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