1 /* $NetBSD: ata_raidvar.h,v 1.1 2003/01/27 18:21:28 thorpej 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 #define ATA_RAID_TYPE_PROMISE 0 49 #define ATA_RAID_TYPE_MAX 0 50 51 /* 52 * Max # of disks supported by a single array. This is limited by 53 * the number that the individual controller config blocks can support: 54 * 55 * Promise 8 56 */ 57 #define ATA_RAID_MAX_DISKS 8 58 59 struct ataraid_disk_info { 60 struct device *adi_dev; /* disk's device */ 61 int adi_status; /* disk's status */ 62 u_int adi_sectors; 63 u_int adi_compsize; /* in sectors */ 64 }; 65 66 /* adi_status */ 67 #define ADI_S_ONLINE 0x01 68 #define ADI_S_ASSIGNED 0x02 69 #define ADI_S_SPARE 0x04 70 71 struct ataraid_array_info { 72 TAILQ_ENTRY(ataraid_array_info) aai_list; 73 74 struct device *aai_ld; /* associated logical disk */ 75 76 u_int aai_type; /* array type */ 77 u_int aai_arrayno; /* array number */ 78 int aai_level; /* RAID level */ 79 int aai_generation; /* config generaion # */ 80 int aai_status; /* array status */ 81 82 /* Geometry info. */ 83 u_int aai_interleave; /* stripe size */ 84 u_int aai_width; /* array width */ 85 u_int aai_ndisks; /* number of disks */ 86 u_int aai_heads; /* tracks/cyl */ 87 u_int aai_sectors; /* secs/track */ 88 u_int aai_cylinders; /* cyl/unit */ 89 u_int aai_capacity; /* in sectors */ 90 u_int aai_offset; /* component start offset */ 91 u_int aai_reserved; /* component reserved sectors */ 92 93 struct ataraid_disk_info aai_disks[ATA_RAID_MAX_DISKS]; 94 }; 95 96 /* aai_level */ 97 #define AAI_L_SPAN 0x01 98 #define AAI_L_RAID0 0x02 99 #define AAI_L_RAID1 0x04 100 101 /* aai_status */ 102 #define AAI_S_READY 0x01 103 #define AAI_S_DEGRADED 0x02 104 105 struct vnode; 106 struct wd_softc; 107 108 typedef TAILQ_HEAD(, ataraid_array_info) ataraid_array_info_list_t; 109 extern ataraid_array_info_list_t ataraid_array_info_list; 110 111 void ata_raid_check_component(struct device *); 112 const char *ata_raid_type_name(u_int); 113 114 struct ataraid_array_info *ata_raid_get_array_info(u_int, u_int); 115 int ata_raid_config_block_rw(struct vnode *, daddr_t, void *, 116 size_t, int); 117 118 /* Promise RAID support */ 119 int ata_raid_read_config_promise(struct wd_softc *); 120 121 #endif /* _DEV_ATA_ATA_RAIDVAR_H_ */ 122