2 * Copyright (c) 2000 Michael Smith
3 * Copyright (c) 2001 Scott Long
4 * Copyright (c) 2000 BSDi
5 * Copyright (c) 2001 Adaptec, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
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 1.33 2007/11/10 19:02:04 swildner Exp $
34 * Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters.
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>
47 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
48 #include <sys/selinfo.h>
50 #include <sys/select.h>
53 #include "aac_compat.h"
57 #include <sys/devicestat.h>
59 #include <sys/signalvar.h>
61 #include <sys/eventhandler.h>
64 #include "aac_ioctl.h"
66 #include "aac_tables.h"
69 static void aac_startup(void *arg);
70 static void aac_add_container(struct aac_softc *sc,
71 struct aac_mntinforesp *mir, int f);
72 static void aac_get_bus_info(struct aac_softc *sc);
73 static int aac_shutdown(device_t dev);
75 /* Command Processing */
76 static void aac_timeout(void *ssc);
77 static int aac_start(struct aac_command *cm);
78 static void aac_complete(void *context, int pending);
79 static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp);
80 static void aac_bio_complete(struct aac_command *cm);
81 static int aac_wait_command(struct aac_command *cm, int timeout);
82 static void aac_host_command(struct aac_softc *sc);
83 static void aac_host_response(struct aac_softc *sc);
85 /* Command Buffer Management */
86 static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs,
88 static int aac_alloc_commands(struct aac_softc *sc);
89 static void aac_free_commands(struct aac_softc *sc);
90 static void aac_map_command(struct aac_command *cm);
91 static void aac_unmap_command(struct aac_command *cm);
93 /* Hardware Interface */
94 static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg,
96 static int aac_check_firmware(struct aac_softc *sc);
97 static int aac_init(struct aac_softc *sc);
98 static int aac_sync_command(struct aac_softc *sc, u_int32_t command,
99 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
100 u_int32_t arg3, u_int32_t *sp);
101 static int aac_enqueue_fib(struct aac_softc *sc, int queue,
102 struct aac_command *cm);
103 static int aac_dequeue_fib(struct aac_softc *sc, int queue,
104 u_int32_t *fib_size, struct aac_fib **fib_addr);
105 static int aac_enqueue_response(struct aac_softc *sc, int queue,
106 struct aac_fib *fib);
108 /* Falcon/PPC interface */
109 static int aac_fa_get_fwstatus(struct aac_softc *sc);
110 static void aac_fa_qnotify(struct aac_softc *sc, int qbit);
111 static int aac_fa_get_istatus(struct aac_softc *sc);
112 static void aac_fa_clear_istatus(struct aac_softc *sc, int mask);
113 static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command,
114 u_int32_t arg0, u_int32_t arg1,
115 u_int32_t arg2, u_int32_t arg3);
116 static int aac_fa_get_mailbox(struct aac_softc *sc, int mb);
117 static void aac_fa_set_interrupts(struct aac_softc *sc, int enable);
119 struct aac_interface aac_fa_interface = {
123 aac_fa_clear_istatus,
126 aac_fa_set_interrupts
129 /* StrongARM interface */
130 static int aac_sa_get_fwstatus(struct aac_softc *sc);
131 static void aac_sa_qnotify(struct aac_softc *sc, int qbit);
132 static int aac_sa_get_istatus(struct aac_softc *sc);
133 static void aac_sa_clear_istatus(struct aac_softc *sc, int mask);
134 static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command,
135 u_int32_t arg0, u_int32_t arg1,
136 u_int32_t arg2, u_int32_t arg3);
137 static int aac_sa_get_mailbox(struct aac_softc *sc, int mb);
138 static void aac_sa_set_interrupts(struct aac_softc *sc, int enable);
140 struct aac_interface aac_sa_interface = {
144 aac_sa_clear_istatus,
147 aac_sa_set_interrupts
150 /* i960Rx interface */
151 static int aac_rx_get_fwstatus(struct aac_softc *sc);
152 static void aac_rx_qnotify(struct aac_softc *sc, int qbit);
153 static int aac_rx_get_istatus(struct aac_softc *sc);
154 static void aac_rx_clear_istatus(struct aac_softc *sc, int mask);
155 static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command,
156 u_int32_t arg0, u_int32_t arg1,
157 u_int32_t arg2, u_int32_t arg3);
158 static int aac_rx_get_mailbox(struct aac_softc *sc, int mb);
159 static void aac_rx_set_interrupts(struct aac_softc *sc, int enable);
161 struct aac_interface aac_rx_interface = {
165 aac_rx_clear_istatus,
168 aac_rx_set_interrupts
171 /* Debugging and Diagnostics */
172 static void aac_describe_controller(struct aac_softc *sc);
173 static char *aac_describe_code(struct aac_code_lookup *table,
176 /* Management Interface */
177 static d_open_t aac_open;
178 static d_close_t aac_close;
179 static d_ioctl_t aac_ioctl;
180 static d_poll_t aac_poll;
181 static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib);
182 static void aac_handle_aif(struct aac_softc *sc,
183 struct aac_fib *fib);
184 static int aac_rev_check(struct aac_softc *sc, caddr_t udata);
185 static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg);
186 static int aac_return_aif(struct aac_softc *sc, caddr_t uptr);
187 static int aac_query_disk(struct aac_softc *sc, caddr_t uptr);
189 #define AAC_CDEV_MAJOR 150
191 static struct dev_ops aac_ops = {
192 { "aac", AAC_CDEV_MAJOR, 0 },
194 .d_close = aac_close,
195 .d_ioctl = aac_ioctl,
199 DECLARE_DUMMY_MODULE(aac);
201 MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver");
204 SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters");
211 * Initialise the controller and softc
214 aac_attach(struct aac_softc *sc)
219 callout_init(&sc->aac_watchdog);
222 * Initialise per-controller queues.
227 aac_initq_complete(sc);
230 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
232 * Initialise command-completion task.
234 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc);
237 /* disable interrupts before we enable anything */
238 AAC_MASK_INTERRUPTS(sc);
240 /* mark controller as suspended until we get ourselves organised */
241 sc->aac_state |= AAC_STATE_SUSPEND;
244 * Check that the firmware on the card is supported.
246 if ((error = aac_check_firmware(sc)) != 0)
249 /* Init the sync fib lock */
250 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock");
253 * Initialise the adapter.
255 if ((error = aac_init(sc)) != 0)
259 * Print a little information about the controller.
261 aac_describe_controller(sc);
264 * Register to probe our containers later.
266 TAILQ_INIT(&sc->aac_container_tqh);
267 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock");
270 * Lock for the AIF queue
272 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock");
274 sc->aac_ich.ich_func = aac_startup;
275 sc->aac_ich.ich_arg = sc;
276 sc->aac_ich.ich_desc = "aac";
277 if (config_intrhook_establish(&sc->aac_ich) != 0) {
278 device_printf(sc->aac_dev,
279 "can't establish configuration hook\n");
284 * Make the control device.
286 unit = device_get_unit(sc->aac_dev);
287 dev_ops_add(&aac_ops, -1, unit);
288 sc->aac_dev_t = make_dev(&aac_ops, unit, UID_ROOT, GID_WHEEL, 0644,
290 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
291 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit);
292 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit);
294 sc->aac_dev_t->si_drv1 = sc;
295 reference_dev(sc->aac_dev_t);
297 /* Create the AIF thread */
298 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
299 if (kthread_create((void(*)(void *))aac_host_command, sc,
300 &sc->aifthread, 0, "aac%daif", unit))
302 if (kthread_create((void(*)(void *))aac_host_command, sc,
303 &sc->aifthread, "aac%daif", unit))
305 panic("Could not create AIF thread\n");
307 /* Register the shutdown method to only be called post-dump */
308 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, aac_shutdown, sc->aac_dev,
309 SHUTDOWN_PRI_DRIVER)) == NULL)
310 device_printf(sc->aac_dev, "shutdown event registration failed\n");
312 /* Register with CAM for the non-DASD devices */
313 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0)
314 aac_get_bus_info(sc);
320 * Probe for containers, create disks.
