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 1.21 2006/09/05 00:55:41 dillon Exp $
60 * Driver for the AMI MegaRaid family of controllers.
63 #include <sys/param.h>
64 #include <sys/systm.h>
65 #include <sys/malloc.h>
66 #include <sys/kernel.h>
68 #include "amr_compat.h"
71 #include <sys/devicestat.h>
75 #include <machine/bus_memio.h>
76 #include <machine/bus_pio.h>
77 #include <machine/bus.h>
78 #include <machine/resource.h>
81 #include <bus/pci/pcireg.h>
82 #include <bus/pci/pcivar.h>
87 #define AMR_DEFINE_TABLES
88 #include "amr_tables.h"
90 #define AMR_CDEV_MAJOR 132
92 static d_open_t amr_open;
93 static d_close_t amr_close;
94 static d_ioctl_t amr_ioctl;
96 static struct dev_ops amr_ops = {
97 { "amr", AMR_CDEV_MAJOR, 0 },
104 * Initialisation, bus interface.
106 static void amr_startup(void *arg);
111 static int amr_query_controller(struct amr_softc *sc);
112 static void *amr_enquiry(struct amr_softc *sc, size_t bufsize,
113 u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual);
114 static void amr_completeio(struct amr_command *ac);
115 static int amr_support_ext_cdb(struct amr_softc *sc);
118 * Command buffer allocation.
120 static void amr_alloccmd_cluster(struct amr_softc *sc);
121 static void amr_freecmd_cluster(struct amr_command_cluster *acc);
124 * Command processing.
126 static int amr_bio_command(struct amr_softc *sc, struct amr_command **acp);
127 static int amr_wait_command(struct amr_command *ac);
128 static int amr_getslot(struct amr_command *ac);
129 static void amr_mapcmd(struct amr_command *ac);
130 static void amr_unmapcmd(struct amr_command *ac);
131 static int amr_start(struct amr_command *ac);
132 static void amr_complete(void *context, int pending);
137 static void amr_periodic(void *data);
140 * Interface-specific shims
142 static int amr_quartz_submit_command(struct amr_softc *sc);
143 static int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
144 static int amr_quartz_poll_command(struct amr_command *ac);
146 static int amr_std_submit_command(struct amr_softc *sc);
147 static int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
148 static int amr_std_poll_command(struct amr_command *ac);
149 static void amr_std_attach_mailbox(struct amr_softc *sc);
151 #ifdef AMR_BOARD_INIT
152 static int amr_quartz_init(struct amr_softc *sc);
153 static int amr_std_init(struct amr_softc *sc);
159 static void amr_describe_controller(struct amr_softc *sc);
162 static void amr_printcommand(struct amr_command *ac);
166 DECLARE_DUMMY_MODULE(amr);
168 /********************************************************************************
169 ********************************************************************************
171 ********************************************************************************
172 ********************************************************************************/
174 /********************************************************************************
175 ********************************************************************************
177 ********************************************************************************
178 ********************************************************************************/
180 /********************************************************************************
181 * Initialise the controller and softc.
184 amr_attach(struct amr_softc *sc)
190 * Initialise per-controller queues.
192 TAILQ_INIT(&sc->amr_completed);
193 TAILQ_INIT(&sc->amr_freecmds);
194 TAILQ_INIT(&sc->amr_cmd_clusters);
195 TAILQ_INIT(&sc->amr_ready);
196 bioq_init(&sc->amr_bioq);
198 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
200 * Initialise command-completion task.
202 TASK_INIT(&sc->amr_task_complete, 0, amr_complete, sc);
205 debug(2, "queue init done");
208 * Configure for this controller type.
210 if (AMR_IS_QUARTZ(sc)) {
211 sc->amr_submit_command = amr_quartz_submit_command;
212 sc->amr_get_work = amr_quartz_get_work;
213 sc->amr_poll_command = amr_quartz_poll_command;
215 sc->amr_submit_command = amr_std_submit_command;
216 sc->amr_get_work = amr_std_get_work;
217 sc->amr_poll_command = amr_std_poll_command;
218 amr_std_attach_mailbox(sc);
221 #ifdef AMR_BOARD_INIT
222 if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc))))
227 * Quiz controller for features and limits.
229 if (amr_query_controller(sc))
232 debug(2, "controller query complete");
235 * Attach our 'real' SCSI channels to CAM.
237 if (amr_cam_attach(sc))
239 debug(2, "CAM attach done");
242 * Create the control device.
244 dev_ops_add(&amr_ops, -1, device_get_unit(sc->amr_dev));
245 sc->amr_dev_t = make_dev(&amr_ops, device_get_unit(sc->amr_dev),
246 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
247 "amr%d", device_get_unit(sc->amr_dev));
248 sc->amr_dev_t->si_drv1 = sc;
249 reference_dev(sc->amr_dev_t);
252 * Schedule ourselves to bring the controller up once interrupts are
255 bzero(&sc->amr_ich, sizeof(struct intr_config_hook));
256 sc->amr_ich.ich_func = amr_startup;
257 sc->amr_ich.ich_arg = sc;
258 sc->amr_ich.ich_desc = "amr";
259 if (config_intrhook_establish(&sc->amr_ich) != 0) {
260 device_printf(sc->amr_dev, "can't establish configuration hook\n");
265 * Print a little information about the controller.
