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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shyam Sundar S K Subject: [PATCH net 2/2] net: amd-xgbe: Check only the minimum speed for active/passive cables Date: Thu, 8 Dec 2022 10:22:25 -0600 Message-ID: <852265b14d35ee1e508b71d814f7532d12d5cf14.1670516545.git.thomas.lendacky@amd.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT011:EE_|CH0PR12MB5283:EE_ X-MS-Office365-Filtering-Correlation-Id: 071a3503-8764-4bf2-b69b-08dad938dcc5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230022)(4636009)(376002)(396003)(136003)(39860400002)(346002)(451199015)(36840700001)(40470700004)(46966006)(7696005)(478600001)(82310400005)(41300700001)(5660300002)(36756003)(8936002)(316002)(110136005)(54906003)(70206006)(70586007)(8676002)(86362001)(4326008)(36860700001)(356005)(40480700001)(81166007)(40460700003)(82740400003)(2616005)(336012)(186003)(16526019)(26005)(83380400001)(426003)(47076005)(2906002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Dec 2022 16:25:47.1218 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 071a3503-8764-4bf2-b69b-08dad938dcc5 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT011.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR12MB5283 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1751664348778616854?= X-GMAIL-MSGID: =?utf-8?q?1751664348778616854?= There are cables that exist that can support speeds in excess of 10GbE. The driver, however, restricts the EEPROM advertised nominal bitrate to a specific range, which can prevent usage of cables that can support, for example, up to 25GbE. Rather than checking that an active or passive cable supports a specific range, only check for a minimum supported speed. Fixes: abf0a1c2b26a ("amd-xgbe: Add support for SFP+ modules") Signed-off-by: Tom Lendacky --- drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c index 868a768f424c..c731a04731f8 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c @@ -237,10 +237,7 @@ enum xgbe_sfp_speed { #define XGBE_SFP_BASE_BR 12 #define XGBE_SFP_BASE_BR_1GBE_MIN 0x0a -#define XGBE_SFP_BASE_BR_1GBE_MAX 0x0d #define XGBE_SFP_BASE_BR_10GBE_MIN 0x64 -#define XGBE_SFP_BASE_BR_10GBE_MAX 0x68 -#define XGBE_MOLEX_SFP_BASE_BR_10GBE_MAX 0x78 #define XGBE_SFP_BASE_CU_CABLE_LEN 18 @@ -827,29 +824,22 @@ static void xgbe_phy_sfp_phy_settings(struct xgbe_prv_data *pdata) static bool xgbe_phy_sfp_bit_rate(struct xgbe_sfp_eeprom *sfp_eeprom, enum xgbe_sfp_speed sfp_speed) { - u8 *sfp_base, min, max; + u8 *sfp_base, min; sfp_base = sfp_eeprom->base; switch (sfp_speed) { case XGBE_SFP_SPEED_1000: min = XGBE_SFP_BASE_BR_1GBE_MIN; - max = XGBE_SFP_BASE_BR_1GBE_MAX; break; case XGBE_SFP_SPEED_10000: min = XGBE_SFP_BASE_BR_10GBE_MIN; - if (memcmp(&sfp_eeprom->base[XGBE_SFP_BASE_VENDOR_NAME], - XGBE_MOLEX_VENDOR, XGBE_SFP_BASE_VENDOR_NAME_LEN) == 0) - max = XGBE_MOLEX_SFP_BASE_BR_10GBE_MAX; - else - max = XGBE_SFP_BASE_BR_10GBE_MAX; break; default: return false; } - return ((sfp_base[XGBE_SFP_BASE_BR] >= min) && - (sfp_base[XGBE_SFP_BASE_BR] <= max)); + return sfp_base[XGBE_SFP_BASE_BR] >= min; } static void xgbe_phy_free_phy_device(struct xgbe_prv_data *pdata)