2 * Copyright (c) 1999,2000 Michael Smith
3 * Copyright (c) 2000 BSDi
4 * Copyright (c) 2005 Scott Long
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * Copyright (c) 2002 Eric Moore
30 * Copyright (c) 2002, 2004 LSI Logic Corporation
31 * All rights reserved.
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. The party using or redistributing the source code and binary forms
42 * agrees to the disclaimer below and the terms and conditions set forth
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 #include <sys/cdefs.h>
59 __FBSDID("$FreeBSD$");
62 * Driver for the AMI MegaRaid family of controllers.
65 #include <sys/param.h>
66 #include <sys/systm.h>
67 #include <sys/malloc.h>
68 #include <sys/kernel.h>
70 #include <sys/sysctl.h>
77 #include <machine/bus.h>
78 #include <machine/cpu.h>
79 #include <machine/resource.h>
82 #include <dev/pci/pcireg.h>
83 #include <dev/pci/pcivar.h>
85 #include <dev/amr/amrio.h>
86 #include <dev/amr/amrreg.h>
87 #include <dev/amr/amrvar.h>
88 #define AMR_DEFINE_TABLES
89 #include <dev/amr/amr_tables.h>
91 SYSCTL_NODE(_hw, OID_AUTO, amr, CTLFLAG_RD, 0, "AMR driver parameters");
93 static d_open_t amr_open;
94 static d_close_t amr_close;
95 static d_ioctl_t amr_ioctl;
97 static struct cdevsw amr_cdevsw = {
98 .d_version = D_VERSION,
99 .d_flags = D_NEEDGIANT,
101 .d_close = amr_close,
102 .d_ioctl = amr_ioctl,
106 int linux_no_adapter = 0;
108 * Initialisation, bus interface.
110 static void amr_startup(void *arg);
115 static int amr_query_controller(struct amr_softc *sc);
116 static void *amr_enquiry(struct amr_softc *sc, size_t bufsize,
117 u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual, int *status);
118 static void amr_completeio(struct amr_command *ac);
119 static int amr_support_ext_cdb(struct amr_softc *sc);
122 * Command buffer allocation.
124 static void amr_alloccmd_cluster(struct amr_softc *sc);
125 static void amr_freecmd_cluster(struct amr_command_cluster *acc);
128 * Command processing.
130 static int amr_bio_command(struct amr_softc *sc, struct amr_command **acp);
131 static int amr_wait_command(struct amr_command *ac) __unused;
132 static int amr_mapcmd(struct amr_command *ac);
133 static void amr_unmapcmd(struct amr_command *ac);
134 static int amr_start(struct amr_command *ac);
135 static void amr_complete(void *context, ac_qhead_t *head);
136 static void amr_setup_sg(void *arg, bus_dma_segment_t *segs, int nsegments, int error);
137 static void amr_setup_data(void *arg, bus_dma_segment_t *segs, int nsegments, int error);
138 static void amr_setup_ccb(void *arg, bus_dma_segment_t *segs, int nsegments, int error);
139 static void amr_abort_load(struct amr_command *ac);
144 static void amr_periodic(void *data);
147 * Interface-specific shims
149 static int amr_quartz_submit_command(struct amr_command *ac);
150 static int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
151 static int amr_quartz_poll_command(struct amr_command *ac);
152 static int amr_quartz_poll_command1(struct amr_softc *sc, struct amr_command *ac);
154 static int amr_std_submit_command(struct amr_command *ac);
155 static int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
156 static int amr_std_poll_command(struct amr_command *ac);
157 static void amr_std_attach_mailbox(struct amr_softc *sc);
159 #ifdef AMR_BOARD_INIT
160 static int amr_quartz_init(struct amr_softc *sc);
161 static int amr_std_init(struct amr_softc *sc);
167 static void amr_describe_controller(struct amr_softc *sc);
170 static void amr_printcommand(struct amr_command *ac);
174 static void amr_init_sysctl(struct amr_softc *sc);
175 static int amr_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t addr,
176 int32_t flag, struct thread *td);
178 MALLOC_DEFINE(M_AMR, "amr", "AMR memory");
180 /********************************************************************************
181 ********************************************************************************
183 ********************************************************************************
184 ********************************************************************************/
186 /********************************************************************************
187 ********************************************************************************
189 ********************************************************************************
190 ********************************************************************************/
192 /********************************************************************************
193 * Initialise the controller and softc.
196 amr_attach(struct amr_softc *sc)
203 * Initialise per-controller queues.
205 amr_init_qhead(&sc->amr_freecmds);
206 amr_init_qhead(&sc->amr_ready);
207 TAILQ_INIT(&sc->amr_cmd_clusters);
208 bioq_init(&sc->amr_bioq);
210 debug(2, "queue init done");
213 * Configure for this controller type.
215 if (AMR_IS_QUARTZ(sc)) {
216 sc->amr_submit_command = amr_quartz_submit_command;
217 sc->amr_get_work = amr_quartz_get_work;
218 sc->amr_poll_command = amr_quartz_poll_command;
219 sc->amr_poll_command1 = amr_quartz_poll_command1;
221 sc->amr_submit_command = amr_std_submit_command;
222 sc->amr_get_work = amr_std_get_work;
223 sc->amr_poll_command = amr_std_poll_command;
224 amr_std_attach_mailbox(sc);
227 #ifdef AMR_BOARD_INIT
228 if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc)))
233 * Allocate initial commands.
235 amr_alloccmd_cluster(sc);
238 * Quiz controller for features and limits.
240 if (amr_query_controller(sc))
243 debug(2, "controller query complete");
246 * preallocate the remaining commands.
248 while (sc->amr_nextslot < sc->amr_maxio)
249 amr_alloccmd_cluster(sc);
257 * Attach our 'real' SCSI channels to CAM.
259 child = device_add_child(sc->amr_dev, "amrp", -1);
260 sc->amr_pass = child;
262 device_set_softc(child, sc);
263 device_set_desc(child, "SCSI Passthrough Bus");
264 bus_generic_attach(sc->amr_dev);
268 * Create the control device.
270 sc->amr_dev_t = make_dev(&amr_cdevsw, device_get_unit(sc->amr_dev), UID_ROOT, GID_OPERATOR,
271 S_IRUSR | S_IWUSR, "amr%d", device_get_unit(sc->amr_dev));
272 sc->amr_dev_t->si_drv1 = sc;
274 if (device_get_unit(sc->amr_dev) == 0)
275 make_dev_alias(sc->amr_dev_t, "megadev0");
278 * Schedule ourselves to bring the controller up once interrupts are
281 bzero(&sc->amr_ich, sizeof(struct intr_config_hook));
282 sc->amr_ich.ich_func = amr_startup;
283 sc->amr_ich.ich_arg = sc;
284 if (config_intrhook_establish(&sc->amr_ich) != 0) {
285 device_printf(sc->amr_dev, "can't establish configuration hook\n");
290 * Print a little information about the controller.
292 amr_describe_controller(sc);
294 debug(2, "attach complete");
298 /********************************************************************************
299 * Locate disk resources and attach children to them.
302 amr_startup(void *arg)
304 struct amr_softc *sc = (struct amr_softc *)arg;
305 struct amr_logdrive *dr;
310 /* pull ourselves off the intrhook chain */
311 if (sc->amr_ich.ich_func)
312 config_intrhook_disestablish(&sc->amr_ich);
313 sc->amr_ich.ich_func = NULL;
315 /* get up-to-date drive information */
316 if (amr_query_controller(sc)) {
317 device_printf(sc->amr_dev, "can't scan controller for drives\n");
321 /* iterate over available drives */
322 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
323 /* are we already attached to this drive? */
324 if (dr->al_disk == 0) {
325 /* generate geometry information */
326 if (dr->al_size > 0x200000) { /* extended translation? */
333 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
335 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
336 if (dr->al_disk == 0)
337 device_printf(sc->amr_dev, "device_add_child failed\n");
338 device_set_ivars(dr->al_disk, dr);
342 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
343 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
345 /* mark controller back up */
346 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
348 /* interrupts will be enabled before we do anything more */
349 sc->amr_state |= AMR_STATE_INTEN;
352 * Start the timeout routine.
354 /* sc->amr_timeout = timeout(amr_periodic, sc, hz);*/
360 amr_init_sysctl(struct amr_softc *sc)
363 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
364 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
365 OID_AUTO, "allow_volume_configure", CTLFLAG_RW, &sc->amr_allow_vol_config, 0,
367 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
368 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
369 OID_AUTO, "nextslot", CTLFLAG_RD, &sc->amr_nextslot, 0,
371 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
372 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
373 OID_AUTO, "busyslots", CTLFLAG_RD, &sc->amr_busyslots, 0,
375 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
376 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
377 OID_AUTO, "maxio", CTLFLAG_RD, &sc->amr_maxio, 0,
382 /*******************************************************************************
383 * Free resources associated with a controller instance
386 amr_free(struct amr_softc *sc)
388 struct amr_command_cluster *acc;
390 /* detach from CAM */
391 if (sc->amr_pass != NULL)
392 device_delete_child(sc->amr_dev, sc->amr_pass);
394 /* cancel status timeout */
395 untimeout(amr_periodic, sc, sc->amr_timeout);
397 /* throw away any command buffers */
398 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
399 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
400 amr_freecmd_cluster(acc);
403 /* destroy control device */
404 if( sc->amr_dev_t != (struct cdev *)NULL)
405 destroy_dev(sc->amr_dev_t);
407 if (mtx_initialized(&sc->amr_hw_lock))
408 mtx_destroy(&sc->amr_hw_lock);
410 if (mtx_initialized(&sc->amr_list_lock))
411 mtx_destroy(&sc->amr_list_lock);
414 /*******************************************************************************
415 * Receive a bio structure from a child device and queue it on a particular
416 * disk resource, then poke the disk resource to start as much work as it can.
419 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
423 mtx_lock(&sc->amr_list_lock);
424 amr_enqueue_bio(sc, bio);
426 mtx_unlock(&sc->amr_list_lock);
430 /********************************************************************************
431 * Accept an open operation on the control device.
434 amr_open(struct cdev *dev, int flags, int fmt, struct thread *td)
436 int unit = dev2unit(dev);
437 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
441 sc->amr_state |= AMR_STATE_OPEN;
447 amr_del_ld(struct amr_softc *sc, int drv_no, int status)
452 sc->amr_state &= ~AMR_STATE_QUEUE_FRZN;
453 sc->amr_state &= ~AMR_STATE_LD_DELETE;
454 sc->amr_state |= AMR_STATE_REMAP_LD;
455 debug(1, "State Set");
458 debug(1, "disk begin destroyed %d",drv_no);
459 if (--amr_disks_registered == 0)
460 cdevsw_remove(&amrddisk_cdevsw);
461 debug(1, "disk begin destroyed success");
467 amr_prepare_ld_delete(struct amr_softc *sc)
471 if (sc->ld_del_supported == 0)
474 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
475 sc->amr_state |= AMR_STATE_LD_DELETE;
477 /* 5 minutes for the all the commands to be flushed.*/
478 tsleep((void *)&sc->ld_del_supported, PCATCH | PRIBIO,"delete_logical_drv",hz * 60 * 1);
479 if ( sc->amr_busyslots )
486 /********************************************************************************
487 * Accept the last close on the control device.
490 amr_close(struct cdev *dev, int flags, int fmt, struct thread *td)
492 int unit = dev2unit(dev);
493 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
497 sc->amr_state &= ~AMR_STATE_OPEN;
501 /********************************************************************************
502 * Handle controller-specific control operations.
505 amr_rescan_drives(struct cdev *dev)
507 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
510 sc->amr_state |= AMR_STATE_REMAP_LD;
511 while (sc->amr_busyslots) {
512 device_printf(sc->amr_dev, "idle controller\n");
516 /* mark ourselves as in-shutdown */
517 sc->amr_state |= AMR_STATE_SHUTDOWN;
519 /* flush controller */
520 device_printf(sc->amr_dev, "flushing cache...");
521 printf("%s\n", amr_flush(sc) ? "failed" : "done");
523 /* delete all our child devices */
524 for(i = 0 ; i < AMR_MAXLD; i++) {
525 if(sc->amr_drive[i].al_disk != 0) {
526 if((error = device_delete_child(sc->amr_dev,
527 sc->amr_drive[i].al_disk)) != 0)
530 sc->amr_drive[i].al_disk = 0;
539 amr_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag,
542 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
543 struct amr_command *ac;
544 struct amr_mailbox *mb;
545 struct amr_linux_ioctl ali;
548 int adapter, len, ac_flags = 0;
549 int logical_drives_changed = 0;
550 u_int32_t linux_version = 0x02100000;
552 struct amr_passthrough *ap; /* 60 bytes */
559 if ((error = copyin(addr, &ali, sizeof(ali))) != 0)
561 switch (ali.ui.fcs.opcode) {
563 switch(ali.ui.fcs.subopcode) {
565 copyout(&linux_version, (void *)(uintptr_t)ali.data,
566 sizeof(linux_version));
571 copyout(&linux_no_adapter, (void *)(uintptr_t)ali.data,
572 sizeof(linux_no_adapter));
573 td->td_retval[0] = linux_no_adapter;
578 printf("Unknown subopcode\n");
586 if (ali.ui.fcs.opcode == 0x80)
587 len = max(ali.outlen, ali.inlen);
589 len = ali.ui.fcs.length;
591 adapter = (ali.ui.fcs.adapno) ^ 'm' << 8;
593 mb = (void *)&ali.mbox[0];
595 if ((ali.mbox[0] == FC_DEL_LOGDRV && ali.mbox[2] == OP_DEL_LOGDRV) || /* delete */
596 (ali.mbox[0] == AMR_CMD_CONFIG && ali.mbox[2] == 0x0d)) { /* create */
597 if (sc->amr_allow_vol_config == 0) {
601 logical_drives_changed = 1;
604 if (ali.mbox[0] == AMR_CMD_PASS) {
605 mtx_lock(&sc->amr_list_lock);
606 while ((ac = amr_alloccmd(sc)) == NULL)
607 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
608 mtx_unlock(&sc->amr_list_lock);
609 ap = &ac->ac_ccb->ccb_pthru;
611 error = copyin((void *)(uintptr_t)mb->mb_physaddr, ap,
612 sizeof(struct amr_passthrough));
616 if (ap->ap_data_transfer_length)
617 dp = malloc(ap->ap_data_transfer_length, M_AMR,
621 error = copyin((void *)(uintptr_t)ap->ap_data_transfer_address,
622 dp, ap->ap_data_transfer_length);
627 ac_flags = AMR_CMD_DATAIN|AMR_CMD_DATAOUT|AMR_CMD_CCB;
628 bzero(&ac->ac_mailbox, sizeof(ac->ac_mailbox));
629 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
630 ac->ac_flags = ac_flags;
633 ac->ac_length = ap->ap_data_transfer_length;
634 temp = (void *)(uintptr_t)ap->ap_data_transfer_address;
636 mtx_lock(&sc->amr_list_lock);
637 error = amr_wait_command(ac);
638 mtx_unlock(&sc->amr_list_lock);
642 status = ac->ac_status;
643 error = copyout(&status, &((struct amr_passthrough *)(uintptr_t)mb->mb_physaddr)->ap_scsi_status, sizeof(status));
648 error = copyout(dp, temp, ap->ap_data_transfer_length);
652 error = copyout(ap->ap_request_sense_area, ((struct amr_passthrough *)(uintptr_t)mb->mb_physaddr)->ap_request_sense_area, ap->ap_request_sense_length);
658 } else if (ali.mbox[0] == AMR_CMD_PASS_64) {
659 printf("No AMR_CMD_PASS_64\n");
662 } else if (ali.mbox[0] == AMR_CMD_EXTPASS) {
663 printf("No AMR_CMD_EXTPASS\n");
668 * Bug-for-bug compatibility with Linux!
