Index: if_ixl.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_ixl.c,v
retrieving revision 1.50
diff -u -p -r1.50 if_ixl.c
--- if_ixl.c	24 Jun 2020 11:17:21 -0000	1.50
+++ if_ixl.c	24 Jun 2020 12:46:12 -0000
@@ -1629,7 +1629,7 @@ ixl_attach(struct device *parent, struct
 	ifp->if_watchdog = ixl_watchdog;
 	ifp->if_hardmtu = IXL_HARDMTU;
 	strlcpy(ifp->if_xname, DEVNAME(sc), IFNAMSIZ);
-	IFQ_SET_MAXLEN(&ifp->if_snd, 1);
+	IFQ_SET_MAXLEN(&ifp->if_snd, sc->sc_tx_ring_ndescs - 1);
 
 	ifp->if_capabilities = IFCAP_VLAN_MTU;
 #if 0