Added sysctl changes support

Applying misconfigured sysctl.conf

Change-Id: Idee33fba48a94d1b3488cb58b40fd782d8f5ab27

deployment_scripts/common

@@ -16,6 +16,39 @@
 
 readonly SCRIPT_NAME=`basename $0`
 
+sysctl_conf_no_apply=no
+
+function sysctl_conf (){
+
+  # params
+  op="$1"
+  var="$2"
+  val="$3"
+
+  # apply
+  if [ "x$op" == "xapply" ]; then
+    sysctl -e -p > /dev/null 2>&1
+  fi
+
+  # unset
+  if [ "x$op" == "xunset" -a "x$var" != "x" ]; then
+    sed -e "/^[\t\ ]*$var[\t\ ]*=.*$/d" -i /etc/sysctl.conf
+    if [ "x$sysctl_conf_no_apply" != "xyes" ]; then
+      sysctl_conf apply
+    fi
+  fi
+
+  # set
+  if [ "x$op" == "xset" -a "x$var" != "x" -a "x$val" != "x" ]; then
+    sysctl_conf_no_apply=yes
+    sval="$val"
+    sysctl_conf unset "$var"
+    echo "$var=$sval" >> /etc/sysctl.conf
+    sysctl_conf apply
+    sysctl_conf_no_apply=no
+  fi
+}
+
 function logger_print () {
   priority=$1
   msg=$2

deployment_scripts/install_ofed.sh

@@ -152,3 +152,6 @@ fi
 # OEM cards require a different dedicated OFED build, this build doesn't
 # support them.
 update_fw_if_not_oem
+
+# Decrease loglevels for prevent flooding kernel messages to console
+sysctl_conf set 'kernel.printk' '4 4 1 7'

deployment_scripts/sriov.sh

@@ -76,9 +76,7 @@ function reduce_mac_caching_timeout () {
   else
     timeout=$VF_MAC_CACHING_TIMEOUT_DEF
   fi
-  sed -e "/^.*net\.ipv4\.route\.gc_timeout.*$/d" -i /etc/sysctl.conf
-  echo "net.ipv4.route.gc_timeout=$timeout" >> /etc/sysctl.conf
-  sysctl -p
+  sysctl_conf set 'net.ipv4.route.gc_timeout' "$timeout"
 }
 
 function set_modprobe_file () {

metadata.yaml

@@ -5,7 +5,7 @@ name: mellanox-plugin
 title: Mellanox Openstack features
 
 # Plugin version
-version: 0.2.24
+version: 0.2.25
 
 # Description
 description: Enable features over Mellanox hardware