1 /* $NetBSD: raidframevar.h,v 1.23 2021/08/07 16:19:15 thorpej Exp $ */ 2 /*- 3 * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Greg Oster 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 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 /* 31 * Copyright (c) 1995 Carnegie-Mellon University. 32 * All rights reserved. 33 * 34 * Author: Mark Holland 35 * 36 * Permission to use, copy, modify and distribute this software and 37 * its documentation is hereby granted, provided that both the copyright 38 * notice and this permission notice appear in all copies of the 39 * software, derivative works or modified versions, and any portions 40 * thereof, and that both notices appear in supporting documentation. 41 * 42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 44 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 45 * 46 * Carnegie Mellon requests users of this software to return to 47 * 48 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 49 * School of Computer Science 50 * Carnegie Mellon University 51 * Pittsburgh PA 15213-3890 52 * 53 * any improvements or extensions that they make and grant Carnegie the 54 * rights to redistribute these changes. 55 */ 56 57 /* 58 * Copyright (c) 1995 Carnegie-Mellon University. 59 * All rights reserved. 60 * 61 * Author: Jim Zelenka 62 * 63 * Permission to use, copy, modify and distribute this software and 64 * its documentation is hereby granted, provided that both the copyright 65 * notice and this permission notice appear in all copies of the 66 * software, derivative works or modified versions, and any portions 67 * thereof, and that both notices appear in supporting documentation. 68 * 69 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 70 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 71 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 72 * 73 * Carnegie Mellon requests users of this software to return to 74 * 75 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 76 * School of Computer Science 77 * Carnegie Mellon University 78 * Pittsburgh PA 15213-3890 79 * 80 * any improvements or extensions that they make and grant Carnegie the 81 * rights to redistribute these changes. 82 */ 83 84 /***************************************************** 85 * 86 * raidframevar.h 87 * 88 * main header file for using raidframe in the kernel. 89 * 90 *****************************************************/ 91 92 93 #ifndef _RF_RAIDFRAMEVAR_H_ 94 #define _RF_RAIDFRAMEVAR_H_ 95 96 #ifndef _STANDALONE 97 #include <sys/ioctl.h> 98 99 #include <sys/errno.h> 100 #include <sys/types.h> 101 102 #include <sys/uio.h> 103 #include <sys/param.h> 104 #include <sys/proc.h> 105 106 #include <sys/mallocvar.h> 107 #endif 108 109 /* 110 * First, define system-dependent types and constants. 111 * 112 * If the machine is big-endian, RF_BIG_ENDIAN should be 1. 113 * Otherwise, it should be 0. 114 * 115 * The various integer types should be self-explanatory; we 116 * use these elsewhere to avoid size confusion. 