tree f771389b55090767e8aecdc36f3e80019b3b60bf
parent edf15c17420fed108046da50b3d3ae53dfa0e0ae
author Jesse Brandeburg <jesse.brandeburg@intel.com> 1273011963 +0000
committer David S. Miller <davem@davemloft.net> 1273119332 -0700

e1000/e1000e: implement a simple interrupt moderation

Back before e1000-7.3.20, the e1000 driver had a simple algorithm that
managed interrupt moderation.  The driver was updated in 7.3.20 to
have the new "adaptive" interrupt moderation but we have customer
requests to redeploy the old way as an option.  This patch adds the
old functionality back.  The new functionality can be enabled via
module parameter or at runtime via ethtool.
Module parameter: (InterruptThrottleRate=4) to use this new
moderation method.
Ethtool method: ethtool -C ethX rx-usecs 4

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>