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rf_dagdegwr.h revision 1.3 
      1 /*	$NetBSD: rf_dagdegwr.h,v 1.3 1999/02/05 00:06:07 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 #ifndef _RF__RF_DAGDEGWR_H_
     31 #define _RF__RF_DAGDEGWR_H_
     32 
     33 /* degraded write DAG creation routines */
     34 void
     35 rf_CreateDegradedWriteDAG(RF_Raid_t * raidPtr,
     36     RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
     37     RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList);
     38 void
     39 rf_CommonCreateSimpleDegradedWriteDAG(RF_Raid_t * raidPtr,
     40     RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
     41     RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList,
     42     int nfaults, int (*redFunc) (RF_DagNode_t *), int allowBufferRecycle);
     43 	void    rf_WriteGenerateFailedAccessASMs(RF_Raid_t * raidPtr,
     44             RF_AccessStripeMap_t * asmap, RF_PhysDiskAddr_t ** pdap,
     45             int *nNodep, RF_PhysDiskAddr_t ** pqpdap,
     46             int *nPQNodep, RF_AllocListElem_t * allocList);
     47 	void    rf_DoubleDegSmallWrite(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap,
     48             RF_DagHeader_t * dag_h, void *bp, RF_RaidAccessFlags_t flags,
     49             RF_AllocListElem_t * allocList, char *redundantReadNodeName,
     50             char *redundantWriteNodeName, char *recoveryNodeName,
     51             int (*recovFunc) (RF_DagNode_t *));
     52 
     53 #endif				/* !_RF__RF_DAGDEGWR_H_ */
     54