]> git.ipfire.org Git - thirdparty/mdadm.git/blob - md_u.h
Correctly abort level change when reshape_array fails.
[thirdparty/mdadm.git] / md_u.h
1 /*
2 md_u.h : user <=> kernel API between Linux raidtools and RAID drivers
3 Copyright (C) 1998 Ingo Molnar
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
8 any later version.
9
10 You should have received a copy of the GNU General Public License
11 (for example /usr/src/linux/COPYING); if not, write to the Free
12 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
13 */
14
15 #ifndef _MD_U_H
16 #define _MD_U_H
17
18 /* ioctls */
19
20 /* status */
21 #define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t)
22 #define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t)
23 #define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t)
24 #define PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13)
25 #define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
26 #define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)
27
28 /* configuration */
29 #define CLEAR_ARRAY _IO (MD_MAJOR, 0x20)
30 #define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t)
31 #define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22)
32 #define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t)
33 #define SET_DISK_INFO _IO (MD_MAJOR, 0x24)
34 #define WRITE_RAID_INFO _IO (MD_MAJOR, 0x25)
35 #define UNPROTECT_ARRAY _IO (MD_MAJOR, 0x26)
36 #define PROTECT_ARRAY _IO (MD_MAJOR, 0x27)
37 #define HOT_ADD_DISK _IO (MD_MAJOR, 0x28)
38 #define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29)
39 #define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int)
40
41 /* usage */
42 #define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t)
43 #define START_ARRAY _IO (MD_MAJOR, 0x31)
44 #define STOP_ARRAY _IO (MD_MAJOR, 0x32)
45 #define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33)
46 #define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34)
47
48 typedef struct mdu_version_s {
49 int major;
50 int minor;
51 int patchlevel;
52 } mdu_version_t;
53
54 typedef struct mdu_array_info_s {
55 /*
56 * Generic constant information
57 */
58 int major_version;
59 int minor_version;
60 int patch_version;
61 int ctime;
62 int level;
63 int size;
64 int nr_disks;
65 int raid_disks;
66 int md_minor;
67 int not_persistent;
68
69 /*
70 * Generic state information
71 */
72 int utime; /* 0 Superblock update time */
73 int state; /* 1 State bits (clean, ...) */
74 int active_disks; /* 2 Number of currently active disks */
75 int working_disks; /* 3 Number of working disks */
76 int failed_disks; /* 4 Number of failed disks */
77 int spare_disks; /* 5 Number of spare disks */
78
79 /*
80 * Personality information
81 */
82 int layout; /* 0 the array's physical layout */
83 int chunk_size; /* 1 chunk size in bytes */
84
85 } mdu_array_info_t;
86
87 typedef struct mdu_disk_info_s {
88 /*
89 * configuration/status of one particular disk
90 */
91 int number;
92 int major;
93 int minor;
94 int raid_disk;
95 int state;
96
97 } mdu_disk_info_t;
98
99 typedef struct mdu_start_info_s {
100 /*
101 * configuration/status of one particular disk
102 */
103 int major;
104 int minor;
105 int raid_disk;
106 int state;
107
108 } mdu_start_info_t;
109
110 typedef struct mdu_bitmap_file_s
111 {
112 char pathname[4096];
113 } mdu_bitmap_file_t;
114
115 typedef struct mdu_param_s
116 {
117 int personality; /* 1,2,3,4 */
118 int chunk_size; /* in bytes */
119 int max_fault; /* unused for now */
120 } mdu_param_t;
121
122 #endif
123