netdev - Re: [PATCH] e1000e: Add support for BM PHYs on ICH9

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Date:	Tue, 06 May 2008 12:18:48 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Auke Kok <auke-jan.h.kok@...el.com>
CC:	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net
Subject: Re: [PATCH] e1000e: Add support for BM PHYs on ICH9

Auke Kok wrote:
> From: Bruce Allan <bruce.w.allan@...el.com>
> 
> This patch adds support for the BM PHY, a new PHY model being used
> on ICH9-based implementations.
> 
> This new PHY exposes issues in the ICH9 silicon when receiving
> jumbo frames large enough to use more than a certain part of the
> Rx FIFO, and this unfortunately breaks packet split jumbo receives.
> For this reason we re-introduce (for affected adapters only) the
> jumbo single-skb receive routine back so that people who do
> wish to use jumbo frames on these ich9 platforms can do so.
> Part of this problem has to do with CPU sleep states and to make
> sure that all the wake up timings are correctly we force them
> with the recently merged pm_qos infrastructure written by Mark
> Gross. (See http://lkml.org/lkml/2007/10/4/400).
> 
> To make code read a bit easier we introduce a _IS_ICH flag so
> that we don't need to do mac type checks over the code.
> 
> Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
> Signed-off-by: Auke Kok <auke-jan.h.kok@...el.com>

applied


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