[openib-general] please pull for 2.6.21: fix + add IB multicast support

[Roland Dreier]

I merged the "increment port number" and "remove redundant '_wq'"
patches from git.openfabrics.org/~shefty/scm/rdma-dev.git for-roland

I plan to review to multicast stuff next week and I hope to merge it
for 2.6.21.  Or, have you or anyone else at Voltaire read over the
code in addition to using it?  Do you see anything that should be
cleaned up?

 - R.