Dear Kai-Heng,
Am 23.09.20 um 09:47 schrieb Kai-Heng Feng:
We are seeing the following error after S3 resume: [ 704.746874] e1000e 0000:00:1f.6 eno1: Setting page 0x6020 [ 704.844232] e1000e 0000:00:1f.6 eno1: MDI Write did not complete [ 704.902817] e1000e 0000:00:1f.6 eno1: Setting page 0x6020 [ 704.903075] e1000e 0000:00:1f.6 eno1: reading PHY page 769 (or 0x6020 shifted) reg 0x17 [ 704.903281] e1000e 0000:00:1f.6 eno1: Setting page 0x6020 [ 704.903486] e1000e 0000:00:1f.6 eno1: writing PHY page 769 (or 0x6020 shifted) reg 0x17 [ 704.943155] e1000e 0000:00:1f.6 eno1: MDI Error ... [ 705.108161] e1000e 0000:00:1f.6 eno1: Hardware Error Since we don't know what platform firmware may do to the phy, so let's power cycle the phy upon system resume to resolve the issue.
Is there a bug report or list thread for this issue?
Signed-off-by: Kai-Heng Feng <kai.heng.f...@canonical.com> --- drivers/net/ethernet/intel/e1000e/netdev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 664e8ccc88d2..c2a87a408102 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6968,6 +6968,8 @@ static __maybe_unused int e1000e_pm_resume(struct device *dev) !e1000e_check_me(hw->adapter->pdev->device)) e1000e_s0ix_exit_flow(adapter);+ e1000_power_down_phy(adapter);+ rc = __e1000_resume(pdev); if (rc) return rc;
How much does this increase the resume time? Kind regards, Paul
