac_vmioctl)); 2781 if (error) { 2782 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2783 error); 2784 aac_release_sync_fib(sc); 2785 return; 2786 } 2787 2788 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2789 if (vmi_resp->Status != ST_OK) { 2790 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2791 vmi_resp->Status); 2792 aac_release_sync_fib(sc); 2793 return; 2794 } 2795 2796 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2797 aac_release_sync_fib(sc); 2798 2799 found = 0; 2800 for (i = 0; i < businfo.BusCount; i++) { 2801 if (businfo.BusValid[i] != AAC_BUS_VALID) 2802 continue; 2803 2804 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), 2805 M_AACBUF, M_NOWAIT | M_ZERO); 2806 if (caminf == NULL) 2807 continue; 2808 2809 child = device_add_child(sc->aac_dev, "aacp", -1); 2810 if (child == NULL) { 2811 device_printf(sc->aac_dev, "device_add_child failed\n"); 2812 continue; 2813 } 2814 2815 caminf->TargetsPerBus = businfo.TargetsPerBus; 2816 caminf->BusNumber = i; 2817 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2818 caminf->aac_sc = sc; 2819 caminf->sim_dev = child; 2820 2821 device_set_ivars(child, caminf); 2822 device_set_desc(child, "SCSI Passthrough Bus"); 2823 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2824 2825 found = 1; 2826 } 2827 2828 if (found) 2829 bus_generic_attach(sc->aac_dev); 2830 2831 return; 2832} 2833