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 1.25 2008/01/06 16:55:50 swildner 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 dp = kmalloc(au->au_length, M_DEVBUF, M_WAITOK);
434 if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0)
436 debug(2, "copyin %ld bytes from %p -> %p", au->au_length, au->au_buffer, dp);
439 if ((ac = amr_alloccmd(sc)) == NULL) {
444 /* handle SCSI passthrough command */
445 if (au->au_cmd[0] == AMR_CMD_PASS) {
446 apt = kmalloc(sizeof(*apt), M_DEVBUF, M_WAITOK | M_ZERO);
449 apt->ap_cdb_length = au->au_cmd[2];
450 bcopy(&au->au_cmd[3], &apt->ap_cdb[0], apt->ap_cdb_length);
452 /* build passthrough */
453 apt->ap_timeout = au->au_cmd[apt->ap_cdb_length + 3] & 0x07;
454 apt->ap_ars = (au->au_cmd[apt->ap_cdb_length + 3] & 0x08) ? 1 : 0;
455 apt->ap_islogical = (au->au_cmd[apt->ap_cdb_length + 3] & 0x80) ? 1 : 0;
456 apt->ap_logical_drive_no = au->au_cmd[apt->ap_cdb_length + 4];
457 apt->ap_channel = au->au_cmd[apt->ap_cdb_length + 5];
458 apt->ap_scsi_id = au->au_cmd[apt->ap_cdb_length + 6];
459 apt->ap_request_sense_length = 14;
460 apt->ap_data_transfer_length = au->au_length;
461 /* XXX what about the request-sense area? does the caller want it? */
465 ac->ac_length = sizeof(*apt);
466 ac->ac_flags |= AMR_CMD_DATAOUT;
467 ac->ac_ccb_data = dp;
468 ac->ac_ccb_length = au->au_length;
469 if (au->au_direction & AMR_IO_READ)
470 ac->ac_flags |= AMR_CMD_CCB_DATAIN;
471 if (au->au_direction & AMR_IO_WRITE)
472 ac->ac_flags |= AMR_CMD_CCB_DATAOUT;
474 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
477 /* direct command to controller */
478 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
480 /* copy pertinent mailbox items */
481 mbi->mb_command = au->au_cmd[0];
482 mbi->mb_channel = au->au_cmd[1];
483 mbi->mb_param = au->au_cmd[2];
484 mbi->mb_pad[0] = au->au_cmd[3];
485 mbi->mb_drive = au->au_cmd[4];
487 /* build the command */
489 ac->ac_length = au->au_length;
490 if (au->au_direction & AMR_IO_READ)
491 ac->ac_flags |= AMR_CMD_DATAIN;
492 if (au->au_direction & AMR_IO_WRITE)
493 ac->ac_flags |= AMR_CMD_DATAOUT;
496 /* run the command */
497 if ((error = amr_wait_command(ac)) != 0)
500 /* copy out data and set status */
501 if (au->au_length != 0)
502 error = copyout(dp, au->au_buffer, au->au_length);
503 debug(2, "copyout %ld bytes from %p -> %p", au->au_length, dp, au->au_buffer);
505 debug(2, "%16d", (int)dp);
506 au->au_status = ac->ac_status;
510 debug(1, "unknown ioctl 0x%lx", cmd);
518 kfree(apt, M_DEVBUF);
524 /********************************************************************************
525 ********************************************************************************
527 ********************************************************************************
528 ********************************************************************************/
530 /********************************************************************************
531 * Perform a periodic check of the controller status
534 amr_periodic(void *data)
536 struct amr_softc *sc = (struct amr_softc *)data;
540 /* XXX perform periodic status checks here */
542 /* compensate for missed interrupts */
546 callout_reset(&sc->amr_timeout, hz, amr_periodic, sc);
549 /********************************************************************************
550 ********************************************************************************
552 ********************************************************************************
553 ********************************************************************************/
555 /********************************************************************************
556 * Interrogate the controller for the operational parameters we require.
