linux-kernel - Re: [PATCH net-next v18 10/13] rtase: Implement ethtool function

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Date: Thu, 9 May 2024 20:40:47 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Justin Lai <justinlai0215@...ltek.com>
Cc: <davem@...emloft.net>, <edumazet@...gle.com>, <pabeni@...hat.com>,
 <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>, <andrew@...n.ch>,
 <jiri@...nulli.us>, <horms@...nel.org>, <pkshih@...ltek.com>,
 <larry.chiu@...ltek.com>
Subject: Re: [PATCH net-next v18 10/13] rtase: Implement ethtool function

On Wed, 8 May 2024 20:39:42 +0800 Justin Lai wrote:
> +	data[0] = le64_to_cpu(counters->tx_packets);
> +	data[1] = le64_to_cpu(counters->rx_packets);
> +	data[2] = le64_to_cpu(counters->tx_errors);
> +	data[3] = le32_to_cpu(counters->rx_errors);
> +	data[4] = le16_to_cpu(counters->rx_missed);
> +	data[5] = le16_to_cpu(counters->align_errors);
> +	data[6] = le32_to_cpu(counters->tx_one_collision);
> +	data[7] = le32_to_cpu(counters->tx_multi_collision);
> +	data[8] = le64_to_cpu(counters->rx_unicast);
> +	data[9] = le64_to_cpu(counters->rx_broadcast);
> +	data[10] = le32_to_cpu(counters->rx_multicast);
> +	data[11] = le16_to_cpu(counters->tx_aborted);
> +	data[12] = le16_to_cpu(counters->tx_underun);

Please limit stats you report in ethtool -S to just the stats for which
proper interfaces don't exist. Don't duplicate what's already reported
via rtase_get_stats64(), also take a look at what can be reported via
various *_stats members of struct ethtool_ops.