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// SPDX-License-Identifier: GPL-3.0-or-later
#include "plugin_proc.h"
struct mc {
char *name;
char ce_updated;
char ue_updated;
char *ce_count_filename;
char *ue_count_filename;
procfile *ce_ff;
procfile *ue_ff;
collected_number ce_count;
collected_number ue_count;
RRDDIM *ce_rd;
RRDDIM *ue_rd;
struct mc *next;
};
static struct mc *mc_root = 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");
char *dirname = config_get("plugin:proc:/sys/devices/system/edac/mc", "directory to monitor", name);
DIR *dir = opendir(dirname);
if(unlikely(!dir)) {
error("Cannot read ECC memory errors directory '%s'", 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", dirname, de->d_name);
if(stat(name, &st) != -1)
m->ce_count_filename = strdupz(name);
snprintfz(name, FILENAME_MAX, "%s/%s/ue_count", dirname, de->d_name);
if(stat(name, &st) != -1)
m->ue_count_filename = strdupz(name);
if(!m->ce_count_filename && !m->ue_count_filename) {
freez(m->name);
freez(m);
}
else {
m->next = mc_root;
mc_root = m;
}
}
}
closedir(dir);
}
int do_proc_sys_devices_system_edac_mc(int update_every, usec_t dt) {
(void)dt;
if(unlikely(mc_root == NULL)) {
find_all_mc();
if(unlikely(mc_root == NULL))
return 1;
}
static int do_ce = -1, do_ue = -1;
NETDATA_DOUBLE ce_sum = 0, ue_sum = 0;
struct mc *m;
if(unlikely(do_ce == -1)) {
do_ce = config_get_boolean_ondemand("plugin:proc:/sys/devices/system/edac/mc", "enable ECC memory correctable errors", CONFIG_BOOLEAN_YES);
do_ue = config_get_boolean_ondemand("plugin:proc:/sys/devices/system/edac/mc", "enable ECC memory uncorrectable errors", CONFIG_BOOLEAN_YES);
}
if(do_ce != CONFIG_BOOLEAN_NO) {
for(m = mc_root; m; m = m->next) {
if(m->ce_count_filename) {
m->ce_updated = 0;
if(unlikely(!m->ce_ff)) {
m->ce_ff = procfile_open(m->ce_count_filename, " \t", PROCFILE_FLAG_DEFAULT);
if(unlikely(!m->ce_ff))
continue;
}
m->ce_ff = procfile_readall(m->ce_ff);
if(unlikely(!m->ce_ff || procfile_lines(m->ce_ff) < 1 || procfile_linewords(m->ce_ff, 0) < 1))
continue;
m->ce_count = str2ull(procfile_lineword(m->ce_ff, 0, 0));
ce_sum += m->ce_count;
m->ce_updated = 1;
}
}
}
if(do_ue != CONFIG_BOOLEAN_NO) {
for(m = mc_root; m; m = m->next) {
if(m->ue_count_filename) {
m->ue_updated = 0;
if(unlikely(!m->ue_ff)) {
m->ue_ff = procfile_open(m->ue_count_filename, " \t", PROCFILE_FLAG_DEFAULT);
if(unlikely(!m->ue_ff))
continue;
}
m->ue_ff = procfile_readall(m->ue_ff);
if(unlikely(!m->ue_ff || procfile_lines(m->ue_ff) < 1 || procfile_linewords(m->ue_ff, 0) < 1))
continue;
m->ue_count = str2ull(procfile_lineword(m->ue_ff, 0, 0));
ue_sum += m->ue_count;
m->ue_updated = 1;
}
}
}
// --------------------------------------------------------------------
if(do_ce == CONFIG_BOOLEAN_YES || (do_ce == CONFIG_BOOLEAN_AUTO &&
(ce_sum > 0 || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
do_ce = CONFIG_BOOLEAN_YES;
static RRDSET *ce_st = NULL;
if(unlikely(!ce_st)) {
ce_st = rrdset_create_localhost(
"mem"
, "ecc_ce"
, NULL
, "ecc"
, NULL
, "ECC Memory Correctable Errors"
, "errors"
, PLUGIN_PROC_NAME
, "/sys/devices/system/edac/mc"
, NETDATA_CHART_PRIO_MEM_HW_ECC_CE
, update_every
, RRDSET_TYPE_LINE
);
}
for(m = mc_root; m; m = m->next) {
if (m->ce_count_filename && m->ce_updated) {
if(unlikely(!m->ce_rd))
m->ce_rd = rrddim_add(ce_st, m->name, NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(ce_st, m->ce_rd, m->ce_count);
}
}
rrdset_done(ce_st);
}
// --------------------------------------------------------------------
if(do_ue == CONFIG_BOOLEAN_YES || (do_ue == CONFIG_BOOLEAN_AUTO &&
(ue_sum > 0 || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) {
do_ue = CONFIG_BOOLEAN_YES;
static RRDSET *ue_st = NULL;
if(unlikely(!ue_st)) {
ue_st = rrdset_create_localhost(
"mem"
, "ecc_ue"
, NULL
, "ecc"
, NULL
, "ECC Memory Uncorrectable Errors"
, "errors"
, PLUGIN_PROC_NAME
, "/sys/devices/system/edac/mc"
, NETDATA_CHART_PRIO_MEM_HW_ECC_UE
, update_every
, RRDSET_TYPE_LINE
);
}
for(m = mc_root; m; m = m->next) {
if (m->ue_count_filename && m->ue_updated) {
if(unlikely(!m->ue_rd))
m->ue_rd = rrddim_add(ue_st, m->name, NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rrddim_set_by_pointer(ue_st, m->ue_rd, m->ue_count);
}
}
rrdset_done(ue_st);
}
return 0;
}
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