rf_evenodd.h

RAIDFrame是个非常好的磁盘阵列RAID仿真工具

/*
 * Copyright (c) 1995, 1996 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Author: Chang-Ming Wu
 *
 * 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  [e-mail]
 *  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.
 */

#ifndef _RF__RF_EVENODD_H_
#define _RF__RF_EVENODD_H_

/* extern declerations of the failure mode  functions.  */
int rf_ConfigureEvenOdd(RF_ShutdownList_t **shutdownListp, RF_Raid_t *raidPtr,
  RF_Config_t *cfgPtr);
int rf_GetDefaultNumFloatingReconBuffersEvenOdd(RF_Raid_t *raidPtr);
RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitEvenOdd(RF_Raid_t *raidPtr);
void rf_IdentifyStripeEvenOdd(RF_Raid_t *raidPtr, RF_RaidAddr_t addr,
  RF_RowCol_t **diskids, RF_RowCol_t *outrow);
void rf_MapParityEvenOdd(RF_Raid_t *raidPtr, RF_RaidAddr_t raidSector,
  RF_RowCol_t *row,  RF_RowCol_t *col, RF_SectorNum_t *diskSector, int remap);
void rf_MapEEvenOdd(RF_Raid_t *raidPtr, RF_RaidAddr_t raidSector,
  RF_RowCol_t *row, RF_RowCol_t *col, RF_SectorNum_t *diskSector, int remap);
void rf_EODagSelect(RF_Raid_t *raidPtr, RF_IoType_t type,
  RF_AccessStripeMap_t *asmap, RF_VoidFuncPtr *createFunc);
int rf_VerifyParityEvenOdd(RF_Raid_t *raidPtr, RF_RaidAddr_t raidAddr,
	RF_PhysDiskAddr_t *parityPDA, int correct_it, RF_RaidAccessFlags_t flags);

#endif /* !_RF__RF_EVENODD_H_ */