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 8A5BDE7D0A8 for ; Thu, 21 Sep 2023 20:26:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231917AbjIUU00 (ORCPT ); Thu, 21 Sep 2023 16:26:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231916AbjIUUZ6 (ORCPT ); Thu, 21 Sep 2023 16:25:58 -0400 Received: from mail-pg1-x532.google.com (mail-pg1-x532.google.com [IPv6:2607:f8b0:4864:20::532]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BBD1655BA; Thu, 21 Sep 2023 10:50:37 -0700 (PDT) Received: by mail-pg1-x532.google.com with SMTP id 41be03b00d2f7-564af0ac494so853685a12.0; Thu, 21 Sep 2023 10:50:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1695318636; x=1695923436; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=9Lp00J6zbysQ8U2olBiWnBUllQFV2OnKj6qqlkk1XgQ=; b=Q7v18kTul10IvqQPubPDEojMgN+1Jp1HZd+yZvRRY4XpEInWmZtJuSLn7WmQKBYKRY tSdpH9nFdeyyl54GzXLJOJwH1iDnevLW1P20vrnOvmqMj277wudK5x0gVT53C1AkiFc1 h0yzlKW0AoHg7pliRDIdA/pi/1iecSvSiOyHNl1iEXSifJJG0Nme2gH01EDQ6tFk8NHp WVV2eZWtgsq6p6PFh+c+MyidQw4OIzU4oz0Rb2bDpq4zxUeNThAqRF+YteJ4DJ5Smuux bsj2KYSwcv0TDyjo+EHxrjh+rkw5RzTSIATlaQuhNbbeVHoMAcmeMdEg1PW9FpGAAxgM BRoA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695318636; x=1695923436; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=9Lp00J6zbysQ8U2olBiWnBUllQFV2OnKj6qqlkk1XgQ=; b=G7hbs9QMXSCXH1uSII5e5vXZ3ExMsLEH9GB0HAWP7+JHD9gfPgwhcmKo+xeb6lpC0F RWZ4R3lHBrpIAe4m8IutPVlOLcEZVnQWxJtnqZAKh4lyeQ26gIzGrCF+QIBRtwBtZefn i8VgVTnUT3+hWtsb845UCMxOEKvBkQFct07Dt1zoBgWSA93shKxoWcqtvbZyd1pWHld6 5J3CPKiEHMgPGUTc2YR09lGhg+O5PUaRuxhIZf7ID5tdbFmwaCnRiHZAcX7g4/eMvO5m RFJThjwfrNstDlh/oKTkZ43r5Dc6xFQbfesFq1jlA0RlwJmv5mesDUHhSSoCGxy7r6vH a5cA== X-Gm-Message-State: AOJu0YzE8XK7+EXEArowZyGxRyVrARb1G5rNtKNdiQTB1yDokwlqdBwq hPGBFv1DyzvYg3H6FmhsxlM= X-Google-Smtp-Source: AGHT+IE7UJ6hYq2t3odvKnj1OZgtt6CWAdhXxSjFmzJDNiIjPTZrtGFl/0+W4Cg0cp1PsPUwW0M7Mg== X-Received: by 2002:a17:90b:3786:b0:274:77df:50cd with SMTP id mz6-20020a17090b378600b0027477df50cdmr6002734pjb.9.1695318635785; Thu, 21 Sep 2023 10:50:35 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.googlemail.com with ESMTPSA id r6-20020a17090a438600b00263f41a655esm1817452pjg.43.2023.09.21.10.50.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 Sep 2023 10:50:35 -0700 (PDT) Message-ID: Date: Thu, 21 Sep 2023 10:50:33 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH v5 net-next 3/5] net: dsa: tag_ksz: Extend ksz9477_xmit() for HSR frame duplication Content-Language: en-US To: Lukasz Majewski , Tristram.Ha@microchip.com, Eric Dumazet , Andrew Lunn , davem@davemloft.net, Woojung Huh , Vladimir Oltean , Oleksij Rempel Cc: Jakub Kicinski , Paolo Abeni , UNGLinuxDriver@microchip.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org References: <20230920114343.1979843-1-lukma@denx.de> <20230920114343.1979843-4-lukma@denx.de> From: Florian Fainelli In-Reply-To: <20230920114343.1979843-4-lukma@denx.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/20/23 04:43, Lukasz Majewski wrote: > The KSZ9477 has support for HSR (High-Availability Seamless Redundancy). > One of its offloading (i.e. performed in the switch IC hardware) features > is to duplicate received frame to both HSR aware switch ports. > > To achieve this goal - the tail TAG needs to be modified. To be more > specific, both ports must be marked as destination (egress) ones. > > The NETIF_F_HW_HSR_DUP flag indicates that the device supports HSR and > assures (in HSR core code) that frame is sent only once from HOST to > switch with tail tag indicating both ports. > > Signed-off-by: Lukasz Majewski Reviewed-by: Florian Fainelli -- Florian