fuel plugin: Initial version

[ovsnfv.git] / fuel-plugin-ovsnfv / deployment_scripts / puppet / modules / ovsdpdk / files / set_vcpu_pin.sh

diff --git a/fuel-plugin-ovsnfv/deployment_scripts/puppet/modules/ovsdpdk/files/set_vcpu_pin.sh b/fuel-plugin-ovsnfv/deployment_scripts/puppet/modules/ovsdpdk/files/set_vcpu_pin.sh
new file mode 100755 (executable)
index 0000000..0cb3791
--- /dev/null
+++ b/fuel-plugin-ovsnfv/deployment_scripts/puppet/modules/ovsdpdk/files/set_vcpu_pin.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env  bash
+
+# Small script for calculation of cores not suitable for deployment
+# of VM's and adaptation of nova.conf accordingly
+# nova.conf path should come as first param
+# this should be executed when nova is enabled and already configured
+
+source /etc/default/ovs-dpdk
+
+OVS_CORE_MASK=$(echo $OVS_CORE_MASK | sed 's/^0x//')
+OVS_PMD_CORE_MASK=$(echo $OVS_PMD_CORE_MASK | sed 's/^0x//')
+BAD_CORES=$((`echo $((16#${OVS_CORE_MASK}))` | `echo $((16#${OVS_PMD_CORE_MASK}))`))
+TOTAL_CORES=`nproc`
+vcpu_pin_set=""
+
+for cpu in $(seq 0 `expr $TOTAL_CORES - 1`);do
+    tmp=`echo 2^$cpu | bc`
+    if [ $(($tmp & $BAD_CORES)) -eq 0 ]; then
+        vcpu_pin_set+=$cpu","
+    fi
+done
+vcpu_pin_set=${vcpu_pin_set::-1}
+
+crudini --set $1 DEFAULT vcpu_pin_set $vcpu_pin_set