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 1.15 2004/08/15 14:15:00 joerg 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 <machine/bus_memio.h> 64 #include <machine/bus.h> 65 #include <machine/resource.h> 66 67 #include "aacreg.h" 68 #include "aac_ioctl.h" 69 #include "aacvar.h" 70 #include "aac_tables.h" 71 #include "aac_cam.h" 72 73 static void aac_startup(void *arg); 74 static void aac_add_container(struct aac_softc *sc, 75 struct aac_mntinforesp *mir, int f); 76 static void aac_get_bus_info(struct aac_softc *sc); 77 78 /* Command Processing */ 79 static void aac_timeout(struct aac_softc *sc); 80 static int aac_start(struct aac_command *cm); 81 static void aac_complete(void *context, int pending); 82 static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 83 static void aac_bio_complete(struct aac_command *cm); 84 static int aac_wait_command(struct aac_command *cm, int timeout); 85 static void aac_host_command(struct aac_softc *sc); 86 static void aac_host_response(struct aac_softc *sc); 87 88 /* Command Buffer Management */ 89 static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 90 int nseg, int error); 91 static int aac_alloc_commands(struct aac_softc *sc); 92 static void aac_free_commands(struct aac_softc *sc); 93 static void aac_map_command(struct aac_command *cm); 94 static void aac_unmap_command(struct aac_command *cm); 95 96 /* Hardware Interface */ 97 static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 98 int error); 99 static int aac_check_firmware(struct aac_softc *sc); 100 static int aac_init(struct aac_softc *sc); 101 static int aac_sync_command(struct aac_softc *sc, u_int32_t command, 102 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 103 u_int32_t arg3, u_int32_t *sp); 104 static int aac_enqueue_fib(struct aac_softc *sc, int queue, 105 struct aac_command *cm); 106 static int aac_dequeue_fib(struct aac_softc *sc, int queue, 107 u_int32_t *fib_size, struct aac_fib **fib_addr); 108 static int aac_enqueue_response(struct aac_softc *sc, int queue, 109 struct aac_fib *fib); 110 111 /* Falcon/PPC interface */ 112 static int aac_fa_get_fwstatus(struct aac_softc *sc); 113 static void aac_fa_qnotify(struct aac_softc *sc, int qbit); 114 static int aac_fa_get_istatus(struct aac_softc *sc); 115 static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 116 static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 117 u_int32_t arg0, u_int32_t arg1, 118 u_int32_t arg2, u_int32_t arg3); 119 static int aac_fa_get_mailbox(struct aac_softc *sc, int mb); 120 static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 121 122 struct aac_interface aac_fa_interface = { 123 aac_fa_get_fwstatus, 124 aac_fa_qnotify, 125 aac_fa_get_istatus, 126 aac_fa_clear_istatus, 127 aac_fa_set_mailbox, 128 aac_fa_get_mailbox, 129 aac_fa_set_interrupts 130 }; 131 132 /* StrongARM interface */ 133 static int aac_sa_get_fwstatus(struct aac_softc *sc); 134 static void aac_sa_qnotify(struct aac_softc *sc, int qbit); 135 static int aac_sa_get_istatus(struct aac_softc *sc); 136 static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 137 static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 138 u_int32_t arg0, u_int32_t arg1, 139 u_int32_t arg2, u_int32_t arg3); 140 static int aac_sa_get_mailbox(struct aac_softc *sc, int mb); 141 static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 142 143 struct aac_interface aac_sa_interface = { 144 aac_sa_get_fwstatus, 145 aac_sa_qnotify, 146 aac_sa_get_istatus, 147 aac_sa_clear_istatus, 148 aac_sa_set_mailbox, 149 aac_sa_get_mailbox, 150 aac_sa_set_interrupts 151 }; 152 153 /* i960Rx interface */ 154 static int aac_rx_get_fwstatus(struct aac_softc *sc); 155 static void aac_rx_qnotify(struct aac_softc *sc, int qbit); 156 static int aac_rx_get_istatus(struct aac_softc *sc); 157 static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 158 static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 159 u_int32_t arg0, u_int32_t arg1, 160 u_int32_t arg2, u_int32_t arg3); 161 static int aac_rx_get_mailbox(struct aac_softc *sc, int mb); 162 static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 163 164 struct aac_interface aac_rx_interface = { 165 aac_rx_get_fwstatus, 166 aac_rx_qnotify, 167 aac_rx_get_istatus, 168 aac_rx_clear_istatus, 169 aac_rx_set_mailbox, 170 aac_rx_get_mailbox, 171 aac_rx_set_interrupts 172 }; 173 174 /* Debugging and Diagnostics */ 175 static void aac_describe_controller(struct aac_softc *sc); 176 static char *aac_describe_code(struct aac_code_lookup *table, 177 u_int32_t code); 178 179 /* Management Interface */ 180 static d_open_t aac_open; 181 static d_close_t aac_close; 182 static d_ioctl_t aac_ioctl; 183 static d_poll_t aac_poll; 184 static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 185 static void aac_handle_aif(struct aac_softc *sc, 186 struct aac_fib *fib); 187 static int aac_rev_check(struct aac_softc *sc, caddr_t udata); 188 static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 189 static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 190 static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 191 192 #define AAC_CDEV_MAJOR 150 193 194 static struct cdevsw aac_cdevsw = { 195 "aac", /* name */ 196 AAC_CDEV_MAJOR, /* major */ 197 0, /* flags */ 198 NULL, /* port */ 199 NULL, /* clone */ 200 201 aac_open, /* open */ 202 aac_close, /* close */ 203 noread, /* read */ 204 nowrite, /* write */ 205 aac_ioctl, /* ioctl */ 206 aac_poll, /* poll */ 207 nommap, /* mmap */ 208 nostrategy, /* strategy */ 209 nodump, /* dump */ 210 nopsize /* psize */ 211 }; 212 213 DECLARE_DUMMY_MODULE(aac); 214 215 MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 216 217 /* sysctl node */ 218 SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 219 220 /* 221 * Device Interface 222 */ 223 224 /* 225 * Initialise the controller and softc 226 */ 227 int 228 aac_attach(struct aac_softc *sc) 229 { 230 int error, unit; 231 232 debug_called(1); 233 234 /* 235 * Initialise per-controller queues. 236 */ 237 aac_initq_free(sc); 238 aac_initq_ready(sc); 239 aac_initq_busy(sc); 240 aac_initq_complete(sc); 241 aac_initq_bio(sc); 242 243 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005 244 /* 245 * Initialise command-completion task. 246 */ 247 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 248 #endif 249 250 /* disable interrupts before we enable anything */ 251 AAC_MASK_INTERRUPTS(sc); 252 253 /* mark controller as suspended until we get ourselves organised */ 254 sc->aac_state |= AAC_STATE_SUSPEND; 255 256 /* 257 * Check that the firmware on the card is supported. 258 */ 259 if ((error = aac_check_firmware(sc)) != 0) 260 return(error); 261 262 /* Init the sync fib lock */ 263 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); 264 265 /* 266 * Initialise the adapter. 267 */ 268 if ((error = aac_init(sc)) != 0) 269 return(error); 270 271 /* 272 * Print a little information about the controller. 273 */ 274 aac_describe_controller(sc); 275 276 /* 277 * Register to probe our containers later. 278 */ 279 TAILQ_INIT(&sc->aac_container_tqh); 280 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 281 282 /* 283 * Lock for the AIF queue 284 */ 285 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 286 287 sc->aac_ich.ich_func = aac_startup; 288 sc->aac_ich.ich_arg = sc; 289 if (config_intrhook_establish(&sc->aac_ich) != 0) { 290 device_printf(sc->aac_dev, 291 "can't establish configuration hook\n"); 292 return(ENXIO); 293 } 294 295 /* 296 * Make the control device. 297 */ 298 unit = device_get_unit(sc->aac_dev); 299 cdevsw_add(&aac_cdevsw, -1, unit); 300 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_WHEEL, 0644, 301 "aac%d", unit); 302 #if defined(__FreeBSD__) && __FreeBSD_version > 500005 303 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 304 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 305 #endif 306 sc->aac_dev_t->si_drv1 = sc; 307 reference_dev(sc->aac_dev_t); 308 309 /* Create the AIF thread */ 310 #if defined(__FreeBSD__) && __FreeBSD_version > 500005 311 if (kthread_create((void(*)(void *))aac_host_command, sc, 312 &sc->aifthread, 0, "aac%daif", unit)) 313 #else 314 if (kthread_create((void(*)(void *))aac_host_command, sc, 315 &sc->aifthread, "aac%daif", unit)) 316 #endif 317 panic("Could not create AIF thread\n"); 318 319 /* Register the shutdown method to only be called post-dump */ 320 if ((EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, sc->aac_dev, 321 SHUTDOWN_PRI_DEFAULT)) == NULL) 322 device_printf(sc->aac_dev, "shutdown event registration failed\n"); 323 324 /* Register with CAM for the non-DASD devices */ 325 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0) 326 aac_get_bus_info(sc); 327 328 return(0); 329 } 330 331 /* 332 * Probe for containers, create disks. 