1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2001 Scott Long 4 * Copyright (c) 2000 BSDi 5 * Copyright (c) 2001 Adaptec, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 /* 34 * Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters. 35 */ 36 37 #include "opt_aac.h" 38 39 /* #include <stddef.h> */ 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/malloc.h> 43 #include <sys/kernel.h> 44 #include <sys/kthread.h> 45 #include <sys/sysctl.h> 46 #include <sys/poll.h> 47 #include <sys/ioccom.h> 48 49 #include <sys/bus.h> 50 #include <sys/conf.h> 51 #include <sys/signalvar.h> 52 #include <sys/time.h> 53 #include <sys/eventhandler.h> 54 55 #include <machine/bus_memio.h> 56 #include <machine/bus.h> 57 #include <machine/resource.h> 58 59 #include <dev/aac/aacreg.h> 60 #include <dev/aac/aac_ioctl.h> 61 #include <dev/aac/aacvar.h> 62 #include <dev/aac/aac_tables.h> 63 64 static void aac_startup(void *arg); 65 static void aac_add_container(struct aac_softc *sc, 66 struct aac_mntinforesp *mir, int f); 67 static void aac_get_bus_info(struct aac_softc *sc); 68 69 /* Command Processing */ 70 static void aac_timeout(struct aac_softc *sc); 71 static int aac_map_command(struct aac_command *cm); 72 static void aac_complete(void *context, int pending); 73 static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 74 static void aac_bio_complete(struct aac_command *cm); 75 static int aac_wait_command(struct aac_command *cm, int timeout); 76 static void aac_command_thread(struct aac_softc *sc); 77 78 /* Command Buffer Management */ 79 static void aac_map_command_sg(void *arg, bus_dma_segment_t *segs, 80 int nseg, int error); 81 static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 82 int nseg, int error); 83 static int aac_alloc_commands(struct aac_softc *sc); 84 static void aac_free_commands(struct aac_softc *sc); 85 static void aac_unmap_command(struct aac_command *cm); 86 87 /* Hardware Interface */ 88 static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 89 int error); 90 static int aac_check_firmware(struct aac_softc *sc); 91 static int aac_init(struct aac_softc *sc); 92 static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 93 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 94 u_int32_t arg3, u_int32_t *sp); 95 static int aac_enqueue_fib(struct aac_softc *sc, int queue, 96 struct aac_command *cm); 97 static int aac_dequeue_fib(struct aac_softc *sc, int queue, 98 u_int32_t *fib_size, struct aac_fib **fib_addr); 99 static int aac_enqueue_response(struct aac_softc *sc, int queue, 100 struct aac_fib *fib); 101 102 /* Falcon/PPC interface */ 103 static int aac_fa_get_fwstatus(struct aac_softc *sc); 104 static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 105 static int aac_fa_get_istatus(struct aac_softc *sc); 106 static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 107 static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 108 u_int32_t arg0, u_int32_t arg1, 109 u_int32_t arg2, u_int32_t arg3); 110 static int aac_fa_get_mailbox(struct aac_softc *sc, int mb); 111 static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 112 113 struct aac_interface aac_fa_interface = { 114 aac_fa_get_fwstatus, 115 aac_fa_qnotify, 116 aac_fa_get_istatus, 117 aac_fa_clear_istatus, 118 aac_fa_set_mailbox, 119 aac_fa_get_mailbox, 120 aac_fa_set_interrupts 121 }; 122 123 /* StrongARM interface */ 124 static int aac_sa_get_fwstatus(struct aac_softc *sc); 125 static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 126 static int aac_sa_get_istatus(struct aac_softc *sc); 127 static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 128 static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 129 u_int32_t arg0, u_int32_t arg1, 130 u_int32_t arg2, u_int32_t arg3); 131 static int aac_sa_get_mailbox(struct aac_softc *sc, int mb); 132 static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 133 134 struct aac_interface aac_sa_interface = { 135 aac_sa_get_fwstatus, 136 aac_sa_qnotify, 137 aac_sa_get_istatus, 138 aac_sa_clear_istatus, 139 aac_sa_set_mailbox, 140 aac_sa_get_mailbox, 141 aac_sa_set_interrupts 142 }; 143 144 /* i960Rx interface */ 145 static int aac_rx_get_fwstatus(struct aac_softc *sc); 146 static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 147 static int aac_rx_get_istatus(struct aac_softc *sc); 148 static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 149 static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 150 u_int32_t arg0, u_int32_t arg1, 151 u_int32_t arg2, u_int32_t arg3); 152 static int aac_rx_get_mailbox(struct aac_softc *sc, int mb); 153 static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 154 155 struct aac_interface aac_rx_interface = { 156 aac_rx_get_fwstatus, 157 aac_rx_qnotify, 158 aac_rx_get_istatus, 159 aac_rx_clear_istatus, 160 aac_rx_set_mailbox, 161 aac_rx_get_mailbox, 162 aac_rx_set_interrupts 163 }; 164 165 /* Debugging and Diagnostics */ 166 static void aac_describe_controller(struct aac_softc *sc); 167 static char *aac_describe_code(struct aac_code_lookup *table, 168 u_int32_t code); 169 170 /* Management Interface */ 171 static d_open_t aac_open; 172 static d_close_t aac_close; 173 static d_ioctl_t aac_ioctl; 174 static d_poll_t aac_poll; 175 static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 176 static void aac_handle_aif(struct aac_softc *sc, 177 struct aac_fib *fib); 178 static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 179 static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 180 static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 181 static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 182 183 static struct cdevsw aac_cdevsw = { 184 .d_open = aac_open, 185 .d_close = aac_close, 186 .d_ioctl = aac_ioctl, 187 .d_poll = aac_poll, 188 .d_name = "aac", 189 }; 190 191 MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 192 193 /* sysctl node */ 194 SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 195 196 /* 197 * Device Interface 198 */ 199 200 /* 201 * Initialise the controller and softc 202 */ 203 int 204 aac_attach(struct aac_softc *sc) 205 { 206 int error, unit; 207 208 debug_called(1); 209 210 /* 211 * Initialise per-controller queues. 212 */ 213 aac_initq_free(sc); 214 aac_initq_ready(sc); 215 aac_initq_busy(sc); 216 aac_initq_bio(sc); 217 218 /* 219 * Initialise command-completion task. 220 */ 221 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 222 223 /* disable interrupts before we enable anything */ 224 AAC_MASK_INTERRUPTS(sc); 225 226 /* mark controller as suspended until we get ourselves organised */ 227 sc->aac_state |= AAC_STATE_SUSPEND; 228 229 /* 230 * Check that the firmware on the card is supported. 231 */ 232 if ((error = aac_check_firmware(sc)) != 0) 233 return(error); 234 235 /* 236 * Initialize locks 237 */ 238 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 239 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 240 AAC_LOCK_INIT(&sc->aac_io_lock, "AAC I/O lock"); 241 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 242 TAILQ_INIT(&sc->aac_container_tqh); 243 244 /* Initialize the local AIF queue pointers */ 245 sc->aac_aifq_head = sc->aac_aifq_tail = AAC_AIFQ_LENGTH; 246 247 /* 248 * Initialise the adapter. 249 */ 250 if ((error = aac_init(sc)) != 0) 251 return(error); 252 253 /* 254 * Print a little information about the controller. 255 */ 256 aac_describe_controller(sc); 257 258 /* 259 * Register to probe our containers later. 260 */ 261 sc->aac_ich.ich_func = aac_startup; 262 sc->aac_ich.ich_arg = sc; 263 if (config_intrhook_establish(&sc->aac_ich) != 0) { 264 device_printf(sc->aac_dev, 265 "can't establish configuration hook\n"); 266 return(ENXIO); 267 } 268 269 /* 270 * Make the control device. 271 */ 272 unit = device_get_unit(sc->aac_dev); 273 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 274 0640, "aac%d", unit); 275 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 276 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 277 sc->aac_dev_t->si_drv1 = sc; 278 279 /* Create the AIF thread */ 280 if (kthread_create((void(*)(void *))aac_command_thread, sc, 281 &sc->aifthread, 0, 0, "aac%daif", unit)) 282 panic("Could not create AIF thread\n"); 283 284 /* Register the shutdown method to only be called post-dump */ 285 if ((sc->eh = EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, 286 sc->aac_dev, SHUTDOWN_PRI_DEFAULT)) == NULL) 287 device_printf(sc->aac_dev, 288 "shutdown event registration failed\n"); 289 290 /* Register with CAM for the non-DASD devices */ 291 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0) { 292 TAILQ_INIT(&sc->aac_sim_tqh); 293 aac_get_bus_info(sc); 294 } 295 296 return(0); 297 } 298 299 /* 300 * Probe for containers, create disks. 301 */ 302 static void 303 aac_startup(void *arg) 304 { 305 struct aac_softc *sc; 306 struct aac_fib *fib; 307 struct aac_mntinfo *mi; 308 struct aac_mntinforesp *mir = NULL; 309 int count = 0, i = 0; 310 311 debug_called(1); 312 313 sc = (struct aac_softc *)arg; 314 315 /* disconnect ourselves from the intrhook chain */ 316 config_intrhook_disestablish(&sc->aac_ich); 317 318 aac_alloc_sync_fib(sc, &fib, 0); 319 mi = (struct aac_mntinfo *)&fib->data[0]; 320 321 /* loop over possible containers */ 322 do { 323 /* request information on this container */ 324 bzero(mi, sizeof(struct aac_mntinfo)); 325 mi->Command = VM_NameServe; 326 mi->MntType = FT_FILESYS; 327 mi->MntCount = i; 328 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 329 sizeof(struct aac_mntinfo))) { 330 printf("error probing container %d", i); 331 continue; 332 } 333 334 mir = (struct aac_mntinforesp *)&fib->data[0]; 335 /* XXX Need to check if count changed */ 336 count = mir->MntRespCount; 337 aac_add_container(sc, mir, 0); 338 i++; 339 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 340 341 aac_release_sync_fib(sc); 342 343 /* poke the bus to actually attach the child devices */ 344 if (bus_generic_attach(sc->aac_dev)) 345 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 346 347 /* mark the controller up */ 348 sc->aac_state &= ~AAC_STATE_SUSPEND; 349 350 /* enable interrupts now */ 351 AAC_UNMASK_INTERRUPTS(sc); 352 } 353 354 /* 355 * Create a device to respresent a new container 356 */ 357 static void 358 aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 359 { 360 struct aac_container *co; 361 device_t child; 362 363 /* 364 * Check container volume type for validity. Note that many of 365 * the possible types may never show up. 366 */ 367 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 368 co = (struct aac_container *)malloc(sizeof *co, M_AACBUF, 369 M_NOWAIT | M_ZERO); 370 if (co == NULL) 371 panic("Out of memory?!