Re: [PATCH v4 1/2] PCI: layerscape: Add support for Link down notification

From: Frank Li
Date: Wed Aug 16 2023 - 11:54:40 EST


On Mon, Jul 31, 2023 at 11:06:31AM -0400, Frank Li wrote:
> On Thu, Jul 20, 2023 at 09:58:33AM -0400, Frank Li wrote:
> > Add support to pass Link down notification to Endpoint function driver
> > so that the LINK_DOWN event can be processed by the function.
> >
> > Acked-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
> > Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
> > ---
>
> @Lorenzo
>
> Could you please consider pick both patches?
> Manivannan already reviewed and only impact layerscape.

@lorenzo:
ping

>
> Frank
>
> > Change from v2 to v4
> > - none
> > Change from v1 to v2
> >
> > drivers/pci/controller/dwc/pci-layerscape-ep.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
> > index de4c1758a6c3..e0969ff2ddf7 100644
> > --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
> > +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
> > @@ -89,6 +89,7 @@ static irqreturn_t ls_pcie_ep_event_handler(int irq, void *dev_id)
> > dev_dbg(pci->dev, "Link up\n");
> > } else if (val & PEX_PF0_PME_MES_DR_LDD) {
> > dev_dbg(pci->dev, "Link down\n");
> > + pci_epc_linkdown(pci->ep.epc);
> > } else if (val & PEX_PF0_PME_MES_DR_HRD) {
> > dev_dbg(pci->dev, "Hot reset\n");
> > }
> > --
> > 2.34.1
> >