xref: /src/sys/dev/raidframe/rf_map.h

/*	$NetBSD: rf_map.h,v 1.2 1999/01/26 02:33:58 oster Exp $	*/
/*
 * Copyright (c) 1995 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Author: Mark Holland
 *
 * 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 (at) 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_map.h */

#ifndef _RF__RF_MAP_H_
#define _RF__RF_MAP_H_

#include "rf_types.h"
#include "rf_alloclist.h"
#include "rf_raid.h"

/* mapping structure allocation and free routines */
RF_AccessStripeMapHeader_t *rf_MapAccess(RF_Raid_t *raidPtr,
	RF_RaidAddr_t raidAddress, RF_SectorCount_t numBlocks,
	caddr_t buffer, int remap);

void rf_MarkFailuresInASMList(RF_Raid_t *raidPtr,
	RF_AccessStripeMapHeader_t *asm_h);

RF_AccessStripeMap_t *rf_DuplicateASM(RF_AccessStripeMap_t *asmap);

RF_PhysDiskAddr_t *rf_DuplicatePDA(RF_PhysDiskAddr_t *pda);

int rf_ConfigureMapModule(RF_ShutdownList_t **listp);

RF_AccessStripeMapHeader_t *rf_AllocAccessStripeMapHeader(void);

void rf_FreeAccessStripeMapHeader(RF_AccessStripeMapHeader_t *p);

RF_PhysDiskAddr_t *rf_AllocPhysDiskAddr(void);

RF_PhysDiskAddr_t *rf_AllocPDAList(int count);

void rf_FreePhysDiskAddr(RF_PhysDiskAddr_t *p);

RF_AccessStripeMap_t *rf_AllocAccessStripeMapComponent(void);

RF_AccessStripeMap_t *rf_AllocASMList(int count);

void rf_FreeAccessStripeMapComponent(RF_AccessStripeMap_t *p);

void rf_FreeAccessStripeMap(RF_AccessStripeMapHeader_t *hdr);

int rf_CheckStripeForFailures(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);

int rf_NumFailedDataUnitsInStripe(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);

void rf_PrintAccessStripeMap(RF_AccessStripeMapHeader_t *asm_h);

void rf_PrintFullAccessStripeMap(RF_AccessStripeMapHeader_t *asm_h, int prbuf);

void rf_PrintRaidAddressInfo(RF_Raid_t *raidPtr, RF_RaidAddr_t raidAddr,
	RF_SectorCount_t numBlocks);

void rf_ASMParityAdjust(RF_PhysDiskAddr_t *toAdjust,
	RF_StripeNum_t startAddrWithinStripe, RF_SectorNum_t endAddress,
	RF_RaidLayout_t *layoutPtr, RF_AccessStripeMap_t *asm_p);

void rf_ASMCheckStatus(RF_Raid_t *raidPtr, RF_PhysDiskAddr_t *pda_p,
	RF_AccessStripeMap_t *asm_p, RF_RaidDisk_t **disks, int parity);

#endif /* !_RF__RF_MAP_H_ */