2 * Copyright (c) 1999,2000 Michael Smith
3 * Copyright (c) 2000 BSDi
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * Copyright (c) 2002 Eric Moore
28 * Copyright (c) 2002 LSI Logic Corporation
29 * All rights reserved.
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
34 * 1. Redistributions of source code must retain the above copyright
35 * notice, this list of conditions and the following disclaimer.
36 * 2. Redistributions in binary form must reproduce the above copyright
37 * notice, this list of conditions and the following disclaimer in the
38 * documentation and/or other materials provided with the distribution.
39 * 3. The party using or redistributing the source code and binary forms
40 * agrees to the disclaimer below and the terms and conditions set forth
43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * $FreeBSD: src/sys/dev/amr/amr.c,v 1.7.2.13 2003/01/15 13:41:18 emoore Exp $
56 * $DragonFly: src/sys/dev/raid/amr/amr.c,v 1.14 2005/02/04 02:55:46 dillon Exp $
60 * Driver for the AMI MegaRaid family of controllers.
63 #include <sys/param.h>
64 #include <sys/systm.h>
65 #include <sys/malloc.h>
66 #include <sys/kernel.h>
68 #include "amr_compat.h"
71 #include <sys/devicestat.h>
75 #include <machine/bus_memio.h>
76 #include <machine/bus_pio.h>
77 #include <machine/bus.h>
78 #include <machine/resource.h>
81 #include <bus/pci/pcireg.h>
82 #include <bus/pci/pcivar.h>
87 #define AMR_DEFINE_TABLES
88 #include "amr_tables.h"
90 #define AMR_CDEV_MAJOR 132
92 static d_open_t amr_open;
93 static d_close_t amr_close;
94 static d_ioctl_t amr_ioctl;
96 static struct cdevsw amr_cdevsw = {
98 /* maj */ AMR_CDEV_MAJOR,
104 /* close */ amr_close,
107 /* ioctl */ amr_ioctl,
110 /* strategy */ nostrategy,
116 * Initialisation, bus interface.
118 static void amr_startup(void *arg);
123 static int amr_query_controller(struct amr_softc *sc);
124 static void *amr_enquiry(struct amr_softc *sc, size_t bufsize,
125 u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual);
126 static void amr_completeio(struct amr_command *ac);
127 static int amr_support_ext_cdb(struct amr_softc *sc);
130 * Command buffer allocation.
132 static void amr_alloccmd_cluster(struct amr_softc *sc);
133 static void amr_freecmd_cluster(struct amr_command_cluster *acc);
136 * Command processing.
138 static int amr_bio_command(struct amr_softc *sc, struct amr_command **acp);
139 static int amr_wait_command(struct amr_command *ac);
140 static int amr_getslot(struct amr_command *ac);
141 static void amr_mapcmd(struct amr_command *ac);
142 static void amr_unmapcmd(struct amr_command *ac);
143 static int amr_start(struct amr_command *ac);
144 static void amr_complete(void *context, int pending);
149 static void amr_periodic(void *data);
152 * Interface-specific shims
154 static int amr_quartz_submit_command(struct amr_softc *sc);
155 static int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
156 static int amr_quartz_poll_command(struct amr_command *ac);
158 static int amr_std_submit_command(struct amr_softc *sc);
159 static int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
160 static int amr_std_poll_command(struct amr_command *ac);
161 static void amr_std_attach_mailbox(struct amr_softc *sc);
163 #ifdef AMR_BOARD_INIT
164 static int amr_quartz_init(struct amr_softc *sc);
165 static int amr_std_init(struct amr_softc *sc);
171 static void amr_describe_controller(struct amr_softc *sc);
174 static void amr_printcommand(struct amr_command *ac);
178 DECLARE_DUMMY_MODULE(amr);
180 /********************************************************************************
181 ********************************************************************************
183 ********************************************************************************
184 ********************************************************************************/
186 /********************************************************************************
187 ********************************************************************************
189 ********************************************************************************
190 ********************************************************************************/
192 /********************************************************************************
193 * Initialise the controller and softc.
196 amr_attach(struct amr_softc *sc)
202 * Initialise per-controller queues.
204 TAILQ_INIT(&sc->amr_completed);
205 TAILQ_INIT(&sc->amr_freecmds);
206 TAILQ_INIT(&sc->amr_cmd_clusters);
207 TAILQ_INIT(&sc->amr_ready);
208 bioq_init(&sc->amr_bioq);
210 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
212 * Initialise command-completion task.
214 TASK_INIT(&sc->amr_task_complete, 0, amr_complete, sc);
217 debug(2, "queue init done");
220 * Configure for this controller type.
222 if (AMR_IS_QUARTZ(sc)) {
223 sc->amr_submit_command = amr_quartz_submit_command;
224 sc->amr_get_work = amr_quartz_get_work;
225 sc->amr_poll_command = amr_quartz_poll_command;
227 sc->amr_submit_command = amr_std_submit_command;
228 sc->amr_get_work = amr_std_get_work;
229 sc->amr_poll_command = amr_std_poll_command;
230 amr_std_attach_mailbox(sc);;
233 #ifdef AMR_BOARD_INIT
234 if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc))))
239 * Quiz controller for features and limits.
