[PATCH] net/af_packet: fix statistics

[Stephen Hemminger]

On Wed, 1 May 2024 17:25:59 +0100
Ferruh Yigit <ferruh.yigit at amd.com> wrote:

> >  - Remove the tx_error counter since it was not correct.
> >    When transmit ring is full it is not an error and
> >    the driver correctly returns only the number sent.
> >   
> 
> nack
> Transmit full is not only return case here.
> There are actual errors continue to process relying this error calculation.
> Also there are error cases like interface down.
> Those error cases should be handled individually if we remove this.
> I suggest split this change to separate patch.

I see multiple drivers have copy/pasted same code and consider
transmit full as an error. It is not.

There should be a new statistic at ethdev layer that does record
transmit full, and make it across all drivers, but that would have
to wait for ABI change.