From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-181.mta0.migadu.com (out-181.mta0.migadu.com [91.218.175.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 356AB2E0B6E for ; Wed, 9 Jul 2025 13:33:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752068021; cv=none; b=nU8wsdq0odqM2NI5gus/rochp4S2jOY8AnpzcpkFOH7gLnSi0w1c0MtsWaNHwrJrNMfcvWzlPC9IFk6mYF5aE/8LlfMuNjnPAJovW2DEZcic4c+taihicbPcsVir1l63Z9edzpONmLrL5D245gXLgQTR2vnrbBiHTM73RwfvNhU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752068021; c=relaxed/simple; bh=oBbi2dwj3JlrxNgNY8Hz815kTsf3eBPKfewu1okkeYw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=iNHiAh9/+ssC5zDj/Y88aMjauELT/s3kcZfCYMJHAyHDH2bf3VfNu1hmiOO82blPpKRl1ZcvGjGgqs0pY6hJapxM9wTh6Y8HXelL5bkMtN517tem/t5ylhctZSqJEbm9ozAsnsF01Z+vQQEmmLTjGnpuwRL3/KvS5Un5aORqNQU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=oxeeR58i; arc=none smtp.client-ip=91.218.175.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="oxeeR58i" Message-ID: <96cdeb5c-dd55-4800-9046-09ebbb818e8b@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1752068006; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oBCmCKP8OFqBTk3+dFLXu6PLZZQVW5qJrW4VdVurS6A=; b=oxeeR58i97heGcVCJSXRS5kIf0ZoWpaKVFuA1xKOPE+tM0xYffXEnHqt78071Q38yjPNko Y4QRgF2X96dBafUfFZFFomZzR2RN8iTojzn16xNJ2BGFlpZdo3QQlSlTAnAQukTkr/bWSZ vBhyC3OI7QXek+HvuxOrQSuPL9B5Xfo= Date: Wed, 9 Jul 2025 14:33:21 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH net-next v3 7/7] net: dsa: microchip: Disable PTP function of KSZ8463 To: Tristram.Ha@microchip.com, Woojung Huh , Andrew Lunn , Vladimir Oltean , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Maxime Chevallier , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Marek Vasut , UNGLinuxDriver@microchip.com, devicetree@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250709003234.50088-1-Tristram.Ha@microchip.com> <20250709003234.50088-8-Tristram.Ha@microchip.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Vadim Fedorenko In-Reply-To: <20250709003234.50088-8-Tristram.Ha@microchip.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 09/07/2025 01:32, Tristram.Ha@microchip.com wrote: > From: Tristram Ha > > The PTP function of KSZ8463 is on by default. However, its proprietary > way of storing timestamp directly in a reserved field inside the PTP > message header is not suitable for use with the current Linux PTP stack > implementation. It is necessary to disable the PTP function to not > interfere the normal operation of the MAC. Could you please explain the "proprietary way of storing timestamps"? Maybe you can provide some examples of headers with timestamps?