From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH V4 net-next 0/6] Peer to Peer One-Step time stamping Date: Thu, 30 May 2019 11:55:07 -0700 (PDT) Message-ID: <20190530.115507.1344606945620280103.davem@davemloft.net> References: Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: netdev-owner@vger.kernel.org To: richardcochran@gmail.com Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, andrew@lunn.ch, f.fainelli@gmail.com, jacob.e.keller@intel.com, mark.rutland@arm.com, mlichvar@redhat.com, robh+dt@kernel.org, willemb@google.com List-Id: devicetree@vger.kernel.org From: Richard Cochran Date: Tue, 28 May 2019 22:58:01 -0700 > This series adds support for PTP (IEEE 1588) P2P one-step time > stamping along with a driver for a hardware device that supports this. > > If the hardware supports p2p one-step, it subtracts the ingress time > stamp value from the Pdelay_Request correction field. The user space > software stack then simply copies the correction field into the > Pdelay_Response, and on transmission the hardware adds the egress time > stamp into the correction field. > > This new functionality extends CONFIG_NETWORK_PHY_TIMESTAMPING to > cover MII snooping devices, but it still depends on phylib, just as > that option does. Expanding beyond phylib is not within the scope of > the this series. > > User space support is available in the current linuxptp master branch. > > - Patch 1 adds the new option. > - Patches 2-5 add support for MII time stamping in non-PHY devices. > - Patch 6 adds a driver implementing the new option. Series applied, thanks Richard.