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 1.17 2005/02/04 02:55:44 dillon 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>
63 #include <machine/bus_memio.h>
64 #include <machine/bus.h>
65 #include <machine/resource.h>
68 #include "aac_ioctl.h"
70 #include "aac_tables.h"
73 static void aac_startup(void *arg);
74 static void aac_add_container(struct aac_softc *sc,
75 struct aac_mntinforesp *mir, int f);
76 static void aac_get_bus_info(struct aac_softc *sc);
78 /* Command Processing */
79 static void aac_timeout(void *ssc);
80 static int aac_start(struct aac_command *cm);
81 static void aac_complete(void *context, int pending);
82 static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp);
83 static void aac_bio_complete(struct aac_command *cm);
84 static int aac_wait_command(struct aac_command *cm, int timeout);
85 static void aac_host_command(struct aac_softc *sc);
86 static void aac_host_response(struct aac_softc *sc);
88 /* Command Buffer Management */
89 static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs,
91 static int aac_alloc_commands(struct aac_softc *sc);
92 static void aac_free_commands(struct aac_softc *sc);
93 static void aac_map_command(struct aac_command *cm);
94 static void aac_unmap_command(struct aac_command *cm);
96 /* Hardware Interface */
97 static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg,
99 static int aac_check_firmware(struct aac_softc *sc);
100 static int aac_init(struct aac_softc *sc);
101 static int aac_sync_command(struct aac_softc *sc, u_int32_t command,
102 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
103 u_int32_t arg3, u_int32_t *sp);
104 static int aac_enqueue_fib(struct aac_softc *sc, int queue,
105 struct aac_command *cm);
106 static int aac_dequeue_fib(struct aac_softc *sc, int queue,
107 u_int32_t *fib_size, struct aac_fib **fib_addr);
108 static int aac_enqueue_response(struct aac_softc *sc, int queue,
109 struct aac_fib *fib);
111 /* Falcon/PPC interface */
112 static int aac_fa_get_fwstatus(struct aac_softc *sc);
113 static void aac_fa_qnotify(struct aac_softc *sc, int qbit);
114 static int aac_fa_get_istatus(struct aac_softc *sc);
115 static void aac_fa_clear_istatus(struct aac_softc *sc, int mask);
116 static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command,
117 u_int32_t arg0, u_int32_t arg1,
118 u_int32_t arg2, u_int32_t arg3);
119 static int aac_fa_get_mailbox(struct aac_softc *sc, int mb);
120 static void aac_fa_set_interrupts(struct aac_softc *sc, int enable);
122 struct aac_interface aac_fa_interface = {
126 aac_fa_clear_istatus,
129 aac_fa_set_interrupts
132 /* StrongARM interface */
133 static int aac_sa_get_fwstatus(struct aac_softc *sc);
134 static void aac_sa_qnotify(struct aac_softc *sc, int qbit);
135 static int aac_sa_get_istatus(struct aac_softc *sc);
136 static void aac_sa_clear_istatus(struct aac_softc *sc, int mask);
137 static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command,
138 u_int32_t arg0, u_int32_t arg1,
139 u_int32_t arg2, u_int32_t arg3);
140 static int aac_sa_get_mailbox(struct aac_softc *sc, int mb);
141 static void aac_sa_set_interrupts(struct aac_softc *sc, int enable);
143 struct aac_interface aac_sa_interface = {
147 aac_sa_clear_istatus,
150 aac_sa_set_interrupts
153 /* i960Rx interface */
154 static int aac_rx_get_fwstatus(struct aac_softc *sc);
155 static void aac_rx_qnotify(struct aac_softc *sc, int qbit);
156 static int aac_rx_get_istatus(struct aac_softc *sc);
157 static void aac_rx_clear_istatus(struct aac_softc *sc, int mask);
158 static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command,
159 u_int32_t arg0, u_int32_t arg1,
160 u_int32_t arg2, u_int32_t arg3);
161 static int aac_rx_get_mailbox(struct aac_softc *sc, int mb);
162 static void aac_rx_set_interrupts(struct aac_softc *sc, int enable);
164 struct aac_interface aac_rx_interface = {
168 aac_rx_clear_istatus,
171 aac_rx_set_interrupts
174 /* Debugging and Diagnostics */
175 static void aac_describe_controller(struct aac_softc *sc);
176 static char *aac_describe_code(struct aac_code_lookup *table,
179 /* Management Interface */
180 static d_open_t aac_open;
181 static d_close_t aac_close;
182 static d_ioctl_t aac_ioctl;
183 static d_poll_t aac_poll;
184 static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib);
185 static void aac_handle_aif(struct aac_softc *sc,
186 struct aac_fib *fib);
187 static int aac_rev_check(struct aac_softc *sc, caddr_t udata);
188 static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg);
189 static int aac_return_aif(struct aac_softc *sc, caddr_t uptr);
190 static int aac_query_disk(struct aac_softc *sc, caddr_t uptr);
192 #define AAC_CDEV_MAJOR 150
194 static struct cdevsw aac_cdevsw = {
196 AAC_CDEV_MAJOR, /* major */
202 aac_close, /* close */
205 aac_ioctl, /* ioctl */
208 nostrategy, /* strategy */
213 DECLARE_DUMMY_MODULE(aac);
215 MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver");
218 SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters");
225 * Initialise the controller and softc
228 aac_attach(struct aac_softc *sc)
233 callout_init(&sc->aac_watchdog);
236 * Initialise per-controller queues.
241 aac_initq_complete(sc);
244 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
246 * Initialise command-completion task.
248 TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc);
251 /* disable interrupts before we enable anything */
252 AAC_MASK_INTERRUPTS(sc);
254 /* mark controller as suspended until we get ourselves organised */
255 sc->aac_state |= AAC_STATE_SUSPEND;
258 * Check that the firmware on the card is supported.
260 if ((error = aac_check_firmware(sc)) != 0)
263 /* Init the sync fib lock */
264 AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock");
267 * Initialise the adapter.
269 if ((error = aac_init(sc)) != 0)
273 * Print a little information about the controller.
275 aac_describe_controller(sc);
278 * Register to probe our containers later.
280 TAILQ_INIT(&sc->aac_container_tqh);
281 AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock");
284 * Lock for the AIF queue
286 AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock");
288 sc->aac_ich.ich_func = aac_startup;
289 sc->aac_ich.ich_arg = sc;
290 sc->aac_ich.ich_desc = "aac";
291 if (config_intrhook_establish(&sc->aac_ich) != 0) {
292 device_printf(sc->aac_dev,
293 "can't establish configuration hook\n");
298 * Make the control device.
300 unit = device_get_unit(sc->aac_dev);
301 cdevsw_add(&aac_cdevsw, -1, unit);
302 sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_WHEEL, 0644,
304 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
305 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit);
306 (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit);
308 sc->aac_dev_t->si_drv1 = sc;
309 reference_dev(sc->aac_dev_t);
311 /* Create the AIF thread */
312 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
313 if (kthread_create((void(*)(void *))aac_host_command, sc,
314 &sc->aifthread, 0, "aac%daif", unit))
316 if (kthread_create((void(*)(void *))aac_host_command, sc,
317 &sc->aifthread, "aac%daif", unit))
319 panic("Could not create AIF thread\n");
321 /* Register the shutdown method to only be called post-dump */
322 if ((EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, sc->aac_dev,
323 SHUTDOWN_PRI_DEFAULT)) == NULL)
324 device_printf(sc->aac_dev, "shutdown event registration failed\n");
326 /* Register with CAM for the non-DASD devices */
327 if ((sc->flags & AAC_FLAGS_ENABLE_CAM) != 0)
328 aac_get_bus_info(sc);
334 * Probe for containers, create disks.
