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

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Message-ID: <CAPcyv4jUbNaR6zoHdSNf1Rsq7MUp2RvdUtDGrmi5Be6hK_oybg@mail.gmail.com>
Date:   Thu, 8 Oct 2020 00:38:00 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     "Ertman, David M" <david.m.ertman@...el.com>,
        Parav Pandit <parav@...dia.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.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>,
        "Saleem, Shiraz" <shiraz.saleem@...el.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "Patil, Kiran" <kiran.patil@...el.com>
Subject: Re: [PATCH v2 1/6] Add ancillary bus support

On Thu, Oct 8, 2020 at 12:01 AM Leon Romanovsky <leon@...nel.org> wrote:
[..]
> All stated above is my opinion, it can be different from yours.

Yes, but we need to converge to move this forward. Jason was involved
in the current organization for registration, Greg was angling for
this to be core functionality. I have use cases outside of RDMA and
netdev. Parav was ok with the current organization. The SOF folks
already have a proposed incorporation of it. The argument I am hearing
is that "this registration api seems hard for driver writers" when we
have several driver writers who have already taken a look and can make
it work. If you want to follow on with a simpler wrappers for your use
case, great, but I do not yet see anyone concurring with your opinion
that the current organization is irretrievably broken or too obscure
to use.