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 $
59 * Driver for the AMI MegaRaid family of controllers.
62 #include <sys/param.h>
63 #include <sys/systm.h>
64 #include <sys/malloc.h>
65 #include <sys/kernel.h>
67 #include "amr_compat.h"
70 #include <sys/devicestat.h>
75 #include <bus/pci/pcireg.h>
76 #include <bus/pci/pcivar.h>
81 #define AMR_DEFINE_TABLES
82 #include "amr_tables.h"
84 static d_open_t amr_open;
85 static d_close_t amr_close;
86 static d_ioctl_t amr_ioctl;
88 static struct dev_ops amr_ops = {
96 * Initialisation, bus interface.
98 static void amr_startup(void *arg);
103 static int amr_query_controller(struct amr_softc *sc);
104 static void *amr_enquiry(struct amr_softc *sc, size_t bufsize,
105 u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual);
106 static void amr_completeio(struct amr_command *ac);
107 static int amr_support_ext_cdb(struct amr_softc *sc);
110 * Command buffer allocation.
112 static void amr_alloccmd_cluster(struct amr_softc *sc);
113 static void amr_freecmd_cluster(struct amr_command_cluster *acc);
116 * Command processing.
118 static int amr_bio_command(struct amr_softc *sc, struct amr_command **acp);
119 static int amr_wait_command(struct amr_command *ac);
120 static int amr_getslot(struct amr_command *ac);
121 static void amr_mapcmd(struct amr_command *ac);
122 static void amr_unmapcmd(struct amr_command *ac);
123 static int amr_start(struct amr_command *ac);
124 static void amr_complete(void *context, int pending);
129 static void amr_periodic(void *data);
132 * Interface-specific shims
134 static int amr_quartz_submit_command(struct amr_softc *sc);
135 static int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
136 static int amr_quartz_poll_command(struct amr_command *ac);
138 static int amr_std_submit_command(struct amr_softc *sc);
139 static int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
140 static int amr_std_poll_command(struct amr_command *ac);
141 static void amr_std_attach_mailbox(struct amr_softc *sc);
143 #ifdef AMR_BOARD_INIT
144 static int amr_quartz_init(struct amr_softc *sc);
145 static int amr_std_init(struct amr_softc *sc);
151 static void amr_describe_controller(struct amr_softc *sc);
154 static void amr_printcommand(struct amr_command *ac);
158 DECLARE_DUMMY_MODULE(amr);
160 /********************************************************************************
161 ********************************************************************************
163 ********************************************************************************
164 ********************************************************************************/
166 /********************************************************************************
167 ********************************************************************************
169 ********************************************************************************
170 ********************************************************************************/
172 /********************************************************************************
173 * Initialise the controller and softc.
176 amr_attach(struct amr_softc *sc)
182 * Initialise per-controller queues.
184 TAILQ_INIT(&sc->amr_completed);
185 TAILQ_INIT(&sc->amr_freecmds);
186 TAILQ_INIT(&sc->amr_cmd_clusters);
187 TAILQ_INIT(&sc->amr_ready);
188 bioq_init(&sc->amr_bioq);
190 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
192 * Initialise command-completion task.
194 TASK_INIT(&sc->amr_task_complete, 0, amr_complete, sc);
197 debug(2, "queue init done");
200 * Configure for this controller type.
202 if (AMR_IS_QUARTZ(sc)) {
203 sc->amr_submit_command = amr_quartz_submit_command;
204 sc->amr_get_work = amr_quartz_get_work;
205 sc->amr_poll_command = amr_quartz_poll_command;
207 sc->amr_submit_command = amr_std_submit_command;
208 sc->amr_get_work = amr_std_get_work;
209 sc->amr_poll_command = amr_std_poll_command;
210 amr_std_attach_mailbox(sc);
213 #ifdef AMR_BOARD_INIT
214 if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc))))
219 * Quiz controller for features and limits.
221 if (amr_query_controller(sc))
224 debug(2, "controller query complete");
227 * Attach our 'real' SCSI channels to CAM.
229 if (amr_cam_attach(sc))
231 debug(2, "CAM attach done");
234 * Create the control device.
236 sc->amr_dev_t = make_dev(&amr_ops, device_get_unit(sc->amr_dev),
237 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
238 "amr%d", device_get_unit(sc->amr_dev));
239 sc->amr_dev_t->si_drv1 = sc;
240 reference_dev(sc->amr_dev_t);
243 * Schedule ourselves to bring the controller up once interrupts are
246 bzero(&sc->amr_ich, sizeof(struct intr_config_hook));
247 sc->amr_ich.ich_func = amr_startup;
248 sc->amr_ich.ich_arg = sc;
249 sc->amr_ich.ich_desc = "amr";
250 if (config_intrhook_establish(&sc->amr_ich) != 0) {
251 device_printf(sc->amr_dev, "can't establish configuration hook\n");
256 * Print a little information about the controller.
258 amr_describe_controller(sc);
260 debug(2, "attach complete");
264 /********************************************************************************
265 * Locate disk resources and attach children to them.
268 amr_startup(void *arg)
270 struct amr_softc *sc = (struct amr_softc *)arg;
271 struct amr_logdrive *dr;
275 callout_init(&sc->amr_timeout);
277 /* pull ourselves off the intrhook chain */
278 config_intrhook_disestablish(&sc->amr_ich);
280 /* get up-to-date drive information */
281 if (amr_query_controller(sc)) {
282 device_printf(sc->amr_dev, "can't scan controller for drives\n");
286 /* iterate over available drives */
287 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
288 /* are we already attached to this drive? */
289 if (dr->al_disk == 0) {
290 /* generate geometry information */
291 if (dr->al_size > 0x200000) { /* extended translation? */
298 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
300 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
301 if (dr->al_disk == 0)
302 device_printf(sc->amr_dev, "device_add_child failed\n");
303 device_set_ivars(dr->al_disk, dr);
307 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
308 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
310 /* mark controller back up */
311 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
313 /* interrupts will be enabled before we do anything more */
314 sc->amr_state |= AMR_STATE_INTEN;
317 * Start the timeout routine.
319 /* callout_reset(&sc->amr_timeout, hz, amr_periodic, sc); */
324 /*******************************************************************************
325 * Free resources associated with a controller instance
328 amr_free(struct amr_softc *sc)
330 struct amr_command_cluster *acc;
332 /* detach from CAM */
335 /* cancel status timeout */
336 callout_stop(&sc->amr_timeout);
338 /* throw away any command buffers */
339 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
340 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
341 amr_freecmd_cluster(acc);
344 /* destroy control device */
345 if( sc->amr_dev_t != (cdev_t)NULL)
346 destroy_dev(sc->amr_dev_t);
347 dev_ops_remove_minor(&amr_ops, device_get_unit(sc->amr_dev));
350 /*******************************************************************************
351 * Receive a bio structure from a child device and queue it on a particular
352 * disk resource, then poke the disk resource to start as much work as it can.
355 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
359 amr_enqueue_bio(sc, bio);
364 /********************************************************************************
365 * Accept an open operation on the control device.
368 amr_open(struct dev_open_args *ap)
370 cdev_t dev = ap->a_head.a_dev;
371 int unit = minor(dev);
372 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
376 sc->amr_state |= AMR_STATE_OPEN;
380 /********************************************************************************
381 * Accept the last close on the control device.
384 amr_close(struct dev_close_args *ap)
386 cdev_t dev = ap->a_head.a_dev;
387 int unit = minor(dev);
388 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
392 sc->amr_state &= ~AMR_STATE_OPEN;
396 /********************************************************************************
397 * Handle controller-specific control operations.
400 amr_ioctl(struct dev_ioctl_args *ap)
402 cdev_t dev = ap->a_head.a_dev;
403 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
404 int *arg = (int *)ap->a_data;
405 struct amr_user_ioctl *au = (struct amr_user_ioctl *)ap->a_data;
406 struct amr_command *ac;
407 struct amr_mailbox_ioctl *mbi;
408 struct amr_passthrough *apt;
421 debug(1, "AMR_IO_VERSION");
422 *arg = AMR_IO_VERSION_NUMBER;
426 debug(1, "AMR_IO_COMMAND 0x%x", au->au_cmd[0]);
427 /* handle inbound data buffer */
428 if (au->au_length != 0) {
429 dp = kmalloc(au->au_length, M_DEVBUF, M_WAITOK);
430 if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0)
432 debug(2, "copyin %ld bytes from %p -> %p", au->au_length, au->au_buffer, dp);
435 if ((ac = amr_alloccmd(sc)) == NULL) {
440 /* handle SCSI passthrough command */
441 if (au->au_cmd[0] == AMR_CMD_PASS) {
442 apt = kmalloc(sizeof(*apt), M_DEVBUF, M_WAITOK | M_ZERO);
445 apt->ap_cdb_length = au->au_cmd[2];
446 bcopy(&au->au_cmd[3], &apt->ap_cdb[0], apt->ap_cdb_length);
448 /* build passthrough */
449 apt->ap_timeout = au->au_cmd[apt->ap_cdb_length + 3] & 0x07;
450 apt->ap_ars = (au->au_cmd[apt->ap_cdb_length + 3] & 0x08) ? 1 : 0;
451 apt->ap_islogical = (au->au_cmd[apt->ap_cdb_length + 3] & 0x80) ? 1 : 0;
452 apt->ap_logical_drive_no = au->au_cmd[apt->ap_cdb_length + 4];
453 apt->ap_channel = au->au_cmd[apt->ap_cdb_length + 5];
454 apt->ap_scsi_id = au->au_cmd[apt->ap_cdb_length + 6];
455 apt->ap_request_sense_length = 14;
456 apt->ap_data_transfer_length = au->au_length;
457 /* XXX what about the request-sense area? does the caller want it? */
461 ac->ac_length = sizeof(*apt);
462 ac->ac_flags |= AMR_CMD_DATAOUT;
463 ac->ac_ccb_data = dp;
464 ac->ac_ccb_length = au->au_length;
465 if (au->au_direction & AMR_IO_READ)
466 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
467 if (au->au_direction & AMR_IO_WRITE)
468 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
470 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
473 /* direct command to controller */
474 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
476 /* copy pertinent mailbox items */
