From d309a46e42542223946d3a9e4e239fdc945cb53e Mon Sep 17 00:00:00 2001
From: Matt Carlson <mcarlson@broadcom.com>
Date: Thu, 30 Sep 2010 10:34:31 +0000
Subject: [PATCH] tg3: 5719: Prevent tx data corruption

This patch enables a bit that prevents read DMA overflows and adjusts
the txmbuf margin from the hardware default.  The combination of these
modifications prevents a tx data corruption issue we were seeing on the
5719.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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