Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/raidframe/rf_raid5.h
Version:
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1 /* $NetBSD: rf_raid5.h,v 1.4 2003/12/29 02:38:18 oster Exp $ */ 2 /* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Mark Holland 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29 /* rf_raid5.h - header file for RAID Level 5 */ 30 31 #ifndef _RF__RF_RAID5_H_ 32 #define _RF__RF_RAID5_H_ 33 34 int 35 rf_ConfigureRAID5(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr, 36 RF_Config_t * cfgPtr); 37 int rf_GetDefaultNumFloatingReconBuffersRAID5(RF_Raid_t * raidPtr); 38 RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitRAID5(RF_Raid_t * raidPtr); 39 void 40 rf_MapSectorRAID5(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector, 41 RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap); 42 void 43 rf_MapParityRAID5(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector, 44 RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap); 45 void 46 rf_IdentifyStripeRAID5(RF_Raid_t * raidPtr, RF_RaidAddr_t addr, 47 RF_RowCol_t ** diskids); 48 void 49 rf_MapSIDToPSIDRAID5(RF_RaidLayout_t * layoutPtr, 50 RF_StripeNum_t stripeID, RF_StripeNum_t * psID, 51 RF_ReconUnitNum_t * which_ru); 52 void 53 rf_RaidFiveDagSelect(RF_Raid_t * raidPtr, RF_IoType_t type, 54 RF_AccessStripeMap_t * asmap, RF_VoidFuncPtr * createFunc); 55 56 #endif /* !_RF__RF_RAID5_H_ */
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