66 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_event_new_data_sent()  local
76 	if (!prior_packets || icsk->icsk_pending == ICSK_TIME_LOSS_PROBE)  in tcp_event_new_data_sent()
159 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_event_data_sent()  local
170 	if (before(tp->lsndtime, icsk->icsk_ack.lrcvtime) &&  in tcp_event_data_sent()
171 	    (u32)(now - icsk->icsk_ack.lrcvtime) < icsk->icsk_ack.ato)  in tcp_event_data_sent()
1016 	const struct inet_connection_sock *icsk = inet_csk(sk);  in __tcp_transmit_skb()  local
1141 	icsk->icsk_af_ops->send_check(sk, skb);  in __tcp_transmit_skb()
1169 	err = icsk->icsk_af_ops->queue_xmit(sk, skb, &inet->cork.fl);  in __tcp_transmit_skb()
1462 	const struct inet_connection_sock *icsk = inet_csk(sk);  in __tcp_mtu_to_mss()  local
1468 	mss_now = pmtu - icsk->icsk_af_ops->net_header_len - sizeof(struct tcphdr);  in __tcp_mtu_to_mss()
1471 	if (icsk->icsk_af_ops->net_frag_header_len) {  in __tcp_mtu_to_mss()
1475 			mss_now -= icsk->icsk_af_ops->net_frag_header_len;  in __tcp_mtu_to_mss()
1483 	mss_now -= icsk->icsk_ext_hdr_len;  in __tcp_mtu_to_mss()
1502 	const struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_mss_to_mtu()  local
1507 	      icsk->icsk_ext_hdr_len +  in tcp_mss_to_mtu()
1508 	      icsk->icsk_af_ops->net_header_len;  in tcp_mss_to_mtu()
1511 	if (icsk->icsk_af_ops->net_frag_header_len) {  in tcp_mss_to_mtu()
1515 			mtu += icsk->icsk_af_ops->net_frag_header_len;  in tcp_mss_to_mtu()
1525 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_mtup_init()  local
1528 	icsk->icsk_mtup.enabled = net->ipv4.sysctl_tcp_mtu_probing > 1;  in tcp_mtup_init()
1529 	icsk->icsk_mtup.search_high = tp->rx_opt.mss_clamp + sizeof(struct tcphdr) +  in tcp_mtup_init()
1530 			       icsk->icsk_af_ops->net_header_len;  in tcp_mtup_init()
1531 	icsk->icsk_mtup.search_low = tcp_mss_to_mtu(sk, net->ipv4.sysctl_tcp_base_mss);  in tcp_mtup_init()
1532 	icsk->icsk_mtup.probe_size = 0;  in tcp_mtup_init()
1533 	if (icsk->icsk_mtup.enabled)  in tcp_mtup_init()
1534 		icsk->icsk_mtup.probe_timestamp = tcp_jiffies32;  in tcp_mtup_init()
1563 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_sync_mss()  local
1566 	if (icsk->icsk_mtup.search_high > pmtu)  in tcp_sync_mss()
1567 		icsk->icsk_mtup.search_high = pmtu;  in tcp_sync_mss()
1573 	icsk->icsk_pmtu_cookie = pmtu;  in tcp_sync_mss()
1574 	if (icsk->icsk_mtup.enabled)  in tcp_sync_mss()
1575 		mss_now = min(mss_now, tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_low));  in tcp_sync_mss()
1936 	const struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_tso_should_defer()  local
1943 	if (icsk->icsk_ca_state >= TCP_CA_Recovery)  in tcp_tso_should_defer()
2035 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_mtu_check_reprobe()  local
2042 	delta = tcp_jiffies32 - icsk->icsk_mtup.probe_timestamp;  in tcp_mtu_check_reprobe()
2047 		icsk->icsk_mtup.probe_size = 0;  in tcp_mtu_check_reprobe()
2048 		icsk->icsk_mtup.search_high = tp->rx_opt.mss_clamp +  in tcp_mtu_check_reprobe()
2050 			icsk->icsk_af_ops->net_header_len;  in tcp_mtu_check_reprobe()
2051 		icsk->icsk_mtup.search_low = tcp_mss_to_mtu(sk, mss);  in tcp_mtu_check_reprobe()
