diff options
Diffstat (limited to 'src/collectors/proc.plugin/sys_devices_system_edac_mc.c')
-rw-r--r-- | src/collectors/proc.plugin/sys_devices_system_edac_mc.c | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/src/collectors/proc.plugin/sys_devices_system_edac_mc.c b/src/collectors/proc.plugin/sys_devices_system_edac_mc.c new file mode 100644 index 000000000..d3db8c044 --- /dev/null +++ b/src/collectors/proc.plugin/sys_devices_system_edac_mc.c @@ -0,0 +1,298 @@ +// 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_txt_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_txt_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_errors" + , "Memory Controller (MC) Error Detection And Correction (EDAC) Errors" + , "errors" + , 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_ABSOLUTE); + m->ue.rd = rrddim_add(m->st, "uncorrectable", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + m->ce_noinfo.rd = rrddim_add(m->st, "correctable_noinfo", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + m->ue_noinfo.rd = rrddim_add(m->st, "uncorrectable_noinfo", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + } + + 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_errors" + , "DIMM Error Detection And Correction (EDAC) Errors" + , "errors" + , 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_ABSOLUTE); + d->ue.rd = rrddim_add(d->st, "uncorrectable", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + } + + 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; +} |