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Commit 821b2e29 authored by Martin KaFai Lau's avatar Martin KaFai Lau Committed by David S. Miller
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bpf: mlx5e: Report bpf_prog ID during XDP_QUERY_PROG 



Add support to mlx5e to report bpf_prog ID during XDP_QUERY_PROG.

Signed-off-by: default avatarMartin KaFai Lau <kafai@fb.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: default avatarAlexei Starovoitov <ast@fb.com>
Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Acked-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2e37e9b0

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

+12 −3
Original line number Diff line number Diff line
@@ -3599,11 +3599,19 @@ static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog) 
	return err;

}



static bool mlx5e_xdp_attached(struct net_device *dev)

static u32 mlx5e_xdp_query(struct net_device *dev)

{

	struct mlx5e_priv *priv = netdev_priv(dev);

	const struct bpf_prog *xdp_prog;

	u32 prog_id = 0;



	return !!priv->channels.params.xdp_prog;

	mutex_lock(&priv->state_lock);

	xdp_prog = priv->channels.params.xdp_prog;

	if (xdp_prog)

		prog_id = xdp_prog->aux->id;

	mutex_unlock(&priv->state_lock);



	return prog_id;

}



static int mlx5e_xdp(struct net_device *dev, struct netdev_xdp *xdp)
@@ -3612,7 +3620,8 @@ static int mlx5e_xdp(struct net_device *dev, struct netdev_xdp *xdp) 
	case XDP_SETUP_PROG:

		return mlx5e_xdp_set(dev, xdp->prog);

	case XDP_QUERY_PROG:

		xdp->prog_attached = mlx5e_xdp_attached(dev);

		xdp->prog_id = mlx5e_xdp_query(dev);

		xdp->prog_attached = !!xdp->prog_id;

		return 0;

	default:

		return -EINVAL;