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Date:      Mon, 09 Feb 2015 21:03:57 +0000
From:      "George Neville-Neil" <gnn@neville-neil.com>
To:        "Olivier =?utf-8?q?Cochard-Labb=C3=A9?=" <olivier@cochard.me>
Cc:        "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Subject:   Re: IEE1588/PTP support for NIC drivers ?
Message-ID:  <06B0AFC5-A68A-4F1C-A0CD-2BAFD09E3F6B@neville-neil.com>
In-Reply-To: <CA%2Bq%2BTcprMN6_%2BOgx680iYFKOZYwfa9TRu3Hh4kv9vnZOOeM3oQ@mail.gmail.com>
References:  <CA%2Bq%2BTcprMN6_%2BOgx680iYFKOZYwfa9TRu3Hh4kv9vnZOOeM3oQ@mail.gmail.com>

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On 5 Feb 2015, at 20:50, Olivier Cochard-Labbé wrote:

> Hi,
>
> Some network cards support IEE1588 hardware timestamp (like some Intel
> card), but their drivers didn't support this feature.
> I beleive there is a kernel feature missing for this suppport.
>
> Searching on the archive's mailing-list, I've found this post about 
> some
> legal issue:
> https://lists.freebsd.org/pipermail/freebsd-net/2007-October/015512.html
>
> Is still a legal problem or just a missing feature ?
>

Missing feature.

We need an API and the like to get this going.  I've taken various stabs 
at it in the past
and will likely do so again but if anyone has working code I'd be more 
than happy to review.

Best,
George



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