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Message-ID: <ZOYvyUgC1o2lWAzE@lpieralisi>
Date: Wed, 23 Aug 2023 18:11:53 +0200
From: Lorenzo Pieralisi <lpieralisi@...nel.org>
To: Frank Li <Frank.li@....com>
Cc: Zhiqiang.Hou@....com, bhelgaas@...gle.com, imx@...ts.linux.dev,
kernel-janitors@...r.kernel.org, kw@...ux.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
mani@...nel.org, markus.elfring@....de, minghuan.Lian@....com,
mingkai.hu@....com, robh@...nel.org, roy.zang@....com,
xiaowei.bao@....com
Subject: Re: [PATCH v4 1/2] PCI: layerscape: Add support for Link down
notification
On Wed, Aug 16, 2023 at 11:53:16AM -0400, Frank Li wrote:
> 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@...nel.org>
> > > Signed-off-by: Frank Li <Frank.Li@....com>
> > > ---
> >
> > @Lorenzo
> >
> > Could you please consider pick both patches?
> > Manivannan already reviewed and only impact layerscape.
>
> @lorenzo:
> ping
I will have a look tomorrow.
Lorenzo
> >
> > 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
> > >
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