feature: Added Nvidia GPU application support (#6024)

includes/polling/applications/nvidia.inc.php

@@ -0,0 +1,65 @@
+<?php
+
+use LibreNMS\RRD\RrdDefinition;
+
+$name = 'nvidia';
+$app_id = $app['app_id'];
+
+$options      = '-O qv';
+$mib          = 'NET-SNMP-EXTEND-MIB';
+$oid          = 'nsExtendOutputFull.6.110.118.105.100.105.97';
+$gpus = snmp_walk($device, $oid, $options, $mib);
+
+$gpuArray = explode("\n", $gpus);
+
+$rrd_def = RrdDefinition::make()
+    ->addDataset('pwr', 'GAUGE', 0)
+    ->addDataset('temp', 'GAUGE', 0)
+    ->addDataset('sm', 'GAUGE', 0)
+    ->addDataset('mem', 'GAUGE', 0)
+    ->addDataset('enc', 'GAUGE', 0)
+    ->addDataset('dec', 'GAUGE', 0)
+    ->addDataset('mclk', 'GAUGE', 0)
+    ->addDataset('pclk', 'GAUGE', 0)
+    ->addDataset('pviol', 'GAUGE', 0)
+    ->addDataset('tviol', 'GAUGE', 0)
+    ->addDataset('fb', 'GAUGE', 0)
+    ->addDataset('bar1', 'GAUGE', 0)
+    ->addDataset('sbecc', 'GAUGE', 0)
+    ->addDataset('dbecc', 'GAUGE', 0)
+    ->addDataset('pci', 'GAUGE', 0)
+    ->addDataset('rxpci', 'GAUGE', 0)
+    ->addDataset('txpci', 'GAUGE', 0);
+
+$int=0;
+while (isset($gpuArray[$int])) {
+    list($gpu, $pwr, $temp, $sm, $mem, $enc, $dec, $mclk, $pclk, $pviol, $tviol,
+        $fb, $bar1, $sbecc, $dbecc, $pci, $rxpci, $txpci)=explode(",", $gpuArray[$int]);
+
+        $rrd_name = array('app', $name, $app_id, $int);
+
+        $fields = array(
+            'pwr' => $pwr,
+            'temp' => $temp,
+            'sm' => $sm,
+            'mem' => $mem,
+            'enc' => $enc,
+            'dec' => $dec,
+            'mclk' => $mclk,
+            'pclk' => $pclk,
+            'pviol' => $pviol,
+            'tviol' => $tviol,
+            'fb' => $fb,
+            'bar1' => $bar1,
+            'sbecc' => $sbecc,
+            'dbecc' => $dbecc,
+            'pci' => $pci,
+            'rxpci' => $rxpci,
+            'txpci' => $txpci
+        );
+
+        $tags = array('name' => $name, 'app_id' => $app_id, 'rrd_def' => $rrd_def, 'rrd_name' => $rrd_name);
+        data_update($device, 'app', $tags, $fields);
+
+    $int++;
+}