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 1.8 2004/02/13 01:33:19 joerg 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 sc->amr_dev_t = make_dev(&amr_cdevsw, device_get_unit(sc->amr_dev), UID_ROOT, GID_OPERATOR,
257 S_IRUSR | S_IWUSR, "amr%d", device_get_unit(sc->amr_dev));
258 sc->amr_dev_t->si_drv1 = sc;
261 * Schedule ourselves to bring the controller up once interrupts are
264 bzero(&sc->amr_ich, sizeof(struct intr_config_hook));
265 sc->amr_ich.ich_func = amr_startup;
266 sc->amr_ich.ich_arg = sc;
267 if (config_intrhook_establish(&sc->amr_ich) != 0) {
268 device_printf(sc->amr_dev, "can't establish configuration hook\n");
273 * Print a little information about the controller.
275 amr_describe_controller(sc);
277 debug(2, "attach complete");
281 /********************************************************************************
282 * Locate disk resources and attach children to them.
285 amr_startup(void *arg)
287 struct amr_softc *sc = (struct amr_softc *)arg;
288 struct amr_logdrive *dr;
293 /* pull ourselves off the intrhook chain */
294 config_intrhook_disestablish(&sc->amr_ich);
296 /* get up-to-date drive information */
297 if (amr_query_controller(sc)) {
298 device_printf(sc->amr_dev, "can't scan controller for drives\n");
302 /* iterate over available drives */
303 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
304 /* are we already attached to this drive? */
305 if (dr->al_disk == 0) {
306 /* generate geometry information */
307 if (dr->al_size > 0x200000) { /* extended translation? */
314 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
316 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
317 if (dr->al_disk == 0)
318 device_printf(sc->amr_dev, "device_add_child failed\n");
319 device_set_ivars(dr->al_disk, dr);
323 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
324 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
326 /* mark controller back up */
327 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
329 /* interrupts will be enabled before we do anything more */
330 sc->amr_state |= AMR_STATE_INTEN;
333 * Start the timeout routine.
335 /* sc->amr_timeout = timeout(amr_periodic, sc, hz);*/
340 /*******************************************************************************
341 * Free resources associated with a controller instance
344 amr_free(struct amr_softc *sc)
346 struct amr_command_cluster *acc;
348 /* detach from CAM */
351 /* cancel status timeout */
352 untimeout(amr_periodic, sc, sc->amr_timeout);
354 /* throw away any command buffers */
355 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
356 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
357 amr_freecmd_cluster(acc);
360 /* destroy control device */
361 if( sc->amr_dev_t != (dev_t)NULL)
362 destroy_dev(sc->amr_dev_t);
365 /*******************************************************************************
366 * Receive a bio structure from a child device and queue it on a particular
367 * disk resource, then poke the disk resource to start as much work as it can.
370 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
374 amr_enqueue_bio(sc, bio);
379 /********************************************************************************
380 * Accept an open operation on the control device.
383 amr_open(dev_t dev, int flags, int fmt, d_thread_t *td)
385 int unit = minor(dev);
386 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
390 sc->amr_state |= AMR_STATE_OPEN;
394 /********************************************************************************
395 * Accept the last close on the control device.
398 amr_close(dev_t dev, int flags, int fmt, d_thread_t *td)
400 int unit = minor(dev);
401 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
405 sc->amr_state &= ~AMR_STATE_OPEN;
409 /********************************************************************************
410 * Handle controller-specific control operations.
