1 /* $OpenBSD: rf_raid5_rotatedspare.h,v 1.3 2002/12/16 07:01:05 tdeval Exp $ */
2 /* $NetBSD: rf_raid5_rotatedspare.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: Khalil Amiri
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 /*
32 * rf_raid5_rotatedspare.h
33 *
34 * Header file for RAID Level 5 with rotated sparing.
35 */
36
37 #ifndef _RF__RF_RAID5_ROTATEDSPARE_H_
38 #define _RF__RF_RAID5_ROTATEDSPARE_H_
39
40 int rf_ConfigureRAID5_RS(RF_ShutdownList_t **, RF_Raid_t *, RF_Config_t *);
41 RF_ReconUnitCount_t rf_GetNumSpareRUsRAID5_RS(RF_Raid_t *);
42 void rf_MapSectorRAID5_RS(RF_Raid_t *, RF_RaidAddr_t,
43 RF_RowCol_t *, RF_RowCol_t *, RF_SectorNum_t *, int);
44 void rf_MapParityRAID5_RS(RF_Raid_t *, RF_RaidAddr_t,
45 RF_RowCol_t *, RF_RowCol_t *, RF_SectorNum_t *, int);
46 void rf_IdentifyStripeRAID5_RS(RF_Raid_t *, RF_RaidAddr_t,
47 RF_RowCol_t **, RF_RowCol_t *);
48 void rf_MapSIDToPSIDRAID5_RS(RF_RaidLayout_t *,
49 RF_StripeNum_t, RF_StripeNum_t *, RF_ReconUnitNum_t *);
50
51 #endif /* !_RF__RF_RAID5_ROTATEDSPARE_H_ */