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);
142 * Interface-specific shims
144 static int amr_quartz_submit_command(struct amr_command *ac);
145 static int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
146 static int amr_quartz_poll_command(struct amr_command *ac);
147 static int amr_quartz_poll_command1(struct amr_softc *sc, struct amr_command *ac);
149 static int amr_std_submit_command(struct amr_command *ac);
150 static int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
151 static int amr_std_poll_command(struct amr_command *ac);
152 static void amr_std_attach_mailbox(struct amr_softc *sc);
154 #ifdef AMR_BOARD_INIT
155 static int amr_quartz_init(struct amr_softc *sc);
156 static int amr_std_init(struct amr_softc *sc);
162 static void amr_describe_controller(struct amr_softc *sc);
165 static void amr_printcommand(struct amr_command *ac);
169 static void amr_init_sysctl(struct amr_softc *sc);
170 static int amr_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t addr,
171 int32_t flag, struct thread *td);
173 static MALLOC_DEFINE(M_AMR, "amr", "AMR memory");
175 /********************************************************************************
176 ********************************************************************************
178 ********************************************************************************
179 ********************************************************************************/
181 /********************************************************************************
182 ********************************************************************************
184 ********************************************************************************
185 ********************************************************************************/
187 /********************************************************************************
188 * Initialise the controller and softc.
191 amr_attach(struct amr_softc *sc)
198 * Initialise per-controller queues.
200 amr_init_qhead(&sc->amr_freecmds);
201 amr_init_qhead(&sc->amr_ready);
202 TAILQ_INIT(&sc->amr_cmd_clusters);
203 bioq_init(&sc->amr_bioq);
205 debug(2, "queue init done");
208 * Configure for this controller type.
210 if (AMR_IS_QUARTZ(sc)) {
211 sc->amr_submit_command = amr_quartz_submit_command;
212 sc->amr_get_work = amr_quartz_get_work;
213 sc->amr_poll_command = amr_quartz_poll_command;
214 sc->amr_poll_command1 = amr_quartz_poll_command1;
216 sc->amr_submit_command = amr_std_submit_command;
217 sc->amr_get_work = amr_std_get_work;
218 sc->amr_poll_command = amr_std_poll_command;
219 amr_std_attach_mailbox(sc);
222 #ifdef AMR_BOARD_INIT
223 if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc)))
228 * Allocate initial commands.
230 amr_alloccmd_cluster(sc);
233 * Quiz controller for features and limits.
235 if (amr_query_controller(sc))
238 debug(2, "controller query complete");
241 * preallocate the remaining commands.
243 while (sc->amr_nextslot < sc->amr_maxio)
244 amr_alloccmd_cluster(sc);
252 * Attach our 'real' SCSI channels to CAM.
254 child = device_add_child(sc->amr_dev, "amrp", -1);
255 sc->amr_pass = child;
257 device_set_softc(child, sc);
258 device_set_desc(child, "SCSI Passthrough Bus");
259 bus_generic_attach(sc->amr_dev);
263 * Create the control device.
265 sc->amr_dev_t = make_dev(&amr_cdevsw, device_get_unit(sc->amr_dev), UID_ROOT, GID_OPERATOR,
266 S_IRUSR | S_IWUSR, "amr%d", device_get_unit(sc->amr_dev));
267 sc->amr_dev_t->si_drv1 = sc;
269 if (device_get_unit(sc->amr_dev) == 0)
270 make_dev_alias(sc->amr_dev_t, "megadev0");
273 * Schedule ourselves to bring the controller up once interrupts are
276 bzero(&sc->amr_ich, sizeof(struct intr_config_hook));
277 sc->amr_ich.ich_func = amr_startup;
278 sc->amr_ich.ich_arg = sc;
279 if (config_intrhook_establish(&sc->amr_ich) != 0) {
280 device_printf(sc->amr_dev, "can't establish configuration hook\n");
285 * Print a little information about the controller.
287 amr_describe_controller(sc);
289 debug(2, "attach complete");
293 /********************************************************************************
294 * Locate disk resources and attach children to them.
297 amr_startup(void *arg)
299 struct amr_softc *sc = (struct amr_softc *)arg;
300 struct amr_logdrive *dr;
305 /* pull ourselves off the intrhook chain */
306 if (sc->amr_ich.ich_func)
307 config_intrhook_disestablish(&sc->amr_ich);
308 sc->amr_ich.ich_func = NULL;
310 /* get up-to-date drive information */
311 if (amr_query_controller(sc)) {
312 device_printf(sc->amr_dev, "can't scan controller for drives\n");
316 /* iterate over available drives */
317 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
318 /* are we already attached to this drive? */
319 if (dr->al_disk == 0) {
320 /* generate geometry information */
321 if (dr->al_size > 0x200000) { /* extended translation? */
328 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
330 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
331 if (dr->al_disk == 0)
332 device_printf(sc->amr_dev, "device_add_child failed\n");
333 device_set_ivars(dr->al_disk, dr);
337 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
338 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
340 /* mark controller back up */
341 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
343 /* interrupts will be enabled before we do anything more */
344 sc->amr_state |= AMR_STATE_INTEN;
350 amr_init_sysctl(struct amr_softc *sc)
353 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
354 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
355 OID_AUTO, "allow_volume_configure", CTLFLAG_RW, &sc->amr_allow_vol_config, 0,
357 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
358 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
359 OID_AUTO, "nextslot", CTLFLAG_RD, &sc->amr_nextslot, 0,
361 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
362 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
363 OID_AUTO, "busyslots", CTLFLAG_RD, &sc->amr_busyslots, 0,
365 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
366 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
367 OID_AUTO, "maxio", CTLFLAG_RD, &sc->amr_maxio, 0,
372 /*******************************************************************************
373 * Free resources associated with a controller instance
376 amr_free(struct amr_softc *sc)
378 struct amr_command_cluster *acc;
380 /* detach from CAM */
381 if (sc->amr_pass != NULL)
382 device_delete_child(sc->amr_dev, sc->amr_pass);
384 /* throw away any command buffers */
385 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
386 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
387 amr_freecmd_cluster(acc);
390 /* destroy control device */
391 if( sc->amr_dev_t != (struct cdev *)NULL)
392 destroy_dev(sc->amr_dev_t);
394 if (mtx_initialized(&sc->amr_hw_lock))
395 mtx_destroy(&sc->amr_hw_lock);
397 if (mtx_initialized(&sc->amr_list_lock))
398 mtx_destroy(&sc->amr_list_lock);
401 /*******************************************************************************
402 * Receive a bio structure from a child device and queue it on a particular
403 * disk resource, then poke the disk resource to start as much work as it can.
406 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
410 mtx_lock(&sc->amr_list_lock);
411 amr_enqueue_bio(sc, bio);
413 mtx_unlock(&sc->amr_list_lock);
417 /********************************************************************************
418 * Accept an open operation on the control device.