267 amr_describe_controller(sc);
269 debug(2, "attach complete");
273 /********************************************************************************
274 * Locate disk resources and attach children to them.
277 amr_startup(void *arg)
279 struct amr_softc *sc = (struct amr_softc *)arg;
280 struct amr_logdrive *dr;
284 callout_init(&sc->amr_timeout);
286 /* pull ourselves off the intrhook chain */
287 config_intrhook_disestablish(&sc->amr_ich);
289 /* get up-to-date drive information */
290 if (amr_query_controller(sc)) {
291 device_printf(sc->amr_dev, "can't scan controller for drives\n");
295 /* iterate over available drives */
296 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
297 /* are we already attached to this drive? */
298 if (dr->al_disk == 0) {
299 /* generate geometry information */
300 if (dr->al_size > 0x200000) { /* extended translation? */
307 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
309 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
310 if (dr->al_disk == 0)
311 device_printf(sc->amr_dev, "device_add_child failed\n");
312 device_set_ivars(dr->al_disk, dr);
316 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
317 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
319 /* mark controller back up */
320 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
322 /* interrupts will be enabled before we do anything more */
323 sc->amr_state |= AMR_STATE_INTEN;
326 * Start the timeout routine.
328 /* callout_reset(&sc->amr_timeout, hz, amr_periodic, sc); */
333 /*******************************************************************************
334 * Free resources associated with a controller instance
337 amr_free(struct amr_softc *sc)
339 struct amr_command_cluster *acc;
341 /* detach from CAM */
344 /* cancel status timeout */
345 callout_stop(&sc->amr_timeout);
347 /* throw away any command buffers */
348 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
349 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
350 amr_freecmd_cluster(acc);
353 /* destroy control device */
354 if( sc->amr_dev_t != (dev_t)NULL)
355 destroy_dev(sc->amr_dev_t);
356 dev_ops_remove(&amr_ops, -1, device_get_unit(sc->amr_dev));
359 /*******************************************************************************
360 * Receive a bio structure from a child device and queue it on a particular
361 * disk resource, then poke the disk resource to start as much work as it can.
364 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
368 amr_enqueue_bio(sc, bio);
373 /********************************************************************************
374 * Accept an open operation on the control device.
377 amr_open(struct dev_open_args *ap)
379 dev_t dev = ap->a_head.a_dev;
380 int unit = minor(dev);
381 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
385 sc->amr_state |= AMR_STATE_OPEN;
389 /********************************************************************************
390 * Accept the last close on the control device.
393 amr_close(struct dev_close_args *ap)
395 dev_t dev = ap->a_head.a_dev;
396 int unit = minor(dev);
397 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
401 sc->amr_state &= ~AMR_STATE_OPEN;
405 /********************************************************************************
406 * Handle controller-specific control operations.
409 amr_ioctl(struct dev_ioctl_args *ap)
411 dev_t dev = ap->a_head.a_dev;
412 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
413 int *arg = (int *)ap->a_data;
414 struct amr_user_ioctl *au = (struct amr_user_ioctl *)ap->a_data;
415 struct amr_command *ac;
416 struct amr_mailbox_ioctl *mbi;
417 struct amr_passthrough *apt;
430 debug(1, "AMR_IO_VERSION");
431 *arg = AMR_IO_VERSION_NUMBER;
435 debug(1, "AMR_IO_COMMAND 0x%x", au->au_cmd[0]);
436 /* handle inbound data buffer */
437 if (au->au_length != 0) {
438 if ((dp = kmalloc(au->au_length, M_DEVBUF, M_WAITOK)) == NULL) {
442 if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0)
444 debug(2, "copyin %ld bytes from %p -> %p", au->au_length, au->au_buffer, dp);
447 if ((ac = amr_alloccmd(sc)) == NULL) {
452 /* handle SCSI passthrough command */
453 if (au->au_cmd[0] == AMR_CMD_PASS) {
454 if ((apt = kmalloc(sizeof(*apt), M_DEVBUF, M_WAITOK | M_ZERO)) == NULL) {
460 apt->ap_cdb_length = au->au_cmd[2];
461 bcopy(&au->au_cmd[3], &apt->ap_cdb[0], apt->ap_cdb_length);
463 /* build passthrough */
464 apt->ap_timeout = au->au_cmd[apt->ap_cdb_length + 3] & 0x07;
465 apt->ap_ars = (au->au_cmd[apt->ap_cdb_length + 3] & 0x08) ? 1 : 0;
466 apt->ap_islogical = (au->au_cmd[apt->ap_cdb_length + 3] & 0x80) ? 1 : 0;
467 apt->ap_logical_drive_no = au->au_cmd[apt->ap_cdb_length + 4];
468 apt->ap_channel = au->au_cmd[apt->ap_cdb_length + 5];
469 apt->ap_scsi_id = au->au_cmd[apt->ap_cdb_length + 6];
470 apt->ap_request_sense_length = 14;
471 apt->ap_data_transfer_length = au->au_length;
472 /* XXX what about the request-sense area? does the caller want it? */
476 ac->ac_length = sizeof(*apt);
477 ac->ac_flags |= AMR_CMD_DATAOUT;
