Commit 5a6a22e3 authored by Nikita V. Shirokov's avatar Nikita V. Shirokov Committed by Daniel Borkmann

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: default avatarAlexei Starovoitov <ast@kernel.org>
Acked-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: default avatarNikita V. Shirokov <tehnerd@tehnerd.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent a48ce00f
...@@ -1722,7 +1722,7 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget) ...@@ -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); 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; pkt_off += xdp.data - orig_data;
switch (act) { switch (act) {
......
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