diff options
Diffstat (limited to 'sys/dev/raidframe/rf_reconmap.h')
| -rw-r--r-- | sys/dev/raidframe/rf_reconmap.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_reconmap.h b/sys/dev/raidframe/rf_reconmap.h new file mode 100644 index 0000000..2fee059 --- /dev/null +++ b/sys/dev/raidframe/rf_reconmap.h @@ -0,0 +1,86 @@ +/* $FreeBSD$ */ +/* $NetBSD: rf_reconmap.h,v 1.3 1999/02/05 00:06:16 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 + ******************************************************************************/ + +#ifndef _RF__RF_RECONMAP_H_ +#define _RF__RF_RECONMAP_H_ + +#include <dev/raidframe/rf_types.h> +#include <dev/raidframe/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_ */ |
