rf_types.h

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 * First, define system-dependent types and constants.
 *
 * If the machine is big-endian, RF_BIG_ENDIAN should be 1.
 * Otherwise, it should be 0.
 *
 * The various integer types should be self-explanatory; we
 * use these elsewhere to avoid size confusion.
 *
 * LONGSHIFT is lg(sizeof(long)) (that is, log base two of sizeof(long)
 *
 */

#ifdef __alpha
#define RF_IS_BIG_ENDIAN    0
typedef signed char         RF_int8;
typedef unsigned char       RF_uint8;
typedef short               RF_int16;
typedef unsigned short      RF_uint16;
typedef int                 RF_int32;
typedef unsigned int        RF_uint32;
typedef long                RF_int64;
typedef unsigned long       RF_uint64;
#define RF_LONGSHIFT        3
#endif /* __alpha */

#ifdef _IBMR2
#define RF_IS_BIG_ENDIAN    1
typedef signed char         RF_int8;
typedef unsigned char       RF_uint8;
typedef short               RF_int16;
typedef unsigned short      RF_uint16;
typedef int                 RF_int32;
typedef unsigned int        RF_uint32;
typedef long long           RF_int64;
typedef unsigned long long  RF_uint64;
#define RF_LONGSHIFT        2
#endif /* _IBMR2 */

#ifdef hpux
#define RF_IS_BIG_ENDIAN    1
typedef signed char         RF_int8;
typedef unsigned char       RF_uint8;
typedef short               RF_int16;
typedef unsigned short      RF_uint16;
typedef int                 RF_int32;
typedef unsigned int        RF_uint32;
typedef long long           RF_int64;
typedef unsigned long long  RF_uint64;
#define RF_LONGSHIFT        2
#endif /* hpux */

#ifdef sun
#define RF_IS_BIG_ENDIAN    1
typedef char                RF_int8;
typedef unsigned char       RF_uint8;
typedef short               RF_int16;
typedef unsigned short      RF_uint16;
typedef int                 RF_int32;
typedef unsigned int        RF_uint32;
typedef long long           RF_int64;
typedef unsigned long long  RF_uint64;
#define RF_LONGSHIFT        2
#endif /* sun */

#if defined(NETBSD_I386) || defined(LINUX_I386)
#define RF_IS_BIG_ENDIAN    0
typedef char                RF_int8;
typedef unsigned char       RF_uint8;
typedef short               RF_int16;
typedef unsigned short      RF_uint16;
typedef int                 RF_int32;
typedef unsigned int        RF_uint32;
typedef long long           RF_int64;
typedef unsigned long long  RF_uint64;
#define RF_LONGSHIFT        2
#endif /* NETBSD_I386 || LINUX_I386 */

#if defined(mips) && !defined(SGI)
#define RF_IS_BIG_ENDIAN    0
typedef char                RF_int8;
typedef unsigned char       RF_uint8;
typedef short               RF_int16;
typedef unsigned short      RF_uint16;
typedef int                 RF_int32;
typedef unsigned int        RF_uint32;
typedef long long           RF_int64;
typedef unsigned long long  RF_uint64;
#define RF_LONGSHIFT        2
#endif /* mips && !SGI */

#ifdef SGI
#if _MIPS_SZLONG == 64
#define RF_IS_BIG_ENDIAN    1
typedef signed char         RF_int8;
typedef unsigned char       RF_uint8;
typedef short               RF_int16;
typedef unsigned short      RF_uint16;
typedef int                 RF_int32;
typedef unsigned int        RF_uint32;
typedef long                RF_int64;
typedef unsigned long       RF_uint64;
#define RF_LONGSHIFT        3
#endif /* _MIPS_SZLONG == 64 */
#if _MIPS_SZLONG == 32
#define RF_IS_BIG_ENDIAN    1
typedef char                RF_int8;
typedef unsigned char       RF_uint8;
typedef short               RF_int16;
typedef unsigned short      RF_uint16;
typedef int                 RF_int32;
typedef unsigned int        RF_uint32;
typedef long long           RF_int64;
typedef unsigned long long  RF_uint64;
#define RF_LONGSHIFT        2
#endif /* _MIPS_SZLONG == 32 */
#endif /* SGI */