323 aac_startup(void *arg)
325 struct aac_softc *sc;
327 struct aac_mntinfo *mi;
328 struct aac_mntinforesp *mir = NULL;
329 int count = 0, i = 0;
333 sc = (struct aac_softc *)arg;
335 /* disconnect ourselves from the intrhook chain */
336 config_intrhook_disestablish(&sc->aac_ich);
338 aac_alloc_sync_fib(sc, &fib, 0);
339 mi = (struct aac_mntinfo *)&fib->data[0];
341 /* loop over possible containers */
343 /* request information on this container */
344 bzero(mi, sizeof(struct aac_mntinfo));
345 mi->Command = VM_NameServe;
346 mi->MntType = FT_FILESYS;
348 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
349 sizeof(struct aac_mntinfo))) {
350 device_printf(sc->aac_dev,
351 "error probing container %d", i);
356 mir = (struct aac_mntinforesp *)&fib->data[0];
357 /* XXX Need to check if count changed */
358 count = mir->MntRespCount;
359 aac_add_container(sc, mir, 0);
361 } while ((i < count) && (i < AAC_MAX_CONTAINERS));
363 aac_release_sync_fib(sc);
365 /* poke the bus to actually attach the child devices */
366 if (bus_generic_attach(sc->aac_dev))
367 device_printf(sc->aac_dev, "bus_generic_attach failed\n");
369 /* mark the controller up */
370 sc->aac_state &= ~AAC_STATE_SUSPEND;
372 /* enable interrupts now */
373 AAC_UNMASK_INTERRUPTS(sc);
375 /* enable the timeout watchdog */
376 callout_reset(&sc->aac_watchdog, AAC_PERIODIC_INTERVAL * hz,
381 * Create a device to respresent a new container
384 aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f)
386 struct aac_container *co;
390 * Check container volume type for validity. Note that many of
391 * the possible types may never show up.
393 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) {
394 MALLOC(co, struct aac_container *, sizeof *co, M_AACBUF,
396 debug(1, "id %x name '%.16s' size %u type %d",
397 mir->MntTable[0].ObjectId,
398 mir->MntTable[0].FileSystemName,
399 mir->MntTable[0].Capacity, mir->MntTable[0].VolType);
401 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL)
402 device_printf(sc->aac_dev, "device_add_child failed\n");
404 device_set_ivars(child, co);
405 device_set_desc(child, aac_describe_code(aac_container_types,
406 mir->MntTable[0].VolType));
409 bcopy(&mir->MntTable[0], &co->co_mntobj,
410 sizeof(struct aac_mntobj));
411 AAC_LOCK_ACQUIRE(&sc->aac_container_lock);
412 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link);
413 AAC_LOCK_RELEASE(&sc->aac_container_lock);
418 * Free all of the resources associated with (sc)
420 * Should not be called if the controller is active.
423 aac_free(struct aac_softc *sc)
427 /* remove the control device */
428 if (sc->aac_dev_t != NULL)
429 destroy_dev(sc->aac_dev_t);
431 /* throw away any FIB buffers, discard the FIB DMA tag */
432 if (sc->aac_fibs != NULL)
433 aac_free_commands(sc);
434 if (sc->aac_fib_dmat)
435 bus_dma_tag_destroy(sc->aac_fib_dmat);
437 /* destroy the common area */
438 if (sc->aac_common) {
439 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap);
440 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common,
441 sc->aac_common_dmamap);
443 if (sc->aac_common_dmat)
444 bus_dma_tag_destroy(sc->aac_common_dmat);
446 /* disconnect the interrupt handler */
448 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr);
449 if (sc->aac_irq != NULL)
450 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid,
453 /* destroy data-transfer DMA tag */
454 if (sc->aac_buffer_dmat)
455 bus_dma_tag_destroy(sc->aac_buffer_dmat);
457 /* destroy the parent DMA tag */
458 if (sc->aac_parent_dmat)
459 bus_dma_tag_destroy(sc->aac_parent_dmat);
461 /* release the register window mapping */
462 if (sc->aac_regs_resource != NULL) {
463 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY,
464 sc->aac_regs_rid, sc->aac_regs_resource);
466 dev_ops_remove(&aac_ops, -1, device_get_unit(sc->aac_dev));
470 * Disconnect from the controller completely, in preparation for unload.
473 aac_detach(device_t dev)
475 struct aac_softc *sc;
482 sc = device_get_softc(dev);
484 callout_stop(&sc->aac_watchdog);
486 if (sc->aac_state & AAC_STATE_OPEN)
490 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) {
491 sc->aifflags |= AAC_AIFFLAGS_EXIT;
492 wakeup(sc->aifthread);
493 tsleep(sc->aac_dev, PCATCH, "aacdch", 30 * hz);
496 if (sc->aifflags & AAC_AIFFLAGS_RUNNING)
497 panic("Cannot shutdown AIF thread\n");
499 if ((error = aac_shutdown(dev)))
511 * Bring the controller down to a dormant state and detach all child devices.
513 * This function is called before detach or system shutdown.
515 * Note that we can assume that the bioq on the controller is empty, as we won't
516 * allow shutdown if any device is open.
519 aac_shutdown(device_t dev)
521 struct aac_softc *sc;
523 struct aac_close_command *cc;
527 sc = device_get_softc(dev);
531 sc->aac_state |= AAC_STATE_SUSPEND;
534 * Send a Container shutdown followed by a HostShutdown FIB to the
535 * controller to convince it that we don't want to talk to it anymore.
536 * We've been closed and all I/O completed already
538 device_printf(sc->aac_dev, "shutting down controller...");
540 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE);
541 cc = (struct aac_close_command *)&fib->data[0];
543 bzero(cc, sizeof(struct aac_close_command));
544 cc->Command = VM_CloseAll;
545 cc->ContainerId = 0xffffffff;
546 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
547 sizeof(struct aac_close_command)))
548 kprintf("FAILED.\n");
552 * XXX Issuing this command to the controller makes it shut down
553 * but also keeps it from coming back up without a reset of the
554 * PCI bus. This is not desirable if you are just unloading the
555 * driver module with the intent to reload it later.
557 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN,
559 kprintf("FAILED.\n");
565 AAC_MASK_INTERRUPTS(sc);
572 * Bring the controller to a quiescent state, ready for system suspend.
575 aac_suspend(device_t dev)
577 struct aac_softc *sc;
581 sc = device_get_softc(dev);
585 sc->aac_state |= AAC_STATE_SUSPEND;
587 AAC_MASK_INTERRUPTS(sc);
593 * Bring the controller back to a state ready for operation.
596 aac_resume(device_t dev)
598 struct aac_softc *sc;
602 sc = device_get_softc(dev);
604 sc->aac_state &= ~AAC_STATE_SUSPEND;
605 AAC_UNMASK_INTERRUPTS(sc);
615 struct aac_softc *sc;
617 u_int32_t *resp_queue;
621 sc = (struct aac_softc *)arg;
624 * Optimize the common case of adapter response interrupts.
625 * We must read from the card prior to processing the responses
626 * to ensure the clear is flushed prior to accessing the queues.
627 * Reading the queues from local memory might save us a PCI read.