337 aac_startup(void *arg)
339 struct aac_softc *sc;
341 struct aac_mntinfo *mi;
342 struct aac_mntinforesp *mir = NULL;
347 sc = (struct aac_softc *)arg;
349 /* disconnect ourselves from the intrhook chain */
350 config_intrhook_disestablish(&sc->aac_ich);
352 aac_alloc_sync_fib(sc, &fib, 0);
353 mi = (struct aac_mntinfo *)&fib->data[0];
355 /* loop over possible containers */
357 /* request information on this container */
358 bzero(mi, sizeof(struct aac_mntinfo));
359 mi->Command = VM_NameServe;
360 mi->MntType = FT_FILESYS;
362 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
363 sizeof(struct aac_mntinfo))) {
364 debug(2, "error probing container %d", i);
368 mir = (struct aac_mntinforesp *)&fib->data[0];
369 aac_add_container(sc, mir, 0);
371 } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS));
373 aac_release_sync_fib(sc);
375 /* poke the bus to actually attach the child devices */
376 if (bus_generic_attach(sc->aac_dev))
377 device_printf(sc->aac_dev, "bus_generic_attach failed\n");
379 /* mark the controller up */
380 sc->aac_state &= ~AAC_STATE_SUSPEND;
382 /* enable interrupts now */
383 AAC_UNMASK_INTERRUPTS(sc);
385 /* enable the timeout watchdog */
386 callout_reset(&sc->aac_watchdog, AAC_PERIODIC_INTERVAL * hz,
391 * Create a device to respresent a new container
394 aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f)
396 struct aac_container *co;
400 * Check container volume type for validity. Note that many of
401 * the possible types may never show up.
403 if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) {
404 MALLOC(co, struct aac_container *, sizeof *co, M_AACBUF,
406 debug(1, "id %x name '%.16s' size %u type %d",
407 mir->MntTable[0].ObjectId,
408 mir->MntTable[0].FileSystemName,
409 mir->MntTable[0].Capacity, mir->MntTable[0].VolType);
411 if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL)
412 device_printf(sc->aac_dev, "device_add_child failed\n");
414 device_set_ivars(child, co);
415 device_set_desc(child, aac_describe_code(aac_container_types,
416 mir->MntTable[0].VolType));
419 bcopy(&mir->MntTable[0], &co->co_mntobj,
420 sizeof(struct aac_mntobj));
421 AAC_LOCK_ACQUIRE(&sc->aac_container_lock);
422 TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link);
423 AAC_LOCK_RELEASE(&sc->aac_container_lock);
428 * Free all of the resources associated with (sc)
430 * Should not be called if the controller is active.
433 aac_free(struct aac_softc *sc)
437 /* remove the control device */
438 if (sc->aac_dev_t != NULL)
439 destroy_dev(sc->aac_dev_t);
441 /* throw away any FIB buffers, discard the FIB DMA tag */
442 if (sc->aac_fibs != NULL)
443 aac_free_commands(sc);
444 if (sc->aac_fib_dmat)
445 bus_dma_tag_destroy(sc->aac_fib_dmat);
447 /* destroy the common area */
448 if (sc->aac_common) {
449 bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap);
450 bus_dmamem_free(sc->aac_common_dmat, sc->aac_common,
451 sc->aac_common_dmamap);
453 if (sc->aac_common_dmat)
454 bus_dma_tag_destroy(sc->aac_common_dmat);
456 /* disconnect the interrupt handler */
458 bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr);
459 if (sc->aac_irq != NULL)
460 bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid,
463 /* destroy data-transfer DMA tag */
464 if (sc->aac_buffer_dmat)
465 bus_dma_tag_destroy(sc->aac_buffer_dmat);
467 /* destroy the parent DMA tag */
468 if (sc->aac_parent_dmat)
469 bus_dma_tag_destroy(sc->aac_parent_dmat);
471 /* release the register window mapping */
472 if (sc->aac_regs_resource != NULL) {
473 bus_release_resource(sc->aac_dev, SYS_RES_MEMORY,
474 sc->aac_regs_rid, sc->aac_regs_resource);
476 cdevsw_remove(&aac_cdevsw, -1, device_get_unit(sc->aac_dev));
480 * Disconnect from the controller completely, in preparation for unload.
483 aac_detach(device_t dev)
485 struct aac_softc *sc;
492 sc = device_get_softc(dev);
494 callout_stop(&sc->aac_watchdog);
496 if (sc->aac_state & AAC_STATE_OPEN)
500 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) {
501 sc->aifflags |= AAC_AIFFLAGS_EXIT;
502 wakeup(sc->aifthread);
503 tsleep(sc->aac_dev, PCATCH, "aacdch", 30 * hz);
506 if (sc->aifflags & AAC_AIFFLAGS_RUNNING)
507 panic("Cannot shutdown AIF thread\n");
509 if ((error = aac_shutdown(dev)))
521 * Bring the controller down to a dormant state and detach all child devices.
523 * This function is called before detach or system shutdown.
525 * Note that we can assume that the bioq on the controller is empty, as we won't
526 * allow shutdown if any device is open.
529 aac_shutdown(device_t dev)
531 struct aac_softc *sc;
533 struct aac_close_command *cc;
538 sc = device_get_softc(dev);
542 sc->aac_state |= AAC_STATE_SUSPEND;
545 * Send a Container shutdown followed by a HostShutdown FIB to the
546 * controller to convince it that we don't want to talk to it anymore.
547 * We've been closed and all I/O completed already
549 device_printf(sc->aac_dev, "shutting down controller...");
551 aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE);
552 cc = (struct aac_close_command *)&fib->data[0];
554 bzero(cc, sizeof(struct aac_close_command));
555 cc->Command = VM_CloseAll;
556 cc->ContainerId = 0xffffffff;
557 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
558 sizeof(struct aac_close_command)))
563 * XXX Issuing this command to the controller makes it shut down
564 * but also keeps it from coming back up without a reset of the
565 * PCI bus. This is not desirable if you are just unloading the
566 * driver module with the intent to reload it later.
568 if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN,
576 AAC_MASK_INTERRUPTS(sc);
583 * Bring the controller to a quiescent state, ready for system suspend.
586 aac_suspend(device_t dev)
588 struct aac_softc *sc;
593 sc = device_get_softc(dev);
597 sc->aac_state |= AAC_STATE_SUSPEND;
599 AAC_MASK_INTERRUPTS(sc);
605 * Bring the controller back to a state ready for operation.
608 aac_resume(device_t dev)
610 struct aac_softc *sc;
614 sc = device_get_softc(dev);
616 sc->aac_state &= ~AAC_STATE_SUSPEND;
617 AAC_UNMASK_INTERRUPTS(sc);
627 struct aac_softc *sc;
629 u_int32_t *resp_queue;
633 sc = (struct aac_softc *)arg;
636 * Optimize the common case of adapter response interrupts.
637 * We must read from the card prior to processing the responses
638 * to ensure the clear is flushed prior to accessing the queues.
639 * Reading the queues from local memory might save us a PCI read.
641 resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE];
642 if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX])
643 reason = AAC_DB_RESPONSE_READY;
645 reason = AAC_GET_ISTATUS(sc);
646 AAC_CLEAR_ISTATUS(sc, reason);
647 (void)AAC_GET_ISTATUS(sc);
649 /* It's not ok to return here because of races with the previous step */
650 if (reason & AAC_DB_RESPONSE_READY)
651 aac_host_response(sc);
653 /* controller wants to talk to the log */
654 if (reason & AAC_DB_PRINTF)
655 aac_print_printf(sc);
657 /* controller has a message for us? */
658 if (reason & AAC_DB_COMMAND_READY) {
659 /* XXX What happens if the thread is already awake? */
660 if (sc->aifflags & AAC_AIFFLAGS_RUNNING) {
661 sc->aifflags |= AAC_AIFFLAGS_PENDING;
662 wakeup(sc->aifthread);
672 * Start as much queued I/O as possible on the controller
675 aac_startio(struct aac_softc *sc)
677 struct aac_command *cm;
683 * Try to get a command that's been put off for lack of
686 cm = aac_dequeue_ready(sc);
689 * Try to build a command off the bio queue (ignore error
693 aac_bio_command(sc, &cm);
699 /* try to give the command to the controller */
700 if (aac_start(cm) == EBUSY) {
701 /* put it on the ready queue for later */
702 aac_requeue_ready(cm);
709 * Deliver a command to the controller; allocate controller resources at the
710 * last moment when possible.
