Hello,

The Flex item API allows to extend network protocols provided in port hardware.
The API allows DPDK application build a custom network protocol parser after providing the protocol description.
You can create a Flex item for network protocols you’ve mentioned over mlx5 BlueField-2 ports.

Regards,
Gregory

From: Tarun Badnora <tarun.badnora@clear-trail.com>
Sent: Thursday, 10 November 2022 16:48
To: dev@dpdk.org
Subject: RSS on L2TP, Teredo, PPPoE Tunnels

External email: Use caution opening links or attachments


Hello DPDK Team,

Hope you guys are doing great !!

We are developing application with dpdk 22.03 & Mellanox Connectx-6 adapter,
Want to use IP-Port tuples (Inner in case of tunnels) to RSS traffic to multiple queues.

We need to handle L2TPv2/3, Teredo, PPPoE etc, but adapter have limited tunnels support.

Is there a way/possibility in DPDK to support mentioned or define user specific tunnels & achieve RSS on inner tuples ?

From documentation, we came across these approaches:

  1.  Rte flow Flex item:

     *   This is not supported by adapter.

  1.  testpmd> flow tunnel create  0 type “”:

     *    Not getting documentation to check.


Please suggest.

Environment:

  *   OS: Ubuntu 20.04
  *   Driver: MLNX_OFED_LINUX-5.5-1.0.3.2
  *   Firmware: 22.32.2004

Regards,
Tarun Badnora