net/mlx5e: Use only close NUMA node for default RSS

[cascardo/linux.git] / drivers / net / ethernet / mellanox / mlx5 / core / en_main.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 7fbe1ba..9b58ef6 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2297,11 +2297,22 @@ static void mlx5e_ets_init(struct mlx5e_priv *priv)
 }
 #endif
 
-void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
+void mlx5e_build_default_indir_rqt(struct mlx5_core_dev *mdev,
+                                  u32 *indirection_rqt, int len,
                                   int num_channels)
 {
+       int node = mdev->priv.numa_node;
+       int node_num_of_cores;
        int i;
 
+       if (node == -1)
+               node = first_online_node;
+
+       node_num_of_cores = cpumask_weight(cpumask_of_node(node));
+
+       if (node_num_of_cores)
+               num_channels = min_t(int, num_channels, node_num_of_cores);
+
        for (i = 0; i < len; i++)
                indirection_rqt[i] = i % num_channels;
 }
@@ -2333,7 +2344,7 @@ static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev,
        netdev_rss_key_fill(priv->params.toeplitz_hash_key,
                            sizeof(priv->params.toeplitz_hash_key));
 
-       mlx5e_build_default_indir_rqt(priv->params.indirection_rqt,
+       mlx5e_build_default_indir_rqt(mdev, priv->params.indirection_rqt,
                                      MLX5E_INDIR_RQT_SIZE, num_channels);
 
        priv->params.lro_wqe_sz            =