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-rw-r--r--include/linux/virtio.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 2d7a5e04590..9ff8645b7e0 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -8,6 +8,7 @@
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <linux/gfp.h>
+#include <linux/vringh.h>
/**
* virtqueue - a queue to register buffers for sending or receiving.
@@ -40,6 +41,23 @@ int virtqueue_add_buf(struct virtqueue *vq,
void *data,
gfp_t gfp);
+int virtqueue_add_outbuf(struct virtqueue *vq,
+ struct scatterlist sg[], unsigned int num,
+ void *data,
+ gfp_t gfp);
+
+int virtqueue_add_inbuf(struct virtqueue *vq,
+ struct scatterlist sg[], unsigned int num,
+ void *data,
+ gfp_t gfp);
+
+int virtqueue_add_sgs(struct virtqueue *vq,
+ struct scatterlist *sgs[],
+ unsigned int out_sgs,
+ unsigned int in_sgs,
+ void *data,
+ gfp_t gfp);
+
void virtqueue_kick(struct virtqueue *vq);
bool virtqueue_kick_prepare(struct virtqueue *vq);
@@ -64,6 +82,7 @@ unsigned int virtqueue_get_vring_size(struct virtqueue *vq);
* @dev: underlying device.
* @id: the device type identification (used to match it with a driver).
* @config: the configuration ops for this device.
+ * @vringh_config: configuration ops for host vrings.
* @vqs: the list of virtqueues for this device.
* @features: the features supported by both driver and device.
* @priv: private pointer for the driver's use.
@@ -73,6 +92,7 @@ struct virtio_device {
struct device dev;
struct virtio_device_id id;
const struct virtio_config_ops *config;
+ const struct vringh_config_ops *vringh_config;
struct list_head vqs;
/* Note that this is a Linux set_bit-style bitmap. */
unsigned long features[1];