diff options
Diffstat (limited to 'sys/dev/raidframe/rf_dagfuncs.h')
| -rw-r--r-- | sys/dev/raidframe/rf_dagfuncs.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_dagfuncs.h b/sys/dev/raidframe/rf_dagfuncs.h new file mode 100644 index 0000000..da7e8b2 --- /dev/null +++ b/sys/dev/raidframe/rf_dagfuncs.h @@ -0,0 +1,90 @@ +/* $FreeBSD$ */ +/* $NetBSD: rf_dagfuncs.h,v 1.4 2000/03/30 13:39:07 oster Exp $ */ +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Mark Holland, William V. Courtright II, Jim Zelenka + * + * 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. + */ + +/***************************************************************************************** + * + * dagfuncs.h -- header file for DAG node execution routines + * + ****************************************************************************************/ + +#ifndef _RF__RF_DAGFUNCS_H_ +#define _RF__RF_DAGFUNCS_H_ + +int rf_ConfigureDAGFuncs(RF_ShutdownList_t ** listp); +int rf_TerminateFunc(RF_DagNode_t * node); +int rf_TerminateUndoFunc(RF_DagNode_t * node); +int rf_DiskReadMirrorIdleFunc(RF_DagNode_t * node); +int rf_DiskReadMirrorPartitionFunc(RF_DagNode_t * node); +int rf_DiskReadMirrorUndoFunc(RF_DagNode_t * node); +int rf_ParityLogUpdateFunc(RF_DagNode_t * node); +int rf_ParityLogOverwriteFunc(RF_DagNode_t * node); +int rf_ParityLogUpdateUndoFunc(RF_DagNode_t * node); +int rf_ParityLogOverwriteUndoFunc(RF_DagNode_t * node); +int rf_NullNodeFunc(RF_DagNode_t * node); +int rf_NullNodeUndoFunc(RF_DagNode_t * node); +int rf_DiskReadFuncForThreads(RF_DagNode_t * node); +int rf_DiskWriteFuncForThreads(RF_DagNode_t * node); +int rf_DiskUndoFunc(RF_DagNode_t * node); +int rf_DiskUnlockFuncForThreads(RF_DagNode_t * node); +int rf_GenericWakeupFunc(RF_DagNode_t * node, int status); +int rf_RegularXorFunc(RF_DagNode_t * node); +int rf_SimpleXorFunc(RF_DagNode_t * node); +int rf_RecoveryXorFunc(RF_DagNode_t * node); +int +rf_XorIntoBuffer(RF_Raid_t * raidPtr, RF_PhysDiskAddr_t * pda, char *srcbuf, + char *targbuf, void *bp); +int rf_bxor(char *src, char *dest, int len, void *bp); +int +rf_longword_bxor(unsigned long *src, unsigned long *dest, int len, void *bp); +int +rf_longword_bxor3(unsigned long *dest, unsigned long *a, unsigned long *b, + unsigned long *c, int len, void *bp); +int +rf_bxor3(unsigned char *dst, unsigned char *a, unsigned char *b, + unsigned char *c, unsigned long len, void *bp); + +/* function ptrs defined in ConfigureDAGFuncs() */ +extern int (*rf_DiskReadFunc) (RF_DagNode_t *); +extern int (*rf_DiskWriteFunc) (RF_DagNode_t *); +extern int (*rf_DiskReadUndoFunc) (RF_DagNode_t *); +extern int (*rf_DiskWriteUndoFunc) (RF_DagNode_t *); +extern int (*rf_DiskUnlockFunc) (RF_DagNode_t *); +extern int (*rf_DiskUnlockUndoFunc) (RF_DagNode_t *); +extern int (*rf_SimpleXorUndoFunc) (RF_DagNode_t *); +extern int (*rf_RegularXorUndoFunc) (RF_DagNode_t *); +extern int (*rf_RecoveryXorUndoFunc) (RF_DagNode_t *); + +/* macros for manipulating the param[3] in a read or write node */ +#define RF_CREATE_PARAM3(pri, lk, unlk, wru) (((RF_uint64)(((wru&0xFFFFFF)<<8)|((lk)?0x10:0)|((unlk)?0x20:0)|((pri)&0xF)) )) +#define RF_EXTRACT_PRIORITY(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 0) & 0x0F) +#define RF_EXTRACT_LOCK_FLAG(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 4) & 0x1) +#define RF_EXTRACT_UNLOCK_FLAG(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 5) & 0x1) +#define RF_EXTRACT_RU(_x_) ((((unsigned) ((unsigned long)(_x_))) >> 8) & 0xFFFFFF) + +#endif /* !_RF__RF_DAGFUNCS_H_ */ |
