From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Subject: Re: SRIOV switchdev mode BoF minutes
Date: Mon, 16 Apr 2018 08:39:36 -0400
Message-ID: <20180416123936.GH33938@C02RW35GFVH8.dhcp.broadcom.net>
References: <CAJ3xEMgnWxi0Uo5j3bDg4eW2vjeeriT7kuq4fzZmLT0bNrMCkQ@mail.gmail.com>
 <64cca3cd-5592-8210-54c4-ed28c284ae5d@intel.com>
 <CAJ3xEMiP2my8gP+VsvGAFv9Zj=qk2iTr+BYbd=VEtRFwrG_2JA@mail.gmail.com>
 <d1e4cfb4-513e-14d4-9007-25d1b02e8dcd@intel.com>
 <CAJ3xEMj824Y-Erod3e27VO0GmntyWE8u1PQ5-Ff-iZrCn=2X9A@mail.gmail.com>
 <CAJ3xEMjqj5ENO8NRbcYFFCcS4NGwrNbYo8uydHEYMyXHjCBqhw@mail.gmail.com>
 <bec866ff-2898-72b3-247d-f64189ef6d0f@intel.com>
 <CAJ3xEMiDundB9p0CvnQ33mLm=7OvG4Yvd5ASH9uR+TkCd_uJhg@mail.gmail.com>
 <e93e22c3-6c2e-00c9-10c6-163c4aacff14@intel.com>
 <CAJ3xEMhWvNJ4fv+UK2YjcfL44txpW+4KWViWSejO9s+2yTnMOQ@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: "Samudrala, Sridhar" <sridhar.samudrala@intel.com>,
        David Miller <davem@davemloft.net>,
        Anjali Singhai Jain <anjali.singhai@intel.com>,
        Michael Chan <michael.chan@broadcom.com>,
        Simon Horman <simon.horman@netronome.com>,
        Jakub Kicinski <jakub.kicinski@netronome.com>,
        John Fastabend <john.fastabend@gmail.com>,
        Saeed Mahameed <saeedm@mellanox.com>,
        Jiri Pirko <jiri@mellanox.com>,
        Rony Efraim <ronye@mellanox.com>,
        Linux Netdev List <netdev@vger.kernel.org>
To: Or Gerlitz <gerlitz.or@gmail.com>
Return-path: <netdev-owner@vger.kernel.org>
Received: from mail-qt0-f175.google.com ([209.85.216.175]:35072 "EHLO
        mail-qt0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1754727AbeDPMjk (ORCPT
        <rfc822;netdev@vger.kernel.org>); Mon, 16 Apr 2018 08:39:40 -0400
Received: by mail-qt0-f175.google.com with SMTP id s2so15053296qti.2
        for <netdev@vger.kernel.org>; Mon, 16 Apr 2018 05:39:40 -0700 (PDT)
Content-Disposition: inline
In-Reply-To: <CAJ3xEMhWvNJ4fv+UK2YjcfL44txpW+4KWViWSejO9s+2yTnMOQ@mail.gmail.com>
Sender: netdev-owner@vger.kernel.org
List-ID: <netdev.vger.kernel.org>

On Sun, Apr 15, 2018 at 09:01:16AM +0300, Or Gerlitz wrote:
> On Sat, Apr 14, 2018 at 2:03 AM, Samudrala, Sridhar
> <sridhar.samudrala@intel.com> wrote:
> 
> > I meant between PFs on 2 compute nodes.
> 
> If the PF serves as uplink rep, it functions as  a switch port -- applications
> don't run on switch ports. One way to get apps to run on the host in switchdev
> mode is probe one of the VFs there.
> 
> 
> [...]
> 
> > By smartnic env, i guess you are referring to OVS control plane also running
> > on the NIC.
> 
> correct
> 

Not just OvS, but other applications running on the SmartNIC could use tc for
programming hardware can benefit from a design like this.

> > I will look forward to your patches.
> 
> FWIW, note that my patches don't bring any newz for you.. I am aligning
> mlx5 with what was agreed on netdev, e.g nfp does it (uplink rep and
> such) already.

Probably not major news from us either since this was discussed at the last
NetConf, but we are planning to have this option for SmartNICs or PCI-multihost
NICs, too.