669 * Some apps will send commands with inlen and outlen set to 0,
670 * even though they expect data to be transfered to them from the
671 * card. Linux accidentally allows this by allocating a 4KB
672 * buffer for the transfer anyways, but it then throws it away
673 * without copying it back to the app.
678 dp = malloc(len, M_AMR, M_WAITOK | M_ZERO);
681 error = copyin((void *)(uintptr_t)mb->mb_physaddr, dp, len);
686 mtx_lock(&sc->amr_list_lock);
687 while ((ac = amr_alloccmd(sc)) == NULL)
688 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
690 ac_flags = AMR_CMD_DATAIN|AMR_CMD_DATAOUT;
691 bzero(&ac->ac_mailbox, sizeof(ac->ac_mailbox));
692 bcopy(&ali.mbox[0], &ac->ac_mailbox, sizeof(ali.mbox));
696 ac->ac_flags = ac_flags;
698 error = amr_wait_command(ac);
699 mtx_unlock(&sc->amr_list_lock);
703 status = ac->ac_status;
704 error = copyout(&status, &((struct amr_mailbox *)&((struct amr_linux_ioctl *)addr)->mbox[0])->mb_status, sizeof(status));
706 error = copyout(dp, (void *)(uintptr_t)mb->mb_physaddr, len);
712 if (logical_drives_changed)
713 amr_rescan_drives(dev);
719 debug(1, "unknown linux ioctl 0x%lx", cmd);
720 printf("unknown linux ioctl 0x%lx\n", cmd);
726 * At this point, we know that there is a lock held and that these
727 * objects have been allocated.
729 mtx_lock(&sc->amr_list_lock);
732 mtx_unlock(&sc->amr_list_lock);
739 amr_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td)
741 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
744 struct amr_user_ioctl *au;
745 #ifdef AMR_IO_COMMAND32
746 struct amr_user_ioctl32 *au32;
750 struct amr_command *ac;
751 struct amr_mailbox_ioctl *mbi;
752 void *dp, *au_buffer;
753 unsigned long au_length;
754 unsigned char *au_cmd;
755 int *au_statusp, au_direction;
757 struct amr_passthrough *ap; /* 60 bytes */
758 int logical_drives_changed = 0;
762 arg._p = (void *)addr;
772 debug(1, "AMR_IO_VERSION");
773 *arg.result = AMR_IO_VERSION_NUMBER;
776 #ifdef AMR_IO_COMMAND32
778 * Accept ioctl-s from 32-bit binaries on non-32-bit
779 * platforms, such as AMD. LSI's MEGAMGR utility is
780 * the only example known today... -mi
782 case AMR_IO_COMMAND32:
783 debug(1, "AMR_IO_COMMAND32 0x%x", arg.au32->au_cmd[0]);
784 au_cmd = arg.au32->au_cmd;
785 au_buffer = (void *)(u_int64_t)arg.au32->au_buffer;
786 au_length = arg.au32->au_length;
787 au_direction = arg.au32->au_direction;
788 au_statusp = &arg.au32->au_status;
793 debug(1, "AMR_IO_COMMAND 0x%x", arg.au->au_cmd[0]);
794 au_cmd = arg.au->au_cmd;
795 au_buffer = (void *)arg.au->au_buffer;
796 au_length = arg.au->au_length;
797 au_direction = arg.au->au_direction;
798 au_statusp = &arg.au->au_status;
802 case 0xc06e6d00: /* Linux emulation */
805 struct amr_linux_ioctl ali;
808 devclass = devclass_find("amr");
809 if (devclass == NULL)
812 error = copyin(addr, &ali, sizeof(ali));
815 if (ali.ui.fcs.opcode == 0x82)
818 adapter = (ali.ui.fcs.adapno) ^ 'm' << 8;
820 sc = devclass_get_softc(devclass, adapter);
824 return (amr_linux_ioctl_int(sc->amr_dev_t, cmd, addr, 0, td));
827 debug(1, "unknown ioctl 0x%lx", cmd);
831 if ((au_cmd[0] == FC_DEL_LOGDRV && au_cmd[1] == OP_DEL_LOGDRV) || /* delete */
832 (au_cmd[0] == AMR_CMD_CONFIG && au_cmd[1] == 0x0d)) { /* create */
833 if (sc->amr_allow_vol_config == 0) {
837 logical_drives_changed = 1;
839 if ((error = amr_prepare_ld_delete(sc)) != 0)
844 /* handle inbound data buffer */
845 if (au_length != 0 && au_cmd[0] != 0x06) {
846 if ((dp = malloc(au_length, M_AMR, M_WAITOK|M_ZERO)) == NULL) {
850 if ((error = copyin(au_buffer, dp, au_length)) != 0) {
854 debug(2, "copyin %ld bytes from %p -> %p", au_length, au_buffer, dp);
857 /* Allocate this now before the mutex gets held */
859 mtx_lock(&sc->amr_list_lock);
860 while ((ac = amr_alloccmd(sc)) == NULL)
861 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
863 /* handle SCSI passthrough command */
864 if (au_cmd[0] == AMR_CMD_PASS) {
867 ap = &ac->ac_ccb->ccb_pthru;
868 bzero(ap, sizeof(struct amr_passthrough));
872 ap->ap_cdb_length = len;
873 bcopy(au_cmd + 3, ap->ap_cdb, len);
875 /* build passthrough */
876 ap->ap_timeout = au_cmd[len + 3] & 0x07;
877 ap->ap_ars = (au_cmd[len + 3] & 0x08) ? 1 : 0;
878 ap->ap_islogical = (au_cmd[len + 3] & 0x80) ? 1 : 0;
879 ap->ap_logical_drive_no = au_cmd[len + 4];
880 ap->ap_channel = au_cmd[len + 5];
881 ap->ap_scsi_id = au_cmd[len + 6];
882 ap->ap_request_sense_length = 14;
883 ap->ap_data_transfer_length = au_length;
884 /* XXX what about the request-sense area? does the caller want it? */
887 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
888 ac->ac_flags = AMR_CMD_CCB;
891 /* direct command to controller */
892 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
894 /* copy pertinent mailbox items */
895 mbi->mb_command = au_cmd[0];
896 mbi->mb_channel = au_cmd[1];
897 mbi->mb_param = au_cmd[2];
898 mbi->mb_pad[0] = au_cmd[3];
899 mbi->mb_drive = au_cmd[4];
903 /* build the command */
905 ac->ac_length = au_length;
906 ac->ac_flags |= AMR_CMD_DATAIN|AMR_CMD_DATAOUT;
908 /* run the command */
909 error = amr_wait_command(ac);
910 mtx_unlock(&sc->amr_list_lock);
914 /* copy out data and set status */
915 if (au_length != 0) {
916 error = copyout(dp, au_buffer, au_length);
918 debug(2, "copyout %ld bytes from %p -> %p", au_length, dp, au_buffer);
920 debug(2, "%p status 0x%x", dp, ac->ac_status);
921 *au_statusp = ac->ac_status;
925 * At this point, we know that there is a lock held and that these
926 * objects have been allocated.
