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authorMaxim Mikityanskiy <maximmi@mellanox.com>2021-01-28 14:37:59 +0200
committerSaeed Mahameed <saeedm@nvidia.com>2021-02-01 23:02:02 -0800
commit5a2ba25a55c4dc0f143567c99aede768b6628ebd (patch)
tree2353b73bf751bc5fe40557857ad82743aa13664c
parenta5bfe6b4675e0eefbd9418055b5cc6e89af27eb4 (diff)
net/mlx5e: Update max_opened_tc also when channels are closed
max_opened_tc is used for stats, so that potentially non-zero stats won't disappear when num_tc decreases. However, mlx5e_setup_tc_mqprio fails to update it in the flow where channels are closed. This commit fixes it. The new value of priv->channels.params.num_tc is always checked on exit. In case of errors it will just be the old value, and in case of success it will be the updated value. Fixes: 05909babce53 ("net/mlx5e: Avoid reset netdev stats on configuration changes") Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_main.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index a9d824a9cb05..3fc7d18ac868 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3627,12 +3627,10 @@ static int mlx5e_setup_tc_mqprio(struct mlx5e_priv *priv,
err = mlx5e_safe_switch_channels(priv, &new_channels,
mlx5e_num_channels_changed_ctx, NULL);
- if (err)
- goto out;
- priv->max_opened_tc = max_t(u8, priv->max_opened_tc,
- new_channels.params.num_tc);
out:
+ priv->max_opened_tc = max_t(u8, priv->max_opened_tc,
+ priv->channels.params.num_tc);
mutex_unlock(&priv->state_lock);
return err;
}