98 lines
3.8 KiB
Python
98 lines
3.8 KiB
Python
import os
|
|
|
|
import infra.basetest
|
|
|
|
|
|
class TestKmod(infra.basetest.BRTest):
|
|
# This test uses the "virtio_net" driver compiled as a module. We
|
|
# need to recompile a Kernel for that.
|
|
kernel_fragment = \
|
|
infra.filepath("tests/package/test_kmod/linux-virtio-net.fragment")
|
|
config = \
|
|
f"""
|
|
BR2_aarch64=y
|
|
BR2_TOOLCHAIN_EXTERNAL=y
|
|
BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
|
|
BR2_LINUX_KERNEL=y
|
|
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
|
|
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.6.35"
|
|
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
|
|
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
|
|
BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{kernel_fragment}"
|
|
BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
|
|
BR2_PACKAGE_KMOD=y
|
|
BR2_PACKAGE_KMOD_TOOLS=y
|
|
BR2_TARGET_ROOTFS_EXT2=y
|
|
BR2_TARGET_ROOTFS_EXT2_4=y
|
|
# BR2_TARGET_ROOTFS_TAR is not set
|
|
"""
|
|
|
|
def test_run(self):
|
|
drive = os.path.join(self.builddir, "images", "rootfs.ext4")
|
|
kern = os.path.join(self.builddir, "images", "Image")
|
|
self.emulator.boot(arch="aarch64",
|
|
kernel=kern,
|
|
kernel_cmdline=["root=/dev/vda console=ttyAMA0"],
|
|
options=["-M", "virt",
|
|
"-cpu", "cortex-a57",
|
|
"-m", "256M",
|
|
"-drive", f"file={drive},if=virtio,format=raw"])
|
|
self.emulator.login()
|
|
|
|
# We check the kmod program can run. Busybox does not have a
|
|
# kmod applet, so there is no possible confusion.
|
|
self.assertRunOk("kmod --version")
|
|
|
|
# We check the "modprobe" is the one from kmod, rather than
|
|
# the Busybox applet version.
|
|
out, ret = self.emulator.run("modprobe --version")
|
|
self.assertEqual(ret, 0)
|
|
self.assertTrue(out[0].startswith("kmod version"))
|
|
|
|
# List modules with "kmod list", the virtio-net module should
|
|
# NOT be loaded yet.
|
|
out, ret = self.emulator.run("kmod list")
|
|
self.assertEqual(ret, 0)
|
|
self.assertNotIn("virtio_net", "\n".join(out))
|
|
|
|
# Get module info with modinfo.
|
|
out, ret = self.emulator.run("modinfo virtio-net")
|
|
self.assertEqual(ret, 0)
|
|
lsmod_out = "\n".join(out)
|
|
self.assertRegex(lsmod_out, r'name: *virtio_net')
|
|
self.assertRegex(lsmod_out, r'description: *Virtio network driver')
|
|
|
|
# With this test configuration, we are not supposed to have an
|
|
# eth0 Ethernet interface yet. Attempting to show info on this
|
|
# interface is expected to fail .
|
|
_, ret = self.emulator.run("ip link show dev eth0")
|
|
self.assertNotEqual(ret, 0)
|
|
|
|
# We try to load the module.
|
|
self.assertRunOk("modprobe virtio-net")
|
|
|
|
# We should now see the module in the list. This time, we use
|
|
# the "lsmod" command.
|
|
out, ret = self.emulator.run("lsmod")
|
|
self.assertEqual(ret, 0)
|
|
self.assertIn("virtio_net", "\n".join(out))
|
|
|
|
# The eth0 interface is supposed to be available, after the
|
|
# module loading. We configure the emulator user network to
|
|
# test the driver networking functionality. See:
|
|
# https://wiki.qemu.org/Documentation/Networking
|
|
self.assertRunOk("ip addr add dev eth0 10.0.2.15/24")
|
|
self.assertRunOk("ip link set dev eth0 up")
|
|
|
|
# We check we can ping the emulator.
|
|
ping_cmd = "ping -i 0.3 -c 2 10.0.2.2"
|
|
self.assertRunOk(ping_cmd)
|
|
|
|
# We check we can unload the driver.
|
|
self.assertRunOk("modprobe -r virtio-net")
|
|
|
|
# Now the driver is unloaded, we should no longer be able to
|
|
# ping the emulator.
|
|
_, ret = self.emulator.run(ping_cmd)
|
|
self.assertNotEqual(ret, 0)
|