[PATCH v2 2/2] examples/vhost: unconfigure DMA vchannel

[xuan . ding]

From: Xuan Ding <xuan.d...@intel.com>

This patch applies rte_vhost_async_dma_unconfigure() API
to manually free 'dma_copy_track' array instead of waiting
until the program ends to be released.

Signed-off-by: Xuan Ding <xuan.d...@intel.com>
---
 examples/vhost/main.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index 7e1666f42a..1754d9ee27 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -1624,6 +1624,13 @@ destroy_device(int vid)
                dma_bind[vid].dmas[VIRTIO_TXQ].async_enabled = false;
        }
 
+       for (i = 0; i < dma_count; i++) {
+               if (rte_vhost_async_dma_unconfigure(dmas_id[i], 0) < 0) {
+                       RTE_LOG(ERR, VHOST_PORT, "Failed to unconfigure DMA in 
vhost.\n");
+                       rte_exit(EXIT_FAILURE, "Cannot use given DMA device\n");
+               }
+       }
+
        rte_free(vdev);
 }
 
-- 
2.17.1