Annotation of sys/dev/raidframe/rf_dagfuncs.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: rf_dagfuncs.h,v 1.4 2002/12/16 07:01:03 tdeval Exp $ */
! 2: /* $NetBSD: rf_dagfuncs.h,v 1.4 2000/03/30 13:39:07 oster Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1995 Carnegie-Mellon University.
! 6: * All rights reserved.
! 7: *
! 8: * Author: Mark Holland, William V. Courtright II, Jim Zelenka
! 9: *
! 10: * Permission to use, copy, modify and distribute this software and
! 11: * its documentation is hereby granted, provided that both the copyright
! 12: * notice and this permission notice appear in all copies of the
! 13: * software, derivative works or modified versions, and any portions
! 14: * thereof, and that both notices appear in supporting documentation.
! 15: *
! 16: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
! 17: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
! 18: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
! 19: *
! 20: * Carnegie Mellon requests users of this software to return to
! 21: *
! 22: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
! 23: * School of Computer Science
! 24: * Carnegie Mellon University
! 25: * Pittsburgh PA 15213-3890
! 26: *
! 27: * any improvements or extensions that they make and grant Carnegie the
! 28: * rights to redistribute these changes.
! 29: */
! 30:
! 31: /*****************************************************************************
! 32: *
! 33: * dagfuncs.h -- Header file for DAG node execution routines.
! 34: *
! 35: *****************************************************************************/
! 36:
! 37: #ifndef _RF__RF_DAGFUNCS_H_
! 38: #define _RF__RF_DAGFUNCS_H_
! 39:
! 40: int rf_ConfigureDAGFuncs(RF_ShutdownList_t **);
! 41: int rf_TerminateFunc(RF_DagNode_t *);
! 42: int rf_TerminateUndoFunc(RF_DagNode_t *);
! 43: int rf_DiskReadMirrorIdleFunc(RF_DagNode_t *);
! 44: int rf_DiskReadMirrorPartitionFunc(RF_DagNode_t *);
! 45: int rf_DiskReadMirrorUndoFunc(RF_DagNode_t *);
! 46: int rf_ParityLogUpdateFunc(RF_DagNode_t *);
! 47: int rf_ParityLogOverwriteFunc(RF_DagNode_t *);
! 48: int rf_ParityLogUpdateUndoFunc(RF_DagNode_t *);
! 49: int rf_ParityLogOverwriteUndoFunc(RF_DagNode_t *);
! 50: int rf_NullNodeFunc(RF_DagNode_t *);
! 51: int rf_NullNodeUndoFunc(RF_DagNode_t *);
! 52: int rf_DiskReadFuncForThreads(RF_DagNode_t *);
! 53: int rf_DiskWriteFuncForThreads(RF_DagNode_t *);
! 54: int rf_DiskUndoFunc(RF_DagNode_t *);
! 55: int rf_DiskUnlockFuncForThreads(RF_DagNode_t *);
! 56: int rf_GenericWakeupFunc(RF_DagNode_t *, int);
! 57: int rf_RegularXorFunc(RF_DagNode_t *);
! 58: int rf_SimpleXorFunc(RF_DagNode_t *);
! 59: int rf_RecoveryXorFunc(RF_DagNode_t *);
! 60: int rf_XorIntoBuffer(RF_Raid_t *, RF_PhysDiskAddr_t *, char *, char *, void *);
! 61: int rf_bxor(char *, char *, int, void *);
! 62: int rf_longword_bxor(unsigned long *, unsigned long *, int, void *);
! 63: int rf_longword_bxor3(unsigned long *, unsigned long *, unsigned long *,
! 64: unsigned long *, int, void *);
! 65: int rf_bxor3(unsigned char *, unsigned char *, unsigned char *,
! 66: unsigned char *, unsigned long, void *);
! 67:
! 68: /* Function ptrs defined in ConfigureDAGFuncs(). */
! 69: extern int (*rf_DiskReadFunc) (RF_DagNode_t *);
! 70: extern int (*rf_DiskWriteFunc) (RF_DagNode_t *);
! 71: extern int (*rf_DiskReadUndoFunc) (RF_DagNode_t *);
! 72: extern int (*rf_DiskWriteUndoFunc) (RF_DagNode_t *);
! 73: extern int (*rf_DiskUnlockFunc) (RF_DagNode_t *);
! 74: extern int (*rf_DiskUnlockUndoFunc) (RF_DagNode_t *);
! 75: extern int (*rf_SimpleXorUndoFunc) (RF_DagNode_t *);
! 76: extern int (*rf_RegularXorUndoFunc) (RF_DagNode_t *);
! 77: extern int (*rf_RecoveryXorUndoFunc) (RF_DagNode_t *);
! 78:
! 79: /* Macros for manipulating the param[3] in a read or write node. */
! 80: #define RF_CREATE_PARAM3(pri,lk,unlk,wru) \
! 81: (((RF_uint64) (((wru & 0xFFFFFF) << 8) | ((lk) ? 0x10 : 0) | \
! 82: ((unlk) ? 0x20 : 0) | ((pri) & 0xF))))
! 83: #define RF_EXTRACT_PRIORITY(_x_) \
! 84: ((((unsigned) ((unsigned long)(_x_))) >> 0) & 0x0F)
! 85: #define RF_EXTRACT_LOCK_FLAG(_x_) \
! 86: ((((unsigned) ((unsigned long)(_x_))) >> 4) & 0x1)
! 87: #define RF_EXTRACT_UNLOCK_FLAG(_x_) \
! 88: ((((unsigned) ((unsigned long)(_x_))) >> 5) & 0x1)
! 89: #define RF_EXTRACT_RU(_x_) \
! 90: ((((unsigned) ((unsigned long)(_x_))) >> 8) & 0xFFFFFF)
! 91:
! 92: #endif /* !_RF__RF_DAGFUNCS_H_ */
CVSweb