559 amr_query_controller(struct amr_softc *sc)
561 struct amr_enquiry3 *aex;
562 struct amr_prodinfo *ap;
563 struct amr_enquiry *ae;
567 * If we haven't found the real limit yet, let us have a couple of commands in
568 * order to be able to probe.
570 if (sc->amr_maxio == 0)
574 * Greater than 10 byte cdb support
576 sc->support_ext_cdb = amr_support_ext_cdb(sc);
578 if(sc->support_ext_cdb) {
579 debug(2,"supports extended CDBs.");
583 * Try to issue an ENQUIRY3 command
585 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
586 AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) {
589 * Fetch current state of logical drives.
591 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
592 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
593 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
594 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
595 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
596 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
598 kfree(aex, M_DEVBUF);
601 * Get product info for channel count.
603 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) {
604 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
607 sc->amr_maxdrives = 40;
608 sc->amr_maxchan = ap->ap_nschan;
609 sc->amr_maxio = ap->ap_maxio;
610 sc->amr_type |= AMR_TYPE_40LD;
615 /* failed, try the 8LD ENQUIRY commands */
616 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) {
617 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) {
618 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
621 ae->ae_signature = 0;
625 * Fetch current state of logical drives.
627 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
628 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
629 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
630 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
631 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
632 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
635 sc->amr_maxdrives = 8;
636 sc->amr_maxchan = ae->ae_adapter.aa_channels;
637 sc->amr_maxio = ae->ae_adapter.aa_maxio;
642 * Mark remaining drives as unused.
644 for (; ldrv < AMR_MAXLD; ldrv++)
645 sc->amr_drive[ldrv].al_size = 0xffffffff;
648 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
649 * the controller's reported value, and lockups have been seen when we do.
651 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
656 /********************************************************************************
657 * Run a generic enquiry-style command.
660 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual)
662 struct amr_command *ac;
672 /* get ourselves a command buffer */
673 if ((ac = amr_alloccmd(sc)) == NULL)
675 /* allocate the response structure */
676 result = kmalloc(bufsize, M_DEVBUF, M_INTWAIT);
677 /* set command flags */
678 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
680 /* point the command at our data */
681 ac->ac_data = result;
682 ac->ac_length = bufsize;
684 /* build the command proper */
685 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
690 /* can't assume that interrupts are going to work here, so play it safe */
691 if (sc->amr_poll_command(ac))
693 error = ac->ac_status;
698 if ((error != 0) && (result != NULL)) {
699 kfree(result, M_DEVBUF);
705 /********************************************************************************
706 * Flush the controller's internal cache, return status.
709 amr_flush(struct amr_softc *sc)
711 struct amr_command *ac;
714 /* get ourselves a command buffer */
716 if ((ac = amr_alloccmd(sc)) == NULL)
718 /* set command flags */
719 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
721 /* build the command proper */
722 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
724 /* we have to poll, as the system may be going down or otherwise damaged */
725 if (sc->amr_poll_command(ac))
727 error = ac->ac_status;
735 /********************************************************************************
736 * Detect extented cdb >> greater than 10 byte cdb support
737 * returns '1' means this support exist
738 * returns '0' means this support doesn't exist
741 amr_support_ext_cdb(struct amr_softc *sc)
743 struct amr_command *ac;
747 /* get ourselves a command buffer */
749 if ((ac = amr_alloccmd(sc)) == NULL)
751 /* set command flags */
752 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
754 /* build the command proper */
755 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
760 /* we have to poll, as the system may be going down or otherwise damaged */
761 if (sc->amr_poll_command(ac))
763 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
773 /********************************************************************************
774 * Try to find I/O work for the controller from one or more of the work queues.
