From: Nick Nunley <nicholasx.d.nunley@intel.com>
Date: Wed, 17 Feb 2010 01:05:56 +0000 (+0000)
Subject: igb: change descriptor control thresholds
X-Git-Tag: v2.6.34-rc1~233^2~218
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58fd62f525e1182fbb2f7566aecb4545720d9aad;p=pandora-kernel.git

igb: change descriptor control thresholds

This change simplifies the code by setting RX_PTHRESH to 8 for
all devices, as it was unlikely that there was any advantage to
set it at 16 for earlier cards. Additionally TX_WTHRESH is
set to 1 for the 82576 NIC to improve performance by enabling
a minimal amount of write combining when writing back descriptors.

Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@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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