629 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE];
630 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX])
631 reason = AAC_DB_RESPONSE_READY;
633 reason = AAC_GET_ISTATUS(sc);
634 AAC_CLEAR_ISTATUS(sc, reason);
635 (void)AAC_GET_ISTATUS(sc);
637 /* It's not ok to return here because of races with the previous step */
638 if (reason & AAC_DB_RESPONSE_READY)
639 aac_host_response(sc);
641 /* controller wants to talk to the log */
642 if (reason & AAC_DB_PRINTF)
643 aac_print_printf(sc);
645 /* controller has a message for us? */
646 if (reason & AAC_DB_COMMAND_READY) {
647 /* XXX What happens if the thread is already awake? */
648 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) {
649 sc->aifflags |= AAC_AIFFLAGS_PENDING;
650 wakeup(sc->aifthread);
660 * Start as much queued I/O as possible on the controller
663 aac_startio(struct aac_softc *sc)
665 struct aac_command *cm;
671 * Try to get a command that's been put off for lack of
674 cm = aac_dequeue_ready(sc);
677 * Try to build a command off the bio queue (ignore error
681 aac_bio_command(sc, &cm);
687 /* try to give the command to the controller */
688 if (aac_start(cm) == EBUSY) {
689 /* put it on the ready queue for later */
690 aac_requeue_ready(cm);
697 * Deliver a command to the controller; allocate controller resources at the
698 * last moment when possible.
701 aac_start(struct aac_command *cm)
703 struct aac_softc *sc;
710 /* get the command mapped */
713 /* fix up the address values in the FIB */
714 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
715 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys;
717 /* save a pointer to the command for speedy reverse-lookup */
718 cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical
720 /* put the FIB on the outbound queue */
721 error = aac_enqueue_fib(sc, cm->cm_queue, cm);
726 * Handle notification of one or more FIBs coming from the controller.
729 aac_host_command(struct aac_softc *sc)
737 sc->aifflags |= AAC_AIFFLAGS_RUNNING;
739 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) {
740 if (!(sc->aifflags & AAC_AIFFLAGS_PENDING))
741 tsleep(sc->aifthread, 0, "aifthd", 15 * hz);
743 sc->aifflags &= ~AAC_AIFFLAGS_PENDING;
745 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE,
747 break; /* nothing to do */
749 AAC_PRINT_FIB(sc, fib);
751 switch (fib->Header.Command) {
753 aac_handle_aif(sc, fib);
756 device_printf(sc->aac_dev, "unknown command "
757 "from controller\n");
761 /* Return the AIF to the controller. */
762 if ((fib->Header.XferState == 0) ||
763 (fib->Header.StructType != AAC_FIBTYPE_TFIB))
766 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) {
767 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST;
768 *(AAC_FSAStatus*)fib->data = ST_OK;
770 /* XXX Compute the Size field? */
771 size = fib->Header.Size;
772 if (size > sizeof(struct aac_fib)) {
773 size = sizeof(struct aac_fib);
774 fib->Header.Size = size;
777 * Since we did not generate this command, it
778 * cannot go through the normal
779 * enqueue->startio chain.
781 aac_enqueue_response(sc,
782 AAC_ADAP_NORM_RESP_QUEUE,
787 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING;
790 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
797 * Handle notification of one or more FIBs completed by the controller
800 aac_host_response(struct aac_softc *sc)
802 struct aac_command *cm;
809 /* look for completed FIBs on our queue */
810 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size,
812 break; /* nothing to do */
814 /* get the command, unmap and queue for later processing */
815 cm = (struct aac_command *)fib->Header.SenderData;
817 AAC_PRINT_FIB(sc, fib);
820 aac_unmap_command(cm); /* XXX defer? */
821 aac_enqueue_complete(cm);
825 /* handle completion processing */
826 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
827 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete);
834 * Process completed commands.
837 aac_complete(void *context, int pending)
839 struct aac_softc *sc;
840 struct aac_command *cm;
844 sc = (struct aac_softc *)context;
846 /* pull completed commands off the queue */
848 cm = aac_dequeue_complete(sc);
851 cm->cm_flags |= AAC_CMD_COMPLETED;
853 /* is there a completion handler? */
854 if (cm->cm_complete != NULL) {
857 /* assume that someone is sleeping on this command */
862 /* see if we can start some more I/O */
867 * Handle a bio submitted from a disk device.
870 aac_submit_bio(struct aac_disk *ad, struct bio *bio)
872 struct aac_softc *sc;
876 bio->bio_driver_info = ad;
877 sc = ad->ad_controller;
879 /* queue the BIO and try to get some work done */
880 aac_enqueue_bio(sc, bio);
885 * Get a bio and build a command to go with it.
888 aac_bio_command(struct aac_softc *sc, struct aac_command **cmp)
890 struct aac_command *cm;
892 struct aac_blockread *br;
893 struct aac_blockwrite *bw;
900 /* get the resources we will need */
902 if ((bio = aac_dequeue_bio(sc)) == NULL)
904 if (aac_alloc_command(sc, &cm)) /* get a command */
907 /* fill out the command */
909 cm->cm_data = (void *)bp->b_data;
910 cm->cm_datalen = bp->b_bcount;
911 cm->cm_complete = aac_bio_complete;
912 cm->cm_private = bio;
913 cm->cm_timestamp = time_second;
914 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
918 fib->Header.XferState =
919 AAC_FIBSTATE_HOSTOWNED |
920 AAC_FIBSTATE_INITIALISED |
922 AAC_FIBSTATE_FROMHOST |
923 AAC_FIBSTATE_REXPECTED |
926 AAC_FIBSTATE_FAST_RESPONSE;
927 fib->Header.Command = ContainerCommand;
928 fib->Header.Size = sizeof(struct aac_fib_header);
930 /* build the read/write request */
931 ad = (struct aac_disk *)bio->bio_driver_info;
932 if (bp->b_cmd == BUF_CMD_READ) {
933 br = (struct aac_blockread *)&fib->data[0];
934 br->Command = VM_CtBlockRead;
935 br->ContainerId = ad->ad_container->co_mntobj.ObjectId;
936 br->BlockNumber = bio->bio_offset / AAC_BLOCK_SIZE;
937 br->ByteCount = bp->b_bcount;
938 fib->Header.Size += sizeof(struct aac_blockread);
939 cm->cm_sgtable = &br->SgMap;
940 cm->cm_flags |= AAC_CMD_DATAIN;
942 bw = (struct aac_blockwrite *)&fib->data[0];
943 bw->Command = VM_CtBlockWrite;
944 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId;
945 bw->BlockNumber = bio->bio_offset / AAC_BLOCK_SIZE;
946 bw->ByteCount = bp->b_bcount;
947 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */
948 fib->Header.Size += sizeof(struct aac_blockwrite);
949 cm->cm_flags |= AAC_CMD_DATAOUT;
950 cm->cm_sgtable = &bw->SgMap;
958 aac_enqueue_bio(sc, bio);
960 aac_release_command(cm);
965 * Handle a bio-instigated command that has been completed.
968 aac_bio_complete(struct aac_command *cm)
970 struct aac_blockread_response *brr;
971 struct aac_blockwrite_response *bwr;
975 AAC_FSAStatus status;
977 /* fetch relevant status and then release the command */
978 bio = (struct bio *)cm->cm_private;
980 if (bp->b_cmd == BUF_CMD_READ) {
981 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0];
982 status = brr->Status;
984 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0];
985 status = bwr->Status;
987 aac_release_command(cm);
989 /* fix up the bio based on status */
990 if (status == ST_OK) {
995 bp->b_flags |= B_ERROR;
996 /* pass an error string out to the disk layer */
997 code = aac_describe_code(aac_command_status_table, status);
999 aac_biodone(bio, code);
1003 * Dump a block of data to the controller. If the queue is full, tell the
1004 * caller to hold off and wait for the queue to drain.
