diff options
| author |   Eric Dumazet <edumazet@google.com> | 2015-05-06 14:26:25 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-05-09 16:42:32 -0400 |
| commit | e520af48c7e5acae5f17f82a79ba7ab7cf156f3b (patch) | |
| tree | 45729a77a2017ec24e8185e7279b97a2019f87fe /include/net/tcp.h | |
| parent | tcp: adjust window probe timers to safer values (diff) | |
| download | linux-dev-e520af48c7e5acae5f17f82a79ba7ab7cf156f3b.tar.xz linux-dev-e520af48c7e5acae5f17f82a79ba7ab7cf156f3b.zip | |
tcp: add TCPWinProbe and TCPKeepAlive SNMP counters
Diagnosing problems related to Window Probes has been hard because
we lack a counter.
TCPWinProbe counts the number of ACK packets a sender has to send
at regular intervals to make sure a reverse ACK packet opening back
a window had not been lost.
TCPKeepAlive counts the number of ACK packets sent to keep TCP
flows alive (SO_KEEPALIVE)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 7a2248a35b13..b8ea12880fd9 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -527,7 +527,7 @@ int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int, gfp_t); void tcp_send_probe0(struct sock *); void tcp_send_partial(struct sock *); -int tcp_write_wakeup(struct sock *); +int tcp_write_wakeup(struct sock *, int mib); void tcp_send_fin(struct sock *sk); void tcp_send_active_reset(struct sock *sk, gfp_t priority); int tcp_send_synack(struct sock *); |