/* $NetBSD: rf_dagdegwr.h,v 1.7 2019/10/10 03:43:59 christos Exp $ */

/* $NetBSD: rf_dagdegwr.h,v 1.7 2019/10/10 03:43:59 christos 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 [email protected]
* 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_DAGDEGWR_H_
#define _RF__RF_DAGDEGWR_H_

/* degraded write DAG creation routines */
void rf_CreateDegradedWriteDAG(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_CommonCreateSimpleDegradedWriteDAG(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, void (*redFunc) (RF_DagNode_t *), int allowBufferRecycle);

void rf_WriteGenerateFailedAccessASMs(RF_Raid_t * raidPtr,
RF_AccessStripeMap_t * asmap, RF_PhysDiskAddr_t ** pdap,
int *nNodep, RF_PhysDiskAddr_t ** pqpdap,
int *nPQNodep, RF_AllocListElem_t * allocList);

void rf_DoubleDegSmallWrite(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap,
RF_DagHeader_t * dag_h, void *bp, RF_RaidAccessFlags_t flags,
RF_AllocListElem_t * allocList, const char *redundantReadNodeName,
const char *redundantWriteNodeName, const char *recoveryNodeName,
void (*recovFunc) (RF_DagNode_t *));

#endif /* !_RF__RF_DAGDEGWR_H_ */