From nobody Mon Nov 25 22:28:16 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 4FDFA136E21; Wed, 23 Oct 2024 15:49:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698587; cv=none; b=QPp8u7mENENplFTkykQMAs5YOb0Ar6MumxlXjcNdM0QhiuOyb6tXKOOe47x26NaWvG+Lv/0qFCLg5MhOq2F/yTwRl/A8XjYzF0YxqPYRaOQcpWlmbO4MCokhJ1l7olTIaJCltJx4OMMn1bmflbDxoLHPLpO1QB/+YeaKLbxEZn0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698587; c=relaxed/simple; bh=iOMvnmy/90zzok73IJBisUyqD6PHRAxmNiX6LWYKeoc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=TPDpSF+/akQkYsCiRF85SbqR0qNj5klQgwF4grZGGT02azKYInvJzR/y6nWTTzvG04zMqNww2t73rO6fReijxfACjZ5PHOlVBzvQm+v7UJNivFZULupXnTNSTuUT1+OYc0uqYHBtGo+GW/iVGMK9F5nmNP4jiNu0eDYnrJTdAhk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=mCIJXoKX; arc=none smtp.client-ip=217.70.183.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="mCIJXoKX" Received: by mail.gandi.net (Postfix) with ESMTPSA id 1F91760007; Wed, 23 Oct 2024 15:49:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1729698577; 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=GU6SrjYmHXAoTubRlkHJYiK7Q+r5wRUJqJK4SJ0TX/I=; b=mCIJXoKXtU+HdIGJT+O1QIfqks9jV+5lGnOlH/iyWls5uQV5AFklvwtl+jHcfI4A92YI/N rKOmHXIjJ59QgRxzCov3OFSB9WoGsP1o7DumSvRzRbP0f1HT4Z9OT2R2aDiUGFzOhJut4I pFztV0seX6FQA4K7jTdGtl9ny+OQcY9g0DUUpotvJp6mXxbdFXiHrz6r/Yueg/hZNH7fxM vmCQwmaylls/FoWWiaXPO5Yu50CkoPSw7uNoUq/PSAakK66lMOPjUx2PPvzNK4qWEGP5bh Y9tO0hmGDHPu2fCCLu33+iic+5z+NCuLnTVNqHlMm2M7VQNg+z3DhRxCeWWBHw== From: Kory Maincent Date: Wed, 23 Oct 2024 17:49:11 +0200 Subject: [PATCH net-next v18 01/10] net: Make dev_get_hwtstamp_phylib accessible Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-1-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com Make the dev_get_hwtstamp_phylib function accessible in prevision to use it from ethtool to read the hwtstamp current configuration. Reviewed-by: Florian Fainelli Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Change in v8: - New patch Change in v10: - Remove export symbol as ethtool can't be built as a module. - Move the declaration to net/core/dev.h instead of netdevice.h --- net/core/dev.h | 2 ++ net/core/dev_ioctl.c | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/net/core/dev.h b/net/core/dev.h index 7881bced70a9..a1267cff715e 100644 --- a/net/core/dev.h +++ b/net/core/dev.h @@ -285,5 +285,7 @@ static inline void dev_xmit_recursion_dec(void) int dev_set_hwtstamp_phylib(struct net_device *dev, struct kernel_hwtstamp_config *cfg, struct netlink_ext_ack *extack); +int dev_get_hwtstamp_phylib(struct net_device *dev, + struct kernel_hwtstamp_config *cfg); =20 #endif diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c index 473c437b6b53..0267564664b4 100644 --- a/net/core/dev_ioctl.c +++ b/net/core/dev_ioctl.c @@ -266,8 +266,8 @@ static int dev_eth_ioctl(struct net_device *dev, * -EOPNOTSUPP for phylib for now, which is still more accurate than letti= ng * the netdev handle the GET request. */ -static int dev_get_hwtstamp_phylib(struct net_device *dev, - struct kernel_hwtstamp_config *cfg) +int dev_get_hwtstamp_phylib(struct net_device *dev, + struct kernel_hwtstamp_config *cfg) { if (phy_is_default_hwtstamp(dev->phydev)) return phy_hwtstamp_get(dev->phydev, cfg); --=20 2.34.1 From nobody Mon Nov 25 22:28:16 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 593701B4F24; Wed, 23 Oct 2024 15:49:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698588; cv=none; b=c1X8S8Z5uJ0dLWUD/aNBk/SePGRPBoLZRJdDN06cI4++5R+LGJv+01HtP0EMD6+wwv1ZFygQk+1dsBJj8SRqe9s/J9qOS9vY8nGnRq4RGXNw/tYhADBlk9FWOOR7XcMkTkRHVJkxY0K11+nh21hRs9ltSv4w7Dq6MJoM6W2zQEI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698588; c=relaxed/simple; bh=Z5F+gRuyjpjilrdbA5bMFo7u7sroHcMN3AMvAOTiAgY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ngF6OwMkXMUjHdVHwpaS2v3ENAJDFVxmH4h1AD5dimp5uV8r59xjzcGxoPpCZ2FgpSQWaWhuQNbeYJ35Pyu9k0eZ58y3jFHZ1msvlw/3/zL67QK8whtHjSLI+iqINPjdfHqA8EouOF4zVl91zHy1Xbmq+oXCzJD5tnUcUEVSPjI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=fnMQioEH; arc=none smtp.client-ip=217.70.183.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="fnMQioEH" Received: by mail.gandi.net (Postfix) with ESMTPSA id B828F6000B; Wed, 23 Oct 2024 15:49:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1729698579; 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=NikOutSdp/PZB/lx17k9fqduga0Q4cPoy/WO9ABlm3U=; b=fnMQioEHWnREvas9a09UggoEA/1DBQ7UafOX7vFjP+tCFAtyemuT5I55KF9LBEoTG3el7o ivDXzd1f1z9JkK2UnYWesCwuB6XbC/MjeSqwcf4UoQJ1GsUmsW6Yog7Wr5rQIlxYO2CALs 8Wt6Z3cLQrzUvnJmb0IsV+lDcVv6dheGZjBpAvogjMVtPdpZzrSI3tTnUMAh8fBsLxjHVm OuWEkhNfs+3vMDJ3DMtylD3TCsWcDtOyF5S1gVjs01ZhwH4pJcFgqQAWoILUyPoKpeSUMR n1ecIKHI17sHjFmeI7yC6noQ9gG7hcADusbLPo0TZUjXoOZI2c1cVcxv45LFnQ== From: Kory Maincent Date: Wed, 23 Oct 2024 17:49:12 +0200 Subject: [PATCH net-next v18 02/10] net: Make net_hwtstamp_validate accessible Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-2-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com Make the net_hwtstamp_validate function accessible in prevision to use it from ethtool to validate the hwtstamp configuration before setting it. Reviewed-by: Florian Fainelli Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Change in v8: - New patch Change in v10: - Remove export symbol as ethtool can't be built as a module. - Move the declaration to net/core/dev.h instead of netdevice.h --- net/core/dev.h | 1 + net/core/dev_ioctl.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/net/core/dev.h b/net/core/dev.h index a1267cff715e..9653e2ff89f2 100644 --- a/net/core/dev.h +++ b/net/core/dev.h @@ -287,5 +287,6 @@ int dev_set_hwtstamp_phylib(struct net_device *dev, struct netlink_ext_ack *extack); int dev_get_hwtstamp_phylib(struct net_device *dev, struct kernel_hwtstamp_config *cfg); +int net_hwtstamp_validate(const struct kernel_hwtstamp_config *cfg); =20 #endif diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c index 0267564664b4..2128dc7f5bfb 100644 --- a/net/core/dev_ioctl.c +++ b/net/core/dev_ioctl.c @@ -184,7 +184,7 @@ static int dev_ifsioc_locked(struct net *net, struct if= req *ifr, unsigned int cm return err; } =20 -static int net_hwtstamp_validate(const struct kernel_hwtstamp_config *cfg) +int net_hwtstamp_validate(const struct kernel_hwtstamp_config *cfg) { enum hwtstamp_tx_types tx_type; enum hwtstamp_rx_filters rx_filter; --=20 2.34.1 From nobody Mon Nov 25 22:28:16 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 458B01CB334; Wed, 23 Oct 2024 15:49:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698591; cv=none; b=u//10vMirrIiSRujy4Co4fYnbU8852sNta3YVck6F/odatBwHY4JUucYu5HI4SNeY0M5UDJdiVRKHNmpm+859CfPJl9qM1kM6PwA6Ou8ahHOu3+TyStqjIHLzmCd1nY+L+XCWAH2QPRUevW9RnSTTQRezoCGRmMsnmqGqp0O53U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698591; c=relaxed/simple; bh=+gUUvlaA57OsDeRZq9krqWQP2oYDSQKZWKViDsTiE6I=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=arYU5e/55dwKLABxnD/4QSLcpaRZpMQfgmWodd/iVj6b7CcAt1r0YFNMcuTkLQrnG3r/x2DPfxnzyK8phw7Ryo4LhxnKAoq12C5xNDWVChv14+a99sNtEicp7W7TayFtqlbh3LLpQ+BQhVLuNFElKGgAJCTr0miDn93E8qD4LeY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=VLqq51CU; arc=none smtp.client-ip=217.70.183.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="VLqq51CU" Received: by mail.gandi.net (Postfix) with ESMTPSA id 6B02F6000A; Wed, 23 Oct 2024 15:49:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1729698580; 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=USR+Fzw0NXq+MVkAGU4k4vAzfDhl2SPQnxVoSwYhqsY=; b=VLqq51CUDD0fyx+Y7VY6ZMkMLDOBLt4/ldd6S05kO/8kRPSRvmeoSEfdaR/RZtPE41RqTn /vrtsm2goub7bBjKttvs5p+x0lN7iiBSKD0Jwm3WDzJIPGj1T5vyUW/1L6764EWkQq6PjI O4C6raaz+Ur/8YEUGu17WXinoxWcDUDNdYzlSURK0CnN3Ho7ibeKUz1JyLkbnC6BXRu9ec PtJYR/VHy3OOgeSh3wHgB06sqx7y75ltEGKavEUyKigDDhWxNb3O4LVPIwEXms13OuXXJW cweUWIA9r/r21r8gvMZl1U9Nxydc2PHkJGfdI1az52tkhXiEyNRWh3ns9gEOiw== From: Kory Maincent Date: Wed, 23 Oct 2024 17:49:13 +0200 Subject: [PATCH net-next v18 03/10] ptp: Add phc source and helpers to register specific PTP clock or get information Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-3-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com Prepare for future hardware timestamp selection by adding source and corresponding pointers to ptp_clock structure. Additionally, introduce helpers for registering specific phydev or netdev PTP clocks, retrieving PTP clock information such as hwtstamp source or phydev/netdev pointers, and obtaining the ptp_clock structure from the phc index. These helpers are added to a new ptp_clock_consumer.c file, built as builtin. This is necessary because these helpers will be called by ethtool or net timestamping, which are builtin code. Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Change in v8: - New patch. Change in v10: - Add get and put function to avoid unregistering a ptp clock object used. - Fix kdoc issues. Change in v11: - Remove useless extern. Change in v12: - Add missing return description in the kdoc. Change in v13: - Remove a semicolon which bring errors while not building PTP driver. - Remove few useless EXPORT_SYMBOL(). - Separate PTP consumer symbole which are builtin from PTP provider. Change in v14: - Add back missing EXPORT_SYMBOL(). --- drivers/ptp/Makefile | 5 ++ drivers/ptp/ptp_clock.c | 33 ++++++++++- drivers/ptp/ptp_clock_consumer.c | 100 +++++++++++++++++++++++++++++++ drivers/ptp/ptp_private.h | 7 +++ include/linux/ptp_clock_kernel.h | 125 +++++++++++++++++++++++++++++++++++= ++++ 5 files changed, 269 insertions(+), 1 deletion(-) diff --git a/drivers/ptp/Makefile b/drivers/ptp/Makefile index 01b5cd91eb61..ab4990f56e5e 100644 --- a/drivers/ptp/Makefile +++ b/drivers/ptp/Makefile @@ -3,6 +3,11 @@ # Makefile for PTP 1588 clock support. # =20 +ifdef CONFIG_PTP_1588_CLOCK +# The ptp_clock consumer is built-in whenever PTP_1588_CLOCK is built-in +# or module +obj-y :=3D ptp_clock_consumer.o +endif ptp-y :=3D ptp_clock.o ptp_chardev.o ptp_sysfs.o ptp_vclock.o ptp_kvm-$(CONFIG_X86) :=3D ptp_kvm_x86.o ptp_kvm_common.o ptp_kvm-$(CONFIG_HAVE_ARM_SMCCC) :=3D ptp_kvm_arm.o ptp_kvm_common.o diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c index c56cd0f63909..593b5c906314 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -34,7 +34,6 @@ const struct class ptp_class =3D { =20 static dev_t ptp_devt; =20 -static DEFINE_XARRAY_ALLOC(ptp_clocks_map); =20 /* time stamp event queue operations */ =20 @@ -512,6 +511,38 @@ void ptp_cancel_worker_sync(struct ptp_clock *ptp) } EXPORT_SYMBOL(ptp_cancel_worker_sync); =20 +struct ptp_clock *netdev_ptp_clock_register(struct ptp_clock_info *info, + struct net_device *dev) +{ + struct ptp_clock *ptp; + + ptp =3D ptp_clock_register(info, &dev->dev); + if (IS_ERR(ptp)) + return ptp; + + ptp->phc_source =3D HWTSTAMP_SOURCE_NETDEV; + ptp->netdev =3D dev; + + return ptp; +} +EXPORT_SYMBOL(netdev_ptp_clock_register); + +struct ptp_clock *phydev_ptp_clock_register(struct ptp_clock_info *info, + struct phy_device *phydev) +{ + struct ptp_clock *ptp; + + ptp =3D ptp_clock_register(info, &phydev->mdio.dev); + if (IS_ERR(ptp)) + return ptp; + + ptp->phc_source =3D HWTSTAMP_SOURCE_PHYLIB; + ptp->phydev =3D phydev; + + return ptp; +} +EXPORT_SYMBOL(phydev_ptp_clock_register); + /* module operations */ =20 static void __exit ptp_exit(void) diff --git a/drivers/ptp/ptp_clock_consumer.c b/drivers/ptp/ptp_clock_consu= mer.c new file mode 100644 index 000000000000..58b0c8948fc8 --- /dev/null +++ b/drivers/ptp/ptp_clock_consumer.c @@ -0,0 +1,100 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * PTP 1588 clock support + * + * Copyright (C) 2010 OMICRON electronics GmbH + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ptp_private.h" + +DEFINE_XARRAY_ALLOC(ptp_clocks_map); +EXPORT_SYMBOL(ptp_clocks_map); + +bool ptp_clock_from_phylib(struct ptp_clock *ptp) +{ + return ptp->phc_source =3D=3D HWTSTAMP_SOURCE_PHYLIB; +} + +bool ptp_clock_from_netdev(struct ptp_clock *ptp) +{ + return ptp->phc_source =3D=3D HWTSTAMP_SOURCE_NETDEV; +} + +struct net_device *ptp_clock_netdev(struct ptp_clock *ptp) +{ + if (ptp->phc_source !=3D HWTSTAMP_SOURCE_NETDEV) + return NULL; + + return ptp->netdev; +} + +struct phy_device *ptp_clock_phydev(struct ptp_clock *ptp) +{ + if (ptp->phc_source !