1 /* $OpenBSD: rf_raid4.h,v 1.3 2002/12/16 07:01:04 tdeval Exp $ */ 2 /* $NetBSD: rf_raid4.h,v 1.3 1999/02/05 00:06:16 oster Exp $ */ 3 4 /* 5 * Copyright (c) 1995 Carnegie-Mellon University. 6 * All rights reserved. 7 * 8 * Author: Rachad Youssef 9 * 10 * Permission to use, copy, modify and distribute this software and 11 * its documentation is hereby granted, provided that both the copyright 12 * notice and this permission notice appear in all copies of the 13 * software, derivative works or modified versions, and any portions 14 * thereof, and that both notices appear in supporting documentation. 15 * 16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 19 * 20 * Carnegie Mellon requests users of this software to return to 21 * 22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 23 * School of Computer Science 24 * Carnegie Mellon University 25 * Pittsburgh PA 15213-3890 26 * 27 * any improvements or extensions that they make and grant Carnegie the 28 * rights to redistribute these changes. 29 */ 30 31 /* rf_raid4.h -- Header file for RAID Level 4. */ 32 33 #ifndef _RF__RF_RAID4_H_ 34 #define _RF__RF_RAID4_H_ 35 36 int rf_ConfigureRAID4(RF_ShutdownList_t **, RF_Raid_t *, RF_Config_t *); 37 int rf_GetDefaultNumFloatingReconBuffersRAID4(RF_Raid_t *); 38 RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitRAID4(RF_Raid_t *); 39 void rf_MapSectorRAID4(RF_Raid_t *, RF_RaidAddr_t, 40 RF_RowCol_t *, RF_RowCol_t *, RF_SectorNum_t *, int); 41 void rf_MapParityRAID4(RF_Raid_t *, RF_RaidAddr_t, 42 RF_RowCol_t *, RF_RowCol_t *, RF_SectorNum_t *, int); 43 void rf_IdentifyStripeRAID4(RF_Raid_t *, RF_RaidAddr_t, 44 RF_RowCol_t **, RF_RowCol_t *); 45 void rf_MapSIDToPSIDRAID4(RF_RaidLayout_t *, 46 RF_StripeNum_t, RF_StripeNum_t *, RF_ReconUnitNum_t *); 47 void rf_RAID4DagSelect(RF_Raid_t *, RF_IoType_t, RF_AccessStripeMap_t *, 48 RF_VoidFuncPtr *); 49 50 #endif /* !_RF__RF_RAID4_H_ */ 51