[linux-block.git] / include / net / act_api.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NET_ACT_API_H
#define __NET_ACT_API_H

/*
 * Public action API for classifiers/qdiscs
*/

#include <linux/refcount.h>
#include <net/flow_offload.h>
#include <net/sch_generic.h>
#include <net/pkt_sched.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>

struct tcf_idrinfo {
	struct mutex	lock;
	struct idr	action_idr;
	struct net	*net;
};

struct tc_action_ops;

struct tc_action {
	const struct tc_action_ops	*ops;
	__u32				type; /* for backward compat(TCA_OLD_COMPAT) */
	struct tcf_idrinfo		*idrinfo;

	u32				tcfa_index;
	refcount_t			tcfa_refcnt;
	atomic_t			tcfa_bindcnt;
	int				tcfa_action;
	struct tcf_t			tcfa_tm;
	struct gnet_stats_basic_sync	tcfa_bstats;
	struct gnet_stats_basic_sync	tcfa_bstats_hw;
	struct gnet_stats_queue		tcfa_qstats;
	struct net_rate_estimator __rcu *tcfa_rate_est;
	spinlock_t			tcfa_lock;
	struct gnet_stats_basic_sync __percpu *cpu_bstats;
	struct gnet_stats_basic_sync __percpu *cpu_bstats_hw;
	struct gnet_stats_queue __percpu *cpu_qstats;
	struct tc_cookie	__rcu *user_cookie;
	struct tcf_chain	__rcu *goto_chain;
	u32			tcfa_flags;
	u8			hw_stats;
	u8			used_hw_stats;
	bool			used_hw_stats_valid;
	u32			in_hw_count;
};
#define tcf_index	common.tcfa_index
#define tcf_refcnt	common.tcfa_refcnt
#define tcf_bindcnt	common.tcfa_bindcnt
#define tcf_action	common.tcfa_action
#define tcf_tm		common.tcfa_tm
#define tcf_bstats	common.tcfa_bstats
#define tcf_qstats	common.tcfa_qstats
#define tcf_rate_est	common.tcfa_rate_est
#define tcf_lock	common.tcfa_lock

#define TCA_ACT_HW_STATS_ANY (TCA_ACT_HW_STATS_IMMEDIATE | \
			      TCA_ACT_HW_STATS_DELAYED)

/* Reserve 16 bits for user-space. See TCA_ACT_FLAGS_NO_PERCPU_STATS. */
#define TCA_ACT_FLAGS_USER_BITS 16
#define TCA_ACT_FLAGS_USER_MASK 0xffff
#define TCA_ACT_FLAGS_POLICE	(1U << TCA_ACT_FLAGS_USER_BITS)
#define TCA_ACT_FLAGS_BIND	(1U << (TCA_ACT_FLAGS_USER_BITS + 1))
#define TCA_ACT_FLAGS_REPLACE	(1U << (TCA_ACT_FLAGS_USER_BITS + 2))
#define TCA_ACT_FLAGS_NO_RTNL	(1U << (TCA_ACT_FLAGS_USER_BITS + 3))
#define TCA_ACT_FLAGS_AT_INGRESS	(1U << (TCA_ACT_FLAGS_USER_BITS + 4))

/* Update lastuse only if needed, to avoid dirtying a cache line.
 * We use a temp variable to avoid fetching jiffies twice.
 */
static inline void tcf_lastuse_update(struct tcf_t *tm)
{
	unsigned long now = jiffies;

	if (tm->lastuse != now)
		tm->lastuse = now;
	if (unlikely(!tm->firstuse))
		tm->firstuse = now;
}

static inline void tcf_tm_dump(struct tcf_t *dtm, const struct tcf_t *stm)
{
	dtm->install = jiffies_to_clock_t(jiffies - stm->install);
	dtm->lastuse = jiffies_to_clock_t(jiffies - stm->lastuse);
	dtm->firstuse = stm->firstuse ?
		jiffies_to_clock_t(jiffies - stm->firstuse) : 0;
	dtm->expires = jiffies_to_clock_t(stm->expires);
}

