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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
..
9p
9p: constify ->d_name handling
2017-01-12 04:01:17 -05:00
bluetooth
sched/headers: Prepare to use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h>
2017-03-02 08:42:38 +01:00
caif
caif: fix a signedness bug in cfpkt_iterate()
2015-02-20 17:35:14 -05:00
irda
scripts/spelling.txt: add "overide" pattern and fix typo instances
2017-03-09 17:01:09 -08:00
iucv
s390/iucv: do not use arrays as argument
2015-09-21 16:03:04 -07:00
netfilter
netfilter: refcounter conversions
2017-03-17 12:49:43 +01:00
netns
net: ipv4: add support for ECMP hash policy choice
2017-03-21 15:27:19 -07:00
nfc
NFC: digital: Add support for NFC DEP Response Waiting Time
2016-07-11 02:01:14 +02:00
phonet
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
sctp
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-03-15 11:59:10 -07:00
tc_act
mlxsw: spectrum: Add support for vlan modify TC action
2017-03-09 18:35:35 -08:00
6lowpan.h
6lowpan: add 802.15.4 short addr slaac
2016-06-15 20:41:22 -07:00
act_api.h
net sched actions: Add support for user cookies
2017-01-25 12:37:04 -05:00
addrconf.h
inet: collapse ipv4/v6 rcv_saddr_equal functions into one
2017-01-18 13:04:28 -05:00
af_ieee802154.h
ieee802154: af_ieee802154: fix typo in comment.
2015-09-17 13:20:05 +02:00
af_rxrpc.h
rxrpc: Rewrite the data and ack handling code
2016-09-08 11:10:12 +01:00
af_unix.h
af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock'
2016-09-04 13:29:29 -07:00
af_vsock.h
VSOCK: Introduce virtio_vsock_common.ko
2016-08-02 02:57:29 +03:00
ah.h
ipsec: Remove obsolete MAX_AH_AUTH_LEN
2014-09-18 10:54:36 +02:00
arp.h
net: add confirm_neigh method to dst_ops
2017-02-07 13:07:46 -05:00
atmclip.h
…
ax25.h
ax25: Stop using sock->sk_protinfo.
2015-06-28 16:55:44 -07:00
ax88796.h
…
bond_3ad.h
bonding: 3ad: apply ad_actor settings changes immediately
2016-02-09 04:45:49 -05:00
bond_alb.h
net: Move bonding headers under include/net
2014-11-10 13:27:49 -05:00
bond_options.h
bonding: convert num_grat_arp to the new bonding option API
2015-07-27 01:05:24 -07:00
bonding.h
netns: make struct pernet_operations::id unsigned int
2016-11-18 10:59:15 -05:00
busy_poll.h
sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
2017-03-02 08:42:32 +01:00
calipso.h
calipso: Add a label cache.
2016-06-27 15:06:17 -04:00
cfg80211-wext.h
…
cfg80211.h
scripts/spelling.txt: add "disassocation" pattern and fix typo instances
2017-02-27 18:43:47 -08:00
cfg802154.h
ieee802154: add netns support
2016-07-08 12:20:57 +02:00
checksum.h
csum: eliminate sparse warning in remcsum_unadjust()
2017-01-20 12:12:13 -05:00
cipso_ipv4.h
netlabel: out of bound access in cipso_v4_validate()
2017-02-04 19:44:22 -05:00
cls_cgroup.h
cls_cgroup: get sk_classid only from full sockets
2016-04-19 20:09:25 -04:00
codel_impl.h
codel: split into multiple files
2016-04-25 16:44:27 -04:00
codel_qdisc.h
net_sched: fq_codel: cache skb->truesize into skb->cb
2016-06-25 12:19:35 -04:00
codel.h
codel: split into multiple files
2016-04-25 16:44:27 -04:00
compat.h
packet: compat support for sock_fprog
2016-06-09 23:41:03 -07:00
datalink.h
…
dcbevent.h
…
dcbnl.h
net/dcb: Add IEEE QCN attribute
2015-03-06 21:50:02 -05:00
devlink.h
devlink: Add E-Switch inline mode control
2016-11-24 16:01:14 -05:00
dn_dev.h
…
dn_fib.h
…
dn_neigh.h
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
dn_nsp.h
…
dn_route.h
…
dn.h
…
dsa.h
