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smoke: use hw ports in grout namespace #392

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smoke: use hw ports in grout namespace #392

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13 changes: 11 additions & 2 deletions smoke/_init.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -125,13 +125,22 @@ port_add() {
local name="$1"
shift
if [ "$use_hardware_ports" = true ]; then
if [ $tap_counter -ge ${#net_interfaces[@]} ]; then
fail "Can not create port. No more hardware ports available."
fi
nsenter -t 1 -n ip link set "${net_interfaces[$tap_counter]}" netns grout
ip link set "${net_interfaces[$tap_counter]}" name "x-$name"
# When test fails prematurely due to insufficient number of ports
# we need to return them back to default namespace and wait a little
# before proceeding to ensure reliable execution
echo "ip link set x-$name netns 1 || :" >> $tmp/restore_interfaces
echo "sleep 1" >> $tmp/restore_interfaces
# When a namespace is deleted while a renamed kernel interface
# is inside it an 'altname' property with the interface original
# name is created. This causes an error on attempt to restore
# the original name. So we need to clear this 'altname' first.
echo "ip link property del dev x-$name altname ${net_interfaces[$tap_counter]} || :" >> $tmp/restore_interfaces
echo "ip link set x-$name name ${net_interfaces[$tap_counter]}" >> $tmp/restore_interfaces
echo "nsenter -t 1 -n ip link property del dev x-$name altname ${net_interfaces[$tap_counter]} || :" >> $tmp/restore_interfaces
echo "nsenter -t 1 -n ip link set x-$name name ${net_interfaces[$tap_counter]} || :" >> $tmp/restore_interfaces
grcli interface add port "$name" devargs "${vfio_pci_ports[$tap_counter]}" "$@"
else
grcli interface add port "$name" devargs "net_tap$tap_counter,iface=x-$name" "$@"
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