/*	$OpenBSD: rf_dagffwr.h,v 1.1 1999/01/11 14:29:10 niklas Exp $	*/
/*	$NetBSD: rf_dagffwr.h,v 1.1 1998/11/13 04:20:27 oster Exp $	*/
/*
 * Copyright (c) 1995 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Author: Mark Holland, Daniel Stodolsky, William V. Courtright II
 *
 * 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.
 */

/* 
 * :  
 * Log: rf_dagffwr.h,v 
 * Revision 1.6  1996/07/31 15:35:29  jimz
 * evenodd changes; bugfixes for double-degraded archs, generalize
 * some formerly PQ-only functions
 *
 * Revision 1.5  1996/07/22  19:52:16  jimz
 * switched node params to RF_DagParam_t, a union of
 * a 64-bit int and a void *, for better portability
 * attempted hpux port, but failed partway through for
 * lack of a single C compiler capable of compiling all
 * source files
 *
 * Revision 1.4  1996/06/10  22:25:28  wvcii
 * added write dags which do not have a commit node and are
 * used in forward and backward error recovery experiments.
 *
 * Revision 1.3  1996/05/24  22:17:04  jimz
 * continue code + namespace cleanup
 * typed a bunch of flags
 *
 * Revision 1.2  1996/05/23  21:46:35  jimz
 * checkpoint in code cleanup (release prep)
 * lots of types, function names have been fixed
 *
 * Revision 1.1  1996/05/03  19:20:18  wvcii
 * Initial revision
 *
 */

#ifndef _RF__RF_DAGFFWR_H_
#define _RF__RF_DAGFFWR_H_

#include "rf_types.h"

/* fault-free write DAG creation routines */
void rf_CreateNonRedundantWriteDAG(RF_Raid_t *raidPtr,
	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList,
	RF_IoType_t type);
void rf_CreateRAID0WriteDAG(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap,
	RF_DagHeader_t *dag_h, void *bp, RF_RaidAccessFlags_t flags,
    RF_AllocListElem_t *allocList, RF_IoType_t type);
void rf_CreateSmallWriteDAG(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap,
	RF_DagHeader_t *dag_h, void *bp, RF_RaidAccessFlags_t flags,
    RF_AllocListElem_t *allocList);
void rf_CreateLargeWriteDAG(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap,
	RF_DagHeader_t *dag_h, void *bp, RF_RaidAccessFlags_t flags,
    RF_AllocListElem_t *allocList);
void rf_CommonCreateLargeWriteDAG(RF_Raid_t *raidPtr,
	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList, int nfaults,
	int (*redFunc)(RF_DagNode_t *), int allowBufferRecycle);
void rf_CommonCreateLargeWriteDAGFwd(RF_Raid_t *raidPtr,
	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList, int nfaults,
	int (*redFunc)(RF_DagNode_t *), int allowBufferRecycle);
void rf_CommonCreateSmallWriteDAG(RF_Raid_t *raidPtr,
	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList,
	RF_RedFuncs_t *pfuncs, RF_RedFuncs_t *qfuncs);
void rf_CommonCreateSmallWriteDAGFwd(RF_Raid_t *raidPtr,
	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList,
	RF_RedFuncs_t *pfuncs, RF_RedFuncs_t *qfuncs);
void rf_CreateRaidOneWriteDAG(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap,
	RF_DagHeader_t *dag_h, void *bp, RF_RaidAccessFlags_t flags,
	RF_AllocListElem_t *allocList);
void rf_CreateRaidOneWriteDAGFwd(RF_Raid_t *raidPtr,
	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList);

#endif /* !_RF__RF_DAGFFWR_H_ */