Annotation of sys/dev/raidframe/rf_types.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: rf_types.h,v 1.6 2002/12/16 07:01:05 tdeval Exp $ */
! 2: /* $NetBSD: rf_types.h,v 1.6 1999/09/05 03:05:55 oster Exp $ */
! 3:
! 4: /*
! 5: * rf_types.h
! 6: */
! 7: /*
! 8: * Copyright (c) 1995 Carnegie-Mellon University.
! 9: * All rights reserved.
! 10: *
! 11: * Author: Jim Zelenka
! 12: *
! 13: * Permission to use, copy, modify and distribute this software and
! 14: * its documentation is hereby granted, provided that both the copyright
! 15: * notice and this permission notice appear in all copies of the
! 16: * software, derivative works or modified versions, and any portions
! 17: * thereof, and that both notices appear in supporting documentation.
! 18: *
! 19: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
! 20: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
! 21: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
! 22: *
! 23: * Carnegie Mellon requests users of this software to return to
! 24: *
! 25: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
! 26: * School of Computer Science
! 27: * Carnegie Mellon University
! 28: * Pittsburgh PA 15213-3890
! 29: *
! 30: * any improvements or extensions that they make and grant Carnegie the
! 31: * rights to redistribute these changes.
! 32: */
! 33: /***********************************************************
! 34: *
! 35: * rf_types.h -- Standard types for RAIDframe.
! 36: *
! 37: ***********************************************************/
! 38:
! 39: #ifndef _RF__RF_TYPES_H_
! 40: #define _RF__RF_TYPES_H_
! 41:
! 42:
! 43: #include "rf_archs.h"
! 44:
! 45: #include <sys/errno.h>
! 46: #include <sys/types.h>
! 47:
! 48: #include <sys/uio.h>
! 49: #include <sys/param.h>
! 50: #include <sys/lock.h>
! 51:
! 52: /*
! 53: * First, define system-dependent types and constants.
! 54: *
! 55: * If the machine is big-endian, RF_BIG_ENDIAN should be 1.
! 56: * Otherwise, it should be 0.
! 57: *
! 58: * The various integer types should be self-explanatory; we
! 59: * use these elsewhere to avoid size confusion.
! 60: *
! 61: * LONGSHIFT is lg(sizeof(long)) (that is, log base two of sizeof(long))
! 62: *
! 63: */
! 64:
! 65: #include <sys/types.h>
! 66: #include <sys/limits.h>
! 67: #include <machine/endian.h>
! 68:
! 69: #if BYTE_ORDER == BIG_ENDIAN
! 70: #define RF_IS_BIG_ENDIAN 1
! 71: #elif BYTE_ORDER == LITTLE_ENDIAN
! 72: #define RF_IS_BIG_ENDIAN 0
! 73: #else
! 74: #error byte order not defined
! 75: #endif
! 76: typedef int8_t RF_int8;
! 77: typedef u_int8_t RF_uint8;
! 78: typedef int16_t RF_int16;
! 79: typedef u_int16_t RF_uint16;
! 80: typedef int32_t RF_int32;
! 81: typedef u_int32_t RF_uint32;
! 82: typedef int64_t RF_int64;
! 83: typedef u_int64_t RF_uint64;
! 84: #if LONG_BIT == 32
! 85: #define RF_LONGSHIFT 2
! 86: #elif LONG_BIT == 64
! 87: #define RF_LONGSHIFT 3
! 88: #else
! 89: #error word size not defined
! 90: #endif
! 91:
! 92: /*
! 93: * These are just zero and non-zero. We don't use "TRUE"
! 94: * and "FALSE" because there's too much nonsense trying
! 95: * to get them defined exactly once on every platform, given
! 96: * the different places they may be defined in system header
! 97: * files.
! 98: */
! 99: #define RF_TRUE 1
! 100: #define RF_FALSE 0
! 101:
! 102: /*
! 103: * Now, some generic types.
! 104: */
! 105: typedef RF_uint64 RF_IoCount_t;
! 106: typedef RF_uint64 RF_Offset_t;
! 107: typedef RF_uint32 RF_PSSFlags_t;
! 108: typedef RF_uint64 RF_SectorCount_t;
! 109: typedef RF_uint64 RF_StripeCount_t;
! 110: typedef RF_int64 RF_SectorNum_t; /*
! 111: * These are unsigned so we can set
! 112: * them to (-1) for "uninitialized".
