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[73.241.114.122]) by smtp.gmail.com with ESMTPSA id h16sm474871pjt.43.2020.11.30.14.28.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Nov 2020 14:28:52 -0800 (PST) Date: Mon, 30 Nov 2020 14:28:48 -0800 From: Richard Cochran To: Tristram.Ha@microchip.com Cc: ceggers@arri.de, olteanv@gmail.com, kuba@kernel.org, andrew@lunn.ch, robh+dt@kernel.org, vivien.didelot@gmail.com, davem@davemloft.net, kurt.kanzenbach@linutronix.de, george.mccollister@gmail.com, marex@denx.de, helmut.grohne@intenta.de, pbarker@konsulko.com, Codrin.Ciubotariu@microchip.com, Woojung.Huh@microchip.com, UNGLinuxDriver@microchip.com, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next v3 00/12] net: dsa: microchip: PTP support for KSZ956x Message-ID: <20201130222848.GA5215@hoboy.vegasvil.org> References: <20201118203013.5077-1-ceggers@arri.de> <3569829.EPWo3g8d0Q@n95hx1g2> <12878838.xADNQ6XqJ4@n95hx1g2> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 30, 2020 at 09:01:25PM +0000, Tristram.Ha@microchip.com wrote: > The 1588 PTP engine in the KSZ switches was designed to be controlled closely by > a PTP stack, so it is a little difficult to use when there is a layer of kernel support > between the application and the driver. Are you saying that linuxptp is not a PTP stack? Maybe it would be wiser to design your HW so that it can work under Linux? Nah, nobody cares about Linux support these days.