linux/include/net/netns/mib.h
Florian Westphal fc518953bc mptcp: add and use MIB counter infrastructure
Exported via same /proc file as the Linux TCP MIB counters, so "netstat -s"
or "nstat" will show them automatically.

The MPTCP MIB counters are allocated in a distinct pcpu area in order to
avoid bloating/wasting TCP pcpu memory.

Counters are allocated once the first MPTCP socket is created in a
network namespace and free'd on exit.

If no sockets have been allocated, all-zero mptcp counters are shown.

The MIB counter list is taken from the multipath-tcp.org kernel, but
only a few counters have been picked up so far.  The counter list can
be increased at any time later on.

v2 -> v3:
 - remove 'inline' in foo.c files (David S. Miller)

Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:14:49 -07:00

36 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NETNS_MIB_H__
#define __NETNS_MIB_H__
#include <net/snmp.h>
struct netns_mib {
DEFINE_SNMP_STAT(struct tcp_mib, tcp_statistics);
DEFINE_SNMP_STAT(struct ipstats_mib, ip_statistics);
DEFINE_SNMP_STAT(struct linux_mib, net_statistics);
DEFINE_SNMP_STAT(struct udp_mib, udp_statistics);
DEFINE_SNMP_STAT(struct udp_mib, udplite_statistics);
DEFINE_SNMP_STAT(struct icmp_mib, icmp_statistics);
DEFINE_SNMP_STAT_ATOMIC(struct icmpmsg_mib, icmpmsg_statistics);
#if IS_ENABLED(CONFIG_IPV6)
struct proc_dir_entry *proc_net_devsnmp6;
DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6);
DEFINE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
DEFINE_SNMP_STAT(struct ipstats_mib, ipv6_statistics);
DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics);
DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib, icmpv6msg_statistics);
#endif
#ifdef CONFIG_XFRM_STATISTICS
DEFINE_SNMP_STAT(struct linux_xfrm_mib, xfrm_statistics);
#endif
#if IS_ENABLED(CONFIG_TLS)
DEFINE_SNMP_STAT(struct linux_tls_mib, tls_statistics);
#endif
#ifdef CONFIG_MPTCP
DEFINE_SNMP_STAT(struct mptcp_mib, mptcp_statistics);
#endif
};
#endif