1 /* $NetBSD: rf_compat80.c,v 1.15 2021/05/26 06:11:50 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 2017 Matthew R. Green 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 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/types.h> 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/module.h> 35 36 #include <sys/compat_stub.h> 37 38 #include <dev/raidframe/raidframeio.h> 39 #include <dev/raidframe/raidframevar.h> 40 41 #include "rf_raid.h" 42 #include "rf_compat80.h" 43 #include "rf_kintf.h" 44 45 /* NetBSD 8.99.x removed the row, raidPtr and next members */ 46 struct rf_recon_req80 { 47 RF_RowCol_t row, col; 48 RF_ReconReqFlags_t flags; 49 void *raidPtr; /* used internally; need not be set at ioctl 50 * time */ 51 struct rf_recon_req *next; /* used internally; need not be set at 52 * ioctl time */ 53 }; 54 55 /* NetBSD 8.99.x made this structure alignment neutral */ 56 typedef struct RF_RaidDisk_s80 { 57 char devname[56]; /* name of device file */ 58 RF_DiskStatus_t status; /* whether it is up or down */ 59 RF_RowCol_t spareRow; /* if in status "spared", this identifies the 60 * spare disk */ 61 RF_RowCol_t spareCol; /* if in status "spared", this identifies the 62 * spare disk */ 63 RF_SectorCount_t numBlocks; /* number of blocks, obtained via READ 64 * CAPACITY */ 65 int blockSize; 66 RF_SectorCount_t partitionSize; /* The *actual* and *full* size of 67 the partition, from the disklabel */ 68 int auto_configured;/* 1 if this component was autoconfigured. 69 0 otherwise. */ 70 dev_t dev; 71 } RF_RaidDisk_t80; 72 73 typedef struct RF_DeviceConfig_s80 { 74 u_int rows; 75 u_int cols; 76 u_int maxqdepth; 77 int ndevs; 78 RF_RaidDisk_t80 devs[RF_MAX_DISKS]; 79 int nspares; 80 RF_RaidDisk_t80 spares[RF_MAX_DISKS]; 81 } RF_DeviceConfig_t80; 82 83 typedef struct RF_Config_s80 { 84 RF_RowCol_t numRow, numCol, numSpare; /* number of rows, columns, 85 * and spare disks */ 86 dev_t devs[RF_MAXROW][RF_MAXCOL]; /* device numbers for disks 87 * comprising array */ 88 char devnames[RF_MAXROW][RF_MAXCOL][50]; /* device names */ 89 dev_t spare_devs[RF_MAXSPARE]; /* device numbers for spare 90 * disks */ 91 char spare_names[RF_MAXSPARE][50]; /* device names */ 92 RF_SectorNum_t sectPerSU; /* sectors per stripe unit */ 93 RF_StripeNum_t SUsPerPU;/* stripe units per parity unit */ 94 RF_StripeNum_t SUsPerRU;/* stripe units per reconstruction unit */ 95 RF_ParityConfig_t parityConfig; /* identifies the RAID architecture to 96 * be used */ 97 RF_DiskQueueType_t diskQueueType; /* 'f' = fifo, 'c' = cvscan, 98 * not used in kernel */ 99 char maxOutstandingDiskReqs; /* # concurrent reqs to be sent to a 100 * disk. not used in kernel. */ 101 char debugVars[RF_MAXDBGV][50]; /* space for specifying debug 102 * variables & their values */ 103 unsigned int layoutSpecificSize; /* size in bytes of 104 * layout-specific info */ 105 void *layoutSpecific; /* a pointer to a layout-specific structure to 106 * be copied in */ 107 int force; /* if !0, ignore many fatal 108 configuration conditions */ 109 /* 110 "force" is used to override cases where the component labels would 111 indicate that configuration should not proceed without user 112 intervention 113 */ 114 } RF_Config_t80; 115 116 static int 117 rf_check_recon_status_ext80(RF_Raid_t *raidPtr, void *data) 118 { 119 RF_ProgressInfo_t info, **infoPtr = data; 120 121 rf_check_recon_status_ext(raidPtr, &info); 122 return copyout(&info, *infoPtr, sizeof(info)); 123 } 124 125 static int 126 rf_check_parityrewrite_status_ext80(RF_Raid_t *raidPtr, void *data) 