Commit 983e4345 authored May 14, 2020 by Jesper Dangaard Brouer Committed by Alexei Starovoitov May 14, 2020

sfc: Add XDP frame size



This driver uses RX page-split when possible. It was recently fixed
in commit 86e85bf6 ("sfc: fix XDP-redirect in this driver") to
add needed tailroom for XDP-redirect.

After the fix efx->rx_page_buf_step is the frame size, with enough
head and tail-room for XDP-redirect.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/158945335278.97035.14611425333184621652.stgit@firesoul

parent 63fe91ab

drivers/net/ethernet/sfc/rx.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -308,6 +308,7 @@ static bool efx_do_xdp(struct efx_nic efx, struct efx_channel channel,
		xdp_set_data_meta_invalid(&xdp);
		xdp.data_end = xdp.data + rx_buf->len;
		xdp.rxq = &rx_queue->xdp_rxq_info;
		xdp.frame_sz = efx->rx_page_buf_step;

		xdp_act = bpf_prog_run_xdp(xdp_prog, &xdp);
		rcu_read_unlock();

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