333 */ 334 static void 335 aac_startup(void *arg) 336 { 337 struct aac_softc *sc; 338 struct aac_fib *fib; 339 struct aac_mntinfo *mi; 340 struct aac_mntinforesp *mir = NULL; 341 int i = 0; 342 343 debug_called(1); 344 345 sc = (struct aac_softc *)arg; 346 347 /* disconnect ourselves from the intrhook chain */ 348 config_intrhook_disestablish(&sc->aac_ich); 349 350 aac_alloc_sync_fib(sc, &fib, 0); 351 mi = (struct aac_mntinfo *)&fib->data[0]; 352 353 /* loop over possible containers */ 354 do { 355 /* request information on this container */ 356 bzero(mi, sizeof(struct aac_mntinfo)); 357 mi->Command = VM_NameServe; 358 mi->MntType = FT_FILESYS; 359 mi->MntCount = i; 360 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 361 sizeof(struct aac_mntinfo))) { 362 debug(2, "error probing container %d", i); 363 continue; 364 } 365 366 mir = (struct aac_mntinforesp *)&fib->data[0]; 367 aac_add_container(sc, mir, 0); 368 i++; 369 } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS)); 370 371 aac_release_sync_fib(sc); 372 373 /* poke the bus to actually attach the child devices */ 374 if (bus_generic_attach(sc->aac_dev)) 375 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 376 377 /* mark the controller up */ 378 sc->aac_state &= ~AAC_STATE_SUSPEND; 379 380 /* enable interrupts now */ 381 AAC_UNMASK_INTERRUPTS(sc); 382 383 /* enable the timeout watchdog */ 384 timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz); 385 } 386 387 /* 388 * Create a device to respresent a new container 389 */ 390 static void 391 aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 392 { 393 struct aac_container *co; 394 device_t child; 395 396 /* 397 * Check container volume type for validity. Note that many of 398 * the possible types may never show up. 399 */ 400 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 401 MALLOC(co, struct aac_container *, sizeof *co, M_AACBUF, 402 M_INTWAIT); 403 debug(1, "id %x name '%.16s' size %u type %d", 404 mir->MntTable[0].ObjectId, 405 mir->MntTable[0].FileSystemName, 406 mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 407 408 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) 409 device_printf(sc->aac_dev, "device_add_child failed\n"); 410 else 411 device_set_ivars(child, co); 412 device_set_desc(child, aac_describe_code(aac_container_types, 413 mir->MntTable[0].VolType)); 414 co->co_disk = child; 415 co->co_found = f; 416 bcopy(&mir->MntTable[0], &co->co_mntobj, 417 sizeof(struct aac_mntobj)); 418 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 419 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 420 AAC_LOCK_RELEASE(&sc->aac_container_lock); 421 } 422 } 423 424 /* 425 * Free all of the resources associated with (sc) 426 * 427 * Should not be called if the controller is active. 428 */ 429 void 430 aac_free(struct aac_softc *sc) 431 { 432 debug_called(1); 433 434 /* remove the control device */ 435 if (sc->aac_dev_t != NULL) 436 destroy_dev(sc->aac_dev_t); 437 438 /* throw away any FIB buffers, discard the FIB DMA tag */ 439 if (sc->aac_fibs != NULL) 440 aac_free_commands(sc); 441 if (sc->aac_fib_dmat) 442 bus_dma_tag_destroy(sc->aac_fib_dmat); 443 444 /* destroy the common area */ 445 if (sc->aac_common) { 446 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 447 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 448 sc->aac_common_dmamap); 449 } 450 if (sc->aac_common_dmat) 451 bus_dma_tag_destroy(sc->aac_common_dmat); 452 453 /* disconnect the interrupt handler */ 454 if (sc->aac_intr) 455 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 456 if (sc->aac_irq != NULL) 457 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 458 sc->aac_irq); 459 460 /* destroy data-transfer DMA tag */ 461 if (sc->aac_buffer_dmat) 462 bus_dma_tag_destroy(sc->aac_buffer_dmat); 463 464 /* destroy the parent DMA tag */ 465 if (sc->aac_parent_dmat) 466 bus_dma_tag_destroy(sc->aac_parent_dmat); 467 468 /* release the register window mapping */ 469 if (sc->aac_regs_resource != NULL) { 470 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 471 sc->aac_regs_rid, sc->aac_regs_resource); 472 } 473 cdevsw_remove(&aac_cdevsw, -1, device_get_unit(sc->aac_dev)); 474 } 475 476 /* 477 * Disconnect from the controller completely, in preparation for unload. 478 */ 479 int 480 aac_detach(device_t dev) 481 { 482 struct aac_softc *sc; 483 #if AAC_BROKEN 484 int error; 485 #endif 486 487 debug_called(1); 488 489 sc = device_get_softc(dev); 490 491 if (sc->aac_state & AAC_STATE_OPEN) 492 return(EBUSY); 493 494 #if AAC_BROKEN 495 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 496 sc->aifflags |= AAC_AIFFLAGS_EXIT; 497 wakeup(sc->aifthread); 498 tsleep(sc->aac_dev, PCATCH, "aacdch", 30 * hz); 499 } 500 501 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 502 panic("Cannot shutdown AIF thread\n"); 503 504 if ((error = aac_shutdown(dev))) 505 return(error); 506 507 aac_free(sc); 508 509 return(0); 510 #else 511 return (EBUSY); 512 #endif 513 } 514 515 /* 516 * Bring the controller down to a dormant state and detach all child devices. 517 * 518 * This function is called before detach or system shutdown. 519 * 520 * Note that we can assume that the bioq on the controller is empty, as we won't 521 * allow shutdown if any device is open. 522 */ 523 int 524 aac_shutdown(device_t dev) 525 { 526 struct aac_softc *sc; 527 struct aac_fib *fib; 528 struct aac_close_command *cc; 529 int s; 530 531 debug_called(1); 532 533 sc = device_get_softc(dev); 534 535 s = splbio(); 536 537 sc->aac_state |= AAC_STATE_SUSPEND; 538 539 /* 540 * Send a Container shutdown followed by a HostShutdown FIB to the 541 * controller to convince it that we don't want to talk to it anymore. 542 * We've been closed and all I/O completed already 543 */ 544 device_printf(sc->aac_dev, "shutting down controller..."); 545 546 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 547 cc = (struct aac_close_command *)&fib->data[0]; 548 549 bzero(cc, sizeof(struct aac_close_command)); 550 cc->Command = VM_CloseAll; 551 cc->ContainerId = 0xffffffff; 552 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 553 sizeof(struct aac_close_command))) 554 printf("FAILED.\n"); 555 else { 556 fib->data[0] = 0; 557 /* 558 * XXX Issuing this command to the controller makes it shut down 559 * but also keeps it from coming back up without a reset of the 560 * PCI bus. This is not desirable if you are just unloading the 561 * driver module with the intent to reload it later. 562 */ 563 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 564 fib, 1)) { 565 printf("FAILED.\n"); 566 } else { 567 printf("done.\n"); 568 } 569 } 570 571 AAC_MASK_INTERRUPTS(sc); 572 573 splx(s); 574 return(0); 575 } 576 577 /* 578 * Bring the controller to a quiescent state, ready for system suspend. 579 */ 580 int 581 aac_suspend(device_t dev) 582 { 583 struct aac_softc *sc; 584 int s; 585 586 debug_called(1); 587 588 sc = device_get_softc(dev); 589 590 s = splbio(); 591 592 sc->aac_state |= AAC_STATE_SUSPEND; 593 594 AAC_MASK_INTERRUPTS(sc); 595 splx(s); 596 return(0); 597 } 598 599 /* 600 * Bring the controller back to a state ready for operation. 601 */ 602 int 603 aac_resume(device_t dev) 604 { 605 struct aac_softc *sc; 606 607 debug_called(1); 608 609 sc = device_get_softc(dev); 610 611 sc->aac_state &= ~AAC_STATE_SUSPEND; 612 AAC_UNMASK_INTERRUPTS(sc); 613 return(0); 614 } 615 616 /* 617 * Take an interrupt. 618 */ 619 void 620 aac_intr(void *arg) 621 { 622 struct aac_softc *sc; 623 u_int16_t reason; 624 u_int32_t *resp_queue; 625 626 debug_called(2); 627 628 sc = (struct aac_softc *)arg; 629 630 /* 631 * Optimize the common case of adapter response interrupts. 632 * We must read from the card prior to processing the responses 633 * to ensure the clear is flushed prior to accessing the queues. 634 * Reading the queues from local memory might save us a PCI read. 635 */ 636 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 637 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 638 reason = AAC_DB_RESPONSE_READY; 639 else 640 reason = AAC_GET_ISTATUS(sc); 641 AAC_CLEAR_ISTATUS(sc, reason); 642 (void)AAC_GET_ISTATUS(sc); 643 644 /* It's not ok to return here because of races with the previous step */ 645 if (reason & AAC_DB_RESPONSE_READY) 646 aac_host_response(sc); 647 648 /* controller wants to talk to the log */ 649 if (reason & AAC_DB_PRINTF) 650 aac_print_printf(sc); 651 652 /* controller has a message for us? */ 653 if (reason & AAC_DB_COMMAND_READY) { 654 /* XXX What happens if the thread is already awake? */ 655 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 656 sc->aifflags |= AAC_AIFFLAGS_PENDING; 657 wakeup(sc->aifthread); 658 } 659 } 660 } 661 662 /* 663 * Command Processing 664 */ 665 666 /* 667 * Start as much queued I/O as possible on the controller 668 */ 669 void 670 aac_startio(struct aac_softc *sc) 671 { 672 struct aac_command *cm; 673 674 debug_called(2); 675 676 for (;;) { 677 /* 678 * Try to get a command that's been put off for lack of 679 * resources 680 */ 681 cm = aac_dequeue_ready(sc); 682 683 /* 684 * Try to build a command off the bio queue (ignore error 685 * return) 686 */ 687 if (cm == NULL) 688 aac_bio_command(sc, &cm); 689 690 /* nothing to do? */ 691 if (cm == NULL) 692 break; 693 694 /* try to give the command to the controller */ 695 if (aac_start(cm) == EBUSY) { 696 /* put it on the ready queue for later */ 697 aac_requeue_ready(cm); 698 break; 699 } 700 } 701 } 702 703 /* 704 * Deliver a command to the controller; allocate controller resources at the 705 * last moment when possible. 706 */ 707 static int 708 aac_start(struct aac_command *cm) 709 { 710 struct aac_softc *sc; 711 int error; 712 713 debug_called(2); 714 715 sc = cm->cm_sc; 716 717 /* get the command mapped */ 718 aac_map_command(cm); 719 720 /* fix up the address values in the FIB */ 721 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 722 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 723 724 /* save a pointer to the command for speedy reverse-lookup */ 725 cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical 726 * address issue */ 727 /* put the FIB on the outbound queue */ 728 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 729 return(error); 730 } 731 732 /* 733 * Handle notification of one or more FIBs coming from the controller. 734 */ 735 static void 736 aac_host_command(struct aac_softc *sc) 737 { 738 struct aac_fib *fib; 739 u_int32_t fib_size; 740 int size; 741 742 debug_called(2); 743 744 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 745 746 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 747 if (!