Re: [PATCH rdma-next 1/2] RDMA/mlx5: Fix MR cache debugfs in switchdev mode

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On Thu, Feb 02, 2023 at 04:05:18PM +0200, Leon Romanovsky wrote:
> On Thu, Feb 02, 2023 at 09:56:51AM -0400, Jason Gunthorpe wrote:
> > On Thu, Feb 02, 2023 at 11:03:06AM +0200, Leon Romanovsky wrote:
> > > From: Leon Romanovsky <leonro@xxxxxxxxxx>
> > > 
> > > Block MR cache debugfs creation while in switchdev mode and add missing
> > > debugfs cleanup in error path.
> > 
> > Why does switchdev have anything to do with this?
> > 
> 
> Because we always had the following code in cleanup:
>    697 static void mlx5_mkey_cache_debugfs_cleanup(struct mlx5_ib_dev *dev)
>    698 {
>    699         if (!mlx5_debugfs_root || dev->is_rep)
>    700                 return;
>    701
> 
> MR cache shouldn't be used at all for IB representors, and more
> comprehensive patch will take more work than this simple solution.

That make sense, the commit message should explain it..

Jason



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