dev/re/if_re.c

2670 re_encap(struct rl_softc *sc, struct mbuf **m_head)
2683 	M_ASSERTPKTHDR((*m_head));
2697 	    (*m_head)->m_pkthdr.len < RL_IP4CSUMTX_PADLEN &&
2698 	    ((*m_head)->m_pkthdr.csum_flags & CSUM_IP) != 0) {
2699 		padlen = RL_MIN_FRAMELEN - (*m_head)->m_pkthdr.len;
2700 		if (M_WRITABLE(*m_head) == 0) {
2702 			m_new = m_dup(*m_head, M_DONTWAIT);
2703 			m_freem(*m_head);
2705 				*m_head = NULL;
2708 			*m_head = m_new;
2710 		if ((*m_head)->m_next != NULL ||
2711 		    M_TRAILINGSPACE(*m_head) < padlen) {
2712 			m_new = m_defrag(*m_head, M_DONTWAIT);
2714 				m_freem(*m_head);
2715 				*m_head = NULL;
2719 			m_new = *m_head;
2728 		*m_head = m_new;
2734 	    *m_head, segs, &nsegs, BUS_DMA_NOWAIT);
2736 		m_new = m_collapse(*m_head, M_DONTWAIT, RL_NTXSEGS);
2738 			m_freem(*m_head);
2739 			*m_head = NULL;
2742 		*m_head = m_new;
2744 		    txd->tx_dmamap, *m_head, segs, &nsegs, BUS_DMA_NOWAIT);
2746 			m_freem(*m_head);
2747 			*m_head = NULL;
2753 		m_freem(*m_head);
2754 		*m_head = NULL;
2775 	if (((*m_head)->m_pkthdr.csum_flags & CSUM_TSO) != 0) {
2778 			vlanctl |= ((uint32_t)(*m_head)->m_pkthdr.tso_segsz <<
2782 			    ((uint32_t)(*m_head)->m_pkthdr.tso_segsz <<
2791 		if (((*m_head)->m_pkthdr.csum_flags & RE_CSUM_FEATURES) != 0) {
2794 				if (((*m_head)->m_pkthdr.csum_flags &
2797 				if (((*m_head)->m_pkthdr.csum_flags &
2802 				if (((*m_head)->m_pkthdr.csum_flags &
2805 				if (((*m_head)->m_pkthdr.csum_flags &
2817 	if ((*m_head)->m_flags & M_VLANTAG)
2818 		vlanctl |= bswap16((*m_head)->m_pkthdr.ether_vtag) |
2856 	txd_last->tx_m = *m_head;
2879 	struct mbuf		*m_head;
2905 		IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
2906 		if (m_head == NULL)
2909 		if (re_encap(sc, &m_head) != 0) {
2910 			if (m_head == NULL)
2912 			IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
2921 		ETHER_BPF_MTAP(ifp, m_head);