117 * 118 * LONGSHIFT is lg(sizeof(long)) (that is, log base two of sizeof(long) 119 * 120 */ 121 122 #include <sys/types.h> 123 #include <machine/endian.h> 124 #include <machine/limits.h> 125 126 #if BYTE_ORDER == BIG_ENDIAN 127 #define RF_IS_BIG_ENDIAN 1 128 #elif BYTE_ORDER == LITTLE_ENDIAN 129 #define RF_IS_BIG_ENDIAN 0 130 #else 131 #error byte order not defined 132 #endif 133 typedef int8_t RF_int8; 134 typedef u_int8_t RF_uint8; 135 typedef int16_t RF_int16; 136 typedef u_int16_t RF_uint16; 137 typedef int32_t RF_int32; 138 typedef u_int32_t RF_uint32; 139 typedef int64_t RF_int64; 140 typedef u_int64_t RF_uint64; 141 #if LONG_BIT == 32 142 #define RF_LONGSHIFT 2 143 #elif LONG_BIT == 64 144 #define RF_LONGSHIFT 3 145 #else 146 #error word size not defined 147 #endif 148 149 /* 150 * These are just zero and non-zero. We don't use "TRUE" 151 * and "FALSE" because there's too much nonsense trying 152 * to get them defined exactly once on every platform, given 153 * the different places they may be defined in system header 154 * files. 155 */ 156 #define RF_TRUE 1 157 #define RF_FALSE 0 158 159 /* Malloc types. */ 160 #ifdef _KERNEL 161 MALLOC_DECLARE(M_RAIDFRAME); 162 #endif 163 164 /* 165 * Now, some generic types 166 */ 167 typedef RF_uint64 RF_IoCount_t; 168 typedef RF_uint64 RF_Offset_t; 169 typedef RF_uint32 RF_PSSFlags_t; 170 typedef RF_uint64 RF_SectorCount_t; 171 typedef RF_uint64 RF_StripeCount_t; 172 typedef RF_int64 RF_SectorNum_t;/* these are unsigned so we can set them to 173 * (-1) for "uninitialized" */ 174 typedef RF_int64 RF_StripeNum_t; 175 typedef RF_int64 RF_RaidAddr_t; 176 typedef int RF_RowCol_t; /* unsigned so it can be (-1) */ 177 typedef RF_int64 RF_HeadSepLimit_t; 178 typedef RF_int64 RF_ReconUnitCount_t; 179 typedef int RF_ReconUnitNum_t; 180 181 typedef char RF_ParityConfig_t; 182 183 typedef char RF_DiskQueueType_t[1024]; 184 #define RF_DISK_QUEUE_TYPE_NONE "" 185 186 /* values for the 'type' field in a reconstruction buffer */ 187 typedef int RF_RbufType_t; 188 #define RF_RBUF_TYPE_EXCLUSIVE 0 /* this buf assigned exclusively to 189 * one disk */ 190 #define RF_RBUF_TYPE_FLOATING 1 /* this is a floating recon buf */ 191 #define RF_RBUF_TYPE_FORCED 2 /* this rbuf was allocated to complete 192 * a forced recon */ 193 194 typedef char RF_IoType_t; 195 #define RF_IO_TYPE_READ 'r' 196 #define RF_IO_TYPE_WRITE 'w' 197 #define RF_IO_TYPE_NOP 'n' 198 #define RF_IO_IS_R_OR_W(_type_) (((_type_) == RF_IO_TYPE_READ) \ 199 || ((_type_) == RF_IO_TYPE_WRITE)) 200 201 typedef void (*RF_VoidFuncPtr) (void *,...); 202 203 typedef RF_uint32 RF_AccessStripeMapFlags_t; 204 typedef RF_uint32 RF_DiskQueueDataFlags_t; 205 typedef RF_uint32 RF_DiskQueueFlags_t; 206 typedef RF_uint32 RF_RaidAccessFlags_t; 207 208 #define RF_DISKQUEUE_DATA_FLAGS_NONE ((RF_DiskQueueDataFlags_t)0) 209 210 typedef struct RF_AccessStripeMap_s RF_AccessStripeMap_t; 211 typedef struct RF_AccessStripeMapHeader_s RF_AccessStripeMapHeader_t; 212 typedef struct RF_AllocListElem_s RF_AllocListElem_t; 213 typedef struct RF_CallbackFuncDesc_s RF_CallbackFuncDesc_t; 214 typedef struct RF_CallbackValueDesc_s RF_CallbackValueDesc_t; 215 typedef struct RF_ChunkDesc_s RF_ChunkDesc_t; 216 typedef struct RF_CommonLogData_s RF_CommonLogData_t; 217 typedef struct RF_Config_s RF_Config_t; 218 typedef struct RF_CumulativeStats_s RF_CumulativeStats_t; 219 typedef struct RF_DagHeader_s RF_DagHeader_t; 220 