netdev - Re: [PATCH ethtool 2/3] ethtool: Regularise handling of offload flags

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Message-ID: <20110222145004.GB25132@rere.qmqm.pl>
Date:	Tue, 22 Feb 2011 15:50:04 +0100
From:	Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:	Ben Hutchings <bhutchings@...arflare.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH ethtool 2/3] ethtool: Regularise handling of offload
	flags

On Mon, Feb 21, 2011 at 04:59:08PM +0000, Ben Hutchings wrote:
> Use the new ETHTOOL_{G,S}FEATURES operations where available, and
> use the new structure and netif feature flags in any case.
> 
> Replace repetitive code for getting/setting offload flags with data-
> driven loops.
> 
> This changes error messages to use the same long names for offload
> flags as in dump_offload(), and changes various exit codes to 1.
> 
> Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>
> ---
> NEITF_F_* flags are copied into ethtool-util.h for now.  I think in
> future they should be exposed from <linux/netdevice.h> (hence the
> #ifndef).

I tried to avoid making NETIF_F_ flags an ABI. That's why there's new
ETH_SS_FEATURES ethtool string set. When bits in features get used up
it might be desirable to reorder them while introducing a new field
in struct net_device (eg. move non-changeable bits out of features).

Best Regards,
Michał Mirosław

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