From: "Toke Høiland-Jørgensen" <thoiland@redhat.com>
To: Piotr Raczynski <piotr.raczynski@intel.com>,
Christoph Kuhr <christoph.kuhr@web.de>
Cc: "xdp-newbies@vger.kernel.org" <xdp-newbies@vger.kernel.org>
Subject: Re: Access Hardware Timestamp in eBPF Program
Date: Fri, 22 Nov 2019 11:58:23 +0100 [thread overview]
Message-ID: <87imnc5ga8.fsf@toke.dk> (raw)
In-Reply-To: <20191121231636.GA5888@DEV.igk.intel.com>
Piotr Raczynski <piotr.raczynski@intel.com> writes:
>> Is there a way to access such timestamps in a XDP eBPF program?
>
> Unfortunately, as of now there is no universal way for XDP programs,
> even in native mode, to access information taken from hardware,
> e.g. from Rx descriptor. Technically it would be possible, but there
> are no interfaces now that would allow common scheme for different
> drivers.
Adding this is on the TODO list, though:
https://github.com/xdp-project/xdp-project/blob/master/xdp-project.org#metadata-available-to-programs
-Toke
prev parent reply other threads:[~2019-11-22 10:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-21 21:24 Access Hardware Timestamp in eBPF Program Christoph Kuhr
2019-11-21 23:16 ` Piotr Raczynski
2019-11-22 10:58 ` Toke Høiland-Jørgensen [this message]
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