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4+ port NIC that can properly be separated in iommu?

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The Quad channel nic I have seems to be limited to 2 different iommu groups and nothing I do has let me separate this. So, I'd rather just look for a proper fix a new card. Since I currently have Quad channel upgrading the port count would also be ideal.

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I have a 4port NIC as well, I know that mine has 2 NIC controllers. So I think it is 1 IOMMU group per controller. It sounds like your card has the same design.

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