Function flow_create_split_inner

dpdk/drivers/net/mlx5/mlx5_flow.c:5599–5639

* The last stage of splitting chain, just creates the subflow * without any modification. * * @param[in] dev * Pointer to Ethernet device. * @param[in] flow * Parent flow structure pointer. * @param[in, out] sub_flow * Pointer to return the created subflow, may be NULL. * @param[in] attr * Flow rule attributes. * @param[in] items * Pattern specification (list terminated by th

 *   0 on success, negative value otherwise
 */
static int
flow_create_split_inner(struct rte_eth_dev *dev,
			struct rte_flow *flow,
			struct mlx5_flow **sub_flow,
			const struct rte_flow_attr *attr,
			const struct rte_flow_item items[],
			const struct rte_flow_action actions[],
			struct mlx5_flow_split_info *flow_split_info,
			struct rte_flow_error *error)
{
	struct mlx5_flow *dev_flow;
	struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();

	dev_flow = flow_drv_prepare(dev, flow, attr, items, actions,
				    flow_split_info->flow_idx, error);
	if (!dev_flow)
		return -rte_errno;
	dev_flow->flow = flow;
	dev_flow->external = flow_split_info->external;
	dev_flow->skip_scale = flow_split_info->skip_scale;
	/* Subflow object was created, we must include one in the list. */
	SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
		      dev_flow->handle, next);
	/*
	 * If dev_flow is as one of the suffix flow, some actions in suffix
	 * flow may need some user defined item layer flags, and pass the
	 * Metadata rxq mark flag to suffix flow as well.
	 */
	if (flow_split_info->prefix_layers)
		dev_flow->handle->layers = flow_split_info->prefix_layers;
	if (flow_split_info->prefix_mark) {
		MLX5_ASSERT(wks);
		wks->mark = 1;
	}
	if (sub_flow)
		*sub_flow = dev_flow;
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
	dev_flow->dv.table_id = flow_split_info->table_id;
#endif
	return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
}

/**
 * Get the sub policy of a meter.