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 *
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29 * $FreeBSD: head/sys/dev/aac/aac.c 108329 2002-12-27 17:52:16Z rwatson $
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29 * $FreeBSD: head/sys/dev/aac/aac.c 109088 2003-01-11 01:59:21Z 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_host_command(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. 263 */ 264 if ((error = aac_alloc_commands(sc)) != 0) 265 return(error); 266 267 /* Init the sync fib lock */ 268 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 269 270 /* 271 * Initialise the adapter. 272 */ 273 if ((error = aac_init(sc)) != 0) 274 return(error); 275 276 /* 277 * Print a little information about the controller. 278 */ 279 aac_describe_controller(sc); 280 281 /* 282 * Register to probe our containers later. 283 */ 284 TAILQ_INIT(&sc->aac_container_tqh); 285 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 286 287 /* 288 * Lock for the AIF queue 289 */ 290 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 291 292 sc->aac_ich.ich_func = aac_startup; 293 sc->aac_ich.ich_arg = sc; 294 if (config_intrhook_establish(&sc->aac_ich) != 0) { 295 device_printf(sc->aac_dev, 296 "can't establish configuration hook\n"); 297 return(ENXIO); 298 } 299 300 /* 301 * Make the control device. 302 */ 303 unit = device_get_unit(sc->aac_dev); 304 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 305 0640, "aac%d", unit); 306#if __FreeBSD_version > 500005 307 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 308 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 309#endif 310 sc->aac_dev_t->si_drv1 = sc; 311 312 /* Create the AIF thread */ 313#if __FreeBSD_version > 500005 314 if (kthread_create((void(*)(void *))aac_host_command, sc, 315 &sc->aifthread, 0, 0, "aac%daif", unit)) 316#else 317 if (kthread_create((void(*)(void *))aac_host_command, sc, 318 &sc->aifthread, "aac%daif", unit)) 319#endif 320 panic("Could not create AIF thread\n"); 321 322 /* Register the shutdown method to only be called post-dump */ 323 if ((EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, sc->aac_dev, 324 SHUTDOWN_PRI_DEFAULT)) == NULL) 325 device_printf(sc->aac_dev, "shutdown event registration failed\n"); 326 327 /* Register with CAM for the non-DASD devices */ 328 if (!(sc->quirks & AAC_QUIRK_NOCAM)) 329 aac_get_bus_info(sc); 330 331 return(0); 332} 333 334/* 335 * Probe for containers, create disks. 336 */ 337static void 338aac_startup(void *arg) 339{ 340 struct aac_softc *sc; 341 struct aac_fib *fib; 342 struct aac_mntinfo *mi; 343 struct aac_mntinforesp *mir = NULL; 344 int i = 0; 345 346 debug_called(1); 347 348 sc = (struct aac_softc *)arg; 349 350 /* disconnect ourselves from the intrhook chain */ 351 config_intrhook_disestablish(&sc->aac_ich); 352 353 aac_alloc_sync_fib(sc, &fib, 0); 354 mi = (struct aac_mntinfo *)&fib->data[0]; 355 356 /* loop over possible containers */ 357 do { 358 /* request information on this container */ 359 bzero(mi, sizeof(struct aac_mntinfo)); 360 mi->Command = VM_NameServe; 361 mi->MntType = FT_FILESYS; 362 mi->MntCount = i; 363 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 364 sizeof(struct aac_mntinfo))) { 365 debug(2, "error probing container %d", i); 366 continue; 367 } 368 369 mir = (struct aac_mntinforesp *)&fib->data[0]; 370 aac_add_container(sc, mir, 0); 371 i++; 372 } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS)); 373 374 aac_release_sync_fib(sc); 375 376 /* poke the bus to actually attach the child devices */ 377 if (bus_generic_attach(sc->aac_dev)) 378 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 379 380 /* mark the controller up */ 381 sc->aac_state &= ~AAC_STATE_SUSPEND; 382 383 /* enable interrupts now */ 384 AAC_UNMASK_INTERRUPTS(sc); 385 386 /* enable the timeout watchdog */ 387 timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz); 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#if AAC_BROKEN 487 int error; 488#endif 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#if AAC_BROKEN 498 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 499 sc->aifflags |= AAC_AIFFLAGS_EXIT; 500 wakeup(sc->aifthread); 501 tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 502 } 503 504 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 505 panic("Cannot shutdown AIF thread\n"); 506 507 if ((error = aac_shutdown(dev))) 508 return(error); 509 510 aac_free(sc); 511 512 return(0); 513#else 514 return (EBUSY); 515#endif 516} 517 518/* 519 * Bring the controller down to a dormant state and detach all child devices. 520 * 521 * This function is called before detach or system shutdown. 522 * 523 * Note that we can assume that the bioq on the controller is empty, as we won't 524 * allow shutdown if any device is open. 525 */ 526int 527aac_shutdown(device_t dev) 528{ 529 struct aac_softc *sc; 530 struct aac_fib *fib; 531 struct aac_close_command *cc; 532 int s; 533 534 debug_called(1); 535 536 sc = device_get_softc(dev); 537 538 s = splbio(); 539 540 sc->aac_state |= AAC_STATE_SUSPEND; 541 542 /* 543 * Send a Container shutdown followed by a HostShutdown FIB to the 544 * controller to convince it that we don't want to talk to it anymore. 545 * We've been closed and all I/O completed already 546 */ 547 device_printf(sc->aac_dev, "shutting down controller..."); 548 549 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 550 cc = (struct aac_close_command *)&fib->data[0]; 551 552 bzero(cc, sizeof(struct aac_close_command)); 553 cc->Command = VM_CloseAll; 554 cc->ContainerId = 0xffffffff; 555 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 556 sizeof(struct aac_close_command))) 557 printf("FAILED.\n"); 558 else { 559 fib->data[0] = 0; 560 /* 561 * XXX Issuing this command to the controller makes it shut down 562 * but also keeps it from coming back up without a reset of the 563 * PCI bus. This is not desirable if you are just unloading the 564 * driver module with the intent to reload it later. 565 */ 566 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 567 fib, 1)) { 568 printf("FAILED.\n"); 569 } else { 570 printf("done.\n"); 571 } 572 } 573 574 AAC_MASK_INTERRUPTS(sc); 575 576 splx(s); 577 return(0); 578} 579 580/* 581 * Bring the controller to a quiescent state, ready for system suspend. 582 */ 583int 584aac_suspend(device_t dev) 585{ 586 struct aac_softc *sc; 587 int s; 588 589 debug_called(1); 590 591 sc = device_get_softc(dev); 592 593 s = splbio(); 594 595 sc->aac_state |= AAC_STATE_SUSPEND; 596 597 AAC_MASK_INTERRUPTS(sc); 598 splx(s); 599 return(0); 600} 601 602/* 603 * Bring the controller back to a state ready for operation. 604 */ 605int 606aac_resume(device_t dev) 607{ 608 struct aac_softc *sc; 609 610 debug_called(1); 611 612 sc = device_get_softc(dev); 613 614 sc->aac_state &= ~AAC_STATE_SUSPEND; 615 AAC_UNMASK_INTERRUPTS(sc); 616 return(0); 617} 618 619/* 620 * Take an interrupt. 621 */ 622void 623aac_intr(void *arg) 624{ 625 struct aac_softc *sc; 626 u_int16_t reason;
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627 u_int32_t *resp_queue; |
628 629 debug_called(2); 630 631 sc = (struct aac_softc *)arg; 632
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632 reason = AAC_GET_ISTATUS(sc);
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633 /* 634 * Optimize the common case of adapter response interrupts. 635 * We must read from the card prior to processing the responses 636 * to ensure the clear is flushed prior to accessing the queues. 637 * Reading the queues from local memory might save us a PCI read. 638 */ 639 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 640 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 641 reason = AAC_DB_RESPONSE_READY; 642 else 643 reason = AAC_GET_ISTATUS(sc); 644 AAC_CLEAR_ISTATUS(sc, reason); 645 (void)AAC_GET_ISTATUS(sc); |
646
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647 /* It's not ok to return here because of races with the previous step */ 648 if (reason & AAC_DB_RESPONSE_READY) 649 aac_host_response(sc); 650 |
651 /* controller wants to talk to the log */
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635 if (reason & AAC_DB_PRINTF) {
636 AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF);
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652 if (reason & AAC_DB_PRINTF) |
653 aac_print_printf(sc);
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638 }
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654 655 /* controller has a message for us? */ 656 if (reason & AAC_DB_COMMAND_READY) {
