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/sysctl.h> 45 #include <sys/poll.h> 46 #include <sys/ioccom.h> 47 48 #include <sys/bus.h> 49 #include <sys/conf.h> 50 #include <sys/signalvar.h> 51 #include <sys/time.h> 52 #include <sys/eventhandler.h> 53 54 #include <machine/bus_memio.h> 55 #include <machine/bus.h> 56 #include <machine/resource.h> 57 58 #include <dev/aac/aacreg.h> 59 #include <dev/aac/aac_ioctl.h> 60 #include <dev/aac/aacvar.h> 61 #include <dev/aac/aac_tables.h> 62 63 static void aac_startup(void *arg); 64 static void aac_add_container(struct aac_softc *sc, 65 struct aac_mntinforesp *mir, int f); 66 static void aac_get_bus_info(struct aac_softc *sc); 67 68 /* Command Processing */ 69 static void aac_timeout(struct aac_softc *sc); 70 static int aac_map_command(struct aac_command *cm); 71 static void aac_complete(void *context, int pending); 72 static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 73 static void aac_bio_complete(struct aac_command *cm); 74 static int aac_wait_command(struct aac_command *cm, int timeout); 75 static void aac_command_thread(struct aac_softc *sc); 76 77 /* Command Buffer Management */ 78 static void aac_map_command_sg(void *arg, bus_dma_segment_t *segs, 79 int nseg, int error); 80 static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 81 int nseg, int error); 82 static int aac_alloc_commands(struct aac_softc *sc); 83 static void aac_free_commands(struct aac_softc *sc); 84 static void aac_unmap_command(struct aac_command *cm); 85 86 /* Hardware Interface */ 87 static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 88 int error); 89 static int aac_check_firmware(struct aac_softc *sc); 90 static int aac_init(struct aac_softc *sc); 91 static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 92 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 93 u_int32_t arg3, u_int32_t *sp); 94 static int aac_enqueue_fib(struct aac_softc *sc, int queue, 95 struct aac_command *cm); 96 static int aac_dequeue_fib(struct aac_softc *sc, int queue, 97 u_int32_t *fib_size, struct aac_fib **fib_addr); 98 static int aac_enqueue_response(struct aac_softc *sc, int queue, 99 struct aac_fib *fib); 100 101 /* Falcon/PPC interface */ 102 static int aac_fa_get_fwstatus(struct aac_softc *sc); 103 static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 104 static int aac_fa_get_istatus(struct aac_softc *sc); 105 static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 106 static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 107 u_int32_t arg0, u_int32_t arg1, 108 u_int32_t arg2, u_int32_t arg3); 109 static int aac_fa_get_mailbox(struct aac_softc *sc, int mb); 110 static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 111 112 struct aac_interface aac_fa_interface = { 113 aac_fa_get_fwstatus, 114 aac_fa_qnotify, 115 aac_fa_get_istatus, 116 aac_fa_clear_istatus, 117 aac_fa_set_mailbox, 118 aac_fa_get_mailbox, 119 aac_fa_set_interrupts 120 }; 121 122 /* StrongARM interface */ 123 static int aac_sa_get_fwstatus(struct aac_softc *sc); 124 static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 125 static int aac_sa_get_istatus(struct aac_softc *sc); 126 static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 127 static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 128 u_int32_t arg0, u_int32_t arg1, 129 u_int32_t arg2, u_int32_t arg3); 130 static int aac_sa_get_mailbox(struct aac_softc *sc, int mb); 131 static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 132 133 struct aac_interface aac_sa_interface = { 134 aac_sa_get_fwstatus, 135 aac_sa_qnotify, 136 aac_sa_get_istatus, 137 aac_sa_clear_istatus, 138 aac_sa_set_mailbox, 139 aac_sa_get_mailbox, 140 aac_sa_set_interrupts 141 }; 142 143 /* i960Rx interface */ 144 static int aac_rx_get_fwstatus(struct aac_softc *sc); 145 static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 146 static int aac_rx_get_istatus(struct aac_softc *sc); 147 static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 148 static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 149 u_int32_t arg0, u_int32_t arg1, 150 u_int32_t arg2, u_int32_t arg3); 151 static int aac_rx_get_mailbox(struct aac_softc *sc, int mb); 152 static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 153 154 struct aac_interface aac_rx_interface = { 155 aac_rx_get_fwstatus, 156 aac_rx_qnotify, 157 aac_rx_get_istatus, 158 aac_rx_clear_istatus, 159 aac_rx_set_mailbox, 160 aac_rx_get_mailbox, 161 aac_rx_set_interrupts 162 }; 163 164 /* Debugging and Diagnostics */ 165 static void aac_describe_controller(struct aac_softc *sc); 166 static char *aac_describe_code(struct aac_code_lookup *table, 167 u_int32_t code); 168 169 /* Management Interface */ 170 static d_open_t aac_open; 171 static d_close_t aac_close; 172 static d_ioctl_t aac_ioctl; 173 static d_poll_t aac_poll; 174 static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 175 static void aac_handle_aif(struct aac_softc *sc, 176 struct aac_fib *fib); 177 static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 178 static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 179 static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 180 static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 181 182 #define AAC_CDEV_MAJOR 150 183 184 static struct cdevsw aac_cdevsw = { 185 .d_open = aac_open, 186 .d_close = aac_close, 187 .d_ioctl = aac_ioctl, 188 .d_poll = aac_poll, 189 .d_name = "aac", 190 .d_maj = AAC_CDEV_MAJOR, 191 }; 192 193 MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 194 195 /* sysctl node */ 196 SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 197 198 /* 199 * Device Interface 200 */ 201 202 /* 203 * Initialise the controller and softc 204 */ 205 int 206 aac_attach(struct aac_softc *sc) 207 { 208 int error, unit; 209 210 debug_called(1); 211 212 /* 213 * Initialise per-controller queues. 214 */ 215 aac_initq_free(sc); 216 aac_initq_ready(sc); 217 aac_initq_busy(sc); 218 aac_initq_bio(sc); 219 220 /* 221 * Initialise command-completion task. 222 */ 223 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 224 225 /* disable interrupts before we enable anything */ 226 AAC_MASK_INTERRUPTS(sc); 227 228 /* mark controller as suspended until we get ourselves organised */ 229 sc->aac_state |= AAC_STATE_SUSPEND; 230 231 /* 232 * Check that the firmware on the card is supported. 233 */ 234 if ((error = aac_check_firmware(sc)) != 0) 235 return(error); 236 237 /* 238 * Initialize locks 239 */ 240 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 241 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 242 AAC_LOCK_INIT(&sc->aac_io_lock, "AAC I/O lock"); 243 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 244 TAILQ_INIT(&sc->aac_container_tqh); 245 246 247 /* 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 } 730 return (error); 731 } 732 733 /* 734 * Handle notification of one or more FIBs coming from the controller. 735 */ 736 static void 737 aac_command_thread(struct aac_softc *sc) 738 { 739 struct aac_fib *fib; 740 u_int32_t fib_size; 741 int size; 742 743 debug_called(2); 744 745 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 746 747 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 748 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 749 tsleep(sc->aifthread, PRIBIO, "aifthd", 750 AAC_PERIODIC_INTERVAL * hz); 751 752 if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) 753 aac_timeout(sc); 754 755 /* Check the hardware printf message buffer */ 756 if ((sc->aifflags & AAC_AIFFLAGS_PRINTF) != 0) { 757 sc->aifflags &= ~AAC_AIFFLAGS_PRINTF; 758 aac_print_printf(sc); 759 } 760 761 /* See if any FIBs need to be allocated */ 762 if ((sc->aifflags & AAC_AIFFLAGS_ALLOCFIBS) != 0) { 763 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 764 aac_alloc_commands(sc); 765 sc->aifflags &= ~AAC_AIFFLAGS_ALLOCFIBS; 766 AAC_LOCK_RELEASE(&sc->aac_io_lock); 767 } 768 769 /* While we're here, check to see if any commands are stuck */ 770 while (sc->aifflags & AAC_AIFFLAGS_AIF) { 771 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 772 &fib_size, &fib)) { 773 sc->aifflags &= ~AAC_AIFFLAGS_AIF; 774 break; /* nothing to do */ 775 } 776 777 AAC_PRINT_FIB(sc, fib); 778 779 switch (fib->Header.Command) { 780 case AifRequest: 781 aac_handle_aif(sc, fib); 782 break; 783 default: 784 device_printf(sc->aac_dev, "unknown command " 785 "from controller\n"); 786 break; 787 } 788 789 if ((fib->Header.XferState == 0) || 790 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 791 break; 792 793 /* Return the AIF to the controller. */ 794 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 795 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 796 *(AAC_FSAStatus*)fib->data = ST_OK; 797 798 /* XXX Compute the Size field? */ 799 size = fib->Header.Size; 800 if (size > sizeof(struct aac_fib)) { 801 size = sizeof(struct aac_fib); 802 fib->Header.Size = size; 803 } 804 /* 805 * Since we did not generate this command, it 806 * cannot go through the normal 807 * enqueue->startio chain. 