On Fri, Oct 14, 2022 at 7:14 PM <sebastien.boeuf@xxxxxxxxx> wrote:
>
> From: Sebastien Boeuf <sebastien.boeuf@xxxxxxxxx>
>
> Add a new operation to allow a vDPA device to be resumed after it has
> been suspended. Trying to resume a device that wasn't suspended will
> result in a no-op.
>
> This operation is optional. If it's not implemented, the associated
> backend feature bit will not be exposed. And if the feature bit is not
> exposed, invoking this operation will return an error.
>
> Signed-off-by: Sebastien Boeuf <sebastien.boeuf@xxxxxxxxx>
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
> ---
> include/linux/vdpa.h | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
> index 6d0f5e4e82c2..96d308cbf97b 100644
> --- a/include/linux/vdpa.h
> +++ b/include/linux/vdpa.h
> @@ -219,7 +219,10 @@ struct vdpa_map_file {
> * @reset: Reset device
> * @vdev: vdpa device
> * Returns integer: success (0) or error (< 0)
> - * @suspend: Suspend or resume the device (optional)
> + * @suspend: Suspend the device (optional)
> + * @vdev: vdpa device
> + * Returns integer: success (0) or error (< 0)
> + * @resume: Resume the device (optional)
> * @vdev: vdpa device
> * Returns integer: success (0) or error (< 0)
> * @get_config_size: Get the size of the configuration space includes
> @@ -324,6 +327,7 @@ struct vdpa_config_ops {
> void (*set_status)(struct vdpa_device *vdev, u8 status);
> int (*reset)(struct vdpa_device *vdev);
> int (*suspend)(struct vdpa_device *vdev);
> + int (*resume)(struct vdpa_device *vdev);
> size_t (*get_config_size)(struct vdpa_device *vdev);
> void (*get_config)(struct vdpa_device *vdev, unsigned int offset,
> void *buf, unsigned int len);
> --
> 2.34.1
>
> ---------------------------------------------------------------------
> Intel Corporation SAS (French simplified joint stock company)
> Registered headquarters: "Les Montalets"- 2, rue de Paris,
> 92196 Meudon Cedex, France
> Registration Number: 302 456 199 R.C.S. NANTERRE
> Capital: 5 208 026.16 Euros
>
> This e-mail and any attachments may contain confidential material for
> the sole use of the intended recipient(s). Any review or distribution
> by others is strictly prohibited. If you are not the intended
> recipient, please contact the sender and delete all copies.
>
_______________________________________________
Virtualization mailing list
Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
