On Thu, Dec 8, 2016 at 1:53 AM, Martin KaFai Lau <ka...@fb.com> wrote: > When XDP is active in mlx4, mlx4 is using one page/pkt. > At the same time (i.e. when XDP is active), it is currently > limiting MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) > which is 1514 in x86. AFAICT, we can at least raise the MTU > limit up to PAGE_SIZE - ETH_HLEN - (2 * VLAN_HLEN) which this > patch is doing. It will be useful in the next patch which > allows XDP program to extend the packet by adding new header(s). > > Note: In the earlier XDP patches, there is already existing guard > to ensure the page/pkt scheme only applies when XDP is active > in mlx4. > > Signed-off-by: Martin KaFai Lau <ka...@fb.com>
Acked-by: Saeed Mahameed <sae...@mellanox.com>
