vether(4) is pretty dummy. Nothing denies it to be `IFXF_MPSAFE'.
Index: sys/net/if_vether.c
===
RCS file: /cvs/src/sys/net/if_vether.c,v
retrieving revision 1.33
diff -u -p -r1.33 if_vether.c
--- sys/net/if_vether.c 28 Jul 2020 09:52:32 - 1.33
+++ sys/net/if_vether.c 9 Aug 2020 00:13:17 -
@@ -36,7 +36,7 @@
void vetherattach(int);
intvetherioctl(struct ifnet *, u_long, caddr_t);
-void vetherstart(struct ifnet *);
+void vetherqstart(struct ifqueue *);
intvether_clone_create(struct if_clone *, int);
intvether_clone_destroy(struct ifnet *);
intvether_media_change(struct ifnet *);
@@ -83,12 +83,12 @@ vether_clone_create(struct if_clone *ifc
ifp->if_softc = sc;
ifp->if_ioctl = vetherioctl;
- ifp->if_start = vetherstart;
+ ifp->if_qstart = vetherqstart;
ifq_set_maxlen(>if_snd, IFQ_MAXLEN);
ifp->if_hardmtu = ETHER_MAX_HARDMTU_LEN;
ifp->if_capabilities = IFCAP_VLAN_MTU;
- ifp->if_xflags = IFXF_CLONED;
+ ifp->if_xflags = IFXF_CLONED | IFXF_MPSAFE;
ifmedia_init(>sc_media, 0, vether_media_change,
vether_media_status);
@@ -117,15 +117,12 @@ vether_clone_destroy(struct ifnet *ifp)
* and we only need to discard the packets.
*/
void
-vetherstart(struct ifnet *ifp)
+vetherqstart(struct ifqueue *ifq)
{
+ struct ifnet*ifp = ifq->ifq_if;
struct mbuf *m;
- for (;;) {
- m = ifq_dequeue(>if_snd);
- if (m == NULL)
- return;
-
+ while ((m = ifq_dequeue(ifq)) != NULL) {
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT);
