Re: [Xen-devel] [PATCH v3 4/7] xen/pciback: Implement PCI reset slot or bus with 'do_flr' SysFS attribute

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 08/07/14 19:58, konrad@xxxxxxxxxx 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@xxxxxxxxxxxxxxxxxxxx
> +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?

David

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