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 1.24 2007/05/15 22:44:09 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>
76 #include <bus/pci/pcireg.h>
77 #include <bus/pci/pcivar.h>
82 #define AMR_DEFINE_TABLES
83 #include "amr_tables.h"
85 #define AMR_CDEV_MAJOR 132
87 static d_open_t amr_open;
88 static d_close_t amr_close;
89 static d_ioctl_t amr_ioctl;
91 static struct dev_ops amr_ops = {
92 { "amr", AMR_CDEV_MAJOR, 0 },
99 * Initialisation, bus interface.
101 static void amr_startup(void *arg);
106 static int amr_query_controller(struct amr_softc *sc);
107 static void *amr_enquiry(struct amr_softc *sc, size_t bufsize,
108 u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual);
109 static void amr_completeio(struct amr_command *ac);
110 static int amr_support_ext_cdb(struct amr_softc *sc);
113 * Command buffer allocation.
115 static void amr_alloccmd_cluster(struct amr_softc *sc);
116 static void amr_freecmd_cluster(struct amr_command_cluster *acc);
119 * Command processing.
121 static int amr_bio_command(struct amr_softc *sc, struct amr_command **acp);
122 static int amr_wait_command(struct amr_command *ac);
123 static int amr_getslot(struct amr_command *ac);
124 static void amr_mapcmd(struct amr_command *ac);
125 static void amr_unmapcmd(struct amr_command *ac);
126 static int amr_start(struct amr_command *ac);
127 static void amr_complete(void *context, int pending);
132 static void amr_periodic(void *data);
135 * Interface-specific shims
137 static int amr_quartz_submit_command(struct amr_softc *sc);
138 static int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
139 static int amr_quartz_poll_command(struct amr_command *ac);
141 static int amr_std_submit_command(struct amr_softc *sc);
142 static int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
143 static int amr_std_poll_command(struct amr_command *ac);
144 static void amr_std_attach_mailbox(struct amr_softc *sc);
146 #ifdef AMR_BOARD_INIT
147 static int amr_quartz_init(struct amr_softc *sc);
148 static int amr_std_init(struct amr_softc *sc);
154 static void amr_describe_controller(struct amr_softc *sc);
157 static void amr_printcommand(struct amr_command *ac);
161 DECLARE_DUMMY_MODULE(amr);
163 /********************************************************************************
164 ********************************************************************************
166 ********************************************************************************
167 ********************************************************************************/
169 /********************************************************************************
170 ********************************************************************************
172 ********************************************************************************
173 ********************************************************************************/
175 /********************************************************************************
176 * Initialise the controller and softc.
179 amr_attach(struct amr_softc *sc)
185 * Initialise per-controller queues.
187 TAILQ_INIT(&sc->amr_completed);
188 TAILQ_INIT(&sc->amr_freecmds);
189 TAILQ_INIT(&sc->amr_cmd_clusters);
190 TAILQ_INIT(&sc->amr_ready);
191 bioq_init(&sc->amr_bioq);
193 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
195 * Initialise command-completion task.
197 TASK_INIT(&sc->amr_task_complete, 0, amr_complete, sc);
200 debug(2, "queue init done");
203 * Configure for this controller type.
205 if (AMR_IS_QUARTZ(sc)) {
206 sc->amr_submit_command = amr_quartz_submit_command;
207 sc->amr_get_work = amr_quartz_get_work;
208 sc->amr_poll_command = amr_quartz_poll_command;
210 sc->amr_submit_command = amr_std_submit_command;
211 sc->amr_get_work = amr_std_get_work;
212 sc->amr_poll_command = amr_std_poll_command;
213 amr_std_attach_mailbox(sc);
216 #ifdef AMR_BOARD_INIT
217 if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc))))
222 * Quiz controller for features and limits.
224 if (amr_query_controller(sc))
227 debug(2, "controller query complete");
230 * Attach our 'real' SCSI channels to CAM.
232 if (amr_cam_attach(sc))
234 debug(2, "CAM attach done");
237 * Create the control device.
239 dev_ops_add(&amr_ops, -1, device_get_unit(sc->amr_dev));
240 sc->amr_dev_t = make_dev(&amr_ops, device_get_unit(sc->amr_dev),
241 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
242 "amr%d", device_get_unit(sc->amr_dev));
243 sc->amr_dev_t->si_drv1 = sc;
244 reference_dev(sc->amr_dev_t);
247 * Schedule ourselves to bring the controller up once interrupts are
250 bzero(&sc->amr_ich, sizeof(struct intr_config_hook));
251 sc->amr_ich.ich_func = amr_startup;
252 sc->amr_ich.ich_arg = sc;
253 sc->amr_ich.ich_desc = "amr";
254 if (config_intrhook_establish(&sc->amr_ich) != 0) {
255 device_printf(sc->amr_dev, "can't establish configuration hook\n");
260 * Print a little information about the controller.