808 */ 809 aac_enqueue_response(sc, 810 AAC_ADAP_NORM_RESP_QUEUE, 811 fib); 812 } 813 } 814 } 815 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 816 wakeup(sc->aac_dev); 817 818 mtx_lock(&Giant); 819 kthread_exit(0); 820 } 821 822 /* 823 * Process completed commands. 824 */ 825 static void 826 aac_complete(void *context, int pending) 827 { 828 struct aac_softc *sc; 829 struct aac_command *cm; 830 struct aac_fib *fib; 831 u_int32_t fib_size; 832 833 debug_called(2); 834 835 sc = (struct aac_softc *)context; 836 837 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 838 839 /* pull completed commands off the queue */ 840 for (;;) { 841 /* look for completed FIBs on our queue */ 842 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 843 &fib)) 844 break; /* nothing to do */ 845 846 /* get the command, unmap and queue for later processing */ 847 cm = sc->aac_commands + fib->Header.SenderData; 848 if (cm == NULL) { 849 AAC_PRINT_FIB(sc, fib); 850 break; 851 } 852 853 aac_remove_busy(cm); 854 aac_unmap_command(cm); /* XXX defer? */ 855 cm->cm_flags |= AAC_CMD_COMPLETED; 856 857 /* is there a completion handler? */ 858 if (cm->cm_complete != NULL) { 859 cm->cm_complete(cm); 860 } else { 861 /* assume that someone is sleeping on this command */ 862 wakeup(cm); 863 } 864 } 865 866 /* see if we can start some more I/O */ 867 sc->flags &= ~AAC_QUEUE_FRZN; 868 aac_startio(sc); 869 870 AAC_LOCK_RELEASE(&sc->aac_io_lock); 871 } 872 873 /* 874 * Handle a bio submitted from a disk device. 875 */ 876 void 877 aac_submit_bio(struct bio *bp) 878 { 879 struct aac_disk *ad; 880 struct aac_softc *sc; 881 882 debug_called(2); 883 884 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 885 sc = ad->ad_controller; 886 887 /* queue the BIO and try to get some work done */ 888 aac_enqueue_bio(sc, bp); 889 aac_startio(sc); 890 } 891 892 /* 893 * Get a bio and build a command to go with it. 894 */ 895 static int 896 aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 897 { 898 struct aac_command *cm; 899 struct aac_fib *fib; 900 struct aac_disk *ad; 901 struct bio *bp; 902 903 debug_called(2); 904 905 /* get the resources we will need */ 906 cm = NULL; 907 if ((bp = aac_dequeue_bio(sc)) == NULL) 908 goto fail; 909 if (aac_alloc_command(sc, &cm)) /* get a command */ 910 goto fail; 911 912 /* fill out the command */ 913 cm->cm_data = (void *)bp->bio_data; 914 cm->cm_datalen = bp->bio_bcount; 915 cm->cm_complete = aac_bio_complete; 916 cm->cm_private = bp; 917 cm->cm_timestamp = time_second; 918 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 919 920 /* build the FIB */ 921 fib = cm->cm_fib; 922 fib->Header.Size = sizeof(struct aac_fib_header); 923 fib->Header.XferState = 924 AAC_FIBSTATE_HOSTOWNED | 925 AAC_FIBSTATE_INITIALISED | 926 AAC_FIBSTATE_EMPTY | 927 AAC_FIBSTATE_FROMHOST | 928 AAC_FIBSTATE_REXPECTED | 929 AAC_FIBSTATE_NORM | 930 AAC_FIBSTATE_ASYNC | 931 AAC_FIBSTATE_FAST_RESPONSE; 932 933 /* build the read/write request */ 934 ad = (struct aac_disk *)bp->bio_disk->d_drv1; 935 936 if ((sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 937 fib->Header.Command = ContainerCommand; 938 if (bp->bio_cmd == BIO_READ) { 939 struct aac_blockread *br; 940 br = (struct aac_blockread *)&fib->data[0]; 941 br->Command = VM_CtBlockRead; 942 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 943 br->BlockNumber = bp->bio_pblkno; 944 br->ByteCount = bp->bio_bcount; 945 fib->Header.Size += sizeof(struct aac_blockread); 946 cm->cm_sgtable = &br->SgMap; 947 cm->cm_flags |= AAC_CMD_DATAIN; 948 } else { 949 struct aac_blockwrite *bw; 950 bw = (struct aac_blockwrite *)&fib->data[0]; 951 bw->Command = VM_CtBlockWrite; 952 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 953 bw->BlockNumber = bp->bio_pblkno; 954 bw->ByteCount = bp->bio_bcount; 955 bw->Stable = CUNSTABLE; 956 fib->Header.Size += sizeof(struct aac_blockwrite); 957 cm->cm_flags |= AAC_CMD_DATAOUT; 958 cm->cm_sgtable = &bw->SgMap; 959 } 960 } else { 961 fib->Header.Command = ContainerCommand64; 962 if (bp->bio_cmd == BIO_READ) { 963 struct aac_blockread64 *br; 964 br = (struct aac_blockread64 *)&fib->data[0]; 965 br->Command = VM_CtHostRead64; 966 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 967 br->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 968 br->BlockNumber = bp->bio_pblkno; 969 br->Pad = 0; 970 br->Flags = 0; 971 fib->Header.Size += sizeof(struct aac_blockread64); 972 cm->cm_flags |= AAC_CMD_DATAOUT; 973 (struct aac_sg_table64 *)cm->cm_sgtable = &br->SgMap64; 974 } else { 975 struct aac_blockwrite64 *bw; 976 bw = (struct aac_blockwrite64 *)&fib->data[0]; 977 bw->Command = VM_CtHostWrite64; 978 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 979 bw->SectorCount = bp->bio_bcount / AAC_BLOCK_SIZE; 980 bw->BlockNumber = bp->bio_pblkno; 981 bw->Pad = 0; 982 bw->Flags = 0; 983 fib->Header.Size += sizeof(struct aac_blockwrite64); 984 cm->cm_flags |= AAC_CMD_DATAIN; 985 (struct aac_sg_table64 *)cm->cm_sgtable = &bw->SgMap64; 986 } 987 } 988 989 *cmp = cm; 990 return(0); 991 992 fail: 993 if (bp != NULL) 994 aac_enqueue_bio(sc, bp); 995 if (cm != NULL) 996 aac_release_command(cm); 997 return(ENOMEM); 998 } 999 1000 /* 1001 * Handle a bio-instigated command that has been completed. 1002 */ 1003 static void 1004 aac_bio_complete(struct aac_command *cm) 1005 { 1006 struct aac_blockread_response *brr; 1007 struct aac_blockwrite_response *bwr; 1008 struct bio *bp; 1009 AAC_FSAStatus status; 1010 1011 /* fetch relevant status and then release the command */ 1012 bp = (struct bio *)cm->cm_private; 1013 if (bp->bio_cmd == BIO_READ) { 1014 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 1015 status = brr->Status; 1016 } else { 1017 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 1018 status = bwr->Status; 1019 } 1020 aac_release_command(cm); 1021 1022 /* fix up the bio based on status */ 1023 if (status == ST_OK) { 1024 bp->bio_resid = 0; 1025 } else { 1026 bp->bio_error = EIO; 1027 bp->bio_flags |= BIO_ERROR; 1028 /* pass an error string out to the disk layer */ 1029 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1030 status); 1031 } 1032 aac_biodone(bp); 1033 } 1034 1035 /* 1036 * Submit a command to the controller, return when it completes. 1037 * XXX This is very dangerous! If the card has gone out to lunch, we could 1038 * be stuck here forever. At the same time, signals are not caught 1039 * because there is a risk that a signal could wakeup the tsleep before 1040 * the card has a chance to complete the command. The passed in timeout 1041 * is ignored for the same reason. Since there is no way to cancel a 1042 * command in progress, we should probably create a 'dead' queue where 1043 * commands go that have been interrupted/timed-out/etc, that keeps them 1044 * out of the free pool. That way, if the card is just slow, it won't 1045 * spam the memory of a command that has been recycled. 