xref: /freebsd/usr.sbin/mptutil/mpt_config.c (revision b1f9167f94059fd55c630891d359bcff987bd7eb)
1 /*-
2  * Copyright (c) 2008 Yahoo!, Inc.
3  * All rights reserved.
4  * Written by: John Baldwin <jhb@FreeBSD.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. Neither the name of the author nor the names of any co-contributors
15  *    may be used to endorse or promote products derived from this software
16  *    without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __RCSID("$FreeBSD$");
33 
34 #include <sys/param.h>
35 #include <sys/errno.h>
36 #include <err.h>
37 #include <fcntl.h>
38 #include <libutil.h>
39 #include <paths.h>
40 #ifdef DEBUG
41 #include <stdint.h>
42 #endif
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <string.h>
46 #include <unistd.h>
47 #include "mptutil.h"
48 
49 #ifdef DEBUG
50 static void	dump_config(CONFIG_PAGE_RAID_VOL_0 *vol);
51 #endif
52 
53 static long
54 dehumanize(const char *value)
55 {
56         char    *vtp;
57         long    iv;
58 
59         if (value == NULL)
60                 return (0);
61         iv = strtoq(value, &vtp, 0);
62         if (vtp == value || (vtp[0] != '\0' && vtp[1] != '\0')) {
63                 return (0);
64         }
65         switch (vtp[0]) {
66         case 't': case 'T':
67                 iv *= 1024;
68         case 'g': case 'G':
69                 iv *= 1024;
70         case 'm': case 'M':
71                 iv *= 1024;
72         case 'k': case 'K':
73                 iv *= 1024;
74         case '\0':
75                 break;
76         default:
77                 return (0);
78         }
79         return (iv);
80 }
81 
82 /*
83  * Lock the volume by opening its /dev device read/write.  This will
84  * only work if nothing else has it opened (including mounts).  We
85  * leak the fd on purpose since this application is not long-running.
86  */
87 int
88 mpt_lock_volume(U8 VolumeBus, U8 VolumeID)
89 {
90 	char path[MAXPATHLEN];
91 	struct mpt_query_disk qd;
92 	int error, vfd;
93 
94 	error = mpt_query_disk(VolumeBus, VolumeID, &qd);
95 	if (error == ENOENT)
96 		/*
97 		 * This means there isn't a CAM device associated with
98 		 * the volume, and thus it is already implicitly
99 		 * locked, so just return.
100 		 */
101 		return (0);
102 	if (error) {
103 		warnc(error, "Unable to lookup volume device name");
104 		return (error);
105 	}
106 	snprintf(path, sizeof(path), "%s%s", _PATH_DEV, qd.devname);
107 	vfd = open(path, O_RDWR);
108 	if (vfd < 0) {
109 		error = errno;
110 		warn("Unable to lock volume %s", qd.devname);
111 		return (error);
112 	}
113 	return (0);
114 }
115 
116 static int
117 mpt_lock_physdisk(struct mpt_standalone_disk *disk)
118 {
119 	char path[MAXPATHLEN];
120 	int dfd, error;
121 
122 	snprintf(path, sizeof(path), "%s%s", _PATH_DEV, disk->devname);
123 	dfd = open(path, O_RDWR);
124 	if (dfd < 0) {
125 		error = errno;
126 		warn("Unable to lock disk %s", disk->devname);
127 		return (error);
128 	}
129 	return (0);
130 }
131 
132 static int
133 mpt_lookup_standalone_disk(const char *name, struct mpt_standalone_disk *disks,
134     int ndisks, int *index)
135 {
136 	char *cp;
137 	long bus, id;
138 	int i;
139 
140 	/* Check for a raw <bus>:<id> string. */
141 	bus = strtol(name, &cp, 0);
142 	if (*cp == ':') {
143 		id = strtol(cp + 1, &cp, 0);
144 		if (*cp == '\0') {
145 			if (bus < 0 || bus > 0xff || id < 0 || id > 0xff) {
146 				return (EINVAL);
147 			}
148 			for (i = 0; i < ndisks; i++) {
149 				if (disks[i].bus == (U8)bus &&
150 				    disks[i].target == (U8)id) {
151 					*index = i;
152 					return (0);
153 				}
154 			}
155 			return (ENOENT);
156 		}
157 	}
158 
159 	if (name[0] == 'd' && name[1] == 'a') {
160 		for (i = 0; i < ndisks; i++) {
161 			if (strcmp(name, disks[i].devname) == 0) {
162 				*index = i;
163 				return (0);
164 			}
165 		}
166 		return (ENOENT);
167 	}
168 
169 	return (EINVAL);
170 }
171 
172 /*
173  * Mark a standalone disk as being a physical disk.
