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 1.9 2003/11/20 22:07:33 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 __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 0, /* autoq */ 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 __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 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_WHEEL, 0644, 300 "aac%d", unit); 301 #if __FreeBSD_version > 500005 302 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 303 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 304 #endif 305 sc->aac_dev_t->si_drv1 = sc; 306 307 /* Create the AIF thread */ 308 #if __FreeBSD_version > 500005 309 if (kthread_create((void(*)(void *))aac_host_command, sc, 310 &sc->aifthread, 0, "aac%daif", unit)) 311 #else 312 if (kthread_create((void(*)(void *))aac_host_command, sc, 313 &sc->aifthread, "aac%daif", unit)) 314 #endif 315 panic("Could not create AIF thread\n"); 316 317 /* Register the shutdown method to only be called post-dump */ 318 if ((EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, sc->aac_dev, 319 SHUTDOWN_PRI_DEFAULT)) == NULL) 320 device_printf(sc->aac_dev, "shutdown event registration failed\n"); 321 322 /* Register with CAM for the non-DASD devices */ 323 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0) 324 aac_get_bus_info(sc); 325 326 return(0); 327 } 328 329 /* 330 * Probe for containers, create disks. 331 */ 332 static void 333 aac_startup(void *arg) 334 { 335 struct aac_softc *sc; 336 struct aac_fib *fib; 337 struct aac_mntinfo *mi; 338 struct aac_mntinforesp *mir = NULL; 339 int i = 0; 340 341 debug_called(1); 342 343 sc = (struct aac_softc *)arg; 344 345 /* disconnect ourselves from the intrhook chain */ 346 config_intrhook_disestablish(&sc->aac_ich); 347 348 aac_alloc_sync_fib(sc, &fib, 0); 349 mi = (struct aac_mntinfo *)&fib->data[0]; 350 351 /* loop over possible containers */ 352 do { 353 /* request information on this container */ 354 bzero(mi, sizeof(struct aac_mntinfo)); 355 mi->Command = VM_NameServe; 356 mi->MntType = FT_FILESYS; 357 mi->MntCount = i; 358 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 359 sizeof(struct aac_mntinfo))) { 360 debug(2, "error probing container %d", i); 361 continue; 362 } 363 364 mir = (struct aac_mntinforesp *)&fib->data[0]; 365 aac_add_container(sc, mir, 0); 366 i++; 367 } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS)); 368 369 aac_release_sync_fib(sc); 370 371 /* poke the bus to actually attach the child devices */ 372 if (bus_generic_attach(sc->aac_dev)) 373 device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 374 375 /* mark the controller up */ 376 sc->aac_state &= ~AAC_STATE_SUSPEND; 377 378 /* enable interrupts now */ 379 AAC_UNMASK_INTERRUPTS(sc); 380 381 /* enable the timeout watchdog */ 382 timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz); 383 } 384 385 /* 386 * Create a device to respresent a new container 387 */ 388 static void 389 aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) 390 { 391 struct aac_container *co; 392 device_t child; 393 394 /* 395 * Check container volume type for validity. Note that many of 396 * the possible types may never show up. 397 */ 398 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 399 MALLOC(co, struct aac_container *, sizeof *co, M_AACBUF, 400 M_NOWAIT); 401 if (co == NULL) 402 panic("Out of memory?!\n"); 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 } 473 474 /* 475 * Disconnect from the controller completely, in preparation for unload. 476 */ 477 int 478 aac_detach(device_t dev) 479 { 480 struct aac_softc *sc; 481 #if AAC_BROKEN 482 int error; 483 #endif 484 485 debug_called(1); 486 487 sc = device_get_softc(dev); 488 489 if (sc->aac_state & AAC_STATE_OPEN) 490 return(EBUSY); 491 492 #if AAC_BROKEN 493 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 494 sc->aifflags |= AAC_AIFFLAGS_EXIT; 495 wakeup(sc->aifthread); 496 tsleep(sc->aac_dev, PCATCH, "aacdch", 30 * hz); 497 } 498 499 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 500 panic("Cannot shutdown AIF thread\n"); 501 502 if ((error = aac_shutdown(dev))) 503 return(error); 504 505 aac_free(sc); 506 507 return(0); 508 #else 509 return (EBUSY); 510 #endif 511 } 512 513 /* 514 * Bring the controller down to a dormant state and detach all child devices. 515 * 516 * This function is called before detach or system shutdown. 517 * 518 * Note that we can assume that the bioq on the controller is empty, as we won't 519 * allow shutdown if any device is open. 520 */ 521 int 522 aac_shutdown(device_t dev) 523 { 524 struct aac_softc *sc; 525 struct aac_fib *fib; 526 struct aac_close_command *cc; 527 int s; 528 529 debug_called(1); 530 531 sc = device_get_softc(dev); 532 533 s = splbio(); 534 535 sc->aac_state |= AAC_STATE_SUSPEND; 536 537 /* 538 * Send a Container shutdown followed by a HostShutdown FIB to the 539 * controller to convince it that we don't want to talk to it anymore. 540 * We've been closed and all I/O completed already 541 */ 542 device_printf(sc->aac_dev, "shutting down controller..."); 543 544 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); 545 cc = (struct aac_close_command *)&fib->data[0]; 546 547 bzero(cc, sizeof(struct aac_close_command)); 548 cc->Command = VM_CloseAll; 549 cc->ContainerId = 0xffffffff; 550 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 551 sizeof(struct aac_close_command))) 552 printf("FAILED.\n"); 553 else { 554 fib->data[0] = 0; 555 /* 556 * XXX Issuing this command to the controller makes it shut down 557 * but also keeps it from coming back up without a reset of the 558 * PCI bus. This is not desirable if you are just unloading the 559 * driver module with the intent to reload it later. 560 */ 561 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, 562 fib, 1)) { 563 printf("FAILED.\n"); 564 } else { 565 printf("done.\n"); 566 } 567 } 568 569 AAC_MASK_INTERRUPTS(sc); 570 571 splx(s); 572 return(0); 573 } 574 575 /* 576 * Bring the controller to a quiescent state, ready for system suspend. 577 */ 578 int 579 aac_suspend(device_t dev) 580 { 581 struct aac_softc *sc; 582 int s; 583 584 debug_called(1); 585 586 sc = device_get_softc(dev); 587 588 s = splbio(); 589 590 sc->aac_state |= AAC_STATE_SUSPEND; 591 592 AAC_MASK_INTERRUPTS(sc); 593 splx(s); 594 return(0); 595 } 596 597 /* 598 * Bring the controller back to a state ready for operation. 599 */ 600 int 601 aac_resume(device_t dev) 602 { 603 struct aac_softc *sc; 604 605 debug_called(1); 606 607 sc = device_get_softc(dev); 608 609 sc->aac_state &= ~AAC_STATE_SUSPEND; 610 AAC_UNMASK_INTERRUPTS(sc); 611 return(0); 612 } 613 614 /* 615 * Take an interrupt. 616 */ 617 void 618 aac_intr(void *arg) 619 { 620 struct aac_softc *sc; 621 u_int16_t reason; 622 u_int32_t *resp_queue; 623 624 debug_called(2); 625 626 sc = (struct aac_softc *)arg; 627 628 /* 629 * Optimize the common case of adapter response interrupts. 630 * We must read from the card prior to processing the responses 631 * to ensure the clear is flushed prior to accessing the queues. 