+ priv->tcf_context = mlx5_flow_tcf_context_create();
+ if (!priv->tcf_context) {
+ err = -rte_errno;
+ DRV_LOG(WARNING,
+ "flow rules relying on switch offloads will not be"
+ " supported: cannot open libmnl socket: %s",
+ strerror(rte_errno));
+ } else {
+ struct rte_flow_error error;
+ unsigned int ifindex = mlx5_ifindex(eth_dev);
+
+ if (!ifindex) {
+ err = -rte_errno;
+ error.message =
+ "cannot retrieve network interface index";
+ } else {
+ err = mlx5_flow_tcf_init(priv->tcf_context,
+ ifindex, &error);
+ }
+ if (err) {
+ DRV_LOG(WARNING,
+ "flow rules relying on switch offloads will"
+ " not be supported: %s: %s",
+ error.message, strerror(rte_errno));
+ mlx5_flow_tcf_context_destroy(priv->tcf_context);
+ priv->tcf_context = NULL;
+ }
+ }