713 aac_start(struct aac_command *cm)
715 struct aac_softc *sc;
722 /* get the command mapped */
725 /* fix up the address values in the FIB */
726 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
727 cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys;
729 /* save a pointer to the command for speedy reverse-lookup */
730 cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical
732 /* put the FIB on the outbound queue */
733 error = aac_enqueue_fib(sc, cm->cm_queue, cm);
738 * Handle notification of one or more FIBs coming from the controller.
741 aac_host_command(struct aac_softc *sc)
749 sc->aifflags |= AAC_AIFFLAGS_RUNNING;
751 while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) {
752 if (!(sc->aifflags & AAC_AIFFLAGS_PENDING))
753 tsleep(sc->aifthread, 0, "aifthd", 15 * hz);
755 sc->aifflags &= ~AAC_AIFFLAGS_PENDING;
757 if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE,
759 break; /* nothing to do */
761 AAC_PRINT_FIB(sc, fib);
763 switch (fib->Header.Command) {
765 aac_handle_aif(sc, fib);
768 device_printf(sc->aac_dev, "unknown command "
769 "from controller\n");
773 /* Return the AIF to the controller. */
774 if ((fib->Header.XferState == 0) ||
775 (fib->Header.StructType != AAC_FIBTYPE_TFIB))
778 if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) {
779 fib->Header.XferState |= AAC_FIBSTATE_DONEHOST;
780 *(AAC_FSAStatus*)fib->data = ST_OK;
782 /* XXX Compute the Size field? */
783 size = fib->Header.Size;
784 if (size > sizeof(struct aac_fib)) {
785 size = sizeof(struct aac_fib);
786 fib->Header.Size = size;
789 * Since we did not generate this command, it
790 * cannot go through the normal
791 * enqueue->startio chain.
793 aac_enqueue_response(sc,
794 AAC_ADAP_NORM_RESP_QUEUE,
799 sc->aifflags &= ~AAC_AIFFLAGS_RUNNING;
802 #if defined(__FreeBSD__) && __FreeBSD_version > 500005
809 * Handle notification of one or more FIBs completed by the controller
812 aac_host_response(struct aac_softc *sc)
814 struct aac_command *cm;
821 /* look for completed FIBs on our queue */
822 if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size,
824 break; /* nothing to do */
826 /* get the command, unmap and queue for later processing */
827 cm = (struct aac_command *)fib->Header.SenderData;
829 AAC_PRINT_FIB(sc, fib);
832 aac_unmap_command(cm); /* XXX defer? */
833 aac_enqueue_complete(cm);
837 /* handle completion processing */
838 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
839 taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete);
846 * Process completed commands.
849 aac_complete(void *context, int pending)
851 struct aac_softc *sc;
852 struct aac_command *cm;
856 sc = (struct aac_softc *)context;
858 /* pull completed commands off the queue */
860 cm = aac_dequeue_complete(sc);
863 cm->cm_flags |= AAC_CMD_COMPLETED;
865 /* is there a completion handler? */
866 if (cm->cm_complete != NULL) {
869 /* assume that someone is sleeping on this command */
874 /* see if we can start some more I/O */
879 * Handle a bio submitted from a disk device.
882 aac_submit_bio(struct bio *bp)
885 struct aac_softc *sc;
889 ad = (struct aac_disk *)bp->bio_dev->si_drv1;
890 sc = ad->ad_controller;
892 /* queue the BIO and try to get some work done */
893 aac_enqueue_bio(sc, bp);
898 * Get a bio and build a command to go with it.
901 aac_bio_command(struct aac_softc *sc, struct aac_command **cmp)
903 struct aac_command *cm;
905 struct aac_blockread *br;
906 struct aac_blockwrite *bw;
912 /* get the resources we will need */
914 if ((bp = aac_dequeue_bio(sc)) == NULL)
916 if (aac_alloc_command(sc, &cm)) /* get a command */
919 /* fill out the command */
920 cm->cm_data = (void *)bp->bio_data;
921 cm->cm_datalen = bp->bio_bcount;
922 cm->cm_complete = aac_bio_complete;
924 cm->cm_timestamp = time_second;
925 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
929 fib->Header.XferState =
930 AAC_FIBSTATE_HOSTOWNED |
931 AAC_FIBSTATE_INITIALISED |
933 AAC_FIBSTATE_FROMHOST |
934 AAC_FIBSTATE_REXPECTED |
937 AAC_FIBSTATE_FAST_RESPONSE;
938 fib->Header.Command = ContainerCommand;
939 fib->Header.Size = sizeof(struct aac_fib_header);
941 /* build the read/write request */
942 ad = (struct aac_disk *)bp->bio_dev->si_drv1;
943 if (BIO_IS_READ(bp)) {
944 br = (struct aac_blockread *)&fib->data[0];
945 br->Command = VM_CtBlockRead;
946 br->ContainerId = ad->ad_container->co_mntobj.ObjectId;
947 br->BlockNumber = bp->bio_pblkno;
948 br->ByteCount = bp->bio_bcount;
949 fib->Header.Size += sizeof(struct aac_blockread);
950 cm->cm_sgtable = &br->SgMap;
951 cm->cm_flags |= AAC_CMD_DATAIN;
953 bw = (struct aac_blockwrite *)&fib->data[0];
954 bw->Command = VM_CtBlockWrite;
955 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId;
956 bw->BlockNumber = bp->bio_pblkno;
957 bw->ByteCount = bp->bio_bcount;
958 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */
959 fib->Header.Size += sizeof(struct aac_blockwrite);
960 cm->cm_flags |= AAC_CMD_DATAOUT;
961 cm->cm_sgtable = &bw->SgMap;
969 aac_enqueue_bio(sc, bp);
971 aac_release_command(cm);
976 * Handle a bio-instigated command that has been completed.
979 aac_bio_complete(struct aac_command *cm)
981 struct aac_blockread_response *brr;
982 struct aac_blockwrite_response *bwr;
984 AAC_FSAStatus status;
986 /* fetch relevant status and then release the command */
987 bp = (struct bio *)cm->cm_private;
988 if (BIO_IS_READ(bp)) {
989 brr = (struct aac_blockread_response *)&cm->cm_fib->data[0];
990 status = brr->Status;
992 bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0];
993 status = bwr->Status;
995 aac_release_command(cm);
997 /* fix up the bio based on status */
998 if (status == ST_OK) {
1001 bp->bio_error = EIO;
1002 bp->bio_flags |= BIO_ERROR;
1003 /* pass an error string out to the disk layer */
1004 bp->bio_driver1 = aac_describe_code(aac_command_status_table,
1011 * Dump a block of data to the controller. If the queue is full, tell the
1012 * caller to hold off and wait for the queue to drain.
1015 aac_dump_enqueue(struct aac_disk *ad, u_int32_t lba, void *data, int dumppages)
1017 struct aac_softc *sc;
1018 struct aac_command *cm;
1019 struct aac_fib *fib;
1020 struct aac_blockwrite *bw;
1022 sc = ad->ad_controller;
1025 if (aac_alloc_command(sc, &cm))
1028 /* fill out the command */
1030 cm->cm_datalen = dumppages * PAGE_SIZE;
1031 cm->cm_complete = NULL;
1032 cm->cm_private = NULL;
1033 cm->cm_timestamp = time_second;
1034 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
1038 fib->Header.XferState =
1039 AAC_FIBSTATE_HOSTOWNED |
1040 AAC_FIBSTATE_INITIALISED |
1041 AAC_FIBSTATE_FROMHOST |
1042 AAC_FIBSTATE_REXPECTED |
1044 fib->Header.Command = ContainerCommand;
1045 fib->Header.Size = sizeof(struct aac_fib_header);
1047 bw = (struct aac_blockwrite *)&fib->data[0];
1048 bw->Command = VM_CtBlockWrite;
1049 bw->ContainerId = ad->ad_container->co_mntobj.ObjectId;
1050 bw->BlockNumber = lba;
1051 bw->ByteCount = dumppages * PAGE_SIZE;
1052 bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */
1053 fib->Header.Size += sizeof(struct aac_blockwrite);
1054 cm->cm_flags |= AAC_CMD_DATAOUT;
1055 cm->cm_sgtable = &bw->SgMap;
1057 return (aac_start(cm));
1061 * Wait for the card's queue to drain when dumping. Also check for monitor
1065 aac_dump_complete(struct aac_softc *sc)
1067 struct aac_fib *fib;
1068 struct aac_command *cm;
1070 u_int32_t pi, ci, fib_size;
1073 reason = AAC_GET_ISTATUS(sc);
1074 if (reason & AAC_DB_RESPONSE_READY) {
1075 AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY);
1077 if (aac_dequeue_fib(sc,
1078 AAC_HOST_NORM_RESP_QUEUE,
1081 cm = (struct aac_command *)
1082 fib->Header.SenderData;
1084 AAC_PRINT_FIB(sc, fib);
1086 aac_remove_busy(cm);
1087 aac_unmap_command(cm);
1088 aac_enqueue_complete(cm);
1089 aac_release_command(cm);
1093 if (reason & AAC_DB_PRINTF) {
1094 AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF);
1095 aac_print_printf(sc);
1097 pi = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][
1098 AAC_PRODUCER_INDEX];
1099 ci = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][
1100 AAC_CONSUMER_INDEX];
1107 * Submit a command to the controller, return when it completes.