776 * We make the assumption that if the controller is not ready to take a command
777 * at some given time, it will generate an interrupt at some later time when
781 amr_startio(struct amr_softc *sc)
783 struct amr_command *ac;
785 /* spin until something prevents us from doing any work */
788 /* try to get a ready command */
789 ac = amr_dequeue_ready(sc);
791 /* if that failed, build a command from a bio */
793 (void)amr_bio_command(sc, &ac);
795 /* if that failed, build a command from a ccb */
797 (void)amr_cam_command(sc, &ac);
799 /* if we don't have anything to do, give up */
803 /* try to give the command to the controller; if this fails save it for later and give up */
805 debug(2, "controller busy, command deferred");
806 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
812 /********************************************************************************
813 * Handle completion of an I/O command.
816 amr_completeio(struct amr_command *ac)
818 struct amr_softc *sc = ac->ac_sc;
820 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
821 ac->ac_bio->bio_buf->b_error = EIO;
822 ac->ac_bio->bio_buf->b_flags |= B_ERROR;
824 device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status);
825 /* amr_printcommand(ac);*/
827 amrd_intr(ac->ac_bio);
831 /********************************************************************************
832 ********************************************************************************
834 ********************************************************************************
835 ********************************************************************************/
837 /********************************************************************************
838 * Convert a bio off the top of the bio queue into a command.
841 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
843 struct amr_command *ac;
844 struct amrd_softc *amrd;
855 /* get a bio to work on */
856 if ((bio = amr_dequeue_bio(sc)) == NULL)
860 if ((ac = amr_alloccmd(sc)) == NULL) {
865 /* connect the bio to the command */
866 ac->ac_complete = amr_completeio;
868 ac->ac_data = bio->bio_buf->b_data;
869 ac->ac_length = bio->bio_buf->b_bcount;
870 if (bio->bio_buf->b_cmd == BUF_CMD_READ) {
871 ac->ac_flags |= AMR_CMD_DATAIN;
874 ac->ac_flags |= AMR_CMD_DATAOUT;
875 cmd = AMR_CMD_LWRITE;
877 amrd = (struct amrd_softc *)bio->bio_driver_info;
878 driveno = amrd->amrd_drive - sc->amr_drive;
879 blkcount = (bio->bio_buf->b_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
880 lba = bio->bio_offset / AMR_BLKSIZE;
881 KKASSERT(lba < 0x100000000ULL);
883 ac->ac_mailbox.mb_command = cmd;
884 ac->ac_mailbox.mb_blkcount = blkcount;
885 ac->ac_mailbox.mb_lba = lba;
886 ac->ac_mailbox.mb_drive = driveno;
887 /* we fill in the s/g related data when the command is mapped */
889 if ((lba + blkcount) > sc->amr_drive[driveno].al_size)
890 device_printf(sc->amr_dev, "I/O beyond end of unit (%lld,%d > %lu)\n",
892 (u_long)sc->amr_drive[driveno].al_size);
898 if (bio != NULL) /* this breaks ordering... */
899 amr_enqueue_bio(sc, bio);
905 /********************************************************************************
906 * Take a command, submit it to the controller and sleep until it completes
907 * or fails. Interrupts must be enabled, returns nonzero on error.
910 amr_wait_command(struct amr_command *ac)
916 ac->ac_complete = NULL;
917 ac->ac_flags |= AMR_CMD_SLEEP;
918 if ((error = amr_start(ac)) != 0)
922 /* XXX better timeout? */
923 while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) {
924 tsleep(ac, PCATCH, "amrwcmd", hz);
929 /********************************************************************************
930 * Take a command, submit it to the controller and busy-wait for it to return.
931 * Returns nonzero on error. Can be safely called with interrupts enabled.
934 amr_std_poll_command(struct amr_command *ac)
936 struct amr_softc *sc = ac->ac_sc;
941 ac->ac_complete = NULL;
942 if ((error = amr_start(ac)) != 0)
948 * Poll for completion, although the interrupt handler may beat us to it.
949 * Note that the timeout here is somewhat arbitrary.
