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Message-Id: <1378032529-18498-15-git-send-email-jolsa@redhat.com>
Date: Sun, 1 Sep 2013 12:48:39 +0200
From: Jiri Olsa <jolsa@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Jiri Olsa <jolsa@...hat.com>,
Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Ingo Molnar <mingo@...e.hu>,
Namhyung Kim <namhyung@...nel.org>,
Paul Mackerras <paulus@...ba.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Steven Rostedt <rostedt@...dmis.org>,
David Ahern <dsahern@...il.com>
Subject: [PATCH 14/24] tools list traceevent: Add mac80211 plugin
Backporting mac80211 plugin.
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: David Ahern <dsahern@...il.com>
---
tools/lib/traceevent/Makefile | 3 +-
tools/lib/traceevent/plugin_mac80211.c | 204 +++++++++++++++++++++++++++++++++
2 files changed, 206 insertions(+), 1 deletion(-)
create mode 100644 tools/lib/traceevent/plugin_mac80211.c
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 3ac01c6..690e107 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -208,7 +208,8 @@ $(obj)/%.o: $(src)/%.c
PEVENT_LIB_OBJS = event-parse.o event-plugin.o trace-seq.o parse-filter.o parse-utils.o event-option.o
PEVENT_LIB_OBJS += kbuffer-parse.o
-PLUGIN_OBJS = plugin_jbd2.o plugin_blk.o plugin_hrtimer.o plugin_kmem.o plugin_kvm.o
+PLUGIN_OBJS = plugin_jbd2.o plugin_blk.o plugin_hrtimer.o plugin_kmem.o plugin_kvm.o \
+ plugin_mac80211.o
PLUGINS := $(PLUGIN_OBJS:.o=.so)
diff --git a/tools/lib/traceevent/plugin_mac80211.c b/tools/lib/traceevent/plugin_mac80211.c
new file mode 100644
index 0000000..070c7c9
--- /dev/null
+++ b/tools/lib/traceevent/plugin_mac80211.c
@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2009 Johannes Berg <johannes@...solutions.net>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License (not later!)
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <http://www.gnu.org/licenses>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "event-parse.h"
+
+#define INDENT 65
+
+static void print_string(struct trace_seq *s, struct event_format *event,
+ const char *name, const void *data)
+{
+ struct format_field *f = pevent_find_field(event, name);
+ int offset;
+ int length;
+
+ if (!f) {
+ trace_seq_printf(s, "NOTFOUND:%s", name);
+ return;
+ }
+
+ offset = f->offset;
+ length = f->size;
+
+ if (!strncmp(f->type, "__data_loc", 10)) {
+ unsigned long long v;
+ if (pevent_read_number_field(f, data, &v)) {
+ trace_seq_printf(s, "invalid_data_loc");
+ return;
+ }
+ offset = v & 0xffff;
+ length = v >> 16;
+ }
+
+ trace_seq_printf(s, "%.*s", length, (char *)data + offset);
+}
+
+struct value_name {
+ unsigned long long value;
+ const char *name;
+};
+
+static void _print_enum(struct trace_seq *s, struct event_format *event,
+ const char *name, const void *data,
+ const struct value_name *names, int n_names)
+{
+ struct format_field *f = pevent_find_field(event, name);
+ unsigned long long val;
+ int i;
+
+ if (!f) {
+ trace_seq_puts(s, "field-not-found");
+ return;
+ }
+
+ if (pevent_read_number_field(f, data, &val)) {
+ trace_seq_puts(s, "field-invalid");
+ return;
+ }
+
+ for (i = 0; i < n_names; i++) {
