diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index a896ee021e5f9ff3ee17af416026e95f17de5625..30864848950b77af16d72401e2b206583dc9cd02 100644
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -171,6 +171,9 @@ struct vdpa_map_file {
  * @get_vq_num_max:		Get the max size of virtqueue
  *				@vdev: vdpa device
  *				Returns u16: max size of virtqueue
+ * @get_vq_num_min:		Get the min size of virtqueue (optional)
+ *				@vdev: vdpa device
+ *				Returns u16: min size of virtqueue
  * @get_device_id:		Get virtio device id
  *				@vdev: vdpa device
  *				Returns u32: virtio device id
@@ -266,6 +269,7 @@ struct vdpa_config_ops {
 	void (*set_config_cb)(struct vdpa_device *vdev,
 			      struct vdpa_callback *cb);
 	u16 (*get_vq_num_max)(struct vdpa_device *vdev);
+	u16 (*get_vq_num_min)(struct vdpa_device *vdev);
 	u32 (*get_device_id)(struct vdpa_device *vdev);
 	u32 (*get_vendor_id)(struct vdpa_device *vdev);
 	u8 (*get_status)(struct vdpa_device *vdev);