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https://github.com/cloud-hypervisor/cloud-hypervisor.git
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tests: Refactor test_ovs_dpdk
This patch adds a separate function to launch two guest VMs and ensure they are connected through ovs-dpdk, so that we can reuse this function in other tests, e.g. the test for live-migration with ovs-dpdk. Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen
Rob Bradford
parent
977a893d86
commit
9023412e31
@ -349,6 +349,106 @@ mod tests {
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cmd.status().expect("Failed to launch ch-remote").success()
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}
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// Setup two guests and ensure they are connected through ovs-dpdk
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fn setup_ovs_dpdk_guests(guest1: &Guest, guest2: &Guest, api_socket: &str) -> (Child, Child) {
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// Create OVS-DPDK bridge and ports
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assert!(exec_host_command_status(
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"ovs-vsctl add-br ovsbr0 -- set bridge ovsbr0 datapath_type=netdev",
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)
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.success());
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assert!(exec_host_command_status("ovs-vsctl add-port ovsbr0 vhost-user1 -- set Interface vhost-user1 type=dpdkvhostuserclient options:vhost-server-path=/tmp/dpdkvhostclient1").success());
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assert!(exec_host_command_status("ovs-vsctl add-port ovsbr0 vhost-user2 -- set Interface vhost-user2 type=dpdkvhostuserclient options:vhost-server-path=/tmp/dpdkvhostclient2").success());
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assert!(exec_host_command_status("ip link set up dev ovsbr0").success());
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assert!(exec_host_command_status("service openvswitch-switch restart").success());
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let mut child1 = GuestCommand::new(guest1)
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.args(&["--cpus", "boot=2"])
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.args(&["--memory", "size=0,shared=on"])
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.args(&["--memory-zone", "id=mem0,size=1G,shared=on,host_numa_node=0"])
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.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
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.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
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.default_disks()
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.args(&["--net", guest1.default_net_string().as_str(), "vhost_user=true,socket=/tmp/dpdkvhostclient1,num_queues=2,queue_size=256,vhost_mode=server"])
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.capture_output()
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.spawn()
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.unwrap();
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#[cfg(target_arch = "x86_64")]
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let guest_net_iface = "ens5";
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#[cfg(target_arch = "aarch64")]
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let guest_net_iface = "enp0s5";
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let r = std::panic::catch_unwind(|| {
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guest1.wait_vm_boot(None).unwrap();
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guest1
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.ssh_command(&format!(
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"sudo ip addr add 172.100.0.1/24 dev {}",
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guest_net_iface
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))
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.unwrap();
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guest1
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.ssh_command(&format!("sudo ip link set up dev {}", guest_net_iface))
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.unwrap();
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let guest_ip = guest1.network.guest_ip.clone();
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thread::spawn(move || {
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ssh_command_ip(
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"nc -l 12345",
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&guest_ip,
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DEFAULT_SSH_RETRIES,
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DEFAULT_SSH_TIMEOUT,
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)
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.unwrap();
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});
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});
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if r.is_err() {
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let _ = child1.kill();
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let output = child1.wait_with_output().unwrap();
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handle_child_output(r, &output);
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panic!("Test should already be failed/panicked"); // To explicitly mark this block never return
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}
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let mut child2 = GuestCommand::new(guest2)
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.args(&["--api-socket", api_socket])
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.args(&["--cpus", "boot=2"])
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.args(&["--memory", "size=0,shared=on"])
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.args(&["--memory-zone", "id=mem0,size=1G,shared=on,host_numa_node=0"])
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.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
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.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
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.default_disks()
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.args(&["--net", guest2.default_net_string().as_str(), "vhost_user=true,socket=/tmp/dpdkvhostclient2,num_queues=2,queue_size=256,vhost_mode=server"])
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.capture_output()
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.spawn()
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.unwrap();
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let r = std::panic::catch_unwind(|| {
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guest2.wait_vm_boot(None).unwrap();
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guest2
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.ssh_command(&format!(
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"sudo ip addr add 172.100.0.2/24 dev {}",
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guest_net_iface
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))
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.unwrap();
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guest2
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.ssh_command(&format!("sudo ip link set up dev {}", guest_net_iface))
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.unwrap();
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// Check the connection works properly between the two VMs
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guest2.ssh_command("nc -vz 172.100.0.1 12345").unwrap();
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});
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if r.is_err() {
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let _ = child1.kill();
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let _ = child2.kill();
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let output = child2.wait_with_output().unwrap();
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handle_child_output(r, &output);
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panic!("Test should already be failed/panicked"); // To explicitly mark this block never return
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}
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(child1, child2)
