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 1.13 2004/09/15 16:25:12 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 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 if (config_intrhook_establish(&sc->amr_ich) != 0) {
271 device_printf(sc->amr_dev, "can't establish configuration hook\n");
276 * Print a little information about the controller.
278 amr_describe_controller(sc);
280 debug(2, "attach complete");
284 /********************************************************************************
285 * Locate disk resources and attach children to them.
288 amr_startup(void *arg)
290 struct amr_softc *sc = (struct amr_softc *)arg;
291 struct amr_logdrive *dr;
295 callout_init(&sc->amr_timeout);
297 /* pull ourselves off the intrhook chain */
298 config_intrhook_disestablish(&sc->amr_ich);
300 /* get up-to-date drive information */
301 if (amr_query_controller(sc)) {
302 device_printf(sc->amr_dev, "can't scan controller for drives\n");
306 /* iterate over available drives */
307 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
308 /* are we already attached to this drive? */
309 if (dr->al_disk == 0) {
310 /* generate geometry information */
311 if (dr->al_size > 0x200000) { /* extended translation? */
318 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
320 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
321 if (dr->al_disk == 0)
322 device_printf(sc->amr_dev, "device_add_child failed\n");
323 device_set_ivars(dr->al_disk, dr);
327 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
328 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
330 /* mark controller back up */
331 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
333 /* interrupts will be enabled before we do anything more */
334 sc->amr_state |= AMR_STATE_INTEN;
337 * Start the timeout routine.
339 /* callout_reset(&sc->amr_timeout, hz, amr_periodic, sc); */
344 /*******************************************************************************
345 * Free resources associated with a controller instance
348 amr_free(struct amr_softc *sc)
350 struct amr_command_cluster *acc;
352 /* detach from CAM */
355 /* cancel status timeout */
356 callout_stop(&sc->amr_timeout);
358 /* throw away any command buffers */
359 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
360 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
361 amr_freecmd_cluster(acc);
364 /* destroy control device */
365 if( sc->amr_dev_t != (dev_t)NULL)
366 destroy_dev(sc->amr_dev_t);
367 cdevsw_remove(&amr_cdevsw, -1, device_get_unit(sc->amr_dev));
370 /*******************************************************************************
371 * Receive a bio structure from a child device and queue it on a particular
372 * disk resource, then poke the disk resource to start as much work as it can.
375 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
379 amr_enqueue_bio(sc, bio);
384 /********************************************************************************
385 * Accept an open operation on the control device.
388 amr_open(dev_t dev, int flags, int fmt, d_thread_t *td)
390 int unit = minor(dev);
391 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
395 sc->amr_state |= AMR_STATE_OPEN;
399 /********************************************************************************
400 * Accept the last close on the control device.
403 amr_close(dev_t dev, int flags, int fmt, d_thread_t *td)
405 int unit = minor(dev);
406 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
410 sc->amr_state &= ~AMR_STATE_OPEN;
414 /********************************************************************************
415 * Handle controller-specific control operations.
