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: src/sys/dev/aac/aac.c,v 1.9.2.14 2003/04/08 13:22:08 scottl Exp $ 30 * $DragonFly: src/sys/dev/raid/aac/aac.c,v 1.32 2007/07/11 23:46:58 dillon Exp $ 31 */ 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 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005 48 #include <sys/selinfo.h> 49 #else 50 #include <sys/select.h> 51 #endif 52 53 #include "aac_compat.h" 54 55 #include <sys/bus.h> 56 #include <sys/conf.h> 57 #include <sys/devicestat.h> 58 #include <sys/disk.h> 59 #include <sys/signalvar.h> 60 #include <sys/time.h> 61 #include <sys/eventhandler.h> 62 63 #include "aacreg.h" 64 #include "aac_ioctl.h" 65 #include "aacvar.h" 66 #include "aac_tables.h" 67 #include "aac_cam.h" 68 69 static void aac_startup(void *arg); 70 static void aac_add_container(struct aac_softc *sc, 71 struct aac_mntinforesp *mir, int f); 72 static void aac_get_bus_info(struct aac_softc *sc); 73 74 /* Command Processing */ 75 static void aac_timeout(void *ssc); 76 static int aac_start(struct aac_command *cm); 77 static void aac_complete(void *context, int pending); 78 static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 79 static void aac_bio_complete(struct aac_command *cm); 80 static int aac_wait_command(struct aac_command *cm, int timeout); 81 static void aac_host_command(struct aac_softc *sc); 82 static void aac_host_response(struct aac_softc *sc); 83 84 /* Command Buffer Management */ 85 static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 86 int nseg, int error); 87 static int aac_alloc_commands(struct aac_softc *sc); 88 static void aac_free_commands(struct aac_softc *sc); 89 static void aac_map_command(struct aac_command *cm); 90 static void aac_unmap_command(struct aac_command *cm); 91 92 /* Hardware Interface */ 93 static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 94 int error); 95 static int aac_check_firmware(struct aac_softc *sc); 96 static int aac_init(struct aac_softc *sc); 97 static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 98 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 99 u_int32_t arg3, u_int32_t *sp); 100 static int aac_enqueue_fib(struct aac_softc *sc, int queue, 101 struct aac_command *cm); 102 static int aac_dequeue_fib(struct aac_softc *sc, int queue, 103 u_int32_t *fib_size, struct aac_fib **fib_addr); 104 static int aac_enqueue_response(struct aac_softc *sc, int queue, 105 struct aac_fib *fib); 106 107 /* Falcon/PPC interface */ 108 static int aac_fa_get_fwstatus(struct aac_softc *sc); 109 static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 110 static int aac_fa_get_istatus(struct aac_softc *sc); 111 static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 112 static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 113 u_int32_t arg0, u_int32_t arg1, 114 u_int32_t arg2, u_int32_t arg3); 115 static int aac_fa_get_mailbox(struct aac_softc *sc, int mb); 116 static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 117 118 struct aac_interface aac_fa_interface = { 119 aac_fa_get_fwstatus, 120 aac_fa_qnotify, 121 aac_fa_get_istatus, 122 aac_fa_clear_istatus, 123 aac_fa_set_mailbox, 124 aac_fa_get_mailbox, 125 aac_fa_set_interrupts 126 }; 127 128 /* StrongARM interface */ 129 static int aac_sa_get_fwstatus(struct aac_softc *sc); 130 static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 131 static int aac_sa_get_istatus(struct aac_softc *sc); 132 static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 133 static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 134 u_int32_t arg0, u_int32_t arg1, 135 u_int32_t arg2, u_int32_t arg3); 136 static int aac_sa_get_mailbox(struct aac_softc *sc, int mb); 137 static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 138 139 struct aac_interface aac_sa_interface = { 140 aac_sa_get_fwstatus, 141 aac_sa_qnotify, 142 aac_sa_get_istatus, 143 aac_sa_clear_istatus, 144 aac_sa_set_mailbox, 145 aac_sa_get_mailbox, 146 aac_sa_set_interrupts 147 }; 148 149 /* i960Rx interface */ 150 static int aac_rx_get_fwstatus(struct aac_softc *sc); 151 static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 152 static int aac_rx_get_istatus(struct aac_softc *sc); 153 static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 154 static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 155 u_int32_t arg0, u_int32_t arg1, 156 u_int32_t arg2, u_int32_t arg3); 157 static int aac_rx_get_mailbox(struct aac_softc *sc, int mb); 158 static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 159 160 struct aac_interface aac_rx_interface = { 161 aac_rx_get_fwstatus, 162 aac_rx_qnotify, 163 aac_rx_get_istatus, 164 aac_rx_clear_istatus, 165 aac_rx_set_mailbox, 166 aac_rx_get_mailbox, 167 aac_rx_set_interrupts 168 }; 169 170 /* Debugging and Diagnostics */ 171 static void aac_describe_controller(struct aac_softc *sc); 172 static char *aac_describe_code(struct aac_code_lookup *table, 173 u_int32_t code); 174 175 /* Management Interface */ 176 static d_open_t aac_open; 177 static d_close_t aac_close; 178 static d_ioctl_t aac_ioctl; 179 static d_poll_t aac_poll; 180 static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 181 static void aac_handle_aif(struct aac_softc *sc, 182 struct aac_fib *fib); 183 static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 184 static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 185 static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 186 static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 187 188 #define AAC_CDEV_MAJOR 150 189 190 static struct dev_ops aac_ops = { 191 { "aac", AAC_CDEV_MAJOR, 0 }, 192 .d_open = aac_open, 193 .d_close = aac_close, 194 .d_ioctl = aac_ioctl, 195 .d_poll = aac_poll, 196 }; 197 198 DECLARE_DUMMY_MODULE(aac); 199 200 MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 201 202 /* sysctl node */ 203 SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 204 205 /* 206 * Device Interface 207 */ 208 209 /* 210 * Initialise the controller and softc 211 */ 212 int 213 aac_attach(struct aac_softc *sc) 214 { 215 int error, unit; 216 217 debug_called(1); 218 callout_init(&sc->aac_watchdog); 219 220 /* 221 * Initialise per-controller queues. 222 */ 223 aac_initq_free(sc); 224 aac_initq_ready(sc); 225 aac_initq_busy(sc); 226 aac_initq_complete(sc); 227 aac_initq_bio(sc); 228 229 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005 230 /* 231 * Initialise command-completion task. 232 */ 233 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 234 #endif 235 236 /* disable interrupts before we enable anything */ 237 AAC_MASK_INTERRUPTS(sc); 238 239 /* mark controller as suspended until we get ourselves organised */ 240 sc->aac_state |= AAC_STATE_SUSPEND; 241 242 /* 243 * Check that the firmware on the card is supported. 244 */ 245 if ((error = aac_check_firmware(sc)) != 0) 246 return(error); 247 248 /* Init the sync fib lock */ 249 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 250 251 /* 252 * Initialise the adapter. 253 */ 254 if ((error = aac_init(sc)) != 0) 255 return(error); 256 257 /* 258 * Print a little information about the controller. 259 */ 260 aac_describe_controller(sc); 261 262 /* 263 * Register to probe our containers later. 264 */ 265 TAILQ_INIT(&sc->aac_container_tqh); 266 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 267 268 /* 269 * Lock for the AIF queue 270 */ 271 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 272 273 sc->aac_ich.ich_func = aac_startup; 274 sc->aac_ich.ich_arg = sc; 275 sc->aac_ich.ich_desc = "aac"; 276 if (config_intrhook_establish(&sc->aac_ich) != 0) { 277 device_printf(sc->aac_dev, 278 "can't establish configuration hook\n"); 279 return(ENXIO); 280 } 281 282 /* 283 * Make the control device. 284 */ 285 unit = device_get_unit(sc->aac_dev); 286 dev_ops_add(&aac_ops, -1, unit); 287 sc->aac_dev_t = make_dev(&aac_ops, unit, UID_ROOT, GID_WHEEL, 0644, 288 "aac%d", unit); 289 #if defined(__FreeBSD__) && __FreeBSD_version > 500005 290 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 291 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 292 #endif 293 sc->aac_dev_t->si_drv1 = sc; 294 reference_dev(sc->aac_dev_t); 295 296 /* Create the AIF thread */ 297 #if defined(__FreeBSD__) && __FreeBSD_version > 500005 298 if (kthread_create((void(*)(void *))aac_host_command, sc, 299 &sc->aifthread, 0, "aac%daif", unit)) 300 #else 301 if (kthread_create((void(*)(void *))aac_host_command, sc, 302 &sc->aifthread, "aac%daif", unit)) 303 #endif 304 panic("Could not create AIF thread\n"); 305 306 /* Register the shutdown method to only be called post-dump */ 307 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, aac_shutdown, sc->aac_dev, 308 SHUTDOWN_PRI_DRIVER)) == NULL) 309 device_printf(sc->aac_dev, "shutdown event registration failed\n"); 310 311 /* Register with CAM for the non-DASD devices */ 312 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0) 313 aac_get_bus_info(sc); 314 315 return(0); 316 } 317 318 /* 319 * Probe for containers, create disks. 