linux-kernel - Re: [PATCH v4 01/10] ethernet: add sun8i-emac driver

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Date:   Sun, 23 Oct 2016 15:08:56 +0300
From:   Rami Rosen <roszenrami@...il.com>
To:     Corentin Labbe <clabbe.montjoie@...il.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com,
        maxime.ripard@...e-electrons.com, wens@...e.org,
        linux@...linux.org.uk, David Miller <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>, andrew@...n.ch,
        Netdev <netdev@...r.kernel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 01/10] ethernet: add sun8i-emac driver

Hi Corentin,


Trivial comment: rx_saf_fai and rx_daf_fail are not used. This implies that also
rx_saf_error and rx_daf_error should be removed:

> +static const char const estats_str[][ETH_GSTRING_LEN] = {
...
> +       "rx_header_error",
> +       "rx_overflow_error",
> +       "rx_saf_error",
> +       "rx_daf_error",
> +       "rx_buf_error",
...

> +
> +struct sun8i_emac_stats {
> +       u64 rx_payload_error;
...
> +       u64 rx_overflow_error;
> +       u64 rx_saf_fail;
> +       u64 rx_daf_fail;

> +       u64 tx_used_desc;
> +       u64 napi_schedule;
> +       u64 napi_underflow;
> +};
> +

Trivial: typo, should be: can transfer

> +/* The datasheet said that each descriptor can transfers up to 4096bytes
> + * But latter, a register documentation reduce that value to 2048

Regards,
Rami Rosen