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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#ifndef __LIBXFS_TOPOLOGY_H__
#define __LIBXFS_TOPOLOGY_H__
/*
* Device topology information.
*/
struct device_topology {
int logical_sector_size; /* logical sector size */
int physical_sector_size; /* physical sector size */
int sunit; /* stripe unit */
int swidth; /* stripe width */
int awu_min; /* min atomic write unit in bbcounts */
int awu_max; /* max atomic write unit in bbcounts */
};
struct fs_topology {
struct device_topology data;
struct device_topology rt;
struct device_topology log;
};
void
get_topology(
struct libxfs_init *xi,
struct fs_topology *ft,
int force_overwrite);
extern void
calc_default_ag_geometry(
int blocklog,
uint64_t dblocks,
int multidisk,
uint64_t *agsize,
uint64_t *agcount);
void calc_default_rtgroup_geometry(int blocklog, uint64_t rblocks,
uint64_t *rgsize, uint64_t *rgcount);
extern int
check_overwrite(
const char *device);
#endif /* __LIBXFS_TOPOLOGY_H__ */
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