linux-kernel - Re: [PATCH net-next v9 0/8] Add Auxiliary driver support

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Date:   Wed, 1 Feb 2023 08:56:03 -0800
From:   Ajit Khaparde <ajit.khaparde@...adcom.com>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Jakub Kicinski <kuba@...nel.org>, andrew.gospodarek@...adcom.com,
        davem@...emloft.net, edumazet@...gle.com, jgg@...pe.ca,
        linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
        michael.chan@...adcom.com, netdev@...r.kernel.org,
        pabeni@...hat.com, selvin.xavier@...adcom.com,
        gregkh@...uxfoundation.org
Subject: Re: [PATCH net-next v9 0/8] Add Auxiliary driver support

On Wed, Feb 1, 2023 at 12:38 AM Leon Romanovsky <leon@...nel.org> wrote:
>
> On Tue, Jan 31, 2023 at 09:12:28PM -0800, Jakub Kicinski wrote:
> > On Mon, 30 Jan 2023 21:25:49 -0800 Ajit Khaparde wrote:
> > > Add auxiliary device driver for Broadcom devices.
> > > The bnxt_en driver will register and initialize an aux device
> > > if RDMA is enabled in the underlying device.
> > > The bnxt_re driver will then probe and initialize the
> > > RoCE interfaces with the infiniband stack.
> > >
> > > We got rid of the bnxt_en_ops which the bnxt_re driver used to
> > > communicate with bnxt_en.
> > > Similarly  We have tried to clean up most of the bnxt_ulp_ops.
> > > In most of the cases we used the functions and entry points provided
> > > by the auxiliary bus driver framework.
> > > And now these are the minimal functions needed to support the functionality.
> > >
> > > We will try to work on getting rid of the remaining if we find any
> > > other viable option in future.
> >
> > Better :)
> >
> > Leon, looks good to you as well?
>
> Good enough, we beat this horse to death already.
>
> BTW, it still has useless NULL assignments and variable initializations.
I can spin another patchset to remove these.
Or I can include it in the next patchset which is in the pipeline.
Please let me know.

Thanks

>
> +       aux_priv->edev->en_ops = NULL;
> +       kfree(aux_priv->edev);
>
> Thanks
>
> >
> > Note to DaveM/self - this needs to be pulled rather than applied:
> >
> > > The following are changes since commit 90e8ca0abb05ada6c1e2710eaa21688dafca26f2
> > >  Merge branch 'devlink-next'
> > > and are available in the git repository at:
> > >  https://github.com/ajitkhaparde1/net-next/tree/aux-bus-v9

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