Re: [PATCH v2 2/2] PCI: altera: add suport for Agilex Family FPGA

From: Bjorn Helgaas
Date: Fri Sep 08 2023 - 15:49:13 EST


On Fri, Sep 08, 2023 at 02:35:29PM +0000, D M, Sharath Kumar wrote:
> > -----Original Message-----
> > From: Bjorn Helgaas <helgaas@xxxxxxxxxx>
> > Sent: Friday, September 8, 2023 6:17 PM
> > To: D M, Sharath Kumar <sharath.kumar.d.m@xxxxxxxxx>
> > Cc: lpieralisi@xxxxxxxxxx; kw@xxxxxxxxx; robh@xxxxxxxxxx;
> > bhelgaas@xxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; dinguyen@xxxxxxxxxx;
> > linux-kernel@xxxxxxxxxxxxxxx
> > Subject: Re: [PATCH v2 2/2] PCI: altera: add suport for Agilex Family FPGA
> >
> > On Fri, Sep 08, 2023 at 09:15:09AM +0000, D M, Sharath Kumar wrote:
> > > > -----Original Message-----
> > > > From: Bjorn Helgaas <helgaas@xxxxxxxxxx>
> >
> > > > > +static u32 port_conf_off;
> > > >
> > > > port_conf_off looks like something that should be per-controller.
> > > Specific to agilex, will rename to "aglx_port_conf_off"
> >
> > This comment was not about the *name*, it was about the fact that it's a
> > single instance that applies to *all* controllers. It might be the case that
> > current hardware only supports a single controller, or that if you have
> > multiple controllers they all use the same port_conf_off value, but for
> > generality, values like this would normally be in the per-controller structure.
>
> This driver supports 3 controllers/family ( arria, startix, agilex )
> This variable is only for agilex
> What is ur suggestion ?
> To add in controller data structure (struct altera_pcie_data) ?

That seems like a logical place.