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| author | Rahul Rameshbabu <rrameshbabu@nvidia.com> | 2023-08-08 21:10:21 -0700 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-08-14 14:40:20 -0700 |
| commit | 53b836a44db4259b94ffcfff321fb3d63f976b76 (patch) | |
| tree | a4ecb2462bb2fd669c0ceb0ab4af4a0ab2270882 /Documentation/networking | |
| parent | 3178308ad4ca38955cad684d235153d4939f1fcd (diff) | |
| download | linux-53b836a44db4259b94ffcfff321fb3d63f976b76.tar.gz | |
net/mlx5e: Add recovery flow for tx devlink health reporter for unhealthy PTP SQ
A new check for the tx devlink health reporter is introduced for
determining when the PTP port timestamping SQ is considered unhealthy. If
there are enough CQEs considered never to be delivered, the space that can
be utilized on the SQ decreases significantly, impacting performance and
usability of the SQ. The health reporter is triggered when the number of
likely never delivered port timestamping CQEs that utilize the space of the
PTP SQ is greater than 93.75% of the total capacity of the SQ. A devlink
health reporter recover method is also provided for this specific TX error
context that restarts the PTP SQ.
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/devlink/mlx5.rst | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/networking/devlink/mlx5.rst b/Documentation/networking/devlink/mlx5.rst index 196a4bb28df1ee..702f204a3dbd35 100644 --- a/Documentation/networking/devlink/mlx5.rst +++ b/Documentation/networking/devlink/mlx5.rst @@ -135,7 +135,7 @@ Health reporters tx reporter ----------- -The tx reporter is responsible for reporting and recovering of the following two error scenarios: +The tx reporter is responsible for reporting and recovering of the following three error scenarios: - tx timeout Report on kernel tx timeout detection. @@ -143,6 +143,9 @@ The tx reporter is responsible for reporting and recovering of the following two - tx error completion Report on error tx completion. Recover by flushing the tx queue and reset it. +- tx PTP port timestamping CQ unhealthy + Report too many CQEs never delivered on port ts CQ. + Recover by flushing and re-creating all PTP channels. tx reporter also support on demand diagnose callback, on which it provides real time information of its send queues status. |