From nobody Mon Feb 9 13:57:14 2026 Received: from smtpout-03.galae.net (smtpout-03.galae.net [185.246.85.4]) (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 7FFC33D6484 for ; Tue, 3 Feb 2026 17:29:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.85.4 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770139758; cv=none; b=CeT2GxfEg3TPhmM+k0Lkk94WIXfL1f63DvrJ04fNRhnLscLxm9xR7wgNwZsQtmpPXMaBPH9kKP9m8Qn3CATvp2OXy9GFtd7Ep8a6O0xGbiLch0PeYlDerNJO0oMhdBEwYDiqj3u2vwANOxZGtf44E8W80KszHs96gXDW4RR2ciY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770139758; c=relaxed/simple; bh=hxU9uTphzVdXJ546kTYHYBQ7irsclrcINT2p/qgcf/g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mqWA1zHUxF4L4SjOBYFkDTvWr2RZjLY78gvIXq4QEtQtU5dSY2Tc3nINMXAOQbQr+akFkwkkCdgagITP+FC5tsRGvMZNl0ahEGaMFmsOb/zUlMgnHYmElPfvpnaq8GGQWGHcIvw/hAKVshRWwAizG+cunLabLldAcF9/3kQOaO0= 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=Hk23vlIG; arc=none smtp.client-ip=185.246.85.4 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="Hk23vlIG" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-03.galae.net (Postfix) with ESMTPS id 1F4A84E423E3; Tue, 3 Feb 2026 17:29:16 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id E7D3260728; Tue, 3 Feb 2026 17:29:15 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 3CDFB119A88FB; Tue, 3 Feb 2026 18:29:12 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1770139754; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=bRI683hcvnEM35da1o7ilYv7pwt3yyezbBrMJM8t6dQ=; b=Hk23vlIGaKQSCFCsWMYeTx/2kVHZslTepJTqcO56IlWaH+srUMTvsUDMyrJJahalVHFqyh IZGJzPAfQouVNY2hFBxA8ovHD4vCJ/gIYvz08dRwWgZb6gAXHcC4xaauQSe6CFnxAujlYi 5Yl6SeXZNIdA45j/5VdkS0fasTNXPmi6c5u88x6V9ox7uPwi9WGDBVyKSaJdo2dquH7mCP VQJCfCNVmSLNVV/bBHIQsyVQhAJdbmjyCCshZiXZsmP7aGGsCa3lH6CxpvWHDqm3piX9zL DuLpLBQmovPrnbGc8+8rdO0FGxsH2eCL+H5y2FUnzPTHQLjUYz2spv8HMZbNtg== 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 v4 09/13] net: phylink: Represent PHY-less SFP modules with phy_port Date: Tue, 3 Feb 2026 18:28:33 +0100 Message-ID: <20260203172839.548524-10-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20260203172839.548524-1-maxime.chevallier@bootlin.com> References: <20260203172839.548524-1-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