Function rdmaxcel_qp_post_op 

pub unsafe extern "C" fn rdmaxcel_qp_post_op(
    qp: *mut rdmaxcel_qp_t,
    local_addr: *mut c_void,
    lkey: u32,
    length: usize,
    remote_addr: *mut c_void,
    rkey: u32,
    wr_id: u64,
    signaled: c_int,
    op_type: c_int,
) -> c_int

EFA post operation with ibv_post_recv fallback op_type: 0 = write, 1 = read, 2 = recv, 3 = write_with_imm