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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

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

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html