477 mbi->mb_command = au->au_cmd[0];
478 mbi->mb_channel = au->au_cmd[1];
479 mbi->mb_param = au->au_cmd[2];
480 mbi->mb_pad[0] = au->au_cmd[3];
481 mbi->mb_drive = au->au_cmd[4];
483 /* build the command */
485 ac->ac_length = au->au_length;
486 if (au->au_direction & AMR_IO_READ)
487 ac->ac_flags |= AMR_CMD_DATAIN;
488 if (au->au_direction & AMR_IO_WRITE)
489 ac->ac_flags |= AMR_CMD_DATAOUT;
492 /* run the command */
493 if ((error = amr_wait_command(ac)) != 0)
496 /* copy out data and set status */
497 if (au->au_length != 0)
498 error = copyout(dp, au->au_buffer, au->au_length);
499 debug(2, "copyout %ld bytes from %p -> %p", au->au_length, dp, au->au_buffer);
501 debug(2, "%16d", (int)dp);
502 au->au_status = ac->ac_status;
506 debug(1, "unknown ioctl 0x%lx", cmd);
514 kfree(apt, M_DEVBUF);
520 /********************************************************************************
521 ********************************************************************************
523 ********************************************************************************
524 ********************************************************************************/
526 /********************************************************************************
527 * Perform a periodic check of the controller status
530 amr_periodic(void *data)
532 struct amr_softc *sc = (struct amr_softc *)data;
536 /* XXX perform periodic status checks here */
538 /* compensate for missed interrupts */
542 callout_reset(&sc->amr_timeout, hz, amr_periodic, sc);
545 /********************************************************************************
546 ********************************************************************************
548 ********************************************************************************
549 ********************************************************************************/
551 /********************************************************************************
552 * Interrogate the controller for the operational parameters we require.
555 amr_query_controller(struct amr_softc *sc)
557 struct amr_enquiry3 *aex;
558 struct amr_prodinfo *ap;
559 struct amr_enquiry *ae;
563 * If we haven't found the real limit yet, let us have a couple of commands in
564 * order to be able to probe.
566 if (sc->amr_maxio == 0)
570 * Greater than 10 byte cdb support
572 sc->support_ext_cdb = amr_support_ext_cdb(sc);
574 if(sc->support_ext_cdb) {
575 debug(2,"supports extended CDBs.");
579 * Try to issue an ENQUIRY3 command
581 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
582 AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) {
585 * Fetch current state of logical drives.
587 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
588 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
589 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
590 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
591 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
592 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
594 kfree(aex, M_DEVBUF);
597 * Get product info for channel count.
599 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) {
600 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
603 sc->amr_maxdrives = 40;
604 sc->amr_maxchan = ap->ap_nschan;
605 sc->amr_maxio = ap->ap_maxio;
606 sc->amr_type |= AMR_TYPE_40LD;
611 /* failed, try the 8LD ENQUIRY commands */
612 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) {
613 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) {
614 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
617 ae->ae_signature = 0;
621 * Fetch current state of logical drives.
623 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
624 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
625 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
626 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
627 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
628 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
631 sc->amr_maxdrives = 8;
632 sc->amr_maxchan = ae->ae_adapter.aa_channels;
633 sc->amr_maxio = ae->ae_adapter.aa_maxio;
638 * Mark remaining drives as unused.
640 for (; ldrv < AMR_MAXLD; ldrv++)
641 sc->amr_drive[ldrv].al_size = 0xffffffff;
644 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
645 * the controller's reported value, and lockups have been seen when we do.
647 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
652 /********************************************************************************
653 * Run a generic enquiry-style command.
656 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual)
658 struct amr_command *ac;
668 /* get ourselves a command buffer */
669 if ((ac = amr_alloccmd(sc)) == NULL)
671 /* allocate the response structure */
672 result = kmalloc(bufsize, M_DEVBUF, M_INTWAIT);
673 /* set command flags */
674 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
676 /* point the command at our data */
677 ac->ac_data = result;
678 ac->ac_length = bufsize;
680 /* build the command proper */
681 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
686 /* can't assume that interrupts are going to work here, so play it safe */
687 if (sc->amr_poll_command(ac))
689 error = ac->ac_status;
694 if ((error != 0) && (result != NULL)) {
695 kfree(result, M_DEVBUF);
701 /********************************************************************************
702 * Flush the controller's internal cache, return status.
