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Message-Id: <20200529204610.253456-6-saeedm@mellanox.com>
Date: Fri, 29 May 2020 13:46:08 -0700
From: Saeed Mahameed <saeedm@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>, kuba@...nel.org
Cc: netdev@...r.kernel.org, Tal Gilboa <talgi@...lanox.com>,
Tariq Toukan <tariqt@...lanox.com>,
Saeed Mahameed <saeedm@...lanox.com>
Subject: [net V2 5/7] net/mlx5e: Properly set default values when disabling adaptive moderation
From: Tal Gilboa <talgi@...lanox.com>
Add a call to mlx5e_reset_rx/tx_moderation() when enabling/disabling
adaptive moderation, in order to select the proper default values.
In order to do so, we separate the logic of selecting the moderation values
and setting moderion mode (CQE/EQE based).
Fixes: 0088cbbc4b66 ("net/mlx5e: Enable CQE based moderation on TX CQ")
Fixes: 9908aa292971 ("net/mlx5e: CQE based moderation")
Signed-off-by: Tal Gilboa <talgi@...lanox.com>
Reviewed-by: Tariq Toukan <tariqt@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 10 +++++----
.../ethernet/mellanox/mlx5/core/en_ethtool.c | 21 +++++++++++++++----
.../net/ethernet/mellanox/mlx5/core/en_main.c | 20 ++++++++++++------
3 files changed, 37 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 59745402747be..0a5aada0f50f9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -1068,10 +1068,12 @@ void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv);
void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
int num_channels);
-void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params,
- u8 cq_period_mode);
-void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params,
- u8 cq_period_mode);
+
+void mlx5e_reset_tx_moderation(struct mlx5e_params *params, u8 cq_period_mode);
+void mlx5e_reset_rx_moderation(struct mlx5e_params *params, u8 cq_period_mode);
+void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode);
+void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode);
+
void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
struct mlx5e_params *params);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 6f582eb83e54f..bc290ae80a531 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -527,8 +527,8 @@ int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
struct dim_cq_moder *rx_moder, *tx_moder;
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5e_channels new_channels = {};
+ bool reset_rx, reset_tx;
int err = 0;
- bool reset;
if (!MLX5_CAP_GEN(mdev, cq_moderation))
return -EOPNOTSUPP;
@@ -566,15 +566,28 @@ int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
}
/* we are opened */
- reset = (!!coal->use_adaptive_rx_coalesce != priv->channels.params.rx_dim_enabled) ||
- (!!coal->use_adaptive_tx_coalesce != priv->channels.params.tx_dim_enabled);
+ reset_rx = !!coal->use_adaptive_rx_coalesce != priv->channels.params.rx_dim_enabled;
+ reset_tx = !!coal->use_adaptive_tx_coalesce != priv->channels.params.tx_dim_enabled;
- if (!reset) {
+ if (!reset_rx && !reset_tx) {
mlx5e_set_priv_channels_coalesce(priv, coal);
priv->channels.params = new_channels.params;
goto out;
}
+ if (reset_rx) {
+ u8 mode = MLX5E_GET_PFLAG(&new_channels.params,
+ MLX5E_PFLAG_RX_CQE_BASED_MODER);
+
+ mlx5e_reset_rx_moderation(&new_channels.params, mode);
+ }
+ if (reset_tx) {
+ u8 mode = MLX5E_GET_PFLAG(&new_channels.params,
+ MLX5E_PFLAG_TX_CQE_BASED_MODER);
+
+ mlx5e_reset_tx_moderation(&new_channels.params, mode);
+ }
+
err = mlx5e_safe_switch_channels(priv, &new_channels, NULL, NULL);
out:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index c6b83042d4318..bd8d0e0960857 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -4716,7 +4716,7 @@ static u8 mlx5_to_net_dim_cq_period_mode(u8 cq_period_mode)
DIM_CQ_PERIOD_MODE_START_FROM_EQE;
}
-void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
+void mlx5e_reset_tx_moderation(struct mlx5e_params *params, u8 cq_period_mode)
{
if (params->tx_dim_enabled) {
u8 dim_period_mode = mlx5_to_net_dim_cq_period_mode(cq_period_mode);
@@ -4725,13 +4725,9 @@ void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
} else {
params->tx_cq_moderation = mlx5e_get_def_tx_moderation(cq_period_mode);
}
-
- MLX5E_SET_PFLAG(params, MLX5E_PFLAG_TX_CQE_BASED_MODER,
- params->tx_cq_moderation.cq_period_mode ==
- MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
}
-void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
+void mlx5e_reset_rx_moderation(struct mlx5e_params *params, u8 cq_period_mode)
{
if (params->rx_dim_enabled) {
u8 dim_period_mode = mlx5_to_net_dim_cq_period_mode(cq_period_mode);
@@ -4740,7 +4736,19 @@ void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
} else {
params->rx_cq_moderation = mlx5e_get_def_rx_moderation(cq_period_mode);
}
+}
+
+void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
+{
+ mlx5e_reset_tx_moderation(params, cq_period_mode);
+ MLX5E_SET_PFLAG(params, MLX5E_PFLAG_TX_CQE_BASED_MODER,
+ params->tx_cq_moderation.cq_period_mode ==
+ MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
+}
+void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
+{
+ mlx5e_reset_rx_moderation(params, cq_period_mode);
MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_BASED_MODER,
params->rx_cq_moderation.cq_period_mode ==
MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
--
2.26.2
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