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);
}
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;
default:
error = ENXIO;
break;
}
if (error == 0)
ifq->ifcq_flags |= rflags;
return (error);
}
