netdev - Re: [PATCH net 8/8] net/mlx5e: Count LRO packets correctly

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Message-ID: <363380b9-38c8-095d-bcb2-468c29d7fc2a@fb.com>
Date:   Tue, 21 Mar 2017 07:41:11 -0700
From:   Alexei Starovoitov <ast@...com>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        "David S. Miller" <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, Or Gerlitz <ogerlitz@...lanox.com>,
        Gal Pressman <galp@...lanox.com>, <kernel-team@...com>
Subject: Re: [PATCH net 8/8] net/mlx5e: Count LRO packets correctly

On 3/21/17 6:59 AM, Saeed Mahameed wrote:
> From: Gal Pressman <galp@...lanox.com>
>
> RX packets statistics ('rx_packets' counter) used to count LRO packets
> as one, even though it contains multiple segments.
> This patch will increment the counter by the number of segments, and
> align the driver with the behavior of other drivers in the stack.
>
> Note that no information is lost in this patch due to 'rx_lro_packets'
> counter existence.
>
> Before, ethtool showed:
> $ ethtool -S ens6 | egrep "rx_packets|rx_lro_packets"
>      rx_packets: 435277
>      rx_lro_packets: 35847
>      rx_packets_phy: 1935066
>
> Now, we will see the more logical statistics:
> $ ethtool -S ens6 | egrep "rx_packets|rx_lro_packets"
>      rx_packets: 1935066
>      rx_lro_packets: 35847
>      rx_packets_phy: 1935066
>
> Fixes: e586b3b0baee ("net/mlx5: Ethernet Datapath files")
> Signed-off-by: Gal Pressman <galp@...lanox.com>
> Cc: kernel-team@...com
> Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>

Acked-by: Alexei Starovoitov <ast@...nel.org>