ata_raid_intel.c revision 1.3.18.2
1 1.3.18.2 yamt /* $NetBSD: ata_raid_intel.c,v 1.3.18.2 2009/05/04 08:12:34 yamt Exp $ */ 2 1.3.18.2 yamt 3 1.3.18.2 yamt /*- 4 1.3.18.2 yamt * Copyright (c) 2000-2008 Sren Schmidt <sos (at) FreeBSD.org> 5 1.3.18.2 yamt * All rights reserved. 6 1.3.18.2 yamt * 7 1.3.18.2 yamt * Redistribution and use in source and binary forms, with or without 8 1.3.18.2 yamt * modification, are permitted provided that the following conditions 9 1.3.18.2 yamt * are met: 10 1.3.18.2 yamt * 1. Redistributions of source code must retain the above copyright 11 1.3.18.2 yamt * notice, this list of conditions and the following disclaimer, 12 1.3.18.2 yamt * without modification, immediately at the beginning of the file. 13 1.3.18.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 14 1.3.18.2 yamt * notice, this list of conditions and the following disclaimer in the 15 1.3.18.2 yamt * documentation and/or other materials provided with the distribution. 16 1.3.18.2 yamt * 17 1.3.18.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 1.3.18.2 yamt * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 1.3.18.2 yamt * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 1.3.18.2 yamt * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 1.3.18.2 yamt * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 1.3.18.2 yamt * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 1.3.18.2 yamt * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 1.3.18.2 yamt * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 1.3.18.2 yamt * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 1.3.18.2 yamt * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 1.3.18.2 yamt */ 28 1.3.18.2 yamt 29 1.3.18.2 yamt /* 30 1.3.18.2 yamt * Support for parsing Intel MatrixRAID controller configuration blocks. 31 1.3.18.2 yamt * 32 1.3.18.2 yamt * Adapted to NetBSD by Juan Romero Pardines (xtraeme (at) gmail.org). 33 1.3.18.2 yamt */ 34 1.3.18.2 yamt 35 1.3.18.2 yamt #include <sys/cdefs.h> 36 1.3.18.2 yamt __KERNEL_RCSID(0, "$NetBSD: ata_raid_intel.c,v 1.3.18.2 2009/05/04 08:12:34 yamt Exp $"); 37 1.3.18.2 yamt 38 1.3.18.2 yamt #include <sys/param.h> 39 1.3.18.2 yamt #include <sys/buf.h> 40 1.3.18.2 yamt #include <sys/bufq.h> 41 1.3.18.2 yamt #include <sys/conf.h> 42 1.3.18.2 yamt #include <sys/device.h> 43 1.3.18.2 yamt #include <sys/disk.h> 44 1.3.18.2 yamt #include <sys/disklabel.h> 45 1.3.18.2 yamt #include <sys/fcntl.h> 46 1.3.18.2 yamt #include <sys/malloc.h> 47 1.3.18.2 yamt #include <sys/vnode.h> 48 1.3.18.2 yamt #include <sys/kauth.h> 49 1.3.18.2 yamt 50 1.3.18.2 yamt #include <miscfs/specfs/specdev.h> 51 1.3.18.2 yamt 52 1.3.18.2 yamt #include <dev/ata/atareg.h> 53 1.3.18.2 yamt #include <dev/ata/atavar.h> 54 1.3.18.2 yamt #include <dev/ata/wdvar.h> 55 1.3.18.2 yamt 56 1.3.18.2 yamt #include <dev/ata/ata_raidreg.h> 57 1.3.18.2 yamt #include <dev/ata/ata_raidvar.h> 58 1.3.18.2 yamt 59 1.3.18.2 yamt #ifdef ATA_RAID_DEBUG 60 1.3.18.2 yamt #define DPRINTF(x) printf x 61 1.3.18.2 yamt #else 62 1.3.18.2 yamt #define DPRINTF(x) /* nothing */ 63 1.3.18.2 yamt #endif 64 1.3.18.2 yamt 65 1.3.18.2 yamt #ifdef ATA_RAID_DEBUG 66 1.3.18.2 yamt static const char * 67 1.3.18.2 yamt ata_raid_intel_type(int type) 68 1.3.18.2 yamt { 69 1.3.18.2 yamt static char buffer[16]; 70 1.3.18.2 yamt 71 1.3.18.2 yamt switch (type) { 72 1.3.18.2 yamt case INTEL_T_RAID0: 73 1.3.18.2 yamt return "RAID0"; 74 1.3.18.2 yamt case INTEL_T_RAID1: 75 1.3.18.2 yamt return "RAID1"; 76 1.3.18.2 yamt case INTEL_T_RAID5: 77 1.3.18.2 yamt return "RAID5"; 78 1.3.18.2 yamt default: 79 1.3.18.2 yamt sprintf(buffer, "UNKNOWN 0x%02x", type); 80 1.3.18.2 yamt return buffer; 81 1.3.18.2 yamt } 82 1.3.18.2 yamt } 83 1.3.18.2 yamt 84 1.3.18.2 yamt static void 85 1.3.18.2 yamt ata_raid_intel_print_info(struct intel_raid_conf *info) 86 1.3.18.2 yamt { 87 1.3.18.2 yamt struct intel_raid_mapping *map; 88 1.3.18.2 yamt int i, j; 89 1.3.18.2 yamt 90 1.3.18.2 yamt printf("********* ATA Intel MatrixRAID Metadata *********\n"); 91 1.3.18.2 yamt printf("intel_id <%.24s>\n", info->intel_id); 92 1.3.18.2 yamt printf("version <%.6s>\n", info->version); 93 1.3.18.2 yamt printf("checksum 0x%08x\n", info->checksum); 94 1.3.18.2 yamt printf("config_size 0x%08x\n", info->config_size); 95 1.3.18.2 yamt printf("config_id 0x%08x\n", info->config_id); 96 1.3.18.2 yamt printf("generation 0x%08x\n", info->generation); 97 1.3.18.2 yamt printf("total_disks %u\n", info->total_disks); 98 1.3.18.2 yamt printf("total_volumes %u\n", info->total_volumes); 99 1.3.18.2 yamt printf("DISK# serial disk sectors disk_id flags\n"); 100 1.3.18.2 yamt for (i = 0; i < info->total_disks; i++) { 101 1.3.18.2 yamt printf(" %d <%.16s> %u 0x%08x 0x%08x\n", 102 1.3.18.2 yamt i, info->disk[i].serial, info->disk[i].sectors, 103 1.3.18.2 yamt info->disk[i].id, info->disk[i].flags); 104 1.3.18.2 yamt } 105 1.3.18.2 yamt 106 1.3.18.2 yamt map = (struct intel_raid_mapping *)&info->disk[info->total_disks]; 107 1.3.18.2 yamt for (j = 0; j < info->total_volumes; j++) { 108 1.3.18.2 yamt printf("name %.16s\n", map->name); 109 1.3.18.2 yamt printf("total_sectors %ju\n", map->total_sectors); 110 1.3.18.2 yamt printf("state %u\n", map->state); 