On Tue, 17 Apr 2018 21:29:42 -0700 "Nikita V. Shirokov" <tehn...@tehnerd.com> wrote:
> w/ bpf_xdp_adjust_tail helper xdp's data_end pointer could be changed as > well (only "decrease" of pointer's location is going to be supported). > changing of this pointer will change packet's size. > for generic XDP we need to reflect this packet's length change by > adjusting skb's tail pointer > > Acked-by: Alexei Starovoitov <a...@kernel.org> You are missing your own Signed-off-by: line on all of the patches. BTW, thank you for working on this! It have been on my todo-list for a while now! _After_ this patchset, I would like to see adding support for "increasing" the data_end location to create a larger packet. For that we should likely add a data_hard_end pointer. This, would also be helpful in cpu_map_build_skb() to know the data_hard_end, to determine the frame size (as some driver doesn't use PAGE_SIZE frames, ixgbe). -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer
