Function mlx5_flow_group_to_table

dpdk/drivers/net/mlx5/mlx5_flow.c:10214–10246

* Translate the rte_flow group index to HW table value. * * If tunnel offload is disabled, all group ids converted to flow table * id using the standard method. * If tunnel offload is enabled, group id can be converted using the * standard or tunnel conversion method. Group conversion method * selection depends on flags in `grp_info` parameter: * - Internal (grp_info.external == 0) groups c

 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
int
mlx5_flow_group_to_table(struct rte_eth_dev *dev,
			 const struct mlx5_flow_tunnel *tunnel,
			 uint32_t group, uint32_t *table,
			 const struct flow_grp_info *grp_info,
			 struct rte_flow_error *error)
{
	int ret;
	bool standard_translation;

	if (!grp_info->skip_scale && grp_info->external &&
	    group < MLX5_MAX_TABLES_EXTERNAL)
		group *= MLX5_FLOW_TABLE_FACTOR;
	if (is_tunnel_offload_active(dev)) {
		standard_translation = !grp_info->external ||
					grp_info->std_tbl_fix;
	} else {
		standard_translation = true;
	}
	DRV_LOG(DEBUG,
		"port %u group=%u transfer=%d external=%d fdb_def_rule=%d translate=%s",
		dev->data->port_id, group, grp_info->transfer,
		grp_info->external, grp_info->fdb_def_rule,
		standard_translation ? "STANDARD" : "TUNNEL");
	if (standard_translation)
		ret = flow_group_to_table(dev->data->port_id, group, table,
					  grp_info, error);
	else
		ret = tunnel_flow_group_to_flow_table(dev, tunnel, group,
						      table, error);

	return ret;
}

/**
 * Discover availability of metadata reg_c's.