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| author | Bodong Wang <bodong@mellanox.com> | 2019-09-14 00:24:19 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2020-03-14 02:26:01 +0300 |
| commit | 14c844cbf3503076de6e2e48d575216f1600b19f (patch) | |
| tree | 74888c193fc458bf5309f2bdb15abd1b9f7fc5e5 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 86f9453c5fca845ca592777ef8960ff827fc7cc9 (diff) | |
| download | linux-14c844cbf3503076de6e2e48d575216f1600b19f.tar.xz | |
net/mlx5: E-Switch, Hold mutex when querying drop counter in legacy mode
Consider scenario below, CPU 1 is at risk to query already destroyed
drop counters. Need to apply the same state mutex when disabling vport.
+-------------------------------+-------------------------------------+
| CPU 0 | CPU 1 |
+-------------------------------+-------------------------------------+
| mlx5_device_disable_sriov | mlx5e_get_vf_stats |
| mlx5_eswitch_disable | mlx5_eswitch_get_vport_stats |
| esw_disable_vport | mlx5_eswitch_query_vport_drop_stats |
| mlx5_fc_destroy(drop_counter) | mlx5_fc_query(drop_counter) |
+-------------------------------+-------------------------------------+
Fixes: b8a0dbe3a90b ("net/mlx5e: E-switch, Add steering drop counters")
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions