From: Bruce Allan <bruce.w.allan@intel.com>
Date: Thu, 29 Oct 2009 13:46:05 +0000 (+0000)
Subject: e1000e: rework disable K1 at 1000Mbps for 82577/82578
X-Git-Tag: v2.6.32-rc6~9^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d5846b9216665d0ae743bf351d0b8fa90c40523;p=pandora-kernel.git

e1000e: rework disable K1 at 1000Mbps for 82577/82578

This patch reworks a previous workaround (commit 7d3cabbcc) 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.  The original version of this
workaround was found to be incomplete.

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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