RDMA/mlx5: Block FDB rules when not in switchdev mode
Allow creating FDB steering rules only when in switchdev mode. The only software model where a userspace application can manipulate FDB entries is when it manages the eswitch. This is only possible in switchdev mode where we expose a single RDMA device with representors for all the vports that are connected to the eswitch. Fixes: 52438be4 ("RDMA/mlx5: Allow inserting a steering rule to the FDB") Link: https://lore.kernel.org/r/e928ae7c58d07f104716a2a8d730963d1bd01204.1623052923.git.leonro@nvidia.com Reviewed-by:Maor Gottlieb <maorg@nvidia.com> Signed-off-by:
Mark Bloch <mbloch@nvidia.com> Signed-off-by:
Leon Romanovsky <leonro@nvidia.com> Signed-off-by:
Jason Gunthorpe <jgg@nvidia.com>
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