\n"); 372 debug(1, "id %x name '%.16s' size %u type %d", 373 mir->MntTable[0].ObjectId, 374 mir->MntTable[0].FileSystemName, 375 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 376 377 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 378 device_printf(sc->aac_dev, "device_add_child failed\n"); 379 else 380 device_set_ivars(child, co); 381 device_set_desc(child, aac_describe_code(aac_container_types, 382 mir->MntTable[0].VolType)); 383 co->co_disk = child; 384 co->co_found = f; 385 bcopy(&mir->MntTable[0], &co->co_mntobj, 386 sizeof(struct aac_mntobj)); 387 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 388 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 389 AAC_LOCK_RELEASE(&sc->aac_container_lock); 390 } 391 } 392 393 /* 394 * Free all of the resources associated with (sc) 395 * 396 * Should not be called if the controller is active. 397 */ 398 void 399 aac_free(struct aac_softc *sc) 400 { 401 402 debug_called(1); 403 404 /* remove the control device */ 405 if (sc->aac_dev_t != NULL) 406 destroy_dev(sc->aac_dev_t); 407 408 /* throw away any FIB buffers, discard the FIB DMA tag */ 409 aac_free_commands(sc); 410 if (sc->aac_fib_dmat) 411 bus_dma_tag_destroy(sc->aac_fib_dmat); 412 413 free(sc->aac_commands, M_AACBUF); 414 415 /* destroy the common area */ 416 if (sc->aac_common) { 417 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 418 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 419 sc->aac_common_dmamap); 420 } 421 if (sc->aac_common_dmat) 422 bus_dma_tag_destroy(sc->aac_common_dmat); 423 424 /* disconnect the interrupt handler */ 425 if (sc->aac_intr) 426 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 427 if (sc->aac_irq != NULL) 428 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 429 sc->aac_irq); 430 431 /* destroy data-transfer DMA tag */ 432 if (sc->aac_buffer_dmat) 433 bus_dma_tag_destroy(sc->aac_buffer_dmat); 434 435 /* destroy the parent DMA tag */ 436 if (sc->aac_parent_dmat) 437 bus_dma_tag_destroy(sc->aac_parent_dmat); 438 439 /* release the register window mapping */ 440 if (sc->aac_regs_resource != NULL) 441 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 442 sc->aac_regs_rid, sc->aac_regs_resource); 443 } 444 445 /* 446 * Disconnect from the controller completely, in preparation for unload. 447 */ 448 int 449 aac_detach(device_t dev) 450 { 451 struct aac_softc *sc; 452 struct aac_container *co; 453 struct aac_sim *sim; 454 int error; 455 456 debug_called(1); 457 458 sc = device_get_softc(dev); 459 460 if (sc->aac_state & AAC_STATE_OPEN) 461 return(EBUSY); 462 463 /* Remove the child containers */ 464 while ((co = TAILQ_FIRST(&sc->aac_container_tqh)) != NULL) { 465 error = device_delete_child(dev, co->co_disk); 466 if (error) 467 return (error); 468 TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link); 469 free(co, M_AACBUF); 470 } 471 472 /* Remove the CAM SIMs */ 473 while ((sim = TAILQ_FIRST(&sc->aac_sim_tqh)) != NULL) { 474 TAILQ_REMOVE(&sc->aac_sim_tqh, sim, sim_link); 475 error = device_delete_child(dev, sim->sim_dev); 476 if (error) 477 return (error); 478 free(sim, M_AACBUF); 479 } 480 481 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 482 sc->aifflags |= AAC_AIFFLAGS_EXIT; 483 wakeup(sc->aifthread); 484 tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 485 } 486 487 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 488 panic("Cannot shutdown AIF thread\n"); 489 490 if ((error = aac_shutdown(dev))) 491 return(error); 492 493 EVENTHANDLER_DEREGISTER(shutdown_final, sc->eh); 494 495 aac_free(sc); 496 497 return(0); 498 } 499 500 /* 501 * Bring the controller down to a dormant state and detach all child devices. 502 * 503 * This function is called before detach or system shutdown. 504 * 505 * Note that we can assume that the bioq on the controller is empty, as we won't 506 * allow shutdown if any device is open. 507 */ 508 int 509 aac_shutdown(device_t dev) 510 { 511 struct aac_softc *sc; 512 struct aac_fib *fib; 513 struct aac_close_command *cc; 514 515 debug_called(1); 516 517 sc = device_get_softc(dev); 518 519 sc->aac_state |= AAC_STATE_SUSPEND; 520 521 /* 522 * Send a Container shutdown followed by a HostShutdown FIB to the 523 * controller to convince it that we don't want to talk to it anymore. 524 * We've been closed and all I/O completed already 525 */ 526 device_printf(sc->aac_dev, "shutting down controller..."); 527 528 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 529 cc = (struct aac_close_command *)&fib->data[0]; 530 531 bzero(cc, sizeof(struct aac_close_command)); 532 cc->Command = VM_CloseAll; 533 cc->ContainerId = 0xffffffff; 534 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 535 sizeof(struct aac_close_command))) 536 printf("FAILED.\n"); 537 else 538 printf("done\n"); 539 #if 0 540 else { 541 fib->data[0] = 0; 542 /* 543 * XXX Issuing this command to the controller makes it shut down 544 * but also keeps it from coming back up without a reset of the 545 * PCI bus. This is not desirable if you are just unloading the 546 * driver module with the intent to reload it later. 547 */ 548 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 549 fib, 1)) { 550 printf("FAILED.\n"); 551 } else { 552 printf("done.\n"); 553 } 554 } 555 #endif 556 557 AAC_MASK_INTERRUPTS(sc); 558 559 return(0); 560 } 561 562 /* 563 * Bring the controller to a quiescent state, ready for system suspend. 564 */ 565 int 566 aac_suspend(device_t dev) 567 { 568 struct aac_softc *sc; 569 570 debug_called(1); 571 572 sc = device_get_softc(dev); 573 574 sc->aac_state |= AAC_STATE_SUSPEND; 575 576 AAC_MASK_INTERRUPTS(sc); 577 return(0); 578 } 579 580 /* 581 * Bring the controller back to a state ready for operation. 582 */ 583 int 584 aac_resume(device_t dev) 585 { 586 struct aac_softc *sc; 587 588 debug_called(1); 589 590 sc = device_get_softc(dev); 591 592 sc->aac_state &= ~AAC_STATE_SUSPEND; 593 AAC_UNMASK_INTERRUPTS(sc); 594 return(0); 595 } 596 597 /* 598 * Take an interrupt. 599 */ 600 void 601 aac_intr(void *arg) 602 { 603 struct aac_softc *sc; 604 u_int32_t *resp_queue; 605 u_int16_t reason; 606 607 debug_called(2); 608 609 sc = (struct aac_softc *)arg; 610 611 /* 612 * Optimize the common case of adapter response interrupts. 613 * We must read from the card prior to processing the responses 614 * to ensure the clear is flushed prior to accessing the queues. 615 * Reading the queues from local memory might save us a PCI read. 616 */ 617 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 618 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 619 reason = AAC_DB_RESPONSE_READY; 620 else 621 reason = AAC_GET_ISTATUS(sc); 622 AAC_CLEAR_ISTATUS(sc, reason); 623 (void)AAC_GET_ISTATUS(sc); 624 625 /* It's not ok to return here because of races with the previous step */ 626 if (reason & AAC_DB_RESPONSE_READY) 627 /* handle completion processing */ 628 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 629 630 /* controller wants to talk to the log */ 631 if (reason & AAC_DB_PRINTF) { 632 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 633 sc->aifflags |= AAC_AIFFLAGS_PRINTF; 634 } else 635 aac_print_printf(sc); 636 } 637 638 /* controller has a message for us? */ 639 if (reason & AAC_DB_COMMAND_READY) { 640 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 641 sc->aifflags |= AAC_AIFFLAGS_AIF; 642 } else { 643 /* 644 * XXX If the kthread is dead and we're at this point, 645 * there are bigger problems than just figuring out 646 * what to do with an AIF. 647 */ 648 } 649 650 } 651 652 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) != 0) 653 /* XXX Should this be done with cv_signal? */ 654 wakeup(sc->aifthread); 655 } 656 657 /* 658 * Command Processing 659 */ 660 661 /* 662 * Start as much queued I/O as possible on the controller 663 */ 664 void 665 aac_startio(struct aac_softc *sc) 666 { 667 struct aac_command *cm; 668 669 debug_called(2); 670 671 if (sc->flags & AAC_QUEUE_FRZN) 672 return; 673 674 for (;;) { 675 /* 676 * Try to get a command that's been put off for lack of 677 * resources 678 */ 679 cm = aac_dequeue_ready(sc); 680 681 /* 682 * Try to build a command off the bio queue (ignore error 683 * return) 684 */ 685 if (cm == NULL) 686 aac_bio_command(sc, &cm); 687 688 /* nothing to do? */ 689 if (cm == NULL) 690 break; 691 692 /* try to give the command to the controller */ 693 if (aac_map_command(cm) == EBUSY) { 694 /* put it on the ready queue for later */ 695 aac_requeue_ready(cm); 696 break; 697 } 698 } 699 } 700 701 /* 702 * Deliver a command to the controller; allocate controller resources at the 703 * last moment when possible. 704 */ 705 static int 706 aac_map_command(struct aac_command *cm) 707 { 708 struct aac_softc *sc; 709 int error; 710 711 debug_called(2); 712 713 sc = cm->cm_sc; 714 error = 0; 715 716 /* don't map more than once */ 717 if (cm->cm_flags & AAC_CMD_MAPPED) 718 return (0); 719 720 if (cm->cm_datalen != 0) { 721 error = bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 722 cm->cm_data, cm->cm_datalen, 723 aac_map_command_sg, cm, 0); 724 if (error == EINPROGRESS) { 725 debug(1, "freezing queue\n"); 726 sc->flags |= AAC_QUEUE_FRZN; 727 error = 0; 728 } 729 } else { 730 aac_map_command_sg(cm, NULL, 0, 0); 731 } 732 return (error); 733 } 734 735 /* 736 * Handle notification of one or more FIBs coming from the controller. 