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| author | Florian Westphal <fw@strlen.de> | 2014-02-25 14:34:32 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-26 15:23:30 -0500 |
| commit | 8e165e20348b53583f6c6cb45865b89209f4aa13 (patch) | |
| tree | 26eab521fe1c2ac3aca539d832d747f2c42bc930 /net/ipv4/proc.c | |
| parent | 2ebe21fdde1c92ef1654f23d29194145be0e1ddc (diff) | |
| download | linux-stable-8e165e20348b53583f6c6cb45865b89209f4aa13.tar.gz linux-stable-8e165e20348b53583f6c6cb45865b89209f4aa13.tar.bz2 linux-stable-8e165e20348b53583f6c6cb45865b89209f4aa13.zip | |
net: tcp: add mib counters to track zero window transitions
Three counters are added:
- one to track when we went from non-zero to zero window
- one to track the reverse
- one counter incremented when we want to announce zero window,
but can't because we would shrink current window.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-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.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index a6c8a80ec9d6..99d2e9b6fac9 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -280,6 +280,9 @@ static const struct snmp_mib snmp4_net_list[] = { SNMP_MIB_ITEM("TCPSpuriousRtxHostQueues", LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES), SNMP_MIB_ITEM("BusyPollRxPackets", LINUX_MIB_BUSYPOLLRXPACKETS), SNMP_MIB_ITEM("TCPAutoCorking", LINUX_MIB_TCPAUTOCORKING), + SNMP_MIB_ITEM("TCPFromZeroWindowAdv", LINUX_MIB_TCPFROMZEROWINDOWADV), + SNMP_MIB_ITEM("TCPToZeroWindowAdv", LINUX_MIB_TCPTOZEROWINDOWADV), + SNMP_MIB_ITEM("TCPWantZeroWindowAdv", LINUX_MIB_TCPWANTZEROWINDOWADV), SNMP_MIB_SENTINEL }; |