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 | |