RE: [EXT] Re: [PATCH net-next] net: mvpp2: extend mib-fragments name to mib-fragments-err

From: Stefan Chulski
Date: Thu Jan 14 2021 - 11:16:48 EST


> > From: Stefan Chulski <stefanc@xxxxxxxxxxx>
> >
> > This patch doesn't change any functionality, but just extend MIB
> > counter register and ethtool-statistic names with "err".
> >
> > The counter MVPP2_MIB_FRAGMENTS_RCVD in fact is Error counter.
> > Extend REG name and appropriated ethtool statistic reg-name with the
> > ERR/err.
>
> > --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> > +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
> > @@ -1566,7 +1566,7 @@ static u32 mvpp2_read_index(struct mvpp2
> *priv, u32 index, u32 reg)
> > { MVPP2_MIB_FC_RCVD, "fc_received" },
> > { MVPP2_MIB_RX_FIFO_OVERRUN, "rx_fifo_overrun" },
> > { MVPP2_MIB_UNDERSIZE_RCVD, "undersize_received" },
> > - { MVPP2_MIB_FRAGMENTS_RCVD, "fragments_received" },
> > + { MVPP2_MIB_FRAGMENTS_ERR_RCVD, "fragments_err_received" },
>
> Hi Stefan
>
> I suspect this is now ABI and you cannot change it. You at least need to argue
> why it is not ABI.
>
> Andrew

Hi Andrew,

I not familiar with ABI concept. Does this mean we cannot change, fix or extend driver ethtool counters?

Thanks,
Stefan.