418 amr_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *td)
420 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
421 int *arg = (int *)addr;
422 struct amr_user_ioctl *au = (struct amr_user_ioctl *)addr;
423 struct amr_command *ac;
424 struct amr_mailbox_ioctl *mbi;
425 struct amr_passthrough *ap;
438 debug(1, "AMR_IO_VERSION");
439 *arg = AMR_IO_VERSION_NUMBER;
443 debug(1, "AMR_IO_COMMAND 0x%x", au->au_cmd[0]);
444 /* handle inbound data buffer */
445 if (au->au_length != 0) {
446 if ((dp = malloc(au->au_length, M_DEVBUF, M_WAITOK)) == NULL) {
450 if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0)
452 debug(2, "copyin %ld bytes from %p -> %p", au->au_length, au->au_buffer, dp);
455 if ((ac = amr_alloccmd(sc)) == NULL) {
460 /* handle SCSI passthrough command */
461 if (au->au_cmd[0] == AMR_CMD_PASS) {
462 if ((ap = malloc(sizeof(*ap), M_DEVBUF, M_WAITOK | M_ZERO)) == NULL) {
468 ap->ap_cdb_length = au->au_cmd[2];
469 bcopy(&au->au_cmd[3], &ap->ap_cdb[0], ap->ap_cdb_length);
471 /* build passthrough */
472 ap->ap_timeout = au->au_cmd[ap->ap_cdb_length + 3] & 0x07;
473 ap->ap_ars = (au->au_cmd[ap->ap_cdb_length + 3] & 0x08) ? 1 : 0;
474 ap->ap_islogical = (au->au_cmd[ap->ap_cdb_length + 3] & 0x80) ? 1 : 0;
475 ap->ap_logical_drive_no = au->au_cmd[ap->ap_cdb_length + 4];
476 ap->ap_channel = au->au_cmd[ap->ap_cdb_length + 5];
477 ap->ap_scsi_id = au->au_cmd[ap->ap_cdb_length + 6];
478 ap->ap_request_sense_length = 14;
479 ap->ap_data_transfer_length = au->au_length;
480 /* XXX what about the request-sense area? does the caller want it? */
484 ac->ac_length = sizeof(*ap);
485 ac->ac_flags |= AMR_CMD_DATAOUT;
486 ac->ac_ccb_data = dp;
487 ac->ac_ccb_length = au->au_length;
488 if (au->au_direction & AMR_IO_READ)
489 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
490 if (au->au_direction & AMR_IO_WRITE)
491 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
493 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
496 /* direct command to controller */
497 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
499 /* copy pertinent mailbox items */
500 mbi->mb_command = au->au_cmd[0];
501 mbi->mb_channel = au->au_cmd[1];
502 mbi->mb_param = au->au_cmd[2];
503 mbi->mb_pad[0] = au->au_cmd[3];
504 mbi->mb_drive = au->au_cmd[4];
506 /* build the command */
508 ac->ac_length = au->au_length;
509 if (au->au_direction & AMR_IO_READ)
510 ac->ac_flags |= AMR_CMD_DATAIN;
511 if (au->au_direction & AMR_IO_WRITE)
512 ac->ac_flags |= AMR_CMD_DATAOUT;
515 /* run the command */
516 if ((error = amr_wait_command(ac)) != 0)
519 /* copy out data and set status */
520 if (au->au_length != 0)
521 error = copyout(dp, au->au_buffer, au->au_length);
522 debug(2, "copyout %ld bytes from %p -> %p", au->au_length, dp, au->au_buffer);
524 debug(2, "%16d", (int)dp);
525 au->au_status = ac->ac_status;
529 debug(1, "unknown ioctl 0x%lx", cmd);
543 /********************************************************************************
544 ********************************************************************************
546 ********************************************************************************
547 ********************************************************************************/
549 /********************************************************************************
550 * Perform a periodic check of the controller status
553 amr_periodic(void *data)
555 struct amr_softc *sc = (struct amr_softc *)data;
559 /* XXX perform periodic status checks here */
561 /* compensate for missed interrupts */
565 callout_reset(&sc->amr_timeout, hz, amr_periodic, sc);
568 /********************************************************************************
569 ********************************************************************************
571 ********************************************************************************
572 ********************************************************************************/
574 /********************************************************************************
575 * Interrogate the controller for the operational parameters we require.
578 amr_query_controller(struct amr_softc *sc)
580 struct amr_enquiry3 *aex;
581 struct amr_prodinfo *ap;
582 struct amr_enquiry *ae;
586 * If we haven't found the real limit yet, let us have a couple of commands in
587 * order to be able to probe.
589 if (sc->amr_maxio == 0)
593 * Greater than 10 byte cdb support
595 sc->support_ext_cdb = amr_support_ext_cdb(sc);
597 if(sc->support_ext_cdb) {
598 debug(2,"supports extended CDBs.");
602 * Try to issue an ENQUIRY3 command
604 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
605 AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) {
608 * Fetch current state of logical drives.
610 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
611 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
612 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
613 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
614 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
615 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
620 * Get product info for channel count.
622 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) {
623 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
626 sc->amr_maxdrives = 40;
627 sc->amr_maxchan = ap->ap_nschan;
628 sc->amr_maxio = ap->ap_maxio;
629 sc->amr_type |= AMR_TYPE_40LD;
634 /* failed, try the 8LD ENQUIRY commands */
635 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) {
636 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) {
637 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
640 ae->ae_signature = 0;
644 * Fetch current state of logical drives.