1046 */ 1047 static int 1048 aac_wait_command(struct aac_command *cm, int timeout) 1049 { 1050 struct aac_softc *sc; 1051 int error = 0; 1052 1053 debug_called(2); 1054 1055 sc = cm->cm_sc; 1056 1057 /* Put the command on the ready queue and get things going */ 1058 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1059 aac_enqueue_ready(cm); 1060 aac_startio(sc); 1061 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1062 error = msleep(cm, &sc->aac_io_lock, PRIBIO, "aacwait", 0); 1063 } 1064 return(error); 1065 } 1066 1067 /* 1068 *Command Buffer Management 1069 */ 1070 1071 /* 1072 * Allocate a command. 1073 */ 1074 int 1075 aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1076 { 1077 struct aac_command *cm; 1078 1079 debug_called(3); 1080 1081 if ((cm = aac_dequeue_free(sc)) == NULL) { 1082 if (sc->total_fibs < sc->aac_max_fibs) { 1083 sc->aifflags |= AAC_AIFFLAGS_ALLOCFIBS; 1084 wakeup(sc->aifthread); 1085 } 1086 return (EBUSY); 1087 } 1088 1089 *cmp = cm; 1090 return(0); 1091 } 1092 1093 /* 1094 * Release a command back to the freelist. 1095 */ 1096 void 1097 aac_release_command(struct aac_command *cm) 1098 { 1099 debug_called(3); 1100 1101 /* (re)initialise the command/FIB */ 1102 cm->cm_sgtable = NULL; 1103 cm->cm_flags = 0; 1104 cm->cm_complete = NULL; 1105 cm->cm_private = NULL; 1106 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1107 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1108 cm->cm_fib->Header.Flags = 0; 1109 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1110 1111 /* 1112 * These are duplicated in aac_start to cover the case where an 1113 * intermediate stage may have destroyed them. They're left 1114 * initialised here for debugging purposes only. 1115 */ 1116 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 1117 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1118 cm->cm_fib->Header.SenderData = 0; 1119 1120 aac_enqueue_free(cm); 1121 } 1122 1123 /* 1124 * Map helper for command/FIB allocation. 1125 */ 1126 static void 1127 aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1128 { 1129 uint32_t *fibphys; 1130 1131 fibphys = (uint32_t *)arg; 1132 1133 debug_called(3); 1134 1135 *fibphys = segs[0].ds_addr; 1136 } 1137 1138 /* 1139 * Allocate and initialise commands/FIBs for this adapter. 1140 */ 1141 static int 1142 aac_alloc_commands(struct aac_softc *sc) 1143 { 1144 struct aac_command *cm; 1145 struct aac_fibmap *fm; 1146 uint32_t fibphys; 1147 int i, error; 1148 1149 debug_called(2); 1150 1151 if (sc->total_fibs + AAC_FIB_COUNT > sc->aac_max_fibs) 1152 return (ENOMEM); 1153 1154 fm = malloc(sizeof(struct aac_fibmap), M_AACBUF, M_NOWAIT|M_ZERO); 1155 if (fm == NULL) 1156 return (ENOMEM); 1157 1158 /* allocate the FIBs in DMAable memory and load them */ 1159 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs, 1160 BUS_DMA_NOWAIT, &fm->aac_fibmap)) { 1161 device_printf(sc->aac_dev, 1162 "Not enough contiguous memory available.\n"); 1163 free(fm, M_AACBUF); 1164 return (ENOMEM); 1165 } 1166 1167 /* Ignore errors since this doesn't bounce */ 1168 (void)bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs, 1169 AAC_FIB_COUNT * sizeof(struct aac_fib), 1170 aac_map_command_helper, &fibphys, 0); 1171 1172 /* initialise constant fields in the command structure */ 1173 bzero(fm->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1174 for (i = 0; i < AAC_FIB_COUNT; i++) { 1175 cm = sc->aac_commands + sc->total_fibs; 1176 fm->aac_commands = cm; 1177 cm->cm_sc = sc; 1178 cm->cm_fib = fm->aac_fibs + i; 1179 cm->cm_fibphys = fibphys + (i * sizeof(struct aac_fib)); 1180 cm->cm_index = sc->total_fibs; 1181 1182 if ((error = bus_dmamap_create(sc->aac_buffer_dmat, 0, 1183 &cm->cm_datamap)) == 0) 1184 aac_release_command(cm); 1185 else 1186 break; 1187 sc->total_fibs++; 1188 } 1189 1190 if (i > 0) { 1191 TAILQ_INSERT_TAIL(&sc->aac_fibmap_tqh, fm, fm_link); 1192 debug(1, "total_fibs= %d\n", sc->total_fibs); 1193 return (0); 1194 } 1195 1196 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1197 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1198 free(fm, M_AACBUF); 1199 return (ENOMEM); 1200 } 1201 1202 /* 1203 * Free FIBs owned by this adapter. 1204 */ 1205 static void 1206 aac_free_commands(struct aac_softc *sc) 1207 { 1208 struct aac_fibmap *fm; 1209 struct aac_command *cm; 1210 int i; 1211 1212 debug_called(1); 1213 1214 while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) { 1215 1216 TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link); 1217 /* 1218 * We check against total_fibs to handle partially 1219 * allocated blocks. 1220 */ 1221 for (i = 0; i < AAC_FIB_COUNT && sc->total_fibs--; i++) { 1222 cm = fm->aac_commands + i; 1223 bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap); 1224 } 1225 bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); 1226 bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); 1227 free(fm, M_AACBUF); 1228 } 1229 } 1230 1231 /* 1232 * Command-mapping helper function - populate this command's s/g table. 1233 */ 1234 static void 1235 aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1236 { 1237 struct aac_softc *sc; 1238 struct aac_command *cm; 1239 struct aac_fib *fib; 1240 int i; 1241 1242 debug_called(3); 1243 1244 cm = (struct aac_command *)arg; 1245 sc = cm->cm_sc; 1246 fib = cm->cm_fib; 1247 1248 /* copy into the FIB */ 1249 if (cm->cm_sgtable != NULL) { 1250 if ((cm->cm_sc->flags & AAC_FLAGS_SG_64BIT) == 0) { 1251 struct aac_sg_table *sg; 1252 sg = cm->cm_sgtable; 1253 sg->SgCount = nseg; 1254 for (i = 0; i < nseg; i++) { 1255 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1256 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1257 } 1258 /* update the FIB size for the s/g count */ 1259 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1260 } else { 1261 struct aac_sg_table64 *sg; 1262 sg = (struct aac_sg_table64 *)cm->cm_sgtable; 1263 sg->SgCount = nseg; 1264 for (i = 0; i < nseg; i++) { 1265 sg->SgEntry64[i].SgAddress = segs[i].ds_addr; 1266 sg->SgEntry64[i].SgByteCount = segs[i].ds_len; 1267 } 1268 /* update the FIB size for the s/g count */ 1269 fib->Header.Size += nseg*sizeof(struct aac_sg_entry64); 1270 } 1271 } 1272 1273 /* Fix up the address values in the FIB. Use the command array index 1274 * instead of a pointer since these fields are only 32 bits. Shift 1275 * the SenderFibAddress over to make room for the fast response bit. 1276 */ 1277 cm->cm_fib->Header.SenderFibAddress = (cm->cm_index << 1); 1278 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 1279 1280 /* save a pointer to the command for speedy reverse-lookup */ 1281 cm->cm_fib->Header.SenderData = cm->cm_index; 1282 1283 if (cm->cm_flags & AAC_CMD_DATAIN) 1284 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1285 BUS_DMASYNC_PREREAD); 1286 if (cm->cm_flags & AAC_CMD_DATAOUT) 1287 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1288 BUS_DMASYNC_PREWRITE); 1289 cm->cm_flags |= AAC_CMD_MAPPED; 1290 1291 /* put the FIB on the outbound queue */ 1292 if (aac_enqueue_fib(sc, cm->cm_queue, cm) == EBUSY) 1293 aac_requeue_ready(cm); 1294 1295 return; 1296 } 1297 1298 /* 1299 * Unmap a command from controller-visible space. 1300 */ 1301 static void 1302 aac_unmap_command(struct aac_command *cm) 1303 { 1304 struct aac_softc *sc; 1305 1306 debug_called(2); 1307 1308 sc = cm->cm_sc; 1309 1310 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1311 return; 1312 1313 if (cm->cm_datalen != 0) { 1314 if (cm->cm_flags & AAC_CMD_DATAIN) 1315 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1316 BUS_DMASYNC_POSTREAD); 1317 if (cm->cm_flags & AAC_CMD_DATAOUT) 1318 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1319 BUS_DMASYNC_POSTWRITE); 1320 1321 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1322 } 1323 cm->cm_flags &= ~AAC_CMD_MAPPED; 1324 } 1325 1326 /* 1327 * Hardware Interface 1328 */ 1329 1330 /* 1331 * Initialise the adapter. 1332 */ 1333 static void 1334 aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1335 { 1336 struct aac_softc *sc; 1337 1338 debug_called(1); 1339 1340 sc = (struct aac_softc *)arg; 1341 1342 sc->aac_common_busaddr = segs[0].ds_addr; 1343 } 1344 1345 static int 1346 aac_check_firmware(struct aac_softc *sc) 1347 { 1348 u_int32_t major, minor, options; 1349 1350 debug_called(1); 1351 1352 /* 1353 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1354 * firmware version 1.x are not compatible with this driver. 