From patchwork Wed Feb 5 13:40:46 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: 13961087 X-Patchwork-Delegate: kuba@kernel.org Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (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 44D0213B5AE for ; Wed, 5 Feb 2025 13:41:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738762873; cv=none; b=Y0V2PLC51qQFaHBw0mJVtE4DDHrIA75Fv0pPpK09h+amMQrIBf3ZTy5SgtG673GTHhuf68oKwrGB4pJoTEZToU5zGWYmOMsEiMIgmyf8Cu/VykQgOxtbFXZvpmeiZTg1Zelk7v/Wd5mjOguAQkqy+XOppqsXxA4myQuAGHbjGzw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738762873; c=relaxed/simple; bh=7yPLfwNLd43BMeIdLnTpuCneD0xrtTlhts0h5+Z6bwc=; h=In-Reply-To:References:From:To:Cc:Subject:MIME-Version: Content-Disposition:Content-Type:Message-Id:Date; b=ZsWuhDNHUShQaNPRANknDpxWhZ0Sj9MpaHUXbPNrQlo7fhqlfE4YO+U6sjSFlToSfXo6s8Jcd/FK7gPjoSX/Yv3ba+EmapKzEybBSL8jma4PUkiDM0xO4R5idSAZ6Z/igrFwwliB7jROCI2iP4Yct0jlGfojIPxlxypB2hb3qV4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=PrVUKlTh; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="PrVUKlTh" 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=nuxbhYeGkmQ/kY02XosE0uJ5RCIvgT8RCCwmCSGpJ1k=; b=PrVUKlThp5mAip7dbjQg9PkpN4 DUNhG39vB1ZnodRy8kQsup5o40yHY2IbA/qw2CH32YHZIrVB1wxeIypYcDYrYBpV+zaQq8F4bORT+ QxWkjkT9iPRhRxqv3saUsX5tn7WihOcv5Y6KG5rL3q3Mg/qWrcJ3kd+ZqkGtgrwOQdsEVY6bfqFKP s2cVGDFiB4A27Pv9QYqiW62jH0BFomzUVkPQyB9cBeUNwLV8Ddn11r9LTWtU++mlj3VbTAuFFUTGz hW5leUCmYwu+41U5igA3emAIPVKY9IsxtFivb5NhORwPsieoLTP5WYlISyg0ZNy5tzk+uBSsb55aE 4J/I0AHA==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:46576 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 1tffeM-0007Cx-0j; Wed, 05 Feb 2025 13:41:06 +0000 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1tffe2-003ZIg-Mx; Wed, 05 Feb 2025 13:40:46 +0000 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn , Heiner Kallweit Cc: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH net-next 13/14] net: stmmac: use stmmac_set_lpi_mode() Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Message-Id: Sender: Russell King Date: Wed, 05 Feb 2025 13:40:46 +0000 X-Patchwork-Delegate: kuba@kernel.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 921c4badd5fb..a2ea883b50ab 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); }