tg3: Always turn on APE features in mac_mode reg

The APE needs certain bits in the mac_mode register to be enabled for
traffic to flow correctly.  This patch changes the code to always enable
these bits in the presence of the APE.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -2728,12 +2728,10 @@ static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
 		     (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)))
 			mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
 
-		if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
-			mac_mode |= tp->mac_mode &
-				    (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
-			if (mac_mode & MAC_MODE_APE_TX_EN)
-				mac_mode |= MAC_MODE_TDE_ENABLE;
-		}
+		if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
+			mac_mode |= MAC_MODE_APE_TX_EN |
+				    MAC_MODE_APE_RX_EN |
+				    MAC_MODE_TDE_ENABLE;
 
 		tw32_f(MAC_MODE, mac_mode);
 		udelay(100);
@@ -7222,19 +7220,21 @@ static int tg3_chip_reset(struct tg3 *tp)
 		tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
 	}
 
+	if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
+		tp->mac_mode = MAC_MODE_APE_TX_EN |
+			       MAC_MODE_APE_RX_EN |
+			       MAC_MODE_TDE_ENABLE;
+
 	if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
-		tp->mac_mode = MAC_MODE_PORT_MODE_TBI;
-		tw32_f(MAC_MODE, tp->mac_mode);
+		tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
+		val = tp->mac_mode;
 	} else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
-		tp->mac_mode = MAC_MODE_PORT_MODE_GMII;
-		tw32_f(MAC_MODE, tp->mac_mode);
-	} else if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
-		tp->mac_mode &= (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
-		if (tp->mac_mode & MAC_MODE_APE_TX_EN)
-			tp->mac_mode |= MAC_MODE_TDE_ENABLE;
-		tw32_f(MAC_MODE, tp->mac_mode);
+		tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
+		val = tp->mac_mode;
 	} else
-		tw32_f(MAC_MODE, 0);
+		val = 0;
+
+	tw32_f(MAC_MODE, val);
 	udelay(40);
 
 	tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
@@ -8287,7 +8287,7 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 	}
 
 	if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
-		tp->mac_mode &= MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
+		tp->mac_mode = MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
 	else
 		tp->mac_mode = 0;
 	tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
@@ -13729,8 +13729,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 
 	/* Preserve the APE MAC_MODE bits */
 	if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
-		tp->mac_mode = tr32(MAC_MODE) |
-			       MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
+		tp->mac_mode = MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
 	else
 		tp->mac_mode = TG3_DEF_MAC_MODE;