net/ena: remove unused macro

[dpdk.git] / drivers / bus / vdev / rte_bus_vdev.h

diff --git a/drivers/bus/vdev/rte_bus_vdev.h b/drivers/bus/vdev/rte_bus_vdev.h
index 78a032c..d14eeb4 100644 (file)
--- a/drivers/bus/vdev/rte_bus_vdev.h
+++ b/drivers/bus/vdev/rte_bus_vdev.h
@@ -63,14 +63,54 @@ typedef int (rte_vdev_probe_t)(struct rte_vdev_device *dev);
  */
 typedef int (rte_vdev_remove_t)(struct rte_vdev_device *dev);
 
+/**
+ * Driver-specific DMA mapping. After a successful call the device
+ * will be able to read/write from/to this segment.
+ *
+ * @param dev
+ *   Pointer to the Virtual device.
+ * @param addr
+ *   Starting virtual address of memory to be mapped.
+ * @param iova
+ *   Starting IOVA address of memory to be mapped.
+ * @param len
+ *   Length of memory segment being mapped.
+ * @return
+ *   - 0 On success.
+ *   - Negative value and rte_errno is set otherwise.
+ */
+typedef int (rte_vdev_dma_map_t)(struct rte_vdev_device *dev, void *addr,
+                           uint64_t iova, size_t len);
+
+/**
+ * Driver-specific DMA un-mapping. After a successful call the device
+ * will not be able to read/write from/to this segment.
+ *
+ * @param dev
+ *   Pointer to the Virtual device.
+ * @param addr
+ *   Starting virtual address of memory to be unmapped.
+ * @param iova
+ *   Starting IOVA address of memory to be unmapped.
+ * @param len
+ *   Length of memory segment being unmapped.
+ * @return
+ *   - 0 On success.
+ *   - Negative value and rte_errno is set otherwise.
+ */
+typedef int (rte_vdev_dma_unmap_t)(struct rte_vdev_device *dev, void *addr,
+                             uint64_t iova, size_t len);
+
 /**
  * A virtual device driver abstraction.
  */
 struct rte_vdev_driver {
        TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */
-       struct rte_driver driver;      /**< Inherited general driver. */
-       rte_vdev_probe_t *probe;       /**< Virtual device probe function. */
-       rte_vdev_remove_t *remove;     /**< Virtual device remove function. */
+       struct rte_driver driver;        /**< Inherited general driver. */
+       rte_vdev_probe_t *probe;         /**< Virtual device probe function. */
+       rte_vdev_remove_t *remove;       /**< Virtual device remove function. */
+       rte_vdev_dma_map_t *dma_map;     /**< Virtual device DMA map function. */
+       rte_vdev_dma_unmap_t *dma_unmap; /**< Virtual device DMA unmap function. */
 };
 
 /**