646 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
647 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
648 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
649 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
650 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
651 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
654 sc->amr_maxdrives = 8;
655 sc->amr_maxchan = ae->ae_adapter.aa_channels;
656 sc->amr_maxio = ae->ae_adapter.aa_maxio;
661 * Mark remaining drives as unused.
663 for (; ldrv < AMR_MAXLD; ldrv++)
664 sc->amr_drive[ldrv].al_size = 0xffffffff;
667 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
668 * the controller's reported value, and lockups have been seen when we do.
670 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
675 /********************************************************************************
676 * Run a generic enquiry-style command.
679 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual)
681 struct amr_command *ac;
691 /* get ourselves a command buffer */
692 if ((ac = amr_alloccmd(sc)) == NULL)
694 /* allocate the response structure */
695 result = malloc(bufsize, M_DEVBUF, M_INTWAIT);
696 /* set command flags */
697 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
699 /* point the command at our data */
700 ac->ac_data = result;
701 ac->ac_length = bufsize;
703 /* build the command proper */
704 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
709 /* can't assume that interrupts are going to work here, so play it safe */
710 if (sc->amr_poll_command(ac))
712 error = ac->ac_status;
717 if ((error != 0) && (result != NULL)) {
718 free(result, M_DEVBUF);
724 /********************************************************************************
725 * Flush the controller's internal cache, return status.
728 amr_flush(struct amr_softc *sc)
730 struct amr_command *ac;
733 /* get ourselves a command buffer */
735 if ((ac = amr_alloccmd(sc)) == NULL)
737 /* set command flags */
738 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
740 /* build the command proper */
741 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
743 /* we have to poll, as the system may be going down or otherwise damaged */
744 if (sc->amr_poll_command(ac))
746 error = ac->ac_status;
754 /********************************************************************************
755 * Detect extented cdb >> greater than 10 byte cdb support
756 * returns '1' means this support exist
757 * returns '0' means this support doesn't exist
760 amr_support_ext_cdb(struct amr_softc *sc)
762 struct amr_command *ac;
766 /* get ourselves a command buffer */
768 if ((ac = amr_alloccmd(sc)) == NULL)
770 /* set command flags */
771 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
773 /* build the command proper */
774 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
779 /* we have to poll, as the system may be going down or otherwise damaged */
780 if (sc->amr_poll_command(ac))
782 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
792 /********************************************************************************
793 * Try to find I/O work for the controller from one or more of the work queues.
795 * We make the assumption that if the controller is not ready to take a command
796 * at some given time, it will generate an interrupt at some later time when
800 amr_startio(struct amr_softc *sc)
802 struct amr_command *ac;
804 /* spin until something prevents us from doing any work */
807 /* try to get a ready command */
808 ac = amr_dequeue_ready(sc);
810 /* if that failed, build a command from a bio */
812 (void)amr_bio_command(sc, &ac);
814 /* if that failed, build a command from a ccb */
816 (void)amr_cam_command(sc, &ac);
818 /* if we don't have anything to do, give up */
822 /* try to give the command to the controller; if this fails save it for later and give up */
824 debug(2, "controller busy, command deferred");
825 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
831 /********************************************************************************
832 * Handle completion of an I/O command.
835 amr_completeio(struct amr_command *ac)
837 struct amr_softc *sc = ac->ac_sc;
839 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
840 ac->ac_bio->bio_error = EIO;
841 ac->ac_bio->bio_flags |= BIO_ERROR;
843 device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status);
844 /* amr_printcommand(ac);*/
846 amrd_intr(ac->ac_bio);
850 /********************************************************************************
851 ********************************************************************************
853 ********************************************************************************
854 ********************************************************************************/
856 /********************************************************************************
857 * Convert a bio off the top of the bio queue into a command.