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642 AAC_CLEAR_ISTATUS(sc, AAC_DB_COMMAND_READY);
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657 /* XXX What happens if the thread is already awake? */ 658 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 659 sc->aifflags |= AAC_AIFFLAGS_PENDING; 660 wakeup(sc->aifthread); 661 } 662 }
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649
650 /* controller has a response for us? */
651 if (reason & AAC_DB_RESPONSE_READY) {
652 AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY);
653 aac_host_response(sc);
654 }
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663} |
664
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656 /*
657 * spurious interrupts that we don't use - reset the mask and clear the
658 * interrupts
659 */
660 if (reason & (AAC_DB_COMMAND_NOT_FULL | AAC_DB_RESPONSE_NOT_FULL)) {
661 AAC_UNMASK_INTERRUPTS(sc);
662 AAC_CLEAR_ISTATUS(sc, AAC_DB_COMMAND_NOT_FULL |
663 AAC_DB_RESPONSE_NOT_FULL);
664 }
665};
666
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665/* 666 * Command Processing 667 */ 668 669/* 670 * Start as much queued I/O as possible on the controller 671 */ 672void 673aac_startio(struct aac_softc *sc) 674{ 675 struct aac_command *cm; 676 677 debug_called(2); 678 679 for (;;) { 680 /* 681 * Try to get a command that's been put off for lack of 682 * resources 683 */ 684 cm = aac_dequeue_ready(sc); 685 686 /* 687 * Try to build a command off the bio queue (ignore error 688 * return) 689 */ 690 if (cm == NULL) 691 aac_bio_command(sc, &cm); 692 693 /* nothing to do? */ 694 if (cm == NULL) 695 break; 696 697 /* try to give the command to the controller */ 698 if (aac_start(cm) == EBUSY) { 699 /* put it on the ready queue for later */ 700 aac_requeue_ready(cm); 701 break; 702 } 703 } 704} 705 706/* 707 * Deliver a command to the controller; allocate controller resources at the 708 * last moment when possible. 709 */ 710static int 711aac_start(struct aac_command *cm) 712{ 713 struct aac_softc *sc; 714 int error; 715 716 debug_called(2); 717 718 sc = cm->cm_sc; 719 720 /* get the command mapped */ 721 aac_map_command(cm); 722 723 /* fix up the address values in the FIB */ 724 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 725 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 726 727 /* save a pointer to the command for speedy reverse-lookup */ 728 cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical 729 * address issue */
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732
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730 /* put the FIB on the outbound queue */ 731 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 732 return(error); 733} 734 735/* 736 * Handle notification of one or more FIBs coming from the controller. 737 */ 738static void 739aac_host_command(struct aac_softc *sc) 740{ 741 struct aac_fib *fib; 742 u_int32_t fib_size; 743 int size; 744 745 debug_called(2); 746 747 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 748 749 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 750 if (!(sc->aifflags & AAC_AIFFLAGS_PENDING)) 751 tsleep(sc->aifthread, PRIBIO, "aifthd", 15 * hz); 752 753 sc->aifflags &= ~AAC_AIFFLAGS_PENDING; 754 for (;;) { 755 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 756 &fib_size, &fib)) 757 break; /* nothing to do */ 758 759 AAC_PRINT_FIB(sc, fib); 760 761 switch (fib->Header.Command) { 762 case AifRequest: 763 aac_handle_aif(sc, fib); 764 break; 765 default: 766 device_printf(sc->aac_dev, "unknown command " 767 "from controller\n"); 768 break; 769 } 770 771 /* Return the AIF to the controller. */ 772 if ((fib->Header.XferState == 0) || 773 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 774 break; 775 776 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 777 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 778 *(AAC_FSAStatus*)fib->data = ST_OK; 779 780 /* XXX Compute the Size field? */ 781 size = fib->Header.Size; 782 if (size > sizeof(struct aac_fib)) { 783 size = sizeof(struct aac_fib); 784 fib->Header.Size = size; 785 } 786 /* 787 * Since we did not generate this command, it 788 * cannot go through the normal 789 * enqueue->startio chain. 790 */ 791 aac_enqueue_response(sc, 792 AAC_ADAP_NORM_RESP_QUEUE, 793 fib); 794 } 795 } 796 } 797 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 798 wakeup(sc->aac_dev); 799 800#if __FreeBSD_version > 500005 801 mtx_lock(&Giant); 802#endif 803 kthread_exit(0); 804} 805 806/* 807 * Handle notification of one or more FIBs completed by the controller 808 */ 809static void 810aac_host_response(struct aac_softc *sc) 811{ 812 struct aac_command *cm; 813 struct aac_fib *fib; 814 u_int32_t fib_size; 815 816 debug_called(2); 817 818 for (;;) { 819 /* look for completed FIBs on our queue */ 820 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 821 &fib)) 822 break; /* nothing to do */ 823 824 /* get the command, unmap and queue for later processing */ 825 cm = (struct aac_command *)fib->Header.SenderData; 826 if (cm == NULL) { 827 AAC_PRINT_FIB(sc, fib); 828 } else { 829 aac_remove_busy(cm); 830 aac_unmap_command(cm); /* XXX defer? */ 831 aac_enqueue_complete(cm); 832 } 833 } 834 835 /* handle completion processing */ 836#if __FreeBSD_version >= 500005 837 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 838#else 839 aac_complete(sc, 0); 840#endif 841} 842 843/* 844 * Process completed commands. 845 */ 846static void 847aac_complete(void *context, int pending) 848{ 849 struct aac_softc *sc; 850 struct aac_command *cm; 851 852 debug_called(2); 853 854 sc = (struct aac_softc *)context; 855 856 /* pull completed commands off the queue */ 857 for (;;) { 858 cm = aac_dequeue_complete(sc); 859 if (cm == NULL) 860 break; 861 cm->cm_flags |= AAC_CMD_COMPLETED; 862 863 /* is there a completion handler? */ 864 if (cm->cm_complete != NULL) { 865 cm->cm_complete(cm); 866 } else { 867 /* assume that someone is sleeping on this command */ 868 wakeup(cm); 869 } 870 } 871 872 /* see if we can start some more I/O */ 873 aac_startio(sc); 874} 875 876/* 877 * Handle a bio submitted from a disk device. 878 */ 879void 880aac_submit_bio(struct bio *bp) 881{ 882 struct aac_disk *ad; 883 struct aac_softc *sc; 884 885 debug_called(2); 886 887 ad = (struct aac_disk *)bp->bio_dev->si_drv1; 888 sc = ad->ad_controller; 889 890 /* queue the BIO and try to get some work done */ 891 aac_enqueue_bio(sc, bp); 892 aac_startio(sc); 893} 894 895/* 896 * Get a bio and build a command to go with it. 897 */ 898static int 899aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 900{ 901 struct aac_command *cm; 902 struct aac_fib *fib; 903 struct aac_blockread *br; 904 struct aac_blockwrite *bw; 905 struct aac_disk *ad; 906 struct bio *bp; 907 908 debug_called(2); 909 910 /* get the resources we will need */ 911 cm = NULL; 912 if ((bp = aac_dequeue_bio(sc)) == NULL) 913 goto fail; 914 if (aac_alloc_command(sc, &cm)) /* get a command */ 915 goto fail; 916 917 /* fill out the command */ 918 cm->cm_data = (void *)bp->bio_data; 919 cm->cm_datalen = bp->bio_bcount; 920 cm->cm_complete = aac_bio_complete; 921 cm->cm_private = bp; 922 cm->cm_timestamp = time_second; 923 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 924 925 /* build the FIB */ 926 fib = cm->cm_fib; 927 fib->Header.XferState =
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931 AAC_FIBSTATE_HOSTOWNED |
932 AAC_FIBSTATE_INITIALISED |
933 AAC_FIBSTATE_FROMHOST |
934 AAC_FIBSTATE_REXPECTED |
935 AAC_FIBSTATE_NORM;
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928 AAC_FIBSTATE_HOSTOWNED | 929 AAC_FIBSTATE_INITIALISED | 930 AAC_FIBSTATE_EMPTY | 931 AAC_FIBSTATE_FROMHOST | 932 AAC_FIBSTATE_REXPECTED | 933 AAC_FIBSTATE_NORM | 934 AAC_FIBSTATE_ASYNC | 935 AAC_FIBSTATE_FAST_RESPONSE; |
