netdev - Re: [PATCH 2/2 2.6.25-rc8] ixgbe: save and restore pcie/msi state to support EEH recovery

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Date:	Thu, 24 Apr 2008 10:50:06 -0500
From:	wendy xiong <wendyx@...ibm.com>
To:	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, jeff@...zik.org,
	jesse.brandeburg@...el.com, e1000-devel@...ts.sourceforge.net
Subject: Re: [PATCH 2/2 2.6.25-rc8] ixgbe: save and restore pcie/msi state
	to	support EEH recovery

Hi David,

These two patches got ack by Intel developer. Can you put them in your
tree for 2.6.26 kernel?

Thanks,
Wendy
On Thu, 2008-04-10 at 13:48 -0700, Kok, Auke wrote:
> wendy xiong wrote:
> > 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@...ibm.com>
> 
> 
> Thanks Wendy,
> 
> I'll pull (both) these in my tree and make sure they get merged. thanks!
> 
> Auke
> 
> > 
> > 
> > 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);
> > 
> > 
> > 
> > 
> > --
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