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Commit 3c2d18ef authored by Achiad Shochat's avatar Achiad Shochat Committed by David S. Miller
Browse files

net/mlx5e: Support ethtool get/set_pauseparam 



Only rx/tx pause settings.
Autoneg setting is currently not supported.

Signed-off-by: default avatarAchiad Shochat <achiad@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6fa1bcab

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

+38 −0
Original line number Diff line number Diff line
@@ -820,6 +820,42 @@ static int mlx5e_set_tunable(struct net_device *dev, 
	return err;

}



static void mlx5e_get_pauseparam(struct net_device *netdev,

				 struct ethtool_pauseparam *pauseparam)

{

	struct mlx5e_priv *priv    = netdev_priv(netdev);

	struct mlx5_core_dev *mdev = priv->mdev;

	int err;



	err = mlx5_query_port_pause(mdev, &pauseparam->rx_pause,

				    &pauseparam->tx_pause);

	if (err) {

		netdev_err(netdev, "%s: mlx5_query_port_pause failed:0x%x\n",

			   __func__, err);

	}

}



static int mlx5e_set_pauseparam(struct net_device *netdev,

				struct ethtool_pauseparam *pauseparam)

{

	struct mlx5e_priv *priv    = netdev_priv(netdev);

	struct mlx5_core_dev *mdev = priv->mdev;

	int err;



	if (pauseparam->autoneg)

		return -EINVAL;



	err = mlx5_set_port_pause(mdev,

				  pauseparam->rx_pause ? 1 : 0,

				  pauseparam->tx_pause ? 1 : 0);

	if (err) {

		netdev_err(netdev, "%s: mlx5_set_port_pause failed:0x%x\n",

			   __func__, err);

	}



	return err;

}



const struct ethtool_ops mlx5e_ethtool_ops = {

	.get_drvinfo       = mlx5e_get_drvinfo,

	.get_link          = ethtool_op_get_link,
@@ -841,4 +877,6 @@ const struct ethtool_ops mlx5e_ethtool_ops = { 
	.get_rxnfc         = mlx5e_get_rxnfc,

	.get_tunable       = mlx5e_get_tunable,

	.set_tunable       = mlx5e_set_tunable,

	.get_pauseparam    = mlx5e_get_pauseparam,

	.set_pauseparam    = mlx5e_set_pauseparam,

};

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

+42 −0
Original line number Diff line number Diff line
@@ -334,3 +334,45 @@ int mlx5_query_port_vl_hw_cap(struct mlx5_core_dev *dev, 
	return 0;

}

EXPORT_SYMBOL_GPL(mlx5_query_port_vl_hw_cap);



int mlx5_set_port_pause(struct mlx5_core_dev *dev, u32 rx_pause, u32 tx_pause)

{

	u32 in[MLX5_ST_SZ_DW(pfcc_reg)];

	u32 out[MLX5_ST_SZ_DW(pfcc_reg)];

	int err;



	memset(in, 0, sizeof(in));

	MLX5_SET(pfcc_reg, in, local_port, 1);

	MLX5_SET(pfcc_reg, in, pptx, tx_pause);

	MLX5_SET(pfcc_reg, in, pprx, rx_pause);



	err = mlx5_core_access_reg(dev, in, sizeof(in), out,

				   sizeof(out), MLX5_REG_PFCC, 0, 1);

	return err;

}

EXPORT_SYMBOL_GPL(mlx5_set_port_pause);



int mlx5_query_port_pause(struct mlx5_core_dev *dev,

			  u32 *rx_pause, u32 *tx_pause)

{

	u32 in[MLX5_ST_SZ_DW(pfcc_reg)];

	u32 out[MLX5_ST_SZ_DW(pfcc_reg)];

	int err;



	memset(in, 0, sizeof(in));

	MLX5_SET(pfcc_reg, in, local_port, 1);



	err = mlx5_core_access_reg(dev, in, sizeof(in), out,

				   sizeof(out), MLX5_REG_PFCC, 0, 0);

	if (err)

		return err;



	if (rx_pause)

		*rx_pause = MLX5_GET(pfcc_reg, out, pprx);



	if (tx_pause)

		*tx_pause = MLX5_GET(pfcc_reg, out, pptx);



	return 0;

}

EXPORT_SYMBOL_GPL(mlx5_query_port_pause);

include/linux/mlx5/driver.h

+5 −0
Original line number Diff line number Diff line
@@ -103,6 +103,7 @@ enum { 
	MLX5_REG_PMTU		 = 0x5003,

	MLX5_REG_PTYS		 = 0x5004,

	MLX5_REG_PAOS		 = 0x5006,

	MLX5_REG_PFCC            = 0x5007,

	MLX5_REG_PPCNT		 = 0x5008,

	MLX5_REG_PMAOS		 = 0x5012,

	MLX5_REG_PUDE		 = 0x5009,
@@ -774,6 +775,10 @@ void mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, int *oper_mtu, 
int mlx5_query_port_vl_hw_cap(struct mlx5_core_dev *dev,

			      u8 *vl_hw_cap, u8 local_port);



int mlx5_set_port_pause(struct mlx5_core_dev *dev, u32 rx_pause, u32 tx_pause);

int mlx5_query_port_pause(struct mlx5_core_dev *dev,

			  u32 *rx_pause, u32 *tx_pause);



int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);

void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);

int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,