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| author | Vlad Buslov <vladbu@mellanox.com> | 2019-06-25 22:40:20 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2019-08-22 01:55:18 +0300 |
| commit | 5970882a2510e8bffaef518a82ea207798187a93 (patch) | |
| tree | e15858334dae586ce697472ef1a7a3628da45332 /Documentation/networking | |
| parent | c786fe596bede275f887f212eebee74490043b84 (diff) | |
| download | linux-5970882a2510e8bffaef518a82ea207798187a93.tar.xz | |
net/mlx5e: Add trace point for neigh update
Allow tracing neigh state during neigh update task that is executed on
workqueue and is scheduled by neigh state change event.
Usage example:
># cd /sys/kernel/debug/tracing
># echo mlx5:mlx5e_rep_neigh_update >> set_event
># cat trace
...
kworker/u48:7-2221 [009] ...1 1475.387435: mlx5e_rep_neigh_update:
netdev: ens1f0 MAC: 24:8a:07:9a:17:9a IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_connected=1
Added corresponding documentation in
Documentation/networking/device-driver/mellanox/mlx5.rst
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Dmytro Linkin <dmitrolin@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/device_drivers/mellanox/mlx5.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/networking/device_drivers/mellanox/mlx5.rst b/Documentation/networking/device_drivers/mellanox/mlx5.rst index b2f21ce9b090..b30a63dbf4b7 100644 --- a/Documentation/networking/device_drivers/mellanox/mlx5.rst +++ b/Documentation/networking/device_drivers/mellanox/mlx5.rst @@ -258,3 +258,10 @@ tc and eswitch offloads tracepoints: $ cat /sys/kernel/debug/tracing/trace ... kworker/u48:4-8806 [009] ...1 55117.882428: mlx5e_tc_update_neigh_used_value: netdev: ens1f0 IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_used=1 + +- mlx5e_rep_neigh_update: trace neigh update tasks scheduled due to neigh state change events:: + + $ echo mlx5:mlx5e_rep_neigh_update >> /sys/kernel/debug/tracing/set_event + $ cat /sys/kernel/debug/tracing/trace + ... + kworker/u48:7-2221 [009] ...1 1475.387435: mlx5e_rep_neigh_update: netdev: ens1f0 MAC: 24:8a:07:9a:17:9a IPv4: 1.1.1.10 IPv6: ::ffff:1.1.1.10 neigh_connected=1 |