1 /*	$NetBSD: rf_chaindecluster.h,v 1.7 2005/12/11 12:23:37 christos 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 
37 int
38 rf_ConfigureChainDecluster(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr,
39     RF_Config_t * cfgPtr);
40 RF_ReconUnitCount_t rf_GetNumSpareRUsChainDecluster(RF_Raid_t * raidPtr);
41 void
42 rf_MapSectorChainDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
43     RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
44 void
45 rf_MapParityChainDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
46     RF_RowCol_t * col, RF_SectorNum_t * diskSector, int remap);
47 void
48 rf_IdentifyStripeChainDecluster(RF_Raid_t * raidPtr, RF_RaidAddr_t addr,
49     RF_RowCol_t ** diskids);
50 void
51 rf_MapSIDToPSIDChainDecluster(RF_RaidLayout_t * layoutPtr,
52     RF_StripeNum_t stripeID, RF_StripeNum_t * psID,
53     RF_ReconUnitNum_t * which_ru);
54 void
55 rf_RAIDCDagSelect(RF_Raid_t * raidPtr, RF_IoType_t type,
56     RF_AccessStripeMap_t * asmap,
57     RF_VoidFuncPtr *);
58 #if 0
59 void    (**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