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* [PATCH 2/2 2.6.25-rc8] ixgbe: save and restore pcie/msi state to support EEH recovery
@ 2008-04-10 19:40 wendy xiong
  2008-04-10 20:48 ` Kok, Auke
  0 siblings, 1 reply; 6+ messages in thread
From: wendy xiong @ 2008-04-10 19:40 UTC (permalink / raw)
  To: netdev, jeff, auke-jan.h.kok, jesse.brandeburg, e1000-devel

Hi,

To enable EEH support for pci-express network adapters, pcie/msi state
needs to be saved and restored for that adapter.

We have tested this EEH patch with Intel 10G pci-express ixgbe adapter.

Signed-off-by: Wendy Xiong <wendyx@us.ibm.com>


diff -Nuarp linux-2.6.25-rc8.orig/drivers/net/ixgbe/ixgbe_main.c linux-2.6.25-rc8/drivers/net/ixgbe/ixgbe_main.c
--- linux-2.6.25-rc8.orig/drivers/net/ixgbe/ixgbe_main.c        2008-04-07 19:18:08.000000000 -0500
+++ linux-2.6.25-rc8/drivers/net/ixgbe/ixgbe_main.c     2008-04-10 12:54:17.000000000 -0500
@@ -2654,6 +2654,7 @@ static int __devinit ixgbe_probe(struct
        }

        pci_set_master(pdev);
+       pci_save_state(pdev);

        netdev = alloc_etherdev(sizeof(struct ixgbe_adapter));
        if (!netdev) {
@@ -2910,6 +2911,7 @@ static pci_ers_result_t ixgbe_io_slot_re
                return PCI_ERS_RESULT_DISCONNECT;
        }
        pci_set_master(pdev);
+       pci_restore_state(pdev);

        pci_enable_wake(pdev, PCI_D3hot, 0);
        pci_enable_wake(pdev, PCI_D3cold, 0);





^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2008-04-24 16:21 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-04-10 19:40 [PATCH 2/2 2.6.25-rc8] ixgbe: save and restore pcie/msi state to support EEH recovery wendy xiong
2008-04-10 20:48 ` Kok, Auke
2008-04-24 15:50   ` wendy xiong
2008-04-24 15:54     ` Kok, Auke
2008-04-24 16:21       ` Jeff Garzik
2008-04-24 15:56     ` David Miller

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