From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-99.freemail.mail.aliyun.com (out30-99.freemail.mail.aliyun.com [115.124.30.99]) (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 8D73334EEEA; Wed, 17 Dec 2025 12:40:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.99 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765975217; cv=none; b=bnEa6RAxri3M5uuByCAxQBdJYybm8GeK6PVa+zVKy15HTpm2NG64xGCg/PMn5Y62iR2tuTXVwOR1mY3Bq6n9tNs1Y0grW5xpBJFA1fEoKMh0yP2Fe5Bh27pKh1U4ehZQ+R2oX022pZNREHLbwIf0U3EbhYBo4iK0FayUCrEyENA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765975217; c=relaxed/simple; bh=h3rBdCc8vzcf1+28RqdKJYZ5kvf0BpukXPUymtfnUaE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=XEPqToPxBDkKHJeyef+Md+NZYjUaf3RdxjNc7ksY6mF4W9qZ3vq9RJq20ZJsIAEBGXR6zUphNguI+vFob37EGNcHe3ouX4EdxqeKGLRTO7xYuBl3zjya8SavJQQCFAw8lensKz7rgh/4eF+lYZ7wiwxTPcf3T1LFf8lYLKbRnAM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=OgaFBuMJ; arc=none smtp.client-ip=115.124.30.99 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="OgaFBuMJ" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1765975203; h=Message-ID:Date:MIME-Version:Subject:To:From:Content-Type; bh=h3rBdCc8vzcf1+28RqdKJYZ5kvf0BpukXPUymtfnUaE=; b=OgaFBuMJeDxi0FPsmIxPaBz1eUxADEsTPuY4Pun+YhHPyg0vtUVdo0wOwyDew4AgKGT35DSEAVTZwZNyBgsAIgN28CEimbfTPPBEe+DDxtG6ss3tRGho+ixfPp0oIe8vpZUzUJmPlr3wQijpWnqgJIZ+5ghcRdu1nsf2dkeU4ik= Received: from 30.221.129.233(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0Wv3edwX_1765975201 cluster:ay36) by smtp.aliyun-inc.com; Wed, 17 Dec 2025 20:40:02 +0800 Message-ID: Date: Wed, 17 Dec 2025 20:40:01 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v5 1/2] ptp: introduce Alibaba CIPU PHC driver To: Jakub Kicinski Cc: Richard Cochran , andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, xuanzhuo@linux.alibaba.com, dust.li@linux.alibaba.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Gleixner References: <20251030121314.56729-1-guwen@linux.alibaba.com> <20251030121314.56729-2-guwen@linux.alibaba.com> <20251031165820.70353b68@kernel.org> <8a74f801-1de5-4a1d-adc7-66a91221485d@linux.alibaba.com> <20251105162429.37127978@kernel.org> <34b30157-6d67-46ec-abde-da9087fbf318@linux.alibaba.com> <20251127083610.6b66a728@kernel.org> <20251128102437.7657f88f@kernel.org> <9a75e3b2-4d1c-4911-81e4-cab988c24b77@linux.alibaba.com> <20251213075028.2f570f23@kernel.org> <20251216135848.174e010f@kernel.org> From: Wen Gu In-Reply-To: <20251216135848.174e010f@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 2025/12/17 05:58, Jakub Kicinski wrote: > I talked to Thomas Gleixner (added to CC) during LPC and he seemed > open to creating a PHC subsystem for pure time devices in virtualized > environments. Please work with him and other vendors trying to > upstream similar drivers. Thank you for your patience and help. I’ll work with Thomas and other potential vendors, likely starting with an RFC to collect ideas and reach consensus on a dedicated subsystem for PHC in non-NIC scenarios. Regards.