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#!/bin/sh -e

removed=

# Unbind user-mode PCI drivers
pci_dirs=`find /sys/bus/pci/drivers -type d -name igb_uio -o -name uio_pci_generic -o -name vfio-pci`
for d in $pci_dirs; do
    for f in ${d}/*; do
        [ -e "${f}/config" ] || continue
        echo 1 > ${f}/remove
        basename `dirname ${f}` | xargs echo -n "Removing driver"; echo " for PCI ID" `basename ${f}`
        removed=y
    done
done
if [ -n "${removed}" ]; then
    echo "There are changes in PCI drivers, rescaning"
    echo 1 > /sys/bus/pci/rescan
else
    echo "There weren't PCI devices binded"
fi