174  */
175 static int
176 mpt_create_physdisk(int fd, struct mpt_standalone_disk *disk, U8 *PhysDiskNum)
177 {
178 	CONFIG_PAGE_HEADER header;
179 	CONFIG_PAGE_RAID_PHYS_DISK_0 *config_page;
180 	int error;
181 	U32 ActionData;
182 
183 	error = mpt_read_config_page_header(fd, MPI_CONFIG_PAGETYPE_RAID_PHYSDISK,
184 	    0, 0, &header, NULL);
185 	if (error)
186 		return (error);
187 	if (header.PageVersion > MPI_RAIDPHYSDISKPAGE0_PAGEVERSION) {
188 		warnx("Unsupported RAID physdisk page 0 version %d",
189 		    header.PageVersion);
190 		return (EOPNOTSUPP);
191 	}
192 	config_page = calloc(1, sizeof(CONFIG_PAGE_RAID_PHYS_DISK_0));
193 	config_page->Header.PageType = MPI_CONFIG_PAGETYPE_RAID_PHYSDISK;
194 	config_page->Header.PageNumber = 0;
195 	config_page->Header.PageLength = sizeof(CONFIG_PAGE_RAID_PHYS_DISK_0) /
196 	    4;
197 	config_page->PhysDiskIOC = 0;	/* XXX */
198 	config_page->PhysDiskBus = disk->bus;
199 	config_page->PhysDiskID = disk->target;
200 
201 	/* XXX: Enclosure info for PhysDiskSettings? */
202 	error = mpt_raid_action(fd, MPI_RAID_ACTION_CREATE_PHYSDISK, 0, 0, 0, 0,
203 	    config_page, sizeof(CONFIG_PAGE_RAID_PHYS_DISK_0), NULL,
204 	    &ActionData, sizeof(ActionData), NULL, NULL, 1);
205 	if (error)
206 		return (error);
207 	*PhysDiskNum = ActionData & 0xff;
208 	return (0);
209 }
210 
211 static int
212 mpt_delete_physdisk(int fd, U8 PhysDiskNum)
213 {
214 
215 	return (mpt_raid_action(fd, MPI_RAID_ACTION_DELETE_PHYSDISK, 0, 0,
216 	    PhysDiskNum, 0, NULL, 0, NULL, NULL, 0, NULL, NULL, 0));
217 }
218 
219 /*
220  * MPT's firmware does not have a clear command.  Instead, we
221  * implement it by deleting each array and disk by hand.
222  */
223 static int
224 clear_config(int ac, char **av)
225 {
226 	CONFIG_PAGE_IOC_2 *ioc2;
227 	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
228 	CONFIG_PAGE_IOC_3 *ioc3;
229 	IOC_3_PHYS_DISK *disk;
230 	CONFIG_PAGE_IOC_5 *ioc5;
231 	IOC_5_HOT_SPARE *spare;
232 	int ch, error, fd, i;
233 
234 	fd = mpt_open(mpt_unit);
235 	if (fd < 0) {
236 		error = errno;
237 		warn("mpt_open");
238 		return (error);
239 	}
240 
241 	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
242 	if (ioc2 == NULL) {
243 		error = errno;
244 		warn("Failed to fetch volume list");
245 		return (error);
246 	}
247 
248 	/* Lock all the volumes first. */
249 	vol = ioc2->RaidVolume;
250 	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
251 		if (mpt_lock_volume(vol->VolumeBus, vol->VolumeID) < 0) {
252 			warnx("Volume %s is busy and cannot be deleted",
253 			    mpt_volume_name(vol->VolumeBus, vol->VolumeID));
254 			return (EBUSY);
255 		}
256 	}
257 
258 	printf(
259 	    "Are you sure you wish to clear the configuration on mpt%u? [y/N] ",
260 	    mpt_unit);
261 	ch = getchar();
262 	if (ch != 'y' && ch != 'Y') {
263 		printf("\nAborting\n");
264 		return (0);
265 	}
266 
267 	/* Delete all the volumes. */
268 	vol = ioc2->RaidVolume;
269 	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
270 		error = mpt_raid_action(fd, MPI_RAID_ACTION_DELETE_VOLUME,
271 		    vol->VolumeBus, vol->VolumeID, 0,
272 		    MPI_RAID_ACTION_ADATA_DEL_PHYS_DISKS |
273 		    MPI_RAID_ACTION_ADATA_ZERO_LBA0, NULL, 0, NULL, NULL, 0,
274 		    NULL, NULL, 0);
275 		if (error)
276 			warnc(error, "Failed to delete volume %s",
277 			    mpt_volume_name(vol->VolumeBus, vol->VolumeID));
278 	}
279 	free(ioc2);
280 
281 	/* Delete all the spares. */
282 	ioc5 = mpt_read_ioc_page(fd, 5, NULL);
283 	if (ioc5 == NULL)
284 		warn("Failed to fetch spare list");
285 	else {
286 		spare = ioc5->HotSpare;
287 		for (i = 0; i < ioc5->NumHotSpares; spare++, i++)
288 			if (mpt_delete_physdisk(fd, spare->PhysDiskNum) < 0)
289 				warn("Failed to delete physical disk %d",
290 				    spare->PhysDiskNum);
291 		free(ioc5);
292 	}
293 
294 	/* Delete any RAID physdisks that may be left. */
295 	ioc3 = mpt_read_ioc_page(fd, 3, NULL);
296 	if (ioc3 == NULL)
297 		warn("Failed to fetch drive list");
298 	else {
299 		disk = ioc3->PhysDisk;
300 		for (i = 0; i < ioc3->NumPhysDisks; disk++, i++)
301 			if (mpt_delete_physdisk(fd, disk->PhysDiskNum) < 0)
302 				warn("Failed to delete physical disk %d",
303 				    disk->PhysDiskNum);
