diff options
| author | Wei Zhang <weizhang@nvidia.com> | 2023-10-12 22:27:37 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-10-14 20:16:30 +0300 |
| commit | 15fa898aebe5b5fdff393bde8c81ba8b6e7427bf (patch) | |
| tree | 408b1ad8c0c60dded9a9ff9c53bc6b657218c62f /drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.h | |
| parent | 3f7f31fff2510272334f3d0374c432bdaa4f1536 (diff) | |
| download | linux-15fa898aebe5b5fdff393bde8c81ba8b6e7427bf.tar.xz | |
net/mlx5: Redesign SF active work to remove table_lock
active_work is a work that iterates over all
possible SF devices which their SF port
representors are located on different function,
and in case SF is in active state, probes it.
Currently, the active_work in active_wq is
synced with mlx5_vhca_events_work via table_lock
and this lock causing a bottleneck in performance.
To remove table_lock, redesign active_wq logic
so that it now pushes active_work per SF to
mlx5_vhca_events_workqueues. Since the latter
workqueues are ordered, active_work and
mlx5_vhca_events_work with same index will be
pushed into same workqueue, thus it completely
eliminates the need for a lock.
Signed-off-by: Wei Zhang <weizhang@nvidia.com>
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.h b/drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.h index 013cdfe90616..1725ba64f8af 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.h @@ -28,6 +28,9 @@ int mlx5_modify_vhca_sw_id(struct mlx5_core_dev *dev, u16 function_id, u32 sw_fn int mlx5_vhca_event_arm(struct mlx5_core_dev *dev, u16 function_id); int mlx5_cmd_query_vhca_state(struct mlx5_core_dev *dev, u16 function_id, u32 *out, u32 outlen); +void mlx5_vhca_events_work_enqueue(struct mlx5_core_dev *dev, int idx, struct work_struct *work); +void mlx5_vhca_event_work_queues_flush(struct mlx5_core_dev *dev); + #else static inline void mlx5_vhca_state_cap_handle(struct mlx5_core_dev *dev, void *set_hca_cap) |