ethernet/litex/litex_liteeth.c

42 	struct net_device *netdev;
57 static int liteeth_rx(struct net_device *netdev)
59 	struct liteeth *priv = netdev_priv(netdev);
71 	skb = netdev_alloc_skb_ip_align(netdev, len);
73 		netdev_err(netdev, "couldn't get memory\n");
79 	skb->protocol = eth_type_trans(skb, netdev);
81 	dev_sw_netstats_rx_add(netdev, len);
86 	netdev->stats.rx_dropped++;
87 	netdev->stats.rx_errors++;
94 	struct net_device *netdev = dev_id;
95 	struct liteeth *priv = netdev_priv(netdev);
100 		if (netif_queue_stopped(netdev))
101 			netif_wake_queue(netdev);
107 		liteeth_rx(netdev);
114 static int liteeth_open(struct net_device *netdev)
116 	struct liteeth *priv = netdev_priv(netdev);
123 	err = request_irq(netdev->irq, liteeth_interrupt, 0, netdev->name, netdev);
125 		netdev_err(netdev, "failed to request irq %d\n", netdev->irq);
133 	netif_carrier_on(netdev);
134 	netif_start_queue(netdev);
139 static int liteeth_stop(struct net_device *netdev)
141 	struct liteeth *priv = netdev_priv(netdev);
143 	netif_stop_queue(netdev);
144 	netif_carrier_off(netdev);
149 	free_irq(netdev->irq, netdev);
155 				      struct net_device *netdev)
157 	struct liteeth *priv = netdev_priv(netdev);
162 			netdev_err(netdev, "LITEETH_READER_READY not ready\n");
164 		netif_stop_queue(netdev);
172 			netdev_err(netdev, "tx packet too big\n");
175 		netdev->stats.tx_dropped++;
176 		netdev->stats.tx_errors++;
187 	dev_sw_netstats_tx_add(netdev, 1, skb->len);
196 liteeth_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
198 	netdev_stats_to_stats64(stats, &netdev->stats);
199 	dev_fetch_sw_netstats(stats, netdev->tstats);
235 	struct net_device *netdev;
240 	netdev = devm_alloc_etherdev(&pdev->dev, sizeof(*priv));
241 	if (!netdev)
244 	SET_NETDEV_DEV(netdev, &pdev->dev);
245 	platform_set_drvdata(pdev, netdev);
247 	priv = netdev_priv(netdev);
248 	priv->netdev = netdev;
251 	netdev->tstats = devm_netdev_alloc_pcpu_stats(&pdev->dev,
253 	if (!netdev->tstats)
259 	netdev->irq = irq;
279 	err = of_get_ethdev_address(pdev->dev.of_node, netdev);
281 		eth_hw_addr_random(netdev);
283 	netdev->netdev_ops = &liteeth_netdev_ops;
285 	err = register_netdev(netdev);
287 		dev_err(&pdev->dev, "Failed to register netdev %d\n", err);
291 	netdev_info(netdev, "irq %d slots: tx %d rx %d size %d\n",
292 		    netdev->irq, priv->num_tx_slots, priv->num_rx_slots, priv->slot_size);
299 	struct net_device *netdev = platform_get_drvdata(pdev);
301 	unregister_netdev(netdev);