From: Dave Olson <dave.olson@qlogic.com>
Date: Thu, 17 Apr 2008 04:01:12 +0000 (-0700)
Subject: IB/ipath: Enable 4KB MTU
X-Git-Tag: v2.6.26-rc1~1156^2~72
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=826d801009fb3c82832f2d92149446cce354bf61;p=pandora-kernel.git

IB/ipath: Enable 4KB MTU

Enable use of 4KB MTU.  Since the driver uses more pinned memory for
receive buffers when the 4KB MTU is enabled, whether or not the fabric
supports that MTU, add a "mtu4096" module parameter that can be used to
limit the MTU to 2KB when it is known that 4KB MTUs can't be used
anyway.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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