From: Michael S. Tsirkin <mst@mellanox.co.il>
Date: Sat, 10 Feb 2007 21:17:26 +0000 (+0200)
Subject: IB/mthca: Give reserved MTTs a separate cache line
X-Git-Tag: v2.6.21-rc1~273^2^2~3
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d1f19cfce7687b557cebdc41bf8a5eeba8a9882;p=pandora-kernel.git

IB/mthca: Give reserved MTTs a separate cache line

MTTs are allocated in non-cache-coherent memory, so we must give
reserved MTTs their own cache line, to prevent both device and
CPU from writing into the same cache line at the same time.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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