478 ac->ac_ccb_data = dp;
479 ac->ac_ccb_length = au->au_length;
480 if (au->au_direction & AMR_IO_READ)
481 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
482 if (au->au_direction & AMR_IO_WRITE)
483 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
485 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
488 /* direct command to controller */
489 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
491 /* copy pertinent mailbox items */
492 mbi->mb_command = au->au_cmd[0];
493 mbi->mb_channel = au->au_cmd[1];
494 mbi->mb_param = au->au_cmd[2];
495 mbi->mb_pad[0] = au->au_cmd[3];
496 mbi->mb_drive = au->au_cmd[4];
498 /* build the command */
500 ac->ac_length = au->au_length;
501 if (au->au_direction & AMR_IO_READ)
502 ac->ac_flags |= AMR_CMD_DATAIN;
503 if (au->au_direction & AMR_IO_WRITE)
504 ac->ac_flags |= AMR_CMD_DATAOUT;
507 /* run the command */
508 if ((error = amr_wait_command(ac)) != 0)
511 /* copy out data and set status */
512 if (au->au_length != 0)
513 error = copyout(dp, au->au_buffer, au->au_length);
514 debug(2, "copyout %ld bytes from %p -> %p", au->au_length, dp, au->au_buffer);
516 debug(2, "%16d", (int)dp);
517 au->au_status = ac->ac_status;
521 debug(1, "unknown ioctl 0x%lx", cmd);
529 kfree(apt, M_DEVBUF);
535 /********************************************************************************
536 ********************************************************************************
538 ********************************************************************************
539 ********************************************************************************/
541 /********************************************************************************
542 * Perform a periodic check of the controller status
545 amr_periodic(void *data)
547 struct amr_softc *sc = (struct amr_softc *)data;
551 /* XXX perform periodic status checks here */
553 /* compensate for missed interrupts */
557 callout_reset(&sc->amr_timeout, hz, amr_periodic, sc);
560 /********************************************************************************
561 ********************************************************************************
563 ********************************************************************************
564 ********************************************************************************/
566 /********************************************************************************
567 * Interrogate the controller for the operational parameters we require.
570 amr_query_controller(struct amr_softc *sc)
572 struct amr_enquiry3 *aex;
573 struct amr_prodinfo *ap;
574 struct amr_enquiry *ae;
578 * If we haven't found the real limit yet, let us have a couple of commands in
579 * order to be able to probe.
581 if (sc->amr_maxio == 0)
585 * Greater than 10 byte cdb support
587 sc->support_ext_cdb = amr_support_ext_cdb(sc);
589 if(sc->support_ext_cdb) {
590 debug(2,"supports extended CDBs.");
594 * Try to issue an ENQUIRY3 command
596 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
597 AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) {
600 * Fetch current state of logical drives.
602 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
603 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
604 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
605 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
606 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
607 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
609 kfree(aex, M_DEVBUF);
612 * Get product info for channel count.
614 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) {
615 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
618 sc->amr_maxdrives = 40;
619 sc->amr_maxchan = ap->ap_nschan;
620 sc->amr_maxio = ap->ap_maxio;
621 sc->amr_type |= AMR_TYPE_40LD;
626 /* failed, try the 8LD ENQUIRY commands */
627 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) {
628 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) {
629 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
632 ae->ae_signature = 0;
636 * Fetch current state of logical drives.
638 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
639 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
640 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
641 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
642 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
643 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
646 sc->amr_maxdrives = 8;
647 sc->amr_maxchan = ae->ae_adapter.aa_channels;
648 sc->amr_maxio = ae->ae_adapter.aa_maxio;
653 * Mark remaining drives as unused.
655 for (; ldrv < AMR_MAXLD; ldrv++)
656 sc->amr_drive[ldrv].al_size = 0xffffffff;
659 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
660 * the controller's reported value, and lockups have been seen when we do.
662 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
667 /********************************************************************************
668 * Run a generic enquiry-style command.