632 * Reading the queues from local memory might save us a PCI read. 633 */ 634 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; 635 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) 636 reason = AAC_DB_RESPONSE_READY; 637 else 638 reason = AAC_GET_ISTATUS(sc); 639 AAC_CLEAR_ISTATUS(sc, reason); 640 (void)AAC_GET_ISTATUS(sc); 641 642 /* It's not ok to return here because of races with the previous step */ 643 if (reason & AAC_DB_RESPONSE_READY) 644 aac_host_response(sc); 645 646 /* controller wants to talk to the log */ 647 if (reason & AAC_DB_PRINTF) 648 aac_print_printf(sc); 649 650 /* controller has a message for us? */ 651 if (reason & AAC_DB_COMMAND_READY) { 652 /* XXX What happens if the thread is already awake? */ 653 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 654 sc->aifflags |= AAC_AIFFLAGS_PENDING; 655 wakeup(sc->aifthread); 656 } 657 } 658 } 659 660 /* 661 * Command Processing 662 */ 663 664 /* 665 * Start as much queued I/O as possible on the controller 666 */ 667 void 668 aac_startio(struct aac_softc *sc) 669 { 670 struct aac_command *cm; 671 672 debug_called(2); 673 674 for (;;) { 675 /* 676 * Try to get a command that's been put off for lack of 677 * resources 678 */ 679 cm = aac_dequeue_ready(sc); 680 681 /* 682 * Try to build a command off the bio queue (ignore error 683 * return) 684 */ 685 if (cm == NULL) 686 aac_bio_command(sc, &cm); 687 688 /* nothing to do? */ 689 if (cm == NULL) 690 break; 691 692 /* try to give the command to the controller */ 693 if (aac_start(cm) == EBUSY) { 694 /* put it on the ready queue for later */ 695 aac_requeue_ready(cm); 696 break; 697 } 698 } 699 } 700 701 /* 702 * Deliver a command to the controller; allocate controller resources at the 703 * last moment when possible. 704 */ 705 static int 706 aac_start(struct aac_command *cm) 707 { 708 struct aac_softc *sc; 709 int error; 710 711 debug_called(2); 712 713 sc = cm->cm_sc; 714 715 /* get the command mapped */ 716 aac_map_command(cm); 717 718 /* fix up the address values in the FIB */ 719 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 720 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 721 722 /* save a pointer to the command for speedy reverse-lookup */ 723 cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical 724 * address issue */ 725 /* put the FIB on the outbound queue */ 726 error = aac_enqueue_fib(sc, cm->cm_queue, cm); 727 return(error); 728 } 729 730 /* 731 * Handle notification of one or more FIBs coming from the controller. 732 */ 733 static void 734 aac_host_command(struct aac_softc *sc) 735 { 736 struct aac_fib *fib; 737 u_int32_t fib_size; 738 int size; 739 740 debug_called(2); 741 742 sc->aifflags |= AAC_AIFFLAGS_RUNNING; 743 744 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 745 if (!(sc->aifflags & AAC_AIFFLAGS_PENDING)) 746 tsleep(sc->aifthread, 0, "aifthd", 15 * hz); 747 748 sc->aifflags &= ~AAC_AIFFLAGS_PENDING; 749 for (;;) { 750 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 751 &fib_size, &fib)) 752 break; /* nothing to do */ 753 754 AAC_PRINT_FIB(sc, fib); 755 756 switch (fib->Header.Command) { 757 case AifRequest: 758 aac_handle_aif(sc, fib); 759 break; 760 default: 761 device_printf(sc->aac_dev, "unknown command " 762 "from controller\n"); 763 break; 764 } 765 766 /* Return the AIF to the controller. */ 767 if ((fib->Header.XferState == 0) || 768 (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 769 break; 770 771 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 772 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 773 *(AAC_FSAStatus*)fib->data = ST_OK; 774 775 /* XXX Compute the Size field? */ 776 size = fib->Header.Size; 777 if (size > sizeof(struct aac_fib)) { 778 size = sizeof(struct aac_fib); 779 fib->Header.Size = size; 780 } 781 /* 782 * Since we did not generate this command, it 783 * cannot go through the normal 784 * enqueue->startio chain. 785 */ 786 aac_enqueue_response(sc, 787 AAC_ADAP_NORM_RESP_QUEUE, 788 fib); 789 } 790 } 791 } 792 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 793 wakeup(sc->aac_dev); 794 795 #if __FreeBSD_version > 500005 796 mtx_lock(&Giant); 797 #endif 798 kthread_exit(); 799 } 800 801 /* 802 * Handle notification of one or more FIBs completed by the controller 803 */ 804 static void 805 aac_host_response(struct aac_softc *sc) 806 { 807 struct aac_command *cm; 808 struct aac_fib *fib; 809 u_int32_t fib_size; 810 811 debug_called(2); 812 813 for (;;) { 814 /* look for completed FIBs on our queue */ 815 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 816 &fib)) 817 break; /* nothing to do */ 818 819 /* get the command, unmap and queue for later processing */ 820 cm = (struct aac_command *)fib->Header.SenderData; 821 if (cm == NULL) { 822 AAC_PRINT_FIB(sc, fib); 823 } else { 824 aac_remove_busy(cm); 825 aac_unmap_command(cm); /* XXX defer? */ 826 aac_enqueue_complete(cm); 827 } 828 } 829 830 /* handle completion processing */ 831 #if __FreeBSD_version >= 500005 832 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 833 #else 834 aac_complete(sc, 0); 835 #endif 836 } 837 838 /* 839 * Process completed commands. 840 */ 841 static void 842 aac_complete(void *context, int pending) 843 { 844 struct aac_softc *sc; 845 struct aac_command *cm; 846 847 debug_called(2); 848 849 sc = (struct aac_softc *)context; 850 851 /* pull completed commands off the queue */ 852 for (;;) { 853 cm = aac_dequeue_complete(sc); 854 if (cm == NULL) 855 break; 856 cm->cm_flags |= AAC_CMD_COMPLETED; 857 858 /* is there a completion handler? */ 859 if (cm->cm_complete != NULL) { 860 cm->cm_complete(cm); 861 } else { 862 /* assume that someone is sleeping on this command */ 863 wakeup(cm); 864 } 865 } 866 867 /* see if we can start some more I/O */ 868 aac_startio(sc); 869 } 870 871 /* 872 * Handle a bio submitted from a disk device. 873 */ 874 void 875 aac_submit_bio(struct bio *bp) 876 { 877 struct aac_disk *ad; 878 struct aac_softc *sc; 879 880 debug_called(2); 881 882 ad = (struct aac_disk *)bp->bio_dev->si_drv1; 883 sc = ad->ad_controller; 884 885 /* queue the BIO and try to get some work done */ 886 aac_enqueue_bio(sc, bp); 887 aac_startio(sc); 888 } 889 890 /* 891 * Get a bio and build a command to go with it. 892 */ 893 static int 894 aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 895 { 896 struct aac_command *cm; 897 struct aac_fib *fib; 898 struct aac_blockread *br; 899 struct aac_blockwrite *bw; 900 struct aac_disk *ad; 901 struct bio *bp; 902 903 debug_called(2); 904 905 /* get the resources we will need */ 906 cm = NULL; 907 if ((bp = aac_dequeue_bio(sc)) == NULL) 908 goto fail; 909 if (aac_alloc_command(sc, &cm)) /* get a command */ 910 goto fail; 911 912 /* fill out the command */ 913 cm->cm_data = (void *)bp->bio_data; 914 cm->cm_datalen = bp->bio_bcount; 915 cm->cm_complete = aac_bio_complete; 916 cm->cm_private = bp; 917 cm->cm_timestamp = time_second; 918 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 919 920 /* build the FIB */ 921 fib = cm->cm_fib; 922 fib->Header.XferState = 923 AAC_FIBSTATE_HOSTOWNED | 924 AAC_FIBSTATE_INITIALISED | 925 AAC_FIBSTATE_EMPTY | 926 AAC_FIBSTATE_FROMHOST | 927 AAC_FIBSTATE_REXPECTED | 928 AAC_FIBSTATE_NORM | 929 AAC_FIBSTATE_ASYNC | 930 AAC_FIBSTATE_FAST_RESPONSE; 931 fib->Header.Command = ContainerCommand; 932 fib->Header.Size = sizeof(struct aac_fib_header); 933 934 /* build the read/write request */ 935 ad = (struct aac_disk *)bp->bio_dev->si_drv1; 936 if (BIO_IS_READ(bp)) { 937 br = (struct aac_blockread *)&fib->data[0]; 938 br->Command = VM_CtBlockRead; 939 br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 940 br->BlockNumber = bp->bio_pblkno; 941 br->ByteCount = bp->bio_bcount; 942 fib->Header.Size += sizeof(struct aac_blockread); 943 cm->cm_sgtable = &br->SgMap; 944 cm->cm_flags |= AAC_CMD_DATAIN; 945 } else { 946 bw = (struct aac_blockwrite *)&fib->data[0]; 947 bw->Command = VM_CtBlockWrite; 948 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 949 bw->BlockNumber = bp->bio_pblkno; 950 bw->ByteCount = bp->bio_bcount; 951 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 952 fib->Header.Size += sizeof(struct aac_blockwrite); 953 cm->cm_flags |= AAC_CMD_DATAOUT; 954 cm->cm_sgtable = &bw->SgMap; 955 } 956 957 *cmp = cm; 958 return(0); 959 960 fail: 961 if (bp != NULL) 962 aac_enqueue_bio(sc, bp); 963 if (cm != NULL) 964 aac_release_command(cm); 965 return(ENOMEM); 966 } 967 968 /* 969 * Handle a bio-instigated command that has been completed. 970 */ 971 static void 972 aac_bio_complete(struct aac_command *cm) 973 { 974 struct aac_blockread_response *brr; 975 struct aac_blockwrite_response *bwr; 976 struct bio *bp; 977 AAC_FSAStatus status; 978 979 /* fetch relevant status and then release the command */ 980 bp = (struct bio *)cm->cm_private; 981 if (BIO_IS_READ(bp)) { 982 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 983 status = brr->Status; 984 } else { 985 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 986 status = bwr->Status; 987 } 988 aac_release_command(cm); 989 990 /* fix up the bio based on status */ 991 if (status == ST_OK) { 992 bp->bio_resid = 0; 993 } else { 994 bp->bio_error = EIO; 995 bp->bio_flags |= BIO_ERROR; 996 /* pass an error string out to the disk layer */ 997 bp->bio_driver1 = aac_describe_code(aac_command_status_table, 998 status); 999 } 1000 aac_biodone(bp); 1001 } 1002 1003 /* 1004 * Dump a block of data to the controller. If the queue is full, tell the 1005 * caller to hold off and wait for the queue to drain. 1006 */ 1007 int 1008 aac_dump_enqueue(struct aac_disk *ad, u_int32_t lba, void *data, int dumppages) 1009 { 1010 struct aac_softc *sc; 1011 struct aac_command *cm; 1012 struct aac_fib *fib; 1013 struct aac_blockwrite *bw; 1014 1015 sc = ad->ad_controller; 1016 cm = NULL; 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 * printf'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 s, 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 s = splbio(); 1123 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 1124 error = tsleep(cm, 0, "aacwait", 0); 1125 } 1126 splx(s); 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 (uint8_t *)sc->aac_common += 8192; 1518 sc->aac_common_busaddr += 8192; 1519 } 1520 bzero(sc->aac_common, sizeof(*sc->aac_common)); 1521 1522 /* Allocate some FIBs and associated command structs */ 1523 if (aac_alloc_commands(sc) != 0) 1524 goto out; 1525 1526 /* 1527 * Fill in the init structure. This tells the adapter about the 1528 * physical location of various important shared data structures. 1529 */ 1530 ip = &sc->aac_common->ac_init; 1531 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 1532 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; 1533 1534 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 1535 offsetof(struct aac_common, ac_fibs); 1536 ip->AdapterFibsVirtualAddress = (aac_phys_addr_t)&sc->aac_common->ac_fibs[0]; 1537 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 1538 ip->AdapterFibAlign = sizeof(struct aac_fib); 1539 1540 ip->PrintfBufferAddress = sc->aac_common_busaddr + 1541 offsetof(struct aac_common, ac_printf); 1542 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 1543 1544 /* The adapter assumes that pages are 4K in size */ 1545 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; 1546 ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 1547 1548 /* 1549 * Initialise FIB queues. Note that it appears that the layout of the 1550 * indexes and the segmentation of the entries may be mandated by the 1551 * adapter, which is only told about the base of the queue index fields. 1552 * 1553 * The initial values of the indices are assumed to inform the adapter 1554 * of the sizes of the respective queues, and theoretically it could 1555 * work out the entire layout of the queue structures from this. We 1556 * take the easy route and just lay this area out like everyone else 1557 * does. 1558 * 1559 * The Linux driver uses a much more complex scheme whereby several 1560 * header records are kept for each queue. We use a couple of generic 1561 * list manipulation functions which 'know' the size of each list by 1562 * virtue of a table. 1563 */ 1564 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 1565 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 1566 sc->aac_queues = (struct aac_queue_table *)qaddr; 1567 ip->CommHeaderAddress = sc->aac_common_busaddr + 1568 ((u_int32_t)sc->aac_queues - 1569 (u_int32_t)sc->aac_common); 1570 bzero(sc->aac_queues, sizeof(struct aac_queue_table)); 1571 1572 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1573 AAC_HOST_NORM_CMD_ENTRIES; 1574 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1575 AAC_HOST_NORM_CMD_ENTRIES; 1576 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1577 AAC_HOST_HIGH_CMD_ENTRIES; 1578 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1579 AAC_HOST_HIGH_CMD_ENTRIES; 1580 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1581 AAC_ADAP_NORM_CMD_ENTRIES; 1582 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1583 AAC_ADAP_NORM_CMD_ENTRIES; 1584 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 1585 AAC_ADAP_HIGH_CMD_ENTRIES; 1586 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 1587 AAC_ADAP_HIGH_CMD_ENTRIES; 1588 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1589 AAC_HOST_NORM_RESP_ENTRIES; 1590 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1591 AAC_HOST_NORM_RESP_ENTRIES; 1592 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1593 AAC_HOST_HIGH_RESP_ENTRIES; 1594 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1595 AAC_HOST_HIGH_RESP_ENTRIES; 1596 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1597 AAC_ADAP_NORM_RESP_ENTRIES; 1598 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1599 AAC_ADAP_NORM_RESP_ENTRIES; 1600 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 1601 AAC_ADAP_HIGH_RESP_ENTRIES; 1602 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 1603 AAC_ADAP_HIGH_RESP_ENTRIES; 1604 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 1605 &sc->aac_queues->qt_HostNormCmdQueue[0]; 1606 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 1607 &sc->aac_queues->qt_HostHighCmdQueue[0]; 1608 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 1609 &sc->aac_queues->qt_AdapNormCmdQueue[0]; 1610 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 1611 &sc->aac_queues->qt_AdapHighCmdQueue[0]; 1612 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 1613 &sc->aac_queues->qt_HostNormRespQueue[0]; 1614 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 1615 &sc->aac_queues->qt_HostHighRespQueue[0]; 1616 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 1617 &sc->aac_queues->qt_AdapNormRespQueue[0]; 1618 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 1619 &sc->aac_queues->qt_AdapHighRespQueue[0]; 1620 1621 /* 1622 * Do controller-type-specific initialisation 1623 */ 1624 switch (sc->aac_hwif) { 1625 case AAC_HWIF_I960RX: 1626 AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 1627 break; 1628 } 1629 1630 /* 1631 * Give the init structure to the controller. 