(sc->aifflags & AAC_AIFFLAGS_PENDING)) 748 tsleep(sc->aifthread, 0, "aifthd", 15 * hz); 749 750 sc->aifflags &= ~AAC_AIFFLAGS_PENDING; 751 for (;;) { 752 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 753 &fib_size, &fib)) 754 break; /* nothing to do */ 755 756 AAC_PRINT_FIB(sc, fib); 757 758 switch (fib->Header.Command) { 759 case AifRequest: 760 aac_handle_aif(sc, fib); 761 break; 762 default: 763 device_printf(sc->aac_dev, "unknown command " 764 "from controller\n"); 765 break; 766 } 767 768 /* Return the AIF to the controller. */ 769 if ((fib->Header.XferState == 0) || 770 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 771 break; 772 773 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 774 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 775 *(AAC_FSAStatus*)fib->data = ST_OK; 776 777 /* XXX Compute the Size field? */ 778 size = fib->Header.Size; 779 if (size > sizeof(struct aac_fib)) { 780 size = sizeof(struct aac_fib); 781 fib->Header.Size = size; 782 } 783 /* 784 * Since we did not generate this command, it 785 * cannot go through the normal 786 * enqueue->startio chain. 787 */ 788 aac_enqueue_response(sc, 789 AAC_ADAP_NORM_RESP_QUEUE, 790 fib); 791 } 792 } 793 } 794 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 795 wakeup(sc->aac_dev); 796 797 #if defined(__FreeBSD__) && __FreeBSD_version > 500005 798 mtx_lock(&Giant); 799 #endif 800 kthread_exit(); 801 } 802 803 /* 804 * Handle notification of one or more FIBs completed by the controller 805 */ 806 static void 807 aac_host_response(struct aac_softc *sc) 808 { 809 struct aac_command *cm; 810 struct aac_fib *fib; 811 u_int32_t fib_size; 812 813 debug_called(2); 814 815 for (;;) { 816 /* look for completed FIBs on our queue */ 817 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 818 &fib)) 819 break; /* nothing to do */ 820 821 /* get the command, unmap and queue for later processing */ 822 cm = (struct aac_command *)fib->Header.SenderData; 823 if (cm == NULL) { 824 AAC_PRINT_FIB(sc, fib); 825 } else { 826 aac_remove_busy(cm); 827 aac_unmap_command(cm); /* XXX defer? */ 828 aac_enqueue_complete(cm); 829 } 830 } 831 832 /* handle completion processing */ 833 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005 834 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 835 #else 836 aac_complete(sc, 0); 837 #endif 838 } 839 840 /* 841 * Process completed commands. 842 */ 843 static void 844 aac_complete(void *context, int pending) 845 { 846 struct aac_softc *sc; 847 struct aac_command *cm; 848 849 debug_called(2); 850 851 sc = (struct aac_softc *)context; 852 853 /* pull completed commands off the queue */ 854 for (;;) { 855 cm = aac_dequeue_complete(sc); 856 if (cm == NULL) 857 break; 858 cm->cm_flags |= AAC_CMD_COMPLETED; 859 860 /* is there a completion handler? */ 861 if (cm->cm_complete != NULL) { 862 cm->cm_complete(cm); 863 } else { 864 /* assume that someone is sleeping on this command */ 865 wakeup(cm); 866 } 867 } 868 869 /* see if we can start some more I/O */ 870 aac_startio(sc); 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_dev->si_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_blockread *br; 901 struct aac_blockwrite *bw; 902 struct aac_disk *ad; 903 struct bio *bp; 904 905 debug_called(2); 906 907 /* get the resources we will need */ 908 cm = NULL; 909 if ((bp = aac_dequeue_bio(sc)) == NULL) 910 goto fail; 911 if (aac_alloc_command(sc, &cm)) /* get a command */ 912 goto fail; 913 914 /* fill out the command */ 915 cm->cm_data = (void *)bp->bio_data; 916 cm->cm_datalen = bp->bio_bcount; 917 cm->cm_complete = aac_bio_complete; 918 cm->cm_private = bp; 919 cm->cm_timestamp = time_second; 920 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 921 922 /* build the FIB */ 923 fib = cm->cm_fib; 924 fib->Header.XferState = 925 AAC_FIBSTATE_HOSTOWNED | 926 AAC_FIBSTATE_INITIALISED | 927 AAC_FIBSTATE_EMPTY | 928 AAC_FIBSTATE_FROMHOST | 929 AAC_FIBSTATE_REXPECTED | 930 AAC_FIBSTATE_NORM | 931 AAC_FIBSTATE_ASYNC | 932 AAC_FIBSTATE_FAST_RESPONSE; 933 fib->Header.Command = ContainerCommand; 934 fib->Header.Size = sizeof(struct aac_fib_header); 935 936 /* build the read/write request */ 937 ad = (struct aac_disk *)bp->bio_dev->si_drv1; 938 if (BIO_IS_READ(bp)) { 939 br = (struct aac_blockread *)&fib->data[0]; 940 br->Command = VM_CtBlockRead; 941 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 942 br->BlockNumber = bp->bio_pblkno; 943 br->ByteCount = bp->bio_bcount; 944 fib->Header.Size += sizeof(struct aac_blockread); 945 cm->cm_sgtable = &br->SgMap; 946 cm->cm_flags |= AAC_CMD_DATAIN; 947 } else { 948 bw = (struct aac_blockwrite *)&fib->data[0]; 949 bw->Command = VM_CtBlockWrite; 950 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 951 bw->BlockNumber = bp->bio_pblkno; 952 bw->ByteCount = bp->bio_bcount; 953 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 954 fib->Header.Size += sizeof(struct aac_blockwrite); 955 cm->cm_flags |= AAC_CMD_DATAOUT; 956 cm->cm_sgtable = &bw->SgMap; 957 } 958 959 *cmp = cm; 960 return(0); 961 962 fail: 963 if (bp != NULL) 964 aac_enqueue_bio(sc, bp); 965 if (cm != NULL) 966 aac_release_command(cm); 967 return(ENOMEM); 968 } 969 970 /* 971 * Handle a bio-instigated command that has been completed. 972 */ 973 static void 974 aac_bio_complete(struct aac_command *cm) 975 { 976 struct aac_blockread_response *brr; 977 struct aac_blockwrite_response *bwr; 978 struct bio *bp; 979 AAC_FSAStatus status; 980 981 /* fetch relevant status and then release the command */ 982 bp = (struct bio *)cm->cm_private; 983 if (BIO_IS_READ(bp)) { 984 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 985 status = brr->Status; 986 } else { 987 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 988 status = bwr->Status; 989 } 990 aac_release_command(cm); 991 992 /* fix up the bio based on status */ 993 if (status == ST_OK) { 994 bp->bio_resid = 0; 995 } else { 996 bp->bio_error = EIO; 997 bp->bio_flags |= BIO_ERROR; 998 /* pass an error string out to the disk layer */ 999 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 1000 status); 1001 } 1002 aac_biodone(bp); 1003 } 1004 1005 /* 1006 * Dump a block of data to the controller. If the queue is full, tell the 1007 * caller to hold off and wait for the queue to drain. 1008 */ 1009 int 1010 aac_dump_enqueue(struct aac_disk *ad, u_int32_t lba, void *data, int dumppages) 1011 { 1012 struct aac_softc *sc; 1013 struct aac_command *cm; 1014 struct aac_fib *fib; 1015 struct aac_blockwrite *bw; 1016 1017 sc = ad->ad_controller; 1018 cm = NULL; 1019 1020 if (aac_alloc_command(sc, &cm)) 1021 return (EBUSY); 1022 1023 /* fill out the command */ 1024 cm->cm_data = data; 1025 cm->cm_datalen = dumppages * PAGE_SIZE; 1026 cm->cm_complete = NULL; 1027 cm->cm_private = NULL; 1028 cm->cm_timestamp = time_second; 1029 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1030 1031 /* build the FIB */ 1032 fib = cm->cm_fib; 1033 fib->Header.XferState = 1034 AAC_FIBSTATE_HOSTOWNED | 1035 AAC_FIBSTATE_INITIALISED | 1036 AAC_FIBSTATE_FROMHOST | 1037 AAC_FIBSTATE_REXPECTED | 1038 AAC_FIBSTATE_NORM; 1039 fib->Header.Command = ContainerCommand; 1040 fib->Header.Size = sizeof(struct aac_fib_header); 1041 1042 bw = (struct aac_blockwrite *)&fib->data[0]; 1043 bw->Command = VM_CtBlockWrite; 1044 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 1045 bw->BlockNumber = lba; 1046 bw->ByteCount = dumppages * PAGE_SIZE; 1047 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 1048 fib->Header.Size += sizeof(struct aac_blockwrite); 1049 cm->cm_flags |= AAC_CMD_DATAOUT; 1050 cm->cm_sgtable = &bw->SgMap; 1051 1052 return (aac_start(cm)); 1053 } 1054 1055 /* 1056 * Wait for the card's queue to drain when dumping. Also check for monitor 1057 * printf's 1058 */ 1059 void 1060 aac_dump_complete(struct aac_softc *sc) 1061 { 1062 struct aac_fib *fib; 1063 struct aac_command *cm; 1064 u_int16_t reason; 1065 u_int32_t pi, ci, fib_size; 1066 1067 do { 1068 reason = AAC_GET_ISTATUS(sc); 1069 if (reason & AAC_DB_RESPONSE_READY) { 1070 AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY); 1071 for (;;) { 1072 if (aac_dequeue_fib(sc, 1073 AAC_HOST_NORM_RESP_QUEUE, 1074 &fib_size, &fib)) 1075 break; 1076 cm = (struct aac_command *) 1077 fib->Header.SenderData; 1078 if (cm == NULL) 1079 AAC_PRINT_FIB(sc, fib); 1080 else { 1081 aac_remove_busy(cm); 1082 aac_unmap_command(cm); 1083 aac_enqueue_complete(cm); 1084 aac_release_command(cm); 1085 } 1086 } 1087 } 1088 if (reason & AAC_DB_PRINTF) { 1089 AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF); 1090 aac_print_printf(sc); 1091 } 1092 pi = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][ 1093 AAC_PRODUCER_INDEX]; 1094 ci = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][ 1095 AAC_CONSUMER_INDEX]; 1096 } while (ci != pi); 1097 1098 return; 1099 } 1100 1101 /* 1102 * Submit a command to the controller, return when it completes. 1103 * XXX This is very dangerous! If the card has gone out to lunch, we could 1104 * be stuck here forever. At the same time, signals are not caught 1105 * because there is a risk that a signal could wakeup the tsleep before 1106 * the card has a chance to complete the command. The passed in timeout 1107 * is ignored for the same reason. Since there is no way to cancel a 1108 * command in progress, we should probably create a 'dead' queue where 1109 * commands go that have been interrupted/timed-out/etc, that keeps them 1110 * out of the free pool. That way, if the card is just slow, it won't 1111 * spam the memory of a command that has been recycled. 1112 */ 1113 static int 1114 aac_wait_command(struct aac_command *cm, int timeout) 1115 { 1116 int s, error = 0; 1117 1118 debug_called(2); 1119 1120 /* Put the command on the ready queue and get things going */ 1121 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 1122 aac_enqueue_ready(cm); 1123 aac_startio(cm->cm_sc); 1124 s = splbio(); 1125 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1126 error = tsleep(cm, 0, "aacwait", 0); 1127 } 1128 splx(s); 1129 return(error); 1130 } 1131 1132 /* 1133 *Command Buffer Management 1134 */ 1135 1136 /* 1137 * Allocate a command. 1138 */ 1139 int 1140 aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 1141 { 1142 struct aac_command *cm; 1143 1144 debug_called(3); 1145 1146 if ((cm = aac_dequeue_free(sc)) == NULL) 1147 return(ENOMEM); 1148 1149 *cmp = cm; 1150 return(0); 1151 } 1152 1153 /* 1154 * Release a command back to the freelist. 1155 */ 1156 void 1157 aac_release_command(struct aac_command *cm) 1158 { 1159 debug_called(3); 1160 1161 /* (re)initialise the command/FIB */ 1162 cm->cm_sgtable = NULL; 1163 cm->cm_flags = 0; 1164 cm->cm_complete = NULL; 1165 cm->cm_private = NULL; 1166 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 1167 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 1168 cm->cm_fib->Header.Flags = 0; 1169 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 1170 1171 /* 1172 * These are duplicated in aac_start to cover the case where an 1173 * intermediate stage may have destroyed them. They're left 1174 * initialised here for debugging purposes only. 1175 */ 1176 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 1177 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; 1178 cm->cm_fib->Header.SenderData = 0; 1179 1180 aac_enqueue_free(cm); 1181 } 1182 1183 /* 1184 * Map helper for command/FIB allocation. 1185 */ 1186 static void 1187 aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1188 { 1189 struct aac_softc *sc; 1190 1191 sc = (struct aac_softc *)arg; 1192 1193 debug_called(3); 1194 1195 sc->aac_fibphys = segs[0].ds_addr; 1196 } 1197 1198 /* 1199 * Allocate and initialise commands/FIBs for this adapter. 1200 */ 1201 static int 1202 aac_alloc_commands(struct aac_softc *sc) 1203 { 1204 struct aac_command *cm; 1205 int i; 1206 1207 debug_called(1); 1208 1209 /* allocate the FIBs in DMAable memory and load them */ 1210 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs, 1211 BUS_DMA_NOWAIT, &sc->aac_fibmap)) { 1212 return(ENOMEM); 1213 } 1214 1215 bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs, 1216 AAC_FIB_COUNT * sizeof(struct aac_fib), 1217 aac_map_command_helper, sc, 0); 1218 1219 /* initialise constant fields in the command structure */ 1220 bzero(sc->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); 1221 for (i = 0; i < AAC_FIB_COUNT; i++) { 1222 cm = &sc->aac_command[i]; 1223 cm->cm_sc = sc; 1224 cm->cm_fib = sc->aac_fibs + i; 1225 cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib)); 1226 1227 if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap)) 1228 aac_release_command(cm); 1229 } 1230 return(0); 1231 } 1232 1233 /* 1234 * Free FIBs owned by this adapter. 1235 */ 1236 static void 1237 aac_free_commands(struct aac_softc *sc) 1238 { 1239 int i; 1240 1241 debug_called(1); 1242 1243 for (i = 0; i < AAC_FIB_COUNT; i++) 1244 bus_dmamap_destroy(sc->aac_buffer_dmat, 1245 sc->aac_command[i].cm_datamap); 1246 1247 bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap); 1248 bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap); 1249 } 1250 1251 /* 1252 * Command-mapping helper function - populate this command's s/g table. 1253 */ 1254 static void 1255 aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1256 { 1257 struct aac_command *cm; 1258 struct aac_fib *fib; 1259 struct aac_sg_table *sg; 1260 int i; 1261 1262 debug_called(3); 1263 1264 cm = (struct aac_command *)arg; 1265 fib = cm->cm_fib; 1266 1267 /* find the s/g table */ 1268 sg = cm->cm_sgtable; 1269 1270 /* copy into the FIB */ 1271 if (sg != NULL) { 1272 sg->SgCount = nseg; 1273 for (i = 0; i < nseg; i++) { 1274 sg->SgEntry[i].SgAddress = segs[i].ds_addr; 1275 sg->SgEntry[i].SgByteCount = segs[i].ds_len; 1276 } 1277 /* update the FIB size for the s/g count */ 1278 fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 1279 } 1280 1281 } 1282 1283 /* 1284 * Map a command into controller-visible space. 1285 */ 1286 static void 1287 aac_map_command(struct aac_command *cm) 1288 { 1289 struct aac_softc *sc; 1290 1291 debug_called(2); 1292 1293 sc = cm->cm_sc; 1294 1295 /* don't map more than once */ 1296 if (cm->cm_flags & AAC_CMD_MAPPED) 1297 return; 1298 1299 if (cm->cm_datalen != 0) { 1300 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 1301 cm->cm_data, cm->cm_datalen, 1302 aac_map_command_sg, cm, 0); 1303 1304 if (cm->cm_flags & AAC_CMD_DATAIN) 1305 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1306 BUS_DMASYNC_PREREAD); 1307 if (cm->cm_flags & AAC_CMD_DATAOUT) 1308 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1309 BUS_DMASYNC_PREWRITE); 1310 } 1311 cm->cm_flags |= AAC_CMD_MAPPED; 1312 } 1313 1314 /* 1315 * Unmap a command from controller-visible space. 1316 */ 1317 static void 1318 aac_unmap_command(struct aac_command *cm) 1319 { 1320 struct aac_softc *sc; 1321 1322 debug_called(2); 1323 1324 sc = cm->cm_sc; 1325 1326 if (!(cm->cm_flags & AAC_CMD_MAPPED)) 1327 return; 1328 1329 if (cm->cm_datalen != 0) { 1330 if (cm->cm_flags & AAC_CMD_DATAIN) 1331 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1332 BUS_DMASYNC_POSTREAD); 1333 if (cm->cm_flags & AAC_CMD_DATAOUT) 1334 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 1335 BUS_DMASYNC_POSTWRITE); 1336 1337 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 1338 } 1339 cm->cm_flags &= ~AAC_CMD_MAPPED; 1340 } 1341 1342 /* 1343 * Hardware Interface 1344 */ 1345 1346 /* 1347 * Initialise the adapter. 1348 */ 1349 static void 1350 aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1351 { 1352 struct aac_softc *sc; 1353 1354 debug_called(1); 1355 1356 sc = (struct aac_softc *)arg; 1357 1358 sc->aac_common_busaddr = segs[0].ds_addr; 1359 } 1360 1361 static int 1362 aac_check_firmware(struct aac_softc *sc) 1363 { 1364 u_int32_t major, minor, options; 1365 1366 debug_called(1); 1367 1368 /* 1369 * Retrieve the firmware version numbers. Dell PERC2/QC cards with 1370 * firmware version 1.x are not compatible with this driver. 1371 */ 1372 if (sc->flags & AAC_FLAGS_PERC2QC) { 1373 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 1374 NULL)) { 1375 device_printf(sc->aac_dev, 1376 "Error reading firmware version\n"); 1377 return (EIO); 1378 } 1379 1380 /* These numbers are stored as ASCII! */ 1381 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30; 1382 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30; 1383 if (major == 1) { 1384 device_printf(sc->aac_dev, 1385 "Firmware version %d.%d is not supported.\n", 1386 major, minor); 1387 return (EINVAL); 1388 } 1389 } 1390 1391 /* 1392 * Retrieve the capabilities/supported options word so we know what 1393 * work-arounds to enable. 1394 */ 1395 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) { 1396 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 1397 return (EIO); 1398 } 1399 options = AAC_GET_MAILBOX(sc, 1); 1400 sc->supported_options = options; 1401 1402 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 && 1403 (sc->flags & AAC_FLAGS_NO4GB) == 0) 1404 sc->flags |= AAC_FLAGS_4GB_WINDOW; 1405 if (options & AAC_SUPPORTED_NONDASD) 1406 sc->flags |= AAC_FLAGS_ENABLE_CAM; 1407 1408 return (0); 1409 } 1410 1411 static int 1412 aac_init(struct aac_softc *sc) 1413 { 1414 struct aac_adapter_init *ip; 1415 time_t then; 1416 u_int32_t code; 1417 u_int8_t *qaddr; 1418 int error; 1419 1420 debug_called(1); 1421 1422 /* 1423 * First wait for the adapter to come ready. 1424 */ 1425 then = time_second; 1426 do { 1427 code = AAC_GET_FWSTATUS(sc); 1428 if (code & AAC_SELF_TEST_FAILED) { 1429 device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 1430 return(ENXIO); 1431 } 1432 if (code & AAC_KERNEL_PANIC) { 1433 device_printf(sc->aac_dev, 1434 "FATAL: controller kernel panic\n"); 1435 return(ENXIO); 1436 } 1437 if (time_second > (then + AAC_BOOT_TIMEOUT)) { 1438 device_printf(sc->aac_dev, 1439 "FATAL: controller not coming ready, " 1440 "status %x\n", code); 1441 return(ENXIO); 1442 } 1443 } while (!(code & AAC_UP_AND_RUNNING)); 1444 1445 error = ENOMEM; 1446 /* 1447 * Create DMA tag for mapping buffers into controller-addressable space. 1448 */ 1449 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1450 1, 0, /* algnmnt, boundary */ 1451 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1452 BUS_SPACE_MAXADDR, /* highaddr */ 1453 NULL, NULL, /* filter, filterarg */ 1454 MAXBSIZE, /* maxsize */ 1455 AAC_MAXSGENTRIES, /* nsegments */ 1456 MAXBSIZE, /* maxsegsize */ 1457 BUS_DMA_ALLOCNOW, /* flags */ 1458 &sc->aac_buffer_dmat)) { 1459 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n"); 1460 goto out; 1461 } 1462 1463 /* 1464 * Create DMA tag for mapping FIBs into controller-addressable space.. 1465 */ 1466 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1467 1, 0, /* algnmnt, boundary */ 1468 (sc->flags & AAC_FLAGS_4GB_WINDOW) ? 1469 BUS_SPACE_MAXADDR_32BIT : 1470 0x7fffffff, /* lowaddr */ 1471 BUS_SPACE_MAXADDR, /* highaddr */ 1472 NULL, NULL, /* filter, filterarg */ 1473 AAC_FIB_COUNT * 1474 sizeof(struct aac_fib), /* maxsize */ 1475 1, /* nsegments */ 1476 AAC_FIB_COUNT * 1477 sizeof(struct aac_fib), /* maxsegsize */ 1478 BUS_DMA_ALLOCNOW, /* flags */ 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 &sc->aac_common_dmat)) { 1499 device_printf(sc->aac_dev, 1500 "can't allocate common structure DMA tag\n"); 1501 goto out; 1502 } 1503 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 1504 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 1505 device_printf(sc->aac_dev, "can't allocate common structure\n"); 1506 goto out; 1507 } 1508 /* 1509 * Work around a bug in the 2120 and 2200 that cannot DMA commands 1510 * below address 8192 in physical memory. 1511 * XXX If the padding is not needed, can it be put to use instead 1512 * of ignored? 1513 */ 1514 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 1515 sc->aac_common, 8192 + sizeof(*sc->aac_common), 1516 aac_common_map, sc, 0); 1517 1518 if (sc->aac_common_busaddr < 8192) { 1519 sc->aac_common = 1520 (struct aac_common *)((uint8_t *)sc->aac_common + 8192); 1521 sc->aac_common_busaddr += 8192; 1522 } 1523 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1524 1525 /* Allocate some FIBs and associated command structs */ 1526 if (aac_alloc_commands(sc) != 0) 1527 goto out; 1528 1529 /* 1530 * Fill in the init structure. This tells the adapter about the 1531 * physical location of various important shared data structures. 1532 */ 1533 ip = &sc->aac_common->ac_init; 1534 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1535 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1536 1537 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1538 offsetof(struct aac_common, ac_fibs); 1539 ip->AdapterFibsVirtualAddress = (aac_phys_addr_t)&sc->aac_common->ac_fibs[0]; 1540 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1541 ip->AdapterFibAlign = sizeof(struct aac_fib); 1542 1543 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1544 offsetof(struct aac_common, ac_printf); 1545 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1546 1547 /* The adapter assumes that pages are 4K in size */ 1548 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1549 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1550 1551 /* 1552 * Initialise FIB queues. Note that it appears that the layout of the 1553 * indexes and the segmentation of the entries may be mandated by the 1554 * adapter, which is only told about the base of the queue index fields. 1555 * 1556 * The initial values of the indices are assumed to inform the adapter 1557 * of the sizes of the respective queues, and theoretically it could 1558 * work out the entire layout of the queue structures from this. We 1559 * take the easy route and just lay this area out like everyone else 1560 * does. 1561 * 1562 * The Linux driver uses a much more complex scheme whereby several 1563 * header records are kept for each queue. We use a couple of generic 1564 * list manipulation functions which 'know' the size of each list by 1565 * virtue of a table. 1566 */ 1567 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1568 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1569 sc->aac_queues = (struct aac_queue_table *)qaddr; 1570 ip->CommHeaderAddress = sc->aac_common_busaddr + 1571 ((u_int32_t)sc->aac_queues - 1572 (u_int32_t)sc->aac_common); 1573 bzero(sc->aac_queues, sizeof(struct aac_queue_table)); 1574 1575 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1576 AAC_HOST_NORM_CMD_ENTRIES; 1577 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1578 AAC_HOST_NORM_CMD_ENTRIES; 1579 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1580 AAC_HOST_HIGH_CMD_ENTRIES; 1581 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1582 AAC_HOST_HIGH_CMD_ENTRIES; 1583 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1584 AAC_ADAP_NORM_CMD_ENTRIES; 1585 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1586 AAC_ADAP_NORM_CMD_ENTRIES; 1587 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1588 AAC_ADAP_HIGH_CMD_ENTRIES; 1589 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1590 AAC_ADAP_HIGH_CMD_ENTRIES; 1591 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1592 AAC_HOST_NORM_RESP_ENTRIES; 1593 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1594 AAC_HOST_NORM_RESP_ENTRIES; 1595 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1596 AAC_HOST_HIGH_RESP_ENTRIES; 1597 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1598 AAC_HOST_HIGH_RESP_ENTRIES; 1599 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1600 AAC_ADAP_NORM_RESP_ENTRIES; 1601 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1602 AAC_ADAP_NORM_RESP_ENTRIES; 1603 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1604 AAC_ADAP_HIGH_RESP_ENTRIES; 1605 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1606 AAC_ADAP_HIGH_RESP_ENTRIES; 1607 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1608 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1609 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1610 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1611 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1612 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1613 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1614 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1615 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1616 &sc->aac_queues->qt_HostNormRespQueue[0]; 1617 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1618 &sc->aac_queues->qt_HostHighRespQueue[0]; 1619 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1620 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1621 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1622 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1623 1624 /* 1625 * Do controller-type-specific initialisation 1626 */ 1627 switch (sc->aac_hwif) { 1628 case AAC_HWIF_I960RX: 1629 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1630 break; 1631 } 1632 1633 /* 1634 * Give the init structure to the controller. 1635 */ 1636 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1637 sc->aac_common_busaddr + 1638 offsetof(struct aac_common, ac_init), 0, 0, 0, 1639 NULL)) { 1640 device_printf(sc->aac_dev, 1641 "error establishing init structure\n"); 1642 error = EIO; 1643 goto out; 1644 } 1645 1646 error = 0; 1647 out: 1648 return(error); 1649 } 1650 1651 /* 1652 * Send a synchronous command to the controller and wait for a result. 1653 */ 1654 static int 1655 aac_sync_command(struct aac_softc *sc, u_int32_t command, 1656 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1657 u_int32_t *sp) 1658 { 1659 time_t then; 1660 u_int32_t status; 1661 1662 debug_called(3); 1663 1664 /* populate the mailbox */ 1665 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1666 1667 /* ensure the sync command doorbell flag is cleared */ 1668 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1669 1670 /* then set it to signal the adapter */ 1671 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1672 1673 /* spin waiting for the command to complete */ 1674 then = time_second; 1675 do { 1676 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1677 debug(1, "timed out"); 1678 return(EIO); 1679 } 1680 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1681 1682 /* clear the completion flag */ 1683 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1684 1685 /* get the command status */ 1686 status = AAC_GET_MAILBOX(sc, 0); 1687 if (sp != NULL) 1688 *sp = status; 1689 return(0); 1690 } 1691 1692 /* 1693 * Grab the sync fib area. 1694 */ 1695 int 1696 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1697 { 1698 1699 /* 1700 * If the force flag is set, the system is shutting down, or in 1701 * trouble. Ignore the mutex. 1702 */ 1703 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1704 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1705 1706 *fib = &sc->aac_common->ac_sync_fib; 1707 1708 return (1); 1709 } 1710 1711 /* 1712 * Release the sync fib area. 1713 */ 1714 void 1715 aac_release_sync_fib(struct aac_softc *sc) 1716 { 1717 1718 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1719 } 1720 1721 /* 1722 * Send a synchronous FIB to the controller and wait for a result. 1723 */ 1724 int 1725 aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1726 struct aac_fib *fib, u_int16_t datasize) 1727 { 1728 debug_called(3); 1729 1730 if (datasize > AAC_FIB_DATASIZE) 1731 return(EINVAL); 1732 1733 /* 1734 * Set up the sync FIB 1735 */ 1736 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1737 AAC_FIBSTATE_INITIALISED | 1738 AAC_FIBSTATE_EMPTY; 1739 fib->Header.XferState |= xferstate; 1740 fib->Header.Command = command; 1741 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1742 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1743 fib->Header.SenderSize = sizeof(struct aac_fib); 1744 fib->Header.SenderFibAddress = (u_int32_t)fib; 1745 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1746 offsetof(struct aac_common, 1747 ac_sync_fib); 1748 1749 /* 1750 * Give the FIB to the controller, wait for a response. 1751 */ 1752 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1753 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1754 debug(2, "IO error"); 1755 return(EIO); 1756 } 1757 1758 return (0); 1759 } 1760 1761 /* 1762 * Adapter-space FIB queue manipulation 1763 * 1764 * Note that the queue implementation here is a little funky; neither the PI or 1765 * CI will ever be zero. This behaviour is a controller feature. 1766 */ 1767 static struct { 1768 int size; 1769 int notify; 1770 } aac_qinfo[] = { 1771 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1772 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1773 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1774 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1775 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1776 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1777 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1778 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1779 }; 1780 1781 /* 1782 * Atomically insert an entry into the nominated queue, returns 0 on success or 1783 * EBUSY if the queue is full. 1784 * 1785 * Note: it would be more efficient to defer notifying the controller in 1786 * the case where we may be inserting several entries in rapid succession, 1787 * but implementing this usefully may be difficult (it would involve a 1788 * separate queue/notify interface). 