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 1.28 2006/12/22 23:26:23 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);
74 /* Command Processing */
75 static void aac_timeout(void *ssc);
76 static int aac_start(struct aac_command *cm);
77 static void aac_complete(void *context, int pending);
78 static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp);
79 static void aac_bio_complete(struct aac_command *cm);
80 static int aac_wait_command(struct aac_command *cm, int timeout);
81 static void aac_host_command(struct aac_softc *sc);
82 static void aac_host_response(struct aac_softc *sc);
84 /* Command Buffer Management */
85 static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs,
87 static int aac_alloc_commands(struct aac_softc *sc);
88 static void aac_free_commands(struct aac_softc *sc);
89 static void aac_map_command(struct aac_command *cm);
90 static void aac_unmap_command(struct aac_command *cm);
92 /* Hardware Interface */
93 static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg,
95 static int aac_check_firmware(struct aac_softc *sc);
96 static int aac_init(struct aac_softc *sc);
97 static int aac_sync_command(struct aac_softc *sc, u_int32_t command,
98 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
99 u_int32_t arg3, u_int32_t *sp);
100 static int aac_enqueue_fib(struct aac_softc *sc, int queue,
101 struct aac_command *cm);
102 static int aac_dequeue_fib(struct aac_softc *sc, int queue,
103 u_int32_t *fib_size, struct aac_fib **fib_addr);
104 static int aac_enqueue_response(struct aac_softc *sc, int queue,
105 struct aac_fib *fib);
107 /* Falcon/PPC interface */
108 static int aac_fa_get_fwstatus(struct aac_softc *sc);
109 static void aac_fa_qnotify(struct aac_softc *sc, int qbit);
110 static int aac_fa_get_istatus(struct aac_softc *sc);
111 static void aac_fa_clear_istatus(struct aac_softc *sc, int mask);
112 static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command,
113 u_int32_t arg0, u_int32_t arg1,
114 u_int32_t arg2, u_int32_t arg3);
115 static int aac_fa_get_mailbox(struct aac_softc *sc, int mb);
116 static void aac_fa_set_interrupts(struct aac_softc *sc, int enable);
118 struct aac_interface aac_fa_interface = {
122 aac_fa_clear_istatus,
125 aac_fa_set_interrupts
128 /* StrongARM interface */
129 static int aac_sa_get_fwstatus(struct aac_softc *sc);
130 static void aac_sa_qnotify(struct aac_softc *sc, int qbit);
131 static int aac_sa_get_istatus(struct aac_softc *sc);
132 static void aac_sa_clear_istatus(struct aac_softc *sc, int mask);
133 static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command,
134 u_int32_t arg0, u_int32_t arg1,
135 u_int32_t arg2, u_int32_t arg3);
136 static int aac_sa_get_mailbox(struct aac_softc *sc, int mb);
137 static void aac_sa_set_interrupts(struct aac_softc *sc, int enable);
139 struct aac_interface aac_sa_interface = {
143 aac_sa_clear_istatus,
146 aac_sa_set_interrupts
149 /* i960Rx interface */
150 static int aac_rx_get_fwstatus(struct aac_softc *sc);
151 static void aac_rx_qnotify(struct aac_softc *sc, int qbit);
152 static int aac_rx_get_istatus(struct aac_softc *sc);
153 static void aac_rx_clear_istatus(struct aac_softc *sc, int mask);
154 static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command,
155 u_int32_t arg0, u_int32_t arg1,
156 u_int32_t arg2, u_int32_t arg3);
157 static int aac_rx_get_mailbox(struct aac_softc *sc, int mb);
158 static void aac_rx_set_interrupts(struct aac_softc *sc, int enable);
160 struct aac_interface aac_rx_interface = {
164 aac_rx_clear_istatus,
167 aac_rx_set_interrupts
170 /* Debugging and Diagnostics */
171 static void aac_describe_controller(struct aac_softc *sc);
172 static char *aac_describe_code(struct aac_code_lookup *table,
175 /* Management Interface */
176 static d_open_t aac_open;
177 static d_close_t aac_close;
178 static d_ioctl_t aac_ioctl;
179 static d_poll_t aac_poll;
180 static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib);
181 static void aac_handle_aif(struct aac_softc *sc,
182 struct aac_fib *fib);
183 static int aac_rev_check(struct aac_softc *sc, caddr_t udata);
184 static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg);
185 static int aac_return_aif(struct aac_softc *sc, caddr_t uptr);
186 static int aac_query_disk(struct aac_softc *sc, caddr_t uptr);
188 #define AAC_CDEV_MAJOR 150
190 static struct dev_ops aac_ops = {
191 { "aac", AAC_CDEV_MAJOR, 0 },
193 .d_close = aac_close,
194 .d_ioctl = aac_ioctl,
198 DECLARE_DUMMY_MODULE(aac);
200 MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver");
203 SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters");
210 * Initialise the controller and softc
213 aac_attach(struct aac_softc *sc)
218 callout_init(&sc->aac_watchdog);
221 * Initialise per-controller queues.
226 aac_initq_complete(sc);
229 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
231 * Initialise command-completion task.
233 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc);
236 /* disable interrupts before we enable anything */
237 AAC_MASK_INTERRUPTS(sc);
239 /* mark controller as suspended until we get ourselves organised */
240 sc->aac_state |= AAC_STATE_SUSPEND;
243 * Check that the firmware on the card is supported.
245 if ((error = aac_check_firmware(sc)) != 0)
248 /* Init the sync fib lock */
249 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock");
252 * Initialise the adapter.
254 if ((error = aac_init(sc)) != 0)
258 * Print a little information about the controller.
260 aac_describe_controller(sc);
263 * Register to probe our containers later.
265 TAILQ_INIT(&sc->aac_container_tqh);
266 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock");
269 * Lock for the AIF queue
271 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock");
273 sc->aac_ich.ich_func = aac_startup;
274 sc->aac_ich.ich_arg = sc;
275 sc->aac_ich.ich_desc = "aac";
276 if (config_intrhook_establish(&sc->aac_ich) != 0) {
277 device_printf(sc->aac_dev,
278 "can't establish configuration hook\n");
283 * Make the control device.
285 unit = device_get_unit(sc->aac_dev);
286 dev_ops_add(&aac_ops, -1, unit);
287 sc->aac_dev_t = make_dev(&aac_ops, unit, UID_ROOT, GID_WHEEL, 0644,
289 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
290 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit);
291 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit);
293 sc->aac_dev_t->si_drv1 = sc;
294 reference_dev(sc->aac_dev_t);
296 /* Create the AIF thread */
297 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
298 if (kthread_create((void(*)(void *))aac_host_command, sc,
299 &sc->aifthread, 0, "aac%daif", unit))
301 if (kthread_create((void(*)(void *))aac_host_command, sc,
302 &sc->aifthread, "aac%daif", unit))
304 panic("Could not create AIF thread\n");
306 /* Register the shutdown method to only be called post-dump */
307 if ((EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, sc->aac_dev,
308 SHUTDOWN_PRI_DEFAULT)) == NULL)
309 device_printf(sc->aac_dev, "shutdown event registration failed\n");
311 /* Register with CAM for the non-DASD devices */
312 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0)
313 aac_get_bus_info(sc);
319 * Probe for containers, create disks.
322 aac_startup(void *arg)
324 struct aac_softc *sc;
326 struct aac_mntinfo *mi;
327 struct aac_mntinforesp *mir = NULL;
328 int count = 0, i = 0;
332 sc = (struct aac_softc *)arg;
334 /* disconnect ourselves from the intrhook chain */
335 config_intrhook_disestablish(&sc->aac_ich);
337 aac_alloc_sync_fib(sc, &fib, 0);
338 mi = (struct aac_mntinfo *)&fib->data[0];
340 /* loop over possible containers */
342 /* request information on this container */
343 bzero(mi, sizeof(struct aac_mntinfo));
344 mi->Command = VM_NameServe;
345 mi->MntType = FT_FILESYS;
347 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
348 sizeof(struct aac_mntinfo))) {
349 device_printf(sc->aac_dev,
350 "error probing container %d", i);
355 mir = (struct aac_mntinforesp *)&fib->data[0];
356 /* XXX Need to check if count changed */
357 count = mir->MntRespCount;
358 aac_add_container(sc, mir, 0);
360 } while ((i < count) && (i < AAC_MAX_CONTAINERS));
362 aac_release_sync_fib(sc);
364 /* poke the bus to actually attach the child devices */
365 if (bus_generic_attach(sc->aac_dev))
366 device_printf(sc->aac_dev, "bus_generic_attach failed\n");
368 /* mark the controller up */
369 sc->aac_state &= ~AAC_STATE_SUSPEND;
371 /* enable interrupts now */
372 AAC_UNMASK_INTERRUPTS(sc);
374 /* enable the timeout watchdog */
375 callout_reset(&sc->aac_watchdog, AAC_PERIODIC_INTERVAL * hz,
380 * Create a device to respresent a new container
383 aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f)
385 struct aac_container *co;
389 * Check container volume type for validity. Note that many of
390 * the possible types may never show up.
