Re: [PATCH vhost 23/23] vdpa/mlx5: Don't enable non-active VQs in .set_vq_ready()

[Eugenio Perez Martin]

On Mon, Jun 17, 2024 at 5:09 PM Dragos Tatulea <dtatulea@xxxxxxxxxx> wrote:
>
> VQ indices in the range [cur_num_qps, max_vqs) represent queues that
> have not yet been activated. .set_vq_ready should not activate these
> VQs.
>
> Signed-off-by: Dragos Tatulea <dtatulea@xxxxxxxxxx>
> Reviewed-by: Cosmin Ratiu <cratiu@xxxxxxxxxx>

Acked-by: Eugenio Pérez <eperezma@xxxxxxxxxx>

> ---
>  drivers/vdpa/mlx5/net/mlx5_vnet.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> index 1a5ee0d2b47f..a969a7f105a6 100644
> --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
> +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> @@ -1575,6 +1575,9 @@ static int resume_vq(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue *mvq
>         if (!mvq->initialized)
>                 return 0;
>
> +       if (mvq->index >= ndev->cur_num_vqs)
> +               return 0;
> +
>         switch (mvq->fw_state) {
>         case MLX5_VIRTIO_NET_Q_OBJECT_STATE_INIT:
>                 /* Due to a FW quirk we need to modify the VQ fields first then change state.
>
> --
> 2.45.1
>