From: Aviv Heller Date: Mon, 30 May 2016 15:32:32 +0000 (+0300) Subject: net/mlx5: Configure IB devices according to LAG state X-Git-Tag: v4.9-rc1~127^2~387^2~2 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=917b41aab7b3afb2221ac0895f302ee32431fa6e;p=linux.git net/mlx5: Configure IB devices according to LAG state When mlx5_ib is loaded, we would like each card's IB devices to be added according to its LAG state (one IB device, instead of two, is to be added if LAG is active). Signed-off-by: Aviv Heller Signed-off-by: Saeed Mahameed Signed-off-by: Leon Romanovsky --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c index 5fe320c5a60e..92c3e0dbcbdc 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c @@ -583,3 +583,20 @@ struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev) } EXPORT_SYMBOL(mlx5_lag_get_roce_netdev); +bool mlx5_lag_intf_add(struct mlx5_interface *intf, struct mlx5_priv *priv) +{ + struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, + priv); + struct mlx5_lag *ldev; + + if (intf->protocol != MLX5_INTERFACE_PROTOCOL_IB) + return true; + + ldev = mlx5_lag_dev_get(dev); + if (!ldev || !mlx5_lag_is_bonded(ldev) || ldev->pf[0].dev == dev) + return true; + + /* If bonded, we do not add an IB device for PF1. */ + return false; +} + diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index db7bcfcef3da..28e3ce690e3f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -783,6 +783,9 @@ static void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv) struct mlx5_device_context *dev_ctx; struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv); + if (!mlx5_lag_intf_add(intf, priv)) + return; + dev_ctx = kmalloc(sizeof(*dev_ctx), GFP_KERNEL); if (!dev_ctx) return; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h index 8557435280c3..714b71bed2be 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h @@ -105,6 +105,8 @@ void mlx5_lag_remove(struct mlx5_core_dev *dev); void mlx5_add_dev_by_protocol(struct mlx5_core_dev *dev, int protocol); void mlx5_remove_dev_by_protocol(struct mlx5_core_dev *dev, int protocol); +bool mlx5_lag_intf_add(struct mlx5_interface *intf, struct mlx5_priv *priv); + void mlx5e_init(void); void mlx5e_cleanup(void);