[Intel-wired-lan] [PATCH] PCI: disable FLR for 82579 device

[Brown, Aaron F]

> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at lists.osuosl.org] On
> Behalf Of Sasha Neftin
> Sent: Wednesday, September 7, 2016 11:27 PM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH] PCI: disable FLR for 82579 device
> 
> 82579 has a problem reattaching itself after the device is detached.
> The bug was reported by Redhat. The suggested fix is to disable
> FLR capability in PCIe configuration space.
> 
> Reproduction:
> Attach the device to a VM, then detach and try to attach again.
> 
> Fix:
> Disable FLR capability to prevent the 82579 from hanging.
> 
> Signed-off-by: Sasha Neftin <sasha.neftin at intel.com>
> ---
>  drivers/pci/quirks.c | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)

Tested-by: Aaron Brown <aaron.f.brown at intel.com>