virtio: allow extra context per descriptor

[karo-tx-linux.git] / include / linux / virtio.h

diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 7edfbdb55a995d436bf9e999ce202d0ca0bf2550..ed04753278d4468db7a7156d62ef6d8c9ab20505 100644 (file)
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -44,6 +44,12 @@ int virtqueue_add_inbuf(struct virtqueue *vq,
                        void *data,
                        gfp_t gfp);
 
+int virtqueue_add_inbuf_ctx(struct virtqueue *vq,
+                           struct scatterlist sg[], unsigned int num,
+                           void *data,
+                           void *ctx,
+                           gfp_t gfp);
+
 int virtqueue_add_sgs(struct virtqueue *vq,
                      struct scatterlist *sgs[],
                      unsigned int out_sgs,
@@ -59,6 +65,9 @@ bool virtqueue_notify(struct virtqueue *vq);
 
 void *virtqueue_get_buf(struct virtqueue *vq, unsigned int *len);
 
+void *virtqueue_get_buf_ctx(struct virtqueue *vq, unsigned int *len,
+                           void **ctx);
+
 void virtqueue_disable_cb(struct virtqueue *vq);
 
 bool virtqueue_enable_cb(struct virtqueue *vq);