uverbs_request_next_ptr
wqes = uverbs_request_next_ptr(&iter, size_mul(cmd.wqe_size,
sgls = uverbs_request_next_ptr(&iter,
wqes = uverbs_request_next_ptr(iter, size_mul(wqe_size, wr_count));
sgls = uverbs_request_next_ptr(iter, size_mul(sge_count,