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

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Date:   Mon, 11 Sep 2023 14:08:54 +0000
From:   "D M, Sharath Kumar" <sharath.kumar.d.m@...el.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
CC:     "lpieralisi@...nel.org" <lpieralisi@...nel.org>,
        "kw@...ux.com" <kw@...ux.com>, "robh@...nel.org" <robh@...nel.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "dinguyen@...nel.org" <dinguyen@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2 2/2] PCI: altera: add suport for Agilex Family FPGA



> -----Original Message-----
> From: Bjorn Helgaas <helgaas@...nel.org>
> Sent: Saturday, September 9, 2023 1:19 AM
> To: D M, Sharath Kumar <sharath.kumar.d.m@...el.com>
> Cc: lpieralisi@...nel.org; kw@...ux.com; robh@...nel.org;
> bhelgaas@...gle.com; linux-pci@...r.kernel.org; dinguyen@...nel.org;
> linux-kernel@...r.kernel.org
> 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@...nel.org>
> > > Sent: Friday, September 8, 2023 6:17 PM
> > > To: D M, Sharath Kumar <sharath.kumar.d.m@...el.com>
> > > Cc: lpieralisi@...nel.org; kw@...ux.com; robh@...nel.org;
> > > bhelgaas@...gle.com; linux-pci@...r.kernel.org; dinguyen@...nel.org;
> > > linux-kernel@...r.kernel.org
> > > 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@...nel.org>
> > >
> > > > > > +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