From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 645A0C433F5 for ; Sun, 6 Mar 2022 16:51:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233793AbiCFQuh (ORCPT ); Sun, 6 Mar 2022 11:50:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231229AbiCFQug (ORCPT ); Sun, 6 Mar 2022 11:50:36 -0500 Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8055D1707C for ; Sun, 6 Mar 2022 08:49:44 -0800 (PST) Received: by mail-pg1-x533.google.com with SMTP id o26so11654611pgb.8 for ; Sun, 06 Mar 2022 08:49:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=UifAvvgVuErFQwkVAvsUbkcz0u3uiG8py7zC40/Btc4=; b=ZDhKC0Hla9+UGTjHRdwrbgdaP2TWrRh27yqJDl773H+4z3ORzTT03MqbFehaMZhCrx eQFQYN07MMDuPBKVm+E6NRSmvyZ+jEV6iEbMzIvPsnKpBh6yl4Wg5GUiNGgpcg+9hZs2 JgiT6YvvlhktU/OkzPIqs4qzPFtD9KR4Wd8SSNu+n5DCrs6Ry55226yT5K1weZAvPi3f O1Ak4bukSLDUMnW146r4GQ5ZZrFB/dVDzg7Ok4ELoZmz9nbPEWhxDgphwJRQoM9n+aMn gTqkM+vo8F3ZH3Lao+vvBE89qSlWqGgkW1OrhWhtSDDvoi+x0aOiJ0oIfDtiMHPEdNX4 fMSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=UifAvvgVuErFQwkVAvsUbkcz0u3uiG8py7zC40/Btc4=; b=dghA8uqS8IFR8EKJDmVidrVJtLD3DWW+bGLBPDlJPXPZ4wbb/X4/2phl1WUWyCZcM1 ExsnB1mdtq2J9p/fCMSKFQgxw8h6zl0TvNi9DyGd+4N0bw8HtJDxlMdADamt2rb8PGLH 23m8hrkkNzVgijkY49WWhUYQ9O0NEJ1NDsy4GVDolEhEEZifvLqhtqAnESIEdRRo5tT9 Lepcd2SyzLv3k7RpzFpsnUuqyHMY3wY/7DghmlT+R3t6ITkqOqgVl4ASR45mKWeuYa8+ 165Mpi5QNfiilcAjVk/FmCxF3KBiOpNNOIdCgJvM9D9cQlReoJq5Jzt8Nxf2/s/SICnV zTTw== X-Gm-Message-State: AOAM531aBtePn5vSwTTwdRnRuR9U2GyLxhI5aQuXGRH6IHB4RSLCDzNJ +Od0PlbQM5TEsnU1RC9L37E= X-Google-Smtp-Source: ABdhPJx8sYEHtiQBDbsXgm96EeqGbtNI3SqgfzIVQtu0HGjeRbm8PLeP14SAvs2UyTJLHBqrfNBM6g== X-Received: by 2002:a63:e958:0:b0:380:132:5da8 with SMTP id q24-20020a63e958000000b0038001325da8mr5350322pgj.114.1646585383910; Sun, 06 Mar 2022 08:49:43 -0800 (PST) Received: from hoboy.vegasvil.org ([2601:640:8200:33:e2d5:5eff:fea5:802f]) by smtp.gmail.com with ESMTPSA id z35-20020a631923000000b00373520fddd5sm9680242pgl.83.2022.03.06.08.49.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 06 Mar 2022 08:49:43 -0800 (PST) Date: Sun, 6 Mar 2022 08:49:41 -0800 From: Richard Cochran To: Gerhard Engleder Cc: yangbo.lu@nxp.com, davem@davemloft.net, kuba@kernel.org, mlichvar@redhat.com, vinicius.gomes@intel.com, netdev@vger.kernel.org Subject: Re: [RFC PATCH net-next 0/6] ptp: Support hardware clocks with additional free running time Message-ID: <20220306164941.GC6290@hoboy.vegasvil.org> References: <20220306085658.1943-1-gerhard@engleder-embedded.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220306085658.1943-1-gerhard@engleder-embedded.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Sun, Mar 06, 2022 at 09:56:52AM +0100, Gerhard Engleder wrote: > If hardware would support a free running time additionally to the > physical clock, then the physical clock does not need to be forced to > free running. Thus, the physical clocks can still be synchronized while > vclocks are in use. So... the HW must provide frame time stamps using the one clock and ancillary operations using the other, right? Thanks, Richard