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net/mlx5e: Support ethtool get/set_pauseparam 

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

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Achiad Shochat 2015-08-16 16:04:51 +03:00 committed by David S. Miller
parent 6fa1bcab6b
commit 3c2d18ef22
3 changed files with 85 additions and 0 deletions
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38
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
View File

@ -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,
};

42
drivers/net/ethernet/mellanox/mlx5/core/port.c
View File

@ -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);

5
include/linux/mlx5/driver.h
View File

@ -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,