| 1 | /* $NetBSD: rf_dagfuncs.h,v 1.10 2006/01/09 01:33:27 oster Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 1995 Carnegie-Mellon University. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Author: Mark Holland, William V. Courtright II, Jim Zelenka |
| 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 | /***************************************************************************************** |
| 30 | * |
| 31 | * dagfuncs.h -- header file for DAG node execution routines |
| 32 | * |
| 33 | ****************************************************************************************/ |
| 34 | |
| 35 | #ifndef _RF__RF_DAGFUNCS_H_ |
| 36 | #define _RF__RF_DAGFUNCS_H_ |
| 37 | |
| 38 | int rf_ConfigureDAGFuncs(RF_ShutdownList_t ** listp); |
| 39 | int rf_TerminateFunc(RF_DagNode_t * node); |
| 40 | int rf_TerminateUndoFunc(RF_DagNode_t * node); |
| 41 | int rf_DiskReadMirrorIdleFunc(RF_DagNode_t * node); |
| 42 | int rf_DiskReadMirrorPartitionFunc(RF_DagNode_t * node); |
| 43 | int rf_DiskReadMirrorUndoFunc(RF_DagNode_t * node); |
| 44 | int rf_ParityLogUpdateFunc(RF_DagNode_t * node); |
| 45 | int rf_ParityLogOverwriteFunc(RF_DagNode_t * node); |
| 46 | int rf_ParityLogUpdateUndoFunc(RF_DagNode_t * node); |
| 47 | int rf_ParityLogOverwriteUndoFunc(RF_DagNode_t * node); |
| 48 | int rf_NullNodeFunc(RF_DagNode_t * node); |
| 49 | int rf_NullNodeUndoFunc(RF_DagNode_t * node); |
| 50 | int rf_DiskReadFuncForThreads(RF_DagNode_t * node); |
| 51 | int rf_DiskWriteFuncForThreads(RF_DagNode_t * node); |
| 52 | int rf_DiskUndoFunc(RF_DagNode_t * node); |
| 53 | int rf_GenericWakeupFunc(RF_DagNode_t * node, int status); |
| 54 | int rf_RegularXorFunc(RF_DagNode_t * node); |
| 55 | int rf_SimpleXorFunc(RF_DagNode_t * node); |
| 56 | int rf_RecoveryXorFunc(RF_DagNode_t * node); |
| 57 | int |
| 58 | rf_XorIntoBuffer(RF_Raid_t * raidPtr, RF_PhysDiskAddr_t * pda, char *srcbuf, |
| 59 | char *targbuf); |
| 60 | int rf_bxor(char *src, char *dest, int len); |
| 61 | int |
| 62 | rf_longword_bxor(unsigned long *src, unsigned long *dest, int len); |
| 63 | int |
| 64 | rf_longword_bxor3(unsigned long *dest, unsigned long *a, unsigned long *b, |
| 65 | unsigned long *c, int len, void *bp); |
| 66 | int |
| 67 | rf_bxor3(unsigned char *dst, unsigned char *a, unsigned char *b, |
| 68 | unsigned char *c, unsigned long len, void *bp); |
| 69 | |
| 70 | /* function ptrs defined in ConfigureDAGFuncs() */ |
| 71 | extern int (*rf_DiskReadFunc) (RF_DagNode_t *); |
| 72 | extern int (*rf_DiskWriteFunc) (RF_DagNode_t *); |
| 73 | extern int (*rf_DiskReadUndoFunc) (RF_DagNode_t *); |
| 74 | extern int (*rf_DiskWriteUndoFunc) (RF_DagNode_t *); |
| 75 | extern int (*rf_SimpleXorUndoFunc) (RF_DagNode_t *); |
| 76 | extern int (*rf_RegularXorUndoFunc) (RF_DagNode_t *); |
| 77 | extern int (*rf_RecoveryXorUndoFunc) (RF_DagNode_t *); |
| 78 | |
| 79 | /* macros for manipulating the param[3] in a read or write node */ |
| 80 | #define RF_CREATE_PARAM3(pri, wru) (((RF_uint64)(((wru&0xFFFFFF)<<8)|((pri)&0xF)) )) |
| 81 | #define (_x_) ((((unsigned) ((unsigned long)(_x_))) >> 0) & 0x0F) |
| 82 | #define (_x_) ((((unsigned) ((unsigned long)(_x_))) >> 8) & 0xFFFFFF) |
| 83 | |
| 84 | #endif /* !_RF__RF_DAGFUNCS_H_ */ |
| 85 | |