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ata_raidvar.h revision 1.2.2.2
      1  1.2.2.2     yamt /*	$NetBSD: ata_raidvar.h,v 1.2.2.2 2007/09/03 14:33:26 yamt Exp $	*/
      2      1.1  thorpej 
      3      1.1  thorpej /*
      4      1.1  thorpej  * Copyright (c) 2003 Wasabi Systems, Inc.
      5      1.1  thorpej  * All rights reserved.
      6      1.1  thorpej  *
      7      1.1  thorpej  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8      1.1  thorpej  *
      9      1.1  thorpej  * Redistribution and use in source and binary forms, with or without
     10      1.1  thorpej  * modification, are permitted provided that the following conditions
     11      1.1  thorpej  * are met:
     12      1.1  thorpej  * 1. Redistributions of source code must retain the above copyright
     13      1.1  thorpej  *    notice, this list of conditions and the following disclaimer.
     14      1.1  thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     15      1.1  thorpej  *    notice, this list of conditions and the following disclaimer in the
     16      1.1  thorpej  *    documentation and/or other materials provided with the distribution.
     17      1.1  thorpej  * 3. All advertising materials mentioning features or use of this software
     18      1.1  thorpej  *    must display the following acknowledgement:
     19      1.1  thorpej  *	This product includes software developed for the NetBSD Project by
     20      1.1  thorpej  *	Wasabi Systems, Inc.
     21      1.1  thorpej  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22      1.1  thorpej  *    or promote products derived from this software without specific prior
     23      1.1  thorpej  *    written permission.
     24      1.1  thorpej  *
     25      1.1  thorpej  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26      1.1  thorpej  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27      1.1  thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28      1.1  thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29      1.1  thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30      1.1  thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31      1.1  thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32      1.1  thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33      1.1  thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34      1.1  thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35      1.1  thorpej  * POSSIBILITY OF SUCH DAMAGE.
     36      1.1  thorpej  */
     37      1.1  thorpej 
     38      1.1  thorpej #ifndef _DEV_ATA_ATA_RAIDVAR_H_
     39      1.1  thorpej #define	_DEV_ATA_ATA_RAIDVAR_H_
     40      1.1  thorpej 
     41      1.1  thorpej #include <sys/queue.h>
     42      1.1  thorpej 
     43      1.1  thorpej /*
     44      1.1  thorpej  * Types of RAID configurations we support.  Do not change the order
     45      1.1  thorpej  * of this list, as it will change the order in which the arrays are
     46      1.1  thorpej  * sorted.
     47  1.2.2.1     yamt  *
     48  1.2.2.1     yamt  * If this list is updated, ensure the array in
     49  1.2.2.1     yamt  * ata_raid.c:ata_raid_type_name() is also updated.
     50      1.1  thorpej  */
     51      1.1  thorpej #define	ATA_RAID_TYPE_PROMISE	0
     52      1.2   briggs #define	ATA_RAID_TYPE_ADAPTEC	1
     53  1.2.2.2     yamt #define	ATA_RAID_TYPE_VIA	2
     54  1.2.2.2     yamt #define	ATA_RAID_TYPE_MAX	2
     55      1.1  thorpej 
     56      1.1  thorpej /*
     57      1.1  thorpej  * Max # of disks supported by a single array.  This is limited by
     58      1.1  thorpej  * the number that the individual controller config blocks can support:
     59      1.1  thorpej  *
     60      1.1  thorpej  *	Promise		8
     61      1.1  thorpej  */
     62      1.1  thorpej #define	ATA_RAID_MAX_DISKS	8
     63      1.1  thorpej 
     64      1.1  thorpej struct ataraid_disk_info {
     65      1.1  thorpej 	struct device *adi_dev;		/* disk's device */
     66      1.1  thorpej 	int	adi_status;		/* disk's status */
     67      1.1  thorpej 	u_int	adi_sectors;
     68      1.1  thorpej 	u_int	adi_compsize;		/* in sectors */
     69      1.1  thorpej };
     70      1.1  thorpej 
     71      1.1  thorpej /* adi_status */
     72      1.1  thorpej #define	ADI_S_ONLINE		0x01
     73      1.1  thorpej #define	ADI_S_ASSIGNED		0x02
     74      1.1  thorpej #define	ADI_S_SPARE		0x04
     75      1.1  thorpej 
     76      1.1  thorpej struct ataraid_array_info {
     77      1.1  thorpej 	TAILQ_ENTRY(ataraid_array_info) aai_list;
     78      1.1  thorpej 
     79      1.1  thorpej 	struct device *aai_ld;		/* associated logical disk */
     80      1.1  thorpej 
     81      1.1  thorpej 	u_int	aai_type;		/* array type */
     82      1.1  thorpej 	u_int	aai_arrayno;		/* array number */
     83      1.1  thorpej 	int	aai_level;		/* RAID level */
     84      1.1  thorpej 	int	aai_generation;		/* config generaion # */
     85      1.1  thorpej 	int	aai_status;		/* array status */
     86      1.1  thorpej 
     87      1.1  thorpej 	/* Geometry info. */
     88      1.1  thorpej 	u_int	aai_interleave;		/* stripe size */
     89      1.1  thorpej 	u_int	aai_width;		/* array width */
     90      1.1  thorpej 	u_int	aai_ndisks;		/* number of disks */
     91      1.1  thorpej 	u_int	aai_heads;		/* tracks/cyl */
     92      1.1  thorpej 	u_int	aai_sectors;		/* secs/track */
     93      1.1  thorpej 	u_int	aai_cylinders;		/* cyl/unit */
     94      1.1  thorpej 	u_int	aai_capacity;		/* in sectors */
     95      1.1  thorpej 	u_int	aai_offset;		/* component start offset */
     96      1.1  thorpej 	u_int	aai_reserved;		/* component reserved sectors */
     97      1.1  thorpej 
     98      1.1  thorpej 	struct ataraid_disk_info aai_disks[ATA_RAID_MAX_DISKS];
     99      1.1  thorpej };
    100      1.1  thorpej 
    101      1.1  thorpej /* aai_level */
    102      1.1  thorpej #define	AAI_L_SPAN		0x01
    103      1.1  thorpej #define	AAI_L_RAID0		0x02
    104      1.1  thorpej #define	AAI_L_RAID1		0x04
    105  1.2.2.2     yamt #define	AAI_L_RAID5		0x08
    106      1.1  thorpej 
    107      1.1  thorpej /* aai_status */
    108      1.1  thorpej #define	AAI_S_READY		0x01
    109      1.1  thorpej #define	AAI_S_DEGRADED		0x02
    110      1.1  thorpej 
    111      1.1  thorpej struct vnode;
    112      1.1  thorpej struct wd_softc;
    113      1.1  thorpej 
    114      1.1  thorpej typedef TAILQ_HEAD(, ataraid_array_info) ataraid_array_info_list_t;
    115      1.1  thorpej extern ataraid_array_info_list_t ataraid_array_info_list;
    116      1.1  thorpej 
    117      1.1  thorpej void	ata_raid_check_component(struct device *);
    118      1.1  thorpej const char *ata_raid_type_name(u_int);
    119      1.1  thorpej 
    120      1.1  thorpej struct ataraid_array_info *ata_raid_get_array_info(u_int, u_int);
    121      1.1  thorpej int	ata_raid_config_block_rw(struct vnode *, daddr_t, void *,
    122      1.1  thorpej 	    size_t, int);
    123      1.1  thorpej 
    124      1.1  thorpej /* Promise RAID support */
    125      1.1  thorpej int	ata_raid_read_config_promise(struct wd_softc *);
    126      1.1  thorpej 
    127      1.2   briggs /* Adaptec HostRAID support */
    128      1.2   briggs int	ata_raid_read_config_adaptec(struct wd_softc *);
    129      1.2   briggs 
    130  1.2.2.2     yamt /* VIA V-RAID support */
    131  1.2.2.2     yamt int	ata_raid_read_config_via(struct wd_softc *);
    132  1.2.2.2     yamt 
    133      1.1  thorpej #endif /* _DEV_ATA_ATA_RAIDVAR_H_ */
    134