413 amr_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *td)
415 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
416 int *arg = (int *)addr;
417 struct amr_user_ioctl *au = (struct amr_user_ioctl *)addr;
418 struct amr_command *ac;
419 struct amr_mailbox_ioctl *mbi;
420 struct amr_passthrough *ap;
433 debug(1, "AMR_IO_VERSION");
434 *arg = AMR_IO_VERSION_NUMBER;
438 debug(1, "AMR_IO_COMMAND 0x%x", au->au_cmd[0]);
439 /* handle inbound data buffer */
440 if (au->au_length != 0) {
441 if ((dp = malloc(au->au_length, M_DEVBUF, M_WAITOK)) == NULL) {
445 if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0)
447 debug(2, "copyin %ld bytes from %p -> %p", au->au_length, au->au_buffer, dp);
450 if ((ac = amr_alloccmd(sc)) == NULL) {
455 /* handle SCSI passthrough command */
456 if (au->au_cmd[0] == AMR_CMD_PASS) {
457 if ((ap = malloc(sizeof(*ap), M_DEVBUF, M_WAITOK | M_ZERO)) == NULL) {
463 ap->ap_cdb_length = au->au_cmd[2];
464 bcopy(&au->au_cmd[3], &ap->ap_cdb[0], ap->ap_cdb_length);
466 /* build passthrough */
467 ap->ap_timeout = au->au_cmd[ap->ap_cdb_length + 3] & 0x07;
468 ap->ap_ars = (au->au_cmd[ap->ap_cdb_length + 3] & 0x08) ? 1 : 0;
469 ap->ap_islogical = (au->au_cmd[ap->ap_cdb_length + 3] & 0x80) ? 1 : 0;
470 ap->ap_logical_drive_no = au->au_cmd[ap->ap_cdb_length + 4];
471 ap->ap_channel = au->au_cmd[ap->ap_cdb_length + 5];
472 ap->ap_scsi_id = au->au_cmd[ap->ap_cdb_length + 6];
473 ap->ap_request_sense_length = 14;
474 ap->ap_data_transfer_length = au->au_length;
475 /* XXX what about the request-sense area? does the caller want it? */
479 ac->ac_length = sizeof(*ap);
480 ac->ac_flags |= AMR_CMD_DATAOUT;
481 ac->ac_ccb_data = dp;
482 ac->ac_ccb_length = au->au_length;
483 if (au->au_direction & AMR_IO_READ)
484 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
485 if (au->au_direction & AMR_IO_WRITE)
486 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
488 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
491 /* direct command to controller */
492 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
494 /* copy pertinent mailbox items */
495 mbi->mb_command = au->au_cmd[0];
496 mbi->mb_channel = au->au_cmd[1];
497 mbi->mb_param = au->au_cmd[2];
498 mbi->mb_pad[0] = au->au_cmd[3];
499 mbi->mb_drive = au->au_cmd[4];
501 /* build the command */
503 ac->ac_length = au->au_length;
504 if (au->au_direction & AMR_IO_READ)
505 ac->ac_flags |= AMR_CMD_DATAIN;
506 if (au->au_direction & AMR_IO_WRITE)
507 ac->ac_flags |= AMR_CMD_DATAOUT;
510 /* run the command */
511 if ((error = amr_wait_command(ac)) != 0)
514 /* copy out data and set status */
515 if (au->au_length != 0)
516 error = copyout(dp, au->au_buffer, au->au_length);
517 debug(2, "copyout %ld bytes from %p -> %p", au->au_length, dp, au->au_buffer);
519 debug(2, "%16d", (int)dp);
520 au->au_status = ac->ac_status;
524 debug(1, "unknown ioctl 0x%lx", cmd);
538 /********************************************************************************
539 ********************************************************************************
541 ********************************************************************************
542 ********************************************************************************/
544 /********************************************************************************
545 * Perform a periodic check of the controller status
548 amr_periodic(void *data)
550 struct amr_softc *sc = (struct amr_softc *)data;
554 /* XXX perform periodic status checks here */
556 /* compensate for missed interrupts */
560 sc->amr_timeout = timeout(amr_periodic, sc, hz);
563 /********************************************************************************
564 ********************************************************************************
566 ********************************************************************************
567 ********************************************************************************/
569 /********************************************************************************
570 * Interrogate the controller for the operational parameters we require.
573 amr_query_controller(struct amr_softc *sc)
575 struct amr_enquiry3 *aex;
576 struct amr_prodinfo *ap;
577 struct amr_enquiry *ae;
581 * If we haven't found the real limit yet, let us have a couple of commands in
582 * order to be able to probe.
584 if (sc->amr_maxio == 0)
588 * Greater than 10 byte cdb support
590 sc->support_ext_cdb = amr_support_ext_cdb(sc);
592 if(sc->support_ext_cdb) {
593 debug(2,"supports extended CDBs.");
597 * Try to issue an ENQUIRY3 command
599 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
600 AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) {
603 * Fetch current state of logical drives.
605 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
606 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
607 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
608 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
609 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
610 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
615 * Get product info for channel count.
