]> git.baikalelectronics.ru Git - kernel.git/commit
tcp: report ECN_SEEN in tcp_info
authorEric Dumazet <eric.dumazet@gmail.com>
Mon, 3 Oct 2011 18:01:21 +0000 (14:01 -0400)
committerDavid S. Miller <davem@davemloft.net>
Mon, 3 Oct 2011 18:01:21 +0000 (14:01 -0400)
commit6a2878882bfe8a533e957300579aa760cb819471
treee5136c3e7a6efee0453f2012882e0d95eed7672d
parentab83a9b321995045d560f92f50586c8e5309809b
tcp: report ECN_SEEN in tcp_info

Allows ss command (iproute2) to display "ecnseen" if at least one packet
with ECT(0) or ECT(1) or ECN was received by this socket.

"ecn" means ECN was negotiated at session establishment (TCP level)

"ecnseen" means we received at least one packet with ECT fields set (IP
level)

ss -i
...
ESTAB      0      0   192.168.20.110:22  192.168.20.144:38016
ino:5950 sk:f178e400
 mem:(r0,w0,f0,t0) ts sack ecn ecnseen bic wscale:7,8 rto:210
rtt:12.5/7.5 cwnd:10 send 9.3Mbps rcv_space:14480

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/tcp.h
net/ipv4/tcp.c