1108 * XXX This is very dangerous! If the card has gone out to lunch, we could
1109 * be stuck here forever. At the same time, signals are not caught
1110 * because there is a risk that a signal could wakeup the tsleep before
1111 * the card has a chance to complete the command. The passed in timeout
1112 * is ignored for the same reason. Since there is no way to cancel a
1113 * command in progress, we should probably create a 'dead' queue where
1114 * commands go that have been interrupted/timed-out/etc, that keeps them
1115 * out of the free pool. That way, if the card is just slow, it won't
1116 * spam the memory of a command that has been recycled.
1119 aac_wait_command(struct aac_command *cm, int timeout)
1125 /* Put the command on the ready queue and get things going */
1126 cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
1127 aac_enqueue_ready(cm);
1128 aac_startio(cm->cm_sc);
1130 while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) {
1131 error = tsleep(cm, 0, "aacwait", 0);
1138 *Command Buffer Management
1142 * Allocate a command.
1145 aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp)
1147 struct aac_command *cm;
1151 if ((cm = aac_dequeue_free(sc)) == NULL)
1159 * Release a command back to the freelist.
1162 aac_release_command(struct aac_command *cm)
1166 /* (re)initialise the command/FIB */
1167 cm->cm_sgtable = NULL;
1169 cm->cm_complete = NULL;
1170 cm->cm_private = NULL;
1171 cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY;
1172 cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB;
1173 cm->cm_fib->Header.Flags = 0;
1174 cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib);
1177 * These are duplicated in aac_start to cover the case where an
1178 * intermediate stage may have destroyed them. They're left
1179 * initialised here for debugging purposes only.
1181 cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib;
1182 cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys;
1183 cm->cm_fib->Header.SenderData = 0;
1185 aac_enqueue_free(cm);
1189 * Map helper for command/FIB allocation.
1192 aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1194 struct aac_softc *sc;
1196 sc = (struct aac_softc *)arg;
1200 sc->aac_fibphys = segs[0].ds_addr;
1204 * Allocate and initialise commands/FIBs for this adapter.
1207 aac_alloc_commands(struct aac_softc *sc)
1209 struct aac_command *cm;
1214 /* allocate the FIBs in DMAable memory and load them */
1215 if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs,
1216 BUS_DMA_NOWAIT, &sc->aac_fibmap)) {
1220 bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs,
1221 AAC_FIB_COUNT * sizeof(struct aac_fib),
1222 aac_map_command_helper, sc, 0);
1224 /* initialise constant fields in the command structure */
1225 bzero(sc->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib));
1226 for (i = 0; i < AAC_FIB_COUNT; i++) {
1227 cm = &sc->aac_command[i];
1229 cm->cm_fib = sc->aac_fibs + i;
1230 cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib));
1232 if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap))
1233 aac_release_command(cm);
1239 * Free FIBs owned by this adapter.
1242 aac_free_commands(struct aac_softc *sc)
1248 for (i = 0; i < AAC_FIB_COUNT; i++)
1249 bus_dmamap_destroy(sc->aac_buffer_dmat,
1250 sc->aac_command[i].cm_datamap);
1252 bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap);
1253 bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap);
1257 * Command-mapping helper function - populate this command's s/g table.
1260 aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1262 struct aac_command *cm;
1263 struct aac_fib *fib;
1264 struct aac_sg_table *sg;
1269 cm = (struct aac_command *)arg;
1272 /* find the s/g table */
1273 sg = cm->cm_sgtable;
1275 /* copy into the FIB */
1278 for (i = 0; i < nseg; i++) {
1279 sg->SgEntry[i].SgAddress = segs[i].ds_addr;
1280 sg->SgEntry[i].SgByteCount = segs[i].ds_len;
1282 /* update the FIB size for the s/g count */
1283 fib->Header.Size += nseg * sizeof(struct aac_sg_entry);
1289 * Map a command into controller-visible space.
1292 aac_map_command(struct aac_command *cm)
1294 struct aac_softc *sc;
1300 /* don't map more than once */
1301 if (cm->cm_flags & AAC_CMD_MAPPED)
1304 if (cm->cm_datalen != 0) {
1305 bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap,
1306 cm->cm_data, cm->cm_datalen,
1307 aac_map_command_sg, cm, 0);
1309 if (cm->cm_flags & AAC_CMD_DATAIN)
1310 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1311 BUS_DMASYNC_PREREAD);
1312 if (cm->cm_flags & AAC_CMD_DATAOUT)
1313 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1314 BUS_DMASYNC_PREWRITE);
1316 cm->cm_flags |= AAC_CMD_MAPPED;
1320 * Unmap a command from controller-visible space.
1323 aac_unmap_command(struct aac_command *cm)
1325 struct aac_softc *sc;
1331 if (!(cm->cm_flags & AAC_CMD_MAPPED))
1334 if (cm->cm_datalen != 0) {
1335 if (cm->cm_flags & AAC_CMD_DATAIN)
1336 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1337 BUS_DMASYNC_POSTREAD);
1338 if (cm->cm_flags & AAC_CMD_DATAOUT)
1339 bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap,
1340 BUS_DMASYNC_POSTWRITE);
1342 bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap);
1344 cm->cm_flags &= ~AAC_CMD_MAPPED;
1348 * Hardware Interface
1352 * Initialise the adapter.
1355 aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1357 struct aac_softc *sc;
1361 sc = (struct aac_softc *)arg;
1363 sc->aac_common_busaddr = segs[0].ds_addr;
1367 aac_check_firmware(struct aac_softc *sc)
1369 u_int32_t major, minor, options;
1374 * Retrieve the firmware version numbers. Dell PERC2/QC cards with
1375 * firmware version 1.x are not compatible with this driver.
1377 if (sc->flags & AAC_FLAGS_PERC2QC) {
1378 if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0,
1380 device_printf(sc->aac_dev,
1381 "Error reading firmware version\n");
1385 /* These numbers are stored as ASCII! */
1386 major = (AAC_GET_MAILBOX(sc, 1) & 0xff) - 0x30;
1387 minor = (AAC_GET_MAILBOX(sc, 2) & 0xff) - 0x30;
1389 device_printf(sc->aac_dev,
1390 "Firmware version %d.%d is not supported.\n",
1397 * Retrieve the capabilities/supported options word so we know what
1398 * work-arounds to enable.
1400 if (aac_sync_command(sc, AAC_MONKER_GETINFO, 0, 0, 0, 0, NULL)) {
1401 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n");
1404 options = AAC_GET_MAILBOX(sc, 1);
1405 sc->supported_options = options;
1407 if ((options & AAC_SUPPORTED_4GB_WINDOW) != 0 &&
1408 (sc->flags & AAC_FLAGS_NO4GB) == 0)
1409 sc->flags |= AAC_FLAGS_4GB_WINDOW;
1410 if (options & AAC_SUPPORTED_NONDASD)
1411 sc->flags |= AAC_FLAGS_ENABLE_CAM;
1417 aac_init(struct aac_softc *sc)
1419 struct aac_adapter_init *ip;
1428 * First wait for the adapter to come ready.