241 if (amr_query_controller(sc))
244 debug(2, "controller query complete");
247 * Attach our 'real' SCSI channels to CAM.
249 if (amr_cam_attach(sc))
251 debug(2, "CAM attach done");
254 * Create the control device.
256 cdevsw_add(&amr_cdevsw, -1, device_get_unit(sc->amr_dev));
257 sc->amr_dev_t = make_dev(&amr_cdevsw, device_get_unit(sc->amr_dev),
258 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
259 "amr%d", device_get_unit(sc->amr_dev));
260 sc->amr_dev_t->si_drv1 = sc;
261 reference_dev(sc->amr_dev_t);
264 * Schedule ourselves to bring the controller up once interrupts are
267 bzero(&sc->amr_ich, sizeof(struct intr_config_hook));
268 sc->amr_ich.ich_func = amr_startup;
269 sc->amr_ich.ich_arg = sc;
270 sc->amr_ich.ich_desc = "amr";
271 if (config_intrhook_establish(&sc->amr_ich) != 0) {
272 device_printf(sc->amr_dev, "can't establish configuration hook\n");
277 * Print a little information about the controller.
279 amr_describe_controller(sc);
281 debug(2, "attach complete");
285 /********************************************************************************
286 * Locate disk resources and attach children to them.
289 amr_startup(void *arg)
291 struct amr_softc *sc = (struct amr_softc *)arg;
292 struct amr_logdrive *dr;
296 callout_init(&sc->amr_timeout);
298 /* pull ourselves off the intrhook chain */
299 config_intrhook_disestablish(&sc->amr_ich);
301 /* get up-to-date drive information */
302 if (amr_query_controller(sc)) {
303 device_printf(sc->amr_dev, "can't scan controller for drives\n");
307 /* iterate over available drives */
308 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
309 /* are we already attached to this drive? */
310 if (dr->al_disk == 0) {
311 /* generate geometry information */
312 if (dr->al_size > 0x200000) { /* extended translation? */
319 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
321 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
322 if (dr->al_disk == 0)
323 device_printf(sc->amr_dev, "device_add_child failed\n");
324 device_set_ivars(dr->al_disk, dr);
328 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
329 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
331 /* mark controller back up */
332 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
334 /* interrupts will be enabled before we do anything more */
335 sc->amr_state |= AMR_STATE_INTEN;
338 * Start the timeout routine.
340 /* callout_reset(&sc->amr_timeout, hz, amr_periodic, sc); */
345 /*******************************************************************************
346 * Free resources associated with a controller instance
349 amr_free(struct amr_softc *sc)
351 struct amr_command_cluster *acc;
353 /* detach from CAM */
356 /* cancel status timeout */
357 callout_stop(&sc->amr_timeout);
359 /* throw away any command buffers */
360 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
361 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
362 amr_freecmd_cluster(acc);
365 /* destroy control device */
366 if( sc->amr_dev_t != (dev_t)NULL)
367 destroy_dev(sc->amr_dev_t);
368 cdevsw_remove(&amr_cdevsw, -1, device_get_unit(sc->amr_dev));
371 /*******************************************************************************
372 * Receive a bio structure from a child device and queue it on a particular
373 * disk resource, then poke the disk resource to start as much work as it can.
376 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
380 amr_enqueue_bio(sc, bio);
385 /********************************************************************************
386 * Accept an open operation on the control device.
389 amr_open(dev_t dev, int flags, int fmt, d_thread_t *td)
391 int unit = minor(dev);
392 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
396 sc->amr_state |= AMR_STATE_OPEN;
400 /********************************************************************************
401 * Accept the last close on the control device.
404 amr_close(dev_t dev, int flags, int fmt, d_thread_t *td)
406 int unit = minor(dev);
407 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
411 sc->amr_state &= ~AMR_STATE_OPEN;
415 /********************************************************************************
416 * Handle controller-specific control operations.
