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64c4757e NB |
1 | /* |
2 | md_u.h : user <=> kernel API between Linux raidtools and RAID drivers | |
3 | Copyright (C) 1998 Ingo Molnar | |
aba69144 | 4 | |
64c4757e NB |
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. | |
aba69144 | 9 | |
64c4757e NB |
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 | |
aba69144 | 12 | Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
64c4757e NB |
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) | |
64c4757e | 24 | #define RAID_AUTORUN _IO (MD_MAJOR, 0x14) |
c82f047c | 25 | #define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t) |
64c4757e NB |
26 | |
27 | /* configuration */ | |
64c4757e NB |
28 | #define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t) |
29 | #define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22) | |
30 | #define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t) | |
64c4757e NB |
31 | #define HOT_ADD_DISK _IO (MD_MAJOR, 0x28) |
32 | #define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29) | |
c82f047c | 33 | #define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int) |
64c4757e NB |
34 | |
35 | /* usage */ | |
36 | #define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t) | |
64c4757e NB |
37 | #define STOP_ARRAY _IO (MD_MAJOR, 0x32) |
38 | #define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33) | |
39 | #define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34) | |
4de90913 | 40 | #define CLUSTERED_DISK_NACK _IO (MD_MAJOR, 0x35) |
64c4757e NB |
41 | |
42 | typedef struct mdu_version_s { | |
43 | int major; | |
44 | int minor; | |
45 | int patchlevel; | |
46 | } mdu_version_t; | |
47 | ||
48 | typedef struct mdu_array_info_s { | |
49 | /* | |
50 | * Generic constant information | |
51 | */ | |
52 | int major_version; | |
53 | int minor_version; | |
54 | int patch_version; | |
26714713 | 55 | unsigned int ctime; |
64c4757e NB |
56 | int level; |
57 | int size; | |
58 | int nr_disks; | |
59 | int raid_disks; | |
60 | int md_minor; | |
61 | int not_persistent; | |
62 | ||
63 | /* | |
64 | * Generic state information | |
65 | */ | |
26714713 | 66 | unsigned int utime; /* 0 Superblock update time */ |
64c4757e NB |
67 | int state; /* 1 State bits (clean, ...) */ |
68 | int active_disks; /* 2 Number of currently active disks */ | |
69 | int working_disks; /* 3 Number of working disks */ | |
70 | int failed_disks; /* 4 Number of failed disks */ | |
71 | int spare_disks; /* 5 Number of spare disks */ | |
72 | ||
73 | /* | |
74 | * Personality information | |
75 | */ | |
76 | int layout; /* 0 the array's physical layout */ | |
77 | int chunk_size; /* 1 chunk size in bytes */ | |
78 | ||
79 | } mdu_array_info_t; | |
80 | ||
81 | typedef struct mdu_disk_info_s { | |
82 | /* | |
83 | * configuration/status of one particular disk | |
84 | */ | |
85 | int number; | |
86 | int major; | |
87 | int minor; | |
88 | int raid_disk; | |
89 | int state; | |
90 | ||
91 | } mdu_disk_info_t; | |
92 | ||
93 | typedef struct mdu_start_info_s { | |
94 | /* | |
95 | * configuration/status of one particular disk | |
96 | */ | |
97 | int major; | |
98 | int minor; | |
99 | int raid_disk; | |
100 | int state; | |
101 | ||
102 | } mdu_start_info_t; | |
103 | ||
c82f047c NB |
104 | typedef struct mdu_bitmap_file_s |
105 | { | |
106 | char pathname[4096]; | |
107 | } mdu_bitmap_file_t; | |
108 | ||
64c4757e NB |
109 | typedef struct mdu_param_s |
110 | { | |
111 | int personality; /* 1,2,3,4 */ | |
112 | int chunk_size; /* in bytes */ | |
113 | int max_fault; /* unused for now */ | |
114 | } mdu_param_t; | |
115 | ||
aba69144 | 116 | #endif |