936 fib->Header.Command = ContainerCommand; 937 fib->Header.Size = sizeof(struct aac_fib_header); 938 939 /* build the read/write request */ 940 ad = (struct aac_disk *)bp->bio_dev->si_drv1; 941 if (BIO_IS_READ(bp)) { 942 br = (struct aac_blockread *)&fib->data[0]; 943 br->Command = VM_CtBlockRead; 944 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 945 br->BlockNumber = bp->bio_pblkno; 946 br->ByteCount = bp->bio_bcount; 947 fib->Header.Size += sizeof(struct aac_blockread); 948 cm->cm_sgtable = &br->SgMap; 949 cm->cm_flags |= AAC_CMD_DATAIN; 950 } else { 951 bw = (struct aac_blockwrite *)&fib->data[0]; 952 bw->Command = VM_CtBlockWrite; 953 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 954 bw->BlockNumber = bp->bio_pblkno; 955 bw->ByteCount = bp->bio_bcount; 956 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 957 fib->Header.Size += sizeof(struct aac_blockwrite); 958 cm->cm_flags |= AAC_CMD_DATAOUT; 959 cm->cm_sgtable = &bw->SgMap; 960 } 961 962 *cmp = cm; 963 return(0); 964 965fail: 966 if (bp != NULL) 967 aac_enqueue_bio(sc, bp); 968 if (cm != NULL) 969 aac_release_command(cm); 970 return(ENOMEM); 971} 972 973/* 974 * Handle a bio-instigated command that has been completed. 975 */ 976static void 977aac_bio_complete(struct aac_command *cm) 978{ 979 struct aac_blockread_response *brr; 980 struct aac_blockwrite_response *bwr; 981 struct bio *bp; 982 AAC_FSAStatus status; 983 984 /* fetch relevant status and then release the command */ 985 bp = (struct bio *)cm->cm_private; 986 if (BIO_IS_READ(bp)) { 987 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 988 status = brr->Status; 989 } else { 990 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 991 status = bwr->Status; 992 } 993 aac_release_command(cm); 994 995 /* fix up the bio based on status */ 996 if (status == ST_OK) { 997 bp->bio_resid = 0; 998 } else { 999 bp->bio_error = EIO; 1000 bp->bio_flags |= BIO_ERROR; 1001 /* pass an error string out to the disk layer */ 1002 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1003 status); 1004 } 1005 aac_biodone(bp); 1006} 1007 1008/* 1009 * Submit a command to the controller, return when it completes. 1010 * XXX This is very dangerous! If the card has gone out to lunch, we could 1011 * be stuck here forever. At the same time, signals are not caught 1012 * because there is a risk that a signal could wakeup the tsleep before 1013 * the card has a chance to complete the command. The passed in timeout 1014 * is ignored for the same reason. Since there is no way to cancel a 1015 * command in progress, we should probably create a 'dead' queue where 1016 * commands go that have been interrupted/timed-out/etc, that keeps them 1017 * out of the free pool. That way, if the card is just slow, it won't 1018 * spam the memory of a command that has been recycled. 1019 */ 1020static int 1021aac_wait_command(struct aac_command *cm, int timeout) 1022{ 1023 int s, error = 0; 1024 1025 debug_called(2); 1026 1027 /* Put the command on the ready queue and get things going */ 1028 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1029 aac_enqueue_ready(cm); 1030 aac_startio(cm->cm_sc); 1031 s = splbio(); 1032 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1033 error = tsleep(cm, PRIBIO, "aacwait", 0); 1034 } 1035 splx(s); 1036 return(error); 1037} 1038 1039/* 1040 *Command Buffer Management 1041 */ 1042 1043/* 1044 * Allocate a command. 1045 */ 1046int 1047aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1048{ 1049 struct aac_command *cm; 1050 1051 debug_called(3); 1052 1053 if ((cm = aac_dequeue_free(sc)) == NULL) 1054 return(ENOMEM); 1055 1056 *cmp = cm; 1057 return(0); 1058} 1059 1060/* 1061 * Release a command back to the freelist. 1062 */ 1063void 1064aac_release_command(struct aac_command *cm) 1065{ 1066 debug_called(3); 1067 1068 /* (re)initialise the command/FIB */ 1069 cm->cm_sgtable = NULL; 1070 cm->cm_flags = 0; 1071 cm->cm_complete = NULL; 1072 cm->cm_private = NULL; 1073 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1074 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1075 cm->cm_fib->Header.Flags = 0; 1076 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1077 1078 /* 1079 * These are duplicated in aac_start to cover the case where an 1080 * intermediate stage may have destroyed them. They're left 1081 * initialised here for debugging purposes only. 1082 */ 1083 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
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1084 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys;
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1084 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1085 cm->cm_fib->Header.SenderData = 0; |
1086 1087 aac_enqueue_free(cm); 1088} 1089 1090/* 1091 * Map helper for command/FIB allocation. 1092 */ 1093static void 1094aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1095{ 1096 struct aac_softc *sc; 1097 1098 sc = (struct aac_softc *)arg; 1099 1100 debug_called(3); 1101 1102 sc->aac_fibphys = segs[0].ds_addr; 1103} 1104 1105/* 1106 * Allocate and initialise commands/FIBs for this adapter. 1107 */ 1108static int 1109aac_alloc_commands(struct aac_softc *sc) 1110{ 1111 struct aac_command *cm; 1112 int i; 1113 1114 debug_called(1); 1115 1116 /* allocate the FIBs in DMAable memory and load them */ 1117 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs, 1118 BUS_DMA_NOWAIT, &sc->aac_fibmap)) { 1119 printf("Not enough contiguous memory available.\n"); 1120 return (ENOMEM); 1121 } 1122 bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs, 1123 AAC_FIB_COUNT * sizeof(struct aac_fib), 1124 aac_map_command_helper, sc, 0);
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1124
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1125 bzero(sc->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); |
1126 /* initialise constant fields in the command structure */ 1127 for (i = 0; i < AAC_FIB_COUNT; i++) { 1128 cm = &sc->aac_command[i]; 1129 cm->cm_sc = sc; 1130 cm->cm_fib = sc->aac_fibs + i; 1131 cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib)); 1132 1133 if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap)) 1134 aac_release_command(cm); 1135 } 1136 return (0); 1137} 1138 1139/* 1140 * Free FIBs owned by this adapter. 1141 */ 1142static void 1143aac_free_commands(struct aac_softc *sc) 1144{ 1145 int i; 1146 1147 debug_called(1); 1148 1149 for (i = 0; i < AAC_FIB_COUNT; i++) 1150 bus_dmamap_destroy(sc->aac_buffer_dmat, 1151 sc->aac_command[i].cm_datamap); 1152 1153 bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap); 1154 bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap); 1155} 1156 1157/* 1158 * Command-mapping helper function - populate this command's s/g table. 1159 */ 1160static void 1161aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1162{ 1163 struct aac_command *cm; 1164 struct aac_fib *fib; 1165 struct aac_sg_table *sg; 1166 int i; 1167 1168 debug_called(3); 1169 1170 cm = (struct aac_command *)arg; 1171 fib = cm->cm_fib; 1172 1173 /* find the s/g table */ 1174 sg = cm->cm_sgtable; 1175 1176 /* copy into the FIB */ 1177 if (sg != NULL) { 1178 sg->SgCount = nseg; 1179 for (i = 0; i < nseg; i++) { 1180 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1181 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1182 } 1183 /* update the FIB size for the s/g count */ 1184 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1185 } 1186 1187} 1188 1189/* 1190 * Map a command into controller-visible space. 1191 */ 1192static void 1193aac_map_command(struct aac_command *cm) 1194{ 1195 struct aac_softc *sc; 1196 1197 debug_called(2); 1198 1199 sc = cm->cm_sc; 1200 1201 /* don't map more than once */ 1202 if (cm->cm_flags & AAC_CMD_MAPPED) 1203 return; 1204 1205 if (cm->cm_datalen != 0) { 1206 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 1207 cm->cm_data, cm->cm_datalen, 1208 aac_map_command_sg, cm, 0); 1209
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1209 if (cm->cm_flags & AAC_CMD_DATAIN)
1210 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1211 BUS_DMASYNC_PREREAD);
1212 if (cm->cm_flags & AAC_CMD_DATAOUT)
1213 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1214 BUS_DMASYNC_PREWRITE);
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1210 if (cm->cm_flags & AAC_CMD_DATAIN) 1211 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1212 BUS_DMASYNC_PREREAD); 1213 if (cm->cm_flags & AAC_CMD_DATAOUT) 1214 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1215 BUS_DMASYNC_PREWRITE); |
