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From: Jan Blunck <jblunck@infradead.org>
Date: Tue, 28 Feb 2017 10:25:04 +0100
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To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
Cc: Olivier Matz <olivier.matz@6wind.com>, 
 "Richardson, Bruce" <bruce.richardson@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
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Subject: Re: [dpdk-dev] [RFC 0/8] mbuf: structure reorganization
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On Tue, Feb 28, 2017 at 10:05 AM, Ananyev, Konstantin
<konstantin.ananyev@intel.com> wrote:
>> >
>> > In both cases, we would need a conversion code (maybe in a library) if
>> > the application wants to work with timestamps from several sources. The
>> > second solution removes the normalization code in the PMD when not
>> > needed, it is probably better.
>>
>> I agree.
>
> One question - does that mean that application would need to
> keep a track from what PMD each particular packet came to do the normalization?

Yes. You usually do this based on mbuf->port.