671 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual)
673 struct amr_command *ac;
683 /* get ourselves a command buffer */
684 if ((ac = amr_alloccmd(sc)) == NULL)
686 /* allocate the response structure */
687 result = kmalloc(bufsize, M_DEVBUF, M_INTWAIT);
688 /* set command flags */
689 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
691 /* point the command at our data */
692 ac->ac_data = result;
693 ac->ac_length = bufsize;
695 /* build the command proper */
696 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
701 /* can't assume that interrupts are going to work here, so play it safe */
702 if (sc->amr_poll_command(ac))
704 error = ac->ac_status;
709 if ((error != 0) && (result != NULL)) {
710 kfree(result, M_DEVBUF);
716 /********************************************************************************
717 * Flush the controller's internal cache, return status.
720 amr_flush(struct amr_softc *sc)
722 struct amr_command *ac;
725 /* get ourselves a command buffer */
727 if ((ac = amr_alloccmd(sc)) == NULL)
729 /* set command flags */
730 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
732 /* build the command proper */
733 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
735 /* we have to poll, as the system may be going down or otherwise damaged */
736 if (sc->amr_poll_command(ac))
738 error = ac->ac_status;
746 /********************************************************************************
747 * Detect extented cdb >> greater than 10 byte cdb support
748 * returns '1' means this support exist
749 * returns '0' means this support doesn't exist
752 amr_support_ext_cdb(struct amr_softc *sc)
754 struct amr_command *ac;
758 /* get ourselves a command buffer */
760 if ((ac = amr_alloccmd(sc)) == NULL)
762 /* set command flags */
763 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
765 /* build the command proper */
766 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
771 /* we have to poll, as the system may be going down or otherwise damaged */
772 if (sc->amr_poll_command(ac))
774 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
784 /********************************************************************************
785 * Try to find I/O work for the controller from one or more of the work queues.
787 * We make the assumption that if the controller is not ready to take a command
788 * at some given time, it will generate an interrupt at some later time when
792 amr_startio(struct amr_softc *sc)
794 struct amr_command *ac;
796 /* spin until something prevents us from doing any work */
799 /* try to get a ready command */
800 ac = amr_dequeue_ready(sc);
802 /* if that failed, build a command from a bio */
804 (void)amr_bio_command(sc, &ac);
806 /* if that failed, build a command from a ccb */
808 (void)amr_cam_command(sc, &ac);
810 /* if we don't have anything to do, give up */
814 /* try to give the command to the controller; if this fails save it for later and give up */
816 debug(2, "controller busy, command deferred");
817 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
823 /********************************************************************************
824 * Handle completion of an I/O command.
827 amr_completeio(struct amr_command *ac)
829 struct amr_softc *sc = ac->ac_sc;
831 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
832 ac->ac_bio->bio_buf->b_error = EIO;
833 ac->ac_bio->bio_buf->b_flags |= B_ERROR;
835 device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status);
836 /* amr_printcommand(ac);*/
838 amrd_intr(ac->ac_bio);
842 /********************************************************************************
843 ********************************************************************************
845 ********************************************************************************
846 ********************************************************************************/
848 /********************************************************************************
849 * Convert a bio off the top of the bio queue into a command.
852 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
854 struct amr_command *ac;
855 struct amrd_softc *amrd;
866 /* get a bio to work on */
867 if ((bio = amr_dequeue_bio(sc)) == NULL)
871 if ((ac = amr_alloccmd(sc)) == NULL) {
876 /* connect the bio to the command */
877 ac->ac_complete = amr_completeio;
879 ac->ac_data = bio->bio_buf->b_data;
880 ac->ac_length = bio->bio_buf->b_bcount;
881 if (bio->bio_buf->b_cmd == BUF_CMD_READ) {
882 ac->ac_flags |= AMR_CMD_DATAIN;
885 ac->ac_flags |= AMR_CMD_DATAOUT;
886 cmd = AMR_CMD_LWRITE;
888 amrd = (struct amrd_softc *)bio->bio_driver_info;
889 driveno = amrd->amrd_drive - sc->amr_drive;
890 blkcount = (bio->bio_buf->b_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
891 lba = bio->bio_offset / AMR_BLKSIZE;
893 ac->ac_mailbox.mb_command = cmd;
894 ac->ac_mailbox.mb_blkcount = blkcount;
895 ac->ac_mailbox.mb_lba = lba;
896 ac->ac_mailbox.mb_drive = driveno;
897 /* we fill in the s/g related data when the command is mapped */
899 if ((lba + blkcount) > sc->amr_drive[driveno].al_size)
900 device_printf(sc->amr_dev, "I/O beyond end of unit (%ud,%d > %lu)\n",
902 (u_long)sc->amr_drive[driveno].al_size);
908 if (bio != NULL) /* this breaks ordering... */
909 amr_enqueue_bio(sc, bio);
915 /********************************************************************************
916 * Take a command, submit it to the controller and sleep until it completes
917 * or fails. Interrupts must be enabled, returns nonzero on error.
920 amr_wait_command(struct amr_command *ac)
926 ac->ac_complete = NULL;
927 ac->ac_flags |= AMR_CMD_SLEEP;
928 if ((error = amr_start(ac)) != 0)
932 /* XXX better timeout? */
933 while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) {
934 tsleep(ac, PCATCH, "amrwcmd", hz);
939 /********************************************************************************
940 * Take a command, submit it to the controller and busy-wait for it to return.