1007 aac_dump_enqueue(struct aac_disk *ad, u_int64_t lba, void *data, int dumppages)
1009 struct aac_softc *sc;
1010 struct aac_command *cm;
1011 struct aac_fib *fib;
1012 struct aac_blockwrite *bw;
1014 sc = ad->ad_controller;
1017 KKASSERT(lba <= 0x100000000ULL);
1019 if (aac_alloc_command(sc, &cm))
1022 /* fill out the command */
1024 cm->cm_datalen = dumppages * PAGE_SIZE;
1025 cm->cm_complete = NULL;
1026 cm->cm_private = NULL;
1027 cm->cm_timestamp = time_second;
1028 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
1032 fib->Header.XferState =
1033 AAC_FIBSTATE_HOSTOWNED |
1034 AAC_FIBSTATE_INITIALISED |
1035 AAC_FIBSTATE_FROMHOST |
1036 AAC_FIBSTATE_REXPECTED |
1038 fib->Header.Command = ContainerCommand;
1039 fib->Header.Size = sizeof(struct aac_fib_header);
1041 bw = (struct aac_blockwrite *)&fib->data[0];
1042 bw->Command = VM_CtBlockWrite;
1043 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId;
1044 bw->BlockNumber = lba;
1045 bw->ByteCount = dumppages * PAGE_SIZE;
1046 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */
1047 fib->Header.Size += sizeof(struct aac_blockwrite);
1048 cm->cm_flags |= AAC_CMD_DATAOUT;
1049 cm->cm_sgtable = &bw->SgMap;
1051 return (aac_start(cm));
1055 * Wait for the card's queue to drain when dumping. Also check for monitor
1059 aac_dump_complete(struct aac_softc *sc)
1061 struct aac_fib *fib;
1062 struct aac_command *cm;
1064 u_int32_t pi, ci, fib_size;
1067 reason = AAC_GET_ISTATUS(sc);
1068 if (reason & AAC_DB_RESPONSE_READY) {
1069 AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY);
1071 if (aac_dequeue_fib(sc,
1072 AAC_HOST_NORM_RESP_QUEUE,
1075 cm = (struct aac_command *)
1076 fib->Header.SenderData;
1078 AAC_PRINT_FIB(sc, fib);
1080 aac_remove_busy(cm);
1081 aac_unmap_command(cm);
1082 aac_enqueue_complete(cm);
1083 aac_release_command(cm);
1087 if (reason & AAC_DB_PRINTF) {
1088 AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF);
1089 aac_print_printf(sc);
1091 pi = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][
1092 AAC_PRODUCER_INDEX];
1093 ci = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][
1094 AAC_CONSUMER_INDEX];
1101 * Submit a command to the controller, return when it completes.
1102 * XXX This is very dangerous! If the card has gone out to lunch, we could
1103 * be stuck here forever. At the same time, signals are not caught
1104 * because there is a risk that a signal could wakeup the tsleep before
1105 * the card has a chance to complete the command. The passed in timeout
1106 * is ignored for the same reason. Since there is no way to cancel a
1107 * command in progress, we should probably create a 'dead' queue where
1108 * commands go that have been interrupted/timed-out/etc, that keeps them
1109 * out of the free pool. That way, if the card is just slow, it won't
1110 * spam the memory of a command that has been recycled.
1113 aac_wait_command(struct aac_command *cm, int timeout)
1119 /* Put the command on the ready queue and get things going */
1120 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
1121 aac_enqueue_ready(cm);
1122 aac_startio(cm->cm_sc);
1124 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) {
1125 error = tsleep(cm, 0, "aacwait", 0);
1132 *Command Buffer Management
1136 * Allocate a command.
1139 aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp)
1141 struct aac_command *cm;
1145 if ((cm = aac_dequeue_free(sc)) == NULL)
1153 * Release a command back to the freelist.
1156 aac_release_command(struct aac_command *cm)
1160 /* (re)initialise the command/FIB */
1161 cm->cm_sgtable = NULL;
1163 cm->cm_complete = NULL;
1164 cm->cm_private = NULL;
1165 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY;
1166 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB;
1167 cm->cm_fib->Header.Flags = 0;
1168 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib);
1171 * These are duplicated in aac_start to cover the case where an
1172 * intermediate stage may have destroyed them. They're left
1173 * initialised here for debugging purposes only.
1175 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
1176 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys;
1177 cm->cm_fib->Header.SenderData = 0;
1179 aac_enqueue_free(cm);
1183 * Map helper for command/FIB allocation.
1186 aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1188 struct aac_softc *sc;
1190 sc = (struct aac_softc *)arg;
1194 sc->aac_fibphys = segs[0].ds_addr;
1198 * Allocate and initialise commands/FIBs for this adapter.
1201 aac_alloc_commands(struct aac_softc *sc)
1203 struct aac_command *cm;
1208 /* allocate the FIBs in DMAable memory and load them */
1209 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs,
1210 BUS_DMA_NOWAIT, &sc->aac_fibmap)) {
1214 bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs,
1215 AAC_FIB_COUNT * sizeof(struct aac_fib),
1216 aac_map_command_helper, sc, 0);
1218 /* initialise constant fields in the command structure */
1219 bzero(sc->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib));
1220 for (i = 0; i < AAC_FIB_COUNT; i++) {
1221 cm = &sc->aac_command[i];
1223 cm->cm_fib = sc->aac_fibs + i;
1224 cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib));
1226 if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap))
1227 aac_release_command(cm);
1233 * Free FIBs owned by this adapter.
1236 aac_free_commands(struct aac_softc *sc)
1242 for (i = 0; i < AAC_FIB_COUNT; i++)
1243 bus_dmamap_destroy(sc->aac_buffer_dmat,
1244 sc->aac_command[i].cm_datamap);
1246 bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap);
1247 bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap);
1251 * Command-mapping helper function - populate this command's s/g table.
1254 aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1256 struct aac_command *cm;
1257 struct aac_fib *fib;
1258 struct aac_sg_table *sg;
1263 cm = (struct aac_command *)arg;
1266 /* find the s/g table */
1267 sg = cm->cm_sgtable;
1269 /* copy into the FIB */
1272 for (i = 0; i < nseg; i++) {
1273 sg->SgEntry[i].SgAddress = segs[i].ds_addr;
1274 sg->SgEntry[i].SgByteCount = segs[i].ds_len;
1276 /* update the FIB size for the s/g count */
1277 fib->Header.Size += nseg * sizeof(struct aac_sg_entry);
1283 * Map a command into controller-visible space.
1286 aac_map_command(struct aac_command *cm)
1288 struct aac_softc *sc;
1294 /* don't map more than once */
1295 if (cm->cm_flags & AAC_CMD_MAPPED)
1298 if (cm->cm_datalen != 0) {
1299 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap,
1300 cm->cm_data, cm->cm_datalen,
1301 aac_map_command_sg, cm, 0);
1303 if (cm->cm_flags & AAC_CMD_DATAIN)
1304 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1305 BUS_DMASYNC_PREREAD);
1306 if (cm->cm_flags & AAC_CMD_DATAOUT)
1307 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1308 BUS_DMASYNC_PREWRITE);
1310 cm->cm_flags |= AAC_CMD_MAPPED;
1314 * Unmap a command from controller-visible space.
1317 aac_unmap_command(struct aac_command *cm)
1319 struct aac_softc *sc;
1325 if (!(cm->cm_flags & AAC_CMD_MAPPED))
1328 if (cm->cm_datalen != 0) {
1329 if (cm->cm_flags & AAC_CMD_DATAIN)
1330 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1331 BUS_DMASYNC_POSTREAD);
1332 if (cm->cm_flags & AAC_CMD_DATAOUT)
1333 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1334 BUS_DMASYNC_POSTWRITE);
1336 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap);
1338 cm->cm_flags &= ~AAC_CMD_MAPPED;
1342 * Hardware Interface
1346 * Initialise the adapter.
1349 aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1351 struct aac_softc *sc;
1355 sc = (struct aac_softc *)arg;
1357 sc->aac_common_busaddr = segs[0].ds_addr;
1361 aac_check_firmware(struct aac_softc *sc)
1363 u_int32_t major, minor, options;
1368 * Retrieve the firmware version numbers. Dell PERC2/QC cards with
1369 * firmware version 1.x are not compatible with this driver.
