From fb223502ec0889444965f602f57b1f45f9e9845e Mon Sep 17 00:00:00 2001 From: Yafang Shao Date: Sun, 24 Jun 2018 10:02:54 -0400 Subject: tcp: add SNMP counter for zero-window drops It will be helpful if we could display the drops due to zero window or no enough window space. So a new SNMP MIB entry is added to track this behavior. This entry is named LINUX_MIB_TCPZEROWINDOWDROP and published in /proc/net/netstat in TcpExt line as TCPZeroWindowDrop. Signed-off-by: Yafang Shao Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/proc.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/ipv4/proc.c') diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index 77350c1256ce..225ef3433fe5 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -287,6 +287,7 @@ static const struct snmp_mib snmp4_net_list[] = { SNMP_MIB_ITEM("TCPDelivered", LINUX_MIB_TCPDELIVERED), SNMP_MIB_ITEM("TCPDeliveredCE", LINUX_MIB_TCPDELIVEREDCE), SNMP_MIB_ITEM("TCPAckCompressed", LINUX_MIB_TCPACKCOMPRESSED), + SNMP_MIB_ITEM("TCPZeroWindowDrop", LINUX_MIB_TCPZEROWINDOWDROP), SNMP_MIB_SENTINEL }; -- cgit v1.2.3