2 files changed, 107 insertions, 0 deletions
diff --git a/include/linux/gen_stats.h b/include/linux/gen_stats.h
new file mode 100644
index 000000000000..ab631c3571ce
--- /dev/null
+++ b/include/linux/gen_stats.h
@@ -0,0 +1,62 @@
+#ifndef __LINUX_GEN_STATS_H
+#define __LINUX_GEN_STATS_H
+
+#include <linux/types.h>
+
+enum {
+	TCA_STATS_UNSPEC,
+	TCA_STATS_BASIC,
+	TCA_STATS_RATE_EST,
+	TCA_STATS_QUEUE,
+	TCA_STATS_APP,
+	__TCA_STATS_MAX,
+};
+#define TCA_STATS_MAX (__TCA_STATS_MAX - 1)
+
+/**
+ * @bytes: number of seen bytes
+ * @packets: number of seen packets
+ */
+struct gnet_stats_basic
+{
+	__u64	bytes;
+	__u32	packets;
+};
+
+/**
+ * @bps: current byte rate
+ * @pps: current packet rate
+ */
+struct gnet_stats_rate_est
+{
+	__u32	bps;
+	__u32	pps;
+};
+
+/**
+ * @qlen: queue length
+ * @backlog: backlog size of queue
+ * @drops: number of dropped packets
+ * @requeues: number of requeues
+ */
+struct gnet_stats_queue
+{
+	__u32	qlen;
+	__u32	backlog;
+	__u32	drops;
+	__u32	requeues;
+	__u32	overlimits;
+};
+
+/**
+ * @interval: sampling period
+ * @ewma_log: the log of measurement window weight
+ */
+struct gnet_estimator
+{
+	signed char	interval;
+	unsigned char	ewma_log;
+};
+
+
+#endif /* __LINUX_GEN_STATS_H */
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
new file mode 100644
index 000000000000..e3ec2ebdd62e
--- /dev/null
+++ b/include/net/gen_stats.h
@@ -0,0 +1,45 @@
+#ifndef __NET_GEN_STATS_H
+#define __NET_GEN_STATS_H
+
+#include <linux/gen_stats.h>
+#include <linux/socket.h>
+#include <linux/rtnetlink.h>
+#include <linux/pkt_sched.h>
+
+struct gnet_dump
+{
+	spinlock_t *      lock;
+	struct sk_buff *  skb;
+	struct rtattr *   tail;
+
+	/* Backward compatability */
+	int               compat_tc_stats;
+	int               compat_xstats;
+	struct rtattr *   xstats;
+	struct tc_stats   tc_stats;
+};
+
+extern int gnet_stats_start_copy(struct sk_buff *skb, int type,
+				 spinlock_t *lock, struct gnet_dump *d);
+
+extern int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
+					int tc_stats_type,int xstats_type,
+					spinlock_t *lock, struct gnet_dump *d);
+
+extern int gnet_stats_copy_basic(struct gnet_dump *d,
+				 struct gnet_stats_basic *b);
+extern int gnet_stats_copy_rate_est(struct gnet_dump *d,
+				    struct gnet_stats_rate_est *r);
+extern int gnet_stats_copy_queue(struct gnet_dump *d,
+				 struct gnet_stats_queue *q);
+extern int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
+
+extern int gnet_stats_finish_copy(struct gnet_dump *d);
+
+extern int gen_new_estimator(struct gnet_stats_basic *bstats,
+			     struct gnet_stats_rate_est *rate_est,
+			     spinlock_t *stats_lock, struct rtattr *opt);
+extern void gen_kill_estimator(struct gnet_stats_basic *bstats,
+			       struct gnet_stats_rate_est *rate_est);
+
+#endif