1632 */ 1633 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 1634 sc->aac_common_busaddr + 1635 offsetof(struct aac_common, ac_init), 0, 0, 0, 1636 NULL)) { 1637 device_printf(sc->aac_dev, 1638 "error establishing init structure\n"); 1639 error = EIO; 1640 goto out; 1641 } 1642 1643 error = 0; 1644 out: 1645 return(error); 1646 } 1647 1648 /* 1649 * Send a synchronous command to the controller and wait for a result. 1650 */ 1651 static int 1652 aac_sync_command(struct aac_softc *sc, u_int32_t command, 1653 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 1654 u_int32_t *sp) 1655 { 1656 time_t then; 1657 u_int32_t status; 1658 1659 debug_called(3); 1660 1661 /* populate the mailbox */ 1662 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 1663 1664 /* ensure the sync command doorbell flag is cleared */ 1665 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1666 1667 /* then set it to signal the adapter */ 1668 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 1669 1670 /* spin waiting for the command to complete */ 1671 then = time_second; 1672 do { 1673 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 1674 debug(1, "timed out"); 1675 return(EIO); 1676 } 1677 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 1678 1679 /* clear the completion flag */ 1680 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 1681 1682 /* get the command status */ 1683 status = AAC_GET_MAILBOX(sc, 0); 1684 if (sp != NULL) 1685 *sp = status; 1686 return(0); 1687 } 1688 1689 /* 1690 * Grab the sync fib area. 1691 */ 1692 int 1693 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) 1694 { 1695 1696 /* 1697 * If the force flag is set, the system is shutting down, or in 1698 * trouble. Ignore the mutex. 1699 */ 1700 if (!(flags & AAC_SYNC_LOCK_FORCE)) 1701 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); 1702 1703 *fib = &sc->aac_common->ac_sync_fib; 1704 1705 return (1); 1706 } 1707 1708 /* 1709 * Release the sync fib area. 1710 */ 1711 void 1712 aac_release_sync_fib(struct aac_softc *sc) 1713 { 1714 1715 AAC_LOCK_RELEASE(&sc->aac_sync_lock); 1716 } 1717 1718 /* 1719 * Send a synchronous FIB to the controller and wait for a result. 1720 */ 1721 int 1722 aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 1723 struct aac_fib *fib, u_int16_t datasize) 1724 { 1725 debug_called(3); 1726 1727 if (datasize > AAC_FIB_DATASIZE) 1728 return(EINVAL); 1729 1730 /* 1731 * Set up the sync FIB 1732 */ 1733 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 1734 AAC_FIBSTATE_INITIALISED | 1735 AAC_FIBSTATE_EMPTY; 1736 fib->Header.XferState |= xferstate; 1737 fib->Header.Command = command; 1738 fib->Header.StructType = AAC_FIBTYPE_TFIB; 1739 fib->Header.Size = sizeof(struct aac_fib) + datasize; 1740 fib->Header.SenderSize = sizeof(struct aac_fib); 1741 fib->Header.SenderFibAddress = (u_int32_t)fib; 1742 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 1743 offsetof(struct aac_common, 1744 ac_sync_fib); 1745 1746 /* 1747 * Give the FIB to the controller, wait for a response. 1748 */ 1749 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 1750 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 1751 debug(2, "IO error"); 1752 return(EIO); 1753 } 1754 1755 return (0); 1756 } 1757 1758 /* 1759 * Adapter-space FIB queue manipulation 1760 * 1761 * Note that the queue implementation here is a little funky; neither the PI or 1762 * CI will ever be zero. This behaviour is a controller feature. 1763 */ 1764 static struct { 1765 int size; 1766 int notify; 1767 } aac_qinfo[] = { 1768 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 1769 {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 1770 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 1771 {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 1772 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 1773 {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 1774 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 1775 {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 1776 }; 1777 1778 /* 1779 * Atomically insert an entry into the nominated queue, returns 0 on success or 1780 * EBUSY if the queue is full. 1781 * 1782 * Note: it would be more efficient to defer notifying the controller in 1783 * the case where we may be inserting several entries in rapid succession, 1784 * but implementing this usefully may be difficult (it would involve a 1785 * separate queue/notify interface). 1786 */ 1787 static int 1788 aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1789 { 1790 u_int32_t pi, ci; 1791 int s, error; 1792 u_int32_t fib_size; 1793 u_int32_t fib_addr; 1794 1795 debug_called(3); 1796 1797 fib_size = cm->cm_fib->Header.Size; 1798 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1799 1800 s = splbio(); 1801 1802 /* get the producer/consumer indices */ 1803 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1804 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1805 1806 /* wrap the queue? */ 1807 if (pi >= aac_qinfo[queue].size) 1808 pi = 0; 1809 1810 /* check for queue full */ 1811 if ((pi + 1) == ci) { 1812 error = EBUSY; 1813 goto out; 1814 } 1815 1816 /* populate queue entry */ 1817 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1818 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1819 1820 /* update producer index */ 1821 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1822 1823 /* 1824 * To avoid a race with its completion interrupt, place this command on 1825 * the busy queue prior to advertising it to the controller. 1826 */ 1827 aac_enqueue_busy(cm); 1828 1829 /* notify the adapter if we know how */ 1830 if (aac_qinfo[queue].notify != 0) 1831 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1832 1833 error = 0; 1834 1835 out: 1836 splx(s); 1837 return(error); 1838 } 1839 1840 /* 1841 * Atomically remove one entry from the nominated queue, returns 0 on 1842 * success or ENOENT if the queue is empty. 