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net/mlx5: Move SF dev table notifier registration outside the PF devlink lock

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This completes the previous patches by moving notifier registration for
SF dev tables outside the devlink locked critical section in
mlx5_init_one() / mlx5_uninit_one() and into the mlx5_mdev_init() /
mlx5_mdev_uninit() functions.

This is only done for non-SFs, since SFs do not have a SF HW table
themselves.

After this patch, notifiers can grab the PF devlink lock (soon to be
necessary) without creating a locking cycle.

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/1763325940-1231508-7-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Cosmin Ratiu
2025-11-16 22:45:40 +02:00
committed by Jakub Kicinski
parent d4a0acbd94
commit 64ad6470c8
4 changed files with 49 additions and 17 deletions
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1
include/linux/mlx5/driver.h
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@@ -616,6 +616,7 @@ struct mlx5_priv {
#ifdef CONFIG_MLX5_SF
struct mlx5_nb vhca_state_nb;
struct blocking_notifier_head vhca_state_n_head;
struct notifier_block sf_dev_nb;
struct mlx5_sf_dev_table *sf_dev_table;
struct mlx5_core_dev *parent_mdev;
#endif