320 */ 321 static void 322 aac_startup(void *arg) 323 { 324 struct aac_softc *sc; 325 struct aac_fib *fib; 326 struct aac_mntinfo *mi; 327 struct aac_mntinforesp *mir = NULL; 328 int count = 0, i = 0; 329 330 debug_called(1); 331 332 sc = (struct aac_softc *)arg; 333 334 /* disconnect ourselves from the intrhook chain */ 335 config_intrhook_disestablish(&sc->aac_ich); 336 337 aac_alloc_sync_fib(sc, &fib, 0); 338 mi = (struct aac_mntinfo *)&fib->data[0]; 339 340 /* loop over possible containers */ 341 do { 342 /* request information on this container */ 343 bzero(mi, sizeof(struct aac_mntinfo)); 344 mi->Command = VM_NameServe; 345 mi->MntType = FT_FILESYS; 346 mi->MntCount = i; 347 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 348 sizeof(struct aac_mntinfo))) { 349 device_printf(sc->aac_dev, 350 "error probing container %d", i); 351 352 continue; 353 } 354 355 mir = (struct aac_mntinforesp *)&fib->data[0]; 356 /* XXX Need to check if count changed */ 357 count = mir->MntRespCount; 358 aac_add_container(sc, mir, 0); 359 i++; 360 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 361 362 aac_release_sync_fib(sc); 363 364 /* poke the bus to actually attach the child devices */ 365 if (bus_generic_attach(sc->aac_dev)) 366 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 367 368 /* mark the controller up */ 369 sc->aac_state &= ~AAC_STATE_SUSPEND; 370 371 /* enable interrupts now */ 372 AAC_UNMASK_INTERRUPTS(sc); 373 374 /* enable the timeout watchdog */ 375 callout_reset(&sc->aac_watchdog, AAC_PERIODIC_INTERVAL * hz, 376 aac_timeout, sc); 377 } 378 379 /* 380 * Create a device to respresent a new container 381 */ 382 static void 383 aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 384 { 385 struct aac_container *co; 386 device_t child; 387 388 /* 389 * Check container volume type for validity. Note that many of 390 * the possible types may never show up. 391 */ 392 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 393 MALLOC(co, struct aac_container *, sizeof *co, M_AACBUF, 394 M_INTWAIT); 395 debug(1, "id %x name '%.16s' size %u type %d", 396 mir->MntTable[0].ObjectId, 397 mir->MntTable[0].FileSystemName, 398 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 399 400 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 401 device_printf(sc->aac_dev, "device_add_child failed\n"); 402 else 403 device_set_ivars(child, co); 404 device_set_desc(child, aac_describe_code(aac_container_types, 405 mir->MntTable[0].VolType)); 406 co->co_disk = child; 407 co->co_found = f; 408 bcopy(&mir->MntTable[0], &co->co_mntobj, 409 sizeof(struct aac_mntobj)); 410 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 411 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 412 AAC_LOCK_RELEASE(&sc->aac_container_lock); 413 } 414 } 415 416 /* 417 * Free all of the resources associated with (sc) 418 * 419 * Should not be called if the controller is active. 420 */ 421 void 422 aac_free(struct aac_softc *sc) 423 { 424 debug_called(1); 425 426 /* remove the control device */ 427 if (sc->aac_dev_t != NULL) 428 destroy_dev(sc->aac_dev_t); 429 430 /* throw away any FIB buffers, discard the FIB DMA tag */ 431 if (sc->aac_fibs != NULL) 432 aac_free_commands(sc); 433 if (sc->aac_fib_dmat) 434 bus_dma_tag_destroy(sc->aac_fib_dmat); 435 436 /* destroy the common area */ 437 if (sc->aac_common) { 438 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 439 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 440 sc->aac_common_dmamap); 441 } 442 if (sc->aac_common_dmat) 443 bus_dma_tag_destroy(sc->aac_common_dmat); 444 445 /* disconnect the interrupt handler */ 446 if (sc->aac_intr) 447 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 448 if (sc->aac_irq != NULL) 449 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 450 sc->aac_irq); 451 452 /* destroy data-transfer DMA tag */ 453 if (sc->aac_buffer_dmat) 454 bus_dma_tag_destroy(sc->aac_buffer_dmat); 455 456 /* destroy the parent DMA tag */ 457 if (sc->aac_parent_dmat) 458 bus_dma_tag_destroy(sc->aac_parent_dmat); 459 460 /* release the register window mapping */ 461 if (sc->aac_regs_resource != NULL) { 462 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 463 sc->aac_regs_rid, sc->aac_regs_resource); 464 } 465 dev_ops_remove(&aac_ops, -1, device_get_unit(sc->aac_dev)); 466 } 467 468 /* 469 * Disconnect from the controller completely, in preparation for unload. 470 */ 471 int 472 aac_detach(device_t dev) 473 { 474 struct aac_softc *sc; 475 #if AAC_BROKEN 476 int error; 477 #endif 478 479 debug_called(1); 480 481 sc = device_get_softc(dev); 482 483 callout_stop(&sc->aac_watchdog); 484 485 if (sc->aac_state & AAC_STATE_OPEN) 486 return(EBUSY); 487 488 #if AAC_BROKEN 489 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 490 sc->aifflags |= AAC_AIFFLAGS_EXIT; 491 wakeup(sc->aifthread); 492 tsleep(sc->aac_dev, PCATCH, "aacdch", 30 * hz); 493 } 494 495 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 496 panic("Cannot shutdown AIF thread\n"); 497 498 if ((error = aac_shutdown(dev))) 499 return(error); 500 501 aac_free(sc); 502 503 return(0); 504 #else 505 return (EBUSY); 506 #endif 507 } 508 509 /* 510 * Bring the controller down to a dormant state and detach all child devices. 511 * 512 * This function is called before detach or system shutdown. 513 * 514 * Note that we can assume that the bioq on the controller is empty, as we won't 515 * allow shutdown if any device is open. 516 */ 517 int 518 aac_shutdown(device_t dev) 519 { 520 struct aac_softc *sc; 521 struct aac_fib *fib; 522 struct aac_close_command *cc; 523 524 debug_called(1); 525 526 sc = device_get_softc(dev); 527 528 crit_enter(); 529 530 sc->aac_state |= AAC_STATE_SUSPEND; 531 532 /* 533 * Send a Container shutdown followed by a HostShutdown FIB to the 534 * controller to convince it that we don't want to talk to it anymore. 535 * We've been closed and all I/O completed already 536 */ 537 device_printf(sc->aac_dev, "shutting down controller..."); 538 539 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 540 cc = (struct aac_close_command *)&fib->data[0]; 541 542 bzero(cc, sizeof(struct aac_close_command)); 543 cc->Command = VM_CloseAll; 544 cc->ContainerId = 0xffffffff; 545 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 546 sizeof(struct aac_close_command))) 547 kprintf("FAILED.\n"); 548 else { 549 fib->data[0] = 0; 550 /* 551 * XXX Issuing this command to the controller makes it shut down 552 * but also keeps it from coming back up without a reset of the 553 * PCI bus. This is not desirable if you are just unloading the 554 * driver module with the intent to reload it later. 555 */ 556 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 557 fib, 1)) { 558 kprintf("FAILED.\n"); 559 } else { 560 kprintf("done.\n"); 561 } 562 } 563 564 AAC_MASK_INTERRUPTS(sc); 565 566 crit_exit(); 567 return(0); 568 } 569 570 /* 571 * Bring the controller to a quiescent state, ready for system suspend. 572 */ 573 int 574 aac_suspend(device_t dev) 575 { 576 struct aac_softc *sc; 577 578 debug_called(1); 579 580 sc = device_get_softc(dev); 581 582 crit_enter(); 583 584 sc->aac_state |= AAC_STATE_SUSPEND; 585 586 AAC_MASK_INTERRUPTS(sc); 587 crit_exit(); 588 return(0); 589 } 590 591 /* 592 * Bring the controller back to a state ready for operation. 593 */ 594 int 595 aac_resume(device_t dev) 596 { 597 struct aac_softc *sc; 598 599 debug_called(1); 600 601 sc = device_get_softc(dev); 602 603 sc->aac_state &= ~AAC_STATE_SUSPEND; 604 AAC_UNMASK_INTERRUPTS(sc); 605 return(0); 606 } 607 608 /* 609 * Take an interrupt. 610 */ 611 void 612 aac_intr(void *arg) 613 { 614 struct aac_softc *sc; 615 u_int16_t reason; 616 u_int32_t *resp_queue; 617 618 debug_called(2); 619 620 sc = (struct aac_softc *)arg; 621 622 /* 623 * Optimize the common case of adapter response interrupts. 624 * We must read from the card prior to processing the responses 625 * to ensure the clear is flushed prior to accessing the queues. 626 * Reading the queues from local memory might save us a PCI read. 627 */ 628 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 629 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 630 reason = AAC_DB_RESPONSE_READY; 631 else 632 reason = AAC_GET_ISTATUS(sc); 633 AAC_CLEAR_ISTATUS(sc, reason); 634 (void)AAC_GET_ISTATUS(sc); 635 636 /* It's not ok to return here because of races with the previous step */ 637 if (reason & AAC_DB_RESPONSE_READY) 638 aac_host_response(sc); 639 640 /* controller wants to talk to the log */ 641 if (reason & AAC_DB_PRINTF) 642 aac_print_printf(sc); 643 644 /* controller has a message for us? */ 645 if (reason & AAC_DB_COMMAND_READY) { 646 /* XXX What happens if the thread is already awake? */ 647 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 648 sc->aifflags |= AAC_AIFFLAGS_PENDING; 649 wakeup(sc->aifthread); 650 } 651 } 652 } 653 654 /* 655 * Command Processing 656 */ 657 658 /* 659 * Start as much queued I/O as possible on the controller 660 */ 661 void 662 aac_startio(struct aac_softc *sc) 663 { 664 struct aac_command *cm; 665 666 debug_called(2); 667 668 for (;;) { 669 /* 670 * Try to get a command that's been put off for lack of 671 * resources 672 */ 673 cm = aac_dequeue_ready(sc); 674 675 /* 676 * Try to build a command off the bio queue (ignore error 677 * return) 678 */ 679 if (cm == NULL) 680 aac_bio_command(sc, &cm); 681 682 /* nothing to do? */ 683 if (cm == NULL) 684 break; 685 686 /* try to give the command to the controller */ 687 if (aac_start(cm) == EBUSY) { 688 /* put it on the ready queue for later */ 689 aac_requeue_ready(cm); 690 break; 691 } 692 } 693 } 694 695 /* 696 * Deliver a command to the controller; allocate controller resources at the 697 * last moment when possible. 698 */ 699 static int 700 aac_start(struct aac_command *cm) 701 { 702 struct aac_softc *sc; 703 int error; 704 705 debug_called(2); 706 707 sc = cm->cm_sc; 708 709 /* get the command mapped */ 710 aac_map_command(cm); 711 712 /* fix up the address values in the FIB */ 713 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 714 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 715 716 /* save a pointer to the command for speedy reverse-lookup */ 717 cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical 718 * address issue */ 719 /* put the FIB on the outbound queue */ 720 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 721 return(error); 722 } 723 724 /* 725 * Handle notification of one or more FIBs coming from the controller. 726 */ 727 static void 728 aac_host_command(struct aac_softc *sc) 729 { 730 struct aac_fib *fib; 731 u_int32_t fib_size; 732 int size; 733 734 debug_called(2); 735 736 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 737 738 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 739 if (!(sc->aifflags & AAC_AIFFLAGS_PENDING)) 740 tsleep(sc->aifthread, 0, "aifthd", 15 * hz); 741 742 sc->aifflags &= ~AAC_AIFFLAGS_PENDING; 743 for (;;) { 744 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 745 &fib_size, &fib)) 746 break; /* nothing to do */ 747 748 AAC_PRINT_FIB(sc, fib); 749 750 switch (fib->Header.Command) { 751 case AifRequest: 752 aac_handle_aif(sc, fib); 753 break; 754 default: 755 device_printf(sc->aac_dev, "unknown command " 756 "from controller\n"); 757 break; 758 } 759 760 /* Return the AIF to the controller. */ 761 if ((fib->Header.XferState == 0) || 762 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 763 break; 764 765 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 766 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 767 *(AAC_FSAStatus*)fib->data = ST_OK; 768 769 /* XXX Compute the Size field? */ 770 size = fib->Header.Size; 771 if (size > sizeof(struct aac_fib)) { 772 size = sizeof(struct aac_fib); 773 fib->Header.Size = size; 774 } 775 /* 776 * Since we did not generate this command, it 777 * cannot go through the normal 778 * enqueue->startio chain. 