tcp: remove Appropriate Byte Count support

TCP Appropriate Byte Count was added by me, but later disabled.
There is no point in maintaining it since it is a potential source
of bugs and Linux already implements other better window protection
heuristics.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 11 deletions

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 19ac1802bfd4..dc2dc87d2557 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -130,17 +130,6 @@ somaxconn - INTEGER
         Defaults to 128.  See also tcp_max_syn_backlog for additional tuning
         for TCP sockets.
 
-tcp_abc - INTEGER
-        Controls Appropriate Byte Count (ABC) defined in RFC3465.
-        ABC is a way of increasing congestion window (cwnd) more slowly
-        in response to partial acknowledgments.
-        Possible values are:
-                0 increase cwnd once per acknowledgment (no ABC)
-                1 increase cwnd once per acknowledgment of full sized segment
-                2 allow increase cwnd by two if acknowledgment is
-                  of two segments to compensate for delayed acknowledgments.
-        Default: 0 (off)
-
 tcp_abort_on_overflow - BOOLEAN
         If listening service is too slow to accept new connections,
         reset them. Default state is FALSE. It means that if overflow