737 */ 738 static void 739 aac_command_thread(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) == 0) 751 tsleep(sc->aifthread, PRIBIO, "aifthd", 752 AAC_PERIODIC_INTERVAL * hz); 753 754 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 755 aac_timeout(sc); 756 757 /* Check the hardware printf message buffer */ 758 if ((sc->aifflags & AAC_AIFFLAGS_PRINTF) != 0) { 759 sc->aifflags &= ~AAC_AIFFLAGS_PRINTF; 760 aac_print_printf(sc); 761 } 762 763 /* See if any FIBs need to be allocated */ 764 if ((sc->aifflags & AAC_AIFFLAGS_ALLOCFIBS) != 0) { 765 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 766 aac_alloc_commands(sc); 767 sc->aifflags &= ~AAC_AIFFLAGS_ALLOCFIBS; 768 AAC_LOCK_RELEASE(&sc->aac_io_lock); 769 } 770 771 /* While we're here, check to see if any commands are stuck */ 772 while (sc->aifflags & AAC_AIFFLAGS_AIF) { 773 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 774 &fib_size, &fib)) { 775 sc->aifflags &= ~AAC_AIFFLAGS_AIF; 776 break; /* nothing to do */ 777 } 778 779 AAC_PRINT_FIB(sc, fib); 780 781 switch (fib->Header.Command) { 782 case AifRequest: 783 aac_handle_aif(sc, fib); 784 break; 785 default: 786 device_printf(sc->aac_dev, "unknown command " 787 "from controller\n"); 788 break; 789 } 790 791 if ((fib->Header.XferState == 0) || 792 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 793 break; 794 795 /* Return the AIF to the controller. */ 796 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 797 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 798 *(AAC_FSAStatus*)fib->data = ST_OK; 799 800 /* XXX Compute the Size field? */ 801 size = fib->Header.Size; 802 if (size > sizeof(struct aac_fib)) { 803 size = sizeof(struct aac_fib); 804 fib->Header.Size = size; 805 } 806 /* 807 * Since we did not generate this command, it 808 * cannot go through the normal 809 * enqueue->startio chain. 810 */ 811 aac_enqueue_response(sc, 812 AAC_ADAP_NORM_RESP_QUEUE, 813 fib); 814 } 815 } 816 } 817 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 818 wakeup(sc->aac_dev); 819 820 mtx_lock(&Giant); 821 kthread_exit(0); 822 } 823 824 /* 825 * Process completed commands. 826 */ 827 static void 828 aac_complete(void *context, int pending) 829 { 830 struct aac_softc *sc; 831 struct aac_command *cm; 832 struct aac_fib *fib; 833 u_int32_t fib_size; 834 835 debug_called(2); 836 837 sc = (struct aac_softc *)context; 838 839 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 840 841 /* pull completed commands off the queue */ 842 for (;;) { 843 /* look for completed FIBs on our queue */ 844 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 845 &fib)) 846 break; /* nothing to do */ 847 848 /* get the command, unmap and queue for later processing */ 849 cm = sc->aac_commands + fib->Header.SenderData; 850 if (cm == NULL) { 851 AAC_PRINT_FIB(sc, fib); 852 break; 853 } 854 855 aac_remove_busy(cm); 856 aac_unmap_command(cm); /* XXX defer? */ 857 cm->cm_flags |= AAC_CMD_COMPLETED; 858 859 /* is there a completion handler? */ 860 if (cm->cm_complete != NULL) { 861 cm->cm_complete(cm); 862 } else { 863 /* assume that someone is sleeping on this command */ 864 wakeup(cm); 865 } 866 } 867 868 /* see if we can start some more I/O */ 869 sc->flags &= ~AAC_QUEUE_FRZN; 870 aac_startio(sc); 871 872 AAC_LOCK_RELEASE(&sc->aac_io_lock); 873 } 874 875 /* 876 * Handle a bio submitted from a disk device. 877 */ 878 void 879 aac_submit_bio(struct bio *bp) 880 { 881 struct aac_disk *ad; 882 struct aac_softc *sc; 883 884 debug_called(2); 885 886 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 887 sc = ad->ad_controller; 888 889 /* queue the BIO and try to get some work done */ 890 aac_enqueue_bio(sc, bp); 891 aac_startio(sc); 892 } 893 894 /* 895 * Get a bio and build a command to go with it. 896 */ 897 static int 898 aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 899 { 900 struct aac_command *cm; 901 struct aac_fib *fib; 902 struct aac_disk *ad; 903 struct bio *bp; 904 905 debug_called(2); 906 907 /* get the resources we will need */ 908 cm = NULL; 909 if ((bp = aac_dequeue_bio(sc)) == NULL) 910 goto fail; 911 if (aac_alloc_command(sc, &cm)) /* get a command */ 912 goto fail; 913 914 /* fill out the command */ 915 cm->cm_data = (void *)bp->bio_data; 916 cm->cm_datalen = bp->bio_bcount; 917 cm->cm_complete = aac_bio_complete; 918 cm->cm_private = bp; 919 cm->cm_timestamp = time_second; 920 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 921 922 /* build the FIB */ 923 fib = cm->cm_fib; 924 fib->Header.Size = sizeof(struct aac_fib_header); 925 fib->Header.XferState = 926 AAC_FIBSTATE_HOSTOWNED | 927 AAC_FIBSTATE_INITIALISED | 928 AAC_FIBSTATE_EMPTY | 929 AAC_FIBSTATE_FROMHOST | 930 AAC_FIBSTATE_REXPECTED | 931 AAC_FIBSTATE_NORM | 932 AAC_FIBSTATE_ASYNC | 933 AAC_FIBSTATE_FAST_RESPONSE; 934 935 /* build the read/write request */ 936 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 937 938 if ((sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 939 fib->Header.Command = ContainerCommand; 940 if (bp->bio_cmd == BIO_READ) { 941 struct aac_blockread *br; 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 struct aac_blockwrite *bw; 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; 958 fib->Header.Size += sizeof(struct aac_blockwrite); 959 cm->cm_flags |= AAC_CMD_DATAOUT; 960 cm->cm_sgtable = &bw->SgMap; 961 } 962 } else { 963 fib->Header.Command = ContainerCommand64; 964 if (bp->bio_cmd == BIO_READ) { 965 struct aac_blockread64 *br; 966 br = (struct aac_blockread64 *)&fib->data[0]; 967 br->Command = VM_CtHostRead64; 968 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 969 br->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 970 br->BlockNumber = bp->bio_pblkno; 971 br->Pad = 0; 972 br->Flags = 0; 973 fib->Header.Size += sizeof(struct aac_blockread64); 974 cm->cm_flags |= AAC_CMD_DATAOUT; 975 (struct aac_sg_table64 *)cm->cm_sgtable = &br->SgMap64; 976 } else { 977 struct aac_blockwrite64 *bw; 978 bw = (struct aac_blockwrite64 *)&fib->data[0]; 979 bw->Command = VM_CtHostWrite64; 980 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 981 bw->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 982 bw->BlockNumber = bp->bio_pblkno; 983 bw->Pad = 0; 984 bw->Flags = 0; 985 fib->Header.Size += sizeof(struct aac_blockwrite64); 986 cm->cm_flags |= AAC_CMD_DATAIN; 987 (struct aac_sg_table64 *)cm->cm_sgtable = &bw->SgMap64; 988 } 989 } 990 991 *cmp = cm; 992 return(0); 993 994 fail: 995 if (bp != NULL) 996 aac_enqueue_bio(sc, bp); 997 if (cm != NULL) 998 aac_release_command(cm); 999 return(ENOMEM); 1000 } 1001 1002 /* 1003 * Handle a bio-instigated command that has been completed. 1004 */ 1005 static void 1006 aac_bio_complete(struct aac_command *cm) 1007 { 1008 struct aac_blockread_response *brr; 1009 struct aac_blockwrite_response *bwr; 1010 struct bio *bp; 1011 AAC_FSAStatus status; 1012 1013 /* fetch relevant status and then release the command */ 1014 bp = (struct bio *)cm->cm_private; 1015 if (bp->bio_cmd == BIO_READ) { 1016 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 1017 status = brr->Status; 1018 } else { 1019 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 1020 status = bwr->Status; 1021 } 1022 aac_release_command(cm); 1023 1024 /* fix up the bio based on status */ 1025 if (status == ST_OK) { 1026 bp->bio_resid = 0; 1027 } else { 1028 bp->bio_error = EIO; 1029 bp->bio_flags |= BIO_ERROR; 1030 /* pass an error string out to the disk layer */ 1031 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1032 status); 1033 } 1034 aac_biodone(bp); 1035 } 1036 1037 /* 1038 * Submit a command to the controller, return when it completes. 1039 * XXX This is very dangerous! If the card has gone out to lunch, we could 1040 * be stuck here forever. At the same time, signals are not caught 1041 * because there is a risk that a signal could wakeup the tsleep before 1042 * the card has a chance to complete the command. The passed in timeout 1043 * is ignored for the same reason. Since there is no way to cancel a 1044 * command in progress, we should probably create a 'dead' queue where 1045 * commands go that have been interrupted/timed-out/etc, that keeps them 1046 * out of the free pool. That way, if the card is just slow, it won't 1047 * spam the memory of a command that has been recycled. 1048 */ 1049 static int 1050 aac_wait_command(struct aac_command *cm, int timeout) 1051 { 1052 struct aac_softc *sc; 1053 int error = 0; 1054 1055 debug_called(2); 1056 1057 sc = cm->cm_sc; 1058 1059 /* Put the command on the ready queue and get things going */ 1060 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1061 aac_enqueue_ready(cm); 1062 aac_startio(sc); 1063 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1064 error = msleep(cm, &sc->aac_io_lock, PRIBIO, "aacwait", 0); 1065 } 1066 return(error); 1067 } 1068 1069 /* 1070 *Command Buffer Management 1071 */ 1072 1073 /* 1074 * Allocate a command. 1075 */ 1076 int 1077 aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1078 { 1079 struct aac_command *cm; 1080 1081 debug_called(3); 1082 1083 if ((cm = aac_dequeue_free(sc)) == NULL) { 1084 if (sc->total_fibs < sc->aac_max_fibs) { 1085 sc->aifflags |= AAC_AIFFLAGS_ALLOCFIBS; 1086 wakeup(sc->aifthread); 1087 } 1088 return (EBUSY); 1089 } 1090 1091 *cmp = cm; 1092 return(0); 1093 } 1094 1095 /* 1096 * Release a command back to the freelist. 1097 */ 1098 void 1099 aac_release_command(struct aac_command *cm) 1100 { 1101 debug_called(3); 1102 1103 /* (re)initialise the command/FIB */ 1104 cm->cm_sgtable = NULL; 1105 cm->cm_flags = 0; 1106 cm->cm_complete = NULL; 1107 cm->cm_private = NULL; 1108 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1109 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1110 cm->cm_fib->Header.Flags = 0; 1111 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1112 1113 /* 1114 * These are duplicated in aac_start to cover the case where an 1115 * intermediate stage may have destroyed them. They're left 1116 * initialised here for debugging purposes only. 1117 */ 1118 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1119 cm->cm_fib->Header.SenderData = 0; 1120 1121 aac_enqueue_free(cm); 1122 } 1123 1124 /* 1125 * Map helper for command/FIB allocation. 1126 */ 1127 static void 1128 aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1129 { 1130 uint32_t *fibphys; 1131 1132 fibphys = (uint32_t *)arg; 1133 1134 debug_called(3); 1135 1136 *fibphys = segs[0].ds_addr; 1137 } 1138 1139 /* 1140 * Allocate and initialise commands/FIBs for this adapter. 1141 */ 1142 static int 1143 aac_alloc_commands(struct aac_softc *sc) 1144 { 1145 struct aac_command *cm; 1146 struct aac_fibmap *fm; 1147 uint32_t fibphys; 1148 int i, error; 1149 1150 debug_called(2); 1151 1152 if (sc->total_fibs + AAC_FIB_COUNT > sc->aac_max_fibs) 1153 return (ENOMEM); 1154 1155 fm = malloc(sizeof(struct aac_fibmap), M_AACBUF, M_NOWAIT|M_ZERO); 1156 if (fm == NULL) 1157 return (ENOMEM); 1158 1159 /* allocate the FIBs in DMAable memory and load them */ 1160 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs, 1161 BUS_DMA_NOWAIT, &fm->aac_fibmap)) { 1162 device_printf(sc->aac_dev, 1163 "Not enough contiguous memory available.