Symbol: prom_serengeti_tunnel_switch
usr/src/uts/sun4u/serengeti/io/sgsbbc_iosram.c
932
if ((rc = prom_serengeti_tunnel_switch(node, board))
usr/src/uts/sun4u/sys/prom_plat.h
253
extern int prom_serengeti_tunnel_switch(uint_t node, uint_t board);