[PATCH net-next] Documentation: Describe net.ipv4.tcp_reflect_tos.

[PATCH net-next] Documentation: Describe net.ipv4.tcp_reflect_tos.

[Guillaume Nault]

The tcp_reflect_tos option was introduced in Linux 5.10 but was still
undocumented.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
---
 Documentation/networking/ip-sysctl.rst | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index 5879ef3bc2cb..70f009f75e74 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -636,6 +636,16 @@ tcp_recovery - INTEGER
 
 	Default: 0x1
 
+tcp_reflect_tos - BOOLEAN
+	For listening sockets, reuse the DSCP value of the initial SYN message
+	for outgoing packets. This allows to have both directions of a TCP
+	stream to use the same DSCP value, assuming DSCP remains unchanged for
+	the lifetime of the connection.
+
+	This options affects both IPv4 and IPv6.
+
+	Default: 0 (disabled)
+
 tcp_reordering - INTEGER
 	Initial reordering level of packets in a TCP stream.
 	TCP stack can then dynamically adjust flow reordering level
-- 
2.21.3

Re: [PATCH net-next] Documentation: Describe net.ipv4.tcp_reflect_tos.

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller <davem@davemloft.net>:

On Wed, 27 Jul 2022 13:18:21 +0200 you wrote:
> The tcp_reflect_tos option was introduced in Linux 5.10 but was still
> undocumented.
> 
> Signed-off-by: Guillaume Nault <gnault@redhat.com>
> ---
>  Documentation/networking/ip-sysctl.rst | 10 ++++++++++
>  1 file changed, 10 insertions(+)

Here is the summary with links:
  - [net-next] Documentation: Describe net.ipv4.tcp_reflect_tos.
    https://git.kernel.org/netdev/net-next/c/1c7249e4af8e

You are awesome, thank you!
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