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Eric Dumazet ddbe503203 ipv6: add ipv6_addr_hash() helper 
Introduce ipv6_addr_hash() helper doing a XOR on all bits
of an IPv6 address, with an optimized x86_64 version.

Use it in flow dissector, as suggested by Andrew McGregor,
to reduce hash collision probabilities in fq_codel (and other
users of flow dissector)

Use it in ip6_tunnel.c and use more bit shuffling, as suggested
by David Laight, as existing hash was ignoring most of them.

Use it in sunrpc and use more bit shuffling, using hash_32().

Use it in net/ipv6/addrconf.c, using hash_32() as well.

As a cleanup, use it in net/ipv4/tcp_metrics.c

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrew McGregor <andrewmcgr@gmail.com>
Cc: Dave Taht <dave.taht@gmail.com>
Cc: Tom Herbert <therbert@google.com>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2012-07-18 11:28:46 -07:00
..
netfilter netfilter: nf_conntrack: generalize nf_ct_l4proto_net 2012-07-04 19:37:22 +02:00
Kconfig xfrm: make xfrm_algo.c a module 2012-05-15 13:13:34 -04:00
Makefile [IPV6] MROUTE: Support multicast forwarding. 2008-04-05 22:33:38 +09:00
addrconf.c ipv6: add ipv6_addr_hash() helper 2012-07-18 11:28:46 -07:00
addrconf_core.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -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: Add redirect support to all protocol icmp error handlers. 2012-07-12 00:25:15 -07:00
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 ipv6: Add redirect support to all protocol icmp error handlers. 2012-07-12 00:25:15 -07:00
exthdrs.c net: Remove casts to same type 2012-06-04 11:45:11 -04:00
exthdrs_core.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
fib6_rules.c net/ipv6/fib6_rules.c: Checkpatch cleanup 2012-04-02 04:33:46 -04:00
icmp.c ipv6: Use icmpv6_notify() to propagate redirect, instead of rt6_redirect(). 2012-07-12 00:33:37 -07:00
inet6_connection_sock.c ipv6: fix inet6_csk_xmit() 2012-07-18 08:59:58 -07:00
inet6_hashtables.c net: Compute protocol sequence numbers and fragment IDs using MD5. 2011-08-06 18:33:19 -07:00
ip6_fib.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-25 15:50:32 -07:00
ip6_flowlabel.c ipv6: bool/const conversions phase2 2012-05-19 01:08:16 -04:00
ip6_input.c inet: Sanitize inet{,6} protocol demux. 2012-06-19 18:56:21 -07:00
ip6_output.c inet: Minimize use of cached route inetpeer. 2012-07-10 22:40:11 -07:00
ip6_tunnel.c ipv6: add ipv6_addr_hash() helper 2012-07-18 11:28:46 -07:00
ip6mr.c ip6mr: Do not use RTA_PUT() macros 2012-06-27 15:36:44 -07:00
ipcomp6.c ipv6: Add redirect support to all protocol icmp error handlers. 2012-07-12 00:25:15 -07:00
ipv6_sockglue.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
mcast.c ipv6: fix unappropriate errno returned for non-multicast address 2012-07-17 01:35:03 -07:00
mip6.c ipv6: correct the ipv6 option name - Pad0 to Pad1 2012-05-17 15:49:51 -04:00
ndisc.c ipv6: Use icmpv6_notify() to propagate redirect, instead of rt6_redirect(). 2012-07-12 00:33:37 -07:00
netfilter.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
proc.c ipv6: fix per device IP snmp counters 2012-01-17 23:56:18 -05:00
protocol.c inet: Sanitize inet{,6} protocol demux. 2012-06-19 18:56:21 -07:00
raw.c ipv6: Add redirect support to all protocol icmp error handlers. 2012-07-12 00:25:15 -07:00
reassembly.c ipv6: use skb coalescing in reassembly 2012-05-19 18:34:57 -04:00
route.c Merge branch 'nexthop_exceptions' 2012-07-17 10:48:26 -07:00
sit.c net: Pass optional SKB and SK arguments to dst_ops->{update_pmtu,redirect}() 2012-07-17 03:29:28 -07:00
syncookies.c ipv6: remove redundant declarations 2012-07-05 23:40:28 -07:00
sysctl_net_ipv6.c net: Delete all remaining instances of ctl_path 2012-04-20 21:22:30 -04:00
tcp_ipv6.c net: Pass optional SKB and SK arguments to dst_ops->{update_pmtu,redirect}() 2012-07-17 03:29:28 -07:00
tunnel6.c net: ipv6: Standardize prefixes for message logging 2012-05-16 01:01:03 -04:00
udp.c ipv6: Add redirect support to all protocol icmp error handlers. 2012-07-12 00:25:15 -07:00
udp_impl.h net: Make setsockopt() optlen be unsigned. 2009-09-30 16:12:20 -07:00
udplite.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
xfrm6_input.c netfilter: ipv6: use NFPROTO values for NF_HOOK invocation 2010-03-25 16:00:49 +01:00
xfrm6_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm6_mode_ro.c
…
xfrm6_mode_transport.c
…
xfrm6_mode_tunnel.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm6_output.c xfrm6: remove unneeded NULL check in __xfrm6_output() 2012-02-01 02:52:48 -05:00
xfrm6_policy.c net: Pass optional SKB and SK arguments to dst_ops->{update_pmtu,redirect}() 2012-07-17 03:29:28 -07:00
xfrm6_state.c net: remove ipv6_addr_copy() 2011-11-22 16:43:32 -05:00
xfrm6_tunnel.c net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00