Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Mon, 12 Aug 2019 16:03:11 +0200
From:   Andrew Lunn <andrew@lunn.ch>
To:     Ioana Ciornei <ioana.ciornei@nxp.com>
Cc:     "davem@davemloft.net" <davem@davemloft.net>,
        "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "f.fainelli@gmail.com" <f.fainelli@gmail.com>,
        Ioana Ciocoi Radulescu <ruxandra.radulescu@nxp.com>
Subject: Re: [PATCH] dpaa2-ethsw: move the DPAA2 Ethernet Switch driver out
 of staging
Message-ID: <20190812140311.GM14290@lunn.ch>
References: <1565366213-20063-1-git-send-email-ioana.ciornei@nxp.com>
 <20190809190459.GW27917@lunn.ch>
 <VI1PR0402MB2800FF2E5C4DE24B25E7D843E0D10@VI1PR0402MB2800.eurprd04.prod.outlook.com>
 <20190811032235.GK30120@lunn.ch>
 <VI1PR0402MB2800292DCA9CC91085E5033FE0D00@VI1PR0402MB2800.eurprd04.prod.outlook.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <VI1PR0402MB2800292DCA9CC91085E5033FE0D00@VI1PR0402MB2800.eurprd04.prod.outlook.com>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

> >> Yes, we only support a single bridge.
> > 
> > That is a pretty severe restriction for a device of this class. Some
> > of the very simple switches DSA support have a similar restriction,
> > but in general, most do support multiple bridges.
> > 
> 
> Let me make a distinction here: we do no support multiple bridges on the 
> same DPSW object but we do support multiple DPSW objects, each with its 
> bridge.
> 
> 
> > Are there any plans to fix this?
> > 
> 
> We had some internal discussions on this, the hardware could support 
> this kind of further partitioning the switch object but, at the moment, 
> the firmware doesn't.

I assume the firmware allows you to create switch objects on the fly?

I think this was discussed a long time ago, but why not create a new
switch object when you need it? That seems like the whole point of
this dynamic hardware design of dpaa2.

     Andrew