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/openbmc/linux/drivers/net/ethernet/mellanox/mlx5/core/en/rep/ |
H A D | bridge.c | 15f8f168 Thu Nov 03 01:55:37 CDT 2022 Vlad Buslov <vladbu@nvidia.com> net/mlx5: Bridge, verify LAG state when adding bond to bridge
Mlx5 LAG is initialized asynchronously on a workqueue which means that for a brief moment after setting mlx5 UL representors as lower devices of a bond netdevice the LAG itself is not fully initialized in the driver. When adding such bond device to a bridge mlx5 bridge code will not consider it as offload-capable, skip creating necessary bookkeeping and fail any further bridge offload-related commands with it (setting VLANs, offloading FDBs, etc.). In order to make the error explicit during bridge initialization stage implement the code that detects such condition during NETDEV_PRECHANGEUPPER event and returns an error.
Fixes: ff9b7521468b ("net/mlx5: Bridge, support LAG") Signed-off-by: Vlad Buslov <vladbu@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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