static inline enum flow_action_hw_stats tc_act_hw_stats(u8 hw_stats)
{
	if (WARN_ON_ONCE(hw_stats > TCA_ACT_HW_STATS_ANY))
		return FLOW_ACTION_HW_STATS_DONT_CARE;
	else if (!hw_stats)
		return FLOW_ACTION_HW_STATS_DISABLED;

	return hw_stats;
}

typedef void (*tc_action_priv_destructor)(void *priv);

struct tc_action_ops {
	struct list_head head;
	char    kind[IFNAMSIZ];
	enum tca_id  id; /* identifier should match kind */
	unsigned int	net_id;
	size_t	size;
	struct module		*owner;
	int     (*act)(struct sk_buff *, const struct tc_action *,
		       struct tcf_result *); /* called under RCU BH lock*/
	int     (*dump)(struct sk_buff *, struct tc_action *, int, int);
	void	(*cleanup)(struct tc_action *);
	int     (*lookup)(struct net *net, struct tc_action **a, u32 index);
	int     (*init)(struct net *net, struct nlattr *nla,
			struct nlattr *est, struct tc_action **act,
			struct tcf_proto *tp,
			u32 flags, struct netlink_ext_ack *extack);
	int     (*walk)(struct net *, struct sk_buff *,
			struct netlink_callback *, int,
			const struct tc_action_ops *,
			struct netlink_ext_ack *);
	void	(*stats_update)(struct tc_action *, u64, u64, u64, u64, bool);
	size_t  (*get_fill_size)(const struct tc_action *act);
	struct net_device *(*get_dev)(const struct tc_action *a,
				      tc_action_priv_destructor *destructor);
	struct psample_group *
	(*get_psample_group)(const struct tc_action *a,
			     tc_action_priv_destructor *destructor);
	int     (*offload_act_setup)(struct tc_action *act, void *entry_data,
				     u32 *index_inc, bool bind,
				     struct netlink_ext_ack *extack);
};

#ifdef CONFIG_NET_CLS_ACT

#define ACT_P_CREATED 1
#define ACT_P_DELETED 1

struct tc_action_net {
	struct tcf_idrinfo *idrinfo;
	const struct tc_action_ops *ops;
};

static inline
int tc_action_net_init(struct net *net, struct tc_action_net *tn,
		       const struct tc_action_ops *ops)
{
	int err = 0;

	tn->idrinfo = kmalloc(sizeof(*tn->idrinfo), GFP_KERNEL);
	if (!tn->idrinfo)
		return -ENOMEM;
	tn->ops = ops;
	tn->idrinfo->net = net;
	mutex_init(&tn->idrinfo->lock);
	idr_init(&tn->idrinfo->action_idr);
	return err;
}

void tcf_idrinfo_destroy(const struct tc_action_ops *ops,
			 struct tcf_idrinfo *idrinfo);

static inline void tc_action_net_exit(struct list_head *net_list,
				      unsigned int id)
{
	struct net *net;

	rtnl_lock();
	list_for_each_entry(net, net_list, exit_list) {
		struct tc_action_net *tn = net_generic(net, id);

		tcf_idrinfo_destroy(tn->ops, tn->idrinfo);
		kfree(tn->idrinfo);
	}
	rtnl_unlock();
}

int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb,
		       struct netlink_callback *cb, int type,
		       const struct tc_action_ops *ops,
		       struct netlink_ext_ack *extack);
int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index);
int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
		   struct tc_action **a, const struct tc_action_ops *ops,
		   int bind, bool cpustats, u32 flags);
int tcf_idr_create_from_flags(struct tc_action_net *tn, u32 index,
			      struct nlattr *est, struct tc_action **a,
			      const struct tc_action_ops *ops, int bind,
			      u32 flags);
void tcf_idr_insert_many(struct tc_action *actions[]);
void tcf_idr_cleanup(struct tc_action_net *tn, u32 index);
int tcf_idr_check_alloc(struct tc_action_net *tn, u32 *index,
			struct tc_action **a, int bind);
int tcf_idr_release(struct tc_action *a, bool bind);

int tcf_register_action(struct tc_action_ops *a, struct pernet_operations *ops);
int tcf_unregister_action(struct tc_action_ops *a,
			  struct pernet_operations *ops);
int tcf_action_destroy(struct tc_action *actions[], int bind);
int tcf_action_exec(struct sk_buff *skb, struct tc_action **actions,
		    int nr_actions, struct tcf_result *res);
int tcf_action_init(struct net *net, struct tcf_proto *tp, struct nlattr *nla,
		    struct nlattr *est,
		    struct tc_action *actions[], int init_res[], size_t *attr_size,
		    u32 flags, u32 fl_flags, struct netlink_ext_ack *extack);
struct tc_action_ops *tc_action_load_ops(struct nlattr *nla, bool police,
					 bool rtnl_held,
					 struct netlink_ext_ack *extack);
struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
				    struct nlattr *nla, struct nlattr *est,
				    struct tc_action_ops *a_o, int *init_res,
				    u32 flags, struct netlink_ext_ack *extack);
int tcf_action_dump(struct sk_buff *skb, struct tc_action *actions[], int bind,
		    int ref, bool terse);
int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);

static inline void tcf_action_update_bstats(struct tc_action *a,
					    struct sk_buff *skb)
{
	if (likely(a->cpu_bstats)) {
		bstats_update(this_cpu_ptr(a->cpu_bstats), skb);
		return;
	}
	spin_lock(&a->tcfa_lock);
	bstats_update(&a->tcfa_bstats, skb);
	spin_unlock(&a->tcfa_lock);
}

static inline void tcf_action_inc_drop_qstats(struct tc_action *a)
{
	if (likely(a->cpu_qstats)) {
		qstats_drop_inc(this_cpu_ptr(a->cpu_qstats));
		return;
	}
	spin_lock(&a->tcfa_lock);
	qstats_drop_inc(&a->tcfa_qstats);
	spin_unlock(&a->tcfa_lock);
}

static inline void tcf_action_inc_overlimit_qstats(struct tc_action *a)
{
	if (likely(a->cpu_qstats)) {
		qstats_overlimit_inc(this_cpu_ptr(a->cpu_qstats));
		return;
	}
	spin_lock(&a->tcfa_lock);
	qstats_overlimit_inc(&a->tcfa_qstats);
	spin_unlock(&a->tcfa_lock);
}

void tcf_action_update_stats(struct tc_action *a, u64 bytes, u64 packets,
			     u64 drops, bool hw);
int tcf_action_copy_stats(struct sk_buff *, struct tc_action *, int);

int tcf_action_update_hw_stats(struct tc_action *action);
int tcf_action_reoffload_cb(flow_indr_block_bind_cb_t *cb,
			    void *cb_priv, bool add);
int tcf_action_check_ctrlact(int action, struct tcf_proto *tp,
			     struct tcf_chain **handle,
			     struct netlink_ext_ack *newchain);
struct tcf_chain *tcf_action_set_ctrlact(struct tc_action *a, int action,
					 struct tcf_chain *newchain);

#ifdef CONFIG_INET
DECLARE_STATIC_KEY_FALSE(tcf_frag_xmit_count);
#endif

int tcf_dev_queue_xmit(struct sk_buff *skb, int (*xmit)(struct sk_buff *skb));

#else /* !CONFIG_NET_CLS_ACT */

static inline int tcf_action_reoffload_cb(flow_indr_block_bind_cb_t *cb,
					  void *cb_priv, bool add) {
	return 0;
}

#endif /* CONFIG_NET_CLS_ACT */

static inline void tcf_action_stats_update(struct tc_action *a, u64 bytes,
					   u64 packets, u64 drops,
					   u64 lastuse, bool hw)
{
#ifdef CONFIG_NET_CLS_ACT
	if (!a->ops->stats_update)
		return;

