From nobody Sun May 24 23:29:39 2026 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.2]) (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 216DB30F547; Wed, 20 May 2026 15:16:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779290208; cv=none; b=GepzmBNi9Ct0N+8n4QeBE/xGEOpAv0hPWG+tK/rkE5cZcIkS95j4hHbRDyXpzd9R/wsLIK2UA9LDsC7SfOsnF9tsnE+EUiqQ1+3zp3cFojMoFsqaSWXu/0yzJzI6ixPCra73+f34RN0AXrAej32HEuiULbcu0hCFXZ6LZZv5xQ8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779290208; c=relaxed/simple; bh=aZ5IZZoW0dBNQUdAcAhYjJx+cBXakC6q5BoauhT3H7Y=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=uiuswfLNsMeDxO5mB0dw3/QNqTcWCZm9fdoWvm/W7WqYV1pXgzD0/Li4WtckGWKjyZ65BFDqe5MLdQigZ+8tcd5Vtzah6GM7BdbzZTyQImyCAfdr1hRf0iHN85ygdBurVLlHA4KcDsZe2lkJcfd63ieLuJtzCcImrQF5ciZ0DDM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=lUIooypV; arc=none smtp.client-ip=117.135.210.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="lUIooypV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=8Z 2AzXHUKT2H2omvy06BjkSlm4zeHIifUYtRGSXDfG4=; b=lUIooypVuewvsKTWtj LZclr9Ac+VMNEzUSeAQOxfVW1jTk+7R/bCaKbVSAJL8GlwtJPWD6VAo2BFlYPdZd Htnp7CQC1XRgddEIcynZmjakg5aO6QDkCnPr5p739nfEBCUYwYlp/muuYZrt2FUe xKu4cdV8kjXXGW0gUm3++yP98= Received: from computer (unknown []) by gzga-smtp-mtada-g1-0 (Coremail) with SMTP id _____wD3_2JM0A1qNByPCQ--.11347S4; Wed, 20 May 2026 23:16:29 +0800 (CST) From: weixiansen574 To: netdev@vger.kernel.org Cc: kuba@kernel.org, avinash.duduskar@gmail.com, linux-kernel@vger.kernel.org, weixiansen574 Subject: [PATCH] net: sfp: add quirk for OEM 2.5G optical modules Date: Wed, 20 May 2026 23:16:29 +0800 Message-ID: <20260520151629.905-1-weixiansen574@163.com> X-Mailer: git-send-email 2.54.0.windows.1 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-CM-TRANSID: _____wD3_2JM0A1qNByPCQ--.11347S4 X-Coremail-Antispam: 1Uf129KBjvJXoWxJr1UWw45trykAF4kJw1kKrg_yoW8GF4UpF W5Cw1S9F93tF1Sya18Aw4DCFyrWa47AFyFgry2k3yruw45u3W8Z3WYqFyrtr1DZrs7GFWD GrsxGFyfAr90kr7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0zRBc_-UUUUU= X-CM-SenderInfo: xzhl5xpdqvv0qvxuqiywtou0bp/xtbC2w0l7GoN0E0WiAAA37 Content-Type: text/plain; charset="utf-8" Some OEM-branded SFP modules are incorrectly detected as 1000Base-X and fail to establish link on 2.5G-capable ports. These modules do not properly advertise 2500Base-X capability in their EEPROM and require forcing the correct SerDes mode. Add sfp_quirk_2500basex for: - OEM SFP-2.5G-LH20-A - OEM SFP-2.5G-LH03-B Both modules report: Vendor name: OEM Vendor PN: SFP-2.5G-LH20-A / SFP-2.5G-LH03-B Tested on OpenWrt with successful 2.5G link establishment. Signed-off-by: weixiansen574 --- drivers/net/phy/sfp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index bd970f753..6f3213793 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -583,6 +583,8 @@ static const struct sfp_quirk sfp_quirks[] =3D { SFP_QUIRK_S("OEM", "SFP-2.5G-T", sfp_quirk_oem_2_5g), SFP_QUIRK_S("OEM", "SFP-2.5G-BX10-D", sfp_quirk_2500basex), SFP_QUIRK_S("OEM", "SFP-2.5G-BX10-U", sfp_quirk_2500basex), + SFP_QUIRK_S("OEM", "SFP-2.5G-LH20-A", sfp_quirk_2500basex), + SFP_QUIRK_S("OEM", "SFP-2.5G-LH03-B", sfp_quirk_2500basex), SFP_QUIRK_F("OEM", "RTSFP-10", sfp_fixup_rollball_cc), SFP_QUIRK_F("OEM", "RTSFP-10G", sfp_fixup_rollball_cc), SFP_QUIRK_F("Turris", "RTSFP-2.5G", sfp_fixup_rollball), --=20 2.54.0.windows.1