Adding support for IPoIb interfaces

The patch allow to ifup/ifdown IpoIB interfaces from network-scripts
The required config is the following
DEVICE=ib0.8005 # ib0 the it IB interface
TYPE=Infiniband # the type is Infiniband
PKEY=yes        # indicator that it's IPoIB interface
PKEY_ID=5       # the pkey number

Author: root

network-scripts/ifdown-Infiniband

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+cd /etc/sysconfig/network-scripts
+. ./network-functions
+CONFIG=${1}
+source_config
+
+if is_true "${PKEY}" && [ "${TYPE}" = "Infiniband" ] ; then
+    # IPoIB support
+    if [ -d /sys/devices/virtual/net/${DEVICE} ]; then
+        ip link del "${DEVICE}"
+    fi
+fi
+exit 0