1371 if (sc->flags & AAC_FLAGS_PERC2QC) {
1372 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0,
1374 device_printf(sc->aac_dev,
1375 "Error reading firmware version\n");
1379 /* These numbers are stored as ASCII! */
1380 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30;
1381 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30;
1383 device_printf(sc->aac_dev,
1384 "Firmware version %d.%d is not supported.\n",
1391 * Retrieve the capabilities/supported options word so we know what
1392 * work-arounds to enable.
1394 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) {
1395 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n");
1398 options = AAC_GET_MAILBOX(sc, 1);
1399 sc->supported_options = options;
1401 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 &&
1402 (sc->flags & AAC_FLAGS_NO4GB) == 0)
1403 sc->flags |= AAC_FLAGS_4GB_WINDOW;
1404 if (options & AAC_SUPPORTED_NONDASD)
1405 sc->flags |= AAC_FLAGS_ENABLE_CAM;
1411 aac_init(struct aac_softc *sc)
1413 struct aac_adapter_init *ip;
1422 * First wait for the adapter to come ready.
1426 code = AAC_GET_FWSTATUS(sc);
1427 if (code & AAC_SELF_TEST_FAILED) {
1428 device_printf(sc->aac_dev, "FATAL: selftest failed\n");
1431 if (code & AAC_KERNEL_PANIC) {
1432 device_printf(sc->aac_dev,
1433 "FATAL: controller kernel panic\n");
1436 if (time_second > (then + AAC_BOOT_TIMEOUT)) {
1437 device_printf(sc->aac_dev,
1438 "FATAL: controller not coming ready, "
1439 "status %x\n", code);
1442 } while (!(code & AAC_UP_AND_RUNNING));
1446 * Create DMA tag for mapping buffers into controller-addressable space.
1448 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1449 1, 0, /* algnmnt, boundary */
1450 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1451 BUS_SPACE_MAXADDR, /* highaddr */
1452 NULL, NULL, /* filter, filterarg */
1453 MAXBSIZE, /* maxsize */
1454 AAC_MAXSGENTRIES, /* nsegments */
1455 MAXBSIZE, /* maxsegsize */
1456 BUS_DMA_ALLOCNOW, /* flags */
1457 &sc->aac_buffer_dmat)) {
1458 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n");
1463 * Create DMA tag for mapping FIBs into controller-addressable space..
1465 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1466 1, 0, /* algnmnt, boundary */
1467 (sc->flags & AAC_FLAGS_4GB_WINDOW) ?
1468 BUS_SPACE_MAXADDR_32BIT :
1469 0x7fffffff, /* lowaddr */
1470 BUS_SPACE_MAXADDR, /* highaddr */
1471 NULL, NULL, /* filter, filterarg */
1473 sizeof(struct aac_fib), /* maxsize */
1476 sizeof(struct aac_fib), /* maxsegsize */
1477 BUS_DMA_ALLOCNOW, /* flags */
1478 &sc->aac_fib_dmat)) {
1479 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");
1484 * Create DMA tag for the common structure and allocate it.
1486 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1487 1, 0, /* algnmnt, boundary */
1488 (sc->flags & AAC_FLAGS_4GB_WINDOW) ?
1489 BUS_SPACE_MAXADDR_32BIT :
1490 0x7fffffff, /* lowaddr */
1491 BUS_SPACE_MAXADDR, /* highaddr */
1492 NULL, NULL, /* filter, filterarg */
1493 8192 + sizeof(struct aac_common), /* maxsize */
1495 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1496 BUS_DMA_ALLOCNOW, /* flags */
1497 &sc->aac_common_dmat)) {
1498 device_printf(sc->aac_dev,
1499 "can't allocate common structure DMA tag\n");
1502 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common,
1503 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) {
1504 device_printf(sc->aac_dev, "can't allocate common structure\n");
1508 * Work around a bug in the 2120 and 2200 that cannot DMA commands
1509 * below address 8192 in physical memory.
1510 * XXX If the padding is not needed, can it be put to use instead
1513 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap,
1514 sc->aac_common, 8192 + sizeof(*sc->aac_common),
1515 aac_common_map, sc, 0);
1517 if (sc->aac_common_busaddr < 8192) {
1519 (struct aac_common *)((uint8_t *)sc->aac_common + 8192);
1520 sc->aac_common_busaddr += 8192;
1522 bzero(sc->aac_common, sizeof(*sc->aac_common));
1524 /* Allocate some FIBs and associated command structs */
1525 if (aac_alloc_commands(sc) != 0)
1529 * Fill in the init structure. This tells the adapter about the
1530 * physical location of various important shared data structures.
1532 ip = &sc->aac_common->ac_init;
1533 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION;
1534 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION;
1536 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr +
1537 offsetof(struct aac_common, ac_fibs);
1538 ip->AdapterFibsVirtualAddress = (aac_phys_addr_t)&sc->aac_common->ac_fibs[0];
1539 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib);
1540 ip->AdapterFibAlign = sizeof(struct aac_fib);
1542 ip->PrintfBufferAddress = sc->aac_common_busaddr +
1543 offsetof(struct aac_common, ac_printf);
1544 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE;
1546 /* The adapter assumes that pages are 4K in size */
1547 /* XXX why should the adapter care? */
1548 ip->HostPhysMemPages = ctob((int)Maxmem) / AAC_PAGE_SIZE;
1549 ip->HostElapsedSeconds = time_second; /* reset later if invalid */
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.
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
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.
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));
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];
1625 * Do controller-type-specific initialisation
1627 switch (sc->aac_hwif) {
1628 case AAC_HWIF_I960RX:
1629 AAC_SETREG4(sc, AAC_RX_ODBR, ~0);
1634 * Give the init structure to the controller.
1636 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT,
1637 sc->aac_common_busaddr +
1638 offsetof(struct aac_common, ac_init), 0, 0, 0,
1640 device_printf(sc->aac_dev,
1641 "error establishing init structure\n");
1652 * Send a synchronous command to the controller and wait for a result.
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,
1664 /* populate the mailbox */
1665 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3);
1667 /* ensure the sync command doorbell flag is cleared */
1668 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
1670 /* then set it to signal the adapter */
1671 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND);
1673 /* spin waiting for the command to complete */
1676 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) {
1677 debug(1, "timed out");
1680 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND));
1682 /* clear the completion flag */
1683 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
1685 /* get the command status */
1686 status = AAC_GET_MAILBOX(sc, 0);
1693 * Grab the sync fib area.
1696 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags)
1700 * If the force flag is set, the system is shutting down, or in
1701 * trouble. Ignore the mutex.
1703 if (!(flags & AAC_SYNC_LOCK_FORCE))
1704 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock);
1706 *fib = &sc->aac_common->ac_sync_fib;
1712 * Release the sync fib area.
1715 aac_release_sync_fib(struct aac_softc *sc)
1718 AAC_LOCK_RELEASE(&sc->aac_sync_lock);
1722 * Send a synchronous FIB to the controller and wait for a result.
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)
1730 if (datasize > AAC_FIB_DATASIZE)
1734 * Set up the sync FIB
1736 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED |
1737 AAC_FIBSTATE_INITIALISED |
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,
1750 * Give the FIB to the controller, wait for a response.
1752 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB,
1753 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) {
1754 debug(2, "IO error");
1762 * Adapter-space FIB queue manipulation
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.
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}
1782 * Atomically insert an entry into the nominated queue, returns 0 on success or
1783 * EBUSY if the queue is full.
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).
1791 aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm)
1800 fib_size = cm->cm_fib->Header.Size;
1801 fib_addr = cm->cm_fib->Header.ReceiverFibAddress;
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];
1809 /* wrap the queue? */
1810 if (pi >= aac_qinfo[queue].size)
1813 /* check for queue full */
1814 if ((pi + 1) == ci) {
1819 * To avoid a race with its completion interrupt, place this command on
1820 * the busy queue prior to advertising it to the controller.
