diff options
| author |   Florian Westphal <fw@strlen.de> | 2020-03-27 14:48:50 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-03-29 22:14:49 -0700 |
| commit | fc518953bc9c8d7d33c6ab261995f5038f3c87f9 (patch) | |
| tree | 9c4eebd575e693916feb8d234411d08a17ec430a /include/net/netns | |
| parent | mptcp: allow dumping subflow context to userspace (diff) | |
| download | wireguard-linux-fc518953bc9c8d7d33c6ab261995f5038f3c87f9.tar.xz wireguard-linux-fc518953bc9c8d7d33c6ab261995f5038f3c87f9.zip | |
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>
Diffstat (limited to 'include/net/netns')
| -rw-r--r-- | include/net/netns/mib.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/netns/mib.h b/include/net/netns/mib.h index b5fdb108d602..59b2c3a3db42 100644 --- a/include/net/netns/mib.h +++ b/include/net/netns/mib.h @@ -27,6 +27,9 @@ struct netns_mib { #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 |