419 amr_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *td)
421 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
422 int *arg = (int *)addr;
423 struct amr_user_ioctl *au = (struct amr_user_ioctl *)addr;
424 struct amr_command *ac;
425 struct amr_mailbox_ioctl *mbi;
426 struct amr_passthrough *ap;
439 debug(1, "AMR_IO_VERSION");
440 *arg = AMR_IO_VERSION_NUMBER;
444 debug(1, "AMR_IO_COMMAND 0x%x", au->au_cmd[0]);
445 /* handle inbound data buffer */
446 if (au->au_length != 0) {
447 if ((dp = malloc(au->au_length, M_DEVBUF, M_WAITOK)) == NULL) {
451 if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0)
453 debug(2, "copyin %ld bytes from %p -> %p", au->au_length, au->au_buffer, dp);
456 if ((ac = amr_alloccmd(sc)) == NULL) {
461 /* handle SCSI passthrough command */
462 if (au->au_cmd[0] == AMR_CMD_PASS) {
463 if ((ap = malloc(sizeof(*ap), M_DEVBUF, M_WAITOK | M_ZERO)) == NULL) {
469 ap->ap_cdb_length = au->au_cmd[2];
470 bcopy(&au->au_cmd[3], &ap->ap_cdb[0], ap->ap_cdb_length);
472 /* build passthrough */
473 ap->ap_timeout = au->au_cmd[ap->ap_cdb_length + 3] & 0x07;
474 ap->ap_ars = (au->au_cmd[ap->ap_cdb_length + 3] & 0x08) ? 1 : 0;
475 ap->ap_islogical = (au->au_cmd[ap->ap_cdb_length + 3] & 0x80) ? 1 : 0;
476 ap->ap_logical_drive_no = au->au_cmd[ap->ap_cdb_length + 4];
477 ap->ap_channel = au->au_cmd[ap->ap_cdb_length + 5];
478 ap->ap_scsi_id = au->au_cmd[ap->ap_cdb_length + 6];
479 ap->ap_request_sense_length = 14;
480 ap->ap_data_transfer_length = au->au_length;
481 /* XXX what about the request-sense area? does the caller want it? */
485 ac->ac_length = sizeof(*ap);
486 ac->ac_flags |= AMR_CMD_DATAOUT;
487 ac->ac_ccb_data = dp;
488 ac->ac_ccb_length = au->au_length;
489 if (au->au_direction & AMR_IO_READ)
490 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
491 if (au->au_direction & AMR_IO_WRITE)
492 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
494 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
497 /* direct command to controller */
498 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
500 /* copy pertinent mailbox items */
501 mbi->mb_command = au->au_cmd[0];
502 mbi->mb_channel = au->au_cmd[1];
503 mbi->mb_param = au->au_cmd[2];
504 mbi->mb_pad[0] = au->au_cmd[3];
505 mbi->mb_drive = au->au_cmd[4];
507 /* build the command */
509 ac->ac_length = au->au_length;
510 if (au->au_direction & AMR_IO_READ)
511 ac->ac_flags |= AMR_CMD_DATAIN;
512 if (au->au_direction & AMR_IO_WRITE)
513 ac->ac_flags |= AMR_CMD_DATAOUT;
516 /* run the command */
517 if ((error = amr_wait_command(ac)) != 0)
520 /* copy out data and set status */
521 if (au->au_length != 0)
522 error = copyout(dp, au->au_buffer, au->au_length);
523 debug(2, "copyout %ld bytes from %p -> %p", au->au_length, dp, au->au_buffer);
525 debug(2, "%16d", (int)dp);
526 au->au_status = ac->ac_status;
530 debug(1, "unknown ioctl 0x%lx", cmd);
544 /********************************************************************************
545 ********************************************************************************
547 ********************************************************************************
548 ********************************************************************************/
550 /********************************************************************************
551 * Perform a periodic check of the controller status
554 amr_periodic(void *data)
556 struct amr_softc *sc = (struct amr_softc *)data;
560 /* XXX perform periodic status checks here */
562 /* compensate for missed interrupts */
566 callout_reset(&sc->amr_timeout, hz, amr_periodic, sc);
569 /********************************************************************************
570 ********************************************************************************
572 ********************************************************************************
573 ********************************************************************************/
575 /********************************************************************************
576 * Interrogate the controller for the operational parameters we require.
579 amr_query_controller(struct amr_softc *sc)
581 struct amr_enquiry3 *aex;
582 struct amr_prodinfo *ap;
583 struct amr_enquiry *ae;
587 * If we haven't found the real limit yet, let us have a couple of commands in
588 * order to be able to probe.
590 if (sc->amr_maxio == 0)
594 * Greater than 10 byte cdb support
596 sc->support_ext_cdb = amr_support_ext_cdb(sc);
598 if(sc->support_ext_cdb) {
599 debug(2,"supports extended CDBs.");
603 * Try to issue an ENQUIRY3 command
605 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
606 AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) {
609 * Fetch current state of logical drives.
611 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
612 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
613 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
614 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
615 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
616 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
621 * Get product info for channel count.
623 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) {
624 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
627 sc->amr_maxdrives = 40;
628 sc->amr_maxchan = ap->ap_nschan;
629 sc->amr_maxio = ap->ap_maxio;
630 sc->amr_type |= AMR_TYPE_40LD;
635 /* failed, try the 8LD ENQUIRY commands */
636 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) {
637 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) {
638 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
641 ae->ae_signature = 0;
645 * Fetch current state of logical drives.
647 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
648 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
649 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
650 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
651 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
652 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
655 sc->amr_maxdrives = 8;
656 sc->amr_maxchan = ae->ae_adapter.aa_channels;
657 sc->amr_maxio = ae->ae_adapter.aa_maxio;
662 * Mark remaining drives as unused.
664 for (; ldrv < AMR_MAXLD; ldrv++)
665 sc->amr_drive[ldrv].al_size = 0xffffffff;
668 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
669 * the controller's reported value, and lockups have been seen when we do.