1822 aac_enqueue_busy(cm);
1826 /* populate queue entry */
1827 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size;
1828 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr;
1830 /* update producer index */
1831 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1;
1833 /* notify the adapter if we know how */
1834 if (aac_qinfo[queue].notify != 0)
1835 AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
1845 * Atomically remove one entry from the nominated queue, returns 0 on
1846 * success or ENOENT if the queue is empty.
1849 aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size,
1850 struct aac_fib **fib_addr)
1860 /* get the producer/consumer indices */
1861 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX];
1862 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX];
1864 /* check for queue empty */
1870 /* wrap the pi so the following test works */
1871 if (pi >= aac_qinfo[queue].size)
1878 /* wrap the queue? */
1879 if (ci >= aac_qinfo[queue].size)
1882 /* fetch the entry */
1883 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size;
1884 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] +
1888 * Is this a fast response? If it is, update the fib fields in
1889 * local memory so the whole fib doesn't have to be DMA'd back up.
1891 if (*(uintptr_t *)fib_addr & 0x01) {
1892 *(uintptr_t *)fib_addr &= ~0x01;
1893 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP;
1894 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL;
1896 /* update consumer index */
1897 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1;
1899 /* if we have made the queue un-full, notify the adapter */
1900 if (notify && (aac_qinfo[queue].notify != 0))
1901 AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
1910 * Put our response to an Adapter Initialed Fib on the response queue
1913 aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib)
1922 /* Tell the adapter where the FIB is */
1923 fib_size = fib->Header.Size;
1924 fib_addr = fib->Header.SenderFibAddress;
1925 fib->Header.ReceiverFibAddress = fib_addr;
1929 /* get the producer/consumer indices */
1930 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX];
1931 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX];
1933 /* wrap the queue? */
1934 if (pi >= aac_qinfo[queue].size)
1937 /* check for queue full */
1938 if ((pi + 1) == ci) {
1943 /* populate queue entry */
1944 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size;
1945 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr;
1947 /* update producer index */
1948 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1;
1950 /* notify the adapter if we know how */
1951 if (aac_qinfo[queue].notify != 0)
1952 AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
1962 * Check for commands that have been outstanding for a suspiciously long time,
1963 * and complain about them.
1966 aac_timeout(void *xsc)
1968 struct aac_softc *sc = xsc;
1969 struct aac_command *cm;
1973 /* simulate an interrupt to handle possibly-missed interrupts */
1975 * XXX This was done to work around another bug which has since been
1976 * fixed. It is dangerous anyways because you don't want multiple
1977 * threads in the interrupt handler at the same time! If calling
1978 * is deamed neccesary in the future, proper mutexes must be used.
1984 /* kick the I/O queue to restart it in the case of deadlock */
1989 * traverse the busy command list, bitch about late commands once
1993 deadline = time_second - AAC_CMD_TIMEOUT;
1995 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) {
1996 if ((cm->cm_timestamp < deadline)
1997 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) {
1998 cm->cm_flags |= AAC_CMD_TIMEDOUT;
1999 device_printf(sc->aac_dev,
2000 "COMMAND %p TIMEOUT AFTER %d SECONDS\n",
2001 cm, (int)(time_second-cm->cm_timestamp));
2002 AAC_PRINT_FIB(sc, cm->cm_fib);
2007 code = AAC_GET_FWSTATUS(sc);
2008 if (code != AAC_UP_AND_RUNNING) {
2009 device_printf(sc->aac_dev, "WARNING! Controller is no "
2010 "longer running! code= 0x%x\n", code);
2016 /* reset the timer for next time */
2017 callout_reset(&sc->aac_watchdog, AAC_PERIODIC_INTERVAL * hz,
2022 * Interface Function Vectors
2026 * Read the current firmware status word.
2029 aac_sa_get_fwstatus(struct aac_softc *sc)
2033 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS));
2037 aac_rx_get_fwstatus(struct aac_softc *sc)
2041 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS));
2045 aac_fa_get_fwstatus(struct aac_softc *sc)
2051 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS);
2056 * Notify the controller of a change in a given queue
2060 aac_sa_qnotify(struct aac_softc *sc, int qbit)
2064 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit);
2068 aac_rx_qnotify(struct aac_softc *sc, int qbit)
2072 AAC_SETREG4(sc, AAC_RX_IDBR, qbit);
2076 aac_fa_qnotify(struct aac_softc *sc, int qbit)
2080 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit);
2085 * Get the interrupt reason bits
2088 aac_sa_get_istatus(struct aac_softc *sc)
2092 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0));
2096 aac_rx_get_istatus(struct aac_softc *sc)
2100 return(AAC_GETREG4(sc, AAC_RX_ODBR));
2104 aac_fa_get_istatus(struct aac_softc *sc)
2110 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0);
2115 * Clear some interrupt reason bits
2118 aac_sa_clear_istatus(struct aac_softc *sc, int mask)
2122 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask);
2126 aac_rx_clear_istatus(struct aac_softc *sc, int mask)
2130 AAC_SETREG4(sc, AAC_RX_ODBR, mask);
2134 aac_fa_clear_istatus(struct aac_softc *sc, int mask)
2138 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask);
2143 * Populate the mailbox and set the command word
2146 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command,
2147 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2151 AAC_SETREG4(sc, AAC_SA_MAILBOX, command);
2152 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0);
2153 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1);
2154 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2);
2155 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3);
2159 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command,
2160 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2164 AAC_SETREG4(sc, AAC_RX_MAILBOX, command);
2165 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0);
2166 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1);
2167 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2);
2168 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3);
2172 aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command,
2173 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2177 AAC_SETREG4(sc, AAC_FA_MAILBOX, command);
2179 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0);
2181 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1);
2183 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2);
2185 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3);
2190 * Fetch the immediate command status word
2193 aac_sa_get_mailbox(struct aac_softc *sc, int mb)
2197 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4)));
2201 aac_rx_get_mailbox(struct aac_softc *sc, int mb)
2205 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4)));
2209 aac_fa_get_mailbox(struct aac_softc *sc, int mb)
2215 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4));
2220 * Set/clear interrupt masks
2223 aac_sa_set_interrupts(struct aac_softc *sc, int enable)
2225 debug(2, "%sable interrupts", enable ? "en" : "dis");
2228 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
2230 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0);
2235 aac_rx_set_interrupts(struct aac_softc *sc, int enable)
2237 debug(2, "%sable interrupts", enable ? "en" : "dis");
2240 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS);
2242 AAC_SETREG4(sc, AAC_RX_OIMR, ~0);
2247 aac_fa_set_interrupts(struct aac_softc *sc, int enable)
2249 debug(2, "%sable interrupts", enable ? "en" : "dis");
2252 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
2255 AAC_SETREG2((sc), AAC_FA_MASK0, ~0);
2261 * Debugging and Diagnostics
2265 * Print some information about the controller.