928 mtx_lock(&sc->amr_list_lock);
931 mtx_unlock(&sc->amr_list_lock);
936 if (logical_drives_changed)
937 amr_rescan_drives(dev);
943 /********************************************************************************
944 ********************************************************************************
946 ********************************************************************************
947 ********************************************************************************/
949 /********************************************************************************
950 * Perform a periodic check of the controller status
953 amr_periodic(void *data)
955 struct amr_softc *sc = (struct amr_softc *)data;
959 /* XXX perform periodic status checks here */
961 /* compensate for missed interrupts */
965 sc->amr_timeout = timeout(amr_periodic, sc, hz);
968 /********************************************************************************
969 ********************************************************************************
971 ********************************************************************************
972 ********************************************************************************/
974 /********************************************************************************
975 * Interrogate the controller for the operational parameters we require.
978 amr_query_controller(struct amr_softc *sc)
980 struct amr_enquiry3 *aex;
981 struct amr_prodinfo *ap;
982 struct amr_enquiry *ae;
987 * Greater than 10 byte cdb support
989 sc->support_ext_cdb = amr_support_ext_cdb(sc);
991 if(sc->support_ext_cdb) {
992 debug(2,"supports extended CDBs.");
996 * Try to issue an ENQUIRY3 command
998 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
999 AMR_CONFIG_ENQ3_SOLICITED_FULL, &status)) != NULL) {
1002 * Fetch current state of logical drives.
1004 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
1005 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
1006 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
1007 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
1008 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
1009 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
1014 * Get product info for channel count.
1016 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0, &status)) == NULL) {
1017 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
1020 sc->amr_maxdrives = 40;
1021 sc->amr_maxchan = ap->ap_nschan;
1022 sc->amr_maxio = ap->ap_maxio;
1023 sc->amr_type |= AMR_TYPE_40LD;
1026 ap = amr_enquiry(sc, 0, FC_DEL_LOGDRV, OP_SUP_DEL_LOGDRV, 0, &status);
1030 sc->amr_ld_del_supported = 1;
1031 device_printf(sc->amr_dev, "delete logical drives supported by controller\n");
1035 /* failed, try the 8LD ENQUIRY commands */
1036 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0, &status)) == NULL) {
1037 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0, &status)) == NULL) {
1038 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
1041 ae->ae_signature = 0;
1045 * Fetch current state of logical drives.
1047 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
1048 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
1049 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
1050 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
1051 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
1052 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
1055 sc->amr_maxdrives = 8;
1056 sc->amr_maxchan = ae->ae_adapter.aa_channels;
1057 sc->amr_maxio = ae->ae_adapter.aa_maxio;
1062 * Mark remaining drives as unused.
1064 for (; ldrv < AMR_MAXLD; ldrv++)
1065 sc->amr_drive[ldrv].al_size = 0xffffffff;
1068 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
1069 * the controller's reported value, and lockups have been seen when we do.
1071 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
1076 /********************************************************************************
1077 * Run a generic enquiry-style command.
1080 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual, int *status)
1082 struct amr_command *ac;
1092 /* get ourselves a command buffer */
1093 mtx_lock(&sc->amr_list_lock);
1094 ac = amr_alloccmd(sc);
1095 mtx_unlock(&sc->amr_list_lock);
1098 /* allocate the response structure */
1099 if ((result = malloc(bufsize, M_AMR, M_ZERO|M_NOWAIT)) == NULL)
1101 /* set command flags */
1103 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAIN;
1105 /* point the command at our data */
1106 ac->ac_data = result;
1107 ac->ac_length = bufsize;
1109 /* build the command proper */
1110 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
1116 /* can't assume that interrupts are going to work here, so play it safe */
1117 if (sc->amr_poll_command(ac))
1119 error = ac->ac_status;
1120 *status = ac->ac_status;
1123 mtx_lock(&sc->amr_list_lock);
1126 mtx_unlock(&sc->amr_list_lock);
1127 if ((error != 0) && (result != NULL)) {
1128 free(result, M_AMR);
1134 /********************************************************************************
1135 * Flush the controller's internal cache, return status.
1138 amr_flush(struct amr_softc *sc)
1140 struct amr_command *ac;
1143 /* get ourselves a command buffer */
1145 mtx_lock(&sc->amr_list_lock);
1146 ac = amr_alloccmd(sc);
1147 mtx_unlock(&sc->amr_list_lock);
1150 /* set command flags */
1151 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1153 /* build the command proper */
1154 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
1156 /* we have to poll, as the system may be going down or otherwise damaged */
1157 if (sc->amr_poll_command(ac))
1159 error = ac->ac_status;
1162 mtx_lock(&sc->amr_list_lock);
1165 mtx_unlock(&sc->amr_list_lock);
1169 /********************************************************************************
1170 * Detect extented cdb >> greater than 10 byte cdb support
1171 * returns '1' means this support exist
1172 * returns '0' means this support doesn't exist
1175 amr_support_ext_cdb(struct amr_softc *sc)
1177 struct amr_command *ac;
1181 /* get ourselves a command buffer */
1183 mtx_lock(&sc->amr_list_lock);
1184 ac = amr_alloccmd(sc);
1185 mtx_unlock(&sc->amr_list_lock);
1188 /* set command flags */
1189 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1191 /* build the command proper */
1192 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
1197 /* we have to poll, as the system may be going down or otherwise damaged */
1198 if (sc->amr_poll_command(ac))
1200 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
1205 mtx_lock(&sc->amr_list_lock);
1208 mtx_unlock(&sc->amr_list_lock);
1212 /********************************************************************************
1213 * Try to find I/O work for the controller from one or more of the work queues.
1215 * We make the assumption that if the controller is not ready to take a command
1216 * at some given time, it will generate an interrupt at some later time when
1220 amr_startio(struct amr_softc *sc)
1222 struct amr_command *ac;
1224 /* spin until something prevents us from doing any work */
1227 /* Don't bother to queue commands no bounce buffers are available. */
1228 if (sc->amr_state & AMR_STATE_QUEUE_FRZN)
1231 /* try to get a ready command */
1232 ac = amr_dequeue_ready(sc);
1234 /* if that failed, build a command from a bio */
1236 (void)amr_bio_command(sc, &ac);
1238 /* if that failed, build a command from a ccb */
1239 if ((ac == NULL) && (sc->amr_cam_command != NULL))
1240 sc->amr_cam_command(sc, &ac);
1242 /* if we don't have anything to do, give up */
1246 /* try to give the command to the controller; if this fails save it for later and give up */
1247 if (amr_start(ac)) {
1248 debug(2, "controller busy, command deferred");
1249 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
1255 /********************************************************************************
1256 * Handle completion of an I/O command.
1259 amr_completeio(struct amr_command *ac)
1261 struct amrd_softc *sc = ac->ac_bio->bio_disk->d_drv1;
1262 static struct timeval lastfail;
1265 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
1266 ac->ac_bio->bio_error = EIO;
1267 ac->ac_bio->bio_flags |= BIO_ERROR;
1269 if (ppsratecheck(&lastfail, &curfail, 1))
1270 device_printf(sc->amrd_dev, "I/O error - 0x%x\n", ac->ac_status);
1271 /* amr_printcommand(ac);*/
1273 amrd_intr(ac->ac_bio);
1274 mtx_lock(&ac->ac_sc->amr_list_lock);
1276 mtx_unlock(&ac->ac_sc->amr_list_lock);
1279 /********************************************************************************
1280 ********************************************************************************
1282 ********************************************************************************
1283 ********************************************************************************/
1285 /********************************************************************************
1286 * Convert a bio off the top of the bio queue into a command.
