X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fintel_rdt.c;h=fc2a5f1791e49775370b792fbfb3bdac9f16461c;hb=06e3485ad08e85188fd3431bed8bcb810c9b2fea;hp=7328836694dee755dbdeaa38c51413286dfa6c52;hpb=5cf242b078f236b003f609c6419b13b099e0d2a5;p=collectd.git

diff --git a/src/intel_rdt.c b/src/intel_rdt.c
index 73288366..fc2a5f17 100644
--- a/src/intel_rdt.c
+++ b/src/intel_rdt.c
@@ -252,14 +252,13 @@ static int cgroup_set(rdt_core_group_t *cg, char *desc, uint64_t *cores,
  *   `item'        Config option containing core groups.
  *   `groups'      Table of core groups to set values in.
  *   `max_groups'  Maximum number of core groups allowed.
- *   `max_core'    Maximum allowed core value.
  *
  * RETURN VALUE
  *   On success, the number of core groups set up. On error, appropriate
  *   negative error value.
  */
 static int oconfig_to_cgroups(oconfig_item_t *item, rdt_core_group_t *groups,
-                              size_t max_groups, uint64_t max_core) {
+                              size_t max_groups) {
   int index = 0;
 
   assert(groups != NULL);
@@ -285,14 +284,6 @@ static int oconfig_to_cgroups(oconfig_item_t *item, rdt_core_group_t *groups,
       return (-EINVAL);
     }
 
-    for (int i = 0; i < n; i++) {
-      if (cores[i] > max_core) {
-        ERROR(RDT_PLUGIN ": Core group (%s) contains invalid core id (%d)",
-              item->values[j].value.string, (int)cores[i]);
-        return (-EINVAL);
-      }
-    }
-
     /* set core group info */
     ret = cgroup_set(&groups[index], item->values[j].value.string, cores, n);
     if (ret < 0)
@@ -395,6 +386,15 @@ static int rdt_default_cgroups(void) {
   return g_rdt->pqos_cpu->num_cores;
 }
 
+static int rdt_is_core_id_valid(int core_id) {
+
+  for (int i = 0; i < g_rdt->pqos_cpu->num_cores; i++)
+    if (core_id == g_rdt->pqos_cpu->cores[i].lcore)
+      return 1;
+
+  return 0;
+}
+
 static int rdt_config_cgroups(oconfig_item_t *item) {
   int n = 0;
   enum pqos_mon_event events = 0;
@@ -413,14 +413,27 @@ static int rdt_config_cgroups(oconfig_item_t *item) {
     DEBUG(RDT_PLUGIN ":  [%d]: %s", j, item->values[j].value.string);
   }
 
-  n = oconfig_to_cgroups(item, g_rdt->cgroups, RDT_MAX_CORES,
-                         g_rdt->pqos_cpu->num_cores - 1);
+  n = oconfig_to_cgroups(item, g_rdt->cgroups, g_rdt->pqos_cpu->num_cores);
   if (n < 0) {
     rdt_free_cgroups();
     ERROR(RDT_PLUGIN ": Error parsing core groups configuration.");
     return (-EINVAL);
   }
 
+  /* validate configured core id values */
+  for (int group_idx = 0; group_idx < n; group_idx++) {
+    for (int core_idx = 0; core_idx < g_rdt->cgroups[group_idx].num_cores;
+         core_idx++) {
+      if (!rdt_is_core_id_valid(g_rdt->cgroups[group_idx].cores[core_idx])) {
+        ERROR(RDT_PLUGIN ": Core group '%s' contains invalid core id '%d'",
+                g_rdt->cgroups[group_idx].desc,
+                (int)g_rdt->cgroups[group_idx].cores[core_idx]);
+        rdt_free_cgroups();
+        return (-EINVAL);
+      }
+    }
+  }
+
   if (n == 0) {
     /* create default core groups if "Cores" config option is empty */
     n = rdt_default_cgroups();
@@ -467,6 +480,10 @@ static int rdt_config_cgroups(oconfig_item_t *item) {
   return (0);
 }
 
+static void rdt_pqos_log(void *context, const size_t size, const char *msg) {
+  DEBUG(RDT_PLUGIN ": %s", msg);
+}
+
 static int rdt_preinit(void) {
   int ret;
 
@@ -481,15 +498,12 @@ static int rdt_preinit(void) {
     return (-ENOMEM);
   }
 
-  /* In case previous instance of the application was not closed properly
-   * call fini and ignore return code. */
-  pqos_fini();
+  struct pqos_config pqos = {.fd_log = -1,
+                             .callback_log = rdt_pqos_log,
+                             .context_log = NULL,
+                             .verbose = 0};
 
-  /* TODO:
-   * stdout should not be used here. Will be reworked when support of log
-   * callback is added to PQoS library.
-  */
-  ret = pqos_init(&(struct pqos_config){.fd_log = STDOUT_FILENO});
+  ret = pqos_init(&pqos);
   if (ret != PQOS_RETVAL_OK) {
     ERROR(RDT_PLUGIN ": Error initializing PQoS library!");
     goto rdt_preinit_error1;
@@ -514,6 +528,9 @@ static int rdt_preinit(void) {
     goto rdt_preinit_error2;
   }
 
+  /* Reset pqos monitoring groups registers */
+  pqos_mon_reset();
+
   return (0);
 
 rdt_preinit_error2: