PPE_MRU_MTU_CTRL_TBL_INC
reg = PPE_MRU_MTU_CTRL_TBL_ADDR + PPE_MRU_MTU_CTRL_TBL_INC * port;
reg = PPE_MRU_MTU_CTRL_TBL_ADDR + PPE_MRU_MTU_CTRL_TBL_INC * i;