62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/* $NetBSD: rf_parityscan.h,v 1.6 2005/05/29 22:03:09 christos 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 <dev/raidframe/raidframevar.h>
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#include "rf_alloclist.h"
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int rf_RewriteParity(RF_Raid_t *);
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int rf_VerifyParityBasic(RF_Raid_t *, RF_RaidAddr_t, RF_PhysDiskAddr_t *,
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int, RF_RaidAccessFlags_t);
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int rf_VerifyParity(RF_Raid_t *, RF_AccessStripeMap_t *, int,
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RF_RaidAccessFlags_t);
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int rf_TryToRedirectPDA(RF_Raid_t *, RF_PhysDiskAddr_t *, int);
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int rf_VerifyDegrModeWrite(RF_Raid_t *, RF_AccessStripeMapHeader_t *);
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RF_DagHeader_t *rf_MakeSimpleDAG(RF_Raid_t *, int, int, char *,
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int (*)(RF_DagNode_t *), int (*) (RF_DagNode_t *), const char *,
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RF_AllocListElem_t *, RF_RaidAccessFlags_t, int);
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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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