linux-kernel - Re: [PATCH] net/mlx5: Add sysfs entry for vhca to /sys/class/infiniband/mlx5

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Date:   Wed, 18 May 2022 07:49:53 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Mark Bloch <mbloch@...dia.com>
Cc:     Rohit Sajan Kumar <rohit.sajan.kumar@...cle.com>,
        "matanb@...lanox.com" <matanb@...lanox.com>,
        "dledford@...hat.com" <dledford@...hat.com>,
        "sean.hefty@...el.com" <sean.hefty@...el.com>,
        "hal.rosenstock@...il.com" <hal.rosenstock@...il.com>,
        Manjunath Patil <manjunath.b.patil@...cle.com>,
        Rama Nichanamatlu <rama.nichanamatlu@...cle.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net/mlx5: Add sysfs entry for vhca to
 /sys/class/infiniband/mlx5

On Sun, May 15, 2022 at 10:36:07AM +0300, Mark Bloch wrote:
> 
> 
> On 5/14/2022 08:09, Leon Romanovsky wrote:
> > On Fri, May 13, 2022 at 05:46:16PM +0000, Rohit Sajan Kumar wrote:
> >> Hey,
> >>
> >> Sending this as a gentle reminder to review the patch sent earlier this week which can be found in this email chain.
> > 
> > Patches that sent in HTML format, to wrong addresses and not visible
> > in patchworks/ML, without target net-next/rdma-next/e.t.c., with wrong
> > title are generally ignored.
> > 
> > Why vhca_id that returned from MLX5_IB_METHOD_QUERY_PORT is not enough?
> 
> The driver returns that only when in switchdev mode.
> I don't see why that can't be changed but that's the state today.

My guess is that it is not needed outside of switchdev mode. This is why
I would like to know why current solution is not enough.

Thanks