Add sriov support in HCO

Change-Id: Idd18e3fd3d0657c11608a4f1a7af1eb40cbca3bf

airship-host-config/roles/exec/tasks/exec.yml

@@ -1,14 +1,17 @@
 - block:
   - name: copy script
+    become: yes
     copy:
       src: /opt/ansible/scripts/{{ exec_item.name }}
-      dest: ~/.
+      dest: /root
       mode: '0755'
   - name: exec script command
-    command: "~/{{ exec_item.name }} {{ exec_item.args | default('') }}"
+    become: yes
+    command: "/root/{{ exec_item.name }} {{ exec_item.args | default('') }}"
     environment: "{{ exec_item.environment | default('') }}"
   always:
   - name: delete the file
+    become: yes
     file:
       state: absent
-      path: "~/{{ exec_item.name }}"
+      path: "/root/{{ exec_item.name }}"

airship-host-config/scripts/configure_sriov.py

@@ -0,0 +1,34 @@
+#!/usr/bin/python3
+
+import subprocess
+
+LSPCI_CMD = 'lspci | grep Ethernet'
+SYS_DEV_PATH = "/sys/bus/pci/devices/0000"
+SRIOV_TOTAL_VFS_file = "/sriov_totalvfs"
+SRIOV_NUM_VFS_file = "/sriov_numvfs"
+SRIOV_SUPPORTED_NICS = ["82599ES", "X700 Series", "E800 Series"]
+
+
+def configure_sriov_nic():
+    process = subprocess.run(LSPCI_CMD, shell=True, check=True,
+                stdout=subprocess.PIPE, universal_newlines=True)
+    proc = process.stdout.split('\n')
+    sriov_nics = find_sriov_supported_nics(proc)
+    for nic in sriov_nics:
+        NIC_BINARY_NUM = nic.split(' ')[0]
+        fp = open(SYS_DEV_PATH + ":" + NIC_BINARY_NUM + SRIOV_TOTAL_VFS_file)
+        if int(fp.read()) > 32:
+            fp.close()
+            with open(SYS_DEV_PATH+ ":" + NIC_BINARY_NUM + SRIOV_NUM_VFS_file, 'w') as file:
+                file.write('42')
+
+def find_sriov_supported_nics(nics):
+    sriov_supported_nics = []
+    for nic in nics:
+        for sriov_nic in SRIOV_SUPPORTED_NICS:
+            if sriov_nic in nic:
+                sriov_supported_nics.append(nic)
+    return sriov_supported_nics
+
+if __name__ == "__main__":
+    configure_sriov_nic()