C++ (Cpp) fq_if_setup_ifclassqの例

コード例 #1

ファイル: pktsched.c プロジェクト: aglab2/darwin-xnu

int
pktsched_setup(struct ifclassq *ifq, u_int32_t scheduler, u_int32_t sflags,
    classq_pkt_type_t ptype)
{
	int error = 0;
	u_int32_t rflags;

	IFCQ_LOCK_ASSERT_HELD(ifq);

	VERIFY(machclk_freq != 0);

	/* Nothing to do unless the scheduler type changes */
	if (ifq->ifcq_type == scheduler)
		return (0);

	/*
	 * Remember the flags that need to be restored upon success, as
	 * they may be cleared when we tear down existing scheduler.
	 */
	rflags = (ifq->ifcq_flags & IFCQF_ENABLED);

	if (ifq->ifcq_type != PKTSCHEDT_NONE) {
		(void) pktsched_teardown(ifq);

		/* Teardown should have succeeded */
		VERIFY(ifq->ifcq_type == PKTSCHEDT_NONE);
		VERIFY(ifq->ifcq_disc == NULL);
		VERIFY(ifq->ifcq_enqueue == NULL);
		VERIFY(ifq->ifcq_dequeue == NULL);
		VERIFY(ifq->ifcq_dequeue_sc == NULL);
		VERIFY(ifq->ifcq_request == NULL);
	}

	switch (scheduler) {
	case PKTSCHEDT_TCQ:
		error = tcq_setup_ifclassq(ifq, sflags, ptype);
		break;

	case PKTSCHEDT_QFQ:
		error = qfq_setup_ifclassq(ifq, sflags, ptype);
		break;
	case PKTSCHEDT_FQ_CODEL:
		error = fq_if_setup_ifclassq(ifq, sflags, ptype);
		break;
	default:
		error = ENXIO;
		break;
	}

	if (error == 0)
		ifq->ifcq_flags |= rflags;

	return (error);
}

コード例 #2

ファイル: pktsched.c プロジェクト: onlynone/xnu

int
pktsched_setup(struct ifclassq *ifq, u_int32_t scheduler, u_int32_t sflags)
{
	int error = 0;
	u_int32_t qflags = sflags;
	u_int32_t rflags;

	IFCQ_LOCK_ASSERT_HELD(ifq);

	VERIFY(machclk_freq != 0);

	/* Nothing to do unless the scheduler type changes */
	if (ifq->ifcq_type == scheduler)
		return (0);

	qflags &= (PKTSCHEDF_QALG_RED | PKTSCHEDF_QALG_RIO |
	    PKTSCHEDF_QALG_BLUE | PKTSCHEDF_QALG_SFB);

	/* These are mutually exclusive */
	if (qflags != 0 &&
	    qflags != PKTSCHEDF_QALG_RED && qflags != PKTSCHEDF_QALG_RIO &&
	    qflags != PKTSCHEDF_QALG_BLUE && qflags != PKTSCHEDF_QALG_SFB) {
		panic("%s: RED|RIO|BLUE|SFB mutually exclusive\n", __func__);
		/* NOTREACHED */
	}

	/*
	 * Remember the flags that need to be restored upon success, as
	 * they may be cleared when we tear down existing scheduler.
	 */
	rflags = (ifq->ifcq_flags & IFCQF_ENABLED);

	if (ifq->ifcq_type != PKTSCHEDT_NONE) {
		(void) pktsched_teardown(ifq);

		/* Teardown should have succeeded */
		VERIFY(ifq->ifcq_type == PKTSCHEDT_NONE);
		VERIFY(ifq->ifcq_disc == NULL);
		VERIFY(ifq->ifcq_enqueue == NULL);
		VERIFY(ifq->ifcq_dequeue == NULL);
		VERIFY(ifq->ifcq_dequeue_sc == NULL);
		VERIFY(ifq->ifcq_request == NULL);
	}

	switch (scheduler) {
#if PKTSCHED_PRIQ
	case PKTSCHEDT_PRIQ:
		error = priq_setup_ifclassq(ifq, sflags);
		break;
#endif /* PKTSCHED_PRIQ */

	case PKTSCHEDT_TCQ:
		error = tcq_setup_ifclassq(ifq, sflags);
		break;

	case PKTSCHEDT_QFQ:
		error = qfq_setup_ifclassq(ifq, sflags);
		break;
	case PKTSCHEDT_FQ_CODEL:
		error = fq_if_setup_ifclassq(ifq, sflags);
		break;
	default:
		error = ENXIO;
		break;
	}

	if (error == 0)
		ifq->ifcq_flags |= rflags;

	return (error);
}