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 | |