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 adapter, 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 adapter = (ali.ui.fcs.adapno) ^ 'm' << 8;
611 mb = (void *)&ali.mbox[0];
613 if ((ali.mbox[0] == FC_DEL_LOGDRV && ali.mbox[2] == OP_DEL_LOGDRV) || /* delete */
614 (ali.mbox[0] == AMR_CMD_CONFIG && ali.mbox[2] == 0x0d)) { /* create */
615 if (sc->amr_allow_vol_config == 0) {
619 logical_drives_changed = 1;
622 if (ali.mbox[0] == AMR_CMD_PASS) {
623 mtx_lock(&sc->amr_list_lock);
624 while ((ac = amr_alloccmd(sc)) == NULL)
625 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
626 mtx_unlock(&sc->amr_list_lock);
627 ap = &ac->ac_ccb->ccb_pthru;
629 error = copyin((void *)(uintptr_t)mb->mb_physaddr, ap,
630 sizeof(struct amr_passthrough));
634 if (ap->ap_data_transfer_length)
635 dp = malloc(ap->ap_data_transfer_length, M_AMR,
639 error = copyin((void *)(uintptr_t)ap->ap_data_transfer_address,
640 dp, ap->ap_data_transfer_length);
645 ac_flags = AMR_CMD_DATAIN|AMR_CMD_DATAOUT|AMR_CMD_CCB;
646 bzero(&ac->ac_mailbox, sizeof(ac->ac_mailbox));
647 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
648 ac->ac_flags = ac_flags;
651 ac->ac_length = ap->ap_data_transfer_length;
652 temp = (void *)(uintptr_t)ap->ap_data_transfer_address;
654 mtx_lock(&sc->amr_list_lock);
655 error = amr_wait_command(ac);
656 mtx_unlock(&sc->amr_list_lock);
660 status = ac->ac_status;
661 error = copyout(&status, &((struct amr_passthrough *)(uintptr_t)mb->mb_physaddr)->ap_scsi_status, sizeof(status));
666 error = copyout(dp, temp, ap->ap_data_transfer_length);
670 error = copyout(ap->ap_request_sense_area, ((struct amr_passthrough *)(uintptr_t)mb->mb_physaddr)->ap_request_sense_area, ap->ap_request_sense_length);
676 } else if (ali.mbox[0] == AMR_CMD_PASS_64) {
677 printf("No AMR_CMD_PASS_64\n");
680 } else if (ali.mbox[0] == AMR_CMD_EXTPASS) {
681 printf("No AMR_CMD_EXTPASS\n");
685 len = amr_ioctl_buffer_length(imax(ali.inlen, ali.outlen));
687 dp = malloc(len, M_AMR, M_WAITOK | M_ZERO);
690 error = copyin((void *)(uintptr_t)mb->mb_physaddr, dp, len);
695 mtx_lock(&sc->amr_list_lock);
696 while ((ac = amr_alloccmd(sc)) == NULL)
697 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
699 ac_flags = AMR_CMD_DATAIN|AMR_CMD_DATAOUT;
700 bzero(&ac->ac_mailbox, sizeof(ac->ac_mailbox));
701 bcopy(&ali.mbox[0], &ac->ac_mailbox, sizeof(ali.mbox));
705 ac->ac_flags = ac_flags;
707 error = amr_wait_command(ac);
708 mtx_unlock(&sc->amr_list_lock);
712 status = ac->ac_status;
713 error = copyout(&status, &((struct amr_mailbox *)&((struct amr_linux_ioctl *)addr)->mbox[0])->mb_status, sizeof(status));
715 error = copyout(dp, (void *)(uintptr_t)mb->mb_physaddr, ali.outlen);
721 if (logical_drives_changed)
722 amr_rescan_drives(dev);
728 debug(1, "unknown linux ioctl 0x%lx", cmd);
729 printf("unknown linux ioctl 0x%lx\n", cmd);
735 * At this point, we know that there is a lock held and that these
736 * objects have been allocated.
738 mtx_lock(&sc->amr_list_lock);
741 mtx_unlock(&sc->amr_list_lock);
748 amr_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td)
750 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
753 struct amr_user_ioctl *au;
754 #ifdef AMR_IO_COMMAND32
755 struct amr_user_ioctl32 *au32;
759 struct amr_command *ac;
760 struct amr_mailbox_ioctl *mbi;
761 void *dp, *au_buffer;
762 unsigned long au_length, real_length;
763 unsigned char *au_cmd;
764 int *au_statusp, au_direction;
766 struct amr_passthrough *ap; /* 60 bytes */
767 int logical_drives_changed = 0;
771 arg._p = (void *)addr;
781 debug(1, "AMR_IO_VERSION");
782 *arg.result = AMR_IO_VERSION_NUMBER;
785 #ifdef AMR_IO_COMMAND32
787 * Accept ioctl-s from 32-bit binaries on non-32-bit
788 * platforms, such as AMD. LSI's MEGAMGR utility is
789 * the only example known today... -mi
791 case AMR_IO_COMMAND32:
792 debug(1, "AMR_IO_COMMAND32 0x%x", arg.au32->au_cmd[0]);
793 au_cmd = arg.au32->au_cmd;
794 au_buffer = (void *)(u_int64_t)arg.au32->au_buffer;
795 au_length = arg.au32->au_length;
796 au_direction = arg.au32->au_direction;
797 au_statusp = &arg.au32->au_status;
802 debug(1, "AMR_IO_COMMAND 0x%x", arg.au->au_cmd[0]);
803 au_cmd = arg.au->au_cmd;
804 au_buffer = (void *)arg.au->au_buffer;
805 au_length = arg.au->au_length;
806 au_direction = arg.au->au_direction;
807 au_statusp = &arg.au->au_status;
811 case 0xc06e6d00: /* Linux emulation */
814 struct amr_linux_ioctl ali;
817 devclass = devclass_find("amr");
818 if (devclass == NULL)
821 error = copyin(addr, &ali, sizeof(ali));
824 if (ali.ui.fcs.opcode == 0x82)
827 adapter = (ali.ui.fcs.adapno) ^ 'm' << 8;
829 sc = devclass_get_softc(devclass, adapter);
833 return (amr_linux_ioctl_int(sc->amr_dev_t, cmd, addr, 0, td));
836 debug(1, "unknown ioctl 0x%lx", cmd);
840 if ((au_cmd[0] == FC_DEL_LOGDRV && au_cmd[1] == OP_DEL_LOGDRV) || /* delete */
841 (au_cmd[0] == AMR_CMD_CONFIG && au_cmd[1] == 0x0d)) { /* create */
842 if (sc->amr_allow_vol_config == 0) {
846 logical_drives_changed = 1;
848 if ((error = amr_prepare_ld_delete(sc)) != 0)
