[v6,21/26] virtio: add helper virtio_find_vqs_ctx_size()

Commit Message

Xuan Zhuo Feb. 24, 2022, 8:10 a.m. UTC

Introduce helper virtio_find_vqs_ctx_size() to call find_vqs and specify
the maximum size of each vq ring.

Signed-off-by: Xuan Zhuo <[e-mail]>
---
 include/linux/virtio_config.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

Patch

diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 5157524d8036..921d8610db0c 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -233,6 +233,18 @@  int virtio_find_vqs_ctx(struct virtio_device *vdev, unsigned nvqs,
 				      desc, NULL);
 }
 
+static inline
+int virtio_find_vqs_ctx_size(struct virtio_device *vdev, u32 nvqs,
+				 struct virtqueue *vqs[],
+				 vq_callback_t *callbacks[],
+				 const char * const names[],
+				 const bool *ctx, struct irq_affinity *desc,
+				 u32 sizes[])
+{
+	return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, ctx,
+				      desc, sizes);
+}
+
 /**
  * virtio_reset_vq - reset a queue individually
  * @vq: the virtqueue