Function flow_hw_table_destroy

dpdk/drivers/net/mlx5/mlx5_flow_hw.c:4617–4655

* Destroy flow table. * * @param[in] dev * Pointer to the rte_eth_dev structure. * @param[in] table * Pointer to the table to be destroyed. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */

 *   0 on success, a negative errno value otherwise and rte_errno is set.
 */
static int
flow_hw_table_destroy(struct rte_eth_dev *dev,
		      struct rte_flow_template_table *table,
		      struct rte_flow_error *error)
{
	struct mlx5_priv *priv = dev->data->dev_private;
	int i;
	uint32_t fidx = 1;
	uint32_t ridx = 1;

	/* Build ipool allocated object bitmap. */
	mlx5_ipool_flush_cache(table->resource);
	mlx5_ipool_flush_cache(table->flow);
	/* Check if ipool has allocated objects. */
	if (table->refcnt ||
	    mlx5_ipool_get_next(table->flow, &fidx) ||
	    mlx5_ipool_get_next(table->resource, &ridx)) {
		DRV_LOG(WARNING, "Table %p is still in use.", (void *)table);
		return rte_flow_error_set(error, EBUSY,
				   RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
				   NULL,
				   "table is in use");
	}
	LIST_REMOVE(table, next);
	for (i = 0; i < table->nb_item_templates; i++)
		__atomic_fetch_sub(&table->its[i]->refcnt,
				   1, __ATOMIC_RELAXED);
	for (i = 0; i < table->nb_action_templates; i++) {
		__flow_hw_action_template_destroy(dev, &table->ats[i].acts);
		__atomic_fetch_sub(&table->ats[i].action_template->refcnt,
				   1, __ATOMIC_RELAXED);
	}
	mlx5dr_matcher_destroy(table->matcher);
	mlx5_hlist_unregister(priv->sh->groups, &table->grp->entry);
	mlx5_ipool_destroy(table->resource);
	mlx5_ipool_destroy(table->flow);
	mlx5_free(table);
	return 0;
}

/**
 * Parse group's miss actions.