netdev - Re: [PATCH net-next 2/7] net-timestamp: MSG

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Message-ID: <CA+FuTSfJo+zYzmvdECxm5d5isJjsYyBganT_2KLQF5Sq1Qj+tw@mail.gmail.com>
Date:	Wed, 25 Jun 2014 17:20:58 -0400
From:	Willem de Bruijn <willemb@...gle.com>
To:	Richard Cochran <richardcochran@...il.com>
Cc:	netdev@...r.kernel.org, Eric Dumazet <eric.dumazet@...il.com>,
	David Miller <davem@...emloft.net>
Subject: Re: [PATCH net-next 2/7] net-timestamp: MSG_TSTAMP one-shot tx timestamps

On Wed, Jun 25, 2014 at 1:01 AM, Richard Cochran
<richardcochran@...il.com> wrote:
> On Tue, Jun 24, 2014 at 11:43:47AM -0400, Willem de Bruijn wrote:
>> The kernel support datagram tx timestamping through socket option
>> SO_TIMESTAMPING. This patch add send() flag MSG_TSTAMP to allow
>> selectively requesting a timestamp for a single packet.
>
> This is a nice idea. I wonder whether the drivers will react
> correctly, need to think about it.
>
>> MSG_TSTAMP does not depend on SO_TIMESTAMPING. Enabling both
>> concurrently is redundant, but safe.
>>
>> This patch adds support for IPv4 and IPv6 UDP sendmsg().
>
> What about raw?

I saw that bug/feature request earlier this month, too. I can add that
as future work to this patch set. It seems like a straightforward
extension.

>
> Thanks,
> Richard
>
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