| 1 | /* $NetBSD: rf_raid5.h,v 1.6 2005/12/11 12:23:37 christos 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_ */ |
| 57 | |