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Diffstat (limited to 'include/net/tcp.h')
-rw-r--r--include/net/tcp.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 3e4b33e36602..4fee0424af7e 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -346,8 +346,6 @@ static inline void tcp_dec_quickack_mode(struct sock *sk,
}
}
-extern void tcp_enter_quickack_mode(struct sock *sk);
-
#define TCP_ECN_OK 1
#define TCP_ECN_QUEUE_CWR 2
#define TCP_ECN_DEMAND_CWR 4
@@ -803,6 +801,15 @@ static inline __u32 tcp_current_ssthresh(const struct sock *sk)
/* Use define here intentionally to get WARN_ON location shown at the caller */
#define tcp_verify_left_out(tp) WARN_ON(tcp_left_out(tp) > tp->packets_out)
+/*
+ * Convert RFC 3390 larger initial window into an equivalent number of packets.
+ * This is based on the numbers specified in RFC 5681, 3.1.
+ */
+static inline u32 rfc3390_bytes_to_packets(const u32 smss)
+{
+ return smss <= 1095 ? 4 : (smss > 2190 ? 2 : 3);
+}
+
extern void tcp_enter_cwr(struct sock *sk, const int set_ssthresh);
extern __u32 tcp_init_cwnd(struct tcp_sock *tp, struct dst_entry *dst);