Hi, we are looking for best solution to configure CFP MSA compatible PHY with MDIO interface. The best would be to have some USB to MDIO adapter with LabView support.
Try SUB-20 http://www.xdimax.com/sub20/sub20.html
It has 2 MDIO channels. One is CFP compatible running at 1.2V with 4MHz MDC frequency.
SUB-20 has integration modules for LabView. Low price, good support, reliability. What else?
We use SUB-20 as I2C master as well and also via LabView module.