304 		free(ioc3);
305 	}
306 
307 	printf("mpt%d: Configuration cleared\n", mpt_unit);
308 	mpt_rescan_bus(-1, -1);
309 	close(fd);
310 
311 	return (0);
312 }
313 MPT_COMMAND(top, clear, clear_config);
314 
315 #define	RT_RAID0	0
316 #define	RT_RAID1	1
317 #define	RT_RAID1E	2
318 
319 static struct raid_type_entry {
320 	const char *name;
321 	int	raid_type;
322 } raid_type_table[] = {
323 	{ "raid0",	RT_RAID0 },
324 	{ "raid-0",	RT_RAID0 },
325 	{ "raid1",	RT_RAID1 },
326 	{ "raid-1",	RT_RAID1 },
327 	{ "mirror",	RT_RAID1 },
328 	{ "raid1e",	RT_RAID1E },
329 	{ "raid-1e",	RT_RAID1E },
330 	{ NULL,		0 },
331 };
332 
333 struct config_id_state {
334 	struct mpt_standalone_disk *sdisks;
335 	struct mpt_drive_list *list;
336 	CONFIG_PAGE_IOC_2 *ioc2;
337 	U8	target_id;
338 	int	nsdisks;
339 };
340 
341 struct drive_info {
342 	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
343 	struct mpt_standalone_disk *sdisk;
344 };
345 
346 struct volume_info {
347 	int	drive_count;
348 	struct drive_info *drives;
349 };
350 
351 /* Parse a comma-separated list of drives for a volume. */
352 static int
353 parse_volume(int fd, int raid_type, struct config_id_state *state,
354     char *volume_str, struct volume_info *info)
355 {
356 	struct drive_info *dinfo;
357 	U8 PhysDiskNum;
358 	char *cp;
359 	int count, error, i;
360 
361 	cp = volume_str;
362 	for (count = 0; cp != NULL; count++) {
363 		cp = strchr(cp, ',');
364 		if (cp != NULL) {
365 			cp++;
366 			if (*cp == ',') {
367 				warnx("Invalid drive list '%s'", volume_str);
368 				return (EINVAL);
369 			}
370 		}
371 	}
372 
373 	/* Validate the number of drives for this volume. */
374 	switch (raid_type) {
375 	case RT_RAID0:
376 		if (count < 2) {
377 			warnx("RAID0 requires at least 2 drives in each "
378 			    "array");
379 			return (EINVAL);
380 		}
381 		break;
382 	case RT_RAID1:
383 		if (count != 2) {
384 			warnx("RAID1 requires exactly 2 drives in each "
385 			    "array");
386 			return (EINVAL);
387 		}
388 		break;
389 	case RT_RAID1E:
390 		if (count < 3) {
391 			warnx("RAID1E requires at least 3 drives in each "
392 			    "array");
393 			return (EINVAL);
394 		}
395 		break;
396 	}
397 
398 	/* Validate each drive. */
399 	info->drives = calloc(count, sizeof(struct drive_info));
400 	info->drive_count = count;
401 	for (dinfo = info->drives; (cp = strsep(&volume_str, ",")) != NULL;
402 	     dinfo++) {
403 		/* If this drive is already a RAID phys just fetch the info. */
404 		error = mpt_lookup_drive(state->list, cp, &PhysDiskNum);
405 		if (error == 0) {
406 			dinfo->info = mpt_pd_info(fd, PhysDiskNum, NULL);
407 			if (dinfo->info == NULL)
408 				return (errno);
409 			continue;
410 		}
411 
412 		/* See if it is a standalone disk. */
413 		if (mpt_lookup_standalone_disk(cp, state->sdisks,
414 		    state->nsdisks, &i) < 0) {
415 			error = errno;
416 			warn("Unable to lookup drive %s", cp);
417 			return (error);
418 		}
419 		dinfo->sdisk = &state->sdisks[i];
420 
421 		/* Lock the disk, we will create phys disk pages later. */
422 		if (mpt_lock_physdisk(dinfo->sdisk) < 0)
423 			return (errno);
424 	}
425 
426 	return (0);
427 }
428 
429 /*
430  * Add RAID physdisk pages for any standalone disks that a volume is
431  * going to use.
432  */
433 static int
434 add_drives(int fd, struct volume_info *info, int verbose)
435 {
436 	struct drive_info *dinfo;
437 	U8 PhysDiskNum;
438 	int error, i;
439 
440 	for (i = 0, dinfo = info->drives; i < info->drive_count;
441 	     i++, dinfo++) {
442 		if (dinfo->info == NULL) {
443 			if (mpt_create_physdisk(fd, dinfo->sdisk,
444 			    &PhysDiskNum) < 0) {
445 				error = errno;
446 				warn(
447 			    "Failed to create physical disk page for %s",
448 				    dinfo->sdisk->devname);
449 				return (error);
450 			}
451 			if (verbose)
452 				printf("Added drive %s with PhysDiskNum %u\n",
453 				    dinfo->sdisk->devname, PhysDiskNum);
454 
455 			dinfo->info = mpt_pd_info(fd, PhysDiskNum, NULL);
456 			if (dinfo->info == NULL)
457 				return (errno);
458 		}
459 	}
460 	return (0);
461 }
462 
463 /*
464  * Find the next free target ID assuming that 'target_id' is the last
465  * one used.  'target_id' should be 0xff for the initial test.