779 */ 780 aac_enqueue_response(sc, 781 AAC_ADAP_NORM_RESP_QUEUE, 782 fib); 783 } 784 } 785 } 786 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 787 wakeup(sc->aac_dev); 788 789 #if defined(__FreeBSD__) && __FreeBSD_version > 500005 790 mtx_lock(&Giant); 791 #endif 792 kthread_exit(); 793 } 794 795 /* 796 * Handle notification of one or more FIBs completed by the controller 797 */ 798 static void 799 aac_host_response(struct aac_softc *sc) 800 { 801 struct aac_command *cm; 802 struct aac_fib *fib; 803 u_int32_t fib_size; 804 805 debug_called(2); 806 807 for (;;) { 808 /* look for completed FIBs on our queue */ 809 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 810 &fib)) 811 break; /* nothing to do */ 812 813 /* get the command, unmap and queue for later processing */ 814 cm = (struct aac_command *)fib->Header.SenderData; 815 if (cm == NULL) { 816 AAC_PRINT_FIB(sc, fib); 817 } else { 818 aac_remove_busy(cm); 819 aac_unmap_command(cm); /* XXX defer? */ 820 aac_enqueue_complete(cm); 821 } 822 } 823 824 /* handle completion processing */ 825 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005 826 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 827 #else 828 aac_complete(sc, 0); 829 #endif 830 } 831 832 /* 833 * Process completed commands. 834 */ 835 static void 836 aac_complete(void *context, int pending) 837 { 838 struct aac_softc *sc; 839 struct aac_command *cm; 840 841 debug_called(2); 842 843 sc = (struct aac_softc *)context; 844 845 /* pull completed commands off the queue */ 846 for (;;) { 847 cm = aac_dequeue_complete(sc); 848 if (cm == NULL) 849 break; 850 cm->cm_flags |= AAC_CMD_COMPLETED; 851 852 /* is there a completion handler? */ 853 if (cm->cm_complete != NULL) { 854 cm->cm_complete(cm); 855 } else { 856 /* assume that someone is sleeping on this command */ 857 wakeup(cm); 858 } 859 } 860 861 /* see if we can start some more I/O */ 862 aac_startio(sc); 863 } 864 865 /* 866 * Handle a bio submitted from a disk device. 867 */ 868 void 869 aac_submit_bio(struct aac_disk *ad, struct bio *bio) 870 { 871 struct aac_softc *sc; 872 873 debug_called(2); 874 875 bio->bio_driver_info = ad; 876 sc = ad->ad_controller; 877 878 /* queue the BIO and try to get some work done */ 879 aac_enqueue_bio(sc, bio); 880 aac_startio(sc); 881 } 882 883 /* 884 * Get a bio and build a command to go with it. 885 */ 886 static int 887 aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 888 { 889 struct aac_command *cm; 890 struct aac_fib *fib; 891 struct aac_blockread *br; 892 struct aac_blockwrite *bw; 893 struct aac_disk *ad; 894 struct bio *bio; 895 struct buf *bp; 896 897 debug_called(2); 898 899 /* get the resources we will need */ 900 cm = NULL; 901 if ((bio = aac_dequeue_bio(sc)) == NULL) 902 goto fail; 903 if (aac_alloc_command(sc, &cm)) /* get a command */ 904 goto fail; 905 906 /* fill out the command */ 907 bp = bio->bio_buf; 908 cm->cm_data = (void *)bp->b_data; 909 cm->cm_datalen = bp->b_bcount; 910 cm->cm_complete = aac_bio_complete; 911 cm->cm_private = bio; 912 cm->cm_timestamp = time_second; 913 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 914 915 /* build the FIB */ 916 fib = cm->cm_fib; 917 fib->Header.XferState = 918 AAC_FIBSTATE_HOSTOWNED | 919 AAC_FIBSTATE_INITIALISED | 920 AAC_FIBSTATE_EMPTY | 921 AAC_FIBSTATE_FROMHOST | 922 AAC_FIBSTATE_REXPECTED | 923 AAC_FIBSTATE_NORM | 924 AAC_FIBSTATE_ASYNC | 925 AAC_FIBSTATE_FAST_RESPONSE; 926 fib->Header.Command = ContainerCommand; 927 fib->Header.Size = sizeof(struct aac_fib_header); 928 929 /* build the read/write request */ 930 ad = (struct aac_disk *)bio->bio_driver_info; 931 if (bp->b_cmd == BUF_CMD_READ) { 932 br = (struct aac_blockread *)&fib->data[0]; 933 br->Command = VM_CtBlockRead; 934 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 935 br->BlockNumber = bio->bio_offset / AAC_BLOCK_SIZE; 936 br->ByteCount = bp->b_bcount; 937 fib->Header.Size += sizeof(struct aac_blockread); 938 cm->cm_sgtable = &br->SgMap; 939 cm->cm_flags |= AAC_CMD_DATAIN; 940 } else { 941 bw = (struct aac_blockwrite *)&fib->data[0]; 942 bw->Command = VM_CtBlockWrite; 943 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 944 bw->BlockNumber = bio->bio_offset / AAC_BLOCK_SIZE; 945 bw->ByteCount = bp->b_bcount; 946 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 947 fib->Header.Size += sizeof(struct aac_blockwrite); 948 cm->cm_flags |= AAC_CMD_DATAOUT; 949 cm->cm_sgtable = &bw->SgMap; 950 } 951 952 *cmp = cm; 953 return(0); 954 955 fail: 956 if (bio != NULL) 957 aac_enqueue_bio(sc, bio); 958 if (cm != NULL) 959 aac_release_command(cm); 960 return(ENOMEM); 961 } 962 963 /* 964 * Handle a bio-instigated command that has been completed. 965 */ 966 static void 967 aac_bio_complete(struct aac_command *cm) 968 { 969 struct aac_blockread_response *brr; 970 struct aac_blockwrite_response *bwr; 971 struct bio *bio; 972 struct buf *bp; 973 const char *code; 974 AAC_FSAStatus status; 975 976 /* fetch relevant status and then release the command */ 977 bio = (struct bio *)cm->cm_private; 978 bp = bio->bio_buf; 979 if (bp->b_cmd == BUF_CMD_READ) { 980 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 981 status = brr->Status; 982 } else { 983 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 984 status = bwr->Status; 985 } 986 aac_release_command(cm); 987 988 /* fix up the bio based on status */ 989 if (status == ST_OK) { 990 bp->b_resid = 0; 991 code = 0; 992 } else { 993 bp->b_error = EIO; 994 bp->b_flags |= B_ERROR; 995 /* pass an error string out to the disk layer */ 996 code = aac_describe_code(aac_command_status_table, status); 997 } 998 aac_biodone(bio, code); 999 } 1000 1001 /* 1002 * Dump a block of data to the controller. If the queue is full, tell the 1003 * caller to hold off and wait for the queue to drain. 1004 */ 1005 int 1006 aac_dump_enqueue(struct aac_disk *ad, u_int64_t lba, void *data, int dumppages) 1007 { 1008 struct aac_softc *sc; 1009 struct aac_command *cm; 1010 struct aac_fib *fib; 1011 struct aac_blockwrite *bw; 1012 1013 sc = ad->ad_controller; 1014 cm = NULL; 1015 1016 KKASSERT(lba <= 0x100000000ULL); 1017 1018 if (aac_alloc_command(sc, &cm)) 1019 return (EBUSY); 1020 1021 /* fill out the command */ 1022 cm->cm_data = data; 1023 cm->cm_datalen = dumppages * PAGE_SIZE; 1024 cm->cm_complete = NULL; 1025 cm->cm_private = NULL; 1026 cm->cm_timestamp = time_second; 1027 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1028 1029 /* build the FIB */ 1030 fib = cm->cm_fib; 1031 fib->Header.XferState = 1032 AAC_FIBSTATE_HOSTOWNED | 1033 AAC_FIBSTATE_INITIALISED | 1034 AAC_FIBSTATE_FROMHOST | 1035 AAC_FIBSTATE_REXPECTED | 1036 AAC_FIBSTATE_NORM; 1037 fib->Header.Command = ContainerCommand; 1038 fib->Header.Size = sizeof(struct aac_fib_header); 1039 1040 bw = (struct aac_blockwrite *)&fib->data[0]; 1041 bw->Command = VM_CtBlockWrite; 1042 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 1043 bw->BlockNumber = lba; 1044 bw->ByteCount = dumppages * PAGE_SIZE; 1045 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 1046 fib->Header.Size += sizeof(struct aac_blockwrite); 1047 cm->cm_flags |= AAC_CMD_DATAOUT; 1048 cm->cm_sgtable = &bw->SgMap; 1049 1050 return (aac_start(cm)); 1051 } 1052 1053 /* 1054 * Wait for the card's queue to drain when dumping. Also check for monitor 1055 * kprintf's 1056 */ 1057 void 1058 aac_dump_complete(struct aac_softc *sc) 1059 { 1060 struct aac_fib *fib; 1061 struct aac_command *cm; 1062 u_int16_t reason; 1063 u_int32_t pi, ci, fib_size; 1064 1065 do { 1066 reason = AAC_GET_ISTATUS(sc); 1067 if (reason & AAC_DB_RESPONSE_READY) { 1068 AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY); 1069 for (;;) { 1070 if (aac_dequeue_fib(sc, 1071 AAC_HOST_NORM_RESP_QUEUE, 1072 &fib_size, &fib)) 1073 break; 1074 cm = (struct aac_command *) 1075 fib->Header.SenderData; 1076 if (cm == NULL) 1077 AAC_PRINT_FIB(sc, fib); 1078 else { 1079 aac_remove_busy(cm); 1080 aac_unmap_command(cm); 1081 aac_enqueue_complete(cm); 1082 aac_release_command(cm); 1083 } 1084 } 1085 } 1086 if (reason & AAC_DB_PRINTF) { 1087 AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF); 1088 aac_print_printf(sc); 1089 } 1090 pi = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][ 1091 AAC_PRODUCER_INDEX]; 1092 ci = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][ 1093 AAC_CONSUMER_INDEX]; 1094 } while (ci != pi); 1095 1096 return; 1097 } 1098 1099 /* 1100 * Submit a command to the controller, return when it completes. 1101 * XXX This is very dangerous! If the card has gone out to lunch, we could 1102 * be stuck here forever. At the same time, signals are not caught 1103 * because there is a risk that a signal could wakeup the tsleep before 1104 * the card has a chance to complete the command. The passed in timeout 1105 * is ignored for the same reason. Since there is no way to cancel a 1106 * command in progress, we should probably create a 'dead' queue where 1107 * commands go that have been interrupted/timed-out/etc, that keeps them 1108 * out of the free pool. That way, if the card is just slow, it won't 1109 * spam the memory of a command that has been recycled. 1110 */ 1111 static int 1112 aac_wait_command(struct aac_command *cm, int timeout) 1113 { 1114 int error = 0; 1115 1116 debug_called(2); 1117 1118 /* Put the command on the ready queue and get things going */ 1119 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1120 aac_enqueue_ready(cm); 1121 aac_startio(cm->cm_sc); 1122 crit_enter(); 1123 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1124 error = tsleep(cm, 0, "aacwait", 0); 1125 } 1126 crit_exit(); 1127 return(error); 1128 } 1129 1130 /* 1131 *Command Buffer Management 1132 */ 1133 1134 /* 1135 * Allocate a command. 