Add mptutil, a basic utility for managing MPT SCSI/SATA/SAS controllers.

Drive and controller status can be reported, basic attributes changed,
and arrays and spares can be created and deleted.

Approved by:	re
Obtained from:	Yahoo! Inc.

11 files changed, 4428 insertions, 0 deletions

diff --git a/usr.sbin/mptutil/Makefile b/usr.sbin/mptutil/Makefile
new file mode 100644
index 000000000000..4abf66e4657d
--- /dev/null
+++ b/usr.sbin/mptutil/Makefile
@@ -0,0 +1,19 @@
+# $FreeBSD$
+
+PROG=	mptutil
+SRCS=	mptutil.c mpt_cam.c mpt_cmd.c mpt_config.c mpt_drive.c mpt_evt.c \
+	mpt_show.c mpt_volume.c
+#	mpt_flash.c
+MAN=	mptutil.8
+
+WARNS?= 3
+
+DPADD+=	${LIBCAM} ${LIBUTIL}
+LDADD+=	-lcam -lutil
+
+# Here be dragons
+.ifdef DEBUG
+CFLAGS+= -DDEBUG
+.endif
+
+.include <bsd.prog.mk>
diff --git a/usr.sbin/mptutil/mpt_cam.c b/usr.sbin/mptutil/mpt_cam.c
new file mode 100644
index 000000000000..0d20c7db6019
--- /dev/null
+++ b/usr.sbin/mptutil/mpt_cam.c
@@ -0,0 +1,569 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <camlib.h>
+#include <cam/scsi/scsi_message.h>
+#include <cam/scsi/scsi_pass.h>
+
+#include "mptutil.h"
+
+static int xptfd;
+
+static int
+xpt_open(void)
+{
+
+	if (xptfd == 0)
+		xptfd = open(XPT_DEVICE, O_RDWR);
+	return (xptfd);
+}
+
+int
+mpt_query_disk(U8 VolumeBus, U8 VolumeID, struct mpt_query_disk *qd)
+{
+	struct bus_match_pattern *b;
+	struct periph_match_pattern *p;
+	struct periph_match_result *r;
+	union ccb ccb;
+	size_t bufsize;
+	int i;
+
+	/* mpt(4) only handles devices on bus 0. */
+	if (VolumeBus != 0)
+		return (ENXIO);
+
+	if (xpt_open() < 0)
+		return (ENXIO);
+
+	bzero(&ccb, sizeof(ccb));
+
+	ccb.ccb_h.func_code = XPT_DEV_MATCH;
+	ccb.ccb_h.path_id = CAM_XPT_PATH_ID;
+	ccb.ccb_h.target_id = CAM_TARGET_WILDCARD;
+	ccb.ccb_h.target_lun = CAM_LUN_WILDCARD;
+
+	bufsize = sizeof(struct dev_match_result) * 5;
+	ccb.cdm.num_matches = 0;
+	ccb.cdm.match_buf_len = bufsize;
+	ccb.cdm.matches = calloc(1, bufsize);
+
+	bufsize = sizeof(struct dev_match_pattern) * 2;
+	ccb.cdm.num_patterns = 2;
+	ccb.cdm.pattern_buf_len = bufsize;
+	ccb.cdm.patterns = calloc(1, bufsize);
+
+	/* Match mptX bus 0. */
+	ccb.cdm.patterns[0].type = DEV_MATCH_BUS;
+	b = &ccb.cdm.patterns[0].pattern.bus_pattern;
+	snprintf(b->dev_name, sizeof(b->dev_name), "mpt");
+	b->unit_number = mpt_unit;
+	b->bus_id = 0;
+	b->flags = BUS_MATCH_NAME | BUS_MATCH_UNIT | BUS_MATCH_BUS_ID;
+
+	/* Look for a "da" device at the specified target and lun. */
+	ccb.cdm.patterns[1].type = DEV_MATCH_PERIPH;
+	p = &ccb.cdm.patterns[1].pattern.periph_pattern;
+	snprintf(p->periph_name, sizeof(p->periph_name), "da");
+	p->target_id = VolumeID;
+	p->flags = PERIPH_MATCH_NAME | PERIPH_MATCH_TARGET;
+
+	if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
+		i = errno;
+		free(ccb.cdm.matches);
+		free(ccb.cdm.patterns);
+		return (i);
+	}
+	free(ccb.cdm.patterns);
+
+	if (((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) ||
+	    (ccb.cdm.status != CAM_DEV_MATCH_LAST)) {
+		warnx("mpt_query_disk got CAM error %#x, CDM error %d\n",
+		    ccb.ccb_h.status, ccb.cdm.status);
+		free(ccb.cdm.matches);
+		return (EIO);
+	}
+
+	/*
+	 * We should have exactly 2 matches, 1 for the bus and 1 for
+	 * the peripheral.  However, if we only have 1 match and it is
+	 * for the bus, don't print an error message and return
+	 * ENOENT.
+	 */
+	if (ccb.cdm.num_matches == 1 &&
+	    ccb.cdm.matches[0].type == DEV_MATCH_BUS) {
+		free(ccb.cdm.matches);
+		return (ENOENT);
+	}
+	if (ccb.cdm.num_matches != 2) {
+		warnx("mpt_query_disk got %d matches, expected 2",
+		    ccb.cdm.num_matches);
+		free(ccb.cdm.matches);
+		return (EIO);
+	}
+	if (ccb.cdm.matches[0].type != DEV_MATCH_BUS ||
+	    ccb.cdm.matches[1].type != DEV_MATCH_PERIPH) {
+		warnx("mpt_query_disk got wrong CAM matches");
+		free(ccb.cdm.matches);
+		return (EIO);
+	}
+
+	/* Copy out the data. */
+	r = &ccb.cdm.matches[1].result.periph_result;
+	snprintf(qd->devname, sizeof(qd->devname), "%s%d", r->periph_name,
+	    r->unit_number);
+	free(ccb.cdm.matches);
+
+	return (0);
+}
+
+static int
+periph_is_volume(CONFIG_PAGE_IOC_2 *ioc2, struct periph_match_result *r)
+{
+	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
+	int i;
+
+	if (ioc2 == NULL)
+		return (0);
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
+		if (vol->VolumeBus == 0 && vol->VolumeID == r->target_id)
+			return (1);
+	}
+	return (0);
+}
+
+/* Much borrowed from scsireadcapacity() in src/sbin/camcontrol/camcontrol.c. */
+static int
+fetch_scsi_capacity(struct cam_device *dev, struct mpt_standalone_disk *disk)
+{
+	struct scsi_read_capacity_data rcap;
+	struct scsi_read_capacity_data_long rcaplong;
+	union ccb *ccb;
+	int error;
+
+	ccb = cam_getccb(dev);
+	if (ccb == NULL)
+		return (ENOMEM);
+
+	/* Zero the rest of the ccb. */
+	bzero(&(&ccb->ccb_h)[1], sizeof(struct ccb_scsiio) -
+	    sizeof(struct ccb_hdr));
+
+	scsi_read_capacity(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, &rcap,
+	    SSD_FULL_SIZE, 5000);
+
+	/* Disable freezing the device queue */
+	ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
+
+	if (cam_send_ccb(dev, ccb) < 0) {
+		error = errno;
+		cam_freeccb(ccb);
+		return (error);
+	}
+
+	if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
+		cam_freeccb(ccb);
+		return (EIO);
+	}
+	cam_freeccb(ccb);
+
+	/*
+	 * A last block of 2^32-1 means that the true capacity is over 2TB,
+	 * and we need to issue the long READ CAPACITY to get the real
+	 * capacity.  Otherwise, we're all set.
+	 */
+	if (scsi_4btoul(rcap.addr) != 0xffffffff) {
+		disk->maxlba = scsi_4btoul(rcap.addr);
+		return (0);
+	}
+
+	/* Zero the rest of the ccb. */
+	bzero(&(&ccb->ccb_h)[1], sizeof(struct ccb_scsiio) -
+	    sizeof(struct ccb_hdr));
+
+	scsi_read_capacity_16(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, 0, 0, 0,
+	    &rcaplong, SSD_FULL_SIZE, 5000);
+
+	/* Disable freezing the device queue */
+	ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
+
+	if (cam_send_ccb(dev, ccb) < 0) {
+		error = errno;
+		cam_freeccb(ccb);
+		return (error);
+	}
+
+	if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
+		cam_freeccb(ccb);
+		return (EIO);
+	}
+	cam_freeccb(ccb);
+
+	disk->maxlba = scsi_8btou64(rcaplong.addr);
+	return (0);
+}
+
+/* Borrowed heavily from scsi_all.c:scsi_print_inquiry(). */
+static void
+format_scsi_inquiry(struct mpt_standalone_disk *disk,
+    struct scsi_inquiry_data *inq_data)
+{
+	char vendor[16], product[48], revision[16], rstr[12];
+
+	if (SID_QUAL_IS_VENDOR_UNIQUE(inq_data))
+		return;
+	if (SID_TYPE(inq_data) != T_DIRECT)
+		return;
+	if (SID_QUAL(inq_data) != SID_QUAL_LU_CONNECTED)
+		return;
+
+	cam_strvis(vendor, inq_data->vendor, sizeof(inq_data->vendor),
+	    sizeof(vendor));
+	cam_strvis(product, inq_data->product, sizeof(inq_data->product),
+	    sizeof(product));
+	cam_strvis(revision, inq_data->revision, sizeof(inq_data->revision),
+	    sizeof(revision));
+
+	/* Hack for SATA disks, no idea how to tell speed. */
+	if (strcmp(vendor, "ATA") == 0) {
+		snprintf(disk->inqstring, sizeof(disk->inqstring),
+		    "<%s %s> SATA", product, revision);
+		return;
+	}
+
+	switch (SID_ANSI_REV(inq_data)) {
+	case SCSI_REV_CCS:
+		strcpy(rstr, "SCSI-CCS");
+		break;
+	case 5:
+		strcpy(rstr, "SAS");
+		break;
+	default:
+		snprintf(rstr, sizeof (rstr), "SCSI-%d",
+		    SID_ANSI_REV(inq_data));
+		break;
+	}
+	snprintf(disk->inqstring, sizeof(disk->inqstring), "<%s %s %s> %s",
+	    vendor, product, revision, rstr);
+}
+
+/* Much borrowed from scsiinquiry() in src/sbin/camcontrol/camcontrol.c. */
+static int
+fetch_scsi_inquiry(struct cam_device *dev, struct mpt_standalone_disk *disk)
+{
+	struct scsi_inquiry_data *inq_buf;
+	union ccb *ccb;
+	int error;
+
+	ccb = cam_getccb(dev);
+	if (ccb == NULL)
+		return (ENOMEM);
+
+	/* Zero the rest of the ccb. */
+	bzero(&(&ccb->ccb_h)[1], sizeof(struct ccb_scsiio) -
+	    sizeof(struct ccb_hdr));
+
+	inq_buf = calloc(1, sizeof(*inq_buf));
+	if (inq_buf == NULL) {
+		cam_freeccb(ccb);
+		return (ENOMEM);
+	}
+	scsi_inquiry(&ccb->csio, 1, NULL, MSG_SIMPLE_Q_TAG, (void *)inq_buf,
+	    SHORT_INQUIRY_LENGTH, 0, 0, SSD_FULL_SIZE, 5000);
+
+	/* Disable freezing the device queue */
+	ccb->ccb_h.flags |= CAM_DEV_QFRZDIS;
+
+	if (cam_send_ccb(dev, ccb) < 0) {
+		error = errno;
+		free(inq_buf);
+		cam_freeccb(ccb);
+		return (error);
+	}
+
+	if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
+		free(inq_buf);
+		cam_freeccb(ccb);
+		return (EIO);
+	}
+
+	cam_freeccb(ccb);
+	format_scsi_inquiry(disk, inq_buf);
+	free(inq_buf);
+	return (0);
+}
+
+int
+mpt_fetch_disks(int fd, int *ndisks, struct mpt_standalone_disk **disksp)
+{
+	CONFIG_PAGE_IOC_2 *ioc2;
+	struct mpt_standalone_disk *disks;
+	struct bus_match_pattern *b;
+	struct periph_match_pattern *p;
+	struct periph_match_result *r;
+	struct cam_device *dev;
+	union ccb ccb;
+	size_t bufsize;
+	u_int i;
+	int count;
+
+	if (xpt_open() < 0)
+		return (ENXIO);
+
+	for (count = 100;; count+= 100) {
+		/* Try to fetch 'count' disks in one go. */
+		bzero(&ccb, sizeof(ccb));
+
+		ccb.ccb_h.func_code = XPT_DEV_MATCH;
+
+		bufsize = sizeof(struct dev_match_result) * (count + 2);
+		ccb.cdm.num_matches = 0;
+		ccb.cdm.match_buf_len = bufsize;
+		ccb.cdm.matches = calloc(1, bufsize);
+
+		bufsize = sizeof(struct dev_match_pattern) * 2;
+		ccb.cdm.num_patterns = 2;
+		ccb.cdm.pattern_buf_len = bufsize;
+		ccb.cdm.patterns = calloc(1, bufsize);
+
+		/* Match mptX bus 0. */
+		ccb.cdm.patterns[0].type = DEV_MATCH_BUS;
+		b = &ccb.cdm.patterns[0].pattern.bus_pattern;
+		snprintf(b->dev_name, sizeof(b->dev_name), "mpt");
+		b->unit_number = mpt_unit;
+		b->bus_id = 0;
+		b->flags = BUS_MATCH_NAME | BUS_MATCH_UNIT | BUS_MATCH_BUS_ID;
+
+		/* Match any "da" peripherals. */
+		ccb.cdm.patterns[1].type = DEV_MATCH_PERIPH;
+		p = &ccb.cdm.patterns[1].pattern.periph_pattern;
+		snprintf(p->periph_name, sizeof(p->periph_name), "da");
+		p->flags = PERIPH_MATCH_NAME;
+
+		if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
+			i = errno;
+			free(ccb.cdm.matches);
+			free(ccb.cdm.patterns);
+			return (i);
+		}
+		free(ccb.cdm.patterns);
+
+		/* Check for CCB errors. */
+		if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
+			free(ccb.cdm.matches);
+			return (EIO);
+		}
+
+		/* If we need a longer list, try again. */
+		if (ccb.cdm.status == CAM_DEV_MATCH_MORE) {
+			free(ccb.cdm.matches);
+			continue;
+		}
+
+		/* If we got an error, abort. */
+		if (ccb.cdm.status != CAM_DEV_MATCH_LAST) {
+			free(ccb.cdm.matches);
+			return (EIO);
+		}
+		break;
+	}
+
+	/*
+	 * We should have N + 1 matches, 1 for the bus and 1 for each
+	 * "da" device.
+	 */
+	if (ccb.cdm.num_matches < 1) {
+		warnx("mpt_fetch_disks didn't get any matches");
+		free(ccb.cdm.matches);
+		return (EIO);
+	}
+	if (ccb.cdm.matches[0].type != DEV_MATCH_BUS) {
+		warnx("mpt_fetch_disks got wrong CAM matches");
+		free(ccb.cdm.matches);
+		return (EIO);
+	}
+	for (i = 1; i < ccb.cdm.num_matches; i++) {
+		if (ccb.cdm.matches[i].type != DEV_MATCH_PERIPH) {
+			warnx("mpt_fetch_disks got wrong CAM matches");
+			free(ccb.cdm.matches);
+			return (EIO);
+		}
+	}
+
+	/* Shortcut if we don't have any "da" devices. */
+	if (ccb.cdm.num_matches == 1) {
+		free(ccb.cdm.matches);
+		*ndisks = 0;
+		*disksp = NULL;
+		return (0);
+	}
+
+	/*
+	 * Some of the "da" peripherals may be for RAID volumes, so
+	 * fetch the IOC 2 page (list of RAID volumes) so we can
+	 * exclude them from the list.
+	 */
+	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	disks = calloc(ccb.cdm.num_matches, sizeof(*disks));
+	count = 0;
+	for (i = 1; i < ccb.cdm.num_matches; i++) {
+		r = &ccb.cdm.matches[i].result.periph_result;
+		if (periph_is_volume(ioc2, r))
+			continue;
+		disks[count].bus = 0;
+		disks[count].target = r->target_id;
+		snprintf(disks[count].devname, sizeof(disks[count].devname),
+		    "%s%d", r->periph_name, r->unit_number);
+
+		dev = cam_open_device(disks[count].devname, O_RDWR);
+		if (dev != NULL) {
+			fetch_scsi_capacity(dev, &disks[count]);
+			fetch_scsi_inquiry(dev, &disks[count]);
+			cam_close_device(dev);
+		}
+		count++;
+	}
+	free(ccb.cdm.matches);
+	free(ioc2);
+
+	*ndisks = count;
+	*disksp = disks;
+	return (0);
+}
+
+/*
+ * Instruct the mpt(4) device to rescan its busses to find new devices
+ * such as disks whose RAID physdisk page was removed or volumes that
+ * were created.  If id is -1, the entire bus is rescanned.
