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| author |   Aya Levin <ayal@mellanox.com> | 2019-07-23 11:46:02 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2019-08-20 13:08:18 -0700 |
| commit | 26aa7ab10f15ca24a9564d802ed63006775126d5 (patch) | |
| tree | 8e0a848f99a6e930e980bda6b643cc362188d01d /Documentation/networking/device_drivers | |
| parent | net/mlx5e: Report and recover from CQE with error on RQ (diff) | |
| download | linux-dev-26aa7ab10f15ca24a9564d802ed63006775126d5.tar.xz linux-dev-26aa7ab10f15ca24a9564d802ed63006775126d5.zip | |
Documentation: net: mlx5: Devlink health documentation updates
Add documentation for devlink health rx reporter supported by mlx5.
Update tx reporter documentation.
Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'Documentation/networking/device_drivers')
| -rw-r--r-- | Documentation/networking/device_drivers/mellanox/mlx5.rst | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/Documentation/networking/device_drivers/mellanox/mlx5.rst b/Documentation/networking/device_drivers/mellanox/mlx5.rst index 214325897732..cfda464e52de 100644 --- a/Documentation/networking/device_drivers/mellanox/mlx5.rst +++ b/Documentation/networking/device_drivers/mellanox/mlx5.rst @@ -126,7 +126,7 @@ Devlink health reporters tx reporter ----------- -The tx reporter is responsible of two error scenarios: +The tx reporter is responsible for reporting and recovering of the following two error scenarios: - TX timeout Report on kernel tx timeout detection. @@ -135,7 +135,7 @@ The tx reporter is responsible of two error scenarios: Report on error tx completion. Recover by flushing the TX queue and reset it. -TX reporter also support Diagnose callback, on which it provides +TX reporter also support on demand diagnose callback, on which it provides real time information of its send queues status. User commands examples: @@ -144,11 +144,40 @@ User commands examples: $ devlink health diagnose pci/0000:82:00.0 reporter tx +NOTE: This command has valid output only when interface is up, otherwise the command has empty output. + - Show number of tx errors indicated, number of recover flows ended successfully, is autorecover enabled and graceful period from last recover:: $ devlink health show pci/0000:82:00.0 reporter tx +rx reporter +----------- +The rx reporter is responsible for reporting and recovering of the following two error scenarios: + +- RX queues initialization (population) timeout + RX queues descriptors population on ring initialization is done in + napi context via triggering an irq, in case of a failure to get + the minimum amount of descriptors, a timeout would occur and it + could be recoverable by polling the EQ (Event Queue). +- RX completions with errors (reported by HW on interrupt context) + Report on rx completion error. + Recover (if needed) by flushing the related queue and reset it. + +RX reporter also supports on demand diagnose callback, on which it +provides real time information of its receive queues status. + +- Diagnose rx queues status, and corresponding completion queue:: + + $ devlink health diagnose pci/0000:82:00.0 reporter rx + +NOTE: This command has valid output only when interface is up, otherwise the command has empty output. + +- Show number of rx errors indicated, number of recover flows ended successfully, + is autorecover enabled and graceful period from last recover:: + + $ devlink health show pci/0000:82:00.0 reporter rx + fw reporter ----------- The fw reporter implements diagnose and dump callbacks. |