1789 */ 1790 static int 1791 aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1792 { 1793 u_int32_t pi, ci; 1794 int s, error; 1795 u_int32_t fib_size; 1796 u_int32_t fib_addr; 1797 1798 debug_called(3); 1799 1800 fib_size = cm->cm_fib->Header.Size; 1801 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1802 1803 s = splbio(); 1804 1805 /* get the producer/consumer indices */ 1806 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1807 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1808 1809 /* wrap the queue? */ 1810 if (pi >= aac_qinfo[queue].size) 1811 pi = 0; 1812 1813 /* check for queue full */ 1814 if ((pi + 1) == ci) { 1815 error = EBUSY; 1816 goto out; 1817 } 1818 1819 /* populate queue entry */ 1820 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1821 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1822 1823 /* update producer index */ 1824 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1825 1826 /* 1827 * To avoid a race with its completion interrupt, place this command on 1828 * the busy queue prior to advertising it to the controller. 1829 */ 1830 aac_enqueue_busy(cm); 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 splx(s); 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 s, error; 1853 int notify; 1854 1855 debug_called(3); 1856 1857 s = splbio(); 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 notify = 0; 1870 if (ci == pi + 1) 1871 notify++; 1872 1873 /* wrap the queue? */ 1874 if (ci >= aac_qinfo[queue].size) 1875 ci = 0; 1876 1877 /* fetch the entry */ 1878 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1879 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + 1880 ci)->aq_fib_addr; 1881 1882 /* 1883 * Is this a fast response? If it is, update the fib fields in 1884 * local memory so the whole fib doesn't have to be DMA'd back up. 1885 */ 1886 if (*(uintptr_t *)fib_addr & 0x01) { 1887 *(uintptr_t *)fib_addr &= ~0x01; 1888 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1889 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1890 } 1891 /* update consumer index */ 1892 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1893 1894 /* if we have made the queue un-full, notify the adapter */ 1895 if (notify && (aac_qinfo[queue].notify != 0)) 1896 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1897 error = 0; 1898 1899 out: 1900 splx(s); 1901 return(error); 1902 } 1903 1904 /* 1905 * Put our response to an Adapter Initialed Fib on the response queue 1906 */ 1907 static int 1908 aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1909 { 1910 u_int32_t pi, ci; 1911 int s, error; 1912 u_int32_t fib_size; 1913 u_int32_t fib_addr; 1914 1915 debug_called(1); 1916 1917 /* Tell the adapter where the FIB is */ 1918 fib_size = fib->Header.Size; 1919 fib_addr = fib->Header.SenderFibAddress; 1920 fib->Header.ReceiverFibAddress = fib_addr; 1921 1922 s = splbio(); 1923 1924 /* get the producer/consumer indices */ 1925 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1926 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1927 1928 /* wrap the queue? */ 1929 if (pi >= aac_qinfo[queue].size) 1930 pi = 0; 1931 1932 /* check for queue full */ 1933 if ((pi + 1) == ci) { 1934 error = EBUSY; 1935 goto out; 1936 } 1937 1938 /* populate queue entry */ 1939 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1940 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1941 1942 /* update producer index */ 1943 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1944 1945 /* notify the adapter if we know how */ 1946 if (aac_qinfo[queue].notify != 0) 1947 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1948 1949 error = 0; 1950 1951 out: 1952 splx(s); 1953 return(error); 1954 } 1955 1956 /* 1957 * Check for commands that have been outstanding for a suspiciously long time, 1958 * and complain about them. 1959 */ 1960 static void 1961 aac_timeout(struct aac_softc *sc) 1962 { 1963 int s; 1964 struct aac_command *cm; 1965 time_t deadline; 1966 1967 #if 0 1968 /* simulate an interrupt to handle possibly-missed interrupts */ 1969 /* 1970 * XXX This was done to work around another bug which has since been 1971 * fixed. It is dangerous anyways because you don't want multiple 1972 * threads in the interrupt handler at the same time! If calling 1973 * is deamed neccesary in the future, proper mutexes must be used. 1974 */ 1975 s = splbio(); 1976 aac_intr(sc); 1977 splx(s); 1978 1979 /* kick the I/O queue to restart it in the case of deadlock */ 1980 aac_startio(sc); 1981 #endif 1982 1983 /* 1984 * traverse the busy command list, bitch about late commands once 1985 * only. 1986 */ 1987 deadline = time_second - AAC_CMD_TIMEOUT; 1988 s = splbio(); 1989 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1990 if ((cm->cm_timestamp < deadline) 1991 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1992 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1993 device_printf(sc->aac_dev, 1994 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 1995 cm, (int)(time_second-cm->cm_timestamp)); 1996 AAC_PRINT_FIB(sc, cm->cm_fib); 1997 } 1998 } 1999 splx(s); 2000 2001 /* reset the timer for next time */ 2002 timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz); 2003 return; 2004 } 2005 2006 /* 2007 * Interface Function Vectors 2008 */ 2009 2010 /* 2011 * Read the current firmware status word. 2012 */ 2013 static int 2014 aac_sa_get_fwstatus(struct aac_softc *sc) 2015 { 2016 debug_called(3); 2017 2018 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 2019 } 2020 2021 static int 2022 aac_rx_get_fwstatus(struct aac_softc *sc) 2023 { 2024 debug_called(3); 2025 2026 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2027 } 2028 2029 static int 2030 aac_fa_get_fwstatus(struct aac_softc *sc) 2031 { 2032 int val; 2033 2034 debug_called(3); 2035 2036 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2037 return (val); 2038 } 2039 2040 /* 2041 * Notify the controller of a change in a given queue 2042 */ 2043 2044 static void 2045 aac_sa_qnotify(struct aac_softc *sc, int qbit) 2046 { 2047 debug_called(3); 2048 2049 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2050 } 2051 2052 static void 2053 aac_rx_qnotify(struct aac_softc *sc, int qbit) 2054 { 2055 debug_called(3); 2056 2057 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2058 } 2059 2060 static void 2061 aac_fa_qnotify(struct aac_softc *sc, int qbit) 2062 { 2063 debug_called(3); 2064 2065 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2066 AAC_FA_HACK(sc); 2067 } 2068 2069 /* 2070 * Get the interrupt reason bits 2071 */ 2072 static int 2073 aac_sa_get_istatus(struct aac_softc *sc) 2074 { 2075 debug_called(3); 2076 2077 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2078 } 2079 2080 static int 2081 aac_rx_get_istatus(struct aac_softc *sc) 2082 { 2083 debug_called(3); 2084 2085 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2086 } 2087 2088 static int 2089 aac_fa_get_istatus(struct aac_softc *sc) 2090 { 2091 int val; 2092 2093 debug_called(3); 2094 2095 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2096 return (val); 2097 } 2098 2099 /* 2100 * Clear some interrupt reason bits 2101 */ 2102 static void 2103 aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2104 { 2105 debug_called(3); 2106 2107 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2108 } 2109 2110 static void 2111 aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2112 { 2113 debug_called(3); 2114 2115 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2116 } 2117 2118 static void 2119 aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2120 { 2121 debug_called(3); 2122 2123 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2124 AAC_FA_HACK(sc); 2125 } 2126 2127 /* 2128 * Populate the mailbox and set the command word 2129 */ 2130 static void 2131 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2132 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2133 { 2134 debug_called(4); 2135 2136 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2137 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2138 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2139 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2140 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2141 } 2142 2143 static void 2144 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2145 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2146 { 2147 debug_called(4); 2148 2149 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2150 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2151 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2152 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2153 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2154 } 2155 2156 static void 2157 aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2158 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2159 { 2160 debug_called(4); 2161 2162 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2163 AAC_FA_HACK(sc); 2164 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2165 AAC_FA_HACK(sc); 2166 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2167 AAC_FA_HACK(sc); 2168 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2169 AAC_FA_HACK(sc); 2170 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2171 AAC_FA_HACK(sc); 2172 } 2173 2174 /* 2175 * Fetch the immediate command status word 2176 */ 2177 static int 2178 aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2179 { 2180 debug_called(4); 2181 2182 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2183 } 2184 2185 static int 2186 aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2187 { 2188 debug_called(4); 2189 2190 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2191 } 2192 2193 static int 2194 aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2195 { 2196 int val; 2197 2198 debug_called(4); 2199 2200 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2201 return (val); 2202 } 2203 2204 /* 2205 * Set/clear interrupt masks 2206 */ 2207 static void 2208 aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2209 { 2210 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2211 2212 if (enable) { 2213 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2214 } else { 2215 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2216 } 2217 } 2218 2219 static void 2220 aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2221 { 2222 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2223 2224 if (enable) { 2225 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2226 } else { 2227 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2228 } 2229 } 2230 2231 static void 2232 aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2233 { 2234 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2235 2236 if (enable) { 2237 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2238 AAC_FA_HACK(sc); 2239 } else { 2240 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2241 AAC_FA_HACK(sc); 2242 } 2243 } 2244 2245 /* 2246 * Debugging and Diagnostics 2247 */ 2248 2249 /* 2250 * Print some information about the controller. 