From 42a97799828d9c237508b3e87792fc18e19d38c0 Mon Sep 17 00:00:00 2001
From: Bodong Wang <bodong@mellanox.com>
Date: Wed, 13 Feb 2019 10:52:34 -0600
Subject: [PATCH] net/mlx5: Correctly set LAG mode for ECPF

When bonding is added, driver assumes that it's RoCE LAG if no VF is
enabled. This is not enough for ECPF as the VF is enabled in host PF
side. LAG should only choose RoCE mode when both slave devices meet
conditions below:
 1. E-Switch offloads mode is NONE.
 2. No VF is enabled.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
index 2d223385dc819..04c5aca7f8c54 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -343,6 +343,11 @@ static void mlx5_do_bond(struct mlx5_lag *ldev)
 		roce_lag = !mlx5_sriov_is_enabled(dev0) &&
 			   !mlx5_sriov_is_enabled(dev1);
 
+#ifdef CONFIG_MLX5_ESWITCH
+		roce_lag &= dev0->priv.eswitch->mode == SRIOV_NONE &&
+			    dev1->priv.eswitch->mode == SRIOV_NONE;
+#endif
+
 		if (roce_lag)
 			mlx5_lag_remove_ib_devices(ldev);
 
-- 
2.39.5