223 static int xgene_enet_setup_tx_desc(struct xgene_enet_desc_ring *tx_ring,  in xgene_enet_setup_tx_desc()  argument
226 	struct device *dev = ndev_to_dev(tx_ring->ndev);  in xgene_enet_setup_tx_desc()
229 	u16 tail = tx_ring->tail;  in xgene_enet_setup_tx_desc()
232 	raw_desc = &tx_ring->raw_desc[tail];  in xgene_enet_setup_tx_desc()
237 		netdev_err(tx_ring->ndev, "DMA mapping error\n");  in xgene_enet_setup_tx_desc()
247 	raw_desc->m3 = cpu_to_le64(SET_VAL(HENQNUM, tx_ring->dst_ring_num) |  in xgene_enet_setup_tx_desc()
249 	tx_ring->cp_ring->cp_skb[tail] = skb;  in xgene_enet_setup_tx_desc()
258 	struct xgene_enet_desc_ring *tx_ring = pdata->tx_ring;  in xgene_enet_start_xmit()  local
259 	struct xgene_enet_desc_ring *cp_ring = tx_ring->cp_ring;  in xgene_enet_start_xmit()
262 	tx_level = xgene_enet_ring_len(tx_ring);  in xgene_enet_start_xmit()
270 	if (xgene_enet_setup_tx_desc(tx_ring, skb)) {  in xgene_enet_start_xmit()
275 	iowrite32(1, tx_ring->cmd);  in xgene_enet_start_xmit()
277 	tx_ring->tail = (tx_ring->tail + 1) & (tx_ring->slots - 1);  in xgene_enet_start_xmit()
509 	if (pdata->tx_ring) {  in xgene_enet_delete_desc_rings()
510 		xgene_enet_delete_ring(pdata->tx_ring);  in xgene_enet_delete_desc_rings()
511 		pdata->tx_ring = NULL;  in xgene_enet_delete_desc_rings()
573 	ring = pdata->tx_ring;  in xgene_enet_free_desc_rings()
640 	struct xgene_enet_desc_ring *rx_ring, *tx_ring, *cp_ring;  in xgene_enet_create_desc_rings()  local
681 	tx_ring = xgene_enet_create_desc_ring(ndev, ring_num++,  in xgene_enet_create_desc_rings()
683 	if (!tx_ring) {  in xgene_enet_create_desc_rings()
687 	pdata->tx_ring = tx_ring;  in xgene_enet_create_desc_rings()
690 	cp_ring->cp_skb = devm_kcalloc(dev, tx_ring->slots,  in xgene_enet_create_desc_rings()
696 	pdata->tx_ring->cp_ring = cp_ring;  in xgene_enet_create_desc_rings()
697 	pdata->tx_ring->dst_ring_num = xgene_enet_dst_ring_num(cp_ring);  in xgene_enet_create_desc_rings()
699 	pdata->tx_qcnt_hi = pdata->tx_ring->slots / 2;  in xgene_enet_create_desc_rings()