Re: Flow Director vs. 5-tuple filters on a 10GbE Intel 82599 ES NIC

[Georgios Katsikas <katsikas.gp@gmail.com>]

This is a kind reminder to provide some feedback on this topic.

Best regards,
Georgios

On Tue, Dec 11, 2018 at 4:31 PM Tom Barbette <barbette@kth.se> wrote:

> ​CC-ing maintainers.
>
>
> ------------------------------
> *De :* Georgios Katsikas <katsikas.gp@gmail.com>
> *Envoyé :* mardi 4 décembre 2018 11:41
> *À :* dev@dpdk.org
> *Cc :* Tom Barbette
> *Objet :* Flow Director vs. 5-tuple filters on a 10GbE Intel 82599 ES NIC
>
> Dear all,
>
> I am performing rule installation/deletion benchmarks on a dual port 10
> GbE Intel 82599 ES NIC using DPDK 18.11.
> The benchmark installs increasing number of rules (5 to 8000), measures
> the rule installation rate and latency and then deletes the rules
> (measuring again the rule deletion rate/latency).
> The rule sets comprise of rules with exact matches (no masks involved) as
> follows:
>
> *Simple rule*
> flow create 0 ingress pattern eth / ipv4 dst is 129.72.224.94 / end
> actions queue index 0 / end
>
> *More complicated rule*
> flow create 0 ingress pattern eth / ipv4 dst is 46.54.254.68 src is
> 49.75.141.195 proto is 17 / udp dst is 26561 src is 7242 / end actions
> queue index 0 / end
>
> No matter how simple or complicated the rules are, I am not able to
> install more than 128 rules on this NIC.
>
> *Here comes my question*
>
> According to the specification
> <https://www.intel.com/content/www/us/en/embedded/products/networking/82599-10-gbe-controller-datasheet.html>,
> this NIC can accommodate up to 128 5-tuple filters, which very well agrees
> with my observation above.
> However, the same document states that this NIC can also accommodate up to
> 8000 Flow Director filters.
> What is the practical difference between a 5-tuple and a Flow Director
> rule in this case? How can I exploit these 8k filters using DPDK 18.11?
>
> Thanks in advance,
> Georgios
>
>
>
>