[thirdparty/mdadm.git] / md_u.h

/*
   md_u.h : user <=> kernel API between Linux raidtools and RAID drivers
          Copyright (C) 1998 Ingo Molnar

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   You should have received a copy of the GNU General Public License
   (for example /usr/src/linux/COPYING); if not, write to the Free
   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef _MD_U_H
#define _MD_U_H

/* ioctls */

/* status */
#define RAID_VERSION		_IOR (MD_MAJOR, 0x10, mdu_version_t)
#define GET_ARRAY_INFO		_IOR (MD_MAJOR, 0x11, mdu_array_info_t)
#define GET_DISK_INFO		_IOR (MD_MAJOR, 0x12, mdu_disk_info_t)
#define RAID_AUTORUN		_IO (MD_MAJOR, 0x14)
#define GET_BITMAP_FILE		_IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)

/* configuration */
#define ADD_NEW_DISK		_IOW (MD_MAJOR, 0x21, mdu_disk_info_t)
#define HOT_REMOVE_DISK		_IO (MD_MAJOR, 0x22)
#define SET_ARRAY_INFO		_IOW (MD_MAJOR, 0x23, mdu_array_info_t)
#define SET_DISK_FAULTY		_IO (MD_MAJOR, 0x29)
#define SET_BITMAP_FILE		_IOW (MD_MAJOR, 0x2b, int)

/* usage */
#define RUN_ARRAY		_IOW (MD_MAJOR, 0x30, mdu_param_t)
#define STOP_ARRAY		_IO (MD_MAJOR, 0x32)
#define STOP_ARRAY_RO		_IO (MD_MAJOR, 0x33)
#define RESTART_ARRAY_RW	_IO (MD_MAJOR, 0x34)
#define CLUSTERED_DISK_NACK	_IO (MD_MAJOR, 0x35)

typedef struct mdu_version_s {
	int major;
	int minor;
	int patchlevel;
} mdu_version_t;

typedef struct mdu_array_info_s {
	/*
	 * Generic constant information
	 */
	int major_version;
	int minor_version;
	int patch_version;
	unsigned int ctime;
	int level;
	int size;
	int nr_disks;
	int raid_disks;
	int md_minor;
	int not_persistent;

	/*
	 * Generic state information
	 */
	unsigned int utime;	/*  0 Superblock update time		      */
	int state;		/*  1 State bits (clean, ...)		      */
	int active_disks;	/*  2 Number of currently active disks	      */
	int working_disks;	/*  3 Number of working disks		      */
	int failed_disks;	/*  4 Number of failed disks		      */
	int spare_disks;	/*  5 Number of spare disks		      */

	/*
	 * Personality information
	 */
	int layout;		/*  0 the array's physical layout	      */
	int chunk_size;	/*  1 chunk size in bytes		      */

} mdu_array_info_t;

typedef struct mdu_disk_info_s {
	/*
	 * configuration/status of one particular disk
	 */
	int number;
	int major;
	int minor;
	int raid_disk;
	int state;

} mdu_disk_info_t;

typedef struct mdu_start_info_s {
	/*
	 * configuration/status of one particular disk
	 */
	int major;
	int minor;
	int raid_disk;
	int state;

} mdu_start_info_t;

typedef struct mdu_bitmap_file_s
{
	char pathname[4096];
} mdu_bitmap_file_t;

typedef struct mdu_param_s
{
	int			personality;	/* 1,2,3,4 */
	int			chunk_size;	/* in bytes */
	int			max_fault;	/* unused for now */
} mdu_param_t;

#endif
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
aba69144	4
64c4757e NB	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.
aba69144	9
64c4757e NB	10	You should have received a copy of the GNU General Public License
64c4757e NB	11	(for example /usr/src/linux/COPYING); if not, write to the Free
aba69144	12	Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
64c4757e NB	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)
64c4757e	24	#define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
c82f047c	25	#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)
64c4757e NB	26
64c4757e NB	27	/* configuration */
64c4757e NB	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)
64c4757e	31	#define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29)
c82f047c	32	#define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int)
64c4757e NB	33
	34	/* usage */
	35	#define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t)
64c4757e NB	36	#define STOP_ARRAY _IO (MD_MAJOR, 0x32)
	37	#define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33)
	38	#define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34)
4de90913	39	#define CLUSTERED_DISK_NACK _IO (MD_MAJOR, 0x35)
64c4757e NB	40
	41	typedef struct mdu_version_s {
	42	int major;
	43	int minor;
	44	int patchlevel;
	45	} mdu_version_t;
	46
	47	typedef struct mdu_array_info_s {
	48	/*
	49	* Generic constant information
	50	*/
	51	int major_version;
	52	int minor_version;
	53	int patch_version;
26714713	54	unsigned int ctime;
64c4757e NB	55	int level;
	56	int size;
	57	int nr_disks;
	58	int raid_disks;
	59	int md_minor;
	60	int not_persistent;
	61
	62	/*
	63	* Generic state information
	64	*/
26714713	65	unsigned int utime; /* 0 Superblock update time */
64c4757e NB	66	int state; /* 1 State bits (clean, ...) */
	67	int active_disks; /* 2 Number of currently active disks */
	68	int working_disks; /* 3 Number of working disks */
	69	int failed_disks; /* 4 Number of failed disks */
	70	int spare_disks; /* 5 Number of spare disks */
	71
	72	/*
	73	* Personality information
	74	*/
	75	int layout; /* 0 the array's physical layout */
	76	int chunk_size; /* 1 chunk size in bytes */
	77
	78	} mdu_array_info_t;
	79
	80	typedef struct mdu_disk_info_s {
	81	/*
	82	* configuration/status of one particular disk
	83	*/
	84	int number;
	85	int major;
	86	int minor;
	87	int raid_disk;
	88	int state;
	89
	90	} mdu_disk_info_t;
	91
	92	typedef struct mdu_start_info_s {
	93	/*
	94	* configuration/status of one particular disk
	95	*/
	96	int major;
	97	int minor;
	98	int raid_disk;
	99	int state;
	100
	101	} mdu_start_info_t;
	102
c82f047c NB	103	typedef struct mdu_bitmap_file_s
	104	{
	105	char pathname[4096];
	106	} mdu_bitmap_file_t;
	107
64c4757e NB	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
aba69144	115	#endif