1843 */ 1844 static int 1845 aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1846 struct aac_fib **fib_addr) 1847 { 1848 u_int32_t pi, ci; 1849 int s, error; 1850 int notify; 1851 1852 debug_called(3); 1853 1854 s = splbio(); 1855 1856 /* get the producer/consumer indices */ 1857 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1858 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1859 1860 /* check for queue empty */ 1861 if (ci == pi) { 1862 error = ENOENT; 1863 goto out; 1864 } 1865 1866 notify = 0; 1867 if (ci == pi + 1) 1868 notify++; 1869 1870 /* wrap the queue? */ 1871 if (ci >= aac_qinfo[queue].size) 1872 ci = 0; 1873 1874 /* fetch the entry */ 1875 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1876 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + 1877 ci)->aq_fib_addr; 1878 1879 /* 1880 * Is this a fast response? If it is, update the fib fields in 1881 * local memory so the whole fib doesn't have to be DMA'd back up. 1882 */ 1883 if (*(uintptr_t *)fib_addr & 0x01) { 1884 *(uintptr_t *)fib_addr &= ~0x01; 1885 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; 1886 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; 1887 } 1888 /* update consumer index */ 1889 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1890 1891 /* if we have made the queue un-full, notify the adapter */ 1892 if (notify && (aac_qinfo[queue].notify != 0)) 1893 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1894 error = 0; 1895 1896 out: 1897 splx(s); 1898 return(error); 1899 } 1900 1901 /* 1902 * Put our response to an Adapter Initialed Fib on the response queue 1903 */ 1904 static int 1905 aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1906 { 1907 u_int32_t pi, ci; 1908 int s, error; 1909 u_int32_t fib_size; 1910 u_int32_t fib_addr; 1911 1912 debug_called(1); 1913 1914 /* Tell the adapter where the FIB is */ 1915 fib_size = fib->Header.Size; 1916 fib_addr = fib->Header.SenderFibAddress; 1917 fib->Header.ReceiverFibAddress = fib_addr; 1918 1919 s = splbio(); 1920 1921 /* get the producer/consumer indices */ 1922 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1923 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1924 1925 /* wrap the queue? */ 1926 if (pi >= aac_qinfo[queue].size) 1927 pi = 0; 1928 1929 /* check for queue full */ 1930 if ((pi + 1) == ci) { 1931 error = EBUSY; 1932 goto out; 1933 } 1934 1935 /* populate queue entry */ 1936 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1937 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1938 1939 /* update producer index */ 1940 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1941 1942 /* notify the adapter if we know how */ 1943 if (aac_qinfo[queue].notify != 0) 1944 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1945 1946 error = 0; 1947 1948 out: 1949 splx(s); 1950 return(error); 1951 } 1952 1953 /* 1954 * Check for commands that have been outstanding for a suspiciously long time, 1955 * and complain about them. 1956 */ 1957 static void 1958 aac_timeout(struct aac_softc *sc) 1959 { 1960 int s; 1961 struct aac_command *cm; 1962 time_t deadline; 1963 1964 #if 0 1965 /* simulate an interrupt to handle possibly-missed interrupts */ 1966 /* 1967 * XXX This was done to work around another bug which has since been 1968 * fixed. It is dangerous anyways because you don't want multiple 1969 * threads in the interrupt handler at the same time! If calling 1970 * is deamed neccesary in the future, proper mutexes must be used. 1971 */ 1972 s = splbio(); 1973 aac_intr(sc); 1974 splx(s); 1975 1976 /* kick the I/O queue to restart it in the case of deadlock */ 1977 aac_startio(sc); 1978 #endif 1979 1980 /* 1981 * traverse the busy command list, bitch about late commands once 1982 * only. 1983 */ 1984 deadline = time_second - AAC_CMD_TIMEOUT; 1985 s = splbio(); 1986 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1987 if ((cm->cm_timestamp < deadline) 1988 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1989 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1990 device_printf(sc->aac_dev, 1991 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 1992 cm, (int)(time_second-cm->cm_timestamp)); 1993 AAC_PRINT_FIB(sc, cm->cm_fib); 1994 } 1995 } 1996 splx(s); 1997 1998 /* reset the timer for next time */ 1999 timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz); 2000 return; 2001 } 2002 2003 /* 2004 * Interface Function Vectors 2005 */ 2006 2007 /* 2008 * Read the current firmware status word. 2009 */ 2010 static int 2011 aac_sa_get_fwstatus(struct aac_softc *sc) 2012 { 2013 debug_called(3); 2014 2015 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 2016 } 2017 2018 static int 2019 aac_rx_get_fwstatus(struct aac_softc *sc) 2020 { 2021 debug_called(3); 2022 2023 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 2024 } 2025 2026 static int 2027 aac_fa_get_fwstatus(struct aac_softc *sc) 2028 { 2029 int val; 2030 2031 debug_called(3); 2032 2033 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 2034 return (val); 2035 } 2036 2037 /* 2038 * Notify the controller of a change in a given queue 2039 */ 2040 2041 static void 2042 aac_sa_qnotify(struct aac_softc *sc, int qbit) 2043 { 2044 debug_called(3); 2045 2046 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 2047 } 2048 2049 static void 2050 aac_rx_qnotify(struct aac_softc *sc, int qbit) 2051 { 2052 debug_called(3); 2053 2054 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 2055 } 2056 2057 static void 2058 aac_fa_qnotify(struct aac_softc *sc, int qbit) 2059 { 2060 debug_called(3); 2061 2062 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 2063 AAC_FA_HACK(sc); 2064 } 2065 2066 /* 2067 * Get the interrupt reason bits 2068 */ 2069 static int 2070 aac_sa_get_istatus(struct aac_softc *sc) 2071 { 2072 debug_called(3); 2073 2074 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 2075 } 2076 2077 static int 2078 aac_rx_get_istatus(struct aac_softc *sc) 2079 { 2080 debug_called(3); 2081 2082 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 2083 } 2084 2085 static int 2086 aac_fa_get_istatus(struct aac_softc *sc) 2087 { 2088 int val; 2089 2090 debug_called(3); 2091 2092 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2093 return (val); 2094 } 2095 2096 /* 2097 * Clear some interrupt reason bits 2098 */ 2099 static void 2100 aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2101 { 2102 debug_called(3); 2103 2104 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2105 } 2106 2107 static void 2108 aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2109 { 2110 debug_called(3); 2111 2112 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2113 } 2114 2115 static void 2116 aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2117 { 2118 debug_called(3); 2119 2120 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2121 AAC_FA_HACK(sc); 2122 } 2123 2124 /* 2125 * Populate the mailbox and set the command word 2126 */ 2127 static void 2128 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2129 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2130 { 2131 debug_called(4); 2132 2133 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2134 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2135 