2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1999,2000 Michael Smith
5 * Copyright (c) 2000 BSDi
6 * Copyright (c) 2005 Scott Long
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Copyright (c) 2002 Eric Moore
32 * Copyright (c) 2002, 2004 LSI Logic Corporation
33 * All rights reserved.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. The party using or redistributing the source code and binary forms
44 * agrees to the disclaimer below and the terms and conditions set forth
47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 #include <sys/cdefs.h>
61 __FBSDID("$FreeBSD$");
64 * Driver for the AMI MegaRaid family of controllers.
67 #include <sys/param.h>
68 #include <sys/systm.h>
69 #include <sys/malloc.h>
70 #include <sys/kernel.h>
72 #include <sys/sysctl.h>
79 #include <machine/bus.h>
80 #include <machine/cpu.h>
81 #include <machine/resource.h>
84 #include <dev/pci/pcireg.h>
85 #include <dev/pci/pcivar.h>
87 #include <dev/amr/amrio.h>
88 #include <dev/amr/amrreg.h>
89 #include <dev/amr/amrvar.h>
90 #define AMR_DEFINE_TABLES
91 #include <dev/amr/amr_tables.h>
93 SYSCTL_NODE(_hw, OID_AUTO, amr, CTLFLAG_RD, 0, "AMR driver parameters");
95 static d_open_t amr_open;
96 static d_close_t amr_close;
97 static d_ioctl_t amr_ioctl;
99 static struct cdevsw amr_cdevsw = {
100 .d_version = D_VERSION,
101 .d_flags = D_NEEDGIANT,
103 .d_close = amr_close,
104 .d_ioctl = amr_ioctl,
108 int linux_no_adapter = 0;
110 * Initialisation, bus interface.
112 static void amr_startup(void *arg);
117 static int amr_query_controller(struct amr_softc *sc);
118 static void *amr_enquiry(struct amr_softc *sc, size_t bufsize,
119 u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual, int *status);
120 static void amr_completeio(struct amr_command *ac);
121 static int amr_support_ext_cdb(struct amr_softc *sc);
124 * Command buffer allocation.
126 static void amr_alloccmd_cluster(struct amr_softc *sc);
127 static void amr_freecmd_cluster(struct amr_command_cluster *acc);
130 * Command processing.
132 static int amr_bio_command(struct amr_softc *sc, struct amr_command **acp);
133 static int amr_wait_command(struct amr_command *ac) __unused;
134 static int amr_mapcmd(struct amr_command *ac);
135 static void amr_unmapcmd(struct amr_command *ac);
136 static int amr_start(struct amr_command *ac);
137 static void amr_complete(void *context, ac_qhead_t *head);
138 static void amr_setup_sg(void *arg, bus_dma_segment_t *segs, int nsegments, int error);
139 static void amr_setup_data(void *arg, bus_dma_segment_t *segs, int nsegments, int error);
140 static void amr_setup_ccb(void *arg, bus_dma_segment_t *segs, int nsegments, int error);
141 static void amr_abort_load(struct amr_command *ac);
144 * Interface-specific shims
146 static int amr_quartz_submit_command(struct amr_command *ac);
147 static int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
148 static int amr_quartz_poll_command(struct amr_command *ac);
149 static int amr_quartz_poll_command1(struct amr_softc *sc, struct amr_command *ac);
151 static int amr_std_submit_command(struct amr_command *ac);
152 static int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave);
153 static int amr_std_poll_command(struct amr_command *ac);
154 static void amr_std_attach_mailbox(struct amr_softc *sc);
156 #ifdef AMR_BOARD_INIT
157 static int amr_quartz_init(struct amr_softc *sc);
158 static int amr_std_init(struct amr_softc *sc);
164 static void amr_describe_controller(struct amr_softc *sc);
167 static void amr_printcommand(struct amr_command *ac);
171 static void amr_init_sysctl(struct amr_softc *sc);
172 static int amr_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t addr,
173 int32_t flag, struct thread *td);
175 static MALLOC_DEFINE(M_AMR, "amr", "AMR memory");
177 /********************************************************************************
178 ********************************************************************************
180 ********************************************************************************
181 ********************************************************************************/
183 /********************************************************************************
184 ********************************************************************************
186 ********************************************************************************
187 ********************************************************************************/
189 /********************************************************************************
190 * Initialise the controller and softc.
193 amr_attach(struct amr_softc *sc)
200 * Initialise per-controller queues.
202 amr_init_qhead(&sc->amr_freecmds);
203 amr_init_qhead(&sc->amr_ready);
204 TAILQ_INIT(&sc->amr_cmd_clusters);
205 bioq_init(&sc->amr_bioq);
207 debug(2, "queue init done");
210 * Configure for this controller type.
212 if (AMR_IS_QUARTZ(sc)) {
213 sc->amr_submit_command = amr_quartz_submit_command;
214 sc->amr_get_work = amr_quartz_get_work;
215 sc->amr_poll_command = amr_quartz_poll_command;
216 sc->amr_poll_command1 = amr_quartz_poll_command1;
218 sc->amr_submit_command = amr_std_submit_command;
219 sc->amr_get_work = amr_std_get_work;
220 sc->amr_poll_command = amr_std_poll_command;
221 amr_std_attach_mailbox(sc);
224 #ifdef AMR_BOARD_INIT
225 if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc)))
230 * Allocate initial commands.
232 amr_alloccmd_cluster(sc);
235 * Quiz controller for features and limits.
237 if (amr_query_controller(sc))
240 debug(2, "controller query complete");
243 * preallocate the remaining commands.
245 while (sc->amr_nextslot < sc->amr_maxio)
246 amr_alloccmd_cluster(sc);
254 * Attach our 'real' SCSI channels to CAM.
256 child = device_add_child(sc->amr_dev, "amrp", -1);
257 sc->amr_pass = child;
259 device_set_softc(child, sc);
260 device_set_desc(child, "SCSI Passthrough Bus");
261 bus_generic_attach(sc->amr_dev);
265 * Create the control device.
267 sc->amr_dev_t = make_dev(&amr_cdevsw, device_get_unit(sc->amr_dev), UID_ROOT, GID_OPERATOR,
268 S_IRUSR | S_IWUSR, "amr%d", device_get_unit(sc->amr_dev));
269 sc->amr_dev_t->si_drv1 = sc;
271 if (device_get_unit(sc->amr_dev) == 0)
272 make_dev_alias(sc->amr_dev_t, "megadev0");
275 * Schedule ourselves to bring the controller up once interrupts are
278 bzero(&sc->amr_ich, sizeof(struct intr_config_hook));
279 sc->amr_ich.ich_func = amr_startup;
280 sc->amr_ich.ich_arg = sc;
281 if (config_intrhook_establish(&sc->amr_ich) != 0) {
282 device_printf(sc->amr_dev, "can't establish configuration hook\n");
287 * Print a little information about the controller.
289 amr_describe_controller(sc);
291 debug(2, "attach complete");
295 /********************************************************************************
296 * Locate disk resources and attach children to them.
299 amr_startup(void *arg)
301 struct amr_softc *sc = (struct amr_softc *)arg;
302 struct amr_logdrive *dr;
307 /* get up-to-date drive information */
308 if (amr_query_controller(sc)) {
309 device_printf(sc->amr_dev, "can't scan controller for drives\n");
313 /* iterate over available drives */
314 for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) {
315 /* are we already attached to this drive? */
316 if (dr->al_disk == 0) {
317 /* generate geometry information */
318 if (dr->al_size > 0x200000) { /* extended translation? */
325 dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors);
327 dr->al_disk = device_add_child(sc->amr_dev, NULL, -1);
328 if (dr->al_disk == 0)
329 device_printf(sc->amr_dev, "device_add_child failed\n");
330 device_set_ivars(dr->al_disk, dr);
334 if ((error = bus_generic_attach(sc->amr_dev)) != 0)
335 device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error);
337 /* mark controller back up */
338 sc->amr_state &= ~AMR_STATE_SHUTDOWN;
340 /* interrupts will be enabled before we do anything more */
341 sc->amr_state |= AMR_STATE_INTEN;
343 /* pull ourselves off the intrhook chain */
344 if (sc->amr_ich.ich_func)
345 config_intrhook_disestablish(&sc->amr_ich);
346 sc->amr_ich.ich_func = NULL;
352 amr_init_sysctl(struct amr_softc *sc)
355 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
356 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
357 OID_AUTO, "allow_volume_configure", CTLFLAG_RW, &sc->amr_allow_vol_config, 0,
359 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
360 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
361 OID_AUTO, "nextslot", CTLFLAG_RD, &sc->amr_nextslot, 0,
363 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
364 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
365 OID_AUTO, "busyslots", CTLFLAG_RD, &sc->amr_busyslots, 0,
367 SYSCTL_ADD_INT(device_get_sysctl_ctx(sc->amr_dev),
368 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->amr_dev)),
369 OID_AUTO, "maxio", CTLFLAG_RD, &sc->amr_maxio, 0,
374 /*******************************************************************************
375 * Free resources associated with a controller instance
378 amr_free(struct amr_softc *sc)
380 struct amr_command_cluster *acc;
382 /* detach from CAM */
383 if (sc->amr_pass != NULL)
384 device_delete_child(sc->amr_dev, sc->amr_pass);
386 /* throw away any command buffers */
387 while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) {
388 TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link);
389 amr_freecmd_cluster(acc);
392 /* destroy control device */
393 if( sc->amr_dev_t != (struct cdev *)NULL)
394 destroy_dev(sc->amr_dev_t);
396 if (mtx_initialized(&sc->amr_hw_lock))
397 mtx_destroy(&sc->amr_hw_lock);
399 if (mtx_initialized(&sc->amr_list_lock))
400 mtx_destroy(&sc->amr_list_lock);
403 /*******************************************************************************
404 * Receive a bio structure from a child device and queue it on a particular
405 * disk resource, then poke the disk resource to start as much work as it can.
408 amr_submit_bio(struct amr_softc *sc, struct bio *bio)
412 mtx_lock(&sc->amr_list_lock);
413 amr_enqueue_bio(sc, bio);
415 mtx_unlock(&sc->amr_list_lock);
419 /********************************************************************************
420 * Accept an open operation on the control device.
423 amr_open(struct cdev *dev, int flags, int fmt, struct thread *td)
425 int unit = dev2unit(dev);
426 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
430 sc->amr_state |= AMR_STATE_OPEN;
436 amr_del_ld(struct amr_softc *sc, int drv_no, int status)
441 sc->amr_state &= ~AMR_STATE_QUEUE_FRZN;
442 sc->amr_state &= ~AMR_STATE_LD_DELETE;
443 sc->amr_state |= AMR_STATE_REMAP_LD;
444 debug(1, "State Set");
447 debug(1, "disk begin destroyed %d",drv_no);
448 if (--amr_disks_registered == 0)
449 cdevsw_remove(&amrddisk_cdevsw);
450 debug(1, "disk begin destroyed success");
456 amr_prepare_ld_delete(struct amr_softc *sc)
460 if (sc->ld_del_supported == 0)
463 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
464 sc->amr_state |= AMR_STATE_LD_DELETE;
466 /* 5 minutes for the all the commands to be flushed.*/
467 tsleep((void *)&sc->ld_del_supported, PCATCH | PRIBIO,"delete_logical_drv",hz * 60 * 1);
468 if ( sc->amr_busyslots )
475 /********************************************************************************
476 * Accept the last close on the control device.
479 amr_close(struct cdev *dev, int flags, int fmt, struct thread *td)
481 int unit = dev2unit(dev);
482 struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit);
486 sc->amr_state &= ~AMR_STATE_OPEN;
490 /********************************************************************************
491 * Handle controller-specific control operations.
494 amr_rescan_drives(struct cdev *dev)
496 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
499 sc->amr_state |= AMR_STATE_REMAP_LD;
500 while (sc->amr_busyslots) {
501 device_printf(sc->amr_dev, "idle controller\n");
505 /* mark ourselves as in-shutdown */
506 sc->amr_state |= AMR_STATE_SHUTDOWN;
508 /* flush controller */
509 device_printf(sc->amr_dev, "flushing cache...");
510 printf("%s\n", amr_flush(sc) ? "failed" : "done");
512 /* delete all our child devices */
513 for(i = 0 ; i < AMR_MAXLD; i++) {
514 if(sc->amr_drive[i].al_disk != 0) {
515 if((error = device_delete_child(sc->amr_dev,
516 sc->amr_drive[i].al_disk)) != 0)
519 sc->amr_drive[i].al_disk = 0;
528 * Bug-for-bug compatibility with Linux!
529 * Some apps will send commands with inlen and outlen set to 0,
530 * even though they expect data to be transferred to them from the
531 * card. Linux accidentally allows this by allocating a 4KB
532 * buffer for the transfer anyways, but it then throws it away
533 * without copying it back to the app.
535 * The amr(4) firmware relies on this feature. In fact, it assumes
536 * the buffer is always a power of 2 up to a max of 64k. There is
537 * also at least one case where it assumes a buffer less than 16k is
538 * greater than 16k. However, forcing all buffers to a size of 32k
539 * causes stalls in the firmware. Force each command smaller than
540 * 64k up to the next power of two except that commands between 8k
541 * and 16k are rounded up to 32k instead of 16k.
