IRDMA_SQ_RSVD
((IRDMA_QP_SW_MAX_WQ_QUANTA - IRDMA_SQ_RSVD) / (max_quanta_per_wr))
irdma_round_up_wq(((u64)sq_size << shift) + IRDMA_SQ_RSVD);
iwqp->max_send_wr = (ukinfo->sq_depth - IRDMA_SQ_RSVD) >> ukinfo->sq_shift;
iwqp->max_send_wr = (ukinfo->sq_depth - IRDMA_SQ_RSVD) >> ukinfo->sq_shift;