421 amr_open(struct cdev *dev, int flags, int fmt, struct thread *td)
423 int unit = dev2unit(dev);
424 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
428 sc->amr_state |= AMR_STATE_OPEN;
434 amr_del_ld(struct amr_softc *sc, int drv_no, int status)
439 sc->amr_state &= ~AMR_STATE_QUEUE_FRZN;
440 sc->amr_state &= ~AMR_STATE_LD_DELETE;
441 sc->amr_state |= AMR_STATE_REMAP_LD;
442 debug(1, "State Set");
445 debug(1, "disk begin destroyed %d",drv_no);
446 if (--amr_disks_registered == 0)
447 cdevsw_remove(&amrddisk_cdevsw);
448 debug(1, "disk begin destroyed success");
454 amr_prepare_ld_delete(struct amr_softc *sc)
458 if (sc->ld_del_supported == 0)
461 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
462 sc->amr_state |= AMR_STATE_LD_DELETE;
464 /* 5 minutes for the all the commands to be flushed.*/
465 tsleep((void *)&sc->ld_del_supported, PCATCH | PRIBIO,"delete_logical_drv",hz * 60 * 1);
466 if ( sc->amr_busyslots )
473 /********************************************************************************
474 * Accept the last close on the control device.
477 amr_close(struct cdev *dev, int flags, int fmt, struct thread *td)
479 int unit = dev2unit(dev);
480 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
484 sc->amr_state &= ~AMR_STATE_OPEN;
488 /********************************************************************************
489 * Handle controller-specific control operations.
492 amr_rescan_drives(struct cdev *dev)
494 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
497 sc->amr_state |= AMR_STATE_REMAP_LD;
498 while (sc->amr_busyslots) {
499 device_printf(sc->amr_dev, "idle controller\n");
503 /* mark ourselves as in-shutdown */
504 sc->amr_state |= AMR_STATE_SHUTDOWN;
506 /* flush controller */
507 device_printf(sc->amr_dev, "flushing cache...");
508 printf("%s\n", amr_flush(sc) ? "failed" : "done");
510 /* delete all our child devices */
511 for(i = 0 ; i < AMR_MAXLD; i++) {
512 if(sc->amr_drive[i].al_disk != 0) {
513 if((error = device_delete_child(sc->amr_dev,
514 sc->amr_drive[i].al_disk)) != 0)
517 sc->amr_drive[i].al_disk = 0;
526 * Bug-for-bug compatibility with Linux!
527 * Some apps will send commands with inlen and outlen set to 0,
528 * even though they expect data to be transfered to them from the
529 * card. Linux accidentally allows this by allocating a 4KB
530 * buffer for the transfer anyways, but it then throws it away
531 * without copying it back to the app.
533 * The amr(4) firmware relies on this feature. In fact, it assumes
534 * the buffer is always a power of 2 up to a max of 64k. There is
535 * also at least one case where it assumes a buffer less than 16k is
536 * greater than 16k. However, forcing all buffers to a size of 32k
537 * causes stalls in the firmware. Force each command smaller than
538 * 64k up to the next power of two except that commands between 8k
539 * and 16k are rounded up to 32k instead of 16k.
542 amr_ioctl_buffer_length(unsigned long len)
549 if (len <= 32 * 1024)
551 if (len <= 64 * 1024)
557 amr_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag,
560 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
561 struct amr_command *ac;
562 struct amr_mailbox *mb;
563 struct amr_linux_ioctl ali;
566 int len, ac_flags = 0;
567 int logical_drives_changed = 0;
568 u_int32_t linux_version = 0x02100000;
570 struct amr_passthrough *ap; /* 60 bytes */
577 if ((error = copyin(addr, &ali, sizeof(ali))) != 0)
579 switch (ali.ui.fcs.opcode) {
581 switch(ali.ui.fcs.subopcode) {
583 copyout(&linux_version, (void *)(uintptr_t)ali.data,
584 sizeof(linux_version));
589 copyout(&linux_no_adapter, (void *)(uintptr_t)ali.data,
590 sizeof(linux_no_adapter));
591 td->td_retval[0] = linux_no_adapter;
596 printf("Unknown subopcode\n");
604 if (ali.ui.fcs.opcode == 0x80)
605 len = max(ali.outlen, ali.inlen);
607 len = ali.ui.fcs.length;
609 mb = (void *)&ali.mbox[0];
611 if ((ali.mbox[0] == FC_DEL_LOGDRV && ali.mbox[2] == OP_DEL_LOGDRV) || /* delete */
612 (ali.mbox[0] == AMR_CMD_CONFIG && ali.mbox[2] == 0x0d)) { /* create */
613 if (sc->amr_allow_vol_config == 0) {
617 logical_drives_changed = 1;
620 if (ali.mbox[0] == AMR_CMD_PASS) {
621 mtx_lock(&sc->amr_list_lock);
622 while ((ac = amr_alloccmd(sc)) == NULL)
623 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
624 mtx_unlock(&sc->amr_list_lock);
625 ap = &ac->ac_ccb->ccb_pthru;
627 error = copyin((void *)(uintptr_t)mb->mb_physaddr, ap,
628 sizeof(struct amr_passthrough));
632 if (ap->ap_data_transfer_length)
633 dp = malloc(ap->ap_data_transfer_length, M_AMR,
637 error = copyin((void *)(uintptr_t)ap->ap_data_transfer_address,
638 dp, ap->ap_data_transfer_length);
643 ac_flags = AMR_CMD_DATAIN|AMR_CMD_DATAOUT|AMR_CMD_CCB;
644 bzero(&ac->ac_mailbox, sizeof(ac->ac_mailbox));
645 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
646 ac->ac_flags = ac_flags;
649 ac->ac_length = ap->ap_data_transfer_length;
650 temp = (void *)(uintptr_t)ap->ap_data_transfer_address;
652 mtx_lock(&sc->amr_list_lock);
653 error = amr_wait_command(ac);
654 mtx_unlock(&sc->amr_list_lock);
658 status = ac->ac_status;
659 error = copyout(&status, &((struct amr_passthrough *)(uintptr_t)mb->mb_physaddr)->ap_scsi_status, sizeof(status));
664 error = copyout(dp, temp, ap->ap_data_transfer_length);
668 error = copyout(ap->ap_request_sense_area, ((struct amr_passthrough *)(uintptr_t)mb->mb_physaddr)->ap_request_sense_area, ap->ap_request_sense_length);
674 } else if (ali.mbox[0] == AMR_CMD_PASS_64) {
675 printf("No AMR_CMD_PASS_64\n");
678 } else if (ali.mbox[0] == AMR_CMD_EXTPASS) {
679 printf("No AMR_CMD_EXTPASS\n");
683 len = amr_ioctl_buffer_length(imax(ali.inlen, ali.outlen));
685 dp = malloc(len, M_AMR, M_WAITOK | M_ZERO);
688 error = copyin((void *)(uintptr_t)mb->mb_physaddr, dp, len);
693 mtx_lock(&sc->amr_list_lock);
694 while ((ac = amr_alloccmd(sc)) == NULL)
695 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
697 ac_flags = AMR_CMD_DATAIN|AMR_CMD_DATAOUT;
698 bzero(&ac->ac_mailbox, sizeof(ac->ac_mailbox));
699 bcopy(&ali.mbox[0], &ac->ac_mailbox, sizeof(ali.mbox));
703 ac->ac_flags = ac_flags;
705 error = amr_wait_command(ac);
706 mtx_unlock(&sc->amr_list_lock);
710 status = ac->ac_status;
711 error = copyout(&status, &((struct amr_mailbox *)&((struct amr_linux_ioctl *)addr)->mbox[0])->mb_status, sizeof(status));
713 error = copyout(dp, (void *)(uintptr_t)mb->mb_physaddr, ali.outlen);
719 if (logical_drives_changed)
720 amr_rescan_drives(dev);
726 debug(1, "unknown linux ioctl 0x%lx", cmd);
727 printf("unknown linux ioctl 0x%lx\n", cmd);
733 * At this point, we know that there is a lock held and that these
734 * objects have been allocated.
