DPAA2_ATOMIC_READ
const int alloc = DPAA2_ATOMIC_READ(&sc->buf_num);
const int buf_num = DPAA2_ATOMIC_READ(&sc->buf_num);
uint32_t buf_num = DPAA2_ATOMIC_READ(&sc->buf_num);
uint32_t buf_free = DPAA2_ATOMIC_READ(&sc->buf_free);