Compaq TRU64 AA-RNG2A-TE - Manual (Page 124)

3 Calls the el_reset_locked( ) routine, which performs the actual
tasks that are associated with resetting the device.
4 Calls the simple_unlock( ) routine to release the simple lock for the
el_softc
data structure and then resets the CPU priority to the level
that it was originally at upon entrance to this routine.
11.2 Implementing the el_reset_locked Routine
The following code shows how the el_reset_locked( ) routine resets
and restarts the hardware:
static void el_reset_locked(struct el_softc *sc,
struct ifnet *ifp,
int unit)
{
ifp->if_flags &= ~ IFF_RUNNING; 1
el_init_locked(sc, ifp, unit); 2
}
1 Indicates that the device is no longer running by clearing the
IFF_RUNNING
bit in the interface flags structure member.
2 Calls the el_init_locked( ) routine. See Section 8.2 for a description
of the el_init_locked( ) routine.
11–2 Implementing the Reset Section