953 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
954 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
957 /* XXX the slot is now marked permanently busy */
959 device_printf(sc->amr_dev, "polled command timeout\n");
964 /********************************************************************************
965 * Take a command, submit it to the controller and busy-wait for it to return.
966 * Returns nonzero on error. Can be safely called with interrupts enabled.
969 amr_quartz_poll_command(struct amr_command *ac)
971 struct amr_softc *sc = ac->ac_sc;
976 /* now we have a slot, we can map the command (unmapped in amr_complete) */
981 if (sc->amr_state & AMR_STATE_INTEN) {
983 while (sc->amr_busyslots) {
984 tsleep(sc, PCATCH, "amrpoll", hz);
990 if(sc->amr_busyslots) {
991 device_printf(sc->amr_dev, "adapter is busy\n");
999 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1001 /* clear the poll/ack fields in the mailbox */
1002 sc->amr_mailbox->mb_ident = 0xFE;
1003 sc->amr_mailbox->mb_nstatus = 0xFF;
1004 sc->amr_mailbox->mb_status = 0xFF;
1005 sc->amr_mailbox->mb_poll = 0;
1006 sc->amr_mailbox->mb_ack = 0;
1007 sc->amr_mailbox->mb_busy = 1;
1009 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1011 while(sc->amr_mailbox->mb_nstatus == 0xFF);
1012 while(sc->amr_mailbox->mb_status == 0xFF);
1013 ac->ac_status=sc->amr_mailbox->mb_status;
1014 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1015 while(sc->amr_mailbox->mb_poll != 0x77);
1016 sc->amr_mailbox->mb_poll = 0;
1017 sc->amr_mailbox->mb_ack = 0x77;
1019 /* acknowledge that we have the commands */
1020 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1021 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK);
1025 /* unmap the command's data buffer */
1031 /********************************************************************************
1032 * Get a free command slot for a command if it doesn't already have one.
1034 * May be safely called multiple times for a given command.
1037 amr_getslot(struct amr_command *ac)
1039 struct amr_softc *sc = ac->ac_sc;
1040 int slot, limit, error;
1044 /* if the command already has a slot, don't try to give it another one */
1045 if (ac->ac_slot != 0)
1048 /* enforce slot usage limit */
1049 limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4;
1050 if (sc->amr_busyslots > limit)
1054 * Allocate a slot. XXX linear scan is slow
1058 for (slot = 0; slot < sc->amr_maxio; slot++) {
1059 if (sc->amr_busycmd[slot] == NULL) {
1060 sc->amr_busycmd[slot] = ac;
1061 sc->amr_busyslots++;
1072 /********************************************************************************
1073 * Map/unmap (ac)'s data in the controller's addressable space as required.
1075 * These functions may be safely called multiple times on a given command.
1078 amr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1080 struct amr_command *ac = (struct amr_command *)arg;
1081 struct amr_softc *sc = ac->ac_sc;
1082 struct amr_sgentry *sg;
1088 /* get base address of s/g table */
1089 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1091 /* save data physical address */
1092 ac->ac_dataphys = segs[0].ds_addr;
1094 /* for AMR_CMD_CONFIG the s/g count goes elsewhere */
1095 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG) {
1096 sgc = &(((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param);
1098 sgc = &ac->ac_mailbox.mb_nsgelem;
1101 /* decide whether we need to populate the s/g table */
1102 if (nsegments < 2) {
1104 ac->ac_mailbox.mb_nsgelem = 0;
1105 ac->ac_mailbox.mb_physaddr = ac->ac_dataphys;
1107 ac->ac_mailbox.mb_nsgelem = nsegments;
1109 ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1110 for (i = 0; i < nsegments; i++, sg++) {
1111 sg->sg_addr = segs[i].ds_addr;
1112 sg->sg_count = segs[i].ds_len;
1118 amr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1120 struct amr_command *ac = (struct amr_command *)arg;
1121 struct amr_softc *sc = ac->ac_sc;
1122 struct amr_sgentry *sg;
1123 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data;
1124 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data;
1127 /* get base address of s/g table */
