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| author |   Roy Novich <royno@nvidia.com> | 2022-11-02 23:55:38 -0700 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@nvidia.com> | 2022-11-09 10:30:42 -0800 |
| commit | 2808b37b59288ad8f1897e3546c2296df3384b65 (patch) | |
| tree | fa9d5fa8567025c80bc2e593fa81e05a1c9c3498 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | net/mlx5: Bridge, verify LAG state when adding bond to bridge (diff) | |
| download | linux-dev-2808b37b59288ad8f1897e3546c2296df3384b65.tar.xz linux-dev-2808b37b59288ad8f1897e3546c2296df3384b65.zip | |
net/mlx5: Allow async trigger completion execution on single CPU systems
For a single CPU system, the kernel thread executing mlx5_cmd_flush()
never releases the CPU but calls down_trylock(&cmd→sem) in a busy loop.
On a single processor system, this leads to a deadlock as the kernel
thread which executes mlx5_cmd_invoke() never gets scheduled. Fix this,
by adding the cond_resched() call to the loop, allow the command
completion kernel thread to execute.
Fixes: 8e715cd613a1 ("net/mlx5: Set command entry semaphore up once got index free")
Signed-off-by: Alexander Schmidt <alexschm@de.ibm.com>
Signed-off-by: Roy Novich <royno@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions