From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 13A7026D4C1; Tue, 11 Nov 2025 01:23:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762824208; cv=none; b=JpKQcw/tRme/bJ2Hti4betTiRyTEX+RynrAD6Luq9n1zYZ4CnZ8lO9FDTZDncpm+TYaQjIO62fqnH6wIjh4qVd0CfwGSg/me7JVuuwmQg54zcfTfhQzGyFmP8JaOadubKxCToz1W2SHOLhZeSnjcKru16gztIZmaG5UwsSqtmTw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762824208; c=relaxed/simple; bh=elFJri/nCeLqO0D8bV9P/sdDKlpVzMMaKgyCyoSUwjQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cxIGiTlyLJwr+a+1SCHQbNMZaw1mkhjFxoSnh9vODH6tyD2xqz2BLCE7ZKSfKBPwVnQV/4GfM4g4cyESjonnvLzM7Hg5jiwhZX28wvwGdpAy6h3yFP8ITHIdxh/LSpBirkEIKSK4PwXfoaQ3RG5CVUcDTS6d/a/sgHi2J0sYphc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=NlzvkRXV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="NlzvkRXV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5CC88C4CEF5; Tue, 11 Nov 2025 01:23:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1762824207; bh=elFJri/nCeLqO0D8bV9P/sdDKlpVzMMaKgyCyoSUwjQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NlzvkRXVkf30nF6L7nDIEN4xLQnRwEQcujUsFLv9YS1g20vqj4uAVB0OJ7hfC+c3R fTO5dTUU0i4fG+/7C3OdB21kNiOjKB6PoCKJNyOJRsTYe+4Rm5LyB4MfsyrjNyZpLI 76zVQwo4ZMZ3B2v574dsttQhbTYnwWDXPJ9Tg0yg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Vladimir Oltean , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.17 462/849] net: dsa: felix: support phy-mode = "10g-qxgmii" Date: Tue, 11 Nov 2025 09:40:32 +0900 Message-ID: <20251111004547.596854857@linuxfoundation.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251111004536.460310036@linuxfoundation.org> References: <20251111004536.460310036@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vladimir Oltean [ Upstream commit 6f616757dd306fce4b55131df23737732e347d8f ] The "usxgmii" phy-mode that the Felix switch ports support on LS1028A is not quite USXGMII, it is defined by the USXGMII multiport specification document as 10G-QXGMII. It uses the same signaling as USXGMII, but it multiplexes 4 ports over the link, resulting in a maximum speed of 2.5G per port. This change is needed in preparation for the lynx-10g SerDes driver on LS1028A, which will make a more clear distinction between usxgmii (supported on lane 0) and 10g-qxgmii (supported on lane 1). These protocols have their configuration in different PCCR registers (PCCRB vs PCCR9). Continue parsing and supporting single-port-per-lane USXGMII when found in the device tree as usual (because it works), but add support for 10G-QXGMII too. Using phy-mode = "10g-qxgmii" will be required when modifying the device trees to specify a "phys" phandle to the SerDes lane. The result when the "phys" phandle is present but the phy-mode is wrong is undefined. The only PHY driver in known use with this phy-mode, AQR412C, will gain logic to transition from "usxgmii" to "10g-qxgmii" in a future change. Prepare the driver by also setting PHY_INTERFACE_MODE_10G_QXGMII in supported_interfaces when PHY_INTERFACE_MODE_USXGMII is there, to prevent breakage with existing device trees. Signed-off-by: Vladimir Oltean Link: https://patch.msgid.link/20250903130730.2836022-3-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/dsa/ocelot/felix.c | 4 ++++ drivers/net/dsa/ocelot/felix.h | 3 ++- drivers/net/dsa/ocelot/felix_vsc9959.c | 3 ++- 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index 2dd4e56e1cf11..20ab558fde247 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -1153,6 +1153,9 @@ static void felix_phylink_get_caps(struct dsa_switch *ds, int port, __set_bit(ocelot->ports[port]->phy_mode, config->supported_interfaces); + if (ocelot->ports[port]->phy_mode == PHY_INTERFACE_MODE_USXGMII) + __set_bit(PHY_INTERFACE_MODE_10G_QXGMII, + config->supported_interfaces); } static void felix_phylink_mac_config(struct phylink_config *config, @@ -1359,6 +1362,7 @@ static const u32 felix_phy_match_table[PHY_INTERFACE_MODE_MAX] = { [PHY_INTERFACE_MODE_SGMII] = OCELOT_PORT_MODE_SGMII, [PHY_INTERFACE_MODE_QSGMII] = OCELOT_PORT_MODE_QSGMII, [PHY_INTERFACE_MODE_USXGMII] = OCELOT_PORT_MODE_USXGMII, + [PHY_INTERFACE_MODE_10G_QXGMII] = OCELOT_PORT_MODE_10G_QXGMII, [PHY_INTERFACE_MODE_1000BASEX] = OCELOT_PORT_MODE_1000BASEX, [PHY_INTERFACE_MODE_2500BASEX] = OCELOT_PORT_MODE_2500BASEX, }; diff --git a/drivers/net/dsa/ocelot/felix.h b/drivers/net/dsa/ocelot/felix.h index 211991f494e35..a657b190c5d7b 100644 --- a/drivers/net/dsa/ocelot/felix.h +++ b/drivers/net/dsa/ocelot/felix.h @@ -12,8 +12,9 @@ #define OCELOT_PORT_MODE_SGMII BIT(1) #define OCELOT_PORT_MODE_QSGMII BIT(2) #define OCELOT_PORT_MODE_2500BASEX BIT(3) -#define OCELOT_PORT_MODE_USXGMII BIT(4) +#define OCELOT_PORT_MODE_USXGMII BIT(4) /* compatibility */ #define OCELOT_PORT_MODE_1000BASEX BIT(5) +#define OCELOT_PORT_MODE_10G_QXGMII BIT(6) struct device_node; diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c index 7b35d24c38d76..8cf4c89865876 100644 --- a/drivers/net/dsa/ocelot/felix_vsc9959.c +++ b/drivers/net/dsa/ocelot/felix_vsc9959.c @@ -34,7 +34,8 @@ OCELOT_PORT_MODE_QSGMII | \ OCELOT_PORT_MODE_1000BASEX | \ OCELOT_PORT_MODE_2500BASEX | \ - OCELOT_PORT_MODE_USXGMII) + OCELOT_PORT_MODE_USXGMII | \ + OCELOT_PORT_MODE_10G_QXGMII) static const u32 vsc9959_port_modes[VSC9959_NUM_PORTS] = { VSC9959_PORT_MODE_SERDES, -- 2.51.0