Function sfc_mae_assign_switch_domain

dpdk/drivers/net/sfc/sfc_switch.c:200–257

}

int
sfc_mae_assign_switch_domain(struct sfc_adapter *sa,
			     uint16_t *switch_domain_id)
{
	struct sfc_hw_switch_id *hw_switch_id;
	struct sfc_mae_switch_domain *domain;
	int rc;

	rte_spinlock_lock(&sfc_mae_switch.lock);

	rc = sfc_hw_switch_id_init(sa, &hw_switch_id);
	if (rc != 0)
		goto fail_hw_switch_id_init;

	domain = sfc_mae_find_switch_domain_by_hw_switch_id(hw_switch_id);
	if (domain != NULL) {
		sfc_hw_switch_id_fini(sa, hw_switch_id);
		goto done;
	}

	domain = rte_zmalloc("sfc_mae_switch_domain", sizeof(*domain), 0);
	if (domain == NULL) {
		rc = ENOMEM;
		goto fail_mem_alloc;
	}

	/*
	 * This code belongs to driver init path, that is, negation is
	 * done at the end of the path by sfc_eth_dev_init(). RTE APIs
	 * negate error codes, so drop negation here.
	 */
	rc = -rte_eth_switch_domain_alloc(&domain->id);
	if (rc != 0)
		goto fail_domain_alloc;

	domain->hw_switch_id = hw_switch_id;

	TAILQ_INIT(&domain->ports);

	TAILQ_INSERT_TAIL(&sfc_mae_switch.domains, domain, entries);

done:
	*switch_domain_id = domain->id;

	rte_spinlock_unlock(&sfc_mae_switch.lock);

	return 0;

fail_domain_alloc:
	rte_free(domain);

fail_mem_alloc:
	sfc_hw_switch_id_fini(sa, hw_switch_id);

fail_hw_switch_id_init:
	rte_spinlock_unlock(&sfc_mae_switch.lock);
	return rc;
}