705 amr_flush(struct amr_softc *sc)
707 struct amr_command *ac;
710 /* get ourselves a command buffer */
712 if ((ac = amr_alloccmd(sc)) == NULL)
714 /* set command flags */
715 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
717 /* build the command proper */
718 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
720 /* we have to poll, as the system may be going down or otherwise damaged */
721 if (sc->amr_poll_command(ac))
723 error = ac->ac_status;
731 /********************************************************************************
732 * Detect extented cdb >> greater than 10 byte cdb support
733 * returns '1' means this support exist
734 * returns '0' means this support doesn't exist
737 amr_support_ext_cdb(struct amr_softc *sc)
739 struct amr_command *ac;
743 /* get ourselves a command buffer */
745 if ((ac = amr_alloccmd(sc)) == NULL)
747 /* set command flags */
748 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
750 /* build the command proper */
751 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
756 /* we have to poll, as the system may be going down or otherwise damaged */
757 if (sc->amr_poll_command(ac))
759 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
769 /********************************************************************************
770 * Try to find I/O work for the controller from one or more of the work queues.
772 * We make the assumption that if the controller is not ready to take a command
773 * at some given time, it will generate an interrupt at some later time when
777 amr_startio(struct amr_softc *sc)
779 struct amr_command *ac;
781 /* spin until something prevents us from doing any work */
784 /* try to get a ready command */
785 ac = amr_dequeue_ready(sc);
787 /* if that failed, build a command from a bio */
789 (void)amr_bio_command(sc, &ac);
791 /* if that failed, build a command from a ccb */
793 (void)amr_cam_command(sc, &ac);
795 /* if we don't have anything to do, give up */
799 /* try to give the command to the controller; if this fails save it for later and give up */
801 debug(2, "controller busy, command deferred");
802 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
808 /********************************************************************************
809 * Handle completion of an I/O command.
812 amr_completeio(struct amr_command *ac)
814 struct amr_softc *sc = ac->ac_sc;
816 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
817 ac->ac_bio->bio_buf->b_error = EIO;
818 ac->ac_bio->bio_buf->b_flags |= B_ERROR;
820 device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status);
821 /* amr_printcommand(ac);*/
823 amrd_intr(ac->ac_bio);
827 /********************************************************************************
828 ********************************************************************************
830 ********************************************************************************
831 ********************************************************************************/
833 /********************************************************************************
834 * Convert a bio off the top of the bio queue into a command.
837 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
839 struct amr_command *ac;
840 struct amrd_softc *amrd;
851 /* get a bio to work on */
852 if ((bio = amr_dequeue_bio(sc)) == NULL)
856 if ((ac = amr_alloccmd(sc)) == NULL) {
861 /* connect the bio to the command */
862 ac->ac_complete = amr_completeio;
864 ac->ac_data = bio->bio_buf->b_data;
865 ac->ac_length = bio->bio_buf->b_bcount;
867 switch (bio->bio_buf->b_cmd) {
869 ac->ac_flags |= AMR_CMD_DATAIN;
873 ac->ac_flags |= AMR_CMD_DATAOUT;
874 cmd = AMR_CMD_LWRITE;
877 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
884 amrd = (struct amrd_softc *)bio->bio_driver_info;
885 driveno = amrd->amrd_drive - sc->amr_drive;
886 blkcount = (bio->bio_buf->b_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
888 lba = bio->bio_offset / AMR_BLKSIZE;
889 KKASSERT(lba < 0x100000000ULL);
891 ac->ac_mailbox.mb_command = cmd;
892 ac->ac_mailbox.mb_blkcount = blkcount;
893 ac->ac_mailbox.mb_lba = lba;
894 ac->ac_mailbox.mb_drive = driveno;
895 /* we fill in the s/g related data when the command is mapped */
897 if ((lba + blkcount) > sc->amr_drive[driveno].al_size)
898 device_printf(sc->amr_dev, "I/O beyond end of unit (%ju,%d > %lu)\n",
899 (uintmax_t)lba, blkcount,
900 (u_long)sc->amr_drive[driveno].al_size);
906 if (bio != NULL) /* this breaks ordering... */
907 amr_enqueue_bio(sc, bio);
913 /********************************************************************************
914 * Take a command, submit it to the controller and sleep until it completes
915 * or fails. Interrupts must be enabled, returns nonzero on error.
918 amr_wait_command(struct amr_command *ac)
924 ac->ac_complete = NULL;
925 ac->ac_flags |= AMR_CMD_SLEEP;
926 if ((error = amr_start(ac)) != 0)
930 /* XXX better timeout? */
931 while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) {
932 tsleep(ac, PCATCH, "amrwcmd", hz);
937 /********************************************************************************
938 * Take a command, submit it to the controller and busy-wait for it to return.
939 * Returns nonzero on error. Can be safely called with interrupts enabled.
