netdev - Re: [PATCH 1/4] flow: virtualize flow cache entry methods

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Date:	Sun, 4 Apr 2010 19:26:36 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Timo Teräs <timo.teras@....fi>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 1/4] flow: virtualize flow cache entry methods

On Sun, Apr 04, 2010 at 02:06:55PM +0300, Timo Teräs wrote:
>
> It would still not work for policies. For every policy X we
> can get N+1 different matches with separate struct flowi contents.
> It's not possible to put single struct flowi or any other of
> the flow details in to xfrm_policy. It's a N-to-1 mapping. Not
> a 1-to-1 mapping.

Fine, move key into flow_cache_entry but the rest should still
work, no?

struct flow_cache_object {
	u16			family;
	u8			dir;
	u32			genid;
	struct flow_cache_ops  *ops;
};

struct flow_cache_entry {
	struct flow_cache_entry	*next;
	struct flowi key;
	struct flow_cache_object *obj;
};

struct xfrm_policy {
	struct flow_cache_object flo;
	...
};

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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