EEH test for vnic interfaces

Adding test to trigger EEH for vnic interfaces from vios. The test does the following:

change the active logport to the original logport
login to the vios and find the respective backing device
trigger EEH from vios
check for the failover on the OS side to conclude if the eeh was successful or not.

Signed-off-by: Vaishnavi Bhat <[email protected]>

io/net/virt-net/network_virtualization.py

@@ -35,6 +35,9 @@
 from avocado.utils.network.hosts import LocalHost
 from avocado.utils.ssh import Session
 from avocado.utils import wait
+import pexpect
+from pexpect import pxssh
+import re
 
 IS_POWER_NV = 'PowerNV' in open('/proc/cpuinfo', 'r').read()
 IS_KVM_GUEST = 'qemu' in open('/proc/cpuinfo', 'r').read()
@@ -594,6 +597,61 @@ def test_vnic_hmc_dlpar(self):
                 count += 1
         self.check_dmesg_error()
 
+    def test_vnic_eeh(self):
+        """
+        Perform EEH on vnic interface from vios
+        """
+        if self.backing_dev_count() == 1:
+            self.cancel("EEH cannot be tested as the interface has single backing device")
+        current_logport = self.get_active_device_logport(self.slot_num[0])
+        if not self.original_logport == current_logport:
+            self.trigger_failover(self.original_logport)
+        else:
+            self.log.info("Unable to set the logport to original one")
+        time.sleep(5)
+        self.session = Session(self.vios_ip, user=self.vios_user,
+                               password=self.vios_pwd)
+        self.session.cleanup_master()
+        if not wait.wait_for(self.session.connect, timeout=30):
+            self.fail("Failed connecting to VIOS")
+        cmd = "ioscli lsmap -all -vnic -cpid %s" % self.lpar_id
+        vnic_servers = self.session.cmd(cmd).stdout_text.splitlines()
+        device = self.find_device(self.mac_id[0])
+        temp_idx = vnic_servers.index("Client device name:" + device)
+        vnic_bankingdevice = vnic_servers[temp_idx - 3].split(":")[1]
+        vios = pxssh.pxssh()
+        try:
+            vios.login(self.vios_ip, self.vios_user, self.vios_pwd)
+        except Exception:
+            self.warn("Unable to login to vios")
+        time.sleep(2)
+        vios.sendline("oem_setup_env")
+        time.sleep(5)
+        vios.sendline("kdb")
+        time.sleep(5)
+        vios.sendline("set scroll false")
+        time.sleep(5)
+        cmd = "mlxcent setacs %s" % vnic_bankingdevice
+        vios.sendline(cmd)
+        time.sleep(2)
+        vios.sendline("mlxcent pollq 0")
+        vios.prompt()
+        mapstart = vios.before.decode("utf-8").split("\r\n ")
+        for i in mapstart:
+            if re.search("map_start", i):
+                map_start_value = i.split("=")[1]
+        vios.sendline("quit")
+        cmd = "./eeh_tool_64 %s 3 15 -w 64 -a %s -m 0xFFFFFFFFFFFFF000" % (vnic_bankingdevice, map_start_value)
+        vios.sendline(cmd)
+        time.sleep(5)
+        active_logport = self.get_active_device_logport(self.slot_num[0])
+        if current_logport == active_logport:
+            self.fail("EEH unsuccessful as there is no failover triggered on the OS")
+        device = self.find_device(self.mac_id[0])
+        networkinterface = NetworkInterface(device, self.local)
+        if networkinterface.ping_check(self.peer_ip[0], count=5) is not None:
+            self.fail("Ping to peer failed. EEH has affected Network connectivity")
+
     def backing_dev_count_w_slot_num(self, slot):
         """
         Lists the count of backing devices