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Tue, 10 Aug 2021 13:24:40 +0000 Received: from sw-mtx-036.mtx.labs.mlnx (172.20.187.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 10 Aug 2021 13:24:38 +0000 From: Parav Pandit To: , , CC: , , Parav Pandit , Jiri Pirko , "Leon Romanovsky" Subject: [PATCH RESEND net-next 02/10] devlink: Add new "enable_rdma" generic device param Date: Tue, 10 Aug 2021 16:24:16 +0300 Message-ID: <20210810132424.9129-3-parav@nvidia.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210810132424.9129-1-parav@nvidia.com> References: <20210810132424.9129-1-parav@nvidia.com> MIME-Version: 1.0 X-Originating-IP: [172.20.187.5] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To HQMAIL107.nvidia.com (172.20.187.13) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 85ef2907-353d-4187-3181-08d95c02354d X-MS-TrafficTypeDiagnostic: MW2PR12MB2393: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6430; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2021 13:24:40.2407 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 85ef2907-353d-4187-3181-08d95c02354d X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.112.34];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT017.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR12MB2393 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Add new device generic parameter to enable/disable creation of RDMA auxiliary device and associated device functionality in the devlink instance. User who prefers to disable such functionality can disable it using below example. $ devlink dev param set pci/0000:06:00.0 \ name enable_rdma value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device for the RDMA functionality. Signed-off-by: Parav Pandit Reviewed-by: Jiri Pirko Reviewed-by: Leon Romanovsky --- Documentation/networking/devlink/devlink-params.rst | 4 ++++ include/net/devlink.h | 4 ++++ net/core/devlink.c | 5 +++++ 3 files changed, 13 insertions(+) diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst index 219c1272f2d6..a49da0b049b6 100644 --- a/Documentation/networking/devlink/devlink-params.rst +++ b/Documentation/networking/devlink/devlink-params.rst @@ -101,6 +101,10 @@ own name. - Boolean - When enabled, the device driver will instantiate Ethernet specific auxiliary device of the devlink device. + * - ``enable_rdma`` + - Boolean + - When enabled, the device driver will instantiate RDMA specific + auxiliary device of the devlink device. * - ``internal_err_reset`` - Boolean - When enabled, the device driver will reset the device on internal diff --git a/include/net/devlink.h b/include/net/devlink.h index 1e3e183bb2c2..6f4f0416e598 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -520,6 +520,7 @@ enum devlink_param_generic_id { DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, + DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, /* add new param generic ids above here*/ __DEVLINK_PARAM_GENERIC_ID_MAX, @@ -563,6 +564,9 @@ enum devlink_param_generic_id { #define DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME "enable_eth" #define DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE DEVLINK_PARAM_TYPE_BOOL +#define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME "enable_rdma" +#define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE DEVLINK_PARAM_TYPE_BOOL + #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \ { \ .id = DEVLINK_PARAM_GENERIC_ID_##_id, \ diff --git a/net/core/devlink.c b/net/core/devlink.c index 9a59f45c8bf9..b68d6921d34f 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -4282,6 +4282,11 @@ static const struct devlink_param devlink_param_generic[] = { .name = DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME, .type = DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE, }, + { + .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, + .name = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME, + .type = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE, + }, }; static int devlink_param_generic_verify(const struct devlink_param *param)