netdev - Re: [RFC] netpoll: Is it ok to share a single napi from several devs ?

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Message-ID: <20100830131246.25b16e8e@nehalam>
Date:	Mon, 30 Aug 2010 13:12:46 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Jarek Poplawski <jarkao2@...il.com>,
	David Miller <davem@...emloft.net>,
	herbert@...dor.apana.org.au, netdev@...r.kernel.org
Subject: Re: [RFC] netpoll: Is it ok to share a single napi from several
 devs ?

On Mon, 30 Aug 2010 21:59:16 +0200
Eric Dumazet <eric.dumazet@...il.com> wrote:

> So everybody jumped on GRO, while my concern was more the napi->dev
> thing.
> 
> I pointed to gro because the commit was about gro, but gro was fine
> IMHO.
> 
> Are we sure netpoll is ok ?

Netpoll is dependent on napi->netdev but does not cause problems.
The sky2 driver doesn't expose netpoll on second port.
The second port has different net_device_ops without netpoll.


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