From patchwork Tue Nov 12 07:24:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Choong Yong Liang X-Patchwork-Id: 13871787 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EF2D7D41D61 for ; Tue, 12 Nov 2024 07:29:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=6r8hH0FPdgEHTCt1cWrHRridoAt19MyEN1wa7rJu57g=; b=2UnP3e6hcI80QzIe2kjMslyi1L dbuUaGbO5UeN2N5giXWE01NZoj59GdA2F7BwPxONloBKeQ0iNlmZgMQ7WCJ9JxkiM7nOEFS4tBvkX 9iI1m5zSJeyTpQkmcF+hTnR12oaSy2Upx5IM4nV2dRP1t11ADXvmCLs7aORG2CGdngCMUNMOkQGU0 hTUsLumMt3vCgbSSPo/AY4rRtrOqmYwugSgFEBaeYWGP169HGaBEMt0xRNB7D45lyH/LsqQvg9wgh BjBbzcasswXRnn2qUyGlJ5bNNlC4TOvnXOemX2O2Bx1i3O4sgymZMbkb9pKdmZDwRd2bqN+eWeZU4 /LKC7x5A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tAlKi-00000002TDU-1bjX; Tue, 12 Nov 2024 07:29:04 +0000 Received: from mgamail.intel.com ([198.175.65.18]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tAlHA-00000002Sfc-0GX2 for linux-arm-kernel@lists.infradead.org; Tue, 12 Nov 2024 07:25:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1731396324; x=1762932324; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=56zf3pdeCoar/wx2RuHyLAS0nUbRU/jxT75R9EzS8qE=; b=DoXfzsuHeAu9AjYSrFxNFt0J9f1D3SyMFPabkQmK4JgK2MDjp6UJ7G3x AJk1pa7bzfSIg5LlUGMDjAwlijfseWZ0OJJlYr+wZb0/YBT3zk2N40dBe OTdGDJ9Mxv0GdCqZw0BcAAMsq2je4lDZ1qAactzZ15jxf+AL16Q/k4iUh zuN4AS5nsXisg9GZL/pkWCIvQopvsL5MWaT/orwvFRyG40PxVtTr5meEw gp1CUvXiu89B0OTmy3OOIYjU1IvSByKyfEtOfAvsqxf6LsLdSSbHczXxV f/xPrnE7fghmhXeR/qoN8Atv3gNAtlFStAGz8+pDrNRkLYJ7nQhRLKbRA w==; X-CSE-ConnectionGUID: 0Ld2RgPbQAOm6rB/obGWmQ== X-CSE-MsgGUID: Pi0+N19kQGW0J6VsHH1rJQ== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="31387802" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="31387802" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Nov 2024 23:25:23 -0800 X-CSE-ConnectionGUID: 91fhFG1uRTKNRrYsEhwh5Q== X-CSE-MsgGUID: ig6CV1xeS4qYl8WbXmtpAA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,147,1728975600"; d="scan'208";a="87074232" Received: from unknown (HELO YongLiang-Ubuntu20-iLBPG12.png.intel.com) ([10.88.229.33]) by fmviesa007.fm.intel.com with ESMTP; 11 Nov 2024 23:25:20 -0800 From: Choong Yong Liang To: Andrew Lunn , Heiner Kallweit , Russell King , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexandre Torgue , Jose Abreu , Maxime Coquelin Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH net v1 1/2] net: phy: Introduce phy_update_eee() to update eee_cfg values Date: Tue, 12 Nov 2024 15:24:46 +0800 Message-Id: <20241112072447.3238892-2-yong.liang.choong@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241112072447.3238892-1-yong.liang.choong@linux.intel.com> References: <20241112072447.3238892-1-yong.liang.choong@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241111_232524_166559_A32303ED X-CRM114-Status: GOOD ( 13.61 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The commit fe0d4fd9285e ("net: phy: Keep track of EEE configuration") introduced eee_cfg, which is used to check the existing settings against the requested changes. When the 'ethtool --show-eee' command is issued, it reads the values from eee_cfg. However, the 'show-eee' command does not show the correct result after system boot-up, link up, and link down. For system boot-up, the commit 49168d1980e2 ("net: phy: Add phy_support_eee() indicating MAC support EEE") introduced phy_support_eee to set eee_cfg as the default value. However, the values set were not always correct, as after autonegotiation or speed changes, the selected speed might not be supported by EEE. phy_update_eee() was introduced to update the correct values for eee_cfg during link up and down, ensuring that 'ethtool --show-eee' shows the correct status. Fixes: fe0d4fd9285e ("net: phy: Keep track of EEE configuration") Cc: Signed-off-by: Choong Yong Liang --- drivers/net/phy/phy_device.c | 24 ++++++++++++++++++++++++ include/linux/phy.h | 2 ++ 2 files changed, 26 insertions(+) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 499797646580..94dadf011ca6 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -3016,6 +3016,30 @@ void phy_support_eee(struct phy_device *phydev) } EXPORT_SYMBOL(phy_support_eee); +/** + * phy_update_eee - Update the Energy Efficient Ethernet (EEE) settings + * @phydev: target phy_device struct + * @tx_lpi_enabled: boolean indicating if Low Power Idle (LPI) for + * transmission is enabled. + * @eee_enabled: boolean indicating if Energy Efficient Ethernet (EEE) is + * enabled. + * @tx_lpi_timer: the Low Power Idle (LPI) timer value (in microseconds) for + * transmission. + * + * Description: + * This function updates the Energy Efficient Ethernet (EEE) settings for the + * specified PHY device. It is typically called during link up and down events + * to configure the EEE parameters according to the current link state. + */ +void phy_update_eee(struct phy_device *phydev, bool tx_lpi_enabled, + bool eee_enabled, u32 tx_lpi_timer) +{ + phydev->eee_cfg.tx_lpi_enabled = tx_lpi_enabled; + phydev->eee_cfg.eee_enabled = eee_enabled; + phydev->eee_cfg.tx_lpi_timer = tx_lpi_timer; +} +EXPORT_SYMBOL(phy_update_eee); + /** * phy_support_sym_pause - Enable support of symmetrical pause * @phydev: target phy_device struct diff --git a/include/linux/phy.h b/include/linux/phy.h index a98bc91a0cde..6c300ba47a2d 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -2004,6 +2004,8 @@ void phy_advertise_eee_all(struct phy_device *phydev); void phy_support_sym_pause(struct phy_device *phydev); void phy_support_asym_pause(struct phy_device *phydev); void phy_support_eee(struct phy_device *phydev); +void phy_update_eee(struct phy_device *phydev, bool tx_lpi_enabled, + bool eee_enabled, u32 tx_lpi_timer); void phy_set_sym_pause(struct phy_device *phydev, bool rx, bool tx, bool autoneg); void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);