Commit 5a6a22e3 authored Apr 17, 2018 by Nikita V. Shirokov Committed by Daniel Borkmann Apr 18, 2018

bpf: make netronome nfp compatible w/ bpf_xdp_adjust_tail



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 nfp driver we will just calculate packet's length unconditionally

Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

parent a48ce00f

drivers/net/ethernet/netronome/nfp/nfp_net_common.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1722,7 +1722,7 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)

		act = bpf_prog_run_xdp(xdp_prog, &xdp);

		pkt_len -= xdp.data - orig_data;
		pkt_len = xdp.data_end - xdp.data;
		pkt_off += xdp.data - orig_data;

		switch (act) {