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Miller" , Jakub Kicinski , John Stultz , Thomas Gleixner , Stephen Boyd , Russell King , Marc Kleine-Budde , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH v2 6/7] net: dsa: b53: Add logic for TX timestamping Message-ID: <20211110152341.muap5bu5b2tmnnir@skbuf> References: <20211109095013.27829-1-martin.kaistra@linutronix.de> <20211109095013.27829-7-martin.kaistra@linutronix.de> <20211109111213.6vo5swdhxjvgmyjt@skbuf> <87ee7o8otj.fsf@kurt> <20211110130545.ga7ajracz2vvzotg@skbuf> <20211110150855.GD28458@hoboy.vegasvil.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211110150855.GD28458@hoboy.vegasvil.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 10, 2021 at 07:08:55AM -0800, Richard Cochran wrote: > In any case, I agree that the driver should enable the capabilities of > the HW and not impose artificial limitations. Which was not my actual point. We were discussing whether the kernel should attempt to take a 2-step TX timestamp if a different one is outstanding, be it from the same socket or from a different one. Whether the hardware supports multiple concurrent TX timestamps is orthogonal to that.