Index: if_mskvar.h
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_mskvar.h,v
retrieving revision 1.13
diff -u -p -r1.13 if_mskvar.h
--- if_mskvar.h	2 Jun 2017 01:47:36 -0000	1.13
+++ if_mskvar.h	23 Oct 2017 23:23:20 -0000
@@ -212,6 +212,7 @@ struct sk_if_softc {
 	int			sk_pktlen;
 	int			sk_link;
 	struct timeout		sk_tick_ch;
+	struct timeout		sk_tick_rx;
 	struct msk_chain_data	sk_cdata;
 	struct msk_ring_data	*sk_rdata;
 	bus_dmamap_t		sk_ring_map;
Index: if_msk.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_msk.c,v
retrieving revision 1.130
diff -u -p -r1.130 if_msk.c
--- if_msk.c	3 Oct 2017 15:37:58 -0000	1.130
+++ if_msk.c	23 Oct 2017 23:23:20 -0000
@@ -148,7 +148,7 @@ void msk_ifmedia_sts(struct ifnet *, str
 int msk_newbuf(struct sk_if_softc *);
 int msk_init_rx_ring(struct sk_if_softc *);
 int msk_init_tx_ring(struct sk_if_softc *);
-void msk_fill_rx_ring(struct sk_if_softc *);
+void msk_fill_rx_ring(struct sk_if_softc *, int);
 
 int msk_miibus_readreg(struct device *, int, int);
 void msk_miibus_writereg(struct device *, int, int, int);
@@ -156,6 +156,7 @@ void msk_miibus_statchg(struct device *)
 
 void msk_iff(struct sk_if_softc *);
 void msk_tick(void *);
+void msk_fill_rx_tick(void *);
 
 #ifdef MSK_DEBUG
 #define DPRINTF(x)	if (mskdebug) printf x
@@ -428,7 +429,7 @@ msk_init_rx_ring(struct sk_if_softc *sc_
 	/* two ring entries per packet, so the effective ring size is halved */
 	if_rxr_init(&sc_if->sk_cdata.sk_rx_ring, 2, MSK_RX_RING_CNT/2);
 
-	msk_fill_rx_ring(sc_if);
+	msk_fill_rx_ring(sc_if, 0);
 	return (0);
 }
 
@@ -1027,6 +1028,7 @@ msk_attach(struct device *parent, struct
 		ifmedia_set(&sc_if->sk_mii.mii_media, IFM_ETHER|IFM_AUTO);
 
 	timeout_set(&sc_if->sk_tick_ch, msk_tick, sc_if);
+	timeout_set(&sc_if->sk_tick_rx, msk_fill_rx_tick, sc_if);
 
 	/*
 	 * Call MI attach routines.
@@ -1779,7 +1781,7 @@ msk_txeof(struct sk_if_softc *sc_if)
 }
 
 void
-msk_fill_rx_ring(struct sk_if_softc *sc_if)
+msk_fill_rx_ring(struct sk_if_softc *sc_if, int ticks)
 {
 	u_int slots, used;
 
@@ -1792,6 +1794,20 @@ msk_fill_rx_ring(struct sk_if_softc *sc_
 		slots -= used;
 	}
 	if_rxr_put(&sc_if->sk_cdata.sk_rx_ring, slots);
+	if (if_rxr_inuse(&sc_if->sk_cdata.sk_rx_ring) == 0)
+		timeout_add(&sc_if->sk_tick_rx, ticks);
+}
+
+void
+msk_fill_rx_tick(void *xsc_if)
+{
+	struct sk_if_softc *sc_if = xsc_if;
+	int s;
+
+	s = splnet();
+	if (if_rxr_inuse(&sc_if->sk_cdata.sk_rx_ring) == 0)
+		msk_fill_rx_ring(sc_if, 1);
+	splx(s);
 }
 
 void
@@ -1902,12 +1918,12 @@ msk_intr(void *xsc)
 	CSR_WRITE_4(sc, SK_Y2_ICR, 2);
 
 	if (rx[0]) {
-		msk_fill_rx_ring(sc_if0);
+		msk_fill_rx_ring(sc_if0, 0);
 		SK_IF_WRITE_2(sc_if0, 0, SK_RXQ1_Y2_PREF_PUTIDX,
 		    sc_if0->sk_cdata.sk_rx_prod);
 	}
 	if (rx[1]) {
-		msk_fill_rx_ring(sc_if1);
+		msk_fill_rx_ring(sc_if1, 0);
 		SK_IF_WRITE_2(sc_if1, 0, SK_RXQ1_Y2_PREF_PUTIDX,
 		    sc_if1->sk_cdata.sk_rx_prod);
 	}
@@ -2161,6 +2177,7 @@ msk_stop(struct sk_if_softc *sc_if, int 
 
 	DPRINTFN(2, ("msk_stop\n"));
 
+	timeout_del(&sc_if->sk_tick_rx);
 	timeout_del(&sc_if->sk_tick_ch);
 
 	ifp->if_flags &= ~IFF_RUNNING;