1432 code = AAC_GET_FWSTATUS(sc);
1433 if (code & AAC_SELF_TEST_FAILED) {
1434 device_printf(sc->aac_dev, "FATAL: selftest failed\n");
1437 if (code & AAC_KERNEL_PANIC) {
1438 device_printf(sc->aac_dev,
1439 "FATAL: controller kernel panic\n");
1442 if (time_second > (then + AAC_BOOT_TIMEOUT)) {
1443 device_printf(sc->aac_dev,
1444 "FATAL: controller not coming ready, "
1445 "status %x\n", code);
1448 } while (!(code & AAC_UP_AND_RUNNING));
1452 * Create DMA tag for mapping buffers into controller-addressable space.
1454 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1455 1, 0, /* algnmnt, boundary */
1456 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1457 BUS_SPACE_MAXADDR, /* highaddr */
1458 NULL, NULL, /* filter, filterarg */
1459 MAXBSIZE, /* maxsize */
1460 AAC_MAXSGENTRIES, /* nsegments */
1461 MAXBSIZE, /* maxsegsize */
1462 BUS_DMA_ALLOCNOW, /* flags */
1463 &sc->aac_buffer_dmat)) {
1464 device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n");
1469 * Create DMA tag for mapping FIBs into controller-addressable space..
1471 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1472 1, 0, /* algnmnt, boundary */
1473 (sc->flags & AAC_FLAGS_4GB_WINDOW) ?
1474 BUS_SPACE_MAXADDR_32BIT :
1475 0x7fffffff, /* lowaddr */
1476 BUS_SPACE_MAXADDR, /* highaddr */
1477 NULL, NULL, /* filter, filterarg */
1479 sizeof(struct aac_fib), /* maxsize */
1482 sizeof(struct aac_fib), /* maxsegsize */
1483 BUS_DMA_ALLOCNOW, /* flags */
1484 &sc->aac_fib_dmat)) {
1485 device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");;
1490 * Create DMA tag for the common structure and allocate it.
1492 if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */
1493 1, 0, /* algnmnt, boundary */
1494 (sc->flags & AAC_FLAGS_4GB_WINDOW) ?
1495 BUS_SPACE_MAXADDR_32BIT :
1496 0x7fffffff, /* lowaddr */
1497 BUS_SPACE_MAXADDR, /* highaddr */
1498 NULL, NULL, /* filter, filterarg */
1499 8192 + sizeof(struct aac_common), /* maxsize */
1501 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1502 BUS_DMA_ALLOCNOW, /* flags */
1503 &sc->aac_common_dmat)) {
1504 device_printf(sc->aac_dev,
1505 "can't allocate common structure DMA tag\n");
1508 if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common,
1509 BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) {
1510 device_printf(sc->aac_dev, "can't allocate common structure\n");
1514 * Work around a bug in the 2120 and 2200 that cannot DMA commands
1515 * below address 8192 in physical memory.
1516 * XXX If the padding is not needed, can it be put to use instead
1519 bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap,
1520 sc->aac_common, 8192 + sizeof(*sc->aac_common),
1521 aac_common_map, sc, 0);
1523 if (sc->aac_common_busaddr < 8192) {
1525 (struct aac_common *)((uint8_t *)sc->aac_common + 8192);
1526 sc->aac_common_busaddr += 8192;
1528 bzero(sc->aac_common, sizeof(*sc->aac_common));
1530 /* Allocate some FIBs and associated command structs */
1531 if (aac_alloc_commands(sc) != 0)
1535 * Fill in the init structure. This tells the adapter about the
1536 * physical location of various important shared data structures.
1538 ip = &sc->aac_common->ac_init;
1539 ip->InitStructRevision = AAC_INIT_STRUCT_REVISION;
1540 ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION;
1542 ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr +
1543 offsetof(struct aac_common, ac_fibs);
1544 ip->AdapterFibsVirtualAddress = (aac_phys_addr_t)&sc->aac_common->ac_fibs[0];
1545 ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib);
1546 ip->AdapterFibAlign = sizeof(struct aac_fib);
1548 ip->PrintfBufferAddress = sc->aac_common_busaddr +
1549 offsetof(struct aac_common, ac_printf);
1550 ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE;
1552 /* The adapter assumes that pages are 4K in size */
1553 ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE;
1554 ip->HostElapsedSeconds = time_second; /* reset later if invalid */
1557 * Initialise FIB queues. Note that it appears that the layout of the
1558 * indexes and the segmentation of the entries may be mandated by the
1559 * adapter, which is only told about the base of the queue index fields.
1561 * The initial values of the indices are assumed to inform the adapter
1562 * of the sizes of the respective queues, and theoretically it could
1563 * work out the entire layout of the queue structures from this. We
1564 * take the easy route and just lay this area out like everyone else
1567 * The Linux driver uses a much more complex scheme whereby several
1568 * header records are kept for each queue. We use a couple of generic
1569 * list manipulation functions which 'know' the size of each list by
1570 * virtue of a table.
1572 qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN;
1573 qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN;
1574 sc->aac_queues = (struct aac_queue_table *)qaddr;
1575 ip->CommHeaderAddress = sc->aac_common_busaddr +
1576 ((u_int32_t)sc->aac_queues -
1577 (u_int32_t)sc->aac_common);
1578 bzero(sc->aac_queues, sizeof(struct aac_queue_table));
1580 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] =
1581 AAC_HOST_NORM_CMD_ENTRIES;
1582 sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] =
1583 AAC_HOST_NORM_CMD_ENTRIES;
1584 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] =
1585 AAC_HOST_HIGH_CMD_ENTRIES;
1586 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] =
1587 AAC_HOST_HIGH_CMD_ENTRIES;
1588 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] =
1589 AAC_ADAP_NORM_CMD_ENTRIES;
1590 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] =
1591 AAC_ADAP_NORM_CMD_ENTRIES;
1592 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] =
1593 AAC_ADAP_HIGH_CMD_ENTRIES;
1594 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] =
1595 AAC_ADAP_HIGH_CMD_ENTRIES;
1596 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]=
1597 AAC_HOST_NORM_RESP_ENTRIES;
1598 sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]=
1599 AAC_HOST_NORM_RESP_ENTRIES;
1600 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]=
1601 AAC_HOST_HIGH_RESP_ENTRIES;
1602 sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]=
1603 AAC_HOST_HIGH_RESP_ENTRIES;
1604 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]=
1605 AAC_ADAP_NORM_RESP_ENTRIES;
1606 sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]=
1607 AAC_ADAP_NORM_RESP_ENTRIES;
1608 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]=
1609 AAC_ADAP_HIGH_RESP_ENTRIES;
1610 sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]=
1611 AAC_ADAP_HIGH_RESP_ENTRIES;
1612 sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] =
1613 &sc->aac_queues->qt_HostNormCmdQueue[0];
1614 sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] =
1615 &sc->aac_queues->qt_HostHighCmdQueue[0];
1616 sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] =
1617 &sc->aac_queues->qt_AdapNormCmdQueue[0];
1618 sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] =
1619 &sc->aac_queues->qt_AdapHighCmdQueue[0];
1620 sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] =
1621 &sc->aac_queues->qt_HostNormRespQueue[0];
1622 sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] =
1623 &sc->aac_queues->qt_HostHighRespQueue[0];
1624 sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] =
1625 &sc->aac_queues->qt_AdapNormRespQueue[0];
1626 sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] =
1627 &sc->aac_queues->qt_AdapHighRespQueue[0];
1630 * Do controller-type-specific initialisation
1632 switch (sc->aac_hwif) {
1633 case AAC_HWIF_I960RX:
1634 AAC_SETREG4(sc, AAC_RX_ODBR, ~0);
1639 * Give the init structure to the controller.
1641 if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT,
1642 sc->aac_common_busaddr +
1643 offsetof(struct aac_common, ac_init), 0, 0, 0,
1645 device_printf(sc->aac_dev,
1646 "error establishing init structure\n");
1657 * Send a synchronous command to the controller and wait for a result.