1136 */ 1137 int 1138 aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1139 { 1140 struct aac_command *cm; 1141 1142 debug_called(3); 1143 1144 if ((cm = aac_dequeue_free(sc)) == NULL) 1145 return(ENOMEM); 1146 1147 *cmp = cm; 1148 return(0); 1149 } 1150 1151 /* 1152 * Release a command back to the freelist. 1153 */ 1154 void 1155 aac_release_command(struct aac_command *cm) 1156 { 1157 debug_called(3); 1158 1159 /* (re)initialise the command/FIB */ 1160 cm->cm_sgtable = NULL; 1161 cm->cm_flags = 0; 1162 cm->cm_complete = NULL; 1163 cm->cm_private = NULL; 1164 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1165 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1166 cm->cm_fib->Header.Flags = 0; 1167 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1168 1169 /* 1170 * These are duplicated in aac_start to cover the case where an 1171 * intermediate stage may have destroyed them. They're left 1172 * initialised here for debugging purposes only. 1173 */ 1174 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 1175 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1176 cm->cm_fib->Header.SenderData = 0; 1177 1178 aac_enqueue_free(cm); 1179 } 1180 1181 /* 1182 * Map helper for command/FIB allocation. 1183 */ 1184 static void 1185 aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1186 { 1187 struct aac_softc *sc; 1188 1189 sc = (struct aac_softc *)arg; 1190 1191 debug_called(3); 1192 1193 sc->aac_fibphys = segs[0].ds_addr; 1194 } 1195 1196 /* 1197 * Allocate and initialise commands/FIBs for this adapter. 1198 */ 1199 static int 1200 aac_alloc_commands(struct aac_softc *sc) 1201 { 1202 struct aac_command *cm; 1203 int i; 1204 1205 debug_called(1); 1206 1207 /* allocate the FIBs in DMAable memory and load them */ 1208 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs, 1209 BUS_DMA_NOWAIT, &sc->aac_fibmap)) { 1210 return(ENOMEM); 1211 } 1212 1213 bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs, 1214 AAC_FIB_COUNT * sizeof(struct aac_fib), 1215 aac_map_command_helper, sc, 0); 1216 1217 /* initialise constant fields in the command structure */ 1218 bzero(sc->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1219 for (i = 0; i < AAC_FIB_COUNT; i++) { 1220 cm = &sc->aac_command[i]; 1221 cm->cm_sc = sc; 1222 cm->cm_fib = sc->aac_fibs + i; 1223 cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib)); 1224 1225 if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap)) 1226 aac_release_command(cm); 1227 } 1228 return(0); 1229 } 1230 1231 /* 1232 * Free FIBs owned by this adapter. 1233 */ 1234 static void 1235 aac_free_commands(struct aac_softc *sc) 1236 { 1237 int i; 1238 1239 debug_called(1); 1240 1241 for (i = 0; i < AAC_FIB_COUNT; i++) 1242 bus_dmamap_destroy(sc->aac_buffer_dmat, 1243 sc->aac_command[i].cm_datamap); 1244 1245 bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap); 1246 bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap); 1247 } 1248 1249 /* 1250 * Command-mapping helper function - populate this command's s/g table. 1251 */ 1252 static void 1253 aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1254 { 1255 struct aac_command *cm; 1256 struct aac_fib *fib; 1257 struct aac_sg_table *sg; 1258 int i; 1259 1260 debug_called(3); 1261 1262 cm = (struct aac_command *)arg; 1263 fib = cm->cm_fib; 1264 1265 /* find the s/g table */ 1266 sg = cm->cm_sgtable; 1267 1268 /* copy into the FIB */ 1269 if (sg != NULL) { 1270 sg->SgCount = nseg; 1271 for (i = 0; i < nseg; i++) { 1272 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1273 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1274 } 1275 /* update the FIB size for the s/g count */ 1276 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1277 } 1278 1279 } 1280 1281 /* 1282 * Map a command into controller-visible space. 1283 */ 1284 static void 1285 aac_map_command(struct aac_command *cm) 1286 { 1287 struct aac_softc *sc; 1288 1289 debug_called(2); 1290 1291 sc = cm->cm_sc; 1292 1293 /* don't map more than once */ 1294 if (cm->cm_flags & AAC_CMD_MAPPED) 1295 return; 1296 1297 if (cm->cm_datalen != 0) { 1298 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 1299 cm->cm_data, cm->cm_datalen, 1300 aac_map_command_sg, cm, 0); 1301 1302 if (cm->cm_flags & AAC_CMD_DATAIN) 1303 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1304 BUS_DMASYNC_PREREAD); 1305 if (cm->cm_flags & AAC_CMD_DATAOUT) 1306 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1307 BUS_DMASYNC_PREWRITE); 1308 } 1309 cm->cm_flags |= AAC_CMD_MAPPED; 1310 } 1311 1312 /* 1313 * Unmap a command from controller-visible space. 1314 */ 1315 static void 1316 aac_unmap_command(struct aac_command *cm) 1317 { 1318 struct aac_softc *sc; 1319 1320 debug_called(2); 1321 1322 sc = cm->cm_sc; 1323 1324 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1325 return; 1326 1327 if (cm->cm_datalen != 0) { 1328 if (cm->cm_flags & AAC_CMD_DATAIN) 1329 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1330 BUS_DMASYNC_POSTREAD); 1331 if (cm->cm_flags & AAC_CMD_DATAOUT) 1332 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1333 BUS_DMASYNC_POSTWRITE); 1334 1335 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1336 } 1337 cm->cm_flags &= ~AAC_CMD_MAPPED; 1338 } 1339 1340 /* 1341 * Hardware Interface 1342 */ 1343 1344 /* 1345 * Initialise the adapter. 1346 */ 1347 static void 1348 aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1349 { 1350 struct aac_softc *sc; 1351 1352 debug_called(1); 1353 1354 sc = (struct aac_softc *)arg; 1355 1356 sc->aac_common_busaddr = segs[0].ds_addr; 1357 } 1358 1359 static int 1360 aac_check_firmware(struct aac_softc *sc) 1361 { 1362 u_int32_t major, minor, options; 1363 1364 debug_called(1); 1365 1366 /* 1367 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1368 * firmware version 1.x are not compatible with this driver. 1369 */ 1370 if (sc->flags & AAC_FLAGS_PERC2QC) { 1371 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1372 NULL)) { 1373 device_printf(sc->aac_dev, 1374 "Error reading firmware version\n"); 1375 return (EIO); 1376 } 1377 1378 /* These numbers are stored as ASCII! */ 1379 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30; 1380 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30; 1381 if (major == 1) { 1382 device_printf(sc->aac_dev, 1383 "Firmware version %d.%d is not supported.\n", 1384 major, minor); 1385 return (EINVAL); 1386 } 1387 } 1388 1389 /* 1390 * Retrieve the capabilities/supported options word so we know what 1391 * work-arounds to enable. 1392 */ 1393 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) { 1394 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 1395 return (EIO); 1396 } 1397 options = AAC_GET_MAILBOX(sc, 1); 1398 sc->supported_options = options; 1399 1400 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 && 1401 (sc->flags & AAC_FLAGS_NO4GB) == 0) 1402 sc->flags |= AAC_FLAGS_4GB_WINDOW; 1403 if (options & AAC_SUPPORTED_NONDASD) 1404 sc->flags |= AAC_FLAGS_ENABLE_CAM; 1405 1406 return (0); 1407 } 1408 1409 static int 1410 aac_init(struct aac_softc *sc) 1411 { 1412 struct aac_adapter_init *ip; 1413 time_t then; 1414 u_int32_t code; 1415 u_int8_t *qaddr; 1416 int error; 1417 1418 debug_called(1); 1419 1420 /* 1421 * First wait for the adapter to come ready. 1422 */ 1423 then = time_second; 1424 do { 1425 code = AAC_GET_FWSTATUS(sc); 1426 if (code & AAC_SELF_TEST_FAILED) { 1427 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1428 return(ENXIO); 1429 } 1430 if (code & AAC_KERNEL_PANIC) { 1431 device_printf(sc->aac_dev, 1432 "FATAL: controller kernel panic\n"); 1433 return(ENXIO); 1434 } 1435 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1436 device_printf(sc->aac_dev, 1437 "FATAL: controller not coming ready, " 1438 "status %x\n", code); 1439 return(ENXIO); 1440 } 1441 } while (!(code & AAC_UP_AND_RUNNING)); 1442 1443 error = ENOMEM; 1444 /* 1445 * Create DMA tag for mapping buffers into controller-addressable space. 1446 */ 1447 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1448 1, 0, /* algnmnt, boundary */ 1449 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1450 BUS_SPACE_MAXADDR, /* highaddr */ 1451 NULL, NULL, /* filter, filterarg */ 1452 MAXBSIZE, /* maxsize */ 1453 AAC_MAXSGENTRIES, /* nsegments */ 1454 MAXBSIZE, /* maxsegsize */ 1455 BUS_DMA_ALLOCNOW, /* flags */ 1456 &sc->aac_buffer_dmat)) { 1457 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 1458 goto out; 1459 } 1460 1461 /* 1462 * Create DMA tag for mapping FIBs into controller-addressable space.. 1463 */ 1464 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1465 1, 0, /* algnmnt, boundary */ 1466 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1467 BUS_SPACE_MAXADDR_32BIT : 1468 0x7fffffff, /* lowaddr */ 1469 BUS_SPACE_MAXADDR, /* highaddr */ 1470 NULL, NULL, /* filter, filterarg */ 1471 AAC_FIB_COUNT * 1472 sizeof(struct aac_fib), /* maxsize */ 1473 1, /* nsegments */ 1474 AAC_FIB_COUNT * 1475 sizeof(struct aac_fib), /* maxsegsize */ 1476 BUS_DMA_ALLOCNOW, /* flags */ 1477 &sc->aac_fib_dmat)) { 1478 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n"); 1479 goto out; 1480 } 1481 1482 /* 1483 * Create DMA tag for the common structure and allocate it. 1484 */ 1485 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1486 1, 0, /* algnmnt, boundary */ 1487 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1488 BUS_SPACE_MAXADDR_32BIT : 1489 0x7fffffff, /* lowaddr */ 1490 BUS_SPACE_MAXADDR, /* highaddr */ 1491 NULL, NULL, /* filter, filterarg */ 1492 8192 + sizeof(struct aac_common), /* maxsize */ 1493 1, /* nsegments */ 1494 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1495 BUS_DMA_ALLOCNOW, /* flags */ 1496 &sc->aac_common_dmat)) { 1497 device_printf(sc->aac_dev, 1498 "can't allocate common structure DMA tag\n"); 1499 goto out; 1500 } 1501 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1502 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1503 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1504 goto out; 1505 } 1506 /* 1507 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1508 * below address 8192 in physical memory. 1509 * XXX If the padding is not needed, can it be put to use instead 1510 * of ignored? 