ata_raid_adaptec.c revision 1.2
1 /* $NetBSD: ata_raid_adaptec.c,v 1.2 2005/12/11 12:21:14 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2000,2001,2002 Sren Schmidt <sos (at) FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * Support for parsing Adaptec ATA RAID controller configuration blocks. 33 * 34 * Adapted to NetBSD by Allen K. Briggs 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: ata_raid_adaptec.c,v 1.2 2005/12/11 12:21:14 christos Exp $"); 39 40 #include <sys/param.h> 41 #include <sys/buf.h> 42 #include <sys/bufq.h> 43 #include <sys/conf.h> 44 #include <sys/device.h> 45 #include <sys/disk.h> 46 #include <sys/disklabel.h> 47 #include <sys/fcntl.h> 48 #include <sys/malloc.h> 49 #include <sys/vnode.h> 50 51 #include <miscfs/specfs/specdev.h> 52 53 #include <dev/ata/atareg.h> 54 #include <dev/ata/atavar.h> 55 #include <dev/ata/wdvar.h> 56 57 #include <dev/ata/ata_raidreg.h> 58 #include <dev/ata/ata_raidvar.h> 59 60 #ifdef ATA_RAID_DEBUG 61 #define DPRINTF(x) printf x 62 #else 63 #define DPRINTF(x) /* nothing */ 64 #endif 65 66 int 67 ata_raid_read_config_adaptec(struct wd_softc *sc) 68 { 69 struct adaptec_raid_conf *info; 70 struct atabus_softc *atabus; 71 struct vnode *vp; 72 int bmajor, error; 73 dev_t dev; 74 uint32_t gen, drive; 75 struct ataraid_array_info *aai; 76 struct ataraid_disk_info *adi; 77 78 info = malloc(sizeof(*info), M_DEVBUF, M_WAITOK); 79 80 bmajor = devsw_name2blk(sc->sc_dev.dv_xname, NULL, 0); 81 82 /* Get a vnode for the raw partition of this disk. */ 83 dev = MAKEDISKDEV(bmajor, sc->sc_dev.dv_unit, RAW_PART); 84 error = bdevvp(dev, &vp); 85 if (error) 86 goto out; 87 88 error = VOP_OPEN(vp, FREAD, NOCRED, 0); 89 if (error) { 90 vput(vp); 91 goto out; 92 } 93 94 error = ata_raid_config_block_rw(vp, ADP_LBA(sc), info, 95 sizeof(*info), B_READ); 96 vput(vp); 97 if (error) { 98 printf("%s: error %d reading Adaptec config block\n", 99 sc->sc_dev.dv_xname, error); 100 goto out; 101 } 102 103 info->magic_0 = be32toh(info->magic_0); 104 info->magic_1 = be32toh(info->magic_1); 105 info->magic_2 = be32toh(info->magic_2); 106 info->magic_3 = be32toh(info->magic_3); 107 info->magic_4 = be32toh(info->magic_4); 108 /* Check the signature. */ 109 if (info->magic_0 != ADP_MAGIC_0 || info->magic_3 != ADP_MAGIC_3) { 110 DPRINTF(("%s: Adaptec signature check failed\n", 111 sc->sc_dev.dv_xname)); 112 error = ESRCH; 113 goto out; 114 } 115 116 /* 117 * Lookup or allocate a new array info structure for 118 * this array. 119 */ 120 aai = ata_raid_get_array_info(ATA_RAID_TYPE_ADAPTEC, 121 be32toh(info->configs[0].disk_number)); 122 123 gen = be32toh(info->generation); 124 125 if (gen == 0 || gen > aai->aai_generation) { 126 aai->aai_generation = gen; 127 128 aai->aai_status = AAI_S_READY; 129 130 switch (info->configs[0].type) { 131 case ADP_T_RAID0: 132 aai->aai_level = AAI_L_RAID0; 133 aai->aai_interleave = 134 (be16toh(info->configs[0].stripe_sectors) >> 1); 135 aai->aai_width = be16toh(info->configs[0].total_disks); 136 break; 137 138 case ADP_T_RAID1: 139 aai->aai_level = AAI_L_RAID1; 140 aai->aai_interleave = 0; 141 aai->aai_width = be16toh(info->configs[0].total_disks) 142 / 2; 143 break; 144 145 default: 146 aprint_error("%s: unknown Adaptec RAID type 0x%02x\n", 147 sc->sc_dev.dv_xname, info->configs[0].type); 148 error = EINVAL; 149 goto out; 150 } 151 152 aai->aai_type = ATA_RAID_TYPE_ADAPTEC; 153 aai->aai_ndisks = be16toh(info->configs[0].total_disks); 154 aai->aai_capacity = be32toh(info->configs[0].sectors); 155 aai->aai_heads = 255; 156 aai->aai_sectors = 63; 157 aai->aai_cylinders = aai->aai_capacity / (63 * 255); 158 aai->aai_offset = 0; 159 aai->aai_reserved = 17; 160 161 /* XXX - bogus. RAID1 shouldn't really have an interleave */ 162 if (aai->aai_interleave == 0) 163 aai->aai_interleave = aai->aai_capacity; 164 } 165 166 atabus = (struct atabus_softc *) sc->sc_dev.dv_parent; 167 drive = atabus->sc_chan->ch_channel; 168 if (drive >= aai->aai_ndisks) { 169 aprint_error("%s: drive number %d doesn't make sense within " 170 "%d-disk array\n", 171 sc->sc_dev.dv_xname, drive, aai->aai_ndisks); 172 error = EINVAL; 173 goto out; 174 } 175 176 adi = &aai->aai_disks[drive]; 177 adi->adi_dev = &sc->sc_dev; 178 adi->adi_status = ADI_S_ONLINE | ADI_S_ASSIGNED; 179 adi->adi_sectors = aai->aai_capacity; 180 adi->adi_compsize = be32toh(info->configs[drive+1].sectors); 181 182 error = 0; 183 184 out: 185 free(info, M_DEVBUF); 186 return (error); 187 } 188
Indexes created Thu Oct 16 14:10:15 GMT 2025