=3D HWTSTAMP_SOURCE_PHYLIB) + return NULL; + + return ptp->phydev; +} +EXPORT_SYMBOL(ptp_clock_phydev); + +int ptp_clock_get(struct device *dev, struct ptp_clock *ptp) +{ + struct device_link *link; + + if (!ptp) + return 0; + + if (!try_module_get(ptp->info->owner)) + return -EPROBE_DEFER; + + get_device(&ptp->dev); + + link =3D device_link_add(dev, &ptp->dev, DL_FLAG_STATELESS); + if (!link) + dev_warn(dev, "failed to create device link to %s\n", + dev_name(&ptp->dev)); + + return 0; +} + +struct ptp_clock *ptp_clock_get_by_index(struct device *dev, int index) +{ + struct ptp_clock *ptp; + int ret; + + if (index < 0) + return NULL; + + ptp =3D xa_load(&ptp_clocks_map, (unsigned long)index); + if (IS_ERR_OR_NULL(ptp)) + return ptp; + + ret =3D ptp_clock_get(dev, ptp); + if (ret) + return ERR_PTR(ret); + + return ptp; +} + +void ptp_clock_put(struct device *dev, struct ptp_clock *ptp) +{ + if (!ptp) + return; + + device_link_remove(dev, &ptp->dev); + put_device(&ptp->dev); + module_put(ptp->info->owner); +} diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h index 18934e28469e..6a306e6e34c2 100644 --- a/drivers/ptp/ptp_private.h +++ b/drivers/ptp/ptp_private.h @@ -24,6 +24,8 @@ #define PTP_DEFAULT_MAX_VCLOCKS 20 #define PTP_MAX_CHANNELS 2048 =20 +extern struct xarray ptp_clocks_map; + struct timestamp_event_queue { struct ptp_extts_event buf[PTP_MAX_TIMESTAMPS]; int head; @@ -41,6 +43,11 @@ struct ptp_clock { struct ptp_clock_info *info; dev_t devid; int index; /* index into clocks.map */ + enum hwtstamp_source phc_source; + union { /* Pointer of the phc_source device */ + struct net_device *netdev; + struct phy_device *phydev; + }; struct pps_device *pps_source; long dialed_frequency; /* remembers the frequency adjustment */ struct list_head tsevqs; /* timestamp fifo list */ diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_ker= nel.h index c892d22ce0a7..87d8f42b2cc1 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -9,7 +9,9 @@ #define _PTP_CLOCK_KERNEL_H_ =20 #include +#include #include +#include #include #include #include @@ -342,6 +344,106 @@ extern void ptp_clock_event(struct ptp_clock *ptp, =20 extern int ptp_clock_index(struct ptp_clock *ptp); =20 +/** + * netdev_ptp_clock_register() - Register a PTP hardware clock driver for + * a net device + * + * @info: Structure describing the new clock. + * @dev: Pointer of the net device. + * + * Return: Pointer of the PTP clock, error pointer otherwise. + */ + +struct ptp_clock * +netdev_ptp_clock_register(struct ptp_clock_info *info, + struct net_device *dev); + +/** + * phydev_ptp_clock_register() - Register a PTP hardware clock driver for + * a phy device + * + * @info: Structure describing the new clock. + * @phydev: Pointer of the phy device. + * + * Return: Pointer of the PTP clock, error pointer otherwise. + */ + +struct ptp_clock * +phydev_ptp_clock_register(struct ptp_clock_info *info, + struct phy_device *phydev); + +/** + * ptp_clock_from_phylib() - Does the PTP clock comes from phylib + * + * @ptp: The clock obtained from net/phy_ptp_clock_register(). + * + * Return: True if the PTP clock comes from phylib, false otherwise. + */ + +bool ptp_clock_from_phylib(struct ptp_clock *ptp); + +/** + * ptp_clock_from_netdev() - Does the PTP clock comes from netdev + * + * @ptp: The clock obtained from net/phy_ptp_clock_register(). + * + * Return: True if the PTP clock comes from netdev, false otherwise. + */ + +bool ptp_clock_from_netdev(struct ptp_clock *ptp); + +/** + * ptp_clock_netdev() - Obtain the net_device reference of PTP clock + * + * @ptp: The clock obtained from netdev_ptp_clock_register(). + * + * Return: Pointer of the net device, NULL otherwise. + */ + +struct net_device *ptp_clock_netdev(struct ptp_clock *ptp); + +/** + * ptp_clock_phydev() - Obtain the phy_device reference of a PTP clock + * + * @ptp: The clock obtained from phydev_ptp_clock_register(). + * + * Return: Pointer of the phy device, NULL otherwise. + */ + +struct phy_device *ptp_clock_phydev(struct ptp_clock *ptp); + +/** + * ptp_clock_get() - Increment refcount of the PTP clock + * + * @dev: The device which get the PTP clock. + * @ptp: Pointer of a PTP clock. + * + * Return: 0 in case of success, error otherwise. + */ + +int ptp_clock_get(struct device *dev, struct ptp_clock *ptp); + +/** + * ptp_clock_get_by_index() - Obtain the PTP clock reference from a given + * PHC index + * + * @dev: The device which get the PTP clock. + * @index: The device index of a PTP clock. + * + * Return: Pointer of the PTP clock, error pointer otherwise. + */ + +struct ptp_clock *ptp_clock_get_by_index(struct device *dev, int index); + +/** + * ptp_clock_put() - decrement refcount of the PTP clock + * + * @dev: The device which get the PTP clock. + * @ptp: Pointer of a PTP clock. + */ + +void ptp_clock_put(struct device *dev, struct ptp_clock *ptp); + /** * ptp_find_pin() - obtain the pin index of a given auxiliary function * @@ -407,6 +509,29 @@ static inline void ptp_clock_event(struct ptp_clock *p= tp, { } static inline int ptp_clock_index(struct ptp_clock *ptp) { return -1; } +static inline struct ptp_clock * +netdev_ptp_clock_register(struct ptp_clock_info *info, + struct net_device *dev) +{ return NULL; } +static inline struct ptp_clock * +phydev_ptp_clock_register(struct ptp_clock_info *info, + struct phy_device *phydev) +{ return NULL; } +static inline bool ptp_clock_from_phylib(struct ptp_clock *ptp) +{ return false; } +static inline bool ptp_clock_from_netdev(struct ptp_clock *ptp) +{ return false; } +static inline struct net_device *ptp_clock_netdev(struct ptp_clock *ptp) +{ return NULL; } +static inline struct phy_device *ptp_clock_phydev(struct ptp_clock *ptp) +{ return NULL; } +static inline int ptp_clock_get(struct device *dev, struct ptp_clock *ptp) +{ return -ENODEV; } +static inline void ptp_clock_put(struct device *dev, struct ptp_clock *ptp) +{ } +static inline struct ptp_clock *ptp_clock_get_by_index(struct device *dev, + int index) +{ return NULL; } static inline int ptp_find_pin(struct ptp_clock *ptp, enum ptp_pin_function func, unsigned int chan) { return -1; 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bh=5fx6tT2jwHvyypErfJqOgQ8K7mZZZgY00cOLywJhQwg=; b=TYA5avzFsf4MiuG4FEBy2l0gWQYlD3NZdbaOGK3gANRn6tciE6Dm8UZrqR0aV5hDy2OLKE /8+b6W2L4wNmXCqbrVZZFW2PaWWUm9EE4L0NfA7Q6VRIvp9BfaBfTon6p114UtdoEm8Vkx x7pWJX8rZKVlXluxUjSXvhwmdBTbvzmEcXYbGMkYTb2g+BCbWUSIO20T6rM2syEfrM/Co2 ID2J/3909hbW48m1p3UI6TyD2kBZMEV4l+qy5CgHLXNkxenClk/tvg7gd/PDVs6QJfWV/2 DBSR36xaXO6WDDcrPP+X0flCV8gSdIvCMVm2sbVvJp2eVBLHOrXEgmg8c/ZLyQ== From: Kory Maincent Date: Wed, 23 Oct 2024 17:49:14 +0200 Subject: [PATCH net-next v18 04/10] net: Add the possibility to support a selected hwtstamp in netdevice Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-4-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com Introduce the description of a hwtstamp provider, mainly defined with a ptp_clock pointer and a qualifier value. Add a hwtstamp provider description within the netdev structure to allow saving the hwtstamp we want to use. This prepares for future support of an ethtool netlink command to select the desired hwtstamp provider. By default, the old API that does not support hwtstamp selectability is used, meaning the hwtstamp ptp_clock pointer is unset. Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Change in v8: - New patch Change in v10: - Set hwtstamp in netdevice as a pointer for future use of rcu lock. - Fix a nit in teh order of setting phydev pointer. - Add a missing kdoc description. Change in v13: - Remove an include from netdevices.h. Change in v16: - Import the part of the patch 12 which belong to the hwtstamp provider selectability of net core. Change in v18: - Fix a doc NIT. --- drivers/net/phy/phy_device.c | 11 +++++++++ drivers/ptp/ptp_clock_consumer.c | 10 ++++++++ include/linux/net_tstamp.h | 18 +++++++++++++++ include/linux/netdevice.h | 5 ++++ include/linux/ptp_clock_kernel.h | 10 ++++++++ include/uapi/linux/net_tstamp.h | 11 +++++++++ net/core/dev_ioctl.c | 43 ++++++++++++++++++++++++++++++++-- net/core/timestamping.c | 50 ++++++++++++++++++++++++++++++++++++= ---- 8 files changed, 151 insertions(+), 7 deletions(-) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 563497a3274c..c8440168cb09 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -1998,6 +1999,16 @@ void phy_detach(struct phy_device *phydev) =20 phy_suspend(phydev); if (dev) { + struct hwtstamp_provider *hwtstamp; + + hwtstamp =3D rtnl_dereference(dev->hwtstamp); + /* Disable timestamp if selected */ + if (hwtstamp && ptp_clock_phydev(hwtstamp->ptp) =3D=3D phydev) { + rcu_assign_pointer(dev->hwtstamp, NULL); + call_rcu(&hwtstamp->rcu_head, + remove_hwtstamp_provider); + } + phydev->attached_dev->phydev =3D NULL; phydev->attached_dev =3D NULL; phy_link_topo_del_phy(dev, phydev); diff --git a/drivers/ptp/ptp_clock_consumer.c b/drivers/ptp/ptp_clock_consu= mer.c index 58b0c8948fc8..f5fab1c14b47 100644 --- a/drivers/ptp/ptp_clock_consumer.c +++ b/drivers/ptp/ptp_clock_consumer.c @@ -98,3 +98,13 @@ void ptp_clock_put(struct device *dev, struct ptp_clock = *ptp) put_device(&ptp->dev); module_put(ptp->info->owner); } + +void remove_hwtstamp_provider(struct rcu_head *rcu_head) +{ + struct hwtstamp_provider *hwtstamp; + + hwtstamp =3D container_of(rcu_head, struct hwtstamp_provider, rcu_head); + ptp_clock_put(hwtstamp->dev, hwtstamp->ptp); + kfree(hwtstamp); +} +EXPORT_SYMBOL(remove_hwtstamp_provider); diff --git a/include/linux/net_tstamp.h b/include/linux/net_tstamp.h index 662074b08c94..077037f9ad0f 100644 --- a/include/linux/net_tstamp.h +++ b/include/linux/net_tstamp.h @@ -19,6 +19,22 @@ enum hwtstamp_source { HWTSTAMP_SOURCE_PHYLIB, }; =20 +/** + * struct hwtstamp_provider - Description of a hwtstamp provider object + * + * @rcu_head: RCU callback used to free the struct. + * @dev: device attached to the hwtstamp provider used to put the ptp cloc= k. + * @ptp: PTP clock pointer of the hwtstamp provider. + * @qualifier: hwtstamp provider qualifier. + */ + +struct hwtstamp_provider { + struct rcu_head rcu_head; + struct device *dev; + struct ptp_clock *ptp; + enum hwtstamp_provider_qualifier qualifier; +}; + /** * struct kernel_hwtstamp_config - Kernel copy of struct hwtstamp_config * @@ -31,6 +47,7 @@ enum hwtstamp_source { * copied the ioctl request back to user space * @source: indication whether timestamps should come from the netdev or f= rom * an attached phylib PHY + * @qualifier: qualifier of the hwtstamp provider * * Prefer using this structure for in-kernel processing of hardware * timestamping configuration, over the inextensible struct hwtstamp_config @@ -43,6 +60,7 @@ struct kernel_hwtstamp_config { struct ifreq *ifr; bool copied_to_user; enum hwtstamp_source source; + enum hwtstamp_provider_qualifier qualifier; }; =20 static inline void hwtstamp_config_to_kernel(struct kernel_hwtstamp_config= *kernel_cfg, diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 8feaca12655e..3e7d0cf4b436 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -81,6 +81,7 @@ struct xdp_metadata_ops; struct xdp_md; struct ethtool_netdev_state; struct phy_link_topology; +struct hwtstamp_provider; =20 typedef u32 xdp_features_t; =20 @@ -2033,6 +2034,7 @@ enum netdev_reg_state { * @gro_flush_timeout: timeout for GRO layer in NAPI * @napi_defer_hard_irqs: If not zero, provides a counter that would * allow to avoid NIC hard IRQ, on busy queues. + * @hwtstamp: Tracks which PTP performs hardware packet time stamping. * * FIXME: cleanup struct net_device such that network protocol info * moves out. @@ -2443,6 +2445,9 @@ struct net_device { */ struct net_shaper_hierarchy *net_shaper_hierarchy; #endif + + struct hwtstamp_provider __rcu *hwtstamp; + u8 priv[] ____cacheline_aligned __counted_by(priv_len); } ____cacheline_aligned; diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_ker= nel.h index 87d8f42b2cc1..cf6a72d2868a 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -444,6 +444,14 @@ struct ptp_clock *ptp_clock_get_by_index(struct device= *dev, int index); =20 void ptp_clock_put(struct device *dev, struct ptp_clock *ptp); =20 +/** + * remove_hwtstamp_provider() - Put and free the hwtstamp provider + * + * @rcu_head: RCU callback head. + */ + +void remove_hwtstamp_provider(struct rcu_head *rcu_head); + /** * ptp_find_pin() - obtain the pin index of a given auxiliary function * @@ -532,6 +540,8 @@ static inline void ptp_clock_put(struct device *dev, st= ruct ptp_clock *ptp) static inline struct ptp_clock *ptp_clock_get_by_index(struct device *dev, int index) { return NULL; } +static inline void remove_hwtstamp_provider(struct rcu_head *rcu_head) +{ return; } static inline int ptp_find_pin(struct ptp_clock *ptp, enum ptp_pin_function func, unsigned int chan) { return -1; } diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstam= p.h index 858339d1c1c4..55b0ab51096c 100644 --- a/include/uapi/linux/net_tstamp.h +++ b/include/uapi/linux/net_tstamp.h @@ -13,6 +13,17 @@ #include #include /* for SO_TIMESTAMPING */ =20 +/* + * Possible type of hwtstamp provider. Mainly "precise" the default one + * is for IEEE 1588 quality and "approx" is for NICs DMA point. + */ +enum hwtstamp_provider_qualifier { + HWTSTAMP_PROVIDER_QUALIFIER_PRECISE, + HWTSTAMP_PROVIDER_QUALIFIER_APPROX, + + HWTSTAMP_PROVIDER_QUALIFIER_CNT, +}; + /* SO_TIMESTAMPING flags */ enum { SOF_TIMESTAMPING_TX_HARDWARE =3D (1<<0), diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c index 2128dc7f5bfb..2e472e7b8806 100644 --- a/net/core/dev_ioctl.c +++ b/net/core/dev_ioctl.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -269,6 +270,22 @@ static int dev_eth_ioctl(struct net_device *dev, int dev_get_hwtstamp_phylib(struct net_device *dev, struct kernel_hwtstamp_config *cfg) { + struct hwtstamp_provider *hwtstamp; + + hwtstamp =3D rtnl_dereference(dev->hwtstamp); + if (hwtstamp) { + struct ptp_clock *ptp =3D hwtstamp->ptp; + + cfg->qualifier =3D hwtstamp->qualifier; + if (ptp_clock_from_phylib(ptp)) + return phy_hwtstamp_get(ptp_clock_phydev(ptp), cfg); + + if (ptp_clock_from_netdev(ptp)) + return dev->netdev_ops->ndo_hwtstamp_get(dev, cfg); + + return -EOPNOTSUPP; + } + if (phy_is_default_hwtstamp(dev->phydev)) return phy_hwtstamp_get(dev->phydev, cfg); =20 @@ -324,11 +341,33 @@ int dev_set_hwtstamp_phylib(struct net_device *dev, struct netlink_ext_ack *extack) { const struct net_device_ops *ops =3D dev->netdev_ops; - bool phy_ts =3D phy_is_default_hwtstamp(dev->phydev); struct kernel_hwtstamp_config old_cfg =3D {}; + struct hwtstamp_provider *hwtstamp; + struct phy_device *phydev; bool changed =3D false; + bool phy_ts; int err; =20 + hwtstamp =3D rtnl_dereference(dev->hwtstamp); + if (hwtstamp) { + struct ptp_clock *ptp =3D hwtstamp->ptp; + + if (ptp_clock_from_phylib(ptp)) { + phy_ts =3D true; + phydev =3D ptp_clock_phydev(ptp); + } else if (ptp_clock_from_netdev(ptp)) { + phy_ts =3D false; + } else { + return -EOPNOTSUPP; + } + + cfg->qualifier =3D hwtstamp->qualifier; + } else { + phy_ts =3D phy_is_default_hwtstamp(dev->phydev); + if (phy_ts) + phydev =3D dev->phydev; + } + cfg->source =3D phy_ts ? HWTSTAMP_SOURCE_PHYLIB : HWTSTAMP_SOURCE_NETDEV; =20 if (phy_ts && dev->see_all_hwtstamp_requests) { @@ -350,7 +389,7 @@ int dev_set_hwtstamp_phylib(struct net_device *dev, changed =3D kernel_hwtstamp_config_changed(&old_cfg, cfg); =20 if (phy_ts) { - err =3D phy_hwtstamp_set(dev->phydev, cfg, extack); + err =3D phy_hwtstamp_set(phydev, cfg, extack); if (err) { if (changed) ops->ndo_hwtstamp_set(dev, &old_cfg, NULL); diff --git a/net/core/timestamping.c b/net/core/timestamping.c index 3717fb152ecc..f8522fefd468 100644 --- a/net/core/timestamping.c +++ b/net/core/timestamping.c @@ -9,6 +9,7 @@ #include #include #include +#include =20 static unsigned int classify(const struct sk_buff *skb) { @@ -21,19 +22,38 @@ static unsigned int classify(const struct sk_buff *skb) =20 void skb_clone_tx_timestamp(struct sk_buff *skb) { + struct hwtstamp_provider *hwtstamp; struct mii_timestamper *mii_ts; + struct phy_device *phydev; struct sk_buff *clone; unsigned int type; =20 - if (!skb->sk || !skb->dev || - !phy_is_default_hwtstamp(skb->dev->phydev)) + if (!skb->sk || !skb->dev) return; =20 + rcu_read_lock(); + hwtstamp =3D rcu_dereference(skb->dev->hwtstamp); + if (hwtstamp) { + if (!ptp_clock_from_phylib(hwtstamp->ptp)) { + rcu_read_unlock(); + return; + } + + phydev =3D ptp_clock_phydev(hwtstamp->ptp); + } else { + phydev =3D skb->dev->phydev; + if (!phy_is_default_hwtstamp(phydev)) { + rcu_read_unlock(); + return; + } + } + rcu_read_unlock(); + type =3D classify(skb); if (type =3D=3D PTP_CLASS_NONE) return; =20 - mii_ts =3D skb->dev->phydev->mii_ts; + mii_ts =3D phydev->mii_ts; if (likely(mii_ts->txtstamp)) { clone =3D skb_clone_sk(skb); if (!clone) @@ -45,12 +65,32 @@ EXPORT_SYMBOL_GPL(skb_clone_tx_timestamp); =20 bool skb_defer_rx_timestamp(struct sk_buff *skb) { + struct hwtstamp_provider *hwtstamp; struct mii_timestamper *mii_ts; + struct phy_device *phydev; unsigned int type; =20 - if (!skb->dev || !phy_is_default_hwtstamp(skb->dev->phydev)) + if (!skb->dev) return false; =20 + rcu_read_lock(); + hwtstamp =3D rcu_dereference(skb->dev->hwtstamp); + if (hwtstamp) { + if (!ptp_clock_from_phylib(hwtstamp->ptp)) { + rcu_read_unlock(); + return false; + } + + phydev =3D ptp_clock_phydev(hwtstamp->ptp); + } else { + phydev =3D skb->dev->phydev; + if (!phy_is_default_hwtstamp(phydev)) { + rcu_read_unlock(); + return false; + } + } + rcu_read_unlock(); + if (skb_headroom(skb) < ETH_HLEN) return false; =20 @@ -63,7 +103,7 @@ bool skb_defer_rx_timestamp(struct sk_buff *skb) if (type =3D=3D PTP_CLASS_NONE) return false; =20 - mii_ts =3D skb->dev->phydev->mii_ts; + mii_ts =3D phydev->mii_ts; if (likely(mii_ts->rxtstamp)) return mii_ts->rxtstamp(mii_ts, skb, type); =20 --=20 2.34.1 From nobody Mon Nov 25 22:28:16 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 284D21AB6D8; Wed, 23 Oct 2024 15:49:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; 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spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="oG+j3fZC" Received: by mail.gandi.net (Postfix) with ESMTPSA id A702D60005; Wed, 23 Oct 2024 15:49:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1729698584; 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=Fq4eTw5gjPKZ2qkeh1v5b1UUeAkITT/C7oYWuEbLAbk=; b=oG+j3fZCFL2hqzmzBHxvaRa+Yge18TpUYaMM251t07oJ0SQpJhAazSl+hD6fJpeelwAMpy BjZEmke2nAUI0PykQttAxCRiF7Vp392v2lCKL8EMF4GhQkfdNE1bl5g0Wfysm47V/0tof/ PcFjZ6UNZoNLxZbvKvB7vOnLKzYbB++yaZCBdfYB4L84g8F9DPjW7a6sNsMiUVJ8QU81mW QYfG2fEEdhDo1uzyOsU7+0cbo3AyID8hMcJRcN/sBQDCz8/2t3KamPYSDaOpa+CfUebDZR es9cb7okZIxDPsbIs4lIt2QdIDLOcj1YmRhK1yFi4usxNAquAjrphnch4U5MPg== From: Kory Maincent Date: Wed, 23 Oct 2024 17:49:15 +0200 Subject: [PATCH net-next v18 05/10] net: netdevsim: ptp_mock: Convert to netdev_ptp_clock_register Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-5-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com The hardware registration clock for net device is now using netdev_ptp_clock_register to save the net_device pointer within the PTP clock xarray. netdevsim is registering its ptp through the mock driver. It is the only driver using the mock driver to register a ptp clock. Convert the mock driver to the new API. Reviewed-by: Rahul Rameshbabu Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Changes in v8: - New patch --- drivers/net/netdevsim/netdev.c | 19 +++++++++++-------- drivers/ptp/ptp_mock.c | 4 ++-- include/linux/ptp_mock.h | 4 ++-- 3 files changed, 15 insertions(+), 12 deletions(-) diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c index cad85bb0cf54..dd9f4acafcd5 100644 --- a/drivers/net/netdevsim/netdev.c +++ b/drivers/net/netdevsim/netdev.c @@ -702,17 +702,12 @@ static int nsim_init_netdevsim(struct netdevsim *ns) struct mock_phc *phc; int err; =20 - phc =3D mock_phc_create(&ns->nsim_bus_dev->dev); - if (IS_ERR(phc)) - return PTR_ERR(phc); - - ns->phc =3D phc; ns->netdev->netdev_ops =3D &nsim_netdev_ops; ns->netdev->stat_ops =3D &nsim_stat_ops; =20 err =3D nsim_udp_tunnels_info_create(ns->nsim_dev, ns->netdev); if (err) - goto err_phc_destroy; + return err; =20 rtnl_lock(); err =3D nsim_queue_init(ns); @@ -730,8 +725,18 @@ static int nsim_init_netdevsim(struct netdevsim *ns) if (err) goto err_ipsec_teardown; rtnl_unlock(); + + phc =3D mock_phc_create(ns->netdev); + if (IS_ERR(phc)) { + err =3D PTR_ERR(phc); + goto err_register_netdevice; + } + + ns->phc =3D phc; return 0; =20 +err_register_netdevice: + unregister_netdevice(ns->netdev); err_ipsec_teardown: nsim_ipsec_teardown(ns); nsim_macsec_teardown(ns); @@ -741,8 +746,6 @@ static int nsim_init_netdevsim(struct netdevsim *ns) err_utn_destroy: rtnl_unlock(); nsim_udp_tunnels_info_destroy(ns->netdev); -err_phc_destroy: - mock_phc_destroy(ns->phc); return err; } =20 diff --git a/drivers/ptp/ptp_mock.c b/drivers/ptp/ptp_mock.c index e7b459c846a2..1dcbe7426746 100644 --- a/drivers/ptp/ptp_mock.c +++ b/drivers/ptp/ptp_mock.c @@ -115,7 +115,7 @@ int mock_phc_index(struct mock_phc *phc) } EXPORT_SYMBOL_GPL(mock_phc_index); =20 -struct mock_phc *mock_phc_create(struct device *dev) +struct mock_phc *mock_phc_create(struct net_device *dev) { struct mock_phc *phc; int err; @@ -147,7 +147,7 @@ struct mock_phc *mock_phc_create(struct device *dev) spin_lock_init(&phc->lock); timecounter_init(&phc->tc, &phc->cc, 0); =20 - phc->clock =3D ptp_clock_register(&phc->info, dev); + phc->clock =3D netdev_ptp_clock_register(&phc->info, dev); if (IS_ERR(phc->clock)) { err =3D PTR_ERR(phc->clock); goto out_free_phc; diff --git a/include/linux/ptp_mock.h b/include/linux/ptp_mock.h index 72eb401034d9..e226011071f8 100644 --- a/include/linux/ptp_mock.h +++ b/include/linux/ptp_mock.h @@ -13,13 +13,13 @@ struct mock_phc; =20 #if IS_ENABLED(CONFIG_PTP_1588_CLOCK_MOCK) =20 -struct mock_phc *mock_phc_create(struct device *dev); +struct mock_phc *mock_phc_create(struct net_device *dev); void mock_phc_destroy(struct mock_phc *phc); int mock_phc_index(struct mock_phc *phc); =20 #else =20 -static inline struct mock_phc *mock_phc_create(struct device *dev) +static inline struct mock_phc *mock_phc_create(struct net_device *dev) { return NULL; } --=20 2.34.1 From nobody Mon Nov 25 22:28:16 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 1A5B01CACF2; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-6-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com The hardware registration clock for net device is now using netdev_ptp_clock_register to save the net_device pointer within the ptp clock xarray. Convert the macb driver to the new API. Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Change in v8: - New patch --- drivers/net/ethernet/cadence/macb_ptp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/cadence/macb_ptp.c b/drivers/net/ethernet= /cadence/macb_ptp.c index a63bf29c4fa8..50fa62a0ddc5 100644 --- a/drivers/net/ethernet/cadence/macb_ptp.c +++ b/drivers/net/ethernet/cadence/macb_ptp.c @@ -332,7 +332,7 @@ void gem_ptp_init(struct net_device *dev) bp->tsu_rate =3D bp->ptp_info->get_tsu_rate(bp); bp->ptp_clock_info.max_adj =3D bp->ptp_info->get_ptp_max_adj(); gem_ptp_init_timer(bp); - bp->ptp_clock =3D ptp_clock_register(&bp->ptp_clock_info, &dev->dev); + bp->ptp_clock =3D netdev_ptp_clock_register(&bp->ptp_clock_info, dev); if (IS_ERR(bp->ptp_clock)) { pr_err("ptp clock register failed: %ld\n", PTR_ERR(bp->ptp_clock)); --=20 2.34.1 From nobody Mon Nov 25 22:28:16 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 B91F81C9B71; Wed, 23 Oct 2024 15:49:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698592; cv=none; b=eEC9PoJj27ThPFI7JvO+JbvPORuhm17YfQWMiafbtHKm0OuhJaNPeppVYO9k2HA4BDFduhxuqwvXmGU50cOYbCJZP6ZCdBn9WazGGspbJr71fbd+XBewxaNwbdjPiMGFX8VfPhvk2BrcW/jot1PPJjx/E3F2zI3OFQ/iKyuhN1c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698592; c=relaxed/simple; bh=VvGomd4CsgGBhIU7pyBpX/Z+sXtXTWPEK3ZJsnpKH28=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=VH4JLudkrY/8XRswKidek4tmJgf+f5cHFsU9ye5O58ubaVAiKAlEUN4eUZh+YF99ImLBDmL3Msz183xbLxxvkSPSAdTWHz2ZnoWSj4lLG2/CkyZXUBSgDSl0ZF/u0OvRd8b+6s0d6P6hXCO+V+ZUedXMLcY6L4YUXi9rO3804Po= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=PSS7mykf; arc=none smtp.client-ip=217.70.183.