Help with ConnectX 3 SR-IOV with Linux host and windows guest via kvm

[okrasit]

I did that and they both came back exactly as they were before.
I've tried with default Windows driver and with MLNX_VPI_WinOF-5_50_53000_All_Win2019_x64, in which case there was a driver version mismatch between VPI and ETH. So what's the correct process here?

The microsoft driver should work, so it points in the direction of linux ofed
I did get that error 10, when I had winof driver on the VPI and microsoft one on the ethernet device.

 

[okrasit]

Here's one important thing to notice:

If the "fast start-up" (fast boot) is enabled in windows, the mlx vpi device will get the error 43, requiring reboot or disable/enable toggling. That is, with a patched kernel driver or a working linux ofed (if such a thing even exists anymore).

 

[rootpeer]

Hi guys, any chance for a patch for kernel 5.16?

@okrasit ?

 

[qwerty0987654321]

Hi guys, any chance for a patch for kernel 5.16?

@okrasit ?

here is dirty rebase of @okrasit patches, that I use with 5.17-5.18 kernels

mlx4.patch

drive.google.com

 

[dwalme]

It's been a couple years and I am running into this same issue. Proxmox 8.3 running 6.8 or 6.11 kernels that have the broken 4.0-0 mlx4 kernel driver.

My Linux skills are limited. Before I dive into figuring out how to use this patch does anyone know offhand if this will still work with newer kernels?