1216 } 1217 cm->cm_flags |= AAC_CMD_MAPPED; 1218} 1219 1220/* 1221 * Unmap a command from controller-visible space. 1222 */ 1223static void 1224aac_unmap_command(struct aac_command *cm) 1225{ 1226 struct aac_softc *sc; 1227 1228 debug_called(2); 1229 1230 sc = cm->cm_sc; 1231 1232 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1233 return; 1234 1235 if (cm->cm_datalen != 0) { 1236 if (cm->cm_flags & AAC_CMD_DATAIN) 1237 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1238 BUS_DMASYNC_POSTREAD); 1239 if (cm->cm_flags & AAC_CMD_DATAOUT) 1240 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1241 BUS_DMASYNC_POSTWRITE); 1242 1243 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1244 } 1245 cm->cm_flags &= ~AAC_CMD_MAPPED; 1246} 1247 1248/* 1249 * Hardware Interface 1250 */ 1251 1252/* 1253 * Initialise the adapter. 1254 */ 1255static void 1256aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1257{ 1258 struct aac_softc *sc; 1259 1260 debug_called(1); 1261 1262 sc = (struct aac_softc *)arg; 1263 1264 sc->aac_common_busaddr = segs[0].ds_addr; 1265} 1266 1267/* 1268 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1269 * firmware version 1.x are not compatible with this driver. 1270 */ 1271static int 1272aac_check_firmware(struct aac_softc *sc) 1273{ 1274 u_int32_t major, minor; 1275 1276 debug_called(1); 1277 1278 if (sc->quirks & AAC_QUIRK_PERC2QC) { 1279 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1280 NULL)) { 1281 device_printf(sc->aac_dev, 1282 "Error reading firmware version\n"); 1283 return (EIO); 1284 } 1285 1286 /* These numbers are stored as ASCII! */ 1287 major = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 4) & 0xff) - 0x30; 1288 minor = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 8) & 0xff) - 0x30; 1289 if (major == 1) { 1290 device_printf(sc->aac_dev, 1291 "Firmware version %d.%d is not supported.\n", 1292 major, minor); 1293 return (EINVAL); 1294 } 1295 } 1296 1297 return (0); 1298} 1299 1300static int 1301aac_init(struct aac_softc *sc) 1302{ 1303 struct aac_adapter_init *ip; 1304 time_t then; 1305 u_int32_t code; 1306 u_int8_t *qaddr; 1307 1308 debug_called(1); 1309 1310 /* 1311 * First wait for the adapter to come ready. 1312 */ 1313 then = time_second; 1314 do { 1315 code = AAC_GET_FWSTATUS(sc); 1316 if (code & AAC_SELF_TEST_FAILED) { 1317 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1318 return(ENXIO); 1319 } 1320 if (code & AAC_KERNEL_PANIC) { 1321 device_printf(sc->aac_dev, 1322 "FATAL: controller kernel panic\n"); 1323 return(ENXIO); 1324 } 1325 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1326 device_printf(sc->aac_dev, 1327 "FATAL: controller not coming ready, " 1328 "status %x\n", code); 1329 return(ENXIO); 1330 } 1331 } while (!(code & AAC_UP_AND_RUNNING)); 1332 1333 /* 1334 * Create DMA tag for the common structure and allocate it. 1335 */ 1336 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1337 1, 0, /* algnmnt, boundary */ 1338 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1339 BUS_SPACE_MAXADDR, /* highaddr */ 1340 NULL, NULL, /* filter, filterarg */ 1341 sizeof(struct aac_common), /* maxsize */ 1342 1, /* nsegments */ 1343 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1344 0, /* flags */ 1345 &sc->aac_common_dmat)) { 1346 device_printf(sc->aac_dev, 1347 "can't allocate common structure DMA tag\n"); 1348 return(ENOMEM); 1349 } 1350 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1351 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1352 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1353 return(ENOMEM); 1354 } 1355 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1356 sc->aac_common, sizeof(*sc->aac_common), aac_common_map, 1357 sc, 0); 1358 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1359 1360 /* 1361 * Fill in the init structure. This tells the adapter about the 1362 * physical location of various important shared data structures. 1363 */ 1364 ip = &sc->aac_common->ac_init; 1365 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION;
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1366 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; |
1367 1368 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1369 offsetof(struct aac_common, ac_fibs);
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1368 ip->AdapterFibsVirtualAddress = &sc->aac_common->ac_fibs[0];
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1370 ip->AdapterFibsVirtualAddress = (u_int32_t)&sc->aac_common->ac_fibs[0]; |
1371 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1372 ip->AdapterFibAlign = sizeof(struct aac_fib); 1373 1374 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1375 offsetof(struct aac_common, ac_printf); 1376 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1377
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1376 ip->HostPhysMemPages = 0; /* not used? */
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1378 /* The adapter assumes that pages are 4K in size */ 1379 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; |
1380 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1381 1382 /* 1383 * Initialise FIB queues. Note that it appears that the layout of the 1384 * indexes and the segmentation of the entries may be mandated by the 1385 * adapter, which is only told about the base of the queue index fields. 1386 * 1387 * The initial values of the indices are assumed to inform the adapter 1388 * of the sizes of the respective queues, and theoretically it could 1389 * work out the entire layout of the queue structures from this. We 1390 * take the easy route and just lay this area out like everyone else 1391 * does. 1392 * 1393 * The Linux driver uses a much more complex scheme whereby several 1394 * header records are kept for each queue. We use a couple of generic 1395 * list manipulation functions which 'know' the size of each list by 1396 * virtue of a table. 1397 */ 1398 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1399 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1400 sc->aac_queues = (struct aac_queue_table *)qaddr; 1401 ip->CommHeaderAddress = sc->aac_common_busaddr + 1402 ((u_int32_t)sc->aac_queues - 1403 (u_int32_t)sc->aac_common);
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1401 bzero(sc->aac_queues, sizeof(struct aac_queue_table));
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1404 1405 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1406 AAC_HOST_NORM_CMD_ENTRIES; 1407 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1408 AAC_HOST_NORM_CMD_ENTRIES; 1409 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1410 AAC_HOST_HIGH_CMD_ENTRIES; 1411 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1412 AAC_HOST_HIGH_CMD_ENTRIES; 1413 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1414 AAC_ADAP_NORM_CMD_ENTRIES; 1415 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1416 AAC_ADAP_NORM_CMD_ENTRIES; 1417 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1418 AAC_ADAP_HIGH_CMD_ENTRIES; 1419 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1420 AAC_ADAP_HIGH_CMD_ENTRIES; 1421 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1422 AAC_HOST_NORM_RESP_ENTRIES; 1423 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1424 AAC_HOST_NORM_RESP_ENTRIES; 1425 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1426 AAC_HOST_HIGH_RESP_ENTRIES; 1427 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1428 AAC_HOST_HIGH_RESP_ENTRIES; 1429 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1430 AAC_ADAP_NORM_RESP_ENTRIES; 1431 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1432 AAC_ADAP_NORM_RESP_ENTRIES; 1433 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1434 AAC_ADAP_HIGH_RESP_ENTRIES; 1435 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1436 AAC_ADAP_HIGH_RESP_ENTRIES; 1437 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1438 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1439 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1440 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1441 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1442 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1443 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1444 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1445 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1446 &sc->aac_queues->qt_HostNormRespQueue[0]; 1447 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1448 &sc->aac_queues->qt_HostHighRespQueue[0]; 1449 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1450 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1451 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1452 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1453 1454 /* 1455 * Do controller-type-specific initialisation 1456 */ 1457 switch (sc->aac_hwif) { 1458 case AAC_HWIF_I960RX: 1459 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1460 break; 1461 } 1462 1463 /* 1464 * Give the init structure to the controller. 1465 */ 1466 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1467 sc->aac_common_busaddr + 1468 offsetof(struct aac_common, ac_init), 0, 0, 0, 1469 NULL)) { 1470 device_printf(sc->aac_dev, 1471 "error establishing init structure\n"); 1472 return(EIO); 1473 } 1474 1475 return(0); 1476} 1477 1478/* 1479 * Send a synchronous command to the controller and wait for a result. 