Bugfixes Xeon Phi Driver startup - removed check for boot info - added initialization...

[barrelfish] / lib / virtio / vbuffer.h

diff --git a/lib/virtio/vbuffer.h b/lib/virtio/vbuffer.h
index e576d7c..615a74b 100644 (file)
--- a/lib/virtio/vbuffer.h
+++ b/lib/virtio/vbuffer.h
@@ -15,53 +15,23 @@
  */
 struct virtio_buffer_allocator
 {
-    struct virtio_buffer *buffers;  ///< array of virtio_buffers
+    struct virtio_buffer **buffers;  ///< array of virtio_buffers
     uint16_t size;                  ///< number of buffers in this allocator
     uint16_t top;                   ///< pointer to the top slot
     struct capref cap;              ///< frame capability backing this allocator
-    struct virtqueue *queue;        ///< the virtqueue this allocator belongs to
+    struct virtio_device *queue;    ///< the VirtIO device this allocator belongs to
 };
 
 /**
- * \brief   initializes the buffer allocator and allocates memory for the
- *          buffers
+ * \brief   assigns a buffer allocator to a virtqueue that it can be used as
+ *          buffers over the VirtIO channel.
  *
- * \param   alloc   the allocator struct to initialize
- * \param   nbufs   number of buffers to allocate
- * \param   bufsz   size of each buffer to allocate
- *
- * \return  SYS_ERR_OK on success
- */
-errval_t virtio_buffer_alloc_init(struct virtio_buffer_allocator *alloc,
-                                  size_t nbufs,
-                                  size_t bufsz);
-
-/**
- * \brief   destroys a buffer allocator by freeing up all the resources used
- *          by the buffers
- *
- * \param   alloc   the allocator to destroy
- *
- * \returns SYS_ERR_OK on success
- */
-errval_t virtio_buffer_alloc_destroy(struct virtio_buffer_allocator *alloc);
-
-
-struct virtio_buffer *virtio_buffer_alloc(struct virtio_buffer_allocator *alloc);
-
-/**
- * \brief   frees up a unused buffer by returning it to the allocator
- *
- * \param   buf     the buffer to be freed
+ * \param   bf   buffer allocator
+ * \param   vdev virtqueue the buffer allocator gets added to
  */
-errval_t virtio_buffer_free(struct virtio_buffer_allocator *alloc,
-                            struct virtio_buffer *buf);
+errval_t virtio_buffer_alloc_assing(struct virtio_buffer_allocator *bf,
+                                    struct virtio_device *vdev);
 
-/**
- * \brief   returns the backing frame capability of a buffer allocator
- */
-errval_t virtio_buffer_alloc_get_cap(struct virtio_buffer_allocator *alloc,
-                                     struct capref *ret_cap);
 
 
 #endif // VIRTIO_VIRTIO_BUFFER_H