1128 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1130 /* decide whether we need to populate the s/g table */
1131 if( ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS ) {
1132 if (nsegments < 2) {
1133 aep->ap_no_sg_elements = 0;
1134 aep->ap_data_transfer_address = segs[0].ds_addr;
1136 /* save s/g table information in passthrough */
1137 aep->ap_no_sg_elements = nsegments;
1138 aep->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1139 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1140 for (i = 0; i < nsegments; i++, sg++) {
1141 sg->sg_addr = segs[i].ds_addr;
1142 sg->sg_count = segs[i].ds_len;
1143 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1146 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1147 aep->ap_no_sg_elements, aep->ap_data_transfer_address, ac->ac_dataphys);
1149 if (nsegments < 2) {
1150 ap->ap_no_sg_elements = 0;
1151 ap->ap_data_transfer_address = segs[0].ds_addr;
1153 /* save s/g table information in passthrough */
1154 ap->ap_no_sg_elements = nsegments;
1155 ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1156 /* populate s/g table (overwrites previous call which mapped the passthrough) */
1157 for (i = 0; i < nsegments; i++, sg++) {
1158 sg->sg_addr = segs[i].ds_addr;
1159 sg->sg_count = segs[i].ds_len;
1160 debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count);
1163 debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot,
1164 ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys);
1169 amr_mapcmd(struct amr_command *ac)
1171 struct amr_softc *sc = ac->ac_sc;
1175 /* if the command involves data at all, and hasn't been mapped */
1176 if (!(ac->ac_flags & AMR_CMD_MAPPED)) {
1178 if (ac->ac_data != NULL) {
1179 /* map the data buffers into bus space and build the s/g list */
1180 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length,
1181 amr_setup_dmamap, ac, 0);
1182 if (ac->ac_flags & AMR_CMD_DATAIN)
1183 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD);
1184 if (ac->ac_flags & AMR_CMD_DATAOUT)
1185 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE);
1188 if (ac->ac_ccb_data != NULL) {
1189 bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length,
1190 amr_setup_ccbmap, ac, 0);
1191 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1192 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD);
1193 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1194 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE);
1196 ac->ac_flags |= AMR_CMD_MAPPED;
1201 amr_unmapcmd(struct amr_command *ac)
1203 struct amr_softc *sc = ac->ac_sc;
1207 /* if the command involved data at all and was mapped */
1208 if (ac->ac_flags & AMR_CMD_MAPPED) {
1210 if (ac->ac_data != NULL) {
1211 if (ac->ac_flags & AMR_CMD_DATAIN)
1212 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD);
1213 if (ac->ac_flags & AMR_CMD_DATAOUT)
1214 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE);
1215 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap);
1218 if (ac->ac_ccb_data != NULL) {
1219 if (ac->ac_flags & AMR_CMD_CCB_DATAIN)
1220 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD);
1221 if (ac->ac_flags & AMR_CMD_CCB_DATAOUT)
1222 bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE);
1223 bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap);
1225 ac->ac_flags &= ~AMR_CMD_MAPPED;
1229 /********************************************************************************
1230 * Take a command and give it to the controller, returns 0 if successful, or
1231 * EBUSY if the command should be retried later.
1234 amr_start(struct amr_command *ac)
1236 struct amr_softc *sc = ac->ac_sc;
1241 /* mark command as busy so that polling consumer can tell */
1242 ac->ac_flags |= AMR_CMD_BUSY;
1244 /* get a command slot (freed in amr_done) */
1245 if (amr_getslot(ac))
1248 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1251 /* mark the new mailbox we are going to copy in as busy */
1252 ac->ac_mailbox.mb_busy = 1;
1254 /* clear the poll/ack fields in the mailbox */
1255 sc->amr_mailbox->mb_poll = 0;
1256 sc->amr_mailbox->mb_ack = 0;
1259 * Save the slot number so that we can locate this command when complete.
