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authorkarthik s <ksundara@redhat.com>2016-08-26 21:48:04 +0530
committerkarthik s <ksundara@redhat.com>2016-08-29 19:41:35 +0530
commiteec3bba44b5a7e09dba4d427bd0d3d71a4956a7a (patch)
treee5dd6531b22285007b24470c808f5e6df8d59af4 /manifests/host
parent6a6aeaa95313bf78c0cf19cca6331bc1d23e6563 (diff)
Configure the numvfs for SRIOV interfaces
This patch shall create VFs via the PCI SYS interface. Default value : $::os_service_default Sample Format : ['eth0:4','eth2:128'] For values as in sample format, the sriov_numvfs config files for eth0 and eth2 will have the values 4 and 128 respectively The SR-IOV numvfs configuration shall be persisted in /sbin/ifup-local so that, during the bootup of the compute nodes, the numvfs configuration will be restored. Change-Id: I7450b904475bdf46498d9af633416b3eba12f761 Implements: blueprint tripleo-sriov Signed-off-by: karthik s <ksundara@redhat.com>
Diffstat (limited to 'manifests/host')
-rw-r--r--manifests/host/sriov.pp27
-rw-r--r--manifests/host/sriov/numvfs_persistence.pp55
2 files changed, 82 insertions, 0 deletions
diff --git a/manifests/host/sriov.pp b/manifests/host/sriov.pp
new file mode 100644
index 0000000..a30db42
--- /dev/null
+++ b/manifests/host/sriov.pp
@@ -0,0 +1,27 @@
+# == Class: tripleo::host::sriov
+#
+# Configures host configuration for the SR-IOV interfaces
+#
+# === Parameters
+#
+# [*number_of_vfs*]
+# (optional) List of <physical_network>:<number_of_vfs> specifying the number
+# VFs to be exposed per physical interface.
+# For example, to configure two interface with number of VFs, specify
+# it as ['eth1:4','eth2:10']
+# Defaults to []
+#
+class tripleo::host::sriov (
+ $number_of_vfs = [],
+) {
+
+ if !empty($number_of_vfs) {
+ sriov_vf_config { $number_of_vfs: ensure => present }
+
+ # the numvfs configuration needs to be persisted for every boot
+ tripleo::host::sriov::numvfs_persistence {'persistent_numvfs':
+ vf_defs => $number_of_vfs,
+ content_string => "#!/bin/bash\n"
+ }
+ }
+}
diff --git a/manifests/host/sriov/numvfs_persistence.pp b/manifests/host/sriov/numvfs_persistence.pp
new file mode 100644
index 0000000..1ee402c
--- /dev/null
+++ b/manifests/host/sriov/numvfs_persistence.pp
@@ -0,0 +1,55 @@
+#
+# tripleo::host::sriov::numvfs_persistence used by tripleo::host::sriov
+#
+# === Parameters:
+#
+# [*vf_defs*]
+# (required) Array of of <physical_interface>:<numvfs>.
+# Example: ['eth1:10','eth2:8']
+#
+# [*content_string*]
+# (required) String which shall be written to the script file.
+#
+define tripleo::host::sriov::numvfs_persistence(
+ $vf_defs,
+ $content_string
+){
+ # Since reduce isn't available, we use recursion to iterate each entries of
+ # "physical_interface:vfs" and accumulate the content that needs to be
+ # written to the script file.
+ include ::stdlib
+
+ if empty($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_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"
+ tripleo::host::sriov::numvfs_persistence{"mapped ${interface}":
+ vf_defs => delete_at($vf_defs, 0),
+ content_string => $vfdef_str
+ }
+ }
+}
+