Function sfc_ev_start

dpdk/drivers/net/sfc/sfc_ev.c:817–873

}

int
sfc_ev_start(struct sfc_adapter *sa)
{
	int rc;

	sfc_log_init(sa, "entry");

	rc = efx_ev_init(sa->nic);
	if (rc != 0)
		goto fail_ev_init;

	/* Start management EVQ used for global events */

	/*
	 * Management event queue start polls the queue, but it cannot
	 * interfere with other polling contexts since mgmt_evq_running
	 * is false yet.
	 */
	rc = sfc_ev_qstart(sa->mgmt_evq, sa->mgmt_evq_index);
	if (rc != 0)
		goto fail_mgmt_evq_start;

	rte_spinlock_lock(&sa->mgmt_evq_lock);
	sa->mgmt_evq_running = true;
	rte_spinlock_unlock(&sa->mgmt_evq_lock);

	if (sa->intr.lsc_intr) {
		rc = sfc_ev_qprime(sa->mgmt_evq);
		if (rc != 0)
			goto fail_mgmt_evq_prime;
	}

	/*
	 * Start management EVQ polling. If interrupts are disabled
	 * (not used), it is required to process link status change
	 * and other device level events to avoid unrecoverable
	 * error because the event queue overflow.
	 */
	sfc_ev_mgmt_periodic_qpoll_start(sa);

	/*
	 * Rx/Tx event queues are started/stopped when corresponding
	 * Rx/Tx queue is started/stopped.
	 */

	return 0;

fail_mgmt_evq_prime:
	sfc_ev_qstop(sa->mgmt_evq);

fail_mgmt_evq_start:
	efx_ev_fini(sa->nic);

fail_ev_init:
	sfc_log_init(sa, "failed %d", rc);
	return rc;
}