vdpa/mlx5: set default event mode to polling

For better performance and latency, this patch sets default event
handling mode to polling mode which uses dedicate thread per device to
poll and process event.

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/doc/guides/vdpadevs/mlx5.rst b/doc/guides/vdpadevs/mlx5.rst
index 20254257c9b4073cf802a0d31d72700e40c0e4ca..730e171ba387b8a1ff33acd288ff7e3e56d03c49 100644 (file)
--- a/doc/guides/vdpadevs/mlx5.rst
+++ b/doc/guides/vdpadevs/mlx5.rst
@@ -116,7 +116,7 @@ Driver options
   - 2, Completion queue scheduling will be managed by interrupts. Each CQ burst
     arms the CQ in order to get an interrupt event in the next traffic burst.
 
-  - Default mode is 0.
+  - Default mode is 1.
 
 - ``event_us`` parameter [int]
 

diff --git a/drivers/vdpa/mlx5/mlx5_vdpa.c b/drivers/vdpa/mlx5/mlx5_vdpa.c
index 1f92c529c94db41f5a0063d1bb022c70bc2714b4..5d954d48ceccd7887025819bd098d604ed8bd149 100644 (file)
--- a/drivers/vdpa/mlx5/mlx5_vdpa.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa.c
@@ -647,7 +647,7 @@ mlx5_vdpa_config_get(struct rte_devargs *devargs, struct mlx5_vdpa_priv *priv)
 {
        struct rte_kvargs *kvlist;
 
-       priv->event_mode = MLX5_VDPA_EVENT_MODE_DYNAMIC_TIMER;
+       priv->event_mode = MLX5_VDPA_EVENT_MODE_FIXED_TIMER;
        priv->event_us = 0;
        priv->event_core = -1;
        priv->no_traffic_time_s = MLX5_VDPA_DEFAULT_NO_TRAFFIC_TIME_S;