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#!/bin/bash
# Based on:
# https://gerrit.akraino.org/r/#/c/icn/+/1359/1/deploy/kud-plugin-addons/device-plugins/sriov/driver/install_iavf_drivers.sh
nic_models=(X710 XL710 X722)
nic_drivers=(i40e)
device_checkers=(is_not_used is_driver_match is_model_match)
function install_iavf_driver {
local ifname=$1
echo "Installing modules..."
echo "Installing i40evf blacklist file..."
mkdir -p "/etc/modprobe.d/"
echo "blacklist i40evf" > "/etc/modprobe.d/iavf-blacklist-i40evf.conf"
kver=`uname -a | awk '{print $3}'`
install_mod_dir=/lib/modules/$kver/updates/drivers/net/ethernet/intel/iavf/
echo "Installing driver in $install_mod_dir"
mkdir -p $install_mod_dir
cp iavf.ko $install_mod_dir
echo "Installing kernel module i40evf..."
depmod -a
modprobe i40evf
modprobe iavf
echo "Enabling VF on interface $ifname..."
echo "/sys/class/net/$ifname/device/sriov_numvfs"
echo '8' > /sys/class/net/$ifname/device/sriov_numvfs
}
function is_not_used {
local ifname=$1
route_info=`ip route show | grep $ifname`
if [ -z "$route_info" ]; then
return 1
else
return 0
fi
}
function is_driver_match {
local ifname=$1
driver=`cat /sys/class/net/$ifname/device/uevent | grep DRIVER | cut -f2 -d "="`
if [ ! -z "$driver" ]; then
for nic_driver in ${nic_drivers[@]}; do
if [ "$driver" = "$nic_driver" ]; then
return 1
fi
done
fi
return 0
}
function is_model_match {
local ifname=$1
pci_addr=`cat /sys/class/net/$ifname/device/uevent | grep PCI_SLOT_NAME | cut -f2 -d "=" | cut -f2,3 -d ":"`
if [ ! -z "$pci_addr" ]; then
for nic_model in ${nic_models[@]}; do
model_match=$(lspci | grep $pci_addr | grep $nic_model)
if [ ! -z "$model_match" ]; then
return 1
fi
done
fi
return 0
}
function get_sriov_ifname {
for net_device in /sys/class/net/*/ ; do
if [ -e $net_device/device/sriov_numvfs ] ; then
ifname=$(basename $net_device)
for device_checker in ${device_checkers[@]}; do
eval $device_checker $ifname
if [ "$?" = "0" ]; then
ifname=""
break
fi
done
if [ ! -z "$ifname" ]; then
echo $ifname
return
fi
fi
done
echo ''
}
if [ $# -ne 1 ] ; then
ifname=$(get_sriov_ifname)
if [ -z "$ifname" ]; then
echo "Cannot find Nic with SRIOV support."
else
install_iavf_driver $ifname
fi
else
ifname=$1
if [ ! -e /sys/class/net/$ifname/device/sriov_numvfs ] ; then
echo "${ifname} is not a valid sriov interface"
else
install_iavf_driver $ifname
fi
fi
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