941 * Returns nonzero on error. Can be safely called with interrupts enabled.
944 amr_std_poll_command(struct amr_command *ac)
946 struct amr_softc *sc = ac->ac_sc;
951 ac->ac_complete = NULL;
952 if ((error = amr_start(ac)) != 0)
958 * Poll for completion, although the interrupt handler may beat us to it.
959 * Note that the timeout here is somewhat arbitrary.
963 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
964 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
967 /* XXX the slot is now marked permanently busy */
969 device_printf(sc->amr_dev, "polled command timeout\n");
974 /********************************************************************************
975 * Take a command, submit it to the controller and busy-wait for it to return.
976 * Returns nonzero on error. Can be safely called with interrupts enabled.
979 amr_quartz_poll_command(struct amr_command *ac)
981 struct amr_softc *sc = ac->ac_sc;
986 /* now we have a slot, we can map the command (unmapped in amr_complete) */
991 if (sc->amr_state & AMR_STATE_INTEN) {
993 while (sc->amr_busyslots) {
994 tsleep(sc, PCATCH, "amrpoll", hz);
1000 if(sc->amr_busyslots) {
1001 device_printf(sc->amr_dev, "adapter is busy\n");
1009 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1011 /* clear the poll/ack fields in the mailbox */
1012 sc->amr_mailbox->mb_ident = 0xFE;
1013 sc->amr_mailbox->mb_nstatus = 0xFF;
1014 sc->amr_mailbox->mb_status = 0xFF;
1015 sc->amr_mailbox->mb_poll = 0;
1016 sc->amr_mailbox->mb_ack = 0;
1017 sc->amr_mailbox->mb_busy = 1;
1019 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1021 while(sc->amr_mailbox->mb_nstatus == 0xFF);
1022 while(sc->amr_mailbox->mb_status == 0xFF);
1023 ac->ac_status=sc->amr_mailbox->mb_status;
1024 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1025 while(sc->amr_mailbox->mb_poll != 0x77);
1026 sc->amr_mailbox->mb_poll = 0;
1027 sc->amr_mailbox->mb_ack = 0x77;
1029 /* acknowledge that we have the commands */
1030 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1031 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK);
1035 /* unmap the command's data buffer */
1041 /********************************************************************************
1042 * Get a free command slot for a command if it doesn't already have one.
1044 * May be safely called multiple times for a given command.
1047 amr_getslot(struct amr_command *ac)
1049 struct amr_softc *sc = ac->ac_sc;
1050 int slot, limit, error;
1054 /* if the command already has a slot, don't try to give it another one */
1055 if (ac->ac_slot != 0)
1058 /* enforce slot usage limit */
1059 limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4;
1060 if (sc->amr_busyslots > limit)
1064 * Allocate a slot. XXX linear scan is slow
1068 for (slot = 0; slot < sc->amr_maxio; slot++) {
1069 if (sc->amr_busycmd[slot] == NULL) {
1070 sc->amr_busycmd[slot] = ac;
1071 sc->amr_busyslots++;
1082 /********************************************************************************
1083 * Map/unmap (ac)'s data in the controller's addressable space as required.
1085 * These functions may be safely called multiple times on a given command.
1088 amr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1090 struct amr_command *ac = (struct amr_command *)arg;
1091 struct amr_softc *sc = ac->ac_sc;
1092 struct amr_sgentry *sg;
1098 /* get base address of s/g table */
1099 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1101 /* save data physical address */
1102 ac->ac_dataphys = segs[0].ds_addr;
1104 /* for AMR_CMD_CONFIG the s/g count goes elsewhere */
1105 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG) {
1106 sgc = &(((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param);
1108 sgc = &ac->ac_mailbox.mb_nsgelem;
1111 /* decide whether we need to populate the s/g table */
1112 if (nsegments < 2) {
1114 ac->ac_mailbox.mb_nsgelem = 0;
1115 ac->ac_mailbox.mb_physaddr = ac->ac_dataphys;
1117 ac->ac_mailbox.mb_nsgelem = nsegments;
1119 ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1120 for (i = 0; i < nsegments; i++, sg++) {
1121 sg->sg_addr = segs[i].ds_addr;
1122 sg->sg_count = segs[i].ds_len;
1128 amr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1130 struct amr_command *ac = (struct amr_command *)arg;
1131 struct amr_softc *sc = ac->ac_sc;
1132 struct amr_sgentry *sg;
1133 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
1134 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
1137 /* get base address of s/g table */
1138 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1140 /* decide whether we need to populate the s/g table */
1141 if( ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS ) {
1142 if (nsegments < 2) {
1143 aep->ap_no_sg_elements = 0;
1144 aep->ap_data_transfer_address = segs[0].ds_addr;
1146 /* save s/g table information in passthrough */
1147 aep->ap_no_sg_elements = nsegments;
1148 aep->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1149 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1150 for (i = 0; i < nsegments; i++, sg++) {
