On Tue, Apr 09, 2019 at 04:36:22PM +0300, Ilya Maximets wrote:
> Application should be able to obtain information like 'ifname' from
> the 'vid' passed to 'destroy_connection' callback. Currently, all the
> API calls with passed 'vid' fails with 'device not found'.
>
> Fixes: efba12a78ddf ("vhost: add user callbacks for socket open/close")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Ilya Maximets <i.maxim...@samsung.com>
> ---
> lib/librte_vhost/socket.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c
> index 3da9de62c..43f091d10 100644
> --- a/lib/librte_vhost/socket.c
> +++ b/lib/librte_vhost/socket.c
> @@ -297,11 +297,12 @@ vhost_user_read_cb(int connfd, void *dat, int *remove)
> if (ret < 0) {
> close(connfd);
> *remove = 1;
> - vhost_destroy_device(conn->vid);
>
> if (vsocket->notify_ops->destroy_connection)
> vsocket->notify_ops->destroy_connection(conn->vid);
>
> + vhost_destroy_device(conn->vid);
By design, notify_ops->destroy_device() should be called before
notify_ops->destroy_connection(). I.e. something like:
vhost_destroy_device_notify(...); // device stop
if (vsocket->notify_ops->destroy_connection) // socket close
vsocket->notify_ops->destroy_connection(conn->vid);
vhost_destroy_device(conn->vid); // free
As destroy_device() callback means device stop (which also
happens in e.g. GET_VRING_BASE).
> +
> pthread_mutex_lock(&vsocket->conn_mutex);
> TAILQ_REMOVE(&vsocket->conn_list, conn, next);
> pthread_mutex_unlock(&vsocket->conn_mutex);
> --
> 2.17.1
>