+ if (names[i].value == val) {
+ trace_seq_puts(s, names[i].name);
+ return;
+ }
+ }
+
+ trace_seq_printf(s, "%llu", val);
+}
+
+#define print_enum(s, ev, name, data, enums...) \
+ ({ static const struct value_name __n[] = { enums }; \
+ _print_enum(s, ev, name, data, __n, sizeof(__n)/sizeof(__n[0]));\
+ })
+
+static void _print_flag(struct trace_seq *s, struct event_format *event,
+ const char *name, const void *data,
+ const struct value_name *names, int n_names)
+{
+ struct format_field *f = pevent_find_field(event, name);
+ unsigned long long val;
+ int i, j, found, first = 1;
+
+ if (!f) {
+ trace_seq_puts(s, "field-not-found");
+ return;
+ }
+
+ if (pevent_read_number_field(f, data, &val)) {
+ trace_seq_puts(s, "field-invalid");
+ return;
+ }
+
+ for (i = 0; i < 64; i++) {
+ if (!(val & (1ULL<<i)))
+ continue;
+ if (!first)
+ trace_seq_putc(s, '|');
+ first = 0;
+
+ found = 0;
+ for (j = 0; j < n_names; j++) {
+ if (i == names[j].value) {
+ trace_seq_puts(s, names[j].name);
+ found = 1;
+ break;
+ }
+ }
+ if (!found)
+ trace_seq_printf(s, "flag_%d", i);
+ }
+}
+
+#define print_flag(s, ev, name, data, enums...) \
+ ({ static const struct value_name __n[] = { enums }; \
+ _print_flag(s, ev, name, data, __n, sizeof(__n)/sizeof(__n[0])); \
+ })
+
+#define SF(fn) pevent_print_num_field(s, fn ":%d", event, fn, record, 0)
+#define SFX(fn) pevent_print_num_field(s, fn ":%#x", event, fn, record, 0)
+#define SP() trace_seq_putc(s, ' ')
+
+static int drv_bss_info_changed(struct trace_seq *s,
+ struct pevent_record *record,
+ struct event_format *event, void *context)
+{
+ void *data = record->data;
+
+ print_string(s, event, "wiphy_name", data);
+ trace_seq_printf(s, " vif:");
+ print_string(s, event, "vif_name", data);
+ pevent_print_num_field(s, "(%d)", event, "vif_type", record, 1);
+
+ trace_seq_printf(s, "\n%*s", INDENT, "");
+ SF("assoc"); SP();
+ SF("aid"); SP();
+ SF("cts"); SP();
+ SF("shortpre"); SP();
+ SF("shortslot"); SP();
+ SF("dtimper"); SP();
+ trace_seq_printf(s, "\n%*s", INDENT, "");
+ SF("bcnint"); SP();
+ SFX("assoc_cap"); SP();
+ SFX("basic_rates"); SP();
+ SF("enable_beacon");
+ trace_seq_printf(s, "\n%*s", INDENT, "");
+ SF("ht_operation_mode");
+
+ return 0;
+}
+
+static int drv_config(struct trace_seq *s, struct pevent_record *record,
+ struct event_format *event, void *context)
+{
+ void *data = record->data;
+
+ print_string(s, event, "wiphy_name", data);
+ trace_seq_putc(s, ' ');
+ print_flag(s, event, "flags", data,
+ { 0, "MONITOR" },
+ { 1, "PS" },
+ { 2, "IDLE" },
+ { 3, "QOS"},
+ );
+ pevent_print_num_field(s, " chan:%d/", event, "center_freq", record, 1);
+ print_enum(s, event, "channel_type", data,
+ { 0, "noht" },
+ { 1, "ht20" },
+ { 2, "ht40-" },
+ { 3, "ht40+" });
+ trace_seq_putc(s, ' ');
+ SF("power_level");
+
+ return 0;
+}
+
+int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+{
+ pevent_register_event_handler(pevent, -1, "mac80211",
+ "drv_bss_info_changed",
+ drv_bss_info_changed, NULL);
+ pevent_register_event_handler(pevent, -1, "mac80211", "drv_config",
+ drv_config, NULL);
+
+ return 0;
+}
--
1.7.11.7
--
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