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| author | Roy Novich <royno@nvidia.com> | 2022-11-02 23:55:38 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-16 10:04:00 +0100 |
| commit | c5e804f1f34f95f2c43b031ac768a9784daadaa1 (patch) | |
| tree | 0027ed742aa0881629b987790cb6caf67bb232fd /drivers/net/ethernet/intel/ice/ice_lib.c | |
| parent | 60510fcadec9f53358f1c9a9939a850756016874 (diff) | |
net/mlx5: Allow async trigger completion execution on single CPU systems
[ Upstream commit 2808b37b59288ad8f1897e3546c2296df3384b65 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_lib.c')
0 files changed, 0 insertions, 0 deletions