/*
   * Copyright (c) 1995-2001,2004 Silicon Graphics, Inc.  All Rights Reserved.
   *

   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public License

   * as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   * GNU Lesser General Public License for more details.

   *

   * You should have received a copy of the GNU Lesset General Public License
   * along with this program; if not, write to the Free Software Foundation,
   * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

   */
  #ifndef _LINUX_DQBLK_XFS_H
  #define _LINUX_DQBLK_XFS_H
  
  #include <linux/types.h>
  
  /*
   * Disk quota - quotactl(2) commands for the XFS Quota Manager (XQM).
   */
  
  #define XQM_CMD(x)	(('X'<<8)+(x))	/* note: forms first QCMD argument */
  #define XQM_COMMAND(x)	(((x) & (0xff<<8)) == ('X'<<8))	/* test if for XFS */
  
  #define XQM_USRQUOTA	0	/* system call user quota type */
  #define XQM_GRPQUOTA	1	/* system call group quota type */

  #define XQM_PRJQUOTA	2	/* system call project quota type */
  #define XQM_MAXQUOTAS	3

  
  #define Q_XQUOTAON	XQM_CMD(1)	/* enable accounting/enforcement */
  #define Q_XQUOTAOFF	XQM_CMD(2)	/* disable accounting/enforcement */
  #define Q_XGETQUOTA	XQM_CMD(3)	/* get disk limits and usage */
  #define Q_XSETQLIM	XQM_CMD(4)	/* set disk limits */
  #define Q_XGETQSTAT	XQM_CMD(5)	/* get quota subsystem status */
  #define Q_XQUOTARM	XQM_CMD(6)	/* free disk space used by dquots */

  #define Q_XQUOTASYNC	XQM_CMD(7)	/* delalloc flush, updates dquots */

  
  /*
   * fs_disk_quota structure:
   *
   * This contains the current quota information regarding a user/proj/group.
   * It is 64-bit aligned, and all the blk units are in BBs (Basic Blocks) of
   * 512 bytes.
   */
  #define FS_DQUOT_VERSION	1	/* fs_disk_quota.d_version */
  typedef struct fs_disk_quota {
  	__s8		d_version;	/* version of this structure */

  	__s8		d_flags;	/* FS_{USER,PROJ,GROUP}_QUOTA */

  	__u16		d_fieldmask;	/* field specifier */
  	__u32		d_id;		/* user, project, or group ID */
  	__u64		d_blk_hardlimit;/* absolute limit on disk blks */
  	__u64		d_blk_softlimit;/* preferred limit on disk blks */
  	__u64		d_ino_hardlimit;/* maximum # allocated inodes */
  	__u64		d_ino_softlimit;/* preferred inode limit */
  	__u64		d_bcount;	/* # disk blocks owned by the user */
  	__u64		d_icount;	/* # inodes owned by the user */
  	__s32		d_itimer;	/* zero if within inode limits */
  					/* if not, we refuse service */
  	__s32		d_btimer;	/* similar to above; for disk blocks */
  	__u16	  	d_iwarns;       /* # warnings issued wrt num inodes */
  	__u16	  	d_bwarns;       /* # warnings issued wrt disk blocks */
  	__s32		d_padding2;	/* padding2 - for future use */
  	__u64		d_rtb_hardlimit;/* absolute limit on realtime blks */
  	__u64		d_rtb_softlimit;/* preferred limit on RT disk blks */
  	__u64		d_rtbcount;	/* # realtime blocks owned */
  	__s32		d_rtbtimer;	/* similar to above; for RT disk blks */
  	__u16	  	d_rtbwarns;     /* # warnings issued wrt RT disk blks */
  	__s16		d_padding3;	/* padding3 - for future use */	
  	char		d_padding4[8];	/* yet more padding */
  } fs_disk_quota_t;
  