942 amr_std_poll_command(struct amr_command *ac)
944 struct amr_softc *sc = ac->ac_sc;
949 ac->ac_complete = NULL;
950 if ((error = amr_start(ac)) != 0)
956 * Poll for completion, although the interrupt handler may beat us to it.
957 * Note that the timeout here is somewhat arbitrary.
961 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
962 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
965 /* XXX the slot is now marked permanently busy */
967 device_printf(sc->amr_dev, "polled command timeout\n");
972 /********************************************************************************
973 * Take a command, submit it to the controller and busy-wait for it to return.
974 * Returns nonzero on error. Can be safely called with interrupts enabled.
977 amr_quartz_poll_command(struct amr_command *ac)
979 struct amr_softc *sc = ac->ac_sc;
984 /* now we have a slot, we can map the command (unmapped in amr_complete) */
989 if (sc->amr_state & AMR_STATE_INTEN) {
991 while (sc->amr_busyslots) {
992 tsleep(sc, PCATCH, "amrpoll", hz);
998 if(sc->amr_busyslots) {
999 device_printf(sc->amr_dev, "adapter is busy\n");
1007 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1009 /* clear the poll/ack fields in the mailbox */
1010 sc->amr_mailbox->mb_ident = 0xFE;
1011 sc->amr_mailbox->mb_nstatus = 0xFF;
1012 sc->amr_mailbox->mb_status = 0xFF;
1013 sc->amr_mailbox->mb_poll = 0;
1014 sc->amr_mailbox->mb_ack = 0;
1015 sc->amr_mailbox->mb_busy = 1;
1017 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1019 while(sc->amr_mailbox->mb_nstatus == 0xFF);
1020 while(sc->amr_mailbox->mb_status == 0xFF);
1021 ac->ac_status=sc->amr_mailbox->mb_status;
1022 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1023 while(sc->amr_mailbox->mb_poll != 0x77);
1024 sc->amr_mailbox->mb_poll = 0;
1025 sc->amr_mailbox->mb_ack = 0x77;
1027 /* acknowledge that we have the commands */
1028 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1029 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK);
1033 /* unmap the command's data buffer */
1039 /********************************************************************************
1040 * Get a free command slot for a command if it doesn't already have one.
1042 * May be safely called multiple times for a given command.
1045 amr_getslot(struct amr_command *ac)
1047 struct amr_softc *sc = ac->ac_sc;
1048 int slot, limit, error;
1052 /* if the command already has a slot, don't try to give it another one */
1053 if (ac->ac_slot != 0)
1056 /* enforce slot usage limit */
1057 limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4;
1058 if (sc->amr_busyslots > limit)
1062 * Allocate a slot. XXX linear scan is slow
1066 for (slot = 0; slot < sc->amr_maxio; slot++) {
1067 if (sc->amr_busycmd[slot] == NULL) {
1068 sc->amr_busycmd[slot] = ac;
1069 sc->amr_busyslots++;
1080 /********************************************************************************
1081 * Map/unmap (ac)'s data in the controller's addressable space as required.
1083 * These functions may be safely called multiple times on a given command.
1086 amr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1088 struct amr_command *ac = (struct amr_command *)arg;
1089 struct amr_softc *sc = ac->ac_sc;
1090 struct amr_sgentry *sg;
1096 /* get base address of s/g table */
1097 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1099 /* save data physical address */
1100 ac->ac_dataphys = segs[0].ds_addr;
1102 /* for AMR_CMD_CONFIG the s/g count goes elsewhere */
1103 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG) {
1104 sgc = &(((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param);
1106 sgc = &ac->ac_mailbox.mb_nsgelem;
1109 /* decide whether we need to populate the s/g table */
1110 if (nsegments < 2) {
1112 ac->ac_mailbox.mb_nsgelem = 0;
1113 ac->ac_mailbox.mb_physaddr = ac->ac_dataphys;
1115 ac->ac_mailbox.mb_nsgelem = nsegments;
1117 ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1118 for (i = 0; i < nsegments; i++, sg++) {
1119 sg->sg_addr = segs[i].ds_addr;
1120 sg->sg_count = segs[i].ds_len;
1126 amr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1128 struct amr_command *ac = (struct amr_command *)arg;
1129 struct amr_softc *sc = ac->ac_sc;
1130 struct amr_sgentry *sg;
1131 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
1132 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
1135 /* get base address of s/g table */
1136 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1138 /* decide whether we need to populate the s/g table */
1139 if( ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS ) {
1140 if (nsegments < 2) {
1141 aep->ap_no_sg_elements = 0;
1142 aep->ap_data_transfer_address = segs[0].ds_addr;
1144 /* save s/g table information in passthrough */
1145 aep->ap_no_sg_elements = nsegments;
1146 aep->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1147 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1148 for (i = 0; i < nsegments; i++, sg++) {
