When UPIU packet is sent, (BIT0 << Slot) should be set according to context. But BIT0 is used without Slot when UfsWaitMemSet () is invoked. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Reviewed-by: Feng Tian <feng.tian@intel.com>