Re: [PATCH 1/1] PCI: qcom: Add early fixup to set the max payload size for IPQ9574

[Praveenkumar I]

On 7/24/2023 6:23 PM, Konrad Dybcio wrote:
> On 24.07.2023 14:47, Praveenkumar I wrote:
> > Set 256 bytes as payload size for IPQ9574 via early fixup. This allows
> > PCIe RC to use the max payload size when a capable link partner is
> > connected.
> >
> > Signed-off-by: Praveenkumar I <quic_ipkumar@xxxxxxxxxxx>
> > ---
> [...]
>
> > +static void qcom_fixup_mps_256(struct pci_dev *dev)
> > +{
> > +	pcie_set_mps(dev, 256);
> Looks like setting "dev->pcie_mpss = 1" here would make the PCIe generic
> code take care of this.
Yes, but that is not helping as the generic code pci_configure_mps() has 
a check for,
/         if (!bridge || !pci_is_pcie(bridge))/
/            return;/
/Here it is returning and mps is not set to new 256 bytes./
> Konrad
--
Thanks,
Praveenkumar