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Date: Sun, 16 Aug 2015 16:04:51 +0300
From: Achiad Shochat <achiad@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>
Cc: netdev@...r.kernel.org, Achiad <achiad@...lanox.com>,
Amir Vadai <amirv@...lanox.com>,
Or Gerlitz <ogerlitz@...lanox.com>,
Saeed Mahameed <saeedm@...lanox.com>,
Tal Alon <talal@...lanox.com>
Subject: [PATCH net-next 7/8] net/mlx5e: Support ethtool get/set_pauseparam
Only rx/tx pause settings.
Autoneg setting is currently not supported.
Signed-off-by: Achiad Shochat <achiad@...lanox.com>
---
.../net/ethernet/mellanox/mlx5/core/en_ethtool.c | 38 ++++++++++++++++++++
drivers/net/ethernet/mellanox/mlx5/core/port.c | 42 ++++++++++++++++++++++
include/linux/mlx5/driver.h | 5 +++
3 files changed, 85 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 77158b3..bce9126 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -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,
};
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index f8db52b..821caaa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
@@ -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);
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 4b5d7fc..8b6d6f2 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -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,
--
1.8.3.1
--
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