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,
33 MLX5_LAG_MODE_MULTIPATH,
38 struct mlx5_core_dev *dev;
39 struct net_device *netdev;
43 /* Used for collection of netdev event info. */
45 enum netdev_lag_tx_type tx_type;
46 struct netdev_lag_lower_state_info netdev_state[MLX5_MAX_PORTS];
47 unsigned int is_bonded:1;
48 unsigned int has_inactive:1;
49 enum netdev_lag_hash hash_type;
52 /* LAG data of a ConnectX card.
53 * It serves both its phys functions.
56 enum mlx5_lag_mode mode;
57 unsigned long mode_flags;
58 unsigned long state_flags;
61 int mode_changes_in_progress;
62 u8 v2p_map[MLX5_MAX_PORTS * MLX5_LAG_MAX_HASH_BUCKETS];
64 struct lag_func pf[MLX5_MAX_PORTS];
65 struct lag_tracker tracker;
66 struct workqueue_struct *wq;
67 struct delayed_work bond_work;
68 struct work_struct mpesw_work;
69 struct notifier_block nb;
71 struct mlx5_lag_port_sel port_sel;
72 /* Protect lag fields/state changes */
74 struct lag_mpesw lag_mpesw;
77 static inline bool mlx5_is_lag_supported(struct mlx5_core_dev *dev)
79 if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
80 !MLX5_CAP_GEN(dev, lag_master) ||
81 MLX5_CAP_GEN(dev, num_lag_ports) < 2 ||
82 MLX5_CAP_GEN(dev, num_lag_ports) > MLX5_MAX_PORTS)
87 static inline struct mlx5_lag *
88 mlx5_lag_dev(struct mlx5_core_dev *dev)
94 __mlx5_lag_is_active(struct mlx5_lag *ldev)
96 return ldev->mode != MLX5_LAG_MODE_NONE;
100 mlx5_lag_is_ready(struct mlx5_lag *ldev)
102 return test_bit(MLX5_LAG_FLAG_NDEVS_READY, &ldev->state_flags);
105 void mlx5_modify_lag(struct mlx5_lag *ldev,
106 struct lag_tracker *tracker);
107 int mlx5_activate_lag(struct mlx5_lag *ldev,
108 struct lag_tracker *tracker,
109 enum mlx5_lag_mode mode,
111 int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev,
112 struct net_device *ndev);
113 bool mlx5_shared_fdb_supported(struct mlx5_lag *ldev);
114 void mlx5_lag_del_mpesw_rule(struct mlx5_core_dev *dev);
115 int mlx5_lag_add_mpesw_rule(struct mlx5_core_dev *dev);
117 char *mlx5_get_str_port_sel_mode(struct mlx5_lag *ldev);
118 void mlx5_infer_tx_enabled(struct lag_tracker *tracker, u8 num_ports,
119 u8 *ports, int *num_enabled);
121 void mlx5_ldev_add_debugfs(struct mlx5_core_dev *dev);
122 void mlx5_ldev_remove_debugfs(struct dentry *dbg);
123 void mlx5_disable_lag(struct mlx5_lag *ldev);
125 #endif /* __MLX5_LAG_H__ */