111 1.3.18.2 yamt printf("reserved %u\n", map->reserved); 112 1.3.18.2 yamt printf("offset %u\n", map->offset); 113 1.3.18.2 yamt printf("disk_sectors %u\n", map->disk_sectors); 114 1.3.18.2 yamt printf("stripe_count %u\n", map->stripe_count); 115 1.3.18.2 yamt printf("stripe_sectors %u\n", map->stripe_sectors); 116 1.3.18.2 yamt printf("status %u\n", map->status); 117 1.3.18.2 yamt printf("type %s\n", ata_raid_intel_type(map->type)); 118 1.3.18.2 yamt printf("total_disks %u\n", map->total_disks); 119 1.3.18.2 yamt printf("magic[0] 0x%02x\n", map->magic[0]); 120 1.3.18.2 yamt printf("magic[1] 0x%02x\n", map->magic[1]); 121 1.3.18.2 yamt printf("magic[2] 0x%02x\n", map->magic[2]); 122 1.3.18.2 yamt for (i = 0; i < map->total_disks; i++) 123 1.3.18.2 yamt printf(" disk %d at disk_idx 0x%08x\n", 124 1.3.18.2 yamt i, map->disk_idx[i]); 125 1.3.18.2 yamt 126 1.3.18.2 yamt map = (struct intel_raid_mapping *) 127 1.3.18.2 yamt &map->disk_idx[map->total_disks]; 128 1.3.18.2 yamt } 129 1.3.18.2 yamt printf("=================================================\n"); 130 1.3.18.2 yamt } 131 1.3.18.2 yamt #endif 132 1.3.18.2 yamt 133 1.3.18.2 yamt int 134 1.3.18.2 yamt ata_raid_read_config_intel(struct wd_softc *sc) 135 1.3.18.2 yamt { 136 1.3.18.2 yamt struct intel_raid_conf *info; 137 1.3.18.2 yamt struct intel_raid_mapping *map; 138 1.3.18.2 yamt struct ataraid_array_info *aai; 139 1.3.18.2 yamt struct ataraid_disk_info *adi; 140 1.3.18.2 yamt struct vnode *vp; 141 1.3.18.2 yamt uint32_t checksum, *ptr; 142 1.3.18.2 yamt static int curdrive; 143 1.3.18.2 yamt int bmajor, count, curvol = 0, error = 0; 144 1.3.18.2 yamt char *tmp; 145 1.3.18.2 yamt dev_t dev; 146 1.3.18.2 yamt 147 1.3.18.2 yamt info = malloc(1536, M_DEVBUF, M_WAITOK|M_ZERO); 148 1.3.18.2 yamt 149 1.3.18.2 yamt bmajor = devsw_name2blk(device_xname(sc->sc_dev), NULL, 0); 150 1.3.18.2 yamt 151 1.3.18.2 yamt /* Get a vnode for the raw partition of this disk. */ 152 1.3.18.2 yamt dev = MAKEDISKDEV(bmajor, device_unit(sc->sc_dev), RAW_PART); 153 1.3.18.2 yamt error = bdevvp(dev, &vp); 154 1.3.18.2 yamt if (error) 155 1.3.18.2 yamt goto out; 156 1.3.18.2 yamt 157 1.3.18.2 yamt error = VOP_OPEN(vp, FREAD, NOCRED); 158 1.3.18.2 yamt if (error) { 159 1.3.18.2 yamt vput(vp); 160 1.3.18.2 yamt goto out; 161 1.3.18.2 yamt } 162 1.3.18.2 yamt 163 1.3.18.2 yamt error = ata_raid_config_block_rw(vp, INTEL_LBA(sc), info, 164 1.3.18.2 yamt 1024, B_READ); 165 1.3.18.2 yamt VOP_CLOSE(vp, FREAD, NOCRED); 166 1.3.18.2 yamt vput(vp); 167 1.3.18.2 yamt if (error) { 168 1.3.18.2 yamt DPRINTF(("%s: error %d reading Intel MatrixRAID config