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freebsd/sys/dev/raidframe/rf_interdecluster.h
Scott Long f9d186edc8 After much delay and anticipation, welcome RAIDFrame into the FreeBSD
world.  This should be considered highly experimental.

Approved-by:	re
2002-10-20 08:17:39 +00:00

61 lines
2.3 KiB
C

/* $FreeBSD$ */
/* $NetBSD: rf_interdecluster.h,v 1.3 1999/02/05 00:06:12 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Khalil Amiri
*
* 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 Software.Distribution@CS.CMU.EDU
* 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.
*/
/* rf_interdecluster.h
* header file for Interleaved Declustering
*/
#ifndef _RF__RF_INTERDECLUSTER_H_
#define _RF__RF_INTERDECLUSTER_H_
int
rf_ConfigureInterDecluster(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr,
RF_Config_t * cfgPtr);
int rf_GetDefaultNumFloatingReconBuffersInterDecluster(RF_Raid_t * raidPtr);
RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitInterDecluster(RF_Raid_t * raidPtr);
RF_ReconUnitCount_t rf_GetNumSpareRUsInterDecluster(RF_Raid_t * raidPtr);
void
rf_MapSectorInterDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
RF_RowCol_t * row, RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
void
rf_MapParityInterDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
RF_RowCol_t * row, RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
void
rf_IdentifyStripeInterDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t addr,
RF_RowCol_t ** diskids, RF_RowCol_t * outRow);
void
rf_MapSIDToPSIDInterDecluster(RF_RaidLayout_t * layoutPtr,
RF_StripeNum_t stripeID, RF_StripeNum_t * psID,
RF_ReconUnitNum_t * which_ru);
void
rf_RAIDIDagSelect(RF_Raid_t * raidPtr, RF_IoType_t type,
RF_AccessStripeMap_t * asmap, RF_VoidFuncPtr * createFunc);
#endif /* !_RF__RF_INTERDECLUSTER_H_ */