hyper-v Hyper-V 2019 host -- FreeBSD 12.2 guest SR-IOV networking not working

Hello,

I have been trying to resolve an issue with SR-IOV and FreeBSD (12.2). It detects the driver as iavf. From searching around, it seems this should all be functional (Intel, Microsoft, Supermicro, FreeBSD). Yet, the networking simply does not work (which means no copying from terminal because everything is through Hyper-V for now).

FreeBSD: http://manpages.ubuntu.com/manpages/focal/man4/iavf.4freebsd.html

Intel reference: https://www.intel.com/content/www/us/en/support/articles/000005722/ethernet-products.html

Supermicro (Intel X722 reference): https://www.supermicro.com/support/faqs/img_lib/28383.pdf

Microsoft reference: https://docs.microsoft.com/en-us/wi...supported-freebsd-virtual-machines-on-hyper-v

I have tried disabling RSS on Hyper-V and that doesn't help. Windows guests on the Hyper-V host are able to use the network. FreeBSD is stuck on something. Any ideas what I can look at?
 

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  • FreeBSD-dmesg ifconfig.png
    FreeBSD-dmesg ifconfig.png
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  • FreeBSD 12.2 iavf VF does not support RSS capability.png
    FreeBSD 12.2 iavf VF does not support RSS capability.png
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