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Miller" , Jakub Kicinski , Andrew Lunn , Adrian Pop , "Michal Kubecek" , Don Bollinger , CC: Vladyslav Tarasiuk , Moshe Shemesh Subject: [RFC PATCH V4 net-next 3/5] net/mlx5: Implement get_module_eeprom_by_page() Date: Mon, 22 Mar 2021 19:11:13 +0200 Message-ID: <1616433075-27051-4-git-send-email-moshe@nvidia.com> X-Mailer: git-send-email 1.8.4.3 In-Reply-To: <1616433075-27051-1-git-send-email-moshe@nvidia.com> References: <1616433075-27051-1-git-send-email-moshe@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 3174830e-1cf0-4412-8aaf-08d8ed558f21 X-MS-TrafficTypeDiagnostic: SN1PR12MB2413: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2733; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.112.32;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:schybrid01.nvidia.com;CAT:NONE;SFS:(4636009)(136003)(376002)(396003)(346002)(39860400002)(46966006)(36840700001)(4326008)(47076005)(82310400003)(6666004)(70586007)(336012)(70206006)(7696005)(36756003)(8936002)(86362001)(426003)(8676002)(186003)(26005)(2906002)(83380400001)(107886003)(2616005)(316002)(82740400003)(356005)(54906003)(110136005)(7636003)(478600001)(36860700001)(5660300002);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Mar 2021 17:11:40.1198 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3174830e-1cf0-4412-8aaf-08d8ed558f21 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.112.32];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT067.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR12MB2413 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Vladyslav Tarasiuk Implement ethtool_ops::get_module_eeprom_by_page() to enable support of new SFP standards. Signed-off-by: Vladyslav Tarasiuk --- .../ethernet/mellanox/mlx5/core/en_ethtool.c | 44 +++++++++++++++++++ .../net/ethernet/mellanox/mlx5/core/port.c | 33 ++++++++++++++ include/linux/mlx5/port.h | 2 + 3 files changed, 79 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index abdf721bb264..7f413f7bd1d3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1769,6 +1769,49 @@ static int mlx5e_get_module_eeprom(struct net_device *netdev, return 0; } +static int mlx5e_get_module_eeprom_by_page(struct net_device *netdev, + const struct ethtool_module_eeprom *page_data, + struct netlink_ext_ack *extack) +{ + struct mlx5e_priv *priv = netdev_priv(netdev); + struct mlx5_module_eeprom_query_params query; + struct mlx5_core_dev *mdev = priv->mdev; + u8 *data = page_data->data; + int size_read; + int i = 0; + + if (!page_data->length) + return -EINVAL; + + memset(data, 0, page_data->length); + + query.offset = page_data->offset; + query.i2c_address = page_data->i2c_address; + query.bank = page_data->bank; + query.page = page_data->page; + while (i < page_data->length) { + query.size = page_data->length - i; + size_read = mlx5_query_module_eeprom_by_page(mdev, &query, data + i); + + /* Done reading, return how many bytes was read */ + if (!size_read) + return i; + + if (size_read == -EINVAL) + return -EINVAL; + if (size_read < 0) { + netdev_err(priv->netdev, "%s: mlx5_query_module_eeprom_by_page failed:0x%x\n", + __func__, size_read); + return i; + } + + i += size_read; + query.offset += size_read; + } + + return i; +} + int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv, struct ethtool_flash *flash) { @@ -2148,6 +2191,7 @@ const struct ethtool_ops mlx5e_ethtool_ops = { .set_wol = mlx5e_set_wol, .get_module_info = mlx5e_get_module_info, .get_module_eeprom = mlx5e_get_module_eeprom, + .get_module_eeprom_by_page = mlx5e_get_module_eeprom_by_page, .flash_device = mlx5e_flash_device, .get_priv_flags = mlx5e_get_priv_flags, .set_priv_flags = mlx5e_set_priv_flags, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c index 9b9f870d67a4..114214728e32 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/port.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c @@ -428,6 +428,39 @@ int mlx5_query_module_eeprom(struct mlx5_core_dev *dev, } EXPORT_SYMBOL_GPL(mlx5_query_module_eeprom); +int mlx5_query_module_eeprom_by_page(struct mlx5_core_dev *dev, + struct mlx5_module_eeprom_query_params *params, + u8 *data) +{ + u8 module_id; + int err; + + err = mlx5_query_module_num(dev, ¶ms->module_number); + if (err) + return err; + + err = mlx5_query_module_id(dev, params->module_number, &module_id); + if (err) + return err; + + if (module_id != MLX5_MODULE_ID_SFP && + module_id != MLX5_MODULE_ID_QSFP && + module_id != MLX5_MODULE_ID_QSFP28 && + module_id != MLX5_MODULE_ID_QSFP_PLUS) { + mlx5_core_err(dev, "Module ID not recognized: 0x%x\n", module_id); + return -EINVAL; + } + + if (params->i2c_address != MLX5_I2C_ADDR_HIGH && + params->i2c_address != MLX5_I2C_ADDR_LOW) { + mlx5_core_err(dev, "I2C address not recognized: 0x%x\n", params->i2c_address); + return -EINVAL; + } + + return mlx5_query_mcia(dev, params, data); +} +EXPORT_SYMBOL_GPL(mlx5_query_module_eeprom_by_page); + static int mlx5_query_port_pvlc(struct mlx5_core_dev *dev, u32 *pvlc, int pvlc_size, u8 local_port) { diff --git a/include/linux/mlx5/port.h b/include/linux/mlx5/port.h index 90b87aa82db3..58d56adb9842 100644 --- a/include/linux/mlx5/port.h +++ b/include/linux/mlx5/port.h @@ -209,6 +209,8 @@ void mlx5_query_port_fcs(struct mlx5_core_dev *mdev, bool *supported, bool *enabled); int mlx5_query_module_eeprom(struct mlx5_core_dev *dev, u16 offset, u16 size, u8 *data); +int mlx5_query_module_eeprom_by_page(struct mlx5_core_dev *dev, + struct mlx5_module_eeprom_query_params *params, u8 *data); int mlx5_query_port_dcbx_param(struct mlx5_core_dev *mdev, u32 *out); int mlx5_set_port_dcbx_param(struct mlx5_core_dev *mdev, u32 *in); -- 2.18.2