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
49typedef struct mdu_version_s {
50	int major;
51	int minor;
52	int patchlevel;
53} mdu_version_t;
54
55typedef 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
88typedef 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
100typedef 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
111typedef struct mdu_bitmap_file_s
112{
113	char pathname[4096];
114} mdu_bitmap_file_t;
115
116typedef 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