+ * Otherwise, only devices at the specified ID are rescanned.  If bus
+ * is -1, then all busses are scanned instead of the specified bus.
+ * Note that currently, only bus 0 is supported.
+ */
+int
+mpt_rescan_bus(int bus, int id)
+{
+	struct bus_match_pattern *b;
+	union ccb ccb;
+	path_id_t path_id;
+	size_t bufsize;
+
+	/* mpt(4) only handles devices on bus 0. */
+	if (bus != -1 && bus != 0)
+		return (EINVAL);
+
+	if (xpt_open() < 0)
+		return (ENXIO);
+
+	/* First, find the path id of bus 0 for this mpt controller. */
+	bzero(&ccb, sizeof(ccb));
+
+	ccb.ccb_h.func_code = XPT_DEV_MATCH;
+
+	bufsize = sizeof(struct dev_match_result) * 1;
+	ccb.cdm.num_matches = 0;
+	ccb.cdm.match_buf_len = bufsize;
+	ccb.cdm.matches = calloc(1, bufsize);
+
+	bufsize = sizeof(struct dev_match_pattern) * 1;
+	ccb.cdm.num_patterns = 1;
+	ccb.cdm.pattern_buf_len = bufsize;
+	ccb.cdm.patterns = calloc(1, bufsize);
+
+	/* Match mptX bus 0. */
+	ccb.cdm.patterns[0].type = DEV_MATCH_BUS;
+	b = &ccb.cdm.patterns[0].pattern.bus_pattern;
+	snprintf(b->dev_name, sizeof(b->dev_name), "mpt");
+	b->unit_number = mpt_unit;
+	b->bus_id = 0;
+	b->flags = BUS_MATCH_NAME | BUS_MATCH_UNIT | BUS_MATCH_BUS_ID;
+
+	if (ioctl(xptfd, CAMIOCOMMAND, &ccb) < 0) {
+		free(ccb.cdm.matches);
+		free(ccb.cdm.patterns);
+		return (errno);
+	}
+	free(ccb.cdm.patterns);
+
+	if (((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) ||
+	    (ccb.cdm.status != CAM_DEV_MATCH_LAST)) {
+		warnx("mpt_rescan_bus got CAM error %#x, CDM error %d\n",
+		    ccb.ccb_h.status, ccb.cdm.status);
+		free(ccb.cdm.matches);
+		return (EIO);
+	}
+
+	/* We should have exactly 1 match for the bus. */
+	if (ccb.cdm.num_matches != 1 ||
+	    ccb.cdm.matches[0].type != DEV_MATCH_BUS) {
+		free(ccb.cdm.matches);
+		return (ENOENT);
+	}
+	path_id = ccb.cdm.matches[0].result.bus_result.path_id;
+	free(ccb.cdm.matches);
+
+	/* Now perform the actual rescan. */
+	ccb.ccb_h.path_id = path_id;
+	if (id == -1) {
+		ccb.ccb_h.func_code = XPT_SCAN_BUS;
+		ccb.ccb_h.target_id = CAM_TARGET_WILDCARD;
+		ccb.ccb_h.target_lun = CAM_LUN_WILDCARD;
+		ccb.ccb_h.timeout = 5000;
+	} else {
+		ccb.ccb_h.func_code = XPT_SCAN_LUN;
+		ccb.ccb_h.target_id = id;
+		ccb.ccb_h.target_lun = 0;
+	}
+	ccb.crcn.flags = CAM_FLAG_NONE;
+
+	/* Run this at a low priority. */
+	ccb.ccb_h.pinfo.priority = 5;
+
+	if (ioctl(xptfd, CAMIOCOMMAND, &ccb) == -1)
+		return (errno);
+
+	if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
+		warnx("mpt_rescan_bus rescan got CAM error %#x\n",
+		    ccb.ccb_h.status & CAM_STATUS_MASK);
+		return (EIO);
+	}
+
+	return (0);
+}
diff --git a/usr.sbin/mptutil/mpt_cmd.c b/usr.sbin/mptutil/mpt_cmd.c
new file mode 100644
index 000000000000..2d6000c77313
--- /dev/null
+++ b/usr.sbin/mptutil/mpt_cmd.c
@@ -0,0 +1,639 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/mpt_ioctl.h>
+#include <sys/sysctl.h>
+#include <sys/uio.h>
+
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mptutil.h"
+
+static const char *mpt_ioc_status_codes[] = {
+	"Success",				/* 0x0000 */
+	"Invalid function",
+	"Busy",
+	"Invalid scatter-gather list",
+	"Internal error",
+	"Reserved",
+	"Insufficient resources",
+	"Invalid field",
+	"Invalid state",			/* 0x0008 */
+	"Operation state not supported",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,					/* 0x0010 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,					/* 0x0018 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"Invalid configuration action",		/* 0x0020 */
+	"Invalid configuration type",
+	"Invalid configuration page",
+	"Invalid configuration data",
+	"No configuration defaults",
+	"Unable to commit configuration change",
+	NULL,
+	NULL,
+	NULL,					/* 0x0028 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,					/* 0x0030 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,					/* 0x0038 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"Recovered SCSI error",			/* 0x0040 */
+	"Invalid SCSI bus",
+	"Invalid SCSI target ID",
+	"SCSI device not there",
+	"SCSI data overrun",
+	"SCSI data underrun",
+	"SCSI I/O error",
+	"SCSI protocol error",
+	"SCSI task terminated",			/* 0x0048 */
+	"SCSI residual mismatch",
+	"SCSI task management failed",
+	"SCSI I/O controller terminated",
+	"SCSI external controller terminated",
+	"EEDP guard error",
+	"EEDP reference tag error",
+	"EEDP application tag error",
+	NULL,					/* 0x0050 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,					/* 0x0058 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"SCSI target priority I/O",		/* 0x0060 */
+	"Invalid SCSI target port",
+	"Invalid SCSI target I/O index",
+	"SCSI target aborted",
+	"No connection retryable",
+	"No connection",
+	"FC aborted",
+	"Invalid FC receive ID",
+	"FC did invalid",			/* 0x0068 */
+	"FC node logged out",
+	"Transfer count mismatch",
+	"STS data not set",
+	"FC exchange canceled",
+	"Data offset error",
+	"Too much write data",
+	"IU too short",
+	"ACK NAK timeout",			/* 0x0070 */
+	"NAK received",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,					/* 0x0078 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"LAN device not found",			/* 0x0080 */
+	"LAN device failure",
+	"LAN transmit error",
+	"LAN transmit aborted",
+	"LAN receive error",
+	"LAN receive aborted",
+	"LAN partial packet",
+	"LAN canceled",
+	NULL,					/* 0x0088 */
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"SAS SMP request failed",		/* 0x0090 */
+	"SAS SMP data overrun",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"Inband aborted",			/* 0x0098 */
+	"No inband connection",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"Diagnostic released",			/* 0x00A0 */
+};
+
+static const char *mpt_raid_action_status_codes[] = {
+	"Success",
+	"Invalid action",
+	"Failure",
+	"Operation in progress",
+};
+
+const char *
+mpt_ioc_status(U16 IOCStatus)
+{
+	static char buffer[16];
+
+	IOCStatus &= MPI_IOCSTATUS_MASK;
+	if (IOCStatus < sizeof(mpt_ioc_status_codes) / sizeof(char *) &&
+	    mpt_ioc_status_codes[IOCStatus] != NULL)
+		return (mpt_ioc_status_codes[IOCStatus]);
+	snprintf(buffer, sizeof(buffer), "Status: 0x%04x", IOCStatus);
+	return (buffer);
+}
+
+const char *
+mpt_raid_status(U16 ActionStatus)
+{
+	static char buffer[16];
+
+	if (ActionStatus < sizeof(mpt_raid_action_status_codes) /
+	    sizeof(char *))
+		return (mpt_raid_action_status_codes[ActionStatus]);
+	snprintf(buffer, sizeof(buffer), "Status: 0x%04x", ActionStatus);
+	return (buffer);
+}
+
+const char *
+mpt_raid_level(U8 VolumeType)
+{
+	static char buf[16];
+
+	switch (VolumeType) {
+	case MPI_RAID_VOL_TYPE_IS:
+		return ("RAID-0");
+	case MPI_RAID_VOL_TYPE_IM:
+		return ("RAID-1");
+	case MPI_RAID_VOL_TYPE_IME:
+		return ("RAID-1E");
+	case MPI_RAID_VOL_TYPE_RAID_5:
+		return ("RAID-5");
+	case MPI_RAID_VOL_TYPE_RAID_6:
+		return ("RAID-6");
+	case MPI_RAID_VOL_TYPE_RAID_10:
+		return ("RAID-10");
+	case MPI_RAID_VOL_TYPE_RAID_50:
+		return ("RAID-50");
+	default:
+		sprintf(buf, "LVL 0x%02x", VolumeType);
+		return (buf);
+	}
+}
+
+const char *
+mpt_volume_name(U8 VolumeBus, U8 VolumeID)
+{
+	static struct mpt_query_disk info;
+	static char buf[16];
+
+	if (mpt_query_disk(VolumeBus, VolumeID, &info) != 0) {
+		/*
+		 * We only print out the bus number if it is non-zero
+		 * since mpt(4) only supports devices on bus zero
+		 * anyway.
+		 */
+		if (VolumeBus == 0)
+			snprintf(buf, sizeof(buf), "%d", VolumeID);
+		else
+			snprintf(buf, sizeof(buf), "%d:%d", VolumeBus,
+			    VolumeID);
+		return (buf);
+	}
+	return (info.devname);
+}
+
+int
+mpt_lookup_volume(int fd, const char *name, U8 *VolumeBus, U8 *VolumeID)
+{
+	CONFIG_PAGE_IOC_2 *ioc2;
+	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
+	struct mpt_query_disk info;
+	char *cp;
+	long bus, id;
+	int i;
+
+	/*
+	 * Check for a raw [<bus>:]<id> string.  If the bus is not
+	 * specified, assume bus 0.
+	 */
+	bus = strtol(name, &cp, 0);
+	if (*cp == ':') {
+		id = strtol(cp + 1, &cp, 0);
+		if (*cp == '\0') {
+			if (bus < 0 || bus > 0xff || id < 0 || id > 0xff) {
+				errno = EINVAL;
+				return (-1);
+			}
+			*VolumeBus = bus;
+			*VolumeID = id;
+			return (0);
+		}
+	} else if (*cp == '\0') {
+		if (bus < 0 || bus > 0xff) {
+			errno = EINVAL;
+			return (-1);
+		}
+		*VolumeBus = 0;
+		*VolumeID = bus;
+		return (0);
+	}
+
+	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	if (ioc2 == NULL)
+		return (-1);
+
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
+		if (mpt_query_disk(vol->VolumeBus, vol->VolumeID, &info) != 0)
+			continue;
+		if (strcmp(name, info.devname) == 0) {
+			*VolumeBus = vol->VolumeBus;
+			*VolumeID = vol->VolumeID;
+			free(ioc2);
+			return (0);
+		}
+	}
+	free(ioc2);
+	errno = EINVAL;
+	return (-1);
+}
+
+int
+mpt_read_config_page_header(int fd, U8 PageType, U8 PageNumber, U32 PageAddress,
+    CONFIG_PAGE_HEADER *header, U16 *IOCStatus)
+{
+	struct mpt_cfg_page_req req;
+
+	if (IOCStatus != NULL)
+		*IOCStatus = MPI_IOCSTATUS_SUCCESS;
+	bzero(&req, sizeof(req));
+	req.header.PageType = PageType;
+	req.header.PageNumber = PageNumber;
+	req.page_address = PageAddress;
+	if (ioctl(fd, MPTIO_READ_CFG_HEADER, &req) < 0)
+		return (-1);
+	if (!IOC_STATUS_SUCCESS(req.ioc_status)) {
+		if (IOCStatus != NULL)
+			*IOCStatus = req.ioc_status;
+		else
+			warnx("Reading config page header failed: %s",
+			    mpt_ioc_status(req.ioc_status));
+		errno = EIO;
+		return (-1);
+	}
+	*header = req.header;
+	return (0);
+}
+
+void *
+mpt_read_config_page(int fd, U8 PageType, U8 PageNumber, U32 PageAddress,
+    U16 *IOCStatus)
+{
+	struct mpt_cfg_page_req req;
+	void *buf;
+	int save_errno;
+
+	if (IOCStatus != NULL)
+		*IOCStatus = MPI_IOCSTATUS_SUCCESS;
+	bzero(&req, sizeof(req));
+	req.header.PageType = PageType;
+	req.header.PageNumber = PageNumber;
+	req.page_address = PageAddress;
+	if (ioctl(fd, MPTIO_READ_CFG_HEADER, &req) < 0)
+		return (NULL);
+	if (!IOC_STATUS_SUCCESS(req.ioc_status)) {
+		if (IOCStatus != NULL)
+			*IOCStatus = req.ioc_status;
+		else
+			warnx("Reading config page header failed: %s",
+			    mpt_ioc_status(req.ioc_status));
+		errno = EIO;
+		return (NULL);
+	}
+	req.len = req.header.PageLength * 4;
+	buf = malloc(req.len);
+	req.buf = buf;
+	bcopy(&req.header, buf, sizeof(req.header));
+	if (ioctl(fd, MPTIO_READ_CFG_PAGE, &req) < 0) {
+		save_errno = errno;
+		free(buf);
+		errno = save_errno;
+		return (NULL);
+	}
+	if (!IOC_STATUS_SUCCESS(req.ioc_status)) {
+		if (IOCStatus != NULL)
+			*IOCStatus = req.ioc_status;
+		else
+			warnx("Reading config page failed: %s",
+			    mpt_ioc_status(req.ioc_status));
+		free(buf);
+		errno = EIO;
+		return (NULL);
+	}
+	return (buf);
+}
+
+void *
+mpt_read_extended_config_page(int fd, U8 ExtPageType, U8 PageVersion,
+    U8 PageNumber, U32 PageAddress, U16 *IOCStatus)
+{
+	struct mpt_ext_cfg_page_req req;
+	void *buf;
+	int save_errno;
+
+	if (IOCStatus != NULL)
+		*IOCStatus = MPI_IOCSTATUS_SUCCESS;
+	bzero(&req, sizeof(req));
+	req.header.PageVersion = PageVersion;
+	req.header.PageNumber = PageNumber;
+	req.header.ExtPageType = ExtPageType;
+	req.page_address = PageAddress;
+	if (ioctl(fd, MPTIO_READ_EXT_CFG_HEADER, &req) < 0)
+		return (NULL);
+	if (!IOC_STATUS_SUCCESS(req.ioc_status)) {
+		if (IOCStatus != NULL)
+			*IOCStatus = req.ioc_status;
+		else
+			warnx("Reading extended config page header failed: %s",
+			    mpt_ioc_status(req.ioc_status));
+		errno = EIO;
+		return (NULL);
+	}
+	req.len = req.header.ExtPageLength * 4;
+	buf = malloc(req.len);
+	req.buf = buf;
+	bcopy(&req.header, buf, sizeof(req.header));
+	if (ioctl(fd, MPTIO_READ_EXT_CFG_PAGE, &req) < 0) {
+		save_errno = errno;
+		free(buf);
+		errno = save_errno;
+		return (NULL);
+	}
+	if (!IOC_STATUS_SUCCESS(req.ioc_status)) {
+		if (IOCStatus != NULL)
+			*IOCStatus = req.ioc_status;
+		else
+			warnx("Reading extended config page failed: %s",
+			    mpt_ioc_status(req.ioc_status));
+		free(buf);
+		errno = EIO;
+		return (NULL);
+	}
+	return (buf);
+}
+
+int
+mpt_write_config_page(int fd, void *buf, U16 *IOCStatus)
+{
+	CONFIG_PAGE_HEADER *hdr;
+	struct mpt_cfg_page_req req;
+
+	if (IOCStatus != NULL)
+		*IOCStatus = MPI_IOCSTATUS_SUCCESS;
+	bzero(&req, sizeof(req));
+	req.buf = buf;
+	hdr = buf;
+	req.len = hdr->PageLength * 4;
+	if (ioctl(fd, MPTIO_WRITE_CFG_PAGE, &req) < 0)
+		return (-1);
+	if (!IOC_STATUS_SUCCESS(req.ioc_status)) {
+		if (IOCStatus != NULL) {
+			*IOCStatus = req.ioc_status;
+			return (0);
+		}
+		warnx("Writing config page failed: %s",
+		    mpt_ioc_status(req.ioc_status));
+		errno = EIO;
+		return (-1);
+	}
+	return (0);
+}
+
+int
+mpt_raid_action(int fd, U8 Action, U8 VolumeBus, U8 VolumeID, U8 PhysDiskNum,
+    U32 ActionDataWord, void *buf, int len, RAID_VOL0_STATUS *VolumeStatus,
+    U32 *ActionData, int datalen, U16 *IOCStatus, U16 *ActionStatus, int write)