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="PSS7mykf" Received: by mail.gandi.net (Postfix) with ESMTPSA id 6FFBE60004; Wed, 23 Oct 2024 15:49:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1729698588; 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=ZaSNYgBmbkGG1UyZcwoYGA9rHYudjY/FeaExeuN9m4g=; b=PSS7mykfP9dtMXsDQN6rkxkNC6/baiaEB3gJHH+MC4spEixEVmEmRg1WyPCSHAKkJod32d JtpOLyDSGPQXuqbwKikDasyk3ptDBqjx3qe069ugjul7DmRW76/YGI7vOG3if+nyFb0Z+K AFncbKDyqeSfx9DLn6PJDfeMPpEc64k/Zq/eu4peGDOx6wClxhWa4lKXP/wkjxDc9658MY 2lTqNPQKuu0X35B+Ar/WfaKYTJAKf+jD50gP6uc5lrVrpqPjXcQz0z8yzReezuSvMqQUfc QIRfMGp64TCTbhVEoFV7/0pfNajFm36U8z4k93mv8RSFGi5Capn07KV8rIb0jA== From: Kory Maincent Date: Wed, 23 Oct 2024 17:49:17 +0200 Subject: [PATCH net-next v18 07/10] net: ptp: Move ptp_clock_index() to builtin symbol Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-7-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com Move ptp_clock_index() to builtin symbols to prepare for supporting get and set hardware timestamps from ethtool, which is builtin. Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Change in v13: - New patch --- drivers/ptp/ptp_clock.c | 6 ------ drivers/ptp/ptp_clock_consumer.c | 6 ++++++ 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c index 593b5c906314..fc4b266abe1d 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -460,12 +460,6 @@ void ptp_clock_event(struct ptp_clock *ptp, struct ptp= _clock_event *event) } EXPORT_SYMBOL(ptp_clock_event); =20 -int ptp_clock_index(struct ptp_clock *ptp) -{ - return ptp->index; -} -EXPORT_SYMBOL(ptp_clock_index); - int ptp_find_pin(struct ptp_clock *ptp, enum ptp_pin_function func, unsigned int chan) { diff --git a/drivers/ptp/ptp_clock_consumer.c b/drivers/ptp/ptp_clock_consu= mer.c index f5fab1c14b47..f521b07da231 100644 --- a/drivers/ptp/ptp_clock_consumer.c +++ b/drivers/ptp/ptp_clock_consumer.c @@ -108,3 +108,9 @@ void remove_hwtstamp_provider(struct rcu_head *rcu_head) kfree(hwtstamp); } EXPORT_SYMBOL(remove_hwtstamp_provider); + +int ptp_clock_index(struct ptp_clock *ptp) +{ + return ptp->index; +} +EXPORT_SYMBOL(ptp_clock_index); --=20 2.34.1 From nobody Mon Nov 25 22:28:16 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 370301CEE8D; Wed, 23 Oct 2024 15:49:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698594; cv=none; b=QacjJAFjr2p++G7xTaoJbIupsaZJKVAOu35cdtWtZ2T8z3NET8qs2tOYc6iVVoo+wH7wMo8/L4zo8KgZHl6a+qp4SKDy7iLy+Muo3IiSeUWW2OcCasVqngHaINwPf5HGuntYfMOxLQqKASnuoZxVQmC5IsPAPOFe1l2QhZ7m9g8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729698594; c=relaxed/simple; bh=Xh/ZpBD664iwsmJf8dap4EVBpLuYjhNW4r2du2LP0+M=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=lTN358fe8Tdzq3v8xWXreaJQQnBZUztLuSsxef/9xJrN8STN5W3cuAID1S47XV9swJeoQFOvBTSTl3BSR7game/f6qZAM5iOB5SFRp5aYm6hmIO+CiiP0+1SXEEITJa2FJxskXPQDylvYX+iLuEbSEwrRxq5A3uOhjRWz4AfMmo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=WFrHxu9S; arc=none smtp.client-ip=217.70.183.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="WFrHxu9S" Received: by mail.gandi.net (Postfix) with ESMTPSA id 1845E60006; Wed, 23 Oct 2024 15:49:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1729698589; 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=yyouTIPf8/2MGnDZ9PrPxFlSWKi8+VwYUTWSb+/pnYw=; b=WFrHxu9SfOt2m3syZDfo2Rb9qCIcmUO/TZjGTwwbLtF25/anI6+Zo3yXWqOJ8YK+kxQHGK vESvnMB7FevP62HmKe4N/sCX+FFOzsi9emoY3MBIpeXMlCxi7XSpk2XokaAJ3p/sEFxor2 kMCShWyTjuG/2ASzsDPLsmJvDw9T7soaRfcmdzWfuGpsnCkHcDM6T9Ustg8Au7A2gNDJyr CcfQMz83HCDcHvn6XwzY2hy3DVHCSluU5ZAfwbEwtkOLYzVqrB/qjvn7S5TDtdH3/U/myi nhlNnALG5A+cSji2mEi8/n5dwmgq1CQiiD4s0z9c72GhWtkc81P1hYeiz6tzdg== From: Kory Maincent Date: Wed, 23 Oct 2024 17:49:18 +0200 Subject: [PATCH net-next v18 08/10] net: ethtool: tsinfo: Add support for reading tsinfo for a specific hwtstamp provider Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-8-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com Either the MAC or the PHY can provide hwtstamp, so we should be able to read the tsinfo for any hwtstamp provider. Enhance 'get' command to retrieve tsinfo of hwtstamp providers within a network topology. Add support for a specific dump command to retrieve all hwtstamp providers within the network topology, with added functionality for filtered dump to target a single interface. Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Change in v8: - New patch Change in v9: - Fix nit in done callback. Change in v10: - Add documentation. - Add extack error messages. - Add NLA_POLICY_* checks. - Fix few nits. - Add ETHTOOL_A_TSINFO_GHWTSTAMP netlink attributes instead of a bit in ETHTOOL_A_TSINFO_TIMESTAMPING bitset. - Add tsinfo_parse_hwtstamp_provider function for more readability. - Move netdev_support_hwtstamp_qualifier function in core ptp instead of core net. - Add refcount put to release the ptp object. - Use rcu lock to avoid memory leak. Change in v12: - Add missing return description in the kdoc. - Fix possible leak due to uninitialised variable. - Add a missing static. Change in v13: - Remove useless EXPORT_SYMBOL(). - Fix issues reported by sparse and smatch. - Fix issues when building PTP as a module. - Rename HWTSTAMP_PROVIDER_NEST to HWTSTAMP_PROVIDER. Change in v16: - Used call_rcu() instead of synchronize_rcu() to free the hwtstamp_provider struct. - Fix documentation typo. - Fix few nit. - Fix possible issue regardings stats. - Remove hwtstamp config get and set from tsinfo. --- Documentation/networking/ethtool-netlink.rst | 7 +- drivers/ptp/ptp_clock_consumer.c | 66 ++++++++ include/linux/ethtool.h | 4 + include/linux/ptp_clock_kernel.h | 53 ++++++ include/uapi/linux/ethtool_netlink.h | 11 +- net/ethtool/common.c | 33 ++++ net/ethtool/common.h | 3 + net/ethtool/netlink.c | 6 +- net/ethtool/netlink.h | 5 +- net/ethtool/ts.h | 52 ++++++ net/ethtool/tsinfo.c | 239 +++++++++++++++++++++++= +++- 11 files changed, 465 insertions(+), 14 deletions(-) diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/n= etworking/ethtool-netlink.rst index 70ecc3821007..038d8c2ec655 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -1245,9 +1245,10 @@ Gets timestamping information like ``ETHTOOL_GET_TS_= INFO`` ioctl request. =20 Request contents: =20 - =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D - ``ETHTOOL_A_TSINFO_HEADER`` nested request header - =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D + ``ETHTOOL_A_TSINFO_HEADER`` nested request header + ``ETHTOOL_A_TSINFO_HWTSTAMP_PROVIDER`` nested PTP hw clock provider + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D =20 Kernel response contents: =20 diff --git a/drivers/ptp/ptp_clock_consumer.c b/drivers/ptp/ptp_clock_consu= mer.c index f521b07da231..0eec0e910d1a 100644 --- a/drivers/ptp/ptp_clock_consumer.c +++ b/drivers/ptp/ptp_clock_consumer.c @@ -114,3 +114,69 @@ int ptp_clock_index(struct ptp_clock *ptp) return ptp->index; } EXPORT_SYMBOL(ptp_clock_index); + +struct ptp_clock *netdev_ptp_clock_find(struct net_device *dev, + unsigned long *indexp) +{ + struct ptp_clock *ptp; + unsigned long index; + + xa_for_each_start(&ptp_clocks_map, index, ptp, *indexp) { + if ((ptp->phc_source =3D=3D HWTSTAMP_SOURCE_NETDEV && + ptp->netdev =3D=3D dev) || + (ptp->phc_source =3D=3D HWTSTAMP_SOURCE_PHYLIB && + ptp->phydev->attached_dev =3D=3D dev)) { + *indexp =3D index; + return ptp; + } + } + + return NULL; +}; + +bool +netdev_support_hwtstamp_qualifier(struct net_device *dev, + enum hwtstamp_provider_qualifier qualifier) +{ + const struct ethtool_ops *ops =3D dev->ethtool_ops; + + if (!ops) + return false; + + /* Return true with precise qualifier and with NIC without + * qualifier description to not break the old behavior. + */ + if (!ops->supported_hwtstamp_qualifiers && + qualifier =3D=3D HWTSTAMP_PROVIDER_QUALIFIER_PRECISE) + return true; + + if (ops->supported_hwtstamp_qualifiers & BIT(qualifier)) + return true; + + return false; +} + +bool netdev_support_hwtstamp(struct net_device *dev, + struct hwtstamp_provider *hwtstamp) +{ + struct ptp_clock *tmp_ptp; + unsigned long index =3D 0; + + netdev_for_each_ptp_clock_start(dev, index, tmp_ptp, 0) { + if (tmp_ptp !=3D hwtstamp->ptp) + continue; + + if (ptp_clock_from_phylib(hwtstamp->ptp) && + hwtstamp->qualifier =3D=3D HWTSTAMP_PROVIDER_QUALIFIER_PRECISE) + return true; + + if (ptp_clock_from_netdev(hwtstamp->ptp) && + netdev_support_hwtstamp_qualifier(dev, + hwtstamp->qualifier)) + return true; + + return false; + } + + return false; +} diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 12f6dc567598..239f6f063b80 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -711,6 +711,7 @@ struct ethtool_rxfh_param { * @cmd: command number =3D %ETHTOOL_GET_TS_INFO * @so_timestamping: bit mask of the sum of the supported SO_TIMESTAMPING = flags * @phc_index: device index of the associated PHC, or -1 if there is none + * @phc_qualifier: qualifier of the associated PHC * @tx_types: bit mask of the supported hwtstamp_tx_types enumeration valu= es * @rx_filters: bit mask of the supported hwtstamp_rx_filters enumeration = values */ @@ -718,6 +719,7 @@ struct kernel_ethtool_ts_info { u32 cmd; u32 so_timestamping; int phc_index; + enum hwtstamp_provider_qualifier phc_qualifier; enum hwtstamp_tx_types tx_types; enum hwtstamp_rx_filters rx_filters; }; @@ -746,6 +748,7 @@ struct kernel_ethtool_ts_info { * @rss_context argument to @create_rxfh_context and friends. * @supported_coalesce_params: supported types of interrupt coalescing. * @supported_ring_params: supported ring params. + * @supported_hwtstamp_qualifiers: bitfield of supported hwtstamp qualifie= r. * @get_drvinfo: Report driver/device information. Modern drivers no * longer have to implement this callback. Most fields are * correctly filled in by the core using system information, or @@ -962,6 +965,7 @@ struct ethtool_ops { u32 rxfh_max_num_contexts; u32 supported_coalesce_params; u32 supported_ring_params; + u32 supported_hwtstamp_qualifiers; void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *); int (*get_regs_len)(struct net_device *); void (*get_regs)(struct net_device *, struct ethtool_regs *, void *); diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_ker= nel.h index cf6a72d2868a..0ac6637757fe 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -452,6 +452,45 @@ void ptp_clock_put(struct device *dev, struct ptp_cloc= k *ptp); =20 void remove_hwtstamp_provider(struct rcu_head *rcu_head); =20 +/** + * netdev_ptp_clock_find() - obtain the next PTP clock in the netdev + * topology + * + * @dev: Pointer of the net device. + * @indexp: Pointer of ptp clock index start point. + * + * Return: Pointer of the PTP clock found, NULL otherwise. + */ + +struct ptp_clock *netdev_ptp_clock_find(struct net_device *dev, + unsigned long *indexp); + +/** + * netdev_support_hwtstamp_qualifier() - Verify if the net device support = the + * hwtstamp qualifier + * + * @dev: Pointer of the net device. + * @qualifier: hwtstamp provider qualifier. + * + * Return: True if the net device support the htstamp qualifier false othe= rwise. + */ + +bool netdev_support_hwtstamp_qualifier(struct net_device *dev, + enum hwtstamp_provider_qualifier qualifier); + +/** + * netdev_support_hwtstamp() - Verify if the hwtstamp belong to the netdev + * topology + * + * @dev: Pointer of the net device + * @hwtstamp: Pointer of the hwtstamp provider + * + * Return: True if the hwtstamp belong to the netdev topology false otherw= ise. + */ + +bool netdev_support_hwtstamp(struct net_device *dev, + struct hwtstamp_provider *hwtstamp); + /** * ptp_find_pin() - obtain the pin index of a given auxiliary function * @@ -540,6 +579,16 @@ static inline void ptp_clock_put(struct device *dev, s= truct ptp_clock *ptp) static inline struct ptp_clock *ptp_clock_get_by_index(struct device *dev, int index) { return NULL; } +static inline struct ptp_clock *netdev_ptp_clock_find(struct net_device *d= ev, + unsigned long *indexp) +{ return NULL; } +static inline bool +netdev_support_hwtstamp_qualifier(struct net_device *dev, + enum hwtstamp_provider_qualifier qualifier) +{ return false; } +static inline bool netdev_support_hwtstamp(struct net_device *dev, + struct hwtstamp_provider *hwtst) +{ return false; } static inline void remove_hwtstamp_provider(struct rcu_head *rcu_head) { return; } static inline int ptp_find_pin(struct ptp_clock *ptp, @@ -556,6 +605,10 @@ static inline