netdev - Re: [PATCH net-next v2] bonding: move 802.3ad port state flags to uapi

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Message-ID: <20191216031308.GA29928@C02YVCJELVCG.greyhouse.net>
Date:   Sun, 15 Dec 2019 22:13:08 -0500
From:   Andy Gospodarek <andy@...yhouse.net>
To:     David Ahern <dsahern@...il.com>
Cc:     Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Andy Roulin <aroulin@...ulusnetworks.com>,
        netdev@...r.kernel.org, nikolay@...ulusnetworks.com,
        roopa@...ulusnetworks.com, j.vosburgh@...il.com, vfalico@...il.com,
        stephen@...workplumber.org
Subject: Re: [PATCH net-next v2] bonding: move 802.3ad port state flags to
 uapi

On Sun, Dec 15, 2019 at 08:10:15PM -0700, David Ahern wrote:
> On 12/14/19 2:18 PM, Jakub Kicinski wrote:
> > On Wed, 11 Dec 2019 14:30:58 -0800, Andy Roulin wrote:
> >> The bond slave actor/partner operating state is exported as
> >> bitfield to userspace, which lacks a way to interpret it, e.g.,
> >> iproute2 only prints the state as a number:
> >>
> >> ad_actor_oper_port_state 15
> >>
> >> For userspace to interpret the bitfield, the bitfield definitions
> >> should be part of the uapi. The bitfield itself is defined in the
> >> 802.3ad standard.
> >>
> >> This commit moves the 802.3ad bitfield definitions to uapi.
> >>
> >> Related iproute2 patches, soon to be posted upstream, use the new uapi
> >> headers to pretty-print bond slave state, e.g., with ip -d link show
> >>
> >> ad_actor_oper_port_state_str <active,short_timeout,aggregating,in_sync>
> >>
> >> Signed-off-by: Andy Roulin <aroulin@...ulusnetworks.com>
> >> Acked-by: Roopa Prabhu <roopa@...ulusnetworks.com>
> > 
> > Applied, I wonder if it wouldn't be better to rename those
> > s/AD_/BOND_3AD_/ like the prefix the stats have. 
> > But I guess it's unlikely user space has those exact defines 
> > set to a different value so can't cause a clash..
> > 
> 
> I think that would be a better namespace now that it is in the UAPI.

I agree that it would be nuch nicer.  I never really liked the 'AD'
usage as an abbreviation for 802.3ad.