net_init.c

linux和2410结合开发 用他可以生成2410所需的zImage文件

struct net_device *alloc_hippi_dev(int sizeof_priv)
{
	return alloc_netdev(sizeof_priv, "hip%d", hippi_setup);
}

int register_hipdev(struct net_device *dev)
{
	return __register_netdev(dev);
}

void unregister_hipdev(struct net_device *dev)
{
	unregister_netdev(dev);
}

EXPORT_SYMBOL(init_hippi_dev);
EXPORT_SYMBOL(alloc_hippi_dev);
EXPORT_SYMBOL(register_hipdev);
EXPORT_SYMBOL(unregister_hipdev);

static int hippi_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p)
{
	/* Never send broadcast/multicast ARP messages */
	p->mcast_probes = 0;
 
	/* In IPv6 unicast probes are valid even on NBMA,
	* because they are encapsulated in normal IPv6 protocol.
	* Should be a generic flag. 
	*/
	if (p->tbl->family != AF_INET6)
		p->ucast_probes = 0;
	return 0;
}

#endif /* CONFIG_HIPPI */

void ether_setup(struct net_device *dev)
{
	/* Fill in the fields of the device structure with ethernet-generic values.
	   This should be in a common file instead of per-driver.  */
	
	dev->change_mtu		= eth_change_mtu;
	dev->hard_header	= eth_header;
	dev->rebuild_header 	= eth_rebuild_header;
	dev->set_mac_address 	= eth_mac_addr;
	dev->hard_header_cache	= eth_header_cache;
	dev->header_cache_update= eth_header_cache_update;
	dev->hard_header_parse	= eth_header_parse;

	dev->type		= ARPHRD_ETHER;
	dev->hard_header_len 	= ETH_HLEN;
	dev->mtu		= 1500; /* eth_mtu */
	dev->addr_len		= ETH_ALEN;
	dev->tx_queue_len	= 100;	/* Ethernet wants good queues */	
	
	memset(dev->broadcast,0xFF, ETH_ALEN);

	/* New-style flags. */
	dev->flags		= IFF_BROADCAST|IFF_MULTICAST;
}
EXPORT_SYMBOL(ether_setup);

#ifdef CONFIG_FDDI

void fddi_setup(struct net_device *dev)
{
	/*
	 * Fill in the fields of the device structure with FDDI-generic values.
	 * This should be in a common file instead of per-driver.
	 */
	
	dev->change_mtu			= fddi_change_mtu;
	dev->hard_header		= fddi_header;
	dev->rebuild_header		= fddi_rebuild_header;

	dev->type				= ARPHRD_FDDI;
	dev->hard_header_len	= FDDI_K_SNAP_HLEN+3;	/* Assume 802.2 SNAP hdr len + 3 pad bytes */
	dev->mtu				= FDDI_K_SNAP_DLEN;		/* Assume max payload of 802.2 SNAP frame */
	dev->addr_len			= FDDI_K_ALEN;
	dev->tx_queue_len		= 100;	/* Long queues on FDDI */
	
	memset(dev->broadcast, 0xFF, FDDI_K_ALEN);

	/* New-style flags */
	dev->flags		= IFF_BROADCAST | IFF_MULTICAST;
}
EXPORT_SYMBOL(fddi_setup);

#endif /* CONFIG_FDDI */

#ifdef CONFIG_HIPPI
void hippi_setup(struct net_device *dev)
{
	dev->set_multicast_list	= NULL;
	dev->change_mtu			= hippi_change_mtu;
	dev->hard_header		= hippi_header;
	dev->rebuild_header 		= hippi_rebuild_header;
	dev->set_mac_address 		= hippi_mac_addr;
	dev->hard_header_parse		= NULL;
	dev->hard_header_cache		= NULL;
	dev->header_cache_update	= NULL;
	dev->neigh_setup 		= hippi_neigh_setup_dev; 

