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Nikolay Aleksandrov bf4e0a3db9 net: ipv4: add support for ECMP hash policy choice 
This patch adds support for ECMP hash policy choice via a new sysctl
called fib_multipath_hash_policy and also adds support for L4 hashes.
The current values for fib_multipath_hash_policy are:
 0 - layer 3 (default)
 1 - layer 4
If there's an skb hash already set and it matches the chosen policy then it
will be used instead of being calculated (currently only for L4).
In L3 mode we always calculate the hash due to the ICMP error special
case, the flow dissector's field consistentification should handle the
address order thus we can remove the address reversals.
If the skb is provided we always use it for the hash calculation,
otherwise we fallback to fl4, that is if skb is NULL fl4 has to be set.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-21 15:27:19 -07:00
..
netfilter netfilter: refcounter conversions 2017-03-17 12:49:43 +01:00
af_inet.c net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
ah4.c IPsec: do not ignore crypto err in ah4 input 2017-01-16 12:57:48 +01:00
arp.c NET: Fix /proc/net/arp for AX.25 2017-02-13 22:15:03 -05:00
cipso_ipv4.c netlabel: out of bound access in cipso_v4_validate() 2017-02-04 19:44:22 -05:00
datagram.c net: Set sk_txhash from a random number 2015-07-29 22:44:04 -07:00
devinet.c net: Eliminate duplicated codes by creating one new function in_dev_select_addr 2017-03-12 23:27:09 -07:00
esp4.c esp: Introduce a helper to setup the trailer 2017-01-17 10:23:08 +01:00
esp4_offload.c esp: Add a software GRO codepath 2017-02-15 11:04:11 +01:00
fib_frontend.c net: route: add missing nla_policy entry for RTA_MARK attribute 2017-03-01 10:25:56 -08:00
fib_lookup.h ipv4: consider TOS in fib_select_default 2015-07-24 22:46:11 -07:00
fib_notifier.c ipv4: fib: Remove redundant argument 2017-03-10 09:45:09 -08:00
fib_rules.c ipv4: fib_rules: Dump FIB rules when registering FIB notifier 2017-03-16 10:18:34 -07:00
fib_semantics.c net: ipv4: add support for ECMP hash policy choice 2017-03-21 15:27:19 -07:00
fib_trie.c ipv4: fib: Remove redundant argument 2017-03-10 09:45:09 -08:00
fou.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-30 12:42:58 -04:00
gre_demux.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-06-30 05:03:36 -04:00
gre_offload.c net: add recursion limit to GRO 2016-10-20 14:32:22 -04:00
icmp.c net: ipv4: add support for ECMP hash policy choice 2017-03-21 15:27:19 -07:00
igmp.c igmp, mld: Fix memory leak in igmpv3/mld_del_delrec() 2017-02-09 16:43:45 -05:00
inet_connection_sock.c net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
inet_diag.c tcp: remove early retransmit 2017-01-13 22:37:16 -05:00
inet_fragment.c net: disable fragment reassembly if high_thresh is zero 2016-06-05 22:56:42 -04:00
inet_hashtables.c inet: kill smallest_size and smallest_port 2017-01-18 13:04:29 -05:00
inet_timewait_sock.c ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob 2016-12-29 11:38:31 -05:00
inetpeer.c net: Add helper function to compare inetpeer addresses 2015-08-28 13:32:36 -07:00
ip_forward.c ipv4: allow local fragmentation in ip_finish_output_gso() 2016-11-03 16:10:26 -04:00
ip_fragment.c net: rename IP_INC_STATS_BH() 2016-04-27 22:48:23 -04:00
ip_gre.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ip_input.c net: VRF: Pass original iif to ip_route_input() 2016-09-16 04:24:07 -04:00
ip_options.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ip_output.c udp: avoid ufo handling on IP payload compression packets 2017-03-09 18:28:42 -08:00
ip_sockglue.c ip: fix IP_CHECKSUM handling 2017-02-21 12:23:53 -05:00
ip_tunnel.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
ip_tunnel_core.c lwtunnel: remove device arg to lwtunnel_build_state 2017-01-30 15:14:22 -05:00
ip_vti.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
ipcomp.c ipv4: coding style: comparison for equality with NULL 2015-04-03 12:11:15 -04:00
ipconfig.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ipip.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ipmr.c lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
Kconfig Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2017-02-16 21:25:49 -05:00
Makefile ipv4: fib: Move FIB notification code to a separate file 2017-03-10 09:45:09 -08:00
netfilter.c netfilter: use skb_to_full_sk in ip_route_me_harder 2017-02-28 12:49:36 +01:00
ping.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-02-11 02:31:11 -05:00
