CI: wait for the network interface in PCI passthrough tests

The network driver initializes asynchronously, and it may not be ready
yet by the time the startup script is called. This is especially the
case for USB network adapter (where the PCI device is the USB
controller) in the upcoming runner.

Don't bother about separate timeout - test timeout will cover this part
too.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

diff --git a/automation/scripts/qubes-x86-64.sh b/automation/scripts/qubes-x86-64.sh
index 7867724ebdd6fed400c0581ec56eb4e9302e6c9f..2b04d281d74bb6ba0dd5c88a7e9acf0575889781 100755 (executable)
--- a/automation/scripts/qubes-x86-64.sh
+++ b/automation/scripts/qubes-x86-64.sh
@@ -104,6 +104,7 @@ on_reboot = "destroy"
         domU_check="
 set -x -e
 interface=eth0
+while ! [ -e \"/sys/class/net/\$interface\" ]; do sleep 1; done
 ip link set \"\$interface\" up
 timeout 30s udhcpc -i \"\$interface\"
 pingip=\$(ip -o -4 r show default|cut -f 3 -d ' ')