typedef struct RF_DagList_s RF_DagList_t; 221 typedef struct RF_DagNode_s RF_DagNode_t; 222 typedef struct RF_DeclusteredConfigInfo_s RF_DeclusteredConfigInfo_t; 223 typedef struct RF_DiskId_s RF_DiskId_t; 224 typedef struct RF_DiskMap_s RF_DiskMap_t; 225 typedef struct RF_DiskQueue_s RF_DiskQueue_t; 226 typedef struct RF_DiskQueueData_s RF_DiskQueueData_t; 227 typedef struct RF_DiskQueueSW_s RF_DiskQueueSW_t; 228 typedef struct RF_Etimer_s RF_Etimer_t; 229 typedef struct RF_EventCreate_s RF_EventCreate_t; 230 typedef struct RF_FreeList_s RF_FreeList_t; 231 typedef struct RF_LockReqDesc_s RF_LockReqDesc_t; 232 typedef struct RF_LockTableEntry_s RF_LockTableEntry_t; 233 typedef struct RF_MCPair_s RF_MCPair_t; 234 typedef struct RF_OwnerInfo_s RF_OwnerInfo_t; 235 typedef struct RF_ParityLog_s RF_ParityLog_t; 236 typedef struct RF_ParityLogAppendQueue_s RF_ParityLogAppendQueue_t; 237 typedef struct RF_ParityLogData_s RF_ParityLogData_t; 238 typedef struct RF_ParityLogDiskQueue_s RF_ParityLogDiskQueue_t; 239 typedef struct RF_ParityLogQueue_s RF_ParityLogQueue_t; 240 typedef struct RF_ParityLogRecord_s RF_ParityLogRecord_t; 241 typedef struct RF_PerDiskReconCtrl_s RF_PerDiskReconCtrl_t; 242 typedef struct RF_PSStatusHeader_s RF_PSStatusHeader_t; 243 typedef struct RF_PhysDiskAddr_s RF_PhysDiskAddr_t; 244 typedef struct RF_PropHeader_s RF_PropHeader_t; 245 typedef struct RF_Raid_s RF_Raid_t; 246 typedef struct RF_RaidAccessDesc_s RF_RaidAccessDesc_t; 247 typedef struct RF_RaidDisk_s RF_RaidDisk_t; 248 typedef struct RF_RaidLayout_s RF_RaidLayout_t; 249 typedef struct RF_RaidReconDesc_s RF_RaidReconDesc_t; 250 typedef struct RF_ReconBuffer_s RF_ReconBuffer_t; 251 typedef struct RF_ReconConfig_s RF_ReconConfig_t; 252 typedef struct RF_ReconCtrl_s RF_ReconCtrl_t; 253 typedef struct RF_ReconDoneProc_s RF_ReconDoneProc_t; 254 typedef struct RF_ReconEvent_s RF_ReconEvent_t; 255 typedef struct RF_ReconMap_s RF_ReconMap_t; 256 typedef struct RF_ReconMapListElem_s RF_ReconMapListElem_t; 257 typedef struct RF_ReconParityStripeStatus_s RF_ReconParityStripeStatus_t; 258 typedef struct RF_RedFuncs_s RF_RedFuncs_t; 259 typedef struct RF_RegionBufferQueue_s RF_RegionBufferQueue_t; 260 typedef struct RF_RegionInfo_s RF_RegionInfo_t; 261 typedef struct RF_ShutdownList_s RF_ShutdownList_t; 262 typedef struct RF_SpareTableEntry_s RF_SpareTableEntry_t; 263 typedef struct RF_SparetWait_s RF_SparetWait_t; 264 typedef struct RF_StripeLockDesc_s RF_StripeLockDesc_t; 265 typedef struct RF_ThreadGroup_s RF_ThreadGroup_t; 266 typedef struct RF_ThroughputStats_s RF_ThroughputStats_t; 267 268 struct rf_paritymap; 269 struct rf_paritymap_ondisk; 270 271 /* 272 * Important assumptions regarding ordering of the states in this list 273 * have been made!!! Before disturbing this ordering, look at code in 274 * sys/dev/raidframe/rf_states.c 275 */ 276 typedef enum RF_AccessState_e { 277 /* original states */ 278 rf_QuiesceState, /* handles queisence for reconstruction */ 279 rf_IncrAccessesCountState, /* count accesses in flight */ 280 rf_MapState, /* map access to disk addresses */ 281 rf_LockState, /* take stripe locks */ 282 rf_CreateDAGState, /* create DAGs */ 283 rf_ExecuteDAGState, /* execute DAGs */ 284 