2268 aac_describe_controller(struct aac_softc *sc)
2270 struct aac_fib *fib;
2271 struct aac_adapter_info *info;
2275 aac_alloc_sync_fib(sc, &fib, 0);
2278 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) {
2279 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n");
2280 aac_release_sync_fib(sc);
2283 info = (struct aac_adapter_info *)&fib->data[0];
2285 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n",
2286 aac_describe_code(aac_cpu_variant, info->CpuVariant),
2287 info->ClockSpeed, info->BufferMem / (1024 * 1024),
2288 aac_describe_code(aac_battery_platform,
2289 info->batteryPlatform));
2291 /* save the kernel revision structure for later use */
2292 sc->aac_revision = info->KernelRevision;
2293 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n",
2294 info->KernelRevision.external.comp.major,
2295 info->KernelRevision.external.comp.minor,
2296 info->KernelRevision.external.comp.dash,
2297 info->KernelRevision.buildNumber,
2298 (u_int32_t)(info->SerialNumber & 0xffffff));
2300 aac_release_sync_fib(sc);
2302 if (1 || bootverbose) {
2303 device_printf(sc->aac_dev, "Supported Options=%b\n",
2304 sc->supported_options,
2323 * Look up a text description of a numeric error code and return a pointer to
2327 aac_describe_code(struct aac_code_lookup *table, u_int32_t code)
2331 for (i = 0; table[i].string != NULL; i++)
2332 if (table[i].code == code)
2333 return(table[i].string);
2334 return(table[i + 1].string);
2338 * Management Interface
2342 aac_open(struct dev_open_args *ap)
2344 cdev_t dev = ap->a_head.a_dev;
2345 struct aac_softc *sc;
2351 /* Check to make sure the device isn't already open */
2352 if (sc->aac_state & AAC_STATE_OPEN) {
2355 sc->aac_state |= AAC_STATE_OPEN;
2361 aac_close(struct dev_close_args *ap)
2363 cdev_t dev = ap->a_head.a_dev;
2364 struct aac_softc *sc;
2370 /* Mark this unit as no longer open */
2371 sc->aac_state &= ~AAC_STATE_OPEN;
2377 aac_ioctl(struct dev_ioctl_args *ap)
2379 cdev_t dev = ap->a_head.a_dev;
2380 caddr_t arg = ap->a_data;
2381 struct aac_softc *sc = dev->si_drv1;
2387 if (ap->a_cmd == AACIO_STATS) {
2388 union aac_statrequest *as = (union aac_statrequest *)arg;
2390 switch (as->as_item) {
2396 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat,
2397 sizeof(struct aac_qstat));
2406 arg = *(caddr_t *)arg;
2408 switch (ap->a_cmd) {
2409 /* AACIO_STATS already handled above */
2410 case FSACTL_SENDFIB:
2411 debug(1, "FSACTL_SENDFIB");
2412 error = aac_ioctl_sendfib(sc, arg);
2414 case FSACTL_AIF_THREAD:
2415 debug(1, "FSACTL_AIF_THREAD");
2418 case FSACTL_OPEN_GET_ADAPTER_FIB:
2419 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB");
2421 * Pass the caller out an AdapterFibContext.
2423 * Note that because we only support one opener, we
2424 * basically ignore this. Set the caller's context to a magic
2425 * number just in case.
2427 * The Linux code hands the driver a pointer into kernel space,
2428 * and then trusts it when the caller hands it back. Aiee!
2429 * Here, we give it the proc pointer of the per-adapter aif
2430 * thread. It's only used as a sanity check in other calls.
2432 i = (int)sc->aifthread;
2433 error = copyout(&i, arg, sizeof(i));
2435 case FSACTL_GET_NEXT_ADAPTER_FIB:
2436 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB");
2437 error = aac_getnext_aif(sc, arg);
2439 case FSACTL_CLOSE_GET_ADAPTER_FIB:
2440 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB");
2441 /* don't do anything here */
2443 case FSACTL_MINIPORT_REV_CHECK:
2444 debug(1, "FSACTL_MINIPORT_REV_CHECK");
2445 error = aac_rev_check(sc, arg);
2447 case FSACTL_QUERY_DISK:
2448 debug(1, "FSACTL_QUERY_DISK");
2449 error = aac_query_disk(sc, arg);
2451 case FSACTL_DELETE_DISK:
2453 * We don't trust the underland to tell us when to delete a
2454 * container, rather we rely on an AIF coming from the
2460 debug(1, "unsupported cmd 0x%lx\n", ap->a_cmd);
2468 aac_poll(struct dev_poll_args *ap)
2470 cdev_t dev = ap->a_head.a_dev;
2471 struct aac_softc *sc;
2477 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2478 if ((ap->a_events & (POLLRDNORM | POLLIN)) != 0) {
2479 if (sc->aac_aifq_tail != sc->aac_aifq_head)
2480 revents |= ap->a_events & (POLLIN | POLLRDNORM);
2482 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2485 if (ap->a_events & (POLLIN | POLLRDNORM))
2486 selrecord(curthread, &sc->rcv_select);
2488 ap->a_events = revents;
2493 * Send a FIB supplied from userspace
2496 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib)
2498 struct aac_command *cm;
2508 if (aac_alloc_command(sc, &cm)) {
2514 * Fetch the FIB header, then re-copy to get data as well.
2516 if ((error = copyin(ufib, cm->cm_fib,
2517 sizeof(struct aac_fib_header))) != 0)
2519 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header);
2520 if (size > sizeof(struct aac_fib)) {
2521 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n",
2522 size, sizeof(struct aac_fib));
2523 size = sizeof(struct aac_fib);
2525 if ((error = copyin(ufib, cm->cm_fib, size)) != 0)
2527 cm->cm_fib->Header.Size = size;
2528 cm->cm_timestamp = time_second;
2531 * Pass the FIB to the controller, wait for it to complete.
2533 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */
2534 kprintf("aac_wait_command return %d\n", error);
2539 * Copy the FIB and data back out to the caller.
2541 size = cm->cm_fib->Header.Size;
2542 if (size > sizeof(struct aac_fib)) {
2543 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n",
2544 size, sizeof(struct aac_fib));
2545 size = sizeof(struct aac_fib);
2547 error = copyout(cm->cm_fib, ufib, size);
2551 aac_release_command(cm);
2557 * Handle an AIF sent to us by the controller; queue it for later reference.
2558 * If the queue fills up, then drop the older entries.
2561 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib)
2563 struct aac_aif_command *aif;
2564 struct aac_container *co, *co_next;
2565 struct aac_mntinfo *mi;
2566 struct aac_mntinforesp *mir = NULL;
2569 int count = 0, added = 0, i = 0;
2573 aif = (struct aac_aif_command*)&fib->data[0];
2574 aac_print_aif(sc, aif);
2576 /* Is it an event that we should care about? */
2577 switch (aif->command) {
2578 case AifCmdEventNotify:
2579 switch (aif->data.EN.type) {
2580 case AifEnAddContainer:
2581 case AifEnDeleteContainer:
2583 * A container was added or deleted, but the message
2584 * doesn't tell us anything else! Re-enumerate the
2585 * containers and sort things out.
2587 aac_alloc_sync_fib(sc, &fib, 0);
2588 mi = (struct aac_mntinfo *)&fib->data[0];
2591 * Ask the controller for its containers one at
2593 * XXX What if the controller's list changes
2594 * midway through this enumaration?
2595 * XXX This should be done async.
2597 bzero(mi, sizeof(struct aac_mntinfo));
2598 mi->Command = VM_NameServe;
2599 mi->MntType = FT_FILESYS;
2601 rsize = sizeof(mir);
2602 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
2603 sizeof(struct aac_mntinfo))) {
2604 device_printf(sc->aac_dev,
2605 "Error probing container %d\n", i);
2609 mir = (struct aac_mntinforesp *)&fib->data[0];
2610 /* XXX Need to check if count changed */
2611 count = mir->MntRespCount;
2614 * Check the container against our list.
2615 * co->co_found was already set to 0 in a
2618 if ((mir->Status == ST_OK) &&
2619 (mir->MntTable[0].VolType != CT_NONE)) {
2622 &sc->aac_container_tqh,
2624 if (co->co_mntobj.ObjectId ==
2625 mir->MntTable[0].ObjectId) {
2632 * If the container matched, continue
2641 * This is a new container. Do all the
2642 * appropriate things to set it up. */
2643 aac_add_container(sc, mir, 1);
2647 } while ((i < count) && (i < AAC_MAX_CONTAINERS));
2648 aac_release_sync_fib(sc);
2651 * Go through our list of containers and see which ones
2652 * were not marked 'found'. Since the controller didn't
2653 * list them they must have been deleted. Do the
2654 * appropriate steps to destroy the device. Also reset
2655 * the co->co_found field.
