RGE_MCAST_NUM
uint8_t mcast_hash[RGE_MCAST_NUM];
reg = (~(index / RGE_MCAST_NUM)) & 0x7;
reg = index / RGE_MCAST_NUM;
hashp[reg] |= 1 << (index % RGE_MCAST_NUM);
hashp[reg] &= ~ (1 << (index % RGE_MCAST_NUM));