Change VLAN interface naming scheme

The VLAN alias interface name may exceed the maximum interface
name length as defined by the kernel, depending on some hardware.
This commit changes the vlan naming convention from device name plus
VLAN ID to VLAN plus VLAN ID.

Closes-Bug: 1817593
Depends-On: https://review.opendev.org/#/c/686728/

Change-Id: I8a74e1d47e0ab3ef261f9512a8887d7f0de66064
Signed-off-by: Teresa Ho <teresa.ho@windriver.com>

bsp-files/kickstarts/post_net_common.cfg

@@ -94,7 +94,7 @@ else
 
     # Persist the boot device to the platform configuration. This will get
     # overwritten later if the management_interface is on a bonded interface.
-    echo management_interface=$mgmt_dev.$mgmt_vlan >> /etc/platform/platform.conf
+    echo management_interface=vlan$mgmt_vlan >> /etc/platform/platform.conf
 
     # Build networking scripts
     cat << EOF > /etc/sysconfig/network-scripts/ifcfg-lo
@@ -116,14 +116,15 @@ IPV6_AUTOCONF=no
 LINKDELAY=20
 EOF
 
-    cat << EOF > /etc/sysconfig/network-scripts/ifcfg-$mgmt_dev.$mgmt_vlan
-DEVICE=$mgmt_dev.$mgmt_vlan
+    cat << EOF > /etc/sysconfig/network-scripts/ifcfg-vlan$mgmt_vlan
+DEVICE=vlan$mgmt_vlan
 BOOTPROTO=dhcp
 DHCLIENTARGS=$dhclientargs
 IPV6INIT=$ipv6init
 DHCPV6C=$dhcpv6c
 ONBOOT=yes
 IPV6_AUTOCONF=no
+PHYSDEV=$mgmt_dev
 VLAN=yes
 LINKDELAY=20
 EOF
@@ -136,7 +137,7 @@ EOF
     # Bring up the mgmt vlan so that a dhcp lease is acquired and an address is
     # setup prior to the post-install reboot.  This is so that the timing of the IP
     # address allocation is similar to how normal/non-pxe installation works.
-    mgmt_iface=$mgmt_dev.$mgmt_vlan
+    mgmt_iface=vlan$mgmt_vlan
     dhclient_family=$([[ $mgmt_address_family == "inet" ]] && echo -4 || echo -6)
     ip link add link $mgmt_dev name $mgmt_iface type vlan id $mgmt_vlan
     ip link set up dev $mgmt_iface