MSK_CSUM_FEATURES
ifp->if_hwassist = MSK_CSUM_FEATURES;
if (m->m_pkthdr.csum_flags & MSK_CSUM_FEATURES) {
if (m->m_pkthdr.csum_flags & MSK_CSUM_FEATURES) {
ifp->if_hwassist &= ~MSK_CSUM_FEATURES;
ifp->if_hwassist |= MSK_CSUM_FEATURES;
ifp->if_hwassist &= ~MSK_CSUM_FEATURES;
ifp->if_hwassist &= ~MSK_CSUM_FEATURES;