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 B950DC4332F for ; Fri, 9 Dec 2022 15:08:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230178AbiLIPIL (ORCPT ); Fri, 9 Dec 2022 10:08:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58502 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230245AbiLIPHp (ORCPT ); Fri, 9 Dec 2022 10:07:45 -0500 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D7DF51A053; Fri, 9 Dec 2022 07:07:44 -0800 (PST) Received: by mail-ej1-x635.google.com with SMTP id n20so12253849ejh.0; Fri, 09 Dec 2022 07:07:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; 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=fRctk+k0gPaHBTzrNjrRIZoG3JHVyfVBq+4oznyPZY8=; b=EBFa1314y9Nxx47i5XxY+OwD5FV9EntMPMH5BjpTecf3oK7JZFUd1TAxfbitF+Ztxg GHD40j1CshemgpggpWnydQtxn3ncEBeMzr3l2KI0xZlOHRcct6xi247MpDHsx9bBni4l sTmaUQUTp4yVv4HgRmC9LudjuAt9r+a6PahHmJnXPJhz0wvN3Z8lVDpOY7SvcoziflbE A4IdGTBeDazK6LINtxWQLQ2DwU3Dl4UicwhS6DsYIiWGXrOr06DNtIQJc3mbq0m7y3bn QVkFvirOSpkgF68NRfNj3z7OVb3vmY57YW2RKn+MKcsu+lZEXnbFRv3Vv0dDcLR30gQZ XCBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=fRctk+k0gPaHBTzrNjrRIZoG3JHVyfVBq+4oznyPZY8=; b=AMwPDCDGUahpMLkfYG/xUWY8VvgqnDsaIk/MOYqHQCWDMcFOJ52XXzSNnnECd2Pe75 GphWlQZ3+7DdJDN6ia5+R+x8cLxBinerLgXw2Vj9BVknZO0cUwbRr8p3UEyPtAoDeV04 uG6b1+ixeRAEveQFwzxHV0GYB1i6CSBYDSzwcVKDZ7PlDkK5PnjUJYbKoVTu7kSkjsfu 7P+Cj/qfCXVUEDAGDFPG/aQ5iqRq6INQ8tEOc+DSMwnD6zrzDzQ67FKrlJ1shIpt+WrG iknyLRZFLIktfDaSaFBlOlLSrvSB6t1SROLg3Vr4TiEvbDoOnDx1hFXbFeFzqkpURgQl MaTQ== X-Gm-Message-State: ANoB5pkE++9n8umf5wPXFVrBg0qq2obDtNiL8oTI+vahSaO9qULJtvcZ Sq22I8U3rYA0U4EAKe1dA4pbhDCQr2d3tw== X-Google-Smtp-Source: AA0mqf6NSSbJT9wonF6KPMM63FOXAmNbPxGapGV1HtdiKoN7DE5ba56Kz4/5TZsH9gxcdLhY6O9L0g== X-Received: by 2002:a17:907:10c9:b0:7c0:cee0:2f55 with SMTP id rv9-20020a17090710c900b007c0cee02f55mr5598486ejb.28.1670598462809; Fri, 09 Dec 2022 07:07:42 -0800 (PST) Received: from skbuf ([188.27.185.190]) by smtp.gmail.com with ESMTPSA id o7-20020a17090608c700b0078d9cd0d2d6sm23977eje.11.2022.12.09.07.07.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Dec 2022 07:07:42 -0800 (PST) Date: Fri, 9 Dec 2022 17:07:39 +0200 From: Vladimir Oltean To: Arun Ramadoss Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, woojung.huh@microchip.com, UNGLinuxDriver@microchip.com, andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux@armlinux.org.uk, Tristram.Ha@microchip.com, richardcochran@gmail.com, ceggers@arri.de Subject: Re: [Patch net-next v3 08/13] net: dsa: microchip: ptp: add packet transmission timestamping Message-ID: <20221209150739.bddwnli5ddaxmws5@skbuf> References: <20221209072437.18373-1-arun.ramadoss@microchip.com> <20221209072437.18373-1-arun.ramadoss@microchip.com> <20221209072437.18373-9-arun.ramadoss@microchip.com> <20221209072437.18373-9-arun.ramadoss@microchip.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221209072437.18373-9-arun.ramadoss@microchip.com> <20221209072437.18373-9-arun.ramadoss@microchip.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri, Dec 09, 2022 at 12:54:32PM +0530, Arun Ramadoss wrote: > From: Christian Eggers > > This patch adds the routines for transmission of ptp packets. When the > ptp pdelay_req packet to be transmitted, it uses the deferred xmit > worker to schedule the packets. > During irq_setup, interrupt for Sync, Pdelay_req and Pdelay_rsp are > enabled. So interrupt is triggered for all three packets. But for > p2p1step, we require only time stamp of Pdelay_req packet. Hence to > avoid posting of the completion from ISR routine for Sync and > Pdelay_resp packets, ts_en flag is introduced. This controls which > packets need to processed for timestamp. > After the packet is transmitted, ISR is triggered. The time at which > packet transmitted is recorded to separate register. > This value is reconstructed to absolute time and posted to the user > application through socket error queue. > > Signed-off-by: Christian Eggers > Co-developed-by: Arun Ramadoss > Signed-off-by: Arun Ramadoss > --- Reviewed-by: Vladimir Oltean