void ptp_cancel_worker_sync(struct ptp_c= lock *ptp) { } #endif =20 +#define netdev_for_each_ptp_clock_start(dev, index, entry, start) \ + for (index =3D start, entry =3D netdev_ptp_clock_find(dev, &index); \ + entry; index++, entry =3D netdev_ptp_clock_find(dev, &index)) + #if IS_BUILTIN(CONFIG_PTP_1588_CLOCK) /* * These are called by the network core, and don't work if PTP is in diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/etht= ool_netlink.h index 283305f6b063..e892375389f1 100644 --- a/include/uapi/linux/ethtool_netlink.h +++ b/include/uapi/linux/ethtool_netlink.h @@ -496,8 +496,16 @@ enum { ETHTOOL_A_EEE_MAX =3D (__ETHTOOL_A_EEE_CNT - 1) }; =20 -/* TSINFO */ +enum { + ETHTOOL_A_TS_HWTSTAMP_PROVIDER_UNSPEC, + ETHTOOL_A_TS_HWTSTAMP_PROVIDER_INDEX, /* u32 */ + ETHTOOL_A_TS_HWTSTAMP_PROVIDER_QUALIFIER, /* u32 */ =20 + __ETHTOOL_A_TS_HWTSTAMP_PROVIDER_CNT, + ETHTOOL_A_TS_HWTSTAMP_PROVIDER_MAX =3D (__ETHTOOL_A_TS_HWTSTAMP_PROVIDER_= CNT - 1) +}; + +/* TSINFO */ enum { ETHTOOL_A_TSINFO_UNSPEC, ETHTOOL_A_TSINFO_HEADER, /* nest - _A_HEADER_* */ @@ -506,6 +514,7 @@ enum { ETHTOOL_A_TSINFO_RX_FILTERS, /* bitset */ ETHTOOL_A_TSINFO_PHC_INDEX, /* u32 */ ETHTOOL_A_TSINFO_STATS, /* nest - _A_TSINFO_STAT */ + ETHTOOL_A_TSINFO_HWTSTAMP_PROVIDER, /* nest - *_TS_HWTSTAMP_PROVIDER_* */ =20 /* add new constants above here */ __ETHTOOL_A_TSINFO_CNT, diff --git a/net/ethtool/common.c b/net/ethtool/common.c index 0d62363dbd9d..a50cddd36b6d 100644 --- a/net/ethtool/common.c +++ b/net/ethtool/common.c @@ -745,12 +745,45 @@ int ethtool_check_ops(const struct ethtool_ops *ops) return 0; } =20 +int ethtool_get_ts_info_by_phc(struct net_device *dev, + struct kernel_ethtool_ts_info *info, + struct hwtstamp_provider *hwtstamp) +{ + const struct ethtool_ops *ops =3D dev->ethtool_ops; + int err =3D 0; + + memset(info, 0, sizeof(*info)); + info->cmd =3D ETHTOOL_GET_TS_INFO; + info->phc_qualifier =3D hwtstamp->qualifier; + info->phc_index =3D -1; + + if (!netdev_support_hwtstamp(dev, hwtstamp)) + return -ENODEV; + + if (ptp_clock_from_phylib(hwtstamp->ptp) && + phy_has_tsinfo(ptp_clock_phydev(hwtstamp->ptp))) + err =3D phy_ts_info(ptp_clock_phydev(hwtstamp->ptp), info); + + if (ptp_clock_from_netdev(hwtstamp->ptp) && ops->get_ts_info) + err =3D ops->get_ts_info(dev, info); + + info->so_timestamping |=3D SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE; + + return err; +} + int __ethtool_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts= _info *info) { const struct ethtool_ops *ops =3D dev->ethtool_ops; struct phy_device *phydev =3D dev->phydev; + struct hwtstamp_provider *hwtstamp; int err =3D 0; =20 + hwtstamp =3D rtnl_dereference(dev->hwtstamp); + if (hwtstamp) + return ethtool_get_ts_info_by_phc(dev, info, hwtstamp); + memset(info, 0, sizeof(*info)); info->cmd =3D ETHTOOL_GET_TS_INFO; info->phc_index =3D -1; diff --git a/net/ethtool/common.h b/net/ethtool/common.h index 4a2de3ce7354..a07628cd7190 100644 --- a/net/ethtool/common.h +++ b/net/ethtool/common.h @@ -49,6 +49,9 @@ int ethtool_check_max_channel(struct net_device *dev, struct genl_info *info); int ethtool_check_rss_ctx_busy(struct net_device *dev, u32 rss_context); int __ethtool_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts= _info *info); +int ethtool_get_ts_info_by_phc(struct net_device *dev, + struct kernel_ethtool_ts_info *info, + struct hwtstamp_provider *hwtst); =20 extern const struct ethtool_phy_ops *ethtool_phy_ops; extern const struct ethtool_pse_ops *ethtool_pse_ops; diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c index e3f0ef6b851b..6ae1d91f36e7 100644 --- a/net/ethtool/netlink.c +++ b/net/ethtool/netlink.c @@ -1074,9 +1074,9 @@ static const struct genl_ops ethtool_genl_ops[] =3D { { .cmd =3D ETHTOOL_MSG_TSINFO_GET, .doit =3D ethnl_default_doit, - .start =3D ethnl_default_start, - .dumpit =3D ethnl_default_dumpit, - .done =3D ethnl_default_done, + .start =3D ethnl_tsinfo_start, + .dumpit =3D ethnl_tsinfo_dumpit, + .done =3D ethnl_tsinfo_done, .policy =3D ethnl_tsinfo_get_policy, .maxattr =3D ARRAY_SIZE(ethnl_tsinfo_get_policy) - 1, }, diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h index 203b08eb6c6f..960cda13e4fc 100644 --- a/net/ethtool/netlink.h +++ b/net/ethtool/netlink.h @@ -464,7 +464,7 @@ extern const struct nla_policy ethnl_pause_get_policy[E= THTOOL_A_PAUSE_STATS_SRC extern const struct nla_policy ethnl_pause_set_policy[ETHTOOL_A_PAUSE_TX += 1]; extern const struct nla_policy ethnl_eee_get_policy[ETHTOOL_A_EEE_HEADER += 1]; extern const struct nla_policy ethnl_eee_set_policy[ETHTOOL_A_EEE_TX_LPI_T= IMER + 1]; -extern const struct nla_policy ethnl_tsinfo_get_policy[ETHTOOL_A_TSINFO_HE= ADER + 1]; +extern const struct nla_policy ethnl_tsinfo_get_policy[ETHTOOL_A_TSINFO_MA= X + 1]; extern const struct nla_policy ethnl_cable_test_act_policy[ETHTOOL_A_CABLE= _TEST_HEADER + 1]; extern const struct nla_policy ethnl_cable_test_tdr_act_policy[ETHTOOL_A_C= ABLE_TEST_TDR_CFG + 1]; extern const struct nla_policy ethnl_tunnel_info_get_policy[ETHTOOL_A_TUNN= EL_INFO_HEADER + 1]; @@ -499,6 +499,9 @@ int ethnl_phy_start(struct netlink_callback *cb); int ethnl_phy_doit(struct sk_buff *skb, struct genl_info *info); int ethnl_phy_dumpit(struct sk_buff *skb, struct netlink_callback *cb); int ethnl_phy_done(struct netlink_callback *cb); +int ethnl_tsinfo_start(struct netlink_callback *cb); +int ethnl_tsinfo_dumpit(struct sk_buff *skb, struct netlink_callback *cb); +int ethnl_tsinfo_done(struct netlink_callback *cb); =20 extern const char stats_std_names[__ETHTOOL_STATS_CNT][ETH_GSTRING_LEN]; extern const char stats_eth_phy_names[__ETHTOOL_A_STATS_ETH_PHY_CNT][ETH_G= STRING_LEN]; diff --git a/net/ethtool/ts.h b/net/ethtool/ts.h new file mode 100644 index 000000000000..1fb7b6d9d99a --- /dev/null +++ b/net/ethtool/ts.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef _NET_ETHTOOL_TS_H +#define _NET_ETHTOOL_TS_H + +#include "netlink.h" + +struct hwtst_provider { + int index; + u32 qualifier; +}; + +static const struct nla_policy +ethnl_ts_hwtst_prov_policy[ETHTOOL_A_TS_HWTSTAMP_PROVIDER_MAX + 1] =3D { + [ETHTOOL_A_TS_HWTSTAMP_PROVIDER_INDEX] =3D + NLA_POLICY_MIN(NLA_S32, 0), + [ETHTOOL_A_TS_HWTSTAMP_PROVIDER_QUALIFIER] =3D + NLA_POLICY_MAX(NLA_U32, HWTSTAMP_PROVIDER_QUALIFIER_CNT - 1) +}; + +static inline int ts_parse_hwtst_provider(const struct nlattr *nest, + struct hwtst_provider *hwtst, + struct netlink_ext_ack *extack, + bool *mod) +{ + struct nlattr *tb[ARRAY_SIZE(ethnl_ts_hwtst_prov_policy)]; + int ret; + + ret =3D nla_parse_nested(tb, + ARRAY_SIZE(ethnl_ts_hwtst_prov_policy) - 1, + nest, + ethnl_ts_hwtst_prov_policy, extack); + if (ret < 0) + return ret; + + if (NL_REQ_ATTR_CHECK(extack, nest, tb, + ETHTOOL_A_TS_HWTSTAMP_PROVIDER_INDEX) || + NL_REQ_ATTR_CHECK(extack, nest, tb, + ETHTOOL_A_TS_HWTSTAMP_PROVIDER_QUALIFIER)) + return -EINVAL; + + ethnl_update_u32(&hwtst->index, + tb[ETHTOOL_A_TS_HWTSTAMP_PROVIDER_INDEX], + mod); + ethnl_update_u32(&hwtst->qualifier, + tb[ETHTOOL_A_TS_HWTSTAMP_PROVIDER_QUALIFIER], + mod); + + return 0; +} + +#endif /* _NET_ETHTOOL_TS_H */ diff --git a/net/ethtool/tsinfo.c b/net/ethtool/tsinfo.c index 03d12d6f79ca..1ff992fcaf6a 100644 --- a/net/ethtool/tsinfo.c +++ b/net/ethtool/tsinfo.c @@ -1,13 +1,16 @@ // SPDX-License-Identifier: GPL-2.0-only =20 #include +#include =20 #include "netlink.h" #include "common.h" #include "bitset.h" +#include "ts.h" =20 struct tsinfo_req_info { struct ethnl_req_info base; + struct hwtst_provider hwtst; }; =20 struct tsinfo_reply_data { @@ -16,35 +19,76 @@ struct tsinfo_reply_data { struct ethtool_ts_stats stats; }; =20 +#define TSINFO_REQINFO(__req_base) \ + container_of(__req_base, struct tsinfo_req_info, base) + #define TSINFO_REPDATA(__reply_base) \ container_of(__reply_base, struct tsinfo_reply_data, base) =20 #define ETHTOOL_TS_STAT_CNT \ (__ETHTOOL_A_TS_STAT_CNT - (ETHTOOL_A_TS_STAT_UNSPEC + 1)) =20 -const struct nla_policy ethnl_tsinfo_get_policy[] =3D { +const struct nla_policy ethnl_tsinfo_get_policy[ETHTOOL_A_TSINFO_MAX + 1] = =3D { [ETHTOOL_A_TSINFO_HEADER] =3D NLA_POLICY_NESTED(ethnl_header_policy_stats), + [ETHTOOL_A_TSINFO_HWTSTAMP_PROVIDER] =3D + NLA_POLICY_NESTED(ethnl_ts_hwtst_prov_policy), }; =20 +static int +tsinfo_parse_request(struct ethnl_req_info *req_base, struct nlattr **tb, + struct netlink_ext_ack *extack) +{ + struct tsinfo_req_info *req =3D TSINFO_REQINFO(req_base); + bool mod =3D false; + + req->hwtst.index =3D -1; + + if (!tb[ETHTOOL_A_TSINFO_HWTSTAMP_PROVIDER]) + return 0; + + return ts_parse_hwtst_provider(tb[ETHTOOL_A_TSINFO_HWTSTAMP_PROVIDER], + &req->hwtst, extack, &mod); +} + static int tsinfo_prepare_data(const struct ethnl_req_info *req_base, struct ethnl_reply_data *reply_base, const struct genl_info *info) { struct tsinfo_reply_data *data =3D TSINFO_REPDATA(reply_base); + struct tsinfo_req_info *req =3D TSINFO_REQINFO(req_base); struct net_device *dev =3D reply_base->dev; int ret; =20 ret =3D ethnl_ops_begin(dev); if (ret < 0) return ret; + if (req_base->flags & ETHTOOL_FLAG_STATS) { ethtool_stats_init((u64 *)&data->stats, sizeof(data->stats) / sizeof(u64)); if (dev->ethtool_ops->get_ts_stats) dev->ethtool_ops->get_ts_stats(dev, &data->stats); } - ret =3D __ethtool_get_ts_info(dev, &data->ts_info); + + if (req->hwtst.index !=3D -1) { + struct hwtstamp_provider hwtstamp; + + hwtstamp.ptp =3D ptp_clock_get_by_index(&dev->dev, req->hwtst.index); + if (!hwtstamp.ptp) { + ret =3D -ENODEV; + goto out; + } + hwtstamp.qualifier =3D req->hwtst.qualifier; + + ret =3D ethtool_get_ts_info_by_phc(dev, &data->ts_info, + &hwtstamp); + ptp_clock_put(&dev->dev, hwtstamp.ptp); + } else { + ret =3D __ethtool_get_ts_info(dev, &data->ts_info); + } + +out: ethnl_ops_complete(dev); =20 return ret; @@ -87,8 +131,11 @@ static int tsinfo_reply_size(const struct ethnl_req_inf= o *req_base, return ret; len +=3D ret; /* _TSINFO_RX_FILTERS */ } - if (ts_info->phc_index >=3D 0) + if (ts_info->phc_index >=3D 0) { + /* _TSINFO_HWTSTAMP_PROVIDER */ + len +=3D 2 * nla_total_size(sizeof(u32)); len +=3D nla_total_size(sizeof(u32)); /* _TSINFO_PHC_INDEX */ + } if (req_base->flags & ETHTOOL_FLAG_STATS) len +=3D nla_total_size(0) + /* _TSINFO_STATS */ nla_total_size_64bit(sizeof(u64)) * ETHTOOL_TS_STAT_CNT; @@ -163,9 +210,29 @@ static int tsinfo_fill_reply(struct sk_buff *skb, if (ret < 0) return ret; } - if (ts_info->phc_index >=3D 0 && - nla_put_u32(skb, ETHTOOL_A_TSINFO_PHC_INDEX, ts_info->phc_index)) - return -EMSGSIZE; + if (ts_info->phc_index >=3D 0) { + struct nlattr *nest; + + ret =3D nla_put_u32(skb, ETHTOOL_A_TSINFO_PHC_INDEX, + ts_info->phc_index); + if (ret) + return -EMSGSIZE; + + nest =3D nla_nest_start(skb, ETHTOOL_A_TSINFO_HWTSTAMP_PROVIDER); + if (!nest) + return -EMSGSIZE; + + if (nla_put_u32(skb, ETHTOOL_A_TS_HWTSTAMP_PROVIDER_INDEX, + ts_info->phc_index) || + nla_put_u32(skb, + ETHTOOL_A_TS_HWTSTAMP_PROVIDER_QUALIFIER, + ts_info->phc_qualifier)) { + nla_nest_cancel(skb, nest); + return -EMSGSIZE; + } + + nla_nest_end(skb, nest); + } if (req_base->flags & ETHTOOL_FLAG_STATS && tsinfo_put_stats(skb, &data->stats)) return -EMSGSIZE; @@ -173,6 +240,165 @@ static int tsinfo_fill_reply(struct sk_buff *skb, return 0; } =20 +struct ethnl_tsinfo_dump_ctx { + struct tsinfo_req_info *req_info; + struct tsinfo_reply_data *reply_data; + unsigned long pos_ifindex; + unsigned long pos_phcindex; + enum hwtstamp_provider_qualifier pos_phcqualifier; +}; + +static int ethnl_tsinfo_dump_one_ptp(struct sk_buff *skb, struct net_devic= e *dev, + struct netlink_callback *cb, + struct ptp_clock *ptp) +{ + struct ethnl_tsinfo_dump_ctx *ctx =3D (void *)cb->ctx; + struct tsinfo_reply_data *reply_data; + struct tsinfo_req_info *req_info; + void *ehdr =3D NULL; + int ret =3D 0; + + reply_data =3D ctx->reply_data; + req_info =3D ctx->req_info; + req_info->hwtst.index =3D ptp_clock_index(ptp); + + for (; ctx->pos_phcqualifier < HWTSTAMP_PROVIDER_QUALIFIER_CNT; + ctx->pos_phcqualifier++) { + if (!netdev_support_hwtstamp_qualifier(dev, + ctx->pos_phcqualifier)) + continue; + + ehdr =3D ethnl_dump_put(skb, cb, + ETHTOOL_MSG_TSINFO_GET_REPLY); + if (!ehdr) + return -EMSGSIZE; + + memset(reply_data, 0, sizeof(*reply_data)); + reply_data->base.dev =3D dev; + req_info->hwtst.qualifier =3D ctx->pos_phcqualifier; + ret =3D tsinfo_prepare_data(&req_info->base, + &reply_data->base, + genl_info_dump(cb)); + if (ret < 0) + break; + + ret =3D ethnl_fill_reply_header(skb, dev, + ETHTOOL_A_TSINFO_HEADER); + if (ret < 0) + break; + + ret =3D tsinfo_fill_reply(skb, &req_info->base, + &reply_data->base); + if (ret < 0) + break; + } + + reply_data->base.dev =3D NULL; + if (!ret && ehdr) + genlmsg_end(skb, ehdr); + else + genlmsg_cancel(skb, ehdr); + return ret; +} + +static int ethnl_tsinfo_dump_one_dev(struct sk_buff *skb, struct net_devic= e *dev, + struct netlink_callback *cb) +{ + struct ethnl_tsinfo_dump_ctx *ctx =3D (void *)cb->ctx; + struct ptp_clock *ptp; + int ret =3D 0; + + netdev_for_each_ptp_clock_start(dev, ctx->pos_phcindex, ptp, + ctx->pos_phcindex) { + ret =3D ethnl_tsinfo_dump_one_ptp(skb, dev, cb, ptp); + if (ret < 0 && ret !