From nobody Fri Dec 19 17:37:19 2025 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 91C603081D2; Tue, 14 Oct 2025 04:18:38 +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=1760415520; cv=none; b=LHD5woQjRV+Zwmh92uV/Tk03X7evpkvIO5KuddOe7de+wjdz4Dhwor4uqp7iSeCe9yQar3a43bHv2Sy7cJ3fM1R5whhiXOT+DAYLuwGjq91Ep8KG+FKojI86pG004yiqeyWOChJm8PsEC5wTGzAfkXmyAyC+Rbl+51AQrPC1fmc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760415520; c=relaxed/simple; bh=8AwRB+K/IRjhY1iwymqfzyVUZsoxhiKgrRacT0ZgHd8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=ICB0S1yQGbz0b8xPjBDezOk1lczeDMgwdXouSO/nRKZ+7TjJ4VqLEdz8EwSeS2rJ/HXPNjPA5C/htvpKyKv0n9sl3zFidtcDEk60+CsDnIcB8tuK/BqOWAcAi5oj4v1sfOXldw0ikB+kLVbD7yJT+eIP4CuOJMkiY2kNrdD7+5Y= 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; 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 Received: by bkemail.birger-koblitz.de (Postfix, from userid 109) id 910CA48519; Tue, 14 Oct 2025 04:18:36 +0000 (UTC) X-Spam-Level: Received: from AMDDesktop.lan (unknown [IPv6:2a00:6020:47a3:e800:94d3:d213:724a:4e07]) by bkemail.birger-koblitz.de (Postfix) with ESMTPSA id 4E51948390; Tue, 14 Oct 2025 04:18:35 +0000 (UTC) From: Birger Koblitz Date: Tue, 14 Oct 2025 06:18:27 +0200 Subject: [PATCH net-next v2] ixgbe: Add 10G-BX support 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: <20251014-10gbx-v2-1-980c524111e7@birger-koblitz.de> X-B4-Tracking: v=1; b=H4sIABLP7WgC/zXMQQ6CMBCF4auQWVvTKdSAK+9hWLR0gIkGSEsal PTuVqLL/+Xl2yGQZwpwLXbwFDnwPOVQpwK60UwDCXa5QUmlUaISKAe7CWOrWnWa0OkK8nfx1PN 2OPc298hhnf3rYCN+179Q/oSIAjPT1M3F9KXT9c2yH8iLx2yfvL7PjqBNKX0AABBKKKIAAAA= X-Change-ID: 20251012-10gbx-ab482c5e1d54 To: Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Birger Koblitz X-Mailer: b4 0.14.2 Adds support for 10G-BX modules, i.e. 10GBit Ethernet over a single strand Single-Mode fiber The initialization of a 10G-BX SFP+ is the same as for a 10G SX/LX module, and is identified according to SFF-8472 table 5-3, footnote 3 by the 10G Ethernet Compliance Codes field being empty, the Nominal Bit Rate being compatible with 12.5GBit, and the module being a fiber module with a Single Mode fiber link length. This was tested using a Lightron WSPXG-HS3LC-IEA 1270/1330nm 10km transceiver: $ sudo ethtool -m enp1s0f1 Identifier : 0x03 (SFP) Extended identifier : 0x04 (GBIC/SFP defined by 2-wire i= nterface ID) Connector : 0x07 (LC) Transceiver codes : 0x00 0x00 0x00 0x00 0x00 0x00 0x00= 0x00 0x00 Encoding : 0x01 (8B/10B) BR Nominal : 10300MBd Rate identifier : 0x00 (unspecified) Length (SMF) : 10km Length (OM2) : 0m Length (OM1) : 0m Length (Copper or Active cable) : 0m Length (OM3) : 0m Laser wavelength : 1330nm Vendor name : Lightron Inc. Vendor OUI : 00:13:c5 Vendor PN : WSPXG-HS3LC-IEA Vendor rev : 0000 Option values : 0x00 0x1a Option : TX_DISABLE implemented BR margin max : 0% BR margin min : 0% Vendor SN : S142228617 Date code : 140611 Optical diagnostics support : Yes Signed-off-by: Birger Koblitz Reviewed-by: Andrew Lunn --- Changes in v2: Allow also modules with only Byte 15 (100m SM link length) set to be identified as BX --- drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c | 7 ++++ drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 2 ++ drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 43 ++++++++++++++++++++= +--- drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h | 2 ++ drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 2 ++ 5 files changed, 51 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c b/drivers/net/e= thernet/intel/ixgbe/ixgbe_82599.c index d5b1b974b4a33e7dd51b7cfe5ea211ff038a36f0..892a73a4bc6b0bb1c976ca95bf8= 74059b987054f 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c @@ -342,6 +342,13 @@ static int ixgbe_get_link_capabilities_82599(struct ix= gbe_hw *hw, return 0; } =20 + if (hw->phy.sfp_type =3D=3D ixgbe_sfp_type_10g_bx_core0 || + hw->phy.sfp_type =3D=3D ixgbe_sfp_type_10g_bx_core1) { + *speed =3D IXGBE_LINK_SPEED_10GB_FULL; + *autoneg =3D false; + return 0; + } + /* * Determine link capabilities based on the stored value of AUTOC, * which represents EEPROM defaults. If AUTOC value has not been diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net= /ethernet/intel/ixgbe/ixgbe_ethtool.c index 2d660e9edb80af8fc834e097703dfd6a82b8c45b..76edf02bc47e5dd24bb0936f730= f036181f6dc2a 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -351,6 +351,8 @@ static int ixgbe_get_link_ksettings(struct net_device *= netdev, case ixgbe_sfp_type_1g_lx_core1: case ixgbe_sfp_type_1g_bx_core0: case ixgbe_sfp_type_1g_bx_core1: + case ixgbe_sfp_type_10g_bx_core0: + case ixgbe_sfp_type_10g_bx_core1: ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); ethtool_link_ksettings_add_link_mode(cmd, advertising, diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/eth= ernet/intel/ixgbe/ixgbe_phy.c index 2449e4cf2679ddf3277f4ada7619303eb618d393..ad6a1eae6042bb16e329fb817bc= fcb87e9008ce8 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c @@ -1541,6 +1541,8 @@ int ixgbe_identify_sfp_module_generic(struct ixgbe_hw= *hw) u8 identifier =3D 0; u8 cable_tech =3D 0; u8 cable_spec =3D 0; + u8 sm_length_km =3D 0; + u8 sm_length_100m =3D 0; int status; =20 if (hw->mac.ops.get_media_type(hw) !=3D ixgbe_media_type_fiber) { @@ -1678,6 +1680,31 @@ int ixgbe_identify_sfp_module_generic(struct ixgbe_h= w *hw) else hw->phy.sfp_type =3D ixgbe_sfp_type_1g_bx_core1; + /* Support Ethernet 10G-BX, checking the Bit Rate + * Nominal Value as per SFF-8472 to be 12.5 Gb/s (67h) and + * Single Mode fibre with at least 1km link length + */ + } else if ((!comp_codes_10g) && (bitrate_nominal =3D=3D 0x67) && + (!(cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE)) && + (!(cable_tech & IXGBE_SFF_DA_ACTIVE_CABLE))) { + status =3D hw->phy.ops.read_i2c_eeprom(hw, + IXGBE_SFF_SM_LENGTH_KM, + &sm_length_km); + if (status !=3D 0) + goto err_read_i2c_eeprom; + status =3D hw->phy.ops.read_i2c_eeprom(hw, + IXGBE_SFF_SM_LENGTH_100M, + &sm_length_100m); + if (status !=3D 0) + goto err_read_i2c_eeprom; + if (sm_length_km > 0 || sm_length_100m >=3D 10) { + if (hw->bus.lan_id =3D=3D 0) + hw->phy.sfp_type =3D + ixgbe_sfp_type_10g_bx_core0; + else + hw->phy.sfp_type =3D + ixgbe_sfp_type_10g_bx_core1; + } } else { hw->phy.sfp_type =3D ixgbe_sfp_type_unknown; } @@ -1768,7 +1795,9 @@ int ixgbe_identify_sfp_module_generic(struct ixgbe_hw= *hw) hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_sx_core0 || hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_sx_core1 || hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core0 || - hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core1)) { + hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core1 || + hw->phy.sfp_type =3D=3D ixgbe_sfp_type_10g_bx_core0 || + hw->phy.sfp_type =3D=3D ixgbe_sfp_type_10g_bx_core1)) { hw->phy.type =3D ixgbe_phy_sfp_unsupported; return -EOPNOTSUPP; } @@ -1786,7 +1815,9 @@ int ixgbe_identify_sfp_module_generic(struct ixgbe_hw= *hw) hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_sx_core0 || hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_sx_core1 || hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core0 || - hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core1)) { + hw->phy.sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core1 || + hw->phy.sfp_type =3D=3D ixgbe_sfp_type_10g_bx_core0 || + hw->phy.sfp_type =3D=3D ixgbe_sfp_type_10g_bx_core1)) { /* Make sure we're a supported PHY type */ if (hw->phy.type =3D=3D ixgbe_phy_sfp_intel) return 0; @@ -2016,20 +2047,22 @@ int ixgbe_get_sfp_init_sequence_offsets(struct ixgb= e_hw *hw, return -EOPNOTSUPP; =20 /* - * Limiting active cables and 1G Phys must be initialized as + * Limiting active cables, 10G BX and 1G Phys must be initialized as * SR modules */ if (sfp_type =3D=3D ixgbe_sfp_type_da_act_lmt_core0 || sfp_type =3D=3D ixgbe_sfp_type_1g_lx_core0 || sfp_type =3D=3D ixgbe_sfp_type_1g_cu_core0 || sfp_type =3D=3D ixgbe_sfp_type_1g_sx_core0 || - sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core0) + sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core0 || + sfp_type =3D=3D ixgbe_sfp_type_10g_bx_core0) sfp_type =3D ixgbe_sfp_type_srlr_core0; else if (sfp_type =3D=3D ixgbe_sfp_type_da_act_lmt_core1 || sfp_type =3D=3D ixgbe_sfp_type_1g_lx_core1 || sfp_type =3D=3D ixgbe_sfp_type_1g_cu_core1 || sfp_type =3D=3D ixgbe_sfp_type_1g_sx_core1 || - sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core1) + sfp_type =3D=3D ixgbe_sfp_type_1g_bx_core1 || + sfp_type =3D=3D ixgbe_sfp_type_10g_bx_core1) sfp_type =3D ixgbe_sfp_type_srlr_core1; =20 /* Read offset to PHY init contents */ diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/eth= ernet/intel/ixgbe/ixgbe_phy.h index 81179c60af4e0199a8b9d0fcdf34654b02eedfac..039ba4b6c120f3e824c93cb00fd= d9483e7cf9cba 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h @@ -32,6 +32,8 @@ #define IXGBE_SFF_QSFP_1GBE_COMP 0x86 #define IXGBE_SFF_QSFP_CABLE_LENGTH 0x92 #define IXGBE_SFF_QSFP_DEVICE_TECH 0x93 +#define IXGBE_SFF_SM_LENGTH_KM 0xE +#define IXGBE_SFF_SM_LENGTH_100M 0xF =20 /* Bitmasks */ #define IXGBE_SFF_DA_PASSIVE_CABLE 0x4 diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/et= hernet/intel/ixgbe/ixgbe_type.h index b1bfeb21537acc44c31aedcb0584374e8f6ecd45..61f2ef67defddeab9ff4aa83c8f= 017819594996b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h @@ -3286,6 +3286,8 @@ enum ixgbe_sfp_type { ixgbe_sfp_type_1g_lx_core1 =3D 14, ixgbe_sfp_type_1g_bx_core0 =3D 15, ixgbe_sfp_type_1g_bx_core1 =3D 16, + ixgbe_sfp_type_10g_bx_core0 =3D 17, + ixgbe_sfp_type_10g_bx_core1 =3D 18, =20 ixgbe_sfp_type_not_present =3D 0xFFFE, ixgbe_sfp_type_unknown =3D 0xFFFF --- base-commit: 67029a49db6c1f21106a1b5fcdd0ea234a6e0711 change-id: 20251012-10gbx-ab482c5e1d54 Best regards, --=20 Birger Koblitz