617 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) {
618 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
621 sc->amr_maxdrives = 40;
622 sc->amr_maxchan = ap->ap_nschan;
623 sc->amr_maxio = ap->ap_maxio;
624 sc->amr_type |= AMR_TYPE_40LD;
629 /* failed, try the 8LD ENQUIRY commands */
630 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) {
631 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) {
632 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
635 ae->ae_signature = 0;
639 * Fetch current state of logical drives.
641 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
642 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
643 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
644 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
645 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
646 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
649 sc->amr_maxdrives = 8;
650 sc->amr_maxchan = ae->ae_adapter.aa_channels;
651 sc->amr_maxio = ae->ae_adapter.aa_maxio;
656 * Mark remaining drives as unused.
658 for (; ldrv < AMR_MAXLD; ldrv++)
659 sc->amr_drive[ldrv].al_size = 0xffffffff;
662 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
663 * the controller's reported value, and lockups have been seen when we do.
665 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
670 /********************************************************************************
671 * Run a generic enquiry-style command.
674 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual)
676 struct amr_command *ac;
686 /* get ourselves a command buffer */
687 if ((ac = amr_alloccmd(sc)) == NULL)
689 /* allocate the response structure */
690 if ((result = malloc(bufsize, M_DEVBUF, M_NOWAIT)) == NULL)
692 /* set command flags */
693 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
695 /* point the command at our data */
696 ac->ac_data = result;
697 ac->ac_length = bufsize;
699 /* build the command proper */
700 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
705 /* can't assume that interrupts are going to work here, so play it safe */
706 if (sc->amr_poll_command(ac))
708 error = ac->ac_status;
713 if ((error != 0) && (result != NULL)) {
714 free(result, M_DEVBUF);
720 /********************************************************************************
721 * Flush the controller's internal cache, return status.
724 amr_flush(struct amr_softc *sc)
726 struct amr_command *ac;
729 /* get ourselves a command buffer */
731 if ((ac = amr_alloccmd(sc)) == NULL)
733 /* set command flags */
734 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
736 /* build the command proper */
737 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
739 /* we have to poll, as the system may be going down or otherwise damaged */
740 if (sc->amr_poll_command(ac))
742 error = ac->ac_status;
750 /********************************************************************************
751 * Detect extented cdb >> greater than 10 byte cdb support
752 * returns '1' means this support exist
753 * returns '0' means this support doesn't exist
756 amr_support_ext_cdb(struct amr_softc *sc)
758 struct amr_command *ac;
762 /* get ourselves a command buffer */
764 if ((ac = amr_alloccmd(sc)) == NULL)
766 /* set command flags */
767 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
769 /* build the command proper */
770 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
775 /* we have to poll, as the system may be going down or otherwise damaged */
776 if (sc->amr_poll_command(ac))
778 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
788 /********************************************************************************
789 * Try to find I/O work for the controller from one or more of the work queues.
791 * We make the assumption that if the controller is not ready to take a command
792 * at some given time, it will generate an interrupt at some later time when
796 amr_startio(struct amr_softc *sc)
798 struct amr_command *ac;
800 /* spin until something prevents us from doing any work */
803 /* try to get a ready command */
804 ac = amr_dequeue_ready(sc);
806 /* if that failed, build a command from a bio */
808 (void)amr_bio_command(sc, &ac);
810 /* if that failed, build a command from a ccb */
812 (void)amr_cam_command(sc, &ac);
814 /* if we don't have anything to do, give up */
818 /* try to give the command to the controller; if this fails save it for later and give up */
820 debug(2, "controller busy, command deferred");
821 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
827 /********************************************************************************
828 * Handle completion of an I/O command.
831 amr_completeio(struct amr_command *ac)
833 struct amr_softc *sc = ac->ac_sc;
835 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
836 ac->ac_bio->bio_error = EIO;
837 ac->ac_bio->bio_flags |= BIO_ERROR;
839 device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status);
840 /* amr_printcommand(ac);*/
842 amrd_intr(ac->ac_bio);
846 /********************************************************************************
847 ********************************************************************************
849 ********************************************************************************
850 ********************************************************************************/
852 /********************************************************************************
853 * Convert a bio off the top of the bio queue into a command.
