1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /* Copyright (c) 2019 Mellanox Technologies. */
7 #include <linux/debugfs.h>
9 #define MLX5_LAG_MAX_HASH_BUCKETS 16
10 #include "mlx5_core.h"
21 MLX5_LAG_FLAG_NDEVS_READY,
25 MLX5_LAG_MODE_FLAG_HASH_BASED,
26 MLX5_LAG_MODE_FLAG_SHARED_FDB,
27 MLX5_LAG_MODE_FLAG_FDB_SEL_MODE_NATIVE,
34 MLX5_LAG_MODE_MULTIPATH,
39 struct mlx5_core_dev *dev;
40 struct net_device *netdev;
44 /* Used for collection of netdev event info. */
46 enum netdev_lag_tx_type tx_type;
47 struct netdev_lag_lower_state_info netdev_state[MLX5_MAX_PORTS];
48 unsigned int is_bonded:1;
49 unsigned int has_inactive:1;
50 enum netdev_lag_hash hash_type;
53 /* LAG data of a ConnectX card.
54 * It serves both its phys functions.
57 enum mlx5_lag_mode mode;
58 unsigned long mode_flags;
59 unsigned long state_flags;
62 int mode_changes_in_progress;
63 u8 v2p_map[MLX5_MAX_PORTS * MLX5_LAG_MAX_HASH_BUCKETS];
65 struct lag_func pf[MLX5_MAX_PORTS];
66 struct lag_tracker tracker;
67 struct workqueue_struct *wq;
68 struct delayed_work bond_work;
69 struct work_struct mpesw_work;
70 struct notifier_block nb;
72 struct mlx5_lag_port_sel port_sel;
73 /* Protect lag fields/state changes */
75 struct lag_mpesw lag_mpesw;
78 static inline bool mlx5_is_lag_supported(struct mlx5_core_dev *dev)
80 if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
81 !MLX5_CAP_GEN(dev, lag_master) ||
82 MLX5_CAP_GEN(dev, num_lag_ports) < 2 ||
83 MLX5_CAP_GEN(dev, num_lag_ports) > MLX5_MAX_PORTS)
88 static inline struct mlx5_lag *
89 mlx5_lag_dev(struct mlx5_core_dev *dev)
95 __mlx5_lag_is_active(struct mlx5_lag *ldev)
97 return ldev->mode != MLX5_LAG_MODE_NONE;
101 mlx5_lag_is_ready(struct mlx5_lag *ldev)
103 return test_bit(MLX5_LAG_FLAG_NDEVS_READY, &ldev->state_flags);
106 void mlx5_modify_lag(struct mlx5_lag *ldev,
107 struct lag_tracker *tracker);
108 int mlx5_activate_lag(struct mlx5_lag *ldev,
109 struct lag_tracker *tracker,
110 enum mlx5_lag_mode mode,
112 int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev,
113 struct net_device *ndev);
114 bool mlx5_shared_fdb_supported(struct mlx5_lag *ldev);
115 void mlx5_lag_del_mpesw_rule(struct mlx5_core_dev *dev);
116 int mlx5_lag_add_mpesw_rule(struct mlx5_core_dev *dev);
118 char *mlx5_get_str_port_sel_mode(enum mlx5_lag_mode mode, unsigned long flags);
119 void mlx5_infer_tx_enabled(struct lag_tracker *tracker, u8 num_ports,
120 u8 *ports, int *num_enabled);
122 void mlx5_ldev_add_debugfs(struct mlx5_core_dev *dev);
123 void mlx5_ldev_remove_debugfs(struct dentry *dbg);
124 void mlx5_disable_lag(struct mlx5_lag *ldev);
126 #endif /* __MLX5_LAG_H__ */