struct netpoll {
struct net_device *dev;
+ struct net_device *real_dev;
char dev_name[IFNAMSIZ];
const char *name;
void (*rx_hook)(struct netpoll *, int, char *, int);
- u32 local_ip, remote_ip;
+ __be32 local_ip, remote_ip;
u16 local_port, remote_port;
u8 remote_mac[ETH_ALEN];
+
+ struct list_head rx; /* rx_np list element */
};
struct netpoll_info {
atomic_t refcnt;
+
+ int rx_flags;
spinlock_t rx_lock;
- struct netpoll *rx_np; /* netpoll that registered an rx_hook */
+ struct list_head rx_np; /* netpolls that registered an rx_hook */
+
struct sk_buff_head arp_tx; /* list of arp requests to reply to */
struct sk_buff_head txq;
+
struct delayed_work tx_work;
+
+ struct netpoll *netpoll;
};
+void netpoll_poll_dev(struct net_device *dev);
void netpoll_poll(struct netpoll *np);
void netpoll_send_udp(struct netpoll *np, const char *msg, int len);
void netpoll_print_options(struct netpoll *np);
void netpoll_set_trap(int trap);
void netpoll_cleanup(struct netpoll *np);
int __netpoll_rx(struct sk_buff *skb);
+void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb);
#ifdef CONFIG_NETPOLL
-static inline int netpoll_rx(struct sk_buff *skb)
+static inline bool netpoll_rx(struct sk_buff *skb)
{
struct netpoll_info *npinfo = skb->dev->npinfo;
unsigned long flags;
- int ret = 0;
+ bool ret = false;
- if (!npinfo || !npinfo->rx_np)
- return 0;
+ if (!npinfo || (list_empty(&npinfo->rx_np) && !npinfo->rx_flags))
+ return false;
spin_lock_irqsave(&npinfo->rx_lock, flags);
- /* check rx_np again with the lock held */
- if (npinfo->rx_np && __netpoll_rx(skb))
- ret = 1;
+ /* check rx_flags again with the lock held */
+ if (npinfo->rx_flags && __netpoll_rx(skb))
+ ret = true;
spin_unlock_irqrestore(&npinfo->rx_lock, flags);
return ret;
}
+static inline int netpoll_rx_on(struct sk_buff *skb)
+{
+ struct netpoll_info *npinfo = skb->dev->npinfo;
+
+ return npinfo && (!list_empty(&npinfo->rx_np) || npinfo->rx_flags);
+}
+
static inline int netpoll_receive_skb(struct sk_buff *skb)
{
if (!list_empty(&skb->dev->napi_list))
rcu_read_unlock();
}
-static inline void netpoll_netdev_init(struct net_device *dev)
-{
- INIT_LIST_HEAD(&dev->napi_list);
-}
-
#else
static inline int netpoll_rx(struct sk_buff *skb)
{
return 0;
}
+static inline int netpoll_rx_on(struct sk_buff *skb)
+{
+ return 0;
+}
static inline int netpoll_receive_skb(struct sk_buff *skb)
{
return 0;