AcoSail/kernel_optimize_test
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30f78d8ebf
kernel_optimize_test/net/ipv6
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Eric Dumazet 30f78d8ebf ipv6: Limit mtu to 65575 bytes 
Francois reported that setting big mtu on loopback device could prevent
tcp sessions making progress.

We do not support (yet ?) IPv6 Jumbograms and cook corrupted packets.

We must limit the IPv6 MTU to (65535 + 40) bytes in theory.

Tested:

ifconfig lo mtu 70000
netperf -H ::1

Before patch : Throughput :   0.05 Mbits

After patch : Throughput : 35484 Mbits

Reported-by: Francois WELLENREITER <f.wellenreiter@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14 12:39:59 -04:00
..
netfilter netfilter: Can't fail and free after table replacement 2014-04-05 17:46:22 +02:00
addrconf_core.c
addrconf.c ipv6: move DAD and addrconf_verify processing to workqueue 2014-03-28 16:54:50 -04:00
addrlabel.c ipv6:fix checkpatch errors with assignment in if condition 2014-02-17 16:57:29 -05:00
af_inet6.c ipv6: add flowlabel_consistency sysctl 2014-01-19 17:12:31 -08:00
ah6.c ah6: Use the IPsec protocol multiplexer API 2014-03-14 07:28:07 +01:00
anycast.c ipv6: enable anycast addresses as source addresses for datagrams 2014-01-22 21:57:05 -08:00
datagram.c ipv6: enable anycast addresses as source addresses for datagrams 2014-01-22 21:57:05 -08:00
esp6.c esp6: Use the IPsec protocol multiplexer API 2014-03-14 07:28:07 +01:00
exthdrs_core.c ipv6: ipv6_find_hdr restore prev functionality 2014-02-27 18:27:26 -05:00
exthdrs_offload.c ipv6: Fix exthdrs offload registration. 2014-03-06 16:35:55 -05:00
exthdrs.c
fib6_rules.c ipv6: move IPV6_TCLASS_SHIFT into ipv6.h and define a helper 2014-01-15 15:53:18 -08:00
icmp.c ipv6: some ipv6 statistic counters failed to disable bh 2014-03-31 16:38:12 -04:00
inet6_connection_sock.c
inet6_hashtables.c
ip6_checksum.c ipv6: log src and dst along with "udp checksum is 0" 2014-02-26 15:46:25 -05:00
ip6_fib.c ipv6: fix checkpatch errors of "foo*" and "foo * bar" 2014-03-29 18:15:52 -04:00
ip6_flowlabel.c ipv6: remove some unused include in flowlabel 2014-02-18 18:11:05 -05:00
ip6_gre.c net: introduce netdev_alloc_pcpu_stats() for drivers 2014-02-14 15:49:55 -05:00
ip6_icmp.c
ip6_input.c net: Fix memory leak if TPROXY used with TCP early demux 2014-01-27 16:22:11 -08:00
ip6_offload.c ipv4: ipv6: better estimate tunnel header cut for correct ufo handling 2014-02-25 18:27:06 -05:00
ip6_offload.h
ip6_output.c ipv6: some ipv6 statistic counters failed to disable bh 2014-03-31 16:38:12 -04:00
ip6_tunnel.c net: Replace u64_stats_fetch_begin_bh to u64_stats_fetch_begin_irq 2014-03-14 22:41:36 -04:00
ip6_vti.c vti6: Enable namespace changing 2014-03-14 07:28:09 +01:00
ip6mr.c ip6mr: fix mfc notification flags 2014-03-20 16:24:28 -04:00
ipcomp6.c ipcomp6: Use the IPsec protocol multiplexer API 2014-03-14 07:28:07 +01:00
ipv6_sockglue.c ipv6: yet another new IPV6_MTU_DISCOVER option IPV6_PMTUDISC_OMIT 2014-02-26 15:51:01 -05:00
Kconfig ip6_vti: Fix build when NET_IP_TUNNEL is not set. 2014-02-20 14:29:49 +01:00
Makefile xfrm6: Add IPsec protocol multiplexer 2014-03-14 07:28:07 +01:00
mcast.c ipv6: some ipv6 statistic counters failed to disable bh 2014-03-31 16:38:12 -04:00
mip6.c
ndisc.c
netfilter.c
output_core.c ipv6: strengthen fallback fragmentation id generation 2014-03-31 16:33:38 -04:00
ping.c ipv6: some ipv6 statistic counters failed to disable bh 2014-03-31 16:38:12 -04:00
proc.c
protocol.c
raw.c ipv6: protect protocols not handling ipv4 from v4 connection/bind attempts 2014-01-21 16:59:19 -08:00
reassembly.c
route.c ipv6: Limit mtu to 65575 bytes 2014-04-14 12:39:59 -04:00
sit.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-05 20:32:02 -05:00
syncookies.c
sysctl_net_ipv6.c ipv6: add flowlabel_consistency sysctl 2014-01-19 17:12:31 -08:00
tcp_ipv6.c net: ipv6: Fix oif in TCP SYN+ACK route lookup. 2014-04-11 16:43:47 -04:00
tcpv6_offload.c
tunnel6.c
udp_impl.h
udp_offload.c ipv6: reuse ip6_frag_id from ip6_ufo_append_data 2014-02-22 00:28:21 -05:00
udp.c ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams 2014-01-19 19:53:18 -08:00
udplite.c
xfrm6_input.c
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c xfrm6: Remove xfrm_tunnel_notifier 2014-03-14 07:28:08 +01:00
xfrm6_output.c
xfrm6_policy.c xfrm6: Add IPsec protocol multiplexer 2014-03-14 07:28:07 +01:00
xfrm6_protocol.c xfrm6: Add IPsec protocol multiplexer 2014-03-14 07:28:07 +01:00
xfrm6_state.c
xfrm6_tunnel.c