#!/bin/bash

# Copyright (c) 2016 Intel Corporation

# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:

# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

# Author: Clayne B. Robison <clayne dot b dot robison at intel dot com>


#THis script verifies that the caller is root, and then unloads from the kernel all drivers for the XL710 virtual function (both kernel and DPDK) in the HostVM. It also unmounts the hugepages that DPDK was using. 

#This script can be called during the lab by each learner, or the instructor can call it on each HostVM by using the provisioning-master/utility/hvm_07_unload_all_x710_drivers.sh script on the Ansible controller.

if [ "$(id -u)" != "0" ]; then
        echo "Sorry, you are not root."
        exit 1
fi

rmmod i40e
rmmod i40evf
rmmod ixgbe
rmmod igb_uio
rmmod cuse
rmmod fuse
rmmod uio
rmmod eventfd_link
rmmod ioeventfd
umount /mnt/huge