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 HOT_GENERATE_ERROR _IO (MD_MAJOR, 0x2a) 40 #define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int) 41 42 /* usage */ 43 #define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t) 44 #define START_ARRAY _IO (MD_MAJOR, 0x31) 45 #define STOP_ARRAY _IO (MD_MAJOR, 0x32) 46 #define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33) 47 #define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34) 48 49 typedef struct mdu_version_s { 50 int major; 51 int minor; 52 int patchlevel; 53 } mdu_version_t; 54 55 typedef struct mdu_array_info_s { 56 /* 57 * Generic constant information 58 */ 59 int major_version; 60 int minor_version; 61 int patch_version; 62 int ctime; 63 int level; 64 int size; 65 int nr_disks; 66 int raid_disks; 67 int md_minor; 68 int not_persistent; 69 70 /* 71 * Generic state information 72 */ 73 int utime; /* 0 Superblock update time */ 74 int state; /* 1 State bits (clean, ...) */ 75 int active_disks; /* 2 Number of currently active disks */ 76 int working_disks; /* 3 Number of working disks */ 77 int failed_disks; /* 4 Number of failed disks */ 78 int spare_disks; /* 5 Number of spare disks */ 79 80 /* 81 * Personality information 82 */ 83 int layout; /* 0 the array's physical layout */ 84 int chunk_size; /* 1 chunk size in bytes */ 85 86 } mdu_array_info_t; 87 88 typedef struct mdu_disk_info_s { 89 /* 90 * configuration/status of one particular disk 91 */ 92 int number; 93 int major; 94 int minor; 95 int raid_disk; 96 int state; 97 98 } mdu_disk_info_t; 99 100 typedef struct mdu_start_info_s { 101 /* 102 * configuration/status of one particular disk 103 */ 104 int major; 105 int minor; 106 int raid_disk; 107 int state; 108 109 } mdu_start_info_t; 110 111 typedef struct mdu_bitmap_file_s 112 { 113 char pathname[4096]; 114 } mdu_bitmap_file_t; 115 116 typedef struct mdu_param_s 117 { 118 int personality; /* 1,2,3,4 */ 119 int chunk_size; /* in bytes */ 120 int max_fault; /* unused for now */ 121 } mdu_param_t; 122 123 #endif 124 125