linux-kernel - Re: [PATCH v1 net-next] net: dsa: qca: ar9331: add ethtool stats support

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Message-ID: <20201116133453.270b8db5@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Mon, 16 Nov 2020 13:34:53 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Russell King <linux@...linux.org.uk>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org
Subject: Re: [PATCH v1 net-next] net: dsa: qca: ar9331: add ethtool stats
 support

On Sun, 15 Nov 2020 08:35:33 +0100 Oleksij Rempel wrote:
> +static const struct ar9331_mib_desc ar9331_mib[] = {
> +	MIB_DESC(1, 0x00, "RxBroad"),
> +	MIB_DESC(1, 0x04, "RxPause"),
> +	MIB_DESC(1, 0x08, "RxMulti"),
> +	MIB_DESC(1, 0x0c, "RxFcsErr"),
> +	MIB_DESC(1, 0x10, "RxAlignErr"),
> +	MIB_DESC(1, 0x14, "RxRunt"),
> +	MIB_DESC(1, 0x18, "RxFragment"),
> +	MIB_DESC(1, 0x1c, "Rx64Byte"),
> +	MIB_DESC(1, 0x20, "Rx128Byte"),
> +	MIB_DESC(1, 0x24, "Rx256Byte"),
> +	MIB_DESC(1, 0x28, "Rx512Byte"),
> +	MIB_DESC(1, 0x2c, "Rx1024Byte"),
> +	MIB_DESC(1, 0x30, "Rx1518Byte"),
> +	MIB_DESC(1, 0x34, "RxMaxByte"),
> +	MIB_DESC(1, 0x38, "RxTooLong"),
> +	MIB_DESC(2, 0x3c, "RxGoodByte"),
> +	MIB_DESC(2, 0x44, "RxBadByte"),
> +	MIB_DESC(1, 0x4c, "RxOverFlow"),
> +	MIB_DESC(1, 0x50, "Filtered"),
> +	MIB_DESC(1, 0x54, "TxBroad"),
> +	MIB_DESC(1, 0x58, "TxPause"),
> +	MIB_DESC(1, 0x5c, "TxMulti"),
> +	MIB_DESC(1, 0x60, "TxUnderRun"),
> +	MIB_DESC(1, 0x64, "Tx64Byte"),
> +	MIB_DESC(1, 0x68, "Tx128Byte"),
> +	MIB_DESC(1, 0x6c, "Tx256Byte"),
> +	MIB_DESC(1, 0x70, "Tx512Byte"),
> +	MIB_DESC(1, 0x74, "Tx1024Byte"),
> +	MIB_DESC(1, 0x78, "Tx1518Byte"),
> +	MIB_DESC(1, 0x7c, "TxMaxByte"),
> +	MIB_DESC(1, 0x80, "TxOverSize"),
> +	MIB_DESC(2, 0x84, "TxByte"),
> +	MIB_DESC(1, 0x8c, "TxCollision"),
> +	MIB_DESC(1, 0x90, "TxAbortCol"),
> +	MIB_DESC(1, 0x94, "TxMultiCol"),
> +	MIB_DESC(1, 0x98, "TxSingleCol"),
> +	MIB_DESC(1, 0x9c, "TxExcDefer"),
> +	MIB_DESC(1, 0xa0, "TxDefer"),
> +	MIB_DESC(1, 0xa4, "TxLateCol"),
> +};

You must expose relevant statistics via the normal get_stats64 NDO
before you start dumping free form stuff in ethtool -S.