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      1  1.6  christos /*	$NetBSD: rf_pq.h,v 1.6 2019/10/10 03:43:59 christos Exp $	*/
      2  1.1     oster /*
      3  1.1     oster  * rf_pq.h
      4  1.1     oster  */
      5  1.1     oster /*
      6  1.1     oster  * Copyright (c) 1995 Carnegie-Mellon University.
      7  1.1     oster  * All rights reserved.
      8  1.1     oster  *
      9  1.1     oster  * Author: Daniel Stodolsky
     10  1.1     oster  *
     11  1.1     oster  * Permission to use, copy, modify and distribute this software and
     12  1.1     oster  * its documentation is hereby granted, provided that both the copyright
     13  1.1     oster  * notice and this permission notice appear in all copies of the
     14  1.1     oster  * software, derivative works or modified versions, and any portions
     15  1.1     oster  * thereof, and that both notices appear in supporting documentation.
     16  1.1     oster  *
     17  1.1     oster  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     18  1.1     oster  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     19  1.1     oster  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     20  1.1     oster  *
     21  1.1     oster  * Carnegie Mellon requests users of this software to return to
     22  1.1     oster  *
     23  1.1     oster  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     24  1.1     oster  *  School of Computer Science
     25  1.1     oster  *  Carnegie Mellon University
     26  1.1     oster  *  Pittsburgh PA 15213-3890
     27  1.1     oster  *
     28  1.1     oster  * any improvements or extensions that they make and grant Carnegie the
     29  1.1     oster  * rights to redistribute these changes.
     30  1.1     oster  */
     31  1.1     oster 
     32  1.1     oster #ifndef _RF__RF_PQ_H_
     33  1.1     oster #define _RF__RF_PQ_H_
     34  1.1     oster 
     35  1.1     oster #include "rf_archs.h"
     36  1.1     oster 
     37  1.1     oster extern RF_RedFuncs_t rf_pFuncs;
     38  1.1     oster extern RF_RedFuncs_t rf_pRecoveryFuncs;
     39  1.1     oster 
     40  1.6  christos void    rf_RegularONPFunc(RF_DagNode_t * node);
     41  1.6  christos void    rf_SimpleONPFunc(RF_DagNode_t * node);
     42  1.6  christos void    rf_RecoveryPFunc(RF_DagNode_t * node);
     43  1.6  christos void    rf_RegularPFunc(RF_DagNode_t * node);
     44  1.1     oster 
     45  1.1     oster #if (RF_INCLUDE_DECL_PQ > 0) || (RF_INCLUDE_RAID6 > 0)
     46  1.1     oster 
     47  1.1     oster extern RF_RedFuncs_t rf_qFuncs;
     48  1.1     oster extern RF_RedFuncs_t rf_qRecoveryFuncs;
     49  1.1     oster extern RF_RedFuncs_t rf_pqRecoveryFuncs;
     50  1.1     oster 
     51  1.4     perry void
     52  1.3     oster rf_PQDagSelect(RF_Raid_t * raidPtr, RF_IoType_t type,
     53  1.3     oster     RF_AccessStripeMap_t * asmap, RF_VoidFuncPtr * createFunc);
     54  1.1     oster RF_CREATE_DAG_FUNC_DECL(rf_PQCreateLargeWriteDAG);
     55  1.6  christos void    rf_RegularONQFunc(RF_DagNode_t * node);
     56  1.6  christos void    rf_SimpleONQFunc(RF_DagNode_t * node);
     57  1.1     oster RF_CREATE_DAG_FUNC_DECL(rf_PQCreateSmallWriteDAG);
     58  1.6  christos void    rf_RegularPQFunc(RF_DagNode_t * node);
     59  1.6  christos void    rf_RegularQFunc(RF_DagNode_t * node);
     60  1.3     oster void    rf_Degraded_100_PQFunc(RF_DagNode_t * node);
     61  1.6  christos void    rf_RecoveryQFunc(RF_DagNode_t * node);
     62  1.6  christos void    rf_RecoveryPQFunc(RF_DagNode_t * node);
     63  1.3     oster void    rf_PQ_DegradedWriteQFunc(RF_DagNode_t * node);
     64  1.4     perry void
     65  1.3     oster rf_IncQ(unsigned long *dest, unsigned long *buf, unsigned length,
     66  1.3     oster     unsigned coeff);
     67  1.4     perry void
     68  1.3     oster rf_PQ_recover(unsigned long *pbuf, unsigned long *qbuf, unsigned long *abuf,
     69  1.3     oster     unsigned long *bbuf, unsigned length, unsigned coeff_a, unsigned coeff_b);
     70  1.1     oster 
     71  1.3     oster #endif				/* (RF_INCLUDE_DECL_PQ > 0) ||
     72  1.3     oster 				 * (RF_INCLUDE_RAID6 > 0) */
     73  1.1     oster 
     74  1.3     oster #endif				/* !_RF__RF_PQ_H_ */
     75