From nobody Mon Apr 6 23:23:28 2026 Received: from bkemail.birger-koblitz.de (bkemail.birger-koblitz.de [23.88.97.239]) (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 4BDA737EFED; Tue, 17 Mar 2026 18:07:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=23.88.97.239 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773770847; cv=none; b=LCuOiZKLX8iUOhs5v1rmYXYOlw0abJuk6TJz0Hg/QXMbRPf7Y9vIyMOq2avbWSTfzTEb1Pjj7H2SNZ/uxEu5Jwg+BXaQYo/NqQuzM6neio5pfQ+poERqrE2MXhrAWh9OnT0uV4n+bFzKZB7XweSHLssJCfvukxE8dbly4QngNlI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773770847; c=relaxed/simple; bh=BDvwioO8gC1x/W8UZX2A6UuH8D3nEdqWNTqn6htIJP8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=VtwYl8shihmCe3kUpx07d6mdAAU3IlrOz06wrpUPevZJRgNM/DdVxsb+6uWJ8bWRLAp6AkN4PNpTcoFMNPIdNgC/B2OOF55zb8DJHI7cm28I/DslGBmYvAbqlgbpYEMhZkbGJMgr7ov+bgNd+tP7a/K4HBkfXONUJhEaEA6XI24= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=birger-koblitz.de; spf=pass smtp.mailfrom=birger-koblitz.de; dkim=pass (2048-bit key) header.d=birger-koblitz.de header.i=@birger-koblitz.de header.b=DoqzXXFV; dkim=pass (2048-bit key) header.d=birger-koblitz.de header.i=@birger-koblitz.de header.b=I1B0C5Jx; arc=none smtp.client-ip=23.88.97.239 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=birger-koblitz.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=birger-koblitz.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=birger-koblitz.de header.i=@birger-koblitz.de header.b="DoqzXXFV"; dkim=pass (2048-bit key) header.d=birger-koblitz.de header.i=@birger-koblitz.de header.b="I1B0C5Jx" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=birger-koblitz.de; s=default; t=1773770844; bh=BDvwioO8gC1x/W8UZX2A6UuH8D3nEdqWNTqn6htIJP8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=DoqzXXFVYCKkRYwUFubEg0P4UVadDOTTN/c+aZ4nzAT4n9/kbWwuxabN6vTeJ/evG QbdGtb5kPCTuJMQNXW7vAWTByKdurHMW/EBuBe97YYRkPyjqBIGmF05xHcAxu9eZcX EcCsxh8MkKawDQ0q/zqkCwixuUc+rVBsFeyrEBhFso4fiNRGeENRNPaWGdQUP6N451 xK+5ZJ1ifFAODwFVJP95H4Nm61j4fxthFm5Txrslm0DK9bO2TcK1jUjYN4CKQBdjdZ 80Ph+VKAs+nd1o5Y7eUrsH5KOTSHrSnNt1ropzKqibl8qJAPFvJjeWwtfJS3eho7YM 5QXfRt1hpAshw== Received: by bkemail.birger-koblitz.de (Postfix, from userid 109) id D65503FE10; Tue, 17 Mar 2026 18:07:24 +0000 (UTC) X-Spam-Level: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=birger-koblitz.de; s=default; t=1773770843; bh=BDvwioO8gC1x/W8UZX2A6UuH8D3nEdqWNTqn6htIJP8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=I1B0C5Jxhfedt9KUhVRCuZdXV8fv6yqgkKiEtaBUnIKEuEokRgXnOdovo5IBn5Ig0 osSifaAbUPmLwIG9pna6qZUoA6cxLuhwUXBuYSh0c3qbQX8icdKxWZ5xbNTrEnzGz+ 9uQ0dDSxLBrFxFl3JyCygxMyXiJlHmDVRrf2Rcqn5xLiVODSS6vcuHGzxcEgf89uoO beCWa1zOteliMtFMm6U9gA0jr+8GOiOTZWL+Cf/zARPrbvXAEJrdsNJ5BqYsjumoPw t+G9B8nLgdUi/2OHyqgbZDE7vkjkfwynmOzeO/ED3j5BVcKItZZkEkEPOFjOEpId6v EML/0BzKgAfRA== Received: from AMDDesktop.lan (unknown [IPv6:2a00:6020:47a3:e800:271c:c6c5:9fde:77cb]) by bkemail.birger-koblitz.de (Postfix) with ESMTPSA id 647EF3FDEE; Tue, 17 Mar 2026 18:07:23 +0000 (UTC) From: Birger Koblitz Date: Tue, 17 Mar 2026 19:07:14 +0100 Subject: [PATCH net-next v2 1/2] r8152: Add support for 5Gbit Link Speeds and EEE Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260317-rtl8157_next-v2-1-10ea1fa488d1@birger-koblitz.de> References: <20260317-rtl8157_next-v2-0-10ea1fa488d1@birger-koblitz.de> In-Reply-To: <20260317-rtl8157_next-v2-0-10ea1fa488d1@birger-koblitz.de> To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Birger Koblitz X-Mailer: b4 0.14.2 The RTL8157 supports 5GBit Link speeds. Add support for this speed in the setup and setting/getting through ethool. Also add 5GBit EEE. Add functionality for setup and ethtool get/set methods. Signed-off-by: Birger Koblitz --- drivers/net/usb/r8152.c | 56 +++++++++++++++++++++++++++++++++++++++++++++= +--- 1 file changed, 53 insertions(+), 3 deletions(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 3b6d4252d34c63ead8f11a120e212325a5f7d505..bab8e10e5f99afcb332e333c273= 9ed7509b03419 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -604,6 +604,7 @@ enum spd_duplex { FORCE_100M_FULL, FORCE_1000M_FULL, NWAY_2500M_FULL, + NWAY_5000M_FULL, }; =20 /* OCP_ALDPS_CONFIG */ @@ -725,6 +726,7 @@ enum spd_duplex { #define BP4_SUPER_ONLY 0x1578 /* RTL_VER_04 only */ =20 enum rtl_register_content { + _5000bps =3D BIT(12), _2500bps =3D BIT(10), _1250bps =3D BIT(9), _500bps =3D BIT(8), @@ -738,6 +740,7 @@ enum rtl_register_content { }; =20 #define is_speed_2500(_speed) (((_speed) & (_2500bps | LINK_STATUS)) =3D= =3D (_2500bps | LINK_STATUS)) +#define is_speed_5000(_speed) (((_speed) & (_5000bps | LINK_STATUS)) =3D= =3D (_5000bps | LINK_STATUS)) #define is_flow_control(_speed) (((_speed) & (_tx_flow | _rx_flow)) =3D=3D= (_tx_flow | _rx_flow)) =20 #define RTL8152_MAX_TX 4 @@ -944,6 +947,7 @@ struct r8152 { unsigned int pipe_in, pipe_out, pipe_intr, pipe_ctrl_in, pipe_ctrl_out; =20 u32 support_2500full:1; + u32 support_5000full:1; u32 lenovo_macpassthru:1; u32 dell_tb_rx_agg_bug:1; u16 ocp_base; @@ -1194,6 +1198,7 @@ enum tx_csum_stat { #define RTL_ADVERTISED_1000_HALF BIT(4) #define RTL_ADVERTISED_1000_FULL BIT(5) #define RTL_ADVERTISED_2500_FULL BIT(6) +#define RTL_ADVERTISED_5000_FULL BIT(7) =20 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). * The RTL chips use a 64 element hash table based on the Ethernet CRC. @@ -5400,6 +5405,11 @@ static void r8156_eee_en(struct r8152 *tp, bool enab= le) else config &=3D ~MDIO_EEE_2_5GT; =20 + if (enable && (tp->eee_adv2 & MDIO_EEE_5GT)) + config |=3D MDIO_EEE_5GT; + else + config &=3D ~MDIO_EEE_5GT; + ocp_reg_write(tp, OCP_EEE_ADV2, config); } =20 @@ -6298,6 +6308,9 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 aut= oneg, u32 speed, u8 duplex, =20 if (tp->support_2500full) support |=3D RTL_ADVERTISED_2500_FULL; + + if (tp->support_5000full) + support |=3D RTL_ADVERTISED_5000_FULL; } =20 if (!