97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/* Copyright (c) 2019 Mellanox Technologies. */
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#ifndef __MLX5_LAG_H__
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#define __MLX5_LAG_H__
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#include "mlx5_core.h"
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#include "mp.h"
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#include "port_sel.h"
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enum {
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MLX5_LAG_P1,
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MLX5_LAG_P2,
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};
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enum {
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MLX5_LAG_FLAG_ROCE = 1 << 0,
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MLX5_LAG_FLAG_SRIOV = 1 << 1,
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MLX5_LAG_FLAG_MULTIPATH = 1 << 2,
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MLX5_LAG_FLAG_READY = 1 << 3,
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MLX5_LAG_FLAG_HASH_BASED = 1 << 4,
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};
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#define MLX5_LAG_MODE_FLAGS (MLX5_LAG_FLAG_ROCE | MLX5_LAG_FLAG_SRIOV |\
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MLX5_LAG_FLAG_MULTIPATH | \
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MLX5_LAG_FLAG_HASH_BASED)
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struct lag_func {
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struct mlx5_core_dev *dev;
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struct net_device *netdev;
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};
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/* Used for collection of netdev event info. */
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struct lag_tracker {
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enum netdev_lag_tx_type tx_type;
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struct netdev_lag_lower_state_info netdev_state[MLX5_MAX_PORTS];
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unsigned int is_bonded:1;
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enum netdev_lag_hash hash_type;
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};
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/* LAG data of a ConnectX card.
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* It serves both its phys functions.
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*/
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struct mlx5_lag {
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u8 flags;
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int mode_changes_in_progress;
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bool shared_fdb;
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u8 v2p_map[MLX5_MAX_PORTS];
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struct kref ref;
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struct lag_func pf[MLX5_MAX_PORTS];
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struct lag_tracker tracker;
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struct workqueue_struct *wq;
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struct delayed_work bond_work;
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struct notifier_block nb;
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struct lag_mp lag_mp;
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struct mlx5_lag_port_sel port_sel;
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};
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static inline bool mlx5_is_lag_supported(struct mlx5_core_dev *dev)
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{
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if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
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!MLX5_CAP_GEN(dev, lag_master) ||
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MLX5_CAP_GEN(dev, num_lag_ports) < 2 ||
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MLX5_CAP_GEN(dev, num_lag_ports) > MLX5_MAX_PORTS)
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return false;
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return true;
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}
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static inline struct mlx5_lag *
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mlx5_lag_dev(struct mlx5_core_dev *dev)
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{
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return dev->priv.lag;
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}
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static inline bool
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__mlx5_lag_is_active(struct mlx5_lag *ldev)
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{
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return !!(ldev->flags & MLX5_LAG_MODE_FLAGS);
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}
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static inline bool
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mlx5_lag_is_ready(struct mlx5_lag *ldev)
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{
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return ldev->flags & MLX5_LAG_FLAG_READY;
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}
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void mlx5_modify_lag(struct mlx5_lag *ldev,
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struct lag_tracker *tracker);
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int mlx5_activate_lag(struct mlx5_lag *ldev,
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struct lag_tracker *tracker,
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u8 flags,
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bool shared_fdb);
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int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev,
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struct net_device *ndev);
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#endif /* __MLX5_LAG_H__ */
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