netdev - Re: [PATCH] tg3: 5701 DMA corruption fix

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Message-Id: <20080419.181302.157459642.davem@davemloft.net>
Date:	Sat, 19 Apr 2008 18:13:02 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mcarlson@...adcom.com
Cc:	netdev@...r.kernel.org, mchan@...adcom.com, andy@...yhouse.net,
	tonyb@...ernetics.com
Subject: Re: [PATCH] tg3: 5701 DMA corruption fix

From: "Matt Carlson" <mcarlson@...adcom.com>
Date: Fri, 18 Apr 2008 17:59:52 -0700

> Herbert Xu's commit fb93134dfc2a6e6fbedc7c270a31da03fce88db9, entitled
> "[TCP]: Fix size calculation in sk_stream_alloc_pskb", has triggered a
> bug in the 5701 where the 5701 DMA engine will corrupt outgoing
> packets.  This problem only happens when the starting address of the
> packet matches a certain range of offsets and only when the 5701 is
> placed downstream of a particular Intel bridge.
> 
> This patch detects the problematic bridge and if present, readjusts the
> starting address of the packet data to a dword aligned boundary.
> 
> Signed-off-by: Matt Carlson <mcarlson@...adcom.com>
> Signed-off-by: Michael Chan <mchan@...adcom.com>

Applied, thanks everyone.
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