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 4979EC001E0 for ; Thu, 27 Jul 2023 13:36:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232850AbjG0Ngt (ORCPT ); Thu, 27 Jul 2023 09:36:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231433AbjG0Ngs (ORCPT ); Thu, 27 Jul 2023 09:36:48 -0400 Received: from mail-pg1-x534.google.com (mail-pg1-x534.google.com [IPv6:2607:f8b0:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C0A922728; Thu, 27 Jul 2023 06:36:47 -0700 (PDT) Received: by mail-pg1-x534.google.com with SMTP id 41be03b00d2f7-55b5a37acb6so127003a12.0; Thu, 27 Jul 2023 06:36:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1690465007; x=1691069807; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=xOaiTAn8rGdkF5zlwNwyGQldTdN+p5xKE7WTqru15pI=; b=pMLpHBb6BmMtboe1C4sJxIkYr8dNkmU+gKItdL4KdTIAwZPMTR2WEHApDlsNV/exj1 vy0HrrjjphyqbyWiPKGTuaxEYwpOglO2en25CdqUE9j5dhZ2a59goHyfmFznLDJueic8 Ftx/ZuOfCZHWqLSYtBEVxldkYBeqd0YopDBzFV/paNo8mbOFGRNRgi9/5tupwMfANpMu Df5wCQmmFutdRrUMGt0Ju9G8B7vYQyrMyTlUYpmo1Vx4/K6QxFP5PUyUNLbfG4gtky2Y diAvLRVMBLWfPAkZ1CxES0UoHywH5CDidcKxVnCputXmfMZgTGXQesEw+D8ECKrNFyrc ZtCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690465007; x=1691069807; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=xOaiTAn8rGdkF5zlwNwyGQldTdN+p5xKE7WTqru15pI=; b=XuncTDNiJJMMnenuVaL7XM87dP7qbbFITrDHRRc/yffV8+gkRWYJn9e5MgmVk2UyRa d6fIlwtGFTND0xFfPMaDEEexFhh2aDaUCss2o0alIwdJhKUaMh/ArWOGzDpHs4fXbep+ s8SeWTV1jMOgNFSbxQISBGzbh+0pqGPp3MDa6sNI534lDm1LzgdDS7h7syzq64fm6M1z lAVajiySOhyoU0ZmmELatNuvIYjodNgQuJ2Iqaj1pf12qqnRhU4IFagzZch0GTV4FUWL YItLb3Q6e37VQfMK2i1x44DYw1RHwR0a71dl5WnnpG+68327P3SOe50U2QFImND0Oswn TyJQ== X-Gm-Message-State: ABy/qLZlY4SoZnKS+TLeyMbazxUlB+KYHR0UOL3qd7tGjhSMzWVEv1c7 nFFgsWHJNqvz3K4XLBONkUg= X-Google-Smtp-Source: APBJJlHCafwH9S3OPhpqA+8W7Lczg5j327l0RTvLcvMbx0d1mOFIr6oHUvQ+C0fUqmdUivM04gTd/g== X-Received: by 2002:a17:90a:1189:b0:263:f36e:d610 with SMTP id e9-20020a17090a118900b00263f36ed610mr4812722pja.0.1690465007141; Thu, 27 Jul 2023 06:36:47 -0700 (PDT) Received: from hoboy.vegasvil.org ([2601:640:8000:54:e2d5:5eff:fea5:802f]) by smtp.gmail.com with ESMTPSA id fy16-20020a17090b021000b00267f9bf21ebsm2899810pjb.0.2023.07.27.06.36.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jul 2023 06:36:46 -0700 (PDT) Date: Thu, 27 Jul 2023 06:36:43 -0700 From: Richard Cochran To: Johannes Zink Cc: Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Russell King , patchwork-jzi@pengutronix.de, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, kernel test robot Subject: Re: [PATCH v2] net: stmmac: correct MAC propagation delay Message-ID: References: <20230719-stmmac_correct_mac_delay-v2-1-3366f38ee9a6@pengutronix.de> <729dd79e-83aa-0237-1edd-1662a6ae28cd@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <729dd79e-83aa-0237-1edd-1662a6ae28cd@pengutronix.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 27, 2023 at 09:20:10AM +0200, Johannes Zink wrote: > Hi Richard, > > On 7/26/23 22:57, Richard Cochran wrote: > > On Mon, Jul 24, 2023 at 12:01:31PM +0200, Johannes Zink wrote: > > > > Earlier versions of the IP core return zero from these... > > > > > +#define PTP_TS_INGR_LAT 0x68 /* MAC internal Ingress Latency */ > > > +#define PTP_TS_EGR_LAT 0x6c /* MAC internal Egress Latency */ > > > > good catch. Gonna send a v3 with a check to and set the values for dwmac v5 only. AFAICT there is no feature bit that indicates the presence or absence of these two registers. Are you sure that *all* v5 IP cores have these? I am not sure. Thanks, Richard