rf_ProcessDAGState, /* DAGs are completing- check if correct, 285 * or if we need to retry */ 286 rf_CleanupState, /* release stripe locks, clean up */ 287 rf_DecrAccessesCountState, 288 rf_LastState /* must be the last state */ 289 } RF_AccessState_t; 290 291 292 /* Some constants related to RAIDframe. These are arbitrary and 293 can be modified at will. */ 294 295 #define RF_MAXROW 10 296 #define RF_MAXCOL 40 297 #define RF_MAXSPARE 10 298 #define RF_MAXDBGV 75 /* max number of debug variables */ 299 #define RF_MAX_DISKS 128 /* max disks per array */ 300 #define RF_SPAREMAP_NAME_LEN 128 301 #define RF_PROTECTED_SECTORS 64L /* # of sectors at start of disk to 302 exclude from RAID address space */ 303 304 struct RF_SpareTableEntry_s { 305 u_int spareDisk; /* disk to which this block is spared */ 306 u_int spareBlockOffsetInSUs; /* offset into spare table for that 307 * disk */ 308 }; 309 310 union RF_GenericParam_u { 311 void *p; 312 RF_uint64 v; 313 }; 314 typedef union RF_GenericParam_u RF_DagParam_t; 315 typedef union RF_GenericParam_u RF_CBParam_t; 316 317 /* the raidframe configuration, passed down through an ioctl. 318 * the driver can be reconfigured (with total loss of data) at any time, 319 * but it must be shut down first. 320 */ 321 struct RF_Config_s { 322 RF_RowCol_t numCol, numSpare; /* number of columns, 323 * and spare disks */ 324 dev_t devs[RF_MAXROW][RF_MAXCOL]; /* device numbers for disks 325 * comprising array */ 326 char devnames[RF_MAXROW][RF_MAXCOL][50]; /* device names */ 327 dev_t spare_devs[RF_MAXSPARE]; /* device numbers for spare 328 * disks */ 329 char spare_names[RF_MAXSPARE][50]; /* device names */ 330 RF_SectorNum_t sectPerSU; /* sectors per stripe unit */ 331 RF_StripeNum_t SUsPerPU;/* stripe units per parity unit */ 332 RF_StripeNum_t SUsPerRU;/* stripe units per reconstruction unit */ 333 RF_ParityConfig_t parityConfig; /* identifies the RAID architecture to 334 * be used */ 335 RF_DiskQueueType_t diskQueueType; /* 'f' = fifo, 'c' = cvscan, 336 * not used in kernel */ 337 char maxOutstandingDiskReqs; /* # concurrent reqs to be sent to a 338 * disk. not used in kernel. */ 339 char debugVars[RF_MAXDBGV][50]; /* space for specifying debug 340 * variables & their values */ 341 unsigned int layoutSpecificSize; /* size in bytes of 342 * layout-specific info */ 343 void *layoutSpecific; /* a pointer to a layout-specific structure to 344 * be copied in */ 345 int force; /* if !0, ignore many fatal 346 configuration conditions */ 347 /* 348 "force" is used to override cases where the component labels would 349 indicate that configuration should not proceed without user 350 intervention 351 */ 352 }; 353 354 typedef RF_uint32 RF_ReconReqFlags_t; 355 /* flags that can be put in the rf_recon_req structure */ 356 #define RF_FDFLAGS_NONE 0x0 /* just fail the disk */ 357 #define RF_FDFLAGS_RECON 0x1 /* fail and initiate recon */ 358 #define RF_FDFLAGS_RECON_FORCE 0x2 /* fail and initiate recon, ignoring errors */ 359 360 struct rf_recon_req { /* used to tell the kernel to fail a disk */ 361 RF_RowCol_t col; 362 RF_ReconReqFlags_t flags; 363 }; 364 365 struct RF_SparetWait_s { 366 int C, G, fcol; /* C = # disks in row, G = # units in stripe, 367 * fcol = which disk has failed */ 368 369 RF_StripeCount_t SUsPerPU; /* this stuff is the info required to 370 * create a spare table */ 371 int TablesPerSpareRegion; 372 int BlocksPerTable; 373 RF_StripeCount_t TableDepthInPUs; 374 RF_StripeCount_t SpareSpaceDepthPerRegionInSUs; 375 376 RF_SparetWait_t *next; /* used internally; need not be set at ioctl 377 * time */ 378 }; 379 /* 380 * A physical disk can be in one of several states: 381 * IF YOU ADD A STATE, CHECK TO SEE IF YOU NEED TO MODIFY RF_DEAD_DISK(). 382 */ 383 enum RF_DiskStatus_e { 384 rf_ds_optimal, /* no problems */ 385 rf_ds_failed, /* disk has failed */ 386 rf_ds_reconstructing, /* reconstruction ongoing */ 387 rf_ds_dist_spared, /* reconstruction complete to distributed 388 * spare space, dead disk not yet replaced */ 389 rf_ds_spared, /* reconstruction complete, dead disk not 390 yet replaced */ 391 rf_ds_spare, /* an available spare disk */ 392 rf_ds_used_spare, /* a spare which has been used, and hence is 393 * not available */ 394 rf_ds_rebuilding_spare /* a spare which is being rebuilt to */ 395 }; 396 typedef enum RF_DiskStatus_e RF_DiskStatus_t; 397 398 struct RF_RaidDisk_s { 399 char devname[56]; /* name of device file */ 400 RF_DiskStatus_t status; /* whether it is up or down */ 401 RF_RowCol_t spareCol; /* if in status "spared", this identifies the 402 * spare disk */ 403 int blockSize; 404 int auto_configured;/* 1 if this component was autoconfigured. 405 0 otherwise. */ 406 RF_SectorCount_t numBlocks; /* number of blocks, obtained via READ 407 * CAPACITY */ 408 RF_SectorCount_t partitionSize; /* The *actual* and *full* size of 409 the partition, from the disklabel */ 410 dev_t dev; 411 }; 412 #if 0 413 /* The per-component label information that the user can set */ 414 typedef struct RF_ComponentInfo_s { 415 int row; /* the row number of this component */ 416 int column; /* the column number of this component */ 417 int serial_number; /* a user-specified serial number for this 418 RAID set */ 419 } RF_ComponentInfo_t; 420 #endif 421 422 /* The per-component label information */ 423 typedef struct RF_ComponentLabel_s { 424 int version; /* The version of this label. */ 425 int serial_number; /* a user-specified serial number for this 426 RAID set */ 427 int mod_counter; /* modification counter. Changed (usually 428 by incrementing) every time the label 429 is changed */ 430 int row; /* the row number of this component */ 431 int column; /* the column number of this component */ 432 int num_rows; /* number of rows in this RAID set */ 433 int num_columns; /* number of columns in this RAID set */ 434 int clean; /* 1 when clean, 0 when dirty */ 435 int status; /* rf_ds_optimal, rf_ds_dist_spared, whatever. */ 436 /* stuff that will be in version 2 of the label */ 437 int sectPerSU; /* Sectors per Stripe Unit */ 438 int SUsPerPU; /* Stripe Units per Parity Units */ 439 int SUsPerRU; /* Stripe Units per Reconstruction Units */ 440 int parityConfig; /* '0' == RAID0, '1' == RAID1, etc. */ 441 int maxOutstanding; /* maxOutstanding disk requests */ 442 int blockSize; /* size of component block. 443 (disklabel->d_secsize) */ 444 u_int __numBlocks; /* number of blocks on this component. May 445 be smaller than the partition size. */ 446 u_int __partitionSize;/* number of blocks on this *partition*. 