NetBSD/sys/dev/raidframe/rf_reconutil.h

96 lines
3.4 KiB
C

/* $NetBSD: rf_reconutil.h,v 1.1 1998/11/13 04:20:34 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_reconutil.h -- header file for reconstruction utilities
************************************************************/
/* :
* Log: rf_reconutil.h,v
* Revision 1.10 1996/07/15 05:40:41 jimz
* some recon datastructure cleanup
* better handling of multiple failures
* added undocumented double-recon test
*
* Revision 1.9 1996/07/13 00:00:59 jimz
* sanitized generalized reconstruction architecture
* cleaned up head sep, rbuf problems
*
* 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 1996/06/03 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 1.5 1996/05/27 18:56:37 jimz
* more code cleanup
* better typing
* compiles in all 3 environments
*
* Revision 1.4 1996/05/23 21:46:35 jimz
* checkpoint in code cleanup (release prep)
* lots of types, function names have been fixed
*
* Revision 1.3 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 1.2 1995/12/06 15:06:47 root
* added copyright info
*
*/
#ifndef _RF__RF_RECONUTIL_H_
#define _RF__RF_RECONUTIL_H_
#include "rf_types.h"
#include "rf_reconstruct.h"
RF_ReconCtrl_t *rf_MakeReconControl(RF_RaidReconDesc_t *reconDesc,
RF_RowCol_t frow, RF_RowCol_t fcol, RF_RowCol_t srow, RF_RowCol_t scol);
void rf_FreeReconControl(RF_Raid_t *raidPtr, RF_RowCol_t row);
RF_HeadSepLimit_t rf_GetDefaultHeadSepLimit(RF_Raid_t *raidPtr);
int rf_GetDefaultNumFloatingReconBuffers(RF_Raid_t *raidPtr);
RF_ReconBuffer_t *rf_MakeReconBuffer(RF_Raid_t *raidPtr, RF_RowCol_t row,
RF_RowCol_t col, RF_RbufType_t type);
void rf_FreeReconBuffer(RF_ReconBuffer_t *rbuf);
void rf_CheckFloatingRbufCount(RF_Raid_t *raidPtr, int dolock);
#endif /* !_RF__RF_RECONUTIL_H_ */