* - HNS3_SPECIAL_PORT_SW_CKSUM_MODE
* In this mode, HW can not do checksum for special UDP port like
* 4789, 4790, 6081 for non-tunnel UDP packets and UDP tunnel
* - HNS3_SPECIAL_PORT_SW_CKSUM_MODE
* In this mode, HW can not do checksum for special UDP port like
* 4789, 4790, 6081 for non-tunnel UDP packets and UDP tunnel