736 mtx_lock(&sc->amr_list_lock);
739 mtx_unlock(&sc->amr_list_lock);
746 amr_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td)
748 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
751 struct amr_user_ioctl *au;
752 #ifdef AMR_IO_COMMAND32
753 struct amr_user_ioctl32 *au32;
757 struct amr_command *ac;
758 struct amr_mailbox_ioctl *mbi;
759 void *dp, *au_buffer;
760 unsigned long au_length, real_length;
761 unsigned char *au_cmd;
764 struct amr_passthrough *ap; /* 60 bytes */
765 int logical_drives_changed = 0;
769 arg._p = (void *)addr;
779 debug(1, "AMR_IO_VERSION");
780 *arg.result = AMR_IO_VERSION_NUMBER;
783 #ifdef AMR_IO_COMMAND32
785 * Accept ioctl-s from 32-bit binaries on non-32-bit
786 * platforms, such as AMD. LSI's MEGAMGR utility is
787 * the only example known today... -mi
789 case AMR_IO_COMMAND32:
790 debug(1, "AMR_IO_COMMAND32 0x%x", arg.au32->au_cmd[0]);
791 au_cmd = arg.au32->au_cmd;
792 au_buffer = (void *)(u_int64_t)arg.au32->au_buffer;
793 au_length = arg.au32->au_length;
794 au_statusp = &arg.au32->au_status;
799 debug(1, "AMR_IO_COMMAND 0x%x", arg.au->au_cmd[0]);
800 au_cmd = arg.au->au_cmd;
801 au_buffer = (void *)arg.au->au_buffer;
802 au_length = arg.au->au_length;
803 au_statusp = &arg.au->au_status;
807 case 0xc06e6d00: /* Linux emulation */
810 struct amr_linux_ioctl ali;
813 devclass = devclass_find("amr");
814 if (devclass == NULL)
817 error = copyin(addr, &ali, sizeof(ali));
820 if (ali.ui.fcs.opcode == 0x82)
823 adapter = (ali.ui.fcs.adapno) ^ 'm' << 8;
825 sc = devclass_get_softc(devclass, adapter);
829 return (amr_linux_ioctl_int(sc->amr_dev_t, cmd, addr, 0, td));
832 debug(1, "unknown ioctl 0x%lx", cmd);
836 if ((au_cmd[0] == FC_DEL_LOGDRV && au_cmd[1] == OP_DEL_LOGDRV) || /* delete */
837 (au_cmd[0] == AMR_CMD_CONFIG && au_cmd[1] == 0x0d)) { /* create */
838 if (sc->amr_allow_vol_config == 0) {
842 logical_drives_changed = 1;
844 if ((error = amr_prepare_ld_delete(sc)) != 0)
849 /* handle inbound data buffer */
850 real_length = amr_ioctl_buffer_length(au_length);
851 dp = malloc(real_length, M_AMR, M_WAITOK|M_ZERO);
852 if (au_length != 0 && au_cmd[0] != 0x06) {
853 if ((error = copyin(au_buffer, dp, au_length)) != 0) {
857 debug(2, "copyin %ld bytes from %p -> %p", au_length, au_buffer, dp);
860 /* Allocate this now before the mutex gets held */
862 mtx_lock(&sc->amr_list_lock);
863 while ((ac = amr_alloccmd(sc)) == NULL)
864 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
866 /* handle SCSI passthrough command */
867 if (au_cmd[0] == AMR_CMD_PASS) {
870 ap = &ac->ac_ccb->ccb_pthru;
871 bzero(ap, sizeof(struct amr_passthrough));
875 ap->ap_cdb_length = len;
876 bcopy(au_cmd + 3, ap->ap_cdb, len);
878 /* build passthrough */
879 ap->ap_timeout = au_cmd[len + 3] & 0x07;
880 ap->ap_ars = (au_cmd[len + 3] & 0x08) ? 1 : 0;
881 ap->ap_islogical = (au_cmd[len + 3] & 0x80) ? 1 : 0;
882 ap->ap_logical_drive_no = au_cmd[len + 4];
883 ap->ap_channel = au_cmd[len + 5];
884 ap->ap_scsi_id = au_cmd[len + 6];
885 ap->ap_request_sense_length = 14;
886 ap->ap_data_transfer_length = au_length;
887 /* XXX what about the request-sense area? does the caller want it? */
890 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
891 ac->ac_flags = AMR_CMD_CCB;
894 /* direct command to controller */
895 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
897 /* copy pertinent mailbox items */
898 mbi->mb_command = au_cmd[0];
899 mbi->mb_channel = au_cmd[1];
900 mbi->mb_param = au_cmd[2];
901 mbi->mb_pad[0] = au_cmd[3];
902 mbi->mb_drive = au_cmd[4];
906 /* build the command */
908 ac->ac_length = real_length;
909 ac->ac_flags |= AMR_CMD_DATAIN|AMR_CMD_DATAOUT;
911 /* run the command */
912 error = amr_wait_command(ac);
913 mtx_unlock(&sc->amr_list_lock);
917 /* copy out data and set status */
918 if (au_length != 0) {
919 error = copyout(dp, au_buffer, au_length);
921 debug(2, "copyout %ld bytes from %p -> %p", au_length, dp, au_buffer);
922 debug(2, "%p status 0x%x", dp, ac->ac_status);
923 *au_statusp = ac->ac_status;
927 * At this point, we know that there is a lock held and that these
928 * objects have been allocated.
930 mtx_lock(&sc->amr_list_lock);
933 mtx_unlock(&sc->amr_list_lock);
938 if (logical_drives_changed)
939 amr_rescan_drives(dev);
945 /********************************************************************************
946 ********************************************************************************
948 ********************************************************************************
949 ********************************************************************************/
951 /********************************************************************************
952 * Interrogate the controller for the operational parameters we require.
955 amr_query_controller(struct amr_softc *sc)
957 struct amr_enquiry3 *aex;
958 struct amr_prodinfo *ap;
959 struct amr_enquiry *ae;
964 * Greater than 10 byte cdb support
966 sc->support_ext_cdb = amr_support_ext_cdb(sc);
968 if(sc->support_ext_cdb) {
969 debug(2,"supports extended CDBs.");
973 * Try to issue an ENQUIRY3 command
975 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
976 AMR_CONFIG_ENQ3_SOLICITED_FULL, &status)) != NULL) {
979 * Fetch current state of logical drives.
981 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
982 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
983 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
984 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
985 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
986 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
991 * Get product info for channel count.
