From: Mark Zhang markz@mellanox.com
[ Upstream commit 08aa5e7da6bce1a1963f63cf32c2e7ad434ad578 ]
When lag is active, which is controlled by the bonded mlx5e netdev, mlx5 interface unregestering must happen in the reverse order where rdma is unregistered (unloaded) first, to guarantee all references to the lag context in hardware is removed, then remove mlx5e netdev interface which will cleanup the lag context from hardware.
Without this fix during destroy of LAG interface, we observed following errors: * mlx5_cmd_check:752:(pid 12556): DESTROY_LAG(0x843) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0xe4ac33) * mlx5_cmd_check:752:(pid 12556): DESTROY_LAG(0x843) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0xa5aee8).
Fixes: a31208b1e11d ("net/mlx5_core: New init and exit flow for mlx5_core") Reviewed-by: Parav Pandit parav@mellanox.com Reviewed-by: Leon Romanovsky leonro@mellanox.com Signed-off-by: Mark Zhang markz@mellanox.com Signed-off-by: Saeed Mahameed saeedm@mellanox.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -778,7 +778,7 @@ static void mlx5_unregister_device(struc struct mlx5_interface *intf;
mutex_lock(&intf_mutex); - list_for_each_entry(intf, &intf_list, list) + list_for_each_entry_reverse(intf, &intf_list, list) mlx5_remove_device(intf, priv); list_del(&priv->dev_list); mutex_unlock(&intf_mutex);