544 amr_ioctl_buffer_length(unsigned long len)
551 if (len <= 32 * 1024)
553 if (len <= 64 * 1024)
559 amr_linux_ioctl_int(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag,
562 struct amr_softc *sc = (struct amr_softc *)dev->si_drv1;
563 struct amr_command *ac;
564 struct amr_mailbox *mb;
565 struct amr_linux_ioctl ali;
568 int len, ac_flags = 0;
569 int logical_drives_changed = 0;
570 u_int32_t linux_version = 0x02100000;
572 struct amr_passthrough *ap; /* 60 bytes */
579 if ((error = copyin(addr, &ali, sizeof(ali))) != 0)
581 switch (ali.ui.fcs.opcode) {
583 switch(ali.ui.fcs.subopcode) {
585 copyout(&linux_version, (void *)(uintptr_t)ali.data,
586 sizeof(linux_version));
591 copyout(&linux_no_adapter, (void *)(uintptr_t)ali.data,
592 sizeof(linux_no_adapter));
593 td->td_retval[0] = linux_no_adapter;
598 printf("Unknown subopcode\n");
606 if (ali.ui.fcs.opcode == 0x80)
607 len = max(ali.outlen, ali.inlen);
609 len = ali.ui.fcs.length;
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;
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_statusp = &arg.au32->au_status;
801 debug(1, "AMR_IO_COMMAND 0x%x", arg.au->au_cmd[0]);
802 au_cmd = arg.au->au_cmd;
803 au_buffer = (void *)arg.au->au_buffer;
804 au_length = arg.au->au_length;
805 au_statusp = &arg.au->au_status;
809 case 0xc06e6d00: /* Linux emulation */
812 struct amr_linux_ioctl ali;
815 devclass = devclass_find("amr");
816 if (devclass == NULL)
819 error = copyin(addr, &ali, sizeof(ali));
822 if (ali.ui.fcs.opcode == 0x82)
825 adapter = (ali.ui.fcs.adapno) ^ 'm' << 8;
827 sc = devclass_get_softc(devclass, adapter);
831 return (amr_linux_ioctl_int(sc->amr_dev_t, cmd, addr, 0, td));
834 debug(1, "unknown ioctl 0x%lx", cmd);
838 if ((au_cmd[0] == FC_DEL_LOGDRV && au_cmd[1] == OP_DEL_LOGDRV) || /* delete */
839 (au_cmd[0] == AMR_CMD_CONFIG && au_cmd[1] == 0x0d)) { /* create */
840 if (sc->amr_allow_vol_config == 0) {
844 logical_drives_changed = 1;
846 if ((error = amr_prepare_ld_delete(sc)) != 0)
851 /* handle inbound data buffer */
852 real_length = amr_ioctl_buffer_length(au_length);
853 dp = malloc(real_length, M_AMR, M_WAITOK|M_ZERO);
854 if (au_length != 0 && au_cmd[0] != 0x06) {
855 if ((error = copyin(au_buffer, dp, au_length)) != 0) {
859 debug(2, "copyin %ld bytes from %p -> %p", au_length, au_buffer, dp);
862 /* Allocate this now before the mutex gets held */
864 mtx_lock(&sc->amr_list_lock);
865 while ((ac = amr_alloccmd(sc)) == NULL)
866 msleep(sc, &sc->amr_list_lock, PPAUSE, "amrioc", hz);
868 /* handle SCSI passthrough command */
869 if (au_cmd[0] == AMR_CMD_PASS) {
872 ap = &ac->ac_ccb->ccb_pthru;
873 bzero(ap, sizeof(struct amr_passthrough));
877 ap->ap_cdb_length = len;
878 bcopy(au_cmd + 3, ap->ap_cdb, len);
880 /* build passthrough */
881 ap->ap_timeout = au_cmd[len + 3] & 0x07;
882 ap->ap_ars = (au_cmd[len + 3] & 0x08) ? 1 : 0;
883 ap->ap_islogical = (au_cmd[len + 3] & 0x80) ? 1 : 0;
884 ap->ap_logical_drive_no = au_cmd[len + 4];
885 ap->ap_channel = au_cmd[len + 5];
886 ap->ap_scsi_id = au_cmd[len + 6];
887 ap->ap_request_sense_length = 14;
888 ap->ap_data_transfer_length = au_length;
889 /* XXX what about the request-sense area? does the caller want it? */
892 ac->ac_mailbox.mb_command = AMR_CMD_PASS;
893 ac->ac_flags = AMR_CMD_CCB;
896 /* direct command to controller */
897 mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox;
899 /* copy pertinent mailbox items */
900 mbi->mb_command = au_cmd[0];
901 mbi->mb_channel = au_cmd[1];
902 mbi->mb_param = au_cmd[2];
903 mbi->mb_pad[0] = au_cmd[3];
904 mbi->mb_drive = au_cmd[4];
908 /* build the command */
910 ac->ac_length = real_length;
911 ac->ac_flags |= AMR_CMD_DATAIN|AMR_CMD_DATAOUT;
913 /* run the command */
914 error = amr_wait_command(ac);
915 mtx_unlock(&sc->amr_list_lock);
919 /* copy out data and set status */
920 if (au_length != 0) {
921 error = copyout(dp, au_buffer, au_length);
923 debug(2, "copyout %ld bytes from %p -> %p", au_length, dp, au_buffer);
924 debug(2, "%p status 0x%x", dp, ac->ac_status);
925 *au_statusp = ac->ac_status;
929 * At this point, we know that there is a lock held and that these
930 * objects have been allocated.
932 mtx_lock(&sc->amr_list_lock);
935 mtx_unlock(&sc->amr_list_lock);
940 if (logical_drives_changed)
941 amr_rescan_drives(dev);
947 /********************************************************************************
948 ********************************************************************************
950 ********************************************************************************
951 ********************************************************************************/
953 /********************************************************************************
954 * Interrogate the controller for the operational parameters we require.
957 amr_query_controller(struct amr_softc *sc)
959 struct amr_enquiry3 *aex;
960 struct amr_prodinfo *ap;
961 struct amr_enquiry *ae;
966 * Greater than 10 byte cdb support
968 sc->support_ext_cdb = amr_support_ext_cdb(sc);
970 if(sc->support_ext_cdb) {
971 debug(2,"supports extended CDBs.");
975 * Try to issue an ENQUIRY3 command
977 if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3,
978 AMR_CONFIG_ENQ3_SOLICITED_FULL, &status)) != NULL) {
981 * Fetch current state of logical drives.
983 for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) {
984 sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv];
985 sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv];
986 sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv];
987 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
988 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
993 * Get product info for channel count.
995 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0, &status)) == NULL) {
996 device_printf(sc->amr_dev, "can't obtain product data from controller\n");
999 sc->amr_maxdrives = 40;
1000 sc->amr_maxchan = ap->ap_nschan;
1001 sc->amr_maxio = ap->ap_maxio;
1002 sc->amr_type |= AMR_TYPE_40LD;
1005 ap = amr_enquiry(sc, 0, FC_DEL_LOGDRV, OP_SUP_DEL_LOGDRV, 0, &status);
1009 sc->amr_ld_del_supported = 1;
1010 device_printf(sc->amr_dev, "delete logical drives supported by controller\n");
1014 /* failed, try the 8LD ENQUIRY commands */
1015 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0, &status)) == NULL) {
1016 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0, &status)) == NULL) {
1017 device_printf(sc->amr_dev, "can't obtain configuration data from controller\n");
1020 ae->ae_signature = 0;
1024 * Fetch current state of logical drives.
1026 for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) {
1027 sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv];
1028 sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv];
1029 sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv];
1030 debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size,
1031 sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties);
1034 sc->amr_maxdrives = 8;
1035 sc->amr_maxchan = ae->ae_adapter.aa_channels;
1036 sc->amr_maxio = ae->ae_adapter.aa_maxio;
1041 * Mark remaining drives as unused.
1043 for (; ldrv < AMR_MAXLD; ldrv++)
1044 sc->amr_drive[ldrv].al_size = 0xffffffff;
1047 * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust
1048 * the controller's reported value, and lockups have been seen when we do.
1050 sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD);
1055 /********************************************************************************
1056 * Run a generic enquiry-style command.
