netdev - [PATCH net 3/6] net/mlx5: E-Switch, Fix switching to switchdev mode with IB device disabled

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Message-ID: <20241203204920.232744-4-tariqt@nvidia.com>
Date: Tue, 3 Dec 2024 22:49:17 +0200
From: Tariq Toukan <tariqt@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>, "Andrew
 Lunn" <andrew+netdev@...n.ch>
CC: <netdev@...r.kernel.org>, Saeed Mahameed <saeedm@...dia.com>, Gal Pressman
	<gal@...dia.com>, Leon Romanovsky <leonro@...dia.com>, Patrisious Haddad
	<phaddad@...dia.com>, Mark Bloch <mbloch@...dia.com>, Tariq Toukan
	<tariqt@...dia.com>
Subject: [PATCH net 3/6] net/mlx5: E-Switch, Fix switching to switchdev mode with IB device disabled

From: Patrisious Haddad <phaddad@...dia.com>

In case that IB device is already disabled when moving to switchdev mode,
which can happen when working with LAG, need to do rescan_drivers()
before leaving in order to add ethernet representor auxiliary device.

Fixes: ab85ebf43723 ("net/mlx5: E-switch, refactor eswitch mode change")
Signed-off-by: Patrisious Haddad <phaddad@...dia.com>
Reviewed-by: Mark Bloch <mbloch@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index d6ff2dc4c19e..5213d5b2cad5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -2338,6 +2338,7 @@ static void esw_mode_change(struct mlx5_eswitch *esw, u16 mode)
 
 	if (esw->dev->priv.flags & MLX5_PRIV_FLAGS_DISABLE_IB_ADEV) {
 		esw->mode = mode;
+		mlx5_rescan_drivers_locked(esw->dev);
 		mlx5_devcom_comp_unlock(esw->dev->priv.hca_devcom_comp);
 		return;
 	}
-- 
2.44.0