Background of this extension is a problem with the r8169 network driver. Several combinations of board chipsets and network chip versions have problems if ASPM is enabled, therefore we have to disable ASPM per default. However especially on notebooks ASPM can provide significant power-saving, therefore we want to give users the option to enable ASPM. With the new sysfs attribute users can control which ASPM link-states are disabled. After few RFC's this is the submission-ready version. Added to the RFC version has been documentation of the new sysfs attribute. Heiner Kallweit (3): PCI/ASPM: add L1 sub-state support to pci_disable_link_state PCI/ASPM: allow to re-enable Clock PM PCI/ASPM: add sysfs attribute for controlling ASPM Documentation/ABI/testing/sysfs-bus-pci | 13 ++ drivers/pci/pci.h | 8 +- drivers/pci/pcie/aspm.c | 211 ++++++++++++++++++++++-- include/linux/pci-aspm.h | 8 +- 4 files changed, 219 insertions(+), 21 deletions(-) -- 2.21.0