860 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
862 struct amr_command *ac;
863 struct amrd_softc *amrd;
873 /* get a bio to work on */
874 if ((bio = amr_dequeue_bio(sc)) == NULL)
878 if ((ac = amr_alloccmd(sc)) == NULL) {
883 /* connect the bio to the command */
884 ac->ac_complete = amr_completeio;
886 ac->ac_data = bio->bio_data;
887 ac->ac_length = bio->bio_bcount;
888 if (BIO_IS_READ(bio)) {
889 ac->ac_flags |= AMR_CMD_DATAIN;
892 ac->ac_flags |= AMR_CMD_DATAOUT;
893 cmd = AMR_CMD_LWRITE;
895 amrd = (struct amrd_softc *)bio->bio_dev->si_drv1;
896 driveno = amrd->amrd_drive - sc->amr_drive;
897 blkcount = (bio->bio_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
899 ac->ac_mailbox.mb_command = cmd;
900 ac->ac_mailbox.mb_blkcount = blkcount;
901 ac->ac_mailbox.mb_lba = bio->bio_pblkno;
902 ac->ac_mailbox.mb_drive = driveno;
903 /* we fill in the s/g related data when the command is mapped */
905 if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size)
906 device_printf(sc->amr_dev, "I/O beyond end of unit (%lld,%d > %lu)\n",
907 (long long)bio->bio_pblkno, blkcount,
908 (u_long)sc->amr_drive[driveno].al_size);
914 if (bio != NULL) /* this breaks ordering... */
915 amr_enqueue_bio(sc, bio);
921 /********************************************************************************
922 * Take a command, submit it to the controller and sleep until it completes
923 * or fails. Interrupts must be enabled, returns nonzero on error.
926 amr_wait_command(struct amr_command *ac)
932 ac->ac_complete = NULL;
933 ac->ac_flags |= AMR_CMD_SLEEP;
934 if ((error = amr_start(ac)) != 0)
938 /* XXX better timeout? */
939 while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) {
940 tsleep(ac, PCATCH, "amrwcmd", hz);
945 /********************************************************************************
946 * Take a command, submit it to the controller and busy-wait for it to return.
947 * Returns nonzero on error. Can be safely called with interrupts enabled.
950 amr_std_poll_command(struct amr_command *ac)
952 struct amr_softc *sc = ac->ac_sc;
957 ac->ac_complete = NULL;
958 if ((error = amr_start(ac)) != 0)
964 * Poll for completion, although the interrupt handler may beat us to it.
965 * Note that the timeout here is somewhat arbitrary.
969 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
970 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
973 /* XXX the slot is now marked permanently busy */
975 device_printf(sc->amr_dev, "polled command timeout\n");
980 /********************************************************************************
981 * Take a command, submit it to the controller and busy-wait for it to return.
982 * Returns nonzero on error. Can be safely called with interrupts enabled.
985 amr_quartz_poll_command(struct amr_command *ac)
987 struct amr_softc *sc = ac->ac_sc;
993 /* now we have a slot, we can map the command (unmapped in amr_complete) */
998 if (sc->amr_state & AMR_STATE_INTEN) {
1000 while (sc->amr_busyslots) {
1001 tsleep(sc, PCATCH, "amrpoll", hz);
1007 if(sc->amr_busyslots) {
1008 device_printf(sc->amr_dev, "adapter is busy\n");
1016 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1018 /* clear the poll/ack fields in the mailbox */
1019 sc->amr_mailbox->mb_ident = 0xFE;
1020 sc->amr_mailbox->mb_nstatus = 0xFF;
1021 sc->amr_mailbox->mb_status = 0xFF;
1022 sc->amr_mailbox->mb_poll = 0;
1023 sc->amr_mailbox->mb_ack = 0;
1024 sc->amr_mailbox->mb_busy = 1;
1026 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1028 while(sc->amr_mailbox->mb_nstatus == 0xFF);
1029 while(sc->amr_mailbox->mb_status == 0xFF);
1030 ac->ac_status=sc->amr_mailbox->mb_status;
1031 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1032 while(sc->amr_mailbox->mb_poll != 0x77);
1033 sc->amr_mailbox->mb_poll = 0;
1034 sc->amr_mailbox->mb_ack = 0x77;
1036 /* acknowledge that we have the commands */
1037 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1038 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK);
1042 /* unmap the command's data buffer */
1048 /********************************************************************************
1049 * Get a free command slot for a command if it doesn't already have one.
1051 * May be safely called multiple times for a given command.