  /*
   * These fields are sent to Q_XSETQLIM to specify fields that need to change.
   */
  #define FS_DQ_ISOFT	(1<<0)
  #define FS_DQ_IHARD	(1<<1)
  #define FS_DQ_BSOFT	(1<<2)
  #define FS_DQ_BHARD 	(1<<3)
  #define FS_DQ_RTBSOFT	(1<<4)
  #define FS_DQ_RTBHARD	(1<<5)
  #define FS_DQ_LIMIT_MASK	(FS_DQ_ISOFT | FS_DQ_IHARD | FS_DQ_BSOFT | \
  				 FS_DQ_BHARD | FS_DQ_RTBSOFT | FS_DQ_RTBHARD)
  /*
   * These timers can only be set in super user's dquot. For others, timers are
   * automatically started and stopped. Superusers timer values set the limits
   * for the rest.  In case these values are zero, the DQ_{F,B}TIMELIMIT values
   * defined below are used. 
   * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
   */
  #define FS_DQ_BTIMER	(1<<6)
  #define FS_DQ_ITIMER	(1<<7)
  #define FS_DQ_RTBTIMER 	(1<<8)
  #define FS_DQ_TIMER_MASK	(FS_DQ_BTIMER | FS_DQ_ITIMER | FS_DQ_RTBTIMER)
  
  /*
   * Warning counts are set in both super user's dquot and others. For others,
   * warnings are set/cleared by the administrators (or automatically by going
   * below the soft limit).  Superusers warning values set the warning limits
   * for the rest.  In case these values are zero, the DQ_{F,B}WARNLIMIT values
   * defined below are used. 
   * These values also apply only to the d_fieldmask field for Q_XSETQLIM.
   */
  #define FS_DQ_BWARNS	(1<<9)
  #define FS_DQ_IWARNS	(1<<10)
  #define FS_DQ_RTBWARNS	(1<<11)
  #define FS_DQ_WARNS_MASK	(FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS)
  
  /*

   * Accounting values.  These can only be set for filesystem with
   * non-transactional quotas that require quotacheck(8) in userspace.
   */
  #define FS_DQ_BCOUNT		(1<<12)
  #define FS_DQ_ICOUNT		(1<<13)
  #define FS_DQ_RTBCOUNT		(1<<14)
  #define FS_DQ_ACCT_MASK		(FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT)
  
  /*

   * Various flags related to quotactl(2).

   */

  #define FS_QUOTA_UDQ_ACCT	(1<<0)  /* user quota accounting */
  #define FS_QUOTA_UDQ_ENFD	(1<<1)  /* user quota limits enforcement */
  #define FS_QUOTA_GDQ_ACCT	(1<<2)  /* group quota accounting */
  #define FS_QUOTA_GDQ_ENFD	(1<<3)  /* group quota limits enforcement */
  #define FS_QUOTA_PDQ_ACCT	(1<<4)  /* project quota accounting */
  #define FS_QUOTA_PDQ_ENFD	(1<<5)  /* project quota limits enforcement */

  #define FS_USER_QUOTA		(1<<0)	/* user quota type */
  #define FS_PROJ_QUOTA		(1<<1)	/* project quota type */
  #define FS_GROUP_QUOTA		(1<<2)	/* group quota type */

  
  /*
   * fs_quota_stat is the struct returned in Q_XGETQSTAT for a given file system.

   * Provides a centralized way to get meta information about the quota subsystem.

   * eg. space taken up for user and group quotas, number of dquots currently
   * incore.
   */
  #define FS_QSTAT_VERSION	1	/* fs_quota_stat.qs_version */
  
  /*

   * Some basic information about 'quota files'.

   */
  typedef struct fs_qfilestat {
  	__u64		qfs_ino;	/* inode number */
  	__u64		qfs_nblks;	/* number of BBs 512-byte-blks */
  	__u32		qfs_nextents;	/* number of extents */
  } fs_qfilestat_t;
  
  typedef struct fs_quota_stat {
  	__s8		qs_version;	/* version number for future changes */

  	__u16		qs_flags;	/* FS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */

  	__s8		qs_pad;		/* unused */
  	fs_qfilestat_t	qs_uquota;	/* user quota storage information */
  	fs_qfilestat_t	qs_gquota;	/* group quota storage information */
  	__u32		qs_incoredqs;	/* number of dquots incore */
  	__s32		qs_btimelimit;  /* limit for blks timer */	
  	__s32		qs_itimelimit;  /* limit for inodes timer */	
  	__s32		qs_rtbtimelimit;/* limit for rt blks timer */	
  	__u16		qs_bwarnlimit;	/* limit for num warnings */
  	__u16		qs_iwarnlimit;	/* limit for num warnings */
  } fs_quota_stat_t;
  
  #endif	/* _LINUX_DQBLK_XFS_H */