1511 */ 1512 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1513 sc->aac_common, 8192 + sizeof(*sc->aac_common), 1514 aac_common_map, sc, 0); 1515 1516 if (sc->aac_common_busaddr < 8192) { 1517 sc->aac_common = 1518 (struct aac_common *)((uint8_t *)sc->aac_common + 8192); 1519 sc->aac_common_busaddr += 8192; 1520 } 1521 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1522 1523 /* Allocate some FIBs and associated command structs */ 1524 if (aac_alloc_commands(sc) != 0) 1525 goto out; 1526 1527 /* 1528 * Fill in the init structure. This tells the adapter about the 1529 * physical location of various important shared data structures. 1530 */ 1531 ip = &sc->aac_common->ac_init; 1532 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1533 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1534 1535 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1536 offsetof(struct aac_common, ac_fibs); 1537 ip->AdapterFibsVirtualAddress = (aac_phys_addr_t)&sc->aac_common->ac_fibs[0]; 1538 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1539 ip->AdapterFibAlign = sizeof(struct aac_fib); 1540 1541 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1542 offsetof(struct aac_common, ac_printf); 1543 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1544 1545 /* The adapter assumes that pages are 4K in size */ 1546 /* XXX why should the adapter care? */ 1547 ip->HostPhysMemPages = ctob((int)Maxmem) / AAC_PAGE_SIZE; 1548 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1549 1550 /* 1551 * Initialise FIB queues. Note that it appears that the layout of the 1552 * indexes and the segmentation of the entries may be mandated by the 1553 * adapter, which is only told about the base of the queue index fields. 1554 * 1555 * The initial values of the indices are assumed to inform the adapter 1556 * of the sizes of the respective queues, and theoretically it could 1557 * work out the entire layout of the queue structures from this. We 1558 * take the easy route and just lay this area out like everyone else 1559 * does. 1560 * 1561 * The Linux driver uses a much more complex scheme whereby several 1562 * header records are kept for each queue. We use a couple of generic 1563 * list manipulation functions which 'know' the size of each list by 1564 * virtue of a table. 1565 */ 1566 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1567 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1568 sc->aac_queues = (struct aac_queue_table *)qaddr; 1569 ip->CommHeaderAddress = sc->aac_common_busaddr + 1570 ((u_int32_t)sc->aac_queues - 1571 (u_int32_t)sc->aac_common); 1572 bzero(sc->aac_queues, sizeof(struct aac_queue_table)); 1573 1574 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1575 AAC_HOST_NORM_CMD_ENTRIES; 1576 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1577 AAC_HOST_NORM_CMD_ENTRIES; 1578 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1579 AAC_HOST_HIGH_CMD_ENTRIES; 1580 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1581 AAC_HOST_HIGH_CMD_ENTRIES; 1582 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1583 AAC_ADAP_NORM_CMD_ENTRIES; 1584 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1585 AAC_ADAP_NORM_CMD_ENTRIES; 1586 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1587 AAC_ADAP_HIGH_CMD_ENTRIES; 1588 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1589 AAC_ADAP_HIGH_CMD_ENTRIES; 1590 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1591 AAC_HOST_NORM_RESP_ENTRIES; 1592 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1593 AAC_HOST_NORM_RESP_ENTRIES; 1594 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1595 AAC_HOST_HIGH_RESP_ENTRIES; 1596 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1597 AAC_HOST_HIGH_RESP_ENTRIES; 1598 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1599 AAC_ADAP_NORM_RESP_ENTRIES; 1600 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1601 AAC_ADAP_NORM_RESP_ENTRIES; 1602 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1603 AAC_ADAP_HIGH_RESP_ENTRIES; 1604 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1605 AAC_ADAP_HIGH_RESP_ENTRIES; 1606 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1607 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1608 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1609 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1610 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1611 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1612 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1613 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1614 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1615 &sc->aac_queues->qt_HostNormRespQueue[0]; 1616 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1617 &sc->aac_queues->qt_HostHighRespQueue[0]; 1618 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1619 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1620 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1621 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1622 1623 /* 1624 * Do controller-type-specific initialisation 1625 */ 1626 switch (sc->aac_hwif) { 1627 case AAC_HWIF_I960RX: 1628 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1629 break; 1630 } 1631 1632 /* 1633 * Give the init structure to the controller. 1634 */ 1635 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1636 sc->aac_common_busaddr + 1637 offsetof(struct aac_common, ac_init), 0, 0, 0, 1638 NULL)) { 1639 device_printf(sc->aac_dev, 1640 "error establishing init structure\n"); 1641 error = EIO; 1642 goto out; 1643 } 1644 1645 error = 0; 1646 out: 1647 return(error); 1648 } 1649 1650 /* 1651 * Send a synchronous command to the controller and wait for a result. 1652 */ 1653 static int 1654 aac_sync_command(struct aac_softc *sc, u_int32_t command, 1655 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1656 u_int32_t *sp) 1657 { 1658 time_t then; 1659 u_int32_t status; 1660 1661 debug_called(3); 1662 1663 /* populate the mailbox */ 1664 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1665 1666 /* ensure the sync command doorbell flag is cleared */ 1667 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1668 1669 /* then set it to signal the adapter */ 1670 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1671 1672 /* spin waiting for the command to complete */ 1673 then = time_second; 1674 do { 1675 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1676 debug(1, "timed out"); 1677 return(EIO); 1678 } 1679 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1680 1681 /* clear the completion flag */ 1682 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1683 1684 /* get the command status */ 1685 status = AAC_GET_MAILBOX(sc, 0); 1686 if (sp != NULL) 1687 *sp = status; 1688 return(0); 1689 } 1690 1691 /* 1692 * Grab the sync fib area. 1693 */ 1694 int 1695 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1696 { 1697 1698 /* 1699 * If the force flag is set, the system is shutting down, or in 1700 * trouble. Ignore the mutex. 1701 */ 1702 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1703 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1704 1705 *fib = &sc->aac_common->ac_sync_fib; 1706 1707 return (1); 1708 } 1709 1710 /* 1711 * Release the sync fib area. 1712 */ 1713 void 1714 aac_release_sync_fib(struct aac_softc *sc) 1715 { 1716 1717 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1718 } 1719 1720 /* 1721 * Send a synchronous FIB to the controller and wait for a result. 1722 */ 1723 int 1724 aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1725 struct aac_fib *fib, u_int16_t datasize) 1726 { 1727 debug_called(3); 1728 1729 if (datasize > AAC_FIB_DATASIZE) 1730 return(EINVAL); 1731 1732 /* 1733 * Set up the sync FIB 1734 */ 1735 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1736 AAC_FIBSTATE_INITIALISED | 1737 AAC_FIBSTATE_EMPTY; 1738 fib->Header.XferState |= xferstate; 1739 fib->Header.Command = command; 1740 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1741 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1742 fib->Header.SenderSize = sizeof(struct aac_fib); 1743 fib->Header.SenderFibAddress = (u_int32_t)fib; 1744 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1745 offsetof(struct aac_common, 1746 ac_sync_fib); 1747 1748 /* 1749 * Give the FIB to the controller, wait for a response. 1750 */ 1751 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1752 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1753 debug(2, "IO error"); 1754 return(EIO); 1755 } 1756 1757 return (0); 1758 } 1759 1760 /* 1761 * Adapter-space FIB queue manipulation 1762 * 1763 * Note that the queue implementation here is a little funky; neither the PI or 1764 * CI will ever be zero. This behaviour is a controller feature. 1765 */ 1766 static struct { 1767 int size; 1768 int notify; 1769 } aac_qinfo[] = { 1770 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1771 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1772 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1773 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1774 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1775 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1776 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1777 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1778 }; 1779 1780 /* 1781 * Atomically insert an entry into the nominated queue, returns 0 on success or 1782 * EBUSY if the queue is full. 1783 * 1784 * Note: it would be more efficient to defer notifying the controller in 1785 * the case where we may be inserting several entries in rapid succession, 1786 * but implementing this usefully may be difficult (it would involve a 1787 * separate queue/notify interface). 1788 */ 1789 static int 1790 aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1791 { 1792 u_int32_t pi, ci; 1793 int error; 1794 u_int32_t fib_size; 1795 u_int32_t fib_addr; 1796 1797 debug_called(3); 1798 1799 fib_size = cm->cm_fib->Header.Size; 1800 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1801 1802 crit_enter(); 1803 1804 /* get the producer/consumer indices */ 1805 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1806 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1807 1808 /* wrap the queue? */ 1809 if (pi >= aac_qinfo[queue].size) 1810 pi = 0; 1811 1812 /* check for queue full */ 1813 if ((pi + 1) == ci) { 1814 error = EBUSY; 1815 goto out; 1816 } 1817 /* 1818 * To avoid a race with its completion interrupt, place this command on 1819 * the busy queue prior to advertising it to the controller. 