122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
/* $NetBSD: ata_raidvar.h,v 1.1 2003/01/27 18:21:28 thorpej Exp $ */
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/*
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* Copyright (c) 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DEV_ATA_ATA_RAIDVAR_H_
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#define _DEV_ATA_ATA_RAIDVAR_H_
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#include <sys/queue.h>
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/*
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* Types of RAID configurations we support. Do not change the order
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* of this list, as it will change the order in which the arrays are
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* sorted.
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*/
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#define ATA_RAID_TYPE_PROMISE 0
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#define ATA_RAID_TYPE_MAX 0
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/*
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* Max # of disks supported by a single array. This is limited by
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* the number that the individual controller config blocks can support:
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*
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* Promise 8
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*/
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#define ATA_RAID_MAX_DISKS 8
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struct ataraid_disk_info {
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struct device *adi_dev; /* disk's device */
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int adi_status; /* disk's status */
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u_int adi_sectors;
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u_int adi_compsize; /* in sectors */
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};
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/* adi_status */
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#define ADI_S_ONLINE 0x01
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#define ADI_S_ASSIGNED 0x02
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#define ADI_S_SPARE 0x04
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struct ataraid_array_info {
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TAILQ_ENTRY(ataraid_array_info) aai_list;
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struct device *aai_ld; /* associated logical disk */
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u_int aai_type; /* array type */
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u_int aai_arrayno; /* array number */
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int aai_level; /* RAID level */
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int aai_generation; /* config generaion # */
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int aai_status; /* array status */
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/* Geometry info. */
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u_int aai_interleave; /* stripe size */
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u_int aai_width; /* array width */
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u_int aai_ndisks; /* number of disks */
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u_int aai_heads; /* tracks/cyl */
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u_int aai_sectors; /* secs/track */
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u_int aai_cylinders; /* cyl/unit */
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u_int aai_capacity; /* in sectors */
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u_int aai_offset; /* component start offset */
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u_int aai_reserved; /* component reserved sectors */
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struct ataraid_disk_info aai_disks[ATA_RAID_MAX_DISKS];
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};
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/* aai_level */
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#define AAI_L_SPAN 0x01
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#define AAI_L_RAID0 0x02
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#define AAI_L_RAID1 0x04
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/* aai_status */
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#define AAI_S_READY 0x01
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#define AAI_S_DEGRADED 0x02
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struct vnode;
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struct wd_softc;
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typedef TAILQ_HEAD(, ataraid_array_info) ataraid_array_info_list_t;
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extern ataraid_array_info_list_t ataraid_array_info_list;
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void ata_raid_check_component(struct device *);
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const char *ata_raid_type_name(u_int);
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struct ataraid_array_info *ata_raid_get_array_info(u_int, u_int);
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int ata_raid_config_block_rw(struct vnode *, daddr_t, void *,
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size_t, int);
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/* Promise RAID support */
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int ata_raid_read_config_promise(struct wd_softc *);
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#endif /* _DEV_ATA_ATA_RAIDVAR_H_ */
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