netdev - [PATCH net-next 5/6] docs: networking: Update connection tracking offload sysctl parameters

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Date:   Wed, 23 Jun 2021 19:03:00 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org
Subject: [PATCH net-next 5/6] docs: networking: Update connection tracking offload sysctl parameters

From: Oz Shlomo <ozsh@...dia.com>

Document the following connection offload configuration parameters:
- nf_flowtable_tcp_timeout
- nf_flowtable_tcp_pickup
- nf_flowtable_udp_timeout
- nf_flowtable_udp_pickup

Signed-off-by: Oz Shlomo <ozsh@...dia.com>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 .../networking/nf_conntrack-sysctl.rst        | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/Documentation/networking/nf_conntrack-sysctl.rst b/Documentation/networking/nf_conntrack-sysctl.rst
index 11a9b76786cb..0467b30e4abe 100644
--- a/Documentation/networking/nf_conntrack-sysctl.rst
+++ b/Documentation/networking/nf_conntrack-sysctl.rst
@@ -177,3 +177,27 @@ nf_conntrack_gre_timeout_stream - INTEGER (seconds)
 
 	This extended timeout will be used in case there is an GRE stream
 	detected.
+
+nf_flowtable_tcp_timeout - INTEGER (seconds)
+        default 30
+
+        Control offload timeout for tcp connections.
+        TCP connections may be offloaded from nf conntrack to nf flow table.
+        Once aged, the connection is returned to nf conntrack with tcp pickup timeout.
+
+nf_flowtable_tcp_pickup - INTEGER (seconds)
+        default 120
+
+        TCP connection timeout after being aged from nf flow table offload.
+
+nf_flowtable_udp_timeout - INTEGER (seconds)
+        default 30
+
+        Control offload timeout for udp connections.
+        UDP connections may be offloaded from nf conntrack to nf flow table.
+        Once aged, the connection is returned to nf conntrack with udp pickup timeout.
+
+nf_flowtable_udp_pickup - INTEGER (seconds)
+        default 30
+
+        UDP connection timeout after being aged from nf flow table offload.
-- 
2.30.2