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rf_dagffwr.h revision 1.4 
      1 /*	$NetBSD: rf_dagffwr.h,v 1.4 2001/10/04 15:58:52 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 #ifndef _RF__RF_DAGFFWR_H_
     30 #define _RF__RF_DAGFFWR_H_
     31 
     32 #include <dev/raidframe/raidframevar.h>
     33 
     34 /* fault-free write DAG creation routines */
     35 void
     36 rf_CreateNonRedundantWriteDAG(RF_Raid_t * raidPtr,
     37     RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
     38     RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList,
     39     RF_IoType_t type);
     40 void
     41 rf_CreateRAID0WriteDAG(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap,
     42     RF_DagHeader_t * dag_h, void *bp, RF_RaidAccessFlags_t flags,
     43     RF_AllocListElem_t * allocList, RF_IoType_t type);
     44 void
     45 rf_CreateSmallWriteDAG(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap,
     46     RF_DagHeader_t * dag_h, void *bp, RF_RaidAccessFlags_t flags,
     47     RF_AllocListElem_t * allocList);
     48 void
     49 rf_CreateLargeWriteDAG(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap,
     50     RF_DagHeader_t * dag_h, void *bp, RF_RaidAccessFlags_t flags,
     51     RF_AllocListElem_t * allocList);
     52 void
     53 rf_CommonCreateLargeWriteDAG(RF_Raid_t * raidPtr,
     54     RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
     55     RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList, int nfaults,
     56     int (*redFunc) (RF_DagNode_t *), int allowBufferRecycle);
     57 	void    rf_CommonCreateLargeWriteDAGFwd(RF_Raid_t * raidPtr,
     58             RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
     59             RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList, int nfaults,
     60             int (*redFunc) (RF_DagNode_t *), int allowBufferRecycle);
     61 	void    rf_CommonCreateSmallWriteDAG(RF_Raid_t * raidPtr,
     62             RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
     63             RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList,
     64             RF_RedFuncs_t * pfuncs, RF_RedFuncs_t * qfuncs);
     65 	void    rf_CommonCreateSmallWriteDAGFwd(RF_Raid_t * raidPtr,
     66             RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
     67             RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList,
     68             RF_RedFuncs_t * pfuncs, RF_RedFuncs_t * qfuncs);
     69 	void    rf_CreateRaidOneWriteDAG(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap,
     70             RF_DagHeader_t * dag_h, void *bp, RF_RaidAccessFlags_t flags,
     71             RF_AllocListElem_t * allocList);
     72 	void    rf_CreateRaidOneWriteDAGFwd(RF_Raid_t * raidPtr,
     73             RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
     74             RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList);
     75 
     76 #endif				/* !_RF__RF_DAGFFWR_H_ */
     77