1820 */ 1821 aac_enqueue_busy(cm); 1822 1823 1824 1825 /* populate queue entry */ 1826 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1827 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1828 1829 /* update producer index */ 1830 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1831 1832 /* notify the adapter if we know how */ 1833 if (aac_qinfo[queue].notify != 0) 1834 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1835 1836 error = 0; 1837 1838 out: 1839 crit_exit(); 1840 return(error); 1841 } 1842 1843 /* 1844 * Atomically remove one entry from the nominated queue, returns 0 on 1845 * success or ENOENT if the queue is empty. 1846 */ 1847 static int 1848 aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1849 struct aac_fib **fib_addr) 1850 { 1851 u_int32_t pi, ci; 1852 int error; 1853 int notify; 1854 1855 debug_called(3); 1856 1857 crit_enter(); 1858 1859 /* get the producer/consumer indices */ 1860 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1861 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1862 1863 /* check for queue empty */ 1864 if (ci == pi) { 1865 error = ENOENT; 1866 goto out; 1867 } 1868 1869 /* wrap the pi so the following test works */ 1870 if (pi >= aac_qinfo[queue].size) 1871 pi = 0; 1872 1873 notify = 0; 1874 if (ci == pi + 1) 1875 notify++; 1876 1877 /* wrap the queue? */ 1878 if (ci >= aac_qinfo[queue].size) 1879 ci = 0; 1880 1881 /* fetch the entry */ 1882 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1883 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + 1884 ci)->aq_fib_addr; 1885 1886 /* 1887 * Is this a fast response? If it is, update the fib fields in 1888 * local memory so the whole fib doesn't have to be DMA'd back up. 1889 */ 1890 if (*(uintptr_t *)fib_addr & 0x01) { 1891 *(uintptr_t *)fib_addr &= ~0x01; 1892 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1893 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1894 } 1895 /* update consumer index */ 1896 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1897 1898 /* if we have made the queue un-full, notify the adapter */ 1899 if (notify && (aac_qinfo[queue].notify != 0)) 1900 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1901 error = 0; 1902 1903 out: 1904 crit_exit(); 1905 return(error); 1906 } 1907 1908 /* 1909 * Put our response to an Adapter Initialed Fib on the response queue 1910 */ 1911 static int 1912 aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1913 { 1914 u_int32_t pi, ci; 1915 int error; 1916 u_int32_t fib_size; 1917 u_int32_t fib_addr; 1918 1919 debug_called(1); 1920 1921 /* Tell the adapter where the FIB is */ 1922 fib_size = fib->Header.Size; 1923 fib_addr = fib->Header.SenderFibAddress; 1924 fib->Header.ReceiverFibAddress = fib_addr; 1925 1926 crit_enter(); 1927 1928 /* get the producer/consumer indices */ 1929 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1930 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1931 1932 /* wrap the queue? */ 1933 if (pi >= aac_qinfo[queue].size) 1934 pi = 0; 1935 1936 /* check for queue full */ 1937 if ((pi + 1) == ci) { 1938 error = EBUSY; 1939 goto out; 1940 } 1941 1942 /* populate queue entry */ 1943 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1944 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1945 1946 /* update producer index */ 1947 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1948 1949 /* notify the adapter if we know how */ 1950 if (aac_qinfo[queue].notify != 0) 1951 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1952 1953 error = 0; 1954 1955 out: 1956 crit_exit(); 1957 return(error); 1958 } 1959 1960 /* 1961 * Check for commands that have been outstanding for a suspiciously long time, 1962 * and complain about them. 1963 */ 1964 static void 1965 aac_timeout(void *xsc) 1966 { 1967 struct aac_softc *sc = xsc; 1968 struct aac_command *cm; 1969 time_t deadline; 1970 int timedout, code; 1971 #if 0 1972 /* simulate an interrupt to handle possibly-missed interrupts */ 1973 /* 1974 * XXX This was done to work around another bug which has since been 1975 * fixed. It is dangerous anyways because you don't want multiple 1976 * threads in the interrupt handler at the same time! If calling 1977 * is deamed neccesary in the future, proper mutexes must be used. 1978 */ 1979 crit_enter(); 1980 aac_intr(sc); 1981 crit_exit(); 1982 1983 /* kick the I/O queue to restart it in the case of deadlock */ 1984 aac_startio(sc); 1985 #endif 1986 1987 /* 1988 * traverse the busy command list, bitch about late commands once 1989 * only. 1990 */ 1991 timedout = 0; 1992 deadline = time_second - AAC_CMD_TIMEOUT; 1993 crit_enter(); 1994 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1995 if ((cm->cm_timestamp < deadline) 1996 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1997 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1998 device_printf(sc->aac_dev, 1999 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 2000 cm, (int)(time_second-cm->cm_timestamp)); 2001 AAC_PRINT_FIB(sc, cm->cm_fib); 2002 timedout++; 2003 } 2004 } 2005 if (timedout) { 2006 code = AAC_GET_FWSTATUS(sc); 2007 if (code != AAC_UP_AND_RUNNING) { 2008 device_printf(sc->aac_dev, "WARNING! Controller is no " 2009 "longer running! code= 0x%x\n", code); 2010 2011 } 2012 } 2013 crit_exit(); 2014 2015 /* reset the timer for next time */ 2016 callout_reset(&sc->aac_watchdog, AAC_PERIODIC_INTERVAL * hz, 2017 aac_timeout, sc); 2018 } 2019 2020 /* 2021 * Interface Function Vectors 2022 */ 2023 2024 /* 2025 * Read the current firmware status word. 2026 */ 2027 static int 2028 aac_sa_get_fwstatus(struct aac_softc *sc) 2029 { 2030 debug_called(3); 2031 2032 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 2033 } 2034 2035 static int 2036 aac_rx_get_fwstatus(struct aac_softc *sc) 2037 { 2038 debug_called(3); 2039 2040 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2041 } 2042 2043 static int 2044 aac_fa_get_fwstatus(struct aac_softc *sc) 2045 { 2046 int val; 2047 2048 debug_called(3); 2049 2050 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2051 return (val); 2052 } 2053 2054 /* 2055 * Notify the controller of a change in a given queue 2056 */ 2057 2058 static void 2059 aac_sa_qnotify(struct aac_softc *sc, int qbit) 2060 { 2061 debug_called(3); 2062 2063 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2064 } 2065 2066 static void 2067 aac_rx_qnotify(struct aac_softc *sc, int qbit) 2068 { 2069 debug_called(3); 2070 2071 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2072 } 2073 2074 static void 2075 aac_fa_qnotify(struct aac_softc *sc, int qbit) 2076 { 2077 debug_called(3); 2078 2079 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2080 AAC_FA_HACK(sc); 2081 } 2082 2083 /* 2084 * Get the interrupt reason bits 2085 */ 2086 static int 2087 aac_sa_get_istatus(struct aac_softc *sc) 2088 { 2089 debug_called(3); 2090 2091 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2092 } 2093 2094 static int 2095 aac_rx_get_istatus(struct aac_softc *sc) 2096 { 2097 debug_called(3); 2098 2099 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2100 } 2101 2102 static int 2103 aac_fa_get_istatus(struct aac_softc *sc) 2104 { 2105 int val; 2106 2107 debug_called(3); 2108 2109 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2110 return (val); 2111 } 2112 2113 /* 2114 * Clear some interrupt reason bits 2115 */ 2116 static void 2117 aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2118 { 2119 debug_called(3); 2120 2121 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2122 } 2123 2124 static void 2125 aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2126 { 2127 debug_called(3); 2128 2129 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2130 } 2131 2132 static void 2133 aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2134 { 2135 debug_called(3); 2136 2137 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2138 AAC_FA_HACK(sc); 2139 } 2140 2141 /* 2142 * Populate the mailbox and set the command word 2143 */ 2144 static void 2145 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2146 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2147 { 2148 debug_called(4); 2149 2150 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2151 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2152 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2153 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2154 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2155 } 2156 2157 static void 2158 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2159 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2160 { 2161 debug_called(4); 2162 2163 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2164 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2165 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2166 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2167 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2168 } 2169 2170 static void 2171 aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2172 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2173 { 2174 debug_called(4); 2175 2176 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2177 AAC_FA_HACK(sc); 2178 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2179 AAC_FA_HACK(sc); 2180 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2181 AAC_FA_HACK(sc); 2182 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2183 AAC_FA_HACK(sc); 2184 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2185 AAC_FA_HACK(sc); 2186 } 2187 2188 /* 2189 * Fetch the immediate command status word 2190 */ 2191 static int 2192 aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2193 { 2194 debug_called(4); 2195 2196 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2197 } 2198 2199 static int 2200 aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2201 { 2202 debug_called(4); 2203 2204 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2205 } 2206 2207 static int 2208 aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2209 { 2210 int val; 2211 2212 debug_called(4); 2213 2214 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2215 return (val); 2216 } 2217 2218 /* 2219 * Set/clear interrupt masks 2220 */ 2221 static void 2222 aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2223 { 2224 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2225 2226 if (enable) { 2227 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2228 } else { 2229 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2230 } 2231 } 2232 2233 static void 2234 aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2235 { 2236 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2237 2238 if (enable) { 2239 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2240 } else { 2241 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2242 } 2243 } 2244 2245 static void 2246 aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2247 { 2248 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2249 2250 if (enable) { 2251 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2252 AAC_FA_HACK(sc); 2253 } else { 2254 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2255 AAC_FA_HACK(sc); 2256 } 2257 } 2258 2259 /* 2260 * Debugging and Diagnostics 2261 */ 2262 2263 /* 2264 * Print some information about the controller. 