netdev - Re: [net-next PATCH] ethtool: Add support for SCTP verification tag in Rx NFC

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Message-ID: <1471738910.13300.114.camel@decadent.org.uk>
Date:   Sun, 21 Aug 2016 01:21:50 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     Alexander Duyck <alexander.h.duyck@...el.com>,
        netdev@...r.kernel.org
Cc:     davem@...emloft.net
Subject: Re: [net-next PATCH] ethtool: Add support for SCTP verification tag
 in Rx NFC

On Fri, 2016-08-19 at 14:32 -0700, Alexander Duyck wrote:
> The i40e hardware has support for SCTP filtering via Rx NFC however the
> default configuration expects us to include the verification tag as a part
> of the filter.  In order to support that I need to be able to transfer that
> data through the ethtool interface via a new structure.
> 
> This patch adds a new structure to allow us to pass the verification tag
> for IPv4 or IPv6 SCTP traffic.
[...]

This looks like an incompatible ABI change.  I suppose it could be OK
if no drivers implemented flow steering for SCTP using the previously
specified structure, but have you checked that that is the case?

Ben.

-- 
Ben Hutchings
It's easier to fight for one's principles than to live up to them.

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