+{
+	struct mpt_raid_action raid_act;
+
+	if (IOCStatus != NULL)
+		*IOCStatus = MPI_IOCSTATUS_SUCCESS;
+	if (datalen < 0 || (unsigned)datalen > sizeof(raid_act.action_data)) {
+		errno = EINVAL;
+		return (-1);
+	}
+	bzero(&raid_act, sizeof(raid_act));
+	raid_act.action = Action;
+	raid_act.volume_bus = VolumeBus;
+	raid_act.volume_id = VolumeID;
+	raid_act.phys_disk_num = PhysDiskNum;
+	raid_act.action_data_word = ActionDataWord;
+	if (buf != NULL && len != 0) {
+		raid_act.buf = buf;
+		raid_act.len = len;
+		raid_act.write = write;
+	}
+
+	if (ioctl(fd, MPTIO_RAID_ACTION, &raid_act) < 0)
+		return (-1);
+
+	if (!IOC_STATUS_SUCCESS(raid_act.ioc_status)) {
+		if (IOCStatus != NULL) {
+			*IOCStatus = raid_act.ioc_status;
+			return (0);
+		}
+		warnx("RAID action failed: %s",
+		    mpt_ioc_status(raid_act.ioc_status));
+		errno = EIO;
+		return (-1);
+	}
+
+	if (ActionStatus != NULL)
+		*ActionStatus = raid_act.action_status;
+	if (raid_act.action_status != MPI_RAID_ACTION_ASTATUS_SUCCESS) {
+		if (ActionStatus != NULL)
+			return (0);
+		warnx("RAID action failed: %s",
+		    mpt_raid_status(raid_act.action_status));
+		errno = EIO;
+		return (-1);
+	}
+
+	if (VolumeStatus != NULL)
+		*((U32 *)VolumeStatus) = raid_act.volume_status;
+	if (ActionData != NULL)
+		bcopy(raid_act.action_data, ActionData, datalen);
+	return (0);
+}
+
+int
+mpt_open(int unit)
+{
+	char path[MAXPATHLEN];
+
+	snprintf(path, sizeof(path), "/dev/mpt%d", unit);
+	return (open(path, O_RDWR));
+}
+
+int
+mpt_table_handler(struct mptutil_command **start, struct mptutil_command **end,
+    int ac, char **av)
+{
+	struct mptutil_command **cmd;
+
+	if (ac < 2) {
+		warnx("The %s command requires a sub-command.", av[0]);
+		return (EINVAL);
+	}
+	for (cmd = start; cmd < end; cmd++) {
+		if (strcmp((*cmd)->name, av[1]) == 0)
+			return ((*cmd)->handler(ac - 1, av + 1));
+	}
+
+	warnx("%s is not a valid sub-command of %s.", av[1], av[0]);
+	return (ENOENT);
+}
+
+#ifdef DEBUG
+void
+hexdump(const void *ptr, int length, const char *hdr, int flags)
+{
+	int i, j, k;
+	int cols;
+	const unsigned char *cp;
+	char delim;
+
+	if ((flags & HD_DELIM_MASK) != 0)
+		delim = (flags & HD_DELIM_MASK) >> 8;
+	else
+		delim = ' ';
+
+	if ((flags & HD_COLUMN_MASK) != 0)
+		cols = flags & HD_COLUMN_MASK;
+	else
+		cols = 16;
+
+	cp = ptr;
+	for (i = 0; i < length; i+= cols) {
+		if (hdr != NULL)
+			printf("%s", hdr);
+
+		if ((flags & HD_OMIT_COUNT) == 0)
+			printf("%04x  ", i);
+
+		if ((flags & HD_OMIT_HEX) == 0) {
+			for (j = 0; j < cols; j++) {
+				k = i + j;
+				if (k < length)
+					printf("%c%02x", delim, cp[k]);
+				else
+					printf("   ");
+			}
+		}
+
+		if ((flags & HD_OMIT_CHARS) == 0) {
+			printf("  |");
+			for (j = 0; j < cols; j++) {
+				k = i + j;
+				if (k >= length)
+					printf(" ");
+				else if (cp[k] >= ' ' && cp[k] <= '~')
+					printf("%c", cp[k]);
+				else
+					printf(".");
+			}
+			printf("|");
+		}
+		printf("\n");
+	}
+}
+#endif
diff --git a/usr.sbin/mptutil/mpt_config.c b/usr.sbin/mptutil/mpt_config.c
new file mode 100644
index 000000000000..3874df301379
--- /dev/null
+++ b/usr.sbin/mptutil/mpt_config.c
@@ -0,0 +1,1160 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <err.h>
+#include <fcntl.h>
+#include <libutil.h>
+#include <paths.h>
+#ifdef DEBUG
+#include <stdint.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "mptutil.h"
+
+#ifdef DEBUG
+static void	dump_config(CONFIG_PAGE_RAID_VOL_0 *vol);
+#endif
+
+#define powerof2(x)    ((((x)-1)&(x))==0)
+
+static long
+dehumanize(const char *value)
+{
+        char    *vtp;
+        long    iv;
+ 
+        if (value == NULL)
+                return (0);
+        iv = strtoq(value, &vtp, 0);
+        if (vtp == value || (vtp[0] != '\0' && vtp[1] != '\0')) {
+                return (0);
+        }
+        switch (vtp[0]) {
+        case 't': case 'T':
+                iv *= 1024;
+        case 'g': case 'G':
+                iv *= 1024;
+        case 'm': case 'M':
+                iv *= 1024;
+        case 'k': case 'K':
+                iv *= 1024;
+        case '\0':
+                break;
+        default:
+                return (0);
+        }
+        return (iv);
+}
+
+/*
+ * Lock the volume by opening its /dev device read/write.  This will
+ * only work if nothing else has it opened (including mounts).  We
+ * leak the fd on purpose since this application is not long-running.
+ */
+int
+mpt_lock_volume(U8 VolumeBus, U8 VolumeID)
+{
+	char path[MAXPATHLEN];
+	struct mpt_query_disk qd;
+	int error, vfd;
+
+	error = mpt_query_disk(VolumeBus, VolumeID, &qd);
+	if (error == ENOENT)
+		/*
+		 * This means there isn't a CAM device associated with
+		 * the volume, and thus it is already implicitly
+		 * locked, so just return.
+		 */
+		return (0);
+	if (error) {
+		errno = error;
+		warn("Unable to lookup volume device name");
+		return (-1);
+	}
+	snprintf(path, sizeof(path), "%s%s", _PATH_DEV, qd.devname);
+	vfd = open(path, O_RDWR);
+	if (vfd < 0) {
+		warn("Unable to lock volume %s", qd.devname);
+		return (-1);
+	}
+	return (0);
+}
+
+static int
+mpt_lock_physdisk(struct mpt_standalone_disk *disk)
+{
+	char path[MAXPATHLEN];
+	int dfd;
+
+	snprintf(path, sizeof(path), "%s%s", _PATH_DEV, disk->devname);
+	dfd = open(path, O_RDWR);
+	if (dfd < 0) {
+		warn("Unable to lock disk %s", disk->devname);
+		return (-1);
+	}
+	return (0);
+}
+
+static int
+mpt_lookup_standalone_disk(const char *name, struct mpt_standalone_disk *disks,
+    int ndisks, int *index)
+{
+	char *cp;
+	long bus, id;
+	int i;
+
+	/* Check for a raw <bus>:<id> string. */
+	bus = strtol(name, &cp, 0);
+	if (*cp == ':') {
+		id = strtol(cp + 1, &cp, 0);
+		if (*cp == '\0') {
+			if (bus < 0 || bus > 0xff || id < 0 || id > 0xff) {
+				errno = EINVAL;
+				return (-1);
+			}
+			for (i = 0; i < ndisks; i++) {
+				if (disks[i].bus == (U8)bus &&
+				    disks[i].target == (U8)id) {
+					*index = i;
+					return (0);
+				}
+			}
+			errno = ENOENT;
+			return (-1);
+		}
+	}
+
+	if (name[0] == 'd' && name[1] == 'a') {
+		for (i = 0; i < ndisks; i++) {
+			if (strcmp(name, disks[i].devname) == 0) {
+				*index = i;
+				return (0);
+			}
+		}
+		errno = ENOENT;
+		return (-1);
+	}
+
+	errno = EINVAL;
+	return (-1);
+}
+
+/*
+ * Mark a standalone disk as being a physical disk.
+ */
+static int
+mpt_create_physdisk(int fd, struct mpt_standalone_disk *disk, U8 *PhysDiskNum)
+{
+	CONFIG_PAGE_HEADER header;
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *config_page;
+	U32 ActionData;
+
+	if (mpt_read_config_page_header(fd, MPI_CONFIG_PAGETYPE_RAID_PHYSDISK,
+	    0, 0, &header, NULL) < 0)
+		return (-1);
+	if (header.PageVersion > MPI_RAIDPHYSDISKPAGE0_PAGEVERSION) {
+		warnx("Unsupported RAID physdisk page 0 version %d",
+		    header.PageVersion);
+		errno = EOPNOTSUPP;
+		return (-1);
+	}		
+	config_page = calloc(1, sizeof(CONFIG_PAGE_RAID_PHYS_DISK_0));
+	config_page->Header.PageType = MPI_CONFIG_PAGETYPE_RAID_PHYSDISK;
+	config_page->Header.PageNumber = 0;
+	config_page->Header.PageLength = sizeof(CONFIG_PAGE_RAID_PHYS_DISK_0) /
+	    4;
+	config_page->PhysDiskIOC = 0;	/* XXX */
+	config_page->PhysDiskBus = disk->bus;
+	config_page->PhysDiskID = disk->target;
+
+	/* XXX: Enclosure info for PhysDiskSettings? */
+	if (mpt_raid_action(fd, MPI_RAID_ACTION_CREATE_PHYSDISK, 0, 0, 0, 0,
+	    config_page, sizeof(CONFIG_PAGE_RAID_PHYS_DISK_0), NULL,
+	    &ActionData, sizeof(ActionData), NULL, NULL, 1) < 0)
+		return (-1);
+	*PhysDiskNum = ActionData & 0xff;
+	return (0);
+}
+
+static int
+mpt_delete_physdisk(int fd, U8 PhysDiskNum)
+{
+
+	return (mpt_raid_action(fd, MPI_RAID_ACTION_DELETE_PHYSDISK, 0, 0,
+	    PhysDiskNum, 0, NULL, 0, NULL, NULL, 0, NULL, NULL, 0));
+}
+
+/*
+ * MPT's firmware does not have a clear command.  Instead, we
+ * implement it by deleting each array and disk by hand.
+ */
+static int
+clear_config(int ac, char **av)
+{
+	CONFIG_PAGE_IOC_2 *ioc2;
+	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
+	CONFIG_PAGE_IOC_3 *ioc3;
+	IOC_3_PHYS_DISK *disk;
+	CONFIG_PAGE_IOC_5 *ioc5;
+	IOC_5_HOT_SPARE *spare;
+	int ch, fd, i;
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	if (ioc2 == NULL) {
+		warn("Failed to fetch volume list");
+		return (errno);
+	}
+
+	/* Lock all the volumes first. */
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
+		if (mpt_lock_volume(vol->VolumeBus, vol->VolumeID) < 0) {
+			warnx("Volume %s is busy and cannot be deleted",
+			    mpt_volume_name(vol->VolumeBus, vol->VolumeID));
+			return (EBUSY);
+		}
+	}
+
+	printf(
+	    "Are you sure you wish to clear the configuration on mpt%u? [y/N] ",
+	    mpt_unit);
+	ch = getchar();
+	if (ch != 'y' && ch != 'Y') {
+		printf("\nAborting\n");
+		return (0);
+	}
+
+	/* Delete all the volumes. */
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++)
+		if (mpt_raid_action(fd, MPI_RAID_ACTION_DELETE_VOLUME,
+		    vol->VolumeBus, vol->VolumeID, 0,
+		    MPI_RAID_ACTION_ADATA_DEL_PHYS_DISKS |
+		    MPI_RAID_ACTION_ADATA_ZERO_LBA0, NULL, 0, NULL, NULL, 0,
+		    NULL, NULL, 0) < 0)
+			warn("Failed to delete volume %s",
+			    mpt_volume_name(vol->VolumeBus, vol->VolumeID));
+	free(ioc2);
+
+	/* Delete all the spares. */
+	ioc5 = mpt_read_ioc_page(fd, 5, NULL);
+	if (ioc5 == NULL)
+		warn("Failed to fetch spare list");
+	else {
+		spare = ioc5->HotSpare;
+		for (i = 0; i < ioc5->NumHotSpares; spare++, i++)
+			if (mpt_delete_physdisk(fd, spare->PhysDiskNum) < 0)
+				warn("Failed to delete physical disk %d",
+				    spare->PhysDiskNum);
+		free(ioc5);
+	}
+
+	/* Delete any RAID physdisks that may be left. */
+	ioc3 = mpt_read_ioc_page(fd, 3, NULL);
+	if (ioc3 == NULL)
+		warn("Failed to fetch drive list");
+	else {
+		disk = ioc3->PhysDisk;
+		for (i = 0; i < ioc3->NumPhysDisks; disk++, i++)
+			if (mpt_delete_physdisk(fd, disk->PhysDiskNum) < 0)
+				warn("Failed to delete physical disk %d",
+				    disk->PhysDiskNum);
+		free(ioc3);
+	}
+
+	printf("mpt%d: Configuration cleared\n", mpt_unit);
+	mpt_rescan_bus(-1, -1);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(top, clear, clear_config);
+
+#define	RT_RAID0	0
+#define	RT_RAID1	1
+#define	RT_RAID1E	2
+
+static struct raid_type_entry {
+	const char *name;
+	int	raid_type;
+} raid_type_table[] = {
+	{ "raid0",	RT_RAID0 },
+	{ "raid-0",	RT_RAID0 },
+	{ "raid1",	RT_RAID1 },
+	{ "raid-1",	RT_RAID1 },
+	{ "mirror",	RT_RAID1 },
+	{ "raid1e",	RT_RAID1E },
+	{ "raid-1e",	RT_RAID1E },
+	{ NULL,		0 },
+};
+
+struct config_id_state {
+	struct mpt_standalone_disk *sdisks;
+	struct mpt_drive_list *list;
+	CONFIG_PAGE_IOC_2 *ioc2;
+	U8	target_id;
+	int	nsdisks;
+};
+
+struct drive_info {
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
+	struct mpt_standalone_disk *sdisk;
+};
+
+struct volume_info {
+	int	drive_count;
+	struct drive_info *drives;
+};
+
+/* Parse a comma-separated list of drives for a volume. */
+static int
+parse_volume(int fd, int raid_type, struct config_id_state *state,
+    char *volume_str, struct volume_info *info)
+{
+	struct drive_info *dinfo;
+	U8 PhysDiskNum;
+	char *cp;
+	int count, error, i;
+
+	cp = volume_str;
+	for (count = 0; cp != NULL; count++) {
+		cp = strchr(cp, ',');
+		if (cp != NULL) {
+			cp++;
+			if (*cp == ',') {
+				warnx("Invalid drive list '%s'", volume_str);
+				return (EINVAL);
+			}
+		}
+	}
+
+	/* Validate the number of drives for this volume. */
+	switch (raid_type) {
+	case RT_RAID0:
+		if (count < 2) {
+			warnx("RAID0 requires at least 2 drives in each "
+			    "array");
+			return (EINVAL);
+		}
+		break;
+	case RT_RAID1:
+		if (count != 2) {
+			warnx("RAID1 requires exactly 2 drives in each "
+			    "array");
+			return (EINVAL);
+		}
+		break;
+	case RT_RAID1E:
+		if (count < 3) {
+			warnx("RAID1E requires at least 3 drives in each "
+			    "array");
+			return (EINVAL);
+		}
+		break;
+	}
+
+	/* Validate each drive. */
+	info->drives = calloc(count, sizeof(struct drive_info));
+	info->drive_count = count;
+	for (dinfo = info->drives; (cp = strsep(&volume_str, ",")) != NULL;
+	     dinfo++) {
+		/* If this drive is already a RAID phys just fetch the info. */
+		error = mpt_lookup_drive(state->list, cp, &PhysDiskNum);
+		if (error == 0) {
+			dinfo->info = mpt_pd_info(fd, PhysDiskNum, NULL);
+			if (dinfo->info == NULL)
+				return (errno);
+			continue;
+		}
+
+		/* See if it is a standalone disk. */
+		if (mpt_lookup_standalone_disk(cp, state->sdisks,
+		    state->nsdisks, &i) < 0) {
+			warn("Unable to lookup drive %s", cp);
+			return (errno);
+		}
+		dinfo->sdisk = &state->sdisks[i];
+
+		/* Lock the disk, we will create phys disk pages later. */
+		if (mpt_lock_physdisk(dinfo->sdisk) < 0)
+			return (errno);
+	}
+
+	return (0);
+}
+
+/*
+ * Add RAID physdisk pages for any standalone disks that a volume is
+ * going to use.
