116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/*
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md_u.h : user <=> kernel API between Linux raidtools and RAID drivers
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Copyright (C) 1998 Ingo Molnar
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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You should have received a copy of the GNU General Public License
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(for example /usr/src/linux/COPYING); if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _MD_U_H
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#define _MD_U_H
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/* ioctls */
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/* status */
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#define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t)
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#define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t)
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#define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t)
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#define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
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#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)
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/* configuration */
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#define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t)
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#define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22)
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#define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t)
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#define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29)
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#define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int)
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/* usage */
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#define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t)
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#define STOP_ARRAY _IO (MD_MAJOR, 0x32)
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#define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33)
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#define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34)
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#define CLUSTERED_DISK_NACK _IO (MD_MAJOR, 0x35)
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typedef struct mdu_version_s {
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int major;
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int minor;
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int patchlevel;
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} mdu_version_t;
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typedef struct mdu_array_info_s {
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/*
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* Generic constant information
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*/
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int major_version;
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int minor_version;
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int patch_version;
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unsigned int ctime;
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int level;
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int size;
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int nr_disks;
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int raid_disks;
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int md_minor;
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int not_persistent;
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/*
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* Generic state information
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*/
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unsigned int utime; /* 0 Superblock update time */
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int state; /* 1 State bits (clean, ...) */
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int active_disks; /* 2 Number of currently active disks */
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int working_disks; /* 3 Number of working disks */
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int failed_disks; /* 4 Number of failed disks */
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int spare_disks; /* 5 Number of spare disks */
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/*
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* Personality information
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*/
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int layout; /* 0 the array's physical layout */
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int chunk_size; /* 1 chunk size in bytes */
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} mdu_array_info_t;
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typedef struct mdu_disk_info_s {
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/*
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* configuration/status of one particular disk
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*/
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int number;
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int major;
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int minor;
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int raid_disk;
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int state;
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} mdu_disk_info_t;
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typedef struct mdu_start_info_s {
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/*
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* configuration/status of one particular disk
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*/
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int major;
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int minor;
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int raid_disk;
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int state;
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} mdu_start_info_t;
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typedef struct mdu_bitmap_file_s
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{
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char pathname[4096];
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} mdu_bitmap_file_t;
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typedef struct mdu_param_s
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{
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int personality; /* 1,2,3,4 */
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int chunk_size; /* in bytes */
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int max_fault; /* unused for now */
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} mdu_param_t;
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#endif
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