\n"); 1164 free(fm, M_AACBUF); 1165 return (ENOMEM); 1166 } 1167 1168 /* Ignore errors since this doesn't bounce */ 1169 (void)bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs, 1170 AAC_FIB_COUNT * sizeof(struct aac_fib), 1171 aac_map_command_helper, &fibphys, 0); 1172 1173 /* initialise constant fields in the command structure */ 1174 bzero(fm->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1175 for (i = 0; i < AAC_FIB_COUNT; i++) { 1176 cm = sc->aac_commands + sc->total_fibs; 1177 fm->aac_commands = cm; 1178 cm->cm_sc = sc; 1179 cm->cm_fib = fm->aac_fibs + i; 1180 cm->cm_fibphys = fibphys + (i * sizeof(struct aac_fib)); 1181 cm->cm_index = sc->total_fibs; 1182 1183 if ((error = bus_dmamap_create(sc->aac_buffer_dmat, 0, 1184 &cm->cm_datamap)) == 0) 1185 aac_release_command(cm); 1186 else 1187 break; 1188 sc->total_fibs++; 1189 } 1190 1191 if (i > 0) { 1192 TAILQ_INSERT_TAIL(&sc->aac_fibmap_tqh, fm, fm_link); 1193 debug(1, "total_fibs= %d\n", sc->total_fibs); 1194 return (0); 1195 } 1196 1197 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1198 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1199 free(fm, M_AACBUF); 1200 return (ENOMEM); 1201 } 1202 1203 /* 1204 * Free FIBs owned by this adapter. 1205 */ 1206 static void 1207 aac_free_commands(struct aac_softc *sc) 1208 { 1209 struct aac_fibmap *fm; 1210 struct aac_command *cm; 1211 int i; 1212 1213 debug_called(1); 1214 1215 while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) { 1216 1217 TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link); 1218 /* 1219 * We check against total_fibs to handle partially 1220 * allocated blocks. 1221 */ 1222 for (i = 0; i < AAC_FIB_COUNT && sc->total_fibs--; i++) { 1223 cm = fm->aac_commands + i; 1224 bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap); 1225 } 1226 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1227 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1228 free(fm, M_AACBUF); 1229 } 1230 } 1231 1232 /* 1233 * Command-mapping helper function - populate this command's s/g table. 1234 */ 1235 static void 1236 aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1237 { 1238 struct aac_softc *sc; 1239 struct aac_command *cm; 1240 struct aac_fib *fib; 1241 int i; 1242 1243 debug_called(3); 1244 1245 cm = (struct aac_command *)arg; 1246 sc = cm->cm_sc; 1247 fib = cm->cm_fib; 1248 1249 /* copy into the FIB */ 1250 if (cm->cm_sgtable != NULL) { 1251 if ((cm->cm_sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 1252 struct aac_sg_table *sg; 1253 sg = cm->cm_sgtable; 1254 sg->SgCount = nseg; 1255 for (i = 0; i < nseg; i++) { 1256 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1257 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1258 } 1259 /* update the FIB size for the s/g count */ 1260 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1261 } else { 1262 struct aac_sg_table64 *sg; 1263 sg = (struct aac_sg_table64 *)cm->cm_sgtable; 1264 sg->SgCount = nseg; 1265 for (i = 0; i < nseg; i++) { 1266 sg->SgEntry64[i].SgAddress = segs[i].ds_addr; 1267 sg->SgEntry64[i].SgByteCount = segs[i].ds_len; 1268 } 1269 /* update the FIB size for the s/g count */ 1270 fib->Header.Size += nseg*sizeof(struct aac_sg_entry64); 1271 } 1272 } 1273 1274 /* Fix up the address values in the FIB. Use the command array index 1275 * instead of a pointer since these fields are only 32 bits. Shift 1276 * the SenderFibAddress over to make room for the fast response bit. 1277 */ 1278 cm->cm_fib->Header.SenderFibAddress = (cm->cm_index << 1); 1279 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 1280 1281 /* save a pointer to the command for speedy reverse-lookup */ 1282 cm->cm_fib->Header.SenderData = cm->cm_index; 1283 1284 if (cm->cm_flags & AAC_CMD_DATAIN) 1285 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1286 BUS_DMASYNC_PREREAD); 1287 if (cm->cm_flags & AAC_CMD_DATAOUT) 1288 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1289 BUS_DMASYNC_PREWRITE); 1290 cm->cm_flags |= AAC_CMD_MAPPED; 1291 1292 /* put the FIB on the outbound queue */ 1293 if (aac_enqueue_fib(sc, cm->cm_queue, cm) == EBUSY) 1294 aac_requeue_ready(cm); 1295 1296 return; 1297 } 1298 1299 /* 1300 * Unmap a command from controller-visible space. 1301 */ 1302 static void 1303 aac_unmap_command(struct aac_command *cm) 1304 { 1305 struct aac_softc *sc; 1306 1307 debug_called(2); 1308 1309 sc = cm->cm_sc; 1310 1311 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1312 return; 1313 1314 if (cm->cm_datalen != 0) { 1315 if (cm->cm_flags & AAC_CMD_DATAIN) 1316 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1317 BUS_DMASYNC_POSTREAD); 1318 if (cm->cm_flags & AAC_CMD_DATAOUT) 1319 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1320 BUS_DMASYNC_POSTWRITE); 1321 1322 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1323 } 1324 cm->cm_flags &= ~AAC_CMD_MAPPED; 1325 } 1326 1327 /* 1328 * Hardware Interface 1329 */ 1330 1331 /* 1332 * Initialise the adapter. 1333 */ 1334 static void 1335 aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1336 { 1337 struct aac_softc *sc; 1338 1339 debug_called(1); 1340 1341 sc = (struct aac_softc *)arg; 1342 1343 sc->aac_common_busaddr = segs[0].ds_addr; 1344 } 1345 1346 static int 1347 aac_check_firmware(struct aac_softc *sc) 1348 { 1349 u_int32_t major, minor, options; 1350 1351 debug_called(1); 1352 1353 /* 1354 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1355 * firmware version 1.x are not compatible with this driver. 1356 */ 1357 if (sc->flags & AAC_FLAGS_PERC2QC) { 1358 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1359 NULL)) { 1360 device_printf(sc->aac_dev, 1361 "Error reading firmware version\n"); 1362 return (EIO); 1363 } 1364 1365 /* These numbers are stored as ASCII! */ 1366 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30; 1367 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30; 1368 if (major == 1) { 1369 device_printf(sc->aac_dev, 1370 "Firmware version %d.%d is not supported.\n", 1371 major, minor); 1372 return (EINVAL); 1373 } 1374 } 1375 1376 /* 1377 * Retrieve the capabilities/supported options word so we know what 1378 * work-arounds to enable. 1379 */ 1380 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) { 1381 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 1382 return (EIO); 1383 } 1384 options = AAC_GET_MAILBOX(sc, 1); 1385 sc->supported_options = options; 1386 1387 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 && 1388 (sc->flags & AAC_FLAGS_NO4GB) == 0) 1389 sc->flags |= AAC_FLAGS_4GB_WINDOW; 1390 if (options & AAC_SUPPORTED_NONDASD) 1391 sc->flags |= AAC_FLAGS_ENABLE_CAM; 1392 if ((options & AAC_SUPPORTED_SGMAP_HOST64) != 0 1393 && (sizeof(bus_addr_t) > 4)) { 1394 device_printf(sc->aac_dev, "Enabling 64-bit address support\n"); 1395 sc->flags |= AAC_FLAGS_SG_64BIT; 1396 } 1397 1398 /* Check for broken hardware that does a lower number of commands */ 1399 if ((sc->flags & AAC_FLAGS_256FIBS) == 0) 1400 sc->aac_max_fibs = AAC_MAX_FIBS; 1401 else 1402 sc->aac_max_fibs = 256; 1403 1404 return (0); 1405 } 1406 1407 static int 1408 aac_init(struct aac_softc *sc) 1409 { 1410 struct aac_adapter_init *ip; 1411 time_t then; 1412 u_int32_t code, qoffset; 1413 int error; 1414 1415 debug_called(1); 1416 1417 /* 1418 * First wait for the adapter to come ready. 1419 */ 1420 then = time_second; 1421 do { 1422 code = AAC_GET_FWSTATUS(sc); 1423 if (code & AAC_SELF_TEST_FAILED) { 1424 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1425 return(ENXIO); 1426 } 1427 if (code & AAC_KERNEL_PANIC) { 1428 device_printf(sc->aac_dev, 1429 "FATAL: controller kernel panic\n"); 1430 return(ENXIO); 1431 } 1432 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1433 device_printf(sc->aac_dev, 1434 "FATAL: controller not coming ready, " 1435 "status %x\n", code); 1436 return(ENXIO); 1437 } 1438 } while (!(code & AAC_UP_AND_RUNNING)); 1439 1440 error = ENOMEM; 1441 /* 1442 * Create DMA tag for mapping buffers into controller-addressable space. 1443 */ 1444 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1445 1, 0, /* algnmnt, boundary */ 1446 (sc->flags & AAC_FLAGS_SG_64BIT) ? 1447 BUS_SPACE_MAXADDR : 1448 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1449 BUS_SPACE_MAXADDR, /* highaddr */ 1450 NULL, NULL, /* filter, filterarg */ 1451 MAXBSIZE, /* maxsize */ 1452 AAC_MAXSGENTRIES, /* nsegments */ 1453 MAXBSIZE, /* maxsegsize */ 1454 BUS_DMA_ALLOCNOW, /* flags */ 1455 busdma_lock_mutex, /* lockfunc */ 1456 &sc->aac_io_lock, /* lockfuncarg */ 1457 &sc->aac_buffer_dmat)) { 1458 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 1459 goto out; 1460 } 1461 1462 /* 1463 * Create DMA tag for mapping FIBs into controller-addressable space.. 1464 */ 1465 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1466 1, 0, /* algnmnt, boundary */ 1467 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1468 BUS_SPACE_MAXADDR_32BIT : 1469 0x7fffffff, /* lowaddr */ 1470 BUS_SPACE_MAXADDR, /* highaddr */ 1471 NULL, NULL, /* filter, filterarg */ 1472 AAC_FIB_COUNT * 1473 sizeof(struct aac_fib), /* maxsize */ 1474 1, /* nsegments */ 1475 AAC_FIB_COUNT * 1476 sizeof(struct aac_fib), /* maxsegsize */ 1477 BUS_DMA_ALLOCNOW, /* flags */ 1478 NULL, NULL, /* No locking needed */ 1479 &sc->aac_fib_dmat)) { 1480 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");; 1481 goto out; 1482 } 1483 1484 /* 1485 * Create DMA tag for the common structure and allocate it. 1486 */ 1487 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1488 1, 0, /* algnmnt, boundary */ 1489 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1490 BUS_SPACE_MAXADDR_32BIT : 1491 0x7fffffff, /* lowaddr */ 1492 BUS_SPACE_MAXADDR, /* highaddr */ 1493 NULL, NULL, /* filter, filterarg */ 1494 8192 + sizeof(struct aac_common), /* maxsize */ 1495 1, /* nsegments */ 1496 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1497 BUS_DMA_ALLOCNOW, /* flags */ 1498 NULL, NULL, /* No locking needed */ 1499 &sc->aac_common_dmat)) { 1500 device_printf(sc->aac_dev, 1501 "can't allocate common structure DMA tag\n"); 1502 goto out; 1503 } 1504 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1505 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1506 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1507 goto out; 1508 } 1509 1510 /* 1511 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1512 * below address 8192 in physical memory. 1513 * XXX If the padding is not needed, can it be put to use instead 1514 * of ignored? 