1059 amr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual, int *status)
1061 struct amr_command *ac;
1071 /* get ourselves a command buffer */
1072 mtx_lock(&sc->amr_list_lock);
1073 ac = amr_alloccmd(sc);
1074 mtx_unlock(&sc->amr_list_lock);
1077 /* allocate the response structure */
1078 if ((result = malloc(bufsize, M_AMR, M_ZERO|M_NOWAIT)) == NULL)
1080 /* set command flags */
1082 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAIN;
1084 /* point the command at our data */
1085 ac->ac_data = result;
1086 ac->ac_length = bufsize;
1088 /* build the command proper */
1089 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
1095 /* can't assume that interrupts are going to work here, so play it safe */
1096 if (sc->amr_poll_command(ac))
1098 error = ac->ac_status;
1099 *status = ac->ac_status;
1102 mtx_lock(&sc->amr_list_lock);
1105 mtx_unlock(&sc->amr_list_lock);
1106 if ((error != 0) && (result != NULL)) {
1107 free(result, M_AMR);
1113 /********************************************************************************
1114 * Flush the controller's internal cache, return status.
1117 amr_flush(struct amr_softc *sc)
1119 struct amr_command *ac;
1122 /* get ourselves a command buffer */
1124 mtx_lock(&sc->amr_list_lock);
1125 ac = amr_alloccmd(sc);
1126 mtx_unlock(&sc->amr_list_lock);
1129 /* set command flags */
1130 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1132 /* build the command proper */
1133 ac->ac_mailbox.mb_command = AMR_CMD_FLUSH;
1135 /* we have to poll, as the system may be going down or otherwise damaged */
1136 if (sc->amr_poll_command(ac))
1138 error = ac->ac_status;
1141 mtx_lock(&sc->amr_list_lock);
1144 mtx_unlock(&sc->amr_list_lock);
1148 /********************************************************************************
1149 * Detect extented cdb >> greater than 10 byte cdb support
1150 * returns '1' means this support exist
1151 * returns '0' means this support doesn't exist
1154 amr_support_ext_cdb(struct amr_softc *sc)
1156 struct amr_command *ac;
1160 /* get ourselves a command buffer */
1162 mtx_lock(&sc->amr_list_lock);
1163 ac = amr_alloccmd(sc);
1164 mtx_unlock(&sc->amr_list_lock);
1167 /* set command flags */
1168 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1170 /* build the command proper */
1171 mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */
1176 /* we have to poll, as the system may be going down or otherwise damaged */
1177 if (sc->amr_poll_command(ac))
1179 if( ac->ac_status == AMR_STATUS_SUCCESS ) {
1184 mtx_lock(&sc->amr_list_lock);
1187 mtx_unlock(&sc->amr_list_lock);
1191 /********************************************************************************
1192 * Try to find I/O work for the controller from one or more of the work queues.
1194 * We make the assumption that if the controller is not ready to take a command
1195 * at some given time, it will generate an interrupt at some later time when
1199 amr_startio(struct amr_softc *sc)
1201 struct amr_command *ac;
1203 /* spin until something prevents us from doing any work */
1206 /* Don't bother to queue commands no bounce buffers are available. */
1207 if (sc->amr_state & AMR_STATE_QUEUE_FRZN)
1210 /* try to get a ready command */
1211 ac = amr_dequeue_ready(sc);
1213 /* if that failed, build a command from a bio */
1215 (void)amr_bio_command(sc, &ac);
1217 /* if that failed, build a command from a ccb */
1218 if ((ac == NULL) && (sc->amr_cam_command != NULL))
1219 sc->amr_cam_command(sc, &ac);
1221 /* if we don't have anything to do, give up */
1225 /* try to give the command to the controller; if this fails save it for later and give up */
1226 if (amr_start(ac)) {
1227 debug(2, "controller busy, command deferred");
1228 amr_requeue_ready(ac); /* XXX schedule retry very soon? */
1234 /********************************************************************************
1235 * Handle completion of an I/O command.
1238 amr_completeio(struct amr_command *ac)
1240 struct amrd_softc *sc = ac->ac_bio->bio_disk->d_drv1;
1241 static struct timeval lastfail;
1244 if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */
1245 ac->ac_bio->bio_error = EIO;
1246 ac->ac_bio->bio_flags |= BIO_ERROR;
1248 if (ppsratecheck(&lastfail, &curfail, 1))
1249 device_printf(sc->amrd_dev, "I/O error - 0x%x\n", ac->ac_status);
1250 /* amr_printcommand(ac);*/
1252 amrd_intr(ac->ac_bio);
1253 mtx_lock(&ac->ac_sc->amr_list_lock);
1255 mtx_unlock(&ac->ac_sc->amr_list_lock);
1258 /********************************************************************************
1259 ********************************************************************************
1261 ********************************************************************************
1262 ********************************************************************************/
1264 /********************************************************************************
1265 * Convert a bio off the top of the bio queue into a command.
1268 amr_bio_command(struct amr_softc *sc, struct amr_command **acp)
1270 struct amr_command *ac;
1271 struct amrd_softc *amrd;
1282 if ((ac = amr_alloccmd(sc)) == NULL)
1285 /* get a bio to work on */
1286 if ((bio = amr_dequeue_bio(sc)) == NULL) {
1291 /* connect the bio to the command */
1292 ac->ac_complete = amr_completeio;
1294 ac->ac_data = bio->bio_data;
1295 ac->ac_length = bio->bio_bcount;
1297 switch (bio->bio_cmd) {
1299 ac->ac_flags |= AMR_CMD_DATAIN;
1300 if (AMR_IS_SG64(sc)) {
1301 cmd = AMR_CMD_LREAD64;
1302 ac->ac_flags |= AMR_CMD_SG64;
1304 cmd = AMR_CMD_LREAD;
1307 ac->ac_flags |= AMR_CMD_DATAOUT;
1308 if (AMR_IS_SG64(sc)) {
1309 cmd = AMR_CMD_LWRITE64;
1310 ac->ac_flags |= AMR_CMD_SG64;
1312 cmd = AMR_CMD_LWRITE;
1315 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
1316 cmd = AMR_CMD_FLUSH;
1319 amrd = (struct amrd_softc *)bio->bio_disk->d_drv1;
1320 driveno = amrd->amrd_drive - sc->amr_drive;
1321 blkcount = howmany(bio->bio_bcount, AMR_BLKSIZE);
1323 ac->ac_mailbox.mb_command = cmd;
1324 if (bio->bio_cmd == BIO_READ || bio->bio_cmd == BIO_WRITE) {
1325 ac->ac_mailbox.mb_blkcount = blkcount;
1326 ac->ac_mailbox.mb_lba = bio->bio_pblkno;
1327 if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size) {
1328 device_printf(sc->amr_dev,
1329 "I/O beyond end of unit (%lld,%d > %lu)\n",
1330 (long long)bio->bio_pblkno, blkcount,
1331 (u_long)sc->amr_drive[driveno].al_size);
1334 ac->ac_mailbox.mb_drive = driveno;
1335 if (sc->amr_state & AMR_STATE_REMAP_LD)
1336 ac->ac_mailbox.mb_drive |= 0x80;
1338 /* we fill in the s/g related data when the command is mapped */
1345 /********************************************************************************
1346 * Take a command, submit it to the controller and sleep until it completes
1347 * or fails. Interrupts must be enabled, returns nonzero on error.
