2017-05-05 19:24:16 +00:00
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#!/bin/bash
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#
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# Detach and rebind a PCI device to a PCI kernel driver
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#
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# @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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# @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
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# @license GNU General Public License (version 3)
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#
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# VILLASnode
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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##################################################################################
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if [ "$#" -ne 2 ]; then
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echo "usage: $0 BUS:DEV:FNC DRIVER"
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exit 1
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fi
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BDF=$1
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DRIVER=$2
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VENDOR=$(cut -b3- /sys/bus/pci/devices/${BDF}/vendor)
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DEVICE=$(cut -b3- /sys/bus/pci/devices/${BDF}/device)
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SYSFS_DEVICE=/sys/bus/pci/devices/${BDF}
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SYSFS_DRIVER=/sys/bus/pci/drivers/${DRIVER}
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echo "Device: $VENDOR $DEVICE $BDF"
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if [ -L "${SYSFS_DEVICE}/driver" ] && [ -d "${SYSFS_DEVICE}/driver" ]; then
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echo ${BDF} > ${SYSFS_DEVICE}/driver/unbind
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fi
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echo "${VENDOR} ${DEVICE}" > ${SYSFS_DRIVER}/new_id
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echo "${BDF}" > ${SYSFS_DRIVER}/bind
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echo "${VENDOR} ${DEVICE}" > ${SYSFS_DRIVER}/remove_id
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