1 files changed, 28 insertions, 3 deletions

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index bd8aa83b47e5..6be8a43c908a 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -25,6 +25,8 @@
 #define PCS_POWER_STATE_DOWN	0x6
 #define PCS_POWER_STATE_UP	0x4
 
+#define RFE_RD_FIFO_TH_3_DWORDS	0x3
+
 static void pci11x1x_strap_get_status(struct lan743x_adapter *adapter)
 {
 	u32 chip_rev;
@@ -801,7 +803,7 @@ static int lan743x_mdiobus_read_c22(struct mii_bus *bus, int phy_id, int index)
 	u32 val, mii_access;
 	int ret;
 
-	/* comfirm MII not busy */
+	/* confirm MII not busy */
 	ret = lan743x_mac_mii_wait_till_not_busy(adapter);
 	if (ret < 0)
 		return ret;
@@ -866,7 +868,7 @@ static int lan743x_mdiobus_read_c45(struct mii_bus *bus, int phy_id,
 	u32 mmd_access;
 	int ret;
 
-	/* comfirm MII not busy */
+	/* confirm MII not busy */
 	ret = lan743x_mac_mii_wait_till_not_busy(adapter);
 	if (ret < 0)
 		return ret;
@@ -1460,6 +1462,13 @@ static void lan743x_phy_link_status_change(struct net_device *netdev)
 		    phydev->interface == PHY_INTERFACE_MODE_1000BASEX ||
 		    phydev->interface == PHY_INTERFACE_MODE_2500BASEX)
 			lan743x_sgmii_config(adapter);
+
+		data = lan743x_csr_read(adapter, MAC_CR);
+		if (phydev->enable_tx_lpi)
+			data |=  MAC_CR_EEE_EN_;
+		else
+			data &= ~MAC_CR_EEE_EN_;
+		lan743x_csr_write(adapter, MAC_CR, data);
 	}
 }
 
@@ -3175,7 +3184,7 @@ static int lan743x_netdev_change_mtu(struct net_device *netdev, int new_mtu)
 
 	ret = lan743x_mac_set_mtu(adapter, new_mtu);
 	if (!ret)
-		netdev->mtu = new_mtu;
+		WRITE_ONCE(netdev->mtu, new_mtu);
 	return ret;
 }
 
@@ -3272,6 +3281,21 @@ static void lan743x_full_cleanup(struct lan743x_adapter *adapter)
 	lan743x_pci_cleanup(adapter);
 }
 
+static void pci11x1x_set_rfe_rd_fifo_threshold(struct lan743x_adapter *adapter)
+{
+	u16 rev = adapter->csr.id_rev & ID_REV_CHIP_REV_MASK_;
+
+	if (rev == ID_REV_CHIP_REV_PCI11X1X_B0_) {
+		u32 misc_ctl;
+
+		misc_ctl = lan743x_csr_read(adapter, MISC_CTL_0);
+		misc_ctl &= ~MISC_CTL_0_RFE_READ_FIFO_MASK_;
+		misc_ctl |= FIELD_PREP(MISC_CTL_0_RFE_READ_FIFO_MASK_,
+				       RFE_RD_FIFO_TH_3_DWORDS);
+		lan743x_csr_write(adapter, MISC_CTL_0, misc_ctl);
+	}
+}
+
 static int lan743x_hardware_init(struct lan743x_adapter *adapter,
 				 struct pci_dev *pdev)
 {
@@ -3287,6 +3311,7 @@ static int lan743x_hardware_init(struct lan743x_adapter *adapter,
 		pci11x1x_strap_get_status(adapter);
 		spin_lock_init(&adapter->eth_syslock_spinlock);
 		mutex_init(&adapter->sgmii_rw_lock);
+		pci11x1x_set_rfe_rd_fifo_threshold(adapter);
 	} else {
 		adapter->max_tx_channels = LAN743X_MAX_TX_CHANNELS;
 		adapter->used_tx_channels = LAN743X_USED_TX_CHANNELS;