staging/rdma/hfi1: use one-shot LCB write
Use the one-shot LCB write implemented in the 8051 firmware. This speeds up 8051 LCB writes by 2x. Use old method for older firmwares. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jubin John <jubin.john@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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