Messages in this thread Patch in this message | | | From | Leon Romanovsky <> | Subject | [PATCH rdma-rc] RDMA/mlx5: Block FDB rules when not in switchdev mode | Date | Mon, 7 Jun 2021 11:03:12 +0300 |
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From: Mark Bloch <mbloch@nvidia.com>
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: 52438be44112 ("RDMA/mlx5: Allow inserting a steering rule to the FDB") Reviewed-by: Maor Gottlieb <maorg@nvidia.com> Signed-off-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> --- drivers/infiniband/hw/mlx5/fs.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/fs.c b/drivers/infiniband/hw/mlx5/fs.c index 2fc6a60c4e77..f84441ff0c81 100644 --- a/drivers/infiniband/hw/mlx5/fs.c +++ b/drivers/infiniband/hw/mlx5/fs.c @@ -2134,6 +2134,12 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_FLOW_MATCHER_CREATE)( if (err) goto end; + if (obj->ns_type == MLX5_FLOW_NAMESPACE_FDB && + mlx5_eswitch_mode(dev->mdev) != MLX5_ESWITCH_OFFLOADS) { + err = -EINVAL; + goto end; + } + uobj->object = obj; obj->mdev = dev->mdev; atomic_set(&obj->usecnt, 0); -- 2.31.1
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