+ */
+static int
+add_drives(int fd, struct volume_info *info, int verbose)
+{
+	struct drive_info *dinfo;
+	U8 PhysDiskNum;
+	int i;
+
+	for (i = 0, dinfo = info->drives; i < info->drive_count;
+	     i++, dinfo++) {
+		if (dinfo->info == NULL) {
+			if (mpt_create_physdisk(fd, dinfo->sdisk,
+			    &PhysDiskNum) < 0) {
+				warn(
+			    "Failed to create physical disk page for %s",
+				    dinfo->sdisk->devname);
+				return (errno);
+			}
+			if (verbose)
+				printf("Added drive %s with PhysDiskNum %u\n",
+				    dinfo->sdisk->devname, PhysDiskNum);
+
+			dinfo->info = mpt_pd_info(fd, PhysDiskNum, NULL);
+			if (dinfo->info == NULL)
+				return (errno);
+		}
+	}
+	return (0);
+}
+
+/*
+ * Find the next free target ID assuming that 'target_id' is the last
+ * one used.  'target_id' should be 0xff for the initial test.
+ */
+static U8
+find_next_volume(struct config_id_state *state)
+{
+	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
+	int i;
+
+restart:
+	/* Assume the current one is used. */
+	state->target_id++;
+
+	/* Search drives first. */
+	for (i = 0; i < state->nsdisks; i++)
+		if (state->sdisks[i].target == state->target_id)
+			goto restart;
+	for (i = 0; i < state->list->ndrives; i++)
+		if (state->list->drives[i]->PhysDiskID == state->target_id)
+			goto restart;
+
+	/* Seach volumes second. */
+	vol = state->ioc2->RaidVolume;
+	for (i = 0; i < state->ioc2->NumActiveVolumes; vol++, i++)
+		if (vol->VolumeID == state->target_id)
+			goto restart;
+
+	return (state->target_id);
+}
+
+/* Create a volume and populate it with drives. */
+static CONFIG_PAGE_RAID_VOL_0 *
+build_volume(int fd, struct volume_info *info, int raid_type, long stripe_size,
+    struct config_id_state *state, int verbose)
+{
+	CONFIG_PAGE_HEADER header;
+	CONFIG_PAGE_RAID_VOL_0 *vol;
+	RAID_VOL0_PHYS_DISK *rdisk;
+	struct drive_info *dinfo;
+        U32 MinLBA;
+	uint64_t MaxLBA;
+	size_t page_size;
+	int i;
+
+	if (mpt_read_config_page_header(fd, MPI_CONFIG_PAGETYPE_RAID_VOLUME,
+	    0, 0, &header, NULL) < 0)
+		return (NULL);
+	if (header.PageVersion > MPI_RAIDVOLPAGE0_PAGEVERSION) {
+		warnx("Unsupported RAID volume page 0 version %d",
+		    header.PageVersion);
+		errno = EOPNOTSUPP;
+		return (NULL);
+	}
+	page_size = sizeof(CONFIG_PAGE_RAID_VOL_0) +
+	    sizeof(RAID_VOL0_PHYS_DISK) * (info->drive_count - 1);
+	vol = calloc(1, page_size);
+
+	/* Header */
+	vol->Header.PageType = MPI_CONFIG_PAGETYPE_RAID_VOLUME;
+	vol->Header.PageNumber = 0;
+	vol->Header.PageLength = page_size / 4;
+
+	/* Properties */
+	vol->VolumeID = find_next_volume(state);
+	vol->VolumeBus = 0;
+	vol->VolumeIOC = 0;	/* XXX */
+	vol->VolumeStatus.Flags = MPI_RAIDVOL0_STATUS_FLAG_ENABLED;
+	vol->VolumeStatus.State = MPI_RAIDVOL0_STATUS_STATE_OPTIMAL;
+	vol->VolumeSettings.Settings = MPI_RAIDVOL0_SETTING_USE_DEFAULTS;
+	vol->VolumeSettings.HotSparePool = MPI_RAID_HOT_SPARE_POOL_0;
+	vol->NumPhysDisks = info->drive_count;
+
+	/* Find the smallest drive. */
+	MinLBA = info->drives[0].info->MaxLBA;
+	for (i = 1; i < info->drive_count; i++)
+		if (info->drives[i].info->MaxLBA < MinLBA)
+			MinLBA = info->drives[i].info->MaxLBA;
+
+	/*
+	 * Now chop off 512MB at the end to leave room for the
+	 * metadata.  The controller might only use 64MB, but we just
+	 * chop off the max to be simple.
+	 */
+	MinLBA -= (512 * 1024 * 1024) / 512;
+
+	switch (raid_type) {
+	case RT_RAID0:
+		vol->VolumeType = MPI_RAID_VOL_TYPE_IS;
+		vol->StripeSize = stripe_size / 512;
+		MaxLBA = MinLBA * info->drive_count;
+		break;
+	case RT_RAID1:
+		vol->VolumeType = MPI_RAID_VOL_TYPE_IM;
+		MaxLBA = MinLBA * (info->drive_count / 2);
+		break;
+	case RT_RAID1E:
+		vol->VolumeType = MPI_RAID_VOL_TYPE_IME;
+		vol->StripeSize = stripe_size / 512;
+		MaxLBA = MinLBA * info->drive_count / 2;
+		break;
+	default:
+		/* Pacify gcc. */
+		abort();		
+	}
+
+	/*
+	 * If the controller doesn't support 64-bit addressing and the
+	 * new volume is larger than 2^32 blocks, warn the user and
+	 * truncate the volume.
+	 */
+	if (MaxLBA >> 32 != 0 &&
+	    !(state->ioc2->CapabilitiesFlags &
+	    MPI_IOCPAGE2_CAP_FLAGS_RAID_64_BIT_ADDRESSING)) {
+		warnx(
+	    "Controller does not support volumes > 2TB, truncating volume.");
+		MaxLBA = 0xffffffff;
+	}
+	vol->MaxLBA = MaxLBA;
+	vol->MaxLBAHigh = MaxLBA >> 32;
+
+	/* Populate drives. */
+	for (i = 0, dinfo = info->drives, rdisk = vol->PhysDisk;
+	     i < info->drive_count; i++, dinfo++, rdisk++) {
+		if (verbose)
+			printf("Adding drive %u (%u:%u) to volume %u:%u\n",
+			    dinfo->info->PhysDiskNum, dinfo->info->PhysDiskBus,
+			    dinfo->info->PhysDiskID, vol->VolumeBus,
+			    vol->VolumeID);
+		if (raid_type == RT_RAID1) {
+			if (i == 0)
+				rdisk->PhysDiskMap =
+				    MPI_RAIDVOL0_PHYSDISK_PRIMARY;
+			else
+				rdisk->PhysDiskMap =
+				    MPI_RAIDVOL0_PHYSDISK_SECONDARY;
+		} else
+			rdisk->PhysDiskMap = i;
+		rdisk->PhysDiskNum = dinfo->info->PhysDiskNum;
+	}
+
+	return (vol);
+}
+
+static int
+create_volume(int ac, char **av)
+{
+	CONFIG_PAGE_RAID_VOL_0 *vol;
+	struct config_id_state state;
+	struct volume_info *info;
+	int ch, error, fd, i, raid_type, verbose, quick;
+	long stripe_size;
+#ifdef DEBUG
+	int dump;
+#endif
+
+	if (ac < 2) {
+		warnx("create: volume type required");
+		return (EINVAL);
+	}
+	
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	/* Lookup the RAID type first. */
+	raid_type = -1;
+	for (i = 0; raid_type_table[i].name != NULL; i++)
+		if (strcasecmp(raid_type_table[i].name, av[1]) == 0) {
+			raid_type = raid_type_table[i].raid_type;
+			break;
+		}
+
+	if (raid_type == -1) {
+		warnx("Unknown or unsupported volume type %s", av[1]);
+		return (EINVAL);
+	}
+
+	/* Parse any options. */
+	optind = 2;
+#ifdef DEBUG
+	dump = 0;
+#endif
+	quick = 0;
+	verbose = 0;
+	stripe_size = 64 * 1024;
+
+	while ((ch = getopt(ac, av, "dqs:v")) != -1) {
+		switch (ch) {
+#ifdef DEBUG
+		case 'd':
+			dump = 1;
+			break;
+#endif
+		case 'q':
+			quick = 1;
+			break;
+		case 's':
+			stripe_size = dehumanize(optarg);
+			if ((stripe_size < 512) || (!powerof2(stripe_size))) {
+				warnx("Invalid stripe size %s", optarg);
+				return (EINVAL);
+			}
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case '?':
+		default:
+			return (EINVAL);
+		}
+	}
+	ac -= optind;
+	av += optind;
+
+	/* Fetch existing config data. */
+	state.ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	if (state.ioc2 == NULL) {
+		warn("Failed to read volume list");
+		return (errno);
+	}
+	state.list = mpt_pd_list(fd);
+	if (state.list == NULL)
+		return (errno);
+	error = mpt_fetch_disks(fd, &state.nsdisks, &state.sdisks);
+	if (error) {
+		warn("Failed to fetch standalone disk list");
+		return (error);
+	}	
+	state.target_id = 0xff;
+	
+	/* Parse the drive list. */
+	if (ac != 1) {
+		warnx("Exactly one drive list is required");
+		return (EINVAL);
+	}
+	info = calloc(1, sizeof(*info));
+	error = parse_volume(fd, raid_type, &state, av[0], info);
+	if (error)
+		return (error);
+
+	/* Create RAID physdisk pages for standalone disks. */
+	error = add_drives(fd, info, verbose);
+	if (error)
+		return (error);
+
+	/* Build the volume. */
+	vol = build_volume(fd, info, raid_type, stripe_size, &state, verbose);
+
+#ifdef DEBUG
+	if (dump) {
+		dump_config(vol);
+		goto skip;
+	}
+#endif
+
+	/* Send the new volume to the controller. */
+	if (mpt_raid_action(fd, MPI_RAID_ACTION_CREATE_VOLUME, vol->VolumeBus,
+	    vol->VolumeID, 0, quick ? MPI_RAID_ACTION_ADATA_DO_NOT_SYNC : 0,
+	    vol, vol->Header.PageLength * 4, NULL, NULL, 0, NULL, NULL, 1) <
+	    0) {
+		warn("Failed to add volume");
+		return (errno);
+	}
+
+#ifdef DEBUG
+skip:
+#endif
+	mpt_rescan_bus(vol->VolumeBus, vol->VolumeID);
+
+	/* Clean up. */
+	free(vol);
+	free(info);
+	free(state.sdisks);
+	mpt_free_pd_list(state.list);
+	free(state.ioc2);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(top, create, create_volume);
+
+static int
+delete_volume(int ac, char **av)
+{
+	U8 VolumeBus, VolumeID;
+	int fd;
+
+	if (ac != 2) {
+		warnx("delete: volume required");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	if (mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID) < 0) {
+		warn("Invalid volume %s", av[1]);
+		return (errno);
+	}
+
+	if (mpt_lock_volume(VolumeBus, VolumeID) < 0)
+		return (errno);
+
+	if (mpt_raid_action(fd, MPI_RAID_ACTION_DELETE_VOLUME, VolumeBus,
+	    VolumeID, 0, MPI_RAID_ACTION_ADATA_DEL_PHYS_DISKS |
+	    MPI_RAID_ACTION_ADATA_ZERO_LBA0, NULL, 0, NULL, NULL, 0, NULL,
+	    NULL, 0) < 0) {
+		warn("Failed to delete volume");
+		return (errno);
+	}
+
+	mpt_rescan_bus(-1, -1);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(top, delete, delete_volume);
+
+static int
+find_volume_spare_pool(int fd, const char *name, int *pool)
+{
+	CONFIG_PAGE_RAID_VOL_0 *info;
+	CONFIG_PAGE_IOC_2 *ioc2;
+	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
+	U8 VolumeBus, VolumeID;
+	int i, j, new_pool, pool_count[7];
+
+	if (mpt_lookup_volume(fd, name, &VolumeBus, &VolumeID) < 0) {
+		warn("Invalid volume %s", name);
+		return (-1);
+	}
+
+	info = mpt_vol_info(fd, VolumeBus, VolumeID, NULL);
+	if (info == NULL)
+		return (-1);
+
+	/*
+	 * Check for an existing pool other than pool 0 (used for
+	 * global spares).
+	 */
+	if ((info->VolumeSettings.HotSparePool & ~MPI_RAID_HOT_SPARE_POOL_0) !=
+	    0) {
+		*pool = 1 << (ffs(info->VolumeSettings.HotSparePool &
+		    ~MPI_RAID_HOT_SPARE_POOL_0) - 1);
+		return (0);
+	}
+	free(info);
+
+	/*
+	 * Try to find a free pool.  First, figure out which pools are
+	 * in use.
