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Date:   Wed, 26 Jul 2023 16:06:06 +0530
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Subject: Re: [EXTERNAL] Re: [PATCH v11 07/10] net: ti: icssg-prueth: Add ICSSG
 Stats
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To:     Jakub Kicinski <kuba@kernel.org>,
        MD Danish Anwar <danishanwar@ti.com>
CC:     Randy Dunlap <rdunlap@infradead.org>,
        Roger Quadros <rogerq@kernel.org>,
        Simon Horman <simon.horman@corigine.com>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Richard Cochran <richardcochran@gmail.com>,
        Conor Dooley <conor+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Eric Dumazet <edumazet@google.com>,
        "David S. Miller" <davem@davemloft.net>, <nm@ti.com>, <srk@ti.com>,
        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <netdev@vger.kernel.org>, <linux-omap@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>
References: <20230724112934.2637802-1-danishanwar@ti.com>
 <20230724112934.2637802-8-danishanwar@ti.com>
 <20230725205014.04e4bba3@kernel.org>
From:   Md Danish Anwar <a0501179@ti.com>
Organization: Texas Instruments
In-Reply-To: <20230725205014.04e4bba3@kernel.org>
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Hi Jakub

On 26/07/23 9:20 am, Jakub Kicinski wrote:
> On Mon, 24 Jul 2023 16:59:31 +0530 MD Danish Anwar wrote:
>> +	/* Rx */
>> +	ICSSG_STATS(rx_packets, true),
>> +	ICSSG_STATS(rx_broadcast_frames, false),
>> +	ICSSG_STATS(rx_multicast_frames, false),
> 
> There is a standard stat for mcast.
> 

Sure. I will add multicast stats via .ndo_get_stats64 instead of ethtool.

>> +	ICSSG_STATS(rx_crc_errors, true),
>> +	ICSSG_STATS(rx_mii_error_frames, false),
>> +	ICSSG_STATS(rx_odd_nibble_frames, false),
>> +	ICSSG_STATS(rx_frame_max_size, false),
>> +	ICSSG_STATS(rx_max_size_error_frames, false),
>> +	ICSSG_STATS(rx_frame_min_size, false),
>> +	ICSSG_STATS(rx_min_size_error_frames, false),
>> +	ICSSG_STATS(rx_over_errors, true),
>> +	ICSSG_STATS(rx_class0_hits, false),
>> +	ICSSG_STATS(rx_class1_hits, false),
>> +	ICSSG_STATS(rx_class2_hits, false),
>> +	ICSSG_STATS(rx_class3_hits, false),
>> +	ICSSG_STATS(rx_class4_hits, false),
>> +	ICSSG_STATS(rx_class5_hits, false),
>> +	ICSSG_STATS(rx_class6_hits, false),
>> +	ICSSG_STATS(rx_class7_hits, false),
>> +	ICSSG_STATS(rx_class8_hits, false),
>> +	ICSSG_STATS(rx_class9_hits, false),
>> +	ICSSG_STATS(rx_class10_hits, false),
>> +	ICSSG_STATS(rx_class11_hits, false),
>> +	ICSSG_STATS(rx_class12_hits, false),
>> +	ICSSG_STATS(rx_class13_hits, false),
>> +	ICSSG_STATS(rx_class14_hits, false),
>> +	ICSSG_STATS(rx_class15_hits, false),
>> +	ICSSG_STATS(rx_smd_frags, false),
>> +	ICSSG_STATS(rx_bucket1_size, false),
>> +	ICSSG_STATS(rx_bucket2_size, false),
>> +	ICSSG_STATS(rx_bucket3_size, false),
>> +	ICSSG_STATS(rx_bucket4_size, false),
> 
> Are the bucket sizes configurable? Can we set the bucket sizes
> to standard RMON ones and use ethtool RMON stats?

The bucket sizes are not configurable. Bucket size is read from hardware and is
fixed. I don't think we can configure bucket size and use ethtool RMON stats.
It's better to dump bucket sizes via ethtool -S.

-- 
Thanks and Regards,
Danish.