671 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
676 /********************************************************************************
677 * Run a generic enquiry-style command.
680 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual)
682 struct amr_command *ac;
692 /* get ourselves a command buffer */
693 if ((ac = amr_alloccmd(sc)) == NULL)
695 /* allocate the response structure */
696 result = malloc(bufsize, M_DEVBUF, M_INTWAIT);
697 /* set command flags */
698 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
700 /* point the command at our data */
701 ac->ac_data = result;
702 ac->ac_length = bufsize;
704 /* build the command proper */
705 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
710 /* can't assume that interrupts are going to work here, so play it safe */
711 if (sc->amr_poll_command(ac))
713 error = ac->ac_status;
718 if ((error != 0) && (result != NULL)) {
719 free(result, M_DEVBUF);
725 /********************************************************************************
726 * Flush the controller's internal cache, return status.
729 amr_flush(struct amr_softc *sc)
731 struct amr_command *ac;
734 /* get ourselves a command buffer */
736 if ((ac = amr_alloccmd(sc)) == NULL)
738 /* set command flags */
739 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
741 /* build the command proper */
742 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
744 /* we have to poll, as the system may be going down or otherwise damaged */
745 if (sc->amr_poll_command(ac))
747 error = ac->ac_status;
755 /********************************************************************************
756 * Detect extented cdb >> greater than 10 byte cdb support
757 * returns '1' means this support exist
758 * returns '0' means this support doesn't exist
761 amr_support_ext_cdb(struct amr_softc *sc)
763 struct amr_command *ac;
767 /* get ourselves a command buffer */
769 if ((ac = amr_alloccmd(sc)) == NULL)
771 /* set command flags */
772 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
774 /* build the command proper */
775 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
780 /* we have to poll, as the system may be going down or otherwise damaged */
781 if (sc->amr_poll_command(ac))
783 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
793 /********************************************************************************
794 * Try to find I/O work for the controller from one or more of the work queues.
796 * We make the assumption that if the controller is not ready to take a command
797 * at some given time, it will generate an interrupt at some later time when
801 amr_startio(struct amr_softc *sc)
803 struct amr_command *ac;
805 /* spin until something prevents us from doing any work */
808 /* try to get a ready command */
809 ac = amr_dequeue_ready(sc);
811 /* if that failed, build a command from a bio */
813 (void)amr_bio_command(sc, &ac);
815 /* if that failed, build a command from a ccb */
817 (void)amr_cam_command(sc, &ac);
819 /* if we don't have anything to do, give up */
823 /* try to give the command to the controller; if this fails save it for later and give up */
825 debug(2, "controller busy, command deferred");
826 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
832 /********************************************************************************
833 * Handle completion of an I/O command.
836 amr_completeio(struct amr_command *ac)
838 struct amr_softc *sc = ac->ac_sc;
840 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
841 ac->ac_bio->bio_error = EIO;
842 ac->ac_bio->bio_flags |= BIO_ERROR;
844 device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status);
845 /* amr_printcommand(ac);*/
847 amrd_intr(ac->ac_bio);
851 /********************************************************************************
852 ********************************************************************************
854 ********************************************************************************
855 ********************************************************************************/
857 /********************************************************************************
858 * Convert a bio off the top of the bio queue into a command.
861 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
863 struct amr_command *ac;
864 struct amrd_softc *amrd;
874 /* get a bio to work on */
875 if ((bio = amr_dequeue_bio(sc)) == NULL)
879 if ((ac = amr_alloccmd(sc)) == NULL) {
884 /* connect the bio to the command */
885 ac->ac_complete = amr_completeio;
887 ac->ac_data = bio->bio_data;
888 ac->ac_length = bio->bio_bcount;
889 if (BIO_IS_READ(bio)) {
890 ac->ac_flags |= AMR_CMD_DATAIN;
893 ac->ac_flags |= AMR_CMD_DATAOUT;
894 cmd = AMR_CMD_LWRITE;
896 amrd = (struct amrd_softc *)bio->bio_dev->si_drv1;
897 driveno = amrd->amrd_drive - sc->amr_drive;
898 blkcount = (bio->bio_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
900 ac->ac_mailbox.mb_command = cmd;
901 ac->ac_mailbox.mb_blkcount = blkcount;
902 ac->ac_mailbox.mb_lba = bio->bio_pblkno;
903 ac->ac_mailbox.mb_drive = driveno;
904 /* we fill in the s/g related data when the command is mapped */
906 if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size)
907 device_printf(sc->amr_dev, "I/O beyond end of unit (%lld,%d > %lu)\n",
908 (long long)bio->bio_pblkno, blkcount,
909 (u_long)sc->amr_drive[driveno].al_size);
915 if (bio != NULL) /* this breaks ordering... */
916 amr_enqueue_bio(sc, bio);
922 /********************************************************************************
923 * Take a command, submit it to the controller and sleep until it completes
924 * or fails. Interrupts must be enabled, returns nonzero on error.
927 amr_wait_command(struct amr_command *ac)
933 ac->ac_complete = NULL;
934 ac->ac_flags |= AMR_CMD_SLEEP;
935 if ((error = amr_start(ac)) != 0)
939 /* XXX better timeout? */
940 while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) {
941 tsleep(ac, PCATCH, "amrwcmd", hz);
946 /********************************************************************************
947 * Take a command, submit it to the controller and busy-wait for it to return.
948 * Returns nonzero on error. Can be safely called with interrupts enabled.
951 amr_std_poll_command(struct amr_command *ac)
953 struct amr_softc *sc = ac->ac_sc;
958 ac->ac_complete = NULL;
959 if ((error = amr_start(ac)) != 0)
965 * Poll for completion, although the interrupt handler may beat us to it.
966 * Note that the timeout here is somewhat arbitrary.
970 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
971 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
974 /* XXX the slot is now marked permanently busy */
976 device_printf(sc->amr_dev, "polled command timeout\n");
981 /********************************************************************************
982 * Take a command, submit it to the controller and busy-wait for it to return.
983 * Returns nonzero on error. Can be safely called with interrupts enabled.
986 amr_quartz_poll_command(struct amr_command *ac)
988 struct amr_softc *sc = ac->ac_sc;
994 /* now we have a slot, we can map the command (unmapped in amr_complete) */
999 if (sc->amr_state & AMR_STATE_INTEN) {
1001 while (sc->amr_busyslots) {
1002 tsleep(sc, PCATCH, "amrpoll", hz);
1008 if(sc->amr_busyslots) {
1009 device_printf(sc->amr_dev, "adapter is busy\n");
1017 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1019 /* clear the poll/ack fields in the mailbox */
1020 sc->amr_mailbox->mb_ident = 0xFE;
1021 sc->amr_mailbox->mb_nstatus = 0xFF;
1022 sc->amr_mailbox->mb_status = 0xFF;
1023 sc->amr_mailbox->mb_poll = 0;
1024 sc->amr_mailbox->mb_ack = 0;
1025 sc->amr_mailbox->mb_busy = 1;
1027 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1029 while(sc->amr_mailbox->mb_nstatus == 0xFF);
1030 while(sc->amr_mailbox->mb_status == 0xFF);
1031 ac->ac_status=sc->amr_mailbox->mb_status;
1032 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1033 while(sc->amr_mailbox->mb_poll != 0x77);
1034 sc->amr_mailbox->mb_poll = 0;
1035 sc->amr_mailbox->mb_ack = 0x77;
1037 /* acknowledge that we have the commands */
1038 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1039 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK);
1043 /* unmap the command's data buffer */
1049 /********************************************************************************
1050 * Get a free command slot for a command if it doesn't already have one.
1052 * May be safely called multiple times for a given command.
1055 amr_getslot(struct amr_command *ac)
1057 struct amr_softc *sc = ac->ac_sc;
1058 int s, slot, limit, error;
1062 /* if the command already has a slot, don't try to give it another one */
1063 if (ac->ac_slot != 0)
1066 /* enforce slot usage limit */
1067 limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4;
1068 if (sc->amr_busyslots > limit)
1072 * Allocate a slot. XXX linear scan is slow
1076 for (slot = 0; slot < sc->amr_maxio; slot++) {
1077 if (sc->amr_busycmd[slot] == NULL) {
1078 sc->amr_busycmd[slot] = ac;
1079 sc->amr_busyslots++;
1090 /********************************************************************************
1091 * Map/unmap (ac)'s data in the controller's addressable space as required.
1093 * These functions may be safely called multiple times on a given command.
1096 amr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1098 struct amr_command *ac = (struct amr_command *)arg;
1099 struct amr_softc *sc = ac->ac_sc;
1100 struct amr_sgentry *sg;
1106 /* get base address of s/g table */
1107 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1109 /* save data physical address */
1110 ac->ac_dataphys = segs[0].ds_addr;
1112 /* for AMR_CMD_CONFIG the s/g count goes elsewhere */
1113 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG) {
1114 sgc = &(((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param);
1116 sgc = &ac->ac_mailbox.mb_nsgelem;
1119 /* decide whether we need to populate the s/g table */
1120 if (nsegments < 2) {
1122 ac->ac_mailbox.mb_nsgelem = 0;
1123 ac->ac_mailbox.mb_physaddr = ac->ac_dataphys;
1125 ac->ac_mailbox.mb_nsgelem = nsegments;
1127 ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1128 for (i = 0; i < nsegments; i++, sg++) {
1129 sg->sg_addr = segs[i].ds_addr;
1130 sg->sg_count = segs[i].ds_len;
1136 amr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1138 struct amr_command *ac = (struct amr_command *)arg;
1139 struct amr_softc *sc = ac->ac_sc;
1140 struct amr_sgentry *sg;
1141 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
1142 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
1145 /* get base address of s/g table */
1146 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1148 /* decide whether we need to populate the s/g table */
1149 if( ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS ) {
1150 if (nsegments < 2) {
1151 aep->ap_no_sg_elements = 0;
1152 aep->ap_data_transfer_address = segs[0].ds_addr;
1154 /* save s/g table information in passthrough */
1155 aep->ap_no_sg_elements = nsegments;
1156 aep->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1157 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1158 for (i = 0; i < nsegments; i++, sg++) {
1159 sg->sg_addr = segs[i].ds_addr;
1160 sg->sg_count = segs[i].ds_len;
1161 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1164 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1165 aep->ap_no_sg_elements, aep->ap_data_transfer_address, ac->ac_dataphys);
1167 if (nsegments < 2) {
1168 ap->ap_no_sg_elements = 0;
1169 ap->ap_data_transfer_address = segs[0].ds_addr;
1171 /* save s/g table information in passthrough */
1172 ap->ap_no_sg_elements = nsegments;
1173 ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1174 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1175 for (i = 0; i < nsegments; i++, sg++) {
1176 sg->sg_addr = segs[i].ds_addr;
1177 sg->sg_count = segs[i].ds_len;
1178 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1181 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1182 ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys);
1187 amr_mapcmd(struct amr_command *ac)
1189 struct amr_softc *sc = ac->ac_sc;
1193 /* if the command involves data at all, and hasn't been mapped */
1194 if (!(ac->ac_flags & AMR_CMD_MAPPED)) {
1196 if (ac->ac_data != NULL) {
1197 /* map the data buffers into bus space and build the s/g list */
1198 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length,
1199 amr_setup_dmamap, ac, 0);
1200 if (ac->ac_flags & AMR_CMD_DATAIN)
1201 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD);
1202 if (ac->ac_flags & AMR_CMD_DATAOUT)
1203 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE);
1206 if (ac->ac_ccb_data != NULL) {
1207 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length,
1208 amr_setup_ccbmap, ac, 0);
1209 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1210 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD);
1211 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1212 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE);
1214 ac->ac_flags |= AMR_CMD_MAPPED;
1219 amr_unmapcmd(struct amr_command *ac)
1221 struct amr_softc *sc = ac->ac_sc;
1225 /* if the command involved data at all and was mapped */
1226 if (ac->ac_flags & AMR_CMD_MAPPED) {
1228 if (ac->ac_data != NULL) {
1229 if (ac->ac_flags & AMR_CMD_DATAIN)
1230 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD);
1231 if (ac->ac_flags & AMR_CMD_DATAOUT)
1232 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE);
1233 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap);
1236 if (ac->ac_ccb_data != NULL) {
1237 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1238 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD);
1239 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1240 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE);
1241 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap);
1243 ac->ac_flags &= ~AMR_CMD_MAPPED;
1247 /********************************************************************************
1248 * Take a command and give it to the controller, returns 0 if successful, or
1249 * EBUSY if the command should be retried later.
1252 amr_start(struct amr_command *ac)
1254 struct amr_softc *sc = ac->ac_sc;
1259 /* mark command as busy so that polling consumer can tell */
1260 ac->ac_flags |= AMR_CMD_BUSY;
1262 /* get a command slot (freed in amr_done) */
1263 if (amr_getslot(ac))
1266 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1269 /* mark the new mailbox we are going to copy in as busy */
1270 ac->ac_mailbox.mb_busy = 1;
1272 /* clear the poll/ack fields in the mailbox */
1273 sc->amr_mailbox->mb_poll = 0;
1274 sc->amr_mailbox->mb_ack = 0;
1277 * Save the slot number so that we can locate this command when complete.
1278 * Note that ident = 0 seems to be special, so we don't use it.
1280 ac->ac_mailbox.mb_ident = ac->ac_slot + 1;
1283 * Spin waiting for the mailbox, give up after ~1 second. We expect the
1284 * controller to be able to handle our I/O.
1286 * XXX perhaps we should wait for less time, and count on the deferred command
1287 * handling to deal with retries?
1289 debug(4, "wait for mailbox");
1290 for (i = 10000, done = 0; (i > 0) && !done; i--) {
1293 /* is the mailbox free? */
1294 if (sc->amr_mailbox->mb_busy == 0) {
1295 debug(4, "got mailbox");
1296 sc->amr_mailbox64->mb64_segment = 0;
1297 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1300 /* not free, spin waiting */
1302 debug(4, "busy flag %x\n", sc->amr_mailbox->mb_busy);
1303 /* this is somewhat ugly */
1306 splx(s); /* drop spl to allow completion interrupts */
1310 * Now give the command to the controller
1313 if (sc->amr_submit_command(sc)) {
1314 /* the controller wasn't ready to take the command, forget that we tried to post it */
1315 sc->amr_mailbox->mb_busy = 0;
1318 debug(3, "posted command");
1323 * The controller wouldn't take the command. Return the command as busy
1324 * so that it is retried later.
1329 /********************************************************************************
1330 * Extract one or more completed commands from the controller (sc)
1332 * Returns nonzero if any commands on the work queue were marked as completed.