856 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
858 struct amr_command *ac;
859 struct amrd_softc *amrd;
869 /* get a bio to work on */
870 if ((bio = amr_dequeue_bio(sc)) == NULL)
874 if ((ac = amr_alloccmd(sc)) == NULL) {
879 /* connect the bio to the command */
880 ac->ac_complete = amr_completeio;
882 ac->ac_data = bio->bio_data;
883 ac->ac_length = bio->bio_bcount;
884 if (BIO_IS_READ(bio)) {
885 ac->ac_flags |= AMR_CMD_DATAIN;
888 ac->ac_flags |= AMR_CMD_DATAOUT;
889 cmd = AMR_CMD_LWRITE;
891 amrd = (struct amrd_softc *)bio->bio_dev->si_drv1;
892 driveno = amrd->amrd_drive - sc->amr_drive;
893 blkcount = (bio->bio_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
895 ac->ac_mailbox.mb_command = cmd;
896 ac->ac_mailbox.mb_blkcount = blkcount;
897 ac->ac_mailbox.mb_lba = bio->bio_pblkno;
898 ac->ac_mailbox.mb_drive = driveno;
899 /* we fill in the s/g related data when the command is mapped */
901 if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size)
902 device_printf(sc->amr_dev, "I/O beyond end of unit (%lld,%d > %lu)\n",
903 (long long)bio->bio_pblkno, blkcount,
904 (u_long)sc->amr_drive[driveno].al_size);
910 if (bio != NULL) /* this breaks ordering... */
911 amr_enqueue_bio(sc, bio);
917 /********************************************************************************
918 * Take a command, submit it to the controller and sleep until it completes
919 * or fails. Interrupts must be enabled, returns nonzero on error.
922 amr_wait_command(struct amr_command *ac)
928 ac->ac_complete = NULL;
929 ac->ac_flags |= AMR_CMD_SLEEP;
930 if ((error = amr_start(ac)) != 0)
934 /* XXX better timeout? */
935 while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) {
936 tsleep(ac, PCATCH, "amrwcmd", hz);
941 /********************************************************************************
942 * Take a command, submit it to the controller and busy-wait for it to return.
943 * Returns nonzero on error. Can be safely called with interrupts enabled.
946 amr_std_poll_command(struct amr_command *ac)
948 struct amr_softc *sc = ac->ac_sc;
953 ac->ac_complete = NULL;
954 if ((error = amr_start(ac)) != 0)
960 * Poll for completion, although the interrupt handler may beat us to it.
961 * Note that the timeout here is somewhat arbitrary.
965 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
966 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
969 /* XXX the slot is now marked permanently busy */
971 device_printf(sc->amr_dev, "polled command timeout\n");
976 /********************************************************************************
977 * Take a command, submit it to the controller and busy-wait for it to return.
978 * Returns nonzero on error. Can be safely called with interrupts enabled.
981 amr_quartz_poll_command(struct amr_command *ac)
983 struct amr_softc *sc = ac->ac_sc;
989 /* now we have a slot, we can map the command (unmapped in amr_complete) */
994 if (sc->amr_state & AMR_STATE_INTEN) {
996 while (sc->amr_busyslots) {
997 tsleep(sc, PCATCH, "amrpoll", hz);
1003 if(sc->amr_busyslots) {
1004 device_printf(sc->amr_dev, "adapter is busy\n");
1012 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1014 /* clear the poll/ack fields in the mailbox */
1015 sc->amr_mailbox->mb_ident = 0xFE;
1016 sc->amr_mailbox->mb_nstatus = 0xFF;
1017 sc->amr_mailbox->mb_status = 0xFF;
1018 sc->amr_mailbox->mb_poll = 0;
1019 sc->amr_mailbox->mb_ack = 0;
1020 sc->amr_mailbox->mb_busy = 1;
1022 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1024 while(sc->amr_mailbox->mb_nstatus == 0xFF);
1025 while(sc->amr_mailbox->mb_status == 0xFF);
1026 ac->ac_status=sc->amr_mailbox->mb_status;
1027 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1028 while(sc->amr_mailbox->mb_poll != 0x77);
1029 sc->amr_mailbox->mb_poll = 0;
1030 sc->amr_mailbox->mb_ack = 0x77;
1032 /* acknowledge that we have the commands */
1033 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1034 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK);
1038 /* unmap the command's data buffer */
1044 /********************************************************************************
1045 * Get a free command slot for a command if it doesn't already have one.
1047 * May be safely called multiple times for a given command.
