linux-kernel - Re: [PATCH v3 net-next 4/9] sunvnet: add driver stats for ethtool support

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Date:   Sat, 11 Feb 2017 21:01:01 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     stephen@...workplumber.org
Cc:     shannon.nelson@...cle.com, netdev@...r.kernel.org,
        sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 net-next 4/9] sunvnet: add driver stats for ethtool
 support

From: Stephen Hemminger <stephen@...workplumber.org>
Date: Fri, 10 Feb 2017 16:22:08 -0800

> On Fri, 10 Feb 2017 09:38:20 -0800
> Shannon Nelson <shannon.nelson@...cle.com> wrote:
> 
>> +static void vsw_get_ethtool_stats(struct net_device *dev,
>> +				  struct ethtool_stats *estats, u64 *data)
>> +{
>> +	int i = 0;
>> +
>> +	data[i++] = dev->stats.rx_packets;
>> +	data[i++] = dev->stats.tx_packets;
>> +	data[i++] = dev->stats.rx_bytes;
>> +	data[i++] = dev->stats.tx_bytes;
>> +	data[i++] = dev->stats.rx_errors;
>> +	data[i++] = dev->stats.tx_errors;
>> +	data[i++] = dev->stats.rx_dropped;
>> +	data[i++] = dev->stats.tx_dropped;
>> +	data[i++] = dev->stats.multicast;
> 
> Please do not duplicate regular network statistics into ethtool.
> This doesn't really add any value.

Agreed.