From patchwork Wed Jan 6 15:37:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Pali_Roh=C3=A1r?= X-Patchwork-Id: 12001921 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0AB6EC433E9 for ; Wed, 6 Jan 2021 15:39:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B9F032310D for ; Wed, 6 Jan 2021 15:39:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727226AbhAFPja (ORCPT ); Wed, 6 Jan 2021 10:39:30 -0500 Received: from mail.kernel.org ([198.145.29.99]:41924 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726165AbhAFPj1 (ORCPT ); Wed, 6 Jan 2021 10:39:27 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9A43F23121; Wed, 6 Jan 2021 15:38:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1609947526; bh=17tJUBRoR9N7Dis3fpYvNsowe4Tvb8Y31WB2QigVwX4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sae8kcBYdz5xHk5oYcoSeIjsRjHA8Y26R+y8w66wJ+TqFvOABh1Yq/bdNojzyrek3 kSNv5fb2CiwyjOpHxNw0tqlRdUaA4AAiVmn+fxVbqoHd9ruj5a4sdJzE4jVLpcyCQ7 NBOH/yCZB0GVN/HbhmvYqeuD8W1HwTMJLTTUUK5DQbAPn7+q0QRzyq1lhOUEmCNsW1 2PiFbH2U7MwYz8VqPab3Xbe4viB1N5KVFCg32m6elk7SZmj6kBkRuXfYVlHnpLcspN RgvnkEs9nBkA/XX10AqaDblke4WP0WOqxCgVfd3dipm2nRZPy2Rh1LmtYVUJMH5Gvv rClYmJ35Uddjw== Received: by pali.im (Postfix) id E50FB44E; Wed, 6 Jan 2021 16:38:44 +0100 (CET) From: =?utf-8?q?Pali_Roh=C3=A1r?= To: Russell King - ARM Linux admin , Andrew Lunn , "David S. Miller" , Jakub Kicinski Cc: Thomas Schreiber , Heiner Kallweit , =?utf-8?q?Marek_Beh=C3=BAn?= , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/3] net: sfp: add mode quirk for GPON module Ubiquiti U-Fiber Instant Date: Wed, 6 Jan 2021 16:37:49 +0100 Message-Id: <20210106153749.6748-4-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210106153749.6748-1-pali@kernel.org> References: <20201230154755.14746-1-pali@kernel.org> <20210106153749.6748-1-pali@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored nonsense information. It claims that support all transceiver types including 10G Ethernet which is not truth. So clear all claimed modes and set only one mode which module supports: 1000baseX_Full. Also this module have set SFF phys_id in its EEPROM. Kernel SFP subsustem currently does not allow to use SFP modules detected as SFF. Therefore add and exception for this module so it can be detected as supported. This change finally allows to detect and use SFP GPON module Ubiquiti U-Fiber Instant on Linux system. EEPROM content of this SFP module is (where XX is serial number): 00: 02 04 0b ff ff ff ff ff ff ff ff 03 0c 00 14 c8 ???........??.?? 10: 00 00 00 00 55 42 4e 54 20 20 20 20 20 20 20 20 ....UBNT 20: 20 20 20 20 00 18 e8 29 55 46 2d 49 4e 53 54 41 .??)UF-INSTA 30: 4e 54 20 20 20 20 20 20 34 20 20 20 05 1e 00 36 NT 4 ??.6 40: 00 06 00 00 55 42 4e 54 XX XX XX XX XX XX XX XX .?..UBNTXXXXXXXX 50: 20 20 20 20 31 34 30 31 32 33 20 20 60 80 02 41 140123 `??A Signed-off-by: Pali Rohár Reviewed-by: Andrew Lunn --- Changes in v2: * add this module also into sfp_module_supported() function --- drivers/net/phy/sfp-bus.c | 15 +++++++++++++++ drivers/net/phy/sfp.c | 17 +++++++++++++++-- 2 files changed, 30 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c index 20b91f5dfc6e..4cf874fb5c5b 100644 --- a/drivers/net/phy/sfp-bus.c +++ b/drivers/net/phy/sfp-bus.c @@ -44,6 +44,17 @@ static void sfp_quirk_2500basex(const struct sfp_eeprom_id *id, phylink_set(modes, 2500baseX_Full); } +static void sfp_quirk_ubnt_uf_instant(const struct sfp_eeprom_id *id, + unsigned long *modes) +{ + /* Ubiquiti U-Fiber Instant module claims that support all transceiver + * types including 10G Ethernet which is not truth. So clear all claimed + * modes and set only one mode which module supports: 1000baseX_Full. + */ + phylink_zero(modes); + phylink_set(modes, 1000baseX_Full); +} + static const struct sfp_quirk sfp_quirks[] = { { // Alcatel Lucent G-010S-P can operate at 2500base-X, but @@ -63,6 +74,10 @@ static const struct sfp_quirk sfp_quirks[] = { .vendor = "HUAWEI", .part = "MA5671A", .modes = sfp_quirk_2500basex, + }, { + .vendor = "UBNT", + .part = "UF-INSTANT", + .modes = sfp_quirk_ubnt_uf_instant, }, }; diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 15fb8f7dfe5b..c3a0dcc737fd 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -273,8 +273,21 @@ static const struct sff_data sff_data = { static bool sfp_module_supported(const struct sfp_eeprom_id *id) { - return id->base.phys_id == SFF8024_ID_SFP && - id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP; + if (id->base.phys_id == SFF8024_ID_SFP && + id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP) + return true; + + /* SFP GPON module Ubiquiti U-Fiber Instant has in its EEPROM stored + * phys id SFF instead of SFP. Therefore mark this module explicitly + * as supported based on vendor name and pn match. + */ + if (id->base.phys_id == SFF8024_ID_SFF_8472 && + id->base.phys_ext_id == SFP_PHYS_EXT_ID_SFP && + !memcmp(id->base.vendor_name, "UBNT ", 16) && + !memcmp(id->base.vendor_pn, "UF-INSTANT ", 16)) + return true; + + return false; } static const struct sff_data sfp_data = {