	a->ops->stats_update(a, bytes, packets, drops, lastuse, hw);
#endif
}


#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef __NET_ACT_API_H
	3	#define __NET_ACT_API_H
	4
	5	/*
0b0f43fe JHS	6	* Public action API for classifiers/qdiscs
0b0f43fe JHS	7	*/
1da177e4	8
036bb443	9	#include <linux/refcount.h>
13926d19	10	#include <net/flow_offload.h>
1da177e4 LT	11	#include <net/sch_generic.h>
1da177e4 LT	12	#include <net/pkt_sched.h>
ddf97ccd WC	13	#include <net/net_namespace.h>
ddf97ccd WC	14	#include <net/netns/generic.h>
1da177e4	15
65a206c0	16	struct tcf_idrinfo {
95278dda	17	struct mutex lock;
65a206c0	18	struct idr action_idr;
981471bd	19	struct net *net;
a85a970a WC	20	};
	21
	22	struct tc_action_ops;
	23
	24	struct tc_action {
	25	const struct tc_action_ops *ops;
ec0595cc	26	__u32 type; /* for backward compat(TCA_OLD_COMPAT) */
65a206c0	27	struct tcf_idrinfo *idrinfo;
a85a970a	28
ec0595cc	29	u32 tcfa_index;
036bb443 VB	30	refcount_t tcfa_refcnt;
036bb443 VB	31	atomic_t tcfa_bindcnt;
ec0595cc WC	32	int tcfa_action;
ec0595cc WC	33	struct tcf_t tcfa_tm;
50dc9a85 AD	34	struct gnet_stats_basic_sync tcfa_bstats;
50dc9a85 AD	35	struct gnet_stats_basic_sync tcfa_bstats_hw;
ec0595cc	36	struct gnet_stats_queue tcfa_qstats;
1c0d32fd	37	struct net_rate_estimator __rcu *tcfa_rate_est;
ec0595cc	38	spinlock_t tcfa_lock;
50dc9a85 AD	39	struct gnet_stats_basic_sync __percpu *cpu_bstats;
50dc9a85 AD	40	struct gnet_stats_basic_sync __percpu *cpu_bstats_hw;
519c818e	41	struct gnet_stats_queue __percpu *cpu_qstats;
db4b4902	42	struct tc_cookie __rcu *user_cookie;
ee3bbfe8	43	struct tcf_chain __rcu *goto_chain;
e3822678	44	u32 tcfa_flags;
0dfb2d82	45	u8 hw_stats;
93a129eb JP	46	u8 used_hw_stats;
93a129eb JP	47	bool used_hw_stats_valid;
7adc5765	48	u32 in_hw_count;
e9ce1cd3	49	};
ec0595cc WC	50	#define tcf_index common.tcfa_index
	51	#define tcf_refcnt common.tcfa_refcnt
	52	#define tcf_bindcnt common.tcfa_bindcnt
ec0595cc WC	53	#define tcf_action common.tcfa_action
	54	#define tcf_tm common.tcfa_tm
	55	#define tcf_bstats common.tcfa_bstats
	56	#define tcf_qstats common.tcfa_qstats
	57	#define tcf_rate_est common.tcfa_rate_est
	58	#define tcf_lock common.tcfa_lock
e9ce1cd3	59
0dfb2d82 JK	60	#define TCA_ACT_HW_STATS_ANY (TCA_ACT_HW_STATS_IMMEDIATE \| \
0dfb2d82 JK	61	TCA_ACT_HW_STATS_DELAYED)
44f86580	62
695176bf CW	63	/* Reserve 16 bits for user-space. See TCA_ACT_FLAGS_NO_PERCPU_STATS. */
	64	#define TCA_ACT_FLAGS_USER_BITS 16
	65	#define TCA_ACT_FLAGS_USER_MASK 0xffff
	66	#define TCA_ACT_FLAGS_POLICE (1U << TCA_ACT_FLAGS_USER_BITS)
	67	#define TCA_ACT_FLAGS_BIND (1U << (TCA_ACT_FLAGS_USER_BITS + 1))
	68	#define TCA_ACT_FLAGS_REPLACE (1U << (TCA_ACT_FLAGS_USER_BITS + 2))
	69	#define TCA_ACT_FLAGS_NO_RTNL (1U << (TCA_ACT_FLAGS_USER_BITS + 3))
4a6a676f	70	#define TCA_ACT_FLAGS_AT_INGRESS (1U << (TCA_ACT_FLAGS_USER_BITS + 4))
695176bf	71
56e5d1ca ED	72	/* Update lastuse only if needed, to avoid dirtying a cache line.
	73	* We use a temp variable to avoid fetching jiffies twice.
	74	*/
