diff options
| author | Cosmin Ratiu <cratiu@nvidia.com> | 2025-11-16 22:45:37 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-11-19 20:32:27 -0800 |
| commit | d3a356db853bc2dfb51034eacafd41aca7dd4c37 (patch) | |
| tree | ee848f738645722db8bca0f5d824ea48a69e59bd /include | |
| parent | 3fee828789b1cf294a8fc83ad8a37f644c174fae (diff) | |
net/mlx5: Move the vhca event notifier outside of the devlink lock
The vhca event notifier consists of an atomic notifier for vhca state
changes (used for SF events), multiple workqueues and a blocking
notifier chain for delivering the vhca state change events for further
processing.
This patch moves the vhca notifier head outside of mlx5_init_one() /
mlx5_uninit_one() and into the mlx5_mdev_init() / mlx5_mdev_uninit()
functions.
This allows called notifiers to grab the PF devlink lock which was
previously impossible because it would create a circular lock
dependency.
mlx5_vhca_event_stop() is now called earlier in the cleanup phase and
flushes the workqueues to ensure that after the call, there are no
pending events. This simplifies the cleanup flow for vhca event
consumers.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1763325940-1231508-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mlx5/driver.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 9a4a5112a59e..88afb2788dc9 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -488,7 +488,6 @@ struct mlx5_devcom_dev; struct mlx5_fw_reset; struct mlx5_eq_table; struct mlx5_irq_table; -struct mlx5_vhca_state_notifier; struct mlx5_sf_dev_table; struct mlx5_sf_hw_table; struct mlx5_sf_table; @@ -615,7 +614,8 @@ struct mlx5_priv { struct mlx5_bfreg_data bfregs; struct mlx5_sq_bfreg bfreg; #ifdef CONFIG_MLX5_SF - struct mlx5_vhca_state_notifier *vhca_state_notifier; + struct mlx5_nb vhca_state_nb; + struct blocking_notifier_head vhca_state_n_head; struct mlx5_sf_dev_table *sf_dev_table; struct mlx5_core_dev *parent_mdev; #endif |