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/* $OpenBSD: rf_reconmap.h,v 1.1 1999/01/11 14:29:46 niklas Exp $ */
/* $NetBSD: rf_reconmap.h,v 1.1 1998/11/13 04:20:33 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Mark Holland
*
* 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_reconMap.h -- Header file describing reconstruction status data structure
******************************************************************************/
/* :
* Log: rf_reconmap.h,v
* Revision 1.10 1996/08/01 15:59:25 jimz
* minor cleanup
*
* Revision 1.9 1996/06/09 02:36:46 jimz
* lots of little crufty cleanup- fixup whitespace
* issues, comment #ifdefs, improve typing in some
* places (esp size-related)
*
* Revision 1.8 1996/06/07 21:33:04 jimz
* begin using consistent types for sector numbers,
* stripe numbers, row+col numbers, recon unit numbers
*
* Revision 1.7 1996/06/05 18:06:02 jimz
* Major code cleanup. The Great Renaming is now done.
* Better modularity. Better typing. Fixed a bunch of
* synchronization bugs. Made a lot of global stuff
* per-desc or per-array. Removed dead code.
*
* 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 1995/12/06 15:04:01 root
* added copyright info
*
*/
#ifndef _RF__RF_RECONMAP_H_
#define _RF__RF_RECONMAP_H_
#include "rf_types.h"
#include "rf_threadstuff.h"
/*
* Main reconstruction status descriptor. size and maxsize are used for
* monitoring only: they have no function for reconstruction.
*/
struct RF_ReconMap_s {
RF_SectorCount_t sectorsPerReconUnit; /* sectors per reconstruct unit */
RF_SectorCount_t sectorsInDisk; /* total sectors in disk */
RF_SectorCount_t unitsLeft; /* recon units left to recon */
RF_ReconUnitCount_t totalRUs; /* total recon units on disk */
RF_ReconUnitCount_t spareRUs; /* total number of spare RUs on failed disk */
RF_StripeCount_t totalParityStripes; /* total number of parity stripes in array */
u_int size; /* overall size of this structure */
u_int maxSize; /* maximum size so far */
RF_ReconMapListElem_t **status; /* array of ptrs to list elements */
RF_DECLARE_MUTEX(mutex)
};
/* a list element */
struct RF_ReconMapListElem_s {
RF_SectorNum_t startSector; /* bounding sect nums on this block */
RF_SectorNum_t stopSector;
RF_ReconMapListElem_t *next; /* next element in list */
};
RF_ReconMap_t *rf_MakeReconMap(RF_Raid_t *raidPtr, RF_SectorCount_t ru_sectors,
RF_SectorCount_t disk_sectors, RF_ReconUnitCount_t spareUnitsPerDisk);
void rf_ReconMapUpdate(RF_Raid_t *raidPtr, RF_ReconMap_t *mapPtr,
RF_SectorNum_t startSector, RF_SectorNum_t stopSector);
void rf_FreeReconMap(RF_ReconMap_t *mapPtr);
int rf_CheckRUReconstructed(RF_ReconMap_t *mapPtr, RF_SectorNum_t startSector);
RF_ReconUnitCount_t rf_UnitsLeftToReconstruct(RF_ReconMap_t *mapPtr);
void rf_PrintReconMap(RF_Raid_t *raidPtr, RF_ReconMap_t *mapPtr,
RF_RowCol_t frow, RF_RowCol_t fcol);
void rf_PrintReconSchedule(RF_ReconMap_t *mapPtr, struct timeval *starttime);
#endif /* !_RF__RF_RECONMAP_H_ */
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