netdev - Re: [PATCH 1/1] ethtool: Expose MDI-X status

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Message-Id: <1243040677.16597.52.camel@deadeye>
Date:	Sat, 23 May 2009 02:04:37 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Chaitanya Lala <clala@...erbed.com>
Cc:	jgarzik@...ox.com, netdev@...r.kernel.org
Subject: Re: [PATCH 1/1] ethtool: Expose MDI-X status

On Fri, 2009-05-22 at 10:18 -0700, Chaitanya Lala wrote:
> The MDI-X status is a useful tool for diagnosing network
> connectivity issues. We expose MDI-X status as a tri-state value
> status which drivers can optionally implement.
> 
> Signed-off-by: Chaitanya Lala <clala@...erbed.com>
> Signed-off-by: Arthur Jones <ajones@...erbed.com>
> ---
>  ethtool-copy.h |    6 ++++++
>  ethtool.c      |   13 +++++++++++++
>  2 files changed, 19 insertions(+), 0 deletions(-)
> 
> diff --git a/ethtool-copy.h b/ethtool-copy.h
> index 3ca4e2c..d3e1524 100644
> --- a/ethtool-copy.h
> +++ b/ethtool-copy.h
> @@ -28,6 +28,7 @@ struct ethtool_cmd {
>  	__u16	speed_hi;
>  	__u16	reserved2;
>  	__u32	reserved[3];
> +	__u8	is_mdix;	/* Tri-state value to expose MDI-X */
>  };
[...]

No, you cannot change the size of this structure either.

Ben.

-- 
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
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