linux-kernel - Re: [PATCH v2 net-next 2/5] net: dsa: microchip: add eth ctrl grouping for ethtool statistics

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Date:   Fri, 17 Feb 2023 19:08:22 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     Rakesh Sankaranarayanan <rakesh.sankaranarayanan@...rochip.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        woojung.huh@...rochip.com, UNGLinuxDriver@...rochip.com,
        andrew@...n.ch, f.fainelli@...il.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Subject: Re: [PATCH v2 net-next 2/5] net: dsa: microchip: add eth ctrl
 grouping for ethtool statistics

On Fri, Feb 17, 2023 at 04:32:08PM +0530, Rakesh Sankaranarayanan wrote:
> +void ksz8_get_eth_ctrl_stats(struct ksz_device *dev, int port,
> +			     struct ethtool_eth_ctrl_stats *ctrl_stats)
> +{
> +	struct ksz_port_mib *mib;
> +	u64 *cnt;
> +
> +	mib = &dev->ports[port].mib;
> +
> +	mutex_lock(&mib->cnt_mutex);
> +
> +	cnt = &mib->counters[KSZ8_TX_PAUSE];
> +	dev->dev_ops->r_mib_pkt(dev, port, KSZ8_TX_PAUSE, NULL, cnt);
> +	ctrl_stats->MACControlFramesTransmitted = *cnt;
> +
> +	cnt = &mib->counters[KSZ8_RX_PAUSE];
> +	dev->dev_ops->r_mib_pkt(dev, port, KSZ8_RX_PAUSE, NULL, cnt);
> +	ctrl_stats->MACControlFramesReceived = *cnt;
> +
> +	mutex_unlock(&mib->cnt_mutex);
> +}

These should be reported as standard pause stats as well (ethtool -I --show-pause swpN).