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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DABFED10369 for ; Tue, 25 Nov 2025 23:19:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ukMBHd2xprh1k/N8cNGlN+MYj/FJerUlkN0OU+0nrSM=; b=FjDTXAclVHu1pnwMEfnUg7Ctcb gxz8zZbKlc0kxEPnd0cpuxta07sulRJHxeJcLvxq57U0NOViR32n1LlPY6qa20pni0bulk/8voNUM cThbX9uzkcfLhhGu8ldQboxUnZZjua1bO/kjb2TGdC23m4sBHyaojZllz9PTxuwBXSAx1YVA0/lFK Ebx48vc6JF/mM1qTCuKoakWOM7pnMeD8U6f7oCWv/8YbxQFHLQRTgMriPp5a/3VaU4BHXqutqSKJX bYCX1N0MnkwlrxR0p5pKz63P7QvFxpLlbYHmn6oQBvpQjS6h3rZPjZ3tewThxVczGzJGl44XDnN0h ywEmnMZg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vO2Jn-0000000E3IH-2dzs; Tue, 25 Nov 2025 23:19:31 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vO2Jj-0000000E3Hd-45mh for linux-arm-kernel@lists.infradead.org; Tue, 25 Nov 2025 23:19:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ukMBHd2xprh1k/N8cNGlN+MYj/FJerUlkN0OU+0nrSM=; b=Tmkl9DgGtXT1tFoDpAdbmsXLu2 wPfi67ITjX3MMczRG20rf2PbUhq4ZGCG/KDNkBGrpGO+cN+ZFzUAi1UFWV1q9dAU55D65VFvfK/+v CijIMS61dPmELwsL21oN9hO8F057RmwJbKrEu0o9u66hmRyhu7TYQJL4I1Xcyzr9ienz1xQ78akqf RquMtihWgU9RyHFTEoJ+Hw2IsjlFXCPXyzGrOLfg2QnvLGfG0eFuUlqnxqH1oCpROSyT/AjVs7xCl VuniJyZ9A2qMyXOxayYK+EASCMWoEKAOE3jDp0UaeuKiqTAxpRI140EdlLrjJIwKMqVxAEAdPTBM4 4wrPwEKQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:56056) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vO2JU-000000003IU-2m6E; Tue, 25 Nov 2025 23:19:12 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1vO2JQ-000000001AF-0Uv7; Tue, 25 Nov 2025 23:19:08 +0000 Date: Tue, 25 Nov 2025 23:19:07 +0000 From: "Russell King (Oracle)" To: rohan.g.thomas@altera.com Cc: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Richard Cochran , Jose Abreu , Fugang Duan , Kurt Kanzenbach , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next] net: stmmac: Fix E2E delay mechanism Message-ID: References: <20251125-ext-ptp-fix-v1-1-83f9f069cb36@altera.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251125-ext-ptp-fix-v1-1-83f9f069cb36@altera.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251125_151928_018182_47B77153 X-CRM114-Status: UNSURE ( 9.88 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Nov 25, 2025 at 10:50:02PM +0800, Rohan G Thomas via B4 Relay wrote: > From: Rohan G Thomas > > For E2E delay mechanism, "received DELAY_REQ without timestamp" error > messages shows up for dwmac v3.70+ and dwxgmac IPs. > > This issue affects socfpga platforms, Agilex7 (dwmac 3.70) and > Agilex5 (dwxgmac). According to the databook, to enable timestamping > for all events, the SNAPTYPSEL bit in the MAC_Timestamp_Control bits > register must be set to 2'b00, and the TSEVNTENA bit must be cleared > to 0'b0. Are you sure 3.70 is the appropriate point. According to the 3.74 databook, SNAPTYPSEL changed between 3.5 and 3.6. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!