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committer Roland Dreier <rolandd@cisco.com> 1143839660 -0800

IB/ipath: infiniband RC protocol support

This is an implementation of the Infiniband RC ("reliable connection")
protocol.

Signed-off-by: Bryan O'Sullivan <bos@pathscale.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>