From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-174.mta1.migadu.com (out-174.mta1.migadu.com [95.215.58.174]) (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 2FAF8223DD9 for ; Wed, 23 Apr 2025 10:13:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745403213; cv=none; b=fLQYHgA2ocXUjjphbEE8iVqHwichCb3BW3fhoF0J0zi2NEHQSEO0dvIns0cC0a7Qww+VzUbocUTg3fqIkMICyAoDHLvT+sJ+YPox4cxKngcXPevBv9IQ/4l6ZhhLOTYLFnZHN6L+IoME4mWX3zaffllI+QG2gbJjuqaUQOuO2z4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745403213; c=relaxed/simple; bh=HQBDsgYZhBPh59w6ihf5bVFm3ivJjOfhgpGq8Icqh9Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=O68jXoKi5Vj5kQqGb+pYvztkw5SCRchul6ynpZEys3UIg/hO5JZFa5jQ525jW49Dd5iWnTxlF+AsMri1RoMi4MLuyF5eXvQT2FlKNZ0MgDCifa3JV+OhwRYVRePUFCwm/MHlCVGyWkaLZqz5/Sy7/8Kx37/ojeW1zEID+Er1QQk= 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=goA6K/Cr; arc=none smtp.client-ip=95.215.58.174 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="goA6K/Cr" Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1745403199; 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=Djwsr22QmQbVxK6LfymSVfTiOD/EcmVyLiPImXUyaz0=; b=goA6K/Cr5Q+5ioR3MqXCSe9KFZmoTIvV9AlPnUyxwUowIU+3TGwF+UbKQBrzuFLcBmKk6V 9Jf9OPR2/Cxmp8oEcewb5XDcvNs+KHmGHjJAbPqAlAMN/BPS8GbDNp5a6WrlusCbu1WyFp yPgN0Cxn33yMCmuGafEMWuGYpeIFPHU= Date: Wed, 23 Apr 2025 11:13:10 +0100 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH net-next 0/6] gve: Add Rx HW timestamping support To: Harshitha Ramamurthy , netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, jeroendb@google.com, andrew+netdev@lunn.ch, willemb@google.com, ziweixiao@google.com, pkaligineedi@google.com, yyd@google.com, joshwash@google.com, shailend@google.com, linux@treblig.org, thostet@google.com, jfraker@google.com, horms@kernel.org, linux-kernel@vger.kernel.org References: <20250418221254.112433-1-hramamurthy@google.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: <20250418221254.112433-1-hramamurthy@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 18/04/2025 23:12, Harshitha Ramamurthy wrote: > From: Ziwei Xiao > > This patch series add the support of Rx HW timestamping, which sends > adminq commands periodically to the device for clock synchronization with > the nic. It looks more like other PHC devices, but no PTP clock is exported. Do you plan to implement TX HW timestamps for this device later? Is it possible to use timecounter to provide proper PTP device on top of GVE? > > John Fraker (5): > gve: Add device option for nic clock synchronization > gve: Add adminq command to report nic timestamp. > gve: Add rx hardware timestamp expansion > gve: Add support for SIOC[GS]HWTSTAMP IOCTLs > gve: Advertise support for rx hardware timestamping > > Kevin Yang (1): > gve: Add initial gve_clock > > drivers/net/ethernet/google/gve/Makefile | 2 +- > drivers/net/ethernet/google/gve/gve.h | 14 +++ > drivers/net/ethernet/google/gve/gve_adminq.c | 51 ++++++++- > drivers/net/ethernet/google/gve/gve_adminq.h | 26 +++++ > drivers/net/ethernet/google/gve/gve_clock.c | 103 ++++++++++++++++++ > .../net/ethernet/google/gve/gve_desc_dqo.h | 3 +- > drivers/net/ethernet/google/gve/gve_ethtool.c | 23 +++- > drivers/net/ethernet/google/gve/gve_main.c | 47 ++++++++ > drivers/net/ethernet/google/gve/gve_rx_dqo.c | 26 +++++ > 9 files changed, 290 insertions(+), 5 deletions(-) > create mode 100644 drivers/net/ethernet/google/gve/gve_clock.c >