993 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0, &status)) == NULL) {
994 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
997 sc->amr_maxdrives = 40;
998 sc->amr_maxchan = ap->ap_nschan;
999 sc->amr_maxio = ap->ap_maxio;
1000 sc->amr_type |= AMR_TYPE_40LD;
1003 ap = amr_enquiry(sc, 0, FC_DEL_LOGDRV, OP_SUP_DEL_LOGDRV, 0, &status);
1007 sc->amr_ld_del_supported = 1;
1008 device_printf(sc->amr_dev, "delete logical drives supported by controller\n");
1012 /* failed, try the 8LD ENQUIRY commands */
1013 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0, &status)) == NULL) {
1014 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0, &status)) == NULL) {
1015 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
1018 ae->ae_signature = 0;
1022 * Fetch current state of logical drives.
1024 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
1025 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
1026 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
1027 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
1028 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
1029 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
1032 sc->amr_maxdrives = 8;
1033 sc->amr_maxchan = ae->ae_adapter.aa_channels;
1034 sc->amr_maxio = ae->ae_adapter.aa_maxio;
1039 * Mark remaining drives as unused.
1041 for (; ldrv < AMR_MAXLD; ldrv++)
1042 sc->amr_drive[ldrv].al_size = 0xffffffff;
1045 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
1046 * the controller's reported value, and lockups have been seen when we do.
1048 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
1053 /********************************************************************************
1054 * Run a generic enquiry-style command.
1057 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual, int *status)
1059 struct amr_command *ac;
1069 /* get ourselves a command buffer */
1070 mtx_lock(&sc->amr_list_lock);
1071 ac = amr_alloccmd(sc);
1072 mtx_unlock(&sc->amr_list_lock);
1075 /* allocate the response structure */
1076 if ((result = malloc(bufsize, M_AMR, M_ZERO|M_NOWAIT)) == NULL)
1078 /* set command flags */
1080 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAIN;
1082 /* point the command at our data */
1083 ac->ac_data = result;
1084 ac->ac_length = bufsize;
1086 /* build the command proper */
1087 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
1093 /* can't assume that interrupts are going to work here, so play it safe */
1094 if (sc->amr_poll_command(ac))
1096 error = ac->ac_status;
1097 *status = ac->ac_status;
1100 mtx_lock(&sc->amr_list_lock);
1103 mtx_unlock(&sc->amr_list_lock);
1104 if ((error != 0) && (result != NULL)) {
1105 free(result, M_AMR);
1111 /********************************************************************************
1112 * Flush the controller's internal cache, return status.
1115 amr_flush(struct amr_softc *sc)
1117 struct amr_command *ac;
1120 /* get ourselves a command buffer */
1122 mtx_lock(&sc->amr_list_lock);
1123 ac = amr_alloccmd(sc);
1124 mtx_unlock(&sc->amr_list_lock);
1127 /* set command flags */
1128 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1130 /* build the command proper */
1131 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
1133 /* we have to poll, as the system may be going down or otherwise damaged */
1134 if (sc->amr_poll_command(ac))
1136 error = ac->ac_status;
1139 mtx_lock(&sc->amr_list_lock);
1142 mtx_unlock(&sc->amr_list_lock);
1146 /********************************************************************************
1147 * Detect extented cdb >> greater than 10 byte cdb support
1148 * returns '1' means this support exist
1149 * returns '0' means this support doesn't exist
1152 amr_support_ext_cdb(struct amr_softc *sc)
1154 struct amr_command *ac;
1158 /* get ourselves a command buffer */
1160 mtx_lock(&sc->amr_list_lock);
1161 ac = amr_alloccmd(sc);
1162 mtx_unlock(&sc->amr_list_lock);
1165 /* set command flags */
1166 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1168 /* build the command proper */
1169 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
1174 /* we have to poll, as the system may be going down or otherwise damaged */
1175 if (sc->amr_poll_command(ac))
1177 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
1182 mtx_lock(&sc->amr_list_lock);
1185 mtx_unlock(&sc->amr_list_lock);
1189 /********************************************************************************
1190 * Try to find I/O work for the controller from one or more of the work queues.
1192 * We make the assumption that if the controller is not ready to take a command
1193 * at some given time, it will generate an interrupt at some later time when
1197 amr_startio(struct amr_softc *sc)
1199 struct amr_command *ac;
1201 /* spin until something prevents us from doing any work */
1204 /* Don't bother to queue commands no bounce buffers are available. */
1205 if (sc->amr_state & AMR_STATE_QUEUE_FRZN)
1208 /* try to get a ready command */
1209 ac = amr_dequeue_ready(sc);
1211 /* if that failed, build a command from a bio */
1213 (void)amr_bio_command(sc, &ac);
1215 /* if that failed, build a command from a ccb */
1216 if ((ac == NULL) && (sc->amr_cam_command != NULL))
1217 sc->amr_cam_command(sc, &ac);
1219 /* if we don't have anything to do, give up */
1223 /* try to give the command to the controller; if this fails save it for later and give up */
1224 if (amr_start(ac)) {
1225 debug(2, "controller busy, command deferred");
1226 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
1232 /********************************************************************************
1233 * Handle completion of an I/O command.
1236 amr_completeio(struct amr_command *ac)
1238 struct amrd_softc *sc = ac->ac_bio->bio_disk->d_drv1;
1239 static struct timeval lastfail;
1242 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
1243 ac->ac_bio->bio_error = EIO;
1244 ac->ac_bio->bio_flags |= BIO_ERROR;
1246 if (ppsratecheck(&lastfail, &curfail, 1))
1247 device_printf(sc->amrd_dev, "I/O error - 0x%x\n", ac->ac_status);
1248 /* amr_printcommand(ac);*/
1250 amrd_intr(ac->ac_bio);
1251 mtx_lock(&ac->ac_sc->amr_list_lock);
1253 mtx_unlock(&ac->ac_sc->amr_list_lock);
1256 /********************************************************************************
1257 ********************************************************************************
1259 ********************************************************************************
1260 ********************************************************************************/
1262 /********************************************************************************
1263 * Convert a bio off the top of the bio queue into a command.
1266 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
1268 struct amr_command *ac;
1269 struct amrd_softc *amrd;
1280 if ((ac = amr_alloccmd(sc)) == NULL)
1283 /* get a bio to work on */
1284 if ((bio = amr_dequeue_bio(sc)) == NULL) {
1289 /* connect the bio to the command */
1290 ac->ac_complete = amr_completeio;
1292 ac->ac_data = bio->bio_data;
1293 ac->ac_length = bio->bio_bcount;
1295 switch (bio->bio_cmd) {
1297 ac->ac_flags |= AMR_CMD_DATAIN;
1298 if (AMR_IS_SG64(sc)) {
1299 cmd = AMR_CMD_LREAD64;
1300 ac->ac_flags |= AMR_CMD_SG64;
1302 cmd = AMR_CMD_LREAD;
1305 ac->ac_flags |= AMR_CMD_DATAOUT;
1306 if (AMR_IS_SG64(sc)) {
1307 cmd = AMR_CMD_LWRITE64;
1308 ac->ac_flags |= AMR_CMD_SG64;
1310 cmd = AMR_CMD_LWRITE;
1313 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1314 cmd = AMR_CMD_FLUSH;
1317 amrd = (struct amrd_softc *)bio->bio_disk->d_drv1;
1318 driveno = amrd->amrd_drive - sc->amr_drive;
1319 blkcount = (bio->bio_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
1321 ac->ac_mailbox.mb_command = cmd;
1322 if (bio->bio_cmd & (BIO_READ|BIO_WRITE)) {
1323 ac->ac_mailbox.mb_blkcount = blkcount;
1324 ac->ac_mailbox.mb_lba = bio->bio_pblkno;
1325 if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size) {
1326 device_printf(sc->amr_dev,
1327 "I/O beyond end of unit (%lld,%d > %lu)\n",
1328 (long long)bio->bio_pblkno, blkcount,
1329 (u_long)sc->amr_drive[driveno].al_size);
1332 ac->ac_mailbox.mb_drive = driveno;
1333 if (sc->amr_state & AMR_STATE_REMAP_LD)
1334 ac->ac_mailbox.mb_drive |= 0x80;
1336 /* we fill in the s/g related data when the command is mapped */
1343 /********************************************************************************
1344 * Take a command, submit it to the controller and sleep until it completes
1345 * or fails. Interrupts must be enabled, returns nonzero on error.
