1/* $NetBSD: rf_interdecluster.h,v 1.6 2006/04/26 17:08:48 oster Exp $ */
2/*
3 * Copyright (c) 1995 Carnegie-Mellon University.
4 * All rights reserved.
5 *
6 * Author: Khalil Amiri
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_interdecluster.h
30 * header file for Interleaved Declustering
31 */
32
33#ifndef _RF__RF_INTERDECLUSTER_H_
34#define _RF__RF_INTERDECLUSTER_H_
35
36int
37rf_ConfigureInterDecluster(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr,
38 RF_Config_t * cfgPtr);
39int rf_GetDefaultNumFloatingReconBuffersInterDecluster(RF_Raid_t * raidPtr);
40RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitInterDecluster(RF_Raid_t * raidPtr);
41RF_ReconUnitCount_t rf_GetNumSpareRUsInterDecluster(RF_Raid_t * raidPtr);
42void
43rf_MapSectorInterDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
44 RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
45void
46rf_MapParityInterDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
47 RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
48void
49rf_IdentifyStripeInterDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t addr,
50 RF_RowCol_t ** diskids);
51void
52rf_MapSIDToPSIDInterDecluster(RF_RaidLayout_t * layoutPtr,
53 RF_StripeNum_t stripeID, RF_StripeNum_t * psID,
54 RF_ReconUnitNum_t * which_ru);
55void
56rf_RAIDIDagSelect(RF_Raid_t * raidPtr, RF_IoType_t type,
57 RF_AccessStripeMap_t * asmap, RF_VoidFuncPtr * createFunc);
58
59#endif /* !_RF__RF_INTERDECLUSTER_H_ */
60