projects / thirdparty / mdadm.git / blame
| Commit | Line | Data |
|---|---|---|
| 64c4757e NB |
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 | ||
| 27 | /* configuration */ | |
| 28 | #define CLEAR_ARRAY _IO (MD_MAJOR, 0x20) | |
| 29 | #define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t) | |
| 30 | #define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22) | |
| 31 | #define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t) | |
| 32 | #define SET_DISK_INFO _IO (MD_MAJOR, 0x24) | |
| 33 | #define WRITE_RAID_INFO _IO (MD_MAJOR, 0x25) | |
| 34 | #define UNPROTECT_ARRAY _IO (MD_MAJOR, 0x26) | |
| 35 | #define PROTECT_ARRAY _IO (MD_MAJOR, 0x27) | |
| 36 | #define HOT_ADD_DISK _IO (MD_MAJOR, 0x28) | |
| 37 | #define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29) | |
| 38 | ||
| 39 | /* usage */ | |
| 40 | #define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t) | |
| 41 | #define START_ARRAY _IO (MD_MAJOR, 0x31) | |
| 42 | #define STOP_ARRAY _IO (MD_MAJOR, 0x32) | |
| 43 | #define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33) | |
| 44 | #define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34) | |
| 45 | ||
| 46 | typedef struct mdu_version_s { | |
| 47 | int major; | |
| 48 | int minor; | |
| 49 | int patchlevel; | |
| 50 | } mdu_version_t; | |
| 51 | ||
| 52 | typedef struct mdu_array_info_s { | |
| 53 | /* | |
| 54 | * Generic constant information | |
| 55 | */ | |
| 56 | int major_version; | |
| 57 | int minor_version; | |
| 58 | int patch_version; | |
| 59 | int ctime; | |
| 60 | int level; | |
| 61 | int size; | |
| 62 | int nr_disks; | |
| 63 | int raid_disks; | |
| 64 | int md_minor; | |
| 65 | int not_persistent; | |
| 66 | ||
| 67 | /* | |
| 68 | * Generic state information | |
| 69 | */ | |
| 70 | int utime; /* 0 Superblock update time */ | |
| 71 | int state; /* 1 State bits (clean, ...) */ | |
| 72 | int active_disks; /* 2 Number of currently active disks */ | |
| 73 | int working_disks; /* 3 Number of working disks */ | |
| 74 | int failed_disks; /* 4 Number of failed disks */ | |
| 75 | int spare_disks; /* 5 Number of spare disks */ | |
| 76 | ||
| 77 | /* | |
| 78 | * Personality information | |
| 79 | */ | |
| 80 | int layout; /* 0 the array's physical layout */ | |
| 81 | int chunk_size; /* 1 chunk size in bytes */ | |
| 82 | ||
| 83 | } mdu_array_info_t; | |
| 84 | ||
| 85 | typedef struct mdu_disk_info_s { | |
| 86 | /* | |
| 87 | * configuration/status of one particular disk | |
| 88 | */ | |
| 89 | int number; | |
| 90 | int major; | |
| 91 | int minor; | |
| 92 | int raid_disk; | |
| 93 | int state; | |
| 94 | ||
| 95 | } mdu_disk_info_t; | |
| 96 | ||
| 97 | typedef struct mdu_start_info_s { | |
| 98 | /* | |
| 99 | * configuration/status of one particular disk | |
| 100 | */ | |
| 101 | int major; | |
| 102 | int minor; | |
| 103 | int raid_disk; | |
| 104 | int state; | |
| 105 | ||
| 106 | } mdu_start_info_t; | |
| 107 | ||
| 108 | typedef struct mdu_param_s | |
| 109 | { | |
| 110 | int personality; /* 1,2,3,4 */ | |
| 111 | int chunk_size; /* in bytes */ | |
| 112 | int max_fault; /* unused for now */ | |
| 113 | } mdu_param_t; | |
| 114 | ||
| 115 | #endif | |
| 116 |