On Fri, 2006-06-30 at 00:26, Linas Vepstas wrote:
> Adds PCI Error recovery callbacks to the Intel 10-gigabit ethernet
> ixgb device driver. Lightly tested, works.
>
> Signed-off-by: Linas Vepstas <[EMAIL PROTECTED]>
> +/**
> + * ixgb_io_error_detected() - called when PCI error is detected
> + * @pdev pointer to pci device with error
> + * @state pci channel state after error
> + *
> + * This callback is called by the PCI subsystem whenever
> + * a PCI bus error is detected.
> + */
> +static pci_ers_result_t ixgb_io_error_detected (struct pci_dev *pdev,
> + enum pci_channel_state state)
> +{
> + struct net_device *netdev = pci_get_drvdata(pdev);
> + struct ixgb_adapter *adapter = netdev->priv;
> +
> + if(netif_running(netdev))
> + ixgb_down(adapter, TRUE);
> +
> + pci_disable_device(pdev);
> +
> + /* Request a slot reset. */
> + return PCI_ERS_RESULT_NEED_RESET;
> +}
Both pci_disable_device and ixgb_down would access the device. It doesn't
follow Documentation/pci-error-recovery.txt that error_detected shouldn't do
any access to the device.
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