Index: sys/dev/msk/if_msk.c
===================================================================
--- sys/dev/msk/if_msk.c	(revision 197042)
+++ sys/dev/msk/if_msk.c	(working copy)
@@ -224,7 +224,9 @@
 	{ VENDORID_DLINK, DEVICEID_DLINK_DGE550SX,
 	    "D-Link 550SX Gigabit Ethernet" },
 	{ VENDORID_DLINK, DEVICEID_DLINK_DGE560T,
-	    "D-Link 560T Gigabit Ethernet" }
+	    "D-Link 560T Gigabit Ethernet" },
+	{ VENDORID_DLINK, DEVICEID_DLINK_DGE560SX,
+	    "D-Link 560SX Gigabit Ethernet" }
 };
 
 static const char *model_name[] = {
@@ -1445,6 +1447,7 @@
 	struct msk_softc *sc;
 	struct msk_if_softc *sc_if;
 	struct ifnet *ifp;
+	struct msk_mii_data *mmd;
 	int i, port, error;
 	uint8_t eaddr[6];
 
@@ -1454,7 +1457,8 @@
 	error = 0;
 	sc_if = device_get_softc(dev);
 	sc = device_get_softc(device_get_parent(dev));
-	port = *(int *)device_get_ivars(dev);
+	mmd = device_get_ivars(dev);
+	port = mmd->port;
 
 	sc_if->msk_if_dev = dev;
 	sc_if->msk_port = port;
@@ -1600,7 +1604,8 @@
 mskc_attach(device_t dev)
 {
 	struct msk_softc *sc;
-	int error, msic, msir, *port, reg;
+	struct msk_mii_data *mmd;
+	int error, msic, msir, reg;
 
 	sc = device_get_softc(dev);
 	sc->msk_dev = dev;
@@ -1669,10 +1674,6 @@
 	CSR_WRITE_2(sc, B0_CTST, CS_RST_SET);
 	CSR_WRITE_2(sc, B0_CTST, CS_RST_CLR);
 	sc->msk_pmd = CSR_READ_1(sc, B2_PMD_TYP);
-	 if (sc->msk_pmd == 'L' || sc->msk_pmd == 'S')
-		 sc->msk_coppertype = 0;
-	 else
-		 sc->msk_coppertype = 1;
 	/* Check number of MACs. */
 	sc->msk_num_port = 1;
 	if ((CSR_READ_1(sc, B2_Y2_HW_RES) & CFG_DUAL_MAC_MSK) ==
@@ -1812,15 +1813,18 @@
 		error = ENXIO;
 		goto fail;
 	}
-	port = malloc(sizeof(int), M_DEVBUF, M_WAITOK);
-	if (port == NULL) {
+	mmd = malloc(sizeof(struct msk_mii_data), M_DEVBUF, M_WAITOK | M_ZERO);
+	if (mmd == NULL) {
 		device_printf(dev, "failed to allocate memory for "
 		    "ivars of PORT_A\n");
 		error = ENXIO;
 		goto fail;
 	}
-	*port = MSK_PORT_A;
-	device_set_ivars(sc->msk_devs[MSK_PORT_A], port);
+	mmd->port = MSK_PORT_A;
+	mmd->pmd = sc->msk_pmd;
+	 if (sc->msk_pmd == 'L' || sc->msk_pmd == 'S' || sc->msk_pmd == 'P')
+		mmd->mii_flags |= MIIF_HAVEFIBER;
+	device_set_ivars(sc->msk_devs[MSK_PORT_A], mmd);
 
 	if (sc->msk_num_port > 1) {
 		sc->msk_devs[MSK_PORT_B] = device_add_child(dev, "msk", -1);
@@ -1829,15 +1833,18 @@
 			error = ENXIO;
 			goto fail;
 		}
-		port = malloc(sizeof(int), M_DEVBUF, M_WAITOK);
-		if (port == NULL) {
+		mmd = malloc(sizeof(struct msk_mii_data), M_DEVBUF, M_WAITOK | M_ZERO);
+		if (mmd == NULL) {
 			device_printf(dev, "failed to allocate memory for "
 			    "ivars of PORT_B\n");
 			error = ENXIO;
 			goto fail;
 		}
-		*port = MSK_PORT_B;
-		device_set_ivars(sc->msk_devs[MSK_PORT_B], port);
+		mmd->port = MSK_PORT_B;
+		mmd->pmd = sc->msk_pmd;
+	 	if (sc->msk_pmd == 'L' || sc->msk_pmd == 'S' || sc->msk_pmd == 'P')
+			mmd->mii_flags |= MIIF_HAVEFIBER;
+		device_set_ivars(sc->msk_devs[MSK_PORT_B], mmd);
 	}
 
 	error = bus_generic_attach(dev);
@@ -3794,9 +3801,14 @@
 	/* Set receive filter. */
 	msk_rxfilter(sc_if);
 
-	/* Flush Rx MAC FIFO on any flow control or error. */
-	CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK),
-	    GMR_FS_ANY_ERR);
+	if (sc->msk_hw_id == CHIP_ID_YUKON_XL) {
+		/* Clear flush mask - HW bug. */
+		CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK), 0);
+	} else {
+		/* Flush Rx MAC FIFO on any flow control or error. */
+		CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK),
+		    GMR_FS_ANY_ERR);
+	}
 
