Re: [Xen-devel] [PATCH V2] Xen/pciback: Implement PCI slot or bus reset with 'do_flr' SysFS attribute

From: Govinda Tatti
Date: Wed Nov 29 2017 - 12:40:18 EST



In the case of bus or slot reset, our goal is to reset connected PCIe
fabric/card/endpoint.
The connected card/endpoint can be multi-function device. So, same
walk-through and checking
is needed irrespective of type of reset being used.
I don't follow: The scope of other devices/functions possibly
affected by a reset depends on the type of reset, doesn't it?
For PCIe platforms, both slot and bus reset endup resetting all connected
device/functions on thesecondary bus (behind the root-port or downstream-port).

Cheers
GOVINDA