[v7,2/2] examples/vhost: unconfigure DMA vchannel
Checks
Commit Message
From: Xuan Ding <xuan.ding@intel.com>
This patch applies rte_vhost_async_dma_unconfigure() to manually free
DMA vchannels. Before unconfiguration, make sure the specified DMA
device is no longer used by any vhost ports.
Signed-off-by: Xuan Ding <xuan.ding@intel.com>
---
examples/vhost/main.c | 8 ++++++++
1 file changed, 8 insertions(+)
Comments
On 10/20/22 11:11, xuan.ding@intel.com wrote:
> From: Xuan Ding <xuan.ding@intel.com>
>
> This patch applies rte_vhost_async_dma_unconfigure() to manually free
> DMA vchannels. Before unconfiguration, make sure the specified DMA
> device is no longer used by any vhost ports.
>
> Signed-off-by: Xuan Ding <xuan.ding@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();
>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Thanks,
Maxime
@@ -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();