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Date: Tue, 2 Feb 2016 18:27:42 +0200
From: Or Gerlitz <gerlitz.or@...il.com>
To: John Fastabend <john.fastabend@...il.com>
Cc: Anjali Singhai Jain <anjali.singhai@...el.com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>,
Jamal Hadi Salim <jhs@...atatu.com>, ast@...com,
"Skidmore, Donald C" <donald.c.skidmore@...el.com>,
horms@...ge.net.au, Linux Netdev List <netdev@...r.kernel.org>,
Thomas Graf <tgraf@...g.ch>, David Miller <davem@...emloft.net>
Subject: Re: [RFC PATCH 6/7] net: ixgbe: add minimal parser details for ixgbe
On Mon, Feb 1, 2016 at 3:52 AM, John Fastabend <john.fastabend@...il.com> wrote:
> This adds an ixgbe data structure that is used to determine what
> headers:fields can be matched and in what order they are supported.
>
> For hardware devices this can be a bit tricky because typically
> only pre-programmed (firmware, ucode, rtl) parse graphs will be
> supported and we don't yet have an interface to change these from
> the OS. So its sort of a you get whatever your friendly vendor
> provides affair at the moment.
>
> In the future we can add the get routines and set routines to
> update this data structure. One interesting thing to note here
> is the data structure here identifies ethernet, ip, and tcp
> fields without having to hardcode them as enumerations or use
> other identifiers.
Maybe for the current state this patch (or the most of it) can be
made generic and provided in a way that multiple HW drivers can use it?
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