netdev - [PATCH net v2 0/2] macvlan: disable LRO on lowerdev instead of a macvlan

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Message-Id: <cover.1384436410.git.mkubecek@suse.cz>
Date:	Thu, 14 Nov 2013 15:00:06 +0100 (CET)
From:	Michal Kubecek <mkubecek@...e.cz>
To:	netdev@...r.kernel.org
Cc:	"David S. Miller" <davem@...emloft.net>,
	Patrick McHardy <kaber@...sh.net>,
	John Fastabend <john.r.fastabend@...el.com>
Subject: [PATCH net v2 0/2] macvlan: disable LRO on lowerdev instead of a macvlan

A customer of ours encountered a problem with LRO on an ixgbe network
card. Analysis showed that it was a known conflict of forwarding and LRO
but the forwarding was enabled in an LXC container where only a macvlan
was, not the ethernet device itself.

I believe the solution is exactly the same as what we do for "normal"
(802.1q) VLAN devices: if dev_disable_lro() is called for such device,
LRO is disabled on the underlying "real" device instead.

v2: adapt to changes merged from net-next

Michal Kubecek (2):
  macvlan: introduce macvlan_dev_real_dev() helper function
  macvlan: disable LRO on lower device instead of macvlan

 include/linux/if_macvlan.h | 16 ++++++++++++++++
 net/core/dev.c             |  5 +++++
 2 files changed, 21 insertions(+)

-- 
1.8.1.4

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