1260 * Note that ident = 0 seems to be special, so we don't use it.
1262 ac->ac_mailbox.mb_ident = ac->ac_slot + 1;
1265 * Spin waiting for the mailbox, give up after ~1 second. We expect the
1266 * controller to be able to handle our I/O.
1268 * XXX perhaps we should wait for less time, and count on the deferred command
1269 * handling to deal with retries?
1271 debug(4, "wait for mailbox");
1272 for (i = 10000, done = 0; (i > 0) && !done; i--) {
1275 /* is the mailbox free? */
1276 if (sc->amr_mailbox->mb_busy == 0) {
1277 debug(4, "got mailbox");
1278 sc->amr_mailbox64->mb64_segment = 0;
1279 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1282 /* not free, spin waiting */
1284 debug(4, "busy flag %x\n", sc->amr_mailbox->mb_busy);
1285 /* this is somewhat ugly */
1292 * Now give the command to the controller
1295 if (sc->amr_submit_command(sc)) {
1296 /* the controller wasn't ready to take the command, forget that we tried to post it */
1297 sc->amr_mailbox->mb_busy = 0;
1300 debug(3, "posted command");
1305 * The controller wouldn't take the command. Return the command as busy
1306 * so that it is retried later.
1311 /********************************************************************************
1312 * Extract one or more completed commands from the controller (sc)
1314 * Returns nonzero if any commands on the work queue were marked as completed.
1317 amr_done(struct amr_softc *sc)
1319 struct amr_command *ac;
1320 struct amr_mailbox mbox;
1325 /* See if there's anything for us to do */
1328 /* loop collecting completed commands */
1330 /* poll for a completed command's identifier and status */
1331 if (sc->amr_get_work(sc, &mbox)) {
1334 /* iterate over completed commands in this result */
1335 for (i = 0; i < mbox.mb_nstatus; i++) {
1336 /* get pointer to busy command */
1337 idx = mbox.mb_completed[i] - 1;
1338 ac = sc->amr_busycmd[idx];
1340 /* really a busy command? */
1343 /* pull the command from the busy index */
1344 sc->amr_busycmd[idx] = NULL;
1345 sc->amr_busyslots--;
1347 /* save status for later use */
1348 ac->ac_status = mbox.mb_status;
1349 amr_enqueue_completed(ac);
1350 debug(3, "completed command with status %x", mbox.mb_status);
1352 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1356 break; /* no work */
1360 /* if we've completed any commands, try posting some more */
1364 /* handle completion and timeouts */
1365 #if defined(__FreeBSD__) && __FreeBSD_version >= 500005
1366 if (sc->amr_state & AMR_STATE_INTEN)
1367 taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete);
1370 amr_complete(sc, 0);
1375 /********************************************************************************
1376 * Do completion processing on done commands on (sc)
1379 amr_complete(void *context, int pending)
1381 struct amr_softc *sc = (struct amr_softc *)context;
1382 struct amr_command *ac;
1386 /* pull completed commands off the queue */
1388 ac = amr_dequeue_completed(sc);
1392 /* unmap the command's data buffer */
1395 /* unbusy the command */
1396 ac->ac_flags &= ~AMR_CMD_BUSY;
1399 * Is there a completion handler?
1401 if (ac->ac_complete != NULL) {
1402 ac->ac_complete(ac);
1405 * Is someone sleeping on this one?
1407 } else if (ac->ac_flags & AMR_CMD_SLEEP) {
1411 if(!sc->amr_busyslots) {
1417 /********************************************************************************
1418 ********************************************************************************
1419 Command Buffer Management
1420 ********************************************************************************
1421 ********************************************************************************/
1423 /********************************************************************************
1424 * Get a new command buffer.
1426 * This may return NULL in low-memory cases.
1428 * If possible, we recycle a command buffer that's been used before.
