[E1000-devel] [PATCH net-next] e1000e: Return PCI_ERS_RESULT_DISCONNECT when bus is disabled

[Breno Leitao]

According to the "PCI Error Recovery" document, if after a recovery, the
bus is disabled, the error_detected function should return
PCI_ERS_RESULT_DISCONNECT. Actually ixgbe error_detected function is
always returning PCI_ERS_RESULT_NEED_RESET, even if the bus is in
failure.
This patch just check if the bus is disabled and then returns
PCI_ERS_RESULT_DISCONNET.

Signed-off-by: Breno Leitão <lei...@linux.vnet.ibm.com>
--

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index da6b37e..eddeaad 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -4618,6 +4618,9 @@ static pci_ers_result_t e1000_io_error_detected(struct 
pci_dev *pdev,
 
        netif_device_detach(netdev);
 
+       if (state == pci_channel_io_perm_failure)
+               return PCI_ERS_RESULT_DISCONNECT;
+
        if (netif_running(netdev))
                e1000e_down(adapter);
        pci_disable_device(pdev);

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