net/virtio-user: do not make vhost channel non-block

There is no need to make the vhost user channel nonblock, and
making it nonblock will make vhost_user_read() fail with EAGAIN
when vhost messages need a reply.

Fixes: bd8f50a45d0f ("net/virtio-user: support server mode")
Cc: stable@dpdk.org
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index 3cf8bc1..a31b9b4 100644 (file)
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -28,7 +28,6 @@ static int
 virtio_user_server_reconnect(struct virtio_user_dev *dev)
 {
        int ret;
-       int flag;
        int connectfd;
        struct rte_eth_dev *eth_dev = &rte_eth_devices[dev->port_id];
 
@@ -49,9 +48,6 @@ virtio_user_server_reconnect(struct virtio_user_dev *dev)
 
        dev->features &= dev->device_features;
 
-       flag = fcntl(connectfd, F_GETFD);
-       fcntl(connectfd, F_SETFL, flag | O_NONBLOCK);
-
        ret = virtio_user_start_device(dev);
        if (ret < 0)
                return -1;