[etherlab-users] Running on non-8139 NIC's

[Anders Blomdell]

Hi,

Is there any simple way to run etehrlab with a non 8139 NIC? Trying the 
following hack with a spare e1000 NIC fails (not surprisingly) on a segfault in 
e1000_xmit_frame, called from ec_device_send+0x50. Question, is there any simple 
way to compile a (non-realtime) master that binds to an arbitrary net_device (ethX)?

Regards

Anders Blomdell


#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include "ecdev.h"

static char *wrap;
module_param(wrap, charp, 0);

static ec_device_t *ec_dev = NULL;
static struct net_device *wrap_dev = NULL;

static void ethXwrap_cleanup_module(void);

static void ec_poll(struct net_device *dev)
{
   //printk("%s\n", __FUNCTION__);
}

static int __init ethXwrap_init_module(void)
{
   int result = 0;
   struct net_device *true_dev = 0;

   if (result != 0 || !wrap) {
     result = -1;
   } else {
     true_dev = dev_get_by_name(wrap);
   }

   if (result != 0 || !true_dev) {
     result = -1;
   } else {
     ec_dev = ecdev_register(0, true_dev, ec_poll, THIS_MODULE);
     ecdev_link_state(ec_dev, 1);

     printk("Wrapped '%s' for EtherCAT\n", wrap);
   }

   if (result) {
     ethXwrap_cleanup_module();
   }

   return result;
}

static  void __exit ethXwrap_cleanup_module(void)
{
   printk("%s\n", __FUNCTION__);
   if (ec_dev) {
     ecdev_link_state(ec_dev, 0);
     ecdev_unregister(0, ec_dev);
     printk("Unwrapped '%s' for EtherCAT\n", wrap);
   }
}

module_init(ethXwrap_init_module);
module_exit(ethXwrap_cleanup_module);