2251 */ 2252 static void 2253 aac_describe_controller(struct aac_softc *sc) 2254 { 2255 struct aac_fib *fib; 2256 struct aac_adapter_info *info; 2257 2258 debug_called(2); 2259 2260 aac_alloc_sync_fib(sc, &fib, 0); 2261 2262 fib->data[0] = 0; 2263 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2264 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2265 aac_release_sync_fib(sc); 2266 return; 2267 } 2268 info = (struct aac_adapter_info *)&fib->data[0]; 2269 2270 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2271 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2272 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2273 aac_describe_code(aac_battery_platform, 2274 info->batteryPlatform)); 2275 2276 /* save the kernel revision structure for later use */ 2277 sc->aac_revision = info->KernelRevision; 2278 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2279 info->KernelRevision.external.comp.major, 2280 info->KernelRevision.external.comp.minor, 2281 info->KernelRevision.external.comp.dash, 2282 info->KernelRevision.buildNumber, 2283 (u_int32_t)(info->SerialNumber & 0xffffff)); 2284 2285 aac_release_sync_fib(sc); 2286 2287 if (1 || bootverbose) { 2288 device_printf(sc->aac_dev, "Supported Options=%b\n", 2289 sc->supported_options, 2290 "\20" 2291 "\1SNAPSHOT" 2292 "\2CLUSTERS" 2293 "\3WCACHE" 2294 "\4DATA64" 2295 "\5HOSTTIME" 2296 "\6RAID50" 2297 "\7WINDOW4GB" 2298 "\10SCSIUPGD" 2299 "\11SOFTERR" 2300 "\12NORECOND" 2301 "\13SGMAP64" 2302 "\14ALARM" 2303 "\15NONDASD"); 2304 } 2305 } 2306 2307 /* 2308 * Look up a text description of a numeric error code and return a pointer to 2309 * same. 2310 */ 2311 static char * 2312 aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2313 { 2314 int i; 2315 2316 for (i = 0; table[i].string != NULL; i++) 2317 if (table[i].code == code) 2318 return(table[i].string); 2319 return(table[i + 1].string); 2320 } 2321 2322 /* 2323 * Management Interface 2324 */ 2325 2326 static int 2327 aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2328 { 2329 struct aac_softc *sc; 2330 2331 debug_called(2); 2332 2333 sc = dev->si_drv1; 2334 2335 /* Check to make sure the device isn't already open */ 2336 if (sc->aac_state & AAC_STATE_OPEN) { 2337 return EBUSY; 2338 } 2339 sc->aac_state |= AAC_STATE_OPEN; 2340 2341 return 0; 2342 } 2343 2344 static int 2345 aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2346 { 2347 struct aac_softc *sc; 2348 2349 debug_called(2); 2350 2351 sc = dev->si_drv1; 2352 2353 /* Mark this unit as no longer open */ 2354 sc->aac_state &= ~AAC_STATE_OPEN; 2355 2356 return 0; 2357 } 2358 2359 static int 2360 aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2361 { 2362 struct aac_softc *sc = dev->si_drv1; 2363 int error = 0; 2364 int i; 2365 2366 debug_called(2); 2367 2368 if (cmd == AACIO_STATS) { 2369 union aac_statrequest *as = (union aac_statrequest *)arg; 2370 2371 switch (as->as_item) { 2372 case AACQ_FREE: 2373 case AACQ_BIO: 2374 case AACQ_READY: 2375 case AACQ_BUSY: 2376 case AACQ_COMPLETE: 2377 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2378 sizeof(struct aac_qstat)); 2379 break; 2380 default: 2381 error = ENOENT; 2382 break; 2383 } 2384 return(error); 2385 } 2386 2387 arg = *(caddr_t *)arg; 2388 2389 switch (cmd) { 2390 /* AACIO_STATS already handled above */ 2391 case FSACTL_SENDFIB: 2392 debug(1, "FSACTL_SENDFIB"); 2393 error = aac_ioctl_sendfib(sc, arg); 2394 break; 2395 case FSACTL_AIF_THREAD: 2396 debug(1, "FSACTL_AIF_THREAD"); 2397 error = EINVAL; 2398 break; 2399 case FSACTL_OPEN_GET_ADAPTER_FIB: 2400 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2401 /* 2402 * Pass the caller out an AdapterFibContext. 2403 * 2404 * Note that because we only support one opener, we 2405 * basically ignore this. Set the caller's context to a magic 2406 * number just in case. 2407 * 2408 * The Linux code hands the driver a pointer into kernel space, 2409 * and then trusts it when the caller hands it back. Aiee! 2410 * Here, we give it the proc pointer of the per-adapter aif 2411 * thread. It's only used as a sanity check in other calls. 2412 */ 2413 i = (int)sc->aifthread; 2414 error = copyout(&i, arg, sizeof(i)); 2415 break; 2416 case FSACTL_GET_NEXT_ADAPTER_FIB: 2417 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2418 error = aac_getnext_aif(sc, arg); 2419 break; 2420 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2421 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2422 /* don't do anything here */ 2423 break; 2424 case FSACTL_MINIPORT_REV_CHECK: 2425 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2426 error = aac_rev_check(sc, arg); 2427 break; 2428 case FSACTL_QUERY_DISK: 2429 debug(1, "FSACTL_QUERY_DISK"); 2430 error = aac_query_disk(sc, arg); 2431 break; 2432 case FSACTL_DELETE_DISK: 2433 /* 2434 * We don't trust the underland to tell us when to delete a 2435 * container, rather we rely on an AIF coming from the 2436 * controller 2437 */ 2438 error = 0; 2439 break; 2440 default: 2441 debug(1, "unsupported cmd 0x%lx\n", cmd); 2442 error = EINVAL; 2443 break; 2444 } 2445 return(error); 2446 } 2447 2448 static int 2449 aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2450 { 2451 struct aac_softc *sc; 2452 int revents; 2453 2454 sc = dev->si_drv1; 2455 revents = 0; 2456 2457 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2458 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2459 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2460 revents |= poll_events & (POLLIN | POLLRDNORM); 2461 } 2462 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2463 2464 if (revents == 0) { 2465 if (poll_events & (POLLIN | POLLRDNORM)) 2466 selrecord(td, &sc->rcv_select); 2467 } 2468 2469 return (revents); 2470 } 2471 2472 /* 2473 * Send a FIB supplied from userspace 2474 */ 2475 static int 2476 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2477 { 2478 struct aac_command *cm; 2479 int size, error; 2480 2481 debug_called(2); 2482 2483 cm = NULL; 2484 2485 /* 2486 * Get a command 2487 */ 2488 if (aac_alloc_command(sc, &cm)) { 2489 error = EBUSY; 2490 goto out; 2491 } 2492 2493 /* 2494 * Fetch the FIB header, then re-copy to get data as well. 2495 */ 2496 if ((error = copyin(ufib, cm->cm_fib, 2497 sizeof(struct aac_fib_header))) != 0) 2498 goto out; 2499 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2500 if (size > sizeof(struct aac_fib)) { 2501 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2502 size, sizeof(struct aac_fib)); 2503 size = sizeof(struct aac_fib); 2504 } 2505 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2506 goto out; 2507 cm->cm_fib->Header.Size = size; 2508 cm->cm_timestamp = time_second; 2509 2510 /* 2511 * Pass the FIB to the controller, wait for it to complete. 2512 */ 2513 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2514 printf("aac_wait_command return %d\n", error); 2515 goto out; 2516 } 2517 2518 /* 2519 * Copy the FIB and data back out to the caller. 2520 */ 2521 size = cm->cm_fib->Header.Size; 2522 if (size > sizeof(struct aac_fib)) { 2523 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2524 size, sizeof(struct aac_fib)); 2525 size = sizeof(struct aac_fib); 2526 } 2527 error = copyout(cm->cm_fib, ufib, size); 2528 2529 out: 2530 if (cm != NULL) { 2531 aac_release_command(cm); 2532 } 2533 return(error); 2534 } 2535 2536 /* 2537 * Handle an AIF sent to us by the controller; queue it for later reference. 2538 * If the queue fills up, then drop the older entries. 2539 */ 2540 static void 2541 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2542 { 2543 struct aac_aif_command *aif; 2544 struct aac_container *co, *co_next; 2545 struct aac_mntinfo *mi; 2546 struct aac_mntinforesp *mir = NULL; 2547 u_int16_t rsize; 2548 int next, found; 2549 int added = 0, i = 0; 2550 2551 debug_called(2); 2552 2553 aif = (struct aac_aif_command*)&fib->data[0]; 2554 aac_print_aif(sc, aif); 2555 2556 /* Is it an event that we should care about? */ 2557 switch (aif->command) { 2558 case AifCmdEventNotify: 2559 switch (aif->data.EN.type) { 2560 case AifEnAddContainer: 2561 case AifEnDeleteContainer: 2562 /* 2563 * A container was added or deleted, but the message 2564 * doesn't tell us anything else! Re-enumerate the 2565 * containers and sort things out. 2566 */ 2567 aac_alloc_sync_fib(sc, &fib, 0); 2568 mi = (struct aac_mntinfo *)&fib->data[0]; 2569 do { 2570 /* 2571 * Ask the controller for its containers one at 2572 * a time. 2573 * XXX What if the controller's list changes 2574 * midway through this enumaration? 2575 * XXX This should be done async. 