NetBSD/sys/dev/raidframe/rf_paritylogging.h

137 lines
5.0 KiB
C

/* $NetBSD: rf_paritylogging.h,v 1.1 1998/11/13 04:20:32 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: William V. Courtright II
*
* 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.
*/
/* header file for Parity Logging */
/*
* :
* Log: rf_paritylogging.h,v
* Revision 1.22 1996/07/27 23:36:08 jimz
* Solaris port of simulator
*
* Revision 1.21 1996/07/13 00:00:59 jimz
* sanitized generalized reconstruction architecture
* cleaned up head sep, rbuf problems
*
* Revision 1.20 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 1.19 1996/06/07 22:26:27 jimz
* type-ify which_ru (RF_ReconUnitNum_t)
*
* Revision 1.18 1996/06/07 21:33:04 jimz
* begin using consistent types for sector numbers,
* stripe numbers, row+col numbers, recon unit numbers
*
* Revision 1.17 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 1.16 1996/06/02 17:31:48 jimz
* Moved a lot of global stuff into array structure, where it belongs.
* Fixed up paritylogging, pss modules in this manner. Some general
* code cleanup. Removed lots of dead code, some dead files.
*
* Revision 1.15 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 1.14 1996/05/27 18:56:37 jimz
* more code cleanup
* better typing
* compiles in all 3 environments
*
* Revision 1.13 1996/05/24 01:59:45 jimz
* another checkpoint in code cleanup for release
* time to sync kernel tree
*
* Revision 1.12 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 1.11 1995/12/06 20:56:25 wvcii
* added prototypes
*
* Revision 1.10 1995/11/30 16:06:58 wvcii
* added copyright info
*
* Revision 1.9 1995/11/17 19:53:08 wvcii
* fixed bug in MapParityRegion prototype
*
* Revision 1.8 1995/11/17 19:09:24 wvcii
* added prototypint to MapParity
*
* Revision 1.7 1995/11/07 15:28:17 wvcii
* changed ParityLoggingDagSelect prototype
* function no longer generates numHdrSucc, numTermAnt
*
* Revision 1.6 1995/07/07 00:16:50 wvcii
* this version free from deadlock, fails parity verification
*
* Revision 1.5 1995/06/23 13:39:44 robby
* updeated to prototypes in rf_layout.h
*
*/
#ifndef _RF__RF_PARITYLOGGING_H_
#define _RF__RF_PARITYLOGGING_H_
int rf_ConfigureParityLogging(RF_ShutdownList_t **listp, RF_Raid_t *raidPtr,
RF_Config_t *cfgPtr);
int rf_GetDefaultNumFloatingReconBuffersParityLogging(RF_Raid_t *raidPtr);
RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitParityLogging(RF_Raid_t *raidPtr);
RF_RegionId_t rf_MapRegionIDParityLogging(RF_Raid_t *raidPtr,
RF_SectorNum_t address);
void rf_MapSectorParityLogging(RF_Raid_t *raidPtr, RF_RaidAddr_t raidSector,
RF_RowCol_t *row, RF_RowCol_t *col, RF_SectorNum_t *diskSector,
int remap);
void rf_MapParityParityLogging(RF_Raid_t *raidPtr, RF_RaidAddr_t raidSector,
RF_RowCol_t *row, RF_RowCol_t *col, RF_SectorNum_t *diskSector,
int remap);
void rf_MapLogParityLogging(RF_Raid_t *raidPtr, RF_RegionId_t regionID,
RF_SectorNum_t regionOffset, RF_RowCol_t *row, RF_RowCol_t *col,
RF_SectorNum_t *startSector);
void rf_MapRegionParity(RF_Raid_t *raidPtr, RF_RegionId_t regionID,
RF_RowCol_t *row, RF_RowCol_t *col, RF_SectorNum_t *startSector,
RF_SectorCount_t *numSector);
void rf_IdentifyStripeParityLogging(RF_Raid_t *raidPtr, RF_RaidAddr_t addr,
RF_RowCol_t **diskids, RF_RowCol_t *outRow);
void rf_MapSIDToPSIDParityLogging(RF_RaidLayout_t *layoutPtr,
RF_StripeNum_t stripeID, RF_StripeNum_t *psID,
RF_ReconUnitNum_t *which_ru);
void rf_ParityLoggingDagSelect(RF_Raid_t *raidPtr, RF_IoType_t type,
RF_AccessStripeMap_t *asmap, RF_VoidFuncPtr *createFunc);
#endif /* !_RF__RF_PARITYLOGGING_H_ */