1149 sg->sg_addr = segs[i].ds_addr;
1150 sg->sg_count = segs[i].ds_len;
1151 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1154 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1155 aep->ap_no_sg_elements, aep->ap_data_transfer_address, ac->ac_dataphys);
1157 if (nsegments < 2) {
1158 ap->ap_no_sg_elements = 0;
1159 ap->ap_data_transfer_address = segs[0].ds_addr;
1161 /* save s/g table information in passthrough */
1162 ap->ap_no_sg_elements = nsegments;
1163 ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1164 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1165 for (i = 0; i < nsegments; i++, sg++) {
1166 sg->sg_addr = segs[i].ds_addr;
1167 sg->sg_count = segs[i].ds_len;
1168 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1171 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1172 ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys);
1177 amr_mapcmd(struct amr_command *ac)
1179 struct amr_softc *sc = ac->ac_sc;
1183 /* if the command involves data at all, and hasn't been mapped */
1184 if (!(ac->ac_flags & AMR_CMD_MAPPED)) {
1186 if (ac->ac_data != NULL) {
1187 /* map the data buffers into bus space and build the s/g list */
1188 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length,
1189 amr_setup_dmamap, ac, 0);
1190 if (ac->ac_flags & AMR_CMD_DATAIN)
1191 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD);
1192 if (ac->ac_flags & AMR_CMD_DATAOUT)
1193 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE);
1196 if (ac->ac_ccb_data != NULL) {
1197 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length,
1198 amr_setup_ccbmap, ac, 0);
1199 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1200 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD);
1201 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1202 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE);
1204 ac->ac_flags |= AMR_CMD_MAPPED;
1209 amr_unmapcmd(struct amr_command *ac)
1211 struct amr_softc *sc = ac->ac_sc;
1215 /* if the command involved data at all and was mapped */
1216 if (ac->ac_flags & AMR_CMD_MAPPED) {
1218 if (ac->ac_data != NULL) {
1219 if (ac->ac_flags & AMR_CMD_DATAIN)
1220 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD);
1221 if (ac->ac_flags & AMR_CMD_DATAOUT)
1222 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE);
1223 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap);
1226 if (ac->ac_ccb_data != NULL) {
1227 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1228 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD);
1229 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1230 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE);
1231 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap);
1233 ac->ac_flags &= ~AMR_CMD_MAPPED;
1237 /********************************************************************************
1238 * Take a command and give it to the controller, returns 0 if successful, or
1239 * EBUSY if the command should be retried later.
1242 amr_start(struct amr_command *ac)
1244 struct amr_softc *sc = ac->ac_sc;
1249 /* mark command as busy so that polling consumer can tell */
1250 ac->ac_flags |= AMR_CMD_BUSY;
1252 /* get a command slot (freed in amr_done) */
1253 if (amr_getslot(ac))
1256 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1259 /* mark the new mailbox we are going to copy in as busy */
1260 ac->ac_mailbox.mb_busy = 1;
1262 /* clear the poll/ack fields in the mailbox */
1263 sc->amr_mailbox->mb_poll = 0;
1264 sc->amr_mailbox->mb_ack = 0;
1267 * Save the slot number so that we can locate this command when complete.
1268 * Note that ident = 0 seems to be special, so we don't use it.
1270 ac->ac_mailbox.mb_ident = ac->ac_slot + 1;
1273 * Spin waiting for the mailbox, give up after ~1 second. We expect the
1274 * controller to be able to handle our I/O.
1276 * XXX perhaps we should wait for less time, and count on the deferred command
1277 * handling to deal with retries?
1279 debug(4, "wait for mailbox");
1280 for (i = 10000, done = 0; (i > 0) && !done; i--) {
1283 /* is the mailbox free? */
1284 if (sc->amr_mailbox->mb_busy == 0) {
1285 debug(4, "got mailbox");
1286 sc->amr_mailbox64->mb64_segment = 0;
1287 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1290 /* not free, spin waiting */
1292 debug(4, "busy flag %x\n", sc->amr_mailbox->mb_busy);
1293 /* this is somewhat ugly */
1300 * Now give the command to the controller
1303 if (sc->amr_submit_command(sc)) {
1304 /* the controller wasn't ready to take the command, forget that we tried to post it */
1305 sc->amr_mailbox->mb_busy = 0;
1308 debug(3, "posted command");
1313 * The controller wouldn't take the command. Return the command as busy
1314 * so that it is retried later.
1319 /********************************************************************************
1320 * Extract one or more completed commands from the controller (sc)
1322 * Returns nonzero if any commands on the work queue were marked as completed.