392 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) {
393 MALLOC(co, struct aac_container *, sizeof *co, M_AACBUF,
395 debug(1, "id %x name '%.16s' size %u type %d",
396 mir->MntTable[0].ObjectId,
397 mir->MntTable[0].FileSystemName,
398 mir->MntTable[0].Capacity, mir->MntTable[0].VolType);
400 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL)
401 device_printf(sc->aac_dev, "device_add_child failed\n");
403 device_set_ivars(child, co);
404 device_set_desc(child, aac_describe_code(aac_container_types,
405 mir->MntTable[0].VolType));
408 bcopy(&mir->MntTable[0], &co->co_mntobj,
409 sizeof(struct aac_mntobj));
410 AAC_LOCK_ACQUIRE(&sc->aac_container_lock);
411 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link);
412 AAC_LOCK_RELEASE(&sc->aac_container_lock);
417 * Free all of the resources associated with (sc)
419 * Should not be called if the controller is active.
422 aac_free(struct aac_softc *sc)
426 /* remove the control device */
427 if (sc->aac_dev_t != NULL)
428 destroy_dev(sc->aac_dev_t);
430 /* throw away any FIB buffers, discard the FIB DMA tag */
431 if (sc->aac_fibs != NULL)
432 aac_free_commands(sc);
433 if (sc->aac_fib_dmat)
434 bus_dma_tag_destroy(sc->aac_fib_dmat);
436 /* destroy the common area */
437 if (sc->aac_common) {
438 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap);
439 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common,
440 sc->aac_common_dmamap);
442 if (sc->aac_common_dmat)
443 bus_dma_tag_destroy(sc->aac_common_dmat);
445 /* disconnect the interrupt handler */
447 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr);
448 if (sc->aac_irq != NULL)
449 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid,
452 /* destroy data-transfer DMA tag */
453 if (sc->aac_buffer_dmat)
454 bus_dma_tag_destroy(sc->aac_buffer_dmat);
456 /* destroy the parent DMA tag */
457 if (sc->aac_parent_dmat)
458 bus_dma_tag_destroy(sc->aac_parent_dmat);
460 /* release the register window mapping */
461 if (sc->aac_regs_resource != NULL) {
462 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY,
463 sc->aac_regs_rid, sc->aac_regs_resource);
465 dev_ops_remove(&aac_ops, -1, device_get_unit(sc->aac_dev));
469 * Disconnect from the controller completely, in preparation for unload.
472 aac_detach(device_t dev)
474 struct aac_softc *sc;
481 sc = device_get_softc(dev);
483 callout_stop(&sc->aac_watchdog);
485 if (sc->aac_state & AAC_STATE_OPEN)
489 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) {
490 sc->aifflags |= AAC_AIFFLAGS_EXIT;
491 wakeup(sc->aifthread);
492 tsleep(sc->aac_dev, PCATCH, "aacdch", 30 * hz);
495 if (sc->aifflags & AAC_AIFFLAGS_RUNNING)
496 panic("Cannot shutdown AIF thread\n");
498 if ((error = aac_shutdown(dev)))
510 * Bring the controller down to a dormant state and detach all child devices.
512 * This function is called before detach or system shutdown.
514 * Note that we can assume that the bioq on the controller is empty, as we won't
515 * allow shutdown if any device is open.
518 aac_shutdown(device_t dev)
520 struct aac_softc *sc;
522 struct aac_close_command *cc;
526 sc = device_get_softc(dev);
530 sc->aac_state |= AAC_STATE_SUSPEND;
533 * Send a Container shutdown followed by a HostShutdown FIB to the
534 * controller to convince it that we don't want to talk to it anymore.
535 * We've been closed and all I/O completed already
537 device_printf(sc->aac_dev, "shutting down controller...");
539 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE);
540 cc = (struct aac_close_command *)&fib->data[0];
542 bzero(cc, sizeof(struct aac_close_command));
543 cc->Command = VM_CloseAll;
544 cc->ContainerId = 0xffffffff;
545 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
546 sizeof(struct aac_close_command)))
547 kprintf("FAILED.\n");
551 * XXX Issuing this command to the controller makes it shut down
552 * but also keeps it from coming back up without a reset of the
553 * PCI bus. This is not desirable if you are just unloading the
554 * driver module with the intent to reload it later.
556 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN,
558 kprintf("FAILED.\n");
564 AAC_MASK_INTERRUPTS(sc);
571 * Bring the controller to a quiescent state, ready for system suspend.
574 aac_suspend(device_t dev)
576 struct aac_softc *sc;
580 sc = device_get_softc(dev);
584 sc->aac_state |= AAC_STATE_SUSPEND;
586 AAC_MASK_INTERRUPTS(sc);
592 * Bring the controller back to a state ready for operation.
595 aac_resume(device_t dev)
597 struct aac_softc *sc;
601 sc = device_get_softc(dev);
603 sc->aac_state &= ~AAC_STATE_SUSPEND;
604 AAC_UNMASK_INTERRUPTS(sc);
614 struct aac_softc *sc;
616 u_int32_t *resp_queue;
620 sc = (struct aac_softc *)arg;
623 * Optimize the common case of adapter response interrupts.
624 * We must read from the card prior to processing the responses
625 * to ensure the clear is flushed prior to accessing the queues.
626 * Reading the queues from local memory might save us a PCI read.
628 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE];
629 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX])
630 reason = AAC_DB_RESPONSE_READY;
632 reason = AAC_GET_ISTATUS(sc);
633 AAC_CLEAR_ISTATUS(sc, reason);
634 (void)AAC_GET_ISTATUS(sc);
636 /* It's not ok to return here because of races with the previous step */
637 if (reason & AAC_DB_RESPONSE_READY)
638 aac_host_response(sc);
640 /* controller wants to talk to the log */
641 if (reason & AAC_DB_PRINTF)
642 aac_print_printf(sc);
644 /* controller has a message for us? */
645 if (reason & AAC_DB_COMMAND_READY) {
646 /* XXX What happens if the thread is already awake? */
647 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) {
648 sc->aifflags |= AAC_AIFFLAGS_PENDING;
649 wakeup(sc->aifthread);
659 * Start as much queued I/O as possible on the controller
662 aac_startio(struct aac_softc *sc)
664 struct aac_command *cm;
670 * Try to get a command that's been put off for lack of
673 cm = aac_dequeue_ready(sc);
676 * Try to build a command off the bio queue (ignore error
680 aac_bio_command(sc, &cm);
686 /* try to give the command to the controller */
687 if (aac_start(cm) == EBUSY) {
688 /* put it on the ready queue for later */
689 aac_requeue_ready(cm);
696 * Deliver a command to the controller; allocate controller resources at the
697 * last moment when possible.
700 aac_start(struct aac_command *cm)
702 struct aac_softc *sc;
709 /* get the command mapped */
712 /* fix up the address values in the FIB */
713 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
714 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys;
716 /* save a pointer to the command for speedy reverse-lookup */
717 cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical
719 /* put the FIB on the outbound queue */
720 error = aac_enqueue_fib(sc, cm->cm_queue, cm);
725 * Handle notification of one or more FIBs coming from the controller.