1355 */ 1356 if (sc->flags & AAC_FLAGS_PERC2QC) { 1357 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1358 NULL)) { 1359 device_printf(sc->aac_dev, 1360 "Error reading firmware version\n"); 1361 return (EIO); 1362 } 1363 1364 /* These numbers are stored as ASCII! */ 1365 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30; 1366 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30; 1367 if (major == 1) { 1368 device_printf(sc->aac_dev, 1369 "Firmware version %d.%d is not supported.\n", 1370 major, minor); 1371 return (EINVAL); 1372 } 1373 } 1374 1375 /* 1376 * Retrieve the capabilities/supported options word so we know what 1377 * work-arounds to enable. 1378 */ 1379 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) { 1380 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 1381 return (EIO); 1382 } 1383 options = AAC_GET_MAILBOX(sc, 1); 1384 sc->supported_options = options; 1385 1386 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 && 1387 (sc->flags & AAC_FLAGS_NO4GB) == 0) 1388 sc->flags |= AAC_FLAGS_4GB_WINDOW; 1389 if (options & AAC_SUPPORTED_NONDASD) 1390 sc->flags |= AAC_FLAGS_ENABLE_CAM; 1391 if ((options & AAC_SUPPORTED_SGMAP_HOST64) != 0 1392 && (sizeof(bus_addr_t) > 4)) { 1393 device_printf(sc->aac_dev, "Enabling 64-bit address support\n"); 1394 sc->flags |= AAC_FLAGS_SG_64BIT; 1395 } 1396 1397 /* Check for broken hardware that does a lower number of commands */ 1398 if ((sc->flags & AAC_FLAGS_256FIBS) == 0) 1399 sc->aac_max_fibs = AAC_MAX_FIBS; 1400 else 1401 sc->aac_max_fibs = 256; 1402 1403 return (0); 1404 } 1405 1406 static int 1407 aac_init(struct aac_softc *sc) 1408 { 1409 struct aac_adapter_init *ip; 1410 time_t then; 1411 u_int32_t code; 1412 u_int8_t *qaddr; 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 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1585 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1586 sc->aac_queues = (struct aac_queue_table *)qaddr; 1587 ip->CommHeaderAddress = sc->aac_common_busaddr + 1588 ((u_int32_t)sc->aac_queues - 1589 (u_int32_t)sc->aac_common); 1590 1591 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1592 AAC_HOST_NORM_CMD_ENTRIES; 1593 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1594 AAC_HOST_NORM_CMD_ENTRIES; 1595 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1596 AAC_HOST_HIGH_CMD_ENTRIES; 1597 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1598 AAC_HOST_HIGH_CMD_ENTRIES; 1599 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1600 AAC_ADAP_NORM_CMD_ENTRIES; 1601 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1602 AAC_ADAP_NORM_CMD_ENTRIES; 1603 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1604 AAC_ADAP_HIGH_CMD_ENTRIES; 1605 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1606 AAC_ADAP_HIGH_CMD_ENTRIES; 1607 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1608 AAC_HOST_NORM_RESP_ENTRIES; 1609 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1610 AAC_HOST_NORM_RESP_ENTRIES; 1611 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1612 AAC_HOST_HIGH_RESP_ENTRIES; 1613 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1614 AAC_HOST_HIGH_RESP_ENTRIES; 1615 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1616 AAC_ADAP_NORM_RESP_ENTRIES; 1617 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1618 AAC_ADAP_NORM_RESP_ENTRIES; 1619 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1620 AAC_ADAP_HIGH_RESP_ENTRIES; 1621 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1622 AAC_ADAP_HIGH_RESP_ENTRIES; 1623 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1624 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1625 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1626 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1627 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1628 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1629 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1630 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1631 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1632 &sc->aac_queues->qt_HostNormRespQueue[0]; 1633 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1634 &sc->aac_queues->qt_HostHighRespQueue[0]; 1635 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1636 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1637 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1638 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1639 1640 /* 1641 * Do controller-type-specific initialisation 1642 */ 1643 switch (sc->aac_hwif) { 1644 case AAC_HWIF_I960RX: 1645 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1646 break; 1647 } 1648 1649 /* 1650 * Give the init structure to the controller. 1651 */ 1652 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1653 sc->aac_common_busaddr + 1654 offsetof(struct aac_common, ac_init), 0, 0, 0, 1655 NULL)) { 1656 device_printf(sc->aac_dev, 1657 "error establishing init structure\n"); 1658 error = EIO; 1659 goto out; 1660 } 1661 1662 error = 0; 1663 out: 1664 return(error); 1665 } 1666 1667 /* 1668 * Send a synchronous command to the controller and wait for a result. 1669 */ 1670 static int 1671 aac_sync_command(struct aac_softc *sc, u_int32_t command, 1672 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1673 u_int32_t *sp) 1674 { 1675 time_t then; 1676 u_int32_t status; 1677 1678 debug_called(3); 1679 1680 /* populate the mailbox */ 1681 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1682 1683 /* ensure the sync command doorbell flag is cleared */ 1684 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1685 1686 /* then set it to signal the adapter */ 1687 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1688 1689 /* spin waiting for the command to complete */ 1690 then = time_second; 1691 do { 1692 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1693 debug(1, "timed out"); 1694 return(EIO); 1695 } 1696 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1697 1698 /* clear the completion flag */ 1699 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1700 1701 /* get the command status */ 1702 status = AAC_GET_MAILBOX(sc, 0); 1703 if (sp != NULL) 1704 *sp = status; 1705 return(0); 1706 } 1707 1708 /* 1709 * Grab the sync fib area. 1710 */ 1711 int 1712 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1713 { 1714 1715 /* 1716 * If the force flag is set, the system is shutting down, or in 1717 * trouble. Ignore the mutex. 1718 */ 1719 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1720 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1721 1722 *fib = &sc->aac_common->ac_sync_fib; 1723 1724 return (1); 1725 } 1726 1727 /* 1728 * Release the sync fib area. 1729 */ 1730 void 1731 aac_release_sync_fib(struct aac_softc *sc) 1732 { 1733 1734 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1735 } 1736 1737 /* 1738 * Send a synchronous FIB to the controller and wait for a result. 1739 */ 1740 int 1741 aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1742 struct aac_fib *fib, u_int16_t datasize) 1743 { 1744 debug_called(3); 1745 1746 if (datasize > AAC_FIB_DATASIZE) 1747 return(EINVAL); 1748 1749 /* 1750 * Set up the sync FIB 1751 */ 1752 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1753 AAC_FIBSTATE_INITIALISED | 1754 AAC_FIBSTATE_EMPTY; 1755 fib->Header.XferState |= xferstate; 1756 fib->Header.Command = command; 1757 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1758 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1759 fib->Header.SenderSize = sizeof(struct aac_fib); 1760 fib->Header.SenderFibAddress = (u_int32_t)fib; 1761 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1762 offsetof(struct aac_common, 1763 ac_sync_fib); 1764 1765 /* 1766 * Give the FIB to the controller, wait for a response. 1767 */ 1768 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1769 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1770 debug(2, "IO error"); 1771 return(EIO); 1772 } 1773 1774 return (0); 1775 } 1776 1777 /* 1778 * Adapter-space FIB queue manipulation 1779 * 1780 * Note that the queue implementation here is a little funky; neither the PI or 1781 * CI will ever be zero. This behaviour is a controller feature. 