kernel-hacking-2024-linux-s.../include/net
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
..
9p
bluetooth Bluetooth: L2CAP: Introduce proper defines for PSM ranges 2016-01-29 11:47:24 +01:00
caif
irda
iucv
netfilter netfilter: nf_conntrack: use safer way to lock all buckets 2016-01-20 14:15:31 +01:00
netns ipv4: Namespecify the tcp_keepalive_intvl sysctl knob 2016-01-10 17:32:09 -05:00
nfc nfc: netlink: HCI event connectivity implementation 2015-12-29 19:06:20 +01:00
phonet
sctp sctp: remove the dead field of sctp_transport 2016-01-28 15:59:32 -08:00
tc_act
6lowpan.h 6lowpan: add debugfs support 2015-12-10 01:25:25 +01:00
act_api.h
addrconf.h soreuseport: fast reuseport UDP socket selection 2016-01-04 22:49:58 -05:00
af_ieee802154.h
af_rxrpc.h
af_unix.h unix: correctly track in-flight fds in sending process user_struct 2016-02-08 10:30:42 -05:00
af_vsock.h Revert "Merge branch 'vsock-virtio'" 2015-12-08 21:55:49 -05:00
ah.h
arp.h
atmclip.h
ax25.h
ax88796.h
bond_3ad.h bonding: simplify / unify event handling code for 3ad mode. 2015-11-02 22:52:24 -05:00
bond_alb.h
bond_options.h
bonding.h bonding: implement lower state change propagation 2015-12-03 11:49:27 -05:00
busy_poll.h net: un-inline sk_busy_loop() 2015-11-18 16:17:38 -05:00
cfg80211-wext.h
cfg80211.h cfg80211: Add support for aborting an ongoing scan 2015-12-04 14:43:32 +01:00
cfg802154.h
checksum.h rco: Clean up casting errors 2015-12-13 23:57:45 -05:00
cipso_ipv4.h
cls_cgroup.h net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct 2015-12-08 22:02:33 -05:00
codel.h
compat.h
datalink.h
dcbevent.h
dcbnl.h
dn.h
dn_dev.h
dn_fib.h
dn_neigh.h
dn_nsp.h
dn_route.h
dsa.h net: dsa: remove DSA link polling 2015-12-07 16:35:49 -05:00
dsfield.h
dst.h net: fix IP early demux races 2015-12-14 23:52:00 -05:00
dst_metadata.h gro: Make GRO aware of lightweight tunnels. 2016-01-20 18:48:38 -08:00
dst_ops.h
esp.h
ethoc.h
fib_rules.h
firewire.h
flow.h
flow_dissector.h
flowcache.h
fou.h
garp.h
gen_stats.h
genetlink.h netlink: add a start callback for starting a netlink dump 2015-12-15 23:25:20 -05:00
geneve.h geneve: Add geneve_get_rx_port support 2015-12-16 10:58:56 -05:00
gre.h
gro_cells.h
gue.h
icmp.h
ieee80211_radiotap.h
ieee802154_netdev.h mac802154: constify ieee802154_llsec_ops structure 2016-01-04 20:40:41 +01:00
if_inet6.h
ila.h ila: Add generic ILA translation facility 2015-12-15 23:25:20 -05:00
inet6_connection_sock.h
inet6_hashtables.h
inet_common.h net: avoid NULL deref in inet_ctl_sock_destroy() 2015-11-02 22:46:09 -05:00
inet_connection_sock.h
inet_ecn.h ipv6: update skb->csum when CE mark is propagated 2016-01-15 15:07:23 -05:00
inet_frag.h inet: kill unused skb_free op 2016-01-05 22:25:57 -05:00
inet_hashtables.h
inet_sock.h net: Allow accepted sockets to be bound to l3mdev domain 2015-12-18 14:43:38 -05:00
inet_timewait_sock.h
inetpeer.h inet: tcp: fix inetpeer_set_addr_v4() 2015-12-16 00:14:12 -05:00
ip.h
ip6_checksum.h
ip6_fib.h ipv6: Check rt->dst.from for the DST_NOCACHE route 2015-11-15 17:12:37 -05:00
ip6_route.h ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail() 2016-01-29 20:31:26 -08:00
ip6_tunnel.h net: make ip6tunnel_xmit definition conditional 2016-01-04 21:50:51 -05:00
ip_fib.h ipv4: eliminate endianness warnings in ip_fib.h 2016-01-08 21:30:43 -05:00
ip_tunnels.h vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices 2016-02-10 05:50:03 -05:00
ip_vs.h
ipcomp.h
ipconfig.h
ipv6.h ipv6: add ipv6_addr_prefix_copy 2015-12-10 12:55:28 +01:00
ipx.h
iw_handler.h
l3mdev.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-01-06 22:54:18 -05:00
lapb.h
lib80211.h
llc.h
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
lwtunnel.h
mac80211.h mac80211: add new IEEE80211_VIF_GET_NOA_UPDATE flag 2015-12-04 14:43:32 +01:00
mac802154.h
mip6.h
mld.h
mpls.h
mpls_iptunnel.h
mrp.h
ndisc.h Revert "ipv6: ndisc: inherit metadata dst when creating ndisc requests" 2015-12-01 15:07:59 -05:00
neighbour.h
net_namespace.h netfilter: cttimeout: add netns support 2015-12-14 12:48:58 +01:00
net_ratelimit.h
netevent.h
netlabel.h
netlink.h
netprio_cgroup.h net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct 2015-12-08 22:02:33 -05:00
netrom.h
nexthop.h
nl802154.h
p8022.h
ping.h
pkt_cls.h
pkt_sched.h
protocol.h udp: restrict offloads to one namespace 2016-01-10 17:28:24 -05:00
psnap.h
raw.h
rawv6.h
red.h
regulatory.h
request_sock.h net: add inet_sk_transparent() helper 2015-12-22 17:03:05 -05:00
rose.h
route.h net: Propagate lookup failure in l3mdev_get_saddr to caller 2016-01-04 22:58:30 -05:00
rtnetlink.h
sch_generic.h net, sched: add skb_at_tc_ingress helper 2016-01-10 17:54:28 -05:00
scm.h unix: correctly track in-flight fds in sending process user_struct 2016-02-08 10:30:42 -05:00
secure_seq.h
slhc_vj.h
snmp.h
sock.h net: sock: remove dead cgroup methods from struct proto 2016-01-21 14:16:51 -08:00
sock_reuseport.h soreuseport: fix NULL ptr dereference SO_REUSEPORT after bind 2016-01-19 14:44:23 -05:00
Space.h
stp.h
switchdev.h switchdev: Adding MDB entry offload 2016-01-10 16:50:20 -05:00
tcp.h tcp: do not drop syn_recv on all icmp reports 2016-02-09 04:15:37 -05:00
tcp_states.h
timewait_sock.h
transp_v6.h
tso.h net: tso: add support for IPv6 2015-10-26 22:24:22 -07:00
udp.h soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF 2016-01-04 22:49:59 -05:00
udp_tunnel.h ip_tunnel: Move stats update to iptunnel_xmit() 2015-12-25 23:32:23 -05:00
udplite.h
vsock_addr.h
vxlan.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-17 22:08:28 -05:00
wext.h
wimax.h
x25.h
x25device.h
xfrm.h xfrm: add rcu protection to sk->sk_policy[] 2015-12-11 19:22:06 -05:00