1/* $NetBSD: rf_dagfuncs.h,v 1.11 2019/10/10 03:43:59 christos Exp $ */ 2/* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Mark Holland, William V. Courtright II, Jim Zelenka 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29/***************************************************************************************** 30 * 31 * dagfuncs.h -- header file for DAG node execution routines 32 * 33 ****************************************************************************************/ 34 35#ifndef _RF__RF_DAGFUNCS_H_ 36#define _RF__RF_DAGFUNCS_H_ 37 38int rf_ConfigureDAGFuncs(RF_ShutdownList_t ** listp); 39void rf_TerminateFunc(RF_DagNode_t * node); 40void rf_TerminateUndoFunc(RF_DagNode_t * node); 41void rf_DiskReadMirrorIdleFunc(RF_DagNode_t * node); 42void rf_DiskReadMirrorPartitionFunc(RF_DagNode_t * node); 43void rf_DiskReadMirrorUndoFunc(RF_DagNode_t * node); 44void rf_ParityLogUpdateFunc(RF_DagNode_t * node); 45void rf_ParityLogOverwriteFunc(RF_DagNode_t * node); 46void rf_ParityLogUpdateUndoFunc(RF_DagNode_t * node); 47void rf_ParityLogOverwriteUndoFunc(RF_DagNode_t * node); 48void rf_NullNodeFunc(RF_DagNode_t * node); 49void rf_NullNodeUndoFunc(RF_DagNode_t * node); 50void rf_DiskReadFuncForThreads(RF_DagNode_t * node); 51void rf_DiskWriteFuncForThreads(RF_DagNode_t * node); 52void rf_DiskUndoFunc(RF_DagNode_t * node); 53void rf_GenericWakeupFunc(void *, int); 54void rf_RegularXorFunc(RF_DagNode_t * node); 55void rf_SimpleXorFunc(RF_DagNode_t * node); 56void rf_RecoveryXorFunc(RF_DagNode_t * node); 57int 58rf_XorIntoBuffer(RF_Raid_t * raidPtr, RF_PhysDiskAddr_t * pda, char *srcbuf, 59 char *targbuf); 60int rf_bxor(char *src, char *dest, int len); 61int 62rf_longword_bxor(unsigned long *src, unsigned long *dest, int len); 63int 64rf_longword_bxor3(unsigned long *dest, unsigned long *a, unsigned long *b, 65 unsigned long *c, int len, void *bp); 66int 67rf_bxor3(unsigned char *dst, unsigned char *a, unsigned char *b, 68 unsigned char *c, unsigned long len, void *bp); 69 70/* function ptrs defined in ConfigureDAGFuncs() */ 71extern void (*rf_DiskReadFunc) (RF_DagNode_t *); 72extern void (*rf_DiskWriteFunc) (RF_DagNode_t *); 73extern void (*rf_DiskReadUndoFunc) (RF_DagNode_t *); 74extern void (*rf_DiskWriteUndoFunc) (RF_DagNode_t *); 75extern void (*rf_SimpleXorUndoFunc) (RF_DagNode_t *); 76extern void (*rf_RegularXorUndoFunc) (RF_DagNode_t *); 77extern void (*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, wru) (((RF_uint64)(((wru&0xFFFFFF)<<8)|((pri)&0xF)) )) 81#define RF_EXTRACT_PRIORITY(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 0) & 0x0F) 82#define RF_EXTRACT_RU(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 8) & 0xFFFFFF) 83 84#endif /* !_RF__RF_DAGFUNCS_H_ */ 85