Merge pull request #13 from mila-iqia/feat/optional_connected_mode

feat: Add new parameter infiniband_ipoib_enhanced

defaults/main.yml

@@ -69,3 +69,9 @@ infiniband_install_kernel_modules: True
 # given VM could run.
 #
 infiniband_guid_prefix: "4d:69:6c:61:00"
+
+# Configure Enhanced IPoIB
+# For ConnectX-4 and later, Mellanox recommends to keep Enhanced IPoIB enabled.
+# This parameter only has effect on RHEl-like OS. If set to False, the IPoIB
+# interfaces will default to Connected mode.
+infiniband_ipoib_enhanced: True

handlers/main.yml

@@ -11,6 +11,11 @@
     name: openibd.service
     state: started
 
+- name: Restart openibd
+  ansible.builtin.systemd:
+    name: openibd.service
+    state: restarted
+
 - name: Reboot to load new configurations
   throttle: 1
   ansible.builtin.reboot:

tasks/configure-RedHat.yml

@@ -9,3 +9,9 @@
     label: "Configure {{ item.iface }}"
   notify: Restart interface
   register: configure_ipoib
+
+- name: Configure ipoib_enhanced
+  ansible.builtin.lineinfile:
+    path: /etc/modprobe.d/ib_ipoib_enhanced.conf
+    line: "options ib_ipoib ipoib_enhanced={{ infiniband_ipoib_enhanced | bool }}"
+  notify: Restart openibd

templates/ifcfg-ib.j2

@@ -18,5 +18,7 @@ BOOTPROTO=static
 ONBOOT=yes
 IPV4_FAILURE_FATAL=yes
 IPV6INIT=no
+{% if not infiniband_ipoib_enhanced %}
 MTU=65520
 CONNECTED_MODE=yes
+{% endif %}