853 /* handle inbound data buffer */
854 real_length = amr_ioctl_buffer_length(au_length);
855 dp = malloc(real_length, M_AMR, M_WAITOK|M_ZERO);
856 if (au_length != 0 && au_cmd[0] != 0x06) {
857 if ((error = copyin(au_buffer, dp, au_length)) != 0) {
861 debug(2, "copyin %ld bytes from %p -> %p", au_length, au_buffer, dp);
864 /* Allocate this now before the mutex gets held */
866 mtx_lock(&sc->amr_list_lock);
867 while ((ac = amr_alloccmd(sc)) == NULL)
868 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
870 /* handle SCSI passthrough command */
871 if (au_cmd[0] == AMR_CMD_PASS) {
874 ap = &ac->ac_ccb->ccb_pthru;
875 bzero(ap, sizeof(struct amr_passthrough));
879 ap->ap_cdb_length = len;
880 bcopy(au_cmd + 3, ap->ap_cdb, len);
882 /* build passthrough */
883 ap->ap_timeout = au_cmd[len + 3] & 0x07;
884 ap->ap_ars = (au_cmd[len + 3] & 0x08) ? 1 : 0;
885 ap->ap_islogical = (au_cmd[len + 3] & 0x80) ? 1 : 0;
886 ap->ap_logical_drive_no = au_cmd[len + 4];
887 ap->ap_channel = au_cmd[len + 5];
888 ap->ap_scsi_id = au_cmd[len + 6];
889 ap->ap_request_sense_length = 14;
890 ap->ap_data_transfer_length = au_length;
891 /* XXX what about the request-sense area? does the caller want it? */
894 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
895 ac->ac_flags = AMR_CMD_CCB;
898 /* direct command to controller */
899 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
901 /* copy pertinent mailbox items */
902 mbi->mb_command = au_cmd[0];
903 mbi->mb_channel = au_cmd[1];
904 mbi->mb_param = au_cmd[2];
905 mbi->mb_pad[0] = au_cmd[3];
906 mbi->mb_drive = au_cmd[4];
910 /* build the command */
912 ac->ac_length = real_length;
913 ac->ac_flags |= AMR_CMD_DATAIN|AMR_CMD_DATAOUT;
915 /* run the command */
916 error = amr_wait_command(ac);
917 mtx_unlock(&sc->amr_list_lock);
921 /* copy out data and set status */
922 if (au_length != 0) {
923 error = copyout(dp, au_buffer, au_length);
925 debug(2, "copyout %ld bytes from %p -> %p", au_length, dp, au_buffer);
926 debug(2, "%p status 0x%x", dp, ac->ac_status);
927 *au_statusp = ac->ac_status;
931 * At this point, we know that there is a lock held and that these
932 * objects have been allocated.
934 mtx_lock(&sc->amr_list_lock);
937 mtx_unlock(&sc->amr_list_lock);
942 if (logical_drives_changed)
943 amr_rescan_drives(dev);
949 /********************************************************************************
950 ********************************************************************************
952 ********************************************************************************
953 ********************************************************************************/
955 /********************************************************************************
956 * Interrogate the controller for the operational parameters we require.
959 amr_query_controller(struct amr_softc *sc)
961 struct amr_enquiry3 *aex;
962 struct amr_prodinfo *ap;
963 struct amr_enquiry *ae;
968 * Greater than 10 byte cdb support
970 sc->support_ext_cdb = amr_support_ext_cdb(sc);
972 if(sc->support_ext_cdb) {
973 debug(2,"supports extended CDBs.");
977 * Try to issue an ENQUIRY3 command
979 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
980 AMR_CONFIG_ENQ3_SOLICITED_FULL, &status)) != NULL) {
983 * Fetch current state of logical drives.
985 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
986 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
987 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
988 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
989 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
990 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
995 * Get product info for channel count.
997 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0, &status)) == NULL) {
998 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
1001 sc->amr_maxdrives = 40;
1002 sc->amr_maxchan = ap->ap_nschan;
1003 sc->amr_maxio = ap->ap_maxio;
1004 sc->amr_type |= AMR_TYPE_40LD;
1007 ap = amr_enquiry(sc, 0, FC_DEL_LOGDRV, OP_SUP_DEL_LOGDRV, 0, &status);
1011 sc->amr_ld_del_supported = 1;
1012 device_printf(sc->amr_dev, "delete logical drives supported by controller\n");
1016 /* failed, try the 8LD ENQUIRY commands */
1017 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0, &status)) == NULL) {
1018 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0, &status)) == NULL) {
1019 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
1022 ae->ae_signature = 0;
1026 * Fetch current state of logical drives.
1028 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
1029 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
1030 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
1031 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
1032 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
1033 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
1036 sc->amr_maxdrives = 8;
1037 sc->amr_maxchan = ae->ae_adapter.aa_channels;
1038 sc->amr_maxio = ae->ae_adapter.aa_maxio;
1043 * Mark remaining drives as unused.