127 { 128 RF_ProgressInfo_t info, **infoPtr = data; 129 130 rf_check_parityrewrite_status_ext(raidPtr, &info); 131 return copyout(&info, *infoPtr, sizeof(info)); 132 } 133 134 static int 135 rf_check_copyback_status_ext80(RF_Raid_t *raidPtr, void *data) 136 { 137 RF_ProgressInfo_t info, **infoPtr = data; 138 139 rf_check_copyback_status_ext(raidPtr, &info); 140 return copyout(&info, *infoPtr, sizeof(info)); 141 } 142 143 static void 144 rf_copy_raiddisk80(RF_RaidDisk_t *disk, RF_RaidDisk_t80 *disk80) 145 { 146 147 /* Be sure the padding areas don't have kernel memory. */ 148 memset(disk80, 0, sizeof(*disk80)); 149 memcpy(disk80->devname, disk->devname, sizeof(disk80->devname)); 150 disk80->status = disk->status; 151 disk80->spareRow = 0; 152 disk80->spareCol = disk->spareCol; 153 disk80->numBlocks = disk->numBlocks; 154 disk80->blockSize = disk->blockSize; 155 disk80->partitionSize = disk->partitionSize; 156 disk80->auto_configured = disk->auto_configured; 157 disk80->dev = disk->dev; 158 } 159 160 static int 161 rf_get_info80(RF_Raid_t *raidPtr, void *data) 162 { 163 RF_DeviceConfig_t *config; 164 RF_DeviceConfig_t80 *config80, **configPtr80 = data; 165 int rv; 166 167 config = RF_Malloc(sizeof(*config)); 168 if (config == NULL) 169 return ENOMEM; 170 config80 = RF_Malloc(sizeof(*config80)); 171 if (config80 == NULL) { 172 RF_Free(config, sizeof(*config)); 173 return ENOMEM; 174 } 175 rv = rf_get_info(raidPtr, config); 176 if (rv == 0) { 177 /* convert new to old */ 178 config80->rows = 1; 179 config80->cols = config->cols; 180 config80->maxqdepth = config->maxqdepth; 181 config80->ndevs = config->ndevs; 182 config80->nspares = config->nspares; 183 for (size_t i = 0; i < RF_MAX_DISKS; i++) { 184 rf_copy_raiddisk80(&config->devs[i], 185 &config80->devs[i]); 186 rf_copy_raiddisk80(&config->spares[i], 187 &config80->spares[i]); 188 } 189 rv = copyout(config80, *configPtr80, sizeof(*config80)); 190 } 191 RF_Free(config, sizeof(*config)); 192 RF_Free(config80, sizeof(*config80)); 193 194 return rv; 195 } 196 197 static int 198 rf_get_component_label80(RF_Raid_t *raidPtr, void *data) 199 { 200 RF_ComponentLabel_t **clabel_ptr = (RF_ComponentLabel_t **)data; 201 RF_ComponentLabel_t *clabel; 202 int retcode; 203 204 /* 205 * Perhaps there should be an option to skip the in-core 206 * copy and hit the disk, as with disklabel(8). 207 */ 208 clabel = RF_Malloc(sizeof(*clabel)); 209 if (clabel == NULL) 210 return ENOMEM; 211 retcode = copyin(*clabel_ptr, clabel, sizeof(*clabel)); 212 if (retcode) { 213 RF_Free(clabel, sizeof(*clabel)); 214 return retcode; 215 } 216 217 rf_get_component_label(raidPtr, clabel); 218 /* Fix-up for userland. */ 219 if (clabel->version == bswap32(RF_COMPONENT_LABEL_VERSION)) 220 clabel->version = RF_COMPONENT_LABEL_VERSION; 221 222 retcode = copyout(clabel, *clabel_ptr, sizeof(**clabel_ptr)); 223 RF_Free(clabel, sizeof(*clabel)); 224 225 return retcode; 226 } 227 228 static int 229 rf_config80(struct raid_softc *rs, void *data) 230 { 231 RF_Config_t80 *u80_cfg, *k80_cfg; 232 RF_Config_t *k_cfg; 233 RF_Raid_t *raidPtr = rf_get_raid(rs); 234 size_t i, j; 235 int error; 236 237 if (raidPtr->valid) { 238 /* There is a valid RAID set running on this unit! */ 239 printf("raid%d: Device already configured!