From: Xuan Ding <xuan.d...@intel.com>
This patch applies rte_vhost_async_dma_unconfigure() to manually free
DMA vChannels. Before unconfiguration, make sure the specified DMA
vChannel is no longer used by any vhost ports.
Signed-off-by: Xuan Ding <xuan.d...@intel.com>
---
examples/vhost/main.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index ac78704d79..42e53a0f9a 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -2066,6 +2066,14 @@ main(int argc, char *argv[])
RTE_LCORE_FOREACH_WORKER(lcore_id)
rte_eal_wait_lcore(lcore_id);
+ 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 %d in vhost.\n",
dmas_id[i]);
+ rte_exit(EXIT_FAILURE, "Cannot use given DMA device\n");
+ }
+ }
+
/* clean up the EAL */
rte_eal_cleanup();
--
2.17.1