1348 amr_wait_command(struct amr_command *ac)
1351 struct amr_softc *sc = ac->ac_sc;
1355 ac->ac_complete = NULL;
1356 ac->ac_flags |= AMR_CMD_SLEEP;
1357 if ((error = amr_start(ac)) != 0) {
1361 while ((ac->ac_flags & AMR_CMD_BUSY) && (error != EWOULDBLOCK)) {
1362 error = msleep(ac,&sc->amr_list_lock, PRIBIO, "amrwcmd", 0);
1368 /********************************************************************************
1369 * Take a command, submit it to the controller and busy-wait for it to return.
1370 * Returns nonzero on error. Can be safely called with interrupts enabled.
1373 amr_std_poll_command(struct amr_command *ac)
1375 struct amr_softc *sc = ac->ac_sc;
1380 ac->ac_complete = NULL;
1381 if ((error = amr_start(ac)) != 0)
1387 * Poll for completion, although the interrupt handler may beat us to it.
1388 * Note that the timeout here is somewhat arbitrary.
1392 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
1393 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
1396 /* XXX the slot is now marked permanently busy */
1398 device_printf(sc->amr_dev, "polled command timeout\n");
1404 amr_setup_polled_dmamap(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1406 struct amr_command *ac = arg;
1407 struct amr_softc *sc = ac->ac_sc;
1411 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1412 ac->ac_status = AMR_STATUS_ABORTED;
1416 amr_setup_sg(arg, segs, nsegs, err);
1418 /* for AMR_CMD_CONFIG Read/Write the s/g count goes elsewhere */
1419 mb_channel = ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_channel;
1420 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG &&
1421 ((mb_channel == AMR_CONFIG_READ_NVRAM_CONFIG) ||
1422 (mb_channel == AMR_CONFIG_WRITE_NVRAM_CONFIG)))
1423 ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param = ac->ac_nsegments;
1425 ac->ac_mailbox.mb_nsgelem = ac->ac_nsegments;
1426 ac->ac_mailbox.mb_physaddr = ac->ac_mb_physaddr;
1427 if (AC_IS_SG64(ac)) {
1429 ac->ac_sg64_lo = ac->ac_sgbusaddr;
1432 sc->amr_poll_command1(sc, ac);
1435 /********************************************************************************
1436 * Take a command, submit it to the controller and busy-wait for it to return.
1437 * Returns nonzero on error. Can be safely called with interrupts enabled.
1440 amr_quartz_poll_command(struct amr_command *ac)
1442 struct amr_softc *sc = ac->ac_sc;
1449 if (AC_IS_SG64(ac)) {
1450 ac->ac_tag = sc->amr_buffer64_dmat;
1451 ac->ac_datamap = ac->ac_dma64map;
1453 ac->ac_tag = sc->amr_buffer_dmat;
1454 ac->ac_datamap = ac->ac_dmamap;
1457 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1458 if (ac->ac_data != 0) {
1459 if (bus_dmamap_load(ac->ac_tag, ac->ac_datamap, ac->ac_data,
1460 ac->ac_length, amr_setup_polled_dmamap, ac, BUS_DMA_NOWAIT) != 0) {
1464 error = amr_quartz_poll_command1(sc, ac);
1471 amr_quartz_poll_command1(struct amr_softc *sc, struct amr_command *ac)
1475 mtx_lock(&sc->amr_hw_lock);
1476 if ((sc->amr_state & AMR_STATE_INTEN) == 0) {
1478 while (sc->amr_busyslots) {
1479 msleep(sc, &sc->amr_hw_lock, PRIBIO | PCATCH, "amrpoll", hz);
1485 if(sc->amr_busyslots) {
1486 device_printf(sc->amr_dev, "adapter is busy\n");
1487 mtx_unlock(&sc->amr_hw_lock);
1488 if (ac->ac_data != NULL) {
1489 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1496 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1498 /* clear the poll/ack fields in the mailbox */
1499 sc->amr_mailbox->mb_ident = 0xFE;
1500 sc->amr_mailbox->mb_nstatus = 0xFF;
1501 sc->amr_mailbox->mb_status = 0xFF;
1502 sc->amr_mailbox->mb_poll = 0;
1503 sc->amr_mailbox->mb_ack = 0;
1504 sc->amr_mailbox->mb_busy = 1;
1506 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1508 while(sc->amr_mailbox->mb_nstatus == 0xFF)
1510 while(sc->amr_mailbox->mb_status == 0xFF)
1512 ac->ac_status=sc->amr_mailbox->mb_status;
1513 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1514 while(sc->amr_mailbox->mb_poll != 0x77)
1516 sc->amr_mailbox->mb_poll = 0;
1517 sc->amr_mailbox->mb_ack = 0x77;
1519 /* acknowledge that we have the commands */
1520 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1521 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1523 mtx_unlock(&sc->amr_hw_lock);
1525 /* unmap the command's data buffer */
1526 if (ac->ac_flags & AMR_CMD_DATAIN) {
1527 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, BUS_DMASYNC_POSTREAD);
1529 if (ac->ac_flags & AMR_CMD_DATAOUT) {
1530 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, BUS_DMASYNC_POSTWRITE);
1532 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1538 amr_freeslot(struct amr_command *ac)
1540 struct amr_softc *sc = ac->ac_sc;
1546 if (sc->amr_busycmd[slot] == NULL)
1547 panic("amr: slot %d not busy?\n", slot);
1549 sc->amr_busycmd[slot] = NULL;
1550 atomic_subtract_int(&sc->amr_busyslots, 1);
1555 /********************************************************************************
1556 * Map/unmap (ac)'s data in the controller's addressable space as required.
1558 * These functions may be safely called multiple times on a given command.