=3D -EOPNOTSUPP) + break; + ctx->pos_phcqualifier =3D HWTSTAMP_PROVIDER_QUALIFIER_PRECISE; + } + + return ret; +} + +int ethnl_tsinfo_dumpit(struct sk_buff *skb, struct netlink_callback *cb) +{ + struct ethnl_tsinfo_dump_ctx *ctx =3D (void *)cb->ctx; + struct net *net =3D sock_net(skb->sk); + struct net_device *dev; + int ret =3D 0; + + rtnl_lock(); + if (ctx->req_info->base.dev) { + ret =3D ethnl_tsinfo_dump_one_dev(skb, + ctx->req_info->base.dev, + cb); + } else { + for_each_netdev_dump(net, dev, ctx->pos_ifindex) { + ret =3D ethnl_tsinfo_dump_one_dev(skb, dev, cb); + if (ret < 0 && ret !=3D -EOPNOTSUPP) + break; + ctx->pos_phcindex =3D 0; + } + } + rtnl_unlock(); + + return ret; +} + +int ethnl_tsinfo_start(struct netlink_callback *cb) +{ + const struct genl_dumpit_info *info =3D genl_dumpit_info(cb); + struct ethnl_tsinfo_dump_ctx *ctx =3D (void *)cb->ctx; + struct nlattr **tb =3D info->info.attrs; + struct tsinfo_reply_data *reply_data; + struct tsinfo_req_info *req_info; + int ret; + + BUILD_BUG_ON(sizeof(*ctx) > sizeof(cb->ctx)); + + req_info =3D kzalloc(sizeof(*req_info), GFP_KERNEL); + if (!req_info) + return -ENOMEM; + reply_data =3D kzalloc(sizeof(*reply_data), GFP_KERNEL); + if (!reply_data) { + ret =3D -ENOMEM; + goto free_req_info; + } + + ret =3D ethnl_parse_header_dev_get(&req_info->base, + tb[ETHTOOL_A_TSINFO_HEADER], + sock_net(cb->skb->sk), cb->extack, + false); + if (ret < 0) + goto free_reply_data; + + ctx->req_info =3D req_info; + ctx->reply_data =3D reply_data; + ctx->pos_ifindex =3D 0; + ctx->pos_phcindex =3D 0; + ctx->pos_phcqualifier =3D HWTSTAMP_PROVIDER_QUALIFIER_PRECISE; + + return 0; + +free_reply_data: + kfree(reply_data); +free_req_info: + kfree(req_info); + + return ret; +} + +int ethnl_tsinfo_done(struct netlink_callback *cb) +{ + struct ethnl_tsinfo_dump_ctx *ctx =3D (void *)cb->ctx; + struct tsinfo_req_info *req_info =3D ctx->req_info; + + ethnl_parse_header_dev_put(&req_info->base); + kfree(ctx->reply_data); + kfree(ctx->req_info); + + return 0; +} + const struct ethnl_request_ops ethnl_tsinfo_request_ops =3D { .request_cmd =3D ETHTOOL_MSG_TSINFO_GET, .reply_cmd =3D ETHTOOL_MSG_TSINFO_GET_REPLY, @@ -180,6 +406,7 @@ const struct ethnl_request_ops ethnl_tsinfo_request_ops= =3D { .req_info_size =3D sizeof(struct tsinfo_req_info), .reply_data_size =3D sizeof(struct tsinfo_reply_data), =20 + .parse_request =3D tsinfo_parse_request, .prepare_data =3D tsinfo_prepare_data, .reply_size =3D tsinfo_reply_size, .fill_reply =3D tsinfo_fill_reply, --=20 2.34.1 From nobody Mon Nov 25 22:28:16 2024 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 1087D1CFEA5; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-9-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com Introduce support for ETHTOOL_MSG_TSCONFIG_GET/SET ethtool netlink socket to read and configure hwtstamp configuration of a PHC provider. Note that simultaneous hwtstamp isn't supported; configuring a new one disables the previous setting. Signed-off-by: Kory Maincent --- Jacob I removed your Reviewed-by as there is few changes on this patch. Changes in v16: - Add a new patch to separate tsinfo into a new tsconfig command to get and set the hwtstamp config. Changes in v17: - Fix a doc misalignment. Changes in v18: - Few changes in the set command - Add a set-reply ethtool socket - Add missing tsconfig netlink the documentation --- Documentation/networking/ethtool-netlink.rst | 76 +++++ Documentation/networking/timestamping.rst | 38 ++- include/uapi/linux/ethtool_netlink.h | 19 ++ net/ethtool/Makefile | 2 +- net/ethtool/netlink.c | 20 ++ net/ethtool/netlink.h | 3 + net/ethtool/tsconfig.c | 406 +++++++++++++++++++++++= ++++ 7 files changed, 549 insertions(+), 15 deletions(-) diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/n= etworking/ethtool-netlink.rst index 038d8c2ec655..291f61937f00 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -237,6 +237,8 @@ Userspace to kernel: ``ETHTOOL_MSG_MM_SET`` set MAC merge layer parameters ``ETHTOOL_MSG_MODULE_FW_FLASH_ACT`` flash transceiver module firmware ``ETHTOOL_MSG_PHY_GET`` get Ethernet PHY information + ``ETHTOOL_MSG_TSCONFIG_GET`` get hw timestamping configuration + ``ETHTOOL_MSG_TSCONFIG_SET`` set hw timestamping configuration =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 Kernel to userspace: @@ -286,6 +288,9 @@ Kernel to userspace: ``ETHTOOL_MSG_MODULE_FW_FLASH_NTF`` transceiver module flash updates ``ETHTOOL_MSG_PHY_GET_REPLY`` Ethernet PHY information ``ETHTOOL_MSG_PHY_NTF`` Ethernet PHY information + ``ETHTOOL_MSG_TSCONFIG_GET_REPLY`` hw timestamping configuration + ``ETHTOOL_MSG_TSCONFIG_SET_REPLY`` hw timestamping configuration + ``ETHTOOL_MSG_TSCONFIG_NTF`` hw timestamping configuration =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 ``GET`` requests are sent by userspace applications to retrieve device @@ -2244,6 +2249,75 @@ Kernel response contents: When ``ETHTOOL_A_PHY_UPSTREAM_TYPE`` is PHY_UPSTREAM_PHY, the PHY's parent= is another PHY. =20 +TSCONFIG_GET +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +Retrieves the information about the current hardware timestamping source a= nd +configuration. + +It is similar to the deprecated ``SIOCGHWTSTAMP`` ioctl request. + +Request contents: + + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + ``ETHTOOL_A_TSCONFIG_HEADER`` nested request header + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +Kernel response contents: + + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D + ``ETHTOOL_A_TSCONFIG_HEADER`` nested request header + ``ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER`` nested PTP hw clock provider + ``ETHTOOL_A_TSCONFIG_TX_TYPES`` bitset hwtstamp Tx type + ``ETHTOOL_A_TSCONFIG_RX_FILTERS`` bitset hwtstamp Rx filter + ``ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS`` u32 hwtstamp flags + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D + +When set the ``ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER`` attribute identifies= the +source of the hw timestamping provider. It is composed by +``ETHTOOL_A_TS_HWTSTAMP_PROVIDER_INDEX`` attribute which describe the inde= x of +the PTP device and ``ETHTOOL_A_TS_HWTSTAMP_PROVIDER_QUALIFIER`` which desc= ribe +the qualifier of the timestamp. + +When set the ``ETHTOOL_A_TSCONFIG_TX_TYPES``, ``ETHTOOL_A_TSCONFIG_RX_FILT= ERS`` +and the ``ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS`` attributes identify the Tx +type, the Rx filter and the flags configured for the current hw timestampi= ng +provider. The attributes are propagated to the driver through the following +structure: + +.. kernel-doc:: include/linux/net_tstamp.h + :identifiers: kernel_hwtstamp_config + +TSCONFIG_SET +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +Set the information about the current hardware timestamping source and +configuration. + +It is similar to the deprecated ``SIOCSHWTSTAMP`` ioctl request. + +Request contents: + + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D + ``ETHTOOL_A_TSCONFIG_HEADER`` nested request header + ``ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER`` nested PTP hw clock provider + ``ETHTOOL_A_TSCONFIG_TX_TYPES`` bitset hwtstamp Tx type + ``ETHTOOL_A_TSCONFIG_RX_FILTERS`` bitset hwtstamp Rx filter + ``ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS`` u32 hwtstamp flags + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D + +Kernel response contents: + + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D + ``ETHTOOL_A_TSCONFIG_HEADER`` nested request header + ``ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER`` nested PTP hw clock provider + ``ETHTOOL_A_TSCONFIG_TX_TYPES`` bitset hwtstamp Tx type + ``ETHTOOL_A_TSCONFIG_RX_FILTERS`` bitset hwtstamp Rx filter + ``ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS`` u32 hwtstamp flags + =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D =3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D + +For a description of each attribute, see ``TSCONFIG_GET``. + Request translation =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 @@ -2352,4 +2426,6 @@ are netlink only. n/a ``ETHTOOL_MSG_MM_SET`` n/a ``ETHTOOL_MSG_MODULE_FW_FLASH_ACT`` n/a ``ETHTOOL_MSG_PHY_GET`` + ``SIOCGHWTSTAMP`` ``ETHTOOL_MSG_TSCONFIG_GET`` + ``SIOCSHWTSTAMP`` ``ETHTOOL_MSG_TSCONFIG_SET`` =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D diff --git a/Documentation/networking/timestamping.rst b/Documentation/netw= orking/timestamping.rst index b37bfbfc7d79..61ef9da10e28 100644 --- a/Documentation/networking/timestamping.rst +++ b/Documentation/networking/timestamping.rst @@ -525,8 +525,8 @@ implicitly defined. ts[0] holds a software timestamp if= set, ts[1] is again deprecated and ts[2] holds a hardware timestamp if set. =20 =20 -3. Hardware Timestamping configuration: SIOCSHWTSTAMP and SIOCGHWTSTAMP -=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D +3. Hardware Timestamping configuration: ETHTOOL_MSG_TSCONFIG_SET/GET +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 Hardware time stamping must also be initialized for each device driver that is expected to do hardware time stamping. The parameter is defined in @@ -539,12 +539,14 @@ include/uapi/linux/net_tstamp.h as:: }; =20 Desired behavior is passed into the kernel and to a specific device by -calling ioctl(SIOCSHWTSTAMP) with a pointer to a struct ifreq whose -ifr_data points to a struct hwtstamp_config. The tx_type and -rx_filter are hints to the driver what it is expected to do. If -the requested fine-grained filtering for incoming packets is not -supported, the driver may time stamp more than just the requested types -of packets. +calling the tsconfig netlink socket ``ETHTOOL_MSG_TSCONFIG_SET``. +The ``ETHTOOL_A_TSCONFIG_TX_TYPES``, ``ETHTOOL_A_TSCONFIG_RX_FILTERS`` and +``ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS`` netlink attributes are then used to = set +the struct hwtstamp_config accordingly. + +The ``ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER`` netlink nested attribute is u= sed +to select the source of the hardware time stamping. It is composed of an i= ndex +for the device source and a qualifier for the type of time stamping. =20 Drivers are free to use a more permissive configuration than the requested configuration. It is expected that drivers should only implement directly = the @@ -563,9 +565,16 @@ Only a processes with admin rights may change the conf= iguration. User space is responsible to ensure that multiple processes don't interfere with each other and that the settings are reset. =20 -Any process can read the actual configuration by passing this -structure to ioctl(SIOCGHWTSTAMP) in the same way. However, this has -not been implemented in all drivers. +Any process can read the actual configuration by requesting tsconfig netli= nk +socket ``ETHTOOL_MSG_TSCONFIG_GET``. + +The legacy configuration is the use of the ioctl(SIOCSHWTSTAMP) with a poi= nter +to a struct ifreq whose ifr_data points to a struct hwtstamp_config. +The tx_type and rx_filter are hints to the driver what it is expected to d= o. +If the requested fine-grained filtering for incoming packets is not +supported, the driver may time stamp more than just the requested types +of packets. ioctl(SIOCGHWTSTAMP) is used in the same way as the +ioctl(SIOCSHWTSTAMP). However, this