	75	static inline void tcf_lastuse_update(struct tcf_t *tm)
	76	{
	77	unsigned long now = jiffies;
	78
	79	if (tm->lastuse != now)
	80	tm->lastuse = now;
53eb440f JHS	81	if (unlikely(!tm->firstuse))
53eb440f JHS	82	tm->firstuse = now;
56e5d1ca ED	83	}
56e5d1ca ED	84
48d8ee16 JHS	85	static inline void tcf_tm_dump(struct tcf_t dtm, const struct tcf_t stm)
	86	{
	87	dtm->install = jiffies_to_clock_t(jiffies - stm->install);
	88	dtm->lastuse = jiffies_to_clock_t(jiffies - stm->lastuse);
b15e6263 RM	89	dtm->firstuse = stm->firstuse ?
b15e6263 RM	90	jiffies_to_clock_t(jiffies - stm->firstuse) : 0;
48d8ee16 JHS	91	dtm->expires = jiffies_to_clock_t(stm->expires);
	92	}
	93
c54e1d92 BZ	94	static inline enum flow_action_hw_stats tc_act_hw_stats(u8 hw_stats)
	95	{
	96	if (WARN_ON_ONCE(hw_stats > TCA_ACT_HW_STATS_ANY))
	97	return FLOW_ACTION_HW_STATS_DONT_CARE;
	98	else if (!hw_stats)
	99	return FLOW_ACTION_HW_STATS_DISABLED;
	100
	101	return hw_stats;
	102	}
	103
4a5da47d VB	104	typedef void (tc_action_priv_destructor)(void priv);
4a5da47d VB	105
e9ce1cd3	106	struct tc_action_ops {
1f747c26	107	struct list_head head;
1da177e4	108	char kind[IFNAMSIZ];
eddd2cf1	109	enum tca_id id; /* identifier should match kind */
acd0a7ab	110	unsigned int net_id;
a85a970a	111	size_t size;
1da177e4	112	struct module *owner;
0b0f43fe	113	int (act)(struct sk_buff , const struct tc_action *,
7fd4b288	114	struct tcf_result ); / called under RCU BH lock*/
e9ce1cd3	115	int (dump)(struct sk_buff , struct tc_action *, int, int);
9a63b255	116	void (cleanup)(struct tc_action );
f061b48c	117	int (lookup)(struct net net, struct tc_action **a, u32 index);
c1b52739	118	int (init)(struct net net, struct nlattr *nla,
695176bf CW	119	struct nlattr est, struct tc_action *act,
695176bf CW	120	struct tcf_proto *tp,
abbb0d33	121	u32 flags, struct netlink_ext_ack *extack);
ddf97ccd	122	int (walk)(struct net , struct sk_buff *,
1af85155	123	struct netlink_callback *, int,
41780105 AA	124	const struct tc_action_ops *,
41780105 AA	125	struct netlink_ext_ack *);
4b61d3e8	126	void (stats_update)(struct tc_action , u64, u64, u64, u64, bool);
a03b91b1	127	size_t (get_fill_size)(const struct tc_action act);
470d5060 VB	128	struct net_device (get_dev)(const struct tc_action *a,
470d5060 VB	129	tc_action_priv_destructor *destructor);
4a5da47d VB	130	struct psample_group *
	131	(get_psample_group)(const struct tc_action a,
	132	tc_action_priv_destructor *destructor);
c54e1d92	133	int (offload_act_setup)(struct tc_action act, void *entry_data,
c2ccf84e IS	134	u32 *index_inc, bool bind,
c2ccf84e IS	135	struct netlink_ext_ack *extack);
ddf97ccd WC	136	};
ddf97ccd WC	137
2a7d228f PT	138	#ifdef CONFIG_NET_CLS_ACT
	139
	140	#define ACT_P_CREATED 1
	141	#define ACT_P_DELETED 1
	142
ddf97ccd	143	struct tc_action_net {
65a206c0	144	struct tcf_idrinfo *idrinfo;
ddf97ccd	145	const struct tc_action_ops *ops;
1da177e4 LT	146	};
1da177e4 LT	147
ddf97ccd	148	static inline
981471bd	149	int tc_action_net_init(struct net net, struct tc_action_net tn,