1480 */ 1481static int 1482aac_sync_command(struct aac_softc *sc, u_int32_t command, 1483 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1484 u_int32_t *sp) 1485{ 1486 time_t then; 1487 u_int32_t status; 1488 1489 debug_called(3); 1490 1491 /* populate the mailbox */ 1492 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1493 1494 /* ensure the sync command doorbell flag is cleared */ 1495 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1496 1497 /* then set it to signal the adapter */ 1498 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1499 1500 /* spin waiting for the command to complete */ 1501 then = time_second; 1502 do { 1503 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1504 debug(2, "timed out"); 1505 return(EIO); 1506 } 1507 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1508 1509 /* clear the completion flag */ 1510 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1511 1512 /* get the command status */ 1513 status = AAC_GET_MAILBOXSTATUS(sc); 1514 if (sp != NULL) 1515 *sp = status; 1516 return(0); 1517} 1518 1519/* 1520 * Grab the sync fib area. 1521 */ 1522int 1523aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1524{ 1525 1526 /* 1527 * If the force flag is set, the system is shutting down, or in 1528 * trouble. Ignore the mutex. 1529 */ 1530 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1531 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1532 1533 *fib = &sc->aac_common->ac_sync_fib; 1534 1535 return (1); 1536} 1537 1538/* 1539 * Release the sync fib area. 1540 */ 1541void 1542aac_release_sync_fib(struct aac_softc *sc) 1543{ 1544 1545 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1546} 1547 1548/* 1549 * Send a synchronous FIB to the controller and wait for a result. 1550 */ 1551int 1552aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1553 struct aac_fib *fib, u_int16_t datasize) 1554{ 1555 debug_called(3); 1556 1557 if (datasize > AAC_FIB_DATASIZE) 1558 return(EINVAL); 1559 1560 /* 1561 * Set up the sync FIB 1562 */ 1563 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1564 AAC_FIBSTATE_INITIALISED | 1565 AAC_FIBSTATE_EMPTY; 1566 fib->Header.XferState |= xferstate; 1567 fib->Header.Command = command; 1568 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1569 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1570 fib->Header.SenderSize = sizeof(struct aac_fib); 1571 fib->Header.SenderFibAddress = (u_int32_t)fib; 1572 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1573 offsetof(struct aac_common, 1574 ac_sync_fib); 1575 1576 /* 1577 * Give the FIB to the controller, wait for a response. 1578 */ 1579 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1580 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1581 debug(2, "IO error"); 1582 return(EIO); 1583 } 1584 1585 return (0); 1586} 1587 1588/* 1589 * Adapter-space FIB queue manipulation 1590 * 1591 * Note that the queue implementation here is a little funky; neither the PI or 1592 * CI will ever be zero. This behaviour is a controller feature. 1593 */ 1594static struct { 1595 int size; 1596 int notify; 1597} aac_qinfo[] = { 1598 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1599 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1600 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1601 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1602 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1603 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1604 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1605 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1606}; 1607 1608/* 1609 * Atomically insert an entry into the nominated queue, returns 0 on success or 1610 * EBUSY if the queue is full. 1611 * 1612 * Note: it would be more efficient to defer notifying the controller in 1613 * the case where we may be inserting several entries in rapid succession, 1614 * but implementing this usefully may be difficult (it would involve a 1615 * separate queue/notify interface). 1616 */ 1617static int 1618aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1619{ 1620 u_int32_t pi, ci; 1621 int s, error; 1622 u_int32_t fib_size; 1623 u_int32_t fib_addr; 1624 1625 debug_called(3); 1626 1627 fib_size = cm->cm_fib->Header.Size; 1628 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1629 1630 s = splbio(); 1631 1632 /* get the producer/consumer indices */ 1633 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1634 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1635 1636 /* wrap the queue? */ 1637 if (pi >= aac_qinfo[queue].size) 1638 pi = 0; 1639 1640 /* check for queue full */ 1641 if ((pi + 1) == ci) { 1642 error = EBUSY; 1643 goto out; 1644 } 1645 1646 /* populate queue entry */ 1647 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1648 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1649 1650 /* update producer index */ 1651 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1652 1653 /* 1654 * To avoid a race with its completion interrupt, place this command on 1655 * the busy queue prior to advertising it to the controller. 1656 */ 1657 aac_enqueue_busy(cm); 1658 1659 /* notify the adapter if we know how */ 1660 if (aac_qinfo[queue].notify != 0) 1661 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1662 1663 error = 0; 1664 1665out: 1666 splx(s); 1667 return(error); 1668} 1669 1670/* 1671 * Atomically remove one entry from the nominated queue, returns 0 on 1672 * success or ENOENT if the queue is empty. 1673 */ 1674static int 1675aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1676 struct aac_fib **fib_addr) 1677{ 1678 u_int32_t pi, ci; 1679 int s, error; 1680 int notify; 1681 1682 debug_called(3); 1683 1684 s = splbio(); 1685 1686 /* get the producer/consumer indices */ 1687 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1688 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1689 1690 /* check for queue empty */ 1691 if (ci == pi) { 1692 error = ENOENT; 1693 goto out; 1694 } 1695 1696 notify = 0; 1697 if (ci == pi + 1) 1698 notify++; 1699 1700 /* wrap the queue? */ 1701 if (ci >= aac_qinfo[queue].size) 1702 ci = 0; 1703 1704 /* fetch the entry */ 1705 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1706 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + 1707 ci)->aq_fib_addr; 1708
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1709 /* 1710 * Is this a fast response? If it is, update the fib fields in 1711 * local memory so the whole fib doesn't have to be DMA'd back up. 1712 */ 1713 if (*(uintptr_t *)fib_addr & 0x01) { 1714 *(uintptr_t *)fib_addr &= ~0x01; 1715 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1716 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1717 } |
1718 /* update consumer index */ 1719 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1720 1721 /* if we have made the queue un-full, notify the adapter */ 1722 if (notify && (aac_qinfo[queue].notify != 0)) 1723 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1724 error = 0; 1725 1726out: 1727 splx(s); 1728 return(error); 1729} 1730 1731/* 1732 * Put our response to an Adapter Initialed Fib on the response queue 1733 */ 1734static int 1735aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1736{ 1737 u_int32_t pi, ci; 1738 int s, error; 1739 u_int32_t fib_size; 1740 u_int32_t fib_addr; 1741 1742 debug_called(1); 1743 1744 /* Tell the adapter where the FIB is */ 1745 fib_size = fib->Header.Size; 1746 fib_addr = fib->Header.SenderFibAddress; 1747 fib->Header.ReceiverFibAddress = fib_addr; 1748 1749 s = splbio(); 1750 1751 /* get the producer/consumer indices */ 1752 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1753 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1754 1755 /* wrap the queue? */ 1756 if (pi >= aac_qinfo[queue].size) 1757 pi = 0; 1758 1759 /* check for queue full */ 1760 if ((pi + 1) == ci) { 1761 error = EBUSY; 1762 goto out; 1763 } 1764 1765 /* populate queue entry */ 1766 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1767 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1768 1769 /* update producer index */ 1770 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1771 1772 /* notify the adapter if we know how */ 1773 if (aac_qinfo[queue].notify != 0) 1774 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1775 1776 error = 0; 1777 1778out: 1779 splx(s); 1780 return(error); 1781} 1782 1783/* 1784 * Check for commands that have been outstanding for a suspiciously long time, 1785 * and complain about them. 1786 */ 1787static void 1788aac_timeout(struct aac_softc *sc) 1789{ 1790 int s; 1791 struct aac_command *cm; 1792 time_t deadline; 1793 1794#if 0 1795 /* simulate an interrupt to handle possibly-missed interrupts */ 1796 /* 1797 * XXX This was done to work around another bug which has since been 1798 * fixed. It is dangerous anyways because you don't want multiple 1799 * threads in the interrupt handler at the same time! If calling 1800 * is deamed neccesary in the future, proper mutexes must be used. 1801 */ 1802 s = splbio(); 1803 aac_intr(sc); 1804 splx(s); 1805 1806 /* kick the I/O queue to restart it in the case of deadlock */ 1807 aac_startio(sc); 1808#endif 1809 1810 /* 1811 * traverse the busy command list, bitch about late commands once 1812 * only. 1813 */ 1814 deadline = time_second - AAC_CMD_TIMEOUT; 1815 s = splbio(); 1816 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1817 if ((cm->cm_timestamp < deadline) 1818 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1819 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1820 device_printf(sc->aac_dev, 1821 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 1822 cm, (int)(time_second-cm->cm_timestamp)); 1823 AAC_PRINT_FIB(sc, cm->cm_fib); 1824 } 1825 } 1826 splx(s); 1827 1828 /* reset the timer for next time */ 1829 timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz); 1830 return; 1831} 1832 1833/* 1834 * Interface Function Vectors 1835 */ 1836 1837/* 1838 * Read the current firmware status word. 1839 */ 1840static int 1841aac_sa_get_fwstatus(struct aac_softc *sc) 1842{ 1843 debug_called(3); 1844 1845 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 1846} 1847 1848static int 1849aac_rx_get_fwstatus(struct aac_softc *sc) 1850{ 1851 debug_called(3); 1852 1853 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 1854} 1855 1856static int 1857aac_fa_get_fwstatus(struct aac_softc *sc) 1858{ 1859 int val; 1860 1861 debug_called(3); 1862 1863 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 1864 return (val); 1865} 1866 1867/* 1868 * Notify the controller of a change in a given queue 1869 */ 1870 1871static void 1872aac_sa_qnotify(struct aac_softc *sc, int qbit) 1873{ 1874 debug_called(3); 1875 1876 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 1877} 1878 1879static void 1880aac_rx_qnotify(struct aac_softc *sc, int qbit) 1881{ 1882 debug_called(3); 1883 1884 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 1885} 1886 1887static void 1888aac_fa_qnotify(struct aac_softc *sc, int qbit) 1889{ 1890 debug_called(3); 1891 1892 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 1893 AAC_FA_HACK(sc); 1894} 1895 1896/* 1897 * Get the interrupt reason bits 1898 */ 1899static int 1900aac_sa_get_istatus(struct aac_softc *sc) 1901{ 1902 debug_called(3); 1903 1904 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 1905} 1906 1907static int 1908aac_rx_get_istatus(struct aac_softc *sc) 1909{ 1910 debug_called(3); 1911 1912 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 1913} 1914 1915static int 1916aac_fa_get_istatus(struct aac_softc *sc) 1917{ 1918 int val; 1919 1920 debug_called(3); 1921 1922 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 1923 return (val); 1924} 1925 1926/* 1927 * Clear some interrupt reason bits 1928 */ 1929static void 1930aac_sa_clear_istatus(struct aac_softc *sc, int mask) 1931{ 1932 debug_called(3); 1933 1934 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 1935} 1936 1937static void 1938aac_rx_clear_istatus(struct aac_softc *sc, int mask) 1939{ 1940 debug_called(3); 1941 1942 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 1943} 1944 1945static void 1946aac_fa_clear_istatus(struct aac_softc *sc, int mask) 1947{ 1948 debug_called(3); 1949 1950 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 1951 AAC_FA_HACK(sc); 1952} 1953 1954/* 1955 * Populate the mailbox and set the command word 1956 */ 1957static void 1958aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 1959 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 1960{ 1961 debug_called(4); 1962 1963 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 1964 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 1965 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 1966 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 1967 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 1968} 1969 1970static void 1971aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 1972 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 1973{ 1974 debug_called(4); 1975 1976 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 1977 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 1978 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 1979 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 1980 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 1981} 1982 1983static void 1984aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 1985 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 1986{ 1987 debug_called(4); 1988 1989 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 1990 AAC_FA_HACK(sc); 1991 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 1992 AAC_FA_HACK(sc); 1993 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 1994 AAC_FA_HACK(sc); 1995 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 1996 AAC_FA_HACK(sc); 1997 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 1998 AAC_FA_HACK(sc); 1999} 2000 2001/* 2002 * Fetch the immediate command status word 2003 */ 2004static int 2005aac_sa_get_mailboxstatus(struct aac_softc *sc) 2006{ 2007 debug_called(4); 2008 2009 return(AAC_GETREG4(sc, AAC_SA_MAILBOX)); 2010} 2011 2012static int 2013aac_rx_get_mailboxstatus(struct aac_softc *sc) 2014{ 2015 debug_called(4); 2016 2017 return(AAC_GETREG4(sc, AAC_RX_MAILBOX)); 2018} 2019 2020static int 2021aac_fa_get_mailboxstatus(struct aac_softc *sc) 2022{ 2023 int val; 2024 2025 debug_called(4); 2026 2027 val = AAC_GETREG4(sc, AAC_FA_MAILBOX); 2028 return (val); 2029} 2030 2031/* 2032 * Set/clear interrupt masks 2033 */ 2034static void 2035aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2036{ 2037 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2038 2039 if (enable) { 2040 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2041 } else { 2042 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2043 } 2044} 2045 2046static void 2047aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2048{ 2049 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2050 2051 if (enable) { 2052 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2053 } else { 2054 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2055 } 2056} 2057 2058static void 2059aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2060{ 2061 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2062 2063 if (enable) { 2064 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2065 AAC_FA_HACK(sc); 2066 } else { 2067 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2068 AAC_FA_HACK(sc); 2069 } 2070} 2071 2072/* 2073 * Debugging and Diagnostics 2074 */ 2075 2076/* 2077 * Print some information about the controller. 2078 */ 2079static void 2080aac_describe_controller(struct aac_softc *sc) 2081{ 2082 struct aac_fib *fib; 2083 struct aac_adapter_info *info; 2084 2085 debug_called(2); 2086 2087 aac_alloc_sync_fib(sc, &fib, 0); 2088 2089 fib->data[0] = 0; 2090 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2091 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2092 aac_release_sync_fib(sc); 2093 return; 2094 } 2095 info = (struct aac_adapter_info *)&fib->data[0]; 2096 2097 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2098 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2099 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2100 aac_describe_code(aac_battery_platform, 2101 info->batteryPlatform)); 2102 2103 /* save the kernel revision structure for later use */ 2104 sc->aac_revision = info->KernelRevision; 2105 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2106 info->KernelRevision.external.comp.major, 2107 info->KernelRevision.external.comp.minor, 2108 info->KernelRevision.external.comp.dash, 2109 info->KernelRevision.buildNumber, 2110 (u_int32_t)(info->SerialNumber & 0xffffff)); 2111 2112 aac_release_sync_fib(sc); 2113} 2114 2115/* 2116 * Look up a text description of a numeric error code and return a pointer to 2117 * same. 2118 */ 2119static char * 2120aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2121{ 2122 int i; 2123 2124 for (i = 0; table[i].string != NULL; i++) 2125 if (table[i].code == code) 2126 return(table[i].string); 2127 return(table[i + 1].string); 