1045 for (; ldrv < AMR_MAXLD; ldrv++)
1046 sc->amr_drive[ldrv].al_size = 0xffffffff;
1049 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
1050 * the controller's reported value, and lockups have been seen when we do.
1052 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
1057 /********************************************************************************
1058 * Run a generic enquiry-style command.
1061 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual, int *status)
1063 struct amr_command *ac;
1073 /* get ourselves a command buffer */
1074 mtx_lock(&sc->amr_list_lock);
1075 ac = amr_alloccmd(sc);
1076 mtx_unlock(&sc->amr_list_lock);
1079 /* allocate the response structure */
1080 if ((result = malloc(bufsize, M_AMR, M_ZERO|M_NOWAIT)) == NULL)
1082 /* set command flags */
1084 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAIN;
1086 /* point the command at our data */
1087 ac->ac_data = result;
1088 ac->ac_length = bufsize;
1090 /* build the command proper */
1091 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
1097 /* can't assume that interrupts are going to work here, so play it safe */
1098 if (sc->amr_poll_command(ac))
1100 error = ac->ac_status;
1101 *status = ac->ac_status;
1104 mtx_lock(&sc->amr_list_lock);
1107 mtx_unlock(&sc->amr_list_lock);
1108 if ((error != 0) && (result != NULL)) {
1109 free(result, M_AMR);
1115 /********************************************************************************
1116 * Flush the controller's internal cache, return status.
1119 amr_flush(struct amr_softc *sc)
1121 struct amr_command *ac;
1124 /* get ourselves a command buffer */
1126 mtx_lock(&sc->amr_list_lock);
1127 ac = amr_alloccmd(sc);
1128 mtx_unlock(&sc->amr_list_lock);
1131 /* set command flags */
1132 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1134 /* build the command proper */
1135 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
1137 /* we have to poll, as the system may be going down or otherwise damaged */
1138 if (sc->amr_poll_command(ac))
1140 error = ac->ac_status;
1143 mtx_lock(&sc->amr_list_lock);
1146 mtx_unlock(&sc->amr_list_lock);
1150 /********************************************************************************
1151 * Detect extented cdb >> greater than 10 byte cdb support
1152 * returns '1' means this support exist
1153 * returns '0' means this support doesn't exist
1156 amr_support_ext_cdb(struct amr_softc *sc)
1158 struct amr_command *ac;
1162 /* get ourselves a command buffer */
1164 mtx_lock(&sc->amr_list_lock);
1165 ac = amr_alloccmd(sc);
1166 mtx_unlock(&sc->amr_list_lock);
1169 /* set command flags */
1170 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1172 /* build the command proper */
1173 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
1178 /* we have to poll, as the system may be going down or otherwise damaged */
1179 if (sc->amr_poll_command(ac))
1181 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
1186 mtx_lock(&sc->amr_list_lock);
1189 mtx_unlock(&sc->amr_list_lock);
1193 /********************************************************************************
1194 * Try to find I/O work for the controller from one or more of the work queues.
1196 * We make the assumption that if the controller is not ready to take a command
1197 * at some given time, it will generate an interrupt at some later time when
1201 amr_startio(struct amr_softc *sc)
1203 struct amr_command *ac;
1205 /* spin until something prevents us from doing any work */
1208 /* Don't bother to queue commands no bounce buffers are available. */
1209 if (sc->amr_state & AMR_STATE_QUEUE_FRZN)
1212 /* try to get a ready command */
1213 ac = amr_dequeue_ready(sc);
1215 /* if that failed, build a command from a bio */
1217 (void)amr_bio_command(sc, &ac);
1219 /* if that failed, build a command from a ccb */
1220 if ((ac == NULL) && (sc->amr_cam_command != NULL))
1221 sc->amr_cam_command(sc, &ac);
1223 /* if we don't have anything to do, give up */
1227 /* try to give the command to the controller; if this fails save it for later and give up */
1228 if (amr_start(ac)) {
1229 debug(2, "controller busy, command deferred");
1230 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
1236 /********************************************************************************
1237 * Handle completion of an I/O command.
1240 amr_completeio(struct amr_command *ac)
1242 struct amrd_softc *sc = ac->ac_bio->bio_disk->d_drv1;
1243 static struct timeval lastfail;
1246 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
1247 ac->ac_bio->bio_error = EIO;
1248 ac->ac_bio->bio_flags |= BIO_ERROR;
1250 if (ppsratecheck(&lastfail, &curfail, 1))
1251 device_printf(sc->amrd_dev, "I/O error - 0x%x\n", ac->ac_status);
1252 /* amr_printcommand(ac);*/
1254 amrd_intr(ac->ac_bio);
1255 mtx_lock(&ac->ac_sc->amr_list_lock);
1257 mtx_unlock(&ac->ac_sc->amr_list_lock);
1260 /********************************************************************************
1261 ********************************************************************************
1263 ********************************************************************************
1264 ********************************************************************************/
1266 /********************************************************************************
1267 * Convert a bio off the top of the bio queue into a command.