1660 aac_sync_command(struct aac_softc *sc, u_int32_t command,
1661 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3,
1669 /* populate the mailbox */
1670 AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3);
1672 /* ensure the sync command doorbell flag is cleared */
1673 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
1675 /* then set it to signal the adapter */
1676 AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND);
1678 /* spin waiting for the command to complete */
1681 if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) {
1682 debug(1, "timed out");
1685 } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND));
1687 /* clear the completion flag */
1688 AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND);
1690 /* get the command status */
1691 status = AAC_GET_MAILBOX(sc, 0);
1698 * Grab the sync fib area.
1701 aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags)
1705 * If the force flag is set, the system is shutting down, or in
1706 * trouble. Ignore the mutex.
1708 if (!(flags & AAC_SYNC_LOCK_FORCE))
1709 AAC_LOCK_ACQUIRE(&sc->aac_sync_lock);
1711 *fib = &sc->aac_common->ac_sync_fib;
1717 * Release the sync fib area.
1720 aac_release_sync_fib(struct aac_softc *sc)
1723 AAC_LOCK_RELEASE(&sc->aac_sync_lock);
1727 * Send a synchronous FIB to the controller and wait for a result.
1730 aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate,
1731 struct aac_fib *fib, u_int16_t datasize)
1735 if (datasize > AAC_FIB_DATASIZE)
1739 * Set up the sync FIB
1741 fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED |
1742 AAC_FIBSTATE_INITIALISED |
1744 fib->Header.XferState |= xferstate;
1745 fib->Header.Command = command;
1746 fib->Header.StructType = AAC_FIBTYPE_TFIB;
1747 fib->Header.Size = sizeof(struct aac_fib) + datasize;
1748 fib->Header.SenderSize = sizeof(struct aac_fib);
1749 fib->Header.SenderFibAddress = (u_int32_t)fib;
1750 fib->Header.ReceiverFibAddress = sc->aac_common_busaddr +
1751 offsetof(struct aac_common,
1755 * Give the FIB to the controller, wait for a response.
1757 if (aac_sync_command(sc, AAC_MONKER_SYNCFIB,
1758 fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) {
1759 debug(2, "IO error");
1767 * Adapter-space FIB queue manipulation
1769 * Note that the queue implementation here is a little funky; neither the PI or
1770 * CI will ever be zero. This behaviour is a controller feature.
1776 {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL},
1777 {AAC_HOST_HIGH_CMD_ENTRIES, 0},
1778 {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY},
1779 {AAC_ADAP_HIGH_CMD_ENTRIES, 0},
1780 {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL},
1781 {AAC_HOST_HIGH_RESP_ENTRIES, 0},
1782 {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY},
1783 {AAC_ADAP_HIGH_RESP_ENTRIES, 0}
1787 * Atomically insert an entry into the nominated queue, returns 0 on success or
1788 * EBUSY if the queue is full.
1790 * Note: it would be more efficient to defer notifying the controller in
1791 * the case where we may be inserting several entries in rapid succession,
1792 * but implementing this usefully may be difficult (it would involve a
1793 * separate queue/notify interface).
1796 aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm)
1805 fib_size = cm->cm_fib->Header.Size;
1806 fib_addr = cm->cm_fib->Header.ReceiverFibAddress;
1810 /* get the producer/consumer indices */
1811 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX];
1812 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX];
1814 /* wrap the queue? */
1815 if (pi >= aac_qinfo[queue].size)
1818 /* check for queue full */
1819 if ((pi + 1) == ci) {
1824 /* populate queue entry */
1825 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size;
1826 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr;
1828 /* update producer index */
1829 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1;
1832 * To avoid a race with its completion interrupt, place this command on
1833 * the busy queue prior to advertising it to the controller.
1835 aac_enqueue_busy(cm);
1837 /* notify the adapter if we know how */
1838 if (aac_qinfo[queue].notify != 0)
1839 AAC_QNOTIFY(sc, aac_qinfo[queue].notify);
1849 * Atomically remove one entry from the nominated queue, returns 0 on
1850 * success or ENOENT if the queue is empty.
1853 aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size,
1854 struct aac_fib **fib_addr)
1864 /* get the producer/consumer indices */
1865 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX];
1866 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX];
1868 /* check for queue empty */
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;
1970 struct aac_command *cm;
1974 /* simulate an interrupt to handle possibly-missed interrupts */
1976 * XXX This was done to work around another bug which has since been
1977 * fixed. It is dangerous anyways because you don't want multiple
1978 * threads in the interrupt handler at the same time! If calling
1979 * is deamed neccesary in the future, proper mutexes must be used.
1985 /* kick the I/O queue to restart it in the case of deadlock */
1990 * 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 /* reset the timer for next time */
2008 callout_reset(&sc->aac_watchdog, AAC_PERIODIC_INTERVAL * hz,
2013 * Interface Function Vectors
2017 * Read the current firmware status word.
2020 aac_sa_get_fwstatus(struct aac_softc *sc)
2024 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS));
2028 aac_rx_get_fwstatus(struct aac_softc *sc)
2032 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS));
2036 aac_fa_get_fwstatus(struct aac_softc *sc)
2042 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS);
2047 * Notify the controller of a change in a given queue
2051 aac_sa_qnotify(struct aac_softc *sc, int qbit)
2055 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit);
2059 aac_rx_qnotify(struct aac_softc *sc, int qbit)
2063 AAC_SETREG4(sc, AAC_RX_IDBR, qbit);
2067 aac_fa_qnotify(struct aac_softc *sc, int qbit)
2071 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit);
2076 * Get the interrupt reason bits
2079 aac_sa_get_istatus(struct aac_softc *sc)
2083 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0));
2087 aac_rx_get_istatus(struct aac_softc *sc)
2091 return(AAC_GETREG4(sc, AAC_RX_ODBR));
2095 aac_fa_get_istatus(struct aac_softc *sc)
2101 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0);
2106 * Clear some interrupt reason bits
2109 aac_sa_clear_istatus(struct aac_softc *sc, int mask)
2113 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask);
2117 aac_rx_clear_istatus(struct aac_softc *sc, int mask)
2121 AAC_SETREG4(sc, AAC_RX_ODBR, mask);
2125 aac_fa_clear_istatus(struct aac_softc *sc, int mask)
2129 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask);
2134 * Populate the mailbox and set the command word
2137 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command,
2138 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2142 AAC_SETREG4(sc, AAC_SA_MAILBOX, command);
2143 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0);
2144 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1);
2145 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2);
2146 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3);
2150 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command,
2151 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2155 AAC_SETREG4(sc, AAC_RX_MAILBOX, command);
2156 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0);
2157 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1);
2158 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2);
2159 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3);
2163 aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command,
2164 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
2168 AAC_SETREG4(sc, AAC_FA_MAILBOX, command);
2170 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0);
2172 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1);
2174 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2);
2176 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3);
2181 * Fetch the immediate command status word
2184 aac_sa_get_mailbox(struct aac_softc *sc, int mb)
2188 return(AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4)));
2192 aac_rx_get_mailbox(struct aac_softc *sc, int mb)
2196 return(AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4)));
2200 aac_fa_get_mailbox(struct aac_softc *sc, int mb)
2206 val = AAC_GETREG4(sc, AAC_FA_MAILBOX + (mb * 4));
2211 * Set/clear interrupt masks
2214 aac_sa_set_interrupts(struct aac_softc *sc, int enable)
2216 debug(2, "%sable interrupts", enable ? "en" : "dis");
2219 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
2221 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0);
2226 aac_rx_set_interrupts(struct aac_softc *sc, int enable)
2228 debug(2, "%sable interrupts", enable ? "en" : "dis");
2231 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS);
2233 AAC_SETREG4(sc, AAC_RX_OIMR, ~0);
2238 aac_fa_set_interrupts(struct aac_softc *sc, int enable)
2240 debug(2, "%sable interrupts", enable ? "en" : "dis");
2243 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
2246 AAC_SETREG2((sc), AAC_FA_MASK0, ~0);
2252 * Debugging and Diagnostics
2256 * Print some information about the controller.
2259 aac_describe_controller(struct aac_softc *sc)
2261 struct aac_fib *fib;
2262 struct aac_adapter_info *info;
2266 aac_alloc_sync_fib(sc, &fib, 0);
2269 if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) {
2270 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n");
2271 aac_release_sync_fib(sc);
2274 info = (struct aac_adapter_info *)&fib->data[0];
2276 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n",
2277 aac_describe_code(aac_cpu_variant, info->CpuVariant),
2278 info->ClockSpeed, info->BufferMem / (1024 * 1024),
2279 aac_describe_code(aac_battery_platform,
2280 info->batteryPlatform));
2282 /* save the kernel revision structure for later use */
2283 sc->aac_revision = info->KernelRevision;
2284 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n",
2285 info->KernelRevision.external.comp.major,
2286 info->KernelRevision.external.comp.minor,
2287 info->KernelRevision.external.comp.dash,
2288 info->KernelRevision.buildNumber,
2289 (u_int32_t)(info->SerialNumber & 0xffffff));
2291 aac_release_sync_fib(sc);
2293 if (1 || bootverbose) {
2294 device_printf(sc->aac_dev, "Supported Options=%b\n",
2295 sc->supported_options,
2314 * Look up a text description of a numeric error code and return a pointer to
2318 aac_describe_code(struct aac_code_lookup *table, u_int32_t code)
2322 for (i = 0; table[i].string != NULL; i++)
2323 if (table[i].code == code)
2324 return(table[i].string);
2325 return(table[i + 1].string);
2329 * Management Interface
2333 aac_open(dev_t dev, int flags, int fmt, d_thread_t *td)
2335 struct aac_softc *sc;
2341 /* Check to make sure the device isn't already open */
2342 if (sc->aac_state & AAC_STATE_OPEN) {
2345 sc->aac_state |= AAC_STATE_OPEN;
2351 aac_close(dev_t dev, int flags, int fmt, d_thread_t *td)
2353 struct aac_softc *sc;
2359 /* Mark this unit as no longer open */
2360 sc->aac_state &= ~AAC_STATE_OPEN;
2366 aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td)
2368 struct aac_softc *sc = dev->si_drv1;
2374 if (cmd == AACIO_STATS) {
2375 union aac_statrequest *as = (union aac_statrequest *)arg;
2377 switch (as->as_item) {
2383 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat,
2384 sizeof(struct aac_qstat));
2393 arg = *(caddr_t *)arg;
2396 /* AACIO_STATS already handled above */
2397 case FSACTL_SENDFIB:
2398 debug(1, "FSACTL_SENDFIB");
2399 error = aac_ioctl_sendfib(sc, arg);
2401 case FSACTL_AIF_THREAD:
2402 debug(1, "FSACTL_AIF_THREAD");
2405 case FSACTL_OPEN_GET_ADAPTER_FIB:
2406 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB");
2408 * Pass the caller out an AdapterFibContext.
2410 * Note that because we only support one opener, we
2411 * basically ignore this. Set the caller's context to a magic
2412 * number just in case.
2414 * The Linux code hands the driver a pointer into kernel space,
2415 * and then trusts it when the caller hands it back. Aiee!
2416 * Here, we give it the proc pointer of the per-adapter aif
2417 * thread. It's only used as a sanity check in other calls.
2419 i = (int)sc->aifthread;
2420 error = copyout(&i, arg, sizeof(i));
2422 case FSACTL_GET_NEXT_ADAPTER_FIB:
2423 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB");
2424 error = aac_getnext_aif(sc, arg);
2426 case FSACTL_CLOSE_GET_ADAPTER_FIB:
2427 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB");
2428 /* don't do anything here */
2430 case FSACTL_MINIPORT_REV_CHECK:
2431 debug(1, "FSACTL_MINIPORT_REV_CHECK");
2432 error = aac_rev_check(sc, arg);
2434 case FSACTL_QUERY_DISK:
2435 debug(1, "FSACTL_QUERY_DISK");
2436 error = aac_query_disk(sc, arg);
2438 case FSACTL_DELETE_DISK:
2440 * We don't trust the underland to tell us when to delete a
2441 * container, rather we rely on an AIF coming from the
2447 debug(1, "unsupported cmd 0x%lx\n", cmd);
2455 aac_poll(dev_t dev, int poll_events, d_thread_t *td)
2457 struct aac_softc *sc;
2463 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2464 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) {
2465 if (sc->aac_aifq_tail != sc->aac_aifq_head)
2466 revents |= poll_events & (POLLIN | POLLRDNORM);
2468 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2471 if (poll_events & (POLLIN | POLLRDNORM))
2472 selrecord(td, &sc->rcv_select);
2479 * Send a FIB supplied from userspace
2482 aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib)
2484 struct aac_command *cm;
2494 if (aac_alloc_command(sc, &cm)) {
2500 * Fetch the FIB header, then re-copy to get data as well.
2502 if ((error = copyin(ufib, cm->cm_fib,
2503 sizeof(struct aac_fib_header))) != 0)
2505 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header);
2506 if (size > sizeof(struct aac_fib)) {
2507 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n",
2508 size, sizeof(struct aac_fib));
2509 size = sizeof(struct aac_fib);
2511 if ((error = copyin(ufib, cm->cm_fib, size)) != 0)
2513 cm->cm_fib->Header.Size = size;
2514 cm->cm_timestamp = time_second;
2517 * Pass the FIB to the controller, wait for it to complete.
2519 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */
2520 printf("aac_wait_command return %d\n", error);
2525 * Copy the FIB and data back out to the caller.
2527 size = cm->cm_fib->Header.Size;
2528 if (size > sizeof(struct aac_fib)) {
2529 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n",
2530 size, sizeof(struct aac_fib));
2531 size = sizeof(struct aac_fib);
2533 error = copyout(cm->cm_fib, ufib, size);
2537 aac_release_command(cm);
2543 * Handle an AIF sent to us by the controller; queue it for later reference.
2544 * If the queue fills up, then drop the older entries.
2547 aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib)
2549 struct aac_aif_command *aif;
2550 struct aac_container *co, *co_next;
2551 struct aac_mntinfo *mi;
2552 struct aac_mntinforesp *mir = NULL;
2555 int added = 0, i = 0;
2559 aif = (struct aac_aif_command*)&fib->data[0];
2560 aac_print_aif(sc, aif);
2562 /* Is it an event that we should care about? */
2563 switch (aif->command) {
2564 case AifCmdEventNotify:
2565 switch (aif->data.EN.type) {
2566 case AifEnAddContainer:
2567 case AifEnDeleteContainer:
2569 * A container was added or deleted, but the message
2570 * doesn't tell us anything else! Re-enumerate the
2571 * containers and sort things out.
2573 aac_alloc_sync_fib(sc, &fib, 0);
2574 mi = (struct aac_mntinfo *)&fib->data[0];
2577 * Ask the controller for its containers one at
2579 * XXX What if the controller's list changes
2580 * midway through this enumaration?
2581 * XXX This should be done async.
2583 bzero(mi, sizeof(struct aac_mntinfo));
2584 mi->Command = VM_NameServe;
2585 mi->MntType = FT_FILESYS;
2587 rsize = sizeof(mir);
2588 if (aac_sync_fib(sc, ContainerCommand, 0, fib,
2589 sizeof(struct aac_mntinfo))) {
2590 debug(2, "Error probing container %d\n",
2594 mir = (struct aac_mntinforesp *)&fib->data[0];
2596 * Check the container against our list.
2597 * co->co_found was already set to 0 in a
2600 if ((mir->Status == ST_OK) &&
2601 (mir->MntTable[0].VolType != CT_NONE)) {
2604 &sc->aac_container_tqh,
2606 if (co->co_mntobj.ObjectId ==
2607 mir->MntTable[0].ObjectId) {
2614 * If the container matched, continue
2623 * This is a new container. Do all the
2624 * appropriate things to set it up. */
2625 aac_add_container(sc, mir, 1);
2629 } while ((i < mir->MntRespCount) &&
2630 (i < AAC_MAX_CONTAINERS));
2631 aac_release_sync_fib(sc);
2634 * Go through our list of containers and see which ones
2635 * were not marked 'found'. Since the controller didn't
2636 * list them they must have been deleted. Do the
2637 * appropriate steps to destroy the device. Also reset
2638 * the co->co_found field.