1050 amr_getslot(struct amr_command *ac)
1052 struct amr_softc *sc = ac->ac_sc;
1053 int s, slot, limit, error;
1057 /* if the command already has a slot, don't try to give it another one */
1058 if (ac->ac_slot != 0)
1061 /* enforce slot usage limit */
1062 limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4;
1063 if (sc->amr_busyslots > limit)
1067 * Allocate a slot. XXX linear scan is slow
1071 for (slot = 0; slot < sc->amr_maxio; slot++) {
1072 if (sc->amr_busycmd[slot] == NULL) {
1073 sc->amr_busycmd[slot] = ac;
1074 sc->amr_busyslots++;
1085 /********************************************************************************
1086 * Map/unmap (ac)'s data in the controller's addressable space as required.
1088 * These functions may be safely called multiple times on a given command.
1091 amr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1093 struct amr_command *ac = (struct amr_command *)arg;
1094 struct amr_softc *sc = ac->ac_sc;
1095 struct amr_sgentry *sg;
1101 /* get base address of s/g table */
1102 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1104 /* save data physical address */
1105 ac->ac_dataphys = segs[0].ds_addr;
1107 /* for AMR_CMD_CONFIG the s/g count goes elsewhere */
1108 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG) {
1109 sgc = &(((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param);
1111 sgc = &ac->ac_mailbox.mb_nsgelem;
1114 /* decide whether we need to populate the s/g table */
1115 if (nsegments < 2) {
1117 ac->ac_mailbox.mb_nsgelem = 0;
1118 ac->ac_mailbox.mb_physaddr = ac->ac_dataphys;
1120 ac->ac_mailbox.mb_nsgelem = nsegments;
1122 ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1123 for (i = 0; i < nsegments; i++, sg++) {
1124 sg->sg_addr = segs[i].ds_addr;
1125 sg->sg_count = segs[i].ds_len;
1131 amr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1133 struct amr_command *ac = (struct amr_command *)arg;
1134 struct amr_softc *sc = ac->ac_sc;
1135 struct amr_sgentry *sg;
1136 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
1137 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
1140 /* get base address of s/g table */
1141 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1143 /* decide whether we need to populate the s/g table */
1144 if( ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS ) {
1145 if (nsegments < 2) {
1146 aep->ap_no_sg_elements = 0;
1147 aep->ap_data_transfer_address = segs[0].ds_addr;
1149 /* save s/g table information in passthrough */
1150 aep->ap_no_sg_elements = nsegments;
1151 aep->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1152 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1153 for (i = 0; i < nsegments; i++, sg++) {
1154 sg->sg_addr = segs[i].ds_addr;
1155 sg->sg_count = segs[i].ds_len;
1156 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1159 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1160 aep->ap_no_sg_elements, aep->ap_data_transfer_address, ac->ac_dataphys);
1162 if (nsegments < 2) {
1163 ap->ap_no_sg_elements = 0;
1164 ap->ap_data_transfer_address = segs[0].ds_addr;
1166 /* save s/g table information in passthrough */
1167 ap->ap_no_sg_elements = nsegments;
1168 ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1169 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1170 for (i = 0; i < nsegments; i++, sg++) {
1171 sg->sg_addr = segs[i].ds_addr;
1172 sg->sg_count = segs[i].ds_len;
1173 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1176 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1177 ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys);
1182 amr_mapcmd(struct amr_command *ac)
1184 struct amr_softc *sc = ac->ac_sc;
1188 /* if the command involves data at all, and hasn't been mapped */
1189 if (!(ac->ac_flags & AMR_CMD_MAPPED)) {
1191 if (ac->ac_data != NULL) {
1192 /* map the data buffers into bus space and build the s/g list */
1193 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length,
1194 amr_setup_dmamap, ac, 0);
1195 if (ac->ac_flags & AMR_CMD_DATAIN)
1196 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD);
1197 if (ac->ac_flags & AMR_CMD_DATAOUT)
1198 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE);
1201 if (ac->ac_ccb_data != NULL) {
1202 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length,
1203 amr_setup_ccbmap, ac, 0);
1204 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1205 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD);
1206 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1207 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE);
1209 ac->ac_flags |= AMR_CMD_MAPPED;
1214 amr_unmapcmd(struct amr_command *ac)
1216 struct amr_softc *sc = ac->ac_sc;
1220 /* if the command involved data at all and was mapped */
1221 if (ac->ac_flags & AMR_CMD_MAPPED) {
1223 if (ac->ac_data != NULL) {
1224 if (ac->ac_flags & AMR_CMD_DATAIN)
1225 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD);
1226 if (ac->ac_flags & AMR_CMD_DATAOUT)
1227 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE);
1228 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap);
1231 if (ac->ac_ccb_data != NULL) {
1232 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1233 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD);
1234 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1235 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE);
1236 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap);
1238 ac->ac_flags &= ~AMR_CMD_MAPPED;
1242 /********************************************************************************
1243 * Take a command and give it to the controller, returns 0 if successful, or
1244 * EBUSY if the command should be retried later.