1515 */ 1516 (void)bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1517 sc->aac_common, 8192 + sizeof(*sc->aac_common), 1518 aac_common_map, sc, 0); 1519 1520 if (sc->aac_common_busaddr < 8192) { 1521 (uint8_t *)sc->aac_common += 8192; 1522 sc->aac_common_busaddr += 8192; 1523 } 1524 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1525 1526 /* Allocate some FIBs and associated command structs */ 1527 TAILQ_INIT(&sc->aac_fibmap_tqh); 1528 sc->aac_commands = malloc(AAC_MAX_FIBS * sizeof(struct aac_command), 1529 M_AACBUF, M_WAITOK|M_ZERO); 1530 while (sc->total_fibs < AAC_PREALLOCATE_FIBS) { 1531 if (aac_alloc_commands(sc) != 0) 1532 break; 1533 } 1534 if (sc->total_fibs == 0) 1535 goto out; 1536 1537 /* 1538 * Fill in the init structure. This tells the adapter about the 1539 * physical location of various important shared data structures. 1540 */ 1541 ip = &sc->aac_common->ac_init; 1542 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1543 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1544 1545 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1546 offsetof(struct aac_common, ac_fibs); 1547 ip->AdapterFibsVirtualAddress = 0; 1548 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1549 ip->AdapterFibAlign = sizeof(struct aac_fib); 1550 1551 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1552 offsetof(struct aac_common, ac_printf); 1553 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1554 1555 /* 1556 * The adapter assumes that pages are 4K in size, except on some 1557 * broken firmware versions that do the page->byte conversion twice, 1558 * therefore 'assuming' that this value is in 16MB units (2^24). 1559 * Round up since the granularity is so high. 1560 */ 1561 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1562 if (sc->flags & AAC_FLAGS_BROKEN_MEMMAP) { 1563 ip->HostPhysMemPages = 1564 (ip->HostPhysMemPages + AAC_PAGE_SIZE) / AAC_PAGE_SIZE; 1565 } 1566 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1567 1568 /* 1569 * Initialise FIB queues. Note that it appears that the layout of the 1570 * indexes and the segmentation of the entries may be mandated by the 1571 * adapter, which is only told about the base of the queue index fields. 1572 * 1573 * The initial values of the indices are assumed to inform the adapter 1574 * of the sizes of the respective queues, and theoretically it could 1575 * work out the entire layout of the queue structures from this. We 1576 * take the easy route and just lay this area out like everyone else 1577 * does. 1578 * 1579 * The Linux driver uses a much more complex scheme whereby several 1580 * header records are kept for each queue. We use a couple of generic 1581 * list manipulation functions which 'know' the size of each list by 1582 * virtue of a table. 1583 */ 1584 qoffset = offsetof(struct aac_common, ac_qbuf) + AAC_QUEUE_ALIGN; 1585 qoffset &= ~(AAC_QUEUE_ALIGN - 1); 1586 sc->aac_queues = 1587 (struct aac_queue_table *)((uintptr_t)sc->aac_common + qoffset); 1588 ip->CommHeaderAddress = sc->aac_common_busaddr + qoffset; 1589 1590 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1591 AAC_HOST_NORM_CMD_ENTRIES; 1592 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1593 AAC_HOST_NORM_CMD_ENTRIES; 1594 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1595 AAC_HOST_HIGH_CMD_ENTRIES; 1596 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1597 AAC_HOST_HIGH_CMD_ENTRIES; 1598 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1599 AAC_ADAP_NORM_CMD_ENTRIES; 1600 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1601 AAC_ADAP_NORM_CMD_ENTRIES; 1602 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1603 AAC_ADAP_HIGH_CMD_ENTRIES; 1604 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1605 AAC_ADAP_HIGH_CMD_ENTRIES; 1606 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1607 AAC_HOST_NORM_RESP_ENTRIES; 1608 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1609 AAC_HOST_NORM_RESP_ENTRIES; 1610 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1611 AAC_HOST_HIGH_RESP_ENTRIES; 1612 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1613 AAC_HOST_HIGH_RESP_ENTRIES; 1614 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1615 AAC_ADAP_NORM_RESP_ENTRIES; 1616 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1617 AAC_ADAP_NORM_RESP_ENTRIES; 1618 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1619 AAC_ADAP_HIGH_RESP_ENTRIES; 1620 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1621 AAC_ADAP_HIGH_RESP_ENTRIES; 1622 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1623 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1624 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1625 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1626 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1627 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1628 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1629 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1630 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1631 &sc->aac_queues->qt_HostNormRespQueue[0]; 1632 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1633 &sc->aac_queues->qt_HostHighRespQueue[0]; 1634 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1635 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1636 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1637 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1638 1639 /* 1640 * Do controller-type-specific initialisation 1641 */ 1642 switch (sc->aac_hwif) { 1643 case AAC_HWIF_I960RX: 1644 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1645 break; 1646 } 1647 1648 /* 1649 * Give the init structure to the controller. 1650 */ 1651 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1652 sc->aac_common_busaddr + 1653 offsetof(struct aac_common, ac_init), 0, 0, 0, 1654 NULL)) { 1655 device_printf(sc->aac_dev, 1656 "error establishing init structure\n"); 1657 error = EIO; 1658 goto out; 1659 } 1660 1661 error = 0; 1662 out: 1663 return(error); 1664 } 1665 1666 /* 1667 * Send a synchronous command to the controller and wait for a result. 1668 */ 1669 static int 1670 aac_sync_command(struct aac_softc *sc, u_int32_t command, 1671 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1672 u_int32_t *sp) 1673 { 1674 time_t then; 1675 u_int32_t status; 1676 1677 debug_called(3); 1678 1679 /* populate the mailbox */ 1680 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1681 1682 /* ensure the sync command doorbell flag is cleared */ 1683 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1684 1685 /* then set it to signal the adapter */ 1686 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1687 1688 /* spin waiting for the command to complete */ 1689 then = time_second; 1690 do { 1691 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1692 debug(1, "timed out"); 1693 return(EIO); 1694 } 1695 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1696 1697 /* clear the completion flag */ 1698 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1699 1700 /* get the command status */ 1701 status = AAC_GET_MAILBOX(sc, 0); 1702 if (sp != NULL) 1703 *sp = status; 1704 return(0); 1705 } 1706 1707 /* 1708 * Grab the sync fib area. 1709 */ 1710 int 1711 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1712 { 1713 1714 /* 1715 * If the force flag is set, the system is shutting down, or in 1716 * trouble. Ignore the mutex. 1717 */ 1718 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1719 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1720 1721 *fib = &sc->aac_common->ac_sync_fib; 1722 1723 return (1); 1724 } 1725 1726 /* 1727 * Release the sync fib area. 1728 */ 1729 void 1730 aac_release_sync_fib(struct aac_softc *sc) 1731 { 1732 1733 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1734 } 1735 1736 /* 1737 * Send a synchronous FIB to the controller and wait for a result. 1738 */ 1739 int 1740 aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1741 struct aac_fib *fib, u_int16_t datasize) 1742 { 1743 debug_called(3); 1744 1745 if (datasize > AAC_FIB_DATASIZE) 1746 return(EINVAL); 1747 1748 /* 1749 * Set up the sync FIB 1750 */ 1751 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1752 AAC_FIBSTATE_INITIALISED | 1753 AAC_FIBSTATE_EMPTY; 1754 fib->Header.XferState |= xferstate; 1755 fib->Header.Command = command; 1756 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1757 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1758 fib->Header.SenderSize = sizeof(struct aac_fib); 1759 fib->Header.SenderFibAddress = 0; /* Not needed */ 1760 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1761 offsetof(struct aac_common, 1762 ac_sync_fib); 1763 1764 /* 1765 * Give the FIB to the controller, wait for a response. 1766 */ 1767 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1768 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1769 debug(2, "IO error"); 1770 return(EIO); 1771 } 1772 1773 return (0); 1774 } 1775 1776 /* 1777 * Adapter-space FIB queue manipulation 1778 * 1779 * Note that the queue implementation here is a little funky; neither the PI or 1780 * CI will ever be zero. This behaviour is a controller feature. 1781 */ 1782 static struct { 1783 int size; 1784 int notify; 1785 } aac_qinfo[] = { 1786 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1787 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1788 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1789 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1790 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1791 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1792 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1793 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1794 }; 1795 1796 /* 1797 * Atomically insert an entry into the nominated queue, returns 0 on success or 1798 * EBUSY if the queue is full. 1799 * 1800 * Note: it would be more efficient to defer notifying the controller in 1801 * the case where we may be inserting several entries in rapid succession, 1802 * but implementing this usefully may be difficult (it would involve a 1803 * separate queue/notify interface). 