262 amr_describe_controller(sc);
264 debug(2, "attach complete");
268 /********************************************************************************
269 * Locate disk resources and attach children to them.
272 amr_startup(void *arg)
274 struct amr_softc *sc = (struct amr_softc *)arg;
275 struct amr_logdrive *dr;
279 callout_init(&sc->amr_timeout);
281 /* pull ourselves off the intrhook chain */
282 config_intrhook_disestablish(&sc->amr_ich);
284 /* get up-to-date drive information */
285 if (amr_query_controller(sc)) {
286 device_printf(sc->amr_dev, "can't scan controller for drives\n");
290 /* iterate over available drives */
291 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
292 /* are we already attached to this drive? */
293 if (dr->al_disk == 0) {
294 /* generate geometry information */
295 if (dr->al_size > 0x200000) { /* extended translation? */
302 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
304 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
305 if (dr->al_disk == 0)
306 device_printf(sc->amr_dev, "device_add_child failed\n");
307 device_set_ivars(dr->al_disk, dr);
311 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
312 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
314 /* mark controller back up */
315 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
317 /* interrupts will be enabled before we do anything more */
318 sc->amr_state |= AMR_STATE_INTEN;
321 * Start the timeout routine.
323 /* callout_reset(&sc->amr_timeout, hz, amr_periodic, sc); */
328 /*******************************************************************************
329 * Free resources associated with a controller instance
332 amr_free(struct amr_softc *sc)
334 struct amr_command_cluster *acc;
336 /* detach from CAM */
339 /* cancel status timeout */
340 callout_stop(&sc->amr_timeout);
342 /* throw away any command buffers */
343 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
344 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
345 amr_freecmd_cluster(acc);
348 /* destroy control device */
349 if( sc->amr_dev_t != (cdev_t)NULL)
350 destroy_dev(sc->amr_dev_t);
351 dev_ops_remove(&amr_ops, -1, device_get_unit(sc->amr_dev));
354 /*******************************************************************************
355 * Receive a bio structure from a child device and queue it on a particular
356 * disk resource, then poke the disk resource to start as much work as it can.
359 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
363 amr_enqueue_bio(sc, bio);
368 /********************************************************************************
369 * Accept an open operation on the control device.
372 amr_open(struct dev_open_args *ap)
374 cdev_t dev = ap->a_head.a_dev;
375 int unit = minor(dev);
376 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
380 sc->amr_state |= AMR_STATE_OPEN;
384 /********************************************************************************
385 * Accept the last close on the control device.
388 amr_close(struct dev_close_args *ap)
390 cdev_t dev = ap->a_head.a_dev;
391 int unit = minor(dev);
392 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
396 sc->amr_state &= ~AMR_STATE_OPEN;
400 /********************************************************************************
401 * Handle controller-specific control operations.
404 amr_ioctl(struct dev_ioctl_args *ap)
406 cdev_t dev = ap->a_head.a_dev;
407 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
408 int *arg = (int *)ap->a_data;
409 struct amr_user_ioctl *au = (struct amr_user_ioctl *)ap->a_data;
410 struct amr_command *ac;
411 struct amr_mailbox_ioctl *mbi;
412 struct amr_passthrough *apt;
425 debug(1, "AMR_IO_VERSION");
426 *arg = AMR_IO_VERSION_NUMBER;
430 debug(1, "AMR_IO_COMMAND 0x%x", au->au_cmd[0]);
431 /* handle inbound data buffer */
432 if (au->au_length != 0) {
433 if ((dp = kmalloc(au->au_length, M_DEVBUF, M_WAITOK)) == NULL) {
437 if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0)
439 debug(2, "copyin %ld bytes from %p -> %p", au->au_length, au->au_buffer, dp);
442 if ((ac = amr_alloccmd(sc)) == NULL) {
447 /* handle SCSI passthrough command */
448 if (au->au_cmd[0] == AMR_CMD_PASS) {
449 if ((apt = kmalloc(sizeof(*apt), M_DEVBUF, M_WAITOK | M_ZERO)) == NULL) {
455 apt->ap_cdb_length = au->au_cmd[2];
456 bcopy(&au->au_cmd[3], &apt->ap_cdb[0], apt->ap_cdb_length);
458 /* build passthrough */
459 apt->ap_timeout = au->au_cmd[apt->ap_cdb_length + 3] & 0x07;
460 apt->ap_ars = (au->au_cmd[apt->ap_cdb_length + 3] & 0x08) ? 1 : 0;
461 apt->ap_islogical = (au->au_cmd[apt->ap_cdb_length + 3] & 0x80) ? 1 : 0;
462 apt->ap_logical_drive_no = au->au_cmd[apt->ap_cdb_length + 4];
463 apt->ap_channel = au->au_cmd[apt->ap_cdb_length + 5];
464 apt->ap_scsi_id = au->au_cmd[apt->ap_cdb_length + 6];
465 apt->ap_request_sense_length = 14;
466 apt->ap_data_transfer_length = au->au_length;
467 /* XXX what about the request-sense area? does the caller want it? */
471 ac->ac_length = sizeof(*apt);
472 ac->ac_flags |= AMR_CMD_DATAOUT;
473 ac->ac_ccb_data = dp;
474 ac->ac_ccb_length = au->au_length;
475 if (au->au_direction & AMR_IO_READ)
476 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
477 if (au->au_direction & AMR_IO_WRITE)
478 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
480 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
483 /* direct command to controller */
484 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
486 /* copy pertinent mailbox items */
