Function ionic_adminq_wait_for_completion

dpdk/drivers/net/ionic/ionic_main.c:229–277

}

static int
ionic_adminq_wait_for_completion(struct ionic_lif *lif,
		struct ionic_admin_ctx *ctx, unsigned long max_wait)
{
	struct ionic_queue *q = &lif->adminqcq->qcq.q;
	unsigned long step_usec = IONIC_DEVCMD_CHECK_PERIOD_US;
	unsigned long step_deadline;
	unsigned long max_wait_usec = max_wait * 1000000L;
	unsigned long elapsed_usec = 0;
	int budget = 8;
	uint16_t idx;
	void **info;

	step_deadline = IONIC_ADMINQ_WDOG_MS * 1000 / step_usec;

	while (ctx->pending_work && elapsed_usec < max_wait_usec) {
		/*
		 * Locking here as adminq is served inline and could be
		 * called from multiple places
		 */
		rte_spinlock_lock(&lif->adminq_service_lock);

		ionic_qcq_service(&lif->adminqcq->qcq, budget,
				ionic_adminq_service, NULL);

		/*
		 * Ring the doorbell again if work is pending after deadline.
		 */
		if (ctx->pending_work && !step_deadline) {
			step_deadline = IONIC_ADMINQ_WDOG_MS *
				1000 / step_usec;

			rte_spinlock_lock(&lif->adminq_lock);
			idx = Q_NEXT_TO_POST(q, -1);
			info = IONIC_INFO_PTR(q, idx);
			if (info[0] == ctx)
				ionic_q_flush(q);
			rte_spinlock_unlock(&lif->adminq_lock);
		}

		rte_spinlock_unlock(&lif->adminq_service_lock);

		rte_delay_us_block(step_usec);
		elapsed_usec += step_usec;
		step_deadline--;
	}

	return (!ctx->pending_work);
}

int
ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)