1804 */ 1805 static int 1806 aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1807 { 1808 u_int32_t pi, ci; 1809 int error; 1810 u_int32_t fib_size; 1811 u_int32_t fib_addr; 1812 1813 debug_called(3); 1814 1815 fib_size = cm->cm_fib->Header.Size; 1816 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1817 1818 /* get the producer/consumer indices */ 1819 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1820 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1821 1822 /* wrap the queue? */ 1823 if (pi >= aac_qinfo[queue].size) 1824 pi = 0; 1825 1826 /* check for queue full */ 1827 if ((pi + 1) == ci) { 1828 error = EBUSY; 1829 goto out; 1830 } 1831 1832 /* populate queue entry */ 1833 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1834 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1835 1836 /* update producer index */ 1837 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1838 1839 /* 1840 * To avoid a race with its completion interrupt, place this command on 1841 * the busy queue prior to advertising it to the controller. 1842 */ 1843 aac_enqueue_busy(cm); 1844 1845 /* notify the adapter if we know how */ 1846 if (aac_qinfo[queue].notify != 0) 1847 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1848 1849 error = 0; 1850 1851 out: 1852 return(error); 1853 } 1854 1855 /* 1856 * Atomically remove one entry from the nominated queue, returns 0 on 1857 * success or ENOENT if the queue is empty. 1858 */ 1859 static int 1860 aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1861 struct aac_fib **fib_addr) 1862 { 1863 u_int32_t pi, ci; 1864 u_int32_t fib_index; 1865 int error; 1866 int notify; 1867 1868 debug_called(3); 1869 1870 /* get the producer/consumer indices */ 1871 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1872 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1873 1874 /* check for queue empty */ 1875 if (ci == pi) { 1876 error = ENOENT; 1877 goto out; 1878 } 1879 1880 /* wrap the pi so the following test works */ 1881 if (pi >= aac_qinfo[queue].size) 1882 pi = 0; 1883 1884 notify = 0; 1885 if (ci == pi + 1) 1886 notify++; 1887 1888 /* wrap the queue? */ 1889 if (ci >= aac_qinfo[queue].size) 1890 ci = 0; 1891 1892 /* fetch the entry */ 1893 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1894 1895 switch (queue) { 1896 case AAC_HOST_NORM_CMD_QUEUE: 1897 case AAC_HOST_HIGH_CMD_QUEUE: 1898 /* 1899 * The aq_fib_addr is only 32 bits wide so it can't be counted 1900 * on to hold an address. For AIF's, the adapter assumes 1901 * that it's giving us an address into the array of AIF fibs. 1902 * Therefore, we have to convert it to an index. 1903 */ 1904 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr / 1905 sizeof(struct aac_fib); 1906 *fib_addr = &sc->aac_common->ac_fibs[fib_index]; 1907 break; 1908 1909 case AAC_HOST_NORM_RESP_QUEUE: 1910 case AAC_HOST_HIGH_RESP_QUEUE: 1911 { 1912 struct aac_command *cm; 1913 1914 /* 1915 * As above, an index is used instead of an actual address. 1916 * Gotta shift the index to account for the fast response 1917 * bit. No other correction is needed since this value was 1918 * originally provided by the driver via the SenderFibAddress 1919 * field. 1920 */ 1921 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr; 1922 cm = sc->aac_commands + (fib_index >> 1); 1923 *fib_addr = cm->cm_fib; 1924 1925 /* 1926 * Is this a fast response? If it is, update the fib fields in 1927 * local memory since the whole fib isn't DMA'd back up. 1928 */ 1929 if (fib_index & 0x01) { 1930 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1931 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1932 } 1933 break; 1934 } 1935 default: 1936 panic("Invalid queue in aac_dequeue_fib()"); 1937 break; 1938 } 1939 1940 /* update consumer index */ 1941 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1942 1943 /* if we have made the queue un-full, notify the adapter */ 1944 if (notify && (aac_qinfo[queue].notify != 0)) 1945 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1946 error = 0; 1947 1948 out: 1949 return(error); 1950 } 1951 1952 /* 1953 * Put our response to an Adapter Initialed Fib on the response queue 1954 */ 1955 static int 1956 aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1957 { 1958 u_int32_t pi, ci; 1959 int error; 1960 u_int32_t fib_size; 1961 u_int32_t fib_addr; 1962 1963 debug_called(1); 1964 1965 /* Tell the adapter where the FIB is */ 1966 fib_size = fib->Header.Size; 1967 fib_addr = fib->Header.SenderFibAddress; 1968 fib->Header.ReceiverFibAddress = fib_addr; 1969 1970 /* get the producer/consumer indices */ 1971 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1972 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1973 1974 /* wrap the queue? */ 1975 if (pi >= aac_qinfo[queue].size) 1976 pi = 0; 1977 1978 /* check for queue full */ 1979 if ((pi + 1) == ci) { 1980 error = EBUSY; 1981 goto out; 1982 } 1983 1984 /* populate queue entry */ 1985 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1986 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1987 1988 /* update producer index */ 1989 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1990 1991 /* notify the adapter if we know how */ 1992 if (aac_qinfo[queue].notify != 0) 1993 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1994 1995 error = 0; 1996 1997 out: 1998 return(error); 1999 } 2000 2001 /* 2002 * Check for commands that have been outstanding for a suspiciously long time, 2003 * and complain about them. 2004 */ 2005 static void 2006 aac_timeout(struct aac_softc *sc) 2007 { 2008 struct aac_command *cm; 2009 time_t deadline; 2010 2011 /* 2012 * Traverse the busy command list, bitch about late commands once 2013 * only. 2014 */ 2015 deadline = time_second - AAC_CMD_TIMEOUT; 2016 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 2017 if ((cm->cm_timestamp < deadline) 2018 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 2019 cm->cm_flags |= AAC_CMD_TIMEDOUT; 2020 device_printf(sc->aac_dev, 2021 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 2022 cm, (int)(time_second-cm->cm_timestamp)); 2023 AAC_PRINT_FIB(sc, cm->cm_fib); 2024 } 2025 } 2026 2027 return; 2028 } 2029 2030 /* 2031 * Interface Function Vectors 2032 */ 2033 2034 /* 2035 * Read the current firmware status word. 2036 */ 2037 static int 2038 aac_sa_get_fwstatus(struct aac_softc *sc) 2039 { 2040 debug_called(3); 2041 2042 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 2043 } 2044 2045 static int 2046 aac_rx_get_fwstatus(struct aac_softc *sc) 2047 { 2048 debug_called(3); 2049 2050 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2051 } 2052 2053 static int 2054 aac_fa_get_fwstatus(struct aac_softc *sc) 2055 { 2056 int val; 2057 2058 debug_called(3); 2059 2060 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2061 return (val); 2062 } 2063 2064 /* 2065 * Notify the controller of a change in a given queue 2066 */ 2067 2068 static void 2069 aac_sa_qnotify(struct aac_softc *sc, int qbit) 2070 { 2071 debug_called(3); 2072 2073 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2074 } 2075 2076 static void 2077 aac_rx_qnotify(struct aac_softc *sc, int qbit) 2078 { 2079 debug_called(3); 2080 2081 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2082 } 2083 2084 static void 2085 aac_fa_qnotify(struct aac_softc *sc, int qbit) 2086 { 2087 debug_called(3); 2088 2089 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2090 AAC_FA_HACK(sc); 2091 } 2092 2093 /* 2094 * Get the interrupt reason bits 2095 */ 2096 static int 2097 aac_sa_get_istatus(struct aac_softc *sc) 2098 { 2099 debug_called(3); 2100 2101 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2102 } 2103 2104 static int 2105 aac_rx_get_istatus(struct aac_softc *sc) 2106 { 2107 debug_called(3); 2108 2109 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2110 } 2111 2112 static int 2113 aac_fa_get_istatus(struct aac_softc *sc) 2114 { 2115 int val; 2116 2117 debug_called(3); 2118 2119 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2120 return (val); 2121 } 2122 2123 /* 2124 * Clear some interrupt reason bits 2125 */ 2126 static void 2127 aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2128 { 2129 debug_called(3); 2130 2131 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2132 } 2133 2134 static void 2135 aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2136 { 2137 debug_called(3); 2138 2139 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2140 } 2141 2142 static void 2143 aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2144 { 2145 debug_called(3); 2146 2147 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2148 AAC_FA_HACK(sc); 2149 } 2150 2151 /* 2152 * Populate the mailbox and set the command word 2153 */ 2154 static void 2155 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2156 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2157 { 2158 debug_called(4); 2159 2160 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2161 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2162 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2163 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2164 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2165 } 2166 2167 static void 2168 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2169 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2170 { 2171 debug_called(4); 2172 2173 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2174 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2175 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2176 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2177 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2178 } 2179 2180 static void 2181 aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2182 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2183 { 2184 debug_called(4); 2185 2186 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2187 AAC_FA_HACK(sc); 2188 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2189 AAC_FA_HACK(sc); 2190 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2191 AAC_FA_HACK(sc); 2192 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2193 AAC_FA_HACK(sc); 2194 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2195 AAC_FA_HACK(sc); 2196 } 2197 2198 /* 2199 * Fetch the immediate command status word 2200 */ 2201 static int 2202 aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2203 { 2204 debug_called(4); 2205 2206 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2207 } 2208 2209 static int 2210 aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2211 { 2212 debug_called(4); 2213 2214 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2215 } 2216 2217 static int 2218 aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2219 { 2220 int val; 2221 2222 debug_called(4); 2223 2224 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2225 return (val); 2226 } 2227 2228 /* 2229 * Set/clear interrupt masks 2230 */ 2231 static void 2232 aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2233 { 2234 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2235 2236 if (enable) { 2237 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2238 } else { 2239 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2240 } 2241 } 2242 2243 static void 2244 aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2245 { 2246 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2247 2248 if (enable) { 2249 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2250 } else { 2251 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2252 } 2253 } 2254 2255 static void 2256 aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2257 { 2258 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2259 2260 if (enable) { 2261 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2262 AAC_FA_HACK(sc); 2263 } else { 2264 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2265 AAC_FA_HACK(sc); 2266 } 2267 } 2268 2269 /* 2270 * Debugging and Diagnostics 2271 */ 2272 2273 /* 2274 * Print some information about the controller. 