 	/*
 	 * Set Rx FIFO flush threshold to 64 bytes + 1 FIFO word
Index: sys/dev/msk/if_mskreg.h
===================================================================
--- sys/dev/msk/if_mskreg.h	(revision 197042)
+++ sys/dev/msk/if_mskreg.h	(working copy)
@@ -149,6 +149,7 @@
  */
 #define DEVICEID_DLINK_DGE550SX	0x4001
 #define DEVICEID_DLINK_DGE560T	0x4b00
+#define DEVICEID_DLINK_DGE560SX	0x4b02
 
 #define BIT_31		(1 << 31)
 #define BIT_30		(1 << 30)
@@ -2403,6 +2404,12 @@
 #define	MSK_TX_TIMEOUT		5
 #define	MSK_PUT_WM	10
 
+struct msk_mii_data {
+	int		port;
+	uint32_t	pmd;
+	int		mii_flags;
+};
+
 /* Forward decl. */
 struct msk_if_softc;
 
@@ -2466,7 +2473,6 @@
 	uint8_t			msk_num_port;
 	int			msk_ramsize;	/* amount of SRAM on NIC */
 	uint32_t		msk_pmd;	/* physical media type */
-	uint32_t		msk_coppertype;
 	uint32_t		msk_intrmask;
 	uint32_t		msk_intrhwemask;
 	uint32_t		msk_pflags;
Index: sys/dev/mii/e1000phy.c
===================================================================
--- sys/dev/mii/e1000phy.c	(revision 197042)
+++ sys/dev/mii/e1000phy.c	(working copy)
@@ -59,6 +59,9 @@
 #include "miidevs.h"
 
 #include <dev/mii/e1000phyreg.h>
+/* XXX */
+#include <machine/bus.h>
+#include <dev/msk/if_mskreg.h>
 
 #include "miibus_if.h"
 
@@ -68,6 +71,7 @@
 struct e1000phy_softc {
 	struct mii_softc mii_sc;
 	int mii_model;
+	struct msk_mii_data *mmd;
 };
 
 static device_method_t e1000phy_methods[] = {
@@ -130,6 +134,7 @@
 	struct mii_softc *sc;
 	struct mii_attach_args *ma;
 	struct mii_data *mii;
+	struct ifnet *ifp;
 
 	esc = device_get_softc(dev);
 	sc = &esc->mii_sc;
@@ -145,6 +150,16 @@
 	mii->mii_instance++;
 
 	esc->mii_model = MII_MODEL(ma->mii_id2);
+	ifp = sc->mii_pdata->mii_ifp;
+	if (strcmp(ifp->if_dname, "msk") == 0) {
+		/* XXX */
+		esc->mmd = device_get_ivars(
+		    device_get_parent(device_get_parent(dev)));
+		if (esc->mmd != NULL &&
+		    (esc->mmd->mii_flags & MIIF_HAVEFIBER) != 0)
+			sc->mii_flags |= MIIF_HAVEFIBER;
+	}
+
 	switch (esc->mii_model) {
 	case MII_MODEL_MARVELL_E1011:
 	case MII_MODEL_MARVELL_E1112:
@@ -199,6 +214,13 @@
 			reg &= ~E1000_SCR_MODE_MASK;
 			reg |= E1000_SCR_MODE_1000BX;
 			PHY_WRITE(sc, E1000_SCR, reg);
+			if (esc->mmd != NULL && esc->mmd->pmd == 'P') {
+				/* Set SIGDET polarity low for SFP module. */
+				PHY_WRITE(sc, E1000_EADR, 1);
+				reg = PHY_READ(sc, E1000_SCR);
+				reg |= E1000_SCR_FIB_SIGDET_POLARITY;
+				PHY_WRITE(sc, E1000_SCR, reg);
+			}
 			PHY_WRITE(sc, E1000_EADR, page);
 		}
 	} else {
@@ -485,8 +507,11 @@
 			return;
 		}
 	} else {
-		if (ssr & E1000_SSR_1000MBS)
-			mii->mii_media_active |= IFM_1000_SX;
+		/*
+		 * Some fiber PHY(88E8112) does not seem to set resolved
+		 * speed so always assume we've got IFM_1000_SX.
+		 */
+		mii->mii_media_active |= IFM_1000_SX;
 	}
 
 	if (ssr & E1000_SSR_DUPLEX)
Index: sys/dev/mii/e1000phyreg.h
===================================================================
--- sys/dev/mii/e1000phyreg.h	(revision 197042)
+++ sys/dev/mii/e1000phyreg.h	(working copy)
@@ -248,6 +248,11 @@
 
 #define E1000_SCR_EN_DETECT_MASK	0x0300
 
+/* 88E1112 page 1 fiber specific control */
+#define E1000_SCR_FIB_TX_DIS		0x0008
+#define E1000_SCR_FIB_SIGDET_POLARITY	0x0200
+#define E1000_SCR_FIB_FORCE_LINK	0x0400
+
 /* 88E1112 page 2 */
 #define E1000_SCR_MODE_MASK		0x0380
 #define E1000_SCR_MODE_AUTO		0x0180