1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/* $OpenBSD: rf_configure.h,v 1.5 2002/12/16 07:01:03 tdeval Exp $ */
/* $NetBSD: rf_configure.h,v 1.4 1999/03/02 03:18:49 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Mark Holland
*
* 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_configure.h
*
* Header file for RAIDframe configuration in the kernel version only.
* Configuration is invoked via ioctl rather than at boot time.
*
*****************************************************************************/
#ifndef _RF__RF_CONFIGURE_H_
#define _RF__RF_CONFIGURE_H_
#include "rf_archs.h"
#include "rf_types.h"
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/ioctl.h>
/*
* The RAIDframe configuration, passed down through an ioctl.
* The driver can be reconfigured (with total loss of data) at any time,
* but it must be shut down first.
*/
struct RF_Config_s {
/* Number of rows, columns, and spare disks. */
RF_RowCol_t numRow, numCol, numSpare;
/* Device numbers for disks comprising array. */
dev_t devs[RF_MAXROW][RF_MAXCOL];
/* Device names. */
char devnames[RF_MAXROW][RF_MAXCOL][50];
/* Device numbers for spare disks. */
dev_t spare_devs[RF_MAXSPARE];
/* Device names. */
char spare_names[RF_MAXSPARE][50];
/* Sectors per stripe unit. */
RF_SectorNum_t sectPerSU;
/* Stripe units per parity unit. */
RF_StripeNum_t SUsPerPU;
/* Stripe units per reconstruction unit. */
RF_StripeNum_t SUsPerRU;
/* Identifies the RAID architecture to be used. */
RF_ParityConfig_t parityConfig;
/* 'f' = fifo, 'c' = cvscan, not used in kernel. */
RF_DiskQueueType_t diskQueueType;
/* # concurrent reqs to be sent to a disk. Not used in kernel. */
char maxOutstandingDiskReqs;
/* Space for specifying debug variables & their values. */
char debugVars[RF_MAXDBGV][RF_MAXDBGVLEN];
/* Size in bytes of layout-specific info. */
unsigned int layoutSpecificSize;
/* A pointer to a layout-specific structure to be copied in. */
void *layoutSpecific;
/* If !0, ignore many fatal configuration conditions. */
int force;
/*
* "force" is used to override cases where the component labels
* would indicate that configuration should not proceed without
* user intervention.
*/
};
#ifndef _KERNEL
int rf_MakeConfig(char *, RF_Config_t *);
int rf_MakeLayoutSpecificNULL(FILE *, RF_Config_t *, void *);
int rf_MakeLayoutSpecificDeclustered(FILE *, RF_Config_t *, void *);
void *rf_ReadSpareTable(RF_SparetWait_t *, char *);
#endif /* !_KERNEL */
#endif /* !_RF__RF_CONFIGURE_H_ */
|
