Re: [PATCH V4 3/3] vdpa_sim: implement get_iova_range()

[Eli Cohen]

On Fri, Oct 23, 2020 at 05:00:43PM +0800, Jason Wang wrote:
> This implements a sample get_iova_range() for the simulator which
> advertise [0, ULLONG_MAX] as the valid range.
> 
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>

Reviewed-by: Eli Cohen <elic@xxxxxxxxxx>

> ---
>  drivers/vdpa/vdpa_sim/vdpa_sim.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
> index 62d640327145..ff6c9fd8d879 100644
> --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
> +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
> @@ -574,6 +574,16 @@ static u32 vdpasim_get_generation(struct vdpa_device *vdpa)
>  	return vdpasim->generation;
>  }
>  
> +static struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
> +{
> +	struct vdpa_iova_range range = {
> +		.first = 0ULL,
> +		.last = ULLONG_MAX,
> +	};
> +
> +	return range;
> +}
> +
>  static int vdpasim_set_map(struct vdpa_device *vdpa,
>  			   struct vhost_iotlb *iotlb)
>  {
> @@ -657,6 +667,7 @@ static const struct vdpa_config_ops vdpasim_net_config_ops = {
>  	.get_config             = vdpasim_get_config,
>  	.set_config             = vdpasim_set_config,
>  	.get_generation         = vdpasim_get_generation,
> +	.get_iova_range         = vdpasim_get_iova_range,
>  	.dma_map                = vdpasim_dma_map,
>  	.dma_unmap              = vdpasim_dma_unmap,
>  	.free                   = vdpasim_free,
> @@ -683,6 +694,7 @@ static const struct vdpa_config_ops vdpasim_net_batch_config_ops = {
>  	.get_config             = vdpasim_get_config,
>  	.set_config             = vdpasim_set_config,
>  	.get_generation         = vdpasim_get_generation,
> +	.get_iova_range         = vdpasim_get_iova_range,
>  	.set_map                = vdpasim_set_map,
>  	.free                   = vdpasim_free,
>  };
> -- 
> 2.20.1
>