2 *------------------------------------------------------------------
5 * Copyright (c) 2013 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
21 #include <vlib/vlib.h>
23 #include <vlib/unix/cj.h>
28 cj_log (u32 type, void * data0, void * data1)
31 cj_main_t * cjm = &cj_main;
37 new_tail = __sync_add_and_fetch (&cjm->tail, 1);
39 r = (cj_record_t *) &(cjm->records[new_tail & (cjm->num_records - 1)]);
40 r->time = vlib_time_now (cjm->vlib_main);
41 r->cpu = os_get_cpu_number();
43 r->data[0] = pointer_to_uword(data0);
44 r->data[1] = pointer_to_uword(data1);
49 cj_main_t * cjm = &cj_main;
55 clib_error_t * cj_init (vlib_main_t * vm)
57 cj_main_t * cjm = &cj_main;
62 VLIB_INIT_FUNCTION (cj_init);
65 cj_config (vlib_main_t * vm, unformat_input_t * input)
67 cj_main_t * cjm = &cj_main;
71 while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
73 if (unformat (input, "records %d", &cjm->num_records))
75 else if (unformat (input, "on"))
78 return clib_error_return (0, "cj_config: unknown input '%U'",
79 format_unformat_error, input);
85 cjm->num_records = max_pow2 (cjm->num_records);
86 vec_validate (cjm->records, cjm->num_records-1);
87 memset (cjm->records, 0xff, cjm->num_records * sizeof (cj_record_t));
94 VLIB_CONFIG_FUNCTION (cj_config, "cj");
96 void cj_enable_disable (int is_enable)
98 cj_main_t * cjm = &cj_main;
100 if (cjm->num_records)
101 cjm->enable = is_enable;
103 vlib_cli_output (cjm->vlib_main, "CJ not configured...");
106 static inline void cj_dump_one_record (cj_record_t * r)
108 fprintf (stderr, "[%d]: %10.6f T%02d %llx %llx\n",
109 r->cpu, r->time, r->type, (long long unsigned int) r->data[0],
110 (long long unsigned int) r->data[1]);
113 static void cj_dump_internal (u8 filter0_enable, u64 filter0,
114 u8 filter1_enable, u64 filter1)
116 cj_main_t * cjm = &cj_main;
120 if (cjm->num_records == 0)
122 fprintf (stderr, "CJ not configured...\n");
126 if (cjm->tail == (u64)~0)
128 fprintf (stderr, "No data collected...\n");
132 /* Has the trace wrapped? */
133 index = (cjm->tail+1) & (cjm->num_records - 1);
134 r = &(cjm->records[index]);
136 if (r->cpu != (u32)~0)
138 /* Yes, dump from tail + 1 to the end */
139 for (i = index; i < cjm->num_records; i++)
141 if (filter0_enable && (r->data[0] != filter0))
143 if (filter1_enable && (r->data[1] != filter1))
145 cj_dump_one_record (r);
150 /* dump from the beginning through the final tail */
152 for (i = 0; i <= cjm->tail; i++)
154 if (filter0_enable && (r->data[0] != filter0))
156 if (filter1_enable && (r->data[1] != filter1))
158 cj_dump_one_record (r);
166 cj_dump_internal (0, 0, 0, 0);
169 void cj_dump_filter_data0 (u64 filter0)
171 cj_dump_internal (1/* enable f0 */, filter0, 0, 0);
174 void cj_dump_filter_data1 (u64 filter1)
176 cj_dump_internal (0, 0, 1 /* enable f1 */, filter1);
179 void cj_dump_filter_data12 (u64 filter0, u64 filter1)
181 cj_dump_internal (1, filter0, 1, filter1);
184 static clib_error_t *
185 cj_command_fn (vlib_main_t * vm,
186 unformat_input_t * input,
187 vlib_cli_command_t * cmd)
192 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) {
193 if (unformat (input, "enable") || unformat (input, "on"))
195 else if (unformat (input, "disable") || unformat (input, "off"))
197 else if (unformat (input, "dump"))
200 return clib_error_return (0, "unknown input `%U'",
201 format_unformat_error, input);
205 cj_enable_disable (is_enable);
213 VLIB_CLI_COMMAND (cj_command,static) = {
216 .function = cj_command_fn,