1import os
2
3import infra.basetest
4
5
6class TestEthtool(infra.basetest.BRTest):
7    # This ethtool test uses an emulated Intel e1000e adapted (which
8    # is well supported by Qemu, the Kernel and ethtool). We are not
9    # using the usual virtio_net because it's not supporting some
10    # ethtool features like adapter testing. For that reason, we need
11    # to compile a Kernel.
12    kernel_fragment = \
13        infra.filepath("tests/package/test_ethtool/linux-e1000e.fragment")
14    config = \
15        f"""
16        BR2_aarch64=y
17        BR2_TOOLCHAIN_EXTERNAL=y
18        BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
19        BR2_LINUX_KERNEL=y
20        BR2_LINUX_KERNEL_CUSTOM_VERSION=y
21        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.6.27"
22        BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
23        BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
24        BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{kernel_fragment}"
25        BR2_PACKAGE_ETHTOOL=y
26        BR2_TARGET_ROOTFS_EXT2=y
27        BR2_TARGET_ROOTFS_EXT2_4=y
28        # BR2_TARGET_ROOTFS_TAR is not set
29        """
30
31    def test_run(self):
32        drive = os.path.join(self.builddir, "images", "rootfs.ext4")
33        kern = os.path.join(self.builddir, "images", "Image")
34        self.emulator.boot(arch="aarch64",
35                           kernel=kern,
36                           kernel_cmdline=["root=/dev/vda console=ttyAMA0"],
37                           options=["-M", "virt",
38                                    "-cpu", "cortex-a57",
39                                    "-m", "256M",
40                                    "-netdev", "user,id=test_net",
41                                    "-net", "nic,model=e1000e,netdev=test_net",
42                                    "-drive", f"file={drive},if=virtio,format=raw"])
43        self.emulator.login()
44
45        # We check the program can run.
46        self.assertRunOk("ethtool --version")
47
48        # We check a simple query runs correctly.
49        self.assertRunOk("ethtool eth0")
50
51        # We query the driver name and check it's the expected e1000e.
52        out, ret = self.emulator.run("ethtool -i eth0")
53        self.assertEqual(ret, 0)
54        self.assertEqual(out[0], "driver: e1000e")
55
56        # We request an adapter online self test.
57        self.assertRunOk("ethtool -t eth0 online", timeout=30)
58
59        # We query offload parameters and check TSO are enabled (this
60        # is the driver default).
61        out, ret = self.emulator.run("ethtool -k eth0")
62        self.assertEqual(ret, 0)
63        self.assertIn("tcp-segmentation-offload: on", out)
64
65        # We request to disable TSO.
66        self.assertRunOk("ethtool -K eth0 tcp-segmentation-offload off")
67
68        # We check again. TSO should now be disabled.
69        out, ret = self.emulator.run("ethtool -k eth0")
70        self.assertEqual(ret, 0)
71        self.assertIn("tcp-segmentation-offload: off", out)
72