David Wragg 7e059158d5 vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices ... Prior to 4.3, openvswitch tunnel vports (vxlan, gre and geneve) could transmit vxlan packets of any size, constrained only by the ability to send out the resulting packets. 4.3 introduced netdevs corresponding to tunnel vports. These netdevs have an MTU, which limits the size of a packet that can be successfully encapsulated. The default MTU values are low (1500 or less), which is awkwardly small in the context of physical networks supporting jumbo frames, and leads to a conspicuous change in behaviour for userspace. Instead, set the MTU on openvswitch-created netdevs to be the relevant maximum (i.e. the maximum IP packet size minus any relevant overhead), effectively restoring the behaviour prior to 4.3. Signed-off-by: David Wragg <david@weave.works> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-02-10 05:50:03 -05:00
..
netfilter	inet: frag: Always orphan skbs inside ip_defrag()	2016-01-28 16:00:46 -08:00
Kconfig	ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV	2016-01-25 10:45:41 -08:00
Makefile	net: drop tcp_memcontrol.c	2016-01-20 17:09:18 -08:00
af_inet.c	net: add validation for the socket syscall protocol argument	2015-12-14 16:09:30 -05:00
ah4.c	ah4: Fix error return in ah_input().	2015-08-25 13:38:50 -07:00
arp.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-20 06:08:27 -07:00
cipso_ipv4.c	ipv4: coding style: comparison for inequality with NULL	2015-04-03 12:11:15 -04:00
datagram.c	net: Set sk_txhash from a random number	2015-07-29 22:44:04 -07:00
devinet.c	netlink: Rightsize IFLA_AF_SPEC size calculation	2015-10-21 19:15:20 -07:00
esp4.c	esp4: Switch to new AEAD interface	2015-05-28 11:23:20 +08:00
fib_frontend.c	net: Flush local routes when device changes vrf association	2015-12-13 23:58:44 -05:00
fib_lookup.h	ipv4: consider TOS in fib_select_default	2015-07-24 22:46:11 -07:00
fib_rules.c	net: ipv6: use common fib_default_rule_pref	2015-09-09 14:19:50 -07:00
fib_semantics.c	net: Fix prefsrc lookups	2015-11-04 21:34:37 -05:00
fib_trie.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-02-01 15:56:08 -08:00
fou.c	udp: restrict offloads to one namespace	2016-01-10 17:28:24 -05:00
gre_demux.c	gre: Remove support for sharing GRE protocol hook.	2015-08-10 14:03:54 -07:00
gre_offload.c	ipv6: gre: support SIT encapsulation	2015-10-26 22:01:18 -07:00
icmp.c	Revert "ipv4/icmp: redirect messages can use the ingress daddr as source"	2015-10-14 06:01:07 -07:00
igmp.c	ipv4: igmp: Allow removing groups from a removed interface	2015-12-03 12:07:05 -05:00
inet_connection_sock.c	tcp: ensure proper barriers in lockless contexts	2015-11-15 18:36:38 -05:00
inet_diag.c	net: diag: support v4mapped sockets in inet_diag_find_one_icsk()	2016-01-20 18:51:31 -08:00
inet_fragment.c	inet: kill unused skb_free op	2016-01-05 22:25:57 -05:00
inet_hashtables.c	tcp/dccp: fix hashdance race for passive sessions	2015-10-23 05:42:21 -07:00
inet_lro.c	…
inet_timewait_sock.c	tcp/dccp: fix timewait races in timer handling	2015-09-21 16:32:29 -07:00
inetpeer.c	net: Add helper function to compare inetpeer addresses	2015-08-28 13:32:36 -07:00
ip_forward.c	net: Pass net into dst_output and remove dst_output_okfn	2015-10-08 04:26:54 -07:00
ip_fragment.c	inet: frag: Always orphan skbs inside ip_defrag()	2016-01-28 16:00:46 -08:00
ip_gre.c	vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices	2016-02-10 05:50:03 -05:00
ip_input.c	ipv4: early demux should be aware of fragments	2016-01-29 15:14:20 -05:00
ip_options.c	ipv4: coding style: comparison for inequality with NULL	2015-04-03 12:11:15 -04:00
ip_output.c	net: preserve IP control block during GSO segmentation	2016-01-15 14:35:24 -05:00
ip_sockglue.c	ipv4: fix a potential deadlock in mcast getsockopt() path	2015-11-04 21:29:59 -05:00
ip_tunnel.c	vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices	2016-02-10 05:50:03 -05:00
ip_tunnel_core.c	ipv4: fix endianness warnings in ip_tunnel_core.c	2016-01-08 21:30:43 -05:00
ip_vti.c	ip_tunnel: Move stats update to iptunnel_xmit()	2015-12-25 23:32:23 -05:00
ipcomp.c	ipv4: coding style: comparison for equality with NULL	2015-04-03 12:11:15 -04:00
ipconfig.c	ipv4: ipconfig: avoid unused ic_proto_used symbol	2016-01-29 19:39:09 -08:00
ipip.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-12-31 18:20:10 -05:00
ipmr.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-12-03 21:09:12 -05:00
netfilter.c	ipv4: Pass struct net into ip_route_me_harder	2015-09-29 20:21:32 +02:00
ping.c	ipv4: eliminate lock count warnings in ping.c	2016-01-08 21:30:43 -05:00
proc.c	net: track success and failure of TCP PMTU probing	2015-07-21 22:36:33 -07:00
protocol.c	…
raw.c	net: Propagate lookup failure in l3mdev_get_saddr to caller	2016-01-04 22:58:30 -05:00
route.c	net: Do not drop to make_route if oif is l3mdev	2015-10-08 05:18:47 -07:00
syncookies.c	net: Allow accepted sockets to be bound to l3mdev domain	2015-12-18 14:43:38 -05:00
sysctl_net_ipv4.c	net: drop tcp_memcontrol.c	2016-01-20 17:09:18 -08:00
tcp.c	net:Add sysctl_max_skb_frags	2016-02-09 04:28:06 -05:00
tcp_bic.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_cdg.c	tcp: do not slow start when cwnd equals ssthresh	2015-07-09 14:22:52 -07:00
tcp_cong.c	tcp: remove tcp_ecn_make_synack() socket argument	2015-09-25 13:00:38 -07:00
tcp_cubic.c	tcp_cubic: do not set epoch_start in the future	2015-09-17 22:35:07 -07:00
tcp_dctcp.c	tcp: allow dctcp alpha to drop to zero	2015-10-23 02:46:52 -07:00
tcp_diag.c	net: diag: Support destroying TCP sockets.	2015-12-15 23:26:52 -05:00
tcp_fastopen.c	tcp/dccp: fix hashdance race for passive sessions	2015-10-23 05:42:21 -07:00
tcp_highspeed.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_htcp.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_hybla.c	tcp: do not slow start when cwnd equals ssthresh	2015-07-09 14:22:52 -07:00
tcp_illinois.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_input.c	tcp: avoid cwnd undo after receiving ECN	2016-01-29 23:03:56 -08:00
tcp_ipv4.c	tcp: do not drop syn_recv on all icmp reports	2016-02-09 04:15:37 -05:00
tcp_lp.c	…
tcp_metrics.c	net: Add helper function to compare inetpeer addresses	2015-08-28 13:32:36 -07:00
tcp_minisocks.c	tcp: honour SO_BINDTODEVICE for TW_RST case too	2015-12-22 17:03:05 -05:00
tcp_offload.c	tcp: reserve tcp_skb_mss() to tcp stack	2015-06-11 16:33:10 -07:00
tcp_output.c	net: tcp_memcontrol: simplify linkage between socket and page counter	2016-01-14 16:00:49 -08:00
tcp_probe.c	…
tcp_recovery.c	tcp: use RACK to detect losses	2015-10-21 07:00:53 -07:00
tcp_scalable.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_timer.c	ipv4: Namespecify the tcp_keepalive_intvl sysctl knob	2016-01-10 17:32:09 -05:00
tcp_vegas.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_vegas.h	tcp: prepare CC get_info() access from getsockopt()	2015-04-29 17:10:38 -04:00
tcp_veno.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_westwood.c	tcp_westwood: fix tcp_westwood_info()	2015-05-05 19:50:09 -04:00
tcp_yeah.c	tcp_yeah: don't set ssthresh below 2	2016-01-11 17:25:16 -05:00
tunnel4.c	…
udp.c	udp: fix potential infinite loop in SO_REUSEPORT logic	2016-01-19 13:52:25 -05:00
udp_diag.c	soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF	2016-01-04 22:49:59 -05:00
udp_impl.h	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
udp_offload.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-01-11 23:55:43 -05:00
udp_tunnel.c	ip_tunnel: Move stats update to iptunnel_xmit()	2015-12-25 23:32:23 -05:00
udplite.c	…
xfrm4_input.c	netfilter: Pass net into okfn	2015-09-17 17:18:37 -07:00
xfrm4_mode_beet.c	…
xfrm4_mode_transport.c	…
xfrm4_mode_tunnel.c	ipv4: hash net ptr into fragmentation bucket selection	2015-03-25 14:07:04 -04:00
xfrm4_output.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-24 06:54:12 -07:00
xfrm4_policy.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec	2015-12-22 16:26:31 -05:00
xfrm4_protocol.c	…
xfrm4_state.c	…
xfrm4_tunnel.c	…