md_u.h
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上传日期:2013-02-24
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- /*
- 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 PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13)
- #define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
- /* configuration */
- #define CLEAR_ARRAY _IO (MD_MAJOR, 0x20)
- #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_INFO _IO (MD_MAJOR, 0x24)
- #define WRITE_RAID_INFO _IO (MD_MAJOR, 0x25)
- #define UNPROTECT_ARRAY _IO (MD_MAJOR, 0x26)
- #define PROTECT_ARRAY _IO (MD_MAJOR, 0x27)
- #define HOT_ADD_DISK _IO (MD_MAJOR, 0x28)
- #define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29)
- #define HOT_GENERATE_ERROR _IO (MD_MAJOR, 0x2a)
- /* usage */
- #define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t)
- #define START_ARRAY _IO (MD_MAJOR, 0x31)
- #define STOP_ARRAY _IO (MD_MAJOR, 0x32)
- #define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33)
- #define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34)
- 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;
- int ctime;
- int level;
- int size;
- int nr_disks;
- int raid_disks;
- int md_minor;
- int not_persistent;
- /*
- * Generic state information
- */
- 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_param_s
- {
- int personality; /* 1,2,3,4 */
- int chunk_size; /* in bytes */
- int max_fault; /* unused for now */
- } mdu_param_t;
- #endif