1 files changed, 78 insertions, 0 deletions
diff --git a/lib/trace-cmd/include/trace-tsync-local.h b/lib/trace-cmd/include/trace-tsync-local.h
new file mode 100644
index 00000000..5bbc1db6
--- /dev/null
+++ b/lib/trace-cmd/include/trace-tsync-local.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: LGPL-2.1 */
+/*
+ * Copyright (C) 2019, VMware, Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
+ *
+ */
+#ifndef _TRACE_TSYNC_LOCAL_H
+#define _TRACE_TSYNC_LOCAL_H
+
+#include <stdbool.h>
+
+struct tracecmd_time_sync {
+	pthread_t			thread;
+	bool				thread_running;
+	unsigned long long		trace_id;
+	char				*proto_name;
+	int				loop_interval;
+	pthread_mutex_t			lock;
+	pthread_cond_t			cond;
+	pthread_barrier_t		first_sync;
+	char				*clock_str;
+	struct tracecmd_msg_handle	*msg_handle;
+	void				*context;
+	int				guest_pid;
+	int				vcpu_count;
+	int				remote_id;
+	int				local_id;
+};
+
+struct clock_sync_offsets {
+	/* Arrays with calculated time offsets at given time */
+	int				sync_size;	/* Allocated size of sync_ts,
+							 * sync_offsets, sync_scalings and sync_frac
+							 */
+	int				sync_count;	/* Number of elements in sync_ts,
+							 * sync_offsets, sync_scalings and sync_frac
+							 */
+	long long			*sync_ts;
+	long long			*sync_offsets;
+	long long			*sync_scalings;
+	long long			*sync_frac;
+};
+
+struct clock_sync_context {
+	void				*proto_data;	/* time sync protocol specific data */
+	bool				is_server;	/* server side time sync role */
+	bool				is_guest;	/* guest or host time sync role */
+	struct tracefs_instance		*instance;	/* ftrace buffer, used for time sync events */
+
+	int				cpu_count;
+	struct clock_sync_offsets	*offsets;	/* Array of size cpu_count
+							 * calculated offsets per CPU
+							 */
+
+	/* Identifiers of local and remote time sync peers */
+	unsigned int			local_id;
+	unsigned int			remote_id;
+};
+
+int tracecmd_tsync_proto_register(const char *proto_name, int accuracy, int roles,
+				  int supported_clocks, unsigned int flags,
+				  int (*init)(struct tracecmd_time_sync *),
+				  int (*free)(struct tracecmd_time_sync *),
+				  int (*calc)(struct tracecmd_time_sync *,
+					      long long *, long long *, long long*,
+					      long long *, unsigned int));
+int tracecmd_tsync_proto_unregister(char *proto_name);
+int ptp_clock_sync_register(void);
+
+#ifdef VSOCK
+int kvm_clock_sync_register(void);
+#else
+static inline int kvm_clock_sync_register(void)
+{
+	return 0;
+}
+#endif
+
+#endif /* _TRACE_TSYNC_LOCAL_H */