From: Bruce Allan <bruce.w.allan@intel.com>
Date: Wed, 1 Jul 2009 13:29:08 +0000 (+0000)
Subject: e1000e: disable K1 at 1000Mbps for 82577/82578
X-Git-Tag: v2.6.31-rc3~70^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7d3cabbcc86f7f69c47cb20c23ee84350ae6cfbb;p=pandora-kernel.git

e1000e: disable K1 at 1000Mbps for 82577/82578

This workaround is required for an issue in hardware where noise on the
interconnect between the MAC and PHY could be generated by a lower power
mode (K1) at 1000Mbps resulting in bad packets.  Disable K1 while at 1000
Mbps but keep it enabled for 10/100Mbps and when the cable is disconnected.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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