Unable to update application memory using GUI when vswitch type is set to none

[Tao Liu]

Brief Description
-----------------
When modify the application memory setting using GUI with the vswitch type set to none , an error message window popped up unless the user enters a number greater than 0 in the #of vSwitch 1G Hugepages Node fields.

System will not allocate the default huge pages for vswitch when the vswitch type is set to none and the #of vSwitch 1G Hugepages Node fields should be hidden in Update Memory Allocation form.

Severity
--------
Major

Steps to Reproduce
------------------
1.configure a AIO-SX system with the vswitch_type set to none
2 login Horizon dashboard as 'admin'
3 lock the node to modify the memory
4. select page Admin -> Inventory -> Memory -> Update Memory
    a. reduce 512 from the number of 2M-page
    b. add 1 1G-page
   Save the changes

Expected Behavior
------------------
# of vSwitch 1G Hugepages Node fields should be hidden when the vswitch type is set to none. The application memory allocation should be accepted without any errors.

Actual Behavior
----------------
An error message popped up unless the user enters a non-zero value for vswitch huge pages.

Reproducibility
---------------
yes

System Configuration
--------------------
AIO-SX and Multi-node system

Branch/Pull Time/Commit
-----------------------
f/stein as of 2019-04-24

Timestamp/Logs
--------------

[Frank Miller (sensfan22)]

Marking release gating; as this is related to huge pages assigning to Austin to start.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/657733

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/657733
Committed: https://git.openstack.org/cgit/starlingx/gui/commit/?id=9ae249e019ea1762365c7016eeb447f916be6665
Submitter: Zuul
Branch: master

commit 9ae249e019ea1762365c7016eeb447f916be6665
Author: Sun Austin <email address hidden>
Date: Tue May 7 15:25:48 2019 +0800

    Not show vswitch HP field if vswitch type is none

    Change-Id: I38529e3d90034d5525f39bd5610f81e6cbd3edcb
    Closes-Bug: 1826414
    Signed-off-by: Sun Austin <email address hidden>

[Wendy Mitchell (wmitchellwr)]

2019-11-11_20-00-00

[Ghada Khalil (gkhalil)]

Restoring the release tag which was removed by mistake