728 aac_host_command(struct aac_softc *sc)
736 sc->aifflags |= AAC_AIFFLAGS_RUNNING;
738 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) {
739 if (!(sc->aifflags & AAC_AIFFLAGS_PENDING))
740 tsleep(sc->aifthread, 0, "aifthd", 15 * hz);
742 sc->aifflags &= ~AAC_AIFFLAGS_PENDING;
744 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE,
746 break; /* nothing to do */
748 AAC_PRINT_FIB(sc, fib);
750 switch (fib->Header.Command) {
752 aac_handle_aif(sc, fib);
755 device_printf(sc->aac_dev, "unknown command "
756 "from controller\n");
760 /* Return the AIF to the controller. */
761 if ((fib->Header.XferState == 0) ||
762 (fib->Header.StructType != AAC_FIBTYPE_TFIB))
765 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) {
766 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST;
767 *(AAC_FSAStatus*)fib->data = ST_OK;
769 /* XXX Compute the Size field? */
770 size = fib->Header.Size;
771 if (size > sizeof(struct aac_fib)) {
772 size = sizeof(struct aac_fib);
773 fib->Header.Size = size;
776 * Since we did not generate this command, it
777 * cannot go through the normal
778 * enqueue->startio chain.
780 aac_enqueue_response(sc,
781 AAC_ADAP_NORM_RESP_QUEUE,
786 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING;
789 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
796 * Handle notification of one or more FIBs completed by the controller
799 aac_host_response(struct aac_softc *sc)
801 struct aac_command *cm;
808 /* look for completed FIBs on our queue */
809 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size,
811 break; /* nothing to do */
813 /* get the command, unmap and queue for later processing */
814 cm = (struct aac_command *)fib->Header.SenderData;
816 AAC_PRINT_FIB(sc, fib);
819 aac_unmap_command(cm); /* XXX defer? */
820 aac_enqueue_complete(cm);
824 /* handle completion processing */
825 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
826 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete);
833 * Process completed commands.
836 aac_complete(void *context, int pending)
838 struct aac_softc *sc;
839 struct aac_command *cm;
843 sc = (struct aac_softc *)context;
845 /* pull completed commands off the queue */
847 cm = aac_dequeue_complete(sc);
850 cm->cm_flags |= AAC_CMD_COMPLETED;
852 /* is there a completion handler? */
853 if (cm->cm_complete != NULL) {
856 /* assume that someone is sleeping on this command */
861 /* see if we can start some more I/O */
866 * Handle a bio submitted from a disk device.
869 aac_submit_bio(struct aac_disk *ad, struct bio *bio)
871 struct aac_softc *sc;
875 bio->bio_driver_info = ad;
876 sc = ad->ad_controller;
878 /* queue the BIO and try to get some work done */
879 aac_enqueue_bio(sc, bio);
884 * Get a bio and build a command to go with it.
887 aac_bio_command(struct aac_softc *sc, struct aac_command **cmp)
889 struct aac_command *cm;
891 struct aac_blockread *br;
892 struct aac_blockwrite *bw;
899 /* get the resources we will need */
901 if ((bio = aac_dequeue_bio(sc)) == NULL)
903 if (aac_alloc_command(sc, &cm)) /* get a command */
906 /* fill out the command */
908 cm->cm_data = (void *)bp->b_data;
909 cm->cm_datalen = bp->b_bcount;
910 cm->cm_complete = aac_bio_complete;
911 cm->cm_private = bio;
912 cm->cm_timestamp = time_second;
913 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
917 fib->Header.XferState =
918 AAC_FIBSTATE_HOSTOWNED |
919 AAC_FIBSTATE_INITIALISED |
921 AAC_FIBSTATE_FROMHOST |
922 AAC_FIBSTATE_REXPECTED |
925 AAC_FIBSTATE_FAST_RESPONSE;
926 fib->Header.Command = ContainerCommand;
927 fib->Header.Size = sizeof(struct aac_fib_header);
929 /* build the read/write request */
930 ad = (struct aac_disk *)bio->bio_driver_info;
931 if (bp->b_cmd == BUF_CMD_READ) {
932 br = (struct aac_blockread *)&fib->data[0];
933 br->Command = VM_CtBlockRead;
934 br->ContainerId = ad->ad_container->co_mntobj.ObjectId;
935 br->BlockNumber = bio->bio_offset / AAC_BLOCK_SIZE;
936 br->ByteCount = bp->b_bcount;
937 fib->Header.Size += sizeof(struct aac_blockread);
938 cm->cm_sgtable = &br->SgMap;
939 cm->cm_flags |= AAC_CMD_DATAIN;
941 bw = (struct aac_blockwrite *)&fib->data[0];
942 bw->Command = VM_CtBlockWrite;
943 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId;
944 bw->BlockNumber = bio->bio_offset / AAC_BLOCK_SIZE;
945 bw->ByteCount = bp->b_bcount;
946 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */
947 fib->Header.Size += sizeof(struct aac_blockwrite);
948 cm->cm_flags |= AAC_CMD_DATAOUT;
949 cm->cm_sgtable = &bw->SgMap;
957 aac_enqueue_bio(sc, bio);
959 aac_release_command(cm);
964 * Handle a bio-instigated command that has been completed.
967 aac_bio_complete(struct aac_command *cm)
969 struct aac_blockread_response *brr;
970 struct aac_blockwrite_response *bwr;
974 AAC_FSAStatus status;
976 /* fetch relevant status and then release the command */
977 bio = (struct bio *)cm->cm_private;
979 if (bp->b_cmd == BUF_CMD_READ) {
980 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0];
981 status = brr->Status;
983 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0];
984 status = bwr->Status;
986 aac_release_command(cm);
988 /* fix up the bio based on status */
989 if (status == ST_OK) {
994 bp->b_flags |= B_ERROR;
995 /* pass an error string out to the disk layer */
996 code = aac_describe_code(aac_command_status_table, status);
998 aac_biodone(bio, code);
1002 * Dump a block of data to the controller. If the queue is full, tell the
1003 * caller to hold off and wait for the queue to drain.
1006 aac_dump_enqueue(struct aac_disk *ad, u_int32_t lba, void *data, int dumppages)
1008 struct aac_softc *sc;
1009 struct aac_command *cm;
1010 struct aac_fib *fib;
1011 struct aac_blockwrite *bw;
1013 sc = ad->ad_controller;
1016 if (aac_alloc_command(sc, &cm))
1019 /* fill out the command */
1021 cm->cm_datalen = dumppages * PAGE_SIZE;
1022 cm->cm_complete = NULL;
1023 cm->cm_private = NULL;
1024 cm->cm_timestamp = time_second;
1025 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
1029 fib->Header.XferState =
1030 AAC_FIBSTATE_HOSTOWNED |
1031 AAC_FIBSTATE_INITIALISED |
1032 AAC_FIBSTATE_FROMHOST |
1033 AAC_FIBSTATE_REXPECTED |
1035 fib->Header.Command = ContainerCommand;
1036 fib->Header.Size = sizeof(struct aac_fib_header);
1038 bw = (struct aac_blockwrite *)&fib->data[0];
1039 bw->Command = VM_CtBlockWrite;
1040 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId;
1041 bw->BlockNumber = lba;
1042 bw->ByteCount = dumppages * PAGE_SIZE;
1043 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */
1044 fib->Header.Size += sizeof(struct aac_blockwrite);
1045 cm->cm_flags |= AAC_CMD_DATAOUT;
1046 cm->cm_sgtable = &bw->SgMap;
1048 return (aac_start(cm));
1052 * Wait for the card's queue to drain when dumping. Also check for monitor
1056 aac_dump_complete(struct aac_softc *sc)
1058 struct aac_fib *fib;
1059 struct aac_command *cm;
1061 u_int32_t pi, ci, fib_size;
1064 reason = AAC_GET_ISTATUS(sc);
1065 if (reason & AAC_DB_RESPONSE_READY) {
1066 AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY);
1068 if (aac_dequeue_fib(sc,
1069 AAC_HOST_NORM_RESP_QUEUE,
1072 cm = (struct aac_command *)
1073 fib->Header.SenderData;
1075 AAC_PRINT_FIB(sc, fib);
1077 aac_remove_busy(cm);
1078 aac_unmap_command(cm);
1079 aac_enqueue_complete(cm);
1080 aac_release_command(cm);
1084 if (reason & AAC_DB_PRINTF) {
1085 AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF);
1086 aac_print_printf(sc);
1088 pi = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][
1089 AAC_PRODUCER_INDEX];
1090 ci = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][
1091 AAC_CONSUMER_INDEX];
1098 * Submit a command to the controller, return when it completes.