+	 */
+	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	if (ioc2 == NULL) {
+		warn("Failed to fetch volume list");
+		return (-1);
+	}
+	bzero(pool_count, sizeof(pool_count));	
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
+		info = mpt_vol_info(fd, vol->VolumeBus, vol->VolumeID, NULL);
+		if (info == NULL)
+			return (-1);
+		for (j = 0; j < 7; j++)
+			if (info->VolumeSettings.HotSparePool & (1 << (j + 1)))
+				pool_count[j]++;
+		free(info);
+	}
+	free(ioc2);
+
+	/* Find the pool with the lowest use count. */
+	new_pool = 0;
+	for (i = 1; i < 7; i++)
+		if (pool_count[i] < pool_count[new_pool])
+			new_pool = i;
+	new_pool++;
+
+	/* Add this pool to the volume. */
+	info = mpt_vol_info(fd, VolumeBus, VolumeID, NULL);
+	if (info == NULL)
+		return (-1);
+	info->VolumeSettings.HotSparePool |= (1 << new_pool);
+	if (mpt_raid_action(fd, MPI_RAID_ACTION_CHANGE_VOLUME_SETTINGS,
+	    VolumeBus, VolumeID, 0, *(U32 *)&info->VolumeSettings, NULL, 0,
+	    NULL, NULL, 0, NULL, NULL, 0) < 0) {
+		warnx("Failed to add spare pool %d to %s", new_pool,
+		    mpt_volume_name(VolumeBus, VolumeID));
+		return (-1);
+	}
+	free(info);
+
+	*pool = (1 << new_pool);
+	return (0);
+}
+
+static int
+add_spare(int ac, char **av)
+{
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
+	struct mpt_standalone_disk *sdisks;
+	struct mpt_drive_list *list;
+	U8 PhysDiskNum;
+	int error, fd, i, nsdisks, pool;
+
+	if (ac < 2) {
+		warnx("add spare: drive required");
+		return (EINVAL);
+	}
+	if (ac > 3) {
+		warnx("add spare: extra arguments");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	if (ac == 3) {
+		if (find_volume_spare_pool(fd, av[2], &pool) < 0)
+			return (errno);
+	} else
+		pool = MPI_RAID_HOT_SPARE_POOL_0;
+
+	list = mpt_pd_list(fd);
+	if (list == NULL)
+		return (errno);
+
+	error = mpt_lookup_drive(list, av[1], &PhysDiskNum);
+	if (error) {
+		error = mpt_fetch_disks(fd, &nsdisks, &sdisks);
+		if (error != 0) {
+			warn("Failed to fetch standalone disk list");
+			return (error);
+		}
+
+		if (mpt_lookup_standalone_disk(av[1], sdisks, nsdisks, &i) <
+		    0) {
+			warn("Unable to lookup drive %s", av[1]);
+			return (errno);
+		}
+
+		if (mpt_lock_physdisk(&sdisks[i]) < 0)
+			return (errno);
+
+		if (mpt_create_physdisk(fd, &sdisks[i], &PhysDiskNum) < 0) {
+			warn("Failed to create physical disk page");
+			return (errno);
+		}
+		free(sdisks);
+	}
+	mpt_free_pd_list(list);
+
+	info = mpt_pd_info(fd, PhysDiskNum, NULL);
+	if (info == NULL) {
+		warn("Failed to fetch drive info");
+		return (errno);
+	}
+
+	info->PhysDiskSettings.HotSparePool = pool;
+	error = mpt_raid_action(fd, MPI_RAID_ACTION_CHANGE_PHYSDISK_SETTINGS, 0,
+	    0, PhysDiskNum, *(U32 *)&info->PhysDiskSettings, NULL, 0, NULL,
+	    NULL, 0, NULL, NULL, 0);
+	if (error) {
+		warn("Failed to assign spare");
+		return (errno);
+	}
+
+	free(info);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(top, add, add_spare);
+
+static int
+remove_spare(int ac, char **av)
+{
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
+	struct mpt_drive_list *list;
+	U8 PhysDiskNum;
+	int error, fd;
+
+	if (ac != 2) {
+		warnx("remove spare: drive required");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	list = mpt_pd_list(fd);
+	if (list == NULL)
+		return (errno);
+
+	error = mpt_lookup_drive(list, av[1], &PhysDiskNum);
+	if (error) {
+		warn("Failed to find drive %s", av[1]);
+		return (error);
+	}
+	mpt_free_pd_list(list);
+
+	
+	info = mpt_pd_info(fd, PhysDiskNum, NULL);
+	if (info == NULL) {
+		warn("Failed to fetch drive info");
+		return (errno);
+	}
+
+	if (info->PhysDiskSettings.HotSparePool == 0) {
+		warnx("Drive %u is not a hot spare", PhysDiskNum);
+		return (EINVAL);
+	}
+
+	if (mpt_delete_physdisk(fd, PhysDiskNum) < 0) {
+		warn("Failed to delete physical disk page");
+		return (errno);
+	}
+
+	mpt_rescan_bus(info->PhysDiskBus, info->PhysDiskID);
+	free(info);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(top, remove, remove_spare);
+
+#ifdef DEBUG
+MPT_TABLE(top, pd);
+
+static int
+pd_create(int ac, char **av)
+{
+	struct mpt_standalone_disk *disks;
+	int error, fd, i, ndisks;
+	U8 PhysDiskNum;
+
+	if (ac != 2) {
+		warnx("pd create: drive required");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	error = mpt_fetch_disks(fd, &ndisks, &disks);
+	if (error != 0) {
+		warn("Failed to fetch standalone disk list");
+		return (error);
+	}
+
+	if (mpt_lookup_standalone_disk(av[1], disks, ndisks, &i) < 0) {
+		warn("Unable to lookup drive");
+		return (errno);
+	}
+
+	if (mpt_lock_physdisk(&disks[i]) < 0)
+		return (errno);
+
+	if (mpt_create_physdisk(fd, &disks[i], &PhysDiskNum) < 0) {
+		warn("Failed to create physical disk page");
+		return (errno);
+	}
+	free(disks);
+
+	printf("Added drive %s with PhysDiskNum %u\n", av[1], PhysDiskNum);
+
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(pd, create, pd_create);
+
+static int
+pd_delete(int ac, char **av)
+{
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
+	struct mpt_drive_list *list;
+	int fd;
+	U8 PhysDiskNum;
+
+	if (ac != 2) {
+		warnx("pd delete: drive required");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	list = mpt_pd_list(fd);
+	if (list == NULL)
+		return (errno);
+
+	if (mpt_lookup_drive(list, av[1], &PhysDiskNum) < 0) {
+		warn("Failed to find drive %s", av[1]);
+		return (errno);
+	}
+	mpt_free_pd_list(list);
+
+	info = mpt_pd_info(fd, PhysDiskNum, NULL);
+	if (info == NULL) {
+		warn("Failed to fetch drive info");
+		return (errno);
+	}
+
+	if (mpt_delete_physdisk(fd, PhysDiskNum) < 0) {
+		warn("Failed to delete physical disk page");
+		return (errno);
+	}
+
+	mpt_rescan_bus(info->PhysDiskBus, info->PhysDiskID);
+	free(info);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(pd, delete, pd_delete);
+
+/* Display raw data about a volume config. */
+static void
+dump_config(CONFIG_PAGE_RAID_VOL_0 *vol)
+{
+	int i;
+
+	printf("Volume Configuration (Debug):\n");
+	printf(
+   " Page Header: Type 0x%02x Number 0x%02x Length 0x%02x(%u) Version 0x%02x\n",
+	    vol->Header.PageType, vol->Header.PageNumber,
+	    vol->Header.PageLength, vol->Header.PageLength * 4,
+	    vol->Header.PageVersion);
+	printf("     Address: %d:%d IOC %d\n", vol->VolumeBus, vol->VolumeID,
+	    vol->VolumeIOC);
+	printf("        Type: %d (%s)\n", vol->VolumeType,
+	    mpt_raid_level(vol->VolumeType));
+	printf("      Status: %s (Flags 0x%02x)\n",
+	    mpt_volstate(vol->VolumeStatus.State), vol->VolumeStatus.Flags);
+	printf("    Settings: 0x%04x (Spare Pools 0x%02x)\n",
+	    vol->VolumeSettings.Settings, vol->VolumeSettings.HotSparePool);
+	printf("      MaxLBA: %ju\n", (uintmax_t)vol->MaxLBAHigh << 32 |
+	    vol->MaxLBA);
+	printf(" Stripe Size: %ld\n", (long)vol->StripeSize * 512);
+	printf(" %d Disks:\n", vol->NumPhysDisks);
+
+	for (i = 0; i < vol->NumPhysDisks; i++)
+		printf("    Disk %d: Num 0x%02x Map 0x%02x\n", i,
+		    vol->PhysDisk[i].PhysDiskNum, vol->PhysDisk[i].PhysDiskMap);
+}
+
+static int
+debug_config(int ac, char **av)
+{
+	CONFIG_PAGE_RAID_VOL_0 *vol;
+	U8 VolumeBus, VolumeID;
+	int fd;
+
+	if (ac != 2) {
+		warnx("debug: volume required");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	if (mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID) < 0) {
+		warn("Invalid volume: %s", av[1]);
+		return (errno);
+	}
+
+	vol = mpt_vol_info(fd, VolumeBus, VolumeID, NULL);
+	if (vol == NULL) {
+		warn("Failed to get volume info");
+		return (errno);
+	}
+
+	dump_config(vol);
+	free(vol);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(top, debug, debug_config);
+#endif
diff --git a/usr.sbin/mptutil/mpt_drive.c b/usr.sbin/mptutil/mpt_drive.c
new file mode 100644
index 000000000000..e941b967e5be
--- /dev/null
+++ b/usr.sbin/mptutil/mpt_drive.c
@@ -0,0 +1,395 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <ctype.h>
+#include <err.h>
+#include <libutil.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <unistd.h>
+
+#include <camlib.h>
+#include <cam/scsi/scsi_all.h>
+
+#include "mptutil.h"
+
+const char *
+mpt_pdstate(CONFIG_PAGE_RAID_PHYS_DISK_0 *info)
+{
+	static char buf[16];
+
+	switch (info->PhysDiskStatus.State) {
+	case MPI_PHYSDISK0_STATUS_ONLINE:
+		if ((info->PhysDiskStatus.Flags &
+		    MPI_PHYSDISK0_STATUS_FLAG_OUT_OF_SYNC) &&
+		    info->PhysDiskSettings.HotSparePool == 0)
+			return ("REBUILD");
+		else
+			return ("ONLINE");
+	case MPI_PHYSDISK0_STATUS_MISSING:
+		return ("MISSING");
+	case MPI_PHYSDISK0_STATUS_NOT_COMPATIBLE:
+		return ("NOT COMPATIBLE");
+	case MPI_PHYSDISK0_STATUS_FAILED:
+		return ("FAILED");
+	case MPI_PHYSDISK0_STATUS_INITIALIZING:
+		return ("INITIALIZING");
+	case MPI_PHYSDISK0_STATUS_OFFLINE_REQUESTED:
+		return ("OFFLINE REQUESTED");
+	case MPI_PHYSDISK0_STATUS_FAILED_REQUESTED:
+		return ("FAILED REQUESTED");
+	case MPI_PHYSDISK0_STATUS_OTHER_OFFLINE:
+		return ("OTHER OFFLINE");
+	default:
+		sprintf(buf, "PSTATE 0x%02x", info->PhysDiskStatus.State);
+		return (buf);
+	}
+}
+
+/*
+ * There are several ways to enumerate physical disks.  Unfortunately,
+ * none of them are truly complete, so we have to build a union of all of
+ * them.  Specifically:
+ * 
+ * - IOC2 : This gives us a list of volumes, and by walking the volumes we
+ *          can enumerate all of the drives attached to volumes including
+ *          online drives and failed drives.
+ * - IOC3 : This gives us a list of all online physical drives including
+ *          drives that are not part of a volume nor a spare drive.  It
+ *          does not include any failed drives.
+ * - IOC5 : This gives us a list of all spare drives including failed
+ *          spares.
+ *
+ * The specific edge cases are that 1) a failed volume member can only be
+ * found via IOC2, 2) a drive that is neither a volume member nor a spare
+ * can only be found via IOC3, and 3) a failed spare can only be found via
+ * IOC5.
+ *
+ * To handle this, walk all of the three lists and use the following
+ * routine to add each drive encountered.  It quietly succeeds if the
+ * drive is already present in the list.  It also sorts the list as it
+ * inserts new drives.
+ */
+static int
+mpt_pd_insert(int fd, struct mpt_drive_list *list, U8 PhysDiskNum)
+{
+	int i, j;
+
+	/*
+	 * First, do a simple linear search to see if we have already
+	 * seen this drive.
+	 */
+	for (i = 0; i < list->ndrives; i++) {
+		if (list->drives[i]->PhysDiskNum == PhysDiskNum)
+			return (0);
+		if (list->drives[i]->PhysDiskNum > PhysDiskNum)
+			break;
+	}
+
+	/*
+	 * 'i' is our slot for the 'new' drive.  Make room and then
+	 * read the drive info.
+	 */
+	for (j = list->ndrives - 1; j >= i; j--)
+		list->drives[j + 1] = list->drives[j];
+	list->drives[i] = mpt_pd_info(fd, PhysDiskNum, NULL);
+	if (list->drives[i] == NULL)
+		return (-1);
+	list->ndrives++;
+	return (0);
+}
+
+struct mpt_drive_list *
+mpt_pd_list(int fd)
+{
+	CONFIG_PAGE_IOC_2 *ioc2;
+	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
+	CONFIG_PAGE_RAID_VOL_0 **volumes;
+	RAID_VOL0_PHYS_DISK *rdisk;
+	CONFIG_PAGE_IOC_3 *ioc3;
+	IOC_3_PHYS_DISK *disk;
+	CONFIG_PAGE_IOC_5 *ioc5;
+	IOC_5_HOT_SPARE *spare;
+	struct mpt_drive_list *list;
+	int count, i, j;
+
+	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	if (ioc2 == NULL) {
+		warn("Failed to fetch volume list");
+		return (NULL);
+	}
+
+	ioc3 = mpt_read_ioc_page(fd, 3, NULL);
+	if (ioc3 == NULL) {
+		warn("Failed to fetch drive list");
+		free(ioc2);
+		return (NULL);
+	}
+
+	ioc5 = mpt_read_ioc_page(fd, 5, NULL);
+	if (ioc5 == NULL) {
+		warn("Failed to fetch spare list");
+		free(ioc3);
+		free(ioc2);
+		return (NULL);
+	}
+
+	/*
+	 * Go ahead and read the info for all the volumes.  For this
+	 * pass we figure out how many physical drives there are.
+	 */
+	volumes = malloc(sizeof(*volumes) * ioc2->NumActiveVolumes);
+	count = 0;
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
+		volumes[i] = mpt_vol_info(fd, vol->VolumeBus, vol->VolumeID,
+		    NULL);
+		if (volumes[i] == NULL) {
+			warn("Failed to read volume info");
+			return (NULL);
+		}
+		count += volumes[i]->NumPhysDisks;
+	}
+	count += ioc3->NumPhysDisks;
+	count += ioc5->NumHotSpares;
+
+	/* Walk the various lists enumerating drives. */
+	list = malloc(sizeof(*list) + sizeof(CONFIG_PAGE_RAID_PHYS_DISK_0) *
+	    count);
+	list->ndrives = 0;
+
+	for (i = 0; i < ioc2->NumActiveVolumes; i++) {
+		rdisk = volumes[i]->PhysDisk;
+		for (j = 0; j < volumes[i]->NumPhysDisks; rdisk++, j++)
+			if (mpt_pd_insert(fd, list, rdisk->PhysDiskNum) < 0)
+				return (NULL);
+		free(volumes[i]);
+	}
+	free(ioc2);
+	free(volumes);
+
+	spare = ioc5->HotSpare;
+	for (i = 0; i < ioc5->NumHotSpares; spare++, i++)
+		if (mpt_pd_insert(fd, list, spare->PhysDiskNum) < 0)
+			return (NULL);
+	free(ioc5);
+
+	disk = ioc3->PhysDisk;
+	for (i = 0; i < ioc3->NumPhysDisks; disk++, i++)
+		if (mpt_pd_insert(fd, list, disk->PhysDiskNum) < 0)
+			return (NULL);
+	free(ioc3);
+
+	return (list);
+}
+
+void
+mpt_free_pd_list(struct mpt_drive_list *list)
+{
+	int i;
+
+	for (i = 0; i < list->ndrives; i++)
+		free(list->drives[i]);
+	free(list);
+}
+
+int
+mpt_lookup_drive(struct mpt_drive_list *list, const char *drive,
+    U8 *PhysDiskNum)
+{
+	long val;
+	uint8_t bus, id;
+	char *cp;
+
+	/* Look for a raw device id first. */
+	val = strtol(drive, &cp, 0);
+	if (*cp == '\0') {
+		if (val < 0 || val > 0xff)
+			goto bad;
+		*PhysDiskNum = val;
+		return (0);
+	}
+
+	/* Look for a <bus>:<id> string. */
+	if (*cp == ':') {
+		if (val < 0 || val > 0xff)
+			goto bad;
+		bus = val;
+		val = strtol(cp + 1, &cp, 0);
+		if (*cp != '\0')
+			goto bad;
+		if (val < 0 || val > 0xff)
+			goto bad;
+		id = val;
+
+		for (val = 0; val < list->ndrives; val++) {
+			if (list->drives[val]->PhysDiskBus == bus &&
+			    list->drives[val]->PhysDiskID == id) {
+				*PhysDiskNum = list->drives[val]->PhysDiskNum;
+				return (0);
+			}
+		}
+		errno = ENOENT;
+		return (-1);
+	}
+
+bad:
+	errno = EINVAL;
+	return (-1);
+}
+
+/* Borrowed heavily from scsi_all.c:scsi_print_inquiry(). */
+const char *
+mpt_pd_inq_string(CONFIG_PAGE_RAID_PHYS_DISK_0 *pd_info)
+{
+	RAID_PHYS_DISK0_INQUIRY_DATA *inq_data;
+	u_char vendor[9], product[17], revision[5];
+	static char inq_string[64];
+
+	inq_data = &pd_info->InquiryData;
+	cam_strvis(vendor, inq_data->VendorID, sizeof(inq_data->VendorID),
+	    sizeof(vendor));
+	cam_strvis(product, inq_data->ProductID, sizeof(inq_data->ProductID),
+	    sizeof(product));
+	cam_strvis(revision, inq_data->ProductRevLevel,
+	    sizeof(inq_data->ProductRevLevel), sizeof(revision));
+
+	/* Total hack. */
+	if (strcmp(vendor, "ATA") == 0)
+		snprintf(inq_string, sizeof(inq_string), "<%s %s> SATA",
+		    product, revision);
+	else
+		snprintf(inq_string, sizeof(inq_string), "<%s %s %s> SAS",
+		    vendor, product, revision);
+	return (inq_string);
+}
+
+/* Helper function to set a drive to a given state. */
+static int
+drive_set_state(char *drive, U8 Action, U8 State, const char *name)
+{
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
+	struct mpt_drive_list *list;
+	U8 PhysDiskNum;
+	int fd;
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	list = mpt_pd_list(fd);
+	if (list == NULL)
+		return (errno);
+
+	if (mpt_lookup_drive(list, drive, &PhysDiskNum) < 0) {
+		warn("Failed to find drive %s", drive);
+		return (errno);
+	}
+	mpt_free_pd_list(list);
+
+	/* Get the info for this drive. */
+	info = mpt_pd_info(fd, PhysDiskNum, NULL);
+	if (info == NULL) {
+		warn("Failed to fetch info for drive %u", PhysDiskNum);
+		return (errno);
+	}
+
+	/* Try to change the state. */
+	if (info->PhysDiskStatus.State == State) {
+		warnx("Drive %u is already in the desired state", PhysDiskNum);
+		return (EINVAL);
+	}
+
+	if (mpt_raid_action(fd, Action, 0, 0, PhysDiskNum, 0, NULL, 0, NULL,
+	    NULL, 0, NULL, NULL, 0) < 0) {
+		warn("Failed to set drive %u to %s", PhysDiskNum, name);
+		return (errno);
+	}
+
+	free(info);
+	close(fd);
+
+	return (0);
+}
+
+static int
+fail_drive(int ac, char **av)
+{
+
+	if (ac != 2) {
+		warnx("fail: %s", ac > 2 ? "extra arguments" :
+		    "drive required");
+		return (EINVAL);
+	}
+
+	return (drive_set_state(av[1], MPI_RAID_ACTION_FAIL_PHYSDISK,
+	    MPI_PHYSDISK0_STATUS_FAILED_REQUESTED, "FAILED"));
+}
+MPT_COMMAND(top, fail, fail_drive);
+
+static int
+online_drive(int ac, char **av)
+{
+
+	if (ac != 2) {
+		warnx("online: %s", ac > 2 ? "extra arguments" :
+		    "drive required");
+		return (EINVAL);
+	}
+
+	return (drive_set_state(av[1], MPI_RAID_ACTION_PHYSDISK_ONLINE,
+	    MPI_PHYSDISK0_STATUS_ONLINE, "ONLINE"));
+}
+MPT_COMMAND(top, online, online_drive);
+
+static int
+offline_drive(int ac, char **av)
+{
+
+	if (ac != 2) {
+		warnx("offline: %s", ac > 2 ? "extra arguments" :
+		    "drive required");
+		return (EINVAL);
+	}
+
+	return (drive_set_state(av[1], MPI_RAID_ACTION_PHYSDISK_OFFLINE,
+	    MPI_PHYSDISK0_STATUS_OFFLINE_REQUESTED, "OFFLINE"));
+}
+MPT_COMMAND(top, offline, offline_drive);
diff --git a/usr.sbin/mptutil/mpt_evt.c b/usr.sbin/mptutil/mpt_evt.c
new file mode 100644
index 000000000000..4b64352e42df
--- /dev/null
+++ b/usr.sbin/mptutil/mpt_evt.c
@@ -0,0 +1,155 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <ctype.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "mptutil.h"
+
+static CONFIG_PAGE_LOG_0 *
+mpt_get_events(int fd, U16 *IOCStatus)
+{
+
+	return (mpt_read_extended_config_page(fd, MPI_CONFIG_EXTPAGETYPE_LOG,
+	    0, 0, 0, IOCStatus));
+}
+
+/*
+ *          1         2         3         4         5         6         7
+ * 1234567890123456789012345678901234567890123456789012345678901234567890
+ * < ID> < time > <ty> <X XX XX XX XX XX XX XX XX XX XX XX XX XX |..............|
+ *  ID     Time   Type Log Data
+ */
+static void
+mpt_print_event(MPI_LOG_0_ENTRY *entry, int verbose)
+{
+	int i;
+
+	printf("%5d %7ds %4x ", entry->LogSequence, entry->TimeStamp,
+	    entry->LogEntryQualifier);
+	for (i = 0; i < 14; i++)
+		printf("%02x ", entry->LogData[i]);
+	printf("|");
+	for (i = 0; i < 14; i++)
+		printf("%c", isprint(entry->LogData[i]) ? entry->LogData[i] :
+		    '.');
+	printf("|\n");
+	printf("                    ");
+	for (i = 0; i < 14; i++)
+		printf("%02x ", entry->LogData[i + 14]);
+	printf("|");
+	for (i = 0; i < 14; i++)
+		printf("%c", isprint(entry->LogData[i + 14]) ?