1430 struct amr_command *
1431 amr_alloccmd(struct amr_softc *sc)
1433 struct amr_command *ac;
1437 ac = amr_dequeue_free(sc);
1439 amr_alloccmd_cluster(sc);
1440 ac = amr_dequeue_free(sc);
1445 /* clear out significant fields */
1448 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1452 ac->ac_ccb_data = NULL;
1453 ac->ac_complete = NULL;
1457 /********************************************************************************
1458 * Release a command buffer for recycling.
1461 amr_releasecmd(struct amr_command *ac)
1465 amr_enqueue_free(ac);
1468 /********************************************************************************
1469 * Allocate a new command cluster and initialise it.
1472 amr_alloccmd_cluster(struct amr_softc *sc)
1474 struct amr_command_cluster *acc;
1475 struct amr_command *ac;
1478 acc = kmalloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_INTWAIT);
1480 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1482 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1483 ac = &acc->acc_command[i];
1484 bzero(ac, sizeof(*ac));
1486 if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) &&
1487 !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap))
1492 /********************************************************************************
1493 * Free a command cluster
1496 amr_freecmd_cluster(struct amr_command_cluster *acc)
1498 struct amr_softc *sc = acc->acc_command[0].ac_sc;
1501 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++)
1502 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
1503 kfree(acc, M_DEVBUF);
1506 /********************************************************************************
1507 ********************************************************************************
1508 Interface-specific Shims
1509 ********************************************************************************
1510 ********************************************************************************/
1512 /********************************************************************************
1513 * Tell the controller that the mailbox contains a valid command
1516 amr_quartz_submit_command(struct amr_softc *sc)
1520 if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT)
1522 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1527 amr_std_submit_command(struct amr_softc *sc)
1531 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG)
1533 AMR_SPOST_COMMAND(sc);
1537 /********************************************************************************
1538 * Claim any work that the controller has completed; acknowledge completion,
1539 * save details of the completion in (mbsave)
1542 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1552 /* work waiting for us? */
1553 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
1555 /* save mailbox, which contains a list of completed commands */
1556 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1558 /* acknowledge interrupt */
1559 AMR_QPUT_ODB(sc, AMR_QODB_READY);
1561 /* acknowledge that we have the commands */
1562 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1564 #ifndef AMR_QUARTZ_GOFASTER
1566 * This waits for the controller to notice that we've taken the
1567 * command from it. It's very inefficient, and we shouldn't do it,
1568 * but if we remove this code, we stop completing commands under
1571 * Peter J says we shouldn't do this. The documentation says we
1572 * should. Who is right?
1574 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1575 ; /* XXX aiee! what if it dies? */
1578 worked = 1; /* got some work */
1586 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
1596 /* check for valid interrupt status */
1597 istat = AMR_SGET_ISTAT(sc);
1598 if ((istat & AMR_SINTR_VALID) != 0) {
1599 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
1601 /* save mailbox, which contains a list of completed commands */
1602 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
1604 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
1612 /********************************************************************************
1613 * Notify the controller of the mailbox location.
1616 amr_std_attach_mailbox(struct amr_softc *sc)
1619 /* program the mailbox physical address */
1620 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
1621 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
1622 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
1623 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
1624 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
1626 /* clear any outstanding interrupt and enable interrupts proper */
1627 AMR_SACK_INTERRUPT(sc);
1628 AMR_SENABLE_INTR(sc);
1631 #ifdef AMR_BOARD_INIT
1632 /********************************************************************************
1633 * Initialise the controller
1636 amr_quartz_init(struct amr_softc *sc)
1638 int status, ostatus;
1640 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
1645 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
1646 if (status != ostatus) {
1647 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
1651 case AMR_QINIT_NOMEM:
1654 case AMR_QINIT_SCAN:
1655 /* XXX we could print channel/target here */
1663 amr_std_init(struct amr_softc *sc)
1665 int status, ostatus;
1667 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
1672 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
1673 if (status != ostatus) {
1674 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
1678 case AMR_SINIT_NOMEM:
1681 case AMR_SINIT_INPROG:
1682 /* XXX we could print channel/target here? */
1690 /********************************************************************************
1691 ********************************************************************************
1693 ********************************************************************************
1694 ********************************************************************************/
1696 /********************************************************************************
1697 * Identify the controller and print some information about it.