447 Must exactly match the partition size 448 from the disklabel. */ 449 /* Parity map stuff. */ 450 int parity_map_modcount; /* If equal to mod_counter, then the last 451 kernel to touch this label was 452 parity-map-enabled. */ 453 u_int parity_map_flags; /* See top of rf_paritymap.h */ 454 int parity_map_tickms; /* Length of parity map cooldown ticks. */ 455 int parity_map_ntick; /* Number of parity map cooldown ticks. */ 456 u_int parity_map_regions; /* Number of parity map regions. */ 457 int future_use[28]; /* Future expansion */ 458 459 int autoconfigure; /* automatically configure this RAID set. 460 0 == no, 1 == yes */ 461 int root_partition; /* Use this set as / 462 0 == no, 1 == yes*/ 463 int last_unit; /* last unit number (e.g. 0 for /dev/raid0) 464 of this component. Used for autoconfigure 465 only. */ 466 int config_order; /* 0 .. n. The order in which the component 467 should be auto-configured. E.g. 0 is will 468 done first, (and would become raid0). 469 This may be in conflict with last_unit!!?! */ 470 /* Not currently used. */ 471 u_int numBlocksHi; /* The top 32-bits of the numBlocks member. */ 472 u_int partitionSizeHi;/* The top 32-bits of the partitionSize member. */ 473 int future_use2[42]; /* More future expansion */ 474 } RF_ComponentLabel_t; 475 476 /* 477 * Following four functions are access macros for the number of blocks 478 * and partition size in component label. 479 */ 480 static __inline RF_SectorCount_t 481 rf_component_label_numblocks(const RF_ComponentLabel_t *cl) 482 { 483 484 return ((RF_SectorCount_t)cl->numBlocksHi << 32) | 485 cl->__numBlocks; 486 } 487 488 static __inline void 489 rf_component_label_set_numblocks(RF_ComponentLabel_t *cl, RF_SectorCount_t siz) 490 { 491 492 cl->numBlocksHi = siz >> 32; 493 cl->__numBlocks = siz; 494 } 495 496 static __inline RF_SectorCount_t 497 rf_component_label_partitionsize(const RF_ComponentLabel_t *cl) 498 { 499 500 return ((RF_SectorCount_t)cl->partitionSizeHi << 32) | 501 cl->__partitionSize; 502 } 503 504 static __inline void 505 rf_component_label_set_partitionsize(RF_ComponentLabel_t *cl, 506 RF_SectorCount_t siz) 507 { 508 509 cl->partitionSizeHi = siz >> 32; 510 cl->__partitionSize = siz; 511 } 512 513 typedef struct RF_SingleComponent_s { 514 int row; /* obsolete */ 515 int column; 516 char component_name[50]; /* name of the component */ 517 } RF_SingleComponent_t; 518 519 typedef struct RF_DeviceConfig_s { 520 u_int cols; 521 u_int maxqdepth; 522 int ndevs; 523 RF_RaidDisk_t devs[RF_MAX_DISKS]; 524 u_int nspares; 525 RF_RaidDisk_t spares[RF_MAX_DISKS]; 526 } RF_DeviceConfig_t; 527 528 typedef struct RF_ProgressInfo_s { 529 RF_uint64 remaining; 530 RF_uint64 completed; 531 RF_uint64 total; 532 } RF_ProgressInfo_t; 533 534 #ifndef _STANDALONE 535 typedef struct RF_LayoutSW_s { 536 RF_ParityConfig_t parityConfig; 537 const char *configName; 538 539 #ifndef _KERNEL 540 /* layout-specific parsing */ 541 int (*MakeLayoutSpecific) (FILE * fp, RF_Config_t * cfgPtr, 542 void *arg); 543 void *makeLayoutSpecificArg; 544 #else /* !KERNEL */ 545 546 /* initialization routine */ 547 int (*Configure) (RF_ShutdownList_t ** shutdownListp, 548 RF_Raid_t * raidPtr, RF_Config_t * cfgPtr); 549 550 /* routine to map RAID sector address -> physical (col, offset) */ 551 void (*MapSector) (RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector, 552 RF_RowCol_t * col, 553 RF_SectorNum_t * diskSector, int remap); 554 555 /* routine to map RAID sector address -> physical (c,o) of parity 556 * unit */ 557 void (*MapParity) (RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector, 558 RF_RowCol_t * col, 559 RF_SectorNum_t * diskSector, int remap); 560 561 /* routine to map RAID sector address -> physical (c,o) of Q unit */ 562 void (*MapQ) (RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector, 563 RF_RowCol_t * col, 564 RF_SectorNum_t * diskSector, int remap); 565 566 /* routine to identify the disks comprising a stripe */ 567 void (*IdentifyStripe) (RF_Raid_t * raidPtr, RF_RaidAddr_t addr, 568 RF_RowCol_t ** diskids); 569 570 /* routine to select a dag */ 571 void (*SelectionFunc) (RF_Raid_t * raidPtr, RF_IoType_t type, 572 RF_AccessStripeMap_t * asmap, 573 RF_VoidFuncPtr *); 574 575 /* map a stripe ID to a parity stripe ID. This is typically the 576 * identity mapping */ 577 void (*MapSIDToPSID) (RF_RaidLayout_t * layoutPtr, 578 RF_StripeNum_t stripeID, 579 RF_StripeNum_t * psID, 580 RF_ReconUnitNum_t * which_ru); 581 582 /* get default head separation limit (may be NULL) */ 583 RF_HeadSepLimit_t(*GetDefaultHeadSepLimit) (RF_Raid_t * raidPtr); 584 585 /* get default num recon buffers (may be NULL) */ 586 int (*GetDefaultNumFloatingReconBuffers) (RF_Raid_t * raidPtr); 587 588 /* get number of spare recon units (may be NULL) */ 589 RF_ReconUnitCount_t(*GetNumSpareRUs) (RF_Raid_t * raidPtr); 590 591 /* spare table installation (may be NULL) */ 592 int (*InstallSpareTable) (RF_Raid_t * raidPtr, RF_RowCol_t fcol); 593 594 /* recon buffer submission function */ 595 int (*SubmitReconBuffer) (RF_ReconBuffer_t * rbuf, int keep_it, 596 int use_committed); 597 598 /* 599 * verify that parity information for a stripe is correct 600 * see rf_parityscan.h for return vals 601 */ 602 int (*VerifyParity) (RF_Raid_t * raidPtr, RF_RaidAddr_t raidAddr, 603 RF_PhysDiskAddr_t * parityPDA, 604 int correct_it, RF_RaidAccessFlags_t flags); 605 606 /* number of faults tolerated by this mapping */ 607 int faultsTolerated; 608 609 /* states to step through in an access. Must end with "LastState". The 610 * default is DefaultStates in rf_layout.c */ 611 const RF_AccessState_t *states; 612 613 RF_AccessStripeMapFlags_t flags; 614 #endif /* !KERNEL */ 615 } RF_LayoutSW_t; 616 #endif 617 618 619 /* Parity map declarations. */ 620 #define RF_PARITYMAP_NREG 4096 621 #define RF_PARITYMAP_NBYTE howmany(RF_PARITYMAP_NREG, NBBY) 622 623 struct rf_pmctrs { 624 uint64_t nwrite, ncachesync, nclearing; 625 }; 626 627 struct rf_pmparams { 628 int cooldown, tickms; 629 u_int regions; 630 }; 631 632 struct rf_pmstat { 633 int enabled; /* if not set, rest of struct is zeroed */ 634 struct rf_pmparams params; 635 daddr_t region_size; 636 char dirty[RF_PARITYMAP_NBYTE]; 637 struct rf_pmctrs ctrs; 638 }; 639 640 641 642 #endif /* !_RF_RAIDFRAMEVAR_H_ */ 643
Indexes created Sun Sep 21 20:09:37 GMT 2025