4044 			struct iphdr *ip;  in s2io_xmit()  local
4046 			ip = ip_hdr(skb);  in s2io_xmit()
4048 			if (!ip_is_fragment(ip)) {  in s2io_xmit()
4049 				th = (struct tcphdr *)(((unsigned char *)ip) +  in s2io_xmit()
4050 						       ip->ihl*4);  in s2io_xmit()
4052 				if (ip->protocol == IPPROTO_TCP) {  in s2io_xmit()
4059 				} else if (ip->protocol == IPPROTO_UDP) {  in s2io_xmit()
8164 static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,  in check_L2_lro_capable()  argument
8193 	*ip = (struct iphdr *)(buffer + ip_off);  in check_L2_lro_capable()
8194 	ip_len = (u8)((*ip)->ihl);  in check_L2_lro_capable()
8196 	*tcp = (struct tcphdr *)((unsigned long)*ip + ip_len);  in check_L2_lro_capable()
8201 static int check_for_socket_match(struct lro *lro, struct iphdr *ip,  in check_for_socket_match()  argument
8205 	if ((lro->iph->saddr != ip->saddr) ||  in check_for_socket_match()
8206 	    (lro->iph->daddr != ip->daddr) ||  in check_for_socket_match()
8213 static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)  in get_l4_pyld_length()  argument
8215 	return ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2);  in get_l4_pyld_length()
8219 				 struct iphdr *ip, struct tcphdr *tcp,  in initiate_new_session()  argument
8224 	lro->iph = ip;  in initiate_new_session()
8229 	lro->total_len = ntohs(ip->tot_len);  in initiate_new_session()
8248 	struct iphdr *ip = lro->iph;  in update_L3L4_header()  local
8255 	csum_replace2(&ip->check, ip->tot_len, htons(lro->total_len));  in update_L3L4_header()
8256 	ip->tot_len = htons(lro->total_len);  in update_L3L4_header()
8275 static void aggregate_new_rx(struct lro *lro, struct iphdr *ip,  in aggregate_new_rx()  argument
8297 static int verify_l3_l4_lro_capable(struct lro *l_lro, struct iphdr *ip,  in verify_l3_l4_lro_capable()  argument
8309 	if (ip->ihl != 5) /* IP has options */  in verify_l3_l4_lro_capable()
8313 	if (INET_ECN_is_ce(ipv4_get_dsfield(ip)))  in verify_l3_l4_lro_capable()
8359 	struct iphdr *ip;  in s2io_club_tcp_session()  local
8365 	ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,  in s2io_club_tcp_session()
8370 	DBG_PRINT(INFO_DBG, "IP Saddr: %x Daddr: %x\n", ip->saddr, ip->daddr);  in s2io_club_tcp_session()
8374 	*tcp_len = get_l4_pyld_length(ip, tcph);  in s2io_club_tcp_session()
8378 			if (check_for_socket_match(l_lro, ip, tcph))  in s2io_club_tcp_session()
8395 			if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,  in s2io_club_tcp_session()
8410 		if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len))  in s2io_club_tcp_session()
8432 		initiate_new_session(*lro, buffer, ip, tcph, *tcp_len,  in s2io_club_tcp_session()
8439 		aggregate_new_rx(*lro, ip, tcph, *tcp_len);  in s2io_club_tcp_session()