On Wed, 2015-08-19 at 15:07 +0000, Grumbach, Emmanuel wrote:

I'll look at it.
I was almost starting to implement that but then I thought with another
(good?) reason to use LSO. LSO gives me the guarantee that the packet is
directed to one peer, which might not be the case with xmit_more since
we have one Qdisc for several clients in case we are in AP mode.
Building an A-MSDU for several clients is not possible, at least not for
several client in the L2 (different MAC addresses).
LSO avoids this problem completely.

Then, simply calling skb_gso_segment() from the driver might be enough,
and less work for you.

This would even support TSO on IPv6

segs = skb_gso_segment(skb, tp->dev->features &
                            ~(NETIF_F_TSO | NETIF_F_TSO6));