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Date: Fri, 3 May 2024 20:14:03 +0700
From: Bagas Sanjaya <bagasdotme@gmail.com>
To: Mina Almasry <almasrymina@google.com>, netdev@vger.kernel.org,
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Subject: Re: [RFC PATCH net-next v8 13/14] net: add devmem TCP documentation
Message-ID: <ZjTjG_INUM4G1Pf5@archie.me>
References: <20240403002053.2376017-1-almasrymina@google.com>
 <20240403002053.2376017-14-almasrymina@google.com>
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On Tue, Apr 02, 2024 at 05:20:50PM -0700, Mina Almasry wrote:
> +ncdevmem has a validation mode as well that expects a repeating pattern =
of
> +incoming data and validates it as such::
> +
> +	# On server:
> +	ncdevmem -s <server IP> -c <client IP> -f eth1 -d 3 -n 0000:06:00.0 -l \
> +		 -p 5201 -v 7
> +
> +	# On client:
> +	yes $(echo -e \\x01\\x02\\x03\\x04\\x05\\x06) | \
> +		tr \\n \\0 | head -c 5G | nc <server IP> 5201 -p 5201

What about splitting server and client usage?

---- >8 ----
diff --git a/Documentation/networking/devmem.rst b/Documentation/networking=
/devmem.rst
index e4e978fbcdbd5f..f32acfd62075d2 100644
--- a/Documentation/networking/devmem.rst
+++ b/Documentation/networking/devmem.rst
@@ -245,12 +245,14 @@ To run ncdevmem, you need to run it on a server on th=
e machine under test, and
 you need to run netcat on a peer to provide the TX data.
=20
 ncdevmem has a validation mode as well that expects a repeating pattern of
-incoming data and validates it as such::
+incoming data and validates it as such. For example, you can launch
+ncdevmem on the server by::
=20
-	# On server:
 	ncdevmem -s <server IP> -c <client IP> -f eth1 -d 3 -n 0000:06:00.0 -l \
 		 -p 5201 -v 7
=20
-	# On client:
+On client side, use regular netcat to send TX data to ncdevmem process
+on the server::
+
 	yes $(echo -e \\x01\\x02\\x03\\x04\\x05\\x06) | \
 		tr \\n \\0 | head -c 5G | nc <server IP> 5201 -p 5201

Thanks.

--=20
An old man doll... just what I always wanted! - Clara

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