1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /* Copyright (c) 2019 Mellanox Technologies. */
3
4 #ifndef __MLX5_LAG_H__
5 #define __MLX5_LAG_H__
6
7 #include "mlx5_core.h"
8 #include "mp.h"
9 #include "port_sel.h"
10
11 enum {
12 MLX5_LAG_P1,
13 MLX5_LAG_P2,
14 };
15
16 enum {
17 MLX5_LAG_FLAG_ROCE = 1 << 0,
18 MLX5_LAG_FLAG_SRIOV = 1 << 1,
19 MLX5_LAG_FLAG_MULTIPATH = 1 << 2,
20 MLX5_LAG_FLAG_READY = 1 << 3,
21 MLX5_LAG_FLAG_HASH_BASED = 1 << 4,
22 };
23
24 #define MLX5_LAG_MODE_FLAGS (MLX5_LAG_FLAG_ROCE | MLX5_LAG_FLAG_SRIOV |\
25 MLX5_LAG_FLAG_MULTIPATH | \
26 MLX5_LAG_FLAG_HASH_BASED)
27
28 struct lag_func {
29 struct mlx5_core_dev *dev;
30 struct net_device *netdev;
31 };
32
33 /* Used for collection of netdev event info. */
34 struct lag_tracker {
35 enum netdev_lag_tx_type tx_type;
36 struct netdev_lag_lower_state_info netdev_state[MLX5_MAX_PORTS];
37 unsigned int is_bonded:1;
38 enum netdev_lag_hash hash_type;
39 };
40
41 /* LAG data of a ConnectX card.
42 * It serves both its phys functions.
43 */
44 struct mlx5_lag {
45 u8 flags;
46 int mode_changes_in_progress;
47 bool shared_fdb;
48 u8 v2p_map[MLX5_MAX_PORTS];
49 struct kref ref;
50 struct lag_func pf[MLX5_MAX_PORTS];
51 struct lag_tracker tracker;
52 struct workqueue_struct *wq;
53 struct delayed_work bond_work;
54 struct notifier_block nb;
55 struct lag_mp lag_mp;
56 struct mlx5_lag_port_sel port_sel;
57 };
58
59 static inline struct mlx5_lag *
mlx5_lag_dev(struct mlx5_core_dev * dev)60 mlx5_lag_dev(struct mlx5_core_dev *dev)
61 {
62 return dev->priv.lag;
63 }
64
65 static inline bool
__mlx5_lag_is_active(struct mlx5_lag * ldev)66 __mlx5_lag_is_active(struct mlx5_lag *ldev)
67 {
68 return !!(ldev->flags & MLX5_LAG_MODE_FLAGS);
69 }
70
71 static inline bool
mlx5_lag_is_ready(struct mlx5_lag * ldev)72 mlx5_lag_is_ready(struct mlx5_lag *ldev)
73 {
74 return ldev->flags & MLX5_LAG_FLAG_READY;
75 }
76
77 void mlx5_modify_lag(struct mlx5_lag *ldev,
78 struct lag_tracker *tracker);
79 int mlx5_activate_lag(struct mlx5_lag *ldev,
80 struct lag_tracker *tracker,
81 u8 flags,
82 bool shared_fdb);
83 int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev,
84 struct net_device *ndev);
85
86 #endif /* __MLX5_LAG_H__ */
87