466  */
467 static U8
468 find_next_volume(struct config_id_state *state)
469 {
470 	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
471 	int i;
472 
473 restart:
474 	/* Assume the current one is used. */
475 	state->target_id++;
476 
477 	/* Search drives first. */
478 	for (i = 0; i < state->nsdisks; i++)
479 		if (state->sdisks[i].target == state->target_id)
480 			goto restart;
481 	for (i = 0; i < state->list->ndrives; i++)
482 		if (state->list->drives[i]->PhysDiskID == state->target_id)
483 			goto restart;
484 
485 	/* Search volumes second. */
486 	vol = state->ioc2->RaidVolume;
487 	for (i = 0; i < state->ioc2->NumActiveVolumes; vol++, i++)
488 		if (vol->VolumeID == state->target_id)
489 			goto restart;
490 
491 	return (state->target_id);
492 }
493 
494 /* Create a volume and populate it with drives. */
495 static CONFIG_PAGE_RAID_VOL_0 *
496 build_volume(int fd, struct volume_info *info, int raid_type, long stripe_size,
497     struct config_id_state *state, int verbose)
498 {
499 	CONFIG_PAGE_HEADER header;
500 	CONFIG_PAGE_RAID_VOL_0 *vol;
501 	RAID_VOL0_PHYS_DISK *rdisk;
502 	struct drive_info *dinfo;
503         U32 MinLBA;
504 	uint64_t MaxLBA;
505 	size_t page_size;
506 	int error, i;
507 
508 	error = mpt_read_config_page_header(fd, MPI_CONFIG_PAGETYPE_RAID_VOLUME,
509 	    0, 0, &header, NULL);
510 	if (error) {
511 		errno = error;
512 		return (NULL);
513 	}
514 	if (header.PageVersion > MPI_RAIDVOLPAGE0_PAGEVERSION) {
515 		warnx("Unsupported RAID volume page 0 version %d",
516 		    header.PageVersion);
517 		errno = EOPNOTSUPP;
518 		return (NULL);
519 	}
520 	page_size = sizeof(CONFIG_PAGE_RAID_VOL_0) +
521 	    sizeof(RAID_VOL0_PHYS_DISK) * (info->drive_count - 1);
522 	vol = calloc(1, page_size);
523 	if (vol == NULL)
524 		return (NULL);
525 
526 	/* Header */
527 	vol->Header.PageType = MPI_CONFIG_PAGETYPE_RAID_VOLUME;
528 	vol->Header.PageNumber = 0;
529 	vol->Header.PageLength = page_size / 4;
530 
531 	/* Properties */
532 	vol->VolumeID = find_next_volume(state);
533 	vol->VolumeBus = 0;
534 	vol->VolumeIOC = 0;	/* XXX */
535 	vol->VolumeStatus.Flags = MPI_RAIDVOL0_STATUS_FLAG_ENABLED;
536 	vol->VolumeStatus.State = MPI_RAIDVOL0_STATUS_STATE_OPTIMAL;
537 	vol->VolumeSettings.Settings = MPI_RAIDVOL0_SETTING_USE_DEFAULTS;
538 	vol->VolumeSettings.HotSparePool = MPI_RAID_HOT_SPARE_POOL_0;
539 	vol->NumPhysDisks = info->drive_count;
540 
541 	/* Find the smallest drive. */
542 	MinLBA = info->drives[0].info->MaxLBA;
543 	for (i = 1; i < info->drive_count; i++)
544 		if (info->drives[i].info->MaxLBA < MinLBA)
545 			MinLBA = info->drives[i].info->MaxLBA;
546 
547 	/*
548 	 * Now chop off 512MB at the end to leave room for the
549 	 * metadata.  The controller might only use 64MB, but we just
550 	 * chop off the max to be simple.
551 	 */
552 	MinLBA -= (512 * 1024 * 1024) / 512;
553 
554 	switch (raid_type) {
555 	case RT_RAID0:
556 		vol->VolumeType = MPI_RAID_VOL_TYPE_IS;
557 		vol->StripeSize = stripe_size / 512;
558 		MaxLBA = MinLBA * info->drive_count;
559 		break;
560 	case RT_RAID1:
561 		vol->VolumeType = MPI_RAID_VOL_TYPE_IM;
562 		MaxLBA = MinLBA * (info->drive_count / 2);
563 		break;
564 	case RT_RAID1E:
565 		vol->VolumeType = MPI_RAID_VOL_TYPE_IME;
566 		vol->StripeSize = stripe_size / 512;
567 		MaxLBA = MinLBA * info->drive_count / 2;
568 		break;
569 	default:
570 		/* Pacify gcc. */
571 		abort();
572 	}
573 
574 	/*
575 	 * If the controller doesn't support 64-bit addressing and the
576 	 * new volume is larger than 2^32 blocks, warn the user and
577 	 * truncate the volume.