! 113: */
! 114: typedef RF_int64 RF_StripeNum_t;
! 115: typedef RF_int64 RF_RaidAddr_t;
! 116: typedef int RF_RowCol_t; /* Unsigned so it can be (-1). */
! 117: typedef RF_int64 RF_HeadSepLimit_t;
! 118: typedef RF_int64 RF_ReconUnitCount_t;
! 119: typedef int RF_ReconUnitNum_t;
! 120:
! 121: typedef char RF_ParityConfig_t;
! 122:
! 123: typedef char RF_DiskQueueType_t[1024];
! 124: #define RF_DISK_QUEUE_TYPE_NONE ""
! 125:
! 126: /* Values for the 'type' field in a reconstruction buffer. */
! 127: typedef int RF_RbufType_t;
! 128: #define RF_RBUF_TYPE_EXCLUSIVE 0 /*
! 129: * This buf assigned exclusively to
! 130: * one disk.
! 131: */
! 132: #define RF_RBUF_TYPE_FLOATING 1 /* This is a floating recon buf. */
! 133: #define RF_RBUF_TYPE_FORCED 2 /*
! 134: * This rbuf was allocated to complete
! 135: * a forced recon.
! 136: */
! 137:
! 138: typedef char RF_IoType_t;
! 139: #define RF_IO_TYPE_READ 'r'
! 140: #define RF_IO_TYPE_WRITE 'w'
! 141: #define RF_IO_TYPE_NOP 'n'
! 142: #define RF_IO_IS_R_OR_W(_type_) \
! 143: (((_type_) == RF_IO_TYPE_READ) || ((_type_) == RF_IO_TYPE_WRITE))
! 144:
! 145: typedef void (*RF_VoidFuncPtr) (void *,...);
! 146:
! 147: typedef RF_uint32 RF_AccessStripeMapFlags_t;
! 148: typedef RF_uint32 RF_DiskQueueDataFlags_t;
! 149: typedef RF_uint32 RF_DiskQueueFlags_t;
! 150: typedef RF_uint32 RF_RaidAccessFlags_t;
! 151:
! 152: #define RF_DISKQUEUE_DATA_FLAGS_NONE ((RF_DiskQueueDataFlags_t)0)
! 153:
! 154: typedef struct RF_AccessStripeMap_s RF_AccessStripeMap_t;
! 155: typedef struct RF_AccessStripeMapHeader_s RF_AccessStripeMapHeader_t;
! 156: typedef struct RF_AllocListElem_s RF_AllocListElem_t;
! 157: typedef struct RF_CallbackDesc_s RF_CallbackDesc_t;
! 158: typedef struct RF_ChunkDesc_s RF_ChunkDesc_t;
! 159: typedef struct RF_CommonLogData_s RF_CommonLogData_t;
! 160: typedef struct RF_Config_s RF_Config_t;
! 161: typedef struct RF_CumulativeStats_s RF_CumulativeStats_t;
! 162: typedef struct RF_DagHeader_s RF_DagHeader_t;
! 163: typedef struct RF_DagList_s RF_DagList_t;
! 164: typedef struct RF_DagNode_s RF_DagNode_t;
! 165: typedef struct RF_DeclusteredConfigInfo_s RF_DeclusteredConfigInfo_t;
! 166: typedef struct RF_DiskId_s RF_DiskId_t;
! 167: typedef struct RF_DiskMap_s RF_DiskMap_t;
! 168: typedef struct RF_DiskQueue_s RF_DiskQueue_t;
! 169: typedef struct RF_DiskQueueData_s RF_DiskQueueData_t;
! 170: typedef struct RF_DiskQueueSW_s RF_DiskQueueSW_t;
! 171: typedef struct RF_Etimer_s RF_Etimer_t;
! 172: typedef struct RF_EventCreate_s RF_EventCreate_t;
! 173: typedef struct RF_FreeList_s RF_FreeList_t;
! 174: typedef struct RF_LockReqDesc_s RF_LockReqDesc_t;
! 175: typedef struct RF_LockTableEntry_s RF_LockTableEntry_t;
! 176: typedef struct RF_MCPair_s RF_MCPair_t;
! 177: typedef struct RF_OwnerInfo_s RF_OwnerInfo_t;
! 178: typedef struct RF_ParityLog_s RF_ParityLog_t;
! 179: typedef struct RF_ParityLogAppendQueue_s RF_ParityLogAppendQueue_t;
! 180: typedef struct RF_ParityLogData_s RF_ParityLogData_t;
! 181: typedef struct RF_ParityLogDiskQueue_s RF_ParityLogDiskQueue_t;
! 182: typedef struct RF_ParityLogQueue_s RF_ParityLogQueue_t;