1099 * XXX This is very dangerous! If the card has gone out to lunch, we could
1100 * be stuck here forever. At the same time, signals are not caught
1101 * because there is a risk that a signal could wakeup the tsleep before
1102 * the card has a chance to complete the command. The passed in timeout
1103 * is ignored for the same reason. Since there is no way to cancel a
1104 * command in progress, we should probably create a 'dead' queue where
1105 * commands go that have been interrupted/timed-out/etc, that keeps them
1106 * out of the free pool. That way, if the card is just slow, it won't
1107 * spam the memory of a command that has been recycled.
1110 aac_wait_command(struct aac_command *cm, int timeout)
1116 /* Put the command on the ready queue and get things going */
1117 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
1118 aac_enqueue_ready(cm);
1119 aac_startio(cm->cm_sc);
1121 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) {
1122 error = tsleep(cm, 0, "aacwait", 0);
1129 *Command Buffer Management
1133 * Allocate a command.
1136 aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp)
1138 struct aac_command *cm;
1142 if ((cm = aac_dequeue_free(sc)) == NULL)
1150 * Release a command back to the freelist.
1153 aac_release_command(struct aac_command *cm)
1157 /* (re)initialise the command/FIB */
1158 cm->cm_sgtable = NULL;
1160 cm->cm_complete = NULL;
1161 cm->cm_private = NULL;
1162 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY;
1163 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB;
1164 cm->cm_fib->Header.Flags = 0;
1165 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib);
1168 * These are duplicated in aac_start to cover the case where an
1169 * intermediate stage may have destroyed them. They're left
1170 * initialised here for debugging purposes only.
1172 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
1173 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys;
1174 cm->cm_fib->Header.SenderData = 0;
1176 aac_enqueue_free(cm);
1180 * Map helper for command/FIB allocation.
1183 aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1185 struct aac_softc *sc;
1187 sc = (struct aac_softc *)arg;
1191 sc->aac_fibphys = segs[0].ds_addr;
1195 * Allocate and initialise commands/FIBs for this adapter.
1198 aac_alloc_commands(struct aac_softc *sc)
1200 struct aac_command *cm;
1205 /* allocate the FIBs in DMAable memory and load them */
1206 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs,
1207 BUS_DMA_NOWAIT, &sc->aac_fibmap)) {
1211 bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs,
1212 AAC_FIB_COUNT * sizeof(struct aac_fib),
1213 aac_map_command_helper, sc, 0);
1215 /* initialise constant fields in the command structure */
1216 bzero(sc->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib));
1217 for (i = 0; i < AAC_FIB_COUNT; i++) {
1218 cm = &sc->aac_command[i];
1220 cm->cm_fib = sc->aac_fibs + i;
1221 cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib));
1223 if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap))
1224 aac_release_command(cm);
1230 * Free FIBs owned by this adapter.
1233 aac_free_commands(struct aac_softc *sc)
1239 for (i = 0; i < AAC_FIB_COUNT; i++)
1240 bus_dmamap_destroy(sc->aac_buffer_dmat,
1241 sc->aac_command[i].cm_datamap);
1243 bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap);
1244 bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap);
1248 * Command-mapping helper function - populate this command's s/g table.
1251 aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1253 struct aac_command *cm;
1254 struct aac_fib *fib;
1255 struct aac_sg_table *sg;
1260 cm = (struct aac_command *)arg;
1263 /* find the s/g table */
1264 sg = cm->cm_sgtable;
1266 /* copy into the FIB */
1269 for (i = 0; i < nseg; i++) {
1270 sg->SgEntry[i].SgAddress = segs[i].ds_addr;
1271 sg->SgEntry[i].SgByteCount = segs[i].ds_len;
1273 /* update the FIB size for the s/g count */
1274 fib->Header.Size += nseg * sizeof(struct aac_sg_entry);
1280 * Map a command into controller-visible space.
1283 aac_map_command(struct aac_command *cm)
1285 struct aac_softc *sc;
1291 /* don't map more than once */
1292 if (cm->cm_flags & AAC_CMD_MAPPED)
1295 if (cm->cm_datalen != 0) {
1296 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap,
1297 cm->cm_data, cm->cm_datalen,
1298 aac_map_command_sg, cm, 0);
1300 if (cm->cm_flags & AAC_CMD_DATAIN)
1301 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1302 BUS_DMASYNC_PREREAD);
1303 if (cm->cm_flags & AAC_CMD_DATAOUT)
1304 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1305 BUS_DMASYNC_PREWRITE);
1307 cm->cm_flags |= AAC_CMD_MAPPED;
1311 * Unmap a command from controller-visible space.
1314 aac_unmap_command(struct aac_command *cm)
1316 struct aac_softc *sc;
1322 if (!(cm->cm_flags & AAC_CMD_MAPPED))
1325 if (cm->cm_datalen != 0) {
1326 if (cm->cm_flags & AAC_CMD_DATAIN)
1327 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1328 BUS_DMASYNC_POSTREAD);
1329 if (cm->cm_flags & AAC_CMD_DATAOUT)
1330 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1331 BUS_DMASYNC_POSTWRITE);
1333 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap);
1335 cm->cm_flags &= ~AAC_CMD_MAPPED;
1339 * Hardware Interface
1343 * Initialise the adapter.
1346 aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1348 struct aac_softc *sc;
1352 sc = (struct aac_softc *)arg;
1354 sc->aac_common_busaddr = segs[0].ds_addr;
1358 aac_check_firmware(struct aac_softc *sc)
1360 u_int32_t major, minor, options;
1365 * Retrieve the firmware version numbers. Dell PERC2/QC cards with
1366 * firmware version 1.x are not compatible with this driver.
1368 if (sc->flags & AAC_FLAGS_PERC2QC) {
1369 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0,
1371 device_printf(sc->aac_dev,
1372 "Error reading firmware version\n");
1376 /* These numbers are stored as ASCII! */
1377 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30;
1378 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30;
1380 device_printf(sc->aac_dev,
1381 "Firmware version %d.%d is not supported.\n",
1388 * Retrieve the capabilities/supported options word so we know what
1389 * work-arounds to enable.
1391 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) {
1392 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n");
1395 options = AAC_GET_MAILBOX(sc, 1);
1396 sc->supported_options = options;
1398 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 &&
1399 (sc->flags & AAC_FLAGS_NO4GB) == 0)
1400 sc->flags |= AAC_FLAGS_4GB_WINDOW;
1401 if (options & AAC_SUPPORTED_NONDASD)
1402 sc->flags |= AAC_FLAGS_ENABLE_CAM;
1408 aac_init(struct aac_softc *sc)
1410 struct aac_adapter_init *ip;
1419 * First wait for the adapter to come ready.
1423 code = AAC_GET_FWSTATUS(sc);
1424 if (code & AAC_SELF_TEST_FAILED) {
1425 device_printf(sc->aac_dev, "FATAL: selftest failed\n");
1428 if (code & AAC_KERNEL_PANIC) {
1429 device_printf(sc->aac_dev,
1430 "FATAL: controller kernel panic\n");
1433 if (time_second > (then + AAC_BOOT_TIMEOUT)) {
1434 device_printf(sc->aac_dev,
1435 "FATAL: controller not coming ready, "
1436 "status %x\n", code);
1439 } while (!(code & AAC_UP_AND_RUNNING));
1443 * Create DMA tag for mapping buffers into controller-addressable space.
1445 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1446 1, 0, /* algnmnt, boundary */
1447 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1448 BUS_SPACE_MAXADDR, /* highaddr */
1449 NULL, NULL, /* filter, filterarg */
1450 MAXBSIZE, /* maxsize */
1451 AAC_MAXSGENTRIES, /* nsegments */
1452 MAXBSIZE, /* maxsegsize */
1453 BUS_DMA_ALLOCNOW, /* flags */
1454 &sc->aac_buffer_dmat)) {
1455 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n");
1460 * Create DMA tag for mapping FIBs into controller-addressable space..
1462 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1463 1, 0, /* algnmnt, boundary */
1464 (sc->flags & AAC_FLAGS_4GB_WINDOW) ?
