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linux/net/ipv6
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Eric Dumazet fff3269907 tcp: reflect SYN queue_mapping into SYNACK packets 
While testing how linux behaves on SYNFLOOD attack on multiqueue device
(ixgbe), I found that SYNACK messages were dropped at Qdisc level
because we send them all on a single queue.

Obvious choice is to reflect incoming SYN packet @queue_mapping to
SYNACK packet.

Under stress, my machine could only send 25.000 SYNACK per second (for
200.000 incoming SYN per second). NIC : ixgbe with 16 rx/tx queues.

After patch, not a single SYNACK is dropped.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Hans Schillstrom <hans.schillstrom@ericsson.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-01 14:22:11 -04:00
..
netfilter net: Convert net_ratelimit uses to net_<level>_ratelimited 2012-05-15 13:45:03 -04:00
addrconf_core.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
addrconf.c Merge branch 'delete-tokenring' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2012-05-16 01:02:40 -04:00
addrlabel.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
af_inet6.c ipv6: bool conversions phase1 2012-05-18 02:24:13 -04:00
ah6.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
anycast.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
datagram.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
esp6.c xfrm: take net hdr len into account for esp payload size calculation 2012-05-27 01:08:29 -04:00
exthdrs_core.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
exthdrs.c ipv6/exthdrs: strict Pad1 and PadN check 2012-05-20 16:58:39 -04:00
fib6_rules.c net/ipv6/fib6_rules.c: Checkpatch cleanup 2012-04-02 04:33:46 -04:00
icmp.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
inet6_connection_sock.c tcp: bind() use stronger condition for bind_conflict 2012-04-14 15:28:55 -04:00
inet6_hashtables.c
ip6_fib.c net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug 2012-05-16 01:01:03 -04:00
ip6_flowlabel.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
ip6_input.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
ip6_output.c ipv6: fix incorrect ipsec fragment 2012-05-27 01:11:22 -04:00
ip6_tunnel.c ipv6: bool conversions phase1 2012-05-18 02:24:13 -04:00
ip6mr.c net: ipv6: Standardize prefixes for message logging 2012-05-16 01:01:03 -04:00
ipcomp6.c net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug 2012-05-16 01:01:03 -04:00
ipv6_sockglue.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
Kconfig xfrm: make xfrm_algo.c a module 2012-05-15 13:13:34 -04:00
Makefile
mcast.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
mip6.c ipv6: correct the ipv6 option name - Pad0 to Pad1 2012-05-17 15:49:51 -04:00
ndisc.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
netfilter.c
proc.c
protocol.c
raw.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
reassembly.c ipv6: use skb coalescing in reassembly 2012-05-19 18:34:57 -04:00
route.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
sit.c net: ipv6: Standardize prefixes for message logging 2012-05-16 01:01:03 -04:00
syncookies.c
sysctl_net_ipv6.c net: Delete all remaining instances of ctl_path 2012-04-20 21:22:30 -04:00
tcp_ipv6.c tcp: reflect SYN queue_mapping into SYNACK packets 2012-06-01 14:22:11 -04:00
tunnel6.c net: ipv6: Standardize prefixes for message logging 2012-05-16 01:01:03 -04:00
udp_impl.h
udp.c net:ipv6:fixed space issues relating to operators. 2012-05-19 18:34:57 -04:00
udplite.c
xfrm6_input.c
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c
xfrm6_output.c
xfrm6_policy.c net: Convert all sysctl registrations to register_net_sysctl 2012-04-20 21:22:30 -04:00
xfrm6_state.c
xfrm6_tunnel.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00