On 12/02/2016 03:23 PM, Martin KaFai Lau wrote:
When XDP prog is attached, it is currently limiting
MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) which is 1514
in x86.
AFAICT, since mlx4 is doing one page per packet for XDP,
we can at least raise the MTU limitation 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).
Is mlx4 the only driver doing page-per-packet?
rick jones