! 183: typedef struct RF_ParityLogRecord_s RF_ParityLogRecord_t;
! 184: typedef struct RF_PerDiskReconCtrl_s RF_PerDiskReconCtrl_t;
! 185: typedef struct RF_PSStatusHeader_s RF_PSStatusHeader_t;
! 186: typedef struct RF_PhysDiskAddr_s RF_PhysDiskAddr_t;
! 187: typedef struct RF_PropHeader_s RF_PropHeader_t;
! 188: typedef struct RF_Raid_s RF_Raid_t;
! 189: typedef struct RF_RaidAccessDesc_s RF_RaidAccessDesc_t;
! 190: typedef struct RF_RaidDisk_s RF_RaidDisk_t;
! 191: typedef struct RF_RaidLayout_s RF_RaidLayout_t;
! 192: typedef struct RF_RaidReconDesc_s RF_RaidReconDesc_t;
! 193: typedef struct RF_ReconBuffer_s RF_ReconBuffer_t;
! 194: typedef struct RF_ReconConfig_s RF_ReconConfig_t;
! 195: typedef struct RF_ReconCtrl_s RF_ReconCtrl_t;
! 196: typedef struct RF_ReconDoneProc_s RF_ReconDoneProc_t;
! 197: typedef struct RF_ReconEvent_s RF_ReconEvent_t;
! 198: typedef struct RF_ReconMap_s RF_ReconMap_t;
! 199: typedef struct RF_ReconMapListElem_s RF_ReconMapListElem_t;
! 200: typedef struct RF_ReconParityStripeStatus_s RF_ReconParityStripeStatus_t;
! 201: typedef struct RF_RedFuncs_s RF_RedFuncs_t;
! 202: typedef struct RF_RegionBufferQueue_s RF_RegionBufferQueue_t;
! 203: typedef struct RF_RegionInfo_s RF_RegionInfo_t;
! 204: typedef struct RF_ShutdownList_s RF_ShutdownList_t;
! 205: typedef struct RF_SpareTableEntry_s RF_SpareTableEntry_t;
! 206: typedef struct RF_SparetWait_s RF_SparetWait_t;
! 207: typedef struct RF_StripeLockDesc_s RF_StripeLockDesc_t;
! 208: typedef struct RF_ThreadGroup_s RF_ThreadGroup_t;
! 209: typedef struct RF_ThroughputStats_s RF_ThroughputStats_t;
! 210:
! 211: /*
! 212: * Important assumptions regarding ordering of the states in this list
! 213: * have been made !!!
! 214: * Before disturbing this ordering, look at code in rf_states.c
! 215: */
! 216: typedef enum RF_AccessState_e {
! 217: /* Original states. */
! 218: rf_QuiesceState, /* Handles quiescence for reconstruction. */
! 219: rf_IncrAccessesCountState, /* Count accesses in flight. */
! 220: rf_DecrAccessesCountState,
! 221: rf_MapState, /* Map access to disk addresses. */
! 222: rf_LockState, /* Take stripe locks. */
! 223: rf_CreateDAGState, /* Create DAGs. */
! 224: rf_ExecuteDAGState, /* Execute DAGs. */
! 225: rf_ProcessDAGState, /*
! 226: * DAGs are completing - check if correct, or
! 227: * if we need to retry.
! 228: */
! 229: rf_CleanupState, /* Release stripe locks, clean up. */
! 230: rf_LastState /* Must be the last state. */
! 231: } RF_AccessState_t;
! 232: #define RF_MAXROW 10 /*
! 233: * These are arbitrary and can be modified at
! 234: * will.
! 235: */
! 236: #define RF_MAXCOL 40
! 237: #define RF_MAXSPARE 10
! 238: #define RF_MAXDBGV 75 /* Max number of debug variables. */
! 239: #define RF_MAXDBGVLEN 50 /* Max length of debug variables. */
! 240:
! 241: union RF_GenericParam_u {
! 242: void *p;
! 243: RF_uint64 v;
! 244: };
! 245: typedef union RF_GenericParam_u RF_DagParam_t;
! 246: typedef union RF_GenericParam_u RF_CBParam_t;
! 247:
! 248: #endif /* _RF__RF_TYPES_H_ */
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