2275 */ 2276 static void 2277 aac_describe_controller(struct aac_softc *sc) 2278 { 2279 struct aac_fib *fib; 2280 struct aac_adapter_info *info; 2281 2282 debug_called(2); 2283 2284 aac_alloc_sync_fib(sc, &fib, 0); 2285 2286 fib->data[0] = 0; 2287 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2288 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2289 aac_release_sync_fib(sc); 2290 return; 2291 } 2292 info = (struct aac_adapter_info *)&fib->data[0]; 2293 2294 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2295 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2296 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2297 aac_describe_code(aac_battery_platform, 2298 info->batteryPlatform)); 2299 2300 /* save the kernel revision structure for later use */ 2301 sc->aac_revision = info->KernelRevision; 2302 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2303 info->KernelRevision.external.comp.major, 2304 info->KernelRevision.external.comp.minor, 2305 info->KernelRevision.external.comp.dash, 2306 info->KernelRevision.buildNumber, 2307 (u_int32_t)(info->SerialNumber & 0xffffff)); 2308 2309 aac_release_sync_fib(sc); 2310 2311 if (1 || bootverbose) { 2312 device_printf(sc->aac_dev, "Supported Options=%b\n", 2313 sc->supported_options, 2314 "\20" 2315 "\1SNAPSHOT" 2316 "\2CLUSTERS" 2317 "\3WCACHE" 2318 "\4DATA64" 2319 "\5HOSTTIME" 2320 "\6RAID50" 2321 "\7WINDOW4GB" 2322 "\10SCSIUPGD" 2323 "\11SOFTERR" 2324 "\12NORECOND" 2325 "\13SGMAP64" 2326 "\14ALARM" 2327 "\15NONDASD"); 2328 } 2329 } 2330 2331 /* 2332 * Look up a text description of a numeric error code and return a pointer to 2333 * same. 2334 */ 2335 static char * 2336 aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2337 { 2338 int i; 2339 2340 for (i = 0; table[i].string != NULL; i++) 2341 if (table[i].code == code) 2342 return(table[i].string); 2343 return(table[i + 1].string); 2344 } 2345 2346 /* 2347 * Management Interface 2348 */ 2349 2350 static int 2351 aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2352 { 2353 struct aac_softc *sc; 2354 2355 debug_called(2); 2356 2357 sc = dev->si_drv1; 2358 2359 /* Check to make sure the device isn't already open */ 2360 if (sc->aac_state & AAC_STATE_OPEN) { 2361 return EBUSY; 2362 } 2363 sc->aac_state |= AAC_STATE_OPEN; 2364 2365 return 0; 2366 } 2367 2368 static int 2369 aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2370 { 2371 struct aac_softc *sc; 2372 2373 debug_called(2); 2374 2375 sc = dev->si_drv1; 2376 2377 /* Mark this unit as no longer open */ 2378 sc->aac_state &= ~AAC_STATE_OPEN; 2379 2380 return 0; 2381 } 2382 2383 static int 2384 aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2385 { 2386 union aac_statrequest *as; 2387 struct aac_softc *sc; 2388 int error = 0; 2389 uint32_t cookie; 2390 2391 debug_called(2); 2392 2393 as = (union aac_statrequest *)arg; 2394 sc = dev->si_drv1; 2395 2396 switch (cmd) { 2397 case AACIO_STATS: 2398 switch (as->as_item) { 2399 case AACQ_FREE: 2400 case AACQ_BIO: 2401 case AACQ_READY: 2402 case AACQ_BUSY: 2403 case AACQ_COMPLETE: 2404 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2405 sizeof(struct aac_qstat)); 2406 break; 2407 default: 2408 error = ENOENT; 2409 break; 2410 } 2411 break; 2412 2413 case FSACTL_SENDFIB: 2414 arg = *(caddr_t*)arg; 2415 case FSACTL_LNX_SENDFIB: 2416 debug(1, "FSACTL_SENDFIB"); 2417 error = aac_ioctl_sendfib(sc, arg); 2418 break; 2419 case FSACTL_AIF_THREAD: 2420 case FSACTL_LNX_AIF_THREAD: 2421 debug(1, "FSACTL_AIF_THREAD"); 2422 error = EINVAL; 2423 break; 2424 case FSACTL_OPEN_GET_ADAPTER_FIB: 2425 arg = *(caddr_t*)arg; 2426 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2427 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2428 /* 2429 * Pass the caller out an AdapterFibContext. 2430 * 2431 * Note that because we only support one opener, we 2432 * basically ignore this. Set the caller's context to a magic 2433 * number just in case. 2434 * 2435 * The Linux code hands the driver a pointer into kernel space, 2436 * and then trusts it when the caller hands it back. Aiee! 2437 * Here, we give it the proc pointer of the per-adapter aif 2438 * thread. It's only used as a sanity check in other calls. 2439 */ 2440 cookie = (uint32_t)(uintptr_t)sc->aifthread; 2441 error = copyout(&cookie, arg, sizeof(cookie)); 2442 break; 2443 case FSACTL_GET_NEXT_ADAPTER_FIB: 2444 arg = *(caddr_t*)arg; 2445 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2446 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2447 error = aac_getnext_aif(sc, arg); 2448 break; 2449 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2450 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2451 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2452 /* don't do anything here */ 2453 break; 2454 case FSACTL_MINIPORT_REV_CHECK: 2455 arg = *(caddr_t*)arg; 2456 case FSACTL_LNX_MINIPORT_REV_CHECK: 2457 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2458 error = aac_rev_check(sc, arg); 2459 break; 2460 case FSACTL_QUERY_DISK: 2461 arg = *(caddr_t*)arg; 2462 case FSACTL_LNX_QUERY_DISK: 2463 debug(1, "FSACTL_QUERY_DISK"); 2464 error = aac_query_disk(sc, arg); 2465 break; 2466 case FSACTL_DELETE_DISK: 2467 case FSACTL_LNX_DELETE_DISK: 2468 /* 2469 * We don't trust the underland to tell us when to delete a 2470 * container, rather we rely on an AIF coming from the 2471 * controller 2472 */ 2473 error = 0; 2474 break; 2475 default: 2476 debug(1, "unsupported cmd 0x%lx\n", cmd); 2477 error = EINVAL; 2478 break; 2479 } 2480 return(error); 2481 } 2482 2483 static int 2484 aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2485 { 2486 struct aac_softc *sc; 2487 int revents; 2488 2489 sc = dev->si_drv1; 2490 revents = 0; 2491 2492 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2493 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2494 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2495 revents |= poll_events & (POLLIN | POLLRDNORM); 2496 } 2497 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2498 2499 if (revents == 0) { 2500 if (poll_events & (POLLIN | POLLRDNORM)) 2501 selrecord(td, &sc->rcv_select); 2502 } 2503 2504 return (revents); 2505 } 2506 2507 /* 2508 * Send a FIB supplied from userspace 2509 */ 2510 static int 2511 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2512 { 2513 struct aac_command *cm; 2514 int size, error; 2515 2516 debug_called(2); 2517 2518 cm = NULL; 2519 2520 /* 2521 * Get a command 2522 */ 2523 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 2524 if (aac_alloc_command(sc, &cm)) { 2525 error = EBUSY; 2526 goto out; 2527 } 2528 2529 /* 2530 * Fetch the FIB header, then re-copy to get data as well. 2531 */ 2532 if ((error = copyin(ufib, cm->cm_fib, 2533 sizeof(struct aac_fib_header))) != 0) 2534 goto out; 2535 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2536 if (size > sizeof(struct aac_fib)) { 2537 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %zd)\n", 2538 size, sizeof(struct aac_fib)); 2539 size = sizeof(struct aac_fib); 2540 } 2541 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2542 goto out; 2543 cm->cm_fib->Header.Size = size; 2544 cm->cm_timestamp = time_second; 2545 2546 /* 2547 * Pass the FIB to the controller, wait for it to complete. 2548 */ 2549 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2550 device_printf(sc->aac_dev, 2551 "aac_wait_command return %d\n", error); 2552 goto out; 2553 } 2554 2555 /* 2556 * Copy the FIB and data back out to the caller. 2557 */ 2558 size = cm->cm_fib->Header.Size; 2559 if (size > sizeof(struct aac_fib)) { 2560 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %zd)\n", 2561 size, sizeof(struct aac_fib)); 2562 size = sizeof(struct aac_fib); 2563 } 2564 error = copyout(cm->cm_fib, ufib, size); 2565 2566 out: 2567 if (cm != NULL) { 2568 aac_release_command(cm); 2569 } 2570 2571 AAC_LOCK_RELEASE(&sc->aac_io_lock); 2572 return(error); 2573 } 2574 2575 /* 2576 * Handle an AIF sent to us by the controller; queue it for later reference. 2577 * If the queue fills up, then drop the older entries. 2578 */ 2579 static void 2580 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2581 { 2582 struct aac_aif_command *aif; 2583 struct aac_container *co, *co_next; 2584 struct aac_mntinfo *mi; 2585 struct aac_mntinforesp *mir = NULL; 2586 u_int16_t rsize; 2587 int next, found; 2588 int count = 0, added = 0, i = 0; 2589 2590 debug_called(2); 2591 2592 aif = (struct aac_aif_command*)&fib->data[0]; 2593 aac_print_aif(sc, aif); 2594 2595 /* Is it an event that we should care about? */ 2596 switch (aif->command) { 2597 case AifCmdEventNotify: 2598 switch (aif->data.EN.type) { 2599 case AifEnAddContainer: 2600 case AifEnDeleteContainer: 2601 /* 2602 * A container was added or deleted, but the message 2603 * doesn't tell us anything else! Re-enumerate the 2604 * containers and sort things out. 2605 */ 2606 aac_alloc_sync_fib(sc, &fib, 0); 2607 mi = (struct aac_mntinfo *)&fib->data[0]; 2608 do { 2609 /* 2610 * Ask the controller for its containers one at 2611 * a time. 2612 * XXX What if the controller's list changes 2613 * midway through this enumaration? 