1561 amr_setup_sg(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1563 struct amr_command *ac = (struct amr_command *)arg;
1564 struct amr_sgentry *sg;
1565 struct amr_sg64entry *sg64;
1570 /* get base address of s/g table */
1571 sg = ac->ac_sg.sg32;
1572 sg64 = ac->ac_sg.sg64;
1574 if (AC_IS_SG64(ac)) {
1575 ac->ac_nsegments = nsegments;
1576 ac->ac_mb_physaddr = 0xffffffff;
1577 for (i = 0; i < nsegments; i++, sg64++) {
1578 sg64->sg_addr = segs[i].ds_addr;
1579 sg64->sg_count = segs[i].ds_len;
1582 /* decide whether we need to populate the s/g table */
1583 if (nsegments < 2) {
1584 ac->ac_nsegments = 0;
1585 ac->ac_mb_physaddr = segs[0].ds_addr;
1587 ac->ac_nsegments = nsegments;
1588 ac->ac_mb_physaddr = ac->ac_sgbusaddr;
1589 for (i = 0; i < nsegments; i++, sg++) {
1590 sg->sg_addr = segs[i].ds_addr;
1591 sg->sg_count = segs[i].ds_len;
1597 if (ac->ac_flags & AMR_CMD_DATAIN)
1598 flags |= BUS_DMASYNC_PREREAD;
1599 if (ac->ac_flags & AMR_CMD_DATAOUT)
1600 flags |= BUS_DMASYNC_PREWRITE;
1601 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, flags);
1602 ac->ac_flags |= AMR_CMD_MAPPED;
1606 amr_setup_data(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1608 struct amr_command *ac = arg;
1609 struct amr_softc *sc = ac->ac_sc;
1613 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1618 amr_setup_sg(arg, segs, nsegs, err);
1620 /* for AMR_CMD_CONFIG Read/Write the s/g count goes elsewhere */
1621 mb_channel = ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_channel;
1622 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG &&
1623 ((mb_channel == AMR_CONFIG_READ_NVRAM_CONFIG) ||
1624 (mb_channel == AMR_CONFIG_WRITE_NVRAM_CONFIG)))
1625 ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param = ac->ac_nsegments;
1627 ac->ac_mailbox.mb_nsgelem = ac->ac_nsegments;
1628 ac->ac_mailbox.mb_physaddr = ac->ac_mb_physaddr;
1629 if (AC_IS_SG64(ac)) {
1631 ac->ac_sg64_lo = ac->ac_sgbusaddr;
1634 if (sc->amr_submit_command(ac) == EBUSY) {
1636 amr_requeue_ready(ac);
1641 amr_setup_ccb(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1643 struct amr_command *ac = arg;
1644 struct amr_softc *sc = ac->ac_sc;
1645 struct amr_passthrough *ap = &ac->ac_ccb->ccb_pthru;
1646 struct amr_ext_passthrough *aep = &ac->ac_ccb->ccb_epthru;
1649 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1654 /* Set up the mailbox portion of the command to point at the ccb */
1655 ac->ac_mailbox.mb_nsgelem = 0;
1656 ac->ac_mailbox.mb_physaddr = ac->ac_ccb_busaddr;
1658 amr_setup_sg(arg, segs, nsegs, err);
1660 switch (ac->ac_mailbox.mb_command) {
1661 case AMR_CMD_EXTPASS:
1662 aep->ap_no_sg_elements = ac->ac_nsegments;
1663 aep->ap_data_transfer_address = ac->ac_mb_physaddr;
1666 ap->ap_no_sg_elements = ac->ac_nsegments;
1667 ap->ap_data_transfer_address = ac->ac_mb_physaddr;
1670 panic("Unknown ccb command");
1673 if (sc->amr_submit_command(ac) == EBUSY) {
1675 amr_requeue_ready(ac);
1680 amr_mapcmd(struct amr_command *ac)
1682 bus_dmamap_callback_t *cb;
1683 struct amr_softc *sc = ac->ac_sc;
1687 if (AC_IS_SG64(ac)) {
1688 ac->ac_tag = sc->amr_buffer64_dmat;
1689 ac->ac_datamap = ac->ac_dma64map;
1691 ac->ac_tag = sc->amr_buffer_dmat;
1692 ac->ac_datamap = ac->ac_dmamap;
1695 if (ac->ac_flags & AMR_CMD_CCB)
1698 cb = amr_setup_data;
1700 /* if the command involves data at all, and hasn't been mapped */
1701 if ((ac->ac_flags & AMR_CMD_MAPPED) == 0 && (ac->ac_data != NULL)) {
1702 /* map the data buffers into bus space and build the s/g list */
1703 if (bus_dmamap_load(ac->ac_tag, ac->ac_datamap, ac->ac_data,
1704 ac->ac_length, cb, ac, 0) == EINPROGRESS) {
1705 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
1708 if (sc->amr_submit_command(ac) == EBUSY) {
1710 amr_requeue_ready(ac);
1718 amr_unmapcmd(struct amr_command *ac)
1724 /* if the command involved data at all and was mapped */
1725 if (ac->ac_flags & AMR_CMD_MAPPED) {
1727 if (ac->ac_data != NULL) {
1730 if (ac->ac_flags & AMR_CMD_DATAIN)
1731 flag |= BUS_DMASYNC_POSTREAD;
1732 if (ac->ac_flags & AMR_CMD_DATAOUT)
1733 flag |= BUS_DMASYNC_POSTWRITE;
1735 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, flag);
1736 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1739 ac->ac_flags &= ~AMR_CMD_MAPPED;
1744 amr_abort_load(struct amr_command *ac)
1747 struct amr_softc *sc = ac->ac_sc;
1749 mtx_assert(&sc->amr_list_lock, MA_OWNED);
1751 ac->ac_status = AMR_STATUS_ABORTED;
1752 amr_init_qhead(&head);
1753 amr_enqueue_completed(ac, &head);
1755 mtx_unlock(&sc->amr_list_lock);
1756 amr_complete(sc, &head);
1757 mtx_lock(&sc->amr_list_lock);
1760 /********************************************************************************
1761 * Take a command and give it to the controller, returns 0 if successful, or
1762 * EBUSY if the command should be retried later.
1765 amr_start(struct amr_command *ac)
1767 struct amr_softc *sc;
1773 /* mark command as busy so that polling consumer can tell */
1775 ac->ac_flags |= AMR_CMD_BUSY;
1777 /* get a command slot (freed in amr_done) */
1779 if (sc->amr_busycmd[slot] != NULL)
1780 panic("amr: slot %d busy?\n", slot);
1781 sc->amr_busycmd[slot] = ac;
1782 atomic_add_int(&sc->amr_busyslots, 1);
1784 /* Now we have a slot, we can map the command (unmapped in amr_complete). */
1785 if ((error = amr_mapcmd(ac)) == ENOMEM) {
1787 * Memroy resources are short, so free the slot and let this be tried
1796 /********************************************************************************
1797 * Extract one or more completed commands from the controller (sc)
1799 * Returns nonzero if any commands on the work queue were marked as completed.
