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[net,05/15] net/mlx5e: Change interrupt moderation channel params also when channels are closed

Message ID 20210212025641.323844-6-saeed@kernel.org
State New
Headers show
Series mlx5 fixes 2021-02-11 | expand

Commit Message

Saeed Mahameed Feb. 12, 2021, 2:56 a.m. UTC 
From: Maxim Mikityanskiy <maximmi@mellanox.com>

struct mlx5e_params contains fields ({rx,tx}_cq_moderation) that depend
on two things: whether DIM is enabled and the state of a private flag
(MLX5E_PFLAG_{RX,TX}_CQE_BASED_MODER). Whenever the DIM state changes,
mlx5e_reset_{rx,tx}_moderation is called to update the fields, however,
only if the channels are open. The flow where the channels are closed
misses the required update of the fields. This commit moves the calls of
mlx5e_reset_{rx,tx}_moderation, so that they run in both flows.

Fixes: ebeaf084ad5c ("net/mlx5e: Properly set default values when disabling adaptive moderation")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../ethernet/mellanox/mlx5/core/en_ethtool.c  | 29 +++++++++----------
 1 file changed, 14 insertions(+), 15 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index d7ff5fa45cb7..8612c388db7d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -597,24 +597,9 @@  int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
 	tx_moder->pkts    = coal->tx_max_coalesced_frames;
 	new_channels.params.tx_dim_enabled = !!coal->use_adaptive_tx_coalesce;
 
-	if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
-		priv->channels.params = new_channels.params;
-		goto out;
-	}
-	/* we are opened */
-
 	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_rx && !reset_tx) {
-		if (!coal->use_adaptive_rx_coalesce)
-			mlx5e_set_priv_channels_rx_coalesce(priv, coal);
-		if (!coal->use_adaptive_tx_coalesce)
-			mlx5e_set_priv_channels_tx_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);
@@ -628,6 +613,20 @@  int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
 		mlx5e_reset_tx_moderation(&new_channels.params, mode);
 	}
 
+	if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
+		priv->channels.params = new_channels.params;
+		goto out;
+	}
+
+	if (!reset_rx && !reset_tx) {
+		if (!coal->use_adaptive_rx_coalesce)
+			mlx5e_set_priv_channels_rx_coalesce(priv, coal);
+		if (!coal->use_adaptive_tx_coalesce)
+			mlx5e_set_priv_channels_tx_coalesce(priv, coal);
+		priv->channels.params = new_channels.params;
+		goto out;
+	}
+
 	err = mlx5e_safe_switch_channels(priv, &new_channels, NULL, NULL);
 
 out: