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#
# tripleo::host::sriov::numvfs_persistence used by tripleo::host::sriov
#
# === Parameters:
#
# [*vf_defs*]
# (required) Array of <physical_interface>:<numvfs>.
# Example: ['eth1:10','eth2:8']
#
# [*content_string*]
# (required) String which shall be written to the script file.
#
# [*udev_rules*]
# (required) String of lines to write to udev rules to ensure
# VFs are reconfigured if the PCI devices are removed and
# readded without rebooting (e.g. when physical functions were
# allocated to VMs)
#
define tripleo::host::sriov::numvfs_persistence(
$vf_defs,
$content_string,
$udev_rules
){
# Since reduce isn't available, we use recursion to iterate each entries of
# "physical_interface:vfs" and accumulate the content that needs to be
# written to the script file.
include ::stdlib
if empty($vf_defs) {
file { '/etc/sysconfig/allocate_vfs':
ensure => file,
content => $content_string,
group => 'root',
mode => '0755',
owner => 'root',
}
file { '/sbin/ifup-local':
group => 'root',
mode => '0755',
owner => 'root',
content => '#!/bin/bash',
replace => false
}
file { '/etc/udev/rules.d/70-tripleo-reset-sriov.rules':
ensure => file,
group => 'root',
mode => '0755',
owner => 'root',
content => $udev_rules,
replace => true,
}
file_line { 'call_ifup-local':
path => '/sbin/ifup-local',
line => '/etc/sysconfig/allocate_vfs $1',
require => File['/sbin/ifup-local'],
}
} else {
$vfspec = split($vf_defs[0], ':')
$interface = $vfspec[0]
$count = $vfspec[1]
$vfdef_str = "${content_string}[ \"${interface}\" == \"\$1\" ] && echo ${count} > /sys/class/net/${interface}/device/sriov_numvfs\n"
$udev_str = "${udev_rules}KERNEL==\"${interface}\", RUN+=\"/etc/sysconfig/allocate_vfs %k\"\n"
tripleo::host::sriov::numvfs_persistence{"mapped ${interface}":
vf_defs => delete_at($vf_defs, 0),
content_string => $vfdef_str,
udev_rules => $udev_str
}
}
}
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