The latest Realtek vendor driver and its Windows driver implements a feature called "dynamic ASPM" which can improve performance on it's ethernet NICs. Heiner Kallweit pointed out the potential root cause can be that the buffer is to small for its ASPM exit latency. So bring the dynamic ASPM to r8169 so we can have both nice performance and powersaving at the same time. v2: https://lore.kernel.org/netdev/20210812155341.817031-1-kai.heng.feng@xxxxxxxxxxxxx/ v1: https://lore.kernel.org/netdev/20210803152823.515849-1-kai.heng.feng@xxxxxxxxxxxxx/ Kai-Heng Feng (3): r8169: Implement dynamic ASPM mechanism PCI/ASPM: Introduce a new helper to report ASPM support status r8169: Enable ASPM for selected NICs drivers/net/ethernet/realtek/r8169_main.c | 69 ++++++++++++++++++++--- drivers/pci/pcie/aspm.c | 11 ++++ include/linux/pci.h | 2 + 3 files changed, 74 insertions(+), 8 deletions(-) -- 2.32.0
