XGENE_DMA_RING_OWNER_DMA
if (ring->owner == XGENE_DMA_RING_OWNER_DMA) {
tx_ring->owner = XGENE_DMA_RING_OWNER_DMA;
desc->m0 |= cpu_to_le64((u64)XGENE_DMA_RING_OWNER_DMA <<