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-rw-r--r--include/net/act_api.h89
1 files changed, 65 insertions, 24 deletions
diff --git a/include/net/act_api.h b/include/net/act_api.h
index 87214927314a..404df8557f6a 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -7,6 +7,7 @@
*/
#include <linux/refcount.h>
+#include <net/flow_offload.h>
#include <net/sch_generic.h>
#include <net/pkt_sched.h>
#include <net/net_namespace.h>
@@ -30,20 +31,21 @@ struct tc_action {
atomic_t tcfa_bindcnt;
int tcfa_action;
struct tcf_t tcfa_tm;
- struct gnet_stats_basic_packed tcfa_bstats;
- struct gnet_stats_basic_packed tcfa_bstats_hw;
+ 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_cpu __percpu *cpu_bstats;
- struct gnet_stats_basic_cpu __percpu *cpu_bstats_hw;
+ 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 *act_cookie;
+ 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
@@ -58,6 +60,15 @@ struct tc_action {
#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.
*/
@@ -80,10 +91,15 @@ static inline void tcf_tm_dump(struct tcf_t *dtm, const struct tcf_t *stm)
dtm->expires = jiffies_to_clock_t(stm->expires);
}
-#ifdef CONFIG_NET_CLS_ACT
+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;
-#define ACT_P_CREATED 1
-#define ACT_P_DELETED 1
+ return hw_stats;
+}
typedef void (*tc_action_priv_destructor)(void *priv);
@@ -91,6 +107,7 @@ 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 *,
@@ -99,8 +116,8 @@ struct tc_action_ops {
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, int ovr,
- int bind, bool rtnl_held, struct tcf_proto *tp,
+ 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,
@@ -113,8 +130,17 @@ struct tc_action_ops {
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_BOUND 0
+#define ACT_P_CREATED 1
+#define ACT_P_DELETED 1
+
struct tc_action_net {
struct tcf_idrinfo *idrinfo;
const struct tc_action_ops *ops;
@@ -166,41 +192,39 @@ 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[], int init_res[]);
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, bool strict);
-
-static inline int tcf_idr_release(struct tc_action *a, bool bind)
-{
- return __tcf_idr_release(a, bind, false);
-}
+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);
+#define NET_ACT_ALIAS_PREFIX "net-act-"
+#define MODULE_ALIAS_NET_ACT(kind) MODULE_ALIAS(NET_ACT_ALIAS_PREFIX kind)
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, char *name, int ovr, int bind,
- struct tc_action *actions[], size_t *attr_size,
- bool rtnl_held, struct netlink_ext_ack *extack);
+ 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, u32 flags,
+ 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,
- char *name, int ovr, int bind,
- bool rtnl_held,
- struct netlink_ext_ack *extack);
+ 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_cpu_update(this_cpu_ptr(a->cpu_bstats), skb);
+ bstats_update(this_cpu_ptr(a->cpu_bstats), skb);
return;
}
spin_lock(&a->tcfa_lock);
@@ -234,11 +258,28 @@ 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,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.