Annotation of sys/dev/raidframe/rf_dagfuncs.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: rf_dagfuncs.h,v 1.4 2002/12/16 07:01:03 tdeval Exp $ */
2: /* $NetBSD: rf_dagfuncs.h,v 1.4 2000/03/30 13:39:07 oster Exp $ */
3:
4: /*
5: * Copyright (c) 1995 Carnegie-Mellon University.
6: * All rights reserved.
7: *
8: * Author: Mark Holland, William V. Courtright II, Jim Zelenka
9: *
10: * Permission to use, copy, modify and distribute this software and
11: * its documentation is hereby granted, provided that both the copyright
12: * notice and this permission notice appear in all copies of the
13: * software, derivative works or modified versions, and any portions
14: * thereof, and that both notices appear in supporting documentation.
15: *
16: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19: *
20: * Carnegie Mellon requests users of this software to return to
21: *
22: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23: * School of Computer Science
24: * Carnegie Mellon University
25: * Pittsburgh PA 15213-3890
26: *
27: * any improvements or extensions that they make and grant Carnegie the
28: * rights to redistribute these changes.
29: */
30:
31: /*****************************************************************************
32: *
33: * dagfuncs.h -- Header file for DAG node execution routines.
34: *
35: *****************************************************************************/
36:
37: #ifndef _RF__RF_DAGFUNCS_H_
38: #define _RF__RF_DAGFUNCS_H_
39:
40: int rf_ConfigureDAGFuncs(RF_ShutdownList_t **);
41: int rf_TerminateFunc(RF_DagNode_t *);
42: int rf_TerminateUndoFunc(RF_DagNode_t *);
43: int rf_DiskReadMirrorIdleFunc(RF_DagNode_t *);
44: int rf_DiskReadMirrorPartitionFunc(RF_DagNode_t *);
45: int rf_DiskReadMirrorUndoFunc(RF_DagNode_t *);
46: int rf_ParityLogUpdateFunc(RF_DagNode_t *);
47: int rf_ParityLogOverwriteFunc(RF_DagNode_t *);
48: int rf_ParityLogUpdateUndoFunc(RF_DagNode_t *);
49: int rf_ParityLogOverwriteUndoFunc(RF_DagNode_t *);
50: int rf_NullNodeFunc(RF_DagNode_t *);
51: int rf_NullNodeUndoFunc(RF_DagNode_t *);
52: int rf_DiskReadFuncForThreads(RF_DagNode_t *);
53: int rf_DiskWriteFuncForThreads(RF_DagNode_t *);
54: int rf_DiskUndoFunc(RF_DagNode_t *);
55: int rf_DiskUnlockFuncForThreads(RF_DagNode_t *);
56: int rf_GenericWakeupFunc(RF_DagNode_t *, int);
57: int rf_RegularXorFunc(RF_DagNode_t *);
58: int rf_SimpleXorFunc(RF_DagNode_t *);
59: int rf_RecoveryXorFunc(RF_DagNode_t *);
60: int rf_XorIntoBuffer(RF_Raid_t *, RF_PhysDiskAddr_t *, char *, char *, void *);
61: int rf_bxor(char *, char *, int, void *);
62: int rf_longword_bxor(unsigned long *, unsigned long *, int, void *);
63: int rf_longword_bxor3(unsigned long *, unsigned long *, unsigned long *,
64: unsigned long *, int, void *);
65: int rf_bxor3(unsigned char *, unsigned char *, unsigned char *,
66: unsigned char *, unsigned long, void *);
67:
68: /* Function ptrs defined in ConfigureDAGFuncs(). */
69: extern int (*rf_DiskReadFunc) (RF_DagNode_t *);
70: extern int (*rf_DiskWriteFunc) (RF_DagNode_t *);
71: extern int (*rf_DiskReadUndoFunc) (RF_DagNode_t *);
72: extern int (*rf_DiskWriteUndoFunc) (RF_DagNode_t *);
73: extern int (*rf_DiskUnlockFunc) (RF_DagNode_t *);
74: extern int (*rf_DiskUnlockUndoFunc) (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,lk,unlk,wru) \
81: (((RF_uint64) (((wru & 0xFFFFFF) << 8) | ((lk) ? 0x10 : 0) | \
82: ((unlk) ? 0x20 : 0) | ((pri) & 0xF))))
83: #define RF_EXTRACT_PRIORITY(_x_) \
84: ((((unsigned) ((unsigned long)(_x_))) >> 0) & 0x0F)
85: #define RF_EXTRACT_LOCK_FLAG(_x_) \
86: ((((unsigned) ((unsigned long)(_x_))) >> 4) & 0x1)
87: #define RF_EXTRACT_UNLOCK_FLAG(_x_) \
88: ((((unsigned) ((unsigned long)(_x_))) >> 5) & 0x1)
89: #define RF_EXTRACT_RU(_x_) \
90: ((((unsigned) ((unsigned long)(_x_))) >> 8) & 0xFFFFFF)
91:
92: #endif /* !_RF__RF_DAGFUNCS_H_ */
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