487 mbi->mb_command = au->au_cmd[0];
488 mbi->mb_channel = au->au_cmd[1];
489 mbi->mb_param = au->au_cmd[2];
490 mbi->mb_pad[0] = au->au_cmd[3];
491 mbi->mb_drive = au->au_cmd[4];
493 /* build the command */
495 ac->ac_length = au->au_length;
496 if (au->au_direction & AMR_IO_READ)
497 ac->ac_flags |= AMR_CMD_DATAIN;
498 if (au->au_direction & AMR_IO_WRITE)
499 ac->ac_flags |= AMR_CMD_DATAOUT;
502 /* run the command */
503 if ((error = amr_wait_command(ac)) != 0)
506 /* copy out data and set status */
507 if (au->au_length != 0)
508 error = copyout(dp, au->au_buffer, au->au_length);
509 debug(2, "copyout %ld bytes from %p -> %p", au->au_length, dp, au->au_buffer);
511 debug(2, "%16d", (int)dp);
512 au->au_status = ac->ac_status;
516 debug(1, "unknown ioctl 0x%lx", cmd);
524 kfree(apt, M_DEVBUF);
530 /********************************************************************************
531 ********************************************************************************
533 ********************************************************************************
534 ********************************************************************************/
536 /********************************************************************************
537 * Perform a periodic check of the controller status
540 amr_periodic(void *data)
542 struct amr_softc *sc = (struct amr_softc *)data;
546 /* XXX perform periodic status checks here */
548 /* compensate for missed interrupts */
552 callout_reset(&sc->amr_timeout, hz, amr_periodic, sc);
555 /********************************************************************************
556 ********************************************************************************
558 ********************************************************************************
559 ********************************************************************************/
561 /********************************************************************************
562 * Interrogate the controller for the operational parameters we require.
565 amr_query_controller(struct amr_softc *sc)
567 struct amr_enquiry3 *aex;
568 struct amr_prodinfo *ap;
569 struct amr_enquiry *ae;
573 * If we haven't found the real limit yet, let us have a couple of commands in
574 * order to be able to probe.
576 if (sc->amr_maxio == 0)
580 * Greater than 10 byte cdb support
582 sc->support_ext_cdb = amr_support_ext_cdb(sc);
584 if(sc->support_ext_cdb) {
585 debug(2,"supports extended CDBs.");
589 * Try to issue an ENQUIRY3 command
591 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
592 AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) {
595 * Fetch current state of logical drives.
597 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
598 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
599 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
600 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
601 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
602 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
604 kfree(aex, M_DEVBUF);
607 * Get product info for channel count.
609 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) {
610 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
613 sc->amr_maxdrives = 40;
614 sc->amr_maxchan = ap->ap_nschan;
615 sc->amr_maxio = ap->ap_maxio;
616 sc->amr_type |= AMR_TYPE_40LD;
621 /* failed, try the 8LD ENQUIRY commands */
622 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) {
623 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) {
624 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
627 ae->ae_signature = 0;
631 * Fetch current state of logical drives.
633 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
634 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
635 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
636 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
637 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
638 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
641 sc->amr_maxdrives = 8;
642 sc->amr_maxchan = ae->ae_adapter.aa_channels;
643 sc->amr_maxio = ae->ae_adapter.aa_maxio;
648 * Mark remaining drives as unused.
650 for (; ldrv < AMR_MAXLD; ldrv++)
651 sc->amr_drive[ldrv].al_size = 0xffffffff;
654 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
655 * the controller's reported value, and lockups have been seen when we do.
657 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
662 /********************************************************************************
663 * Run a generic enquiry-style command.
666 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual)
668 struct amr_command *ac;
678 /* get ourselves a command buffer */
679 if ((ac = amr_alloccmd(sc)) == NULL)
681 /* allocate the response structure */
682 result = kmalloc(bufsize, M_DEVBUF, M_INTWAIT);
683 /* set command flags */
684 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
686 /* point the command at our data */
687 ac->ac_data = result;
688 ac->ac_length = bufsize;
690 /* build the command proper */
691 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
696 /* can't assume that interrupts are going to work here, so play it safe */
697 if (sc->amr_poll_command(ac))
699 error = ac->ac_status;
704 if ((error != 0) && (result != NULL)) {
705 kfree(result, M_DEVBUF);
711 /********************************************************************************
712 * Flush the controller's internal cache, return status.