1151 sg->sg_addr = segs[i].ds_addr;
1152 sg->sg_count = segs[i].ds_len;
1153 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1156 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1157 aep->ap_no_sg_elements, aep->ap_data_transfer_address, ac->ac_dataphys);
1159 if (nsegments < 2) {
1160 ap->ap_no_sg_elements = 0;
1161 ap->ap_data_transfer_address = segs[0].ds_addr;
1163 /* save s/g table information in passthrough */
1164 ap->ap_no_sg_elements = nsegments;
1165 ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1166 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1167 for (i = 0; i < nsegments; i++, sg++) {
1168 sg->sg_addr = segs[i].ds_addr;
1169 sg->sg_count = segs[i].ds_len;
1170 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1173 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1174 ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys);
1179 amr_mapcmd(struct amr_command *ac)
1181 struct amr_softc *sc = ac->ac_sc;
1185 /* if the command involves data at all, and hasn't been mapped */
1186 if (!(ac->ac_flags & AMR_CMD_MAPPED)) {
1188 if (ac->ac_data != NULL) {
1189 /* map the data buffers into bus space and build the s/g list */
1190 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length,
1191 amr_setup_dmamap, ac, 0);
1192 if (ac->ac_flags & AMR_CMD_DATAIN)
1193 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD);
1194 if (ac->ac_flags & AMR_CMD_DATAOUT)
1195 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE);
1198 if (ac->ac_ccb_data != NULL) {
1199 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length,
1200 amr_setup_ccbmap, ac, 0);
1201 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1202 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD);
1203 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1204 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE);
1206 ac->ac_flags |= AMR_CMD_MAPPED;
1211 amr_unmapcmd(struct amr_command *ac)
1213 struct amr_softc *sc = ac->ac_sc;
1217 /* if the command involved data at all and was mapped */
1218 if (ac->ac_flags & AMR_CMD_MAPPED) {
1220 if (ac->ac_data != NULL) {
1221 if (ac->ac_flags & AMR_CMD_DATAIN)
1222 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD);
1223 if (ac->ac_flags & AMR_CMD_DATAOUT)
1224 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE);
1225 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap);
1228 if (ac->ac_ccb_data != NULL) {
1229 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1230 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD);
1231 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1232 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE);
1233 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap);
1235 ac->ac_flags &= ~AMR_CMD_MAPPED;
1239 /********************************************************************************
1240 * Take a command and give it to the controller, returns 0 if successful, or
1241 * EBUSY if the command should be retried later.
1244 amr_start(struct amr_command *ac)
1246 struct amr_softc *sc = ac->ac_sc;
1251 /* mark command as busy so that polling consumer can tell */
1252 ac->ac_flags |= AMR_CMD_BUSY;
1254 /* get a command slot (freed in amr_done) */
1255 if (amr_getslot(ac))
1258 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1261 /* mark the new mailbox we are going to copy in as busy */
1262 ac->ac_mailbox.mb_busy = 1;
1264 /* clear the poll/ack fields in the mailbox */
1265 sc->amr_mailbox->mb_poll = 0;
1266 sc->amr_mailbox->mb_ack = 0;
1269 * Save the slot number so that we can locate this command when complete.
1270 * Note that ident = 0 seems to be special, so we don't use it.
1272 ac->ac_mailbox.mb_ident = ac->ac_slot + 1;
1275 * Spin waiting for the mailbox, give up after ~1 second. We expect the
1276 * controller to be able to handle our I/O.
1278 * XXX perhaps we should wait for less time, and count on the deferred command
1279 * handling to deal with retries?
1281 debug(4, "wait for mailbox");
1282 for (i = 10000, done = 0; (i > 0) && !done; i--) {
1285 /* is the mailbox free? */
1286 if (sc->amr_mailbox->mb_busy == 0) {
1287 debug(4, "got mailbox");
1288 sc->amr_mailbox64->mb64_segment = 0;
1289 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1292 /* not free, spin waiting */
1294 debug(4, "busy flag %x\n", sc->amr_mailbox->mb_busy);
1295 /* this is somewhat ugly */
1302 * Now give the command to the controller
1305 if (sc->amr_submit_command(sc)) {
1306 /* the controller wasn't ready to take the command, forget that we tried to post it */
1307 sc->amr_mailbox->mb_busy = 0;
1310 debug(3, "posted command");
1315 * The controller wouldn't take the command. Return the command as busy
1316 * so that it is retried later.
1321 /********************************************************************************
1322 * Extract one or more completed commands from the controller (sc)
1324 * Returns nonzero if any commands on the work queue were marked as completed.