1054 amr_getslot(struct amr_command *ac)
1056 struct amr_softc *sc = ac->ac_sc;
1057 int s, slot, limit, error;
1061 /* if the command already has a slot, don't try to give it another one */
1062 if (ac->ac_slot != 0)
1065 /* enforce slot usage limit */
1066 limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4;
1067 if (sc->amr_busyslots > limit)
1071 * Allocate a slot. XXX linear scan is slow
1075 for (slot = 0; slot < sc->amr_maxio; slot++) {
1076 if (sc->amr_busycmd[slot] == NULL) {
1077 sc->amr_busycmd[slot] = ac;
1078 sc->amr_busyslots++;
1089 /********************************************************************************
1090 * Map/unmap (ac)'s data in the controller's addressable space as required.
1092 * These functions may be safely called multiple times on a given command.
1095 amr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1097 struct amr_command *ac = (struct amr_command *)arg;
1098 struct amr_softc *sc = ac->ac_sc;
1099 struct amr_sgentry *sg;
1105 /* get base address of s/g table */
1106 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1108 /* save data physical address */
1109 ac->ac_dataphys = segs[0].ds_addr;
1111 /* for AMR_CMD_CONFIG the s/g count goes elsewhere */
1112 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG) {
1113 sgc = &(((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param);
1115 sgc = &ac->ac_mailbox.mb_nsgelem;
1118 /* decide whether we need to populate the s/g table */
1119 if (nsegments < 2) {
1121 ac->ac_mailbox.mb_nsgelem = 0;
1122 ac->ac_mailbox.mb_physaddr = ac->ac_dataphys;
1124 ac->ac_mailbox.mb_nsgelem = nsegments;
1126 ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1127 for (i = 0; i < nsegments; i++, sg++) {
1128 sg->sg_addr = segs[i].ds_addr;
1129 sg->sg_count = segs[i].ds_len;
1135 amr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1137 struct amr_command *ac = (struct amr_command *)arg;
1138 struct amr_softc *sc = ac->ac_sc;
1139 struct amr_sgentry *sg;
1140 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
1141 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
1144 /* get base address of s/g table */
1145 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1147 /* decide whether we need to populate the s/g table */
1148 if( ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS ) {
1149 if (nsegments < 2) {
1150 aep->ap_no_sg_elements = 0;
1151 aep->ap_data_transfer_address = segs[0].ds_addr;
1153 /* save s/g table information in passthrough */
1154 aep->ap_no_sg_elements = nsegments;
1155 aep->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1156 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1157 for (i = 0; i < nsegments; i++, sg++) {
1158 sg->sg_addr = segs[i].ds_addr;
1159 sg->sg_count = segs[i].ds_len;
1160 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1163 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1164 aep->ap_no_sg_elements, aep->ap_data_transfer_address, ac->ac_dataphys);
1166 if (nsegments < 2) {
1167 ap->ap_no_sg_elements = 0;
1168 ap->ap_data_transfer_address = segs[0].ds_addr;
1170 /* save s/g table information in passthrough */
1171 ap->ap_no_sg_elements = nsegments;
1172 ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1173 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1174 for (i = 0; i < nsegments; i++, sg++) {
1175 sg->sg_addr = segs[i].ds_addr;
1176 sg->sg_count = segs[i].ds_len;
1177 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1180 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1181 ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys);
1186 amr_mapcmd(struct amr_command *ac)
1188 struct amr_softc *sc = ac->ac_sc;
1192 /* if the command involves data at all, and hasn't been mapped */
1193 if (!(ac->ac_flags & AMR_CMD_MAPPED)) {
1195 if (ac->ac_data != NULL) {
1196 /* map the data buffers into bus space and build the s/g list */
1197 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length,
1198 amr_setup_dmamap, ac, 0);
1199 if (ac->ac_flags & AMR_CMD_DATAIN)
1200 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD);
1201 if (ac->ac_flags & AMR_CMD_DATAOUT)
1202 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE);
1205 if (ac->ac_ccb_data != NULL) {
1206 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length,
1207 amr_setup_ccbmap, ac, 0);
1208 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1209 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD);
1210 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1211 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE);
1213 ac->ac_flags |= AMR_CMD_MAPPED;
1218 amr_unmapcmd(struct amr_command *ac)
1220 struct amr_softc *sc = ac->ac_sc;
1224 /* if the command involved data at all and was mapped */
1225 if (ac->ac_flags & AMR_CMD_MAPPED) {
1227 if (ac->ac_data != NULL) {
1228 if (ac->ac_flags & AMR_CMD_DATAIN)
1229 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD);
1230 if (ac->ac_flags & AMR_CMD_DATAOUT)
1231 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE);
1232 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap);
1235 if (ac->ac_ccb_data != NULL) {
1236 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1237 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD);
1238 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1239 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE);
1240 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap);
1242 ac->ac_flags &= ~AMR_CMD_MAPPED;
1246 /********************************************************************************
1247 * Take a command and give it to the controller, returns 0 if successful, or
1248 * EBUSY if the command should be retried later.
