dev.h

一个基于linux的TCP/IP协议栈的实现

/* dev.h
 * [e-mail]
 * 2006-09-18
 */

#ifndef INCLUDED_DEV_H
#define INCLUDED_DEV_H

#include <linux/skbuff.h>
#include <asm/percpu.h>
#include <linux/netdevice.h>

#define HARD_TX_LOCK(dev, cpu) {			\
	if ((dev->features & NETIF_F_LLTX) == 0) {	\
		spin_lock(&dev->xmit_lock);		\
		dev->xmit_lock_owner = cpu;		\
	}						\
}

#define HARD_TX_UNLOCK(dev) {				\
	if ((dev->features & NETIF_F_LLTX) == 0) {	\
		dev->xmit_lock_owner = -1;		\
		spin_unlock(&dev->xmit_lock);		\
	}						\
}

DECLARE_PER_CPU( struct softnet_data, mysoftnet_data );
DECLARE_PER_CPU(struct netif_rx_stats, mynetdev_rx_stat);

#define MYNET_TX_SOFTIRQ		30
#define MYNET_RX_SOFTIRQ		31

int mydev_ioctl(unsigned int cmd, void __user *arg);

int myregister_gifconf( unsigned int family, gifconf_func_t * gifconf );
static inline int myunregister_gifconf(unsigned int family)
{
	return myregister_gifconf(family, NULL);
}

int mynetif_rx(struct sk_buff *skb);
void mydev_add_pack(struct packet_type *pt);
void mydev_remove_pack(struct packet_type *pt);
int mydev_queue_xmit(struct sk_buff *skb);
int __init mynet_dev_init(void);
void __exit mynet_dev_exit(void);

#endif //INCLUDED_DEV_H