From patchwork Tue Jan 28 15:47:51 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King (Oracle)" X-Patchwork-Id: 13952720 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 200E4C02190 for ; Tue, 28 Jan 2025 16:04:59 +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:Date:Message-Id:Content-Type :Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=TiDJSvJNzK27YwKwilomGm2u5RweY/NCsbPGAL9OV2I=; b=4fe+XtCmIIhZvGT7S2uGEQKMZS 3EFnMkxzmIVju6mtQRkkq3831LJH0l0ILV3GoqBERV1EbMXmNmvDMs1aYJKu5yInOwPoD1ZercVc+ fpXR3ey2svD295QLVdn0E/5x67VixkMz6xEShRn6Rkqm3obD9yfMacoHvYxmwiqn2wZLs/cZuFBhI z+rXzH/vwqckfsKx4+atgq69gF+aLsn/Xhfjaywf3ZCiJRAYfrluixGt6hYEfjtDzvTV9/i5+WOJ0 IHdUcLv/h1cy6QhC83JR2lC6dOrccm/s+OZa1Gs5P4wkznUn41HRa2IoEXHED19SS4wwG8GTMcFJl g9nV+y7g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tco4z-00000005G9W-1TY6; Tue, 28 Jan 2025 16:04:45 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tcnp2-00000005CGa-1M9r for linux-arm-kernel@lists.infradead.org; Tue, 28 Jan 2025 15:48:17 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=TiDJSvJNzK27YwKwilomGm2u5RweY/NCsbPGAL9OV2I=; b=X/7G3ku2yXh8QSbbTwmW+wYkcp UPyJnO9Xj1Hkbq82GIq4vdZkqgwOH56Y2+Q4UjSp2EwHuLvfnEvuSf17f9c33TqiHPVCIU01sLn4o HsCyZMCXAE/ovdye2juvZvowFaN8m8BnHMPSfBjtB7DY6EDvV7pzTIWzWzUmIjcGGOj7cGAfQiu0I +y2rHotrK+Ub/8cyRWmb8e7qyVpoTebEg1uwOjiGFQ+uUl6dMC5owdeli8ws1PUThlNDIwgfMgelx jgxBVLqWiGpFU7RYOTBOFd8VDksHUeWhMS8seEw5zT21yETbhxjHfRBtS3a327DI91d5pGS4aYnN6 OXKgEGIA==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:50184 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tcnow-0007WB-2K; Tue, 28 Jan 2025 15:48:10 +0000 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1tcnod-0037HK-Di; Tue, 28 Jan 2025 15:47:51 +0000 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn , Heiner Kallweit Cc: Alexandre Torgue , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, Maxime Coquelin , netdev@vger.kernel.org, Paolo Abeni , Vladimir Oltean , Jiawen Wu Subject: [PATCH RFC net-next 13/22] net: stmmac: use stmmac_set_lpi_mode() MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Tue, 28 Jan 2025 15:47:51 +0000 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250128_074816_362970_3A463E25 X-CRM114-Status: GOOD ( 12.44 ) 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 Use the new stmmac_set_lpi_mode() API to configure the parameters of the desired LPI mode rather than the older methods. Signed-off-by: Russell King (Oracle) --- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 29 ++++++++++--------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index aafd9cee304e..5b47b2ad6b49 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -390,11 +390,6 @@ static inline u32 stmmac_rx_dirty(struct stmmac_priv *priv, u32 queue) return dirty; } -static void stmmac_enable_hw_lpi_timer(struct stmmac_priv *priv) -{ - stmmac_set_eee_lpi_timer(priv, priv->hw, priv->tx_lpi_timer); -} - static bool stmmac_eee_tx_busy(struct stmmac_priv *priv) { u32 tx_cnt = priv->plat->tx_queues_to_use; @@ -431,8 +426,9 @@ static void stmmac_try_to_start_sw_lpi(struct stmmac_priv *priv) /* Check and enter in LPI mode */ if (!priv->tx_path_in_lpi_mode) - stmmac_set_eee_mode(priv, priv->hw, - priv->plat->flags & STMMAC_FLAG_EN_TX_LPI_CLOCKGATING); + stmmac_set_lpi_mode(priv, priv->hw, STMMAC_LPI_FORCED, + priv->plat->flags & STMMAC_FLAG_EN_TX_LPI_CLOCKGATING, + 0); } /** @@ -443,7 +439,7 @@ static void stmmac_try_to_start_sw_lpi(struct stmmac_priv *priv) static void stmmac_stop_sw_lpi(struct stmmac_priv *priv) { del_timer_sync(&priv->eee_ctrl_timer); - stmmac_reset_eee_mode(priv, priv->hw); + stmmac_set_lpi_mode(priv, priv->hw, STMMAC_LPI_DISABLE, false, 0); priv->tx_path_in_lpi_mode = false; } @@ -1046,7 +1042,7 @@ static void stmmac_mac_disable_tx_lpi(struct phylink_config *config) netdev_dbg(priv->dev, "disable EEE\n"); priv->eee_sw_timer_en = false; del_timer_sync(&priv->eee_ctrl_timer); - stmmac_reset_eee_mode(priv, priv->hw); + stmmac_set_lpi_mode(priv, priv->hw, STMMAC_LPI_DISABLE, false, 0); priv->tx_path_in_lpi_mode = false; stmmac_set_eee_timer(priv, priv->hw, 0, STMMAC_DEFAULT_TWT_LS); @@ -1061,6 +1057,7 @@ static int stmmac_mac_enable_tx_lpi(struct phylink_config *config, u32 timer, bool tx_clk_stop) { struct stmmac_priv *priv = netdev_priv(to_net_dev(config->dev)); + int ret; priv->tx_lpi_timer = timer; priv->eee_active = true; @@ -1075,11 +1072,15 @@ static int stmmac_mac_enable_tx_lpi(struct phylink_config *config, u32 timer, xpcs_config_eee(priv->hw->xpcs, priv->plat->mult_fact_100ns, true); - if (priv->plat->has_gmac4 && priv->tx_lpi_timer <= STMMAC_ET_MAX) { - /* Use hardware LPI mode */ - stmmac_enable_hw_lpi_timer(priv); - } else { - /* Use software LPI mode */ + /* Try to cnfigure the hardware timer. */ + ret = stmmac_set_lpi_mode(priv, priv->hw, STMMAC_LPI_TIMER, + priv->plat->flags & STMMAC_FLAG_EN_TX_LPI_CLOCKGATING, + priv->tx_lpi_timer); + + if (ret) { + /* Hardware timer mode not supported, or value out of range. + * Fall back to using software LPI mode + */ priv->eee_sw_timer_en = true; stmmac_restart_sw_lpi_timer(priv); }