net: dsa: check out-of-range ageing time value
2017-03-15 15:34:13 -07:00
dsfield.h
…
dst_cache.h
net: add dst_cache support
2016-02-16 20:21:48 -05:00
dst_metadata.h
net/dst: Add dst port to dst_metadata utility functions
2016-11-09 13:41:54 -05:00
dst_ops.h
net: add confirm_neigh method to dst_ops
2017-02-07 13:07:46 -05:00
dst.h
net: rename dst_neigh_output back to neigh_output
2017-02-11 21:25:18 -05:00
esp.h
…
ethoc.h
net/ethoc: support big-endian register layout
2015-09-23 15:33:15 -07:00
fib_rules.h
ipv4: fib_rules: Check if rule is a default rule
2017-03-16 10:18:33 -07:00
firewire.h
…
flow_dissector.h
flow disector: ARP support
2017-01-11 11:02:47 -05:00
flow.h
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-12 19:25:04 -08:00
flowcache.h
net/flowcache: Convert to hotplug state machine
2016-11-09 23:45:28 +01:00
fou.h
fou: Add encap ops for IPv6 tunnels
2016-05-20 18:03:16 -04:00
fq_impl.h
fq.h: Port memory limit mechanism from fq_codel
2016-09-30 13:29:21 +02:00
fq.h
fq.h: Port memory limit mechanism from fq_codel
2016-09-30 13:29:21 +02:00
garp.h
…
gen_stats.h
net_sched: gen_estimator: complete rewrite of rate estimators
2016-12-05 15:21:59 -05:00
genetlink.h
genetlink: Make family a signed integer.
2016-11-13 12:14:59 -05:00
geneve.h
net: Remove deprecated tunnel specific UDP offload functions
2016-06-17 20:23:32 -07:00
gre.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-08-18 01:17:32 -04:00
gro_cells.h
gro_cells: move to net/core/gro_cells.c
2017-02-08 14:38:18 -05:00
gtp.h
gtp: #define #define _GTP_H_ and not #define _GTP_H
2016-07-25 17:55:43 -07:00
gue.h
gue: Protocol constants for remote checksum offload
2014-11-05 16:30:03 -05:00
hwbm.h
net: add a hardware buffer management helper API
2016-03-14 12:19:46 -04:00
icmp.h
net: snmp: kill STATS_BH macros
2016-04-27 22:48:25 -04:00
ieee80211_radiotap.h
wireless: radiotap: rewrite the radiotap header file
2017-01-25 16:00:33 +01:00
ieee802154_netdev.h
mac802154: constify ieee802154_llsec_ops structure
2016-01-04 20:40:41 +01:00
if_inet6.h
net/ipv6: allow sysctl to change link-local address generation mode
2017-01-27 10:25:34 -05:00
ife.h
net: Introduce ife encapsulation module
2017-02-03 15:16:45 -05:00
ila.h
ila: Add generic ILA translation facility
2015-12-15 23:25:20 -05:00
inet6_connection_sock.h
inet: drop ->bind_conflict
2017-01-18 13:04:28 -05:00
inet6_hashtables.h
tcp/dccp: do not touch listener sk_refcnt under synflood
2016-04-04 22:11:20 -04:00
inet_common.h
net: Work around lockdep limitation in sockets that use sockets
2017-03-09 18:23:27 -08:00
inet_connection_sock.h
net: Work around lockdep limitation in sockets that use sockets
2017-03-09 18:23:27 -08:00
inet_ecn.h
ipv6: suppress sparse warnings in IP6_ECN_set_ce()
2016-08-13 15:08:00 -07:00
inet_frag.h
net: remove bh disabling around percpu_counter accesses
2017-01-20 11:27:22 -05:00
inet_hashtables.h
inet: reset tb->fastreuseport when adding a reuseport sk
2017-01-18 13:04:29 -05:00
inet_sock.h
net/tcp-fastopen: Add new API support
2017-01-25 14:04:38 -05:00
inet_timewait_sock.h
ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob
2016-12-29 11:38:31 -05:00
inetpeer.h
inet: tcp: fix inetpeer_set_addr_v4()
2015-12-16 00:14:12 -05:00
ip6_checksum.h
ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short
2016-03-13 23:55:13 -04:00
ip6_fib.h
net: ipv6: Allow shorthand delete of all nexthops in multipath route
2017-02-04 19:58:14 -05:00
ip6_route.h
net: inet: Support UID-based routing in IP protocols.
