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/* $OpenBSD: rf_copyback.h,v 1.1 1999/01/11 14:29:03 niklas Exp $ */
/* $NetBSD: rf_copyback.h,v 1.1 1998/11/13 04:20:27 oster Exp $ */
/*
* rf_copyback.h
*/
/*
* Copyright (c) 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Jim Zelenka
*
* 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.
*/
/*
* :
* Log: rf_copyback.h,v
* Revision 1.5 1996/07/11 19:08:00 jimz
* generalize reconstruction mechanism
* allow raid1 reconstructs via copyback (done with array
* quiesced, not online, therefore not disk-directed)
*
* Revision 1.4 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 1.3 1996/05/24 01:59:45 jimz
* another checkpoint in code cleanup for release
* time to sync kernel tree
*
* Revision 1.2 1996/05/23 21:46:35 jimz
* checkpoint in code cleanup (release prep)
* lots of types, function names have been fixed
*
* Revision 1.1 1996/05/18 19:55:02 jimz
* Initial revision
*
*/
#ifndef _RF__RF_COPYBACK_H_
#define _RF__RF_COPYBACK_H_
#include "rf_types.h"
typedef struct RF_CopybackDesc_s {
RF_Raid_t *raidPtr;
RF_RowCol_t frow;
RF_RowCol_t fcol;
RF_RowCol_t spRow;
RF_RowCol_t spCol;
int status;
RF_StripeNum_t stripeAddr;
RF_SectorCount_t sectPerSU;
RF_SectorCount_t sectPerStripe;
char *databuf;
RF_DiskQueueData_t *readreq;
RF_DiskQueueData_t *writereq;
struct timeval starttime;
#ifndef SIMULATE
RF_MCPair_t *mcpair;
#endif /* !SIMULATE */
} RF_CopybackDesc_t;
extern int rf_copyback_in_progress;
int rf_ConfigureCopyback(RF_ShutdownList_t **listp);
void rf_CopybackReconstructedData(RF_Raid_t *raidPtr);
void rf_ContinueCopyback(RF_CopybackDesc_t *desc);
#endif /* !_RF__RF_COPYBACK_H_ */
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