1270 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
1272 struct amr_command *ac;
1273 struct amrd_softc *amrd;
1284 if ((ac = amr_alloccmd(sc)) == NULL)
1287 /* get a bio to work on */
1288 if ((bio = amr_dequeue_bio(sc)) == NULL) {
1293 /* connect the bio to the command */
1294 ac->ac_complete = amr_completeio;
1296 ac->ac_data = bio->bio_data;
1297 ac->ac_length = bio->bio_bcount;
1299 switch (bio->bio_cmd) {
1301 ac->ac_flags |= AMR_CMD_DATAIN;
1302 if (AMR_IS_SG64(sc)) {
1303 cmd = AMR_CMD_LREAD64;
1304 ac->ac_flags |= AMR_CMD_SG64;
1306 cmd = AMR_CMD_LREAD;
1309 ac->ac_flags |= AMR_CMD_DATAOUT;
1310 if (AMR_IS_SG64(sc)) {
1311 cmd = AMR_CMD_LWRITE64;
1312 ac->ac_flags |= AMR_CMD_SG64;
1314 cmd = AMR_CMD_LWRITE;
1317 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1318 cmd = AMR_CMD_FLUSH;
1321 amrd = (struct amrd_softc *)bio->bio_disk->d_drv1;
1322 driveno = amrd->amrd_drive - sc->amr_drive;
1323 blkcount = (bio->bio_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE;
1325 ac->ac_mailbox.mb_command = cmd;
1326 if (bio->bio_cmd & (BIO_READ|BIO_WRITE)) {
1327 ac->ac_mailbox.mb_blkcount = blkcount;
1328 ac->ac_mailbox.mb_lba = bio->bio_pblkno;
1329 if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size) {
1330 device_printf(sc->amr_dev,
1331 "I/O beyond end of unit (%lld,%d > %lu)\n",
1332 (long long)bio->bio_pblkno, blkcount,
1333 (u_long)sc->amr_drive[driveno].al_size);
1336 ac->ac_mailbox.mb_drive = driveno;
1337 if (sc->amr_state & AMR_STATE_REMAP_LD)
1338 ac->ac_mailbox.mb_drive |= 0x80;
1340 /* we fill in the s/g related data when the command is mapped */
1347 /********************************************************************************
1348 * Take a command, submit it to the controller and sleep until it completes
1349 * or fails. Interrupts must be enabled, returns nonzero on error.
1352 amr_wait_command(struct amr_command *ac)
1355 struct amr_softc *sc = ac->ac_sc;
1359 ac->ac_complete = NULL;
1360 ac->ac_flags |= AMR_CMD_SLEEP;
1361 if ((error = amr_start(ac)) != 0) {
1365 while ((ac->ac_flags & AMR_CMD_BUSY) && (error != EWOULDBLOCK)) {
1366 error = msleep(ac,&sc->amr_list_lock, PRIBIO, "amrwcmd", 0);
1372 /********************************************************************************
1373 * Take a command, submit it to the controller and busy-wait for it to return.
1374 * Returns nonzero on error. Can be safely called with interrupts enabled.
1377 amr_std_poll_command(struct amr_command *ac)
1379 struct amr_softc *sc = ac->ac_sc;
1384 ac->ac_complete = NULL;
1385 if ((error = amr_start(ac)) != 0)
1391 * Poll for completion, although the interrupt handler may beat us to it.
1392 * Note that the timeout here is somewhat arbitrary.
1396 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
1397 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
1400 /* XXX the slot is now marked permanently busy */
1402 device_printf(sc->amr_dev, "polled command timeout\n");
1408 amr_setup_polled_dmamap(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1410 struct amr_command *ac = arg;
1411 struct amr_softc *sc = ac->ac_sc;
1415 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1416 ac->ac_status = AMR_STATUS_ABORTED;
1420 amr_setup_sg(arg, segs, nsegs, err);
1422 /* for AMR_CMD_CONFIG Read/Write the s/g count goes elsewhere */
1423 mb_channel = ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_channel;
1424 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG &&
1425 ((mb_channel == AMR_CONFIG_READ_NVRAM_CONFIG) ||
1426 (mb_channel == AMR_CONFIG_WRITE_NVRAM_CONFIG)))
1427 ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param = ac->ac_nsegments;
1429 ac->ac_mailbox.mb_nsgelem = ac->ac_nsegments;
1430 ac->ac_mailbox.mb_physaddr = ac->ac_mb_physaddr;
1431 if (AC_IS_SG64(ac)) {
1433 ac->ac_sg64_lo = ac->ac_sgbusaddr;
1436 sc->amr_poll_command1(sc, ac);
1439 /********************************************************************************
1440 * Take a command, submit it to the controller and busy-wait for it to return.
1441 * Returns nonzero on error. Can be safely called with interrupts enabled.
1444 amr_quartz_poll_command(struct amr_command *ac)
1446 struct amr_softc *sc = ac->ac_sc;
1453 if (AC_IS_SG64(ac)) {
1454 ac->ac_tag = sc->amr_buffer64_dmat;
1455 ac->ac_datamap = ac->ac_dma64map;
1457 ac->ac_tag = sc->amr_buffer_dmat;
1458 ac->ac_datamap = ac->ac_dmamap;
1461 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1462 if (ac->ac_data != 0) {
1463 if (bus_dmamap_load(ac->ac_tag, ac->ac_datamap, ac->ac_data,
1464 ac->ac_length, amr_setup_polled_dmamap, ac, BUS_DMA_NOWAIT) != 0) {
1468 error = amr_quartz_poll_command1(sc, ac);
1475 amr_quartz_poll_command1(struct amr_softc *sc, struct amr_command *ac)
1479 mtx_lock(&sc->amr_hw_lock);
1480 if ((sc->amr_state & AMR_STATE_INTEN) == 0) {
1482 while (sc->amr_busyslots) {
1483 msleep(sc, &sc->amr_hw_lock, PRIBIO | PCATCH, "amrpoll", hz);
1489 if(sc->amr_busyslots) {
1490 device_printf(sc->amr_dev, "adapter is busy\n");
1491 mtx_unlock(&sc->amr_hw_lock);
1492 if (ac->ac_data != NULL) {
1493 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1500 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1502 /* clear the poll/ack fields in the mailbox */
1503 sc->amr_mailbox->mb_ident = 0xFE;
1504 sc->amr_mailbox->mb_nstatus = 0xFF;
1505 sc->amr_mailbox->mb_status = 0xFF;
1506 sc->amr_mailbox->mb_poll = 0;
1507 sc->amr_mailbox->mb_ack = 0;
1508 sc->amr_mailbox->mb_busy = 1;
1510 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1512 while(sc->amr_mailbox->mb_nstatus == 0xFF)
1514 while(sc->amr_mailbox->mb_status == 0xFF)
1516 ac->ac_status=sc->amr_mailbox->mb_status;
1517 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1518 while(sc->amr_mailbox->mb_poll != 0x77)
1520 sc->amr_mailbox->mb_poll = 0;
1521 sc->amr_mailbox->mb_ack = 0x77;
1523 /* acknowledge that we have the commands */
1524 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1525 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1527 mtx_unlock(&sc->amr_hw_lock);
1529 /* unmap the command's data buffer */
1530 if (ac->ac_flags & AMR_CMD_DATAIN) {
1531 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, BUS_DMASYNC_POSTREAD);
1533 if (ac->ac_flags & AMR_CMD_DATAOUT) {
1534 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, BUS_DMASYNC_POSTWRITE);
1536 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1542 amr_freeslot(struct amr_command *ac)
1544 struct amr_softc *sc = ac->ac_sc;
1550 if (sc->amr_busycmd[slot] == NULL)
1551 panic("amr: slot %d not busy?\n", slot);
1553 sc->amr_busycmd[slot] = NULL;
1554 atomic_subtract_int(&sc->amr_busyslots, 1);
1559 /********************************************************************************
1560 * Map/unmap (ac)'s data in the controller's addressable space as required.