1803 amr_done(struct amr_softc *sc)
1806 struct amr_command *ac;
1807 struct amr_mailbox mbox;
1812 /* See if there's anything for us to do */
1814 amr_init_qhead(&head);
1816 /* loop collecting completed commands */
1818 /* poll for a completed command's identifier and status */
1819 if (sc->amr_get_work(sc, &mbox)) {
1822 /* iterate over completed commands in this result */
1823 for (i = 0; i < mbox.mb_nstatus; i++) {
1824 /* get pointer to busy command */
1825 idx = mbox.mb_completed[i] - 1;
1826 ac = sc->amr_busycmd[idx];
1828 /* really a busy command? */
1831 /* pull the command from the busy index */
1834 /* save status for later use */
1835 ac->ac_status = mbox.mb_status;
1836 amr_enqueue_completed(ac, &head);
1837 debug(3, "completed command with status %x", mbox.mb_status);
1839 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1843 break; /* no work */
1846 /* handle completion and timeouts */
1847 amr_complete(sc, &head);
1852 /********************************************************************************
1853 * Do completion processing on done commands on (sc)
1857 amr_complete(void *context, ac_qhead_t *head)
1859 struct amr_softc *sc = (struct amr_softc *)context;
1860 struct amr_command *ac;
1864 /* pull completed commands off the queue */
1866 ac = amr_dequeue_completed(sc, head);
1870 /* unmap the command's data buffer */
1874 * Is there a completion handler?
1876 if (ac->ac_complete != NULL) {
1877 /* unbusy the command */
1878 ac->ac_flags &= ~AMR_CMD_BUSY;
1879 ac->ac_complete(ac);
1882 * Is someone sleeping on this one?
1885 mtx_lock(&sc->amr_list_lock);
1886 ac->ac_flags &= ~AMR_CMD_BUSY;
1887 if (ac->ac_flags & AMR_CMD_SLEEP) {
1888 /* unbusy the command */
1891 mtx_unlock(&sc->amr_list_lock);
1894 if(!sc->amr_busyslots) {
1899 mtx_lock(&sc->amr_list_lock);
1900 sc->amr_state &= ~AMR_STATE_QUEUE_FRZN;
1902 mtx_unlock(&sc->amr_list_lock);
1905 /********************************************************************************
1906 ********************************************************************************
1907 Command Buffer Management
1908 ********************************************************************************
1909 ********************************************************************************/
1911 /********************************************************************************
1912 * Get a new command buffer.
1914 * This may return NULL in low-memory cases.
1916 * If possible, we recycle a command buffer that's been used before.
1918 struct amr_command *
1919 amr_alloccmd(struct amr_softc *sc)
1921 struct amr_command *ac;
1925 ac = amr_dequeue_free(sc);
1927 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
1931 /* clear out significant fields */
1933 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1937 ac->ac_complete = NULL;
1940 ac->ac_datamap = NULL;
1944 /********************************************************************************
1945 * Release a command buffer for recycling.
1948 amr_releasecmd(struct amr_command *ac)
1952 amr_enqueue_free(ac);
1955 /********************************************************************************
1956 * Allocate a new command cluster and initialise it.
1959 amr_alloccmd_cluster(struct amr_softc *sc)
1961 struct amr_command_cluster *acc;
1962 struct amr_command *ac;
1966 * If we haven't found the real limit yet, let us have a couple of
1967 * commands in order to be able to probe.
1969 if (sc->amr_maxio == 0)
1972 if (sc->amr_nextslot > sc->amr_maxio)
1974 acc = malloc(AMR_CMD_CLUSTERSIZE, M_AMR, M_NOWAIT | M_ZERO);
1976 nextslot = sc->amr_nextslot;
1977 mtx_lock(&sc->amr_list_lock);
1978 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1979 mtx_unlock(&sc->amr_list_lock);
1980 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1981 ac = &acc->acc_command[i];
1983 ac->ac_slot = nextslot;
1986 * The SG table for each slot is a fixed size and is assumed to
1987 * to hold 64-bit s/g objects when the driver is configured to do
1988 * 64-bit DMA. 32-bit DMA commands still use the same table, but
1989 * cast down to 32-bit objects.
1991 if (AMR_IS_SG64(sc)) {
1992 ac->ac_sgbusaddr = sc->amr_sgbusaddr +
1993 (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sg64entry));
1994 ac->ac_sg.sg64 = sc->amr_sg64table + (ac->ac_slot * AMR_NSEG);
1996 ac->ac_sgbusaddr = sc->amr_sgbusaddr +
1997 (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
1998 ac->ac_sg.sg32 = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
2001 ac->ac_ccb = sc->amr_ccb + ac->ac_slot;
2002 ac->ac_ccb_busaddr = sc->amr_ccb_busaddr +
2003 (ac->ac_slot * sizeof(union amr_ccb));
2005 if (bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap))
2007 if (AMR_IS_SG64(sc) &&
2008 (bus_dmamap_create(sc->amr_buffer64_dmat, 0,&ac->ac_dma64map)))
2011 if (++nextslot > sc->amr_maxio)
2014 sc->amr_nextslot = nextslot;
2018 /********************************************************************************
2019 * Free a command cluster
2022 amr_freecmd_cluster(struct amr_command_cluster *acc)
2024 struct amr_softc *sc = acc->acc_command[0].ac_sc;
2027 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
2028 if (acc->acc_command[i].ac_sc == NULL)
2030 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
2031 if (AMR_IS_SG64(sc))
2032 bus_dmamap_destroy(sc->amr_buffer64_dmat, acc->acc_command[i].ac_dma64map);
2037 /********************************************************************************
2038 ********************************************************************************
2039 Interface-specific Shims
2040 ********************************************************************************
2041 ********************************************************************************/
2043 /********************************************************************************
2044 * Tell the controller that the mailbox contains a valid command
2047 amr_quartz_submit_command(struct amr_command *ac)
2049 struct amr_softc *sc = ac->ac_sc;
2050 static struct timeval lastfail;
2054 mtx_lock(&sc->amr_hw_lock);
2055 while (sc->amr_mailbox->mb_busy && (i++ < 10)) {
2057 /* This is a no-op read that flushes pending mailbox updates */
2060 if (sc->amr_mailbox->mb_busy) {
2061 mtx_unlock(&sc->amr_hw_lock);
2062 if (ac->ac_retries++ > 1000) {
2063 if (ppsratecheck(&lastfail, &curfail, 1))
2064 device_printf(sc->amr_dev, "Too many retries on command %p. "
2065 "Controller is likely dead\n", ac);
2072 * Save the slot number so that we can locate this command when complete.
2073 * Note that ident = 0 seems to be special, so we don't use it.
2075 ac->ac_mailbox.mb_ident = ac->ac_slot + 1; /* will be coppied into mbox */
2076 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, 14);
2077 sc->amr_mailbox->mb_busy = 1;
2078 sc->amr_mailbox->mb_poll = 0;
2079 sc->amr_mailbox->mb_ack = 0;
2080 sc->amr_mailbox64->sg64_hi = ac->ac_sg64_hi;
2081 sc->amr_mailbox64->sg64_lo = ac->ac_sg64_lo;
2083 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
2084 mtx_unlock(&sc->amr_hw_lock);
2089 amr_std_submit_command(struct amr_command *ac)
2091 struct amr_softc *sc = ac->ac_sc;
2092 static struct timeval lastfail;
2095 mtx_lock(&sc->amr_hw_lock);
2096 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG) {
2097 mtx_unlock(&sc->amr_hw_lock);
2098 if (ac->ac_retries++ > 1000) {
2099 if (ppsratecheck(&lastfail, &curfail, 1))
2100 device_printf(sc->amr_dev, "Too many retries on command %p. "
2101 "Controller is likely dead\n", ac);
2108 * Save the slot number so that we can locate this command when complete.
2109 * Note that ident = 0 seems to be special, so we don't use it.
