From nobody Mon Feb 9 23:44:17 2026 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (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 C0B9E22FE0A for ; Sun, 1 Feb 2026 15:13:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769958816; cv=none; b=FUi/OmKm9q7EDgT1n+6uGm0PPPXs5eiw4me68BMRt1oYbMX5JL+4aoS87AwnYPPiuR39SIaUWimipm+lhasG+L8kW49V7LL85FF+AwCVvsYCXWEI231FLrEpYG9vZLxIZse7S9C1atpDLtZXArZKz4SZx2HRl0qdgLS6pXoMHUs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769958816; c=relaxed/simple; bh=hxU9uTphzVdXJ546kTYHYBQ7irsclrcINT2p/qgcf/g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LEQTbJ5ckwkE3Xuvo0eaVnsY6Qhbkuh/gdAWiSRFpnH4oBWHMOjei1/R/0MrDx2FbmA7pXkLt+gpj40BUkv+6qdoXbwRqCPuP7V4pNV+loXAm3L7fcfuhX5yMLRmPToSIMqfI3hPjbTf0BHAWYFayVmiqN4sJYlMxfjyxRAQtxQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=Na7GWzxs; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="Na7GWzxs" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 9A294C237CA; Sun, 1 Feb 2026 15:13:32 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 4484F60720; Sun, 1 Feb 2026 15:13:28 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id B149F119A88FA; Sun, 1 Feb 2026 16:13:24 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1769958807; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=bRI683hcvnEM35da1o7ilYv7pwt3yyezbBrMJM8t6dQ=; b=Na7GWzxsu9rotQ3G7SdPsag0T2VPEc31VJBpwNVzSGbs9A86ABN//0ZlMrFBEPVAeiQNdj YZyyQlnVPKvOFBc+xfl3U2e1gBVBYROdqmhsCKFbe5AN2tVs5FTTTPOBwCN19OUPKA1DA2 mNev6cxyTWfvPpBFS5JQWcpJhBFeWoNM/rY0vRpUV5NqNd/w0DKNTvhQCiAaTCYgB0sBl9 WY+qhLdS2nFl5k2m2J+DGE3jE+gja9XV6jiiiyQYIQp5pDjEhm325gR9f9G2njExFo7kcI 4g+piHNZawR3ld0oGV01vLCmFl3HyYSGTHTT1H9uhGpz0yACPDuKVO1sPLYPpg== From: Maxime Chevallier To: davem@davemloft.net, Andrew Lunn , Jakub Kicinski , Eric Dumazet , Paolo Abeni , Russell King , Heiner Kallweit Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com, Christophe Leroy , Herve Codina , Florian Fainelli , Vladimir Oltean , =?UTF-8?q?K=C3=B6ry=20Maincent?= , =?UTF-8?q?Marek=20Beh=C3=BAn?= , Oleksij Rempel , =?UTF-8?q?Nicol=C3=B2=20Veronese?= , Simon Horman , mwojtas@chromium.org, Romain Gantois , Daniel Golle , Dimitri Fedrau Subject: [PATCH net-next v3 07/11] net: phylink: Represent PHY-less SFP modules with phy_port Date: Sun, 1 Feb 2026 16:12:44 +0100 Message-ID: <20260201151249.642015-8-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20260201151249.642015-1-maxime.chevallier@bootlin.com> References: <20260201151249.642015-1-maxime.chevallier@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Last-TLS-Session-Version: TLSv1.3 Content-Type: text/plain; charset="utf-8" Let phylink handle the phy_port for PHY-less modules, and register it to the topology. Signed-off-by: Maxime Chevallier --- drivers/net/phy/phylink.c | 76 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 74 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 7a07de1d42bb..d65fa6cd1ebb 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -96,6 +96,7 @@ struct phylink { __ETHTOOL_DECLARE_LINK_MODE_MASK(sfp_support); u8 sfp_port; struct phy_port *sfp_bus_port; + struct phy_port *mod_port; =20 struct eee_config eee_cfg; =20 @@ -1787,13 +1788,31 @@ static int phylink_create_sfp_port(struct phylink *= pl) else pl->sfp_bus_port =3D port; =20 + if (pl->mod_port) { + ret =3D phy_link_topo_add_port(pl->netdev, pl->mod_port); + if (ret) + goto out_bus_port; + } + + return 0; +out_bus_port: + phy_link_topo_del_port(pl->netdev, port); + phy_port_destroy(port); return ret; } =20 static void phylink_destroy_sfp_port(struct phylink *pl) { - if (pl->netdev && pl->sfp_bus_port) - phy_link_topo_del_port(pl->netdev, pl->sfp_bus_port); + if (pl->netdev) { + if (pl->sfp_bus_port) + phy_link_topo_del_port(pl->netdev, pl->sfp_bus_port); + + /* Only remove it from the topology, it will be destroyed at + * module removal. + */ + if (pl->mod_port) + phy_link_topo_del_port(pl->netdev, pl->mod_port); + } =20 if (pl->sfp_bus_port) phy_port_destroy(pl->sfp_bus_port); @@ -3919,14 +3938,65 @@ static void phylink_sfp_module_remove(void *upstrea= m) phy_interface_zero(pl->sfp_interfaces); } =20 +static int phylink_add_sfp_mod_port(struct phylink *pl) +{ + const struct sfp_module_caps *caps; + struct phy_port *port; + int ret =3D 0; + + if (!pl->sfp_bus_port) + return 0; + + /* Create mod port */ + port =3D phy_port_alloc(); + if (!port) + return -ENOMEM; + + port->active =3D true; + + caps =3D sfp_get_module_caps(pl->sfp_bus); + + phy_caps_linkmode_filter_ifaces(port->supported, caps->link_modes, + pl->sfp_bus_port->interfaces); + + if (pl->netdev) { + ret =3D phy_link_topo_add_port(pl->netdev, port); + if (ret) { + phy_port_destroy(port); + return ret; + } + } + + pl->mod_port =3D port; + + return 0; +} + +static void phylink_del_sfp_mod_port(struct phylink *pl) +{ + if (!pl->mod_port) + return; + + if (pl->netdev) + phy_link_topo_del_port(pl->netdev, pl->mod_port); + + phy_port_destroy(pl->mod_port); + pl->mod_port =3D NULL; +} + static int phylink_sfp_module_start(void *upstream) { struct phylink *pl =3D upstream; + int ret; =20 /* If this SFP module has a PHY, start the PHY now. */ if (pl->phydev) { phy_start(pl->phydev); return 0; + } else { + ret =3D phylink_add_sfp_mod_port(pl); + if (ret) + return ret; } =20 /* If the module may have a PHY but we didn't detect one we @@ -3945,6 +4015,8 @@ static void phylink_sfp_module_stop(void *upstream) /* If this SFP module has a PHY, stop it. */ if (pl->phydev) phy_stop(pl->phydev); + else + phylink_del_sfp_mod_port(pl); } =20 static void phylink_sfp_link_down(void *upstream) --=20 2.49.0