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git.ipfire.org Git - thirdparty/mdadm.git/blob - md_u.h
2 md_u.h : user <=> kernel API between Linux raidtools and RAID drivers
3 Copyright (C) 1998 Ingo Molnar
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)
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.
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)
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)
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)
42 typedef struct mdu_version_s
{
48 typedef struct mdu_array_info_s
{
50 * Generic constant information
64 * Generic state information
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 */
74 * Personality information
76 int layout
; /* 0 the array's physical layout */
77 int chunk_size
; /* 1 chunk size in bytes */
81 typedef struct mdu_disk_info_s
{
83 * configuration/status of one particular disk
93 typedef struct mdu_start_info_s
{
95 * configuration/status of one particular disk
104 typedef struct mdu_bitmap_file_s
109 typedef struct mdu_param_s
111 int personality
; /* 1,2,3,4 */
112 int chunk_size
; /* in bytes */
113 int max_fault
; /* unused for now */