MP All Models Mellanox ConnectX-3 40 GbE using ATTO FastFrame macOS driver

[rolotrealanis]

Does AppleVTD shows in IOReg?
Have you checked (e.g. with a Linux LiveUSB) that the card was working in Ethernet mode, and not in InfiniBand?

AppleVTD does show on IOReg. I haven't tried to see what mode its working on under Linux. I did boot into windows to check if the card was recognized and it was recognized as an ethernet controller. I'll look into how to verify if its in Ethernet mode.

I also saw someone mentioned putting the card in a different PCIe slot. I have it on a x16 gen 3 slot (its the lowest one furthest away from my CPU. Have a GPU in the first slot, second slot is empty and third slot is where I have the card. Maybe I should also try switching it over.

 

[rolotrealanis]

Does AppleVTD shows in IOReg?
Have you checked (e.g. with a Linux LiveUSB) that the card was working in Ethernet mode, and not in InfiniBand?

So I am deep in this rabbit hoel trying to get this card to work on Mac. I've tried so many things, device properties changes in my opencore config. This gets the card to be recognized as a PCI device with all the device id and vendor id information. however I can't get the driver to load. I've tried adding the driver as a a kext with no success.

I absolutely have AppleVTD enabled, I also have SIP completely disabled.

I just updated the NIC's firmware on Linux and still can't get it recognized on Mac OS. Have you tried a newer operating system? or are you still running Ventura?

also, do you happen to know what firmware version your card is running?

 

[rolotrealanis]

In case anyone needs this as a reference. according to this forum

Ethernet Compatibility List for Mac OS

Because of the Broadcom wifi patches needed for Sonoma and Sequoia. The Ethernet drivers get blocked from loading. So you can't get the AppleEthernet kexts loaded while at the same time having functional wifi for continuity features.

In ventura both can work together because you don't need to patch the broadcom wifi cards.

So I either have to downgrade to Ventura, or just not use the 40 gig cards and stick to the 10 gig Aquantia in my motherboard

 

[rolotrealanis]

I can confirm, I just got the mellanox card working on Sequoia by removing the broadcom patches for wifi. Sooo this sucks. If anyone has any ideas on how to get both working together that would be great.

I guess this means that any 40 gig card that is compatible with Mac OS will never work alongside the broadcom wifi patches.