On Mon, Dec 16, 2013 at 05:57:52PM +0900, Simon Horman wrote: > If VLAN acceleration is used when the kernel receives a packet > then the outer-most VLAN tag will not be present in the packet > when it is received by netdev-linux. Rather, it will be present > in auxdata. > > This patch uses recvmsg() instead of recv() to read auxdata for > each packet and if the vlan_tid is set then it is added to the packet. > > Adding the vlan_tid makes use of headroom available > in the buffer parameter of rx_recv. > > Signed-off-by: Simon Horman <ho...@verge.net.au>
This patch should be Linux-specific, why does it update netdev-bsd? I think we should add a comment to netdev_rx_recv() explaining how the tailroom in the buffer may get used (you might need 4 bytes more tailroom than the actual MTU, and you might get 4 bytes of extra headroom in the result). Thanks, Ben. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
