1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __NET_GEN_STATS_H 3 #define __NET_GEN_STATS_H 4 5 #include <linux/gen_stats.h> 6 #include <linux/socket.h> 7 #include <linux/rtnetlink.h> 8 #include <linux/pkt_sched.h> 9 10 /* Note: this used to be in include/uapi/linux/gen_stats.h */ 11 struct gnet_stats_basic_packed { 12 __u64 bytes; 13 __u64 packets; 14 }; 15 16 struct gnet_stats_basic_cpu { 17 struct gnet_stats_basic_packed bstats; 18 struct u64_stats_sync syncp; 19 } __aligned(2 * sizeof(u64)); 20 21 struct net_rate_estimator; 22 23 struct gnet_dump { 24 spinlock_t * lock; 25 struct sk_buff * skb; 26 struct nlattr * tail; 27 28 /* Backward compatibility */ 29 int compat_tc_stats; 30 int compat_xstats; 31 int padattr; 32 void * xstats; 33 int xstats_len; 34 struct tc_stats tc_stats; 35 }; 36 37 int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock, 38 struct gnet_dump *d, int padattr); 39 40 int gnet_stats_start_copy_compat(struct sk_buff *skb, int type, 41 int tc_stats_type, int xstats_type, 42 spinlock_t *lock, struct gnet_dump *d, 43 int padattr); 44 45 int gnet_stats_copy_basic(const seqcount_t *running, 46 struct gnet_dump *d, 47 struct gnet_stats_basic_cpu __percpu *cpu, 48 struct gnet_stats_basic_packed *b); 49 void __gnet_stats_copy_basic(const seqcount_t *running, 50 struct gnet_stats_basic_packed *bstats, 51 struct gnet_stats_basic_cpu __percpu *cpu, 52 struct gnet_stats_basic_packed *b); 53 int gnet_stats_copy_basic_hw(const seqcount_t *running, 54 struct gnet_dump *d, 55 struct gnet_stats_basic_cpu __percpu *cpu, 56 struct gnet_stats_basic_packed *b); 57 int gnet_stats_copy_rate_est(struct gnet_dump *d, 58 struct net_rate_estimator __rcu **ptr); 59 int gnet_stats_copy_queue(struct gnet_dump *d, 60 struct gnet_stats_queue __percpu *cpu_q, 61 struct gnet_stats_queue *q, __u32 qlen); 62 void __gnet_stats_copy_queue(struct gnet_stats_queue *qstats, 63 const struct gnet_stats_queue __percpu *cpu_q, 64 const struct gnet_stats_queue *q, __u32 qlen); 65 int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len); 66 67 int gnet_stats_finish_copy(struct gnet_dump *d); 68 69 int gen_new_estimator(struct gnet_stats_basic_packed *bstats, 70 struct gnet_stats_basic_cpu __percpu *cpu_bstats, 71 struct net_rate_estimator __rcu **rate_est, 72 spinlock_t *lock, 73 seqcount_t *running, struct nlattr *opt); 74 void gen_kill_estimator(struct net_rate_estimator __rcu **ptr); 75 int gen_replace_estimator(struct gnet_stats_basic_packed *bstats, 76 struct gnet_stats_basic_cpu __percpu *cpu_bstats, 77 struct net_rate_estimator __rcu **ptr, 78 spinlock_t *lock, 79 seqcount_t *running, struct nlattr *opt); 80 bool gen_estimator_active(struct net_rate_estimator __rcu **ptr); 81 bool gen_estimator_read(struct net_rate_estimator __rcu **ptr, 82 struct gnet_stats_rate_est64 *sample); 83 #endif 84