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2136 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2137 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2138 } 2139 2140 static void 2141 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2142 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2143 { 2144 debug_called(4); 2145 2146 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2147 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2148 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2149 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2150 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2151 } 2152 2153 static void 2154 aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2155 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2156 { 2157 debug_called(4); 2158 2159 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2160 AAC_FA_HACK(sc); 2161 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2162 AAC_FA_HACK(sc); 2163 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2164 AAC_FA_HACK(sc); 2165 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2166 AAC_FA_HACK(sc); 2167 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2168 AAC_FA_HACK(sc); 2169 } 2170 2171 /* 2172 * Fetch the immediate command status word 2173 */ 2174 static int 2175 aac_sa_get_mailbox(struct aac_softc *sc, int mb) 2176 { 2177 debug_called(4); 2178 2179 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4))); 2180 } 2181 2182 static int 2183 aac_rx_get_mailbox(struct aac_softc *sc, int mb) 2184 { 2185 debug_called(4); 2186 2187 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4))); 2188 } 2189 2190 static int 2191 aac_fa_get_mailbox(struct aac_softc *sc, int mb) 2192 { 2193 int val; 2194 2195 debug_called(4); 2196 2197 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4)); 2198 return (val); 2199 } 2200 2201 /* 2202 * Set/clear interrupt masks 2203 */ 2204 static void 2205 aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2206 { 2207 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2208 2209 if (enable) { 2210 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2211 } else { 2212 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2213 } 2214 } 2215 2216 static void 2217 aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2218 { 2219 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2220 2221 if (enable) { 2222 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2223 } else { 2224 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2225 } 2226 } 2227 2228 static void 2229 aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2230 { 2231 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2232 2233 if (enable) { 2234 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2235 AAC_FA_HACK(sc); 2236 } else { 2237 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2238 AAC_FA_HACK(sc); 2239 } 2240 } 2241 2242 /* 2243 * Debugging and Diagnostics 2244 */ 2245 2246 /* 2247 * Print some information about the controller. 2248 */ 2249 static void 2250 aac_describe_controller(struct aac_softc *sc) 2251 { 2252 struct aac_fib *fib; 2253 struct aac_adapter_info *info; 2254 2255 debug_called(2); 2256 2257 aac_alloc_sync_fib(sc, &fib, 0); 2258 2259 fib->data[0] = 0; 2260 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { 2261 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2262 aac_release_sync_fib(sc); 2263 return; 2264 } 2265 info = (struct aac_adapter_info *)&fib->data[0]; 2266 2267 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2268 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2269 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2270 aac_describe_code(aac_battery_platform, 2271 info->batteryPlatform)); 2272 2273 /* save the kernel revision structure for later use */ 2274 sc->aac_revision = info->KernelRevision; 2275 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2276 info->KernelRevision.external.comp.major, 2277 info->KernelRevision.external.comp.minor, 2278 info->KernelRevision.external.comp.dash, 2279 info->KernelRevision.buildNumber, 2280 (u_int32_t)(info->SerialNumber & 0xffffff)); 2281 2282 aac_release_sync_fib(sc); 2283 2284 if (1 || bootverbose) { 2285 device_printf(sc->aac_dev, "Supported Options=%b\n", 2286 sc->supported_options, 2287 "\20" 2288 "\1SNAPSHOT" 2289 "\2CLUSTERS" 2290 "\3WCACHE" 2291 "\4DATA64" 2292 "\5HOSTTIME" 2293 "\6RAID50" 2294 "\7WINDOW4GB" 2295 "\10SCSIUPGD" 2296 "\11SOFTERR" 2297 "\12NORECOND" 2298 "\13SGMAP64" 2299 "\14ALARM" 2300 "\15NONDASD"); 2301 } 2302 } 2303 2304 /* 2305 * Look up a text description of a numeric error code and return a pointer to 2306 * same. 2307 */ 2308 static char * 2309 aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2310 { 2311 int i; 2312 2313 for (i = 0; table[i].string != NULL; i++) 2314 if (table[i].code == code) 2315 return(table[i].string); 2316 return(table[i + 1].string); 2317 } 2318 2319 /* 2320 * Management Interface 2321 */ 2322 2323 static int 2324 aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2325 { 2326 struct aac_softc *sc; 2327 2328 debug_called(2); 2329 2330 sc = dev->si_drv1; 2331 2332 /* Check to make sure the device isn't already open */ 2333 if (sc->aac_state & AAC_STATE_OPEN) { 2334 return EBUSY; 2335 } 2336 sc->aac_state |= AAC_STATE_OPEN; 2337 2338 return 0; 2339 } 2340 2341 static int 2342 aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2343 { 2344 struct aac_softc *sc; 2345 2346 debug_called(2); 2347 2348 sc = dev->si_drv1; 2349 2350 /* Mark this unit as no longer open */ 2351 sc->aac_state &= ~AAC_STATE_OPEN; 2352 2353 return 0; 2354 } 2355 2356 static int 2357 aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2358 { 2359 union aac_statrequest *as; 2360 struct aac_softc *sc; 2361 int error = 0; 2362 int i; 2363 2364 debug_called(2); 2365 2366 as = (union aac_statrequest *)arg; 2367 sc = dev->si_drv1; 2368 2369 switch (cmd) { 2370 case AACIO_STATS: 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 break; 2385 2386 case FSACTL_SENDFIB: 2387 arg = *(caddr_t*)arg; 2388 case FSACTL_LNX_SENDFIB: 2389 debug(1, "FSACTL_SENDFIB"); 2390 error = aac_ioctl_sendfib(sc, arg); 2391 break; 2392 case FSACTL_AIF_THREAD: 2393 case FSACTL_LNX_AIF_THREAD: 2394 debug(1, "FSACTL_AIF_THREAD"); 2395 error = EINVAL; 2396 break; 2397 case FSACTL_OPEN_GET_ADAPTER_FIB: 2398 arg = *(caddr_t*)arg; 2399 case FSACTL_LNX_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 arg = *(caddr_t*)arg; 2418 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2419 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2420 error = aac_getnext_aif(sc, arg); 2421 break; 2422 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2423 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2424 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2425 /* don't do anything here */ 2426 break; 2427 case FSACTL_MINIPORT_REV_CHECK: 2428 arg = *(caddr_t*)arg; 2429 case FSACTL_LNX_MINIPORT_REV_CHECK: 2430 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2431 error = aac_rev_check(sc, arg); 2432 break; 2433 case FSACTL_QUERY_DISK: 