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From: Saeed Mahameed <saeed@kernel.org>
To: Saeed Mahameed <saeedm@nvidia.com>, Leon Romanovsky <leonro@nvidia.com>
Cc: netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
	Mark Bloch <mbloch@nvidia.com>, Mark Zhang <markzhang@nvidia.com>
Subject: [PATCH mlx5-next 12/14] net/mlx5: Lag, move lag destruction to a workqueue
Date: Tue,  3 Aug 2021 16:19:57 -0700	[thread overview]
Message-ID: <20210803231959.26513-13-saeed@kernel.org> (raw)
In-Reply-To: <20210803231959.26513-1-saeed@kernel.org>

From: Mark Bloch <mbloch@nvidia.com>

If a netdev is removed from the lag the lag should be destroyed.
With downstream patches this might trigger a reconfiguration of
representors on a different eswitch and such we don't have the proper
locking to so from this path. Move the destruction to be done by the
workqueue.

As the destruction won't affect the netdev side it okay to do so.
The RDMA side will be reconfigured and it already coded to handle such
reconfiguration.

Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
index 459e3e5ef13f..89cd2b2af50a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -371,12 +371,13 @@ static void mlx5_do_bond(struct mlx5_lag *ldev)
 	bool do_bond, roce_lag;
 	int err;
 
-	if (!mlx5_lag_is_ready(ldev))
-		return;
-
-	tracker = ldev->tracker;
+	if (!mlx5_lag_is_ready(ldev)) {
+		do_bond = false;
+	} else {
+		tracker = ldev->tracker;
 
-	do_bond = tracker.is_bonded && mlx5_lag_check_prereq(ldev);
+		do_bond = tracker.is_bonded && mlx5_lag_check_prereq(ldev);
+	}
 
 	if (do_bond && !__mlx5_lag_is_active(ldev)) {
 		roce_lag = !mlx5_sriov_is_enabled(dev0) &&
@@ -733,11 +734,11 @@ void mlx5_lag_remove_netdev(struct mlx5_core_dev *dev,
 	if (!ldev)
 		return;
 
-	if (__mlx5_lag_is_active(ldev))
-		mlx5_disable_lag(ldev);
-
 	mlx5_ldev_remove_netdev(ldev, netdev);
 	ldev->flags &= ~MLX5_LAG_FLAG_READY;
+
+	if (__mlx5_lag_is_active(ldev))
+		mlx5_queue_bond_work(ldev, 0);
 }
 
 /* Must be called with intf_mutex held */
-- 
2.31.1


  parent reply	other threads:[~2021-08-03 23:20 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03 23:19 [PATCH mlx5-next 00/14] mlx5 single FDB for lag Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 01/14] net/mlx5: Return mdev from eswitch Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 02/14] net/mlx5: Lag, add initial logic for shared FDB Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 03/14] RDMA/mlx5: Fill port info based on the relevant eswitch Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 04/14] {net, RDMA}/mlx5: Extend send to vport rules Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 05/14] RDMA/mlx5: Add shared FDB support Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 06/14] net/mlx5: E-Switch, set flow source for send to uplink rule Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 07/14] net/mlx5e: Add an option to create a shared mapping Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 08/14] net/mlx5e: Use shared mappings for restoring from metadata Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 09/14] net/mlx5: E-Switch, Add event callback for representors Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 10/14] net/mlx5: Add send to vport rules on paired device Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 11/14] net/mlx5: Lag, properly lock eswitch if needed Saeed Mahameed
2021-08-03 23:19 ` Saeed Mahameed [this message]
2021-08-03 23:19 ` [PATCH mlx5-next 13/14] net/mlx5/ E-Switch, add logic to enable shared FDB Saeed Mahameed
2021-08-03 23:19 ` [PATCH mlx5-next 14/14] net/mlx5: Lag, Create shared FDB when in switchdev mode Saeed Mahameed
2021-08-05 21:02 ` [PATCH mlx5-next 00/14] mlx5 single FDB for lag Saeed Mahameed

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