netdev - [PATCH v3 0/2] Correctly perform offloads when VNET

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Date:	Thu, 15 Aug 2013 13:02:51 -0400
From:	Vlad Yasevich <vyasevic@...hat.com>
To:	netdev@...r.kernel.org
Cc:	mst@...hat.com, Vlad Yasevich <vyasevic@...hat.com>
Subject: [PATCH v3 0/2] Correctly perform offloads when VNET_HDR is disabled

This is v3 of the patch.  It as been spit into 2 sperate patches as requested.
The asymetry of behavior has been removed.  Now it doesn't matter which
order the VNET_HDR and TUNSETOFFLOAD are performed.  The TUNSETOFFLOAD
ioctl always modifies the ioctl, and IFF_VNET_HDR can be turned on and off
independed of that.  What is different is that when computing features for
GSO, the value of IFF_VNET_HDR is also consulted and a different mask is used.
This way, the following sequence:
	clear IFF_VNET_HDR
	change TUNSETOFFLOAD
	set IFF_VNET_HDR
works and packet packets are delivered in correct format at all times.

Vlad Yasevich (2):
  macvtap: include all checksum offloads in TUN_OFFLOAD mask
  macvtap: Correctly set tap features when IFF_VNET_HDR is disabled.

 drivers/net/macvtap.c | 32 +++++++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 7 deletions(-)

-- 
1.8.1.4

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