1251 amr_start(struct amr_command *ac)
1253 struct amr_softc *sc = ac->ac_sc;
1258 /* mark command as busy so that polling consumer can tell */
1259 ac->ac_flags |= AMR_CMD_BUSY;
1261 /* get a command slot (freed in amr_done) */
1262 if (amr_getslot(ac))
1265 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1268 /* mark the new mailbox we are going to copy in as busy */
1269 ac->ac_mailbox.mb_busy = 1;
1271 /* clear the poll/ack fields in the mailbox */
1272 sc->amr_mailbox->mb_poll = 0;
1273 sc->amr_mailbox->mb_ack = 0;
1276 * Save the slot number so that we can locate this command when complete.
1277 * Note that ident = 0 seems to be special, so we don't use it.
1279 ac->ac_mailbox.mb_ident = ac->ac_slot + 1;
1282 * Spin waiting for the mailbox, give up after ~1 second. We expect the
1283 * controller to be able to handle our I/O.
1285 * XXX perhaps we should wait for less time, and count on the deferred command
1286 * handling to deal with retries?
1288 debug(4, "wait for mailbox");
1289 for (i = 10000, done = 0; (i > 0) && !done; i--) {
1292 /* is the mailbox free? */
1293 if (sc->amr_mailbox->mb_busy == 0) {
1294 debug(4, "got mailbox");
1295 sc->amr_mailbox64->mb64_segment = 0;
1296 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1299 /* not free, spin waiting */
1301 debug(4, "busy flag %x\n", sc->amr_mailbox->mb_busy);
1302 /* this is somewhat ugly */
1305 splx(s); /* drop spl to allow completion interrupts */
1309 * Now give the command to the controller
1312 if (sc->amr_submit_command(sc)) {
1313 /* the controller wasn't ready to take the command, forget that we tried to post it */
1314 sc->amr_mailbox->mb_busy = 0;
1317 debug(3, "posted command");
1322 * The controller wouldn't take the command. Return the command as busy
1323 * so that it is retried later.
1328 /********************************************************************************
1329 * Extract one or more completed commands from the controller (sc)
1331 * Returns nonzero if any commands on the work queue were marked as completed.
1334 amr_done(struct amr_softc *sc)
1336 struct amr_command *ac;
1337 struct amr_mailbox mbox;
1342 /* See if there's anything for us to do */
1345 /* loop collecting completed commands */
1347 /* poll for a completed command's identifier and status */
1348 if (sc->amr_get_work(sc, &mbox)) {
1351 /* iterate over completed commands in this result */
1352 for (i = 0; i < mbox.mb_nstatus; i++) {
1353 /* get pointer to busy command */
1354 idx = mbox.mb_completed[i] - 1;
1355 ac = sc->amr_busycmd[idx];
1357 /* really a busy command? */
1360 /* pull the command from the busy index */
1361 sc->amr_busycmd[idx] = NULL;
1362 sc->amr_busyslots--;
1364 /* save status for later use */
1365 ac->ac_status = mbox.mb_status;
1366 amr_enqueue_completed(ac);
1367 debug(3, "completed command with status %x", mbox.mb_status);
1369 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1373 break; /* no work */
1377 /* if we've completed any commands, try posting some more */
1381 /* handle completion and timeouts */
1382 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1383 if (sc->amr_state & AMR_STATE_INTEN)
1384 taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete);
1387 amr_complete(sc, 0);
1392 /********************************************************************************
1393 * Do completion processing on done commands on (sc)
1396 amr_complete(void *context, int pending)
1398 struct amr_softc *sc = (struct amr_softc *)context;
1399 struct amr_command *ac;
1403 /* pull completed commands off the queue */
1405 ac = amr_dequeue_completed(sc);
1409 /* unmap the command's data buffer */
1412 /* unbusy the command */
1413 ac->ac_flags &= ~AMR_CMD_BUSY;
1416 * Is there a completion handler?
