[RFC v2] net/af_packet: make stats reset reliable

[Stephen Hemminger]

On Tue, 7 May 2024 17:54:18 +0100
Ferruh Yigit <ferruh.yigit at amd.com> wrote:

> On 5/7/2024 5:00 PM, Morten Brørup wrote:
> >> From: Stephen Hemminger [mailto:stephen at networkplumber.org]
> >> Sent: Tuesday, 7 May 2024 16.51  
> >   
> >> I would prefer that the SW statistics be handled generically by ethdev
> >> layers and used by all such drivers.  
> > 
> > I agree.
> > 
> > Please note that maintaining counters in the ethdev layer might cause more cache misses than maintaining them in the hot parts of the individual drivers' data structures, so it's not all that simple. ;-)
> > 
> > Until then, let's find a short term solution, viable to implement across all software NIC drivers without API/ABI breakage.
> >   
> 
> I am against ehtdev layer being aware of SW drivers and behave
> differently for them.
> This is dev_ops and can be managed per driver. We can add helper
> functions for drivers if there is a common pattern.

It is more about having a set of helper routines for SW only drivers.
I have something in progress for this.