> -----Original Message-----
> From: Ding, Xuan <xuan.d...@intel.com>
> Sent: Tuesday, October 25, 2022 4:26 PM
> To: maxime.coque...@redhat.com; Xia, Chenbo <chenbo....@intel.com>
> Cc: dev@dpdk.org; Hu, Jiayu <jiayu...@intel.com>; He, Xingguang
> <xingguang...@intel.com>; Ling, WeiX <weix.l...@intel.com>; Jiang, Cheng1
> <cheng1.ji...@intel.com>; Wang, YuanX <yuanx.w...@intel.com>; Ma, WenwuX
> <wenwux...@intel.com>; Ding, Xuan <xuan.d...@intel.com>
> Subject: [PATCH v8 2/2] examples/vhost: unconfigure DMA vchannel
>
> 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
Reviewed-by: Chenbo Xia <chenbo....@intel.com>