1700 amr_describe_controller(struct amr_softc *sc)
1702 struct amr_prodinfo *ap;
1703 struct amr_enquiry *ae;
1707 * Try to get 40LD product info, which tells us what the card is labelled as.
1709 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) {
1710 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
1711 ap->ap_product, ap->ap_firmware, ap->ap_bios,
1714 kfree(ap, M_DEVBUF);
1719 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
1721 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) {
1722 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
1724 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) {
1727 * Try to work it out based on the PCI signatures.
1729 switch (pci_get_device(sc->amr_dev)) {
1731 prod = "Series 428";
1734 prod = "Series 434";
1737 prod = "unknown controller";
1741 prod = "unsupported controller";
1745 * HP NetRaid controllers have a special encoding of the firmware and
1746 * BIOS versions. The AMI version seems to have it as strings whereas
1747 * the HP version does it with a leading uppercase character and two
1751 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
1752 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
1753 ae->ae_adapter.aa_firmware[1] < ' ' &&
1754 ae->ae_adapter.aa_firmware[0] < ' ' &&
1755 ae->ae_adapter.aa_bios[2] >= 'A' &&
1756 ae->ae_adapter.aa_bios[2] <= 'Z' &&
1757 ae->ae_adapter.aa_bios[1] < ' ' &&
1758 ae->ae_adapter.aa_bios[0] < ' ') {
1760 /* this looks like we have an HP NetRaid version of the MegaRaid */
1762 if(ae->ae_signature == AMR_SIG_438) {
1763 /* the AMI 438 is a NetRaid 3si in HP-land */
1764 prod = "HP NetRaid 3si";
1767 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
1768 prod, ae->ae_adapter.aa_firmware[2],
1769 ae->ae_adapter.aa_firmware[1],
1770 ae->ae_adapter.aa_firmware[0],
1771 ae->ae_adapter.aa_bios[2],
1772 ae->ae_adapter.aa_bios[1],
1773 ae->ae_adapter.aa_bios[0],
1774 ae->ae_adapter.aa_memorysize);
1776 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
1777 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
1778 ae->ae_adapter.aa_memorysize);
1780 kfree(ae, M_DEVBUF);
1784 amr_dump_blocks(struct amr_softc *sc, int unit, u_int64_t lba, void *data, int blks)
1787 struct amr_command *ac;
1792 sc->amr_state &= ~AMR_STATE_INTEN;
1794 /* get ourselves a command buffer */
1795 if ((ac = amr_alloccmd(sc)) == NULL)
1797 /* set command flags */
1798 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1800 /* point the command at our data */
1802 ac->ac_length = blks * AMR_BLKSIZE;
1804 /* build the command proper */
1805 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
1806 ac->ac_mailbox.mb_blkcount = blks;
1807 ac->ac_mailbox.mb_lba = lba;
1808 ac->ac_mailbox.mb_drive = unit;
1810 /* can't assume that interrupts are going to work here, so play it safe */
1811 if (sc->amr_poll_command(ac))
1813 error = ac->ac_status;
1819 sc->amr_state |= AMR_STATE_INTEN;
1826 /********************************************************************************
1827 * Print the command (ac) in human-readable format
1831 amr_printcommand(struct amr_command *ac)
1833 struct amr_softc *sc = ac->ac_sc;
1834 struct amr_sgentry *sg;
1837 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
1838 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
1839 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
1840 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
1841 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
1842 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
1843 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
1844 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
1846 /* get base address of s/g table */
1847 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
1848 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
1849 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);