126 	priv->tx_head = 0;  in moxart_mac_setup_desc_ring()
272 	unsigned tx_head = priv->tx_head;  in moxart_tx_finished()  local
275 	while (tx_tail != tx_head) {  in moxart_tx_finished()
315 	unsigned int tx_head = priv->tx_head;  in moxart_mac_start_xmit()  local
319 	desc = priv->tx_desc_base + (TX_REG_DESC_SIZE * tx_head);  in moxart_mac_start_xmit()
330 	priv->tx_mapping[tx_head] = dma_map_single(&ndev->dev, skb->data,  in moxart_mac_start_xmit()
332 	if (dma_mapping_error(&ndev->dev, priv->tx_mapping[tx_head])) {  in moxart_mac_start_xmit()
337 	priv->tx_len[tx_head] = len;  in moxart_mac_start_xmit()
338 	priv->tx_skb[tx_head] = skb;  in moxart_mac_start_xmit()
340 	writel(priv->tx_mapping[tx_head],  in moxart_mac_start_xmit()
351 	dma_sync_single_for_device(&ndev->dev, priv->tx_mapping[tx_head],  in moxart_mac_start_xmit()
355 	if (tx_head == TX_DESC_NUM_MASK)  in moxart_mac_start_xmit()
363 	priv->tx_head = TX_NEXT(tx_head);  in moxart_mac_start_xmit()