Hangbin Liu 3bb6245e14 bonding: discard lowest hash bit for 802.3ad layer3+4 ... [ Upstream commit b5f862180d ] After commit 07f4c90062 ("tcp/dccp: try to not exhaust ip_local_port_range in connect()"), we will try to use even ports for connect(). Then if an application (seen clearly with iperf) opens multiple streams to the same destination IP and port, each stream will be given an even source port. So the bonding driver's simple xmit_hash_policy based on layer3+4 addressing will always hash all these streams to the same interface. And the total throughput will limited to a single slave. Change the tcp code will impact the whole tcp behavior, only for bonding usage. Paolo Abeni suggested fix this by changing the bonding code only, which should be more reasonable, and less impact. Fix this by discarding the lowest hash bit because it contains little entropy. After the fix we can re-balance between slaves. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-11-24 08:32:24 +01:00
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bond_3ad.c	bonding: simplify / unify event handling code for 3ad mode.	2015-11-02 22:52:24 -05:00
bond_alb.c	vlan: kill vlan_put_tag helper	2014-11-21 14:20:17 -05:00
bond_debugfs.c	net: Move bonding headers under include/net	2014-11-10 13:27:49 -05:00
bond_main.c	bonding: discard lowest hash bit for 802.3ad layer3+4	2017-11-24 08:32:24 +01:00
bond_netlink.c	bonding: set carrier off for devices created through netlink	2016-08-16 09:30:47 +02:00
bond_options.c	Changes for 4.3	2015-09-09 08:33:31 -07:00
bond_procfs.c	bonding: Display LACP info only to CAP_NET_ADMIN capable user	2015-06-23 03:11:52 -07:00
bond_sysfs.c	bonding: convert num_grat_arp to the new bonding option API	2015-07-27 01:05:24 -07:00
bond_sysfs_slave.c	bonding: export slave's partner_oper_port_state via sysfs and netlink	2015-06-15 16:40:24 -07:00
bonding_priv.h	net/bonding: Make DRV macros private	2015-04-26 22:59:53 -04:00
Makefile	bonding: add sysfs /slave dir for bond slave devices.	2014-01-17 18:51:58 -08:00