[4/4] 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>
---
 doc/guides/vdpadevs/mlx5.rst  | 2 +-
 drivers/vdpa/mlx5/mlx5_vdpa.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
  

On 12/3/20 12:36 AM, Xueming Li wrote:
> 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>
> ---
>  doc/guides/vdpadevs/mlx5.rst  | 2 +-
>  drivers/vdpa/mlx5/mlx5_vdpa.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/doc/guides/vdpadevs/mlx5.rst b/doc/guides/vdpadevs/mlx5.rst
> index 20254257c9..730e171ba3 100644
> --- 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 1f92c529c9..5d954d48ce 100644
> --- 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;
> 

Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime
  

On 12/3/20 12:36 AM, Xueming Li wrote:
> 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>
> ---
>  doc/guides/vdpadevs/mlx5.rst  | 2 +-
>  drivers/vdpa/mlx5/mlx5_vdpa.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)

Series applied to dpdk-next-virtio/main.

Thanks,
Maxime