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

Message ID 20220906052149.21033-3-xuan.ding@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Maxime Coquelin
Headers
Series vhost: introduce DMA vchannel unconfiguration |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/github-robot: build success github build: passed
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-x86_64-unit-testing fail Testing issues
ci/iol-aarch64-compile-testing success Testing PASS
ci/iol-x86_64-compile-testing success Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-aarch64-unit-testing success Testing PASS
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS

Commit Message

Ding, Xuan Sept. 6, 2022, 5:21 a.m. UTC
  From: Xuan Ding <xuan.ding@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.ding@intel.com>
---
 examples/vhost/main.c | 7 +++++++
 1 file changed, 7 insertions(+)
  

Patch

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);
 }