netdev - Re: [PATCH v5 net-next 00/12] net: ethernet: ti: introduce new cpsw switchdev based driver

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Message-ID: <dc621a9d-eb92-5df9-81d7-ad2b037ac3c7@ti.com>
Date:   Sat, 9 Nov 2019 17:15:37 +0200
From:   Grygorii Strashko <grygorii.strashko@...com>
To:     Tony Lindgren <tony@...mide.com>, Sekhar Nori <nsekhar@...com>
CC:     <netdev@...r.kernel.org>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        "David S . Miller" <davem@...emloft.net>,
        Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
        Jiri Pirko <jiri@...nulli.us>,
        Florian Fainelli <f.fainelli@...il.com>,
        <linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        Murali Karicheri <m-karicheri2@...com>,
        Ivan Vecera <ivecera@...hat.com>,
        Rob Herring <robh+dt@...nel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v5 net-next 00/12] net: ethernet: ti: introduce new cpsw
 switchdev based driver

Hi Tony,

On 24/10/2019 19:05, Tony Lindgren wrote:
> Hi,
> 
> * Grygorii Strashko <grygorii.strashko@...com> [191024 10:10]:
>> This the RFC v5 which introduces new CPSW switchdev based driver which is
>> operating in dual-emac mode by default, thus working as 2 individual
>> network interfaces. The Switch mode can be enabled by configuring devlink driver
>> parameter "switch_mode" to 1/true:
>> 	devlink dev param set platform/48484000.ethernet_switch \
>> 	name switch_mode value 1 cmode runtime
> 
> Just wondering about the migration plan.. Is this a replacement
> driver or used in addition to the old driver?
> 

Sry, I've missed you mail.

As it's pretty big change the idea is to keep both drivers at least for sometime.
Step 1: add new driver and enable it on one platform. Do announcement.
Step 2: switch all one-port and dual mac drivers to the new driver
Step 3: switch all other platform to cpsw switchdev and deprecate old driver.

-- 
Best regards,
grygorii