2016-11-04 14:45:23 -04:00
ip6_tunnel.h
ip6_tunnel: Clear IP6CB in ip6tunnel_xmit()
2016-11-02 15:18:36 -04:00
ip_fib.h
net: ipv4: add support for ECMP hash policy choice
2017-03-21 15:27:19 -07:00
ip_tunnels.h
ip_tunnels: new IP_TUNNEL_INFO_BRIDGE flag for ip_tunnel_info mode
2017-02-03 15:21:21 -05:00
ip_vs.h
netfilter: refcounter conversions
2017-03-17 12:49:43 +01:00
ip.h
Introduce a sysctl that modifies the value of PROT_SOCK.
2017-01-24 12:10:51 -05:00
ipcomp.h
…
ipconfig.h
…
ipv6.h
ipv6: fix flow labels when the traffic class is non-0
2017-01-31 13:16:59 -05:00
ipx.h
switch ipxrtr_route_packet() from iovec to msghdr
2014-11-24 04:28:49 -05:00
iw_handler.h
wext: uninline stream addition functions
2017-01-13 09:38:42 +01:00
kcm.h
kcm: Use stream parser
2016-08-17 19:36:23 -04:00
l3mdev.h
net: ipv4: Do not drop to make_route if oif is l3mdev
2016-10-13 12:05:26 -04:00
lapb.h
…
lib80211.h
lib80211: remove unused print_ssid()
2014-10-14 02:18:27 +02:00
llc_c_ac.h
…
llc_c_ev.h
…
llc_c_st.h
llc: Make llc_conn_ev_qfyr_t function pointer arrays const
2014-12-10 15:21:24 -05:00
llc_conn.h
net: Pass kern from net_proto_family.create to sk_alloc
2015-05-11 10:50:17 -04:00
llc_if.h
…
llc_pdu.h
…
llc_s_ac.h
…
llc_s_ev.h
…
llc_s_st.h
llc: Make llc_sap_action_t function pointer arrays const
2014-12-10 15:21:24 -05:00
llc_sap.h
…
llc.h
…
lwtunnel.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-02-11 02:31:11 -05:00
mac80211.h
scripts/spelling.txt: add "an user" pattern and fix typo instances
2017-02-27 18:43:46 -08:00
mac802154.h
ieee802154: cleanup WARN_ON for fc fetch
2016-07-08 13:23:12 +02:00
mip6.h
…
mld.h
ipv6: mld: answer mldv2 queries with mldv1 reports in mldv1 fallback
2014-09-22 16:23:15 -04:00
mpls_iptunnel.h
mpls: allow TTL propagation from IP packets to be configured
2017-03-13 15:29:22 -07:00
mpls.h
openvswitch: use mpls_hdr
2016-10-03 02:00:22 -04:00
mrp.h
…
ncsi.h
net/ncsi: Introduce ncsi_stop_dev()
2016-10-04 02:11:51 -04:00
ndisc.h
net: add confirm_neigh method to dst_ops
2017-02-07 13:07:46 -05:00
neighbour.h
net: rename dst_neigh_output back to neigh_output
2017-02-11 21:25:18 -05:00
net_namespace.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-11-22 13:27:16 -05:00
net_ratelimit.h
…
netevent.h
neigh: Send a notification when DELAY_PROBE_TIME changes
2016-07-05 09:06:29 -07:00
netlabel.h
netlabel: Implement CALIPSO config functions for SMACK.
