net/mlx5e: Support VF vport link state control for SRIOV switchdev mode

Reflect the administative link changes done on the VF representor to the
VF e-switch vport. This means that doing ip link set down/up commands on
the VF rep will modify the e-switch vport state which in turn will make
proper VF drivers to set their carrier accordingly.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index e0d1a56..5e33f6b 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -236,6 +236,35 @@ void mlx5e_nic_rep_unload(struct mlx5_eswitch *esw,
        mlx5e_tc_init(priv);
 }
 
+static int mlx5e_rep_open(struct net_device *dev)
+{
+       struct mlx5e_priv *priv = netdev_priv(dev);
+       struct mlx5_eswitch_rep *rep = priv->ppriv;
+       struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
+       int err;
+
+       err = mlx5e_open(dev);
+       if (err)
+               return err;
+
+       err = mlx5_eswitch_set_vport_state(esw, rep->vport, MLX5_ESW_VPORT_ADMIN_STATE_UP);
+       if (!err)
+               netif_carrier_on(dev);
+
+       return 0;
+}
+
+static int mlx5e_rep_close(struct net_device *dev)
+{
+       struct mlx5e_priv *priv = netdev_priv(dev);
+       struct mlx5_eswitch_rep *rep = priv->ppriv;
+       struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
+
+       (void)mlx5_eswitch_set_vport_state(esw, rep->vport, MLX5_ESW_VPORT_ADMIN_STATE_DOWN);
+
+       return mlx5e_close(dev);
+}
+
 static int mlx5e_rep_get_phys_port_name(struct net_device *dev,
                                        char *buf, size_t len)
 {
@@ -349,8 +378,8 @@ static const struct switchdev_ops mlx5e_rep_switchdev_ops = {
 };
 
 static const struct net_device_ops mlx5e_netdev_ops_rep = {
-       .ndo_open                = mlx5e_open,
-       .ndo_stop                = mlx5e_close,
+       .ndo_open                = mlx5e_rep_open,
+       .ndo_stop                = mlx5e_rep_close,
        .ndo_start_xmit          = mlx5e_xmit,
        .ndo_get_phys_port_name  = mlx5e_rep_get_phys_port_name,
        .ndo_setup_tc            = mlx5e_rep_ndo_setup_tc,