proc.c tcp: remove tcp_tw_recycle 2017-03-16 20:33:56 -07:00
protocol.c net: Export inet_offloads and inet6_offloads 2014-09-19 17:15:31 -04:00
raw.c net: use dst_confirm_neigh for UDP, RAW, ICMP, L2TP 2017-02-07 13:07:47 -05:00
raw_diag.c net: ip, raw_diag -- Use jump for exiting from nested loop 2016-11-03 15:25:26 -04:00
route.c net: ipv4: add support for ECMP hash policy choice 2017-03-21 15:27:19 -07:00
syncookies.c syncookies: use SipHash in place of SHA1 2017-01-09 13:58:57 -05:00
sysctl_net_ipv4.c net: ipv4: add support for ECMP hash policy choice 2017-03-21 15:27:19 -07:00
tcp.c tcp: fix potential double free issue for fastopen_req 2017-03-02 14:05:41 -08:00
tcp_bbr.c tcp_bbr: add a state transition diagram and accompanying comment 2016-10-29 17:12:43 -04:00
tcp_bic.c tcp: replace cnt & rtt with struct in pkts_acked() 2016-05-11 14:43:19 -04:00
tcp_cdg.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h> 2017-03-02 08:42:27 +01:00
tcp_cong.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-22 13:27:16 -05:00
tcp_cubic.c tcp: replace cnt & rtt with struct in pkts_acked() 2016-05-11 14:43:19 -04:00
tcp_dctcp.c Revert "dctcp: update cwnd on congestion event" 2016-12-06 11:34:24 -05:00
tcp_diag.c net: diag: Fix refcnt leak in error path destroying socket 2016-08-23 23:11:36 -07:00
tcp_fastopen.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-01-28 10:33:06 -05:00
tcp_highspeed.c tcp: add cwnd_undo functions to various tcp cc algorithms 2016-11-21 13:20:17 -05:00
tcp_htcp.c tcp: replace cnt & rtt with struct in pkts_acked() 2016-05-11 14:43:19 -04:00
tcp_hybla.c tcp: make undo_cwnd mandatory for congestion modules 2016-11-21 13:20:17 -05:00
tcp_illinois.c tcp: add cwnd_undo functions to various tcp cc algorithms 2016-11-21 13:20:17 -05:00
tcp_input.c tcp: remove tcp_tw_recycle 2017-03-16 20:33:56 -07:00
tcp_ipv4.c tcp: remove tcp_tw_recycle 2017-03-16 20:33:56 -07:00
tcp_lp.c tcp: make undo_cwnd mandatory for congestion modules 2016-11-21 13:20:17 -05:00
tcp_metrics.c tcp: remove per-destination timestamp cache 2017-03-16 20:33:56 -07:00
tcp_minisocks.c tcp: remove per-destination timestamp cache 2017-03-16 20:33:56 -07:00
tcp_nv.c tcp: add NV congestion control 2016-06-10 23:07:49 -07:00
tcp_offload.c gso: Support partial splitting at the frag_list pointer 2016-09-19 20:59:34 -04:00
tcp_output.c tcp: accommodate sequence number to a peer's shrunk receive window caused by precision loss in window scaling 2017-02-17 15:30:33 -05:00
tcp_probe.c tcp: Revert "tcp: tcp_probe: use spin_lock_bh()" 2017-02-21 13:26:03 -05:00
tcp_rate.c tcp: export data delivery rate 2016-09-21 00:23:00 -04:00
tcp_recovery.c tcp: enable RACK loss detection to trigger recovery 2017-01-13 22:37:16 -05:00
tcp_scalable.c tcp: add cwnd_undo functions to various tcp cc algorithms 2016-11-21 13:20:17 -05:00
tcp_timer.c tcp: fix various issues for sockets morphing to listen state 2017-03-07 13:58:33 -08:00
tcp_vegas.c tcp: make undo_cwnd mandatory for congestion modules 2016-11-21 13:20:17 -05:00
tcp_vegas.h tcp: replace cnt & rtt with struct in pkts_acked() 2016-05-11 14:43:19 -04:00
tcp_veno.c tcp: add cwnd_undo functions to various tcp cc algorithms 2016-11-21 13:20:17 -05:00
tcp_westwood.c tcp_westwood: fix tcp_westwood_info() style mistakes 2017-03-16 20:23:28 -07:00
tcp_yeah.c tcp: add cwnd_undo functions to various tcp cc algorithms 2016-11-21 13:20:17 -05:00
tunnel4.c tunnels: correct conditional build of MPLS and IPv6 2016-07-11 13:27:06 -07:00
udp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-02-07 16:29:30 -05:00
udp_diag.c net: inet: diag: expose the socket mark to privileged processes. 2016-09-08 16:13:09 -07:00
udp_impl.h udplite: call proper backlog handlers 2016-11-24 15:32:14 -05:00
udp_offload.c net: add recursion limit to GRO 2016-10-20 14:32:22 -04:00
udp_tunnel.c net: Remove deprecated tunnel specific UDP offload functions 2016-06-17 20:23:32 -07:00
udplite.c udplite: call proper backlog handlers 2016-11-24 15:32:14 -05:00
xfrm4_input.c esp: Add a software GRO codepath 2017-02-15 11:04:11 +01:00
xfrm4_mode_beet.c ipv4: ERROR: code indent should use tabs where possible 2013-12-26 13:43:21 -05:00
xfrm4_mode_transport.c esp: Add a software GRO codepath 2017-02-15 11:04:11 +01:00
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 xfrm: policy: make policy backend const 2017-02-09 10:22:19 +01:00
xfrm4_protocol.c xfrm: input: constify xfrm_input_afinfo 2017-02-09 10:22:17 +01:00
xfrm4_state.c xfrm: remove unused function 2017-01-10 10:57:12 +01:00
xfrm4_tunnel.c