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Updated copyright and license notices, ready for open source release
Merge of 2.3.99pre2-xfs:slinx:55821a by ananth.

/*
 * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 * 
 * This program is distributed in the hope that it would be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * Further, this software is distributed without any warranty that it is
 * free of the rightful claim of any third person regarding infringement
 * or the like.  Any license provided herein, whether implied or
 * otherwise, applies only to this software file.  Patent licenses, if
 * any, provided herein do not apply to combinations of this program with
 * other software, or any other product whatsoever.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
 * 
 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 * Mountain View, CA  94043, or:
 * 
 * http://www.sgi.com 
 * 
 * For further information regarding this notice, see: 
 * 
 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
 */
#ifndef _FS_XFS_FSOPS_H
#define	_FS_XFS_FSOPS_H

#ident	"$Revision$"

/*
 * File system growth interfaces
 */

#define	XFS_FS_GEOMETRY_V1	0	/* get filesystem geometry pre-irix6.5*/
#define	XFS_GROWFS_DATA		1	/* grow data area */
#define	XFS_GROWFS_LOG		2	/* grow log, new log is internal */
#define	XFS_GROWFS_RT		3	/* grow realtime area */
#define	XFS_FS_COUNTS		4	/* get filesystem dynamic counts */
#define	XFS_SET_RESBLKS		5	/* set reserved block count */
#define	XFS_GET_RESBLKS		6	/* get reserved block counts */
#define	XFS_FS_GEOMETRY_V2	7	/* get filesystem geometry irix6.5 */
#define	XFS_FS_GEOMETRY		8	/* get filesystem geometry>=irix6.5.3 */
#define	XFS_FSOPS_COUNT		9	/* count of operations */

/*
 * Minimum and maximum sizes need for growth checks
 */
#define	XFS_MIN_LOG_BLOCKS	512
#define	XFS_MIN_LOG_BYTES	(256 * 1024)
#define	XFS_MIN_AG_BLOCKS	64
#define	XFS_MAX_LOG_BLOCKS	(64 * 1024)
#define	XFS_MAX_LOG_BYTES	(128 * 1024 * 1024)

/*
 * Input and output structures
 */


/*
 * This version has two new fields sunit and swidth. 
 * Added in irix6.5
 */
typedef struct xfs_fsop_geom_v2
{
	__uint32_t	blocksize;	/* filesystem (data) block size */
	__uint32_t	rtextsize;	/* realtime extent size */
	__uint32_t	agblocks;	/* fsblocks in an allocation group */
	__uint32_t	agcount;	/* number of allocation groups */
	__uint32_t	logblocks;	/* fsblocks in the log */
	__uint32_t	sectsize;	/* (data) sector size, bytes */
	__uint32_t	inodesize;	/* inode size in bytes */
	__uint32_t	imaxpct;	/* max allowed space for inodes (%) */
	__uint64_t	datablocks;	/* fsblocks in the data subvolume */
	__uint64_t	rtblocks;	/* fsblocks in the realtime subvolume */
	__uint64_t	rtextents;	/* rt extents in the realtime subvol */
	__uint64_t	logstart;	/* starting fsblock of the log */
	uuid_t		uuid;		/* unique id of the filesystem */
	__uint32_t	sunit;		/* stripe unit, fsblocks */
	__uint32_t	swidth;		/* stripe width, fsblocks */
} xfs_fsop_geom_v2_t;

/*
 * This version of xfs_fsop_geom existed prior to Irix 6.5
 */
typedef struct xfs_fsop_geom_v1
{
	__uint32_t	blocksize;	/* filesystem (data) block size */
	__uint32_t	rtextsize;	/* realtime extent size */
	__uint32_t	agblocks;	/* fsblocks in an allocation group */
	__uint32_t	agcount;	/* number of allocation groups */
	__uint32_t	logblocks;	/* fsblocks in the log */
	__uint32_t	sectsize;	/* (data) sector size, bytes */
	__uint32_t	inodesize;	/* inode size in bytes */
	__uint32_t	imaxpct;	/* max allowed space for inodes (%) */
	__uint64_t	datablocks;	/* fsblocks in the data subvolume */
	__uint64_t	rtblocks;	/* fsblocks in the realtime subvolume */
	__uint64_t	rtextents;	/* rt extents in the realtime subvol */
	__uint64_t	logstart;	/* starting fsblock of the log */
	uuid_t		uuid;		/* unique id of the filesystem */
} xfs_fsop_geom_v1_t;

/* Output for XFS_FS_COUNTS */
typedef struct xfs_fsop_counts
{
	__uint64_t	freedata;	/* free data section blocks */
	__uint64_t	freertx;	/* free rt extents */
	__uint64_t	freeino;	/* free inodes */
	__uint64_t	allocino;	/* total allocated inodes */
} xfs_fsop_counts_t;

/* Output for XFS_GET_RESBLKS */
typedef struct xfs_fsop_get_resblks
{
	__uint64_t  resblks;
	__uint64_t  resblks_avail;
} xfs_fsops_getblks_t;

/* Input for growfs data op */
typedef struct xfs_growfs_data
{
	__uint64_t	newblocks;	/* new data subvol size, fsblocks */
	__uint32_t	imaxpct;	/* new inode space percentage limit */
} xfs_growfs_data_t;

/* Input for growfs log op */
typedef struct xfs_growfs_log
{
	__uint32_t	newblocks;	/* new log size, fsblocks */
	__int32_t	isint;		/* 1 if new log is internal */
} xfs_growfs_log_t;

/* Input for growfs rt op */
typedef struct xfs_growfs_rt
{
	__uint64_t	newblocks;	/* new realtime size, fsblocks */
	__uint32_t	extsize;	/* new realtime extent size, fsblocks */
} xfs_growfs_rt_t;

#ifdef _KERNEL

struct xfs_fsop_geom;

int					/* error status */
xfs_fsoperations(
	int		fd,		/* file descriptor for fs */
	int		opcode,		/* operation code */
	void		*in,		/* input structure */
	void		*out);		/* output structure */

int
xfs_fs_geometry(
	xfs_mount_t		*mp,
	struct xfs_fsop_geom	*geo,
	int			new_version);
#endif	/* _KERNEL */

#endif	/* _FS_XFS_FSOPS_H */