1350 amr_wait_command(struct amr_command *ac)
1353 struct amr_softc *sc = ac->ac_sc;
1357 ac->ac_complete = NULL;
1358 ac->ac_flags |= AMR_CMD_SLEEP;
1359 if ((error = amr_start(ac)) != 0) {
1363 while ((ac->ac_flags & AMR_CMD_BUSY) && (error != EWOULDBLOCK)) {
1364 error = msleep(ac,&sc->amr_list_lock, PRIBIO, "amrwcmd", 0);
1370 /********************************************************************************
1371 * Take a command, submit it to the controller and busy-wait for it to return.
1372 * Returns nonzero on error. Can be safely called with interrupts enabled.
1375 amr_std_poll_command(struct amr_command *ac)
1377 struct amr_softc *sc = ac->ac_sc;
1382 ac->ac_complete = NULL;
1383 if ((error = amr_start(ac)) != 0)
1389 * Poll for completion, although the interrupt handler may beat us to it.
1390 * Note that the timeout here is somewhat arbitrary.
1394 } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000));
1395 if (!(ac->ac_flags & AMR_CMD_BUSY)) {
1398 /* XXX the slot is now marked permanently busy */
1400 device_printf(sc->amr_dev, "polled command timeout\n");
1406 amr_setup_polled_dmamap(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1408 struct amr_command *ac = arg;
1409 struct amr_softc *sc = ac->ac_sc;
1413 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1414 ac->ac_status = AMR_STATUS_ABORTED;
1418 amr_setup_sg(arg, segs, nsegs, err);
1420 /* for AMR_CMD_CONFIG Read/Write the s/g count goes elsewhere */
1421 mb_channel = ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_channel;
1422 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG &&
1423 ((mb_channel == AMR_CONFIG_READ_NVRAM_CONFIG) ||
1424 (mb_channel == AMR_CONFIG_WRITE_NVRAM_CONFIG)))
1425 ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param = ac->ac_nsegments;
1427 ac->ac_mailbox.mb_nsgelem = ac->ac_nsegments;
1428 ac->ac_mailbox.mb_physaddr = ac->ac_mb_physaddr;
1429 if (AC_IS_SG64(ac)) {
1431 ac->ac_sg64_lo = ac->ac_sgbusaddr;
1434 sc->amr_poll_command1(sc, ac);
1437 /********************************************************************************
1438 * Take a command, submit it to the controller and busy-wait for it to return.
1439 * Returns nonzero on error. Can be safely called with interrupts enabled.
1442 amr_quartz_poll_command(struct amr_command *ac)
1444 struct amr_softc *sc = ac->ac_sc;
1451 if (AC_IS_SG64(ac)) {
1452 ac->ac_tag = sc->amr_buffer64_dmat;
1453 ac->ac_datamap = ac->ac_dma64map;
1455 ac->ac_tag = sc->amr_buffer_dmat;
1456 ac->ac_datamap = ac->ac_dmamap;
1459 /* now we have a slot, we can map the command (unmapped in amr_complete) */
1460 if (ac->ac_data != 0) {
1461 if (bus_dmamap_load(ac->ac_tag, ac->ac_datamap, ac->ac_data,
1462 ac->ac_length, amr_setup_polled_dmamap, ac, BUS_DMA_NOWAIT) != 0) {
1466 error = amr_quartz_poll_command1(sc, ac);
1473 amr_quartz_poll_command1(struct amr_softc *sc, struct amr_command *ac)
1477 mtx_lock(&sc->amr_hw_lock);
1478 if ((sc->amr_state & AMR_STATE_INTEN) == 0) {
1480 while (sc->amr_busyslots) {
1481 msleep(sc, &sc->amr_hw_lock, PRIBIO | PCATCH, "amrpoll", hz);
1487 if(sc->amr_busyslots) {
1488 device_printf(sc->amr_dev, "adapter is busy\n");
1489 mtx_unlock(&sc->amr_hw_lock);
1490 if (ac->ac_data != NULL) {
1491 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1498 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE);
1500 /* clear the poll/ack fields in the mailbox */
1501 sc->amr_mailbox->mb_ident = 0xFE;
1502 sc->amr_mailbox->mb_nstatus = 0xFF;
1503 sc->amr_mailbox->mb_status = 0xFF;
1504 sc->amr_mailbox->mb_poll = 0;
1505 sc->amr_mailbox->mb_ack = 0;
1506 sc->amr_mailbox->mb_busy = 1;
1508 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
1510 while(sc->amr_mailbox->mb_nstatus == 0xFF)
1512 while(sc->amr_mailbox->mb_status == 0xFF)
1514 ac->ac_status=sc->amr_mailbox->mb_status;
1515 error = (ac->ac_status !=AMR_STATUS_SUCCESS) ? 1:0;
1516 while(sc->amr_mailbox->mb_poll != 0x77)
1518 sc->amr_mailbox->mb_poll = 0;
1519 sc->amr_mailbox->mb_ack = 0x77;
1521 /* acknowledge that we have the commands */
1522 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK);
1523 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
1525 mtx_unlock(&sc->amr_hw_lock);
1527 /* unmap the command's data buffer */
1528 if (ac->ac_flags & AMR_CMD_DATAIN) {
1529 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, BUS_DMASYNC_POSTREAD);
1531 if (ac->ac_flags & AMR_CMD_DATAOUT) {
1532 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, BUS_DMASYNC_POSTWRITE);
1534 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1540 amr_freeslot(struct amr_command *ac)
1542 struct amr_softc *sc = ac->ac_sc;
1548 if (sc->amr_busycmd[slot] == NULL)
1549 panic("amr: slot %d not busy?\n", slot);
1551 sc->amr_busycmd[slot] = NULL;
1552 atomic_subtract_int(&sc->amr_busyslots, 1);
1557 /********************************************************************************
1558 * Map/unmap (ac)'s data in the controller's addressable space as required.
1560 * These functions may be safely called multiple times on a given command.