1325 amr_done(struct amr_softc *sc)
1327 struct amr_command *ac;
1328 struct amr_mailbox mbox;
1333 /* See if there's anything for us to do */
1336 /* loop collecting completed commands */
1338 /* poll for a completed command's identifier and status */
1339 if (sc->amr_get_work(sc, &mbox)) {
1342 /* iterate over completed commands in this result */
1343 for (i = 0; i < mbox.mb_nstatus; i++) {
1344 /* get pointer to busy command */
1345 idx = mbox.mb_completed[i] - 1;
1346 ac = sc->amr_busycmd[idx];
1348 /* really a busy command? */
1351 /* pull the command from the busy index */
1352 sc->amr_busycmd[idx] = NULL;
1353 sc->amr_busyslots--;
1355 /* save status for later use */
1356 ac->ac_status = mbox.mb_status;
1357 amr_enqueue_completed(ac);
1358 debug(3, "completed command with status %x", mbox.mb_status);
1360 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1364 break; /* no work */
1368 /* if we've completed any commands, try posting some more */
1372 /* handle completion and timeouts */
1373 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1374 if (sc->amr_state & AMR_STATE_INTEN)
1375 taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete);
1378 amr_complete(sc, 0);
1383 /********************************************************************************
1384 * Do completion processing on done commands on (sc)
1387 amr_complete(void *context, int pending)
1389 struct amr_softc *sc = (struct amr_softc *)context;
1390 struct amr_command *ac;
1394 /* pull completed commands off the queue */
1396 ac = amr_dequeue_completed(sc);
1400 /* unmap the command's data buffer */
1403 /* unbusy the command */
1404 ac->ac_flags &= ~AMR_CMD_BUSY;
1407 * Is there a completion handler?
1409 if (ac->ac_complete != NULL) {
1410 ac->ac_complete(ac);
1413 * Is someone sleeping on this one?
1415 } else if (ac->ac_flags & AMR_CMD_SLEEP) {
1419 if(!sc->amr_busyslots) {
1425 /********************************************************************************
1426 ********************************************************************************
1427 Command Buffer Management
1428 ********************************************************************************
1429 ********************************************************************************/
1431 /********************************************************************************
1432 * Get a new command buffer.
1434 * This may return NULL in low-memory cases.
1436 * If possible, we recycle a command buffer that's been used before.
1438 struct amr_command *
1439 amr_alloccmd(struct amr_softc *sc)
1441 struct amr_command *ac;
1445 ac = amr_dequeue_free(sc);
1447 amr_alloccmd_cluster(sc);
1448 ac = amr_dequeue_free(sc);
1453 /* clear out significant fields */
1456 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1460 ac->ac_ccb_data = NULL;
1461 ac->ac_complete = NULL;
1465 /********************************************************************************
1466 * Release a command buffer for recycling.
1469 amr_releasecmd(struct amr_command *ac)
1473 amr_enqueue_free(ac);
1476 /********************************************************************************
1477 * Allocate a new command cluster and initialise it.
1480 amr_alloccmd_cluster(struct amr_softc *sc)
1482 struct amr_command_cluster *acc;
1483 struct amr_command *ac;
1486 acc = kmalloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_INTWAIT);
1488 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1490 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1491 ac = &acc->acc_command[i];
1492 bzero(ac, sizeof(*ac));
1494 if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) &&
1495 !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap))
1500 /********************************************************************************
1501 * Free a command cluster
1504 amr_freecmd_cluster(struct amr_command_cluster *acc)
1506 struct amr_softc *sc = acc->acc_command[0].ac_sc;
1509 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++)
1510 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
1511 kfree(acc, M_DEVBUF);
1514 /********************************************************************************
1515 ********************************************************************************
1516 Interface-specific Shims
1517 ********************************************************************************
1518 ********************************************************************************/
1520 /********************************************************************************
1521 * Tell the controller that the mailbox contains a valid command
1524 amr_quartz_submit_command(struct amr_softc *sc)
1528 if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT)
1530 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1535 amr_std_submit_command(struct amr_softc *sc)
1539 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG)
1541 AMR_SPOST_COMMAND(sc);
1545 /********************************************************************************
1546 * Claim any work that the controller has completed; acknowledge completion,
1547 * save details of the completion in (mbsave)
1550 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1560 /* work waiting for us? */
1561 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
1563 /* save mailbox, which contains a list of completed commands */
1564 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1566 /* acknowledge interrupt */
1567 AMR_QPUT_ODB(sc, AMR_QODB_READY);
1569 /* acknowledge that we have the commands */
1570 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1572 #ifndef AMR_QUARTZ_GOFASTER
1574 * This waits for the controller to notice that we've taken the
1575 * command from it. It's very inefficient, and we shouldn't do it,
1576 * but if we remove this code, we stop completing commands under
1579 * Peter J says we shouldn't do this. The documentation says we
1580 * should. Who is right?
1582 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1583 ; /* XXX aiee! what if it dies? */
1586 worked = 1; /* got some work */
1594 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1604 /* check for valid interrupt status */
1605 istat = AMR_SGET_ISTAT(sc);
1606 if ((istat & AMR_SINTR_VALID) != 0) {
1607 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
1609 /* save mailbox, which contains a list of completed commands */
1610 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1612 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
1620 /********************************************************************************
1621 * Notify the controller of the mailbox location.
