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authorJiang Liu <jiang.liu@huawei.com>2012-07-24 17:20:16 +0800
committerBjorn Helgaas <bhelgaas@google.com>2012-08-23 10:11:12 -0600
commit7d7903b2a2e0c87151f8891e67c4c36a86f3fe83 (patch)
tree9a14d31443bd3204efcd86d05d6728c9d6475d49 /drivers/net/ethernet/realtek
parent424ffc943dbac747818b7e4698cdc50be91e4c25 (diff)
downloadlinux-7d7903b2a2e0c87151f8891e67c4c36a86f3fe83.tar.bz2
r8169: Use PCI Express Capability accessors
Use PCI Express Capability access functions to simplify r8169 driver. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/net/ethernet/realtek')
-rw-r--r--drivers/net/ethernet/realtek/r8169.c44
1 files changed, 9 insertions, 35 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index b47d5b35024e..410496817de8 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -833,15 +833,8 @@ static void rtl_unlock_work(struct rtl8169_private *tp)
static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
{
- int cap = pci_pcie_cap(pdev);
-
- if (cap) {
- u16 ctl;
-
- pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
- ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
- pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
- }
+ pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL,
+ PCI_EXP_DEVCTL_READRQ, force);
}
struct rtl_cond {
@@ -4739,28 +4732,14 @@ static void rtl_ephy_init(struct rtl8169_private *tp, const struct ephy_info *e,
static void rtl_disable_clock_request(struct pci_dev *pdev)
{
- int cap = pci_pcie_cap(pdev);
-
- if (cap) {
- u16 ctl;
-
- pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
- ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
- pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
- }
+ pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL,
+ PCI_EXP_LNKCTL_CLKREQ_EN);
}
static void rtl_enable_clock_request(struct pci_dev *pdev)
{
- int cap = pci_pcie_cap(pdev);
-
- if (cap) {
- u16 ctl;
-
- pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
- ctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
- pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
- }
+ pcie_capability_set_word(pdev, PCI_EXP_LNKCTL,
+ PCI_EXP_LNKCTL_CLKREQ_EN);
}
#define R8168_CPCMD_QUIRK_MASK (\
@@ -5405,14 +5384,9 @@ static void rtl_hw_start_8101(struct net_device *dev)
tp->event_slow &= ~RxFIFOOver;
if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
- tp->mac_version == RTL_GIGA_MAC_VER_16) {
- int cap = pci_pcie_cap(pdev);
-
- if (cap) {
- pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
- PCI_EXP_DEVCTL_NOSNOOP_EN);
- }
- }
+ tp->mac_version == RTL_GIGA_MAC_VER_16)
+ pcie_capability_write_word(pdev, PCI_EXP_DEVCTL,
+ PCI_EXP_DEVCTL_NOSNOOP_EN);
RTL_W8(Cfg9346, Cfg9346_Unlock);