diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/devx.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/devx.c | 43 |
1 files changed, 27 insertions, 16 deletions
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index c7dffd799d16..e9cf294f8529 100644 --- a/drivers/infiniband/hw/mlx5/devx.c +++ b/drivers/infiniband/hw/mlx5/devx.c @@ -2362,17 +2362,24 @@ static int devx_event_notifier(struct notifier_block *nb, return NOTIFY_OK; } -void mlx5_ib_devx_init_event_table(struct mlx5_ib_dev *dev) +int mlx5_ib_devx_init(struct mlx5_ib_dev *dev) { struct mlx5_devx_event_table *table = &dev->devx_event_table; + int uid; + + uid = mlx5_ib_devx_create(dev, false); + if (uid > 0) { + dev->devx_whitelist_uid = uid; + xa_init(&table->event_xa); + mutex_init(&table->event_xa_lock); + MLX5_NB_INIT(&table->devx_nb, devx_event_notifier, NOTIFY_ANY); + mlx5_eq_notifier_register(dev->mdev, &table->devx_nb); + } - xa_init(&table->event_xa); - mutex_init(&table->event_xa_lock); - MLX5_NB_INIT(&table->devx_nb, devx_event_notifier, NOTIFY_ANY); - mlx5_eq_notifier_register(dev->mdev, &table->devx_nb); + return 0; } -void mlx5_ib_devx_cleanup_event_table(struct mlx5_ib_dev *dev) +void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev) { struct mlx5_devx_event_table *table = &dev->devx_event_table; struct devx_event_subscription *sub, *tmp; @@ -2380,17 +2387,21 @@ void mlx5_ib_devx_cleanup_event_table(struct mlx5_ib_dev *dev) void *entry; unsigned long id; - mlx5_eq_notifier_unregister(dev->mdev, &table->devx_nb); - mutex_lock(&dev->devx_event_table.event_xa_lock); - xa_for_each(&table->event_xa, id, entry) { - event = entry; - list_for_each_entry_safe(sub, tmp, &event->unaffiliated_list, - xa_list) - devx_cleanup_subscription(dev, sub); - kfree(entry); + if (dev->devx_whitelist_uid) { + mlx5_eq_notifier_unregister(dev->mdev, &table->devx_nb); + mutex_lock(&dev->devx_event_table.event_xa_lock); + xa_for_each(&table->event_xa, id, entry) { + event = entry; + list_for_each_entry_safe( + sub, tmp, &event->unaffiliated_list, xa_list) + devx_cleanup_subscription(dev, sub); + kfree(entry); + } + mutex_unlock(&dev->devx_event_table.event_xa_lock); + xa_destroy(&table->event_xa); + + mlx5_ib_devx_destroy(dev, dev->devx_whitelist_uid); } - mutex_unlock(&dev->devx_event_table.event_xa_lock); - xa_destroy(&table->event_xa); } static ssize_t devx_async_cmd_event_read(struct file *filp, char __user *buf, |