How to attach more PCI bus to instance?

asked 2019-12-17 03:51:48 -0500

mottsec gravatar image

Hi, folks

I want to attach more than 32 NiCs to an instance, but it give me error after attaching 26 NiCs. And I found a PCI bus can hold 32 devices at most, the host bridge, ISA bridge, VGA, USB and others have occupied some slot, and the rest slot can only hold 26 NiCs.

I wonder if I can attach another PCI bus to the current PCI bus by PCI bridge, if it is yes, how should I operate it?

Thanks in advance.

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