src/patches/suse-2.6.27.25/patches.drivers/r8169-Tx-performance-tweak-helper

   1 Commit-Id: 458a9f617adfb2fc5f38e7673339115c4ba3290f
   2 From: Francois Romieu <romieu@fr.zoreil.com>
   3 Date: Sat, 2 Aug 2008 15:50:02 +0200
   4 Acked-by: Karsten Keil <kkeil@novell.com>
   5 Reference: bnc#448168
   6 Subject: [PATCH] r8169: Tx performance tweak helper
   7
   8 Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
   9 Cc: Edward Hsu <edward_hsu@realtek.com.tw>
  10
  11 ---
  12  drivers/net/r8169.c |   15 ++++++++++-----
  13  1 file changed, 10 insertions(+), 5 deletions(-)
  14
  15 --- a/drivers/net/r8169.c
  16 +++ b/drivers/net/r8169.c
  17 @@ -2079,12 +2079,20 @@ static void rtl_hw_start_8169(struct net
  18         RTL_W16(IntrMask, tp->intr_event);
  19  }
  20
  21 +static void rtl_tx_performance_tweak(struct pci_dev *pdev, u8 force)
  22 +{
  23 +       u8 ctl;
  24 +
  25 +       pci_read_config_byte(pdev, 0x69, &ctl);
  26 +       ctl = (ctl & ~0x70) | force;
  27 +       pci_write_config_byte(pdev, 0x69, ctl);
  28 +}
  29 +
  30  static void rtl_hw_start_8168(struct net_device *dev)
  31  {
  32         struct rtl8169_private *tp = netdev_priv(dev);
  33         void __iomem *ioaddr = tp->mmio_addr;
  34         struct pci_dev *pdev = tp->pci_dev;
  35 -       u8 ctl;
  36
  37         RTL_W8(Cfg9346, Cfg9346_Unlock);
  38
  39 @@ -2098,10 +2106,7 @@ static void rtl_hw_start_8168(struct net
  40
  41         RTL_W16(CPlusCmd, tp->cp_cmd);
  42
  43 -       /* Tx performance tweak. */
  44 -       pci_read_config_byte(pdev, 0x69, &ctl);
  45 -       ctl = (ctl & ~0x70) | 0x50;
  46 -       pci_write_config_byte(pdev, 0x69, ctl);
  47 +       rtl_tx_performance_tweak(pdev, 0x50);
  48
  49         RTL_W16(IntrMitigate, 0x5151);
  50