setting rx ring buffer size

Hi,

I am a vmware newbie. I want to set rx ring buffer size on a physical nic in my vmware server.  Currently I use the command "ethtool -G vmnic0 rx 4096" to increase the rx ring size; but I have to execute the command anytime the server reboots.  Is there any command that allows to set the buffer size persistently?

If not can I set the buffer size from vSphere Client instead from esxi shell?  I am using HyperVisor 5.0

Thanks alot!