Messages in this thread | | | Date | Wed, 07 Jan 2015 06:06:44 +0200 | From | Raimonds Cicans <> | Subject | Questions about IOMMU & PCIe switch |
| |
Hello.
We have two kinds of PCIe cards: A1 - based on chip B A2 - based on same chip B but behind PCIe switch
Card A1 work flawlessly in any configuration, but card A2 work flawlessly only if system lack IOMMU or have disabled IOMMU
Questions: Do we have to treat card with PCIe switch in special way? How? Where (PCI bridge driver? card's driver?)? Any examples in kernel?
Thank you.
Raimonds Cicans
| |