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rf_dagdegwr.h revision 1.1 
      1 /*	$NetBSD: rf_dagdegwr.h,v 1.1 1998/11/13 04:20:27 oster Exp $	*/
      2 /*
      3  * Copyright (c) 1995 Carnegie-Mellon University.
      4  * All rights reserved.
      5  *
      6  * Author: Mark Holland, Daniel Stodolsky, 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 (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 /*
     30  * :
     31  * Log: rf_dagdegwr.h,v
     32  * Revision 1.6  1996/07/31 16:30:28  jimz
     33  * asm/asmap fix (EO merge)
     34  *
     35  * Revision 1.5  1996/07/31  15:35:38  jimz
     36  * evenodd changes; bugfixes for double-degraded archs, generalize
     37  * some formerly PQ-only functions
     38  *
     39  * Revision 1.4  1996/07/22  19:52:16  jimz
     40  * switched node params to RF_DagParam_t, a union of
     41  * a 64-bit int and a void *, for better portability
     42  * attempted hpux port, but failed partway through for
     43  * lack of a single C compiler capable of compiling all
     44  * source files
     45  *
     46  * Revision 1.3  1996/05/24  22:17:04  jimz
     47  * continue code + namespace cleanup
     48  * typed a bunch of flags
     49  *
     50  * Revision 1.2  1996/05/23  21:46:35  jimz
     51  * checkpoint in code cleanup (release prep)
     52  * lots of types, function names have been fixed
     53  *
     54  * Revision 1.1  1996/05/03  19:21:28  wvcii
     55  * Initial revision
     56  *
     57  */
     58 
     59 #ifndef _RF__RF_DAGDEGWR_H_
     60 #define _RF__RF_DAGDEGWR_H_
     61 
     62 /* degraded write DAG creation routines */
     63 void rf_CreateDegradedWriteDAG(RF_Raid_t *raidPtr,
     64 	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
     65 	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList);
     66 void rf_CommonCreateSimpleDegradedWriteDAG(RF_Raid_t *raidPtr,
     67 	RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h, void *bp,
     68 	RF_RaidAccessFlags_t flags, RF_AllocListElem_t *allocList,
     69 	int nfaults, int (*redFunc)(RF_DagNode_t *), int allowBufferRecycle);
     70 void rf_WriteGenerateFailedAccessASMs(RF_Raid_t *raidPtr,
     71 	RF_AccessStripeMap_t *asmap, RF_PhysDiskAddr_t **pdap,
     72 	int *nNodep, RF_PhysDiskAddr_t **pqpdap,
     73 	int *nPQNodep, RF_AllocListElem_t *allocList);
     74 void rf_DoubleDegSmallWrite(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap,
     75 	RF_DagHeader_t *dag_h, void *bp, RF_RaidAccessFlags_t flags,
     76 	RF_AllocListElem_t *allocList, char *redundantReadNodeName,
     77 	char *redundantWriteNodeName, char *recoveryNodeName,
     78 	int (*recovFunc)(RF_DagNode_t *));
     79 
     80 #endif /* !_RF__RF_DAGDEGWR_H_ */
     81