xnu-2782.1.97.tar.gz

[apple/xnu.git] / bsd / net / classq / classq_subr.c

diff --git a/bsd/net/classq/classq_subr.c b/bsd/net/classq/classq_subr.c
index d62a1337b44ae9950970eb994d38074e616ecbc8..109cae5866893dc9117650407b717ad564ec50da 100644 (file)
--- a/bsd/net/classq/classq_subr.c
+++ b/bsd/net/classq/classq_subr.c
@@ -115,6 +115,14 @@ ifclassq_setup(struct ifnet *ifp, u_int32_t sflags, boolean_t reuse)
                        maxlen = if_sndq_maxlen;
                IFCQ_SET_MAXLEN(ifq, maxlen);
 
+               if (IFCQ_MAXLEN(ifq) != if_sndq_maxlen &&
+                   IFCQ_TARGET_QDELAY(ifq) == 0) {
+                       /*
+                        * Choose static queues because the interface has
+                        * maximum queue size set
+                        */
+                       sflags &= ~PKTSCHEDF_QALG_DELAYBASED;
+               }
                ifq->ifcq_sflags = sflags;
                err = ifclassq_pktsched_setup(ifq);
                if (err == 0)