\n", rf_get_unit(rs)); 240 return EINVAL; 241 } 242 243 /* copy-in the configuration information */ 244 /* data points to a pointer to the configuration structure */ 245 246 u80_cfg = *((RF_Config_t80 **) data); 247 k80_cfg = RF_Malloc(sizeof(*k80_cfg)); 248 if (k80_cfg == NULL) 249 return ENOMEM; 250 251 error = copyin(u80_cfg, k80_cfg, sizeof(*k80_cfg)); 252 if (error) { 253 RF_Free(k80_cfg, sizeof(*k80_cfg)); 254 return error; 255 } 256 k_cfg = RF_Malloc(sizeof(*k_cfg)); 257 if (k_cfg == NULL) { 258 RF_Free(k80_cfg, sizeof(*k80_cfg)); 259 return ENOMEM; 260 } 261 262 k_cfg->numCol = k80_cfg->numCol; 263 k_cfg->numSpare = k80_cfg->numSpare; 264 265 for (i = 0; i < RF_MAXROW; i++) 266 for (j = 0; j < RF_MAXCOL; j++) 267 k_cfg->devs[i][j] = k80_cfg->devs[i][j]; 268 269 memcpy(k_cfg->devnames, k80_cfg->devnames, 270 sizeof(k_cfg->devnames)); 271 272 for (i = 0; i < RF_MAXSPARE; i++) 273 k_cfg->spare_devs[i] = k80_cfg->spare_devs[i]; 274 275 memcpy(k_cfg->spare_names, k80_cfg->spare_names, 276 sizeof(k_cfg->spare_names)); 277 278 k_cfg->sectPerSU = k80_cfg->sectPerSU; 279 k_cfg->SUsPerPU = k80_cfg->SUsPerPU; 280 k_cfg->SUsPerRU = k80_cfg->SUsPerRU; 281 k_cfg->parityConfig = k80_cfg->parityConfig; 282 283 memcpy(k_cfg->diskQueueType, k80_cfg->diskQueueType, 284 sizeof(k_cfg->diskQueueType)); 285 286 k_cfg->maxOutstandingDiskReqs = k80_cfg->maxOutstandingDiskReqs; 287 288 memcpy(k_cfg->debugVars, k80_cfg->debugVars, 289 sizeof(k_cfg->debugVars)); 290 291 k_cfg->layoutSpecificSize = k80_cfg->layoutSpecificSize; 292 k_cfg->layoutSpecific = k80_cfg->layoutSpecific; 293 k_cfg->force = k80_cfg->force; 294 295 RF_Free(k80_cfg, sizeof(*k80_cfg)); 296 return rf_construct(rs, k_cfg); 297 } 298 299 static int 300 rf_fail_disk80(RF_Raid_t *raidPtr, struct rf_recon_req80 *req80) 301 { 302 struct rf_recon_req req = { 303 .col = req80->col, 304 .flags = req80->flags, 305 }; 306 return rf_fail_disk(raidPtr, &req); 307 } 308 309 static int 310 raidframe_ioctl_80(struct raid_softc *rs, u_long cmd, void *data) 311 { 312 RF_Raid_t *raidPtr = rf_get_raid(rs); 313 314 switch (cmd) { 315 case RAIDFRAME_CHECK_RECON_STATUS_EXT80: 316 case RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT80: 317 case RAIDFRAME_CHECK_COPYBACK_STATUS_EXT80: 318 case RAIDFRAME_GET_INFO80: 319 case RAIDFRAME_GET_COMPONENT_LABEL80: 320 if (!rf_inited(rs)) 321 return ENXIO; 322 break; 323 case RAIDFRAME_CONFIGURE80: 324 case RAIDFRAME_FAIL_DISK80: 325 break; 326 default: 327 return EPASSTHROUGH; 328 } 329 330 switch (cmd) { 331 case RAIDFRAME_CHECK_RECON_STATUS_EXT80: 332 return rf_check_recon_status_ext80(raidPtr, data); 333 case RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT80: 334 return rf_check_parityrewrite_status_ext80(raidPtr, data); 335 case RAIDFRAME_CHECK_COPYBACK_STATUS_EXT80: 336 return rf_check_copyback_status_ext80(raidPtr, data); 337 case RAIDFRAME_GET_INFO80: 338 return rf_get_info80(raidPtr, data); 339 case RAIDFRAME_GET_COMPONENT_LABEL80: 340 return rf_get_component_label80(raidPtr, data); 341 case RAIDFRAME_CONFIGURE80: 342 return rf_config80(rs, data); 343 case RAIDFRAME_FAIL_DISK80: 344 return rf_fail_disk80(raidPtr, data); 345 default: 346 /* abort really */ 347 return EPASSTHROUGH; 348 } 349 } 350 351 static void 352 raidframe_80_init(void) 353 { 354 355 MODULE_HOOK_SET(raidframe_ioctl_80_hook, raidframe_ioctl_80); 356 } 357 358 static void 359 raidframe_80_fini(void) 360 { 361 362 MODULE_HOOK_UNSET(raidframe_ioctl_80_hook); 363 } 364 365 MODULE(MODULE_CLASS_EXEC, compat_raid_80, "raid,compat_80"); 366 367 static int 368 compat_raid_80_modcmd(modcmd_t cmd, void *arg) 369 { 370 371 switch (cmd) { 372 case MODULE_CMD_INIT: 373 raidframe_80_init(); 374 return 0; 375 case MODULE_CMD_FINI: 376 raidframe_80_fini(); 377 return 0; 378 default: 379 return ENOTTY; 380 } 381 } 382