1562 * These functions may be safely called multiple times on a given command.
1565 amr_setup_sg(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1567 struct amr_command *ac = (struct amr_command *)arg;
1568 struct amr_sgentry *sg;
1569 struct amr_sg64entry *sg64;
1574 /* get base address of s/g table */
1575 sg = ac->ac_sg.sg32;
1576 sg64 = ac->ac_sg.sg64;
1578 if (AC_IS_SG64(ac)) {
1579 ac->ac_nsegments = nsegments;
1580 ac->ac_mb_physaddr = 0xffffffff;
1581 for (i = 0; i < nsegments; i++, sg64++) {
1582 sg64->sg_addr = segs[i].ds_addr;
1583 sg64->sg_count = segs[i].ds_len;
1586 /* decide whether we need to populate the s/g table */
1587 if (nsegments < 2) {
1588 ac->ac_nsegments = 0;
1589 ac->ac_mb_physaddr = segs[0].ds_addr;
1591 ac->ac_nsegments = nsegments;
1592 ac->ac_mb_physaddr = ac->ac_sgbusaddr;
1593 for (i = 0; i < nsegments; i++, sg++) {
1594 sg->sg_addr = segs[i].ds_addr;
1595 sg->sg_count = segs[i].ds_len;
1601 if (ac->ac_flags & AMR_CMD_DATAIN)
1602 flags |= BUS_DMASYNC_PREREAD;
1603 if (ac->ac_flags & AMR_CMD_DATAOUT)
1604 flags |= BUS_DMASYNC_PREWRITE;
1605 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, flags);
1606 ac->ac_flags |= AMR_CMD_MAPPED;
1610 amr_setup_data(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1612 struct amr_command *ac = arg;
1613 struct amr_softc *sc = ac->ac_sc;
1617 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1622 amr_setup_sg(arg, segs, nsegs, err);
1624 /* for AMR_CMD_CONFIG Read/Write the s/g count goes elsewhere */
1625 mb_channel = ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_channel;
1626 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG &&
1627 ((mb_channel == AMR_CONFIG_READ_NVRAM_CONFIG) ||
1628 (mb_channel == AMR_CONFIG_WRITE_NVRAM_CONFIG)))
1629 ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param = ac->ac_nsegments;
1631 ac->ac_mailbox.mb_nsgelem = ac->ac_nsegments;
1632 ac->ac_mailbox.mb_physaddr = ac->ac_mb_physaddr;
1633 if (AC_IS_SG64(ac)) {
1635 ac->ac_sg64_lo = ac->ac_sgbusaddr;
1638 if (sc->amr_submit_command(ac) == EBUSY) {
1640 amr_requeue_ready(ac);
1645 amr_setup_ccb(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1647 struct amr_command *ac = arg;
1648 struct amr_softc *sc = ac->ac_sc;
1649 struct amr_passthrough *ap = &ac->ac_ccb->ccb_pthru;
1650 struct amr_ext_passthrough *aep = &ac->ac_ccb->ccb_epthru;
1653 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1658 /* Set up the mailbox portion of the command to point at the ccb */
1659 ac->ac_mailbox.mb_nsgelem = 0;
1660 ac->ac_mailbox.mb_physaddr = ac->ac_ccb_busaddr;
1662 amr_setup_sg(arg, segs, nsegs, err);
1664 switch (ac->ac_mailbox.mb_command) {
1665 case AMR_CMD_EXTPASS:
1666 aep->ap_no_sg_elements = ac->ac_nsegments;
1667 aep->ap_data_transfer_address = ac->ac_mb_physaddr;
1670 ap->ap_no_sg_elements = ac->ac_nsegments;
1671 ap->ap_data_transfer_address = ac->ac_mb_physaddr;
1674 panic("Unknown ccb command");
1677 if (sc->amr_submit_command(ac) == EBUSY) {
1679 amr_requeue_ready(ac);
1684 amr_mapcmd(struct amr_command *ac)
1686 bus_dmamap_callback_t *cb;
1687 struct amr_softc *sc = ac->ac_sc;
1691 if (AC_IS_SG64(ac)) {
1692 ac->ac_tag = sc->amr_buffer64_dmat;
1693 ac->ac_datamap = ac->ac_dma64map;
1695 ac->ac_tag = sc->amr_buffer_dmat;
1696 ac->ac_datamap = ac->ac_dmamap;
1699 if (ac->ac_flags & AMR_CMD_CCB)
1702 cb = amr_setup_data;
1704 /* if the command involves data at all, and hasn't been mapped */
1705 if ((ac->ac_flags & AMR_CMD_MAPPED) == 0 && (ac->ac_data != NULL)) {
1706 /* map the data buffers into bus space and build the s/g list */
1707 if (bus_dmamap_load(ac->ac_tag, ac->ac_datamap, ac->ac_data,
1708 ac->ac_length, cb, ac, 0) == EINPROGRESS) {
1709 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
1712 if (sc->amr_submit_command(ac) == EBUSY) {
1714 amr_requeue_ready(ac);
1722 amr_unmapcmd(struct amr_command *ac)
1728 /* if the command involved data at all and was mapped */
1729 if (ac->ac_flags & AMR_CMD_MAPPED) {
1731 if (ac->ac_data != NULL) {
1734 if (ac->ac_flags & AMR_CMD_DATAIN)
1735 flag |= BUS_DMASYNC_POSTREAD;
1736 if (ac->ac_flags & AMR_CMD_DATAOUT)
1737 flag |= BUS_DMASYNC_POSTWRITE;
1739 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, flag);
1740 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1743 ac->ac_flags &= ~AMR_CMD_MAPPED;
1748 amr_abort_load(struct amr_command *ac)
1751 struct amr_softc *sc = ac->ac_sc;
1753 mtx_assert(&sc->amr_list_lock, MA_OWNED);
1755 ac->ac_status = AMR_STATUS_ABORTED;
1756 amr_init_qhead(&head);
1757 amr_enqueue_completed(ac, &head);
1759 mtx_unlock(&sc->amr_list_lock);
1760 amr_complete(sc, &head);
1761 mtx_lock(&sc->amr_list_lock);
1764 /********************************************************************************
1765 * Take a command and give it to the controller, returns 0 if successful, or
1766 * EBUSY if the command should be retried later.
