Function rte_flow_create

dpdk/lib/ethdev/rte_flow.c:397–424

Create a flow rule on a given port. */

/* Create a flow rule on a given port. */
struct rte_flow *
rte_flow_create(uint16_t port_id,
		const struct rte_flow_attr *attr,
		const struct rte_flow_item pattern[],
		const struct rte_flow_action actions[],
		struct rte_flow_error *error)
{
	struct rte_eth_dev *dev = &rte_eth_devices[port_id];
	struct rte_flow *flow;
	const struct rte_flow_ops *ops = rte_flow_ops_get(port_id, error);

	if (unlikely(!ops))
		return NULL;
	if (likely(!!ops->create)) {
		fts_enter(dev);
		flow = ops->create(dev, attr, pattern, actions, error);
		fts_exit(dev);
		if (flow == NULL)
			flow_err(port_id, -rte_errno, error);

		rte_flow_trace_create(port_id, attr, pattern, actions, flow);

		return flow;
	}
	rte_flow_error_set(error, ENOSYS, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
			   NULL, rte_strerror(ENOSYS));
	return NULL;
}

/* Destroy a flow rule on a given port. */
int