Hi Bjorn,
Thanks for your help to finalize the patchset.
There's another suspicious issue in r8169.c, which directly writes PCI_EXP_DEVCTL_NOSNOOP_EN
to PCI_EXP_DEVCTL. I feel it should preserve other bits when setting the NOSNOOP flag.
Regards!
Gerry
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index b47d5b3..4104968 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -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);
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