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}
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#[derive(Debug)]
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enum Error {
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Parsing(std::num::ParseIntError),
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@ -5340,102 +5440,19 @@ mod tests {
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#[test]
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fn test_ovs_dpdk() {
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// Create OVS-DPDK bridge and ports
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assert!(exec_host_command_status(
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"ovs-vsctl add-br ovsbr0 -- set bridge ovsbr0 datapath_type=netdev",
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)
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.success());
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assert!(exec_host_command_status("ovs-vsctl add-port ovsbr0 vhost-user1 -- set Interface vhost-user1 type=dpdkvhostuserclient options:vhost-server-path=/tmp/dpdkvhostclient1").success());
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assert!(exec_host_command_status("ovs-vsctl add-port ovsbr0 vhost-user2 -- set Interface vhost-user2 type=dpdkvhostuserclient options:vhost-server-path=/tmp/dpdkvhostclient2").success());
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assert!(exec_host_command_status("ip link set up dev ovsbr0").success());
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assert!(exec_host_command_status("service openvswitch-switch restart").success());
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let focal1 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
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let guest1 = Guest::new(Box::new(focal1));
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let mut child1 = GuestCommand::new(&guest1)
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.args(&["--cpus", "boot=2"])
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.args(&["--memory", "size=0,shared=on"])
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.args(&["--memory-zone", "id=mem0,size=1G,shared=on,host_numa_node=0"])
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.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
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.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
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.default_disks()
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.args(&["--net", guest1.default_net_string().as_str(), "vhost_user=true,socket=/tmp/dpdkvhostclient1,num_queues=2,queue_size=256,vhost_mode=server"])
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.capture_output()
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.spawn()
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.unwrap();
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#[cfg(target_arch = "x86_64")]
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let guest_net_iface = "ens5";
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#[cfg(target_arch = "aarch64")]
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let guest_net_iface = "enp0s5";
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let r = std::panic::catch_unwind(|| {
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guest1.wait_vm_boot(None).unwrap();
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guest1
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.ssh_command(&format!(
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"sudo ip addr add 172.100.0.1/24 dev {}",
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guest_net_iface
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))
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.unwrap();
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guest1
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.ssh_command(&format!("sudo ip link set up dev {}", guest_net_iface))
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.unwrap();
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let guest_ip = guest1.network.guest_ip.clone();
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thread::spawn(move || {
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ssh_command_ip(
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"nc -l 12345",
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&guest_ip,
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DEFAULT_SSH_RETRIES,
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DEFAULT_SSH_TIMEOUT,
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)
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.unwrap();
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});
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});
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if r.is_err() {
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let _ = child1.kill();
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let output = child1.wait_with_output().unwrap();
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handle_child_output(r, &output);
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panic!("Test should already be failed/panicked"); // To explicitly mark this block never return
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}
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let focal2 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
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let guest2 = Guest::new(Box::new(focal2));
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let api_socket = temp_api_path(&guest2.tmp_dir);
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let (mut child1, mut child2) = setup_ovs_dpdk_guests(&guest1, &guest2, &api_socket);
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// Create the snapshot directory
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let snapshot_dir = temp_snapshot_dir_path(&guest2.tmp_dir);
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let mut child2 = GuestCommand::new(&guest2)
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.args(&["--api-socket", &api_socket])
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.args(&["--cpus", "boot=2"])
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.args(&["--memory", "size=0,shared=on"])
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.args(&["--memory-zone", "id=mem0,size=1G,shared=on,host_numa_node=0"])
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.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
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.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
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.default_disks()
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.args(&["--net", guest2.default_net_string().as_str(), "vhost_user=true,socket=/tmp/dpdkvhostclient2,num_queues=2,queue_size=256,vhost_mode=server"])
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.capture_output()
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.spawn()
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.unwrap();
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let r = std::panic::catch_unwind(|| {
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guest2.wait_vm_boot(None).unwrap();
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guest2
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.ssh_command(&format!(
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"sudo ip addr add 172.100.0.2/24 dev {}",
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guest_net_iface
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))
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.unwrap();
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guest2
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.ssh_command(&format!("sudo ip link set up dev {}", guest_net_iface))
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.unwrap();
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// Check the connection works properly between the two VMs
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guest2.ssh_command("nc -vz 172.100.0.1 12345").unwrap();
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// Remove one of the two ports from the OVS bridge
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assert!(exec_host_command_status("ovs-vsctl del-port vhost-user1").success());
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