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-rw-r--r--sys/mips/atheros/if_arge.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/mips/atheros/if_arge.c b/sys/mips/atheros/if_arge.c
index f4ead993004b..85617387f5d7 100644
--- a/sys/mips/atheros/if_arge.c
+++ b/sys/mips/atheros/if_arge.c
@@ -703,6 +703,9 @@ arge_attach(device_t dev)
ifp->if_snd.ifq_maxlen = ifqmaxlen;
IFQ_SET_READY(&ifp->if_snd);
+ /* Tell the upper layer(s) we support long frames. */
+ ifp->if_capabilities |= IFCAP_VLAN_MTU;
+
ifp->if_capenable = ifp->if_capabilities;
#ifdef DEVICE_POLLING
ifp->if_capabilities |= IFCAP_POLLING;