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| author | Dmytro Linkin <dmitrolin@mellanox.com> | 2019-06-27 12:55:02 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2019-08-22 00:55:17 +0200 |
| commit | 7a978759b4e0e7a2ad3f10cbf9077915a85ec956 (patch) | |
| tree | a3bdf4b07db1f3546098d1fe4c24443e3beadc0d /Documentation/networking/device_drivers | |
| parent | net/mlx5e: Only access fully initialized flows in neigh update (diff) | |
| download | linux-7a978759b4e0e7a2ad3f10cbf9077915a85ec956.tar.xz linux-7a978759b4e0e7a2ad3f10cbf9077915a85ec956.zip | |
net/mlx5e: Add tc flower tracepoints
Implemented following tracepoints:
1. Configure flower (mlx5e_configure_flower)
2. Delete flower (mlx5e_delete_flower)
3. Stats flower (mlx5e_stats_flower)
Usage example:
># cd /sys/kernel/debug/tracing
># echo mlx5:mlx5e_configure_flower >> set_event
># cat trace
...
tc-6535 [019] ...1 2672.404466: mlx5e_configure_flower: cookie=0000000067874a55 actions= REDIRECT
Added corresponding documentation in
Documentation/networking/device-driver/mellanox/mlx5.rst
Signed-off-by: Dmytro Linkin <dmitrolin@mellanox.com>
Reviewed-by: Vlad Buslov <vladbu@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 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/networking/device_drivers/mellanox/mlx5.rst b/Documentation/networking/device_drivers/mellanox/mlx5.rst index cfda464e52de..1339dbf52431 100644 --- a/Documentation/networking/device_drivers/mellanox/mlx5.rst +++ b/Documentation/networking/device_drivers/mellanox/mlx5.rst @@ -12,6 +12,7 @@ Contents - `Enabling the driver and kconfig options`_ - `Devlink info`_ - `Devlink health reporters`_ +- `mlx5 tracepoints`_ Enabling the driver and kconfig options ================================================ @@ -219,3 +220,34 @@ User commands examples: $ devlink health dump show pci/0000:82:00.1 reporter fw_fatal NOTE: This command can run only on PF. + +mlx5 tracepoints +================ + +mlx5 driver provides internal trace points for tracking and debugging using +kernel tracepoints interfaces (refer to Documentation/trace/ftrase.rst). + +For the list of support mlx5 events check /sys/kernel/debug/tracing/events/mlx5/ + +tc and eswitch offloads tracepoints: + +- mlx5e_configure_flower: trace flower filter actions and cookies offloaded to mlx5:: + + $ echo mlx5:mlx5e_configure_flower >> /sys/kernel/debug/tracing/set_event + $ cat /sys/kernel/debug/tracing/trace + ... + tc-6535 [019] ...1 2672.404466: mlx5e_configure_flower: cookie=0000000067874a55 actions= REDIRECT + +- mlx5e_delete_flower: trace flower filter actions and cookies deleted from mlx5:: + + $ echo mlx5:mlx5e_delete_flower >> /sys/kernel/debug/tracing/set_event + $ cat /sys/kernel/debug/tracing/trace + ... + tc-6569 [010] .N.1 2686.379075: mlx5e_delete_flower: cookie=0000000067874a55 actions= NULL + +- mlx5e_stats_flower: trace flower stats request:: + + $ echo mlx5:mlx5e_stats_flower >> /sys/kernel/debug/tracing/set_event + $ cat /sys/kernel/debug/tracing/trace + ... + tc-6546 [010] ...1 2679.704889: mlx5e_stats_flower: cookie=0000000060eb3d6a bytes=0 packets=0 lastused=4295560217 |