1769 amr_start(struct amr_command *ac)
1771 struct amr_softc *sc;
1777 /* mark command as busy so that polling consumer can tell */
1779 ac->ac_flags |= AMR_CMD_BUSY;
1781 /* get a command slot (freed in amr_done) */
1783 if (sc->amr_busycmd[slot] != NULL)
1784 panic("amr: slot %d busy?\n", slot);
1785 sc->amr_busycmd[slot] = ac;
1786 atomic_add_int(&sc->amr_busyslots, 1);
1788 /* Now we have a slot, we can map the command (unmapped in amr_complete). */
1789 if ((error = amr_mapcmd(ac)) == ENOMEM) {
1791 * Memroy resources are short, so free the slot and let this be tried
1800 /********************************************************************************
1801 * Extract one or more completed commands from the controller (sc)
1803 * Returns nonzero if any commands on the work queue were marked as completed.
1807 amr_done(struct amr_softc *sc)
1810 struct amr_command *ac;
1811 struct amr_mailbox mbox;
1816 /* See if there's anything for us to do */
1818 amr_init_qhead(&head);
1820 /* loop collecting completed commands */
1822 /* poll for a completed command's identifier and status */
1823 if (sc->amr_get_work(sc, &mbox)) {
1826 /* iterate over completed commands in this result */
1827 for (i = 0; i < mbox.mb_nstatus; i++) {
1828 /* get pointer to busy command */
1829 idx = mbox.mb_completed[i] - 1;
1830 ac = sc->amr_busycmd[idx];
1832 /* really a busy command? */
1835 /* pull the command from the busy index */
1838 /* save status for later use */
1839 ac->ac_status = mbox.mb_status;
1840 amr_enqueue_completed(ac, &head);
1841 debug(3, "completed command with status %x", mbox.mb_status);
1843 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1847 break; /* no work */
1850 /* handle completion and timeouts */
1851 amr_complete(sc, &head);
1856 /********************************************************************************
1857 * Do completion processing on done commands on (sc)
1861 amr_complete(void *context, ac_qhead_t *head)
1863 struct amr_softc *sc = (struct amr_softc *)context;
1864 struct amr_command *ac;
1868 /* pull completed commands off the queue */
1870 ac = amr_dequeue_completed(sc, head);
1874 /* unmap the command's data buffer */
1878 * Is there a completion handler?
1880 if (ac->ac_complete != NULL) {
1881 /* unbusy the command */
1882 ac->ac_flags &= ~AMR_CMD_BUSY;
1883 ac->ac_complete(ac);
1886 * Is someone sleeping on this one?
1889 mtx_lock(&sc->amr_list_lock);
1890 ac->ac_flags &= ~AMR_CMD_BUSY;
1891 if (ac->ac_flags & AMR_CMD_SLEEP) {
1892 /* unbusy the command */
1895 mtx_unlock(&sc->amr_list_lock);
1898 if(!sc->amr_busyslots) {
1903 mtx_lock(&sc->amr_list_lock);
1904 sc->amr_state &= ~AMR_STATE_QUEUE_FRZN;
1906 mtx_unlock(&sc->amr_list_lock);
1909 /********************************************************************************
1910 ********************************************************************************
1911 Command Buffer Management
1912 ********************************************************************************
1913 ********************************************************************************/
1915 /********************************************************************************
1916 * Get a new command buffer.
1918 * This may return NULL in low-memory cases.
1920 * If possible, we recycle a command buffer that's been used before.
1922 struct amr_command *
1923 amr_alloccmd(struct amr_softc *sc)
1925 struct amr_command *ac;
1929 ac = amr_dequeue_free(sc);
1931 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
1935 /* clear out significant fields */
1937 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1941 ac->ac_complete = NULL;
1944 ac->ac_datamap = NULL;
1948 /********************************************************************************
1949 * Release a command buffer for recycling.
1952 amr_releasecmd(struct amr_command *ac)
1956 amr_enqueue_free(ac);
1959 /********************************************************************************
1960 * Allocate a new command cluster and initialise it.
1963 amr_alloccmd_cluster(struct amr_softc *sc)
1965 struct amr_command_cluster *acc;
1966 struct amr_command *ac;
1970 * If we haven't found the real limit yet, let us have a couple of
1971 * commands in order to be able to probe.