2054 		icsk->icsk_mtup.probe_timestamp = tcp_jiffies32;  in tcp_mtu_check_reprobe()
2087 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_mtu_probe()  local
2102 	if (likely(!icsk->icsk_mtup.enabled ||  in tcp_mtu_probe()
2103 		   icsk->icsk_mtup.probe_size ||  in tcp_mtu_probe()
2114 	probe_size = tcp_mtu_to_mss(sk, (icsk->icsk_mtup.search_high +  in tcp_mtu_probe()
2115 				    icsk->icsk_mtup.search_low) >> 1);  in tcp_mtu_probe()
2117 	interval = icsk->icsk_mtup.search_high - icsk->icsk_mtup.search_low;  in tcp_mtu_probe()
2122 	if (probe_size > tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_high) ||  in tcp_mtu_probe()
2215 		icsk->icsk_mtup.probe_size = tcp_mss_to_mtu(sk, nskb->len);  in tcp_mtu_probe()
2477 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_schedule_loss_probe()  local
2494 	    (icsk->icsk_ca_state != TCP_CA_Open &&  in tcp_schedule_loss_probe()
2495 	     icsk->icsk_ca_state != TCP_CA_CWR))  in tcp_schedule_loss_probe()
2687 	struct inet_connection_sock *icsk = inet_csk(sk);  in __tcp_select_window()  local
2695 	int mss = icsk->icsk_ack.rcv_mss;  in __tcp_select_window()
2707 		icsk->icsk_ack.quick = 0;  in __tcp_select_window()
2883 	struct inet_connection_sock *icsk = inet_csk(sk);  in __tcp_retransmit_skb()  local
2890 	if (icsk->icsk_mtup.probe_size)  in __tcp_retransmit_skb()
2891 		icsk->icsk_mtup.probe_size = 0;  in __tcp_retransmit_skb()
3028 	const struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_xmit_retransmit_queue()  local
3068 			if (icsk->icsk_ca_state != TCP_CA_Loss)  in tcp_xmit_retransmit_queue()
3089 		    icsk->icsk_pending != ICSK_TIME_REO_TIMEOUT)  in tcp_xmit_retransmit_queue()
3349 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_ca_dst_init()  local
3359 		module_put(icsk->icsk_ca_ops->owner);  in tcp_ca_dst_init()
3360 		icsk->icsk_ca_dst_locked = tcp_ca_dst_locked(dst);  in tcp_ca_dst_init()
3361 		icsk->icsk_ca_ops = ca;  in tcp_ca_dst_init()
3611 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_send_delayed_ack()  local
3612 	int ato = icsk->icsk_ack.ato;  in tcp_send_delayed_ack()
3620 		    (icsk->icsk_ack.pending & ICSK_ACK_PUSHED))  in tcp_send_delayed_ack()
3644 	if (icsk->icsk_ack.pending & ICSK_ACK_TIMER) {  in tcp_send_delayed_ack()
3648 		if (icsk->icsk_ack.blocked ||  in tcp_send_delayed_ack()
3649 		    time_before_eq(icsk->icsk_ack.timeout, jiffies + (ato >> 2))) {  in tcp_send_delayed_ack()
3654 		if (!time_before(timeout, icsk->icsk_ack.timeout))  in tcp_send_delayed_ack()
3655 			timeout = icsk->icsk_ack.timeout;  in tcp_send_delayed_ack()
3657 	icsk->icsk_ack.pending |= ICSK_ACK_SCHED | ICSK_ACK_TIMER;  in tcp_send_delayed_ack()
3658 	icsk->icsk_ack.timeout = timeout;  in tcp_send_delayed_ack()
3659 	sk_reset_timer(sk, &icsk->icsk_delack_timer, timeout);  in tcp_send_delayed_ack()
3797 	struct inet_connection_sock *icsk = inet_csk(sk);  in tcp_send_probe0()  local
3807 		icsk->icsk_probes_out = 0;  in tcp_send_probe0()
3808 		icsk->icsk_backoff = 0;  in tcp_send_probe0()
3812 	icsk->icsk_probes_out++;  in tcp_send_probe0()
3814 		if (icsk->icsk_backoff < net->ipv4.sysctl_tcp_retries2)  in tcp_send_probe0()
3815 			icsk->icsk_backoff++;  in tcp_send_probe0()