Re: [PATCH net-next v7 5/6] flow_offload: support get multi-subsystem block

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On Mon, 19 Aug 2019 07:26:07 +0000, Vlad Buslov wrote:
> On Fri 16 Aug 2019 at 20:56, Jakub Kicinski <jakub.kicinski@xxxxxxxxxxxxx> wrote:
> > Hi Vlad!
> >
> > While looking into this, would you mind also add the missing
> > flow_block_cb_is_busy() calls in the indirect handlers in the drivers?
> >
> > LMK if you're too busy, I don't want this to get forgotten :)  
> 
> Hi Jakub,
> 
> I've checked the code and it looks like only nfp driver is affected:
> 
> - I added check in nfp to lookup cb_priv with
>   nfp_flower_indr_block_cb_priv_lookup() and call
>   flow_block_cb_is_busy() if cb_priv exists.
> 
> - In mlx5 en_rep.c there is already a check that indr_priv exists, so
>   trying to lookup block_cb->cb_indent==indr_priv is redundant.
> 
> - Switch drivers (mlxsw and ocelot) take reference to block_cb on
>   FLOW_BLOCK_BIND, so they should not require any modifications.
> 
> Tell me if I missed anything. Sending the patch for nfp.

Ah, that sounds plausible, I've only checked the nfp driver.



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