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
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
|
// SPDX-License-Identifier: GPL-3.0-or-later
#include "plugin_proc.h"
struct edac_count {
bool updated;
char *filename;
procfile *ff;
kernel_uint_t count;
RRDDIM *rd;
};
struct edac_dimm {
char *name;
struct edac_count ce;
struct edac_count ue;
RRDSET *st;
struct edac_dimm *prev, *next;
};
struct mc {
char *name;
struct edac_count ce;
struct edac_count ue;
struct edac_count ce_noinfo;
struct edac_count ue_noinfo;
RRDSET *st;
struct edac_dimm *dimms;
struct mc *prev, *next;
};
static struct mc *mc_root = NULL;
static char *mc_dirname = NULL;
static void find_all_mc() {
char name[FILENAME_MAX + 1];
snprintfz(name, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/edac/mc");
mc_dirname = config_get("plugin:proc:/sys/devices/system/edac/mc", "directory to monitor", name);
DIR *dir = opendir(mc_dirname);
if(unlikely(!dir)) {
collector_error("Cannot read EDAC memory errors directory '%s'", mc_dirname);
return;
}
struct dirent *de = NULL;
while((de = readdir(dir))) {
if(de->d_type == DT_DIR && de->d_name[0] == 'm' && de->d_name[1] == 'c' && isdigit(de->d_name[2])) {
struct mc *m = callocz(1, sizeof(struct mc));
m->name = strdupz(de->d_name);
struct stat st;
snprintfz(name, FILENAME_MAX, "%s/%s/ce_count", mc_dirname, de->d_name);
if(stat(name, &st) != -1)
m->ce.filename = strdupz(name);
snprintfz(name, FILENAME_MAX, "%s/%s/ue_count", mc_dirname, de->d_name);
if(stat(name, &st) != -1)
m->ue.filename = strdupz(name);
snprintfz(name, FILENAME_MAX, "%s/%s/ce_noinfo_count", mc_dirname, de->d_name);
if(stat(name, &st) != -1)
m->ce_noinfo.filename = strdupz(name);
snprintfz(name, FILENAME_MAX, "%s/%s/ue_noinfo_count", mc_dirname, de->d_name);
if(stat(name, &st) != -1)
m->ue_noinfo.filename = strdupz(name);
if(!m->ce.filename && !m->ue.filename && !m->ce_noinfo.filename && !m->ue_noinfo.filename) {
freez(m->name);
freez(m);
}
else
DOUBLE_LINKED_LIST_APPEND_ITEM_UNSAFE(mc_root, m, prev, next);
}
}
closedir(dir);
for(struct mc *m = mc_root; m ;m = m->next) {
snprintfz(name, FILENAME_MAX, "%s/%s", mc_dirname, m->name);
dir = opendir(name);
if(!dir) {
collector_error("Cannot read EDAC memory errors directory '%s'", name);
continue;
}
while((de = readdir(dir))) {
// it can be dimmX or rankX directory
// https://www.kernel.org/doc/html/v5.0/admin-guide/ras.html#f5
if (de->d_type == DT_DIR &&
((strncmp(de->d_name, "rank", 4) == 0 || strncmp(de->d_name, "dimm", 4) == 0)) &&
isdigit(de->d_name[4])) {
struct edac_dimm *d = callocz(1, sizeof(struct edac_dimm));
d->name = strdupz(de->d_name);
struct stat st;
snprintfz(name, FILENAME_MAX, "%s/%s/%s/dimm_ce_count", mc_dirname, m->name, de->d_name);
if(stat(name, &st) != -1)
d->ce.filename = strdupz(name);
snprintfz(name, FILENAME_MAX, "%s/%s/%s/dimm_ue_count", mc_dirname, m->name, de->d_name);
if(stat(name, &st) != -1)
d->ue.filename = strdupz(name);
if(!d->ce.filename && !d->ue.filename) {
freez(d->name);
freez(d);
}
else
DOUBLE_LINKED_LIST_APPEND_ITEM_UNSAFE(m->dimms, d, prev, next);
}
}
closedir(dir);
}
}
static kernel_uint_t read_edac_count(struct edac_count *t) {
t->updated = false;
t->count = 0;
if(t->filename) {
if(unlikely(!t->ff)) {
t->ff = procfile_open(t->filename, " \t", PROCFILE_FLAG_DEFAULT);
if(unlikely(!t->ff))
return 0;
}
t->ff = procfile_readall(t->ff);
if(unlikely(!t->ff || procfile_lines(t->ff) < 1 || procfile_linewords(t->ff, 0) < 1))
return 0;
t->count = str2ull(procfile_lineword(t->ff, 0, 0), NULL);
t->updated = true;
}
return t->count;
}
static bool read_edac_mc_file(const char *mc, const char *filename, char *out, size_t out_size) {
char f[FILENAME_MAX + 1];
snprintfz(f, FILENAME_MAX, "%s/%s/%s", mc_dirname, mc, filename);
if(read_file(f, out, out_size) != 0) {
collector_error("EDAC: cannot read file '%s'", f);
return false;
}
return true;
}
static bool read_edac_mc_rank_file(const char *mc, const char *rank, const char *filename, char *out, size_t out_size) {
char f[FILENAME_MAX + 1];
snprintfz(f, FILENAME_MAX, "%s/%s/%s/%s", mc_dirname, mc, rank, filename);
if(read_file(f, out, out_size) != 0) {
collector_error("EDAC: cannot read file '%s'", f);
return false;
}
return true;
}
