1 files changed, 7 insertions, 1 deletions

diff --git a/sys/dev/netmap/if_vtnet_netmap.h b/sys/dev/netmap/if_vtnet_netmap.h
index 0f686ed60788..a44cc13baae2 100644
--- a/sys/dev/netmap/if_vtnet_netmap.h
+++ b/sys/dev/netmap/if_vtnet_netmap.h
@@ -40,6 +40,9 @@ vtnet_netmap_reg(struct netmap_adapter *na, int state)
 	struct ifnet *ifp = na->ifp;
 	struct vtnet_softc *sc = ifp->if_softc;
 
+	/* Stop all txsync/rxsync and disable them. */
+	netmap_disable_all_rings(ifp);
+
 	/*
 	 * Trigger a device reinit, asking vtnet_init_locked() to
 	 * also enter or exit netmap mode.
@@ -50,7 +53,10 @@ vtnet_netmap_reg(struct netmap_adapter *na, int state)
 	    : VTNET_INIT_NETMAP_EXIT);
 	VTNET_CORE_UNLOCK(sc);
 
-	return 0;
+	/* Enable txsync/rxsync again. */
+	netmap_enable_all_rings(ifp);
+
+	return (0);
 }