[PATCH] ethdev: document that stats reset APIs are not thread-safe

[Stephen Hemminger]

On Mon, 29 Apr 2024 08:20:13 +0200
Morten Brørup <mb at smartsharesystems.com> wrote:

> > turn talk the control plane, which in turn would talk to the data plane
> > (including <rte_ethdev.h>).
> > 
> > Either the control plane or the O&M layer could keep track of a reset
> > offset. Doesn't have to be on the PMD level.  
> 
> Exactly.
> 
> Snapshotting the "reset" offset in the control plane has many advantages.
> 
> Let's promote that design pattern, rather than trying to work around different quirks required by different drivers.
> 


The other thing that can help in software drivers is keeping per-queue stats.