1289 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
1291 struct amr_command *ac;
1292 struct amrd_softc *amrd;
1303 if ((ac = amr_alloccmd(sc)) == NULL)
1306 /* get a bio to work on */
1307 if ((bio = amr_dequeue_bio(sc)) == NULL) {
1312 /* connect the bio to the command */
1313 ac->ac_complete = amr_completeio;
1315 ac->ac_data = bio->bio_data;
1316 ac->ac_length = bio->bio_bcount;
1318 switch (bio->bio_cmd) {
1320 ac->ac_flags |= AMR_CMD_DATAIN;
1321 if (AMR_IS_SG64(sc)) {
1322 cmd = AMR_CMD_LREAD64;
1323 ac->ac_flags |= AMR_CMD_SG64;
1325 cmd = AMR_CMD_LREAD;
1328 ac->ac_flags |= AMR_CMD_DATAOUT;
1329 if (AMR_IS_SG64(sc)) {
1330 cmd = AMR_CMD_LWRITE64;
1331 ac->ac_flags |= AMR_CMD_SG64;
1333 cmd = AMR_CMD_LWRITE;
1336 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1337 cmd = AMR_CMD_FLUSH;
1340 amrd = (struct amrd_softc *)bio->bio_disk->d_drv1;
1341 driveno = amrd->amrd_drive - sc->amr_drive;
1342 blkcount = (bio->bio_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
1344 ac->ac_mailbox.mb_command = cmd;
1345 if (bio->bio_cmd & (BIO_READ|BIO_WRITE)) {
1346 ac->ac_mailbox.mb_blkcount = blkcount;
1347 ac->ac_mailbox.mb_lba = bio->bio_pblkno;
1348 if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size) {
1349 device_printf(sc->amr_dev,
1350 "I/O beyond end of unit (%lld,%d > %lu)\n",
1351 (long long)bio->bio_pblkno, blkcount,
1352 (u_long)sc->amr_drive[driveno].al_size);
1355 ac->ac_mailbox.mb_drive = driveno;
1356 if (sc->amr_state & AMR_STATE_REMAP_LD)
1357 ac->ac_mailbox.mb_drive |= 0x80;
1359 /* we fill in the s/g related data when the command is mapped */
1366 /********************************************************************************
1367 * Take a command, submit it to the controller and sleep until it completes
1368 * or fails. Interrupts must be enabled, returns nonzero on error.
1371 amr_wait_command(struct amr_command *ac)
1374 struct amr_softc *sc = ac->ac_sc;
1378 ac->ac_complete = NULL;
1379 ac->ac_flags |= AMR_CMD_SLEEP;
1380 if ((error = amr_start(ac)) != 0) {
1384 while ((ac->ac_flags & AMR_CMD_BUSY) && (error != EWOULDBLOCK)) {
1385 error = msleep(ac,&sc->amr_list_lock, PRIBIO, "amrwcmd", 0);
1391 /********************************************************************************
1392 * Take a command, submit it to the controller and busy-wait for it to return.
1393 * Returns nonzero on error. Can be safely called with interrupts enabled.
1396 amr_std_poll_command(struct amr_command *ac)
1398 struct amr_softc *sc = ac->ac_sc;
1403 ac->ac_complete = NULL;
1404 if ((error = amr_start(ac)) != 0)
1410 * Poll for completion, although the interrupt handler may beat us to it.
1411 * Note that the timeout here is somewhat arbitrary.
1415 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
1416 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
1419 /* XXX the slot is now marked permanently busy */
1421 device_printf(sc->amr_dev, "polled command timeout\n");
1427 amr_setup_polled_dmamap(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1429 struct amr_command *ac = arg;
1430 struct amr_softc *sc = ac->ac_sc;
1434 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1435 ac->ac_status = AMR_STATUS_ABORTED;
1439 amr_setup_sg(arg, segs, nsegs, err);
1441 /* for AMR_CMD_CONFIG Read/Write the s/g count goes elsewhere */
1442 mb_channel = ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_channel;
1443 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG &&
1444 ((mb_channel == AMR_CONFIG_READ_NVRAM_CONFIG) ||
1445 (mb_channel == AMR_CONFIG_WRITE_NVRAM_CONFIG)))
1446 ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param = ac->ac_nsegments;
1448 ac->ac_mailbox.mb_nsgelem = ac->ac_nsegments;
1449 ac->ac_mailbox.mb_physaddr = ac->ac_mb_physaddr;
1450 if (AC_IS_SG64(ac)) {
1452 ac->ac_sg64_lo = ac->ac_sgbusaddr;
1455 sc->amr_poll_command1(sc, ac);
1458 /********************************************************************************
1459 * Take a command, submit it to the controller and busy-wait for it to return.
1460 * Returns nonzero on error. Can be safely called with interrupts enabled.
1463 amr_quartz_poll_command(struct amr_command *ac)
1465 struct amr_softc *sc = ac->ac_sc;
1472 if (AC_IS_SG64(ac)) {
1473 ac->ac_tag = sc->amr_buffer64_dmat;
1474 ac->ac_datamap = ac->ac_dma64map;
1476 ac->ac_tag = sc->amr_buffer_dmat;
1477 ac->ac_datamap = ac->ac_dmamap;
1480 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1481 if (ac->ac_data != 0) {
1482 if (bus_dmamap_load(ac->ac_tag, ac->ac_datamap, ac->ac_data,
1483 ac->ac_length, amr_setup_polled_dmamap, ac, BUS_DMA_NOWAIT) != 0) {
1487 error = amr_quartz_poll_command1(sc, ac);
1494 amr_quartz_poll_command1(struct amr_softc *sc, struct amr_command *ac)
1498 mtx_lock(&sc->amr_hw_lock);
1499 if ((sc->amr_state & AMR_STATE_INTEN) == 0) {
1501 while (sc->amr_busyslots) {
1502 msleep(sc, &sc->amr_hw_lock, PRIBIO | PCATCH, "amrpoll", hz);
1508 if(sc->amr_busyslots) {
1509 device_printf(sc->amr_dev, "adapter is busy\n");
1510 mtx_unlock(&sc->amr_hw_lock);
1511 if (ac->ac_data != NULL) {
1512 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1519 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1521 /* clear the poll/ack fields in the mailbox */
1522 sc->amr_mailbox->mb_ident = 0xFE;
1523 sc->amr_mailbox->mb_nstatus = 0xFF;
1524 sc->amr_mailbox->mb_status = 0xFF;
1525 sc->amr_mailbox->mb_poll = 0;
1526 sc->amr_mailbox->mb_ack = 0;
1527 sc->amr_mailbox->mb_busy = 1;
1529 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1531 while(sc->amr_mailbox->mb_nstatus == 0xFF)
1533 while(sc->amr_mailbox->mb_status == 0xFF)
1535 ac->ac_status=sc->amr_mailbox->mb_status;
1536 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1537 while(sc->amr_mailbox->mb_poll != 0x77)
1539 sc->amr_mailbox->mb_poll = 0;
1540 sc->amr_mailbox->mb_ack = 0x77;
1542 /* acknowledge that we have the commands */
1543 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1544 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1546 mtx_unlock(&sc->amr_hw_lock);
1548 /* unmap the command's data buffer */
1549 if (ac->ac_flags & AMR_CMD_DATAIN) {
1550 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, BUS_DMASYNC_POSTREAD);
1552 if (ac->ac_flags & AMR_CMD_DATAOUT) {
1553 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, BUS_DMASYNC_POSTWRITE);
1555 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1561 amr_freeslot(struct amr_command *ac)
1563 struct amr_softc *sc = ac->ac_sc;
1569 if (sc->amr_busycmd[slot] == NULL)
1570 panic("amr: slot %d not busy?\n", slot);
1572 sc->amr_busycmd[slot] = NULL;
1573 atomic_subtract_int(&sc->amr_busyslots, 1);
1578 /********************************************************************************
1579 * Map/unmap (ac)'s data in the controller's addressable space as required.