1465 BUS_SPACE_MAXADDR_32BIT :
1466 0x7fffffff, /* lowaddr */
1467 BUS_SPACE_MAXADDR, /* highaddr */
1468 NULL, NULL, /* filter, filterarg */
1470 sizeof(struct aac_fib), /* maxsize */
1473 sizeof(struct aac_fib), /* maxsegsize */
1474 BUS_DMA_ALLOCNOW, /* flags */
1475 &sc->aac_fib_dmat)) {
1476 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");
1481 * Create DMA tag for the common structure and allocate it.
1483 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1484 1, 0, /* algnmnt, boundary */
1485 (sc->flags & AAC_FLAGS_4GB_WINDOW) ?
1486 BUS_SPACE_MAXADDR_32BIT :
1487 0x7fffffff, /* lowaddr */
1488 BUS_SPACE_MAXADDR, /* highaddr */
1489 NULL, NULL, /* filter, filterarg */
1490 8192 + sizeof(struct aac_common), /* maxsize */
1492 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1493 BUS_DMA_ALLOCNOW, /* flags */
1494 &sc->aac_common_dmat)) {
1495 device_printf(sc->aac_dev,
1496 "can't allocate common structure DMA tag\n");
1499 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common,
1500 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) {
1501 device_printf(sc->aac_dev, "can't allocate common structure\n");
1505 * Work around a bug in the 2120 and 2200 that cannot DMA commands
1506 * below address 8192 in physical memory.
1507 * XXX If the padding is not needed, can it be put to use instead
1510 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap,
1511 sc->aac_common, 8192 + sizeof(*sc->aac_common),
1512 aac_common_map, sc, 0);
1514 if (sc->aac_common_busaddr < 8192) {
1516 (struct aac_common *)((uint8_t *)sc->aac_common + 8192);
1517 sc->aac_common_busaddr += 8192;
1519 bzero(sc->aac_common, sizeof(*sc->aac_common));
1521 /* Allocate some FIBs and associated command structs */
1522 if (aac_alloc_commands(sc) != 0)
1526 * Fill in the init structure. This tells the adapter about the
1527 * physical location of various important shared data structures.
1529 ip = &sc->aac_common->ac_init;
1530 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION;
1531 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION;
1533 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr +
1534 offsetof(struct aac_common, ac_fibs);
1535 ip->AdapterFibsVirtualAddress = (aac_phys_addr_t)&sc->aac_common->ac_fibs[0];
1536 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib);
1537 ip->AdapterFibAlign = sizeof(struct aac_fib);
1539 ip->PrintfBufferAddress = sc->aac_common_busaddr +
1540 offsetof(struct aac_common, ac_printf);
1541 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE;
1543 /* The adapter assumes that pages are 4K in size */
1544 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE;
1545 ip->HostElapsedSeconds = time_second; /* reset later if invalid */
1548 * Initialise FIB queues. Note that it appears that the layout of the
1549 * indexes and the segmentation of the entries may be mandated by the
1550 * adapter, which is only told about the base of the queue index fields.
1552 * The initial values of the indices are assumed to inform the adapter
1553 * of the sizes of the respective queues, and theoretically it could
1554 * work out the entire layout of the queue structures from this. We
1555 * take the easy route and just lay this area out like everyone else
1558 * The Linux driver uses a much more complex scheme whereby several
1559 * header records are kept for each queue. We use a couple of generic
1560 * list manipulation functions which 'know' the size of each list by
1561 * virtue of a table.
1563 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN;
1564 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN;
1565 sc->aac_queues = (struct aac_queue_table *)qaddr;
1566 ip->CommHeaderAddress = sc->aac_common_busaddr +
1567 ((u_int32_t)sc->aac_queues -
1568 (u_int32_t)sc->aac_common);
1569 bzero(sc->aac_queues, sizeof(struct aac_queue_table));
1571 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] =
1572 AAC_HOST_NORM_CMD_ENTRIES;
1573 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] =
1574 AAC_HOST_NORM_CMD_ENTRIES;
1575 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] =
1576 AAC_HOST_HIGH_CMD_ENTRIES;
1577 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] =
1578 AAC_HOST_HIGH_CMD_ENTRIES;
1579 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] =
1580 AAC_ADAP_NORM_CMD_ENTRIES;
1581 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] =
1582 AAC_ADAP_NORM_CMD_ENTRIES;
1583 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] =
1584 AAC_ADAP_HIGH_CMD_ENTRIES;
1585 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] =
1586 AAC_ADAP_HIGH_CMD_ENTRIES;
1587 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]=
1588 AAC_HOST_NORM_RESP_ENTRIES;
1589 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]=
1590 AAC_HOST_NORM_RESP_ENTRIES;
1591 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]=
1592 AAC_HOST_HIGH_RESP_ENTRIES;
1593 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]=
1594 AAC_HOST_HIGH_RESP_ENTRIES;
1595 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]=
1596 AAC_ADAP_NORM_RESP_ENTRIES;
1597 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]=
1598 AAC_ADAP_NORM_RESP_ENTRIES;
1599 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]=
1600 AAC_ADAP_HIGH_RESP_ENTRIES;
1601 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]=
1602 AAC_ADAP_HIGH_RESP_ENTRIES;
1603 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] =
1604 &sc->aac_queues->qt_HostNormCmdQueue[0];
1605 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] =
1606 &sc->aac_queues->qt_HostHighCmdQueue[0];
1607 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] =
1608 &sc->aac_queues->qt_AdapNormCmdQueue[0];
1609 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] =
1610 &sc->aac_queues->qt_AdapHighCmdQueue[0];
1611 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] =
1612 &sc->aac_queues->qt_HostNormRespQueue[0];
1613 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] =
1614 &sc->aac_queues->qt_HostHighRespQueue[0];
1615 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] =
1616 &sc->aac_queues->qt_AdapNormRespQueue[0];
1617 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] =
1618 &sc->aac_queues->qt_AdapHighRespQueue[0];
1621 * Do controller-type-specific initialisation
1623 switch (sc->aac_hwif) {
1624 case AAC_HWIF_I960RX:
1625 AAC_SETREG4(sc, AAC_RX_ODBR, ~0);
1630 * Give the init structure to the controller.
1632 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT,
1633 sc->aac_common_busaddr +
1634 offsetof(struct aac_common, ac_init), 0, 0, 0,
1636 device_printf(sc->aac_dev,
1637 "error establishing init structure\n");
1648 * Send a synchronous command to the controller and wait for a result.
1651 aac_sync_command(struct aac_softc *sc, u_int32_t command,
1652 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3,
1660 /* populate the mailbox */
1661 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3);
1663 /* ensure the sync command doorbell flag is cleared */
1664 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
1666 /* then set it to signal the adapter */
1667 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND);
1669 /* spin waiting for the command to complete */
1672 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) {
1673 debug(1, "timed out");
1676 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND));
1678 /* clear the completion flag */
1679 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
1681 /* get the command status */
1682 status = AAC_GET_MAILBOX(sc, 0);
1689 * Grab the sync fib area.
1692 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags)
1696 * If the force flag is set, the system is shutting down, or in
1697 * trouble. Ignore the mutex.
1699 if (!(flags & AAC_SYNC_LOCK_FORCE))
1700 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock);
1702 *fib = &sc->aac_common->ac_sync_fib;
1708 * Release the sync fib area.
1711 aac_release_sync_fib(struct aac_softc *sc)
1714 AAC_LOCK_RELEASE(&sc->aac_sync_lock);
1718 * Send a synchronous FIB to the controller and wait for a result.
1721 aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate,
1722 struct aac_fib *fib, u_int16_t datasize)
1726 if (datasize > AAC_FIB_DATASIZE)
1730 * Set up the sync FIB
1732 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED |
1733 AAC_FIBSTATE_INITIALISED |
1735 fib->Header.XferState |= xferstate;
1736 fib->Header.Command = command;
1737 fib->Header.StructType = AAC_FIBTYPE_TFIB;
1738 fib->Header.Size = sizeof(struct aac_fib) + datasize;
1739 fib->Header.SenderSize = sizeof(struct aac_fib);
1740 fib->Header.SenderFibAddress = (u_int32_t)fib;
1741 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr +
1742 offsetof(struct aac_common,
1746 * Give the FIB to the controller, wait for a response.
1748 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB,
1749 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) {
1750 debug(2, "IO error");
1758 * Adapter-space FIB queue manipulation
1760 * Note that the queue implementation here is a little funky; neither the PI or
1761 * CI will ever be zero. This behaviour is a controller feature.
