netdev - Re: [PATCH v7 net-next] net: systemport: Support 64bit statistics

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Date:   Thu, 03 Aug 2017 16:45:54 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     f.fainelli@...il.com
Cc:     stephen@...workplumber.org, jqiaoulk@...il.com,
        eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH v7 net-next] net: systemport: Support 64bit statistics

From: Florian Fainelli <f.fainelli@...il.com>
Date: Thu, 3 Aug 2017 16:20:04 -0700

> On 08/03/2017 04:16 PM, Stephen Hemminger wrote:
>> On Fri,  4 Aug 2017 00:07:45 +0100
>> "Jianming.qiao" <jqiaoulk@...il.com> wrote:
>> 
>>>  static const struct bcm_sysport_stats bcm_sysport_gstrings_stats[] = {
>>>  	/* general stats */
>>> -	STAT_NETDEV(rx_packets),
>>> -	STAT_NETDEV(tx_packets),
>>> -	STAT_NETDEV(rx_bytes),
>>> -	STAT_NETDEV(tx_bytes),
>>> +	STAT_NETDEV64(rx_packets),
>>> +	STAT_NETDEV64(tx_packets),
>>> +	STAT_NETDEV64(rx_bytes),
>>> +	STAT_NETDEV64(tx_bytes),
>>>  	STAT_NETDEV(rx_errors),
>> 
>> Please don't duplicate regular statistics (ie netdev) into ethtool.
>> It is a needless duplication.
> 
> Agreed, but these are there already and this driver's ethtool::get_stats
> is an user ABI of some sort, is not it?

Agreed, they have to stay at this point.