netdev - Re: [PATCH net-next ct-offload v2 05/13] net/sched: act_ct: Enable hardware offload of flow table entires

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Date:   Mon, 9 Mar 2020 21:25:49 +0000
From:   Edward Cree <ecree@...arflare.com>
To:     Paul Blakey <paulb@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        "Oz Shlomo" <ozsh@...lanox.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Vlad Buslov <vladbu@...lanox.com>,
        David Miller <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Jiri Pirko <jiri@...lanox.com>, Roi Dayan <roid@...lanox.com>
Subject: Re: [PATCH net-next ct-offload v2 05/13] net/sched: act_ct: Enable
 hardware offload of flow table entires

On 08/03/2020 14:10, Paul Blakey wrote:
> Pass the zone's flow table instance on the flow action to the drivers.
> Thus, allowing drivers to register FT add/del/stats callbacks.
>
> Finally, enable hardware offload on the flow table instance.
>
> Signed-off-by: Paul Blakey <paulb@...lanox.com>
> Reviewed-by: Jiri Pirko <jiri@...lanox.com>
> ---
> <snip>
> diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
> index 84d5abf..d52185d 100644
> --- a/net/sched/act_ct.c
> +++ b/net/sched/act_ct.c
> @@ -292,6 +292,7 @@ static int tcf_ct_flow_table_get(struct tcf_ct_params *params)
>  		goto err_insert;
>  
>  	ct_ft->nf_ft.type = &flowtable_ct;
> +	ct_ft->nf_ft.flags |= NF_FLOWTABLE_HW_OFFLOAD;
>  	err = nf_flow_table_init(&ct_ft->nf_ft);
>  	if (err)
>  		goto err_init;
> @@ -299,6 +300,7 @@ static int tcf_ct_flow_table_get(struct tcf_ct_params *params)
>  	__module_get(THIS_MODULE);
>  take_ref:
>  	params->ct_ft = ct_ft;
> +	params->nf_ft = &ct_ft->nf_ft;
>  	ct_ft->ref++;
>  	spin_unlock_bh(&zones_lock);
This doesn't seem to apply to net-next (34a568a244be); the label after
 the __module_get() is 'out_unlock', not 'take_ref'.  Is there a missing
 prerequisite patch?  Or am I just failing to drive 'git am' correctly?

-ed