Function flow_drv_prepare

dpdk/drivers/net/mlx5/mlx5_flow.c:4279–4298

* Flow driver preparation API. This abstracts calling driver specific * functions. Parent flow (rte_flow) should have driver type (drv_type). It * calculates the size of memory required for device flow, allocates the memory, * initializes the device flow and returns the pointer. * * @note * This function initializes device flow structure such as dv or verbs in * struct mlx5_flow. Howeve

 *   Pointer to device flow on success, otherwise NULL and rte_errno is set.
 */
static inline struct mlx5_flow *
flow_drv_prepare(struct rte_eth_dev *dev,
		 const struct rte_flow *flow,
		 const struct rte_flow_attr *attr,
		 const struct rte_flow_item items[],
		 const struct rte_flow_action actions[],
		 uint32_t flow_idx,
		 struct rte_flow_error *error)
{
	const struct mlx5_flow_driver_ops *fops;
	enum mlx5_flow_drv_type type = flow->drv_type;
	struct mlx5_flow *mlx5_flow = NULL;

	MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
	fops = flow_get_drv_ops(type);
	mlx5_flow = fops->prepare(dev, attr, items, actions, error);
	if (mlx5_flow)
		mlx5_flow->flow_idx = flow_idx;
	return mlx5_flow;
}

/**
 * Flow driver translation API. This abstracts calling driver specific