Function nfp_mtr_policy_delete

dpdk/drivers/net/nfp/nfp_mtr.c:517–548

* Callback to delete MTR policy. * * @param[in] dev * Pointer to Ethernet device. * @param[in] mtr_policy_id * Meter policy id. * @param[out] error * Pointer to the error structure. * * @return * 0 on success, a negative value otherwise and rte_errno is set. */

 *   0 on success, a negative value otherwise and rte_errno is set.
 */
static int
nfp_mtr_policy_delete(struct rte_eth_dev *dev,
		uint32_t mtr_policy_id,
		struct rte_mtr_error *error)
{
	struct nfp_mtr_priv *priv;
	struct nfp_mtr_policy *mtr_policy;
	struct nfp_flower_representor *representor;

	representor = dev->data->dev_private;
	priv = representor->app_fw_flower->mtr_priv;

	/* Check if mtr policy id exist */
	mtr_policy = nfp_mtr_policy_search(priv, mtr_policy_id);
	if (mtr_policy == NULL) {
		return -rte_mtr_error_set(error, EINVAL,
				RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
				NULL, "Request meter policy not exist");
	}

	if (mtr_policy->ref_cnt > 0) {
		return -rte_mtr_error_set(error, EBUSY,
				RTE_MTR_ERROR_TYPE_METER_POLICY,
				NULL, "Request mtr policy is been used");
	}

	/* Remove profile from profile list */
	LIST_REMOVE(mtr_policy, next);
	rte_free(mtr_policy);

	return 0;
}

struct nfp_mtr *
nfp_mtr_find_by_mtr_id(struct nfp_mtr_priv *priv, uint32_t mtr_id)