From: Ralph Campbell <ralph.campbell@qlogic.com>
Date: Tue, 24 Jul 2007 20:55:39 +0000 (-0700)
Subject: IB/ipath: Performance optimization for CPU differences
X-Git-Tag: v2.6.24-rc1~1453^2~24
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=210d6ca3db058cd1d6e6fd235ee3e25d6ac221cd;p=pandora-kernel.git

IB/ipath: Performance optimization for CPU differences

Different processors have different ordering restrictions for write
combining.  By taking advantage of this, we can eliminate some write
barriers when writing to the send buffers.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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