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Miller" , Jakub Kicinski CC: , , , , Shay Drory , Moshe Shemesh Subject: [PATCH net-next v2 3/6] devlink: Add new "event_eq_size" generic device param Date: Wed, 8 Dec 2021 09:00:03 +0200 Message-ID: <20211208070006.13100-4-shayd@nvidia.com> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20211208070006.13100-1-shayd@nvidia.com> References: <20211208070006.13100-1-shayd@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [172.20.187.5] X-ClientProxiedBy: HQMAIL107.nvidia.com (172.20.187.13) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 69ab7de1-6a43-4cde-2616-08d9ba186c64 X-MS-TrafficTypeDiagnostic: BN6PR12MB1186:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1751; 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:203.18.50.12;CTRY:HK;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:hkhybrid01.nvidia.com;CAT:NONE;SFS:(4636009)(36840700001)(46966006)(40470700001)(36756003)(70586007)(83380400001)(508600001)(186003)(6666004)(70206006)(82310400004)(8676002)(107886003)(2906002)(1076003)(40460700001)(7636003)(4326008)(2616005)(16526019)(426003)(5660300002)(54906003)(110136005)(356005)(34070700002)(47076005)(26005)(36860700001)(86362001)(336012)(8936002)(316002)(41533002);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Dec 2021 07:00:30.5589 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 69ab7de1-6a43-4cde-2616-08d9ba186c64 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[203.18.50.12];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT021.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR12MB1186 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add new device generic parameter to determine the size of the asynchronous control events EQ. For example, to reduce event EQ size to 64, execute: $ devlink dev param set pci/0000:06:00.0 \ name event_eq_size value 64 cmode driverinit $ devlink dev reload pci/0000:06:00.0 Signed-off-by: Shay Drory Reviewed-by: Moshe Shemesh --- Documentation/networking/devlink/devlink-params.rst | 3 +++ include/net/devlink.h | 4 ++++ net/core/devlink.c | 5 +++++ 3 files changed, 12 insertions(+) diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst index cd9342305a13..0eddee6e66f3 100644 --- a/Documentation/networking/devlink/devlink-params.rst +++ b/Documentation/networking/devlink/devlink-params.rst @@ -132,3 +132,6 @@ own name. * - ``io_eq_size`` - u16 - Control the size of I/O completion EQs. + * - ``event_eq_size`` + - u16 + - Control the size of asynchronous control events EQ. diff --git a/include/net/devlink.h b/include/net/devlink.h index 61efa45b8786..99b06740a918 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -460,6 +460,7 @@ enum devlink_param_generic_id { DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP, DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE, + DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, /* add new param generic ids above here*/ __DEVLINK_PARAM_GENERIC_ID_MAX, @@ -515,6 +516,9 @@ enum devlink_param_generic_id { #define DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME "io_eq_size" #define DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE DEVLINK_PARAM_TYPE_U16 +#define DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME "event_eq_size" +#define DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE DEVLINK_PARAM_TYPE_U16 + #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 0d4e63d11585..d9f3c994e704 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -4471,6 +4471,11 @@ static const struct devlink_param devlink_param_generic[] = { .name = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME, .type = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE, }, + { + .id = DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, + .name = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME, + .type = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE, + }, }; static int devlink_param_generic_verify(const struct devlink_param *param) -- 2.21.3