+		    entry->LogData[i + 14] : '.');
+	printf("|\n");
+}
+
+static int
+event_compare(const void *first, const void *second)
+{
+	MPI_LOG_0_ENTRY * const *one;
+	MPI_LOG_0_ENTRY * const *two;
+
+	one = first;
+	two = second;
+	return ((*one)->LogSequence - ((*two)->LogSequence));
+}
+
+static int
+show_events(int ac, char **av)
+{
+	CONFIG_PAGE_LOG_0 *log;
+	MPI_LOG_0_ENTRY **entries;
+	int ch, fd, i, num_events, verbose;
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	log = mpt_get_events(fd, NULL);
+	if (log == NULL) {
+		warn("Failed to get event log info");
+		return (errno);
+	}
+
+	/* Default settings. */
+	verbose = 0;
+
+	/* Parse any options. */
+	optind = 1;
+	while ((ch = getopt(ac, av, "v")) != -1) {
+		switch (ch) {
+		case 'v':
+			verbose = 1;
+			break;
+		case '?':
+		default:
+			return (EINVAL);
+		}
+	}
+	ac -= optind;
+	av += optind;
+
+	/* Build a list of valid entries and sort them by sequence. */
+	entries = malloc(sizeof(MPI_LOG_0_ENTRY *) * log->NumLogEntries);
+	num_events = 0;
+	for (i = 0; i < log->NumLogEntries; i++) {
+		if (log->LogEntry[i].LogEntryQualifier ==
+		    MPI_LOG_0_ENTRY_QUAL_ENTRY_UNUSED)
+			continue;
+		entries[num_events] = &log->LogEntry[i];
+		num_events++;
+	}
+
+	qsort(entries, num_events, sizeof(MPI_LOG_0_ENTRY *), event_compare);
+
+	if (num_events == 0)
+		printf("Event log is empty\n");
+	else {
+		printf(" ID     Time   Type Log Data\n");
+		for (i = 0; i < num_events; i++)
+			mpt_print_event(entries[i], verbose);
+	}
+	
+	free(entries);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(show, events, show_events);
diff --git a/usr.sbin/mptutil/mpt_show.c b/usr.sbin/mptutil/mpt_show.c
new file mode 100644
index 000000000000..e0b6b74d136d
--- /dev/null
+++ b/usr.sbin/mptutil/mpt_show.c
@@ -0,0 +1,559 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <err.h>
+#include <libutil.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "mptutil.h"
+
+MPT_TABLE(top, show);
+
+#define	STANDALONE_STATE	"ONLINE"
+
+static void
+format_stripe(char *buf, size_t buflen, U32 stripe)
+{
+
+	humanize_number(buf, buflen, stripe * 512, "", HN_AUTOSCALE,
+	    HN_B | HN_NOSPACE);
+}
+
+static void
+display_stripe_map(const char *label, U32 StripeMap)
+{
+	char stripe[5];
+	int comma, i;
+
+	comma = 0;
+	printf("%s: ", label);
+	for (i = 0; StripeMap != 0; i++, StripeMap >>= 1)
+		if (StripeMap & 1) {
+			format_stripe(stripe, sizeof(stripe), 1 << i);
+			if (comma)
+				printf(", ");
+			printf("%s", stripe);
+			comma = 1;
+		}
+	printf("\n");
+}
+
+static int
+show_adapter(int ac, char **av)
+{
+	CONFIG_PAGE_MANUFACTURING_0 *man0;
+	CONFIG_PAGE_IOC_2 *ioc2;
+	CONFIG_PAGE_IOC_6 *ioc6;
+	int fd, comma;
+
+	if (ac != 1) {
+		warnx("show adapter: extra arguments");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	man0 = mpt_read_man_page(fd, 0, NULL);
+	if (man0 == NULL) {
+		warn("Failed to get controller info");
+		return (errno);
+	}
+	if (man0->Header.PageLength < sizeof(*man0) / 4) {
+		warn("Invalid controller info");
+		return (EINVAL);
+	}
+	printf("mpt%d Adapter:\n", mpt_unit);
+	printf("       Board Name: %.16s\n", man0->BoardName);
+	printf("   Board Assembly: %.16s\n", man0->BoardAssembly);
+	printf("        Chip Name: %.16s\n", man0->ChipName);
+	printf("    Chip Revision: %.16s\n", man0->ChipRevision);
+
+	free(man0);
+
+	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	if (ioc2 != NULL) {
+		printf("      RAID Levels:");
+		comma = 0;
+		if (ioc2->CapabilitiesFlags &
+		    MPI_IOCPAGE2_CAP_FLAGS_IS_SUPPORT) {
+			printf(" RAID0");
+			comma = 1;
+		}
+		if (ioc2->CapabilitiesFlags &
+		    MPI_IOCPAGE2_CAP_FLAGS_IM_SUPPORT) {
+			printf("%s RAID1", comma ? "," : "");
+			comma = 1;
+		}
+		if (ioc2->CapabilitiesFlags &
+		    MPI_IOCPAGE2_CAP_FLAGS_IME_SUPPORT) {
+			printf("%s RAID1E", comma ? "," : "");
+			comma = 1;
+		}
+		if (ioc2->CapabilitiesFlags &
+		    MPI_IOCPAGE2_CAP_FLAGS_RAID_5_SUPPORT) {
+			printf("%s RAID5", comma ? "," : "");
+			comma = 1;
+		}
+		if (ioc2->CapabilitiesFlags &
+		    MPI_IOCPAGE2_CAP_FLAGS_RAID_6_SUPPORT) {
+			printf("%s RAID6", comma ? "," : "");
+			comma = 1;
+		}
+		if (ioc2->CapabilitiesFlags &
+		    MPI_IOCPAGE2_CAP_FLAGS_RAID_10_SUPPORT) {
+			printf("%s RAID10", comma ? "," : "");
+			comma = 1;
+		}
+		if (ioc2->CapabilitiesFlags &
+		    MPI_IOCPAGE2_CAP_FLAGS_RAID_50_SUPPORT) {
+			printf("%s RAID50", comma ? "," : "");
+			comma = 1;
+		}
+		if (!comma)
+			printf(" none");
+		printf("\n");
+		free(ioc2);
+	}
+
+	ioc6 = mpt_read_ioc_page(fd, 6, NULL);
+	if (ioc6 != NULL) {
+		display_stripe_map("    RAID0 Stripes",
+		    ioc6->SupportedStripeSizeMapIS);
+		display_stripe_map("   RAID1E Stripes",
+		    ioc6->SupportedStripeSizeMapIME);
+		printf(" RAID0 Drives/Vol: %u", ioc6->MinDrivesIS);
+		if (ioc6->MinDrivesIS != ioc6->MaxDrivesIS)
+			printf("-%u", ioc6->MaxDrivesIS);
+		printf("\n");
+		printf(" RAID1 Drives/Vol: %u", ioc6->MinDrivesIM);
+		if (ioc6->MinDrivesIM != ioc6->MaxDrivesIM)
+			printf("-%u", ioc6->MaxDrivesIM);
+		printf("\n");
+		printf("RAID1E Drives/Vol: %u", ioc6->MinDrivesIME);
+		if (ioc6->MinDrivesIME != ioc6->MaxDrivesIME)
+			printf("-%u", ioc6->MaxDrivesIME);
+		printf("\n");
+		free(ioc6);
+	}
+
+	/* TODO: Add an ioctl to fetch IOC_FACTS and print firmware version. */
+
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(show, adapter, show_adapter);
+
+static void
+print_vol(CONFIG_PAGE_RAID_VOL_0 *info, int state_len)
+{
+	uint64_t size;
+	const char *level, *state;
+	char buf[6], stripe[5];
+
+	size = ((uint64_t)info->MaxLBAHigh << 32) | info->MaxLBA;
+	humanize_number(buf, sizeof(buf), (size + 1) * 512, "", HN_AUTOSCALE,
+	    HN_B | HN_NOSPACE | HN_DECIMAL);
+	if (info->VolumeType == MPI_RAID_VOL_TYPE_IM)
+		stripe[0] = '\0';
+	else
+		format_stripe(stripe, sizeof(stripe), info->StripeSize);
+	level = mpt_raid_level(info->VolumeType);
+	state = mpt_volstate(info->VolumeStatus.State);
+	if (state_len > 0)
+		printf("(%6s) %-8s %6s %-*s", buf, level, stripe, state_len,
+		    state);
+	else if (stripe[0] != '\0')
+		printf("(%s) %s %s %s", buf, level, stripe, state);
+	else
+		printf("(%s) %s %s", buf, level, state);
+}
+
+static void
+print_pd(CONFIG_PAGE_RAID_PHYS_DISK_0 *info, int state_len, int location)
+{
+	const char *inq, *state;
+	char buf[6];
+
+	humanize_number(buf, sizeof(buf), ((uint64_t)info->MaxLBA + 1) * 512,
+	    "", HN_AUTOSCALE, HN_B | HN_NOSPACE |HN_DECIMAL);
+	state = mpt_pdstate(info);
+	if (state_len > 0)
+		printf("(%6s) %-*s", buf, state_len, state);
+	else
+		printf("(%s) %s", buf, state);
+	inq = mpt_pd_inq_string(info);
+	if (inq != NULL)
+		printf(" %s", inq);
+	if (!location)
+		return;
+	printf(" bus %d id %d", info->PhysDiskBus, info->PhysDiskID);
+}
+
+static void
+print_standalone(struct mpt_standalone_disk *disk, int state_len, int location)
+{
+	char buf[6];
+
+	humanize_number(buf, sizeof(buf), (disk->maxlba + 1) * 512,
+	    "", HN_AUTOSCALE, HN_B | HN_NOSPACE |HN_DECIMAL);
+	if (state_len > 0)
+		printf("(%6s) %-*s", buf, state_len, STANDALONE_STATE);
+	else
+		printf("(%s) %s", buf, STANDALONE_STATE);
+	if (disk->inqstring[0] != '\0')
+		printf(" %s", disk->inqstring);
+	if (!location)
+		return;
+	printf(" bus %d id %d", disk->bus, disk->target);
+}
+
+static void
+print_spare_pools(U8 HotSparePool)
+{
+	int i;
+
+	if (HotSparePool == 0) {
+		printf("none");
+		return;
+	}
+	for (i = 0; HotSparePool != 0; i++) {
+		if (HotSparePool & 1) {
+			printf("%d", i);
+			if (HotSparePool == 1)
+				break;
+			printf(", ");
+		}
+		HotSparePool >>= 1;
+	}
+}
+
+static int
+show_config(int ac, char **av)
+{
+	CONFIG_PAGE_IOC_2 *ioc2;
+	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
+	CONFIG_PAGE_IOC_5 *ioc5;
+	IOC_5_HOT_SPARE *spare;
+	CONFIG_PAGE_RAID_VOL_0 *vinfo;
+	RAID_VOL0_PHYS_DISK *disk;
+	CONFIG_PAGE_RAID_VOL_1 *vnames;
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *pinfo;
+	struct mpt_standalone_disk *sdisks;
+	int fd, i, j, nsdisks;
+
+	if (ac != 1) {
+		warnx("show config: extra arguments");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	/* Get the config from the controller. */
+	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	ioc5 = mpt_read_ioc_page(fd, 5, NULL);
+	if (ioc2 == NULL || ioc5 == NULL) {
+		warn("Failed to get config");
+		return (errno);
+	}
+	if (mpt_fetch_disks(fd, &nsdisks, &sdisks) < 0) {
+		warn("Failed to get standalone drive list");
+		return (errno);
+	}
+
+	/* Dump out the configuration. */
+	printf("mpt%d Configuration: %d volumes, %d drives\n",
+	    mpt_unit, ioc2->NumActiveVolumes, ioc2->NumActivePhysDisks +
+	    nsdisks);
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
+		printf("    volume %s ", mpt_volume_name(vol->VolumeBus,
+		    vol->VolumeID));
+		vinfo = mpt_vol_info(fd, vol->VolumeBus, vol->VolumeID, NULL);
+		if (vinfo == NULL) {
+			printf("%s UNKNOWN", mpt_raid_level(vol->VolumeType));
+		} else
+			print_vol(vinfo, -1);
+		vnames = mpt_vol_names(fd, vol->VolumeBus, vol->VolumeID, NULL);
+		if (vnames != NULL) {
+			if (vnames->Name[0] != '\0')
+				printf(" <%s>", vnames->Name);
+			free(vnames);
+		}
+		if (vinfo == NULL) {
+			printf("\n");
+			continue;
+		}
+		printf(" spans:\n");
+		disk = vinfo->PhysDisk;
+		for (j = 0; j < vinfo->NumPhysDisks; disk++, j++) {
+			printf("        drive %u ", disk->PhysDiskNum);
+			pinfo = mpt_pd_info(fd, disk->PhysDiskNum, NULL);
+			if (pinfo != NULL) {
+				print_pd(pinfo, -1, 0);
+				free(pinfo);
+			}
+			printf("\n");
+		}
+		if (vinfo->VolumeSettings.HotSparePool != 0) {
+			printf("        spare pools: ");
+			print_spare_pools(vinfo->VolumeSettings.HotSparePool);
+			printf("\n");
+		}
+		free(vinfo);
+	}
+
+	spare = ioc5->HotSpare;
+	for (i = 0; i < ioc5->NumHotSpares; spare++, i++) {
+		printf("    spare %u ", spare->PhysDiskNum);
+		pinfo = mpt_pd_info(fd, spare->PhysDiskNum, NULL);
+		if (pinfo != NULL) {
+			print_pd(pinfo, -1, 0);
+			free(pinfo);
+		}
+		printf(" backs pool %d\n", ffs(spare->HotSparePool) - 1);
+	}
+	for (i = 0; i < nsdisks; i++) {
+		printf("    drive %s ", sdisks[i].devname);
+		print_standalone(&sdisks[i], -1, 0);
+		printf("\n");
+	}
+	free(ioc2);
+	free(ioc5);
+	free(sdisks);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(show, config, show_config);
+
+static int
+show_volumes(int ac, char **av)
+{
+	CONFIG_PAGE_IOC_2 *ioc2;
+	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
+	CONFIG_PAGE_RAID_VOL_0 **volumes;
+	CONFIG_PAGE_RAID_VOL_1 *vnames;
+	int fd, i, len, state_len;
+
+	if (ac != 1) {
+		warnx("show volumes: extra arguments");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	/* Get the volume list from the controller. */
+	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
+	if (ioc2 == NULL) {
+		warn("Failed to get volume list");
+		return (errno);
+	}
+
+	/*
+	 * Go ahead and read the info for all the volumes and figure
+	 * out the maximum width of the state field.
