> From: Intel-wired-lan [mailto:intel-wired-lan-boun...@osuosl.org] On > Behalf Of Kai-Heng Feng > Sent: Sunday, December 2, 2018 9:55 PM > To: Kirsher, Jeffrey T <jeffrey.t.kirs...@intel.com> > Cc: netdev@vger.kernel.org; Kai-Heng Feng > <kai.heng.f...@canonical.com>; intel-wired-...@lists.osuosl.org; > da...@davemloft.net; linux-ker...@vger.kernel.org > Subject: [Intel-wired-lan] [PATCH] igb: Fix an issue that PME is not enabled > during runtime suspend > > I210 ethernet card doesn't wakeup when a cable gets plugged. It's > because its PME is not set. > > Since commit 42eca2302146 ("PCI: Don't touch card regs after runtime > suspend D3"), if the PCI state is saved, pci_pm_runtime_suspend() stops > calling pci_finish_runtime_suspend(), which enables the PCI PME. > > To fix the issue, let's not to save PCI states when it's runtime > suspend, to let the PCI subsytem enables PME. > > Fixes: 42eca2302146 ("PCI: Don't touch card regs after runtime suspend D3") > Signed-off-by: Kai-Heng Feng <kai.heng.f...@canonical.com> > --- > drivers/net/ethernet/intel/igb/igb_main.c | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-)
Tested-by: Aaron Brown <aaron.f.br...@intel.com>
