> -----Original Message-----
> From: dev <dev-boun...@dpdk.org> On Behalf Of Matan Azrad
> Sent: Thursday, June 25, 2020 9:38 PM
> To: Maxime Coquelin <maxime.coque...@redhat.com>
> Cc: dev@dpdk.org; Wang, Xiao W <xiao.w.w...@intel.com>
> Subject: [dpdk-dev] [PATCH v2 4/5] vhost: notify virtq file descriptor update
>
> When virtq call or kick file descriptors are changed in the device
> configuration
> when the queue is ready, the application and the vDPA driver should be
> notified
> to be aligned to the new file descriptors.
>
> Notify the state to be disabled before the file descriptor update and return
> it
> back to be enabled after the update.
>
> Signed-off-by: Matan Azrad <ma...@mellanox.com>
> ---
> lib/librte_vhost/vhost_user.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
> index
> f690fdb..f3966b6 100644
> --- a/lib/librte_vhost/vhost_user.c
> +++ b/lib/librte_vhost/vhost_user.c
> @@ -1624,6 +1624,12 @@
> "vring call idx:%d file:%d\n", file.index, file.fd);
>
> vq = dev->virtqueue[file.index];
> +
> + if (vq->ready) {
> + vhost_user_notify_queue_state(dev, file.index, 0);
> + vq->ready = 0;
> + }
> +
> if (vq->callfd >= 0)
> close(vq->callfd);
>
> @@ -1882,6 +1888,11 @@ static int vhost_user_set_vring_err(struct virtio_net
> **pdev __rte_unused,
> dev->vid, file.index, 1);
> }
>
> + if (vq->ready) {
> + vhost_user_notify_queue_state(dev, file.index, 0);
> + vq->ready = 0;
> + }
> +
> if (vq->kickfd >= 0)
> close(vq->kickfd);
> vq->kickfd = file.fd;
> --
> 1.8.3.1
Reviewed-by: Chenbo Xia <chenbo....@intel.com>
