Which two options are valid modes for VM-FEX in a Cisco UCS Manager port profile?

Modes of Operation

VM-FEX ports can operate in standard mode or high-performance mode.
•Standard Mode
•High-Performance Mode

However when setting up a port profile in Cisco UCS The Host network IO Performance field can only be set to
None
High Performance

As far as I can see
http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/gui/config/guide/1-4/b_UCSM_GUI_Configuration_Guide_1_4/b_UCSM_GUI_Configuration_Guide_1_4_chapter_0100010.pdf

So we have to assume it means the mode of operation rather than the actual options in the fields we can set as part of the port profile

In Cisco UCS- Port Profiles

Port profiles contain the properties and settings that you can use to configure virtual interfaces in Cisco UCS for VM-FEX. The port profiles are created and administered in Cisco UCS Manager. After a port profile is created, assigned to, and actively used by one or more DVSes, any changes made to the networking properties of the port profile in Cisco UCS Manager are immediately applied to those DVSes.

In VMware vCenter, a port profile is represented as a port group. Cisco UCS Manager pushes the port profile names to VMware vCenter, which displays the names as port groups. None of the specific networking properties or settings in the port profile are visible in VMware vCenter. You must configure at least one port profile client for a port profile if you want Cisco UCS Manager to push the port profile to VMware vCenter.

Port Profile Clients

The port profile client determines the DVSes to which a port profile is applied. By default, the port profile client specifies that the associated port profile applies to all DVSes in the VMware vCenter. However, you can configure the client to apply the port profile to all DVSes in a specific datacenter or datacenter folder or only to one DVS