r8169: remove hardcoded PCIe registers accesses.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 7a0c800b50ad..ca86e67a33a8 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -3824,23 +3824,21 @@ static void r8168dp_hw_jumbo_disable(struct rtl8169_private *tp)
 static void r8168e_hw_jumbo_enable(struct rtl8169_private *tp)
 {
         void __iomem *ioaddr = tp->mmio_addr;
-        struct pci_dev *pdev = tp->pci_dev;
 
         RTL_W8(MaxTxPacketSize, 0x3f);
         RTL_W8(Config3, RTL_R8(Config3) | Jumbo_En0);
         RTL_W8(Config4, RTL_R8(Config4) | 0x01);
-        pci_write_config_byte(pdev, 0x79, 0x20);
+        rtl_tx_performance_tweak(tp->pci_dev, 0x2 << MAX_READ_REQUEST_SHIFT);
 }
 
 static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
 {
         void __iomem *ioaddr = tp->mmio_addr;
-        struct pci_dev *pdev = tp->pci_dev;
 
         RTL_W8(MaxTxPacketSize, 0x0c);
         RTL_W8(Config3, RTL_R8(Config3) & ~Jumbo_En0);
         RTL_W8(Config4, RTL_R8(Config4) & ~0x01);
-        pci_write_config_byte(pdev, 0x79, 0x50);
+        rtl_tx_performance_tweak(tp->pci_dev, 0x5 << MAX_READ_REQUEST_SHIFT);
 }
 
 static void r8168b_0_hw_jumbo_enable(struct rtl8169_private *tp)