578 	 */
579 	if (MaxLBA >> 32 != 0 &&
580 	    !(state->ioc2->CapabilitiesFlags &
581 	    MPI_IOCPAGE2_CAP_FLAGS_RAID_64_BIT_ADDRESSING)) {
582 		warnx(
583 	    "Controller does not support volumes > 2TB, truncating volume.");
584 		MaxLBA = 0xffffffff;
585 	}
586 	vol->MaxLBA = MaxLBA;
587 	vol->MaxLBAHigh = MaxLBA >> 32;
588 
589 	/* Populate drives. */
590 	for (i = 0, dinfo = info->drives, rdisk = vol->PhysDisk;
591 	     i < info->drive_count; i++, dinfo++, rdisk++) {
592 		if (verbose)
593 			printf("Adding drive %u (%u:%u) to volume %u:%u\n",
594 			    dinfo->info->PhysDiskNum, dinfo->info->PhysDiskBus,
595 			    dinfo->info->PhysDiskID, vol->VolumeBus,
596 			    vol->VolumeID);
597 		if (raid_type == RT_RAID1) {
598 			if (i == 0)
599 				rdisk->PhysDiskMap =
600 				    MPI_RAIDVOL0_PHYSDISK_PRIMARY;
601 			else
602 				rdisk->PhysDiskMap =
603 				    MPI_RAIDVOL0_PHYSDISK_SECONDARY;
604 		} else
605 			rdisk->PhysDiskMap = i;
606 		rdisk->PhysDiskNum = dinfo->info->PhysDiskNum;
607 	}
608 
609 	return (vol);
610 }
611 
612 static int
613 create_volume(int ac, char **av)
614 {
615 	CONFIG_PAGE_RAID_VOL_0 *vol;
616 	struct config_id_state state;
617 	struct volume_info *info;
618 	long stripe_size;
619 	int ch, error, fd, i, quick, raid_type, verbose;
620 #ifdef DEBUG
621 	int dump;
622 #endif
623 
624 	if (ac < 2) {
625 		warnx("create: volume type required");
626 		return (EINVAL);
627 	}
628 
629 	fd = mpt_open(mpt_unit);
630 	if (fd < 0) {
631 		error = errno;
632 		warn("mpt_open");
633 		return (error);
634 	}
635 
636 	/* Lookup the RAID type first. */
637 	raid_type = -1;
638 	for (i = 0; raid_type_table[i].name != NULL; i++)
639 		if (strcasecmp(raid_type_table[i].name, av[1]) == 0) {
640 			raid_type = raid_type_table[i].raid_type;
641 			break;
642 		}
643 
644 	if (raid_type == -1) {
645 		warnx("Unknown or unsupported volume type %s", av[1]);
646 		return (EINVAL);
647 	}
648 
649 	/* Parse any options. */
650 	optind = 2;
651 #ifdef DEBUG
652 	dump = 0;
653 #endif
654 	quick = 0;
655 	verbose = 0;
656 	stripe_size = 64 * 1024;
657 
658 	while ((ch = getopt(ac, av, "dqs:v")) != -1) {
659 		switch (ch) {
660 #ifdef DEBUG
661 		case 'd':
662 			dump = 1;
663 			break;
664 #endif
665 		case 'q':
666 			quick = 1;
667 			break;
668 		case 's':
669 			stripe_size = dehumanize(optarg);
670 			if ((stripe_size < 512) || (!powerof2(stripe_size))) {
671 				warnx("Invalid stripe size %s", optarg);
672 				return (EINVAL);
673 			}
674 			break;
675 		case 'v':
676 			verbose = 1;
677 			break;
678 		case '?':
679 		default:
680 			return (EINVAL);
681 		}
682 	}
683 	ac -= optind;
684 	av += optind;
685 
686 	/* Fetch existing config data. */
687 	state.ioc2 = mpt_read_ioc_page(fd, 2, NULL);
688 	if (state.ioc2 == NULL) {
689 		error = errno;
690 		warn("Failed to read volume list");
691 		return (error);
692 	}
693 	state.list = mpt_pd_list(fd);
694 	if (state.list == NULL)
695 		return (errno);
696 	error = mpt_fetch_disks(fd, &state.nsdisks, &state.sdisks);
697 	if (error) {
698 		warn("Failed to fetch standalone disk list");
699 		return (error);
700 	}
701 	state.target_id = 0xff;
702 
703 	/* Parse the drive list. */
704 	if (ac != 1) {
705 		warnx("Exactly one drive list is required");
706 		return (EINVAL);
707 	}
708 	info = calloc(1, sizeof(*info));
709 	if (info == NULL)
710 		return (ENOMEM);
711 	error = parse_volume(fd, raid_type, &state, av[0], info);
712 	if (error)
713 		return (error);
714 
715 	/* Create RAID physdisk pages for standalone disks. */
716 	error = add_drives(fd, info, verbose);
717 	if (error)
718 		return (error);
719 
720 	/* Build the volume. */
721 	vol = build_volume(fd, info, raid_type, stripe_size, &state, verbose);
722 	if (vol == NULL)
723 		return (errno);
724 
725 #ifdef DEBUG
726 	if (dump) {
727 		dump_config(vol);
728 		goto skip;
729 	}
730 #endif
731 
732 	/* Send the new volume to the controller. */
733 	error = mpt_raid_action(fd, MPI_RAID_ACTION_CREATE_VOLUME, vol->VolumeBus,
