From patchwork Wed Feb 5 15:11:05 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: 13961401 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 E1219C02194 for ; Wed, 5 Feb 2025 15:39:49 +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=Qzc18F39yPzvat+K0alllCe+hx6K8Z4IAOid0E8Q0yc=; b=cSRVNc5NPCKheTaCasxXdQT9Ur BmZ++LBvtfAZzyF9U+N/amVy/5T1V/XRO2v23NmHiw4YVUmr7BeCMUd1swpGiyYNmTpZ+4bJC9mip o/X2z4J7RoPSObob/visCMKbH27MZo17TlvVhwmi1Uh7N7Ij+w+ztmSWtzrXkz4rf2lC7BDWPlFGb AEpllhF0POBINN36ALkpIn8ijoTauevBbJxrMoOjy26IzUNsrjI2zhRWZK3iUPel77tOFM3nk6523 IB+p/2x2C4sRZiK02sAHOU6ZZ8R/P80a9MyYVI2lXDHu/Q58yzqglBu2ET/HLrHx/kRd13jSGhSwr nVlbSZBw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tfhV5-00000003o0R-1eKf; Wed, 05 Feb 2025 15:39:39 +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 1tfh3r-00000003iVH-1H2Y; Wed, 05 Feb 2025 15:11:32 +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=Qzc18F39yPzvat+K0alllCe+hx6K8Z4IAOid0E8Q0yc=; b=M4G54XpJan6QaSWOMBWzZuEgK6 gwcy7aov4kKXVzj+vaY9GdS9w1NfdHCM7AdsW5XeffBPgSsJDgfdhpM17xVCh2+J3pjX389fZwrgg hZTqNUKZi1BZ2GCahh6zPlSLirdrfJKJlfZjlkqpkapNe7xblFrCO/fSM/g/2wAzNsy3kGqiUhjzI 3iVJsShYxhOAfGnWzTvlioQntJBFgJn/FWzfffe7tNZYxmT20/UXvmY9rhYCcXZxQAlMioVDm86nI onKzrofsd7afL56UeB/VPhkaJbrVrYFQcZcCHUevIWQUI1hW8GdkCO+IeUJZgs3lbahLht+EnnLlF vjjwuaMg==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:33054 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 1tfh3k-0007TD-2H; Wed, 05 Feb 2025 15:11:24 +0000 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1tfh3R-003aRS-3M; Wed, 05 Feb 2025 15:11:05 +0000 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn , Heiner Kallweit Cc: AngeloGioacchino Del Regno , "Chester A. Unal" , Daniel Golle , "David S. Miller" , DENG Qingfang , Eric Dumazet , Jakub Kicinski , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Matthias Brugger , netdev@vger.kernel.org, Paolo Abeni , Sean Wang , Simon Horman , Vladimir Oltean Subject: [PATCH net-next 3/3] net: dsa: mt7530: convert to phylink managed EEE MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Wed, 05 Feb 2025 15:11:05 +0000 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250205_071131_344405_D3E6CB7D X-CRM114-Status: GOOD ( 16.34 ) 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 Fixme: doesn't bit 25 and 26 also need to be set in the PMCR for PMCR_FORCE_EEE100 and PMCR_FORCE_EEE1G to take effect? Signed-off-by: Russell King (Oracle) --- drivers/net/dsa/mt7530.c | 69 ++++++++++++++++++++++++++++------------ 1 file changed, 48 insertions(+), 21 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 1c83af805209..24191c4d5221 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2957,28 +2957,62 @@ static void mt753x_phylink_mac_link_up(struct phylink_config *config, mcr |= PMCR_FORCE_RX_FC_EN; } - if (mode == MLO_AN_PHY && phydev && phy_init_eee(phydev, false) >= 0) { - switch (speed) { - case SPEED_1000: - case SPEED_2500: - mcr |= PMCR_FORCE_EEE1G; - break; - case SPEED_100: - mcr |= PMCR_FORCE_EEE100; - break; - } - } - mt7530_set(priv, MT753X_PMCR_P(dp->index), mcr); } +static void mt753x_phylink_mac_disable_tx_lpi(struct phylink_config *config) +{ + struct dsa_port *dp = dsa_phylink_to_port(config); + struct mt7530_priv *priv = dp->ds->priv; + + mt7530_clear(priv, MT753X_PMCR_P(dp->index), + PMCR_FORCE_EEE1G | PMCR_FORCE_EEE100); +} + +static int mt753x_phylink_mac_enable_tx_lpi(struct phylink_config *config, + u32 timer, bool tx_clock_stop) +{ + struct dsa_port *dp = dsa_phylink_to_port(config); + struct mt7530_priv *priv = dp->ds->priv; + u32 val; + + /* If the timer is zero, then set LPI_MODE_EN, which allows the + * system to enter LPI mode immediately rather than waiting for + * the LPI threshold. + */ + if (!timer) + val = LPI_MODE_EN; + else if (FIELD_FIT(LPI_THRESH_MASK, timer)) + val = FIELD_PREP(LPI_THRESH_MASK, timer); + else + val = LPI_THRESH_MASK; + + mt7530_rmw(priv, MT753X_PMEEECR_P(dp->index), + LPI_THRESH_MASK | LPI_MODE_EN, val); + + mt7530_set(priv, MT753X_PMCR_P(dp->index), + PMCR_FORCE_EEE1G | PMCR_FORCE_EEE100); + + return 0; +} + static void mt753x_phylink_get_caps(struct dsa_switch *ds, int port, struct phylink_config *config) { struct mt7530_priv *priv = ds->priv; + u32 eeecr; config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE; + config->lpi_capabilities = MAC_100FD | MAC_1000FD | MAC_2500FD; + config->lpi_timer_limit_us = FIELD_MAX(LPI_THRESH_MASK); + + eeecr = mt7530_read(priv, MT753X_PMEEECR_P(port)); + /* tx_lpi_timer should be in microseconds. The time units for + * LPI threshold are unspecified. + */ + config->lpi_timer_default = FIELD_GET(LPI_THRESH_MASK, eeecr); + priv->info->mac_port_get_caps(ds, port, config); } @@ -3088,18 +3122,9 @@ mt753x_setup(struct dsa_switch *ds) static int mt753x_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e) { - struct mt7530_priv *priv = ds->priv; - u32 set, mask = LPI_THRESH_MASK | LPI_MODE_EN; - if (e->tx_lpi_timer > 0xFFF) return -EINVAL; - set = LPI_THRESH_SET(e->tx_lpi_timer); - if (!e->tx_lpi_enabled) - /* Force LPI Mode without a delay */ - set |= LPI_MODE_EN; - mt7530_rmw(priv, MT753X_PMEEECR_P(port), mask, set); - return 0; } @@ -3238,6 +3263,8 @@ static const struct phylink_mac_ops mt753x_phylink_mac_ops = { .mac_config = mt753x_phylink_mac_config, .mac_link_down = mt753x_phylink_mac_link_down, .mac_link_up = mt753x_phylink_mac_link_up, + .mac_disable_tx_lpi = mt753x_phylink_mac_disable_tx_lpi, + .mac_enable_tx_lpi = mt753x_phylink_mac_enable_tx_lpi, }; const struct mt753x_info mt753x_table[] = {