From patchwork Tue Jul 5 09:48:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King (Oracle)" X-Patchwork-Id: 12906284 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 4EC72CCA480 for ; Tue, 5 Jul 2022 09:51:44 +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=VeDQ3f9B7pR3qloIC/BpOn9WMCHG9Pe+77zRp0FsYcs=; b=tb4i2MXxMbY8U8fiIMlY2/qlTw S84/icdENsM80XKhdLzlVLFYsO4y5zG5F3p2DK2LUe+jAaf1DxLRlmXQz5fsOkVHPgcVxEr8iYdcf +q2KW//DQum9bm+W5hsbCOlRT2LTSLj304i2eUFYeuE6ymv0UjmKnqwRO0Sg2XrrKporbgtWi90JM KihhTIfVXRdN9wV84dZTWVVE5esBv6kk70YSAGuohWR0zjn5uFpBdD1GNf0Am0uLKHaSZRmExA8Fh eBdKBmpZ34cIO2dEo545qXfcN9gQttUG9U+Jl4pgKFgY+ZalJ4WC1u9vborM666pi9yCsC4sys1B4 UDg085ew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8fDT-00GwKG-0l; Tue, 05 Jul 2022 09:51:35 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8fAQ-00Gu1f-CL; Tue, 05 Jul 2022 09:48:28 +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=VeDQ3f9B7pR3qloIC/BpOn9WMCHG9Pe+77zRp0FsYcs=; b=XT32XUR3NiZcke+Nt3JEezWGsg tkLKGQ/pGttWrvps/f00EGG7AOjkxtGOqmT1VP0UrxygLIT6WNKo5Z21GCjoMqpGCif27L/vP+WAJ 8Qn/5HtDN/mePBCTkrt1TsIlrq701fjyWq8MrrflvQYW4my3uNTr15G1MsRffAcZnSTexwhTA2Taa jxPjdb2QK9I1BxRYoeD/BzlxjGHpC7obPGp2m61FXnqs48cAJQVcEDVJqbXfp5Izjqo89qCNt3JRu 2r1m5mH6rBQrq2e42dteWGpi5iAehQ4cqybxF5cFLfy36zuGxHqGQvS7sg/RLg7I78e+N1oDeT7Lb w5YvKYQw==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:60656 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 4.94.2) (envelope-from ) id 1o8fA9-00014Q-OT; Tue, 05 Jul 2022 10:48:10 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1o8fA7-0059aO-K8; Tue, 05 Jul 2022 10:48:07 +0100 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn , Heiner Kallweit Cc: Alexandre Belloni , "Alvin __ipraga" , Claudiu Manoil , "David S. Miller" , DENG Qingfang , Eric Dumazet , Florian Fainelli , George McCollister , Hauke Mehrtens , Jakub Kicinski , Kurt Kanzenbach , Landen Chao , Linus Walleij , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Matthias Brugger , netdev@vger.kernel.org, Paolo Abeni , Sean Wang , UNGLinuxDriver@microchip.com, Vivien Didelot , Vladimir Oltean , Woojung Huh , Marek =?iso-8859-1?q?Beh=FAn?= Subject: [PATCH RFC net-next 5/5] net: dsa: always use phylink for CPU and DSA ports MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Tue, 05 Jul 2022 10:48:07 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220705_024826_648114_F90477BF X-CRM114-Status: GOOD ( 22.34 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Currently, we only use phylink for CPU and DSA ports if there is a fixed-link specification, or a PHY specified. The reason for this behaviour is that when neither is specified, there was no way for phylink to know the link parameters. Now that we have phylink_set_max_link_speed() (which has become possible through the addition of mac_capabilities) we now have the ability to know the maximum link speed for a specific link, and can use phylink for this case as well. However, we need all DSA drivers to provide mac_capabilities for this to work, and either report the default interface to be used for a port or have filled in supported_interfaces, so that we can select a maximum speed appropriate for the interface mode that hardware may have configured for the port. Any drivers that do not meet these requirements are likely to break. This is especially important with the conversion of DSA drivers to phylink_pcs, as the PCS code only gets called if we are using phylink for the port. Signed-off-by: Russell King (Oracle) Signed-off-by: Vladimir Oltean --- drivers/net/dsa/mv88e6xxx/chip.c | 50 ++++---------------------------- drivers/net/dsa/mv88e6xxx/chip.h | 3 -- drivers/net/dsa/mv88e6xxx/port.c | 32 -------------------- drivers/net/dsa/mv88e6xxx/port.h | 5 ---- net/dsa/port.c | 24 ++++++++------- 5 files changed, 18 insertions(+), 96 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 877407bc09de..7fd89239a7a7 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -3315,9 +3315,8 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port) { struct device_node *phy_handle = NULL; struct dsa_switch *ds = chip->ds; - phy_interface_t mode; struct dsa_port *dp; - int tx_amp, speed; + int tx_amp; int err; u16 reg; @@ -3326,40 +3325,10 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port) dp = dsa_to_port(ds, port); - /* MAC Forcing register: don't force link, speed, duplex or flow control - * state to any particular values on physical ports, but force the CPU - * port and all DSA ports to their maximum bandwidth and full duplex. - */ - if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) { - unsigned long caps = dp->pl_config.mac_capabilities; - - if (chip->info->ops->port_max_speed_mode) - mode = chip->info->ops->port_max_speed_mode(port); - else - mode = PHY_INTERFACE_MODE_NA; - - if (caps & MAC_10000FD) - speed = SPEED_10000; - else if (caps & MAC_5000FD) - speed = SPEED_5000; - else if (caps & MAC_2500FD) - speed = SPEED_2500; - else if (caps & MAC_1000) - speed = SPEED_1000; - else if (caps & MAC_100) - speed = SPEED_100; - else - speed = SPEED_10; - - err = mv88e6xxx_port_setup_mac(chip, port, LINK_FORCED_UP, - speed, DUPLEX_FULL, - PAUSE_OFF, mode); - } else { - err = mv88e6xxx_port_setup_mac(chip, port, LINK_UNFORCED, - SPEED_UNFORCED, DUPLEX_UNFORCED, - PAUSE_ON, - PHY_INTERFACE_MODE_NA); - } + err = mv88e6xxx_port_setup_mac(chip, port, LINK_UNFORCED, + SPEED_UNFORCED, DUPLEX_UNFORCED, + PAUSE_ON, + PHY_INTERFACE_MODE_NA); if (err) return err; @@ -4307,7 +4276,6 @@ static const struct mv88e6xxx_ops mv88e6141_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6341_port_set_speed_duplex, - .port_max_speed_mode = mv88e6341_port_max_speed_mode, .port_tag_remap = mv88e6095_port_tag_remap, .port_set_policy = mv88e6352_port_set_policy, .port_set_frame_mode = mv88e6351_port_set_frame_mode, @@ -4700,7 +4668,6 @@ static const struct mv88e6xxx_ops mv88e6190_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6390_port_set_speed_duplex, - .port_max_speed_mode = mv88e6390_port_max_speed_mode, .port_tag_remap = mv88e6390_port_tag_remap, .port_set_policy = mv88e6352_port_set_policy, .port_set_frame_mode = mv88e6351_port_set_frame_mode, @@ -4763,7 +4730,6 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6390x_port_set_speed_duplex, - .port_max_speed_mode = mv88e6390x_port_max_speed_mode, .port_tag_remap = mv88e6390_port_tag_remap, .port_set_policy = mv88e6352_port_set_policy, .port_set_frame_mode = mv88e6351_port_set_frame_mode, @@ -4826,7 +4792,6 @@ static const struct mv88e6xxx_ops mv88e6191_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6390_port_set_speed_duplex, - .port_max_speed_mode = mv88e6390_port_max_speed_mode, .port_tag_remap = mv88e6390_port_tag_remap, .port_set_frame_mode = mv88e6351_port_set_frame_mode, .port_set_ucast_flood = mv88e6352_port_set_ucast_flood, @@ -4991,7 +4956,6 @@ static const struct mv88e6xxx_ops mv88e6290_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6390_port_set_speed_duplex, - .port_max_speed_mode = mv88e6390_port_max_speed_mode, .port_tag_remap = mv88e6390_port_tag_remap, .port_set_policy = mv88e6352_port_set_policy, .port_set_frame_mode = mv88e6351_port_set_frame_mode, @@ -5142,7 +5106,6 @@ static const struct mv88e6xxx_ops mv88e6341_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6341_port_set_speed_duplex, - .port_max_speed_mode = mv88e6341_port_max_speed_mode, .port_tag_remap = mv88e6095_port_tag_remap, .port_set_policy = mv88e6352_port_set_policy, .port_set_frame_mode = mv88e6351_port_set_frame_mode, @@ -5365,7 +5328,6 @@ static const struct mv88e6xxx_ops mv88e6390_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6390_port_set_speed_duplex, - .port_max_speed_mode = mv88e6390_port_max_speed_mode, .port_tag_remap = mv88e6390_port_tag_remap, .port_set_policy = mv88e6352_port_set_policy, .port_set_frame_mode = mv88e6351_port_set_frame_mode, @@ -5432,7 +5394,6 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6390x_port_set_speed_duplex, - .port_max_speed_mode = mv88e6390x_port_max_speed_mode, .port_tag_remap = mv88e6390_port_tag_remap, .port_set_policy = mv88e6352_port_set_policy, .port_set_frame_mode = mv88e6351_port_set_frame_mode, @@ -5498,7 +5459,6 @@ static const struct mv88e6xxx_ops mv88e6393x_ops = { .port_sync_link = mv88e6xxx_port_sync_link, .port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay, .port_set_speed_duplex = mv88e6393x_port_set_speed_duplex, - .port_max_speed_mode = mv88e6393x_port_max_speed_mode, .port_tag_remap = mv88e6390_port_tag_remap, .port_set_policy = mv88e6393x_port_set_policy, .port_set_frame_mode = mv88e6351_port_set_frame_mode, diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h index 4518c17c1b9b..a3b7cfe3eb23 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.h +++ b/drivers/net/dsa/mv88e6xxx/chip.h @@ -502,9 +502,6 @@ struct mv88e6xxx_ops { int (*port_set_speed_duplex)(struct mv88e6xxx_chip *chip, int port, int speed, int duplex); - /* What interface mode should be used for maximum speed? */ - phy_interface_t (*port_max_speed_mode)(int port); - int (*port_tag_remap)(struct mv88e6xxx_chip *chip, int port); int (*port_set_policy)(struct mv88e6xxx_chip *chip, int port, diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index 90c55f23b7c9..47e21f3c437a 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -333,14 +333,6 @@ int mv88e6341_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, duplex); } -phy_interface_t mv88e6341_port_max_speed_mode(int port) -{ - if (port == 5) - return PHY_INTERFACE_MODE_2500BASEX; - - return PHY_INTERFACE_MODE_NA; -} - /* Support 10, 100, 200, 1000 Mbps (e.g. 88E6352 family) */ int mv88e6352_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, int speed, int duplex) @@ -372,14 +364,6 @@ int mv88e6390_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, duplex); } -phy_interface_t mv88e6390_port_max_speed_mode(int port) -{ - if (port == 9 || port == 10) - return PHY_INTERFACE_MODE_2500BASEX; - - return PHY_INTERFACE_MODE_NA; -} - /* Support 10, 100, 200, 1000, 2500, 10000 Mbps (e.g. 88E6190X) */ int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, int speed, int duplex) @@ -394,14 +378,6 @@ int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, duplex); } -phy_interface_t mv88e6390x_port_max_speed_mode(int port) -{ - if (port == 9 || port == 10) - return PHY_INTERFACE_MODE_XAUI; - - return PHY_INTERFACE_MODE_NA; -} - /* Support 10, 100, 200, 1000, 2500, 5000, 10000 Mbps (e.g. 88E6393X) * Function mv88e6xxx_port_set_speed_duplex() can't be used as the register * values for speeds 2500 & 5000 conflict. @@ -491,14 +467,6 @@ int mv88e6393x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, return 0; } -phy_interface_t mv88e6393x_port_max_speed_mode(int port) -{ - if (port == 0 || port == 9 || port == 10) - return PHY_INTERFACE_MODE_10GBASER; - - return PHY_INTERFACE_MODE_NA; -} - static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port, phy_interface_t mode, bool force) { diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h index cb04243f37c1..2a5741a44e97 100644 --- a/drivers/net/dsa/mv88e6xxx/port.h +++ b/drivers/net/dsa/mv88e6xxx/port.h @@ -357,11 +357,6 @@ int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, int mv88e6393x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, int speed, int duplex); -phy_interface_t mv88e6341_port_max_speed_mode(int port); -phy_interface_t mv88e6390_port_max_speed_mode(int port); -phy_interface_t mv88e6390x_port_max_speed_mode(int port); -phy_interface_t mv88e6393x_port_max_speed_mode(int port); - int mv88e6xxx_port_set_state(struct mv88e6xxx_chip *chip, int port, u8 state); int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map); diff --git a/net/dsa/port.c b/net/dsa/port.c index 35b4e1f8dc05..34487e62eb03 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -1525,6 +1525,7 @@ int dsa_port_phylink_create(struct dsa_port *dp) { struct dsa_switch *ds = dp->ds; phy_interface_t mode, def_mode; + struct device_node *phy_np; int err; /* Presence of phylink_mac_link_state or phylink_mac_an_restart is @@ -1559,6 +1560,13 @@ int dsa_port_phylink_create(struct dsa_port *dp) return PTR_ERR(dp->pl); } + if (dp->type == DSA_PORT_TYPE_CPU || dp->type == DSA_PORT_TYPE_DSA) { + phy_np = of_parse_phandle(dp->dn, "phy-handle", 0); + of_node_put(phy_np); + if (!phy_np) + err = phylink_set_max_fixed_link(dp->pl); + } + return 0; } @@ -1663,20 +1671,14 @@ static int dsa_port_phylink_register(struct dsa_port *dp) int dsa_port_link_register_of(struct dsa_port *dp) { struct dsa_switch *ds = dp->ds; - struct device_node *phy_np; int port = dp->index; if (!ds->ops->adjust_link) { - phy_np = of_parse_phandle(dp->dn, "phy-handle", 0); - if (of_phy_is_fixed_link(dp->dn) || phy_np) { - if (ds->ops->phylink_mac_link_down) - ds->ops->phylink_mac_link_down(ds, port, - MLO_AN_FIXED, PHY_INTERFACE_MODE_NA); - of_node_put(phy_np); - return dsa_port_phylink_register(dp); - } - of_node_put(phy_np); - return 0; + if (ds->ops->phylink_mac_link_down) + ds->ops->phylink_mac_link_down(ds, port, + MLO_AN_FIXED, PHY_INTERFACE_MODE_NA); + + return dsa_port_phylink_register(dp); } dev_warn(ds->dev,