/*
 * These are just zero and non-zero. We don't use "TRUE"
 * and "FALSE" because there's too much nonsense trying
 * to get them defined exactly once on every platform, given
 * the different places they may be defined in system header
 * files.
 */
#define RF_TRUE  1
#define RF_FALSE 0

/*
 * Now, some generic types
 */
typedef RF_uint64    RF_IoCount_t;
typedef RF_uint64    RF_Offset_t;
typedef RF_uint32    RF_PSSFlags_t;
typedef RF_uint64    RF_SectorCount_t;
typedef RF_uint64    RF_StripeCount_t;
typedef RF_int64     RF_SectorNum_t; /* these are unsigned so we can set them to (-1) for "uninitialized" */
typedef RF_int64     RF_StripeNum_t;
typedef RF_int64     RF_RaidAddr_t;
typedef int          RF_RowCol_t; /* unsigned so it can be (-1) */
typedef RF_int64     RF_HeadSepLimit_t;
typedef RF_int64     RF_ReconUnitCount_t;
typedef int          RF_ReconUnitNum_t;

typedef char RF_ParityConfig_t;

typedef char RF_DiskQueueType_t[1024];
#define RF_DISK_QUEUE_TYPE_NONE ""

/* values for the 'type' field in a reconstruction buffer */
typedef int RF_RbufType_t;
#define RF_RBUF_TYPE_EXCLUSIVE   0    /* this buf assigned exclusively to one disk */
#define RF_RBUF_TYPE_FLOATING    1    /* this is a floating recon buf */
#define RF_RBUF_TYPE_FORCED      2    /* this rbuf was allocated to complete a forced recon */

typedef char RF_IoType_t;
#define RF_IO_TYPE_READ          'r'
#define RF_IO_TYPE_WRITE         'w'
#define RF_IO_TYPE_NOP           'n'
#define RF_IO_IS_R_OR_W(_type_) (((_type_) == RF_IO_TYPE_READ) \
                                || ((_type_) == RF_IO_TYPE_WRITE))

#ifdef SIMULATE
typedef double RF_TICS_t;
typedef int RF_Owner_t;
#endif /* SIMULATE */

typedef void (*RF_VoidFuncPtr)();

typedef RF_uint32 RF_AccessStripeMapFlags_t;
typedef RF_uint32 RF_DiskQueueDataFlags_t;
typedef RF_uint32 RF_DiskQueueFlags_t;
typedef RF_uint32 RF_RaidAccessFlags_t;

#define RF_DISKQUEUE_DATA_FLAGS_NONE ((RF_DiskQueueDataFlags_t)0)

typedef struct RF_AccessStripeMap_s          RF_AccessStripeMap_t;
typedef struct RF_AccessStripeMapHeader_s    RF_AccessStripeMapHeader_t;
typedef struct RF_AllocListElem_s            RF_AllocListElem_t;
typedef struct RF_CallbackDesc_s             RF_CallbackDesc_t;
typedef struct RF_ChunkDesc_s                RF_ChunkDesc_t;
typedef struct RF_CommonLogData_s            RF_CommonLogData_t;
typedef struct RF_Config_s                   RF_Config_t;
typedef struct RF_CumulativeStats_s          RF_CumulativeStats_t;
typedef struct RF_DagHeader_s                RF_DagHeader_t;
typedef struct RF_DagList_s                  RF_DagList_t;
typedef struct RF_DagNode_s                  RF_DagNode_t;
typedef struct RF_DeclusteredConfigInfo_s    RF_DeclusteredConfigInfo_t;
typedef struct RF_DiskId_s                   RF_DiskId_t;
typedef struct RF_DiskMap_s                  RF_DiskMap_t;
typedef struct RF_DiskQueue_s                RF_DiskQueue_t;
typedef struct RF_DiskQueueData_s            RF_DiskQueueData_t;
typedef struct RF_DiskQueueSW_s              RF_DiskQueueSW_t;
typedef struct RF_Etimer_s                   RF_Etimer_t;
typedef struct RF_EventCreate_s              RF_EventCreate_t;
typedef struct RF_FreeList_s                 RF_FreeList_t;
typedef struct RF_LockReqDesc_s              RF_LockReqDesc_t;
typedef struct RF_LockTableEntry_s           RF_LockTableEntry_t;
typedef struct RF_MCPair_s                   RF_MCPair_t;
typedef struct RF_OwnerInfo_s                RF_OwnerInfo_t;
typedef struct RF_ParityLog_s                RF_ParityLog_t;
typedef struct RF_ParityLogAppendQueue_s     RF_ParityLogAppendQueue_t;
typedef struct RF_ParityLogData_s            RF_ParityLogData_t;
typedef struct RF_ParityLogDiskQueue_s       RF_ParityLogDiskQueue_t;
typedef struct RF_ParityLogQueue_s           RF_ParityLogQueue_t;
typedef struct RF_ParityLogRecord_s          RF_ParityLogRecord_t;
typedef struct RF_PerDiskReconCtrl_s         RF_PerDiskReconCtrl_t;
typedef struct RF_PSStatusHeader_s           RF_PSStatusHeader_t;
typedef struct RF_PhysDiskAddr_s             RF_PhysDiskAddr_t;
typedef struct RF_PropHeader_s               RF_PropHeader_t;
typedef struct RF_Raid_s                     RF_Raid_t;
typedef struct RF_RaidAccessDesc_s           RF_RaidAccessDesc_t;
typedef struct RF_RaidDisk_s                 RF_RaidDisk_t;
typedef struct RF_RaidLayout_s               RF_RaidLayout_t;
typedef struct RF_RaidReconDesc_s            RF_RaidReconDesc_t;
typedef struct RF_ReconBuffer_s              RF_ReconBuffer_t;
typedef struct RF_ReconConfig_s              RF_ReconConfig_t;
typedef struct RF_ReconCtrl_s                RF_ReconCtrl_t;
typedef struct RF_ReconDoneProc_s            RF_ReconDoneProc_t;
typedef struct RF_ReconEvent_s               RF_ReconEvent_t;
typedef struct RF_ReconMap_s                 RF_ReconMap_t;
typedef struct RF_ReconMapListElem_s         RF_ReconMapListElem_t;
typedef struct RF_ReconParityStripeStatus_s  RF_ReconParityStripeStatus_t;
typedef struct RF_RedFuncs_s                 RF_RedFuncs_t;
typedef struct RF_RegionBufferQueue_s        RF_RegionBufferQueue_t;
typedef struct RF_RegionInfo_s               RF_RegionInfo_t;
typedef struct RF_ShutdownList_s             RF_ShutdownList_t;
typedef struct RF_SpareTableEntry_s          RF_SpareTableEntry_t;
typedef struct RF_SparetWait_s               RF_SparetWait_t;
typedef struct RF_StripeLockDesc_s           RF_StripeLockDesc_t;
typedef struct RF_ThreadGroup_s              RF_ThreadGroup_t;
typedef struct RF_ThroughputStats_s          RF_ThroughputStats_t;

/*
 * Important assumptions regarding ordering of the states in this list
 * have been made!!!
 * Before disturbing this ordering, look at code in rf_states.c
 */
typedef enum RF_AccessState_e {
  /* original states */
  rf_QuiesceState,           /* handles queisence for reconstruction */
  rf_IncrAccessesCountState, /* count accesses in flight */
  rf_DecrAccessesCountState,
  rf_MapState,               /* map access to disk addresses */
  rf_LockState,              /* take stripe locks */
  rf_CreateDAGState,         /* create DAGs */
  rf_ExecuteDAGState,        /* execute DAGs */
  rf_ProcessDAGState,        /* DAGs are completing- check if correct, or if we need to retry */
  rf_CleanupState,           /* release stripe locks, clean up */
  rf_LastState               /* must be the last state */
} RF_AccessState_t;

#define RF_MAXROW    10 /* these are arbitrary and can be modified at will */
#define RF_MAXCOL    40
#define RF_MAXSPARE  10
#define RF_MAXDBGV   75 /* max number of debug variables */

union RF_GenericParam_u {
  void       *p;
  RF_uint64   v;
};
typedef union RF_GenericParam_u RF_DagParam_t;
typedef union RF_GenericParam_u RF_CBParam_t;

#endif /* _RF__RF_TYPES_H_ */