TG3_RX_JMB_RING_BYTES
memset(tpr->rx_jmb, 0, TG3_RX_JMB_RING_BYTES(tp));
dma_free_coherent(&tp->pdev->dev, TG3_RX_JMB_RING_BYTES(tp),
TG3_RX_JMB_RING_BYTES(tp),