1563 amr_setup_sg(void *arg, bus_dma_segment_t *segs, int nsegments, int error)
1565 struct amr_command *ac = (struct amr_command *)arg;
1566 struct amr_sgentry *sg;
1567 struct amr_sg64entry *sg64;
1572 /* get base address of s/g table */
1573 sg = ac->ac_sg.sg32;
1574 sg64 = ac->ac_sg.sg64;
1576 if (AC_IS_SG64(ac)) {
1577 ac->ac_nsegments = nsegments;
1578 ac->ac_mb_physaddr = 0xffffffff;
1579 for (i = 0; i < nsegments; i++, sg64++) {
1580 sg64->sg_addr = segs[i].ds_addr;
1581 sg64->sg_count = segs[i].ds_len;
1584 /* decide whether we need to populate the s/g table */
1585 if (nsegments < 2) {
1586 ac->ac_nsegments = 0;
1587 ac->ac_mb_physaddr = segs[0].ds_addr;
1589 ac->ac_nsegments = nsegments;
1590 ac->ac_mb_physaddr = ac->ac_sgbusaddr;
1591 for (i = 0; i < nsegments; i++, sg++) {
1592 sg->sg_addr = segs[i].ds_addr;
1593 sg->sg_count = segs[i].ds_len;
1599 if (ac->ac_flags & AMR_CMD_DATAIN)
1600 flags |= BUS_DMASYNC_PREREAD;
1601 if (ac->ac_flags & AMR_CMD_DATAOUT)
1602 flags |= BUS_DMASYNC_PREWRITE;
1603 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, flags);
1604 ac->ac_flags |= AMR_CMD_MAPPED;
1608 amr_setup_data(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1610 struct amr_command *ac = arg;
1611 struct amr_softc *sc = ac->ac_sc;
1615 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1620 amr_setup_sg(arg, segs, nsegs, err);
1622 /* for AMR_CMD_CONFIG Read/Write the s/g count goes elsewhere */
1623 mb_channel = ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_channel;
1624 if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG &&
1625 ((mb_channel == AMR_CONFIG_READ_NVRAM_CONFIG) ||
1626 (mb_channel == AMR_CONFIG_WRITE_NVRAM_CONFIG)))
1627 ((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param = ac->ac_nsegments;
1629 ac->ac_mailbox.mb_nsgelem = ac->ac_nsegments;
1630 ac->ac_mailbox.mb_physaddr = ac->ac_mb_physaddr;
1631 if (AC_IS_SG64(ac)) {
1633 ac->ac_sg64_lo = ac->ac_sgbusaddr;
1636 if (sc->amr_submit_command(ac) == EBUSY) {
1638 amr_requeue_ready(ac);
1643 amr_setup_ccb(void *arg, bus_dma_segment_t *segs, int nsegs, int err)
1645 struct amr_command *ac = arg;
1646 struct amr_softc *sc = ac->ac_sc;
1647 struct amr_passthrough *ap = &ac->ac_ccb->ccb_pthru;
1648 struct amr_ext_passthrough *aep = &ac->ac_ccb->ccb_epthru;
1651 device_printf(sc->amr_dev, "error %d in %s", err, __FUNCTION__);
1656 /* Set up the mailbox portion of the command to point at the ccb */
1657 ac->ac_mailbox.mb_nsgelem = 0;
1658 ac->ac_mailbox.mb_physaddr = ac->ac_ccb_busaddr;
1660 amr_setup_sg(arg, segs, nsegs, err);
1662 switch (ac->ac_mailbox.mb_command) {
1663 case AMR_CMD_EXTPASS:
1664 aep->ap_no_sg_elements = ac->ac_nsegments;
1665 aep->ap_data_transfer_address = ac->ac_mb_physaddr;
1668 ap->ap_no_sg_elements = ac->ac_nsegments;
1669 ap->ap_data_transfer_address = ac->ac_mb_physaddr;
1672 panic("Unknown ccb command");
1675 if (sc->amr_submit_command(ac) == EBUSY) {
1677 amr_requeue_ready(ac);
1682 amr_mapcmd(struct amr_command *ac)
1684 bus_dmamap_callback_t *cb;
1685 struct amr_softc *sc = ac->ac_sc;
1689 if (AC_IS_SG64(ac)) {
1690 ac->ac_tag = sc->amr_buffer64_dmat;
1691 ac->ac_datamap = ac->ac_dma64map;
1693 ac->ac_tag = sc->amr_buffer_dmat;
1694 ac->ac_datamap = ac->ac_dmamap;
1697 if (ac->ac_flags & AMR_CMD_CCB)
1700 cb = amr_setup_data;
1702 /* if the command involves data at all, and hasn't been mapped */
1703 if ((ac->ac_flags & AMR_CMD_MAPPED) == 0 && (ac->ac_data != NULL)) {
1704 /* map the data buffers into bus space and build the s/g list */
1705 if (bus_dmamap_load(ac->ac_tag, ac->ac_datamap, ac->ac_data,
1706 ac->ac_length, cb, ac, 0) == EINPROGRESS) {
1707 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
1710 if (sc->amr_submit_command(ac) == EBUSY) {
1712 amr_requeue_ready(ac);
1720 amr_unmapcmd(struct amr_command *ac)
1726 /* if the command involved data at all and was mapped */
1727 if (ac->ac_flags & AMR_CMD_MAPPED) {
1729 if (ac->ac_data != NULL) {
1732 if (ac->ac_flags & AMR_CMD_DATAIN)
1733 flag |= BUS_DMASYNC_POSTREAD;
1734 if (ac->ac_flags & AMR_CMD_DATAOUT)
1735 flag |= BUS_DMASYNC_POSTWRITE;
1737 bus_dmamap_sync(ac->ac_tag, ac->ac_datamap, flag);
1738 bus_dmamap_unload(ac->ac_tag, ac->ac_datamap);
1741 ac->ac_flags &= ~AMR_CMD_MAPPED;
1746 amr_abort_load(struct amr_command *ac)
1749 struct amr_softc *sc = ac->ac_sc;
1751 mtx_assert(&sc->amr_list_lock, MA_OWNED);
1753 ac->ac_status = AMR_STATUS_ABORTED;
1754 amr_init_qhead(&head);
1755 amr_enqueue_completed(ac, &head);
1757 mtx_unlock(&sc->amr_list_lock);
1758 amr_complete(sc, &head);
1759 mtx_lock(&sc->amr_list_lock);
1762 /********************************************************************************
1763 * Take a command and give it to the controller, returns 0 if successful, or
1764 * EBUSY if the command should be retried later.
1767 amr_start(struct amr_command *ac)
1769 struct amr_softc *sc;
1775 /* mark command as busy so that polling consumer can tell */
1777 ac->ac_flags |= AMR_CMD_BUSY;
1779 /* get a command slot (freed in amr_done) */
1781 if (sc->amr_busycmd[slot] != NULL)
1782 panic("amr: slot %d busy?\n", slot);
1783 sc->amr_busycmd[slot] = ac;
1784 atomic_add_int(&sc->amr_busyslots, 1);
1786 /* Now we have a slot, we can map the command (unmapped in amr_complete). */
1787 if ((error = amr_mapcmd(ac)) == ENOMEM) {
1789 * Memory resources are short, so free the slot and let this be tried
1798 /********************************************************************************
1799 * Extract one or more completed commands from the controller (sc)
1801 * Returns nonzero if any commands on the work queue were marked as completed.
1805 amr_done(struct amr_softc *sc)
1808 struct amr_command *ac;
1809 struct amr_mailbox mbox;
1814 /* See if there's anything for us to do */
1816 amr_init_qhead(&head);
1818 /* loop collecting completed commands */
1820 /* poll for a completed command's identifier and status */
1821 if (sc->amr_get_work(sc, &mbox)) {
1824 /* iterate over completed commands in this result */
1825 for (i = 0; i < mbox.mb_nstatus; i++) {
1826 /* get pointer to busy command */
1827 idx = mbox.mb_completed[i] - 1;
1828 ac = sc->amr_busycmd[idx];
1830 /* really a busy command? */
1833 /* pull the command from the busy index */
1836 /* save status for later use */
1837 ac->ac_status = mbox.mb_status;
1838 amr_enqueue_completed(ac, &head);
1839 debug(3, "completed command with status %x", mbox.mb_status);
1841 device_printf(sc->amr_dev, "bad slot %d completed\n", idx);
1845 break; /* no work */
1848 /* handle completion and timeouts */
1849 amr_complete(sc, &head);
1854 /********************************************************************************
1855 * Do completion processing on done commands on (sc)
1859 amr_complete(void *context, ac_qhead_t *head)
1861 struct amr_softc *sc = (struct amr_softc *)context;
1862 struct amr_command *ac;
1866 /* pull completed commands off the queue */
1868 ac = amr_dequeue_completed(sc, head);
1872 /* unmap the command's data buffer */
1876 * Is there a completion handler?