1767 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL},
1768 {AAC_HOST_HIGH_CMD_ENTRIES, 0},
1769 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY},
1770 {AAC_ADAP_HIGH_CMD_ENTRIES, 0},
1771 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL},
1772 {AAC_HOST_HIGH_RESP_ENTRIES, 0},
1773 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY},
1774 {AAC_ADAP_HIGH_RESP_ENTRIES, 0}
1778 * Atomically insert an entry into the nominated queue, returns 0 on success or
1779 * EBUSY if the queue is full.
1781 * Note: it would be more efficient to defer notifying the controller in
1782 * the case where we may be inserting several entries in rapid succession,
1783 * but implementing this usefully may be difficult (it would involve a
1784 * separate queue/notify interface).
1787 aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm)
1796 fib_size = cm->cm_fib->Header.Size;
1797 fib_addr = cm->cm_fib->Header.ReceiverFibAddress;
1801 /* get the producer/consumer indices */
1802 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX];
1803 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX];
1805 /* wrap the queue? */
1806 if (pi >= aac_qinfo[queue].size)
1809 /* check for queue full */
1810 if ((pi + 1) == ci) {
1815 * To avoid a race with its completion interrupt, place this command on
1816 * the busy queue prior to advertising it to the controller.
1818 aac_enqueue_busy(cm);
1822 /* populate queue entry */
1823 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size;
1824 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr;
1826 /* update producer index */
1827 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1;
1829 /* notify the adapter if we know how */
1830 if (aac_qinfo[queue].notify != 0)
1831 AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
1841 * Atomically remove one entry from the nominated queue, returns 0 on
1842 * success or ENOENT if the queue is empty.
1845 aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size,
1846 struct aac_fib **fib_addr)
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];
1860 /* check for queue empty */
1866 /* wrap the pi so the following test works */
1867 if (pi >= aac_qinfo[queue].size)
1874 /* wrap the queue? */
1875 if (ci >= aac_qinfo[queue].size)
1878 /* fetch the entry */
1879 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size;
1880 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] +
1884 * Is this a fast response? If it is, update the fib fields in
1885 * local memory so the whole fib doesn't have to be DMA'd back up.
1887 if (*(uintptr_t *)fib_addr & 0x01) {
1888 *(uintptr_t *)fib_addr &= ~0x01;
1889 (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP;
1890 *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL;
1892 /* update consumer index */
1893 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1;
1895 /* if we have made the queue un-full, notify the adapter */
1896 if (notify && (aac_qinfo[queue].notify != 0))
1897 AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
1906 * Put our response to an Adapter Initialed Fib on the response queue
1909 aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib)
1918 /* Tell the adapter where the FIB is */
1919 fib_size = fib->Header.Size;
1920 fib_addr = fib->Header.SenderFibAddress;
1921 fib->Header.ReceiverFibAddress = fib_addr;
1925 /* get the producer/consumer indices */
1926 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX];
1927 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX];
1929 /* wrap the queue? */
1930 if (pi >= aac_qinfo[queue].size)
1933 /* check for queue full */
1934 if ((pi + 1) == ci) {
1939 /* populate queue entry */
1940 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size;
1941 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr;
1943 /* update producer index */
1944 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1;
1946 /* notify the adapter if we know how */
1947 if (aac_qinfo[queue].notify != 0)
1948 AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
1958 * Check for commands that have been outstanding for a suspiciously long time,
1959 * and complain about them.
1962 aac_timeout(void *xsc)
1964 struct aac_softc *sc = xsc;
1965 struct aac_command *cm;
1969 /* simulate an interrupt to handle possibly-missed interrupts */
1971 * XXX This was done to work around another bug which has since been
1972 * fixed. It is dangerous anyways because you don't want multiple
1973 * threads in the interrupt handler at the same time! If calling
1974 * is deamed neccesary in the future, proper mutexes must be used.
1980 /* kick the I/O queue to restart it in the case of deadlock */
1985 * traverse the busy command list, bitch about late commands once
1989 deadline = time_second - AAC_CMD_TIMEOUT;
1991 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) {
1992 if ((cm->cm_timestamp < deadline)
1993 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) {
1994 cm->cm_flags |= AAC_CMD_TIMEDOUT;
1995 device_printf(sc->aac_dev,
1996 "COMMAND %p TIMEOUT AFTER %d SECONDS\n",
1997 cm, (int)(time_second-cm->cm_timestamp));
1998 AAC_PRINT_FIB(sc, cm->cm_fib);
2003 code = AAC_GET_FWSTATUS(sc);
2004 if (code != AAC_UP_AND_RUNNING) {
2005 device_printf(sc->aac_dev, "WARNING! Controller is no "
2006 "longer running! code= 0x%x\n", code);
2012 /* reset the timer for next time */
2013 callout_reset(&sc->aac_watchdog, AAC_PERIODIC_INTERVAL * hz,
2018 * Interface Function Vectors
2022 * Read the current firmware status word.
2025 aac_sa_get_fwstatus(struct aac_softc *sc)
2029 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS));
2033 aac_rx_get_fwstatus(struct aac_softc *sc)
2037 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS));
2041 aac_fa_get_fwstatus(struct aac_softc *sc)
2047 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS);
2052 * Notify the controller of a change in a given queue
2056 aac_sa_qnotify(struct aac_softc *sc, int qbit)
2060 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit);
2064 aac_rx_qnotify(struct aac_softc *sc, int qbit)
2068 AAC_SETREG4(sc, AAC_RX_IDBR, qbit);
2072 aac_fa_qnotify(struct aac_softc *sc, int qbit)
2076 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit);
2081 * Get the interrupt reason bits
2084 aac_sa_get_istatus(struct aac_softc *sc)
2088 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0));
2092 aac_rx_get_istatus(struct aac_softc *sc)
2096 return(AAC_GETREG4(sc, AAC_RX_ODBR));
2100 aac_fa_get_istatus(struct aac_softc *sc)
2106 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0);
2111 * Clear some interrupt reason bits
2114 aac_sa_clear_istatus(struct aac_softc *sc, int mask)
2118 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask);
2122 aac_rx_clear_istatus(struct aac_softc *sc, int mask)
2126 AAC_SETREG4(sc, AAC_RX_ODBR, mask);
2130 aac_fa_clear_istatus(struct aac_softc *sc, int mask)
2134 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask);
2139 * Populate the mailbox and set the command word
2142 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command,
2143 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2147 AAC_SETREG4(sc, AAC_SA_MAILBOX, command);
2148 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0);
2149 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1);
2150 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2);
2151 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3);
2155 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command,
2156 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2160 AAC_SETREG4(sc, AAC_RX_MAILBOX, command);
2161 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0);
2162 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1);
2163 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2);
2164 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3);
2168 aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command,
2169 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2173 AAC_SETREG4(sc, AAC_FA_MAILBOX, command);
2175 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0);
2177 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1);
2179 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2);
2181 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3);
2186 * Fetch the immediate command status word
2189 aac_sa_get_mailbox(struct aac_softc *sc, int mb)
2193 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4)));
2197 aac_rx_get_mailbox(struct aac_softc *sc, int mb)
2201 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4)));
2205 aac_fa_get_mailbox(struct aac_softc *sc, int mb)
2211 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4));
2216 * Set/clear interrupt masks
2219 aac_sa_set_interrupts(struct aac_softc *sc, int enable)
2221 debug(2, "%sable interrupts", enable ? "en" : "dis");
2224 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
2226 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0);
2231 aac_rx_set_interrupts(struct aac_softc *sc, int enable)
2233 debug(2, "%sable interrupts", enable ? "en" : "dis");
2236 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS);
2238 AAC_SETREG4(sc, AAC_RX_OIMR, ~0);
2243 aac_fa_set_interrupts(struct aac_softc *sc, int enable)
2245 debug(2, "%sable interrupts", enable ? "en" : "dis");
2248 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
2251 AAC_SETREG2((sc), AAC_FA_MASK0, ~0);
2257 * Debugging and Diagnostics
2261 * Print some information about the controller.
