Has anyone ever got SR-IOV working with Chelsio T420-CR on Hyper-V 2016/2019?

[Dreece]

Google unfortunately is not my best friend when it comes to the Chelsio T420-CR cards, effectively zero information regarding configuring these cards on Windows, plenty information for Linux though.

I have been unable to get SR-IOV to work, also VMQ doesn't appear to work on Hyper-V Windows 2016 and 2019.

After countless hours of going between Intel NICs and T420-CR NICs, I have deduced that T420-CR is effectively crippled for more recent Windows operating systems past Windows 2012 R2. Ironically RDMA works great across all recent Windows hosts though.

If my deduction is incorrect, then I am all ears ladies/gents...

 

[tqiut]

According to this document from Chelsio
https://service.chelsio.com/downloa...e/ChelsioT5-UnifiedWire-Windows-UserGuide.pdf

T4 family of adapters are not supported on Windows 2016 Server & 10

 

[Dreece]

Yes this was discovered over a year ago. We went to T5 and then T6 and then upgraded to 100G switches and onto Mellanox, even dabbled with sluggish featureless intels and slapped a few drunk-driver broadcoms around while we were at it.

Mellanox won the battle of tinkering.

 

[Net-Runner]

Mellanox won the battle of tinkering.

Mellanox wins every battle Great hardware. What was pretty interesting about Chelsio recently is its built-in driver-based NVMe-oF initiator. Did you have a chance to try it How is NVMe-oF doing? Part 2: Chelsio NVMe-oF Initiator + Linux SPDK NVMe-oF Target - Hyper-V Blog?