1/*	$NetBSD: rf_chaindecluster.h,v 1.4.24.4 2005/03/04 16:50:05 skrll 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_chaindecluster.h
30 * header file for Chained Declustering
31 */
32
33
34#ifndef _RF__RF_CHAINDECLUSTER_H_
35#define _RF__RF_CHAINDECLUSTER_H_
36
37int
38rf_ConfigureChainDecluster(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr,
39    RF_Config_t * cfgPtr);
40RF_ReconUnitCount_t rf_GetNumSpareRUsChainDecluster(RF_Raid_t * raidPtr);
41void
42rf_MapSectorChainDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
43    RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
44void
45rf_MapParityChainDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
46    RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
47void
48rf_IdentifyStripeChainDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t addr,
49    RF_RowCol_t ** diskids);
50void
51rf_MapSIDToPSIDChainDecluster(RF_RaidLayout_t * layoutPtr,
52    RF_StripeNum_t stripeID, RF_StripeNum_t * psID,
53    RF_ReconUnitNum_t * which_ru);
54void
55rf_RAIDCDagSelect(RF_Raid_t * raidPtr, RF_IoType_t type,
56    RF_AccessStripeMap_t * asmap,
57    RF_VoidFuncPtr *);
58#if 0
59void    (**createFunc) (RF_Raid_t *,
60            RF_AccessStripeMap_t *,
61            RF_DagHeader_t *,
62            void *,
63            RF_RaidAccessFlags_t,
64            RF_AllocListElem_t *);
65#endif
66
67#endif				/* !_RF__RF_CHAINDECLUSTER_H_ */
68