115 lines
3.8 KiB
C
115 lines
3.8 KiB
C
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/* $NetBSD: rf_pq.h,v 1.1 1998/11/13 04:20:32 oster Exp $ */
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/*
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* rf_pq.h
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*/
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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: Daniel Stodolsky
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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_pq.h,v
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* Revision 1.9 1996/07/31 15:35:05 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 1.8 1996/07/27 23:36:08 jimz
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* Solaris port of simulator
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*
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* Revision 1.7 1996/06/03 23:28:26 jimz
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* more bugfixes
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* check in tree to sync for IPDS runs with current bugfixes
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* there still may be a problem with threads in the script test
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* getting I/Os stuck- not trivially reproducible (runs ~50 times
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* in a row without getting stuck)
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*
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* Revision 1.6 1996/06/02 17:31:48 jimz
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* Moved a lot of global stuff into array structure, where it belongs.
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* Fixed up paritylogging, pss modules in this manner. Some general
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* code cleanup. Removed lots of dead code, some dead files.
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*
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* Revision 1.5 1996/05/31 22:26:54 jimz
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* fix a lot of mapping problems, memory allocation problems
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* found some weird lock issues, fixed 'em
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* more code cleanup
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*
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* Revision 1.4 1996/05/27 18:56:37 jimz
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* more code cleanup
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* better typing
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* compiles in all 3 environments
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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 1996/05/18 19:56:21 jimz
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* Initial revision
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*
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*/
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#ifndef _RF__RF_PQ_H_
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#define _RF__RF_PQ_H_
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#include "rf_archs.h"
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extern RF_RedFuncs_t rf_pFuncs;
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extern RF_RedFuncs_t rf_pRecoveryFuncs;
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int rf_RegularONPFunc(RF_DagNode_t *node);
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int rf_SimpleONPFunc(RF_DagNode_t *node);
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int rf_RecoveryPFunc(RF_DagNode_t *node);
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int rf_RegularPFunc(RF_DagNode_t *node);
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#if (RF_INCLUDE_DECL_PQ > 0) || (RF_INCLUDE_RAID6 > 0)
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extern RF_RedFuncs_t rf_qFuncs;
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extern RF_RedFuncs_t rf_qRecoveryFuncs;
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extern RF_RedFuncs_t rf_pqRecoveryFuncs;
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void rf_PQDagSelect(RF_Raid_t *raidPtr, RF_IoType_t type,
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RF_AccessStripeMap_t *asmap, RF_VoidFuncPtr *createFunc);
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RF_CREATE_DAG_FUNC_DECL(rf_PQCreateLargeWriteDAG);
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int rf_RegularONQFunc(RF_DagNode_t *node);
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int rf_SimpleONQFunc(RF_DagNode_t *node);
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RF_CREATE_DAG_FUNC_DECL(rf_PQCreateSmallWriteDAG);
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int rf_RegularPQFunc(RF_DagNode_t *node);
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int rf_RegularQFunc(RF_DagNode_t *node);
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void rf_Degraded_100_PQFunc(RF_DagNode_t *node);
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int rf_RecoveryQFunc(RF_DagNode_t *node);
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int rf_RecoveryPQFunc(RF_DagNode_t *node);
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void rf_PQ_DegradedWriteQFunc(RF_DagNode_t *node);
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void rf_IncQ(unsigned long *dest, unsigned long *buf, unsigned length,
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unsigned coeff);
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void rf_PQ_recover(unsigned long *pbuf, unsigned long *qbuf, unsigned long *abuf,
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unsigned long *bbuf, unsigned length, unsigned coeff_a, unsigned coeff_b);
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#endif /* (RF_INCLUDE_DECL_PQ > 0) || (RF_INCLUDE_RAID6 > 0) */
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#endif /* !_RF__RF_PQ_H_ */
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