+	 */
+	volumes = malloc(sizeof(*volumes) * ioc2->NumActiveVolumes);
+	state_len = strlen("State");
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
+		volumes[i] = mpt_vol_info(fd, vol->VolumeBus, vol->VolumeID,
+		    NULL);
+		if (volumes[i] == NULL)
+			len = strlen("UNKNOWN");
+		else
+			len = strlen(mpt_volstate(
+			    volumes[i]->VolumeStatus.State));
+		if (len > state_len)
+			state_len = len;
+	}
+	printf("mpt%d Volumes:\n", mpt_unit);
+	printf("  Id     Size    Level   Stripe ");
+	len = state_len - strlen("State");
+	for (i = 0; i < (len + 1) / 2; i++)
+		printf(" ");
+	printf("State");
+	for (i = 0; i < len / 2; i++)
+		printf(" ");
+	printf(" Write-Cache  Name\n");
+	vol = ioc2->RaidVolume;
+	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
+		printf("%6s ", mpt_volume_name(vol->VolumeBus, vol->VolumeID));
+		if (volumes[i] != NULL)
+			print_vol(volumes[i], state_len);
+		else
+			printf("         %-8s %-*s",
+			    mpt_raid_level(vol->VolumeType), state_len,
+			    "UNKNOWN");
+		if (volumes[i] != NULL) {
+			if (volumes[i]->VolumeSettings.Settings &
+			    MPI_RAIDVOL0_SETTING_WRITE_CACHING_ENABLE)
+				printf("   Enabled   ");
+			else
+				printf("   Disabled  ");
+		} else
+			printf("             ");
+		free(volumes[i]);
+		vnames = mpt_vol_names(fd, vol->VolumeBus, vol->VolumeID, NULL);
+		if (vnames != NULL) {
+			if (vnames->Name[0] != '\0')
+				printf(" <%s>", vnames->Name);
+			free(vnames);
+		}
+		printf("\n");
+	}
+	free(ioc2);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(show, volumes, show_volumes);
+
+static int
+show_drives(int ac, char **av)
+{
+	struct mpt_drive_list *list;
+	struct mpt_standalone_disk *sdisks;
+	int fd, i, len, nsdisks, state_len;
+
+	if (ac != 1) {
+		warnx("show drives: extra arguments");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	/* Get the drive list. */
+	list = mpt_pd_list(fd);
+	if (list == NULL) {
+		warn("Failed to get drive list");
+		return (errno);
+	}
+
+	/* Fetch the list of standalone disks for this controller. */
+	state_len = 0;
+	if (mpt_fetch_disks(fd, &nsdisks, &sdisks) != 0) {
+		nsdisks = 0;
+		sdisks = NULL;
+	}
+	if (nsdisks != 0)
+		state_len = strlen(STANDALONE_STATE);
+
+	/* Walk the drive list to determine width of state column. */
+	for (i = 0; i < list->ndrives; i++) {
+		len = strlen(mpt_pdstate(list->drives[i]));
+		if (len > state_len)
+			state_len = len;
+	}
+
+	/* List the drives. */
+	printf("mpt%d Physical Drives:\n", mpt_unit);
+	for (i = 0; i < list->ndrives; i++) {
+		printf("%4u ", list->drives[i]->PhysDiskNum);
+		print_pd(list->drives[i], state_len, 1);
+		printf("\n");
+	}
+	mpt_free_pd_list(list);
+	for (i = 0; i < nsdisks; i++) {
+		printf("%4s ", sdisks[i].devname);
+		print_standalone(&sdisks[i], state_len, 1);
+		printf("\n");
+	}
+	free(sdisks);
+
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(show, drives, show_drives);
+
+#ifdef DEBUG
+static int
+show_physdisks(int ac, char **av)
+{
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *pinfo;
+	U16 IOCStatus;
+	int fd, i;
+
+	if (ac != 1) {
+		warnx("show drives: extra arguments");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	/* Try to find each possible phys disk page. */
+	for (i = 0; i <= 0xff; i++) {
+		pinfo = mpt_pd_info(fd, i, &IOCStatus);
+		if (pinfo == NULL) {
+			if (IOCStatus != MPI_IOCSTATUS_CONFIG_INVALID_PAGE)
+				warnx("mpt_pd_info(%d): %s", i,
+				    mpt_ioc_status(IOCStatus));
+			continue;
+		}
+		printf("%3u ", i);
+		print_pd(pinfo, -1, 1);
+		printf("\n");
+	}
+
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(show, pd, show_physdisks);
+#endif
diff --git a/usr.sbin/mptutil/mpt_volume.c b/usr.sbin/mptutil/mpt_volume.c
new file mode 100644
index 000000000000..04adcb7c9874
--- /dev/null
+++ b/usr.sbin/mptutil/mpt_volume.c
@@ -0,0 +1,248 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <err.h>
+#include <libutil.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <ctype.h>
+#include "mptutil.h"
+
+MPT_TABLE(top, volume);
+
+const char *
+mpt_volstate(U8 State)
+{
+	static char buf[16];
+
+	switch (State) {
+	case MPI_RAIDVOL0_STATUS_STATE_OPTIMAL:
+		return ("OPTIMAL");
+	case MPI_RAIDVOL0_STATUS_STATE_DEGRADED:
+		return ("DEGRADED");
+	case MPI_RAIDVOL0_STATUS_STATE_FAILED:
+		return ("FAILED");
+	case MPI_RAIDVOL0_STATUS_STATE_MISSING:
+		return ("MISSING");
+	default:
+		sprintf(buf, "VSTATE 0x%02x", State);
+		return (buf);
+	}
+}
+
+static int
+volume_name(int ac, char **av)
+{
+	CONFIG_PAGE_RAID_VOL_1 *vnames;
+	U8 VolumeBus, VolumeID;
+	int fd;
+
+	if (ac != 3) {
+		warnx("name: volume and name required");
+		return (EINVAL);
+	}
+
+	if (strlen(av[2]) >= sizeof(vnames->Name)) {
+		warnx("name: new name is too long");
+		return (ENOSPC);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	if (mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID) < 0) {
+		warn("Invalid volume: %s", av[1]);
+		return (errno);
+	}
+
+	vnames = mpt_vol_names(fd, VolumeBus, VolumeID, NULL);
+	if (vnames == NULL) {
+		warn("Failed to fetch volume names");
+		return (errno);
+	}
+
+	if (vnames->Header.PageType != MPI_CONFIG_PAGEATTR_CHANGEABLE) {
+		warnx("Volume name is read only");
+		return (EOPNOTSUPP);
+	}
+	printf("mpt%u changing volume %s name from \"%s\" to \"%s\"\n",
+	    mpt_unit, mpt_volume_name(VolumeBus, VolumeID), vnames->Name,
+	    av[2]);
+	bzero(vnames->Name, sizeof(vnames->Name));
+	strcpy(vnames->Name, av[2]);
+
+	if (mpt_write_config_page(fd, vnames, NULL) < 0) {
+		warn("Failed to set volume name");
+		return (errno);
+	}
+
+	free(vnames);
+	close(fd);
+
+	return (0);
+}
+MPT_COMMAND(top, name, volume_name);
+
+static int
+volume_status(int ac, char **av)
+{
+	MPI_RAID_VOL_INDICATOR prog;
+	RAID_VOL0_STATUS VolumeStatus;
+	uint64_t total, remaining;
+	float pct;
+	U8 VolumeBus, VolumeID;
+	int fd;
+
+	if (ac != 2) {
+		warnx("volume status: %s", ac > 2 ? "extra arguments" :
+		    "volume required");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	if (mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID) < 0) {
+		warn("Invalid volume: %s", av[1]);
+		return (errno);
+	}
+
+	if (mpt_raid_action(fd, MPI_RAID_ACTION_INDICATOR_STRUCT, VolumeBus,
+	    VolumeID, 0, 0, NULL, 0, &VolumeStatus, (U32 *)&prog, sizeof(prog),
+	    NULL, NULL, 0) < 0) {
+		warn("Fetching volume status failed");
+		return (errno);
+	}
+
+	printf("Volume %s status:\n", mpt_volume_name(VolumeBus, VolumeID));
+	printf("    state: %s\n", mpt_volstate(VolumeStatus.State));
+	printf("    flags:");
+	if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_ENABLED)
+		printf(" ENABLED");
+	else
+		printf(" DISABLED");
+	if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_QUIESCED)
+		printf(", QUIESCED");
+	if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)
+		printf(", REBUILDING");
+	if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_VOLUME_INACTIVE)
+		printf(", INACTIVE");
+	if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_BAD_BLOCK_TABLE_FULL)
+		printf(", BAD BLOCK TABLE FULL");
+	printf("\n");
+	if (VolumeStatus.Flags & MPI_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
+		total = (uint64_t)prog.TotalBlocks.High << 32 |
+		    prog.TotalBlocks.Low;
+		remaining = (uint64_t)prog.BlocksRemaining.High << 32 |
+		    prog.BlocksRemaining.Low;
+		pct = (float)(total - remaining) * 100 / total;
+		printf("   resync: %.2f%% complete\n", pct);
+	}
+
+	close(fd);
+	return (0);
+}
+MPT_COMMAND(volume, status, volume_status);
+
+static int
+volume_cache(int ac, char **av)
+{
+	CONFIG_PAGE_RAID_VOL_0 *volume;
+	U32 Settings, NewSettings;
+	U8 VolumeBus, VolumeID;
+	char *s1;
+	int fd;
+
+	if (ac != 3) {
+		warnx("volume cache: %s", ac > 3 ? "extra arguments" :
+		    "volume required");
+		return (EINVAL);
+	}
+
+        for (s1 = av[2]; *s1 != '\0'; s1++)
+                *s1 = tolower(*s1);
+	if ((strcmp(av[2], "enable")) && (strcmp(av[2], "enabled")) &&
+	    (strcmp(av[2], "disable")) && (strcmp(av[2], "disabled"))) {
+		warnx("volume cache: invalid flag, must be 'enable' or 'disable'\n");
+		return (EINVAL);
+	}
+
+	fd = mpt_open(mpt_unit);
+	if (fd < 0) {
+		warn("mpt_open");
+		return (errno);
+	}
+
+	if (mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID) < 0) {
+		warn("Invalid volume: %s", av[1]);
+		return (errno);
+	}
+
+	volume = mpt_vol_info(fd, VolumeBus, VolumeID, NULL);
+	if (volume == NULL)
+		return (-1);
+
+	Settings = volume->VolumeSettings.Settings;
+
+	NewSettings = Settings;
+	if (strncmp(av[2], "enable", sizeof("enable")) == 0)
+		NewSettings |= 0x01;
+	if (strncmp(av[2], "disable", sizeof("disable")) == 0)
+		NewSettings &= ~0x01;
+
+	if (NewSettings == Settings) {
+		warnx("volume cache unchanged\n");
+		close(fd);
+		return (0);
+	}
+
+	volume->VolumeSettings.Settings = NewSettings;
+	if (mpt_raid_action(fd, MPI_RAID_ACTION_CHANGE_VOLUME_SETTINGS,
+	    VolumeBus, VolumeID, 0, *(U32 *)&volume->VolumeSettings, NULL, 0,
+	    NULL, NULL, 0, NULL, NULL, 0) < 0)
+		warnx("volume cache change failed, errno= %d\n", errno);
+
+	close(fd);
+	return (0);
+}
+MPT_COMMAND(volume, cache, volume_cache);
diff --git a/usr.sbin/mptutil/mptutil.8 b/usr.sbin/mptutil/mptutil.8
new file mode 100644
index 000000000000..fcc34e8a1623
--- /dev/null
+++ b/usr.sbin/mptutil/mptutil.8
@@ -0,0 +1,383 @@
+.\"
+.\" Copyright (c) 2008 Yahoo!, Inc.
+.\" All rights reserved.
+.\" Written by: John Baldwin <jhb@FreeBSD.org>
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd August 22, 2008
+.Dt MPTUTIL 8
+.Os
+.Sh NAME
+.Nm mptutil
+.Nd Utility for managing LSI Fusion-MPT controllers
+.Sh SYNOPSIS
+.Nm
+.Cm version
+.Nm
+.Op Fl u Ar unit
+.Cm show adapter
+.Nm
+.Op Fl u Ar unit
+.Cm show config
+.Nm
+.Op Fl u Ar unit
+.Cm show drives
+.Nm
+.Op Fl u Ar unit
+.Cm show events
+.Nm
+.Op Fl u Ar unit
+.Cm show volumes
+.Nm
+.Op Fl u Ar unit
+.Cm fail Ar drive
+.Nm
+.Op Fl u Ar unit
+.Cm online Ar drive
+.Nm
+.Op Fl u Ar unit
+.Cm offline Ar drive
+.Nm
+.Op Fl u Ar unit
+.Cm name Ar volume Ar name
+.Nm
+.Op Fl u Ar unit
+.Cm volume status Ar volume
+.Nm
+.Op Fl u Ar unit
+.Cm volume cache Ar volume 
+.Ar enable|disable
+.Nm
+.Op Fl u Ar unit
+.Cm clear
+.Nm
+.Op Fl u Ar unit
+.Cm create Ar type
+.Op Fl q
+.Op Fl v
+.Op Fl s Ar stripe_size
+.Ar drive Ns Op \&, Ns Ar drive Ns Op ",..."
+.Nm
+.Op Fl u Ar unit
+.Cm delete Ar volume
+.Nm
+.Op Fl u Ar unit
+.Cm add Ar drive Op Ar volume
+.Nm
+.Op Fl u Ar unit
+.Cm remove Ar drive
+.Sh DESCRIPTION
+The
+.Nm
+utility can be used to display or modify various parameters on LSI
+Fusion-MPT controllers.
+Each invocation of
+.Nm
+consists of zero or more global options followed by a command.
+Commands may support additional optional or required arguments after the
+command.
+.Pp
+Currently one global option is supported:
+.Bl -tag -width indent
+.It Fl u Ar unit
+.Ar unit
+specifies the unit of the controller to work with.
+If no unit is specified,
+then unit 0 is used.
+.El
+.Pp
+Volumes may be specified in two forms.
+First,
+a volume may be identified by its location as
+.Sm off
+.Op Ar xx Ns \&:
+.Ar yy
+.Sm on
+where
+.Ar xx
+is the bus ID and
+.Ar yy
+is the target ID.
+If the bus ID is ommitted,
+the volume is assumed to be on bus 0.
+Second,
+on the volume may be specified by the corresponding
+.Em daX
+device,
+such as
+.Em da0 .
+.Pp
+The
+.Xr mpt 4
+controller divides drives up into two categories.
+Configured drives belong to a RAID volume either as a member drive or as a hot
+spare.
+Each configured drive is assigned a unique device ID such as 0 or 1 that is
+show in
+.Cm show config ,
+and in the first column of
+.Cm show drives .
+Any drive not associated with a RAID volume as either a member or a hot spare
+is a standalone drive.
+Standalone drives are visible to the operating system as SCSI disk devices.
+As a result, drives may be specified in three forms.
+First,
+a configured drive may be identified by its device ID.
+Second,
+any drive may be identified by its location as
+.Sm off
+.Ar xx Ns \&:
+.Ar yy
+.Sm on
+where
+.Ar xx
+is the bus ID and
+.Ar yy
+is the target ID for each drive as displayed in
+.Cm show drives .