1973 if (sc->amr_maxio == 0)
1976 if (sc->amr_nextslot > sc->amr_maxio)
1978 acc = malloc(AMR_CMD_CLUSTERSIZE, M_AMR, M_NOWAIT | M_ZERO);
1980 nextslot = sc->amr_nextslot;
1981 mtx_lock(&sc->amr_list_lock);
1982 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1983 mtx_unlock(&sc->amr_list_lock);
1984 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1985 ac = &acc->acc_command[i];
1987 ac->ac_slot = nextslot;
1990 * The SG table for each slot is a fixed size and is assumed to
1991 * to hold 64-bit s/g objects when the driver is configured to do
1992 * 64-bit DMA. 32-bit DMA commands still use the same table, but
1993 * cast down to 32-bit objects.
1995 if (AMR_IS_SG64(sc)) {
1996 ac->ac_sgbusaddr = sc->amr_sgbusaddr +
1997 (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sg64entry));
1998 ac->ac_sg.sg64 = sc->amr_sg64table + (ac->ac_slot * AMR_NSEG);
2000 ac->ac_sgbusaddr = sc->amr_sgbusaddr +
2001 (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
2002 ac->ac_sg.sg32 = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
2005 ac->ac_ccb = sc->amr_ccb + ac->ac_slot;
2006 ac->ac_ccb_busaddr = sc->amr_ccb_busaddr +
2007 (ac->ac_slot * sizeof(union amr_ccb));
2009 if (bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap))
2011 if (AMR_IS_SG64(sc) &&
2012 (bus_dmamap_create(sc->amr_buffer64_dmat, 0,&ac->ac_dma64map)))
2015 if (++nextslot > sc->amr_maxio)
2018 sc->amr_nextslot = nextslot;
2022 /********************************************************************************
2023 * Free a command cluster
2026 amr_freecmd_cluster(struct amr_command_cluster *acc)
2028 struct amr_softc *sc = acc->acc_command[0].ac_sc;
2031 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
2032 if (acc->acc_command[i].ac_sc == NULL)
2034 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
2035 if (AMR_IS_SG64(sc))
2036 bus_dmamap_destroy(sc->amr_buffer64_dmat, acc->acc_command[i].ac_dma64map);
2041 /********************************************************************************
2042 ********************************************************************************
2043 Interface-specific Shims
2044 ********************************************************************************
2045 ********************************************************************************/
2047 /********************************************************************************
2048 * Tell the controller that the mailbox contains a valid command
2051 amr_quartz_submit_command(struct amr_command *ac)
2053 struct amr_softc *sc = ac->ac_sc;
2054 static struct timeval lastfail;
2058 mtx_lock(&sc->amr_hw_lock);
2059 while (sc->amr_mailbox->mb_busy && (i++ < 10)) {
2061 /* This is a no-op read that flushes pending mailbox updates */
2064 if (sc->amr_mailbox->mb_busy) {
2065 mtx_unlock(&sc->amr_hw_lock);
2066 if (ac->ac_retries++ > 1000) {
2067 if (ppsratecheck(&lastfail, &curfail, 1))
2068 device_printf(sc->amr_dev, "Too many retries on command %p. "
2069 "Controller is likely dead\n", ac);
2076 * Save the slot number so that we can locate this command when complete.
2077 * Note that ident = 0 seems to be special, so we don't use it.
2079 ac->ac_mailbox.mb_ident = ac->ac_slot + 1; /* will be coppied into mbox */
2080 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, 14);
2081 sc->amr_mailbox->mb_busy = 1;
2082 sc->amr_mailbox->mb_poll = 0;
2083 sc->amr_mailbox->mb_ack = 0;
2084 sc->amr_mailbox64->sg64_hi = ac->ac_sg64_hi;
2085 sc->amr_mailbox64->sg64_lo = ac->ac_sg64_lo;
2087 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
2088 mtx_unlock(&sc->amr_hw_lock);
2093 amr_std_submit_command(struct amr_command *ac)
2095 struct amr_softc *sc = ac->ac_sc;
2096 static struct timeval lastfail;
2099 mtx_lock(&sc->amr_hw_lock);
2100 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG) {
2101 mtx_unlock(&sc->amr_hw_lock);
2102 if (ac->ac_retries++ > 1000) {
2103 if (ppsratecheck(&lastfail, &curfail, 1))
2104 device_printf(sc->amr_dev, "Too many retries on command %p. "
2105 "Controller is likely dead\n", ac);
2112 * Save the slot number so that we can locate this command when complete.
2113 * Note that ident = 0 seems to be special, so we don't use it.
2115 ac->ac_mailbox.mb_ident = ac->ac_slot + 1; /* will be coppied into mbox */
2116 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, 14);
2117 sc->amr_mailbox->mb_busy = 1;
2118 sc->amr_mailbox->mb_poll = 0;
2119 sc->amr_mailbox->mb_ack = 0;
2121 AMR_SPOST_COMMAND(sc);
2122 mtx_unlock(&sc->amr_hw_lock);
2126 /********************************************************************************
2127 * Claim any work that the controller has completed; acknowledge completion,
2128 * save details of the completion in (mbsave)
2131 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
2136 u_int8_t completed[46];
2142 /* work waiting for us? */
2143 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
2145 /* acknowledge interrupt */
2146 AMR_QPUT_ODB(sc, AMR_QODB_READY);
2148 while ((nstatus = sc->amr_mailbox->mb_nstatus) == 0xff)
2150 sc->amr_mailbox->mb_nstatus = 0xff;
2152 /* wait until fw wrote out all completions */
2153 for (i = 0; i < nstatus; i++) {
2154 while ((completed[i] = sc->amr_mailbox->mb_completed[i]) == 0xff)
2156 sc->amr_mailbox->mb_completed[i] = 0xff;
2159 /* Save information for later processing */
2160 mbsave->mb_nstatus = nstatus;
2161 mbsave->mb_status = sc->amr_mailbox->mb_status;
2162 sc->amr_mailbox->mb_status = 0xff;
2164 for (i = 0; i < nstatus; i++)
2165 mbsave->mb_completed[i] = completed[i];
2167 /* acknowledge that we have the commands */
2168 AMR_QPUT_IDB(sc, AMR_QIDB_ACK);
2171 #ifndef AMR_QUARTZ_GOFASTER
2173 * This waits for the controller to notice that we've taken the
2174 * command from it. It's very inefficient, and we shouldn't do it,
2175 * but if we remove this code, we stop completing commands under
2178 * Peter J says we shouldn't do this. The documentation says we
2179 * should. Who is right?
