RSS on L2TP, Teredo, PPPoE Tunnels

[Tarun Badnora]

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:

a.       This is not supported by adapter.

2.       testpmd> flow tunnel create  0 type "":

a.        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

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