1418 if (ac->ac_complete != NULL) {
1419 ac->ac_complete(ac);
1422 * Is someone sleeping on this one?
1424 } else if (ac->ac_flags & AMR_CMD_SLEEP) {
1428 if(!sc->amr_busyslots) {
1434 /********************************************************************************
1435 ********************************************************************************
1436 Command Buffer Management
1437 ********************************************************************************
1438 ********************************************************************************/
1440 /********************************************************************************
1441 * Get a new command buffer.
1443 * This may return NULL in low-memory cases.
1445 * If possible, we recycle a command buffer that's been used before.
1447 struct amr_command *
1448 amr_alloccmd(struct amr_softc *sc)
1450 struct amr_command *ac;
1454 ac = amr_dequeue_free(sc);
1456 amr_alloccmd_cluster(sc);
1457 ac = amr_dequeue_free(sc);
1462 /* clear out significant fields */
1465 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1469 ac->ac_ccb_data = NULL;
1470 ac->ac_complete = NULL;
1474 /********************************************************************************
1475 * Release a command buffer for recycling.
1478 amr_releasecmd(struct amr_command *ac)
1482 amr_enqueue_free(ac);
1485 /********************************************************************************
1486 * Allocate a new command cluster and initialise it.
1489 amr_alloccmd_cluster(struct amr_softc *sc)
1491 struct amr_command_cluster *acc;
1492 struct amr_command *ac;
1495 acc = malloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_INTWAIT);
1497 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1499 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1500 ac = &acc->acc_command[i];
1501 bzero(ac, sizeof(*ac));
1503 if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) &&
1504 !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap))
1509 /********************************************************************************
1510 * Free a command cluster
1513 amr_freecmd_cluster(struct amr_command_cluster *acc)
1515 struct amr_softc *sc = acc->acc_command[0].ac_sc;
1518 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++)
1519 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
1520 free(acc, M_DEVBUF);
1523 /********************************************************************************
1524 ********************************************************************************
1525 Interface-specific Shims
1526 ********************************************************************************
1527 ********************************************************************************/
1529 /********************************************************************************
1530 * Tell the controller that the mailbox contains a valid command
1533 amr_quartz_submit_command(struct amr_softc *sc)
1537 if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT)
1539 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1544 amr_std_submit_command(struct amr_softc *sc)
1548 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG)
1550 AMR_SPOST_COMMAND(sc);
1554 /********************************************************************************
1555 * Claim any work that the controller has completed; acknowledge completion,
1556 * save details of the completion in (mbsave)
1559 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1569 /* work waiting for us? */
1570 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
1572 /* save mailbox, which contains a list of completed commands */
1573 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1575 /* acknowledge interrupt */
1576 AMR_QPUT_ODB(sc, AMR_QODB_READY);
1578 /* acknowledge that we have the commands */
1579 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1581 #ifndef AMR_QUARTZ_GOFASTER
1583 * This waits for the controller to notice that we've taken the
1584 * command from it. It's very inefficient, and we shouldn't do it,
1585 * but if we remove this code, we stop completing commands under
1588 * Peter J says we shouldn't do this. The documentation says we
1589 * should. Who is right?
1591 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1592 ; /* XXX aiee! what if it dies? */
1595 worked = 1; /* got some work */
1603 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1613 /* check for valid interrupt status */
1614 istat = AMR_SGET_ISTAT(sc);
1615 if ((istat & AMR_SINTR_VALID) != 0) {
1616 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
1618 /* save mailbox, which contains a list of completed commands */
1619 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1621 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
1629 /********************************************************************************
1630 * Notify the controller of the mailbox location.
