75 	struct net_device *ndev;  member
85 	struct net_device *ndev = data;  in ntb_netdev_event_handler()  local
86 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_event_handler()
88 	netdev_dbg(ndev, "Event %x, Link %x\n", link_is_up,  in ntb_netdev_event_handler()
93 			netif_carrier_on(ndev);  in ntb_netdev_event_handler()
95 		netif_carrier_off(ndev);  in ntb_netdev_event_handler()
102 	struct net_device *ndev = qp_data;  in ntb_netdev_rx_handler()  local
110 	netdev_dbg(ndev, "%s: %d byte payload received\n", __func__, len);  in ntb_netdev_rx_handler()
113 		ndev->stats.rx_errors++;  in ntb_netdev_rx_handler()
114 		ndev->stats.rx_length_errors++;  in ntb_netdev_rx_handler()
119 	skb->protocol = eth_type_trans(skb, ndev);  in ntb_netdev_rx_handler()
123 		ndev->stats.rx_errors++;  in ntb_netdev_rx_handler()
124 		ndev->stats.rx_dropped++;  in ntb_netdev_rx_handler()
126 		ndev->stats.rx_packets++;  in ntb_netdev_rx_handler()
127 		ndev->stats.rx_bytes += len;  in ntb_netdev_rx_handler()
130 	skb = netdev_alloc_skb(ndev, ndev->mtu + ETH_HLEN);  in ntb_netdev_rx_handler()
132 		ndev->stats.rx_errors++;  in ntb_netdev_rx_handler()
133 		ndev->stats.rx_frame_errors++;  in ntb_netdev_rx_handler()
138 	rc = ntb_transport_rx_enqueue(qp, skb, skb->data, ndev->mtu + ETH_HLEN);  in ntb_netdev_rx_handler()
141 		ndev->stats.rx_errors++;  in ntb_netdev_rx_handler()
142 		ndev->stats.rx_fifo_errors++;  in ntb_netdev_rx_handler()
166 static int ntb_netdev_maybe_stop_tx(struct net_device *ndev,  in ntb_netdev_maybe_stop_tx()  argument
169 	if (netif_queue_stopped(ndev) ||  in ntb_netdev_maybe_stop_tx()
173 	return __ntb_netdev_maybe_stop_tx(ndev, qp, size);  in ntb_netdev_maybe_stop_tx()
179 	struct net_device *ndev = qp_data;  in ntb_netdev_tx_handler()  local
181 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_tx_handler()
184 	if (!skb || !ndev)  in ntb_netdev_tx_handler()
188 		ndev->stats.tx_packets++;  in ntb_netdev_tx_handler()
189 		ndev->stats.tx_bytes += skb->len;  in ntb_netdev_tx_handler()
191 		ndev->stats.tx_errors++;  in ntb_netdev_tx_handler()
192 		ndev->stats.tx_aborted_errors++;  in ntb_netdev_tx_handler()
202 		if (netif_queue_stopped(ndev))  in ntb_netdev_tx_handler()
203 			netif_wake_queue(ndev);  in ntb_netdev_tx_handler()
208 					 struct net_device *ndev)  in ntb_netdev_start_xmit()  argument
210 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_start_xmit()
213 	ntb_netdev_maybe_stop_tx(ndev, dev->qp, tx_stop);  in ntb_netdev_start_xmit()
220 	ntb_netdev_maybe_stop_tx(ndev, dev->qp, tx_stop);  in ntb_netdev_start_xmit()
225 	ndev->stats.tx_dropped++;  in ntb_netdev_start_xmit()
226 	ndev->stats.tx_errors++;  in ntb_netdev_start_xmit()
233 	struct net_device *ndev = dev->ndev;  in ntb_netdev_tx_timer()  local
242 		if (netif_queue_stopped(ndev))  in ntb_netdev_tx_timer()
243 			netif_wake_queue(ndev);  in ntb_netdev_tx_timer()
247 static int ntb_netdev_open(struct net_device *ndev)  in ntb_netdev_open()  argument
249 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_open()
255 		skb = netdev_alloc_skb(ndev, ndev->mtu + ETH_HLEN);  in ntb_netdev_open()
262 					      ndev->mtu + ETH_HLEN);  in ntb_netdev_open()
271 	netif_carrier_off(ndev);  in ntb_netdev_open()
273 	netif_start_queue(ndev);  in ntb_netdev_open()
283 static int ntb_netdev_close(struct net_device *ndev)  in ntb_netdev_close()  argument
285 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_close()
299 static int ntb_netdev_change_mtu(struct net_device *ndev, int new_mtu)  in ntb_netdev_change_mtu()  argument
301 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_change_mtu()
308 	if (!netif_running(ndev)) {  in ntb_netdev_change_mtu()
309 		ndev->mtu = new_mtu;  in ntb_netdev_change_mtu()
316 	if (ndev->mtu < new_mtu) {  in ntb_netdev_change_mtu()
323 			skb = netdev_alloc_skb(ndev, new_mtu + ETH_HLEN);  in ntb_netdev_change_mtu()
338 	ndev->mtu = new_mtu;  in ntb_netdev_change_mtu()
350 	netdev_err(ndev, "Error changing MTU, device inoperable\n");  in ntb_netdev_change_mtu()
362 static void ntb_get_drvinfo(struct net_device *ndev,  in ntb_get_drvinfo()  argument
365 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_get_drvinfo()
404 	struct net_device *ndev;  in ntb_netdev_probe()  local
414 	ndev = alloc_etherdev(sizeof(*dev));  in ntb_netdev_probe()
415 	if (!ndev)  in ntb_netdev_probe()
418 	SET_NETDEV_DEV(ndev, client_dev);  in ntb_netdev_probe()
420 	dev = netdev_priv(ndev);  in ntb_netdev_probe()
421 	dev->ndev = ndev;  in ntb_netdev_probe()
423 	ndev->features = NETIF_F_HIGHDMA;  in ntb_netdev_probe()
425 	ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;  in ntb_netdev_probe()
427 	ndev->hw_features = ndev->features;  in ntb_netdev_probe()
428 	ndev->watchdog_timeo = msecs_to_jiffies(NTB_TX_TIMEOUT_MS);  in ntb_netdev_probe()
430 	eth_random_addr(ndev->perm_addr);  in ntb_netdev_probe()
431 	dev_addr_set(ndev, ndev->perm_addr);  in ntb_netdev_probe()
433 	ndev->netdev_ops = &ntb_netdev_ops;  in ntb_netdev_probe()
434 	ndev->ethtool_ops = &ntb_ethtool_ops;  in ntb_netdev_probe()
436 	ndev->min_mtu = 0;  in ntb_netdev_probe()
437 	ndev->max_mtu = ETH_MAX_MTU;  in ntb_netdev_probe()
439 	dev->qp = ntb_transport_create_queue(ndev, client_dev,  in ntb_netdev_probe()
446 	ndev->mtu = ntb_transport_max_size(dev->qp) - ETH_HLEN;  in ntb_netdev_probe()
448 	rc = register_netdev(ndev);  in ntb_netdev_probe()
452 	dev_set_drvdata(client_dev, ndev);  in ntb_netdev_probe()
453 	dev_info(&pdev->dev, "%s created\n", ndev->name);  in ntb_netdev_probe()
459 	free_netdev(ndev);  in ntb_netdev_probe()
465 	struct net_device *ndev = dev_get_drvdata(client_dev);  in ntb_netdev_remove()  local
466 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_remove()
468 	unregister_netdev(ndev);  in ntb_netdev_remove()
470 	free_netdev(ndev);  in ntb_netdev_remove()