734 	    vol->VolumeID, 0, quick ? MPI_RAID_ACTION_ADATA_DO_NOT_SYNC : 0,
735 	    vol, vol->Header.PageLength * 4, NULL, NULL, 0, NULL, NULL, 1);
736 	if (error) {
737 		errno = error;
738 		warn("Failed to add volume");
739 		return (error);
740 	}
741 
742 #ifdef DEBUG
743 skip:
744 #endif
745 	mpt_rescan_bus(vol->VolumeBus, vol->VolumeID);
746 
747 	/* Clean up. */
748 	free(vol);
749 	free(info);
750 	free(state.sdisks);
751 	mpt_free_pd_list(state.list);
752 	free(state.ioc2);
753 	close(fd);
754 
755 	return (0);
756 }
757 MPT_COMMAND(top, create, create_volume);
758 
759 static int
760 delete_volume(int ac, char **av)
761 {
762 	U8 VolumeBus, VolumeID;
763 	int error, fd;
764 
765 	if (ac != 2) {
766 		warnx("delete: volume required");
767 		return (EINVAL);
768 	}
769 
770 	fd = mpt_open(mpt_unit);
771 	if (fd < 0) {
772 		error = errno;
773 		warn("mpt_open");
774 		return (error);
775 	}
776 
777 	error = mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID);
778 	if (error) {
779 		warnc(error, "Invalid volume %s", av[1]);
780 		return (error);
781 	}
782 
783 	if (mpt_lock_volume(VolumeBus, VolumeID) < 0)
784 		return (errno);
785 
786 	error = mpt_raid_action(fd, MPI_RAID_ACTION_DELETE_VOLUME, VolumeBus,
787 	    VolumeID, 0, MPI_RAID_ACTION_ADATA_DEL_PHYS_DISKS |
788 	    MPI_RAID_ACTION_ADATA_ZERO_LBA0, NULL, 0, NULL, NULL, 0, NULL,
789 	    NULL, 0);
790 	if (error) {
791 		warnc(error, "Failed to delete volume");
792 		return (error);
793 	}
794 
795 	mpt_rescan_bus(-1, -1);
796 	close(fd);
797 
798 	return (0);
799 }
800 MPT_COMMAND(top, delete, delete_volume);
801 
802 static int
803 find_volume_spare_pool(int fd, const char *name, int *pool)
804 {
805 	CONFIG_PAGE_RAID_VOL_0 *info;
806 	CONFIG_PAGE_IOC_2 *ioc2;
807 	CONFIG_PAGE_IOC_2_RAID_VOL *vol;
808 	U8 VolumeBus, VolumeID;
809 	int error, i, j, new_pool, pool_count[7];
810 
811 	error = mpt_lookup_volume(fd, name, &VolumeBus, &VolumeID);
812 	if (error) {
813 		warnc(error, "Invalid volume %s", name);
814 		return (error);
815 	}
816 
817 	info = mpt_vol_info(fd, VolumeBus, VolumeID, NULL);
818 	if (info == NULL)
819 		return (errno);
820 
821 	/*
822 	 * Check for an existing pool other than pool 0 (used for
823 	 * global spares).
824 	 */
825 	if ((info->VolumeSettings.HotSparePool & ~MPI_RAID_HOT_SPARE_POOL_0) !=
826 	    0) {
827 		*pool = 1 << (ffs(info->VolumeSettings.HotSparePool &
828 		    ~MPI_RAID_HOT_SPARE_POOL_0) - 1);
829 		return (0);
830 	}
831 	free(info);
832 
833 	/*
834 	 * Try to find a free pool.  First, figure out which pools are
835 	 * in use.
836 	 */
837 	ioc2 = mpt_read_ioc_page(fd, 2, NULL);
838 	if (ioc2 == NULL) {
839 		error = errno;
840 		warn("Failed to fetch volume list");
841 		return (error);
842 	}
843 	bzero(pool_count, sizeof(pool_count));
844 	vol = ioc2->RaidVolume;
845 	for (i = 0; i < ioc2->NumActiveVolumes; vol++, i++) {
846 		info = mpt_vol_info(fd, vol->VolumeBus, vol->VolumeID, NULL);
847 		if (info == NULL)
848 			return (errno);
849 		for (j = 0; j < 7; j++)
850 			if (info->VolumeSettings.HotSparePool & (1 << (j + 1)))
851 				pool_count[j]++;
852 		free(info);
853 	}
854 	free(ioc2);
855 
856 	/* Find the pool with the lowest use count. */
857 	new_pool = 0;
858 	for (i = 1; i < 7; i++)
859 		if (pool_count[i] < pool_count[new_pool])
860 			new_pool = i;
861 	new_pool++;
862 
863 	/* Add this pool to the volume. */
864 	info = mpt_vol_info(fd, VolumeBus, VolumeID, NULL);
865 	if (info == NULL)
866 		return (error);
867 	info->VolumeSettings.HotSparePool |= (1 << new_pool);
868 	error = mpt_raid_action(fd, MPI_RAID_ACTION_CHANGE_VOLUME_SETTINGS,
869 	    VolumeBus, VolumeID, 0, *(U32 *)&info->VolumeSettings, NULL, 0,
870 	    NULL, NULL, 0, NULL, NULL, 0);
871 	if (error) {
872 		warnx("Failed to add spare pool %d to %s", new_pool,
873 		    mpt_volume_name(VolumeBus, VolumeID));
874 		return (error);
875 	}
876 	free(info);
877 
878 	*pool = (1 << new_pool);
879 	return (0);
880 }
881 
882 static int
883 add_spare(int ac, char **av)
884 {
