pvrdma_rq_wqe_hdr
qp->rq.wqe_size = roundup_pow_of_two(sizeof(struct pvrdma_rq_wqe_hdr) +
struct pvrdma_rq_wqe_hdr *wqe_hdr;
wqe_hdr = (struct pvrdma_rq_wqe_hdr *)get_rq_wqe(qp, tail);