68 static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
1060 				 unsigned int mss_now)  in tcp_set_skb_tso_segs()  argument
1067 	if (skb->len <= mss_now || skb->ip_summed == CHECKSUM_NONE) {  in tcp_set_skb_tso_segs()
1075 		tcp_skb_pcount_set(skb, DIV_ROUND_UP(skb->len, mss_now));  in tcp_set_skb_tso_segs()
1076 		shinfo->gso_size = mss_now;  in tcp_set_skb_tso_segs()
1147 		 unsigned int mss_now, gfp_t gfp)  in tcp_fragment()  argument
1209 	tcp_set_skb_tso_segs(sk, skb, mss_now);  in tcp_fragment()
1210 	tcp_set_skb_tso_segs(sk, buff, mss_now);  in tcp_fragment()
1300 	int mss_now;  in __tcp_mtu_to_mss()  local
1305 	mss_now = pmtu - icsk->icsk_af_ops->net_header_len - sizeof(struct tcphdr);  in __tcp_mtu_to_mss()
1312 			mss_now -= icsk->icsk_af_ops->net_frag_header_len;  in __tcp_mtu_to_mss()
1316 	if (mss_now > tp->rx_opt.mss_clamp)  in __tcp_mtu_to_mss()
1317 		mss_now = tp->rx_opt.mss_clamp;  in __tcp_mtu_to_mss()
1320 	mss_now -= icsk->icsk_ext_hdr_len;  in __tcp_mtu_to_mss()
1323 	if (mss_now < 48)  in __tcp_mtu_to_mss()
1324 		mss_now = 48;  in __tcp_mtu_to_mss()
1325 	return mss_now;  in __tcp_mtu_to_mss()
1401 	int mss_now;  in tcp_sync_mss()  local
1406 	mss_now = tcp_mtu_to_mss(sk, pmtu);  in tcp_sync_mss()
1407 	mss_now = tcp_bound_to_half_wnd(tp, mss_now);  in tcp_sync_mss()
1412 		mss_now = min(mss_now, tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_low));  in tcp_sync_mss()
1413 	tp->mss_cache = mss_now;  in tcp_sync_mss()
1415 	return mss_now;  in tcp_sync_mss()
1426 	u32 mss_now;  in tcp_current_mss()  local
1431 	mss_now = tp->mss_cache;  in tcp_current_mss()
1436 			mss_now = tcp_sync_mss(sk, mtu);  in tcp_current_mss()
1447 		mss_now -= delta;  in tcp_current_mss()
1450 	return mss_now;  in tcp_current_mss()
1519 static void tcp_minshall_update(struct tcp_sock *tp, unsigned int mss_now,  in tcp_minshall_update()  argument
1522 	if (skb->len < tcp_skb_pcount(skb) * mss_now)  in tcp_minshall_update()
1544 static u32 tcp_tso_autosize(const struct sock *sk, unsigned int mss_now)  in tcp_tso_autosize()  argument
1556 	segs = max_t(u32, bytes / mss_now, sysctl_tcp_min_tso_segs);  in tcp_tso_autosize()
1564 					unsigned int mss_now,  in tcp_mss_split_point()  argument
1572 	max_len = mss_now * max_segs;  in tcp_mss_split_point()
1582 	partial = needed % mss_now;  in tcp_mss_split_point()
1623 			     unsigned int mss_now)  in tcp_init_tso_segs()  argument
1627 	if (!tso_segs || (tso_segs > 1 && tcp_skb_mss(skb) != mss_now)) {  in tcp_init_tso_segs()
1628 		tcp_set_skb_tso_segs(sk, skb, mss_now);  in tcp_init_tso_segs()
1715 			unsigned int mss_now, gfp_t gfp)  in tso_fragment()  argument
1723 		return tcp_fragment(sk, skb, len, mss_now, gfp);  in tso_fragment()
1752 	tcp_set_skb_tso_segs(sk, skb, mss_now);  in tso_fragment()
1753 	tcp_set_skb_tso_segs(sk, buff, mss_now);  in tso_fragment()
1890 	int mss_now;  in tcp_mtu_probe()  local
1908 	mss_now = tcp_current_mss(sk);  in tcp_mtu_probe()
1987 				tcp_set_skb_tso_segs(sk, skb, mss_now);  in tcp_mtu_probe()
2032 static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,  in tcp_write_xmit()  argument
2055 	max_segs = tcp_tso_autosize(sk, mss_now);  in tcp_write_xmit()
2059 		tso_segs = tcp_init_tso_segs(sk, skb, mss_now);  in tcp_write_xmit()
2078 		if (unlikely(!tcp_snd_wnd_test(tp, skb, mss_now)))  in tcp_write_xmit()
2082 			if (unlikely(!tcp_nagle_test(tp, skb, mss_now,  in tcp_write_xmit()
2093 		limit = mss_now;  in tcp_write_xmit()
2095 			limit = tcp_mss_split_point(sk, skb, mss_now,  in tcp_write_xmit()
2102 		    unlikely(tso_fragment(sk, skb, limit, mss_now, gfp)))  in tcp_write_xmit()
2138 		tcp_minshall_update(tp, mss_now, skb);  in tcp_write_xmit()
2312 void tcp_push_one(struct sock *sk, unsigned int mss_now)  in tcp_push_one()  argument
2316 	BUG_ON(!skb || skb->len < mss_now);  in tcp_push_one()
2318 	tcp_write_xmit(sk, mss_now, TCP_NAGLE_PUSH, 1, sk->sk_allocation);  in tcp_push_one()