2265 */ 2266 static void 2267 aac_describe_controller(struct aac_softc *sc) 2268 { 2269 struct aac_fib *fib; 2270 struct aac_adapter_info *info; 2271 2272 debug_called(2); 2273 2274 aac_alloc_sync_fib(sc, &fib, 0); 2275 2276 fib->data[0] = 0; 2277 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2278 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2279 aac_release_sync_fib(sc); 2280 return; 2281 } 2282 info = (struct aac_adapter_info *)&fib->data[0]; 2283 2284 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2285 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2286 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2287 aac_describe_code(aac_battery_platform, 2288 info->batteryPlatform)); 2289 2290 /* save the kernel revision structure for later use */ 2291 sc->aac_revision = info->KernelRevision; 2292 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2293 info->KernelRevision.external.comp.major, 2294 info->KernelRevision.external.comp.minor, 2295 info->KernelRevision.external.comp.dash, 2296 info->KernelRevision.buildNumber, 2297 (u_int32_t)(info->SerialNumber & 0xffffff)); 2298 2299 aac_release_sync_fib(sc); 2300 2301 if (1 || bootverbose) { 2302 device_printf(sc->aac_dev, "Supported Options=%b\n", 2303 sc->supported_options, 2304 "\20" 2305 "\1SNAPSHOT" 2306 "\2CLUSTERS" 2307 "\3WCACHE" 2308 "\4DATA64" 2309 "\5HOSTTIME" 2310 "\6RAID50" 2311 "\7WINDOW4GB" 2312 "\10SCSIUPGD" 2313 "\11SOFTERR" 2314 "\12NORECOND" 2315 "\13SGMAP64" 2316 "\14ALARM" 2317 "\15NONDASD"); 2318 } 2319 } 2320 2321 /* 2322 * Look up a text description of a numeric error code and return a pointer to 2323 * same. 2324 */ 2325 static char * 2326 aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2327 { 2328 int i; 2329 2330 for (i = 0; table[i].string != NULL; i++) 2331 if (table[i].code == code) 2332 return(table[i].string); 2333 return(table[i + 1].string); 2334 } 2335 2336 /* 2337 * Management Interface 2338 */ 2339 2340 static int 2341 aac_open(struct dev_open_args *ap) 2342 { 2343 cdev_t dev = ap->a_head.a_dev; 2344 struct aac_softc *sc; 2345 2346 debug_called(2); 2347 2348 sc = dev->si_drv1; 2349 2350 /* Check to make sure the device isn't already open */ 2351 if (sc->aac_state & AAC_STATE_OPEN) { 2352 return EBUSY; 2353 } 2354 sc->aac_state |= AAC_STATE_OPEN; 2355 2356 return 0; 2357 } 2358 2359 static int 2360 aac_close(struct dev_close_args *ap) 2361 { 2362 cdev_t dev = ap->a_head.a_dev; 2363 struct aac_softc *sc; 2364 2365 debug_called(2); 2366 2367 sc = dev->si_drv1; 2368 2369 /* Mark this unit as no longer open */ 2370 sc->aac_state &= ~AAC_STATE_OPEN; 2371 2372 return 0; 2373 } 2374 2375 static int 2376 aac_ioctl(struct dev_ioctl_args *ap) 2377 { 2378 cdev_t dev = ap->a_head.a_dev; 2379 caddr_t arg = ap->a_data; 2380 struct aac_softc *sc = dev->si_drv1; 2381 int error = 0; 2382 int i; 2383 2384 debug_called(2); 2385 2386 if (ap->a_cmd == AACIO_STATS) { 2387 union aac_statrequest *as = (union aac_statrequest *)arg; 2388 2389 switch (as->as_item) { 2390 case AACQ_FREE: 2391 case AACQ_BIO: 2392 case AACQ_READY: 2393 case AACQ_BUSY: 2394 case AACQ_COMPLETE: 2395 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2396 sizeof(struct aac_qstat)); 2397 break; 2398 default: 2399 error = ENOENT; 2400 break; 2401 } 2402 return(error); 2403 } 2404 2405 arg = *(caddr_t *)arg; 2406 2407 switch (ap->a_cmd) { 2408 /* AACIO_STATS already handled above */ 2409 case FSACTL_SENDFIB: 2410 debug(1, "FSACTL_SENDFIB"); 2411 error = aac_ioctl_sendfib(sc, arg); 2412 break; 2413 case FSACTL_AIF_THREAD: 2414 debug(1, "FSACTL_AIF_THREAD"); 2415 error = EINVAL; 2416 break; 2417 case FSACTL_OPEN_GET_ADAPTER_FIB: 2418 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2419 /* 2420 * Pass the caller out an AdapterFibContext. 2421 * 2422 * Note that because we only support one opener, we 2423 * basically ignore this. Set the caller's context to a magic 2424 * number just in case. 2425 * 2426 * The Linux code hands the driver a pointer into kernel space, 2427 * and then trusts it when the caller hands it back. Aiee! 2428 * Here, we give it the proc pointer of the per-adapter aif 2429 * thread. It's only used as a sanity check in other calls. 2430 */ 2431 i = (int)sc->aifthread; 2432 error = copyout(&i, arg, sizeof(i)); 2433 break; 2434 case FSACTL_GET_NEXT_ADAPTER_FIB: 2435 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2436 error = aac_getnext_aif(sc, arg); 2437 break; 2438 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2439 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2440 /* don't do anything here */ 2441 break; 2442 case FSACTL_MINIPORT_REV_CHECK: 2443 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2444 error = aac_rev_check(sc, arg); 2445 break; 2446 case FSACTL_QUERY_DISK: 2447 debug(1, "FSACTL_QUERY_DISK"); 2448 error = aac_query_disk(sc, arg); 2449 break; 2450 case FSACTL_DELETE_DISK: 2451 /* 2452 * We don't trust the underland to tell us when to delete a 2453 * container, rather we rely on an AIF coming from the 2454 * controller 2455 */ 2456 error = 0; 2457 break; 2458 default: 2459 debug(1, "unsupported cmd 0x%lx\n", ap->a_cmd); 2460 error = EINVAL; 2461 break; 2462 } 2463 return(error); 2464 } 2465 2466 static int 2467 aac_poll(struct dev_poll_args *ap) 2468 { 2469 cdev_t dev = ap->a_head.a_dev; 2470 struct aac_softc *sc; 2471 int revents; 2472 2473 sc = dev->si_drv1; 2474 revents = 0; 2475 2476 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2477 if ((ap->a_events & (POLLRDNORM | POLLIN)) != 0) { 2478 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2479 revents |= ap->a_events & (POLLIN | POLLRDNORM); 2480 } 2481 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2482 2483 if (revents == 0) { 2484 if (ap->a_events & (POLLIN | POLLRDNORM)) 2485 selrecord(curthread, &sc->rcv_select); 2486 } 2487 ap->a_events = revents; 2488 return (0); 2489 } 2490 2491 /* 2492 * Send a FIB supplied from userspace 2493 */ 2494 static int 2495 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2496 { 2497 struct aac_command *cm; 2498 int size, error; 2499 2500 debug_called(2); 2501 2502 cm = NULL; 2503 2504 /* 2505 * Get a command 2506 */ 2507 if (aac_alloc_command(sc, &cm)) { 2508 error = EBUSY; 2509 goto out; 2510 } 2511 2512 /* 2513 * Fetch the FIB header, then re-copy to get data as well. 2514 */ 2515 if ((error = copyin(ufib, cm->cm_fib, 2516 sizeof(struct aac_fib_header))) != 0) 2517 goto out; 2518 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2519 if (size > sizeof(struct aac_fib)) { 2520 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2521 size, sizeof(struct aac_fib)); 2522 size = sizeof(struct aac_fib); 2523 } 2524 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2525 goto out; 2526 cm->cm_fib->Header.Size = size; 2527 cm->cm_timestamp = time_second; 2528 2529 /* 2530 * Pass the FIB to the controller, wait for it to complete. 2531 */ 2532 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2533 kprintf("aac_wait_command return %d\n", error); 2534 goto out; 2535 } 2536 2537 /* 2538 * Copy the FIB and data back out to the caller. 2539 */ 2540 size = cm->cm_fib->Header.Size; 2541 if (size > sizeof(struct aac_fib)) { 2542 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2543 size, sizeof(struct aac_fib)); 2544 size = sizeof(struct aac_fib); 2545 } 2546 error = copyout(cm->cm_fib, ufib, size); 2547 2548 out: 2549 if (cm != NULL) { 2550 aac_release_command(cm); 2551 } 2552 return(error); 2553 } 2554 2555 /* 2556 * Handle an AIF sent to us by the controller; queue it for later reference. 2557 * If the queue fills up, then drop the older entries. 2558 */ 2559 static void 2560 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2561 { 2562 struct aac_aif_command *aif; 2563 struct aac_container *co, *co_next; 2564 struct aac_mntinfo *mi; 2565 struct aac_mntinforesp *mir = NULL; 2566 u_int16_t rsize; 2567 int next, found; 2568 int count = 0, added = 0, i = 0; 2569 2570 debug_called(2); 2571 2572 aif = (struct aac_aif_command*)&fib->data[0]; 2573 aac_print_aif(sc, aif); 2574 2575 /* Is it an event that we should care about? */ 2576 switch (aif->command) { 2577 case AifCmdEventNotify: 2578 switch (aif->data.EN.type) { 2579 case AifEnAddContainer: 2580 case AifEnDeleteContainer: 2581 /* 2582 * A container was added or deleted, but the message 2583 * doesn't tell us anything else! Re-enumerate the 2584 * containers and sort things out. 2585 */ 2586 aac_alloc_sync_fib(sc, &fib, 0); 2587 mi = (struct aac_mntinfo *)&fib->data[0]; 2588 do { 2589 /* 2590 * Ask the controller for its containers one at 2591 * a time. 2592 * XXX What if the controller's list changes 2593 * midway through this enumaration? 2594 * XXX This should be done async. 