| Message ID | 9e5ef666-1ef9-709a-cd7a-ca43eeb9e4a4@gmail.com |
|---|---|
| Headers | show |
| Series | PCI/ASPM: add sysfs attributes for controlling ASPM | expand |
On 23.08.2019 08:11, Heiner Kallweit wrote: > 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 attributes users can control which ASPM > link-states are disabled. > > v2: > - use a dedicated sysfs attribute per link state > - allow separate control of ASPM and PCI PM L1 sub-states > > v3: > - patch 3: statically allocate the attribute group > - patch 3: replace snprintf with printf > - add patch 4 > > Heiner Kallweit (4): > PCI/ASPM: add L1 sub-state support to pci_disable_link_state > PCI/ASPM: allow to re-enable Clock PM > PCI/ASPM: add sysfs attributes for controlling ASPM > PCI/ASPM: remove Kconfig option PCIEASPM_DEBUG and related code > > Documentation/ABI/testing/sysfs-bus-pci | 13 + > drivers/pci/pci-sysfs.c | 6 +- > drivers/pci/pci.h | 12 +- > drivers/pci/pcie/Kconfig | 7 - > drivers/pci/pcie/aspm.c | 300 ++++++++++++++++++------ > include/linux/pci-aspm.h | 10 +- > 6 files changed, 254 insertions(+), 94 deletions(-) > Found a functional error during more testing. Will submit a v4 once fixed. Please disregard this series.