Suse Enterprise Server: ifconfig does not call my Network Device 's open function

[pvpnguyen]

Hello Experts,

I have a little Network Device driver. I can insert it into the Kernel (2.6.27-5) of Suse Enterprise Server 11 without problems but I get these messages in /var/log/messages:

"ifup: Test"
"ifup: No configuration found for Test".

Then when I try to assign the IP address to it using "ifconfig Test 192.168.1.1", the open function of my Network Device driver does not get called. Instead I get this error message "SIOCSIFFLAGS: Cannot assign requested address". Do I make any mistake in registering the Device Driver? This works fine on readhat 5.0 ( kernel 2.6.18 ). Thanks.

#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/init.h>

/*================================================= ===============
Function Prototypes
================================================== ================*/
int My_Init_Module(void);
int My_open(struct net_device*);
int My_release(struct net_device*);
void My_Cleanup_Module(void);
static int My_xmit(struct sk_buff*,struct net_device*);
int My_func(struct sk_buff*,struct net_device*,struct packet_type*);
void My_Init(struct net_device *dev);

struct net_device *test;
struct packet_type *mypkt;

int My_Init_Module(void)
{
int result;

test = alloc_netdev(0, "Test", My_Init);
if(test == NULL)
goto out;

if((result = register_netdev(test))){
printk(KERN_ALERT "Error %d : network Device Test could not initialized\n",result);
} else {
printk(KERN_INFO " Test is inserted successfully\n");
}

return result;

out:
printk(KERN_ALERT "\n Error Initializing the Device\n");
return 0;
}


void My_Init(struct net_device *dev)
{
ether_setup(dev);
dev->open = My_open;
dev->stop = My_release;
dev->hard_start_xmit= My_xmit;
printk(KERN_ALERT "Network Device Test Initialized\n");
}

int My_open(struct net_device *dev)
{

printk(KERN_ALERT "Network Device Test is UP\n");
netif_start_queue(dev);
return 0;
}

int My_release(struct net_device *dev)
{
printk(KERN_ALERT "Network Device Test Closed \n");
netif_stop_queue(dev);
return 0;
}


int My_func(struct sk_buff *skb,struct net_device *dev,struct packet_type *pkt)
{
return 0;
}

static int My_xmit(struct sk_buff *sk, struct net_device *net)
{
return 0;
}

void My_Cleanup_Module(void)
{
printk(KERN_ALERT "Network Device Test Uninitialized\n");
unregister_netdev(test);
free_netdev(test);
}

module_init (My_Init_Module);
module_exit (My_Cleanup_Module);

[pvpnguyen]

I resolved the problem by myself. You need to set the MAC address in My_Init() function so that ifconfig can call the My_open() function. Hope that this helps somebody.