netdev - Re: [PATCH net-next v3] net: ipv4: add support for ECMP hash policy choice

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Message-ID: <5c0b73c5-ee6b-d67f-b01e-0d749c8ced6d@cumulusnetworks.com>
Date:   Wed, 15 Mar 2017 09:01:16 -0600
From:   David Ahern <dsa@...ulusnetworks.com>
To:     nicolas.dichtel@...nd.com,
        Stephen Hemminger <stephen@...workplumber.org>,
        Roopa Prabhu <roopa@...ulusnetworks.com>
Cc:     David Miller <davem@...emloft.net>,
        Nikolay Aleksandrov <nikolay@...ulusnetworks.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>, jkbs@...hat.com,
        Eric Dumazet <edumazet@...gle.com>,
        Peter Christensen <pch@...bogen.com>
Subject: Re: [PATCH net-next v3] net: ipv4: add support for ECMP hash policy
 choice

On 3/15/17 3:17 AM, Nicolas Dichtel wrote:
>>> Is there another patch to add the NETCONFA_ECMP support?
>>>
>>
>> does userspace care?
> Yes, I think it is needed so that userspace can correctly monitor this behavior.
> It also enables to check this parameter through netlink.
> 

I don't understand why userspace cares. What can userspace do with that
information?