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freebsd/sys/dev/ata/ata-raid.h

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/*-
* Copyright (c) 2000,2001,2002 Søren Schmidt <sos@FreeBSD.org>
* All rights reserved.
*
* 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,
* without modification, immediately at the beginning of the file.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*
* $FreeBSD$
*/
/* misc defines */
#define MAX_ARRAYS 16
#define MAX_DISKS 16
#define AR_PROXIMITY 2048
#define AR_READ 0x01
#define AR_WRITE 0x02
#define AR_WAIT 0x04
#define AR_STRATEGY(x) (x)->bio_dev->si_disk->d_devsw->d_strategy((x))
#define AD_SOFTC(x) ((struct ad_softc *)(x.device->driver))
#define ATA_MAGIC "FreeBSD ATA driver RAID "
struct ar_disk {
struct ata_device *device;
u_int64_t disk_sectors; /* sectors on this disk */
off_t last_lba; /* last lba used */
int flags;
#define AR_DF_PRESENT 0x00000001
#define AR_DF_ASSIGNED 0x00000002
#define AR_DF_SPARE 0x00000004
#define AR_DF_ONLINE 0x00000008
};
struct ar_softc {
int lun;
int32_t magic_0; /* ident for this array */
int32_t magic_1; /* ident for this array */
int flags;
#define AR_F_RAID0 0x0001 /* STRIPE */
#define AR_F_RAID1 0x0002 /* MIRROR */
#define AR_F_SPAN 0x0004 /* SPAN */
#define AR_F_READY 0x0100
#define AR_F_DEGRADED 0x0200
#define AR_F_REBUILDING 0x0400
#define AR_F_PROMISE_RAID 0x1000
#define AR_F_HIGHPOINT_RAID 0x2000
#define AR_F_FREEBSD_RAID 0x4000
int total_disks; /* number of disks in this array */
int generation; /* generation of this array */
struct ar_disk disks[MAX_DISKS+1]; /* ptr to each disk in array */
int width; /* array width in disks */
u_int16_t heads;
u_int16_t sectors;
u_int32_t cylinders;
u_int64_t total_sectors;
int interleave; /* interleave in blocks */
int reserved; /* sectors that are NOT to be used */
int offset; /* offset from start of disk */
u_int64_t lock_start; /* start of locked area for rebuild */
u_int64_t lock_end; /* end of locked area for rebuild */
struct disk disk; /* disklabel/slice stuff */
struct proc *pid; /* rebuilder process id */
dev_t dev; /* device place holder */
};
struct ar_buf {
struct bio bp; /* must be first element! */
struct bio *org;
struct ar_buf *mirror;
int drive;
int flags;
#define AB_F_DONE 0x01
};
#define HPT_LBA 9
struct highpoint_raid_conf {
int8_t filler1[32];
u_int32_t magic; /* 0x20 */
#define HPT_MAGIC_OK 0x5a7816f0
#define HPT_MAGIC_BAD 0x5a7816fd
u_int32_t magic_0;
u_int32_t magic_1;
u_int32_t order;
#define HPT_O_RAID0 0x01
#define HPT_O_RAID1 0x02
#define HPT_O_OK 0x04
u_int8_t array_width;
u_int8_t stripe_shift;
u_int8_t type;
#define HPT_T_RAID0 0x00
#define HPT_T_RAID1 0x01
#define HPT_T_RAID01_RAID0 0x02
#define HPT_T_SPAN 0x03
#define HPT_T_RAID_3 0x04
#define HPT_T_RAID_5 0x05
#define HPT_T_SINGLEDISK 0x06
#define HPT_T_RAID01_RAID1 0x07
u_int8_t disk_number;
u_int32_t total_sectors;
u_int32_t disk_mode;
u_int32_t boot_mode;
u_int8_t boot_disk;
u_int8_t boot_protect;
u_int8_t error_log_entries;
u_int8_t error_log_index;
struct {
u_int32_t timestamp;
u_int8_t reason;
#define HPT_R_REMOVED 0xfe
#define HPT_R_BROKEN 0xff
u_int8_t disk;
u_int8_t status;
u_int8_t sectors;
u_int32_t lba;
} errorlog[32];
int8_t filler2[16];
u_int32_t rebuild_lba;
u_int8_t dummy_1;
u_int8_t name_1[15];
u_int8_t dummy_2;
u_int8_t name_2[15];
int8_t filler3[8];
} __attribute__((packed));
#define PR_LBA(adp) \
(((adp->total_secs / (adp->heads * adp->sectors)) * \
adp->heads * adp->sectors) - adp->sectors)
struct promise_raid_conf {
char promise_id[24];
#define PR_MAGIC "Promise Technology, Inc."
u_int32_t dummy_0;
u_int64_t magic_0;
#define PR_MAGIC0(x) (x.device ? ((u_int64_t)x.device->channel->unit<<48) | \
((u_int64_t)(x.device->unit != 0) << 56) : 0)
u_int16_t magic_1;
u_int32_t magic_2;
u_int8_t filler1[470];
struct {
u_int32_t integrity; /* 0x200 */
#define PR_I_VALID 0x00000080
u_int8_t flags;
#define PR_F_VALID 0x00000001
#define PR_F_ONLINE 0x00000002
#define PR_F_ASSIGNED 0x00000004
#define PR_F_SPARE 0x00000008
#define PR_F_DUPLICATE 0x00000010
#define PR_F_REDIR 0x00000020
#define PR_F_DOWN 0x00000040
#define PR_F_READY 0x00000080
u_int8_t disk_number;
u_int8_t channel;
u_int8_t device;
u_int64_t magic_0 __attribute__((packed));
u_int32_t disk_offset; /* 0x210 */
u_int32_t disk_sectors;
u_int32_t rebuild_lba;
u_int16_t generation;
u_int8_t status;
#define PR_S_VALID 0x01
#define PR_S_ONLINE 0x02
#define PR_S_INITED 0x04
#define PR_S_READY 0x08
#define PR_S_DEGRADED 0x10
#define PR_S_MARKED 0x20
#define PR_S_FUNCTIONAL 0x80
u_int8_t type;
#define PR_T_RAID0 0x00
#define PR_T_RAID1 0x01
#define PR_T_RAID3 0x02
#define PR_T_RAID5 0x04
#define PR_T_SPAN 0x08
u_int8_t total_disks; /* 0x220 */
u_int8_t stripe_shift;
u_int8_t array_width;
u_int8_t array_number;
u_int32_t total_sectors;
u_int16_t cylinders;
u_int8_t heads;
u_int8_t sectors;
int64_t magic_1 __attribute__((packed));
struct { /* 0x240 */
u_int8_t flags;
u_int8_t dummy_0;
u_int8_t channel;
u_int8_t device;
u_int64_t magic_0 __attribute__((packed));
} disk[8];
} raid;
int32_t filler2[346];
u_int32_t checksum;
} __attribute__((packed));
int ata_raiddisk_probe(struct ad_softc *);
int ata_raiddisk_attach(struct ad_softc *);
int ata_raiddisk_detach(struct ad_softc *);
void ata_raid_attach(void);
int ata_raid_create(struct raid_setup *);
int ata_raid_delete(int);
int ata_raid_status(int array, struct raid_status *);
int ata_raid_rebuild(int);
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