2657 co = TAILQ_FIRST(&sc->aac_container_tqh);
2658 while (co != NULL) {
2659 if (co->co_found == 0) {
2660 device_delete_child(sc->aac_dev,
2662 co_next = TAILQ_NEXT(co, co_link);
2663 AAC_LOCK_ACQUIRE(&sc->
2664 aac_container_lock);
2665 TAILQ_REMOVE(&sc->aac_container_tqh, co,
2667 AAC_LOCK_RELEASE(&sc->
2668 aac_container_lock);
2673 co = TAILQ_NEXT(co, co_link);
2677 /* Attach the newly created containers */
2679 bus_generic_attach(sc->aac_dev);
2691 /* Copy the AIF data to the AIF queue for ioctl retrieval */
2692 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2693 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH;
2694 if (next != sc->aac_aifq_tail) {
2695 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command));
2696 sc->aac_aifq_head = next;
2698 /* On the off chance that someone is sleeping for an aif... */
2699 if (sc->aac_state & AAC_STATE_AIF_SLEEPER)
2700 wakeup(sc->aac_aifq);
2701 /* token may have been lost */
2702 /* Wakeup any poll()ers */
2703 selwakeup(&sc->rcv_select);
2704 /* token may have been lost */
2706 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2712 * Return the Revision of the driver to userspace and check to see if the
2713 * userspace app is possibly compatible. This is extremely bogus since
2714 * our driver doesn't follow Adaptec's versioning system. Cheat by just
2715 * returning what the card reported.
2718 aac_rev_check(struct aac_softc *sc, caddr_t udata)
2720 struct aac_rev_check rev_check;
2721 struct aac_rev_check_resp rev_check_resp;
2727 * Copyin the revision struct from userspace
2729 if ((error = copyin(udata, (caddr_t)&rev_check,
2730 sizeof(struct aac_rev_check))) != 0) {
2734 debug(2, "Userland revision= %d\n",
2735 rev_check.callingRevision.buildNumber);
2738 * Doctor up the response struct.
2740 rev_check_resp.possiblyCompatible = 1;
2741 rev_check_resp.adapterSWRevision.external.ul =
2742 sc->aac_revision.external.ul;
2743 rev_check_resp.adapterSWRevision.buildNumber =
2744 sc->aac_revision.buildNumber;
2746 return(copyout((caddr_t)&rev_check_resp, udata,
2747 sizeof(struct aac_rev_check_resp)));
2751 * Pass the caller the next AIF in their queue
2754 aac_getnext_aif(struct aac_softc *sc, caddr_t arg)
2756 struct get_adapter_fib_ioctl agf;
2761 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) {
2764 * Check the magic number that we gave the caller.
2766 if (agf.AdapterFibContext != (int)sc->aifthread) {
2771 error = aac_return_aif(sc, agf.AifFib);
2773 if ((error == EAGAIN) && (agf.Wait)) {
2774 sc->aac_state |= AAC_STATE_AIF_SLEEPER;
2775 while (error == EAGAIN) {
2776 error = tsleep(sc->aac_aifq,
2777 PCATCH, "aacaif", 0);
2779 error = aac_return_aif(sc,
2782 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER;
2791 * Hand the next AIF off the top of the queue out to userspace.
2793 * YYY token could be lost during copyout
2796 aac_return_aif(struct aac_softc *sc, caddr_t uptr)
2802 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2803 if (sc->aac_aifq_tail == sc->aac_aifq_head) {
2806 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr,
2807 sizeof(struct aac_aif_command));
2809 kprintf("aac_return_aif: copyout returned %d\n", error);
2811 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) %
2814 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2819 * Give the userland some information about the container. The AAC arch
2820 * expects the driver to be a SCSI passthrough type driver, so it expects
2821 * the containers to have b:t:l numbers. Fake it.
2824 aac_query_disk(struct aac_softc *sc, caddr_t uptr)
2826 struct aac_query_disk query_disk;
2827 struct aac_container *co;
2828 struct aac_disk *disk;
2835 error = copyin(uptr, (caddr_t)&query_disk,
2836 sizeof(struct aac_query_disk));
2840 id = query_disk.ContainerNumber;
2844 AAC_LOCK_ACQUIRE(&sc->aac_container_lock);
2845 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) {
2846 if (co->co_mntobj.ObjectId == id)
2851 query_disk.Valid = 0;
2852 query_disk.Locked = 0;
2853 query_disk.Deleted = 1; /* XXX is this right? */
2855 disk = device_get_softc(co->co_disk);
2856 query_disk.Valid = 1;
2858 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0;
2859 query_disk.Deleted = 0;
2860 query_disk.Bus = device_get_unit(sc->aac_dev);
2861 query_disk.Target = disk->unit;
2863 query_disk.UnMapped = 0;
2864 bcopy(disk->ad_dev_t->si_name,
2865 &query_disk.diskDeviceName[0], 10);
2867 AAC_LOCK_RELEASE(&sc->aac_container_lock);
2869 error = copyout((caddr_t)&query_disk, uptr,
2870 sizeof(struct aac_query_disk));
2876 aac_get_bus_info(struct aac_softc *sc)
2878 struct aac_fib *fib;
2879 struct aac_ctcfg *c_cmd;
2880 struct aac_ctcfg_resp *c_resp;
2881 struct aac_vmioctl *vmi;
2882 struct aac_vmi_businf_resp *vmi_resp;
2883 struct aac_getbusinf businfo;
2884 struct aac_cam_inf *caminf;
2886 int i, found, error;
2888 aac_alloc_sync_fib(sc, &fib, 0);
2889 c_cmd = (struct aac_ctcfg *)&fib->data[0];
2890 bzero(c_cmd, sizeof(struct aac_ctcfg));
2892 c_cmd->Command = VM_ContainerConfig;
2893 c_cmd->cmd = CT_GET_SCSI_METHOD;
2896 error = aac_sync_fib(sc, ContainerCommand, 0, fib,
2897 sizeof(struct aac_ctcfg));
2899 device_printf(sc->aac_dev, "Error %d sending "
2900 "VM_ContainerConfig command\n", error);
2901 aac_release_sync_fib(sc);
2905 c_resp = (struct aac_ctcfg_resp *)&fib->data[0];
2906 if (c_resp->Status != ST_OK) {
2907 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n",
2909 aac_release_sync_fib(sc);
2913 sc->scsi_method_id = c_resp->param;
2915 vmi = (struct aac_vmioctl *)&fib->data[0];
2916 bzero(vmi, sizeof(struct aac_vmioctl));
2918 vmi->Command = VM_Ioctl;
2919 vmi->ObjType = FT_DRIVE;
2920 vmi->MethId = sc->scsi_method_id;
2922 vmi->IoctlCmd = GetBusInfo;
2924 error = aac_sync_fib(sc, ContainerCommand, 0, fib,
2925 sizeof(struct aac_vmioctl));
2927 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n",
2929 aac_release_sync_fib(sc);
2933 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0];
2934 if (vmi_resp->Status != ST_OK) {
2935 debug(1, "VM_Ioctl returned %d\n", vmi_resp->Status);
2936 aac_release_sync_fib(sc);
2940 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf));
2941 aac_release_sync_fib(sc);
2944 for (i = 0; i < businfo.BusCount; i++) {
2945 if (businfo.BusValid[i] != AAC_BUS_VALID)
2948 MALLOC(caminf, struct aac_cam_inf *,
2949 sizeof(struct aac_cam_inf), M_AACBUF, M_INTWAIT | M_ZERO);
2951 child = device_add_child(sc->aac_dev, "aacp", -1);
2952 if (child == NULL) {
2953 device_printf(sc->aac_dev, "device_add_child failed\n");
2957 caminf->TargetsPerBus = businfo.TargetsPerBus;
2958 caminf->BusNumber = i;
2959 caminf->InitiatorBusId = businfo.InitiatorBusId[i];
2960 caminf->aac_sc = sc;
2962 device_set_ivars(child, caminf);
2963 device_set_desc(child, "SCSI Passthrough Bus");
2969 bus_generic_attach(sc->aac_dev);