[RFC] ethdev: introduce entropy calculation

[Dariusz Sosnowski]

> Subject: [RFC] ethdev: introduce entropy calculation
> 
> When offloading rules with the encap action, the HW may calculate entropy
> based on the encap protocol.
> Each HW can implement a different algorithm.
> 
> When the application receives packets that should have been encaped by the
> HW, but didn't reach this stage yet (for example TCP SYN packets), then when
> encap is done in SW, application must apply the same entropy calculation
> algorithm.
> 
> Using the new API application can request the PMD to calculate the value as if
> the packet passed in the HW.
> 
> Signed-off-by: Ori Kam <orika at nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnowski at nvidia.com>

Best regards,
Dariusz Sosnowski