c7e460ce	150	const struct tc_action_ops *ops)
ddf97ccd WC	151	{
	152	int err = 0;
	153
65a206c0 CM	154	tn->idrinfo = kmalloc(sizeof(*tn->idrinfo), GFP_KERNEL);
65a206c0 CM	155	if (!tn->idrinfo)
ddf97ccd WC	156	return -ENOMEM;
ddf97ccd WC	157	tn->ops = ops;
981471bd	158	tn->idrinfo->net = net;
95278dda	159	mutex_init(&tn->idrinfo->lock);
65a206c0	160	idr_init(&tn->idrinfo->action_idr);
ddf97ccd WC	161	return err;
	162	}
	163
65a206c0 CM	164	void tcf_idrinfo_destroy(const struct tc_action_ops *ops,
65a206c0 CM	165	struct tcf_idrinfo *idrinfo);
ddf97ccd	166
039af9c6 CW	167	static inline void tc_action_net_exit(struct list_head *net_list,
039af9c6 CW	168	unsigned int id)
ddf97ccd	169	{
039af9c6 CW	170	struct net *net;
039af9c6 CW	171
a159d3c4	172	rtnl_lock();
039af9c6 CW	173	list_for_each_entry(net, net_list, exit_list) {
	174	struct tc_action_net *tn = net_generic(net, id);
	175
	176	tcf_idrinfo_destroy(tn->ops, tn->idrinfo);
	177	kfree(tn->idrinfo);
	178	}
a159d3c4	179	rtnl_unlock();
ddf97ccd WC	180	}
	181
	182	int tcf_generic_walker(struct tc_action_net tn, struct sk_buff skb,
	183	struct netlink_callback *cb, int type,
b3620145 AA	184	const struct tc_action_ops *ops,
b3620145 AA	185	struct netlink_ext_ack *extack);
65a206c0	186	int tcf_idr_search(struct tc_action_net tn, struct tc_action *a, u32 index);
65a206c0 CM	187	int tcf_idr_create(struct tc_action_net tn, u32 index, struct nlattr est,
65a206c0 CM	188	struct tc_action *a, const struct tc_action_ops ops,
e3822678 VB	189	int bind, bool cpustats, u32 flags);
	190	int tcf_idr_create_from_flags(struct tc_action_net *tn, u32 index,
	191	struct nlattr est, struct tc_action *a,
	192	const struct tc_action_ops *ops, int bind,
	193	u32 flags);
396d7f23	194	void tcf_idr_insert_many(struct tc_action *actions[]);
0190c1d4 VB	195	void tcf_idr_cleanup(struct tc_action_net *tn, u32 index);
	196	int tcf_idr_check_alloc(struct tc_action_net tn, u32 index,
	197	struct tc_action **a, int bind);
b3650bf7	198	int tcf_idr_release(struct tc_action *a, bool bind);
28e6b67f	199
ddf97ccd	200	int tcf_register_action(struct tc_action_ops a, struct pernet_operations ops);
0b0f43fe JHS	201	int tcf_unregister_action(struct tc_action_ops *a,
0b0f43fe JHS	202	struct pernet_operations *ops);
90b73b77	203	int tcf_action_destroy(struct tc_action *actions[], int bind);
22dc13c8 WC	204	int tcf_action_exec(struct sk_buff skb, struct tc_action *actions,
22dc13c8 WC	205	int nr_actions, struct tcf_result *res);
9fb9f251	206	int tcf_action_init(struct net net, struct tcf_proto tp, struct nlattr *nla,
695176bf	207	struct nlattr *est,
87c750e8	208	struct tc_action actions[], int init_res[], size_t attr_size,
c86e0209	209	u32 flags, u32 fl_flags, struct netlink_ext_ack *extack);
695176bf	210	struct tc_action_ops tc_action_load_ops(struct nlattr nla, bool police,
d349f997 CW	211	bool rtnl_held,
d349f997 CW	212	struct netlink_ext_ack *extack);
9fb9f251 JP	213	struct tc_action tcf_action_init_1(struct net net, struct tcf_proto *tp,
9fb9f251 JP	214	struct nlattr nla, struct nlattr est,
