From 32efcc06d2a15fa87585614d12d6c2308cc2d3f3 Mon Sep 17 00:00:00 2001 From: Abdul Kabbani Date: Fri, 24 Jan 2020 16:34:02 -0500 Subject: tcp: export count for rehash attempts Using IPv6 flow-label to swiftly route around avoid congested or disconnected network path can greatly improve TCP reliability. This patch adds SNMP counters and a OPT_STATS counter to track both host-level and connection-level statistics. Network administrators can use these counters to evaluate the impact of this new ability better. Export count for rehash attempts to 1) two SNMP counters: TcpTimeoutRehash (rehash due to timeouts), and TcpDuplicateDataRehash (rehash due to receiving duplicate packets) 2) Timestamping API SOF_TIMESTAMPING_OPT_STATS. Signed-off-by: Abdul Kabbani Signed-off-by: Neal Cardwell Signed-off-by: Yuchung Cheng Signed-off-by: Kevin(Yudong) Yang Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/uapi/linux/snmp.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi/linux/snmp.h') diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h index 7eee233e78d2..7d91f4debc48 100644 --- a/include/uapi/linux/snmp.h +++ b/include/uapi/linux/snmp.h @@ -285,6 +285,8 @@ enum LINUX_MIB_TCPRCVQDROP, /* TCPRcvQDrop */ LINUX_MIB_TCPWQUEUETOOBIG, /* TCPWqueueTooBig */ LINUX_MIB_TCPFASTOPENPASSIVEALTKEY, /* TCPFastOpenPassiveAltKey */ + LINUX_MIB_TCPTIMEOUTREHASH, /* TCPTimeoutRehash */ + LINUX_MIB_TCPDUPLICATEDATAREHASH, /* TCPDuplicateDataRehash */ __LINUX_MIB_MAX }; -- cgit v1.3.1