2614 * XXX This should be done async. 2615 */ 2616 bzero(mi, sizeof(struct aac_mntinfo)); 2617 mi->Command = VM_NameServe; 2618 mi->MntType = FT_FILESYS; 2619 mi->MntCount = i; 2620 rsize = sizeof(mir); 2621 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2622 sizeof(struct aac_mntinfo))) { 2623 printf("Error probing container %d\n", 2624 i); 2625 continue; 2626 } 2627 mir = (struct aac_mntinforesp *)&fib->data[0]; 2628 /* XXX Need to check if count changed */ 2629 count = mir->MntRespCount; 2630 /* 2631 * Check the container against our list. 2632 * co->co_found was already set to 0 in a 2633 * previous run. 2634 */ 2635 if ((mir->Status == ST_OK) && 2636 (mir->MntTable[0].VolType != CT_NONE)) { 2637 found = 0; 2638 TAILQ_FOREACH(co, 2639 &sc->aac_container_tqh, 2640 co_link) { 2641 if (co->co_mntobj.ObjectId == 2642 mir->MntTable[0].ObjectId) { 2643 co->co_found = 1; 2644 found = 1; 2645 break; 2646 } 2647 } 2648 /* 2649 * If the container matched, continue 2650 * in the list. 2651 */ 2652 if (found) { 2653 i++; 2654 continue; 2655 } 2656 2657 /* 2658 * This is a new container. Do all the 2659 * appropriate things to set it up. 2660 */ 2661 aac_add_container(sc, mir, 1); 2662 added = 1; 2663 } 2664 i++; 2665 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 2666 aac_release_sync_fib(sc); 2667 2668 /* 2669 * Go through our list of containers and see which ones 2670 * were not marked 'found'. Since the controller didn't 2671 * list them they must have been deleted. Do the 2672 * appropriate steps to destroy the device. Also reset 2673 * the co->co_found field. 2674 */ 2675 co = TAILQ_FIRST(&sc->aac_container_tqh); 2676 while (co != NULL) { 2677 if (co->co_found == 0) { 2678 device_delete_child(sc->aac_dev, 2679 co->co_disk); 2680 co_next = TAILQ_NEXT(co, co_link); 2681 AAC_LOCK_ACQUIRE(&sc-> 2682 aac_container_lock); 2683 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2684 co_link); 2685 AAC_LOCK_RELEASE(&sc-> 2686 aac_container_lock); 2687 FREE(co, M_AACBUF); 2688 co = co_next; 2689 } else { 2690 co->co_found = 0; 2691 co = TAILQ_NEXT(co, co_link); 2692 } 2693 } 2694 2695 /* Attach the newly created containers */ 2696 if (added) 2697 bus_generic_attach(sc->aac_dev); 2698 2699 break; 2700 2701 default: 2702 break; 2703 } 2704 2705 default: 2706 break; 2707 } 2708 2709 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2710 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2711 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2712 if (next != sc->aac_aifq_tail) { 2713 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2714 sc->aac_aifq_head = next; 2715 2716 /* On the off chance that someone is sleeping for an aif... */ 2717 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2718 wakeup(sc->aac_aifq); 2719 /* Wakeup any poll()ers */ 2720 selwakeup(&sc->rcv_select); 2721 } 2722 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2723 2724 return; 2725 } 2726 2727 /* 2728 * Return the Revision of the driver to userspace and check to see if the 2729 * userspace app is possibly compatible. This is extremely bogus since 2730 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2731 * returning what the card reported. 2732 */ 2733 static int 2734 aac_rev_check(struct aac_softc *sc, caddr_t udata) 2735 { 2736 struct aac_rev_check rev_check; 2737 struct aac_rev_check_resp rev_check_resp; 2738 int error = 0; 2739 2740 debug_called(2); 2741 2742 /* 2743 * Copyin the revision struct from userspace 2744 */ 2745 if ((error = copyin(udata, (caddr_t)&rev_check, 2746 sizeof(struct aac_rev_check))) != 0) { 2747 return error; 2748 } 2749 2750 debug(2, "Userland revision= %d\n", 2751 rev_check.callingRevision.buildNumber); 2752 2753 /* 2754 * Doctor up the response struct. 2755 */ 2756 rev_check_resp.possiblyCompatible = 1; 2757 rev_check_resp.adapterSWRevision.external.ul = 2758 sc->aac_revision.external.ul; 2759 rev_check_resp.adapterSWRevision.buildNumber = 2760 sc->aac_revision.buildNumber; 2761 2762 return(copyout((caddr_t)&rev_check_resp, udata, 2763 sizeof(struct aac_rev_check_resp))); 2764 } 2765 2766 /* 2767 * Pass the caller the next AIF in their queue 2768 */ 2769 static int 2770 aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2771 { 2772 struct get_adapter_fib_ioctl agf; 2773 int error; 2774 2775 debug_called(2); 2776 2777 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2778 2779 /* 2780 * Check the magic number that we gave the caller. 2781 */ 2782 if (agf.AdapterFibContext != (int)(uintptr_t)sc->aifthread) { 2783 error = EFAULT; 2784 } else { 2785 error = aac_return_aif(sc, agf.AifFib); 2786 if ((error == EAGAIN) && (agf.Wait)) { 2787 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2788 while (error == EAGAIN) { 2789 error = tsleep(sc->aac_aifq, PRIBIO | 2790 PCATCH, "aacaif", 0); 2791 if (error == 0) 2792 error = aac_return_aif(sc, 2793 agf.AifFib); 2794 } 2795 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2796 } 2797 } 2798 } 2799 return(error); 2800 } 2801 2802 /* 2803 * Hand the next AIF off the top of the queue out to userspace. 2804 */ 2805 static int 2806 aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2807 { 2808 int next, error; 2809 2810 debug_called(2); 2811 2812 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2813 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2814 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2815 return (EAGAIN); 2816 } 2817 2818 next = (sc->aac_aifq_tail + 1) % AAC_AIFQ_LENGTH; 2819 error = copyout(&sc->aac_aifq[next], uptr, 2820 sizeof(struct aac_aif_command)); 2821 if (error) 2822 device_printf(sc->aac_dev, 2823 "aac_return_aif: copyout returned %d\n", error); 2824 else 2825 sc->aac_aifq_tail = next; 2826 2827 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2828 return(error); 2829 } 2830 2831 /* 2832 * Give the userland some information about the container. The AAC arch 2833 * expects the driver to be a SCSI passthrough type driver, so it expects 2834 * the containers to have b:t:l numbers. Fake it. 2835 */ 2836 static int 2837 aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2838 { 2839 struct aac_query_disk query_disk; 2840 struct aac_container *co; 2841 struct aac_disk *disk; 2842 int error, id; 2843 2844 debug_called(2); 2845 2846 disk = NULL; 2847 2848 error = copyin(uptr, (caddr_t)&query_disk, 2849 sizeof(struct aac_query_disk)); 2850 if (error) 2851 return (error); 2852 2853 id = query_disk.ContainerNumber; 2854 if (id == -1) 2855 return (EINVAL); 2856 2857 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2858 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2859 if (co->co_mntobj.ObjectId == id) 2860 break; 2861 } 2862 2863 if (co == NULL) { 2864 query_disk.Valid = 0; 2865 query_disk.Locked = 0; 2866 query_disk.Deleted = 1; /* XXX is this right? */ 2867 } else { 2868 disk = device_get_softc(co->co_disk); 2869 query_disk.Valid = 1; 2870 query_disk.Locked = 2871 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2872 query_disk.Deleted = 0; 2873 query_disk.Bus = device_get_unit(sc->aac_dev); 2874 query_disk.Target = disk->unit; 2875 query_disk.Lun = 0; 2876 query_disk.UnMapped = 0; 2877 sprintf(&query_disk.diskDeviceName[0], "%s%d", 2878 disk->ad_disk.d_name, disk->ad_disk.d_unit); 2879 } 2880 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2881 2882 error = copyout((caddr_t)&query_disk, uptr, 2883 sizeof(struct aac_query_disk)); 2884 2885 return (error); 2886 } 2887 2888 static void 2889 aac_get_bus_info(struct aac_softc *sc) 2890 { 2891 struct aac_fib *fib; 2892 struct aac_ctcfg *c_cmd; 2893 struct aac_ctcfg_resp *c_resp; 2894 struct aac_vmioctl *vmi; 2895 struct aac_vmi_businf_resp *vmi_resp; 2896 struct aac_getbusinf businfo; 2897 struct aac_sim *caminf; 2898 device_t child; 2899 int i, found, error; 2900 2901 aac_alloc_sync_fib(sc, &fib, 0); 2902 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2903 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2904 2905 c_cmd->Command = VM_ContainerConfig; 2906 c_cmd->cmd = CT_GET_SCSI_METHOD; 2907 c_cmd->param = 0; 2908 2909 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2910 sizeof(struct aac_ctcfg)); 2911 if (error) { 2912 device_printf(sc->aac_dev, "Error %d sending " 2913 "VM_ContainerConfig command\n", error); 2914 aac_release_sync_fib(sc); 2915 return; 2916 } 2917 2918 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2919 if (c_resp->Status != ST_OK) { 2920 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2921 c_resp->Status); 2922 aac_release_sync_fib(sc); 2923 return; 2924 } 2925 2926 sc->scsi_method_id = c_resp->param; 2927 2928 vmi = (struct aac_vmioctl *)&fib->data[0]; 2929 bzero(vmi, sizeof(struct aac_vmioctl)); 2930 2931 vmi->Command = VM_Ioctl; 2932 vmi->ObjType = FT_DRIVE; 2933 vmi->MethId = sc->scsi_method_id; 2934 vmi->ObjId = 0; 2935 vmi->IoctlCmd = GetBusInfo; 2936 2937 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2938 sizeof(struct aac_vmioctl)); 2939 if (error) { 2940 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2941 error); 2942 aac_release_sync_fib(sc); 2943 return; 2944 } 2945 2946 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2947 if (vmi_resp->Status != ST_OK) { 2948 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2949 vmi_resp->Status); 2950 aac_release_sync_fib(sc); 2951 return; 2952 } 2953 2954 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2955 aac_release_sync_fib(sc); 2956 2957 found = 0; 2958 for (i = 0; i < businfo.BusCount; i++) { 2959 if (businfo.BusValid[i] != AAC_BUS_VALID) 2960 continue; 2961 2962 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), 2963 M_AACBUF, M_NOWAIT | M_ZERO); 2964 if (caminf == NULL) 2965 continue; 2966 2967 child = device_add_child(sc->aac_dev, "aacp", -1); 2968 if (child == NULL) { 2969 device_printf(sc->aac_dev, "device_add_child failed\n"); 2970 continue; 2971 } 2972 2973 caminf->TargetsPerBus = businfo.TargetsPerBus; 2974 caminf->BusNumber = i; 2975 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2976 caminf->aac_sc = sc; 2977 caminf->sim_dev = child; 2978 2979 device_set_ivars(child, caminf); 2980 device_set_desc(child, "SCSI Passthrough Bus"); 2981 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2982 2983 found = 1; 2984 } 2985 2986 if (found) 2987 bus_generic_attach(sc->aac_dev); 2988 2989 return; 2990 } 2991