1581 * These functions may be safely called multiple times on a given command.
1584 amr_setup_sg(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1586 struct amr_command *ac = (struct amr_command *)arg;
1587 struct amr_sgentry *sg;
1588 struct amr_sg64entry *sg64;
1593 /* get base address of s/g table */
1594 sg = ac->ac_sg.sg32;
1595 sg64 = ac->ac_sg.sg64;
1597 if (AC_IS_SG64(ac)) {
1598 ac->ac_nsegments = nsegments;
1599 ac->ac_mb_physaddr = 0xffffffff;
1600 for (i = 0; i < nsegments; i++, sg64++) {
1601 sg64->sg_addr = segs[i].ds_addr;
1602 sg64->sg_count = segs[i].ds_len;
1605 /* decide whether we need to populate the s/g table */
1606 if (nsegments < 2) {
1607 ac->ac_nsegments = 0;
1608 ac->ac_mb_physaddr = segs[0].ds_addr;
1610 ac->ac_nsegments = nsegments;
1611 ac->ac_mb_physaddr = ac->ac_sgbusaddr;
1612 for (i = 0; i < nsegments; i++, sg++) {
1613 sg->sg_addr = segs[i].ds_addr;
1614 sg->sg_count = segs[i].ds_len;
1620 if (ac->ac_flags & AMR_CMD_DATAIN)
1621 flags |= BUS_DMASYNC_PREREAD;
1622 if (ac->ac_flags & AMR_CMD_DATAOUT)
1623 flags |= BUS_DMASYNC_PREWRITE;
1624 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, flags);
1625 ac->ac_flags |= AMR_CMD_MAPPED;
1629 amr_setup_data(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1631 struct amr_command *ac = arg;
1632 struct amr_softc *sc = ac->ac_sc;
1636 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1641 amr_setup_sg(arg, segs, nsegs, err);
1643 /* for AMR_CMD_CONFIG Read/Write the s/g count goes elsewhere */
1644 mb_channel = ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_channel;
1645 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG &&
1646 ((mb_channel == AMR_CONFIG_READ_NVRAM_CONFIG) ||
1647 (mb_channel == AMR_CONFIG_WRITE_NVRAM_CONFIG)))
1648 ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param = ac->ac_nsegments;
1650 ac->ac_mailbox.mb_nsgelem = ac->ac_nsegments;
1651 ac->ac_mailbox.mb_physaddr = ac->ac_mb_physaddr;
1652 if (AC_IS_SG64(ac)) {
1654 ac->ac_sg64_lo = ac->ac_sgbusaddr;
1657 if (sc->amr_submit_command(ac) == EBUSY) {
1659 amr_requeue_ready(ac);
1664 amr_setup_ccb(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1666 struct amr_command *ac = arg;
1667 struct amr_softc *sc = ac->ac_sc;
1668 struct amr_passthrough *ap = &ac->ac_ccb->ccb_pthru;
1669 struct amr_ext_passthrough *aep = &ac->ac_ccb->ccb_epthru;
1672 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1677 /* Set up the mailbox portion of the command to point at the ccb */
1678 ac->ac_mailbox.mb_nsgelem = 0;
1679 ac->ac_mailbox.mb_physaddr = ac->ac_ccb_busaddr;
1681 amr_setup_sg(arg, segs, nsegs, err);
1683 switch (ac->ac_mailbox.mb_command) {
1684 case AMR_CMD_EXTPASS:
1685 aep->ap_no_sg_elements = ac->ac_nsegments;
1686 aep->ap_data_transfer_address = ac->ac_mb_physaddr;
1689 ap->ap_no_sg_elements = ac->ac_nsegments;
1690 ap->ap_data_transfer_address = ac->ac_mb_physaddr;
1693 panic("Unknown ccb command");
1696 if (sc->amr_submit_command(ac) == EBUSY) {
1698 amr_requeue_ready(ac);
1703 amr_mapcmd(struct amr_command *ac)
1705 bus_dmamap_callback_t *cb;
1706 struct amr_softc *sc = ac->ac_sc;
1710 if (AC_IS_SG64(ac)) {
1711 ac->ac_tag = sc->amr_buffer64_dmat;
1712 ac->ac_datamap = ac->ac_dma64map;
1714 ac->ac_tag = sc->amr_buffer_dmat;
1715 ac->ac_datamap = ac->ac_dmamap;
1718 if (ac->ac_flags & AMR_CMD_CCB)
1721 cb = amr_setup_data;
1723 /* if the command involves data at all, and hasn't been mapped */
1724 if ((ac->ac_flags & AMR_CMD_MAPPED) == 0 && (ac->ac_data != NULL)) {
1725 /* map the data buffers into bus space and build the s/g list */
1726 if (bus_dmamap_load(ac->ac_tag, ac->ac_datamap, ac->ac_data,
1727 ac->ac_length, cb, ac, 0) == EINPROGRESS) {
1728 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
1731 if (sc->amr_submit_command(ac) == EBUSY) {
1733 amr_requeue_ready(ac);
1741 amr_unmapcmd(struct amr_command *ac)
1747 /* if the command involved data at all and was mapped */
1748 if (ac->ac_flags & AMR_CMD_MAPPED) {
1750 if (ac->ac_data != NULL) {
1753 if (ac->ac_flags & AMR_CMD_DATAIN)
1754 flag |= BUS_DMASYNC_POSTREAD;
1755 if (ac->ac_flags & AMR_CMD_DATAOUT)
1756 flag |= BUS_DMASYNC_POSTWRITE;
1758 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, flag);
1759 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1762 ac->ac_flags &= ~AMR_CMD_MAPPED;
1767 amr_abort_load(struct amr_command *ac)
1770 struct amr_softc *sc = ac->ac_sc;
1772 mtx_assert(&sc->amr_list_lock, MA_OWNED);
1774 ac->ac_status = AMR_STATUS_ABORTED;
1775 amr_init_qhead(&head);
1776 amr_enqueue_completed(ac, &head);
1778 mtx_unlock(&sc->amr_list_lock);
1779 amr_complete(sc, &head);
1780 mtx_lock(&sc->amr_list_lock);
1783 /********************************************************************************
1784 * Take a command and give it to the controller, returns 0 if successful, or
1785 * EBUSY if the command should be retried later.
1788 amr_start(struct amr_command *ac)
1790 struct amr_softc *sc;
1796 /* mark command as busy so that polling consumer can tell */
1798 ac->ac_flags |= AMR_CMD_BUSY;
1800 /* get a command slot (freed in amr_done) */
1802 if (sc->amr_busycmd[slot] != NULL)
1803 panic("amr: slot %d busy?\n", slot);
1804 sc->amr_busycmd[slot] = ac;
1805 atomic_add_int(&sc->amr_busyslots, 1);
1807 /* Now we have a slot, we can map the command (unmapped in amr_complete). */
1808 if ((error = amr_mapcmd(ac)) == ENOMEM) {
1810 * Memroy resources are short, so free the slot and let this be tried
1819 /********************************************************************************
1820 * Extract one or more completed commands from the controller (sc)
1822 * Returns nonzero if any commands on the work queue were marked as completed.
