From: Chris Leech <christopher.leech@intel.com>
Date: Thu, 8 Mar 2007 17:57:36 +0000 (-0800)
Subject: I/OAT: Only offload copies for TCP when there will be a context switch
X-Git-Tag: v2.6.23-rc1~1077^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2b1244a43be97f504494b557a7f7a65fe0d00dba;p=pandora-kernel.git

I/OAT: Only offload copies for TCP when there will be a context switch
The performance wins come with having the DMA copy engine doing the copies
in parallel with the context switch.  If there is enough data ready on the
socket at recv time just use a regular copy.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
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