sys/dev/raidframe/rf_dagdegrd.h

   1 /*      $NetBSD: rf_dagdegrd.h,v 1.7 2005/12/11 12:23:37 christos 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, const char *redundantReadNodeName,
  61     const char *recoveryNodeName, int (*recovFunc) (RF_DagNode_t *));
  62
  63 #endif                          /* !_RF__RF_DAGDEGRD_H_ */