1782 */ 1783 static struct { 1784 int size; 1785 int notify; 1786 } aac_qinfo[] = { 1787 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1788 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1789 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1790 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1791 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1792 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1793 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1794 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1795 }; 1796 1797 /* 1798 * Atomically insert an entry into the nominated queue, returns 0 on success or 1799 * EBUSY if the queue is full. 1800 * 1801 * Note: it would be more efficient to defer notifying the controller in 1802 * the case where we may be inserting several entries in rapid succession, 1803 * but implementing this usefully may be difficult (it would involve a 1804 * separate queue/notify interface). 1805 */ 1806 static int 1807 aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1808 { 1809 u_int32_t pi, ci; 1810 int error; 1811 u_int32_t fib_size; 1812 u_int32_t fib_addr; 1813 1814 debug_called(3); 1815 1816 fib_size = cm->cm_fib->Header.Size; 1817 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1818 1819 /* get the producer/consumer indices */ 1820 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1821 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1822 1823 /* wrap the queue? */ 1824 if (pi >= aac_qinfo[queue].size) 1825 pi = 0; 1826 1827 /* check for queue full */ 1828 if ((pi + 1) == ci) { 1829 error = EBUSY; 1830 goto out; 1831 } 1832 1833 /* populate queue entry */ 1834 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1835 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1836 1837 /* update producer index */ 1838 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1839 1840 /* 1841 * To avoid a race with its completion interrupt, place this command on 1842 * the busy queue prior to advertising it to the controller. 1843 */ 1844 aac_enqueue_busy(cm); 1845 1846 /* notify the adapter if we know how */ 1847 if (aac_qinfo[queue].notify != 0) 1848 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1849 1850 error = 0; 1851 1852 out: 1853 return(error); 1854 } 1855 1856 /* 1857 * Atomically remove one entry from the nominated queue, returns 0 on 1858 * success or ENOENT if the queue is empty. 1859 */ 1860 static int 1861 aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1862 struct aac_fib **fib_addr) 1863 { 1864 u_int32_t pi, ci; 1865 u_int32_t fib_index; 1866 int error; 1867 int notify; 1868 1869 debug_called(3); 1870 1871 /* get the producer/consumer indices */ 1872 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1873 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1874 1875 /* check for queue empty */ 1876 if (ci == pi) { 1877 error = ENOENT; 1878 goto out; 1879 } 1880 1881 notify = 0; 1882 if (ci == pi + 1) 1883 notify++; 1884 1885 /* wrap the queue? */ 1886 if (ci >= aac_qinfo[queue].size) 1887 ci = 0; 1888 1889 /* fetch the entry */ 1890 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1891 1892 switch (queue) { 1893 case AAC_HOST_NORM_CMD_QUEUE: 1894 case AAC_HOST_HIGH_CMD_QUEUE: 1895 /* 1896 * The aq_fib_addr is only 32 bits wide so it can't be counted 1897 * on to hold an address. For AIF's, the adapter assumes 1898 * that it's giving us an address into the array of AIF fibs. 1899 * Therefore, we have to convert it to an index. 1900 */ 1901 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr / 1902 sizeof(struct aac_fib); 1903 *fib_addr = &sc->aac_common->ac_fibs[fib_index]; 1904 break; 1905 1906 case AAC_HOST_NORM_RESP_QUEUE: 1907 case AAC_HOST_HIGH_RESP_QUEUE: 1908 { 1909 struct aac_command *cm; 1910 1911 /* 1912 * As above, an index is used instead of an actual address. 1913 * Gotta shift the index to account for the fast response 1914 * bit. No other correction is needed since this value was 1915 * originally provided by the driver via the SenderFibAddress 1916 * field. 1917 */ 1918 fib_index = (sc->aac_qentries[queue] + ci)->aq_fib_addr; 1919 cm = sc->aac_commands + (fib_index >> 1); 1920 *fib_addr = cm->cm_fib; 1921 1922 /* 1923 * Is this a fast response? If it is, update the fib fields in 1924 * local memory since the whole fib isn't DMA'd back up. 1925 */ 1926 if (fib_index & 0x01) { 1927 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1928 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1929 } 1930 break; 1931 } 1932 default: 1933 panic("Invalid queue in aac_dequeue_fib()"); 1934 break; 1935 } 1936 1937 /* update consumer index */ 1938 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1939 1940 /* if we have made the queue un-full, notify the adapter */ 1941 if (notify && (aac_qinfo[queue].notify != 0)) 1942 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1943 error = 0; 1944 1945 out: 1946 return(error); 1947 } 1948 1949 /* 1950 * Put our response to an Adapter Initialed Fib on the response queue 1951 */ 1952 static int 1953 aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1954 { 1955 u_int32_t pi, ci; 1956 int error; 1957 u_int32_t fib_size; 1958 u_int32_t fib_addr; 1959 1960 debug_called(1); 1961 1962 /* Tell the adapter where the FIB is */ 1963 fib_size = fib->Header.Size; 1964 fib_addr = fib->Header.SenderFibAddress; 1965 fib->Header.ReceiverFibAddress = fib_addr; 1966 1967 /* get the producer/consumer indices */ 1968 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1969 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1970 1971 /* wrap the queue? */ 1972 if (pi >= aac_qinfo[queue].size) 1973 pi = 0; 1974 1975 /* check for queue full */ 1976 if ((pi + 1) == ci) { 1977 error = EBUSY; 1978 goto out; 1979 } 1980 1981 /* populate queue entry */ 1982 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1983 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1984 1985 /* update producer index */ 1986 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1987 1988 /* notify the adapter if we know how */ 1989 if (aac_qinfo[queue].notify != 0) 1990 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1991 1992 error = 0; 1993 1994 out: 1995 return(error); 1996 } 1997 1998 /* 1999 * Check for commands that have been outstanding for a suspiciously long time, 2000 * and complain about them. 2001 */ 2002 static void 2003 aac_timeout(struct aac_softc *sc) 2004 { 2005 struct aac_command *cm; 2006 time_t deadline; 2007 2008 /* 2009 * Traverse the busy command list, bitch about late commands once 2010 * only. 2011 */ 2012 deadline = time_second - AAC_CMD_TIMEOUT; 2013 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 2014 if ((cm->cm_timestamp < deadline) 2015 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 2016 cm->cm_flags |= AAC_CMD_TIMEDOUT; 2017 device_printf(sc->aac_dev, 2018 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 2019 cm, (int)(time_second-cm->cm_timestamp)); 2020 AAC_PRINT_FIB(sc, cm->cm_fib); 2021 } 2022 } 2023 2024 return; 2025 } 2026 2027 /* 2028 * Interface Function Vectors 2029 */ 2030 2031 /* 2032 * Read the current firmware status word. 2033 */ 2034 static int 2035 aac_sa_get_fwstatus(struct aac_softc *sc) 2036 { 2037 debug_called(3); 2038 2039 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 2040 } 2041 2042 static int 2043 aac_rx_get_fwstatus(struct aac_softc *sc) 2044 { 2045 debug_called(3); 2046 2047 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2048 } 2049 2050 static int 2051 aac_fa_get_fwstatus(struct aac_softc *sc) 2052 { 2053 int val; 2054 2055 debug_called(3); 2056 2057 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2058 return (val); 2059 } 2060 2061 /* 2062 * Notify the controller of a change in a given queue 2063 */ 2064 2065 static void 2066 aac_sa_qnotify(struct aac_softc *sc, int qbit) 2067 { 2068 debug_called(3); 2069 2070 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2071 } 2072 2073 static void 2074 aac_rx_qnotify(struct aac_softc *sc, int qbit) 2075 { 2076 debug_called(3); 2077 2078 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2079 } 2080 2081 static void 2082 aac_fa_qnotify(struct aac_softc *sc, int qbit) 2083 { 2084 debug_called(3); 2085 2086 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2087 AAC_FA_HACK(sc); 2088 } 2089 2090 /* 2091 * Get the interrupt reason bits 2092 */ 2093 static int 2094 aac_sa_get_istatus(struct aac_softc *sc) 2095 { 2096 debug_called(3); 2097 2098 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2099 } 2100 2101 static int 2102 aac_rx_get_istatus(struct aac_softc *sc) 2103 { 2104 debug_called(3); 2105 2106 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2107 } 2108 2109 static int 2110 aac_fa_get_istatus(struct aac_softc *sc) 2111 { 2112 int val; 2113 2114 debug_called(3); 2115 2116 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2117 return (val); 2118 } 2119 2120 /* 2121 * Clear some interrupt reason bits 2122 */ 2123 static void 2124 aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2125 { 2126 debug_called(3); 2127 2128 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2129 } 2130 2131 static void 2132 aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2133 { 2134 debug_called(3); 2135 2136 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2137 } 2138 2139 static void 2140 aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2141 { 2142 debug_called(3); 2143 2144 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2145 AAC_FA_HACK(sc); 2146 } 2147 2148 /* 2149 * Populate the mailbox and set the command word 2150 */ 2151 static void 2152 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2153 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2154 { 2155 debug_called(4); 2156 2157 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2158 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2159 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2160 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2161 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2162 } 2163 2164 static void 2165 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2166 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2167 { 2168 debug_called(4); 2169 2170 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2171 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2172 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2173 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2174 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2175 } 2176 2177 static void 2178 aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2179 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2180 { 2181 debug_called(4); 2182 2183 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2184 AAC_FA_HACK(sc); 2185 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2186 AAC_FA_HACK(sc); 2187 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2188 AAC_FA_HACK(sc); 2189 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2190 AAC_FA_HACK(sc); 2191 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2192 AAC_FA_HACK(sc); 2193 } 2194 2195 /* 2196 * Fetch the immediate command status word 2197 */ 2198 static int 2199 aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2200 { 2201 debug_called(4); 2202 2203 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2204 } 2205 2206 static int 2207 aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2208 { 2209 debug_called(4); 2210 2211 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2212 } 2213 2214 static int 2215 aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2216 { 2217 int val; 2218 2219 debug_called(4); 2220 2221 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2222 return (val); 2223 } 2224 2225 /* 2226 * Set/clear interrupt masks 2227 */ 2228 static void 2229 aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2230 { 2231 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2232 2233 if (enable) { 2234 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2235 } else { 2236 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2237 } 2238 } 2239 2240 static void 2241 aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2242 { 2243 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2244 2245 if (enable) { 2246 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2247 } else { 2248 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2249 } 2250 } 2251 2252 static void 2253 aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2254 { 2255 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2256 2257 if (enable) { 2258 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2259 AAC_FA_HACK(sc); 2260 } else { 2261 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2262 AAC_FA_HACK(sc); 2263 } 2264 } 2265 2266 /* 2267 * Debugging and Diagnostics 2268 */ 2269 2270 /* 2271 * Print some information about the controller. 2272 */ 2273 static void 2274 aac_describe_controller(struct aac_softc *sc) 2275 { 2276 struct aac_fib *fib; 2277 struct aac_adapter_info *info; 2278 2279 debug_called(2); 2280 2281 aac_alloc_sync_fib(sc, &fib, 0); 2282 2283 fib->data[0] = 0; 2284 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2285 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2286 aac_release_sync_fib(sc); 2287 return; 2288 } 2289 info = (struct aac_adapter_info *)&fib->data[0]; 2290 2291 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2292 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2293 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2294 aac_describe_code(aac_battery_platform, 2295 info->batteryPlatform)); 2296 2297 /* save the kernel revision structure for later use */ 2298 sc->aac_revision = info->KernelRevision; 2299 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2300 info->KernelRevision.external.comp.major, 2301 info->KernelRevision.external.comp.minor, 2302 info->KernelRevision.external.comp.dash, 2303 info->KernelRevision.buildNumber, 2304 (u_int32_t)(info->SerialNumber & 0xffffff)); 2305 2306 aac_release_sync_fib(sc); 2307 2308 if (1 || bootverbose) { 2309 device_printf(sc->aac_dev, "Supported Options=%b\n", 2310 sc->supported_options, 2311 "\20" 2312 "\1SNAPSHOT" 2313 "\2CLUSTERS" 2314 "\3WCACHE" 2315 "\4DATA64" 2316 "\5HOSTTIME" 2317 "\6RAID50" 2318 "\7WINDOW4GB" 2319 "\10SCSIUPGD" 2320 "\11SOFTERR" 2321 "\12NORECOND" 2322 "\13SGMAP64" 2323 "\14ALARM" 2324 "\15NONDASD"); 2325 } 2326 } 2327 2328 /* 2329 * Look up a text description of a numeric error code and return a pointer to 2330 * same. 2331 */ 2332 static char * 2333 aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2334 { 2335 int i; 2336 2337 for (i = 0; table[i].string != NULL; i++) 2338 if (table[i].code == code) 2339 return(table[i].string); 2340 return(table[i + 1].string); 2341 } 2342 2343 /* 2344 * Management Interface 2345 */ 2346 2347 static int 2348 aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2349 { 2350 struct aac_softc *sc; 2351 2352 debug_called(2); 2353 2354 sc = dev->si_drv1; 2355 2356 /* Check to make sure the device isn't already open */ 2357 if (sc->aac_state & AAC_STATE_OPEN) { 2358 return EBUSY; 2359 } 2360 sc->aac_state |= AAC_STATE_OPEN; 2361 2362 return 0; 2363 } 2364 2365 static int 2366 aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2367 { 2368 struct aac_softc *sc; 2369 2370 debug_called(2); 2371 2372 sc = dev->si_drv1; 2373 2374 /* Mark this unit as no longer open */ 2375 sc->aac_state &= ~AAC_STATE_OPEN; 2376 2377 return 0; 2378 } 2379 2380 static int 2381 aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2382 { 2383 union aac_statrequest *as; 2384 struct aac_softc *sc; 2385 int error = 0; 2386 int i; 2387 2388 debug_called(2); 2389 2390 as = (union aac_statrequest *)arg; 2391 sc = dev->si_drv1; 2392 2393 switch (cmd) { 2394 case AACIO_STATS: 2395 switch (as->as_item) { 2396 case AACQ_FREE: 2397 case AACQ_BIO: 2398 case AACQ_READY: 2399 case AACQ_BUSY: 2400 case AACQ_COMPLETE: 2401 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2402 sizeof(struct aac_qstat)); 2403 break; 2404 default: 2405 error = ENOENT; 2406 break; 2407 } 2408 break; 2409 2410 case FSACTL_SENDFIB: 2411 arg = *(caddr_t*)arg; 2412 case FSACTL_LNX_SENDFIB: 2413 debug(1, "FSACTL_SENDFIB"); 2414 error = aac_ioctl_sendfib(sc, arg); 2415 break; 2416 case FSACTL_AIF_THREAD: 2417 case FSACTL_LNX_AIF_THREAD: 2418 debug(1, "FSACTL_AIF_THREAD"); 2419 error = EINVAL; 2420 break; 2421 case FSACTL_OPEN_GET_ADAPTER_FIB: 2422 arg = *(caddr_t*)arg; 2423 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2424 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2425 /* 2426 * Pass the caller out an AdapterFibContext. 