Home | History | Annotate | Line # | Download | only in raidframe
rf_chaindecluster.h revision 1.1 
      1 /*	$NetBSD: rf_chaindecluster.h,v 1.1 1998/11/13 04:20:26 oster Exp $	*/
      2 /*
      3  * Copyright (c) 1995 Carnegie-Mellon University.
      4  * All rights reserved.
      5  *
      6  * Author: Khalil Amiri
      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 (at) 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 /* rf_chaindecluster.h
     30  * header file for Chained Declustering
     31  */
     32 
     33 /*
     34  * :
     35  * Log: rf_chaindecluster.h,v
     36  * Revision 1.14  1996/07/29 14:05:12  jimz
     37  * fix numPUs/numRUs confusion (everything is now numRUs)
     38  * clean up some commenting, return values
     39  *
     40  * Revision 1.13  1996/07/22  19:52:16  jimz
     41  * switched node params to RF_DagParam_t, a union of
     42  * a 64-bit int and a void *, for better portability
     43  * attempted hpux port, but failed partway through for
     44  * lack of a single C compiler capable of compiling all
     45  * source files
     46  *
     47  * Revision 1.12  1996/06/10  11:55:47  jimz
     48  * Straightened out some per-array/not-per-array distinctions, fixed
     49  * a couple bugs related to confusion. Added shutdown lists. Removed
     50  * layout shutdown function (now subsumed by shutdown lists).
     51  *
     52  * Revision 1.11  1996/06/07  22:26:27  jimz
     53  * type-ify which_ru (RF_ReconUnitNum_t)
     54  *
     55  * Revision 1.10  1996/06/07  21:33:04  jimz
     56  * begin using consistent types for sector numbers,
     57  * stripe numbers, row+col numbers, recon unit numbers
     58  *
     59  * Revision 1.9  1996/06/03  23:28:26  jimz
     60  * more bugfixes
     61  * check in tree to sync for IPDS runs with current bugfixes
     62  * there still may be a problem with threads in the script test
     63  * getting I/Os stuck- not trivially reproducible (runs ~50 times
     64  * in a row without getting stuck)
     65  *
     66  * Revision 1.8  1996/05/31  22:26:54  jimz
     67  * fix a lot of mapping problems, memory allocation problems
     68  * found some weird lock issues, fixed 'em
     69  * more code cleanup
     70  *
     71  * Revision 1.7  1996/05/27  18:56:37  jimz
     72  * more code cleanup
     73  * better typing
     74  * compiles in all 3 environments
     75  *
     76  * Revision 1.6  1996/05/23  21:46:35  jimz
     77  * checkpoint in code cleanup (release prep)
     78  * lots of types, function names have been fixed
     79  *
     80  * Revision 1.5  1996/05/18  19:51:34  jimz
     81  * major code cleanup- fix syntax, make some types consistent,
     82  * add prototypes, clean out dead code, et cetera
     83  *
     84  * Revision 1.4  1996/02/22  16:45:59  amiri
     85  * added declaration of dag selection function
     86  *
     87  * Revision 1.3  1995/12/01  15:16:56  root
     88  * added copyright info
     89  *
     90  * Revision 1.2  1995/11/17  19:55:21  amiri
     91  * prototyped MapParityChainDecluster
     92  */
     93 
     94 #ifndef _RF__RF_CHAINDECLUSTER_H_
     95 #define _RF__RF_CHAINDECLUSTER_H_
     96 
     97 int rf_ConfigureChainDecluster(RF_ShutdownList_t **listp, RF_Raid_t *raidPtr,
     98 	RF_Config_t *cfgPtr);
     99 RF_ReconUnitCount_t rf_GetNumSpareRUsChainDecluster(RF_Raid_t *raidPtr);
    100 void rf_MapSectorChainDecluster(RF_Raid_t *raidPtr, RF_RaidAddr_t raidSector,
    101 	RF_RowCol_t *row, RF_RowCol_t *col, RF_SectorNum_t *diskSector, int remap);
    102 void rf_MapParityChainDecluster(RF_Raid_t *raidPtr, RF_RaidAddr_t raidSector,
    103 	RF_RowCol_t *row, RF_RowCol_t *col, RF_SectorNum_t *diskSector, int remap);
    104 void rf_IdentifyStripeChainDecluster(RF_Raid_t *raidPtr, RF_RaidAddr_t addr,
    105 	RF_RowCol_t **diskids, RF_RowCol_t *outRow);
    106 void rf_MapSIDToPSIDChainDecluster(RF_RaidLayout_t *layoutPtr,
    107 	RF_StripeNum_t stripeID, RF_StripeNum_t *psID,
    108 	RF_ReconUnitNum_t *which_ru);
    109 void rf_RAIDCDagSelect(RF_Raid_t *raidPtr, RF_IoType_t type,
    110 		       RF_AccessStripeMap_t *asmap,
    111 		       RF_VoidFuncPtr *);
    112 #if 0
    113 		       void (**createFunc)(RF_Raid_t *,
    114 					   RF_AccessStripeMap_t *,
    115 					   RF_DagHeader_t *,
    116 					   void *,
    117 					   RF_RaidAccessFlags_t,
    118 					   RF_AllocListElem_t *)
    119 );
    120 #endif
    121 
    122 #endif /* !_RF__RF_CHAINDECLUSTER_H_ */
    123