1878 if (ac->ac_complete != NULL) {
1879 /* unbusy the command */
1880 ac->ac_flags &= ~AMR_CMD_BUSY;
1881 ac->ac_complete(ac);
1884 * Is someone sleeping on this one?
1887 mtx_lock(&sc->amr_list_lock);
1888 ac->ac_flags &= ~AMR_CMD_BUSY;
1889 if (ac->ac_flags & AMR_CMD_SLEEP) {
1890 /* unbusy the command */
1893 mtx_unlock(&sc->amr_list_lock);
1896 if(!sc->amr_busyslots) {
1901 mtx_lock(&sc->amr_list_lock);
1902 sc->amr_state &= ~AMR_STATE_QUEUE_FRZN;
1904 mtx_unlock(&sc->amr_list_lock);
1907 /********************************************************************************
1908 ********************************************************************************
1909 Command Buffer Management
1910 ********************************************************************************
1911 ********************************************************************************/
1913 /********************************************************************************
1914 * Get a new command buffer.
1916 * This may return NULL in low-memory cases.
1918 * If possible, we recycle a command buffer that's been used before.
1920 struct amr_command *
1921 amr_alloccmd(struct amr_softc *sc)
1923 struct amr_command *ac;
1927 ac = amr_dequeue_free(sc);
1929 sc->amr_state |= AMR_STATE_QUEUE_FRZN;
1933 /* clear out significant fields */
1935 bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox));
1939 ac->ac_complete = NULL;
1942 ac->ac_datamap = NULL;
1946 /********************************************************************************
1947 * Release a command buffer for recycling.
1950 amr_releasecmd(struct amr_command *ac)
1954 amr_enqueue_free(ac);
1957 /********************************************************************************
1958 * Allocate a new command cluster and initialise it.
1961 amr_alloccmd_cluster(struct amr_softc *sc)
1963 struct amr_command_cluster *acc;
1964 struct amr_command *ac;
1968 * If we haven't found the real limit yet, let us have a couple of
1969 * commands in order to be able to probe.
1971 if (sc->amr_maxio == 0)
1974 if (sc->amr_nextslot > sc->amr_maxio)
1976 acc = malloc(AMR_CMD_CLUSTERSIZE, M_AMR, M_NOWAIT | M_ZERO);
1978 nextslot = sc->amr_nextslot;
1979 mtx_lock(&sc->amr_list_lock);
1980 TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link);
1981 mtx_unlock(&sc->amr_list_lock);
1982 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
1983 ac = &acc->acc_command[i];
1985 ac->ac_slot = nextslot;
1988 * The SG table for each slot is a fixed size and is assumed to
1989 * to hold 64-bit s/g objects when the driver is configured to do
1990 * 64-bit DMA. 32-bit DMA commands still use the same table, but
1991 * cast down to 32-bit objects.
1993 if (AMR_IS_SG64(sc)) {
1994 ac->ac_sgbusaddr = sc->amr_sgbusaddr +
1995 (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sg64entry));
1996 ac->ac_sg.sg64 = sc->amr_sg64table + (ac->ac_slot * AMR_NSEG);
1998 ac->ac_sgbusaddr = sc->amr_sgbusaddr +
1999 (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry));
2000 ac->ac_sg.sg32 = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
2003 ac->ac_ccb = sc->amr_ccb + ac->ac_slot;
2004 ac->ac_ccb_busaddr = sc->amr_ccb_busaddr +
2005 (ac->ac_slot * sizeof(union amr_ccb));
2007 if (bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap))
2009 if (AMR_IS_SG64(sc) &&
2010 (bus_dmamap_create(sc->amr_buffer64_dmat, 0,&ac->ac_dma64map)))
2013 if (++nextslot > sc->amr_maxio)
2016 sc->amr_nextslot = nextslot;
2020 /********************************************************************************
2021 * Free a command cluster
2024 amr_freecmd_cluster(struct amr_command_cluster *acc)
2026 struct amr_softc *sc = acc->acc_command[0].ac_sc;
2029 for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) {
2030 if (acc->acc_command[i].ac_sc == NULL)
2032 bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap);
2033 if (AMR_IS_SG64(sc))
2034 bus_dmamap_destroy(sc->amr_buffer64_dmat, acc->acc_command[i].ac_dma64map);
2039 /********************************************************************************
2040 ********************************************************************************
2041 Interface-specific Shims
2042 ********************************************************************************
2043 ********************************************************************************/
2045 /********************************************************************************
2046 * Tell the controller that the mailbox contains a valid command
2049 amr_quartz_submit_command(struct amr_command *ac)
2051 struct amr_softc *sc = ac->ac_sc;
2052 static struct timeval lastfail;
2056 mtx_lock(&sc->amr_hw_lock);
2057 while (sc->amr_mailbox->mb_busy && (i++ < 10)) {
2059 /* This is a no-op read that flushes pending mailbox updates */
2062 if (sc->amr_mailbox->mb_busy) {
2063 mtx_unlock(&sc->amr_hw_lock);
2064 if (ac->ac_retries++ > 1000) {
2065 if (ppsratecheck(&lastfail, &curfail, 1))
2066 device_printf(sc->amr_dev, "Too many retries on command %p. "
2067 "Controller is likely dead\n", ac);
2074 * Save the slot number so that we can locate this command when complete.
2075 * Note that ident = 0 seems to be special, so we don't use it.
2077 ac->ac_mailbox.mb_ident = ac->ac_slot + 1; /* will be coppied into mbox */
2078 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, 14);
2079 sc->amr_mailbox->mb_busy = 1;
2080 sc->amr_mailbox->mb_poll = 0;
2081 sc->amr_mailbox->mb_ack = 0;
2082 sc->amr_mailbox64->sg64_hi = ac->ac_sg64_hi;
2083 sc->amr_mailbox64->sg64_lo = ac->ac_sg64_lo;
2085 AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT);
2086 mtx_unlock(&sc->amr_hw_lock);
2091 amr_std_submit_command(struct amr_command *ac)
2093 struct amr_softc *sc = ac->ac_sc;
2094 static struct timeval lastfail;
2097 mtx_lock(&sc->amr_hw_lock);
2098 if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG) {
2099 mtx_unlock(&sc->amr_hw_lock);
2100 if (ac->ac_retries++ > 1000) {
2101 if (ppsratecheck(&lastfail, &curfail, 1))
2102 device_printf(sc->amr_dev, "Too many retries on command %p. "
2103 "Controller is likely dead\n", ac);
2110 * Save the slot number so that we can locate this command when complete.
2111 * Note that ident = 0 seems to be special, so we don't use it.