2427 * 2428 * Note that because we only support one opener, we 2429 * basically ignore this. Set the caller's context to a magic 2430 * number just in case. 2431 * 2432 * The Linux code hands the driver a pointer into kernel space, 2433 * and then trusts it when the caller hands it back. Aiee! 2434 * Here, we give it the proc pointer of the per-adapter aif 2435 * thread. It's only used as a sanity check in other calls. 2436 */ 2437 i = (int)sc->aifthread; 2438 error = copyout(&i, arg, sizeof(i)); 2439 break; 2440 case FSACTL_GET_NEXT_ADAPTER_FIB: 2441 arg = *(caddr_t*)arg; 2442 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2443 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2444 error = aac_getnext_aif(sc, arg); 2445 break; 2446 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2447 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2448 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2449 /* don't do anything here */ 2450 break; 2451 case FSACTL_MINIPORT_REV_CHECK: 2452 arg = *(caddr_t*)arg; 2453 case FSACTL_LNX_MINIPORT_REV_CHECK: 2454 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2455 error = aac_rev_check(sc, arg); 2456 break; 2457 case FSACTL_QUERY_DISK: 2458 arg = *(caddr_t*)arg; 2459 case FSACTL_LNX_QUERY_DISK: 2460 debug(1, "FSACTL_QUERY_DISK"); 2461 error = aac_query_disk(sc, arg); 2462 break; 2463 case FSACTL_DELETE_DISK: 2464 case FSACTL_LNX_DELETE_DISK: 2465 /* 2466 * We don't trust the underland to tell us when to delete a 2467 * container, rather we rely on an AIF coming from the 2468 * controller 2469 */ 2470 error = 0; 2471 break; 2472 default: 2473 debug(1, "unsupported cmd 0x%lx\n", cmd); 2474 error = EINVAL; 2475 break; 2476 } 2477 return(error); 2478 } 2479 2480 static int 2481 aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2482 { 2483 struct aac_softc *sc; 2484 int revents; 2485 2486 sc = dev->si_drv1; 2487 revents = 0; 2488 2489 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2490 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2491 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2492 revents |= poll_events & (POLLIN | POLLRDNORM); 2493 } 2494 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2495 2496 if (revents == 0) { 2497 if (poll_events & (POLLIN | POLLRDNORM)) 2498 selrecord(td, &sc->rcv_select); 2499 } 2500 2501 return (revents); 2502 } 2503 2504 /* 2505 * Send a FIB supplied from userspace 2506 */ 2507 static int 2508 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2509 { 2510 struct aac_command *cm; 2511 int size, error; 2512 2513 debug_called(2); 2514 2515 cm = NULL; 2516 2517 /* 2518 * Get a command 2519 */ 2520 AAC_LOCK_ACQUIRE(&sc->aac_io_lock); 2521 if (aac_alloc_command(sc, &cm)) { 2522 error = EBUSY; 2523 goto out; 2524 } 2525 2526 /* 2527 * Fetch the FIB header, then re-copy to get data as well. 2528 */ 2529 if ((error = copyin(ufib, cm->cm_fib, 2530 sizeof(struct aac_fib_header))) != 0) 2531 goto out; 2532 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2533 if (size > sizeof(struct aac_fib)) { 2534 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2535 size, sizeof(struct aac_fib)); 2536 size = sizeof(struct aac_fib); 2537 } 2538 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2539 goto out; 2540 cm->cm_fib->Header.Size = size; 2541 cm->cm_timestamp = time_second; 2542 2543 /* 2544 * Pass the FIB to the controller, wait for it to complete. 2545 */ 2546 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2547 device_printf(sc->aac_dev, 2548 "aac_wait_command return %d\n", error); 2549 goto out; 2550 } 2551 2552 /* 2553 * Copy the FIB and data back out to the caller. 2554 */ 2555 size = cm->cm_fib->Header.Size; 2556 if (size > sizeof(struct aac_fib)) { 2557 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2558 size, sizeof(struct aac_fib)); 2559 size = sizeof(struct aac_fib); 2560 } 2561 error = copyout(cm->cm_fib, ufib, size); 2562 2563 out: 2564 if (cm != NULL) { 2565 aac_release_command(cm); 2566 } 2567 2568 AAC_LOCK_RELEASE(&sc->aac_io_lock); 2569 return(error); 2570 } 2571 2572 /* 2573 * Handle an AIF sent to us by the controller; queue it for later reference. 2574 * If the queue fills up, then drop the older entries. 2575 */ 2576 static void 2577 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2578 { 2579 struct aac_aif_command *aif; 2580 struct aac_container *co, *co_next; 2581 struct aac_mntinfo *mi; 2582 struct aac_mntinforesp *mir = NULL; 2583 u_int16_t rsize; 2584 int next, found; 2585 int count = 0, added = 0, i = 0; 2586 2587 debug_called(2); 2588 2589 aif = (struct aac_aif_command*)&fib->data[0]; 2590 aac_print_aif(sc, aif); 2591 2592 /* Is it an event that we should care about? */ 2593 switch (aif->command) { 2594 case AifCmdEventNotify: 2595 switch (aif->data.EN.type) { 2596 case AifEnAddContainer: 2597 case AifEnDeleteContainer: 2598 /* 2599 * A container was added or deleted, but the message 2600 * doesn't tell us anything else! Re-enumerate the 2601 * containers and sort things out. 2602 */ 2603 aac_alloc_sync_fib(sc, &fib, 0); 2604 mi = (struct aac_mntinfo *)&fib->data[0]; 2605 do { 2606 /* 2607 * Ask the controller for its containers one at 2608 * a time. 2609 * XXX What if the controller's list changes 2610 * midway through this enumaration? 2611 * XXX This should be done async. 2612 */ 2613 bzero(mi, sizeof(struct aac_mntinfo)); 2614 mi->Command = VM_NameServe; 2615 mi->MntType = FT_FILESYS; 2616 mi->MntCount = i; 2617 rsize = sizeof(mir); 2618 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2619 sizeof(struct aac_mntinfo))) { 2620 printf("Error probing container %d\n", 2621 i); 2622 continue; 2623 } 2624 mir = (struct aac_mntinforesp *)&fib->data[0]; 2625 /* XXX Need to check if count changed */ 2626 count = mir->MntRespCount; 2627 /* 2628 * Check the container against our list. 2629 * co->co_found was already set to 0 in a 2630 * previous run. 2631 */ 2632 if ((mir->Status == ST_OK) && 2633 (mir->MntTable[0].VolType != CT_NONE)) { 2634 found = 0; 2635 TAILQ_FOREACH(co, 2636 &sc->aac_container_tqh, 2637 co_link) { 2638 if (co->co_mntobj.ObjectId == 2639 mir->MntTable[0].ObjectId) { 2640 co->co_found = 1; 2641 found = 1; 2642 break; 2643 } 2644 } 2645 /* 2646 * If the container matched, continue 2647 * in the list. 2648 */ 2649 if (found) { 2650 i++; 2651 continue; 2652 } 2653 2654 /* 2655 * This is a new container. Do all the 2656 * appropriate things to set it up. 2657 */ 2658 aac_add_container(sc, mir, 1); 2659 added = 1; 2660 } 2661 i++; 2662 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 2663 aac_release_sync_fib(sc); 2664 2665 /* 2666 * Go through our list of containers and see which ones 2667 * were not marked 'found'. Since the controller didn't 2668 * list them they must have been deleted. Do the 2669 * appropriate steps to destroy the device. Also reset 2670 * the co->co_found field. 