diff options
| author | Or Har-Toov <ohartoov@nvidia.com> | 2025-12-18 17:58:05 +0200 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-01-05 02:38:17 -0500 |
| commit | 50f1d188c580222d7a73e96a338a5dc82360ccc0 (patch) | |
| tree | abce9e63ab6c79c2e95701074a6664c0d0c50405 /include/linux | |
| parent | 3df5dd46fca4b20efc4767c61d8ecc7249e83f5b (diff) | |
net/mlx5: Propagate LAG effective max_tx_speed to vports
Currently, vports report only their parent's uplink speed, which in LAG
setups does not reflect the true aggregated bandwidth. This makes it
hard for upper-layer software to optimize load balancing decisions
based on accurate bandwidth information.
Fix the issue by calculating the possible maximum speed of a LAG as
the sum of speeds of all active uplinks that are part of the LAG.
Propagate this effective max speed to vports associated with the LAG
whenever a relevant event occurs, such as physical port link state
changes or LAG creation/modification.
With this change, upper-layer components receive accurate bandwidth
information corresponding to the active members of the LAG and can
make better load balancing decisions.
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Maher Sanalla <msanalla@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>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mlx5/vport.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mlx5/vport.h b/include/linux/mlx5/vport.h index f876bfc0669c..2acf10e9f60a 100644 --- a/include/linux/mlx5/vport.h +++ b/include/linux/mlx5/vport.h @@ -41,6 +41,8 @@ (MLX5_CAP_GEN(mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH) && \ mlx5_core_is_pf(mdev)) +#define MLX5_MAX_TX_SPEED_UNIT 100 + enum { MLX5_CAP_INLINE_MODE_L2, MLX5_CAP_INLINE_MODE_VPORT_CONTEXT, @@ -58,6 +60,8 @@ enum { u8 mlx5_query_vport_state(struct mlx5_core_dev *mdev, u8 opmod, u16 vport); int mlx5_modify_vport_admin_state(struct mlx5_core_dev *mdev, u8 opmod, u16 vport, u8 other_vport, u8 state); +int mlx5_modify_vport_max_tx_speed(struct mlx5_core_dev *mdev, u8 opmod, + u16 vport, u8 other_vport, u16 max_tx_speed); int mlx5_query_nic_vport_mac_address(struct mlx5_core_dev *mdev, u16 vport, bool other, u8 *addr); int mlx5_query_mac_address(struct mlx5_core_dev *mdev, u8 *addr); |