1247 amr_start(struct amr_command *ac)
1249 struct amr_softc *sc = ac->ac_sc;
1254 /* mark command as busy so that polling consumer can tell */
1255 ac->ac_flags |= AMR_CMD_BUSY;
1257 /* get a command slot (freed in amr_done) */
1258 if (amr_getslot(ac))
1261 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1264 /* mark the new mailbox we are going to copy in as busy */
1265 ac->ac_mailbox.mb_busy = 1;
1267 /* clear the poll/ack fields in the mailbox */
1268 sc->amr_mailbox->mb_poll = 0;
1269 sc->amr_mailbox->mb_ack = 0;
1272 * Save the slot number so that we can locate this command when complete.
1273 * Note that ident = 0 seems to be special, so we don't use it.
1275 ac->ac_mailbox.mb_ident = ac->ac_slot + 1;
1278 * Spin waiting for the mailbox, give up after ~1 second. We expect the
1279 * controller to be able to handle our I/O.
1281 * XXX perhaps we should wait for less time, and count on the deferred command
1282 * handling to deal with retries?
1284 debug(4, "wait for mailbox");
1285 for (i = 10000, done = 0; (i > 0) && !done; i--) {
1288 /* is the mailbox free? */
1289 if (sc->amr_mailbox->mb_busy == 0) {
1290 debug(4, "got mailbox");
1291 sc->amr_mailbox64->mb64_segment = 0;
1292 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1295 /* not free, spin waiting */
1297 debug(4, "busy flag %x\n", sc->amr_mailbox->mb_busy);
1298 /* this is somewhat ugly */
1301 splx(s); /* drop spl to allow completion interrupts */
1305 * Now give the command to the controller
1308 if (sc->amr_submit_command(sc)) {
1309 /* the controller wasn't ready to take the command, forget that we tried to post it */
1310 sc->amr_mailbox->mb_busy = 0;
1313 debug(3, "posted command");
1318 * The controller wouldn't take the command. Return the command as busy
1319 * so that it is retried later.
1324 /********************************************************************************
1325 * Extract one or more completed commands from the controller (sc)
1327 * Returns nonzero if any commands on the work queue were marked as completed.
1330 amr_done(struct amr_softc *sc)
1332 struct amr_command *ac;
1333 struct amr_mailbox mbox;
1338 /* See if there's anything for us to do */
1341 /* loop collecting completed commands */
1343 /* poll for a completed command's identifier and status */
1344 if (sc->amr_get_work(sc, &mbox)) {
1347 /* iterate over completed commands in this result */
1348 for (i = 0; i < mbox.mb_nstatus; i++) {
1349 /* get pointer to busy command */
1350 idx = mbox.mb_completed[i] - 1;
1351 ac = sc->amr_busycmd[idx];
1353 /* really a busy command? */
1356 /* pull the command from the busy index */
1357 sc->amr_busycmd[idx] = NULL;
1358 sc->amr_busyslots--;
1360 /* save status for later use */
1361 ac->ac_status = mbox.mb_status;
1362 amr_enqueue_completed(ac);
1363 debug(3, "completed command with status %x", mbox.mb_status);
1365 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1369 break; /* no work */
1373 /* if we've completed any commands, try posting some more */
1377 /* handle completion and timeouts */
1378 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1379 if (sc->amr_state & AMR_STATE_INTEN)
1380 taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete);
1383 amr_complete(sc, 0);
1388 /********************************************************************************
1389 * Do completion processing on done commands on (sc)
1392 amr_complete(void *context, int pending)
1394 struct amr_softc *sc = (struct amr_softc *)context;
1395 struct amr_command *ac;
1399 /* pull completed commands off the queue */
1401 ac = amr_dequeue_completed(sc);
1405 /* unmap the command's data buffer */
1408 /* unbusy the command */
1409 ac->ac_flags &= ~AMR_CMD_BUSY;
1412 * Is there a completion handler?
