diff options
| author | Fan Du <fan.du@intel.com> | 2015-02-10 09:53:16 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-02-09 18:45:00 -0800 |
| commit | b0f9ca53cbb103e9240a29a974e0b6085e58f9f7 (patch) | |
| tree | 219e761b507aa959e6fd38c79adf3f9bc4be4b4d /net/ipv4/tcp_ipv4.c | |
| parent | f217d6ca4a8cde473358637aa29daaaa3d0b57a9 (diff) | |
| download | linux-b0f9ca53cbb103e9240a29a974e0b6085e58f9f7.tar.bz2 | |
ipv4: Namespecify TCP PMTU mechanism
Packetization Layer Path MTU Discovery works separately beside
Path MTU Discovery at IP level, different net namespace has
various requirements on which one to chose, e.g., a virutalized
container instance would require TCP PMTU to probe an usable
effective mtu for underlying tunnel, while the host would
employ classical ICMP based PMTU to function.
Hence making TCP PMTU mechanism per net namespace to decouple
two functionality. Furthermore the probe base MSS should also
be configured separately for each namespace.
Signed-off-by: Fan Du <fan.du@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 67bc95fb5d9e..5a2dfed4783b 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2459,6 +2459,7 @@ static int __net_init tcp_sk_init(struct net *net) *per_cpu_ptr(net->ipv4.tcp_sk, cpu) = sk; } net->ipv4.sysctl_tcp_ecn = 2; + net->ipv4.sysctl_tcp_base_mss = TCP_BASE_MSS; return 0; fail: |