Function mlx4_flow_create

dpdk/drivers/net/mlx4/mlx4_flow.c:1139–1174

* Create a flow. * * @see rte_flow_create() * @see rte_flow_ops */

 * @see rte_flow_ops
 */
static struct rte_flow *
mlx4_flow_create(struct rte_eth_dev *dev,
		 const struct rte_flow_attr *attr,
		 const struct rte_flow_item pattern[],
		 const struct rte_flow_action actions[],
		 struct rte_flow_error *error)
{
	struct mlx4_priv *priv = dev->data->dev_private;
	struct rte_flow *flow;
	int err;

	err = mlx4_flow_prepare(priv, attr, pattern, actions, error, &flow);
	if (err)
		return NULL;
	err = mlx4_flow_toggle(priv, flow, priv->started, error);
	if (!err) {
		struct rte_flow *curr = LIST_FIRST(&priv->flows);

		/* New rules are inserted after internal ones. */
		if (!curr || !curr->internal) {
			LIST_INSERT_HEAD(&priv->flows, flow, next);
		} else {
			while (LIST_NEXT(curr, next) &&
			       LIST_NEXT(curr, next)->internal)
				curr = LIST_NEXT(curr, next);
			LIST_INSERT_AFTER(curr, flow, next);
		}
		return flow;
	}
	if (flow->rss)
		mlx4_rss_put(flow->rss);
	rte_flow_error_set(error, -err, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
			   error->message);
	rte_free(flow);
	return NULL;
}

/**
 * Configure isolated mode.