2264 aac_describe_controller(struct aac_softc *sc)
2266 struct aac_fib *fib;
2267 struct aac_adapter_info *info;
2271 aac_alloc_sync_fib(sc, &fib, 0);
2274 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) {
2275 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n");
2276 aac_release_sync_fib(sc);
2279 info = (struct aac_adapter_info *)&fib->data[0];
2281 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n",
2282 aac_describe_code(aac_cpu_variant, info->CpuVariant),
2283 info->ClockSpeed, info->BufferMem / (1024 * 1024),
2284 aac_describe_code(aac_battery_platform,
2285 info->batteryPlatform));
2287 /* save the kernel revision structure for later use */
2288 sc->aac_revision = info->KernelRevision;
2289 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n",
2290 info->KernelRevision.external.comp.major,
2291 info->KernelRevision.external.comp.minor,
2292 info->KernelRevision.external.comp.dash,
2293 info->KernelRevision.buildNumber,
2294 (u_int32_t)(info->SerialNumber & 0xffffff));
2296 aac_release_sync_fib(sc);
2298 if (1 || bootverbose) {
2299 device_printf(sc->aac_dev, "Supported Options=%b\n",
2300 sc->supported_options,
2319 * Look up a text description of a numeric error code and return a pointer to
2323 aac_describe_code(struct aac_code_lookup *table, u_int32_t code)
2327 for (i = 0; table[i].string != NULL; i++)
2328 if (table[i].code == code)
2329 return(table[i].string);
2330 return(table[i + 1].string);
2334 * Management Interface
2338 aac_open(struct dev_open_args *ap)
2340 cdev_t dev = ap->a_head.a_dev;
2341 struct aac_softc *sc;
2347 /* Check to make sure the device isn't already open */
2348 if (sc->aac_state & AAC_STATE_OPEN) {
2351 sc->aac_state |= AAC_STATE_OPEN;
2357 aac_close(struct dev_close_args *ap)
2359 cdev_t dev = ap->a_head.a_dev;
2360 struct aac_softc *sc;
2366 /* Mark this unit as no longer open */
2367 sc->aac_state &= ~AAC_STATE_OPEN;
2373 aac_ioctl(struct dev_ioctl_args *ap)
2375 cdev_t dev = ap->a_head.a_dev;
2376 caddr_t arg = ap->a_data;
2377 struct aac_softc *sc = dev->si_drv1;
2383 if (ap->a_cmd == AACIO_STATS) {
2384 union aac_statrequest *as = (union aac_statrequest *)arg;
2386 switch (as->as_item) {
2392 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat,
2393 sizeof(struct aac_qstat));
2402 arg = *(caddr_t *)arg;
2404 switch (ap->a_cmd) {
2405 /* AACIO_STATS already handled above */
2406 case FSACTL_SENDFIB:
2407 debug(1, "FSACTL_SENDFIB");
2408 error = aac_ioctl_sendfib(sc, arg);
2410 case FSACTL_AIF_THREAD:
2411 debug(1, "FSACTL_AIF_THREAD");
2414 case FSACTL_OPEN_GET_ADAPTER_FIB:
2415 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB");
2417 * Pass the caller out an AdapterFibContext.
2419 * Note that because we only support one opener, we
2420 * basically ignore this. Set the caller's context to a magic
2421 * number just in case.
2423 * The Linux code hands the driver a pointer into kernel space,
2424 * and then trusts it when the caller hands it back. Aiee!
2425 * Here, we give it the proc pointer of the per-adapter aif
2426 * thread. It's only used as a sanity check in other calls.
2428 i = (int)sc->aifthread;
2429 error = copyout(&i, arg, sizeof(i));
2431 case FSACTL_GET_NEXT_ADAPTER_FIB:
2432 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB");
2433 error = aac_getnext_aif(sc, arg);
2435 case FSACTL_CLOSE_GET_ADAPTER_FIB:
2436 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB");
2437 /* don't do anything here */
2439 case FSACTL_MINIPORT_REV_CHECK:
2440 debug(1, "FSACTL_MINIPORT_REV_CHECK");
2441 error = aac_rev_check(sc, arg);
2443 case FSACTL_QUERY_DISK:
2444 debug(1, "FSACTL_QUERY_DISK");
2445 error = aac_query_disk(sc, arg);
2447 case FSACTL_DELETE_DISK:
2449 * We don't trust the underland to tell us when to delete a
2450 * container, rather we rely on an AIF coming from the
2456 debug(1, "unsupported cmd 0x%lx\n", ap->a_cmd);
2464 aac_poll(struct dev_poll_args *ap)
2466 cdev_t dev = ap->a_head.a_dev;
2467 struct aac_softc *sc;
2473 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2474 if ((ap->a_events & (POLLRDNORM | POLLIN)) != 0) {
2475 if (sc->aac_aifq_tail != sc->aac_aifq_head)
2476 revents |= ap->a_events & (POLLIN | POLLRDNORM);
2478 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2481 if (ap->a_events & (POLLIN | POLLRDNORM))
2482 selrecord(curthread, &sc->rcv_select);
2484 ap->a_events = revents;
2489 * Send a FIB supplied from userspace
2492 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib)
2494 struct aac_command *cm;
2504 if (aac_alloc_command(sc, &cm)) {
2510 * Fetch the FIB header, then re-copy to get data as well.
2512 if ((error = copyin(ufib, cm->cm_fib,
2513 sizeof(struct aac_fib_header))) != 0)
2515 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header);
2516 if (size > sizeof(struct aac_fib)) {
2517 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n",
2518 size, sizeof(struct aac_fib));
2519 size = sizeof(struct aac_fib);
2521 if ((error = copyin(ufib, cm->cm_fib, size)) != 0)
2523 cm->cm_fib->Header.Size = size;
2524 cm->cm_timestamp = time_second;
2527 * Pass the FIB to the controller, wait for it to complete.
2529 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */
2530 kprintf("aac_wait_command return %d\n", error);
2535 * Copy the FIB and data back out to the caller.
2537 size = cm->cm_fib->Header.Size;
2538 if (size > sizeof(struct aac_fib)) {
2539 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n",
2540 size, sizeof(struct aac_fib));
2541 size = sizeof(struct aac_fib);
2543 error = copyout(cm->cm_fib, ufib, size);
2547 aac_release_command(cm);
2553 * Handle an AIF sent to us by the controller; queue it for later reference.
2554 * If the queue fills up, then drop the older entries.
2557 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib)
2559 struct aac_aif_command *aif;
2560 struct aac_container *co, *co_next;
2561 struct aac_mntinfo *mi;
2562 struct aac_mntinforesp *mir = NULL;
2565 int count = 0, added = 0, i = 0;
2569 aif = (struct aac_aif_command*)&fib->data[0];
2570 aac_print_aif(sc, aif);
2572 /* Is it an event that we should care about? */
2573 switch (aif->command) {
2574 case AifCmdEventNotify:
2575 switch (aif->data.EN.type) {
2576 case AifEnAddContainer:
2577 case AifEnDeleteContainer:
2579 * A container was added or deleted, but the message
2580 * doesn't tell us anything else! Re-enumerate the
2581 * containers and sort things out.
2583 aac_alloc_sync_fib(sc, &fib, 0);
2584 mi = (struct aac_mntinfo *)&fib->data[0];
2587 * Ask the controller for its containers one at
2589 * XXX What if the controller's list changes
2590 * midway through this enumaration?
2591 * XXX This should be done async.
2593 bzero(mi, sizeof(struct aac_mntinfo));
2594 mi->Command = VM_NameServe;
2595 mi->MntType = FT_FILESYS;
2597 rsize = sizeof(mir);
2598 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
2599 sizeof(struct aac_mntinfo))) {
2600 device_printf(sc->aac_dev,
2601 "Error probing container %d\n", i);
2605 mir = (struct aac_mntinforesp *)&fib->data[0];
2606 /* XXX Need to check if count changed */
2607 count = mir->MntRespCount;
2610 * Check the container against our list.
2611 * co->co_found was already set to 0 in a
2614 if ((mir->Status == ST_OK) &&
2615 (mir->MntTable[0].VolType != CT_NONE)) {
2618 &sc->aac_container_tqh,
2620 if (co->co_mntobj.ObjectId ==
2621 mir->MntTable[0].ObjectId) {
2628 * If the container matched, continue
2637 * This is a new container. Do all the
2638 * appropriate things to set it up. */
2639 aac_add_container(sc, mir, 1);
2643 } while ((i < count) && (i < AAC_MAX_CONTAINERS));
2644 aac_release_sync_fib(sc);
2647 * Go through our list of containers and see which ones
2648 * were not marked 'found'. Since the controller didn't
2649 * list them they must have been deleted. Do the
2650 * appropriate steps to destroy the device. Also reset
2651 * the co->co_found field.
