1999-01-26 05:33:49 +03:00
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/* $NetBSD: rf_map.h,v 1.2 1999/01/26 02:33:58 oster Exp $ */
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1998-11-13 07:20:26 +03:00
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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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/* rf_map.h */
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#ifndef _RF__RF_MAP_H_
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#define _RF__RF_MAP_H_
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#include "rf_types.h"
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#include "rf_alloclist.h"
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#include "rf_raid.h"
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/* mapping structure allocation and free routines */
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RF_AccessStripeMapHeader_t *rf_MapAccess(RF_Raid_t *raidPtr,
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RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks,
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caddr_t buffer, int remap);
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void rf_MarkFailuresInASMList(RF_Raid_t *raidPtr,
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RF_AccessStripeMapHeader_t *asm_h);
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RF_AccessStripeMap_t *rf_DuplicateASM(RF_AccessStripeMap_t *asmap);
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RF_PhysDiskAddr_t *rf_DuplicatePDA(RF_PhysDiskAddr_t *pda);
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int rf_ConfigureMapModule(RF_ShutdownList_t **listp);
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RF_AccessStripeMapHeader_t *rf_AllocAccessStripeMapHeader(void);
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void rf_FreeAccessStripeMapHeader(RF_AccessStripeMapHeader_t *p);
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RF_PhysDiskAddr_t *rf_AllocPhysDiskAddr(void);
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RF_PhysDiskAddr_t *rf_AllocPDAList(int count);
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void rf_FreePhysDiskAddr(RF_PhysDiskAddr_t *p);
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RF_AccessStripeMap_t *rf_AllocAccessStripeMapComponent(void);
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RF_AccessStripeMap_t *rf_AllocASMList(int count);
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void rf_FreeAccessStripeMapComponent(RF_AccessStripeMap_t *p);
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void rf_FreeAccessStripeMap(RF_AccessStripeMapHeader_t *hdr);
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int rf_CheckStripeForFailures(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);
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int rf_NumFailedDataUnitsInStripe(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);
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void rf_PrintAccessStripeMap(RF_AccessStripeMapHeader_t *asm_h);
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void rf_PrintFullAccessStripeMap(RF_AccessStripeMapHeader_t *asm_h, int prbuf);
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void rf_PrintRaidAddressInfo(RF_Raid_t *raidPtr, RF_RaidAddr_t raidAddr,
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RF_SectorCount_t numBlocks);
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void rf_ASMParityAdjust(RF_PhysDiskAddr_t *toAdjust,
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RF_StripeNum_t startAddrWithinStripe, RF_SectorNum_t endAddress,
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RF_RaidLayout_t *layoutPtr, RF_AccessStripeMap_t *asm_p);
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void rf_ASMCheckStatus(RF_Raid_t *raidPtr, RF_PhysDiskAddr_t *pda_p,
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RF_AccessStripeMap_t *asm_p, RF_RaidDisk_t **disks, int parity);
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#endif /* !_RF__RF_MAP_H_ */
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