1327 amr_done(struct amr_softc *sc)
1329 struct amr_command *ac;
1330 struct amr_mailbox mbox;
1335 /* See if there's anything for us to do */
1338 /* loop collecting completed commands */
1340 /* poll for a completed command's identifier and status */
1341 if (sc->amr_get_work(sc, &mbox)) {
1344 /* iterate over completed commands in this result */
1345 for (i = 0; i < mbox.mb_nstatus; i++) {
1346 /* get pointer to busy command */
1347 idx = mbox.mb_completed[i] - 1;
1348 ac = sc->amr_busycmd[idx];
1350 /* really a busy command? */
1353 /* pull the command from the busy index */
1354 sc->amr_busycmd[idx] = NULL;
1355 sc->amr_busyslots--;
1357 /* save status for later use */
1358 ac->ac_status = mbox.mb_status;
1359 amr_enqueue_completed(ac);
1360 debug(3, "completed command with status %x", mbox.mb_status);
1362 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1366 break; /* no work */
1370 /* if we've completed any commands, try posting some more */
1374 /* handle completion and timeouts */
1375 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1376 if (sc->amr_state & AMR_STATE_INTEN)
1377 taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete);
1380 amr_complete(sc, 0);
1385 /********************************************************************************
1386 * Do completion processing on done commands on (sc)
1389 amr_complete(void *context, int pending)
1391 struct amr_softc *sc = (struct amr_softc *)context;
1392 struct amr_command *ac;
1396 /* pull completed commands off the queue */
1398 ac = amr_dequeue_completed(sc);
1402 /* unmap the command's data buffer */
1405 /* unbusy the command */
1406 ac->ac_flags &= ~AMR_CMD_BUSY;
1409 * Is there a completion handler?
1411 if (ac->ac_complete != NULL) {
1412 ac->ac_complete(ac);
1415 * Is someone sleeping on this one?
1417 } else if (ac->ac_flags & AMR_CMD_SLEEP) {
1421 if(!sc->amr_busyslots) {
1427 /********************************************************************************
1428 ********************************************************************************
1429 Command Buffer Management
1430 ********************************************************************************
1431 ********************************************************************************/
1433 /********************************************************************************
1434 * Get a new command buffer.
1436 * This may return NULL in low-memory cases.
1438 * If possible, we recycle a command buffer that's been used before.
1440 struct amr_command *
1441 amr_alloccmd(struct amr_softc *sc)
1443 struct amr_command *ac;
1447 ac = amr_dequeue_free(sc);
1449 amr_alloccmd_cluster(sc);
1450 ac = amr_dequeue_free(sc);
1455 /* clear out significant fields */
1458 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1462 ac->ac_ccb_data = NULL;
1463 ac->ac_complete = NULL;
1467 /********************************************************************************
1468 * Release a command buffer for recycling.
1471 amr_releasecmd(struct amr_command *ac)
1475 amr_enqueue_free(ac);
1478 /********************************************************************************
1479 * Allocate a new command cluster and initialise it.
1482 amr_alloccmd_cluster(struct amr_softc *sc)
1484 struct amr_command_cluster *acc;
1485 struct amr_command *ac;
1488 acc = kmalloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_INTWAIT);
1490 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1492 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1493 ac = &acc->acc_command[i];
1494 bzero(ac, sizeof(*ac));
1496 if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) &&
1497 !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap))
1502 /********************************************************************************
1503 * Free a command cluster
1506 amr_freecmd_cluster(struct amr_command_cluster *acc)
1508 struct amr_softc *sc = acc->acc_command[0].ac_sc;
1511 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++)
1512 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
1513 kfree(acc, M_DEVBUF);
1516 /********************************************************************************
1517 ********************************************************************************
1518 Interface-specific Shims
1519 ********************************************************************************
1520 ********************************************************************************/
1522 /********************************************************************************
1523 * Tell the controller that the mailbox contains a valid command
1526 amr_quartz_submit_command(struct amr_softc *sc)
1530 if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT)
1532 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1537 amr_std_submit_command(struct amr_softc *sc)
1541 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG)
1543 AMR_SPOST_COMMAND(sc);
1547 /********************************************************************************
1548 * Claim any work that the controller has completed; acknowledge completion,
1549 * save details of the completion in (mbsave)
1552 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1562 /* work waiting for us? */
1563 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
1565 /* save mailbox, which contains a list of completed commands */
1566 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1568 /* acknowledge interrupt */
1569 AMR_QPUT_ODB(sc, AMR_QODB_READY);
1571 /* acknowledge that we have the commands */
1572 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1574 #ifndef AMR_QUARTZ_GOFASTER
1576 * This waits for the controller to notice that we've taken the
1577 * command from it. It's very inefficient, and we shouldn't do it,
1578 * but if we remove this code, we stop completing commands under
1581 * Peter J says we shouldn't do this. The documentation says we
1582 * should. Who is right?
1584 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1585 ; /* XXX aiee! what if it dies? */
1588 worked = 1; /* got some work */
1596 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1606 /* check for valid interrupt status */
1607 istat = AMR_SGET_ISTAT(sc);
1608 if ((istat & AMR_SINTR_VALID) != 0) {
1609 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
1611 /* save mailbox, which contains a list of completed commands */
1612 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1614 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
1622 /********************************************************************************
1623 * Notify the controller of the mailbox location.
