38a3987b69
Carnegie Mellon University. Full RAID implementation, including levels 0, 1, 4, 5, 6, parity logging, and a few other goodies. Ported to NetBSD by Greg Oster.
81 lines
3.0 KiB
C
81 lines
3.0 KiB
C
/* $NetBSD: rf_dagdegwr.h,v 1.1 1998/11/13 04:20:27 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, Daniel Stodolsky, William V. Courtright II
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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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/*
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* :
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* Log: rf_dagdegwr.h,v
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* Revision 1.6 1996/07/31 16:30:28 jimz
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* asm/asmap fix (EO merge)
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*
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* Revision 1.5 1996/07/31 15:35:38 jimz
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* evenodd changes; bugfixes for double-degraded archs, generalize
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* some formerly PQ-only functions
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*
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* Revision 1.4 1996/07/22 19:52:16 jimz
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* switched node params to RF_DagParam_t, a union of
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* a 64-bit int and a void *, for better portability
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* attempted hpux port, but failed partway through for
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* lack of a single C compiler capable of compiling all
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* source files
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*
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* Revision 1.3 1996/05/24 22:17:04 jimz
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* continue code + namespace cleanup
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* typed a bunch of flags
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*
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* Revision 1.2 1996/05/23 21:46:35 jimz
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* checkpoint in code cleanup (release prep)
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* lots of types, function names have been fixed
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*
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* Revision 1.1 1996/05/03 19:21:28 wvcii
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* Initial revision
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*
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*/
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#ifndef _RF__RF_DAGDEGWR_H_
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#define _RF__RF_DAGDEGWR_H_
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/* degraded write DAG creation routines */
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void rf_CreateDegradedWriteDAG(RF_Raid_t *raidPtr,
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RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
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RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList);
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void rf_CommonCreateSimpleDegradedWriteDAG(RF_Raid_t *raidPtr,
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RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
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RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList,
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int nfaults, int (*redFunc)(RF_DagNode_t *), int allowBufferRecycle);
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void rf_WriteGenerateFailedAccessASMs(RF_Raid_t *raidPtr,
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RF_AccessStripeMap_t *asmap, RF_PhysDiskAddr_t **pdap,
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int *nNodep, RF_PhysDiskAddr_t **pqpdap,
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int *nPQNodep, RF_AllocListElem_t *allocList);
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void rf_DoubleDegSmallWrite(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap,
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RF_DagHeader_t *dag_h, void *bp, RF_RaidAccessFlags_t flags,
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RF_AllocListElem_t *allocList, char *redundantReadNodeName,
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char *redundantWriteNodeName, char *recoveryNodeName,
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int (*recovFunc)(RF_DagNode_t *));
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#endif /* !_RF__RF_DAGDEGWR_H_ */
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