1826 amr_done(struct amr_softc *sc)
1829 struct amr_command *ac;
1830 struct amr_mailbox mbox;
1835 /* See if there's anything for us to do */
1837 amr_init_qhead(&head);
1839 /* loop collecting completed commands */
1841 /* poll for a completed command's identifier and status */
1842 if (sc->amr_get_work(sc, &mbox)) {
1845 /* iterate over completed commands in this result */
1846 for (i = 0; i < mbox.mb_nstatus; i++) {
1847 /* get pointer to busy command */
1848 idx = mbox.mb_completed[i] - 1;
1849 ac = sc->amr_busycmd[idx];
1851 /* really a busy command? */
1854 /* pull the command from the busy index */
1857 /* save status for later use */
1858 ac->ac_status = mbox.mb_status;
1859 amr_enqueue_completed(ac, &head);
1860 debug(3, "completed command with status %x", mbox.mb_status);
1862 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1866 break; /* no work */
1869 /* handle completion and timeouts */
1870 amr_complete(sc, &head);
1875 /********************************************************************************
1876 * Do completion processing on done commands on (sc)
1880 amr_complete(void *context, ac_qhead_t *head)
1882 struct amr_softc *sc = (struct amr_softc *)context;
1883 struct amr_command *ac;
1887 /* pull completed commands off the queue */
1889 ac = amr_dequeue_completed(sc, head);
1893 /* unmap the command's data buffer */
1897 * Is there a completion handler?
1899 if (ac->ac_complete != NULL) {
1900 /* unbusy the command */
1901 ac->ac_flags &= ~AMR_CMD_BUSY;
1902 ac->ac_complete(ac);
1905 * Is someone sleeping on this one?
1908 mtx_lock(&sc->amr_list_lock);
1909 ac->ac_flags &= ~AMR_CMD_BUSY;
1910 if (ac->ac_flags & AMR_CMD_SLEEP) {
1911 /* unbusy the command */
1914 mtx_unlock(&sc->amr_list_lock);
1917 if(!sc->amr_busyslots) {
1922 mtx_lock(&sc->amr_list_lock);
1923 sc->amr_state &= ~AMR_STATE_QUEUE_FRZN;
1925 mtx_unlock(&sc->amr_list_lock);
1928 /********************************************************************************
1929 ********************************************************************************
1930 Command Buffer Management
1931 ********************************************************************************
1932 ********************************************************************************/
1934 /********************************************************************************
1935 * Get a new command buffer.
1937 * This may return NULL in low-memory cases.
1939 * If possible, we recycle a command buffer that's been used before.
1941 struct amr_command *
1942 amr_alloccmd(struct amr_softc *sc)
1944 struct amr_command *ac;
1948 ac = amr_dequeue_free(sc);
1950 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
1954 /* clear out significant fields */
1956 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1960 ac->ac_complete = NULL;
1963 ac->ac_datamap = NULL;
1967 /********************************************************************************
1968 * Release a command buffer for recycling.
1971 amr_releasecmd(struct amr_command *ac)
1975 amr_enqueue_free(ac);
1978 /********************************************************************************
1979 * Allocate a new command cluster and initialise it.
1982 amr_alloccmd_cluster(struct amr_softc *sc)
1984 struct amr_command_cluster *acc;
1985 struct amr_command *ac;
1989 * If we haven't found the real limit yet, let us have a couple of
1990 * commands in order to be able to probe.
1992 if (sc->amr_maxio == 0)
1995 if (sc->amr_nextslot > sc->amr_maxio)
1997 acc = malloc(AMR_CMD_CLUSTERSIZE, M_AMR, M_NOWAIT | M_ZERO);
1999 nextslot = sc->amr_nextslot;
2000 mtx_lock(&sc->amr_list_lock);
2001 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
2002 mtx_unlock(&sc->amr_list_lock);
2003 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
2004 ac = &acc->acc_command[i];
2006 ac->ac_slot = nextslot;
2009 * The SG table for each slot is a fixed size and is assumed to
2010 * to hold 64-bit s/g objects when the driver is configured to do
2011 * 64-bit DMA. 32-bit DMA commands still use the same table, but
2012 * cast down to 32-bit objects.
2014 if (AMR_IS_SG64(sc)) {
2015 ac->ac_sgbusaddr = sc->amr_sgbusaddr +
2016 (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sg64entry));
2017 ac->ac_sg.sg64 = sc->amr_sg64table + (ac->ac_slot * AMR_NSEG);
2019 ac->ac_sgbusaddr = sc->amr_sgbusaddr +
2020 (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
2021 ac->ac_sg.sg32 = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
2024 ac->ac_ccb = sc->amr_ccb + ac->ac_slot;
2025 ac->ac_ccb_busaddr = sc->amr_ccb_busaddr +
2026 (ac->ac_slot * sizeof(union amr_ccb));
2028 if (bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap))
2030 if (AMR_IS_SG64(sc) &&
2031 (bus_dmamap_create(sc->amr_buffer64_dmat, 0,&ac->ac_dma64map)))
2034 if (++nextslot > sc->amr_maxio)
2037 sc->amr_nextslot = nextslot;
2041 /********************************************************************************
2042 * Free a command cluster
2045 amr_freecmd_cluster(struct amr_command_cluster *acc)
2047 struct amr_softc *sc = acc->acc_command[0].ac_sc;
2050 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
2051 if (acc->acc_command[i].ac_sc == NULL)
2053 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
2054 if (AMR_IS_SG64(sc))
2055 bus_dmamap_destroy(sc->amr_buffer64_dmat, acc->acc_command[i].ac_dma64map);
2060 /********************************************************************************
2061 ********************************************************************************
2062 Interface-specific Shims
2063 ********************************************************************************
2064 ********************************************************************************/
2066 /********************************************************************************
2067 * Tell the controller that the mailbox contains a valid command
2070 amr_quartz_submit_command(struct amr_command *ac)
2072 struct amr_softc *sc = ac->ac_sc;
2073 static struct timeval lastfail;
2077 mtx_lock(&sc->amr_hw_lock);
2078 while (sc->amr_mailbox->mb_busy && (i++ < 10)) {
2080 /* This is a no-op read that flushes pending mailbox updates */
2083 if (sc->amr_mailbox->mb_busy) {
2084 mtx_unlock(&sc->amr_hw_lock);
2085 if (ac->ac_retries++ > 1000) {
2086 if (ppsratecheck(&lastfail, &curfail, 1))
2087 device_printf(sc->amr_dev, "Too many retries on command %p. "
2088 "Controller is likely dead\n", ac);
2095 * Save the slot number so that we can locate this command when complete.
2096 * Note that ident = 0 seems to be special, so we don't use it.
2098 ac->ac_mailbox.mb_ident = ac->ac_slot + 1; /* will be coppied into mbox */
2099 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, 14);
2100 sc->amr_mailbox->mb_busy = 1;
2101 sc->amr_mailbox->mb_poll = 0;
2102 sc->amr_mailbox->mb_ack = 0;
2103 sc->amr_mailbox64->sg64_hi = ac->ac_sg64_hi;
2104 sc->amr_mailbox64->sg64_lo = ac->ac_sg64_lo;
2106 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
2107 mtx_unlock(&sc->amr_hw_lock);
2112 amr_std_submit_command(struct amr_command *ac)
2114 struct amr_softc *sc = ac->ac_sc;
2115 static struct timeval lastfail;
2118 mtx_lock(&sc->amr_hw_lock);
2119 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG) {
2120 mtx_unlock(&sc->amr_hw_lock);
2121 if (ac->ac_retries++ > 1000) {
2122 if (ppsratecheck(&lastfail, &curfail, 1))
2123 device_printf(sc->amr_dev, "Too many retries on command %p. "
2124 "Controller is likely dead\n", ac);
2131 * Save the slot number so that we can locate this command when complete.