715 amr_flush(struct amr_softc *sc)
717 struct amr_command *ac;
720 /* get ourselves a command buffer */
722 if ((ac = amr_alloccmd(sc)) == NULL)
724 /* set command flags */
725 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
727 /* build the command proper */
728 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
730 /* we have to poll, as the system may be going down or otherwise damaged */
731 if (sc->amr_poll_command(ac))
733 error = ac->ac_status;
741 /********************************************************************************
742 * Detect extented cdb >> greater than 10 byte cdb support
743 * returns '1' means this support exist
744 * returns '0' means this support doesn't exist
747 amr_support_ext_cdb(struct amr_softc *sc)
749 struct amr_command *ac;
753 /* get ourselves a command buffer */
755 if ((ac = amr_alloccmd(sc)) == NULL)
757 /* set command flags */
758 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
760 /* build the command proper */
761 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
766 /* we have to poll, as the system may be going down or otherwise damaged */
767 if (sc->amr_poll_command(ac))
769 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
779 /********************************************************************************
780 * Try to find I/O work for the controller from one or more of the work queues.
782 * We make the assumption that if the controller is not ready to take a command
783 * at some given time, it will generate an interrupt at some later time when
787 amr_startio(struct amr_softc *sc)
789 struct amr_command *ac;
791 /* spin until something prevents us from doing any work */
794 /* try to get a ready command */
795 ac = amr_dequeue_ready(sc);
797 /* if that failed, build a command from a bio */
799 (void)amr_bio_command(sc, &ac);
801 /* if that failed, build a command from a ccb */
803 (void)amr_cam_command(sc, &ac);
805 /* if we don't have anything to do, give up */
809 /* try to give the command to the controller; if this fails save it for later and give up */
811 debug(2, "controller busy, command deferred");
812 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
818 /********************************************************************************
819 * Handle completion of an I/O command.
822 amr_completeio(struct amr_command *ac)
824 struct amr_softc *sc = ac->ac_sc;
826 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
827 ac->ac_bio->bio_buf->b_error = EIO;
828 ac->ac_bio->bio_buf->b_flags |= B_ERROR;
830 device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status);
831 /* amr_printcommand(ac);*/
833 amrd_intr(ac->ac_bio);
837 /********************************************************************************
838 ********************************************************************************
840 ********************************************************************************
841 ********************************************************************************/
843 /********************************************************************************
844 * Convert a bio off the top of the bio queue into a command.
847 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
849 struct amr_command *ac;
850 struct amrd_softc *amrd;
861 /* get a bio to work on */
862 if ((bio = amr_dequeue_bio(sc)) == NULL)
866 if ((ac = amr_alloccmd(sc)) == NULL) {
871 /* connect the bio to the command */
872 ac->ac_complete = amr_completeio;
874 ac->ac_data = bio->bio_buf->b_data;
875 ac->ac_length = bio->bio_buf->b_bcount;
876 if (bio->bio_buf->b_cmd == BUF_CMD_READ) {
877 ac->ac_flags |= AMR_CMD_DATAIN;
880 ac->ac_flags |= AMR_CMD_DATAOUT;
881 cmd = AMR_CMD_LWRITE;
883 amrd = (struct amrd_softc *)bio->bio_driver_info;
884 driveno = amrd->amrd_drive - sc->amr_drive;
885 blkcount = (bio->bio_buf->b_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
886 lba = bio->bio_offset / AMR_BLKSIZE;
887 KKASSERT(lba < 0x100000000ULL);
889 ac->ac_mailbox.mb_command = cmd;
890 ac->ac_mailbox.mb_blkcount = blkcount;
891 ac->ac_mailbox.mb_lba = lba;
892 ac->ac_mailbox.mb_drive = driveno;
893 /* we fill in the s/g related data when the command is mapped */
895 if ((lba + blkcount) > sc->amr_drive[driveno].al_size)
896 device_printf(sc->amr_dev, "I/O beyond end of unit (%lld,%d > %lu)\n",
898 (u_long)sc->amr_drive[driveno].al_size);
904 if (bio != NULL) /* this breaks ordering... */
905 amr_enqueue_bio(sc, bio);
911 /********************************************************************************
912 * Take a command, submit it to the controller and sleep until it completes
913 * or fails. Interrupts must be enabled, returns nonzero on error.
916 amr_wait_command(struct amr_command *ac)
922 ac->ac_complete = NULL;
923 ac->ac_flags |= AMR_CMD_SLEEP;
924 if ((error = amr_start(ac)) != 0)
928 /* XXX better timeout? */
929 while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) {
930 tsleep(ac, PCATCH, "amrwcmd", hz);
935 /********************************************************************************
936 * Take a command, submit it to the controller and busy-wait for it to return.
937 * Returns nonzero on error. Can be safely called with interrupts enabled.
940 amr_std_poll_command(struct amr_command *ac)
942 struct amr_softc *sc = ac->ac_sc;
947 ac->ac_complete = NULL;
948 if ((error = amr_start(ac)) != 0)
954 * Poll for completion, although the interrupt handler may beat us to it.
955 * Note that the timeout here is somewhat arbitrary.
959 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
960 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
963 /* XXX the slot is now marked permanently busy */
965 device_printf(sc->amr_dev, "polled command timeout\n");
970 /********************************************************************************
971 * Take a command, submit it to the controller and busy-wait for it to return.
972 * Returns nonzero on error. Can be safely called with interrupts enabled.
975 amr_quartz_poll_command(struct amr_command *ac)
977 struct amr_softc *sc = ac->ac_sc;
982 /* now we have a slot, we can map the command (unmapped in amr_complete) */
987 if (sc->amr_state & AMR_STATE_INTEN) {
989 while (sc->amr_busyslots) {
990 tsleep(sc, PCATCH, "amrpoll", hz);
996 if(sc->amr_busyslots) {
997 device_printf(sc->amr_dev, "adapter is busy\n");
1005 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1007 /* clear the poll/ack fields in the mailbox */
1008 sc->amr_mailbox->mb_ident = 0xFE;
1009 sc->amr_mailbox->mb_nstatus = 0xFF;
1010 sc->amr_mailbox->mb_status = 0xFF;
1011 sc->amr_mailbox->mb_poll = 0;
1012 sc->amr_mailbox->mb_ack = 0;
1013 sc->amr_mailbox->mb_busy = 1;
1015 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1017 while(sc->amr_mailbox->mb_nstatus == 0xFF);
1018 while(sc->amr_mailbox->mb_status == 0xFF);
1019 ac->ac_status=sc->amr_mailbox->mb_status;
1020 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1021 while(sc->amr_mailbox->mb_poll != 0x77);
1022 sc->amr_mailbox->mb_poll = 0;
1023 sc->amr_mailbox->mb_ack = 0x77;
1025 /* acknowledge that we have the commands */
1026 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1027 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK);
1031 /* unmap the command's data buffer */
1037 /********************************************************************************
1038 * Get a free command slot for a command if it doesn't already have one.
1040 * May be safely called multiple times for a given command.
1043 amr_getslot(struct amr_command *ac)
1045 struct amr_softc *sc = ac->ac_sc;
1046 int slot, limit, error;
1050 /* if the command already has a slot, don't try to give it another one */
1051 if (ac->ac_slot != 0)
1054 /* enforce slot usage limit */
1055 limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4;
1056 if (sc->amr_busyslots > limit)
1060 * Allocate a slot. XXX linear scan is slow
1064 for (slot = 0; slot < sc->amr_maxio; slot++) {
1065 if (sc->amr_busycmd[slot] == NULL) {
1066 sc->amr_busycmd[slot] = ac;
1067 sc->amr_busyslots++;
1078 /********************************************************************************
1079 * Map/unmap (ac)'s data in the controller's addressable space as required.
1081 * These functions may be safely called multiple times on a given command.
1084 amr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1086 struct amr_command *ac = (struct amr_command *)arg;
1087 struct amr_softc *sc = ac->ac_sc;
1088 struct amr_sgentry *sg;
1094 /* get base address of s/g table */
1095 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1097 /* save data physical address */
1098 ac->ac_dataphys = segs[0].ds_addr;
1100 /* for AMR_CMD_CONFIG the s/g count goes elsewhere */
1101 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG) {
1102 sgc = &(((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param);
1104 sgc = &ac->ac_mailbox.mb_nsgelem;
1107 /* decide whether we need to populate the s/g table */
1108 if (nsegments < 2) {
1110 ac->ac_mailbox.mb_nsgelem = 0;
1111 ac->ac_mailbox.mb_physaddr = ac->ac_dataphys;
1113 ac->ac_mailbox.mb_nsgelem = nsegments;
1115 ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1116 for (i = 0; i < nsegments; i++, sg++) {
1117 sg->sg_addr = segs[i].ds_addr;
1118 sg->sg_count = segs[i].ds_len;
1124 amr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1126 struct amr_command *ac = (struct amr_command *)arg;
1127 struct amr_softc *sc = ac->ac_sc;
1128 struct amr_sgentry *sg;
1129 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
1130 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
1133 /* get base address of s/g table */
1134 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1136 /* decide whether we need to populate the s/g table */
1137 if( ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS ) {
1138 if (nsegments < 2) {
1139 aep->ap_no_sg_elements = 0;
1140 aep->ap_data_transfer_address = segs[0].ds_addr;
1142 /* save s/g table information in passthrough */
1143 aep->ap_no_sg_elements = nsegments;
1144 aep->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1145 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1146 for (i = 0; i < nsegments; i++, sg++) {
1147 sg->sg_addr = segs[i].ds_addr;
1148 sg->sg_count = segs[i].ds_len;
1149 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1152 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1153 aep->ap_no_sg_elements, aep->ap_data_transfer_address, ac->ac_dataphys);
1155 if (nsegments < 2) {
1156 ap->ap_no_sg_elements = 0;
1157 ap->ap_data_transfer_address = segs[0].ds_addr;
1159 /* save s/g table information in passthrough */
1160 ap->ap_no_sg_elements = nsegments;
1161 ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1162 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1163 for (i = 0; i < nsegments; i++, sg++) {
1164 sg->sg_addr = segs[i].ds_addr;
1165 sg->sg_count = segs[i].ds_len;
1166 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1169 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1170 ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys);
1175 amr_mapcmd(struct amr_command *ac)
1177 struct amr_softc *sc = ac->ac_sc;
1181 /* if the command involves data at all, and hasn't been mapped */
1182 if (!(ac->ac_flags & AMR_CMD_MAPPED)) {
1184 if (ac->ac_data != NULL) {
1185 /* map the data buffers into bus space and build the s/g list */
1186 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length,
1187 amr_setup_dmamap, ac, 0);
1188 if (ac->ac_flags & AMR_CMD_DATAIN)
1189 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD);
1190 if (ac->ac_flags & AMR_CMD_DATAOUT)
1191 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE);
1194 if (ac->ac_ccb_data != NULL) {
1195 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length,
1196 amr_setup_ccbmap, ac, 0);
1197 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1198 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD);
1199 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1200 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE);
1202 ac->ac_flags |= AMR_CMD_MAPPED;
1207 amr_unmapcmd(struct amr_command *ac)
1209 struct amr_softc *sc = ac->ac_sc;
1213 /* if the command involved data at all and was mapped */
1214 if (ac->ac_flags & AMR_CMD_MAPPED) {
1216 if (ac->ac_data != NULL) {
1217 if (ac->ac_flags & AMR_CMD_DATAIN)
1218 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD);
1219 if (ac->ac_flags & AMR_CMD_DATAOUT)
1220 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE);
1221 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap);
1224 if (ac->ac_ccb_data != NULL) {
1225 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1226 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD);
1227 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1228 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE);
1229 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap);
1231 ac->ac_flags &= ~AMR_CMD_MAPPED;
1235 /********************************************************************************
1236 * Take a command and give it to the controller, returns 0 if successful, or
1237 * EBUSY if the command should be retried later.
1240 amr_start(struct amr_command *ac)
1242 struct amr_softc *sc = ac->ac_sc;
1247 /* mark command as busy so that polling consumer can tell */
1248 ac->ac_flags |= AMR_CMD_BUSY;
1250 /* get a command slot (freed in amr_done) */
1251 if (amr_getslot(ac))
1254 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1257 /* mark the new mailbox we are going to copy in as busy */
1258 ac->ac_mailbox.mb_busy = 1;
1260 /* clear the poll/ack fields in the mailbox */
1261 sc->amr_mailbox->mb_poll = 0;
1262 sc->amr_mailbox->mb_ack = 0;
1265 * Save the slot number so that we can locate this command when complete.
1266 * Note that ident = 0 seems to be special, so we don't use it.
1268 ac->ac_mailbox.mb_ident = ac->ac_slot + 1;
1271 * Spin waiting for the mailbox, give up after ~1 second. We expect the
1272 * controller to be able to handle our I/O.
1274 * XXX perhaps we should wait for less time, and count on the deferred command
1275 * handling to deal with retries?
1277 debug(4, "wait for mailbox");
1278 for (i = 10000, done = 0; (i > 0) && !done; i--) {
1281 /* is the mailbox free? */
1282 if (sc->amr_mailbox->mb_busy == 0) {
1283 debug(4, "got mailbox");
1284 sc->amr_mailbox64->mb64_segment = 0;
1285 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1288 /* not free, spin waiting */
1290 debug(4, "busy flag %x\n", sc->amr_mailbox->mb_busy);
1291 /* this is somewhat ugly */
1298 * Now give the command to the controller
1301 if (sc->amr_submit_command(sc)) {
1302 /* the controller wasn't ready to take the command, forget that we tried to post it */
1303 sc->amr_mailbox->mb_busy = 0;
1306 debug(3, "posted command");
1311 * The controller wouldn't take the command. Return the command as busy
1312 * so that it is retried later.
1317 /********************************************************************************
1318 * Extract one or more completed commands from the controller (sc)
1320 * Returns nonzero if any commands on the work queue were marked as completed.
