Commit 9c9e5399 authored by David Arinzon's avatar David Arinzon Committed by David S. Miller
Browse files

net: ena: Don't register memory info on XDP exchange 



Since the queues aren't destroyed when we only exchange XDP programs,
there's no need to re-register them again.

Fixes: 548c4940 ("net: ena: Implement XDP_TX action")
Signed-off-by: default avatarShay Agroskin <shayagr@amazon.com>
Signed-off-by: default avatarDavid Arinzon <darinzon@amazon.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 332b49ff

drivers/net/ethernet/amazon/ena/ena_netdev.c

+5 −3
Original line number Diff line number Diff line
@@ -512,16 +512,18 @@ static void ena_xdp_exchange_program_rx_in_range(struct ena_adapter *adapter, 
						 struct bpf_prog *prog,

						 int first, int count)

{

	struct bpf_prog *old_bpf_prog;

	struct ena_ring *rx_ring;

	int i = 0;



	for (i = first; i < count; i++) {

		rx_ring = &adapter->rx_ring[i];

		xchg(&rx_ring->xdp_bpf_prog, prog);

		if (prog) {

		old_bpf_prog = xchg(&rx_ring->xdp_bpf_prog, prog);



		if (!old_bpf_prog && prog) {

			ena_xdp_register_rxq_info(rx_ring);

			rx_ring->rx_headroom = XDP_PACKET_HEADROOM;

		} else {

		} else if (old_bpf_prog && !prog) {

			ena_xdp_unregister_rxq_info(rx_ring);

			rx_ring->rx_headroom = NET_SKB_PAD;

		}