From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/linux/netpoll.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 include/linux/netpoll.h (limited to 'include/linux/netpoll.h') diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h new file mode 100644 index 000000000000..c0d8b90c5202 --- /dev/null +++ b/include/linux/netpoll.h @@ -0,0 +1,67 @@ +/* + * Common code for low-level network console, dump, and debugger code + * + * Derived from netconsole, kgdb-over-ethernet, and netdump patches + */ + +#ifndef _LINUX_NETPOLL_H +#define _LINUX_NETPOLL_H + +#include +#include +#include + +struct netpoll; + +struct netpoll { + struct net_device *dev; + char dev_name[16], *name; + int rx_flags; + void (*rx_hook)(struct netpoll *, int, char *, int); + void (*drop)(struct sk_buff *skb); + u32 local_ip, remote_ip; + u16 local_port, remote_port; + unsigned char local_mac[6], remote_mac[6]; + spinlock_t poll_lock; + int poll_owner; +}; + +void netpoll_poll(struct netpoll *np); +void netpoll_send_udp(struct netpoll *np, const char *msg, int len); +int netpoll_parse_options(struct netpoll *np, char *opt); +int netpoll_setup(struct netpoll *np); +int netpoll_trap(void); +void netpoll_set_trap(int trap); +void netpoll_cleanup(struct netpoll *np); +int __netpoll_rx(struct sk_buff *skb); +void netpoll_queue(struct sk_buff *skb); + +#ifdef CONFIG_NETPOLL +static inline int netpoll_rx(struct sk_buff *skb) +{ + return skb->dev->np && skb->dev->np->rx_flags && __netpoll_rx(skb); +} + +static inline void netpoll_poll_lock(struct net_device *dev) +{ + if (dev->np) { + spin_lock(&dev->np->poll_lock); + dev->np->poll_owner = smp_processor_id(); + } +} + +static inline void netpoll_poll_unlock(struct net_device *dev) +{ + if (dev->np) { + spin_unlock(&dev->np->poll_lock); + dev->np->poll_owner = -1; + } +} + +#else +#define netpoll_rx(a) 0 +#define netpoll_poll_lock(a) +#define netpoll_poll_unlock(a) +#endif + +#endif -- cgit v1.2.3