Re: [RFC Patch net-next 3/5] net: dsa: microchip: add eth mac grouping for ethtool statistics
From: Rakesh.Sankaranarayanan
Date: Fri Dec 02 2022 - 06:55:48 EST
Hi Jakub,
Thanks for the review comment.
On Thu, 2022-12-01 at 20:02 -0800, Jakub Kicinski wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
>
> On Wed, 30 Nov 2022 18:59:00 +0530 Rakesh Sankaranarayanan wrote:
> > + mac_stats->FramesTransmittedOK = ctr[ksz9477_tx_mcast] +
> > + ctr[ksz9477_tx_bcast] +
> > + ctr[ksz9477_tx_ucast] +
> > + ctr[ksz9477_tx_pause];
>
> do control frames count towards FramesTransmittedOK?
> Please check the standard I don't recall.
>
Yeah, I will check with the documentation.
> > + mac_stats->SingleCollisionFrames =
> > ctr[ksz9477_tx_single_col];
> > + mac_stats->MultipleCollisionFrames =
> > ctr[ksz9477_tx_mult_col];
> > + mac_stats->FramesReceivedOK = ctr[ksz9477_rx_mcast] +
> > + ctr[ksz9477_rx_bcast] +
> > + ctr[ksz9477_rx_ucast] +
> > + ctr[ksz9477_rx_pause];
> > + mac_stats->FrameCheckSequenceErrors =
> > ctr[ksz9477_rx_crc_err];
> > + mac_stats->AlignmentErrors = ctr[ksz9477_rx_align_err];
> > + mac_stats->OctetsTransmittedOK = ctr[ksz9477_tx_total_col];
>
> OctetsTransmittedOK = ksz9477_tx_total_col[lisons] ?
>
Sorry about this. It should be ksz9477_tx_total. I will review all the
parameters again for avoiding such mistakes.
> > + mac_stats->InRangeLengthErrors = ctr[ksz9477_rx_oversize];
>
> You use the same counter for RMON oversize statistic, the two
> definitely have different semantics, please check the standard
> and the datasheet.
>
> Remember that you don't have to fill in all the stats, if the HW does
> not maintain a matching statistic - leave the field be. Kernel will
> not report to user space unset fields.
Sure Jacub, I will review my code against documentation and submit the
updated revision.
Thanks,
Rakesh S