2111 ac->ac_mailbox.mb_ident = ac->ac_slot + 1; /* will be coppied into mbox */
2112 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, 14);
2113 sc->amr_mailbox->mb_busy = 1;
2114 sc->amr_mailbox->mb_poll = 0;
2115 sc->amr_mailbox->mb_ack = 0;
2117 AMR_SPOST_COMMAND(sc);
2118 mtx_unlock(&sc->amr_hw_lock);
2122 /********************************************************************************
2123 * Claim any work that the controller has completed; acknowledge completion,
2124 * save details of the completion in (mbsave)
2127 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
2132 u_int8_t completed[46];
2138 /* work waiting for us? */
2139 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
2141 /* acknowledge interrupt */
2142 AMR_QPUT_ODB(sc, AMR_QODB_READY);
2144 while ((nstatus = sc->amr_mailbox->mb_nstatus) == 0xff)
2146 sc->amr_mailbox->mb_nstatus = 0xff;
2148 /* wait until fw wrote out all completions */
2149 for (i = 0; i < nstatus; i++) {
2150 while ((completed[i] = sc->amr_mailbox->mb_completed[i]) == 0xff)
2152 sc->amr_mailbox->mb_completed[i] = 0xff;
2155 /* Save information for later processing */
2156 mbsave->mb_nstatus = nstatus;
2157 mbsave->mb_status = sc->amr_mailbox->mb_status;
2158 sc->amr_mailbox->mb_status = 0xff;
2160 for (i = 0; i < nstatus; i++)
2161 mbsave->mb_completed[i] = completed[i];
2163 /* acknowledge that we have the commands */
2164 AMR_QPUT_IDB(sc, AMR_QIDB_ACK);
2167 #ifndef AMR_QUARTZ_GOFASTER
2169 * This waits for the controller to notice that we've taken the
2170 * command from it. It's very inefficient, and we shouldn't do it,
2171 * but if we remove this code, we stop completing commands under
2174 * Peter J says we shouldn't do this. The documentation says we
2175 * should. Who is right?
2177 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
2178 ; /* XXX aiee! what if it dies? */
2182 worked = 1; /* got some work */
2189 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
2198 /* check for valid interrupt status */
2199 istat = AMR_SGET_ISTAT(sc);
2200 if ((istat & AMR_SINTR_VALID) != 0) {
2201 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
2203 /* save mailbox, which contains a list of completed commands */
2204 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
2206 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
2213 /********************************************************************************
2214 * Notify the controller of the mailbox location.
2217 amr_std_attach_mailbox(struct amr_softc *sc)
2220 /* program the mailbox physical address */
2221 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
2222 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
2223 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
2224 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
2225 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
2227 /* clear any outstanding interrupt and enable interrupts proper */
2228 AMR_SACK_INTERRUPT(sc);
2229 AMR_SENABLE_INTR(sc);
2232 #ifdef AMR_BOARD_INIT
2233 /********************************************************************************
2234 * Initialise the controller
2237 amr_quartz_init(struct amr_softc *sc)
2239 int status, ostatus;
2241 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
2246 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
2247 if (status != ostatus) {
2248 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
2252 case AMR_QINIT_NOMEM:
2255 case AMR_QINIT_SCAN:
2256 /* XXX we could print channel/target here */
2264 amr_std_init(struct amr_softc *sc)
2266 int status, ostatus;
2268 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
2273 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
2274 if (status != ostatus) {
2275 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
2279 case AMR_SINIT_NOMEM:
2282 case AMR_SINIT_INPROG:
2283 /* XXX we could print channel/target here? */
2291 /********************************************************************************
2292 ********************************************************************************
2294 ********************************************************************************
2295 ********************************************************************************/
2297 /********************************************************************************
2298 * Identify the controller and print some information about it.
2301 amr_describe_controller(struct amr_softc *sc)
2303 struct amr_prodinfo *ap;
2304 struct amr_enquiry *ae;
2309 * Try to get 40LD product info, which tells us what the card is labelled as.
2311 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0, &status)) != NULL) {
2312 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
2313 ap->ap_product, ap->ap_firmware, ap->ap_bios,
2321 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
2323 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0, &status)) != NULL) {
2324 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
2326 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0, &status)) != NULL) {
2329 * Try to work it out based on the PCI signatures.
2331 switch (pci_get_device(sc->amr_dev)) {
2333 prod = "Series 428";
2336 prod = "Series 434";
2339 prod = "unknown controller";
2343 device_printf(sc->amr_dev, "<unsupported controller>\n");
2348 * HP NetRaid controllers have a special encoding of the firmware and
2349 * BIOS versions. The AMI version seems to have it as strings whereas
2350 * the HP version does it with a leading uppercase character and two
2354 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
2355 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
2356 ae->ae_adapter.aa_firmware[1] < ' ' &&
2357 ae->ae_adapter.aa_firmware[0] < ' ' &&
2358 ae->ae_adapter.aa_bios[2] >= 'A' &&
2359 ae->ae_adapter.aa_bios[2] <= 'Z' &&
2360 ae->ae_adapter.aa_bios[1] < ' ' &&
2361 ae->ae_adapter.aa_bios[0] < ' ') {
2363 /* this looks like we have an HP NetRaid version of the MegaRaid */
2365 if(ae->ae_signature == AMR_SIG_438) {
2366 /* the AMI 438 is a NetRaid 3si in HP-land */
2367 prod = "HP NetRaid 3si";
2370 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
2371 prod, ae->ae_adapter.aa_firmware[2],
2372 ae->ae_adapter.aa_firmware[1],
2373 ae->ae_adapter.aa_firmware[0],
2374 ae->ae_adapter.aa_bios[2],
2375 ae->ae_adapter.aa_bios[1],
2376 ae->ae_adapter.aa_bios[0],
2377 ae->ae_adapter.aa_memorysize);
2379 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
2380 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
2381 ae->ae_adapter.aa_memorysize);
2387 amr_dump_blocks(struct amr_softc *sc, int unit, u_int32_t lba, void *data, int blks)
2389 struct amr_command *ac;
2394 sc->amr_state |= AMR_STATE_INTEN;
2396 /* get ourselves a command buffer */
2397 if ((ac = amr_alloccmd(sc)) == NULL)
2399 /* set command flags */
2400 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
2402 /* point the command at our data */
2404 ac->ac_length = blks * AMR_BLKSIZE;
2406 /* build the command proper */
2407 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
2408 ac->ac_mailbox.mb_blkcount = blks;
2409 ac->ac_mailbox.mb_lba = lba;
2410 ac->ac_mailbox.mb_drive = unit;
2412 /* can't assume that interrupts are going to work here, so play it safe */
2413 if (sc->amr_poll_command(ac))
2415 error = ac->ac_status;
2421 sc->amr_state &= ~AMR_STATE_INTEN;
2428 /********************************************************************************
2429 * Print the command (ac) in human-readable format
2433 amr_printcommand(struct amr_command *ac)
2435 struct amr_softc *sc = ac->ac_sc;
2436 struct amr_sgentry *sg;
2439 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
2440 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
2441 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
2442 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
2443 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
2444 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
2445 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
2446 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
2448 /* get base address of s/g table */
2449 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
2450 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
2451 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);