net/mlx5: add Rx and Tx tuning parameters

[dpdk.git] / drivers / net / mlx5 / mlx5_ethdev.c

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 746b94f..3fad199 100644 (file)
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -416,6 +416,45 @@ mlx5_dev_configure(struct rte_eth_dev *dev)
        return 0;
 }
 
+/**
+ * Sets default tuning parameters.
+ *
+ * @param dev
+ *   Pointer to Ethernet device.
+ * @param[out] info
+ *   Info structure output buffer.
+ */
+static void
+mlx5_set_default_params(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
+{
+       struct priv *priv = dev->data->dev_private;
+
+       /* Minimum CPU utilization. */
+       info->default_rxportconf.ring_size = 256;
+       info->default_txportconf.ring_size = 256;
+       info->default_rxportconf.burst_size = 64;
+       info->default_txportconf.burst_size = 64;
+       if (priv->link_speed_capa & ETH_LINK_SPEED_100G) {
+               info->default_rxportconf.nb_queues = 16;
+               info->default_txportconf.nb_queues = 16;
+               if (dev->data->nb_rx_queues > 2 ||
+                   dev->data->nb_tx_queues > 2) {
+                       /* Max Throughput. */
+                       info->default_rxportconf.ring_size = 2048;
+                       info->default_txportconf.ring_size = 2048;
+               }
+       } else {
+               info->default_rxportconf.nb_queues = 8;
+               info->default_txportconf.nb_queues = 8;
+               if (dev->data->nb_rx_queues > 2 ||
+                   dev->data->nb_tx_queues > 2) {
+                       /* Max Throughput. */
+                       info->default_rxportconf.ring_size = 4096;
+                       info->default_txportconf.ring_size = 4096;
+               }
+       }
+}
+
 /**
  * DPDK callback to get information about the device.
  *
@@ -458,6 +497,7 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
        info->hash_key_size = rss_hash_default_key_len;
        info->speed_capa = priv->link_speed_capa;
        info->flow_type_rss_offloads = ~MLX5_RSS_HF_MASK;
+       mlx5_set_default_params(dev, info);
 }
 
 /**
@@ -697,9 +737,9 @@ mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete)
        time_t start_time = time(NULL);
 
        do {
-               ret = mlx5_link_update_unlocked_gset(dev, &dev_link);
+               ret = mlx5_link_update_unlocked_gs(dev, &dev_link);
                if (ret)
-                       ret = mlx5_link_update_unlocked_gs(dev, &dev_link);
+                       ret = mlx5_link_update_unlocked_gset(dev, &dev_link);
                if (ret == 0)
                        break;
                /* Handle wait to complete situation. */