2128} 2129 2130/* 2131 * Management Interface 2132 */ 2133 2134static int 2135aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2136{ 2137 struct aac_softc *sc; 2138 2139 debug_called(2); 2140 2141 sc = dev->si_drv1; 2142 2143 /* Check to make sure the device isn't already open */ 2144 if (sc->aac_state & AAC_STATE_OPEN) { 2145 return EBUSY; 2146 } 2147 sc->aac_state |= AAC_STATE_OPEN; 2148 2149 return 0; 2150} 2151 2152static int 2153aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2154{ 2155 struct aac_softc *sc; 2156 2157 debug_called(2); 2158 2159 sc = dev->si_drv1; 2160 2161 /* Mark this unit as no longer open */ 2162 sc->aac_state &= ~AAC_STATE_OPEN; 2163 2164 return 0; 2165} 2166 2167static int 2168aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2169{ 2170 union aac_statrequest *as; 2171 struct aac_softc *sc; 2172 int error = 0; 2173 int i; 2174 2175 debug_called(2); 2176 2177 as = (union aac_statrequest *)arg; 2178 sc = dev->si_drv1; 2179 2180 switch (cmd) { 2181 case AACIO_STATS: 2182 switch (as->as_item) { 2183 case AACQ_FREE: 2184 case AACQ_BIO: 2185 case AACQ_READY: 2186 case AACQ_BUSY: 2187 case AACQ_COMPLETE: 2188 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2189 sizeof(struct aac_qstat)); 2190 break; 2191 default: 2192 error = ENOENT; 2193 break; 2194 } 2195 break; 2196 2197 case FSACTL_SENDFIB: 2198 arg = *(caddr_t*)arg; 2199 case FSACTL_LNX_SENDFIB: 2200 debug(1, "FSACTL_SENDFIB"); 2201 error = aac_ioctl_sendfib(sc, arg); 2202 break; 2203 case FSACTL_AIF_THREAD: 2204 case FSACTL_LNX_AIF_THREAD: 2205 debug(1, "FSACTL_AIF_THREAD"); 2206 error = EINVAL; 2207 break; 2208 case FSACTL_OPEN_GET_ADAPTER_FIB: 2209 arg = *(caddr_t*)arg; 2210 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2211 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2212 /* 2213 * Pass the caller out an AdapterFibContext. 2214 * 2215 * Note that because we only support one opener, we 2216 * basically ignore this. Set the caller's context to a magic 2217 * number just in case. 2218 * 2219 * The Linux code hands the driver a pointer into kernel space, 2220 * and then trusts it when the caller hands it back. Aiee! 2221 * Here, we give it the proc pointer of the per-adapter aif 2222 * thread. It's only used as a sanity check in other calls. 2223 */ 2224 i = (int)sc->aifthread; 2225 error = copyout(&i, arg, sizeof(i)); 2226 break; 2227 case FSACTL_GET_NEXT_ADAPTER_FIB: 2228 arg = *(caddr_t*)arg; 2229 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2230 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2231 error = aac_getnext_aif(sc, arg); 2232 break; 2233 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2234 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2235 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2236 /* don't do anything here */ 2237 break; 2238 case FSACTL_MINIPORT_REV_CHECK: 2239 arg = *(caddr_t*)arg; 2240 case FSACTL_LNX_MINIPORT_REV_CHECK: 2241 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2242 error = aac_rev_check(sc, arg); 2243 break; 2244 case FSACTL_QUERY_DISK: 2245 arg = *(caddr_t*)arg; 2246 case FSACTL_LNX_QUERY_DISK: 2247 debug(1, "FSACTL_QUERY_DISK"); 2248 error = aac_query_disk(sc, arg); 2249 break; 2250 case FSACTL_DELETE_DISK: 2251 case FSACTL_LNX_DELETE_DISK: 2252 /* 2253 * We don't trust the underland to tell us when to delete a 2254 * container, rather we rely on an AIF coming from the 2255 * controller 2256 */ 2257 error = 0; 2258 break; 2259 default: 2260 debug(1, "unsupported cmd 0x%lx\n", cmd); 2261 error = EINVAL; 2262 break; 2263 } 2264 return(error); 2265} 2266 2267static int 2268aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2269{ 2270 struct aac_softc *sc; 2271 int revents; 2272 2273 sc = dev->si_drv1; 2274 revents = 0; 2275 2276 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2277 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2278 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2279 revents |= poll_events & (POLLIN | POLLRDNORM); 2280 } 2281 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2282 2283 if (revents == 0) { 2284 if (poll_events & (POLLIN | POLLRDNORM)) 2285 selrecord(td, &sc->rcv_select); 2286 } 2287 2288 return (revents); 2289} 2290 2291/* 2292 * Send a FIB supplied from userspace 2293 */ 2294static int 2295aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2296{ 2297 struct aac_command *cm; 2298 int size, error; 2299 2300 debug_called(2); 2301 2302 cm = NULL; 2303 2304 /* 2305 * Get a command 2306 */ 2307 if (aac_alloc_command(sc, &cm)) { 2308 error = EBUSY; 2309 goto out; 2310 } 2311 2312 /* 2313 * Fetch the FIB header, then re-copy to get data as well. 2314 */ 2315 if ((error = copyin(ufib, cm->cm_fib, 2316 sizeof(struct aac_fib_header))) != 0) 2317 goto out; 2318 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2319 if (size > sizeof(struct aac_fib)) { 2320 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2321 size, sizeof(struct aac_fib)); 2322 size = sizeof(struct aac_fib); 2323 } 2324 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2325 goto out; 2326 cm->cm_fib->Header.Size = size; 2327 cm->cm_timestamp = time_second; 2328 2329 /* 2330 * Pass the FIB to the controller, wait for it to complete. 2331 */ 2332 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2333 printf("aac_wait_command return %d\n", error); 2334 goto out; 2335 } 2336 2337 /* 2338 * Copy the FIB and data back out to the caller. 2339 */ 2340 size = cm->cm_fib->Header.Size; 2341 if (size > sizeof(struct aac_fib)) { 2342 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2343 size, sizeof(struct aac_fib)); 2344 size = sizeof(struct aac_fib); 2345 } 2346 error = copyout(cm->cm_fib, ufib, size); 2347 2348out: 2349 if (cm != NULL) { 2350 aac_release_command(cm); 2351 } 2352 return(error); 2353} 2354 2355/* 2356 * Handle an AIF sent to us by the controller; queue it for later reference. 2357 * If the queue fills up, then drop the older entries. 2358 */ 2359static void 2360aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2361{ 2362 struct aac_aif_command *aif; 2363 struct aac_container *co, *co_next; 2364 struct aac_mntinfo *mi; 2365 struct aac_mntinforesp *mir = NULL; 2366 u_int16_t rsize; 2367 int next, found; 2368 int added = 0, i = 0; 2369 2370 debug_called(2); 2371 2372 aif = (struct aac_aif_command*)&fib->data[0]; 2373 aac_print_aif(sc, aif); 2374 2375 /* Is it an event that we should care about? */ 2376 switch (aif->command) { 2377 case AifCmdEventNotify: 2378 switch (aif->data.EN.type) { 2379 case AifEnAddContainer: 2380 case AifEnDeleteContainer: 2381 /* 2382 * A container was added or deleted, but the message 2383 * doesn't tell us anything else! Re-enumerate the 2384 * containers and sort things out. 2385 */ 2386 aac_alloc_sync_fib(sc, &fib, 0); 2387 mi = (struct aac_mntinfo *)&fib->data[0]; 2388 do { 2389 /* 2390 * Ask the controller for its containers one at 2391 * a time. 2392 * XXX What if the controller's list changes 2393 * midway through this enumaration? 2394 * XXX This should be done async. 2395 */ 2396 bzero(mi, sizeof(struct aac_mntinfo)); 2397 mi->Command = VM_NameServe; 2398 mi->MntType = FT_FILESYS; 2399 mi->MntCount = i; 2400 rsize = sizeof(mir); 2401 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2402 sizeof(struct aac_mntinfo))) { 2403 debug(2, "Error probing container %d\n", 2404 i); 2405 continue; 2406 } 2407 mir = (struct aac_mntinforesp *)&fib->data[0]; 2408 /* 2409 * Check the container against our list. 2410 * co->co_found was already set to 0 in a 2411 * previous run. 2412 */ 2413 if ((mir->Status == ST_OK) && 2414 (mir->MntTable[0].VolType != CT_NONE)) { 2415 found = 0; 2416 TAILQ_FOREACH(co, 2417 &sc->aac_container_tqh, 2418 co_link) { 2419 if (co->co_mntobj.ObjectId == 2420 mir->MntTable[0].ObjectId) { 2421 co->co_found = 1; 2422 found = 1; 2423 break; 2424 } 2425 } 2426 /* 2427 * If the container matched, continue 2428 * in the list. 2429 */ 2430 if (found) { 2431 i++; 2432 continue; 2433 } 2434 2435 /* 2436 * This is a new container. Do all the 2437 * appropriate things to set it up. */ 2438 aac_add_container(sc, mir, 1); 2439 added = 1; 2440 } 2441 i++; 2442 } while ((i < mir->MntRespCount) && 2443 (i < AAC_MAX_CONTAINERS)); 2444 aac_release_sync_fib(sc); 2445 2446 /* 2447 * Go through our list of containers and see which ones 2448 * were not marked 'found'. Since the controller didn't 2449 * list them they must have been deleted. Do the 2450 * appropriate steps to destroy the device. Also reset 2451 * the co->co_found field. 2452 */ 2453 co = TAILQ_FIRST(&sc->aac_container_tqh); 2454 while (co != NULL) { 2455 if (co->co_found == 0) { 2456 device_delete_child(sc->aac_dev, 2457 co->co_disk); 2458 co_next = TAILQ_NEXT(co, co_link); 2459 AAC_LOCK_ACQUIRE(&sc-> 2460 aac_container_lock); 2461 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2462 co_link); 2463 AAC_LOCK_RELEASE(&sc-> 2464 aac_container_lock); 2465 FREE(co, M_AACBUF); 2466 co = co_next; 2467 } else { 2468 co->co_found = 0; 2469 co = TAILQ_NEXT(co, co_link); 2470 } 2471 } 2472 2473 /* Attach the newly created containers */ 2474 if (added) 2475 bus_generic_attach(sc->aac_dev); 2476 2477 break; 2478 2479 default: 2480 break; 2481 } 2482 2483 default: 2484 break; 2485 } 2486 2487 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2488 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2489 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2490 if (next != sc->aac_aifq_tail) { 2491 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2492 sc->aac_aifq_head = next; 2493 2494 /* On the off chance that someone is sleeping for an aif... */ 2495 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2496 wakeup(sc->aac_aifq); 2497 /* Wakeup any poll()ers */ 2498 selwakeup(&sc->rcv_select); 2499 } 2500 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2501 2502 return; 2503} 2504 2505/* 2506 * Return the Revision of the driver to userspace and check to see if the 2507 * userspace app is possibly compatible. This is extremely bogus since 2508 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2509 * returning what the card reported. 2510 */ 2511static int 2512aac_rev_check(struct aac_softc *sc, caddr_t udata) 2513{ 2514 struct aac_rev_check rev_check; 2515 struct aac_rev_check_resp rev_check_resp; 2516 int error = 0; 2517 2518 debug_called(2); 2519 2520 /* 2521 * Copyin the revision struct from userspace 2522 */ 2523 if ((error = copyin(udata, (caddr_t)&rev_check, 2524 sizeof(struct aac_rev_check))) != 0) { 2525 return error; 2526 } 2527 2528 debug(2, "Userland revision= %d\n", 2529 rev_check.callingRevision.buildNumber); 2530 2531 /* 2532 * Doctor up the response struct. 2533 */ 2534 rev_check_resp.possiblyCompatible = 1; 2535 rev_check_resp.adapterSWRevision.external.ul = 2536 sc->aac_revision.external.ul; 2537 rev_check_resp.adapterSWRevision.buildNumber = 2538 sc->aac_revision.buildNumber; 2539 2540 return(copyout((caddr_t)&rev_check_resp, udata, 2541 sizeof(struct aac_rev_check_resp))); 2542} 2543 2544/* 2545 * Pass the caller the next AIF in their queue 2546 */ 2547static int 2548aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2549{ 2550 struct get_adapter_fib_ioctl agf; 2551 int error, s; 2552 2553 debug_called(2); 2554 2555 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2556 2557 /* 2558 * Check the magic number that we gave the caller. 2559 */ 2560 if (agf.AdapterFibContext != (int)sc->aifthread) { 2561 error = EFAULT; 2562 } else { 2563 2564 s = splbio(); 2565 error = aac_return_aif(sc, agf.AifFib); 2566 2567 if ((error == EAGAIN) && (agf.Wait)) { 2568 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2569 while (error == EAGAIN) { 2570 error = tsleep(sc->aac_aifq, PRIBIO | 2571 PCATCH, "aacaif", 0); 2572 if (error == 0) 2573 error = aac_return_aif(sc, 2574 agf.AifFib); 2575 } 2576 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2577 } 2578 splx(s); 2579 } 2580 } 2581 return(error); 2582} 2583 2584/* 2585 * Hand the next AIF off the top of the queue out to userspace. 2586 */ 2587static int 2588aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2589{ 2590 int error; 2591 2592 debug_called(2); 2593 2594 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2595 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2596 error = EAGAIN; 2597 } else { 2598 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2599 sizeof(struct aac_aif_command)); 2600 if (error) 2601 printf("aac_return_aif: copyout returned %d\n", error); 2602 if (!error) 2603 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2604 AAC_AIFQ_LENGTH; 2605 } 2606 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2607 return(error); 2608} 2609 2610/* 2611 * Give the userland some information about the container. The AAC arch 2612 * expects the driver to be a SCSI passthrough type driver, so it expects 2613 * the containers to have b:t:l numbers. Fake it. 2614 */ 2615static int 2616aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2617{ 2618 struct aac_query_disk query_disk; 2619 struct aac_container *co; 2620 struct aac_disk *disk; 2621 int error, id; 2622 2623 debug_called(2); 2624 2625 disk = NULL; 2626 2627 error = copyin(uptr, (caddr_t)&query_disk, 2628 sizeof(struct aac_query_disk)); 2629 if (error) 2630 return (error); 2631 2632 id = query_disk.ContainerNumber; 2633 if (id == -1) 2634 return (EINVAL); 2635 2636 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2637 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2638 if (co->co_mntobj.ObjectId == id) 2639 break; 2640 } 2641 2642 if (co == NULL) { 2643 query_disk.Valid = 0; 2644 query_disk.Locked = 0; 2645 query_disk.Deleted = 1; /* XXX is this right? */ 2646 } else { 2647 disk = device_get_softc(co->co_disk); 2648 query_disk.Valid = 1; 2649 query_disk.Locked = 2650 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2651 query_disk.Deleted = 0; 2652 query_disk.Bus = device_get_unit(sc->aac_dev); 2653 query_disk.Target = disk->unit; 2654 query_disk.Lun = 0; 2655 query_disk.UnMapped = 0; 2656 bcopy(disk->ad_dev_t->si_name, 2657 &query_disk.diskDeviceName[0], 10); 2658 } 2659 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2660 2661 error = copyout((caddr_t)&query_disk, uptr, 2662 sizeof(struct aac_query_disk)); 2663 2664 return (error); 2665} 2666 2667static void 2668aac_get_bus_info(struct aac_softc *sc) 2669{ 2670 struct aac_fib *fib; 2671 struct aac_ctcfg *c_cmd; 2672 struct aac_ctcfg_resp *c_resp; 2673 struct aac_vmioctl *vmi; 2674 struct aac_vmi_businf_resp *vmi_resp; 2675 struct aac_getbusinf businfo; 2676 struct aac_cam_inf *caminf; 2677 device_t child; 2678 int i, found, error; 2679 2680 aac_alloc_sync_fib(sc, &fib, 0); 2681 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2682 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2683 2684 c_cmd->Command = VM_ContainerConfig; 2685 c_cmd->cmd = CT_GET_SCSI_METHOD; 2686 c_cmd->param = 0; 2687 2688 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2689 sizeof(struct aac_ctcfg)); 2690 if (error) { 2691 device_printf(sc->aac_dev, "Error %d sending " 2692 "VM_ContainerConfig command\n", error); 2693 aac_release_sync_fib(sc); 2694 return; 2695 } 2696 2697 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2698 if (c_resp->Status != ST_OK) { 2699 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2700 c_resp->Status); 2701 aac_release_sync_fib(sc); 2702 return; 2703 } 2704 2705 sc->scsi_method_id = c_resp->param; 2706 2707 vmi = (struct aac_vmioctl *)&fib->data[0]; 2708 bzero(vmi, sizeof(struct aac_vmioctl)); 2709 2710 vmi->Command = VM_Ioctl; 2711 vmi->ObjType = FT_DRIVE; 2712 vmi->MethId = sc->scsi_method_id; 2713 vmi->ObjId = 0; 2714 vmi->IoctlCmd = GetBusInfo; 2715 2716 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2717 sizeof(struct aac_vmioctl)); 2718 if (error) { 2719 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2720 error); 2721 aac_release_sync_fib(sc); 2722 return; 2723 } 2724 2725 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2726 if (vmi_resp->Status != ST_OK) { 2727 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2728 vmi_resp->Status); 2729 aac_release_sync_fib(sc); 2730 return; 2731 } 2732 2733 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2734 aac_release_sync_fib(sc); 2735 2736 found = 0; 2737 for (i = 0; i < businfo.BusCount; i++) { 2738 if (businfo.BusValid[i] != AAC_BUS_VALID) 2739 continue; 2740 2741 MALLOC(caminf, struct aac_cam_inf *, 2742 sizeof(struct aac_cam_inf), M_AACBUF, M_NOWAIT | M_ZERO); 2743 if (caminf == NULL) 2744 continue; 2745 2746 child = device_add_child(sc->aac_dev, "aacp", -1); 2747 if (child == NULL) { 2748 device_printf(sc->aac_dev, "device_add_child failed\n"); 2749 continue; 2750 } 2751 2752 caminf->TargetsPerBus = businfo.TargetsPerBus; 2753 caminf->BusNumber = i; 2754 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2755 caminf->aac_sc = sc; 2756 2757 device_set_ivars(child, caminf); 2758 device_set_desc(child, "SCSI Passthrough Bus"); 2759 2760 found = 1; 2761 } 2762 2763 if (found) 2764 bus_generic_attach(sc->aac_dev); 2765 2766 return; 2767}
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