1414 if (ac->ac_complete != NULL) {
1415 ac->ac_complete(ac);
1418 * Is someone sleeping on this one?
1420 } else if (ac->ac_flags & AMR_CMD_SLEEP) {
1424 if(!sc->amr_busyslots) {
1430 /********************************************************************************
1431 ********************************************************************************
1432 Command Buffer Management
1433 ********************************************************************************
1434 ********************************************************************************/
1436 /********************************************************************************
1437 * Get a new command buffer.
1439 * This may return NULL in low-memory cases.
1441 * If possible, we recycle a command buffer that's been used before.
1443 struct amr_command *
1444 amr_alloccmd(struct amr_softc *sc)
1446 struct amr_command *ac;
1450 ac = amr_dequeue_free(sc);
1452 amr_alloccmd_cluster(sc);
1453 ac = amr_dequeue_free(sc);
1458 /* clear out significant fields */
1461 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1465 ac->ac_ccb_data = NULL;
1466 ac->ac_complete = NULL;
1470 /********************************************************************************
1471 * Release a command buffer for recycling.
1474 amr_releasecmd(struct amr_command *ac)
1478 amr_enqueue_free(ac);
1481 /********************************************************************************
1482 * Allocate a new command cluster and initialise it.
1485 amr_alloccmd_cluster(struct amr_softc *sc)
1487 struct amr_command_cluster *acc;
1488 struct amr_command *ac;
1491 acc = malloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_NOWAIT);
1494 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1496 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1497 ac = &acc->acc_command[i];
1498 bzero(ac, sizeof(*ac));
1500 if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) &&
1501 !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap))
1507 /********************************************************************************
1508 * Free a command cluster
1511 amr_freecmd_cluster(struct amr_command_cluster *acc)
1513 struct amr_softc *sc = acc->acc_command[0].ac_sc;
1516 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++)
1517 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
1518 free(acc, M_DEVBUF);
1521 /********************************************************************************
1522 ********************************************************************************
1523 Interface-specific Shims
1524 ********************************************************************************
1525 ********************************************************************************/
1527 /********************************************************************************
1528 * Tell the controller that the mailbox contains a valid command
1531 amr_quartz_submit_command(struct amr_softc *sc)
1535 if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT)
1537 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1542 amr_std_submit_command(struct amr_softc *sc)
1546 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG)
1548 AMR_SPOST_COMMAND(sc);
1552 /********************************************************************************
1553 * Claim any work that the controller has completed; acknowledge completion,
1554 * save details of the completion in (mbsave)
1557 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1567 /* work waiting for us? */
1568 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
1570 /* save mailbox, which contains a list of completed commands */
1571 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1573 /* acknowledge interrupt */
1574 AMR_QPUT_ODB(sc, AMR_QODB_READY);
1576 /* acknowledge that we have the commands */
1577 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1579 #ifndef AMR_QUARTZ_GOFASTER
1581 * This waits for the controller to notice that we've taken the
1582 * command from it. It's very inefficient, and we shouldn't do it,
1583 * but if we remove this code, we stop completing commands under
1586 * Peter J says we shouldn't do this. The documentation says we
1587 * should. Who is right?
1589 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1590 ; /* XXX aiee! what if it dies? */
1593 worked = 1; /* got some work */
1601 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1611 /* check for valid interrupt status */
1612 istat = AMR_SGET_ISTAT(sc);
1613 if ((istat & AMR_SINTR_VALID) != 0) {
1614 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
1616 /* save mailbox, which contains a list of completed commands */
1617 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1619 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
1627 /********************************************************************************
1628 * Notify the controller of the mailbox location.