+Note that unlike volumes,
+a drive location always requires the bus ID to avoid confusion with device IDs.
+Third,
+a standalone drive that is not part of a volume may be identified by its
+corresponding
+.Em daX
+device as displayed in
+.Cm show drives .
+.Pp
+The
+.Nm
+utility supports several different groups of commands.
+The first group of commands provide information about the controller,
+the volumes it manages, and the drives it controls.
+The second group of commands are used to manage the physical drives
+attached to the controller.
+The third group of commands are used to manage the logical volumes
+managed by the controller.
+The fourth group of commands are used to manage the drive configuration for
+the controller.
+.Pp
+The informational commands include:
+.Bl -tag -width indent
+.It Cm version
+Displays the version of
+.Nm .
+.It Cm show adapter
+Displays information about the RAID controller such as the model number.
+.It Cm show config
+Displays the volume and drive configuration for the controller.
+Each volume is listed along with the physical drives that the volume spans.
+If any hot spare drives are configured, then they are listed as well.
+.It Cm show drives
+Lists all of the physical drives attached to the controller.
+.It Cm show events
+Display all the entries from the controller's event log.
+Due to lack of documentation this command isn't very useful currently and
+just dumps each log entry in hex.
+.It Cm show volumes
+Lists all of the logical volumes managed by the controller.
+.El
+.Pp
+The physical drive management commands include:
+.Bl -tag -width indent
+.It Cm fail Ar drive
+Mark
+.Ar drive
+as
+.Dq failed requested .
+Note that this state is different from the
+.Dq failed
+state that is used when the firmware fails a drive.
+.Ar Drive
+must be a configured drive.
+.It Cm online Ar drive
+Mark
+.Ar drive
+as an online drive.
+.Ar Drive
+must be part a configured drive in either the
+.Dq offline
+or
+.Dq failed requested
+states.
+.It Cm offline Ar drive
+Mark
+.Ar drive
+as offline.
+.Ar Drive
+must be a configured, online drive.
+.El
+.Pp
+The logical volume management commands include:
+.Bl -tag -width indent
+.It Cm name Ar volume Ar name
+Sets the name of
+.Ar volume
+to
+.Ar name .
+.It Cm volume cache Ar volume Ar enable|disable
+Enables or disables the drive write cache for the member drives of
+.Ar volume .
+.It Cm volume status Ar volume
+Display more detailed status about a single volume including the current
+progress of a rebuild operation if one is being performed.
+.El
+.Pp
+The configuration commands include:
+.Bl -tag -width indent
+.It Cm clear
+Delete the entire configuration including all volumes and spares.
+All drives will become standalone drives.
+.It Xo Cm create Ar type
+.Op Fl q
+.Op Fl v
+.Op Fl s Ar stripe_size
+.Ar drive Ns Op \&, Ns Ar drive Ns Op ",..."
+.Xc
+Create a new volume.
+The
+.Ar type
+specifies the type of volume to create.
+Currently supported types include:
+.Bl -tag -width indent
+.It Cm raid0
+Creates one RAID0 volume spanning the drives listed in the single drive list.
+.It Cm raid1
+Creates one RAID1 volume spanning the drives listed in the single drive list.
+.It Cm raid1e
+Creates one RAID1E volume spanning the drives listed in the single drive list.
+.El
+.Pp
+.Sy Note:
+Not all volume types are supported by all controllers.
+.Pp
+If the
+.Fl q
+flag is specified after
+.Ar type ,
+then a
+.Dq quick
+initialization of the volume will be done.
+This is useful when the drives do not contain any existing data that need
+to be preserved.
+.Pp
+If the
+.Fl v
+flag is specified after
+.Ar type ,
+then more verbose output will be enabled.
+Currently this just provides notification as drives are added to volumes
+when building the configuration.
+.Pp
+The
+.Fl s
+.Ar stripe_size
+parameter allows the stripe size of the array to be set.
+By default a stripe size of 64K is used.
+The list of valid values for a given
+.Ar type
+are listed in the output of
+.Cm show adapter .
+.It Cm delete Ar volume
+Delete the volume
+.Ar volume .
+Member drives will become standalone drives.
+.It Cm add Ar drive Op Ar volume
+Mark
+.Ar drive
+as a hot spare.
+.Ar Drive
+must not be a member of a volume.
+If
+.Ar volume
+is specified,
+then the hot spare will be dedicated to that volume.
+Otherwise,
+.Ar drive
+will be used as a global hot spare backing all volumes for this controller.
+Note that
+.Ar drive
+must be as large as the smallest drive in all of the volumes it is going to
+back.
+.It Cm remove Ar drive
+Remove the hot spare
+.Ar drive
+from service.
+It will become a standalone drive.
+.El
+.Sh EXAMPLES
+Mark the drive at bus 0 target 4 as offline:
+.Pp
+.Dl Nm Cm offline 0:4
+.Pp
+Create a RAID1 array from the two standalone drives
+.Va da1
+and
+.Va da2 :
+.Pp
+.Dl Nm Cm create raid1 da1,da2
+.Pp
+Mark standalone drive
+.Va da3
+as a global hot spare:
+.Pp
+.Dl Nm Cm add da3
+.Sh SEE ALSO
+.Xr mpt 4
+.Sh BUGS
+Deleting volumes usually provokes a kernel crash in OS versions older than
+.Dv 6.3-YAHOO-20080722 .
+.Pp
+The handling of spare drives appears to be unreliable.
+The
+.Xr mpt 4
+firmware manages spares via spare drive
+.Dq pools .
+There are eight pools numbered 0 through 7.
+Each spare drive can only be assigned to a single pool.
+Each volume can be backed by any combination of zero or more spare pools.
+The
+.Nm
+utility attempts to use the following algorithm for managing spares.
+Global spares are always assigned to pool 0,
+and all volumes are always backed by pool 0.
+For dedicated spares,
+.Nm
+assigns one of the remaining 7 pools to each volume and
+assigns dedicated drives to that pool.
+In practice however, it seems that assigning a drive as a spare does not
+take effect until the box has been rebooted.
+Also, the firmware renumbers the spare pool assignments after a reboot
+which undoes the effects of the algorithm above.
+Simple cases such as assigning global spares seem to work ok
+.Pq albeit requiring a reboot to take effect
+but more
+.Dq exotic
+configurations may not work reliably.
+.Pp
+Drive configuration commands result in an excessive flood of messages on the
+console.
diff --git a/usr.sbin/mptutil/mptutil.c b/usr.sbin/mptutil/mptutil.c
new file mode 100644
index 000000000000..e7b58060ef1a
--- /dev/null
+++ b/usr.sbin/mptutil/mptutil.c
@@ -0,0 +1,123 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "mptutil.h"
+
+SET_DECLARE(MPT_DATASET(top), struct mptutil_command);
+
+int mpt_unit;
+
+static void
+usage(void)
+{
+
+	fprintf(stderr, "usage: mptutil [-u unit] <command> ...\n\n");
+	fprintf(stderr, "Commands include:\n");
+	fprintf(stderr, "    version\n");
+	fprintf(stderr, "    show adapter              - display controller information\n");
+	fprintf(stderr, "    show config               - display RAID configuration\n");
+	fprintf(stderr, "    show drives               - list physical drives\n");
+	fprintf(stderr, "    show events               - display event log\n");
+	fprintf(stderr, "    show volumes              - list logical volumes\n");
+	fprintf(stderr, "    fail <drive>              - fail a physical drive\n");
+	fprintf(stderr, "    online <drive>            - bring an offline physical drive online\n");
+	fprintf(stderr, "    offline <drive>           - mark a physical drive offline\n");
+	fprintf(stderr, "    name <volume> <name>\n");
+	fprintf(stderr, "    volume status <volume>    - display volume status\n");
+	fprintf(stderr, "    volume cache <volume> <enable|disable>\n");
+	fprintf(stderr, "                              - Enable or disable the volume drive caches\n");
+	fprintf(stderr, "    clear                     - clear volume configuration\n");
+	fprintf(stderr, "    create <type> [-vq] [-s stripe] <drive>[,<drive>[,...]]\n");
+	fprintf(stderr, "    delete <volume>\n");
+	fprintf(stderr, "    add <drive> [volume]      - add a hot spare\n");
+	fprintf(stderr, "    remove <drive>            - remove a hot spare\n");
+#ifdef DEBUG
+	fprintf(stderr, "    pd create <drive>         - create RAID physdisk\n");
+	fprintf(stderr, "    pd delete <drive>         - delete RAID physdisk\n");
+	fprintf(stderr, "    debug                     - debug 'show config'\n");
+#endif
+	exit(1);
+}
+
+static int
+version(int ac, char **av)
+{
+
+	printf("mptutil version 1.0.3");
+#ifdef DEBUG
+	printf(" (DEBUG)");
+#endif
+	printf("\n");
+	return (0);
+}
+MPT_COMMAND(top, version, version);
+
+int
+main(int ac, char **av)
+{
+	struct mptutil_command **cmd;
+	int ch;
+
+	while ((ch = getopt(ac, av, "u:")) != -1) {
+		switch (ch) {
+		case 'u':
+			mpt_unit = atoi(optarg);
+			break;
+		case '?':
+			usage();
+		}
+	}
+
+	av += optind;
+	ac -= optind;
+
+	/* getopt() eats av[0], so we can't use mpt_table_handler() directly. */
+	if (ac == 0)
+		usage();
+
+	SET_FOREACH(cmd, MPT_DATASET(top)) {
+		if (strcmp((*cmd)->name, av[0]) == 0) {
+			(*cmd)->handler(ac, av);
+			return (0);
+		}
+	}
+	warnx("Unknown command %s.", av[0]);
+	return (0);
+}
diff --git a/usr.sbin/mptutil/mptutil.h b/usr.sbin/mptutil/mptutil.h
new file mode 100644
index 000000000000..395123593343
--- /dev/null
+++ b/usr.sbin/mptutil/mptutil.h
@@ -0,0 +1,178 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef __MPTUTIL_H__
+#define	__MPTUTIL_H__
+
+#include <sys/cdefs.h>
+#include <sys/linker_set.h>
+
+#include <dev/mpt/mpilib/mpi_type.h>
+#include <dev/mpt/mpilib/mpi.h>
+#include <dev/mpt/mpilib/mpi_cnfg.h>
+#include <dev/mpt/mpilib/mpi_raid.h>
+
+#define	IOC_STATUS_SUCCESS(status)					\
+	(((status) & MPI_IOCSTATUS_MASK) == MPI_IOCSTATUS_SUCCESS)
+
+struct mpt_query_disk {
+	char	devname[SPECNAMELEN + 1];
+};
+
+struct mpt_standalone_disk {
+	uint64_t maxlba;
+	char	inqstring[64];
+	char	devname[SPECNAMELEN + 1];
+	u_int	bus;
+	u_int	target;
+};
+
+struct mpt_drive_list {
+	int	ndrives;
+	CONFIG_PAGE_RAID_PHYS_DISK_0 *drives[0];
+};
+
+struct mptutil_command {
+	const char *name;
+	int (*handler)(int ac, char **av);
+};
+
+#define	MPT_DATASET(name)	mptutil_ ## name ## _table
+
+#define	MPT_COMMAND(set, name, function)				\
+	static struct mptutil_command function ## _mptutil_command =	\
+	{ #name, function };						\
+	DATA_SET(MPT_DATASET(set), function ## _mptutil_command)
+
+#define	MPT_TABLE(set, name)						\
+	SET_DECLARE(MPT_DATASET(name), struct mptutil_command);		\
+									\
+	static int							\
+	mptutil_ ## name ## _table_handler(int ac, char **av)		\
+	{								\
+		return (mpt_table_handler(SET_BEGIN(MPT_DATASET(name)), \
+		    SET_LIMIT(MPT_DATASET(name)), ac, av));		\
+	}								\
+	MPT_COMMAND(set, name, mptutil_ ## name ## _table_handler)
+
+extern int mpt_unit;
+
+#ifdef DEBUG
+void	hexdump(const void *ptr, int length, const char *hdr, int flags);
+#define	HD_COLUMN_MASK	0xff
+#define	HD_DELIM_MASK	0xff00
+#define	HD_OMIT_COUNT	(1 << 16)
+#define	HD_OMIT_HEX	(1 << 17)
+#define	HD_OMIT_CHARS	(1 << 18)
+#endif
+
+int	mpt_table_handler(struct mptutil_command **start,
+    struct mptutil_command **end, int ac, char **av);
+int	mpt_read_config_page_header(int fd, U8 PageType, U8 PageNumber,
+    U32 PageAddress, CONFIG_PAGE_HEADER *header, U16 *IOCStatus);
+void	*mpt_read_config_page(int fd, U8 PageType, U8 PageNumber,
+    U32 PageAddress, U16 *IOCStatus);
+void	*mpt_read_extended_config_page(int fd, U8 ExtPageType, U8 PageVersion,
+    U8 PageNumber, U32 PageAddress, U16 *IOCStatus);
+int	mpt_write_config_page(int fd, void *buf, U16 *IOCStatus);
+const char *mpt_ioc_status(U16 IOCStatus);
+int	mpt_raid_action(int fd, U8 Action, U8 VolumeBus, U8 VolumeID,
+    U8 PhysDiskNum, U32 ActionDataWord, void *buf, int len,
+    RAID_VOL0_STATUS *VolumeStatus, U32 *ActionData, int datalen,
+    U16 *IOCStatus, U16 *ActionStatus, int write);
+const char *mpt_raid_status(U16 ActionStatus);
+int	mpt_open(int unit);
+const char *mpt_raid_level(U8 VolumeType);
+const char *mpt_volstate(U8 State);
+const char *mpt_pdstate(CONFIG_PAGE_RAID_PHYS_DISK_0 *info);
+const char *mpt_pd_inq_string(CONFIG_PAGE_RAID_PHYS_DISK_0 *pd_info);
+struct mpt_drive_list *mpt_pd_list(int fd);
+void	mpt_free_pd_list(struct mpt_drive_list *list);
+int	mpt_query_disk(U8 VolumeBus, U8 VolumeID, struct mpt_query_disk *qd);
+const char *mpt_volume_name(U8 VolumeBus, U8 VolumeID);
+int	mpt_fetch_disks(int fd, int *ndisks,
+    struct mpt_standalone_disk **disksp);
+int	mpt_lock_volume(U8 VolumeBus, U8 VolumeID);
+int	mpt_lookup_drive(struct mpt_drive_list *list, const char *drive,
+    U8 *PhysDiskNum);
+int	mpt_lookup_volume(int fd, const char *name, U8 *VolumeBus,
+    U8 *VolumeID);
+int	mpt_rescan_bus(int bus, int id);
+
+static __inline void *
+mpt_read_man_page(int fd, U8 PageNumber, U16 *IOCStatus)
+{
+
+	return (mpt_read_config_page(fd, MPI_CONFIG_PAGETYPE_MANUFACTURING,
+	    PageNumber, 0, IOCStatus));
+}
+
+static __inline void *
+mpt_read_ioc_page(int fd, U8 PageNumber, U16 *IOCStatus)
+{
+
+	return (mpt_read_config_page(fd, MPI_CONFIG_PAGETYPE_IOC, PageNumber,
+	    0, IOCStatus));
+}
+
+static __inline U32
+mpt_vol_pageaddr(U8 VolumeBus, U8 VolumeID)
+{
+
+	return (VolumeBus << 8 | VolumeID);
+}
+
+static __inline CONFIG_PAGE_RAID_VOL_0 *
+mpt_vol_info(int fd, U8 VolumeBus, U8 VolumeID, U16 *IOCStatus)
+{
+
+	return (mpt_read_config_page(fd, MPI_CONFIG_PAGETYPE_RAID_VOLUME, 0,
+	    mpt_vol_pageaddr(VolumeBus, VolumeID), IOCStatus));
+}
+
+static __inline CONFIG_PAGE_RAID_VOL_1 *
+mpt_vol_names(int fd, U8 VolumeBus, U8 VolumeID, U16 *IOCStatus)
+{
+
+	return (mpt_read_config_page(fd, MPI_CONFIG_PAGETYPE_RAID_VOLUME, 1,
+	    mpt_vol_pageaddr(VolumeBus, VolumeID), IOCStatus));
+}
+
+static __inline CONFIG_PAGE_RAID_PHYS_DISK_0 *
+mpt_pd_info(int fd, U8 PhysDiskNum, U16 *IOCStatus)
+{
+
+	return (mpt_read_config_page(fd, MPI_CONFIG_PAGETYPE_RAID_PHYSDISK, 0,
+	    PhysDiskNum, IOCStatus));
+}
+
+#endif /* !__MPTUTIL_H__ */