diff options
author | Shay Drory <shayd@nvidia.com> | 2023-10-12 22:27:40 +0300 |
---|---|---|
committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-10-14 20:16:31 +0300 |
commit | b430c1b4f63be51dde175a1dd3addba65ca24e2b (patch) | |
tree | d0426edc7e49d6ecbe54efb8e03e217025571e53 /drivers/net/ethernet/mellanox/mlx5/core/lib | |
parent | e534552c92a44690e48593f9567fe689545ded73 (diff) | |
download | linux-b430c1b4f63be51dde175a1dd3addba65ca24e2b.tar.xz |
net/mlx5: Replace global mlx5_intf_lock with HCA devcom component lock
mlx5_intf_lock is used to sync between LAG changes and its slaves
mlx5 core dev aux devices changes, which means every time mlx5 core
dev add/remove aux devices, mlx5 is taking this global lock, even if
LAG functionality isn't supported over the core dev.
This cause a bottleneck when probing VFs/SFs in parallel.
Hence, replace mlx5_intf_lock with HCA devcom component lock, or no
lock if LAG functionality isn't supported.
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@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/lib')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c | 7 | ||||
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.h | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c index f4d5c300ddd6..e8e50563e956 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c @@ -401,3 +401,10 @@ void mlx5_devcom_comp_unlock(struct mlx5_devcom_comp_dev *devcom) return; up_write(&devcom->comp->sem); } + +int mlx5_devcom_comp_trylock(struct mlx5_devcom_comp_dev *devcom) +{ + if (IS_ERR_OR_NULL(devcom)) + return 0; + return down_write_trylock(&devcom->comp->sem); +} diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.h b/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.h index f06529cc3c61..fc23bbef87b4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.h @@ -55,5 +55,6 @@ void *mlx5_devcom_get_next_peer_data_rcu(struct mlx5_devcom_comp_dev *devcom, void mlx5_devcom_comp_lock(struct mlx5_devcom_comp_dev *devcom); void mlx5_devcom_comp_unlock(struct mlx5_devcom_comp_dev *devcom); +int mlx5_devcom_comp_trylock(struct mlx5_devcom_comp_dev *devcom); #endif /* __LIB_MLX5_DEVCOM_H__ */ |