has not been implemented in all driver= s. =20 :: =20 @@ -610,9 +619,10 @@ not been implemented in all drivers. -------------------------------------------------------- =20 A driver which supports hardware time stamping must support the -SIOCSHWTSTAMP ioctl and update the supplied struct hwtstamp_config with -the actual values as described in the section on SIOCSHWTSTAMP. It -should also support SIOCGHWTSTAMP. +ndo_hwtstamp_set NDO or the legacy SIOCSHWTSTAMP ioctl and update the +supplied struct hwtstamp_config with the actual values as described in +the section on SIOCSHWTSTAMP. It should also support ndo_hwtstamp_get or +the legacy SIOCGHWTSTAMP. =20 Time stamps for received packets must be stored in the skb. To get a point= er to the shared time stamp structure of the skb call skb_hwtstamps(). Then diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/etht= ool_netlink.h index e892375389f1..4e96a4cf0831 100644 --- a/include/uapi/linux/ethtool_netlink.h +++ b/include/uapi/linux/ethtool_netlink.h @@ -59,6 +59,8 @@ enum { ETHTOOL_MSG_MM_SET, ETHTOOL_MSG_MODULE_FW_FLASH_ACT, ETHTOOL_MSG_PHY_GET, + ETHTOOL_MSG_TSCONFIG_GET, + ETHTOOL_MSG_TSCONFIG_SET, =20 /* add new constants above here */ __ETHTOOL_MSG_USER_CNT, @@ -114,6 +116,9 @@ enum { ETHTOOL_MSG_MODULE_FW_FLASH_NTF, ETHTOOL_MSG_PHY_GET_REPLY, ETHTOOL_MSG_PHY_NTF, + ETHTOOL_MSG_TSCONFIG_GET_REPLY, + ETHTOOL_MSG_TSCONFIG_SET_REPLY, + ETHTOOL_MSG_TSCONFIG_NTF, =20 /* add new constants above here */ __ETHTOOL_MSG_KERNEL_CNT, @@ -534,6 +539,20 @@ enum { =20 }; =20 +/* TSCONFIG */ +enum { + ETHTOOL_A_TSCONFIG_UNSPEC, + ETHTOOL_A_TSCONFIG_HEADER, /* nest - _A_HEADER_* */ + ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER, /* nest - *_TS_HWTSTAMP_PROVIDER_*= */ + ETHTOOL_A_TSCONFIG_TX_TYPES, /* bitset */ + ETHTOOL_A_TSCONFIG_RX_FILTERS, /* bitset */ + ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS, /* u32 */ + + /* add new constants above here */ + __ETHTOOL_A_TSCONFIG_CNT, + ETHTOOL_A_TSCONFIG_MAX =3D (__ETHTOOL_A_TSCONFIG_CNT - 1) +}; + /* PHC VCLOCKS */ =20 enum { diff --git a/net/ethtool/Makefile b/net/ethtool/Makefile index 9b540644ba31..a1490c4afe6b 100644 --- a/net/ethtool/Makefile +++ b/net/ethtool/Makefile @@ -9,4 +9,4 @@ ethtool_nl-y :=3D netlink.o bitset.o strset.o linkinfo.o li= nkmodes.o rss.o \ channels.o coalesce.o pause.o eee.o tsinfo.o cabletest.o \ tunnels.o fec.o eeprom.o stats.o phc_vclocks.o mm.o \ module.o cmis_fw_update.o cmis_cdb.o pse-pd.o plca.o mm.o \ - phy.o + phy.o tsconfig.o diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c index 6ae1d91f36e7..c3c6a9384e95 100644 --- a/net/ethtool/netlink.c +++ b/net/ethtool/netlink.c @@ -394,6 +394,8 @@ ethnl_default_requests[__ETHTOOL_MSG_USER_CNT] =3D { [ETHTOOL_MSG_PLCA_GET_STATUS] =3D ðnl_plca_status_request_ops, [ETHTOOL_MSG_MM_GET] =3D ðnl_mm_request_ops, [ETHTOOL_MSG_MM_SET] =3D ðnl_mm_request_ops, + [ETHTOOL_MSG_TSCONFIG_GET] =3D ðnl_tsconfig_request_ops, + [ETHTOOL_MSG_TSCONFIG_SET] =3D ðnl_tsconfig_request_ops, }; =20 static struct ethnl_dump_ctx *ethnl_dump_context(struct netlink_callback *= cb) @@ -723,6 +725,7 @@ ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = =3D { [ETHTOOL_MSG_MODULE_NTF] =3D ðnl_module_request_ops, [ETHTOOL_MSG_PLCA_NTF] =3D ðnl_plca_cfg_request_ops, [ETHTOOL_MSG_MM_NTF] =3D ðnl_mm_request_ops, + [ETHTOOL_MSG_TSCONFIG_NTF] =3D ðnl_tsconfig_request_ops, }; =20 /* default notification handler */ @@ -821,6 +824,7 @@ static const ethnl_notify_handler_t ethnl_notify_handle= rs[] =3D { [ETHTOOL_MSG_MODULE_NTF] =3D ethnl_default_notify, [ETHTOOL_MSG_PLCA_NTF] =3D ethnl_default_notify, [ETHTOOL_MSG_MM_NTF] =3D ethnl_default_notify, + [ETHTOOL_MSG_TSCONFIG_NTF] =3D ethnl_default_notify, }; =20 void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *= data) @@ -1243,6 +1247,22 @@ static const struct genl_ops ethtool_genl_ops[] =3D { .policy =3D ethnl_phy_get_policy, .maxattr =3D ARRAY_SIZE(ethnl_phy_get_policy) - 1, }, + { + .cmd =3D ETHTOOL_MSG_TSCONFIG_GET, + .doit =3D ethnl_default_doit, + .start =3D ethnl_default_start, + .dumpit =3D ethnl_default_dumpit, + .done =3D ethnl_default_done, + .policy =3D ethnl_tsconfig_get_policy, + .maxattr =3D ARRAY_SIZE(ethnl_tsconfig_get_policy) - 1, + }, + { + .cmd =3D ETHTOOL_MSG_TSCONFIG_SET, + .flags =3D GENL_UNS_ADMIN_PERM, + .doit =3D ethnl_default_set_doit, + .policy =3D ethnl_tsconfig_set_policy, + .maxattr =3D ARRAY_SIZE(ethnl_tsconfig_set_policy) - 1, + }, }; =20 static const struct genl_multicast_group ethtool_nl_mcgrps[] =3D { diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h index 960cda13e4fc..0a09298fff92 100644 --- a/net/ethtool/netlink.h +++ b/net/ethtool/netlink.h @@ -435,6 +435,7 @@ extern const struct ethnl_request_ops ethnl_plca_cfg_re= quest_ops; extern const struct ethnl_request_ops ethnl_plca_status_request_ops; extern const struct ethnl_request_ops ethnl_mm_request_ops; extern const struct ethnl_request_ops ethnl_phy_request_ops; +extern const struct ethnl_request_ops ethnl_tsconfig_request_ops; =20 extern const struct nla_policy ethnl_header_policy[ETHTOOL_A_HEADER_FLAGS = + 1]; extern const struct nla_policy ethnl_header_policy_stats[ETHTOOL_A_HEADER_= FLAGS + 1]; @@ -485,6 +486,8 @@ extern const struct nla_policy ethnl_mm_get_policy[ETHT= OOL_A_MM_HEADER + 1]; extern const struct nla_policy ethnl_mm_set_policy[ETHTOOL_A_MM_MAX + 1]; extern const struct nla_policy ethnl_module_fw_flash_act_policy[ETHTOOL_A_= MODULE_FW_FLASH_PASSWORD + 1]; extern const struct nla_policy ethnl_phy_get_policy[ETHTOOL_A_PHY_HEADER += 1]; +extern const struct nla_policy ethnl_tsconfig_get_policy[ETHTOOL_A_TSCONFI= G_HEADER + 1]; +extern const struct nla_policy ethnl_tsconfig_set_policy[ETHTOOL_A_TSCONFI= G_MAX + 1]; =20 int ethnl_set_features(struct sk_buff *skb, struct genl_info *info); int ethnl_act_cable_test(struct sk_buff *skb, struct genl_info *info); diff --git a/net/ethtool/tsconfig.c b/net/ethtool/tsconfig.c new file mode 100644 index 000000000000..f9d915926a96 --- /dev/null +++ b/net/ethtool/tsconfig.c @@ -0,0 +1,406 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include +#include + +#include "netlink.h" +#include "common.h" +#include "bitset.h" +#include "../core/dev.h" +#include "ts.h" + +struct tsconfig_req_info { + struct ethnl_req_info base; +}; + +struct tsconfig_reply_data { + struct ethnl_reply_data base; + struct hwtst_provider hwtst; + struct { + u32 tx_type; + u32 rx_filter; + u32 flags; + } hwtst_config; +}; + +#define TSCONFIG_REPDATA(__reply_base) \ + container_of(__reply_base, struct tsconfig_reply_data, base) + +const struct nla_policy ethnl_tsconfig_get_policy[ETHTOOL_A_TSCONFIG_HEADE= R + 1] =3D { + [ETHTOOL_A_TSCONFIG_HEADER] =3D + NLA_POLICY_NESTED(ethnl_header_policy), +}; + +static int tsconfig_prepare_data(const struct ethnl_req_info *req_base, + struct ethnl_reply_data *reply_base, + const struct genl_info *info) +{ + struct tsconfig_reply_data *data =3D TSCONFIG_REPDATA(reply_base); + struct hwtstamp_provider *hwtstamp =3D NULL; + struct net_device *dev =3D reply_base->dev; + struct kernel_hwtstamp_config cfg =3D {}; + int ret; + + if (!dev->netdev_ops->ndo_hwtstamp_get) + return -EOPNOTSUPP; + + ret =3D ethnl_ops_begin(dev); + if (ret < 0) + return ret; + + ret =3D dev_get_hwtstamp_phylib(dev, &cfg); + if (ret) + goto out; + + data->hwtst_config.tx_type =3D BIT(cfg.tx_type); + data->hwtst_config.rx_filter =3D BIT(cfg.rx_filter); + data->hwtst_config.flags =3D BIT(cfg.flags); + + data->hwtst.index =3D -1; + hwtstamp =3D rtnl_dereference(dev->hwtstamp); + if (hwtstamp) { + data->hwtst.index =3D ptp_clock_index(hwtstamp->ptp); + data->hwtst.qualifier =3D hwtstamp->qualifier; + } + +out: + ethnl_ops_complete(dev); + return ret; +} + +static int tsconfig_reply_size(const struct ethnl_req_info *req_base, + const struct ethnl_reply_data *reply_base) +{ + const struct tsconfig_reply_data *data =3D TSCONFIG_REPDATA(reply_base); + bool compact =3D req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; + int len =3D 0; + int ret; + + BUILD_BUG_ON(__HWTSTAMP_TX_CNT > 32); + BUILD_BUG_ON(__HWTSTAMP_FILTER_CNT > 32); + + if (data->hwtst_config.flags) + /* _TSCONFIG_HWTSTAMP_FLAGS */ + len +=3D nla_total_size(sizeof(u32)); + + if (data->hwtst_config.tx_type) { + ret =3D ethnl_bitset32_size(&data->hwtst_config.tx_type, + NULL, __HWTSTAMP_TX_CNT, + ts_tx_type_names, compact); + if (ret < 0) + return ret; + len +=3D ret; /* _TSCONFIG_TX_TYPES */ + } + if (data->hwtst_config.rx_filter) { + ret =3D ethnl_bitset32_size(&data->hwtst_config.rx_filter, + NULL, __HWTSTAMP_FILTER_CNT, + ts_rx_filter_names, compact); + if (ret < 0) + return ret; + len +=3D ret; /* _TSCONFIG_RX_FILTERS */ + } + + if (data->hwtst.index >=3D 0) + /* _TSCONFIG_HWTSTAMP_PROVIDER */ + len +=3D nla_total_size(0) + + 2 * nla_total_size(sizeof(u32)); + + return len; +} + +static int tsconfig_fill_reply(struct sk_buff *skb, + const struct ethnl_req_info *req_base, + const struct ethnl_reply_data *reply_base) +{ + const struct tsconfig_reply_data *data =3D TSCONFIG_REPDATA(reply_base); + bool compact =3D req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; + int ret; + + if (data->hwtst_config.flags) { + ret =3D nla_put_u32(skb, ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS, + data->hwtst_config.flags); + if (ret < 0) + return ret; + } + + if (data->hwtst_config.tx_type) { + ret =3D ethnl_put_bitset32(skb, ETHTOOL_A_TSCONFIG_TX_TYPES, + &data->hwtst_config.tx_type, NULL, + __HWTSTAMP_TX_CNT, + ts_tx_type_names, compact); + if (ret < 0) + return ret; + } + + if (data->hwtst_config.rx_filter) { + ret =3D ethnl_put_bitset32(skb, ETHTOOL_A_TSCONFIG_RX_FILTERS, + &data->hwtst_config.rx_filter, + NULL, __HWTSTAMP_FILTER_CNT, + ts_rx_filter_names, compact); + if (ret < 0) + return ret; + } + + if (data->hwtst.index >=3D 0) { + struct nlattr *nest; + + nest =3D nla_nest_start(skb, ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER); + if (!nest) + return -EMSGSIZE; + + if (nla_put_u32(skb, ETHTOOL_A_TS_HWTSTAMP_PROVIDER_INDEX, + data->hwtst.index) || + nla_put_u32(skb, + ETHTOOL_A_TS_HWTSTAMP_PROVIDER_QUALIFIER, + data->hwtst.qualifier)) { + nla_nest_cancel(skb, nest); + return -EMSGSIZE; + } + + nla_nest_end(skb, nest); + } + return 0; +} + +/* TSCONFIG_SET */ +const struct nla_policy ethnl_tsconfig_set_policy[ETHTOOL_A_TSCONFIG_MAX += 1] =3D { + [ETHTOOL_A_TSCONFIG_HEADER] =3D NLA_POLICY_NESTED(ethnl_header_policy), + [ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER] =3D { .type =3D NLA_NESTED }, + [ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS] =3D { .type =3D NLA_U32 }, + [ETHTOOL_A_TSCONFIG_RX_FILTERS] =3D { .type =3D NLA_NESTED }, + [ETHTOOL_A_TSCONFIG_TX_TYPES] =3D { .type =3D NLA_NESTED }, +}; + +static int tsconfig_send_reply(struct net_device *dev, struct genl_info *i= nfo) +{ + struct tsconfig_reply_data *reply_data; + struct tsconfig_req_info *req_info; + struct sk_buff *rskb; + void *reply_payload; + int reply_len =3D 0; + int ret; + + req_info =3D kzalloc(sizeof(*req_info), GFP_KERNEL); + if (!req_info) + return -ENOMEM; + reply_data =3D kmalloc(sizeof(*reply_data), GFP_KERNEL); + if (!reply_data) { + kfree(req_info); + return -ENOMEM; + } + + ASSERT_RTNL(); + reply_data->base.dev =3D dev; + ret =3D tsconfig_prepare_data(&req_info->base, &reply_data->base, info); + if (ret < 0) + goto err_cleanup; + + ret =3D tsconfig_reply_size(&req_info->base, &reply_data->base); + if (ret < 0) + goto err_cleanup; + + reply_len =3D ret + ethnl_reply_header_size(); + rskb =3D ethnl_reply_init(reply_len, dev, ETHTOOL_MSG_TSCONFIG_SET_REPLY, + ETHTOOL_A_TSCONFIG_HEADER, info, &reply_payload); + if (!rskb) + goto err_cleanup; + + ret =3D tsconfig_fill_reply(rskb, &req_info->base, &reply_data->base); + if (ret < 0) + goto err_cleanup; + + genlmsg_end(rskb, reply_payload); + ret =3D genlmsg_reply(rskb, info); + +err_cleanup: + kfree(reply_data); + kfree(req_info); + return ret; +} + +static int ethnl_set_tsconfig_validate(struct ethnl_req_info *req_base, + struct genl_info *info) +{ + const struct net_device_ops *ops =3D req_base->dev->netdev_ops; + + if (!ops->ndo_hwtstamp_set || !ops->ndo_hwtstamp_get) + return -EOPNOTSUPP; + + return 1; +} + +static int