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scripts/qat_setup: Remove VFs' pci id from the target bind driver

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Do this before the attempt to bind these devices is made. This is to
make sure script works on subsequent runs.

Scripts itself executes the qat_service which disables potential VFs
of the target PF. In case VFs were previously bound to one of the
uio drivers (via new_id) the next write to that attr will fail not
rebinding the devices again. To avoid that, remove the VFs' id first
and then attempt to bind them to the uio driver.

Signed-off-by: Michal Berger <michal.berger@intel.com>
Change-Id: I4818a2e3e663a4136084ce4bbb85ccfcfde1ae42
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15427
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
This commit is contained in:
Michal Berger 2022-11-14 09:15:36 +01:00 committed by Tomasz Zawadzki
parent 3bdb00199a
commit 5121b9a2fd
1 changed files with 1 additions and 0 deletions
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1
scripts/qat_setup.sh
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@ -136,6 +136,7 @@ else
exit 1
fi
echo -n "8086 37c9" > /sys/bus/pci/drivers/$driver_to_bind/remove_id 2> /dev/null
echo -n "8086 37c9" > /sys/bus/pci/drivers/$driver_to_bind/new_id
for vf in "${qat_vf_bdfs[@]}"; do
if ! ls -l /sys/bus/pci/devices/$vf/driver | grep -q $driver_to_bind; then