87c750e8	215	struct tc_action_ops a_o, int init_res,
695176bf	216	u32 flags, struct netlink_ext_ack *extack);
90b73b77	217	int tcf_action_dump(struct sk_buff skb, struct tc_action actions[], int bind,
ca44b738	218	int ref, bool terse);
5c15257f JP	219	int tcf_action_dump_old(struct sk_buff skb, struct tc_action a, int, int);
5c15257f JP	220	int tcf_action_dump_1(struct sk_buff skb, struct tc_action a, int, int);
5e1ad95b VB	221
	222	static inline void tcf_action_update_bstats(struct tc_action *a,
	223	struct sk_buff *skb)
	224	{
5e174d5e	225	if (likely(a->cpu_bstats)) {
50dc9a85	226	bstats_update(this_cpu_ptr(a->cpu_bstats), skb);
5e174d5e VB	227	return;
	228	}
	229	spin_lock(&a->tcfa_lock);
	230	bstats_update(&a->tcfa_bstats, skb);
	231	spin_unlock(&a->tcfa_lock);
26b537a8 VB	232	}
	233
	234	static inline void tcf_action_inc_drop_qstats(struct tc_action *a)
	235	{
5e174d5e VB	236	if (likely(a->cpu_qstats)) {
	237	qstats_drop_inc(this_cpu_ptr(a->cpu_qstats));
	238	return;
	239	}
	240	spin_lock(&a->tcfa_lock);
	241	qstats_drop_inc(&a->tcfa_qstats);
	242	spin_unlock(&a->tcfa_lock);
26b537a8 VB	243	}
	244
	245	static inline void tcf_action_inc_overlimit_qstats(struct tc_action *a)
	246	{
5e174d5e VB	247	if (likely(a->cpu_qstats)) {
	248	qstats_overlimit_inc(this_cpu_ptr(a->cpu_qstats));
	249	return;
	250	}
	251	spin_lock(&a->tcfa_lock);
	252	qstats_overlimit_inc(&a->tcfa_qstats);
	253	spin_unlock(&a->tcfa_lock);
26b537a8 VB	254	}
26b537a8 VB	255
4b61d3e8 PL	256	void tcf_action_update_stats(struct tc_action *a, u64 bytes, u64 packets,
4b61d3e8 PL	257	u64 drops, bool hw);
5c15257f	258	int tcf_action_copy_stats(struct sk_buff , struct tc_action , int);
00175aec	259
c7a66f8d	260	int tcf_action_update_hw_stats(struct tc_action *action);
13926d19 BZ	261	int tcf_action_reoffload_cb(flow_indr_block_bind_cb_t *cb,
13926d19 BZ	262	void *cb_priv, bool add);
85d0966f DC	263	int tcf_action_check_ctrlact(int action, struct tcf_proto *tp,
	264	struct tcf_chain **handle,
	265	struct netlink_ext_ack *newchain);
	266	struct tcf_chain tcf_action_set_ctrlact(struct tc_action a, int action,
	267	struct tcf_chain *newchain);
c129412f	268
	269	#ifdef CONFIG_INET
	270	DECLARE_STATIC_KEY_FALSE(tcf_frag_xmit_count);
	271	#endif
	272
	273	int tcf_dev_queue_xmit(struct sk_buff skb, int (xmit)(struct sk_buff *skb));
13926d19 BZ	274
	275	#else /* !CONFIG_NET_CLS_ACT */
	276
	277	static inline int tcf_action_reoffload_cb(flow_indr_block_bind_cb_t *cb,
	278	void *cb_priv, bool add) {
	279	return 0;
	280	}
	281
2734437e	282	#endif /* CONFIG_NET_CLS_ACT */
86cb13e4	283
38040702	284	static inline void tcf_action_stats_update(struct tc_action *a, u64 bytes,
4b61d3e8 PL	285	u64 packets, u64 drops,
4b61d3e8 PL	286	u64 lastuse, bool hw)
38040702	287	{
2734437e	288	#ifdef CONFIG_NET_CLS_ACT
38040702 AV	289	if (!a->ops->stats_update)
	290	return;
	291
4b61d3e8	292	a->ops->stats_update(a, bytes, packets, drops, lastuse, hw);
2734437e	293	#endif
38040702 AV	294	}
38040702 AV	295
b3f55bdd	296
1da177e4	297	#endif