68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/*
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* Common code for low-level network console, dump, and debugger code
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*
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* Derived from netconsole, kgdb-over-ethernet, and netdump patches
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*/
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#ifndef _LINUX_NETPOLL_H
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#define _LINUX_NETPOLL_H
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#include <linux/netdevice.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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struct netpoll;
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struct netpoll {
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struct net_device *dev;
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char dev_name[16], *name;
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int rx_flags;
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void (*rx_hook)(struct netpoll *, int, char *, int);
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void (*drop)(struct sk_buff *skb);
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u32 local_ip, remote_ip;
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u16 local_port, remote_port;
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unsigned char local_mac[6], remote_mac[6];
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spinlock_t poll_lock;
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int poll_owner;
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};
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void netpoll_poll(struct netpoll *np);
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void netpoll_send_udp(struct netpoll *np, const char *msg, int len);
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int netpoll_parse_options(struct netpoll *np, char *opt);
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int netpoll_setup(struct netpoll *np);
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int netpoll_trap(void);
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void netpoll_set_trap(int trap);
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void netpoll_cleanup(struct netpoll *np);
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int __netpoll_rx(struct sk_buff *skb);
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void netpoll_queue(struct sk_buff *skb);
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#ifdef CONFIG_NETPOLL
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static inline int netpoll_rx(struct sk_buff *skb)
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{
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return skb->dev->np && skb->dev->np->rx_flags && __netpoll_rx(skb);
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}
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static inline void netpoll_poll_lock(struct net_device *dev)
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{
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if (dev->np) {
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spin_lock(&dev->np->poll_lock);
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dev->np->poll_owner = smp_processor_id();
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}
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}
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static inline void netpoll_poll_unlock(struct net_device *dev)
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{
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if (dev->np) {
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spin_unlock(&dev->np->poll_lock);
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dev->np->poll_owner = -1;
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}
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}
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#else
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#define netpoll_rx(a) 0
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#define netpoll_poll_lock(a)
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#define netpoll_poll_unlock(a)
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#endif
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#endif
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