On Thu, May 18, 2023 at 12:58 PM Ying Hsu <yinghsu@chromium.org> wrote:
>
> diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
> index 58872a4c2540..a8b217368ca1 100644
> --- a/drivers/net/ethernet/intel/igb/igb_main.c
> +++ b/drivers/net/ethernet/intel/igb/igb_main.c
> @@ -9581,6 +9581,11 @@ static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev,
>         struct net_device *netdev = pci_get_drvdata(pdev);
>         struct igb_adapter *adapter = netdev_priv(netdev);
>
> +       if (state == pci_channel_io_normal) {
> +               dev_warn(&pdev->dev, "Non-correctable non-fatal error reported.\n");
> +               return PCI_ERS_RESULT_CAN_RECOVER;
> +       }
> +

This code may be good to have. But not sure if this should be the fix
for igb_down() synchronization.
Intel guys may comment.

>         netif_device_detach(netdev);
>
>         if (state == pci_channel_io_perm_failure)
> --
> 2.40.1.606.ga4b1b128d6-goog
>
>