/* $NetBSD: rf_pq.h,v 1.6 2019/10/10 03:43:59 christos Exp $ */ /* * rf_pq.h */ /* * Copyright (c) 1995 Carnegie-Mellon University. * All rights reserved. * * Author: Daniel Stodolsky * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #ifndef _RF__RF_PQ_H_ #define _RF__RF_PQ_H_ #include "rf_archs.h" extern RF_RedFuncs_t rf_pFuncs; extern RF_RedFuncs_t rf_pRecoveryFuncs; void rf_RegularONPFunc(RF_DagNode_t * node); void rf_SimpleONPFunc(RF_DagNode_t * node); void rf_RecoveryPFunc(RF_DagNode_t * node); void rf_RegularPFunc(RF_DagNode_t * node); #if (RF_INCLUDE_DECL_PQ > 0) || (RF_INCLUDE_RAID6 > 0) extern RF_RedFuncs_t rf_qFuncs; extern RF_RedFuncs_t rf_qRecoveryFuncs; extern RF_RedFuncs_t rf_pqRecoveryFuncs; void rf_PQDagSelect(RF_Raid_t * raidPtr, RF_IoType_t type, RF_AccessStripeMap_t * asmap, RF_VoidFuncPtr * createFunc); RF_CREATE_DAG_FUNC_DECL(rf_PQCreateLargeWriteDAG); void rf_RegularONQFunc(RF_DagNode_t * node); void rf_SimpleONQFunc(RF_DagNode_t * node); RF_CREATE_DAG_FUNC_DECL(rf_PQCreateSmallWriteDAG); void rf_RegularPQFunc(RF_DagNode_t * node); void rf_RegularQFunc(RF_DagNode_t * node); void rf_Degraded_100_PQFunc(RF_DagNode_t * node); void rf_RecoveryQFunc(RF_DagNode_t * node); void rf_RecoveryPQFunc(RF_DagNode_t * node); void rf_PQ_DegradedWriteQFunc(RF_DagNode_t * node); void rf_IncQ(unsigned long *dest, unsigned long *buf, unsigned length, unsigned coeff); void rf_PQ_recover(unsigned long *pbuf, unsigned long *qbuf, unsigned long *abuf, unsigned long *bbuf, unsigned length, unsigned coeff_a, unsigned coeff_b); #endif /* (RF_INCLUDE_DECL_PQ > 0) || * (RF_INCLUDE_RAID6 > 0) */ #endif /* !_RF__RF_PQ_H_ */ |