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/*
* nfsiostat: Report NFS I/O statistics
* Copyright (C) 2010 Red Hat, Inc. All Rights Reserved
* Written by Ivana Varekova <varekova@redhat.com>
*/
#ifndef _NFSIOSTAT_H
#define _NFSIOSTAT_H
#include "common.h"
#define NFSMOUNTSTATS "/proc/self/mountstats"
/* I_: iostat - D_: Display - F_: Flag */
#define I_D_TIMESTAMP 0x001
#define I_D_KILOBYTES 0x002
#define I_D_MEGABYTES 0x004
#define I_D_ISO 0x008
#define I_D_HUMAN_READ 0x010
#define I_D_DEBUG 0x020
#define DISPLAY_TIMESTAMP(m) (((m) & I_D_TIMESTAMP) == I_D_TIMESTAMP)
#define DISPLAY_KILOBYTES(m) (((m) & I_D_KILOBYTES) == I_D_KILOBYTES)
#define DISPLAY_MEGABYTES(m) (((m) & I_D_MEGABYTES) == I_D_MEGABYTES)
#define DISPLAY_ISO(m) (((m) & I_D_ISO) == I_D_ISO)
#define DISPLAY_HUMAN_READ(m) (((m) & I_D_HUMAN_READ) == I_D_HUMAN_READ)
#define DISPLAY_DEBUG(m) (((m) & I_D_DEBUG) == I_D_DEBUG)
/* Environment variable */
#define ENV_POSIXLY_CORRECT "POSIXLY_CORRECT"
/* Preallocation constats */
#define NR_NFS_PREALLOC 2
struct io_nfs_stats {
unsigned long long rd_normal_bytes __attribute__ ((aligned (8)));
unsigned long long wr_normal_bytes __attribute__ ((packed));
unsigned long long rd_direct_bytes __attribute__ ((packed));
unsigned long long wr_direct_bytes __attribute__ ((packed));
unsigned long long rd_server_bytes __attribute__ ((packed));
unsigned long long wr_server_bytes __attribute__ ((packed));
unsigned long rpc_sends __attribute__ ((packed));
unsigned long nfs_rops __attribute__ ((packed));
unsigned long nfs_wops __attribute__ ((packed));
};
#define IO_NFS_STATS_SIZE (sizeof(struct io_nfs_stats))
struct io_hdr_stats {
unsigned int active __attribute__ ((aligned (4)));
unsigned int used __attribute__ ((packed));
char name[MAX_NAME_LEN];
};
#define IO_HDR_STATS_SIZE (sizeof(struct io_hdr_stats))
#endif /* _NFSIOSTAT_H */
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