2016-06-27 15:06:18 -04:00
netlink.h
net: ipv6: Change notifications for multipath add to RTA_MULTIPATH
2017-02-04 19:58:14 -05:00
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
ieee802154: add netns support
2016-07-08 12:20:57 +02:00
p8022.h
…
ping.h
net: ping: make ping_v6_sendmsg static
2016-03-23 22:09:58 -04:00
pkt_cls.h
net/sched: Reflect HW offload status
2017-02-17 12:08:05 -05:00
pkt_sched.h
net: sched: make default fifo qdiscs appear in the dump
2017-03-12 22:53:02 -07:00
pptp.h
pptp: Refactor the struct and macros of PPTP codes
2016-08-15 10:55:53 -07:00
protocol.h
udp: Remove udp_offloads
2016-04-07 16:53:30 -04:00
psample.h
net: Introduce psample, a new genetlink channel for packet sampling
2017-01-24 13:44:28 -05:00
psnap.h
…
raw.h
net: ip, diag -- Add diag interface for raw sockets
2016-10-23 19:35:24 -04:00
rawv6.h
net: ip, diag -- Add diag interface for raw sockets
2016-10-23 19:35:24 -04:00
red.h
ktime: Get rid of the union
2016-12-25 17:21:22 +01:00
regulatory.h
cfg80211: allow wiphy specific regdomain management
2014-12-17 11:49:55 +01:00
request_sock.h
ipv4: Namespaceify tcp_max_syn_backlog knob
2016-12-29 11:38:31 -05:00
rose.h
…
route.h
net: ipv4: add support for ECMP hash policy choice
2017-03-21 15:27:19 -07:00
rtnetlink.h
net: AF-specific RTM_GETSTATS attributes
2017-01-17 14:38:43 -05:00
sch_generic.h
net: sched: make default fifo qdiscs appear in the dump
2017-03-12 22:53:02 -07:00
scm.h
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
secure_seq.h
tcp: rename *_sequence_number() to *_seq_and_tsoff()
2017-03-09 18:25:34 -08:00
seg6_hmac.h
ipv6: sr: add core files for SR HMAC support
2016-11-09 20:40:06 -05:00
seg6.h
ipv6: sr: add core files for SR HMAC support
2016-11-09 20:40:06 -05:00
slhc_vj.h
…
smc.h
smc: netlink interface for SMC sockets
2017-01-09 16:07:41 -05:00
snmp.h
net: snmp: fix 64bit stats on 32bit arches
2016-04-28 11:49:45 -04:00
sock_reuseport.h
soreuseport: fix NULL ptr dereference SO_REUSEPORT after bind
2016-01-19 14:44:23 -05:00
sock.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-03-15 11:59:10 -07:00
Space.h
…
stp.h
…
strparser.h
kcm: Remove TCP specific references from kcm and strparser
2016-08-28 23:32:41 -04:00
switchdev.h
switchdev: bridge: Offload mc router ports
2017-02-10 11:46:39 -05:00
tcp_states.h
inet: add TCP_NEW_SYN_RECV state
2015-03-12 22:58:12 -04:00
tcp.h
tcp: remove tcp_tw_recycle
2017-03-16 20:33:56 -07:00
timewait_sock.h
inet: remove BUG_ON() in twsk_destructor()
2015-07-09 15:12:20 -07:00
transp_v6.h
ipv6: add new struct ipcm6_cookie
2016-05-03 16:08:14 -04:00
tso.h
net: tso: add support for IPv6
2015-10-26 22:24:22 -07:00
udp_tunnel.h
vxlan: Add new UDP encapsulation offload type for VXLAN-GPE
2016-06-17 20:23:32 -07:00
udp.h
inet: collapse ipv4/v6 rcv_saddr_equal functions into one
2017-01-18 13:04:28 -05:00
udplite.h
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-12-16 10:24:44 -08:00
vsock_addr.h
…
vxlan.h
vxlan: remove unsed vxlan_dev_dst_port()
2016-11-15 12:16:13 -05:00
wext.h
…
wimax.h
net: treewide: Fix typo found in DocBook/networking.xml
2014-09-05 17:35:28 -07:00
x25.h
…
x25device.h
…
xfrm.h
esp: Add a software GRO codepath
2017-02-15 11:04:11 +01:00