EFX_TXQ_CKSUM_TCPUDP
(flags & EFX_TXQ_CKSUM_TCPUDP) ? 1 : 0,
(flags & EFX_TXQ_CKSUM_TCPUDP) ? 0 : 1,
(flags & EFX_TXQ_CKSUM_TCPUDP) ? 0 : 1);
flags = EFX_TXQ_CKSUM_IPV4 | EFX_TXQ_CKSUM_TCPUDP;