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bpf: mlx5e: Report bpf_prog ID during XDP_QUERY_PROG

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Add support to mlx5e to report bpf_prog ID during XDP_QUERY_PROG.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Alexei Starovoitov <ast@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Martin KaFai Lau 2017-06-15 17:29:11 -07:00 committed by David S. Miller
parent 2e37e9b0f5
commit 821b2e2944
1 changed files with 12 additions and 3 deletions
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15
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
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@ -3599,11 +3599,19 @@ unlock:
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;