Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-28 Thread Bjorn Helgaas
On Wed, Sep 28, 2016 at 03:33:52PM +, Neftin, Sasha wrote: > > Since I worked with Sasha on this I will provide a bit of information from > what I understand of this bug as well. > > On Tue, Sep 27, 2016 at 12:13 PM, Alex Williamson > wrote: > > On Tue, 27 Sep

RE: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-28 Thread Neftin, Sasha
Since I worked with Sasha on this I will provide a bit of information from what I understand of this bug as well. On Tue, Sep 27, 2016 at 12:13 PM, Alex Williamson wrote: > On Tue, 27 Sep 2016 13:17:02 -0500 > Bjorn Helgaas wrote: > >> On Sun,

Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-27 Thread Alexander Duyck
Since I worked with Sasha on this I will provide a bit of information from what I understand of this bug as well. On Tue, Sep 27, 2016 at 12:13 PM, Alex Williamson wrote: > On Tue, 27 Sep 2016 13:17:02 -0500 > Bjorn Helgaas wrote: > >> On Sun, Sep

Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-27 Thread Alex Williamson
On Tue, 27 Sep 2016 13:17:02 -0500 Bjorn Helgaas wrote: > On Sun, Sep 25, 2016 at 10:02:43AM +0300, Neftin, Sasha wrote: > > On 9/24/2016 12:05 AM, Jeff Kirsher wrote: > > >On Fri, 2016-09-23 at 09:01 -0500, Bjorn Helgaas wrote: > > >>On Thu, Sep 22, 2016 at 11:39:01PM

Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-27 Thread Bjorn Helgaas
On Sun, Sep 25, 2016 at 10:02:43AM +0300, Neftin, Sasha wrote: > On 9/24/2016 12:05 AM, Jeff Kirsher wrote: > >On Fri, 2016-09-23 at 09:01 -0500, Bjorn Helgaas wrote: > >>On Thu, Sep 22, 2016 at 11:39:01PM -0700, Jeff Kirsher wrote: > >>>From: Sasha Neftin > >>> > >>>82579

Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-25 Thread Neftin, Sasha
On 9/24/2016 12:05 AM, Jeff Kirsher wrote: On Fri, 2016-09-23 at 09:01 -0500, Bjorn Helgaas wrote: On Thu, Sep 22, 2016 at 11:39:01PM -0700, Jeff Kirsher wrote: From: Sasha Neftin 82579 has a problem reattaching itself after the device is detached. The bug was

Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-23 Thread Jeff Kirsher
On Fri, 2016-09-23 at 09:01 -0500, Bjorn Helgaas wrote: > On Thu, Sep 22, 2016 at 11:39:01PM -0700, Jeff Kirsher wrote: > > > > From: Sasha Neftin > > > > 82579 has a problem reattaching itself after the device is detached. > > The bug was reported by Redhat. The

Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-23 Thread Bjorn Helgaas
On Thu, Sep 22, 2016 at 11:39:01PM -0700, Jeff Kirsher wrote: > From: Sasha Neftin > > 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. > >

Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-23 Thread Alex Williamson
On Thu, 22 Sep 2016 23:39:01 -0700 Jeff Kirsher wrote: > From: Sasha Neftin > > 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

Re: [net-next 5/5] PCI: disable FLR for 82579 device

2016-09-23 Thread Sergei Shtylyov
Hello. On 9/23/2016 9:39 AM, Jeff Kirsher wrote: From: Sasha Neftin 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

[net-next 5/5] PCI: disable FLR for 82579 device

2016-09-23 Thread Jeff Kirsher
From: Sasha Neftin 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