2132 * Note that ident = 0 seems to be special, so we don't use it.
2134 ac->ac_mailbox.mb_ident = ac->ac_slot + 1; /* will be coppied into mbox */
2135 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, 14);
2136 sc->amr_mailbox->mb_busy = 1;
2137 sc->amr_mailbox->mb_poll = 0;
2138 sc->amr_mailbox->mb_ack = 0;
2140 AMR_SPOST_COMMAND(sc);
2141 mtx_unlock(&sc->amr_hw_lock);
2145 /********************************************************************************
2146 * Claim any work that the controller has completed; acknowledge completion,
2147 * save details of the completion in (mbsave)
2150 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
2155 u_int8_t completed[46];
2161 /* work waiting for us? */
2162 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
2164 /* acknowledge interrupt */
2165 AMR_QPUT_ODB(sc, AMR_QODB_READY);
2167 while ((nstatus = sc->amr_mailbox->mb_nstatus) == 0xff)
2169 sc->amr_mailbox->mb_nstatus = 0xff;
2171 /* wait until fw wrote out all completions */
2172 for (i = 0; i < nstatus; i++) {
2173 while ((completed[i] = sc->amr_mailbox->mb_completed[i]) == 0xff)
2175 sc->amr_mailbox->mb_completed[i] = 0xff;
2178 /* Save information for later processing */
2179 mbsave->mb_nstatus = nstatus;
2180 mbsave->mb_status = sc->amr_mailbox->mb_status;
2181 sc->amr_mailbox->mb_status = 0xff;
2183 for (i = 0; i < nstatus; i++)
2184 mbsave->mb_completed[i] = completed[i];
2186 /* acknowledge that we have the commands */
2187 AMR_QPUT_IDB(sc, AMR_QIDB_ACK);
2190 #ifndef AMR_QUARTZ_GOFASTER
2192 * This waits for the controller to notice that we've taken the
2193 * command from it. It's very inefficient, and we shouldn't do it,
2194 * but if we remove this code, we stop completing commands under
2197 * Peter J says we shouldn't do this. The documentation says we
2198 * should. Who is right?
2200 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
2201 ; /* XXX aiee! what if it dies? */
2205 worked = 1; /* got some work */
2212 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
2221 /* check for valid interrupt status */
2222 istat = AMR_SGET_ISTAT(sc);
2223 if ((istat & AMR_SINTR_VALID) != 0) {
2224 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
2226 /* save mailbox, which contains a list of completed commands */
2227 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
2229 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
2236 /********************************************************************************
2237 * Notify the controller of the mailbox location.
2240 amr_std_attach_mailbox(struct amr_softc *sc)
2243 /* program the mailbox physical address */
2244 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
2245 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
2246 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
2247 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
2248 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
2250 /* clear any outstanding interrupt and enable interrupts proper */
2251 AMR_SACK_INTERRUPT(sc);
2252 AMR_SENABLE_INTR(sc);
2255 #ifdef AMR_BOARD_INIT
2256 /********************************************************************************
2257 * Initialise the controller
2260 amr_quartz_init(struct amr_softc *sc)
2262 int status, ostatus;
2264 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
2269 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
2270 if (status != ostatus) {
2271 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
2275 case AMR_QINIT_NOMEM:
2278 case AMR_QINIT_SCAN:
2279 /* XXX we could print channel/target here */
2287 amr_std_init(struct amr_softc *sc)
2289 int status, ostatus;
2291 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
2296 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
2297 if (status != ostatus) {
2298 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
2302 case AMR_SINIT_NOMEM:
2305 case AMR_SINIT_INPROG:
2306 /* XXX we could print channel/target here? */
2314 /********************************************************************************
2315 ********************************************************************************
2317 ********************************************************************************
2318 ********************************************************************************/
2320 /********************************************************************************
2321 * Identify the controller and print some information about it.
2324 amr_describe_controller(struct amr_softc *sc)
2326 struct amr_prodinfo *ap;
2327 struct amr_enquiry *ae;
2332 * Try to get 40LD product info, which tells us what the card is labelled as.
2334 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0, &status)) != NULL) {
2335 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
2336 ap->ap_product, ap->ap_firmware, ap->ap_bios,
2344 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
2346 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0, &status)) != NULL) {
2347 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
2349 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0, &status)) != NULL) {
2352 * Try to work it out based on the PCI signatures.
2354 switch (pci_get_device(sc->amr_dev)) {
2356 prod = "Series 428";
2359 prod = "Series 434";
2362 prod = "unknown controller";
2366 device_printf(sc->amr_dev, "<unsupported controller>\n");
2371 * HP NetRaid controllers have a special encoding of the firmware and
2372 * BIOS versions. The AMI version seems to have it as strings whereas
2373 * the HP version does it with a leading uppercase character and two
2377 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
2378 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
2379 ae->ae_adapter.aa_firmware[1] < ' ' &&
2380 ae->ae_adapter.aa_firmware[0] < ' ' &&
2381 ae->ae_adapter.aa_bios[2] >= 'A' &&
2382 ae->ae_adapter.aa_bios[2] <= 'Z' &&
2383 ae->ae_adapter.aa_bios[1] < ' ' &&
2384 ae->ae_adapter.aa_bios[0] < ' ') {
2386 /* this looks like we have an HP NetRaid version of the MegaRaid */
2388 if(ae->ae_signature == AMR_SIG_438) {
2389 /* the AMI 438 is a NetRaid 3si in HP-land */
2390 prod = "HP NetRaid 3si";
2393 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
2394 prod, ae->ae_adapter.aa_firmware[2],
2395 ae->ae_adapter.aa_firmware[1],
2396 ae->ae_adapter.aa_firmware[0],
2397 ae->ae_adapter.aa_bios[2],
2398 ae->ae_adapter.aa_bios[1],
2399 ae->ae_adapter.aa_bios[0],
2400 ae->ae_adapter.aa_memorysize);
2402 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
2403 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
2404 ae->ae_adapter.aa_memorysize);
2410 amr_dump_blocks(struct amr_softc *sc, int unit, u_int32_t lba, void *data, int blks)
2412 struct amr_command *ac;
2417 sc->amr_state |= AMR_STATE_INTEN;
2419 /* get ourselves a command buffer */
2420 if ((ac = amr_alloccmd(sc)) == NULL)
2422 /* set command flags */
2423 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
2425 /* point the command at our data */
2427 ac->ac_length = blks * AMR_BLKSIZE;
2429 /* build the command proper */
2430 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
2431 ac->ac_mailbox.mb_blkcount = blks;
2432 ac->ac_mailbox.mb_lba = lba;
2433 ac->ac_mailbox.mb_drive = unit;
2435 /* can't assume that interrupts are going to work here, so play it safe */
2436 if (sc->amr_poll_command(ac))
2438 error = ac->ac_status;
2444 sc->amr_state &= ~AMR_STATE_INTEN;
2451 /********************************************************************************
2452 * Print the command (ac) in human-readable format
2456 amr_printcommand(struct amr_command *ac)
2458 struct amr_softc *sc = ac->ac_sc;
2459 struct amr_sgentry *sg;
2462 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
2463 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
2464 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
2465 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
2466 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
2467 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
2468 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
2469 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
2471 /* get base address of s/g table */
2472 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
2473 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
2474 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);