From fd4f2cead6983735a4e6283126b9276873d7ff09 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 12 Apr 2012 19:48:40 +0000 Subject: [PATCH] tcp: RFC6298 supersedes RFC2988bis Updates some comments to track RFC6298 Signed-off-by: Eric Dumazet Cc: H.K. Jerry Chu Cc: Tom Herbert Signed-off-by: David S. Miller --- include/net/tcp.h | 2 +- net/ipv4/inet_connection_sock.c | 2 +- net/ipv4/tcp_input.c | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/net/tcp.h b/include/net/tcp.h index f75a04d752cb..057f0168462e 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -123,7 +123,7 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo); #endif #define TCP_RTO_MAX ((unsigned)(120*HZ)) #define TCP_RTO_MIN ((unsigned)(HZ/5)) -#define TCP_TIMEOUT_INIT ((unsigned)(1*HZ)) /* RFC2988bis initial RTO value */ +#define TCP_TIMEOUT_INIT ((unsigned)(1*HZ)) /* RFC6298 2.1 initial RTO value */ #define TCP_TIMEOUT_FALLBACK ((unsigned)(3*HZ)) /* RFC 1122 initial RTO value, now * used as a fallback RTO for the * initial data transmission if no diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 19d66cefd7d3..c12396f2785f 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -514,7 +514,7 @@ void inet_csk_reqsk_queue_prune(struct sock *parent, /* Normally all the openreqs are young and become mature * (i.e. converted to established socket) for first timeout. - * If synack was not acknowledged for 3 seconds, it means + * If synack was not acknowledged for 1 second, it means * one of the following things: synack was lost, ack was lost, * rtt is high or nobody planned to ack (i.e. synflood). * When server is a bit loaded, queue is populated with old diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 9944c1d9a218..dc1e0be30b77 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -936,7 +936,7 @@ static void tcp_init_metrics(struct sock *sk) tcp_set_rto(sk); reset: if (tp->srtt == 0) { - /* RFC2988bis: We've failed to get a valid RTT sample from + /* RFC6298: 5.7 We've failed to get a valid RTT sample from * 3WHS. This is most likely due to retransmission, * including spurious one. Reset the RTO back to 3secs * from the more aggressive 1sec to avoid more spurious @@ -946,7 +946,7 @@ reset: inet_csk(sk)->icsk_rto = TCP_TIMEOUT_FALLBACK; } /* Cut cwnd down to 1 per RFC5681 if SYN or SYN-ACK has been - * retransmitted. In light of RFC2988bis' more aggressive 1sec + * retransmitted. In light of RFC6298 more aggressive 1sec * initRTO, we only reset cwnd when more than 1 SYN/SYN-ACK * retransmission has occurred. */ -- 2.20.1