netdev - Re: [PATCH RFC 0/5] net: L2 only interfaces

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Message-ID: <20150825162433.41c111d6@urahara>
Date:	Tue, 25 Aug 2015 16:24:33 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Florian Fainelli <f.fainelli@...il.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, andrew@...n.ch,
	linux@...ck-us.net, jiri@...nulli.us, sfeldma@...il.com
Subject: Re: [PATCH RFC 0/5] net: L2 only interfaces

On Tue, 25 Aug 2015 15:50:10 -0700
Florian Fainelli <f.fainelli@...il.com> wrote:

> Hi all,
> 
> This patch series implements a L2 only interface concept which basically denies
> any kind of IP address configuration on these interfaces, but still allows them
> to be used as configuration end-points to keep using ethtool and friends.
> 
> A cleaner approach might be to finally come up with the concept of net_port
> which a net_device would be a superset of, but this still raises tons of
> questions as to whether we should be modifying userland tools to be able to
> configure/query these interfaces. During all the switch talks/discussions last
> year, it seemed to me like th L2-only interface is closest we have to a
> "network port".
> 
> Comments, flames, flying tomatoes welcome!
> 
> Florian Fainelli (5):
>   net: add IFF_L2_ONLY flag
>   net: ipv4: Skip in_dev initialization for IFF_L2_ONLY interfaces
>   net: ipv6: Skip in6_dev initialization for IFF_L2_ONLY interfaces
>   net: dsa: Flag slave network devices with IFF_L2_ONLY
>   net: dsa: bcm_sf2: Allow disabling tagging protocol
> 
>  drivers/net/dsa/bcm_sf2.c | 16 +++++++++++++---
>  include/uapi/linux/if.h   |  5 ++++-
>  net/dsa/slave.c           |  1 +
>  net/ipv4/devinet.c        |  3 +++
>  net/ipv6/addrconf.c       |  4 ++++
>  5 files changed, 25 insertions(+), 4 deletions(-)
> 

Can you bridge these?
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