2653 co = TAILQ_FIRST(&sc->aac_container_tqh);
2654 while (co != NULL) {
2655 if (co->co_found == 0) {
2656 device_delete_child(sc->aac_dev,
2658 co_next = TAILQ_NEXT(co, co_link);
2659 AAC_LOCK_ACQUIRE(&sc->
2660 aac_container_lock);
2661 TAILQ_REMOVE(&sc->aac_container_tqh, co,
2663 AAC_LOCK_RELEASE(&sc->
2664 aac_container_lock);
2669 co = TAILQ_NEXT(co, co_link);
2673 /* Attach the newly created containers */
2675 bus_generic_attach(sc->aac_dev);
2687 /* Copy the AIF data to the AIF queue for ioctl retrieval */
2688 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2689 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH;
2690 if (next != sc->aac_aifq_tail) {
2691 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command));
2692 sc->aac_aifq_head = next;
2694 /* On the off chance that someone is sleeping for an aif... */
2695 if (sc->aac_state & AAC_STATE_AIF_SLEEPER)
2696 wakeup(sc->aac_aifq);
2697 /* token may have been lost */
2698 /* Wakeup any poll()ers */
2699 selwakeup(&sc->rcv_select);
2700 /* token may have been lost */
2702 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2708 * Return the Revision of the driver to userspace and check to see if the
2709 * userspace app is possibly compatible. This is extremely bogus since
2710 * our driver doesn't follow Adaptec's versioning system. Cheat by just
2711 * returning what the card reported.
2714 aac_rev_check(struct aac_softc *sc, caddr_t udata)
2716 struct aac_rev_check rev_check;
2717 struct aac_rev_check_resp rev_check_resp;
2723 * Copyin the revision struct from userspace
2725 if ((error = copyin(udata, (caddr_t)&rev_check,
2726 sizeof(struct aac_rev_check))) != 0) {
2730 debug(2, "Userland revision= %d\n",
2731 rev_check.callingRevision.buildNumber);
2734 * Doctor up the response struct.
2736 rev_check_resp.possiblyCompatible = 1;
2737 rev_check_resp.adapterSWRevision.external.ul =
2738 sc->aac_revision.external.ul;
2739 rev_check_resp.adapterSWRevision.buildNumber =
2740 sc->aac_revision.buildNumber;
2742 return(copyout((caddr_t)&rev_check_resp, udata,
2743 sizeof(struct aac_rev_check_resp)));
2747 * Pass the caller the next AIF in their queue
2750 aac_getnext_aif(struct aac_softc *sc, caddr_t arg)
2752 struct get_adapter_fib_ioctl agf;
2757 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) {
2760 * Check the magic number that we gave the caller.
2762 if (agf.AdapterFibContext != (int)sc->aifthread) {
2767 error = aac_return_aif(sc, agf.AifFib);
2769 if ((error == EAGAIN) && (agf.Wait)) {
2770 sc->aac_state |= AAC_STATE_AIF_SLEEPER;
2771 while (error == EAGAIN) {
2772 error = tsleep(sc->aac_aifq,
2773 PCATCH, "aacaif", 0);
2775 error = aac_return_aif(sc,
2778 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER;
2787 * Hand the next AIF off the top of the queue out to userspace.
2789 * YYY token could be lost during copyout
2792 aac_return_aif(struct aac_softc *sc, caddr_t uptr)
2798 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2799 if (sc->aac_aifq_tail == sc->aac_aifq_head) {
2802 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr,
2803 sizeof(struct aac_aif_command));
2805 kprintf("aac_return_aif: copyout returned %d\n", error);
2807 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) %
2810 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2815 * Give the userland some information about the container. The AAC arch
2816 * expects the driver to be a SCSI passthrough type driver, so it expects
2817 * the containers to have b:t:l numbers. Fake it.
2820 aac_query_disk(struct aac_softc *sc, caddr_t uptr)
2822 struct aac_query_disk query_disk;
2823 struct aac_container *co;
2824 struct aac_disk *disk;
2831 error = copyin(uptr, (caddr_t)&query_disk,
2832 sizeof(struct aac_query_disk));
2836 id = query_disk.ContainerNumber;
2840 AAC_LOCK_ACQUIRE(&sc->aac_container_lock);
2841 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) {
2842 if (co->co_mntobj.ObjectId == id)
2847 query_disk.Valid = 0;
2848 query_disk.Locked = 0;
2849 query_disk.Deleted = 1; /* XXX is this right? */
2851 disk = device_get_softc(co->co_disk);
2852 query_disk.Valid = 1;
2854 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0;
2855 query_disk.Deleted = 0;
2856 query_disk.Bus = device_get_unit(sc->aac_dev);
2857 query_disk.Target = disk->unit;
2859 query_disk.UnMapped = 0;
2860 bcopy(disk->ad_dev_t->si_name,
2861 &query_disk.diskDeviceName[0], 10);
2863 AAC_LOCK_RELEASE(&sc->aac_container_lock);
2865 error = copyout((caddr_t)&query_disk, uptr,
2866 sizeof(struct aac_query_disk));
2872 aac_get_bus_info(struct aac_softc *sc)
2874 struct aac_fib *fib;
2875 struct aac_ctcfg *c_cmd;
2876 struct aac_ctcfg_resp *c_resp;
2877 struct aac_vmioctl *vmi;
2878 struct aac_vmi_businf_resp *vmi_resp;
2879 struct aac_getbusinf businfo;
2880 struct aac_cam_inf *caminf;
2882 int i, found, error;
2884 aac_alloc_sync_fib(sc, &fib, 0);
2885 c_cmd = (struct aac_ctcfg *)&fib->data[0];
2886 bzero(c_cmd, sizeof(struct aac_ctcfg));
2888 c_cmd->Command = VM_ContainerConfig;
2889 c_cmd->cmd = CT_GET_SCSI_METHOD;
2892 error = aac_sync_fib(sc, ContainerCommand, 0, fib,
2893 sizeof(struct aac_ctcfg));
2895 device_printf(sc->aac_dev, "Error %d sending "
2896 "VM_ContainerConfig command\n", error);
2897 aac_release_sync_fib(sc);
2901 c_resp = (struct aac_ctcfg_resp *)&fib->data[0];
2902 if (c_resp->Status != ST_OK) {
2903 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n",
2905 aac_release_sync_fib(sc);
2909 sc->scsi_method_id = c_resp->param;
2911 vmi = (struct aac_vmioctl *)&fib->data[0];
2912 bzero(vmi, sizeof(struct aac_vmioctl));
2914 vmi->Command = VM_Ioctl;
2915 vmi->ObjType = FT_DRIVE;
2916 vmi->MethId = sc->scsi_method_id;
2918 vmi->IoctlCmd = GetBusInfo;
2920 error = aac_sync_fib(sc, ContainerCommand, 0, fib,
2921 sizeof(struct aac_vmioctl));
2923 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n",
2925 aac_release_sync_fib(sc);
2929 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0];
2930 if (vmi_resp->Status != ST_OK) {
2931 debug(1, "VM_Ioctl returned %d\n", vmi_resp->Status);
2932 aac_release_sync_fib(sc);
2936 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf));
2937 aac_release_sync_fib(sc);
2940 for (i = 0; i < businfo.BusCount; i++) {
2941 if (businfo.BusValid[i] != AAC_BUS_VALID)
2944 MALLOC(caminf, struct aac_cam_inf *,
2945 sizeof(struct aac_cam_inf), M_AACBUF, M_INTWAIT | M_ZERO);
2947 child = device_add_child(sc->aac_dev, "aacp", -1);
2948 if (child == NULL) {
2949 device_printf(sc->aac_dev, "device_add_child failed\n");
2953 caminf->TargetsPerBus = businfo.TargetsPerBus;
2954 caminf->BusNumber = i;
2955 caminf->InitiatorBusId = businfo.InitiatorBusId[i];
2956 caminf->aac_sc = sc;
2958 device_set_ivars(child, caminf);
2959 device_set_desc(child, "SCSI Passthrough Bus");
2965 bus_generic_attach(sc->aac_dev);