1323 amr_done(struct amr_softc *sc)
1325 struct amr_command *ac;
1326 struct amr_mailbox mbox;
1331 /* See if there's anything for us to do */
1334 /* loop collecting completed commands */
1336 /* poll for a completed command's identifier and status */
1337 if (sc->amr_get_work(sc, &mbox)) {
1340 /* iterate over completed commands in this result */
1341 for (i = 0; i < mbox.mb_nstatus; i++) {
1342 /* get pointer to busy command */
1343 idx = mbox.mb_completed[i] - 1;
1344 ac = sc->amr_busycmd[idx];
1346 /* really a busy command? */
1349 /* pull the command from the busy index */
1350 sc->amr_busycmd[idx] = NULL;
1351 sc->amr_busyslots--;
1353 /* save status for later use */
1354 ac->ac_status = mbox.mb_status;
1355 amr_enqueue_completed(ac);
1356 debug(3, "completed command with status %x", mbox.mb_status);
1358 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1362 break; /* no work */
1366 /* if we've completed any commands, try posting some more */
1370 /* handle completion and timeouts */
1371 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1372 if (sc->amr_state & AMR_STATE_INTEN)
1373 taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete);
1376 amr_complete(sc, 0);
1381 /********************************************************************************
1382 * Do completion processing on done commands on (sc)
1385 amr_complete(void *context, int pending)
1387 struct amr_softc *sc = (struct amr_softc *)context;
1388 struct amr_command *ac;
1392 /* pull completed commands off the queue */
1394 ac = amr_dequeue_completed(sc);
1398 /* unmap the command's data buffer */
1401 /* unbusy the command */
1402 ac->ac_flags &= ~AMR_CMD_BUSY;
1405 * Is there a completion handler?
1407 if (ac->ac_complete != NULL) {
1408 ac->ac_complete(ac);
1411 * Is someone sleeping on this one?
1413 } else if (ac->ac_flags & AMR_CMD_SLEEP) {
1417 if(!sc->amr_busyslots) {
1423 /********************************************************************************
1424 ********************************************************************************
1425 Command Buffer Management
1426 ********************************************************************************
1427 ********************************************************************************/
1429 /********************************************************************************
1430 * Get a new command buffer.
1432 * This may return NULL in low-memory cases.
1434 * If possible, we recycle a command buffer that's been used before.
1436 struct amr_command *
1437 amr_alloccmd(struct amr_softc *sc)
1439 struct amr_command *ac;
1443 ac = amr_dequeue_free(sc);
1445 amr_alloccmd_cluster(sc);
1446 ac = amr_dequeue_free(sc);
1451 /* clear out significant fields */
1454 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1458 ac->ac_ccb_data = NULL;
1459 ac->ac_complete = NULL;
1463 /********************************************************************************
1464 * Release a command buffer for recycling.
1467 amr_releasecmd(struct amr_command *ac)
1471 amr_enqueue_free(ac);
1474 /********************************************************************************
1475 * Allocate a new command cluster and initialise it.
1478 amr_alloccmd_cluster(struct amr_softc *sc)
1480 struct amr_command_cluster *acc;
1481 struct amr_command *ac;
1484 acc = kmalloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_INTWAIT);
1486 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1488 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1489 ac = &acc->acc_command[i];
1490 bzero(ac, sizeof(*ac));
1492 if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) &&
1493 !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap))
1498 /********************************************************************************
1499 * Free a command cluster
1502 amr_freecmd_cluster(struct amr_command_cluster *acc)
1504 struct amr_softc *sc = acc->acc_command[0].ac_sc;
1507 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++)
1508 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
1509 kfree(acc, M_DEVBUF);
1512 /********************************************************************************
1513 ********************************************************************************
1514 Interface-specific Shims
1515 ********************************************************************************
1516 ********************************************************************************/
1518 /********************************************************************************
1519 * Tell the controller that the mailbox contains a valid command
1522 amr_quartz_submit_command(struct amr_softc *sc)
1526 if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT)
1528 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1533 amr_std_submit_command(struct amr_softc *sc)
1537 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG)
1539 AMR_SPOST_COMMAND(sc);
1543 /********************************************************************************
1544 * Claim any work that the controller has completed; acknowledge completion,
1545 * save details of the completion in (mbsave)
1548 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1558 /* work waiting for us? */
1559 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
1561 /* save mailbox, which contains a list of completed commands */
1562 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1564 /* acknowledge interrupt */
1565 AMR_QPUT_ODB(sc, AMR_QODB_READY);
1567 /* acknowledge that we have the commands */
1568 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1570 #ifndef AMR_QUARTZ_GOFASTER
1572 * This waits for the controller to notice that we've taken the
1573 * command from it. It's very inefficient, and we shouldn't do it,
1574 * but if we remove this code, we stop completing commands under
1577 * Peter J says we shouldn't do this. The documentation says we
1578 * should. Who is right?
1580 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1581 ; /* XXX aiee! what if it dies? */
1584 worked = 1; /* got some work */
1592 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1602 /* check for valid interrupt status */
1603 istat = AMR_SGET_ISTAT(sc);
1604 if ((istat & AMR_SINTR_VALID) != 0) {
1605 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
1607 /* save mailbox, which contains a list of completed commands */
1608 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1610 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
1618 /********************************************************************************
1619 * Notify the controller of the mailbox location.
