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

From: D M, Sharath Kumar
Date: Mon Sep 11 2023 - 16:55:43 EST




> -----Original Message-----
> From: Bjorn Helgaas <helgaas@xxxxxxxxxx>
> Sent: Saturday, September 9, 2023 1:19 AM
> 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 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.
ok