2113 ac->ac_mailbox.mb_ident = ac->ac_slot + 1; /* will be coppied into mbox */
2114 bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, 14);
2115 sc->amr_mailbox->mb_busy = 1;
2116 sc->amr_mailbox->mb_poll = 0;
2117 sc->amr_mailbox->mb_ack = 0;
2119 AMR_SPOST_COMMAND(sc);
2120 mtx_unlock(&sc->amr_hw_lock);
2124 /********************************************************************************
2125 * Claim any work that the controller has completed; acknowledge completion,
2126 * save details of the completion in (mbsave)
2129 amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
2134 u_int8_t completed[46];
2140 /* work waiting for us? */
2141 if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) {
2143 /* acknowledge interrupt */
2144 AMR_QPUT_ODB(sc, AMR_QODB_READY);
2146 while ((nstatus = sc->amr_mailbox->mb_nstatus) == 0xff)
2148 sc->amr_mailbox->mb_nstatus = 0xff;
2150 /* wait until fw wrote out all completions */
2151 for (i = 0; i < nstatus; i++) {
2152 while ((completed[i] = sc->amr_mailbox->mb_completed[i]) == 0xff)
2154 sc->amr_mailbox->mb_completed[i] = 0xff;
2157 /* Save information for later processing */
2158 mbsave->mb_nstatus = nstatus;
2159 mbsave->mb_status = sc->amr_mailbox->mb_status;
2160 sc->amr_mailbox->mb_status = 0xff;
2162 for (i = 0; i < nstatus; i++)
2163 mbsave->mb_completed[i] = completed[i];
2165 /* acknowledge that we have the commands */
2166 AMR_QPUT_IDB(sc, AMR_QIDB_ACK);
2169 #ifndef AMR_QUARTZ_GOFASTER
2171 * This waits for the controller to notice that we've taken the
2172 * command from it. It's very inefficient, and we shouldn't do it,
2173 * but if we remove this code, we stop completing commands under
2176 * Peter J says we shouldn't do this. The documentation says we
2177 * should. Who is right?
2179 while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK)
2180 ; /* XXX aiee! what if it dies? */
2184 worked = 1; /* got some work */
2191 amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave)
2200 /* check for valid interrupt status */
2201 istat = AMR_SGET_ISTAT(sc);
2202 if ((istat & AMR_SINTR_VALID) != 0) {
2203 AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */
2205 /* save mailbox, which contains a list of completed commands */
2206 bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave));
2208 AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */
2215 /********************************************************************************
2216 * Notify the controller of the mailbox location.
2219 amr_std_attach_mailbox(struct amr_softc *sc)
2222 /* program the mailbox physical address */
2223 AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff);
2224 AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff);
2225 AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff);
2226 AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff);
2227 AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR);
2229 /* clear any outstanding interrupt and enable interrupts proper */
2230 AMR_SACK_INTERRUPT(sc);
2231 AMR_SENABLE_INTR(sc);
2234 #ifdef AMR_BOARD_INIT
2235 /********************************************************************************
2236 * Initialise the controller
2239 amr_quartz_init(struct amr_softc *sc)
2241 int status, ostatus;
2243 device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc));
2248 while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) {
2249 if (status != ostatus) {
2250 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status));
2254 case AMR_QINIT_NOMEM:
2257 case AMR_QINIT_SCAN:
2258 /* XXX we could print channel/target here */
2266 amr_std_init(struct amr_softc *sc)
2268 int status, ostatus;
2270 device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc));
2275 while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) {
2276 if (status != ostatus) {
2277 device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status));
2281 case AMR_SINIT_NOMEM:
2284 case AMR_SINIT_INPROG:
2285 /* XXX we could print channel/target here? */
2293 /********************************************************************************
2294 ********************************************************************************
2296 ********************************************************************************
2297 ********************************************************************************/
2299 /********************************************************************************
2300 * Identify the controller and print some information about it.
2303 amr_describe_controller(struct amr_softc *sc)
2305 struct amr_prodinfo *ap;
2306 struct amr_enquiry *ae;
2311 * Try to get 40LD product info, which tells us what the card is labelled as.
2313 if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0, &status)) != NULL) {
2314 device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n",
2315 ap->ap_product, ap->ap_firmware, ap->ap_bios,
2323 * Try 8LD extended ENQUIRY to get controller signature, and use lookup table.
2325 if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0, &status)) != NULL) {
2326 prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature);
2328 } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0, &status)) != NULL) {
2331 * Try to work it out based on the PCI signatures.
2333 switch (pci_get_device(sc->amr_dev)) {
2335 prod = "Series 428";
2338 prod = "Series 434";
2341 prod = "unknown controller";
2345 device_printf(sc->amr_dev, "<unsupported controller>\n");
2350 * HP NetRaid controllers have a special encoding of the firmware and
2351 * BIOS versions. The AMI version seems to have it as strings whereas
2352 * the HP version does it with a leading uppercase character and two
2356 if(ae->ae_adapter.aa_firmware[2] >= 'A' &&
2357 ae->ae_adapter.aa_firmware[2] <= 'Z' &&
2358 ae->ae_adapter.aa_firmware[1] < ' ' &&
2359 ae->ae_adapter.aa_firmware[0] < ' ' &&
2360 ae->ae_adapter.aa_bios[2] >= 'A' &&
2361 ae->ae_adapter.aa_bios[2] <= 'Z' &&
2362 ae->ae_adapter.aa_bios[1] < ' ' &&
2363 ae->ae_adapter.aa_bios[0] < ' ') {
2365 /* this looks like we have an HP NetRaid version of the MegaRaid */
2367 if(ae->ae_signature == AMR_SIG_438) {
2368 /* the AMI 438 is a NetRaid 3si in HP-land */
2369 prod = "HP NetRaid 3si";
2372 device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n",
2373 prod, ae->ae_adapter.aa_firmware[2],
2374 ae->ae_adapter.aa_firmware[1],
2375 ae->ae_adapter.aa_firmware[0],
2376 ae->ae_adapter.aa_bios[2],
2377 ae->ae_adapter.aa_bios[1],
2378 ae->ae_adapter.aa_bios[0],
2379 ae->ae_adapter.aa_memorysize);
2381 device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n",
2382 prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios,
2383 ae->ae_adapter.aa_memorysize);
2389 amr_dump_blocks(struct amr_softc *sc, int unit, u_int32_t lba, void *data, int blks)
2391 struct amr_command *ac;
2396 sc->amr_state |= AMR_STATE_INTEN;
2398 /* get ourselves a command buffer */
2399 if ((ac = amr_alloccmd(sc)) == NULL)
2401 /* set command flags */
2402 ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT;
2404 /* point the command at our data */
2406 ac->ac_length = blks * AMR_BLKSIZE;
2408 /* build the command proper */
2409 ac->ac_mailbox.mb_command = AMR_CMD_LWRITE;
2410 ac->ac_mailbox.mb_blkcount = blks;
2411 ac->ac_mailbox.mb_lba = lba;
2412 ac->ac_mailbox.mb_drive = unit;
2414 /* can't assume that interrupts are going to work here, so play it safe */
2415 if (sc->amr_poll_command(ac))
2417 error = ac->ac_status;
2423 sc->amr_state &= ~AMR_STATE_INTEN;
2430 /********************************************************************************
2431 * Print the command (ac) in human-readable format
2435 amr_printcommand(struct amr_command *ac)
2437 struct amr_softc *sc = ac->ac_sc;
2438 struct amr_sgentry *sg;
2441 device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n",
2442 ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive);
2443 device_printf(sc->amr_dev, "blkcount %d lba %d\n",
2444 ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba);
2445 device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length);
2446 device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n",
2447 ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem);
2448 device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio);
2450 /* get base address of s/g table */
2451 sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG);
2452 for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++)
2453 device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count);