From nobody Mon Feb 9 02:08:20 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 8A8A72E2822; Thu, 16 Oct 2025 16:48:18 +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=1760633300; cv=none; b=UPzKHAM4wQvWpwE6v1OZF0JK6F3hurd+NeBCvxezE0F8u48IxDIDn2CY+w1TBKriyCUreBm4NPBY7luAHdIoycp0QReLoQeldRk2hav8TcEFykkTgn1EIbcdSzUnZS5CNiUSBd4Gov4ngwtlQQ7gov3lMd1nRKMFb149Vavfep4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760633300; c=relaxed/simple; bh=/8OlGL1P3C9MsDabUARR9ejcLw2gSgCGgauhxNutVmE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=brP/UbVk9r/gZ3JDnFvBA0DoaOIDIbW9kHFXQUisBMj50Kc8VutVlk5SVE8u7EQ9/44ui0TDDiz6xENTKchnp6F0rrKg8eveLdu4R8RuRwJrwCMmAUtqUZUhrCfGBI/3xWm3WG5YVtQt2lpHl1+Vna9Y91eDqr+AikVhd3+qK8s= 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=CxEZ9Urn; dkim=pass (2048-bit key) header.d=birger-koblitz.de header.i=@birger-koblitz.de header.b=h1ZORsBG; 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="CxEZ9Urn"; dkim=pass (2048-bit key) header.d=birger-koblitz.de header.i=@birger-koblitz.de header.b="h1ZORsBG" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=birger-koblitz.de; s=default; t=1760633291; bh=/8OlGL1P3C9MsDabUARR9ejcLw2gSgCGgauhxNutVmE=; h=From:Date:Subject:To:Cc:From; b=CxEZ9UrnHvmrVb38n8TQfp9UUeYRlmaH1i7Zzq75YyL3KqUFDeOw8ytM0vjGFrydx HnumDxYsjUxoaWpGd6VWEZCA9BYbsdqEQnyhj9i2oA7NXZiY18ykYaGSeJC4VBTPyk VMAapHNjTa1Xhd17kMLY4CCLHS//SYx8lG3Uvtwh3gTHbF4SUmwSw2hepP/2WZY+If xNXT2TVg0J4NFIbeR529EsdSMg+Ot70Q4H+248yhseOQ2mhJg7/hhXDdcm6UQT51pP rnxYpt3G4teHT+edhNLvKxBjCXDE1PzO2zbqH8jzDqW07sGWI7Alns5JD8KKkrI8eB XOt8OyhojegQw== Received: by bkemail.birger-koblitz.de (Postfix, from userid 109) id 0E75D4857E; Thu, 16 Oct 2025 16:48:11 +0000 (UTC) X-Spam-Level: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=birger-koblitz.de; s=default; t=1760633289; bh=/8OlGL1P3C9MsDabUARR9ejcLw2gSgCGgauhxNutVmE=; h=From:Date:Subject:To:Cc:From; b=h1ZORsBG2GvCV8VxI3cBXf3yIV1BQC/kBkymAJTHyu/hilTxOH4Cse0lzbWt75242 astiObA/+J08xGiPx9UVjFNd8yR36l/Ca7wtqrFpbEmmyrPiuOWoKCdaoWGYuAzDrc B139rHssUaUxzg38mlXoDkmAknpndIG3u7r26krJMt3zuZfaCeRSmwdk5Uj7Kn5iGF x8Yc6S/zR7d+FjA4eRXexuazYfg/HkiEn7gIDG0DGZTtEyDdyNIFUOwseCNIcJNqIn eKeW0sKNpNvophivzL4rpQ+/ftv6bw//aypQ5sVVjJ6nzjN9D0zPdMA02tFOPIIAlm iH9IH8v1Ay0sA== Received: from AMDDesktop.lan (unknown [IPv6:2a00:6020:47a3:e800:94d3:d213:724a:4e07]) by bkemail.birger-koblitz.de (Postfix) with ESMTPSA id 642D948573; Thu, 16 Oct 2025 16:48:09 +0000 (UTC) From: Birger Koblitz Date: Thu, 16 Oct 2025 18:48:04 +0200 Subject: [PATCH net-next v4] 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: <20251016-10gbx-v4-1-0ac202bf56ac@birger-koblitz.de> X-B4-Tracking: v=1; b=H4sIAMMh8WgC/3WOQQ6CMBBFr0K6tqZTWiiuvIdxUdoRJhowhRCUc HcLkcQFLv/PvDd/Yh0Gwo6dkokFHKijtolBHRLmattUyMnHzKSQGgRIDqIqR25LZaTTCF4rFm+ fAW80rp7LNeaaur4Nr1U7wNJuhvRrGIBD1BSmyOwt9dqcSwoVBn5vywf176NHtpgG+UurjY5De GGE01IBAOb/6HSXjiO4Fs5bk8kcit3f8zx/AKxQ8dUeAQAA 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 , Andrew Lunn , Paul Menzel , Aleksandr Loktionov X-Mailer: b4 0.14.2 Add 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 Reviewed-by: Paul Menzel Reviewed-by: Aleksandr Loktionov Tested-by: Rinitha S (A Contingent worker at Intel) --- Changes in v4: Added "Reviewed-bys". Slight rewording of commit message. - Link to v3: https://lore.kernel.org/r/20251014-10gbx-v3-1-50cda8627198@bi= rger-koblitz.de Changes in v3: Added "Reviewed-by". There also was a possible mailserver DKIM misconfigu= ration that may have prevented recipients to recieve the previous mails=20 - Link to v2: https://lore.kernel.org/r/20251014-10gbx-v2-1-980c524111e7@bi= rger-koblitz.de 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