1633 amr_std_attach_mailbox(struct amr_softc *sc)
1636 /* program the mailbox physical address */
1637 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
1638 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
1639 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
1640 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
1641 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
1643 /* clear any outstanding interrupt and enable interrupts proper */
1644 AMR_SACK_INTERRUPT(sc);
1645 AMR_SENABLE_INTR(sc);
1648 #ifdef AMR_BOARD_INIT
1649 /********************************************************************************
1650 * Initialise the controller
1653 amr_quartz_init(struct amr_softc *sc)
1655 int status, ostatus;
1657 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
1662 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
1663 if (status != ostatus) {
1664 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
1668 case AMR_QINIT_NOMEM:
1671 case AMR_QINIT_SCAN:
1672 /* XXX we could print channel/target here */
1680 amr_std_init(struct amr_softc *sc)
1682 int status, ostatus;
1684 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
1689 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
1690 if (status != ostatus) {
1691 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
1695 case AMR_SINIT_NOMEM:
1698 case AMR_SINIT_INPROG:
1699 /* XXX we could print channel/target here? */
1707 /********************************************************************************
1708 ********************************************************************************
1710 ********************************************************************************
1711 ********************************************************************************/
1713 /********************************************************************************
1714 * Identify the controller and print some information about it.
1717 amr_describe_controller(struct amr_softc *sc)
1719 struct amr_prodinfo *ap;
1720 struct amr_enquiry *ae;
1724 * Try to get 40LD product info, which tells us what the card is labelled as.
1726 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) {
1727 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
1728 ap->ap_product, ap->ap_firmware, ap->ap_bios,
1736 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
1738 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) {
1739 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
1741 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) {
1744 * Try to work it out based on the PCI signatures.
1746 switch (pci_get_device(sc->amr_dev)) {
1748 prod = "Series 428";
1751 prod = "Series 434";
1754 prod = "unknown controller";
1758 prod = "unsupported controller";
1762 * HP NetRaid controllers have a special encoding of the firmware and
1763 * BIOS versions. The AMI version seems to have it as strings whereas
1764 * the HP version does it with a leading uppercase character and two
1768 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
1769 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
1770 ae->ae_adapter.aa_firmware[1] < ' ' &&
1771 ae->ae_adapter.aa_firmware[0] < ' ' &&
1772 ae->ae_adapter.aa_bios[2] >= 'A' &&
1773 ae->ae_adapter.aa_bios[2] <= 'Z' &&
1774 ae->ae_adapter.aa_bios[1] < ' ' &&
1775 ae->ae_adapter.aa_bios[0] < ' ') {
1777 /* this looks like we have an HP NetRaid version of the MegaRaid */
1779 if(ae->ae_signature == AMR_SIG_438) {
1780 /* the AMI 438 is a NetRaid 3si in HP-land */
1781 prod = "HP NetRaid 3si";
1784 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
1785 prod, ae->ae_adapter.aa_firmware[2],
1786 ae->ae_adapter.aa_firmware[1],
1787 ae->ae_adapter.aa_firmware[0],
1788 ae->ae_adapter.aa_bios[2],
1789 ae->ae_adapter.aa_bios[1],
1790 ae->ae_adapter.aa_bios[0],
1791 ae->ae_adapter.aa_memorysize);
1793 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
1794 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
1795 ae->ae_adapter.aa_memorysize);
1801 amr_dump_blocks(struct amr_softc *sc, int unit, u_int32_t lba, void *data, int blks)
1804 struct amr_command *ac;
1809 sc->amr_state &= ~AMR_STATE_INTEN;
1811 /* get ourselves a command buffer */
1812 if ((ac = amr_alloccmd(sc)) == NULL)
1814 /* set command flags */
1815 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1817 /* point the command at our data */
1819 ac->ac_length = blks * AMR_BLKSIZE;
1821 /* build the command proper */
1822 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
1823 ac->ac_mailbox.mb_blkcount = blks;
1824 ac->ac_mailbox.mb_lba = lba;
1825 ac->ac_mailbox.mb_drive = unit;
1827 /* can't assume that interrupts are going to work here, so play it safe */
1828 if (sc->amr_poll_command(ac))
1830 error = ac->ac_status;
1836 sc->amr_state |= AMR_STATE_INTEN;
1843 /********************************************************************************
1844 * Print the command (ac) in human-readable format
1848 amr_printcommand(struct amr_command *ac)
1850 struct amr_softc *sc = ac->ac_sc;
1851 struct amr_sgentry *sg;
1854 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
1855 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
1856 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
1857 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
1858 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
1859 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
1860 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
1861 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
1863 /* get base address of s/g table */
1864 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1865 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
1866 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);