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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 RAID_AUTORUN _IO (MD_MAJOR, 0x14) | |
25 | #define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t) | |
26 | ||
27 | /* configuration */ | |
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) | |
31 | #define HOT_ADD_DISK _IO (MD_MAJOR, 0x28) | |
32 | #define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29) | |
33 | #define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int) | |
34 | ||
35 | /* usage */ | |
36 | #define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t) | |
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) | |
40 | #define CLUSTERED_DISK_NACK _IO (MD_MAJOR, 0x35) | |
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; | |
55 | unsigned int ctime; | |
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 | */ | |
66 | unsigned int utime; /* 0 Superblock update time */ | |
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 | ||
104 | typedef struct mdu_bitmap_file_s | |
105 | { | |
106 | char pathname[4096]; | |
107 | } mdu_bitmap_file_t; | |
108 | ||
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 | ||
116 | #endif |