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Commit ef918433 authored by Achiad Shochat's avatar Achiad Shochat Committed by David S. Miller
Browse files

net/mlx5e: Support DCBNL IEEE PFC 



Implement the set/get DCBNL IEEE PFC callbacks.

Signed-off-by: default avatarAchiad Shochat <achiad@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 08fb1dac

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

+39 −0
Original line number Diff line number Diff line
@@ -166,6 +166,43 @@ static int mlx5e_dcbnl_ieee_setets(struct net_device *netdev, 
	return 0;

}



static int mlx5e_dcbnl_ieee_getpfc(struct net_device *dev,

				   struct ieee_pfc *pfc)

{

	struct mlx5e_priv *priv = netdev_priv(dev);

	struct mlx5_core_dev *mdev = priv->mdev;



	pfc->pfc_cap = mlx5_max_tc(mdev) + 1;



	return mlx5_query_port_pfc(mdev, &pfc->pfc_en, NULL);

}



static int mlx5e_dcbnl_ieee_setpfc(struct net_device *dev,

				   struct ieee_pfc *pfc)

{

	struct mlx5e_priv *priv = netdev_priv(dev);

	struct mlx5_core_dev *mdev = priv->mdev;

	enum mlx5_port_status ps;

	u8 curr_pfc_en;

	int ret;



	mlx5_query_port_pfc(mdev, &curr_pfc_en, NULL);



	if (pfc->pfc_en == curr_pfc_en)

		return 0;



	mlx5_query_port_admin_status(mdev, &ps);

	if (ps == MLX5_PORT_UP)

		mlx5_set_port_admin_status(mdev, MLX5_PORT_DOWN);



	ret = mlx5_set_port_pfc(mdev, pfc->pfc_en, pfc->pfc_en);



	if (ps == MLX5_PORT_UP)

		mlx5_set_port_admin_status(mdev, MLX5_PORT_UP);



	return ret;

}



static u8 mlx5e_dcbnl_getdcbx(struct net_device *dev)

{

	return DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE;
@@ -185,6 +222,8 @@ static u8 mlx5e_dcbnl_setdcbx(struct net_device *dev, u8 mode) 
const struct dcbnl_rtnl_ops mlx5e_dcbnl_ops = {

	.ieee_getets	= mlx5e_dcbnl_ieee_getets,

	.ieee_setets	= mlx5e_dcbnl_ieee_setets,

	.ieee_getpfc	= mlx5e_dcbnl_ieee_getpfc,

	.ieee_setpfc	= mlx5e_dcbnl_ieee_setpfc,

	.getdcbx	= mlx5e_dcbnl_getdcbx,

	.setdcbx	= mlx5e_dcbnl_setdcbx,

};