2640 co = TAILQ_FIRST(&sc->aac_container_tqh);
2641 while (co != NULL) {
2642 if (co->co_found == 0) {
2643 device_delete_child(sc->aac_dev,
2645 co_next = TAILQ_NEXT(co, co_link);
2646 AAC_LOCK_ACQUIRE(&sc->
2647 aac_container_lock);
2648 TAILQ_REMOVE(&sc->aac_container_tqh, co,
2650 AAC_LOCK_RELEASE(&sc->
2651 aac_container_lock);
2656 co = TAILQ_NEXT(co, co_link);
2660 /* Attach the newly created containers */
2662 bus_generic_attach(sc->aac_dev);
2674 /* Copy the AIF data to the AIF queue for ioctl retrieval */
2675 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2676 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH;
2677 if (next != sc->aac_aifq_tail) {
2678 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command));
2679 sc->aac_aifq_head = next;
2681 /* On the off chance that someone is sleeping for an aif... */
2682 if (sc->aac_state & AAC_STATE_AIF_SLEEPER)
2683 wakeup(sc->aac_aifq);
2684 /* token may have been lost */
2685 /* Wakeup any poll()ers */
2686 selwakeup(&sc->rcv_select);
2687 /* token may have been lost */
2689 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2695 * Return the Revision of the driver to userspace and check to see if the
2696 * userspace app is possibly compatible. This is extremely bogus since
2697 * our driver doesn't follow Adaptec's versioning system. Cheat by just
2698 * returning what the card reported.
2701 aac_rev_check(struct aac_softc *sc, caddr_t udata)
2703 struct aac_rev_check rev_check;
2704 struct aac_rev_check_resp rev_check_resp;
2710 * Copyin the revision struct from userspace
2712 if ((error = copyin(udata, (caddr_t)&rev_check,
2713 sizeof(struct aac_rev_check))) != 0) {
2717 debug(2, "Userland revision= %d\n",
2718 rev_check.callingRevision.buildNumber);
2721 * Doctor up the response struct.
2723 rev_check_resp.possiblyCompatible = 1;
2724 rev_check_resp.adapterSWRevision.external.ul =
2725 sc->aac_revision.external.ul;
2726 rev_check_resp.adapterSWRevision.buildNumber =
2727 sc->aac_revision.buildNumber;
2729 return(copyout((caddr_t)&rev_check_resp, udata,
2730 sizeof(struct aac_rev_check_resp)));
2734 * Pass the caller the next AIF in their queue
2737 aac_getnext_aif(struct aac_softc *sc, caddr_t arg)
2739 struct get_adapter_fib_ioctl agf;
2744 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) {
2747 * Check the magic number that we gave the caller.
2749 if (agf.AdapterFibContext != (int)sc->aifthread) {
2754 error = aac_return_aif(sc, agf.AifFib);
2756 if ((error == EAGAIN) && (agf.Wait)) {
2757 sc->aac_state |= AAC_STATE_AIF_SLEEPER;
2758 while (error == EAGAIN) {
2759 error = tsleep(sc->aac_aifq,
2760 PCATCH, "aacaif", 0);
2762 error = aac_return_aif(sc,
2765 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER;
2774 * Hand the next AIF off the top of the queue out to userspace.
2776 * YYY token could be lost during copyout
2779 aac_return_aif(struct aac_softc *sc, caddr_t uptr)
2785 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock);
2786 if (sc->aac_aifq_tail == sc->aac_aifq_head) {
2789 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr,
2790 sizeof(struct aac_aif_command));
2792 printf("aac_return_aif: copyout returned %d\n", error);
2794 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) %
2797 AAC_LOCK_RELEASE(&sc->aac_aifq_lock);
2802 * Give the userland some information about the container. The AAC arch
2803 * expects the driver to be a SCSI passthrough type driver, so it expects
2804 * the containers to have b:t:l numbers. Fake it.
2807 aac_query_disk(struct aac_softc *sc, caddr_t uptr)
2809 struct aac_query_disk query_disk;
2810 struct aac_container *co;
2811 struct aac_disk *disk;
2818 error = copyin(uptr, (caddr_t)&query_disk,
2819 sizeof(struct aac_query_disk));
2823 id = query_disk.ContainerNumber;
2827 AAC_LOCK_ACQUIRE(&sc->aac_container_lock);
2828 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) {
2829 if (co->co_mntobj.ObjectId == id)
2834 query_disk.Valid = 0;
2835 query_disk.Locked = 0;
2836 query_disk.Deleted = 1; /* XXX is this right? */
2838 disk = device_get_softc(co->co_disk);
2839 query_disk.Valid = 1;
2841 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0;
2842 query_disk.Deleted = 0;
2843 query_disk.Bus = device_get_unit(sc->aac_dev);
2844 query_disk.Target = disk->unit;
2846 query_disk.UnMapped = 0;
2847 bcopy(disk->ad_dev_t->si_name,
2848 &query_disk.diskDeviceName[0], 10);
2850 AAC_LOCK_RELEASE(&sc->aac_container_lock);
2852 error = copyout((caddr_t)&query_disk, uptr,
2853 sizeof(struct aac_query_disk));
2859 aac_get_bus_info(struct aac_softc *sc)
2861 struct aac_fib *fib;
2862 struct aac_ctcfg *c_cmd;
2863 struct aac_ctcfg_resp *c_resp;
2864 struct aac_vmioctl *vmi;
2865 struct aac_vmi_businf_resp *vmi_resp;
2866 struct aac_getbusinf businfo;
2867 struct aac_cam_inf *caminf;
2869 int i, found, error;
2871 aac_alloc_sync_fib(sc, &fib, 0);
2872 c_cmd = (struct aac_ctcfg *)&fib->data[0];
2873 bzero(c_cmd, sizeof(struct aac_ctcfg));
2875 c_cmd->Command = VM_ContainerConfig;
2876 c_cmd->cmd = CT_GET_SCSI_METHOD;
2879 error = aac_sync_fib(sc, ContainerCommand, 0, fib,
2880 sizeof(struct aac_ctcfg));
2882 device_printf(sc->aac_dev, "Error %d sending "
2883 "VM_ContainerConfig command\n", error);
2884 aac_release_sync_fib(sc);
2888 c_resp = (struct aac_ctcfg_resp *)&fib->data[0];
2889 if (c_resp->Status != ST_OK) {
2890 device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n",
2892 aac_release_sync_fib(sc);
2896 sc->scsi_method_id = c_resp->param;
2898 vmi = (struct aac_vmioctl *)&fib->data[0];
2899 bzero(vmi, sizeof(struct aac_vmioctl));
2901 vmi->Command = VM_Ioctl;
2902 vmi->ObjType = FT_DRIVE;
2903 vmi->MethId = sc->scsi_method_id;
2905 vmi->IoctlCmd = GetBusInfo;
2907 error = aac_sync_fib(sc, ContainerCommand, 0, fib,
2908 sizeof(struct aac_vmioctl));
2910 device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n",
2912 aac_release_sync_fib(sc);
2916 vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0];
2917 if (vmi_resp->Status != ST_OK) {
2918 debug(1, "VM_Ioctl returned %d\n", vmi_resp->Status);
2919 aac_release_sync_fib(sc);
2923 bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf));
2924 aac_release_sync_fib(sc);
2927 for (i = 0; i < businfo.BusCount; i++) {
2928 if (businfo.BusValid[i] != AAC_BUS_VALID)
2931 MALLOC(caminf, struct aac_cam_inf *,
2932 sizeof(struct aac_cam_inf), M_AACBUF, M_INTWAIT | M_ZERO);
2934 child = device_add_child(sc->aac_dev, "aacp", -1);
2935 if (child == NULL) {
2936 device_printf(sc->aac_dev, "device_add_child failed\n");
2940 caminf->TargetsPerBus = businfo.TargetsPerBus;
2941 caminf->BusNumber = i;
2942 caminf->InitiatorBusId = businfo.InitiatorBusId[i];
2943 caminf->aac_sc = sc;
2945 device_set_ivars(child, caminf);
2946 device_set_desc(child, "SCSI Passthrough Bus");
2952 bus_generic_attach(sc->aac_dev);