From patchwork Thu Dec 19 20:42:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Hilber X-Patchwork-Id: 13915762 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 2DAC53FD1; Thu, 19 Dec 2024 20:43:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734640996; cv=none; b=uGUGMaxOyYw3ytkecGt9YooBFQDPSj6krC4m+wcfSDGZnVFhCvT7oLj/Kbyupm4QBpuhEn5mv0UTgMrPjiZyIGsqCQHU5nkmhGimYn4rAa6azH6QXDCh2/M39dlRTeGX/BaXNl4tVnszR3uukEoYyIEVAMDGV1fU4TVUXaF+zZc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734640996; c=relaxed/simple; bh=SBBbcrBX+Vk77S2+bxd2AMqwNH5jo2J+2V2RaUvSlEM=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=lY300EXKB8psj5nrx8JDmy9FHxD2Qqz1p96IQhAUhywCnhXGfbfu3IGCgVH9QOPht2ATlvn3UkJpSRlKsqToMofNr/nvYQT5hUPboV+N4V4LNj4D7W9m9y8mNSGevh/Cu08nC6kZWvew6tv0gd9A0y9mAesT5xtTF/ZccgzDwL8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=Hirg2Q7I; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="Hirg2Q7I" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4BJHKrH1015075; Thu, 19 Dec 2024 20:42:46 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=qcppdkim1; bh=JDSWUwXe1gR2On55ugw/yZ 9uh7N0B2gfTrX8HgykqsU=; b=Hirg2Q7IRSLIxdVty0Fipom/WtEnyN4O1upYOS xM3K0d+B6s6LrbZU8tVFFie4Au0pRkfrzrkEg4DcFs8Bd/wTf3fLN9bVpY0R/L2V B43Xy+s4BYFL+i2NIDhgCgVLRgLa7c2kE2WYInJuoiGEZY/MJoyHlEXd2VdCXMpC Vqhaf/KeF+2XzjEn1Xpl4irLcCQvyTDFmEUdyjvDYEflPap6jGZHtIDS2pAgVvdA jMTZb7GHzM7D3MC1/WUFAcVTJGtAqX1i33ClkcP/FksqBnjjtzKatuLUAhy3PVua BHssxdZOj2VOzeXDDatJ0v31N/gfBTnvkvruG1dJ/uicnssw== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 43mqt80dtv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 19 Dec 2024 20:42:46 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 4BJKgi9a011364 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 19 Dec 2024 20:42:44 GMT Received: from PHILBER.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Thu, 19 Dec 2024 12:42:39 -0800 From: Peter Hilber To: , , , CC: Trilok Soni , Srivatsa Vaddagiri , Peter Hilber , "David S. Miller" , =?utf-8?q?Eugenio_P=C3=A9rez?= , "Michael S. Tsirkin" , Andrew Lunn , Eric Dumazet , Jakub Kicinski , Jason Wang , Paolo Abeni , Richard Cochran , Shuah Khan , Xuan Zhuo , , , "David Woodhouse" , "Ridoux, Julien" , "John Stultz" , Thomas Gleixner , "Stephen Boyd" , Anna-Maria Behnsen Subject: [RFC PATCH 0/2] ptp: add PTP_SYS_OFFSET_STAT ioctl, support it in virtio_rtc Date: Thu, 19 Dec 2024 21:42:02 +0100 Message-ID: <20241219204208.3160-1-quic_philber@quicinc.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: WZjrY0ycIR4EgJb4WPifMdayeJ-b49VT X-Proofpoint-GUID: WZjrY0ycIR4EgJb4WPifMdayeJ-b49VT X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 suspectscore=0 priorityscore=1501 spamscore=0 mlxlogscore=777 malwarescore=0 impostorscore=0 phishscore=0 clxscore=1011 lowpriorityscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412190164 X-Patchwork-State: RFC This RFC patch series proposes a new ioctl PTP_SYS_OFFSET_STAT and adds support for it in the proposed virtio_rtc driver [1]. The new PTP_SYS_OFFSET_STAT ioctl provides a cross-timestamp like PTP_SYS_OFFSET_PRECISE2, plus any the following status information (for now): - for UTC timescale clocks: leap second related status, - clock accuracy. The second commit adds support for the ioctl in the proposed virtio_rtc driver, and hence depends on the patch series "Add virtio_rtc module" [1]. [1] https://lore.kernel.org/lkml/20241219201118.2233-1-quic_philber@quicinc.com/T/#t Signed-off-by: Peter Hilber Peter Hilber (2): ptp: add PTP_SYS_OFFSET_STAT for xtstamping with status virtio_rtc: Support PTP_SYS_OFFSET_STAT ioctl drivers/ptp/ptp_chardev.c | 39 ++++++++ drivers/ptp/ptp_clock.c | 9 ++ drivers/virtio/Kconfig | 4 +- drivers/virtio/virtio_rtc_driver.c | 122 +++++++++++++++++++++++- drivers/virtio/virtio_rtc_internal.h | 3 +- drivers/virtio/virtio_rtc_ptp.c | 25 +++-- include/linux/ptp_clock_kernel.h | 31 ++++++ include/uapi/linux/ptp_clock.h | 130 +++++++++++++++++++++++++- tools/testing/selftests/ptp/Makefile | 2 +- tools/testing/selftests/ptp/testptp.c | 126 ++++++++++++++++++++++++- 10 files changed, 471 insertions(+), 20 deletions(-) base-commit: 8a8009abbfa04e58f1b01b20534cac9e8fe61a46