sys/dev/raidframe/rf_paritylogging.h

   1 /*      $NetBSD: rf_paritylogging.h,v 1.3.42.4 2005/03/04 16:50:07 skrll Exp $  */
   2 /*
   3  * Copyright (c) 1995 Carnegie-Mellon University.
   4  * All rights reserved.
   5  *
   6  * Author: William V. Courtright II
   7  *
   8  * Permission to use, copy, modify and distribute this software and
   9  * its documentation is hereby granted, provided that both the copyright
  10  * notice and this permission notice appear in all copies of the
  11  * software, derivative works or modified versions, and any portions
  12  * thereof, and that both notices appear in supporting documentation.
  13  *
  14  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  15  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  16  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  17  *
  18  * Carnegie Mellon requests users of this software to return to
  19  *
  20  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  21  *  School of Computer Science
  22  *  Carnegie Mellon University
  23  *  Pittsburgh PA 15213-3890
  24  *
  25  * any improvements or extensions that they make and grant Carnegie the
  26  * rights to redistribute these changes.
  27  */
  28
  29 /* header file for Parity Logging */
  30
  31 #ifndef _RF__RF_PARITYLOGGING_H_
  32 #define _RF__RF_PARITYLOGGING_H_
  33
  34 int
  35 rf_ConfigureParityLogging(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr,
  36     RF_Config_t * cfgPtr);
  37 int     rf_GetDefaultNumFloatingReconBuffersParityLogging(RF_Raid_t * raidPtr);
  38 RF_HeadSepLimit_t rf_GetDefaultHeadSepLimitParityLogging(RF_Raid_t * raidPtr);
  39 RF_RegionId_t
  40 rf_MapRegionIDParityLogging(RF_Raid_t * raidPtr,
  41     RF_SectorNum_t address);
  42 void
  43 rf_MapSectorParityLogging(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
  44     RF_RowCol_t * col, RF_SectorNum_t * diskSector,
  45     int remap);
  46 void
  47 rf_MapParityParityLogging(RF_Raid_t * raidPtr, RF_RaidAddr_t raidSector,
  48     RF_RowCol_t * col, RF_SectorNum_t * diskSector,
  49     int remap);
  50 void
  51 rf_MapLogParityLogging(RF_Raid_t * raidPtr, RF_RegionId_t regionID,
  52     RF_SectorNum_t regionOffset, RF_RowCol_t * col,
  53     RF_SectorNum_t * startSector);
  54 void
  55 rf_MapRegionParity(RF_Raid_t * raidPtr, RF_RegionId_t regionID,
  56     RF_RowCol_t * col, RF_SectorNum_t * startSector,
  57     RF_SectorCount_t * numSector);
  58 void
  59 rf_IdentifyStripeParityLogging(RF_Raid_t * raidPtr, RF_RaidAddr_t addr,
  60     RF_RowCol_t ** diskids);
  61 void
  62 rf_MapSIDToPSIDParityLogging(RF_RaidLayout_t * layoutPtr,
  63     RF_StripeNum_t stripeID, RF_StripeNum_t * psID,
  64     RF_ReconUnitNum_t * which_ru);
  65 void
  66 rf_ParityLoggingDagSelect(RF_Raid_t * raidPtr, RF_IoType_t type,
  67     RF_AccessStripeMap_t * asmap, RF_VoidFuncPtr * createFunc);
  68
  69 #endif                          /* !_RF__RF_PARITYLOGGING_H_ */