On Mon, Aug 13, 2018 at 12:19:31PM -0600, Myron Stowe wrote:
> In commit 27d868b5e6cf ("PCI: Set MPS to match upstream bridge") Keith made
> sure every device's MPS setting matched its upstream bridge, making it more
> likely that a hot-added devices would work in a system with an optimized MPS
> configuration.
>
> This series augments Keith's approach to include tuning down a Root Port's
> MPS setting in the case where a hot-added device is not capable of matching
> it (see: [1]).
>
> Testing by Dongdong exposed a bug with the logic including Virtual Functions
> (VFs). VFs should not be included so a pre-cursor patch, 1/2, was added to
> cover such.
>
> [1] https://bugzilla.kernel.org/show_bug.cgi?id=200527
>
> Myron Stowe (2):
> PCI: Skip MPS logic for Virtual Functions (VFs)
> PCI: Match Root Port's MPS to endpoint's MPSS as necessary
>
>
> drivers/pci/probe.c | 16 ++++++++++++++--
> 1 file changed, 14 insertions(+), 2 deletions(-)
Applied to pci/enumeration for v4.19, thanks!
