1 #include <linux/kernel.h>
2 #include <linux/netdevice.h>
3 #include <linux/etherdevice.h>
4 #include <linux/rcupdate.h>
5 #include <linux/skbuff.h>
11 struct net_device_stats stats;
15 static struct dp_dev *dp_dev_priv(struct net_device *netdev)
17 return netdev_priv(netdev);
20 static struct net_device_stats *dp_dev_get_stats(struct net_device *netdev)
22 struct dp_dev *dp_dev = dp_dev_priv(netdev);
23 return &dp_dev->stats;
26 int dp_dev_recv(struct net_device *netdev, struct sk_buff *skb)
29 struct dp_dev *dp_dev = dp_dev_priv(netdev);
30 skb->pkt_type = PACKET_HOST;
31 skb->protocol = eth_type_trans(skb, netdev);
33 netdev->last_rx = jiffies;
34 dp_dev->stats.rx_packets++;
35 dp_dev->stats.rx_bytes += len;
39 static int dp_dev_mac_addr(struct net_device *dev, void *p)
41 struct sockaddr *addr = p;
43 if (netif_running(dev))
45 if (!is_valid_ether_addr(addr->sa_data))
46 return -EADDRNOTAVAIL;
47 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
51 static int dp_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
53 struct dp_dev *dp_dev = dp_dev_priv(netdev);
57 if (likely(dp != NULL)) {
58 dp_dev->stats.tx_packets++;
59 dp_dev->stats.tx_bytes += skb->len;
60 skb_reset_mac_header(skb);
61 fwd_port_input(dp->chain, skb, OFPP_LOCAL);
63 dp_dev->stats.tx_dropped++;
70 static int dp_dev_open(struct net_device *netdev)
72 netif_start_queue(netdev);
76 static int dp_dev_stop(struct net_device *netdev)
78 netif_stop_queue(netdev);
83 do_setup(struct net_device *netdev)
87 netdev->get_stats = dp_dev_get_stats;
88 netdev->hard_start_xmit = dp_dev_xmit;
89 netdev->open = dp_dev_open;
90 netdev->stop = dp_dev_stop;
91 netdev->tx_queue_len = 0;
92 netdev->set_mac_address = dp_dev_mac_addr;
94 netdev->flags = IFF_BROADCAST | IFF_MULTICAST;
96 random_ether_addr(netdev->dev_addr);
100 int dp_dev_setup(struct datapath *dp)
102 struct dp_dev *dp_dev;
103 struct net_device *netdev;
107 snprintf(of_name, sizeof of_name, "of%d", dp->dp_idx);
108 netdev = alloc_netdev(sizeof(struct dp_dev), of_name, do_setup);
112 err = register_netdev(netdev);
118 dp_dev = dp_dev_priv(netdev);
124 void dp_dev_destroy(struct datapath *dp)
126 struct dp_dev *dp_dev = dp_dev_priv(dp->netdev);
129 unregister_netdev(dp->netdev);
130 free_netdev(dp->netdev);
133 int is_dp_dev(struct net_device *netdev)
135 return netdev->open == dp_dev_open;