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

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Date:   Fri, 8 Sep 2023 14:35:29 +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: 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.
> 
> Bjorn
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) ?