1335 amr_done(struct amr_softc *sc)
1337 struct amr_command *ac;
1338 struct amr_mailbox mbox;
1343 /* See if there's anything for us to do */
1346 /* loop collecting completed commands */
1348 /* poll for a completed command's identifier and status */
1349 if (sc->amr_get_work(sc, &mbox)) {
1352 /* iterate over completed commands in this result */
1353 for (i = 0; i < mbox.mb_nstatus; i++) {
1354 /* get pointer to busy command */
1355 idx = mbox.mb_completed[i] - 1;
1356 ac = sc->amr_busycmd[idx];
1358 /* really a busy command? */
1361 /* pull the command from the busy index */
1362 sc->amr_busycmd[idx] = NULL;
1363 sc->amr_busyslots--;
1365 /* save status for later use */
1366 ac->ac_status = mbox.mb_status;
1367 amr_enqueue_completed(ac);
1368 debug(3, "completed command with status %x", mbox.mb_status);
1370 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1374 break; /* no work */
1378 /* if we've completed any commands, try posting some more */
1382 /* handle completion and timeouts */
1383 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1384 if (sc->amr_state & AMR_STATE_INTEN)
1385 taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete);
1388 amr_complete(sc, 0);
1393 /********************************************************************************
1394 * Do completion processing on done commands on (sc)
1397 amr_complete(void *context, int pending)
1399 struct amr_softc *sc = (struct amr_softc *)context;
1400 struct amr_command *ac;
1404 /* pull completed commands off the queue */
1406 ac = amr_dequeue_completed(sc);
1410 /* unmap the command's data buffer */
1413 /* unbusy the command */
1414 ac->ac_flags &= ~AMR_CMD_BUSY;
1417 * Is there a completion handler?
1419 if (ac->ac_complete != NULL) {
1420 ac->ac_complete(ac);
1423 * Is someone sleeping on this one?
1425 } else if (ac->ac_flags & AMR_CMD_SLEEP) {
1429 if(!sc->amr_busyslots) {
1435 /********************************************************************************
1436 ********************************************************************************
1437 Command Buffer Management
1438 ********************************************************************************
1439 ********************************************************************************/
1441 /********************************************************************************
1442 * Get a new command buffer.
1444 * This may return NULL in low-memory cases.
1446 * If possible, we recycle a command buffer that's been used before.
1448 struct amr_command *
1449 amr_alloccmd(struct amr_softc *sc)
1451 struct amr_command *ac;
1455 ac = amr_dequeue_free(sc);
1457 amr_alloccmd_cluster(sc);
1458 ac = amr_dequeue_free(sc);
1463 /* clear out significant fields */
1466 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1470 ac->ac_ccb_data = NULL;
1471 ac->ac_complete = NULL;
1475 /********************************************************************************
1476 * Release a command buffer for recycling.
1479 amr_releasecmd(struct amr_command *ac)
1483 amr_enqueue_free(ac);
1486 /********************************************************************************
1487 * Allocate a new command cluster and initialise it.
1490 amr_alloccmd_cluster(struct amr_softc *sc)
1492 struct amr_command_cluster *acc;
1493 struct amr_command *ac;
1496 acc = malloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_INTWAIT);
1498 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1500 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1501 ac = &acc->acc_command[i];
1502 bzero(ac, sizeof(*ac));
1504 if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) &&
1505 !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap))
1510 /********************************************************************************
1511 * Free a command cluster
1514 amr_freecmd_cluster(struct amr_command_cluster *acc)
1516 struct amr_softc *sc = acc->acc_command[0].ac_sc;
1519 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++)
1520 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
1521 free(acc, M_DEVBUF);
1524 /********************************************************************************
1525 ********************************************************************************
1526 Interface-specific Shims
1527 ********************************************************************************
1528 ********************************************************************************/
1530 /********************************************************************************
1531 * Tell the controller that the mailbox contains a valid command
1534 amr_quartz_submit_command(struct amr_softc *sc)
1538 if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT)
1540 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1545 amr_std_submit_command(struct amr_softc *sc)
1549 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG)
1551 AMR_SPOST_COMMAND(sc);
1555 /********************************************************************************
1556 * Claim any work that the controller has completed; acknowledge completion,
1557 * save details of the completion in (mbsave)
1560 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1570 /* work waiting for us? */
1571 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
1573 /* save mailbox, which contains a list of completed commands */
1574 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1576 /* acknowledge interrupt */
1577 AMR_QPUT_ODB(sc, AMR_QODB_READY);
1579 /* acknowledge that we have the commands */
1580 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1582 #ifndef AMR_QUARTZ_GOFASTER
1584 * This waits for the controller to notice that we've taken the
1585 * command from it. It's very inefficient, and we shouldn't do it,
1586 * but if we remove this code, we stop completing commands under
1589 * Peter J says we shouldn't do this. The documentation says we
1590 * should. Who is right?