2434 arg = *(caddr_t*)arg; 2435 case FSACTL_LNX_QUERY_DISK: 2436 debug(1, "FSACTL_QUERY_DISK"); 2437 error = aac_query_disk(sc, arg); 2438 break; 2439 case FSACTL_DELETE_DISK: 2440 case FSACTL_LNX_DELETE_DISK: 2441 /* 2442 * We don't trust the underland to tell us when to delete a 2443 * container, rather we rely on an AIF coming from the 2444 * controller 2445 */ 2446 error = 0; 2447 break; 2448 default: 2449 debug(1, "unsupported cmd 0x%lx\n", cmd); 2450 error = EINVAL; 2451 break; 2452 } 2453 return(error); 2454 } 2455 2456 static int 2457 aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2458 { 2459 struct aac_softc *sc; 2460 int revents; 2461 2462 sc = dev->si_drv1; 2463 revents = 0; 2464 2465 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2466 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2467 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2468 revents |= poll_events & (POLLIN | POLLRDNORM); 2469 } 2470 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2471 2472 if (revents == 0) { 2473 if (poll_events & (POLLIN | POLLRDNORM)) 2474 selrecord(td, &sc->rcv_select); 2475 } 2476 2477 return (revents); 2478 } 2479 2480 /* 2481 * Send a FIB supplied from userspace 2482 */ 2483 static int 2484 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2485 { 2486 struct aac_command *cm; 2487 int size, error; 2488 2489 debug_called(2); 2490 2491 cm = NULL; 2492 2493 /* 2494 * Get a command 2495 */ 2496 if (aac_alloc_command(sc, &cm)) { 2497 error = EBUSY; 2498 goto out; 2499 } 2500 2501 /* 2502 * Fetch the FIB header, then re-copy to get data as well. 2503 */ 2504 if ((error = copyin(ufib, cm->cm_fib, 2505 sizeof(struct aac_fib_header))) != 0) 2506 goto out; 2507 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2508 if (size > sizeof(struct aac_fib)) { 2509 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2510 size, sizeof(struct aac_fib)); 2511 size = sizeof(struct aac_fib); 2512 } 2513 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2514 goto out; 2515 cm->cm_fib->Header.Size = size; 2516 cm->cm_timestamp = time_second; 2517 2518 /* 2519 * Pass the FIB to the controller, wait for it to complete. 2520 */ 2521 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2522 printf("aac_wait_command return %d\n", error); 2523 goto out; 2524 } 2525 2526 /* 2527 * Copy the FIB and data back out to the caller. 2528 */ 2529 size = cm->cm_fib->Header.Size; 2530 if (size > sizeof(struct aac_fib)) { 2531 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2532 size, sizeof(struct aac_fib)); 2533 size = sizeof(struct aac_fib); 2534 } 2535 error = copyout(cm->cm_fib, ufib, size); 2536 2537 out: 2538 if (cm != NULL) { 2539 aac_release_command(cm); 2540 } 2541 return(error); 2542 } 2543 2544 /* 2545 * Handle an AIF sent to us by the controller; queue it for later reference. 2546 * If the queue fills up, then drop the older entries. 2547 */ 2548 static void 2549 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2550 { 2551 struct aac_aif_command *aif; 2552 struct aac_container *co, *co_next; 2553 struct aac_mntinfo *mi; 2554 struct aac_mntinforesp *mir = NULL; 2555 u_int16_t rsize; 2556 int next, found; 2557 int added = 0, i = 0; 2558 2559 debug_called(2); 2560 2561 aif = (struct aac_aif_command*)&fib->data[0]; 2562 aac_print_aif(sc, aif); 2563 2564 /* Is it an event that we should care about? */ 2565 switch (aif->command) { 2566 case AifCmdEventNotify: 2567 switch (aif->data.EN.type) { 2568 case AifEnAddContainer: 2569 case AifEnDeleteContainer: 2570 /* 2571 * A container was added or deleted, but the message 2572 * doesn't tell us anything else! Re-enumerate the 2573 * containers and sort things out. 2574 */ 2575 aac_alloc_sync_fib(sc, &fib, 0); 2576 mi = (struct aac_mntinfo *)&fib->data[0]; 2577 do { 2578 /* 2579 * Ask the controller for its containers one at 2580 * a time. 2581 * XXX What if the controller's list changes 2582 * midway through this enumaration? 2583 * XXX This should be done async. 2584 */ 2585 bzero(mi, sizeof(struct aac_mntinfo)); 2586 mi->Command = VM_NameServe; 2587 mi->MntType = FT_FILESYS; 2588 mi->MntCount = i; 2589 rsize = sizeof(mir); 2590 if (aac_sync_fib(sc, ContainerCommand, 0, fib, 2591 sizeof(struct aac_mntinfo))) { 2592 debug(2, "Error probing container %d\n", 2593 i); 2594 continue; 2595 } 2596 mir = (struct aac_mntinforesp *)&fib->data[0]; 2597 /* 2598 * Check the container against our list. 2599 * co->co_found was already set to 0 in a 2600 * previous run. 2601 */ 2602 if ((mir->Status == ST_OK) && 2603 (mir->MntTable[0].VolType != CT_NONE)) { 2604 found = 0; 2605 TAILQ_FOREACH(co, 2606 &sc->aac_container_tqh, 2607 co_link) { 2608 if (co->co_mntobj.ObjectId == 2609 mir->MntTable[0].ObjectId) { 2610 co->co_found = 1; 2611 found = 1; 2612 break; 2613 } 2614 } 2615 /* 2616 * If the container matched, continue 2617 * in the list. 2618 */ 2619 if (found) { 2620 i++; 2621 continue; 2622 } 2623 2624 /* 2625 * This is a new container. Do all the 2626 * appropriate things to set it up. */ 2627 aac_add_container(sc, mir, 1); 2628 added = 1; 2629 } 2630 i++; 2631 } while ((i < mir->MntRespCount) && 2632 (i < AAC_MAX_CONTAINERS)); 2633 aac_release_sync_fib(sc); 2634 2635 /* 2636 * Go through our list of containers and see which ones 2637 * were not marked 'found'. Since the controller didn't 2638 * list them they must have been deleted. Do the 2639 * appropriate steps to destroy the device. Also reset 2640 * the co->co_found field. 2641 */ 2642 co = TAILQ_FIRST(&sc->aac_container_tqh); 2643 while (co != NULL) { 2644 if (co->co_found == 0) { 2645 device_delete_child(sc->aac_dev, 2646 co->co_disk); 2647 co_next = TAILQ_NEXT(co, co_link); 2648 AAC_LOCK_ACQUIRE(&sc-> 2649 aac_container_lock); 2650 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2651 co_link); 2652 AAC_LOCK_RELEASE(&sc-> 2653 aac_container_lock); 2654 FREE(co, M_AACBUF); 2655 co = co_next; 2656 } else { 2657 co->co_found = 0; 2658 co = TAILQ_NEXT(co, co_link); 2659 } 2660 } 2661 2662 /* Attach the newly created containers */ 2663 if (added) 2664 bus_generic_attach(sc->aac_dev); 2665 2666 break; 2667 2668 default: 2669 break; 2670 } 2671 2672 default: 2673 break; 2674 } 2675 2676 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2677 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2678 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2679 if (next != sc->aac_aifq_tail) { 2680 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2681 sc->aac_aifq_head = next; 2682 2683 /* On the off chance that someone is sleeping for an aif... */ 2684 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2685 wakeup(sc->aac_aifq); 2686 /* token may have been lost */ 2687 /* Wakeup any poll()ers */ 2688 selwakeup(&sc->rcv_select); 2689 /* token may have been lost */ 2690 } 2691 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2692 2693 return; 2694 } 2695 2696 /* 2697 * Return the Revision of the driver to userspace and check to see if the 2698 * userspace app is possibly compatible. This is extremely bogus since 2699 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2700 * returning what the card reported. 