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authorEric Dumazet <edumazet@google.com>2012-07-16 01:41:36 +0000
committerDavid S. Miller <davem@davemloft.net>2012-07-16 22:12:00 -0700
commita6df1ae9383697c4eb1365176002f154982325ad (patch)
tree8afa8c1407bebeef9774dd673cef9d36efed07bd /net/ipv4/proc.c
parent141e369de698f2e17bf716b83fcc647ddcb2220c (diff)
downloadlinux-a6df1ae9383697c4eb1365176002f154982325ad.tar.bz2
tcp: add OFO snmp counters
Add three SNMP TCP counters, to better track TCP behavior at global stage (netstat -s), when packets are received Out Of Order (OFO) TCPOFOQueue : Number of packets queued in OFO queue TCPOFODrop : Number of packets meant to be queued in OFO but dropped because socket rcvbuf limit hit. TCPOFOMerge : Number of packets in OFO that were merged with other packets. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/proc.c')
-rw-r--r--net/ipv4/proc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 8af0d44e4e22..dae25e7622cf 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -258,6 +258,9 @@ static const struct snmp_mib snmp4_net_list[] = {
SNMP_MIB_ITEM("TCPReqQFullDrop", LINUX_MIB_TCPREQQFULLDROP),
SNMP_MIB_ITEM("TCPRetransFail", LINUX_MIB_TCPRETRANSFAIL),
SNMP_MIB_ITEM("TCPRcvCoalesce", LINUX_MIB_TCPRCVCOALESCE),
+ SNMP_MIB_ITEM("TCPOFOQueue", LINUX_MIB_TCPOFOQUEUE),
+ SNMP_MIB_ITEM("TCPOFODrop", LINUX_MIB_TCPOFODROP),
+ SNMP_MIB_ITEM("TCPOFOMerge", LINUX_MIB_TCPOFOMERGE),
SNMP_MIB_SENTINEL
};