##
##   Copyright (c) 2020-2021 Intel Corporation.
##
##   Licensed under the Apache License, Version 2.0 (the "License");
##   you may not use this file except in compliance with the License.
##   You may obtain a copy of the License at
##
##       http://www.apache.org/licenses/LICENSE-2.0
##
##   Unless required by applicable law or agreed to in writing, software
##   distributed under the License is distributed on an "AS IS" BASIS,
##   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
##   See the License for the specific language governing permissions and
##   limitations under the License.
##
---
- name: install Python3 from epel-release
  package:
    name:
      - python36
      - python36-devel
      - libselinux-python
    state: present
    enablerepo: "epel"
  when:
    - ansible_distribution == 'RedHat' or ansible_distribution == 'CentOS'
    - ansible_distribution_version < '8'

- name: install dpdk-devel required for libraries enablement in RHEL / CentOS >= 8.2
  dnf:
    name: dpdk-devel
  when: ansible_distribution in ["RedHat", "CentOS"] and ansible_distribution_version >= '8.2'

- name: build and install dpdk using meson and ninja tools
  block:
    - name: install building tools as python packages
      pip:
        name:
          - selinux
          - meson>=0.53.2,<0.60.0
          - ninja>=1.10.0
          - pyelftools>=0.26
        state: present
      register: pip_result
      retries: 5
      until: pip_result is succeeded
      delay: 5

    - name: meson build for ease of compiling and linking libraries enablement
      command: "meson build"
      args:
        chdir: "{{ dpdk_dir }}"

    - name: configure DPDK with ninja
      command: "ninja"
      args:
        chdir: "{{ dpdk_dir }}/build"

    - name: install DPDK with ninja
      command: "ninja install"
      args:
        chdir: "{{ dpdk_dir }}/build"

    - name: update the dynamic linker cache
      command: "ldconfig"
      args:
        chdir: "{{ dpdk_dir }}/build"
  vars:
    ansible_python_interpreter: /usr/bin/python3

- name: Ensure dpdk libs is in loader search path on RHEL/CentOS
  copy:
    dest: "/etc/ld.so.conf.d/libdpdk-x86_64.conf"
    content: "/usr/local/lib64/"
    mode: 0644
    owner: root
    group: root
  become: yes
  when: ansible_os_family == "RedHat"

- name: find dpdk tools
  find:
    path: "{{ dpdk_dir }}"
    patterns: "dpdk-devbind.py"
    recurse: yes
  register: dpdk_tools_dir

- name: set path to dpdk usertools directory
  set_fact:
    dpdk_tools: "{{ dpdk_tools_dir.files[0].path }}"

- name: load userspace modules
  modprobe:
    name: "{{ item }}"
    state: present
  with_items:
    - vfio-pci
    - uio

- name: install dpdk-devbind.py in /usr/local/bin
  copy:
    remote_src: yes
    src: "{{ dpdk_tools }}"
    dest: "/usr/local/bin/dpdk-devbind.py"
    mode: 0700
    owner: root
    group: root
  become: yes

- name: clone intel module
  git:
    repo: "{{ dpdk_kmods_repo }}"
    dest: "{{ dpdk_kmods_dest }}"
    version: 'main'
    force: yes

- name: apply fix to Makefile
  replace:
    path: "{{ dpdk_kmods_dest }}/linux/igb_uio/Makefile"
    regexp: "\\(PWD\\)"
    replace: "(CURDIR)"
    mode: "0644"

- name: build intel module
  make:
    chdir: "{{ dpdk_kmods_dest }}/linux/igb_uio"

- name: load intel module
  command: "insmod {{ dpdk_kmods_dest }}/linux/igb_uio/igb_uio.ko"
  register: result
  failed_when: "'No such file or directory' in result.stderr"
  changed_when: "'already bound' not in result.stderr"