2181 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
2182 ; /* XXX aiee! what if it dies? */
2186 worked = 1; /* got some work */
2193 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
2202 /* check for valid interrupt status */
2203 istat = AMR_SGET_ISTAT(sc);
2204 if ((istat & AMR_SINTR_VALID) != 0) {
2205 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
2207 /* save mailbox, which contains a list of completed commands */
2208 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
2210 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
2217 /********************************************************************************
2218 * Notify the controller of the mailbox location.
2221 amr_std_attach_mailbox(struct amr_softc *sc)
2224 /* program the mailbox physical address */
2225 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
2226 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
2227 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
2228 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
2229 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
2231 /* clear any outstanding interrupt and enable interrupts proper */
2232 AMR_SACK_INTERRUPT(sc);
2233 AMR_SENABLE_INTR(sc);
2236 #ifdef AMR_BOARD_INIT
2237 /********************************************************************************
2238 * Initialise the controller
2241 amr_quartz_init(struct amr_softc *sc)
2243 int status, ostatus;
2245 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
2250 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
2251 if (status != ostatus) {
2252 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
2256 case AMR_QINIT_NOMEM:
2259 case AMR_QINIT_SCAN:
2260 /* XXX we could print channel/target here */
2268 amr_std_init(struct amr_softc *sc)
2270 int status, ostatus;
2272 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
2277 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
2278 if (status != ostatus) {
2279 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
2283 case AMR_SINIT_NOMEM:
2286 case AMR_SINIT_INPROG:
2287 /* XXX we could print channel/target here? */
2295 /********************************************************************************
2296 ********************************************************************************
2298 ********************************************************************************
2299 ********************************************************************************/
2301 /********************************************************************************
2302 * Identify the controller and print some information about it.
2305 amr_describe_controller(struct amr_softc *sc)
2307 struct amr_prodinfo *ap;
2308 struct amr_enquiry *ae;
2313 * Try to get 40LD product info, which tells us what the card is labelled as.
2315 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0, &status)) != NULL) {
2316 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
2317 ap->ap_product, ap->ap_firmware, ap->ap_bios,
2325 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
2327 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0, &status)) != NULL) {
2328 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
2330 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0, &status)) != NULL) {
2333 * Try to work it out based on the PCI signatures.
2335 switch (pci_get_device(sc->amr_dev)) {
2337 prod = "Series 428";
2340 prod = "Series 434";
2343 prod = "unknown controller";
2347 device_printf(sc->amr_dev, "<unsupported controller>\n");
2352 * HP NetRaid controllers have a special encoding of the firmware and
2353 * BIOS versions. The AMI version seems to have it as strings whereas
2354 * the HP version does it with a leading uppercase character and two
2358 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
2359 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
2360 ae->ae_adapter.aa_firmware[1] < ' ' &&
2361 ae->ae_adapter.aa_firmware[0] < ' ' &&
2362 ae->ae_adapter.aa_bios[2] >= 'A' &&
2363 ae->ae_adapter.aa_bios[2] <= 'Z' &&
2364 ae->ae_adapter.aa_bios[1] < ' ' &&
2365 ae->ae_adapter.aa_bios[0] < ' ') {
2367 /* this looks like we have an HP NetRaid version of the MegaRaid */
2369 if(ae->ae_signature == AMR_SIG_438) {
2370 /* the AMI 438 is a NetRaid 3si in HP-land */
2371 prod = "HP NetRaid 3si";
2374 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
2375 prod, ae->ae_adapter.aa_firmware[2],
2376 ae->ae_adapter.aa_firmware[1],
2377 ae->ae_adapter.aa_firmware[0],
2378 ae->ae_adapter.aa_bios[2],
2379 ae->ae_adapter.aa_bios[1],
2380 ae->ae_adapter.aa_bios[0],
2381 ae->ae_adapter.aa_memorysize);
2383 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
2384 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
2385 ae->ae_adapter.aa_memorysize);
2391 amr_dump_blocks(struct amr_softc *sc, int unit, u_int32_t lba, void *data, int blks)
2393 struct amr_command *ac;
2398 sc->amr_state |= AMR_STATE_INTEN;
2400 /* get ourselves a command buffer */
2401 if ((ac = amr_alloccmd(sc)) == NULL)
2403 /* set command flags */
2404 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
2406 /* point the command at our data */
2408 ac->ac_length = blks * AMR_BLKSIZE;
2410 /* build the command proper */
2411 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
2412 ac->ac_mailbox.mb_blkcount = blks;
2413 ac->ac_mailbox.mb_lba = lba;
2414 ac->ac_mailbox.mb_drive = unit;
2416 /* can't assume that interrupts are going to work here, so play it safe */
2417 if (sc->amr_poll_command(ac))
2419 error = ac->ac_status;
2425 sc->amr_state &= ~AMR_STATE_INTEN;
2432 /********************************************************************************
2433 * Print the command (ac) in human-readable format
2437 amr_printcommand(struct amr_command *ac)
2439 struct amr_softc *sc = ac->ac_sc;
2440 struct amr_sgentry *sg;
2443 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
2444 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
2445 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
2446 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
2447 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
2448 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
2449 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
2450 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
2452 /* get base address of s/g table */
2453 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
2454 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
2455 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);