1626 amr_std_attach_mailbox(struct amr_softc *sc)
1629 /* program the mailbox physical address */
1630 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
1631 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
1632 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
1633 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
1634 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
1636 /* clear any outstanding interrupt and enable interrupts proper */
1637 AMR_SACK_INTERRUPT(sc);
1638 AMR_SENABLE_INTR(sc);
1641 #ifdef AMR_BOARD_INIT
1642 /********************************************************************************
1643 * Initialise the controller
1646 amr_quartz_init(struct amr_softc *sc)
1648 int status, ostatus;
1650 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
1655 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
1656 if (status != ostatus) {
1657 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
1661 case AMR_QINIT_NOMEM:
1664 case AMR_QINIT_SCAN:
1665 /* XXX we could print channel/target here */
1673 amr_std_init(struct amr_softc *sc)
1675 int status, ostatus;
1677 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
1682 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
1683 if (status != ostatus) {
1684 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
1688 case AMR_SINIT_NOMEM:
1691 case AMR_SINIT_INPROG:
1692 /* XXX we could print channel/target here? */
1700 /********************************************************************************
1701 ********************************************************************************
1703 ********************************************************************************
1704 ********************************************************************************/
1706 /********************************************************************************
1707 * Identify the controller and print some information about it.
1710 amr_describe_controller(struct amr_softc *sc)
1712 struct amr_prodinfo *ap;
1713 struct amr_enquiry *ae;
1717 * Try to get 40LD product info, which tells us what the card is labelled as.
1719 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) {
1720 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
1721 ap->ap_product, ap->ap_firmware, ap->ap_bios,
1724 kfree(ap, M_DEVBUF);
1729 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
1731 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) {
1732 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
1734 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) {
1737 * Try to work it out based on the PCI signatures.
1739 switch (pci_get_device(sc->amr_dev)) {
1741 prod = "Series 428";
1744 prod = "Series 434";
1747 prod = "unknown controller";
1751 prod = "unsupported controller";
1755 * HP NetRaid controllers have a special encoding of the firmware and
1756 * BIOS versions. The AMI version seems to have it as strings whereas
1757 * the HP version does it with a leading uppercase character and two
1761 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
1762 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
1763 ae->ae_adapter.aa_firmware[1] < ' ' &&
1764 ae->ae_adapter.aa_firmware[0] < ' ' &&
1765 ae->ae_adapter.aa_bios[2] >= 'A' &&
1766 ae->ae_adapter.aa_bios[2] <= 'Z' &&
1767 ae->ae_adapter.aa_bios[1] < ' ' &&
1768 ae->ae_adapter.aa_bios[0] < ' ') {
1770 /* this looks like we have an HP NetRaid version of the MegaRaid */
1772 if(ae->ae_signature == AMR_SIG_438) {
1773 /* the AMI 438 is a NetRaid 3si in HP-land */
1774 prod = "HP NetRaid 3si";
1777 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
1778 prod, ae->ae_adapter.aa_firmware[2],
1779 ae->ae_adapter.aa_firmware[1],
1780 ae->ae_adapter.aa_firmware[0],
1781 ae->ae_adapter.aa_bios[2],
1782 ae->ae_adapter.aa_bios[1],
1783 ae->ae_adapter.aa_bios[0],
1784 ae->ae_adapter.aa_memorysize);
1786 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
1787 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
1788 ae->ae_adapter.aa_memorysize);
1790 kfree(ae, M_DEVBUF);
1794 amr_dump_blocks(struct amr_softc *sc, int unit, u_int32_t lba, void *data, int blks)
1797 struct amr_command *ac;
1802 sc->amr_state &= ~AMR_STATE_INTEN;
1804 /* get ourselves a command buffer */
1805 if ((ac = amr_alloccmd(sc)) == NULL)
1807 /* set command flags */
1808 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1810 /* point the command at our data */
1812 ac->ac_length = blks * AMR_BLKSIZE;
1814 /* build the command proper */
1815 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
1816 ac->ac_mailbox.mb_blkcount = blks;
1817 ac->ac_mailbox.mb_lba = lba;
1818 ac->ac_mailbox.mb_drive = unit;
1820 /* can't assume that interrupts are going to work here, so play it safe */
1821 if (sc->amr_poll_command(ac))
1823 error = ac->ac_status;
1829 sc->amr_state |= AMR_STATE_INTEN;
1836 /********************************************************************************
1837 * Print the command (ac) in human-readable format
1841 amr_printcommand(struct amr_command *ac)
1843 struct amr_softc *sc = ac->ac_sc;
1844 struct amr_sgentry *sg;
1847 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
1848 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
1849 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
1850 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
1851 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
1852 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
1853 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
1854 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
1856 /* get base address of s/g table */
1857 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1858 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
1859 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);