1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) 2015-2018 Linaro Limited
* Copyright (c) 2021-2022 Nokia
*/
#include <odp/api/packet_io_stats.h>
#include <odp_debug_internal.h>
#include <odp_sysfs_stats.h>
#include <dirent.h>
#include <errno.h>
#include <string.h>
#include <inttypes.h>
#include <linux/limits.h>
#define SYSFS_DIR "/sys/class/net/%s/statistics"
static int sysfs_get_val(const char *fname, uint64_t *val)
{
FILE *file;
char str[128];
int ret = -1;
file = fopen(fname, "rt");
if (file == NULL) {
/* do not print debug err if sysfs is not supported by
* kernel driver.
*/
if (errno != ENOENT)
_ODP_ERR("fopen %s: %s\n", fname, strerror(errno));
return 0;
}
if (fgets(str, sizeof(str), file) != NULL)
ret = sscanf(str, "%" SCNx64, val);
(void)fclose(file);
if (ret != 1) {
_ODP_ERR("read %s\n", fname);
return -1;
}
return 0;
}
int _odp_sysfs_stats(pktio_entry_t *pktio_entry,
odp_pktio_stats_t *stats)
{
char fname[256];
const char *dev = pktio_entry->name;
int ret = 0;
sprintf(fname, "/sys/class/net/%s/statistics/rx_bytes", dev);
ret -= sysfs_get_val(fname, &stats->in_octets);
sprintf(fname, "/sys/class/net/%s/statistics/rx_packets", dev);
ret -= sysfs_get_val(fname, &stats->in_packets);
sprintf(fname, "/sys/class/net/%s/statistics/rx_packets", dev);
ret -= sysfs_get_val(fname, &stats->in_ucast_pkts);
sprintf(fname, "/sys/class/net/%s/statistics/multicast", dev);
ret -= sysfs_get_val(fname, &stats->in_mcast_pkts);
sprintf(fname, "/sys/class/net/%s/statistics/rx_dropped", dev);
ret -= sysfs_get_val(fname, &stats->in_discards);
sprintf(fname, "/sys/class/net/%s/statistics/rx_errors", dev);
ret -= sysfs_get_val(fname, &stats->in_errors);
sprintf(fname, "/sys/class/net/%s/statistics/tx_bytes", dev);
ret -= sysfs_get_val(fname, &stats->out_octets);
sprintf(fname, "/sys/class/net/%s/statistics/tx_packets", dev);
ret -= sysfs_get_val(fname, &stats->out_packets);
sprintf(fname, "/sys/class/net/%s/statistics/tx_packets", dev);
ret -= sysfs_get_val(fname, &stats->out_ucast_pkts);
sprintf(fname, "/sys/class/net/%s/statistics/tx_dropped", dev);
ret -= sysfs_get_val(fname, &stats->out_discards);
sprintf(fname, "/sys/class/net/%s/statistics/tx_errors", dev);
ret -= sysfs_get_val(fname, &stats->out_errors);
return ret;
}
int _odp_sysfs_extra_stat_info(pktio_entry_t *pktio_entry,
odp_pktio_extra_stat_info_t info[], int num)
{
struct dirent *e;
DIR *dir;
char sysfs_dir[PATH_MAX];
int counters = 0;
snprintf(sysfs_dir, PATH_MAX, SYSFS_DIR, pktio_entry->name);
dir = opendir(sysfs_dir);
if (!dir) {
_ODP_ERR("Failed to open sysfs dir: %s\n", sysfs_dir);
return -1;
}
while ((e = readdir(dir)) != NULL) {
/* Skip . and .. */
if (strncmp(e->d_name, ".", 1) == 0)
continue;
if (info && counters < num)
snprintf(info[counters].name,
ODP_PKTIO_STATS_EXTRA_NAME_LEN, "%s",
e->d_name);
counters++;
}
(void)closedir(dir);
return counters;
}
int _odp_sysfs_extra_stats(pktio_entry_t *pktio_entry, uint64_t stats[],
int num)
{
struct dirent *e;
DIR *dir;
char sysfs_dir[PATH_MAX];
char file_path[PATH_MAX];
int counters = 0;
snprintf(sysfs_dir, PATH_MAX, SYSFS_DIR, pktio_entry->name);
dir = opendir(sysfs_dir);
if (!dir) {
_ODP_ERR("Failed to open dir: %s\n", sysfs_dir);
return -1;
}
while ((e = readdir(dir)) != NULL) {
uint64_t val;
/* Skip . and .. */
if (strncmp(e->d_name, ".", 1) == 0)
continue;
snprintf(file_path, PATH_MAX, "%s/%s", sysfs_dir, e->d_name);
if (sysfs_get_val(file_path, &val)) {
_ODP_ERR("Failed to read file: %s/n", file_path);
counters = -1;
break;
}
if (stats && counters < num)
stats[counters] = val;
counters++;
}
(void)closedir(dir);
return counters;
}
int _odp_sysfs_extra_stat_counter(pktio_entry_t *pktio_entry, uint32_t id,
uint64_t *stat)
{
struct dirent *e;
DIR *dir;
char sysfs_dir[PATH_MAX];
char file_path[PATH_MAX];
uint32_t counters = 0;
int ret = -1;
snprintf(sysfs_dir, PATH_MAX, SYSFS_DIR, pktio_entry->name);
dir = opendir(sysfs_dir);
if (!dir) {
_ODP_ERR("Failed to open dir: %s\n", sysfs_dir);
return -1;
}
while ((e = readdir(dir)) != NULL) {
/* Skip . and .. */
if (strncmp(e->d_name, ".", 1) == 0)
continue;
if (counters == id) {
uint64_t val;
snprintf(file_path, PATH_MAX, "%s/%s",
sysfs_dir, e->d_name);
if (sysfs_get_val(file_path, &val)) {
_ODP_ERR("Failed to read file: %s/n", file_path);
} else {
*stat = val;
ret = 0;
}
break;
}
counters++;
}
(void)closedir(dir);
return ret;
}
|