block\n", 169 1.3.18.2 yamt device_xname(sc->sc_dev), error)); 170 1.3.18.2 yamt goto out; 171 1.3.18.2 yamt } 172 1.3.18.2 yamt 173 1.3.18.2 yamt tmp = (char *)info; 174 1.3.18.2 yamt (void)memcpy(tmp + 1024, tmp, 512); 175 1.3.18.2 yamt (void)memcpy(tmp, tmp + 512, 1024); 176 1.3.18.2 yamt (void)memset(tmp + 1024, 0, 512); 177 1.3.18.2 yamt 178 1.3.18.2 yamt /* Check if this is a Intel RAID struct */ 179 1.3.18.2 yamt if (strncmp(info->intel_id, INTEL_MAGIC, strlen(INTEL_MAGIC))) { 180 1.3.18.2 yamt DPRINTF(("%s: Intel MatrixRAID signature check failed\n", 181 1.3.18.2 yamt device_xname(sc->sc_dev))); 182 1.3.18.2 yamt error = ESRCH; 183 1.3.18.2 yamt goto out; 184 1.3.18.2 yamt } 185 1.3.18.2 yamt 186 1.3.18.2 yamt /* calculate checksum and compare for valid */ 187 1.3.18.2 yamt for (checksum = 0, ptr = (uint32_t *)info, count = 0; 188 1.3.18.2 yamt count < (info->config_size / sizeof(uint32_t)); count++) 189 1.3.18.2 yamt checksum += *ptr++; 190 1.3.18.2 yamt 191 1.3.18.2 yamt checksum -= info->checksum; 192 1.3.18.2 yamt if (checksum != info->checksum) { 193 1.3.18.2 yamt DPRINTF(("%s: Intel MatrixRAID checksum failed 0x%x != 0x%x\n", 194 1.3.18.2 yamt device_xname(sc->sc_dev), checksum, info->checksum)); 195 1.3.18.2 yamt error = ESRCH; 196 1.3.18.2 yamt goto out; 197 1.3.18.2 yamt } 198 1.3.18.2 yamt 199 1.3.18.2 yamt #ifdef ATA_RAID_DEBUG 200 1.3.18.2 yamt ata_raid_intel_print_info(info); 201 1.3.18.2 yamt #endif 202 1.3.18.2 yamt 203 1.3.18.2 yamt /* This one points to the first volume */ 204 1.3.18.2 yamt map = (struct intel_raid_mapping *)&info->disk[info->total_disks]; 205 1.3.18.2 yamt 206 1.3.18.2 yamt findvol: 207 1.3.18.2 yamt /* 208 1.3.18.2 yamt * Lookup or allocate a new array info structure for this array. 209 1.3.18.2 yamt */ 210 1.3.18.2 yamt aai = ata_raid_get_array_info(ATA_RAID_TYPE_INTEL, curvol); 211 1.3.18.2 yamt 212 1.3.18.2 yamt /* Fill in array info */ 213 1.3.18.2 yamt aai->aai_generation = info->generation; 214 1.3.18.2 yamt aai->aai_status = AAI_S_READY; 215 1.3.18.2 yamt 216 1.3.18.2 yamt switch (map->type) { 217 1.3.18.2 yamt case INTEL_T_RAID0: 218 1.3.18.2 yamt aai->aai_level = AAI_L_RAID0; 219 1.3.18.2 yamt aai->aai_width = map->total_disks; 220 1.3.18.2 yamt break; 221 1.3.18.2 yamt case INTEL_T_RAID1: 222 1.3.18.2 yamt aai->aai_level = AAI_L_RAID1; 223 1.3.18.2 yamt aai->aai_width = 1; 224 1.3.18.2 yamt break; 225 1.3.18.2 yamt default: 226 1.3.18.2 yamt DPRINTF(("%s: unknown Intel MatrixRAID type 0x%02x\n", 227 1.3.18.2 yamt sc->sc_dev->dv_xname, map->type)); 228 1.3.18.2 yamt error = EINVAL; 229 1.3.18.2 yamt goto out; 230 