From patchwork Fri Jan 19 10:47:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Horatiu Vultur X-Patchwork-Id: 13523617 X-Patchwork-Delegate: kuba@kernel.org Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (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 4E73D3C6BF; Fri, 19 Jan 2024 10:49:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.154.123 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705661356; cv=none; b=CiUSHCFnR3QufiR+rQNgLk6Ypn8IqPOOntfVA9rAYQxpwRe4HRMlUSatm6/dZGLnGZ49OPEDHpwQXD7FK80D8hReLTNnNj7ej2fjXifjSFj/X/a7gHCBJbY+bu7t9YBTePxbAQLEVLzW0EYqMBpmAGtwTQCpIw7EkhIVrqWuQDY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705661356; c=relaxed/simple; bh=OD42keRteXfeJNfHf9czpfOXSgZwqxy+OazuqeDsJr4=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=Ls6uRG0B6op2I82VjtpEgCyq3oASML54pLmfkbxog0a8Uf+xJE269r5iT8iDFetw3yj06rIbZT1MXEXE8XdeNHwJhCgYkJ8g2ML+Jor+VtKi930fGnLkQrRpeLJ9rPtjwruBUKx8OIanMF5xgYA7JFkjN8Y6hGwi6g23XLiT934= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=B3bdiBTh; arc=none smtp.client-ip=68.232.154.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="B3bdiBTh" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1705661354; x=1737197354; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=OD42keRteXfeJNfHf9czpfOXSgZwqxy+OazuqeDsJr4=; b=B3bdiBTh0eySTvkfkxQckBi803STaY7SjFInuN1cubqgtVCgTQrRmB9L 5BRDc9/NLROosaYT5XYF4tGBl+C3kEsf2pxKqdQHlXeP17Nkf1igyGOKu dDuycyAg3CIsYIYNgz4oNY9RfYSP63nXTOk/gtA+Esozvqh9GuME06BdA XXBeWQ1vCssMqJy2Jfs6ctJna/khznmrz0x+Wj9qJ7baqUe8JWqnbEe6p 0OfiShblLyV+xcM0KeRmSC7mxMjt1fdxdAiP1lB8OUXIKqffDRqFyXg3i iW1ds3D+/KzWhntvbSE54wb1ERLHzSp5Mjhf10Ig/1AdQqj/0HKK52Zal g==; X-CSE-ConnectionGUID: AU1uLqN+QT6f+gaW+zlRCg== X-CSE-MsgGUID: x3hB8vsiT3S8hYAHRb4D/w== X-IronPort-AV: E=Sophos;i="6.05,204,1701154800"; d="scan'208";a="14992138" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 19 Jan 2024 03:49:09 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 19 Jan 2024 03:48:42 -0700 Received: from DEN-DL-M31836.microsemi.net (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Fri, 19 Jan 2024 03:48:39 -0700 From: Horatiu Vultur To: , , , , , , , , , , CC: , , Horatiu Vultur , Divya Koppera Subject: [PATCH net v3] net: micrel: Fix PTP frame parsing for lan8814 Date: Fri, 19 Jan 2024 11:47:50 +0100 Message-ID: <20240119104750.878119-1-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org The HW has the capability to check each frame if it is a PTP frame, which domain it is, which ptp frame type it is, different ip address in the frame. And if one of these checks fail then the frame is not timestamp. Most of these checks were disabled except checking the field minorVersionPTP inside the PTP header. Meaning that once a partner sends a frame compliant to 8021AS which has minorVersionPTP set to 1, then the frame was not timestamp because the HW expected by default a value of 0 in minorVersionPTP. This is exactly the same issue as on lan8841. Fix this issue by removing this check so the userspace can decide on this. Fixes: ece19502834d ("net: phy: micrel: 1588 support for LAN8814 phy") Signed-off-by: Horatiu Vultur Reviewed-by: Maxime Chevallier Reviewed-by: Divya Koppera --- v2->v3: - drop second patch as that patch should not target net but net-next v1->v2: - replace hardcoded values with macros for PTP version --- drivers/net/phy/micrel.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index bf4053431dcb3..43520ac0f4e00 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -120,6 +120,11 @@ */ #define LAN8814_1PPM_FORMAT 17179 +#define PTP_RX_VERSION 0x0248 +#define PTP_TX_VERSION 0x0288 +#define PTP_MAX_VERSION(x) (((x) & GENMASK(7, 0)) << 8) +#define PTP_MIN_VERSION(x) ((x) & GENMASK(7, 0)) + #define PTP_RX_MOD 0x024F #define PTP_RX_MOD_BAD_UDPV4_CHKSUM_FORCE_FCS_DIS_ BIT(3) #define PTP_RX_TIMESTAMP_EN 0x024D @@ -3150,6 +3155,12 @@ static void lan8814_ptp_init(struct phy_device *phydev) lanphy_write_page_reg(phydev, 5, PTP_TX_PARSE_IP_ADDR_EN, 0); lanphy_write_page_reg(phydev, 5, PTP_RX_PARSE_IP_ADDR_EN, 0); + /* Disable checking for minorVersionPTP field */ + lanphy_write_page_reg(phydev, 5, PTP_RX_VERSION, + PTP_MAX_VERSION(0xff) | PTP_MIN_VERSION(0x0)); + lanphy_write_page_reg(phydev, 5, PTP_TX_VERSION, + PTP_MAX_VERSION(0xff) | PTP_MIN_VERSION(0x0)); + skb_queue_head_init(&ptp_priv->tx_queue); skb_queue_head_init(&ptp_priv->rx_queue); INIT_LIST_HEAD(&ptp_priv->rx_ts_list);