bsd/netinet/tcp_lro.c

128 tcp_lro_matching_tuple(struct ip* ip_hdr, struct tcphdr *tcp_hdr, int *hash,
137 		tcp_hdr->th_sport, tcp_hdr->th_dport, (TCP_LRO_FLOW_MAP - 1));
144 	seqnum = tcp_hdr->th_seq;
145 	off = tcp_hdr->th_off << 2;
152 			(flow->lr_fport == tcp_hdr->th_sport) &&
153 			(flow->lr_lport == tcp_hdr->th_dport)) {
181 		if (SEQ_GT(tcp_hdr->th_ack, flow->lr_tcphdr->th_ack)) {
184 					__func__, tcp_hdr->th_ack,
203 tcp_lro_init_flow(int flow_id, struct ip* ip_hdr, struct tcphdr *tcp_hdr,
213 	flow->lr_fport = tcp_hdr->th_sport;
214 	flow->lr_lport = tcp_hdr->th_dport;
217 	flow->lr_seq = ntohl(tcp_hdr->th_seq) + payload_len;
341 			struct tcphdr *tcp_hdr, int payload_len,
395 	tcp_lro_init_flow(candidate_flow, ip_hdr, tcp_hdr, hash,
397 	tcp_lro_coalesce(candidate_flow, lro_mb, tcp_hdr, payload_len,
404 				struct tcphdr *tcp_hdr, int drop_hdrlen)
433 				(struct ipovly*)ip_hdr, tcp_hdr)) == NULL) {
446 	off = tcp_hdr->th_off << 2;
449 	optp = (u_char *)(tcp_hdr + 1);
461 			(tcp_hdr->th_flags & TH_SYN) == 0) {
478 	thflags = tcp_hdr->th_flags;
506 	retval = tcp_lro_matching_tuple(ip_hdr, tcp_hdr, &hash, &flow_id);
517 			tcp_lro_coalesce(flow_id, lro_mb, tcp_hdr, payload_len,
527 					ntohl(tcp_hdr->th_seq));
536 			lro_flow_list[flow_id].lr_seq = ntohl(tcp_hdr->th_seq) +
707 	struct tcphdr * tcp_hdr = NULL;
744 	tcp_hdr = (struct tcphdr *)((caddr_t)ip_hdr + hlen);
748 	off = tcp_hdr->th_off << 2;
757 	return (tcp_lro_process_pkt(m, ip_hdr, tcp_hdr, hlen + off));
849 tcp_start_coalescing(struct ip *ip_hdr, struct tcphdr *tcp_hdr, int tlen)
857 		tcp_hdr->th_sport, tcp_hdr->th_dport,
867 		    (lf->lr_fport == tcp_hdr->th_sport) &&
868 		    (lf->lr_lport == tcp_hdr->th_dport)) {
870 		    		(lf->lr_seq != (tcp_hdr->th_seq + tlen))) {
871 				lf->lr_seq = tcp_hdr->th_seq + tlen;
879 	HTONL(tcp_hdr->th_seq);
880 	HTONL(tcp_hdr->th_ack);
882 		tcp_lro_insert_flow(NULL, ip_hdr, tcp_hdr, tlen, 0, hash,
887 	NTOHL(tcp_hdr->th_seq);
888 	NTOHL(tcp_hdr->th_ack);
892 			tcp_hdr->th_sport, tcp_hdr->th_dport, tcp_hdr->th_seq);