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Diffstat (limited to 'sys/dev/raidframe/rf_chaindecluster.h')
| -rw-r--r-- | sys/dev/raidframe/rf_chaindecluster.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_chaindecluster.h b/sys/dev/raidframe/rf_chaindecluster.h new file mode 100644 index 00000000000..52a94deac2f --- /dev/null +++ b/sys/dev/raidframe/rf_chaindecluster.h @@ -0,0 +1,123 @@ +/* $OpenBSD: rf_chaindecluster.h,v 1.1 1999/01/11 14:29:01 niklas Exp $ */ +/* $NetBSD: rf_chaindecluster.h,v 1.1 1998/11/13 04:20:26 oster Exp $ */ +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Khalil Amiri + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +/* rf_chaindecluster.h + * header file for Chained Declustering + */ + +/* + * : + * Log: rf_chaindecluster.h,v + * Revision 1.14 1996/07/29 14:05:12 jimz + * fix numPUs/numRUs confusion (everything is now numRUs) + * clean up some commenting, return values + * + * Revision 1.13 1996/07/22 19:52:16 jimz + * switched node params to RF_DagParam_t, a union of + * a 64-bit int and a void *, for better portability + * attempted hpux port, but failed partway through for + * lack of a single C compiler capable of compiling all + * source files + * + * Revision 1.12 1996/06/10 11:55:47 jimz + * Straightened out some per-array/not-per-array distinctions, fixed + * a couple bugs related to confusion. Added shutdown lists. Removed + * layout shutdown function (now subsumed by shutdown lists). + * + * Revision 1.11 1996/06/07 22:26:27 jimz + * type-ify which_ru (RF_ReconUnitNum_t) + * + * Revision 1.10 1996/06/07 21:33:04 jimz + * begin using consistent types for sector numbers, + * stripe numbers, row+col numbers, recon unit numbers + * + * Revision 1.9 1996/06/03 23:28:26 jimz + * more bugfixes + * check in tree to sync for IPDS runs with current bugfixes + * there still may be a problem with threads in the script test + * getting I/Os stuck- not trivially reproducible (runs ~50 times + * in a row without getting stuck) + * + * Revision 1.8 1996/05/31 22:26:54 jimz + * fix a lot of mapping problems, memory allocation problems + * found some weird lock issues, fixed 'em + * more code cleanup + * + * Revision 1.7 1996/05/27 18:56:37 jimz + * more code cleanup + * better typing + * compiles in all 3 environments + * + * Revision 1.6 1996/05/23 21:46:35 jimz + * checkpoint in code cleanup (release prep) + * lots of types, function names have been fixed + * + * Revision 1.5 1996/05/18 19:51:34 jimz + * major code cleanup- fix syntax, make some types consistent, + * add prototypes, clean out dead code, et cetera + * + * Revision 1.4 1996/02/22 16:45:59 amiri + * added declaration of dag selection function + * + * Revision 1.3 1995/12/01 15:16:56 root + * added copyright info + * + * Revision 1.2 1995/11/17 19:55:21 amiri + * prototyped MapParityChainDecluster + */ + +#ifndef _RF__RF_CHAINDECLUSTER_H_ +#define _RF__RF_CHAINDECLUSTER_H_ + +int rf_ConfigureChainDecluster(RF_ShutdownList_t **listp, RF_Raid_t *raidPtr, + RF_Config_t *cfgPtr); +RF_ReconUnitCount_t rf_GetNumSpareRUsChainDecluster(RF_Raid_t *raidPtr); +void rf_MapSectorChainDecluster(RF_Raid_t *raidPtr, RF_RaidAddr_t raidSector, + RF_RowCol_t *row, RF_RowCol_t *col, RF_SectorNum_t *diskSector, int remap); +void rf_MapParityChainDecluster(RF_Raid_t *raidPtr, RF_RaidAddr_t raidSector, + RF_RowCol_t *row, RF_RowCol_t *col, RF_SectorNum_t *diskSector, int remap); +void rf_IdentifyStripeChainDecluster(RF_Raid_t *raidPtr, RF_RaidAddr_t addr, + RF_RowCol_t **diskids, RF_RowCol_t *outRow); +void rf_MapSIDToPSIDChainDecluster(RF_RaidLayout_t *layoutPtr, + RF_StripeNum_t stripeID, RF_StripeNum_t *psID, + RF_ReconUnitNum_t *which_ru); +void rf_RAIDCDagSelect(RF_Raid_t *raidPtr, RF_IoType_t type, + RF_AccessStripeMap_t *asmap, + RF_VoidFuncPtr *); +#if 0 + void (**createFunc)(RF_Raid_t *, + RF_AccessStripeMap_t *, + RF_DagHeader_t *, + void *, + RF_RaidAccessFlags_t, + RF_AllocListElem_t *) +); +#endif + +#endif /* !_RF__RF_CHAINDECLUSTER_H_ */ |