mtk_dma_ring_free
mtk_dma_ring_free(eth, ring->dma_size * soc->tx.desc_size,
mtk_dma_ring_free(eth, ring->dma_size * eth->soc->rx.desc_size,
mtk_dma_ring_free(eth, soc->tx.fq_dma_size * soc->tx.desc_size,