1622 amr_std_attach_mailbox(struct amr_softc *sc)
1625 /* program the mailbox physical address */
1626 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
1627 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
1628 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
1629 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
1630 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
1632 /* clear any outstanding interrupt and enable interrupts proper */
1633 AMR_SACK_INTERRUPT(sc);
1634 AMR_SENABLE_INTR(sc);
1637 #ifdef AMR_BOARD_INIT
1638 /********************************************************************************
1639 * Initialise the controller
1642 amr_quartz_init(struct amr_softc *sc)
1644 int status, ostatus;
1646 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
1651 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
1652 if (status != ostatus) {
1653 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
1657 case AMR_QINIT_NOMEM:
1660 case AMR_QINIT_SCAN:
1661 /* XXX we could print channel/target here */
1669 amr_std_init(struct amr_softc *sc)
1671 int status, ostatus;
1673 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
1678 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
1679 if (status != ostatus) {
1680 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
1684 case AMR_SINIT_NOMEM:
1687 case AMR_SINIT_INPROG:
1688 /* XXX we could print channel/target here? */
1696 /********************************************************************************
1697 ********************************************************************************
1699 ********************************************************************************
1700 ********************************************************************************/
1702 /********************************************************************************
1703 * Identify the controller and print some information about it.
1706 amr_describe_controller(struct amr_softc *sc)
1708 struct amr_prodinfo *ap;
1709 struct amr_enquiry *ae;
1713 * Try to get 40LD product info, which tells us what the card is labelled as.
1715 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) {
1716 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
1717 ap->ap_product, ap->ap_firmware, ap->ap_bios,
1720 kfree(ap, M_DEVBUF);
1725 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
1727 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) {
1728 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
1730 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) {
1733 * Try to work it out based on the PCI signatures.
1735 switch (pci_get_device(sc->amr_dev)) {
1737 prod = "Series 428";
1740 prod = "Series 434";
1743 prod = "unknown controller";
1747 prod = "unsupported controller";
1751 * HP NetRaid controllers have a special encoding of the firmware and
1752 * BIOS versions. The AMI version seems to have it as strings whereas
1753 * the HP version does it with a leading uppercase character and two
1757 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
1758 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
1759 ae->ae_adapter.aa_firmware[1] < ' ' &&
1760 ae->ae_adapter.aa_firmware[0] < ' ' &&
1761 ae->ae_adapter.aa_bios[2] >= 'A' &&
1762 ae->ae_adapter.aa_bios[2] <= 'Z' &&
1763 ae->ae_adapter.aa_bios[1] < ' ' &&
1764 ae->ae_adapter.aa_bios[0] < ' ') {
1766 /* this looks like we have an HP NetRaid version of the MegaRaid */
1768 if(ae->ae_signature == AMR_SIG_438) {
1769 /* the AMI 438 is a NetRaid 3si in HP-land */
1770 prod = "HP NetRaid 3si";
1773 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
1774 prod, ae->ae_adapter.aa_firmware[2],
1775 ae->ae_adapter.aa_firmware[1],
1776 ae->ae_adapter.aa_firmware[0],
1777 ae->ae_adapter.aa_bios[2],
1778 ae->ae_adapter.aa_bios[1],
1779 ae->ae_adapter.aa_bios[0],
1780 ae->ae_adapter.aa_memorysize);
1782 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
1783 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
1784 ae->ae_adapter.aa_memorysize);
1786 kfree(ae, M_DEVBUF);
1790 amr_dump_blocks(struct amr_softc *sc, int unit, u_int64_t lba, void *data, int blks)
1793 struct amr_command *ac;
1798 sc->amr_state &= ~AMR_STATE_INTEN;
1800 /* get ourselves a command buffer */
1801 if ((ac = amr_alloccmd(sc)) == NULL)
1803 /* set command flags */
1804 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1806 /* point the command at our data */
1808 ac->ac_length = blks * AMR_BLKSIZE;
1810 /* build the command proper */
1811 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
1812 ac->ac_mailbox.mb_blkcount = blks;
1813 ac->ac_mailbox.mb_lba = lba;
1814 ac->ac_mailbox.mb_drive = unit;
1816 /* can't assume that interrupts are going to work here, so play it safe */
1817 if (sc->amr_poll_command(ac))
1819 error = ac->ac_status;
1825 sc->amr_state |= AMR_STATE_INTEN;
1832 /********************************************************************************
1833 * Print the command (ac) in human-readable format
1837 amr_printcommand(struct amr_command *ac)
1839 struct amr_softc *sc = ac->ac_sc;
1840 struct amr_sgentry *sg;
1843 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
1844 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
1845 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
1846 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
1847 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
1848 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
1849 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
1850 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
1852 /* get base address of s/g table */
1853 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1854 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
1855 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);