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net/mlx5: Add support for querying bond speed

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Add mlx5_lag_query_bond_speed() to query the aggregated speed of
lag configurations with a bond device.

Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Or Har-Toov 2025-12-18 17:58:20 +02:00 committed by Leon Romanovsky
parent 28ea6036da
commit f0b2fde980
2 changed files with 28 additions and 1 deletions
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27
drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
View File

@ -1464,6 +1464,33 @@ static void mlx5_lag_update_tracker_speed(struct lag_tracker *tracker,
tracker->bond_speed_mbps = lksettings.base.speed;
}
/* Returns speed in Mbps. */
int mlx5_lag_query_bond_speed(struct mlx5_core_dev *mdev, u32 *speed)
{
struct mlx5_lag *ldev;
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&lag_lock, flags);
ldev = mlx5_lag_dev(mdev);
if (!ldev) {
ret = -ENODEV;
goto unlock;
}
*speed = ldev->tracker.bond_speed_mbps;
if (*speed == SPEED_UNKNOWN) {
mlx5_core_dbg(mdev, "Bond speed is unknown\n");
ret = -EINVAL;
}
unlock:
spin_unlock_irqrestore(&lag_lock, flags);
return ret;
}
EXPORT_SYMBOL_GPL(mlx5_lag_query_bond_speed);
/* this handler is always registered to netdev events */
static int mlx5_lag_netdev_event(struct notifier_block *this,
unsigned long event, void *ptr)

2
include/linux/mlx5/driver.h
View File

@ -1149,7 +1149,7 @@ int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
bool mlx5_lag_is_roce(struct mlx5_core_dev *dev);
bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
int mlx5_lag_query_bond_speed(struct net_device *bond_dev, u32 *speed);
int mlx5_lag_query_bond_speed(struct mlx5_core_dev *dev, u32 *speed);
bool mlx5_lag_mode_is_hash(struct mlx5_core_dev *dev);
bool mlx5_lag_is_master(struct mlx5_core_dev *dev);
bool mlx5_lag_is_shared_fdb(struct mlx5_core_dev *dev);