The mac_hcksum_get() Function Flags

The flags argument of mac_hcksum_get() is a combination of the following values:

HCK_FULLCKSUM

Compute the full checksum for this packet.

HCK_FULLCKSUM_OK

The full checksum was verified in hardware and is correct.

HCK_PARTIALCKSUM

Compute the partial 1's complement checksum based on other parameters passed to mac_hcksum_get(). HCK_PARTIALCKSUM is mutually exclusive with HCK_FULLCKSUM.

HCK_IPV4_HDRCKSUM

Compute the IP header checksum.

HCK_IPV4_HDRCKSUM_OK

The IP header checksum was verified in hardware and is correct.