netdev - RE: [PATCH v2 1/6] Add ancillary bus support

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Message-ID: <BY5PR12MB43228E8DAA0B56BCF43AF3EFDC0D0@BY5PR12MB4322.namprd12.prod.outlook.com>
Date:   Tue, 6 Oct 2020 17:09:09 +0000
From:   Parav Pandit <parav@...dia.com>
To:     Leon Romanovsky <leon@...nel.org>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
CC:     Dave Ertman <david.m.ertman@...el.com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "parav@...lanox.com" <parav@...lanox.com>,
        "tiwai@...e.de" <tiwai@...e.de>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "ranjani.sridharan@...ux.intel.com" 
        <ranjani.sridharan@...ux.intel.com>,
        "fred.oh@...ux.intel.com" <fred.oh@...ux.intel.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "dledford@...hat.com" <dledford@...hat.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        Jason Gunthorpe <jgg@...dia.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        "shiraz.saleem@...el.com" <shiraz.saleem@...el.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kiran.patil@...el.com" <kiran.patil@...el.com>
Subject: RE: [PATCH v2 1/6] Add ancillary bus support


> From: Leon Romanovsky <leon@...nel.org>
> Sent: Tuesday, October 6, 2020 10:33 PM
> 
> On Tue, Oct 06, 2020 at 10:18:07AM -0500, Pierre-Louis Bossart wrote:
> > Thanks for the review Leon.
> >
> > > > Add support for the Ancillary Bus, ancillary_device and ancillary_driver.
> > > > It enables drivers to create an ancillary_device and bind an
> > > > ancillary_driver to it.
> > >
> > > I was under impression that this name is going to be changed.
> >
> > It's part of the opens stated in the cover letter.
> 
> ok, so what are the variants?
> system bus (sysbus), sbsystem bus (subbus), crossbus ?
Since the intended use of this bus is to 
(a) create sub devices that represent 'functional separation' and 
(b) second use case for subfunctions from a pci device,

I proposed below names in v1 of this patchset.

(a) subdev_bus
(b) subfunction_bus