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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jonathan Corbet , Richard Cochran , Tariq Toukan , Gal Pressman , Vadim Fedorenko , Andrew Lunn , Heiner Kallweit , Przemek Kitszel , Ahmed Zaki , Alexander Lobakin , Hangbin Liu , Paul Greenwalt , Justin Stitt , Randy Dunlap , Maxime Chevallier , Kory Maincent , Wojciech Drewek , Vladimir Oltean , Jiri Pirko , Jacob Keller , Alexandre Torgue , Jose Abreu , Dragos Tatulea Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Rahul Rameshbabu , Saeed Mahameed Subject: [PATCH RFC net-next v1 2/6] net/mlx5e: Introduce lost_cqe statistic counter for PTP Tx port timestamping CQ Date: Fri, 23 Feb 2024 11:24:46 -0800 Message-ID: <20240223192658.45893-3-rrameshbabu@nvidia.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20240223192658.45893-1-rrameshbabu@nvidia.com> References: <20240223192658.45893-1-rrameshbabu@nvidia.com> X-ClientProxiedBy: BYAPR01CA0057.prod.exchangelabs.com (2603:10b6:a03:94::34) To BYAPR12MB2743.namprd12.prod.outlook.com (2603:10b6:a03:61::28) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BYAPR12MB2743:EE_|BN9PR12MB5226:EE_ X-MS-Office365-Filtering-Correlation-Id: 005d94bf-537b-48ab-7fbd-08dc34a57319 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:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BYAPR12MB2743.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(921011);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 005d94bf-537b-48ab-7fbd-08dc34a57319 X-MS-Exchange-CrossTenant-AuthSource: BYAPR12MB2743.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Feb 2024 19:27:18.6723 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: w5D8LlTMd6iFLaf9faTXN/hya2FAkKbZUQ4M/RpO8EcpXl7z6ZYBRyKhPmmDf/0zy6H4+u8NSNuu6vsUCN6Tfg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN9PR12MB5226 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791719104687003802 X-GMAIL-MSGID: 1791719104687003802 Track the number of times a CQE was expected to not be delivered on PTP Tx port timestamping CQ. A CQE is expected to not be delivered if a certain amount of time passes since the corresponding CQE containing the DMA timestamp information has arrived. Increment the late_cqe counter when such a CQE does manage to be delivered to the CQ. Signed-off-by: Rahul Rameshbabu Reviewed-by: Tariq Toukan Reviewed-by: Dragos Tatulea Signed-off-by: Saeed Mahameed --- .../device_drivers/ethernet/mellanox/mlx5/counters.rst | 6 ++++++ drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c | 1 + drivers/net/ethernet/mellanox/mlx5/core/en_stats.c | 1 + drivers/net/ethernet/mellanox/mlx5/core/en_stats.h | 1 + 4 files changed, 9 insertions(+) diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst index f69ee1ebee01..5464cd9e2694 100644 --- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst +++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst @@ -702,6 +702,12 @@ the software port. the device typically ensures not posting the CQE. - Error + * - `ptp_cq[i]_lost_cqe` + - Number of times a CQE is expected to not be delivered on the PTP + timestamping CQE by the device due to a time delta elapsing. If such a + CQE is somehow delivered, `ptp_cq[i]_late_cqe` is incremented. + - Error + .. [#ring_global] The corresponding ring and global counters do not share the same name (i.e. do not follow the common naming scheme). diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c index fd4ef6431142..1dd4bf7f7dbe 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c @@ -169,6 +169,7 @@ static void mlx5e_ptpsq_mark_ts_cqes_undelivered(struct mlx5e_ptpsq *ptpsq, WARN_ON_ONCE(!pos->inuse); pos->inuse = false; list_del(&pos->entry); + ptpsq->cq_stats->lost_cqe++; } spin_unlock(&cqe_list->tracker_list_lock); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c index 4b96ad657145..7e63d7c88894 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c @@ -2158,6 +2158,7 @@ static const struct counter_desc ptp_cq_stats_desc[] = { { MLX5E_DECLARE_PTP_CQ_STAT(struct mlx5e_ptp_cq_stats, abort) }, { MLX5E_DECLARE_PTP_CQ_STAT(struct mlx5e_ptp_cq_stats, abort_abs_diff_ns) }, { MLX5E_DECLARE_PTP_CQ_STAT(struct mlx5e_ptp_cq_stats, late_cqe) }, + { MLX5E_DECLARE_PTP_CQ_STAT(struct mlx5e_ptp_cq_stats, lost_cqe) }, }; static const struct counter_desc ptp_rq_stats_desc[] = { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h index 12b3607afecd..03f6265d3ed5 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h @@ -461,6 +461,7 @@ struct mlx5e_ptp_cq_stats { u64 abort; u64 abort_abs_diff_ns; u64 late_cqe; + u64 lost_cqe; }; struct mlx5e_rep_stats {