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xfrm: remove flow cache

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After rcu conversions performance degradation in forward tests isn't that
noticeable anymore.

See next patch for some numbers.

A followup patcg could then also remove genid from the policies
as we do not cache bundles anymore.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2017-07-17 13:57:26 +02:00 • committed by David S. Miller
parent bd45c539bf
commit 09c7570480
13 changed files with 2 additions and 734 deletions
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34
include/net/flow.h
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@ -218,40 +218,6 @@ static inline unsigned int flow_key_size(u16 family)
return 0;
}
#define FLOW_DIR_IN 0
#define FLOW_DIR_OUT 1
#define FLOW_DIR_FWD 2
struct net;
struct sock;
struct flow_cache_ops;
struct flow_cache_object {
const struct flow_cache_ops *ops;
};
struct flow_cache_ops {
struct flow_cache_object *(*get)(struct flow_cache_object *);
int (*check)(struct flow_cache_object *);
void (*delete)(struct flow_cache_object *);
};
typedef struct flow_cache_object *(*flow_resolve_t)(
struct net *net, const struct flowi *key, u16 family,
u8 dir, struct flow_cache_object *oldobj, void *ctx);
struct flow_cache_object *flow_cache_lookup(struct net *net,
const struct flowi *key, u16 family,
u8 dir, flow_resolve_t resolver,
void *ctx);
int flow_cache_init(struct net *net);
void flow_cache_fini(struct net *net);
void flow_cache_hp_init(void);
void flow_cache_flush(struct net *net);
void flow_cache_flush_deferred(struct net *net);
extern atomic_t flow_cache_genid;
__u32 __get_hash_from_flowi6(const struct flowi6 *fl6, struct flow_keys *keys);
static inline __u32 get_hash_from_flowi6(const struct flowi6 *fl6)