NetBSD/sys/dev/ata/ata_raidvar.h

129 lines
4.2 KiB
C

/* $NetBSD: ata_raidvar.h,v 1.4 2005/12/11 12:21:14 christos Exp $ */
/*
* Copyright (c) 2003 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*/
#ifndef _DEV_ATA_ATA_RAIDVAR_H_
#define _DEV_ATA_ATA_RAIDVAR_H_
#include <sys/queue.h>
/*
* Types of RAID configurations we support. Do not change the order
* of this list, as it will change the order in which the arrays are
* sorted.
*
* If this list is updated, ensure the array in
* ata_raid.c:ata_raid_type_name() is also updated.
*/
#define ATA_RAID_TYPE_PROMISE 0
#define ATA_RAID_TYPE_ADAPTEC 1
#define ATA_RAID_TYPE_MAX 1
/*
* Max # of disks supported by a single array. This is limited by
* the number that the individual controller config blocks can support:
*
* Promise 8
*/
#define ATA_RAID_MAX_DISKS 8
struct ataraid_disk_info {
struct device *adi_dev; /* disk's device */
int adi_status; /* disk's status */
u_int adi_sectors;
u_int adi_compsize; /* in sectors */
};
/* adi_status */
#define ADI_S_ONLINE 0x01
#define ADI_S_ASSIGNED 0x02
#define ADI_S_SPARE 0x04
struct ataraid_array_info {
TAILQ_ENTRY(ataraid_array_info) aai_list;
struct device *aai_ld; /* associated logical disk */
u_int aai_type; /* array type */
u_int aai_arrayno; /* array number */
int aai_level; /* RAID level */
int aai_generation; /* config generaion # */
int aai_status; /* array status */
/* Geometry info. */
u_int aai_interleave; /* stripe size */
u_int aai_width; /* array width */
u_int aai_ndisks; /* number of disks */
u_int aai_heads; /* tracks/cyl */
u_int aai_sectors; /* secs/track */
u_int aai_cylinders; /* cyl/unit */
u_int aai_capacity; /* in sectors */
u_int aai_offset; /* component start offset */
u_int aai_reserved; /* component reserved sectors */
struct ataraid_disk_info aai_disks[ATA_RAID_MAX_DISKS];
};
/* aai_level */
#define AAI_L_SPAN 0x01
#define AAI_L_RAID0 0x02
#define AAI_L_RAID1 0x04
/* aai_status */
#define AAI_S_READY 0x01
#define AAI_S_DEGRADED 0x02
struct vnode;
struct wd_softc;
typedef TAILQ_HEAD(, ataraid_array_info) ataraid_array_info_list_t;
extern ataraid_array_info_list_t ataraid_array_info_list;
void ata_raid_check_component(struct device *);
const char *ata_raid_type_name(u_int);
struct ataraid_array_info *ata_raid_get_array_info(u_int, u_int);
int ata_raid_config_block_rw(struct vnode *, daddr_t, void *,
size_t, int);
/* Promise RAID support */
int ata_raid_read_config_promise(struct wd_softc *);
/* Adaptec HostRAID support */
int ata_raid_read_config_adaptec(struct wd_softc *);
#endif /* _DEV_ATA_ATA_RAIDVAR_H_ */