2671 */ 2672 co = TAILQ_FIRST(&sc->aac_container_tqh); 2673 while (co != NULL) { 2674 if (co->co_found == 0) { 2675 device_delete_child(sc->aac_dev, 2676 co->co_disk); 2677 co_next = TAILQ_NEXT(co, co_link); 2678 AAC_LOCK_ACQUIRE(&sc-> 2679 aac_container_lock); 2680 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2681 co_link); 2682 AAC_LOCK_RELEASE(&sc-> 2683 aac_container_lock); 2684 FREE(co, M_AACBUF); 2685 co = co_next; 2686 } else { 2687 co->co_found = 0; 2688 co = TAILQ_NEXT(co, co_link); 2689 } 2690 } 2691 2692 /* Attach the newly created containers */ 2693 if (added) 2694 bus_generic_attach(sc->aac_dev); 2695 2696 break; 2697 2698 default: 2699 break; 2700 } 2701 2702 default: 2703 break; 2704 } 2705 2706 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2707 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2708 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2709 if (next != sc->aac_aifq_tail) { 2710 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2711 sc->aac_aifq_head = next; 2712 2713 /* On the off chance that someone is sleeping for an aif... */ 2714 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2715 wakeup(sc->aac_aifq); 2716 /* Wakeup any poll()ers */ 2717 selwakeup(&sc->rcv_select); 2718 } 2719 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2720 2721 return; 2722 } 2723 2724 /* 2725 * Return the Revision of the driver to userspace and check to see if the 2726 * userspace app is possibly compatible. This is extremely bogus since 2727 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2728 * returning what the card reported. 2729 */ 2730 static int 2731 aac_rev_check(struct aac_softc *sc, caddr_t udata) 2732 { 2733 struct aac_rev_check rev_check; 2734 struct aac_rev_check_resp rev_check_resp; 2735 int error = 0; 2736 2737 debug_called(2); 2738 2739 /* 2740 * Copyin the revision struct from userspace 2741 */ 2742 if ((error = copyin(udata, (caddr_t)&rev_check, 2743 sizeof(struct aac_rev_check))) != 0) { 2744 return error; 2745 } 2746 2747 debug(2, "Userland revision= %d\n", 2748 rev_check.callingRevision.buildNumber); 2749 2750 /* 2751 * Doctor up the response struct. 2752 */ 2753 rev_check_resp.possiblyCompatible = 1; 2754 rev_check_resp.adapterSWRevision.external.ul = 2755 sc->aac_revision.external.ul; 2756 rev_check_resp.adapterSWRevision.buildNumber = 2757 sc->aac_revision.buildNumber; 2758 2759 return(copyout((caddr_t)&rev_check_resp, udata, 2760 sizeof(struct aac_rev_check_resp))); 2761 } 2762 2763 /* 2764 * Pass the caller the next AIF in their queue 2765 */ 2766 static int 2767 aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2768 { 2769 struct get_adapter_fib_ioctl agf; 2770 int error; 2771 2772 debug_called(2); 2773 2774 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2775 2776 /* 2777 * Check the magic number that we gave the caller. 2778 */ 2779 if (agf.AdapterFibContext != (int)sc->aifthread) { 2780 error = EFAULT; 2781 } else { 2782 error = aac_return_aif(sc, agf.AifFib); 2783 if ((error == EAGAIN) && (agf.Wait)) { 2784 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2785 while (error == EAGAIN) { 2786 error = tsleep(sc->aac_aifq, PRIBIO | 2787 PCATCH, "aacaif", 0); 2788 if (error == 0) 2789 error = aac_return_aif(sc, 2790 agf.AifFib); 2791 } 2792 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2793 } 2794 } 2795 } 2796 return(error); 2797 } 2798 2799 /* 2800 * Hand the next AIF off the top of the queue out to userspace. 2801 */ 2802 static int 2803 aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2804 { 2805 int error; 2806 2807 debug_called(2); 2808 2809 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2810 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2811 error = EAGAIN; 2812 } else { 2813 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2814 sizeof(struct aac_aif_command)); 2815 if (error) 2816 device_printf(sc->aac_dev, 2817 "aac_return_aif: copyout returned %d\n", error); 2818 if (!error) 2819 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2820 AAC_AIFQ_LENGTH; 2821 } 2822 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2823 return(error); 2824 } 2825 2826 /* 2827 * Give the userland some information about the container. The AAC arch 2828 * expects the driver to be a SCSI passthrough type driver, so it expects 2829 * the containers to have b:t:l numbers. Fake it. 2830 */ 2831 static int 2832 aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2833 { 2834 struct aac_query_disk query_disk; 2835 struct aac_container *co; 2836 struct aac_disk *disk; 2837 int error, id; 2838 2839 debug_called(2); 2840 2841 disk = NULL; 2842 2843 error = copyin(uptr, (caddr_t)&query_disk, 2844 sizeof(struct aac_query_disk)); 2845 if (error) 2846 return (error); 2847 2848 id = query_disk.ContainerNumber; 2849 if (id == -1) 2850 return (EINVAL); 2851 2852 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2853 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2854 if (co->co_mntobj.ObjectId == id) 2855 break; 2856 } 2857 2858 if (co == NULL) { 2859 query_disk.Valid = 0; 2860 query_disk.Locked = 0; 2861 query_disk.Deleted = 1; /* XXX is this right? */ 2862 } else { 2863 disk = device_get_softc(co->co_disk); 2864 query_disk.Valid = 1; 2865 query_disk.Locked = 2866 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2867 query_disk.Deleted = 0; 2868 query_disk.Bus = device_get_unit(sc->aac_dev); 2869 query_disk.Target = disk->unit; 2870 query_disk.Lun = 0; 2871 query_disk.UnMapped = 0; 2872 sprintf(&query_disk.diskDeviceName[0], "%s%d", 2873 disk->ad_disk.d_name, disk->ad_disk.d_unit); 2874 } 2875 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2876 2877 error = copyout((caddr_t)&query_disk, uptr, 2878 sizeof(struct aac_query_disk)); 2879 2880 return (error); 2881 } 2882 2883 static void 2884 aac_get_bus_info(struct aac_softc *sc) 2885 { 2886 struct aac_fib *fib; 2887 struct aac_ctcfg *c_cmd; 2888 struct aac_ctcfg_resp *c_resp; 2889 struct aac_vmioctl *vmi; 2890 struct aac_vmi_businf_resp *vmi_resp; 2891 struct aac_getbusinf businfo; 2892 struct aac_sim *caminf; 2893 device_t child; 2894 int i, found, error; 2895 2896 aac_alloc_sync_fib(sc, &fib, 0); 2897 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2898 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2899 2900 c_cmd->Command = VM_ContainerConfig; 2901 c_cmd->cmd = CT_GET_SCSI_METHOD; 2902 c_cmd->param = 0; 2903 2904 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2905 sizeof(struct aac_ctcfg)); 2906 if (error) { 2907 device_printf(sc->aac_dev, "Error %d sending " 2908 "VM_ContainerConfig command\n", error); 2909 aac_release_sync_fib(sc); 2910 return; 2911 } 2912 2913 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2914 if (c_resp->Status != ST_OK) { 2915 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2916 c_resp->Status); 2917 aac_release_sync_fib(sc); 2918 return; 2919 } 2920 2921 sc->scsi_method_id = c_resp->param; 2922 2923 vmi = (struct aac_vmioctl *)&fib->data[0]; 2924 bzero(vmi, sizeof(struct aac_vmioctl)); 2925 2926 vmi->Command = VM_Ioctl; 2927 vmi->ObjType = FT_DRIVE; 2928 vmi->MethId = sc->scsi_method_id; 2929 vmi->ObjId = 0; 2930 vmi->IoctlCmd = GetBusInfo; 2931 2932 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2933 sizeof(struct aac_vmioctl)); 2934 if (error) { 2935 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2936 error); 2937 aac_release_sync_fib(sc); 2938 return; 2939 } 2940 2941 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2942 if (vmi_resp->Status != ST_OK) { 2943 device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", 2944 vmi_resp->Status); 2945 aac_release_sync_fib(sc); 2946 return; 2947 } 2948 2949 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2950 aac_release_sync_fib(sc); 2951 2952 found = 0; 2953 for (i = 0; i < businfo.BusCount; i++) { 2954 if (businfo.BusValid[i] != AAC_BUS_VALID) 2955 continue; 2956 2957 caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), 2958 M_AACBUF, M_NOWAIT | M_ZERO); 2959 if (caminf == NULL) 2960 continue; 2961 2962 child = device_add_child(sc->aac_dev, "aacp", -1); 2963 if (child == NULL) { 2964 device_printf(sc->aac_dev, "device_add_child failed\n"); 2965 continue; 2966 } 2967 2968 caminf->TargetsPerBus = businfo.TargetsPerBus; 2969 caminf->BusNumber = i; 2970 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2971 caminf->aac_sc = sc; 2972 caminf->sim_dev = child; 2973 2974 device_set_ivars(child, caminf); 2975 device_set_desc(child, "SCSI Passthrough Bus"); 2976 TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); 2977 2978 found = 1; 2979 } 2980 2981 if (found) 2982 bus_generic_attach(sc->aac_dev); 2983 2984 return; 2985 } 2986