int do_proc_sys_devices_system_edac_mc(int update_every, usec_t dt __maybe_unused) {
if(unlikely(!mc_root)) {
find_all_mc();
if(!mc_root)
// don't call this again
return 1;
}
for(struct mc *m = mc_root; m; m = m->next) {
read_edac_count(&m->ce);
read_edac_count(&m->ce_noinfo);
read_edac_count(&m->ue);
read_edac_count(&m->ue_noinfo);
for(struct edac_dimm *d = m->dimms; d ;d = d->next) {
read_edac_count(&d->ce);
read_edac_count(&d->ue);
}
}
// --------------------------------------------------------------------
for(struct mc *m = mc_root; m ; m = m->next) {
if(unlikely(!m->ce.updated && !m->ue.updated && !m->ce_noinfo.updated && !m->ue_noinfo.updated))
continue;
if(unlikely(!m->st)) {
char id[RRD_ID_LENGTH_MAX + 1];
snprintfz(id, RRD_ID_LENGTH_MAX, "edac_%s", m->name);
m->st = rrdset_create_localhost(
"mem"
, id
, NULL
, "edac"
, "mem.edac_mc"
, "Memory Controller (MC) Error Detection And Correction (EDAC) Errors"
, "errors/s"
, PLUGIN_PROC_NAME
, "/sys/devices/system/edac/mc"
, NETDATA_CHART_PRIO_MEM_HW_ECC_CE
, update_every
, RRDSET_TYPE_LINE
);
rrdlabels_add(m->st->rrdlabels, "controller", m->name, RRDLABEL_SRC_AUTO);
char buffer[1024 + 1];
if(read_edac_mc_file(m->name, "mc_name", buffer, 1024))
rrdlabels_add(m->st->rrdlabels, "mc_name", buffer, RRDLABEL_SRC_AUTO);
if(read_edac_mc_file(m->name, "size_mb", buffer, 1024))
rrdlabels_add(m->st->rrdlabels, "size_mb", buffer, RRDLABEL_SRC_AUTO);
if(read_edac_mc_file(m->name, "max_location", buffer, 1024))
rrdlabels_add(m->st->rrdlabels, "max_location", buffer, RRDLABEL_SRC_AUTO);
m->ce.rd = rrddim_add(m->st, "correctable", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
m->ue.rd = rrddim_add(m->st, "uncorrectable", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
m->ce_noinfo.rd = rrddim_add(m->st, "correctable_noinfo", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
m->ue_noinfo.rd = rrddim_add(m->st, "uncorrectable_noinfo", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
}
rrddim_set_by_pointer(m->st, m->ce.rd, (collected_number)m->ce.count);
rrddim_set_by_pointer(m->st, m->ue.rd, (collected_number)m->ue.count);
rrddim_set_by_pointer(m->st, m->ce_noinfo.rd, (collected_number)m->ce_noinfo.count);
rrddim_set_by_pointer(m->st, m->ue_noinfo.rd, (collected_number)m->ue_noinfo.count);
rrdset_done(m->st);
for(struct edac_dimm *d = m->dimms; d ;d = d->next) {
if(unlikely(!d->ce.updated && !d->ue.updated))
continue;
if(unlikely(!d->st)) {
char id[RRD_ID_LENGTH_MAX + 1];
snprintfz(id, RRD_ID_LENGTH_MAX, "edac_%s_%s", m->name, d->name);
d->st = rrdset_create_localhost(
"mem"
, id
, NULL
, "edac"
, "mem.edac_mc_dimm"
, "DIMM Error Detection And Correction (EDAC) Errors"
, "errors/s"
, PLUGIN_PROC_NAME
, "/sys/devices/system/edac/mc"
, NETDATA_CHART_PRIO_MEM_HW_ECC_CE + 1
, update_every
, RRDSET_TYPE_LINE
);
rrdlabels_add(d->st->rrdlabels, "controller", m->name, RRDLABEL_SRC_AUTO);
rrdlabels_add(d->st->rrdlabels, "dimm", d->name, RRDLABEL_SRC_AUTO);
char buffer[1024 + 1];
if (read_edac_mc_rank_file(m->name, d->name, "dimm_dev_type", buffer, 1024))
rrdlabels_add(d->st->rrdlabels, "dimm_dev_type", buffer, RRDLABEL_SRC_AUTO);
if (read_edac_mc_rank_file(m->name, d->name, "dimm_edac_mode", buffer, 1024))
rrdlabels_add(d->st->rrdlabels, "dimm_edac_mode", buffer, RRDLABEL_SRC_AUTO);
if (read_edac_mc_rank_file(m->name, d->name, "dimm_label", buffer, 1024))
rrdlabels_add(d->st->rrdlabels, "dimm_label", buffer, RRDLABEL_SRC_AUTO);
if (read_edac_mc_rank_file(m->name, d->name, "dimm_location", buffer, 1024))
rrdlabels_add(d->st->rrdlabels, "dimm_location", buffer, RRDLABEL_SRC_AUTO);
if (read_edac_mc_rank_file(m->name, d->name, "dimm_mem_type", buffer, 1024))
rrdlabels_add(d->st->rrdlabels, "dimm_mem_type", buffer, RRDLABEL_SRC_AUTO);
if (read_edac_mc_rank_file(m->name, d->name, "size", buffer, 1024))
rrdlabels_add(d->st->rrdlabels, "size", buffer, RRDLABEL_SRC_AUTO);
d->ce.rd = rrddim_add(d->st, "correctable", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
d->ue.rd = rrddim_add(d->st, "uncorrectable", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
}
rrddim_set_by_pointer(d->st, d->ce.rd, (collected_number)d->ce.count);
rrddim_set_by_pointer(d->st, d->ue.rd, (collected_number)d->ue.count);
rrdset_done(d->st);
}
}
return 0;
}
|