2701 */ 2702 static int 2703 aac_rev_check(struct aac_softc *sc, caddr_t udata) 2704 { 2705 struct aac_rev_check rev_check; 2706 struct aac_rev_check_resp rev_check_resp; 2707 int error = 0; 2708 2709 debug_called(2); 2710 2711 /* 2712 * Copyin the revision struct from userspace 2713 */ 2714 if ((error = copyin(udata, (caddr_t)&rev_check, 2715 sizeof(struct aac_rev_check))) != 0) { 2716 return error; 2717 } 2718 2719 debug(2, "Userland revision= %d\n", 2720 rev_check.callingRevision.buildNumber); 2721 2722 /* 2723 * Doctor up the response struct. 2724 */ 2725 rev_check_resp.possiblyCompatible = 1; 2726 rev_check_resp.adapterSWRevision.external.ul = 2727 sc->aac_revision.external.ul; 2728 rev_check_resp.adapterSWRevision.buildNumber = 2729 sc->aac_revision.buildNumber; 2730 2731 return(copyout((caddr_t)&rev_check_resp, udata, 2732 sizeof(struct aac_rev_check_resp))); 2733 } 2734 2735 /* 2736 * Pass the caller the next AIF in their queue 2737 */ 2738 static int 2739 aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2740 { 2741 struct get_adapter_fib_ioctl agf; 2742 int error, s; 2743 2744 debug_called(2); 2745 2746 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2747 2748 /* 2749 * Check the magic number that we gave the caller. 2750 */ 2751 if (agf.AdapterFibContext != (int)sc->aifthread) { 2752 error = EFAULT; 2753 } else { 2754 2755 s = splbio(); 2756 error = aac_return_aif(sc, agf.AifFib); 2757 2758 if ((error == EAGAIN) && (agf.Wait)) { 2759 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2760 while (error == EAGAIN) { 2761 error = tsleep(sc->aac_aifq, 2762 PCATCH, "aacaif", 0); 2763 if (error == 0) 2764 error = aac_return_aif(sc, 2765 agf.AifFib); 2766 } 2767 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2768 } 2769 splx(s); 2770 } 2771 } 2772 return(error); 2773 } 2774 2775 /* 2776 * Hand the next AIF off the top of the queue out to userspace. 2777 * 2778 * YYY token could be lost during copyout 2779 */ 2780 static int 2781 aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2782 { 2783 int error; 2784 2785 debug_called(2); 2786 2787 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2788 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2789 error = EAGAIN; 2790 } else { 2791 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2792 sizeof(struct aac_aif_command)); 2793 if (error) 2794 printf("aac_return_aif: copyout returned %d\n", error); 2795 if (!error) 2796 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2797 AAC_AIFQ_LENGTH; 2798 } 2799 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2800 return(error); 2801 } 2802 2803 /* 2804 * Give the userland some information about the container. The AAC arch 2805 * expects the driver to be a SCSI passthrough type driver, so it expects 2806 * the containers to have b:t:l numbers. Fake it. 2807 */ 2808 static int 2809 aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2810 { 2811 struct aac_query_disk query_disk; 2812 struct aac_container *co; 2813 struct aac_disk *disk; 2814 int error, id; 2815 2816 debug_called(2); 2817 2818 disk = NULL; 2819 2820 error = copyin(uptr, (caddr_t)&query_disk, 2821 sizeof(struct aac_query_disk)); 2822 if (error) 2823 return (error); 2824 2825 id = query_disk.ContainerNumber; 2826 if (id == -1) 2827 return (EINVAL); 2828 2829 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2830 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2831 if (co->co_mntobj.ObjectId == id) 2832 break; 2833 } 2834 2835 if (co == NULL) { 2836 query_disk.Valid = 0; 2837 query_disk.Locked = 0; 2838 query_disk.Deleted = 1; /* XXX is this right? */ 2839 } else { 2840 disk = device_get_softc(co->co_disk); 2841 query_disk.Valid = 1; 2842 query_disk.Locked = 2843 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2844 query_disk.Deleted = 0; 2845 query_disk.Bus = device_get_unit(sc->aac_dev); 2846 query_disk.Target = disk->unit; 2847 query_disk.Lun = 0; 2848 query_disk.UnMapped = 0; 2849 bcopy(disk->ad_dev_t->si_name, 2850 &query_disk.diskDeviceName[0], 10); 2851 } 2852 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2853 2854 error = copyout((caddr_t)&query_disk, uptr, 2855 sizeof(struct aac_query_disk)); 2856 2857 return (error); 2858 } 2859 2860 static void 2861 aac_get_bus_info(struct aac_softc *sc) 2862 { 2863 struct aac_fib *fib; 2864 struct aac_ctcfg *c_cmd; 2865 struct aac_ctcfg_resp *c_resp; 2866 struct aac_vmioctl *vmi; 2867 struct aac_vmi_businf_resp *vmi_resp; 2868 struct aac_getbusinf businfo; 2869 struct aac_cam_inf *caminf; 2870 device_t child; 2871 int i, found, error; 2872 2873 aac_alloc_sync_fib(sc, &fib, 0); 2874 c_cmd = (struct aac_ctcfg *)&fib->data[0]; 2875 bzero(c_cmd, sizeof(struct aac_ctcfg)); 2876 2877 c_cmd->Command = VM_ContainerConfig; 2878 c_cmd->cmd = CT_GET_SCSI_METHOD; 2879 c_cmd->param = 0; 2880 2881 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2882 sizeof(struct aac_ctcfg)); 2883 if (error) { 2884 device_printf(sc->aac_dev, "Error %d sending " 2885 "VM_ContainerConfig command\n", error); 2886 aac_release_sync_fib(sc); 2887 return; 2888 } 2889 2890 c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; 2891 if (c_resp->Status != ST_OK) { 2892 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", 2893 c_resp->Status); 2894 aac_release_sync_fib(sc); 2895 return; 2896 } 2897 2898 sc->scsi_method_id = c_resp->param; 2899 2900 vmi = (struct aac_vmioctl *)&fib->data[0]; 2901 bzero(vmi, sizeof(struct aac_vmioctl)); 2902 2903 vmi->Command = VM_Ioctl; 2904 vmi->ObjType = FT_DRIVE; 2905 vmi->MethId = sc->scsi_method_id; 2906 vmi->ObjId = 0; 2907 vmi->IoctlCmd = GetBusInfo; 2908 2909 error = aac_sync_fib(sc, ContainerCommand, 0, fib, 2910 sizeof(struct aac_vmioctl)); 2911 if (error) { 2912 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", 2913 error); 2914 aac_release_sync_fib(sc); 2915 return; 2916 } 2917 2918 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; 2919 if (vmi_resp->Status != ST_OK) { 2920 debug(1, "VM_Ioctl returned %d\n", vmi_resp->Status); 2921 aac_release_sync_fib(sc); 2922 return; 2923 } 2924 2925 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); 2926 aac_release_sync_fib(sc); 2927 2928 found = 0; 2929 for (i = 0; i < businfo.BusCount; i++) { 2930 if (businfo.BusValid[i] != AAC_BUS_VALID) 2931 continue; 2932 2933 MALLOC(caminf, struct aac_cam_inf *, 2934 sizeof(struct aac_cam_inf), M_AACBUF, M_NOWAIT | M_ZERO); 2935 if (caminf == NULL) 2936 continue; 2937 2938 child = device_add_child(sc->aac_dev, "aacp", -1); 2939 if (child == NULL) { 2940 device_printf(sc->aac_dev, "device_add_child failed\n"); 2941 continue; 2942 } 2943 2944 caminf->TargetsPerBus = businfo.TargetsPerBus; 2945 caminf->BusNumber = i; 2946 caminf->InitiatorBusId = businfo.InitiatorBusId[i]; 2947 caminf->aac_sc = sc; 2948 2949 device_set_ivars(child, caminf); 2950 device_set_desc(child, "SCSI Passthrough Bus"); 2951 2952 found = 1; 2953 } 2954 2955 if (found) 2956 bus_generic_attach(sc->aac_dev); 2957 2958 return; 2959 } 2960