# SPDX-FileCopyrightText: 2021 Intel Corporation.
#
# SPDX-License-Identifier: Apache-2.0

---
# check if the selected driver module is available on host
- name: Check that selected driver module is available
  # if modinfo fails, lookup loaded modules as modinfo might return error
  # for igb_uio and potentially other modules not included with the kernel
  shell: "modinfo {{ vf_driver.value }} || grep {{ vf_driver.value }} /proc/modules || grep {{ vf_driver.value }} /lib/modules/$(uname -r)/modules.builtin"
  register: shell_result
  ignore_errors: yes
  failed_when: no
  changed_when: no
  with_dict: "{{ item.sriov_vfs | default({}) | combine({'default': item.default_vf_driver}) }}"
  loop_control:
    loop_var: vf_driver

- name: pre-create empty dict for VFs
  set_fact:
    vfs_acc: {}

- name: populate VFs dict with values
  set_fact:
    vfs_acc: "{{ vfs_acc | combine({idx : item.default_vf_driver}) }}"
  loop: "{{ range(item.sriov_numvfs | default(0) | int) | list }}"
  loop_control:
    index_var: idx
    loop_var: vf_default

- name: update VFs dict with default drivers
  set_fact:
    vfs_acc: "{{ vfs_acc | combine({vf.key | regex_replace('.*_(\\d*)', '\\1') | int : vf.value}) }}"
  loop: "{{ item.sriov_vfs | default({}) | dict2items | sort(attribute='key') }}"
  loop_control:
    loop_var: vf
    extended: yes
  when: ansible_loop.index < (item.sriov_numvfs | default(0) | int )

# get a list of VFs PCI addresses and save the configuration
- name: attach VFs driver
  block:
    - name: fetch VFs pci addresses for a PF
      shell: "for vf in /sys/class/net/{{ item.name }}/device/virtfn*;do basename $(readlink -f $vf);done | sort"
      register: vf_pciids
      args:
        executable: /bin/bash
      changed_when: false

    - name: save VF driver binding
      lineinfile:
        path: "{{ sriov_config_path }}/bmra_interfaces"
        line: "{{ this_item[0] }} {{ this_item[1].value }}"
        regexp: "^{{ this_item[0] }}"
        create: yes
        owner: root
        group: root
        mode: '0600'
      loop: "{{ vf_pciids.stdout_lines | zip(vfs_acc | dict2items) | list }}"
      loop_control:
        loop_var: this_item
      when:
        - vf_pciids.stderr|length == 0
        - vf_pciids.stdout_lines|length > 0
  when: shell_result.results | sum(attribute='rc') == 0