[dpdk-users] How to find an IPv4 and IPv6 hash function

Pavel Chuprikov pschuprikov at gmail.com
Tue Oct 2 19:32:28 CEST 2018


Hi,

The l3fwd application [1] might serve as a starting point and in particular
l3fwd_em.c [2].

[1]: http://doc.dpdk.org/guides/sample_app_ug/l3_forward.html
[2]: http://doc.dpdk.org/api/examples_2l3fwd_2l3fwd_em_8c-example.html

Hope it helps,
Pavel

пн, 1 окт. 2018 г. в 14:37, Ali Volkan Atli <Volkan.Atli at argela.com.tr>:

> Dear DPDK users
>
> I am trying to write a code to monitor user data traffic by using DPDK.
> Each user has one IP address which can be IPv4 or IPv6. Therefore I'm
> thinking of creating two hash tables for IPv4 and IPv6. The key of these
> hash tables will be an IPv4 or IPv6 address and the data of these hash
> tables will be user traffic (uplink and downlink)
>
> First, is there any API, example etc.. to calculate IPv4 hash and IPv6
> hash on DPDK library? If not, does anyone know where I might find any paper
> or writing how I can calculate IPv4 and IPv6 hash? Also is there a more
> appropriate data structure than the hash table for the problem?
>
> Thanks in advance.
>
> - Volkan


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