2595 */ 2596 bzero(mi, sizeof(struct aac_mntinfo)); 2597 mi->Command = VM_NameServe; 2598 mi->MntType = FT_FILESYS; 2599 mi->MntCount = i; 2600 rsize = sizeof(mir); 2601 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2602 sizeof(struct aac_mntinfo))) { 2603 device_printf(sc->aac_dev, 2604 "Error probing container %d\n", i); 2605 2606 continue; 2607 } 2608 mir = (struct aac_mntinforesp *)&fib->data[0]; 2609 /* XXX Need to check if count changed */ 2610 count = mir->MntRespCount; 2611 2612 /* 2613 * Check the container against our list. 2614 * co->co_found was already set to 0 in a 2615 * previous run. 2616 */ 2617 if ((mir->Status == ST_OK) && 2618 (mir->MntTable[0].VolType != CT_NONE)) { 2619 found = 0; 2620 TAILQ_FOREACH(co, 2621 &sc->aac_container_tqh, 2622 co_link) { 2623 if (co->co_mntobj.ObjectId == 2624 mir->MntTable[0].ObjectId) { 2625 co->co_found = 1; 2626 found = 1; 2627 break; 2628 } 2629 } 2630 /* 2631 * If the container matched, continue 2632 * in the list. 2633 */ 2634 if (found) { 2635 i++; 2636 continue; 2637 } 2638 2639 /* 2640 * This is a new container. Do all the 2641 * appropriate things to set it up. */ 2642 aac_add_container(sc, mir, 1); 2643 added = 1; 2644 } 2645 i++; 2646 } while ((i < count) && (i < AAC_MAX_CONTAINERS)); 2647 aac_release_sync_fib(sc); 2648 2649 /* 2650 * Go through our list of containers and see which ones 2651 * were not marked 'found'. Since the controller didn't 2652 * list them they must have been deleted. Do the 2653 * appropriate steps to destroy the device. Also reset 2654 * the co->co_found field. 2655 */ 2656 co = TAILQ_FIRST(&sc->aac_container_tqh); 2657 while (co != NULL) { 2658 if (co->co_found == 0) { 2659 device_delete_child(sc->aac_dev, 2660 co->co_disk); 2661 co_next = TAILQ_NEXT(co, co_link); 2662 AAC_LOCK_ACQUIRE(&sc-> 2663 aac_container_lock); 2664 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2665 co_link); 2666 AAC_LOCK_RELEASE(&sc-> 2667 aac_container_lock); 2668 FREE(co, M_AACBUF); 2669 co = co_next; 2670 } else { 2671 co->co_found = 0; 2672 co = TAILQ_NEXT(co, co_link); 2673 } 2674 } 2675 2676 /* Attach the newly created containers */ 2677 if (added) 2678 bus_generic_attach(sc->aac_dev); 2679 2680 break; 2681 2682 default: 2683 break; 2684 } 2685 2686 default: 2687 break; 2688 } 2689 2690 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2691 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2692 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2693 if (next != sc->aac_aifq_tail) { 2694 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2695 sc->aac_aifq_head = next; 2696 2697 /* On the off chance that someone is sleeping for an aif... */ 2698 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2699 wakeup(sc->aac_aifq); 2700 /* token may have been lost */ 2701 /* Wakeup any poll()ers */ 2702 selwakeup(&sc->rcv_select); 2703 /* token may have been lost */ 2704 } 2705 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2706 2707 return; 2708 } 2709 2710 /* 2711 * Return the Revision of the driver to userspace and check to see if the 2712 * userspace app is possibly compatible. This is extremely bogus since 2713 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2714 * returning what the card reported. 2715 */ 2716 static int 2717 aac_rev_check(struct aac_softc *sc, caddr_t udata) 2718 { 2719 struct aac_rev_check rev_check; 2720 struct aac_rev_check_resp rev_check_resp; 2721 int error = 0; 2722 2723 debug_called(2); 2724 2725 /* 2726 * Copyin the revision struct from userspace 2727 */ 2728 if ((error = copyin(udata, (caddr_t)&rev_check, 2729 sizeof(struct aac_rev_check))) != 0) { 2730 return error; 2731 } 2732 2733 debug(2, "Userland revision= %d\n", 2734 rev_check.callingRevision.buildNumber); 2735 2736 /* 2737 * Doctor up the response struct. 2738 */ 2739 rev_check_resp.possiblyCompatible = 1; 2740 rev_check_resp.adapterSWRevision.external.ul = 2741 sc->aac_revision.external.ul; 2742 rev_check_resp.adapterSWRevision.buildNumber = 2743 sc->aac_revision.buildNumber; 2744 2745 return(copyout((caddr_t)&rev_check_resp, udata, 2746 sizeof(struct aac_rev_check_resp))); 2747 } 2748 2749 /* 2750 * Pass the caller the next AIF in their queue 2751 */ 2752 static int 2753 aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2754 { 2755 struct get_adapter_fib_ioctl agf; 2756 int error; 2757 2758 debug_called(2); 2759 2760 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2761 2762 /* 2763 * Check the magic number that we gave the caller. 2764 */ 2765 if (agf.AdapterFibContext != (int)sc->aifthread) { 2766 error = EFAULT; 2767 } else { 2768 2769 crit_enter(); 2770 error = aac_return_aif(sc, agf.AifFib); 2771 2772 if ((error == EAGAIN) && (agf.Wait)) { 2773 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2774 while (error == EAGAIN) { 2775 error = tsleep(sc->aac_aifq, 2776 PCATCH, "aacaif", 0); 2777 if (error == 0) 2778 error = aac_return_aif(sc, 2779 agf.AifFib); 2780 } 2781 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2782 } 2783 crit_exit(); 2784 } 2785 } 2786 return(error); 2787 } 2788 2789 /* 2790 * Hand the next AIF off the top of the queue out to userspace. 2791 * 2792 * YYY token could be lost during copyout 2793 */ 2794 static int 2795 aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2796 { 2797 int error; 2798 2799 debug_called(2); 2800 2801 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2802 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2803 error = EAGAIN; 2804 } else { 2805 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2806 sizeof(struct aac_aif_command)); 2807 if (error) 2808 kprintf("aac_return_aif: copyout returned %d\n", error); 2809 if (!error) 2810 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2811 AAC_AIFQ_LENGTH; 2812 } 2813 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2814 return(error); 2815 } 2816 2817 /* 2818 * Give the userland some information about the container. The AAC arch 2819 * expects the driver to be a SCSI passthrough type driver, so it expects 2820 * the containers to have b:t:l numbers. Fake it. 2821 */ 2822 static int 2823 aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2824 { 2825 struct aac_query_disk query_disk; 2826 struct aac_container *co; 2827 struct aac_disk *disk; 2828 int error, id; 2829 2830 debug_called(2); 2831 2832 disk = NULL; 2833 2834 error = copyin(uptr, (caddr_t)&query_disk, 2835 sizeof(struct aac_query_disk)); 2836 if (error) 2837 return (error); 2838 2839 id = query_disk.ContainerNumber; 2840 if (id == -1) 2841 return (EINVAL); 2842 2843 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2844 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2845 if (co->co_mntobj.ObjectId == id) 2846 break; 2847 } 2848 2849 if (co == NULL) { 2850 query_disk.Valid = 0; 2851 query_disk.Locked = 0; 2852 query_disk.Deleted = 1; /* XXX is this right? */ 2853 } else { 2854 disk = device_get_softc(co->co_disk); 2855 query_disk.Valid = 1; 2856 query_disk.Locked = 2857 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2858 query_disk.Deleted = 0; 2859 query_disk.Bus = device_get_unit(sc->aac_dev); 2860 query_disk.Target = disk->unit; 2861 query_disk.Lun = 0; 2862 query_disk.UnMapped = 0; 2863 bcopy(disk->ad_dev_t->si_name, 2864 &query_disk.diskDeviceName[0], 10); 2865 } 2866 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2867 2868 error = copyout((caddr_t)&query_disk, uptr, 2869 sizeof(struct aac_query_disk)); 2870 2871 return (error); 2872 } 2873 2874 static void 2875 aac_get_bus_info(struct aac_softc *sc) 2876 { 2877 struct aac_fib *fib; 2878 struct aac_ctcfg *c_cmd; 2879 struct aac_ctcfg_resp *c_resp; 2880 struct aac_vmioctl *vmi; 2881 struct aac_vmi_businf_resp *vmi_resp; 2882 struct aac_getbusinf businfo; 2883 struct aac_cam_inf *caminf; 2884 device_t child; 2885 int i, found, error; 2886 2887 aac_alloc_sync_fib(sc, &fib, 0); 2888 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2889 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2890 2891 c_cmd->Command = VM_ContainerConfig; 2892 c_cmd->cmd = CT_GET_SCSI_METHOD; 2893 c_cmd->param = 0; 2894 2895 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2896 sizeof(struct aac_ctcfg)); 2897 if (error) { 2898 device_printf(sc->aac_dev, "Error %d sending " 2899 "VM_ContainerConfig command\n", error); 2900 aac_release_sync_fib(sc); 2901 return; 2902 } 2903 2904 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2905 if (c_resp->Status != ST_OK) { 2906 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2907 c_resp->Status); 2908 aac_release_sync_fib(sc); 2909 return; 2910 } 2911 2912 sc->scsi_method_id = c_resp->param; 2913 2914 vmi = (struct aac_vmioctl *)&fib->data[0]; 2915 bzero(vmi, sizeof(struct aac_vmioctl)); 2916 2917 vmi->Command = VM_Ioctl; 2918 vmi->ObjType = FT_DRIVE; 2919 vmi->MethId = sc->scsi_method_id; 2920 vmi->ObjId = 0; 2921 vmi->IoctlCmd = GetBusInfo; 2922 2923 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2924 sizeof(struct aac_vmioctl)); 2925 if (error) { 2926 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2927 error); 2928 aac_release_sync_fib(sc); 2929 return; 2930 } 2931 2932 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2933 if (vmi_resp->Status != ST_OK) { 2934 debug(1, "VM_Ioctl returned %d\n", vmi_resp->Status); 2935 aac_release_sync_fib(sc); 2936 return; 2937 } 2938 2939 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2940 aac_release_sync_fib(sc); 2941 2942 found = 0; 2943 for (i = 0; i < businfo.BusCount; i++) { 2944 if (businfo.BusValid[i] != AAC_BUS_VALID) 2945 continue; 2946 2947 MALLOC(caminf, struct aac_cam_inf *, 2948 sizeof(struct aac_cam_inf), M_AACBUF, M_INTWAIT | M_ZERO); 2949 2950 child = device_add_child(sc->aac_dev, "aacp", -1); 2951 if (child == NULL) { 2952 device_printf(sc->aac_dev, "device_add_child failed\n"); 2953 continue; 2954 } 2955 2956 caminf->TargetsPerBus = businfo.TargetsPerBus; 2957 caminf->BusNumber = i; 2958 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2959 caminf->aac_sc = sc; 2960 2961 device_set_ivars(child, caminf); 2962 device_set_desc(child, "SCSI Passthrough Bus"); 2963 2964 found = 1; 2965 } 2966 2967 if (found) 2968 bus_generic_attach(sc->aac_dev); 2969 2970 return; 2971 } 2972