ethnl_set_tsconfig(struct ethnl_req_info *req_base, + struct genl_info *info) +{ + struct kernel_hwtstamp_config hwtst_config =3D {0}, _hwtst_config =3D {0}; + unsigned long mask =3D 0, req_rx_filter, req_tx_type; + struct hwtstamp_provider *hwtstamp =3D NULL; + struct net_device *dev =3D req_base->dev; + struct nlattr **tb =3D info->attrs; + bool mod =3D false; + int ret; + + BUILD_BUG_ON(__HWTSTAMP_TX_CNT > 32); + BUILD_BUG_ON(__HWTSTAMP_FILTER_CNT > 32); + + if (!netif_device_present(dev)) + return -ENODEV; + + if (tb[ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER]) { + struct hwtst_provider __hwtst =3D {.index =3D -1}; + struct hwtstamp_provider *__hwtstamp; + + __hwtstamp =3D rtnl_dereference(dev->hwtstamp); + if (__hwtstamp) { + __hwtst.index =3D ptp_clock_index(__hwtstamp->ptp); + __hwtst.qualifier =3D __hwtstamp->qualifier; + } + + ret =3D ts_parse_hwtst_provider(tb[ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER], + &__hwtst, info->extack, + &mod); + if (ret < 0) + return ret; + + if (mod) { + hwtstamp =3D kzalloc(sizeof(*hwtstamp), GFP_KERNEL); + if (!hwtstamp) + return -ENOMEM; + + hwtstamp->ptp =3D ptp_clock_get_by_index(&dev->dev, + __hwtst.index); + if (!hwtstamp->ptp) { + NL_SET_ERR_MSG_ATTR(info->extack, + tb[ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER], + "no phc at such index"); + ret =3D -ENODEV; + goto err_free_hwtstamp; + } + hwtstamp->qualifier =3D __hwtst.qualifier; + hwtstamp->dev =3D &dev->dev; + + /* Does the hwtstamp supported in the netdev topology */ + if (!netdev_support_hwtstamp(dev, hwtstamp)) { + NL_SET_ERR_MSG_ATTR(info->extack, + tb[ETHTOOL_A_TSCONFIG_HWTSTAMP_PROVIDER], + "phc not in this net device topology"); + ret =3D -ENODEV; + goto err_clock_put; + } + } + } + + /* Get the hwtstamp config from netlink */ + if (tb[ETHTOOL_A_TSCONFIG_TX_TYPES]) { + ret =3D ethnl_parse_bitset(&req_tx_type, &mask, + __HWTSTAMP_TX_CNT, + tb[ETHTOOL_A_TSCONFIG_TX_TYPES], + ts_tx_type_names, info->extack); + if (ret < 0) + goto err_clock_put; + + /* Select only one tx type at a time */ + if (ffs(req_tx_type) !=3D fls(req_tx_type)) { + ret =3D -EINVAL; + goto err_clock_put; + } + + hwtst_config.tx_type =3D ffs(req_tx_type) - 1; + } + if (tb[ETHTOOL_A_TSCONFIG_RX_FILTERS]) { + ret =3D ethnl_parse_bitset(&req_rx_filter, &mask, + __HWTSTAMP_FILTER_CNT, + tb[ETHTOOL_A_TSCONFIG_RX_FILTERS], + ts_rx_filter_names, info->extack); + if (ret < 0) + goto err_clock_put; + + /* Select only one rx filter at a time */ + if (ffs(req_rx_filter) !=3D fls(req_rx_filter)) { + ret =3D -EINVAL; + goto err_clock_put; + } + + hwtst_config.rx_filter =3D ffs(req_rx_filter) - 1; + } + if (tb[ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS]) { + ret =3D nla_get_u32(tb[ETHTOOL_A_TSCONFIG_HWTSTAMP_FLAGS]); + if (ret < 0) + goto err_clock_put; + hwtst_config.flags =3D ret; + } + + ret =3D net_hwtstamp_validate(&hwtst_config); + if (ret) + goto err_clock_put; + + if (mod) { + struct kernel_hwtstamp_config zero_config =3D {0}; + struct hwtstamp_provider *__hwtstamp; + + /* Disable current time stamping if we try to enable + * another one + */ + ret =3D dev_set_hwtstamp_phylib(dev, &zero_config, info->extack); + if (ret < 0) + goto err_clock_put; + + /* Change the selected hwtstamp source */ + __hwtstamp =3D rcu_replace_pointer_rtnl(dev->hwtstamp, hwtstamp); + if (__hwtstamp) + call_rcu(&__hwtstamp->rcu_head, + remove_hwtstamp_provider); + } else { + /* Get current hwtstamp config if we are not changing the + * hwtstamp source + */ + ret =3D dev_get_hwtstamp_phylib(dev, &_hwtst_config); + if (ret < 0 && ret !=3D -EOPNOTSUPP) + goto err_clock_put; + } + + if (memcmp(&hwtst_config, &_hwtst_config, sizeof(hwtst_config))) { + ret =3D dev_set_hwtstamp_phylib(dev, &hwtst_config, + info->extack); + if (ret < 0) + return ret; + + ret =3D tsconfig_send_reply(dev, info); + if (ret && ret !=3D -EOPNOTSUPP) { + NL_SET_ERR_MSG(info->extack, + "error while reading the new configuration set"); + return ret; + } + + return 1; + } + + if (mod) + return 1; + + return 0; + +err_clock_put: + if (hwtstamp) + ptp_clock_put(&dev->dev, hwtstamp->ptp); +err_free_hwtstamp: + kfree(hwtstamp); + + return ret; +} + +const struct ethnl_request_ops ethnl_tsconfig_request_ops =3D { + .request_cmd =3D ETHTOOL_MSG_TSCONFIG_GET, + .reply_cmd =3D ETHTOOL_MSG_TSCONFIG_GET_REPLY, + .hdr_attr =3D ETHTOOL_A_TSCONFIG_HEADER, + .req_info_size =3D sizeof(struct tsconfig_req_info), + .reply_data_size =3D sizeof(struct tsconfig_reply_data), + + .prepare_data =3D tsconfig_prepare_data, + .reply_size =3D tsconfig_reply_size, + .fill_reply =3D tsconfig_fill_reply, + + .set_validate =3D ethnl_set_tsconfig_validate, + .set =3D ethnl_set_tsconfig, + .set_ntf_cmd =3D ETHTOOL_MSG_TSCONFIG_NTF, +}; 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bh=U981dne136mJZRxylVkDHEeRlMRiiF/+nXZbj0TIeeA=; b=hDxh8RImEVnV3cQWPJGzq0FhOiwarKGOfSybqucEUAJ8FfcAWWvB0n7kBTNT7iSrtY/bsi 6VwB/f1IkYX2RGqUPrllSxS8MdJBR+HT3B+2Qu50zpSIWmrCthhleZQVMl3SfNrPtTpQmR lnUD57UQZQvmjoupYqvYVvytCQtpp0YWlLcrSwQbWtxn+tBzO8FYEwHcEvKTOzQ9jEIagC veLxceP0IxYtnRKCW66rg9BTlvedUbtCQhpAKIB/FVPfATcp0lcoEMdKDQlD3VVqiMRlre kJX9jDdBFg8ibXI2632rpM7IcJPg4asmyD+IwI3k9fdenwpCj+saeQLxZd6pCg== From: Kory Maincent Date: Wed, 23 Oct 2024 17:49:20 +0200 Subject: [PATCH net-next v18 10/10] netlink: specs: Enhance tsinfo netlink attributes and add a tsconfig set command Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241023-feature_ptp_netnext-v18-10-ed948f3b6887@bootlin.com> References: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> In-Reply-To: <20241023-feature_ptp_netnext-v18-0-ed948f3b6887@bootlin.com> To: Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Vladimir Oltean , donald.hunter@gmail.com, danieller@nvidia.com, ecree.xilinx@gmail.com, Andrew Lunn Cc: Thomas Petazzoni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier , Rahul Rameshbabu , Willem de Bruijn , Shannon Nelson , Alexandra Winter , Kory Maincent , Jacob Keller X-Mailer: b4 0.14.1 X-GND-Sasl: kory.maincent@bootlin.com Add new attributed to tsinfo allowing to get the tsinfo from a phc provider (composed by a phc index and a phc qualifier) on a netdevice's link. Add simultaneously a tsconfig command to be able to get and set hwtstamp configuration for a specified phc provider. Here is few examples: ./ynl/cli.py --spec netlink/specs/ethtool.yaml --no-schema --dump tsinfo-get --json '{"header":{"dev-name":"eth0"}}' [{'header': {'dev-index': 3, 'dev-name': 'eth0'}, 'hwtst-provider': {'index': 0, 'qualifier': 0}, 'phc-index': 0, 'rx-filters': {'bits': {'bit': [{'index': 0, 'name': 'none'}, {'index': 2, 'name': 'some'}]}, 'nomask': True, 'size': 16}, 'timestamping': {'bits': {'bit': [{'index': 0, 'name': 'hardware-transmit= '}, {'index': 2, 'name': 'hardware-receive'= }, {'index': 6, 'name': 'hardware-raw-clock'}]}, 'nomask': True, 'size': 17}, 'tx-types': {'bits': {'bit': [{'index': 0, 'name': 'off'}, {'index': 1, 'name': 'on'}]}, 'nomask': True, 'size': 4}}, {'header': {'dev-index': 3, 'dev-name': 'eth0'}, 'hwtst-provider': {'index': 2, 'qualifier': 0}, 'phc-index': 2, 'rx-filters': {'bits': {'bit': [{'index': 0, 'name': 'none'}, {'index': 1, 'name': 'all'}]}, 'nomask': True, 'size': 16}, 'timestamping': {'bits': {'bit': [{'index': 0, 'name': 'hardware-transmit= '}, {'index': 1, 'name': 'software-transmit= '}, {'index': 2, 'name': 'hardware-receive'= }, {'index': 3, 'name': 'software-receive'= }, {'index': 4, 'name': 'software-system-clock'}, {'index': 6, 'name': 'hardware-raw-clock'}]}, 'nomask': True, 'size': 17}, 'tx-types': {'bits': {'bit': [{'index': 0, 'name': 'off'}, {'index': 1, 'name': 'on'}, {'index': 2, 'name': 'onestep-sync'}]}, 'nomask': True, 'size': 4}}] ./ynl/cli.py --spec netlink/specs/ethtool.yaml --no-schema --do tsinfo-get --json '{"header":{"dev-name":"eth0"}, "hwtst-provider":{"index":0, "qualifier":0 } }' {'header': {'dev-index': 3, 'dev-name': 'eth0'}, 'hwtst-provider': {'index': 0, 'qualifier': 0}, 'phc-index': 0, 'rx-filters': {'bits': {'bit': [{'index': 0, 'name': 'none'}, {'index': 2, 'name': 'some'}]}, 'nomask': True, 'size': 16}, 'timestamping': {'bits': {'bit': [{'index': 0, 'name': 'hardware-transmit'= }, {'index': 2, 'name': 'hardware-receive'}, {'index': 6, 'name': 'hardware-raw-clock= '}]}, 'nomask': True, 'size': 17}, 'tx-types': {'bits': {'bit': [{'index': 0, 'name': 'off'}, {'index': 1, 'name': 'on'}]}, 'nomask': True, 'size': 4}} ./ynl/cli.py --spec netlink/specs/ethtool.yaml --no-schema --do tsinfo-set --json '{"header":{"dev-name":"eth0"}, "hwtst-provider":{"index":2, "qualifier":0}}' None ./ynl/cli.py --spec netlink/specs/ethtool.yaml --no-schema --do tsconfig-get --json '{"header":{"dev-name":"eth0"}}' {'header': {'dev-index': 3, 'dev-name': 'eth0'}, 'hwtstamp-flags': 1, 'hwtstamp-provider': {'index': 1, 'qualifier': 0}, 'rx-filters': {'bits': {'bit': [{'index': 12, 'name': 'ptpv2-event'}]}, 'nomask': True, 'size': 16}, 'tx-types': {'bits': {'bit': [{'index': 1, 'name': 'on'}]}, 'nomask': True, 'size': 4}} ./ynl/cli.py --spec netlink/specs/ethtool.yaml --no-schema --do tsconfig-s= et --json '{"header":{"dev-name":"eth0"}, "hwtstamp-provider":{"index":1, "qualifier":0 }, "rx-filters":{"bits": {"bit": {"name":"ptpv2-l4-event"}}, "nomask": 1}, "tx-types":{"bits": {"bit": {"name":"on"}}, "nomask": 1}}' {'header': {'dev-index': 3, 'dev-name': 'eth0'}, 'hwtstamp-flags': 1, 'hwtstamp-provider': {'index': 1, 'qualifier': 0}, 'rx-filters': {'bits': {'bit': [{'index': 12, 'name': 'ptpv2-event'}]}, 'nomask': True, 'size': 16}, 'tx-types': {'bits': {'bit': [{'index': 1, 'name': 'on'}]}, 'nomask': True, 'size': 4}} Reviewed-by: Jacob Keller Signed-off-by: Kory Maincent --- Changes in v8: - New patch Changes in v10: - Add ghwtstamp attributes - Add tsinfo ntf command Changes in v11: - Add examples in the commit message. Changes in v13: - Replace shorter name by real name. - Fix an issue reported by "make -C tools/net/ynl" on the namings. Changes in v16: - Move to tsconfig command to get and set hwtstamp configuration. Changes in v18: - Add a tsconfig-set reply command description --- Documentation/netlink/specs/ethtool.yaml | 70 ++++++++++++++++++++++++++++= ++++ 1 file changed, 70 insertions(+) diff --git a/Documentation/netlink/specs/ethtool.yaml b/Documentation/netli= nk/specs/ethtool.yaml index 93369f0eb816..8bd04ff89122 100644 --- a/Documentation/netlink/specs/ethtool.yaml +++ b/Documentation/netlink/specs/ethtool.yaml @@ -637,6 +637,15 @@ attribute-sets: - name: tx-err type: uint + - + name: ts-hwtstamp-provider + attributes: + - + name: index + type: u32 + - + name: qualifier + type: u32 - name: tsinfo attributes: @@ -663,6 +672,10 @@ attribute-sets: name: stats type: nest nested-attributes: ts-stat + - + name: hwtstamp-provider + type: nest + nested-attributes: ts-hwtstamp-provider - name: cable-result attributes: @@ -1137,6 +1150,28 @@ attribute-sets: - name: downstream-sfp-name type: string + - + name: tsconfig + attributes: + - + name: header + type: nest + nested-attributes: header + - + name: hwtstamp-provider + type: nest + nested-attributes: ts-hwtstamp-provider + - + name: tx-types + type: nest + nested-attributes: bitset + - + name: rx-filters + type: nest + nested-attributes: bitset + - + name: hwtstamp-flags + type: u32 =20 operations: enum-model: directional @@ -1578,6 +1613,7 @@ operations: request: attributes: - header + - hwtstamp-provider reply: attributes: - header @@ -1586,6 +1622,7 @@ operations: - rx-filters - phc-index - stats + - hwtstamp-provider dump: *tsinfo-get-op - name: cable-test-act @@ -1960,3 +1997,36 @@ operations: name: phy-ntf doc: Notification for change in PHY devices. notify: phy-get + - + name: tsconfig-get + doc: Get hwtstamp config. + + attribute-set: tsconfig + + do: &tsconfig-get-op + request: + attributes: + - header + reply: + attributes: &tsconfig + - header + - hwtstamp-provider + - tx-types + - rx-filters + - hwtstamp-flags + dump: *tsconfig-get-op + - + name: tsconfig-set + doc: Set hwtstamp config. + + attribute-set: tsconfig + + do: + request: + attributes: *tsconfig + reply: + attributes: *tsconfig + - + name: tsconfig-ntf + doc: Notification for change in tsconfig configuration. + notify: tsconfig-get --=20 2.34.1