net_instance_register - register a set of instances to occur with IP instance
int net_instance_register(net_instance_t *instances);
illumos DDI specific (illumos DDI).
The net_instance_register() function attempts to record the set of
functions passed by instances that are to be called when an event related to
IP instance maintenance occurs.
If the net_instance_register() function succeeds, DDI_SUCCESS is
returned. Otherwise, DDI_FAILURE is returned to indicate failure due to
the name in the instance already being present.
The net_instance_register() function may be called from user or kernel
See attributes(5) for descriptions of the following attributes: