freebsd-dev/sys/dev/ata/ata-raid.h
Søren Schmidt e1605c6270 Major update of the ATA RAID code, part 2:
More cleanups of the RAID1 failure mode code.

Add functionality that writes the changed RAID config setup
back to the disks (in controller BIOS specific format), so
that a reboot will make the BIOS pick up the changed config.
2002-02-12 11:35:15 +00:00

214 lines
6.1 KiB
C

/*-
* 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.
*
* $FreeBSD$
*/
struct ar_disk {
struct ata_device *device;
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
};
#define MAX_ARRAYS 16
#define MAX_DISKS 16
#define AR_PROXIMITY 2048
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
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 bytes */
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 */
dev_t dev; /* device place holder */
};
struct ar_buf {
struct bio bp;
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_DOWN 0x00
#define HPT_O_RAID01DEGRADED 0x01
#define HPT_O_RAID01DST 0x02
#define HPT_O_RAID01SRC 0x03
#define HPT_O_READY 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[60];
} __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) ((u_int64_t)x.device->channel->unit << 48) | \
((u_int64_t)(x.device->unit != 0) << 56)
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;
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;
struct { /* 0x240 */
u_int8_t flags;
u_int8_t dummy_0;
u_int8_t channel;
u_int8_t device;
u_int64_t magic_0;
} disk[8];
} raid;
int32_t filler2[346];
u_int32_t checksum;
} __attribute__((packed));
int ata_raid_probe(struct ad_softc *);
void ata_raid_attach(void);