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Mon, 9 Sep 2024 10:30:49 -0700 From: Michael Guralnik To: CC: , , , , , , "Michael Guralnik" Subject: [PATCH v3 rdma-next 7/7] RDMA/nldev: Expose whether RDMA monitoring is supported Date: Mon, 9 Sep 2024 20:30:25 +0300 Message-ID: <20240909173025.30422-8-michaelgur@nvidia.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20240909173025.30422-1-michaelgur@nvidia.com> References: <20240909173025.30422-1-michaelgur@nvidia.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF00029929:EE_|PH7PR12MB7869:EE_ X-MS-Office365-Filtering-Correlation-Id: c32bfc3d-8621-457b-3f8b-08dcd0f533b3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(1800799024)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Sep 2024 17:31:13.0843 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c32bfc3d-8621-457b-3f8b-08dcd0f533b3 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF00029929.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7869 From: Chiara Meiohas Extend the "rdma sys" command to display whether RDMA monitoring is supported. RDMA monitoring is not supported in mlx4 because it does not use the ib_device_set_netdev() API, which sends the RDMA events. Example output for kernel where monitoring is supported: $ rdma sys show netns shared privileged-qkey off monitor on copy-on-fork on Example output for kernel where monitoring is not supported: $ rdma sys show netns shared privileged-qkey off monitor off copy-on-fork on Signed-off-by: Chiara Meiohas Signed-off-by: Michael Guralnik Reviewed-by: Leon Romanovsky --- drivers/infiniband/core/nldev.c | 6 ++++++ include/uapi/rdma/rdma_netlink.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 30b0fd54a7d3..b2dca6aa531d 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -1952,6 +1952,12 @@ static int nldev_sys_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, nlmsg_free(msg); return err; } + + err = nla_put_u8(msg, RDMA_NLDEV_SYS_ATTR_MONITOR_MODE, 1); + if (err) { + nlmsg_free(msg); + return err; + } /* * Copy-on-fork is supported. * See commits: diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h index 5f9636d26050..39be09c0ffbb 100644 --- a/include/uapi/rdma/rdma_netlink.h +++ b/include/uapi/rdma/rdma_netlink.h @@ -579,6 +579,7 @@ enum rdma_nldev_attr { RDMA_NLDEV_ATTR_EVENT_TYPE, /* u8 */ + RDMA_NLDEV_SYS_ATTR_MONITOR_MODE, /* u8 */ /* * Always the end */