	/*
	 * We don't support HIPPI `ARP' for the time being, and probably
	 * never will unless someone else implements it. However we
	 * still need a fake ARPHRD to make ifconfig and friends play ball.
	 */
	dev->type		= ARPHRD_HIPPI;
	dev->hard_header_len 	= HIPPI_HLEN;
	dev->mtu		= 65280;
	dev->addr_len		= HIPPI_ALEN;
	dev->tx_queue_len	= 25 /* 5 */;
	memset(dev->broadcast, 0xFF, HIPPI_ALEN);


	/*
	 * HIPPI doesn't support broadcast+multicast and we only use
	 * static ARP tables. ARP is disabled by hippi_neigh_setup_dev. 
	 */
	dev->flags = 0; 
}
EXPORT_SYMBOL(hippi_setup);
#endif /* CONFIG_HIPPI */

#if defined(CONFIG_ATALK) || defined(CONFIG_ATALK_MODULE)

static int ltalk_change_mtu(struct net_device *dev, int mtu)
{
	return -EINVAL;
}

static int ltalk_mac_addr(struct net_device *dev, void *addr)
{	
	return -EINVAL;
}


void ltalk_setup(struct net_device *dev)
{
	/* Fill in the fields of the device structure with localtalk-generic values. */
	
	dev->change_mtu		= ltalk_change_mtu;
	dev->hard_header	= NULL;
	dev->rebuild_header 	= NULL;
	dev->set_mac_address 	= ltalk_mac_addr;
	dev->hard_header_cache	= NULL;
	dev->header_cache_update= NULL;

	dev->type		= ARPHRD_LOCALTLK;
	dev->hard_header_len 	= LTALK_HLEN;
	dev->mtu		= LTALK_MTU;
	dev->addr_len		= LTALK_ALEN;
	dev->tx_queue_len	= 10;	
	
	dev->broadcast[0]	= 0xFF;

	dev->flags		= IFF_BROADCAST|IFF_MULTICAST|IFF_NOARP;
}
EXPORT_SYMBOL(ltalk_setup);

#endif /* CONFIG_ATALK || CONFIG_ATALK_MODULE */

int register_netdev(struct net_device *dev)
{
	int err;

	rtnl_lock();

	/*
	 *	If the name is a format string the caller wants us to
	 *	do a name allocation
	 */
	 
	if (strchr(dev->name, '%'))
	{
		err = dev_alloc_name(dev, dev->name);
		if (err < 0)
			goto out;
	}
	
	/*
	 *	Back compatibility hook. Kill this one in 2.5
	 */
	
	if (dev->name[0]==0 || dev->name[0]==' ')
	{
		err = dev_alloc_name(dev, "eth%d");
		if (err < 0)
			goto out;
	}

	err = register_netdevice(dev);

out:
	rtnl_unlock();
	return err;
}

void unregister_netdev(struct net_device *dev)
{
	rtnl_lock();
	unregister_netdevice(dev);
	rtnl_unlock();
}

EXPORT_SYMBOL(register_netdev);
EXPORT_SYMBOL(unregister_netdev);

#ifdef CONFIG_TR

void tr_setup(struct net_device *dev)
{
	/*
	 *	Configure and register
	 */
	
	dev->hard_header	= tr_header;
	dev->rebuild_header	= tr_rebuild_header;

	dev->type		= ARPHRD_IEEE802_TR;
	dev->hard_header_len	= TR_HLEN;
	dev->mtu		= 2000;
	dev->addr_len		= TR_ALEN;
	dev->tx_queue_len	= 100;	/* Long queues on tr */
	
	memset(dev->broadcast,0xFF, TR_ALEN);

	/* New-style flags. */
	dev->flags		= IFF_BROADCAST | IFF_MULTICAST ;
}

/**
 * init_trdev - Register token ring device
 * @dev: A token ring device structure to be filled in, or %NULL if a new
 *	struct should be allocated.
 * @sizeof_priv: Size of additional driver-private structure to be allocated
 *	for this ethernet device
 *
 * Fill in the fields of the device structure with token ring-generic values.
 *
 * If no device structure is passed, a new one is constructed, complete with
 * a private data area of size @sizeof_priv.  A 32-byte (not bit)
 * alignment is enforced for this private data area.
 *
 * If an empty string area is passed as dev->name, or a new structure is made,
 * a new name string is constructed.
 */

struct net_device *init_trdev(struct net_device *dev, int sizeof_priv)
{
	return init_netdev(dev, sizeof_priv, "tr%d", tr_setup);
}

/**
 * alloc_trdev - Register token ring device
 * @sizeof_priv: Size of additional driver-private structure to be allocated
 *	for this token ring device
 *
 * Fill in the fields of the device structure with token ring-generic values.
 *
 * Constructs a new net device, complete with a private data area of
 * size @sizeof_priv.  A 32-byte (not bit) alignment is enforced for
 * this private data area.
 */

struct net_device *alloc_trdev(int sizeof_priv)
{
	return alloc_netdev(sizeof_priv, "tr%d", tr_setup);
}

int register_trdev(struct net_device *dev)
{
	return __register_netdev(dev);
}

void unregister_trdev(struct net_device *dev)
{
	unregister_netdev(dev);
}

EXPORT_SYMBOL(tr_setup);
EXPORT_SYMBOL(init_trdev);
EXPORT_SYMBOL(alloc_trdev);
EXPORT_SYMBOL(register_trdev);
EXPORT_SYMBOL(unregister_trdev);

#endif /* CONFIG_TR */


#ifdef CONFIG_NET_FC

void fc_setup(struct net_device *dev)
{
	dev->hard_header        =        fc_header;
        dev->rebuild_header  	=        fc_rebuild_header;
                
        dev->type               =        ARPHRD_IEEE802;
	dev->hard_header_len    =        FC_HLEN;
        dev->mtu                =        2024;
        dev->addr_len           =        FC_ALEN;
        dev->tx_queue_len       =        100; /* Long queues on fc */

        memset(dev->broadcast,0xFF, FC_ALEN);

        /* New-style flags. */
        dev->flags              =        IFF_BROADCAST;
}

/**
 * init_fcdev - Register fibre channel device
 * @dev: A fibre channel device structure to be filled in, or %NULL if a new
 *	struct should be allocated.
 * @sizeof_priv: Size of additional driver-private structure to be allocated
 *	for this ethernet device
 *
 * Fill in the fields of the device structure with fibre channel-generic values.
 *
 * If no device structure is passed, a new one is constructed, complete with
 * a private data area of size @sizeof_priv.  A 32-byte (not bit)
 * alignment is enforced for this private data area.
 *
 * If an empty string area is passed as dev->name, or a new structure is made,
 * a new name string is constructed.
 */

struct net_device *init_fcdev(struct net_device *dev, int sizeof_priv)
{
	return init_netdev(dev, sizeof_priv, "fc%d", fc_setup);
}

/**
 * alloc_fcdev - Register fibre channel device
 * @sizeof_priv: Size of additional driver-private structure to be allocated
 *	for this fibre channel device
 *
 * Fill in the fields of the device structure with fibre channel-generic values.
 *
 * Constructs a new net device, complete with a private data area of
 * size @sizeof_priv.  A 32-byte (not bit) alignment is enforced for
 * this private data area.
 */

struct net_device *alloc_fcdev(int sizeof_priv)
{
	return alloc_netdev(sizeof_priv, "fc%d", fc_setup);
}

int register_fcdev(struct net_device *dev)
{
	return __register_netdev(dev);
}                                               
        
void unregister_fcdev(struct net_device *dev)
{
	unregister_netdev(dev);
}

EXPORT_SYMBOL(fc_setup);
EXPORT_SYMBOL(init_fcdev);
EXPORT_SYMBOL(alloc_fcdev);
EXPORT_SYMBOL(register_fcdev);
EXPORT_SYMBOL(unregister_fcdev);

#endif /* CONFIG_NET_FC */