diff options
| author | Konstantin Belousov <kib@FreeBSD.org> | 2026-03-10 07:32:00 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2026-03-23 00:23:53 +0000 |
| commit | f0d5f46a1e42b801d96447e544cc3820612748b1 (patch) | |
| tree | 8f29372609faf622f67b78c9abf08018b51c850f | |
| parent | 434e1c3d84135d1c3a6e578fdfa4b508f0914494 (diff) | |
mlx5: postpone freeing the completed command entity to taskqueue
because cancel_delayed_work_sync() might need to sleep, which cannot be
done in the interrupt thread where the completion runs.
Sponsored by: Nvidia networking
MFC after: 1 week
| -rw-r--r-- | sys/dev/mlx5/driver.h | 1 | ||||
| -rw-r--r-- | sys/dev/mlx5/mlx5_core/mlx5_cmd.c | 12 |
2 files changed, 12 insertions, 1 deletions
diff --git a/sys/dev/mlx5/driver.h b/sys/dev/mlx5/driver.h index cdefe7e013f6..ba6714c5c7b6 100644 --- a/sys/dev/mlx5/driver.h +++ b/sys/dev/mlx5/driver.h @@ -890,6 +890,7 @@ struct mlx5_cmd_work_ent { u16 op; u8 busy; bool polling; + struct work_struct freew; }; struct mlx5_pas { diff --git a/sys/dev/mlx5/mlx5_core/mlx5_cmd.c b/sys/dev/mlx5/mlx5_core/mlx5_cmd.c index 86c721a83cb7..e314a04c294f 100644 --- a/sys/dev/mlx5/mlx5_core/mlx5_cmd.c +++ b/sys/dev/mlx5/mlx5_core/mlx5_cmd.c @@ -802,6 +802,15 @@ static void cb_timeout_handler(struct work_struct *work) mlx5_cmd_comp_handler(dev, 1UL << ent->idx, MLX5_CMD_MODE_EVENTS); } +static void +cmd_free_work(struct work_struct *work) +{ + struct mlx5_cmd_work_ent *ent = container_of(work, + struct mlx5_cmd_work_ent, freew); + + free_cmd(ent); +} + static void complete_command(struct mlx5_cmd_work_ent *ent) { struct mlx5_cmd *cmd = ent->cmd; @@ -856,7 +865,8 @@ static void complete_command(struct mlx5_cmd_work_ent *ent) free_msg(dev, ent->in); err = err ? err : ent->status; - free_cmd(ent); + INIT_WORK(&ent->freew, cmd_free_work); + schedule_work(&ent->freew); callback(err, context); } else { complete(&ent->done); |