(advertising & support)) @@ -6343,15 +6356,20 @@ static int rtl8152_set_speed(struct r8152 *tp, u8 a= utoneg, u32 speed, u8 duplex, r8152_mdio_write(tp, MII_CTRL1000, new1); } =20 - if (tp->support_2500full) { + if (tp->support_2500full || tp->support_5000full) { orig =3D ocp_reg_read(tp, OCP_10GBT_CTRL); - new1 =3D orig & ~MDIO_AN_10GBT_CTRL_ADV2_5G; + new1 =3D orig & ~(MDIO_AN_10GBT_CTRL_ADV2_5G | MDIO_AN_10GBT_CTRL_ADV5G= ); =20 if (advertising & RTL_ADVERTISED_2500_FULL) { new1 |=3D MDIO_AN_10GBT_CTRL_ADV2_5G; tp->ups_info.speed_duplex =3D NWAY_2500M_FULL; } =20 + if (advertising & RTL_ADVERTISED_5000_FULL) { + new1 |=3D MDIO_AN_10GBT_CTRL_ADV5G; + tp->ups_info.speed_duplex =3D NWAY_5000M_FULL; + } + if (orig !=3D new1) ocp_reg_write(tp, OCP_10GBT_CTRL, new1); } @@ -8780,6 +8798,9 @@ int rtl8152_get_link_ksettings(struct net_device *net= dev, linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, cmd->link_modes.supported, tp->support_2500full); =20 + linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, + cmd->link_modes.supported, tp->support_5000full); + if (tp->support_2500full) { linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, cmd->link_modes.advertising, @@ -8793,6 +8814,19 @@ int rtl8152_get_link_ksettings(struct net_device *ne= tdev, cmd->base.speed =3D SPEED_2500; } =20 + if (tp->support_5000full) { + linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, + cmd->link_modes.advertising, + ocp_reg_read(tp, OCP_10GBT_CTRL) & MDIO_AN_10GBT_CTRL_ADV5G); + + linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, + cmd->link_modes.lp_advertising, + ocp_reg_read(tp, OCP_10GBT_STAT) & MDIO_AN_10GBT_STAT_LP5G); + + if (is_speed_5000(rtl8152_get_speed(tp))) + cmd->base.speed =3D SPEED_5000; + } + mutex_unlock(&tp->control); =20 usb_autopm_put_interface(tp->intf); @@ -8840,6 +8874,10 @@ static int rtl8152_set_link_ksettings(struct net_dev= ice *dev, cmd->link_modes.advertising)) advertising |=3D RTL_ADVERTISED_2500_FULL; =20 + if (test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, + cmd->link_modes.advertising)) + advertising |=3D RTL_ADVERTISED_5000_FULL; + mutex_lock(&tp->control); =20 ret =3D rtl8152_set_speed(tp, cmd->base.autoneg, cmd->base.speed, @@ -8957,7 +8995,7 @@ static int r8152_set_eee(struct r8152 *tp, struct eth= tool_keee *eee) =20 tp->eee_en =3D eee->eee_enabled; tp->eee_adv =3D val; - if (tp->support_2500full) { + if (tp->support_2500full || tp->support_5000full) { val =3D linkmode_to_mii_eee_cap2_t(eee->advertised); tp->eee_adv2 =3D val; } @@ -8994,6 +9032,13 @@ static int r8153_get_eee(struct r8152 *tp, struct et= htool_keee *eee) linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, common); } =20 + if (tp->support_5000full) { + linkmode_set_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, eee->supported); + + if (speed & _5000bps) + linkmode_set_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT, common); + } + eee->eee_enabled =3D tp->eee_en; =20 if (speed & _1000bps) @@ -9934,6 +9979,11 @@ static int rtl8152_probe_once(struct usb_interface *= intf, } else { tp->speed =3D SPEED_1000; } + if (tp->support_5000full && + tp->udev->speed >=3D USB_SPEED_SUPER) { + tp->speed =3D SPEED_5000; + tp->advertising |=3D RTL_ADVERTISED_5000_FULL; + } tp->advertising |=3D RTL_ADVERTISED_1000_FULL; } tp->duplex =3D DUPLEX_FULL; --=20 2.47.3