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-rw-r--r--src/plugins/perfmon/perfmon.h172
1 files changed, 172 insertions, 0 deletions
diff --git a/src/plugins/perfmon/perfmon.h b/src/plugins/perfmon/perfmon.h
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+++ b/src/plugins/perfmon/perfmon.h
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+/*
+ * Copyright (c) 2020 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __perfmon_perfmon_h
+#define __perfmon_perfmon_h
+
+#include <linux/perf_event.h>
+#include <vppinfra/clib.h>
+#include <vppinfra/format.h>
+#include <vppinfra/error.h>
+#include <vlib/vlib.h>
+
+#define PERF_MAX_EVENTS 7 /* 3 fixed and 4 programmable */
+
+typedef enum
+{
+ PERFMON_BUNDLE_TYPE_UNKNOWN,
+ PERFMON_BUNDLE_TYPE_NODE,
+ PERFMON_BUNDLE_TYPE_THREAD,
+ PERFMON_BUNDLE_TYPE_SYSTEM,
+} perfmon_bundle_type_t;
+
+typedef struct
+{
+ u32 type_from_instance : 1;
+ u32 exclude_kernel : 1;
+ union
+ {
+ u32 type;
+ u32 instance_type;
+ };
+ u64 config;
+ char *name;
+ char *description;
+} perfmon_event_t;
+
+typedef struct
+{
+ u32 type;
+ int cpu;
+ pid_t pid;
+ char *name;
+} perfmon_instance_t;
+
+typedef struct
+{
+ char *name;
+ perfmon_instance_t *instances;
+} perfmon_instance_type_t;
+
+struct perfmon_source;
+vlib_node_function_t perfmon_dispatch_wrapper;
+
+typedef clib_error_t *(perfmon_source_init_fn_t) (vlib_main_t *vm,
+ struct perfmon_source *);
+typedef struct perfmon_source
+{
+ char *name;
+ char *description;
+ struct perfmon_source *next;
+ perfmon_event_t *events;
+ u32 n_events;
+ perfmon_instance_type_t *instances_by_type;
+ format_function_t *format_config;
+ perfmon_source_init_fn_t *init_fn;
+} perfmon_source_t;
+
+struct perfmon_bundle;
+typedef clib_error_t *(perfmon_bundle_init_fn_t) (vlib_main_t *vm,
+ struct perfmon_bundle *);
+typedef struct perfmon_bundle
+{
+ char *name;
+ char *description;
+ char *source;
+ char *footer;
+ perfmon_bundle_type_t type;
+ u32 events[PERF_MAX_EVENTS];
+ u32 n_events;
+
+ perfmon_bundle_init_fn_t *init_fn;
+
+ char **column_headers;
+ format_function_t *format_fn;
+
+ /* do not set manually */
+ perfmon_source_t *src;
+ struct perfmon_bundle *next;
+} perfmon_bundle_t;
+
+typedef struct
+{
+ u64 nr;
+ u64 time_enabled;
+ u64 time_running;
+ u64 value[PERF_MAX_EVENTS];
+} perfmon_reading_t;
+
+typedef struct
+{
+ CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+ u64 n_calls;
+ u64 n_packets;
+ u64 value[PERF_MAX_EVENTS];
+} perfmon_node_stats_t;
+
+typedef struct
+{
+ u8 n_events;
+ u16 n_nodes;
+ perfmon_node_stats_t *node_stats;
+ struct perf_event_mmap_page *mmap_pages[PERF_MAX_EVENTS];
+} perfmon_thread_runtime_t;
+
+typedef struct
+{
+ perfmon_thread_runtime_t *thread_runtimes;
+ perfmon_bundle_t *bundles;
+ uword *bundle_by_name;
+ perfmon_source_t *sources;
+ uword *source_by_name;
+ perfmon_bundle_t *active_bundle;
+ int is_running;
+ int *group_fds;
+ int *fds_to_close;
+ perfmon_instance_type_t *default_instance_type;
+ perfmon_instance_type_t *active_instance_type;
+} perfmon_main_t;
+
+extern perfmon_main_t perfmon_main;
+
+#define PERFMON_REGISTER_SOURCE(x) \
+ perfmon_source_t __perfmon_source_##x; \
+ static void __clib_constructor __perfmon_source_registration_##x (void) \
+ { \
+ perfmon_main_t *pm = &perfmon_main; \
+ __perfmon_source_##x.next = pm->sources; \
+ pm->sources = &__perfmon_source_##x; \
+ } \
+ perfmon_source_t __perfmon_source_##x
+
+#define PERFMON_REGISTER_BUNDLE(x) \
+ perfmon_bundle_t __perfmon_bundle_##x; \
+ static void __clib_constructor __perfmon_bundle_registration_##x (void) \
+ { \
+ perfmon_main_t *pm = &perfmon_main; \
+ __perfmon_bundle_##x.next = pm->bundles; \
+ pm->bundles = &__perfmon_bundle_##x; \
+ } \
+ perfmon_bundle_t __perfmon_bundle_##x
+
+void perfmon_reset (vlib_main_t *vm);
+clib_error_t *perfmon_set (vlib_main_t *vm, perfmon_bundle_t *);
+clib_error_t *perfmon_start (vlib_main_t *vm);
+clib_error_t *perfmon_stop (vlib_main_t *vm);
+
+#define PERFMON_STRINGS(...) \
+ (char *[]) { __VA_ARGS__, 0 }
+
+#endif