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

From: Manivannan Sadhasivam
Date: Mon Jul 24 2023 - 09:09:17 EST


On Mon, Jul 24, 2023 at 02:53:37PM +0200, 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.
>

Right, also this setting should not be PCI-PCI bridge specific but rather
controller specific.

- Mani

> Konrad

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