examples/ntb: add example for NTB

[dpdk.git] / drivers / raw / ntb / ntb.c

diff --git a/drivers/raw/ntb/ntb.c b/drivers/raw/ntb/ntb.c
index c83b8d9..4ba2f3a 100644 (file)
--- a/drivers/raw/ntb/ntb.c
+++ b/drivers/raw/ntb/ntb.c
@@ -240,11 +240,19 @@ ntb_enqueue_bufs(struct rte_rawdev *dev,
                 unsigned int count,
                 rte_rawdev_obj_t context)
 {
-       RTE_SET_USED(dev);
-       RTE_SET_USED(buffers);
-       RTE_SET_USED(count);
-       RTE_SET_USED(context);
+       /* Not FIFO right now. Just for testing memory write. */
+       struct ntb_hw *hw = dev->dev_private;
+       unsigned int i;
+       void *bar_addr;
+       size_t size;
+
+       if (hw->ntb_ops->get_peer_mw_addr == NULL)
+               return -ENOTSUP;
+       bar_addr = (*hw->ntb_ops->get_peer_mw_addr)(dev, 0);
+       size = (size_t)context;
 
+       for (i = 0; i < count; i++)
+               rte_memcpy(bar_addr, buffers[i]->buf_addr, size);
        return 0;
 }
 
@@ -254,11 +262,15 @@ ntb_dequeue_bufs(struct rte_rawdev *dev,
                 unsigned int count,
                 rte_rawdev_obj_t context)
 {
-       RTE_SET_USED(dev);
-       RTE_SET_USED(buffers);
-       RTE_SET_USED(count);
-       RTE_SET_USED(context);
+       /* Not FIFO. Just for testing memory read. */
+       struct ntb_hw *hw = dev->dev_private;
+       unsigned int i;
+       size_t size;
+
+       size = (size_t)context;
 
+       for (i = 0; i < count; i++)
+               rte_memcpy(buffers[i]->buf_addr, hw->mz[i]->addr, size);
        return 0;
 }