265 	struct ip_tunnel *tunnel;  in erspan_rcv()  local
286 	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex,  in erspan_rcv()
290 	if (tunnel) {  in erspan_rcv()
304 		if (tunnel->collect_md) {  in erspan_rcv()
331 		ip_tunnel_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in erspan_rcv()
346 	struct ip_tunnel *tunnel;  in __ipgre_rcv()  local
349 	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, tpi->flags,  in __ipgre_rcv()
352 	if (tunnel) {  in __ipgre_rcv()
357 		if (tunnel->dev->type != ARPHRD_NONE)  in __ipgre_rcv()
361 		if (tunnel->collect_md) {  in __ipgre_rcv()
372 		ip_tunnel_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);  in __ipgre_rcv()
444 	struct ip_tunnel *tunnel = netdev_priv(dev);  in __gre_xmit()  local
446 	if (tunnel->parms.o_flags & TUNNEL_SEQ)  in __gre_xmit()
447 		tunnel->o_seqno++;  in __gre_xmit()
450 	gre_build_header(skb, tunnel->tun_hlen,  in __gre_xmit()
451 			 tunnel->parms.o_flags, proto, tunnel->parms.o_key,  in __gre_xmit()
452 			 htonl(tunnel->o_seqno));  in __gre_xmit()
530 	struct ip_tunnel *tunnel = netdev_priv(dev);  in gre_fb_xmit()  local
558 			 (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++) : 0);  in gre_fb_xmit()
576 	struct ip_tunnel *tunnel = netdev_priv(dev);  in erspan_fb_xmit()  local
641 			 htons(ETH_P_ERSPAN), 0, htonl(tunnel->o_seqno++));  in erspan_fb_xmit()
677 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ipgre_xmit()  local
680 	if (tunnel->collect_md) {  in ipgre_xmit()
688 				      (tunnel->hlen + sizeof(struct iphdr))))  in ipgre_xmit()
696 		skb_pull(skb, tunnel->hlen + sizeof(struct iphdr));  in ipgre_xmit()
702 		tnl_params = &tunnel->parms.iph;  in ipgre_xmit()
705 	if (gre_handle_offloads(skb, !!(tunnel->parms.o_flags & TUNNEL_CSUM)))  in ipgre_xmit()
720 	struct ip_tunnel *tunnel = netdev_priv(dev);  in erspan_xmit()  local
723 	if (tunnel->collect_md) {  in erspan_xmit()
740 	if (tunnel->erspan_ver == 1)  in erspan_xmit()
741 		erspan_build_header(skb, ntohl(tunnel->parms.o_key),  in erspan_xmit()
742 				    tunnel->index,  in erspan_xmit()
744 	else if (tunnel->erspan_ver == 2)  in erspan_xmit()
745 		erspan_build_header_v2(skb, ntohl(tunnel->parms.o_key),  in erspan_xmit()
746 				       tunnel->dir, tunnel->hwid,  in erspan_xmit()
751 	tunnel->parms.o_flags &= ~TUNNEL_KEY;  in erspan_xmit()
752 	__gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_ERSPAN));  in erspan_xmit()
764 	struct ip_tunnel *tunnel = netdev_priv(dev);  in gre_tap_xmit()  local
766 	if (tunnel->collect_md) {  in gre_tap_xmit()
771 	if (gre_handle_offloads(skb, !!(tunnel->parms.o_flags & TUNNEL_CSUM)))  in gre_tap_xmit()
777 	__gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_TEB));  in gre_tap_xmit()
788 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ipgre_link_update()  local
791 	len = tunnel->tun_hlen;  in ipgre_link_update()
792 	tunnel->tun_hlen = gre_calc_hlen(tunnel->parms.o_flags);  in ipgre_link_update()
793 	len = tunnel->tun_hlen - len;  in ipgre_link_update()
794 	tunnel->hlen = tunnel->hlen + len;  in ipgre_link_update()
800 	if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) {  in ipgre_link_update()
801 		if (!(tunnel->parms.o_flags & TUNNEL_CSUM) ||  in ipgre_link_update()
802 		    tunnel->encap.type == TUNNEL_ENCAP_NONE) {  in ipgre_link_update()
992 	struct ip_tunnel *tunnel;  in __gre_tunnel_init()  local
994 	tunnel = netdev_priv(dev);  in __gre_tunnel_init()
995 	tunnel->tun_hlen = gre_calc_hlen(tunnel->parms.o_flags);  in __gre_tunnel_init()
996 	tunnel->parms.iph.protocol = IPPROTO_GRE;  in __gre_tunnel_init()
998 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen;  in __gre_tunnel_init()
1003 	if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) {  in __gre_tunnel_init()
1008 		if (!(tunnel->parms.o_flags & TUNNEL_CSUM) ||  in __gre_tunnel_init()
1009 		    (tunnel->encap.type == TUNNEL_ENCAP_NONE)) {  in __gre_tunnel_init()
1023 	struct ip_tunnel *tunnel = netdev_priv(dev);  in ipgre_tunnel_init()  local
1024 	struct iphdr *iph = &tunnel->parms.iph;  in ipgre_tunnel_init()
1035 	if (iph->daddr && !tunnel->collect_md) {  in ipgre_tunnel_init()
1044 	} else if (!tunnel->collect_md) {  in ipgre_tunnel_init()
1308 	struct ip_tunnel *tunnel = netdev_priv(dev);  in erspan_tunnel_init()  local
1310 	tunnel->tun_hlen = 8;  in erspan_tunnel_init()
1311 	tunnel->parms.iph.protocol = IPPROTO_GRE;  in erspan_tunnel_init()
1312 	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen +  in erspan_tunnel_init()
1313 		       erspan_hdr_len(tunnel->erspan_ver);  in erspan_tunnel_init()