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authorDmytro Linkin <dlinkin@nvidia.com>2021-06-01 13:24:00 +0300
committerSaeed Mahameed <saeedm@nvidia.com>2021-08-20 07:50:41 +0300
commit3202ea65f85c5488926e01aa51d73d53dfe17e6e (patch)
tree70d86a6a57af02cefe169f45e6fe4d9c1a76cb64 /Documentation
parent0fe132eac38cf20fc584c7537e62a11415788269 (diff)
downloadlinux-3202ea65f85c5488926e01aa51d73d53dfe17e6e.tar.xz
net/mlx5: E-switch, Add QoS tracepoints
Add tracepoints to log QoS enabling/disabling/configuration for vports and rate groups. Signed-off-by: Dmytro Linkin <dlinkin@nvidia.com> Reviewed-by: Huy Nguyen <huyn@nvidia.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst44
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst
index ef8cb62e82a1..4b59cf2c599f 100644
--- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst
@@ -656,3 +656,47 @@ Bridge offloads tracepoints:
$ cat /sys/kernel/debug/tracing/trace
...
ip-5387 [000] ...1 573713: mlx5_esw_bridge_vport_cleanup: vport_num=1
+
+Eswitch QoS tracepoints:
+
+- mlx5_esw_vport_qos_create: trace creation of transmit scheduler arbiter for vport::
+
+ $ echo mlx5:mlx5_esw_vport_qos_create >> /sys/kernel/debug/tracing/set_event
+ $ cat /sys/kernel/debug/tracing/trace
+ ...
+ <...>-23496 [018] .... 73136.838831: mlx5_esw_vport_qos_create: (0000:82:00.0) vport=2 tsar_ix=4 bw_share=0, max_rate=0 group=000000007b576bb3
+
+- mlx5_esw_vport_qos_config: trace configuration of transmit scheduler arbiter for vport::
+
+ $ echo mlx5:mlx5_esw_vport_qos_config >> /sys/kernel/debug/tracing/set_event
+ $ cat /sys/kernel/debug/tracing/trace
+ ...
+ <...>-26548 [023] .... 75754.223823: mlx5_esw_vport_qos_config: (0000:82:00.0) vport=1 tsar_ix=3 bw_share=34, max_rate=10000 group=000000007b576bb3
+
+- mlx5_esw_vport_qos_destroy: trace deletion of transmit scheduler arbiter for vport::
+
+ $ echo mlx5:mlx5_esw_vport_qos_destroy >> /sys/kernel/debug/tracing/set_event
+ $ cat /sys/kernel/debug/tracing/trace
+ ...
+ <...>-27418 [004] .... 76546.680901: mlx5_esw_vport_qos_destroy: (0000:82:00.0) vport=1 tsar_ix=3
+
+- mlx5_esw_group_qos_create: trace creation of transmit scheduler arbiter for rate group::
+
+ $ echo mlx5:mlx5_esw_group_qos_create >> /sys/kernel/debug/tracing/set_event
+ $ cat /sys/kernel/debug/tracing/trace
+ ...
+ <...>-26578 [008] .... 75776.022112: mlx5_esw_group_qos_create: (0000:82:00.0) group=000000008dac63ea tsar_ix=5
+
+- mlx5_esw_group_qos_config: trace configuration of transmit scheduler arbiter for rate group::
+
+ $ echo mlx5:mlx5_esw_group_qos_config >> /sys/kernel/debug/tracing/set_event
+ $ cat /sys/kernel/debug/tracing/trace
+ ...
+ <...>-27303 [020] .... 76461.455356: mlx5_esw_group_qos_config: (0000:82:00.0) group=000000008dac63ea tsar_ix=5 bw_share=100 max_rate=20000
+
+- mlx5_esw_group_qos_destroy: trace deletion of transmit scheduler arbiter for group::
+
+ $ echo mlx5:mlx5_esw_group_qos_destroy >> /sys/kernel/debug/tracing/set_event
+ $ cat /sys/kernel/debug/tracing/trace
+ ...
+ <...>-27418 [006] .... 76547.187258: mlx5_esw_group_qos_destroy: (0000:82:00.0) group=000000007b576bb3 tsar_ix=1