ETH_CHAIN_COS2_START_OFFSET
cosx_start_offset = ETH_CHAIN_COS2_START_OFFSET(pdev);
#define ETH_IS_CHAIN_IN_COS2_RANGE(_pdev, _chain) ( lm_mp_eth_is_chain_in_cosx_range(_pdev, _chain, ETH_CHAIN_COS2_START_OFFSET(_pdev)))