1eecf8e491
out-dated comments, and other unneeded stuff. This helps prepare for cleaning up the rest of the code, and adding new functionality. No functional changes to the kernel code in this commit.
120 lines
4.0 KiB
C
120 lines
4.0 KiB
C
/* $NetBSD: rf_dagutils.h,v 1.2 1999/01/26 02:33:54 oster Exp $ */
|
|
/*
|
|
* Copyright (c) 1995 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Mark Holland, William V. Courtright II
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
/*************************************************************************
|
|
*
|
|
* rf_dagutils.h -- header file for utility routines for manipulating DAGs
|
|
*
|
|
*************************************************************************/
|
|
|
|
|
|
#include "rf_types.h"
|
|
#include "rf_dagfuncs.h"
|
|
#include "rf_general.h"
|
|
|
|
#ifndef _RF__RF_DAGUTILS_H_
|
|
#define _RF__RF_DAGUTILS_H_
|
|
|
|
struct RF_RedFuncs_s {
|
|
int (*regular)(RF_DagNode_t *);
|
|
char *RegularName;
|
|
int (*simple)(RF_DagNode_t *);
|
|
char *SimpleName;
|
|
};
|
|
|
|
extern RF_RedFuncs_t rf_xorFuncs;
|
|
extern RF_RedFuncs_t rf_xorRecoveryFuncs;
|
|
|
|
void rf_InitNode(RF_DagNode_t *node, RF_NodeStatus_t initstatus,
|
|
int commit,
|
|
int (*doFunc)(RF_DagNode_t *node),
|
|
int (*undoFunc)(RF_DagNode_t *node),
|
|
int (*wakeFunc)(RF_DagNode_t *node, int status),
|
|
int nSucc, int nAnte, int nParam, int nResult,
|
|
RF_DagHeader_t *hdr, char *name, RF_AllocListElem_t *alist);
|
|
|
|
void rf_FreeDAG(RF_DagHeader_t *dag_h);
|
|
|
|
RF_PropHeader_t *rf_MakePropListEntry(RF_DagHeader_t *dag_h, int resultNum,
|
|
int paramNum, RF_PropHeader_t *next, RF_AllocListElem_t *allocList);
|
|
|
|
int rf_ConfigureDAGs(RF_ShutdownList_t **listp);
|
|
|
|
RF_DagHeader_t *rf_AllocDAGHeader(void);
|
|
|
|
void rf_FreeDAGHeader(RF_DagHeader_t *dh);
|
|
|
|
void *rf_AllocBuffer(RF_Raid_t *raidPtr, RF_DagHeader_t *dag_h,
|
|
RF_PhysDiskAddr_t *pda, RF_AllocListElem_t *allocList);
|
|
|
|
char *rf_NodeStatusString(RF_DagNode_t *node);
|
|
|
|
void rf_PrintNodeInfoString(RF_DagNode_t *node);
|
|
|
|
int rf_AssignNodeNums(RF_DagHeader_t *dag_h);
|
|
|
|
int rf_RecurAssignNodeNums(RF_DagNode_t *node, int num, int unvisited);
|
|
|
|
void rf_ResetDAGHeaderPointers(RF_DagHeader_t *dag_h, RF_DagHeader_t *newptr);
|
|
|
|
void rf_RecurResetDAGHeaderPointers(RF_DagNode_t *node, RF_DagHeader_t *newptr);
|
|
|
|
void rf_PrintDAGList(RF_DagHeader_t *dag_h);
|
|
|
|
int rf_ValidateDAG(RF_DagHeader_t *dag_h);
|
|
|
|
void rf_redirect_asm(RF_Raid_t *raidPtr, RF_AccessStripeMap_t *asmap);
|
|
|
|
void rf_MapUnaccessedPortionOfStripe(RF_Raid_t *raidPtr,
|
|
RF_RaidLayout_t *layoutPtr,
|
|
RF_AccessStripeMap_t *asmap, RF_DagHeader_t *dag_h,
|
|
RF_AccessStripeMapHeader_t **new_asm_h, int *nRodNodes, char **sosBuffer,
|
|
char **eosBuffer, RF_AllocListElem_t *allocList);
|
|
|
|
int rf_PDAOverlap(RF_RaidLayout_t *layoutPtr, RF_PhysDiskAddr_t *src,
|
|
RF_PhysDiskAddr_t *dest);
|
|
|
|
void rf_GenerateFailedAccessASMs(RF_Raid_t *raidPtr,
|
|
RF_AccessStripeMap_t *asmap, RF_PhysDiskAddr_t *failedPDA,
|
|
RF_DagHeader_t *dag_h, RF_AccessStripeMapHeader_t **new_asm_h,
|
|
int *nXorBufs, char **rpBufPtr, char *overlappingPDAs,
|
|
RF_AllocListElem_t *allocList);
|
|
|
|
/* flags used by RangeRestrictPDA */
|
|
#define RF_RESTRICT_NOBUFFER 0
|
|
#define RF_RESTRICT_DOBUFFER 1
|
|
|
|
void rf_RangeRestrictPDA(RF_Raid_t *raidPtr, RF_PhysDiskAddr_t *src,
|
|
RF_PhysDiskAddr_t *dest, int dobuffer, int doraidaddr);
|
|
|
|
int rf_compute_workload_shift(RF_Raid_t *raidPtr, RF_PhysDiskAddr_t *pda);
|
|
void rf_SelectMirrorDiskIdle(RF_DagNode_t *node);
|
|
void rf_SelectMirrorDiskPartition(RF_DagNode_t *node);
|
|
|
|
#endif /* !_RF__RF_DAGUTILS_H_ */
|