Messages in this thread | | | Date | Tue, 8 Jul 2014 14:46:26 -0400 | From | Konrad Rzeszutek Wilk <> | Subject | Re: [PATCH v3 4/7] xen/pciback: Implement PCI reset slot or bus with 'do_flr' SysFS attribute |
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On Tue, Jul 08, 2014 at 07:02:51PM +0100, David Vrabel wrote: > On 08/07/14 19:58, konrad@kernel.org wrote: > > --- a/Documentation/ABI/testing/sysfs-driver-pciback > > +++ b/Documentation/ABI/testing/sysfs-driver-pciback > > @@ -82,3 +82,14 @@ Description: > > device is shared, enabled, or on a level interrupt line. > > Writing a string of DDDD:BB:DD.F will toggle the state. > > This is Domain:Bus:Device.Function where domain is optional. > > + > > +What: /sys/bus/pci/drivers/pciback/do_flr > > +Date: July 2014 > > +KernelVersion: 3.16 > > +Contact: xen-devel@lists.xenproject.org > > +Description: > > + An option to slot or bus reset an PCI device owned by > > + Xen PCI backend. Writing a string of DDDD:BB:DD.F will cause > > + the driver to perform an slot or bus reset if the device > > + supports. It also checks to make sure that all of the devices > > + under the bridge are owned by Xen PCI backend. > > Not sure I like this new interface. I solved this by adding a new reset > file that looked like the regular one the pci would have if it supported > FLR. I'm fairly sure I posted a series for this. Was there a reason > you didn't do this?
It did not work.
During bootup kobject would complain about a secondary 'reset' SysFS on the PCI device.
> > David
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