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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jonathan Corbet , Richard Henderson , Ivan Kokshaysky , Matt Turner , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Andreas Larsson , Jesper Dangaard Brouer , Ilias Apalodimas , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Arnd Bergmann , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Steffen Klassert , Herbert Xu , David Ahern , Willem de Bruijn , Shuah Khan , Sumit Semwal , Christian =?utf-8?B?S8O2bmln?= , Amritha Nambiar , Maciej Fijalkowski , Alexander Mikhalitsyn , Kaiyuan Zhang , Christian Brauner , Simon Horman , David Howells , Florian Westphal , Yunsheng Lin , Kuniyuki Iwashima , Jens Axboe , Arseniy Krasnov , Aleksander Lobakin , Michael Lass , Jiri Pirko , Sebastian Andrzej Siewior , Lorenzo Bianconi , Richard Gobert , Sridhar Samudrala , Xuan Zhuo , Johannes Berg , Abel Wu , Breno Leitao , Pavel Begunkov , David Wei , Jason Gunthorpe , Shailend Chand , Harshitha Ramamurthy , Shakeel Butt , Jeroen de Borst , Praveen Kaligineedi Subject: Re: [RFC PATCH net-next v8 13/14] net: add devmem TCP documentation Message-ID: References: <20240403002053.2376017-1-almasrymina@google.com> <20240403002053.2376017-14-almasrymina@google.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="p760D9CQLIFGzr8t" Content-Disposition: inline In-Reply-To: <20240403002053.2376017-14-almasrymina@google.com> --p760D9CQLIFGzr8t Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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 -c -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 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 -c -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 5201 -p 5201 Thanks. --=20 An old man doll... just what I always wanted! - Clara --p760D9CQLIFGzr8t Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSSYQ6Cy7oyFNCHrUH2uYlJVVFOowUCZjTjFwAKCRD2uYlJVVFO o9RPAQCNza/o9eilURPtLMgckHLWGXSLgl+m05JS4n+5eQOBfAEAuaR+vADZuSKC PnV18jn47Aqz1SmrD+MDjjeFy4rw0gM= =E6BN -----END PGP SIGNATURE----- --p760D9CQLIFGzr8t--