DM_MAX_EXPANDER_PHYS
for (i=0;i<DM_MAX_EXPANDER_PHYS;i++)
bit16 currentIndex[DM_MAX_EXPANDER_PHYS]; /* routing table index in use */
bit8 upStreamPhys[DM_MAX_EXPANDER_PHYS];
bit8 downStreamPhys[DM_MAX_EXPANDER_PHYS];
bit8 routingAttribute[DM_MAX_EXPANDER_PHYS];