linux-kernel - Re: [PATCH] net: ethernet: litex: add support for 64 bit stats

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Date:   Thu, 15 Jun 2023 13:54:39 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Jisheng Zhang <jszhang@...nel.org>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Karol Gugala <kgugala@...micro.com>,
        Mateusz Holenko <mholenko@...micro.com>,
        Gabriel Somlo <gsomlo@...il.com>,
        Joel Stanley <joel@....id.au>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: ethernet: litex: add support for 64 bit stats

On Thu, Jun 15, 2023 at 12:20:35AM +0800, Jisheng Zhang wrote:
> Implement 64 bit per cpu stats to fix the overflow of netdev->stats
> on 32 bit platforms. To simplify the code, we use net core
> pcpu_sw_netstats infrastructure. One small drawback is some memory
> overhead because litex uses just one queue, but we allocate the
> counters per cpu.
> 
> Signed-off-by: Jisheng Zhang <jszhang@...nel.org>

Reviewed-by: Simon Horman <simon.horman@...igine.com>