There are rx_ring_num queues. Each queue will load xdp prog. So bpf_prog_add() should add rx_ring_num to ref_cnt.
Signed-off-by: Zhiyi Sun <zhiyi...@gmail.com> --- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 12c99a2..d25e150 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -2650,7 +2650,7 @@ static int mlx4_xdp_set(struct net_device *dev, struct bpf_prog *prog) */ if (priv->xdp_ring_num == xdp_ring_num) { if (prog) { - prog = bpf_prog_add(prog, priv->rx_ring_num - 1); + prog = bpf_prog_add(prog, priv->rx_ring_num); if (IS_ERR(prog)) return PTR_ERR(prog); } @@ -2680,7 +2680,7 @@ static int mlx4_xdp_set(struct net_device *dev, struct bpf_prog *prog) } if (prog) { - prog = bpf_prog_add(prog, priv->rx_ring_num - 1); + prog = bpf_prog_add(prog, priv->rx_ring_num); if (IS_ERR(prog)) return PTR_ERR(prog); } -- 2.9.3