76 	struct net_device *ndev;  member
88 	struct net_device *ndev = data;  in ntb_netdev_event_handler()  local
89 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_event_handler()
91 	netdev_dbg(ndev, "Event %x, Link %x\n", link_is_up,  in ntb_netdev_event_handler()
96 			netif_carrier_on(ndev);  in ntb_netdev_event_handler()
98 		netif_carrier_off(ndev);  in ntb_netdev_event_handler()
105 	struct net_device *ndev = qp_data;  in ntb_netdev_rx_handler()  local
113 	netdev_dbg(ndev, "%s: %d byte payload received\n", __func__, len);  in ntb_netdev_rx_handler()
116 		ndev->stats.rx_errors++;  in ntb_netdev_rx_handler()
117 		ndev->stats.rx_length_errors++;  in ntb_netdev_rx_handler()
122 	skb->protocol = eth_type_trans(skb, ndev);  in ntb_netdev_rx_handler()
126 		ndev->stats.rx_errors++;  in ntb_netdev_rx_handler()
127 		ndev->stats.rx_dropped++;  in ntb_netdev_rx_handler()
129 		ndev->stats.rx_packets++;  in ntb_netdev_rx_handler()
130 		ndev->stats.rx_bytes += len;  in ntb_netdev_rx_handler()
133 	skb = netdev_alloc_skb(ndev, ndev->mtu + ETH_HLEN);  in ntb_netdev_rx_handler()
135 		ndev->stats.rx_errors++;  in ntb_netdev_rx_handler()
136 		ndev->stats.rx_frame_errors++;  in ntb_netdev_rx_handler()
141 	rc = ntb_transport_rx_enqueue(qp, skb, skb->data, ndev->mtu + ETH_HLEN);  in ntb_netdev_rx_handler()
144 		ndev->stats.rx_errors++;  in ntb_netdev_rx_handler()
145 		ndev->stats.rx_fifo_errors++;  in ntb_netdev_rx_handler()
169 static int ntb_netdev_maybe_stop_tx(struct net_device *ndev,  in ntb_netdev_maybe_stop_tx()  argument
172 	if (netif_queue_stopped(ndev) ||  in ntb_netdev_maybe_stop_tx()
176 	return __ntb_netdev_maybe_stop_tx(ndev, qp, size);  in ntb_netdev_maybe_stop_tx()
182 	struct net_device *ndev = qp_data;  in ntb_netdev_tx_handler()  local
184 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_tx_handler()
187 	if (!skb || !ndev)  in ntb_netdev_tx_handler()
191 		ndev->stats.tx_packets++;  in ntb_netdev_tx_handler()
192 		ndev->stats.tx_bytes += skb->len;  in ntb_netdev_tx_handler()
194 		ndev->stats.tx_errors++;  in ntb_netdev_tx_handler()
195 		ndev->stats.tx_aborted_errors++;  in ntb_netdev_tx_handler()
205 		if (netif_queue_stopped(ndev))  in ntb_netdev_tx_handler()
206 			netif_wake_queue(ndev);  in ntb_netdev_tx_handler()
211 					 struct net_device *ndev)  in ntb_netdev_start_xmit()  argument
213 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_start_xmit()
216 	ntb_netdev_maybe_stop_tx(ndev, dev->qp, tx_stop);  in ntb_netdev_start_xmit()
223 	ntb_netdev_maybe_stop_tx(ndev, dev->qp, tx_stop);  in ntb_netdev_start_xmit()
228 	ndev->stats.tx_dropped++;  in ntb_netdev_start_xmit()
229 	ndev->stats.tx_errors++;  in ntb_netdev_start_xmit()
235 	struct net_device *ndev = (struct net_device *)data;  in ntb_netdev_tx_timer()  local
236 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_tx_timer()
245 		if (netif_queue_stopped(ndev))  in ntb_netdev_tx_timer()
246 			netif_wake_queue(ndev);  in ntb_netdev_tx_timer()
250 static int ntb_netdev_open(struct net_device *ndev)  in ntb_netdev_open()  argument
252 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_open()
258 		skb = netdev_alloc_skb(ndev, ndev->mtu + ETH_HLEN);  in ntb_netdev_open()
265 					      ndev->mtu + ETH_HLEN);  in ntb_netdev_open()
272 	setup_timer(&dev->tx_timer, ntb_netdev_tx_timer, (unsigned long)ndev);  in ntb_netdev_open()
274 	netif_carrier_off(ndev);  in ntb_netdev_open()
276 	netif_start_queue(ndev);  in ntb_netdev_open()
286 static int ntb_netdev_close(struct net_device *ndev)  in ntb_netdev_close()  argument
288 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_close()
302 static int ntb_netdev_change_mtu(struct net_device *ndev, int new_mtu)  in ntb_netdev_change_mtu()  argument
304 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_netdev_change_mtu()
311 	if (!netif_running(ndev)) {  in ntb_netdev_change_mtu()
312 		ndev->mtu = new_mtu;  in ntb_netdev_change_mtu()
319 	if (ndev->mtu < new_mtu) {  in ntb_netdev_change_mtu()
326 			skb = netdev_alloc_skb(ndev, new_mtu + ETH_HLEN);  in ntb_netdev_change_mtu()
341 	ndev->mtu = new_mtu;  in ntb_netdev_change_mtu()
353 	netdev_err(ndev, "Error changing MTU, device inoperable\n");  in ntb_netdev_change_mtu()
365 static void ntb_get_drvinfo(struct net_device *ndev,  in ntb_get_drvinfo()  argument
368 	struct ntb_netdev *dev = netdev_priv(ndev);  in ntb_get_drvinfo()
406 	struct net_device *ndev;  in ntb_netdev_probe()  local
416 	ndev = alloc_etherdev(sizeof(*dev));  in ntb_netdev_probe()
417 	if (!ndev)  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 	random_ether_addr(ndev->perm_addr);  in ntb_netdev_probe()
431 	memcpy(ndev->dev_addr, ndev->perm_addr, ndev->addr_len);  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 	dev->qp = ntb_transport_create_queue(ndev, client_dev,  in ntb_netdev_probe()
443 	ndev->mtu = ntb_transport_max_size(dev->qp) - ETH_HLEN;  in ntb_netdev_probe()
445 	rc = register_netdev(ndev);  in ntb_netdev_probe()
450 	dev_info(&pdev->dev, "%s created\n", ndev->name);  in ntb_netdev_probe()
456 	free_netdev(ndev);  in ntb_netdev_probe()
463 	struct net_device *ndev;  in ntb_netdev_remove()  local
482 	ndev = dev->ndev;  in ntb_netdev_remove()
484 	unregister_netdev(ndev);  in ntb_netdev_remove()
486 	free_netdev(ndev);  in ntb_netdev_remove()