tasks/main.yml

---
# sriov tasks/main.yml
#
# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
# SPDX-License-Identifier: Apache-2.0

- name: include OS-specific vars
  include_vars: "{{ ansible_os_family }}.yml"

- name: include OS-specific tasks
  include_tasks: "{{ ansible_os_family }}.yml"

- name: Ensure VT-d is enabled in BIOS
  tags: molecule-notest
  shell: "set -o pipefail && dmesg | grep DMAR-IR"
  args:
    executable: /bin/bash
  register: check_vt_d
  changed_when: check_vt_d.rc != 0
  failed_when: check_vt_d.rc != 0

- name: Load vfio_pci module to the kernel
  modprobe:
    name: vfio_pci
    state: present
  when: ansible_kernel is version('5.4','<')

- name: Set the vfio_pci module to load on boot
  lineinfile:
    dest: /etc/modules-load.d/vfio_pci.conf
    create: true
    regexp: "^vfio_pci"
    line: "vfio_pci"
    mode: 0644
  when: ansible_kernel is version('5.4','<')

- name: Create sriov system service
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    mode: "{{ item.mode }}"
    owner: root
    group: root
  loop:
    - {src: 'sriov', dest: '/etc/default/sriov', mode: 644}
    - {src: 'sriov.sh.j2', dest: '/usr/local/bin/sriov.sh', mode: 'a+x'}
    - {src: 'sriov.service.j2', dest: '/etc/systemd/system/sriov.service', mode: 644}
  notify: enable sriov.service

- name: Flush handlers
  meta: flush_handlers

- name: Add kernel boot parameters to the grub
  lineinfile:
    dest: /etc/default/grub
    regexp: '^GRUB_CMDLINE_LINUX="(?!.* {{ item.regex }})(.*)"'
    line: 'GRUB_CMDLINE_LINUX="\1 {{ item.context }}"'
    state: present
    backrefs: true
  loop:
    - {regex: 'intel_iommu=', context: 'intel_iommu=on'}
    - {regex: 'transparent_hugepage=', context: 'transparent_hugepage=never'}
    - {regex: 'default_hugepagesz=', context: 'default_hugepagesz=1G'}
    - {regex: 'hugepagesz=1G', context: 'hugepagesz=1G hugepages={{ sriov_1g_hugepages }}'}
  notify: update grub