The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/raidframe/rf_dagdegrd.h

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    1 /*      $NetBSD: rf_dagdegrd.h,v 1.5 2003/02/09 10:04:33 jdolecek 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@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_DAGDEGRD_H_
   30 #define _RF__RF_DAGDEGRD_H_
   31 
   32 #include <dev/raidframe/raidframevar.h>
   33 
   34 /* degraded read DAG creation routines */
   35 void 
   36 rf_CreateRaidFiveDegradedReadDAG(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 void 
   40 rf_CreateRaidOneDegradedReadDAG(RF_Raid_t * raidPtr,
   41     RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
   42     RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList);
   43 void 
   44 rf_CreateDegradedReadDAG(RF_Raid_t * raidPtr,
   45     RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
   46     RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList,
   47     const RF_RedFuncs_t * recFunc);
   48 void 
   49 rf_CreateRaidCDegradedReadDAG(RF_Raid_t * raidPtr,
   50     RF_AccessStripeMap_t * asmap, RF_DagHeader_t * dag_h, void *bp,
   51     RF_RaidAccessFlags_t flags, RF_AllocListElem_t * allocList);
   52 void 
   53 rf_DD_GenerateFailedAccessASMs(RF_Raid_t * raidPtr,
   54     RF_AccessStripeMap_t * asmap, RF_PhysDiskAddr_t ** pdap,
   55     int *nNodep, RF_PhysDiskAddr_t ** pqpdap, int *nPQNodep,
   56     RF_AllocListElem_t * allocList);
   57 void 
   58 rf_DoubleDegRead(RF_Raid_t * raidPtr, RF_AccessStripeMap_t * asmap,
   59     RF_DagHeader_t * dag_h, void *bp, RF_RaidAccessFlags_t flags,
   60     RF_AllocListElem_t * allocList, char *redundantReadNodeName,
   61     char *recoveryNodeName, int (*recovFunc) (RF_DagNode_t *));
   62 
   63 #endif                          /* !_RF__RF_DAGDEGRD_H_ */

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