diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/lag/lag.h')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lag/lag.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.h b/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.h new file mode 100644 index 000000000..f30ac2de6 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.h @@ -0,0 +1,138 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2019 Mellanox Technologies. */ + +#ifndef __MLX5_LAG_H__ +#define __MLX5_LAG_H__ + +#include <linux/debugfs.h> + +#define MLX5_LAG_MAX_HASH_BUCKETS 16 +#include "mlx5_core.h" +#include "mp.h" +#include "port_sel.h" +#include "mpesw.h" + +enum { + MLX5_LAG_P1, + MLX5_LAG_P2, +}; + +enum { + MLX5_LAG_FLAG_NDEVS_READY, +}; + +enum { + MLX5_LAG_MODE_FLAG_HASH_BASED, + MLX5_LAG_MODE_FLAG_SHARED_FDB, + MLX5_LAG_MODE_FLAG_FDB_SEL_MODE_NATIVE, +}; + +enum mlx5_lag_mode { + MLX5_LAG_MODE_NONE, + MLX5_LAG_MODE_ROCE, + MLX5_LAG_MODE_SRIOV, + MLX5_LAG_MODE_MULTIPATH, + MLX5_LAG_MODE_MPESW, +}; + +struct lag_func { + struct mlx5_core_dev *dev; + struct net_device *netdev; + bool has_drop; +}; + +/* Used for collection of netdev event info. */ +struct lag_tracker { + enum netdev_lag_tx_type tx_type; + struct netdev_lag_lower_state_info netdev_state[MLX5_MAX_PORTS]; + unsigned int is_bonded:1; + unsigned int has_inactive:1; + enum netdev_lag_hash hash_type; +}; + +enum mpesw_op { + MLX5_MPESW_OP_ENABLE, + MLX5_MPESW_OP_DISABLE, +}; + +struct mlx5_mpesw_work_st { + struct work_struct work; + struct mlx5_lag *lag; + enum mpesw_op op; + struct completion comp; + int result; +}; + +/* LAG data of a ConnectX card. + * It serves both its phys functions. + */ +struct mlx5_lag { + enum mlx5_lag_mode mode; + unsigned long mode_flags; + unsigned long state_flags; + u8 ports; + u8 buckets; + int mode_changes_in_progress; + u8 v2p_map[MLX5_MAX_PORTS * MLX5_LAG_MAX_HASH_BUCKETS]; + struct kref ref; + struct lag_func pf[MLX5_MAX_PORTS]; + struct lag_tracker tracker; + struct workqueue_struct *wq; + struct delayed_work bond_work; + struct notifier_block nb; + struct lag_mp lag_mp; + struct mlx5_lag_port_sel port_sel; + /* Protect lag fields/state changes */ + struct mutex lock; + struct lag_mpesw lag_mpesw; +}; + +static inline bool mlx5_is_lag_supported(struct mlx5_core_dev *dev) +{ + if (!MLX5_CAP_GEN(dev, vport_group_manager) || + !MLX5_CAP_GEN(dev, lag_master) || + MLX5_CAP_GEN(dev, num_lag_ports) < 2 || + MLX5_CAP_GEN(dev, num_lag_ports) > MLX5_MAX_PORTS) + return false; + return true; +} + +static inline struct mlx5_lag * +mlx5_lag_dev(struct mlx5_core_dev *dev) +{ + return dev->priv.lag; +} + +static inline bool +__mlx5_lag_is_active(struct mlx5_lag *ldev) +{ + return ldev->mode != MLX5_LAG_MODE_NONE; +} + +static inline bool +mlx5_lag_is_ready(struct mlx5_lag *ldev) +{ + return test_bit(MLX5_LAG_FLAG_NDEVS_READY, &ldev->state_flags); +} + +void mlx5_modify_lag(struct mlx5_lag *ldev, + struct lag_tracker *tracker); +int mlx5_activate_lag(struct mlx5_lag *ldev, + struct lag_tracker *tracker, + enum mlx5_lag_mode mode, + bool shared_fdb); +int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev, + struct net_device *ndev); +bool mlx5_shared_fdb_supported(struct mlx5_lag *ldev); +void mlx5_lag_del_mpesw_rule(struct mlx5_core_dev *dev); +int mlx5_lag_add_mpesw_rule(struct mlx5_core_dev *dev); + +char *mlx5_get_str_port_sel_mode(enum mlx5_lag_mode mode, unsigned long flags); +void mlx5_infer_tx_enabled(struct lag_tracker *tracker, u8 num_ports, + u8 *ports, int *num_enabled); + +void mlx5_ldev_add_debugfs(struct mlx5_core_dev *dev); +void mlx5_ldev_remove_debugfs(struct dentry *dbg); +void mlx5_disable_lag(struct mlx5_lag *ldev); + +#endif /* __MLX5_LAG_H__ */ |