diff options
| author | Or Har-Toov <ohartoov@nvidia.com> | 2025-12-18 17:58:53 +0200 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-01-05 02:43:12 -0500 |
| commit | 3fd984d5cd8f0df8e79337fbd9283c31dee9ed31 (patch) | |
| tree | c62b328dc655a89eadaaec988b967f46a1e5ec39 | |
| parent | 51a07ce2fefd061edf4ba552a741c85f07b3e6dd (diff) | |
RDMA/mlx5: Raise async event on device speed change
Raise IB_EVENT_DEVICE_SPEED_CHANGE whenever the speed of one of the
device's ports changes. Usually all ports of the device changes
together.
This ensures user applications and upper-layer software are immediately
notified when bandwidth changes, improving traffic management in dynamic
environments. This is especially useful for vports which are part of a
LAG configuration, to know if the effective speed of the LAG was
changed.
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>
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 40284bbb45d6..bea42acbeaad 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -2838,6 +2838,14 @@ static int handle_port_change(struct mlx5_ib_dev *ibdev, struct mlx5_eqe *eqe, case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE: case MLX5_PORT_CHANGE_SUBTYPE_DOWN: case MLX5_PORT_CHANGE_SUBTYPE_INITIALIZED: + if (ibdev->ib_active) { + struct ib_event speed_event = {}; + + speed_event.device = &ibdev->ib_dev; + speed_event.event = IB_EVENT_DEVICE_SPEED_CHANGE; + ib_dispatch_event(&speed_event); + } + /* In RoCE, port up/down events are handled in * mlx5_netdev_event(). */ |