netdev - Re: [PATCH 5/6] net: calxedaxgmac: rework transmit ring handling

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Date:	Fri, 12 Oct 2012 17:28:52 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Rob Herring <robherring2@...il.com>
CC:	<linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
	<jonathan@...masters.org>, <eric.dumazet@...il.com>,
	Mark Langsdorf <mark.langsdorf@...xeda.com>,
	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH 5/6] net: calxedaxgmac: rework transmit ring handling

On Fri, 2012-10-12 at 10:15 -0500, Rob Herring wrote:
> From: Rob Herring <rob.herring@...xeda.com>
> 
> Only generate tx interrupts on every ring size / 4 descriptors. Move the
> netif_stop_queue call to the end of the xmit function rather than
> checking at the beginning.
[...]

The hardware should also interrupt if the TX ring becomes empty; does it
do that?

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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