netdev - [net-next 06/17] net/mlx5: Use own workqueue for lag netdev events processing

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Date:   Fri,  1 Mar 2019 12:08:37 -0800
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Roi Dayan <roid@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 06/17] net/mlx5: Use own workqueue for lag netdev events processing

From: Roi Dayan <roid@...lanox.com>

Instead of using the system workqueue, allocate our own workqueue.
This workqueue will be used to handle more work in the next patch.

This patch doesn't change functionality.

Signed-off-by: Roi Dayan <roid@...lanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag.c | 9 ++++++++-
 drivers/net/ethernet/mellanox/mlx5/core/lag.h | 1 +
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
index 3b0f7cf822d5..eff5c54818b7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -346,7 +346,7 @@ static void mlx5_do_bond(struct mlx5_lag *ldev)
 
 static void mlx5_queue_bond_work(struct mlx5_lag *ldev, unsigned long delay)
 {
-	schedule_delayed_work(&ldev->bond_work, delay);
+	queue_delayed_work(ldev->wq, &ldev->bond_work, delay);
 }
 
 static void mlx5_do_bond_work(struct work_struct *work)
@@ -498,6 +498,12 @@ static struct mlx5_lag *mlx5_lag_dev_alloc(void)
 	if (!ldev)
 		return NULL;
 
+	ldev->wq = create_singlethread_workqueue("mlx5_lag");
+	if (!ldev->wq) {
+		kfree(ldev);
+		return NULL;
+	}
+
 	INIT_DELAYED_WORK(&ldev->bond_work, mlx5_do_bond_work);
 
 	return ldev;
@@ -505,6 +511,7 @@ static struct mlx5_lag *mlx5_lag_dev_alloc(void)
 
 static void mlx5_lag_dev_free(struct mlx5_lag *ldev)
 {
+	destroy_workqueue(ldev->wq);
 	kfree(ldev);
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.h b/drivers/net/ethernet/mellanox/mlx5/core/lag.h
index a6637016c1ab..58f93d411ad5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.h
@@ -33,6 +33,7 @@ struct mlx5_lag {
 	u8                        v2p_map[MLX5_MAX_PORTS];
 	struct lag_func           pf[MLX5_MAX_PORTS];
 	struct lag_tracker        tracker;
+	struct workqueue_struct   *wq;
 	struct delayed_work       bond_work;
 	struct notifier_block     nb;
 };
-- 
2.20.1