67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
/* $NetBSD: rf_parityscan.h,v 1.3 1999/02/05 00:06:14 oster Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Mark Holland
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#ifndef _RF__RF_PARITYSCAN_H_
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#define _RF__RF_PARITYSCAN_H_
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#include "rf_types.h"
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#include "rf_alloclist.h"
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int rf_RewriteParity(RF_Raid_t * raidPtr);
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int
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rf_VerifyParityBasic(RF_Raid_t * raidPtr, RF_RaidAddr_t raidAddr,
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RF_PhysDiskAddr_t * parityPDA, int correct_it, RF_RaidAccessFlags_t flags);
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int
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rf_VerifyParity(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * stripeMap,
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int correct_it, RF_RaidAccessFlags_t flags);
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int rf_TryToRedirectPDA(RF_Raid_t * raidPtr, RF_PhysDiskAddr_t * pda, int parity);
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int rf_VerifyDegrModeWrite(RF_Raid_t * raidPtr, RF_AccessStripeMapHeader_t * asmh);
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RF_DagHeader_t *
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rf_MakeSimpleDAG(RF_Raid_t * raidPtr, int nNodes,
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int bytesPerSU, char *databuf,
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int (*doFunc) (RF_DagNode_t *),
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int (*undoFunc) (RF_DagNode_t *),
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char *name, RF_AllocListElem_t * alloclist,
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RF_RaidAccessFlags_t flags, int priority);
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#define RF_DO_CORRECT_PARITY 1
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#define RF_DONT_CORRECT_PARITY 0
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/*
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* Return vals for VerifyParity operation
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*
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* Ordering is important here.
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*/
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#define RF_PARITY_OKAY 0 /* or no parity information */
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#define RF_PARITY_CORRECTED 1
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#define RF_PARITY_BAD 2
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#define RF_PARITY_COULD_NOT_CORRECT 3
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#define RF_PARITY_COULD_NOT_VERIFY 4
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#endif /* !_RF__RF_PARITYSCAN_H_ */
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