1631 amr_std_attach_mailbox(struct amr_softc *sc)
1634 /* program the mailbox physical address */
1635 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
1636 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
1637 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
1638 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
1639 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
1641 /* clear any outstanding interrupt and enable interrupts proper */
1642 AMR_SACK_INTERRUPT(sc);
1643 AMR_SENABLE_INTR(sc);
1646 #ifdef AMR_BOARD_INIT
1647 /********************************************************************************
1648 * Initialise the controller
1651 amr_quartz_init(struct amr_softc *sc)
1653 int status, ostatus;
1655 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
1660 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
1661 if (status != ostatus) {
1662 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
1666 case AMR_QINIT_NOMEM:
1669 case AMR_QINIT_SCAN:
1670 /* XXX we could print channel/target here */
1678 amr_std_init(struct amr_softc *sc)
1680 int status, ostatus;
1682 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
1687 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
1688 if (status != ostatus) {
1689 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
1693 case AMR_SINIT_NOMEM:
1696 case AMR_SINIT_INPROG:
1697 /* XXX we could print channel/target here? */
1705 /********************************************************************************
1706 ********************************************************************************
1708 ********************************************************************************
1709 ********************************************************************************/
1711 /********************************************************************************
1712 * Identify the controller and print some information about it.
1715 amr_describe_controller(struct amr_softc *sc)
1717 struct amr_prodinfo *ap;
1718 struct amr_enquiry *ae;
1722 * Try to get 40LD product info, which tells us what the card is labelled as.
1724 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) {
1725 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
1726 ap->ap_product, ap->ap_firmware, ap->ap_bios,
1734 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
1736 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) {
1737 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
1739 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) {
1742 * Try to work it out based on the PCI signatures.
1744 switch (pci_get_device(sc->amr_dev)) {
1746 prod = "Series 428";
1749 prod = "Series 434";
1752 prod = "unknown controller";
1756 prod = "unsupported controller";
1760 * HP NetRaid controllers have a special encoding of the firmware and
1761 * BIOS versions. The AMI version seems to have it as strings whereas
1762 * the HP version does it with a leading uppercase character and two
1766 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
1767 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
1768 ae->ae_adapter.aa_firmware[1] < ' ' &&
1769 ae->ae_adapter.aa_firmware[0] < ' ' &&
1770 ae->ae_adapter.aa_bios[2] >= 'A' &&
1771 ae->ae_adapter.aa_bios[2] <= 'Z' &&
1772 ae->ae_adapter.aa_bios[1] < ' ' &&
1773 ae->ae_adapter.aa_bios[0] < ' ') {
1775 /* this looks like we have an HP NetRaid version of the MegaRaid */
1777 if(ae->ae_signature == AMR_SIG_438) {
1778 /* the AMI 438 is a NetRaid 3si in HP-land */
1779 prod = "HP NetRaid 3si";
1782 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
1783 prod, ae->ae_adapter.aa_firmware[2],
1784 ae->ae_adapter.aa_firmware[1],
1785 ae->ae_adapter.aa_firmware[0],
1786 ae->ae_adapter.aa_bios[2],
1787 ae->ae_adapter.aa_bios[1],
1788 ae->ae_adapter.aa_bios[0],
1789 ae->ae_adapter.aa_memorysize);
1791 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
1792 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
1793 ae->ae_adapter.aa_memorysize);
1799 amr_dump_blocks(struct amr_softc *sc, int unit, u_int32_t lba, void *data, int blks)
1802 struct amr_command *ac;
1807 sc->amr_state &= ~AMR_STATE_INTEN;
1809 /* get ourselves a command buffer */
1810 if ((ac = amr_alloccmd(sc)) == NULL)
1812 /* set command flags */
1813 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1815 /* point the command at our data */
1817 ac->ac_length = blks * AMR_BLKSIZE;
1819 /* build the command proper */
1820 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
1821 ac->ac_mailbox.mb_blkcount = blks;
1822 ac->ac_mailbox.mb_lba = lba;
1823 ac->ac_mailbox.mb_drive = unit;
1825 /* can't assume that interrupts are going to work here, so play it safe */
1826 if (sc->amr_poll_command(ac))
1828 error = ac->ac_status;
1834 sc->amr_state |= AMR_STATE_INTEN;
1841 /********************************************************************************
1842 * Print the command (ac) in human-readable format
1846 amr_printcommand(struct amr_command *ac)
1848 struct amr_softc *sc = ac->ac_sc;
1849 struct amr_sgentry *sg;
1852 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
1853 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
1854 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
1855 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
1856 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
1857 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
1858 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
1859 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
1861 /* get base address of s/g table */
1862 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1863 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
1864 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);