1 /* $NetBSD: ata_raidvar.h,v 1.5 2007/03/27 00:10:20 garbled Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #ifndef _DEV_ATA_ATA_RAIDVAR_H_ 39 #define _DEV_ATA_ATA_RAIDVAR_H_ 40 41 #include <sys/queue.h> 42 43 /* 44 * Types of RAID configurations we support. Do not change the order 45 * of this list, as it will change the order in which the arrays are 46 * sorted. 47 * 48 * If this list is updated, ensure the array in 49 * ata_raid.c:ata_raid_type_name() is also updated. 50 */ 51 #define ATA_RAID_TYPE_PROMISE 0 52 #define ATA_RAID_TYPE_ADAPTEC 1 53 #define ATA_RAID_TYPE_VIA 2 54 #define ATA_RAID_TYPE_MAX 2 55 56 /* 57 * Max # of disks supported by a single array. This is limited by 58 * the number that the individual controller config blocks can support: 59 * 60 * Promise 8 61 */ 62 #define ATA_RAID_MAX_DISKS 8 63 64 struct ataraid_disk_info { 65 struct device *adi_dev; /* disk's device */ 66 int adi_status; /* disk's status */ 67 u_int adi_sectors; 68 u_int adi_compsize; /* in sectors */ 69 }; 70 71 /* adi_status */ 72 #define ADI_S_ONLINE 0x01 73 #define ADI_S_ASSIGNED 0x02 74 #define ADI_S_SPARE 0x04 75 76 struct ataraid_array_info { 77 TAILQ_ENTRY(ataraid_array_info) aai_list; 78 79 struct device *aai_ld; /* associated logical disk */ 80 81 u_int aai_type; /* array type */ 82 u_int aai_arrayno; /* array number */ 83 int aai_level; /* RAID level */ 84 int aai_generation; /* config generaion # */ 85 int aai_status; /* array status */ 86 87 /* Geometry info. */ 88 u_int aai_interleave; /* stripe size */ 89 u_int aai_width; /* array width */ 90 u_int aai_ndisks; /* number of disks */ 91 u_int aai_heads; /* tracks/cyl */ 92 u_int aai_sectors; /* secs/track */ 93 u_int aai_cylinders; /* cyl/unit */ 94 u_int aai_capacity; /* in sectors */ 95 u_int aai_offset; /* component start offset */ 96 u_int aai_reserved; /* component reserved sectors */ 97 98 struct ataraid_disk_info aai_disks[ATA_RAID_MAX_DISKS]; 99 }; 100 101 /* aai_level */ 102 #define AAI_L_SPAN 0x01 103 #define AAI_L_RAID0 0x02 104 #define AAI_L_RAID1 0x04 105 #define AAI_L_RAID5 0x08 106 107 /* aai_status */ 108 #define AAI_S_READY 0x01 109 #define AAI_S_DEGRADED 0x02 110 111 struct vnode; 112 struct wd_softc; 113 114 typedef TAILQ_HEAD(, ataraid_array_info) ataraid_array_info_list_t; 115 extern ataraid_array_info_list_t ataraid_array_info_list; 116 117 void ata_raid_check_component(struct device *); 118 const char *ata_raid_type_name(u_int); 119 120 struct ataraid_array_info *ata_raid_get_array_info(u_int, u_int); 121 int ata_raid_config_block_rw(struct vnode *, daddr_t, void *, 122 size_t, int); 123 124 /* Promise RAID support */ 125 int ata_raid_read_config_promise(struct wd_softc *); 126 127 /* Adaptec HostRAID support */ 128 int ata_raid_read_config_adaptec(struct wd_softc *); 129 130 /* VIA V-RAID support */ 131 int ata_raid_read_config_via(struct wd_softc *); 132 133 #endif /* _DEV_ATA_ATA_RAIDVAR_H_ */ 134