netdev - Re: [RFC PATCH net-next] enable virtio_net to return bus_info in ethtool -i consistent with emulated NICs

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Message-ID: <1321309800.2827.22.camel@bwh-desktop>
Date:	Mon, 14 Nov 2011 22:30:00 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Rick Jones <raj@...dy.cup.hp.com>
CC:	<netdev@...r.kernel.org>, Rusty Russell <rusty@...tcorp.com.au>,
	Michael Tsirkin <mst@...hat.com>,
	<virtualization@...ts.linux-foundation.org>
Subject: Re: [RFC PATCH net-next] enable virtio_net to return bus_info in
 ethtool -i consistent with emulated NICs

On Mon, 2011-11-14 at 13:52 -0800, Rick Jones wrote:
> From: Rick Jones <rick.jones2@...com>
> 
> Add a new .bus_name to virtio_config_ops then modify virtio_net to 
> call through to it in an ethtool .get_drvinfo routine to report
> bus_info in ethtool -i output which is consistent with other
> emulated NICs and the output of lspci.  
[...]
> diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c
> index 0dc30ff..3724d45 100644
> --- a/drivers/lguest/lguest_device.c
> +++ b/drivers/lguest/lguest_device.c
> @@ -381,6 +381,11 @@ error:
>  	return PTR_ERR(vqs[i]);
>  }
>  
> +static const char *lg_bus_name(struct virtio_device *vdev)
> +{
> +	return "Not Implemented";
> +}
[...]
> +static const char *kvm_bus_name(struct virtio_device *vdev)
> +{
> +	return "Not Implemented";
> +}
[...]

Please use the existing 'not implemented' value, which is the empty
string.   If you think ethtool should print some helpful message instead
of an empty string, please submit a patch for ethtool.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
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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