2576 */ 2577 bzero(mi, sizeof(struct aac_mntinfo)); 2578 mi->Command = VM_NameServe; 2579 mi->MntType = FT_FILESYS; 2580 mi->MntCount = i; 2581 rsize = sizeof(mir); 2582 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2583 sizeof(struct aac_mntinfo))) { 2584 debug(2, "Error probing container %d\n", 2585 i); 2586 continue; 2587 } 2588 mir = (struct aac_mntinforesp *)&fib->data[0]; 2589 /* 2590 * Check the container against our list. 2591 * co->co_found was already set to 0 in a 2592 * previous run. 2593 */ 2594 if ((mir->Status == ST_OK) && 2595 (mir->MntTable[0].VolType != CT_NONE)) { 2596 found = 0; 2597 TAILQ_FOREACH(co, 2598 &sc->aac_container_tqh, 2599 co_link) { 2600 if (co->co_mntobj.ObjectId == 2601 mir->MntTable[0].ObjectId) { 2602 co->co_found = 1; 2603 found = 1; 2604 break; 2605 } 2606 } 2607 /* 2608 * If the container matched, continue 2609 * in the list. 2610 */ 2611 if (found) { 2612 i++; 2613 continue; 2614 } 2615 2616 /* 2617 * This is a new container. Do all the 2618 * appropriate things to set it up. */ 2619 aac_add_container(sc, mir, 1); 2620 added = 1; 2621 } 2622 i++; 2623 } while ((i < mir->MntRespCount) && 2624 (i < AAC_MAX_CONTAINERS)); 2625 aac_release_sync_fib(sc); 2626 2627 /* 2628 * Go through our list of containers and see which ones 2629 * were not marked 'found'. Since the controller didn't 2630 * list them they must have been deleted. Do the 2631 * appropriate steps to destroy the device. Also reset 2632 * the co->co_found field. 2633 */ 2634 co = TAILQ_FIRST(&sc->aac_container_tqh); 2635 while (co != NULL) { 2636 if (co->co_found == 0) { 2637 device_delete_child(sc->aac_dev, 2638 co->co_disk); 2639 co_next = TAILQ_NEXT(co, co_link); 2640 AAC_LOCK_ACQUIRE(&sc-> 2641 aac_container_lock); 2642 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2643 co_link); 2644 AAC_LOCK_RELEASE(&sc-> 2645 aac_container_lock); 2646 FREE(co, M_AACBUF); 2647 co = co_next; 2648 } else { 2649 co->co_found = 0; 2650 co = TAILQ_NEXT(co, co_link); 2651 } 2652 } 2653 2654 /* Attach the newly created containers */ 2655 if (added) 2656 bus_generic_attach(sc->aac_dev); 2657 2658 break; 2659 2660 default: 2661 break; 2662 } 2663 2664 default: 2665 break; 2666 } 2667 2668 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2669 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2670 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2671 if (next != sc->aac_aifq_tail) { 2672 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2673 sc->aac_aifq_head = next; 2674 2675 /* On the off chance that someone is sleeping for an aif... */ 2676 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2677 wakeup(sc->aac_aifq); 2678 /* token may have been lost */ 2679 /* Wakeup any poll()ers */ 2680 selwakeup(&sc->rcv_select); 2681 /* token may have been lost */ 2682 } 2683 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2684 2685 return; 2686 } 2687 2688 /* 2689 * Return the Revision of the driver to userspace and check to see if the 2690 * userspace app is possibly compatible. This is extremely bogus since 2691 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2692 * returning what the card reported. 2693 */ 2694 static int 2695 aac_rev_check(struct aac_softc *sc, caddr_t udata) 2696 { 2697 struct aac_rev_check rev_check; 2698 struct aac_rev_check_resp rev_check_resp; 2699 int error = 0; 2700 2701 debug_called(2); 2702 2703 /* 2704 * Copyin the revision struct from userspace 2705 */ 2706 if ((error = copyin(udata, (caddr_t)&rev_check, 2707 sizeof(struct aac_rev_check))) != 0) { 2708 return error; 2709 } 2710 2711 debug(2, "Userland revision= %d\n", 2712 rev_check.callingRevision.buildNumber); 2713 2714 /* 2715 * Doctor up the response struct. 2716 */ 2717 rev_check_resp.possiblyCompatible = 1; 2718 rev_check_resp.adapterSWRevision.external.ul = 2719 sc->aac_revision.external.ul; 2720 rev_check_resp.adapterSWRevision.buildNumber = 2721 sc->aac_revision.buildNumber; 2722 2723 return(copyout((caddr_t)&rev_check_resp, udata, 2724 sizeof(struct aac_rev_check_resp))); 2725 } 2726 2727 /* 2728 * Pass the caller the next AIF in their queue 2729 */ 2730 static int 2731 aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2732 { 2733 struct get_adapter_fib_ioctl agf; 2734 int error, s; 2735 2736 debug_called(2); 2737 2738 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2739 2740 /* 2741 * Check the magic number that we gave the caller. 2742 */ 2743 if (agf.AdapterFibContext != (int)sc->aifthread) { 2744 error = EFAULT; 2745 } else { 2746 2747 s = splbio(); 2748 error = aac_return_aif(sc, agf.AifFib); 2749 2750 if ((error == EAGAIN) && (agf.Wait)) { 2751 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2752 while (error == EAGAIN) { 2753 error = tsleep(sc->aac_aifq, 2754 PCATCH, "aacaif", 0); 2755 if (error == 0) 2756 error = aac_return_aif(sc, 2757 agf.AifFib); 2758 } 2759 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2760 } 2761 splx(s); 2762 } 2763 } 2764 return(error); 2765 } 2766 2767 /* 2768 * Hand the next AIF off the top of the queue out to userspace. 2769 * 2770 * YYY token could be lost during copyout 2771 */ 2772 static int 2773 aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2774 { 2775 int error; 2776 2777 debug_called(2); 2778 2779 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2780 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2781 error = EAGAIN; 2782 } else { 2783 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2784 sizeof(struct aac_aif_command)); 2785 if (error) 2786 printf("aac_return_aif: copyout returned %d\n", error); 2787 if (!error) 2788 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2789 AAC_AIFQ_LENGTH; 2790 } 2791 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2792 return(error); 2793 } 2794 2795 /* 2796 * Give the userland some information about the container. The AAC arch 2797 * expects the driver to be a SCSI passthrough type driver, so it expects 2798 * the containers to have b:t:l numbers. Fake it. 2799 */ 2800 static int 2801 aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2802 { 2803 struct aac_query_disk query_disk; 2804 struct aac_container *co; 2805 struct aac_disk *disk; 2806 int error, id; 2807 2808 debug_called(2); 2809 2810 disk = NULL; 2811 2812 error = copyin(uptr, (caddr_t)&query_disk, 2813 sizeof(struct aac_query_disk)); 2814 if (error) 2815 return (error); 2816 2817 id = query_disk.ContainerNumber; 2818 if (id == -1) 2819 return (EINVAL); 2820 2821 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2822 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2823 if (co->co_mntobj.ObjectId == id) 2824 break; 2825 } 2826 2827 if (co == NULL) { 2828 query_disk.Valid = 0; 2829 query_disk.Locked = 0; 2830 query_disk.Deleted = 1; /* XXX is this right? */ 2831 } else { 2832 disk = device_get_softc(co->co_disk); 2833 query_disk.Valid = 1; 2834 query_disk.Locked = 2835 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2836 query_disk.Deleted = 0; 2837 query_disk.Bus = device_get_unit(sc->aac_dev); 2838 query_disk.Target = disk->unit; 2839 query_disk.Lun = 0; 2840 query_disk.UnMapped = 0; 2841 bcopy(disk->ad_dev_t->si_name, 2842 &query_disk.diskDeviceName[0], 10); 2843 } 2844 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2845 2846 error = copyout((caddr_t)&query_disk, uptr, 2847 sizeof(struct aac_query_disk)); 2848 2849 return (error); 2850 } 2851 2852 static void 2853 aac_get_bus_info(struct aac_softc *sc) 2854 { 2855 struct aac_fib *fib; 2856 struct aac_ctcfg *c_cmd; 2857 struct aac_ctcfg_resp *c_resp; 2858 struct aac_vmioctl *vmi; 2859 struct aac_vmi_businf_resp *vmi_resp; 2860 struct aac_getbusinf businfo; 2861 struct aac_cam_inf *caminf; 2862 device_t child; 2863 int i, found, error; 2864 2865 aac_alloc_sync_fib(sc, &fib, 0); 2866 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2867 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2868 2869 c_cmd->Command = VM_ContainerConfig; 2870 c_cmd->cmd = CT_GET_SCSI_METHOD; 2871 c_cmd->param = 0; 2872 2873 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2874 sizeof(struct aac_ctcfg)); 2875 if (error) { 2876 device_printf(sc->aac_dev, "Error %d sending " 2877 "VM_ContainerConfig command\n", error); 2878 aac_release_sync_fib(sc); 2879 return; 2880 } 2881 2882 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2883 if (c_resp->Status != ST_OK) { 2884 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2885 c_resp->Status); 2886 aac_release_sync_fib(sc); 2887 return; 2888 } 2889 2890 sc->scsi_method_id = c_resp->param; 2891 2892 vmi = (struct aac_vmioctl *)&fib->data[0]; 2893 bzero(vmi, sizeof(struct aac_vmioctl)); 2894 2895 vmi->Command = VM_Ioctl; 2896 vmi->ObjType = FT_DRIVE; 2897 vmi->MethId = sc->scsi_method_id; 2898 vmi->ObjId = 0; 2899 vmi->IoctlCmd = GetBusInfo; 2900 2901 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2902 sizeof(struct aac_vmioctl)); 2903 if (error) { 2904 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2905 error); 2906 aac_release_sync_fib(sc); 2907 return; 2908 } 2909 2910 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2911 if (vmi_resp->Status != ST_OK) { 2912 debug(1, "VM_Ioctl returned %d\n", vmi_resp->Status); 2913 aac_release_sync_fib(sc); 2914 return; 2915 } 2916 2917 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2918 aac_release_sync_fib(sc); 2919 2920 found = 0; 2921 for (i = 0; i < businfo.BusCount; i++) { 2922 if (businfo.BusValid[i] != AAC_BUS_VALID) 2923 continue; 2924 2925 MALLOC(caminf, struct aac_cam_inf *, 2926 sizeof(struct aac_cam_inf), M_AACBUF, M_INTWAIT | M_ZERO); 2927 2928 child = device_add_child(sc->aac_dev, "aacp", -1); 2929 if (child == NULL) { 2930 device_printf(sc->aac_dev, "device_add_child failed\n"); 2931 continue; 2932 } 2933 2934 caminf->TargetsPerBus = businfo.TargetsPerBus; 2935 caminf->BusNumber = i; 2936 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2937 caminf->aac_sc = sc; 2938 2939 device_set_ivars(child, caminf); 2940 device_set_desc(child, "SCSI Passthrough Bus"); 2941 2942 found = 1; 2943 } 2944 2945 if (found) 2946 bus_generic_attach(sc->aac_dev); 2947 2948 return; 2949 } 2950