[dpdk-dev] [PATCH] net/ixgbe: add security statistics

Nicolau, Radu radu.nicolau at intel.com
Mon Sep 9 13:00:52 CEST 2019


Hi,

On 9/8/2019 12:45 PM, Ananyev, Konstantin wrote:
> Hi Radu,
>
>> Update IXGBE PMD with support for IPsec statistics.
> The proposed approach - have a new hash table per device,
> plus parse  each packet on RX and TX and do hash lookup
> seems way too heavy to put it into PMD.

It is indeed heavy, but it's disabled by default and it only uses the 
heavy section when the app is enabling per-session statistics

> Wonder why we need to do that?
> If HW doesn't provide such statistic info, why not to leave it
> to the upper layer to collect/maintain?
> In many cases SW will already have that infrastructure
> and I don't see to put all these heavy-weight operations
> into ixgbe rx/tx path.

The reason is to use the rte_security API consistently and take 
advantage of the hardware backed statistics when they are available.

>
> Konstantin


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