58 	int (*open)(struct iss_net_private *lp);
59 	void (*close)(struct iss_net_private *lp);
60 	int (*read)(struct iss_net_private *lp, struct sk_buff **skb);
61 	int (*write)(struct iss_net_private *lp, struct sk_buff **skb);
63 	int (*poll)(struct iss_net_private *lp);
157 static int tuntap_open(struct iss_net_private *lp)  in tuntap_open()  argument
160 	char *dev_name = lp->tp.info.tuntap.dev_name;  in tuntap_open()
167 		       lp->dev->name, fd, errno);  in tuntap_open()
178 		       lp->dev->name, dev_name, err, errno);  in tuntap_open()
183 	lp->tp.info.tuntap.fd = fd;  in tuntap_open()
187 static void tuntap_close(struct iss_net_private *lp)  in tuntap_close()  argument
189 	simc_close(lp->tp.info.tuntap.fd);  in tuntap_close()
190 	lp->tp.info.tuntap.fd = -1;  in tuntap_close()
193 static int tuntap_read(struct iss_net_private *lp, struct sk_buff **skb)  in tuntap_read()  argument
195 	return simc_read(lp->tp.info.tuntap.fd,  in tuntap_read()
199 static int tuntap_write(struct iss_net_private *lp, struct sk_buff **skb)  in tuntap_write()  argument
201 	return simc_write(lp->tp.info.tuntap.fd, (*skb)->data, (*skb)->len);  in tuntap_write()
209 static int tuntap_poll(struct iss_net_private *lp)  in tuntap_poll()  argument
211 	return simc_poll(lp->tp.info.tuntap.fd);  in tuntap_poll()
227 static int tuntap_probe(struct iss_net_private *lp, int index, char *init)  in tuntap_probe()  argument
229 	struct net_device *dev = lp->dev;  in tuntap_probe()
257 	strscpy(lp->tp.info.tuntap.dev_name, dev_name,  in tuntap_probe()
258 		sizeof(lp->tp.info.tuntap.dev_name));  in tuntap_probe()
262 	lp->mtu = TRANSPORT_TUNTAP_MTU;  in tuntap_probe()
264 	lp->tp.info.tuntap.fd = -1;  in tuntap_probe()
265 	lp->tp.net_ops = &tuntap_ops;  in tuntap_probe()
274 	struct iss_net_private *lp = netdev_priv(dev);  in iss_net_rx()  local
280 	if (lp->tp.net_ops->poll(lp) == 0)  in iss_net_rx()
287 		spin_lock_bh(&lp->lock);  in iss_net_rx()
288 		lp->stats.rx_dropped++;  in iss_net_rx()
289 		spin_unlock_bh(&lp->lock);  in iss_net_rx()
299 	pkt_len = lp->tp.net_ops->read(lp, &skb);  in iss_net_rx()
304 		skb->protocol = lp->tp.net_ops->protocol(skb);  in iss_net_rx()
306 		spin_lock_bh(&lp->lock);  in iss_net_rx()
307 		lp->stats.rx_bytes += skb->len;  in iss_net_rx()
308 		lp->stats.rx_packets++;  in iss_net_rx()
309 		spin_unlock_bh(&lp->lock);  in iss_net_rx()
317 static int iss_net_poll(struct iss_net_private *lp)  in iss_net_poll()  argument
321 	if (!netif_running(lp->dev))  in iss_net_poll()
324 	while ((err = iss_net_rx(lp->dev)) > 0)  in iss_net_poll()
329 		       lp->dev->name, err);  in iss_net_poll()
330 		dev_close(lp->dev);  in iss_net_poll()
332 		/* FIXME reactivate_fd(lp->fd, ISS_ETH_IRQ); */  in iss_net_poll()
341 	struct iss_net_private *lp = from_timer(lp, t, timer);  in iss_net_timer()  local
343 	iss_net_poll(lp);  in iss_net_timer()
344 	mod_timer(&lp->timer, jiffies + lp->timer_val);  in iss_net_timer()
350 	struct iss_net_private *lp = netdev_priv(dev);  in iss_net_open()  local
353 	err = lp->tp.net_ops->open(lp);  in iss_net_open()
366 	timer_setup(&lp->timer, iss_net_timer, 0);  in iss_net_open()
367 	lp->timer_val = ISS_NET_TIMER_VALUE;  in iss_net_open()
368 	mod_timer(&lp->timer, jiffies + lp->timer_val);  in iss_net_open()
375 	struct iss_net_private *lp = netdev_priv(dev);  in iss_net_close()  local
378 	del_timer_sync(&lp->timer);  in iss_net_close()
379 	lp->tp.net_ops->close(lp);  in iss_net_close()
386 	struct iss_net_private *lp = netdev_priv(dev);  in iss_net_start_xmit()  local
391 	len = lp->tp.net_ops->write(lp, &skb);  in iss_net_start_xmit()
394 		spin_lock_bh(&lp->lock);  in iss_net_start_xmit()
395 		lp->stats.tx_packets++;  in iss_net_start_xmit()
396 		lp->stats.tx_bytes += skb->len;  in iss_net_start_xmit()
397 		spin_unlock_bh(&lp->lock);  in iss_net_start_xmit()
406 		spin_lock_bh(&lp->lock);  in iss_net_start_xmit()
407 		lp->stats.tx_dropped++;  in iss_net_start_xmit()
408 		spin_unlock_bh(&lp->lock);  in iss_net_start_xmit()
424 	struct iss_net_private *lp = netdev_priv(dev);  in iss_net_get_stats64()  local
426 	spin_lock_bh(&lp->lock);  in iss_net_get_stats64()
427 	*stats = lp->stats;  in iss_net_get_stats64()
428 	spin_unlock_bh(&lp->lock);  in iss_net_get_stats64()
472 	struct iss_net_private *lp =  in iss_net_pdev_release()  local
475 	free_netdev(lp->dev);  in iss_net_pdev_release()
481 	struct iss_net_private *lp;  in iss_net_configure()  local
483 	dev = alloc_etherdev(sizeof(*lp));  in iss_net_configure()
491 	lp = netdev_priv(dev);  in iss_net_configure()
492 	*lp = (struct iss_net_private) {  in iss_net_configure()
497 	spin_lock_init(&lp->lock);  in iss_net_configure()
507 	 * Note: more protocols can be added by adding '&& !X_init(lp, eth)'.  in iss_net_configure()
510 	if (!tuntap_probe(lp, index, init)) {  in iss_net_configure()
526 	lp->pdev.id = index;  in iss_net_configure()
527 	lp->pdev.name = DRIVER_NAME;  in iss_net_configure()
528 	lp->pdev.dev.release = iss_net_pdev_release;  in iss_net_configure()
529 	if (platform_device_register(&lp->pdev))  in iss_net_configure()
531 	SET_NETDEV_DEV(dev, &lp->pdev.dev);  in iss_net_configure()
534 	dev->mtu = lp->mtu;  in iss_net_configure()
542 		platform_device_unregister(&lp->pdev);  in iss_net_configure()
548 	timer_setup(&lp->tl, iss_net_user_timer_expire, 0);  in iss_net_configure()