1624 amr_std_attach_mailbox(struct amr_softc *sc)
1627 /* program the mailbox physical address */
1628 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
1629 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
1630 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
1631 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
1632 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
1634 /* clear any outstanding interrupt and enable interrupts proper */
1635 AMR_SACK_INTERRUPT(sc);
1636 AMR_SENABLE_INTR(sc);
1639 #ifdef AMR_BOARD_INIT
1640 /********************************************************************************
1641 * Initialise the controller
1644 amr_quartz_init(struct amr_softc *sc)
1646 int status, ostatus;
1648 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
1653 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
1654 if (status != ostatus) {
1655 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
1659 case AMR_QINIT_NOMEM:
1662 case AMR_QINIT_SCAN:
1663 /* XXX we could print channel/target here */
1671 amr_std_init(struct amr_softc *sc)
1673 int status, ostatus;
1675 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
1680 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
1681 if (status != ostatus) {
1682 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
1686 case AMR_SINIT_NOMEM:
1689 case AMR_SINIT_INPROG:
1690 /* XXX we could print channel/target here? */
1698 /********************************************************************************
1699 ********************************************************************************
1701 ********************************************************************************
1702 ********************************************************************************/
1704 /********************************************************************************
1705 * Identify the controller and print some information about it.
1708 amr_describe_controller(struct amr_softc *sc)
1710 struct amr_prodinfo *ap;
1711 struct amr_enquiry *ae;
1715 * Try to get 40LD product info, which tells us what the card is labelled as.
1717 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) {
1718 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
1719 ap->ap_product, ap->ap_firmware, ap->ap_bios,
1722 kfree(ap, M_DEVBUF);
1727 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
1729 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) {
1730 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
1732 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) {
1735 * Try to work it out based on the PCI signatures.
1737 switch (pci_get_device(sc->amr_dev)) {
1739 prod = "Series 428";
1742 prod = "Series 434";
1745 prod = "unknown controller";
1749 device_printf(sc->amr_dev, "<unsupported controller>\n");
1754 * HP NetRaid controllers have a special encoding of the firmware and
1755 * BIOS versions. The AMI version seems to have it as strings whereas
1756 * the HP version does it with a leading uppercase character and two
1760 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
1761 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
1762 ae->ae_adapter.aa_firmware[1] < ' ' &&
1763 ae->ae_adapter.aa_firmware[0] < ' ' &&
1764 ae->ae_adapter.aa_bios[2] >= 'A' &&
1765 ae->ae_adapter.aa_bios[2] <= 'Z' &&
1766 ae->ae_adapter.aa_bios[1] < ' ' &&
1767 ae->ae_adapter.aa_bios[0] < ' ') {
1769 /* this looks like we have an HP NetRaid version of the MegaRaid */
1771 if(ae->ae_signature == AMR_SIG_438) {
1772 /* the AMI 438 is a NetRaid 3si in HP-land */
1773 prod = "HP NetRaid 3si";
1776 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
1777 prod, ae->ae_adapter.aa_firmware[2],
1778 ae->ae_adapter.aa_firmware[1],
1779 ae->ae_adapter.aa_firmware[0],
1780 ae->ae_adapter.aa_bios[2],
1781 ae->ae_adapter.aa_bios[1],
1782 ae->ae_adapter.aa_bios[0],
1783 ae->ae_adapter.aa_memorysize);
1785 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
1786 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
1787 ae->ae_adapter.aa_memorysize);
1789 kfree(ae, M_DEVBUF);
1793 amr_dump_blocks(struct amr_softc *sc, int unit, u_int64_t lba, void *data, int blks)
1796 struct amr_command *ac;
1801 sc->amr_state &= ~AMR_STATE_INTEN;
1803 /* get ourselves a command buffer */
1804 if ((ac = amr_alloccmd(sc)) == NULL)
1806 /* set command flags */
1807 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1809 /* point the command at our data */
1811 ac->ac_length = blks * AMR_BLKSIZE;
1813 /* build the command proper */
1814 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
1815 ac->ac_mailbox.mb_blkcount = blks;
1816 ac->ac_mailbox.mb_lba = lba;
1817 ac->ac_mailbox.mb_drive = unit;
1819 /* can't assume that interrupts are going to work here, so play it safe */
1820 if (sc->amr_poll_command(ac))
1822 error = ac->ac_status;
1828 sc->amr_state |= AMR_STATE_INTEN;
1835 /********************************************************************************
1836 * Print the command (ac) in human-readable format
1840 amr_printcommand(struct amr_command *ac)
1842 struct amr_softc *sc = ac->ac_sc;
1843 struct amr_sgentry *sg;
1846 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
1847 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
1848 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
1849 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
1850 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
1851 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
1852 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
1853 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
1855 /* get base address of s/g table */
1856 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1857 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
1858 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);