linux-kernel - [PATCH 5.7 055/120] net/mlx5: E-switch, Destroy TSAR after reload interface

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Date:   Mon,  3 Aug 2020 14:18:33 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Parav Pandit <parav@...lanox.com>,
        Roi Dayan <roid@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 055/120] net/mlx5: E-switch, Destroy TSAR after reload interface

From: Parav Pandit <parav@...lanox.com>

[ Upstream commit 0c2600c619578f759cf3d5192b01bd14e281f24c ]

When eswitch offloads is enabled, TSAR is created before reloading
the interfaces.
However when eswitch offloads mode is disabled, TSAR is disabled before
reloading the interfaces.

To keep the eswitch enable/disable sequence as mirror, destroy TSAR
after reloading the interfaces.

Fixes: 1bd27b11c1df ("net/mlx5: Introduce E-switch QoS management")
Signed-off-by: Parav Pandit <parav@...lanox.com>
Reviewed-by: Roi Dayan <roid@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 459cd668b9e2f..3bb4f72b76da2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -2206,8 +2206,6 @@ void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw, bool clear_vf)
 	else if (esw->mode == MLX5_ESWITCH_OFFLOADS)
 		esw_offloads_disable(esw);
 
-	esw_destroy_tsar(esw);
-
 	old_mode = esw->mode;
 	esw->mode = MLX5_ESWITCH_NONE;
 
@@ -2217,6 +2215,8 @@ void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw, bool clear_vf)
 		mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
 		mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH);
 	}
+	esw_destroy_tsar(esw);
+
 	if (clear_vf)
 		mlx5_eswitch_clear_vf_vports_info(esw);
 }
-- 
2.25.1