885 	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
886 	struct mpt_standalone_disk *sdisks;
887 	struct mpt_drive_list *list;
888 	U8 PhysDiskNum;
889 	int error, fd, i, nsdisks, pool;
890 
891 	if (ac < 2) {
892 		warnx("add spare: drive required");
893 		return (EINVAL);
894 	}
895 	if (ac > 3) {
896 		warnx("add spare: extra arguments");
897 		return (EINVAL);
898 	}
899 
900 	fd = mpt_open(mpt_unit);
901 	if (fd < 0) {
902 		error = errno;
903 		warn("mpt_open");
904 		return (error);
905 	}
906 
907 	if (ac == 3) {
908 		error = find_volume_spare_pool(fd, av[2], &pool);
909 		if (error)
910 			return (error);
911 	} else
912 		pool = MPI_RAID_HOT_SPARE_POOL_0;
913 
914 	list = mpt_pd_list(fd);
915 	if (list == NULL)
916 		return (errno);
917 
918 	error = mpt_lookup_drive(list, av[1], &PhysDiskNum);
919 	if (error) {
920 		error = mpt_fetch_disks(fd, &nsdisks, &sdisks);
921 		if (error != 0) {
922 			warn("Failed to fetch standalone disk list");
923 			return (error);
924 		}
925 
926 		if (mpt_lookup_standalone_disk(av[1], sdisks, nsdisks, &i) <
927 		    0) {
928 			error = errno;
929 			warn("Unable to lookup drive %s", av[1]);
930 			return (error);
931 		}
932 
933 		if (mpt_lock_physdisk(&sdisks[i]) < 0)
934 			return (errno);
935 
936 		if (mpt_create_physdisk(fd, &sdisks[i], &PhysDiskNum) < 0) {
937 			error = errno;
938 			warn("Failed to create physical disk page");
939 			return (error);
940 		}
941 		free(sdisks);
942 	}
943 	mpt_free_pd_list(list);
944 
945 	info = mpt_pd_info(fd, PhysDiskNum, NULL);
946 	if (info == NULL) {
947 		error = errno;
948 		warn("Failed to fetch drive info");
949 		return (error);
950 	}
951 
952 	info->PhysDiskSettings.HotSparePool = pool;
953 	error = mpt_raid_action(fd, MPI_RAID_ACTION_CHANGE_PHYSDISK_SETTINGS, 0,
954 	    0, PhysDiskNum, *(U32 *)&info->PhysDiskSettings, NULL, 0, NULL,
955 	    NULL, 0, NULL, NULL, 0);
956 	if (error) {
957 		warnc(error, "Failed to assign spare");
958 		return (error);
959 	}
960 
961 	free(info);
962 	close(fd);
963 
964 	return (0);
965 }
966 MPT_COMMAND(top, add, add_spare);
967 
968 static int
969 remove_spare(int ac, char **av)
970 {
971 	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
972 	struct mpt_drive_list *list;
973 	U8 PhysDiskNum;
974 	int error, fd;
975 
976 	if (ac != 2) {
977 		warnx("remove spare: drive required");
978 		return (EINVAL);
979 	}
980 
981 	fd = mpt_open(mpt_unit);
982 	if (fd < 0) {
983 		error = errno;
984 		warn("mpt_open");
985 		return (error);
986 	}
987 
988 	list = mpt_pd_list(fd);
989 	if (list == NULL)
990 		return (errno);
991 
992 	error = mpt_lookup_drive(list, av[1], &PhysDiskNum);
993 	if (error) {
994 		warn("Failed to find drive %s", av[1]);
995 		return (error);
996 	}
997 	mpt_free_pd_list(list);
998 
999 
1000 	info = mpt_pd_info(fd, PhysDiskNum, NULL);
1001 	if (info == NULL) {
1002 		error = errno;
1003 		warn("Failed to fetch drive info");
1004 		return (error);
1005 	}
1006 
1007 	if (info->PhysDiskSettings.HotSparePool == 0) {
1008 		warnx("Drive %u is not a hot spare", PhysDiskNum);
1009 		return (EINVAL);
1010 	}
1011 
1012 	if (mpt_delete_physdisk(fd, PhysDiskNum) < 0) {
1013 		error = errno;
1014 		warn("Failed to delete physical disk page");
1015 		return (error);
1016 	}
1017 
1018 	mpt_rescan_bus(info->PhysDiskBus, info->PhysDiskID);
1019 	free(info);
1020 	close(fd);
1021 
1022 	return (0);
1023 }
1024 MPT_COMMAND(top, remove, remove_spare);
1025 
1026 #ifdef DEBUG
1027 MPT_TABLE(top, pd);
1028 
1029 static int
1030 pd_create(int ac, char **av)
1031 {
1032 	struct mpt_standalone_disk *disks;
1033 	int error, fd, i, ndisks;
1034 	U8 PhysDiskNum;
1035 
1036 	if (ac != 2) {
1037 		warnx("pd create: drive required");
1038 		return (EINVAL);
1039 	}
1040 
1041 	fd = mpt_open(mpt_unit);
1042 	if (fd < 0) {
1043 		error = errno;
1044 		warn("mpt_open");
1045 		return (error);
1046 	}
1047 
1048 	error = mpt_fetch_disks(fd, &ndisks, &disks);
1049 	if (error != 0) {
1050 		warn("Failed to fetch standalone disk list");
1051 		return (error);
1052 	}
1053 
1054 	if (mpt_lookup_standalone_disk(av[1], disks, ndisks, &i) < 0) {
1055 		error = errno;
1056 		warn("Unable to lookup drive");
1057 		return (error);
1058 	}
1059 
1060 	if (mpt_lock_physdisk(&disks[i]) < 0)
1061 		return (errno);
1062 
1063 	if (mpt_create_physdisk(fd, &disks[i], &PhysDiskNum) < 0) {
1064 		error = errno;
1065 		warn("Failed to create physical disk page");
1066 		return (error);
1067 	}
1068 	free(disks);
1069 
1070 	printf("Added drive %s with PhysDiskNum %u\n", av[1], PhysDiskNum);
1071 
1072 	close(fd);
1073 
1074 	return (0);
1075 }
1076 MPT_COMMAND(pd, create, pd_create);
1077 
1078 static int
1079 pd_delete(int ac, char **av)
1080 {
1081 	CONFIG_PAGE_RAID_PHYS_DISK_0 *info;
1082 	struct mpt_drive_list *list;
1083 	int error, fd;
1084 	U8 PhysDiskNum;
1085 
1086 	if (ac != 2) {
1087 		warnx("pd delete: drive required");
1088 		return (EINVAL);
1089 	}
1090 
1091 	fd = mpt_open(mpt_unit);
1092 	if (fd < 0) {
1093 		error = errno;
1094 		warn("mpt_open");
1095 		return (error);
1096 	}
1097 
1098 	list = mpt_pd_list(fd);
1099 	if (list == NULL)
1100 		return (errno);
1101 
1102 	if (mpt_lookup_drive(list, av[1], &PhysDiskNum) < 0) {
1103 		error = errno;
1104 		warn("Failed to find drive %s", av[1]);
1105 		return (error);
1106 	}
1107 	mpt_free_pd_list(list);
1108 
1109 	info = mpt_pd_info(fd, PhysDiskNum, NULL);
1110 	if (info == NULL) {
1111 		error = errno;
1112 		warn("Failed to fetch drive info");
1113 		return (error);
1114 	}
1115 
1116 	if (mpt_delete_physdisk(fd, PhysDiskNum) < 0) {
1117 		error = errno;
1118 		warn("Failed to delete physical disk page");
1119 		return (error);
1120 	}
1121 
1122 	mpt_rescan_bus(info->PhysDiskBus, info->PhysDiskID);
1123 	free(info);
1124 	close(fd);
1125 
1126 	return (0);
1127 }
1128 MPT_COMMAND(pd, delete, pd_delete);
1129 
1130 /* Display raw data about a volume config. */
1131 static void
1132 dump_config(CONFIG_PAGE_RAID_VOL_0 *vol)
1133 {
1134 	int i;
1135 
1136 	printf("Volume Configuration (Debug):\n");
1137 	printf(
1138    " Page Header: Type 0x%02x Number 0x%02x Length 0x%02x(%u) Version 0x%02x\n",
1139 	    vol->Header.PageType, vol->Header.PageNumber,
1140 	    vol->Header.PageLength, vol->Header.PageLength * 4,
1141 	    vol->Header.PageVersion);
1142 	printf("     Address: %d:%d IOC %d\n", vol->VolumeBus, vol->VolumeID,
1143 	    vol->VolumeIOC);
1144 	printf("        Type: %d (%s)\n", vol->VolumeType,
1145 	    mpt_raid_level(vol->VolumeType));
1146 	printf("      Status: %s (Flags 0x%02x)\n",
1147 	    mpt_volstate(vol->VolumeStatus.State), vol->VolumeStatus.Flags);
1148 	printf("    Settings: 0x%04x (Spare Pools 0x%02x)\n",
1149 	    vol->VolumeSettings.Settings, vol->VolumeSettings.HotSparePool);
1150 	printf("      MaxLBA: %ju\n", (uintmax_t)vol->MaxLBAHigh << 32 |
1151 	    vol->MaxLBA);
1152 	printf(" Stripe Size: %ld\n", (long)vol->StripeSize * 512);
1153 	printf(" %d Disks:\n", vol->NumPhysDisks);
1154 
1155 	for (i = 0; i < vol->NumPhysDisks; i++)
1156 		printf("    Disk %d: Num 0x%02x Map 0x%02x\n", i,
1157 		    vol->PhysDisk[i].PhysDiskNum, vol->PhysDisk[i].PhysDiskMap);
1158 }
1159 
1160 static int
1161 debug_config(int ac, char **av)
1162 {
1163 	CONFIG_PAGE_RAID_VOL_0 *vol;
1164 	U8 VolumeBus, VolumeID;
1165 	int error, fd;
1166 
1167 	if (ac != 2) {
1168 		warnx("debug: volume required");
1169 		return (EINVAL);
1170 	}
1171 
1172 	fd = mpt_open(mpt_unit);
1173 	if (fd < 0) {
1174 		error = errno;
1175 		warn("mpt_open");
1176 		return (error);
1177 	}
1178 
1179 	error = mpt_lookup_volume(fd, av[1], &VolumeBus, &VolumeID);
1180 	if (error) {
1181 		warnc(error, "Invalid volume: %s", av[1]);
1182 		return (error);
1183 	}
1184 
1185 	vol = mpt_vol_info(fd, VolumeBus, VolumeID, NULL);
1186 	if (vol == NULL) {
1187 		error = errno;
1188 		warn("Failed to get volume info");
1189 		return (error);
1190 	}
1191 
1192 	dump_config(vol);
1193 	free(vol);
1194 	close(fd);
1195 
1196 	return (0);
1197 }
1198 MPT_COMMAND(top, debug, debug_config);
1199 #endif
1200