1592 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1593 ; /* XXX aiee! what if it dies? */
1596 worked = 1; /* got some work */
1604 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1614 /* check for valid interrupt status */
1615 istat = AMR_SGET_ISTAT(sc);
1616 if ((istat & AMR_SINTR_VALID) != 0) {
1617 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
1619 /* save mailbox, which contains a list of completed commands */
1620 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1622 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
1630 /********************************************************************************
1631 * Notify the controller of the mailbox location.
1634 amr_std_attach_mailbox(struct amr_softc *sc)
1637 /* program the mailbox physical address */
1638 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
1639 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
1640 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
1641 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
1642 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
1644 /* clear any outstanding interrupt and enable interrupts proper */
1645 AMR_SACK_INTERRUPT(sc);
1646 AMR_SENABLE_INTR(sc);
1649 #ifdef AMR_BOARD_INIT
1650 /********************************************************************************
1651 * Initialise the controller
1654 amr_quartz_init(struct amr_softc *sc)
1656 int status, ostatus;
1658 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
1663 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
1664 if (status != ostatus) {
1665 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
1669 case AMR_QINIT_NOMEM:
1672 case AMR_QINIT_SCAN:
1673 /* XXX we could print channel/target here */
1681 amr_std_init(struct amr_softc *sc)
1683 int status, ostatus;
1685 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
1690 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
1691 if (status != ostatus) {
1692 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
1696 case AMR_SINIT_NOMEM:
1699 case AMR_SINIT_INPROG:
1700 /* XXX we could print channel/target here? */
1708 /********************************************************************************
1709 ********************************************************************************
1711 ********************************************************************************
1712 ********************************************************************************/
1714 /********************************************************************************
1715 * Identify the controller and print some information about it.
1718 amr_describe_controller(struct amr_softc *sc)
1720 struct amr_prodinfo *ap;
1721 struct amr_enquiry *ae;
1725 * Try to get 40LD product info, which tells us what the card is labelled as.
1727 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) {
1728 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
1729 ap->ap_product, ap->ap_firmware, ap->ap_bios,
1737 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
1739 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) {
1740 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
1742 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) {
1745 * Try to work it out based on the PCI signatures.
1747 switch (pci_get_device(sc->amr_dev)) {
1749 prod = "Series 428";
1752 prod = "Series 434";
1755 prod = "unknown controller";
1759 prod = "unsupported controller";
1763 * HP NetRaid controllers have a special encoding of the firmware and
1764 * BIOS versions. The AMI version seems to have it as strings whereas
1765 * the HP version does it with a leading uppercase character and two
1769 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
1770 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
1771 ae->ae_adapter.aa_firmware[1] < ' ' &&
1772 ae->ae_adapter.aa_firmware[0] < ' ' &&
1773 ae->ae_adapter.aa_bios[2] >= 'A' &&
1774 ae->ae_adapter.aa_bios[2] <= 'Z' &&
1775 ae->ae_adapter.aa_bios[1] < ' ' &&
1776 ae->ae_adapter.aa_bios[0] < ' ') {
1778 /* this looks like we have an HP NetRaid version of the MegaRaid */
1780 if(ae->ae_signature == AMR_SIG_438) {
1781 /* the AMI 438 is a NetRaid 3si in HP-land */
1782 prod = "HP NetRaid 3si";
1785 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
1786 prod, ae->ae_adapter.aa_firmware[2],
1787 ae->ae_adapter.aa_firmware[1],
1788 ae->ae_adapter.aa_firmware[0],
1789 ae->ae_adapter.aa_bios[2],
1790 ae->ae_adapter.aa_bios[1],
1791 ae->ae_adapter.aa_bios[0],
1792 ae->ae_adapter.aa_memorysize);
1794 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
1795 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
1796 ae->ae_adapter.aa_memorysize);
1802 amr_dump_blocks(struct amr_softc *sc, int unit, u_int32_t lba, void *data, int blks)
1805 struct amr_command *ac;
1810 sc->amr_state &= ~AMR_STATE_INTEN;
1812 /* get ourselves a command buffer */
1813 if ((ac = amr_alloccmd(sc)) == NULL)
1815 /* set command flags */
1816 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1818 /* point the command at our data */
1820 ac->ac_length = blks * AMR_BLKSIZE;
1822 /* build the command proper */
1823 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
1824 ac->ac_mailbox.mb_blkcount = blks;
1825 ac->ac_mailbox.mb_lba = lba;
1826 ac->ac_mailbox.mb_drive = unit;
1828 /* can't assume that interrupts are going to work here, so play it safe */
1829 if (sc->amr_poll_command(ac))
1831 error = ac->ac_status;
1837 sc->amr_state |= AMR_STATE_INTEN;
1844 /********************************************************************************
1845 * Print the command (ac) in human-readable format
1849 amr_printcommand(struct amr_command *ac)
1851 struct amr_softc *sc = ac->ac_sc;
1852 struct amr_sgentry *sg;
1855 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
1856 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
1857 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
1858 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
1859 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
1860 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
1861 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
1862 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
1864 /* get base address of s/g table */
1865 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1866 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
1867 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);