1.3.18.2 yamt } 231 1.3.18.2 yamt 232 1.3.18.2 yamt switch (map->state) { 233 1.3.18.2 yamt case INTEL_S_DEGRADED: 234 1.3.18.2 yamt aai->aai_status |= AAI_S_DEGRADED; 235 1.3.18.2 yamt break; 236 1.3.18.2 yamt case INTEL_S_DISABLED: 237 1.3.18.2 yamt case INTEL_S_FAILURE: 238 1.3.18.2 yamt aai->aai_status &= ~AAI_S_READY; 239 1.3.18.2 yamt break; 240 1.3.18.2 yamt } 241 1.3.18.2 yamt 242 1.3.18.2 yamt aai->aai_type = ATA_RAID_TYPE_INTEL; 243 1.3.18.2 yamt aai->aai_capacity = map->total_sectors; 244 1.3.18.2 yamt aai->aai_interleave = map->stripe_sectors / 2; 245 1.3.18.2 yamt aai->aai_ndisks = map->total_disks; 246 1.3.18.2 yamt aai->aai_heads = 255; 247 1.3.18.2 yamt aai->aai_sectors = 63; 248 1.3.18.2 yamt aai->aai_cylinders = 249 1.3.18.2 yamt aai->aai_capacity / (aai->aai_heads * aai->aai_sectors); 250 1.3.18.2 yamt aai->aai_offset = map->offset; 251 1.3.18.2 yamt aai->aai_reserved = 3; 252 1.3.18.2 yamt if (map->name) 253 1.3.18.2 yamt strlcpy(aai->aai_name, map->name, sizeof(aai->aai_name)); 254 1.3.18.2 yamt 255 1.3.18.2 yamt /* Fill in disk info */ 256 1.3.18.2 yamt adi = &aai->aai_disks[curdrive]; 257 1.3.18.2 yamt adi->adi_status = 0; 258 1.3.18.2 yamt 259 1.3.18.2 yamt if (info->disk[curdrive].flags & INTEL_F_ONLINE) 260 1.3.18.2 yamt adi->adi_status |= ADI_S_ONLINE; 261 1.3.18.2 yamt if (info->disk[curdrive].flags & INTEL_F_ASSIGNED) 262 1.3.18.2 yamt adi->adi_status |= ADI_S_ASSIGNED; 263 1.3.18.2 yamt if (info->disk[curdrive].flags & INTEL_F_SPARE) { 264 1.3.18.2 yamt adi->adi_status &= ~ADI_S_ONLINE; 265 1.3.18.2 yamt adi->adi_status |= ADI_S_SPARE; 266 1.3.18.2 yamt } 267 1.3.18.2 yamt if (info->disk[curdrive].flags & INTEL_F_DOWN) 268 1.3.18.2 yamt adi->adi_status &= ~ADI_S_ONLINE; 269 1.3.18.2 yamt 270 1.3.18.2 yamt if (adi->adi_status) { 271 1.3.18.2 yamt adi->adi_dev = sc->sc_dev; 272 1.3.18.2 yamt adi->adi_sectors = info->disk[curdrive].sectors; 273 1.3.18.2 yamt adi->adi_compsize = adi->adi_sectors - aai->aai_reserved; 274 1.3.18.2 yamt /* 275 1.3.18.2 yamt * Check if that is the only volume, otherwise repeat 276 1.3.18.2 yamt * the process to find more. 277 1.3.18.2 yamt */ 278 1.3.18.2 yamt if ((curvol + 1) < info->total_volumes) { 279 1.3.18.2 yamt curvol++; 280 1.3.18.2 yamt map = (struct intel_raid_mapping *) 281 1.3.18.2 yamt &map->disk_idx[map->total_disks]; 282 1.3.18.2 yamt goto findvol; 283 1.3.18.2 yamt } 284 1.3.18.2 yamt curdrive++; 285 1.3.18.2 yamt } 286 1.3.18.2 yamt 287 1.3.18.2 yamt out: 288 1.3.18.2 yamt free(info, M_DEVBUF); 289 1.3.18.2 yamt return error; 290 1.3.18.2 yamt } 291
Indexes created Wed Oct 15 16:09:53 GMT 2025